WO2020183922A1

WO2020183922A1 - Cleaning sheet

Info

Publication number: WO2020183922A1
Application number: PCT/JP2020/002173
Authority: WO
Inventors: 優佳眞鍋; 須田　朋和
Original assignee: ユニ・チャーム株式会社
Priority date: 2019-03-08
Filing date: 2020-01-22
Publication date: 2020-09-17

Abstract

The purpose of the present disclosure is to provide a cleaning sheet having excellent compactness when in a non-deployed state, and having a superior ability to clean surfaces for cleaning when in a deployed state. The cleaning sheet of the disclosure has the following configuration.　A cleaning sheet (1) having a layered structure (17) and being used in a deployed state, characterized in that: the layered structure (17) comprises a plurality of sheet portions (21, 31, 51, 61) arranged in sequence in the thickness direction (T); the plurality of sheet portions (21, 31, 51, 61) are connected by an immobilization connection part (71) at an immobilization end (3); the cleaning sheet (1) is configured such that the plurality of sheet portions (21, 31, 51, 61) are arranged in sequence as a result of deploying a deployment end (5); at least a portion of the plurality of sheet portions (21, 31, 51, 61) is configured such that the extension length of the deployment end (5) in the direction parallel to the immobilization connection part (71) is longer than the length of the immobilization end (3) in the direction parallel to the immobilization connection part (71).

Description

Cleaning sheet

This disclosure relates to a cleaning sheet.

Due to heightened hygiene awareness, disposable cleaning sheets are commercially available. In addition, various types of cleaning sheets have been developed.
For example, Patent Document 1 describes a disposable cleaning tool having a three-dimensional structure made of paper, non-woven fabric or plastic resin and having cell walls such as honeycomb and lattice, specifically paper, non-woven fabric or plastic. A large number of resin sheets are laminated while sequentially adhering strip-shaped adhesive portions at appropriate intervals, and after adhering the edge on the central axis side of the obtained laminate, the laminate is expanded 360 degrees to obtain the same. A disposable cleaning tool formed by joining front and back sheets of a laminated body is disclosed.

Japanese Unexamined Patent Publication No. 2000-229053

The disposable cleaning tool described in Patent Document 1 is obtained by laminating a plurality of sheets while providing strip-shaped adhesive portions at appropriate intervals and sequentially adhering them, and among the plurality of sheets, the disposable cleaning tool is obtained. Although the part constituting the surface of the disposable cleaning tool can contribute to cleaning the surface to be cleaned, the part constituting the inside of the disposable cleaning tool among a plurality of sheets is unlikely to contribute to cleaning the surface to be cleaned. It was a thing.
Therefore, an object of the present disclosure is to provide a cleaning sheet which is excellent in compactness in the undeployed state and also excellent in cleanability of the surface to be cleaned in the unfolded state.

The present disclosures are cleaning sheets that have a laminated structure having a fixed end portion and a developed end portion and are used by being expanded, and the laminated structures are orthogonal to each other in the first direction and the second direction. And the thickness direction, and the laminated structure is provided with a plurality of sheet portions arranged in order in the thickness direction, and the plurality of sheet portions are provided at the fixed end portion. The cleaning sheet is connected by a fixing connecting portion, and the cleaning sheet is configured so that the plurality of sheet portions are arranged in order by expanding the unfolded end portion, and at least one of the plurality of sheet portions. The portion is configured such that the extension length of the unfolded end portion in the direction parallel to the fixing connecting portion is longer than the length of the fixed end portion in the direction parallel to the fixing connecting portion. I found a cleaning sheet characterized by being.

The cleaning sheet of the present disclosure is excellent in compactness in the undeployed state and also excellent in the cleanability of the surface to be cleaned in the unfolded state.

FIG. 1 is a diagram for explaining a cleaning sheet 1 according to the first embodiment. FIG. 2 is a diagram for explaining the cleaning sheet 1 according to the first embodiment. FIG. 3 is a diagram for explaining the cleaning sheet 1 according to the first embodiment. FIG. 4 is a diagram for explaining the cleaning sheet 1 according to the first embodiment. FIG. 5 is a diagram for explaining the cleaning sheet 1 according to the first embodiment. FIG. 6 is a diagram for explaining the cleaning sheet 1 according to the first embodiment. FIG. 7 is a diagram for explaining the cleaning sheet 1 according to the first embodiment. FIG. 8 is a diagram for explaining the cleaning sheet 1 according to the first embodiment. FIG. 9 is a diagram for explaining the cleaning sheet 1 according to the first embodiment. FIG. 10 is a diagram for explaining the cleaning sheet 1 according to the second embodiment. FIG. 11 is a diagram for explaining the cleaning sheet 1 according to the second embodiment. FIG. 12 is a diagram for explaining the cleaning sheet 1 according to the second embodiment. FIG. 13 is a diagram for explaining the cleaning sheet 1 according to the third embodiment. FIG. 14 is a diagram for explaining the cleaning sheet 1 according to the third embodiment. FIG. 15 is a diagram for explaining the cleaning sheet 1 according to the third embodiment. FIG. 16 is a diagram for explaining the cleaning sheet 1 according to the fourth embodiment. FIG. 17 is a diagram for explaining the cleaning sheet 1 according to the fourth embodiment. FIG. 18 is a diagram for explaining the cleaning sheet 1 according to the fourth embodiment. FIG. 19 is a diagram for explaining the cleaning sheet 1 according to the fourth embodiment. FIG. 20 is a diagram for explaining the cleaning sheet 1 according to the fifth embodiment. FIG. 21 is a diagram for explaining the cleaning sheet 1 according to the fifth embodiment. FIG. 22 is a diagram for explaining a handy cleaning tool 551 for the cleaning sheet 1 according to the fifth embodiment. FIG. 23 is a diagram for explaining the cleaning sheet 1 according to the sixth embodiment. FIG. 24 is a diagram for explaining the cleaning sheet 1 according to the sixth embodiment. FIG. 25 is a diagram for explaining the cleaning sheet 1 according to the sixth embodiment. FIG. 26 is a diagram for explaining the cleaning sheet 1 according to the sixth embodiment. FIG. 27 is a diagram for explaining the cleaning sheet 1 according to the seventh embodiment. FIG. 28 is a diagram for explaining the cleaning sheet 1 according to the seventh embodiment. FIG. 29 is a diagram for explaining the cleaning sheet 1 according to the eighth embodiment. FIG. 30 is a diagram for explaining the cleaning sheet 1 according to the eighth embodiment. FIG. 31 is a diagram for explaining the cleaning sheet 1 according to the ninth embodiment. FIG. 32 is a diagram for explaining a reciprocating structure. FIG. 33 is a diagram for explaining the seat portion.

[Definition]
・ "Non-deployed state" and "deployed state" related to the cleaning sheet
In the present specification, the "non-deployed state" of the cleaning sheet means a state in which the cleaning sheet is not unfolded, specifically, a state in which the cleaning sheet maintains its laminated structure.
In the present specification, the "deployed state" of the cleaning sheet means a state in which the cleaning sheet is unfolded to a predetermined unfolding angle. The deployment angle will be described later.

・ "Deployment angle"
In the present specification, the "deployment angle" refers to a sheet portion at one end and a sheet portion at the other end among a plurality of sheet portions constituting the laminated structure of the cleaning sheets in the cleaning sheet in the unfolded state. However, it means an angle held in the development direction with the other seat portion sandwiched between them.
When the cleaning sheet of the present disclosure has a plurality of laminated structures, each of the plurality of laminated structures has the above-mentioned deployment angle.

-"First direction", "second direction" and "thickness direction", and "deployment direction"
In the present specification, the cleaning sheet in the non-deployed state has a "first direction", a "second direction", a "thickness direction", and a "deployed direction". The "first direction" is divided into one direction in the first direction and another direction in the first direction. The "second direction" is a direction orthogonal to the first direction, and is divided into one direction in the second direction and another direction in the second direction. The "deployment direction" is divided into one deployment direction and the other deployment direction. The "thickness direction" means the thickness direction of the laminated structure, and is divided into one direction in the thickness direction and the other direction in the thickness direction.

-"Redundancy" for the seat part
In the present specification, the redundancy with respect to the seat portion is the actual length of the seat portion in a predetermined direction (for example, the length of the folded seat portion in the unfolded state), and the seat in the predetermined direction. It means a value divided by the apparent length of the portion (for example, the length of the folded sheet portion in the folded state). Examples of the predetermined direction include a direction along the first direction, a first direction, and the like.
By increasing the redundancy, the wavelength, wave height, etc. (“wavelength” and “wave height” will be described later) of the reciprocating structure (the reciprocating structure will be described later) of a plurality of sheet portions constituting the cleaning sheet become large. There is a tendency, and the unfolding angle of the cleaning sheet (more accurately, the unfolding angle per sheet portion) tends to be large.

・ "Direction along a predetermined direction"
In the present specification, the "direction along a predetermined direction" is the predetermined direction, preferably less than 45 °, more preferably 30 ° or less, still more preferably 20 ° or less, and even more preferably 5 ° or less. It means a direction having an intersection angle.
In addition, in this specification, "a direction parallel (or parallel) with a predetermined direction" means a direction in which the intersection angle with a predetermined direction is 5 ° or less.
Examples of the predetermined direction include a first direction, a second direction, a thickness direction, a development direction, and the like.

・ "Fixed end", "Central part" and "Expanded end" related to the cleaning sheet
In the present specification, the "fixed end portion", "central portion" and "developed end portion" of the cleaning sheet are terms for partitioning the cleaning sheet in the second direction in the laminated structure of the cleaning sheet.
The "developed end portion" and the "fixed end portion" mean an end region on the surface to be cleaned side and an end region on the opposite side in the second direction, and the "central portion" is used. , Means the area between the "expanded end" and the "fixed end".

In the above-mentioned "fixed end portion", "central portion" and "expanded end portion", the laminated structure of the cleaning sheet (cleaning sheet in the undeveloped state) is preferably 40%: 20%: 40 in the second direction, respectively. It means a region partitioned by a length ratio of%, more preferably a length ratio of 30%: 40%: 30%, and even more preferably a length ratio of 20%: 60%: 20%.
In the laminated structure of the cleaning sheet, when the length in the second direction is not constant (when the position in the first direction is different and the length in the second direction is different), the above "fixed end portion" is used. , The length of the "central part" and the "expanded end part" is also not constant.

・ "Round-trip structure" for multiple seats
As used herein, the term "reciprocating structure" means a structure in which at least a part of a plurality of sheet portions can be adopted. The above-mentioned "reciprocating structure" refers to a direction in which the unfolded end of the corresponding sheet portion of a plurality of sheet portions extends in the direction in which the corresponding sheet portion extends [for example, a direction along the first direction (preferably) in the cleaning sheet in the unfolded state. Is a direction parallel to the first direction), a direction along the second direction (preferably a direction parallel to the second direction), etc.], and a direction in which the corresponding sheet portion intersects the extending direction (for example, one development direction). Direction and deployment direction It means reciprocating in the other direction, the second direction one direction and the second direction other direction, the first direction one direction, the first direction other direction, etc. (preferably, reciprocating multiple times).

The reciprocating structure is not limited to the one in which the edge on the unfolded end side of the sheet portion forms a waveform, but from the viewpoint of ease of understanding, words such as wavelength, wave height, and period are used. May be explained. The wavelength is the length from the reference point of the cycle having the reciprocating structure to the reference point of the next cycle in the reciprocating direction at the edge on the unfolded end side of the sheet portion (for example, No. 3 shown in FIG. 32. from the first portion 1005 than most developing direction unidirectional D _S1 of 1 cycle 1001, the distance M) to the second portion 1007 than most developing direction unidirectional D _S1 of the second cycle 1003 adjacent to the first cycle 1001 means. Further, wave height, in a certain cycle of reciprocating structure in a direction intersecting the direction in which the seat portion extends (preferably, deployment direction D _S) the maximum length (e.g., as shown in Figure 32, the first cycle 1001 It means the maximum length N).
Further, in the reciprocating structure, the phase difference means the position of the reference point of the reciprocating structure (for example, the portion from one direction in the most developing direction) between the plurality of seat portions (for example, two adjacent seat portions). However, it means that the seat portion is displaced in the extending direction.

In the present specification, the difference between the reciprocating structure of one sheet portion and the reciprocating structure of the other sheet portion means that at least one of the above-mentioned wavelength, wave height and phase is different, and preferably the phases are different. More preferably the phase and wavelength are different, and even more preferably the phase, wavelength and wave height are different. This is from the viewpoint of the effect of the present disclosure.
The sheet portion constituting the reciprocating structure may be referred to as a "wall surface".

・ "Inside" and "Outside" for multiple seats
In the present specification, "inner side" and "outer side" with respect to a plurality of seat portions are terms indicating relative positions of the plurality of seat portions.
Specifically, the fact that a certain sheet portion is arranged inward of the other sheet portion means that in the cleaning sheet (laminated structure) in the non-deployed state, the certain sheet portion is more than the other sheet portion. It means that it is close to the center of the number of sheets of a plurality of sheet parts. Similarly, the fact that one sheet portion is arranged outside the other sheet portion means that in the cleaning sheet (laminated structure) in the undeployed state, one sheet portion has more than one sheet portion than the other sheet portion. It means that it is far from the center of the number of sheets.
As for the inner side and the outer side, there are cleaning sheets in the first direction and the second direction (deployment direction) in the unfolded state.

-"Inner surface" and "outer surface" for multiple seat parts
In the present specification, the "inner surface" and "outer surface" of each of the plurality of sheet portions are the surfaces facing the center of the number of the plurality of sheet portions and the opposite surfaces thereof in the cleaning sheet (laminated structure) in the undeveloped state, respectively. Means.
The inner surface and the outer surface of the cleaning sheet in the unfolded state include those in the first direction and the second direction (deployed direction).

-The "extended length" of the unfolded end and the "length" of the fixed end in the direction parallel to the fixing connection.
In the present specification, the "extended length" of the unfolded end portion in the direction parallel to the fixing connecting portion is the direction parallel to the fixing connecting portion of the unfolded end portion in the extended state. Means length. The above-mentioned extended state includes an unfolded state of the unfolded end portion which is folded.
In the present specification, the "length" of the fixed end portion in the direction parallel to the fixing connecting portion means, as the word implies, the length of the fixed end portion in the direction parallel to the fixing connecting portion.

Specifically, the present disclosure relates to the following aspects.
[Aspect 1]
A cleaning sheet that has a laminated structure with fixed ends and unfolded ends and is used by unfolding.
A plurality of sheet portions in which the laminated structure has a first direction, a second direction, and a thickness direction orthogonal to each other, and the laminated structure is sequentially arranged in the thickness direction. Is equipped with
The plurality of seat portions are connected at the fixed end portion by a fixing connecting portion extending in a direction along the first direction.
The cleaning sheet is configured so that the plurality of sheet portions are arranged in order by expanding the unfolded end portion.
The extension length of the unfolded end portion in the direction parallel to the fixing connecting portion of at least a part of the plurality of sheet portions is larger than the length of the fixed end portion in the direction parallel to the fixing connecting portion. Is configured to be longer,
The above-mentioned cleaning sheet, which is characterized in that.

The cleaning sheet has a predetermined laminated structure and can be in a non-developed state. Therefore, the cleaning sheet is excellent in compactness in the undeployed state, and its volume can be reduced during storage and disposal of the cleaning sheet.
Further, the cleaning sheet is configured so that a plurality of sheet portions are arranged in order in the unfolded state, and at least a part of the plurality of sheet portions is in a direction parallel to the fixing connecting portion. It has a "developed end extension length structure" configured such that the extension length of the unfolded end portion is longer than the length of the fixed end portion in a direction parallel to the fixing connecting portion. Therefore, when the surface to be cleaned is cleaned using the cleaning sheet, due to the above-mentioned "expanded end extension length structure", a plurality of sheet portions sequentially arranged in the expanded state are not limited to the expanded end. The central portion between the fixed end portion and the developed end portion can also be cleaned as a cleaning surface, and the cleaning sheet is excellent in cleanability of the surface to be cleaned.
From the above, the cleaning sheet is excellent in compactness in the undeployed state and also excellent in cleanability of the surface to be cleaned in the unfolded state.

The extension length of the developed end portion of the plurality of sheet portions in the direction parallel to the fixing connecting portion is longer than the length of the fixed end portion in the direction parallel to the fixing connecting portion. If, for example, the extension length of the unfolded end portion is configured to be the same as the length of the fixed end portion, the central portion is unlikely to contribute as a cleaning surface. Tends to be.

[Aspect 2]
The cleaning sheet according to aspect 1, wherein at least a part of the plurality of sheet portions is connected to an adjacent sheet portion among the plurality of sheet portions by a deploying connecting portion at the unfolding end portion.

In the cleaning sheet, at least a part of a plurality of sheet portions is connected to an adjacent sheet portion by a deploying connecting portion at a deploying end portion. Therefore, when the surface to be cleaned is cleaned using the cleaning sheet, the plurality of sheet portions arranged in order are less likely to fall down, and as a new cleaning surface, it becomes easier to come into contact with the surface to be cleaned in order.
From the above, the cleaning sheet is excellent in cleanability of the surface to be cleaned in the unfolded state.

[Aspect 3]
The above-mentioned plurality of sheets are composed of n sheet portions.
The n-sheet portion includes a k-th sheet portion, a (k + 1) th sheet portion, and a (k + 2) th sheet portion.
The k-th sheet portion and the (k + 1) th sheet portion are connected by the k-th expansion connecting portion, which is the above-mentioned expansion connecting portion.
The first (k + 1) sheet portion and the second (k + 2) sheet portion are connected by the first (k + 1) expansion connecting portion, which is the expansion connecting portion.
At least a part of the plurality of k-th expansion connecting portions constituting the k-th expansion connecting portion and at least a part of the plurality of (k + 1) expanding connecting portions constituting the (k + 1) th expansion connecting portion. , Not arranged at overlapping positions in the above thickness direction,
Here, k is at least a part of an integer in the range of 1 to (n-2).
The cleaning sheet according to aspect 2.

Further, in the n sheet portions (plural sheet portions) of the cleaning sheet, the (k + 1) th sheet portion (k is an integer of at least a part in the range of 1 to (n-2), hereinafter omitted). In, at least a part of the plurality of k-th expansion connecting portions and at least a part of the plurality of (k + 1) expansion connecting portions are not arranged at overlapping positions in the thickness direction. Therefore, in the cleaning sheet in the unfolded state, the (k + 1) th sheet portion forms a reciprocating structure in which the first (k + 1) sheet portion alternately reciprocates in one direction in the unfolding direction and the other in the unfolding direction. Further, in the cleaning sheet, the (k + 1) th sheet portion, the kth sheet portion, and the (k + 2) th sheet portion are partially connected.
The k-th sheet portion and the (k + 2) seat portion also facilitate to form a reciprocating structure that alternately reciprocates in one direction in the deployment direction and in the other direction in the deployment direction.

Therefore, for example, when the surface to be cleaned is flat, the (k + 1) th sheet portion is irregularly deformed when it comes into contact with the surface to be cleaned due to its reciprocating structure, and the plurality of sheet portions A certain area (hereinafter referred to as "first area") can be exposed, the first area comes into contact with the surface to be cleaned, and the first area can clean the surface to be cleaned.

When the cleaning sheet is separated from the surface to be cleaned, the reciprocating structure of the (k + 1) th sheet portion has its restoring force, and the (k + 1) th sheet portion is partially connected to the k-th sheet portion and the (k + 2) sheet portion. The cleaning sheet can return to its original shape due to the fact that the cleaning sheet returns to its original shape (hereinafter, the return of the cleaning sheet to its original shape may be referred to as "shape recovery").
Next, when the same surface of the cleaning sheet is brought into contact with the surface to be cleaned again, the first (k + 1) sheet portion is irregularly deformed to expose a region different from the first region (hereinafter, referred to as "second region"). , The second area comes into contact with the surface to be cleaned, and the second area can clean the surface to be cleaned.

As described above, the cleaning sheet exposes a new region of the (k + 1) th sheet portion and creates the new region even when the movement of bringing the cleaning sheet into contact with the surface to be cleaned and then separating the cleaning sheet is repeated. Since the surface to be cleaned can be cleaned by using the cleaning sheet, the surface to be cleaned is excellent in cleanability (hereinafter, the cleaning sheet exposes a new area of a plurality of sheet portions, that is, "new area exposure". Sometimes referred to as "sex").
Further, even when the cleaning sheet is moved to the left or right while the cleaning sheet is in contact with the surface to be cleaned, the first (k + 1) sheet portion exhibits new area exposure and the surface to be cleaned is cleaned. Can be done.

Further, even when the surface to be cleaned is a three-dimensional surface (for example, an uneven surface), when the cleaning sheet is brought into contact with the surface to be cleaned, the third (k + 1) sheet portion is the shape of the three-dimensional surface of the surface to be cleaned. When the cleaning sheet is moved, the cleaning sheet can follow the shape of the surface to be cleaned by demonstrating its softness and shape recovery. In addition, the cleaning sheet exhibits a new area exposure when the cleaning sheet is moved, and the surface to be cleaned can be cleaned using the new area.
From the above, the cleaning sheet is excellent in compactness in the undeployed state and also excellent in cleanability of the surface to be cleaned in the unfolded state.

[Aspect 4]
The cleaning sheet according to aspect 3, wherein the first (k + 1) sheet portion is alternately folded back in the direction along the first direction by a plurality of folded portions extending in the direction along the second direction.

In the cleaning sheet, the (k + 1) th sheet portion is folded back, that is, the (k + 1) th sheet portion has a folded structure, so that the wave height of the reciprocating structure of the (k + 1) th sheet portion is increased. In addition, in the unfolded state of the cleaning sheet, the (k + 1) th sheet portion can be largely unfolded in the unfolding direction, and the unfolding angle of the cleaning sheet can be further increased with a small number of sheet portions. The new area exposure can be increased, and the cleaning sheet in the unfolded state is excellent in the cleanability of the surface to be cleaned.

[Aspect 5]
A plurality of first top portions in which the first (k + 1) sheet portion projects in one direction in the thickness direction, each of which has a first top surface, and another direction in the thickness direction. A plurality of second apexes protruding from the surface, each of which is provided with a second apex surface, and a plurality of k-th deployment connecting portions and a plurality of (k + 1) unfolding connecting portions. However, the cleaning sheet according to the third or fourth aspect, which is arranged on the first top surface and the second top surface, respectively.

In the cleaning sheet, since the plurality of k-deployment connecting portions and the plurality of (k + 1) deployment connecting portions are arranged on the first top surface and the second top surface, respectively, in the unfolded state of the cleaning sheet. , The wave height of the reciprocating structure of the (k + 1) th sheet portion can be increased, and a plurality of sheet portions can be expanded greatly in the expansion direction, and the expansion angle can be increased with a small number of sheet portions. The new area can be exposed, and the cleaning sheet in the unfolded state is excellent in the cleanability of the surface to be cleaned.

[Aspect 6]
The cleaning sheet according to aspect 5, wherein the total area of the plurality of first top surfaces is 50% or more and 100% or less of the area of the first (k + 1) sheet portion in a plan view.

In the cleaning sheet, since the total area of the first top surface is within a predetermined range in a plan view in the thickness direction, the degree of freedom of arranging the k-deployment connecting portion on the first top surface is increased, and the degree of freedom is increased. Since the redundancy of the first (k + 1) sheet portion is increased, the wave height of the reciprocating structure of the first (k + 1) sheet portion and the deployment angle of the cleaning sheet can be increased, and the new area exposure can be increased. ..
Further, when the k-th development connecting portion is an adhesive portion by an adhesive, the adhesive is less likely to exist in a place other than the first top surface due to movement, misalignment, etc. of the adhesive.

[Aspect 7]
The cleaning sheet according to aspect 5 or 6, wherein the total area of the plurality of second top surfaces is 50% or more and 100% or less of the area of the first (k + 1) sheet portion in a plan view.

In the cleaning sheet, since the total area of the second top surface is within a predetermined range in the plan view in the thickness direction, the degree of freedom of arranging the second (k + 1) deployment connecting portion on the second top surface is increased. At the same time, since the redundancy of the first (k + 1) sheet portion is increased, the wave height of the reciprocating structure of the first (k + 1) sheet portion and the deployment angle of the cleaning sheet can be increased, and the new area exposure is increased. Can be done.
Further, when the first (k + 1) development connecting portion is an adhesive portion by an adhesive, the adhesive is less likely to exist in a place other than the second top surface due to the movement of the adhesive, misalignment, and the like.

[Aspect 8]
The k-th sheet portion and the (k + 1) th (k + 1) sheet portion in which the cleaning sheet extends continuously or intermittently from at least a part of the plurality of k-deployment connecting portions toward the fixed end portion are connected. k The cleaning sheet according to any one of aspects 3 to 7, further comprising an auxiliary connecting portion.

Since the cleaning sheet includes a predetermined kth auxiliary connecting portion, it maintains a reciprocating structure formed with the kth auxiliary connecting portion between the kth sheet portion and the (k + 1) th sheet portion. It will be easier to do. Further, in the cleaning sheet, even when the k-th deployment connecting portion is disconnected due to use, the k-th auxiliary connecting portion has a reciprocating structure of the k-th sheet portion and the (k + 1) th sheet portion. Can be maintained, and the above-mentioned new region exposure can be maintained. Therefore, the cleaning sheet in the unfolded state is excellent in the cleanability of the surface to be cleaned.

[Aspect 9]
The laminated structure further includes a pair of base sheet portions arranged at both ends in the thickness direction.
The plurality of sheet portions are arranged side by side in the first direction between the pair of base sheet portions.
Each of the plurality of sheet portions is a bellows structure sheet having a bellows structure in which a plurality of folded portions are alternately folded in one direction in a first direction and another direction in the first direction. The cleaning sheet according to aspect 1 or 2, wherein the sheet areas at both ends forming the bellows structure are connected to the pair of base sheet portions.

In the cleaning sheet, the plurality of sheet portions are bellows structure sheets having a predetermined bellows structure. Therefore, the bellows structure sheet can (i) make its area larger than the sheet having no bellows structure, and (ii) when cleaning the surface to be cleaned while moving the cleaning sheet in the first direction, a plurality. It is possible to prevent the sheet from falling in the first direction, and (iii) in the sheet portion constituting the bellows structure sheet when cleaning the surface to be cleaned while moving the cleaning sheet in the second direction. Even when the sheet portion cleans the surface to be cleaned and becomes dirty, the adjacent sheet portion adjacent to the certain seat portion can clean the surface to be cleaned.
From the above, the cleaning sheet is excellent in the cleanability of the surface to be cleaned.

[Aspect 10]
At least a part of the plurality of sheet portions is at least a part of the plurality of folded portions, and is connected to at least a part of the plurality of folded portions of the sheet portions adjacent to the first direction among the plurality of sheet portions. The cleaning sheet according to the ninth aspect.

In the cleaning sheet, at least a part of a plurality of sheet portions which are bellows structure sheets is at least a part of a plurality of folded portions and is connected to a sheet adjacent to the first direction of the plurality of sheet portions. .. Therefore, when cleaning the surface to be cleaned while moving the cleaning sheet in the first direction, the plurality of sheet portions can prevent the plurality of sheets from falling in the first direction, and thus the cleaning sheet can be used. Excellent cleanability of the surface to be cleaned.

[Aspect 11]
A cleaning sheet that has a laminated structure with fixed ends and unfolded ends and is used by unfolding.
A plurality of sheet portions in which the laminated structure has a first direction, a second direction, and a thickness direction orthogonal to each other, and the laminated structure is arranged in order in the first direction. I have
The plurality of seat portions are connected at the fixed end portion by a fixing connecting portion extending in a direction along the first direction.
The cleaning sheet is configured so that the plurality of sheet portions are arranged in order by expanding the unfolded end portion.
The above-mentioned cleaning sheet, which is characterized in that.

The cleaning sheet has a predetermined laminated structure and can be in a non-developed state. Therefore, the cleaning sheet is excellent in compactness in the undeployed state, and its volume can be reduced during storage and disposal of the cleaning sheet.
Further, the cleaning sheet can be unfolded in the unfolded direction, and in the unfolded state, a plurality of sheet portions are arranged in order. Therefore, when the surface to be cleaned is cleaned using the cleaning sheet, the plurality of sheet portions arranged in order come into contact with the surface to be cleaned in order as a new cleaning surface, and the surface to be cleaned can be cleaned. , The cleaning sheet has excellent cleanability of the surface to be cleaned.
From the above, the cleaning sheet is excellent in compactness in the undeployed state and also excellent in cleanability of the surface to be cleaned in the unfolded state.

[Aspect 12]
The cleaning sheet according to aspect 11, wherein at least a part of the plurality of sheet portions is connected to an adjacent sheet portion among the plurality of sheet portions by a deploying connecting portion at the unfolding end portion.

[Aspect 13]
The cleaning sheet includes a plurality of laminated sheet-like members constituting the plurality of sheet portions, and the fixing connecting portion arranged at the center of the plurality of laminated sheet-like members. The cleaning sheet according to any one of aspects 1 to 12, wherein the cleaning sheet is folded at the fixing connecting portion.

Since the cleaning sheet has a predetermined structure, the cleaning sheet can easily hold the unfolded state, and the cleaning sheet in the unfolded state is excellent in the cleanability of the surface to be cleaned.

[Aspect 14]
The cleaning sheet according to any one of aspects 1 to 13, wherein at least a part of the plurality of sheet portions contains heat-sealing fibers, and the fixing connecting portion is a fusion portion.

In the above cleaning sheet, since the fixing connecting portion is a fused portion, the cleaning sheet can be easily deployed from the undeployed state to the expanded state, and the cleaning sheet in the expanded state is excellent in the cleanability of the surface to be cleaned.

[Aspect 15]
The cleaning sheet according to any one of aspects 1 to 14, wherein at least a part of the plurality of sheet portions contains water-retaining fibers, and the cleaning sheet is a wet type cleaning sheet.

Since the cleaning sheet is a wet type cleaning sheet, when the cleaning sheet is used, the chemical solution held by the reciprocating structure can be continuously supplied to the surface to be cleaned, and the cleaning sheet in the deployed state is cleaned. Excellent surface cleanability.

[Aspect 16]
The cleaning sheet according to any one of aspects 1 to 15, wherein the cleaning sheet further includes a cleaning tool or a grip portion for the user to grip the cleaning sheet.

The cleaning sheet is provided with a cleaning tool or a gripping portion for the user to grip the cleaning sheet. Therefore, it becomes easier for the user to insert the cleaning tool into the grip portion, or for the user to insert a part of the body (for example, hands, legs, etc.) into the grip portion to maintain the unfolded state, which in turn makes it easier. The cleaning sheet in the unfolded state has excellent cleanability of the surface to be cleaned.

[Aspect 17]
The cleaning sheet according to aspect 16, wherein the openings of the grip portion are arranged in the sheet portions arranged at both ends in the thickness direction of the plurality of sheet portions.

In the above cleaning sheet, the opening of the grip portion is arranged in a predetermined sheet portion. Therefore, it is easy for the user to insert the cleaning tool into the grip portion, or the user inserts a part of the body into the grip portion to easily grip the cleaning sheet, and the cleaning sheet in the deployed state is to be cleaned. Excellent surface cleanability.

[Aspect 18]
The cleaning sheet has, as the plurality of sheet portions, a base sheet first portion, a first sheet portion, a second sheet portion, a third sheet portion, a fourth sheet portion, and a base sheet second portion. Prepared in that order
Each of the first sheet portion, the second sheet portion, the third sheet portion, and the fourth sheet portion is a plurality of first tops protruding in one direction in the thickness direction, and each of them is the first top. It includes one having a surface and a plurality of second apexes projecting in the other direction in the thickness direction, each of which has a second apex surface.
The cleaning sheet according to any one of aspects 1 to 17, wherein a plurality of first deployment connecting portions and a plurality of second deploying connecting portions are arranged on the first top surface and the second top surface.

In the cleaning sheet, each of the first sheet portion, the second sheet portion, the third sheet portion, and the fourth sheet portion includes a plurality of first top portions and a plurality of second top portions. Therefore, in the cleaning sheet in the unfolded state, the wave height of each reciprocating structure of the first sheet portion, the second sheet portion, the third sheet portion, and the fourth sheet portion can be increased, and the first sheet portion to the fourth sheet portion can be increased. The seat portion can be greatly expanded in the expansion direction. As a result, the cleaning sheet in the unfolded state is excellent in the cleanability of the surface to be cleaned.

[Aspect 19]
Each of the plurality of first tops and the plurality of second tops arranged on the second sheet portion is smaller than each of the plurality of first tops and the plurality of second tops arranged on the first sheet portion, and the first In aspect 18, each of the plurality of first tops and the plurality of second tops arranged on the three-seat portion is smaller than each of the plurality of first tops and the plurality of second tops arranged on the fourth seat portion. The listed cleaning sheet.

In the cleaning sheet, in the cleaning sheet in the unfolded state, the first sheet portion and the fourth sheet portion form a reciprocating structure having a relatively large wave height, and the second sheet portion and the third sheet portion are relatively. It forms a reciprocating structure with a small wave height. The reciprocating structure with a relatively small wave height penetrates into the details of the object to be cleaned, which has a complicated shape, cleans the surface to be cleaned in the details of the object to be cleaned, and fine dust adhering to the object to be cleaned. Can be taken in, and it is easy to restore the original shape even if it is deformed by contact with the object to be cleaned. Further, the reciprocating structure having a relatively large wave height can clean the large surface to be cleaned of the object to be cleaned, and the reciprocating structure having a relatively small wave height inside can take in the dust left behind. it can.

The cleaning sheet of the present disclosure will be described in detail below.
<< First Embodiment >>
1 to 9 are diagrams for explaining the cleaning sheet 1 according to one of the embodiments of the present disclosure (hereinafter, referred to as "first embodiment"). Specifically, FIG. 1 is a perspective view of the front surface, the bottom surface, and the right side surface of the cleaning sheet 1 in the deployed state, which is attached to the handy cleaning tool 251. FIG. 2 is a perspective view of the back surface, the bottom surface, and the left side surface of the cleaning sheet 1 in the deployed state, which is attached to the handy cleaning tool 251. 3 and 4 are a front view and a rear view of the cleaning sheet 1 in the unfolded state attached to the handy cleaning tool 251, respectively. FIG. 5 is a perspective view of the front, plane, and left side of the cleaning sheet 1 in the undeployed state. FIG. 6 is a diagram for explaining the second sheet portion 31. FIG. 7 is a diagram for explaining the first sheet portion 21. FIG. 8 is a left side view of the cleaning sheet 1 in the undeployed state. FIG. 9 is a diagram for explaining a method of manufacturing the cleaning sheet 1.

In the unfolded state, the cleaning sheet 1 is poor in one direction T ₁ in the thickness direction, poor in T _{2 in} the other direction in the thickness direction, poor in one direction D ₁₁ in the first direction, and poor in the other direction D _{12 in} the first direction. The state in which the cleaning sheet 1 is observed is treated as the front surface, the back surface, the flat surface, and the bottom surface, respectively.
The cleaning sheet 1 in the undeployed state is the same as the cleaning sheet 1 in the unfolded state except that the side of the first portion 13a of the base sheet is the front surface and the side of the second portion 13b of the base sheet is the back surface.

The cleaning sheet 1 according to the first embodiment, expanded in the deployment direction D _S, a cleaning sheet used attached to a handy cleaning tool 251. Further, the cleaning sheet 1 according to the first embodiment is a wet type cleaning sheet containing a chemical solution. The cleaning sheet 1 according to the first embodiment can form an undeployed state and an unfolded state. Specifically, a single cleaning sheet portion 19 in the unfolded state and a single cleaning sheet portion 19 in the undeployed state. It is possible to form the laminated structure 17 of the above. Further, in the cleaning sheet 1 according to the first embodiment, the cleaning sheet portion 19 has a deployment angle of about 180 ° in the deployed state.

The cleaning sheet 1 (laminated structure 17) in the non-deployed state includes a first direction D ₁ , a second direction D _2, and a thickness direction T that are orthogonal to each other. The second direction D ₂ coincides with the development direction D _S in a plan view. The first direction D ₁ is divided into a first direction one direction D ₁₁ which is opposite to each other and a first direction other direction D _12, and the second direction D ₂ is a _second direction which is opposite to each other. It is divided into one direction D ₂₁ and the second direction other direction D _22, and the thickness direction T is divided into a thickness direction unidirectional T ₁ which is opposite to each other and a thickness direction other direction T _2. To. Deployment direction D _S is the deployment direction direction D _S1 are opposite to each other, is partitioned into a developing direction other direction D _S2.

The cleaning sheet 1 (cleaning sheet portion 19) in the unfolded state is a first so that the cleaning sheet 1 (laminated structure 17) in the undeployed state and the base sheet second portion 13b, which will be described later, have the same direction. It has a direction D ₁ , a second direction D _{2, a} thickness direction T, and a deployment direction D _S.

In the laminated structure 17, the plurality of sheet portions are, in order, in the thickness direction unidirectional T ₁ , the base sheet first portion 13a, the first sheet portion 21, the second sheet portion 31, the third sheet portion 51, and the fourth. It is composed of a seat portion 61 and a base sheet second portion 13b. The base sheet first portion 13a includes a grip portion forming sheet first portion 11a arranged on a surface opposite to the first sheet portion 21 for forming the grip portion 91. Further, the base sheet second portion 13b includes a grip portion forming sheet second portion 11b arranged on a surface opposite to the fourth seat portion 61 to form the grip portion 91.

In the undeveloped state, the laminated structure 17 has a fixed end portion 3 and an unfolded end portion 5, and each of the fixed end portion 3 and the unfolded end portion 5 extends in a direction parallel to the first direction D ₁ . The fixed end portion 3 and the developed end portion 5 are arranged so as to be separated from each other in the second direction D ₂ with the central portion 7 in between.
The cleaning sheet 1 in the non-deployed state (see FIG. 5) is an axis fixed end 3, by expanding the deployment end 5 in the deployment direction D _S, the cleaning in the deployed state the sheet 1 (FIGS. 1 to 4 ) Is formed, and the cleaning sheet 1 in the deployed state is used for cleaning the surface to be cleaned.

The first seat portion 21, the second seat portion 31, the third seat portion 51, and the fourth seat portion 61 are each developed in a direction parallel to the fixing connecting portion 71 described later (first direction D ₁ ). The extension length of the end portion 5 is longer than the length of the fixed end portion 3 in the direction parallel to the fixing connecting portion 71 (first direction D ₁ ).

Each of the grip portion forming sheet first portion 11a, the first sheet portion 21, the second sheet portion 31, the third sheet portion 51, the fourth sheet portion 61, and the grip portion forming sheet second portion 11b is heat-melted. It is composed of a spunlace non-woven fabric containing adhesive fibers and water-retaining fibers, and contains a chemical solution. Further, the base sheet first portion 13a and the base sheet second portion 13b are made of a spunbonded non-woven fabric made of heat-sealing fibers.

As shown in FIG. 6, the second sheet portion 31 is alternately folded back in the first direction D ₁ by a plurality of folded portions (not marked) extending in the second direction D _2. A plurality of second sheet portion first top portions 33 projecting in one direction T ₁ in the thickness direction, each of which has a second sheet portion first top surface 33a, a thickness direction, and the like. A plurality of second seat portions, second tops 35, projecting in the direction T ₂ , each of which comprises a second seat portion, second top surface 35a.

In other words, the second sheet portion 31 has a plurality of Ω ₁ structures projecting in one direction T ₁ in the thickness direction and a plurality of Ω ₂ structures projecting in the other direction T ₂ in the thickness direction, specifically, It has a plurality of second Ω ₁ structures 37 projecting in one direction T ₁ in the thickness direction and a plurality of second Ω ₂ structures 39 projecting in the other direction T ₂ in the thickness direction, and has a plurality of second Ω ₁ structures 39. The structure 37 is continuous in the first direction D ₁ , and the plurality of second Ω ₂ structures 39 are continuous in the first direction D ₁ . Further, each of the plurality of second Ω ₁ structures 37 and each of the plurality of second Ω ₂ structures 39 have the same shape although the directions are opposite to each other (based on the second Ω ₁ structure 37, the “second Ω ₂ structure”. 39 = 2nd Ω ₁ structure 37 ”), and are arranged alternately in the 1st direction D ₁ .

Specifically, each of the plurality of second Ω ₁ structures 37 is a pair of first wall portions 41 extending from both ends of the second sheet portion first top surface 33a and the second sheet portion first top surface 33a. And a pair of first bottom portions 43 extending from the edge of the pair of first wall portions 41. Further, each of the plurality of second Ω ₂ structures 39 is a pair of a pair of second wall portions 45 extending from both ends of the second sheet portion second top surface 35a and the second sheet portion second top surface 35a. It is provided with a pair of second bottom portions 47 extending from the edge of the second wall portion 45 of the.

The first bottom portion of the pair in each of the plurality of first 2 [Omega ₁ Structure 37 43 the second sheet portion second top surfaces 35a of the 2 [Omega ₂ structure 39 constituted, and a pair in each of the plurality of the 2 [Omega ₂ Structure 39 The second bottom portion 47 constitutes the first top surface 33a of the second seat portion of the second Ω ₁ structure 37.

In each of the second Ω ₁ structures 37, the first top surface 33a of the second sheet portion, each of the pair of first wall portions 41, and each of the pair of first bottom portions 43 have a length of 2: 1: 1. It has a ratio (length ratio in the first direction D ₁ ). Therefore, in a plan view (plan view from the side of the first top surface 33a of the second sheet portion), the total area of the first top surface 33a of the second sheet portion is approximately 100% of the area of the second sheet portion 31.

Further, in each of the second Ω ₂ structures 39, the second top surface 35a of the second sheet portion, each of the pair of second wall portions 45, and each of the pair of second bottom portions 47 are 2: 1: 1. It has a length ratio (length ratio in the first direction D ₁ ). Therefore, in a plan view (plan view from the second top surface 35a side of the second sheet portion), the total area of the second top surface 35a of the second sheet portion is approximately 100% of the area of the second sheet portion 31. The redundancy of the second sheet portion 31 is 3.0.

The second sheet portion 31 has the above-mentioned plurality of folded portions (a plurality of second Ω ₁ structure 37 and a plurality of second Ω ₂ structures 39), and the above-mentioned folded portion (a plurality of second Ω ₁ structure 37 and a plurality of second Ω). _{With the two} structures 39), the fixed end portion 3 is connected by the fixing connecting portion 71. Therefore, the second sheet portion 31 cannot open the folded-back portion (plurality of the second Ω ₁ structure 37 and the plurality of second Ω ₂ structures 39) at the fixed end portion 3, but the folded-back portion (plurality of the second Ω ₁ structure 37 and the plurality of second Ω ₂ structures 39) at the developed end portion 5. A plurality of second Ω ₁ structures 37 and a plurality of second Ω ₂ structures 39) can be opened. As a result, in the second sheet portion 31, the extension length of the developed end portion 5 in the direction parallel to the fixing connecting portion 71 (first direction D ₁ ) is in the direction parallel to the fixing connecting portion 71 (first direction). It is longer than the length of the fixed end 3 in the direction D ₁ ).

As shown in FIG. 8, the third sheet portion 51 has a plurality of Ω ₁ structures projecting in one direction T ₁ in the thickness direction and a plurality of Ω ₂ structures projecting in T ₂ in the other direction in the thickness direction. Specifically, it has a plurality of third Ω ₁ structures 53 projecting in one direction T ₁ in the thickness direction and a plurality of third Ω ₂ structures 55 projecting in the other direction T ₂ in the thickness direction. The plurality of third Ω ₁ structures 53 are continuous in the first direction D ₁ , and the plurality of third Ω ₂ structures 55 are continuous in the first direction D ₁ .

Further, each of the plurality of first 3 [Omega] ₁ structure 53, and each of the plurality of the 3 [Omega] ₂ structure 55, respectively, in the second sheet part 31, and each of the plurality of first 2 [Omega ₁ structure 37, a plurality of the 2 [Omega ₂ (If the first 2 [Omega ₁ structure 37 as a reference, "the 3 [Omega] ₁ structure 53 = first 3 [Omega] ₂ structure 55 = first 2 [Omega ₁ structure 37" a.) the same shape as the respective structures 39 have a plurality of the 3 [Omega] Each of the ₁ structures 53 is arranged to face each of the plurality of 2nd Ω ₂ structures 39, and in particular, to coincide with the thickness direction T.
In the third sheet portion 51, for the same reason as the second sheet portion 31, the extension length of the unfolded end portion 5 in the direction parallel to the fixing connecting portion 71 (first direction D ₁ ) is the fixing connecting portion. It is longer than the length of the fixed end 3 in the direction parallel to 71 (first direction D ₁ ).

As shown in FIG. 7, the first sheet portion 21 has a plurality of Ω ₁ structures projecting in one direction T ₁ in the thickness direction and a plurality of Ω ₂ structures projecting in T ₂ in the other direction in the thickness direction. Specifically, it has a plurality of first Ω ₁ structures 23 projecting in one direction T ₁ in the thickness direction and a plurality of first Ω ₂ structures 25 projecting in the other direction T ₂ in the thickness direction. The plurality of first Ω ₁ structures 23 are continuous in the first direction D ₁ , and the plurality of first Ω ₂ structures 25 are continuous in the first direction D ₁ .

Each of the plurality of first Ω ₁ structures 23 and each of the plurality of first Ω ₂ structures 25 have the same shape although the directions are opposite to each other, and are arranged alternately in the first direction D ₁ . Further, each of the plurality of first Ω ₁ structures 23 and each of the plurality of first Ω ₂ structures 25 are each of the plurality of second Ω ₁ structures 37 and the plurality of second Ω ₂ in the second sheet portion 31, respectively. It is larger than each of the structures 39 and has a similar shape (based on the second Ω ₁ structure 37, “1st Ω ₁ structure 23 = 1st Ω ₂ structure 25> 2nd Ω ₁ structure 37”).
In the first sheet portion 21, for the same reason as the second sheet portion 31, the extension length of the unfolded end portion 5 in the direction parallel to the fixing connecting portion 71 (first direction D ₁ ) is the fixing connecting portion. It is longer than the length of the fixed end 3 in the direction parallel to 71 (first direction D ₁ ).

As shown in FIG. 8, the fourth sheet portion 61 has a plurality of Ω ₁ structures projecting in one direction T ₁ in the thickness direction and a plurality of Ω ₂ structures projecting in the other direction T ₂ in the thickness direction. Specifically, it has a plurality of fourth Ω ₁ structures 63 projecting in one direction T ₁ in the thickness direction and a plurality of fourth Ω ₂ structures 65 projecting in the other direction T ₂ in the thickness direction. The plurality of fourth Ω ₁ structures 63 are continuous in the first direction D ₁ , and the plurality of fourth Ω ₂ structures 65 are continuous in the first direction D ₁ .

Each of the plurality of 4th Ω ₁ structures 63 and each of the plurality of 4th Ω ₂ structures 65 are each of the plurality of 1st Ω ₁ structures 23 and the plurality of 1st Ω ₂ structures 25 in the first sheet portion 21, respectively. It has the same shape as each of the above (based on the 2nd Ω ₁ structure 37, “4th Ω ₁ structure 63 = 4th Ω ₂ structure 65> 2nd Ω ₁ structure 37”), but a plurality of 4th Ω ₁ structures. Each of the 63 is arranged to face each of the plurality of first Ω ₂ structures 25, in particular to coincide with the thickness direction T.
In the fourth seat portion 61, for the same reason as the second seat portion 31, the extension length of the unfolded end portion 5 in the direction parallel to the fixing connecting portion 71 (first direction D ₁ ) is the fixing connecting portion. It is longer than the length of the fixed end 3 in the direction parallel to 71 (first direction D ₁ ).

The laminated structure 17 is a fixing connecting portion 71 composed of a fused portion formed by fusing the grip portion forming sheet first portion 11a to the grip portion forming sheet second portion 11b at the fixed end portion 3. Is equipped with. The fixing connecting portion 71 extends in parallel with the first direction D ₁ and connects the grip portion forming sheet first portion 11a to the grip portion forming sheet second portion 11b.

The laminated structure 17 is connected at the unfolding end portion 5 by a unfolding connecting portion 73 composed of an adhesive. The unfolding connecting portion 73 is a second unfolding connecting portion that connects the first unfolding connecting portion 75 that connects the first seat portion 21 and the second seat portion 31 and the second seat portion 31 and the third seat portion 51. 77, a third deployment connecting portion 79 connecting the third seat portion 51 and the fourth seat portion 61, and a fourth deploying connecting portion 81 connecting the fourth seat portion 61 and the base sheet second portion 13b. It includes a fifth deployment connecting portion 83 that connects the base sheet first portion 13a and the first sheet portion 21.

The first deployment connecting portion 75 that connects the first sheet portion 21 and the second sheet portion 31 is the center of the first top surface 33a of each of the plurality of second Ω ₁ structures 37 of the second sheet portion 31. It includes six first deployment connecting portions 75a arranged (center of first direction D ₁ ). The six first deployment connecting portions 75a also include two first deployment connecting portions 75a arranged at both ends of the first direction D ₁ of the first sheet portion 21.

The second deployment connecting portion 77 that connects the second seat portion 31 and the third seat portion 51 is the center of the second top surface 35a of each of the plurality of second Ω ₂ structures 39 of the second seat portion 31. It includes five second deployment connecting portions 77a arranged (center of first direction D ₁ ). Since each of the plurality of second Ω ₂ structures 39 and each of the plurality of third Ω ₁ structures 53 are arranged so as to coincide with the thickness direction T, the second deployment connecting portion 77a has a plurality of second unfolding connecting portions 77a. It can be said that the 3Ω ₁ structure 53 is arranged at the center of the first top surface 57a of each third sheet portion (center of the first direction D ₁ ).

The six first unfolding connecting portions 75a and the five second unfolding connecting portions 77a are arranged apart from each other in the first direction D ₁ so as not to overlap in the thickness direction T. The six first deployment connecting portions 75a and the five second deployment connecting portions 77a are the lengths of the first direction D ₁ of the second Ω ₁ structure 37 (= the first direction of the _second Ω ₂ structure 39). Only half of the length of D ₁ ) is spaced apart in the first direction D ₁ .

The third unfolding connecting portion 79 that connects the third sheet portion 51 and the fourth sheet portion 61 is the second top surface (reference numeral) of each of the plurality of third Ω ₂ structures 55 of the third sheet portion 51. It is provided with six third deployment connecting portions 79a arranged at the center (not attached) (center of first direction D ₁ ). The six third deployment connecting portions 79a include two third deployment connecting portions 79a arranged at both ends of the first direction D ₁ of the third sheet portion 51. The six third deployment connecting portions 79a of the third deployment connecting portion 79 are arranged so as to overlap the six first deployment connecting portions 75a of the first deployment connecting portion 75 in the thickness direction T. Has been done.

Therefore, the six third deployment connecting portions 79a of the third deployment connecting portion 79 are the five second deployment connecting portions 77a of the second deployment connecting portion 77 and the _{first of} the third Ω ₁ structure 53. the length in the direction D ₁ only (= first length in the direction D ₁ of the first 3 [Omega] ₂ structure 55) half, are spaced apart from each other in the first direction D _1. The six third deployment connecting portions 79a of the third deployment connecting portion 79 are arranged so as not to overlap with the five second deploying connecting portions 77a of the second deploying connecting portion 77 in the thickness direction T. Has been done.

The fourth deploying connecting portion 81 that connects the fourth sheet portion 61 and the second portion 13b of the base sheet is formed on the second top surface 67a of each of the plurality of fourth Ω ₂ structures 65 of the fourth seat portion 61. It includes five fourth deployment connecting portions 81a arranged in the center (center of the first direction D ₁ ). The five fourth unfolding connecting portions 81a include two fourth unfolding connecting portions 81a arranged at both ends of the first direction D ₁ of the fourth sheet portion 61. The five fourth unfolding connecting portions 81a of the fourth unfolding connecting portion 81 exclude the two fourth unfolding connecting portions 81a arranged at both ends of the first direction D ₁ of the fourth sheet portion 61. , The six third deployment connecting portions 79a of the third deploying connecting portion 79 are arranged so as not to overlap in the thickness direction T.

The fifth deployment connecting portion 83 that connects the base sheet first portion 13a and the first sheet portion 21 is the first top surface 27a of each of the plurality of first Ω ₁ structures 23 of the first sheet portion 21. It is provided with five fifth deployment connecting portions 83a arranged at the center of the (center of the first direction D ₁ ). The five fifth deployment connecting portions 83a include two fifth deploying connecting portions 83a arranged at both ends of the first direction D ₁ of the first sheet portion 21. The five fourth unfolding connecting portions 81a of the fourth unfolding connecting portion 81 are arranged so as to overlap the five fifth unfolding connecting portions 83a of the fifth unfolding connecting portion 83 in the thickness direction T. Has been done. The five fifth unfolding connecting portions 83a of the fifth unfolding connecting portion 83, except for the two fifth unfolding connecting portions 83a arranged at both ends of the first direction D ₁ of the first sheet portion 21. It is arranged so as not to overlap with the six first deployment connecting portions 75a of the first deploying connecting portion 75 in the thickness direction T.

The base sheet first portion 13a and the grip portion forming sheet first portion 11a, and the base sheet second portion 13b and the grip portion forming sheet second portion 11b are used to grip the handy cleaning tool 251. The fusing portion 15 for the grip portion is formed so as to form the grip portion 91. Since the fusing portion 15 for the grip portion is a known portion, the description thereof will be omitted.

As shown in FIG. 5, the cleaning sheet 1 in the undeployed state has the base sheet first portion 13a and the base sheet second portion 13b, and a plurality of sheet portions (that is, the first sheet portion 21 and the second sheet portion 31). A pair of unfolding grip portions 85 formed by forming the third seat portion 51 and the fourth seat portion 61) longer on the D ₁₂ side (grip portion 91 side) in the first direction and other directions. There is. Since the pair of unfolding grips 85 (base sheet first portion 13a and base sheet second portion 13b) are separated by a predetermined distance d in the thickness direction T, the user can use the pair of unfolding grips 85. It is easy to deploy the cleaning sheet 1 by grasping.

Gripping a pair of expansion gripping portion 85 of the cleaning sheet 1 in the non-deployed state, when deployed in the deployment direction D _S away the base sheet first portion 13a from the base sheet second portion 13b, the base sheet first portion the first sheet portion 21 which is connected to 13a, the second sheet part 31, a third sheet part 51, a fourth sheet portion 61, and the base sheet second portion 13b is deployed in the deployment direction D _S in order.

Next, in the cleaning sheet 1 in the unfolded state, in addition to the first sheet portion 21 having a plurality of Ω structures, the first sheet portion 21 is unfolded at the first unfolding connecting portion 75a. It will be pulled in one direction, D _S1, or in the other direction, D _S2 . Therefore, in the first direction unidirectional D ₁₁ (first direction other direction D ₁₂ ), the unfolding end portion 5 of the first sheet portion 21 alternately reciprocates in the unfolding direction unidirectional D _S1 and the unfolding direction other direction D _S _2. It has a first reciprocating structure 93.

Similarly, in the cleaning sheet 1 in the unfolded state, the second sheet portion 31, the third sheet portion 51, and the fourth sheet portion 61 are respectively in the first direction one direction D ₁₁ (first direction other direction D ₁₂ ). the second sheet part 31, expansion end 5 of the third sheet part 51 and a fourth sheet portion 61, back and forth alternately in the extending direction in one direction D _S1 and developing direction other direction D _S2, the second reciprocating structure 95, the It has a three-reciprocating structure 97 and a fourth reciprocating structure 99.

Since the Ω structure of the second seat portion 31 and the third seat portion 51 is smaller than the Ω structure of the first seat portion 21 and the fourth seat portion 61, it is different from the second reciprocating structure 95 of the second seat portion 31. , Each of the third reciprocating structure 97 of the third sheet portion 51 has a higher wave height than each of the first reciprocating structure 93 of the first sheet portion 21 and the fourth reciprocating structure 99 of the fourth sheet portion 61. Tends to be smaller.

Therefore, the second reciprocating structure 95 and the third reciprocating structure 97, which have relatively small wave heights, enter the details of the object to be cleaned having a complicated shape while flexibly changing their shapes, and the second reciprocating structure 95 and the third reciprocating structure 97. The wall surface constituting the third reciprocating structure 97 cleans the surface to be cleaned in detail of the object to be cleaned, and can take in fine dust adhering to the object to be cleaned, and comes into contact with the object to be cleaned. Even if it is deformed, it can be easily restored to its original shape. Further, the wall surfaces constituting the first reciprocating structure 93 and the fourth reciprocating structure 99, which have relatively large wave heights, purify the large surface to be cleaned of the object to be cleaned while flexibly changing the shape of the wall surface. The dust left behind by the two reciprocating structure 95 and the third reciprocating structure 97 can be taken in.

The cleaning sheet 1 according to the first embodiment can be manufactured, for example, as follows.
The first non-woven fabric 201, the second non-woven fabric 203, the base sheet 205, and the gripping portion forming sheet 207 are laminated in this order to form the laminated sheet 209. An exploded perspective view of the laminated sheet 209 is shown in FIG. A grip portion forming sheet 207 is fused to the base sheet 205, and a grip portion 91 is formed between them.

Next, the laminated sheet 209 is fused along the first direction center line CL ₁ extending through the center of the second direction D ₂ and extending in the first direction D ₁ to form the fused portion 211. Next, the laminated sheet 209 is folded at the fused portion 211, and the folded laminated sheet 209 is cleaned by forming the first deploying connecting portion 75 to the fifth deploying connecting portion 83 using an adhesive. Sheet 1 is formed.

The fusing portion 211 constitutes the fixing connecting portion 71. Further, the first nonwoven fabric 201 constitutes a second sheet portion 31 and a third sheet portion 51 with a fusion portion 211 (fixing connecting portion 71) sandwiched between them. The second non-woven fabric 203 constitutes the first sheet portion 21 and the fourth sheet portion 61 with the fusing portion 211 (fixing connecting portion 71) sandwiched between them. The base sheet 205 constitutes a base sheet first portion 13a and a base sheet second portion 13b with a fusion portion 211 (fixing connecting portion 71) sandwiched between them. The grip portion forming sheet 207 constitutes a grip portion forming sheet first portion 11a and a grip portion forming sheet second portion 11b with a fusion portion 211 (fixing connecting portion 71) sandwiched between them.

<< Second Embodiment >>
10 to 12 are views for explaining the cleaning sheet 1 according to another embodiment of the present disclosure (hereinafter, referred to as “second embodiment”). Specifically, FIG. 10 is a perspective view of the front, plane, and left side of the cleaning sheet 1 in the unfolded state. FIG. 11 is a left side view of the cleaning sheet 1 in the undeployed state, and corresponds to a left side view of the cleaning sheet 1 in the undeployed state according to the first embodiment. FIG. 12 is a perspective view of the front, plane, and left side of the cleaning sheet 1 in the undeployed state.

The cleaning sheet 1 according to the second embodiment, expanded in the deployment direction D _S, a cleaning sheet used attached to a handy cleaning tool 251 (see first embodiment). Further, the cleaning sheet 1 according to the second embodiment is a wet type cleaning sheet containing a chemical solution. The cleaning sheet 1 according to the second embodiment can form an undeployed state and an unfolded state. Specifically, a single cleaning sheet portion 19 in the unfolded state and a single cleaning sheet portion 19 in the undeployed state. It is possible to form the laminated structure 17 of the above. Further, the cleaning sheet 1 according to the second embodiment has a deployment angle of about 180 ° in the deployed state.

The cleaning sheet 1 (laminated structure 17) in the undeployed state and the cleaning sheet 1 (cleaning sheet portion 19) in the unfolded state are orthogonal to each other in the first direction D ₁ , the second direction D _2, and the thickness direction T, and and a deployment direction D _S. The first direction D ₁ , the second direction D _{2, the} thickness direction T, and the unfolding direction D _S in the cleaning sheet 1 (laminated structure 17) in the undeployed state and the cleaning sheet 1 (cleaning sheet portion 19) in the unfolded state are It is the same as that of the first embodiment.

In the cleaning sheet 1 according to the second embodiment, a total of 20 sheet portions of the base sheet first portion 13a, the first sheet portion 101 to the 18th sheet portion 135, and the base sheet second portion 13b are laminated in the undeployed state. It has a laminated structure 17. In FIG. 10, the second seat portion and the fourth seat portion are not shown due to the angle. Further, in FIG. 11, for simplification of the description, the first sheet portion 101, the second sheet portion 103 and the third sheet portion 105, and the 16th sheet portion 131, the 17th sheet portion 133 and the 18th sheet portion 135 are shown. Although it is shown, the 4th sheet portion to the 15th sheet portion 129 are omitted.
The first sheet portion 101 to the 18th sheet portion 135 are not folded back in the first direction D ₁ .

As shown in FIG. 12, each of the first sheet portion 101 to the 18th sheet portion 135 has an extension length L of the unfolded end portion 5 in a direction parallel to the fixing connecting portion 71 (first direction D ₁ ). ₁ and the length L ₂ of the fixed end portion 3 in the direction parallel to the fixing connecting portion 71 (first direction D ₁ ), and the extension length L ₁ of the unfolded end portion 5 is the fixed end portion. It is configured to be longer than the length L _{2 of} 3.
Further, each of the base sheet first portion 13a and the base sheet second portion 13b also has an extension length of the unfolded end portion 5 in a direction parallel to the fixing connecting portion 71 (first direction D ₁ ) (not shown). Is configured to be longer (not shown) than the length of the fixed end portion 3 in the direction parallel to the fixing connecting portion 71 (first direction D ₁ ).

The base sheet first portion 13a includes a grip portion forming sheet first portion 11a arranged on a surface opposite to the first sheet portion 101 to form the grip portion 91. Further, the base sheet second portion 13b includes a grip portion forming sheet second portion 11b arranged on a surface opposite to the 18th sheet portion 135 to form the grip portion 91.
In addition, the cleaning sheet 1 in the undeployed state has the base sheet first portion 13a and the base sheet second portion 13b first, rather than the plurality of sheet portions (that is, the first sheet portion 101 to the fourth sheet portion 107). It is provided with a pair of unfolding grip portions 85 formed by forming a long portion on the D ₁₂ side (grip portion 91 side) in the other direction. Since the pair of deploying grips 85 are separated by a predetermined distance d in the thickness direction T, it is easy for the user to grip the pair of deployable grips 85 and deploy the cleaning sheet 1.

The laminated structure 17 is connected at the unfolding end portion 5 by a unfolding connecting portion 73 formed of an adhesive.
In the cleaning sheet 1 according to the second embodiment, since the number of the plurality of sheet portions forming the laminated structure 17 is large, the cleaning sheet 1 includes n sheet portions (n) including the nth sheet portion by using the character formula. = 1 to 18), a base sheet first portion 13a, and a base sheet second portion 13b.

The unfolding connecting portion 73 includes an nth unfolding connecting portion (n = 1 to 17) that connects the nth sheet portion and the (n + 1) th sheet portion. In FIG. 11, for simplification of the description, the first unfolding connecting portion 141 that connects the first sheet portion 101 and the second sheet portion 103 is connected to the second sheet portion 103 and the third sheet portion 105. The second unfolding connecting portion 143, the third unfolding connecting portion 145 connecting the third seat portion 105 and the fourth seat portion (not shown), the fifteenth seat portion (not shown), and the 16th seat portion. The 15th deployment connecting portion 147 connecting the 131, the 16th deploying connecting portion 149 connecting the 16th sheet portion 131 and the 17th sheet portion 133, and the 17th sheet portion 133 and the 18th sheet portion 135 are connected. The 17th deployment connecting portion 151 is shown.

Further, the unfolding connecting portion 73 connects the 18th unfolding connecting portion 153 that connects the 18th sheet portion 135 and the base sheet second portion 13b, and the 19th that connects the base sheet first portion 13a and the first sheet portion 101. It is provided with a deployment connecting portion 155.

The nth deployment connecting portions (n = 1 to 19) are intermittently and repeatedly arranged in the first direction D ₁ at intervals of a predetermined distance L, and a plurality of nth deployment connecting portions (n = 1 to 19). (N = 1 to 19) is provided. Note that, in FIG. 11, for simplification of the description, only the first deployment connecting portion 141a to the third deployment connecting portion 145a and the fifteenth deployment connecting portion 147a to the nineteenth deployment connecting portion 155a are shown. There is.

Among the nth unfolding connecting portions (n = 1 to 18), those satisfying the requirement of n = 2k-1 (k = 1 to 9), a plurality of nth unfolding connecting portions are arranged in the thickness direction T. Arranged to match. Further, among the nth expansion connecting portions (n = 1 to 18), those satisfying the requirement of n = 2k (k = 1 to 9) and the 19th expansion connecting portion 155 have a plurality of nth expansions. The connecting portions (n = 1 to 19) are arranged so as to coincide with the thickness direction T.
Further, among the nth expansion connecting portions (n = 1 to 18), those satisfying the requirement of n = 2k-1 (k = 1 to 9) and the nth expansion connecting portion (n = 1 to 18). Of these, the one that satisfies the requirement of n = 2k (k = 1 to 9) and the 19th deployment connecting portion 155 are specifically set to the first direction D ₁ so as not to overlap in the thickness direction T. , 0.5 L apart.

Further, the cleaning sheet 1 starts from each of the plurality of nth unfolding connecting portions (n = 1 to 19) of the nth unfolding connecting portion (n = 1 to 19), and the unfolding end portion 5 to the central portion 7 It is provided with an nth auxiliary connecting portion (n = 1 to 19) passing through and ending at a fixed end portion 3. In FIG. 10, among the nth auxiliary connecting portions, the 16th auxiliary connecting portion 149b and the 18th auxiliary connecting portion 153b are shown.

As shown in FIG. 10, in the cleaning sheet 1 in the unfolded state, the nth sheet portion (n = 1 to 18) alternately reciprocates in the unfolding direction unidirectional _DS1 and the unfolding direction other direction D _S2 . It will have a reciprocating structure (n = 1 to 18). In FIG. 10, among the nth reciprocating structures (n = 1 to 18), the second reciprocating structure composed of the second sheet portion and the fourth reciprocating structure composed of the fourth sheet portion are shown in FIG. The structure is not shown.

In the cleaning sheet 1 according to the second embodiment, in the unfolded state, each of the nth sheet portions (n = 1 to 18) alternately reciprocates in the unfolding direction unidirectional _DS1 and the unfolding direction other direction D _S2. A structure (n = 1-18) can be formed.
Each of the first sheet portion 101 to the 18th sheet portion 135 is configured such that the extension length L ₁ of the unfolded end portion 5 is longer than the length L ₂ of the fixed end portion 3. Therefore, when the cleaning sheet 1 is deformed from the undeployed state to the unfolded state, the unfolded end portions 5 of the first sheet portion 101 to the 18th sheet portion 135 are in the direction parallel to the fixing connecting portion 71 (the first). The width can be entered in one direction D ₁ ) to increase the amplitude of the nth reciprocating structure (n = 1 to 18), and the wall surface constituting the nth reciprocating structure (n = 1 to 18) has a shape. The surface to be cleaned can be cleaned while flexibly changing.

Further, since the cleaning sheet 1 according to the second embodiment includes the nth auxiliary connecting portion (n = 1 to 19), the nth deploying connecting portion (n = 1 to 1 to 19) is accompanied by cleaning of the surface to be cleaned. Even when the plurality of nth expansion connecting portions (n = 1 to 19) of 19) are disconnected, the nth auxiliary connecting portion (n = 1 to 19) has an nth reciprocating structure (n = 1 to 19). It functions to maintain the shape of 18), and the cleaning sheet 1 can be excellent in cleanability.

Since the cleaning sheet 1 according to the second embodiment is the same as the cleaning sheet 1 according to the first embodiment except for other parts, the description thereof will be omitted.

<< Third Embodiment >>
13 to 15 are diagrams for explaining the cleaning sheet 1 according to another embodiment of the present disclosure (hereinafter, referred to as “third embodiment”). Specifically, FIG. 13 is a perspective view of the front, plane, and left side of the cleaning sheet 1 in the unfolded state. FIG. 14 is a perspective view of the front, plane, and left side of the cleaning sheet 1 in the undeployed state. FIG. 15 is a diagram showing a state in which the cleaning sheet 1 is attached to a single-sided cleaning type floor cleaning tool 351.

The cleaning sheet 1 according to the third embodiment, expanded in the deployment direction D _S, a cleaning sheet used attached to a floor cleaning tool 351. Further, the cleaning sheet 1 according to the third embodiment is a wet type cleaning sheet containing a chemical solution. The cleaning sheet 1 according to the third embodiment can form an undeployed state and an unfolded state. Specifically, a single cleaning sheet portion 19 in the unfolded state and a single cleaning sheet portion 19 in the undeployed state. It is possible to form the laminated structure 17 of the above. Further, the cleaning sheet 1 according to the third embodiment has a deployment angle of about 180 ° in the deployed state.

The cleaning sheet 1 (laminated structure 17) in the undeployed state includes a first direction D ₁ , a second direction D ₂ , a thickness direction T, and a unfolding direction D _S , which are orthogonal to each other. Undeployed cleaning in the state the seat 1 (laminate structure 17) the first direction D ₁ in the second direction D _2, the thickness direction T and the developing direction D _S, is similar to that shown in the first embodiment. The cleaning sheet 1 (cleaning sheet portion 19) in the unfolded state has a first direction D so that the cleaning sheet 1 (laminated structure 17) in the undeployed state and the base sheet second portion 301b, which will be described later, have the same direction. _{It has 1} , a second direction D _{2, a} thickness direction T, and a deployment direction D _S.

The cleaning sheet 1 in the non-deployed state has one laminated structure 17 in which a plurality of sheet portions are laminated in the thickness direction T. In the undeveloped state, the laminated structure 17 has a fixed end portion 3 and an unfolded end portion 5, and each of the fixed end portion 3 and the unfolded end portion 5 extends in a direction parallel to the first direction D ₁ . The fixed end portion 3 and the developed end portion 5 are arranged so as to be separated from each other in the second direction D ₂ with the central portion 7 in between.

Further, in the laminated structure 17, the plurality of sheet portions are, in order, in the thickness direction unidirectional T ₁ , the base sheet first portion 301a, the first sheet portion 303, the second sheet portion 305, and the third sheet portion 307. It is composed of a fourth sheet portion 309 and a base sheet second portion 301b. The base sheet first portion 301a and the base sheet second portion 301b are connected to a gripping sheet 311 for being gripped by the floor cleaning tool 351.

Each of the first sheet portion 303, the second sheet portion 305, the third sheet portion 307, and the fourth sheet portion 309 is composed of a spunlace non-woven fabric containing heat-sealing fibers and water-retaining fibers, and is a chemical solution. Includes. Further, the base sheet first portion 301a, the base sheet second portion 301b, and the gripping sheet 311 are made of a spunbonded non-woven fabric made of heat-sealing fibers.

The gripping sheet 311 is longer than the first sheet portion 303 to the fourth seat portion 309 in the second direction D ₂ , specifically, the second direction other direction D ₂₂ , and is configured to be longer than the first seat portion 303 to the fourth seat portion 309. A portion extending from the fourth seat portion 309 in the other direction D ₂₂ in the second direction constitutes a grip portion 313 gripped by the floor cleaning tool 351.

The first sheet portion 303 of the cleaning sheet 1 according to the third embodiment has a plurality of Ω structures having the same shape as the first sheet portion 21 of the cleaning sheet 1 according to the first embodiment, and the number of Ω structures is the same. There are more than the first sheet portion 21 in the cleaning sheet 1 according to one embodiment. Similarly, the second sheet portion 305, the third sheet portion 307, and the fourth sheet portion 309 of the cleaning sheet 1 according to the third embodiment are the second sheet portion 31 and the second sheet portion 31 of the cleaning sheet 1 according to the first embodiment, respectively. It has a plurality of Ω structures having the same shape as the 3 sheet portion 51 and the 4th sheet portion 61, and the number of Ω structures is the second sheet portion 31, the third sheet portion 51, and the cleaning sheet 1 according to the first embodiment. More than the fourth sheet portion 61. Further, in the first sheet portion 303, the extension length of the unfolded end portion 5 in the direction parallel to the fixing connecting portion 71 (first direction D ₁ ) is in the direction parallel to the fixing connecting portion 71 (first direction). It is longer than the length of the fixed end 3 in D ₁ ).

The laminated structure 17 includes a fixing connecting portion 71 formed by fusing the base sheet first portion 301a to the base sheet second portion 301b at the fixed end portion 3. The fixing connecting portion 71 extends in parallel with the first direction D ₁ and connects the base sheet first portion 301a to the base sheet second portion 301b.

The laminated structure 17 is connected at the unfolding end portion 5 by a unfolding connecting portion (not shown) composed of an adhesive. Since the unfolding connecting portion (not shown) in the cleaning sheet 1 according to the third embodiment is the same as the unfolding connecting portion 73 in the cleaning sheet 1 according to the first embodiment, the description thereof will be omitted.

Holding the holding portion 313 of the cleaning sheet 1 in the non-deployed state, the deployment direction D _S away the base sheet first portion 301a from the base sheet second portion 301b, and specifically to deploy in the deployment direction direction D _S1 When the base first sheet portion 303 which is connected to the seat first portion 301a, the second sheet portion 305, a third sheet portion 307, a fourth sheet portion 309, and the base sheet extending direction D _S second portion 301b is in the order , specifically developed in the deployment direction one direction D _S1.

Next, in the cleaning sheet 1 in the unfolded state, the first sheet portion 303 becomes the unfolded end portion 5 of the first sheet portion 303 in the first direction one direction D ₁₁ (first direction other direction D ₁₂ ) due to the above unfolding. Has a first reciprocating structure 315 that alternately reciprocates in the deployment direction unidirectional _DS1 and the deployment direction other direction D _S2 .

Similarly, in the cleaning sheet 1 in the deployed state, the second sheet portion 305, the third sheet portion 307, and the fourth sheet portion 309 are respectively in the first direction unidirectional D ₁₁ (first direction other direction D ₁₂ ). the second sheet portion 305, expanded end portion 5 of the third sheet portion 307 and the fourth sheet portion 309 is reciprocally alternating in the development direction one direction D _S1 and developing direction other direction D _S2, the second reciprocating structure 317, the It has a three-reciprocating structure 319 and a fourth reciprocating structure 321.
Further, in each of the second seat portion 305, the third seat portion 307, and the fourth seat portion 309, the extension length of the unfolded end portion 5 in the direction parallel to the fixing connecting portion 71 (first direction D ₁ ) is , It is longer than the length of the fixed end portion 3 in the direction parallel to the fixing connecting portion 71 (first direction D ₁ ).

The cleaning sheet 1 is used, for example, by fixing the grip portion 313 to the slit portion 353 of the floor cleaning tool 351.
When the floor cleaning tool 351 provided with the cleaning sheet 1 is arranged on the surface to be cleaned so that the cleaning sheet 1 faces the surface to be cleaned (for example, the floor, etc.), the cleaning sheet 1 is placed on the floor cleaning tool 351 by its own weight, etc. The first reciprocating structure 315 to the fourth reciprocating structure 321 are irregularly deformed to expose the first region of the first sheet portion 303 to the fourth sheet portion 309, and the first region is exposed. The first area can clean the surface to be cleaned by contacting the surface to be cleaned. Further, the first reciprocating structure 315 to the fourth reciprocating structure 321 can be irregularly deformed to form an irregular step on the cleaning sheet 1, and the irregular step improves the cleanability of the surface to be cleaned. Excellent.

When the floor cleaning tool 351 is lifted and the cleaning sheet 1 is separated from the surface to be cleaned, the first reciprocating structure 315 to the fourth reciprocating structure 321 return to their original shapes due to their shape recovery, and then the cleaning sheet 1 Is pressed against the surface to be cleaned again, the first reciprocating structure 315 to the fourth reciprocating structure 321 are irregularly deformed to expose a second region different from the first region, and the second region comes into contact with the surface to be cleaned. , The second area can clean the surface to be cleaned.
Since the cleaning sheet 1 according to the third embodiment is the same as the cleaning sheet 1 according to the first embodiment except for the other parts, the description thereof will be omitted.

<< Fourth Embodiment >>
16 to 19 are diagrams for explaining the cleaning sheet 1 according to another embodiment of the present disclosure (hereinafter, referred to as “fourth embodiment”). Specifically, FIG. 16 is a perspective view of the front, plane, and left side of the cleaning sheet 1 in the unfolded state. FIG. 17 is a perspective view of the front, plane, and left side of the cleaning sheet 1 in the undeployed state. FIG. 18 is a left side view of the first laminated structure 401. FIG. 19 is a diagram showing a state in which the cleaning sheet 1 is attached to the double-sided cleaning type floor cleaning tool 481.

The cleaning sheet 1 according to the fourth embodiment, expanded in the deployment direction D _S, a cleaning sheet used attached to a floor cleaning tool 481. Further, the cleaning sheet 1 according to the fourth embodiment is a wet type cleaning sheet containing a chemical solution. Further, in the cleaning sheet 1 according to the fourth embodiment, each of the first laminated structure 401 and the second laminated structure 403 has a deployment angle of about 180 °.

The cleaning sheet 1 (first laminated structure 401 and second laminated structure 403) in the undeployed state has the first direction D ₁ , the second direction D ₂ , the thickness direction T, and the unfolding direction D _S orthogonal to each other. , Commonly prepared. The first direction D ₁ , the second direction D ₂ , the thickness direction T, and the unfolding direction D _S in the cleaning sheet 1 (first laminated structure 401 and second laminated structure 403) in the undeployed state are the same as those in the first embodiment. Similar to what is shown.

The cleaning sheet 1 (first cleaning sheet portion 415 and second cleaning sheet portion 417) in the unfolded state includes the cleaning sheet 1 (first laminated structure 401 and second laminated structure 403) in the undeployed state and the base sheet described later. as the second portion 405b and the base sheet fourth portion 421b have the same direction, the first direction D _1, the second direction D ₂ and the thickness direction T, and has a deployment direction D _S.

The cleaning sheet 1 in the undeveloped state has two laminated structures (that is, a first laminated structure 401 and a second laminated structure 403) in which a plurality of sheet portions are laminated in the thickness direction T. The first laminated structure 401 and the second laminated structure 403 are laminated in the thickness direction T.
The first laminated structure 401 and the second laminated structure 403 constitute the first cleaning sheet portion 415 and the second cleaning sheet portion 417, respectively, in the cleaning sheet 1 in the unfolded state.

In the first laminated structure 401, a plurality of sheet portions in the thickness direction direction T _1, in order, the base sheet first portion 405a, the first sheet portion 407, the second sheet portion 409, and the base sheet second portion It is composed of 405b. The base sheet first portion 405a and the base sheet second portion 405b are connected to a gripping sheet 411 for being gripped by the floor cleaning tool 481.

In the second laminated structure 403, the plurality of sheet portions are, in order, in the thickness direction unidirectional T ₁ , the base sheet third portion 421a, the third sheet portion 423, the fourth sheet portion 425, and the base sheet fourth portion. It is composed of 421b. The base sheet third portion 421a and the base sheet fourth portion 421b are connected to a gripping sheet 411 for being gripped by the floor cleaning tool 481.

In the undeployed state, the first laminated structure 401 has a first fixed end portion 427 and a first unfolded end portion 429, and each of the first fixed end portion 427 and the first unfolded end portion 429 has a first direction D. The first fixed end portion 427 and the first unfolded end portion 429 extend in parallel with ₁ and are arranged apart from each other in the second direction D ₂ with the first central portion 431 in between.

Further, in the undeployed state, the second laminated structure 403 has a second fixed end portion 435 and a second unfolded end portion 437, and each of the second fixed end portion 435 and the second unfolded end portion 437 is the first. The second fixed end 435 and the second unfolded end 437 extend in a direction parallel to the direction D _1, and are arranged apart from each other in the second direction D ₂ with the second central portion 439 in between. There is.

In the first laminated structure 401, each of the first sheet portion 407 and the second sheet portion 409 is composed of a spunlace non-woven fabric containing heat-sealing fibers and water-retaining fibers, and contains a chemical solution. Further, the base sheet first portion 405a, the base sheet second portion 405b, and the gripping sheet 411 are made of a spunbonded non-woven fabric made of heat-sealing fibers.

In the second laminated structure 403, each of the third sheet portion 423 and the fourth sheet portion 425 is composed of a spunlace non-woven fabric containing heat-sealing fibers and water-retaining fibers, and contains a chemical solution. Further, the base sheet third portion 421a and the base sheet fourth portion 421b are made of a spunbonded non-woven fabric made of heat-sealing fibers.

In the first laminated structure 401, the first sheet portion 407 has the same shape as the first sheet portion 21 in the cleaning sheet 1 according to the first embodiment, but has a different number of protrusions in one direction T ₁ in the thickness direction. It has a plurality of Ω ₁ structures and a plurality of Ω ₂ structures protruding in the other direction T ₂ in the thickness direction. Specifically, the first sheet portion 407 has seven first Ω ₁ structures 445 protruding in one direction T ₁ in the thickness direction and eight first Ω ₂ projects protruding in the other direction T ₂ in the thickness direction. It has a structure 447, seven first Ω ₁ structures 445 are continuous in the first direction D ₁ , and eight first Ω ₂ structures 447 are continuous in the first direction D ₁ . ..
Further, in the first sheet portion 407, the extension length of the unfolded end portion (not shown) in the direction parallel to the first fixing connecting portion 441 described later (first direction D ₁ ) is the first fixing connecting portion. It is longer than the length of the fixed end portion (not shown) in the direction parallel to the portion 441 (first direction D ₁ ).

Similarly, in the first laminated structure 401, the second sheet portion 409 has the same shape as the fourth sheet portion 61 in the cleaning sheet 1 according to the first embodiment, but has a different number in one direction T ₁ in the thickness direction. It has a plurality of Ω ₁ structures protruding and a plurality of Ω ₂ structures protruding in the other direction T ₂ in the thickness direction. Specifically, the second sheet portion 409 has eight second Ω ₁ structures 449 protruding in one direction T ₁ in the thickness direction and seven second Ω ₂ protruding in the other direction T ₂ in the thickness direction. It has a structure 451 and eight second Ω ₁ structures 449 are continuous in the first direction D ₁ , and seven second Ω ₂ structures 451 are continuous in the first direction D ₁ . ..
Further, in the second sheet portion 409, the extension length of the unfolded end portion (not shown) in the direction parallel to the first fixing connecting portion 441 (first direction D ₁ ) is the first fixing connecting portion 441. It is longer than the length of the fixed end (not shown) in the direction parallel to (first direction D ₁ ).

The first laminated structure 401 has a first fixing connecting portion 441 formed by fusing the base sheet first portion 405a to the base sheet second portion 405b at the first fixed end portion 427. I have. The first fixing connecting portion 441 extends in parallel with the first direction D ₁ and connects the base sheet first portion 405a to the base sheet second portion 405b.

The first laminated structure 401 is connected at the first unfolding end portion 429 by a unfolding connecting portion 453 composed of an adhesive. Specifically, the unfolding connecting portion 453 is composed of a first unfolding connecting portion 455, a second unfolding connecting portion 457, and a third unfolding connecting portion 459. The first unfolding connecting portion 455 is located at the center of each of the eight first Ω ₂ structures 447 of the first sheet portion 407 (unsigned), and at the eighth of the second sheet portion 409. It is arranged in the center of each top surface (unsigned) of the 2Ω ₁ structure 449, and the first sheet portion 407 and the second sheet portion 409 are partially connected.

Further, the second unfolding connecting portion 457 is arranged at the center of each top surface (unsigned) of the seven second Ω ₂ structures 451 of the second sheet portion 409, and the second sheet portion. The 409 and the second portion 405b of the base sheet are partially connected. Further, the third deployment connecting portion 459 is arranged in the center of each top surface (unsigned) of the seven first Ω ₁ structures 445 of the first sheet portion 407, and the first sheet portion. The 407 and the first portion 405a of the base sheet are partially connected.

The second laminated structure 403 includes a second fixing connecting portion 443 and a developing connecting portion (not marked). The second fixing connecting portion 443 and the expanding connecting portion (not marked) in the second laminated structure 403 are the first fixing connecting portion 441 and the expanding connecting portion 453 in the first laminated structure 401, respectively. Since the same is true, the description thereof will be omitted.

Holding the holding portion 413 of the cleaning sheet 1 in the non-deployed state, when deployed in the deployment direction D _S, the first laminated structure 401 and the second layered structure 403 is deployed in the deployment direction D _S.

In the cleaning sheet 1 in the unfolded state, the first unfolded end portion 429 of the first sheet portion 407 and the first unfolded end portion 429 of the second sheet portion 409 are respectively in the first direction and one direction D ₁₁ (first direction). In the other direction D ₁₂ ), it has a first reciprocating structure 461 and a second reciprocating structure 463 that alternately reciprocate in the deployment direction unidirectional _DS1 and the deployment direction other direction D _S2 . Further, the second unfolded end portion 437 of the third sheet portion 423 and the second unfolded end portion 437 of the fourth sheet portion 425 are respectively in the first direction one direction D ₁₁ (first direction other direction D ₁₂ ). It has reciprocally alternating in the development direction one direction D _S1 and developing direction other direction D _S2, a third reciprocating structure 465, and a fourth reciprocating structure 467.

The cleaning sheet 1 is, for example, cleaned on a double-sided cleaning type floor cleaning tool 481 so that each of the first cleaning sheet portion 415 and the second cleaning sheet portion 417 corresponds to the cleaning surface of the floor cleaning tool 481. It is used by attaching the grip portion 413 of the seat 1 to the attachment portion (not shown) of the floor cleaning tool.
Examples of the double-sided cleaning type floor cleaning tool 481 include those described in JP-A-1997-164110, Utility Model Registration No. 3152632, and the like.
Since the cleaning sheet 1 according to the fourth embodiment is the same as the cleaning sheet 1 according to the first embodiment and the third embodiment except for the parts, the description thereof will be omitted.

<< Fifth Embodiment >>
20 to 22 are views for explaining the cleaning sheet 1 according to another embodiment of the present disclosure (hereinafter, referred to as “fifth embodiment”). Specifically, FIG. 20 is a perspective view of the front, plane, and left side of the cleaning sheet 1 in the deployed state, which is attached to the handy cleaning tool 551. FIG. 21 is a perspective view of the front, plane, and left side of the cleaning sheet 1 in the undeployed state. FIG. 22 is a perspective view of a handy cleaning tool 551 for the cleaning sheet 1.

The cleaning sheet 1 according to the fifth embodiment, to expand the deployment direction D _S, a cleaning sheet used attached to a handy cleaning tool 251 (see first embodiment). Further, the cleaning sheet 1 according to the fifth embodiment is a wet type cleaning sheet containing a chemical solution. The cleaning sheet 1 according to the fifth embodiment can form an undeployed state and an unfolded state. Specifically, a single cleaning sheet portion 19 in the unfolded state and a single cleaning sheet portion 19 in the undeployed state. It is possible to form the laminated structure 17 of the above. Further, in the cleaning sheet 1 according to the fifth embodiment, the single laminated structure 17 has a deployment angle of about 360 °.

The cleaning sheet 1 (laminated structure 17) in the undeployed state and the cleaning sheet 1 (cleaning sheet portion 19) in the unfolded state are orthogonal to each other in the first direction D ₁ , the second direction D ₂ , the thickness direction T, and and a deployment direction D _S. The first direction D ₁ , the second direction D ₂ , the thickness direction T, and the unfolding direction D _S in the cleaning sheet 1 (laminated structure 17) in the undeployed state and the cleaning sheet 1 (cleaning sheet portion 19) in the unfolded state are It is the same as that shown in the first embodiment.

The cleaning sheet 1 according to the fifth embodiment has the base sheet first portion 13a, the first sheet portion 501, the second sheet portion 503, the third sheet portion 505, the fourth sheet portion 507, and the fifth sheet portion in the undeployed state. Laminated structure 17 in which 509, the sixth sheet portion 511, the seventh sheet portion 513, the eighth sheet portion 515, the ninth sheet portion 517, the tenth sheet portion 519, and the base sheet second portion 13b are laminated in that order. have.

Each of the first sheet portion 501 to the tenth sheet portion 519 has a plurality of Ω ₁ structures (similar to the second sheet portion 31 of the cleaning sheet 1 in the first embodiment) protruding in one direction T ₁ in the thickness direction. It has a plurality of Ω ₂ structures (unsigned) protruding in the other direction T ₂ in the thickness direction (unsigned), and each of the plurality of Ω ₁ structures and a plurality of Ω ₁ structures. Although the directions are opposite to each of the Ω ₂ structures, they have the same shape and are alternately arranged in the first direction D ₁ .

Similar to the cleaning sheet 1 in the first embodiment, the first sheet portion 501 to the tenth sheet portion 519 have substantially the center of the top surface of the Ω ₁ structure of the adjacent sheet portion (center of the first direction D ₁ ). Approximately the center of the top surface of the Ω ₂ structure (the center of the first direction D ₁ ) is joined by a plurality of unfolding connecting portions (not marked). Further, the substantially center of the top surface of the Ω ₁ structure of the first sheet portion 501 (the center of the first direction D ₁ ) and the first portion 13a of the base sheet are a plurality of unfolding connecting portions (not marked). ) Is joined. Further, the substantially center of the top surface of the Ω ₂ structure of the tenth sheet portion 519 (the center of the first direction D ₁ ) and the second portion 13b of the base sheet are a plurality of unfolding connecting portions (not marked). ) Is joined.

Further, in each of the first sheet portion 501 to the tenth sheet portion 519, in the direction parallel to the fixing connecting portion (not shown) (first direction D ₁ ) as in the cleaning sheet 1 according to the first embodiment. , The extension length of the unfolded end (not shown) is longer than the length of the fixed end (not shown) in the direction parallel to the fixing connecting part (not shown) (first direction D ₁ ). It is configured to be.

As shown in FIG. 21, the cleaning sheet 1 in the undeployed state has the base sheet first portion 13a and the base sheet second portion 13b, and a plurality of sheet portions (that is, the first sheet portion 501 to the tenth sheet portion 519). ) than, formed by long structure in a first direction other direction D ₁₂ side (the grip portion 521 side), and a gripping portion 85 pair of deployment. Since the pair of deploying grips 85 are separated by a predetermined distance d in the thickness direction T, it is easy for the user to grip the pair of deployable grips 85 and deploy the cleaning sheet 1.

The base sheet first portion 13a and the base sheet second portion 13b are respectively arranged on the surfaces opposite to the first sheet portion 501 to the tenth sheet portion 519, respectively, and the grip portion 521a (grip portion 521). To form a grip portion 521b (grip portion 521) arranged on a surface opposite to the first sheet portion 11a for forming the grip portion and the first sheet portion 501 to the tenth sheet portion 519. The second portion 11b of the grip portion forming sheet is provided. The base sheet first portion 13a and the grip portion forming sheet first portion 11a, and the base sheet second portion 13b and the grip portion forming sheet second portion 11b, respectively, for gripping the handy cleaning tool 551. The fusing portion 15 for the grip portion is formed so as to form the grip portion 521a and the grip portion 521b.

The handy cleaning tool 551 includes an arm portion 553, a pair of cleaning sheet mounting portions 555a and a cleaning sheet mounting portion 555b connected to the arm portion 553. Each of the cleaning sheet mounting portion 555a and the cleaning sheet mounting portion 555b has a plate shape, and the plate shape of the cleaning sheet mounting portion 555a and the plate shape of the cleaning sheet mounting portion 555b are separated by a predetermined distance e. They are arranged in parallel directions.

The cleaning sheet 1, and a deployed state from a non-deployed state, in order to use grips the pair of deployment gripper 85, the cleaning sheet 1 in the deployment direction D _S, as deployment angle of about 360 ° By unfolding and inserting the cleaning sheet mounting portion 555a and the cleaning sheet mounting portion 555b of the handy cleaning tool 551 into the gripping portion 521a and the gripping portion 521b of the cleaning sheet 1, respectively, the cleaning sheet 1 is inserted into the handy cleaning tool 551. Fixed to.

The cleaning sheet 1 according to the fifth embodiment, no directionality in the deployment direction D _S, can be cleaned.
Since the cleaning sheet 1 according to the fifth embodiment is the same as the cleaning sheet 1 according to the first embodiment in other parts, the description thereof will be omitted.

<< 6th Embodiment >>
23 to 26 are views for explaining the cleaning sheet 1 according to another embodiment of the present disclosure (hereinafter, referred to as “sixth embodiment”). Specifically, FIG. 23 is a perspective view of the front, plane, and left side of the cleaning sheet 1 in the unfolded state. FIG. 24 is a perspective view of the back surface, the bottom surface, and the left side surface of the cleaning sheet 1 in the unfolded state. FIG. 25 is a perspective view of the front, plane, and left side of the cleaning sheet 1 in the undeployed state. FIG. 26 is a diagram for explaining a method of manufacturing the cleaning sheet 1.

The cleaning sheet 1 according to the sixth embodiment is a cleaning sheet used by being attached to a handy cleaning tool (see the first embodiment). Further, the cleaning sheet 1 according to the sixth embodiment is a wet type cleaning sheet containing a chemical solution. The cleaning sheet 1 according to the sixth embodiment can form an undeployed state and an unfolded state. Specifically, a single cleaning sheet portion 19 in the unfolded state and a single cleaning sheet portion 19 in the undeployed state. It is possible to form the laminated structure 17 of the above. Further, in the cleaning sheet 1 according to the sixth embodiment, the laminated structure 17 has a deployment angle of about 180 °.

The cleaning sheet 1 (laminated structure 17) in the undeployed state includes a first direction D ₁ , a second direction D ₂ , a thickness direction T, and a unfolding direction D _S , which are orthogonal to each other. The first direction D ₁ , the second direction D ₂ , the thickness direction T, and the unfolding direction D _S in the cleaning sheet 1 (laminated structure 17) in the undeployed state are the same as those shown in the first embodiment. .. The cleaning sheet 1 (cleaning sheet portion 19) in the unfolded state has a first direction D so that the cleaning sheet 1 (laminated structure 17) in the undeployed state and the base sheet second portion 601b, which will be described later, have the same direction. _{It has 1} , a second direction D _{2, a} thickness direction T, and a deployment direction D _S.

In the undeployed state, the laminated structure 17 has a fixed end portion 3 and an unfolded end portion 5, each of the fixed end portion 3 and the unfolded end portion 5 extending in parallel with the first direction D ₁ , and the fixed ends. The portion 3 and the unfolded end portion 5 are arranged apart from each other in the second direction D ₂ with the central portion 7 in between.

The cleaning sheet 1 in the non-deployed state (multilayer structure 17, see Figure 25), the base sheet first portion 601a, by expanding the deployment direction D _S away from the base sheet second portion 601b, in the deployed state The cleaning sheet 1 (cleaning sheet portion 19, see FIG. 23) is formed, and the cleaning sheet 1 in the deployed state is used for cleaning the surface to be cleaned. In other words, the cleaning sheet 1 (the cleaning sheet portion 19) in the deployed state can be formed by folding the deployment direction D _S, the cleaning sheet 1 (laminate structure 17) in the non-deployed state.

The cleaning sheet 1 includes a base sheet 601 and a plurality of sheets, that is, a first sheet portion 603, a second sheet portion 605, a third sheet portion 607, a fourth sheet portion 609, a fifth sheet portion 611, and a sixth sheet portion. It includes nine sheets including 613, a seventh sheet portion 615, an eighth sheet portion 617, and a ninth sheet portion 619.
The base sheet 601, the cleaning sheet 1 (the cleaning sheet portion 19) in the deployed state, the fixing connection part 641 extending in a first direction D ₁ at the center of the deployment direction D _S, and the base sheet first portion 601a, It is partitioned into the second portion 601b of the base sheet.

As shown in FIG. 25, in the cleaning sheet 1 (laminated structure 17) in the undeployed state, a plurality of sheets, that is, nine sheets including the first sheet portion 603 to the ninth sheet portion 619 are in the thickness direction. It is arranged between the base sheet first portion 601a and the base sheet second portion 601b arranged at both ends of the T, and is arranged in the first direction and the other direction D ₁₂ in that order at a predetermined pitch P. Has been done. Since each of the first sheet portion 603 to the ninth sheet portion 619 has substantially the same length as the predetermined pitch P in the first direction D ₁ , the interval between the first sheet portion 603 to the ninth sheet portion 619 Is approximately 0.

The base sheet 601 includes a grip portion forming sheet 207 for forming the grip portion 91, which is arranged on a surface opposite to the first sheet portion 603 to the ninth seat portion 619. Specifically, the grip portion forming sheet 207, the fixing connection portion 641 extending in parallel to the first direction D ₁ at the center of the deployment direction D _S, and the gripping portion forming sheet first portion 11a, the grip portion formed It is divided into a second sheet portion 11b, and the base sheet first portion 601a and the base sheet second portion 601b are arranged on the surfaces opposite to the first sheet portion 603 to the ninth sheet portion 619, respectively. To form the grip portion 91 arranged on the surface opposite to the first seat portion 11a for forming the grip portion 91 and the first seat portion 603 to the ninth seat portion 619. The second portion 11b of the seat for forming the grip portion of the above is provided.

The base sheet first portion 601a and the grip portion forming sheet first portion 11a, and the base sheet second portion 601b and the grip portion forming sheet second portion 11b are provided with a handy cleaning tool (the first embodiment is used. The fusing portion 15 for the grip portion is formed so as to form the grip portion 91 for gripping the cleaning sheet mounting portion (see). Since the grip portion fusion unit 15 is the same as the grip portion fusion unit 15 shown in the first embodiment, the description thereof will be omitted.

Each of the grip portion forming sheet 207 and the first sheet portion 603 to the ninth sheet portion 619 is composed of a spunlace non-woven fabric containing heat-sealing fibers and water-retaining fibers, and contains a chemical solution. .. Further, the base sheet 601 is made of a spunbonded non-woven fabric made of heat-sealing fibers.

The cleaning sheet 1 (laminated structure 17) in the non-deployed state has, at the fixed end portion 3, the grip portion forming sheet first portion 11a, the base sheet first portion 601a, the first sheet portion 603 to the ninth sheet portion 619, and the base. A fixing connecting portion 641 composed of a fused portion formed by fusing the seat second portion 601b and the grip portion forming sheet second portion 11b is provided.

Fixing connection part 641, in the first direction other direction D _12, first securing coupling portion 643, the second fixing coupling portion 645, the third securing coupling portion 647, the fourth fixing coupling portion 649, the fifth It is divided into a fixing connecting portion 651, a sixth fixing connecting portion 653, a seventh fixing connecting portion 655, an eighth fixing connecting portion 657, and a ninth fixing connecting portion 659.

The first fixing connecting portion 643 melts the grip portion forming sheet first portion 11a, the base sheet first portion 601a, the first sheet portion 603, the base sheet second portion 601b, and the grip portion forming sheet second portion 11b. It is formed by wearing it. The second fixing connecting portion 645 melts the grip portion forming sheet first portion 11a, the base sheet first portion 601a, the second sheet portion 605, the base sheet second portion 601b, and the grip portion forming sheet second portion 11b. It is formed by wearing it. Similarly, the third fixing connecting portion 647 to the eighth fixing connecting portion 657 are the grip portion forming sheet first portion 11a, the base sheet first portion 601a, and the third sheet portion 607 to the eighth sheet portion 617, respectively. , The base sheet second portion 601b and the grip portion forming sheet second portion 11b are fused to form the base sheet. The ninth fixing connecting portion 659 is formed by fusing the base sheet first portion 601a, the ninth sheet portion 619, and the base sheet second portion 601b.

Since it is difficult to understand the cleaning sheet 1 (laminated structure 17) in the undeployed state, the first sheet portion 603 will be described with reference to the cleaning sheet 1 (cleaning sheet portion 19) in the unfolded state shown in FIG. The folded portion (not marked) of ₁₁ has a first bellows structure 621 that is alternately folded back in the first direction unidirectional D ₁₁ and the first direction other direction D ₁₂ . More specifically, the first sheet portion 603 in the extending direction other direction D _S2, the first direction other direction D _12, then, are folded at folded portions of the alternating meter 11 in the first direction one-way D ₁₁ It has a first bellows structure 621.
The folded portion (not marked) of 11 extends in the second direction D ₂ in the cleaning sheet 1 (laminated structure 17) in the unfolded state, and the cleaning sheet (cleaning sheet portion) in the unfolded state. In 19), it extends in a direction orthogonal to the first direction D ₁ .

The first sheet portion 603 is divided into the nth region (n = 1 to 12) of the first sheet portion by 11 folded portions (not marked), and both ends constituting the first bellows structure 621. It has a first sheet portion first region 603a and a first sheet portion 12th region 603b. The nth region (n = 1 to 12) of the first sheet portion is laminated in the thickness direction T in that order.
The first sheet portion first region 603a and the first sheet portion 12th region 603b correspond to one first end region 665 and the other first end region 667, respectively, which will be described later.

Each of the first sheet portion first region 603a and the first sheet portion 12th region 603b is connected to the base sheet 601. Specifically, the first sheet portion 1st region 603a and the first sheet portion 12th region 603b are connected to the base sheet first portion 601a and the base sheet second portion 601b, respectively.
The first sheet portion first region 603a, the first sheet portion 12th region 603b, and the first fixing connecting portion 643 of the fixing connecting portion 641 form a first fixed end portion 661, which will be described later. There is.

The second sheet portion 605 has a second bellows structure 623 that is alternately folded back in the first direction unidirectional D ₁₁ and the first direction other direction D ₁₂ by the folded-back portion (not marked) of _11. Have. Like the first sheet portion 603, the second sheet portion 605 is divided into the second sheet portion nth region (n = 1 to 12) by the folded-back portion (not marked) of 11 and is divided into the second sheet portion nth region (n = 1 to 12). It has a second sheet portion first region 605a and a second sheet portion 12th region 605b at both ends constituting the second bellows structure 623. The nth region (n = 1 to 12) of the second sheet portion is laminated in the thickness direction T in that order.
The second sheet portion first region 605a and the second sheet portion 12th region 605b correspond to one second end region 673 and the other second end region 675, respectively, which will be described later.

Each of the second sheet portion first region 605a and the second sheet portion 12th region 605b is connected to the base sheet 601. Specifically, the second sheet portion first region 605a and the second sheet portion 12th region 605b are connected to the base sheet first portion 601a and the base sheet second portion 601b, respectively.
The second sheet portion 1st region 605a and the second sheet portion 12th region 605b and the second fixing connecting portion 645 of the fixing connecting portion 641 form a second fixed end portion 669, which will be described later. There is.

The third sheet portion 607 to the ninth sheet portion 619 have a third bellows structure 625 to a ninth bellows structure 637, similarly to the first sheet portion 603. A detailed description of the third sheet portion 607 to the ninth sheet portion 619 will be omitted.

In the cleaning sheet 1 in the unfolded state, each of the first sheet portion 603 to the ninth sheet portion 619, along with and extends in a direction parallel to the extending direction D _S as a whole (which is deployed in the deployment direction D _S), The first sheet portion 603 to the ninth sheet portion 619 are arranged in the first direction D ₁ at a predetermined pitch P in that order. Since each of the first sheet portion 603 to the ninth sheet portion 619 has substantially the same length as the predetermined pitch P in the first direction D ₁ , the interval between the first sheet portion 603 to the ninth sheet portion 619 Is approximately 0.

In the cleaning sheet 1 in the unfolded state, the first sheet portion 603 has a first fixed end portion 661 which extends in a direction parallel to the extending direction D _S as a whole, it extends in the second direction D ₂ parallel to direction , A first unfolded end 663 and the like. The first sheet portion 603 also has one first end region 665 arranged on the deployment direction unidirectional _DS1 side and the other first end region 667 arranged on the deployment direction other direction _DS2 side. And have.

As described above, the first fixed end portion 661 is composed of a first sheet portion first region 603a, a first sheet portion 12th region 603b, and a first fixing connecting portion 643 of the fixing connecting portion 641. Further, one first end region 665 and the other first end region 667 are composed of a first sheet portion first region 603a and a first sheet portion twelfth region 603b, respectively.

In the cleaning sheet 1 in the unfolded state, the second sheet portion 605 includes a second fixed end portion 669 and a second unfolded end portion 671 and is provided in one direction D in the unfolding direction, similarly to the first sheet portion 603. _{It has} one second end region 673 arranged on the _S1 side and the other second end region 675 arranged on the development direction other direction _DS2 side.

As described above, the second fixed end portion 669 is composed of the second seat portion first region 605a and the second seat portion 12th region 605b, and the second fixing connecting portion 645 of the fixing connecting portion 641. Further, one second end region 673 and the other second end region 675 are composed of a second sheet portion first region 605a and a second sheet portion 12th region 605b, respectively.
Since the third sheet portion 607 to the ninth sheet portion 619 are the same as the first sheet portion 603 and the second sheet portion 605, the description thereof will be omitted.

As shown in FIG. 25, the cleaning sheet 1 in the undeployed state is a base sheet 601 (base sheet first portion 601a and base sheet second portion 601b) from a plurality of sheets (particularly, the ninth sheet portion 619). Also includes a pair of unfolding grips 85 formed by being elongated on the D ₁₂ side in the first direction and the other direction. Since the pair of deployment grip portions 85 is the same as the pair of deployment grip portions 85 shown in the first embodiment, the description thereof will be omitted.

The cleaning sheet 1 according to the sixth embodiment is not particularly limited, and can be manufactured as shown in FIG. 26, for example.
The base sheet 601 to which the gripping portion forming sheet 207 is fused, the first sheet portion laminate 701 constituting the first sheet portion 603, the second sheet portion laminate 703 constituting the second sheet portion 605, Laminated body 705 for the third sheet portion constituting the third sheet portion 607, laminated body 707 for the fourth sheet portion constituting the fourth sheet portion 609, and laminated body 709 for the fifth sheet portion constituting the fifth sheet portion 611. , 6th sheet portion laminate 711 constituting the 6th sheet portion 613, 7th sheet portion laminate 713 constituting the 7th sheet portion 615, 8th sheet portion laminate constituting the 8th sheet portion 617 The 9th sheet portion laminates 717 constituting the 715 and the 9th sheet portion 619 are arranged in that order in the first direction D ₁ at a predetermined pitch P.

A _first that extends the grip portion forming sheet 207, the base sheet 601 and the first sheet portion laminate 701 to the ninth sheet portion laminate 717 through the center of the second direction D ₂ in the first direction D ₁ . The fusion sheet 719 is formed by fusing along the direction center line CL ₁ to form the fixing connecting portion 641. Next, the hot melt adhesive 721 is applied to the end portions (not marked) of the fused sheet 719 that form each of the first sheet portion laminate 701 to the ninth sheet portion laminate 717. Then, the fusion sheet 719 is folded at the fixing connecting portion 641, and each hot melt adhesive 721 of the first sheet portion laminate 701 to the ninth sheet portion laminate 717 is coated. The cleaning sheet 1 is formed by adhering the formed portions to each other.

The cleaning sheet 1 according to the sixth embodiment is excellent in cleanability of the surface to be cleaned. Further, the cleaning sheet 1 according to the sixth embodiment can be in a deployed state and a non-deployed state, and is excellent in compactness.

<< 7th Embodiment >>
27 and 28 are diagrams for explaining the cleaning sheet 1 according to another embodiment of the present disclosure (hereinafter, referred to as “7th embodiment”). Specifically, FIG. 27 is a perspective view of the front, plane, and left side of the cleaning sheet 1 in the unfolded state. FIG. 28 is a perspective view of the front, plane, and left side of the cleaning sheet 1 in the undeployed state.

The cleaning sheet 1 according to the seventh embodiment is a cleaning sheet used by being attached to a handy cleaning tool (see the first embodiment). Further, the cleaning sheet 1 according to the seventh embodiment is a wet type cleaning sheet containing a chemical solution. The cleaning sheet 1 can form an undeployed state and an unfolded state. Specifically, a single cleaning sheet portion 19 in the unfolded state and a single laminated structure 17 in the undeployed state. Can be formed. Further, in the cleaning sheet 1 according to the seventh embodiment, the laminated structure 17 has a deployment angle of about 180 °.

The cleaning sheet 1 (laminated structure 17) in the undeployed state includes a first direction D ₁ , a second direction D _{2, a} thickness direction T, and a unfolding direction D _S , which are orthogonal to each other. The cleaning sheet 1 first direction in the (multilayer structure 17) D ₁ in the undeployed condition, the second direction D ₂ and the thickness direction T, and the deployment direction D _S is the same as in the first embodiment. The cleaning sheet 1 (cleaning sheet portion 19) in the unfolded state has a first direction D so that the cleaning sheet 1 (laminated structure 17) in the undeployed state and the base sheet second portion 801b, which will be described later, have the same direction. _{It has 1} , a second direction D _{2, a} thickness direction T, and a deployment direction D _S.

In the undeveloped state, the laminated structure 17 has a fixed end portion 3 and an unfolded end portion 5, and each of the fixed end portion 3 and the unfolded end portion 5 extends in a direction parallel to the first direction D ₁ . The fixed end portion 3 and the developed end portion 5 are arranged so as to be separated from each other in the second direction D ₂ with the central portion 7 in between.

The cleaning sheet 1 in the non-deployed state (multilayer structure 17, see Figure 28), the base sheet first portion 801a, by expanding the deployment direction D _S away from the base sheet second portion 801b, in the deployed state The cleaning sheet 1 (cleaning sheet portion 19, see FIG. 27) is formed, and the cleaning sheet 1 in the deployed state is used for cleaning the surface to be cleaned.

The cleaning sheet 1 includes a base sheet 801 and a plurality of sheets, that is, four sheets including a first sheet portion 811, a second sheet portion 813, a third sheet portion 815, and a fourth sheet portion 817. ..
The base sheet 801, the cleaning sheet 1 (the cleaning sheet portion 19) in the deployed state, the fixing connection portion 803 which extends parallel to intermittently to the first direction D ₁ at the center of the deployment direction D _S, base It is divided into a sheet first portion 801a and a base sheet second portion 801b.

As shown in FIG. 28, in the cleaning sheet 1 (laminated structure 17) in the undeveloped state, a plurality of sheets, that is, four sheets including the first sheet portion 811 to the fourth sheet portion 817 are in the thickness direction. It is arranged between the base sheet first portion 801a and the base sheet second portion 801b arranged at both ends of the T, and is arranged in the first direction and the other direction D ₁₂ in that order at a predetermined pitch P. Has been done. Since each of the first sheet portion 811 to the fourth sheet portion 817 has a length slightly shorter than the predetermined pitch P in the first direction D ₁ , the first sheet portion 811 to the fourth sheet portion 817 are formed. They are arranged at some intervals.

The base sheet 801 includes a grip portion forming sheet 207 for forming the grip portion 91, which is arranged on the surface opposite to the first sheet portion 811 to the fourth seat portion 817. Specifically, the grip portion forming sheet 207, the fixing connection portion 803 which extends intermittently in the first direction D ₁ at the center of the deployment direction D _S, and the gripping portion forming sheet first portion 11a, It is divided into a grip portion forming sheet second portion 11b, and the base sheet first portion 801a and the base sheet second portion 801b are opposite to the first sheet portion 811 to the fourth sheet portion 817, respectively. The first portion 11a of the grip portion forming sheet for forming the grip portion 91 arranged on the surface and the grip portion 91 arranged on the surface opposite to the first sheet portion 811 to the fourth sheet portion 817 are provided. A second portion 11b of a grip forming sheet for forming is provided.
The cleaning sheet 1 according to the seventh embodiment includes a fusing portion 15 for a grip portion similar to the cleaning sheet 1 according to the first embodiment.

Each of the grip portion forming sheet 207 and the first sheet portion 811 to the fourth sheet portion 817 is composed of a spunlace non-woven fabric containing heat-sealing fibers and water-retaining fibers, and contains a chemical solution. .. Further, the base sheet 801 is made of a spunbonded non-woven fabric made of heat-sealing fibers.

In the non-deployed state, the cleaning sheet 1 (laminated structure 17) has, at the fixed end portion 3, a grip portion forming sheet first portion 11a, a base sheet first portion 801a, a first sheet portion 811 to a fourth sheet portion 817, and a base. A fixing connecting portion 803 composed of a fused portion formed by fusing the seat second portion 801b and the grip portion forming sheet second portion 11b is provided. The fixing connecting portion 803 extends intermittently in the first direction D ₁ .

Fixing connection part 803 in the first direction other direction D _12, first securing coupling portion 849, the second fixing coupling portion 851, is partitioned into a third fixing connecting portion 853 and the fourth locking connection portion 855 To.

The first fixing connecting portion 849 melts the grip portion forming sheet first portion 11a, the base sheet first portion 801a, the first sheet portion 811, the base sheet second portion 801b, and the grip portion forming sheet second portion 11b. It is formed by wearing it. The second fixing connecting portion 851 fuses the grip portion forming sheet first portion 11a, the base sheet first portion 801a, the second sheet portion 813, the base sheet second portion 801b, and the grip portion forming sheet second portion 11b. It is formed by wearing it. The third fixing connecting portion 853 melts the grip portion forming sheet first portion 11a, the base sheet first portion 801a, the third sheet portion 815, the base sheet second portion 801b, and the grip portion forming sheet second portion 11b. It is formed by wearing it. Further, the fourth fixing connecting portion 855 includes a grip portion forming sheet first portion 11a, a base sheet first portion 801a, a fourth sheet portion 817, a base sheet second portion 801b, and a grip portion forming sheet second portion 11b. Is formed by fusing.

Since it is difficult to understand the cleaning sheet 1 (laminated structure 17) in the undeployed state, the first sheet portion 811 will be described with reference to the cleaning sheet 1 (cleaning sheet portion 19) in the unfolded state shown in FIG. 27. It has a first bellows structure 841 that is alternately folded back in the first direction unidirectional D ₁₁ and the first direction other direction D ₁₂ by the folded portion (not marked) of 15. Specifically, the first sheet portion 811 is folded back in the first direction and the other direction D ₁₂ in the unfolding direction and the other direction D _S2 , and then alternately in the first direction and the other direction D ₁₁ at a total of 15 folding portions. It has a first bellows structure 841.
The folded portion (not marked) of 15 extends in the second direction D ₂ in the cleaning sheet 1 (laminated structure 17) in the unfolded state, and the cleaning sheet 1 (cleaning sheet) in the unfolded state. In the portion 19), it extends substantially in a direction orthogonal to the first direction D ₁ .

The first sheet portion 603 is divided into the nth region (n = 1 to 16) of the first sheet portion by 15 folded portions (not marked), and both ends constituting the first bellows structure 841. It has a first sheet portion 1st region 811a and a 1st sheet portion 16th region 811b. The nth region (n = 1 to 16) of the first sheet portion is laminated in the thickness direction T in that order.
The first sheet portion first region 811a and the first sheet portion 16th region 811b correspond to one first end region 835 and the other first end region 837, respectively, which will be described later.

Each of the first sheet portion first region 811a and the first sheet portion 16th region 811b is connected to the base sheet 801. Specifically, the first sheet portion 1st region 811a and the first sheet portion 16th region 811b are connected to the base sheet first portion 801a and the base sheet second portion 801b, respectively.
The first sheet portion 1st region 811a and the first sheet portion 16th region 811b and the first fixing connecting portion 849 of the fixing connecting portion 803 form a first fixed end portion 831 to be described later. There is.

The second sheet portion 813 to the fourth sheet portion 817 have a second bellows structure 843 to a fourth bellows structure 847, similarly to the first sheet portion 811. Detailed description of the second sheet portion 813 to the fourth sheet portion 817 will be omitted.

In the cleaning sheet 1 in the unfolded state, each of the first sheet portion 811 to fourth sheet portion 817, along with and extends in a direction parallel to the expansion direction D _S (have deployed in the deployment direction D _S), the first The seat portions 811 to the fourth seat portion 817 are arranged in the first direction D ₁ at a predetermined pitch P in that order.

In the cleaning sheet 1 in the unfolded state, the first sheet portion 811 has a first fixed end portion 831 which extends in a direction parallel to the extending direction D _S as a whole, it extends in the second direction D ₂ parallel to direction , A first unfolded end 833 is provided. The first sheet portion 811 also has one first end region 835 arranged on the deployment direction unidirectional _DS1 side and the other first end region 837 arranged on the deployment direction other direction _DS2 side. And have.

As described above, the first fixed end portion 831 is composed of a first sheet portion first region 811a, a first sheet portion 16th region 811b, and a first fixing connecting portion 849 of the fixing connecting portion 803. Further, one first end region 835 and the other first end region 837 are composed of a first sheet portion first region 811a and a first sheet portion 16th region 811b, respectively.
Since the second sheet portion 813 to the fourth sheet portion 817 are the same as the first sheet portion 811, the description thereof will be omitted.

As shown in FIG. 28, the cleaning sheet 1 in the undeveloped state is a base sheet 801 (base sheet first portion 801a and base sheet second portion 801b) from a plurality of sheets (particularly, the fourth sheet portion 817). Also includes a pair of unfolding grips 85 formed by being elongated on the D ₁₂ side in the first direction and the other direction. Since the pair of deployment grip portions 85 is the same as the pair of deployment grip portions 85 shown in the first embodiment, the description thereof will be omitted.

The cleaning sheet 1 according to the seventh embodiment forms a folding structure by folding the fusion sheet 719 without forming (i) the fixing connecting portion 641, and then the folding structure is formed in the first direction. It can be manufactured in the same manner as the cleaning sheet 1 according to the sixth embodiment except that the fixing connecting portion 803 is intermittently formed in D ₁ and (ii) the hot melt adhesive 721 is not applied.

The cleaning sheet 1 according to the seventh embodiment is excellent in cleanability of the surface to be cleaned, like the cleaning sheet 1 according to the sixth embodiment. Further, the cleaning sheet 1 according to the seventh embodiment can be in a deployed state and a non-deployed state, and is excellent in compactness.

<< Eighth Embodiment >>
29 and 30 are diagrams for explaining the cleaning sheet 1 according to still another embodiment of the present disclosure (hereinafter, referred to as "eighth embodiment"). Specifically, FIG. 29 is a perspective view of the front, plane, and left side of the cleaning sheet 1 in the unfolded state. FIG. 30 is a perspective view of the front, plane, and left side of the cleaning sheet 1 in the undeployed state.
Since the cleaning sheet 1 according to the eighth embodiment has the same structure as the cleaning sheet 1 according to the sixth embodiment, the parts different from the cleaning sheet 1 according to the sixth embodiment will be mainly described.

In the cleaning sheet 1 according to the eighth embodiment, the odd-numbered sheets constituting the plurality of sheets (that is, the first sheet portion 603, the third sheet portion 607, the fifth sheet portion 611, the seventh sheet portion 615, and the ninth sheet) The portion 619) has the same shape as the first sheet portion 603 (and the second sheet portion 605 to the ninth sheet portion 619) of the cleaning sheet 1 according to the sixth embodiment. That is, the odd-numbered sheets, in developing direction other direction D _S2, the first direction other direction D _12, then, are folded at folded portions of the alternating meter 11 in the first direction one-way D _11.
In FIG. 29, a part of the first folded portion 901 of 11 which is the folded portion of the first sheet portion 603 is shown, but the third sheet portion 607, the fifth sheet portion 611, and the seventh sheet portion are shown. The folded portion of the 615 and the ninth sheet portion 619 is omitted.

On the other hand, in the cleaning sheet 1 according to the eighth embodiment, the even-numbered sheets (that is, the second sheet portion 605, the fourth sheet portion 609, the sixth sheet portion 613, and the eighth sheet portion 617) constituting the plurality of sheets are , A plane-symmetrical relationship between the first sheet portion 603 (and the second sheet portion 605 to the ninth sheet portion 619) of the cleaning sheet 1 according to the sixth embodiment and the plane passing through the second direction D ₂ and the thickness direction T. is there. In other words, the even-numbered sheet, in developing direction other direction D _S2, the first direction one-way D _11, then, are folded at folded portions of the alternating meter 11 in the first direction other direction D _12.

In FIG. 29, a part of the second folded portion 903 of 11 which is the folded portion of the second sheet portion 605 is shown, but the fourth sheet portion 609, the sixth sheet portion 613 and the eighth sheet portion are shown. The folded part of 617 is omitted.
Therefore, in the cleaning sheet 1 according to the eighth embodiment, the odd-numbered sheet and the even-numbered sheet are arranged so that the folded portions face each other.

In the cleaning sheet 1 according to the eighth embodiment, the odd-numbered sheet and the even-numbered sheet are hot at the folded-back portions facing each other (excluding the folded-back portion arranged at the center of the second direction D ₂ ). They are bonded to each other by a melt adhesive 905.
In the cleaning sheet 1 according to the eighth embodiment, when the surface to be cleaned is cleaned while moving the cleaning sheet 1 in the first direction D ₁ , the first sheet portions 603 to 9 sheets 619 are moved to each other in the first direction D ₁ . It can prevent the surface from falling over and has excellent cleanability of the surface to be cleaned.

<< 9th Embodiment >>
The cleaning sheet of the present disclosure is excellent in aesthetic appearance by coloring a plurality of sheet portions.
FIG. 31 is a diagram for explaining a cleaning sheet 1 according to another embodiment of the present disclosure (hereinafter, referred to as “9th embodiment”). Specifically, FIG. 31 is a front view of the cleaning sheet 1 in the deployed state, which is attached to the handy cleaning tool 251 (see the first embodiment).
Since the cleaning sheet 1 according to the ninth embodiment is generally the same as the cleaning sheet 1 according to the first embodiment, only the differences will be described.

In the cleaning sheet 1 according to the ninth embodiment, each of the second sheet portion 31 and the third sheet portion 51 is a spunlace non-woven fabric containing a mesh sheet having a blue color and heat-sealing fibers and water-retaining fibers having a white color. It is composed of a laminate with. The mesh sheet constitutes the inner surface of each of the second sheet portion 31 and the third sheet portion 51, and the spunlace non-woven fabric constitutes the outer surface of each of the second sheet portion 31 and the third sheet portion 51.
Each of the first sheet portion 21 and the fourth sheet portion 61 is made of a spunlace non-woven fabric having white color and containing heat-sealing fibers and water-retaining fibers.

Therefore, in the cleaning sheet 1 according to the ninth embodiment, due to the angle, the closer to the fixing connecting portion 71, the darker the blue color, and the farther from the fixing connecting portion 71 (closer to the deploying connecting portion 73), the darker the blue color. It is aesthetically pleasing because the blue color tends to look relatively pale.
Since the cleaning sheet 1 according to the ninth embodiment is the same as the cleaning sheet 1 according to the first embodiment in other parts, the description thereof will be omitted.

The cleaning sheet of the present disclosure has a laminated structure having a fixed end portion and an unfolded end portion, and is used by deploying the unfolded end portion in the unfolding direction. Further, the cleaning sheet of the present disclosure has a first direction, a second direction, and a thickness direction which are orthogonal to each other in the laminated structure.

In the laminated structure, the fixed end portion preferably extends in a direction along the first direction, and more preferably extends in a direction parallel to the first direction. Further, the developed end portion preferably extends in a direction along the first direction, and more preferably extends in a direction parallel to the first direction. This is from the viewpoint of ease of use of the cleaning sheet.

The cleaning sheet of the present disclosure may include one or more of the above laminated structures in a non-deployed state. When the cleaning sheet of the present disclosure includes a plurality of laminated structures, the cleaning sheet may include a plurality of laminated structures in any form. The cleaning sheet of the present disclosure can include, for example, a plurality of laminated structures arranged continuously or separated by a predetermined distance in the first direction, the second direction, the thickness direction, and the like.

In this case, the cleaning sheet is, for example, a part of a plurality of laminated structures (for example, a sheet arranged at an end portion of the plurality of sheet portions in the thickness direction of the laminated structure) as a separate sheet (for example, a separate sheet (for example). For example, it may be connected to a gripping sheet or the like continuously or separated by a predetermined distance, and a part of a plurality of laminated structures (for example, the thickness of the laminated structure among the plurality of sheet portions). Sheets arranged at the edges in the longitudinal direction) are connected, for example, a part of a plurality of laminated structures (for example, a sheet arranged at the end in the thickness direction among a plurality of sheet portions) is integrated. It may be composed of the sheet of.

The plurality of laminated structures form a plurality of cleaning sheet portions in the cleaning sheet in the deployed state, and the plurality of cleaning sheet portions are arranged on, for example, one side of a single-sided cleaning type floor cleaning tool. And can be placed on both sides of the double-sided cleaning tool for double-sided cleaning.

Further, the cleaning sheet in the unfolded state is a cleaning tool (for example, so that a plurality of cleaning sheet portions (derived from a plurality of laminated structures) are arranged continuously in the unfolding direction or separated by a predetermined distance. For example, it can be used by being gripped by a handy cleaning tool).

The cleaning sheet of the present disclosure includes a plurality of sheet portions in which the laminated structure is arranged in order in the thickness direction or the first direction of the laminated structure. The fact that the plurality of sheet portions are arranged in order in the thickness direction of the laminated structure means that the plurality of sheet portions are laminated in the thickness direction of the laminated structure. Further, the fact that the plurality of sheet portions are arranged in order in the first direction of the laminated structure means that the plurality of sheet portions are arranged in the first direction at a predetermined pitch, and the predetermined pitch is , The length of each sheet portion in the first direction may be the same, longer than that, or shorter than that.
In this specification, a laminated structure in which a plurality of sheet portions are arranged in order in the thickness direction may be referred to as a "thickness direction arranged laminated structure", and the plurality of sheet portions are arranged in order in the first direction. This is sometimes referred to as a "first-direction arrangement laminated structure".

The plurality of seat portions are connected by a fixing connecting portion at a fixed end portion.
The fixing connecting portion is arranged in a direction along the first direction, and is preferably arranged in a direction parallel to the first direction. This is from the viewpoint of ease of use of the cleaning sheet.
The fixing connecting portion may be arranged continuously or intermittently. The fixing connecting portion includes an adhesive portion, a fused portion made of heat-sealing fibers, a folded portion of a continuous sheet portion, and the like.

When the laminated structure is a laminated structure arranged in the thickness direction, the fixed end portion can fix all of the plurality of sheet portions in the direction along the first direction.
When the laminated structure is a first-direction arrangement laminated structure, the fixed end portion can sequentially fix a plurality of sheet portions in a direction along the first direction.

When the fixing connecting portion is arranged in a direction parallel to the first direction, the unfolding direction constitutes the circumferential direction of the first direction, and the unfolding direction is a cross-sectional view of the laminated structure (the first). It coincides with the thickness direction in the cross-sectional view in two directions, and coincides with the second direction in the plan view (plan view in the thickness direction) of the laminated structure.

In the cleaning sheet of the present disclosure, a plurality of sheet portions are arranged in order by deploying the cleaning sheet in the unfolding direction, that is, by forming the unfolded state (laminated structure) to the unfolded state (cleaning sheet portion). It is configured.
Hereinafter, (i) a plurality of sheet portions in the “thickness direction arrangement laminated structure” are configured to be arranged in order in the “deployment direction” in the cleaning sheet unfolded state (cleaning sheet portion). It is referred to as "arrangement cleaning sheet portion", and (ii) a plurality of sheet portions in the "first direction arrangement laminated structure" are configured to be sequentially arranged in the "first direction" in the cleaning sheet unfolded state (cleaning sheet portion). This is referred to as a "first-direction forward-arranged cleaning sheet portion".

In the cleaning sheet of the present disclosure, at least a part of a plurality of sheet portions can be connected to an adjacent sheet portion among the plurality of sheet portions by a deploying connecting portion at the unfolding end portion. As a result, the plurality of sheet portions are less likely to fall down, and as a new cleaning surface, it becomes easier to contact the surface to be cleaned in order.

When the cleaning sheet of the present disclosure has a "thickness direction arrangement laminated structure" and a "development direction order arrangement cleaning sheet portion", it will be described below using a character expression as necessary.
-Multiple sheet portions include n sheet portions.
The n sheet portions include, for example, a k-th sheet portion, a (k + 1) th (k + 1) sheet portion, a (k + 2) th sheet portion, and the like.
The k-th unfolding connecting portion and the desired unfolding connecting portion and the plurality of unfolding connecting portions that the k-th sheet portion and the (k + 1) th (k + 1) sheet portion can have, respectively, the k-th unfolding connecting portion and the plurality of k-th unfolding connecting portions. Called a part.
A desired unfolding connecting portion and a plurality of unfolding connecting portions that the first (k + 1) sheet portion and the (k + 2) th sheet portion can have, respectively, a first (k + 1) unfolding connecting portion and a plurality of unfolding connecting portions. It is called the first (k + 1) expansion connecting portion.

In the cleaning sheet of the present disclosure, the number of the plurality of sheet portions, that is, n is not particularly limited. For example, when the cleaning sheet has a “thickness direction arrangement laminated structure” and a “deployment direction order arrangement cleaning sheet portion”, n is a desired deployment angle of the laminated structure and redundancy of each of the plurality of sheet portions. It can change depending on the degree. For example, per 180 ° deployment angle of the laminated structure, n can be, for example, 3 to 12.
Further, when the cleaning sheet has a "first direction arrangement laminated structure" and a "first direction order arrangement cleaning sheet portion", n may change depending on the length of each sheet portion in the first direction. , N can be, for example, 1 to 12.

When the cleaning sheet of the present disclosure has a "thickness direction arrangement laminated structure" and a "deployment direction order arrangement cleaning sheet portion", the cleaning sheet satisfies the following requirements (hereinafter referred to as "first requirement"). be able to.
(1-1) The n-sheet portion includes the k-th sheet portion and the (k + 1) th sheet portion.
(1-2) The k-th sheet portion and the (k + 1) th (k + 1) sheet portion are connected by the k-th development connecting portion.

By satisfying the first requirement, the k-th sheet portion and the (k + 1) th sheet portion can be easily arranged in order in the unfolded state of the cleaning sheet.
Here, k is preferably an integer in the range of 1 to (n-1), preferably at least a part, more preferably 40% or more, still more preferably 60% or more, and even more preferably 80% or more. Note that k does not have to be a continuous integer. Further, the upper limit of k is an integer of 100% in the range of 1 to (n-1). When k satisfies the above range, the ratio of the sheet portion having the above-mentioned effect can be increased among the plurality of sheet portions.

When the cleaning sheet of the present disclosure has a "thickness direction arrangement laminated structure" and a "deployment direction order arrangement cleaning sheet portion", the cleaning sheet satisfies the following requirements (hereinafter referred to as "second requirement"). be able to.
(2-1) The n-sheet portion includes the k-th sheet portion and the (k + 1) th sheet portion.
(2-2) The k-th sheet portion and the (k + 1) th (k + 1) sheet portion are connected by the k-th development connecting portion.
(2-3) The k-th deployment connecting portion includes a plurality of k-th deploying connecting portions.

By satisfying the second requirement, the k-th sheet portion and the (k + 1) th sheet portion can be easily arranged in order in the unfolded state of the cleaning sheet, and the k-th sheet portion and the (k + 1) sheet portion can be arranged. However, it becomes easier to adopt a reciprocating structure.
Here, k is preferably an integer in the range of 1 to (n-1), preferably at least a part, more preferably 40% or more, still more preferably 60% or more, and even more preferably 80% or more. Note that k does not have to be a continuous integer. Further, the upper limit of k is an integer of 100% in the range of 1 to (n-1). When k satisfies the above range, the ratio of the sheet portion having the above-mentioned effect can be increased among the plurality of sheet portions.

When the cleaning sheet of the present disclosure has a "thickness direction arrangement laminated structure" and a "deployment direction order arrangement cleaning sheet portion", the cleaning sheet satisfies the following requirements (hereinafter referred to as "third requirement"). be able to.
(3-1) The n-sheet portion includes the k-th sheet portion, the (k + 1) th sheet portion, and the (k + 2) th sheet portion.
(3-2) The k-th sheet portion and the (k + 1) th (k + 1) seat portion are connected by the k-th development connecting portion.
(3-3) The (k + 1) th sheet portion and the (k + 2) th sheet portion are connected by the (k + 1) th expansion connecting portion.

By satisfying the third requirement, it becomes easy to form a reciprocating structure in which the third (k + 1) sheet portion reciprocates alternately in one direction in the deployment direction and in the other direction in the deployment direction.
Here, k is preferably an integer in the range of 1 to (n-2), preferably at least a part, more preferably 40% or more, still more preferably 60% or more, and even more preferably 80% or more. Note that k does not have to be a continuous integer. The upper limit of k is an integer of 100% in the range of 1 to (n-2). When k satisfies the above range, the ratio of the sheet portion having the above-mentioned effect can be increased among the plurality of sheet portions.

When the cleaning sheet of the present disclosure has a "thickness direction arrangement laminated structure" and a "deployment direction order arrangement cleaning sheet portion", the cleaning sheet satisfies the following requirements (hereinafter referred to as "fourth requirement"). be able to.
(4-1) The n-sheet portion includes the k-th sheet portion, the (k + 1) th sheet portion, and the (k + 2) th sheet portion.
(4-2) The k-th sheet portion and the (k + 1) th sheet portion are connected by a k-th expansion connecting portion including a plurality of k-deploying connecting portions.
(4-3) The (k + 1) th (k + 1) sheet portion and the (k + 2) th (k + 2) sheet portion are connected by a first (k + 1) expansion connecting portion including a plurality of (k + 1) expansion connecting portions.
(4-4) At least a part (preferably 40% or more, more preferably 60% or more, for example, all except both ends in the first direction) of the plurality of k-deployment connecting portions constituting the k-th expansion connecting portion. ) And at least a part (preferably 40% or more, more preferably 60% or more, for example, both ends in the first direction) of the plurality of (k + 1) expansion connecting portions constituting the first (k + 1) expansion connecting portion. (Except for all) are not arranged at overlapping positions in the thickness direction.

By satisfying the fourth requirement, it is possible to form a reciprocating structure in which the (k + 1) th sheet portion alternately reciprocates in one direction in the deployment direction and in the other direction in the deployment direction.
Here, k is preferably an integer in the range of 1 to (n-2), preferably at least a part, more preferably 40% or more, still more preferably 60% or more, and even more preferably 80% or more. Note that k does not have to be a continuous integer. The upper limit of k is an integer of 100% in the range of 1 to (n-2). When k satisfies the above range, the ratio of the sheet portion having the above-mentioned effect can be increased among the plurality of sheet portions.

The above-mentioned "position overlapping in the thickness direction (of the (k + 1) th sheet portion)" is one of the two sides of the first (k + 1) sheet portion facing each other with the constituent member of the first (k + 1) sheet portion sandwiched between them. It means the overlapping positions in the thickness direction.
Therefore, when the (k + 1) th sheet portion is flat and does not have a folded structure, the above-mentioned "position overlapping in the thickness direction (of the (k + 1) th sheet portion)" is interpreted literally.

On the other hand, when the (k + 1) th sheet portion has a folded structure, the plurality of k-th unfolding connecting portions and the plurality of (k + 1) unfolding connecting portions are the first of the (k + 1) sheet portions. (K + 1) Of both sides facing each other with the constituent members of the sheet portion sandwiched between them, if the positions do not overlap in the thickness direction, they are not considered to overlap in the thickness direction and are excluded. This is because a reciprocating structure can be formed in the (k + 1) th sheet portion in the cleaning sheet in the unfolded state.

For example, when the (k + 1) th sheet portion has a plurality of Ω structures (Ω ₁ structure and Ω ₂ structure), one of the plurality of k-th expansion connecting portions is arranged at the first top of the Ω ₁ structure. , And one of the plurality of (k + 1) unfolding connecting portions is arranged at the first bottom (second top of the Ω ₂ structure), and one of the plurality of k-th unfolding connecting portions and a plurality of (k + 1) th (k + 1) connecting portions. ) Even if one of the unfolding connecting portions overlaps in the thickness direction, one of the plurality of k-th unfolding connecting portions and one of the plurality of (k + 1) unfolding connecting portions are still present. It is not assumed that it is arranged at the "position overlapping in the thickness direction (of the (k + 1) th sheet portion)", but is excluded.

When the cleaning sheet of the present disclosure satisfies the first to fourth requirements, the first (k + 1) sheet portion is oriented in the direction along the first direction by a plurality of folded portions extending in the direction along the second direction. It can be folded back alternately (hereinafter referred to as "fifth requirement"). By satisfying the fifth requirement, the wave height of the reciprocating structure of the (k + 1) seat portion can be increased. The preferable range of k is as described in each requirement.

When the cleaning sheet of the present disclosure satisfies the first to fifth requirements, the (k + 1) sheet portion is a plurality of first tops protruding in one direction in the thickness direction, each of which is the first. One having a top surface (Ω ₁ structure) and _one having a plurality of second tops protruding in the other directions in the thickness direction, each of which has a second top surface (Ω ₂ structure). (Hereinafter referred to as "sixth requirement"). By satisfying the sixth requirement, the wave height of the reciprocating structure of the (k + 1) th sheet portion can be increased in the cleaning sheet in the deployed state. The preferable range of k is as described in each requirement.

When the cleaning sheet of the present disclosure satisfies the fourth requirement and the sixth requirement, a plurality of k-deployment connecting portions are arranged on each of the plurality of first top surfaces (hereinafter, "7th". It is called "requirements"). By satisfying the seventh requirement, the wave height of the reciprocating structure of the (k + 1) th sheet portion can be increased in the cleaning sheet in the deployed state. The preferable range of k is as described in each requirement.

When the cleaning sheet of the present disclosure satisfies the sixth requirement or the seventh requirement, the total area of the plurality of first top surfaces is preferably the area of the first (k + 1) sheet portion in a plan view in the thickness direction. It can be 50% or more and 100% or less, more preferably 70% or more and 100% or less, and further preferably 90% or more and 100% or less (hereinafter referred to as "eighth requirement"). By satisfying the eighth requirement, the degree of freedom for arranging the plurality of k-deployment connecting portions constituting the k-deployment connecting portion on each of the plurality of first top surfaces is increased, and the (k + 1) th sheet Since the redundancy of the portion is increased, the wave height of the reciprocating structure of the (k + 1) th sheet portion and the deployment angle of the cleaning sheet (laminated structure) can be increased. The preferable range of k is as described in each requirement.

When the cleaning sheet of the present disclosure meets the 4th and 6th requirements, the 7th requirement, the 4th requirement and the 8th requirement, etc., a plurality of (k + 1) unfolding connecting portions are used. , It can be arranged on each of a plurality of second top surfaces (hereinafter, referred to as "9th requirement"). By satisfying the ninth requirement, the wave height of the reciprocating structure of the (k + 1) th sheet portion can be increased in the cleaning sheet in the deployed state. The preferable range of k is as described in each requirement.

When the cleaning sheet of the present disclosure satisfies the sixth requirement, the seventh requirement, the eighth requirement, the ninth requirement, etc., the total area of the plurality of second top surfaces becomes the first (k + 1) in the plan view in the thickness direction. ) The area of the sheet portion is preferably 50% or more and 100% or less, more preferably 70% or more and 100% or less, and further preferably 90% or more and 100% or less (hereinafter, "10th requirement"). Can be called). By satisfying the tenth requirement, the degree of freedom for arranging the plurality of (k + 1) unfolding connecting portions constituting the tenth (k + 1) unfolding connecting portion on each of the plurality of second top surfaces is increased, and the first Since the redundancy of the (k + 1) sheet portion is increased, the wave height of the reciprocating structure of the (k + 1) third sheet portion and the deployment angle of the cleaning sheet (laminated structure) can be increased. The preferable range of k is as described in each requirement.

When the cleaning sheet of the present disclosure meets the fifth requirement, the (k + 1) sheet portion is preferably 120% or more, more preferably 150% or more, still more preferably 200% or more, and even more preferably 250. It is possible to have a redundancy of% or more (hereinafter referred to as "11th requirement"). By satisfying the eleventh requirement, the wave height of the reciprocating structure of the (k + 1) th sheet portion can be increased in the cleaning sheet in the deployed state. The preferable range of k is as described in each requirement.

When the cleaning sheet of the present disclosure satisfies the second requirement, the third requirement, the fourth requirement, etc., it is continuous or intermittently from at least a part of the plurality of k-deployment connecting portions toward the fixed end portion. It is possible to further include a kth auxiliary connecting portion (hereinafter, referred to as "12th requirement") that connects the kth sheet portion and the (k + 1) th (k + 1) seat portion that are extended. By satisfying the twelfth requirement, it becomes easy to hold the reciprocating structure formed with the kth auxiliary connecting portion between the kth sheet portion and the (k + 1) th sheet portion. The preferable range of k is as described in each requirement.
The k-th auxiliary connecting portion includes an adhesive portion by an adhesive, a fusion portion by a heat-sealing fiber, a folded portion of a continuous sheet portion, and the like.

When the cleaning sheet of the present disclosure has a "first-direction arrangement laminated structure" and a "first-direction order-arranged cleaning sheet portion", the following will be described using a character formula as necessary.
-Multiple sheet portions include n sheet portions.
-N sheet portions include the j-th sheet portion.
-The j-th sheet portion alternately has m folding portions in one direction in the first direction and the other direction in the first direction, specifically, the seat area of (m + 1) by the i-folding portion. Has a bellows structure partitioned in the h-th sheet region.

j is an integer from 1 to n, i is an integer from 1 to m, and h is an integer from 1 to (m + 1).
The preferable range of n may vary depending on the length of each of the j-th sheet portions in the first direction and the like, but may be, for example, 2 to 15.
The preferable range of m may vary depending on the deployment angle that the laminated structure should have, the length of each of the j-th sheet portions in the first direction, and the like. For example, per 180 ° of the laminated structure, m is For example, it can be 3 to 20.

When the cleaning sheet of the present disclosure has a "first-direction arrangement laminated structure" and a "first-direction order-arrangement cleaning sheet portion", the cleaning sheet meets the following requirements (hereinafter referred to as "13th requirement"). Can be met.
(13-1) The laminated structure further includes a pair of base sheet portions arranged at both ends in the thickness direction.
(13-2) n sheet portions are arranged side by side in the first direction.
(13-3) The first sheet area and the (m + 1) th sheet area of the j-th sheet portion are connected to the pair of base sheet portions.
j is an integer from 1 to n, i is an integer from 1 to m, and h is an integer from 1 to (m + 1).

By satisfying the thirteenth requirement, (i) the bellows structure sheet can increase its area, and (ii) when cleaning the surface to be cleaned while moving the cleaning sheet in the first direction, a plurality of sheets can be used. It is possible to prevent the cleaning sheet from falling in the first direction. (Iii) When cleaning the surface to be cleaned while moving the cleaning sheet in the second direction, a certain sheet portion among the sheet portions constituting the bellows structure sheet Even when the surface to be cleaned is cleaned and dirt is attached, the adjacent sheet portion adjacent to a certain sheet portion can clean the surface to be cleaned.

When the cleaning sheet of the present disclosure satisfies the thirteenth requirement, the cleaning sheet can further satisfy the following requirements (hereinafter, referred to as "14th requirement").
(14-1) The n-sheet portion includes the j-th sheet portion and the (j + 1) th sheet portion.
(14-2) The j-th sheet portion is divided into the h-th sheet area by the i-folded portion.
(14-3) The (j + 1) th sheet portion is divided into the (h + 1) th sheet area by the third (i + 1) folding portion.
(14-4) The i-fold folding portion and the (i + 1) folding portion are connected.

By satisfying the 14th requirement, when cleaning the surface to be cleaned while moving the cleaning sheet in the first direction, it is possible to prevent the j-seat portion and the (j + 1) sheet portion from falling in the first direction. ..
In addition, j is preferably an integer in the range of 1 to (n-1), preferably at least a part, more preferably 40% or more, further preferably 60% or more, and even more preferably 80% or more, and i is An integer in the range of 1 to (m-1) is preferably at least a portion, more preferably 40% or more, even more preferably 60% or more, and even more preferably 80% or more, and h is 1 to 1 to. The range of m is preferably an integer of at least a portion, more preferably 40% or more, even more preferably 60% or more, and even more preferably 80% or more. It should be noted that each of j, i and h does not have to be a continuous integer. The upper limit of each of j, i and h is 100%. When j, i and h satisfy the above range, the above-mentioned effect becomes larger.
The connection is formed by means known in the art, for example, an adhesive portion, a heat-sealing fiber-bonded portion, and the like.

When the cleaning sheet of the present disclosure has a "first-direction arrangement laminated structure" and a "first-direction order-arranged cleaning sheet portion", the plurality of sheet portions are particularly limited as long as they are arranged in order in the first direction. However, for example, it can be arranged at a predetermined pitch P. When each of the plurality of sheet portions has a predetermined length in the first direction, for example, the length of each of the plurality of sheet portions in the first direction is made equal to the pitch P, and among the plurality of sheet portions. , The distance between the sheets adjacent to each other in the first direction may be set to 0.

In the cleaning sheet of the present disclosure, when the laminated structure is a laminated structure arranged in the thickness direction, at least a part of the plurality of sheet portions is the developed end portion in a direction parallel to the fixing connecting portion. Has a structure in which the extension length of the fixed end portion is longer than the length of the fixed end portion in a direction parallel to the fixing connection portion, that is, the extension end portion has an extension length structure. As a result, not only the unfolded end portion but also the central portion between the fixed end portion and the unfolded end portion can be cleaned as a cleaning surface, and the cleaning sheet is excellent in cleanability of the surface to be cleaned.

In the developed end extension length structure, at least a part of the plurality of sheet portions has a folded portion (for example, that shown in the first embodiment) or is substantially polygonal (for example, a triangle, a quadrangle, etc.). For example, those having a predetermined shape such as a trapezoid, a pentagon), a substantially circular shape, and a substantially elliptical shape can be mentioned.
When at least a part of the plurality of sheet portions has the above-mentioned predetermined shape, the fixed end portion and the unfolded end portion have an extension length of the unfolded end portion in a direction parallel to the fixing connecting portion. It must be selected to be longer than the length of the fixed end in the direction parallel to the fixing connection.

In the cleaning sheet of the present disclosure, when the laminated structure is a laminated structure arranged in the thickness direction and at least a part of the plurality of sheet portions has the above-mentioned folded portion, the laminated structure is in a direction parallel to the fixing connecting portion. The preferable relationship between the extension length of the unfolded end portion and the length of the fixed end portion in the direction parallel to the fixing connecting portion is the same as the above-mentioned redundancy.

In the cleaning sheet of the present disclosure, when the laminated structure is a laminated structure arranged in the thickness direction and at least a part of the plurality of sheet portions has the above-mentioned predetermined shape, the laminated structure is in a direction parallel to the fixing connecting portion. The extension length of the unfolded end portion is preferably 1.05 times or more, more preferably 1.1 times or more, still more preferably 1. times the length of the fixed end portion in the direction parallel to the fixing connecting portion. It is long in the range of 20 times or more, preferably 1.60 times or less, more preferably 1.50 times or less, and further preferably 1.45 times or less. By doing so, the cleaning sheet is excellent in cleanability of the surface to be cleaned.

In the cleaning sheet of the present disclosure, when the laminated structure is a laminated structure arranged in the thickness direction and at least a part of the plurality of sheet portions has the above-mentioned predetermined shape, the end portion of the unfolded end portion is fixed. It is preferably within a predetermined range (specifically, within the distance between the developed end and the fixed end) from the edge of the end.

Specifically, as shown in FIG. 33, the sheet portion 1011 has a fixed end portion 3 and a developed end portion 5. The fixed end 3 and the unfolded end 5 are parallel to the first direction D ₁ and are separated by a distance R. Fixed end 3, the first ends of the direction D _1, has a first edge 1013 and second edge 1015, and deployed end 5, the first ends of the direction D _1, the first end It has 1017 and a second end 1019. Further, the first end portion 1017 of the unfolded end portion 5 is within a distance R from the first end edge 1013 of the fixed end portion 3, and the second end portion 1019 of the unfolded end portion 5 is the fixed end portion 3. It is within a distance R from the second edge 1015 of. As a result, even if the sheet portion 1011 has a width in the first direction D ₁ when the cleaning sheet is unfolded, both ends of the cleaning sheet in the first direction D ₁ are compared with the portion in between. This makes it difficult to project in the thickness direction, making it easier to clean flat surfaces.
When both ends of the cleaning sheet in the first direction D ₁ project in the thickness direction as compared with the portion between them, it becomes easier to clean a non-flat surface such as a curved surface.

The cleaning sheet of the present disclosure may be of a wet type or a dry type, and in the cleaning sheet of the present disclosure, a plurality of sheet portions constituting the laminated structure may be a sheet used in the art, for example, a cloth (a cloth). For example, non-woven fabric, woven fabric, knitted fabric) can be included without particular limitation. The fabric may be a perforated sheet in which a plurality of holes are arranged, or may be a non-perforated sheet in which no holes are arranged. The perforated sheet can be, for example, a perforated sheet formed by the water jet method or the needle punching method described in JP-A-2017-118963.

In addition, the plurality of sheet portions may include a net sheet. Examples of the net sheet include those having a mesh structure made of synthetic resin. Further, the net sheet may independently form the plurality of sheet portions, and may form the plurality of sheet portions in a state of being attached to another sheet-like material, for example, the above-mentioned cloth. .. In other words, the single sheet portion constituting the plurality of sheet portions may be a laminate of a net sheet and another sheet-like material (for example, cloth).
In the above-mentioned laminated net sheet, the net sheet can be arranged so as to form an inner surface or an outer surface of the laminated net sheet.

At least a part, for example, all of the plurality of sheet portions can contain heat-sealing fibers. As a result, the fixing connecting portion, the deploying connecting portion, and the desired auxiliary connecting portion can be easily configured from the fused portion.

The heat-sealing fibers include synthetic fibers such as heat-sealing fibers such as polyolefin polymers such as polyethylene or polypropylene; polyester polymers such as terephthalate polymers such as polyethylene terephthalate (PET). Polybutylene terephthalate, polypentylene terephthalate; polyamide-based polymers such as nylon 6 or nylon 6,6; acrylic polymers; polyacrylonitrile-based polymers; or modified products thereof, or fibers formed from combinations thereof. Be done.

In the cleaning sheet of the present disclosure, at least a part, for example, all of the plurality of sheet portions constituting the laminated structure can contain water-retaining fibers. As a result, the cleaning sheet has functions such as being easy to contain the chemical solution and being easy to absorb the dirt of the liquid.
Examples of the water-retaining fiber include cellulosic fibers, for example, pulp fibers, regenerated cellulose fibers, and semi-synthetic cellulose fibers. The regenerated cellulose fibers include rayon fibers, for example, viscose rayon obtained from viscose, polynosic and modal, cuprammonium rayon fibers obtained from a cuprammonium rayon solution of cellulose (also referred to as “cupra”); organic compounds. Rayon and tencel, which are obtained by an organic solvent spinning method using an organic solvent which is a mixed solution of water and water and do not pass through a cellulose derivative.
Examples of the semi-synthetic cellulose fibers include acetate fibers, for example, triacetate fibers and diacetate fibers.

The net sheet, the perforated sheet, and the non-perforated sheet have the following relationship in terms of dirt scraping property due to the roughness of the mesh.
Net sheet> Perforated sheet> Non-perforated sheet When the cleaning sheet of the present disclosure contains at least two types of the above-mentioned net sheet, perforated sheet and non-perforated sheet, relatively from the viewpoint of scraping dirt. A high-scraping sheet having a high scraping property and a low-scraping sheet having a relatively low scraping property can be arranged as follows.

(I) In the thickness direction of the laminated structure, the high scrapability sheet is arranged in the center (relatively many) and the low scrapability sheet is arranged at the end (relatively many).
When the high scraping sheet is placed (relatively many) in the center of the laminated structure, the high scraping sheet is placed (relatively many) closer to the surface to be cleaned in the unfolded state of the cleaning sheet, and Cleaning the cleaning sheet because the low scraping sheet is more likely to be placed around it (relatively more), so that the high scraping sheet can remove dirt, and the low scraping sheet can wipe off dirt. Sex improves.

(Ii) When the cleaning sheet is divided into the tip side region and the proximal end side region, the high scraping sheet is arranged (relatively large) in the distal end side region, and the low scraping sheet is placed in the proximal end side region. Place (relatively many).
By arranging (relatively many) high scraping sheets in the tip side area, the tip side area of the cleaning sheet is cleaned, and (relatively many) low scraping sheets are arranged in the base end side area. By doing so, the area on the base end side of the cleaning sheet can be wiped off.
The distal end side region and the proximal end side region are orthogonal lines extending in a direction (for example, the second direction) orthogonal to the predetermined direction at the center of the cleaning sheet in a predetermined direction (for example, the first direction). It can be partitioned. Further, the distal end side region is a region relatively far from the user, and the proximal end side region is a region relatively close to the user.

Examples of the above-mentioned fabric include spunlace non-woven fabric and spunbond non-woven fabric. When the cleaning sheet is a dry type, the plurality of sheet portions can include spunlace non-woven fabric, spunbond non-woven fabric and the like.

When the cleaning sheet is a wet type, the plurality of sheet portions can include spunlace non-woven fabric, spunbond non-woven fabric and the like. Further, when the cleaning sheet is a wet type, the sheet portions arranged at both ends in the thickness direction of the laminated structure are made of a hydrophobic cloth (for example, from synthetic fiber) which is a cloth having a relatively high hydrophobicity. The spunlaced non-woven fabric is composed of spunbonded non-woven fabrics, and the sheet portion arranged between them is a hydrophilic cloth (for example, a spunlaced non-woven fabric containing heat-sealing fibers and water-retaining fibers), which is a relatively highly hydrophilic cloth. ), And the hydrophilic cloth can be impregnated with the chemical solution. As a result, the chemical solution held by the hydrophilic cloth is less likely to exceed the hydrophobic cloth during use, and for example, the chemical solution held by the hydrophilic cloth exceeds the hydrophobic cloth and is less likely to be touched by the user. In addition, the chemical solution held by the hydrophilic fabric is less likely to volatilize beyond the hydrophobic fabric.

When the cleaning sheet of the present disclosure is a wet type, it is preferable that the cleaning sheet in the non-deployed state includes a pair of unfolding grip portions for deploying the cleaning sheet. This is because when the cleaning sheet is a wet type, the chemical solution may cause the plurality of sheet portions constituting the laminated structure to stick to each other, making it difficult to develop the cleaning sheet. From the viewpoint of ease of deploying the cleaning sheet, the pair of deployable grips preferably protrude outward (for example, in the first direction) of the cleaning sheet from the cleaning sheet in the undeployed state, and are paired. The unfolding grips are more preferably arranged apart by a predetermined distance, and the pair of unfolding grips are even more preferably made of a hydrophobic fabric.
The cleaning sheet of the present disclosure may and may not further contain tow known in the art.

The cleaning sheet of the present disclosure may further include a cleaning tool or a gripping portion for the user to grip the cleaning sheet. The grip portion can be arranged at an arbitrary position on the cleaning sheet.
When the cleaning sheet of the present disclosure has a single laminated structure, for example, when the deployment angle is less than 360 °, both end sheet portions arranged at both ends in the thickness direction of the plurality of sheet portions. Can have a grip. The grip portion can be formed, for example, by connecting, for example, fusing an additional sheet-like member, for example, a grip portion forming sheet, to the both end sheet portions.

When the cleaning sheet of the present disclosure has a single laminated structure and the deployment angle is 360 °, the grip portion is formed between the portions of the both end sheet portions facing each other. be able to.
Further, the grip portion can be formed between two adjacent seat portions among the plurality of seat portions. The grip portion can be formed between two adjacent seat portions, for example, in the central portion.

Further, the grip portion may be composed of a single grip portion, or may be composed of a plurality of grip portions. For example, by inserting a bifurcated cleaning sheet attachment portion of the cleaning tool into the two grip portions, or by inserting the user's thumb and index finger to little finger into the two grip portions. It is possible to prevent the cleaning sheet from slipping out of the cleaning tool or the user's hand. Examples of the two gripping portions include a pair of gripping portions having a fixing connecting portion sandwiched between them.

When the cleaning sheet of the present disclosure has a plurality of laminated structures, the cleaning sheet of the present disclosure is between the plurality of cleaning sheet portions in addition to the grip portion when the cleaning sheet of the present disclosure has a single laminated structure. A grip portion can be formed in the portion (for example, between the base sheet portions of a plurality of cleaning sheet portions).

When the cleaning sheet of the present disclosure includes a grip portion, the grip portion can extend in any direction, and from the viewpoint of ease of gripping the cleaning tool or the user, the grip portion is provided. It is preferable that the insertion port portion is provided with an opening in the first direction and extends in the direction along the first direction.
Further, it is preferable that the insertion port portion includes an extending portion extending in the first direction, for example, an extending portion extending away from the plurality of seat portions in the first direction. This makes it easier for the user to insert the cleaning tool into the grip and the user to insert a part of the body into the grip.

In the cleaning sheet according to another aspect of the present disclosure, in the laminated structure (unexpanded state), at least a part of the unfolded ends of the plurality of sheet portions is formed by the unfolding connecting portion in the thickness direction of the plurality of sheet portions. It is connected to the unfolded end of the seat portion adjacent to the seat, and has a reciprocating structure (in the unfolded state) by unfolding in the unfolded direction. As a result, the cleaning sheet in the unfolded state is excellent in cleanability of the surface to be cleaned.
Further, in the cleaning sheet, the two sheet portions connected by the deploying connecting portion have different reciprocating structures from each other. As a result, the cleaning sheet in the unfolded state has excellent new area exposure and excellent cleanability of the surface to be cleaned.

1 Cleaning sheet 3 Fixed end 5 Expanded end 7 Central part 11a Grip part forming sheet 1st part 11b Grip part forming sheet 2nd part 13a Base sheet 1st part 13b Base sheet 2nd part 17 Laminated structure 19 Cleaning sheet Part 21 1st seat part 31 2nd seat part 51 3rd seat part 61 4th seat part 71 Fixing connection part 73 Deployment connection part 85 Deployment grip part 91 Grip part 93 1st reciprocating structure 95 2nd reciprocating structure 97 the third reciprocating structure 99 fourth reciprocating structure D ₁ first direction D ₁₁ the first direction one-way D ₁₂ the first direction other direction D ₂ a second direction D ₂₁ the second direction one-way D ₂₂ second direction other direction D _S expand Direction D _S1 Deployment direction One direction D _S2 Deployment direction Other direction T Thickness direction T ₁ Thickness direction One direction T ₂ Thickness direction Other direction

Claims

A cleaning sheet that has a laminated structure with fixed ends and unfolded ends and is used by unfolding.
A plurality of sheet portions in which the laminated structure has a first direction, a second direction, and a thickness direction orthogonal to each other, and the laminated structure is sequentially arranged in the thickness direction. Is equipped with
The plurality of seat portions are connected at the fixed end portion by a fixing connecting portion extending in a direction along the first direction.
The cleaning sheet is configured such that the plurality of sheet portions are arranged in order by expanding the unfolded end portion.
The extension length of the unfolded end portion in the direction parallel to the fixing connecting portion of at least a part of the plurality of sheet portions is larger than the length of the fixed end portion in the direction parallel to the fixing connecting portion. Is configured to be longer,
The cleaning sheet, characterized in that.
The cleaning sheet according to claim 1, wherein at least a part of the plurality of sheet portions is connected to an adjacent sheet portion among the plurality of sheet portions by a deploying connecting portion at the unfolding end portion.
The plurality of sheets are composed of n sheet portions.
The n-sheet portion includes a k-th sheet portion, a (k + 1) th sheet portion, and a (k + 2) th sheet portion.
The k-th sheet portion and the (k + 1) th sheet portion are connected by the k-th expansion connecting portion, which is the expansion connecting portion.
The (k + 1) th sheet portion and the (k + 2) th sheet portion are connected by the first (k + 1) unfolding connecting portion, which is the unfolding connecting portion.
At least a part of the plurality of k-th expansion connecting portions constituting the k-th expansion connecting portion and at least a part of the plurality of (k + 1) expanding connecting portions constituting the (k + 1) th expansion connecting portion. , Not arranged at overlapping positions in the thickness direction,
Here, k is at least a part of an integer in the range of 1 to (n-2).
The cleaning sheet according to claim 2.
The cleaning sheet according to claim 3, wherein the first (k + 1) sheet portion is alternately folded back in the direction along the first direction by a plurality of folded portions extending in the direction along the second direction.
A plurality of first top portions in which the first (k + 1) sheet portion projects in one direction in the thickness direction, each of which has a first top surface, and another direction in the thickness direction. A plurality of second apexes protruding from the surface, each of which is provided with a second apex surface, and a plurality of k-th deployment connecting portions and a plurality of (k + 1) unfolding connecting portions. However, the cleaning sheet according to claim 3 or 4, which is arranged on the first top surface and the second top surface, respectively.
The cleaning sheet according to claim 5, wherein the total area of the plurality of first top surfaces is 50% or more and 100% or less of the area of the first (k + 1) sheet portion in a plan view.
The cleaning sheet according to claim 5 or 6, wherein the total area of the plurality of second top surfaces is 50% or more and 100% or less of the area of the (k + 1) sheet portion in a plan view.
The k-seat portion and the (k + 1) th (k + 1) sheet portion in which the cleaning sheet extends continuously or intermittently from at least a part of the plurality of k-deployment connecting portions toward the fixed end portion are connected. k The cleaning sheet according to any one of claims 3 to 7, further comprising an auxiliary connecting portion.
The laminated structure further includes a pair of base sheet portions arranged at both ends in the thickness direction.
The plurality of sheet portions are arranged side by side in the first direction between the pair of base sheet portions.
Each of the plurality of sheet portions is a bellows structure sheet having a bellows structure in which a plurality of folded portions are alternately folded in one direction in a first direction and another direction in the first direction. The cleaning sheet according to claim 1 or 2, wherein the sheet areas at both ends forming the bellows structure are connected to the pair of base sheet portions.
At least a part of the plurality of sheet portions is at least a part of the plurality of folded portions and is connected to at least a part of the plurality of folded portions of the sheet portions adjacent to the first direction among the plurality of sheet portions. The cleaning sheet according to claim 9.
A cleaning sheet that has a laminated structure with fixed ends and unfolded ends and is used by unfolding.
A plurality of sheet portions in which the laminated structure has a first direction, a second direction, and a thickness direction orthogonal to each other, and the laminated structure is arranged in order in the first direction. I have
The plurality of seat portions are connected at the fixed end portion by a fixing connecting portion extending in a direction along the first direction.
The cleaning sheet is configured so that the plurality of sheet portions are arranged in order by expanding the unfolded end portion.
The cleaning sheet, characterized in that.
The cleaning sheet according to claim 11, wherein at least a part of the plurality of sheet portions is connected to an adjacent sheet portion among the plurality of sheet portions by a deploying connecting portion at the unfolding end portion.
The cleaning sheet includes a plurality of laminated sheet-like members constituting the plurality of sheet portions, and the fixing connecting portion arranged at the center of the plurality of laminated sheet-like members. The cleaning sheet according to any one of claims 1 to 12, wherein the cleaning sheet is folded at the fixing connecting portion.
The cleaning sheet according to any one of claims 1 to 13, wherein at least a part of the plurality of sheet portions contains heat-sealing fibers, and the fixing connecting portion is a fusion portion.
The cleaning sheet according to any one of claims 1 to 14, wherein at least a part of the plurality of sheet portions contains water-retaining fibers, and the cleaning sheet is a wet type cleaning sheet.
The cleaning sheet according to any one of claims 1 to 15, wherein the cleaning sheet further includes a cleaning tool or a grip portion for the user to grip the cleaning sheet.
The cleaning sheet according to claim 16, wherein the openings of the grip portion are arranged in the sheet portions arranged at both ends in the thickness direction of the plurality of sheet portions.