WO2020183923A1 - Cleaning sheet - Google Patents

Abstract

The objective of the present disclosure is to provide a cleaning sheet that has properties for superior cleaning of a surface to be cleaned. The cleaning sheet of the present disclosure has the following configuration.　A cleaning sheet (1) characterized in that: fixed end parts (3) of a plurality of sheet portions (21, 31, 51, 61) are connected to base sheet portions (13a, 13b) by a fixed end connecting part (71) extending along a first direction (D1); the extension length of a free end part (5) of at least some of the plurality of sheet portions (21, etc.) in a direction parallel to the fixed end connecting part (71) is longer than the length of the fixed part (3) in the direction parallel to the fixed end connecting part (71); and the free end part (5) of at least some of the plurality of sheet portions (21, etc.) extends in a direction along the first direction (D1) while running back and forth in a second direction (D2), and is partially connected by a free end connecting part (73), which comprises a plurality of free end connecting portions (75a, 77a, 79a, 81a, 83a), to the free end part (5) of the sheet portion, among the plurality of sheet portions (21, etc.), that is adjacent in the second direction (D2).

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, it is an object of the present disclosure to provide a cleaning sheet having excellent cleanability of the surface to be cleaned.

The present disclosers include a cleaning sheet portion including a base sheet portion and a plurality of sheet portions, and also include a first direction and a second direction forming a circumferential direction of the first direction. A sheet, the plurality of sheet portions extending in a direction along a first direction, each of which has a fixed end portion and a free end portion, and each of the plurality of sheet portions. The fixed end portion of the above is connected to the base sheet portion by a fixed end connecting portion extending in a direction along the first direction, and at least a part of the plurality of sheet portions is connected to the fixed end connecting portion. The extension length of the free end portion in the parallel direction is configured to be longer than the length of the fixed end portion in the direction parallel to the fixed end connecting portion, and at least of the plurality of sheet portions. A part of the free end portion extends in the direction along the first direction while reciprocating in the second direction, and the free end connecting portion including the plurality of free end connecting portions makes it possible to use the free end connecting portion to reciprocate in the plurality of seat portions. We have found a cleaning sheet characterized in that it is partially connected to the free end of a sheet portion adjacent to the second direction.

The cleaning sheet disclosed in this disclosure is excellent in cleanability of the surface to be cleaned.

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 the cleaning sheet 1 according to the sixth 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 seventh embodiment. FIG. 25 is a diagram for explaining the cleaning sheet 1 according to the seventh embodiment. FIG. 26 is a diagram for explaining a handy cleaning tool 751 for the cleaning sheet 1 according to the seventh embodiment. FIG. 27 is a diagram for explaining the cleaning sheet 1 according to the eighth embodiment. FIG. 28 is a diagram for explaining a reciprocating structure. FIG. 29 is a diagram for explaining the seat portion.

[Definition]
・ "Undeployed state" and "deployed state" related to the cleaning sheet
In the present specification, each of the "non-deployed state" and the "deployed state" with respect to the cleaning sheet is a term used when the cleaning sheet can take two different states in principle.
Specifically, the "non-deployed state" means a state in which the cleaning sheet is not unfolded, which is a form taken during storage, etc., and the "unfolded state" means that the cleaning sheet is used for cleaning the surface to be cleaned. Means the state when used.
In the present specification, the cleaning sheet includes a sheet that does not take the "non-deployed state". In the cleaning sheet that does not take the "non-deployed state", the cleaning sheet is described in a state corresponding to the unfolded state even if there is no particular mention. Further, even if the cleaning sheet does not take the "non-deployed state", the state when it is used for cleaning the surface to be cleaned may be described as the "deployed state" from the viewpoint of easy understanding. ..

-"First direction", "Second direction", "Orthogonal direction" and "Thickness direction"
In the present specification, the "first direction" is divided into one direction in the first direction and the other direction in the first direction. The "second direction" is a direction constituting the circumferential direction of the first direction, and is divided into one direction in the second direction and another direction in the second direction. The "orthogonal direction" is a direction orthogonal to the first direction and is arranged on the base sheet portion. The "orthogonal direction" is divided into one direction in the orthogonal direction and the other direction in the orthogonal direction. The "thickness direction" is a direction orthogonal to the first direction and the orthogonal direction. The "thickness direction" is divided into one direction in the thickness direction and the other direction in the thickness direction.

-"Fixed end", "center part" and "free end" for multiple seat parts
In the present specification, the "fixed end portion", "central portion", and "free end portion" relating to a plurality of seat portions refer to intersections where each of the plurality of seat portions intersects an orthogonal plane orthogonal to the first direction. It is a term for partitioning.
The "free end portion" and the "fixed end portion" mean the end region on the surface to be cleaned side and the end region on the opposite side, respectively, at the intersection, and the "central portion". "" Means the area between the "free end" and the "fixed end".

In each of the plurality of sheet portions, the "fixed end portion", the "central portion" and the "free end portion" have a length ratio of preferably 40%: 20%: 40%. It means a region partitioned by a length ratio of more preferably 30%: 40%: 30%, and even more preferably a length ratio of 20%: 60%: 20%.
When at least a part of the plurality of sheet portions has a non-constant length of the intersecting portion in the first direction (when the position of the first direction is different and the length of the intersecting portion is different), The lengths of the "fixed end", "center" and "free end" are also not constant.
In addition, in this specification, the portion corresponding to the fixed end portion, the central portion and the free end portion of the adjacent sheet portion of the base sheet portion is referred to as the fixed end portion, the central portion and the free end portion of the base sheet portion, respectively. Refer to.

・ "Round-trip structure" for multiple seats
As used herein, the term "reciprocating structure" means a structure adopted by at least a part of a plurality of sheet portions. In the above-mentioned "reciprocating structure", the free end portion of the seat portion constituting the plurality of seat portions is one of the second directions (one direction in the second direction) in the direction along the first direction (preferably the first direction). It means reciprocating in the other direction (second direction and other directions) (preferably, reciprocating a plurality of times).

The reciprocating structure is not limited to the one in which the edge on the free 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 free end side of the sheet portion (for example, the th. Distance M from the first part 805 from the most second direction unidirectional D _{21 of} the first cycle 801 to the second part 807 from the most second direction unidirectional D _{21 of} the second cycle 803 adjacent to the first cycle 801. ) Means. Further, the wave height means the maximum length in the second direction (for example, the maximum length N of the first cycle 801 shown in FIG. 28) in a cycle having a reciprocating structure.
Further, in the reciprocating structure, the phase difference means that the reference point of the reciprocating structure (for example, the portion from one direction in the second direction) is defined between the plurality of seat portions (for example, two adjacent seat portions). It means that the position is deviated in the direction along the first direction (preferably the first 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".

・ "Cleaning sheet partial angle"
In the present specification, the "cleaning sheet partial angle" means the angle that the cleaning sheet portion of the cleaning sheet in the deployed state has in the second direction. For example, when the cleaning sheet includes a single cleaning sheet portion, the cleaning sheet portion angle means an angle formed by the base sheet portion sandwiching a plurality of sheet portions in between. When the base sheet portion is on a flat surface, the cleaning sheet portion angle is 180 °.
Further, for example, when the cleaning sheet includes a plurality of cleaning sheet portions, each of the plurality of cleaning sheet portions has a cleaning sheet portion angle.

-"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.
Increasing the redundancy tends to increase the wavelength, wave height, etc. of the reciprocating structure of the multiple sheet parts that make up the cleaning sheet, and the cleaning sheet part angle (more accurately, cleaning per sheet part). Seat part angle) 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 the present specification, the "direction parallel to the predetermined direction" means a direction in which the intersection angle with the predetermined direction is 5 ° or less.
Examples of the predetermined direction include a first direction, an orthogonal direction, a thickness direction, a second direction, and the like.

・ "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 one sheet portion is arranged inwardly from another sheet portion means that one sheet portion is farther from the base sheet portion than the other sheet portion. Similarly, the fact that one seat portion is located outside the other seat portion means that one seat portion is closer to the base seat portion than the other seat portion.

-"Outer surface" and "inner surface" for multiple seat parts
In the present specification, the "outer surface" and the "inner surface" relating to each of the plurality of sheet portions are the surfaces on the base sheet portion side (if there are a plurality of base sheet portions, the surface on the closest base sheet portion side). And the other side.

-The "extended length" of the free end and the "length" of the fixed end in the direction parallel to the fixed end connecting part.
In the present specification, the "extended length" of the free end in the direction parallel to the fixed end connecting portion is the "extended length" of the free end in a state where the free end is extended and the "reciprocating structure" described later is released. It means the length in the direction parallel to the fixed end connecting part.
In the present specification, the "length" of the fixed end portion in the direction parallel to the fixed end connecting portion means, as the word implies, the length of the fixed end portion in the direction parallel to the fixed end connecting portion.

Specifically, the present disclosure relates to the following aspects.
[Aspect 1]
A cleaning sheet including a base sheet portion and a cleaning sheet portion including a plurality of sheet portions, and also having a first direction and a second direction forming a circumferential direction of the first direction.
The plurality of seat portions extend in a direction along the first direction, and each of them has a fixed end portion and a free end portion.
Each of the fixed ends of the plurality of sheet portions is connected to the base sheet portion by a fixed end connecting portion extending in a direction along the first direction.
The extension length of the free end portion in the direction parallel to the fixed end 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 fixed end connecting portion. Is configured to be longer,
At least a part of the free end portions of the plurality of seat portions extends in a direction along the first direction while reciprocating in the second direction, and the free end connecting portion including the plurality of free end connecting portions provides the above. Of the plurality of seat portions, the seat portions adjacent to the second direction are partially connected to the free end portion.
The above-mentioned cleaning sheet, which is characterized in that.

In the cleaning sheet, in the cleaning sheet portion constituting the cleaning sheet, the fixed end portions of the plurality of sheet portions are connected to the base sheet portion by the fixed end connecting portions extending in the direction along the first direction. When at least a part of the plurality of sheet portions is in a direction parallel to the fixed end connecting portion and the extension length of the free end portion is parallel to the fixed end connecting portion, the fixed end portion A "free end extension length structure" configured to be longer than the length, and at least a part of the free ends of the plurality of seat portions reciprocate alternately in one direction in the second direction and in the other direction in the second direction. The reciprocating structure is provided with a "reciprocating structure" and a "partially connected structure" in which the reciprocating structure is partially connected to a seat portion adjacent to the second direction.

Therefore, for example, when the surface to be cleaned is flat, the plurality of sheet portions are caused by the above-mentioned "free end extension length structure", "reciprocating structure", and "partially connected structure". When it comes into contact with the surface to be cleaned, it is irregularly deformed to expose a region having a plurality of sheet portions (hereinafter referred to as "first region"), and the first region comes into contact with the surface to be cleaned. The first area can clean the surface to be cleaned.

When the cleaning sheet is separated from the surface to be cleaned, the cleaning sheet has the original shape due to the restoring force of the plurality of sheet portions due to the reciprocating structure and the partial connection thereof. (Hereinafter, returning 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 plurality of sheet portions are 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 area of a plurality of sheet portions and uses the new area 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, the cleaning sheet is excellent in the cleanability of the surface to be cleaned (hereinafter, the cleaning sheet exposes a new area of a plurality of sheet portions, which means "new area exposure". May be called).
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 plurality of sheet portions exhibit new area exposure and the surface to be cleaned can be cleaned. ..

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 plurality of sheet portions follow the shape of the three-dimensional surface of the surface to be cleaned. In addition, when the cleaning sheet is moved, the cleaning sheet can exhibit its softness and shape recovery property and follow the shape of the surface to be cleaned. 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 cleanability of the surface to be cleaned.

When the plurality of sheet portions do not have the above-mentioned free end extension length structure, for example, the extension length of the free end portion is configured to be the same as the length of the fixed end portion. If so, the plurality of sheet portions are less likely to be irregularly deformed when they come into contact with the surface to be cleaned, and tend to be less likely to exhibit the above-mentioned new region exposure.

[Aspect 2]
The first aspect of the embodiment, wherein the plurality of sheet portions include an integrated fixed end portion in which the fixed end portions thereof are integrated, and the integrated fixed end portion is connected to the base sheet portion. Cleaning sheet.

In the above cleaning sheet, since a plurality of sheet portions are fixed to the base sheet portion via the integrated fixed end, the portion of the base sheet portion that is not connected to the integrated fixed end is excellent in softness and is a cleaning sheet. However, it is easily deformed according to the surface to be cleaned, and the surface to be cleaned is less likely to be damaged.

[Aspect 3]
The base sheet portion is divided into a base sheet first portion and a base sheet second portion by the integrated fixed end portion, and the cleaning formed by the base sheet first portion and the base sheet second portion. Cleaning the sheet portion The cleaning sheet according to aspect 2, wherein the sheet portion angle is 150 ° or more and less than 360 °.

In the above-mentioned cleaning sheet, since the partial angle of the cleaning sheet is within a predetermined range, a wide surface to be cleaned can be easily cleaned by using the cleaning sheet, and the above-mentioned cleaning sheet is excellent in cleanability of the surface to be cleaned.

[Aspect 4]
The cleaning sheet according to any one of aspects 1 to 3, further comprising a cleaning tool or a gripping portion for the user to grip the base sheet portion.

Since the cleaning sheet is provided with a predetermined grip portion, the shape of the cleaning sheet is easily maintained when the cleaning sheet is used, and the cleaning sheet is excellent in cleanability of the surface to be cleaned.

[Aspect 5]
The base sheet portion is divided into a base sheet first portion and a base sheet second portion by the integrated fixed end portion, and the cleaning formed by the base sheet first portion and the base sheet second portion. Cleaning of the seat portion The seat portion angle is 360 °, and a cleaning tool or a grip portion for the user to grip is formed between the first portion of the base sheet and the second portion of the base sheet. Cleaning sheet described in.

The cleaning sheet has a cleaning sheet portion angle of 360 °, and a cleaning tool or a grip portion for the user to grip is formed between the first portion of the base sheet and the second portion of the base sheet. .. Therefore, the user inserts the cleaning tool into the grip portion, or the user inserts a part of the body (for example, hands, legs, etc.) into the grip portion, and uses the cleaning sheet to use a cleaning sheet to widen the cleaning surface. The cleaning sheet can be easily cleaned, and the cleaning sheet is excellent in cleanability of the surface to be cleaned.

[Aspect 6]
The cleaning sheet according to aspect 1, wherein the cleaning sheet includes a plurality of the cleaning sheet portions, and the plurality of cleaning sheet portions are connected so that the base sheet portions face each other.

The cleaning sheet includes a plurality of cleaning sheet parts, and the base sheet parts are connected to each other. Therefore, the plurality of cleaning sheet portions expand in the second direction, that is, the cleaning sheet can increase the cleaning sheet portion angle, and the cleaning sheet can be used to easily clean a wide cleaning surface. The cleaning sheet is excellent in cleanability of the surface to be cleaned.

[Aspect 7]
The cleaning sheet according to aspect 6, wherein a cleaning tool or a grip portion for the user to grip is provided between the base sheet portions.

Since the cleaning sheet includes a predetermined grip portion between the base sheet portions, the user inserts the cleaning tool into the grip portion, or the user holds a part of the body of the grip portion. A cleaning sheet can be used by inserting it into the cleaning sheet, and the cleaning sheet is excellent in cleanability of the surface to be cleaned.

[Aspect 8]
The cleaning sheet according to aspect 7, wherein the grip portion includes an insertion port portion that is open in the first direction and extends in a direction along the first direction.

In the cleaning sheet, since the grip portion includes an insertion port portion that is open in the first direction and extends in the first direction, the cleaning tool or a part of the user's body is a cleaning sheet. Will be arranged in the first direction of. Therefore, when the cleaning tool is inserted into the grip portion and the cleaning sheet is used, the user can easily insert the cleaning tool into the grip portion, and when cleaning with the cleaning sheet, the cleaning tool comes into contact with the surface to be cleaned. It becomes difficult to do. In addition, when the user inserts a part of the body into the grip and uses the cleaning sheet, the user can easily insert the part of the body into the grip and use it when cleaning with the cleaning sheet. It becomes difficult for a part of the person's body to come into contact with the surface to be cleaned.

[Aspect 9]
The cleaning sheet according to aspect 8, wherein at least a part of the plurality of cleaning sheet portions includes an extension portion in which the insertion port portion extends away from the plurality of sheet portions in a first direction. ..

The cleaning sheet has a predetermined extension. Therefore, when the cleaning tool is inserted into the grip portion and the cleaning sheet is used, the user can easily insert the cleaning tool into the grip portion, and when the user inserts a part of the body into the grip portion and uses the cleaning sheet. It is easy for the user to insert a part of the body into the grip portion.

[Aspect 10]
In each of the plurality of cleaning sheet portions, the plurality of sheet portions include an integrated fixed end portion in which the fixed end portions thereof are integrated, and the integrated fixed end portion is the base sheet portion. The cleaning sheet according to any one of aspects 6 to 9, which is connected to the cleaning sheet.

In the above cleaning sheet, in each of the plurality of cleaning sheet portions, since the plurality of sheet portions are fixed to the base sheet portion via the integrated fixed end, they are not connected to the integrated fixed end of the base sheet portion. The portion is excellent in softness, and the cleaning sheet is easily deformed according to the surface to be cleaned, and the surface to be cleaned is less likely to be damaged.

[Aspect 11]
One of aspects 1 to 10, wherein a cleaning tool or a grip portion for the user to grip is provided between the two adjacent sheet portions of the base sheet portion and the plurality of sheet portions. The cleaning sheet described in item 1.

Since the cleaning sheet includes a predetermined grip portion, the user inserts the cleaning tool into the grip portion, or the user inserts a part of the body into the grip portion to insert the cleaning sheet. It can be used, and the cleaning sheet is excellent in cleanability of the surface to be cleaned.

[Aspect 12]
The cleaning sheet according to any one of aspects 1 to 11, wherein the cleaning sheet is configured to be in a non-deployed state.

Since the cleaning sheet is configured so that it can be in a non-deployed state, the cleaning sheet can be made compact before or after use.

[Aspect 13]
The cleaning sheet according to any one of aspects 1 to 12, wherein at least a part of the plurality of sheet portions is alternately folded back in a direction along a first direction by a plurality of folded portions.

Since at least a part of the plurality of sheet parts of the cleaning sheet is folded back, the folded sheet part can be expanded in the second direction, and by extension, the cleaning sheet part angle can be increased with a small number of sheet parts. Can be made larger.

[Aspect 14]
At least a part of the plurality of sheet portions is a plurality of first tops protruding in one of the second directions, each of which has a first top surface, and the other in the second direction. A plurality of protruding second tops, each of which has a second top surface, are provided, and the plurality of free-end connecting portions are the first top surface and the second top surface, respectively. The cleaning sheet according to any one of aspects 1 to 13, which is arranged in.

In the cleaning sheet, since a plurality of free end connecting portions constituting the free end connecting portion are arranged on each of the first top surface and the second top surface, the cleaning sheet has an opening forming a three-dimensional structure. In addition to being able to be increased, a plurality of sheet portions can be developed in the second direction, and thus the cleaning sheet portion angle can be further increased with a small number of sheet portions.

[Aspect 15]
In the sheet portion to which the first top surface and the second top surface belong, the total area of the plurality of first top surfaces is 50% or more and 100% or less of the area of the sheet portion, and the plurality of second tops. The cleaning sheet according to aspect 14, wherein the total area of the surface is 50% or more and 100% or less of the area of the sheet portion.

In the cleaning sheet, since the total area of the first top surface and the total area of the second top surface are within a predetermined range, there is a high degree of freedom in arranging a plurality of free end connecting portions constituting the free end connecting portion. The cleaning sheet part angle can be increased.
Further, when the connecting portion is an adhesive portion by an adhesive, the adhesive is less likely to be present on a place other than the first top surface and the second top surface due to movement, misalignment, etc. of the adhesive.

[Aspect 16]
A cleaning sheet including a base sheet portion and a cleaning sheet portion including a plurality of sheet portions, and also having a first direction and a second direction forming a circumferential direction of the first direction.
The plurality of seat portions extend in a direction along the first direction, and each of them has a fixed end portion and a free end portion.
Each of the fixed ends of the plurality of sheet portions is connected to the base sheet portion by a fixed end connecting portion extending in a direction along the first direction.
The extension length of the free end portion in the direction parallel to the fixed end 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 fixed end connecting portion. Is configured to be longer,
At least a part of the free end portions of the plurality of sheet portions is connected to the free end portion of the sheet portion adjacent to the second direction among the plurality of sheet portions by the free end connecting portion. Has a reciprocating structure,
The above-mentioned cleaning sheet, which is characterized in that.
The cleaning sheet has the same effect as the cleaning sheet according to the first aspect.

[Aspect 17]
The cleaning sheet according to aspect 16, wherein the two sheet portions connected by the free end connecting portion have the reciprocating structure different from each other.
In the cleaning sheet, since the two sheet portions connected by the free end connecting portion have different reciprocating structures from each other, the cleaning sheet is excellent in new area exposure and cleaning of the surface to be cleaned.

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 is a cleaning sheet used by being attached to the 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 can form an undeployed state and an unfolded state. Specifically, a single cleaning sheet portion 17 in the unfolded state and a single laminated structure 9 in the undeployed state. Can be formed.

Cleaning the deployed state the seat 1 (the cleaning sheet portion 17) has a first direction D _1, and the orthogonal direction D _C and the thickness direction T, and a second direction D ₂ constituting the first circumferential direction D ₁ .. The first direction D ₁ is the first direction one-way D ₁₁ are opposite to each other, is partitioned into a first direction other direction D _12, the orthogonal direction D _C is orthogonal directions one direction are opposite to each other and D _C1, is divided into an orthogonal direction other direction D _C2, the thickness direction T is a thickness direction direction T ₁ in the opposite direction to each other, is partitioned into a thickness direction other direction T _2. The second direction D ₂ is divided into a second direction unidirectional D ₂₁ and a second direction other direction D ₂₂ which are opposite to each other. Incidentally, the second direction D ₂ is coincident with the perpendicular direction D _C in a plan view.

The cleaning sheet 1 (laminated structure 9) in the undeployed state has a first so that the cleaning sheet 1 (cleaning sheet portion 17) in the unfolded state and the base sheet second portion 13b, which will be described later, have the same direction. direction D _1, the orthogonal direction D _C and the thickness direction T, and has a second direction D _2.

In the undeveloped state, the laminated structure 9 has a fixed end portion 3 and a free end portion 5, and each of the fixed end portion 3 and the free end portion 5 extends in a direction parallel to the first direction D ₁ . fixed end 3 and a free end portion 5 is sandwiched between the central portion 7, they are spaced apart in the perpendicular direction D _C.

The cleaning sheet 1 in the non-deployed state (multilayer structure 9, see Figure 5) is an axis fixed end 3, by developing the free end portion 5 in the second direction D _2, the cleaning sheet 1 in the unfolded state ( The cleaning sheet portion 17 (see FIGS. 1 to 4) is formed, and the cleaning sheet 1 in the deployed state is used for cleaning the surface to be cleaned. In the cleaning sheet 1 according to the first embodiment, the cleaning sheet portion 17 has a cleaning sheet portion angle of about 180 ° in the unfolded state. In other words, the cleaning sheet 1 (cleaning sheet portion 17) in the unfolded state can be folded in the second direction D ₂ to form the cleaning sheet 1 (laminated structure 9) in the undeployed state.

In the laminated structure 9, 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.

The first seat portion 21, the second seat portion 31, the third seat portion 51, and the fourth seat portion 61 are free in the direction parallel to the fixed end 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 fixed end 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 part 31, the folded portion of the plurality extending in the orthogonal direction D _C (not denoted by reference numerals), are folded alternately in the first direction D _1, 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, and one in the other direction in the thickness direction. A plurality of second seat portions, second top portions 35, which project to T ₂ , each of which includes 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 .
In the cleaning sheet 1 in the unfolded state, the plurality of second Ω ₁ structures 37 protruding in one direction T ₁ in the thickness direction and the plurality of second Ω ₂ structures 39 protruding in the other direction T ₂ in the thickness direction are , Protruding in the second direction unidirectional D ₂₁ and the second direction other direction D ₂₂ , respectively.

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 fixed end 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 free 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 free end portion 5 in the direction parallel to the fixed end connecting portion 71 (first direction D ₁ ) is parallel to the fixing end connecting portion 71 (first direction). It is longer than the length of the fixed end 3 in the one 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 .
In the cleaning sheet 1 in the deployed state, the plurality of third Ω ₁ structures 53 projecting in one direction T ₁ in the thickness direction and the plurality of third Ω ₂ structures 55 projecting in the other direction T ₂ in the thickness direction are , Protruding in the second direction unidirectional D ₂₁ and the second direction other direction D ₂₂ , respectively.

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 free end portion 5 in the direction parallel to the fixed end connecting portion 71 (first direction D ₁ ) is the fixed end 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 .
In the cleaning sheet 1 in the unfolded state, the plurality of first Ω ₁ structures 23 protruding in one direction T ₁ in the thickness direction and the plurality of first Ω ₂ structures 25 protruding in the other direction T ₂ in the thickness direction are , Protruding in the second direction unidirectional D ₂₁ and the second direction other direction D ₂₂ , respectively.

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 free end portion 5 in the direction parallel to the fixed end connecting portion 71 (first direction D ₁ ) is the fixed end 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 .
In the cleaning sheet 1 in the deployed state, the plurality of fourth Ω ₁ structures 63 projecting in one direction T ₁ in the thickness direction and the plurality of fourth Ω ₂ structures 65 projecting in the other direction T ₂ in the thickness direction are , Protruding in the second direction unidirectional D ₂₁ and the second direction other direction D ₂₂ , respectively.

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 free end portion 5 in the direction parallel to the fixed end connecting portion 71 (first direction D ₁ ) is the fixed end 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 9 has a plurality of sheet portions (from the grip portion forming sheet first portion 11a to the grip portion forming sheet second portion 11b) including the base sheet first portion 13a and the base sheet second portion 13b at the fixed end portion 3. It is provided with a fixed end connecting portion 71 composed of a fused portion formed by fusing (up to). The fixed end connecting portion 71 extends in 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 9 is connected at the free end portion 5 by a free end connecting portion 73 formed of an adhesive. The free end connecting portion 73 is a second free end connecting portion that connects the first free end 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 free end connecting portion 79 connecting the third seat portion 51 and the fourth seat portion 61, and a fourth free end connecting portion 81 connecting the fourth seat portion 61 and the base sheet second portion 13b. It includes a fifth free end connecting portion 83 that connects the first portion 13a of the base sheet and the first sheet portion 21.

The first free end connecting portion 75 connecting the first seat portion 21 and the second seat 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 seat portion 31. It is provided with six first free end connecting portions 75a arranged (center of first direction D ₁ ). The six first free end connecting portions 75a also include two first free end connecting portions 75a arranged at both ends of the first direction D ₁ of the first sheet portion 21.

The second free end connecting portion 77 connecting 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 free end 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 free end connecting portion 77a has a plurality of second free end 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 free end connecting portions 75a and the five second free end 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 free end connecting portions 75a and the five second free end 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 free end connecting portion 79 connecting the third seat portion 51 and the fourth seat portion 61 is the second top surface (reference numeral) of each of the plurality of third Ω ₂ structures 55 of the third seat portion 51. It is provided with six third free-end connecting portions 79a arranged in the center (not attached) (center of first direction D ₁ ). The six third free end connecting portions 79a include two third free end connecting portions 79a arranged at both ends of the first direction D ₁ of the third sheet portion 51. The six third free end connecting portions 79a of the third free end connecting portion 79 are arranged so as to overlap the six first free end connecting portions 75a of the first free end connecting portion 75 in the thickness direction T. Has been done.

Therefore, the six third free end connecting portions 79a of the third free end connecting portion 79 are the five second free end connecting portions 77a of the second free end 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 free end connecting portions 79a of the third free end connecting portion 79 are arranged so as not to overlap with the five second free end connecting portions 77a of the second free end connecting portion 77 in the thickness direction T. Has been done.

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

The fifth free end connecting portion 83 that connects the first portion 13a of the base sheet 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 free end connecting portions 83a arranged at the center of the (center of the first direction D ₁ ). The five fifth free end connecting portions 83a include two fifth free end connecting portions 83a arranged at both ends of the first direction D ₁ of the first sheet portion 21. The five fourth free end connecting portions 81a of the fourth free end connecting portion 81 are arranged so as to overlap the five fifth free end connecting portions 83a of the fifth free end connecting portion 83 in the thickness direction T. Has been done. The five fifth free end connecting portions 83a of the fifth free end connecting portion 83 except for the two fifth free end 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 free end connecting portions 75a of the first free end 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 provided with a cleaning sheet attachment portion of the handy cleaning tool 251. The fusing portion 15 for the grip portion is formed so as to form the grip portion 91 for gripping the 253a and the cleaning sheet mounting portion 253b. 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 in a plurality of sheet portions (that is, the first sheet portion 21, the second sheet portion 31). , The third seat portion 51 and the fourth seat portion 61) are provided with a pair of unfolding grip portions 85 formed by forming them longer on the D ₁₂ side (grip portion 91 side) in the first direction and other directions. There is. 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 to form a pair of unfolding grips 85. Therefore, it is easy for the user to grip the pair of deploying grip portions 85 and deploy the cleaning sheet 1.

The pair of unfolding grips 85 of the cleaning sheet 1 (laminated structure 9) in the undeployed state are gripped, and the second direction D _{2 is} specifically so as to keep the base sheet first portion 13a away from the base sheet second portion 13b. When expanded in the second direction and one direction D ₂₁ , the first sheet portion 21, the second sheet portion 31, the third sheet portion 51, the fourth sheet portion 61, and the base connected to the base sheet first portion 13a. The second portion 13b of the sheet unfolds in the second direction D ₂ in order.

Next, in the cleaning sheet 1 (cleaning sheet portion 17) in the unfolded state, the first sheet portion 21 has a plurality of Ω structures and the first sheet portion 21 is connected to the first free end in accordance with the above unfolding. At the portion 75a, it will be pulled in the second direction one direction D ₂₁ or the second direction other direction D ₂₂ . Therefore, in the first direction one direction D ₁₁ (first direction other direction D ₁₂ ), the free end portion 5 of the first sheet portion 21 alternates with the second direction one direction D ₂₁ and the second direction other direction D _22. It has a first reciprocating structure 93 that reciprocates.

Similarly, in the cleaning sheet 1 (cleaning sheet portion 17) 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 unidirectional D ₁₁ (or the first direction). In the other direction D ₁₂ ), the free end 5 of the second seat portion 31, the third seat portion 51, and the fourth seat portion 61 alternately reciprocates in the second direction one direction D ₂₁ and the second direction other direction D _22. It has a second reciprocating structure 95, a third 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.

Then, the laminated sheet 209, passes through the center of the orthogonal direction D _C, fused along a first direction center line CL ₁ 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 free end connecting portion 75 to the fifth free end connecting portion 83 using an adhesive. Sheet 1 is formed.

The fused portion 211 constitutes the fixed end connecting portion 71. Further, the first non-woven fabric 201 constitutes a second sheet portion 31 and a third sheet portion 51 with a fused portion 211 (fixed end 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 fused portion 211 (fixed end connecting portion 71) interposed therebetween. The base sheet 205 constitutes the base sheet first portion 13a and the base sheet second portion 13b with the fused portion 211 (fixed end 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 (fixed end 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 is a cleaning sheet used by being attached to the handy cleaning tool 251. Further, the cleaning sheet 1 according to the second 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 17 in the unfolded state and a single laminated structure 9 in the undeployed state. Can be formed. Further, in the cleaning sheet 1 according to the second embodiment, the cleaning sheet portion 17 has a cleaning sheet portion angle of about 180 ° in the deployed state.

Cleaning the deployed state the seat 1 (the cleaning sheet portion 17) and the cleaning sheet 1 in the non-deployed state (the laminated structure 9) are orthogonal to each other, the first direction D _1, the orthogonal direction D _C and the thickness direction T, and the It has two directions D ₂ . Cleaning sheet 1 (the cleaning sheet portion 17) and the first direction D ₁ in the cleaning sheet 1 (laminated structure 9) in the non-deployed state in the deployed state, the orthogonal direction D _C and the thickness direction T, and the second direction D ₂ is 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 9. 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 free end portion 5 in a direction parallel to the fixed end connecting portion 71 (first direction D ₁ ). ₁ and the length L ₂ of the fixed end 3 in the direction parallel to the fixed end connecting portion 71 (first direction D ₁ ), and the extension length L ₁ of the free end 5 is the fixed end. 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 free end portion 5 in a direction parallel to the fixed end 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 fixed end 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 deploying grips 85 formed by forming a long portion on the D ₁₂ 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 9 is connected at the free end portion 5 by a free end 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 9 is large, the cleaning sheet 1 includes n sheet portions (n) including the nth sheet portion when the character expression is used. = 1 to 18), a base sheet first portion 13a, and a base sheet second portion 13b.

The free end connecting portion 73 includes an nth free end 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 free end connecting portion 141 connecting 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 free end connecting portion 143, the third free end connecting portion 145 connecting the third seat portion 105 and the fourth seat portion (not shown), the fifteenth seat portion (not shown) and the sixteenth seat portion. The 15th free end connecting portion 147 connecting the 131, the 16th free end 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 free end connecting portion 151 is shown.

Further, the free end connecting portion 73 connects the 18th free end 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 free end connecting portion 155.

The nth free end connecting portion (n = 1 to 19) is a plurality of nth free end connecting portions intermittently arranged in the first direction D ₁ , specifically, repeatedly arranged separated by a predetermined distance L. (N = 1 to 19) is provided. In FIG. 11, for simplification of the description, only the first free end connecting portion 141a to the third free end connecting portion 145a and the fifteenth free end connecting portion 147a to the 19th free end connecting portion 155a are shown. There is.

Among the nth free end connecting portions (n = 1 to 18), those satisfying the requirement of n = 2k-1 (k = 1 to 9), a plurality of nth free end connecting portions are arranged in the thickness direction T. Arranged to match. Further, among the nth free end connecting portions (n = 1 to 18), those satisfying the requirement of n = 2k (k = 1 to 9) and the 19th free end connecting portion 155 have a plurality of nth free ends. The end connecting portions (n = 1 to 19) are arranged so as to coincide with the thickness direction T.
Further, among the nth free end connecting portions (n = 1 to 18), those satisfying the requirement of n = 2k-1 (k = 1 to 9) and the nth free end connecting portion (n = 1 to 18). Of these, those satisfying the requirement of n = 2k (k = 1 to 9) and the 19th free end 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 free end connecting portions (n = 1 to 19) of the nth free end connecting portion (n = 1 to 19), and from the free 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 (cleaning sheet portion 17) in the unfolded state, the nth sheet portion (n = 1 to 18) is the second direction unidirectional D ₂₁ and the second direction other direction D. _It will have an nth reciprocating structure (n = 1 to 18) that alternately reciprocates in ₂₂ . 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 (cleaning sheet portion 17) in the unfolded state, each of the nth sheet portions (n = 1 to 18) reciprocates alternately in the second direction unidirectional D ₂₁ and the second direction other direction D ₂₂ . An n reciprocating structure (n = 1 to 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 free 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 free end portions 5 of the first sheet portion 101 to the 18th sheet portion 135 are in the direction parallel to the fixed end 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 the 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 free end connecting portion (n = 1 to 1 to 19) is provided as the surface to be cleaned is cleaned. Even when the plurality of nth free end 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 is a cleaning sheet used by being attached to the 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 can form an undeployed state and an unfolded state. Specifically, a single cleaning sheet portion 17 in the unfolded state and a single laminated structure 9 in the undeployed state. Can be formed. Further, in the cleaning sheet 1 according to the third embodiment, the cleaning sheet portion 17 has a cleaning sheet portion angle of about 180 ° in the deployed state.

Cleaning the deployed state the seat 1 (the cleaning sheet portion 17) are orthogonal to each other, a first direction D _1, the orthogonal direction D _C and the thickness direction T, and the second direction D _2. The first direction D ₁ in the cleaning sheet 1 (the cleaning sheet portion 17) in the deployed state, the orthogonal direction D _C and the thickness direction T, and the second direction D ₂ are the same as those of the first embodiment. The cleaning sheet 1 (laminated structure 9) in the undeployed state has a first direction D so that the cleaning sheet 1 (cleaning sheet portion 17) in the unfolded state and the base sheet second portion 301b, which will be described later, have the same direction. _1, the orthogonal direction D _C and the thickness direction T, and has a second direction D _2.

The laminated structure 9 has a fixed end portion 3 and a free end portion 5, and each of the fixed end portion 3 and the free end portion 5 extends in a direction parallel to the first direction D _1, and the fixed end portion 3 and the free end portion 5 are extended. The free end portion 5 is arranged so as to be separated from each other in the second direction D ₂ with the central portion 7 in between.

In the laminated structure 9, 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, the third sheet portion 307, and the fourth sheet portion. It is composed of a 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.

Gripping sheet 311, than the first sheet portion 303 to fourth sheet portion 309, perpendicular to the direction D _C, in particular has long been constructed in the orthogonal direction other direction D _C2, the first sheet portion 303 to the fourth A portion extending in the other direction _DC2 in the orthogonal direction from the seat portion 309 constitutes a grip portion 313 to be 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 free end portion 5 in the direction parallel to the fixed end connecting portion 71 (first direction D ₁ ) is in the direction parallel to the fixed end connecting portion 71 (first direction). It is longer than the length of the fixed end 3 in D ₁ ).

The laminated structure 9 includes a fixed end connecting portion 71 composed of a fused portion formed by fusing the base sheet first portion 301a to the base sheet second portion 301b at the fixed end portion 3. The fixed end connecting portion 71 extends in the first direction D ₁ and connects the base sheet first portion 301a to the base sheet second portion 301b.

The laminated structure 9 is connected at the free end portion 5 by a free end connecting portion (not shown) composed of an adhesive. Since the free end connecting portion (not shown) in the cleaning sheet 1 according to the third embodiment is the same as the free end connecting portion 73 in the cleaning sheet 1 according to the first embodiment, the description thereof will be omitted.

The grip portion 313 of the cleaning sheet 1 in the undeployed state is gripped, and the base sheet first portion 301a is moved away from the base sheet second portion 301b in the second direction D ₂ , specifically, in the second direction unidirectional D ₂₁ . When unfolded, the first sheet portion 303, the second sheet portion 305, the third sheet portion 307, the fourth sheet portion 309, and the base sheet second portion 301b connected to the base sheet first portion 301a are second in order. Deploy in direction D ₂ , specifically in second direction unidirectional D ₂₁ .

Next, in the cleaning sheet 1 in the unfolded state, with the above unfolding, the first sheet portion 303 becomes the free end portion 5 of the first sheet portion 303 in the first direction one direction D ₁₁ (first direction other direction D ₁₂ ). Has a first reciprocating structure 315 that alternately reciprocates in the second direction one direction D ₂₁ and the second direction other direction D ₂₂ .

Similarly, in the cleaning sheet 1 in the unfolded 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 reciprocating structure 317 in which the free end portion 5 of the second seat portion 305, the third seat portion 307, and the fourth seat portion 309 alternately reciprocates in the second direction one direction D ₂₁ and the second direction other direction D _22. , Has a third 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 free end portion 5 in the direction parallel to the fixed end connecting portion 71 (first direction D ₁ ) is , Longer than the length of the fixed end portion 3 in the direction parallel to the fixed end 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 is a cleaning sheet used by being attached to the floor cleaning tool 351. Further, the cleaning sheet 1 according to the fourth embodiment is a wet type cleaning sheet containing a chemical solution. The cleaning sheet 1 can form a non-deployed state and a deployed state. Specifically, the cleaning sheet 1 has two cleaning sheet portions (first cleaning sheet portion 415 and second cleaning sheet portion 417) in the deployed state. , Two laminated structures (first laminated structure 401 and second laminated structure 403) in the undeveloped state can be formed. Further, in the cleaning sheet 1 according to the fourth embodiment, each of the first cleaning sheet portion 415 (first laminated structure 401) and the second cleaning sheet portion 417 (second laminated structure 403) is about 180 ° in the unfolded state. The cleaning sheet has a partial angle.

Cleaning in a deployed state sheet 1 (the first cleaning sheet portion 415 and the second cleaning sheet portions 417) are orthogonal to each other, the first direction D _1, the orthogonal direction D _C and the thickness direction T, and the second direction D ₂ Are common. The first direction D ₁ in the cleaning sheet 1 in the unfolded state, the orthogonal direction D _C and the thickness direction T, and the second direction D ₂ are the same as those of the first embodiment.

The cleaning sheet 1 (first laminated structure 401 and second laminated structure 403) in the undeployed state includes the cleaning sheet 1 (first cleaning sheet portion 415 and second cleaning sheet portion 417) in the unfolded state and the base sheet described later. as the second portion 405b and the fourth base sheet portion 421b have the same direction and has a first direction D _1, the orthogonal direction D _C and the thickness direction T, and the second direction D _2.

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 third base sheet portion 421a, the third sheet portion 423, the fourth sheet portion 425, and the fourth base sheet portion. It is composed of 421b. The third base sheet portion 421a and the fourth base sheet 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 free end portion 429, and each of the first fixed end portion 427 and the first free end portion 429 has a first direction D. It extends in a direction parallel to _1, and the first fixed end portion 427 and the first free end portion 429 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 free end portion 437, and each of the second fixed end portion 435 and the second free end portion 437 is the first. The second fixed end portion 435 and the second free end portion 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 third base sheet portion 421a and the fourth base sheet 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 free end portion (not shown) in the direction parallel to the first fixed end connecting portion 441 described later (first direction D ₁ ) is the first fixed end 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 free end portion (not shown) in the direction parallel to the first fixed end connecting portion 441 (first direction D ₁ ) is the first fixed end 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 fixed end 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 fixed end connecting portion 441 extends in 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 free end portion 429 by a free end connecting portion 453 composed of an adhesive. Specifically, the free end connecting portion 453 is composed of a first free end connecting portion 455, a second free end connecting portion 457, and a third free end connecting portion 459. The first free end connecting portion 455 is located at the center of each top surface (unsigned) of the eight first Ω ₂ structures 447 of the first sheet portion 407, and the eight th of the second sheet portion 409. It is located 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 free end 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 free end connecting portion 459 is arranged at 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 fixed end connecting portion 443 and a free end connecting portion (not marked). The second fixed end connecting portion 443 and the free end connecting portion (not marked) in the second laminated structure 403 are the first fixed end connecting portion 441 and the free end connecting portion 453 in the first laminated structure 401, respectively. Since the same is true, the description thereof will be omitted.

When the grip portion 413 of the cleaning sheet 1 in the undeployed state is gripped and deployed in the second direction D ₂ , specifically, the second direction unidirectional D ₂₁ , the first laminated structure 401 and the second laminated structure 403 are The first cleaning sheet portion 415 and the second cleaning sheet portion 417 are formed, respectively.

In the cleaning sheet 1 in the unfolded state, the first free end portion 429 of the first sheet portion 407 of the first cleaning sheet portion 415 and the first free end portion 429 of the second sheet portion 409 are respectively one in the first direction. It has a first reciprocating structure 461 and a second reciprocating structure 463 that alternately reciprocate in the second direction one direction D ₂₁ and the second direction other direction D ₂₂ in the direction D ₁₁ (first direction other direction D ₁₂ ). .. Further, the second free end portion 437 of the third sheet portion 423 of the second cleaning sheet portion 417 and the second free end portion 437 of the fourth sheet portion 425 are in the first direction and one direction D ₁₁ (first direction and others). In the direction D ₁₂ ), it has a third reciprocating structure 465 and a fourth reciprocating structure 467 that alternately reciprocate in the second direction unidirectional D ₂₁ and the second direction other direction D ₂₂ .

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 and 21 are diagrams 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 surface and the flat side of the cleaning sheet 1 in the unfolded state. FIG. 21 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 fifth embodiment is a cleaning sheet used by being attached to a handy cleaning tool (not shown). Further, the cleaning sheet 1 according to the fifth 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 501 in the unfolded state and a single laminated structure 503 in the undeployed state. Can be formed. In the cleaning sheet 1 according to the fifth embodiment, the cleaning sheet portion 501 has a cleaning sheet portion angle of about 180 ° in the deployed state.

Cleaning the deployed state the seat 1 (the cleaning sheet part 501) are orthogonal to each other, a first direction D _1, the orthogonal direction D _C and the thickness direction T, and the second direction D _2. In the cleaning sheet 1 (the cleaning sheet part 501) in the deployed state, the first direction D _1, the orthogonal direction D _C and the thickness direction T, and the second direction D ₂ are the same as those of the first embodiment. The cleaning sheet 1 (laminated structure 503) in the undeployed state has a first direction D so that the cleaning sheet 1 (cleaning sheet portion 501) in the unfolded state and the second portion 505b of the base sheet, which will be described later, have the same direction. _1, the orthogonal direction D _C and the thickness direction T, and has a second direction D _2.

The cleaning sheet 1 according to the fifth embodiment has the base sheet first portion 505a, the first sheet portion 507, the second sheet portion 509, the third sheet portion 511, the fourth sheet portion 513, and the fifth sheet portion in the undeployed state. 515, 6th sheet part 517, 7th sheet part 519, 8th sheet part 521, 9th sheet part 523, 10th sheet part 525, 11th sheet part 527, 12th sheet part 529, 13th sheet part 531 It has a laminated structure 503 in which a total of 16 sheet portions, a 14th sheet portion 533 and a base sheet second portion 505b, are laminated.

The base sheet first portion 505a and the base sheet second portion 505b are composed of an integral base sheet 505, and the base sheet first portion 505a and the base sheet second portion 505b have an integral base sheet 505. It is partitioned by the 1st direction center line CL ₁ . The first direction center line CL ₁ is a virtual line extending in the first direction D ₁ through the center of the second direction D ₂ in the cleaning sheet 1 in the deployed state. The first direction center line CL ₁ corresponds to the folding line of the integrated base sheet 505 in the laminated structure 503.

The base sheet first portion 505a includes a grip portion forming sheet first portion 535a arranged on a surface opposite to the first sheet portion 507 to form the grip portion 91. Further, the base sheet second portion 505b includes a grip portion forming sheet second portion 535b arranged on a surface opposite to the 14th sheet portion 533 to form the grip portion 91.

In addition, the cleaning sheet 1 in the undeployed state has the base sheet first portion 505a and the base sheet second portion 505b first, rather than the plurality of sheet portions (that is, the first sheet portion 507 to the 14th sheet portion 533). It is provided with a pair of deploying grips 85 formed by forming a long portion on the D ₁₂ 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.

Each of the first sheet portion 507 to 14 sheet portion 533, not been folded in the first direction D _1, and extends in the first direction D ₁ and parallel directions.
Each of the first sheet portion 507 to the 14th sheet portion 533 has a fixed end portion (not marked) and a free end portion (not marked).
Each of the first sheet portion 507 to the seventh sheet portion 519 is a base sheet first via a fixed end connecting portion (unsigned) arranged at a fixed end portion (unsigned). It is connected to the portion 505a. Further, each of the 8th sheet portion 521 to the 14th sheet portion 533 is a base sheet via a fixed end connecting portion (not marked) arranged at the fixed end portion (not marked). It is connected to the second portion 505b.

Each of the first sheet portion 507 to the 14th sheet portion 533 has an extension length of the free end portion in a direction parallel to the fixed end connecting portion (first direction D ₁ ) in a direction parallel to the fixed end connecting portion (first direction D ₁ ). It is configured to be longer than the length of the fixed end portion in the first direction D ₁ ).
Further, in each of the base sheet first portion 505a and the base sheet second portion 505b, the extension length of the free end portion in the direction parallel to the fixed end connecting portion (first direction D ₁ ) is the same as that of the fixed end connecting portion. It is configured to be longer than the length of the fixed end in the parallel direction (first direction D ₁ ).

In the laminated structure 503, the fixed end portion of the first sheet portion 507 to seventh sheet portion 519 are spaced by a predetermined distance e in the orthogonal direction D _C. Further, the fixed end portion of the eighth sheet portion 521 to 14 sheet part 533 (fixed end connecting portion) is spaced by a predetermined distance e in the orthogonal direction D _C. The fixed end portion (fixed end connecting portion) of the seventh sheet portion 519 and the first direction center line CL ₁ are separated by 50% (0.5e) of a predetermined distance e, and are centered in the first direction. The line CL ₁ and the fixed end portion (fixed end connecting portion) of the eighth sheet portion 521 are separated by 50% (0.5e) of a predetermined distance e.
In the laminated structure 503, the ends (not marked) of the first sheet portion 507 to the 14th sheet portion 533 on the other direction _DC2 side in the orthogonal direction are aligned at predetermined positions.

Further, in the laminated structure 503, the free end portions (not marked) of the first sheet portion 507 to the 14th sheet portion 533 are free end connecting portions (not marked) made of an adhesive. Are connected by. Since the free end connecting portion (not designated) in the cleaning sheet 1 according to the fifth embodiment is the same as the free end connecting portion 73 in the cleaning sheet 1 according to the second embodiment, the description thereof will be omitted.

In the cleaning sheet 1 in the unfolded state, the fixed end of the first sheet portion 507 to 14 sheet part 533 (fixed end connecting portion) is spaced by a predetermined distance e in the orthogonal direction D _C. Further, in the cleaning sheet 1 in the unfolded state, the height (not marked) of the first sheet portion 507 to the 14th sheet portion 533 in the thickness direction T becomes closer to the center line CL ₁ in the first direction. It tends to be higher.

Each of the first sheet portion 507 to the seventh sheet portion 519 is configured such that the extension length of the free end portion is longer than the length of the fixed end portion. Therefore, when the cleaning sheet 1 is deformed from the undeployed state to the unfolded state, the free ends of the first sheet portion 507 to the seventh sheet portion 519 are in a direction parallel to the fixed end connecting portion (first direction). The width of D ₁ ) can be increased to increase the amplitude of each of the first sheet portion 507 to the seventh sheet portion 519, and the respective wall surfaces of the first sheet portion 507 to the seventh sheet portion 519 have the shape. The surface to be cleaned can be cleaned while flexibly changing.
Since the cleaning sheet 1 according to the fifth embodiment is the same as the cleaning sheet 1 according to the second embodiment except for other parts, the description thereof will be omitted.

<< 6th Embodiment >>
22 and 23 are diagrams for explaining the cleaning sheet 1 according to another embodiment of the present disclosure (hereinafter, referred to as “sixth embodiment”). Specifically, FIG. 22 is a perspective view of the front surface, the plane surface, and the left side surface side of the cleaning sheet 1 attached to the handy cleaning tool 251. FIG. 23 is a diagram for explaining a method of forming the cleaning sheet 1.

The cleaning sheet 1 according to the sixth embodiment is a cleaning sheet used by being attached to the handy cleaning tool 251. 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 is composed of a single cleaning sheet portion 633. The cleaning sheet 1 according to the sixth embodiment does not have a non-expanded state (folded state), but the laminated structure 623 shown in FIG. 23 before forming the cleaning sheet 1 is non-expanded. The structure will be described by assuming that the cleaning sheet 1 is a laminated structure in the state. In the cleaning sheet 1 according to the sixth embodiment, the cleaning sheet portion 633 has a cleaning sheet portion angle of about 360 ° in the unfolded state.

Cleaning the deployed state the seat 1 (the cleaning sheet part 633) are orthogonal to each other, a first direction D _1, the orthogonal direction D _C and the thickness direction T, and the second direction D _2. The first direction D ₁ in the cleaning sheet 1 (the cleaning sheet part 633) in the deployed state, the orthogonal direction D _C and the thickness direction T, and the second direction D ₂ are the same as those of the first embodiment. Laminate structure 623, the cleaning sheet 1 (the cleaning sheet part 633) in the deployed state, described later, the base sheet second portion 601b so as to have the same direction, the first direction D _1, the orthogonal direction D _C and thickness It has a direction T and a second direction D ₂ .

In the cleaning sheet 1 according to the sixth embodiment, the base sheet first portion 601a, the first sheet portion 603, the second sheet portion 605, the third sheet portion 607, the fourth sheet portion 609, and the third sheet portion 1 are formed before the cleaning sheet 1 is formed. The 5 sheet portion 611, the 6th sheet portion 613, the 7th sheet portion 615, the 8th sheet portion 617, the 9th sheet portion 619, the 10th sheet portion 621, and the base sheet 2nd portion 601b were laminated in this order. It has a laminated structure 623.

In the laminated structure 623, each of the first sheet portion 603 to the tenth sheet portion 621 projects in one direction T ₁ in the thickness direction, similarly to the second sheet portion 31 of the cleaning sheet 1 in the first embodiment. Ω ₁ structure (unsigned) and multiple Ω ₂ structures (unsigned) protruding in the other direction T ₂ in the thickness direction, and multiple Ω ₁ structures Each of the above and each of the plurality of Ω ₂ structures have the same shape although the directions are opposite to each other, and are arranged alternately in the first direction D ₁ .

The laminated structure 623 has a fixed end portion 625 and a free end portion 627, and each of the fixed end portion 625 and the free end portion 627 extends in a direction parallel to the first direction D _1, and the fixed end portion 625 and the free end portion 627 are provided. The free end portion 627 is arranged so as to be separated from each other in the second direction D ₂ with the central portion 629 in between.

Further, each of the first sheet portion 603 to the tenth sheet portion 621 is free in the direction parallel to the fixed end connecting portion 631 described later (first direction D ₁ ) as in the cleaning sheet 1 according to the first embodiment. The extension length of the end portion (not shown) is configured to be longer than the length of the fixed end portion (not shown) in the direction parallel to the fixed end connecting portion 631 (first direction D ₁ ). There is.

Each of the first sheet portion 603 to the tenth sheet portion 621 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 601a and the base sheet second portion 601b are made of a spunbonded non-woven fabric made of heat-sealing fibers.

The laminated structure 623 includes a fixed end connecting portion 631 formed by fusing the base sheet first portion 601a to the base sheet second portion 601b at the fixed end portion 625. The fixed end connecting portion 631 extends in the first direction D ₁ and connects the base sheet first portion 601a to the base sheet second portion 601b.

The laminated structure 623 includes a free end connecting portion (not designated) similar to the free end connecting portion 73 of the cleaning sheet 1 in the first embodiment at the free end portion 627.
Specifically, the first sheet portion 603 to the tenth sheet portion 621 are substantially at the center of the top surface of the Ω ₁ structure of the adjacent sheet portions (first direction D ₁₎ , similarly to the cleaning sheet 1 in the first embodiment. The center of the Ω ₂ structure and the substantially center of the top surface of the Ω ₂ structure (the center of the first direction D ₁ ) are free-end connecting portions (signed) including a plurality of free-end connecting portions (unsigned). Not joined). Further, the substantially center of the top surface of the Ω ₁ structure of the first sheet portion 603 (the center of the first direction D ₁ ) and the first portion 601a of the base sheet are connected to a plurality of free end connecting portions (not marked). ) Is joined by a free-end connecting part (not marked). Further, the substantially center of the top surface of the Ω ₂ structure of the tenth sheet portion 621 (the center of the first direction D ₁ ) and the second portion 601b of the base sheet are not provided with a plurality of free end connecting portions (not marked). ) Is joined by a free-end connecting part (not marked).

In the laminated structure 623, the base sheet first portion 601a is developed by about 360 ° in the second direction D ₂ (specifically, the second direction unidirectional D ₂₁ ) so as to be away from the base sheet second portion 601b. The cleaning sheet 1 is formed by facing the sheet first portion 601a and the base sheet second portion 601b and fusing the free end portions 627 of the base sheet first portion 601a and the base sheet second portion 601b. ..

The first sheet portion 603 to the tenth sheet portion 621 are not connected to each other at the central portion 629. Also, the tenth sheet portion 621 and the base sheet second portion 601b are not connected to each other at the central portion 629, and the first sheet portion 603 and the base sheet first portion 601a are connected to each other at the central portion 629. Not connected to. Further, the base sheet first portion 601a and the base sheet second portion 601b are joined to each other at the fixed end portion 625 and the free end portion 627, but are not joined to each other at the central portion 629.

Therefore, the cleaning sheet 1 includes the cleaning sheet mounting portion 253a and the cleaning sheet mounting portion 253b of the handy cleaning tool 251 shown in the first embodiment, and the central portion 629 of the first sheet portion 603 to the tenth sheet portion 621. The central portion 629 of the tenth sheet portion 621 and the base sheet second portion 601b, the central portion 629 of the first sheet portion 603 and the base sheet first portion 601a, and the base sheet first portion 601a and the base sheet second portion 601b. It can be used by inserting it at an arbitrary position with the central portion 629.

Sixth exemplary cleaning according Embodiment sheet 1, the second direction D without directionality in _2, can be cleaned.
Since the cleaning sheet 1 according to the sixth embodiment is the same as the cleaning sheet 1 according to the first embodiment in other parts, the description thereof will be omitted.

<< 7th Embodiment >>
24 to 26 are views for explaining the cleaning sheet 1 according to another embodiment of the present disclosure (hereinafter, referred to as “7th embodiment”). Specifically, FIG. 24 is a perspective view of the front, plane, and left side of the cleaning sheet 1. FIG. 25 is a view of the first cleaning sheet portion 701 on the side of the base sheet first portion 705a and the base sheet second portion 705b. FIG. 26 is a perspective view of the handy cleaning tool 751 for the cleaning sheet 1. The handy cleaning tool 751 includes a cleaning sheet attachment portion 753 for attaching the cleaning sheet 1, a grip portion 755 for the user to grip, and a protrusion 757 for fixing the cleaning sheet 1. ..

The cleaning sheet 1 in the unfolded state is orthogonal to each other, a first direction D _1, the orthogonal direction D _C and the thickness direction T, and the second direction D _2. Will be described later, the first cleaning sheet portion 701 and the second cleaning sheet portion 703 is facing away from each other, the first direction D ₁ in the cleaning sheet 1 in the unfolded state, the orthogonal direction D _C and thickness The direction T and the second direction D ₂ are set with reference to the first cleaning sheet portion 701.

The cleaning sheet 1 according to the seventh embodiment includes two cleaning sheet portions, that is, a first cleaning sheet portion 701 and a second cleaning sheet portion 703.
The first cleaning sheet portion 701 includes a base sheet first portion 705a, a first sheet portion 707, a second sheet portion 709, a third sheet portion 711, a fourth sheet portion 713, and a base sheet second portion 705b.

The first cleaning sheet portion 701 according to the seventh embodiment is substantially the same as the cleaning sheet 1 according to the first embodiment, and does not have the grip portion forming sheet first portion 11a and the grip portion forming sheet second portion 11b. Therefore, it is different from the cleaning sheet 1 according to the first embodiment.
Further, in the first cleaning sheet portion 701 according to the seventh embodiment, the base sheet 705 composed of the base sheet first portion 705a and the base sheet second portion 705b is more than the first sheet portion 707 to the fourth sheet portion 713. a short length of the orthogonal direction D _C, and the first ends of the direction D _1, in that it comprises a first introduction part 731 to facilitate the insertion of the cleaning sheet attachment portions 753 of the handy cleaning tool 751, It is different from the cleaning sheet 1 according to the first embodiment.
The first introduction portion 731 includes a first slit portion 735 for inserting the protrusion 757 of the handy cleaning tool 751.

The second cleaning sheet portion 703 includes a third base sheet portion (not shown), a fifth sheet portion 723, a sixth sheet portion 725, a seventh sheet portion 727, an eighth sheet portion 729, and a fourth base sheet portion (FIG. Not shown). Since the second cleaning sheet portion 703 has the same structure as the first cleaning sheet portion 701, the description thereof will be omitted.

The cleaning sheet 1 is formed as follows.
The first cleaning sheet portion 701 and the second cleaning sheet portion 703, and the base sheet first portion 705a and the base sheet second portion 705b are the fourth base sheet portion (not shown) and the third base sheet portion (not shown), respectively. (Not shown) overlap so that they face each other.
Next, the base sheet first portion 705a and the first cleaning sheet portion 705a and the second cleaning sheet portion 703 form a gripping portion 739 for gripping the cleaning sheet 1 between the first cleaning sheet portion 701 and the second cleaning sheet portion 703. 4 The base sheet portion (not shown) is joined, and the base sheet second portion 705b and the third base sheet portion (not shown) are joined.

The cleaning sheet 1 according to the seventh embodiment, without directional in the second direction D _2, can be cleaned.
Since the cleaning sheet 1 according to the seventh 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 is excellent in aesthetic appearance by coloring a plurality of sheet portions.
<< Eighth Embodiment >>
FIG. 27 is a diagram for explaining a cleaning sheet 1 according to another embodiment of the present disclosure (hereinafter, referred to as “eighth embodiment”). Specifically, FIG. 27 is a front view of the cleaning sheet 1 in the unfolded state attached to the handy cleaning tool 251.
Since the cleaning sheet 1 according to the eighth 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 eighth 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 eighth embodiment, due to the angle, the closer to the fixed end connecting portion 71, the darker the blue color, and the farther from the fixed end connecting portion 71 (closer to the free end connecting portion), the bluer the blue color. Is aesthetically pleasing because it tends to look relatively thin.
Since the cleaning sheet 1 according to the eighth 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 includes a first direction and a second direction forming a circumferential direction of the first direction. The first direction and the second direction are as described above.
The cleaning sheet of the present disclosure includes a second direction constituting the circumferential direction of the first direction, which means that the cleaning sheet in the deployed state has a second orthogonal cross section orthogonal to the first direction. It does not mean that it has an arc shape along the direction (for example, the orthogonal cross section is a circle, a fan shape, or the like).
The cleaning sheet of the present disclosure in the unfolded state can be, for example, a curved shape (for example, an arc, an elliptical arc), a linear shape, an arbitrary combination thereof, or the like along a second direction.

The cleaning sheet of the present disclosure may include one or more cleaning sheet portions. Each of the one or more cleaning sheet portions comprises a base sheet portion and a plurality of sheet portions.
When the cleaning sheet of the present disclosure includes a plurality of cleaning sheet portions, the cleaning sheet may include the plurality of cleaning sheet portions in any form. The cleaning sheet may include, for example, a plurality of cleaning sheet portions arranged continuously or separated by a predetermined distance in a first direction, an orthogonal direction, or the like. In this case, the cleaning sheet is, for example, a plurality of cleaning sheet portions, and each base sheet portion of the plurality of cleaning sheet portions is continuously or predetermined on a separate sheet (for example, a gripping sheet) or the like. It may be connected at a distance, and the base sheet portions of the plurality of cleaning sheet portions are connected, for example, the base sheet portions of the plurality of cleaning sheet portions are composed of an integral sheet. It may be a thing.

A plurality of cleaning sheet portions of the cleaning sheet can be arranged, for example, on one side cleaning surface of a single-sided cleaning type floor cleaning tool, and placed on both sides cleaning surface of a double-sided cleaning type floor cleaning tool. Can be done.

Further, the cleaning sheet may include, for example, a plurality of cleaning sheet portions arranged continuously in the second direction or separated by a predetermined distance. In this case, the cleaning sheet may be, for example, a plurality of cleaning sheet portions connected so that the base sheet portions of the plurality of cleaning sheet portions face each other.

For example, the cleaning sheet includes the following two cleaning sheet portions, and the two cleaning sheet portions have a total cleaning sheet portion angle of 360 ° in the unfolded state (for example, each of the two cleaning sheet portions is 180 °). When having a cleaning sheet partial angle), the cleaning sheet can be formed as follows.
・ First cleaning sheet part (including the first part of the base sheet and a plurality of first sheet parts)
-Second cleaning sheet part (including the second part of the base sheet and a plurality of second sheet parts)

The first cleaning sheet portion and the second cleaning sheet portion are connected so that the first portion of the base sheet and the second portion of the base sheet face each other (for example, the first portion of the base sheet and the second portion of the base sheet are connected to each other). The first sheet portion and the second sheet portion to be connected are connected).
Examples of the connection include an adhesive and fusion of heat-sealing fibers.

Further, the cleaning sheet includes the following three cleaning sheet portions, and in the deployed state, the three cleaning sheet portions have a total cleaning sheet portion angle of 360 ° (for example, each of the three cleaning sheet portions has a 120 ° angle). When having a cleaning sheet partial angle), the cleaning sheet can be formed as follows.
・ First cleaning sheet part (including the first part of the base sheet and a plurality of first sheet parts)
-Second cleaning sheet part (including the second part of the base sheet and a plurality of second sheet parts)
・ Third cleaning sheet part (including the third base sheet part and a plurality of third sheet parts)

The first cleaning sheet portion to the third cleaning sheet portion face each other with the first portion of the base sheet, the second portion of the base sheet, and the third base sheet portion (for example, a part of the first portion of the base sheet and the base sheet). A part of the second part faces each other, the remaining part of the first part of the base sheet and a part of the third base sheet part face each other, and the remaining part of the second part of the base sheet and the remaining part of the third base sheet part And face each other).
Examples of the above-mentioned part and the remaining part include a section formed by an integrated fixed end portion of each of the first part to the third base sheet part of the base sheet.
Examples of the connection include an adhesive and fusion of heat-sealing fibers.

Each of the plurality of seat portions extends in a direction along the first direction, and has a fixed end portion and a free end portion. The sections of the fixed end and the free end are as described above.

Each fixed end of the plurality of seat portions is connected to the base sheet portion by a fixed end connecting portion extending in a direction along the first direction, preferably in a direction parallel to the first direction. There is. The fixed end 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. The fixed end connecting portion may be intermittent or continuous as long as it extends in a direction along the fixed end portion.

In the plurality of sheet portions, the fixed ends of the plurality of sheet portions may be connected to the base sheet as a single unit, and at least a part (preferably 40% or more, more preferably 60) of the plurality of sheet portions. % Or more, more preferably 70% or more, even more preferably 80% or more, even more preferably 90% or more, and even more preferably 100% of the fixed ends). However, it may be connected to the base sheet portion. By connecting the fixed end of the sheet portion to the base sheet as a single unit, it is possible to prevent the base sheet portion and the cleaning sheet from becoming hard, and by forming the integrated fixed end portion, the base sheet The part that is not connected to the integrated fixed end of the part is excellent in softness, and the cleaning sheet is easily deformed according to the surface to be cleaned, and the surface to be cleaned is less likely to be damaged.

At least a portion of the plurality of sheet portions, preferably 40% or more, more preferably 60% or more, still more preferably 70% or more, even more preferably 80% or more, even more preferably 90% or more, and even more preferably. Is 100% of the free end portions extending in the direction along the first direction while reciprocating in the second direction, and among the plurality of sheet portions by the free end connecting portion including the plurality of free end connecting portions. , Partially connected to the seat portion adjacent in the second direction. This is from the viewpoint of cleanability of the surface to be cleaned.

Using the character formula, in the cleaning sheet of the present disclosure, between the "nth free end connecting portion" and the "nth (n + 1) free end connecting portion" adjacent to the nth free end connecting portion in the second direction. , Preferably at least a part (more preferably 40% or more, further preferably 60% or more, for example, all but both ends in the first direction) of the plurality of nth free end connecting portions constituting the nth free end connecting portion. ) And preferably at least a part (more preferably 40% or more, still more preferably 60% or more, for example, the first) of the plurality of (n + 1) free end connecting portions constituting the first (n + 1) free end connecting portion. (All except both ends of the direction) are not arranged at overlapping positions in the second direction. This is from the viewpoint of facilitating the formation of a reciprocating structure in a plurality of sheet portions in the cleaning sheet in the unfolded state.

The "position overlapping in the second direction" means a position overlapping in the thickness direction of both sides facing each other with the constituent members constituting the seat portion sandwiched between them.
Therefore, when the target sheet portion is flat and does not have a folded structure, the above-mentioned "position overlapping in the second direction" is interpreted literally.

On the other hand, when the target seat portion has a folded structure, the plurality of nth free end connecting portions and the plurality of (n + 1) free end connecting portions are constituent members constituting the target seat portion. Of the two sides facing each other with the above in between, 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 it can contribute to the formation of the reciprocating structure of the target sheet portion in the cleaning sheet in the unfolded state.

For example, when the target sheet portion has a plurality of Ω structures (Ω ₁ structure and Ω ₂ structure), one of the plurality of nth free end connecting portions is arranged at the first top of the Ω ₁ structure. Then, one of the plurality of (n + 1) free end connecting portions is arranged at the first bottom portion (the second top of the Ω ₂ structure), and one of the plurality of nth free end connecting portions and a plurality of (n + 1) th free end connecting portions. Even when one of the free end connecting portions overlaps in the thickness direction, one of the plurality of nth free end connecting portions and one of the plurality of (n + 1) free end connecting portions are ". It is not considered to be placed at the "position overlapping in the second direction", but is excluded.

The cleaning sheet of the present disclosure is an nth auxiliary connection that connects two adjacent sheet portions that extend continuously or intermittently from at least a part of a plurality of nth free end connecting portions toward a fixed end portion. Further portions may be provided. As a result, it becomes easy to hold the reciprocating structure formed with the nth auxiliary connecting portion between the two adjacent sheet portions. The nth auxiliary connecting portion may be referred to as the nth auxiliary connecting portion as a whole.
The nth 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.

In the cleaning sheet of the present disclosure, the cleaning sheet portion angle of the cleaning sheet portion is arbitrary, and is more than 0 ° and 360 ° or less, preferably 150 ° or more. This is from the viewpoint of cleanability of the surface to be cleaned.
When the base sheet portion is further provided with a cleaning tool or a member for a grip portion for gripping by the user, the cleaning sheet portion angle is preferably 150 ° or more and less than 360 °. This is from the viewpoint of cleanability of the surface to be cleaned.
Further, when the base sheet portion is used as a cleaning tool or a gripping portion for the user to grip, the cleaning sheet portion angle can be 360 °.

In the cleaning sheet portion of the cleaning sheet of the present disclosure, the number of a plurality of sheet portions is not particularly limited, and may change depending on a desired cleaning sheet portion angle, redundancy of the sheet portion, and the like. For example, the cleaning sheet portion angle is 180 °, and the number of a plurality of sheet portions can be, for example, 3 to 12.

In the cleaning sheet of the present disclosure, a plurality of sheet portions, preferably 40% or more, more preferably 60% or more, still more preferably 80% or more, and even more preferably 100% of the sheet portions, are in the second direction. A plurality of first tops protruding in one direction, each of which has a first top surface (Ω ₁ structure), and a plurality of second tops protruding in the other direction in the second direction. Each of them has a second top surface (Ω ₂ structure). Thereby, in the cleaning sheet in the unfolded state, the wave height of the reciprocating structure of the corresponding sheet portion can be increased.

Further, in the cleaning sheet of the present disclosure, a plurality of sheet portions, preferably 40% or more, more preferably 60% or more, still more preferably 80% or more, and even more preferably 100% of the sheet portions are preferable. Has a redundancy of 120% or higher, more preferably 150% or higher, even more preferably 200% or higher, and even more preferably 250% or higher. Thereby, in the cleaning sheet in the unfolded state, the wave height of the reciprocating structure of the corresponding sheet portion can be increased.

Further, in the above case, it is preferable that a plurality of free end connecting portions constituting the free end connecting portion are arranged on the first top surface and the second top surface described above. Thereby, in the cleaning sheet in the unfolded state, the wave height of the reciprocating structure of the corresponding sheet portion can be increased.

Further, in the above case, in a plan view, the total area of the plurality of first top surfaces is preferably 50% or more and 100% or less, more preferably 70% or more and 100% or less of the area of the sheet portion, and further. It is preferably 90% or more and 100% or less. As a result, the degree of freedom in arranging the plurality of free end connecting portions constituting the free end connecting portion on the first top surface is increased, and the redundancy of the corresponding seat portion is increased, so that the reciprocating structure of the corresponding seat portion is increased. Wave height can be increased.

Further, in the above case, in a plan view, the total area of the plurality of second top surfaces is preferably 50% or more and 100% or less, more preferably 70% or more and 100% or less of the area of the sheet portion, and further. It is preferably 90% or more and 100% or less. As a result, the degree of freedom for arranging the plurality of free end connecting portions constituting the free end connecting portion on the second top surface is increased, and the redundancy of the corresponding seat portion is increased. Therefore, the reciprocating structure of the corresponding seat portion is increased. Wave height can be increased.

In the cleaning sheet of the present disclosure, at least a part of the plurality of sheet portions is in a direction parallel to the fixed end connecting portion, and the extension length of the free end portion is parallel to the fixed end connecting portion. It is configured to be longer than the length of the fixed end, that is, has a free end extension length structure. As a result, not only the free end portion but also the central portion between the fixed end portion and the free 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 free 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 a substantially polygonal shape (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 free end portion have an extension length of the free end portion in a direction parallel to the fixed end connecting portion. It must be selected to be longer than the length of the fixed end in the direction parallel to the fixed end connection.

In the cleaning sheet of the present disclosure, when at least a part of the plurality of sheet portions has the above-mentioned folded portion, the extension length of the free end portion in the direction parallel to the fixed end connecting portion and parallel to the fixed end connecting portion. The preferred relationship with the length of the fixed end in any direction is the same as the redundancy described above.

In the cleaning sheet of the present disclosure, when at least a part of the plurality of sheet portions has the above-mentioned predetermined shape, the extension length of the free end portion in the direction parallel to the fixed end connecting portion is the same as that of the fixed end connecting portion. It is preferably 1.05 times or more, more preferably 1.1 times or more, still more preferably 1.20 times or more longer than the length of the fixed end in the parallel direction, and preferably 1.60 times. Below, it is more preferably 1.50 times or less, still more 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 at least a part of the plurality of sheet portions has the above-mentioned predetermined shape, the end portion of the free end portion is within a predetermined range (specifically, from the edge edge of the fixed end portion). , Within the distance between the free end and the fixed end).

Specifically, as shown in FIG. 29, the sheet portion 1011 has a fixed end portion 3 and a free end portion 5. The fixed end 3 and the free end 5 are parallel to the first direction D ₁ and are separated by a distance R. Fixed end 3, at both ends in the first direction D _1, has a first edge 1013 and second edge 1015, and the free end 5, the first direction D ₁ of the two ends, the first end It has 1017 and a second end 1019. Further, the first end portion 1017 of the free 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 free 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 a wet type or a dry type, and in the cleaning sheet of the present disclosure, the base sheet portion and the plurality of sheet portions constituting the cleaning sheet portion are sheets used in the art. , For example, 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.

Further, the base sheet portion and 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 constitute the base sheet portion and a plurality of sheet portions, and the base sheet portion and the plurality of sheet portions may be attached to another sheet-like material, for example, the above-mentioned cloth. The seat portion can be configured. In other words, each of the base sheet portion and 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 base sheet portion and the plurality of sheet portions can contain heat-sealing fibers. As a result, the fixed end connecting portion, the free end 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 base sheet portion and the plurality of sheet portions 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 cleaning sheet portion, the high scraping sheet is arranged in the center (relatively many) and the low scraping sheet is arranged at the end (relatively many).
When the high scraping sheet is arranged (relatively many) in the center of the cleaning sheet portion, the high scraping sheet is arranged (relatively many) close to the surface to be cleaned in the deployed state of the cleaning sheet. And since the low scraping sheet is easily arranged (relatively many) on the periphery thereof, the high scraping sheet can remove dirt, and the low scraping sheet can wipe off the dirt, so that the cleaning sheet can be used. Cleanability is improved.

(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 formed by orthogonal lines extending in a direction (for example, orthogonal direction) orthogonal to the predetermined direction at the center of the cleaning sheet in a predetermined direction (for example, the first direction). 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 base sheet portion and 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 sheet portions arranged at both ends of the cleaning sheet portion are hydrophobic cloth (for example, spunbond made of synthetic fiber) which is a relatively highly hydrophobic cloth. Non-woven fabric), and the sheet portion arranged between them is composed of a hydrophilic fabric (for example, a spunlaced non-woven fabric containing heat-sealing fibers and water-retaining fibers), which is a relatively highly hydrophilic fabric. The hydrophilic fabric 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 and the cleaning sheet can take an undeployed state, the cleaning sheet in the undeployed state includes a pair of unfolding grips for deploying the cleaning sheet. Is preferable. This is because when the cleaning sheet is a wet type, the chemical solution may cause a plurality of sheet portions to stick to each other in the cleaning sheet in the undeployed state, making it difficult to deploy. 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 includes a single cleaning sheet portion, for example, when the cleaning sheet portion angle is less than 360 °, the surface of the base sheet portion opposite to the plurality of sheet portions. It 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 base sheet portion.

When the cleaning sheet of the present disclosure includes a single cleaning sheet portion and the cleaning sheet portion angle is 360 °, the grip portion is placed between the portions of the base sheet portion facing each other. Can be formed. As the portions facing each other, for example, the fixed end portion is composed of an integrated fixed end portion in which the fixed end portions of a plurality of seat portions are integrated, and the integrated fixed end portion is a base sheet portion. A first portion of the base sheet and a second portion of the base sheet in which the base sheet portion is partitioned by the integrated fixed end portion when connected to the base sheet can be mentioned.

Further, the grip portion can be formed between two adjacent seat portions of the base sheet portion and the plurality of seat portions. The grip portion can be formed, for example, in the central portion, for example, between the base sheet portion and the seat portion adjacent to the base sheet portion, and between two adjacent seat portions.

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 fixed end connecting portion sandwiched between them.

When the cleaning sheet of the present disclosure includes a plurality of cleaning sheet portions, a plurality of cleaning sheet portions are added to the grip portion when the cleaning sheet of the present disclosure includes a single cleaning sheet portion. A grip portion can be formed in the portion between (for example, between the base sheet portions of the 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 a 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.

The cleaning sheet of the present disclosure does not have to be in the undeployed state, and may be in the undeployed state, and preferably can be in the undeployed state. Thereby, the cleaning sheet can be made compact before or after use.
Examples of the cleaning sheet in the undeployed state include a cleaning sheet portion of the cleaning sheet in which the base sheet portion is folded with a plurality of sheet portions sandwiched between them.

In a cleaning sheet according to another aspect of the present disclosure, at least a portion of the free ends of the plurality of sheet portions are free end portions of the plurality of sheet portions adjacent to each other in the second direction due to the free end connecting portion. It is connected to and has a reciprocating structure. As a result, the cleaning sheet is excellent in cleanability of the surface to be cleaned.
Further, in the cleaning sheet, the two sheet portions connected by the free end 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 Free end 7 Central part 9 Laminated structure 11a Grip part forming sheet 1st part 11b Grip part forming sheet 2nd part 13a Base sheet 1st part 13b Base sheet 2nd part 15 Grip part Fused part 17 Cleaning sheet part 21 1st sheet part 31 2nd sheet part 51 3rd sheet part 61 4th sheet part 71 Fixed end connecting part 73 Free end connecting part 85 Deployment grip part 91 Grip part 93 1st reciprocation Structure 95 2nd reciprocating structure 97 3rd reciprocating structure 99 4th reciprocating structure D ₁ 1st direction D ₁₁ 1st direction 1 direction D ₁₂ 1st direction other direction _DC orthogonal direction DC ₁ orthogonal direction ₁ direction D _{C 2} orthogonal direction etc. Direction D ₂ 2nd direction D ₂₁ 2nd direction 1 direction D ₂₂ 2nd direction Other direction T Thickness direction T ₁ Thickness direction ₁ direction T ₂ Thickness direction Other direction

Claims (17)

1. A cleaning sheet including a base sheet portion and a cleaning sheet portion including a plurality of sheet portions, and also having a first direction and a second direction forming a circumferential direction of the first direction.
   The plurality of seat portions extend in a direction along the first direction, and each of them has a fixed end portion and a free end portion.
   The fixed end portion of each of the plurality of seat portions is connected to the base sheet portion by a fixed end connecting portion extending in a direction along the first direction.
   The extension length of the free end portion in the direction parallel to the fixed end 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 fixed end connecting portion. Is configured to be longer,
   At least a part of the free end portions of the plurality of seat portions extends in a direction along the first direction while reciprocating in the second direction, and the free end connecting portion including the plurality of free end connecting portions provides the free end connecting portion. Of the plurality of seat portions, the seat portions adjacent to the second direction are partially connected to the free end portion.
   The cleaning sheet, characterized in that.
2. The first aspect of the present invention, wherein the plurality of sheet portions include an integrated fixed end portion in which the fixed end portions thereof are integrated, and the integrated fixed end portion is connected to the base sheet portion. The listed cleaning sheet.
3. The base sheet portion is divided into a base sheet first portion and a base sheet second portion by the integrated fixed end portion, and the cleaning formed by the base sheet first portion and the base sheet second portion. The cleaning sheet according to claim 2, wherein the cleaning sheet portion angle of the sheet portion is 150 ° or more and less than 360 °.
4. The cleaning sheet according to any one of claims 1 to 3, further comprising a cleaning tool or a gripping portion for the user to grip the base sheet portion.
5. The base sheet portion is divided into a base sheet first portion and a base sheet second portion by the integrated fixed end portion, and the cleaning formed by the base sheet first portion and the base sheet second portion. Cleaning of the seat portion The seat portion angle is 360 °, and a cleaning tool or a grip portion for the user to grip is formed between the first portion of the base sheet and the second portion of the base sheet. The cleaning sheet according to 2.
6. The cleaning sheet according to claim 1, wherein the cleaning sheet includes a plurality of the cleaning sheet portions, and the plurality of cleaning sheet portions are connected so that the base sheet portions face each other.
7. The cleaning sheet according to claim 6, further comprising a cleaning tool or a gripping portion for the user to grip between the base sheet portions.
8. The cleaning sheet according to claim 7, wherein the grip portion includes an insertion port portion that is open in the first direction and extends in a direction along the first direction.
9. The cleaning according to claim 8, wherein at least a part of the plurality of cleaning sheet portions includes an extension portion in which the insertion port portion extends away from the plurality of sheet portions in a first direction. Sheet.
10. In each of the plurality of cleaning sheet portions, the plurality of sheet portions include an integrated fixed end portion in which the fixed end portions thereof are integrated, and the integrated fixed end portion is the base sheet portion. The cleaning sheet according to any one of claims 6 to 9, which is connected to the cleaning sheet.
11. Any of claims 1 to 10, wherein a cleaning tool or a grip portion for the user to grip is provided between the two adjacent sheet portions of the base sheet portion and the plurality of sheet portions. The cleaning sheet described in item 1.
12. The cleaning sheet according to any one of claims 1 to 11, wherein the cleaning sheet is configured to be in a non-deployed state.
13. The cleaning sheet according to any one of claims 1 to 12, wherein at least a part of the plurality of sheet portions is alternately folded back in a direction along a first direction by a plurality of folded portions.
14. At least a part of the plurality of sheet portions is a plurality of first tops protruding in one of the second directions, each of which has a first top surface, and the other in the second direction. A plurality of protruding second tops, each of which has a second top surface, are provided, and the plurality of free end connecting portions are each of the first top surface and the second top surface. The cleaning sheet according to any one of claims 1 to 13, which is arranged in.
15. In the sheet portion to which the first top surface and the second top surface belong, the total area of the plurality of first top surfaces is 50% or more and 100% or less of the area of the sheet portion, and the plurality of second tops. The cleaning sheet according to claim 14, wherein the total area of the surface is 50% or more and 100% or less of the area of the sheet portion.
16. A cleaning sheet including a base sheet portion and a cleaning sheet portion including a plurality of sheet portions, and also having a first direction and a second direction forming a circumferential direction of the first direction.
    The plurality of seat portions extend in a direction along the first direction, and each of them has a fixed end portion and a free end portion.
    The fixed end portion of each of the plurality of seat portions is connected to the base sheet portion by a fixed end connecting portion extending in a direction along the first direction.
    The extension length of the free end portion in the direction parallel to the fixed end 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 fixed end connecting portion. Is configured to be longer,
    At least a part of the free end portions of the plurality of sheet portions are connected to the free end portion of the sheet portion adjacent to the second direction among the plurality of sheet portions by the free end connecting portion. Has a reciprocating structure,
    The cleaning sheet, characterized in that.
17. The cleaning sheet according to claim 16, wherein the two sheet portions connected by the free end connecting portion have the reciprocating structure different from each other.

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