JP2020142009A - Cleaning sheet - Google Patents

Abstract

To provide a cleaning sheet that excels in cleaning of a target cleaning surface.SOLUTION: A plurality of sheets (23-39) are respectively extending along a second direction D2 and also arranged in order in a first direction D1. Each of the plurality of sheets (23-39) is provided with fixed end parts (71, 81) and free end parts (73, 83) and is also provided with one end regions (75, 85) and the other end regions (77, 87). In the plurality of respective sheets (23-39), the fixed end parts (71, 81) are connected to a base sheet 21. At least in a part of the plurality of sheets (23-39), the free end parts (73, 83) are connected to the base sheet 21, in one end regions (75, 85) and the other end regions (77, 87), which are the characteristics of the cleaning sheet 1.SELECTED DRAWING: Figure 1

Description

The present 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, in Patent Document 1, in a cleaning tool including a base sheet and a handle member having a handle and an insertion portion inserted into the base sheet, the base sheet is attached to the insertion portion. It has a surface and a wiping surface located on the opposite side thereof, and has a multi-layer structure in which a plurality of sheets are laminated in the thickness direction, and the sheets of the plurality of sheets facing each other in the thickness direction Disclosed are cleaning tools characterized in that, at least in part, the folding orientations differ from each other in the thickness direction.

Japanese Unexamined Patent Publication No. 2017-118963

The cleaning tool described in Patent Document 1 has a laminated structure in which a plurality of sheets are laminated, and cleans the surface to be cleaned with the wiping surface facing down. Among the plurality of sheets forming the laminated structure. Although the sheets constituting the wiped surface contribute to cleaning the surface to be cleaned, the other sheets among the plurality of sheets forming the laminated structure may not contribute to the cleaning of the surface to be cleaned.
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 base sheet and a plurality of sheets, and are cleaning sheets having a first direction and a second direction forming a circumferential direction of the first direction, and the above-mentioned plurality of sheets. Each of them extends in a direction along the second direction, and the plurality of sheets are arranged in order in the first direction, and each of the plurality of sheets has a fixed end portion and a free end portion. In addition, it has one end region and the other end region, and in each of the plurality of sheets, the fixed end portion is connected to the base sheet, and the plurality of sheets At least in part, we have found a cleaning sheet characterized in that the free end is connected to the base sheet in one end region and the other end region.

The cleaning sheet of the present 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 perspective view of the handy cleaning tool 151 for the cleaning sheet 1. FIG. 6 is a diagram for explaining the cleaning sheet 1 according to the second embodiment. FIG. 7 is a diagram for explaining the cleaning sheet 1 according to the second embodiment. FIG. 8 is a diagram for explaining the cleaning sheet 1 according to the third embodiment. FIG. 9 is a diagram for explaining the cleaning sheet 1 according to the fourth embodiment.

[Definition]
・ "Non-deployed 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. 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.

・ "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 sandwiching a plurality of sheets. When the base sheet is on a flat surface, the cleaning sheet partial 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.

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

Specifically, the present disclosure relates to the following aspects.
[Aspect 1]
A cleaning sheet comprising a base sheet and a plurality of sheets, and having a first direction and a second direction forming a circumferential direction of the first direction.
Each of the plurality of sheets extends in a direction along the second direction, and the plurality of sheets are arranged in order in the first direction.
Each of the plurality of sheets has a fixed end portion and a free end portion, and also has one end region and the other end region.
In each of the plurality of sheets, the fixed end portion is connected to the base sheet.
In at least a portion of the plurality of sheets, the free end is connected to the base sheet in one end region and the other end region.
The above-mentioned cleaning sheet, which is characterized in that.

In the cleaning sheet, each of the plurality of sheets extends in a direction along the second direction, the plurality of sheets are arranged in order in the first direction, and at least a part of the free ends of the plurality of sheets are free ends. One edge and the other edge of the section are connected to the base sheet. Therefore, when cleaning the surface to be cleaned while moving the cleaning sheet in the first direction, even if a sheet cleans the surface to be cleaned and becomes dirty among a plurality of sheets, the sheet is covered with dirt. Adjacent adjacent sheets can clean the surface to be cleaned. Further, among the plurality of sheets, a sheet connected to the base sheet in one end region and the other end region (hereinafter, may be referred to as an "end fixing sheet") is a plurality of sheets. It is possible to prevent the vehicle from falling in the first direction.
From the above, when cleaning the cleaning surface while moving in the first direction, the cleaning sheet can supply a new cleaning surface and prevent the end fixing sheet from tipping over a plurality of sheets. Therefore, the cleaning sheet is excellent in the cleanability of the surface to be cleaned.

[Aspect 2]
A bellows structure sheet having a bellows structure in which at least a part of the plurality of sheets is alternately folded in one direction in a first direction and another direction in the first direction constituting the first direction by a plurality of folded portions. The cleaning sheet according to the first aspect, wherein the sheet portions at both ends forming the bellows structure constitute the one end region and the other end region.

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

[Aspect 3]
The cleaning sheet according to aspect 2, wherein the bellows structure sheet is connected to a sheet adjacent to the first direction of the plurality of sheets at least a part of the plurality of folded-back portions.

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

[Aspect 4]
The cleaning sheet according to any one of aspects 1 to 3, wherein at least a part of the plurality of sheets is a non-folded sheet that is not folded in the first direction.

In the cleaning sheet, at least a part of the plurality of sheets is not folded back in the first direction, so that the cleaning sheet is not folded back in the first direction when cleaning the surface to be cleaned while moving the cleaning sheet in the first direction. The sheet easily comes into surface contact with the surface to be cleaned. Therefore, when the cleaning sheet is reciprocated in the first direction to clean the surface to be cleaned, the cleaning sheet is excellent in cleanability of the surface to be cleaned per reciprocation.

[Aspect 5]
The cleaning sheet according to aspect 4, wherein at least a part of the non-folded sheet is connected to a sheet adjacent to the first direction of the plurality of sheets.

In the cleaning sheet, at least a part of the non-folded sheet is connected to a sheet adjacent to the sheet in the first direction. Therefore, when cleaning the surface to be cleaned while moving the cleaning sheet in the first direction, the non-folded sheet can prevent the plurality of sheets from falling in the first direction, and eventually the cleaning sheet is covered. Excellent cleanability of the cleaning surface.

[Aspect 6]
The cleaning sheet according to any one of aspects 1 to 5, wherein the cleaning sheet is configured to be in a non-deployed state.

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

[Aspect 7]
The cleaning sheet according to aspect 6, wherein the cleaning sheet is a wet type, and in the non-deployed state, the cleaning sheet is separated by a predetermined distance and includes a pair of unfolding grip portions.

Since the cleaning sheet includes a predetermined pair of unfolding grip portions, it is easy to deploy from the undeployed state to the unfolded state.

1 to 4 are views for explaining a 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, plane, and left side of the cleaning sheet 1 in the unfolded state. 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 unfolded state. FIG. 3 is a perspective view of the front, plane, and left side of the cleaning sheet 1 in the undeployed state. FIG. 4 is a diagram for explaining a method of manufacturing the cleaning sheet 1.
FIG. 5 is a perspective view of the handy cleaning tool 151 for the cleaning sheet 1.

The cleaning sheet 1 according to the first embodiment is a cleaning sheet used by being attached to the handy cleaning tool 151. 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 5 in the unfolded state and a single laminated structure 3 in the undeployed state. Can be formed. Further, in the cleaning sheet 1 according to the first embodiment, the cleaning sheet portion 5 has a cleaning sheet portion angle of about 180 ° in the unfolded state.

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 21a of the base sheet is the front surface and the side of the second portion 21b of the base sheet is the back surface.

The cleaning sheet 1 in the unfolded state (the cleaning sheet portions 5) 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 3) 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 21b, 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.

The cleaning sheet 1 in the non-deployed state (stack 3, see FIG. 3), the base sheet first portion 21a, by developing the second direction D ₂ away from the base sheet second portion 21b, deployed state The cleaning sheet 1 (see the cleaning sheet portion 5, FIGS. 1 and 2) is formed in the above, and the cleaning sheet 1 in the deployed state is used for cleaning the surface to be cleaned. In other words, the cleaning sheet 1 (cleaning sheet portion 5) in the unfolded state can be folded in the second direction D ₂ to form the cleaning sheet 1 (laminated structure 3) in the undeployed state.

As shown in FIGS. 1 and 2, the cleaning sheet 1 in the unfolded state includes the base sheet 21 and a plurality of sheets, that is, the first sheet 23, the second sheet 25, the third sheet 27, and the fourth sheet 29. It includes nine sheets including a fifth sheet 31, a sixth sheet 33, a seventh sheet 35, an eighth sheet 37, and a ninth sheet 39.
The base sheet 21 is divided into a base sheet first portion 21a and a base sheet second portion 21b by a fusing portion 11 extending in the first direction D ₁ at the center of the second direction D ₂ .

The base sheet 21 includes a grip portion forming sheet 41 for forming the grip portion 13 arranged on a surface opposite to the first sheet 23 to the ninth sheet 39. Specifically, the grip portion forming sheet 41 includes the grip portion forming sheet first portion 41a and the grip portion forming sheet by the fusion portion 11 extending in the first direction D ₁ at the center of the second direction D _2. It is divided into a second portion 41b, and the base sheet first portion 21a and the base sheet second portion 21b are gripped on the surfaces opposite to the first sheet 23 to the ninth sheet 39, respectively. A grip portion forming sheet for forming the grip portion 13 The first portion 41a of the grip portion forming sheet for forming the portion 13 and the grip portion forming sheet for forming the grip portion 13 arranged on the surfaces opposite to the first sheet 23 to the ninth sheet 39. It includes a second portion 41b.

The base sheet first portion 21a and the grip portion forming sheet first portion 41a, and the base sheet second portion 21b and the grip portion forming sheet second portion 41b are provided with a cleaning sheet attachment portion of the handy cleaning tool 151. The fusing portion 15 for the grip portion is formed so as to form the grip portion 13 for gripping the 153a and the cleaning sheet mounting portion 153b. Since the fusing portion 15 for the grip portion is a known portion, the description thereof will be omitted.

Each of the grip portion forming sheet 41 and the first sheet 23 to the ninth sheet 39 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 21 is made of a spunbonded non-woven fabric made of heat-sealing fibers.

In the cleaning sheet 1 in the unfolded state, each of the first sheet 23 to the ninth sheet 39 extends in a direction parallel to the second direction D ₂ as a whole (developed in a direction parallel to the second direction D _2). The first sheet 23 to the ninth sheet 39 are arranged in the first direction D ₁ at a predetermined pitch P in that order. Since each of the first sheet 23 to the ninth sheet 39 has substantially the same length as the predetermined pitch P in the first direction D ₁ , the interval between the first sheet 23 to the ninth sheet 39 is approximately 0. Is.

The first sheet 23 includes a first fixed end portion 71 and a first free end portion 73, and is arranged at an end portion in the second direction unidirectional D _21. One first end portion region 75 And the other first end region 77 arranged at the end on the side of the second direction and the other direction D ₂₂ .

The first sheet 23 has a first bellows structure 43 that is alternately folded back in the first direction one direction D ₁₁ and the first direction other direction D ₁₂ by the folded portion (not marked) of _11. are doing. Specifically, the first sheet 23 is folded back alternately in the first direction and the other direction D ₁₂ in the second direction and the other direction D ₂₂ and then in the first direction and the other direction D ₁₁ at a total of 11 folding portions. It has a first bellows structure 43.
The folded portion (not marked) of 11 extends in the second direction D ₂ in the cleaning sheet 1 (laminated structure 17) in the unfolded state, and the cleaning sheet (cleaning sheet portion) in the unfolded state. In 19), it extends in a direction orthogonal to the first direction D ₁ .

The first sheet 23 is divided into the nth portions (n = 1 to 12) of the first sheet by the folded portions (not marked) of 11, and the first sheets at both ends constituting the first bellows structure 43. The first portion 23a and the first sheet 12th portion 23b correspond to one first end region 75 and the other first end region 77, respectively, and the first sheet first portion 23a and the first sheet 12th. Each of the portions 23b is connected to the base sheet 21 as a first fixed end portion 71. Specifically, the first sheet first portion 23a and the first sheet 12th portion 23b are connected to the base sheet first portion 21a and the base sheet second portion 21b as the first fixed end portion 71, respectively. ..

Like the first sheet 23, the second sheet 25 includes a second fixed end portion 81 and a second free end portion 83, and is arranged at the end portion of the second direction unidirectional D ₂₁ . It has one second end region 85 and the other second end region 87 arranged at the end of the second direction other direction D ₂₂ . Further, the second sheet 25 has a second bellows structure 45 that is alternately folded back in the first direction one direction D ₁₁ and the first direction other direction D ₁₂ by the folded portion (not marked) of _11. The second sheet 25 is divided into the nth portions (n = 1 to 12) of the second sheet by the folded-back portion (not marked) of 11 like the first sheet 23.

The first portion 25a of the second sheet and the twelfth portion 25b of the second sheet at both ends constituting the second bellows structure 45 correspond to one second end region 85 and the other second end region 87, respectively. It is connected to the base sheet 21 as a second fixed end 81. Specifically, the first portion 25a of the second sheet and the twelfth portion 25b of the second sheet are connected to the first portion 21a of the base sheet and the second portion 21b of the base sheet, respectively.
The third sheet 27 to the ninth sheet 39 have the third bellows structure 47 to the ninth bellows structure 59, similarly to the first sheet 23. Detailed description of the third sheet 27 to the ninth sheet 39 will be omitted.

As shown in FIG. 3, in the cleaning sheet 1 in the undeployed state, a plurality of sheets, that is, the first sheet, are formed between the base sheet first portion 21a and the base sheet second portion 21b in the thickness direction T. Nine sheets including the sheets 23 to the ninth sheet 39 are arranged.
In the cleaning sheet 1 in the unfolded state, the first sheet 23 to the ninth sheet 39 are arranged in the first direction D ₁ at a predetermined pitch P in that order, which is the same as the cleaning sheet 1 in the unfolded state. is there.

In the first sheet 23, in the thickness direction T, the first sheet first portion 23a to the first sheet 12th portion 23b are laminated in that order. In the second sheet 25, the first portion 25a of the second sheet to the twelfth portion 25b of the second sheet are laminated in this order in the thickness direction T. The third sheet 27 to the ninth sheet 39 are the same as the first sheet 23 and the second sheet 25.

As shown in FIG. 3, the cleaning sheet 1 in the undeployed state makes the base sheet 21 (base sheet first portion 21a and base sheet second portion 21b) more than a plurality of sheets (particularly the ninth sheet 39). , A pair of unfolding grips 89 formed by forming a long portion on the D ₁₂ side in the first direction and the other direction. Since the pair of deploying grips 89 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 89 and deploy the cleaning sheet 1.

A pair of unfolding grips 89 of the cleaning sheet 1 (laminated structure 3) in the undeployed state are gripped, and the second direction D _{2 is} specifically so as to move the base sheet first portion 21a away from the base sheet second portion 21b. Is deployed in the second direction unidirectional D ₂₁ , and each of the first sheet 23 to the ninth sheet 39 connected to the base sheet first portion 21a is deployed in the second direction D ₂ .

The cleaning sheet 1 according to the first embodiment is not particularly limited, and can be manufactured, for example, as shown in FIG.
The first sheet laminate 101 constituting the first sheet 23, the second sheet laminate 103 forming the second sheet 25, and the third sheet 27 are attached to the base sheet 21 to which the grip portion forming sheet 41 is fused. The third sheet laminate 105 constituting the third sheet, the fourth sheet laminate 107 constituting the fourth sheet 29, the fifth sheet laminate 109 constituting the fifth sheet 31, and the sixth sheet 33 constituting the fifth sheet 31. The sheet laminate 111, the seventh sheet laminate 113 constituting the seventh sheet 35, the eighth sheet laminate 115 constituting the eighth sheet 37, and the ninth sheet laminate 117 constituting the ninth sheet 39. Are arranged in the first direction D ₁ at a predetermined pitch P in that order.

Gripper forming sheet 41, the base sheet 21, and the first sheet laminate for 101 to ninth sheet stack 117, it passes through the center of the orthogonal direction D _C, the first direction center line extending in the first direction D ₁ The fused sheet 119 is formed by fusing along CL ₁ to form the fused portion 11. Next, the hot melt adhesive 121 is applied to the end portions (unmarked) of the sheets constituting the first sheet laminate 101 to the ninth sheet laminate 117 of the fused sheet 119. Next, the fused sheet 119 is folded at the fused portion 11, and the portions of the first sheet laminate 101 to the ninth sheet laminate 117 coated with the hot melt adhesive 121 are bonded to each other. By adhering, the cleaning sheet 1 is formed.

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

6 and 7 are diagrams for explaining the cleaning sheet 1 according to another embodiment of the present disclosure (hereinafter, referred to as “second embodiment”). Specifically, FIG. 6 is a perspective view of the front, plane, and left side of the cleaning sheet 1 in the unfolded state. FIG. 7 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 a handy cleaning tool 151 (see FIG. 5). 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 5 in the unfolded state and a single laminated structure 3 in the undeployed state. Can be formed. Further, in the cleaning sheet 1 according to the second embodiment, the cleaning sheet portion 5 has a cleaning sheet portion angle of about 180 ° in the deployed state.

The cleaning sheet 1 in the unfolded state (the cleaning sheet portion 5) 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 portions 5) 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 3) 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 201b, 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.

As shown in FIG. 6, the cleaning sheet 1 in the unfolded state includes a base sheet 201 and a plurality of sheets, that is, four sheets including the first sheet 211, the second sheet 213, the third sheet 215, and the fourth sheet 217. It has a seat and.
The base sheet 201 is divided into a base sheet first portion 201a and a base sheet second portion 201b by a fusing portion 203 intermittently extending in the first direction D ₁ at the center of the second direction D _2. There is.

The base sheet 201 includes a grip portion forming sheet 221 for forming the grip portion 13 arranged on a surface opposite to the first sheet 211 to the fourth sheet 217. Specifically, the grip portion forming sheet 221 is provided with the grip portion forming sheet first portion 221 a by the fusion portion 203 intermittently extending in the first direction D ₁ at the center of the second direction D ₂ . It is partitioned by the second portion 221b of the grip portion forming sheet, and the base sheet first portion 201a and the base sheet second portion 201b are respectively on the surfaces opposite to the first sheet 211 to the fourth sheet 217. The first portion 221a of the grip portion forming sheet for forming the grip portion 13 arranged and the grip portion 13 arranged on the surface opposite to the first sheet 211 to the fourth sheet 217 are formed. The second portion 221b of the grip portion forming sheet is provided.
The cleaning sheet 1 according to the second embodiment includes a fusing portion 15 for a grip portion similar to the cleaning sheet 1 according to the first embodiment. Since the fusing portion 15 for the grip portion is a known portion, the description thereof will be omitted.

Each of the grip portion forming sheet 221 and the first sheet 211 to the fourth sheet 217 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 201 is made of a spunbonded non-woven fabric made of heat-sealing fibers.

In the cleaning sheet 1 in the unfolded state, each of the first sheet 211 to the fourth sheet 217 extends in a direction parallel to the second direction D ₂ as a whole (developed in a direction parallel to the second direction D _2). The first sheet 211 to the fourth sheet 217 are arranged in the first direction D ₁ at a predetermined pitch P in that order. Since each of the first sheet 211 to the fourth sheet 217 has a length slightly shorter than the predetermined pitch P in the first direction D ₁ , the first sheet 211 to the fourth sheet 217 have a slight interval. It is placed open.

The first sheet 211 includes a first fixed end portion 231 and a first free end portion 233, and is arranged at an end portion of the second direction unidirectional D _21. One first end portion region 235. And the other first end region 237 arranged at the end of the second direction other direction D ₂₂ .

The first sheet 211 has a first bellows structure 241 that is alternately folded back in one direction D ₁₁ in the first direction and D _{12 in the} other direction D ₁₂ in the first direction by a folded portion (not marked) of 15. doing. Specifically, the first sheet 211 is folded back alternately in the first direction and the other direction D ₁₂ in the second direction and the other direction D ₂₂ and then in the first direction and the other direction D ₁₁ at a total of 15 folding portions. It has a first bellows structure 241.

The first sheet 23 is divided into nth portions (n = 1 to 16) of the first sheet by 15 folded portions (not marked), and the first sheets at both ends constituting the first bellows structure 241. The first portion 211a and the first sheet 16th portion 211b correspond to one first end region 235 and the other first end region 237, respectively, and the first sheet first portion 211a and the first sheet 16th. Each of the portions 211b is connected to the base sheet 201 as a first fixed end portion 231. Specifically, the first sheet first portion 211a and the first sheet 16th portion 211b are connected to the base sheet first portion 201a and the base sheet second portion 201b as the first fixed end portion 231 respectively. ..
The second sheet 213 to the fourth sheet 217 have a second bellows structure 243 to a fourth bellows structure 247, similarly to the first sheet 211. Detailed description of the second sheet 213 to the fourth sheet 217 will be omitted.

As shown in FIG. 7, in the cleaning sheet 1 in the undeployed state, a plurality of sheets, that is, the first sheet, are formed between the base sheet first portion 201a and the base sheet second portion 201b in the thickness direction T. Four sheets including the sheets 211 to the fourth sheet 217 are arranged.
Similar to the cleaning sheet 1 in the unfolded state, in the cleaning sheet 1 in the undeployed state, the first sheets 211 to the fourth sheets 217 are arranged in the first direction D ₁ at a predetermined pitch P in that order. Is.
In the first sheet 211, in the thickness direction T, the first sheet first portion 211a to the first sheet 16th portion 211b are laminated in that order. The second sheet 213 to the fourth sheet 217 are the same as the first sheet 211.

As shown in FIG. 7, the cleaning sheet 1 in the undeployed state makes the base sheet 201 (base sheet first portion 201a and base sheet second portion 201b) more than a plurality of sheets (particularly, fourth sheet 217). , A pair of unfolding grips 89 formed by forming a long portion on the D ₁₂ side in the first direction and the other direction. Since the pair of unfolding grips 89 (base sheet first portion 201a and base sheet second portion 201b) are separated by a predetermined distance d in the thickness direction T, the user can use the pair of unfolding grips 89. It is easy to deploy the cleaning sheet 1 by grasping.

A pair of unfolding grips 89 of the cleaning sheet 1 (laminated structure 3) in the undeployed state are gripped, and the second direction D _{2 is} specifically so as to move the base sheet first portion 21a away from the base sheet second portion 21b. Is deployed in the second direction unidirectional D ₂₁ , and the first sheet 211 to the fourth sheet 217 connected to the base sheet first portion 21a are deployed in the second direction D ₂ .

The cleaning sheet 1 according to the second embodiment forms a folding structure by folding the fusion sheet 119 without forming the (i) fusion sheet 11, and then the folding structure is formed in the first direction D. Manufacture in the same manner as the cleaning sheet 1 according to the first embodiment shown in FIG. 4, except that the fused portion 203 is intermittently formed in ₁ and (ii) the hot melt adhesive 121 is not applied. Can be done.

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

FIG. 8 is a diagram for explaining a cleaning sheet 1 according to still another embodiment of the present disclosure (hereinafter, referred to as “third embodiment”). Specifically, FIG. 8 is a perspective view of the front, plane, and left side of the cleaning sheet 1 in the unfolded state. The cleaning sheet 1 according to the third embodiment has the same shape as the cleaning sheet 1 according to the first embodiment in the undeployed state, and thus is not shown (see FIG. 3).
Since the cleaning sheet 1 according to the third embodiment has many parts similar to the cleaning sheet 1 according to the first embodiment, the shape and the like of the cleaning sheet 1 according to the first embodiment are appropriately cited and the third embodiment is followed. The cleaning sheet 1 will be described.

The cleaning sheet 1 according to the third embodiment is a cleaning sheet used by being attached to the handy cleaning tool 151. 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 5 in the unfolded state and a single laminated structure in the undeployed state (FIG. (Not shown) and can be formed. Further, in the cleaning sheet 1 according to the third embodiment, the cleaning sheet portion 5 has a cleaning sheet portion angle of about 180 ° in the unfolded state.

The cleaning sheet 1 in the unfolded state (the cleaning sheet portion 5) 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 portions 5) 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.

As shown in FIG. 8, the cleaning sheet 1 in the unfolded state includes the base sheet 21 and a plurality of sheets, that is, the first sheet 23, the second sheet 25, the third sheet 27, the fourth sheet 29, and the fifth sheet. It includes nine sheets including 31, the sixth sheet 33, the seventh sheet 35, the eighth sheet 37, and the ninth sheet 39.

The base sheet 21 (base sheet first portion 21a and base sheet second portion 21b) and the grip portion forming sheet 41 (grip portion forming sheet first portion 41a and grip portion forming sheet second portion 41b) are Since it is the same as the first embodiment, the description thereof will be omitted.
Each of the grip portion forming sheet 41 and the first sheet 23 to the ninth sheet 39 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 21 is made of a spunbonded non-woven fabric made of heat-sealing fibers.

In the cleaning sheet 1 in the unfolded state, each of the first sheet 23 to the ninth sheet 39 extends in a direction parallel to the second direction D ₂ as a whole (developed in a direction parallel to the second direction D _2). The first sheet 23 to the ninth sheet 39 are arranged in the first direction D ₁ at a predetermined pitch P in that order. Since each of the first sheet 23 to the ninth sheet 39 has substantially the same length as the predetermined pitch P in the first direction D ₁ , the interval between the first sheet 23 to the ninth sheet 39 is approximately 0. Is.

In the cleaning sheet 1 according to the third embodiment, the odd-numbered sheets (that is, the first sheet 23, the third sheet 27, the fifth sheet 31, the seventh sheet 35, and the ninth sheet 39) constituting the plurality of sheets are It has the same shape as the first sheet 23 (and the second sheet 25 to the ninth sheet 39) of the cleaning sheet 1 according to the first embodiment. That is, the odd-numbered sheets are folded back in the second direction and the other direction D ₂₂ alternately in the first direction and the other direction D ₁₂ and then in the first direction and the other direction D ₁₁ at a total of 11 folding portions.
Note that FIG. 8 shows a part of the first folded portion 301 of 11 which is the folded portion of the first sheet 23, but the third sheet 27, the fifth sheet 31, the seventh sheet 35 and the ninth sheet are shown. The folded portion of the sheet 39 is omitted.

On the other hand, in the cleaning sheet 1 according to the third embodiment, the even-numbered sheets (that is, the second sheet 25, the fourth sheet 29, the sixth sheet 33, and the eighth sheet 37) constituting the plurality of sheets are the first embodiment. a first sheet 23 of the cleaning sheet 1 according to embodiment (and the second sheet 25 to the ninth sheet 39), the relation of plane symmetry with respect to a plane passing through the orthogonal direction D _C and the thickness direction T. In other words, the even-numbered sheet in the second direction the other direction D _22, the first direction one-way D _11, then, are folded at folded portions of the alternating meter 11 in the first direction other direction D _12.

Note that FIG. 8 shows a part of the second folded-back portion 303 of 11 which is the folded-back portion of the second sheet 25, but the folded-back portion of the fourth sheet 29, the sixth sheet 33, and the eighth sheet 37. Is omitted.
Therefore, in the cleaning sheet 1 according to the third embodiment, the odd-numbered sheet and the even-numbered sheet are arranged so that the folded portions face each other.

In the cleaning sheet 1 according to the third embodiment, the and the odd-numbered sheet, the and the even-numbered sheet, folded portions facing each other in (excluding folded portion arranged in the center in the perpendicular direction D _C), hot melt They are joined to each other by the adhesive 305.
The cleaning sheet 1 according to the third embodiment is excellent in cleanability of the surface to be cleaned.

FIG. 9 is a diagram for explaining a cleaning sheet 1 according to still another embodiment of the present disclosure (hereinafter, referred to as “fourth embodiment”). Specifically, FIG. 9 is a perspective view of the front, plane, and left side of the cleaning sheet 1 in the unfolded state.

The cleaning sheet 1 according to the fourth embodiment is a cleaning sheet used by being attached to a handy cleaning tool 151 (see FIG. 5). 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 an unfolded state, and specifically, a single cleaning sheet portion 5 in the unfolded state can be formed. In the cleaning sheet 1 according to the fourth embodiment, the cleaning sheet portion 5 has a cleaning sheet portion angle of about 180 ° in the unfolded state.
The cleaning sheet 1 according to the fourth embodiment does not form a non-deployed state.

The cleaning sheet 1 in the unfolded state (the cleaning sheet portion 5) 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. Since the cleaning sheet 1 (the cleaning sheet portions 5) 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 explanation is omitted.

As shown in FIG. 9, the cleaning sheet 1 in the unfolded state includes the base sheet 401 and a plurality of sheets, that is, the first sheet 403, the second sheet 405, the third sheet 407, the fourth sheet 409, and the fifth sheet. It includes 9 sheets including 411, 6th sheet 413, 7th sheet 415, 8th sheet 417 and 9th sheet 419.

The base sheet 401 includes a grip portion forming sheet 421 for forming a grip portion (not shown) arranged on a surface opposite to the first sheet 403 to the ninth sheet 419. Since the grip portion forming sheet 421 is the same as the grip portion forming sheet 41 in the first embodiment, the description thereof will be omitted.

Each of the grip portion forming sheet 421 and the first sheet 403 to the ninth sheet 419 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 401 is made of a spunbonded non-woven fabric made of heat-sealing fibers.

In the cleaning sheet 1 in the unfolded state, each of the first sheet 403 to the ninth sheet 419 extends in a direction parallel to the second direction D ₂ as a whole (developed in a direction parallel to the second direction D _2). The first sheet 403 to the ninth sheet 419 are arranged in the first direction D ₁ at a predetermined pitch P in that order.

Each of the first sheet 403 to the ninth sheet 419 has an arc shape having a central angle of 180 ° or more and an arc shape formed by the strings. The bow shape is divided into a semicircular portion and a residual portion.
In FIG. 9, the first semicircular portion 423 and the first residual portion 425 forming the first bow-shaped shape, which is the bow-shaped shape of the first sheet 403, are shown, but the second sheet 405 to The bow-shaped code of the ninth sheet 419 is omitted.

Each of the first sheet 403 to the ninth sheet 419 has a fixed end portion and a free end portion, and the remaining portion constitutes the fixed end portion.
Further, each of the first sheet 403 to the ninth sheet 419 is arranged at one end region arranged at the end of the second direction unidirectional D ₂₁ and at the end on the second direction other direction D ₂₂ side. It has the other end region.

In each of the first sheet 403 to the ninth sheet 419, the fixed end portion is connected to the base sheet 401, and in each of the first sheet 403 to the ninth sheet 419, the free end portion is one end portion. The region and the other end region are connected to the base sheet 401.

Further, in each of the first sheet 403 to the ninth sheet 419, the free end portion is connected to the base sheet 401 in one end region and the other end region.
In FIG. 9, the fixed end portion, the free end portion, one end region, and the other end region of the first sheet 403 are the first fixed end portion 427 and the first free end portion 429, respectively. , One first end region 431 and the other first end region 433 are shown, but their reference numerals of the second sheet 405 to the ninth sheet 419 are omitted.
The cleaning sheet 1 according to the fourth embodiment is excellent in cleanability of the surface to be cleaned.

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 when the combination of the base sheet and a plurality of sheets is referred to as a cleaning sheet portion.
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 the first direction, the second direction, the orthogonal direction, and the like. In this case, the cleaning sheet is, for example, a plurality of cleaning sheet portions, and each base sheet of the plurality of cleaning sheet portions is continuously or at a predetermined distance on a separate sheet (for example, a gripping sheet) or the like. It may be separated and connected, and the base sheets of a plurality of cleaning sheet portions are connected, for example, the base sheets of a plurality of cleaning sheet portions are composed of an integral sheet. You may.

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 arranged 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 is, for example, such that the base sheets of the plurality of cleaning sheet portions face each other (so that the plurality of sheets of the plurality of cleaning sheet portions face opposite sides). It can be concatenated.

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 ° (for example, each of the two cleaning sheet portions has a cleaning sheet portion angle of 180 °). ), The cleaning sheet can be formed as follows.
・ First cleaning sheet part (including base sheet and multiple sheets)
・ Second cleaning sheet part (including base sheet and multiple sheets)

The first cleaning sheet portion and the second cleaning sheet portion are connected so that their base sheets face each other (for example, the base sheet of the first cleaning sheet portion and the base sheet of the second cleaning sheet portion are connected). ..
Examples of the connection include an adhesive portion, a heat-sealing fiber-bonded portion, and the like.

In the cleaning sheet (cleaning sheet portion) of the present disclosure, each of the plurality of sheets extends in a direction along the second direction, and the plurality of sheets are arranged in order in the first direction.
The plurality of sheets are not particularly limited as long as they are arranged in order in the first direction, and can be arranged at a predetermined pitch P, for example. When each of the plurality of sheets has a predetermined length in the first direction, for example, the length of each of the plurality of sheets in the first direction is made equal to the pitch P, and the first of the plurality of sheets The distance between the sheets adjacent to each other in the direction may be set to 0.

In the cleaning sheet (cleaning sheet portion) of the present disclosure, each of the plurality of sheets includes a fixed end portion and a free end portion. In addition, each of the plurality of sheets has one end region and the other end region arranged at both ends in the second direction.

In the cleaning sheet (cleaning sheet portion) of the present disclosure, the one end region and the other end region are ends in the circumferential direction or the second direction of the cleaning sheet.
For example, when the cleaning sheet partial angle is 180 ° (when the base sheet is arranged on a flat surface), one end region and the other end region are in the second direction of the cleaning sheet. It is an end, and when the cleaning sheet portion angle is other than 180 °, one end region and the other end region are the ends of the cleaning sheet in the second direction.

In each of the plurality of sheets, the fixed end is connected to the base sheet, and the free end is, in principle, located farther from the base sheet than the fixed end.
At the fixed end portion, each of the plurality of sheets can be connected to the base sheet by means known in the art, for example, an adhesive portion, a heat-sealing fiber-bonded portion, or the like. ..

In at least a portion of the plurality of sheets (preferably 40% or more, more preferably 60% or more, even more preferably 80% or more, and even more preferably 100%), the free end is one end region. And in the other end region, it is connected to the base sheet. As a result, when the cleaning sheet is moved in the first direction to clean the surface to be cleaned, the end fixing sheet prevents a plurality of sheets from falling over, so that the cleaning sheet is excellent in cleanability of the surface to be cleaned. ..
In one end region and the other end region, the free end portion is attached to the base sheet by means known in the art, for example, an adhesive portion, a heat-sealing fiber-bonded portion. Etc. can be connected.

In the cleaning sheet (cleaning sheet portion) of the present disclosure, each of the plurality of sheets can have an arbitrary shape without particular limitation.
In the cleaning sheet (cleaning sheet portion) of the present disclosure, at least a part of a plurality of sheets (preferably 40% or more, more preferably 60% or more, still more preferably 80% or more, and even more preferably 100%). However, it can be a bellows structure sheet having a bellows structure that is alternately folded back in one direction in the first direction and another direction in the first direction, which are formed by a plurality of folded portions.

Further, in the bellows structure sheet, the sheet portions at both ends forming the bellows structure can form one end region and the other end region.
In this case, the sheet portions at both ends forming the bellows structure form a fixed end portion and a free end portion of the sheet as one end region and the other end region.

As a result, the area becomes larger than that of the sheet having no bellows structure, and when the surface to be cleaned is cleaned while moving the cleaning sheet in the first direction, it is possible to prevent the plurality of sheets from falling in the first direction. And when cleaning the surface to be cleaned while moving the cleaning sheet in the second direction, a certain sheet part among the sheet parts constituting the bellows structure sheet cleaned the surface to be cleaned and became dirty. Even in this case, a new sheet portion adjacent to a certain sheet portion can clean the surface to be cleaned.

Among the plurality of sheets, the bellows structure sheet may not be connected to adjacent sheets adjacent to each other in the first direction, and may be connected to each other. Further, when the bellows structure sheet is connected to the adjacent sheet, at least a part (preferably 40% or more, more preferably 60% or more, still more preferably 80% or more, and even more preferable) of the plurality of folded portions. Is preferably connected to the adjacent sheet in 100% number).
As a result, when cleaning the surface to be cleaned while moving the cleaning sheet in the first direction, the bellows structure sheet can prevent the plurality of sheets from falling in the first direction.
The bellows structure sheet can be connected to an adjacent sheet by means known in the art, for example, an adhesive, fusion of heat-sealing fibers, or the like.

In the cleaning sheet (cleaning sheet portion) of the present disclosure, at least a part of the plurality of sheets is alternately folded back in one direction in the first direction forming the first direction and in the other direction in the first direction by the plurality of folded portions. It may not be, for example, a single folded sheet that is folded in one direction in the first direction or another direction in the first direction by a single folded portion, and a non-folded sheet that is not folded. There may be.
The single folded sheet and the non-folded sheet are not particularly limited, and may have a fan shape, for example, a perfect circular elliptical shape, an elliptical fan shape, or the like.
The single folded sheet and the non-folded sheet are likely to come into surface contact with the surface to be cleaned.

The single folded sheet or the non-folded sheet may not be connected to the adjacent sheet adjacent to the first direction among the plurality of sheets, and may be connected. As a result, when cleaning the surface to be cleaned while moving the cleaning sheet in the first direction, the single-folded sheet or the non-folded sheet can prevent a plurality of sheets from falling in the first direction.
The single folded sheet or the non-folded sheet can be connected to the adjacent sheet by means known in the art, for example, an adhesive portion, a heat-sealing fiber-bonded portion, or the like.

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 a base sheet is folded with a plurality of sheets sandwiched between them.

When the cleaning sheet of the present disclosure is a wet type and the cleaning sheet can be in the 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 sheets 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 deploying grips may project outward (for example, in the first direction) of the cleaning sheet from the plurality of sheets of the cleaning sheet in the undeployed state. Preferably, the pair of deployable grips are more preferably arranged apart by a predetermined distance, and the pair of deployable grips is even more preferably made of a hydrophobic fabric.

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 is further provided with a cleaning tool or a member for a grip portion for gripping by the user, the cleaning sheet partial 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 is used as a cleaning tool or a gripping portion for the user to grip, the cleaning sheet partial angle can be 360 °.

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

In addition, the base sheet and the plurality of sheets 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 and a plurality of sheets, and may form the base sheet and the plurality of sheets in a state of being attached to another sheet-like material, for example, the above-mentioned cloth. can do. In other words, each of the base sheet and the plurality of sheets 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 one surface or the other surface of the laminated net sheet.

At least a part, for example, all of the base sheet and the plurality of sheets can contain heat-sealing fibers. As a result, the fixed end portion, the free end portion, and the like 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 and the plurality of sheets 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, it is relatively easy to scrape 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 cloth include spunlace non-woven fabric and spunbond non-woven fabric. When the cleaning sheet is a dry type, the plurality of sheets can include spunlace non-woven fabric, spunbond non-woven fabric and the like.

When the cleaning sheet is a wet type, the base sheet and the plurality of sheets can include a spunlace non-woven fabric, a 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.
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 grip portion on the surface of the base sheet opposite to the plurality of sheets. Can have. 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.

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.

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 a plurality of sheets 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.

1 Cleaning sheet 3 Laminated structure 5 Cleaning sheet part 11 Fusion part 13 Grip part 15 Fusing part for grip part 21 Base sheet 21a Base sheet 1st part 21b Base sheet 2nd part 23 1st sheet 25 2nd sheet 27 3rd Sheet 29 4th sheet 31 5th sheet 33 6th sheet 35 7th sheet 37 8th sheet 39 9th sheet 41 Grip part forming sheet 41a Grip part forming sheet 1st part 41b Grip part forming sheet 2nd part 43 1st bellows structure 45 2nd bellows structure 47 3rd bellows structure 49 4th bellows structure 51 5th bellows structure 53 6th bellows structure 55 7th bellows structure 57 8th bellows structure 59 9th bellows structure 71 1st fixed end 73 1st free end 81 2nd fixed end 83 2nd free end 89 Deployment grip D ₁ 1st direction D ₁₁ 1st direction 1 direction D ₁₂ 1st direction Other direction D ₂ 2nd direction D ₂₁ 1st Two directions One direction D ₂₂ Second direction Other direction D _C Orthogonal direction D _{C 1} Orthogonal direction One direction D _{C 2} Orthogonal direction Other direction T Thickness direction T ₁ Thickness direction One direction T ₂ Thickness direction Other direction

Claims (7)

A cleaning sheet comprising a base sheet and a plurality of sheets, and having a first direction and a second direction forming a circumferential direction of the first direction.
Each of the plurality of sheets extends in a direction along the second direction, and the plurality of sheets are arranged in order in the first direction.
Each of the plurality of sheets has a fixed end portion and a free end portion, and also has one end region and the other end region.
In each of the plurality of sheets, the fixed end portion is connected to the base sheet.
In at least a portion of the plurality of sheets, the free end is connected to the base sheet in one end region and the other end region.
The cleaning sheet, characterized in that. A bellows structure sheet having a bellows structure in which at least a part of the plurality of sheets is alternately folded back in one direction in a first direction and another direction in the first direction constituting the first direction by a plurality of folded portions. The cleaning sheet according to claim 1, wherein the sheet portions at both ends forming the bellows structure constitute the one end region and the other end region. The cleaning sheet according to claim 2, wherein the bellows structure sheet is connected to a sheet adjacent to the first direction of the plurality of sheets at least a part of the plurality of folded parts. The cleaning sheet according to any one of claims 1 to 3, wherein at least a part of the plurality of sheets is a non-folded sheet that is not folded in the first direction. The cleaning sheet according to claim 4, wherein at least a part of the non-folded sheet is connected to a sheet adjacent to the first direction of the plurality of sheets. The cleaning sheet according to any one of claims 1 to 5, wherein the cleaning sheet is configured to be in a non-deployed state. The cleaning sheet according to claim 6, wherein the cleaning sheet is a wet type, and in the non-deployed state, the cleaning sheet is separated by a predetermined distance and includes a pair of unfolding grip portions.

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