CN113543686A - Cleaning sheet - Google Patents
Cleaning sheet Download PDFInfo
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- CN113543686A CN113543686A CN202080018891.7A CN202080018891A CN113543686A CN 113543686 A CN113543686 A CN 113543686A CN 202080018891 A CN202080018891 A CN 202080018891A CN 113543686 A CN113543686 A CN 113543686A
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- Prior art keywords
- sheet
- cleaning sheet
- cleaning
- sheets
- folded
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L13/00—Implements for cleaning floors, carpets, furniture, walls, or wall coverings
- A47L13/10—Scrubbing; Scouring; Cleaning; Polishing
- A47L13/16—Cloths; Pads; Sponges
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L13/00—Implements for cleaning floors, carpets, furniture, walls, or wall coverings
- A47L13/10—Scrubbing; Scouring; Cleaning; Polishing
- A47L13/20—Mops
Landscapes
- Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
- Lubricants (AREA)
Abstract
The purpose of the present disclosure is to provide a cleaning sheet having excellent cleaning properties on a surface to be cleaned. The cleaning sheet of the present disclosure has the following structure. A cleaning sheet (1) characterized in that a plurality of sheets (23-39) each extend in a direction along a second direction (D2) and are arranged in sequence in a first direction (D1), the plurality of sheets (23-39) each have a fixed end (71, 81) and a free end (73, 83), and have one end region (75, 85) and the other end region (77, 87), the fixed end (71, 81) is connected to a base sheet (21) in each of the plurality of sheets (23-39), and the free end (73, 83) is connected to the base sheet (21) in the one end region (75, 85) and the other end region (77, 87) in at least a part of the plurality of sheets (23-39).
Description
Technical Field
The present disclosure relates to a cleaning sheet.
Background
Due to the increased hygiene awareness, disposable cleaning sheets are commercially available. In addition, various types of cleaning sheets have been developed.
For example, patent document 1 discloses a cleaning tool including a base sheet and a grip member having a grip and an insertion portion inserted into the base sheet, wherein the base sheet has a mounting surface attached to the insertion portion and a wiping surface located on the opposite side thereof, and has a multilayer structure in which a plurality of sheets are stacked in a thickness direction, and at least a part of the sheets facing each other in the thickness direction among the plurality of sheets is folded in a direction different from each other in the thickness direction.
Documents of the prior art
Patent document
Patent document 1: japanese patent laid-open publication No. 2017-118963
Disclosure of Invention
Problems to be solved by the invention
The cleaning tool described in patent document 1 has a laminated structure in which a plurality of sheets are laminated, and cleans a surface to be cleaned with a wiping surface facing downward, and although a sheet constituting the wiping surface among the plurality of sheets forming the laminated structure contributes to cleaning of the surface to be cleaned, other sheets among the plurality of sheets forming the laminated structure may not contribute to cleaning of the surface to be cleaned.
Accordingly, an object of the present disclosure is to provide a cleaning sheet having excellent cleaning performance of a surface to be cleaned.
Means for solving the problems
The present inventors have made a cleaning sheet including a base sheet and a plurality of sheets, each of the plurality of sheets extending in a direction along a second direction and having a first direction and a second direction constituting a circumferential direction of the first direction, the plurality of sheets being arranged in order in the first direction, the plurality of sheets each including a fixed end and a free end and having one end region and another end region, the fixed end being coupled to the base sheet in each of the plurality of sheets, and the free end being coupled to the base sheet in the one end region and the another end region in at least a part of the plurality of sheets.
ADVANTAGEOUS EFFECTS OF INVENTION
The cleaning sheet of the present disclosure has excellent cleaning performance on a surface to be cleaned.
Drawings
Fig. 1 is a diagram for explaining a cleaning sheet 1 according to a 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 of the first embodiment.
Fig. 5 is a perspective view of a hand-held cleaning tool 151 for the cleaning sheet 1.
Fig. 6 is a diagram for explaining the cleaning sheet 1 of the second embodiment.
Fig. 7 is a diagram for explaining the cleaning sheet 1 of the second embodiment.
Fig. 8 is a diagram for explaining the cleaning sheet 1 of the third embodiment.
Fig. 9 is a diagram for explaining the cleaning sheet 1 of the fourth embodiment.
Detailed Description
[ definitions ]
"non-expanded state" and "expanded state" relating to the cleaning sheet "
In the present specification, "non-expanded state" and "expanded state" relating to the cleaning sheet are terms used in a case where the cleaning sheet can adopt two different states as a principle.
Specifically, the "non-expanded state" refers to a state in which the cleaning sheet is not expanded and is used during storage or the like, and the "expanded state" refers to a state in which the cleaning sheet is used for cleaning the surface to be cleaned.
In the present specification, the cleaning sheet includes a cleaning sheet that does not adopt the "non-deployed state". In the cleaning sheet not in the "non-developed state", the cleaning sheet will be described in a state corresponding to the developed state even when it is not particularly mentioned. In addition, even if the cleaning sheet in the "non-deployed state" is not used, from the viewpoint of easy understanding, a state used for cleaning the surface to be cleaned may be described as the "deployed state".
"first direction", "second direction", "orthogonal direction", and "thickness direction"
In this specification, the "first direction" is divided into a first direction one direction and a first direction other direction. The "second direction" is a direction constituting a circumferential direction of the first direction, and is divided into a second direction one direction and a second direction other direction. The "orthogonal direction" is a direction orthogonal to the first direction, and is disposed on the substrate. The "orthogonal direction" is divided into an orthogonal direction one direction and an orthogonal direction other 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.
Angle of cleaning sheet "
In the present specification, the "cleaning sheet portion angle" refers to an angle in the second direction of the cleaning sheet portion of the cleaning sheet in the unfolded state. For example, when the cleaning sheet includes a single cleaning sheet portion, the cleaning sheet portion angle is an angle formed by sandwiching a plurality of sheets by the base sheet. Note that, in the case where the substrate is located on a plane, the cleaning sheet portion angle is 180 °.
In addition, for example, in the case where 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 prescribed direction"
In the present specification, the "direction along the prescribed direction" refers to a direction having an intersection angle of preferably less than 45 °, more preferably 30 ° or less, further preferably 20 ° or less, and further preferably 5 ° or less with the prescribed direction.
In the present specification, the "direction parallel (or parallel) to the predetermined direction" means a direction having an intersection angle of 5 ° or less with the predetermined direction.
Examples of the predetermined direction include a first direction, a second direction, an orthogonal direction, and a thickness direction.
Specifically, the present disclosure relates to the following aspects.
[ scheme 1]
A cleaning sheet comprising a base sheet and a plurality of sheets, and having a first direction and a second direction constituting a circumferential direction of the first direction,
the plurality of pieces extending in a direction along the second direction, respectively, and being arranged in order in the first direction,
the plurality of sheets each having a fixed end and a free end and having one end region and another end region,
in each of the plurality of sheets, the fixed end portion is connected to the base sheet,
in at least a part of the plurality of sheets, the free end portion is connected to the base sheet in the one end region and the other end region.
The cleaning sheet has a plurality of pieces extending in a direction along the second direction, the plurality of pieces being arranged in order in the first direction, and one end edge and the other end edge of at least some of free end portions of the plurality of pieces being connected to the base sheet. Therefore, when the cleaning sheet is moved in the first direction and the surface to be cleaned is cleaned, even when dirt adheres to one of the plurality of sheets when the surface to be cleaned is cleaned, the adjacent sheet adjacent to the one sheet can clean the surface to be cleaned. Among the plurality of sheets, the sheet connected to the base sheet in one end region and the other end region (hereinafter, may be referred to as "end fixing sheet") can suppress the plurality of sheets from falling down in the first direction.
Thus, when the cleaning sheet is moved in the first direction to clean the cleaning surface, a new cleaning surface can be supplied, and the end fixing piece can suppress the plurality of sheets from falling down, so that the cleaning sheet is excellent in cleaning performance of the surface to be cleaned.
[ scheme 2]
The cleaning sheet according to claim 1, wherein at least a part of the plurality of sheets is a corrugated structure sheet having a corrugated structure that is alternately folded back in a first direction and in another first direction constituting the first direction by a plurality of folded-back portions, and sheet portions forming both ends of the corrugated 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 corrugated sheet having a predetermined corrugated structure. Therefore, the corrugated structured sheet (i) can be made larger in area than a sheet having no corrugated structure, (ii) can suppress the plurality of sheets from falling down in the first direction when the cleaning sheet is moved in the first direction to clean the surface to be cleaned, and (iii) can clean the surface to be cleaned even when one of the sheet portions constituting the corrugated structured sheet cleans the surface to be cleaned and dirt adheres thereto, and an adjacent sheet portion adjacent to the one sheet portion can clean the surface to be cleaned.
This makes the cleaning sheet excellent in cleaning performance of the surface to be cleaned.
[ scheme 3]
The cleaning sheet according to claim 2, wherein the corrugated structure sheet is connected to a sheet adjacent to the plurality of sheets in the first direction at least in a part of the plurality of folded portions.
In the cleaning sheet, the corrugated structure sheet is connected to a sheet adjacent to the sheet in the first direction in at least a part of the plurality of folded portions. Therefore, when the cleaning sheet is moved in the first direction and the surface to be cleaned is cleaned, the corrugated structured sheet can prevent the plurality of sheets from falling down in the first direction, and the cleaning sheet is excellent in the cleaning performance of the surface to be cleaned.
[ scheme 4]
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 back 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, and therefore, when the cleaning sheet is moved in the first direction and the surface to be cleaned is cleaned, the sheet that is not folded back in the first direction is likely to come 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 performance of the surface to be cleaned per reciprocation of the cleaning sheet is excellent.
[ scheme 5]
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 plurality of sheets in the first direction.
In the cleaning sheet, at least a part of the non-folded sheet is connected to a sheet adjacent in the first direction. Therefore, when the cleaning sheet is moved in the first direction and the surface to be cleaned is cleaned, the non-folded sheet can prevent the plurality of sheets from falling in the first direction, and the cleaning sheet is excellent in the cleaning performance of the surface to be cleaned.
[ scheme 6]
The cleaning sheet according to any one of claims 1 to 5, wherein the cleaning sheet is configured to be capable of adopting a non-expanded state.
The cleaning sheet is configured to be capable of adopting a non-expanded state, and therefore, the cleaning sheet can be made compact before or after use.
[ scheme 7]
The cleaning sheet according to claim 6, wherein the cleaning sheet is wet, and the cleaning sheet has a pair of spreading grips separated by a predetermined distance in the non-spread state.
The cleaning sheet is provided with a predetermined pair of unfolding grips, and therefore is easily unfolded from a non-unfolded state to an unfolded state.
Fig. 1 to 4 are views for explaining a cleaning sheet 1 according to an embodiment of the present disclosure (hereinafter, referred to as "first embodiment"). Specifically, fig. 1 is a perspective view of the front, the plane, and the left side of the cleaning sheet 1 in the unfolded state. Fig. 2 is a perspective view of the back surface, bottom surface, and left side surface of the cleaning sheet 1 in the unfolded state. Fig. 3 is a perspective view of the cleaning sheet 1 in a non-expanded state on the front, flat, and left side surfaces. Fig. 4 is a diagram for explaining a method of manufacturing the cleaning sheet 1.
Fig. 5 is a perspective view of the hand-held cleaning tool 151 for the cleaning sheet 1.
The cleaning sheet 1 of the first embodiment is used by being attached to the hand-held cleaning tool 151. The cleaning sheet 1 of the first embodiment is a wet cleaning sheet containing a chemical solution. The cleaning sheet 1 can be formed into a non-developed state and a developed state, specifically, a single cleaning sheet portion 5 in the developed state and a single laminated structure 3 in the non-developed state. In addition, in the cleaning sheet 1 of the first embodiment, the cleaning sheet portion 5 has a cleaning sheet portion angle of about 180 ° in the developed state.
In the cleaning sheet 1 in the developed state, the thickness direction T is the first direction1Downstream, the other direction T of the thickness direction2Downstream, first direction-direction D11And the other direction D of the first direction12The state of the cleaning sheet 1 as viewed downstream is treated as front, back, flat, and bottom surfaces, respectively.
The cleaning sheet 1 in the non-developed state is the same as the cleaning sheet 1 in the developed state, except that the base sheet first portion 21a side is a front surface and the base sheet second portion 21b side is a rear surface.
The cleaning sheet 1 (cleaning sheet part 5) in the developed state has a first direction D1Orthogonal direction DCAnd a thickness direction T and a first direction D1In a second circumferential direction D2. First direction D1Are divided into mutually opposite directions, i.e. a first direction and a direction D11And a first direction and a second direction D12In the orthogonal direction DCAre divided into mutually opposite directions, i.e. orthogonal directions-directions DC1And another direction D orthogonal to the directionC2The thickness direction T is divided into mutually opposite directions, i.e., thickness direction directionsT1And the other direction T of the thickness direction2. Second direction D2Are divided into mutually opposite directions, i.e. a second direction, a direction D21And a second direction D22. In the second direction D2Orthogonal direction D in plan viewCAnd (5) the consistency is achieved.
The cleaning sheet 1 (laminated structure 3) in the non-developed state has a first direction D such that the cleaning sheet 1 (cleaning sheet portion 17) in the developed state and a substrate second portion 21b described later have the same direction1Orthogonal direction DCAnd a thickness direction T and a second direction D2。
The cleaning sheet 1 (the laminated structure 3, see fig. 3) in the non-developed state is formed by moving the substrate first portion 21a in the second direction D away from the substrate second portion 21b2The cleaning sheet 1 (cleaning sheet portion 5, see fig. 1 and 2) is formed in an expanded state, and the cleaning sheet 1 in the expanded state is used for cleaning a surface to be cleaned. In other words, the cleaning sheet 1 (cleaning sheet portion 5) in the developed state can be oriented in the second direction D2The cleaning sheet 1 (laminated structure 3) in the non-expanded state can be formed by upward folding.
As shown in fig. 1 and 2, the cleaning sheet 1 in the developed state includes a base sheet 21 and a plurality of sheets, that is, 9 sheets including a first sheet 23, a second sheet 25, a third sheet 27, a fourth sheet 29, a fifth sheet 31, a sixth sheet 33, a seventh sheet 35, an eighth sheet 37, and a ninth sheet 39.
The substrate 21 passes in the second direction D2Is in a first direction D1The extended fusion 11 is divided into a substrate first portion 21a and a substrate second portion 21 b.
The base sheet 21 includes a grip portion forming sheet 41 for forming the grip portion 13, which is disposed on the surface opposite to the first to ninth sheets 23 to 39. Specifically, the grip forming piece 41 passes in the second direction D2Is in a first direction D1The extended fusion part 11 is divided into a first part 41a of a sheet for forming a grip part and a second part 41b of a sheet for forming a grip part, and the first part 21a and the second part 21b of the base sheet are respectively arranged on the first sheet 23First grip portion forming piece portions 41a for forming the grip portions 13 on the surface on the opposite side to the ninth piece 39, and second grip portion forming piece portions 41b for forming the grip portions 13 arranged on the surface on the opposite side to the first piece 23 to the ninth piece 39.
In addition, a grip portion welding portion 15 is formed in 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 so as to form a grip portion 13 for gripping the cleaning sheet mounting portion 153a and the cleaning sheet mounting portion 153b of the hand-held cleaning tool 151. The grip welding portion 15 is a known portion, and therefore, description thereof is omitted.
Each of the grip portion forming sheet 41 and the first to ninth sheets 23 to 39 is made of a spunlace nonwoven fabric including heat-fusible fibers and water-retentive fibers, and contains a chemical solution. Further, the base sheet 21 is composed of a spunbonded nonwoven fabric composed of heat-fusible fibers.
In the cleaning sheet 1 in the developed state, each of the first to ninth sheets 23 to 39 as a whole is oriented in the second direction D2Extending in parallel directions (in a direction D parallel to the second direction)2Spread in parallel directions), and the first to ninth pieces 23 to 39 are sequentially in the first direction D1Are arranged at a predetermined pitch P. The first to ninth pieces 23 to 39 are arranged in the first direction D1Since the distance P is substantially the same as the predetermined pitch P, the interval between the first to ninth pieces 23 to 39 is substantially 0.
The first sheet 23 has a first fixed end 71 and a first free end 73, and is disposed in the second direction and the first direction D21And a first end region 75 arranged in the second direction D22The other first end region 77 of the lateral end.
The first sheet 23 has 11 folded portions (not denoted by reference numerals) extending in a first direction D11And a first direction and a second direction D12First corrugations 43 which are alternately folded back. Specifically, the first sheet 23 has another direction D in the second direction22Upward to the other direction D of the first direction12Then, the first direction is followed by the second direction11And a first corrugated structure 43 alternately folded back at a total of 11 folded-back portions.
In the cleaning sheet 1 (laminated structure 17) in the non-developed state, 11 folded portions (not denoted by reference numerals) are arranged in the second direction D2Extending and extending substantially along the first direction D in the cleaning sheet (cleaning sheet part 19) in the unfolded state1Extending in orthogonal directions.
The first sheet 23 is divided into first sheet nth portions (n is 1 to 12) by 11 folded portions (no reference numeral), first sheet first portions 23a and first sheet twelfth portions 23b constituting both ends of the first corrugated structure 43 correspond to one first end region 75 and the other first end region 77, respectively, and the first sheet first portions 23a and the first sheet twelfth portions 23b are connected to the base sheet 21 as first fixed end portions 71, respectively. Specifically, the first piece first portion 23a and the first piece twelfth portion 23b are connected to the substrate first portion 21a and the substrate second portion 21b as the first fixed end portion 71, respectively.
The second piece 25 includes a second fixed end portion 81 and a second free end portion 83, and is arranged in the second direction D in the same manner as the first piece 2321And one second end region 85 arranged in the second direction D22Another second end region 87. The second sheet 25 has 11 folded portions (not denoted by reference numerals) extending in the first direction D11And a first direction and a second direction D12In the second corrugated structure 45 which is folded alternately, the second sheet 25 is divided into the nth part (n is 1 to 12) of the second sheet by 11 folded parts (no reference numeral) similarly to the first sheet 23.
The second sheet first portion 25a and the second sheet twelfth portion 25b constituting both ends of the second corrugated structure 45 correspond to one second end region 85 and the other second end region 87, respectively, and are connected to the base sheet 21 as the second fixed end 81. Specifically, the second piece first portion 25a and the second piece twelfth portion 25b are connected to the substrate first portion 21a and the substrate second portion 21b, respectively.
The third to ninth sheets 27 to 39 have third to ninth corrugations 47 to 59, similarly to the first sheet 23. The detailed description of the third to ninth plates 27 to 39 is omitted.
As shown in fig. 3, in the cleaning sheet 1 in the non-developed state, a plurality of sheets, that is, 9 sheets including the first sheet 23 to the ninth sheet 39 are arranged between the base sheet first portion 21a and the base sheet second portion 21b in the thickness direction T.
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 in this order1This arrangement at the predetermined pitch P is the same as the cleaning sheet 1 in the developed state.
In the first sheet 23, the first sheet first portion 23a to the first sheet twelfth portion 23b are laminated in this order in the thickness direction T. In the second sheet 25, the second sheet first portion 25a to the second sheet twelfth portion 25b are laminated in this order in the thickness direction T. The third to ninth sheets 27 to 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 non-developed state is provided with a plurality of base sheets 21 (base sheet first portion 21a and base sheet second portion 21b) which are arranged to be shifted in a first direction D from a plurality of sheets (particularly, ninth sheet 39)12A pair of extended grip portions 89 formed to be long. Since the pair of spreading gripping portions 89 are separated by the predetermined distance d in the thickness direction T, the user can easily grip the pair of spreading gripping portions 89 and spread the cleaning sheet 1.
When the pair of expansion gripping parts 89 of the cleaning sheet 1 (laminated structure 3) in the non-expanded state is gripped, the substrate first portion 21a is moved in the second direction D so as to be away from the substrate second portion 21b2Specifically the second direction and the first direction D21When the first to ninth sheets 23 to 39 connected to the first base sheet portion 21a are developed, the sheets are respectively oriented in the second direction D2And (4) unfolding.
The cleaning sheet 1 of the first embodiment is not particularly limited, and can be manufactured as shown in fig. 4, for example.
Sequentially in a first direction D on the base sheet 21 to which the holding part forming sheet 41 is welded1Is arranged at a predetermined pitch P to form a firstThe first sheet laminate 101 of the sheet 23, the second sheet laminate 103 of the second sheet 25, the third sheet laminate 105 of the third sheet 27, the fourth sheet laminate 107 of the fourth sheet 29, the fifth sheet laminate 109 of the fifth sheet 31, the sixth sheet laminate 111 of the sixth sheet 33, the seventh sheet laminate 113 of the seventh sheet 35, the eighth sheet laminate 115 of the eighth sheet 37, and the ninth sheet laminate 117 of the ninth sheet 39.
The sheet 41 for forming a grip portion, the base sheet 21, and the laminates 101 to 117 for the first to ninth sheets are arranged along the passing orthogonal direction DCIn a first direction D1Extended first direction center line CL1Welding is performed to form the welded portion 11, thereby forming the welded piece 119. Next, a hot melt adhesive 121 is applied to an end portion (no reference numeral) of the welding sheet 119 that constitutes each of the first to ninth laminates 101 to 117, and then the welding sheet 119 is folded at the welding portion 11 to bond the portions of the first to ninth laminates 101 to 117 to which the hot melt adhesive 121 is applied, thereby forming the cleaning sheet 1.
The cleaning sheet 1 of the first embodiment is excellent in cleaning performance of the surface to be cleaned. Further, the cleaning sheet 1 of the first embodiment can adopt the extended state and the non-extended state, and is excellent in compactness.
Fig. 6 and 7 are views for explaining a cleaning sheet 1 according to another embodiment (hereinafter, referred to as "second embodiment") of the present disclosure. Specifically, fig. 6 is a perspective view of the front, the plane, and the left side of the cleaning sheet 1 in the expanded state. Fig. 7 is a perspective view of the cleaning sheet 1 in a non-expanded state on the front, flat, and left side surfaces.
The cleaning sheet 1 of the second embodiment is a cleaning sheet used by being attached to a handheld cleaning tool 151 (see fig. 5). The cleaning sheet 1 of the second embodiment is a wet cleaning sheet containing a chemical solution. The cleaning sheet 1 can be formed into a non-developed state and a developed state, specifically, a single cleaning sheet portion 5 in the developed state and a single laminated structure 3 in the non-developed state. In addition, in the cleaning sheet 1 of the second embodiment, the cleaning sheet portion 5 has a cleaning sheet portion angle of about 180 ° in the unfolded state.
The cleaning sheet 1 (cleaning sheet part 5) in the unfolded state has first directions D orthogonal to each other1Orthogonal direction DCAnd a thickness direction T and a second direction D2. First direction D in cleaning sheet 1 (cleaning sheet part 5) in the developed state1Orthogonal direction DCAnd a thickness direction T and a second direction D2As in the first embodiment. The cleaning sheet 1 (laminated structure 3) in the non-developed state has a first direction D such that the cleaning sheet 1 (cleaning sheet portion 17) in the developed state and a substrate second portion 201b described later have the same direction1Orthogonal direction DCAnd a thickness direction T and a second direction D2。
As shown in fig. 6, the cleaning sheet 1 in the developed state includes a base sheet 201 and a plurality of sheets, that is, 4 sheets including a first sheet 211, a second sheet 213, a third sheet 215, and a fourth sheet 217.
The substrate 201 passes in the second direction D2Is in a first direction D1The intermittently extending welds 203 are divided into substrate first portions 201a and substrate second portions 201 b.
The base sheet 201 includes a grip portion forming sheet 221 for forming the grip portion 13, which is disposed on the surface opposite to the first sheet 211 to the fourth sheet 217. Specifically, the grip forming piece 221 passes in the second direction D2Is in a first direction D1The intermittently extending fusion-bonded portion 203 is divided into a grip forming piece first portion 221a and a grip forming piece second portion 221b, and the base piece first portion 201a and the base piece second portion 201b respectively include a grip forming piece first portion 221a for forming the grip 13 disposed on a surface opposite to the first piece 211 to the fourth piece 217 and a grip forming piece second portion 221b for forming the grip 13 disposed on a surface opposite to the first piece 211 to the fourth piece 217.
The cleaning sheet 1 of the second embodiment includes the same welding portion 15 for gripping portion as the cleaning sheet 1 of the first embodiment. The grip welding portion 15 is a known portion, and therefore, description thereof is omitted.
Each of the grip portion forming sheet 221 and the first to fourth sheets 211 to 217 is formed of a spunlace nonwoven fabric including heat-fusible fibers and water-retentive fibers, and contains a chemical solution. Further, the base sheet 201 is composed of a spunbond nonwoven fabric composed of heat-fusible fibers.
In the cleaning sheet 1 in the developed state, each of the first to fourth sheets 211 to 217 as a whole is oriented in the second direction D2Extending in parallel directions (in a direction D parallel to the second direction)2Spread in parallel directions), and the first to fourth slices 211 to 217 are sequentially in the first direction D1Are arranged at a predetermined pitch P. The first to fourth pieces 211 to 217 are arranged in the first direction D1Since the first to fourth pieces 211 to 217 have a length slightly shorter than the predetermined pitch P, they are arranged at intervals.
The first piece 211 includes a first fixed end 231 and a first free end 233, and is disposed in the second direction and the first direction D21And a first end region 235 arranged in the second direction and the other direction D22Another first end region 237 of the end of (a).
The first sheet 211 has 15 folded portions (not denoted by reference numerals) extending in a first direction D11And a first direction and a second direction D12First corrugations 241 which are alternately folded back. Specifically, the first sheet 211 has another direction D in the second direction22Upward to the other direction D of the first direction12Then, the first direction is followed by the second direction11And a first corrugated structure 241 which is alternately folded back at a total of 15 folded-back portions.
The first sheet 23 is divided into first sheet nth portions (n is 1 to 16) by 15 folded portions (no reference numeral), the first sheet first portion 211a and the first sheet sixteenth portion 211b constituting both ends of the first corrugated structure 241 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 sixteenth portion 211b are connected to the base sheet 201 as first fixed ends 231, respectively. Specifically, the first piece first portion 211a and the first piece sixteenth portion 211b are connected to the base piece first portion 201a and the base piece second portion 201b as the first fixed end 231, respectively.
The second to fourth sheets 213 to 217 have the second to fourth corrugated structures 243 to 247, similarly to the first sheet 211. The detailed description of the second to fourth plates 213 to 217 is omitted.
As shown in fig. 7, in the cleaning sheet 1 in the non-developed state, a plurality of sheets, that is, 4 sheets including the first sheet 211 to the fourth sheet 217 are arranged between the first base sheet portion 201a and the second base sheet portion 201b in the thickness direction T.
In the cleaning sheet 1 in the non-developed state, the first sheet 211 to the fourth sheet 217 are arranged in the first direction D in this order1This arrangement at the predetermined pitch P is the same as the cleaning sheet 1 in the developed state.
In the first sheet 211, a first sheet first portion 211a to a first sheet sixteenth portion 211b are laminated in this order in the thickness direction T. The second to fourth pieces 213 to 217 are the same as the first piece 211.
As shown in fig. 7, the cleaning sheet 1 in the non-developed state is provided with a cleaning sheet formed by arranging the base sheet 201 (the base sheet first portion 201a and the base sheet second portion 201b) in the first direction D and the other direction D with respect to the plurality of sheets (particularly, the fourth sheet 217)12A pair of extended grip portions 89 formed to be long. Since the pair of spreading grips 89 (the first substrate portion 201a and the second substrate portion 201b) are separated by the predetermined distance d in the thickness direction T, the user can easily spread the cleaning sheet 1 by gripping the pair of spreading grips 89.
When the pair of expansion gripping parts 89 of the cleaning sheet 1 (laminated structure 3) in the non-expanded state is gripped, the substrate first portion 21a is moved in the second direction D so as to be away from the substrate second portion 21b2Specifically the second direction and the first direction D21When the first to fourth sheets 211 to 217 connected to the first portion 21a of the base sheet are developed, the first to fourth sheets 211 to 217 are oriented in the second direction D2And (4) unfolding.
The cleaning sheet 1 of the second embodiment is formed by folding the welding sheet 119 to form a folded structure except for (i) the welding portion 11 is not formed, and (ii) the cleaning sheet is then foldedIn a first direction D on a folded structure1The cleaning sheet 1 according to the first embodiment shown in fig. 4 can be manufactured in the same manner except that the welded portions 203 are intermittently formed and (ii) the hot-melt adhesive 121 is not applied.
The cleaning sheet 1 of the second embodiment is excellent in the cleaning performance of the surface to be cleaned, as in the cleaning sheet 1 of the first embodiment. The cleaning sheet 1 of the second embodiment can be in the expanded state and the non-expanded state, and is excellent in compactness.
Fig. 8 is a diagram for explaining a cleaning sheet 1 according to still another embodiment (hereinafter, referred to as "third embodiment") of the present disclosure. Specifically, fig. 8 is a perspective view of the front, the plane, and the left side of the cleaning sheet 1 in the expanded state. The cleaning sheet 1 of the third embodiment has the same shape as the cleaning sheet 1 of the first embodiment in the non-expanded state, and therefore, illustration thereof is omitted (see fig. 3).
The cleaning sheet 1 of the third embodiment is similar to the cleaning sheet 1 of the first embodiment in many parts, and therefore the cleaning sheet 1 of the third embodiment will be described with reference to the shape and the like of the cleaning sheet 1 of the first embodiment as appropriate.
The cleaning sheet 1 of the third embodiment is a cleaning sheet used by being attached to the hand-held cleaning tool 151. The cleaning sheet 1 of the first embodiment is a wet cleaning sheet containing a chemical solution. The cleaning sheet 1 can be formed into a non-developed state and a developed state, specifically, a single cleaning sheet portion 5 in the developed state and a single laminated structure (not shown) in the non-developed state. In addition, in the cleaning sheet 1 of the third embodiment, the cleaning sheet portion 5 has a cleaning sheet portion angle of about 180 ° in the developed state.
The cleaning sheet 1 (cleaning sheet part 5) in the unfolded state has first directions D orthogonal to each other1Orthogonal direction DCAnd a thickness direction T and a second direction D2. First direction D in cleaning sheet 1 (cleaning sheet part 5) in the developed state1Orthogonal direction DCAnd a thickness direction T and a second direction D2Same as the first embodiment。
As shown in fig. 8, the cleaning sheet 1 in the developed state includes a base sheet 21 and a plurality of sheets, that is, 9 sheets including a first sheet 23, a second sheet 25, a third sheet 27, a fourth sheet 29, a fifth sheet 31, a sixth sheet 33, a seventh sheet 35, an eighth sheet 37, and a ninth sheet 39.
The substrate 21 (substrate first portion 21a and substrate second portion 21b) and the grip forming piece 41 (grip forming piece first portion 41a and grip forming piece second portion 41b) are the same as those of the first embodiment, and therefore, the description thereof is omitted.
Each of the grip portion forming sheet 41 and the first to ninth sheets 23 to 39 is made of a spunlace nonwoven fabric including heat-fusible fibers and water-retentive fibers, and contains a chemical solution. Further, the base sheet 21 is composed of a spunbonded nonwoven fabric composed of heat-fusible fibers.
In the cleaning sheet 1 in the developed state, each of the first to ninth sheets 23 to 39 as a whole is oriented in the second direction D2Extending in parallel directions (in a direction D parallel to the second direction)2Spread in parallel directions), and the first to ninth pieces 23 to 39 are sequentially in the first direction D1Are arranged at a predetermined pitch P. The first to ninth pieces 23 to 39 are arranged in the first direction D1Since the distance P is substantially the same as the predetermined pitch P, the interval between the first to ninth pieces 23 to 39 is substantially 0.
In the cleaning sheet 1 of the third embodiment, the odd-numbered sheets (i.e., 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 have the same shape as the first sheet 23 (and the second to ninth sheets 25 to 39) of the cleaning sheet 1 of the first embodiment. That is, the odd-numbered pieces are arranged in the other direction D of the second direction22Upward to the other direction D of the first direction12Then, the first direction is followed by the second direction11The folded portions were alternately folded back at a total of 11 folded-back portions.
In fig. 8, although a part of 11 first folded portions 301 which are folded portions of the first sheet 23 are shown, folded portions of the third sheet 27, the fifth sheet 31, the seventh sheet 35, and the ninth sheet 39 are omitted.
On the other hand, in the cleaning sheet 1 of the third embodiment, the second even number of sheets (i.e., the second sheet 25, the fourth sheet 29, the sixth sheet 33, and the eighth sheet 37) constituting the plurality of sheets and the first sheet 23 (and the second to ninth sheets 25 to 39) of the cleaning sheet 1 of the first embodiment pass through the orthogonal direction DCAnd the plane in the thickness direction T is in a plane-symmetric relationship. In other words, the even-numbered pieces are arranged in the other direction D of the second direction22Upward in a first direction D11Then, the first direction is followed by another direction D12The folded portions were alternately folded back at a total of 11 folded-back portions.
In fig. 8, although a part of the 11 second folded portions 303 are shown as folded portions of the second sheet 25, the folded portions of the fourth sheet 29, the sixth sheet 33, and the eighth sheet 37 are omitted.
Therefore, in the cleaning sheet 1 of the third embodiment, the odd-numbered pieces and the even-numbered pieces are arranged so that the folded portions face each other.
In the cleaning sheet 1 of the third embodiment, the odd-numbered pieces and the even-numbered pieces are arranged at the turn-back portions facing each other (except in the orthogonal direction D)CExcept for the central folded portion) are joined to each other by a hot-melt adhesive 305.
The cleaning sheet 1 of the third embodiment is excellent in cleaning performance of the surface to be cleaned.
Fig. 9 is a diagram for explaining a cleaning sheet 1 according to still another embodiment (hereinafter, referred to as "fourth embodiment") of the present disclosure. Specifically, fig. 9 is a perspective view of the front, the plane, and the left side of the cleaning sheet 1 in the expanded state.
The cleaning sheet 1 of the fourth embodiment is a cleaning sheet used by being attached to a handheld cleaning tool 151 (see fig. 5). The cleaning sheet 1 of the fourth embodiment is a wet cleaning sheet containing a chemical solution. The cleaning sheet 1 can be formed in an unfolded state, specifically, a single cleaning sheet portion 5 in the unfolded state can be formed. In the cleaning sheet 1 of the fourth embodiment, the cleaning sheet portion 5 has a cleaning sheet portion angle of about 180 ° in the developed state.
The cleaning sheet 1 according to the fourth embodiment is not in the non-deployed state.
The cleaning sheet 1 (cleaning sheet part 5) in the unfolded state has a first direction D orthogonal to each other1Orthogonal direction DCAnd a thickness direction T and a second direction D2. First direction D in cleaning sheet 1 (cleaning sheet part 5) in the developed state1Orthogonal direction DCAnd a thickness direction T and a second direction D2Since the same as the first embodiment, the description thereof is omitted.
As shown in fig. 9, the cleaning sheet 1 in the developed state includes a base sheet 401 and a plurality of sheets, that is, 9 sheets including a first sheet 403, a second sheet 405, a third sheet 407, a fourth sheet 409, a fifth sheet 411, a sixth sheet 413, a seventh sheet 415, an eighth sheet 417, and a ninth sheet 419.
The base sheet 401 includes a grip portion forming sheet 421 for forming a grip portion (not shown) disposed on the surface opposite to the first sheet 403 to the ninth sheet 419. The grip portion forming piece 421 is the same as the grip portion forming piece 41 in the first embodiment, and therefore, the description thereof is omitted.
Each of the grip portion forming sheet 421 and the first to ninth sheets 403 to 419 is formed of a spunlace nonwoven fabric containing heat-fusible fibers and water-retentive fibers, and contains a chemical solution. Further, the base sheet 401 is composed of a spunbond nonwoven fabric composed of heat-fusible fibers.
In the cleaning sheet 1 in the unfolded state, the first sheet 403 to the ninth sheet 419 are formed integrally with each other in the second direction D2Extending in parallel directions (in a direction D parallel to the second direction)2Spread in parallel directions), and the first to ninth pieces 403 to 419 are sequentially in the first direction D1Are arranged at a predetermined pitch P.
The first to ninth pieces 403 to 419 have an arcuate shape formed by a circular arc chord having a central angle of 180 ° or more, respectively. The arcuate shape is divided into a semicircular portion and a remaining portion.
In fig. 9, the first semicircular portion 423 and the first surplus portion 425 constituting the first arcuate shape which is the arcuate shape of the first sheet 403 are shown, but the arcuate shapes of the second to ninth sheets 405 to 419 are not denoted by reference numerals.
The first to ninth pieces 403 to 419 have a fixed end and a free end, respectively, and the remaining portions constitute the fixed end.
The first to ninth pieces 403 to 419 are arranged in the second direction and the first direction D21And arranged in a second direction D22The other end region of the lateral end.
In each of the first to ninth pieces 403 to 419, the fixed end portion is coupled to the base sheet 401, and in each of the first to ninth pieces 403 to 419, the free end portion is coupled to the base sheet 401 in one end region and the other end region.
In each of the first to ninth sheets 403 to 419, the free end portion is joined to the base sheet 401 in one end region and the other end region.
In fig. 9, although the fixed end portion, the free end portion, the first end portion region, and the other end portion region of the first sheet 403, i.e., the first fixed end portion 427, the first free end portion 429, the first end portion region 431, and the other first end portion region 433 are shown, these reference numerals of the second sheet 405 to the ninth sheet 419 are omitted.
The cleaning sheet 1 of the fourth embodiment is excellent in cleaning performance of the surface to be cleaned.
The cleaning sheet of the present disclosure includes a first direction and a second direction constituting 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 a circumferential direction of the first direction, but this does not mean that an orthogonal cross section of the cleaning sheet in the unfolded state, which is orthogonal to the first direction, has an arc shape along the second direction (for example, the orthogonal cross section is a circle, a sector, or the like).
The cleaning sheet of the present disclosure in the expanded state can be, for example, a curved shape (e.g., an arc, an elliptical arc), a linear shape, any combination thereof, or the like along the second direction.
The cleaning sheet of the present disclosure may include one or more cleaning sheet portions in the case where a combination of the base sheet and the 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 a plurality of cleaning sheet portions in any form. The cleaning sheet may include a plurality of cleaning sheet portions arranged continuously or at a predetermined distance in a first direction, a second direction, an orthogonal direction, or the like. In this case, the cleaning sheet may be a cleaning sheet in which the plurality of cleaning sheet portions are connected to each other continuously or at a predetermined distance from a separate sheet (for example, a holding sheet) or the like, or may be a cleaning sheet in which the plurality of cleaning sheet portions are connected to each other, for example, the plurality of cleaning sheet portion substrates are formed of an integral sheet.
The plurality of cleaning sheet parts of the cleaning sheet can be disposed on, for example, a single-side cleaning surface of a single-side cleaning type floor cleaning tool, and can be disposed on both cleaning surfaces of a double-side cleaning type floor cleaning tool.
The cleaning sheet may include a plurality of cleaning sheet portions arranged continuously or at a predetermined distance from each other in the second direction, for example. In this case, the cleaning sheet may be formed by connecting the plurality of cleaning sheet portions such that the base sheets of the plurality of cleaning sheet portions face each other (such that the plurality of sheets of the plurality of cleaning sheet portions face the opposite side).
For example, in the case where the cleaning sheet includes the following two cleaning sheet portions and the two cleaning sheet portions have a cleaning sheet portion angle of 360 ° in total (for example, the two cleaning sheet portions are each a cleaning sheet portion angle of 180 °), the cleaning sheet may be formed as follows.
A first cleaning sheet part (including a base sheet and a plurality of sheets)
Second cleaning sheet part (comprising a base sheet and a plurality of sheets)
The first cleaning sheet portion and the second cleaning sheet portion are joined such 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 joined).
Examples of the connection include an adhesive portion using an adhesive and a fusion portion using a thermal fusion fiber.
In the cleaning sheet (cleaning sheet portion) of the present disclosure, a plurality of sheets extend in the direction along the second direction, respectively, 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 may be arranged at a predetermined pitch P, for example. When each of the plurality of pieces has a predetermined length in the first direction, for example, the length of each of the plurality of pieces in the first direction may be equal to the pitch P, and the interval between pieces adjacent to each other in the first direction among the plurality of pieces may be set to 0.
In the cleaning sheet (cleaning sheet portion) of the present disclosure, the plurality of sheets each have a fixed end portion and a free end portion. The plurality of sheets have one end region and the other end region disposed at both ends in the second direction, respectively.
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, in the case where the cleaning sheet part angle is 180 ° (in the case where the base sheet is arranged on a plane), the one end region and the other end region are the ends of the cleaning sheet in the second direction, and in the case where the cleaning sheet part angle is other than 180 °, the 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 portion is connected to the base sheet, and the free end portion is arranged at a position farther from the base sheet than the fixed end portion.
The plurality of sheets can be connected to the base sheet at the fixed end portion by a means known in the art, for example, an adhesive portion using an adhesive or a fusion portion using a heat-fusible fiber.
In at least a part (preferably 40% or more, more preferably 60% or more, further preferably 80% or more, and further preferably 100% of the number of sheets) of the plurality of sheets, the free end portion is joined to the base sheet in one end region and the other end region. Thus, when the cleaning sheet is moved in the first direction to clean the surface to be cleaned, the end fixing piece suppresses the plurality of sheets from falling, and therefore the cleaning sheet is excellent in the cleaning performance of the surface to be cleaned.
In the one end region and the other end region, the free end portion can be connected to the base sheet by means known in the art, for example, an adhesive portion using an adhesive, a fusion portion using a heat-fusible fiber, or the like.
In the cleaning sheet (cleaning sheet portion) of the present disclosure, each of the plurality of sheets may have an arbitrary shape without particular limitation.
In the cleaning sheet (cleaning sheet portion) of the present disclosure, at least a part (preferably 40% or more, more preferably 60% or more, further preferably 80% or more, and further preferably 100% of the number of sheets) of the plurality of sheets may be a corrugated-structure sheet having a corrugated structure that is alternately folded in a first direction and a second direction constituting the first direction by the plurality of folded portions.
In addition, in the corrugated-structured sheet, sheet portions forming both ends of the corrugated structure can constitute one end region and the other end region.
In this case, the sheet portions forming both ends of the corrugated structure constitute the fixed end portion and the free end portion of the sheet as one end region and the other end region.
This makes it possible to suppress the plurality of sheets from falling down in the first direction when the cleaning sheet is moved in the first direction to clean the surface to be cleaned, and to clean the surface to be cleaned by moving the cleaning sheet in the second direction, even when dirt adheres to the surface to be cleaned by cleaning one of the sheet portions constituting the corrugated structured sheet, a new sheet portion adjacent to the one sheet portion can clean the surface to be cleaned.
The corrugated structure sheet may not be joined to the adjacent sheet of the plurality of sheets adjacent in the first direction, and may be joined to the adjacent sheet of the plurality of sheets adjacent in the first direction. When the corrugated structure sheet is connected to the adjacent sheet, the corrugated structure sheet is preferably connected to the adjacent sheet at least in a part (preferably 40% or more, more preferably 60% or more, further preferably 80% or more, and further preferably 100% of the number) of the plurality of folded portions.
Thus, when the cleaning sheet is moved in the first direction to clean the surface to be cleaned, the corrugated structure sheet can prevent the plurality of sheets from falling in the first direction.
The corrugated sheet can be connected to the adjacent sheet by a means known in the art, for example, by an adhesive or by fusion of heat-fusible fibers.
In the cleaning sheet (cleaning sheet portion) of the present disclosure, at least a part of the plurality of sheets may be alternately folded back in the first direction and the other direction constituting the first direction without the plurality of folded-back portions, and for example, may be a single folded-back sheet folded back in the first direction or the other direction by a single folded-back portion, or may be a non-folded-back sheet that is not folded back.
The single folded piece and the non-folded piece are not particularly limited, and may have a fan shape, for example, a perfect circle ellipse, an elliptical fan shape, or the like.
The single folded piece and the non-folded piece are easy to be in surface contact with the surface to be cleaned.
The single folded piece or the non-folded piece may not be connected to an adjacent piece adjacent to the plurality of pieces in the first direction, and may be connected to an adjacent piece adjacent to the plurality of pieces in the first direction. Thus, when the cleaning sheet is moved in the first direction and the surface to be cleaned is cleaned, the single folding sheet or the non-folding sheet can prevent the 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 a means known in the art, for example, an adhesive portion using an adhesive, a welded portion using a heat-fusible fiber, or the like.
The cleaning sheet of the present disclosure may not be in a non-expanded state, may be in a non-expanded state, and preferably may be in a non-expanded state. This makes it possible to make the cleaning sheet compact before or after use.
The cleaning sheet in the non-expanded state may be a cleaning sheet in which a base sheet is folded with a plurality of sheets sandwiched therebetween in a cleaning sheet portion of the cleaning sheet.
When the cleaning sheet of the present disclosure is wet and the cleaning sheet can adopt a non-expanded state, the cleaning sheet in the non-expanded state preferably includes a pair of expansion grips for expanding the cleaning sheet. This is because, when the cleaning sheet is wet, the cleaning sheet in the non-developed state may have a plurality of sheets stuck to each other due to the chemical solution and may be difficult to develop. From the viewpoint of ease of development of the cleaning sheet, the pair of developing grips preferably protrude outward (e.g., in the first direction) of the cleaning sheet from the plurality of sheets of the cleaning sheet in the non-developed state, the pair of developing grips is more preferably disposed at a predetermined distance apart, and the pair of developing grips is further 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 exceeds 0 ° and is 360 ° or less, preferably 150 ° or more. This is from the viewpoint of cleaning performance of the surface to be cleaned.
When the base sheet further includes a member for a grip portion to be gripped by a cleaning tool or a user, the cleaning sheet portion angle is preferably 150 ° or more and less than 360 °. This is from the viewpoint of cleaning performance of the surface to be cleaned.
In addition, in the case where the substrate is used as a holding portion for holding a cleaning tool or a user, the cleaning sheet portion angle may be 360 °.
The cleaning sheet of the present disclosure may be either a wet type or a dry type, and in the cleaning sheet of the present disclosure, the base sheet and the plurality of sheets may include sheets used in the art, for example, a fabric (for example, a nonwoven fabric, a woven fabric, a knitted fabric) without particular limitation. The fabric may be a perforated sheet having a plurality of holes arranged therein, or may be a non-perforated sheet having no holes arranged therein. The perforated sheet may be formed by a water jet method or a needle punching method as described in jp 2017-a 118963.
Additionally, the base sheet and plurality of sheets may comprise a mesh sheet. The mesh sheet may have a mesh structure made of a synthetic resin. The mesh sheet may be constituted by the base sheet and the plurality of sheets alone, or may be constituted by the base sheet and the plurality of sheets in a state of being attached to another sheet-like object, for example, the fabric. In other words, each of the base sheet and the plurality of sheets may be a laminate of a mesh sheet and another sheet (for example, a fabric).
In the laminate of mesh sheets, the mesh sheets may be arranged so as to constitute one surface or the other surface of the laminate of mesh sheets.
At least a portion, for example all, of the base sheet and the plurality of sheets may comprise heat-fusible fibers. This facilitates the formation of the fixed end portion, the free end portion, and the like by the welded portion.
Examples of the heat-fusible fibers include synthetic fibers, for example, heat-fusible fibers, polyolefin polymers, for example, polyethylene or polypropylene; polyester-based polymers such as terephthalate-based polymers such as polyethylene terephthalate (PET), polybutylene terephthalate, and polybutylene terephthalate; polyamide-based polymers such as nylon 6 or nylon 6, 6; an acrylic polymer; a polyacrylonitrile-based polymer; or a modified form thereof, or a combination thereof.
In the cleaning sheet of the present disclosure, at least a part, for example, all, of the base sheet and the plurality of sheets may contain water-retentive fibers. Thus, the cleaning sheet has functions such as easy containing of a chemical liquid and easy absorption of liquid dirt.
Examples of the water-retentive fibers include cellulosic fibers, such as pulp fibers, regenerated cellulose fibers, and semi-synthetic cellulose fibers. Examples of the regenerated cellulose fibers include rayon fibers, such as viscose rayon obtained from viscose, polynosic (polynosic) and modal fibers, and cuprammonium rayon fibers (also referred to as "cuprammonium fibers") obtained from a cuprammonium salt solution of cellulose; lyocell (Lyocell) and Tencel (Tencel) which are obtained by an organic solvent spinning method using an organic solvent which is a mixed solution of an organic compound and water and do not pass through a cellulose derivative.
Examples of the semi-synthetic cellulose fibers include acetate fibers, such as triacetate fibers and diacetate fibers.
The mesh sheet, the perforated sheet, and the non-perforated sheet have a dirt scraping ability in substantially the following relationship depending on the size of the mesh.
Net sheet with hole sheet and non-hole sheet
In the case where the cleaning sheet of the present disclosure includes at least two of the above-described mesh sheet, perforated sheet, and non-perforated sheet, a high-scraping sheet having a relatively high scraping property and a low-scraping sheet having a relatively low scraping property may be arranged as follows from the viewpoint of scraping property of dirt.
(i) In the cleaning sheet portion, high-scraping sheets are arranged (relatively many) at the center, and low-scraping sheets are arranged (relatively many) at the end.
If the high-scraping-property sheet is disposed in the center (relatively many) of the cleaning sheet portion, the high-scraping-property sheet is disposed (relatively many) in a position close to the surface to be cleaned in the unfolded state of the cleaning sheet, and the low-scraping-property sheet is easily disposed (relatively many) in the peripheral edge thereof, so that the high-scraping-property sheet can scrape off dirt, and the low-scraping-property sheet can wipe off dirt, and therefore, the cleaning property of the cleaning sheet is improved.
(ii) When the cleaning sheet is divided into a leading end side region and a base end side region, the high-scraping-property sheets are arranged in the leading end side region (relatively many) and the low-scraping-property sheets are arranged in the base end side region (relatively many).
By disposing the high-scraping-property sheets in the leading-end-side region (relatively many), the leading-end-side region of the cleaning sheet can scrape off dirt, and by disposing the low-scraping-property sheets in the base-end-side region (relatively many), the base-end-side region of the cleaning sheet can wipe off dirt.
The distal end region and the proximal end region may be divided into the cleaning sheet by an orthogonal line extending in a direction orthogonal to the predetermined direction (for example, an orthogonal direction) at the center of the predetermined direction (for example, a first direction). The distal end side region is a region relatively distant from the user, and the proximal end side region is a region relatively close to the user.
Examples of the fabric include spunlace nonwoven fabrics and spunbond nonwoven fabrics. In the case where the cleaning sheet is of a dry type, the plurality of sheets may include a spunlace nonwoven fabric, a spunbond nonwoven fabric, or the like.
In the case where the above-mentioned cleaning sheet is a wet type, the base sheet and the plurality of sheets may include a spunlace nonwoven fabric, a spunbond nonwoven fabric, or the like. In the case where the cleaning sheet is wet, the sheet portions disposed at both ends of the cleaning sheet portion are made of a hydrophobic fabric (for example, a spun-bonded nonwoven fabric made of synthetic fibers) which is a relatively highly hydrophobic fabric, and the sheet portion disposed therebetween is made of a hydrophilic fabric (for example, a spunlace nonwoven fabric including heat-fusible fibers and water-retentive fibers) which is a relatively highly hydrophilic fabric, so that the hydrophilic fabric can contain the chemical solution. Thus, the chemical liquid held by the hydrophilic fabric hardly exceeds the hydrophobic fabric in use, and for example, the chemical liquid held by the hydrophilic fabric hardly exceeds the hydrophobic fabric and comes into contact with a user. Moreover, the chemical liquid held by the hydrophilic fabric is less likely to volatilize beyond the hydrophobic fabric.
The cleaning sheet of the present disclosure may further contain a tow known in the art, and may not contain.
The cleaning sheet of the present disclosure may further include a grip portion for a cleaning tool or a user to grip the cleaning sheet. The grip portion can be disposed at any position of the cleaning sheet.
In the case where 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 opposite to the plurality of sheets may have a grip portion. The grip portion can be formed by, for example, joining, for example, welding, an additional sheet-like member, for example, a grip portion forming sheet, to the base sheet.
The grip portion may be formed of a single grip portion, or may be formed of a plurality of grip portions. For example, by inserting the cleaning sheet mounting portion of the cleaning tool divided into two strands into the two grip portions, or by inserting the thumb, index finger, and little finger of the user into the two grip portions, the cleaning sheet can be prevented from being deviated from the cleaning tool or the hand of the user.
In the case where the cleaning sheet of the present disclosure includes the grip portion, the grip portion may extend in any direction, and from the viewpoint of ease of gripping by a cleaning tool or a user, the grip portion preferably includes an insertion port opening in the first direction and extends in a direction along the first direction.
Preferably, the insertion opening includes an extension portion extending in the first direction, for example, an extension portion extending away from the plurality of pieces in the first direction. This makes it easy for the user to insert the cleaning tool into the grip portion, and also makes it easy for the user to insert a part of the body into the grip portion.
Description of the reference numerals
1 cleaning sheet
3 laminated structure
5 cleaning sheet part
11 fusion splice
13 grip part
15 welding part for holding part
21 substrate
21a first part of the substrate
21b second part of the substrate
23 first sheet
25 second sheet
27 third sheet
29 the fourth tablet
31 the fifth tablet
33 sixth tablet
35 the seventh tablet
37 the eighth tablet
39 ninth tablet
41 sheet for forming grip part
41a first part of sheet for forming grip part
41b second part of sheet for forming grip part
43 first corrugation structure
45 second corrugation structure
47 third corrugation structure
49 fourth corrugation structure
51 fifth corrugation structure
53 sixth corrugation
55 seventh corrugation
57 eighth corrugation
59 ninth corrugation
71 first fixing end
73 first free end
81 second fixed end
83 second free end portion
89 expansion grip part
D1A first direction
D11A first direction and a second direction
D12The first direction is the other direction
D2Second direction
D21Second direction one direction
D22Second direction and the other direction
DCOrthogonal direction
DC1Orthogonal direction one direction
DC2Orthogonal direction and the other direction
T thickness direction
T1One direction of thickness
T2The other direction of the thickness direction
Claims (7)
1. A cleaning sheet having a base sheet and a plurality of sheets and having a first direction and a second direction constituting a circumferential direction of the first direction, characterized in that,
the plurality of pieces extending in a direction along the second direction, respectively, and the plurality of pieces being arranged in order in the first direction,
the plurality of sheets each having a fixed end and a free end and having one end region and another end region,
in each of the plurality of sheets, the fixed end portion is joined to the base sheet,
in at least a portion of the plurality of sheets, the free end portion is joined to the base sheet in the one end region and the other end region.
2. The cleaning sheet according to claim 1,
at least a part of the plurality of sheets is a corrugated-structure sheet having a corrugated structure alternately folded back in a first direction and a second direction constituting the first direction by a plurality of folded-back portions, and sheet portions forming both ends of the corrugated structure constitute the one end region and the other end region.
3. The cleaning sheet according to claim 2,
the corrugated structure sheet is joined to a sheet adjacent to the plurality of sheets in the first direction at least in part of the plurality of folded portions.
4. The cleaning sheet according to any one of claims 1 to 3,
at least a portion of the plurality of patches is a non-folded patch that is not folded back in the first direction.
5. The cleaning sheet according to claim 4,
at least a portion of the non-folded pieces are joined to pieces adjacent in the first direction among the plurality of pieces.
6. The cleaning sheet according to any one of claims 1 to 5,
the cleaning sheet is configured to be capable of adopting a non-unfolded state.
7. The cleaning sheet according to claim 6,
the cleaning sheet is wet, and in the non-expanded state, the cleaning sheet includes a pair of expansion grips separated by a predetermined distance.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019042936A JP7002490B2 (en) | 2019-03-08 | 2019-03-08 | Cleaning sheet |
| JP2019-042936 | 2019-03-08 | ||
| PCT/JP2020/002176 WO2020183924A1 (en) | 2019-03-08 | 2020-01-22 | Cleaning sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113543686A true CN113543686A (en) | 2021-10-22 |
| CN113543686B CN113543686B (en) | 2023-02-17 |
Family
ID=72354975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202080018891.7A Active CN113543686B (en) | 2019-03-08 | 2020-01-22 | Cleaning sheet |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP7002490B2 (en) |
| CN (1) | CN113543686B (en) |
| TW (1) | TWI818147B (en) |
| WO (1) | WO2020183924A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2176723Y (en) * | 1993-08-14 | 1994-09-14 | 施朱吉 | Cleaning material |
| JP2000229053A (en) * | 1999-02-12 | 2000-08-22 | Dainippon Jochugiku Co Ltd | Disposable cleaning tool |
| TWI239827B (en) * | 2000-02-14 | 2005-09-21 | Johnson & Johnson Consumer | Textured film devices |
| US20060143847A1 (en) * | 2004-10-20 | 2006-07-06 | The Procter & Gamble Company | Cleaning articles |
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| CN1839746B (en) * | 2000-07-10 | 2010-06-30 | 尤妮佳股份有限公司 | Cleaning goods |
| CN101677741B (en) * | 2007-05-28 | 2012-06-13 | 花王株式会社 | Cleaning sheet |
| JP2013135726A (en) * | 2011-12-28 | 2013-07-11 | Kikuo Yamada | Cleaning member and cleaning tool |
| JP6323981B2 (en) * | 2013-02-07 | 2018-05-16 | ユニ・チャーム株式会社 | Cleaning tool |
| KR102291963B1 (en) * | 2014-02-17 | 2021-08-23 | 쓰리엠 이노베이티브 프로퍼티즈 캄파니 | Scouring article and methods of making and using |
| JP2020075059A (en) * | 2018-11-09 | 2020-05-21 | ユニ・チャーム株式会社 | Cleaning head for cleaner, cleaner with that cleaning head, application of cleaning sheet to that cleaner, and cleaning sheet for that cleaner |
| JP2020075060A (en) * | 2018-11-09 | 2020-05-21 | ユニ・チャーム株式会社 | Cleaning head for cleaner, cleaner with that cleaning head, application of cleaning sheet to that cleaner, and cleaning sheet for that cleaner |
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- 2020-01-22 WO PCT/JP2020/002176 patent/WO2020183924A1/en active Application Filing
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| US6957924B1 (en) * | 2000-02-14 | 2005-10-25 | Johnson & Johnson Consumer Companies, Inc. | Textured film devices |
| US20060143847A1 (en) * | 2004-10-20 | 2006-07-06 | The Procter & Gamble Company | Cleaning articles |
| US20060254013A1 (en) * | 2005-05-13 | 2006-11-16 | Unicharm Corporation | Water-disintegrable cleaning tool |
| US20080028560A1 (en) * | 2006-08-07 | 2008-02-07 | Nicola John Policicchio | Duster system for damp and dry dusting |
| CN101888804A (en) * | 2007-12-27 | 2010-11-17 | 花王株式会社 | Cleaning sheet |
| CN102164529A (en) * | 2008-09-09 | 2011-08-24 | 山田菊夫 | Cleaning sheet |
| CN104688140A (en) * | 2015-04-05 | 2015-06-10 | 高尚义 | Book type cleaning cloth |
| JP2017118963A (en) * | 2015-12-28 | 2017-07-06 | ユニ・チャーム株式会社 | Cleaning tool |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020183924A1 (en) | 2020-09-17 |
| CN113543686B (en) | 2023-02-17 |
| TWI818147B (en) | 2023-10-11 |
| TW202041187A (en) | 2020-11-16 |
| JP7002490B2 (en) | 2022-01-20 |
| JP2020142009A (en) | 2020-09-10 |
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