Pet sheet and packaging body

Abstract

A pet sheet (1) is provided with a main body section (10) having a front surface sheet (2), a back surface sheet (3), and an absorbent body (4). A bonding surface (7a) for bonding to the processing sheet (100) is provided on the back surface (3a) of the back surface sheet (3) in a state of being exposed to the outside. The main body part (10) is provided with a bending line (L1) which is used for folding the main body part (10) in half in a manner that the back surface (3a) becomes the inner side. The bonding surface (7a) is configured so as to hold only a first portion (11) of the body section (10) in a folded state in which the body section (10) is folded along the fold line (L1) such that the first portion (11) located on one side with respect to the fold line (L1) is located above a second portion (12) located on the other side with respect to the fold line (L1). The second portion (12) is naturally separated from the first portion (11) and the folded state is released.

Description

Technical Field

[0001] The present disclosure relates to pet tablets and packaging. Background Art

[0002] Conventionally, there is known an animal excrement disposal sheet (hereinafter referred to as a "disposal sheet") for disposing excrement excreted by pets such as dogs (see, for example, Patent Document 1).

[0003] Prior art literature

[0004] Patent Literature

[0005] Patent Document 1: Japanese Patent Application Publication No. 2003-92940 Summary of the invention

[0006] Problem that the invention aims to solve

[0007] There is a tendency for pets such as dogs to defecate while avoiding urine marks on the treatment sheet. Therefore, there is a problem that the pet tries to avoid urine marks and urinates in an abnormal urination posture, resulting in urination outside the treatment sheet. In order to avoid such a problem, many users replace the treatment sheet with a new sheet even though there is still a usable blank area (an area that can absorb new urine) on the treatment sheet. However, replacing the still usable treatment sheet with a new sheet is inappropriate from the perspective of environmental protection, and the user himself will also feel guilty.

[0008] As a method for eliminating the above-mentioned problem, a method is known in which a mother sheet (processing sheet) and a child sheet (a pet sheet smaller than the mother sheet) are used in combination, and when the pet excretes (urinates) on the child sheet, only the child sheet is replaced. According to this method, since a processing sheet can be used for a longer time than before, it is possible to seek improvements from the perspectives of environmental protection and the user's mental health. On the other hand, in order to stick the pet sheet on the processing sheet as described above, the following certain operations are generated: the pet sheet is taken out from a packaging body, etc., so that the state of the pet sheet is made to be able to be stuck to the processing sheet, and on this basis, the pet sheet is stuck to the processing sheet. If the labor time of such an operation is large, the user will feel burdened by the act of sticking the pet sheet, and it may not be possible to promote the use of the pet sheet.

[0009] Therefore, one aspect of the present disclosure is to provide a pet film and a package for storing the pet film, which can effectively reduce the labor time of a user when using the pet film, thereby promoting the use of the pet film.

[0010] Solutions for solving problems

[0011] The pet sheet of one aspect of the present disclosure is used overlapping with the excrement absorbing area of ​​an animal excrement disposal sheet for absorbing animal excrement, wherein the pet sheet includes a main body portion, the main body portion having a liquid-permeable surface sheet, a back sheet located on the opposite side of the surface sheet, and an absorbent body arranged between the surface sheet and the back sheet, the back sheet having a back surface facing the opposite side of the side opposite to the surface sheet, a bonding surface for bonding with the animal excrement disposal sheet is provided on the back surface in a state exposed to the outside, a bending line for folding the main body portion in a manner such that the back surface becomes an inner side is formed in the main body portion, and the bonding surface is configured so that when only the first part of the main body portion is maintained in a folded state along the bending line so that the first part of the main body portion is located above the second part of the main body portion, the second part is naturally separated from the first part to release the folded state, the first part is a part of the main body portion located on one side relative to the bending line, and the second part is a part of the main body portion located on the other side relative to the bending line.

[0012] A pet sheet according to another aspect of the present disclosure is used overlapping with an excrement absorbing area of ​​an animal excrement disposal sheet for absorbing animal excrement, wherein the pet sheet comprises a main body portion, the main body portion having a liquid-permeable surface sheet, a back sheet located on the opposite side of the surface sheet, and an absorbent body arranged between the surface sheet and the back sheet, the back sheet having a back side facing the opposite side of the side opposite to the surface sheet, a bonding surface for bonding with the animal excrement disposal sheet being provided on the back side in a state exposed to the outside, a bending line is formed in the main body portion so as to enable the main body portion to be folded in half with the back side becoming the inner side, the bonding surface being arranged so that, in a folded state along the bending line, a part of the bonding surface arranged in a first part of the main body portion located on one side relative to the bending line is opposite to a part of the bonding surface arranged in a second part of the main body portion located on the other side relative to the bending line, and an edge portion of the main body portion parallel to the bending line is formed by a wing portion where no absorbent body is present.

[0013] A packaging body according to another aspect of the present disclosure is a packaging body that accommodates a plurality of pet sheets, the pet sheets being used to overlap with an excrement-absorbing area of ​​an animal excrement disposal sheet for absorbing animal excrement, wherein the pet sheet comprises a liquid-permeable surface sheet, a back sheet located on the opposite side of the surface sheet, and an absorbent body arranged between the surface sheet and the back sheet, the back sheet having a back surface facing the opposite side of the side opposite to the surface sheet, and a bonding surface for bonding with the animal excrement disposal sheet being provided on the back surface, and the plurality of pet sheets accommodated in the packaging body are arranged in a manner such that the surface sheets of adjacent pet sheets are in surface contact with each other in a folded state in which the back surfaces of the pet sheets are respectively folded inward.

[0014] Effects of the Invention

[0015] According to the present disclosure, it is possible to provide a pet film and a package containing the pet film, which can effectively reduce the labor time of a user when using the pet film and promote the use of the pet film. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a diagram showing an example of use of the pet sheet according to one embodiment.

[0017] Figure 2 This is a top view of the pet sheet viewed from the front side.

[0018] Figure 3 This is a top view of the pet sheet as viewed from the back side.

[0019] Figure 4 It's a pet movie. Figure 2 Schematic diagram of the cross-sectional structure of line IV-IV.

[0020] Figure 5 It's a pet movie. Figure 2 Schematic diagram of the cross-sectional structure of the VV line.

[0021] Figure 6 It is a top view showing the pet sheet in a folded state.

[0022] Figure 7 This is a schematic diagram obtained by observing the pet sheet from the side as it changes from the folded state to the unfolded state.

[0023] Figure 8 It is a figure which shows the structural example of the connection part provided on the back side of a pet sheet.

[0024] Fig. 9 It is a figure which shows the arrangement example of the joining surface provided on the back side of the pet sheet.

[0025] Fig.10 It is a figure which shows the arrangement example of the joining surface provided on the back side of the pet sheet.

[0026] Fig.11 It is a figure which shows the arrangement example of the joining surface provided on the back side of the pet sheet.

[0027] Fig.12 It is a figure which shows the arrangement example of the joining surface provided on the back side of the pet sheet.

[0028] Fig.13 This is a plan view of the first modified example of the main body as viewed from the surface sheet side.

[0029] Fig.14 Observed from the side Fig.13 Schematic diagram of the pet photo in the four-fold state.

[0030] Fig.15 This is a schematic diagram of a cross-sectional structure of a packaging body according to one embodiment.

[0031] Fig.16 This is a plan view of the second modified example of the main body as viewed from the back sheet side.

[0032] Fig.17 Yes means Fig.16 A top view of a pet film in a folded state. DETAILED DESCRIPTION

[0033] At least the following aspects 1 to 21 are clarified from the description of this specification and the drawings.

[0034] (Method 1)

[0035] A pet sheet is used to overlap with an animal excrement disposal sheet for absorbing animal excrement in a region where the excrement is absorbed, wherein:

[0036] The pet sheet includes a main body having a liquid-permeable top sheet, a back sheet located on the opposite side of the top sheet, and an absorbent body arranged between the top sheet and the back sheet.

[0037] The back sheet has a back surface facing the side opposite to the side facing the top sheet.

[0038] A bonding surface for bonding with the animal excrement disposal sheet is provided on the back surface in a state of being exposed to the outside,

[0039] The main body has a folding line formed therein for folding the main body in half so that the back surface becomes an inner side.

[0040] The joining surface is configured such that, while only the first part of the main body is maintained in a folded state along the bending line so that the first part of the main body is located above the second part of the main body, the second part is naturally separated from the first part to release the folded state, wherein the first part is a part of the main body located on one side relative to the bending line, and the second part is a part of the main body located on the other side relative to the bending line.

[0041] In the first embodiment, when using the folded pet sheet, the folded state can be released by holding the pet sheet with one hand without applying any special force, so that the pet sheet can be attached to the animal excrement disposal sheet. In addition, the bonding surface provided on the back of the pet sheet is exposed to the outside, and no covering sheet (release paper, etc.) is provided to cover the bonding surface, so when using the pet sheet, the labor time of peeling off such a covering sheet is not generated. Therefore, according to the above pet sheet, the labor time of the user when using the pet sheet can be effectively reduced, and the use of the pet sheet can be promoted.

[0042] (Method 2)

[0043] A pet film according to method 1, wherein:

[0044] The bonding surface is arranged so that, in the folded state, at least a portion of the bonding surface arranged in the first portion is opposite to at least a portion of the bonding surface arranged in the second portion.

[0045] The bonding strength between the bonding surfaces is set so that, when only the first part of the pet piece is kept in the folded state in which the first part is located above the second part, the second part is separated from the first part by its own weight to release the folded state.

[0046] According to method 2, by setting the bonding strength between the bonding surfaces to release the folded state by utilizing the self-weight of the second part, it is possible to achieve a structure in which the effect of method 1 described above is achieved while the bonding surfaces can be arranged in a manner that allows them to contact each other in the folded state (i.e., ensuring the freedom of arrangement of the bonding surfaces).

[0047] (Method 3)

[0048] A pet film according to method 1, wherein:

[0049] The bonding surfaces are arranged on the back surface such that the bonding surfaces do not face each other in the folded state.

[0050] According to the third aspect, since it is possible to prevent the bonding surfaces from bonding to each other in the folded state, it is possible to easily realize a structure that achieves the effects of the first aspect described above.

[0051] (Method 4)

[0052] The pet film according to any one of aspects 1 to 3, wherein:

[0053] In the area of ​​the second edge portion of the main body in the folded state along the opposite side of the first edge portion along the bending line, the length of the bonding area along the second edge portion where the bonding surface is provided is shorter than the length of the non-bonding area along the second edge portion where the bonding surface is not provided.

[0054] According to method 4, in the non-bonded area along the second edge portion, a structure can be realized that allows a finger to be easily inserted into the inner side of the main body portion (between the first portion and the second portion) in the folded state, thereby easily releasing the folded state and setting the pet sheet to a state in which the pet sheet can be attached to the animal excrement disposal sheet.

[0055] (Method 5)

[0056] The pet film according to any one of aspects 1 to 4, wherein:

[0057] In the area along the third edge portion of the main body in the folded state, the length of the bonding area along the third edge portion where the bonding surface is provided is shorter than the length of the non-bonding area along the third edge portion where the bonding surface is not provided. In the folded state, the third edge portion is connected to the first edge portion along the bending line and intersects with the first edge portion.

[0058] According to method 5, in the non-bonded area along the third edge portion, a structure can be realized that allows fingers to be easily inserted into the inner side of the main body portion (between the first portion and the second portion) in the folded state, thereby easily releasing the folded state and setting the pet sheet to a state in which the pet sheet can be attached to the animal excrement disposal sheet.

[0059] (Method 6)

[0060] The pet film according to any one of aspects 1 to 5, wherein:

[0061] The joining surface is arranged so as not to overlap with the bending line.

[0062] According to the sixth aspect, even if the main body is folded in half, the bonding surface will not be deformed (will not bend), so the parallel state of the bonding surface can be properly maintained. Thus, the bonding function of the bonding surface with respect to the animal excrement disposal sheet can be prevented from being impaired due to the folded state.

[0063] (Method 7)

[0064] The pet film according to any one of aspects 1 to 6, wherein:

[0065] The combining surface is a hook surface provided with a plurality of hooks.

[0066] According to aspect 7, it is possible to easily realize a structure in which the joining surface is exposed to the outside (ie, a structure in which the joining surface does not need to be covered with a cover sheet such as release paper before use of the pet sheet).

[0067] (Method 8)

[0068] A pet film according to method 7, wherein:

[0069] The height of the hook is 45 μm to 350 μm.

[0070] According to aspect 8, by setting the hook height within the above range, the hook connection strength is suppressed to a certain level or less, thereby suitably achieving a structure that allows the pet sheet and the animal excrement disposal sheet to be connected and the main body to be easily opened from the folded state.

[0071] (Method 9)

[0072] A pet film according to method 7 or method 8, wherein:

[0073] The back surface has a non-binding surface where the binding surface is not provided,

[0074] At least a portion of the non-bonding surface that faces the bonding surface in the half-folded state is formed of a film that does not engage with the hook.

[0075] According to method 9, the situation in which the bonding surface (hook) and the non-bonding surface (film) facing each other in the folded state are bonded (engaged) can be reliably prevented, thereby appropriately realizing a structure that easily allows the main body to be unfolded from the folded state.

[0076] (Method 10)

[0077] The pet film according to any one of aspects 7 to 9, wherein:

[0078] The hook surface is formed by the surface of the hook sheet bonded to the back surface.

[0079] The hook sheet has a sheet edge portion, the sheet edge portion being along an edge portion of the main body portion in the folded state different from the first edge portion along the folding line,

[0080] The edge of the sheet is not bonded to the back surface.

[0081] According to aspect 10, since the back sheet and the sheet edge portion are separated without being bonded together, it is possible to realize a structure in which the main body portion can be easily opened from the folded state.

[0082] (Method 11)

[0083] The pet film according to any one of aspects 1 to 10, wherein:

[0084] The main body portion has two second folding lines formed on both sides of the folding line for further folding the main body portion from the two-folded state into a four-folded state.

[0085] According to aspect 11, the pet sheet can be folded more compactly, so that the storage and storage properties of the pet sheet can be improved.

[0086] (Method 12)

[0087] A pet film according to method 11, wherein:

[0088] The joining surface is arranged so as not to overlap with both the bending line and the two second bending lines.

[0089] According to the twelfth aspect, even if the main body is folded in four, the bonding surface will not be deformed (will not be bent), so the parallel state of the bonding surface can be properly maintained. This can avoid the situation where the bonding function of the bonding surface with respect to the animal excrement disposal sheet is impaired due to the folding in four.

[0090] (Method 13)

[0091] A pet film according to method 11 or method 12, wherein:

[0092] The two second bending lines have a third bending line for bending the main body so that the surface sheet becomes inner in the four-fold state.

[0093] The joining surface is provided at least in a region on the opposite side of the third bending line from the side where the bending line is located.

[0094] In the thirteenth aspect, the bonding surface is arranged at least in the region which tends to bend away from the animal excrement disposal sheet when the pet sheet and the animal excrement disposal sheet are overlapped and used. Thus, the pet sheet can be stored in the four-folded state, and the above-mentioned region of the pet sheet can be prevented from rolling up from the animal excrement disposal sheet when the pet sheet is opened from the four-folded state and used.

[0095] (Method 14)

[0096] The pet film according to any one of aspects 1 to 13, wherein:

[0097] When viewed from the top sheet side, a region along the second edge portion of the main body portion in the two-folded state opposite to the first edge portion along the folding line has a color tone different from that of a region where the absorbent body is arranged.

[0098] According to aspect 14, when the pet sheet in the folded state is viewed from the outside (top sheet side), the position of the opening (the edge portion on the opposite side of the folding line) can be easily visually grasped, thereby improving user convenience.

[0099] (Method 15)

[0100] A pet film according to method 14, wherein

[0101] When viewed from the surface sheet side, the area along the third edge portion, except for the area along the second edge portion, has the same color tone as the area where the absorbent body is arranged, and the third edge portion is connected to the first edge portion and intersects with the first edge portion.

[0102] According to method 15, by setting the color tone of the area along the second edge portion to a different color tone from the area where the absorbent is arranged, the position of the opening can be easily grasped, and by setting the color tone of the area along the third edge portion to the same color tone as the area where the absorbent is arranged, the discomfort felt by the pet who has to excrete on the animal excrement disposal sheet with the pet sheet can be reduced.

[0103] (Method 16)

[0104] A pet film according to method 14 or method 15, wherein:

[0105] The rigidity of a region along the second edge portion in the main body portion is lower than the rigidity of a region in which the absorbent body is arranged in the main body portion.

[0106] According to mode 16, the opening (the area along the second edge portion) formed in a color different from the area where the absorber is arranged can be easily grasped visually, and by making the rigidity of the opening low, it is easy to pinch the opening by hand to open the folded pet sheet.

[0107] (Method 17)

[0108] The pet film according to any one of aspects 1 to 16, wherein:

[0109] The ratio of the cellulose fibers having a hydroxyl group in the absorbent body is 35% or less.

[0110] According to aspect 17, the fold along the fold line generated in the main body due to the folded state can be reduced. Thus, when the pet sheet is arranged on the animal excrement disposal sheet, the discomfort caused to the pet can be reduced.

[0111] (Method 18)

[0112] A pet sheet is used to overlap with an animal excrement disposal sheet for absorbing animal excrement in a region where the excrement is absorbed, wherein:

[0113] The pet sheet includes a main body having a liquid-permeable top sheet, a back sheet located on the opposite side of the top sheet, and an absorbent body arranged between the top sheet and the back sheet.

[0114] The back sheet has a back surface facing the side opposite to the side facing the top sheet.

[0115] A bonding surface for bonding with the animal excrement disposal sheet is provided on the back surface in a state of being exposed to the outside,

[0116] The main body has a folding line formed therein so that the main body can be folded in half with the back side facing inward.

[0117] The coupling surface is configured such that, in a folded state along the bending line, a portion of the coupling surface configured at a first portion of the main body portion located on one side relative to the bending line is opposite to a portion of the coupling surface configured at a second portion of the main body portion located on the other side relative to the bending line.

[0118] An edge portion of the main body portion parallel to the folding line is formed by a flap portion where the absorbent body is not present.

[0119] As in the embodiment 18, by forming the edge of the main body parallel to the fold line (i.e., the edge of the main body located on the opposite side of the fold line when folded in half) with the wing portion having lower rigidity, the folded pet sheet can be easily opened by pinching the edge. In addition, the embodiment 18 can be arbitrarily combined with the structures of the embodiments 1 to 17.

[0120] (Method 19)

[0121] A package containing a plurality of pet sheets, the pet sheets being used to overlap with an area of ​​an animal excrement disposal sheet for absorbing animal excrement, wherein:

[0122] The pet film has:

[0123] Liquid permeable surface sheet;

[0124] a back sheet located on the opposite side of the surface sheet; and

[0125] an absorbent body disposed between the surface sheet and the back surface sheet,

[0126] The back sheet has a back surface facing the side opposite to the side facing the top sheet.

[0127] The back side is provided with a bonding surface for bonding with the animal excrement disposal sheet.

[0128] The plurality of pet sheets accommodated in the package are arranged such that the surface sheets of the adjacent pet sheets are in surface contact with each other in a folded state in which the pet sheets are folded with the back surfaces facing inward.

[0129] If the bonding surface of a pet sheet stored in the package body contacts an adjacent pet sheet, when the pet sheet is pulled out, the bonding surface of the pet sheet (or the cover sheet covering the bonding surface, etc.) rubs against (or clings to) the adjacent pet sheet, which may cause the problem that the pet sheet cannot be properly pulled out. According to mode 19, by arranging and storing a plurality of pet sheets in such a manner that the surface sheets of adjacent pet sheets contact each other, a structure in which the bonding surface of a pet sheet is not easily in contact with the adjacent pet sheet can be achieved, thereby avoiding the above-mentioned problem.

[0130] (Method 20)

[0131] A package according to embodiment 19, wherein

[0132] The bonding surface of the pet sheet is not exposed to the outside in the folded state.

[0133] According to aspect 19, since the bonding surface of one pet sheet housed in the package can be reliably prevented from coming into contact with an adjacent pet sheet, one pet sheet can be appropriately and easily taken out from the package.

[0134] (Method 21)

[0135] A package according to embodiment 20, wherein

[0136] At least a portion of the back surface of the pet sheet is exposed to the outside in the folded state.

[0137] According to the embodiment 21, the effect of the embodiment 20 mentioned above due to the bonding surface not being exposed to the outside and the additional effect described below can be obtained together. That is, after the pet sheet is taken out of the package, the portion of the pet sheet whose back side is exposed to the outside in the folded state functions as a gripping portion, so that the pet sheet can be easily unfolded from the folded state.

[0138] [Implementation Method]

[0139] The embodiments of the present disclosure are described in detail below with reference to the drawings. In the following description, the same reference numerals are used for the same or corresponding elements, and repeated descriptions are omitted.

[0140] Reference Figures 1 to 8 The structure of the pet sheet 1 according to one embodiment will be described. Figure 1 An example of use of the pet sheet 1 will be described. Figure 1 (A) represents the state after the animal excretes excrement U on the animal excrement disposal sheet (hereinafter referred to as "disposal sheet") 100 for absorbing the excrement of the animal (i.e., the state in which the excrement U is partially absorbed by the disposal sheet 100). As an example, the disposal sheet 100 is formed into a rectangular shape when viewed from above, and has a liquid-permeable surface sheet, a liquid-impermeable back sheet, and an absorbent body arranged between the surface sheet and the back sheet. The disposal sheet 100 is used to absorb and retain excrement excreted from animals such as pets and to keep the pet's breeding space in a clean state. The disposal sheet 100 is placed in a predetermined position in the pet's breeding space (e.g., indoors, etc.) in a flat state. The disposal sheet 100 can be placed directly on the floor surface or ground of the breeding space, or it can be placed on the floor surface or ground of the breeding space with the help of a predetermined retainer, tray, paving material, etc.

[0141] The animal to which the disposal sheet 100 is applied is, for example, an animal kept as a pet (hereinafter referred to as a "pet"). The pet to which the disposal sheet 100 is applied may be a mammal such as a dog, a cat, or a hamster, or may be a creature other than a mammal such as a bird, a reptile, or an amphibian.

[0142] The excrement U absorbed by the disposal sheet 100 is not particularly limited as long as it can be absorbed by the absorbent body of the disposal sheet 100. Examples of the excrement U include liquid or low-viscosity feces, urine, saliva, blood, and other body fluids.

[0143] Pets tend to defecate while avoiding the traces of excrement (e.g., urine) on the disposal sheet 100. Therefore, the pet may try to avoid the urine traces and urinate in an abnormal urination posture, resulting in urination outside the disposal sheet 100. In addition, in order to avoid such a problem, even if there is a usable blank area (an area that can absorb new urine) on the disposal sheet 100, it is not appropriate from the viewpoint of environmental protection, and it may also make the user (e.g., the pet owner) feel guilty.

[0144] The pet film 1 is used to eliminate the above-mentioned problems. Figure 1 As shown in (B), the pet sheet 1 is used overlapping with the area (e.g., urine stain) of the disposal sheet 100 that absorbs excrement U. As a result, the urine stain on the disposal sheet 100 can be hidden, and the disposal sheet 100 can be used continuously while avoiding the problem that the pet tries to avoid the urine stain and urinates outside the disposal sheet 100. As a result, a single disposal sheet 100 can be used for a longer period of time than before, thereby achieving improvements in terms of both environmental protection and user's mental health.

[0145] Reference Figure 2 to Figure 5 An example of the structure of the pet sheet 1 will be described. Figure 2 This is a plan view of the pet sheet 1 as viewed from the surface 2a side of the surface sheet 2. Figure 3 This is a plan view of the pet sheet 1 as viewed from the back surface 3 a side of the back surface sheet 3 . Figure 4 It is the pet movie 1 along Figure 2 Schematic diagram of the cross-sectional structure of line IV-IV. Figure 5 It is the pet film 1 along Figure 2 In this specification, for convenience, the thickness direction of the pet sheet 1 is represented as the Z-axis direction, the direction parallel to the bending line L1 of the pet sheet 1 described later is represented as the Y-axis direction, and the direction orthogonal to both the Z-axis direction and the Y-axis direction (i.e., the direction orthogonal to the bending line L1 when viewed from the Z-axis direction) is represented as the X-axis direction.

[0146] like Figure 2 and Figure 3 As shown, the pet sheet 1 has a main body 10 formed in a rectangular shape when viewed from above. However, the shape of the main body 10 when viewed from above is not limited to a rectangular shape, but can be any shape such as a polygon, a circle, an ellipse, etc. The size of the main body 10 can be appropriately set according to the size and type of the pet to which the pet sheet 1 is applied. The main body 10 has a surface sheet 2, a back sheet 3 and an absorbent body 4.

[0147] The surface sheet 2 is composed of a sheet member with liquid permeability. The surface sheet 2 is arranged on the side to which the pet's excrement is supplied when the pet sheet 1 is used (that is, in the scene where the pet sheet 1 is placed on the treatment sheet 100). That is, the surface sheet 2 is arranged on the opposite side of the side opposite to the treatment sheet 100 when the pet sheet 1 is used, and has a surface 2a exposed to the outside (above). The surface sheet 2 is composed of a sheet member with liquid permeability so that the excrement supplied to the surface 2a can move to the back sheet 3 side. As an example, the sheet member constituting the surface sheet 2 is composed of white fibers. As examples of such sheet members, non-woven fabrics such as hot air non-woven fabrics, spunbonded non-woven fabrics, and point-bonded non-woven fabrics can be listed. In addition, the non-woven fabric constituting the surface sheet 2 can also be hydrophilized using a surfactant. In addition, the surface sheet of the treatment sheet 100 can also be composed of a sheet member composed of the same non-woven fabric as the surface sheet 2 of the pet sheet 1.

[0148] Back sheet 3 is a sheet material located on the opposite side of surface sheet 2 in the Z-axis direction. As an example, back sheet 3 is formed into a rectangular shape identical to surface sheet 2 in a manner that completely overlaps with surface sheet 2 when viewed from the Z-axis direction. Back sheet 3 is arranged on a side opposite to processing sheet 100 when using pet sheet 1, and has a back side 3a opposite to processing sheet 100. As an example, back sheet 3 can be composed of liquid-impermeable sheet members. Sheet members constituting back sheet 3 can, for example, include non-breathable resin films such as polyethylene and polypropylene, laminates formed by laminating nonwoven fabrics on the resin films, waterproof or hydrophobic nonwoven fabrics, etc. In the case where back sheet 3 is constituted by a liquid-impermeable sheet member like this, it is possible to prevent excrement discharged on pet sheet 1 from leaking to processing sheet 100 side. However, since processing sheet 100 itself is provided with a liquid-impermeable back sheet for preventing leakage of excrement as described above, even if excrement discharged on pet sheet 1 leaks to processing sheet 100 side, there is no big problem. Therefore, the back sheet 3 may be formed of a liquid-permeable sheet member. In the present embodiment, the back surface 3a is formed of a material that is not bonded to a bonding surface 7a described later.

[0149] Absorber 4 is arranged between surface sheet 2 and back sheet 3. That is, absorber 4 is arranged on the opposite side of the surface 2a side of surface sheet 2, and is arranged on the opposite side of the back 3a side of back sheet 3. As an example, absorber 4 is formed into a rectangular shape that is smaller than main body 10 (surface sheet 2 and back sheet 3) when observed from Z-axis direction, and is arranged in the central part of main body 10 except peripheral part. As an example, absorber 4 is composed of absorbent core, and this absorbent core is formed by the absorbent material for absorbing and keeping excrement. Absorber 4 can be composed of granular absorbent polymer. The absorbent polymer constituting absorber 4 can be any absorbent polymer that can absorb and keep liquid, for example, any highly absorbent polymer such as polyacrylic acid, starch, cellulose can be used. In addition, as an example, absorber 4 has white color in the state before use (that is, the state of not absorbing and keeping excrement). In addition, the structure of absorber 4 is not limited to the above structure. For example, the absorbent body 4 may be constituted by a combination of an absorbent core and a core wrap covering the absorbent core.

[0150] As an example, the absorbent body 4 is disposed between two intermediate sheets 5 and 6 and is sandwiched by the intermediate sheets 5 and 6. The intermediate sheet 5 is disposed between the top sheet 2 and the absorbent body 4. The intermediate sheet 6 is disposed between the back sheet 3 and the absorbent body 4. In the present embodiment, the intermediate sheets 5 and 6 function as a core wrap layer for preventing the absorbent body 4 from being deformed.

[0151] As an example, the intermediate sheets 5 and 6 are formed into rectangular shapes of the same size when viewed from the Z-axis direction. The width of the intermediate sheets 5 and 6 in the Y-axis direction is the same as the width of the main body 10 (the surface sheet 2 and the back sheet 3) in the Y-axis direction. On the other hand, the width of the intermediate sheets 5 and 6 in the X-axis direction is shorter than the width of the main body 10 (the surface sheet 2 and the back sheet 3) in the X-axis direction. The intermediate sheets 5 and 6 are arranged in the central part of the main body 10 excluding the peripheral part in the X-axis direction. Thus, as Figure 2 , Figure 3 and Figure 4 As shown, the main body 10 is divided into an area A1 (first area) in the center of the main body 10 in the X-axis direction where the intermediate sheets 5 and 6 are arranged, and areas A2 (second area) at both ends of the main body 10 in the X-axis direction where the intermediate sheets 5 and 6 are not arranged.

[0152] As an example, the middle piece 5 is made of tissue paper colored in a color other than white (e.g., blue). On the other hand, the middle piece 6 is made of white tissue paper. In addition, the surface piece 2, the back piece 3, and the middle piece 6 have a visible light transmittance of more than a predetermined degree. Therefore, when the pet piece 1 is observed from the surface 2a side, the blue of the middle piece 5 is visually recognized for the region A1, and the white of the surface piece 2 is visually recognized for the region A2. On the other hand, when the pet piece 1 is observed from the back 3a side, the white of the absorber 4 is visually recognized for the region in the region A1 where the absorber 4 is configured, the blue of the middle piece 5 is visually recognized for the region in the region A1 where the absorber 4 is not configured, and the white of the surface piece 2 is visually recognized for the region A2. In this way, the color tone of the pet piece 1 is different when it is observed from the surface 2a side and when it is observed from the back 3a side. Thus, the user of the pet piece 1 can easily grasp the surface and back of the pet piece 1 according to the color tone of the pet piece 1.

[0153] like Figure 3 to Figure 5 As shown, a binding portion 7 is provided at the back side 3a of the back sheet 3, and the binding portion 7 has a binding surface 7a for combining with the processing sheet 100. The binding portion 7 is provided in a state where the binding surface 7a is exposed to the outside. That is, components such as a cover sheet that covers the binding surface 7a under a state such as before the use of the pet sheet 1 is not provided. As an example, four rectangular binding portions 7 are provided at the corners (four corners) of the back side 3a. In the present embodiment, each binding portion 7 is configured in a manner that the outer edge of each binding portion 7 is separated from the outer edge of the back side 3a. However, each binding portion 7 can also be configured in a manner that the outer edge of each binding portion 7 is consistent with the outer edge of the back side 3a.

[0154] The main body 10 is provided with a folding line L1 for folding the main body 10 in half so that the back surface 3a is on the inner side. For example, the folding line L1 passes through the center position of the main body 10 in the X-axis direction and extends in a direction (Y-axis direction) perpendicular to the X-axis direction. The folding line L1 can be formed, for example, by a fold line previously given to the main body 10. Figure 1 and Figure 2 As shown, the main body 10 is divided into two parts located on one side (as an example) with respect to the bending line L1. Figure 1 The first portion 11 (on the left side in FIG. 1 ) and the other side (as an example, Figure 1 In addition, since the first part 11 and the second part 12 are in a symmetrical relationship, the first part 11 and the second part 12 may be reversed. That is, the first part 11 may be regarded as the "second part" and the second part 12 may be regarded as the "first part".

[0155] Figure 6 The main body 10 is shown in a folded state along the folding line L1 with the back surface 3a facing the inside. More specifically, Figure 6 This is a top view of the main body 10 in the folded state as viewed from the side of the first portion 11 opposite to the surface 2a. Figure 6 As shown, the pet sheet 1 is configured so as to be compactly stored by being folded in half before use or the like.

[0156] Figure 7 1 is a schematic diagram of the pet sheet 1 viewed from the side (along the direction of the bending line L1 (Y-axis direction)) from the folded state to the unfolded state. The bonding surface 7a provided on the pet sheet 1 (in this embodiment, the bonding surface 7a of each of the four bonding portions 7) is configured such that Figure 7 In the case where only the first part 11 of the main body 10 is folded in half so that the first part 11 is located above the second part 12 as shown in (A), Figure 7 As shown in (B), the second part 12 is naturally separated from the first part 11 and the folded state is released. Hereinafter, the function of naturally releasing the folded state and unfolding is referred to as "unfolding function". Since the pet sheet 1 has the above-mentioned unfolding function, the pet sheet 1 can be easily changed from the folded state to the unfolded state (opened state), thereby improving the convenience of the user who uses the pet sheet 1.

[0157] In the present embodiment, the four coupling parts 7 are arranged in an axisymmetric manner with respect to the bending line L1. Specifically, in the folded state, the two coupling parts 7 provided in the first part 11 are arranged in a manner opposite to (overlapping) the two coupling parts 7 provided in the second part 12. Therefore, in the case of being set to the folded state, there is a possibility that the coupling surface 7a provided in the first part 11 and the coupling surface 7a provided in the second part 12 contact and couple with each other. Here, if the coupling surface 7a of the first part 11 and the coupling surface 7a of the second part 12 are firmly coupled, the above-mentioned unfolding function cannot be exerted, and it will be necessary to pull the coupling surfaces 7a apart from each other with a strong force in order to make the pet sheet 1 from the folded state to the unfolded state, thereby wasting the labor time of the user. Therefore, in the present embodiment, in order to exert the above-mentioned unfolding function, the bonding strength of the bonding surfaces 7a facing each other in the folded state is set such that, while only the first part 11 of the main body 10 is kept in the folded state so that the first part 11 is located above the second part 12, the second part 12 is separated from the first part 11 by the self-weight of the second part 12 to release the folded state. Hereinafter, the function of releasing the folded state by the self-weight of the second part 12 as described above and unfolding is referred to as "self-weight unfolding function".

[0158] Figure 8 (A) is a schematic diagram showing a structural example of the connecting portion 7 provided on the back surface 3 a of the pet sheet 1 . Figure 8 (B) is a partial enlarged view of the joint 7. Figure 8 As shown, as an example, the coupling portion 7 has a plurality of hooks 71 and a flat hook sheet 72 that supports and fixes the plurality of hooks 71. The hook sheet 72 is fixed to the back surface 3a by means of the adhesive layer 8, so that the coupling portion 7 is fixed to the back surface 3a. The coupling surface 7a of the coupling portion 7 is composed of the surface (hook surface) of the hook sheet 72 on which the plurality of hooks 71 are provided. In this case, the setting of the coupling strength between the coupling surfaces 7a for exerting the above-mentioned self-weight unfolding function can be achieved by adjusting the shape, height and density (the number of hooks in a unit area, the distance between hooks, etc.) of the plurality of hooks 71 and the contact area between the coupling surfaces 7a that are opposite to each other (contacting) in the folded state.

[0159] like Figure 8 As shown in (B), as an example, each hook 71 can be composed of a columnar portion 71a and an umbrella portion 71b. The columnar portion 71a is a columnar portion erected from the hook piece 72. The umbrella portion 71b is a portion provided at the top of the columnar portion 71a and having a hook diameter d1 larger than the diameter of the columnar portion 71a. Figure 1When the pet sheet 1 is placed on the treatment sheet 100 as shown in (B), the umbrella portion 71b of each hook 71 enters the space between the nonwoven fabrics constituting the surface sheet of the treatment sheet 100 and engages with the surface sheet. Thus, the pet sheet 1 is combined (engaged) with the treatment sheet 100 by the combination portion 7.

[0160] As an example, the height h of the hook 71 is 45 μm to 350 μm. By setting the height h of the hook 71 within the above range, the bonding strength of the hook 71 is suppressed to a certain extent, so that a structure that allows the pet sheet 1 to be combined with the treatment sheet 100 and the main body 10 to be easily opened from the folded state can be appropriately realized. In addition, the height h of the hook 71 can also be set to 45 μm to 150 μm. In this case, by suppressing the height h of the hook 71 to be lower, the bulge of the pet sheet 1 at the bonding portion 7 when the pet sheet 1 is combined with the treatment sheet 100 can be suppressed, and the discomfort caused to the pet can be reduced. In addition, the distance d2 between adjacent hooks 71 is set, for example, in the range of 70 μm to 410 μm. More preferably, the distance d2 between adjacent hooks 71 is set in the range of 120 μm to 300 μm. In this way, in order to exert the above-mentioned self-weight expansion function, other parameters (such as the distance between hooks) can also be adjusted together with the height h of the hook 71.

[0161] [Effects of this embodiment]

[0162] In the pet sheet 1, the bonding surface 7a for bonding with the treatment sheet 100 is provided on the back side 3a in a state exposed to the outside. In addition, a bending line L1 for folding the main body 10 in such a manner that the back side 3a becomes the inner side is formed in the main body 10. In addition, the pet sheet 1 has the above-mentioned unfolding function. In this way, the bonding surface 7a provided on the back side 3a of the pet sheet 1 is exposed to the outside, and a covering sheet (release paper, etc.) covering the bonding surface 7a is not provided, so that the labor time of peeling off such a covering sheet does not occur when using the pet sheet 1. In addition, in this case, as described in the present embodiment, it is possible that the bonding surfaces 7a are opposite (contacted) to each other and bonded to each other in the folded state, but by configuring the bonding surface 7a to have the above-mentioned unfolding function, when the user uses the pet sheet 1 in the folded state, there is no need to apply a special force, and the folded state can be released by simply holding the pet sheet 1 with one hand, thereby setting the state in which the pet sheet 1 can be attached to the treatment sheet 100. Therefore, according to the pet film 1 , the labor time of the user when using the pet film 1 can be effectively reduced, and the use of the pet film 1 can be promoted.

[0163] In addition, in the pet sheet 1, the bonding surface 7a is configured so that, in the folded state, at least a portion of the bonding surface 7a configured in the first portion 11 and at least a portion of the bonding surface 7a configured in the second portion 12 are opposite. In addition, in the present embodiment, as an example, each bonding surface 7a is configured so that all the bonding surfaces 7a (two bonding surfaces 7a) configured in the first portion 11 and all the bonding surfaces 7a (two bonding surfaces 7a) configured in the second portion 12 are completely overlapped by the bonding surfaces 7a being arranged axially symmetrically with respect to the bending line L1. On the basis of the configuration of each bonding surface 7a in this way, the pet sheet 1 has the above-mentioned self-weight unfolding function. That is, the bonding strength of each bonding surface 7a is adjusted to exert the self-weight unfolding function. By setting the bonding strength between the bonding surfaces 7a to be such that the folded state is released by the own weight of the second portion 12, it is possible to achieve a structure in which the bonding surfaces 7a can be arranged in such a way that they are in contact with each other in the folded state (i.e., the freedom of arrangement of the bonding surfaces 7a is ensured) while achieving the above-mentioned effect (i.e., the effect of reducing the labor time of the user when using the pet film 1).

[0164] Furthermore, whether the pet sheet 1 has the above-described self-weight expansion function can be confirmed by a self-weight expansion test as described below.

[0165] <An example of self-weight expansion test>

[0166] 1. Figure 7 The pet sheet 1 in a folded state with the main body 10 folded in half as shown in (A) is placed on a horizontal surface (eg, a horizontal floor surface).

[0167] 2. The second portion 12 is not held by a predetermined tool or human hands, but only the first portion 11 is held, and the pet sheet 1 is pulled upward while maintaining the first portion 11 substantially parallel to the horizontal plane.

[0168] 3. After performing the operation in step 2 above, Figure 7 When the second portion 12 is separated downward from the first portion 11 as shown in (B), it is determined that the above-mentioned self-weight expansion function is possessed.

[0169] In the operation of "2.", there is no particular limitation on the method of holding only the first part 11 while making the first part 11 substantially parallel to the horizontal plane. For example, the first part 11 may be held by adsorbing the surface 2a of the first part 11 with a predetermined tool, or by pinching the edge of the first part 11 (for example, the edge 10c on both sides opposite to each other in the Y-axis direction) with human fingers.

[0170] In addition, if Figure 6 As shown, in the region along the edge portion 10b (second edge portion) opposite to the edge portion 10a (first edge portion) along the bending line L1 of the main body portion 10 in the folded state, the length of the bonding area A3 along the edge portion 10b provided with the bonding surface 7a (bonding portion 7) is shorter than the length of the non-bonding area A4 along the edge portion 10b without the bonding surface 7a. Figure 2 and Figure 3 ) on both sides of the X-axis direction (i.e., the edges that overlap each other in the folded state) form the edge portion 10b. In addition, in the present embodiment, since the bonding portion 7 is provided at the four corners of the back side 3a, the bonding area A3 is formed near the two side ends in the Y-axis direction, and a non-bonding area A4 is formed between the two bonding areas A3. That is, in the present embodiment, the total length of the two bonding areas A3 in the Y-axis direction is shorter than the length of one non-bonding area A4 in the Y-axis direction. According to the above structure, the length of the non-bonding area A4 in the Y-axis direction can be fully ensured, so that in the non-bonding area A4 in the area along the edge portion 10b, a structure that allows easy insertion of fingers into the inner side (between the first part 11 and the second part 12) of the main body 10 in the folded state can be realized. As a result, it is easy to release the folded state and set it to a state where the pet sheet 1 can be attached to the treatment sheet 100.

[0171] In addition, if Figure 6 As shown, in the area along the edge portion 10c (third edge portion) of the main body portion 10 in the folded state, the length of the bonding area A5 along the edge portion 10c provided with the bonding surface 7a (bonding portion 7) is shorter than the length of the non-bonding area A6 along the edge portion 10c without the bonding surface 7a. In the folded state, the edge portion 10c (third edge portion) is connected to the edge portion 10a along the bending line L1 and intersects with the edge portion 10a. In this embodiment, in the unfolded state (refer to Figure 2 and Figure 3) form edge portions 10c on both sides of the Y-axis direction under the back surface 3a. In addition, in the present embodiment, since the bonding portion 7 is provided at the four corners of the back surface 3a, the bonding area A5 is formed near the edge portion 10b in the X-axis direction, and a non-bonding area A6 is formed at a position closer to the edge portion 10a than the bonding area A5. That is, in the present embodiment, the length of a bonding area A5 in the X-axis direction is shorter than the length of a non-bonding area A6 in the X-axis direction. According to the above structure, the length of the non-bonding area A6 in the X-axis direction can be fully ensured, so that in the non-bonding area A6 in the area along the edge portion 10c, a structure that allows fingers to be easily inserted into the inner side (between the first part 11 and the second part 12) of the main body 10 in the folded state can be realized. As a result, it is easy to release the folded state and set it to a state where the pet sheet 1 can be attached to the handling sheet 100.

[0172] In addition, if Figure 3 As shown, the bonding surface 7a is configured in a manner that does not overlap with the bending line L1. According to the above structure, even if the main body 10 is set to a folded state, the bonding surface 7a will not be deformed (will not bend), so the parallel state of the bonding surface 7a can be properly maintained. Thereby, it is possible to avoid a situation in which the bonding function of the bonding surface 7a relative to the processing sheet 100 is impaired due to being set to a folded state. In addition, assuming that the bonding surface 7a overlaps with the bending line L1, it is difficult to fold the main body 10 along the bending line L1 when the bonding surface 7a (bonding portion 7) is composed of a component with relatively high rigidity. According to the above structure, such a problem can also be avoided.

[0173] In addition, if Figure 8 As shown, the bonding surface 7a is composed of a hook surface (surface of the hook sheet 72) provided with a plurality of hooks 71. That is, the bonding surface 7a is not composed of an adhesive surface such as HMA. According to the above structure, it is easy to realize a structure in which the bonding surface 7a is exposed to the outside (that is, a structure in which the bonding surface 7a does not need to be covered with a cover sheet such as release paper before the pet sheet 1 is used).

[0174] In addition, if Figure 6As shown, when observed from the side of the surface sheet 2, the area along the edge 10b of the main body 10 in the folded state (in this embodiment, the area A2 where the absorber 4 is not configured) has a different color tone from the area where the absorber 4 is configured. In this embodiment, as described above, when observed from the side of the surface 2a, the area A2 along the edge 10b is visually recognized as white (the color of the surface sheet 2). On the other hand, the area A1 including the area where the absorber 4 is configured is visually recognized as blue (the color of the middle sheet 5). According to the above structure, when the pet sheet 1 in the folded state is observed from the outside (the surface sheet 2 side), the position of the opening (the edge 10b on the opposite side of the bending line L1) can be easily grasped visually, so the convenience of the user can be improved.

[0175] In addition, when the surface sheet 2 is observed, the area along the edge 10c (i.e., the area along the edge 10b of the main body 10 along the Y-axis direction) except the area A2 (i.e., the area along the edge 10c of the area A1) has the same color tone as the area where the absorber 4 is arranged. In the present embodiment, as described above, when the pet sheet 1 is observed from the surface 2a side, the entire area A1 is visually recognized as blue (the color of the intermediate sheet 5) regardless of whether the absorber 4 is arranged. According to the above structure, by setting the color tone of the area A2 along the edge 10b to be different from the color tone of the area (part of the area A1) where the absorber 4 is arranged, the position of the opening can be easily grasped, and by setting the color tone of the area along the edge 10c except the area A2 (i.e., the area outside the area where the absorber 4 is arranged in the area A1) to be the same as the color tone of the area where the absorber 4 is arranged, the discomfort of the pet who wants to defecate on the disposal sheet 100 to the pet sheet 1 can be reduced. That is, by minimizing the provision of a boundary portion where the color tone changes, the generation of discomfort caused by the color change can be suppressed. In addition, when the color tone of the surface sheet of the treatment sheet 100 (the color tone when viewed from the surface sheet side) is set to the same color tone as the area where the absorber 4 is arranged in the pet sheet 1 (blue in this embodiment), the boundary between the pet sheet 1 and the treatment sheet 100 can be made less conspicuous in the vicinity of the edge portion 10c of the pet sheet 1. As a result, the discomfort caused to the pet sheet 1 as described above can be reduced.

[0176] In addition, the rigidity of the area along the edge portion 10b in the main body 10 (in the present embodiment, the area A2 where the absorber 4 is not arranged) is lower than the rigidity of the area (part of the area A1) in the main body 10 where the absorber 4 is arranged. That is, the area where the absorber 4 is arranged has a higher rigidity than the area A2 because the thickness is at least greater than the thickness of the area A2 by the amount of the absorber 4. In other words, the area A2 is thinner and softer than the central part of the main body 10 (the area where the absorber 4 is arranged), and therefore is easy to roll up when opened from the folded state. Therefore, according to the above-mentioned structure, the opening (the area along the second edge portion) formed with a different color from the area where the absorber 4 is arranged can be easily grasped visually, and by making the rigidity of the opening lower, it is easy to pinch the opening with the hand to open the pet sheet 1 in the folded state.

[0177] In addition, the proportion of cellulose fibers having hydroxyl groups in the absorbent body 4 may be 35% or less. According to the above structure, the fold along the fold line L1 generated in the main body 10 due to the folded state can be reduced. That is, the degree of the fold along the fold line L1 can be suppressed to a degree that can identify the part that is bent when the pet sheet 1 is folded in half, and the pet sheet 1 can be unfolded to be as inconspicuous as possible and flat. Therefore, when the pet sheet 1 is arranged on the handling sheet 100, the discomfort caused to the pet can be reduced.

[0178] In addition, if Figure 4 As shown, the edge portion 10b of the main body 10 parallel to the fold line L1 is formed by the wing portion F where the absorber 4 is not present. That is, the rigidity of the peripheral portion of the main body 10 is lower than the rigidity of the region where the absorber 4 is disposed. According to the above structure, by forming the edge portion of the main body 10 parallel to the fold line L1 (that is, the edge portion 10b of the main body 10 located on the opposite side of the fold line L1 in the folded state) by the wing portion F having lower rigidity, it is easy to pinch the edge portion 10b by hand, and the pet sheet 1 in the folded state can be easily opened. As a result, the labor time of the user when using the pet sheet 1 can be effectively reduced, and the use of the pet sheet 1 can be promoted.

[0179] [Modifications]

[0180] The embodiments of the present disclosure are described above, but the present disclosure is not limited to the above embodiments. The materials and shapes of each structure are not limited to the above materials and shapes, but can adopt various materials and shapes. In addition, some structures included in the structure of the above embodiments can also be changed or omitted, and other structures can be added.

[0181] For example, in the above embodiment, the hook surface is illustrated as an example of the bonding surface 7a, but the bonding surface 7a may be composed of a surface other than the hook surface. For example, the bonding surface 7a may be an adhesive surface or a glue surface (for example, a surface coated with the same glue as the back of the stamp).

[0182] In the above embodiment, the pet sheet 1 does not necessarily have the self-weight unfolding function. In this case, the pet sheet 1 folded in half can be opened relatively easily by forming the wing portion F as described above, thereby reducing the labor time of the user.

[0183] (Modification of the configuration of the joint surface)

[0184] The shape and arrangement of the connecting surface 7a (connecting portion 7) are not limited to the above-described embodiment. For example, as a modified example of the structure in which the connecting surface 7a is arranged axially symmetrically with respect to the bending line L1 as in the above-described embodiment, there can be cited: Fig. 9 and Fig.10 The structure shown. Fig. 9 In the example of (A), two bonding surfaces 7a extending in a strip shape in the Y-axis direction are arranged along both side edges (edges 10b) in the X-axis direction. Fig. 9 In the example (B), four connecting surfaces 7a formed in shapes other than a rectangular shape (circular shape as an example) are arranged at the four corners of the back surface 3a. In addition, if the connecting surface 7a has a degree of flexibility that allows it to be bent along the bending line L1, it can also be arranged in a manner overlapping the bending line L1. Fig.10 In the example of (A), two bonding surfaces 7a extending in a strip shape in the X-axis direction are arranged along both side edges (edges 10c) in the Y-axis direction. Fig.10 In the example of (B), one connecting surface 7a (in this example, a rectangular connecting surface 7a) is arranged in the center of the back surface 3a.

[0185] In addition, the bonding surface 7a may be arranged on the back surface 3a in such a manner that the bonding surfaces 7a do not face each other in the folded state. Fig.11 and Fig.12 The bonding surface 7a is configured as shown. Fig.11 In the example of (A), one bonding surface 7a is arranged at the center of the portion along the edge 10b of the first portion 11 in the Y-axis direction. In addition, two bonding surfaces 7a are arranged at the portions along the edge portions (edge ​​portions 10c) on both sides of the portion along the edge 10b of the second portion 12 in the Y-axis direction. Fig.11 Example (B) with Fig.11The difference of the example (A) is that two bonding surfaces 7a are arranged in the Y-axis direction at the center of the portion along the edge portion 10b of the first portion 11. Fig.12 In the example of (A), a bonding surface 7a extending in the Y-axis direction is arranged in a region on one side (the lower side in the figure) in the Y-axis direction of the portion along the edge portion 10b of the first portion 11, and a bonding surface 7a extending in the Y-axis direction is arranged in a region on the other side (the upper side in the figure) in the Y-axis direction of the portion along the edge portion 10b of the second portion 12. Fig.12 In the example of (B), a bonding surface 7a extending in the X-axis direction is arranged along the edge portion 10c on one side (the lower side as shown in the figure) of the first part 11, and a bonding surface 7a extending in the X-axis direction is arranged along the edge portion 10c on the other side (the upper side as shown in the figure) of the second part 12.

[0186] according to Fig.11 and Fig.12 The illustrated structure in which the bonding surfaces 7a are not opposite to (not in contact with) each other in the folded state can prevent the bonding surfaces 7a from bonding to each other in the folded state. Therefore, for example, by making the back side 3a composed of a raw material that is not easily bonded to the bonding surface 7a, the above-mentioned unfolding function can be appropriately exerted.

[0187] In addition, in Fig.11 and Fig.12 In the example of the back side 3a, in which the back side 3a is composed of the bonding surface 7a and the non-bonding surface (the surface of the back side 3a other than the bonding surface 7a) on which the bonding surface 7a is not provided, and in the folded state, at least a part of the non-bonding surface is opposite to the bonding surface 7a, at least a part of the non-bonding surface that is opposite to the bonding surface 7a in the folded state (for example, Fig.12 The portion B) indicated by the dotted line in (A) may also be formed by a film that does not engage with the hook 71. According to the above structure, since the bonding surface 7a (hook 71) and the non-bonding surface (portion B formed by the film) facing each other in the folded state can be reliably prevented from bonding (engaging), it is possible to appropriately realize a structure that makes it easy to change the main body 10 from the folded state to the unfolded state. That is, the above-mentioned unfolding function can be reliably exerted.

[0188] Furthermore, from the viewpoint of reliably preventing the bonding surface 7a from bonding with the non-bonding surface, it is preferred that not only the portion B of the non-bonding surface that faces the bonding surface 7a in the folded state is formed of a film that does not engage with the hook 71, but the entire non-bonding surface is formed of a film that does not engage with the hook 71. For example, the entire back surface 3a may be formed as a film surface that does not engage with the hook 71.

[0189] In addition, in the above-mentioned embodiment ( Figures 1 to 8 ) and some variants ( Figures 9 to 12 ) illustrates a method in which the bonding surfaces 7a completely overlap in the folded state ( Figures 1 to 10 ) and in the folded state, the bonding surfaces 7a do not overlap each other at all ( Fig.11 and Fig.12 ), but it is also possible to adopt a method in which the bonding surfaces 7a partially overlap each other in the folded state. That is, it is also possible to adopt a method in which, in the folded state, a part of one bonding surface 7a overlaps with another bonding surface 7a, and the other part of the one bonding surface 7a overlaps with the non-bonding surface (the part of the back surface 3a where the bonding surface 7a is not provided). In this way, according to the structure in which the bonding surfaces 7a facing each other in the folded state partially overlap each other, compared with the structure in which the bonding surfaces 7a facing each other in the folded state completely overlap each other, the bonding strength between the bonding surfaces 7a can be weakened, so it is easy to exert the above-mentioned self-weight expansion function.

[0190] Alternatively, it can be, Figure 6 As shown, the hook sheet 72 (joining portion 7) has a sheet edge portion E (in the case of the hook sheet 72) along an edge portion (i.e., edge portion 10b or edge portion 10c) different from the edge portion 10a along the bending line L1 of the main body portion 10 in the folded state. Figure 6 In the example, the edge portion along the edge portion 10b is not bonded to the back surface 3a. That is, the adhesive layer 8 may be deliberately not provided between the edge portion E of the sheet and the back surface 3a (see Figure 8 (A)). According to the above structure, since the back sheet 3 and the edge E of the sheet are not bonded and separated, it is possible to realize a structure that can easily open the main body from the folded state. More specifically, while pinching the edge of the main body 10 along the edge E of the sheet (at Figure 6 In the example of the edge portion 10b) (for example, the wing portion F (refer to Figure 4 When the pet sheet 1 is opened, the wing portion F can be easily rolled up by the edge portion E of the sheet, so the pet sheet 1 folded in half can be easily opened.

[0191] In addition, the main body 10 may be configured to be further folded in half from the folded state to be in a four-folded state. Fig.13 and Fig.14 The main body 10A as an example of the above-mentioned structure will be described. Fig.13 This is a plan view of the main body 10A in the developed state as viewed from the surface 2a side. Fig.14 This is a schematic diagram showing the main body 10A in the four-folded state as viewed from the side.

[0192] like Fig.13 and Fig.14As shown in FIG. 1 , in the main body 10A, a bending line L2 (second bending line, third bending line) is formed between the edge 10b of the first portion 11 and the bending line L1. In addition, a bending line L3 (second bending line) is formed between the edge 10b of the second portion 12 and the bending line L1. That is, in the main body 10A, two bending lines L2 and L3 for further folding in half from the folded state to the four-folded state are formed on both sides of the bending line L1.

[0193] In the main body 10A, the first portion 11 is further divided into two parts by the bending line L2 (two parts overlapping each other in the four-fold state). Specifically, the first portion 11 is divided into a portion 111 between the edge 10b of the first portion 11 and the bending line L2, and a portion 112 between the bending line L2 and the bending line L1. Similarly, the second portion 12 is further divided into two parts by the bending line L3 (two parts overlapping each other in the four-fold state). Specifically, the second portion 12 is divided into a portion 121 between the bending line L1 and the bending line L3, and a portion 122 between the bending line L3 and the edge 10b of the second portion 12.

[0194] In this example, if Fig.14 As shown in FIG. 1 , when the main body 10A is viewed from the surface 2a side, the bending lines L1 and L3 correspond to the creases of the mountain fold, and the bending line L2 corresponds to the crease of the valley fold. That is, when the main body 10A is viewed from the surface 2a side, the main body 10A is first folded in the mountain shape along the bending line L1 to be in the folded state (see FIG. 1 ). Figure 6 and Figure 7 (A)). In the folded state, the two bending lines L2 and L3 are arranged in an overlapping manner. The main body 10A is further folded along the bending lines L2 and L3 from the folded state to become Fig.14 According to the structure in which the two folding lines L2 and L3 for further folding the folded state into the four-folded state are formed on both sides of the folding line L1 as described above, the pet sheet 1 can be folded more compactly, thereby improving the storage and storage properties of the pet sheet 1.

[0195] In addition, in the above-mentioned structure, the foldable state can be set to the four-fold state (refer to Fig.14 ) in the main body 10A, the joint surface 7a is configured so as not to overlap with any of the bending lines L1, L2, and L3. Fig.13 and Fig.14In the example of FIG. 1 , each bonding surface 7a is arranged outside the bending lines L2 and L3 (i.e., the portion 111 and the portion 122). According to the above structure, even if the main body 10A is set to the four-fold state, the bonding surface 7a will not be deformed (will not be bent), so the parallel state of the bonding surface 7a can be appropriately maintained. As a result, it is possible to avoid the situation where the bonding function of the bonding surface 7a with respect to the processing sheet 100 is impaired due to the four-fold state.

[0196] In addition, one of the two bending lines L2 and L3 is a third bending line (i.e., a line corresponding to the crease of the valley fold when viewed from the surface 2a side) for bending the main body 10A in such a way that the surface sheet 2 becomes the inner side in the four-folded state. In addition, the bonding surface 7a is at least provided in an area (i.e., part 111) on the opposite side of the side where the bending line L1 is located relative to the third bending line (bending line L2). In the above structure, the bonding surface 7a is provided in an area (i.e., part 111) with a tendency to bend away from the processing sheet 100 when the pet sheet 1 is used overlapping with the processing sheet 100 on the back side 3a. Thus, the pet sheet 1 can be stored in the four-folded state, and the situation that the part 111 of the pet sheet 1 is rolled up from the processing sheet 100 when the pet sheet 1 is opened from the four-folded state and used can be prevented.

[0197] (Packaging)

[0198] Fig.15 1 is a schematic diagram showing an example of a package 50 containing a plurality of (ten, for example) pet sheets 1. The package 50 is formed, for example, in a bag shape having a substantially rectangular parallelepiped shape when containing a plurality of pet sheets 1. The package 50 is made of, for example, a synthetic resin such as polyethylene, polypropylene, or polyethylene terephthalate. For example, a rupture line (not shown) is formed at a predetermined position of the package 50, and the package 50 is ruptured along the rupture line, thereby forming an opening for taking out the pet sheets 1 contained in the package 50.

[0199] The package 50 stores a plurality of pet sheets 1 in the following manner. That is, the plurality of pet sheets 1 stored in the package 50 are in a folded state (in which the back surface 3a is folded inward) with the back surface 3a being the inner side. Fig.15 In the example, the folded state ( Figure 6 ) In the same state), the surface sheets 2 (surfaces 2a) of the adjacent pet sheets 1 are arranged in a manner of surface contact with each other. Fig.15 Although the surface sheets 2 (surfaces 2a) of the adjacent pet sheets 1 are separated from each other and a small gap is formed between the adjacent pet sheets 1, the surface sheets 2 (surfaces 2a) of the adjacent pet sheets 1 are actually in contact with each other (surface contact).

[0200] If the bonding surface 7a of one pet sheet 1 stored in the package 50 contacts the adjacent pet sheet 1, when the pet sheet 1 is pulled out, the bonding surface 7a of the pet sheet 1 rubs against (or clings to) the adjacent pet sheet 1, which may cause a problem that the pet sheet 1 cannot be properly pulled out. In contrast, according to the package 50, by arranging and storing a plurality of pet sheets 1 in such a manner that the surface sheets 2 (surfaces 2a) of the adjacent pet sheets 1 are in surface contact with each other, a structure in which the bonding surface 7a of one pet sheet 1 is not easy to contact the adjacent pet sheet 1 can be achieved, thereby avoiding the above-mentioned problem. As a result, the convenience of the user who wants to take out the pet sheet 1 from the package 50 for use can be improved.

[0201] In addition, Fig.15 In the example of FIG. 5 , the pet sheet 1 is bent along the bending line L1 in such a way that the back surface 3a completely overlaps, so the joint surface 7a of the pet sheet 1 is not exposed to the outside in the folded state (i.e., the state stored in the packaging body 50). According to the above structure, since the joint surface 7a of one pet sheet 1 stored in the packaging body 50 can be reliably prevented from contacting with the adjacent pet sheet 1, one pet sheet 1 can be properly and easily extracted from the packaging body 50.

[0202] In addition, the bonding surface 7a of the pet sheet 1 stored in the packaging body 50 as described above can also be an adhesive surface. In addition, a covering sheet such as a release paper covering the bonding surface 7a can also be provided on the bonding surface 7a. In such a case, the effect of reducing the labor time of the user can also be achieved as described below. That is, a plurality of pet sheets 1 are stored in the packaging body 50 in a state where each pet sheet 1 is folded in such a manner that the back surface 3a is hidden inside (that is, the bonding surface 7a and the covering sheet covering the bonding surface 7a are not exposed to the outside). Thus, when one pet sheet 1 is pulled out, the problem of the other pet sheet 1 being damaged or the covering sheet accidentally peeling off due to friction between the covering sheet and another adjacent pet sheet 1 can be avoided. As a result, the convenience of the user who wants to take out the pet sheet 1 from the packaging body 50 for use can be improved.

[0203] In addition, the pet sheet 1 (main body) may be configured so that at least a portion of the back surface 3a is exposed to the outside in the folded state. Fig.16 and Fig.17 The main body 10B as an example of the above-mentioned structure will be described. Fig.16 This is a plan view of the main body 10B in the unfolded state as viewed from the back surface 3 a side. Fig.17 It is from Fig.16 A top view of the main body 10B in a folded state (folded in half) is obtained by observing the main body 10B in the same direction. Fig.16As shown in FIG. 1 , the main body 10B is different from the main body 10 mainly in that it has a bending line L1 that is inclined relative to the edge 10b. That is, the main body 10B does not have a shape that is axially symmetrical with respect to the bending line L1, but is configured so that the first portion 11 and the second portion 12 do not completely overlap when the main body 10B is folded in half along the bending line L1. Fig.17 As shown, the back side 3a of the main body 10B is partially exposed to the outside. By configuring the main body 10B of the plurality of pet sheets 1 stored in the packaging body 50 so that at least a part of the back side 3a is exposed to the outside in the folded state as described above, the above-mentioned effect brought about by the bonding surface 7a not being exposed to the outside and the additional effect described below can be obtained at the same time. That is, after the pet sheet 1 is taken out of the packaging body 50, the part of the pet sheet 1 in the folded state where the back side 3a is exposed to the outside functions as a pinching part, so that the pet sheet 1 can be easily unfolded from the folded state. In addition, when the pet sheet 1 is taken out of the packaging body 50, the pet sheet 1 can also be easily taken out by pulling the pinching part.

[0204] Description of Reference Numerals

[0205] 1. Pet sheet; 2. Surface sheet; 2a. Surface; 3. Back sheet; 3a. Back; 4. Absorber; 7a. Bonding surface; 10. 10A. 10B. Main body; 10a. Edge (1st edge); 10b. Edge (2nd edge); 10c. Edge (3rd edge); 11. First part; 12. Second part; 50. Package; 71. Hook; 72. Hook sheet; 100. Treatment sheet (animal excrement treatment sheet); A1. Area (1st area); A2. Area (2nd area); A3. A5. Bonding area; A4. A6. Non-bonding area; E. Sheet edge; F. Wing; L1. Bending line; L2. Bending line (2nd bending line, 3rd bending line); L3. Bending line (2nd bending line); U. Excrement.

Claims

1. A pet sheet used to overlap with an animal excrement disposal sheet for absorbing animal excrement in a region where the excrement is absorbed, wherein: The pet sheet includes a main body having a liquid-permeable top sheet, a back sheet located on the opposite side of the top sheet, and an absorbent body arranged between the top sheet and the back sheet. The back sheet has a back surface facing the side opposite to the side facing the top sheet. A bonding surface for bonding with the animal excrement disposal sheet is provided on the back surface in a state of being exposed to the outside, The main body has a folding line formed therein for folding the main body in half so that the back surface becomes an inner side. The joining surface is configured such that, while only the first part of the main body is maintained in a folded state along the bending line so that the first part of the main body is located above the second part of the main body, the second part is naturally separated from the first part to release the folded state, wherein the first part is a part of the main body located on one side relative to the bending line, and the second part is a part of the main body located on the other side relative to the bending line.

2. The pet piece according to claim 1, wherein: The bonding surface is arranged so that, in the folded state, at least a portion of the bonding surface arranged in the first portion is opposite to at least a portion of the bonding surface arranged in the second portion. The bonding strength between the bonding surfaces is set so that, when only the first part of the pet piece is kept in the folded state in which the first part is located above the second part, the second part is separated from the first part by its own weight to release the folded state.

3. The pet piece according to claim 1, wherein: The bonding surfaces are arranged on the back surface such that the bonding surfaces do not face each other in the folded state.

4. The pet piece according to claim 1, wherein: In the area of ​​the second edge portion of the main body in the folded state along the opposite side of the first edge portion along the bending line, the length of the bonding area along the second edge portion where the bonding surface is provided is shorter than the length of the non-bonding area along the second edge portion where the bonding surface is not provided.

5. The pet piece according to claim 1, wherein: In the area along the third edge portion of the main body in the folded state, the length of the bonding area along the third edge portion where the bonding surface is provided is shorter than the length of the non-bonding area along the third edge portion where the bonding surface is not provided. In the folded state, the third edge portion is connected to the first edge portion along the bending line and intersects with the first edge portion.

6. The pet piece according to claim 1, wherein: The joining surface is arranged so as not to overlap with the bending line.

7. The pet piece according to claim 1, wherein: The combining surface is a hook surface provided with a plurality of hooks.

8. The pet piece according to claim 7, wherein: The height of the hook is 45 μm to 350 μm.

9. The pet piece according to claim 7, wherein: The back surface has a non-binding surface where the binding surface is not provided, At least a portion of the non-bonding surface that faces the bonding surface in the half-folded state is formed of a film that does not engage with the hook.

10. The pet piece according to claim 7, wherein: The hook surface is formed by the surface of the hook sheet bonded to the back surface. The hook sheet has a sheet edge portion, the sheet edge portion being along an edge portion of the main body portion in the folded state different from the first edge portion along the folding line, The edge of the sheet is not bonded to the back surface.

11. The pet piece according to claim 1, wherein: The main body portion has two second folding lines formed on both sides of the folding line for further folding the main body portion from the two-folded state into a four-folded state.

12. The pet piece according to claim 11, wherein: The joining surface is arranged so as not to overlap with both the bending line and the two second bending lines.

13. The pet piece according to claim 11, wherein: The two second bending lines have a third bending line for bending the main body so that the surface sheet is placed inside in the four-fold state. The joining surface is provided at least in a region on the opposite side of the third bending line from the side where the bending line is located.

14. The pet piece according to claim 1, wherein: When viewed from the top sheet side, a region along the second edge portion of the main body portion in the two-folded state opposite to the first edge portion along the folding line has a color tone different from that of a region where the absorbent body is arranged.

15. The pet piece according to claim 14, wherein: When viewed from the surface sheet side, the area along the third edge portion, except for the area along the second edge portion, has the same color tone as the area where the absorbent body is arranged, and the third edge portion is connected to the first edge portion and intersects with the first edge portion.

16. The pet piece according to claim 14, wherein: The rigidity of a region along the second edge portion in the main body portion is lower than the rigidity of a region in which the absorbent body is arranged in the main body portion.

17. The pet piece according to claim 1, wherein: The ratio of the cellulose fibers having a hydroxyl group in the absorbent body is 35% or less.

18. A pet sheet to be used overlapping with an animal excrement disposal sheet for absorbing animal excrement in a region where the excrement is absorbed, wherein: The pet sheet includes a main body having a liquid-permeable top sheet, a back sheet located on the opposite side of the top sheet, and an absorbent body arranged between the top sheet and the back sheet. The back sheet has a back surface facing the side opposite to the side facing the top sheet. A bonding surface for bonding with the animal excrement disposal sheet is provided on the back surface in a state of being exposed to the outside, The main body has a folding line formed therein so that the main body can be folded in half with the back side facing inward. The coupling surface is configured such that, in a folded state along the bending line, a portion of the coupling surface configured at a first portion of the main body portion located on one side relative to the bending line is opposite to a portion of the coupling surface configured at a second portion of the main body portion located on the other side relative to the bending line. An edge portion of the main body portion parallel to the folding line is formed by a flap portion where the absorbent body is not present.

19. A package containing a plurality of pet sheets, the pet sheets being used to overlap with an area of ​​an animal excrement disposal sheet for absorbing animal excrement, wherein: The pet film has: Liquid permeable surface sheet; a back sheet located on the opposite side of the surface sheet; and an absorbent body disposed between the surface sheet and the back surface sheet, The back sheet has a back surface facing the side opposite to the side facing the top sheet. The back side is provided with a bonding surface for bonding with the animal excrement disposal sheet. The plurality of pet sheets accommodated in the package are arranged such that the surface sheets of the adjacent pet sheets are in surface contact with each other in a folded state in which the pet sheets are folded with the back surfaces facing inward.

20. The package according to claim 19, wherein: The bonding surface of the pet sheet is not exposed to the outside in the folded state.

21. The package according to claim 20, wherein: At least a portion of the back surface of the pet sheet is exposed to the outside in the folded state.

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