Absorbent article for pets

Abstract

To provide an absorbent article for pets, excellent in fitness to the waist of a pet, and prevented from slipping or taking off even when a pet moves around.SOLUTION: An absorbent article for pets comprises a liquid permeable top sheet, an absorbent pad having an absorber containing a highly absorbent polymer, a liquid impermeable back sheet, and an exterior body in this order, and has a back side part, a crotch part, and a ventral part. The absorbent article for pets is such that a hole for a tail is disposed in a central part in the width direction in the back side part of the exterior body; a pair of fastening tapes are disposed in both ends in the width direction in the ventral part of the exterior body; a fixing area is disposed in a central part in the width direction at a non-skin contact surface side in the back side part of the exterior body; a slip-off stop part having an area of 3% or more and 15% or less of an area of the exterior body is disposed in a central part in the width direction at a skin contact surface side in the back side part of the exterior body; and the adhesive force of the surface of the slip-off stop part is 0.10 N / cm or more and 0.55 N / cm or less.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to an absorbent article for pets provided with a displacement prevention part.

Background Art

[0002] As an article for treating excrement such as urine excreted by pets (companion animals) such as dogs and cats, there are known diaper-type absorbent articles for pets that are worn from the hind legs of the pet, and belt-shaped absorbent articles for pets that are wound around the body of the pet and worn.

[0003] However, pets may move around violently, stand, or sit repeatedly while wearing the absorbent article for pets, and in such cases, the absorbent article for pets may shift from its original position or come off. In order to prevent the article from coming off, in the case of a detachable absorbent article for pets, it can be prevented to some extent by tightly fastening a hook-and-loop tape or the like around the body, but there are problems such as the pet becoming less able to move its body or being stressed.

[0004] As a prior art of an absorbent article for solving such problems, for example, Patent Document 1 discloses a diaper body for pets that is detachably provided with a non-slip sheet having a surface that is less slippery than the inner surface on the inner surface of the diaper body. The inner surface of the diaper body is composed of an inner sheet with a hairy surface. The non-slip sheet has a male member of a hook-and-loop fastener on the back surface that can be attached to the surface of the inner sheet, and is detachably attached to the surface of the inner sheet by the male member of the hook-and-loop fastener. Further, the non-slip sheet is composed of a sheet material obtained by impregnating paper, non-woven fabric, or woven fabric with an elastomer. The invention has been proposed to provide a diaper for pets that is difficult to shift.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] However, even for absorbent articles for pets such as those in Patent Document 1, it is not possible to provide an absorbent article for pets that is difficult to shift and difficult to come off for all varieties of pets, and it has not been a fundamental solution. In particular, pets have various coat lengths and types depending on the breed, and it has been difficult to cope with the differences in shifting, ease of slipping, and ease of coming off due to these differences.

[0007] The present invention has been made in view of such circumstances, and an object thereof is to provide an absorbent article for pets that has excellent fitness around the pet's torso and does not shift or come off even when the pet moves around.

Means for Solving the Problems

[0008] The inventors of the present invention conducted intensive studies and provided a displacement prevention portion having a specific area and adhesive force at the central portion in the width direction on the skin contact surface side at the dorsal portion, whereby it is possible to obtain an absorbent article for pets that has excellent fitness around the pet's torso and does not shift or come off even when the pet moves around, and found that the above problems can be solved, leading to the completion of the present invention. Specifically, the present invention provides the following.

[0009] (1) The first aspect of the present invention is an absorbent article for pets, which includes a liquid-permeable top sheet, an absorbent pad having an absorber containing a superabsorbent polymer, a liquid-impermeable back sheet, and an outer wrapper in this order, and has a dorsal part, a crotch part, and a ventral part. A tail hole is provided at the center in the width direction of the dorsal part, a pair of fastening tapes are provided at both ends in the width direction of the ventral part, and a fastening region for forming a body opening by locking the fastening tape is provided at the center in the width direction on the non-skin contact surface side of the dorsal part. A misalignment prevention part having an area of 3% or more and 15% or less of the area of the outer wrapper is provided at the center in the width direction on the skin contact surface side of the dorsal part. The absorbent article for pets is characterized in that the adhesive force measured by the "180° peel adhesive force against a test plate" described in JIS Z 0237:2009 of the surface of the misalignment prevention part is 0.10 N / cm or more and 0.55 N / cm or less. (2) The second aspect of the present invention is the absorbent article for pets according to (1), wherein an adhesive is applied to the surface of the misalignment prevention part, and the coating amount of the adhesive is 10 gsm or more and 50 gsm or less. (3) The third aspect of the present invention is the absorbent article for pets according to (1) or (2), further comprising a second misalignment prevention part at both left and right ends of one longitudinal end on the skin contact surface side of the ventral part, wherein the total of the respective areas and the area of the misalignment prevention part is 3% or more and 15% or less of the area of the outer wrapper.

Advantages of the Invention

[0010] According to the present invention, it is possible to provide an absorbent article for pets that is excellent in fitness around the body of a pet and does not shift or come off even when the pet moves around.

Brief Description of the Drawings

[0011]

Figure 1

Embodiments for Carrying Out the Invention

[0012] Hereinafter, embodiments for carrying out the present invention (hereinafter referred to as embodiments) will be described in detail with reference to the drawings. These are presented for illustrative purposes and do not limit the present invention.

[0013] In the description of this specification, the longitudinal direction of the absorbent article 1 for pets is the direction extending along the front and rear of the pet when the absorbent article 1 for pets is worn, and is the direction indicated by the symbol X in the figure. The width direction of the absorbent article 1 for pets is a direction transverse or orthogonal to the longitudinal direction, and is the direction indicated by the symbol Y in the figure. Furthermore, the skin-contact surface is the surface arranged on the skin side of the pet when worn, among the front and back surfaces of each member of the absorbent article 1 for pets, and the non-skin-contact surface is the surface directed to the side opposite to the skin side of the pet when worn, among the front and back surfaces of each member of the absorbent article 1 for pets. Note that, as the absorbent article 1 for pets, disposable pet diapers are particularly exemplified. In addition, the pet in the present invention refers to so-called pet animals. As pets, dogs and cats are preferred, and dogs are more preferred. Also, the breed of the pet is not particularly limited, and its size (body size) is also not particularly limited.

[0014] <Absorbent article for pets> FIG. 1 is a plan view of the absorbent article 1 for pets according to an embodiment of the present invention as viewed from the top sheet 10 side. The absorbent article 1 for pets of the present invention includes a liquid-permeable top sheet 10, an absorbent pad 20 having an absorber containing a superabsorbent polymer, a liquid-impermeable back sheet 30, and an outer package 40 in this order, and has a dorsal part 1a, a crotch part 1b, and a ventral part 1c.

[0015] <Top sheet> The top sheet 10 may be formed from a base material having liquid permeability such that urine can move to the absorbent pad 20. For example, known hydrophilic nonwoven fabrics such as thermal bonded nonwoven fabric and spunbonded nonwoven fabric can be used. Further, the top sheet 10 may be embossed or perforated on the surface in order to improve liquid permeability. As methods for performing these embossing and perforating processes, known methods can be implemented without limitation. Further, in order to reduce irritation to the pet's skin, the top sheet 10 may contain lotion, antioxidant, anti-inflammatory component, pH adjuster, antibacterial agent, moisturizer, deodorant, fragrance, etc. In terms of strength, processability, and liquid rewet amount, the basis weight of the top sheet 10 is 5 g / m 2 or more and 50 g / m 2 or less, preferably 15 g / m 2 or more and 30 g / m 2 or less is more preferable. The shape of the top sheet 10 is not particularly limited, but it may be a shape that covers the absorbent pad 20, which is necessary to guide body fluid to the absorbent pad 20 so that there is no leakage.

[0016] <Absorbent Pad> In the absorbent article 1 for pets of the present invention, the size of the absorbent pad 20 is not particularly limited because the absorbent article 1 for pets can accommodate various pet sizes. However, the dimension in the longitudinal direction is preferably 250 mm or more and 600 mm or less, and more preferably 300 mm or more and 500 mm or less. Further, the dimension in the width direction of the absorbent pad 20 is preferably 20% or more and 40% or less of the dimension in the longitudinal direction.

[0017] (Absorbent Fiber) The absorbent body of the absorbent pad 20 contains a superabsorbent polymer (SAP), and preferably further contains absorbent fibers as a base material. The absorbent fiber is not particularly limited as long as it is generally used for absorbent articles for pets, and examples thereof include fluff pulp, cotton, rayon, acetate, tissue, absorbent paper, hydrophilic non-woven fabric, etc. Among these, from the viewpoint of absorbency, it is preferable to use fluff pulp. Examples of the fluff pulp include those obtained by defibrating wood pulp (e.g., softwood kraft pulp (N-BKP) such as southern pine and Douglas fir), synthetic fibers, resin fibers, non-wood pulp, etc. into a cotton-like state. When fluff pulp is used for the absorbent fiber as a base material in the absorber, the basis weight of the absorbent fiber is not particularly limited, but it is preferably 300 g / m 2 or more and 1500 g / m 2 or less, more preferably 450 g / m 2 or more and 1200 g / m 2 or less. Thereby, more body fluids (urine and feces) can be absorbed without impairing the feel on the pet's skin.

[0018] (Superabsorbent Polymer) The superabsorbent polymer of the absorber is not particularly limited as long as it can absorb body fluids and prevent backflow, and materials formed from materials such as sodium polyacrylate-based, polyaspartate-based, (starch-acrylic acid) graft copolymer, (acrylic acid-vinyl alcohol) copolymer, (isobutylene-maleic anhydride) copolymer and its saponified product can be used. Among these, from the viewpoint of the absorption amount per unit weight, sodium polyacrylate-based is preferable. In addition, in the absorber, the ratio of the weight of the superabsorbent polymer to the weight of the entire absorber, i.e., the weight of the superabsorbent polymer / the weight of the entire absorber × 100 (%) is preferably 15% or more, more preferably 20% or more and 50% or less.

[0019] In the absorber, the form of the absorbent fiber and the SAP may be one formed by mixing SAP particles in the absorbent fiber, or may be a SAP sheet in which SAP particles are fixed between the absorbent fibers. Further, for the purpose of preventing leakage of SAP particles and stabilizing the shape of the absorber, a carrier sheet may be provided to wrap the absorber (not shown). The base material of the carrier sheet may be any hydrophilic material, and examples thereof include hydrophilic non-woven fabrics such as tissue, absorbent paper, and airlaid non-woven fabric. When a plurality of carrier sheets are provided, the base materials of the plurality of carrier sheets may be the same or different.

[0020] <Backsheet> The backsheet 30 may be formed using a liquid-impermeable base material that prevents the body fluid held by the absorber from wetting the pet's skin and fur, and a plastic film such as a liquid-impermeable polyethylene film that is breathable or non-breathable can be used.

[0021] The basis weight of the backsheet 30 is not particularly limited, but from the viewpoints of strength and processability, it is preferably 10 g / m 2 or more and 30 g / m 2 or less, more preferably 15 g / m 2 or more and 20 g / m 2 or less. In order to make the backsheet 30 breathable, for example, a filler may be blended in the resin film of the base material, or the backsheet 30 may be embossed. Examples of the filler include calcium carbonate, and the blending method can be carried out without limitation by known methods.

[0022] <Outer package> In the pet absorbent article 1 of the present invention, the outer package 40 is disposed under the liquid-impermeable backsheet 30 (non-skin contact surface side). In addition, a tail hole 70 for passing the pet's tail is provided at the center in the width direction of the dorsal part 1a. The diameter of the tail hole 70 is not particularly limited, but it is preferably 20 mm or more and 40 mm or less. The tail hole 70 may be provided by completely cutting out the top sheet 10, the back sheet 30, and the exterior body 40 in a substantially circular shape. However, a part of the exterior body 40 may be left without being cut out, and it may have a so-called flap structure that opens when passing the pet's tail and closes when pulling out the tail.

[0023] <Fastening tape and fastening area> A pair of fastening tapes 50 are provided at both ends in the width direction of the ventral part 1c. On the skin contact surface side of the fastening tape 50, fastening means composed of hook members constituting a surface fastener for fastening the dorsal part 1a and the ventral part 1c is provided. It is preferable that a knob margin is provided at the tip of each fastening tape 50 on the free end side of the fastening means (not shown). On the other hand, a fastening area for locking the fastening tape 50 to form a body opening is provided at the center in the width direction of the dorsal part 1a on the non-skin contact surface side (not shown). A target tape formed of a loop member constituting a surface fastener is provided in the fastening area. When the absorbent article 1 for pets is worn on the pet, it is preferable that the fastening means is fixed to the target tape which is a loop member. Note that the hook member refers to a member composed of hook-shaped protrusions among the members constituting the surface fastener, and the loop member refers to a member paired with the hook member and having densely looped raised hairs. The surface fastener is configured by pairing this hook member and loop member. When wearing the absorbent article 1 for pets, pass the pet's tail through the tail hole 70, place the dorsal part 1a on the pet's back, bring the ventral part 1c to the pet's abdominal side, and fasten the fastening tape 50 to the fastening area (target tape) to attach it to the pet. Also, the dimension in the width direction of the fastening area is preferably 30 mm or more and 60 mm or less.

[0024] <Displacement prevention part> As shown in Fig. 1, the displacement prevention portion 60 is provided at the center in the width direction on the skin contact surface side of the back portion 1a. The area of the displacement prevention portion 60 is 3% or more of the area of the exterior body 40, and preferably 5% or more. If the area is less than 3%, the displacement prevention effect of the displacement prevention portion 60 becomes insufficient, and if the adhesive force described below is increased to complement the effect, the pet's hair is likely to fall out. Although there is no particular upper limit to the area of the displacement prevention portion 60, from the perspective of targeting the pet's back skin, about 15% is the maximum.

[0025] In addition, the adhesive force of the surface of the displacement prevention portion 60 measured by the "180° peel adhesive force against the test plate" described in JIS Z 0237:2009 is 0.10 N / cm or more and 0.55 N / cm or less, and preferably 0.20 N / cm or more and 0.40 N / cm or less. If the adhesive force is less than 0.10 N / cm, the displacement prevention effect is insufficient, and if it exceeds 0.55 N / cm, the adhesion to the pet's hair becomes too strong and the hair may fall out. By providing the displacement prevention portion 60 having the above adhesive force in this region, it is possible to obtain the absorbent article 1 for pets that does not shift or come off even when the pet moves around. In addition, since the displacement prevention portion 60 is provided in the back portion 1a, it is possible to mainly prevent the absorbent article 1 for pets from shifting from around the body, and it is also possible to obtain the absorbent article 1 for pets having excellent fitness to the pet's body circumference.

[0026] The material of the displacement prevention portion 60 is not particularly limited as long as it satisfies the above area and adhesive force. A material with a large adhesive force such as rubber or urethane may be attached to the surface of the corresponding portion, but it is particularly preferable to apply a hot melt adhesive. At this time, by applying a hot melt adhesive with high cohesive force and reduced adhesiveness, the displacement prevention portion 60 adheres to the pet's back with an appropriate strength like a so-called sticker, and it is possible to effectively prevent the absorbent article 1 for pets from shifting or coming off. In addition, by reducing the adhesiveness, it is possible to prevent problems such as the pet's hair falling out together when removing the absorbent article 1 for pets after use, or conversely, the glue (hot melt adhesive) remaining on the hair.

[0027] In addition, when applying the hot melt adhesive to the misalignment prevention part 60, the application amount of the hot melt adhesive is preferably 10 gsm or more and 50 gsm or less, and more preferably 20 gsm or more and 40 gsm or less. If the application amount is less than 10 gsm, the misalignment prevention effect of the misalignment prevention part 60 becomes insufficient, and the pet absorbent article 1 is likely to be misaligned or easily come off. If the application amount exceeds 50 gsm, the resistance to misalignment and coming off is sufficient, but the adhesion to the pet's hair becomes too strong, and when removing the pet absorbent article 1 after use, problems such as the pet's hair being pulled out together or, conversely, glue (adhesive) remaining on the hair may occur. Further, the application pattern of the hot melt adhesive when applying the hot melt adhesive to the misalignment prevention part 60 is not particularly limited, and a pattern commonly used when applying the hot melt adhesive to a non-woven fabric can generally be used. Examples of such application patterns include dot application, line application, surface application, spiral application, spray application, roll application, etc. Among them, surface application, spiral application, or spray application is preferable. Also, it may be applied directly to the surface to be applied, or may be applied on paper or the like pasted on the surface.

[0028] Furthermore, it is preferable that second misalignment prevention parts 61 are provided at both left and right ends of one longitudinal end on the skin contact surface side in the ventral part 1c. At this time, the area of each of the second misalignment prevention parts 61 is not particularly limited. For example, the total of the area of each of the second misalignment prevention parts 61 and the area of the misalignment prevention part 60 may be set to be 3% or more and 15% or less of the area of the exterior body 40. By providing the second misalignment prevention parts 61 with the above-mentioned area, the pet absorbent article 1 becomes more resistant to misalignment and coming off. In addition, the material of the second misalignment prevention part 61 and the like is not particularly limited, but similar to the misalignment prevention part 60, it is preferably coated with a hot melt adhesive. Also, the application amount and application pattern are preferably the same as those of the misalignment prevention part 60.

[0029] Although the present invention has been described using the embodiments, it goes without saying that the technical scope of the present invention is not limited to the scope described in the above embodiments and examples. It is obvious to those skilled in the art that various changes or improvements can be made to the above embodiments. Also, it is obvious from the description of the claims that forms with such changes or improvements can also be included in the technical scope of the present invention.

Example

[0030] The present invention will be described in more detail with the following examples and comparative examples, but the present invention is not limited by the following examples in any way.

[0031] Chihuahuas weighing 2 kg were each made to wear absorbent articles for pets in the form of diapers, each having a longitudinal dimension of 36.5 cm, a width dimension of 19 cm, and a wrapper area of 530 cm 2 At this time, for the absorbent articles for pets of Examples 1 to 6 and Comparative Examples 1 to 4, a hot melt adhesive with enhanced cohesion and reduced adhesiveness was applied to the central portion in the width direction on the skin contact surface side to form a displacement prevention portion. The application area, application amount, and adhesive strength of the displacement prevention portion in each example and comparative example are as shown in Table 1, and the adhesive strength was measured according to the "180° peel adhesive strength against a test plate" described in JIS Z 0237:2009.

[0032] (Presence or absence of displacement) With the absorbent article for pets on the Chihuahua, a load of 15 N or 10 N was applied to the absorbent article for pets with a force gauge, and the presence or absence of displacement when pulling backward was confirmed.

[0033] (Shedding of hair after wearing) After confirming the presence or absence of the above displacement, the absorbent article for pets was removed, and it was confirmed whether the hair of the Chihuahua had fallen out around the skin portion where the displacement prevention portion had touched. The results of each evaluation are shown in Table 1.

[0034]

Table 1

[0035] As shown in Table 1, the absorbent articles for pets of Examples 1 to 6 did not shift even when a load of 15 N or 10 N was applied, and the coat of the Chihuahua did not fall out even after wearing. On the other hand, all of the absorbent articles for pets of Comparative Examples 1 to 5 shifted even when a load of 10 N was applied, and / or the coat of the Chihuahua fell out after wearing. From the above, according to the absorbent article for pets of the present invention, it is possible to provide an absorbent article for pets that is excellent in fitness around the pet's body circumference and does not shift or come off even when the pet moves around.

Explanation of Reference Numerals

[0036] 1 Absorbent article for pet 10 Top sheet 20 Absorbent pad 30 Back sheet 40 Outer body 50 Fastening tape 60 Shift prevention part 61 Second shift prevention part 70 Hole for tail

Claims

1. An absorbent article for pets, comprising a liquid-permeable topsheet, an absorbent pad having an absorber containing a superabsorbent polymer, a liquid-impermeable backsheet, and an outer wrapper in this order, and having a dorsal part, a crotch part, and a ventral part, wherein a tail hole is provided at the center in the width direction of the dorsal part, a pair of fastening tapes are provided at both ends in the width direction of the ventral part, a fastening region for locking the fastening tape to form a body opening is provided at the center in the width direction on the non-skin contact surface side of the dorsal part, a displacement prevention part is provided at the center in the width direction on the skin contact surface side of the dorsal part, and second displacement prevention parts are provided at both left and right ends of one longitudinal end on the skin contact surface side of the ventral part, the displacement prevention part and the second displacement prevention part, have a hot melt adhesive applied to the surface, the application amount is 10 gsm or more and 50 gsm or less, the adhesive force of the surface, measured by the "180° peel adhesive force for test plate" described in JIS Z 0237:2009, is 0.10 N / cm or more and 0.55 N / cm or less, and the total area of the displacement prevention part and the second displacement prevention part is 3% or more and 15% or less of the area of the outer wrapper. An absorbent article for pets, characterized by the above.

2. The absorbent article for pets according to Claim 1, wherein the absorbent pad has a longitudinal dimension of 250 mm or more and 600 mm or less, and a width dimension of 20% or more and 40% or less of the longitudinal dimension.

3. The absorbent article for pets according to Claim 1 or 2, wherein the widthwise dimension of the fastening region is 30 mm or more and 60 mm or less.

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