JP5726599B2 - Absorbent sheet packaging for pets - Google Patents

Description

The present invention relates to a pet absorbent sheet package .

Conventionally, absorptive sheets for pets for absorbing urine etc. excreted by pets such as dogs and cats have become widespread.
As such a pet absorbent sheet, a configuration including a liquid-permeable top sheet, a liquid-impervious back sheet, and an absorbent body interposed between the top sheet and the back sheet is known. Yes. Then, it is common to sell a product in which several folds of three folded in the vertical direction and the horizontal direction are aligned (packaged).

Also, as shown in FIG. 4, in order to discriminate the pH of urine simultaneously with urination, it is special to demonstrate its function by getting wet with urine etc. on the surface side (the surface sheet itself or the surface sheet side of the absorber). There is an absorbent sheet for pets with designs (designs, patterns, etc.) printed with various functional inks. However, such a functional ink (for example, pH indicator) has a problem that the light resistance is weak and fading occurs when exposed to sunlight.
Therefore, for example, a measure for providing a package such as that disclosed in Patent Document 1 with a protection function from ultraviolet rays can be considered. Patent Document 1 discloses an absorbent product in which a protective area from ultraviolet rays is provided on the package in order to prevent deterioration of the adhesive contained in the diaper.

Special table 2010-540064 gazette

  However, in order to provide a protection area from ultraviolet rays as in Patent Document 1, it is necessary to provide the function of preventing ultraviolet rays from being applied to the package (packaging) material and the back sheet material. There was a problem that led to up.

The subject of the present invention is a pet that does not impair the original function of the design that has been given functionality by protecting the printing surface at low cost without using a material that protects from ultraviolet rays and without performing a special processing method. It is to provide an absorbent sheet package for use.

In order to solve the above problems, the invention according to claim 1 is a liquid-permeable top sheet, a liquid-impervious back sheet, and an absorber interposed between the top sheet and the back sheet. If made, the topsheet or the absorbent pet absorbent sheet have a printed surface and a plurality of fold segments using functional ink that serves the function by wet on the surface side of said plurality of folds in pet absorbent sheet wrapping body in which a plurality collectively in a state folded at the portion formed by film packaging,
The printing surface is
It consists of a printing part printed with the functional ink and a non-printing part,
The pet absorbent sheet folded at the plurality of crease portions is arranged in a plurality of parallel and plural stages so that the first crease portion faces the front of the pet absorbent sheet package,
The first fold portion is a non-printing portion.

  According to the first aspect of the present invention, the function is achieved by the light (sunlight or fluorescent light) received from the front while the pet absorbent sheet is stored in a packaged state or displayed on the shelf. It is possible to prevent the color ink printing from fading. Further, it is possible to prevent the design and functionality of the printing surface from being damaged by the crease.

The invention according to claim 2 is the pet absorbent sheet packaging body according to claim 1, wherein the pet absorbent sheet is packaged in the plurality of fold portions in a state where the pet absorbent sheet is packaged together . The second fold portion facing the back surface of the sheet package is also a non-printing portion.

  According to the invention described in claim 2, it is of course possible to have the same effect as that of the invention described in claim 1, and in particular, fading due to light received from the back surface can also be prevented.

A third aspect of the present invention is the pet absorbent sheet packaging body according to any one of the first or second aspects, wherein the non-printing portion is at least 10 mm from the fold. .

According to the invention described in claim 3, it is of course possible to obtain the same effect as that of the invention described in claim 1 or 2. In particular, fading of the absorbent sheet for pets due to storage in a packaged state is completely achieved. Can be prevented.

According to the present invention, the printing of the functional ink is faded by light (sunlight or light from a fluorescent lamp) received while the absorbent sheet for pets is stored in a packaged state or displayed on a shelf. Can be prevented without using a material that protects against ultraviolet rays.
Further, it is possible to prevent the design and functionality of the printing surface from being damaged by the crease.

It is a figure which shows the relationship between the printing surface of 1st Embodiment, and a crease | fold. It is a figure which shows a mode that the absorbent sheet for pets is each folded in X direction and Y direction. It is a figure explaining a mode that 54 absorptive sheets for pets of the state folded in three in each of XY directions are packed together. It is a figure which shows the relationship between the conventional printing surface and a crease | fold.

Hereinafter, the pet absorbent sheet according to the embodiment of the present invention will be described in detail with reference to the drawings. However, the scope of the invention is not limited to the illustrated examples.
In the following description, the longitudinal direction of the pet absorbent sheet is the X direction, and the direction (width direction) orthogonal to the X direction is the Y direction. Moreover, let the thickness direction of the absorbent sheet for pets be a Z direction.

(First embodiment)
The pet absorbent sheet according to the first embodiment of the present invention will be described.
For example, as shown in FIG. 1, the pet absorbent sheet has a rectangular shape in plan view. For example, the pet absorbent sheet is used on a floor surface of a pet toilet (not shown). The water | moisture content of the excreted excretion can be absorbed in a sheet | seat.

Specifically, the pet absorbent sheet includes a liquid-permeable surface sheet 2 that allows a liquid such as urine to rapidly permeate, a liquid-impermeable back sheet disposed on the back surface side of the surface sheet 2, and the surfaces thereof. An absorbent body or the like interposed between the sheet 2 and the back sheet is provided.
Moreover, the printing surface 1 is provided in the surface sheet 2 itself of the absorbent sheet for pets, or the substantially whole area | region of the surface side of an absorber.

The top sheet 2 is formed of a perforated or non-porous nonwoven fabric, a porous plastic sheet, or the like. As the raw material fibers constituting the nonwoven fabric, synthetic fibers such as polyethylene or polypropylene such as olefin, polyester and polyamide, recycled fibers such as rayon and cupra, and natural fibers such as cotton can be used. In addition, as a method for producing the nonwoven fabric, a known method can be appropriately used. For example, the nonwoven fabric is obtained by a spunlace method, a spunbond method, a thermal bond method, a melt blow method, a needle punch method, or a combination of these methods. Can be manufactured.
When many through-holes are formed in the surface sheet 2, liquid such as urine is absorbed more quickly, and the dry touch property is excellent.

The back sheet covers the bottom surface of the absorber, further covers the end surface of the absorber, and is folded back to the top sheet 2 side at both longitudinal side edges of the top surface of the absorber. The folded portion of the back sheet and the top sheet 2 are bonded by a hot melt adhesive, heat seal, ultrasonic seal or the like.
The back sheet is not particularly limited as long as it is a liquid-impermeable material. For example, a plastic film made of an olefin resin such as polyethylene or polypropylene, or a laminate in which a plastic film is provided on the surface of a nonwoven fabric. Examples include a non-woven fabric, a laminated sheet in which a non-woven fabric is laminated on a plastic film, and the like. In addition, non-woven fabric using micro-denier fiber, enhanced leakage prevention by reducing fiber voids by applying heat or pressure, coating with superabsorbent resin or hydrophobic resin or water repellent Thus, a sheet which is liquid-impermeable without using a plastic film can also be used as the back sheet.
In 1st Embodiment, the polyethylene (PE) film was used as a raw material of a back surface sheet.

The absorber absorbs a water-like component such as urine, and can be formed by, for example, an aggregate of fibers. As this fiber assembly, a filament assembly obtained by opening, as necessary, synthetic fiber tows (fiber bundles) such as cellulose acetate as well as short fibers such as cotton-like pulp and synthetic fibers Can also be used. Moreover, a super absorbent polymer (SAP; Super Absorbent Polymer hereafter abbreviated as “SAP”) may be combined with the fiber assembly to constitute an absorbent body.
Examples of the superabsorbent resin include carboxymethylcellulose, polyacrylic acid and salts thereof, acrylate polymer cross-linked product, starch-acrylic acid graft copolymer, starch-acrylonitrile graft copolymer hydrolyzate, polyoxyethylene cross-linked product Products, crosslinked products of water-swellable polymers such as polyethylene oxide and polyacrylamide, or copolymers of isobutylene and maleic acid are preferably used.
Furthermore, in order to give a deodorant function, you may put a deodorizer in an absorber. As the deodorant, for example, activated carbon, natural minerals (for example, bennite, kaolinite, kanemite, etc.), synthetic inorganic substances (zeolite, amorphous silica, etc.) can be used.

In the first embodiment, the surface of the absorber is covered with crepe paper (20 g / m ² ), and a pH indicator is provided on the skin surface of the crepe paper (the surface on the side in contact with the skin: the surface on the side in contact with the pet). The gravure printing was carried out at a printing area of 10 g / m ² and a printing area of 10 percent. As shown in FIG. 1, imitating pet footprints by avoiding areas of a certain width on both sides of the folds 101 and 102 (lighted portions of the folds facing the front and back in a state of being packaged together). The pattern is printed on almost the entire surface.

  The design is preferably applied with, for example, oil-based ink that does not bleed visually after urination. As a result, bleeding of the design can be prevented, and the design of the urination range can be clearly grasped. In order to prevent bleeding due to water absorption, the ink composition can contain a resin having a hydrophilic group and a hydrophobic group such as an acrylic resin, a nonionic water-soluble polymer, or polyvinyl alcohol as a binder. Furthermore, the ink composition contains a water-absorbing powder such as starch, kaolin, synthetic silica, glass, microcrystalline cellulose, ion-exchange cellulose, aluminum silicate, etc., and promotes contact between urine and pH indicator, pH indicator It is also possible to promote the color reaction.

The ink composition can contain a pH indicator that changes color depending on the pH of the urine upon contact with the urine. As the pH indicator, one or more selected from litmus, methyl orange, methyl red, bromothymol blue, thymol blue and the like can be contained. In particular, it is preferable to use a mixed indicator of methyl red and bromothymol blue because observation of a wide range of acidic, neutral and alkaline pH 4.0 to 9.0 is possible.
Not only the pH indicator but also expressive ink for determining whether urination has occurred (in the initial state, nothing appears to be printed and ink that prints out when urination is detected) or disappears Ink (printed contents can be seen in the initial state and disappears when urination is detected) can also be used.

  As shown in FIG. 2, the folding method is trifolded in each of the X direction and the Y direction with the skin surface inward. The folds 101 and 102 are folded in the X direction (FIGS. 2A and 2B), and the folds 103 and 104 are folded in the Y direction (FIGS. 2C and 2D).

As shown in FIG. 3, a large number (in this case, 54) of pet absorbent sheets folded in three in the X and Y directions are arranged in order and packaged together (pet absorbent sheet packaging) . At that time, a polyethylene (PE) film can be used as a packaging material. As shown in FIG. 3, the direction in which the fold line 101 ( first fold line ) faces is the same for all 54 pieces, and this is the front of the package. The front surface is a surface on which a trademark, a description of a product, and the like are printed on the package. A fold line 102 ( second fold line ) is aligned on the back surface opposite to the front surface. Further, the crease 103 faces the top surface, and the crease 104 faces the ground.

Table 1 shows the data of an experiment conducted to determine how much the width of the portion that avoids printing on both sides of the crease (the portion that is exposed to light) is made. What was printed across the crease using ink containing a pH indicator was packaged, and the condition of fading was examined based on what was left in a room exposed to sunlight for 60 days. As a result, an effect of preventing fading by storing the package state was recognized at a place 5 mm away from the crease. Then, it was found that at a place 10 mm away, there is an effect of completely preventing fading by storing the package state.
Here, pet absorbent sheet using the pulp ^{180g / m 2, SAP60g / m} 2, crepe paper 20 g / m ^2, the backsheet 18 g / m ^2, the absorbent body dimensions 290 mm × 390 mm, product dimensions 330 mm × 430 mm, The thickness of the product in a tri-fold state is 14 mm (under no load, thickness from direction 103 in FIG. 2).

In particular, since the number of breeders who are away during the day tends to increase, a thick type, that is, an absorbent sheet for pets corresponding to multiple urinations is required. A typical thick regular size (about 35 x 45 cm) absorbent sheet for pets is designed to absorb 2 to 3 urinations, with a single urination volume of 30 cc.
In order to make the functional design change visible when urinating three times, absorb at least three circles that do not overlap each other in the short direction (region that diffuses by one urination). It must have the ability (the implementation guideline of Table 1 has the ability), and the urination diameter per time becomes 10 cm or less. Thus, if there is a space that can accommodate three urinations in the short direction, there is sufficient absorption space for three times in the longer longitudinal direction. Just judge.

Therefore, if the non-printing width on both sides of the fold is set to 10 cm or more, urination cannot be reliably detected. Therefore, the width of the non-printing part is set to 10 cm on both sides of the fold, that is, within 5 cm on each side from the fold. In other words, the printing part is located within 50 mm from the center of the fold.
In the thick-type pet absorbent sheet, the number of times of absorption is 2 to 3 times, but in the case of a thin pet-type absorbent sheet, the number of times of absorption is 1 to 2 times. When the diffusion region is calculated, the urination diameter per time is 15 cm or less, that is, 7.5 cm or less on one side from the broken line.

  The absorbent sheet for pets according to the first embodiment does not print the design on the fold 101, that is, on the side where the light strikes from both sides of the crease facing the front in the packaging, while the pH indicator is not provided within 50 mm on both sides. The design with the ink to be included is printed. According to the first embodiment, while the pet absorbent sheet is stored in a packaged state or displayed on a shelf, it is particularly functional by light received from the front (sunlight or fluorescent light). Ink printing can be prevented from fading without using a material that protects against ultraviolet rays. Further, it is possible to prevent the design and functionality of the printing surface from being damaged by the crease.

(Second Embodiment)
Next, the pet absorbent sheet according to the second embodiment will be described.

  The absorbent sheet for pets of the second embodiment excludes not only the fold portion 101 facing the front when packaged but also the fold portion 102 facing the back from the printing range. Further, the crease portion 103 facing the top surface and the crease portion 104 facing the ground may be excluded from the printing range.

According to the second embodiment shaped state, in addition to the first embodiment forms on purpose similar effect is obtained, anti-fading effect upon package storage is further exhibited, the functionality of the pet absorbent sheet Will increase.

  In addition, this invention is not limited to the said 1st, 2nd embodiment, Of course, it can change suitably about a specific structure.

1, 91 Print surface (surface side of the surface sheet or absorber)
2,92 Top sheet 101,901 Crease part (crease part facing the front in a packaged state)
102,902 Crease part (crease part facing the back in a state of being packaged together)
103 Crease part (crease part facing the top surface in a packaged state)
104 Crease part (crease part facing the ground when packed together)

Claims (3)

It consists of a liquid-permeable top sheet, a liquid-impervious back sheet, and an absorbent body interposed between the top sheet and the back sheet, on the top sheet or on the surface side of the absorbent body pets pet absorbent sheet have a printed surface and a plurality of fold segments using functional ink that serves the function by wetted, formed by a plurality collectively film packaging in a state folded at the plurality of fold portions In absorbent sheet packaging for
The printing surface is
It consists of a printing part printed with the functional ink and a non-printing part,
The pet absorbent sheet folded at the plurality of crease portions is arranged in a plurality of parallel and plural stages so that the first crease portion faces the front of the pet absorbent sheet packaging body,
The absorbent sheet packaging for pets, wherein the first fold portion is a non-printing portion. In a state where the pet absorbent sheets are packaged together, the second fold portion facing the back surface of the pet absorbent sheet packaging body is also a non-printing portion among the plurality of fold portions. The absorbent sheet package for pets according to claim 1. The absorbent sheet package for pets according to any one of claims 1 and 2, wherein the non-printing portion has a range of at least 10 mm on both sides from the fold .

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