Recyclable care products

Abstract

Providing recyclable care that simplifies the recycling process when discarded. 【Solution】Providing a recyclable care product comprising a breathable outer sheet means 2, a liquid-permeable inner sheet means 4, an absorbent means 3, and two adhesive tabs 5 made of the same polymer material.

Description

Technical Field

[0001] The present invention relates to recyclable articles, and more particularly to recyclable care articles.

Background Art

[0002] Existing care articles such as baby diapers and adult diapers are generally composed of a multi-layer structure of different polymer materials as described in, for example, Patent Document 1. When attempting to recycle the waste of used care articles, due to the different material properties of the polymer materials, many processes such as recycling, decomposition, and material purification are added, resulting in troublesome and inconvenient processes. Furthermore, existing care articles are made using long fiber pulp and must be crushed by a crusher before being used as an absorber, and a large amount of energy is also required for their manufacture. In addition, since existing care articles must bond the polymer material layers with a hot melt adhesive, a large amount of heat and carbon dioxide are generated during the manufacturing process.

[0003] Therefore, simplifying the recycling process when discarded after use by improving the structure of care articles has been a problem to be solved in the industry.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] In view of the above problems, an object of the present invention is to provide a recyclable care article that can simplify the recycling process when discarded after use.

Means for Solving the Problems

[0006] To achieve the above object, the present invention provides a breathable outer sheet means formed on a sheet body having a front end portion, a rear end portion on the opposite side of the front end portion, a left peripheral edge and a right peripheral edge each extending from the front end portion to the rear end portion, and a front surface and a back surface on the opposite side of the front surface, a sheet body that is overlapped on the front side of the breathable outer sheet means, and has a ventral connection portion fixed corresponding to the front end portion, a dorsal connection portion fixed corresponding to the rear end portion, a left connection portion fixed corresponding to the left peripheral edge, and a right connection portion fixed corresponding to the right peripheral edge, a liquid-permeable inner sheet means, an absorption means sandwiched between the liquid-permeable inner sheet means and the breathable outer sheet means at a location between the ventral connection portion, the dorsal connection portion, the left connection portion, and the right connection portion of the liquid-permeable inner sheet means, two adhesive tabs extending from a fixed end portion fixed to either one of the front end portion and the rear end portion on the back surface of the breathable outer sheet means to a mounting end portion removably attached to the other one of the front end portion and the rear end portion on the back surface of the breathable outer sheet means, a recyclable care product comprising: There is provided a recyclable care product in which the breathable outer sheet means, the liquid-permeable inner sheet means, the absorption means, and the two adhesive tabs are made of the same polymer material.

[0007] Further, the present invention is formed on a single pant-shaped sheet body that surrounds an inner space between an upper opening and two lower openings on the opposite side of the upper opening, and has a breathable outer sheet means having a front surface facing the inner space, A pant-shaped sheet body that is accommodated in the inner space of the breathable outer sheet means and is stacked on the front side, and an upper connection part that is fixed corresponding to the periphery of the upper opening of the breathable outer sheet means, and two lower connection parts that are fixed corresponding to the peripheries of the two lower openings, and liquid-permeable inner sheet means having the same; Absorbing means sandwiched between the liquid-permeable inner sheet means and the breathable outer sheet means so as to be located between the two lower connection parts on the opposite side of the upper connection part of the liquid-permeable inner sheet means, A recyclable care product comprising: There is also provided a recyclable care product in which the breathable outer sheet means, the liquid-permeable inner sheet means, and the absorbing means are made of the same polymer material.

Advantages of the Invention

[0008] As described above, in the recyclable care product of the present invention, since all the members constituting it are made of the same polymer material, when it is discarded after use, it is only necessary to execute the same recycling process for the same polymer material, and simplification of recycling and cost reduction become possible.

Brief Description of the Drawings

[0009]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Modes for Carrying Out the Invention

[0010] To more clearly explain the objectives, technical means, and advantages of the embodiments of the present invention, hereinafter, in combination with the accompanying drawings of the embodiments of the present invention, the technical means in the embodiments of the present invention will be clearly and completely described. It will be apparent that the described embodiments are some, but not all, of the embodiments of the present invention. Usually, the components of the embodiments of the present invention depicted and shown in the accompanying drawings can be arranged and designed in various different arrangements. Therefore, hereinafter, the detailed description of the embodiments of the present invention provided in the accompanying drawings does not constitute any limitation to the protection scope of the present invention, but merely shows the selected embodiments of the present invention.

[0011] Also, in the following description, it should be noted that elements performing the same role or function may be represented by the same number even if they do not have exactly the same configuration.

[0012] A first embodiment of the recyclable care product of the present invention is shown in FIGS. 1 to 3. As shown in FIG. 1, the recyclable care product P1 of this first embodiment is suitable for wrapping the waist and hips while exposing both feet of a human body (not shown), and is used to absorb liquids discharged from inside the human body to the outside, such as urine, blood, and secretions.

[0013] The recyclable care product P1 of the first embodiment of the present invention is substantially composed of a breathable outer sheet means 2, a liquid-permeable inner sheet means 4 adhered to the breathable outer sheet means 2, an absorbent means 3 sandwiched between the breathable outer sheet means 2 and the liquid-permeable inner sheet means 4, two adhesive tabs 5, and two stoppers 6. In the recyclable care product P1 of the first embodiment of the present invention, the breathable outer sheet means 2, the absorbent means 3, the liquid-permeable inner sheet means 4, each adhesive tab 5, each stopper 6, and the package means are made of the same polymer material. This same polymer material is polyolefin or polyester. Examples of polyolefin include polyethylene resin (PE) or polypropylene resin (PP), and an example of polyester is polyethylene terephthalate (PET).

[0014] The breathable outer sheet means 2 has a front end portion 211, a rear end portion 212 on the opposite side of the front end portion 211, a left peripheral edge 213 and a right peripheral edge 214 each extending from the front end portion 211 to the rear end portion 212, and is formed on a sheet body having a front surface 21 facing inward and a back surface 22 on the opposite side of the front surface 21 in the example shown in FIG. 2.

[0015] The liquid-permeable inner sheet means 4 is formed in a shape suitable for contacting the waist, abdomen, and buttocks of the human body, and is a sheet body that is overlaid on the front 21 side of the breathable outer sheet means 2, and has a ventral connection portion 411 adhesively fixed corresponding to the front end portion 211, a dorsal connection portion 412 adhesively fixed corresponding to the rear end portion 212, a left connection portion 413 adhesively fixed corresponding to the left peripheral edge 213, and a right connection portion 414 adhesively fixed corresponding to the right peripheral edge 214. Specifically, the liquid-permeable inner sheet means 4 can be configured as a non-woven fabric having pressing lines 42 formed on the surface that does not face the breathable outer sheet means 2, and in this first embodiment, the ventral connection portion 411, the dorsal connection portion 412, the left connection portion 413, and the right connection portion 414 of the liquid-permeable inner sheet means 4 are all configured to be stretchable. Also, as shown in the figure, in this first embodiment, the front end portion 211, the rear end portion 212, the left peripheral edge 213, and the right peripheral edge 214 of the breathable outer sheet means 2 to which the ventral connection portion 411 of the liquid-permeable inner sheet means 4 is connected are also configured to be stretchable.

[0016] The absorbing means 3 is sandwiched between the liquid-permeable inner sheet means 4 and the breathable outer sheet means 2 at a location between the ventral connection portion 411, the dorsal connection portion 412, the left connection portion 413, and the right connection portion 414 of the liquid-permeable inner sheet means 4. And the absorbing means 3 is formed to have a top surface 31 facing the liquid-permeable inner sheet means 4, a bottom surface 32 facing the breathable outer sheet means 2, and a plurality of absorption holes 30 having openings on both the top surface 31 and the bottom surface 32, and is used for absorbing the liquid discharged from the human body to the outside by having liquid absorbency. Also, in order to rapidly absorb the liquid, the absorbing means 3 can add a softening agent or a modifying agent, or improve the absorption performance by graft processing. Also, the absorbing means 3 used in the present invention can be configured by a plurality of fibers having the same thickness, or a plurality of fibers having different thicknesses, or a single-layer foam.

[0017] In this embodiment, both of the two adhesive tabs 5 extend from the fixed end portions fixed to the rear end portion 212 on the back surface 22 of the breathable outer sheet means 2 to the mounting end portions detachably attached to the front end portion 211. By applying an adhesive to the mounting end portions, they can be attached and adhered to the front end portion 211. Further, as the present invention, it is also possible that the fixed end portions of the adhesive tabs 5 are fixed to the front end portion 211 of the breathable outer sheet means 2 and the mounting end portions to which the adhesive is applied are configured to be adhesively attachable to the rear end portion 212 of the breathable outer sheet means 2.

[0018] The two stoppers 6 are connected to the left connection portion 413 and the right connection portion 414 of the liquid-permeable inner sheet means 4 by high-frequency welding or ultrasonic welding so as to protrude toward the opposite side of the breathable outer sheet means 2, respectively.

[0019] Furthermore, in this embodiment, the absorption means 3 is adhesively fixed to the front surface 21 of the breathable outer sheet means 2 by high-frequency welding or ultrasonic welding, and the ventral connection portion 411, the dorsal connection portion 412, the left connection portion 413, and the right connection portion 414 of the liquid-permeable inner sheet means 4 are adhesively fixed to the breathable outer sheet means 2 by high-frequency welding or ultrasonic welding, whereby the recycling process of the recyclable care product P1 of the first embodiment of the present invention becomes easier.

[0020] As described above, in the first embodiment of the present invention, the breathable outer sheet means 2, the absorbent means 3, the liquid-permeable inner sheet means 4, the respective adhesive tabs 5, and the respective stoppers 6 are all made of the same polymer material. The absorbent means 3 is adhesively fixed to the breathable outer sheet means 2 by high-frequency welding or ultrasonic welding, and the liquid-permeable inner sheet means 4 is also adhesively fixed to the breathable outer sheet means 2 by high-frequency welding or ultrasonic welding. The stopper 6 is also adhesively fixed to the liquid-permeable inner sheet means 4 by high-frequency welding or ultrasonic welding. Therefore, adhesion by an adhesive is not required. For this reason, in the first embodiment of the present invention, there is no need to join different materials with a hot-melt adhesive as in existing care products. When it is discarded after use, only the same recycling process for the same polymer material needs to be carried out, so simplification and cost reduction of recycling are possible.

[0021] Furthermore, the recyclable care product P1 of the first embodiment of the present invention can be provided in a state packaged by packaging means. Such packaging means can be configured as a packaging bag 9 shown in FIG. 3.

[0022] FIGS. 4 and 5 show a second embodiment of the recyclable care product of the present invention. The recyclable care product P1 of the second embodiment has substantially the same configuration as the first embodiment. The difference is that the recyclable care product P2 of this second embodiment is formed in a pant shape, so two adhesive tabs 5 are not required and are omitted.

[0023] That is, as shown in FIGS. 4 and 5, the recyclable care product P2 of the second embodiment of the present invention is substantially composed of a breathable outer sheet means 2, an absorbent means 3 adhesively fixed to the breathable outer sheet means 2, and a liquid-permeable inner sheet means 4 adhesively fixed to the breathable outer sheet means 2 so as to cover the absorbent means 3 and the breathable outer sheet means 2.

[0024] The breathable outer sheet means 2 is formed as a single pant-shaped sheet body that encloses an inner space 217 between an upper opening 215 and two lower openings 216 located on the side opposite to the upper opening 215, and has a front surface 21 facing the inner space.

[0025] The liquid-permeable inner sheet means 4 is a pant-shaped sheet body that is housed within the inner space 217 of the breathable outer sheet means 2 and overlapped on the front surface 21 side, and has an upper connecting portion 415 that is adhesively fixed corresponding to the periphery of the upper opening 215 of the breathable outer sheet means 2, and two lower connecting portions 416 that are adhesively fixed corresponding to the respective peripheries of the two lower openings 216, and is a non-woven fabric on which pressing lines 42 are formed on the surface that does not face the breathable outer sheet means 2.

[0026] The absorbing means 3 is formed to have a top surface 31 facing the liquid-permeable inner sheet means 4, a bottom surface 32 facing the breathable outer sheet means 2, and a large number of absorption holes 30 having openings on both the top surface 31 and the bottom surface 32, and is sandwiched between the liquid-permeable inner sheet means 4 and the breathable outer sheet means 2 so as to be located between the two lower connecting portions 416 on the side opposite to the upper connecting portion 415 that the liquid-permeable inner sheet means 4 has.

[0027] And, similar to the first embodiment, in this recyclable care product P2 of the second embodiment, the breathable outer sheet means 2, the absorbing means 3, and the liquid-permeable inner sheet means 4 are composed of the same polymer material.

[0028] Furthermore, the absorbing means 3 is adhesively fixed to the front surface 21 of the breathable outer sheet means 2 by high-frequency welding or ultrasonic welding, and the upper connecting portion 415 and the two lower connecting portions 416 of the liquid-permeable inner sheet means 4 are adhesively fixed to the breathable outer sheet means 2 by high-frequency welding or ultrasonic welding.

[0029] The upper connection part 415 and the two lower connection parts 416 of the liquid-permeable inner sheet means 4 are all configured to be stretchable, and the peripheral edge of the upper opening 215 and the peripheral edges of the two lower openings 216 of the breathable outer sheet means 2 are all configured to be stretchable.

[0030] In addition, annular stoppers 6 made of the same polymer material and protruding toward the opposite side of the breathable outer sheet means 2 are adhesively fixed to the locations adjacent to the two lower connection parts 416 of the liquid-permeable inner sheet means 4 respectively.

[0031] In each of the above embodiments of the present invention, an example configured as a diaper has been given, but the recyclable care products of the present invention can be formed into shapes other than diapers. As long as it has a configuration including the breathable outer sheet means 2, the absorbent means 3, and the liquid-permeable inner sheet means 4 similar to the recyclable care products of the present invention, it can also be configured as other care products such as sanitary sheets and sanitary napkins.

[0032] The above embodiments are illustrative of the principles and effects of the present invention and do not limit the present invention. Those skilled in the art can make some changes and modifications to the above embodiments on the premise of not departing from the spirit and scope of the present invention. Therefore, all changes and modifications made on the premise that those skilled in the art do not depart from the gist of the present invention should also be included in the protection scope of the present invention.

Explanation of Reference Numerals

[0033] 2 Breathable outer sheet means 21 Front 211 Front end 212 Rear end 213 Left peripheral edge 214 Right peripheral edge 215 Upper opening 216 Lower opening 217 Inner space 22 Back 3 Absorbent means 30 Absorption holes 31 Top surface 32 Bottom surface 4 Liquid-permeable inner sheet means 411 Ventral connection part 412 Dorsal connection part 413 Left connection part 414 Right connection part 415 Upper connection part 416 Lower connection part 42 Pressing pattern 5 Adhesive tab 6 Stopper 9 Packaging bag P1 Recyclable care product of the first embodiment P2 Recyclable care product of the second embodiment

Claims

1. a breathable outer sheet means formed on a sheet body having a front end, a rear end opposite to the front end, a left peripheral edge and a right peripheral edge extending from the front end to the rear end, respectively, and having a front surface and a back surface opposite to the front surface; a liquid-permeable inner sheet means which is a sheet body overlapped on the front side of the breathable outer sheet means and has a ventral side connection part fixed corresponding to the front end part, a back side connection part fixed corresponding to the rear end part, a left side connection part fixed corresponding to the left side peripheral edge, and a right side connection part fixed corresponding to the right side peripheral edge; an absorbent means sandwiched between the liquid-permeable inner sheet means and the breathable outer sheet means at a location between the abdominal side connection portion, the back side connection portion, the left side connection portion and the right side connection portion of the liquid-permeable inner sheet means; two adhesive tabs each extending from a fixed end portion fixed to one of the front end portion and the rear end portion on the back surface of the breathable outer sheet means to an attachment end portion removably attached to the other of the front end portion and the rear end portion on the back surface of the breathable outer sheet means; A recyclable care product comprising: A recyclable care product, wherein said breathable outer sheet means, said liquid permeable inner sheet means, said absorbent means and said two adhesive tabs are made of the same polymer material.

2. the absorbent means is formed to have a top surface facing the liquid-permeable inner sheet means and a bottom surface facing the breathable outer sheet means, and a number of absorbent holes having openings on both the top surface and the bottom surface; 2. The recyclable care product of claim 1, wherein said liquid-permeable inner sheet means is a nonwoven fabric having a embossed surface on the surface not facing said breathable outer sheet means.

3. The recyclable care product according to claim 1, wherein the abdominal connection portion, the back connection portion, the left connection portion and the right connection portion of the liquid-permeable inner sheet means are all configured to be stretchable.

4. The recyclable care product according to claim 1, wherein the left connecting portion and the right connecting portion of the liquid-permeable inner sheet means are respectively fitted with stoppers protruding toward the opposite side of the breathable outer sheet means and made of the same polymer material.

5. a breathable outer sheet means formed into a pant-shaped sheet body having an upper opening and two lower openings on the opposite side of the upper opening, surrounding an inner space between the upper opening and the two lower openings, and having a front surface facing the inner space; a liquid-permeable inner sheet means which is a pants-shaped sheet body accommodated in the inner space of the breathable outer sheet means and overlapped on the front side, and which has an upper connection part fixed to correspond to the periphery of the upper opening of the breathable outer sheet means, and two lower connection parts fixed to correspond to the periphery of each of the two lower openings; A recyclable care product comprising: an absorbent means sandwiched between the liquid-permeable inner sheet means and the breathable outer sheet means so as to be located between two of the lower connecting portions on the opposite side of the upper connecting portion of the liquid-permeable inner sheet means; A recyclable care article wherein said breathable outer sheet means, said liquid permeable inner sheet means and said absorbent means are made of the same polymeric material.

6. the absorbent means is formed to have a top surface facing the liquid-permeable inner sheet means and a bottom surface facing the breathable outer sheet means, and a number of absorbent holes having openings on both the top surface and the bottom surface; 6. A recyclable care product according to claim 5, wherein said liquid permeable inner sheet means is a nonwoven fabric having a embossed surface facing said absorbent means.

7. The recyclable care product according to claim 5, wherein the upper connection portion and the two lower connection portions of the liquid-permeable inner sheet means, and the peripheral edge of the upper opening and each of the two lower openings of the breathable outer sheet means are all configured to be stretchable.

8. The recyclable care product according to claim 5, wherein stoppers protruding toward the opposite side of the breathable outer sheet means and made of the same polymer material are attached to the liquid-permeable inner sheet means at locations adjacent to the two lower connection portions.

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