JP2005335382A - Absorber, sheet and packaging material, and manufacturing method for them - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide sanitary goods such as a disposable diaper using a recyclable absorber, various types of mat or various types of sheet for a person or an animal, and a packaging material. <P>SOLUTION: The absorber is equipped with a first water-absorbing paper layer part, a second water-absorbing paper layer part, and a water-absorbing material layer or a water-absorbing material layer part containing thermal polymeric gel and pulp, which is positioned between the layer parts; and the first water-absorbing paper layer part, the water-absorbing material layer part and the second water-absorbing paper layer part are integrally formed. A composition of the first water-absorbing paper layer part, the second water-absorbing paper layer part, the pulp, the thermal polymeric gel and a water-absorbing resin is used as the water-absorbing material layer part. Thus, the absorber after use can be easily dehydrated by virtue of the water absorbency of the pulp by being heated at a temperature as high as/higher than a temperature sensing point of the thermal polymeric gel. Additionally, a soluble component is removed by having the absorber after use soaked in water so as to absorb the water, and the absorber after use can be reused by being heated and dried at the temperature as high as/higher than the temperature sensing point. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an absorber, and more particularly to an absorber that can be easily regenerated, a method for producing the same, and use thereof. The present invention also relates to the use of the absorbent body, particularly sanitary sheets, bedding sheets, disposable diapers, milk pads, urine pads or sanitary napkins using the absorbent body, water absorbent sheets, mats or The present invention relates to a thin or thick water-absorbent rug or packaging material such as a sheet. The present invention also relates to an absorbent material containing a heat-sensitive polymer gel and pulp, which can be easily regenerated, a method for producing the same, and use thereof, in particular, sanitary sheets using the absorbent material, sheets for bedding, paper diapers, milk pads, The present invention relates to sanitary articles such as urine pads or sanitary napkins, thin or thick water-absorbent rugs or packaging materials such as water-absorbent sheets, mats or sheets. Furthermore, the present invention provides a heat-sensitive polymer gel, a water-absorbing resin, an absorbent material containing a pulp material and a plastic material, which are pulverized to a particle size of 7 mm or less, preferably 5 mm or less, and a process for producing the same. Its use, especially sanitary sheets such as sanitary sheets, bedding sheets, paper diapers, milk pads, urine pads or sanitary napkins using the absorbent, thin or thick water-absorbing sheets such as water-absorbing sheets, mats or sheets It relates to rugs or packaging materials. Furthermore, the present invention is formed by containing pulp waste material and waste plastic material, heat-sensitive polymer gel and water-absorbing resin pulverized to a particle size of 5 mm or less, and has an absorption function, a water retention function or a humidity control function, or two or more of these. Absorbent body having the above functions, its production method and use thereof, in particular, hygiene sheets, bedding sheets, paper diapers, and milk pads using the absorbent body having the absorption function, water retention function or humidity control function or two or more of these functions Further, the present invention relates to a hygienic article such as a urine pad or a sanitary napkin, a sheet using the absorbent body, a thin or thick water-absorbent rug or packaging material such as a mat or a sheet.

The present invention also relates to a thin or thick absorbent body having a water absorption adjustment function, a water retention adjustment function, and a humidity adjustment function, and in particular, a sanitary sheet, a bedding sheet, a paper diaper, and a milk having water absorption and water retention functions over a long period of time. The present invention relates to a hygienic article such as a pad, a urine pad, a sanitary napkin and the like, and a thin or thick water-absorbent rug or covering material such as a sheet, mat or sheet.
The present invention relates to an absorber containing a heat-sensitive polymer gel and a pulp material, and further containing a plastic material and / or a water-absorbing resin. Water-absorbing mats for preventing wet floors due to rain, water-absorbing mats for wet floor vehicles, trains or airplanes, rainy day hospitals, service areas, department stores, hotels, stores, office buildings Or a floor-absorbing water-absorbing mat used in leisure facilities, a water-absorbing mat for preventing wetness in a refrigerator, a water-absorbing mat for preventing floor wetting in a kitchen, and kitchen garbage or kitchen garbage Absorbent sheet for absorbing drip, water supply equipment, hot water supply equipment or water-absorbing mat for preventing floor wetting with sanitary ware such as toilets or toilets, and floors around refrigerators Water-absorbent mat for prevention is, oil-absorbing insoles mat for a gas station or the kitchen, leisure mat or massage therapy for sheets, and relates to an absorbent body, such as those used in bed for auxiliary mat. In addition to the above, the present invention also includes a packaging material having a water-retaining or humidity-control function for vegetables, fruits and vegetables, or fresh food, raw meat, prepared foods, lunch boxes, etc., as a packaging sheet in which the absorber is used. The present invention relates to a packaging material having a water retention or humidity control function, and a packaging material for seeds, strains, seedlings or bulbs. In addition to the above, the present invention also provides for the cleaning of the machinery, windows, indoors and outdoors, and the dew condensation and wetting on the ceiling, walls, floors, windows, etc. The present invention relates to a cleaning sheet such as a water-absorbing mat or a water-absorbing sheet used as a waste cloth or a dust cloth.

  The present invention also relates to an absorbent body that effectively uses pulp waste material, waste plastic material, recovered thermosensitive polymer gel, and water-absorbent resin, and in particular, the plant during cultivation of horticultural plants using such absorbent body. It relates to a covering sheet, a rug and a disposable absorbent mat covering the roots. Furthermore, the present invention relates to utilization of an absorbent body that effectively uses pulp waste material, waste plastic material, recovered thermosensitive polymer gel, and water-absorbent resin, and in particular, when a frozen marine product is transported, the marine product gets wet with defrosted water. Water-absorbing sheet for preventing water evaporation, water-absorbing sheet for preventing water evaporation covering potted plant, water-absorbing sheet laid under potted plant, water-absorbing sheet placed around water tank, water-absorbing sheet used for anti-condensation Further, the present invention relates to a water-drop absorbing mat that is disposed at a location where a drop drips, such as a receiving part of an umbrella stand, and absorbs water drops falling from the umbrella or the like. Furthermore, in the present invention, after absorbing water, the absorbed water can be released by heating to a temperature of, for example, about 50 ° C., and can be reused as a water-absorbing material by being further sanitized. It relates to a possible absorbent body.

Conventionally, for example, floor wetness has been wiped using cloth cloths or disposable cloth cloths, or stick cloths with various absorbent bodies such as cloth cloths, waste cloths, sponges, etc. In places that get wet with water or the like, a water-absorbing mat is laid to prevent the floor from getting wet.
On the other hand, a disposable human or animal sheet is provided with a first water-absorbing paper layer portion in contact with the inside of the water-impermeable film, and in contact with the inside of the water-impermeable thin layer portion at the bottom of the sheet. A second water-absorbing paper layer portion is provided, and paper powder containing a highly water-absorbing resin is disposed between the upper and lower paper layer portions.
Japanese Patent Laid-Open No. 2001-211981

  However, cloth cloths and bar cloths are used repeatedly, so that the used cloth can be reused by rinsing, squeezing away the adhering water, or rinsing water. It is a problem that requires a lot of trouble such as replacement. In addition, paper powder and highly water-absorbing resin are used for conventional disposable sheets, and in particular, pulverized pulp is used for paper powder. However, since pulp and pulp pulverized materials have recently been difficult to obtain and are relatively expensive, their use is difficult and problematic in terms of cost.

And although these absorbers are discarded after use, the amount is enormous, and most of them are incinerated, which is a problem. A water-absorbing resin is used for such an absorbent body. However, since the water-absorbing resin absorbs a considerable amount of water, it is difficult to dehydrate the water-absorbing resin during regeneration, and it has not been realized yet.
An object of this invention is to solve the problem which concerns on the raw material of the absorber used for a sheet, a mat, etc., or the problem which concerns on the regeneration process about the absorber after use.

  The inventor of the present invention increases the water absorption capacity of the absorber and facilitates the separation of water from the absorbed thermosensitive polymer gel by containing the pulp material together with the thermosensitive polymer gel as an absorber. Further, the present inventors have found that the water-absorbing water-absorbing resin can be easily dehydrated by allowing the pulp material and the thermosensitive polymer gel to coexist with the water-absorbing resin.

The present invention provides an absorbent body in which a water-absorbent resin can be easily regenerated by heating the used absorbent body to a relatively low temperature to regenerate the thermosensitive polymer gel. It is an object.
An object of the present invention is to provide a recyclable absorbent body, and to provide various mats that can be regenerated using the absorbent body or various sheets or packaging materials for humans or animals.

  That is, the present invention contains a thermosensitive polymer gel and pulp between the first water-absorbent paper layer portion, the second water-absorbent paper layer portion, and the first and second water-absorbent paper layer portions. A water-absorbing material layer portion or a heat-sensitive polymer gel, a water-absorbing material layer formed by containing pulp and a water-absorbing resin, the first water-absorbing paper layer portion, The absorbent material layer portion and the second water-absorbent paper layer portion are in an absorbent body characterized by being combined and integrally formed, and the present invention includes the first water-absorbent paper layer portion, A water-absorbing material layer portion or a heat-sensitive polymer formed between the second water-absorbing paper layer portion and the first and second water-absorbing paper layer portions, containing a thermosensitive polymer gel, pulp and plastic. A water-absorbing material layer formed by containing gel, pulp, plastic, and a water-absorbing resin. The absorbent paper layer portion, the water absorbent material layer portion, and the second water absorbent paper layer portion are combined and integrally formed, and the present invention further provides the first water absorbent Provided between the heat-sensitive paper layer, the second water-absorbent paper layer, and the first and second water-absorbent paper layers, and a smaller amount than the heat-sensitive polymer gel, pulp and plastic, and the heat-sensitive polymer gel. Water-absorbing material layer part formed by containing a surfactant or heat-sensitive polymer gel, pulp, plastic, water-absorbing material formed by containing a smaller amount of surfactant and water-absorbing resin than the heat-sensitive polymer gel The first water-absorbing paper layer portion, the water-absorbing material layer portion and the second water-absorbing paper layer portion are combined and formed integrally. Furthermore, the present invention provides a first water absorbent paper layer portion and a second water absorbent paper layer. A third water absorbent paper layer portion disposed between the first water absorbent paper layer portion and the second water absorbent paper layer portion, the first water absorbent paper layer portion and the third water absorbent paper layer portion. Between the water-absorbent paper layer portion, the first water-absorbing material layer portion or the heat-sensitive polymer gel, pulp and water-absorbing resin formed containing the heat-sensitive polymer gel and pulp are formed. A first water-absorbing material layer portion, a first water-absorbing material layer portion in which a water-absorbing resin is further mixed with the first water-absorbing material layer portion; the second water-absorbing paper layer portion; Between the water-absorbent paper layer portion, a water-absorbent resin is further mixed with the second water-absorbent material layer portion or the second water-absorbent material layer portion formed to contain the thermosensitive polymer gel and pulp. A second water-absorbing material layer portion, and the first, second and third water-absorbing paper layer portions and the first and second water-absorbing material layer portions are combined. The absorbent body is characterized by being integrally formed.

  Moreover, this invention is arrange | positioned between the 1st water absorbent paper layer part, the 2nd water absorbent paper layer part, and the said 1st water absorbent paper layer part and the 2nd water absorbent paper layer part. A first water-absorbing paper layer portion and a first water-absorbing paper layer portion formed between the first water-absorbing paper layer portion and the third water-absorbing paper layer portion, containing a thermosensitive polymer gel and pulp. First water-absorbing material layer portion formed by containing a water-soluble material layer portion or heat-sensitive polymer gel, pulp and water-absorbing resin, and the second water-absorbing paper layer portion and the third water-absorbing paper layer The second water-absorbing material layer formed by containing a heat-sensitive polymer gel, pulp and plastic between the portions or formed by containing a heat-sensitive polymer gel, pulp, plastic and a water-absorbing resin A second water-absorbing material layer portion, and the first, second and third water-absorbing paper layer portions and the first and second water-absorbing material layers. Is an absorbent body characterized by being combined and integrally formed, and the present invention further includes a first water-absorbing paper layer portion, a second water-absorbing paper layer portion, and the first water-absorbing paper layer portion. A third water-absorbing paper layer portion, a first water-absorbing paper layer portion and a third water-absorbing paper layer portion disposed between the water-absorbing paper layer portion and the second water-absorbing paper layer portion. In between, the first water-absorbing material layer formed containing a thermosensitive polymer gel, pulp and plastic, or the first formed containing a thermosensitive polymer gel, pulp, plastic and water-absorbing resin. The second water-absorbing material layer part, the second water-absorbing paper layer part and the third water-absorbing paper layer part are formed to contain a heat-sensitive polymer gel, pulp and plastic. Second water-absorbing material layer part or heat-sensitive polymer gel, pulp, plastic and water-absorbing resin And the first and second water-absorbing paper layer portions and the first and second water-absorbing material layer portions are combined and formed integrally. And further disposed between the first water absorbent paper layer portion, the second water absorbent paper layer portion, and the first water absorbent paper layer portion and the second water absorbent paper layer portion. The first water-absorbing paper layer portion formed between the first water-absorbing paper layer portion and the third water-absorbing paper layer portion and containing the thermosensitive polymer gel and pulp. First water-absorbing material layer portion, second water-absorbing paper layer portion and third water-absorbing paper formed by containing the water-absorbing material layer portion or heat-sensitive polymer gel, pulp and water-absorbing resin The second water-absorbing material layer portion or layer formed between the layer portions and containing a smaller amount of surfactant than the heat-sensitive polymer gel, pulp, plastic and heat-sensitive polymer gel. Comprises a second water-absorbing material layer formed by containing a surfactant and a water-absorbing resin in a smaller amount than the heat-sensitive polymer gel, pulp, plastic, and heat-sensitive polymer gel, The second and third water-absorbing paper layer portions and the first and second water-absorbing material layer portions are in an absorbent body characterized by being combined and integrally formed. The first water absorbent paper layer portion, the second water absorbent paper layer portion, and the third water absorbent paper layer portion disposed between the first water absorbent paper layer portion and the second water absorbent paper layer portion. Between the water-absorbing paper layer part, the first water-absorbing paper layer part and the third water-absorbing paper layer part, it contains a smaller amount of surfactant than thermal polymer gel, pulp, plastic and thermal polymer gel. Less than the first water-absorbing material layer formed by heat treatment or heat-sensitive polymer gel, pulp, plastic, heat-sensitive polymer gel A thermosensitive polymer gel is formed between the first water-absorbing material layer portion, which contains the surfactant and the water-absorbing resin, and the second water-absorbing paper layer portion and the third water-absorbing paper layer portion. , Heat-sensitive polymer gel, pulp, plastic and second water-absorbing material layer formed by containing a smaller amount of surfactant than heat-sensitive polymer gel or heat-sensitive polymer gel, heat-sensitive polymer gel, pulp, plastic A second water-absorbing material layer formed by containing a smaller amount of surfactant and water-absorbing resin than the thermosensitive polymer gel, and the first, second and third water-absorbing papers The layer portion and the first and second water-absorbing material layer portions are combined and integrally formed in the absorbent body.

  And, as described above, the present invention includes a water-permeable thin layer portion that forms a surface, a water-impermeable thin layer portion that forms a back surface, a water-permeable thin layer portion, and a water-impermeable thin layer portion. One water absorbent paper layer portion, a second water absorbent paper layer portion, and a water absorbent material layer portion provided between the first and second water absorbent paper layer portions, The first water-absorbing paper layer portion, the water-absorbing material layer portion and the second water-absorbing paper layer portion are combined and integrally formed to have an absorbent body, and the absorbent body has one surface thereof, The water-permeable thin layer portion is in contact with the back surface, and the other surface is disposed in contact with the surface of the water-impermeable thin layer portion. Here, the water-absorbing material layer portion includes pulp material and thermosensitive polymer gel. Water-absorbing mixture, pulp material, plastic material and water-absorbing mixture containing heat-sensitive polymer gel, pulp material or plastic material, The sheet is characterized in that it is formed by a water-absorbing mixture containing a thermal polymer gel and a surfactant, or a water-absorbing mixture containing a water-absorbing resin in each of these water-absorbing mixtures, and The present invention comprises a surface water-permeable thin layer portion that forms a surface and a back water-permeable thin layer portion that forms a back surface, and a surface between the surface water-permeable thin layer portion and the back water-permeable thin layer portion. The first water-absorbing paper layer portion on the side, the second water-absorbing paper layer portion on the back side, and the first water-absorbing paper layer portion and the second water-absorbing paper layer portion are disposed. A third water absorbent paper layer portion, and between the first water absorbent paper layer portion and the third water absorbent paper layer portion, a first water absorbent material layer portion on the surface side, A second water absorbent material layer portion on the back side between the second water absorbent paper layer portion and the third water absorbent paper layer portion; The third water-absorbing paper layer portion and the first and second water-absorbing material layer portions are each provided with an absorbent body that is integrally formed, and the absorbent body has both outer surfaces on its front side and back side. Are disposed in contact with the inner surfaces of the two permeable thin layer portions on the front surface and the back surface, and the first water-absorbing material layer portion on the surface side is formed of a pulp material and a thermosensitive polymer gel. Water-absorbing mixture, pulp material, plastic material, and water-absorbing mixture containing heat-sensitive polymer gel, pulp material, water-absorbing mixture or pulp material, plastic material, and heat-sensitive polymer containing heat-sensitive polymer gel A water-absorbing mixture containing gel or a heat-sensitive polymer gel, a pulp, plastic and a water-absorbing mixture containing a smaller amount of surfactant than heat-sensitive polymer gel, or each of these water-absorbing mixtures Further, the second water-absorbing material layer portion on the back side of the water-absorbing resin is formed of a water-absorbing mixture containing the water-absorbing resin, and the water-absorbing mixture and pulp containing the pulp material and the thermosensitive polymer gel. Water-absorbing mixture containing material, plastic material and thermosensitive polymer gel, water-absorbing mixture containing pulp material, plastic material and thermosensitive polymer gel, or water-absorbing mixture containing pulp material, plastic material and thermosensitive polymer gel, or Heat-sensitive polymer gel, pulp, plastic, and a mixture containing a smaller amount of surfactant than heat-sensitive polymer gel, or each of these water-absorbing mixtures is formed by a water-absorbing mixture further containing a water-absorbing resin. It is in the characteristic sheet.

  Further, according to the present invention, the water-permeable thin layer portion that forms the surface, the water-impermeable thin layer portion that forms the back surface, and the water-permeable thin layer portion and the water-impermeable thin layer portion as described above. A first water absorbent paper layer portion, a second water absorbent paper layer portion, and a water absorbent material layer portion provided between the first and second water absorbent paper layer portions, The first water-absorbing paper layer portion, the water-absorbing material layer portion, and the second water-absorbing paper layer portion are each provided with an absorbent body that is integrally formed. The surface is in contact with the inner surface of the water-permeable thin layer portion, and the back surface is disposed in contact with the inner surface of the water-impermeable thin layer portion. Layer part is a water-absorbing mixture containing pulp material and thermosensitive polymer gel, water-absorbing mixture containing pulp material, plastic material and thermosensitive polymer gel Water-absorbing mixture containing pulp material, plastic material and heat-sensitive polymer gel, or water-absorbing mixture or heat-sensitive polymer gel containing pulp material, plastic material and heat-sensitive polymer gel, less amount than pulp, plastic and heat-sensitive polymer gel A water-absorbing mixture containing a surfactant, or a water-absorbing mixture in which each of these water-absorbing mixtures further contains a water-absorbing resin. A surface-side water-permeable thin layer portion that forms a surface; a back-side water-permeable thin layer portion that forms a back surface; and between the surface-side water-permeable thin layer portion and the back-side water-permeable thin layer portion as described above , A first water absorbent paper layer portion, a second water absorbent paper layer portion, and a third water absorbent disposed between the first water absorbent paper layer portion and the second water absorbent paper layer portion. Paper layer and first water absorption Formed between the first water absorbent material layer portion formed between the layer portion and the third water absorbent paper layer portion, and between the second water absorbent paper layer portion and the third water absorbent paper layer portion. And the first, second and third water-absorbing paper layer portions and the first and second water-absorbing material layer portions are combined and integrated. The absorbent body is formed, and the absorbent body is formed by arranging both the outer surfaces of the front surface side and the rear surface side in contact with the inner surfaces of both of the front and rear water-permeable thin layer portions. The first water-absorbing material layer portion on the surface side comprises a water-absorbing mixture containing a pulp material and a heat-sensitive polymer gel, a pulp material, a plastic material, a water-absorbing mixture containing a heat-sensitive polymer gel, and a pulp material. A water-absorbing mixture or pulp material containing plastic material and thermosensitive polymer gel, plastic A water-absorbing mixture containing a stick material and a heat-sensitive polymer gel, or a heat-sensitive polymer gel, a water-absorbing mixture containing a smaller amount of surfactant than pulp, plastic and heat-sensitive polymer gel, or a water-absorbing resin in the water-absorbing mixture. The second water-absorbing material layer portion on the back side of the water-absorbing resin is formed of a water-absorbing mixture contained therein, the water-absorbing mixture containing pulp material and thermosensitive polymer gel, pulp material, plastic material and Water-absorbing mixture containing heat-sensitive polymer gel, pulp material, water-absorbing mixture containing plastic material and heat-sensitive polymer gel or water-absorbing mixture or heat-sensitive polymer gel containing pulp material, plastic material and heat-sensitive polymer gel, Water-absorbing mixture containing less surfactant than pulp, plastic and thermosensitive polymer gel, or this Each of the water-absorbing mixtures is provided with an absorbent body characterized in that it is formed of a water-absorbing mixture containing a water-absorbing resin, and the absorbent body has both the outer surface on the front side and the rear side, The packaging material is characterized by being formed by being in contact with the inner surfaces of both the front and back permeable thin layer portions.

  And, the present invention also includes a water-absorbing mixture containing pulp material and heat-sensitive polymer gel or a water-absorbing mixture containing pulp material, heat-sensitive polymer gel and water-absorbing resin on the back side absorbent paper, A surface-side absorbent paper is placed on the placed water-absorbing mixture, and the stacked surface-side absorbent paper, water-absorbing mixture and back-side absorbent paper are pressurized and formed integrally. The present invention further includes a water-absorbing mixture or pulp material, plastic material, heat-sensitive polymer gel, and water-absorbing resin containing pulp material, plastic material, and heat-sensitive polymer gel. The water-absorbing mixture is placed on the back-side absorbent paper, the surface-side absorbent paper is placed on the placed water-absorbing mixture, and the stacked back-side absorbent paper, water-absorbing mixture, and Add surface-side absorbent paper Further, the present invention provides a method for producing an absorbent body characterized in that it is integrally formed, and the present invention further comprises a pulp material, a plastic material and a water-absorbing mixture or pulp material containing a thermosensitive polymer gel, a plastic material, A water-absorbing mixture containing a thermosensitive polymer gel and a water-absorbing resin is placed on the back-side absorbent paper, a surfactant is adhered onto the placed water-absorbing mixture, and a surfactant solution is prepared. The surface-side absorbent paper is placed on the adsorbed water-absorbing mixture, and the stacked back-side absorbent paper, the water-absorbing mixture to which the surfactant solution is adhered, and the surface-side absorbent paper are pressurized and integrated. Further, the present invention relates to a water-absorbing mixture or pulp material containing a pulp material, a plastic material and a thermosensitive polymer gel, a plastic material, a sensitive material. The water-absorbing mixture containing the polymer gel and the water-absorbing resin was placed on the back-side absorbent paper, the surfactant solution was attached to the placed mixture, and the surfactant solution was attached. The pulp material was placed on the water-absorbing mixture, the surface-side absorbent paper was placed on the pulp material, and the superposed back-side absorbent paper and pulp material were placed to attach the surfactant solution. The absorbent body manufacturing method is characterized in that the water-absorbing mixture and the front-side absorbent paper are pressurized and formed integrally.

  And, the present invention places the back side water-absorbing mixture containing the pulp material and the thermosensitive polymer gel or the back side water-absorbing mixture containing the pulp material, the thermosensitive polymer gel and the water absorbing resin on the back side absorbent paper, An intermediate absorbent paper is placed on the back side water-absorbing mixture, and after placing, the pulp material and the thermosensitive polymer are placed on the placed intermediate absorbent paper without being subjected to pressure molding or pressure molding. A surface-side water-absorbing mixture containing a gel or a pulp material, a heat-sensitive polymer gel and a water-absorbing resin-containing surface-side water-absorbing mixture are placed on the surface-side water-absorbing mixture placed on the surface side It is characterized in that an absorbent paper is placed, and the stacked back-side absorbent paper, back-side water-absorbing mixture, intermediate absorbent paper, surface-side water-absorbing mixture and surface-side absorbent paper are pressed and formed integrally. And the present invention provides A backside water-absorbing mixture containing pulp material, plastic material and heat-sensitive polymer gel or a back-side water-absorbing mixture containing pulp material, plastic material, heat-sensitive polymer gel and water-absorbing resin is placed on the backside absorbent paper. The intermediate absorbent paper is placed on the back-side water-absorbing mixture, and after the placement, the pulp material and the heat sensitive paper are placed on the placed intermediate absorbent paper without pressure molding or pressure molding. A surface-side water-absorbing mixture containing a molecular gel or a pulp material, a heat-sensitive polymer gel and a surface-side water-absorbing mixture containing a water-absorbing resin are placed on the surface-side water-absorbing mixture placed on the surface. A side absorbent paper is placed, and the stacked back side absorbent paper, back side water absorbent mixture, intermediate absorbent paper, front side water absorbent mixture and front side absorbent paper are pressed and formed integrally. In the manufacturing method of the absorber Further, the present invention provides a back side water-absorbing mixture containing a pulp material, a plastic material and a heat-sensitive polymer gel or a back side water-absorbing mixture containing a pulp material, a plastic material, a heat-sensitive polymer gel and a water-absorbing resin. Place on the absorbent paper, place the intermediate absorbent paper on the back side water-absorbing mixture, and place the intermediate absorbent paper on the placed intermediate absorbent paper without pressure molding or pressure molding after placement. A surface-side water-absorbing mixture containing pulp material, heat-sensitive polymer gel and plastic material or a surface-side water-absorbing mixture containing pulp material, heat-sensitive polymer gel, plastic material and water-absorbing resin is placed and placed. A surface-side absorbent paper is placed on the surface-side water-absorbent mixture, and the back-side absorbent paper, back-side absorbent mixture, intermediate absorbent paper, surface-side absorbent mixture and surface-side absorbent paper are stacked. Pressurize In addition, the present invention provides a method for producing an absorbent body characterized by being formed integrally, and the present invention further relates to a backside water-absorbing mixture or pulp material containing a pulp material, a plastic material, and a thermosensitive polymer gel, a plastic material, and a thermosensitive material. A back-side water-absorbing mixture containing a polymer gel and a water-absorbing resin is placed on the back-side absorbent paper, a surfactant solution is attached to the back-side water-absorbing mixture, and the back-side water-absorbing material to which the surfactant is attached An intermediate absorbent paper is placed on the adhesive mixture, and after the placement, the pulp material, the heat-sensitive polymer gel and the plastic material are placed on the placed intermediate absorbent paper without being subjected to pressure molding or pressure molding. A surface-side water-absorbing mixture or a pulp material, a heat-sensitive polymer gel, a plastic material and a water-absorbing resin-containing surface-side water-absorbing mixture are placed on the placed surface-side water-absorbing mixture, A surface-side absorbent paper is placed, and the stacked back-side absorbent paper, back-side water-absorbing mixture, intermediate absorbent paper, surface-side water-absorbing mixture, and surface-side absorbent paper are pressed and integrally formed. Further, the present invention relates to a back-side water-absorbing mixture or pulp material containing a pulp material, a plastic material, and a thermosensitive polymer gel, a plastic material, a thermosensitive polymer gel, and a water-absorbing material. The backside water-absorbing mixture containing the resin is placed on the backside absorbent paper, the surfactant solution is attached to the backside water absorbent mixture, and on the backside water absorbent mixture to which the surfactant is attached, Surface-absorbing water containing pulp material, heat-sensitive polymer gel and plastic material is placed on the placed intermediate absorbent paper without placing the intermediate absorbent paper and then pressure molding or pressure molding after placement. Sex mixture or Pal A surface-side water-absorbing mixture containing a material, a heat-sensitive polymer gel, a plastic material and a water-absorbing resin is placed, and a surfactant solution is attached to the placed surface-side water-absorbing mixture. A surface-side absorbent paper is placed on the adhered surface-side water-absorbing mixture, and the stacked back-side absorbent paper, back-side water-absorbing mixture, intermediate absorbent paper, surface-side water-absorbing mixture, and surface-side absorbent paper The method of manufacturing an absorbent body is characterized by pressurizing and integrally forming.

  In the present invention, the water-absorbing mixture is placed on the back-side absorbent paper, the surface-side absorbent paper is placed on the placed water-absorbing mixture, and the superposed surface-side absorbent is placed. Press the paper, water-absorbing mixture, and back side absorbent paper, and place the nonwoven fabric on the surface side absorbent paper of the absorbent body that is integrally formed and place the nonwoven fabric under the back side absorbent paper. In addition, at least a part of the periphery of both of the non-woven fabrics that are arranged is manufactured by integrally pressing them together, and the water-absorbing mixture includes a pulp material and a heat-sensitive polymer gel, a water-absorbing mixture, a pulp material, and a plastic material. And a water-absorbing mixture containing a heat-sensitive polymer gel, a pulp material, a plastic material and a water-absorbing mixture containing a heat-sensitive polymer gel, or a pulp material, a water-absorbing mixture containing a plastic material and a heat-sensitive polymer gel, or In the sheet manufacturing method, the water-absorbent mixture is further mixed with each of the water-absorbent mixtures, and the present invention provides a back-side water-absorbent mixture on a back-side absorbent paper. The surfactant solution is adhered to the back side water-absorbing mixture, and an intermediate absorbent paper is placed on the back side water-absorbent mixture to which the surfactant is adhered, and the placed intermediate absorbent paper A surface-side water-absorbing mixture is placed on the surface-side water-absorbing mixture, and a surfactant solution is attached to the placed surface-side water-absorbing mixture. Place side absorbent paper and pressurize the stacked back side absorbent paper, back side water absorbent mixture, intermediate absorbent paper, surface side water absorbent mixture and surface side absorbent paper to form an absorbent body integrally. , A non-woven fabric is placed on the surface side absorbent paper of the formed absorbent body. Then, the back side absorbent paper is covered, a plastic film is placed, and the absorbent body on which the nonwoven fabric and the plastic film are placed is molded by pressure, and the surface side water-absorbing mixture contains pulp material and thermosensitive polymer gel. Water-absorbing mixture containing pulp material, plastic material and thermosensitive polymer gel, or water-absorbing mixture containing pulp material, plastic material, thermosensitive polymer gel and surfactant, or these water-absorbing mixtures Each of these is a water-absorbing mixture further containing a water-absorbing resin, and the back-side water-absorbing mixture contains a water-absorbing mixture containing a pulp material and a thermosensitive polymer gel, a pulp material, a plastic material, and a thermosensitive polymer gel. Water-absorbing mixture or water-absorbing material containing pulp material, plastic material, heat-sensitive polymer gel and surfactant The sheet or the water-absorbing mixture is a water-absorbing mixture that further contains a water-absorbing resin.

  In the present invention, the water-absorbing mixture is placed on the back-side absorbent paper, the surface-side absorbent paper is placed on the placed water-absorbing mixture, and the superposed surface-side absorbent is placed. Press the paper, water-absorbing mixture, and back side absorbent paper, and place the nonwoven fabric on the surface side absorbent paper of the absorbent body that is integrally formed and place the nonwoven fabric under the back side absorbent paper. In addition, at least a part of the periphery of both of the non-woven fabrics that are arranged is manufactured by integrally pressing them together, and the water-absorbing mixture includes a pulp material and a heat-sensitive polymer gel, a water-absorbing mixture, a pulp material, and a plastic material. And a water-absorbing mixture containing a heat-sensitive polymer gel, a pulp material, a plastic material and a water-absorbing mixture containing a heat-sensitive polymer gel, or a pulp material, a water-absorbing mixture containing a plastic material and a heat-sensitive polymer gel, or A water-absorbing mixture in which a water-absorbing resin is further mixed with each of the water-absorbing mixtures. Place the surfactant solution on the backside water-absorbing mixture, place the intermediate absorbent paper on the backside water-absorbing mixture to which the surfactant is attached, and place the intermediate absorption paper on the backside water-absorbing mixture. A surface-side water-absorbing mixture is placed on paper, a surfactant solution is attached to the placed surface-side water-absorbing mixture, and on the surface-side water-absorbing mixture to which the surfactant is attached, Place the front side absorbent paper and pressurize the stacked back side absorbent paper, back side water absorbent mixture, intermediate absorbent paper, front side water absorbent mixture and front side absorbent paper to form an absorbent body integrally Then, a non-woven fabric is placed on the surface side absorbent paper of the formed absorbent body. Place the plastic film over the back side absorbent paper, and press-mold the absorbent body on which the nonwoven fabric and the plastic film are placed, and the surface side water-absorbing mixture contains the pulp material and the thermosensitive polymer gel. Water-absorbing mixture, pulp material, plastic material and water-absorbing mixture containing heat-sensitive polymer gel, or water-absorbing mixture containing pulp material, plastic material, heat-sensitive polymer gel and surfactant, or water-absorbing mixture thereof Each of the water-absorbent mixture further contains a water-absorbent resin, and the back-side water-absorbent mixture comprises a water-absorbent mixture containing a pulp material and a thermosensitive polymer gel, a pulp material, a plastic material, and a thermosensitive polymer gel. Water-absorbing mixture containing or water-absorbing containing pulp material, plastic material, thermosensitive polymer gel and surfactant Or a water-absorbent mixture in which each of these water-absorbent mixtures further contains a water-absorbent resin.

  In the present invention, the absorber is a blend of pulp having a particle size of 5 mm or less and a thermosensitive polymer gel, a pulp having a particle size of 5 mm or less, a blend of a thermosensitive polymer gel and a water-absorbing resin, or a pulp having a particle size of 5 mm or less. Water absorption of a mixture of a plastic pulverized to a particle size of 5 mm or less and a heat-sensitive polymer gel, or a pulp of a particle size of 5 mm or less, a plastic pulverized to a particle size of 5 mm or less, a combination of a heat-sensitive polymer gel and a water-absorbing resin Since it is made of a functional material layer, it can be easily dehydrated by heating the absorber after use to a temperature above the temperature sensitive point, and it can be dissolved by immersing the absorber after use in water. Except for the components, it can be reusable by heating and drying at a temperature higher than the temperature sensitive point. Also, the water-absorbent resin can be dehydrated by the thermosensitive polymer gel, and the used disposable diaper can be reclaimed.

In the present invention, an absorber or absorbent member made of expensive pulp or regenerated fluff pulp can be dehydrated by heat treatment by blending with a thermosensitive polymer gel, and after dehydration, pulverization Then, for example, it is separated by classification or the like and can be reused. Conventionally, the absorbent body, in particular disposable disposable diapers, has been discarded after a single use. However, the present invention facilitates heat dehydration by blending the heat-sensitive polymer gel into the absorbent body, thereby saving resources. Effective use can be planned.
In addition to the water-absorbent resin, a heat-sensitive polymer gel is used, and pulp is used to quickly absorb the discharged water at the temperature sensitive point. By making it positive, the thermosensitive polymer gel can be regenerated and absorbed without allowing the absorbent resin to absorb water. Furthermore, the present invention can produce an absorbent body by using pulp waste material or waste plastic material, and therefore can provide an inexpensive absorbent body as compared with a conventional absorbent body, and a disposable diaper. Can be used for sanitary products such as sanitary products, animal sheets, water-absorbing mats and packaging materials, and cheap sanitary products, animal sheets, water-absorbing mats and packaging materials can be provided. Moreover, by attaching a surfactant to the water-absorbing material layer, the plastic material-containing waste material surface can be easily wetted, the water absorption rate can be increased, and the plastic waste material can be used. In the absorbent body and the sheet of the present invention, the use of a surfactant can relatively increase the water absorption rate. For example, it can be placed on the floor to keep the floor dry even if water drops fall on the floor. be able to. Therefore, for example, it can be placed on the floor to prevent it from getting wet with water on the floor, and in the case of an open-air event venue, it can be kept dry even on rainy days by laying in the aisle. It is effective that it does not give discomfort due to the wetness of the passage.

In the present invention, the water-absorbing action of the absorbent body is performed by the absorbent paper and the water-absorbing material layer as in the conventional absorbent body. In the absorbent body of the present invention, the water-absorbent paper layer portion can be formed in two layers, a first water-absorbent paper layer portion on the front side and a second water-absorbent paper layer portion on the back side. Side first water absorbent paper layer portion, back side second water absorbent paper layer portion, and intermediate third water absorbent paper layer portion provided between the first and second water absorbent paper layer portions Can be formed in three layers. When forming the water-absorbent paper layer portion in two layers, the water-absorbent material layer portion is provided between the first water-absorbent paper layer portion on the front surface side and the second water-absorbent paper layer portion on the back surface side. Can do. When the water-absorbing paper layer portion is formed in three layers, the water-absorbing material layer portion is composed of two layers, a first water-absorbing material layer portion on the front side and a second water-absorbing material layer portion on the back side. And the first water-absorbing material layer portion on the surface side is formed between the first water-absorbing paper layer portion on the surface side and the third water-absorbing paper layer portion in the middle. The water absorbent material layer portion is formed between the intermediate third water absorbent paper layer portion and the second water absorbent paper layer portion on the back side.
In the present invention, when the water-absorbing paper layer portion is formed in two layers, the first water-absorbing paper layer portion on the front side and the second water-absorbing paper layer portion on the back side are thin paper, water-absorbing paper, rayon paper or sanitary paper. Or it can be set as the paper which combined these 2 or more types. When the water-absorbing paper layer portion is formed in three layers, the first water-absorbing paper layer portion on the front side and the second water-absorbing paper layer portion on the back side are intermediate to form the front and back surfaces of the absorber. It requires strength as compared with the third water-absorbing paper layer, and is preferably a thin paper, water-absorbing paper, rayon paper, sanitary paper, or a combination of two or more thereof. In the present invention, the intermediate third water-absorbing paper layer is preferably thin paper, water-absorbing paper, sanitary paper, or a combination of two or more of these.

  In the present invention, a heat-sensitive polymer gel is used for the water-absorbent material layer portion of the absorbent body used for sanitary products such as disposable diapers, milk pads, urine pads, sanitary napkins, etc. so that reprocessing can be performed. . The thermosensitive polymer gel has a property of absorbing water at a temperature lower than the temperature sensitive point and releasing the absorbed water when heated to a temperature higher than the temperature sensitive point. When a heat-sensitive polymer gel having an appropriate temperature point is used for the water-absorbent material layer portion of the absorber, the water-containing absorber after use is brought to a temperature of, for example, about 35 ° C. of the temperature point of the heat-sensitive polymer gel. By heating, the moisture absorbed in the thermosensitive polymer gel can be separated. Thermosensitive polymer gels are already commercially available as thermosensitive polymer gels or thermogels, and those having an appropriate temperature are available. Since the heat-sensitive polymer gel has a smaller water absorption capacity than a highly water-absorbing polymer, that is, a highly water-absorbing resin, pulp is added together with a water-absorbing resin such as a highly water-absorbing resin in order to maintain water absorption. When the water-absorbing resin containing water is brought into contact with the thermosensitive polymer gel not containing water, a part of the water absorbed by the water-absorbing resin can be separated and removed from the water-absorbing resin. In the present invention, the absorbed absorbent body is collected, dried by heating, crushed and classified. Pulp and other materials thus classified are sanitized, for example, the recovered pulp material is reused as a general pulp material, and the recovered water absorbent resin is reused as a general water absorbent resin. Can do. Moreover, in this invention, each raw material of the collect | recovered absorber is sanitized and can be used again as a raw material of an absorber, and can also be used as a sheet or a packaging material. However, it can be granulated into a granular animal excrement disposal material.

  When the absorbent body of the present invention is used as an absorbent body for sanitary products and sheets such as disposable diapers, milk pads, urine pads, sanitary napkins, or as an absorbent body for packaging materials, the absorbent body of the present invention is a sheet. Or it is manufactured to the size used for the packaging material, a water-permeable nonwoven fabric is arranged on the surface of the manufactured absorber, and a water-impermeable waterproof sheet or a waterproof membrane is arranged under the absorber. The absorbent body is formed into a sheet-like shape in which the absorbent body is wrapped with a water-permeable nonwoven fabric and a water-impervious waterproof sheet or the like, and is integrally formed, and is treated hygienically, for example, a paper diaper, sanitary napkin, milk As a pad or urine pad, it is possible to prevent urine from leaking during excretion. Further, as other sheets, for example, various sheets for rest and sleeping can be used.

  The sheet of the present invention is, for example, a mat that can absorb water from the front side or the front and back sides by forming a water-permeable thin layer member on the front side or the front and back sides to form a sheet. Furthermore, as a packaging material, it can be used as a packaging material capable of absorbing or adjusting moisture from one surface on the front surface side or both surfaces on the front surface side and the back surface side. In this case, the absorbent body is provided with a first water-absorbing paper layer portion on the surface side and a second water-absorbing paper layer portion on the bottom surface side. In the absorbent body of the present invention, the water-absorbing paper layer portions provided on the front side and the back side are formed of thin paper, water-absorbing paper, rayon paper, sanitary paper, etc. that have good water absorption and high water absorption speed. Is preferred. When using the absorbent body of the present invention as a sheet or a packaging material, the water-permeable thin layer portion that is disposed on the upper water-absorbent paper layer portion of the absorbent body and forms the surface is formed of, for example, a nonwoven fabric. The water-impermeable thin layer portion that is disposed under the lower water-absorbent paper layer portion of the absorbent body and forms the bottom surface can be formed of, for example, a plastic film. In the present invention, the sheet and the packaging material can be formed of a water-permeable thin layer on both the front side and the back side so that there is no front and back depending on the application. In the present invention, the sheets and the packaging material can be provided with front and back surfaces according to their use, the surface side can be formed with a water-permeable thin layer portion, and the back side can be formed with a water-impermeable thin layer portion. In the present invention, the water-permeable thin layer portion can be formed of a non-woven fabric produced by a dry method or a wet method having a water-permeable function according to the target water permeability, and the water-impermeable thin layer portion is made of polyethylene. It can be formed of a water-impermeable plastic film made of plastic such as resin or polypropylene resin.

  In the present invention, the absorbent used for sanitary goods such as disposable diapers, milk pads, urine pads, sanitary napkins, sheets, and packaging materials is composed of a water absorbent paper layer portion on the front side and a water absorbent paper layer portion on the back side. A water-absorbing material layer portion is provided between them. In the present invention, the water-absorbing material layer portion can be formed of pulp and heat-sensitive polymer gel that have been crushed and dried to a particle size of 7 mm or less, preferably 5 mm or less. In the present invention, a part of the heat-sensitive polymer gel can be made into a less water-absorbing resin than the heat-sensitive polymer gel. In the present invention, when utilizing disposable diaper waste, milk pad waste, urine pad waste, sanitary napkin waste, etc. Furthermore, a part of the pulp material can be a waste plastic material in an amount smaller than that of the pulp material. In the present invention, the water-absorbing material layer portion can be produced by pulverizing a pulp having a large water absorption function and water retention function to a particle size of 7 mm or less, preferably 5 mm or less, and mixing with a thermosensitive polymer gel. Since the plastic material having a particle size of 7 mm or less, preferably 5 mm or less has a water retention function, it can be used for the water-absorbing material layer portion of the absorber. In this case, the heat-sensitive polymer gel can be contained in the water-absorbing material layer portion of the absorbent body as it is or as a mixture with a water-absorbing resin. In the present invention, as described above, the pulp is mixed with the thermosensitive polymer gel, and further, the water absorption function and the water retention function of the absorber are increased by mixing the plastic or the water absorbent resin or the plastic and the water absorbent resin. Can do.

In the present invention, the absorbent body, like the conventional absorbent body, is formed on the floor portion by forming an embossed ridge by pressure molding such as embossing to form a relatively flexible sheet. It is preferable because it can be in close contact and easily absorb water droplets on the floor.
In the present invention, the mixture of the pulp and the thermosensitive polymer gel can be further mixed with a water absorbent resin, or further mixed with a plastic and a water absorbent resin to form a water absorbent material layer portion.
In the present invention, the pulverized product of the waste plastic material can be contained in the water absorbent material layer portion. For example, a waste plastic material pulverized product having a particle size of 7 mm or less, preferably 5 mm or less, which has been separated by pulverizing waste paper diaper, contains a pulp material and a water-absorbing resin. By simply blending gel and water-absorbing resin, it can be easily formed into a sheet by pressure molding. In the present invention, the mixture of the pulp material and the thermosensitive polymer gel separated and recovered by pulverizing the disposable diaper waste material has a moisture content of 10% by weight or less and can be molded into a stable sheet shape. However, the pulp material and / or the waste plastic material can be made into a heat-sensitive polymer gel and a waste plastic material by adding moisture slightly, for example, by containing the water content in an amount of 10% by weight or less, preferably 4 to 2% by weight. The water-absorbent resin is preferred because it becomes easy to adjust and further facilitates molding. The particle size of the pulp material and the waste plastic material is preferably finer. For example, a particle size of 7 mm or less, 5 mm or less, more preferably 3 mm or less is preferable in terms of the feel of the water-absorbing material layer and pressure molding. preferable.
These pulp materials are formed into a pulverized and dried product having a particle size of 5 mm or less, preferably 3 mm or less, more preferably 1 to 3 mm. For this purpose, the collected pulp material is ground or dried. Good.

  In the present invention, the absorbent has a moisture content of 10% by weight or less in order to prevent the growth of bacteria and the like, and to give a dry feel when the absorbent is touched. Although it is preferable, the water content is more preferably 5% by weight or less. Drying of the absorbent body necessary to obtain such a moisture content can be performed by heating the absorbent body in an embossing process.

  In the present invention, pulp includes pulp material and paper dust. Pulp materials include toilet paper waste, tissue paper waste, decorative paper waste, paper napkin waste, dust paper waste, paper cotton waste, paper towel waste, mechanical pulp waste, chemical pulp waste, semi-chemical pulp waste, cotton-like pulp waste, wood Pulp waste material, waste paper pulp waste material, synthetic resin fiber waste material, wood waste, wood waste, wood powder, house dismantling material, pulp-containing material recovered from fluff pulp of new construction waste or sanitary ware waste classification products, or toilet seat sheet waste Waste material for animal excrement disposal, bed sheet waste material, mask waste material, eye mask waste material, seat head cover waste material, pillow cover waste material, paper diaper waste material, sanitary napkin waste material, animal paper diaper waste material, animal sanitary napkin waste material , Milk pad waste, sweat pad waste, incontinence pad waste or animal sheets waste A flop-containing material or a mixture pulp containing material comprises two or more which are those recovered.

  In the present invention, the paper powder is used for toilet paper waste, tissue paper waste, cosmetic paper waste, paper napkin waste, dust paper waste, paper cotton waste, paper towel waste, toilet seat waste, animal waste disposal material waste, bedding Sheet waste, mask waste, eye mask waste, seat head cover waste, pillow cover waste, paper diaper waste, sanitary napkin waste, animal paper diaper waste, sanitary napkin waste, animal sanitary napkin waste, milk pad waste, sweat pad Waste materials, Incontinence pad waste materials, Animal sheet waste materials, Laminated paper waste materials for transporting fresh fish, Laminated paper waste materials for vegetable transport, Laminated paper printing waste, Laminated paper scraps, Buff powder, cardboard waste, newspaper waste, magazine waste, titanium Paper waste materials, punch scraps, sanitary waste classification products fluff pulp, water absorbent fiber waste, water absorbent resin waste, water absorbent wood , Paper powder generated during bookbinding, paper powder generated during non-woven fabric manufacture, paper powder generated during the papermaking process or paper powder generated during hygiene material manufacture, or paper powder recovered from these, or recovered It is a mixture containing two or more paper dusts.

  In the present invention, the pulverized product of the waste plastic material includes a pulverized product of synthetic resin fiber waste pulverized to a particle size of 5 mm or less, a pulverized product of synthetic resin fiber waste, a crushed product of string-like synthetic resin waste, There are pulverized products, pulverized synthetic resin waste, pulverized synthetic rubber waste, pulverized synthetic rubber waste, pulverized synthetic rubber waste, crushed synthetic rubber waste, or crushed laminated paper waste. There is a mixture of two or more waste plastic material grinds. In addition to the pulverized waste plastic material other than these pulverized waste plastic material, waste plastic materials such as diaper waste pulverized material, milk pad waste pulverized material, urine pad waste pulverized material, sanitary napkin waste pulverized material, etc. There are pulverized products, and in addition to these, there are two or more mixtures of pulverized waste plastic materials, and pulverized waste plastic materials or pulverized waste plastic material mixtures of two or more waste materials obtained by classification treatment. There are pulverized waste plastic materials containing classified plastic waste plastic materials rich in plastic materials.

  In the present invention, the pulverized waste plastic material is a waste plastic material for the pulverized waste plastic material or a mixture thereof, a pulverized waste plastic material or a mixture thereof, or a pulverized waste plastic material and a mixture of two or more thereof. It means abundant waste plastic material pulverized product. The pulverized waste plastic material also includes a pulverized plastic material. When cutting waste or dust collection loss generated during the production of sanitary materials is used as a waste plastic material pulverized product, it contains a small amount of water-absorbent resin or highly water-absorbent resin and pulp material. In forming a sheet and a packaging material using the above, water absorbability and water retention and moldability at the time of pressure molding are improved, which is preferable. In the present invention, when the pulp material mixed in the waste plastic material pulverized product contains a bactericidal agent and a deodorizing agent, the formed absorbent body, the sheet and the packaging material using the absorbent body have a bactericidal action and Since it has a deodorizing action, it is preferable.

  In the present invention, a pulp material having a particle size of 7 mm or less, preferably 5 mm or less, and a waste plastic material pulverized product pulverized to a particle size of 7 mm or less, preferably 5 mm or less in a smaller amount than the pulverized pulp material, In the case of an absorbent containing a heat-sensitive polymer gel or a heat-sensitive polymer gel and a water-absorbing material layer, the inclusion of a pulverized waste plastic material increases water absorption and water retention and also increases elasticity. Can be made. In the present invention, when a surfactant is attached to the mixture of the heat-sensitive polymer gel, the pulp material and the waste plastic material pulverized product, the pulp material and waste plastic material pulverized product mixture can increase the water absorption rate, Can be increased, which is preferable. When a surfactant is attached to the waste plastic material particles pulverized to a particle size of 7 mm or less, preferably 5 mm or less, the waste plastic material pulverized product is difficult to get wet with water, that is, even if it has water repellency, It becomes easy to get wet and increases water absorption and water retention. In the present invention, a heat-sensitive material in a mixture of a pulp material pulverized product having a particle size of 7 mm or less, preferably 5 mm or less, a heat-sensitive polymer gel, a plastic waste material pulverized to a particle size of 7 mm or less, preferably 5 mm or less, and a water absorbent resin. The mixing ratio of the polymer gel is, for example, 30% by weight or less. However, the higher the mixing ratio of the thermosensitive polymer gel, the better the water absorption and water retention of the absorber. Therefore, the higher the content within the range, the better the water absorption and water retention.

In the present invention, when a waste plastic material pulverized product is contained in the water absorbent material layer portion of the absorber, for example, by adhering a surfactant on the side of the water absorbent material layer portion containing the waste plastic material, The water absorption rate and water permeation rate of the conductive material layer can be increased, and the remaining time of water remaining on the surface of the absorber without being absorbed by the absorber can be remarkably shortened. In the present invention, the amount of the surfactant attached to the absorber is 0.05 g or less, preferably 0.009 g or less, per 1 g of the absorber. If the amount of the surfactant adhering to the absorbent body is more than 0.05 g, the cost increases and the speed of passing through the water-absorbing material layer portion increases, so that the water is sufficient for the water-absorbing material layer portion. Passes through the water-absorbing material layer portion without being absorbed and accumulates on the water-impermeable layer portion, and then absorbs in the opposite direction from the pool on the water-impermeable layer portion toward the water-absorbing material layer portion. It becomes. When using a surfactant, it is necessary to reduce the passage speed of the water-absorbing material layer portion so that water is absorbed by the water-absorbing material layer portion and moved toward the water-impermeable layer portion. The adhesion amount of the surfactant to the body is preferably 0.009 g or less.
Therefore, in the present invention, when a sheet or a packaging material is produced using an absorbent body to which a surfactant is attached, water does not remain on the water-permeable thin layer portion disposed on the surface side of the absorbent body, for example, a nonwoven fabric. This is preferable because the nonwoven fabric can be given a relatively dry feel.

  In the present invention, in order to increase the water absorption speed of the absorbent body, the front surface side and the back surface side of the absorbent body are formed by the water absorbent paper layer portion. This water-absorbing paper layer portion is for increasing the water absorption speed, and absorbent paper, thin paper, rayon paper, sanitary paper or a combination of two or more of these is used. This paper includes wet nonwoven fabrics or dry nonwoven fabrics. Examples of such paper include toilet paper, sanitary paper or tissue paper such as paper cotton, rayon paper, one or more thin papers such as wet nonwoven fabric or dry nonwoven fabric or composite paper, or one or more absorbent papers, or a combination thereof. can do. For example, the water-absorbing paper layer portion can be formed of one sheet or a plurality of thin sheets. When the water-absorbent paper layer portion is formed from an absorbent paper formed by a plurality of thin papers, the thin paper sheets are formed by combining or bonding thin papers one by one, or by combining a plurality of preliminarily integrated sheets. It can be formed from an absorbent paper made of thin paper. When the number of thin paper sheets is increased, the water absorption speed of the absorber can be increased. That is, the larger the basis weight of the absorbent paper, the better the water absorption, which is preferable. However, since the use of an absorbent paper having a large basis weight is expensive, it is preferable to select the absorbent paper within a reasonable cost range and an appropriate water absorption range. The basis weight can be 18 g / square meter to 10 g / square meter. In this case, the thin paper can be colored with a coloring material such as a color former that develops color when wet with water or a color former that reacts with water and develops color. As the absorbent paper, composite paper having absorbency obtained by laminating thin paper and chemical fiber paper can be used.

  In the present invention, the use of the waste plastic material is to maintain elasticity while increasing the water retention of the absorber, but the waste plastic material is used instead of a part of the pulp material. Therefore, in the cocoon, although the water retention of the absorbent body is increased, the water absorption is lowered. Added to the mixture of ingredients. Therefore, in the present invention, the water-absorbing material layer portion and the first and second water-absorbing material layer portions of the absorbent body are a thermosensitive polymer gel, a pulp material having a particle size of 7 mm or less, preferably 5 mm or less, A plastic waste material pulverized to a particle size of 7 mm or less, preferably 5 mm or less, and a smaller amount of a heat-sensitive polymer gel or a heat-sensitive polymer gel and a water-absorbing resin than the pulverized plastic material. be able to. The water-absorbing material layer portion is overlapped with the first and second water-absorbing paper layer portions or bonded together, and can be formed into an absorbent body by pressure molding. An absorber having an embossed wrinkle can be formed on the surface. Further, the first and second water-absorbing material layer portions are overlapped with the first, second and third paper layer portions or bonded together, and are pressure-molded to form the absorbent body. It is possible to form an absorbent body having embossed wrinkles on the surface during pressure molding.

  When the absorbent body has a function of removing odors, etc., the water-absorbing material layer portion of any composition has a poorly crushed titanium paper or crushed titanium paper waste material, or pulverized defective alumina paper. Or pulverized waste of alumina paper, pulverized defective potassium titanate paper or pulverized potassium titanate paper, pulverized defective alumina / silica paper or pulverized alumina / silica paper waste or pulverized defective carbon fiber paper or carbon fiber paper A pulverized product of defective inorganic fiber paper having an odor removing function such as a pulverized waste material, a pulverized product of inorganic fiber paper waste material, or a mixture of two or more of the pulverized products can be blended.

  Furthermore, in the present invention, an inorganic adsorbent such as activated carbon, talc, zeolite powder or bentonite can be blended in the water-absorbing material layer portion in order to give the absorber a function of removing odors and the like. In addition to these adsorbents, flavones based on flavones and isoflavones based on isoflavones are used as deodorizers or deodorizers to be blended into the absorber and to have a function of removing odors and the like. Flavonols based on flavonols, flavanones based on flavanones, flavanols based on flavanols, flavan-3,4-diols, flavan-3-ols, anthocyanidins based on anthocyanidins, basic aurones Aurones, chalcones based on chalcones, flavonoids including dihydrochalcones based on dihydrochalcones, and the like, and besides these, Pancil BA-210-1 manufactured by Release Scientific Industries Co., Ltd. (Product name) or Tokai Kosan Co., Ltd.'s Smernak (product name), etc. A.

  In the present invention, each of the first and second water-absorbing paper layer portions and the first, second and third water-absorbing paper layer portions can be formed of at least one thin paper sheet excellent in water absorption. However, in order to increase water absorption, a plurality of thin papers can be formed one by one or bonded together, or can be formed from a plurality of thin papers that are integrated together in advance. The thin paper can be colored with a color former that develops color in response to water. In order to maintain the appearance of the first and second water absorbent paper layer portions, it is preferable to use an absorbent paper that is less likely to be damaged than the third water absorbent paper layer portion.

  In the present invention, when the absorbent body of the present invention is used as a sheet or a packaging material, the surface forming member is a non-woven fabric produced by a dry method or a wet method and other water-permeable materials depending on the purpose. It can be a thin layer member. The water-permeable thin layer member can be a non-woven fabric produced by a wet method or a dry method having a water permeability function according to the degree of water permeation. In the case of a water-permeable thin layer portion, if the surface facing outward, i.e., the outer surface or the surface, is easily wetted with water, and the surface facing inward, i.e., the inner surface, or the back, is not easily wetted with water, the water once absorbed inside , It can prevent oozing out. The member that forms the back surface is provided in contact with the back surface of the second water-absorbent paper layer portion of the absorber, and can be formed of a water-impermeable thin layer member such as a water-impermeable plastic film. . Such a water-impermeable thin layer member can be formed of a water-impermeable plastic film made of a plastic material such as polyethylene resin or polypropylene resin. However, in the present invention, in the case of a packaging material, the thin layer portion serving as the back surface can be formed of a water-permeable thin layer member according to the material to be packaged. In this way, when the back surface is formed of a water-permeable thin layer part, a plastic film having a hole with a size corresponding to the degree of water permeability or a wet method or a dry type having a water permeability function according to the degree of water permeability It can be made into the nonwoven fabric manufactured by the method.

  In this way, in the case of sheets and packaging materials, when the absorbent body front and back members are made of a water permeable material, for example, by placing on the floor wet with rain, water that wets the floor automatically Therefore, it is not necessary to wipe off the floor surface, and the labor of wiping the floor surface can be saved. Thus, the sheet having a water-permeable thin layer portion can be used as a rug for a vehicle, an umbrella rug, a toilet rug, a toilet rug, etc., and can prevent each floor from getting wet. . Further, when the water-permeable thin layer portion is formed of a material having a plurality of capillary tubular fine holes, for example, when used as a rug and a packaging material such as an underlay or an insole used for packaging fruits and vegetables or fresh fish In addition, the moisture of the packaging material such as fruits and vegetables and fresh fish to be packaged moves through the holes of the desired dimensions of the water-permeable thin layer portion, and the amount of moisture of the packaging material can be adjusted appropriately.

The water-absorbing resin used in the present invention includes, in addition to a highly water-absorbing resin as a product, a water-absorbing resin that is inferior in water-absorbing property as compared with defective high-absorbing resins and high water-absorbing resins. Therefore, in the present invention, the water-absorbent resin is not only the highly water-absorbent resin, but also the pulverized waste paper diaper, the milk pad waste material, and the urine pad that are pulverized to 5 mm or less, preferably 3 mm or less. Includes waste material ground material, sanitary napkin waste material ground material, absorbent fiber or laminated paper waste material ground material or a mixture of two or more of the above ground materials, and classification from the waste material ground material and the mixture of waste material ground materials by classification treatment. Separation products rich in a superabsorbent resin.
Accordingly, in the present invention, the water absorbent resin includes, for example, paper diaper waste including defective paper diapers, milk pad waste including defective milk pads, pulverized urine pad waste including defective urine pads, or defective sanitary napkins. The sanitary napkin waste material pulverized product or a mixture of two or more of the waste material pulverized product is classified as a separated product rich in a highly water-absorbent resin, or a so-called regenerated water-absorbent resin There is a mixture of the above. Highly water-absorbent fiber waste material including defective superabsorbent fibers Milled waste or dust collection loss generated during the production of these sanitary materials is crushed and used as a water-absorbent resin. Since the content of the water-soluble resin is small, it is necessary to add and mix a water-absorbing resin or a highly water-absorbing resin when using the pulverized material of the cutting waste or dust collection loss.
In the present invention, the water-absorbent resin is generally present together with the pulp material in the sanitary material. It is preferable to use a water-absorbent resin in the waste material of sanitary materials containing pulp waste material having bactericidal and deodorizing properties, since a substance that exerts a bactericidal action and a deodorizing action exists, so that sterilization and deodorization are performed.

  In the present invention, in order to increase the texture and elasticity of the absorbent body and the sheets and packaging materials using the absorbent body, the water-absorbent material layer portion is made of a pulverized pulp material having a particle size of 5 mm or less and a heat-sensitive polymer gel. A mixture of 5 μm or less, a pulp material pulverized product having a particle size of 5 mm or less, a heat-sensitive polymer gel and a mixture comprising a small amount of a water-absorbing resin. A mixture comprising a pulverized material and a heat-sensitive polymer gel, a pulp material pulverized product having a particle size of 5 mm or less, a waste plastic material pulverized product, a mixture comprising a heat-sensitive polymer gel and a surfactant, or a pulp material pulverized product having a particle size of 5 mm or less, Waste plastic material pulverized product, heat-sensitive polymer gel, a mixture composed of a small amount of water-absorbent resin and a mixture composed of a surfactant. It can be formed.

  The amount of the thermosensitive polymer gel in the water-absorbing material layer is preferably 30 weight percent or less. When a part of the heat-sensitive polymer gel is replaced with a water-absorbent resin, the price of the water-absorbent resin is relatively high. Therefore, it is more preferable that the content of the water-absorbent resin is, for example, 10% by weight or less. It is preferably 5% by weight or less. In the present invention, even if the content of the water-absorbent resin in the water-absorbent material layer portion is 5 weight percent or less, for example, the pulverized pulp material having a particle size of 5 mm or less has water retention and water absorption, and further 5 mm or less. Even in the plastic waste material pulverized product pulverized to a particle size, it has considerable water retention, so that the water retention and water absorption can be compensated for by the reduced content of the water absorbent resin.

In the present invention, a surfactant can be attached or added to the absorber or the water-absorbing material layer in order to increase the water passage rate and absorption rate of the absorber. Thus, in this invention, the water | moisture content collected on an absorber can be rapidly absorbed by making a surfactant adhere to an absorber or a water absorbing material layer part.
As the surfactant, anionic surfactants such as sodium dodecylbenzenesulfonate are preferable, but in addition to these, cationic surfactants such as lauryltrimethylammonium chloride, nonionic surfactants such as octylphenyl ether, etc. is there.

  In the present invention, the nonwoven fabric layer part is formed hydrophilic on the front side, and the back side is formed hydrophobic, that is, oleophilic, and when forming a sheet, the nonwoven fabric layer part on the side having hydrophobicity is absorbed. When placed in contact with the surface of the body, the non-wetting side of the non-woven fabric layer portion on the surface of the sheet is the surface, and the non-wetting side is the back side. Is preferable because water can be prevented from seeping out from the absorbent body due to water repellency on the back surface of the nonwoven fabric layer portion. In the present invention, in order to increase the water absorption capacity of the absorbent body and the sheet, a water absorbent paper layer portion formed of thin paper is provided on the front surface side and the back surface side of the absorbent body. In order to increase the water retention capacity of the absorbent body, a water-absorbing material layer comprising a thermal polymer gel, a paper waste material pulverized product, a plastic waste material pulverized product and a water-absorbing resin between the first and second water-absorbing paper layer portions. The first and second water-absorbent paper layer portions and the water-absorbent material layer portion are bonded together to form an absorbent body.

  In the present invention, the first water-absorbing paper layer portion, the second water-absorbing paper layer portion, and the pulp material pulverized material having a particle size of 5 mm or less and the heat-sensitive material provided between the front-side and back-side paper layer portions. The water-absorbing material layer portion including the polymer gel or the heat-sensitive polymer gel and the water-absorbing resin, and the waste plastic material pulverized product can be embossed and pressure-molded into a relatively flexible plate-like body. Such a relatively flexible plate-like body is preferable because it adheres well to the floor portion and easily absorbs water droplets on the floor.

In the present invention, the sheet has a water-permeable thin layer portion that forms a surface, and the water-permeable thin layer portion is made of, for example, a nonwoven fabric made of plastic fibers such as polypropylene, polyethylene, nylon, or vinylon, or polyethylene, polypropylene, It can be formed of a porous film made of a plastic material such as vinyl chloride resin, the back side is a water-impermeable plastic film layer part, and the plastic film layer part is made of polyethylene, polypropylene as in the case of the absorber It is possible to form the film with a water-impermeable thin layer such as a plastic film. In the present invention, on the back side of the water-permeable thin layer portion, a water-absorbing paper layer portion can be provided in contact with the back side surface. In the present invention, it is preferable to use a water-permeable thin layer portion to which bactericidal and deodorizing properties are imparted, since the odor generated by sweat or urine that adheres during use is reduced. In the present invention, when the water-impermeable membrane and the water-permeable membrane layer portion of the biodegradable plastic material and the water-absorbent material layer portion containing the biodegradable plastic material are used, the obtained absorbent body, sheet and packaging material are soiled. It is preferable because it can be buried and discarded. In the packaging material of this invention, when making upper and lower surfaces water-permeable, both upper and lower surfaces can be made into a water-permeable thin layer part, such as a nonwoven fabric.
In the present invention, for example, 25 ml of water is injected into a circle having a diameter of 2 cm within 10 seconds from, for example, a washing tub nozzle, and the total amount of the water-permeable thin layer portion is 20 seconds. The permeation time here, that is, the water permeability, is more preferable as it is further shortened.

In the present invention, it is preferable that the water-absorbent paper layer portion is formed of thin paper such as absorbent paper, absorbent paper, or crepe paper, because good water absorbability can be secured. In the present invention, composite paper produced by dispersing pulp and chemical fibers in a liquid and making paper can be used as the absorbent paper. For example, a composite paper having water absorption or water permeability obtained by bonding a chemical fiber paper such as a chemical fiber paper made of polypropylene to a thin paper can be used.
In the present invention, the absorber can be provided with the surface side in contact with the back surface of the water-permeable thin layer portion, and the back surface side can be used as the ridge to be the bottom of the absorber. However, in this case, the bottom surface can be reinforced by forming a thin layer made of impermeable plastic in contact with the back side. In this case, the absorbent body is surrounded by the impermeable plastic thin layer portion provided in contact with the back surface side and the water permeable thin layer portion provided in contact with the surface side of the absorber. Can be formed.

In the sheet or packaging material, when it is necessary to absorb liquid such as water from the bottom surface, the bottom portion can be formed as a water-permeable thin layer portion in order to impart desired water permeability to the bottom surface.
In the present invention, the absorbent body has a water absorbent paper layer portion formed of thin paper such as absorbent paper on the front side and the back side. For example, a thin paper such as an absorbent paper having a basis weight of 10 to 25 grams / square meter can be used. For example, a tissue paper having a basis weight of 12.5 g / square meter can be used. Can be placed one by one. In the present invention, when the absorbent body is used as a sheet used for a human or animal sheet or a human or animal paper diaper, for example, the absorbent sheet on the surface is two sheets, and is positioned on the outermost surface side. The absorbent paper to be inspected can be made into an absorbent paper for inspection by attaching a coloring material for inspection. Further, in this case, it is preferable that the absorbent body is subjected to treatment such as disinfection so as to be hygienic. In addition, it is preferable to use a sterilizing thin paper as the thin paper because the odor generated by sweat or urine adhering to the absorbent, the sheet, or the packaging material is reduced in the use of the absorbent body, the sheet, and the packaging material.

In the present invention, the term water-absorbing resin means a water-absorbing resin having a low water-absorbing ability as compared with a high-grade water-based resin, in addition to a high-grade water-based resin.
The water-absorbing resin used in the present invention is preferably a highly water-absorbing resin that can retain its shape even when artificial urine absorbs about 30 to 100 times its own weight of water. Examples of such highly water-absorbent resins include saponified copolymers of vinyl esters and ethylenically unsaturated carboxylic acids or derivatives thereof, graft polymers of starch and acrylic acid, crosslinked products of polyacrylic acid, and vinyl alcohol. And a copolymer of acrylic acid, a partial hydrolyzate of polyacrylonitrile, a crosslinked product of carboxymethyl cellulose, a crosslinked product of polyethylene glycol, a chitosan salt or a pullulan gel. These are used alone or in admixture of two or more in the water-absorbing material powder. When used for waste oil treatment or the like, a water-absorbing resin having a high oil-absorbing property is used.

In the present invention, it is preferable to use a so-called highly water-absorbent resin having high water absorbability because the amount of the water-absorbent resin contained in the waste material can be reduced.
In the present invention, when a classified product rich in water-absorbing resin of waste paper diaper waste is used, the amount of the superabsorbent resin contained in the classified product reaches about 14 to 28% by weight, so that high water absorption is maintained. Is preferable.
For example, a recycled superabsorbent resin-containing material recovered from waste paper diaper is artificial urine and has a water absorption capacity of 10 to 30 g / g, which is poor in water absorption performance. Performance is enough. In this case, the particle size of the recycled superabsorbent resin used is preferably 50 to 500 μm.

In the present invention, the absorber is provided between, for example, a first water absorbent paper layer portion, a second water absorbent paper layer portion, and the first and second water absorbent paper layer portions, and is 7 mm or less, Preferably, the pulp material and the heat-sensitive polymer gel having a particle size of 5 mm or less, or a water-absorbing material layer portion formed by containing a smaller amount of water-absorbing resin than the heat-sensitive polymer gel, or a waste plastic material having a particle size of 5 mm or less The first water-absorbing paper layer portion, the water-absorbing material layer portion and the second water-absorbing paper layer portion are integrally formed so that the absorbent body can be made relatively inexpensive. Can be manufactured and can absorb water adhering to the absorber in a relatively short time, and placed on the floor, the absorber absorbs water drops falling on the floor, but in any case it absorbs After that, the surface of the absorber can be kept relatively dry, Get wet can be prevented.
Thus, for example, bedding, paper diapers, dairy pads, urine pads, sanitary napkins, and open-air event floors and playground grounds are prevented from being wet by rain, kitchen floors, toilet floors, refrigerators It can be spread on floors and toilet floors to absorb water droplets on the floor and prevent wetting of the floor. For example, it can be used for an auxiliary mat for a bed to prevent the bed of a patient with nocturnal enuresis from getting wet. It can be used as a water-absorbing mat for wiping off the condensation on the ceiling, wall or window of the building, thereby removing the condensation on the windows. Moreover, when it is used as a water-absorbing mat for preventing the evaporation of water for horticulture, it is preliminarily dampened and used on a potted plant or the like, so that evaporation of water from the potted plant due to water retention can be prevented. The water-absorbing mat can be laid under, for example, a fishery product, or the water-absorbing mat can be formed into a bag shape to wrap the fishery product, and the fishery product can be transported without contact with the defrosted water.

  Moreover, in this invention, an absorber is provided between the 1st water absorbing paper layer part, the 2nd water absorbing paper layer part, and said 1st and 2nd water absorbing paper layer part, for example, 5 mm or less Heat-sensitive polymer gel having a particle size of 5 mm or less and a small amount of water-absorbing resin than the heat-sensitive polymer gel, or a heat-sensitive polymer gel having an average particle size of 5 mm or less, and a smaller amount than the heat-sensitive polymer gel. A waste absorbent material pulverized product having a particle size of 5 mm or less, and a water absorbent material layer formed by containing a smaller amount of water absorbent resin than the pulverized waste composite material, and the first water absorbent paper Since the layer portion, the water absorbent material layer portion and the second water absorbent paper layer portion are combined and integrally formed, an elastic absorbent body can be obtained without using a pulp material. Can be used to get elastic sheetsTherefore, the present invention can absorb water drops falling on the floor while maintaining a predetermined shape and elasticity, and can eliminate, for example, wetting of a water field. Therefore, when the sheet using the absorbent body of the present invention is used, for example, in the receiving part of an umbrella stand, water droplets flowing down from the wet umbrella are absorbed, so that water does not accumulate in the umbrella stand.

In the present invention, the packaging material comprises a heat-sensitive polymer gel having a particle size of 5 mm or less disposed between the first water-absorbent paper layer portion and the second water-absorbent paper layer portion, and the heat-sensitive polymer gel. In the water-absorbing material layer containing a small amount of superabsorbent resin, pulverized titanium paper waste, pulverized alumina paper, pulverized potassium titanate paper, pulverized alumina / silica paper waste, or carbon fiber Since the pulverized product of inorganic fiber paper waste material such as paper waste material or a mixture of two or more of the inorganic fiber paper waste material pulverized product is used as a part of the odor removing material, the odor of the pulverized inorganic fiber paper waste material in the absorber With the removal function, the sheet of the present invention can remove the odor generated in the sheet during use, and can reduce the odor of the sheet after use. Further, when the packaging material of the present invention is used for packaging fruits and vegetables, the freshness of the fruits and vegetables can be maintained by removing maturation hormone ethylene generated from the fruits and vegetables.
In the present invention, the water permeability means the property of water permeation. For example, when a fixed amount (25 ml) of water or pseudo urine is injected into a 2 cm circle within 20 seconds or less, the total amount of water or pseudo urine is injected. It is calculated | required by the time (second) required for permeation | transmission, and the one where the permeation | transmission time is short is excellent in water permeability compared with the long one.

Examples of embodiments of the present invention will be described below, but the present invention is not limited to the following descriptions and examples.
FIG. 1 is a schematic partial cross-sectional view showing an outline of a cross-sectional structure of an absorbent body having a single water-absorbing material layer according to an embodiment of the present invention. FIG. 2 is a cross-sectional view showing a schematic cross-sectional structure in the width direction of the absorbent body of one embodiment of the present invention having the cross-sectional structure of the absorbent body of the embodiment shown in FIG. FIG. 3 has a cross-sectional structure of the absorber of the embodiment shown in FIG. 1, but is different from the absorber of the embodiment shown in FIG. 2 in the width direction of the absorber of another embodiment of the present invention. It is sectional drawing which shows these sectional structures. FIG. 4 shows a disposable flat-type disposable diaper for humans or animals, a sheet for humans or animals, an absorbent mat or a package according to an embodiment of the present invention using the absorbent body of the embodiment shown in FIG. It is sectional drawing which shows the cross-sectional structure of the width direction about the sheet | seat for materials. FIG. 5 shows a disposable flat-type disposable diaper for humans or animals, sheets for humans or animals, or an absorbent mat according to another embodiment of the present invention using the absorbent body of the embodiment shown in FIG. Or it is sectional drawing which shows the general | schematic cross-section of the width direction about the sheet | seat for packaging materials. FIG. 6 shows a disposable flat-type disposable diaper for human or animal use of the absorbent body of the embodiment of the present invention shown in FIG. It is a general | schematic process drawing which shows the process of manufacturing the sheet | seat for mat | matte or a packaging material. FIG. 7 is a process diagram showing an outline of detailed steps of the process for producing the animal sheet shown in FIG. FIG. 8 is a cross-sectional view showing a schematic cross-sectional structure in the width direction of an absorbent body according to another embodiment of the present invention in which the arrangement of the absorbent body of FIG. FIG. 9 shows the arrangement of the absorbent and the front-side absorbent paper used in the disposable flat-type paper diaper for human or animal of FIG. 4, a sheet for human or animal, an absorbent mat, or a sheet for packaging material. For human or animal disposable flat paper diapers, human or animal sheets, absorbent mats or sheets for packaging materials comprising an absorbent body of another embodiment of the present invention with different It is sectional drawing which shows schematic sectional structure. FIG. 10 shows an absorbent used for the disposable flat-type disposable diaper for humans or animals, sheets for humans or animals, absorbent mats or sheets for packaging materials in FIGS. 4, 5 and 9; Another embodiment of the present invention, which is different in the arrangement structure of the water-impermeable plastic film and the water-permeable nonwoven fabric, is a disposable flat-type disposable diaper for humans or animals, a sheet for humans or animals, an absorbent mat, It is sectional drawing which shows the general | schematic cross-section of the width direction about the sheet | seat for packaging materials. FIG. 11 is a cross-sectional view showing a schematic cross-sectional structure in the width direction of an absorbent body according to another embodiment of the present invention in which the water-absorbing material layer portion is formed in two layers. 1 to 11, the same reference numerals are used for corresponding portions.

  FIG. 1 is a conceptual diagram showing a schematic structure of an absorber according to an embodiment of the present invention. In the embodiment of the present invention shown in FIG. 1, the absorbent body 1 has a water-absorbing material layer portion 3 positioned on the back-side absorbent paper 2, and the surface-side absorbent paper 4 on the water-absorbing material layer portion 3. Are integrally formed. The absorbent body 1 in this example is formed by forming a water absorbent material layer portion 3 on the back side absorbent paper 2 and disposing the surface side absorbent paper 4 on the formed water absorbent material layer portion 3. The whole is formed by pressure molding.

  In the embodiment shown in FIG. 2, the back side absorbent paper 2 is formed such that its width direction is larger than the length of the front side absorbent paper 4 in the width direction. This is because, in the absorbent body of this example, a water absorbent material layer portion is formed on the back side absorbent paper 2, and both end portions 5 in the width direction of the back side absorbent paper are formed on the water absorbent material layer portion 3. The front side absorbent paper is placed on both ends 5 in the width direction of the stacked back side absorbent paper 2 and the both ends 6 are placed on top of each other, and bonded by hot melt, The end 6 of the surface-side absorbent paper is adhered to the both ends 5 of the absorbent paper 2 to stabilize the water-absorbing material layer 3 and the surface-side absorbent paper 4 placed on the back-side absorbent paper 2. be able to.

  In the embodiment shown in FIG. 3, the front side absorbent paper 4 and the rear side absorbent paper 2 are arranged in the width direction so that the end portions of the front side absorbent paper 4 overlap each other in the width direction. Can be formed with substantially equal lengths. In this way, when the water-absorbing material layer portion 3 is placed on the back-side absorbent paper 2 and the surface-side absorbent paper is placed thereon, the both ends 7 in the width direction of the back-side absorbent paper are The end 7 of the back-side absorbent paper can be bonded to the end 8 of the front-side absorbent paper so as to overlap the both end portions 8 of the side absorbent paper 4. In this example, this makes it possible to stabilize the water-absorbing material layer portion 3 placed on the back-side absorbent paper 2, and at the time of pressure molding, the back-side absorbent paper 2 and the front-side absorbent paper The end portions in the width direction of 4 can be bonded to each other by hot melt bonding.

The examples shown in FIGS. 4 and 5 are examples of sheets, sheets or mats used in flat type disposable diapers, packaging materials, animal sheets or water-absorbing mats.
As shown in FIG. 2, the absorbent body 1 used in the disposable diaper, sheet, sheet or mat in the embodiment shown in FIG. 4 is provided with a water absorbent material layer portion 3 on the back side absorbent paper 2 and its water absorption. An end portion 5 of the back-side absorbent paper 2 is folded on the conductive material layer portion 3 and the front-side absorbent paper 4 is placed thereon so as to be integrally formed under pressure. In the sheet of this example, the nonwoven fabric 12 is disposed on the front surface side absorbent paper 4, the plastic film 11 is disposed under the lower surface side absorbent paper 2 of the absorbent body 1, and the end portion 14 of the nonwoven fabric 12 and the plastic film are disposed. 11 end portions 13 are bonded by a hot melt bonding method.

  The absorbent body 1 used in the flat-type paper diaper, sheet, sheet or mat in the embodiment shown in FIG. 5 is provided with a water-absorbing material layer portion 3 on the back-side absorbent paper 2 as shown in FIG. The front side absorbent paper 4 is disposed thereon, and the end 8 of the front side absorbent paper 4 and the end 7 of the back side absorbent paper 2 are overlapped. In the sheet of this example, a non-woven fabric 12 is disposed on the end portion 8 of the surface-side absorbent paper 4 and the surface-side absorbent paper 4 of the absorbent body 1, and the plastic film 11 is disposed under the lower surface side absorbent paper 2 of the absorbent body 1. The end 14 of the nonwoven fabric 12 and the end 13 of the plastic film 11 are bonded by a hot melt bonding method.

FIG. 6 shows an embodiment of a process for producing a flat type disposable diaper, an animal sheet, a packaging material or a water-absorbent mat shown in FIG. 4 or 5.
The pulp is collected in the pulp receiving unit 15. The collected pulp is supplied to the pulverizing unit 17 from the conveyance path 16 connected to the pulp receiving unit 15. The pulp supplied to the pulverizing unit 17 is first pulverized to a particle size of 5 mm or less in the pulverizing unit 17 to form fluff pulp. The luff pulp having a particle size of 5 mm or less is collected in the stock bottle 19 from the pulverization unit 17 and supplied to the raw fiber stacking unit 21 from the fluff pulp supply path 20 connected to the stock bottle 19. The fluff pulp supplied to the raw material stacking section 21 is supplied from the fluff pulp supply path 22 to the fluff pulp supply section 23. A heat-sensitive polymer gel supply unit 24 is connected to the fluff pulp supply unit 23 via a heat-sensitive polymer gel supply path 25 so that the heat-sensitive polymer gel can be supplied. The water absorbent resin supply unit 26 is formed so as to be blended into a mixture of fluff pulp and a thermosensitive polymer gel via the water absorbent resin supply path 27.

In this example, a lower mount guide path 29 connected to the lower mount supply section 28 passes through the lower portion of the fluff pulp supply section 23, and the lower mount 2 is moved to the lower section of the fluff pulp supply section 23 by the lower mount guide path 29. Guided. A water-absorbing mixture formed of fluff pulp, a thermosensitive polymer gel, and a water-absorbing resin is placed on the lower mount 2 guided to the lower part of the fluff pulp supply unit 23 as a material for forming the water-absorbing material layer. Placed. The lower mount 2 on which the water absorbent mixture formed by mixing the fluff pulp, the thermosensitive polymer gel, and the water absorbent resin is moved along the lower mount guide path 29, and both ends 5 of the lower mount are It is sent to the lower mount folding part 30 which is folded on the water-absorbing mixture. Following the lower mount folding unit 30, an upper mount guide path 32 connected to the upper mount supply unit 31 is connected, and the upper mount 4 is placed on the water absorbent mixture in which both ends of the lower mount 2 are folded. , Supplied from the upper mount guide path 32. The lower mount 2 on which the pulp material, the heat-sensitive polymer gel and the water-absorbent resin are mixed and the upper mount 4 are placed are guided by the lower mount guide path 29 and sent to the embossing section 33. Thus, in the embossing process of the embossing portion 33, the upper mount 4, the water absorbent material layer portion 3 and the lower mount 2 are pressure-bonded to form an emboss and formed into an integral absorbent laminate.
In the case of an absorbent body in which both ends 7 and 8 of the upper mount 4 and the lower mount 2 are overlapped, the upper mount 4 and the lower mount 2 are formed to have substantially equal dimensions, and both ends 7 and 8 of the upper mount 4 and the lower mount 2 are formed. Are overlapped and bonded to form a single body (see FIG. 3).

The absorbent laminate formed by the embossing section 33 is conveyed to the absorbent cut section 35 by the laminate guide path 34. In the absorber cut part 35, the absorber laminated body integrally formed by the emboss formation part 33 is cut | judged by the predetermined dimension width | variety. The absorbent laminate cut to a predetermined width is conveyed by the laminate guide path 34 and sent to the hot melt adhesive portion 36.
In this example, the hot melt bonding portion 36 is connected to the back sheet supply path 38 connected to the back sheet supply section 37 at the lower portion thereof, and connected to the nonwoven fabric supply path 40 connected to the nonwoven fabric supply portion 39 to the upper portion thereof. The absorber laminate on which the upper mount 4 is placed and sent to the hot melt adhesive portion 36 has a polyethylene film back sheet 11 disposed under the lower mount 2, and the upper mount 4 is placed on the upper mount 4. The non-woven fabric 12 made of polypropylene is arranged and sent to the hot melt adhesive portion 36 for adhesion. The sheet laminate formed by bonding is carried out from the hot melt adhesive portion 36 to the product cut portion 42 through a sheet laminate carry-out path 41 connecting the hot melt adhesive portion 36 and the product cut portion 42. In this example, the hot melt adhesive is applied to both ends of the nonwoven fabric 12 and other bonding locations such as the central portion.

  The sheet laminate is cut into a predetermined length in the product cut portion 42 to form a sheet 10 as a product. The sheet 10 is sent to the product folding unit 44 through a sheet conveyance path 43 connected to the product folding unit 44 from the product cutting unit 42. Next, the folded sheets are sent from the product folding unit 44 to the counting / inspecting unit 45 through the product conveyance path 46, and counting and standard inspection are performed. The sheets that have been counted by the counting inspection unit 45 and passed the standard are sent to the packaging unit 47 through the conveyance path 48 connected to the packaging unit 47 from the counting / inspection unit 45 and packaged.

  In the embodiment shown in FIG. 7, the sheet 10 to be manufactured is, for example, a paper diaper having an outer dimension of 300 mm in width and 720 mm in length. ), And its components were 50 g of fluff pulp having a particle size of 5 mm or less and 5 g of thermosensitive polymer gel. Each of the upper and lower absorbent papers has a basis weight of 16 g / square meter, the upper side absorbent paper has a width of 290 mm and a length of 670 mm, and the lower side absorbent paper has a width of 340 mm and a long length. Was 670 mm. Further, the basis weight of the nonwoven fabric forming the upper surface of the absorbent body is 18 g / square meter, the size is 300 mm in width, the length is 720 mm, the weight is 3.9 g, and the polyethylene that forms the bottom surface of the absorbent body The film had a thickness of 20 μm, a surface size of 365 mm in width, a length of 720 mm, and a weight of 4.8.

  The lower base paper, that is, the roll 28 of the back side absorbent paper 2 is drawn out by the absorbent paper feed roller 49 to supply a water absorbent mixture containing the pulp material forming the water absorbent material layer portion 3 and the thermosensitive polymer gel. Sent to the unit 51. The mixture supplying unit 51 is provided with a fiber pile 21, and the fluff pulp is supplied from the fiber pile 21, and the fluff pulp supply unit 23 supplies the heat-sensitive polymer gel supply device 24 to the heat-sensitive polymer gel supply path. 25 is mixed with the heat-sensitive polymer gel supplied via 25. This mixture is supplied onto the back-side absorbent paper 2 sent to the mixture supply position 50. The back-side absorbent paper 2 on which the mixture of the pulverized pulp material and the heat-sensitive polymer gel is placed is sent to the water-absorbing resin supply portion 52, and the water-absorbing resin is supplied from the water-absorbing resin supply device 27. Sex mixture is formed. The back-side absorbent paper 2 on which the water-absorbing mixture is placed is sent to the back-side absorbent paper folding unit 30, and both ends of the back-side absorbent paper are folded on the water-absorbing mixture. Next, the back-side absorbent paper 2 with both ends folded is sent to the supply location 53 of the front-side absorbent paper 4. The surface-side absorbent paper 4 is drawn from the roll 31 of the surface-side absorbent paper by the drawing roller 54 and is folded on the water absorbent material layer portion 3 and the water absorbent material layer portion 3 formed from the roll 31 by the water absorbent mixture. The paper is supplied onto both end portions 5 of the rear side absorbent paper 2 that has been separated. The belt-like layered product in which the back side absorbent paper 2, the water absorbent material layer portion and the front side absorbent paper 4 are arranged is sent to the embossing device 35, and is integrally compression molded by embossing. The band-shaped stratified molded body on which embossing by embossing is formed is sent to the band-shaped molded body cutter 36 and cut to a length of 670 mm to form the absorbent body 1. The absorbent body 1 formed by being cut by the belt-shaped molded body cutter 36 is sent to a polyethylene film supply location 55 for supplying the polyethylene film 11 for the back film below the absorbent body 1. In the polyethylene film supply location 55, the polyethylene film 11 for the back film is supplied from the roll 37 of the polyethylene film 11 by the supply roller 56 below the absorber 1, and the absorber 1 is placed on the polyethylene film 11. Then, it is sent to a polypropylene nonwoven fabric supply location 57 that covers the polypropylene nonwoven fabric 12. In the process in which the polypropylene nonwoven fabric 12 is drawn from the roll 39 of the polypropylene nonwoven fabric 12 and sent to the polypropylene nonwoven fabric supply location 57, the hot melt adhesive is sprayed from the sprayer 58, and the nonwoven fabric 12 is supplied by the supply roller 59 of the polypropylene nonwoven fabric 12. The polypropylene nonwoven fabric 12 supplied on the surface side absorbent paper 4 of the absorbent body 1 and coated with the hot melt adhesive is placed on the absorbent body 1 at the location 57 to be applied. The absorbent covering material coated with the polyethylene film 11 and the polypropylene nonwoven fabric 12 is sent to the side sealing machine 361, and both sides are pressure-bonded and bonded with a hot melt adhesive. The absorbent covering material with both side parts bonded is sent to the end seal machine 362 and bonded at both ends in the longitudinal direction, sent to the product cutter 42, cut into a predetermined size, and becomes an absorbent article. The absorbent article obtained in this way is sent from the absorbent article feed path 50. The absorbent article for animal sheets cut by the absorbent article cutter 42 is folded by a folding machine (not shown), packaged by a packaging machine (not shown), and shipped.

  In the above example, although the example about the flat type paper diaper for humans or animals was demonstrated, the sheet used for the disposable diaper for humans or animals, the sheet for humans or animals, a water absorbing mat The same applies to packaging materials. In the water-absorbent mat or packaging material, when both the front surface and the back surface are water permeable, a nonwoven fabric can be used instead of the polyethylene film of the back film.

In the embodiment shown in FIGS. 1 to 3, the absorbent body 1 can be used as a bag, an absorbent body, and can be used as an absorbent body for sanitary products such as disposable diapers, absorbent mats, various sheets, and packaging materials. is there. In the embodiment shown in FIGS. 1 to 3, the width of the back side absorbent paper 2 is formed to be larger than the length in the width direction of the front side absorbent paper 4, and before the front side absorbent paper 4 is placed. The both ends 5 in the width direction of the back-side absorbent paper 2 are folded over the end of the water-absorbing material layer 3 and the surface-side absorbent paper is placed thereon, and in the subsequent pressure heating step, heating is performed. Crimped (see FIG. 2).
However, the front-side absorbent paper 4 can be formed to have the same or substantially the same size so that the ends overlap with the back-side absorbent paper 2 in the width direction. In this way, when the lengths in the width direction of the front side absorbent paper 4 and the back side absorbent paper 2 are formed to be approximately equal, the end portions in the width direction of the front side absorbent paper 4 and the back side absorbent paper 2 are They can be bonded to each other by a hot melt bonding method (see FIG. 3).
In the example shown in FIG. 4 and FIG. 5, when a plastic material, particularly waste plastic material is used for the water-absorbing material layer portion, the absorption speed decreases, so a plurality of sheets are further provided between the surface-side absorbent paper and the nonwoven fabric. Further, an absorbent layer can be formed by stacking the absorbent papers. By providing such an absorbent layer made of a plurality of absorbent papers, the absorption rate of the paper diaper can be greatly improved. In this case, for example, in the case of flat paper diapers for humans, an absorbent layer (approximately 10 g) can be formed by overlapping two sheets of absorbent paper (for example, width 290 mm, length 670 mm) having a basis weight of 27 g / square meter. .

Example 1
The absorbent body 1 of this example has a width of 290 mm and a length of 670 mm, for example, and is an absorbent body used for a flat diaper for human use.
In this example, the absorbent body 1 is an example in which the front surface and the back surface are formed of thin paper, and 3.6 g of absorbent paper (basis weight: 16 g / square meter) having a width of 340 mm and a length of 670 mm is used as the back side absorbent paper 2. A bottom surface is formed, and 50 g of pulp pulverized and dried to a particle size of 5 mm or less and 5 g of a thermosensitive polymer gel are placed on the back-side absorbent paper 2, and a water-absorbing material layer portion 3 is formed.
In this example, 3.1 g of absorbent paper (basis weight: 16 g / square meter) having a width of 290 mm and a length of 670 mm is placed on the water absorbent material layer portion 3 as the surface-side absorbent paper 4 forming the surface. Is placed. A laminate in which the back-side absorbent paper 2, the water-absorbing material layer 3 and the front-side absorbent paper 4 are superposed in this order is integrally molded by pressure to form the absorbent body 1. The absorbent body 1 formed by pressure molding has, for example, embossed ridges (not shown) formed on the front side absorbent paper 4 and the back side absorbent paper 2 at the time of pressure molding. The obtained absorbent body 1 had a width of 290 mm and a length of 670 mm.

  This absorbent body 1 is placed on a polyethylene film 4.8 g having a thickness of 20 μm, a width of 365 mm and a length of 720 mm, and an upper surface thereof is a polypropylene nonwoven fabric having a width of 300 mm and a length of 720 mm (basis weight: 16 g / square meter) 3 .9 g, and both end portions of the polyethylene film were folded under both ends of the polypropylene non-woven fabric and adhered by a hot melt bonding method to produce a flat type disposable diaper having a width of 300 mm and a length of 720 mm.

200 ml of tap water was poured into a flat type paper diaper having an outer size, a width of 300 mm, and a length of 720 mm, which was produced in Example 1, from a large water dispenser having a thin dropper-type discharge port. The time from the end of water absorption until the surface feels dry (that is, the drying speed) was 85 seconds. After 3 minutes of water absorption, 10 pieces of filter paper having a diameter of 110 mm are placed on the paper diaper, and a weight of 1.5 kg is placed thereon, and after 1 minute, the amount of water absorbed by the filter paper (that is, the return amount) is determined. It was measured. The amount of water returned is 0.1 g, giving a completely dry feel. This amount of return indicates the amount of water returned to the paper diaper where the water absorbed in the water-absorbing material layer portion of the sheet returns to the water-permeable thin layer portion on the surface again. Does not give the user a wet feel when using disposable diapers. The weight of the paper diaper absorbed by this water injection was about 270 g. The water-absorbed paper diaper was dried for 60 minutes at a temperature of 50 to 80 ° C. in a blow dryer. The weight after drying is 140 g. It shows dehydration at a relatively low drying temperature. This paper diaper was completely immersed in tap water and allowed to absorb water sufficiently. Soluble components were eluted. The weight after the immersion was 1980 g. This indicates that the disposable diaper produced in Example 1 can be used for excretion several times. There is no change in the shape of the disposable diaper by this immersion, and the total weight impregnated with water is 1980 g, which indicates that it can withstand excretion several times. Thus, this sheet can be used again as a disposable diaper by dipping in water for a certain period of time and drying.
Although this paper diaper was used, it could be used without any change compared to conventional paper diapers.

Example 2
In the embodiment shown in FIGS. 1 to 3, the absorbent body 1 can be used as a bag, an absorbent body, and can be used as an absorbent body for sanitary products such as disposable diapers, absorbent mats, various sheets, and packaging materials. is there.
The absorbent body 1 of this example has a width of 290 mm and a length of 670 mm, for example, and is an absorbent body used for a paper diaper.
In this example, the absorbent body 1 is an example in which the front surface and the back surface are formed of thin paper, and 3.6 g of absorbent paper (basis weight: 16 g / square meter) having a width of 340 mm and a length of 670 mm is used as the back side absorbent paper 2. And 50 g of pulp pulverized and dried to a particle size of 5 mm or less, 4 g of heat-sensitive polymer gel, and 1 g of water-absorbing resin are placed on the back-side absorbent paper 2. A water absorbent material layer portion 3 is formed.
In this example, 3.1 g of absorbent paper (basis weight: 16 g / square meter) having a width of 290 mm and a length of 670 mm is placed on the water absorbent material layer portion 3 as the surface-side absorbent paper 4 forming the surface. Is placed. A laminate in which the back-side absorbent paper 2, the water-absorbing material layer 3 and the front-side absorbent paper 4 are superposed in this order is integrally molded by pressure to form the absorbent body 1. The absorbent body 1 formed by pressure molding has, for example, embossed ridges (not shown) formed on the front side absorbent paper 4 and the back side absorbent paper 2 at the time of pressure molding. The obtained absorbent body 1 had a width of 290 mm and a length of 670 mm.

  The absorbent body 1 was placed on a polyethylene film (basis weight: 16 g / square meter) 3.9 g having a thickness of 20 μm, a width of 360 mm and a length of 720 mm, and the upper surface thereof was a polypropylene nonwoven fabric having a width of 300 mm and a length of 720 mm ( (Basis weight: 16 g / square meter) 3.9 g, and both ends of the polyethylene film are folded back on both ends of the polypropylene non-woven fabric and bonded together by a hot melt bonding method. A flat type disposable diaper having a width of 300 mm and a length of 720 mm (See FIG. 10).

200 ml of tap water was poured from a syringe needle onto a flat type paper diaper having an outer size and a width of 300 mm and a length of 720 mm produced in Example 2 to absorb water. The drying speed of this disposable diaper was 60 seconds, and the return amount was zero because it could not be measured. The water-absorbing paper diaper weighed about 270 g. The water-absorbed paper diaper was dried in a blow dryer at a relatively low drying temperature of 50 to 80 ° C. for 60 minutes. The weight of the dried paper diaper was 198 g. This paper diaper was completely immersed in tap water to absorb water sufficiently to separate and remove soluble components. The weight of the paper diaper after this immersion was 2230 g. Thus, like the paper diaper produced in Example 1, this paper diaper can be used again as a paper diaper by dipping in water for a certain period of time and drying.
Although it was used for this diaper, it could be used without any change compared to conventional paper diapers.

Example 3
In the embodiment shown in FIGS. 1 to 3, the absorbent body 1 is a sheet for a paper diaper, and the front and back surfaces are formed of thin paper.
The absorbent body 1 of this example has a width of 290 mm and a length of 670 mm, for example, and is an absorbent body used for a paper diaper.
In this example, the absorbent body 1 is an example in which the front surface and the back surface are formed of thin paper, and 3.6 g of absorbent paper (basis weight: 16 g / square meter) having a width of 340 mm and a length of 670 mm is used as the back side absorbent paper 2. 50 g of pulp material dried to a particle size of 5 mm or less, 3.5 g of thermosensitive polymer gel, and polyacrylic acid-based superabsorbent resin 1 .5 g is placed, and the water-absorbing material layer portion 3 is formed.
In this example, 3.1 g of absorbent paper (basis weight: 16 g / square meter) having a width of 290 mm and a length of 670 mm is placed on the water absorbent material layer portion 3 as the surface-side absorbent paper 4 forming the surface. Is placed. A laminate in which the back-side absorbent paper 2, the water-absorbing material layer 3 and the front-side absorbent paper 4 are superposed in this order is integrally molded by pressure to form the absorbent body 1. The absorbent body 1 formed by pressure molding has, for example, embossed ridges (not shown) formed on the front side absorbent paper 4 and the back side absorbent paper 2 at the time of pressure molding. The obtained absorbent body 1 had a width of 290 mm and a length of 670 mm.
The absorbent body 1 is placed on a polyethylene film 4.8 g having a thickness of 20 μm, a width of 365 mm and a length of 720 mm, and an upper surface thereof is a polypropylene nonwoven fabric having a width of 300 mm and a length of 720 mm (basis weight: 16 g / square meter) 3 .9 g, and both ends of the polyethylene film were folded under both ends of the polypropylene non-woven fabric and adhered by a hot melt bonding method to produce a flat type disposable diaper having an outer size of 300 mm in width and 720 mm in length ( (See FIG. 10).

200 ml of tap water was poured from a syringe needle onto a sheet for flat type disposable diapers having a size of 300 mm and a length of 720 mm produced in Example 3, and allowed to absorb water. The drying speed of this sheet was 45 seconds, and the amount of return was not measurable and was zero. The weight of the absorbed sheet was about 270 g. The water-absorbed sheets were dried in a blow dryer for 60 minutes at a relatively low drying temperature of 50 to 80 ° C. The weight after drying was 225 g. This paper diaper was completely immersed in tap water to absorb water sufficiently. The weight after this immersion was 2410 g. Thus, like the paper diaper produced in Example 1, this paper diaper can be used again as a paper diaper by dipping in water for a certain period of time and drying.
Although this paper diaper was used, it could be used without any change compared to conventional paper diapers.

Example 4
The absorbent body 1 of this example has a width of 290 mm and a length of 670 mm, for example, and is an absorbent body used for a paper diaper.
In this example, the absorbent body 1 is an example in which the front surface and the back surface are formed of thin paper, and 3.6 g of absorbent paper (basis weight: 16 g / square meter) having a width of 340 mm and a length of 670 mm is used as the back side absorbent paper 2. 30 g of pulp material pulverized to a particle size of 5 mm or less, dried 3.5 g of heat-sensitive polymer gel, and 20 g of crushed paper diaper (highly water-absorbent resin) The water-absorbing material layer portion 3 is formed by placing about 2 g).
In this example, 3.1 g of absorbent paper (basis weight: 16 g / square meter) having a width of 290 mm and a length of 670 mm is placed on the water absorbent material layer portion 3 as the surface-side absorbent paper 4 forming the surface. Is placed. A laminate in which the back-side absorbent paper 2, the water-absorbing material layer 3 and the front-side absorbent paper 4 are superposed in this order is integrally molded by pressure to form the absorbent body 1. The absorbent body 1 formed by pressure molding has, for example, embossed ridges (not shown) formed on the front side absorbent paper 4 and the back side absorbent paper 2 at the time of pressure molding. The obtained absorbent body 1 had a width of 290 mm and a length of 670 mm.
The absorbent body 1 is placed on a polyethylene film 4.8 g having a thickness of 20 μm, a width of 365 mm and a length of 720 mm, and an upper surface thereof is a polypropylene nonwoven fabric having a width of 300 mm and a length of 720 mm (basis weight: 16 g / square meter) 3 .9 g, and both end portions of the polyethylene film were folded under both ends of the polypropylene nonwoven fabric and adhered by a hot melt bonding method to produce a flat type disposable diaper having a width of 300 mm and a length of 720 mm (see FIG. 10). .

200 ml of tap water was poured into a flat-type paper diaper having an outer size, a width of 300 mm and a length of 720 mm produced in Example 4 with a dropper-type large water dispenser, and allowed to absorb water. The drying speed of this disposable diaper was 35 seconds, and the return amount was zero because it could not be measured. The water-absorbing paper diaper weighed about 270 g. The water-absorbed paper diaper was dried in a blow dryer at a relatively low drying temperature of 50 to 80 ° C. for 60 minutes. The weight after drying was 171 g. This disposable diaper was completely immersed in tap water to absorb water sufficiently. The weight after this immersion was 2470 g. Thus, like the paper diaper produced in Example 1, this paper diaper can be used again as a paper diaper by dipping in water for a certain period of time and drying.
Although this paper diaper was used, it could be used without any change compared to conventional paper diapers.

  The embodiment of the absorber shown in FIG. 8 corresponds to the embodiment of the absorber shown in FIG. Therefore, also in the embodiment shown in FIG. 8, the back side absorbent paper 2 is formed such that the width direction is larger than the length of the front side absorbent paper 4 in the width direction. This is because, in the absorbent body of this example, the water absorbent material layer portion 3 is formed on the back side absorbent paper 2, the surface side absorbent paper 4 is placed thereon, and the back side absorbent paper 2 Both ends 5 in the width direction are folded over the both ends 6 of the surface side absorbent paper 4 and heat sealed, and the ends 5 of the back side absorbent paper 2 are placed on both ends 6 of the surface side absorbent paper 4. The water absorbent material layer 3 and the surface side absorbent paper 4 placed on the back side absorbent paper 2 can be stabilized by bending and overlapping.

  FIG. 9 is a plan view of an absorbent body 1 used in an embodiment of a flat type paper diaper, a human or animal sheet, an absorbent mat, or a packaging material sheet, as shown in FIG. The water-absorbing material layer 3 is provided on the surface-side absorbent paper 4 and the surface-side absorbent paper 4 is placed thereon, and the end 5 of the back-side absorbent paper 2 is folded on the end 6 of the surface-side absorbent paper 4. Overlaid. The flat type paper diaper of this example, a sheet for humans or animals, an absorbent mat, or a sheet for packaging material has a non-woven fabric 12 disposed on a surface-side absorbent paper 4, and a lower-surface-side absorbent paper 2 of the absorbent body 1. The end portion 14 of the nonwoven fabric 12 and the end portion 13 of the plastic film 11 are bonded by a hot melt bonding method.

The absorbent body 1 used in the embodiment of the flat type disposable diaper, the sheet for human or animal, the absorbent mat or the sheet for packaging material in FIG. 10 is as shown in FIG. 1, FIG. 2, FIG. 3 and FIG. In addition, the water-absorbing material layer 3 is provided on the back-side absorbent paper 2, and the surface-side absorbent paper 4 is placed on top of the water-absorbing material layer 3. In the case of the absorbent body shown in FIG. 2, the end portion 5 of the back side absorbent paper 2 is formed on the water absorbent material layer portion 3 by folding it, and the front side absorbent paper is arranged and fixed thereon. In the case of the absorbent body shown in FIG. 8, the end portion 5 of the back-side absorbent paper 2 is folded on the end portion 6 of the front-side absorbent paper 4. The flat type paper diaper, human or animal sheet, absorbent mat, or sheet material for packaging material of this example has a plastic film 11 arranged under the lower surface side absorbent paper 2 of the absorbent body 1, and the absorbent body 1. The both ends of the plastic film are folded and arranged on the top, the nonwoven fabric 12 is placed thereon, and the end portion 14 of the nonwoven fabric 12 and the end portion 13 of the plastic film 11 are bonded by a hot melt bonding method.
The absorbent body 1 used in a flat type disposable diaper, various sheets, a water absorbent sheet or a mat in the embodiment shown in FIG. 11 is an example in which a water absorbent material layer portion is formed in two layers.
In the absorbent body 1 of this example, a back side water absorbent material layer portion 61 made of a water absorbent mixture is formed on the back side absorbent paper 60, and an intermediate absorbent paper 62 is disposed on the back side absorbent paper layer 61. A surface-side water-absorbing material layer portion 63 made of a water-absorbing mixture is formed thereon, and a surface-side absorbent paper 64 is disposed on the surface-side water-absorbing material layer portion 63. In this example, the back-side absorbent paper 60 and the front-side absorbent paper 61 are both absorbent paper, thin paper, rayon paper, and sanitary paper, similar to the absorbent paper shown in FIGS. The intermediate absorbent paper 62 may be weaker in strength than the back-side absorbent paper 60 and the front-side absorbent paper 61, and absorbent paper, thin paper, and sanitary paper are used. Water-absorbing material layer part, surface-side water-absorbing material layer part and back-side water-absorbing material layer part contain water-absorbing material layer part containing pulp and heat-sensitive polymer gel, pulp, heat-sensitive polymer gel and water-absorbing resin A water-absorbing material layer part containing a pulp, a heat-sensitive polymer gel and a plastic, a water-absorbing material layer part containing a pulp, a heat-sensitive polymer gel, a plastic and a water-absorbing resin.

  In the present invention, the absorber is a blend of pulp having a particle size of 5 mm or less and a thermosensitive polymer gel, a pulp having a particle size of 5 mm or less, a blend of a thermosensitive polymer gel and a water-absorbing resin, or a pulp having a particle size of 5 mm or less. Water absorption of a mixture of a plastic pulverized to a particle size of 5 mm or less and a heat-sensitive polymer gel, or a pulp of a particle size of 5 mm or less, a plastic pulverized to a particle size of 5 mm or less, a combination of a heat-sensitive polymer gel and a water-absorbing resin Since it is made of a functional material layer, it can be easily dehydrated by heating the absorber after use to a temperature above the temperature sensitive point, and it can be dissolved by immersing the absorber after use in water. Except for the components, it can be reusable by heating and drying at a temperature higher than the temperature sensitive point. Also, the water-absorbent resin can be dehydrated by the thermosensitive polymer gel, and the used disposable diaper can be reclaimed.

In the present invention, an absorber or absorbent member made of expensive pulp or regenerated fluff pulp can be dehydrated by heat treatment by blending with a thermosensitive polymer gel, and after dehydration, pulverization Then, for example, it is separated by classification or the like and can be reused. Conventionally, the absorbent body, in particular disposable disposable diapers, has been discarded after a single use. However, the present invention facilitates heat dehydration by blending the heat-sensitive polymer gel into the absorbent body, thereby saving resources. Effective use can be planned.
Furthermore, the present invention can produce an absorbent body by using pulp waste material or waste plastic material, and therefore can provide an inexpensive absorbent body as compared with a conventional absorbent body, and a disposable diaper. Can be used for sanitary products such as sanitary products, animal sheets, water-absorbing mats and packaging materials, and cheap sanitary products, animal sheets, water-absorbing mats and packaging materials can be provided. Moreover, by attaching a surfactant to the water-absorbing material layer, the plastic material-containing waste material surface can be easily wetted, the water absorption rate can be increased, and the plastic waste material can be used. In the absorbent body and the sheet of the present invention, the use of a surfactant can relatively increase the water absorption rate. For example, it can be placed on the floor to keep the floor dry even if water drops fall on the floor. be able to. Therefore, for example, it can be placed on the floor to prevent it from getting wet with water on the floor, and in the case of an open-air event venue, it can be kept dry even on rainy days by laying in the aisle. It is effective that it does not give discomfort due to the wetness of the passage.

It is a general | schematic fragmentary sectional view which shows the outline of the cross-section of the absorber which has the one water-absorbing-material layer part of one Example of this invention. It is sectional drawing which shows the general | schematic cross-section of the width direction about the absorber of one Example of this invention which has the cross-section of the absorber of the Example shown in FIG. 1 has the cross-sectional structure of the absorber of the embodiment shown in FIG. 1, but shows a schematic cross-sectional structure in the width direction of the absorber of another embodiment of the present invention different from the absorber of the embodiment shown in FIG. It is sectional drawing. A disposable flat-type disposable diaper for humans or animals, sheets for humans or animals, an absorbent mat, or a sheet for packaging material using the absorbent body of the embodiment shown in FIG. It is sectional drawing which shows the general | schematic cross-section of the width direction. Another embodiment of the present invention that uses the absorbent body of the embodiment shown in FIG. 3 is a disposable flat-type disposable diaper for humans or animals, a sheet for humans or animals, an absorbent mat, or a packaging material. It is sectional drawing which shows the general | schematic cross-section of the width direction about a sheet. For human or animal disposable flat diapers, human or animal sheets, absorbent mats, or packaging materials of one embodiment of the present invention using the absorbent body of the embodiment of the present invention shown in FIG. It is a general | schematic process drawing which shows the process of manufacturing this sheet. It is process drawing which shows the outline of the detailed process of the process of manufacturing the animal sheet shown in FIG. It is sectional drawing which shows the general | schematic cross-section of the width direction about the absorber of other one Example of this invention from which the arrangement | positioning of the absorber of FIG. 2 and surface side absorption paper differs. The present invention is different in the arrangement of the absorbent material used in the disposable flat-type disposable diaper for humans or animals shown in FIG. 4, the sheet for humans or animals, the absorbent mat, or the sheet for packaging material and the surface-side absorbent paper. Schematic cross-sectional structure in the width direction of a disposable flat-type disposable diaper for humans or animals, a sheet for humans or animals, an absorbent mat or a sheet for packaging material, comprising the absorbent body of another embodiment of the present invention FIG. 4, 5 and 9 disposable flat type disposable diapers for humans or animals, sheets for humans or animals, absorbent mats or absorbent materials used for sheets for packaging materials, impervious to water Another embodiment of the present invention, which is different in the arrangement structure of a plastic film and a water-permeable nonwoven fabric, is a disposable flat paper diaper for humans or animals, a sheet for humans or animals, an absorbent mat, or a packaging material. It is sectional drawing which shows the general | schematic cross-section of the width direction about a sheet. It is sectional drawing which shows the general | schematic cross-section of the width direction about the absorber of other one Example of this invention in which the water absorbing material layer part is formed in two layers.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Absorber 2 Back side absorption paper or lower mount 3 Water-absorbent material layer part 4 Surface side absorbent paper or upper mount 5, 7 Both ends of the back side absorbent paper or lower mount 2 in the width direction 6, 8 Surface side absorbent paper or Both ends 10 of the upper mount 4 Flat paper diapers for humans or animals, sheets for humans or animals, sheets for absorbent mats or packaging materials 11 Plastic films, polyethylene film back sheets or polyethylene for back films Film 12 Nonwoven fabric or polypropylene nonwoven fabric 13 Both ends 14 of plastic film or polyethylene film backsheet Both ends of nonwoven fabric or polypropylene nonwoven fabric 15 Pulp receiving portion 16 Transport path 17 Grinding section 18 Grinding section supply path 19 Stock bottle 20 Fluff Pulp supply unit 21 Raw material stacking unit 22 Fluff pulp supply Path 23 fluff pulp supply section 24 thermosensitive polymer gel supply section 25 thermosensitive polymer gel supply path 26 water absorbent resin supply path 27 water absorbent resin supply path 28 roll of back side absorbent paper or lower mount 2, lower mount supply section 29 below Mount guide path 30 Lower mount folding section 31 Upper mount supply section or roll of surface side absorbent paper 4 Upper mount guide path 33 Embossing section 34 Laminate guide path 35 Absorber cut section or strip shaped body cutter 36 Hot melt bonding section 361 Side seal machine 362 End seal machine 37 Back sheet supply section or roll 38 of polyethylene film 11 Back sheet supply path 39 Non-woven cloth supply section or roll of polypropylene nonwoven cloth 12 Non-woven cloth supply path 41 Sheet laminate carry-out path 42 Absorbent article cut section 43 Absorption article conveyance path 44 Absorption article folding part 45 Counting / inspection part 46 Absorption Product transport path 47 Packaging section 48 Transport path 49 Absorbing paper feed roller, product cutter 50 Mixture supply position, product feed path 51 Mixture supply section 52 Deodorant supply location 53 Front side absorbent paper supply location 54 Front side absorbent paper draw roller 55 Polyethylene film supply location 56 Polyethylene film supply roller 57 Location for covering polypropylene nonwoven fabric 12 58 Hot melt adhesive sprayer 59 Polypropylene nonwoven fabric 12 supply roller

Claims (64)

Water absorption formed between the first water-absorbing paper layer portion, the second water-absorbing paper layer portion, and the first and second water-absorbing paper layer portions, containing a thermosensitive polymer gel and pulp. And the first water-absorbing paper layer portion, the water-absorbing material layer portion, and the second water-absorbing paper layer portion are combined and integrally formed. Absorber. Between the first water-absorbing paper layer portion, the second water-absorbing paper layer portion, and the first and second water-absorbing paper layer portions, a heat-sensitive polymer gel, pulp and the plastic are formed. The first water-absorbing paper layer portion, the water-absorbing material layer portion, and the second water-absorbing paper layer portion are combined and integrally formed. Characteristic absorber. Provided between the first water-absorbing paper layer portion, the second water-absorbing paper layer portion, and the first and second water-absorbing paper layer portions, and a thermosensitive polymer gel, pulp and plastic, and the thermosensitive polymer. A water-absorbing material layer portion formed by containing a smaller amount of surfactant than the gel, and the first water-absorbing paper layer portion, the water-absorbing material layer portion and the second water-absorbing paper layer portion are An absorbent body characterized by being combined and integrally formed. A first water absorbent paper layer, a second water absorbent paper layer, and a third water absorbent disposed between the first water absorbent paper layer and the second water absorbent paper layer. A first water-absorbing material layer portion formed between the paper layer portion and the first water-absorbing paper layer portion and the third water-absorbing paper layer portion, containing a thermosensitive polymer gel and pulp; And a second water-absorbing material layer formed by containing a thermosensitive polymer gel and pulp between the second water-absorbing paper layer and the third water-absorbing paper layer. The absorbent body, wherein the first, second and third water-absorbing paper layer portions and the first and second water-absorbing material layer portions are combined and integrally formed. A first water absorbent paper layer, a second water absorbent paper layer, and a third water absorbent disposed between the first water absorbent paper layer and the second water absorbent paper layer. A first water-absorbing material layer portion formed between the paper layer portion and the first water-absorbing paper layer portion and the third water-absorbing paper layer portion, containing a thermosensitive polymer gel and pulp; A second water-absorbing material layer formed by containing a thermosensitive polymer gel, pulp and plastic between the second water-absorbing paper layer and the third water-absorbing paper layer. The first, second and third water-absorbing paper layer portions and the first and second water-absorbing material layer portions are combined and integrally formed. A first water absorbent paper layer, a second water absorbent paper layer, and a third water absorbent disposed between the first water absorbent paper layer and the second water absorbent paper layer. A first water-absorbing material layer portion formed between the paper layer portion, the first water-absorbing paper layer portion and the third water-absorbing paper layer portion, containing a thermosensitive polymer gel, pulp and plastic. And a second water-absorbing material layer formed by containing a thermosensitive polymer gel, pulp and plastic between the second water-absorbing paper layer and the third water-absorbing paper layer. The first and second water-absorbing paper layer portions and the first and second water-absorbing material layer portions are combined and integrally formed. A first water absorbent paper layer, a second water absorbent paper layer, and a third water absorbent paper disposed between the first water absorbent paper layer and the second water absorbent paper layer. A first water-absorbing material layer portion formed by containing a thermosensitive polymer gel and pulp between the layer portion, the first water-absorbing paper layer portion and the third water-absorbing paper layer portion; The second water-absorbent paper layer portion and the third water-absorbent paper layer portion are formed by containing a smaller amount of surfactant than the heat-sensitive polymer gel, pulp, plastic and heat-sensitive polymer gel. And the first, second and third water-absorbing paper layer portions and the first and second water-absorbing material layer portions are combined and integrally formed. Absorber characterized by. A first water absorbent paper layer, a second water absorbent paper layer, and a third water absorbent disposed between the first water absorbent paper layer and the second water absorbent paper layer. Formed between the paper layer part, the first water-absorbing paper layer part and the third water-absorbing paper layer part, containing a smaller amount of surfactant than thermal polymer gel, pulp, plastic and thermal polymer gel Between the first water-absorbing material layer portion, the second water-absorbing paper layer portion, and the third water-absorbing paper layer portion, a smaller amount than the heat-sensitive polymer gel, pulp, plastic, and heat-sensitive polymer gel. A second water-absorbing material layer portion formed by containing a surfactant, and the first, second and third water-absorbing paper layer portions, and the first and second water-absorbing materials. The layer part is united and formed integrally, The absorber characterized by the above-mentioned. In the first water absorbent paper layer part, the water absorbent material layer part or the second water absorbent paper layer part, or in the first water absorbent paper layer part, the water absorbent material layer part and the second water absorbent paper layer part At least a part of the two or more kinds of layer portions contains a bactericidal substance, a substance having a deodorizing function, a substance having a bactericidal function, and a substance having a deodorizing function. The absorber according to any one of claims 1 to 3. 1st water absorbent paper layer part, 1st water absorbent material layer part, 3rd water absorbent paper layer part, 2nd water absorbent material layer part or 2nd water absorbent paper layer part, or 1st water absorption Two or more types of layers in the absorbent paper layer portion, the first water absorbent material layer portion, the third water absorbent paper layer portion, the second water absorbent material layer portion, or the second water absorbent paper layer portion. 9. The method according to claim 4, wherein at least a part thereof contains a bactericidal substance, a substance having a deodorizing function, a bactericidal substance and a substance having a deodorizing function. The absorber according to one item. The absorbent body according to any one of claims 1 to 3 and claim 9, wherein the water absorbent material layer portion is further formed to contain a water absorbent resin. The first or second water-absorbing material layer portion or the first and second water-absorbing material layer portions are further formed to contain a water-absorbing resin. The absorber as described in any one of these. The water-absorbing material layer portion is further formed to contain a water-absorbing resin in an amount equal to or less than that of the thermosensitive polymer gel. The absorber of description. The first or second water-absorbing material layer part or the first and second water-absorbing material layer parts are further formed to contain a water-absorbing resin in an amount equal to or less than the same amount with respect to the thermosensitive polymer gel. The absorbent body according to any one of claims 4 to 8 and claim 10, wherein: The first, second or third water-absorbing paper layer portion, or two or more types of paper layer portions in the first second and third water-absorbing paper layer portions are absorbent paper, thin paper, rayon paper or The absorbent body according to any one of claims 1 to 10, wherein the absorbent body is a sanitary sheet or a combination of two or more of these. The absorbent according to any one of claims 1 to 8, wherein the pulp is a pulp material including pulp waste material or paper powder having a particle size of 7 mm or less. The absorbent according to claim 2, 3, 5, 6, 7, or 8, wherein the plastic includes a waste plastic material having a particle size of 7 mm or less. Pulp materials include toilet paper waste, tissue paper waste, decorative paper waste, paper napkin waste, dust paper waste, paper cotton waste, paper towel waste, mechanical pulp waste, chemical pulp waste, semi-chemical pulp waste, cotton-like pulp waste, wood Pulp waste material, waste paper pulp waste material, synthetic resin fiber waste material, wood waste, wood waste, wood powder, house dismantling material, pulp-containing material recovered from fluff pulp of new construction waste or sanitary ware waste classification products, or toilet seat sheet waste Waste material for animal excrement disposal, bed sheet waste material, mask waste material, eye mask waste material, seat head cover waste material, pillow cover waste material, paper diaper waste material, sanitary napkin waste material, animal paper diaper waste material, animal sanitary napkin waste material , Milk pad waste, sweat pad waste, incontinence pad waste or animal sheets waste Absorbent body according to claim 16, characterized in that the flop-containing material or mixtures containing these recovered pulp containing material two or more. Paper powder is toilet paper waste, tissue paper waste, decorative paper waste, paper napkin waste, dust paper waste, paper cotton waste, paper towel waste, toilet seat sheet waste, animal waste treatment material waste, bedding sheet waste, mask Waste material, eye mask waste material, seat head cover waste material, pillow cover waste material, paper diaper waste material, sanitary napkin waste material, animal paper diaper waste material, sanitary napkin waste material, animal sanitary napkin waste material, milk pad waste material, sweat pad waste material, incontinence pad Waste material, waste sheet material for animals, laminated paper waste material for transporting fresh fish, laminated paper waste material for transporting vegetables, printed waste of laminated paper, scraps of laminated paper, buff powder, cardboard waste, newspaper waste, magazine waste, titanium paper waste, punch Fluff pulp of waste, sanitary ware waste classification product, water absorbent fiber waste, water absorbent resin waste, paper powder containing water absorbent resin, manufactured Two or more of paper dust generated at the time, paper powder generated at the time of manufacturing the nonwoven fabric, paper powder generated in the paper making process or paper powder generated at the time of manufacturing sanitary materials, or paper powder recovered from these, or recovered paper powder The absorbent body according to claim 17, wherein the absorbent body is a mixture. The water-absorbing material layer portion and the first and second water-absorbing material layer portions contain pulp material at a content of 30 to 80 weight percent, respectively. The absorber according to item. The water absorbent material layer portion and the first and second water absorbent material layer portions contain pulp material at a content of 50 to 70 weight percent, respectively. The absorber according to item. Waste plastic material is string-like synthetic resin waste, film-like synthetic resin waste, sheet-like synthetic resin waste, string-like synthetic rubber waste, film-like synthetic rubber waste, sheet-like synthetic rubber waste, laminated paper waste, paper diaper waste, milk pad Waste material, urine pad waste material or sanitary napkin waste material, or disposable diaper waste material, milk pad waste material, waste plastic material recovered from urine pad waste material or sanitary napkin waste material, or two or more of the waste plastic material The absorber according to claim 17 characterized by things. The absorbent according to any one of claims 1 to 8, wherein the thermosensitive polymer gel includes the recovered thermosensitive polymer gel. The absorbent according to any one of claims 1 to 8, wherein the heat-sensitive polymer gel is contained in the water-absorbing material layer portion at a content of 30% by weight or less. Water-absorbent resin is used as waste material for animal excrement disposal, bed sheet waste, disposable diaper waste, sanitary napkin waste, animal paper diaper waste, sanitary napkin waste, animal sanitary napkin waste, milk pad waste, sweat pad Waste material, incontinence pad waste material, animal sheet waste material, water-absorbent resin contained in fluff pulp or water-absorbent fiber waste material of classification product of sanitary ware waste, water-absorbent resin recovered from the waste material, or these recovered water-absorbent resin The absorbent body according to any one of claims 11 to 14, which is a water-absorbent resin mixture containing two or more of the following. The first water-absorbing paper layer portion forms the surface of the absorber, and the second water-absorbing paper layer portion forms the back surface of the absorber. The absorber according to claim 1. The water-permeable thin layer part which forms the surface, the water-impermeable thin layer part which forms a back surface, The said water-permeable thin layer part, and the said water-impermeable thin layer part of the said Claims 1 to 26 provided between The absorbent body according to any one of the above, wherein the absorbent body has one surface in contact with the back surface of the water-permeable thin layer portion and the other surface on the surface of the water-impermeable thin layer portion. Sheets characterized by being placed in contact with each other. The surface permeable thin layer portion that forms the surface, the back surface permeable thin layer portion that forms the back surface, and the surface permeable thin layer portion and the back permeable thin layer portion that are provided between the surface permeable thin layer portion and the back permeable thin layer portion. The absorbent body according to any one of the above, wherein the absorbent body is disposed so that both outer surfaces on the front surface side and the rear surface side thereof are in contact with respective inner surfaces of both the permeable thin layer portions on the front surface and the rear surface. A sheet characterized by being formed. The sheet according to claim 27 or 28, wherein the water-permeable thin layer portion is formed of a dry nonwoven fabric or a wet nonwoven fabric. 28. The sheet according to claim 27, wherein the water-impermeable thin layer portion forming the back surface is formed of a transparent or translucent plastic film or a flexible plastic sheet. The water-permeable thin layer part which forms the surface, the water-impermeable thin layer part which forms a back surface, The said water-permeable thin layer part, and the said water-impermeable thin layer part of the said Claims 1 to 26 provided between The absorbent body according to any one of claims 1 to 3, wherein the absorbent body is in contact with the inner surface of the water-permeable thin layer portion, and the rear surface of the absorbent body is an impermeable thin layer. A packaging material, wherein the packaging material is formed by being in contact with an inner surface of a portion. The front-side water-permeable thin layer portion that forms the surface, the back-side water-permeable thin layer portion that forms the back surface, and the front-side water-permeable thin layer portion and the back-side water-permeable thin layer portion. Item 26. The absorbent body according to any one of Items 1 to 26, wherein the absorbent body has both outer surfaces on the front surface side and the rear surface side on inner surfaces of both permeable thin layer portions on the front surface and the rear surface. A packaging material formed by being placed in contact with each other. The packaging material according to claim 31 or 32, wherein the water-permeable thin layer portion is formed of a dry nonwoven fabric or a wet nonwoven fabric. 32. The packaging material according to claim 31, wherein the water-impermeable thin layer portion forming the back surface is formed of a transparent or translucent plastic film or a flexible plastic sheet. The water-absorbing mixture containing the pulp material and the thermosensitive polymer gel is placed on the back-side absorbent paper, the surface-side absorbent paper is placed on the placed water-absorbing mixture, The manufacturing method of the absorber characterized by pressurizing a surface side absorbent paper, a water absorbing mixture, and a back side absorbent paper, and forming integrally. A water-absorbing mixture containing pulp material, plastic material and thermosensitive polymer gel is placed on the back-side absorbent paper, and the surface-side absorbent paper is placed on the placed water-absorbing mixture. A method for producing an absorbent body, wherein the laminated back-side absorbent paper, water-absorbent mixture, and front-side absorbent paper are pressed and formed integrally. A water-absorbing mixture containing a pulp material, a plastic material, and a thermosensitive polymer gel is placed on the back-side absorbent paper, and a surfactant is adhered onto the placed water-absorbing mixture, and the surfactant A surface-side absorbent paper is placed on the water-absorbing mixture to which the solution is adhered, and the stacked water-absorbing mixture and surface-side absorbent paper to which the surfactant solution is adhered are pressed. The manufacturing method of the absorber characterized by forming integrally. A water-absorbing mixture containing pulp material, plastic material and thermosensitive polymer gel is placed on the back-side absorbent paper, and a surfactant solution is adhered to the placed mixture, and the surfactant solution is The pulp material is placed on the adsorbed water-absorbing mixture, the surface-side absorbent paper is placed on the pulp material, and the stacked back-side absorbent paper and pulp material are placed on the surface of the surfactant solution. A method for producing an absorbent body, wherein the adsorbed water-absorbing mixture and the surface-side absorbent paper are pressed and formed integrally. The back-side water-absorbing mixture containing the pulp material and the thermosensitive polymer gel is placed on the back-side absorbent paper, the intermediate absorbent paper is placed on the back-side water-absorbing mixture, and after the placing, pressure molding or Without pressing, the surface-side water-absorbing mixture containing the pulp material and the thermosensitive polymer gel is placed on the placed intermediate absorbent paper, and the placed surface-side water-absorbing mixture is placed. A surface-side absorbent paper is placed thereon, and the stacked back-side absorbent paper, back-side water-absorbing mixture, intermediate absorbent paper, surface-side water-absorbing mixture, and surface-side absorbent paper are pressed and formed integrally. The manufacturing method of the absorber characterized by doing. A back-side water-absorbing mixture containing pulp material, plastic material and thermosensitive polymer gel is placed on the back-side absorbent paper, an intermediate absorbent paper is placed on the back-side water-absorbing mixture, and the post-loading is added. The surface-side water-absorbing mixture containing the pulp material and the thermosensitive polymer gel is placed on the placed intermediate absorbent paper without pressure molding or pressure molding, and the placed surface-side water-absorbing mixture is placed. The surface-side absorbent paper is placed on the adhesive mixture, and the stacked back-side absorbent paper, back-side absorbent mixture, intermediate absorbent paper, surface-side absorbent mixture and surface-side absorbent paper are pressurized, The manufacturing method of the absorber characterized by forming integrally. A back-side water-absorbing mixture containing pulp material, plastic material and thermosensitive polymer gel is placed on the back-side absorbent paper, an intermediate absorbent paper is placed on the back-side water-absorbing mixture, and the post-loading is added. A surface-side water-absorbing mixture containing pulp material, thermosensitive polymer gel and plastic material was placed on the placed intermediate absorbent paper without being pressure-molded or pressure-molded. A surface-side absorbent paper is placed on the surface-side water-absorbing mixture, and the back-side absorbent paper, back-side water-absorbing mixture, intermediate absorbent paper, surface-side water-absorbing mixture, and surface-side absorbent paper are added. The manufacturing method of the absorber characterized by pressing and forming integrally. A back-side water-absorbing mixture containing pulp material, plastic material and thermosensitive polymer gel is placed on the back-side absorbent paper, an intermediate absorbent paper is placed on the back-side water-absorbing mixture, and then pressed. An intermediate water absorbent paper is fixed, and a surface side water absorbent mixture containing pulp material, thermosensitive polymer gel and plastic material is placed on the fixed intermediate absorbent paper, and the placed surface side water absorbent is placed A surface-side absorbent paper is placed on the mixture, and the stacked back-side absorbent paper, back-side water-absorbent mixture, intermediate absorbent paper, surface-side water-absorbent mixture, and surface-side absorbent paper are pressed and integrated. The manufacturing method of the absorber characterized by forming in this. A back-side water-absorbing mixture containing pulp material, plastic material and thermosensitive polymer gel was placed on the back-side absorbent paper, and a surfactant solution was attached to the back-side water-absorbing mixture, and the surfactant was attached. The intermediate absorbent paper is placed on the back side water-absorbing mixture, and after placing, the pulp material and the thermosensitive polymer gel are placed on the placed intermediate absorbent paper without being subjected to pressure molding or pressure molding. And the surface side water-absorbing mixture containing the plastic material is placed, the surface side absorbent paper is placed on the placed surface side water absorbent mixture, the back side absorbent paper, A method for producing an absorbent body, wherein the side water-absorbing mixture, the intermediate absorbent paper, the surface-side water-absorbing mixture, and the surface-side absorbent paper are pressed and formed integrally. A back-side water-absorbing mixture containing pulp material, plastic material and thermosensitive polymer gel was placed on the back-side absorbent paper, and a surfactant solution was attached to the back-side water-absorbing mixture, and the surfactant was attached. The intermediate absorbent paper is placed on the back side water-absorbing mixture, and after placing, the pulp material and the thermosensitive polymer gel are placed on the placed intermediate absorbent paper without being subjected to pressure molding or pressure molding. And a surface-side water-absorbing mixture containing a plastic material, and a surfactant solution is attached to the surface-side water-absorbing mixture placed on the surface-side water-absorbing mixture to which the surfactant is attached. The surface side absorbent paper is placed, and the stacked back side absorbent paper, back side water absorbent mixture, intermediate absorbent paper, surface side water absorbent mixture and surface side absorbent paper are pressurized and formed integrally. The manufacturing method of the absorber characterized by these. The method for producing an absorbent body according to any one of claims 35 to 38, wherein the water absorbent mixture is a mixture further containing a water absorbent resin. 36. The method for producing an absorbent body according to any one of claims 353837, wherein the water-absorbing mixture is a mixture further containing a water-absorbing resin in an amount equal to or less than the amount of the heat-sensitive polymer gel. 45. The surface-side water-absorbing mixture or the back-side water-absorbing mixture, or the surface-side water-absorbing mixture and the back-side water-absorbing mixture are further mixtures containing a water-absorbing resin. The manufacturing method of the absorber as described in 1 .. The surface-side water-absorbing mixture or the back-side water-absorbing mixture or the surface-side water-absorbing mixture and the back-side water-absorbing mixture are further a mixture containing a water-absorbing resin in the same amount or less with respect to the thermosensitive polymer gel. The method for manufacturing an absorbent body according to any one of claims 39 to 44, wherein 45. The method for producing an absorbent body according to any one of claims 36 to 44, wherein the pulp material includes pulp waste material or paper powder having a particle size of 7 mm or less, or pulp waste material and paper powder. The method for manufacturing an absorbent body according to any one of claims 37 to 44, wherein the plastic material includes waste plastic material having a particle size of 7 mm or less. Pulp waste is toilet paper waste, tissue paper waste, decorative paper waste, paper napkin waste, dust paper waste, paper cotton waste, paper towel waste, paper diaper waste, sanitary napkin waste, animal paper diaper waste, sanitary napkin waste, animal Sanitary napkin waste material, milk pad waste material, sweat pad waste material, incontinence pad waste material, animal sheet waste material, mechanical pulp waste material, chemical pulp waste material, semi-chemical pulp waste material, cotton-like pulp waste material, wood pulp waste material, waste paper pulp waste material, wood The manufacturing method of the absorbent body according to claim 49, wherein the fluff pulp is a waste product, scrap material, wood powder, house dismantling material, new construction waste material or sanitary ware waste classification fluff pulp, or a mixture containing two or more thereof. Method. Waste paper waste, tissue paper waste, decorative paper waste, paper napkin waste, dust paper waste, paper cotton waste, paper towel waste, toilet seat sheet waste, animal waste treatment material waste, bedding sheet waste, mask Waste material, eye mask waste material, seat head cover waste material, pillow cover waste material, paper diaper waste material, sanitary napkin waste material, animal paper diaper waste material, sanitary napkin waste material, animal sanitary napkin waste material, milk pad waste material, sweat pad waste material, incontinence pad Waste materials, waste sheets for animals, laminated paper waste materials for transporting fresh fish, laminated paper waste materials for transporting vegetables, printed waste of laminated paper, scraps of laminated paper, buff powder, cardboard waste, newspaper waste, magazine waste, crushed waste paper disposable diapers Separation products rich in separated plastic materials, waste paper pulp waste, synthetic resin fiber waste, paper powder, titanium paper waste, bread Fluff pulp of waste, classification product of sanitary ware waste, water absorbent fiber waste, water absorbent resin waste, paper powder containing water absorbent resin, paper powder generated during bookbinding, paper powder generated during non-woven fabric production, generated in papermaking process The method for manufacturing an absorbent body according to claim 49, wherein the method is a paper powder generated at the time of manufacturing a sanitary material or a mixture containing two or more thereof. The waste plastic material includes plastic diaper waste, dairy pad waste, urine pad waste or sanitary napkin waste, or two or more of the recovered plastic materials. 50. The absorber according to 50. The water-absorbent resin may be a water-absorbent resin or a mixture of the water-absorbent resins or a paper diaper contained in a waste paper diaper pulverized product, a milk pad waste pulverized product, a urine pad waste pulverized product, a sanitary napkin waste pulverized product or an absorbent fiber waste pulverized product. Waste water pulverized product, milk pad waste pulverized product, urine pad waste pulverized product or sanitary napkin waste pulverized product, or a mixture of two or more of these recovered water absorbent resins. The manufacturing method of the absorber of Claim 47 or 48 characterized by the above-mentioned. 45. The method for producing an absorbent body according to claim 35, wherein the heat-sensitive polymer gel includes the recovered heat-sensitive polymer gel. 45. The method for producing an absorbent body according to claim 35, wherein the heat-sensitive polymer gel is contained in the water-absorbing material layer part at a content of 50% by weight or less. Two or more of the front side absorbent paper, the water absorbent mixture or the back side absorbent paper or the front side absorbent paper, the water absorbent mixture and the back side absorbent paper are at least a part thereof before or after being placed on the absorbent body. 39. The method for producing an absorbent body according to any one of claims 35 to 38, wherein a substance having a bactericidal action or a substance having a deodorizing function is applied. The front-side absorbent paper, the intermediate absorbent paper, the back-side absorbent paper, the front-side water-absorbing mixture or the back-side water-absorbing paper mixture, or two or more thereof are at least partly before or after being used in the absorbent body. 45. The method for manufacturing an absorbent body according to any one of claims 39 to 44, wherein a substance having bactericidal properties is impregnated in advance. The front-side absorbent paper or the back-side absorbent paper, or the front-side absorbent paper and the back-side absorbent paper are absorbent paper, thin paper, rayon paper, sanitary paper, or a combination of two or more thereof. The method for manufacturing an absorbent body according to any one of claims 35 to 38. The front side absorbent paper, intermediate absorbent paper or back side absorbent paper, or the front side absorbent paper, intermediate absorbent paper, and back side absorbent paper are absorbent paper, thin paper, rayon paper, sanitary paper, or a combination of two or more thereof. 45. The method for manufacturing an absorbent body according to any one of claims 39 to 44, wherein the absorbent body is paper. A non-woven fabric is disposed on the surface-side absorbent paper of the absorbent body produced by the method for producing an absorbent body according to any one of claims 35 to 60, and a plastic film is disposed on the back-side absorbent paper. A method for producing a sheet, comprising: crimping at least a part of the periphery of the arranged nonwoven fabric and plastic film. A non-woven fabric is disposed on the surface-side absorbent paper of the absorbent body produced by the method for producing an absorbent body according to any one of claims 35 to 60, and the non-woven fabric is disposed on the back-side absorbent paper. A sheet manufacturing method, wherein at least a part of the circumference of both of the arranged nonwoven fabrics is pressure-bonded to each other. A nonwoven fabric is disposed on the surface side absorbent paper of the absorbent body produced by the method for producing an absorbent body according to any one of claims 35 to 60, a plastic film is disposed over the back side absorbent paper, A method for producing a packaging material, comprising pressure-molding an absorbent body on which a nonwoven fabric and a plastic film are arranged. A non-woven fabric is disposed on the surface-side absorbent paper of the absorbent body produced by the method for producing an absorbent body according to any one of claims 35 to 60, and the non-woven fabric is disposed on the back-side absorbent paper. A method for producing a packaging material, comprising pressure-molding an absorbent body on which a nonwoven fabric is disposed.

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