CN116328013A - Paper diaper containing high-absorptivity resin - Google Patents

Paper diaper containing high-absorptivity resin Download PDF

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Publication number
CN116328013A
CN116328013A CN202310306931.3A CN202310306931A CN116328013A CN 116328013 A CN116328013 A CN 116328013A CN 202310306931 A CN202310306931 A CN 202310306931A CN 116328013 A CN116328013 A CN 116328013A
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CN
China
Prior art keywords
water
absorbent resin
waste
crushed
powder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310306931.3A
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Chinese (zh)
Inventor
刘若铎
杨卫东
阮玉林
刘健
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Zhejiang Satellite Science & Technology Co ltd
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Zhejiang Satellite Science & Technology Co ltd
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Priority to CN202310306931.3A priority Critical patent/CN116328013A/en
Publication of CN116328013A publication Critical patent/CN116328013A/en
Pending legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/496—Absorbent articles specially adapted to be worn around the waist, e.g. diapers in the form of pants or briefs
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/84—Accessories, not otherwise provided for, for absorbent pads
    • A61F13/8405—Additives, e.g. for odour, disinfectant or pH control
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/18—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing inorganic materials
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/22—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing macromolecular materials
    • A61L15/24—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/40—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing ingredients of undetermined constitution or reaction products thereof, e.g. plant or animal extracts
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/42—Use of materials characterised by their function or physical properties
    • A61L15/46—Deodorants or malodour counteractants, e.g. to inhibit the formation of ammonia or bacteria
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/42—Use of materials characterised by their function or physical properties
    • A61L15/60—Liquid-swellable gel-forming materials, e.g. super-absorbents
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/15203—Properties of the article, e.g. stiffness or absorbency
    • A61F2013/15284—Properties of the article, e.g. stiffness or absorbency characterized by quantifiable properties
    • A61F2013/15463—Absorbency
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
    • A61F2013/530481—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having superabsorbent materials, i.e. highly absorbent polymer gel materials
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
    • A61F2013/530481—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having superabsorbent materials, i.e. highly absorbent polymer gel materials
    • A61F2013/530708—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having superabsorbent materials, i.e. highly absorbent polymer gel materials characterized by the absorbency properties
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/84—Accessories, not otherwise provided for, for absorbent pads
    • A61F13/8405—Additives, e.g. for odour, disinfectant or pH control
    • A61F2013/8408—Additives, e.g. for odour, disinfectant or pH control with odour control
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/84—Accessories, not otherwise provided for, for absorbent pads
    • A61F2013/8473—Accessories, not otherwise provided for, for absorbent pads for diagnostic purposes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/62—Plastics recycling; Rubber recycling

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  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Epidemiology (AREA)
  • Engineering & Computer Science (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Materials Engineering (AREA)
  • Hematology (AREA)
  • Vascular Medicine (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Biomedical Technology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Botany (AREA)
  • Zoology (AREA)
  • Dispersion Chemistry (AREA)
  • Absorbent Articles And Supports Therefor (AREA)

Abstract

The invention discloses a paper diaper containing high-absorptivity resin, which comprises an upper absorption paper layer, a lower absorption paper layer and an absorption mixed layer part which is arranged between the upper absorption paper layer and the lower absorption paper layer and comprises plastic waste powder, paper pulp waste powder and water-absorptivity deodorizing resin, wherein the water-absorptivity deodorizing resin comprises zeolite powder and water-absorptivity resin, and the zeolite powder is dispersed in particles of the water-absorptivity resin.

Description

Paper diaper containing high-absorptivity resin
Technical Field
The invention belongs to the technical field of paper diapers, and particularly relates to a paper diaper containing high-absorptivity resin.
Background
The high-absorbency resin (SAP) has strong water-absorbing and water-retaining capacity, and can absorb water with hundreds to thousands times of the mass of the SAP, so that the SAP is widely applied to the field of sanitary products such as paper diapers and sanitary napkins. When the sanitary products such as paper diapers and the like are used, if a certain amount of urine is absorbed, the SAP can release obvious odor with uncomfortable smell, the odor of the SAP is overlapped with the odor of the mixed urine, so that serious odor problems are caused, and the use experience is reduced.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the paper diaper containing the high-absorptivity resin, which can simultaneously meet the absorption effect and the deodorization effect.
In order to achieve the above purpose, the present invention provides the following technical solutions: a paper diaper containing high-absorptivity resin comprises an upper absorption paper layer, a lower absorption paper layer, and an absorption mixed layer part comprising plastic waste powder, paper pulp waste powder and water-absorptivity deodorizing resin between the upper absorption paper layer and the lower absorption paper layer.
Further the water-absorbent deodorizing resin includes zeolite powder and a water-absorbent resin, wherein the zeolite powder is dispersed in particles of the water-absorbent resin.
Further the water absorbent resin includes a water insoluble water absorbent resin made of acrylic acid and acrylic acid ester, wherein the molar ratio of the acrylic acid component and the acrylic acid ester component is preferably 50:50 to 10:90.
further said zeolite powder comprises a type A zeolite, a type X zeolite, a type Y zeolite, a type T zeolite, a high silica zeolite.
The ratio of the water-absorbent resin to the zeolite powder is 80:20-60:40 by weight.
Further, in the method for producing a water-absorbent deodorizing resin, zeolite powder is kneaded with the hydrogel polymer obtained by the method for producing a water-absorbent resin, dried and pulverized.
Further plastic waste powder includes an isolated product containing plastic as a main component isolated from a crushed diaper waste, a crushed pad waste, a crushed diaper waste or a crushed tissue waste or a mixture of two or more of the crushed materials.
Further pulp waste powder is an isolated product containing plastic as a main component isolated from a crushed diaper waste, a crushed pad waste, a crushed diaper waste or a crushed tissue waste or a mixture of two or more of the crushed materials.
Compared with the prior art, the invention has the beneficial effects that: the invention not only can realize high absorptivity, but also can keep not to be dispersed after absorbing a large amount of urine, has the deodorizing effect, and the upper absorption paper layer can also be the water absorption paper for inspection so as to achieve the aim of partial health detection.
Detailed Description
In the description of the present invention, it should be noted that, for the azimuth words such as the terms "center", "transverse (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the azimuth and positional relationships are indicated azimuth or positional relationships, only for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or element in question must have a specific azimuth, be constructed and operated in a specific azimuth, and should not be construed to limit the specific scope of protection of the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features. Thus, the definition of "a first", "a second" feature may explicitly or implicitly include one or more of such feature, and in the description of the present invention, the meaning of "a number", "a number" is two or more, unless otherwise specifically defined.
A paper diaper containing high-absorptivity resin comprises an upper absorption paper layer, a lower absorption paper layer, and an absorption mixed layer part comprising plastic waste powder, paper pulp waste powder and water-absorptivity deodorizing resin between the upper absorption paper layer and the lower absorption paper layer.
The lower surface of the lower absorbent paper section is in contact with the plastic film in this embodiment.
The upper absorbent paper layer may be an inspection absorbent paper, and specifically, two or more commonly used inks containing a pH detection reagent, an ink containing a protein detection reagent, an ink containing a occult blood detection reagent, or an ink containing a urine bilirubin detection reagent may be printed on the absorbent paper. Therefore, the upper part of the water absorbing paper is at least two, and the detection reagent is printed on the uppermost water absorbing paper, so that the influence of paper powder and super absorbent resin on the printed detection reagent is avoided, and the aim of accurate detection is fulfilled.
Wherein the plastic waste powder comprises an isolated product containing plastic as a main component isolated from a crushed diaper waste, a crushed pad waste, a crushed diaper waste or a crushed tissue waste or a mixture of two or more of the crushed materials.
Wherein the pulp waste powder is an isolated product containing plastics as a main component isolated from a crushed diaper waste, a crushed breast pad waste, a crushed diaper waste or a crushed tissue waste or a mixture of two or more of the crushed materials.
The sanitary material such as paper diaper waste, breast pad, hip pad or paper towel of the defective product, which contains the plastic material, paper powder and water-absorbent resin, can be pulverized as it is as a mixture of pulverized materials containing the plastic waste powder, paper pulp waste powder and water-absorbent resin waste powder, with the weight content of the plastic waste powder being 14 to 25%, and the weight content of the paper pulp waste powder being 35 to 60%. The so-called dust collection loss of the dust generated when the sanitary material is manufactured, and the dust generated when the sanitary material is cut, can be used as plastic waste powder and pulp waste powder after pulverization due to paper powder containing plastic material and pulp material powder.
The plastic waste powder may be used as a pulverized material of artificial fiber waste powder, pulverized material of polyethylene film waste powder, pulverized material of polypropylene film waste powder or a mixture thereof, or a classification product mainly containing plastic as a classification of the waste powder or the mixture of the waste powder.
Further, as the pulp waste powder, crushed products of waste paper or paper powder, such as punching scraps or cutting scraps of account book paper, or classified paper powder of these crushed products can be used. As the waste crushed material containing plastic and pulp waste crushed, a paper diaper waste crushed material, a pad waste crushed material, a hip waste crushed material, or a paper towel waste crushed material, or two or more waste crushed materials of the waste crushed material, or a classification product containing pulp powder, such as a classification product of the pulp crushed material, may be used.
The water-absorbent deodorizing resin preferred in this embodiment includes zeolite powder and a water-absorbent resin, wherein the zeolite powder is dispersed in particles of the water-absorbent resin.
Preferred water-absorbent resins include water-insoluble water-absorbent resins made of acrylic acid and acrylic acid esters, wherein the molar ratio of the acrylic acid component and the acrylic acid ester component is preferably 50:50 to 10:90.
more preferably, the molar ratio of acrylic component to acrylate component is 40:60 to 25:75. thus, by leaving acrylic acid units in the water absorbent resin, the effect of adsorbing ammonium or the like as one malodor component can be obtained. When the molar ratio of the acrylic acid unit to the total amount of the acrylic acid component and the acrylic acid component exceeds 50%, the absorbability decreases. On the other hand, when the molar ratio of the acrylic acid unit is less than 10%, the pH of the obtained deodorant resin composition becomes alkaline, and even in this case, safety to the skin is involved.
The zeolite used in the zeolite powder is usually an aluminosilicate having a three-dimensional framework structure and can be represented by the general formula Am 2/noxal2o3.ysio2.zh2o. In the formula, a, x, y, and z represent the amounts of metal oxide, alumina, silica, and crystal water, respectively, and are integers, and M is a cation.
Examples of cations include alkali metal ions (sodium ions and potassium ions), alkaline earth metal ions (calcium ions and magnesium ions), ammonium ions, and the like. Preferred cations are alkali metal ions, sodium ions being particularly preferred. n is the valence of the cation. For x: the ratio of y is not particularly limited. Generally, 1:1 to 1:10, preferably about 1:2 to 1:5. furthermore, although it has crystal water according to the synthetic combination case, there is no limitation, particularly with respect to z.
Wherein the zeolite powder comprises A-type zeolite, X-type zeolite, Y-type zeolite, T-type zeolite and high-silicon zeolite.
The zeolite powder generally has an average particle size of 0.1 to 10 microns, preferably 0.5 to 5 microns, more preferably 1 to 4 microns.
From the viewpoint of exhibiting excellent deodorizing effect, the pore size of the zeolite powder is preferably small. The pore size is generally 1 to 9 angstroms, preferably 3 to 5 angstroms. If the pore diameter exceeds 9 angstroms, the surface area of the zeolite powder decreases and the deodorizing effect decreases. If the pore diameter is less than 1 angstrom, the adsorption capacity of malodor generating substances having a molecular size larger than the pore diameter is reduced, and thus, the adaptation range of the deodorizing effect occurs.
The preferable proportion of the water-absorbent resin to the zeolite powder is 80:20-60:40 by weight.
In the preferred method for producing a water-absorbent deodorizing resin according to this example, zeolite powder is kneaded with an aqueous gel polymer obtained by the method for producing a water-absorbent resin, dried and pulverized.
Of course, a method of kneading an aqueous gel of a water absorbent resin obtained by water absorption and zeolite powder, drying and pulverizing may also be employed;
after the water-absorbent resin and the powder particles of the zeolite powder are mixed in advance, kneading, drying and grinding are performed by adding water thereto;
by dispersing zeolite powder in a polymerization liquid obtained in the process of producing a water-absorbent resin, superposition-polymerizing, drying and grinding; a composition in which zeolite powder is dispersed in the granular particles of the water absorbent resin can be obtained. In this method, a low molecular weight polymerizable monomer is adsorbed in the pores of the zeolite powder, and the polymerization of the monomer causes a problem that the pores of the zeolite are blocked, thereby impairing the inherent deodorizing effect of the zeolite.
In the drying, a hot air dryer, a fluidized bed dryer, a belt dryer, a drum dryer, a Nauter dryer, a paddle dryer, a rotary kiln dryer, an infrared dryer, or the like may be used.
The grinding may be performed by a hammer mill, a pin mill, a roller mill, a grinder, a feather mill, a cutter mill, or the like.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above examples, and all technical solutions belonging to the concept of the present invention belong to the protection scope of the present invention. It should be noted that modifications and adaptations to the present invention may occur to one skilled in the art without departing from the principles of the present invention and are intended to be within the scope of the present invention.

Claims (8)

1. A diaper containing a highly absorbent resin, characterized in that: comprises an upper absorption paper layer and a lower absorption paper layer, and an absorption mixed layer part comprising plastic waste powder, paper pulp waste powder and water-absorbing deodorizing resin is arranged between the upper absorption paper layer and the lower absorption paper layer.
2. The paper diaper containing a high-absorbent resin according to claim 1, wherein: the water-absorbent deodorizing resin includes zeolite powder and a water-absorbent resin, wherein the zeolite powder is dispersed in particles of the water-absorbent resin.
3. The paper diaper containing a high-absorbent resin according to claim 2, wherein: the water-absorbent resin includes a water-insoluble water-absorbent resin made of acrylic acid and acrylic acid ester, wherein the molar ratio of the acrylic acid component and the acrylic acid ester component is preferably 50:50 to 10:90.
4. a diaper containing a high-absorbent resin according to claim 3, wherein: the zeolite powder comprises A-type zeolite, X-type zeolite, Y-type zeolite, T-type zeolite and high-silicon zeolite.
5. The paper diaper comprising a high-absorbent resin according to claim 4, wherein: the ratio of the water-absorbent resin to the zeolite powder is 80:20-60:40 by weight.
6. The paper diaper containing a high-absorbent resin according to claim 5, wherein: wherein a method for producing a water-absorbent deodorizing resin comprises kneading zeolite powder with an aqueous gel polymer obtained by the method for producing a water-absorbent resin, drying and pulverizing.
7. The paper diaper containing a high-absorbent resin according to claim 6, wherein: the plastic waste powder includes an isolated product containing plastic as a main component, which is isolated from a crushed diaper waste, a crushed pad waste, a crushed diaper waste, or a crushed tissue waste, or a mixture of two or more of the crushed materials.
8. The paper diaper containing a high-absorbent resin according to claim 7, wherein: the pulp waste powder is an isolated product containing plastics as a main component, which is isolated from a crushed diaper waste, a crushed pad waste or a crushed tissue waste or a mixture of two or more of the crushed materials.
CN202310306931.3A 2023-03-27 2023-03-27 Paper diaper containing high-absorptivity resin Pending CN116328013A (en)

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CN116328013A true CN116328013A (en) 2023-06-27

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