JPH0670953A - Absorptive article - Google Patents
Absorptive articleInfo
- Publication number
- JPH0670953A JPH0670953A JP4205125A JP20512592A JPH0670953A JP H0670953 A JPH0670953 A JP H0670953A JP 4205125 A JP4205125 A JP 4205125A JP 20512592 A JP20512592 A JP 20512592A JP H0670953 A JPH0670953 A JP H0670953A
- Authority
- JP
- Japan
- Prior art keywords
- absorbent
- sheet
- fiber
- liquid
- weight
- 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.)
- Granted
Links
Classifications
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- 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
- A61F13/534—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 an inhomogeneous composition through the thickness of the pad
- A61F13/537—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 an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer
- A61F13/5376—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 an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer characterised by the performance of the layer, e.g. acquisition rate, distribution time, transfer time
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- 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
- A61F2013/15292—Resistance, i.e. modulus or strength
- A61F2013/15308—Resistance, i.e. modulus or strength in wet conditions, i.e. wet strength
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- 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
- A61F2013/15406—Basis weight
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- 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
- A61F2013/15414—Bulk thickness
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- 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
- A61F2013/15447—Fibre dimension, e.g. denier or tex
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- 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
- A61F2013/15487—Capillary properties, e.g. wicking
- A61F2013/15495—Capillary properties, e.g. wicking pore dimension
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- 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
- A61F2013/15487—Capillary properties, e.g. wicking
- A61F2013/1552—Capillary properties, e.g. wicking with specific diffusion velocity
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- 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
- A61F2013/15544—Permeability
- A61F2013/1556—Water permeability
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- 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
- A61F2013/530007—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 being made from pulp
-
- 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
- A61F2013/530007—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 being made from pulp
- A61F2013/530036—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 being made from pulp being made in chemically-modified cellulosic material, e.g. Rayon
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- 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
- A61F2013/530131—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 being made in fibre but being not pulp
- A61F2013/53016—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 being made in fibre but being not pulp having special shape
- A61F2013/530167—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 being made in fibre but being not pulp having special shape being crimped
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- 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
- A61F2013/530131—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 being made in fibre but being not pulp
- A61F2013/530182—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 being made in fibre but being not pulp characterized by the connection between the fibres
- A61F2013/530189—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 being made in fibre but being not pulp characterized by the connection between the fibres with thermoplastic adhesive
-
- 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
- A61F2013/530131—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 being made in fibre but being not pulp
- A61F2013/530226—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 being made in fibre but being not pulp with polymeric fibres
-
- 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
- A61F2013/530131—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 being made in fibre but being not pulp
- A61F2013/530226—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 being made in fibre but being not pulp with polymeric fibres
- A61F2013/53024—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 being made in fibre but being not pulp with polymeric fibres being bicomponent fibres
-
- 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
- A61F2013/530131—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 being made in fibre but being not pulp
- A61F2013/530226—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 being made in fibre but being not pulp with polymeric fibres
- A61F2013/530299—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 being made in fibre but being not pulp with polymeric fibres being hydrophilic fibres
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- 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
- A61F2013/530131—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 being made in fibre but being not pulp
- A61F2013/530343—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 being made in fibre but being not pulp being natural fibres
-
- 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
- A61F2013/530131—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 being made in fibre but being not pulp
- A61F2013/530343—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 being made in fibre but being not pulp being natural fibres
- A61F2013/530357—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 being made in fibre but being not pulp being natural fibres of wool
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- 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
- A61F2013/530131—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 being made in fibre but being not pulp
- A61F2013/530343—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 being made in fibre but being not pulp being natural fibres
- A61F2013/530364—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 being made in fibre but being not pulp being natural fibres of bamboo
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- 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
- A61F2013/530131—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 being made in fibre but being not pulp
- A61F2013/530379—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 being made in fibre but being not pulp comprising mixtures of fibres
- A61F2013/53043—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 being made in fibre but being not pulp comprising mixtures of fibres with different ratio of components
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- 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
- A61F2013/530489—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 being randomly mixed in with other material
- A61F2013/530496—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 being randomly mixed in with other material being fixed to fibres
-
- 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
- A61F2013/53051—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 being only in particular parts or specially arranged
- A61F2013/530547—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 being only in particular parts or specially arranged positioned in a separate layer or layers
-
- 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
- A61F2013/5307—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 quantity or ratio of superabsorbent material
-
- 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
- A61F13/534—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 an inhomogeneous composition through the thickness of the pad
- A61F13/537—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 an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer
- A61F13/53708—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 an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer the layer having a promotional function on liquid propagation in at least one direction
- A61F2013/53721—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 an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer the layer having a promotional function on liquid propagation in at least one direction with capillary means
- A61F2013/53726—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 an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer the layer having a promotional function on liquid propagation in at least one direction with capillary means on the top layer
Landscapes
- Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Absorbent Articles And Supports Therefor (AREA)
- Nonwoven Fabrics (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、生理用ナプキン、紙お
むつ、失禁者用パッドで代表される吸収性物品に関する
ものであり、更に詳しくは、吸収体の一部又は全部に、
特定の吸収性シートと高吸収性ポリマーを用いることに
より、体液の吸収特性、特に拡散性、吸収体からの液戻
り防止性及び漏れ防止性を向上させた高吸収性の吸収性
物品に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an absorbent article represented by sanitary napkins, disposable diapers and incontinence pads, and more specifically, a part or all of an absorbent body,
By using a specific absorbent sheet and a superabsorbent polymer, the present invention relates to a superabsorbent absorbent article having improved absorption characteristics of body fluids, particularly diffusibility, prevention of liquid return from the absorber and prevention of leakage. is there.
【0002】[0002]
【従来の技術及び発明が解決しようとする課題】従来か
ら、体液の吸収性の向上を目的とした吸収性物品の提案
が数多く行われ、数多くの改善がなされたきた。そし
て、これらの改善の大部分は、吸収速度の向上、吸収体
から表面への液戻りの阻止、漏れ防止及び身体に対する
ベタツキの低減にあった。2. Description of the Related Art Conventionally, many proposals for absorbent articles have been made for the purpose of improving the absorption of body fluids, and many improvements have been made. Most of these improvements have been in the improvement of absorption rate, prevention of liquid return from the absorber to the surface, prevention of leakage and reduction of stickiness to the body.
【0003】例えば、吸収体の素材に関しては、吸収体
の素材として、物理的微細空間で液を吸収・保持する親
水性の吸収紙やパルプなどに替えて、液を物理化学的な
作用、即ち、イオン浸透圧を利用して高吸収性ポリマー
に液体を吸収、保持させることによって吸収容量を向上
させると共に規制後の液戻りを防止することが提案され
ている。この提案により、吸収性が向上し、現在はパル
プと高吸水性ポリマーとを併用した吸収体が殆どの吸収
性物品に用いられている。For example, regarding the material of the absorbent body, the material of the absorbent body is replaced with a hydrophilic absorbent paper or pulp which absorbs and retains the liquid in a physical fine space, and the liquid is subjected to a physicochemical action, that is, It has been proposed that the superabsorbent polymer absorbs and holds a liquid by utilizing ionic osmotic pressure to improve the absorption capacity and prevent the liquid from returning after the regulation. According to this proposal, the absorbency is improved, and at present, an absorbent body in which pulp and a super absorbent polymer are used in combination is used in most of the absorbent articles.
【0004】しかし、これらの吸収性物品であっても、
いぜんとして漏れ防止に関して十分なものとはいえな
い。そして、このような事実は、吸収性物品に対する不
満の第一が漏れにあることにより示唆されている。即
ち、イオン浸透圧によって液体を吸収、保持させるタイ
プの高吸水性ポリマーでは体液の吸収速度に限度があ
り、更に高吸収性ポリマーが体液に濡れないと体液を吸
収できないため、高吸水性ポリマーは、吸水速度の速い
パルプなどと併用して用いざるを得なかった。However, even with these absorbent articles,
Even so, it cannot be said that the leak prevention is sufficient. And such a fact is suggested by the leakage being the first dissatisfaction with the absorbent article. That is, a superabsorbent polymer of a type that absorbs and retains a liquid by ionic osmotic pressure has a limit to the absorption rate of the body fluid, and since the superabsorbent polymer cannot absorb the body fluid unless it wets the body fluid, the superabsorbent polymer is , Had to be used in combination with pulp with a high water absorption rate.
【0005】ところが、パルプは、吸収体として、柔軟
なフラッフ吸収層を形成した時に、スポット的に血液を
吸収するために、吸収体全体を効率よく利用するための
拡散性に劣る。また、パルプは、乾燥時にはある程度の
圧縮及び曲げ回復性を示すが、湿潤時には極度に強度が
低下し、殆どそれらの回復性を示さないため、湿潤した
パルプに応力が加わると、パルプが圧縮変形(以下「ヨ
レ」という)してその吸収空間が著しく減少し、一旦吸
収した体液がヨレに伴って容易に戻ってしまう。このヨ
レに伴うパルプ繊維空間の減少が、ポリマーへの体液の
移動抵抗の増大につながり、ポリマーの吸収効率を低下
させるばかりか、吸収体全体としてもヨレた後の再吸収
速度が著しく低下するため、漏れにつながることが多く
なっている。However, when a soft fluff absorbent layer is formed as an absorber, pulp absorbs blood in spots, and therefore has poor diffusivity for efficiently utilizing the entire absorber. Further, pulp exhibits a certain degree of compression and bending recovery properties when dried, but its strength is extremely reduced when wet, and hardly shows those recovery properties. Therefore, when stress is applied to the wet pulp, the pulp is compressed and deformed. The absorption space is significantly reduced (hereinafter referred to as “break”), and the body fluid once absorbed easily returns along with the break. The decrease in pulp fiber space due to this twist leads to an increase in resistance to transfer of body fluid to the polymer, which not only reduces the absorption efficiency of the polymer but also significantly reduces the re-absorption rate after twisting for the entire absorbent body. , Often leading to leaks.
【0006】これらのフラッフパルプの拡散性の乏しさ
を改善するため、パルプを圧縮/高密度化することによ
り、拡散性を向上させる技術もこれまでに報告されてい
るが、パルプのヨレを本質的に解決していないばかり
か、逆にパルプの繊維間距離が密になり過ぎることによ
り、ポリマーへの体液の移動抵抗が非常に大きくなっ
て、結果として、ポリマーの吸収効率が悪化してしまう
という不都合がある。また、ヨレを防止するために、天
然パルプ等を湿式にて抄造した湿式紙で、パルプと高吸
収性ポリマーからなる吸収体を包んで一体化し、防水紙
等で固定させ、ヨレを防止するといった試みもなされて
いる。この試みにより、わずかながらヨレは防止できる
が、本質的にパルプのヨレは防止できないことのみなら
ず、通常の天然パルプで抄造された湿式紙は、抄紙時の
脱水/湿圧/乾燥過程において、水が脱水/乾燥する時
に、パルプ繊維間には、水素結合により非常に強い緊締
圧が働く。この水素結合による緊締圧によりパルプ繊維
間は非常に締まり、パルプ繊維から抄紙された湿式紙は
液の吸収/透過に関しては非常に遅いものとなってしま
う。即ち、パルプからなる湿式紙で吸収体を包んで一体
化し、ヨレを防止しても、吸収体の吸収速度を逆に悪化
させてしまい、結果として、吸収ポリマーが液を吸収す
る前に漏れてしまうといった欠点を有している。In order to improve the poor diffusibility of these fluff pulps, a technique for improving the diffusivity by compressing / densifying the pulp has been reported so far, but the twist of the pulp is essential. Not only that, but the fact that the distance between the fibers of the pulp becomes too close on the contrary, the transfer resistance of the body fluid to the polymer becomes very large, and as a result, the absorption efficiency of the polymer deteriorates. There is an inconvenience. In addition, in order to prevent twisting, a wet paper made from a wet process of natural pulp or the like is used to wrap the pulp and absorbent body made of a superabsorbent polymer into an integral body and fix it with waterproof paper or the like to prevent twisting. Attempts have also been made. By this attempt, it is possible to prevent a slight twist, but essentially not to prevent the twist of the pulp, and the wet paper made from the ordinary natural pulp is not easily removed in the dehydration / wet pressure / drying process during paper making. When water is dehydrated / dried, a very strong clamping pressure is exerted between pulp fibers due to hydrogen bonding. Due to the tightening pressure due to this hydrogen bond, the pulp fibers are very tightly closed, and the wet paper made from the pulp fibers becomes very slow in terms of liquid absorption / permeation. That is, even if the absorbent body is wrapped and integrated with wet paper made of pulp to prevent twisting, the absorption speed of the absorbent body is adversely deteriorated, and as a result, the absorbent polymer leaks before absorbing the liquid. It has the drawback of being lost.
【0007】また、特開昭56−60555号公報、実
公昭56−6096号公報等にみられる様に、フラッフ
パルプと吸水ポリマーからなる吸収性シート上面もしく
は両面に、レーヨンスパンボンド等の拡散性のシートを
積層することにより、拡散性を向上させる技術が開示さ
れている。この吸収体においても、基本的にフラッフパ
ルプと吸水性ポリマーを組み合わせて構成する以上は、
パルプのヨレ及びヨレに伴うパルプ繊維間距離の減少は
改善されていない。Further, as seen in JP-A-56-60555, JP-B-56-6096, etc., diffusivity such as rayon spun bond is provided on the upper surface or both surfaces of an absorbent sheet composed of fluff pulp and a water-absorbing polymer. There is disclosed a technique for improving the diffusivity by stacking the above sheets. In this absorbent body as well, basically, as long as it is configured by combining fluff pulp and a water-absorbent polymer,
The decrease of the distance between the pulp fibers due to the twist of the pulp and the twist of the pulp have not been improved.
【0008】特開昭54−158096号公報には、レ
ーヨンスパンボンド等のセルロース系の不織布間に、吸
収性ポリマーを挟持する技術が報告されている。この技
術においては、フラッフパルプを用いていないので、拡
散性とポリマーの吸収効率としては、多少なりとも改善
する方向にはあるものの満足なレベルではない。一方、
単繊維からなる不織布吸収性シートの血液の拡散性とポ
リマーの液移動抵抗を示す透過性は、相反する関係にあ
ることが知られている。液拡散性は、繊維径を小さくす
れば向上する傾向にあるが、逆に繊維間距離が減少する
ため、液透過性は悪化してしまう。逆に繊維径を大きく
すると、透過性は向上するが、拡散性に劣ってしまう。Japanese Unexamined Patent Publication (Kokai) No. 54-158096 reports a technique of sandwiching an absorbent polymer between cellulosic nonwoven fabrics such as rayon spunbond. In this technique, since fluff pulp is not used, the diffusivity and the absorption efficiency of the polymer tend to be improved to some extent, but they are not at a satisfactory level. on the other hand,
It is known that the non-woven fabric absorbent sheet made of monofilaments has a contradictory relationship between the blood diffusibility and the polymer liquid permeability, which is a resistance to liquid transfer. The liquid diffusivity tends to be improved by decreasing the fiber diameter, but conversely, the interfiber distance is reduced, so that the liquid permeability is deteriorated. On the contrary, when the fiber diameter is increased, the permeability is improved, but the diffusivity is deteriorated.
【0009】即ち、拡散性と透過性を両立させることは
相反する事象となり、双方を満たし、拡散性が高く透過
性を向上させ、極めて吸収性ポリマーの吸収効率の高い
吸収性物品を得ることが強く望まれていた。That is, it is a contradictory phenomenon to make both the diffusivity and the permeability compatible with each other, and it is possible to obtain an absorbent article satisfying both of them, having a high diffusivity and improving the permeability, and having an extremely high absorption efficiency of the absorbent polymer. It was strongly desired.
【0010】従って、本発明の目的は、吸収体の一部と
して、高拡散性高透過性吸収シートを用いることによ
り、高吸収性ポリマーの効果を最大限発揮させ、吸収体
からの液戻り、ベタツキ、漏れを極めて低減させ、使用
者が快適に使用できる吸収性物品を提供することにあ
る。Therefore, an object of the present invention is to maximize the effect of the superabsorbent polymer by using a highly diffusive and highly permeable absorbent sheet as a part of the absorbent, and to return the liquid from the absorbent, An object of the present invention is to provide an absorbent article in which stickiness and leakage are extremely reduced and which a user can comfortably use.
【0011】[0011]
【課題を解決するための手段】本発明は、液体透過性の
表面材、液体保持性の吸収体、及び液体不透過性の防漏
材を有する実質的に縦長の吸収性物品において、上記吸
収体は、少なくとも一部として、高拡散高透過性吸収シ
ートと高吸収性ポリマーとを備え、該高拡散高透過性吸
収シートは、少なくとも、 (a) 嵩高性の親水性繊維;20〜80重量部 (b) 親水性微細繊維;80〜20重量部 (c) 熱溶融性接着繊維;0〜30重量部 を混合して抄紙した湿式不織布からなり、2.5g/cm
2 荷重下において0.3〜2.0mmの厚さを有すること
を特徴とする請求項1記載の吸収性物品を提供すること
により、上記目的を達成したものである。SUMMARY OF THE INVENTION The present invention provides a substantially longitudinal absorbent article having a liquid-permeable surface material, a liquid-retaining absorber, and a liquid-impermeable leak preventer. The body comprises, at least in part, a highly diffused and highly permeable absorbent sheet and a highly absorbent polymer, wherein the highly diffused and highly permeable absorbent sheet comprises at least (a) a bulky hydrophilic fiber; 20 to 80 wt. Part (b) Hydrophilic fine fiber; 80 to 20 parts by weight (c) Heat-melting adhesive fiber; 0 to 30 parts by weight, which is a wet non-woven fabric, 2.5 g / cm 2.
The above object is achieved by providing the absorbent article according to claim 1, which has a thickness of 0.3 to 2.0 mm under two loads.
【0012】本発明の吸収性物品の吸収体は、少なくと
も一部として、上記高拡散性高透過性吸収シート(以
下、単に「吸収性シート」という場合がある。)を用い
ているが、この様な吸収性シートを得るには、吸収性シ
ートのつくる空間構造を制御することが非常に重要な技
術となる。なぜなら、従来のパルプ繊維を主とする吸収
紙では、先に述べた様に湿式抄造時にパルプ繊維間に強
い水素結合が働き、パルプ繊維間が密になり過ぎ、嵩高
性は非常に乏しく且つ液体の透過性も非常に悪くなって
しまうからである。また、嵩高な吸収性シートを製造す
る方法として、エアーレイ法等の乾式法によってパルプ
等を嵩高に積層し、これに適当な結合材を用いて結合さ
せることも考えられる。確かにこの方法によれば、非常
に低密度で嵩高である程度透過性の高い吸収性シートを
得ることができるが、パルプ繊維間距離が大きいがゆえ
に拡散性に乏しいものとなってしまう。即ち、該吸収性
シートを得るには、いかに湿式抄造時の水素結合による
緊締力をコントロールし、嵩高な吸収性シートを造りな
がら、拡散性と液体透過性という一見相反する特性を両
立すべく吸収性シートの空間構造をいかに制御するかが
非常に重要な技術となるのである。The absorbent body of the absorbent article of the present invention uses the above-mentioned highly diffusive and highly permeable absorbent sheet (hereinafter may be simply referred to as "absorbent sheet") as at least a part thereof. In order to obtain such an absorbent sheet, controlling the spatial structure of the absorbent sheet is a very important technology. Because, in the conventional absorbent paper mainly composed of pulp fibers, strong hydrogen bond acts between pulp fibers during wet papermaking as described above, pulp fibers become too dense, and bulkiness is very poor and liquid. This is because the transparency of is also very poor. Further, as a method for producing a bulky absorbent sheet, it is conceivable to stack pulp and the like in a bulky manner by a dry method such as an air ray method and to bond them with an appropriate binder. Certainly, according to this method, it is possible to obtain an absorbent sheet having a very low density, a high bulk, and a certain degree of permeability, but since the distance between pulp fibers is large, the absorptivity becomes poor. That is, in order to obtain the absorbent sheet, how to control the tightening force due to hydrogen bonding during wet papermaking to create a bulky absorbent sheet while absorbing the seemingly contradictory characteristics of diffusivity and liquid permeability. How to control the spatial structure of the performance sheet is a very important technology.
【0013】次に、上記吸収体の上記吸収性シートを構
成する嵩高性の親水性繊維について説明する。嵩高性の
親水性繊維としては、その繊維の立体構造が嵩高性を有
する、即ち、クリンプ構造を有するか、屈曲している
か、分岐しているか、もしくは繊維の断面面積が3.0
×10-6cm2 以上で且つ断面の真円度が0.5以上、も
しくは断面の真円度によらず繊維断面面積が5.0×1
0-6cm3 以上であれば、いずれの親水性繊維でも用いる
ことができる。例えば、パルプ、綿、レーヨン等に代表
されるセルロース繊維や、アクリロニトリル、ポリビニ
ルアルコール等の親水性合成繊維等が挙げられ、これら
の中から、一種類のみ用いても良いし、数種類混合して
用いても良い。中でも、クリンプ構造を有するパルプ繊
維及び繊維断面面積や断面形状を自由にコントロースで
きる再生セルロース繊維やパルプ繊維をマーセル化処理
し、繊維断面を膨潤/増大させたマーセル化パルプが比
較的安価で容易に得られることができ、好ましく用いる
ことができる。Next, the bulky hydrophilic fibers constituting the absorbent sheet of the absorbent body will be described. The bulky hydrophilic fiber has a bulky three-dimensional structure, that is, has a crimp structure, is bent, is branched, or has a cross-sectional area of 3.0.
× 10 -6 cm 2 or more and the roundness of the cross section is 0.5 or more, or the cross-sectional area of the fiber is 5.0 x 1 regardless of the roundness of the cross section.
Any hydrophilic fiber can be used as long as it is 0 -6 cm 3 or more. Examples thereof include cellulose fibers typified by pulp, cotton, rayon, and hydrophilic synthetic fibers such as acrylonitrile and polyvinyl alcohol. Of these, only one kind may be used, or several kinds may be mixed and used. May be. Among them, pulp fibers having a crimp structure and regenerated cellulose fibers or pulp fibers that can freely control the cross-sectional area and cross-sectional shape of mercerized pulp with swelled / increased fiber cross-section are relatively inexpensive and easy. And can be preferably used.
【0014】ここで、湿式抄造時の繊維間に生ずる水素
結合による緊締力の制御は、繊維の構造が立体構造を有
しているか、繊維の断面面積及び断面形状を制御するこ
とにより、達成可能であることがわかった。嵩高性の親
水性繊維の湿式不織布全体に対する混率としては、20
〜80重量部が好ましく、より好ましくは30〜70重
量部である。嵩高性の親水性が20重量部未満では、目
的とする嵩高の吸収性シートが得られず、逆に80重量
部を越えると拡散性が乏しくなってしまうからである。Here, the control of the tightening force due to the hydrogen bond generated between the fibers at the time of wet papermaking can be achieved by controlling the cross-sectional area and cross-sectional shape of the fiber if the structure of the fiber has a three-dimensional structure. I found out. The mixing ratio of the bulky hydrophilic fiber to the entire wet nonwoven fabric is 20.
-80 parts by weight is preferable, and more preferably 30-70 parts by weight. This is because if the bulky hydrophilicity is less than 20 parts by weight, the desired bulky absorbent sheet cannot be obtained, and conversely if it exceeds 80 parts by weight, the diffusivity becomes poor.
【0015】続いて、上記吸収体の上記吸収性シートを
構成する親水性微細繊維ついて説明する。親水性微細繊
維としては、繊維表面が親水性であり、表面積が大きい
繊維、好ましくは繊維の断面面積が2.0×10-6cm2
以下であり、且つ断面の真円度が0.5未満であるか、
もしくは繊維表面積が1.0m2 /g以上である親水性
繊維が用いられる。このような繊維として、例えば、パ
ルプ、綿、レーヨン等に代表されるセルロース繊維やア
クリロニトリル、ポリビニルアルコール等の親水性合成
繊維等が挙げられ、これらのなかから一種類のみ用いて
も良いし、数種類混合して用いても良い。中でも、パル
プ繊維は、非常に安価に入手でき、且つ叩解条件により
繊維表面積もコントロールできるため、好ましく用いる
ことができる。例えば、クラフトパルプNBKP(商品
名;SKEENA PRIME, Skeena CelluloseCo.)を微細に叩
解したもの及びLBKP(商品名;PRINCE AL
BERT ASPEN HARDWOOD,ウエハウザ
ーペーパー(株))やワラパルプ等が挙げられる。Next, the hydrophilic fine fibers constituting the absorbent sheet of the absorbent body will be described. As the hydrophilic fine fibers, fibers having a hydrophilic surface and a large surface area, preferably, the cross-sectional area of the fibers is 2.0 × 10 −6 cm 2
Or less, and the circularity of the cross section is less than 0.5,
Alternatively, hydrophilic fibers having a fiber surface area of 1.0 m 2 / g or more are used. Examples of such fibers include cellulose, typified by pulp, cotton, rayon and the like, acrylonitrile, hydrophilic synthetic fibers such as polyvinyl alcohol, and the like, and only one kind may be used, or several kinds. You may mix and use it. Among them, pulp fiber can be used preferably because it is available at a very low cost and the fiber surface area can be controlled by beating conditions. For example, kraft pulp NBKP (trade name; SKEENA PRIME, Skeena Cellulose Co.) finely beaten, and LBKP (trade name; PRINCE AL)
BERT ASPEN HARDWOOD, Waferuser Paper Co., Ltd., straw pulp, etc. may be mentioned.
【0016】親水性微細繊維の湿式不織布全体に対する
混率としては、20〜80重量部であるが、30〜70
重量部が好ましい。混率が20重量部未満では、目的と
する拡散性が得られず、逆に80重量部を越えると、繊
維間距離が密になり過ぎ、透過性が悪くなってしまうか
らである。また、吸収性シートの空間構造を安定化させ
る目的で、熱溶融性接着繊維を湿式抄造時に混抄するこ
とにより、濡れても空間構造が安定に保たれるために好
ましく用いることができる。The mixing ratio of the hydrophilic fine fibers to the entire wet nonwoven fabric is 20 to 80 parts by weight, but 30 to 70.
Parts by weight are preferred. If the mixing ratio is less than 20 parts by weight, the desired diffusivity cannot be obtained, and conversely, if it exceeds 80 parts by weight, the interfiber distance becomes too close and the permeability deteriorates. Further, for the purpose of stabilizing the spatial structure of the absorbent sheet, by mixing the heat-melting adhesive fibers during wet papermaking, the spatial structure is kept stable even when wet, and therefore it can be preferably used.
【0017】次に、上記吸収体の上記吸収性シートを構
成する熱溶融性接着繊維について説明する。上記熱溶融
性接着繊維としては、加熱することにより、繊維が溶融
し、相互に接着する繊維が用いられる。例えば、ポリエ
チレン、ポリプロピレン、ポリエステル、及びポリビニ
ルアルコール等のオレフィン繊維、ポリエチレン−ポリ
プロピレン複合繊維、ポリエチレン−ポリエステル複合
繊維、低融点ポリエステル−ポリエステル複合繊維及び
繊維表面が親水性であるポリビニルアルコール−ポリプ
ロピレン複合繊維、ポリビニルアルコール−ポリエステ
ル複合繊維がより好ましく用いることができる。熱溶融
性接着繊維の湿式不織布全体に対する混率としては、0
〜30重量部であり、好ましくは2〜20重量部であ
る。混率が30重量部を越えると、吸収性シートの吸収
性及び拡散性が低下してしまい、好ましくないからであ
る。Next, the heat-meltable adhesive fiber constituting the absorbent sheet of the absorbent body will be described. As the above-mentioned heat-meltable adhesive fibers, fibers that are melted by heating and adhere to each other are used. For example, olefin fibers such as polyethylene, polypropylene, polyester, and polyvinyl alcohol, polyethylene-polypropylene composite fibers, polyethylene-polyester composite fibers, low-melting polyester-polyester composite fibers, and polyvinyl alcohol-polypropylene composite fibers whose fiber surface is hydrophilic, A polyvinyl alcohol-polyester composite fiber can be more preferably used. The mixing ratio of the heat-meltable adhesive fiber to the whole wet non-woven fabric is 0.
To 30 parts by weight, preferably 2 to 20 parts by weight. This is because if the mixing ratio exceeds 30 parts by weight, the absorptivity and diffusibility of the absorbent sheet will decrease, which is not preferable.
【0018】次に、上記吸収体の上記吸収性シートの嵩
高性について説明する。上記組成の繊維を混合して抄紙
した吸収性シートは、2.5g/cm2 荷重下において、
0.3〜2.0mm、好ましくは0.3〜1.0mmであ
る。吸収性シートの2.5g/m2 の荷重下の厚みが
0.3mm未満であると、液を一時保持する空間及び拡散
する液量が少なく、吸収性シート、特に高吸収ポリマー
の吸収効率としても十分に発揮できず、逆に厚みが2.
0mmを越えると、液を保持する空間が大きくなり過ぎ、
下層へ特に高吸収ポリマーへのスムーズな液の受け渡し
がされ難くなってしまうからである。生理食塩水に対す
る1分後のクレム吸収高さが、50mm以上且つ10分後
のクレム吸収高さが、100mm以上である吸収性シート
が好ましく、より好ましくは生理食塩水に対する1分後
のクレム吸収高さが60mm且つ10分後のクレム吸収高
さが120mm以上である。また、吸収拡散性に関して、
生理食塩水に対する1分後のクレム吸収高さが50mm未
満、もしくは10分後のクレム吸収高さが10mm未満で
あると吸収性シートの吸収拡散能力が不十分であり、高
吸収性ポリマーの吸収効率としても乏しくなってしまう
からである。Next, the bulkiness of the absorbent sheet of the absorbent body will be described. The absorbent sheet produced by mixing the fibers of the above composition under a load of 2.5 g / cm 2
It is 0.3 to 2.0 mm, preferably 0.3 to 1.0 mm. When the thickness of the absorbent sheet under a load of 2.5 g / m 2 is less than 0.3 mm, the space for temporarily retaining the liquid and the amount of the liquid to be diffused are small, and the absorption efficiency of the absorbent sheet, especially the high-absorbent polymer is improved. However, the thickness is 2.
If it exceeds 0 mm, the space for holding the liquid becomes too large,
This is because it is difficult to smoothly transfer the liquid to the lower layer, especially to the superabsorbent polymer. An absorbent sheet having a creme absorption height after 1 minute of physiological saline of 50 mm or more and a creme absorption height after 10 minutes of 100 mm or more is preferable, and more preferably, creme absorption after 1 minute of physiological saline. The height is 60 mm and the creme absorption height after 10 minutes is 120 mm or more. Also, regarding absorption and diffusion,
If the creme absorption height after 1 minute with respect to physiological saline is less than 50 mm, or if the creme absorption height after 10 minutes is less than 10 mm, the absorption and diffusion capacity of the absorbent sheet is insufficient, and the absorption of the super absorbent polymer This is because the efficiency will be poor.
【0019】以下に、本発明の吸収体を構成する他の構
成について説明する。本発明の吸収性物品を構成する吸
収性シートは、高吸収性ポリマーと共に用いることを要
件としているが、より有効に作用させるためには、高吸
収性ポリマーと接触する様に用いる。特に、高吸収性ポ
リマーを該吸収性シート間に挟持することにより、極め
て高吸収で高保持性の吸収性ポリマーシートを得ること
ができるので、より好ましく用いることができる。上記
吸収性シートは、高吸収性ポリマーへよりスムーズな液
の受け渡しを達成するために、下層への透過性が高い程
好ましい。具体的には、グリセリン85%水溶液の10
gの通過時間(測定法は、後述する実施例参照)が、1
00秒以下であることが好ましい。通過時間が100秒
より多いと、高吸収性ポリマーへ液が受け渡しされ難く
好ましくないからである。The other constitutions of the absorber of the present invention will be described below. The absorbent sheet constituting the absorbent article of the present invention is required to be used together with the superabsorbent polymer, but in order to act more effectively, it is used so as to come into contact with the superabsorbent polymer. In particular, by sandwiching the superabsorbent polymer between the absorbent sheets, an extremely high absorbent and highly retentive absorbent polymer sheet can be obtained, so that it can be more preferably used. It is preferable that the absorbent sheet have higher permeability to the lower layer in order to achieve smoother delivery of the liquid to the superabsorbent polymer. Specifically, 10% of 85% glycerin aqueous solution
The passage time of g (see the examples described later for the measuring method) is 1
It is preferably 00 seconds or less. This is because if the passage time is more than 100 seconds, it is difficult to deliver the liquid to the superabsorbent polymer, which is not preferable.
【0020】本発明に使用する吸収性シートは、上記嵩
高性の親水性繊維と親水性の微細繊維とを特定の混合比
で混抄することにより、透過性に関係する空間径の大き
な領域から、拡散性に関係する表面積をかせぐべく空間
径の小さな領域まで、1枚の吸収性シートのなかの空間
径構造/分布を制御でき、液透過性と液拡散性という一
見相反する特性を両立した吸収性シートを得ることがで
きたのである。The absorbent sheet used in the present invention is prepared by mixing the above-mentioned bulky hydrophilic fiber and hydrophilic fine fiber in a specific mixing ratio to obtain a large space diameter related to permeability, Absorption that can control seemingly contradictory properties of liquid permeability and liquid diffusivity by controlling the space diameter structure / distribution in one absorbent sheet up to a region with a small space diameter in order to gain surface area related to diffusivity I was able to obtain a sex sheet.
【0021】吸収性シートの空間径分布としては、水銀
ポロシメーターにより測定することができる。好ましい
空間径分布としては、空間径0.003〜200μmま
での空間径分布測定において全細孔表面積が1.0cm2
/g以上であり、透過性に関係の大きい空間径10〜2
00μmの領域の細孔表面積が全細孔表面積の18〜3
5%が好ましく、且つ拡散性に関係の大きい空間径0.
003〜1μm領域の細孔表面積が全細孔表面積の50
〜80%であることが好ましい。より好ましくは、全細
孔表面積が1.3m2 /g以上であり、空間径10〜2
00μm領域の細孔表面積が全細孔表面積の20〜30
%がより好ましく、且つ空間径0.003〜1μm領域
の表面積が50〜70%がより好ましい。The space diameter distribution of the absorbent sheet can be measured by a mercury porosimeter. As a preferable space diameter distribution, the total pore surface area is 1.0 cm 2 in the measurement of the space diameter of 0.003 to 200 μm.
/ G or more, and a space diameter of 10 to 2 that is greatly related to permeability
The pore surface area in the area of 00 μm is 18 to 3 of the total pore surface area.
5% is preferable, and the space diameter 0.
The pore surface area in the 003 to 1 μm region is 50 of the total pore surface area.
It is preferably -80%. More preferably, the total pore surface area is 1.3 m 2 / g or more, and the space diameter is 10 to 2
The pore surface area in the 00 μm region is 20 to 30 of the total pore surface area.
%, And the surface area of the space diameter region of 0.003 to 1 μm is more preferably 50 to 70%.
【0022】吸収性シートの全細孔表面積が1.0m2
/g未満、もしくは空間径0.003〜1μmの細孔表
面積の割合が50%未満になると目的とする拡散性が充
分に得られず好ましくなく、80%より多いと、微細領
域の表面積が大きくなりすぎ、透過性が不十分となる。
また、空間径10〜200μm領域の細孔表面積の割合
が20%未満になると目的とする透過性が充分に得られ
ず、35%より多いと逆に拡散性が不十分となる。The total pore surface area of the absorbent sheet is 1.0 m 2
/ G or the ratio of the pore surface area with a space diameter of 0.003 to 1 μm is less than 50%, the desired diffusivity cannot be obtained, which is not preferable. When it is more than 80%, the surface area of the fine region is large. Too much, resulting in insufficient transparency.
Further, if the ratio of the pore surface area in the space diameter range of 10 to 200 μm is less than 20%, the desired permeability cannot be obtained sufficiently, and if it exceeds 35%, the diffusivity is insufficient.
【0023】上記吸収性シートの好ましい坪量として
は、10〜200g/m2 であり、より好ましくは20
〜100g/m2 である。また、上記吸収性シートは、
1枚のみ使用しても良いし、数枚積層して用いても良
い。高吸収性ポリマーを上記吸収性シート間に挟持する
場合において、高吸収性ポリマーの量は、全吸収性ポリ
マーシート重量(吸収性シート重量部+高吸収性ポリマ
ーの重量で、ホットメルトやバインダー等で高吸収性ポ
リマーを固定する場合は、その重量を含む)に対し、1
0〜80重量部が好ましく、20〜70重量部がより好
ましい。高吸収性ポリマー量が10重量部未満になる
と、液を固定する絶対量が少なくなるので好ましくな
く、逆に80重量部を越えると、高吸収性ポリマーが液
を吸収時にポリマー層でゲルブロッキングを起こしてし
まい好ましくないからである。The basis weight of the absorbent sheet is preferably 10 to 200 g / m 2 , and more preferably 20.
~ 100 g / m 2 . Further, the absorbent sheet,
Only one sheet may be used, or several sheets may be stacked and used. When sandwiching the superabsorbent polymer between the above-mentioned absorbent sheets, the amount of the superabsorbent polymer is the weight of the total absorbent polymer sheet (part by weight of the absorbent sheet + weight of the superabsorbent polymer, such as hot melt or binder). When fixing a superabsorbent polymer with, including its weight)
0 to 80 parts by weight is preferable, and 20 to 70 parts by weight is more preferable. If the amount of superabsorbent polymer is less than 10 parts by weight, the absolute amount for fixing the liquid is reduced, which is not preferable. On the contrary, if it exceeds 80 parts by weight, the superabsorbent polymer causes gel blocking in the polymer layer during absorption of the liquid. It is not preferable because it causes it.
【0024】本発明の吸収性物品を構成する該吸収性シ
ート及び高吸収性ポリマーをさらに有効に作用させるた
めには、吸収体の最上層(液透過性表面材の非肌当接面
側の層)に、極めて透過性の高い嵩高シートを用い、そ
の下層に前記吸収性シートもしくは高吸収性ポリマーを
挟持する該高吸収性ポリマーシートを積層して構成する
ことにより、表面材を透過した体液が極めて素早く吸収
体に吸収され、その後上記拡散性吸収性シートで高吸収
性ポリマー全体に拡げられて、よりスムーズに高吸収性
ポリマーに体液を受け渡すことができるために、極めて
極薄で且つ高吸収で漏れがなく、使用者が快適に使用で
きる吸収性物品が得られ、より好ましく用いることがで
きる。In order to make the absorbent sheet and the superabsorbent polymer constituting the absorbent article of the present invention act more effectively, the uppermost layer of the absorbent body (on the non-skin contact surface side of the liquid permeable surface material) Body fluid that has passed through the surface material by using a bulky sheet having extremely high permeability as the (layer) and laminating the absorbent sheet or the superabsorbent polymer sheet sandwiching the superabsorbent polymer as the lower layer. Is very quickly absorbed by the absorbent body, then spread over the entire superabsorbent polymer by the diffusible absorbent sheet, and it is possible to more smoothly transfer the body fluid to the superabsorbent polymer. An absorbent article with high absorption and no leakage, which can be comfortably used by the user, is obtained, and can be used more preferably.
【0025】極めて透過性が高い嵩高シートとして、以
下に示すシートを用いることが好ましい。 a)嵩高性の親水性繊維;30〜98重量部 b)熱溶融性接着繊維;2〜30重量部 を少なくとも、混合・抄紙して造られており、2.5g
/cm2 荷重下において、0.3〜2.0mmの厚さを有
し、生理食塩水に対する1分後のクレム吸収高さが20
〜80mm、且つ10分後のクレム吸収高さが30〜10
0mmであり、グリセリン85重量%水溶液の10g通過
時間が10〜50秒であることを特徴としているシート
である。上述のように、嵩高性の親水性繊維と親水性微
細繊維とを特定の混合比で混抄し、1枚の嵩高シートの
空間構造を制御することにより、極めて高拡散で高透過
性の嵩高シートを得ることができた。また、本発明は、
吸収性物品の少なくとも一部として、上記吸収性シート
を用いれば良く、吸収性シートの上下等に、更に他のシ
ートや構成部材を配置するものであってもよい。更に、
上記吸収性シートは、少なくとも、嵩高性の親水性繊
維、親水性微細繊維及び熱溶融性接着繊維を前述の特定
の割合で混合して形成されたものであれば良く、他の成
分繊維が混合されていてもよい。As the bulky sheet having extremely high permeability, the following sheets are preferably used. a) bulky hydrophilic fiber; 30 to 98 parts by weight b) hot melt adhesive fiber; 2 to 30 parts by weight, at least 2.5 g prepared by mixing and papermaking
It has a thickness of 0.3 to 2.0 mm under a load of 1 / cm 2 and has a creme absorption height of 20 minutes after 1 minute against physiological saline.
~ 80mm, and the creme absorption height after 10 minutes is 30 ~ 10
The sheet has a length of 0 mm and a passage time of 10 g of an 85% by weight aqueous glycerin solution is 10 to 50 seconds. As described above, the bulky hydrophilic fiber and the hydrophilic fine fiber are mixed at a specific mixing ratio, and the spatial structure of one bulky sheet is controlled, whereby a bulky sheet having extremely high diffusion and high permeability is obtained. I was able to get Further, the present invention is
The above-mentioned absorbent sheet may be used as at least a part of the absorbent article, and other sheets and constituent members may be arranged above and below the absorbent sheet. Furthermore,
The absorbent sheet may be formed by mixing at least the bulky hydrophilic fiber, the hydrophilic fine fiber and the heat-meltable adhesive fiber in the above-mentioned specific ratio, and the other component fibers are mixed. It may have been done.
【0026】[0026]
【作用】本発明の吸収性物品によれば、表面材側の体液
は表面材を透過し、吸収体に吸収されるが、吸収体で
は、体液が高拡散高透過性吸収シートにおいて、より素
早く高吸収性ポリマー全体に体液を拡げ、よりスムーズ
に高吸収性ポリマーへ液を受け渡し、体液を極めて有効
に吸収体内に封じ込める。本発明の吸収性物品は、この
吸収性シートを高吸収性ポリマーと共に用いることによ
り、高吸収性ポリマーの吸収効率を最大限に発揮させ、
極めて液保持性が高いために表面への液戻りがなく、極
めて高吸収で漏れない吸収性物品を提供することができ
る。更には、特定の極めて透過性の高い嵩高な吸収性シ
ートと組み合わせて吸収体を構成することにより、従来
の吸収性物品と比較して、極薄で漏れの少なく身体への
フィット性が向上するため、使用者に更に快適な使用感
を付与する。According to the absorbent article of the present invention, the body fluid on the surface material side permeates the surface material and is absorbed by the absorbent body. In the absorbent body, the body fluid flows faster in the high diffusion and high permeability absorbent sheet. The body fluid is spread over the entire superabsorbent polymer, and the fluid is more smoothly transferred to the superabsorbent polymer, so that the body fluid can be contained very effectively in the absorbent body. Absorbent article of the present invention, by using this absorbent sheet together with the superabsorbent polymer, to maximize the absorption efficiency of the superabsorbent polymer,
Since the liquid retaining property is extremely high, the liquid does not return to the surface, and it is possible to provide an absorbent article that has extremely high absorption and does not leak. Furthermore, by configuring the absorbent body in combination with a specific highly permeable bulky absorbent sheet, compared to conventional absorbent articles, it is extremely thin, has less leakage, and improves fit to the body. Therefore, a more comfortable feeling is given to the user.
【0027】[0027]
【実施例】次に、本発明の吸収性部を下記実施例に基づ
いて具体的に説明する。尚、下記実施例においては、生
理用ナプキンを例に挙げて説明するが、本発明は、紙オ
ムツ等にも同様に適用することができる。本発明の実施
例は、基本的に図3に示す様に、液体透過性の表面材
1、液体保持性の吸収体2及び液体不透過性の防漏材3
を有する吸収性物品において、少なくとも上記吸収体2
には、高拡散高透過性吸収シート(吸収性シート)2A
と高吸収性ポリマー2Bが配置されている。EXAMPLES Next, the absorptive portion of the present invention will be specifically described based on the following examples. In the following examples, a sanitary napkin will be described as an example, but the present invention can be similarly applied to a disposable diaper and the like. In the embodiment of the present invention, basically, as shown in FIG. 3, a liquid-permeable surface material 1, a liquid-retaining absorber 2 and a liquid-impermeable leak preventer 3 are provided.
An absorbent article having at least the above-mentioned absorber 2
Highly diffused and highly permeable absorbent sheet (absorbent sheet) 2A
And the superabsorbent polymer 2B.
【0028】まず、本実施例及び比較例で用いられる吸
収性シート、吸収保持シート及び表面シートを下記要領
で製作し、それぞれの機能を測定した。吸収性シート2
Aとして、下記する吸収性シート(A)〜(G)を作成
した。 〔吸収性シート(A)〕嵩高性の親水性繊維として、ク
リンプ構造を有するパルプ(商品名;High Bulk Additi
ve(以下HBAと称す)、ウエハウザーペーパー
(株))40重量部、親水性微細繊維として、繊維断面
面積が1.9×10-6cm2 、繊維断面の真円度0.32
であるクラフトパルプNBKP(商品名;SKEENA PRIM
E, Skeena Cellulose Co.)50重量部、熱溶融性接着
繊維として、太さ1.1デニール、長さ5mmのポリエチ
レンテレフタレート(以下、PETと称す)(商品名;
TMOTNSB 、帝人(株))10重量部をそれぞれ水中に分
散し、これらを抄紙・乾燥した後、坪量40g/m2 の
吸収性シート(A)を得た。尚、抄紙時、吸収性シート
にはクレープを10%設定した。First, the absorptive sheet, the absorptive holding sheet and the surface sheet used in this example and the comparative example were manufactured in the following manner and their functions were measured. Absorbent sheet 2
As A, the following absorbent sheets (A) to (G) were prepared. [Absorbent Sheet (A)] Pulp having a crimp structure as a bulky hydrophilic fiber (trade name: High Bulk Additi
ve (hereinafter referred to as HBA), Waferuser Paper Co., Ltd. 40 parts by weight, hydrophilic fine fibers having a fiber cross-sectional area of 1.9 × 10 −6 cm 2 , and a roundness of the fiber cross-section of 0.32.
Kraft pulp NBKP (trade name; SKEENA PRIM
E, Skeena Cellulose Co.) 50 parts by weight, as a heat-melting adhesive fiber, polyethylene terephthalate (hereinafter referred to as PET) having a thickness of 1.1 denier and a length of 5 mm (trade name;
Ten parts by weight of TMOTNSB and Teijin Ltd. were dispersed in water, and after papermaking and drying, an absorbent sheet (A) having a basis weight of 40 g / m 2 was obtained. At the time of papermaking, a crepe of 10% was set on the absorbent sheet.
【0029】〔吸収性シート(B)〕嵩高性の親水性繊
維として、繊維断面面積が3.8×10-6cm2 で、繊維
断面の真円度が0.80のマーセル化パルプ(商品名;
ポロセニア−J、ITT RAYONIER INC.)60重量部、親水
性微細繊維として、繊維断面面積が1.9×10-6c
m 2 、繊維断面の真円度が0.32であるクラフトパル
プNBKP(商品名;SKEENA PRIME, Skeena Cellulose
Co.)40重量部をそれぞれ水中に分散し、これらを抄
紙・乾燥した後、坪量40g/m2 の吸収性シートBを
得た。尚、抄紙時、吸収性シートにはクレープを10%
設定した。[Absorbent Sheet (B)] Bulky hydrophilic fiber
The fiber has a fiber cross-sectional area of 3.8 × 10-6cm2And the fiber
Mercerized pulp with a roundness of cross section of 0.80 (trade name;
POROSENIA-J, ITT RAYONIER INC.) 60 parts by weight, hydrophilic
Cross section area is 1.9 × 10-6c
m 2, Craft pal with roundness of fiber cross section of 0.32
NBKP (brand name; SKEENA PRIME, Skeena Cellulose
Co.) 40 parts by weight are dispersed in water, respectively.
Paper, after drying, basis weight 40g / m2Absorbent sheet B
Obtained. In addition, at the time of papermaking, the absorbent sheet contains 10% crepe.
Set.
【0030】〔吸収性シート(C)〕嵩高性の親水性繊
維として、繊維断面面積が5.9×10-6cm2 で、繊維
断面の真円度が0.68で、長さが7mmのレーヨン(商
品名;コロナSBレーヨン、ダイワボウレーヨン(株))
10重量部及び繊維断面面積が3.8×10-6cm2 で、
真円度が0.80でのマーセル化パルプ(商品名;ポロ
セニア−J、ITT RAYONIER INC.)40重量部、親水性微
細繊維として、繊維断面面積が1.9×10-6cm2 、繊
維断面の真円度が0.32であるクラフトパルプNBK
P(商品名;SKEENA PRIME, Skeena Cellulose Co.)4
5重量部、熱溶融性接着繊維として、ポリビニルアルコ
ール(商品名;フィブリボンド、三昌(株))5重量部
をそれぞれ水中に分散し、これらを抄紙・乾燥した後、
坪量40g/m2 の吸収性シート(C)を得た。尚、抄
紙時、吸収性シートにはクレープを10%設定した。[Absorbent Sheet (C)] As the bulky hydrophilic fiber, the fiber cross section area is 5.9 × 10 −6 cm 2 , the fiber cross section roundness is 0.68, and the length is 7 mm. Rayon (Product name: Corona SB Rayon, Daiwabo Rayon Co., Ltd.)
10 parts by weight and a fiber cross-sectional area of 3.8 × 10 −6 cm 2 ,
40 parts by weight of mercerized pulp (trade name: POROSENIA-J, ITT RAYONIER INC.) Having a roundness of 0.80, hydrophilic fine fibers having a fiber cross-sectional area of 1.9 × 10 −6 cm 2 , fibers Kraft pulp NBK whose cross-section roundness is 0.32
P (Product name: SKEENA PRIME, Skeena Cellulose Co.) 4
5 parts by weight, 5 parts by weight of polyvinyl alcohol (trade name; Fibribond, Sansho Co., Ltd.) as a heat-meltable adhesive fiber were dispersed in water, respectively, and after papermaking and drying,
An absorbent sheet (C) having a basis weight of 40 g / m 2 was obtained. At the time of papermaking, a crepe of 10% was set on the absorbent sheet.
【0031】〔吸収性シート(D)〕嵩高性の親水性繊
維として、繊維断面面積が5.9×10-6cm2 で、繊維
断面の真円度が0.68で、長さが7mmのレーヨン(商
品名;コロナSBレーヨン、ダイワボウレーヨン(株))
80重量部、親水性微細繊維として、繊維断面面積が
1.9×10-6cm2 、繊維断面の真円度が0.32であ
るクラフトパルプNBKP(商品名;SKEENA PRIME, Sk
eena Cellulose Co.)10重量部、熱溶融性接着繊維と
して、ポリビニルアルコール(商品名;フィブリボン
ド、三昌(株))10部をそれぞれ水中に分散し、これ
らを抄紙・乾燥した後、坪量40g/m2 の吸収性シー
トDを得た。尚、抄紙時、吸収性シートにはクレープを
10%設定した。この吸収性シート(D)では、親水性
微細繊維の混合割合が10重量部であり、本発明の80
〜20重量部の範囲から逸脱している。[Absorbent Sheet (D)] The bulky hydrophilic fiber has a fiber cross-sectional area of 5.9 × 10 −6 cm 2 , a fiber cross-section of roundness of 0.68, and a length of 7 mm. Rayon (Product name: Corona SB Rayon, Daiwabo Rayon Co., Ltd.)
Kraft pulp NBKP (trade name; SKEENA PRIME, Sk) having 80 parts by weight, a hydrophilic fine fiber, a fiber cross-sectional area of 1.9 × 10 −6 cm 2 , and a roundness of the fiber cross-section of 0.32.
10 parts by weight of eena Cellulose Co.) and 10 parts of polyvinyl alcohol (trade name; Fibribond, Sansho Co., Ltd.) as heat-melting adhesive fibers are dispersed in water, respectively, paper-made and dried, and then the basis weight is obtained. An absorbent sheet D of 40 g / m 2 was obtained. At the time of papermaking, a crepe of 10% was set on the absorbent sheet. In this absorbent sheet (D), the mixing ratio of the hydrophilic fine fibers was 10 parts by weight, and 80% of the present invention was used.
Deviates from the range of 20 parts by weight.
【0032】〔吸収性シート(E)〕繊維断面面積が
1.9×10-6cm2 で、繊維断面の真円度が0.32で
あるクラフトパルプNBKP(商品名;SKEENA PRIME,
Skeena Cellulose Co.)を水中に分散した後、抄紙・乾
燥した後、坪量40g/m2 の吸収性シートEを得た。
尚、抄紙時、吸収性シートにはクレープを10%設定し
た。この吸収性シート(E)では、親水性微細繊維(ク
ラフトパルプNBKP)のみで構成されており、嵩高性
の親水性繊維が混合されていない。[Absorbent Sheet (E)] Kraft pulp NBKP (trade name; SKEENA PRIME, having a fiber cross-sectional area of 1.9 × 10 −6 cm 2 and a roundness of the fiber cross section of 0.32).
Skeena Cellulose Co.) was dispersed in water, and after paper making and drying, an absorbent sheet E having a basis weight of 40 g / m 2 was obtained.
At the time of papermaking, a crepe of 10% was set on the absorbent sheet. This absorbent sheet (E) is composed only of hydrophilic fine fibers (kraft pulp NBKP), and does not contain bulky hydrophilic fibers.
【0033】〔吸収性シート(F)〕0.7デニール、
長さ38mmのレーヨンステープル(ダイワボウレーヨン
(株))をウォータージェットにより繊維をからませて
得た。坪量40g/m2 のスパンボンド不織布を、吸収
性シートFとした。この吸収性シート(F)では、親水
性微細繊維及び嵩高性の親水性繊維が混合されていな
い。[Absorbent sheet (F)] 0.7 denier,
A 38 mm long rayon staple (Daiwa Bow Rayon Co., Ltd.) was obtained by entanglement of fibers with a water jet. A spunbonded nonwoven fabric having a basis weight of 40 g / m 2 was used as the absorbent sheet F. In this absorbent sheet (F), hydrophilic fine fibers and bulky hydrophilic fibers are not mixed.
【0034】〔吸収性シート(G)〕坪量40g/m2
の乾式パルプシート(商品名;キノクロス、本州製紙
(株))を吸収性シートGとした。この吸収性シート
(G)では、親水性微細繊維及び嵩高性の親水性繊維が
混合されておらず、且つ湿式不織布としていない。[Absorbent Sheet (G)] Basis Weight 40 g / m 2
The dry pulp sheet (trade name; Kinocloth, Honshu Paper Co., Ltd.) was used as the absorbent sheet G. In this absorbent sheet (G), the hydrophilic fine fibers and the bulky hydrophilic fibers are not mixed and the wet nonwoven fabric is not used.
【0035】ここで、繊維断面面積の測定は、繊維の断
面を面積が変化しないように、垂直にスライスし、電子
顕微鏡により断面写真をとる。その繊維断面を画像解析
装置(日本アビオニクス社製 Avio EXCEL)により断面面
積を測定する。任意の繊維断面を100点測定し、その
平均値を繊維断面面積とした。次に、繊維断面の真円度
は、同様に断面写真により、画像解析装置により、下記
に示す式(1)を用いて繊維断面の真円度を求めた。任
意の繊維断面を100点測定し、その平均値を繊維断面
の真円度とした。Here, the fiber cross-sectional area is measured by vertically slicing the fiber cross-section so that the area does not change, and taking a cross-sectional photograph with an electron microscope. The cross-sectional area of the fiber cross section is measured by an image analyzer (Avio EXCEL manufactured by Nippon Avionics Co., Ltd.). An arbitrary fiber cross section was measured at 100 points, and the average value was taken as the fiber cross section area. Next, for the roundness of the fiber cross section, similarly, the roundness of the fiber cross section was obtained by using an image analyzer by using a cross-sectional photograph and using the formula (1) shown below. An arbitrary fiber cross section was measured at 100 points, and the average value was taken as the roundness of the fiber cross section.
【0036】[0036]
【数1】 [Equation 1]
【0037】次に、図4に示す吸収保持ポリマーシート
2Eを種々作成した。以下に、吸収保持ポリマーシート
(A)〜(G)について説明する。 〔吸収保持ポリマーシート(A)〕吸収性シート(A)
の上に、ホットメルトトプコP−618B(東洋ペトロ
ライト(株)製)をスパイラル形状で坪量10g/m2
で散布した後、更に、ポリアクリル酸塩系の高吸収性ポ
リマーを坪量50g/m2 で散布した。さらに、吸収性
シートAを重ね、図4に示す様に、吸収性シート2A間
に高吸収性ポリマー2Bが挟持された吸収性ポリマーシ
ート(A)を得た。Next, various absorption-holding polymer sheets 2E shown in FIG. 4 were prepared. Hereinafter, the absorption-holding polymer sheets (A) to (G) will be described. [Absorption-holding polymer sheet (A)] Absorbent sheet (A)
On top of it, hot melt Topco P-618B (manufactured by Toyo Petrolite Co., Ltd.) in a spiral shape with a basis weight of 10 g / m 2
Then, a polyacrylate-based superabsorbent polymer was further sprayed at a basis weight of 50 g / m 2 . Further, the absorbent sheet A was stacked, and as shown in FIG. 4, an absorbent polymer sheet (A) was obtained in which the superabsorbent polymer 2B was sandwiched between the absorbent sheets 2A.
【0038】〔吸収保持ポリマーシート(B)〜
(G)〕吸収性シート(A)から吸収保持ポリマーシー
ト(A)をつくるのと同じ様にして、吸収性シート
(B)〜(G)を用いて、それぞれ吸収保持ポリマーシ
ート(B)〜(G)を得た。[Absorption-holding polymer sheet (B)-
(G)] In the same manner as when the absorbent holding polymer sheet (A) is made from the absorbent sheet (A), the absorbent sheets (B) to (G) are used, and the absorbent holding polymer sheet (B) to (G) was obtained.
【0039】次に表面シート1の作成について説明す
る。以下のようにして、表面シート(A)及び表面シー
ト(B)を作成した。 〔表面シート(A)〕アルキルホスフェートとソルビタ
ン脂肪酸エステルの混合界面活性剤が0.34重量%付
着したポリエチレン/ポリプロピレン複合繊維(チッソ
(株)製)を用いた坪量25g/m2 の乾式熱接着不織
布を、図5に示すように、不織布22上に、低密度ポリ
エチレン21(三井石油化学(株)製)を25μラミネ
ートしたもので、壁部23の開孔24の大きさが0.1
〜2mm2 で孔の密度が52個/cm2 である表面シートを
得た。これを表面シート(A)とした。Next, the preparation of the topsheet 1 will be described. The surface sheet (A) and the surface sheet (B) were created as follows. [Surface sheet (A)] Dry heat having a basis weight of 25 g / m 2 using a polyethylene / polypropylene composite fiber (manufactured by Chisso Corporation) to which 0.34% by weight of a mixed surfactant of alkyl phosphate and sorbitan fatty acid ester is attached. As shown in FIG. 5, the adhesive non-woven fabric is obtained by laminating 25 μ of low-density polyethylene 21 (manufactured by Mitsui Petrochemical Co., Ltd.) on the non-woven fabric 22, and the size of the opening 24 of the wall 23 is 0.1.
A surface sheet having a hole density of 52 holes / cm 2 of ˜2 mm 2 was obtained. This was used as the surface sheet (A).
【0040】〔表面シート(B)〕市販の生理用ナプキ
ン(商品名;ロリエ、花王(株))の表面シート(不織
布)を表面シート(B)とした。次いで、吸収性シート
(A)〜(G)において、2.5g/m2 荷重時の厚
み、生理食塩水に対する1分後及び10分後のクレム吸
収高さ、グリセリン85wt%通過時間、全細孔表面積及
び空間径0.01〜1μm領域の細孔表面積の割合及び
空閨径10〜20μm領域の細孔表面積の割合を求め、
それぞれの結果を下記表1に示した。[Surface sheet (B)] A surface sheet (nonwoven fabric) of a commercially available sanitary napkin (trade name; Laurier, Kao Corporation) was used as the surface sheet (B). Next, in the absorbent sheets (A) to (G), the thickness under a load of 2.5 g / m 2 , the creme absorption height after 1 minute and 10 minutes with respect to physiological saline, the glycerin 85 wt% passage time, the total fineness The ratio of the pore surface area and the pore surface area in the space diameter 0.01 to 1 μm region and the ratio of the pore surface area in the space diameter 10 to 20 μm region are calculated,
The respective results are shown in Table 1 below.
【0041】[0041]
【表1】 [Table 1]
【0042】ここで、表1の各測定項目について説明す
る。 2.5g/cm2 荷重時の厚み 吸収性シートを50×50cmにカットして、測定片に作
成し、この測定片について、荷重面積10cm2 (半径1
7.8mmの円板)で2.5g/cm2 の荷重をかけ、厚み
計にて吸収性シートの厚を求めた。合計10回の平均を
求め、その値を2.5g/cm2 荷重時の厚みとした。Now, each measurement item in Table 1 will be described. 2.5g / cm 2 Thickness under load Absorbent sheet was cut into 50 × 50cm and made into a measuring piece. The measuring area was 10cm 2 (radius 1
A load of 2.5 g / cm 2 was applied using a 7.8 mm disk), and the thickness of the absorbent sheet was determined with a thickness meter. An average of 10 times in total was obtained and the value was defined as the thickness under a load of 2.5 g / cm 2 .
【0043】1分後及び10分後のクレム吸収高さ まず、吸収性シートを縦250mm、幅20mmのカットし
て測定片を作製した。次いで、この測定片30を、図6
に示す如く、支持体31に弛みがないように垂下させて
上下両端を固定する。また、300×100×50mm
(縦×横×深さ)の直方体の容器32に生理食塩水33
を測定液として高さ40mmまで入れ、この生理食塩水3
3中に測定片30を浸す。測定片30を浸して後、1分
後の測定片30が液面から吸収した規制液の高さ、及び
10分後における測定片30が液面から吸収した高さを
それぞれ測定した。合計10点について、同様に測定
し、その平均値を採ってそれぞれ1分後の吸収高さh、
及び10分後の生理食塩水33の吸収高さh10とした。Creme absorption height after 1 minute and after 10 minutes First, an absorbent sheet was cut into a length of 250 mm and a width of 20 mm to prepare a measurement piece. Then, this measurement piece 30 is
As shown in (3), the support 31 is hung so that there is no slack, and the upper and lower ends are fixed. Also, 300 x 100 x 50 mm
Saline solution 33 is placed in a rectangular parallelepiped container 32 (length x width x depth).
As a measurement solution, add up to a height of 40 mm, and use this physiological saline solution 3
The measuring piece 30 is dipped in 3. After the measurement piece 30 was immersed, the height of the regulated liquid absorbed by the measurement piece 30 from the liquid surface after 1 minute and the height of the restriction liquid absorbed from the liquid surface after 10 minutes were measured. For 10 points in total, the same measurement was performed, and the average value was taken, and the absorption height h after 1 minute,
And the absorption height h 10 of the physiological saline solution 33 after 10 minutes.
【0044】液通過時間の測定 液通過時間の測定は、図7に示す測定装置を用いて行っ
た。まず、吸収性シートを縦50mm、横50mmにカット
して測定片40を作製し、次いで、この測定片40を図
7に示す如く、内径35mmのガラス管41、41で上下
両側から挟持固定した。この時、測定中に液が横からし
み出さないように、シリコンゴム42を介してクリップ
で両側から固定する。測定液として下記に示す割合で配
合調整したグリセリン85%水溶液43を10mlビーカ
ー44に10g取り、静かに注入する。グリセリン85
%水溶液43を注入した後、ガラス管41の開孔面積に
対し、50%以上測定片の面が現れるまでの時間を求
め、これを液通過時間とした。尚、測定液(グリセリン
85%水溶液)は以下のように調整した。グリセリン
(和光純薬工業(株))85gにイオン交換水15gを
混合した後、食用青色1号(東京化成工業(株))0.
01gを添加し青色に着色した。Measurement of liquid passage time The liquid passage time was measured using the measuring device shown in FIG. First, the absorbent sheet was cut into a length of 50 mm and a width of 50 mm to prepare a measurement piece 40, and then the measurement piece 40 was clamped and fixed from both upper and lower sides by glass tubes 41, 41 having an inner diameter of 35 mm as shown in FIG. . At this time, clips are fixed from both sides through the silicone rubber 42 so that the liquid does not seep out from the side during the measurement. As a measurement liquid, 10 g of an 85% aqueous glycerin solution 43 whose composition has been adjusted in the ratio shown below is placed in a 10 ml beaker 44 and gently injected. Glycerin 85
% After the injection of the aqueous solution 43, the time until 50% or more of the surface of the measurement piece appears with respect to the open area of the glass tube 41 was determined, and this was defined as the liquid passage time. The measurement liquid (85% glycerin aqueous solution) was prepared as follows. After mixing 15 g of ion-exchanged water with 85 g of glycerin (Wako Pure Chemical Industries, Ltd.), food blue No. 1 (Tokyo Chemical Industry Co., Ltd.)
01g was added and it colored blue.
【0045】全細孔表面積、空間径0.01〜1μm
における細孔表面積の割合、空間径10〜200μmに
おける細孔表面積の割合の測定 吸収性シートを縦10mm、幅20mmにカットする。計3
枚カットし、水銀ポロシメーター(島津製作所(株))
のサンプルセルに互いに重なり合わない様にセットし、
空間径0.003μm〜200μmまでの細孔分布を測
定した。吸収性シート(A)〜(G)の細孔分布曲線
(微分・積分曲線)を図11〜図17に示す。各図11
〜17に基づいて、空間径0.003〜200μmにわ
たる細孔表面積のトータルを全細孔表面積とし、それぞ
れ空間径0.003〜1μm及び空間径10〜200μ
mにおける細孔表面積の全細孔表面積の全細孔表面積に
対する割合を求めた。Total pore surface area, space diameter 0.01 to 1 μm
Measurement of the ratio of the pore surface area and the ratio of the pore surface area when the space diameter is 10 to 200 μm The absorbent sheet is cut into a length of 10 mm and a width of 20 mm. Total 3
Cut into pieces, and mercury porosimeter (Shimadzu Corporation)
Set so that they do not overlap each other in the sample cell of
The pore distribution with a space diameter of 0.003 μm to 200 μm was measured. The pore distribution curves (differential / integral curves) of the absorbent sheets (A) to (G) are shown in FIGS. 11 to 17. Each Figure 11
-17, the total pore surface area over a space diameter of 0.003 to 200 μm is defined as the total pore surface area, and the space diameter is 0.003 to 1 μm and the space diameter is 10 to 200 μm, respectively.
The ratio of the total pore surface area to the total pore surface area in m was determined.
【0046】実施例1 図1に示す如く、長さ195mm、幅75mmの吸収保持ポ
リマーシート2Eとして吸収保持ポリマーシート(A)
を用い、さらに、嵩高性の親水性繊維として、繊維断面
積が3.8×10-6cm2 で繊維断面の真円度が0.80
のマーセル化パルプ(商品名;ポロセンアーJ、ITT RA
Y ONIER INC.)70重量部、及び繊維断面積が5.9×
10-6cm2 繊維断面の真円度が0.68で長さが8mmの
レーヨン(商品名;コロバSBレーヨン、ダイワボウレ
ーヨン(株))20重量部、熱溶融性接着繊維として、
ポリビニルアルコール(商品名;フィブリボンド、三昌
(株))5重量部、その他の成分としてクラフトパルプ
NBKP(商品名;SKEENAPRIME、Skeena Cekkukose C
O.)10重量部をそれぞれ水中に分散し、これらを抄紙
し、乾燥した後、坪量30g/m2 に抄紙した嵩高高透
過性吸収シート(2C)を長さ195mm、幅170mmに
カットし、吸収体を構成した。尚、この嵩高高透過性吸
収シートは、2.5g/cm2 荷重時の厚み0.39mmで
あり、生理食塩水に対する1分後の吸収高さ35mm、1
0分後の吸収高さ50mmであり、グリセリン85%水溶
液10gの通過時間が25秒の吸収性シートであった。
得られた吸収体2をポリラミ防水紙3(長さ225mm、
幅95mm)で巻き上げ、更に長さ225mm、幅172mm
の表面シート1として表面シート(A)を用い、及びズ
レ止めテープ4を用い図1に示す構成により、生理用ナ
プキンを作成した。尚、図1中、符号6は固定用接着
在、5は剥離紙である。Example 1 As shown in FIG. 1, the absorption-holding polymer sheet (A) was used as an absorption-holding polymer sheet 2E having a length of 195 mm and a width of 75 mm.
In addition, as the bulky hydrophilic fiber, the fiber cross-sectional area is 3.8 × 10 −6 cm 2 and the roundness of the fiber cross-section is 0.80.
Mercerized pulp (trade name: POROSENAR J, ITT RA
Y ONIER INC.) 70 parts by weight and fiber cross-sectional area of 5.9 ×
10 -6 cm 2 20 parts by weight of rayon (trade name; Koroba SB rayon, Daiwabo Rayon Co., Ltd.) having a roundness of 0.68 and a length of 8 mm in a fiber cross section, as a heat-melting adhesive fiber,
Polyvinyl alcohol (trade name: Fibribond, Sansho Co., Ltd.) 5 parts by weight, and other components of kraft pulp NBKP (trade name: SKEENAPRIME, Skeena Cekkukose C)
(O.) 10 parts by weight of each was dispersed in water, papermaking these, drying, and cutting the bulky high-permeability absorbent sheet (2C) having a basis weight of 30 g / m 2 into a length of 195 mm and a width of 170 mm. , Constituted the absorber. This bulky and highly permeable absorbent sheet had a thickness of 0.39 mm under a load of 2.5 g / cm 2 , and had an absorption height of 35 mm after 1 minute against physiological saline solution.
It was an absorbent sheet having an absorption height of 50 mm after 0 minutes and having a passage time of 25 seconds for 10 g of an 85% glycerin aqueous solution.
The absorbent body 2 thus obtained was used as a poly-laminar waterproof paper 3 (length: 225 mm,
Roll up with a width of 95 mm), length 225 mm, width 172 mm
A sanitary napkin was prepared by using the topsheet (A) as the topsheet 1 and the slip-preventing tape 4 with the configuration shown in FIG. In FIG. 1, reference numeral 6 is a fixing adhesive, and 5 is a release paper.
【0047】実施例2 実施例1で用いた吸収保持ポリマーシート(A)の代わ
りに、吸収保持ポリマーシート(B)を用いる以外は、
実施例1と同様にして吸収体を作成し、図1に示す構成
により生理用ナプキンを作成した。Example 2 The absorbent-holding polymer sheet (B) used in Example 1 was replaced by the absorbent-holding polymer sheet (B).
An absorbent body was prepared in the same manner as in Example 1, and a sanitary napkin was prepared with the configuration shown in FIG.
【0048】実施例3 実施例1で用いた吸収保持ポリマーシート(A)の代わ
りに、吸収保持ポリマーシート(C)を用いる以外は、
実施例1と同様にして吸収体を作成し、図1に示す構成
により生理用ナプキンを作成した。Example 3 Instead of the absorbent / retaining polymer sheet (A) used in Example 1, the absorbent / retaining polymer sheet (C) was used.
An absorbent body was prepared in the same manner as in Example 1, and a sanitary napkin was prepared with the configuration shown in FIG.
【0049】実施例4 実施例1で用いた表面シート(A)の代わりに表面シー
ト(B)を用いる以外は、実施例1と同様にして吸収体
を作成し、図1に示す構成により生理用ナプキンを作成
した。Example 4 An absorbent body was prepared in the same manner as in Example 1 except that the surface sheet (B) was used in place of the surface sheet (A) used in Example 1, and the physiology was made according to the constitution shown in FIG. I made a napkin for me.
【0050】実施例5 図2に示す如く、長さ195mm、幅70mmの吸収保持ポ
リマーシート2Eとして、吸収保持ポリマーシート
(A)を用い、この吸収保持ポリマーシート(A)の上
層に、1.7デニール、長さ5mmのSAレーヨン(ダイ
ワボウレーヨン(株))75部、パルプ25部PVA
(ゴーセノール P-250)10部を混抄/抄紙してなる坪
量25g/m2 の吸収性シート2Dを長さ195mm、幅
75mmにカットし、2枚重ね、更にパルプ100%の坪
量18g/m2 の吸収性紙(長さ195mm、幅170m
m)で包んで一体化し吸収体2を得た。この吸収体2
を、ポリエチレンをラミネートしたラミネート紙3、表
面シートAを用いた表面材1及びズレ止めテープ4を用
い、図2に示す構成により、生理用ナプキンを作成し
た。尚、図2中、符号6は固定用接着剤、5は剥離紙で
ある。Example 5 As shown in FIG. 2, the absorption-holding polymer sheet (A) was used as the absorption-holding polymer sheet 2E having a length of 195 mm and a width of 70 mm. 75 parts of 7 denier, 5 mm long SA rayon (Daiwa Bowrayon Co., Ltd.), 25 parts of pulp PVA
Absorbent sheet 2D having a basis weight of 25 g / m 2 obtained by mixing 10 parts of (GOHSENOL P-250) in a papermaking / papermaking process was cut into a length of 195 mm and a width of 75 mm, two sheets were stacked, and a basis weight of 100% pulp was 18 g / m 2 absorbent paper (length 195 mm, width 170 m
m) was wrapped and integrated to obtain an absorber 2. This absorber 2
Using a laminated paper 3 laminated with polyethylene, a surface material 1 using a surface sheet A, and a slip prevention tape 4, a sanitary napkin was prepared with the configuration shown in FIG. In FIG. 2, reference numeral 6 is a fixing adhesive, and 5 is a release paper.
【0051】実施例6 実施例5で用いた吸収保持ポリマーシート(A)の代わ
りに、吸収保持ポリマーシート(B)を用いる以外は、
実施例5と同様にして、図2に示す構成により生理用ナ
プキンを作成した。Example 6 Except that instead of the absorbent / retaining polymer sheet (A) used in Example 5, the absorbent / retaining polymer sheet (B) was used.
A sanitary napkin having the structure shown in FIG. 2 was prepared in the same manner as in Example 5.
【0052】比較例1 実施例1で用いた吸収保持ポリマーシート(A)の代わ
りに吸収保持ポリマーシート(D)を用いる以外は、実
施例1と同様にして、図1に示す構成により生理用ナプ
キンを作成した。Comparative Example 1 A sanitary medicine having the structure shown in FIG. 1 was prepared in the same manner as in Example 1 except that the absorbent / retaining polymer sheet (D) was used in place of the absorbent / retaining polymer sheet (A) used in Example 1. I made a napkin.
【0053】比較例2 実施例1で用いた吸収保持ポリマーシート(A)の代わ
りに吸収保持ポリマーシート(E)を用いる以外は、実
施例1と同様にして、図1に示す構成により生理用ナプ
キンを作成した。Comparative Example 2 A sanitary medicine having the structure shown in FIG. 1 was prepared in the same manner as in Example 1 except that the absorbent / holding polymer sheet (E) was used in place of the absorbent / holding polymer sheet (A) used in Example 1. I made a napkin.
【0054】比較例3 実施例1で用いた吸収保持ポリマーシート(A)の代わ
りに吸収保持ポリマーシート(F)を用いる以外は、実
施例1と同様にして、図1に示す構成により生理用ナプ
キンを作成した。Comparative Example 3 A sanitary medicine having the structure shown in FIG. 1 was prepared in the same manner as in Example 1 except that the absorbent-holding polymer sheet (F) was used in place of the absorbent-holding polymer sheet (A) used in Example 1. I made a napkin.
【0055】比較例4 実施例1で用いた吸収保持ポリマーシート(A)の代わ
りに吸収保持ポリマーシート(G)を用いる以外は、実
施例1と同様にして、図1に示す構成により生理用ナプ
キンを作成した。Comparative Example 4 A sanitary medicine having the structure shown in FIG. 1 was prepared in the same manner as in Example 1 except that the absorbent-holding polymer sheet (G) was used instead of the absorbent-holding polymer sheet (A) used in Example 1. I made a napkin.
【0056】比較例5 実施例1で用いた吸収保持ポリマーシート(A)の代わ
りに吸収保持ポリマーシート(E)を用いる以外は、実
施例4と同様にして、図1に示す構成により生理用ナプ
キンを作成した。Comparative Example 5 A sanitary medicine having the structure shown in FIG. 1 was prepared in the same manner as in Example 4 except that the absorbent-holding polymer sheet (E) was used in place of the absorbent-holding polymer sheet (A) used in Example 1. I made a napkin.
【0057】比較例6 実施例5で用いた吸収保持ポリマーシート(A)の代わ
りに吸収保持ポリマーシート(F)を用いる以外は、実
施例5と同様にして、図2に示す構成により生理用ナプ
キンを作成した。Comparative Example 6 A sanitary medicine having the structure shown in FIG. 2 was prepared in the same manner as in Example 5 except that the absorbent-holding polymer sheet (F) was used in place of the absorbent-holding polymer sheet (A) used in Example 5. I made a napkin.
【0058】比較例7 実施例5で用いた吸収保持ポリマーシート(A)の代わ
りに吸収保持ポリマーシート(G)を用いる以外は、実
施例5と同様にして、図2に示す構成により生理用ナプ
キンを作成した。次に、本実施例1〜6における本発明
品1〜6及び比較例1〜7における比較品1〜7の吸収
性能を観るため、下記に示す方法によって、吸収時間、
液拡がり面積、動的液戻り量、漏れ試験を各生理用ナプ
キンについて行い、それぞれの結果を下記する表2に示
した。Comparative Example 7 A sanitary medicine having the structure shown in FIG. 2 was prepared in the same manner as in Example 5 except that the absorbent / retaining polymer sheet (G) was used in place of the absorbent / retaining polymer sheet (A) used in Example 5. I made a napkin. Next, in order to observe the absorption performance of the products 1 to 6 of the present invention in Examples 1 to 6 and the comparative products 1 to 7 in Comparative Examples 1 to 7, the absorption time was measured by the following method.
A liquid spreading area, a dynamic liquid returning amount, and a leak test were conducted for each sanitary napkin, and the respective results are shown in Table 2 below.
【0059】[0059]
【表2】 [Table 2]
【0060】(1)吸収時間、液拡がり面積(cm2 ) 図8に示す如く、実施例及び比較例で得られた生理用ナ
プキン80を水平に置き、直径10mmの注入口81のつ
いたアクリル板82を載せる。試験用の生理用ナプキン
80に5g/cm2 の荷重がかかるように、更に重り83
を載せる。注入口から脱繊維馬血(日本バイオテスト研
究所(株)製)6gを注入し、液が完全に吸収されるま
での吸収時間(秒)を求める。合計10点のサンプルを
測定し、その平均血を吸収時間(秒)とした。また、液
が完全に吸収されてから、20分間そのまま放置し、そ
の後生理用ナプキンを分解し、吸収保持ポリマーシート
の血液の拡がり面積(cm2 )を求めた。合計10点のサ
ンプルを測定し、その平均血を液拡がり面積とした。(1) Absorption time, liquid spreading area (cm 2 ) As shown in FIG. 8, the sanitary napkins 80 obtained in Examples and Comparative Examples were placed horizontally, and an acrylic resin having an injection port 81 with a diameter of 10 mm was attached. Place the plate 82. A weight 83 is added to the test sanitary napkin 80 so that a load of 5 g / cm 2 is applied.
Put. 6 g of defibrinated horse blood (manufactured by Japan Biotest Institute Co., Ltd.) is injected from the inlet, and the absorption time (second) until the liquid is completely absorbed is determined. A total of 10 samples were measured, and the average blood was used as the absorption time (second). Further, after the liquid was completely absorbed, the liquid was left as it was for 20 minutes, then the sanitary napkin was decomposed, and the blood spreading area (cm 2 ) of the absorbent polymer sheet was determined. A total of 10 samples were measured, and the average blood was defined as the liquid spreading area.
【0061】(2)動的液戻り量 図8に示すように、実施例及び比較例で得られた試験用
の生理用ナプキン80を水平に置き、直径10mmの注入
口81のついたアクリル板82を載せる。試験用の生理
用ナプキン80に5g/cm2 の荷重がかかるように、更
に重り83を載せる。注入口81から脱繊維馬血(日本
バイオテスト研究所(株)製)10gを注入し、液が完
全に注入されてから、20分間放置する。その後、75
cm幅×195mmにカットした坪量30g/m2 の吸収製
紙を10枚、試験用の生理用ナプキン80の上面(肌当
接面側)に重ね、図9に示す可動式女性腰部モデル90
に、図10に示すような吸収紙を重ねた生理用ナプキン
80を装着させ、ショーツをはかせた後、10歩/分
(50m/分)の歩行速度で1分間歩行させた。歩行
後、生理用ナプキン80と吸収紙10枚を取り出し、吸
収紙に吸収された脱繊維馬血の重量を液戻り量(g)と
して求めた。生理用ナプキン80は、10点について測
定し、その平均血を動的液戻り量とした。(2) Dynamic Liquid Return Amount As shown in FIG. 8, the test sanitary napkins 80 obtained in Examples and Comparative Examples are placed horizontally, and an acrylic plate having a 10 mm diameter inlet 81 is provided. Place 82. A weight 83 is further placed on the test sanitary napkin 80 so that a load of 5 g / cm 2 is applied. 10 g of defibrinated horse blood (manufactured by Japan Biotest Institute Co., Ltd.) is injected from the inlet 81, and after the liquid is completely injected, it is left for 20 minutes. Then 75
10 sheets of absorbent paper with a basis weight of 30 g / m 2 cut into cm width × 195 mm are stacked on the upper surface (skin contact surface side) of the sanitary napkin 80 for testing, and the movable female waist model 90 shown in FIG.
Then, a sanitary napkin 80 having absorbent paper as shown in FIG. 10 attached thereto was put on shorts, and then walked for 1 minute at a walking speed of 10 steps / minute (50 m / minute). After walking, the sanitary napkin 80 and 10 sheets of absorbent paper were taken out, and the weight of defibrinated horse blood absorbed in the absorbent paper was determined as the liquid return amount (g). The sanitary napkin 80 was measured at 10 points, and the average blood was used as the amount of dynamic fluid return.
【0062】(3)漏れ試験 実施例及び比較例で得られた試験用の生理用ナプキン8
0を、図10に示す如く、可動式女性腰部モデル90に
装着させ、ショーツをはかせた後、100歩/分(50
m/分)の歩行速度で10分間歩行させた。その後、チ
ューブ91によって、脱繊維馬血を歩行させながら3g
注入し、その後、同じ速度で10分間歩行させ、更に、
その後、脱繊維馬血を3g注入した後、10分間歩行さ
せ、更に、脱繊維馬血3g注入、10分間歩行を繰り返
し、それぞれの時点でサンプルを数10枚のうちの漏れ
が発生した枚数を数えた。(3) Leakage test The sanitary napkin 8 for the test obtained in the examples and comparative examples
0 is attached to the movable female waist model 90 as shown in FIG. 10, and shorts are put on, then 100 steps / min (50
They were allowed to walk for 10 minutes at a walking speed of (m / min). Then, 3g while walking the defibrinated horse blood with the tube 91
Infusion, then walk at the same speed for 10 minutes, then
Then, after injecting 3 g of defibrinated horse blood, walking for 10 minutes and further injecting 3 g of defibrinated horse blood and walking for 10 minutes were repeated, and at each time point, the number of leaked samples out of several tens of samples was measured. I counted.
【0063】表2の結果について、吸収時間と液拡がり
面積とについて考察すると、本発明品によれば、吸収時
間が13〜22秒、液拡がり面積が73〜85cm2 であ
り、両方について良好な結果を得ているのに対して、比
較品においては、吸収時間は15、17、18秒と比較
的良好なものもあるが、これらは液拡がり面積が28、
27、35cm2 と劣るものであり、比較品においては吸
収時間と液拡がり面積との両方を満たすことができな
い。次に、動的液戻り量については、本発明品が0.1
〜0.3gと良好であるのに対して比較品は0.7〜
1.2gと劣っているのが明らかである。また、漏れ回
数についても、液量が6g、9gにおいては、本発明品
では0〜3回と漏れ回数が少く、優れているのに対し
て、比較品では4〜10回と漏れ回数が多く、劣ってい
る。Considering the absorption time and the liquid spreading area in the results of Table 2, according to the product of the present invention, the absorption time is 13 to 22 seconds and the liquid spreading area is 73 to 85 cm 2. While the results have been obtained, the comparative products also have relatively good absorption times of 15, 17 and 18 seconds, but these have a liquid spreading area of 28,
It is inferior at 27 and 35 cm 2 , and the comparative product cannot satisfy both the absorption time and the liquid spreading area. Next, regarding the amount of dynamic liquid return, the product of the present invention is 0.1
~ 0.3g is good, while the comparative product is 0.7 ~
It is clear that it is inferior to 1.2 g. Also, regarding the number of leaks, when the liquid amount is 6 g and 9 g, the number of leaks is small as 0 to 3 times in the product of the present invention, which is excellent, whereas it is 4 to 10 times in the comparative product and large. , Inferior.
【0064】即ち、本発明の吸収性物品は、高吸収性ポ
リマーと高拡散で高透過性の吸収性シートとを複合させ
てあるがゆえに、吸収速度、拡散性、血液の液戻り量
(血液の保持性)の全てに優れた吸収性物品が得られて
おり、極めて漏れ発生数も少なく高吸収性能であること
が明らかである。更には、特定の極めて透過性の高い嵩
高な吸収性シートと組み合わせて吸収体を構成すること
により、極薄で極めて高吸収性で漏れの少ない、使用者
に更に快適な使用感を付与できる吸収性物品を提供でき
ることがわかる。That is, since the absorbent article of the present invention is a composite of a highly absorbent polymer and a highly diffusive and highly permeable absorbent sheet, it has an absorption rate, a diffusivity, and a return amount of blood (blood). It is clear that an absorbent article excellent in all of the above-mentioned retention properties) has been obtained, and that the number of occurrences of leakage is extremely small and that it has high absorption performance. Furthermore, by constructing the absorbent body in combination with a specific highly permeable and bulky absorbent sheet, it is possible to give the user a more comfortable feeling of use, which is extremely thin and has extremely high absorbency and little leakage. It can be seen that a sex article can be provided.
【0065】本発明は上述した実施例に限定されず、本
発明の要旨を逸脱しない範囲で種々変形可能である。例
えば、図3に示すように、高拡散性高透過性吸収シート
及び高吸収性ポリマーの他に他の部材2Fを有するもの
であってもよい。また、高吸収性ポリマーは、2枚の高
拡散高透過性吸収シート間に挟持されることに限らず、
一枚の高拡散高透過性吸収シートにより包むようにして
挟持するものであってもよい。The present invention is not limited to the above-mentioned embodiments, but can be variously modified without departing from the gist of the present invention. For example, as shown in FIG. 3, it may have another member 2F in addition to the highly diffusive and highly permeable absorbent sheet and the highly absorbent polymer. Further, the high-absorbent polymer is not limited to being sandwiched between two high-diffusion high-permeable absorbent sheets,
It may be sandwiched by wrapping it with one sheet of high diffusion and high permeability absorbent sheet.
【0066】[0066]
【発明の効果】本発明の吸収性物品は、高拡散性高透過
性の吸収性シートを用いることにより、高吸収性ポリマ
ーの効果を最大限発揮させ、吸収体からの液戻り、ベタ
ツキ、漏れを極めて低減させ、使用者が快適に使用でき
る吸収性物品を提供する。INDUSTRIAL APPLICABILITY The absorbent article of the present invention maximizes the effect of the superabsorbent polymer by using the highly diffusive and highly permeable absorbent sheet, and returns the liquid from the absorbent body, stickiness, and leakage. It is possible to provide an absorbent article that can be comfortably used by a user.
【0067】即ち、本発明は、吸収体に特定の組成から
なるシートの空間構造を制御した高拡散高透過性吸収シ
ートと高吸収性ポリマーとを用いているがゆえに、極め
て効果的に素早く吸収体全体に体液を拡げ、よりスムー
ズに高吸収性ポリマーへ体液を受け渡し、高吸収性ポリ
マーで体液を固めるために、従来にはない極めて高吸収
高保持性の吸収性物品を提供することができる。That is, according to the present invention, a highly diffused and highly permeable absorbent sheet in which the spatial structure of a sheet having a specific composition is controlled and a highly absorbent polymer are used in the absorber, and therefore, it is very effectively and quickly absorbed. Since the body fluid is spread over the entire body, the body fluid is more smoothly transferred to the superabsorbent polymer, and the body fluid is solidified with the superabsorbent polymer, it is possible to provide an absorbent article having an extremely high absorption and retention property which has never been available. .
【0068】更には、特定の極めて透過性の高い嵩高の
吸収性シートと組合せて吸収体を構成することにより、
表面シートを通過した体液を素早く嵩高の吸収シートが
吸収し、更に下層の高拡散高透過性吸収シートへよりス
ムーズに体液を透過させる。その後、高拡散高透過性吸
収シートで素早く吸収体全体に血液を拡げ、高吸収性ポ
リマーで体液を受け渡しするため、排泄された体液が高
吸収性ポリマーに吸収されるまでの液に移動経路を理想
化させることができ、更に極めて極薄でコンパクトな吸
収性物品を提供することができる。Furthermore, by constructing the absorbent body in combination with a specific highly permeable bulky absorbent sheet,
The bodily fluid that has passed through the topsheet is quickly absorbed by the bulky absorbent sheet, and the bodily fluid is more smoothly permeated to the highly diffused and highly permeable absorbent sheet in the lower layer. After that, the high diffusion and high permeability absorbent sheet quickly spreads the blood over the entire absorbent body, and the superabsorbent polymer transfers the body fluid.Therefore, the excreted body fluid has a transfer route to the fluid until it is absorbed by the superabsorbent polymer. It is possible to provide an absorbent article that can be idealized and that is extremely thin and compact.
【図1】本発明の吸収性物品及び比較品の一実施例であ
る生理用ナプキンの横方向の断面図である。FIG. 1 is a lateral cross-sectional view of a sanitary napkin, which is an embodiment of an absorbent article and a comparative product of the present invention.
【図2】本発明の他の実施例及び比較例を示す生理用ナ
プキンの横方向の断面図である。FIG. 2 is a cross-sectional view in the lateral direction of a sanitary napkin showing another embodiment and comparative example of the present invention.
【図3】本発明の更に他の実施例及び比較例を示す生理
用ナプキンの横方向の断面図である。FIG. 3 is a cross-sectional view in a lateral direction of a sanitary napkin showing still another example and comparative example of the present invention.
【図4】吸収性ポリマーシートの断面図である。FIG. 4 is a cross-sectional view of an absorbent polymer sheet.
【図5】生理用ナプキンの表面シートを拡大して示す斜
視図である。FIG. 5 is an enlarged perspective view showing a topsheet of a sanitary napkin.
【図6】クレム吸収高さの測定装置を示す斜視図であ
る。FIG. 6 is a perspective view showing a device for measuring a creme absorption height.
【図7】液通過時間の測定に用いられる装置の斜視図で
ある。FIG. 7 is a perspective view of an apparatus used for measuring a liquid passage time.
【図8】吸収時間及び動的液戻り測定に用いられる測定
装置を示す断面図である。FIG. 8 is a cross-sectional view showing a measuring device used for measuring absorption time and dynamic liquid return.
【図9】動的戻り量の測定及び漏れ試験に用いられる可
動式女性腰部モデルを示す斜視図である。FIG. 9 is a perspective view showing a movable female waist model used for dynamic return measurement and a leak test.
【図10】可動式女性腰部モデルに試験用の生理用ナプ
キンを装着させた状態を示す斜視図である。FIG. 10 is a perspective view showing a state in which a test female sanitary napkin is attached to a movable female waist model.
【図11】吸収性シート(A)の細孔径分布を示すグラ
フ図である。FIG. 11 is a graph showing the pore size distribution of the absorbent sheet (A).
【図12】吸収性シート(B)の細孔径分布を示すグラ
フ図である。FIG. 12 is a graph showing the pore size distribution of the absorbent sheet (B).
【図13】吸収性シート(C)の細孔径分布を示すグラ
フ図である。FIG. 13 is a graph showing the pore size distribution of the absorbent sheet (C).
【図14】吸収性シート(D)の細孔径分布を示すグラ
フ図である。FIG. 14 is a graph showing the pore size distribution of the absorbent sheet (D).
【図15】吸収性シート(E)の細孔径分布を示すグラ
フ図である。FIG. 15 is a graph showing the pore size distribution of the absorbent sheet (E).
【図16】吸収性シート(F)の細孔径分布を示すグラ
フ図である。FIG. 16 is a graph showing the pore size distribution of the absorbent sheet (F).
【図17】吸収性シート(G)の細孔径分布を示すグラ
フ図である。FIG. 17 is a graph showing the pore size distribution of the absorbent sheet (G).
1 表面材 2 吸収体 2A 高拡散高透過性吸収シート 2B 高吸収性ポリマー 2C 高透過性の嵩高シート 3 防漏材 1 Surface material 2 Absorber 2A Highly diffused and highly permeable absorbent sheet 2B Highly absorbent polymer 2C Highly permeable bulky sheet 3 Leak preventive material
【手続補正書】[Procedure amendment]
【提出日】平成5年10月29日[Submission date] October 29, 1993
【手続補正1】[Procedure Amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】請求項3[Name of item to be corrected] Claim 3
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【手続補正2】[Procedure Amendment 2]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】0008[Correction target item name] 0008
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【0008】特開昭54−158096号公報には、レ
ーヨンスパンボンド等のセルロース系の不織布間に、吸
収性ポリマーを挟持する技術が報告されている。この技
術においては、フラッフパルプを用いていないので、拡
散性とポリマーの吸収効率としては、多少なりとも改善
する方向にはあるものの満足なレベルではない。何故な
ら、単繊維からなる不織布吸収性シートの血液の拡散性
とポリマーの液移動抵抗を示す透過性は、相反する関係
にあるからである。液拡散性は、繊維径を小さくすれば
向上する傾向にあるが、逆に繊維間距離が減少するた
め、液透過性は悪化してしまう。逆に繊維径を大きくす
ると、透過性は向上するが、拡散性に劣ってしまう。Japanese Unexamined Patent Publication (Kokai) No. 54-158096 reports a technique of sandwiching an absorbent polymer between cellulosic nonwoven fabrics such as rayon spunbond. In this technique, since fluff pulp is not used, the diffusivity and the absorption efficiency of the polymer tend to be improved to some extent, but they are not at a satisfactory level. Why
Et permeability showing the liquid transfer resistance diffusivity and polymers of blood nonwoven absorbent sheet composed of a single fiber, since it is in inverse relationship. The liquid diffusivity tends to be improved by decreasing the fiber diameter, but conversely, the interfiber distance is reduced, so that the liquid permeability is deteriorated. On the contrary, when the fiber diameter is increased, the permeability is improved, but the diffusivity is deteriorated.
【手続補正3】[Procedure 3]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】0017[Correction target item name] 0017
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【0017】次に、上記吸収体の上記吸収性シートを構
成する熱溶融性接着繊維について説明する。上記熱溶融
性接着繊維としては、加熱することにより、繊維が溶融
し、相互に接着する繊維が用いられる。例えば、ポリエ
チレン、ポリプロピレン、ポリエステル、及びポリビニ
ルアルコール等のオレフィン繊維、ポリエチレン−ポリ
プロピレン複合繊維、ポリエチレン−ポリエステル複合
繊維、低融点ポリエステル−ポリエステル複合繊維及び
繊維表面が親水性であるポリビニルアルコール−ポリプ
ロピレン複合繊維、ポリビニルアルコール−ポリエステ
ル複合繊維がより好ましく用いることができる。熱溶融
性接着繊維の湿式不織布全体に対する混率としては、0
〜30重量部であり、好ましくは0〜20重量部であ
り、更に好ましくは2〜20重量部である。混率が30
重量部を越えると、吸収性シートの吸収性及び拡散性が
低下してしまい、好ましくないからである。Next, the heat-meltable adhesive fiber constituting the absorbent sheet of the absorbent body will be described. As the above-mentioned heat-meltable adhesive fibers, fibers that are melted by heating and adhere to each other are used. For example, olefin fibers such as polyethylene, polypropylene, polyester, and polyvinyl alcohol, polyethylene-polypropylene composite fibers, polyethylene-polyester composite fibers, low-melting polyester-polyester composite fibers, and polyvinyl alcohol-polypropylene composite fibers whose fiber surface is hydrophilic, A polyvinyl alcohol-polyester composite fiber can be more preferably used. The mixing ratio of the heat-meltable adhesive fiber to the whole wet non-woven fabric is 0.
30 parts by weight, preferably 0 to 20 wt parts der
And more preferably 2 to 20 parts by weight . Mixing ratio is 30
This is because if it exceeds the weight part, the absorptivity and the diffusivity of the absorptive sheet deteriorate, which is not preferable.
【手続補正4】[Procedure amendment 4]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】0022[Name of item to be corrected] 0022
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【0022】吸収性シートの全細孔表面積が1.0m2
/g未満、もしくは空間径0.003〜1μmの細孔表
面積の割合が50%未満になると目的とする拡散性が充
分に得られず好ましくなく、80%より多いと、微細領
域の表面積が大きくなりすぎ、透過性が不十分となる。
また、空間径10〜200μm領域の細孔表面積の割合
が18%未満になると目的とする透過性が充分に得られ
ず、35%より多いと逆に拡散性が不十分となる。The total pore surface area of the absorbent sheet is 1.0 m 2
/ G or the ratio of the pore surface area with a space diameter of 0.003 to 1 μm is less than 50%, the desired diffusivity cannot be obtained, which is not preferable. When it is more than 80%, the surface area of the fine region is large. Too much, resulting in insufficient transparency.
If the ratio of the pore surface area in the space diameter range of 10 to 200 μm is less than 18 %, the desired permeability cannot be obtained sufficiently, and if it exceeds 35%, the diffusivity is insufficient.
【手続補正5】[Procedure Amendment 5]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】0033[Correction target item name] 0033
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【0033】〔吸収性シート(F)〕0.7デニール、
長さ38mmのレーヨンステープル(ダイワボウレーヨン
(株))をウォータージェットにより繊維をからませて
得た。坪量40g/m2 のスパンボンド不織布を、吸収
性シートFとした。この吸収性シート(F)では、嵩高
性の親水性繊維が混合されていない。[Absorbent sheet (F)] 0.7 denier,
A 38 mm long rayon staple (Daiwa Bow Rayon Co., Ltd.) was obtained by entanglement of fibers with a water jet. A spunbonded nonwoven fabric having a basis weight of 40 g / m 2 was used as the absorbent sheet F. In the absorbent sheet (F), bulkiness of the hydrophilic fibers is not mixed.
【手続補正6】[Procedure correction 6]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】0046[Correction target item name] 0046
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【0046】実施例1 図1に示す如く、長さ195mm、幅75mmの吸収保持ポ
リマーシート2Eとして吸収保持ポリマーシート(A)
を用い、さらに、嵩高性の親水性繊維として、繊維断面
積が3.8×10-6cm2 で繊維断面の真円度が0.80
のマーセル化パルプ(商品名;ポロセニアーJ、ITT RA
Y ONIER INC.)70重量部、及び繊維断面積が5.9×
10-6cm2 繊維断面の真円度が0.68で長さが8mmの
レーヨン(商品名;コロナSBレーヨン、ダイワボウレ
ーヨン(株))20重量部、熱溶融性接着繊維として、
ポリビニルアルコール(商品名;フィブリボンド、三昌
(株))5重量部、その他の成分としてクラフトパルプ
NBKP(商品名;SKEENAPRIME、Skeena Cekkukose C
O.)10重量部をそれぞれ水中に分散し、これらを抄紙
し、乾燥した後、坪量30g/m2 に抄紙した嵩高高透
過性吸収シート(2C)を長さ195mm、幅170mmに
カットし、吸収体を構成した。尚、この嵩高高透過性吸
収シートは、2.5g/cm2 荷重時の厚み0.39mmで
あり、生理食塩水に対する1分後の吸収高さ35mm、1
0分後の吸収高さ50mmであり、グリセリン85%水溶
液10gの通過時間が25秒の吸収性シートであった。
得られた吸収体2をポリラミ防水紙3(長さ225mm、
幅95mm)で巻き上げ、更に長さ225mm、幅172mm
の表面シート1として表面シート(A)を用い、及びズ
レ止めテープ4を用い図1に示す構成により、生理用ナ
プキンを作成した。尚、図1中、符号6は固定用接着
在、5は剥離紙である。Example 1 As shown in FIG. 1, the absorption-holding polymer sheet (A) was used as an absorption-holding polymer sheet 2E having a length of 195 mm and a width of 75 mm.
In addition, as the bulky hydrophilic fiber, the fiber cross-sectional area is 3.8 × 10 −6 cm 2 and the roundness of the fiber cross-section is 0.80.
Mercerized pulp (trade name: Porose two Ah J, ITT RA
Y ONIER INC.) 70 parts by weight and fiber cross-sectional area of 5.9 ×
10 -6 cm 2 roundness of the fiber cross section length 0.68 of 8mm rayon (trade name: Corona SB Rayon, Daiwabo Rayon Co.) 20 parts by weight, as the heat fusible bonding fibers,
Polyvinyl alcohol (trade name: Fibribond, Sansho Co., Ltd.) 5 parts by weight, kraft pulp NBKP (trade name: SKEENAPRIME, Skeena Cekkukose C) as other components
O.) 10 parts by weight of each was dispersed in water, papermaking them, drying them, and cutting the bulky high-permeability absorbent sheet (2C) having a basis weight of 30 g / m 2 into a length of 195 mm and a width of 170 mm. , Constituted the absorber. This bulky and highly permeable absorbent sheet had a thickness of 0.39 mm under a load of 2.5 g / cm 2 , and had an absorption height of 35 mm after 1 minute against physiological saline solution.
It was an absorbent sheet having an absorption height of 50 mm after 0 minutes and having a passage time of 25 seconds for 10 g of an 85% glycerin aqueous solution.
The absorbent body 2 thus obtained was used as a poly-laminar waterproof paper 3 (length: 225 mm,
Roll up with a width of 95 mm), length 225 mm, width 172 mm
A sanitary napkin was prepared by using the topsheet (A) as the topsheet 1 and the slip-preventing tape 4 with the configuration shown in FIG. In FIG. 1, reference numeral 6 is a fixing adhesive, and 5 is a release paper.
Claims (9)
体、及び液体不透過性の防漏材を有する実質的に縦長の
吸収性物品において、 上記吸収体は、少なくとも一部として、高拡散高透過性
吸収シートと高吸収性ポリマーとを備え、該高拡散高透
過性吸収シートは、少なくとも、 (a) 嵩高性の親水性繊維;20〜80重量部 (b) 親水性微細繊維;80〜20重量部 (c) 熱溶融性接着繊維;0〜30重量部 を混合して抄紙した湿式不織布からなり、2.5g/cm
2 荷重下において0.3〜2.0mmの厚さを有すること
を特徴とする請求項1記載の吸収性物品。1. A substantially vertical absorbent article having a liquid-permeable surface material, a liquid-retaining absorber, and a liquid-impermeable leak preventer, wherein the absorber is at least partially A high-diffusion high-permeability absorbent sheet and a high-absorbency polymer, wherein the high-diffusion high-permeability absorbent sheet comprises at least (a) a bulky hydrophilic fiber; 20 to 80 parts by weight (b) a hydrophilic fine fiber. 80 to 20 parts by weight (c) heat-meltable adhesive fiber; composed of a wet non-woven fabric prepared by mixing 0 to 30 parts by weight, 2.5 g / cm
The absorbent article according to claim 1, which has a thickness of 0.3 to 2.0 mm under two loads.
透過性吸収シートの間に挟持されていることを特徴とす
る請求項1記載の吸収性物品。2. The absorbent article according to claim 1, wherein the superabsorbent polymer is sandwiched between the highly diffused and highly permeable absorbent sheets.
ロシメーターによる空間径が0.003〜200μmま
での空間径分布測定において、全細孔表面積が1.0m
2 /g以上であり、空間径0.003〜1μm領域の細
孔表面積が全細孔表面積の50〜80%であり且つ空間
径10〜200μm領域の細孔表面積が全細孔表面積の
20〜35%であることを特徴とする請求項1又は2記
載の吸収性物品。3. The total pore surface area is 1.0 m in a space diameter distribution measurement of the high diffusion high permeability absorbent sheet with a mercury porosimeter having a space diameter of 0.003 to 200 μm.
2 / g or more, the pore surface area in the space diameter 0.003 to 1 μm region is 50 to 80% of the total pore surface area, and the pore surface area in the space diameter 10 to 200 μm region is 20 to 20% of the total pore surface area. 35%, The absorbent article of Claim 1 or 2 characterized by the above-mentioned.
食塩水に対する1分後のクレム吸収高さが50mm以上且
つ10分後のクレム吸収高さが100mm以上であること
を特徴とする請求項1〜3記載の吸収性物品。4. The high diffusion and high permeability absorbent sheet is characterized in that the creme absorption height after 1 minute with respect to physiological saline is 50 mm or more and the creme absorption height after 10 minutes is 100 mm or more. Item 3. The absorbent article according to items 1 to 3.
セリン85重量%水溶液の10gの通過時間(所定の測
定方法による)が、100秒以下であることを特徴とす
る請求項1〜4記載の吸収性物品。5. The high-diffusion high-permeability absorbent sheet according to claim 1, wherein a passage time of 10 g of an aqueous 85% by weight glycerin solution (according to a predetermined measuring method) is 100 seconds or less. Absorbent article.
3.0×10-6cm2以上で且つ断面の真円度が0.5以
上であることを特徴とする請求項1〜5記載の吸収性物
品。6. The bulky hydrophilic fiber has a fiber cross-sectional area of 3.0 × 10 −6 cm 2 or more and a circularity of the cross-section of 0.5 or more. The absorbent article described.
積が5.0×10-6cm2 以上であることを特徴とする請
求項1〜5記載の吸収性物品。7. The absorbent article according to claim 1, wherein the bulky hydrophilic fiber has a fiber cross-sectional area of 5.0 × 10 −6 cm 2 or more.
積が2.0×10-6cm2 以下で且つ断面の真円度が0.
5未満であることを特徴とする請求項1〜7記載の吸収
性物品。8. The hydrophilic fine fiber has a fiber cross-sectional area of 2.0 × 10 −6 cm 2 or less and a circularity of the cross section of 0.
It is less than 5, The absorbent article of Claims 1-7 characterized by the above-mentioned.
ートを設置し、さらに、その下層側に上記高拡散高透過
性吸収シートと上記高吸収性ポリマーを設置して構成す
る吸収体において、該高透過性の嵩高シートは、少なく
とも (a) 嵩高性の親水性繊維;30〜98重量部 (b) 熱溶融性接着繊維;2〜30重量部 を混合して抄紙して造られており、2.5g/cm2 荷重
下において0.3〜2.0mmの厚さを有し、生理食塩水
に対する1分後のクレム吸収高さが20〜80mm且つ1
0分後のクレム吸収高さが30〜100mmであり、グリ
セリン85重量%水溶液の10gの通過時間が10〜5
0秒であることを特徴とする請求項1〜8記載の吸収性
物品。9. An absorbent body comprising a highly permeable bulky sheet provided on the uppermost layer of the absorbent body, and the highly diffusive highly permeable absorbent sheet and the highly absorbent polymer provided on the lower layer side thereof. In the above, the high-permeability bulky sheet is produced by mixing at least (a) bulky hydrophilic fiber; 30 to 98 parts by weight (b) heat-melting adhesive fiber; Has a thickness of 0.3 to 2.0 mm under a load of 2.5 g / cm 2 and has a creme absorption height of 1 to 1 minute in physiological saline of 20 to 80 mm and 1
The creme absorption height after 0 minutes is 30 to 100 mm, and the passage time of 10 g of an 85% by weight aqueous glycerin solution is 10 to 5 mm.
It is 0 second, The absorbent article of Claims 1-8 characterized by the above-mentioned.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4205125A JP2702852B2 (en) | 1992-07-31 | 1992-07-31 | Absorbent articles |
GB9314172A GB2269109B (en) | 1992-07-31 | 1993-07-08 | Absorbent article |
MYPI93001377A MY109221A (en) | 1992-07-31 | 1993-07-14 | Absorbent article |
HK120396A HK120396A (en) | 1992-07-31 | 1996-07-11 | Absorbent article |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4205125A JP2702852B2 (en) | 1992-07-31 | 1992-07-31 | Absorbent articles |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0670953A true JPH0670953A (en) | 1994-03-15 |
JP2702852B2 JP2702852B2 (en) | 1998-01-26 |
Family
ID=16501846
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4205125A Expired - Lifetime JP2702852B2 (en) | 1992-07-31 | 1992-07-31 | Absorbent articles |
Country Status (4)
Country | Link |
---|---|
JP (1) | JP2702852B2 (en) |
GB (1) | GB2269109B (en) |
HK (1) | HK120396A (en) |
MY (1) | MY109221A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4893044A (en) * | 1987-11-20 | 1990-01-09 | Copeland Corporation | Rotor balancing |
JPH09187476A (en) * | 1996-01-10 | 1997-07-22 | Kao Corp | Absorptive article |
US5865822A (en) * | 1993-12-28 | 1999-02-02 | Kao Corporation | Crosslinked cellulose fibers, absorbent papers and absorbent members using the same, topsheets using the same, and absorbent articles using the same |
JP2007061464A (en) * | 2005-09-01 | 2007-03-15 | Fukoku:Kk | Incontinence pad |
JP2009240816A (en) * | 2000-04-11 | 2009-10-22 | Kao Corp | Absorbent article |
WO2022145231A1 (en) * | 2020-12-29 | 2022-07-07 | ユニ・チャーム株式会社 | Composite absorbent and sanitary material |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0724420B1 (en) * | 1993-10-21 | 2000-02-09 | The Procter & Gamble Company | Catamenial absorbent structures |
IT1261155B (en) * | 1993-12-31 | 1996-05-09 | P & G Spa | STRATIFIED ABSORBENT STRUCTURE, ABSORBENT ITEM INCLUDING SUCH STRUCTURE AND METHOD FOR ITS REALIZATION. |
CA2225467C (en) * | 1994-06-30 | 2004-11-09 | Kimberly-Clark Worldwide, Inc. | Thermoplastic fibrous nonwoven webs for use as core wraps in absorbent articles |
MY116007A (en) † | 1994-12-28 | 2003-10-31 | Kao Corp | Absorbent sheet, process for producing the same and absorbent article |
US5549589A (en) * | 1995-02-03 | 1996-08-27 | The Procter & Gamble Company | Fluid distribution member for absorbent articles exhibiting high suction and high capacity |
US5803920A (en) * | 1995-06-07 | 1998-09-08 | Kimberly-Clark Worldwide, Inc. | Thin absorbent article |
CN1095644C (en) * | 1995-08-28 | 2002-12-11 | 金伯利-克拉克环球有限公司 | Thermoplastic fibrous nonwoven webs for use as core wraps in absorbent articles |
EP0847263B2 (en) * | 1995-08-28 | 2011-03-09 | Kimberly-Clark Worldwide, Inc. | Thermoplastic fibrous nonwoven webs for use as core wraps in absorbent articles |
US6060638A (en) | 1995-12-22 | 2000-05-09 | Kimberly-Clark Worldwide, Inc. | Matched permeability liner/absorbent structure system for absorbent articles and the like |
US5800416A (en) * | 1996-04-17 | 1998-09-01 | The Procter & Gamble Company | High capacity fluid absorbent members |
US5843055A (en) * | 1996-07-24 | 1998-12-01 | The Procter & Gamble Company | Stratified, multi-functional fluid absorbent members |
US5820973A (en) | 1996-11-22 | 1998-10-13 | Kimberly-Clark Worldwide, Inc. | Heterogeneous surge material for absorbent articles |
US5843063A (en) | 1996-11-22 | 1998-12-01 | Kimberly-Clark Worldwide, Inc. | Multifunctional absorbent material and products made therefrom |
US5879343A (en) | 1996-11-22 | 1999-03-09 | Kimberly-Clark Worldwide, Inc. | Highly efficient surge material for absorbent articles |
AU1862400A (en) * | 1999-12-03 | 2001-06-12 | Korma S.P.A. | Intermediate absorbent structure with integrated particle barrier |
PL363038A1 (en) | 2002-02-04 | 2004-11-15 | Nippon Shokubai Co, Ltd. | Absorptive material, method for producing the same and absorptive article using the same |
KR101537137B1 (en) * | 2008-07-11 | 2015-07-15 | 스미또모 세이까 가부시키가이샤 | Water-absorbent sheet composition |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4865596A (en) * | 1987-09-01 | 1989-09-12 | The Procter & Gamble Company | Composite absorbent structures and absorbent articles containing such structures |
US4923454A (en) * | 1988-01-20 | 1990-05-08 | The Procter & Gamble Company | Microfiber-containing absorbent structures and absorbent articles |
-
1992
- 1992-07-31 JP JP4205125A patent/JP2702852B2/en not_active Expired - Lifetime
-
1993
- 1993-07-08 GB GB9314172A patent/GB2269109B/en not_active Expired - Fee Related
- 1993-07-14 MY MYPI93001377A patent/MY109221A/en unknown
-
1996
- 1996-07-11 HK HK120396A patent/HK120396A/en not_active IP Right Cessation
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4893044A (en) * | 1987-11-20 | 1990-01-09 | Copeland Corporation | Rotor balancing |
AU612175B2 (en) * | 1987-11-20 | 1991-07-04 | Emerson Climate Technologies, Inc. | Rotor balancing |
US5865822A (en) * | 1993-12-28 | 1999-02-02 | Kao Corporation | Crosslinked cellulose fibers, absorbent papers and absorbent members using the same, topsheets using the same, and absorbent articles using the same |
US6068619A (en) * | 1993-12-28 | 2000-05-30 | Kao Corporation | Crosslinked cellulose fibers, absorbent papers and absorbent members using the same, topsheets using the same, and absorbent articles using the same |
JPH09187476A (en) * | 1996-01-10 | 1997-07-22 | Kao Corp | Absorptive article |
JP2009240816A (en) * | 2000-04-11 | 2009-10-22 | Kao Corp | Absorbent article |
JP2007061464A (en) * | 2005-09-01 | 2007-03-15 | Fukoku:Kk | Incontinence pad |
WO2022145231A1 (en) * | 2020-12-29 | 2022-07-07 | ユニ・チャーム株式会社 | Composite absorbent and sanitary material |
Also Published As
Publication number | Publication date |
---|---|
GB9314172D0 (en) | 1993-08-18 |
HK120396A (en) | 1996-07-19 |
JP2702852B2 (en) | 1998-01-26 |
GB2269109B (en) | 1996-01-10 |
GB2269109A (en) | 1994-02-02 |
MY109221A (en) | 1996-12-31 |
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