CA2391528A1 - Absorbent cores with y-density gradient - Google Patents
Absorbent cores with y-density gradient Download PDFInfo
- Publication number
- CA2391528A1 CA2391528A1 CA002391528A CA2391528A CA2391528A1 CA 2391528 A1 CA2391528 A1 CA 2391528A1 CA 002391528 A CA002391528 A CA 002391528A CA 2391528 A CA2391528 A CA 2391528A CA 2391528 A1 CA2391528 A1 CA 2391528A1
- Authority
- CA
- Canada
- Prior art keywords
- stratum
- zone
- fibers
- absorbent
- functional particles
- 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.)
- Abandoned
Links
- 230000002745 absorbent Effects 0.000 title claims abstract description 278
- 239000002250 absorbent Substances 0.000 title claims abstract description 278
- 239000002245 particle Substances 0.000 claims abstract description 147
- 238000000034 method Methods 0.000 claims abstract description 51
- 239000000835 fiber Substances 0.000 claims description 195
- 239000000463 material Substances 0.000 claims description 104
- 239000012530 fluid Substances 0.000 claims description 67
- 239000011230 binding agent Substances 0.000 claims description 65
- 239000007788 liquid Substances 0.000 claims description 30
- 230000008569 process Effects 0.000 claims description 30
- 239000004816 latex Substances 0.000 claims description 21
- 229920000126 latex Polymers 0.000 claims description 21
- 238000003860 storage Methods 0.000 claims description 20
- 229920001169 thermoplastic Polymers 0.000 claims description 19
- 239000004416 thermosoftening plastic Substances 0.000 claims description 19
- 238000010977 unit operation Methods 0.000 claims description 17
- 238000004519 manufacturing process Methods 0.000 claims description 15
- 239000000203 mixture Substances 0.000 claims description 15
- 229920002994 synthetic fiber Polymers 0.000 claims description 14
- 239000012209 synthetic fiber Substances 0.000 claims description 14
- 230000000903 blocking effect Effects 0.000 claims description 13
- 239000000843 powder Substances 0.000 claims description 13
- 206010021639 Incontinence Diseases 0.000 claims description 12
- 238000004891 communication Methods 0.000 claims description 9
- 239000011159 matrix material Substances 0.000 claims description 9
- 238000000151 deposition Methods 0.000 claims description 8
- 230000008021 deposition Effects 0.000 claims description 7
- 238000009826 distribution Methods 0.000 claims description 6
- 239000000654 additive Substances 0.000 claims description 5
- 238000012549 training Methods 0.000 claims description 3
- 229920000247 superabsorbent polymer Polymers 0.000 abstract description 88
- 239000000523 sample Substances 0.000 description 144
- 239000011162 core material Substances 0.000 description 119
- 238000012360 testing method Methods 0.000 description 49
- 239000000047 product Substances 0.000 description 44
- -1 polyethylene Polymers 0.000 description 22
- 210000001519 tissue Anatomy 0.000 description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 20
- 239000000123 paper Substances 0.000 description 18
- 239000006260 foam Substances 0.000 description 17
- 229920003043 Cellulose fiber Polymers 0.000 description 16
- 241000157282 Aesculus Species 0.000 description 13
- 235000010181 horse chestnut Nutrition 0.000 description 13
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 12
- 229920002678 cellulose Polymers 0.000 description 10
- 239000001913 cellulose Substances 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 10
- 239000000499 gel Substances 0.000 description 9
- 230000014759 maintenance of location Effects 0.000 description 9
- 229920003023 plastic Polymers 0.000 description 9
- 239000004033 plastic Substances 0.000 description 9
- 230000006870 function Effects 0.000 description 8
- 239000004743 Polypropylene Substances 0.000 description 7
- 229920000728 polyester Polymers 0.000 description 7
- 229920000642 polymer Polymers 0.000 description 7
- 229920001155 polypropylene Polymers 0.000 description 7
- 239000002994 raw material Substances 0.000 description 7
- 239000007787 solid Substances 0.000 description 7
- 239000007921 spray Substances 0.000 description 7
- 239000004698 Polyethylene Substances 0.000 description 6
- 238000005259 measurement Methods 0.000 description 6
- 229920000573 polyethylene Polymers 0.000 description 6
- 239000011148 porous material Substances 0.000 description 6
- 238000013461 design Methods 0.000 description 5
- 230000004438 eyesight Effects 0.000 description 5
- 230000035699 permeability Effects 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 239000004583 superabsorbent polymers (SAPs) Substances 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 4
- 238000005056 compaction Methods 0.000 description 4
- 238000004132 cross linking Methods 0.000 description 4
- 239000003431 cross linking reagent Substances 0.000 description 4
- 238000000280 densification Methods 0.000 description 4
- 239000000839 emulsion Substances 0.000 description 4
- 239000008187 granular material Substances 0.000 description 4
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 4
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 4
- 230000002829 reductive effect Effects 0.000 description 4
- 230000011218 segmentation Effects 0.000 description 4
- 239000011122 softwood Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000004094 surface-active agent Substances 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- 229920002472 Starch Polymers 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000003490 calendering Methods 0.000 description 3
- 229920002301 cellulose acetate Polymers 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 3
- 239000008367 deionised water Substances 0.000 description 3
- 229910021641 deionized water Inorganic materials 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000011049 filling Methods 0.000 description 3
- 230000002175 menstrual effect Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 229920000867 polyelectrolyte Polymers 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 230000000717 retained effect Effects 0.000 description 3
- 239000008107 starch Substances 0.000 description 3
- 235000019698 starch Nutrition 0.000 description 3
- 229920013683 Celanese Polymers 0.000 description 2
- 229920001661 Chitosan Polymers 0.000 description 2
- 229920002085 Dialdehyde starch Polymers 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 2
- BRLQWZUYTZBJKN-UHFFFAOYSA-N Epichlorohydrin Chemical class ClCC1CO1 BRLQWZUYTZBJKN-UHFFFAOYSA-N 0.000 description 2
- 108010076876 Keratins Proteins 0.000 description 2
- 102000011782 Keratins Human genes 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 2
- 229920001131 Pulp (paper) Polymers 0.000 description 2
- 229920000297 Rayon Polymers 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- VVAVKBBTPWYADW-RVTJCSDESA-L biebrich scarlet Chemical compound [Na+].[Na+].OC1=CC=C2C=CC=CC2=C1\N=N\C(C(=C1)S([O-])(=O)=O)=CC=C1\N=N\C1=CC=C(S([O-])(=O)=O)C=C1 VVAVKBBTPWYADW-RVTJCSDESA-L 0.000 description 2
- 210000001124 body fluid Anatomy 0.000 description 2
- 239000010839 body fluid Substances 0.000 description 2
- 239000007767 bonding agent Substances 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L calcium carbonate Substances [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 125000002091 cationic group Chemical group 0.000 description 2
- 238000012669 compression test Methods 0.000 description 2
- 230000001143 conditioned effect Effects 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000000975 dye Substances 0.000 description 2
- 239000002657 fibrous material Substances 0.000 description 2
- 229920001821 foam rubber Polymers 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000017 hydrogel Substances 0.000 description 2
- 230000002209 hydrophobic effect Effects 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 239000002655 kraft paper Substances 0.000 description 2
- 229920005610 lignin Polymers 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000005517 mercerization Methods 0.000 description 2
- 229920000058 polyacrylate Polymers 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 239000004417 polycarbonate Substances 0.000 description 2
- 229920000515 polycarbonate Polymers 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 229920000098 polyolefin Polymers 0.000 description 2
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 2
- 239000002964 rayon Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 239000011800 void material Substances 0.000 description 2
- 229920003169 water-soluble polymer Polymers 0.000 description 2
- KWSLGOVYXMQPPX-UHFFFAOYSA-N 5-[3-(trifluoromethyl)phenyl]-2h-tetrazole Chemical compound FC(F)(F)C1=CC=CC(C2=NNN=N2)=C1 KWSLGOVYXMQPPX-UHFFFAOYSA-N 0.000 description 1
- 241000609240 Ambelania acida Species 0.000 description 1
- 244000025254 Cannabis sativa Species 0.000 description 1
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 description 1
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 description 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- 229920002101 Chitin Polymers 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 229920000875 Dissolving pulp Polymers 0.000 description 1
- 244000166124 Eucalyptus globulus Species 0.000 description 1
- 108010010803 Gelatin Chemical class 0.000 description 1
- 229920006385 Geon Polymers 0.000 description 1
- 229920013646 Hycar Polymers 0.000 description 1
- 240000006240 Linum usitatissimum Species 0.000 description 1
- 235000004431 Linum usitatissimum Nutrition 0.000 description 1
- 229920000881 Modified starch Polymers 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000004599 antimicrobial Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000010905 bagasse Substances 0.000 description 1
- 235000010216 calcium carbonate Nutrition 0.000 description 1
- 235000009120 camo Nutrition 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 125000002057 carboxymethyl group Chemical group [H]OC(=O)C([H])([H])[*] 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 238000009960 carding Methods 0.000 description 1
- 229920006317 cationic polymer Polymers 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 235000005607 chanvre indien Nutrition 0.000 description 1
- 238000012993 chemical processing Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 239000013068 control sample Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 210000004177 elastic tissue Anatomy 0.000 description 1
- NPERTKSDHFSDLC-UHFFFAOYSA-N ethenol;prop-2-enoic acid Chemical compound OC=C.OC(=O)C=C NPERTKSDHFSDLC-UHFFFAOYSA-N 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012632 extractable Substances 0.000 description 1
- 210000000416 exudates and transudate Anatomy 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 210000003746 feather Anatomy 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 239000008273 gelatin Chemical class 0.000 description 1
- 229920000159 gelatin Chemical class 0.000 description 1
- 235000019322 gelatine Nutrition 0.000 description 1
- 235000011852 gelatine desserts Nutrition 0.000 description 1
- 239000011121 hardwood Substances 0.000 description 1
- 239000011487 hemp Substances 0.000 description 1
- 238000003703 image analysis method Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 235000019426 modified starch Nutrition 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 229920005615 natural polymer Polymers 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920002239 polyacrylonitrile Polymers 0.000 description 1
- 229920000768 polyamine Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 238000011176 pooling Methods 0.000 description 1
- 239000001044 red dye Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- APSBXTVYXVQYAB-UHFFFAOYSA-M sodium docusate Chemical compound [Na+].CCCCC(CC)COC(=O)CC(S([O-])(=O)=O)C(=O)OCC(CC)CCCC APSBXTVYXVQYAB-UHFFFAOYSA-M 0.000 description 1
- 229910001379 sodium hypophosphite Inorganic materials 0.000 description 1
- 239000012798 spherical particle Substances 0.000 description 1
- 239000004834 spray adhesive Substances 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- 230000008685 targeting Effects 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- 210000002700 urine Anatomy 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/53—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
- A61F13/531—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 a homogeneous composition through the thickness of the pad
- A61F13/532—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 a homogeneous composition through the thickness of the pad inhomogeneous in the plane of the pad
- A61F13/5323—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 a homogeneous composition through the thickness of the pad inhomogeneous in the plane of the pad having absorbent material located in discrete regions, e.g. pockets
-
- 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
- A61F13/15577—Apparatus or processes for manufacturing
- A61F13/15617—Making absorbent pads from fibres or pulverulent material with or without treatment of the 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
- 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
- A61F13/535—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 inhomogeneous in the plane of the pad, e.g. core absorbent layers being of different sizes
-
- 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
- A61F13/535—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 inhomogeneous in the plane of the pad, e.g. core absorbent layers being of different sizes
- A61F13/536—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 inhomogeneous in the plane of the pad, e.g. core absorbent layers being of different sizes having discontinuous areas of compression
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Epidemiology (AREA)
- Biomedical Technology (AREA)
- Veterinary Medicine (AREA)
- Manufacturing & Machinery (AREA)
- Absorbent Articles And Supports Therefor (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Laminated Bodies (AREA)
Applications Claiming Priority (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US16648999P | 1999-11-19 | 1999-11-19 | |
| US60/166,489 | 1999-11-19 | ||
| US21109100P | 2000-06-12 | 2000-06-12 | |
| US21109000P | 2000-06-12 | 2000-06-12 | |
| US60/211,091 | 2000-06-12 | ||
| US60/211,090 | 2000-06-12 | ||
| PCT/US2000/031627 WO2001035886A1 (en) | 1999-11-19 | 2000-11-17 | Absorbent cores with y-density gradient |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2391528A1 true CA2391528A1 (en) | 2001-05-25 |
Family
ID=27389277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002391528A Abandoned CA2391528A1 (en) | 1999-11-19 | 2000-11-17 | Absorbent cores with y-density gradient |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP1242017A1 (de) |
| AR (1) | AR026549A1 (de) |
| AU (1) | AU1619201A (de) |
| CA (1) | CA2391528A1 (de) |
| CO (1) | CO5200786A1 (de) |
| MX (1) | MXPA02005020A (de) |
| PE (1) | PE20010655A1 (de) |
| TW (1) | TW567061B (de) |
| WO (1) | WO2001035886A1 (de) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4233816A4 (de) * | 2020-12-01 | 2024-04-17 | Zuiko Corporation | Verfahren zur herstellung eines wearable-artikels |
| EP4233818A4 (de) * | 2020-12-01 | 2024-04-17 | Zuiko Corporation | Trageartikel |
Families Citing this family (43)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1455699A2 (de) * | 2001-12-20 | 2004-09-15 | Kimberly-Clark Worldwide, Inc. | Absorbierender artikel mit stabilisierter absorbierender struktur |
| US20030119406A1 (en) | 2001-12-20 | 2003-06-26 | Abuto Francis Paul | Targeted on-line stabilized absorbent structures |
| US6890622B2 (en) | 2001-12-20 | 2005-05-10 | Kimberly-Clark Worldwide, Inc. | Composite fluid distribution and fluid retention layer having selective material deposition zones for personal care products |
| US20030118764A1 (en) * | 2001-12-20 | 2003-06-26 | Adams Ricky Alton | Composite fluid distribution and fluid retention layer having machine direction zones and Z-direction gradients for personal care products |
| US20050153615A1 (en) * | 2002-01-18 | 2005-07-14 | Dutkiewicz Jacek K. | Fibrous material with high functional particle load |
| US6808485B2 (en) | 2002-12-23 | 2004-10-26 | Kimberly-Clark Worldwide, Inc. | Compressible resilient incontinence insert |
| ATE523180T1 (de) | 2003-02-12 | 2011-09-15 | Procter & Gamble | Saugfähiger kern für einen saugfähigen artikel |
| ES2428693T3 (es) | 2003-02-12 | 2013-11-08 | The Procter & Gamble Company | Núcleo absorbente para un artículo absorbente |
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| US20100036348A1 (en) * | 2008-08-05 | 2010-02-11 | Antonio Carlos Ribeiro De Carvalho | Absorbent article including absorbent core having a plurality of first regions and a second region surrounding each of the first regions |
| DE102011015304A1 (de) | 2011-03-24 | 2012-09-27 | Gt Elektrotechnische Produkte Gmbh | Neue Gradientenpolymere und Verfahren zu ihrer Herstellung |
| PL3338750T5 (pl) | 2011-06-10 | 2023-10-09 | The Procter & Gamble Company | Struktura chłonna do wyrobów chłonnych |
| CA2838980A1 (en) | 2011-06-10 | 2012-12-13 | The Procter & Gamble Company | Absorbent core for disposable absorbent articles |
| CN105816277A (zh) | 2011-06-10 | 2016-08-03 | 宝洁公司 | 一次性尿布 |
| BR112013030593B1 (pt) | 2011-06-10 | 2021-02-17 | The Procter & Gamble Company | estrutura absorvente para artigos absorventes |
| RU2635070C2 (ru) | 2012-11-13 | 2017-11-08 | Дзе Проктер Энд Гэмбл Компани | Абсорбирующие изделия с каналами и знаками |
| EP2740449B1 (de) | 2012-12-10 | 2019-01-23 | The Procter & Gamble Company | Saugfähiger artikel mit hohem anteil an absorptionsmaterial |
| EP2740450A1 (de) | 2012-12-10 | 2014-06-11 | The Procter & Gamble Company | Saugfähiger Artikel mit hohem Anteil an Superabsorptionsmaterial |
| EP2740452B1 (de) | 2012-12-10 | 2021-11-10 | The Procter & Gamble Company | Saugfähiger Artikel mit hohem Anteil an Absorptionsmaterial |
| EP2813201B1 (de) | 2013-06-14 | 2017-11-01 | The Procter and Gamble Company | Saugfähiger Artikel und saugfähiger Kern mit Kanalformung bei Nässe |
| US9789011B2 (en) | 2013-08-27 | 2017-10-17 | The Procter & Gamble Company | Absorbent articles with channels |
| US9987176B2 (en) | 2013-08-27 | 2018-06-05 | The Procter & Gamble Company | Absorbent articles with channels |
| CN105555243A (zh) | 2013-09-16 | 2016-05-04 | 宝洁公司 | 带有通道和信号的吸收制品 |
| US11207220B2 (en) | 2013-09-16 | 2021-12-28 | The Procter & Gamble Company | Absorbent articles with channels and signals |
| EP3351225B1 (de) | 2013-09-19 | 2021-12-29 | The Procter & Gamble Company | Absorbierende kerne mit materialfreien bereichen |
| US9572729B2 (en) | 2013-09-30 | 2017-02-21 | Kimberly-Clark Worldwide, Inc. | Method of forming an absorbent structure |
| US10596042B2 (en) | 2013-09-30 | 2020-03-24 | Kimberly-Clark Worldwide, Inc. | Method of forming an absorbent structure |
| US9789009B2 (en) | 2013-12-19 | 2017-10-17 | The Procter & Gamble Company | Absorbent articles having channel-forming areas and wetness indicator |
| EP2886092B1 (de) | 2013-12-19 | 2016-09-14 | The Procter and Gamble Company | Absorbierende Kerne mit kanalbildenden Bereichen und C-Wrap-Siegeln |
| US10398610B2 (en) * | 2014-05-13 | 2019-09-03 | The Procter & Gamble Company | Absorbent article with dual core |
| EP2949301B1 (de) | 2014-05-27 | 2018-04-18 | The Procter and Gamble Company | Saugfähiger Kern mit gebogenen und geraden Absorptionsmaterialbereichen |
| EP2949299B1 (de) | 2014-05-27 | 2017-08-02 | The Procter and Gamble Company | Saugfähiger Kern mit saugfähiger Materialstruktur |
| EP2949302B1 (de) | 2014-05-27 | 2018-04-18 | The Procter and Gamble Company | Saugfähiger Kern mit gebogenen, kanalbildenden Bereichen |
| EP2949300B1 (de) | 2014-05-27 | 2017-08-02 | The Procter and Gamble Company | Saugfähiger Kern mit saugfähiger Materialstruktur |
| FR3031756B1 (fr) * | 2015-01-16 | 2019-03-29 | Fibroline France | Procede d'impregnation de support fibreux poreux avec un materiau pulverulent, et support fibreux ainsi obtenu |
| BR112017024325A2 (pt) | 2015-05-12 | 2018-07-24 | Procter & Gamble | artigo absorvente com um adesivo aprimorado entre o núcleo e a camada inferior |
| EP3095425A1 (de) * | 2015-05-22 | 2016-11-23 | The Procter and Gamble Company | Verfahren zur beurteilung der dauerhaftigkeit von kanälen in einem saugfähigen kern |
| CN107683126A (zh) | 2015-05-29 | 2018-02-09 | 宝洁公司 | 具有槽和润湿指示标记的吸收制品 |
| EP3167859B1 (de) | 2015-11-16 | 2020-05-06 | The Procter and Gamble Company | Absorbierende kerne mit materialfreien bereichen |
| EP3238676B1 (de) | 2016-04-29 | 2019-01-02 | The Procter and Gamble Company | Saugkern mit profilierter verteilung von absorbierendem material |
| EP3238678B1 (de) | 2016-04-29 | 2019-02-27 | The Procter and Gamble Company | Saugfähiger kern mit transversalen faltlinien |
| CN106264891A (zh) * | 2016-10-27 | 2017-01-04 | 佛山市豪利家卫生用品有限公司 | 一种纸尿裤复式芯体吸收结构 |
| TWI686164B (zh) * | 2018-04-18 | 2020-03-01 | 陳文景 | 液體移除裝置 |
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| US4761258A (en) * | 1985-12-10 | 1988-08-02 | Kimberly-Clark Corporation | Controlled formation of light and heavy fluff zones |
| US4701294A (en) * | 1986-01-13 | 1987-10-20 | Kimberly-Clark Corporation | Eductor airforming apparatus |
| IL82511A (en) * | 1986-05-28 | 1992-09-06 | Procter & Gamble | Apparatus for and methods of airlaying fibrous webs having discrete particles therein |
| CA1314696C (en) * | 1988-01-22 | 1993-03-23 | Charles John Berg | Absorbent members having low density and basis weight acquisition zones |
| US5076774A (en) * | 1989-02-16 | 1991-12-31 | Chicopee | Apparatus for forming three dimensional composite webs |
| US5462537A (en) * | 1991-07-31 | 1995-10-31 | Kimberly-Clark Corporation | Absorbent article with inversely related gradients |
| SE508244C2 (sv) * | 1994-02-24 | 1998-09-21 | Moelnlycke Ab | Absorptionskropp samt anordning för framställning av en sådan absorptionskropp |
| US5830202A (en) * | 1994-08-01 | 1998-11-03 | The Procter & Gamble Company | Absorbent comprising upper and lower gel layers |
| US5558832A (en) * | 1995-08-25 | 1996-09-24 | The Procter & Gamble Company | Apparatus for sorting substrate components according to size and method of sorting substrate components therewith |
| US5873963A (en) * | 1997-06-02 | 1999-02-23 | The Procter & Gamble Company | Process for making an absorbent composite web |
| US6562742B2 (en) * | 1999-01-11 | 2003-05-13 | Bki Holding Corporation | High-performance absorbent structure |
-
2000
- 2000-11-17 AU AU16192/01A patent/AU1619201A/en not_active Abandoned
- 2000-11-17 CA CA002391528A patent/CA2391528A1/en not_active Abandoned
- 2000-11-17 MX MXPA02005020A patent/MXPA02005020A/es not_active Application Discontinuation
- 2000-11-17 WO PCT/US2000/031627 patent/WO2001035886A1/en not_active Application Discontinuation
- 2000-11-17 EP EP00978767A patent/EP1242017A1/de not_active Withdrawn
- 2000-11-20 CO CO00088046A patent/CO5200786A1/es not_active Application Discontinuation
- 2000-11-20 PE PE2000001240A patent/PE20010655A1/es not_active Application Discontinuation
- 2000-11-21 AR ARP000106124A patent/AR026549A1/es not_active Application Discontinuation
-
2001
- 2001-02-01 TW TW089124555A patent/TW567061B/zh active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4233816A4 (de) * | 2020-12-01 | 2024-04-17 | Zuiko Corporation | Verfahren zur herstellung eines wearable-artikels |
| EP4233818A4 (de) * | 2020-12-01 | 2024-04-17 | Zuiko Corporation | Trageartikel |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2001035886A1 (en) | 2001-05-25 |
| EP1242017A1 (de) | 2002-09-25 |
| AU1619201A (en) | 2001-05-30 |
| TW567061B (en) | 2003-12-21 |
| MXPA02005020A (es) | 2003-05-23 |
| PE20010655A1 (es) | 2001-06-19 |
| AR026549A1 (es) | 2003-02-19 |
| WO2001035886A8 (en) | 2001-10-11 |
| CO5200786A1 (es) | 2002-09-27 |
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