CA2124239C - Composite absorbant multicouche - Google Patents
Composite absorbant multicouche Download PDFInfo
- Publication number
- CA2124239C CA2124239C CA 2124239 CA2124239A CA2124239C CA 2124239 C CA2124239 C CA 2124239C CA 2124239 CA2124239 CA 2124239 CA 2124239 A CA2124239 A CA 2124239A CA 2124239 C CA2124239 C CA 2124239C
- Authority
- CA
- Canada
- Prior art keywords
- surge management
- layer
- absorbent
- density
- management layer
- 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.)
- Expired - Fee Related
Links
- 239000002250 absorbent Substances 0.000 title claims abstract description 197
- 230000002745 absorbent Effects 0.000 title claims abstract description 196
- 239000002131 composite material Substances 0.000 title description 20
- 239000000835 fiber Substances 0.000 claims abstract description 114
- 239000000463 material Substances 0.000 claims description 115
- 229920001131 Pulp (paper) Polymers 0.000 claims description 32
- 239000007788 liquid Substances 0.000 claims description 31
- 238000000034 method Methods 0.000 claims description 15
- 239000002245 particle Substances 0.000 claims description 14
- 229920000742 Cotton Polymers 0.000 claims description 7
- 238000004891 communication Methods 0.000 claims description 6
- 239000004627 regenerated cellulose Substances 0.000 claims description 3
- 238000009960 carding Methods 0.000 claims description 2
- 239000000523 sample Substances 0.000 description 51
- -1 polyethylene Polymers 0.000 description 21
- 238000012360 testing method Methods 0.000 description 16
- 239000012530 fluid Substances 0.000 description 15
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 14
- 239000004698 Polyethylene Substances 0.000 description 12
- 229920000573 polyethylene Polymers 0.000 description 12
- 230000002209 hydrophobic effect Effects 0.000 description 10
- 239000000203 mixture Substances 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 210000001124 body fluid Anatomy 0.000 description 7
- 239000010839 body fluid Substances 0.000 description 7
- 229920003023 plastic Polymers 0.000 description 7
- 239000004033 plastic Substances 0.000 description 7
- 229920000728 polyester Polymers 0.000 description 7
- 229920000642 polymer Polymers 0.000 description 7
- 239000004743 Polypropylene Substances 0.000 description 6
- 238000011156 evaluation Methods 0.000 description 6
- 229920001155 polypropylene Polymers 0.000 description 6
- 210000002700 urine Anatomy 0.000 description 6
- 229920013683 Celanese Polymers 0.000 description 4
- 229920002678 cellulose Polymers 0.000 description 4
- 239000001913 cellulose Substances 0.000 description 4
- 229920001577 copolymer Polymers 0.000 description 4
- 239000011148 porous material Substances 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 239000004094 surface-active agent Substances 0.000 description 4
- 229920000297 Rayon Polymers 0.000 description 3
- 239000012153 distilled water Substances 0.000 description 3
- 239000000017 hydrogel Substances 0.000 description 3
- 230000005660 hydrophilic surface Effects 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000002964 rayon Substances 0.000 description 3
- 239000011780 sodium chloride Substances 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 206010021639 Incontinence Diseases 0.000 description 2
- 229920002292 Nylon 6 Polymers 0.000 description 2
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 2
- 229920002472 Starch Polymers 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 238000001739 density measurement Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- WRUGWIBCXHJTDG-UHFFFAOYSA-L magnesium sulfate heptahydrate Chemical compound O.O.O.O.O.O.O.[Mg+2].[O-]S([O-])(=O)=O WRUGWIBCXHJTDG-UHFFFAOYSA-L 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229920002401 polyacrylamide 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
- 239000008107 starch Substances 0.000 description 2
- 235000019698 starch Nutrition 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- 238000012549 training Methods 0.000 description 2
- 229920002554 vinyl polymer Polymers 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- 229920001817 Agar Polymers 0.000 description 1
- 101000843155 Capsicum annuum Histone H4 Proteins 0.000 description 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- 229920003043 Cellulose fiber Polymers 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 229920002907 Guar gum Polymers 0.000 description 1
- 229920002153 Hydroxypropyl cellulose Polymers 0.000 description 1
- VQTUBCCKSQIDNK-UHFFFAOYSA-N Isobutene Chemical group CC(C)=C VQTUBCCKSQIDNK-UHFFFAOYSA-N 0.000 description 1
- 229920002302 Nylon 6,6 Polymers 0.000 description 1
- 239000004687 Nylon copolymer Substances 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 241000981595 Zoysia japonica Species 0.000 description 1
- 229920006397 acrylic thermoplastic Polymers 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 239000008272 agar Substances 0.000 description 1
- 235000010419 agar Nutrition 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- YYRMJZQKEFZXMX-UHFFFAOYSA-L calcium bis(dihydrogenphosphate) Chemical compound [Ca+2].OP(O)([O-])=O.OP(O)([O-])=O YYRMJZQKEFZXMX-UHFFFAOYSA-L 0.000 description 1
- 229910000389 calcium phosphate Inorganic materials 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 229920002301 cellulose acetate Polymers 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005315 distribution function Methods 0.000 description 1
- 238000000578 dry spinning Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000499 gel Substances 0.000 description 1
- 239000000665 guar gum Substances 0.000 description 1
- 229960002154 guar gum Drugs 0.000 description 1
- 235000010417 guar gum Nutrition 0.000 description 1
- 239000011121 hardwood Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 229920001477 hydrophilic polymer Polymers 0.000 description 1
- 239000001863 hydroxypropyl cellulose Substances 0.000 description 1
- 235000010977 hydroxypropyl cellulose Nutrition 0.000 description 1
- ZCTXEAQXZGPWFG-UHFFFAOYSA-N imidurea Chemical compound O=C1NC(=O)N(CO)C1NC(=O)NCNC(=O)NC1C(=O)NC(=O)N1CO ZCTXEAQXZGPWFG-UHFFFAOYSA-N 0.000 description 1
- 239000002198 insoluble material Substances 0.000 description 1
- 238000002074 melt spinning Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229940111688 monobasic potassium phosphate Drugs 0.000 description 1
- 235000019691 monocalcium phosphate Nutrition 0.000 description 1
- 235000019796 monopotassium phosphate Nutrition 0.000 description 1
- VSEAAEQOQBMPQF-UHFFFAOYSA-N morpholin-3-one Chemical compound O=C1COCCN1 VSEAAEQOQBMPQF-UHFFFAOYSA-N 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 230000037361 pathway Effects 0.000 description 1
- 239000001814 pectin Substances 0.000 description 1
- 235000010987 pectin Nutrition 0.000 description 1
- 229920001277 pectin Polymers 0.000 description 1
- 230000002572 peristaltic effect Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 229920001289 polyvinyl ether Polymers 0.000 description 1
- 239000001103 potassium chloride Substances 0.000 description 1
- 235000011164 potassium chloride Nutrition 0.000 description 1
- GNSKLFRGEWLPPA-UHFFFAOYSA-M potassium dihydrogen phosphate Chemical compound [K+].OP(O)([O-])=O GNSKLFRGEWLPPA-UHFFFAOYSA-M 0.000 description 1
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 description 1
- 229910052939 potassium sulfate Inorganic materials 0.000 description 1
- 239000001120 potassium sulphate Substances 0.000 description 1
- 235000011151 potassium sulphates Nutrition 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 239000011122 softwood Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- ISXSCDLOGDJUNJ-UHFFFAOYSA-N tert-butyl prop-2-enoate Chemical compound CC(C)(C)OC(=O)C=C ISXSCDLOGDJUNJ-UHFFFAOYSA-N 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- 229940001496 tribasic sodium phosphate Drugs 0.000 description 1
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 1
- NLVXSWCKKBEXTG-UHFFFAOYSA-N vinylsulfonic acid Chemical compound OS(=O)(=O)C=C NLVXSWCKKBEXTG-UHFFFAOYSA-N 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 238000002166 wet spinning Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Landscapes
- Absorbent Articles And Supports Therefor (AREA)
- Laminated Bodies (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US196,920 | 1994-02-14 | ||
| US08/196,920 US5466513A (en) | 1992-12-18 | 1994-02-14 | Multi-layer absorbent composite |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2124239A1 CA2124239A1 (fr) | 1995-08-15 |
| CA2124239C true CA2124239C (fr) | 2005-01-11 |
Family
ID=22727292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2124239 Expired - Fee Related CA2124239C (fr) | 1994-02-14 | 1994-05-25 | Composite absorbant multicouche |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2124239C (fr) |
-
1994
- 1994-05-25 CA CA 2124239 patent/CA2124239C/fr not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CA2124239A1 (fr) | 1995-08-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |