GB1394085A - Paper or non-woven fabric of regenerated cellulose fibres and method for producing the same - Google Patents
Paper or non-woven fabric of regenerated cellulose fibres and method for producing the sameInfo
- Publication number
- GB1394085A GB1394085A GB3021972A GB3021972A GB1394085A GB 1394085 A GB1394085 A GB 1394085A GB 3021972 A GB3021972 A GB 3021972A GB 3021972 A GB3021972 A GB 3021972A GB 1394085 A GB1394085 A GB 1394085A
- Authority
- GB
- United Kingdom
- Prior art keywords
- fibres
- web
- cellulose xanthate
- paper
- woven fabric
- 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
Links
- 238000004519 manufacturing process Methods 0.000 title abstract 3
- 239000004745 nonwoven fabric Substances 0.000 title abstract 3
- 229920003043 Cellulose fiber Polymers 0.000 title abstract 2
- 239000004627 regenerated cellulose Substances 0.000 title abstract 2
- ZOOODBUHSVUZEM-UHFFFAOYSA-N ethoxymethanedithioic acid Chemical compound CCOC(S)=S ZOOODBUHSVUZEM-UHFFFAOYSA-N 0.000 abstract 5
- 229920003063 hydroxymethyl cellulose Polymers 0.000 abstract 5
- 229940031574 hydroxymethyl cellulose Drugs 0.000 abstract 5
- 239000012991 xanthate Substances 0.000 abstract 5
- 238000000034 method Methods 0.000 abstract 3
- 230000008929 regeneration Effects 0.000 abstract 3
- 238000011069 regeneration method Methods 0.000 abstract 3
- 229920000297 Rayon Polymers 0.000 abstract 2
- 239000012736 aqueous medium Substances 0.000 abstract 2
- 239000002964 rayon Substances 0.000 abstract 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 abstract 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 abstract 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 abstract 1
- 239000004952 Polyamide Substances 0.000 abstract 1
- 238000010306 acid treatment Methods 0.000 abstract 1
- 239000003929 acidic solution Substances 0.000 abstract 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 abstract 1
- 239000011260 aqueous acid Substances 0.000 abstract 1
- 239000001768 carboxy methyl cellulose Substances 0.000 abstract 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 abstract 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 abstract 1
- 229920002678 cellulose Polymers 0.000 abstract 1
- 239000001913 cellulose Substances 0.000 abstract 1
- 238000002788 crimping Methods 0.000 abstract 1
- 238000000354 decomposition reaction Methods 0.000 abstract 1
- 230000018044 dehydration Effects 0.000 abstract 1
- 238000006297 dehydration reaction Methods 0.000 abstract 1
- 239000002270 dispersing agent Substances 0.000 abstract 1
- 238000004049 embossing Methods 0.000 abstract 1
- 239000004033 plastic Substances 0.000 abstract 1
- 229920003023 plastic Polymers 0.000 abstract 1
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 abstract 1
- 229920002401 polyacrylamide Polymers 0.000 abstract 1
- 229920002647 polyamide Polymers 0.000 abstract 1
- 229920000728 polyester Polymers 0.000 abstract 1
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 abstract 1
- 230000008961 swelling Effects 0.000 abstract 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
- D21H13/02—Synthetic cellulose fibres
- D21H13/08—Synthetic cellulose fibres from regenerated cellulose
Landscapes
- Absorbent Articles And Supports Therefor (AREA)
- Nonwoven Fabrics (AREA)
Abstract
1394085 Paper; non-woven fabric MITSUBISHI RAYON CO Ltd 28 June 1972 30219/ 72 Heading D2B A method of making a paper or non-woven fabric comprising regenerated cellulose fibres comprises (a) dispersing spun and stretched fibres comprising hydroxy methyl cellulose xanthate in an aqueous medium having a pH lower than 6.0 at a temperature lower than 30C; (b) forming the fibres into a web by a wet-forming method; (c) dehydrating the web to an extent that the "process moisture percentage" of the web is lower than 700%, the fibres after dehydration being characterised by (1) a γ-value greater than 30, (2) a "decomposition degree" less than 75%, and (3) a "process swelling degree" less than 250%; (d) subjecting at least a portion of the surface of the dehydrated web to a pressure greater than 2 Kg/cm at 90-180C, thereby fusing and decomposing the hydroxymethyl cellulose xanthate in the pressed portion and simultaneously bonding the fibres in said portion to each other, and (e) subjecting the pressed web to a regeneration treatment to decompose remaining hydroxymethyl cellulose xanthate into cellulose. The aqueous medium in which the hydroxymethyl cellulose xanthate fibres is dispersed may contain dispersing agents such as polyethylene oxide, carboxymethyl cellulose, sodium polyacrylate, polyacrylamide, and various latexes. The surface of the dehydrated web may be fused over an area from 5 to 40% of the total surface area of the web. Embossing rolls or smooth rolls in association with a plastics net may be used for this purpose, (Figs. 4, 5 not shown). The fused areas may form a spotted pattern and small holes may be formed in such areas. Use of a roll at high temperature but relatively low pressure produces a web having one side fused and transparent. The hydroxymethyl cellulose xanthate fibres may be blended with fibres which do not fuse at 90-180C e.g. pulp, rayon, acrylic, polyester, polyamide, and acetate fibres. Regeneration may be carried out with an aqueous acidic solution at a temperature higher than 50C. The fibrous parts of the pressed web may be subjected to shrinkage or crimping during regeneration by a two-stage aqueous acid treatment. The product may weigh from 10- 200 g. per square meter and may be used in the manufacture of tampons, pads, sheets, table cloths, diapers, curtains inter alia.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3021972A GB1394085A (en) | 1972-06-28 | 1972-06-28 | Paper or non-woven fabric of regenerated cellulose fibres and method for producing the same |
| AU43985/72A AU465054B2 (en) | 1972-06-28 | 1972-06-28 | Paper or non-woven fabric or regenerated cellulose fibers and method producing the same |
| US00267994A US3832281A (en) | 1972-06-28 | 1972-06-30 | Paper or non-woven fabric of regenerated cellulose fibers and method for producing the same |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3021972A GB1394085A (en) | 1972-06-28 | 1972-06-28 | Paper or non-woven fabric of regenerated cellulose fibres and method for producing the same |
| AU43985/72A AU465054B2 (en) | 1972-06-28 | 1972-06-28 | Paper or non-woven fabric or regenerated cellulose fibers and method producing the same |
| US00267994A US3832281A (en) | 1972-06-28 | 1972-06-30 | Paper or non-woven fabric of regenerated cellulose fibers and method for producing the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1394085A true GB1394085A (en) | 1975-05-14 |
Family
ID=35262221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3021972A Expired GB1394085A (en) | 1972-06-28 | 1972-06-28 | Paper or non-woven fabric of regenerated cellulose fibres and method for producing the same |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US3832281A (en) |
| AU (1) | AU465054B2 (en) |
| GB (1) | GB1394085A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2831403A1 (en) * | 1978-06-02 | 1979-12-13 | Dexter Corp | FIBER FLEECE LEVEL AND METHOD FOR CONTINUOUSLY PRODUCING A UNIFORM FIBER DISPERSION |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS531842B2 (en) * | 1973-06-18 | 1978-01-23 | ||
| JPS51130378A (en) * | 1975-05-08 | 1976-11-12 | Mitsubishi Rayon Co | Manufacture of sheettlike substance |
| EP3806796B1 (en) * | 2018-06-12 | 2024-01-10 | The Procter & Gamble Company | Absorbent articles having shaped, soft and textured nonwoven fabrics |
-
1972
- 1972-06-28 AU AU43985/72A patent/AU465054B2/en not_active Expired
- 1972-06-28 GB GB3021972A patent/GB1394085A/en not_active Expired
- 1972-06-30 US US00267994A patent/US3832281A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2831403A1 (en) * | 1978-06-02 | 1979-12-13 | Dexter Corp | FIBER FLEECE LEVEL AND METHOD FOR CONTINUOUSLY PRODUCING A UNIFORM FIBER DISPERSION |
Also Published As
| Publication number | Publication date |
|---|---|
| AU4398572A (en) | 1974-01-03 |
| US3832281A (en) | 1974-08-27 |
| AU465054B2 (en) | 1974-01-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |