GB412470A - Process for refining fibres of hemp and other bast fibres such as nettle fibres, flax fibres and the like - Google Patents
Process for refining fibres of hemp and other bast fibres such as nettle fibres, flax fibres and the likeInfo
- Publication number
- GB412470A GB412470A GB29065/33A GB2906533A GB412470A GB 412470 A GB412470 A GB 412470A GB 29065/33 A GB29065/33 A GB 29065/33A GB 2906533 A GB2906533 A GB 2906533A GB 412470 A GB412470 A GB 412470A
- Authority
- GB
- United Kingdom
- Prior art keywords
- fibres
- per cent
- sodium
- refining
- nettle
- 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
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01C—CHEMICAL OR BIOLOGICAL TREATMENT OF NATURAL FILAMENTARY OR FIBROUS MATERIAL TO OBTAIN FILAMENTS OR FIBRES FOR SPINNING; CARBONISING RAGS TO RECOVER ANIMAL FIBRES
- D01C1/00—Treatment of vegetable material
- D01C1/02—Treatment of vegetable material by chemical methods to obtain bast fibres
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C3/00—Pulping cellulose-containing materials
- D21C3/22—Other features of pulping processes
- D21C3/26—Multistage processes
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/10—Bleaching ; Apparatus therefor
- D21C9/1057—Multistage, with compounds cited in more than one sub-group D21C9/10, D21C9/12, D21C9/16
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Molecular Biology (AREA)
- Zoology (AREA)
- Textile Engineering (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
- Artificial Filaments (AREA)
Abstract
412,470. Refining bast fibres. PALAZZO, F. C., and PALAZZO, F., 34, Via Montebello, Florence, Italy. Oct. 20, 1933, No. 29065. Convention date, Aug. 10. [Class 120 (i).] In a process for refining bast fibres such as hemp, nettle and flax, the raw fibrous material is first subjected at ordinary temperatures for 4-8 hours to the action of chlorine water containing about 0À25 per cent of chlorine, and is then treated for 1 to 4 hours at 1 to 3 atmospheres pressure with an alkali sulphite solution containing besides 0À5 per cent of sodium sulphite either 0À5 per cent of sodium carbonate or 0À5 per cent of sodium hydroxide, and is finally bleached first in a feebly alkaline hypochlorite solution and secondly in a feebly acid bath of either sodium hypochlorite or potassium permanganate, followed with a dilute solution of sulphurous acid. The bleaching may be effected on a roughly carded product or even on the finished yarn instead of on the fibrous material, the finished yarn being first scoured if saponifiable oils have been added during the spinning operation.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT412470X | 1933-08-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB412470A true GB412470A (en) | 1934-06-28 |
Family
ID=11250216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB29065/33A Expired GB412470A (en) | 1933-08-10 | 1933-10-20 | Process for refining fibres of hemp and other bast fibres such as nettle fibres, flax fibres and the like |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB412470A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106283209A (en) * | 2016-08-16 | 2017-01-04 | 东华大学 | A kind of method utilizing coir fibre to prepare different scale nanometer fibril and purposes |
| EP3146108A4 (en) * | 2014-05-20 | 2017-12-20 | Georgia-Pacific Consumer Products LP | Bleaching and shive reduction process for non-wood fibers |
| US10711399B2 (en) | 2014-05-20 | 2020-07-14 | Gpcp Ip Holdings Llc | Bleaching and shive reduction process for non-wood fibers |
| US10844538B2 (en) | 2014-05-20 | 2020-11-24 | Gpcp Ip Holdings Llc | Bleaching and shive reduction process for non-wood fibers |
-
1933
- 1933-10-20 GB GB29065/33A patent/GB412470A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3146108A4 (en) * | 2014-05-20 | 2017-12-20 | Georgia-Pacific Consumer Products LP | Bleaching and shive reduction process for non-wood fibers |
| US10640899B2 (en) | 2014-05-20 | 2020-05-05 | Gpcp Ip Holdings Llc | Bleaching and shive reduction process for non-wood fibers |
| US10711399B2 (en) | 2014-05-20 | 2020-07-14 | Gpcp Ip Holdings Llc | Bleaching and shive reduction process for non-wood fibers |
| US10844538B2 (en) | 2014-05-20 | 2020-11-24 | Gpcp Ip Holdings Llc | Bleaching and shive reduction process for non-wood fibers |
| CN106283209A (en) * | 2016-08-16 | 2017-01-04 | 东华大学 | A kind of method utilizing coir fibre to prepare different scale nanometer fibril and purposes |
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