GB650972A - Process of degumming and bleaching ramie - Google Patents
Process of degumming and bleaching ramieInfo
- Publication number
- GB650972A GB650972A GB511548A GB511548A GB650972A GB 650972 A GB650972 A GB 650972A GB 511548 A GB511548 A GB 511548A GB 511548 A GB511548 A GB 511548A GB 650972 A GB650972 A GB 650972A
- Authority
- GB
- United Kingdom
- Prior art keywords
- solution
- boiling
- treating
- alum
- per cent
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Molecular Biology (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Textile Engineering (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
Gum and other incrustatious matter is removed from ramie fibre in the form of China grass by treating it with an aqueous solution of a non-alkaline aluminium salt of an inorganic acid of approximately 0.2 per cent strength. For example, the China grass may be treated with a 0.2 per cent solution of potassium alum, ammonium alum, sodium alum, or aluminium sulphate at room temperatures for 12 to 15 hours. The fibres may be further worked up for spinning by treatment successively with caustic soda solution, hydrochloric acid solution, sodium perborate solution, caustic soda solution, hydrochloric acid solution and sodium perborate solution.ALSO:Ramie is degummed and bleached in a series of steps comprising (1) soaking in an aqueous solution of an aluminium salt of approximately 0.2 per cent strength; (2) boiling in caustic soda solution of about 1 per cent strength followed by standing; (3) immersing in a dilute solution of an acid and boiling; (4) treating with a solution of an oxidizing salt and boiling; (5) boiling with dilute caustic alkali solution followed by standing; (6) treating with an acid solution which is of lower concentration than that used in step (3), and (7) treating with a solution of an oxidizing salt of concentration lower than that used in step (4). The alkali may be caustic soda, the acid hydrochloric acid and the oxidizing salt sodium perborate. The aluminium salt may be ammonium alum, sodium alum or aluminium sulphate.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR962075D FR962075A (en) | 1948-02-20 | ||
| GB511548A GB650972A (en) | 1948-02-20 | 1948-02-20 | Process of degumming and bleaching ramie |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB511548A GB650972A (en) | 1948-02-20 | 1948-02-20 | Process of degumming and bleaching ramie |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB650972A true GB650972A (en) | 1951-03-07 |
Family
ID=9789990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB511548A Expired GB650972A (en) | 1948-02-20 | 1948-02-20 | Process of degumming and bleaching ramie |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR962075A (en) |
| GB (1) | GB650972A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007126809A (en) * | 2005-11-01 | 2007-05-24 | Meirong Xu | Process for extracting and preparing bast fibers, basts fibers obtained from the process, and use of these bast fibers |
| CN110552072A (en) * | 2019-08-21 | 2019-12-10 | 浙江理工大学 | Efficient environment-friendly degumming pretreatment method for high-quality apocynum venetum fibers |
-
0
- FR FR962075D patent/FR962075A/fr not_active Expired
-
1948
- 1948-02-20 GB GB511548A patent/GB650972A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007126809A (en) * | 2005-11-01 | 2007-05-24 | Meirong Xu | Process for extracting and preparing bast fibers, basts fibers obtained from the process, and use of these bast fibers |
| EP1780316A3 (en) * | 2005-11-01 | 2008-11-12 | XU, Meirong | Process for the extraction and preparation of bast fibers, bast fibers obtained therefrom and their use |
| US7481843B2 (en) | 2005-11-01 | 2009-01-27 | Xu Meirong | Process for the extraction and preparation of bast fibers, bast fibers obtained therefrom and their use |
| CN110552072A (en) * | 2019-08-21 | 2019-12-10 | 浙江理工大学 | Efficient environment-friendly degumming pretreatment method for high-quality apocynum venetum fibers |
| CN110552072B (en) * | 2019-08-21 | 2021-09-03 | 浙江理工大学 | Efficient environment-friendly degumming pretreatment method for high-quality apocynum venetum fibers |
Also Published As
| Publication number | Publication date |
|---|---|
| FR962075A (en) | 1950-05-31 |
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