GB615519A - Improvements in or relating to methods of conditioning vegetable bast fibres for spinning - Google Patents
Improvements in or relating to methods of conditioning vegetable bast fibres for spinningInfo
- Publication number
- GB615519A GB615519A GB7991/45A GB799145A GB615519A GB 615519 A GB615519 A GB 615519A GB 7991/45 A GB7991/45 A GB 7991/45A GB 799145 A GB799145 A GB 799145A GB 615519 A GB615519 A GB 615519A
- Authority
- GB
- United Kingdom
- Prior art keywords
- solution
- fibres
- sodium
- salts
- acids
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S56/00—Harvesters
- Y10S56/02—Methods
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)
Abstract
The natural gums are partially removed from bast fibres of flax, hemp or ramie by treating them with an aqueous solution of chlorous acid, its salts or anhydride, at a pH of 3.5-11 and a temperature of 50-100 DEG C., and thereafter treating them with a weak alkaline solution at 50-100 DEG C. About one part by weight of oxidizing agent is used to treat from 10 to 50 parts of fibres, and the alkaline solution may consist of a solution of caustic alkali or a carbonate in concentration of 0.1 to 5 per cent. The fibres may be given a preliminary treatment with water or spent alkali solution from a previous batch. An incidental bleaching of the fibres occurs during the treatment. In an example, mature dry flax straw is decorticated and wound on bobbins and then treated firstly with water at 100 DEG C. and then with a solution containing sodium chlorite and acetic acid at 95 DEG C. After washing with cold water, the fibres are treated with 1 per cent sodium hydroxide solution at 95 DEG C. to give a roving which can be spun to a linen yarn of 20 to 30 lea. In a second example, the process is repeated except that the sodium hydroxide solution is replaced by a solution containing sodium carbonate and sodium hexametaphosphate. A third example is given in which the preliminary washing is carried out with the spent alkali of the second example, and the process is then completed as in the first example. Specification 567,774 is referred to. The Specification as open to inspection under Sect. 91 refers also to the use of hydrogen peroxide, per-acids, salts of per-acids such as sodium percarbonate and sodium perborate, organic peroxides such as benzoyl peroxide, and other oxygen-containing acids of the halogen series, their salts or anhydrides, e.g. chlorine dioxide. This subject-matter does not appear in the Specification as accepted.ALSO:The natural gums are partially removed from bast fibres of flax, hemp or ramie by treating them with an aqueous solution of chlorous acid, its salts or anhydride, at a pH of 3.5-11 and a temperature of 50-100 DEG C. and thereafter treating them with a weak alkaline solution at 50-100 DEG C. About one part by weight of oxidizing agent is used to treat from 10 to 50 parts of fibres, and the alkaline solution may consist of a solution of caustic alkali or a carbonate in concentration of 0.1 to 5 per cent. The fibres may be given a preliminary treatment with water or spent p alkali solution from a previous batch. An incidental bleaching of the fibres occurs during the treatment. In an example, mature dry flax straw is decorticated and wound on bobbins and then treated firstly with water at 100 DEG C. and then with a solution containing sodium chlorite and acetic acid at 95 DEG C. After washing with cold water, the fibres are treated with 1 per cent sodium hydroxide solution at 95 DEG C. to give a roving which can be spun to a linen yarn of 20 to 30 lea. In a second example, the process is repeated except that the sodium hydroxide solution is replaced by a solution containing sodium carbonate and sodium hexametaphosphate. A third example is given in which the preliminary washing is carried out with the spent alkali of the second example, and the process is then completed as in the first example. Specification 567,774 is referred to. The Specification as open to inspection under Sect. 91 refers also to the use of hydrogen peroxide, per-acids, salts of per-acids such as sodium percarbonate and sodium perborate, organic peroxides such as benzoyl peroxide and other oxygen-containing acids of the halogen series, their salts or anhydrides, e.g. chlorine dioxide. This subject-matter does not appear in the Specification as accepted.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US615519XA | 1944-04-03 | 1944-04-03 | |
US529426A US2468771A (en) | 1944-04-03 | 1944-04-03 | Process of preparing fibers and yarns |
Publications (1)
Publication Number | Publication Date |
---|---|
GB615519A true GB615519A (en) | 1949-01-07 |
Family
ID=26741199
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7991/45A Expired GB615519A (en) | 1944-04-03 | 1945-03-29 | Improvements in or relating to methods of conditioning vegetable bast fibres for spinning |
Country Status (2)
Country | Link |
---|---|
US (1) | US2468771A (en) |
GB (1) | GB615519A (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2657717A (en) * | 1949-12-03 | 1953-11-03 | Sativa Corp | Preshrunk yarn or fabric |
US2741894A (en) * | 1953-05-28 | 1956-04-17 | Univ Minnesota | Process of preparing yarns |
US8475628B1 (en) | 2011-03-29 | 2013-07-02 | Hbi Branded Apparel Enterprises, Llc | Process and apparatus for orienting bast stalks for decortication |
US8635844B1 (en) | 2011-03-29 | 2014-01-28 | Hbi Branded Apparel Enterprises, Llc | Method for harvesting bast plants |
US9702082B2 (en) | 2015-08-13 | 2017-07-11 | 9Fiber, Inc. | Methods for producing raw materials from plant biomass |
US9487914B1 (en) | 2015-08-13 | 2016-11-08 | 9F, Inc. | Decortication methods for producing raw materials from plant biomass |
Family Cites Families (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US487875A (en) * | 1892-12-13 | Art of manufacturing tarn from scutched flax | ||
DE221149C (en) * | ||||
GB190521702A (en) * | 1905-10-25 | 1906-10-11 | William Young | Improvements in the Treatment of Flax and Hemp Rovings. |
US1025435A (en) * | 1910-08-01 | 1912-05-07 | Conrad L Weiberg | Process of extracting vegetable fiber. |
US1053125A (en) * | 1912-05-11 | 1913-02-11 | Herman G Green | Process of obtaining cellulose from vegetable substances. |
FR518664A (en) * | 1916-12-01 | 1921-05-28 | Gustav Bonwitt | Process for obtaining fibrous materials |
DE337640C (en) * | 1917-10-09 | 1921-06-02 | Gustav Bonwitt Dr | Process for breaking down raw vegetable fibers |
DE407500C (en) * | 1919-01-06 | 1924-12-16 | Henry Silbermann | Process for the production of pure cellulose fibers from cellulose-containing materials contaminated by encrusting accompanying substances, such as cellulose and vegetable fibers |
DE328034C (en) * | 1919-04-05 | 1920-10-18 | P Krais Dr | Process for the production of individual fibers from bast fiber bundles with simultaneous opening up and removal of existing wood parts and incrustations |
DE331907C (en) * | 1922-01-04 | 1921-01-14 | Schmidt Erich | Process for the production of cellulose from wood and similar cellulose-containing materials |
DE388343C (en) * | 1922-12-12 | 1924-01-11 | Adolf Kaempf Dr | Process for the production of pulp |
US1580136A (en) * | 1923-11-16 | 1926-04-13 | Hamburger Robert | Process for bleaching organic materials |
US1557338A (en) * | 1923-12-10 | 1925-10-13 | Runkel Roland | Method of producing half stuffs and cellulose |
FR587935A (en) * | 1924-05-16 | 1925-04-27 | Process for extracting pure cellulose fibers from cellulose-containing materials made impure by encrustation, for example sulphite cellulose and vegetable fibrous materials, and for using residual lye | |
US1587631A (en) * | 1925-02-12 | 1926-06-08 | Milton S Erlanger | Extraction of cellulose |
US1777751A (en) * | 1926-08-05 | 1930-10-07 | Ig Farbenindustrie Ag | Producing cellulose |
DE512927C (en) * | 1927-05-22 | 1930-11-14 | I G Farbenindustrie Akt Ges | Process for the digestion of vegetable fibers with chloric acid |
GB302300A (en) * | 1927-09-14 | 1928-12-14 | Martin Waddell | Improvements in treating or retting flax fibre |
US2093087A (en) * | 1928-11-21 | 1937-09-14 | Western Electric Co | Insulated conductor |
US1894501A (en) * | 1930-04-17 | 1933-01-17 | Mathieson Alkali Works Inc | Manufacture of wood pulp |
SE92930C1 (en) * | 1935-10-24 | 1938-10-11 | ||
US2056185A (en) * | 1935-10-30 | 1936-10-06 | Tropical Products Corp | Preparing and utilizing natural fibers |
US2100496A (en) * | 1936-02-18 | 1937-11-30 | Mathieson Alkali Works Inc | Bleaching of cellulosic materials |
US2230269A (en) * | 1937-07-13 | 1941-02-04 | E B Elliott | Process for treatment of vegetable fibers |
US2128929A (en) * | 1938-01-06 | 1938-09-06 | Weston Allen J | Article of manufacture from fibers of bast or leaf origin |
US2166330A (en) * | 1938-09-12 | 1939-07-18 | Mathieson Alkali Works Inc | Method of bleaching |
BE437383A (en) * | 1938-12-24 | |||
US2253242A (en) * | 1939-03-28 | 1941-08-19 | Mathieson Alkall Works Inc | Desizing textiles with chlorite |
US2346585A (en) * | 1941-12-02 | 1944-04-11 | Sils Corp | Process of spinning flax and similar fibers |
GB567774A (en) * | 1942-08-24 | 1945-03-02 | George Brainard Fowler | Improvements in or relating to processes of treating cellulosic raw material, and the improved cellulosic fibres resulting therefrom |
-
1944
- 1944-04-03 US US529426A patent/US2468771A/en not_active Expired - Lifetime
-
1945
- 1945-03-29 GB GB7991/45A patent/GB615519A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US2468771A (en) | 1949-05-03 |
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