GB500013A - Improvements in or relating to the treatment of casein fibres - Google Patents
Improvements in or relating to the treatment of casein fibresInfo
- Publication number
- GB500013A GB500013A GB10450/38A GB1045038A GB500013A GB 500013 A GB500013 A GB 500013A GB 10450/38 A GB10450/38 A GB 10450/38A GB 1045038 A GB1045038 A GB 1045038A GB 500013 A GB500013 A GB 500013A
- Authority
- GB
- United Kingdom
- Prior art keywords
- casein
- fibres
- acid
- nitrous acid
- treatment
- 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
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
- D06M13/12—Aldehydes; Ketones
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F4/00—Monocomponent artificial filaments or the like of proteins; Manufacture thereof
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/58—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with nitrogen or compounds thereof, e.g. with nitrides
- D06M11/64—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with nitrogen or compounds thereof, e.g. with nitrides with nitrogen oxides; with oxyacids of nitrogen or their salts
Abstract
500,013. Artificial threads ; casein; dyeing textile materials. NAAMLOOZE VENNOOTSCHAP ONDERZOEKINGSINSTITUUT RESEAHCH. April 5, 1938, Nos. 10450 and 10451. Convention dates, May 11, 1937 and May 26, 1937. [Classes 2(ii). 2 (iii), and 15 (ii)] Casein fibres are rendered resistant to shrinkage or sticking in hot acid dye baths by treating them with nitrous acid and with an aldehyde or a substance, such as hexamethylene tetramine, which gives rise to an aldehyde. Nitrous acid may be added in the form of a mixture of an alkali nitrite with an acid. If, however, the casein fibres are treated with an alkali nitrite without the addition of an acid, a slow reaction takes place between acid groups in the casein and the alkali nitrite, with the liberation of sufficient quantities of nitrous acid. When treatment with nitrous acid is effected in the latter way, the casein fibres are additionally rendered resistant to swelling during washing in alkaline baths following the dyeing process. Where the treatment with nitrous acid is too drastic, the fibres become yellowed, but this defect may be removed by treatment of the fibres with a reducing bleaching agent such as sodium hyposulphite. After treatment with nitrous acid and an aldehyde, any carboxyl groups remaining in the casein molecule may be neutralized, for example with alkaline earths, and the fibres may be treated with softening agents such as glycerol, sulphonated oils, sulphonated fatty -alcohols, &c. Where the nitrous acid is formed by the reaction between the casein and an alkali nitrite, the reaction may be carried out in the presence of a neutral dehydrating salt such as sodium sulphate or magnesium sulphate. In examples, casein fibres formed by spinning an alkaline casein solution into an acid coagulating bath, are treated (a) with formaldehyde and, after washing and drying, with a solution containing sodium nitrite and acetic acid ; (b) with nitrous acid and, after washing, with formaldehyde; (c) with formaldehyde and, after drying, with a solution containing sodium nitrite and sodium sulphate. In a further example, casein fibres treated according to (a) are bleached with sodium hyposulphite and then treated with lime.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE500013X | 1937-05-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB500013A true GB500013A (en) | 1939-02-01 |
Family
ID=6545552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB10450/38A Expired GB500013A (en) | 1937-05-11 | 1938-04-05 | Improvements in or relating to the treatment of casein fibres |
Country Status (5)
| Country | Link |
|---|---|
| US (2) | US2169955A (en) |
| BE (1) | BE427082A (en) |
| FR (1) | FR835313A (en) |
| GB (1) | GB500013A (en) |
| NL (1) | NL46483C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE434686A (en) * | 1938-11-14 | |||
| US2521738A (en) * | 1944-06-15 | 1950-09-12 | Thomas L Mcmeekin | Process for the production of artificial bristles and the like from proteins |
| US2420736A (en) * | 1945-08-23 | 1947-05-20 | Gen Mills Inc | Treatment of protein with acids and furfuryl alcohol and product resulting therefrom |
| US2420735A (en) * | 1945-08-23 | 1947-05-20 | Gen Mills Inc | Treatment of protein with acids and product resulting therefrom |
-
0
- NL NL46483D patent/NL46483C/xx active
- BE BE427082D patent/BE427082A/xx unknown
- US US22262D patent/USRE22262E/en not_active Expired
-
1938
- 1938-03-16 FR FR835313D patent/FR835313A/en not_active Expired
- 1938-04-05 GB GB10450/38A patent/GB500013A/en not_active Expired
- 1938-04-22 US US203700A patent/US2169955A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| FR835313A (en) | 1938-12-19 |
| BE427082A (en) | |
| US2169955A (en) | 1939-08-15 |
| USRE22262E (en) | 1943-02-02 |
| NL46483C (en) |
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