GB436268A - Improvements in or relating to bleaching cellulose-containing fibres for instance cotton, by means of solutions of per-compounds - Google Patents
Improvements in or relating to bleaching cellulose-containing fibres for instance cotton, by means of solutions of per-compoundsInfo
- Publication number
- GB436268A GB436268A GB2563/35A GB256335A GB436268A GB 436268 A GB436268 A GB 436268A GB 2563/35 A GB2563/35 A GB 2563/35A GB 256335 A GB256335 A GB 256335A GB 436268 A GB436268 A GB 436268A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pressure
- materials
- caustic soda
- hydrogen peroxide
- under pressure
- 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
- D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
- D06L1/00—Dry-cleaning or washing fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods
- D06L1/12—Dry-cleaning or washing fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods using aqueous solvents
- D06L1/18—Working under pressure in closed vessels
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
- D06L4/00—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
- D06L4/10—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which develop oxygen
- D06L4/12—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which develop oxygen combined with specific additives
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Paper (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
Cotton, linen, jute, hemp, ramie, artificial silk, and other cellulose fibres are bleached with peroxides or other per-compounds at a pressure of at least 1.5 atmospheres above atmospheric pressure and at temperatures exceeding 80 DEG C. and preferably 100 DEG C. or more. The active agent may be hydrogen peroxide, sodium peroxide, or sodium perborate. The pressure may be produced hydraulically, by a pump, by pressure of a circulating bath, by expansion of the treatment liquid in a closed completely filled kier or by gas pressure. The alkali content of the bleaching bath is preferably low. Caustic soda, or sodium silicate may be used. The decomposition of the peroxide may be regulated by the addition of catalysts or of inhibitors. Iron apparatus may be used provided it is protected with a lime or magnesia cement coating. The process may be preceded by pressure boiling the materials with solutions of caustic soda, sodium carbonate, or lime. The materials may be treated with acid between the bucking and bleaching processes. The bleaching liquor may be applied cold to the materials so that on warming up in the closed kier pressure due to expansion is produced. The kier is opened to remove the enclosed air, then closed and the materials are boiled under pressure. The materials treated may be in loose form, or in the form of slivers, yarns, knitted or woven fabrics. In an example, cotton fabric is heated under pressure with caustic soda and sodium carbonate. It is washed and then heated at 110 DEG C. and under a pressure of 3 atmospheres above atmospheric with hydrogen peroxide and water-glass. In another example, slivers or knitted goods are heated under pressure with hydrogen peroxide, caustic soda, and water-glass. In another example, cotton goods are boiled under pressure with lime, washed, acidified, washed, and boiled under pressure with hydrogen peroxide and water-glass.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT436268X | 1934-03-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB436268A true GB436268A (en) | 1935-10-08 |
Family
ID=3730889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2563/35A Expired GB436268A (en) | 1934-03-09 | 1935-01-25 | Improvements in or relating to bleaching cellulose-containing fibres for instance cotton, by means of solutions of per-compounds |
Country Status (4)
| Country | Link |
|---|---|
| AT (1) | AT143295B (en) |
| DE (1) | DE698164C (en) |
| FR (1) | FR786938A (en) |
| GB (1) | GB436268A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2920011A (en) * | 1955-03-18 | 1960-01-05 | Waldorf Paper Prod Co | Elevated temperature and pressure two stage hypochlorite peroxide pulp bleaching process |
| CN103643476A (en) * | 2013-12-02 | 2014-03-19 | 常熟市新蕾针织有限公司 | Processing method of ultra-white pure cotton knitted fabric |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE749136C (en) * | 1942-03-17 | 1944-12-14 | Thies Coesfeld I W Inh B Thies | Method and device for wet treatment, in particular dyeing, of rayon in the form of packages and note trees |
| GB805749A (en) * | 1971-10-04 | 1958-12-10 | Du Pont | Textile bleaching process |
| EP0647466A3 (en) * | 1993-10-08 | 1996-01-17 | Akzo Nobel Nv | Cellulosic membranes. |
-
0
- AT AT143295D patent/AT143295B/de active
-
1935
- 1935-01-16 DE DE1935D0069533 patent/DE698164C/en not_active Expired
- 1935-01-25 GB GB2563/35A patent/GB436268A/en not_active Expired
- 1935-03-08 FR FR786938D patent/FR786938A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2920011A (en) * | 1955-03-18 | 1960-01-05 | Waldorf Paper Prod Co | Elevated temperature and pressure two stage hypochlorite peroxide pulp bleaching process |
| CN103643476A (en) * | 2013-12-02 | 2014-03-19 | 常熟市新蕾针织有限公司 | Processing method of ultra-white pure cotton knitted fabric |
Also Published As
| Publication number | Publication date |
|---|---|
| AT143295B (en) | |
| DE698164C (en) | 1940-11-02 |
| FR786938A (en) | 1935-09-14 |
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