GB478277A - Improvements in or relating to bleaching wild silk - Google Patents
Improvements in or relating to bleaching wild silkInfo
- Publication number
- GB478277A GB478277A GB19934/36A GB1993436A GB478277A GB 478277 A GB478277 A GB 478277A GB 19934/36 A GB19934/36 A GB 19934/36A GB 1993436 A GB1993436 A GB 1993436A GB 478277 A GB478277 A GB 478277A
- Authority
- GB
- United Kingdom
- Prior art keywords
- per cent
- sodium
- aqueous solution
- degummed
- washed
- 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
- 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
- D06L4/13—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which develop oxygen using inorganic agents
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Detergent Compositions (AREA)
Abstract
Degummed wild silk, e.g. tussah silk, is bleached by subjecting it to the action of an alkaline bleaching liquor, at an elevated temperature, e.g. 40--60 DEG C., and of pH preferably 9,0--10,5, containing hydrogen peroxide and an ammonium or alkali metal persulphate. Such bleaching may be preceded or followed by a supplementary bleach, e.g. a preliminary bleaching may be effected with a reducing agent such as sodium bisulphite or by adding some sodium peroxide to the scouring bath or an after-treatment may be effected with an alkali metal hydrosulphite. In examples: (1) tussah silk, degummed by treatment for 1 hour in an aqueous solution of soda ash and soap, is immersed for 6 hours in a 3 volume aqueous solution at 45 DEG C. of hydrogen peroxide, containing 1 per cent of potassium persulphate, 1 per cent of trisodium phosphate and 1 per cent of sodium silicate, washed, further treated for \ba1/2\be hour in an aqueous solution at 45 DEG C. of sodium hydrosulphite, washed and finished; (2) degummed and scoured tussah silk is treated for 1 hour in an aqueous solution at 90 DEG C. containing sodium carbonate, sodium peroxide and soap, immersed for 5 hours in a peroxide-persulphate solution as in (1), washed and finished; (3) tussah silk, degummed as in (1), is immersed for 6 hours in a 2 volume aqueous solution at 45 DEG C. of hydrogen peroxide containing 0,5 per cent of potassium persulphate, 0,5 per cent of trisodium phosphate and 1 per cent of sodium silicate, washed and finished. Specification 268,325, [Class 15 (i)], is referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB19934/36A GB478277A (en) | 1936-07-17 | 1936-07-17 | Improvements in or relating to bleaching wild silk |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB19934/36A GB478277A (en) | 1936-07-17 | 1936-07-17 | Improvements in or relating to bleaching wild silk |
Publications (1)
Publication Number | Publication Date |
---|---|
GB478277A true GB478277A (en) | 1938-01-17 |
Family
ID=10137561
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB19934/36A Expired GB478277A (en) | 1936-07-17 | 1936-07-17 | Improvements in or relating to bleaching wild silk |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB478277A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3843992A1 (en) * | 1988-12-27 | 1990-07-05 | Woellner Werke | Alkaline liquid concentrates containing active oxygen compounds, and their use |
CN102251388A (en) * | 2011-06-22 | 2011-11-23 | 西安工程大学 | Method for carrying out modification on real-silk fabrics by using butyl titanate |
CN105734867A (en) * | 2016-04-25 | 2016-07-06 | 桐乡市中泰纺织练染有限公司 | Method for directly refining silk fabrics |
CN106120162A (en) * | 2016-08-31 | 2016-11-16 | 横县桂华茧丝绸有限责任公司 | The silkworm silk that a kind of baby's silkworm silk quilt uses is continuous and preparation method thereof |
-
1936
- 1936-07-17 GB GB19934/36A patent/GB478277A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3843992A1 (en) * | 1988-12-27 | 1990-07-05 | Woellner Werke | Alkaline liquid concentrates containing active oxygen compounds, and their use |
CN102251388A (en) * | 2011-06-22 | 2011-11-23 | 西安工程大学 | Method for carrying out modification on real-silk fabrics by using butyl titanate |
CN105734867A (en) * | 2016-04-25 | 2016-07-06 | 桐乡市中泰纺织练染有限公司 | Method for directly refining silk fabrics |
CN106120162A (en) * | 2016-08-31 | 2016-11-16 | 横县桂华茧丝绸有限责任公司 | The silkworm silk that a kind of baby's silkworm silk quilt uses is continuous and preparation method thereof |
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