GB1043416A - Improvements in the bleaching of polynosic viscose rayon fibres - Google Patents
Improvements in the bleaching of polynosic viscose rayon fibresInfo
- Publication number
- GB1043416A GB1043416A GB25810/63A GB2581063A GB1043416A GB 1043416 A GB1043416 A GB 1043416A GB 25810/63 A GB25810/63 A GB 25810/63A GB 2581063 A GB2581063 A GB 2581063A GB 1043416 A GB1043416 A GB 1043416A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rayon fibres
- hot water
- viscose rayon
- sulphuric acid
- solution containing
- 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
- D06L4/20—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which contain halogen
- D06L4/22—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which contain halogen using inorganic agents
- D06L4/24—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which contain halogen using inorganic agents using chlorites or chlorine dioxide
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Artificial Filaments (AREA)
Abstract
Polynosic viscose rayon fibres are bleached by wetting a bed of such rayon fibres for at least 20 seconds with an aqueous solution containing 0.05-10 grams per litre of an alkali metal chlorite and having a pH of 1-3 at a temperature of 30 DEG -80 DEG C. The aqueous solution may also contain 0.1-2% by weight of sulphuric acid and corrosion inhibiters, e.g. sodium nitrate. Freshly spun viscose rayon fibres may be introduced on to an endless stainless steel wire mesh belt and sprayed as they are moved along on the belt with a series of liquids, e.g. hot water, a 0.2% by weight caustic soda solution, hot water, aqueous chlorite solution containing sulphuric acid, hot water and ammonia, with squeezing between each liquid treatment, and then finished by washing, scouring and steaming and dried.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US20982662A | 1962-07-16 | 1962-07-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1043416A true GB1043416A (en) | 1966-09-21 |
Family
ID=22780458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB25810/63A Expired GB1043416A (en) | 1962-07-16 | 1963-06-28 | Improvements in the bleaching of polynosic viscose rayon fibres |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE635036A (en) |
| GB (1) | GB1043416A (en) |
-
0
- BE BE635036D patent/BE635036A/xx unknown
-
1963
- 1963-06-28 GB GB25810/63A patent/GB1043416A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE635036A (en) |
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