GB990181A - Process for continuous high-speed bleaching of cellulosic textiles - Google Patents
Process for continuous high-speed bleaching of cellulosic textilesInfo
- Publication number
- GB990181A GB990181A GB4350/62A GB435062A GB990181A GB 990181 A GB990181 A GB 990181A GB 4350/62 A GB4350/62 A GB 4350/62A GB 435062 A GB435062 A GB 435062A GB 990181 A GB990181 A GB 990181A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bleaching
- acid
- solution
- textiles
- weight
- 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
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B17/00—Storing of textile materials in association with the treatment of the materials by liquids, gases or vapours
- D06B17/02—Storing of textile materials in association with the treatment of the materials by liquids, gases or vapours in superimposed, i.e. stack-packed, form; J-boxes
-
- 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
-
- 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
- Y10S8/00—Bleaching and dyeing; fluid treatment and chemical modification of textiles and fibers
- Y10S8/06—Resin bleach
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Textile Engineering (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
- Treatment Of Fiber Materials (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
990,181. Bleaching cellulosic materials. OLIN MATHIESON CHEMICAL CORPORATION. Feb. 5, 1962 [Feb. 7,1961], No.4350/62. Headings D1L and D1P. Cellulosic textiles are bleached by a continuous, high-speed process at a rate of at least 5, 000 yards by a process comprising:- (A) continuously passing them through a dilute aqueous solution of a mineral acid having a concentration by weight of 0.1-2.0% and expressing the acid solution to 90-120% by weight of the textiles, (B) retaining them in an acidification zone for 5-60 minutes to effect uniform acidification of the solution on the textiles, (C) continuously washing them to remove excess acid and to produce textiles wet with a solution containing 0.01-0.25% of acid based on their dry weight, (D) continuously passing them through an acid aqueous solution containing 1-50 grams per litre of sodium chlorite at a pH of 3-5 at a temperature between room temperature and 110F. and expressing all but 90-120% of the aqueous bleaching solution to provide textiles wet with 0.1-1.5% of sodium chlorite based on their dry weight and (E) retaining them in a bleaching zone at a pH lower than 4 for 10-120 minutes at 180-212F. Suitable mineral acids are sulphic, hydrochloric and phosphoric acids. The bleaching solution may also contain sodium nitrate in the proportion of more than one mole of sodium nitrate per mole of sodium chlorite and 0.1-1% by weight of a surface-active agent, e.g. salts of acyl alkyl taurides, sulphated alcohols or alkyl aryl sulphonates. Fabrics comprising cotton, linen, jute, hemp or regenerated cellulose fibres alone or in admixture with nylon, polyester or polyacrylonitrile fibres may be treated. In the apparatus preferably used to carry out the process the fabric is passed through acid saturator 11, excess acid is remove by squeeze rollers 16 and the fabric is stacked into the longer arm of S-shoot 19 to provide time for the acidification of the fabric. It'is then washed in washers 22 and 25 squeezed by rollers 28 and passed through saturator 30 into which the chlorite solution is introduced via line 31. It is then squeezed by rollers 32 and held in the longer arm of S-shoot 35 heated by steam either by means of a jacket or direct steam lines (not shown) where bleaching takes place.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US87580A US3140146A (en) | 1961-02-07 | 1961-02-07 | Continuous process for chlorite bleaching of cellulosic textiles |
Publications (1)
Publication Number | Publication Date |
---|---|
GB990181A true GB990181A (en) | 1965-04-28 |
Family
ID=22206031
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4350/62A Expired GB990181A (en) | 1961-02-07 | 1962-02-05 | Process for continuous high-speed bleaching of cellulosic textiles |
Country Status (3)
Country | Link |
---|---|
US (1) | US3140146A (en) |
DE (1) | DE1419351A1 (en) |
GB (1) | GB990181A (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1419357A1 (en) * | 1960-08-29 | 1968-12-19 | Sando Ironworks Co Ltd | Process for cupping and bleaching textiles |
US3473884A (en) * | 1966-06-20 | 1969-10-21 | Nylonge Corp | Web treating method |
CN109975278B (en) * | 2019-03-04 | 2022-02-18 | 青岛大学 | Preparation method of special reagent for identifying plant dyed fibers and chemical dyed fibers |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE87402C1 (en) * | 1931-03-18 | 1936-09-15 | ||
US2194956A (en) * | 1939-01-10 | 1940-03-26 | Mathieson Alkali Works Inc | Bleaching pulp |
US2203212A (en) * | 1939-02-14 | 1940-06-04 | Niagara Alkali Company | Bleaching pulp |
GB552711A (en) * | 1940-09-18 | 1943-04-21 | Mathieson Alkali Works | Improvements in bleaching and finishing textiles |
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 |
US2602723A (en) * | 1949-09-20 | 1952-07-08 | Allied Chem & Dye Corp | Continuous hypochlorite process for bleaching cotton textiles |
NL74491C (en) * | 1949-12-27 | |||
BE557828A (en) * | 1956-09-19 |
-
1961
- 1961-02-07 US US87580A patent/US3140146A/en not_active Expired - Lifetime
-
1962
- 1962-02-05 GB GB4350/62A patent/GB990181A/en not_active Expired
- 1962-02-06 DE DE19621419351 patent/DE1419351A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
DE1419351A1 (en) | 1969-02-27 |
US3140146A (en) | 1964-07-07 |
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