GB990181A - Process for continuous high-speed bleaching of cellulosic textiles - Google Patents

Process for continuous high-speed bleaching of cellulosic textiles

Info

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
Application number
GB4350/62A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Olin Corp
Original Assignee
Olin Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Olin Corp filed Critical Olin Corp
Publication of GB990181A publication Critical patent/GB990181A/en
Expired legal-status Critical Current

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 110‹F. 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‹-212‹F. 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.
GB4350/62A 1961-02-07 1962-02-05 Process for continuous high-speed bleaching of cellulosic textiles Expired GB990181A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
DE1419351A1 (en) 1969-02-27
US3140146A (en) 1964-07-07

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