GB723566A - Improved method of bleaching textile materials - Google Patents

Improved method of bleaching textile materials

Info

Publication number
GB723566A
GB723566A GB9737/52A GB973752A GB723566A GB 723566 A GB723566 A GB 723566A GB 9737/52 A GB9737/52 A GB 9737/52A GB 973752 A GB973752 A GB 973752A GB 723566 A GB723566 A GB 723566A
Authority
GB
United Kingdom
Prior art keywords
vapour
washed
acid
bleaching
sodium
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
GB9737/52A
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.)
VAL MEHLER SEGELTUCHWEBEREI AG
Original Assignee
VAL MEHLER SEGELTUCHWEBEREI AG
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 VAL MEHLER SEGELTUCHWEBEREI AG filed Critical VAL MEHLER SEGELTUCHWEBEREI AG
Publication of GB723566A publication Critical patent/GB723566A/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
    • 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)
  • Treatment Of Fiber Materials (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)

Abstract

For bleaching purposes, textile material is impregnated with an alkali-metal chlorite solution and then subjected for a short period to the action of an acid vapour. The duration of the vapour treatment may be less than two minutes. The impregnating bath may comprise an aqueous solution of sodium chlorite and a wetting and/or cleansing agent at a pH of about 8.5 obtained by the addition of sodium phosphate or sodium hydroxide. The acid vapour may comprise water vapour and formic acid at a temperature of 100-105 DEG C. After the vapour treatment the material may be neutralized and washed or rinsed, alkaline boiled and washed. A preliminary alkaline boiling before bleaching is said to be unnecessary. The material may be cotton and may be treated continuously in full width or as yarns, card slivers, unspun uncombed fibres, or cross-wound bobbins.
GB9737/52A 1951-04-19 1952-04-17 Improved method of bleaching textile materials Expired GB723566A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM9241A DE941665C (en) 1951-04-19 1951-04-19 Process for bleaching textiles

Publications (1)

Publication Number Publication Date
GB723566A true GB723566A (en) 1955-02-09

Family

ID=6632973

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9737/52A Expired GB723566A (en) 1951-04-19 1952-04-17 Improved method of bleaching textile materials

Country Status (3)

Country Link
DE (1) DE941665C (en)
FR (1) FR1054662A (en)
GB (1) GB723566A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2900219A (en) * 1954-09-09 1959-08-18 Hoechst Ag Bleaching process by means of chlorites
US3065040A (en) * 1957-09-24 1962-11-20 Hoechst Ag Textile bleaching process using chlorite bleaching baths
US3120424A (en) * 1956-09-19 1964-02-04 Fmc Corp Continuous bleaching method with an alkali metal chlorite containing an activator salt
EP1979269A2 (en) * 2005-12-22 2008-10-15 Taiji Biomedical, Inc. Chlorite formulations, and methods of preparation and use thereof
CN113795626A (en) * 2019-05-10 2021-12-14 阿尔托大学基金会 Method for treating cellulosic material, method for preparing hydrolysed cellulosic material, use of chlorite and gaseous pressurised HCl, use of chlorous acid and hydrolysed cellulosic material

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE533155A (en) * 1953-11-17
DE1013253B (en) * 1954-09-11 1957-08-08 Hoechst Ag Method of bleaching with chlorites
BE545537A (en) * 1955-02-28

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2395305A (en) * 1942-10-26 1946-02-19 Mathieson Alkali Works Inc Chemical manufacture

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2900219A (en) * 1954-09-09 1959-08-18 Hoechst Ag Bleaching process by means of chlorites
US3120424A (en) * 1956-09-19 1964-02-04 Fmc Corp Continuous bleaching method with an alkali metal chlorite containing an activator salt
US3065040A (en) * 1957-09-24 1962-11-20 Hoechst Ag Textile bleaching process using chlorite bleaching baths
EP1979269A2 (en) * 2005-12-22 2008-10-15 Taiji Biomedical, Inc. Chlorite formulations, and methods of preparation and use thereof
EP1979269A4 (en) * 2005-12-22 2013-01-02 Taiji Biomedical Inc Chlorite formulations, and methods of preparation and use thereof
US8501244B2 (en) 2005-12-22 2013-08-06 Neuraltus Pharmaceuticals, Inc. Chlorite formulations and methods of preparation and use thereof
US9266734B2 (en) 2005-12-22 2016-02-23 Neuraltus Pharmaceuticals, Inc. Chlorite formulations and methods of preparation and use thereof
US9839650B2 (en) 2005-12-22 2017-12-12 Neuraltus Pharmaceuticals, Inc. Chlorite formulations, and methods of preparation and use thereof
CN113795626A (en) * 2019-05-10 2021-12-14 阿尔托大学基金会 Method for treating cellulosic material, method for preparing hydrolysed cellulosic material, use of chlorite and gaseous pressurised HCl, use of chlorous acid and hydrolysed cellulosic material
CN113795626B (en) * 2019-05-10 2024-06-07 阿尔托大学基金会 Method for treating cellulosic material, method for producing hydrolyzed cellulosic material, use of chlorite and gaseous pressurized HCl, use of chlorous acid and hydrolyzed cellulosic material

Also Published As

Publication number Publication date
DE941665C (en) 1956-04-19
FR1054662A (en) 1954-02-12

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