GB1336799A - Method of bleaching fibrous material containing amide groups - Google Patents

Method of bleaching fibrous material containing amide groups

Info

Publication number
GB1336799A
GB1336799A GB3767711A GB3767771A GB1336799A GB 1336799 A GB1336799 A GB 1336799A GB 3767711 A GB3767711 A GB 3767711A GB 3767771 A GB3767771 A GB 3767771A GB 1336799 A GB1336799 A GB 1336799A
Authority
GB
United Kingdom
Prior art keywords
fibrous material
aug
material containing
aqueous solution
amide groups
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
GB3767711A
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.)
BASF SE
Original Assignee
BASF SE
Badische Anilin and Sodafabrik 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 BASF SE, Badische Anilin and Sodafabrik AG filed Critical BASF SE
Publication of GB1336799A publication Critical patent/GB1336799A/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
    • D06L4/30—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using reducing agents

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Detergent Compositions (AREA)

Abstract

1336799 Bleaching BADISCHE ANILIN & SODA FABRIK AG 11 Aug 1971 [12 Aug 1970] 37677/71 Heading D1P Fibrous material based on amide, group containing constituents e.g. wool, silk, bristles, polycaprolactam and polyhexamethylene adipamide is bleached by treatment with an aqueous solution of the zinc salt of hydroxymethane sulphinic acid and a complexing agent e.g. the sodium salts of EDTA and nitrilotriacetic acid and polymeric phosphates at 70-100‹C and p.H 2-4. The aqueous solution may contain formaldehyde, trioxane, paraformaldehyde and hexamethylene tetramine as stabilizer. The p.H is adjusted with formic, acetic, sulphuric or phosphoric acid.
GB3767711A 1970-08-12 1971-08-11 Method of bleaching fibrous material containing amide groups Expired GB1336799A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702039992 DE2039992A1 (en) 1970-08-12 1970-08-12 Process for bleaching fibers containing amide groups

Publications (1)

Publication Number Publication Date
GB1336799A true GB1336799A (en) 1973-11-07

Family

ID=5779496

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3767711A Expired GB1336799A (en) 1970-08-12 1971-08-11 Method of bleaching fibrous material containing amide groups

Country Status (4)

Country Link
AU (1) AU455126B2 (en)
DE (1) DE2039992A1 (en)
FR (1) FR2102200B1 (en)
GB (1) GB1336799A (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB745941A (en) * 1953-06-22 1956-03-07 Harris Res Lab Inc Improvements in or relating to the bleaching of keratinous fibrous materials

Also Published As

Publication number Publication date
AU455126B2 (en) 1974-11-14
DE2039992A1 (en) 1972-02-17
FR2102200B1 (en) 1976-05-28
FR2102200A1 (en) 1972-04-07
AU3213671A (en) 1973-02-15

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees