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GB1071494A - Improvements in or relating to bleaching - Google Patents

Improvements in or relating to bleaching

Info

Publication number
GB1071494A
GB1071494A GB15128/63A GB1512863A GB1071494A GB 1071494 A GB1071494 A GB 1071494A GB 15128/63 A GB15128/63 A GB 15128/63A GB 1512863 A GB1512863 A GB 1512863A GB 1071494 A GB1071494 A GB 1071494A
Authority
GB
United Kingdom
Prior art keywords
solution
amine
chlorite
sodium
integer
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
GB15128/63A
Inventor
Roland Albert Leigh
Louis Chesner
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.)
Evonik LCL Ltd
Original Assignee
Laporte Chemicals Ltd
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 Laporte Chemicals Ltd filed Critical Laporte Chemicals Ltd
Priority to GB15128/63A priority Critical patent/GB1071494A/en
Publication of GB1071494A publication Critical patent/GB1071494A/en
Expired legal-status Critical Current

Links

Classifications

    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06LDRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
    • D06L4/00Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
    • D06L4/20Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which contain halogen
    • D06L4/22Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which contain halogen using inorganic agents
    • D06L4/24Bleaching 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
    • D06L4/26Bleaching 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 combined with specific additives

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Abstract

Textile materials, e.g. cotton fabrics, are bleached by treating them with an aqueous solution containing alkali or alkaline earth metal chlorite and at least one amine having the formula <FORM:1071494/D1-D2/1> in which x is an integer from 2 to 6, y is an integer from 1-5, R is H or -CH3 and Z is -NH2, -NHCH3, -OH or H, and having a pH of at least 8.5, separating them from the bulk of the solution and heating them while in the wet state, preferably at 60 DEG -100 DEG C. The materials may be impregnated with the bleaching solutions, squeezed, rolled up and steamed for 1-4 hours. The solution preferably contains 10-30g/l of the chlorite, e.g. sodium, potassium or calcium chlorite. Specified amines are hexamethylene diamine, ethylene diamine, diethylene triamine, triethylene tetramine, tetraethylene pentamine, propylene diamine and dipropylene triamine. The amine may be present in the composition in a concentration of less than 77% based on the weight of the chlorite. The solution may also contain an amine salt which may be added as such or formed in situ by adding to the solution containing the amine an acid, e.g. hydrochloric, formic or acetic acid, in a quantity such that some free amine remains in the solution and the solution has a pH of at least 8.5, optical brightening agents, e.g. stilbene derivatives, wetting agents, e.g. sodium diisobutyl naphthalene sulphonate, and buffers providing a buffer capacity in the range of pH from 3.5 to 6, e.g. potassium hydrogen phthalate and sodium formate.
GB15128/63A 1963-04-17 1963-04-17 Improvements in or relating to bleaching Expired GB1071494A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB15128/63A GB1071494A (en) 1963-04-17 1963-04-17 Improvements in or relating to bleaching

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB15128/63A GB1071494A (en) 1963-04-17 1963-04-17 Improvements in or relating to bleaching

Publications (1)

Publication Number Publication Date
GB1071494A true GB1071494A (en) 1967-06-07

Family

ID=10053542

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15128/63A Expired GB1071494A (en) 1963-04-17 1963-04-17 Improvements in or relating to bleaching

Country Status (1)

Country Link
GB (1) GB1071494A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4332691A (en) 1980-04-11 1982-06-01 Lever Brothers Company Bleaching liquid cleaning composition
US4353866A (en) 1980-11-05 1982-10-12 The Procter & Gamble Company Activation of hypochlorite bleaching of dyes
US4384869A (en) 1980-11-05 1983-05-24 The Procter & Gamble Company Activation of hypochlorite bleaching of dyes
US4390441A (en) 1980-04-11 1983-06-28 Lever Brothers Company Machine dishwashing composition
US4420412A (en) * 1980-11-05 1983-12-13 The Procter & Gamble Company Activation of hypochlorite bleaching of dyes

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4332691A (en) 1980-04-11 1982-06-01 Lever Brothers Company Bleaching liquid cleaning composition
US4390441A (en) 1980-04-11 1983-06-28 Lever Brothers Company Machine dishwashing composition
US4353866A (en) 1980-11-05 1982-10-12 The Procter & Gamble Company Activation of hypochlorite bleaching of dyes
US4384869A (en) 1980-11-05 1983-05-24 The Procter & Gamble Company Activation of hypochlorite bleaching of dyes
US4420412A (en) * 1980-11-05 1983-12-13 The Procter & Gamble Company Activation of hypochlorite bleaching of dyes

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