GB718563A - Process for bleaching cellulose fibres and textile products prepared therefrom - Google Patents

Process for bleaching cellulose fibres and textile products prepared therefrom

Info

Publication number
GB718563A
GB718563A GB19959/52A GB1995952A GB718563A GB 718563 A GB718563 A GB 718563A GB 19959/52 A GB19959/52 A GB 19959/52A GB 1995952 A GB1995952 A GB 1995952A GB 718563 A GB718563 A GB 718563A
Authority
GB
United Kingdom
Prior art keywords
bleaching
chlorite
solution
prepared therefrom
textile products
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
GB19959/52A
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.)
Evonik Operations GmbH
Original Assignee
Degussa GmbH
Deutsche Gold und Silber Scheideanstalt
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 Degussa GmbH, Deutsche Gold und Silber Scheideanstalt filed Critical Degussa GmbH
Publication of GB718563A publication Critical patent/GB718563A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H7/00—Construction or assembling of bulk storage containers employing civil engineering techniques in situ or off the site
    • E04H7/02—Containers for fluids or gases; Supports therefor
    • E04H7/18—Containers for fluids or gases; Supports therefor mainly of concrete, e.g. reinforced concrete, or other stone-like material
    • E04H7/20—Prestressed constructions
    • 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
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/12—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds
    • D21C9/14—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Textile Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Detergent Compositions (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Abstract

A process of bleaching cellulosic fibrous material comprises uniformly steeping the material in an aqueous solution of an alkali or alkaline-earth metal chlorite at a pH of 7.0 or above and, after freeing the material from excess chlorite solution, drying without an intermediate washing step. The bleaching bath may be a solution of sodium chlorite at a pH which is adjusted with acetic or formic acid to between 8.0 and 9.5 and may contain sodium bicarbonate, a sulphonated fatty compound, a fatty acid condensation product or a fatty alcohol sulphonate. Prior to bleaching the material may be cleaned. The material may be dried at 80 DEG to 95 DEG C. in a chamber into which hot air is blown. In examples regenerated cellulose staple fibre fleece, sliver and filaments are bleached and the temperature of the bleaching bath is between 20 DEG and 25 DEG C. or 50 DEG and 60 DEG C.
GB19959/52A 1951-09-24 1952-08-07 Process for bleaching cellulose fibres and textile products prepared therefrom Expired GB718563A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE718563X 1951-09-24

Publications (1)

Publication Number Publication Date
GB718563A true GB718563A (en) 1954-11-17

Family

ID=6626976

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19959/52A Expired GB718563A (en) 1951-09-24 1952-08-07 Process for bleaching cellulose fibres and textile products prepared therefrom

Country Status (4)

Country Link
BE (1) BE514367A (en)
FR (1) FR1062153A (en)
GB (1) GB718563A (en)
NL (1) NL79122C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1094697B (en) * 1959-06-25 1960-12-15 Kleinewefers Soehne J Process for bleaching textiles made from raw cotton

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1094697B (en) * 1959-06-25 1960-12-15 Kleinewefers Soehne J Process for bleaching textiles made from raw cotton

Also Published As

Publication number Publication date
NL79122C (en)
FR1062153A (en) 1954-04-20
BE514367A (en)

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