GB785232A - Recovery of waste textile fibres - Google Patents

Recovery of waste textile fibres

Info

Publication number
GB785232A
GB785232A GB5936/55A GB593655A GB785232A GB 785232 A GB785232 A GB 785232A GB 5936/55 A GB5936/55 A GB 5936/55A GB 593655 A GB593655 A GB 593655A GB 785232 A GB785232 A GB 785232A
Authority
GB
United Kingdom
Prior art keywords
per cent
alcohols
iso
butyl
ketone
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
GB5936/55A
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.)
Chicopee Manufacturing Corp
Original Assignee
Chicopee Manufacturing 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 Chicopee Manufacturing Corp filed Critical Chicopee Manufacturing Corp
Publication of GB785232A publication Critical patent/GB785232A/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
    • D06L1/00—Dry-cleaning or washing fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods
    • D06L1/12—Dry-cleaning or washing fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods using aqueous solvents
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
    • D04H1/587—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives characterised by the bonding agents used
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
    • D04H1/64—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)

Abstract

A process for the recovery of waste cellulosic textile fibres, which have previously been impregnated with a copolymer of vinyl chloride and methyl acrylate in which the vinyl chloride content is at least 70 per cent, consists in removing the copolymer by heating the waste textile at a temperature of 225-275 DEG F. for 3-5 hours with an aqueous solution containing at least 2 per cent of a dissolved aliphatic alcohol or ketone and at least 1.75 per cent of an alkali metal hydroxide, the ratio of the weights of treating solution to textile being at least 7 : 1. Any of the alcohols up to and including the butyl alcohols may be used, as may also iso-amyl, n-hexyl, and iso-octyl alcohols; suitable ketones are methyl ethyl ketone and methyl iso-butyl ketone. Dihydroxy alcohols such as ethylene and propylene glycols are also suitable. Preferably, the mixture is circulated in a closed kier at a temperature of 240-260 DEG F., the solution containing not more than 3 per cent of n-butyl or isopropyl alcohol and about 3 per cent of sodium or potassium hydroxide. Under these conditions, the polymer may be removed by the solution in 3 hours, and the comparatively low temperature prevents any appreciable degradation of the cellulose.ALSO:A process for the recovery of waste cellulosic textile fibres, which have previously been impregnated with a copolymer of vinyl chloride and methyl acrylate in which the vinyl chloride content is at least 70 per cent, comprises removing the copolymer by heating the waste textile at a temperature of 225-275 DEG F. for 3-5 hours with an aqueous solution containing at least 2 per cent of a dissolved aliphatic alcohol or ketone and at least 1.75 per cent of an alkali metal hydroxide, the ratio of the weights of treating solution to textile being at least 7 : 1. Any of the alcohols up to and including the butyl alcohols may be used, as may also isoamyl, n-hexyl, and iso-octyl alcohols; suitable ketones are methyl ethyl ketone and methyl iso-butyl ketone. Dihydroxy alcohols such as ethylene and propylene glycols are also suitable. Preferably, the mixture is circulated in a closed kier at a temperature of 240-260 DEG F., the solution containing not more than 3 per cent of n-butyl or iso-propyl alcohol and about 3 per cent of sodium or potassium hydroxide. Under these conditions the polymer may be removed by dissolution in 3 hours, and the comparatively low temperature prevents any appreciable degradation of the cellulose.
GB5936/55A 1954-03-01 1955-02-28 Recovery of waste textile fibres Expired GB785232A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US785232XA 1954-03-01 1954-03-01

Publications (1)

Publication Number Publication Date
GB785232A true GB785232A (en) 1957-10-23

Family

ID=22144562

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5936/55A Expired GB785232A (en) 1954-03-01 1955-02-28 Recovery of waste textile fibres

Country Status (1)

Country Link
GB (1) GB785232A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3960485A (en) * 1974-06-19 1976-06-01 Monsanto Company Process for recovery and reuse of textile size

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3960485A (en) * 1974-06-19 1976-06-01 Monsanto Company Process for recovery and reuse of textile size

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