GB169741A - Improvements relating to the treatment of cellulose acetate products - Google Patents

Improvements relating to the treatment of cellulose acetate products

Info

Publication number
GB169741A
GB169741A GB11886/20A GB1188620A GB169741A GB 169741 A GB169741 A GB 169741A GB 11886/20 A GB11886/20 A GB 11886/20A GB 1188620 A GB1188620 A GB 1188620A GB 169741 A GB169741 A GB 169741A
Authority
GB
United Kingdom
Prior art keywords
cellulose acetate
treatment
cellulose
agent
dyeing
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
GB11886/20A
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.)
British Celanese Ltd
Original Assignee
British Cellulose and Chemical Manufacturing Co 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 British Cellulose and Chemical Manufacturing Co Ltd filed Critical British Cellulose and Chemical Manufacturing Co Ltd
Priority to GB11886/20A priority Critical patent/GB169741A/en
Priority to FR534121D priority patent/FR534121A/en
Priority to US461978A priority patent/US1425364A/en
Publication of GB169741A publication Critical patent/GB169741A/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
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
    • D06P5/22—Effecting variation of dye affinity on textile material by chemical means that react with the fibre
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F2/00—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof
    • D01F2/24—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from cellulose derivatives
    • D01F2/28—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from cellulose derivatives from organic cellulose esters or ethers, e.g. cellulose acetate

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Coloring (AREA)

Abstract

For the purpose of rendering them amenable to dyeing, threads or fabrics containing cellulose acetates having 2-2 1/2 acetyl groups per cellulose molecule are treated, at temperatures between 40 DEG and 80 DEG C., with an alkaline saponifying agent, the quantity of which is restricted to that necessary to produce a diminution in weight of not more than 10 per cent in the cellulose acetate originally present. The saponification treatment may precede the dyeing operation, or they may be performed together in the same bath. As saponifying agent, caustic soda, caustic potash, or carbonate of soda may be employed, in concentration not greater than 1 per cent. Specifications 20672/10, 20977/11, 6463/15, 14101/15, 100,009, 125,153, and 158,340, [Class 15 (ii), Dyeing, Processes &c. for], are referred to. The Provisional Specification includes the treatment of any cellulose acetate lower than the triacetate, and states that the restricted saponification may also be effected by using excess of saponifying agent and limiting the time of action thereof.ALSO:For the purpose of rendering them amenable to dyeing, threads or fabrics containing cellulose acetates having 2-2 1/2 acetyl groups per cellulose molecule are treated, at temperatures between 40 DEG and 80 DEG C., with an alkaline saponifying-agent, the quantity of which is restricted to that necessary to produce a diminution in weight of not more than 10 per cent in the cellulose acetate originally present. The saponification treatment may precede the dyeing operation, or they may be performed together in the same bath. As saponifying-agent, caustic soda, caustic potash or carbonate of soda may be employed, in concentration not greater than 1 per cent; any dyes, such as substantive, acid, basic, vat or sulphur dyes, are applicable, either directly or with the use of mordants. Specifications 20672/10 and 20977/11, 6463/15, 14101/15, and 100,009, [all in Class 2 (ii), Cellulose &c.] and 125,153 are referred to. The Provisional Specification includes the treatment of any cellulose acetate lower than the triacelate and states that the restricted saponification may also be effected by using excess of saponifying agent and limiting the time of action thereof. Specification 158,340 is referred to.
GB11886/20A 1920-04-29 1920-04-29 Improvements relating to the treatment of cellulose acetate products Expired GB169741A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB11886/20A GB169741A (en) 1920-04-29 1920-04-29 Improvements relating to the treatment of cellulose acetate products
FR534121D FR534121A (en) 1920-04-29 1921-04-14 Improvements in the processing of cellullose acetate products
US461978A US1425364A (en) 1920-04-29 1921-04-16 Treatment of cellulose acetate products

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB11886/20A GB169741A (en) 1920-04-29 1920-04-29 Improvements relating to the treatment of cellulose acetate products
US461978A US1425364A (en) 1920-04-29 1921-04-16 Treatment of cellulose acetate products

Publications (1)

Publication Number Publication Date
GB169741A true GB169741A (en) 1921-09-29

Family

ID=26248592

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11886/20A Expired GB169741A (en) 1920-04-29 1920-04-29 Improvements relating to the treatment of cellulose acetate products

Country Status (3)

Country Link
US (1) US1425364A (en)
FR (1) FR534121A (en)
GB (1) GB169741A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2616779A (en) * 1949-10-21 1952-11-04 Canadian Celanese Ltd Process for simultaneously dyeing and partially saponifying cellulose acetate staple fibers

Also Published As

Publication number Publication date
US1425364A (en) 1922-08-08
FR534121A (en) 1922-03-18

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