GB249845A - An improved method of manufacturing cuprammonium silk threads - Google Patents

An improved method of manufacturing cuprammonium silk threads

Info

Publication number
GB249845A
GB249845A GB7061/26A GB706126A GB249845A GB 249845 A GB249845 A GB 249845A GB 7061/26 A GB7061/26 A GB 7061/26A GB 706126 A GB706126 A GB 706126A GB 249845 A GB249845 A GB 249845A
Authority
GB
United Kingdom
Prior art keywords
ammonia
bath
metres
threads
coagulating
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
GB7061/26A
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.)
WANDA SCHULZ
Original Assignee
WANDA SCHULZ
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 WANDA SCHULZ filed Critical WANDA SCHULZ
Publication of GB249845A publication Critical patent/GB249845A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • D01F2/02—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from solutions of cellulose in acids, bases or salts
    • D01F2/04—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from solutions of cellulose in acids, bases or salts from cuprammonium solutions

Landscapes

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

Abstract

249,845. Schulz, W. March 26, 1925, [Convention date]. Ammoniacal copper cellulose solutions, processes for making filaments from.-To enable an aqueous solution of ammonia to be used a, the coagulating bath in the stretch spinning of cuprammonia cellulose silk, the bath is used at a temperature of 60-95‹ C. or the travel of the filaments in the bath is increased by employing a minimum distance of 1.5 metres, or both of these precautions are observed. In examples, the temperature of the bath which contains 1-2 per cent of ammonia, is 80‹ C., and a spinning length of 2.5 metres is employed. By the employment of aqueous ammonia solution as the coagulating-medium, it becomes possible to recover the ammonia; it is preferred to employ a bath containing not more than 3-4 per cent of ammonia. By this process the finest threads may be produced, the threads showing at the same time an improved tensile strength and a crosssection more nearly circular.
GB7061/26A 1925-03-26 1926-03-13 An improved method of manufacturing cuprammonium silk threads Expired GB249845A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE249845X 1925-03-26

Publications (1)

Publication Number Publication Date
GB249845A true GB249845A (en) 1927-05-12

Family

ID=5935846

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7061/26A Expired GB249845A (en) 1925-03-26 1926-03-13 An improved method of manufacturing cuprammonium silk threads

Country Status (2)

Country Link
DE (1) DE498158C (en)
GB (1) GB249845A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE961287C (en) * 1952-08-28 1957-04-04 Bayer Ag Process for the production of tubular hollow threads from copper oxide-ammonia-cellulose solutions

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL100700C (en) * 1956-05-11

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE961287C (en) * 1952-08-28 1957-04-04 Bayer Ag Process for the production of tubular hollow threads from copper oxide-ammonia-cellulose solutions

Also Published As

Publication number Publication date
DE498158C (en) 1930-05-19

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