US2953426A - Production of shaped objects from viscose - Google Patents

Production of shaped objects from viscose Download PDF

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Publication number
US2953426A
US2953426A US542767A US54276755A US2953426A US 2953426 A US2953426 A US 2953426A US 542767 A US542767 A US 542767A US 54276755 A US54276755 A US 54276755A US 2953426 A US2953426 A US 2953426A
Authority
US
United States
Prior art keywords
viscose
production
bath
shaped objects
threads
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 - Lifetime
Application number
US542767A
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English (en)
Inventor
Welfers Egidius
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.)
Akzona Inc
Original Assignee
American Enka 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 American Enka Corp filed Critical American Enka Corp
Priority to US850009A priority Critical patent/US2953468A/en
Application granted granted Critical
Publication of US2953426A publication Critical patent/US2953426A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • D01F2/06—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from viscose
    • D01F2/08—Composition of the spinning solution or the bath
    • D01F2/10—Addition to the spinning solution or spinning bath of substances which exert their effect equally well in either

Definitions

  • This invention relates to a process for the production from viscose of artificial threads and other shaped objects, including films, having greatly improved properties as regards their resilience and their smaller degree of swelling.
  • the invention also relates to the resulting products.
  • One of the principal objects of the present invention is to provide a new and improved method for spinning artificial products such as threads and other shaped objects from viscose in such manner as to confer upon them greatly improved properties as regards their strength and elasticity.
  • a further object of the invention is to provide a new and improved method for producing products of the kind just indicated having unusually strong and welldefined peripheral zones.
  • a still further object of the invention is to provide improved products of the kind indicated.
  • the viscoses chosen may be those having a conventional composition with about 8% of cellulose and 6% of NaOH. It is desirable to use unripe viscoses, for example, those with a gamma value of 42 and higher.
  • the spinning baths preferably have substantially the following composition: 40-65 g./l. H SO 160-260 g./l of Na SO and more than 30 g./l. ZnSO ICC
  • the bath temperature chosen is between 50 and C.
  • the threads are subjected to a stretching by 120% in a second hot bath which may contain sulphuric acid.
  • the threads have strength values of 40 g./ 100 den.
  • Example 1 A viscose having the composition of 8.4% of cellulose, 5.8% of NaOH and 40% of CS prepared from linters, with a content of 0.14% of hydrazine (calculated on the viscose) is spun at a gamma number of 43 in a bath with the following composition: 65 g./l. of sulphuric acid, 246 g./l. of sodium sulphate and 48 g./l. of zinc sulphate. The temperature is 55 C. and the immersion path 45 cm. The withdrawal speed is about 40 m./min. The spun material is thereafter stretched by in a second bath which contains 15 g./l. of H SO and has a temperature of C. The thread has a strength of 395 g./ den. with an elongation of 18%; the degree of swelling is about 80%.
  • a process for the production of regenerated cellulose threads from viscose comprising incorporating into viscose 0.10.8% by weight based on the viscose of hydrazine, extruding the resulting viscose into an aqueous bath containing more than 30 g./l. of zinc sulphate and 4065% g./l. of sulphuric acid, and treating the resulting extruded object in a hot second bath and stretching same by a factor of 80-120%.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Artificial Filaments (AREA)
US542767A 1954-11-25 1955-10-25 Production of shaped objects from viscose Expired - Lifetime US2953426A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US850009A US2953468A (en) 1955-10-25 1959-10-21 Production of shaped objects from viscose

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE339696X 1954-11-25

Publications (1)

Publication Number Publication Date
US2953426A true US2953426A (en) 1960-09-20

Family

ID=6223907

Family Applications (1)

Application Number Title Priority Date Filing Date
US542767A Expired - Lifetime US2953426A (en) 1954-11-25 1955-10-25 Production of shaped objects from viscose

Country Status (6)

Country Link
US (1) US2953426A (US07696358-20100413-C00002.png)
BE (1) BE540589A (US07696358-20100413-C00002.png)
CH (1) CH339696A (US07696358-20100413-C00002.png)
FR (1) FR1139303A (US07696358-20100413-C00002.png)
GB (1) GB778374A (US07696358-20100413-C00002.png)
NL (2) NL85457C (US07696358-20100413-C00002.png)

Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2077412A (en) * 1930-06-04 1937-04-20 Eugene J Lorand Process for the preparation of a molded cellulose foam from viscose and product thereof
US2284028A (en) * 1939-09-26 1942-05-26 Ubbelohde Leo Dry spinning process
US2506249A (en) * 1943-04-02 1950-05-02 American Enka Corp Process for manufacturing artificial chamois
US2516316A (en) * 1949-07-14 1950-07-25 Du Pont Borax spinning bath
US2535044A (en) * 1947-04-26 1950-12-26 Du Pont Spinning of viscose
US2593466A (en) * 1948-07-16 1952-04-22 Ind Rayon Corp Viscose spinning solution
US2648611A (en) * 1947-11-19 1953-08-11 American Viscose Corp Addition of urea to viscose
US2705184A (en) * 1949-08-25 1955-03-29 Textile & Chemical Res Company Process for the production of rayon products
US2732279A (en) * 1951-12-07 1956-01-24 Shozo tachikawa
US2772444A (en) * 1954-08-12 1956-12-04 Du Pont Composition comprising a polyhalogenated ethylene polymer and viscose and process of shaping the same
US2784107A (en) * 1951-12-13 1957-03-05 Courtaulds Ltd Production of artificial filaments, threads and the like
US2796319A (en) * 1954-04-02 1957-06-18 Schweizerische Viscose Viscose spinning process
US2810658A (en) * 1954-08-16 1957-10-22 Du Pont Process for spinning modified viscose solution
US2847272A (en) * 1953-06-25 1958-08-12 Courtaulds Ltd Production of artificial filaments, threads and the like
US2884332A (en) * 1953-04-30 1959-04-28 Saul & Co Printing of textile materials and preparations therefor
US2892729A (en) * 1954-11-03 1959-06-30 American Viscose Corp Process of producing viscose rayon

Patent Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2077412A (en) * 1930-06-04 1937-04-20 Eugene J Lorand Process for the preparation of a molded cellulose foam from viscose and product thereof
US2284028A (en) * 1939-09-26 1942-05-26 Ubbelohde Leo Dry spinning process
US2506249A (en) * 1943-04-02 1950-05-02 American Enka Corp Process for manufacturing artificial chamois
US2535044A (en) * 1947-04-26 1950-12-26 Du Pont Spinning of viscose
US2648611A (en) * 1947-11-19 1953-08-11 American Viscose Corp Addition of urea to viscose
US2593466A (en) * 1948-07-16 1952-04-22 Ind Rayon Corp Viscose spinning solution
US2516316A (en) * 1949-07-14 1950-07-25 Du Pont Borax spinning bath
US2705184A (en) * 1949-08-25 1955-03-29 Textile & Chemical Res Company Process for the production of rayon products
US2732279A (en) * 1951-12-07 1956-01-24 Shozo tachikawa
US2784107A (en) * 1951-12-13 1957-03-05 Courtaulds Ltd Production of artificial filaments, threads and the like
US2884332A (en) * 1953-04-30 1959-04-28 Saul & Co Printing of textile materials and preparations therefor
US2847272A (en) * 1953-06-25 1958-08-12 Courtaulds Ltd Production of artificial filaments, threads and the like
US2796319A (en) * 1954-04-02 1957-06-18 Schweizerische Viscose Viscose spinning process
US2772444A (en) * 1954-08-12 1956-12-04 Du Pont Composition comprising a polyhalogenated ethylene polymer and viscose and process of shaping the same
US2810658A (en) * 1954-08-16 1957-10-22 Du Pont Process for spinning modified viscose solution
US2892729A (en) * 1954-11-03 1959-06-30 American Viscose Corp Process of producing viscose rayon

Also Published As

Publication number Publication date
CH339696A (de) 1959-07-15
NL200062A (US07696358-20100413-C00002.png) 1900-01-01
BE540589A (US07696358-20100413-C00002.png) 1900-01-01
FR1139303A (fr) 1957-06-27
GB778374A (en) 1957-07-03
NL85457C (US07696358-20100413-C00002.png) 1900-01-01

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