US2254777A - Process of producing artificial staple fibers resembling wool - Google Patents

Process of producing artificial staple fibers resembling wool Download PDF

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Publication number
US2254777A
US2254777A US155576A US15557637A US2254777A US 2254777 A US2254777 A US 2254777A US 155576 A US155576 A US 155576A US 15557637 A US15557637 A US 15557637A US 2254777 A US2254777 A US 2254777A
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US
United States
Prior art keywords
staple fibers
wool
producing artificial
fibers
artificial staple
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
US155576A
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English (en)
Inventor
Esselmann Paul
Bitterfeld Kreis
Davidshofer Fritz
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.)
WALTHER H DUISBERG
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WALTHER H DUISBERG
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 WALTHER H DUISBERG filed Critical WALTHER H DUISBERG
Application granted granted Critical
Publication of US2254777A publication Critical patent/US2254777A/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

Definitions

  • the fibers are boiling point and subsequently decomposing the cut into staple lengths before the decomposition, freshly coagulated xanthate threads by subjectsince the fibers can then shrink more completely. ing said threads to the action of a medium having Obviously, however, the fiber can also be suba temperature of from about 90 to about 150 C. jected to decomposition and finished in its endless 2. A process of producing artificial staple fibers uncut state. The final fixing 0f the fibers ll).
  • the resembling W001 which comprises spinning V15- form of regenerated cellulose can be brought cose in a precipitating bath containing more than 9 in Venous Ways for example treatment 70 per cent of an alcohol of comparatively low with hot air, whereby at the same time the alcob 011m g point, cutting the freshly coagulated hol associated with the fiber is evaporated and can be recovered, or by treatment with a hot acid Xanthate threads mto Staples and Subsequently or a h t; San; Solution decomposing said threads by subjecting them to The finished, after-treated d dried fiber the action of a medium having a temperature of have the appearance of wool in respect of curlifrom about 90 to about 150 C.
  • a process of producing artificial staple fibers p p t e can be regulated y S ching them resembling wool, which comprises spinning visduring spinning, for example after they have left cose in a. precipitating bath containing more than the first precipitating bath or during the first 70 per cent of an alcohol of comparatively low decomposition of the xanthate.
  • the process may boiling point, cutting the freshly coagulated be conducted with the usual spinning nozzles xanthate threads into staples and subsequently having orifices of 0.07-0.09 mm.
  • Aprocess of producing artificial staple fibers may be from about 90 to 150 C., in some cases resembling wool, which comprises spinning visev her. cose containing 8 per cent cellulose and 8 per cent
  • the following example illustrates the invenalkali and having a salting point of 0.5 in a tion: precipitating bath comprising 90 per cent metha- Viscose having a content of cellulose of 8 per n01 and 10 per cent of water, cutting the freshly cent and a content of alkali of 8 per cent is coagulated xanthate threads into staples and deripened to a salt point of 0.5 and then spun in a composing said threads by means of a hot salt solution composed of per cent of methanol and solution having a temperature of about 103.
  • the freshly coagulated fibers are then cut into staple lengths and de- AU ESSELMANlfI. composed by means of a hot salt solution having FRITZ DAVIDSHOFER.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Artificial Filaments (AREA)
US155576A 1936-08-26 1937-07-24 Process of producing artificial staple fibers resembling wool Expired - Lifetime US2254777A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE218043X 1936-08-26

Publications (1)

Publication Number Publication Date
US2254777A true US2254777A (en) 1941-09-02

Family

ID=5831069

Family Applications (1)

Application Number Title Priority Date Filing Date
US155576A Expired - Lifetime US2254777A (en) 1936-08-26 1937-07-24 Process of producing artificial staple fibers resembling wool

Country Status (4)

Country Link
US (1) US2254777A (fr)
BE (1) BE423260A (fr)
CH (1) CH218043A (fr)
FR (1) FR825902A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2992880A (en) * 1955-07-12 1961-07-18 Courtaulds Ltd Manufacture of threads, fibres, filaments and the like from viscose

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3221827A1 (de) * 1982-06-09 1983-12-15 DSO Pharmachim, Sofija Biostimulierendes mittel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2992880A (en) * 1955-07-12 1961-07-18 Courtaulds Ltd Manufacture of threads, fibres, filaments and the like from viscose

Also Published As

Publication number Publication date
BE423260A (fr) 1937-09-30
FR825902A (fr) 1938-03-17
CH218043A (de) 1941-11-30

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