US2063209A - Process of making wool-like artificial fibers - Google Patents

Process of making wool-like artificial fibers Download PDF

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Publication number
US2063209A
US2063209A US26698A US2669835A US2063209A US 2063209 A US2063209 A US 2063209A US 26698 A US26698 A US 26698A US 2669835 A US2669835 A US 2669835A US 2063209 A US2063209 A US 2063209A
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US
United States
Prior art keywords
artificial fibers
making wool
alcohol
wool
ammonia
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
US26698A
Inventor
Weinberg Arthur Von
Rein Hanns
Eisenhut Otto
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie AG
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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Application granted granted Critical
Publication of US2063209A publication Critical patent/US2063209A/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
    • D01F11/00—Chemical after-treatment of artificial filaments or the like during manufacture
    • D01F11/02—Chemical after-treatment of artificial filaments or the like during manufacture of cellulose, cellulose derivatives, or proteins
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2922—Nonlinear [e.g., crimped, coiled, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2933—Coated or with bond, impregnation or core
    • Y10T428/2964—Artificial fiber or filament
    • Y10T428/2965—Cellulosic

Definitions

  • Our present invention relates to an improved process of making wool-like artificial fibers.
  • the present invention relates to an improvement of said process in accordance with which the particular procedure of desulfurization and the use of corresponding after treatment baths can be avoided.
  • the present improved process comprises carrying out a treatment with the said 20 organic liquids capable of dissolving water in the presence of a volatile base.
  • the fibrous material may be treated in a plurality of baths of increasing strength as regards the said organic liquids and small quantities for instance 25 of ammonia may be added to the first bath of the lowest strength.
  • a. suitable viscose material is washed with water and the excess of adherent water is removed by squeezing or centrifuging.
  • the material is immediately subjected to the treatment with ethyl alcohol.
  • the first bath contains an alcohol of 35% strength, to which 1 to 10% of ammonia have been added and without any other intermediate treatment the material is manipulatedin further baths of an increasing strength of alcohol but free from ammonia.
  • the adherent solvent is removed by squeezing or centrifuging and the residual alcohol is recovered in the known manner.
  • the baths are combined together by overflow apparatus so that continuously the alcohol runs through all of the baths in counter-current to the fibrous material thereby showing a decreasing concentration and to the last bath containing the alcohol in the most dilute state, to which the material enters at first, ammonia is added.
  • An improved process of making wool-like artificial fibers which comprises treating moist viscose material which has not been desulfurized with an organic liquid capable of dissolving water to which a little quantity of an ammonia base has been added.
  • An improved process of making wool-like artificial fibers which comprises treating moist viscose material which has not been desulfurized with alcohol to which a little quantity of an ammonia base has been added.
  • An improved process of making wool-like artificial fibers which comprises treating moist viscose material which has not been desulfurized with a plurality of baths containing alcohol of increasing strength, to the first of which of the lowest strength ammonia has been added.

Description

Patented Dec. 8, 1936 UNITED STATES PATENT OFFICE PROCESS OF MAKING WOOL-LIKE ARTIFICIAL FIBERS No Drawing. Application June 14, 1935, Serial No. 26,698. In Germany June 26, 1934 3 Claims.
Our present invention relates to an improved process of making wool-like artificial fibers.
According to our application Serial No. 757,372 filed December 13, 1934, a spun material obtained 5 by using a viscose ripened below the usual ripeness corresponding with ammonium chloride number of 7 to 6 (Hottenroth number) is converted to a new species of wool-like artificial fibers by treating it according to our application Serial No. 705,474 filed January 5, 1934 in a wet condition with organic liquids capable of dissolving water until the treated fibers still contain the so called molecular water usually present in commercial brands.
The present invention relates to an improvement of said process in accordance with which the particular procedure of desulfurization and the use of corresponding after treatment baths can be avoided. The present improved process comprises carrying out a treatment with the said 20 organic liquids capable of dissolving water in the presence of a volatile base. Advantageously the fibrous material may be treated in a plurality of baths of increasing strength as regards the said organic liquids and small quantities for instance 25 of ammonia may be added to the first bath of the lowest strength.
By the present combination of desulfurization and drying processes the whole procedure of manufacture is substantially simplified and the re- 30 action products are formed by a particularly economic method.
As an example a. suitable viscose material is washed with water and the excess of adherent water is removed by squeezing or centrifuging.
35 Then the material is immediately subjected to the treatment with ethyl alcohol. The first bath contains an alcohol of 35% strength, to which 1 to 10% of ammonia have been added and without any other intermediate treatment the material is manipulatedin further baths of an increasing strength of alcohol but free from ammonia. After passing through the last bath consisting for example of an alcohol of 92% strength, the adherent solvent is removed by squeezing or centrifuging and the residual alcohol is recovered in the known manner.
Advantageously the baths are combined together by overflow apparatus so that continuously the alcohol runs through all of the baths in counter-current to the fibrous material thereby showing a decreasing concentration and to the last bath containing the alcohol in the most dilute state, to which the material enters at first, ammonia is added.
We claim:
1. An improved process of making wool-like artificial fibers which comprises treating moist viscose material which has not been desulfurized with an organic liquid capable of dissolving water to which a little quantity of an ammonia base has been added.
2. An improved process of making wool-like artificial fibers which comprises treating moist viscose material which has not been desulfurized with alcohol to which a little quantity of an ammonia base has been added.
3. An improved process of making wool-like artificial fibers which comprises treating moist viscose material which has not been desulfurized with a plurality of baths containing alcohol of increasing strength, to the first of which of the lowest strength ammonia has been added.
ARTHUR VON WEINBERG. HANNS REIN. OTTO EISENHUT.
US26698A 1933-01-17 1935-06-14 Process of making wool-like artificial fibers Expired - Lifetime US2063209A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE215380X 1933-01-17
DE2109307X 1933-12-29
DE2063209X 1934-06-26

Publications (1)

Publication Number Publication Date
US2063209A true US2063209A (en) 1936-12-08

Family

ID=32033831

Family Applications (3)

Application Number Title Priority Date Filing Date
US705474A Expired - Lifetime US2109306A (en) 1933-01-17 1934-01-05 Wool-like artificial fibers and process of making same
US757372A Expired - Lifetime US2109307A (en) 1933-01-17 1934-12-13 Process of making wool-like artificial fibers
US26698A Expired - Lifetime US2063209A (en) 1933-01-17 1935-06-14 Process of making wool-like artificial fibers

Family Applications Before (2)

Application Number Title Priority Date Filing Date
US705474A Expired - Lifetime US2109306A (en) 1933-01-17 1934-01-05 Wool-like artificial fibers and process of making same
US757372A Expired - Lifetime US2109307A (en) 1933-01-17 1934-12-13 Process of making wool-like artificial fibers

Country Status (6)

Country Link
US (3) US2109306A (en)
BE (1) BE400704A (en)
CH (1) CH215380A (en)
FR (3) FR766404A (en)
GB (2) GB424229A (en)
NL (4) NL20892C (en)

Also Published As

Publication number Publication date
FR46362E (en) 1936-06-02
CH215380A (en) 1941-06-30
NL20892C (en)
NL44164C (en)
FR766404A (en) 1934-06-28
GB435968A (en) 1935-10-02
US2109306A (en) 1938-02-22
GB424229A (en) 1935-02-18
NL42289C (en)
BE400704A (en)
FR45680E (en) 1935-11-13
NL38746C (en)
US2109307A (en) 1938-02-22

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