US1855963A - Uniform dyeing of viscose - Google Patents

Uniform dyeing of viscose Download PDF

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Publication number
US1855963A
US1855963A US321513A US32151328A US1855963A US 1855963 A US1855963 A US 1855963A US 321513 A US321513 A US 321513A US 32151328 A US32151328 A US 32151328A US 1855963 A US1855963 A US 1855963A
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United States
Prior art keywords
viscose
uniform dyeing
sulfonic acid
dyeing
dyed
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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
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US321513A
Inventor
Hentrich Winfrid
Hilger Josef
Knoche Rudolf
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General Aniline Works Inc
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General Aniline Works Inc
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B31/00—Disazo and polyazo dyes of the type A->B->C, A->B->C->D, or the like, prepared by diazotising and coupling
    • C09B31/02—Disazo dyes
    • C09B31/025—Disazo dyes containing acid groups, e.g. -COOH, -SO3H, -PO3H2, -OSO3H, -OPO2H2; Salts thereof
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S8/00—Bleaching and dyeing; fluid treatment and chemical modification of textiles and fibers
    • Y10S8/916—Natural fiber dyeing
    • Y10S8/918—Cellulose textile

Definitions

  • the present inventiolr relates to uniformly dyed viscose silk of different origin.
  • the dyeings thus obtained are distinguished by their uniformity and fastness to light.
  • oc.m on g are dissolved in 300 parts of hot water.
  • Knitted viscose is dyed at 80 C. in this bath for about one hour in the presence of 20% of sodium sulfate and 2% of Monopole soap (calculated on the weight of the material).
  • a beautiful powerful blue dyeing is obtained, extremely uniform both in deep and pale shades and of very satisfactory fastness to light.
  • Example 2 The known dyest'uff from 4-an1ino-acetanilide-3-sulfonic acid, 1-amino-' 2 ethoxynaphthalene 6 sulfonic acid and 1 acetylamino-8-hydroxynaphthalene-e-sulfonic acid having in its free state the follow- 1 ing formula:
  • R stands for a radical of the benzene or naphthalene series and R stands for the radical of an aminonaphthalenesulfonic acid or an aminonaphtholsulfonic acid, the dyeings being distinguished by their uniformity and fastness to light.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Coloring (AREA)

Description

Patented Apr. 26, 1932 UNITED. STATES PATENT OFFICE,
MULHEIM, ANZD RUDOLF KNOCHE, OF
LEVERKUSEN-ON-THE RHINE, GERMANY,
ASSIGNORS TO GENERAL ANILINE WORKS, 1110., OF NEW YORK, N. Y., A. CORPORA- TIOIN' OF DELAWARE UNIFORM DYEING or VISCOSE No Drawing. Application'filed November 23, 1928, Serial No. 321,513 and in Germany December 2, 1927.
The present inventiolrrelates to uniformly dyed viscose silk of different origin.
It is known that it is very difiicult to obtain even shades in the dyeing of viscose of difl'erent origin, for example of knitted artificial silk.
According to the present invention, these dlfiiculties are overcome .by dyeing viscose with a-secondary disazo dyestuff of the general formula:
O-GIH R1 -N=N N=N-n, I
80C., at which temperatures the viscose is dyed for about 3/; to 1 hour. Then the viscose is washed and dried.
The dyeings thus obtained are distinguished by their uniformity and fastness to light.
The invention is illustrated by the following examples, without being limited thereto:
wample 1.'10 parts by weight of the secondary disazo dyestufi from 4-amino-1- methylbenzene-3-sulfonic acid, 1-amino-2- ethoXy naphthalene 6-sulfonic acid and l-hydroXy-naphthalene-l-sulfonic acid having in its free state the following formula:
oc.m on g are dissolved in 300 parts of hot water.
Knitted viscose is dyed at 80 C. in this bath for about one hour in the presence of 20% of sodium sulfate and 2% of Monopole soap (calculated on the weight of the material). Thus a beautiful powerful blue dyeing is obtained, extremely uniform both in deep and pale shades and of very satisfactory fastness to light.
Example 2.-The known dyest'uff from 4-an1ino-acetanilide-3-sulfonic acid, 1-amino-' 2 ethoxynaphthalene 6 sulfonic acid and 1 acetylamino-8-hydroxynaphthalene-e-sulfonic acid having in its free state the follow- 1 ing formula:
OCzHl 80.11 on undo-.03.
viscose a beautiful uniform bluish green shade of satisfactory fastness to light.
We claim:
1. As new articles of manufacture knitted viscose dyed with a dyestufi of the general formula:
in which R stands for a radical of the benzene or naphthalene series and R stands for the radical of an aminonaphthalenesulfonic acid or an aminonaphtholsulfonic acid, the dyeings being distinguished by their uniformity and fastness to light.
2. As new articles of manufacture knitted viscose dyed with the dyestuif of the following formula:
O.CzHs $11 OHs-QN=N 03H I the blue dyeings being distinguished by their uniformity and fastness to light.
In testimony whereof We have hereunto set our hands.
WINFRID HENTRICH. [1 s.] JOSEF HILGER. [L.s.] RUDOLF KN OCHE. [L. s.]
US321513A 1927-12-02 1928-11-23 Uniform dyeing of viscose Expired - Lifetime US1855963A (en)

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Application Number Priority Date Filing Date Title
DE1855963X 1927-12-02

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2420630A (en) * 1942-08-15 1947-05-13 Eastman Kodak Co Disazo dye compounds
US2705708A (en) * 1951-08-16 1955-04-05 Geigy Ag J R Disazo dyestuffs
US3002964A (en) * 1957-04-29 1961-10-03 Ilford Ltd Colour photography

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2420630A (en) * 1942-08-15 1947-05-13 Eastman Kodak Co Disazo dye compounds
US2705708A (en) * 1951-08-16 1955-04-05 Geigy Ag J R Disazo dyestuffs
US3002964A (en) * 1957-04-29 1961-10-03 Ilford Ltd Colour photography

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