GB429209A - Improvements relating to processes of dyeing with direct dyestuffs - Google Patents

Improvements relating to processes of dyeing with direct dyestuffs

Info

Publication number
GB429209A
GB429209A GB437934A GB437934A GB429209A GB 429209 A GB429209 A GB 429209A GB 437934 A GB437934 A GB 437934A GB 437934 A GB437934 A GB 437934A GB 429209 A GB429209 A GB 429209A
Authority
GB
United Kingdom
Prior art keywords
direct
cotton
dyeing
fastness
treatment
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
GB437934A
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.)
BASF Schweiz AG
Original Assignee
Gesellschaft fuer Chemische Industrie in Basel CIBA
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 Gesellschaft fuer Chemische Industrie in Basel CIBA filed Critical Gesellschaft fuer Chemische Industrie in Basel CIBA
Priority to GB437934A priority Critical patent/GB429209A/en
Publication of GB429209A publication Critical patent/GB429209A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
    • D06P1/52—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing synthetic macromolecular substances
    • D06P1/56—Condensation products or precondensation products prepared with aldehydes

Abstract

Substantive dyes, dyeing with; regenerated celluloses, dyeing; printing.--The fastness to washing of dyeings or prints of direct dyestuffs on cellulosic fibres is increased by a subsequent treatment with a condensation product of urea or a derivative thereof with formaldehyde followed by heat or other treatment to convert the condensation product into the insoluble condition. The fastness to light is also increased even when the final hardening step is replaced by a simple drying. Specified cellulosic fibres are cotton, linen, jute, ramie and regenerated cellulose artificial silk. Specified condensation products are those of formaldehyde with urea or a homologue thereof, thiourea, dicyandiamide, biuret, guanidine, guanylurea, cyanuric acid or mixtures thereof. The following examples are specified; (1) Cotton fabric, dyed a deep blue-red by treatment for 45 minutes in a boiling bath containing direct violet R and common salt, rinsing and drying, is immersed at room temperature in a 15 per cent solution of dimethylolurea, pressed until the weight is double that of the original fabric, dried and heated for 2 minutes at 165 DEG C.; the dyeing is fast to washing and to soap. (2) Cotton fabric, dyed with Cotton yellow CH, Direct fast scarlet SE or Direct sky blue (greenish), is impregnated by immersion at room temperature in a 15 per cent solution of dimethylolurea of pH=4,5, pressed until the weight is double that of the original fabric, dried and heated for 2 minutes at 160 DEG C.; a table is given showing the effect on the fastness of the dyeings to water and washing. (3) Cotton fabric, dyed with Direct sky blue (greenish), Cotton yellow CH, Direct fast orange SE, Direct fast scarlet SE, Chlorantin light red 5BL or Melantherin BH, is impregnated as in (2) and dried; the fastness to light of the dyeings is considerably increased. The Specification as open to inspection under Sect. 91 comprises also the simultaneous application, especially in printing, of the dyestuff and the condensation product, prior to the heat treatment. This subject-matter does not appear in the Specification as accepted.
GB437934A 1934-02-09 1934-02-09 Improvements relating to processes of dyeing with direct dyestuffs Expired GB429209A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB437934A GB429209A (en) 1934-02-09 1934-02-09 Improvements relating to processes of dyeing with direct dyestuffs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB437934A GB429209A (en) 1934-02-09 1934-02-09 Improvements relating to processes of dyeing with direct dyestuffs

Publications (1)

Publication Number Publication Date
GB429209A true GB429209A (en) 1935-05-27

Family

ID=9776050

Family Applications (1)

Application Number Title Priority Date Filing Date
GB437934A Expired GB429209A (en) 1934-02-09 1934-02-09 Improvements relating to processes of dyeing with direct dyestuffs

Country Status (1)

Country Link
GB (1) GB429209A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE767276C (en) * 1938-12-21 1952-04-07 Chemische Ind Ges Process for improving the fastness properties of dyeings or prints with water-soluble direct dyes on cellulose fibers and fiber mixtures thereof
DE751174C (en) * 1937-07-03 1952-08-28 Ig Farbenindustrie Ag Process for improving the fastness properties of direct dyeing
DE763183C (en) * 1937-07-03 1952-11-17 Ig Farbenindustrie Ag Process for improving the fastness properties of direct dyeing
DE767810C (en) * 1937-11-13 1953-10-12 Ig Farbenindustrie Ag Process for fixing soluble dyes on fibers or tanning agents on leather
DE933143C (en) * 1945-06-29 1955-09-22 Ciba Geigy Processes and preparations for improving the fastness properties of dyeings or prints
US2736749A (en) * 1952-06-10 1956-02-28 Arnold Hoffman & Co Inc Dye-fixing agents

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE751174C (en) * 1937-07-03 1952-08-28 Ig Farbenindustrie Ag Process for improving the fastness properties of direct dyeing
DE763183C (en) * 1937-07-03 1952-11-17 Ig Farbenindustrie Ag Process for improving the fastness properties of direct dyeing
DE767810C (en) * 1937-11-13 1953-10-12 Ig Farbenindustrie Ag Process for fixing soluble dyes on fibers or tanning agents on leather
DE767276C (en) * 1938-12-21 1952-04-07 Chemische Ind Ges Process for improving the fastness properties of dyeings or prints with water-soluble direct dyes on cellulose fibers and fiber mixtures thereof
DE933143C (en) * 1945-06-29 1955-09-22 Ciba Geigy Processes and preparations for improving the fastness properties of dyeings or prints
US2736749A (en) * 1952-06-10 1956-02-28 Arnold Hoffman & Co Inc Dye-fixing agents

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