US3893804A - Continuous process for the simultaneous high grade finishing and dyeing of cellulosic piece goods - Google Patents

Continuous process for the simultaneous high grade finishing and dyeing of cellulosic piece goods Download PDF

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Publication number
US3893804A
US3893804A US334834A US33483473A US3893804A US 3893804 A US3893804 A US 3893804A US 334834 A US334834 A US 334834A US 33483473 A US33483473 A US 33483473A US 3893804 A US3893804 A US 3893804A
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US
United States
Prior art keywords
urea
fibres
dyeing
leuco
vat
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Expired - Lifetime
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US334834A
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English (en)
Inventor
Josef Hepp
Joachim Walter Lehmann
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Hoechst AG
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Hoechst AG
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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
    • D06P1/62—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 low-molecular-weight organic compounds with sulfate, sulfonate, sulfenic or sulfinic groups
    • D06P1/621—Compounds without nitrogen
    • D06P1/622—Sulfonic acids or their salts
    • D06P1/625—Aromatic
    • 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
    • D06P1/22—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 vat dyestuffs including indigo
    • 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
    • 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
    • D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
    • D06P3/58—Material containing hydroxyl groups
    • D06P3/60—Natural or regenerated cellulose
    • D06P3/6025—Natural or regenerated cellulose using vat or sulfur dyes
    • 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
    • D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
    • D06P3/82—Textiles which contain different kinds of fibres
    • D06P3/8204—Textiles which contain different kinds of fibres fibres of different chemical nature
    • D06P3/8223—Textiles which contain different kinds of fibres fibres of different chemical nature mixtures of fibres containing hydroxyl and ester groups
    • D06P3/8228—Textiles which contain different kinds of fibres fibres of different chemical nature mixtures of fibres containing hydroxyl and ester groups using one kind of dye
    • 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

  • ABSTRACT Process for the simultaneous high-grade finishing and dyeing with leuco esters of vat dyestuffs of piecegoods of cellulose fibres and mixtures thereof with synthetic fibres, preferably linear polyester fibres, in a continuous working method, wherein the textile material is impregnated at room temperature with an aqueous bath which contains, besides leuco esters of vat dyestuffs, aminoplast-precondensates which may be hardened in the heat and/or reactant resins which act to give cross-linking effects with the cellulose fibre, together with condensation catalysts acting simultaneously as acid donators, the material thus treated is dried and then subjected to the action of dry heat at 150 to 230C.
  • the present invention relates to a process for the simultaneous high-grade finishing and dyeing with leuco esters of vat dyestuffs, of cellulosic piece goods and mixtures thereof with synthetic fibres in a continuous working method.
  • the pad-thermosol-process has not been adopted for the dyeing of piece goods of pure cellulose fibres with leuco esters of vat dyestuffs, since there has been no need of it on account of the perfect working of the twobath development of paddings with these dyestuffs.
  • the dyeingprocess can be combined with a finishing process, the method of operation according to the thermosol process is not only possible, but also has technical and economical advantages:
  • piece goods of cellulose fibres or mixtures thereof with synthetic fibres may be high-grade finished and simultaneously dyed with leuco esters of vat dyestuffs in a continuous working method, when the textile material is impregnated at room temperature with an aqueous bath which contains, besides leuco esters of vat dyestuffs, aminoplast precondensates which may be hardened in the heat and/or reactant resins which act to give cross-linking effects with the cellulose fibre, together with condensation catalysts acting simultaneously as acid donators, the material thus treated is dried and then subjected to the action of dry heat at 150 to 230C.
  • the fact is considered that the acidor hardening catalysts available in the dyebaths together with the leuco vat esters and resin formers, split off acid in the heat and that they act as catalysts for the condensation or fibre reaction of the high-grade finishing products as well as for the acidic saponification of the ester bond of the dyestuffs.
  • the oxydation of the split leuco dyestuff to the dyestuff pigment takes place during the thermal treatment of the material spontaneously by the atmospheric oxygen only or it may be favored by oxydating agents which are also used.
  • the color yield and the fastnesses of the dyeings obtained according to the present invention corresponds in all aspects to the results of a finish, in which dyeing and finishing are effected subsequently.
  • the mixed fabrics treated according to the invention are dyed on both fibre portions in nearly the same shade and the same color intensity.
  • the leuco esters of vat dyestuffs used according to the process claimed are water-soluble dyestuffs prepared from vat dyestuffs by esterification, preferably with sulfuric acid, which may belong to the indigo, thiondigo type and the corresponding derivatives thereof, to the anthraquinone dyestuffs having one or several anthraquinone nuclei, to the indanthrone, flavanthrone and anthraquinone carbazole, to the acridones, -(thio-)oxanthrones, pyranthrones, anthranthrones and anthrinides and of the dibenzanthrone and dibenzopyrenquinonetype and other compounds.
  • resin formers for the high-grade finish of the textile articles may be considered according to the new process, in thepresence of a catalyst and at a higher temperature with selfcondensation, cross-linking aminoplast-precondensates of the type of the urea and melamine-formaldehyde resins, for example monomethylol-urea, dimethylol-urea, hexamethylolmelamine and the methyl ethers thereof or mixtures of these substances.
  • cyclic .urea derivatives especially methylolethylene urea, methylol-hydroxy ethyleneurea, dimethylol-dihydroxy-ethylene urea, dimethylolethylene urea, dimethylol-propylene urea, dimethyloltriazinone, dimethylol-glyoxal monoureine, tetramethylol-acetylene diurea (tetramethylol-glyoxal diureine), and dimethyldihydroxy-imidazolone, furthermore dimethy-lol-adipic acid diamide, dimethylolbutanediol-diurethane,- dimethylolhexahydropyrimidinone, polycarbonates as well as acrylamides.
  • resin-treating agents are used'in the amounts usual for the high-grade finishing of textiles of about 1 to
  • inorganic or organic compounds which split off acid in the heat by reaction or hydrolysis, such as the chlorides, nitrates or sulfates of zinc, magnesium or ammonium, the hydrochlorides of aliphatic or aromatic amines, the alkali salts' of aliphatic monocarboxylicacids with a halogen atom or halogenacetamides.
  • the dyebaths used may contain those oxydating agents, which develop their oxydating-action only in the heat and in the acidic medium formed, for example chlorates or nitrates of alkali metals, zinc or magnesium, preferably sodium chlorate.
  • the process of the invention for the simultaneous fixation of high-grade finishing products and leuco esters of vat dyestuffs on textiles may be applied to the known cellulosic fibres and mixtures of synthetic fibres and cellulose fibres.
  • the cellulose fibres may be native fibres, such as flax, hemp, linen, cotton, or regenerated fibres, such as viscose, spun rayon, modal fibres (polynosic type).
  • the synthetic fibres in these mixtures are preferably those of known linear polyesters.
  • the precondensate of the synthetic resins or reactant products which are generally available as a 50 aqueous solution, are diluted in the amount forseen with cold water to about the double volume.
  • the acid-donators (hardening or reactant catalysts) are dissolved in cold water.
  • oxydating agents for example sodium chlorate
  • an oxygen carrier for example ammonium vanadate
  • these substances are added to the acid donator solutions.
  • the solutions obtained in this way have a slightly acidic reaction, a neutralization with diluted sodium carbonate solution or ammonia to reach a pH value of 6 to 7 is possible, but not obligatory.
  • the material is padded on a foulard at a liquor pickup of 50 70 percent by weight with the bath prepared in this manner, and after a short passage through the air, during which the bath may enter into the interior of the threads and fibres, the material is dried at temperatures of from 90 to 120C on suitable apparatus, as for example hot flues, tenters, infrared devices or the like.
  • the dyebath may be applied according to the present process not only by padding but also by slop-padding, dipping or spraying.
  • Thermal treatment thermosolation, condensation, fibre reaction
  • the dried fabric is subjected to a thermal treatment, eitherunder conditions of temperature and reaction time most suitable for the condensation or fibre reaction of the finishing agents chosen, or, above all in the case of polyester mixtures, under thermosol conditions, preferably by means of hot air, during 1 to 180 seconds at temperatures of from 150 to 230C, preferably for 10 to 120 seconds between 150 and 210C.
  • the leuco ester of the vat dyestuff is fixed on the fibre or on both fibre portions, acidically saponified (split), reoxydized and the pre-condensates are condensed to a resin or cross-linked with the cellulose fibre.
  • the acidic highgrade finishing catalysts can simultaneously exert the function of the acidic saponification of the dyestuff ester and that a considerable amount of the dyestuff is fixed in the fibre and only a small portion is fixed in the resin layer.
  • the distrubution of the dyestuff in the system fibre/layer depends to a small extent on the thermal conditions.
  • EXAMPLE 1 A cotton fabric was padded on a foulard at a weight increase (liquor pick-up) of about 7: with a bath of room temperature, which was prepared as follows:
  • the material thus padded was dried at 100C and then subjected for 30 seconds to a dry heat treatment at 180C. Finally the dyeing was rinsed with water, soaped in usual manner with alkaline baths at boiling temperature and worked up.
  • Piece-goods having a mixture of linear polyester fibres and cotton in the ratio of 67:33 were padded with this cold bath (or at temperatures of up to 30C), at a weight increase of 50 7c (liquor pick-up), the padded material was dried and treated for thermosolation for 30 seconds at 210C.
  • the three solutions were combined and completed to 1 liter by addition of water; the bath temperature was to be about 30C.
  • a well absorbent cotton piece-good was padded with this bath at a weight increase (liquor pick-up) of 70 70, the textile good was dried at 100C and this material was treated for 30 seconds with dry heat at 180C.
  • Piece-goods of a mixture (67:33) of linear polyester fibres and cotton were padded with this bath at a weight increase of 50 7r (liquor pick-up), the padded material was dried at C and treated for 30 seconds under thermosol conditions at 210C. The dyeing was after-treated by rinsing and boiling alkaline soaping.
  • a continuous process for the simultaneous highgrade finishing and dyeing of piece-goods of cellulose fibres and mixtures thereof with linear polyester fibres, with leuco esters of vat dyestuffs wherein: the textile material is impregnated at room temperature with an aqueous bath which contains l a leuco ester of a vat dyestuff', (2) an aminoplastprecondensate which may be heat hardenable and/or a reactant resin selected from the group of cyclic urea derivatives consisting of methylol-ethylene urea, methylol-hydroxy-ethylene urea, dimethylol dihydroxy-ethylene urea, dimethylolethylene urea, dimethylol-propylene urea, dimethylol triazinone, dimethylol-glyoxal monoureine, tetramethylol-acetylene diurea, dimethyldihydroxyimidazolone and dimethylolhexahydropyrimidinone which crosslink with the cellulose
  • impregnation bath additionally contains an oxidation agent which is effective when heated and under acidic conditions.
  • impregnation bath contains an oxidation agent selected from the group consisting of chlorates and nitrates of alkali metals, zinc and magnesium.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Coloring (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
US334834A 1972-02-25 1973-02-22 Continuous process for the simultaneous high grade finishing and dyeing of cellulosic piece goods Expired - Lifetime US3893804A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2208991A DE2208991C3 (de) 1972-02-25 1972-02-25 Verfahren zum gleichzeitigen Hochveredeln und Färben mit Leukoküpenester-Farbstoffen von Stückware aus Cellulosefasern und deren Mischungen mit synthetischen Fasern in kontinuierlicher Arbeitsweise

Publications (1)

Publication Number Publication Date
US3893804A true US3893804A (en) 1975-07-08

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US334834A Expired - Lifetime US3893804A (en) 1972-02-25 1973-02-22 Continuous process for the simultaneous high grade finishing and dyeing of cellulosic piece goods

Country Status (6)

Country Link
US (1) US3893804A (de)
CH (2) CH565893A (de)
DE (1) DE2208991C3 (de)
FR (1) FR2173314B1 (de)
GB (1) GB1396046A (de)
IT (1) IT979451B (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4487608A (en) * 1981-07-01 1984-12-11 Lintrend Limited Dyeing of fibrous materials
KR100384696B1 (ko) * 2000-06-14 2003-05-22 이강춘 연속적인 염색가공을 위한 염색장치 및 방법

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2628151A (en) * 1949-11-25 1953-02-10 American Viscose Corp Process for simultaneously stabilizing and applying a vat dye to textile material comprising regenerated cellulose
US3576589A (en) * 1968-04-22 1971-04-27 Virginia Chemicals Inc Method for thermofixation dyeing of polyester/cotton fabric in a mixture of vat/disperse dye

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB655700A (en) * 1948-04-09 1951-08-01 Bancroft & Sons Co J Improvements in or relating to the printing of cellulose textile fabrics
GB993663A (en) * 1962-11-02 1965-06-02 Ici Ltd New colouration process

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2628151A (en) * 1949-11-25 1953-02-10 American Viscose Corp Process for simultaneously stabilizing and applying a vat dye to textile material comprising regenerated cellulose
US3576589A (en) * 1968-04-22 1971-04-27 Virginia Chemicals Inc Method for thermofixation dyeing of polyester/cotton fabric in a mixture of vat/disperse dye

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4487608A (en) * 1981-07-01 1984-12-11 Lintrend Limited Dyeing of fibrous materials
KR100384696B1 (ko) * 2000-06-14 2003-05-22 이강춘 연속적인 염색가공을 위한 염색장치 및 방법

Also Published As

Publication number Publication date
DE2208991C3 (de) 1975-02-13
DE2208991A1 (de) 1973-09-06
CH249673A4 (de) 1975-03-27
FR2173314B1 (de) 1976-06-11
IT979451B (it) 1974-09-30
FR2173314A1 (de) 1973-10-05
CH565893A (de) 1975-08-29
DE2208991B2 (de) 1974-06-20
GB1396046A (en) 1975-05-29

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