EP0252689A2 - Sauermachendes Mittel für Textilbehandlung - Google Patents

Sauermachendes Mittel für Textilbehandlung Download PDF

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Publication number
EP0252689A2
EP0252689A2 EP87305880A EP87305880A EP0252689A2 EP 0252689 A2 EP0252689 A2 EP 0252689A2 EP 87305880 A EP87305880 A EP 87305880A EP 87305880 A EP87305880 A EP 87305880A EP 0252689 A2 EP0252689 A2 EP 0252689A2
Authority
EP
European Patent Office
Prior art keywords
acidulant
dyeing
mixture
textile processing
acetate
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.)
Granted
Application number
EP87305880A
Other languages
English (en)
French (fr)
Other versions
EP0252689B1 (de
EP0252689A3 (en
Inventor
Brian David Black
Andrew Ness
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.)
BP Chemicals Ltd
Original Assignee
BP Chemicals Ltd
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 BP Chemicals Ltd filed Critical BP Chemicals Ltd
Publication of EP0252689A2 publication Critical patent/EP0252689A2/de
Publication of EP0252689A3 publication Critical patent/EP0252689A3/en
Application granted granted Critical
Publication of EP0252689B1 publication Critical patent/EP0252689B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • D06P1/64—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 without sulfate or sulfonate groups
    • D06P1/651—Compounds without nitrogen
    • D06P1/65106—Oxygen-containing compounds
    • D06P1/65125—Compounds containing ester groups
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
    • D06L4/00—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
    • D06L4/20—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which contain halogen
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
    • D06L4/00—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
    • D06L4/10—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which develop oxygen
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
    • D06M13/224—Esters of carboxylic acids; Esters of carbonic acid
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/28—Colorants ; Pigments or opacifying agents

Definitions

  • the present invention relates to the use of mixed esters as additives in textile processing, especially in the dyeing and printing processes for natural and synthetic fibres and fabrics.
  • organic acids and their salts are commonly used as acidulants in the dyeing of wool, nylon, paper, leather and other natural and synthetic fibres with certain acid and chrome dyes.
  • Organic acids such as citric acid and acetic acid are also used as components of printing pastes e.g for printing carpets and in printing processes.
  • the use of such acids and salts is disclosed for example in French Patent Application No. A-2240317, German Patent Nos C-317725 and C-874291 and in GB-A-1048482.
  • acids and their salts perform several functions in the dyeing and printing processes such as:- - to ensure economic exhaustion (defined as the degree of uptake of the dye by the material dyed) from the aqueous dye bath, to prevent oxidation of the dyestuff by dichromate in the case of certain chrome dyes by the reducing action of acids such as formic acid, to achieve dyeing of wool by padding (immersing and then nipping) wool fabric with a concentrated solution of the dye in formic acid.
  • acids such as formic acid
  • - to achieve and maintain the desired pH conditions for the printing of wool and other fabrics, and - to achieve adequate levelling (evenness or uniformity of dyeing) with certain dyes, e.g. mordant acid dye and premetallised dye wherein the acid is used in the form of its neutral salt for thee buffering effect to maintain a constant pH.
  • compositions are formed which regulate the pH e.g. of the dye bath so as to obtain adequate levelling and exhaustion of dyes while fluctuations, odour and corrosivity of the free acids.
  • the use of these mixed esters in textile processing not only minimise the problems relating to odour and corrosivity but also has the surprising advantage of eliminating the need in some cases for separate buffering agents.
  • the present invention is an acidulant for regulating pH in textile processing characterised in that the acidulant comprises a mixture of triacetin and an alkyl acetate.
  • the acidulant mixture of the present invention can wholly or partially replace acidulants conventionally used for regulating pH during textile processing.
  • the mixture of esters triacetin and an alkyl acetate may be used as such or in combination with other esters such as glycol mono- and di-formates, glycol mono-­and di-acetates, diacetin, diethyl oxalate or dialkyl succinates, or with free C1-C3 mono carboxylic acids.
  • the alkyl acetate in the ester mixture is suitably an acetate ester of a C1-C5 monohydric alcohol, preferably a linear alcohol. n-Propyl acetate is most preferred.
  • triacetin is suitably present in an amount from 25 to 95% w/w, preferably from 60 to 95% w/w of the total ester mixture.
  • the ester mixture can be incorporated at various points during textile processing, for example at one or more of the stages of scouring of the fabric, bleaching chlorination, dyeing, mordanting, levelling, exhaustion, fixing, printing, finishing, water-proofing and milling.
  • bleaching chlorination dyeing
  • mordanting mordanting
  • levelling exhaustion
  • fixing printing
  • finishing water-proofing and milling.
  • the machine is loaded with wool and water is added together with the ester mixture which wholly or partially replace the conventional acids (e.g. formic acid, acetic acid) normally used, the levelling agents and pH control agents (e.g. sodium and ammonium sulphate).
  • the levelling agents e.g. sodium and ammonium sulphate
  • additional pH control agents can be omitted because the ester mixture avoids wide fluctuations of pH thus also performing a buffering function.
  • the dye bath is held at 40°C for 5-30 minutes, the dye is added and the bath raised to the boil in 45-60 minutes. The dye bath is held at the boil for 30-60 minutes. At this stage more ester mixture can be added, if necessary, to maintain the pH and to complete dye exhaustion.
  • the ester mixture used in the present invention may be added with the initial charge of water to replace either the conventional acidulants or the levelling agent or both.
  • the concentration used (on a 100% basis) may be in the range of 0.1-10% w/w based on the weight of the liquor being used in the dye bath.
  • the ester mixture may be added as such or as solutions of the esters in a solvent. Additionally, the solutions can be used as a solvent carrier for the dyes.
  • the control of pH is essential and the ester mixture used in the present invention not only enables such control but also can be added to the dye used for colouring the pulp or the final product paper.
  • the ester mixture may be used in the present invention in conjunction with other conventional assistants or agents such as for example wetting agents, anti-foaming agents, solubilising agents and thickeners, used the the dying or printing process.
  • other conventional assistants or agents such as for example wetting agents, anti-foaming agents, solubilising agents and thickeners, used the the dying or printing process.
  • the type of dyes used are not limited by the process of the present invention.
  • the dyes may be acid, azoic, basic, direct, indirect, dispersed, reactive, mordant, prematallised, solvent, sulpher, vat dyes and optical brightners.
  • the principal advantages of using the ester mixture during textile processing are as follows:- - pH control in the dying proces to achieve gradual change of pH from an alkaline to acidic pH values thereby allowing good levelling and exhaustion to be achieved. - It is less volatile than conventional compositions containing the free organic acids (e.g. formic acid, acetic acid). - Solutions of the ester mixture will act as buffer systems thereby preventing sudden upsurge in the pH value of the dye bath when fresh amounts of the ester are added either alone or together with free acid. This enables achievement of a controlled reduction in pH of the bath thereby eliminating in some cases, the need for a buffering agents. - Where a pH swing method is used e.g.
  • ester mixture which is the pH control agent.
  • the ester mixture is more cost effective than other proprietary esters now in use.
  • the use of the esters in the mixture result in shorter dyeing times.
  • the ester mixture is particularly suited for the dyeing of nylon apparels.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Coloring (AREA)
EP87305880A 1986-07-09 1987-07-02 Sauermachendes Mittel für Textilbehandlung Expired - Lifetime EP0252689B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8616691 1986-07-09
GB868616691A GB8616691D0 (en) 1986-07-09 1986-07-09 Acidulants

Publications (3)

Publication Number Publication Date
EP0252689A2 true EP0252689A2 (de) 1988-01-13
EP0252689A3 EP0252689A3 (en) 1988-12-28
EP0252689B1 EP0252689B1 (de) 1991-06-19

Family

ID=10600775

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87305880A Expired - Lifetime EP0252689B1 (de) 1986-07-09 1987-07-02 Sauermachendes Mittel für Textilbehandlung

Country Status (3)

Country Link
EP (1) EP0252689B1 (de)
DE (1) DE3770881D1 (de)
GB (1) GB8616691D0 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0394802A1 (de) * 1989-04-26 1990-10-31 Henkel Kommanditgesellschaft auf Aktien Triacetinhaltige textile Gleitmittel
EP0442749A2 (de) * 1990-02-14 1991-08-21 BP Chemicals Limited Sauermachendes Mittel für Textilbehandlung
US20220235518A1 (en) * 2021-01-25 2022-07-28 Energy Ogre Llc Launderable activated cotton

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB708934A (en) * 1951-05-25 1954-05-12 Standfast Dyers & Printers Ltd Improvements relating to dyeing of animal textile fibres
GB716990A (en) * 1952-02-05 1954-10-20 Brotherton And Company Ltd Improvements in or relating to dyeing fibrous materials
GB2132641A (en) * 1982-08-25 1984-07-11 Bp Chem Int Ltd Acidulant for dyeing process
GB2140470A (en) * 1983-05-23 1984-11-28 Sandoz Ltd A textile finishing process
EP0210318A2 (de) * 1985-07-30 1987-02-04 Meisei Chemical Works, Ltd. Verfahren zum Abkochen und Färben von synthetischen Fasern in einem einzigen Bad

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB708934A (en) * 1951-05-25 1954-05-12 Standfast Dyers & Printers Ltd Improvements relating to dyeing of animal textile fibres
GB716990A (en) * 1952-02-05 1954-10-20 Brotherton And Company Ltd Improvements in or relating to dyeing fibrous materials
GB2132641A (en) * 1982-08-25 1984-07-11 Bp Chem Int Ltd Acidulant for dyeing process
GB2140470A (en) * 1983-05-23 1984-11-28 Sandoz Ltd A textile finishing process
EP0210318A2 (de) * 1985-07-30 1987-02-04 Meisei Chemical Works, Ltd. Verfahren zum Abkochen und Färben von synthetischen Fasern in einem einzigen Bad

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0394802A1 (de) * 1989-04-26 1990-10-31 Henkel Kommanditgesellschaft auf Aktien Triacetinhaltige textile Gleitmittel
WO1990012916A1 (de) * 1989-04-26 1990-11-01 Henkel Kommanditgesellschaft Auf Aktien Triacetinhaltige textile gleitmittel
EP0442749A2 (de) * 1990-02-14 1991-08-21 BP Chemicals Limited Sauermachendes Mittel für Textilbehandlung
EP0442749A3 (en) * 1990-02-14 1992-01-15 Bp Chemicals Limited Textile processing acidulants
US20220235518A1 (en) * 2021-01-25 2022-07-28 Energy Ogre Llc Launderable activated cotton
US11987926B2 (en) * 2021-01-25 2024-05-21 Energy Ogre Llc Launderable activated cotton

Also Published As

Publication number Publication date
EP0252689B1 (de) 1991-06-19
GB8616691D0 (en) 1986-08-13
DE3770881D1 (de) 1991-07-25
EP0252689A3 (en) 1988-12-28

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