EP0017618B1 - Procédé d'azurage optique de fibres en polyester par épuisement du bain - Google Patents

Procédé d'azurage optique de fibres en polyester par épuisement du bain Download PDF

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Publication number
EP0017618B1
EP0017618B1 EP80810098A EP80810098A EP0017618B1 EP 0017618 B1 EP0017618 B1 EP 0017618B1 EP 80810098 A EP80810098 A EP 80810098A EP 80810098 A EP80810098 A EP 80810098A EP 0017618 B1 EP0017618 B1 EP 0017618B1
Authority
EP
European Patent Office
Prior art keywords
dispersion
process according
fluorescent whitening
whitening agent
dye
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
EP80810098A
Other languages
German (de)
English (en)
Other versions
EP0017618A1 (fr
Inventor
Willy Schürings
Italo Anceschi
Gerhard Dr. Reinert
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.)
Novartis AG
Original Assignee
Ciba Geigy 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 Ciba Geigy AG filed Critical Ciba Geigy AG
Publication of EP0017618A1 publication Critical patent/EP0017618A1/fr
Application granted granted Critical
Publication of EP0017618B1 publication Critical patent/EP0017618B1/fr
Expired 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
    • 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
    • D06P3/34—Material containing ester groups
    • D06P3/52—Polyesters
    • D06P3/54—Polyesters using dispersed dyestuffs
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/40—Dyes ; Pigments
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/40—Dyes ; Pigments
    • C11D3/42—Brightening agents ; Blueing agents
    • 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
    • D06L4/60—Optical bleaching or brightening
    • D06L4/686—Fugitive optical brightening; Discharge of optical brighteners in discharge paste; Blueing; Differential optical brightening
    • 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
    • Y10S8/92—Synthetic fiber dyeing
    • Y10S8/922—Polyester fiber

Definitions

  • the present invention relates to a new, improved process for the optical brightening of polyester fibers in the exhaust process with the aid of conventional polyester brighteners with the use of shading dyes.
  • the process according to the invention for the optical brightening of polyester fibers in the drawing-out process by treating the fibers in an aqueous polyester brightener which is stable under the application conditions and which absorbs onto the substrate and a small amount of a blue to violet disperse dye or mixtures of such dyes as shading dye is thereby characterized in that the treatment in said dispersion is carried out at a pH of more than 9.
  • the dispersion has a pH between 11 and 14, e.g. B. between 11 and 13.5, in particular between 11 and 12.5.
  • the pH is adjusted using a suitable alkaline substance, preferably using alkali metal hydroxides, in particular using KOH, but especially NaOH.
  • the treatment is carried out in the customary manner at a temperature between room temperature and 140 ° C., in particular between 50 ° and 130 ° C.
  • the fiber material is advantageously used at a lower temperature (for example 50 ° C.), whereupon the temperature is increased (e.g. to 120 ° C).
  • HT high temperature
  • carrier is added to the treatment bath that is common in dyeing practice.
  • carrier addition it is also possible to achieve very good results at lower temperatures, for example below 100 ° C.
  • carrier addition can also be used under HT conditions.
  • Suitable carriers are those customary in dyeing practice, e.g. B. aromatic hydrocarbons, aromatic halogenated hydrocarbons and esters and ethers of aromatic carboxylic acids.
  • Preferred carriers are dichlorobenzenes and trichlorobenzenes, optionally also diphenyl and mixtures of the substances mentioned.
  • the duration of the treatment of the textiles in the brightener dispersion can vary within wide limits, but an application period of at least 20 to 30 ° minutes is advantageous.
  • the amount of brightener (pure substance) in the dispersion can, depending on the brightener used, vary between 0.002 and 0.5%, based on the material to be lightened.
  • the amount of shading dye is, depending on the dye and the desired shade, about 0.0025-2.5%, preferably 0.025-1.25%, based on the amount of brightener (pure substance) used.
  • polyester brighteners are used as brighteners, which in practice are applied together with shading dyes. These are mostly benzoxazole, stilbene and naphthalimide brighteners.
  • rings A, B and C may also contain simple radicals, such as lower alkyl or alkoxy groups or chlorine atoms, especially 2,5-bis-benzoxazol-2-yl-thiophene, 2,5-bis- (5- Methyl-benzoxazol-2-yl) ethylene and 1,4-bis-benzoxazol-2-yl-naphthalene; or the formula where n is 0 or 1 and rings A and B may be further substituted, e.g. B.
  • stilbene brighteners are those of the formulas respectively. wherein the rings A, B and C can carry different substituents, such as. As alkyl, alkoxy, chlorine, cyano, carboxy and its derivatives, etc., to mention, in particular the compounds 2-cyano-4- (naphtho (1,2-d) v-triazol-2-yl) -4'- chlorstilbene, 4- (naphtho [1,2-dlv-triazol-2-yl) -4'-methoxycarbonylstilbene, and 1,4-bis- (2-cyanostyryl) benzene.
  • substituents such as alkyl, alkoxy, chlorine, cyano, carboxy and its derivatives, etc.
  • naphthalimide brighteners are those of the formula in which R i and R 2 are hydrogen or alkoxy, especially those in which R 1 is hydrogen and R 2 is methoxy or in which R 1 and R 2 are each ethoxy.
  • Blue to violet disperse dyes are used as shading dyes, which of course have to be suitable for treatment in an alkaline liquor.
  • Acylaminoanthraquinone dyes are preferably used, in particular those of the formula wherein the benzene rings A may be optionally substituted, e.g. B. by alkyl, alkoxy, halogen, etc.
  • Dyes whose benzene rings A are unsubstituted or substituted in the para position with chlorine or methoxy are particularly suitable.
  • the aqueous dispersion advantageously also contains one or more dispersants and, if appropriate, wetting agents, stabilizers and / or other customary dyeing auxiliaries.
  • Suitable dispersants include: alkali metal salts, especially sodium salts of alkyl or alkylarylsulfonic acids and carboxylic acids, alkali metal salts, especially sodium salts of condensation products of arylsulfonic acids with formaldehyde, macromolecular substances which are suitable for liquefaction and dispersion, carboxylates of the polymerized maleic acid type polymerized acrylic acid and copolymers of maleic acid with allyl acetate.
  • Examples of such dispersants are: lauryl sulfate sodium salt, oleyl sulfate sodium salt, oleyl sulfate diethanolamine salt, benzylnaphthalenesulfonic acid Na, di- (2-sulfo-1-naphthyl) methane di-Na salt, m-xylenesulfonic acid Na, dodecylbenzenesulfonic acid Na Na salt, dodecylbenzenesulfonic acid, diethanolamine, diisopropylnaphthalenesulfonic acid Na, di-n-butylnaphthalenesulfonic acid Na, n-propyl-n-hexylnaphthalenesulfonic acid Na, N-oleylmethyl taurine Na salt, Na salt of the condensation product of naphthalenesulfonic acid and formaldehyde acid formaldehyde , Benzenesulfonic acid sodium salt, cum
  • particularly preferred dispersants are nonionic, water-soluble ethoxylated or propoxylated fatty alcohols and alkylphenols and fatty alcohol polyglycol ethers, for example alkanols, alkenols (C 8 -C 22 ) with different amounts of ethyleneoxy or propyleneoxy groups, alkyl or arylpolyglycol ethers with up to 50 ethyleneoxy or propyleneoxy groups, such as octyl, nonyl or dodecylphenol polyglycol ether.
  • the individual components can be introduced separately into the treatment bath, which is already alkaline or is only then adjusted to the desired pH.
  • Such dispersions contain brightener and dye in the desired ratio. They are made by adding brightener and dye, preferably made together with a dispersant in a small amount of water. It is advantageous if this dispersion is subjected to grinding (for example in a ball mill) in order to obtain particle sizes of less than 10 ⁇ m, preferably less than 2 ⁇ m.
  • this stock dispersion can then be introduced (calculated on the desired amount of brightener in the bath) into the treatment bath, which may also contain a dispersant and / or other auxiliaries.
  • the treatment bath which may also contain a dispersant and / or other auxiliaries.
  • the bleaching bath can then be bleached directly.
  • Sodium chloride is preferably added to the liquor, the alkaline bath is acidified and then heated to about boiling temperature.
  • polyester fibers naturally also include polyester fibers in blended fabrics, eg. B. in mixed fabrics polyester / cotton.
  • the nuanced lightening of such blended fabrics by the process according to the invention can also be advantageous with the lightening of the cotton content, with the bleaching (e.g. with peroxide) and / or the various conventional finishing and finishing processes (e.g. crease-resistant, wash and wear, soft grip and other equipment) can be combined.
  • 0.4 g of the stock dispersion described under a) and 0.2 g of a dispersant are processed into a dispersion with 400 ml of water and the latter is made alkaline with 0.8 ml of NaOH 30%.
  • polyester staple fabric (washed and heat-set at 1800 C for 20 seconds) are wound evenly onto bobbin tubes as a fabric tape of approx. 250 x 12 cm and treated with the dispersion just described in an HT dyeing machine.
  • the fleet had an initial pH of 11.5.
  • the temperature is 50 ° C, after that heated to 130 ° C within 30 minutes and then left at this temperature for 30 minutes.
  • the mixture is then cooled to 70 ° C., the liquor is drained off, the fabric is rinsed twice warm and dried in a drying cabinet at 80 ° C. for 5 minutes.
  • the lightened fabric has a high degree of whiteness with perfect levelness.
  • Example 1b As described in Example 1b), 0.4 g of this stock dispersion is processed into a liquor (pH approx. 11.5) and thus 40 g of polyester staple fabric is lightened in the manner given there.
  • the treated fabric also has a high degree of whiteness with perfect levelness.
  • polyester brightener used is that of the formula a, you also get a highly lightened polyester fabric of excellent levelness.
  • Example 1 a 0.4 g of the stock dispersion described in Example 1 a) and 0.2 g of a dispersant (adduct of 35 ethylene oxide groups with stearyl alcohol) are processed into a dispersion with 400 ml of water and the latter made alkaline with 0.8 ml of NaOH 30%.
  • a dispersant adduct of 35 ethylene oxide groups with stearyl alcohol
  • polyester staple fabric (washed and heat-set at 180 ° C for 30 seconds) are evenly wound onto bobbin tubes as a fabric tape of approx. 250x12 cm and treated with the dispersion just described in an HT dyeing machine.
  • the fleet had an initial pH of 11.5.
  • the fabric is introduced at 50 ° C. and the liquor is heated to 120 ° C. in 30 minutes, treated at this temperature for 15 minutes, cooled to 70 ° C., 0.8 g of sodium chloride 80% is added and the liquor is made up with 1 , 4 ml of formic acid 85% to a pH of 3-4.
  • the mixture is heated to about 100 ° C. in 20 minutes, treated at this temperature for 30 minutes, then the liquor is drained off, rinsed and dried.
  • the piece of fabric is immaculate and has a high degree of whiteness.

Claims (10)

1. Procédé d'azurage optique de fibres en polyester par épuisement du bain par traitement des fibres dans une dispersion aqueuse, contenant un ou plusieurs azurants de polyester stables dans les conditions d'application et se fixant sur le substrat et une petite quantité d'un colorant de dispersion bleu à violet ou de mélanges de tels colorants comme colorant de nuanciation, caractérisé par le fait que l'on réalise le traitement dans ladite dispersion à une valeur du pH supérieure à 9.
2. Procédé selon la revendication 1, caractérisé par le fait que l'on utilise une dispersion qui présente une valeur du pH comprise entre 11 et 14, en particulier entre 11 et 12,5.
3. Procédé selon la revendication 1, caractérisé par le fait que l'on utilise le colorant de nuanciation en une quantité comprise entre 0,025 et 1,25%, par rapport à l'azurant de polyester utilisé.
4. Procédé selon la revendication 1, caractérisé par le fait que l'on utilise comme azurant un azurant de polyester habituel benzoxazolique, par exemple un azurant bis-benzoxazolique, styryl- ou stilbènyl-benzoxazolique, triazolylique ou styrylstilbènique ou un azurant naphtalimidique ou des mélanges de ces azurants.
5. Procédé selon la revendication 1, caractérisé par le fait que l'on utilise comme colorant de nuanciation un colorant bleu à violet de la classe des acylaminoanthraquinones.
6. Procédé selon une des revendications 1 à 5, caractérisé par le fait que l'on utilise une dispersion qui contient à côté de l'azurant et du colorant de nuanciation encore un ou plusieurs émulsionnants usuels et éventuellement des agents de dispersion, stabilisants et autres agents auxiliaires habituels.
7. Procédé selon une des revendications 1 à 5, caractérisé par le fait que l'on introduit une partie d'une dispersion de base concentrée, qui contient l'azurant optique, le colorant de nuanciation et un émulsionnant, la grosseur des particules étant inférieure à 2 um, dans un bain qui contient un émulsionnant et qui a été ajusté à la valeur souhaitée du pH avec NaOH, et que l'on traite de la manière habituelle avec le bain obtenu les tissus en polyester.
8. Procédé selon la revendication 1, caractérisé par le fait que l'on blanchit ensuite le tissu dans le même bain, de préférence avec du chlorite de sodium.
9. Procédé selon la revendication 1, caractérisé par le fait que le traitement des fibres en polyester est réalisé avec la dispersion alcaline d'azurant dans des conditions de haute température (HT).
10. Procédé selon la revendication 1, caractérisé par le fait que l'on utilise une dispersion alcaline d'azurant qui contient un véhiculeur usuel dans la pratique de teinture.
EP80810098A 1979-03-29 1980-03-24 Procédé d'azurage optique de fibres en polyester par épuisement du bain Expired EP0017618B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH291979 1979-03-29
CH2919/79 1979-03-29

Publications (2)

Publication Number Publication Date
EP0017618A1 EP0017618A1 (fr) 1980-10-15
EP0017618B1 true EP0017618B1 (fr) 1983-03-02

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EP80810098A Expired EP0017618B1 (fr) 1979-03-29 1980-03-24 Procédé d'azurage optique de fibres en polyester par épuisement du bain

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US (1) US4283197A (fr)
EP (1) EP0017618B1 (fr)
DE (1) DE3062164D1 (fr)

Families Citing this family (14)

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Publication number Priority date Publication date Assignee Title
DE4426004A1 (de) * 1994-07-22 1996-01-25 Basf Ag Verfahren zum optischen Aufhellen von Polyamiden
US8268016B2 (en) 2004-09-23 2012-09-18 The Sun Products Corporation Laundry treatment compositions
CN101023158B (zh) * 2004-09-23 2011-04-27 荷兰联合利华有限公司 洗衣处理组合物
GB0421145D0 (en) * 2004-09-23 2004-10-27 Unilever Plc Laundry treatment compositions
DE102004051174A1 (de) * 2004-10-20 2006-05-04 BSH Bosch und Siemens Hausgeräte GmbH Beleuchtungsvorrichtung für ein wasserführendes Haushaltsgerät
CN101370923B (zh) * 2006-01-18 2012-01-11 西巴控股公司 处理纤维材料的方法
EP1974006A1 (fr) * 2006-01-18 2008-10-01 Ciba Specialty Chemicals Holding Inc. Procédé de traitement de matériaux fibreux
US20080177089A1 (en) 2007-01-19 2008-07-24 Eugene Steven Sadlowski Novel whitening agents for cellulosic substrates
WO2009074488A1 (fr) * 2007-12-10 2009-06-18 Basf Se Formulation de colorant et procédé pour le traitement de matériaux à base de fibres
BRPI1006985B1 (pt) * 2009-01-26 2019-04-30 Unilever N.V. Composição detergente granular de lavagem de tecidos
US8715368B2 (en) 2010-11-12 2014-05-06 The Procter & Gamble Company Thiophene azo dyes and laundry care compositions containing the same
BR112013021581A2 (pt) 2011-05-26 2016-11-16 Unilever Nv composição detergente líquida para lavar roupa e método de tratamento de um têxtil
WO2015112341A1 (fr) * 2014-01-22 2015-07-30 The Procter & Gamble Company Composition de traitement de textile
CN112853526A (zh) * 2020-12-30 2021-05-28 湖北鸿鑫化工有限公司 一种提高pp扁丝白度的方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE560912A (fr) * 1956-10-01
US3755201A (en) * 1971-07-26 1973-08-28 Colgate Palmolive Co Laundry product containing mixed dye bluing agents
DE2727112C3 (de) * 1977-06-16 1981-06-04 Öffentliche Prüfstelle und Textilinstitut für Vertragsforschung e.V., 4150 Krefeld Verfahren zum Vorreinigen und Färben von textilen Materialien

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Publication number Publication date
EP0017618A1 (fr) 1980-10-15
DE3062164D1 (en) 1983-04-07
US4283197A (en) 1981-08-11

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