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
  • D06P3/58—Material containing hydroxyl groups
  • D06P3/60—Natural or regenerated cellulose
  • D06P3/62—Natural or regenerated cellulose using direct 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
  • 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
  • D06P1/628—Compounds containing nitrogen
• • 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
  • D06P1/642—Compounds containing nitrogen
  • D06P1/6422—Compounds containing nitro or nitroso groups
• • 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
  • D06P1/642—Compounds containing nitrogen
  • D06P1/6426—Heterocyclic compounds
• • 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
  • D06P1/642—Compounds containing nitrogen
  • D06P1/6429—Compounds containing nitrogen bound to a six-membered aromatic carbocyclic ring
• • 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
  • D06P1/642—Compounds containing nitrogen
  • D06P1/649—Compounds containing carbonamide, thiocarbonamide or guanyl groups
• • 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
  • D06P3/66—Natural or regenerated cellulose using reactive dyes

Definitions

• the present invention relates to a novel process for dyeing textile cellulosic fibers with direct or reactive dyes according to the padding, padding or pad process by using an aqueous liquor which, in addition to at least one direct or reactive dye, has at least one water-soluble, anionic , fiber-affine, colorless organic compound contains.
• the foulard, padding or pad process is a dyeing process known for cellulose fibers, which allows large amounts of wear and tear to be obtained by soaking or impregnating the fiber with the dye solution in a trough with the shortest liquor ratio and usually only passing through the pad once with a short dyeing time to dye textile fiber materials and then fix them.
• Tailing / reversed tailing is the difference in strength and nuance between the beginning and the end of a game.
• the end unevenness is noticeable in differences in strength, whereas shifts in the shade can often occur with combination dyeings.
• Tailing is a weakening of the color strength between the beginning and end of the batch, which is due to a decrease in the dye concentration in the trough. This dye depletion of the liquor is caused by the dye being drawn up during the padding process. Differences in strength and shade based on tailing occur particularly with dyes with medium to high substantivity, and very particularly often when coloring light shades.
• Reversed tailing is an increase in color strength between the beginning and end of the batch, which is due to the increase in the dye concentration in the trough. This dye accumulation in the padding liquor is caused by a preferred water adsorption in the padding process. Differences in strength and shade based on reversed tailing occur with dyes of low substantivity, especially when coloring dark shades.
• the present invention relates to a novel process for dyeing cellulose fibers at the same end, preferably in light shades.
• the present invention thus relates to a process for dyeing cellulose fibers or cellulose-containing mixed fibers with direct and / or reactive dyes using the padding process, which is characterized in that an aqueous liquor is used which contains at least one water-soluble direct or reactive dye and at least one Water-soluble anionic, fiber-affine, colorless organic compound with an affinity factor A at a concentration of 0.2-0.3 g / l on mercerized cotton from 1.1 to 4, the factor A being the quotient of the concentration of the water-soluble, fiber-affine, colorless organic compound in a dye-free liquor before being impregnated to the concentration of the water-soluble, fiber-affine, colorless organic compound in the dye-free liquor squeezed.
• compounds are termed colorless if their absorption maximum lies outside the visible spectral range or their absorption is very low in the visible range.
• the water-soluble, fiber-affine, colorless organic compound used in the process according to the invention is a compound with "dye character", i.e. the behavior of this compound under dyeing conditions corresponds to the behavior of a substantive dye, i.e. the compound has a certain substantivity for cellulose.
• the fiber-affine, colorless organic compounds advantageously contain 1 to 6, preferably 1 to 4 acidic water-solubilizing groups, which are in particular carboxyl groups or especially sulfonic acid groups.
• the process according to the invention is suitable for all pure cellulose fibers, e.g. mercerized or leached or bleached cotton or cellulose, as well as for cellulose-containing mixed fibers, e.g. Polyester / cellulose blended fabrics, equally applicable, without being limited to certain direct or reactive dyes or certain fiber-reactive groups of the reactive dyes; It is also surprising that regardless of the concentration of the dyes, regardless of the electrolyte content or alkali, regardless of conventional dyeing aids (wetting agents) and regardless of the dipping time and the trough content, identical dyeings are obtained.
• the direct dyes which can be used in the process according to the invention are the customary direct dyes, for example the "Direct Dyes” mentioned in Color Index, 3rd edition (1971) Volume 2 on pages 2005 to 2478.
• Reactive dyes are understood to be the usual dyes that form a chemical bond with the cellulose, e.g. the "Reactive Dyes” listed in Color Index, Volume 3 (3rd edition, 1971) on pages 3391 to 3560 and in Volume 6 (revised 3rd edition, 1975) on Pages 6268 to 6345.
• direct or reactive dyes with an affinity factor B for mercerized cotton at a concentration of 0.1 gram per liter of at least 1.1 are used in the process according to the invention, the affinity factor B being the quotient of the concentration of the dye in the original liquor without addition the water-soluble, fiber-affine, colorless organic compound to the concentration of the dye in the squeezed liquor.
• dye mixtures are used in the process according to the invention, e.g. Mixtures of different reactive dyes or different direct dyes or mixtures of different direct and reactive dyes, at least one of the dyes used should have an affinity factor B of at least 1.1.
• the determination of the affinity factor A for the water-soluble, fiber-affine, colorless organic compound or the determination of the affinity factor B for the direct or reactive dyes is carried out by measuring the concentration of the original liquor and the squeezed liquor by forming the ratio of the measured concentrations, ie
• the concentration of the original liquor corresponds to the amounts of dye or colorless organic compound used.
• the concentration in the squeezed or original liquor is measured by methods known per se, such as spectrophotometric e.g. at the absorption maximum or by chromatographic means (e.g. HPLC).
• Mercerized cotton is used both for the determination of the affinity factor A from 1.1 to 4 and for the determination of the affinity factor B of at least 1.1, the concentration of water-soluble, fiber-affine, colorless organic compound being 0.2 to 0.3 g / I and 0.1 g / I of direct or reactive dye in the original liquor.
• the water-soluble, fiber-affine, colorless organic compound alone or the direct or reactive dye alone is used.
• the mercerized cotton [140 g / m 2 , thread count / cm 2 : warp / weft 25/22, yarn number: Tex warp / weft 30/30] 25 ° C and 60% relative humidity is conditioned to constant weight, the fabric is impregnated with a liquid absorption of approx. 200 percent by weight at room temperature with the original liquor containing a salt, in particular Na 2 S0 4, for example 10 g / l Na 2 S0 4 is squeezed to 70% weight gain after a diving time of approx. 2-4 seconds (including air passage) and the concentration of the squeezed liquor of dye or colorless compound is determined.
• a salt in particular Na 2 S0 4
• the amount of dyes in the process according to the invention generally depends on the desired color strength, with end unevenness especially in the case of light shades, i.e. at a concentration of 0.05 g / l or less to about 20 g / l.
• a particularly preferred embodiment of the process according to the invention is characterized in that a mixture of (1) at least one direct or reactive dye or at least one direct and at least one reactive dye and (2) at least one water-soluble anionic, fiber-affine, colorless organic compound is used, so that the dye affinity factor (B) in the mixture is 0.9 to 1.15, in particular 0.95 to 1.1.
• the designation g / I means grams per liter.
• the amount of water-soluble, fiber-affine, colorless organic compound in the process according to the invention depends in particular on the amount of dye used and the factor B, a minimum amount of 0.5 g / l having proven to be advantageous.
• C 1 -C 4 alkyl means alkyl radicals or alkyl constituents which contain 1 to 4 carbon atoms and can be straight-chain or branched. Examples are methyl, ethyl, n-propyl, isopropyl, n-butyl, sec. Butyl, isobutyl and tert. Butyl.
• Halogen means for example fluorine, bromine or preferably chlorine.
• Acyl is especially formyl, C 1 -C 4 -alkylcarbonyl, such as acetyl or propionyl, or benzoyl.
• Suitable water-solubilizing group Z are, in particular, carboxyl groups or especially sulfonic acid groups.
• a compound can contain both only carboxy groups or only sulfo groups as well as both carboxy and sulfo groups.
• m is preferably 1 to 4.
• Compounds of the formulas (1) to (3) preferably contain 2 to 4 acidic water-solubilizing groups Z, while the other compounds of the formula (4) contain in particular 1 or 2 water-solubilizing groups Z.
• the phen group and the rings a and ⁇ are hydroxy, cyano, nitro, halogen, such as fluorine, chlorine or bromine, C 1 -C 4 -alkyl, such as, for example, methyl, ethyl, propyl, isopropyl or butyl, trifluoromethyl, C i - C 4 alkoxy, such as methoxy, ethoxy, propoxy, isopropoxy or butoxy, C 2 -Cs alkoxycarbonyl, amino, mono- or di-Ci-C 4 -alkylamino, phenylamino, carbamoyl, sulfamoyl, ureido, Ci-C7- Acylamino, such as acetylamino, propionylamino or benzoylamino, Ci-C 4 alkylsulfonyl, such as methylsulfonyl, sulfomethyl or sulfatoethy
• V is preferably R 2 -X 2 - and W is especially R 3 -X 3 -.
• Compounds of the formula (1) in which X i , X 2 and X 3 are -NH- or V and W, independently of one another, are preferably -OH or -NH 2 are particularly preferred.
• X 1 , X 2 and X 3 each have -NH-, R 1 , R 2 and Rs, independently of one another, phenyl or naphthyl, Z the sulfonic acid group and m 2 or preferably 3 means.
• the compounds used in the process according to the invention are either in the form of the free acid or preferably as their salts.
• suitable salts are the alkali metal, alkaline earth metal or ammonium salts or the salts of an organic amine.
• suitable salts include the sodium, potassium or ammonium salts or the salt of triethanolamine.
• the water-soluble, fiber-affine, colorless organic compounds used in the process according to the invention are known per se and can be prepared by methods known per se.
• the reactive dyes of the formula (25) can contain up to six identical or different types of reactive radicals.
• Fiber-reactive radicals X are to be understood as those which react with the hydroxyl groups of cellulose, the amino, carboxy, hydroxyl and thiol groups in wool and silk, or with the amino and possibly carboxy groups of synthetic polyamides to form covalent chemical bonds capital.
• X is preferably a fiber-reactive radical of the aliphatic, aromatic or heterocyclic series which is bonded to the radical D directly or via a bridge member.
• X is preferably directly or via an optionally monoalkylated amino group, such as, for example, -NH-, -N (CH 3 ) -, -N (C 2 Hs) - or -N (C 3 H 7 ) - or via a bridge member containing an amino group , for example phenylene bound to the radical D.
• an optionally monoalkylated amino group such as, for example, -NH-, -N (CH 3 ) -, -N (C 2 Hs) - or -N (C 3 H 7 ) - or via a bridge member containing an amino group , for example phenylene bound to the radical D.
• the fiber-reactive radicals X in formula (25) are, for example the following aliphatic or aromatic radicals into consideration:
• fiber-reactive radicals X of the heterocyclic series should be mentioned, such as, for example, 2,4-dichlorotriazinyl-6, mono-, di- or trihalopyrimidinyl radicals, such as 2,4-dichloropyrimidinyl-6, 2,4,5-trichloropyrimidinyl-6 -, 2,4-dichloro-5-nitro- or 5-methyl- or -5-carboxymethyl- or -5-carboxy- or -5-cyano- or -5-vinyl- or -5-sulfo- or -5 -mono-, -di or -trichloromethyl- or 5-methylsulfonylpyrimidinyl-6-, 2,5-dichloro-4-methylsulfonyl-pyrimidinyl-6-, 2-fluoro-4-pyrimidinyl-, 2,6-difluoro-4 -pyrimidinyl-, 2,6-difluoro-5-chloro-4-
• the cation Ka in formula (26) means e.g. a hydrogen, sodium, potassium, lithium or ammonium ion or the cation of an organic amine, e.g. of triethanolamine.
• Suitable water-soluble reactive dyes of the formula (26) are the dye residues D given under formula (25) which contain one to six, in particular up to two, reactive residues X.
• the reactive dyes of the formula (25) or (26) can contain up to six identical or different reactive groups.
• the reactive dyes of the formula (25) or (26) preferably contain highly reactive radicals X. These are radicals X which are more reactive than the 2-chloro-1,3,5-triazinyl radicals which are in the 4-position by one of the above mentioned substituents Q 1 are substituted.
• Examples of such highly reactive radicals X are, for example: 2-fluoro-4- (Q 1 ) -triazinyl-6-, where the substituents given above for Q 1 are suitable, 2,4-dichlorotriazinyl-6-, 2, 4-dichloropyrimidine-5-carbonyl-, 5-cyano- or 5-methylsulfonyl-2,4-dichloropyrimidinyl-6-, difluorochloropyrimidinyl-, such as 2,4-difluoro-5-chloropyrimidinyl-6-, 2,3-dichloroquinoxaline 6-carbonyl, vinylsulfonyl, ⁇ -sulfatoethylsulfonyl, ⁇ -chloroethylsulfonyl, ⁇ -thiosulfato-ethylsulfonyl, ⁇ -acetoxyethylsulfonyl.
• Reactive dyes of the formula (26) in which X is a radical of the formula are particularly preferably used in the process according to the invention means in which R is hydrogen or Ci-4-alkyl, such as methyl, ethyl, propyl, isopropyl, butyl, sec-butyl, isobutyl or tert-butyl, and Q 2 is an optionally substituted amino group, a bonded via a phenylenediamine radical Difluorochloropyrimidinylrest or means a vinylsulfonyl, ⁇ -sulfatoethylsulfonyl, ⁇ -thiosulfatoethylsulfonyl, ⁇ -chloroethylsulfonyl or ⁇ -acetoxyethylsulfonyl radical bonded directly or via an aromatic or aliphatic bridge member.
• R is hydrogen or Ci-4-alkyl, such as methyl, ethyl, prop
• the dye liquor can also contain alkaline compounds for fixing the reactive dyes, for example sodium carbonate, sodium bicarbonate, sodium hydroxide, disodium phosphate, trinatri umphosphate, borax, aqueous ammonia or alkali donors, such as sodium trichloroacetate.
• alkaline compounds for fixing the reactive dyes for example sodium carbonate, sodium bicarbonate, sodium hydroxide, disodium phosphate, trinatri umphosphate, borax, aqueous ammonia or alkali donors, such as sodium trichloroacetate.
• alkali donors such as sodium trichloroacetate.
• a mixture of water glass and a 30% aqueous sodium hydroxide solution has proven itself very well as an alkali.
• the pH of the dye liquors containing alkali is generally 7.5 to 13.2, preferably 8.5 to 11.5.
• the padding liquors are expediently prepared by dissolving the dye and by adding the water-soluble, fiber-affine, colorless organic compound and alkali.
• the dyeing liquors can contain other conventional additives, e.g. Electrolytes, e.g. Sodium chloride or sodium sulfate as well as urea, glycerin and / or sodium formate.
• thickeners such as e.g. Alginates, starch ether or locust bean gum may be contained therein.
• alkali-resistant wetting agents e.g. Sulfonates of polycarboxylic acid esters, e.g. Dihexyl sulfosuccinate or dioctyl sulfosuccinate; Straight chain or branched chain alkylarylsulfonates with at least 6 carbon atoms, e.g. Dodecylbenzenesulfonates or preferably alkylsulfonates whose alkyl chain contains 8 to 20 carbon atoms, e.g. Add dodecyl sulfonates or pentadecyl sulfonates.
• the sulfonates mentioned as wetting agents are generally present as alkali metal salts, in particular as sodium salts or also as ammonium salts.
• the amounts in which the wetting agents are added to the padding liquor are more appropriately between 1 to 10 g, preferably 0.5 to 3 g, per liter of liquor.
• the dye fixation on pure cellulose fibers is carried out by customary methods, the fixing time and fixing temperature depending on the fiber material and, in the case of reactive dyes, on the reactivity of the reactive dyes used. Steaming times in saturated steam between 30 seconds and 15 minutes at 100 to 105 ° C are generally sufficient to achieve a uniform and optimal dye fixation. High-temperature steaming or dry heat steaming is used to fix at 105-190 ° C for 20 seconds to 8 minutes. In particular, the reactive dyes are fixed with steam at a temperature of 100 ° C to 150 ° C for 30 seconds to 12 minutes.
• the dyes containing at least one reactive dye are fixed at 100 to 200 ° C, the fixing time being in particular between 10 seconds and 10 minutes, preferably 150 ° C to 200 ° C. If necessary, the textile material is dried before fixing.
• fixation can also be carried out using the cold dwell process; such as. 6 to 12 hours residence time at room temperature.
• the dyed cellulose material can be washed out in the usual way to remove unfixed dye.
• the substrate is treated, for example, at from 40 ° C. to cooking temperature in a solution which contains soap or synthetic detergent. Treatment with a fixative can then be carried out to improve wet fastness.
• the dyeings are completed by rinsing in hot and / or cold water and, if appropriate, with subsequent washing in the presence of a commercially available detergent, followed by rinsing in water and drying.
• Suitable cellulose fibers are natural fibers, such as mercerized or bleached cotton and linen (bleached), and regenerated fibers, such as viscose, polynosic and copper rayon. Mainly woven or knitted fabrics of these fibers are used.
• the dive time is 2 seconds.
• the affinity factor B 1 of the dye specified above in the padding liquor above is 1.05.
• the affinity factor is determined spectrophotometrically (UVICON 810), the concentration of the padding liquor prior to impregnation and the concentration of the squeezed liquor being determined.
• the affinity factor is defined as:
• the affinity factor is a critical variable for the end inequality based on differences in affinity of the dyes. With a value approximating the ideal affinity factor of 1.0 of approx. 0.95 to 1.05, no end inequality is discernible.
• the quantity stated for the water-soluble, fiber-affine, colorless organic compound and the numerical values for the affinity factor A relate to commercially available pure substances with an active substance content of at least 70%.
• the cotton cretonne fabric is dried at 100 ° for one minute, padded with a liquor containing 250 g / l NaCl and 10 ml / l 30% NaOH with a squeezing effect of about 80% and then for one minute fixed in saturated steam at 101 to 103 °.
• the cotton cretonne fabric is then rinsed first with cold water and then with hot to boiling water, soaped at the boil with 1 to 2 g / l of a detergent, rinsed again with hot and then with cold water and then dried.
• Comparative Example 1 If the procedure described in Example 1 is followed, but a padding liquor is used without the compound of the formula (201), then a cotton cretonne fabric dyed differently in orange color is obtained, the beginning of the lot towards the end of the lot is colored darker because the squeezed liquor is depleted of dye and thus diluted.
• the affinity factor of the orange-colored dye from Example 1 in the padding liquor without the compound of the formula (201) is 1.23.
• the dive time is 2 seconds.
• the affinity factor of the dye given above in the padding liquor above, determined according to the information in Example 1 at ⁇ max 550 nm, is 1.04.
• the padded fabric is then dried on the hot flue at 100 ° for 1 minute and then heat set on the hot flue at 160 ° for 1 minute.
• Comparative Example 2 If the procedure described in Example 2 is followed, but a padding liquor is used without the compound of the formula (202), a cotton cretonne fabric dyed in different shades of red is obtained, the beginning of the lot compared to the end of the lot is colored much darker.
• the affinity factor of the red-coloring dye from Example 2 in the padding liquor without the compound of the formula (202) is 1.21; determined according to the information in Example 1.
• the cellulose is steamed with saturated steam at 101 to 103 ° for one minute.
• a cellulosic cretonne fabric dyed in beige color with good fastness properties is obtained.
• the dive time is 2 seconds.
• the affinity factor of the dye given above in the above liquor, determined according to the information in Example 1 at ⁇ max 625 nm, is 1.02.
• the cotton fabric is dried on the hot flue for one minute, padded with a liquor containing 250 g / l NaCl and 10 ml / l 30% NaOH with a squeezing effect of about 80% and then with saturated steam at 101 to 103 ° steamed for a minute.
• a cotton fabric dyed in the same shade of blue with good fastness properties is obtained.
• Comparative Example 4/1 If the procedure is as described in Example 4, but a padding liquor is used without the compound of the formula (204), a cotton fabric dyed in a different shade of blue is obtained. The affinity factor of the dye used in the padding liquor without the compound of the formula (204) is 1.40.
• the affinity factor of H-acid in a block liquor containing 10 g / I Na 2 S0 4 with 0.3 g / I H-acid is: 1.00.
• a colorless, water-soluble, organic compound with an affinity factor of 1.0 used in the padding liquor has no influence on the affinity factor of the dye used and thus the end imbalance is not improved.
• the dive time is 2 seconds.
• the goods speed is 10 m / minute.
• the fabric is then fixed in a continuous steamer with saturated steam from 101 ° to 103 ° for 2 minutes.
• the fabric is then rinsed and dried several times.
• the dive time is 2 seconds.
• polyester / cotton blend is then dried at 100 ° for 1 minute and then thermosolated at 210 °.
• Example 2 After the washing, soaping and rinsing and drying given in Example 2, a piece of fabric of the same color, dyed in yellow, is obtained.
• Comparative Example 6 If the procedure is as described in Example 6, but a padding liquor is used without the compound of the formula (206), a polyester / cotton blend fabric dyed yellow is obtained. The affinity factor of the dye without the compound of formula (206) in the padding liquor is 1.24.
• the cotton jersey is then left to stand for 6 hours at room temperature with no air.

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• 1987
  • 1987-03-24 ES ES87810172T patent/ES2011061B3/es not_active Expired
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