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
  • D06P3/66—Natural or regenerated cellulose using reactive 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
  • D06P1/60—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 polyethers
  • D06P1/607—Nitrogen-containing polyethers or their quaternary derivatives
• • 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
  • D06P1/655—Compounds containing ammonium groups
  • D06P1/66—Compounds containing ammonium groups containing quaternary ammonium 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
  • D06P3/62—Natural or regenerated cellulose using direct dyes

Definitions

• the invention relates to a process for the discontinuous dyeing of cellulose fibers in the presence of a leveling agent which contains at least one quaternary ammonium group, a polyalkyleneoxy group, an ester group and a hydrophobic hydrocarbon radical.
• a hydrophobic hydrocarbon radical is preferably understood to mean an optionally unsaturated aliphatic radical with more than 8 carbon atoms or a cycloaliphatic or aromatic radical with more than 10 carbon atoms.
• Cycloalkyl in particular represents cyclopentyl, cyclohexyl, tetra- and decahydronaphthyl and their derivatives substituted by C i -C 12 alkyl or the abietyl radical.
• Suitable aryl radicals are, for example, the phenyl and naphthyl radicals and their derivatives substituted by C 1 -C 12 alkyl, cyclohexyl or phenyl-C 1 -C 3 alkyl.
• Aralkyl preferably represents benzyl or phenylethyl substituted by C 1 -C 12 alkyl.
• radicals R in formula (I) the octyl, decyl, undecyl, dodecyl, tetradecyl, pentadecyl, hexadecyl ,.
• Suitable anions X (-) are customary inorganic or organic anions, for example chloride, bromide, iodide, methosulfate, ethosulfate, sulfate, phosphate, phosphite, methanesulfonate, acetate or toluenesulfonate.
• the compounds (I) are prepared by known processes.
• cellulose in particular be used with direct dyes, which are described, for example, in “Color Index” 3rd edition (1971), Vol. 2, pp. 2007-2477, and with reactive dyes, which are described, for example, in “The Chemistry of Synthetic Dyes “(K. Venkataraman), V ol. VI (1972) can be colored.
• leveling agents mentioned is particularly advantageous when dyeing with direct dyes and especially when salt is added before the dye is added ("all-in" process).
• Salt is to be understood here as the electrolyte, the addition of which is customary in order to achieve a high dye yield, preferably sodium sulfate or sodium chloride.
• Direct dyes absorb very quickly with exhaust dyeing processes, even at low temperatures. This creates irregularities that have to be compensated for in the course of dyeing. Salt accelerates the uptake, but is necessary to achieve the desired yield. In order to avoid excessive unevenness in the beginning, the salt is therefore generally not added until the final temperature has been reached, and usually in portions. It is a complex way of working.
• Salt can only be added at the beginning ("all-in" process) only under very favorable conditions (well-migrating dyes, high liquor circulation rate or goods circulation speed). With this simpler method of working, the unevenness that initially arises must be compensated for by migration, which requires longer dyeing times or more leveling aids (and therefore a lower dye yield) than in the case of salt addition.
• the leveling agents cannot be slowed down to the desired extent with the usual leveling aids: either the leveling effect of the leveling agent is tools too low or the yield is impaired too much. In addition, the effect is very dependent on the type of dye.
• the leveling agents slow down the absorption of the dyes in the initial phase of dyeing at low temperature, especially below 50 ° C. This avoids inadmissible irregularities.
• the effect of the auxiliaries wears off, and the absorption of the dyes can be controlled via the temperature control.
• the auxiliaries to be used according to the invention hardly retain any dye in most cases. If in special cases, e.g. If a large amount of auxiliaries or dyes with strong interaction with the auxiliary are required, the restrained effect of the auxiliary can be further reduced by dyeing at an alkaline pH (above pH 8) compared to weakly acidic or neutral staining.
• the order of the additions is either (a) salt, leveling agent, dyes or (b) salt, leveling agent + dyes or (c) salt + leveling agent, dyes.
• the amount of leveling agent is generally between 0.1 and 2%, based on the weight of the textile to be dyed.
• the permissible initial rate of bath depletion depends on the demands on the level, the goods, the dyeing system, the color depth and nuance and the dyes (pull-up behavior, combinability, migrability). It is generally between 20 and 60% bath exhaustion in the first 10 minutes; preferably between 20 and 40% / 10 min.
• the leveling agents (I) are furthermore preferably suitable for dyeing with reactive dyes; especially if leveling agents, salt or salt and alkali are added before the dyes.
• salt and alkali are usually added after the reactive dyes, in portions, in order to avoid the dyes being drawn in or fixed too quickly and thus resulting in irregularities.
• particularly favorable dyeing conditions good leveling dyes, high liquor flow or running speed of the goods, temperature / pH control
• salt or salt and alkali be added to the dye liquor at the beginning without dyeing unevenly.
• leveling agent (I) in the presence of the leveling agent (I) can be dyed under the usual practical conditions using an "all-in" method.
• salt and alkali are added to the dye liquor, then the leveling agent, either before or together with the reactive dye.
• the leveling agent amount and process control temperature and / or pH value are selected according to the same criteria as described above for direct dyes.
• a 600 g chalk spool made of bleached cotton is dyed in a laboratory cross-winder. 12 l of liquor are heated to 50 ° C. with 60 g of NaCl, pumped into the dyeing vessel and then pumped from the inside out at 2 circulations / min through the cheese. After 5 minutes of circulation, 1.2 g of the auxiliary from Table 3 and, after a further 5 minutes, 0.4 g of Direct Orange 39 (CI 40 215), 0.95 g of Direct Red 76 (CI 40 270) and 0.54 g Direct Blue 71 (CI 34 140) dissolved in approx. 150 ml water, added.
• the mixture is heated to 90 ° C at 2 ° C / min, dyed at 90 ° C for 60 min, cooled to 70 ° C in 10 min, rinsed 3 x 10 min and 20 min at 18 g of a cationic aftertreatment agent. A level coloring is obtained.

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• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Coloring (AREA)

Applications Claiming Priority (2)

Publications (3)

Family

ID=6206585

Family Applications (1)

Country Status (2)

Cited By (4)

Families Citing this family (3)

Family Cites Families (6)

• 1983
  • 1983-08-16 DE DE19833329445 patent/DE3329445A1/de not_active Withdrawn
• 1984
  • 1984-08-08 DE DE8484109394T patent/DE3472426D1/de not_active Expired
  • 1984-08-08 EP EP84109394A patent/EP0141078B1/fr not_active Expired

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