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
  • D06P3/605—Natural or regenerated cellulose dyeing with polymeric dyes; building polymeric dyes on fibre
• • 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
  • D06P1/30—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 sulfur dyes
  • D06P1/305—SO3H-groups containing 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
  • D06P3/58—Material containing hydroxyl groups
  • D06P3/60—Natural or regenerated cellulose
  • D06P3/605—Natural or regenerated cellulose dyeing with polymeric dyes; building polymeric dyes on fibre
  • D06P3/6066—Natural or regenerated cellulose dyeing with polymeric dyes; building polymeric dyes on fibre by using reactive polyfunctional compounds, e.g. crosslinkers

Definitions

• This invention relates to dye compositions and methods and more particularly to dye compositions comprising as the principal constituents, thiosul-fonic acids of sulfur dyestuffs in the form of their water-soluble salts and a bior poly-functional chemical substance capable of reacting by cross-linking with the thiosulfonic acids of the sulfur dyestuffs to give stable reaction products.
• the dyestuff compositions and methods of the present invention have overcome the above mentioned prior art disadvantages, have markedly simplified the procedure and provided efiicient dyeing of the textile material with good dry and wet fastness properties.
• bior polyfunctional chemical compounds which may be used as cross-linking agents with the thiosulfonic acids of sulfur dyestuffs in accordance with this invention are as follows:
• Dior poly-epoxides or -chlorohydrines the tris-acryloyl-hexahydro-1,3,5-s-triazine of the formula O(
• the textile material to be treated in accordance with this invention may be in any of the usual forms, such as fibers, yarns, and woven or knitted fabrics.
• the basic fiber of this material may be any of the presently known cellulosic textile fibers, e.g. cotton, rayon, linen. It is surprising that, when mixed fabrics consisting of a portion of cellulosic material and a portion of a synthetic fiber are dyed according to the invention, the synthetic portion is also dyed, which was not possible heretofore with the known processes.
• the abovementioned simplified and substantially less expensive .process of the present invention avoids the usual necessity of reducing the dyestuff with alkaline sulfides, such as sodium sulfide or sodium hydrogensulfide. Instead, the present process uses thiosulfonic acids of sulfur dyestuffs in the form of their water-soluble salts in unreduced state and .provides, for the first time, efficient dyeing of said textile materials therewith in a simpler manner and without the concurrent use of reducing agents.
• EXAMPLE 1 A cotton fabric is impregnated with a solution containing 50 g./ litre Hydrosol Fastgreen 3 B (Color Index: Solubilized Sulfur Green 2, CI No. 53572), 20 -g./lit-re ethylene-glycol-bis-glycide ether and 5 g./ litre calcined sodium carbonate, it is dried at 80 C. and then subjected to a dry heat treatment for 1 minute at 150 C.; subsequently the fabric is rinsed, oxidized in a liquor ratio of 1:20 for 10 minutes at -80 C.
• Hydrosol Fastgreen 3 B Color Index: Solubilized Sulfur Green 2, CI No. 53572
• 20 -g./lit-re ethylene-glycol-bis-glycide ether 20 -g./lit-re ethylene-glycol-bis-glycide ether and 5 g./ litre calcined sodium carbonate
• EXAMPLE 2 A mixed cotton-polyester fabric is impregnated with a solution containing 40 ig./litre Hydrosol Fast-katechu RL (Color Index: Solubilized Sulfur Brown 52 Cl No. 5 3321), 30 g./'litre of a 65% solution of methyl-etherified trimet-hyl-ol melamine, and 10 g./ litre ammonium chloride, it is dried at C., and then subjected to a dry heat treatment for 1 minute at 220 C. The fabric is then rinsed and dried. The dyeing shows good fastness to washing and to light.
• Hydrosol Fast-katechu RL Color Index: Solubilized Sulfur Brown 52 Cl No. 5 3321
• 30 g./'litre of a 65% solution of methyl-etherified trimet-hyl-ol melamine 10 g./ litre ammonium chloride
• EXAMPLE 3 A cotton fabric is impregnated with a solution containing 50 g./litre Hydrosol Fastyellow G (a thiosulfonic acid sulfur dyestuff) (Color Index: Solubilized Sulfur Yellow '5), 40 g./litre tris-acryloyl-hexahydro-l,3,5-s-triazine, and 10 g./litre calcined sodium carbonate, it is then dried at C. and steamed for 1 minute at C. Subsequently, the fabric is rinsed, oxidized with bichromate-coppersulfate-acetic acid as indicated in Example l, rinsed again, and finished. The dyeing thus obtained shows good wet fastness properties.
• Hydrosol Fastyellow G a thiosulfonic acid sulfur dyestuff
• EXAMPLE 4 A cotton fabric is impregnated with a solution containing 40 g./litre Hydrosol Fast-katechu RL (Color In dex: Solubilized Sulfur Brown 52, CI No. 53321), 10 g./ litre ammonium chloride, and 30 g./litre tris-(aziridinyl)-phosphinoxide, it is dried at 100 C. and then subjected to a dryheat treatment for 1 minute at 200 C. The fabric is then rinsed, oxidized with bichromate-cop persulfate-acetic acid as indicated in Example 1, rinsed again, and dried. The dyeing shows a good fastness to washing and to washing with peroxide.
• Hydrosol Fast-katechu RL Color In dex: Solubilized Sulfur Brown 52, CI No. 53321
• 10 g./ litre ammonium chloride 10 g./ litre ammonium chloride
• EXAMPLE 5 A cotton fabric is impregnated with a solution containing 30 g./litre Hydrosol Fast-khaki AL (a thiosul' fonic acid sulfur dyestuff) (Color Index: Solubilized Sulfur Green 19), g./litre calcined sodium carbonate, and 20 g./litre of the tris-chloroacetyl compound of the diethylene-triamine, it is dried at 100 C., and subjected to a dryheat treatment for 1 minute at 200 C. The fabric is then rinsed and dried. The dyeing shows a very good fastness to washing and to washing with peroxide.
• Hydrosol Fast-khaki AL a thiosul' fonic acid sulfur dyestuff
• EXAMPLE 6 A cotton fabric is impregnated with a solution containing 50 g./litre Hydrosol Fast-olive BBN N(Color Index: Solubilized Sulfur Green 9, CI No. 53006), 30 g./litre of a 65% solution of methyl-etherified tri-methylol-melamine, and 10 g./litre ammonium chloride, it is dried at 100 C., and then subjected to a dry heat treatment for 1 minute at 220 C.
• the fabric is rinsed and dried.
• the dyeing shows good fastness to washing and light.
• the fixation of the dyestuff can also be obtained with the same success, when in this example the impregnated and dried cotton fabric is steamed for 60 seconds at 105 C. instead of submitted to the dryheat treatment.
• EXAMPLE 7 A mixed cotton-polyacrylonitrile fabric is impregnated with a solution containing 40 g./litre Hydrosol Fast-katechu RL (Color Index: Solubilized Sulfur Brown 52, CI
• EXAMPLE 8 A cotton fabric is impregnated with a solution containing 40 g./litre Hydrosol Fastbrown BT (Color Index: Solubilized Sulfur Brown 16, CI No. 53286), 50 g./ litre ethylene-bis-(2-hydroxy-3-chloro-l-propyl -ether and 20 g./litre calcined sodium carbonate, it is dried at C. and subjected to a dry heat treatment for 1 minute at 220 C. Subsequently, the fabric is rinsed and dried. The dyeing shows a good fastness to washing and to washing with peroxide.
• a water-soluble, unreduced dyestuff composition for dyeing textile materials comprising as the principal constituents, water-soluble salts of thiosulfonic acids of sulfur dyestuffs and a polyfunctional cross-linking agent, which constituents react with each other at elevated temperatures to give stable reaction products and enable the dyeing of said textile materials without the use of alkali reducing agents.
• a method of dyeing textile materials comprising impregnating the textile material with an aqueous solution of salts of thiosulfonic acids of sulfur dyestuffs, and a polyfunctional cross-linking agent, drying the impregnated material and subjecting the dried material to an elevated temperature for a relatively short period of time sufficient to effect reaction between the polyfunctional cross-linking agent and the dyestuff.
• the polyfunctional cross-linking agent is an etherified polymethylol melamine resin which provides a resin finish on the cloth in addition to reacting with the dyestuff to effect the dyeing of the textile material.

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• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Structural Engineering (AREA)
• Coloring (AREA)
• Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Applications Claiming Priority (1)

Publications (1)

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Family Applications (1)

Country Status (6)

Cited By (1)

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Citations (5)

• 1963
  • 1963-11-27 DE DE19631444219 patent/DE1444219A1/de active Pending
• 1964
  • 1964-11-16 NL NL6413327A patent/NL6413327A/xx unknown
  • 1964-11-25 US US413959A patent/US3294476A/en not_active Expired - Lifetime
  • 1964-11-26 CH CH1526064A patent/CH423711A/de unknown
  • 1964-11-26 GB GB48109/64A patent/GB1034606A/en not_active Expired
  • 1964-11-27 BE BE656363D patent/BE656363A/xx unknown

Patent Citations (5)

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