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
  • D06P1/22—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 vat dyestuffs including indigo
  • D06P1/221—Reducing systems; Reducing catalysts
• • 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
  • D06P1/22—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 vat dyestuffs including indigo
• • 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
  • Y10S8/916—Natural fiber dyeing
  • Y10S8/918—Cellulose textile

Definitions

• the method according to the invention can also be carried out as a printing method, e.g. as a two-phase printing process by printing on the vat dyes with a printing paste containing conventional thickeners and reducing agents, intermediate drying, padding on a padding liquor containing solvents and alkali, and developing in a damper suitable for two-phase printing, again being finished as usual by rinsing, oxidizing and soaping.
• a printing method e.g. as a two-phase printing process by printing on the vat dyes with a printing paste containing conventional thickeners and reducing agents, intermediate drying, padding on a padding liquor containing solvents and alkali, and developing in a damper suitable for two-phase printing, again being finished as usual by rinsing, oxidizing and soaping.
• the amount of reducing agents and the other components used can thus generally be reduced.
• the process according to the invention for dyeing and printing with vat dyes can be used for cellulosic fiber materials in a wide variety of textile processing states.
• the appropriate dyes e.g. acid or dispersion dyes
• the solvents can at least partially be recovered and reused or otherwise used.
• Pre-cleaned cotton fabric is placed in a jigger containing a dye liquor of the following composition: 4 pieces indigo 2 parts Methanol 2 parts Monohydroxiacetone 10 parts an anionic wetting agent (10% solution of Subitol RZO®) 25 parts aqueous sodium hydroxide solution (40%) 957 pieces water 1000 pieces
• the temperature of the fleet is 50 ° C.
• the liquor ratio is 1: 6.
• the fabric After a dyeing time of 30 minutes, the fabric is oxidized and soaped as usual.
• Raw yarn is dyed continuously at a speed of 40 m / minute in a corresponding dyeing machine using a stock vat method.
• the stock vat is continuously introduced into the dye bath at a 1:20 dilution.
• the trunk is linked outside the dye bath at 50 ° C.
• the trunk has the following composition: 80 parts indigo 50 parts Isopropanol 50 parts Monohydroxiacetone 5 parts an anionic wetting agent (10% aqueous solution of Subitol RZO®) 150 pieces aqueous sodium hydroxide solution (40%) 665 pieces water 1000 pieces
• the dye pigment detached during the washing process is recovered using an ultrafiltration system and the permeate is disposed of anaerobically.
• a black-dyed cotton fabric with good levelness is obtained.
• the process is characterized by its good reproducibility in terms of color strength and levelness. Another advantage is the high durability of the paste despite the presence of the reducing agent.
• the liquor ratio is 1:20, the pH 13.1. After a dyeing time of 45 minutes, the fabric is oxidized and soaped as usual.
• ethanol instead of methanol, you can also use ethanol, n-propanol, iso-propanol, n-butanol, acetone, methyl ethyl ketone, cyclohexanone, diisopropyl ether, dioxane, tetrahydrofuran, glycerol formal, glycol formal, ethylene glycol, propylene glycol, ethylene glycol dimethyl ether, ethylene glycol monomethyl ether, with analog results - or -butyl ether, diethylene glycol monomethyl or ethyl ether, thiodiglycol, acetonitrile, pyridine, ⁇ -butyrolactone, pyrrolidone, N-methylpyrrolidone, 1,5-dimethylpyrrolidone, formamide, N, N-dimethylformamide, acetamide, N, N-dimethylacetamide, tris - (Dimethylamido) phosphate,
• Cotton fabric is placed on a commercial jet system at a fleet. ratio of 1:10 at 55 to 60 ° C.
• the dyebath is prepared in a similar way to a vat process:
• the trunk has the following composition: x parts dye 50 parts Methanol 5 parts Monohydroxiacetone or dihydroxy acetone 100 parts aqueous sodium hydroxide solution y parts water 1000 pieces
• the viling takes place at 55 ° C; the pH is 12.9. After about 20 minutes of reaction, the stock vat is diluted 1: 5 with water.
• the dye liquor obtained in this way is pumped into the dyeing machine and circulated there at 55 to 60 ° C. for 45 minutes. It is then oxidized and finished as usual.
• the veneer can also be sonicated by the trunk (55 ° C, frequency: 20 kHz, 50 to 100 watts), e.g. for dyes C.I. Vat Red 10 or C.I. Vat Green 3, speed up.

Landscapes

• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Chemical & Material Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Coloring (AREA)

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Applications Claiming Priority (2)

Publications (2)

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ID=4243923

Family Applications (1)

Country Status (13)

Cited By (8)

Families Citing this family (20)

Citations (2)

Family Cites Families (1)

• 1988
  • 1988-07-29 CH CH2891/88A patent/CH680180B5/de unknown
• 1989
  • 1989-07-20 DE DE8989810553T patent/DE58900214D1/de not_active Expired - Lifetime
  • 1989-07-20 EP EP89810553A patent/EP0357548B1/fr not_active Expired - Lifetime
  • 1989-07-20 ES ES89810553T patent/ES2025380B3/es not_active Expired - Lifetime
  • 1989-07-20 AT AT89810553T patent/ATE66260T1/de not_active IP Right Cessation
  • 1989-07-27 US US07/386,529 patent/US4950306A/en not_active Expired - Lifetime
  • 1989-07-28 YU YU01516/89A patent/YU151689A/xx unknown
  • 1989-07-28 JP JP1196473A patent/JPH02133684A/ja active Granted
  • 1989-07-28 IE IE246589A patent/IE61204B1/en not_active IP Right Cessation
  • 1989-07-28 BR BR898903787A patent/BR8903787A/pt not_active Application Discontinuation
  • 1989-07-28 KR KR1019890010700A patent/KR900001924A/ko not_active Application Discontinuation
  • 1989-07-28 ZA ZA895767A patent/ZA895767B/xx unknown
  • 1989-07-29 CN CN89106183A patent/CN1036148C/zh not_active Expired - Fee Related

Patent Citations (2)

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