Classifications

• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
  • D06B19/00—Treatment of textile materials by liquids, gases or vapours, not provided for in groups D06B1/00 - D06B17/00
  • D06B19/0005—Fixing of chemicals, e.g. dyestuffs, on textile materials
• • 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
  • D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
  • D06P5/02—After-treatment

Definitions

• the present invention relates to a process for the aftertreatment of fibers dyed or printed with reactive dyes consisting of or containing cellulose.
• the new process is characterized in that the aftertreatment process consists of a sequence of alternating rinsing and liquor-free heat treatment processes.
• This liquor-free heat treatment of the fiber is preferably brought about by the action of hot air and / or steam and / or contact heat and / or radiant heat and / or high-frequency heating.
• the fiber is preferably exposed to temperatures of 80 to 200 ° C. and in particular of 90 to 100 ° C., preferably for 0.2 to 10 minutes, in particular 0.5 to 2 minutes.
• the fiber material is preferably used as a textile fabric in the process according to the invention, but it is the fiber as such, for example in the form of a spool yarn, can be treated according to the invention.
• the rinsing and the liquor-free heat treatment processes are preferably carried out from the inside to the outside of the fiber or the fabric.
• the process is suitable both for washing out stain dyeings and for washing continuous dyeings and prints.
• the new process surprisingly makes it possible to significantly shorten the time-consuming and energy-intensive washing-out process of the dye hydrolyzate after dyeing or printing, while at the same time saving water and energy.
• the technical facilities necessary for the implementation of the new method are well known and can be easily installed in existing conventional dyeing and / or washing facilities. These are devices which generate hot air and / or superheated steam and / or contact heat and / or infrared radiation and / or high-frequency radiation.
• suitable mixed fibers containing cellulose are: cellulose / polyester mixed fibers, cellulose / polyamide mixed fibers.
• the reactive dyeings suitable for the process according to the invention are preferably those which have at least one haloquinoxalinyl, halotriazinyl, halopyrimidinyl and / or vinylsulfonyl radical.
• Suitable reactive dyes are, for example, sulfo-containing, water-soluble, organic dyes from the series of the anthraquinone, azo, azo metal complex, formazane, oxazine and phthalocyanine series.
• the reactive dyes specified in the application examples are listed as examples.
• the product aftertreated by the method according to the invention shows an improved product appearance, particularly in the case of sensitive qualities, by protecting the material.
• the moisture content of the aftertreatment fiber material during the aftertreatment is preferably 30 to 180 percent, based on the dry weight of the fiber.
• the parts designated in the following examples are parts by weight in all cases.
• the exhausted dye liquor is drained and the coil is flooded twice in succession with 750 parts of process water at 25 ° from the inside to the outside in a time of 30 seconds each.
• the mixture is then heated to 110 ° at a rate of 1 ° / minute and a solution of 2 parts of trisodium phosphate in 10 parts of water is slowly added dropwise over the overflow over 1 hour.
• the liquor After lingering at 110 ° for 1 hour, the liquor is cooled to 80 ° and drained. The device is then flooded twice with 750 parts of process water from 25 ° from the inside to the outside. The rayon twist wrap is then heated to 100 ° C by hot air. Subsequently, 750 parts of 25 ° warm process water are flooded from the inside out for 30 seconds. This process of hot air treatment with subsequent rinsing is repeated four times.
• a deep navy blue color is obtained with good perspiration and wash fastness.
• the web After dwelling for 25 hours at room temperature, the web is continuously passed through a washing unit and rinsed with process water at 25 °.
• the material is then squeezed and passed through an infrared field and heated in the process. Then the web is again passed through a washing unit and rinsed with process water at 25 °.
• This process of heating by an infrared field with subsequent rinsing is repeated four times.
• the web is dried and steamed at 103 ° for 3 minutes, then it runs through a washing unit consisting of 6 boxes, a line for high-frequency heating being arranged between the 3rd and 4th, the 4th and 5th and the 5th and 6th is.
• the liquor heated to 60 ° is passed through the plant in countercurrent.

Landscapes

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

Applications Claiming Priority (2)

Publications (3)

Family

ID=6157519

Family Applications (1)

Country Status (2)

Citations (5)

• 1982
  • 1982-03-06 DE DE19823208140 patent/DE3208140A1/de not_active Withdrawn
• 1983
  • 1983-02-21 DE DE8383101623T patent/DE3372798D1/de not_active Expired
  • 1983-02-21 EP EP83101623A patent/EP0088273B1/fr not_active Expired

Patent Citations (5)

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