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
  • D06P1/16—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 dispersed, e.g. acetate, dyestuffs
• • 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
  • D06P3/34—Material containing ester groups
  • D06P3/52—Polyesters
  • D06P3/54—Polyesters using dispersed dyestuffs

Definitions

• the present invention relates to a disperse dye composition and a method of dyeing fibers using the same, and more particularly, to a composition and a method of disperse dyes having excellent fastnesses such as daylight, water, and sublimation in dyeing polyester fibers.
• Synthetic fibers such as acetate and polyester have a very high hydrophobicity as compared with conventional cellulose and protein fibers, making it very difficult to be dyed with conventional hydrophilic dyes.
• the dyeing of such hydrophobic fibers does not contain water-soluble groups, and has been used as a disperse dye which is dispersed in water as a dye insoluble in water.
• the disperse dyes cannot sufficiently realize excellent dyeing rate and high daylight fastness in view of their properties, and furthermore, the affinity of polyester to blended fibers and the like is not clear.
• the inventors after extensive research and various experiments, described a method of dyeing a blended fiber material including polyester using a disperse dye composition containing a combination of specific compounds as described below. It has been developed, and in this case, it has been found that excellent dyeing rate and fastness can be obtained, and the present invention has been completed.
• the problem to be solved by the present invention is to provide a disperse dye composition having excellent fastness by mixing disperse dyes in an appropriate ratio.
• Another problem to be solved by the present invention is to provide a method for dyeing a blend fiber material containing a polyester or the like using the disperse dye composition, in this case, it is possible to obtain excellent fastness compared to the conventional dye have.
• the present invention provides a dispersion dye composition comprising 1 to 99 parts by weight of the compound of Formula 1 and 1 to 99 parts by weight of the compound of Formula 2 to achieve the above object.
• R 1 is a hydrogen atom or (C1-C18) alkyl
• R 2 is (C1-C18) alkyl or-(CH 2 ) n -CO 2 R a )
• n is an integer of 1 to 8
• R a is (C1-C18) alkyl or (C1-C8) alkoxy (C1-C8) alkyl.
• the disperse dye composition of the red series prepared with the compound of Formula 1 had a problem that it is difficult to express a dark color due to the dyeing concentration, the disperse fastness of the red series disperse dye prepared with the compound of Formula 2 was poor.
• the dispersion dye composition according to the present invention can obtain a high dyeing concentration and excellent daylight fastness and sublimation fastness, water fastness grade of the level to be obtained through the combination of the compounds of formula 1 and 2 in a specific content.
• R 1 is (C1-C8) alkyl
• R 2 is (C1-C8) alkyl
• n is an integer of 1 to 3
• R a is (C1 ⁇ C8) alkyl or (C1-C4) alkoxy (C1-C4) alkyl.
• the disperse dye composition may include 20 to 80 parts by weight of the compound of Formula 1 and 80 to 20 parts by weight of the compound of Formula 2.
• composition of this invention can be added to the composition of this invention within the range which does not impair the objective and effect of this invention.
• Such other additives may be added in the range of approximately 1 to 20 weight percent based on the total weight of the composition.
• the solubilizer is an additive component that prevents agglomeration of dyes and helps dissolution, and typical examples thereof include urea, thiourea, and caprolactam.
• the buffer is a component that buffers the pH to prevent degradation of the dye during storage and storage, and representative examples thereof include sodium phosphate, potassium phosphate, sodium acetate and the like.
• the freezing inhibitor lowers the freezing point during liquid freezing and serves as a component that does not freeze the liquid dye. Representative examples include ethylene glycol, polyethylene glycol, and polyalcohol compounds.
• the present invention also provides a method for dyeing a fiber material using the dispersion dye composition.
• fibrous material examples include semisynthetic fibers, synthetic fibers, regenerated fibers, or blended fibers of synthetic fibers and natural fibers.
• semisynthetic fibers include, for example, acetate, synthetic fibers such as polyester, polyamide, poly Vinyl, polyurethane-based fibers, recycled fibers include cellulose and the like.
• the disperse dye composition is also applied to the dyeing of blended fibers of polyester fibers, for example blended fibers comprising polyester and cellulose fibers, and exhibits high dyeing rates and good fastnesses.
• a method for dyeing a semi-synthetic fiber, synthetic fibers, regenerated fibers, or blended fibers of synthetic fibers and natural fibers using the dispersion dye composition is provided.
• the dispersion dye composition using the dispersion dye composition, there is provided a method for dyeing polyester fiber or polyester composite fiber.
• the blend fiber may include polyester fibers and cellulose fibers.
• the disperse dye composition according to the present invention can be used in various methods, for example, cold pad placement method, continuous dyeing method, dyeing method, printing method, printing method, and preferably used in continuous dyeing method and dyeing method.
• an acid-binding agent for example, sodium carbonate, sodium bicarbonate, etc.
• a padding liquid padded by a known method and dyed by dry heat or steaming
• inorganic Neutral salts e.g., anhydrous sodium sulfate, salt, etc.
• acid binders e.g., caustic soda, sodium silicate, etc.
• the dyeings and printings obtained according to the present invention are excellent in build-up and leveling. In addition, it is excellent in coloration, high fiber-dye bonding stability, and excellent in light fastness as well as prevention of contamination to other fibers.
• the disperse dye composition according to the present invention includes a combination of specific compounds, it exhibits excellent dyeing rate when dyeing blended fiber materials including polyester and the like, and has excellent fastness such as sunlight, water, and sublimation.
• the pH is adjusted after milling to a particle size of 1 ⁇ m or less 90% or more. Thereafter, spray dry drying to obtain a dispersion dye composition comprising a compound of formula (1).
• Disperse dye composition comprising the composition of Preparation Example 2 was prepared as shown in Table 1.
• Disperse dye compositions comprising the composition of Preparation Example 1, and the composition selected from the compositions of Preparation Examples 2 to 4 were prepared as shown in Table 1.
• Daylight fastness was carried out by AATCC 16E method, water fastness was progressed by ISO-105-E01, and sublimation fastness by ISO-105-P01.

Landscapes

• Chemical & Material Sciences (AREA)
• Dispersion Chemistry (AREA)
• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Coloring (AREA)

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Publications (1)

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Citations (5)

Family Cites Families (2)

• 2018
  • 2018-02-08 KR KR1020180015697A patent/KR20190096126A/ko not_active Application Discontinuation
• 2019
  • 2019-01-16 WO PCT/KR2019/000643 patent/WO2019156378A1/ko active Application Filing
  • 2019-01-16 CN CN201980006938.5A patent/CN111511981A/zh active Pending

Patent Citations (5)

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