An ink jet textile printing ink containing: water; a coloring material; a polymer X which is a water-soluble polymer with a weight-average molecular weight of 6,000 to 35,000, including at least one selected from the group consisting of a structural unit derived from alkylene glycol, a structural unit derived from vinyl alcohol, and the like; a solvent A which is a water-soluble organic solvent with a molecular weight of 160 or less, in which a ratio of the solvent A in all water-soluble organic solvents contained is 70 mass % or greater, a content of the polymer X is greater than 0.8 mass % and 7.0 mass % or less, and a content mass ratio [solvent A/polymer X] is 7.0 to 50.

The present invention relates to a waterless fiber dyeing method using a mixed fluid medium, in which supercritical carbon dioxide fluid medium is mixed with steam to form a mixed fluid medium, so that the waterless fiber dyeing effect to natural fibers is improved. The method of the invention can effectively modify the hydrophobic supercritical carbon dioxide fluid medium and improve the polarity thereof, thereby increasing the solubility of polar dye under the dyeing condition and simultaneously expanding the fiber. Thus, the present invention significantly improves the dyeability and dyeing behavior of the hydrophilic fibers in supercritical carbon dioxide fluids. The invention has the advantages of simple process, convenient operation and low energy consumption, and avoids consuming a large amount of water resources and discharging pollutants in the traditional process, and has the characteristics of environmentally friendly and high efficiency.

A method is disclosed for producing denim-effect garments by the following steps: 1) printing a reactive dye ink onto a PET film to form a pattern thereby obtaining a transfer printed PET film; 2) transfer printing a base pulp-treated fabric by attaching the transfer printed PET film thereby obtaining a denim-effect fabric; 3) cutting, sewing, washing to soften, and drying the denim-effect fabric and thereby obtaining a denim-effect garment. The method has the advantages of simple production, being environmentally friendly, having high efficiency, and being suitable for flexible fabrics, and the produced denim-effect garment of the invention has the advantages of having a good color fastness to rubbing, washing resistance, and having a diversity of patterns, and are suitable for large-scale production and application.

A method is disclosed for producing denim-effect garments by the following steps: 1) printing a reactive dye ink onto a PET film to form a pattern thereby obtaining a transfer printed PET film; 2) transfer printing a base pulp-treated fabric by attaching the transfer printed PET film thereby obtaining a denim-effect fabric; 3) cutting, sewing, washing to soften, and drying the denim-effect fabric and thereby obtaining a denim-effect garment. The method has the advantages of simple production, being environmentally friendly, having high efficiency, and being suitable for flexible fabrics, and the produced denim-effect garment of the invention has the advantages of having a good color fastness to rubbing, washing resistance, and having a diversity of patterns, and are suitable for large-scale production and application.

Colored lyocell type fibers comprising respun coloured recycled fibers and method of producing the same. According to the method a raw-material of colored recycled textile fibers is provided and dissolved in an ionic liquid to provide a spinning dope. By spinning the dope using dry jet-wet spinning colored respun textile fibers can be manufactured. The invention provides for the simultaneous recycling of cellulose fibers and dyes from dyed cotton waste in the form of dyed lyocell fibers.

Colored lyocell type fibers comprising respun coloured recycled fibers and method of producing the same. According to the method a raw-material of colored recycled textile fibers is provided and dissolved in an ionic liquid to provide a spinning dope. By spinning the dope using dry jet-wet spinning colored respun textile fibers can be manufactured. The invention provides for the simultaneous recycling of cellulose fibers and dyes from dyed cotton waste in the form of dyed lyocell fibers.

The disclosure provides a method for improving the strength and dyeing of wool fibers, and belongs to the technical field of modification of textile materials. By using the feature that protein fiber macromolecules contain a large number of active groups such as hydroxyl groups, amino groups and carboxyl groups, which easily react with polyphenolic pigments formed by a phenolic compound catalyzed by an enzyme to form covalent bonding, the disclosure realizes low temperature dyeing of wool fibers while improving the fiber strength. The disclosure has mild operating conditions easy to control, and in view of increasingly emphasis on environmental protection nowadays, the use of the biological enzyme for dyeing wool fibers is safe, environmentally friendly and efficient, and has a long-term development prospect.

The disclosure provides a method for improving the strength and dyeing of wool fibers, and belongs to the technical field of modification of textile materials. By using the feature that protein fiber macromolecules contain a large number of active groups such as hydroxyl groups, amino groups and carboxyl groups, which easily react with polyphenolic pigments formed by a phenolic compound catalyzed by an enzyme to form covalent bonding, the disclosure realizes low temperature dyeing of wool fibers while improving the fiber strength. The disclosure has mild operating conditions easy to control, and in view of increasingly emphasis on environmental protection nowadays, the use of the biological enzyme for dyeing wool fibers is safe, environmentally friendly and efficient, and has a long-term development prospect.

Provided is an enzymatic treatment on polyester/cellulose blend textile by contacting the textile with a cutinase and preferable with cellulose as well.

Provided is an enzymatic treatment on polyester/cellulose blend textile by contacting the textile with a cutinase and preferable with cellulose as well.