Protein fiber having crimp property such that the protein fiber crimps in response to a stimulus is immersed in a solution of protein having a different composition from the protein. The protein having a different composition is infiltrated into the protein fiber and the protein fiber is made crimped.

A whitening composition for fabric, in particular, unbleached cellulosic fiber-containing fabric is described. The composition includes a blue dye, a violet dye; and, optionally, a thickening agent; wherein the composition is free of bleaching agents and optical brighteners. A method of whitening a fabric using whitening compositions is also disclosed.

A whitening composition for fabric, in particular, unbleached cellulosic fiber-containing fabric is described. The composition includes a blue dye, a violet dye; and, optionally, a thickening agent; wherein the composition is free of bleaching agents and optical brighteners. A method of whitening a fabric using whitening compositions is also disclosed.

A composite support includes a first layer or sheet made from a printable or dyed material, a second layer or flexible polymer layer, and a third layer made from a hydrophilic and film-forming polymer. A method of using the support, in particular in digital printing or in dyeing with sublimation dyes, is also disclosed.

A transfer dyeing method, includes: 1) coating a pretreating liquid on a front side of a fabric by a first pretreating anilox roller; 2) printing a dyeing ink on a first ink transfer roller or ink transfer ribbon by a first full-master printing plate roller; 3) transferring the dyeing ink to the front of the fabric; 4) drying the fabric and then making a back side of the fabric face to a second pretreating anilox roller; 5) coating the pretreating liquid on the back side of the fabric; 6) printing a dyeing ink that is same as or different from the dyeing ink of step 2) on a second transfer-roller or ink transfer ribbon; 7) transferring the dyeing ink to the back side of the fabric; and 8) drying the fabric, followed by color fixing, water washing and shaping.

A transfer dyeing method, includes: 1) coating a pretreating liquid on a front side of a fabric by a first pretreating anilox roller; 2) printing a dyeing ink on a first ink transfer roller or ink transfer ribbon by a first full-master printing plate roller; 3) transferring the dyeing ink to the front of the fabric; 4) drying the fabric and then making a back side of the fabric face to a second pretreating anilox roller; 5) coating the pretreating liquid on the back side of the fabric; 6) printing a dyeing ink that is same as or different from the dyeing ink of step 2) on a second transfer-roller or ink transfer ribbon; 7) transferring the dyeing ink to the back side of the fabric; and 8) drying the fabric, followed by color fixing, water washing and shaping.

The invention concerns a method for decoloring of a textile material, the method comprising the steps of: providing a textile material; providing an alkaline solution containing one or more anionic polyelectrolytes; treating the textile material in the alkaline solution during a treatment period; and recovering at least some of the textile material from the alkaline solution.

The present invention relates to a process for the production of a dyed biopolymer comprising the steps of providing at least one biopolymer-producing microorganism, providing at least one dye-producing microorganism, culturing said at least one biopolymer-producing microorganism to produce at least a biopolymer, and culturing said dye-producing microorganism wherein said dye-producing microorganism produce at least a dye suitable to dye at least part of said biopolymer, whereby a dyed biopolymer is obtained. The present invention also relates to a dyed biopolymer, to process for the production of a dyed composite article comprising at least the dyed biopolymer and to articles comprising the dyed biopolymer.

An ink jet textile printing penetrant includes a water-soluble organic solvent; a surfactant; and one type or two or more types selected from the group consisting of a chelating agent and an aromatic compound.

An ink jet textile printing penetrant includes a water-soluble organic solvent; a surfactant; and one type or two or more types selected from the group consisting of a chelating agent and an aromatic compound.