A process for the preparation of coloured and expanded thermoplastic polyurethane (coloured ETPU) material which comprises the following steps: a) providing thermoplastic polyurethane (TPU) material and at least one gaseous fluid wherein the melting temperature of the TPU material is above the supercritical temperature of the at least one gaseous fluid b) placing the TPU material in an autoclave together with a colorant and/or a fluorescent whitening agent (FWA), wherein the colorant is selected from at least one of a disperse dye, an acid dye and a pigment; c) increasing the pressure in the autoclave by introducing the at least one gaseous fluid at a temperature below the melting point of the TPU material and at least above the supercritical temperature of the at least one gaseous fluid at the applied pressure (saturation step); and d) allowing the non-expanded TPU material to saturate; and e) decreasing the pressure in the autoclave down to ambient pressure at a temperature between the melting temperature and the glass transition temperature (Tg) of the TPU material at such a rate that the TPU material expands (expansion step) to obtain coloured ETPU material f) removing the coloured ETPU material from the autoclave

An inkjet textile printing ink includes coloring particles and an aqueous medium. The coloring particles each include a core and a shell layer covering the core. The core contains a polyester resin and a dye. The shell layer contains a specific resin with a non-ring-opened oxazoline group and an amide ester group. The polyester resin preferably includes a non-crystalline polyester resin.

A fluid set for textile printing includes an aqueous inkjet ink containing a pigment stabilized by anionic dispersing groups and an aqueous pre-treatment liquid. The aqueous pre-treatment liquid includes a capsule having a core includinq a thermally reactive crosslinker and a polymeric shell stabilized by cationic dispersing groups.

A polymer composition is provided. The polymer composition includes (i) a core polymer; and (ii) a shell polymer formed over the core polymer. The core polymer includes structural units derived from monomers having a Formula I, Formula II, Formula V (optional), and Formula VI: ##STR00001##
and a structural unit derived from a monomer selected from a group consisting of monomers having a Formula III and Formula IV: ##STR00002##
The shell polymer includes an active ingredient, a polymer comprising structural units derived from a monomer having Formula, I, Formula II, and Formula VI: ##STR00003##
and a structural unit derived from a monomer selected from a group consisting of monomers having a Formula III and Formula IV. ##STR00004##

The present invention relates to a method of dyeing a textile, yarn or strand, in particular for use in footwear or apparel. The method may comprise the steps of: a) exposing at least a part of the textile, yarn or strand to a plasma field and a laser beam; and b) dyeing the textile, yarn or strand by digital dyeing, c) wherein the plasma field and the laser beam are at least partly overlapping to pre-treat the textile, yarn or strand prior to dyeing, and d) wherein the method is performed inside at least one of chamber(s). The present invention also relates to a textile, yarn or strand dyed according to the method of dyeing as well as to a system adapted for dyeing a textile, yarn or strand.

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.

The invention provides a disperse dye color paste for waterless dyeing, which comprises, by weight, 10%-40% of disperse dye filter cakes, 2%-35% of a dispersant, 5%-20% of a dyeing auxiliary, 0.1-0.5% of a surfactant, and 20%-88% of a solvent. The disperse dye color paste for waterless dyeing of the invention has a small particle size; and after waterless dyeing, a textile does not contain cleavable carcinogenic aromatic amine azo dyes, allergenic dyes, forbidden aromatic amine or bioactive substances. The disperse dye color paste for waterless dyeing of the invention can be stably stored for 6-12 months which is beneficial to the transportation of dyes and the production management of dyeing factories. Moreover, a dyeing effect featuring a high fixation rate is realized after the disperse dye color paste for waterless dyeing is applied to textiles.

A method for applying a treatment agent to a substrate, wherein the treatment agent is bound to a solid polymeric particle at a first pH, and wherein the substrate is contacted with the solid polymeric treatment particles under conditions such that the treatment agent is released from the solid polymeric treatment particles.

The invention relates to an improved method and apparatus for the treatment of animal skin substrates which employs a multiplicity of solid particles. There is disclosed an apparatus for treating one or more animal skin substrates with a multiplicity of solid particles and treatment liquor comprising: a rotatably mounted drum comprising an internal volume having a first portion defining a treatment volume for retaining said animal substrates and a second portion defining a collecting volume; one or more inlets for introducing solid particles and treatment liquor into said treatment volume; a partition separating said treatment volume from said collecting volume wherein said partition allows free passage of solid particles from the treatment volume to the collecting volume and prevents the passage of the substrates therethrough; a circulation path for conveying said solid particles from the collecting volume to the treatment volume; and a pumping device arranged to pump solid particles and said treatment liquor along a portion of said circulation path.

A whitening composition for fabric, in particular, unbleached cellulosic fiber-containing fabric. 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.