A method is provided for dyeing a molded part produced in a 3D printing process with a polymer. The method includes a dyeing step for dyeing the surface of the molded part with a dye, and a first post-treatment step for fixing the dye which has penetrated the surface of the molded part. Optionally, a second post-treatment step can be carried out in order to achieve even better fixing of the dye which has penetrated the surface of the molded part.

A method is presented for direct digital printing on a textile substrate utilizing a two-step pretreatment comprising a plasma pretreatment and a heat pretreatment step followed by inkjet printing on the textile and a final heat treatment step.

A method for live area printing for textiles includes bulk production of textile blanks having uncolored live areas incorporated thereupon. The live areas are disposed at exact positions upon the blank to correspond to a specific location upon each textile article manufactured from the blank. Manufactured textile articles are thence customizable by printing directly to the live area(s) upon demand. Color is matched using methods based on CIELAB to ensure a seamless transition between the textile article color and the background color applied to the live area.

Laser finishing of apparel products allows an operating model that reduces finishing cost, lowers carrying costs, increases productivity, shortens time to market, be more reactive to trends, reduce product constraints, reduces lost sales and dilution, and more. Improved aspects include design, development, planning, merchandising, selling, making, and delivering. The model uses fabric templates, each of which can be used to produce a multitude of laser finishes. Operational efficiency is improved.

A system for treating a substrate comprising a treatment module and a substrate plane. The substrate extending along a substrate plane to treat the substrate and wherein a fluid is deliverable via the module to a local region between the module and the substrate plane to treat the substrate with a predetermined treatment.

A printable fabric medium can include a fabric substrate and a polymeric particle blend including polysiloxane particles and polyolefin release particles pre-treated on the fabric substrate. A weight ratio of the polysiloxane particles to polyolefin release particles can be from 1:5 to 4:1, for example.

A fabric has enhanced response characteristics for laser finishing. The fabric can be denim for denim apparel such as jeans. Software and lasers are used to finish apparel made of the fabric to produce a desired wear or distressing pattern or other design. The fabric allows for relatively fast color change in response to the laser, color changes in hue from indigo blue to white, many grayscale levels, and maintains strength and stretch properties. A method used to make the fabric includes spinning, dyeing, and weaving yarns in such a way to obtain the desired enhanced response characteristics for laser finishing.

This invention relates to a fabric consisting of at least a first yarn containing cellulosic fibers modified by a cationic modifier and a second yarn containing cellulosic fibers not modified by a cationic modifier, and to the use of this fabric in order to obtain a denim appearance.

The present invention provides a method for providing a printed article, comprising printing an aqueous ink composition onto a fibrous substrate and curing the ink, wherein the ink composition comprises a polyurethane dispersion having the properties of (a) ketone or aldehyde groups present at one or more polymer chain ends; (b) a number average molecular weight ≤50,000 and; (c) the content of ketone and aldehyde groups is in the range 0.02 to 4.0 mmol g-1, based on the dry polymer weight. The present invention also provides use of said ink composition for printing onto a fibrous substrate.

The present invention relates to yarn dyeing, such as denim dyeing. A process provides a dyed yarn having reduced dye penetration and a white core at lower cost. The improved process for yarn dyeing is referred to herein as the CleanKore technology. The CleanKore technology improves one or more steps in dye ranges to achieve dyeing of the yarn while retaining a white core at the center of the yarn. When viewing a cross-section of a yarn, the peripheral portion is dyed while the center remains white (not dyed). The CleanKore technology modifies the scouring stage (or phase), the scour rinsing stage, the dyeing stage, and/or the dye rinsing phase of existing dye ranges. The modifications may be applied individually or any combinations thereof to the existing dye range.