A photocatalytic method of colored discharge printing for producing colorized patterns on textiles includes over dyeing textiles with illuminant dyes and ground shade dyes respectively, manufacturing patterned printing plates with hollow-out decorative patterns, applying a photocatalyst on the over-dyed textiles through the hollow-outs, using a photocatalytic method of colored discharge printing to produce localized discoloration of the ground shade while leaving the illuminant dyes on the textile which produces an effect of colorized patterns on the textiles. The method has the characteristics of being a simple process with a simple apparatus and has short processing, easy control and wide adaptability. The method eliminates the needs for printing pastes and expensive printing apparatus used in the complicated process in a conventional printing method.

Methods for obtaining natural colorants from plant material (e.g., tobacco material) and for using such natural colorants to dye various substrates are provided. Natural colorants are obtained using particular enzymes and particular conditions (e.g., time, temperature, and pH profiles). Such colorants can be used to dye substrates, for example, using conventional dyeing techniques or using unique in situ methods.

A tool allows a user to create new designs for apparel and preview these designs in three dimensions before manufacture. Software and lasers are used in finishing apparel to produce a desired wear pattern or other design. Based on a laser input file with a pattern, a laser will burn the pattern onto apparel. With the tool, the user will be able to create, make changes, and view images of a design, in real time, before burning by a laser. The tool can be accessed or executes via a Web browser.

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.

Kits and methods are provided for color customization of articles by applying ink to regions of decreased pigment density. By creating tension over these regions during application of the ink, the ink may be preferentially transferred to those regions.

A method for localized or diffused decolorization of colored fabrics and garments by applying an accelerating substance comprising quaternary ammonium salts and subsequently treating with ozone.

A dye discharge composition exhibiting extended shelf life and/or pot life and high suitability for inkjet printing on dyed substrates, is disclosed. The composition comprises a reducing agent such as, for example, a sulfur-based reducing agent, and a chelating agent, such as a sodium salt of a polyamino carboxylic acid chelating agent. Use of the dye discharge composition in combination with a translucent colored composition and an optional opaque underbase composition, for forming an image on a dyed substrate is also disclosed. Processes for inkjet printing of an image on a dyed surface using the dye discharge composition, kits for use in such processes or an ink formulation containing same are also disclosed.

A dye discharge composition exhibiting extended shelf life and/or pot life and high suitability for inkjet printing on dyed substrates, is disclosed. The composition comprises a reducing agent such as, for example, a sulfur-based reducing agent, and a chelating agent, such as a sodium salt of a polyamino carboxylic acid chelating agent. Use of the dye discharge composition in combination with a translucent colored composition and an optional opaque underbase composition, for forming an image on a dyed substrate is also disclosed. Processes for inkjet printing of an image on a dyed surface using the dye discharge composition, kits for use in such processes or an ink formulation containing same are also disclosed.

A method for printing a three-dimensional object includes printing a structural layer onto a three-dimensional object, printing a first color layer onto a first region of the structural layer, and printing a second color layer onto a second region of the structural layer. The first region includes a first structural thickness, and the second region includes a second structural thickness, which is different than the first structural thickness. The first color layer includes a first color and a first color thickness, and the first color thickness and the first structural thickness in combination form a target thickness. The second color layer includes a second color and a second color thickness, and the second color thickness and the second structural thickness in combination form the target thickness.

A method for printing a three-dimensional object includes printing a structural layer onto a three-dimensional object, printing a first color layer onto a first region of the structural layer, and printing a second color layer onto a second region of the structural layer. The first region includes a first structural thickness, and the second region includes a second structural thickness, which is different than the first structural thickness. The first color layer includes a first color and a first color thickness, and the first color thickness and the first structural thickness in combination form a target thickness. The second color layer includes a second color and a second color thickness, and the second color thickness and the second structural thickness in combination form the target thickness.