Abstract

The present invention generally relates to a method for changing the color of a textile material to obtain a vintage and/or worn appearance comprising the steps of contacting the fabric textile material with a nitrate salt, activating the nitrate salt by the addition of an acid catalyst until the desired color change is achieved.

IPC Classes  ?

• D06L 4/22 - Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goodsBleaching leather or furs using agents which contain halogen using inorganic agents
• D06L 4/00 - Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goodsBleaching leather or furs
• D06P 1/46 - General processes of dyeing or printing textiles or general processes of dyeing leather, furs or solid macromolecular substances in any form, classified according to the dyes, pigments or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing natural macromolecular substances or derivatives thereof
• D06P 5/15 - Locally discharging the dyes
• D06P 1/653 - Nitrogen-free carboxylic acids or their salts
• D06P 1/673 - Inorganic compounds
• D06P 5/13 - Fugitive dyeing or stripping dyes
• D06B 11/00 - Treatment of selected parts of textile materials, e.g. partial dyeing

Abstract

The invention relates to a method for achieving an unexpected and reproducible local bleaching effect on denim fabric by applying ozone (O3) on a dyed fabric which has been pretreated by at least one hygroscopic substance.

IPC Classes  ?

• D06P 5/15 - Locally discharging the dyes

Abstract

The present invention generally relates to a method for changing the color of a textile material to obtain a vintage and/or worn appearance comprising the steps of contacting said fabric textile material with a nitrate salt, activating the nitrate salt by the addition of an acid catalyst until the desired color change is achieved.

IPC Classes  ?

• D06P 5/13 - Fugitive dyeing or stripping dyes
• D06P 5/15 - Locally discharging the dyes

Abstract

The present invention generally relates to a method for increasing the color of a dyed textile material comprising the steps of: a) pretreating the textile material with at least one nitrate salt and an acid catalyst, b) drying the pretreated fabric in a dryer at temperatures less than 60 °C, c) applying a leaser beam to the fabric to promote the chemical reaction to generate NOx compounds which attach the dye, and d) creating a color value change.

IPC Classes  ?

• D06P 5/13 - Fugitive dyeing or stripping dyes
• D06P 5/15 - Locally discharging the dyes
• D06M 10/00 - Physical treatment of fibres, threads, yarns, fabrics or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents or magnetic fieldsPhysical treatment combined with treatment with chemical compounds or elements
• D06M 11/58 - Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereofSuch treatment combined with mechanical treatment, e.g. mercerising with nitrogen or compounds thereof, e.g. with nitrides