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US 2021/0148041 A1Published application
Treatment of textile material
AssigneeActicell GmbH
InventorsChristian Bruno Schimper, Paul Pachschwöll, Hubert Hettegger
Life of this patent
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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.
Claims15
A method for changing the color of a dyed textile material to obtain a vintage and/or worn appearance comprising the steps of:
- (a) contacting said textile material with at least one nitrate salt selected from the group consisting of KNO3, Ca(NO3)2, NaNO3, Mg(NO3)2, and Al(NO3)3,
- (b) activating said nitrate salt by the addition of an acid catalyst, selected from the group consisting of sulfates, phosphates, sulfonic acids, carboxylic acids and mineral acids, and
- (c) maintaining step (b) until a desired color change is achieved,
- wherein steps (a)-(c) are conducted at a temperature below 90° C.
1 more element
Dependencies are inferred from the claim text.