Dyed and/or printed non-woven fabric
OwnerHeike Bartl, Uwe Marginventors
Life of this patent
Estimating the term…
Abstract
The invention relates to a dyed and/or printed non-woven fabric consisting of non-split and/or at least partially split microfibres and/or microfilaments consisting of synthetic polymers containing at least one polyester constituent and at least one polyamide constituent and, optionally, at least one polyurethane constituent, said fabric having been dyed and/or printed by means of at least one azo dye which is produced on the non-woven fabric. The invention also relates to a method for dyeing and/or printing the inventive fabric.
Claims46
1-39. (canceled)
A dyed and/or printed nonwoven, comprising:
- at least one of microfibers and microfilaments of synthetic polymers, the synthetic polymers including at least one polyester component and at least one polyamide component;
- and
- at least one azo dye disposed on the nonwoven.
A method for dyeing and/or printing a nonwoven with at least one azo dye, the nonwoven including at least one of microfibers and microfilaments of synthetic polymers, the synthetic polymers including at least one polyester component and at least one polyamide component, the method comprising:
- treating the nonwoven with at least one dyestuff developer component at a treatment temperature of ≧90° C. and at least one of a fast color salt and a fast color base;
- where the treating includes treating the nonwoven with a fast color base, diazotizing the diestuff developer component with the fast color base;
- and
- coupling the dyestuff developer component and the fast color salt and/or the fast color base on the nonwoven.
Dependencies are inferred from the claim text.