15-02-2018 дата публикации
Номер: US20180043723A1
Принадлежит:
A method for producing a multilayer body, with the steps: 1. A method for producing a multilayer body , comprising with the steps:a) providing a first printed layer;b) partially applying a second printed layer to the first printed layer; andc) structuring the first printed layer using the second printed layer as a mask.2. The method according to claim 1 , wherein claim 1 , to provide the first printed layer claim 1 , a first varnish is used which reacts chemically claim 1 , in particular in a crosslinking reaction claim 1 , with a second varnish used for the application of the second printed layer.3. The method according to claim 2 , wherein the first varnish is a water-based or solvent-based alkali-soluble varnish.4. The method according to claim 2 , wherein the first varnish comprises dyes claim 2 , colored or achromatic pigments and/or effect pigments claim 2 , UV-excitable fluorescent pigments claim 2 , thin-film systems claim 2 , cholesteric liquid crystals claim 2 , dyestuffs and/or metallic or non-metallic nanoparticles.5. The method according to claim 2 , wherein the second varnish is a PVC mixed polymer of vinyl chloride claim 2 , vinyl acetate and dicarboxylic acid.6. The method according to claim 2 , wherein the second varnish is a polyester varnish with cellulose propionate.7. The method according to claim 2 , wherein the second varnish comprises polyisocyanate and/or polyaziridine.8. The method according to claim 1 , wherein the first printed layer is structured by the action of an alkali hydroxide or alkali carbonate.9. The method according to claim 8 , wherein the alkaline etchant is used in a concentration of from 0.5% to 3% claim 8 , and/or at a temperature of from 20° C. to 50° C. claim 8 , and/or for a period of from 0.5 s to 5 s.10. The method according to claim 1 , wherein the first printed layer is applied multicolored claim 1 , in the form of a color progression claim 1 , color gradient or true-color image.11. The method according to claim 1 , ...
Подробнее