METHOD FOR DECORATING SUBSTRATES AND DECORATED SUBSTRATE
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Accused Products
Abstract
A method for decorating substrates, in particular packaging, comprising the steps: printing at least one first decorative pattern (2) on the substrate using a first radiation-curable, preferably UV-curable, printing ink composition (3); printing at least one second decorative pattern (4), using a second radiation-curable, preferably UV-curable, printing ink composition (5), on at least part of the substrate (1) in a region near to the first pattern (2), chronologically before, after, or during the printing of the first pattern; radiation curing of the first and second printing ink compositions (3, 5), preferably directly after the printing of each pattern, the radiation-cured second printing ink composition having a lower glass transition temperature than the radiation-cured first printing ink composition; application of a decorative coating to the second pattern by means of a hot foil stamping process, a hot stamping foil comprising a decorative coating material being pressed against the printed substrate by means of a stamping tool under the application of heat and pressure such that the decorative coating adheres to the second pattern but not to the first pattern.
9 Citations
35 Claims
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1-15. -15. (canceled)
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16. A method for decorating substrates, comprising the following steps:
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printing at least one first decorative pattern (2) with a first printing ink composition (3) onto the substrate (1), the substrate being a glass vessel, printing at least one second decorative pattern (4) with a second printing ink composition (5) onto the substrate (1), at least sectionally in a region adjacent to the first pattern (2), temporarily before, after, or during the printing of the first pattern, wherein the radiation-cured second printing ink composition (5) has a lower glass transition temperature than the radiation-cured first printing ink composition (3), and wherein a hot stamping method (10) is used to apply a decorative coating to the second pattern (4), for which purpose hot stamping foil comprising a decorative coating material is pressed with exposure to heat and pressure, by means of a stamping tool (12) against the printed substrate (1), at least sectionally in the region of the first and second patterns (4), so that the decorative coating adheres to the second pattern (4), but not to the first pattern (2), wherein the first and the second printing ink compositions (3, 5) are radiation-curable and wherein the first and second printing ink compositions (3, 5) are radiation-cured, and wherein the second printing ink composition (5) comprises a base composition having at least one radical photoinitiator and no cationic photoinitiator, and wherein the base composition comprises at least one epoxy resin based on bisphenol A, which is in solution in a UV-curing monomer, and also a resin having functional groups which free functional hydroxy, epoxide, acid, acid anhydride and/or acrylate groups, and further a wax, and wherein on irradiation of the second printing ink composition (5), the epoxy resin based on bisphenol A is not crosslinked with the UV-curable monomer, but is instead merely physically embedded, and wherein a weight fraction of a heat-activatable pressure-sensitive adhesive in the second printing ink composition (5) is between 10% and 25%. - View Dependent Claims (17, 19, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
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18. A method for decorating substrates comprising the following steps:
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printing at least one first decorative pattern (2) with a first printing ink composition (3) onto the substrate (1), the substrate being a plastic, printing at least one second decorative pattern (4) with a second printing ink composition (5) onto the substrate (1), at least sectionally in a region adjacent to the first pattern (2), temporarily before, after, or during the printing of the first pattern, wherein the radiation-cured second printing ink composition (5) has a lower glass transition temperature than the radiation-cured first printing ink composition (3), and wherein a hot stamping method (10) is used to apply a decorative coating to the second pattern (4), for which purpose hot stamping foil comprising a decorative coating material is pressed with exposure to heat and pressure, by means of a stamping tool (12) against the printed substrate (1), at least sectionally in the region of the first and second patterns (4), so that the decorative coating adheres to the second pattern (4), but not to the first pattern (2), wherein the first printing ink composition (3), formed as a plastic color or plastic lacquer, and the second printing ink composition (5), formed as a plastic color or plastic lacquer, are radiation-curable and wherein the first and second printing ink compositions (3, 5) are radiation-cured, and wherein a weight fraction of a heat-activatable pressure-sensitive adhesive in the second printing ink composition (5) is between 10% and 25%.
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20. A method for decorating substrates, comprising the following steps:
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printing at least one first decorative pattern (2) with a first printing ink composition (3) onto the substrate (1), the substrate being paper or cardboard, printing at least one second decorative pattern (4) with a second printing ink composition (5) onto the substrate (1), at least sectionally in a region adjacent to the first pattern (2), temporarily before, after, or during the printing of the first pattern, wherein the radiation-cured second printing ink composition (5) has a lower glass transition temperature than the radiation-cured first printing ink composition (3), and wherein a hot stamping method (10) is used to apply a decorative coating to the second pattern (4), for which purpose hot stamping foil comprising a decorative coating material is pressed with exposure to heat and pressure, by means of a stamping tool (12) against the printed substrate (1), at least sectionally in the region of the first and second patterns (4), so that the decorative coating adheres to the second pattern (4), but not to the first pattern (2), wherein the first printing ink composition (3), formed as a paper or cardboard printing ink or as a paper or cardboard print varnish, and the second printing ink composition (5), formed as a paper or cardboard printing ink or as a paper or cardboard print varnish, are radiation-curable and wherein the first and second printing ink compositions (3, 5), are radiation-cured, and wherein a weight fraction of a heat-activatable pressure-sensitive adhesive in the second printing ink composition (5) is between 10% and 25%. - View Dependent Claims (21)
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Specification