Abstract: A polymer is obtainable by a method comprising the reaction of: a) at least one rosin acid containing at least two conjugated carbon-carbon double bonds, b) at least one polydienophile compound comprising two or more carbon-carbon double bonds, c) at least one compound selected from the group consisting of polyhydroxyl compounds c1), polyepoxy compounds c2), polyamine compounds c3), polythiol compounds c4) and arbitrary combinations of two or more of the aforementioned compounds and d) at least one photoinitiator d1) and/or at least one co-initiator d2), wherein the at least one photoinitiator d1) and/or the at least one co-initiator d2) comprises at least one functional group being selected from the group of ester groups, carboxylic acid groups, carboxylic acid chloride groups, carboxylic acid anhydride groups, hydroxyl groups, thiol groups, primary amine groups, halogen groups, epoxy groups, isocyanate groups, isothiocyanate groups and arbitrary combinations of two or more of the aforementioned groups.

Abstract: A polymer is obtainable by a method comprising the following steps: a) reacting a-i) at least one compound being selected from the group consisting of polyhydroxy-functionalized compounds, polyepoxy-functionalized compounds, polythiol-functionalized compounds, compounds comprising at least one group being selected from hydroxy groups, epoxy groups and thiol groups and at least a different group being selected from hydroxy groups, epoxy groups and thiol groups and arbitrary combinations of two or more thereof with a2) at least one ?,B-unsaturated carboxylic acid comprising two or more carboxylic groups and/or at least one anhydride thereof so as to obtain a first reaction product, b) reacting b1) the first reaction product with b2) at least one rosin acid containing at least two conjugated double bonds so as to obtain a second reaction product, c) reacting C1) the second reaction product with C2) at least one amine compound comprising two or more primary and/or secondary amine groups so as to obtain a third re

Abstract: The invention relates to a system and a method for ascertaining a color recipe which produces a color product with a specified hue after an application onto a specified substrate using a specified application method. The method has the steps of: a) providing a database with a plurality of data sets, b) specifying a target application method, a target substrate, and a desired target hue by means of a user, c) searching the database using a computer program, and d) when at least one suitable database has been found in step c), displaying the information stored in the at least one data set, said information relating to the color recipe, wherein at least one of the data sets also comprises information on at least one reference hue, a reference application method, and a reference substrate.

Abstract: The invention relates to a system and a method for ascertaining a color recipe which produces a color product with a specified hue after an application onto a specified substrate using a specified application method. The method has the steps of: a) providing a database with a plurality of data sets, b) specifying a target application method, a target substrate, and a desired target hue by means of a user, c) searching the database using a computer program, and d) when at least one suitable database has been found in step c), displaying the information stored in the at least one data set, said information relating to the color recipe, wherein at least one of the data sets also comprises information on at least one reference hue, a reference application method, and a reference substrate.

Abstract: The present invention relates to a printing ink composition or varnish composition containing a binder component and a solvent component, wherein the solvent component comprises at least one oxymethylene ether and preferably at least one oxymethylene ether according to the general formula (I) CH3[OCH2]nOCH3, wherein n is an integer of 2 to 7.

Abstract: The invention relates to a system and a method for ascertaining a color recipe, having the steps of: a) providing a database with a plurality of data sets, b) specifying a target application method, a target substrate, and a desired target hue by means of a user, c) searching the database using a computer program, and d) displaying stored information relating to the color recipe of at least one data set if found.

Abstract: The present invention relates to a method for determining the composition of a multi-layer system showing a predetermined colour flip-flop effect, wherein the multi-layer system comprises from bottom to top a) a substrate, b) at least one first colour layer containing a colourant, which is arranged on the substrate a), c) on the at least one first colour layer an effect layer containing at least one platelet-shaped effect pigment, and d) on the effect layer c) at least one second colour layer containing a colourant, wherein each of the at least one first colour layer and of the at least one second colour layer contains a colourant being no platelet-shaped effect pigment, wherein the method comprises the following steps: i) specifying a first target value for the colour shade and/or colour brightness of the top side of the multi-layer system seen at a first observation angle, ii) specifying a second target value for the colour shade and/or colour brightness of the top side of the multi-layer system seen at a s

Abstract: The present invention relates to a method for controlling the curing degree of at least one at least partially cured ink and/or varnish printed on a substrate, which comprises cutting at least one sample from an area of the printed substrate, placing and incubating it in a solvent, in which at least one of the at least one extractable compound is soluble, and removing it from the solvent to obtain a solvent extract; quantitatively measuring a spectroscopic characteristic of the solvent extract; comparing the measured numeric value of the spectroscopic characteristic with a reference value of the spectroscopic characteristic for the same area of the printed substrate; and outputting a result, wherein the reference value of the spectroscopic characteristic for the same area of the printed substrate has been obtained by the use of an empirical model.

Abstract: The present invention relates to an aqueous hard resin solution for the use in a water-based overprint varnish, wherein the aqueous hard resin solution contains water, at least one hard resin and at least one amine compound, wherein at least one of the at least one amine compound has one amino group, at least two hydroxyl groups and at least one Cn-including group, with n being an integer of 3 or more.

Abstract: The present invention relates to a method for determining the migration potential of an at least partially cured energy curing ink and/or varnish printed on a substrate comprising: —providing a substrate, which is printed with the ink and/or varnish, which comprises at least one extractable compound, which absorbs or emits radiation at at least one wavelength between 190 and 3,000 nm, —cutting at least one sample from the printed substrate, placing and incubating the sample in a solvent, in which the extractable compound is soluble, and removing the sample from the solvent to obtain a solvent extract, —quantitatively measuring a spectroscopic characteristic of the solvent extract at at least one wavelength between 190 and 3,000 nm, at which the extractable compound absorbs or emits radiation, so as to obtain a measured numeric value of the spectroscopic characteristic, and —comparing the measured numeric value of the spectroscopic characteristic with a calibration curve.

Abstract: The present invention relates to a method for controlling the curing degree of at least one at least partially cured ink and/or varnish printed on a substrate, which comprises the following steps: a) providing a substrate, which is printed with the at least one at least partially cured ink and/or at least partially cured varnish, wherein the at least one at least partially cured ink and/or at least partially cured varnish comprises at least one extractable compound, b) cutting at least one sample from an area of the printed substrate provided in step a), placing the at least one sample in a solvent, in which at least one of the at least one extractable compound is soluble, incubating the solvent with the at least one sample placed therein for at least 10 seconds and removing the at least one sample from the solvent to obtain a solvent extract, c) quantitatively measuring a spectroscopic characteristic of the solvent extract at at least one wavelength between 190 and 4,000 nm, at which at least one of the a