AQUEOUS COATINGS

The invention relates to an aqueous pigmented coating composition containing at least one polymer P1 in the form of an aqueous polymer dispersion， and at least one water-soluble polymer P2 that is composed of ethylenically unsaturated monomers M and contains at least 30% by weight of polymerized N-vinylpyrrolidone in relation to the total amount of monomers M. The invention further relates to the use of the aqueous pigmented coating compositions of the invention for coating tannin-containing substrates， a coating method， and the coated substrates. The invention relates to an aqueous pigmented coating composition containing at least one polymer P1 in the form of an aqueous polymer dispersion， and at least one water-soluble polymer P2 that is composed of ethylenically unsaturated monomers M and contains at least 30% by weight of polymerized N-vinylpyrrolidone in relation to the total amount of monomers M. The invention further relates to the use of the aqueous pigmented coating compositions of the invention for coating tannin-containing substrates， a coating method， and the coated substrates.

本发明涉及一种水性着色涂料组合物，其包含至少一种呈水性聚合物分散体（aqueous polymer dispersion）形式的聚合物P1，以及至少一种由烯属不饱和单体M聚合得到的水溶性聚合物P2，且相对于单体M的总质量，该聚合物P2含有至少30重量%的聚合态N-乙烯基吡咯烷酮（N-vinylpyrrolidone）。本发明还涉及本发明的水性着色涂料组合物在涂覆含单宁基材（tannin-containing substrates）中的用途、一种涂覆方法以及经涂覆的基材。本发明涉及一种水性着色涂料组合物，其包含至少一种呈水性聚合物分散体（aqueous polymer dispersion）形式的聚合物P1，以及至少一种由烯属不饱和单体M聚合得到的水溶性聚合物P2，且相对于单体M的总质量，该聚合物P2含有至少30重量%的聚合态N-乙烯基吡咯烷酮（N-vinylpyrrolidone）。本发明还涉及本发明的水性着色涂料组合物在涂覆含单宁基材（tannin-containing substrates）中的用途、一种涂覆方法以及经涂覆的基材。