Influence of Inorganic Pigments on the Properties of Acrylic Coatings for Finishing Fur Sheepskin
This study is devoted to studying the influence of inorganic pigments brown - pigment red iron oxide 110, yellow - crown yellow medium, blue - ultramarine 463, black - carbon technical P-803 on the properties of coatings based on a copolymer emulsion of butyl acrylate, methyl methacrylate and acrylic acid. When using black pigment brown paint is practically not washed out of coatings. When using yellow medium crown and ultramarine 463, the leach ability of dyes is 6-8 parts by weight. The weak relationship of these pigments with a polymer binder is confirmed by the results of determining the color fastness to wet friction. Best received on acrylic coatings with carbon technical black P-803 pigments and brown iron oxide 110 at concentrations from 5 to 10 parts by weight. The marking of the coatings on the crown is yellow middle and ultramarine 463 with a ratio of 7-10 weight parts. is 2-3 points. The use of casein pigment concentrates based on carbon technical P-803 and brown on red iron oxide 110 pigment with a ratio of 9-10 parts by weight from the mass fraction of the polymer provides high performance properties of the leather fabric of the semi-finished fur product. These pigments are recommended for inclusion in the composition when performing the technology of coating dyeing of leather and leather fabric of fur sheepskins.
Keywords: Coatings, Acrylic coatings, Leather, Concentration, Composition, Pigment, Degree of swelling, Crown yellow medium, Ultramarine 463, Gasoline A-93.