COLOURED CHRYSOTILE CEMENT SHEET AND METHOD FOR PRODUCTION THEREOF Russian patent published in 2019 - IPC E04C2/04 

FIELD: construction.

SUBSTANCE: group of inventions can be used as decorative roofing and facade material in construction of houses. Method for producing a coloured chrysotile cement sheet from a press-formed and compacted on a sheet-forming machine from chrysotile cement layers, consists in the fact that on the first layer forming the face side of the obtained chrysotile cement sheet, in process of this layer movement on the upper part of technical sheet of sheet forming machine there applied is water dispersion of pigment with concentration of pigment in composition of water dispersion sufficient for obtaining of required degree of colour saturation of surface. Then, from lower part of technical cloth layers are exposed to rarefaction for penetration of pigment into front layer to depth sufficient to obtain required degree of hiding power.

EFFECT: technical result is increasing durability of decorative properties of chrysotile cement sheet.

2 cl, 2 dwg