METHOD OF PRODUCING MARKED PLAYING WOOL CLOTH Russian patent published in 1999 - IPC

FIELD: production of marked playing wool cloths used in casino. SUBSTANCE: method consists in than course cloth from wool yarn without or with addition of strengthening capron fibers of up to 20% of wool cloth weight is dyed with color of marking (or white cloth is taken). After drying to residual moisture content not exceeding 15%, sections intended for marking are reserved with polymer-monomer alkyl (meth)acrylate composition with dynamic viscosity from 50000-120000 MPa.s. Weight ratio of polymer and monomer in composition is from 62-38 to 73:27. After hardening of the composition, wool cloth is dyed with color of background, and after drying, reserving composition is washed out with organic polar solvent. EFFECT: distinct contours of marking, preservation of napped smooth surface of entire wool cloth including places occupied by marking, stable dyeing of marking and background. 3 cl, 3 tbl