METHOD TO MANUFACTURE STENCIL TO APPLY PATTERNS ON PIECES Russian patent published in 1995 - IPC

FIELD: pattern application on pieces. SUBSTANCE: method provides for slipping stretch net stocking, made, for example, of capron, over gauge of piece and apply a layer of polymeric material on it. Then stocking with polymeric material is taken off, turn it inside out and slip it over gauge once more. Then lavsan layer is applied on it and second layer of polymeric material is applied on it and window is cut along contour of pattern on it. In some versions layers of polymeric and lavsan materials are applied in the form of ring-type strips or in the form of local stains in zones of pattern application. Polymeric and lavsan materials are applied in the form of ring-type strips by spraying. Second ring of polymeric material is made with its width exceeding width of first ring. Screens in the form of spaced holes are made on stencil. EFFECT: method is used to produce patterns on pieces by spray of abrasive material. 6 cl, 10 dwg