METHOD FOR MAKING A MOULD AND FOR PRODUCING AN ELASTOMERIC SKIN

摘要

A method for making a mould (26) for producing an elastomeric skin which sho ws a texture. The required negative of this texture is provided on the mould surface by cutting the desired texture in the liner structure (24) used to form the mould surface; and/or by providing a master model (14) and by makin g the liner structure as an impression of the master model (14). The master model itself is provided with the desired texture by cutting this desired texture in the master model (14) or by using an elastic sheet material (12) forming the surface of the master model. The desired texture is either cut i n the elastic sheet material (12) or the elastic sheet material (12) is made a s an impression of a starting material (1) by moulding a flowable impression material having a Brookfield viscosity at application temperature smaller th an 100 Pa.s, preferably smaller than 50 Pa.s, or even lower. By the use of such low viscous impression materials, a texture of a better quality can be achieved on the mould surface.