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 shows 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 making 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 in the elastic sheet material ( 12 ) or the elastic sheet material ( 12 ) is made as an impression of a starting material ( 1 ) by moulding a flowable impression material having a Brookfield viscosity at application temperature smaller than 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.