PROCEDURES FOR THE MANUFACTURE OF AN OVER-SURFACE, FOLLOW-LIKE HALF-PRODUCT FROM A THERMOPLATE, PREPARATION FOR THE PURPOSE OF THE PROCEDURE, AND FOLLOW-UP PRODUCT OR PRODUCT

摘要

The invention relates to a method for producing a surface-structured, film-like semi-finished product (31) from a thermoplastic. According to said method a thermoplastic material is applied in a molten state or in the form of a film onto a surface (5) having fine cavities corresponding to the inverse structure (matrix) of the desired final structure. After solidification the plastic material is withdrawn from the surface so that the thermoplastic material which was introduced into the cavities and withdrawn therefrom forms a pile (12) consisting of protuberances. The protuberances constituting the pile (12) are elongated by combing, brushing, knife-coating and/or shear pinching (22-27), which significantly increases the length of the protuberances.