Abstract: The texture, structure and/or color of an exposed surface of a high-polymer material is influenced by subjecting localized areas of this exposed surface to the influence of a high-energy electron beam, and by treating the exposed surface before and/or during and/or after such exposure to the electron beam with a monomeric vinyl substance which grafts onto the locally irradiated areas so as to cause the latter to shrink relative to the remainder of the material.

Abstract: Two basic methods for texturizing or structurizing high-polymer materials are disclosed. One method resides in selectively irradiating a high-polymer material so as to form chemically active species in the material. The material is contacted with a treating medium which reacts with the chemically active species in such a manner as to cause shrinkage of the material. The texturizing or structurizing effects are due to the fact that the irradiated areas of the material will shrink to a different extent in dependence upon the concentration of the chemically active species and/or that the irradiated areas of the material will shrink to a different extent than the non-irradiated areas of the material.