Method of producing products with endless surfaces, without edges, to form envelopes

摘要

Flexible material is processed to form a tube which is drawn half over itself. The edges of the tubes are connected to one another such that a single endless outer surface results, without edges. Or: an inner tube and an outer tube fitting over the latter are combined with one another to form an envelope which has a single endless outer surface, without edges. A single product can provide a multiplicity of appearances by displacing the outer surface in the direction of the immaterial axis over itself or in the direction of the circumference of the envelope. The products are suitable, inter alia, for curtains, wall hangings, clothing. With the production method, it is also possible to produce products for photographs, films, holograms or electronic data and/or for these data to be converted into typographies of the Gruber envelopes.