| 摘要 |
PCT No. PCT/EP89/00998 Sec. 371 Date Feb. 26, 1991 Sec. 102(e) Date Feb. 26, 1991 PCT Filed Aug. 25, 1989 PCT Pub. No. WO90/03448 PCT Pub. Date Apr. 5, 1990.A process for stretching leather and similar flat materials, characterized by at least one part of an initial surface of a piece of leather is placed on a bearing surface which is slidable with respect to the leather, the piece of leather being loaded with pressure forces, which are spread over at least one part of the bearing surface, working in the direction of the bearing surface, and the stretching forces for stretching the leather under strain relative to the bearing surface are put into effect over at least one part of a second surface of the piece of leather and being at least approximately tangential with reference to a leather surface as well as at least approximately polydirectional in the direction of the edge of the leather piece.
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