METHOD AND APPARATUS FOR COMPRESSING FIBROUS BODIES.

摘要

The present invention relates to a method of compressing fibrous bodies which are held in place on a perforated support (1, 3) by means of negative pressure. According to the invention, each fibrous body to be compressed is first arranged on a first support (1) which comprises parts with (8) and without (7) perforations within the region covered by the fibrous body. A first compression of the fibrous body is then brought about in those portions thereof which cover the part (7) or parts without perforations of the first support (1). The partly compressed fibrous body is then transferred to a second support (3) which comprises perforations in the part (11) or parts covered by compressed portions of the fibrous body but is without perforations within one or more parts (12) covered by uncompressed portions of the fibrous body, and a second compression of the fibrous body is brought about when the latter is placed on the second support (3) in those portions of the body which cover the part or parts (12) without perforations of the second support. If required, similar compression steps are repeated until all portions of the fibrous body have been compressed.The invention also relates to an arrangement for implementing the method.