Method for manufacturing press felt with seam, press felt,...

D - Textiles – Paper – 21 – F

Patent

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Details

D21F 7/08 (2006.01) D21F 7/10 (2006.01)

Patent

CA 2695159

The invention relates to a method for manufacturing a press felt with a seam, to a press felt, and further to a base fabric of a press felt. The base fabric (1) is a one-base structure with machine direction yarns (10a, 10b) forming seam loops (12) and further machine direction yarns (7) running in the web-side surface layer (A). The machine direction yarns weave with cross-yarns (8). The yarn ratio of the surface layer machine direction yarns to the intermediate layer and further the bottom layer machine direction yarns is at least 2:1:1. In addition, the surface layer machine direction yarns have a long run and their cross-sectional area is smaller than the yarns forming the seam loops.

La présente invention porte sur un procédé de fabrication d'un feutre pressé avec couture, sur un feutre pressé, ainsi que sur un tissu de base d'un feutre pressé. Le tissu de base (1) a une structure à une seule base avec des fils sens machine (10a, 10b) formant des boucles de couture (12) et en outre des fils sens machine (7) s'étendant dans la couche de surface côté voile (A). Les fils sens machine sont tissés avec des fils transversaux (8). Le rapport de fil des fils sens machine de la couche de surface aux fils sens machine de la couche intermédiaire, ainsi qu'aux fils sens machine de la couche inférieure est d'au moins 2/1/1. De plus, les fils sens machine de la couche de surface ont une longue étendue et leur surface en coupe transversale est inférieure à celles des fils formant les boucles de couture.

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