Triple layer fabrics having multiple contour binders

Details Triple layer fabrics having multiple contour binders Triple layer fabrics having multiple contour binders

D - Textiles, Paper

21

F

D21F 1/10 (2006.01) D21F 7/08 (2006.01)

Patent

CA 2595767

A multi-layer fabric which may be utilized in a papermaking process is disclosed. Such fabric has a first layer of machine direction (MD) yarns, a second layer of MD yarns and a first system of cross-direction (CD) yarns having first binder yarns weaving a first contour pattern and second binder yarns weaving a second contour pattern different from the first contour pattern. The first binder yarns and the second binder yarns are each intrinsic to the first layer and each bind with the second layer. Moreover, the binder yarns each weave in sequence in the first layer more than once in a pattern repeat of the fabric. Multi-layer fabrics, such as triple layer fabrics, in general, have unacceptable resistance to internal abrasion and/or the weave may loosen (i.e. the yarns may slide from their original positions within the pattern) during use. The present invention provides a fabric which overcomes such disadvantages.

L'invention concerne un tissu multicouche pouvant être utilisé dans une opération de fabrication du papier. Ce tissu comprend une première couche (L1) de fils sens machine (SM) (1, 3, 5, ...), une seconde couche (L2) de fils SM (2, 4, 6, ...) et un premier système de fils sens travers (ST) possédant des premiers fils de liage (110) formant par entrecroisement un premier motif de contour et des seconds fils de liage (100) formant par entrecroisement un second motif de contour différent du premier motif de contour. Les premiers fils de liage (110) et les seconds fils de liage (100) sont chacun intrinsèques à la première couche (L1) et se lient chacun à la seconde couche (L2). En outre, les fils de liage (110, 100) s'entrecroisent chacun en séquence dans la première couche (L1) plus d'une fois selon une répétition de motif de tissu. Les fils de liage (110, 100) forment également par entrecroisement plusieurs motifs de contour dans la première couche (L1) selon la répétition de motif d'armure.

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