Double layer forming fabric with paired warp binder yarns

D - Textiles – Paper – 21 – F

Patent

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Details

D21F 1/10 (2006.01) D21F 1/00 (2006.01)

Patent

CA 2599939

A papermaker's fabric, usable in the forming section of a paper machine, has first and second layers of cross-machine direction (CD) yarns interwoven with sets of machine-direction (MD) yarns. Each set has four pairs of MD yarns with each pair comprising a first MD yarn and a second MD yarn. The first and second MD yarns each cross between and weave with both the first and second layers of CD yarns. In the MD, each pair effectively produces a four- shed contour in the first layer and a two-shed contour in the second layer. Each pair is shifted in the CD, such that 4 pairs of MD yarns combine to effectively produce a four-shed contour in the CD in the first layer.

L'invention concerne un tissu de fabrication de papier utilisable dans la partie de formation d'une machine à papier, il présente des première et seconde couches de fils en sens transversal au sens machine (CD) entrelacées avec des ensembles de fils en sens machine (MD). Chaque ensemble présente quatre paires de fils MD, chaque paire comprenant un premier fil MD et un second fil MD. Les premier et second fils MD s'entrecroisent et se tissent chacun avec les première et seconde couches de fils CD. Dans le sens machine transversale MD, chaque paire produit efficacement un contour à quatre foules dans la première couche et un contour à deux foules dans la seconde couche. Chaque paire et décalée dans Le CD, de sorte que quatre paires de fils MD se combinent pour produire efficacement un contour à quatre foules dans le CD dans la première couche.

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