Papermaker's fabric with additional cross machine direction...

D - Textiles – Paper – 21 – F

Patent

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Details

D21F 1/10 (2006.01) D03D 11/00 (2006.01) D03D 13/00 (2006.01) D03D 15/00 (2006.01) D21F 1/00 (2006.01) D21F 7/08 (2006.01)

Patent

CA 2229613

A papermaker's forming fabric with a fabric layer including cross machine direction fabric yarns (21, 22) and machine direction fabric yarns (18', 18") interwoven to form a papermaking surface with alternating single knuckles (19) to define top, bottom, left, and right saddles (A, B, C, D) between adjacent ones of the cross machine direction fabric yarns. According to one embodiment, first and second additional cross machine direction yarns (23, 24) are interwoven with the base fabric (20) between adjacent cross machine direction yarns and positioned oppositely in top and bottom saddles. This weaving arrangement provides a papermaker's fabric with a stable fiber supporting surface with no compromise in drainage while maintaining a durable wear resistant machine contacting side of the fabric.

La présente invention concerne une toile de fabrication du papier constituée d'une couche de toile dont les fils (18', 18'') de toile en sens machine et des fils de toile transversaux (21, 22) entrelacés, de façon à former une surface de production de papier faisant alterner des articulations individuelles (19), et de façon à définir des gaufrages dirigés vers le haut, le bas, la gauche et la droite (A, B, C, D) entre des fils de toile adjacents transversaux au sens machine. Selon une première réalisation de l'invention, des premier et second fils additionnels (23, 24) transversaux au sens machine sont entrecroisés dans la toile de base (20) entre les fils de toile adjacents transversaux au sens machine et disposés recto-verso pour former des gaufrages dirigés vers le haut et vers le bas. Cet agencement d'entrelacement permet d'obtenir une toile à papier dont la surface de support des fibres est stable sans entraver le drainage et tout en maintenant une face de toile en contact avec la machine résistante à l'usine et durable.

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