Stratified press fabric

D - Textiles – Paper – 21 – F

Patent

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Details

D21F 7/08 (2006.01)

Patent

CA 2500128

A stratified press fabric (10) for the press section of a paper machine includes a base fabric (30) in the form of an endless loop. A first staple fiber batt material (40) is attached to the outer side of the base fabric (44) by needling. A fine fabric covers the first staple fiber batt material, and a second staple fiber batt material (50) is attached to the fine fabric by needling. The fibers making up the second staple fiber material are finer, that is, of smaller diameter or denier, than the fibers making up the first staple fiber material. The fine fabric prevents the coarser fibers of the first staple fiber batt material from being needled therethrough to mix with the finer fibers of the second fiber batt material.

L'invention concerne une toile de presse laminée (10) pour la section d'une presse d'une machine à papier comprenant une toile de base (30) sous forme d'une boucle sans fin. Une première matière (40) de nappage de fibre de textiles artificiels est fixée au côté externe de la toile de base (44) par aiguilletage. Une toile fine recouvre la première matière de nappage de fibre de textiles artificiels, et une seconde matière de nappage de fibre de textiles artificiels (50) est fixée à la toile fine par aiguilletage. Les fibres formant la seconde matière de fibres de textiles artificiels sont plus fines, leur diamètre ou denier étant inférieurs à celui des fibres formant la première matière de fibres de textiles artificiels. La toile fine évite que des fibres plus grossières de la première matière ne soient aiguilletées de manière à mélanger les fibres plus fines de la second matière.

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