Method and apparatus for making an absorbent composite

Details Method and apparatus for making an absorbent composite Method and apparatus for making an absorbent composite

D - Textiles, Paper

02

J

D02J 1/18 (2006.01)

Patent

CA 2539802

A method and apparatus for making an absorbent composite from continuous tow is disclosed. The method and apparatus includes the steps of or means for spreading a crimped tow; de-registering the crimped tow; shaping the de- registered tow to a substantially rectangular cross-section; and distributing a particulate onto the shaped tow. The step of or means for de-registering the crimped tow uses at least two pairs of rollers, each pair of rollers having a metal-faced roller and a rubber-face roller. The metal-faced rollers are oppositely disposed between the pair of rollers. Alternatively, the metal- faced rollers are disposed between the pair of rollers on the same side.

L'invention concerne un procédé et un dispositif de fabrication d'un composite absorbant à partir d'étoupe continue. Le procédé selon l'invention consiste à étaler une étoupe crêpée, à désenregistrer l'étoupe crêpée, à former l'étoupe désenregistrée de manière à lui imprimer une section transversale essentiellement rectangulaire, et à distribuer un matériau particulaire sur l'étoupe formée. L'étape ou l'élément de désenregistrement de l'étoupe crêpée fait intervenir au moins deux paires de cylindres, chaque paire de cylindre présentant un cylindre à surface métallique et un cylindre à surface caoutchouc. Les cylindres à surface métallique sont disposés de façon opposée entre la paire de cylindres. Dans un autre mode de réalisation, les cylindres à surface métallique sont disposés entre la paire de cylindres sur le même côté.

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