B - Operations – Transporting – 05 – D
Patent
B - Operations, Transporting
05
D
B05D 1/12 (2006.01) B05B 5/047 (2006.01) B05B 5/14 (2006.01) B05B 15/04 (2006.01) B05D 7/20 (2006.01)
Patent
CA 2205013
The invention concerns a method and a device for application of talcum powder or a powder of super-absorbent type (SAP) or the like, the latter containing polyacrylate and/or a salt, such as a sodium salt, on a strip. In accordance with the invention the strip is made to travel through a treatment chamber (3) in which debouch a number of powder supply lines (12) distributed circumferentially with respect to said strip. The powder supply lines are incorporated in a friction charger formed with polarizing ducts through which the powder material is made to pass.
L'invention concerne un procédé et un dispositif d'application sur une bande d'une poudre de talc ou d'une poudre de type super-absorbant, par exemple, cette dernière contenant un polyacrylate et/ou un sel tel qu'un sel de sodium. La bande traverse une chambre de traitement (3) où arrivent plusieurs conduites (12) d'alimentation en poudre réparties de façon circonférentielle autour de cette bande. Ces conduites d'alimentation en poudre sont incorporées dans un chargeur par friction constitué de canaux polarisants au travers desquels on fait passer cette poudre.
Corporation Nordson
Macrae & Co.
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