Surface strength tester

Details Surface strength tester Surface strength tester

D - Textiles, Paper

21

G

73/117

D21G 9/00 (2006.01) B08B 5/02 (2006.01) G01N 1/22 (2006.01) G01N 33/34 (2006.01)

Patent

CA 1333231

A surface strength tester wherein lint or like material is freed from the surface of a paper web travel- ing passed the tester. The tester includes a material pick-up head having an air bearing surface through and along which an air stream is passed to generate an air bearing and a significant negative air pressure between the surface and web. The negative pressure holds the web and air bearing suface in close proximity to each other and causes lint material to be freed from the web surface. The freed lint material is carried in the air stream. A vacuumed pick up has its inlet opening located relative to the air bearing surface such that material freed and carried in the air stream is sucked into the inlet. This material is then collected and the time to collect a preset amount of material is measured thereby to provide an indication of the linting propensity of the web.

562851

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