Method of making cleaning, scouring and/or polishing pads...

Details Method of making cleaning, scouring and/or polishing pads... Method of making cleaning, scouring and/or polishing pads...

B - Operations, Transporting

24

D

15/121, 57/2

B24D 3/32 (2006.01) A47L 13/16 (2006.01) B24D 11/00 (2006.01) B24D 15/04 (2006.01)

Patent

CA 1058812

ABSTRACT OF THE DISCLOSURE A method of increasing the tear resistance of a plur- ality of separate, closely adjacent protuberances formed integrally with the body of a cleaning or scouring pad and the pad produced thereby is disclosed. The flexible, foamed plastic material from which the pad is made has a first rigidity, and the method in- volved comprises providing a rigidifying liquid which will harden into a flexible mass having a rigidity greater than the first rigidity; impregnating the foamed plastic material at said pro- tuberances to at least the root portions thereof with the rigidify- ing liquid, and causing the liquid to harden, whereby the protub- erances are substantially more rigid thin the main body portion The method increases the tensile strength of the pad at the scrubb- ing surface while using standard inexpensive foamed materials having no exceptionally high tensile strength.

252788

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