Microcleaning process for sponge or porous polymeric products

Details Microcleaning process for sponge or porous polymeric products Microcleaning process for sponge or porous polymeric products

1998-11-16

2000-09-19

Gulakowski, Randy

Cleaning and liquid contact with solids

Processes

Miscellaneous

134 221, 134 2216, 134 2217, 134 2219, 134 26, 134 28, 134 29, 134 36, 15 77, 15 971, 15102, 510108, 510109, B08B 900

Patent

active

061206164

ABSTRACT:
The present invention provides a novel method (300) for cleaning sponge or porous polymeric devices, e.g., scrubbing brush. The method includes a step of providing (302) (332) a porous polymeric member, which has an outer surface and may also include inner surfaces. The member also has a plurality of impurities (e.g., ions, particles) distributed on the surface and through the member. These impurities can be introduced into the member through the manufacturing process, which is commonly "dirty" and does not provide substantially clean polymeric materials. In some embodiments, the impurities are a by-product of the manufacturing process. To clean the member, it is subjected to a wash cycle (330). The wash cycle can be performed by a washing-type machine, as well as other types of apparatus. The wash cycle can include at least one or more treatments to remove selected impurities from the member. The treatments include washes using an acid (339), a base (341), a solvent (337), and other chemicals. Depending upon the treatment or treatments used, selected impurities are removed in a desirable manner.

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