Surface treating a portion of small articles

Details Surface treating a portion of small articles Surface treating a portion of small articles

1976-04-12

1981-03-03

Pianalto, Bernard D.

Adhesive bonding and miscellaneous chemical manufacture

Delaminating processes adapted for specified product

Delaminating in preparation for post processing recycling step

427 47, 427256, B44C 122

Patent

active

042539099

ABSTRACT:
A method for coating, etching, or coloring a portion of the surface of small articles wherein a plurality of the small articles are supported mainly by the surface tension of the interface between air and a liquid containing a desirable coating, etching, or coloring solution. The small articles are then removed from the solution with the result being that only the portion of the article in contact with the solution becomes treated. The size of the portion of the surface of the small article to be treated can be controlled by adding surfactants to the solution to vary the surface tension.

REFERENCES:
patent: 265475 (1882-10-01), Waters
patent: 1407067 (1922-02-01), Johnson
patent: 1420306 (1922-06-01), Gigol et al.
patent: 2370636 (1945-03-01), Carlton
patent: 2418479 (1947-04-01), Pratt et al.
patent: 3676253 (1972-07-01), Cox
patent: 3938263 (1976-02-01), Tate

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