Adhesive bonding and miscellaneous chemical manufacture – Delaminating processes adapted for specified product – Delaminating in preparation for post processing recycling step
Patent
1977-08-08
1978-08-08
Klein, David
Adhesive bonding and miscellaneous chemical manufacture
Delaminating processes adapted for specified product
Delaminating in preparation for post processing recycling step
96 36, 156651, 156661, C23F 102
Patent
active
041054938
ABSTRACT:
The invention concerns a method for producing foils for dry shavers.
The method of the invention includes forming a layer of photosensitive material on each side of a metal plate, exposing each side to light to produce a pattern of exposed and unexposed areas, corresponding to perforations at one side and recesses in the backs of the bars of the foil on the other side, etching each side, them removing photosensitive material from the front side and carrying out further etching until the foil is completely perforated.
The invention is especially suitable for forming foils for battery operated dry shavers.
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Chemical Milling with Kodak Photosensitive Resist, Kodak Publication, 1968, pp. 1-39.
Bratlie Oistein J.
Klein David
Mahoney Donald E.
Massie Jerome W.
The Gillette Company
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