Coating processes – Direct application of electrical – magnetic – wave – or... – Pretreatment of substrate or post-treatment of coated substrate
Patent
1991-10-01
1993-06-22
Padgett, Marianne
Coating processes
Direct application of electrical, magnetic, wave, or...
Pretreatment of substrate or post-treatment of coated substrate
427270, 427271, 21912169, 21912171, B05D 306, B05D 500, B23K 2600
Patent
active
052215628
ABSTRACT:
The invention relates to a liquid transfer article, such as a printing roll, having a laser-engraved coated surface comprised of wells adapted to receive a liquid and land areas adapted to be wiped free of any liquid prior to contacting a receiving surface so that only the liquid in the wells are transferred. The land areas of the coated surface have a density of greater than 95% theoretical and a roughness of less than 6 micro-inches R.sub.a to insure that any unwanted liquid on the land areas can be wiped clean prior to contacting a receiving surface. The invention also relates to a method for producing the liquid transfer article.
REFERENCES:
patent: 4566938 (1986-01-01), Jenkins
patent: 4787837 (1988-11-01), Bell
patent: 5047116 (1991-09-01), Luthi et al.
"Roll Superfinishing with Coated Abrasives" Carbide and Tool Journal Mar./Apr., pp. 4-8, Alan P. Dimberg.
O'Brien Cornelius F.
Padgett Marianne
Praxair S.T. Technology, Inc.
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