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Title:
Whiskering test apparatus
Abstract:
A means is disclosed for producing whiskers with a laboratory apparatus that simulates an electrostatically assisted gravure press. The apparatus does not employ the dynamic printing conditions normally found on a printing press, but utilizes static conditions to reproduceably generate whiskers as a means for assessing the whiskering tendency of the ink or paper involved.
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Inventors:
Donigian, Doulgas W. (Catonsville, MD, US)
Application Number:
894106
Filing Date: 1978-04-06 Publication_date: 1979-12-11 Assignee:
Westvaco Corporation (New York, NY)
Primary Class(es):
73/150R
101/170
Other Classes:
US Patent Ref:
| 1665099 | Apr, 1928 | Kiesling et al. | 101/407. | | 1865610 | Jul, 1932 | Blair | 101/DIG. | | 2143376 | Jan, 1939 | Hansell | 346/153. | | 2173741 | Sep, 1939 | Wise et al. | 401/143. | | 2558900 | Jul, 1951 | Hooper | 101/219. | | 2748018 | May, 1956 | Miller | 346/153. | | 3052213 | Sep, 1962 | Schaffert | 118/659. | | 3661081 | May, 1972 | Wright | 101/DIG. | | 3810193 | May, 1974 | Metcalfe et al. | 346/153. | | 3921179 | Nov, 1975 | Weerstra | 346/153. |
Other Refs:
Other References:
Gravure Research Institute-Press Report, No. P-23, Oct. 1966, "Electrostatic Transfer of Ink in Gravure Printing" Gravure Research Institute, Inc., 22 Manhasset Ave, L.I., N.Y. American Ink Maker-Feb. 1974, pp. 24, 26, 27, 48, 49. Gravure Research Institute-GRI Newsletter, No. 29, Sep. 1973, pp. 17-21. Gravure Research Institute-Research Report No. M-53, Nov. 1975-"Whiskering in Gravure Printing". Gravure Research Institute-GRI Newsletter, No. 34, Jun. 1976, pp. 40-44. |