Textiles: manufacturing
Patent
1978-05-15
1980-06-10
Herbert, Jr., Thomas J.
Textiles: manufacturing
106 22, 427144, 427261, 428199, 428211, B41L 136, B05D 506, C09D 1110
Patent
active
042069378
ABSTRACT:
A pre-printed spirit duplicating master. A liquid ink composition composed of 40% to 62% by weight of a dye, 40% to 65% by weight of an alcohol soluble polyamid resin having a melting point in the range of 110.degree. C. to 125.degree. C., and 12% to 25% by weight of ethylene glycol is printed in reverse image on one side of a translucent paper sheet. After printing, the ink is dried to evaporate a portion of the ethylene glycol so that the dried ink contains approximately 3.0% to 6.25% by weight of ethylene glycol. The polyamid resin is soluble in alcohol so that multiple copies can be printed from the master using conventional duplicating equipment, and as the ink does not contain oils and greases there is no tendency of the ink to bleed or smear so that the masters can be bound in booklet form without the need of separating tissue sheets. As the sheet is translucent, the printing can be seen in positive image through the sheet so that no positive image printing is required on the front surface of the sheet.
REFERENCES:
patent: 3962526 (1976-06-01), Panken
patent: 3979550 (1976-09-01), Panken
patent: 4005237 (1977-01-01), Panken
George Banta Company, Inc.
Herbert, Jr. Thomas J.
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