Carbohydrate products of photosynthesis as charging adjuvant for positive liquid electrostatic developers
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United States of America Patent
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Dec 31, 1991
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app pub date -
Dec 13, 1990
filing date -
Dec 13, 1990
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Abstract
An electrostatic liquid developer having positive charging characteristics consisting essentially of: (A) a non-polar liquid having a Kauri-butanol value of less than 30, present in a major amount, (B) thermoplastic resin particles having an average by area particle size of less than 10 .mu.m, (C) a nonpolar liquid soluble ionic or zwitterionic charge director compound, and (D) a carbohydrate product of photosynthesis comprised of at least one saccharose present in (A) and/or dispersed in (B). The liquid developer is useful in copying, color proofing, digital color proofing, making lithographic printing plates, and resists.
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