High solids self-contained printing ink
First Claim
Patent Images
1. A self-contained carbonless copy sheet comprising:
- a) a support sheet and;
b) a coating thereon, said coating comprising a non-volatile diluent, an acidic color developer, microcapsules containing a dyestuff precursor capable of reacting with said acidic color developer to form a color, a binder, and a water soluble surfactant which is compatible with said binder when said coating is wet, but which is incompatible with said binder when said coating has dried.
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Abstract
A high solids contents, aqueous-based, self-contained printing ink is provided including, a non-volatile diluent, an acidic color developer, a binder, and a water soluble surfactant which is compatible with the binder in the ink, but which is incompatible with the binder when the ink has dried. The high solids, self-contained printing ink further includes microcapsules containing a dyestuff precursor that is capable of reacting with the acidic color developer to form a color. The ink may be used to prepare self-contained carbonless copy sheets.
32 Citations
12 Claims
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1. A self-contained carbonless copy sheet comprising:
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a) a support sheet and; b) a coating thereon, said coating comprising a non-volatile diluent, an acidic color developer, microcapsules containing a dyestuff precursor capable of reacting with said acidic color developer to form a color, a binder, and a water soluble surfactant which is compatible with said binder when said coating is wet, but which is incompatible with said binder when said coating has dried. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification