Capsules having discrete solvent/color former and diluent capsule encapsulated phases
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United States of America Patent
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Aug 15, 2000
Grant Date -
N/A
app pub date -
Nov 23, 1998
filing date -
Nov 23, 1998
priority date (Note) -
Expired
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Abstract
A process for producing a microencapsulated system comprising the steps of: (a) emulsifying a solution of color precursor in a solvent as a first internal phase and a diluent as a second internal phase in an external phase to produce discrete droplets of each of said first and second phases; and (b) encapsulating said droplets, is disclosed. A recording sheet is also disclosed which comprises a substrate having a layer of microencapsules containing a color precursor solution and microcapsules containing a diluent. Preferably the microcapsules are clusters of gelatin capsules.
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