发明名称 |
Copy systems comprising microencapsulated colorants |
摘要 |
Microcapsules containing a solution or dispersion of a colorant, especially a solution of an oil-solubilized sulfur dye, in an organic liquid having a vapor pressure below 20 mm Hg at 25 DEG C. can be coated on a side of a sheet of paper for use in pressure-sensitive carbonless copy systems. The solutions of the oil-solubilized sulfur dyes, i.e. 1) colored products of the oxidation of a leuco sulfur dye, leuco sulfurized vat dye or reaction product of a leuco dye or sulfurized vat dye with a cationic compound and 2) colored reaction products of a solubilized sulfur dye with a cationic compound also constitute an aspect of the invention, as do microcapsules whose walls contain an opacifying agent incorporated therein.
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申请公布号 |
US5585051(A) |
申请公布日期 |
1996.12.17 |
申请号 |
US19950396804 |
申请日期 |
1995.03.02 |
申请人 |
SANDOZ LTD. |
发明人 |
HOSIE, LYNN;AGARWAL, NIRAJ;SIE, MARIA W.;WHITLEY, DAVID A. |
分类号 |
B01J13/02;C09B67/02;(IPC1-7):B01J13/02;B01J13/04 |
主分类号 |
B01J13/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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