发明名称 |
Microcapsule containing ultraviolet absorber |
摘要 |
The present invention provides a heat sensitive recording material comprising a substrate, a recording layer formed over the substrate and containing a colorless or light-colored basic dye and a color acceptor, and a protective layer formed over the recording layer, the recording material being characterized in that microcapsules having an ultraviolet absorber enclosed therein and having substantially no color forming ability are incorporated in the protective layer. Further, the present invention provides microcapsules having an ultraviolet absorber and as required an organic solvent enclosed therein, which have capsule wall film of synthetic resin and mean particle size of 0.1 to 3 mu m.
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申请公布号 |
US5443909(A) |
申请公布日期 |
1995.08.22 |
申请号 |
US19930125165 |
申请日期 |
1993.09.23 |
申请人 |
KANZAKI PAPER MANUFACTURING CO., LTD. |
发明人 |
MANDOH, RITSUO;MINAMI, TAKEHIRO;ISHIDA, KATSUHIKO;MITOH, HISAYOSHI |
分类号 |
B01J13/16;B41M5/28;B41M5/40;B41M5/42;B41M5/44;B41M5/46;(IPC1-7):B01J13/16;F21V9/06;G02B5/22 |
主分类号 |
B01J13/16 |
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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