发明名称 |
Medium for emulsion ink for stencil printing |
摘要 |
A medium for water-in-oil (W/O) emulsion ink for stencil printing is provided, which is useful for diluting the emulsion ink to obtain a transparent and pale color ink without lowering viscosity of the ink. The medium is a water-in-oil (W/O) emulsion comprising an oil phase and a water phase, in which the medium contains an extending pigment in the oil phase but is free from coloring pigments. The medium preferably has an optical density value of 1.4 or more as measured by a reflection densitometer when the medium is applied and dried in a thickness of 50 mu m onto a transparent sheet placed on a black standard board, and has 32 or less of flow value in one minute as measured by a spreadometer. The extending pigment preferably constitutes 1 to 5% by weight of the total weight of the medium, and may be inorganic fine particles or organic fine particles that are insoluble in said oil phase. The inorganic fine particles may be those subjected to lipophilic treatment.
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申请公布号 |
US5853466(A) |
申请公布日期 |
1998.12.29 |
申请号 |
US19970884633 |
申请日期 |
1997.06.27 |
申请人 |
RISO KAGAKU CORPORATION |
发明人 |
MATSUURA, TOMOKO;OKAWA, TERUAKI |
分类号 |
C09D11/00;C09D11/02;(IPC1-7):C09D11/02 |
主分类号 |
C09D11/00 |
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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