Ink is stable and uniform dispersion system mainly composed of pigments, varnish, and various additives
Offset printing ink is a colloidal ink composed of synthetic resin, dry vegetable oil, high boiling paraffin oil, pigment and auxiliary agent.
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The of composition Offset printing ink |
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Sheet-fed offset ink |
Pure vegetable oil offset printing ink |
Heat-set rotary ink |
Cold set rotary ink |
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Pigment |
10-30% |
10-30% |
10-30% |
10-30% |
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Resin |
25-35% |
25-35% |
25-30% |
25-30% |
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Vegetable oil |
20-25% |
30-45% |
7-12% |
25-40% |
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Mineral oil |
20-25%(boiling range 280-310℃) |
0% |
30-40%(boiling range 250-270℃） |
20-30%(boiling range ＞310℃） |
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Metal desiccant |
0.3-2% |
0.3-2% |
0% |
0% |
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Other Agent |
0.3-2% |
0-5% |
0-5% |
0-5% |
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