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Basic knowledge of offset printing ink

來源:杭華股份            發(fā)布時間: 2022-08-01

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.

 

The of composition Offset printing ink

 

Sheet-fed offset ink

Pure vegetable oil offset printing ink

Heat-set rotary ink

Cold set rotary ink

Pigment

10-30%

10-30%

10-30%

10-30%

Resin

25-35%

25-35%

25-30%

25-30%

Vegetable oil

20-25%

30-45%

7-12%

25-40%

Mineral oil

20-25%(boiling range 280-310℃)

0%

30-40%(boiling range 250-270℃)

20-30%(boiling range >310℃)

Metal desiccant

0.3-2%

0.3-2%

0%

0%

Other Agent

0.3-2%

0-5%

0-5%

0-5%

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