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Ink for plate pen

  • US 6,508,870 B1
  • Filed: 08/21/2000
  • Issued: 01/21/2003
  • Est. Priority Date: 08/25/1999
  • Status: Expired due to Fees
First Claim
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1. An ink for a plate pen comprising a penetrant at a blending amount from 0.5 to 3.0% by weight, and a coloring agent, a humectant and water, wherein viscosity at 20°

  • C. is from 1.2 to 10 mPa·

    S and surface tension is from 35 to 55 dyne/cm.

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