Method for making an ink-impregnated material

Details Method for making an ink-impregnated material Method for making an ink-impregnated material

1988-03-11

1989-04-25

Anderson, Philip

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

101327, 101348, 264 49, 4283142, 521 51, C08J 926, C08J 928

Patent

active

048246212

ABSTRACT:
A method for making an ink-impregnated material includes steps of mixing from a plastic powder, a water-soluble salt and a water-soluble, polar organic liquid to form a mixture, heating the mixture to a temperature sufficient to melt the plastic and form a cohesive structure, leaching the salt and polar organic liquid from the structure, drying the structure, and impregnating the structure with an ink. The resulting microporous material has an open-celled network of micropores extending therethrough, which micropores have smooth, rounded internal walls free of fibrous projections. An ink roll made of this material is suitable for use in an apparatus for printing coded images such as bar codes.

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patent: 4092456 (1978-05-01), Newman et al.
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patent: 4226886 (1980-10-01), Lakes
patent: 4289600 (1981-09-01), Lazarz et al.
patent: 4768437 (1988-09-01), Piepmeier, Jr. et al.

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