Stamp ink and stamp ink impregnation pad for stencil printing

Details Stamp ink and stamp ink impregnation pad for stencil printing Stamp ink and stamp ink impregnation pad for stencil printing

1996-01-29

1998-01-06

Klemanski, Helene

Compositions: coating or plastic

Coating or plastic compositions

Marking

106 314, 106 3141, 106 3166, 106 3172, 106 3773, 106 32, C09D 1106, C09D 1108

Patent

active

057049688

ABSTRACT:
A stamp ink, for stencil printing, is made from a coloring-agent mixed in a vehicle made from resin and oil-based solvent. The stamp ink has a viscosity in a range from 20 to 250 poises at a shear rate of 20/sec under temperature of 25.degree. C. and has a thixotropy index T.I. in a range from 1.2 to 3.0 under temperature of 25.degree. C. where the thixotropy index T.I. is defined in the expression of: T.I.=(Viscosity at a shear rate of 0.5/sec)/(Viscosity at a shear rate of 5.O/sec).

REFERENCES:
patent: 5378739 (1995-01-01), Koike et al.
patent: 5395435 (1995-03-01), Mizobuchi
patent: 5483880 (1996-01-01), Seo et al.
patent: 5573578 (1996-11-01), Okuda
patent: 5575839 (1996-11-01), Okuda

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