Baked color pencil lead and process for producing the same

Details Baked color pencil lead and process for producing the same Baked color pencil lead and process for producing the same

1998-06-22

1999-06-15

Klemanski, Helene

Compositions: coating or plastic

Coating or plastic compositions

Marking

C09D 1300

Patent

active

059118148

ABSTRACT:
A baked color pencil lead prepared by impregnating pores of a white or light-colored porous baked lead with a dye solution prepared by dissolving a dye in a mixed solvent of polyoxyethylene alkyl ether represented by the following Formula (1) and a low boiling point organic solvent, wherein polyoxyethylene alkyl ether contained in the dye solution is adjusted to 35 to 90% by weight, and then drying to remove the low boiling point organic solvent:

REFERENCES:
patent: 4688572 (1987-08-01), Iizuka et al.
patent: 5346540 (1994-09-01), Schlennert
patent: 5595589 (1997-01-01), Hoshiba et al.
patent: 5716434 (1998-02-01), Koyama

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