Baked colored pencil lead and process for producing the same

Abstract

A process for producing a baked color pencil lead, comprising dipping a white or pale color porous baked lead having a volume-based median pore diameter of 0.27 μm or less in a dye ink and then applying a pressure of 1.5 MPa or more thereto to impregnate pores of the above baked lead with the dye ink, in particular, a process for producing a baked color pencil lead, comprising impregnating the pores thereof with a dye ink solution containing as the solvents 35 to 90% by weight of at least one of non-volatile solvents represented by the following Formulas (I) to (III) based on the ink solution and a low boiling organic solvent by applying pressure and then drying the above low boiling organic solvent, and a color pencil lead obtained by the above process: CH3(CH2)7CH═CH(CH2)7CH2OH  (I) R1O(CH2CH2O)nH  (II) in Formula (II), R1 represents decanoyl, undecanoyl, lauroyl, tridecanoyl or oleoyl, and n is 4.5 to 15; and R2—O—(CH2CH2O)mH  (III) in Formula (III), R2 represents decyl, undecyl, lauryl, tridecyl or oleyl, and m is 1 to 14.

Dependencies are inferred from the claim text.