Patent ID: 8431632

Claim:
A crayon comprising a colorant, a gelling agent, an organic solvent, a resin component, and a plasticizer, wherein the plasticizer is at least one selected from the group consisting of diisononyl adipate, acetyltributyl citrate, 1,2-cyclohexanedicarboxylic acid diisononyl, and alkylsulfonic acid phenyl ester and is contained in an amount of 1 to 20% by weight of the crayon; wherein the resin component consists of a film forming resin and an adhesive resin, and the film forming resin is at least one selected from the group consisting of a polyvinyl butyral resin and a cellulosic resin, and the adhesive resin is at least one selected from the group consisting of a ketone resin, a xylene resin, a polyamide resin, an acrylic resin, a maleic acid resin, a terpene-phenol resin, and an alkylphenol resin, and wherein the weight ratio of the film forming resin to the adhesive resin is 1:0.1 to 1:5, and wherein the film forming resin and the adhesive resin are contained in total in the crayon in an amount of 3-40% by weight of the crayon; and wherein the organic solvent is at least one selected from the group consisting of ethylene glycol monobutyl ether, propylene glycol monobutyl ether, dipropylene glycol monomethyl ether, and 3-methyl-3-methoxybutanol and contained in an amount of 20-80% by weight of the crayon.