| 摘要 |
The present invention is a solid marking composition which may be in the form of, for example, a crayon or a marking pencil lead which is washable from fabrics, wallpaper, and painted surfaces and which also has working properties which closely approximate those achieved in conventional crayons. The composition includes a polyethylene glycol resin having a molecular weight of at least about 7,000, a water soluble surfactant which is other than a liquid at room temperatue, and a pigment. Optionally, the composition of the invention may include one or more of a compatible viscosity modifier, a compatible plasticizer, an antifoam agent, and an inert filler.
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