Water-soluble solid drawing material

Abstract

Abstract PURPOSE: To provide a water-soluble solid drawing material which is less sticky, containing at least a pigment, a water-soluble resin or a wax, a surfactant and a water-absorbing polymer. CONSTITUTION: There is provided a water-soluble solid drawing material containing at least a pigment (A), a water-soluble resin and/or a wax (B), a surfactant (C) and a water-absorbing polymer (D). As the pigment A, TiO 2 , carbon black and red iron oxide can be used. As the component B, polyethylene glycol and paraffin wax can be used. As the component C, any of the inonic and the nonionic surfactants can be used. As the component D, it is preferred to use a cpd. which does not absorb moisture under the normal condition, but absorbs moisture only at a high humidity and has a water absorption not less than 50 times the weight of the cpd. An example of the component D is an acrylic crosslinked polymer. Pref. the pomponent A is used in an amount of 3W30wt% based on the total weight of the drawing material. The component B is used in an amount of 50W90wt%, the component C is used in an amount of 1W20wt%, and the component D is used in an amount of 0.1W5wt%. COPYRIGHT: (C)1981,JPO&Japio

Inventors

• 👤 Masahiro Iwata
• 👤 Hiroyuki Shiga
• 👤 Toshie Nagatani
• 👤 Yasuhiro Takahashi

Bibliographic Details