| abstract |
PURPOSE: To provide the title ink which gives opaque handwriting which is clearly visible even on transparent surfaces and has excellent erasability immediately after writing and after a certain period of time, containing a resin, a specified glycol ether ester, a coloring component composed of a pigment and TiO 2 and an org. solvent. n CONSTITUTION: 0.5W12wt.% resin (A) such as polyvinyl butyral, cellulose derivative, etc., 0.5W20wt.% glycol ether ester (B) of formula I or II [wherein X is a 0W24C alkylene, an alkenylene, a hydroxyalkylene or phenylene; R 1 and R 2 are each H or CH 3 ; R 3 is a 1W30C alkyl or phenyl; R 4 is a 5W29C (hydroxy) alkyl, a (hydroxy)alkenyl; n is 1W10] as an additive for imparting strippability, 1W35wt.% pigment (C) selected from the group consisting of org. pigments and fluorescent pigments and TiO 2 (D) are added to 40W95wt.% org. solvent (E) having a b.p. of 70W180°C such as an aliph. lower alcohol, an aliph. ketone, etc. The mixture is mixed with one another. n COPYRIGHT: (C)1988,JPO&Japio |