| 摘要 |
PURPOSE:To prevent the adherence and sticking phenomenon of dregs by using a heat-sensitive recording material containing the fine particles of a copolymer obtaned from styrene and a cross linking agent or styrene, a monomer copolymerizable with styrene and a cross linking agent. CONSTITUTION:A heat-sensitive luminous layer contains the fine particles of a copolymer obtained from styrene (a) and a cross linking agent (c) or/and a copolymer obtained from styrene (a), a monomer (b) copolymerizable with styrene (a), and a cross linking agent (c). The monomer (b) simple or a mixture of acrylnitrile, methyl (metha)acrylate, etc., and the preferred amount of the monomer (b) is 60pts.wt. or less on the basis of 100pts.wt. of the whole component. The cross linking agent (c) used includes oil-soluble multi-functional unsaturated monomers or multi-functional unsaturated prepolymers which are used solely or in combination. The mixing ratio of the cross linking agent (c) is 0.02pts.wt. or more on the basis of 100pts.wt. of the whole components. The grain size of the copolymer is preferably 0.1-20mum and the preferred amount of the copolymer used in the recording layer is 5-60wt%. |
