本发明提供包含热固性环氧树脂，单官能丙烯酸酯单体，多官能丙烯酸酯单体，光引发剂和胺增效剂的喷墨用树脂组合物。 根据本发明的喷墨树脂组合物可以改善通过固化树脂组合物而形成的固化树脂层的耐热性，耐化学性和附着力。 具体地，不同于用于喷墨用途的以往的树脂组合物中，在不使用溶剂时，它是很容易地从喷墨打印机中排出的树脂组合物，即使在较薄的，而不会影响印刷电路板的特性，可以在树脂绝缘层中形成。

The present invention provides a resin composition for ink jet comprising a thermosetting epoxy resin and a monofunctional acrylate monomers, polyfunctional acrylate monomers, photoinitiator, and amine synergistic host.
The resin composition for inkjet according to the invention can be cured to improve the heat resistance, chemical resistance and adhesion of the cured resin layer formed of it. In particular, unlike the conventional ink-jet resin composition without using a solvent, is easily the resin composition discharged from the ink-jet printer, even with the thinner without affecting the characteristics of the printed wiring board, it is possible to form the resin insulating layer.