| 摘要 |
PURPOSE:To provide a printing assisting agent superior in film forming properties, long-term shelf stability, emulsifying ability, and non-image part desensitizing ability and superior in metering roll aniti-staining properties, bleeding properties, emulsifying stability, and continuous stability as a composition of lithographic printing dampening water. CONSTITUTION:This assisting agent containes a water-soluble hemicellulose as an effective content. In this manner, film forming properties, long-terms shelf stability, emulsifying ability, and non-image part desensitizing properties are superior to the prior art. It also has a superior effect on emulsifying stability and continuous stability as a composition of lithographic printing dampening water. |
