水转印培训.ppt

1.胶膜INK(油墨)可分为1C、2C、3C、4C,(C为Color首字母);外观主要区别可从油墨厚度来显现,油墨越厚,其膨胀时间延后,转印开始时间变迟,即下水位置拉长,可转印范围缩短,油墨包覆能力变弱,易产生针孔不良; 1.The film INK can be divided into 1C,2C,3C,4C(C means Color).The Appearances can be distinguished from INK thickness.The INK is thick or The expansion time is long or The starting time of transfer will be late.At the same time,the position of entering water will be prolonged and the transferring rang will be small the ability of INK wrapping will be weakened,so it take shape pine hold easily. 2.胶膜转印的适合水温通常为30,水中PVA平均浓度应小于0.2%; The suitable water temperature of film transferring is usually 30℃,PVA average density in water is 0.2%; 条 件 Condition 膨胀开始时间 The starting time of diffusion 转印开始时间 The starting time of transfer 可转印范围 Transferable rangle 膨胀率 Diffusion rate 包覆力 Wrapabilily 水温升高 Water temp inctease 较 早 Ealier 较 早 Ealier 缩 短 smaller 增 加 increased 不 变 Same PVA升高 PVA inctease 较 慢 Slower 稍 慢 Caer 增 长 Longer 稍 减 decreased 改 善 better 水汽 Vapor 水转印基本知识 原材料的认识 Learning Material 水转印基本知识 胶膜所适应的温、湿度 Application temperature and humidity 室温：20-25℃ 相对湿度:65-75%RH Room Temp: 20-25℃ Relative humidity:65-75%RH 湿 度 Humidity 温度 temperature 低于65%RH 65%RH（MAX） 65-75%RH 高于75%RH 75%RH（MIN） 低于20 ℃ 20 ℃(MAX) 胶膜变脆易破,易产生较多不良 Film becomes fragile and early broken 胶膜变脆易破 Film be fragile and easily broken 发生异常膨胀,边缘易卷曲 Over diffusion and warp along the film edge 20-25 ℃ 产生小皱纹 Slight wrinkles appeared 良好 Good 软化且易膨胀 Soft and easy diffusion 25-30 ℃ 产生小皱纹 Slight wrinkles appeared 良好 Good 膨胀提前,易卷曲并产生皱纹 Earlier diffusion ,wrinkle and warp are caused easily 高于30 ℃ 30 ℃(MIN) 稍微软化,膨胀不正常及小皱纹 Slight softness and wrinkles appeared 异常膨胀变差 Poor diffusion 膨胀提前,易卷曲并产生皱纹 Earlier diffusion,wrinkle and warp are caused easily 原材料的认识 Learning Material 水转印基本知识 原材料的认识 活化剂功用及组成说明 Function and composition of activator 活化剂主要由树酯、溶剂与可塑剂组成，一般以透明色为主，易挥发 The activator is consisted of resin, so