天津市印刷厂

Discussion on the control techniques of spot color printing in offset printing technology

一、专色的检测

Detection of spot color

目前国内大部分包装印刷企业对专色的测控手段都比较落后，多数依靠工人师傅的经验来调配专色墨。这样做的缺点是专色墨的配比不够精确，调配时间长，主观因素影响大。一些有实力的大型包装印刷企业已采用了专色配墨系统对其进行管理。

At present, most of the packaging and printing enterprises in China are relatively backward in the means of spot color measurement and control, most rely on the experience of workers and masters to prepare spot color ink. The disadvantage of this is that the proportion of spot color ink is not accurate enough, and the deployment time is long. Some powerful packaging printing enterprises have adopted the spot color matching system to manage them.

专色配墨系统由电脑、配色软件、分光光度计、分析天平、匀墨仪、展墨仪组成。用该系统将公司经常使用的纸张、油墨的参数收入数据库中，应用配色软件对客户提供的专色进行电脑自动配色，利用分光光度计测量其CIELab值、密度值、△E，从而可以蠕动泵 保定建筑设计 保定网站建设 保定网站制作 保定网络公司 保定办公家具 保定轻钢别墅 实现专色配墨的数据化管理。

Spot-color ink matching system consists of computer, color matching software, spectrophotometer, analysis balance, ink leveler, ink developer. The parameters of paper and ink often used by the company are collected in the database by this system. The spot color provided by customers is automatically matched by computer by color matching software. The CIELab value, density value and E are measured by spectrophotometer. Thus the data management of spot color matching can be realized.