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聚脂薄膜应用于测绘工作已有数年.它具有轻便、抗拉强度高、温度±50℃之间伸缩性小以及一次成图并可免除描绘和复照等优点,深受广大测绘人员欢迎.过去,我们应用聚脂薄膜进行室内彩色清绘时,碰到很多困难.在上级公司和队党委的领导下,我们对聚脂薄膜彩色图清绘作了一些试验,初步作出水洗不掉,胶擦不脱、耐光性颇好的彩色图件.其方法如下:
Polyester film used in surveying and mapping has been for several years.It has the advantages of light weight, high tensile strength, low shrinkage between ± 50 ℃ and one-time mapping and exemption from drawing and photo-referencing. In the past, we encountered a lot of difficulties when using polyester film for indoor color printing. Under the leadership of the superior company and the party committee, we made some experiments on the color image of polyester film. Rubbed off, light-colored quite good color map.The method is as follows: