聚酯薄膜是一种理想的制图材料,目前已广泛运用于制图工作中。但由于薄膜表面很光滑、不吸水、不易干,因此,在薄膜清绘图上用乳胶粘贴的注记、符号牢固程度差,在制图作业和搬运中,粘贴的注记,符号容易挠起和脱落,严重地影响成图质量。而在裱板图纸或硫酸透明描图纸上用乳胶粘贴的注记符号却很牢固。根据这个原理,我们进行了在乳胶液中加入适量的硫酸,以增强乳胶液与薄膜粘着力的试验。经过一系列的试验和实际作业,较好地解决了在 Polyester film is an ideal drawing material and has been widely used in cartography. However, since the surface of the film is smooth, non-absorbent, and difficult to dry, the notes and signs affixed with latex on the film clear drawing are poor in the degree of firmness. In the drawing work and the handling, the attached notes are easy to scratch and fall off. , seriously affect the quality of mapping. In the seesaw drawings or the sulfuric acid transparent tracing paper, the symbols marked with latex are firm. Based on this principle, we conducted an experiment to add appropriate amount of sulfuric acid to the latex to enhance the adhesion of the latex to the film. After a series of trials and practical operations, the problem was solved