Cosmetics hose production process which is the distinguishing feature of offset printing and silk screen?

Cosmetics hose production process which is the distinguishing feature of offset printing and silk screen? Whether which hose cosmetics manufacturers, in the process of manufacturing cosmetics hoses, printing process is usually offset printing and screen printing ( Also known as the silk screen printing) 。 Screen printing is plastic product of secondary processing methods, to improve the appearance of the plastic products and decoration, and to reflect the functional requirement of the plastic products. And silk screen printing can do the following: ( 1) Strong adhesion, good abrasion resistance. ( 2) Handwriting and pattern is clear, colorful and beautiful. ( 3) Silk screen printing position must be accurate, the dimension precision is very high. The diversity of the silk screen printing of plastic products and the characteristics of flexibility, at the time of printing should consider the following aspects: the dimension precision of plastic products and the products size variability. Before printing, plastic product surface treatment is needed. Silk screen print should choose high stability, strong resistance to solvent, pay attention to the proper tension control. Plastic screen printing ink friction resistance, light resistance, solvent resistance, the characteristics of the drying speed is fast. In the process of printing, need printing pressure, printing speed and drying speed requirements are relatively high. After some molding products in silk screen printing need high temperature processing. Because of printing produced in the drying process of a large amount of waste gas, it is necessary to make the workshop keep good ventilation condition. Plastic products easy to generate static electricity, so must be installed in addition to static electrical or take other measures to eliminate static electricity, in order to ensure normal printing. There are various kinds of plastic products, most of which are with curved surface products. At present, with the development of the plastic screen printing, can be directly printed on the bending of the surface of the plastic products.