The development of screen printing
With the research of new materials and the development of manufacturing technology, with the development of computer and electronic technology and the increasing precision of mechanical manufacturing technology, screen printing technology has been greatly improved.Screen printing technology scale is also expanding, screen printing in all aspects of the continuous development.We analyze the development of screen technology from four aspects: screen printing material, technology, equipment and application.
This paper mainly analyzes the development of silk screen printing materials.The development of substrate, the development of ink, the development of photosensitive materials.In this section we first focus on the development of substrate.
Traditional substrate has textiles, wood, paper, plastic shell and some simple easy to adhere to the film materials, such as PVC,PC.
With the improvement of surface printing suitability of printing materials, printing process, the development of equipment, screen printing substrate gradually to a full range of development.Such as glass, hardened acrylic, hardened PC materials can make this printing technology widely used in the electronics industry in the booming area of touch screen printing.The use of advanced LED UV curing method, can ensure that the original screen cannot be printed very thin film materials can also use screen printing.And in speed can be compared with flexo printing and offset printing.PET materials with a variety of special effects on the surface, such as silk drawing, wood texture, metal-like effect, 3D effect after screen printing can be applied to a variety of home appliances.Greatly improve the added value and selling point of the product.
At the same time, the emergence of new materials and new processes, also directly or indirectly promote the overall progress of the screen printing industry.The traditional touch screen industry, for example, are generally need to use ITO film as a transparent conductive electrode, but as graphene and carbon nanotubes the emergence of new materials, such as silk screen printing used in the industries of touch screen and display, directly to the display technology bring people the “soft” era, the emergence of wearable display device and on this basis of call out.In graphene, carbon nanotubes are used to change touch screen or display industry, the need to adopt the method of silk screen printing on the surface of printing different silver pulp line, the surface of substrates materials eligibility and the characteristics of material itself, determines the traditional low adhesion, high temperature drying of silver pulp will not accepted by the industry, therefore, the development of the silver paste is urgently needed.