Gold and silver cardboard, laser cardboard packaging printing in the past generally used offset printing synthetic ink printing, this printing process uses offset printing synthetic ink. Offset synthetic inks are oxidative drying inks, which require time to oxidize and dry. There are technical shortcomings in the production process, such as difficult to dry, sticky flowers on the printed surface, complicated auxiliary processes, large losses, and low production efficiency. Through the promotion of new technologies in recent years, gold Silver cardboard and laser cardboard are gradually using the offset printing UV printing process. This process is very popular for its excellent printing efficiency, UV ink, UV varnish, printing and drying, and simple process flow.
UV printing process requirements for offset printing
The UV printing process used for offset printing requires high printing speed. The printed matter cannot be deformed and deformed during the printing process to ensure the accuracy of multi-color overprinting. The high-speed paper collection and automatic collection are intelligent.
Technical analysis of UV equipment for offset printing
The offset printing UV ink, UV varnish printing process requires that the offset printing machine must be equipped with UV light curing machine or built-in UV light curing system and other equipment. Medium and low speed offset printing machines with 10,000 sheets / hour or less usually use UV light curing machine and other equipment to connect with the offset printing machine Supporting, the conventional UV light curing machine is usually used in the screen printing industry. The core equipment used is the UV lamp. The UV lamp used is an ordinary high-temperature low-intensity UV lamp. The UV lamp has a high luminous temperature and a slow curing speed. When using high-power UV lamps to increase the speed of light curing, the light temperature will be doubled. The heat temperature of the lighted printed matter is as high as 80 ℃ or more, which causes the gold and silver cardboard and laser cardboard to be deformed by heat and cannot adapt to the UV printing process of offset printing. Requirements, conventional UV light curing machine is generally used in the printing and drying of printed circuit boards, the printing process requirements are low, and the multi-color overprinting requirements are low. The offset screen UV printing must be equipped with intelligent automatic paper collection, low temperature and high speed UV light Solid machine and other drying equipment.
Offset UV printing process characteristics
Offset UV printing technology is a new technology. The offset UV inks and UV varnishes used are environmentally friendly water-based inks. Conventional offset inks are oil-based inks. There are big differences in printing methods. You need to be skilled in printing with this printing process. Only technicians can carry out UV printing production. Without a professional printing technician for offset printing, it is impossible to produce offset printing.
Professional supporting low-temperature high-speed UV light curing machine
The full-automatic low-temperature high-speed UV dryer developed and produced by Shantou Huanan Machinery Co., Ltd. in response to the requirements of the offset UV printing process uses imported advanced low-temperature high-intensity UV lamps and is equipped with an advanced UV lamp cooling system to control the UV light curing temperature at At room temperature about 45 ℃, light-solid drying speed of 9000 sheets / hour, it is also equipped with an intelligent automatic take-up machine to adapt to the high-speed printing of the offset printing machine, which meets the low-temperature and high-speed UV printing process requirements of offset printing. Shantou Huanan Machinery Co., Ltd. Shuanghu brand automatic offset printing low-temperature high-speed UV dryer products have been used for many years in Guangdong, Fujian, Zhejiang and other printing areas. The continuous optimization of development has now formed a series, multiple models, Multi-spec famous and high-quality products that can be professionally matched with various types of monochrome and multi-color offset presses.
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