The UV offset press is an offset press that uses UV ink for printing. The UV offset printing machine needs to be installed with UV curing machine or built-in UV curing system and other equipment. Due to the particularity of UV inks, the corresponding parts on the printing press also need to be modified accordingly to meet the needs of UV curing. Cooling device: Since the UV curing machine device is a heat source, the cooling device cannot be ignored. The performance of the cooling device corresponding to the UV curing machine and other devices must also meet the requirements. The better the performance, the less the substrate is heated, and the smaller the deformation, the more conducive to printing and registration. Ink rollers and blankets: Due to their strong corrosiveness, offset UV inks may cause ordinary printing ink rollers and blankets to swell, affecting the stability of printing pressure. In severe cases, peeling or surface cracking may also occur. Therefore, UV offset printing has extremely high requirements for rubber rollers and blankets. The choice of ink rollers and blankets must be compatible with offset UV inks. Note the following Ink roller: The ink roller needs to be replaced with UV special or dual-purpose. Generally, rubber rollers made of EPDM rubber (EPDM) or silicone rubber are used, and the hardness is preferably 40 Shore. the above. Blanket: The blanket needs to be replaced with a special or dual-purpose UV. The following two types of blankets are available. Special blanket for UV: Anti-UV resin component is added to the mixture of the blanket, which can resist UV light irradiation, and the blanket is not easy to powder. UV self-adhesive rubber cloth: The rubber surface contains anti-UV resin, which can prolong the life when used in UV printing. [next] Grippers: Under the irradiation of UV light, the ordinary grinders will be deformed by heat, which will affect the registration and printing. Therefore, the gripper on the unit with UV curing system must be replaced with a gripper for UV. Ordinary offset printing units have less strict requirements for gripping paper teeth. Special printing plate: The printing plate can be selected for UV special or combined use, and can also be obtained by heat treatment of the ordinary printing plate. The ordinary PS plate cooked in accordance with the conventional method requires a baking plate for 10 to 15 minutes (temperature 250.C). The CTP version also requires a baking version of 10 to 15 minutes (temperature 250 ° C). Fountain solution: The fountain solution should choose a fountain solution that does not contain too much gum arabic. Ink cleaning agent: The ink cleaning agent should be selected for UV printing. The use of ordinary ink cleaning agent will damage the UV printing plate. The investment cost of UV offset printing machine is higher than that of ordinary offset printing equipment; offset printing UV has a wider application range than ordinary offset printing, the market is scattered, and the market development investment is large. Therefore, the market starts slowly and the investment risk is greater. In addition, the cost of offset UV ink is 4 to 5 times that of traditional offset ink, and the cost of printing materials is also very high. Therefore, production management, process technology, and cost control in printing production need to be more rigorous. Once the loss of materials is not well controlled The proportion will cause the printing cost to be much higher than ordinary offset printing. Therefore, packaging and printing companies intending to enter the offset UV market should choose offset UV equipment or modify existing offset presses according to their own situations, and in the printing process, make good records and master the offset UV process well in order to calm down. To the increasingly competitive market. the pp case use to pack the cd-r,dvd-r and others ,it is ok and good pp case ,pp box ,pp cover Shantou Yupeng Cdian Industry Co.LTD , https://www.headsetswireless.com