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The difference between UV printing and screen printing

Date:2022/5/26 16:29:44 Hits:1781

UV is short for ultraviolet rays, in the printing process it is a way of drying ink, namely this special ink can only be cured on the surface of the printing product after UV light.Quick drying or such a drying method without absorbent surface printing is generally required to cure the ink.The UV ink can be transparent, which is our common surface light.It can also be colored, such as colored design printed on plastic  or metal products.


UV printer printing principle: UV printer uses piezoelectric inkjet printing technology, does not directly contact with the material surface, relying on the voltage inside the nozzle, the ink in the nozzle injection to the surface of the carrier.The ultraviolet light emitted by the LED lamp reacts with the light coagulant in the ink to dry the ink.

The disadvantage is that the clarity is not very high, close to the surface of the product,the ink layer has a strong particle sense, Although there are many materials which are suitable for UV printing,but the adhesion of the ink is general, such as printing on the glass surface, the UV ink on the printing product is easy to be scraped off. It indicates that the high hardness adhesion is not very good; The high adhesion of the product surface hardness is not very good.There is a professional auxiliary curing agent, we can use a little auxiliary curing agent before printing,the printing effect is better.


Screen printing is a way of printing the ink to the substrate through screen plate.Where there are pictures on the plate and pictures can leak ink, the rest of the area mesh is sealed can not leak ink, to complete the transfer of design onto the printing product .Screen printing relative to offset printing, concave printing and other ways, the accuracy is low, but the cost is also low.And because the seal can be put flat when printing, so the material or the shape of printing product is widely adaptable, such as soft textiles or thickness and uneven surface of the mobile phone case and so on.The above mentioned surface light, that is, the material that locally prints a layer of transparent light on the surface after color printing, is used with UV light oil, usually do not need to print too fine outlets, so most use a lower cost screen printing.So UV and screen printing still have a certain correlation.

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