In today's printing industry, you have special craftsmanship, which means that the balance of victory is tilted towards you. So, should 3D local UV hot stamping be done after UV hot foil? Is it better to hot foil and then UV? Let's take a look at the possible undesirable consequences of these two methods:
1. Hot foil after UV
Mainly refers to the electrochemical aluminum pulling away the printing ink or varnish on the printed part after hot stamping. The main reason is that the ink on the surface of the printed product is not dried or the surface of the printed product is not properly processed by UV, which causes the surface of the printed product. , UV ink and the paper surface are not firmly bonded. Solution: After the printed product is dried, bronzing is performed. In addition, anodized aluminum with low separation force and excellent heat transfer can be selected.
2. hot foil first
Film (especially matte film) will damage the gloss of the surface of the anodized aluminum, it is not suitable to use water-soluble glue to cover the film, otherwise it will cause the surface of the anodized aluminum to become black, and it is very easy to cause the gold powder to stick to the edge of the graphic and cause the phenomenon of virtual.
After hot foil, it is dented due to pressure, and the glue is not easy to penetrate the surface of the anodized aluminum, which will easily cause the OPP to separate from the paper at the hot stamping and affect product quality. The correct process is to film and then bronzing, choose anodized aluminum that matches OPP.
Print links' digital inkjet 3D spot Varnish printing technology provide a solution on the conventional disadvantage.
Printlinks' latest ARTJET entry level digital inkjet 3D spot varnish printer use the imported special glossy varnish ink, The high adhesion and wear resistance of 3D spot UV hot foil provide high-quality protection for hot foil patterns. Due to the gloss characteristics of UV raw material resin, it can effectively improve the gloss of anodized aluminum and make the patterns more realistic At the same time, the pure and colorless imported raw materials will not affect the color change of the anodized aluminum, but also give the hot foil pattern a texture like glass.
Another feature of printlinks' 3D Varnish and foil is that it has a special 3D effect with a 3D height of 0.25mm and even more with ARTJET's high precision CCD system and repeat printing system, which is not a numerical height that can be surpassed by general post-pressing processes. As can be seen in the figure, 3D varnish and foil can indeed make the flat hot foil pattern produce a real 3D texture.
Printlinks installed its ARTJET spot UV print to most of the MGI customers in China now, helping customer as a sampleing printer before load to the MGI high production machinery. Now this printer is ready to server the oversea customers who have the same demand, delivery its value to over the world .
