Introduction: With the continuous improvement of consumers’ consumption concepts, tailor-made personalized products are becoming more and more popular among consumers. Water transfer technology breaks through the uneven surface limitation that cannot be printed by flat printing. After the water transfer printing, the product has a high degree of simulation, and its product addition has been doubled, and the personalized transfer printing also fully meets the consumer needs of modern people.This article is packaged by shanghai rainbow package, and I will share with you several factors that affect the color change of silk screen.
Water transfer technology is a kind of printing that uses water pressure to hydrolyze the transfer paper/plastic film with color patterns. Its biggest technical advantage is that it does not require special equipment, is not limited by media, does not require special consumables, and does not require high temperature heating, as long as there is an image input tool (scanner or digital camera), drawing tool (computer), image output tool (Inkjet printer), plus water transfer ink, water transfer paper, you can print any image on any solid object and any curved surface.
Watermark transfer
Water mark transfer is a process of completely transferring the graphics and text on the transfer paper to the surface of the substrate. It is very similar to the thermal transfer process, except that the transfer pressure depends on water pressure. It is a popular water transfer technology recently. A small area of graphic information can be transferred on the surface of the substrate, which is similar to the printing effect of the pad printing process, but the investment cost is lower, the production process is relatively simple, and it is very popular with users. The water mark transfer process does not require activation by an activator, avoids the pollution of organic solvents, and has obvious advantages in the production of handicrafts and decorations.
01 Classification
Water coating transfer
The so-called water coating transfer is to decorate the entire surface of the object, cover the original face of the workpiece, and be able to print patterns on the entire surface (three-dimensional) of the object. This is its advantage; but the disadvantage is also obvious, that is, flexibility. When the graphic carrier is completely in contact with the substrate, it is inevitable that it will be stretched and deformed. Therefore, in fact, it is difficult for the graphic to be transferred to the surface of the object to achieve the degree of fidelity.
Most of the printed graphics and texts of water transfer paper used for transfer are composed of decorative ink color blocks and simple repeating patterns, and there is no need to use fine photosensitive film for printing; water transfer films are mostly made of stretchable It is made of a good water-soluble film. The transfer film used for three-dimensional transfer is difficult to transfer and copy fine text and hierarchical images.
02Transfer material
Water transfer substrate
The water transfer substrate can be a plastic film or a water transfer paper. Many products are difficult to print directly. You can print the graphics and text on the water transfer substrate through mature printing technology, and then transfer the graphics to the substrate. Material.
1) Three-dimensional curved surface water drape film
The water drape film is printed on the surface of the water-soluble polyvinyl alcohol film using the traditional gravure printing process. It has a very high stretch rate and is easy to cover the surface of the object to achieve three-dimensional transfer. The disadvantage is that in the coating process, due to the large flexibility of the substrate, the graphics and text are easy to deform. For this reason, pictures and texts are generally designed as continuous patterns, even if the transfer is deformed, the viewing effect will not be affected. At the same time, the gravure water coating film uses water transfer ink. Compared with traditional inks, water transfer printing inks have good water resistance, and the drying method is volatilization drying.
2) Water mark transfer paper
The base material of water mark transfer paper is special paper. The base material must have stable quality, accurate size, strong adaptability to the printing environment, very small expansion rate, not easy to curl and deform, easy to print and color, and the surface adhesive layer is evenly coated. Features such as fast dehydration speed. Structurally, there is not much difference between water transfer paper and water coating transfer film, but the production process is very different. Generally speaking, water-mark transfer paper is used to produce transfer graphics and text on the surface of the substrate by screen printing or offset printing. The most popular production method is to use inkjet printers to make water-mark transfer paper. It is easy to make personalized graphics and texts according to your own preferences.
Activator
The activator is an organic mixed solvent that can quickly dissolve and destroy the polyvinyl alcohol film, but will not damage the graphic printing layer. After the activator acts on the graphic printing layer, it can activate and separate it from the polyvinyl alcohol film. Adsorbed on the surface of the substrate to achieve water transfer coating.
coating
Because the printed layer of the water-coated film has low hardness and is easily scratched, the work piece after the water-coated transfer must be sprayed with transparent paint to protect it, thereby further improving the decorative effect. The use of PV transparent varnish or UV light curing transparent varnish coating can form a matte or mirror effect.
Shanghai Rainbow Industrial Co., Ltd is the manufacturer, Shanghai rainbow package Provide one-stop cosmetic packaging.If you like our products, you can contact us,
Website: www.rainbow-pkg.com
Email: Bobby@rainbow-pkg.com
WhatsApp: +008613818823743
Post time: Nov-22-2021