One. HYBRID technology application
1. Waterborne Varnish HYBRID Technology
   Waterborne varnish HYBRID technology refers to the technology that can show both high gloss and matt gloss when printed on the same print.
   The hardware requirements of this technology are relatively high, and the operating technology and application technology are relatively simple:
   Substrate must be high gloss paper; printing equipment must be 5+1 or more; use oily matte oil in the last color group through the PS plate for local glazing, then in conjunction with high gloss water varnish on glazing color group Full version of glazing, pay attention to oily matte oil and water-based high-gloss opaque oil is a special varnish, non-plain varnish; by adjusting the coating amount of oily matte oil to control the contrast effect of light and matte;
2.UV Varnish HYBRID Technology
UV Varnish HYBRID technology is the use of UV Varnish for a printing that can produce the following two kinds of printing technology: one: sticking and high light effect; two: matt and high light effect; UV Varnish HYBRID technology requirements for printing hardware Similar to HYBRID technology for waterborne varnish, it needs to be printed on high gloss paper, and printing equipment with 5+1 or more is needed at the same time. The operation is similar, but the drying method is UV curing and drying, and the hardware requirements are higher; the adjustment of dendrite and highlight contrast The effect and the contrast effect of adjusting the matt to high light are all achieved by adjusting the ink amount of the oily UV varnish. Please pay attention to the problem of the drying of the UV varnish. In order to ensure the UV varnish drying, the printing speed can be appropriately reduced. Determined to be dry; at the same time, please pay attention to the effect of sticking and high-gloss sticking effect oily varnish and high-gloss UV varnish, which are special varnish used together; matt varnish and high-gloss matte finish and high-gloss UV Varnish is a special varnish used in conjunction with
   2. Suede varnish and metallic varnish
   For the characteristics of modern printing, environmental protection and anti-counterfeit effectiveness, based on the water-based gloss oil and added a number of special effects of water-based Varnish, which has a high use value is the water-based suede Varnish and Varnish.
The water-based suede varnish is an effect that the aqueous varnish system exhibits suede during the drying process after coating. The strength of the suede effect is related to the amount of varnish on the varnish, if the ceramic anilox roller is used. Light system, through the adjustment of the number of lines of the anilox roller to achieve the purpose of changing the amount of oil, in order to enhance or weaken the suede effect; water-based metal varnish is the use of water-based coating system after the coating surface after the metal color, There are many kinds of colors, including silver, bright gold, bronze and other colors, the strength of the metal color is mainly related to the amount of light, coating the greater the amount of metal the stronger the effect.
III . Application of MFX Technology
MFX technology is a kind of complex metal color that can print a variety of color metal effects, including transitional levels of metal color, using ordinary five-color printing, ordinary printing methods are generally used for the printing of one by one for spot colors of various metal colors. Solved, but not ideal for the level of transition printing effect, the use of MFX technology to print metal spot color effect is ideal.
   The printing substrate requires a high-gloss substrate, such as a coated paper substrate; the five-color inks are silver, yellow, magenta, cyan, and black. Among them, the silver ink requires high brightness and has a strong surface-binding ability; the four-color ink needs high brightness and saturation. And transparency; color sequence is silver, black, blue, red, yellow, wet and wet printing, so that the metal color transition effect and fluidity effect is better; printing speed 5000-7000 / h.
   4. Pearlescent application technology
   Pearlescent materials, as high-brightness materials for increasing the added value of products, are currently used in the printing industry. They can improve the vividness of the color of the products, and can also change the color rendering effect. They are new materials for packaging, printing, and color printing.
   Pearlescent materials are mainly divided into the following categories:
1. Pearl powder: pearl powder is divided into ordinary powdered pearl material and pearl ball with soft resin dispersion, the main colors are silver, bright gold, metallic, rainbow interference color and chameleon series, etc., which pearl powder according to the direction of use And the use of different particle size of the distinction, the smaller the particle size, the stronger the hiding power of pearl powder; the larger the particle size, the stronger the gloss of the pearl powder; in the printing industry, the particle size has stricter requirements, small particle size can be used For offset printing, larger particle sizes can be used for flexo and gravure and have better results.
2. Pearl sizing: Pearlescent sizing is a kind of high viscosity viscous pearlescent material. It is suitable for mixing with offset printing ink. It has excellent hiding power and good gloss. It is suitable for offset printing.
   In the use of pearlescent materials, there are the following methods:
1. In offset printing, pearlite powder with smaller particle size is selected to be mixed with printing ink after being mixed in a certain proportion; or water-based and UV coating system is used to add a certain proportion of pearl powder to coating oil for polishing. Coating, the effect is better; pearl pulp and offset printing ink mixed by a certain ratio printing can greatly improve the ink brightness and Zhu Guang effect;
2. Intaglio printing and flexographic printing use the pearl powder with the corresponding particle size of the printing plate and the ink to be mixed;
3. Pearlescent effect is related to the bearing capacity and mixing ratio of the ink to pearlescent;
   V. Alcohol free (IPA) fountain solution
   In order to reduce the amount of alcohol in print production and improve the printing quality, the use of alcohol-free fountain solution has become a trend. In response to this situation, a new alcohol-free fountain solution from VARN has solved this problem.
   The amount of fountain solution added: 3-5%; Isopropyl alcohol added amount: 0-6%; depending on the amount of fountain solution added and the method of printing on the water, the production process does not need to continue to add; in the use of alcohol-free dampening The liquid should pay attention to the compatibility and operation habits of the fountain system for the fountain solution. It is recommended that alcohol be reduced first, and after a certain period of time, alcohol-free operation should be performed again; when using an alcohol-free fountain solution, pay attention to the original layout of the printing machine. The water rollers contain hydrophilic substances and are water rollers that can directly use an alcohol-free dampening solution. However, if the non-original water rollers are replaced without containing hydrophilic substances, the use of alcohol-free fountain solution will be affected.