The hottest talk about water-based varnish hybrid

Talk about: water based varnish hybrid technology

I Hyperid technology application

water based varnish hyperid technology

water based varnish hyperid technology refers to the technology that can present two glazing effects of high gloss and matte on the same print at one time

the hardware requirements of this technology are relatively high, and the operation technology and application technology are relatively simple:

(1) the printing material must be high gloss paper

(2) the printing equipment must be 5+1 or above

(3) instead of using oily matte oil with zigzag yield strength, partially polish the last color group with PS plate, and then polish the full plate with high gloss water-based gloss oil on the glazing color group. Note that oily matte oil and water-based gloss oil are relatively special gloss oils, not ordinary gloss oils

(4) control the contrast effect of bright and matte by adjusting the coating amount of oily matte oil

gloss hyperid technology

gloss hyperid technology is a printing technology that uses UV gloss for one printing, which can produce the following two effects: branch pattern and highlight effect; Matte and highlight effects

(1) the requirements of UV varnish hyperid technology on printing hardware are similar to that of water-based varnish hyperid technology, which requires printing on high gloss paper and more than 5+1 printing equipment. The operation is similar, but the drying method is UV curing drying, and the hardware requirements are higher

(2) it is very troublesome to adjust the contrast effect of twig and highlight and the process between them. This is a user's process, and you have to pay a certain amount of money to adjust the contrast effect of matte on highlight, which is completed by adjusting the inking amount of oily UV varnish. Please pay attention to the drying problem of UV varnish. In order to ensure the drying of UV varnish, the printing speed can be appropriately reduced, and the specific speed depends on the drying condition

(3) at the same time, please note that the branching effect that completes the branching and highlight effect, oily varnish and high gloss UV varnish are special gloss used together; The matte oil and highlight UV oil that complete the matte and highlight effects are special gloss oils used together

II Suede varnish and metal varnish

in view of the characteristics of modern printing, environmental protection and anti-counterfeiting effectiveness, some special effects of water-based varnish are added on the basis of water-based varnish, among which water-based suede varnish and metal varnish have high use value

water based suede polish is the effect of using water-based polishing system to present as suede in the drying process after polishing and coating. The strength of suede effect is related to the amount of polish. If using ceramic textured roller polishing system, the number of threads of textured roller is adjusted to change the amount of grease, so as to enhance or weaken the effect of suede

water based metal varnish uses a water-based glazing system to present metal color on the surface after glazing and coating. There are many colors, including silver, bright gold, bronze gold and other colors. The strength of its metal color is mainly related to the amount of glazing. The greater the amount of glazing and coating, the stronger the metal effect

III MFX technology application

technology is a kind of common five-color printing, which can print a variety of color metal effects, including complex metal colors such as transition layers of metal colors. For various metal colors, the common printing method generally adopts spot color ink to print one by one, but the effect of hierarchical transition printing is not ideal, and the effect of using MFX technology to print metal spot color is very ideal

(1) printing substrate requires high brightness substrate, such as coated paper and other substrates

(2) five color inks are silver, yellow, magenta, cyan and black, of which silver ink requires high brightness and strong surface bonding ability; Four color inks need high brightness, saturation and transparency

(3) the color sequence is silver, black, blue, red and yellow, which is printed by wet pressing, so that the transition effect and fluidity effect of metal color are better

(4) printing speed sheet/hour

IV Pearlescent application technology

pearlescent material, as a high brightness material with uniform welding package and high product added value, has a good effect in the printing industry at present. It can improve the bright color of products and change the color rendering effect. It is a new material for packaging printing and color printing

pearlescent materials are mainly divided into the following categories:

pearlescent powder: pearlescent powder is also divided into ordinary powdery pearlescent materials and pearlescent balls dispersed with soft resin. The colors mainly include silver, bright gold, metallic color, rainbow interference color and chameleon series. Among them, pearlescent powder has different particle sizes according to the direction and effect of use. The smaller the particle size, the stronger the covering power of pearlescent powder; The larger the particle size, the stronger the gloss of pearlescent powder; In the printing industry, there are strict requirements for particle size. Small particle size can be used for offset printing, and larger particle size can be used for flexo printing and gravure printing, with better results

pearlescent paste: pearlescent paste is a high viscosity pearlescent material, which is more suitable for mixing with offset printing ink. It has excellent hiding power and good gloss, and is suitable for offset printing

in terms of the use of pearlescent materials, there are the following methods:

in offset printing, pearlescent powder with small particle size is selected and mixed with printing ink in a certain proportion for printing; Or use water-based and UV glazing system to add a certain proportion of pearlescent powder to the glazing oil for glazing and coating, and the effect is better; Printing with a certain proportion of pearlescent paste and offset ink can greatly improve the brightness of the ink and the ink gloss effect

intaglio and flexographic printing use pearlescent powder with the corresponding particle size of the printing plate mixed with ink

the 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 printing production and improve printing quality, the use of alcohol free fountain solution has become a trend. In view of this situation, a new alcohol free fountain solution from Varn solves this problem

(1) addition of fountain solution:%

(2) isopropanol addition:%; Shirun edition machine is a high-precision, multi-purpose data experiment machine that stops mechanical property testing of metal or non-metal data. The addition amount of machine fluid is determined by the water filling method of the printing machine, and it does not need to be added continuously in the production process

(3) when using alcohol free fountain solution, attention should be paid to the adaptability and operating habits of the water supply system to the fountain solution. It is recommended to reduce alcohol first, and then operate alcohol free after a period of time

when using alcohol free fountain solution, pay attention to that the original water roller of the printing machine contains hydrophilic substances, which is a water roller that can directly use alcohol free fountain solution. However, if the non original water roller is replaced, it does not contain hydrophilic substances, which will affect the use of alcohol free fountain solution