Briefly describe the seven characteristics of UV ink

Introduction: UV inks are currently considered environmentally friendly, green, and sustainable inks in the printing industry.
Therefore, UV inks play a very important role in the UV industry.
This article briefly describes the seven characteristics of UV inks, and the content is for your friends' reference:

Principle of UV curing

Ultraviolet (Ultra Violet), referred to as UV, refers to light with a wavelength of 200 to 400 nm, which is lower than visible light.

The main products of UV curing are coatings, inks, adhesives and other com" href="http://">coatings online coatingol.
com .

The curing of UV curing system is essentially a photochemical reaction process based on photochemical theory.
To put it simply, the photoinitiator in the ink absorbs ultraviolet light of a specific wavelength and excites it into an excited state to form an active group that participates in the reaction.
These active groups initiate the polymerization of prepolymers and dilute monomers to undergo charge transfer to form complexes, which are cross-linked and polymerized in a short time to form a polymer with a three-dimensional network structure, so that the cured product has a certain degree of Hardness and wear resistance.

01fast curing speed

The drying time of UV ink is only a few tenths to a few seconds, the dot enlargement is small, the ink is almost non-permeable, the ink consumption is small, and the color strength, clarity and stability of the printed matter are significantly better than ordinary offset inks.

02 has good adhesion fastness

A wide range of printing materials.

Generally, many non-absorbent materials such as gold and silver cardboard, film, laser paper, synthetic paper, metal foil, plastics, etc.
can basically use the UV printing process, which solves the problem of ordinary offset printing inks adhering to non-absorbent materials.

03 Moderately good printing

UV ink has fine particles, high color strength, stable viscosity, high imprinted solid content, good dot reproduction, and full and bright color.

It is suitable for packaging products that use spot colors as one of the anti-counterfeiting signs.

Printed ink film has high brightness and surface strength, has excellent friction resistance, scratch resistance, chemical resistance and heat resistance.
It is suitable for packaging printing and printing that require functionality, durability, and outstanding visual effects.
Book wrapping.

04Long standby time, no need to clean

UV ink will not be cured without ultraviolet light, and will not dry on the ink roller during standby during printing.

This eliminates the need to clean the ink path of traditional offset inks when the downtime is long, and reduces the organic content of the printing operation.
The amount of solvent used improves the air quality of the working environment.

In the standby mode, only need to shield light and dust, which not only reduces the waste of ink and the consumption of organic solvents, but also reduces the workload of operators, saves time and improves production efficiency.

05Meet environmental protection requirements

Because it does not use solvents and has a solid content close to 100%, UV inks do not emit organic solvents and other pollutants into the environment during curing and drying, which can meet VOC emission regulations, reduce atmospheric pollution, and reduce harmful aerosols to operators hurt.

06Suitable for printing on heat-sensitive substrates

UVLED light source is a kind of cold light source that hardly produces thermal effect.

It will not affect the substrates with strong heat sensitivity.

07Economy

Compared with traditional offset printing inks, in addition to low energy consumption, it can also be cured instantly.

Fast printing improves production efficiency and expands production capacity.