This ink is a special type of UV varnish composed of polymeric prepolymers, photosensitive monomers (active diluents), photoinitiators, additives, etc. It is mainly used in cold transfer processes in the printing industry. This process involves curing with a cold light source using UV varnish, transferring the information layer on the PET/OPP film onto the printed material. The advantages include improving the scratch resistance, smoothness, and glossiness of the printed surface, while presenting different laser effects on the printed surface. Its curing speed is fast, and it has high smoothness, good wear resistance, and leveling properties, which meet the requirements of VOC and safety and hygiene indicators for cigarette packs.

1、 Overview
This ink is a special type of UV varnish composed of polymeric prepolymers, photosensitive monomers (active diluents), photoinitiators, additives, etc. It is mainly used in cold transfer processes in the printing industry. This process involves curing with a cold light source using UV varnish, transferring the information layer on the PET/OPP film onto the printed material. The advantages include improving the scratch resistance, smoothness, and glossiness of the printed surface, while presenting different laser effects on the printed surface. Its curing speed is fast, and it has high smoothness, good wear resistance, and leveling properties, which meet the requirements of VOC and safety and hygiene indicators for cigarette packs.

2、 Purpose
1. Can be printed on gold and silver cardboard, laser transfer paper, PET, PVC, and corona treated PP sheets.
2. Can be used for cigarette label printing.

3、 Usage method
First, the varnish is printed on the printed material through gravure printing, and then the PET/OPPO laser transfer film is attached to the uncured varnish. After UV curing, the transfer film is peeled off, so that the varnish adheres to the printed material, and the laser information on the transfer film is transferred to the printed material.

4、 Precautions
1. Due to the possible irritant effects of the chemical components in UV varnish on the skin and respiratory tract, appropriate protective equipment such as gloves, dust masks, and goggles should be worn during operation.
2. Operating UV varnish in poorly ventilated environments may cause symptoms such as dizziness and nausea. Ensure that the work area has a good ventilation system or uses appropriate exhaust devices.
3. UV varnish is a flammable chemical and should be kept away from sources of fire and high-temperature environments to prevent fires.
If using a UV curing machine for curing, it is necessary to strictly follow the equipment's instructions to ensure normal operation and avoid equipment damage or safety accidents caused by improper operation.
5. UV varnish should be stored in a cool, dry, and ventilated place, avoiding direct sunlight. The storage temperature should not be too high to avoid affecting its performance.
6. The waste of UV varnish should be disposed of in accordance with local environmental regulations and should not be discarded arbitrarily to avoid polluting the environment.
7. If the odor is caused by incomplete curing of UV varnish, the printing speed can be appropriately reduced or the light intensity of the UVLED curing machine can be increased to ensure complete curing.
8. UV irradiation light sources generally use high-pressure mercury lamps or metal halide lamps, with an output power of 80-120W/cm. UV lamps have a certain service life and should be checked and replaced in a timely manner after working for about 1000 hours. UV light may cause harm to the skin and eyes, and should be shielded to prevent UV light from shining on the human body; At the same time, eliminate the harm of ozone generated by air exposure to UV light to the human body, and pay attention to strengthening the ventilation and smoothness of the production environment.