UV printing caused by the resin plate swelling measures and maintenance

The use of UV printing inks or UV coatings may cause general printing ink rollers, blankets, or resin plates to swell. Swelling will severely peel off or surface cracks, so choose the appropriate UV special blanket and resin plate. It is very important.

In fact, many UV ink suppliers will recommend a range of suitable blanket and resin standards. For example, a nitrocellulose or nitrified material used in blankets may be compatible with oils, UV inks, or coatings. Natural rubber and polymeric ethane materials are swollen and cannot be applied to UV inks and coating oils.

Rubber blankets made of EPDM are particularly suitable for UV inks and coatings, but may not be suitable for general ink-based inks. EPDM blankets, in particular, cannot use petroleum-derived lotions, and special lotions should be purchased. In the same way, choosing the ink roller of the printing press is based on this principle. It is not always possible to alternately use UV inks and general oil inks. If the ink needs to be changed, it must be cleaned very cleanly to remove any chemicals that may remain.

Reflector

If there is not about 80% of the UV light installed on the reflector, it does not affect the printed material because of the diffusion. Therefore, the UV lamp must be installed with a reflector that focuses and focuses on the direction of the printed material. Therefore, the reflector is very important for UV printing. The important tool.

Of course, the reflector must be cleaned and maintained. It is best to maintain the same features as the new one. Some paper dust or dust attached to the reflector will affect the efficacy of the UV lamp reflection. Normally, UV lamp time is not used. The UV lamp cover should be closed to prevent dust.