In what respect is the adhesion of uv printing poor?

author: Uvink

2022-12-28

In what respect is the adhesion of uv printing poor?When uv printing is

carried out on PP, PET, PVC and other plastic sheets as well as some gold and

silver card paper, because the substrate is non-absorbent material, if the surface

treatment is not ideal, the surface can not meet the requirements of uv printing,

the printed matter will be pulled back with tape with a large area of ink phenomenon,

this situation is caused by the poor adhesion of uv ink and substrate.

In what respect is the adhesion of uv printing poor?Solution: It is suggested that

before uv printing, corona, pickling or flame treatment is carried out on the surface

of the substrate such as plastic sheet, in order to increase the surface activity of

the substrate and affinity for uv ink; On the gold and silver cardstock substrate is

recommended for substrate treatment, the general requirements of substrate

surface tension of 40×10-3N/m. Of course, you can also choose uv ink with

high adhesion to solve the problem of poor adhesion.

In what respect is the adhesion of uv printing poor?UV ink in the process of use,

need to pay attention to its performance? Mainly need to pay attention to the

following 3 aspects :uv ink curing performance, adhesion and substrate, scratch

resistance. If the above 3 aspects can meet the requirements at the same time,

uv printing can basically meet customer standards.