LED UV curing lamp

Advantages of UVLED cold light source curing machine used in heat - shrinkable
label film printing


The application of [UVLED cold light source curing machine] is very extensive.
Its characteristics such as high efficiency, environmental friendliness, and
low energy consumption are highly welcomed by customers. In fact, the UVLED
cold light source curing machine also has an important feature of low thermal
effect and no radiation. It is precisely because of the low thermal effect of
the UVLED cold light source that many inks have a special preference for it.
Now, I will take a label printing technology that is relatively sensitive to
heat as an example to illustrate.

Advantages in the application of heat - shrinkable label film printing

Heat - shrinkable film labels are thin - film labels printed on plastic films
or plastic pipes using special inks. During the label - pasting process, when
heated (around 70℃), the shrinkable labels will quickly shrink along the outer
contour of the container and adhere closely to the container surface. Heat -
shrinkable film labels mainly include shrink - sleeve labels and shrink - wrap
labels. Shrink - sleeve labels are tubular labels made of heat - shrinkable
films as the base material after printing. It has the characteristic of being
easy to use and is extremely suitable for irregular - shaped containers.

Heat - shrinkable film labels are a part of the label market. Currently, they
are in a stage of rapid growth, with the market share continuously expanding.
The annual growth rate is expected to be around 15%, which is much higher than
the annual growth rate of about 5% in the ordinary label market. They have
great development potential and have become a highlight in the label printing
industry. It is predicted that the domestic heat - shrinkable film market will
grow at a rate of over 20% in the next five years.

The production of heat - shrinkable film labels has relatively high
requirements for process technology. For ordinary water - based and solvent -
based inks, if the drying temperature is too high, the material will undergo
thermal shrinkage; if the temperature is too low, the ink will not dry
thoroughly. Therefore, the process is quite complex and the reject rate is
relatively high. However, for the uvled cold light source, under the action of
ultraviolet energy, macromolecular substances form a network - like cross -
link in an instant, the ink cures rapidly, and it has no impact on the
temperature of the printing material. The unique cold - curing system is very
suitable for the production of heat - sensitive material labels. Thus, the UV
light - curing technology fundamentally solves the problem that heat -
shrinkable film labels are afraid of heat.

The UVLED cold light source curing machine dries the printing ink. Pure
ultraviolet drying generates almost no heat and also has many benefits to our
environment. Under the action of energy, macromolecular substances form a
network - like cross - link in an instant, the ink cures rapidly, and it has no
impact on the temperature of the printing material. The unique cold - curing
system is very suitable for the production of heat - sensitive material labels.
Thus, the UV light - curing technology fundamentally solves the problem that
heat - shrinkable film labels are afraid of heat.

Click to Enlarge