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VastraJet K2
10. GLUE COATING
GLUE IMPLEMENTATION
Glue is composed of three different chemicals and two solvents.
Chemicals
:
1. Prima
: It is used as a primitive
coat, for smoothening the belt
surface. This is to be done only
when the previous glue layers have
been washed completely.
2. Therma
: It is used for an
intermediate coat, for activating
and deactivating the glue according
to the temperature variation.
3. Perma
: It is the final glue coat, to
make the belt sticky for the fabric.
Solvent
:
Cleantek
: This liquid solution is used for the
renewing/refreshing the tackiness of the Perma adhesive.
In digital printing, the adhesive film must be even, thin and
hard (to maintain accurate distance in between print head
and fabric). The Cleantek removes foreign elements, like
dust and micro fibers, from the top layer, hence enhancing
the adhesion property of the Perma. If there is no
improvement using the Cleantek, it means it’s time for a
coat of the Perma.
Solvtek: This is used either to dilute the adhesives,
or to complete removal of the all adhesive layers.
The following are the two main reasons for
removing all the glue layers:
•
When the thickness of the adhesive layer
goes on increasing due to multiple coat of
the Perma.
•
When the glue layer feels smudgy or
groovy (in terms of evenness).
Stages of Glue (Adhesive) Process
Stage 1:
Prima coat
Stage 2:
Therma coat
Stage 3:
Perma coat
An interval of 4hrs is required for the glue to set and dry. After each glue coat, run the glue cycle for 50 minutes with
glue heater ON. After final coat of Perma, printing can be started. The third stage is generally a repetitive process,
repetition depending on the frequency of printing hours. And when the glue coats get uneven or once in 2-3 months,
whole process has to be repeated after removing existing Glue layers.
Note
: Average consumption for the Cleantek solvent is 500ml for one time.
Approximate consumption of chemicals for a year:
•
Prima:
Approx. 2 Ltrs
•
Therma:
Approx. 2 Ltrs
•
Perma:
Approx. 5 Ltrs
•
Cleantek:
Approx. 4 Ltrs
•
Solvtek :
Approx. 10 Ltrs
Note
: Actual consumption depends on the work load, fabric type, and the maintenance. Generally, shelf life for these
chemicals is approx. 4 years.
