|Oven temperature||30 ~ 220°C(According to the material)|
|Oven length||3 ~ 48 m (According to the material)|
|Coating speed||5-50 m/min (According to the material)|
|Coating type||Comma scraper coating, veins roller coating, three-rollers coating,
|Heating tyope||Electric heating, Nature gas heating, Thermo oil heating ,|
PVC tape is extensively used in different areas,such as electrics, wires,
ducts wraps and ground warning etc. PVC Film as a substrate ,and
Solvent based natural rubber as coating adhesives. There also have
different types of PVC tape according to different usage, for
PVC tape production line, there have PVC electrical tape coating machine, pvc tape cutting machine, packing machine etc.
Substrate of PVC film. Choose the right film is very important.For instance, film
thickness, quality grade(Calcium powder content,virgin PVC
granule),tensile strength, voltage insulating grade(normally should
pass 3kv voltage testing). Anyway,find out the suitable and good
pvc film, it’s not easy.
Solvent-based rubber adhesives. adhesive formula is deemed to a secret for pvc tape manufacturing
factory. Maybe different factories have a little difference on the
formula. It largely determine the tape quality.
Solvent recycling equipment. Generally use natural rubber or synthetic rubber as solute,toluene as solvent. But toluene is expensive,it also can be recycled
using. So we can establish solvent recycling equipment ,then
collect the vaporized solvent during drying, therefore, we can save
1. Put the pvc film on the lift-type auto unwinder, and ready for
transfer to gravure coater. In addition,there have one accumulator
in the middle, it is use for nonstop running during exchange rolls
2. First gravure coater. It is used for bottom adhesive coating. Normally, pvc film
surface is smooth, it is hard to connect tightly with adhesive. So
that, there must have bottom adhesive as pre-coating.In addition,
the bottom adhesive viscosity is lower than second stage adhesives
3: Entry the first drying oven,heating the bottom adhesive. Then make it dryer,and entry to
second comma blade coater for second adhesive coating
4: Make the second adhesive coating,we also call it surface adhesive. Moreover,the coating thickness can be adjusted.
5: Drying the surface adhesive, after drying, then enter to cooling device. Cooling process is also very important, it highly affect tape
forming molecular structure.Normally, we can put 1-10℃ water into
the cooling cylinder, so that it can fast cooling.
6: Auto Rewinding. It is the last process of pvc tape coating machine.Further more,
it is the core technology for making auto rewinding. The line
whether can run 25m+/s or not, mostly depend on your rewinder
running situation. GS coater can do 30m+/min rewinder.
7: After getting the pvc rolls, pls dont cut it immediately, we
should put to curing room, let them curing 2-3 days. Then we will get more better
PVC electrical insulation tape