The manufacturing process of the clear protective film tape includes glue making, coating, drying, rewinding, slitting, packaging, and the like.
Today's products require increasingly high transparency for PE protective films, and complex manufacturing processes have an impact on transparency.
First of all, the choice of raw materials is very important.
The raw material PE used for the transparent protective film tape is a crystalline material which is easily crystallized. If it is not cooled rapidly, it tends to reduce transparency and elongation at break.
The blow molding process has poor cooling effect, high crystallinity, and low film transparency.
Due to blown up, drafting, the molecular orientation is severe, resulting in low elongation at break;
The casting production has good cooling effect, low crystallinity, good transparency and low degree of orientation.
Therefore, the elongation at break is high and the retractability is good.
In order to increase the transparency of the transparent protective film tape, it is necessary to add an appropriate amount of an antifogging agent.
On the basis of the above, a transparent nucleating agent is added; and when the raw material is selected, the haze is low and the melting index is high.
Therefore, in order to improve the transparency of the transparent protective film tape, it is necessary to check the raw materials, the manufacturing process, and the process technology. The transparent protective film tape with good transparency will be more and more trusted by customers.
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