Production process of stretch film

Step 1: suction. Pour the raw materials into a container, and then use the machine tube to suck them into the tape casting machine. During this process, there should be no other particles or larger solids in the poured container, so as to ensure that the raw materials are clean and prevent other particles on the produced stretch film from causing unqualified products.

Step 2: tape casting. The raw materials are sucked into the machine and then processed in the tape casting machine. The temperature here is controlled to a certain extent to prevent the qualified stretching film of the production department from being cooled and stretched by the chilling roll. This is the most important step in the production process of the stretch film. This step determines whether the stretch film produced has the characteristics of strong tensile property, strong prick resistance and strong retraction.

Step 3: Master roll, roll up the stretch wound film produced by the tape casting machine to form a large master roll.

Step 4: Rewinding is mainly carried out according to the customer's requirements. Generally, the width has been determined, and it is a conventional specification. After rewinding according to the customer's requirements, the general weight is 3kg, 5kg, etc. These are hand wound films, and can also be wound with film, which is more than 10kg.

The fifth step is packaging. The size of the box is determined according to the weight and size of the stretch film required by the customer. During the packaging process, the box should be handled with care to prevent the head of the stretch film from being damaged by impact, so that it will break when pulled in use.