How to distinguish whether the stretch film is made of new material or old material

There are many kinds of stretch film on the market, and the quality is uneven. The stretch wrapping film manufacturer explains how to distinguish whether the wrapping film is made of new material or recycled material.

1. The quality of the returned material is unstable, with many impurities and other raw materials.

2. The quality of the returned material is poor, and the tensile strength and toughness are not good.

3. The color of the returned material is generally not white, and the color is dark.

The difference between the new material and the returned material makes the product

1. The products made from the returned materials are unstable, and the products made from each batch of materials cannot be guaranteed to be the same;

2. The mechanical properties of the material in the physical properties of the returned material are worse than that of the new material;

3. The color of the finished product made of the new material is generally brighter, brighter, and the gloss is better, while the surface gloss of the old material is relatively poor, the color of the new material is bright, there is no black spot, the color of the returned material is a bit dead, and there is a peculiar smell .

When you get a plastic product, first look at the color. The color of the new material is bright, fresh and bright, and the barrel is translucent.

(1) The color is dark, the transmittance is good, and there are many black spots;

(2) Bright colors, opaque (with a large amount of titanium dioxide), and a small amount of black spots on the surface.

The color of the new material is generally light and bright, and the color of the returned material is generally dark and thick.