Production process and quality control of polyethylene coated paper rolls

The production process of polyethylene coated paper rolls is relatively complex, involving multiple links, and has high requirements for equipment and processes.

1. Production process

Base paper selection: Select appropriate base paper according to the product use, such as kraft paper, white cardboard, etc.

Coating: Melt the polyethylene and evenly coat it on the surface of the base paper to form a thin film.

Cooling and shaping: The coating is quickly cooled and shaped by the cooling device.

Lamination: The coated paper rolls are compounded with other materials to increase the functionality of the product.

Slitting and packaging: The paper rolls are cut into the required width according to customer requirements and packaged.

2. Quality control

Base paper quality control: Strictly control the gram weight, thickness, flatness and other indicators of the base paper.

Coating quality control: Control the thickness, uniformity, adhesion and other indicators of the coating layer.

Cooling and shaping quality control: Control the cooling speed to ensure that the coating is flat and smooth.

Finished product inspection: Perform appearance inspection and performance testing on the finished product to ensure that the product quality meets the standards.
3. Influencing factors

Equipment factors: The accuracy and stability of coating equipment directly affect product quality.
Process parameters: Coating temperature, speed, pressure and other parameters have an important impact on coating quality.
Raw material quality: The quality of base paper and polyethylene directly affects product performance.

As an important packaging material, the production process and quality control of polyethylene coated paper rolls are crucial. By continuously optimizing the production process and improving product quality, polyethylene coated paper rolls will be widely used in more fields.