PET, PVC.PP plastic box sheet, performance analysis of printed parts in the production process of plastic box

1, the flatness of the plastic sheet: if the plastic sheet is not flat, it will affect the stability of the printed material, causing the printing machine to stop, resulting in large waste and high cost.

2, the thickness of the plastic sheet: If the thickness of the plastic sheet is uneven, it will affect the stability of the printing color. The size of the dots is different because the printing machine adjusts the uniform pressure, and the sheets of different thicknesses pass through the machine. The size will be inconsistent.

3, the dyne value of the plastic box sheet: the dyne value is the surface tension of the plastic box sheet, which directly affects the firmness of the ink adhesion during printing. The test method is tested by Dyne pen, but this value can only be used. As a reference value, the actual on-board data is subject to

4, the film's snowflake point, also known as mildew, electrostatic flower, this will lead to the transparency of the plastic box window position,