How to control the quality of self-adhesive copper plate label paper in the production process?

Controlling the quality of self-adhesive label paper in the production process is a comprehensive task, involving raw material selection, equipment configuration, process control and finished product testing. Here are some key controls:

First, raw material selection

1.Self-adhesive material: Select high-quality, physical and chemical indicators are qualified self-adhesive material. Focus on the surface gloss, color consistency, density uniformity, coating strength and so on, these indicators directly affect the printing effect and processing performance.

2.Ink: Select the appropriate ink according to the type of adhesive material (such as paper, aluminum foil, film). Ensure that the quality, color and wetting of the substrate (adhesion fastness) of the ink meet the requirements. At the same time, pay attention to the use of ink life, avoid the use of expired ink.

Second, equipment configuration and regulation

1.Printing equipment: The use of advanced printing equipment, such as offset press, to ensure printing accuracy and stability. Perform regular maintenance and maintenance on the equipment to keep the equipment in good running condition.

2.Die-cutting equipment: Die-cutting is an important link in the production of self-adhesive labels, it is necessary to choose a die-cutting machine with high precision, and make the corresponding die according to the shape and size of the product. In the die cutting process, pay attention to the control of the precision of the die and the quality of the coated paper to ensure the accuracy of the cutting and the quality of the finished product.

3.Laminating equipment: For self-adhesive labels that need to be coated, choose the appropriate laminating machine and laminating material (such as BOPP film, PET film). In the laminating process, pay attention to the adjustment of the laminating machine and the control of the laminating pressure to ensure the uniformity and quality of the laminating film.

Third, process control

1.Printing process: In the printing process, strictly control the color and quantity of ink to avoid color deviation and color difference. At the same time, pay attention to the adjustment of printing pressure and speed to ensure that the printing effect is stable.

2.Die cutting process: In the process of die cutting, keep the blade sharp and clean to avoid burring and paper scraps. At the same time, the die cutting pressure and speed are controlled to ensure the accuracy and consistency of the die cutting.

3.Coating process: Before coating, ensure that the surface of the self-adhesive label is clean and free of impurities. When the film is coated, pay attention to controlling the temperature and pressure of the film to avoid bubbles and wrinkles.

Fourth, finished product testing

1.Appearance quality: Check that the surface of the self-adhesive label is smooth, free from wrinkles, damage, and stains. At the same time, observe whether the color is uniform, no color difference, color spots and other phenomena.

2.Physical properties: Test whether the thickness, viscosity, tearing strength and other physical properties of the self-adhesive label paper meet the relevant national standards. In particular, the viscosity test ensures that the label can be firmly attached to various surfaces within the specified time.

3.Printing accuracy: Use professional testing equipment to test the printing accuracy of the self-adhesive label to ensure that the error of the printed matter is less than the specified value.

4.Special performance test: According to the use and needs of the self-adhesive label, special performance test such as heat resistance, washable resistance, cold resistance, water resistance, weather resistance, flame retardant.

Fifth, continuous improvement and tracking

1.Collect feedback: Regularly collect customers' feedback on self-adhesive labels to understand the problems and improvement needs of products in the process of use.

2.Data analysis: Statistical analysis of the data in the production process, to find out the key factors affecting product quality, and develop the corresponding improvement measures.

3.Technological innovation: pay attention to industry dynamics and technological development, introduce new technologies, new equipment and new materials, and constantly improve the production quality and efficiency of self-adhesive labels.

In summary, the control of the quality of the production process of self-adhesive copper plate label paper needs to start from many aspects such as raw material selection, equipment configuration, process control and finished product testing, and constantly improve product quality through continuous improvement and tracking feedback mechanism.