What are the main production processes of the midstream self-adhesive coated paper enterprises?

In the production process, the midstream self-adhesive coated paper enterprises mainly use a series of fine and professional production processes to ensure product quality and performance. These main production processes can be summarized as follows:

1. Printing process

Offset printing process: This is the most commonly used printing process in the production of self-adhesive coated paper labels. Before printing, it is necessary to make copper plates (or plates) according to the design requirements, and arrange the pattern, text, etc., in accordance with the set color and position. When printing, the ink is transferred to the coated paper through the printing plate to form an exquisite pattern and text. The offset printing process has the advantages of high printing precision, bright colors and rich layers.

Digital printing: With the development of technology, the application of digital printing in the production of self-adhesive labels is also more and more extensive. Digital printing can achieve personalized customization, small batch production and fast delivery to meet the market demand for diversification and rapid response. Digital presses can print directly from computer files to coated paper without plate making, greatly improving production efficiency and flexibility.

2. Die cutting process

Die-cutting: It is one of the key links in the production of self-adhesive coated paper labels. The die cutting process is generally carried out by a die cutting machine, and the corresponding die is made according to the shape and size of the product. With a die cutter, the coated paper is precisely cut into labels or stickers of the desired size and shape. In the process of die cutting, it is necessary to pay attention to the accuracy 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. Film coating process

Coating: is to improve the waterproof, wear-resistant, corrosion resistance and other properties of self-adhesive coated paper labels. The film is covered by transparent film material, generally using BOPP film or PET film. The laminating process requires 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. The coated label is more durable and beautiful.

4. Other post-treatment processes

Hot stamping, hot silver, hot laser: these processes can increase the visual effect and grade of the label. Through the principle of hot press transfer, the metal layer on the electrochemical aluminum and other materials is transferred to the label surface to form a special metal effect.

Variable two-dimensional code, three-dimensional screen printing drum: these processes can be customized according to customer needs. Variable two-dimensional code can achieve different two-dimensional code information on each label, convenient traceability and management; Three-dimensional screen printing drum can increase the three-dimensional and tactile effect of the label.

5. Quality control

In the whole production process, quality control is a crucial link. Enterprises need to establish a sound quality management system and testing means, strict quality testing and control of raw materials, semi-finished products and finished products to ensure that products meet customer requirements and industry standards.

In summary, the midstream self-adhesive coated paper enterprises will use a series of fine and professional production processes in the production process to ensure product quality and performance. These processes include printing, die-cutting, laminating and post-treatment processes, and each link needs to be strictly controlled and optimized to achieve the best production results.