The production process of self-adhesive coated paper involves a number of links, mainly including preparation, printing, die-cutting, laminating and other steps. The following is the detailed production process:
First, preparation
1.Material preparation: Prepare coated paper, self-adhesive backing paper and necessary printing inks and adhesives. Coated paper as a surface material, it is necessary to choose high-quality paper suitable for printing and die-cutting.
2.Design and plate making: design label patterns, text and other content according to customer needs, and use design software or graphic editing software to produce electronic manuscripts. Then, the electronic manuscript is produced into a printing plate by CTP platemaking technology or traditional platemaking technology. CTP plate-making technology is made by computer directly into printing PS plate material through CTP machine, which is faster and more stable than traditional plate-making.
Second, printing
1.Machine printing: The printing plate is installed on the offset press, and the ink and layout moisture are adjusted to ensure the printing quality. Use volatile drying inks suitable for coated paper for printing.
2.Quality control: In the printing process, pay attention to the color and quantity control of the ink to avoid color deviation and color difference. At the same time, pay attention to the balance of offset ink and water, control the moisture size of the printed page, and ensure the finish and non-stick dirty of the printed matter.
Third, die cutting
1.Making knife die: Make the corresponding knife die according to the shape and size of the product. The precision of the die directly affects the die cutting effect and the molding quality of the product.
2.Die-cutting molding: Put the printed coated paper adhesive into the die-cutting machine, and cut the coated paper into a label or sticker of the required size and shape through the die-cutting machine. In the die cutting process, 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.
Fourth, Laminating
1.Select the coating material: according to the characteristics of the product and the use of the environment to choose the appropriate coating material, such as BOPP film or PET film. The choice of coated material directly affects the waterproof, wear-resistant, corrosion-resistant properties of the label.
2.Coating treatment: the transparent film material is pasted to the surface of the printed matter through the laminating machine. 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. The coated label surface is smoother, brighter, and has good protective performance.
Fifth, follow-up treatment
1.Cutting and packaging: Cut the coated labels according to customer requirements, and pack them for delivery. During the cutting process, ensure the uniformity and flatness of the label.
2.Quality inspection: Quality inspection of the finished product to ensure that the printing quality, die-cutting accuracy and laminating effect of the label meet customer requirements.
Sum up
The production process of self-adhesive coated paper is a complex and fine process, which requires the close cooperation of all links and strict quality control. Through advanced printing equipment, precise die-cutting technology and high-quality laminating treatment, we can produce beautiful and durable self-adhesive coated paper labels that meet customer needs. These labels are widely used in packaging, food, medicine, cosmetics and other fields, and play an important role in product identification and publicity.