How to control the quality during the production of hanging tag copperplate paper?

Quality control is crucial in the production of hang tag copperplate paper. Here are some key quality control measures:

1、 Raw material control

Pulp quality: Choose high-quality pulp as raw material to ensure the toughness and printing effect of the paper. The quality of pulp directly affects the fiber structure and physical properties of paper, thereby affecting the quality of printed materials.

Coating quality: The coating of copperplate paper should have good printability and vivid color. Choose high-quality coatings and strictly control the ratio and application amount of coatings to ensure the color effect and clarity of printed materials.

2、 Production process control

Papermaking process: In the papermaking process, it is necessary to strictly control the process parameters of beating, sizing, filling, and papermaking to ensure the uniformity and stability of the paper. Especially in the papermaking process, it is necessary to control the concentration, flow rate, and mesh speed of the pulp in order to obtain high-quality paper.

Coating process: Coating is a crucial step in the production of copperplate paper. It is necessary to accurately control the coating amount, coating speed, and coating uniformity to ensure that the coating layer thickness on the paper surface is consistent, the colors are bright, and it has good printing adaptability.

Drying process: During the drying process, the drying temperature and time should be controlled to ensure that the coating layer is completely dry and not excessively dry, which may cause paper deformation or cracking.

3、 Printing process control

Design layout: When designing layout, it is necessary to ensure that the position, size, color, etc. of patterns and text meet the design requirements, and consider factors such as the printing accuracy of the printing machine and the flexibility of the paper.

Plate making quality: During the plate making process, it is necessary to strictly control the accuracy and clarity of the printing plate to ensure that it is consistent with the design draft. At the same time, it is necessary to regularly inspect and replace worn printing plates to ensure the quality of printed materials.

Printing parameters: During the printing process, it is necessary to strictly control the amount of ink, printing pressure, printing speed, and other parameters. The amount of ink used should be moderate, too much can lead to ink accumulation and dirtiness, while too little can result in incomplete color. The printing pressure should be uniform and appropriate, as too much or too little can affect the clarity and quality of the printed material. The printing speed should match the drying speed of the ink and the elasticity of the paper to ensure the stability and consistency of the printed product.

4、 Finished product inspection

Appearance inspection: Conduct appearance inspection on the finished product, checking the flatness, color uniformity, printing clarity, etc. of the paper. If there are any non-conforming products, they should be promptly removed and the reasons analyzed.

Performance testing: Conduct performance tests on finished products, such as wear resistance, waterproofing, glossiness, etc. These tests can reflect the physical properties of paper and the quality level of printed materials.

5、 Quality Control System

Establish a quality management system: Develop comprehensive quality control standards and processes, clarify quality requirements and division of responsibilities for each link.

Training employees: Regularly provide quality awareness and skill training to employees to improve their quality awareness and operational skills.

Continuous improvement: Through quality data analysis, customer feedback, and other methods, timely identify and solve quality problems, and continuously improve production processes and quality control measures.

In summary, controlling the production quality of hang tag copperplate paper requires starting from multiple aspects such as raw material selection, production process control, printing process control, finished product inspection, and quality control system. Only by comprehensively and meticulously controlling the quality of each link can we ensure that the quality and performance of the final product meet the design requirements.