What is the technical difficulty of BOPP color synthetic paper production?

The technical difficulty of the production of BOPP color synthetic paper is mainly reflected in the following aspects:

1. Selection and ratio of raw materials

Raw material selection: The main raw material of BOPP color synthetic paper is polypropylene (PP), but different types of PP have differences in performance, such as isometric, molecular weight distribution, etc., which will affect the performance of the final product. Therefore, the selection of suitable raw materials is the key to the production of high-quality BOPP color synthetic paper.

Ratio control: In the production process, it is necessary to accurately control the ratio of various raw materials to ensure the stable performance of the product. Different ratio will affect the tensile strength, elongation at break, thermal shrinkage and other performance indicators of the product.

2. Production process control

Extrusion process: The temperature, pressure, speed and other parameters of the extruder need to be controlled during the extrusion process to ensure that the raw materials can be fully plasticized and uniformly extruded. Too high temperature will lead to degradation of raw materials, and too low temperature will affect the extrusion effect.

Drawing process: The production of BOPP color synthetic paper needs to go through the bidirectional drawing (longitudinal and transverse) process, and the drawing process needs to accurately control the drawing ratio, drawing speed, drawing temperature and other parameters. The control of these parameters directly affects the thickness uniformity and mechanical properties of the product.

Cooling and shaping: The stretched film needs to be cooled and shaped to ensure the dimensional stability and performance consistency of the product. The control of cooling speed, setting temperature and other parameters is also difficult in the production process.

3. Color control and printing process

Color control: Color control of BOPP color synthetic paper is an important part of the production process. Precise control of the type, amount and mixing of pigments is required to ensure that the color of the product is bright, uniform and meets customer requirements.

Printing process: Part of the BOPP color synthetic paper needs to be printed. The printing process needs to control the type of ink, viscosity, drying speed and other parameters to ensure that the printing effect is good and does not affect the other properties of the product.

4. Equipment requirements and maintenance

High equipment requirements: The production of BOPP color synthetic paper requires advanced production equipment, such as extruders, drawing machines, cooling and shaping devices. These devices need to have high accuracy, high stability and easy maintenance.

Equipment maintenance is difficult: Because the production process involves multiple links and a variety of equipment, the maintenance and maintenance of equipment is also an important and complex work. It is necessary to check, clean and maintain the equipment regularly to ensure the normal operation of the equipment and the stable production of the product.

5. Quality control and testing

Strict quality control: BOPP color synthetic paper as a high-grade packaging material, the quality control requirements of the product are very strict. In the production process, raw materials, semi-finished products and finished products need to be inspected and tested several times to ensure that the performance indicators of the products meet the standard requirements.

Complex detection means: a variety of testing equipment and instruments need to be used in the testing process, such as tensile testing machines, thermal shrinkage meters, gloss meters, etc. The use and operation of these devices requires certain professional knowledge and skills.

In summary, the technical difficulty of the production of BOPP color synthetic paper is mainly reflected in the selection and ratio of raw materials, production process control, color control and printing process, equipment requirements and maintenance, and quality control and testing. In order to produce high-quality BOPP color synthetic paper, enterprises need to have advanced production equipment, exquisite production technology and strict quality control system.