What are the improvements in the production process of BOPP color thermal synthetic paper?

The production process of BOPP color thermal synthetic paper is constantly progressing and improving to meet the higher requirements of the market for product performance, quality and cost effectiveness. The following are some of the main production process improvements:

1. Raw material selection and ratio optimization

High purity raw materials: The use of higher isotactic polypropylene raw materials to improve the strength of the stretched film. At the same time, according to the product performance requirements, the ratio of raw materials is precisely controlled to ensure the stability of product quality.

Additive use: Add an appropriate amount of additives to the raw material, such as pore-causing agents, color masterbatches, etc., to improve the physical properties, optical properties and printing adaptability of the product.

2. Bidirectional drawing process improvement

Stretch ratio adjustment: By optimizing the longitudinal and transverse stretch ratio, the film has a more balanced performance in both vertical and horizontal directions. For example, the tensile strength and dimensional stability of the film can be improved by adjusting the longitudinal tensile ratio and transverse tensile ratio reasonably.

Tensile temperature control: Precisely control the temperature during the stretching process to ensure that the raw material is in the best plasticized state during the stretching process, thereby improving the uniformity and transparency of the film.

Drawing speed optimization: According to the characteristics of raw materials and equipment performance, the drawing speed is adjusted to avoid the problem of broken film and unequal drawing.

3. Coating and surface treatment process

Coating formulation optimization: For the special needs of BOPP color thermal synthetic paper, the coating formulation is optimized, such as increasing the adhesive content, using special fillers, etc., to improve the adhesion between the coating and the substrate and the coating performance.

Coating process improvement: The use of advanced coating technology, such as metering rod coating, curtain coating, etc., to improve the uniformity and consistency of the coating. At the same time, the coating speed and coating amount are reasonably controlled to avoid performance problems caused by too thick or too thin coating.

Surface treatment: Increase the surface roughness of the substrate through mechanical grinding, chemical treatment and other methods to improve the contact area and adhesion between the coating and the substrate. Alternatively, a special coating (such as silicone coating, polymer coating, etc.) is formed on the surface of the substrate to further enhance the adhesive force.

4. Production line automation and intelligence

Digital control: advanced computer control system and sensor technology are adopted to achieve accurate control and real-time monitoring of the process parameters of the production line. This helps to find and solve problems in the production process in time, improve production efficiency and product quality.

Intelligent management: Through the introduction of big data analysis and artificial intelligence algorithms, the production data is deeply mined and analyzed to optimize the production process and formula. At the same time, the intelligent management of the production line is realized to improve the flexibility and response speed of the production process.

5. Environmental protection and sustainable development

Green raw materials: Environmentally friendly raw materials and additives are selected to reduce pollution emissions and waste generation in the production process.

Energy saving and emission reduction: Optimize the production process and equipment design to reduce energy consumption and carbon emissions. For example, energy efficient extruders, drawers and winders are used to reduce energy consumption in the production process.

Recycling: Strengthen the classification, recycling and reuse of waste to improve resource utilization efficiency. For example, scraps and waste from the production process are recycled and reused in production or other fields.

To sum up, the production process of BOPP color thermal synthetic paper has achieved significant improvements in raw material selection and ratio optimization, bidirectional drawing process improvement, coating and surface treatment process, automation and intelligence of production line, environmental protection and sustainable development. These improvements not only improve product performance and quality stability, but also reduce production costs and environmental pollution risks, laying a solid foundation for the sustainable development of the industry.