What should be noted during the raw material mixing process of BOPP thermosensitive synthetic paper?

The raw material mixing process of BOPP thermal sensitive synthetic paper is a critical step that directly affects the quality and performance of the final product. The following are several aspects that need to be noted during the process of mixing raw materials:

1、 Raw material selection

Main raw materials: Polypropylene (PP) resin, especially isotactic polypropylene, is mainly used, and its content needs to reach a high standard (such as 95%~97%) to ensure the tensile strength and physical properties of the film.

Functional fillers: Add functional fillers such as pigments, dyes, etc. as needed to give paper specific colors and functional properties.

Additives: including antioxidants, lubricants, fluorescent whitening agents, titanium dioxide, etc., to improve the processing performance of paper and the performance of the final product.

2、 Mixing ratio

Strictly control the proportion: Mix polypropylene resin, functional fillers, and various additives evenly in a certain proportion. The mixing process requires strict control of the proportion of raw materials to ensure the performance of the final product.

Accurate measurement: Use precise measuring equipment to weigh various raw materials to ensure the accuracy of the mixing ratio.

3、 Mixed quality

Uniform mixing: Efficient mixing equipment such as high-speed mixers or kneading machines are used to thoroughly mix the raw materials evenly. During the mixing process, it is necessary to observe the mixing situation to ensure that there are no dead corners or layering phenomena.

Avoid impurities: During the mixing process, attention should be paid to avoiding the mixing of impurities such as dust, metal fragments, etc. These impurities may affect the quality and performance of the final product.

4、 Mixed environment

Temperature control: During the mixing process, it is necessary to control the appropriate temperature to ensure the plasticization and mixing effect of the raw materials. Excessive or insufficient temperature may affect the quality of the mixture.

Humidity control: Excessive humidity may cause the raw materials to absorb moisture, affecting the mixing effect and the performance of the final product. Therefore, the mixed environment should maintain appropriate humidity.

5、 Safe operation

Protective measures: Operators should wear protective equipment such as dust masks, gloves, etc. to prevent the harm of raw material dust to the body.

Equipment maintenance: Hybrid equipment should be regularly maintained and serviced to ensure its normal operation and extend its service life.

In summary, the raw material mixing process of BOPP thermosensitive synthetic paper requires attention to aspects such as raw material selection, mixing ratio, mixing quality, mixing environment, and safe operation. Only by strictly controlling these aspects can we ensure the quality and performance of the final product.