What are the factors that affect the printing effect of BOPP thermal sensitive synthetic paper?

There are many factors that affect the printing effect of BOPP (biaxially oriented polypropylene) thermosensitive synthetic paper, including material properties, production processes, printing technology, and post-processing techniques. The following is a detailed analysis of these factors:

1、 Material characteristics

Substrate quality: BOPP film, as the substrate of BOPP thermosensitive synthetic paper, directly affects the color reproduction and printing clarity through its transparency, glossiness, and surface smoothness. High quality BOPP film can provide clearer and more vivid color expression.

Thermal sensitive coating: The formula and performance of thermal sensitive coating play a crucial role in the printing effect. Excellent thermal sensitive coatings can accurately and quickly respond to temperature changes, presenting stable color effects. Coating uniformity is also a key factor affecting color uniformity and restoration.

2、 Production process

Film thickness: The uniformity of BOPP film thickness has a significant impact on printing quality. Uneven thickness may lead to uneven ink coating and poor transition color effect in overprinting.

Optical performance: including haze, transparency, and glossiness. Thin films with low haze, high transparency, and high glossiness are beneficial for presenting clearer printed patterns and brighter colors.

Surface wetting tension: The size of the surface wetting tension of BOPP film affects the adhesion of ink, which in turn affects printing fastness. Usually, the wetting tension of the film surface after corona treatment should reach a certain standard to ensure good ink transfer.

3、 Printing technology

Printing equipment: The accuracy and stability of printing equipment have a direct impact on the printing effect. High precision and high stability printing equipment can reduce color deviation during the printing process and improve color reproduction.

Printing parameter settings: Reasonable settings of parameters such as printing speed and printing density are crucial for the printing effect. Improper parameter settings may lead to issues such as unclear printing and inconsistent colors.

4、 Post processing technology

Drying and curing: The process of coating drying and curing has an impact on color reproduction. Appropriate drying and curing conditions can ensure stable coating performance and accurate color reproduction.

Film coating treatment: BOPP thermosensitive synthetic paper may require film coating treatment after printing to improve its durability and aesthetics. The selection of laminating materials and the implementation of laminating processes will have a certain impact on color reproduction.

5、 Other factors

Storage conditions: BOPP thermosensitive synthetic paper should be stored in a dry, ventilated, and dust-free environment, avoiding direct sunlight and high temperature and humidity conditions. Improper storage environment may lead to a decrease in material performance and affect printing results.

Operating standards: During use, attention should be paid to avoiding scratches and contamination to avoid affecting the appearance quality and information readability of printed products. At the same time, proper operating procedures can also help extend the service life of BOPP thermal sensitive synthetic paper.

In summary, there are numerous and interrelated factors that affect the printing effect of BOPP thermal sensitive synthetic paper. In order to improve the printing effect, it is necessary to comprehensively consider and optimize from multiple aspects such as material selection, production process, printing technology, post-processing technology, storage and use.