How to judge the quality of BOPP color thermal synthetic paper?

Judging the quality of BOPP color thermal synthetic paper can be considered from the following aspects:

First, appearance inspection

1. Color and gloss:

Observe whether the color of the paper is uniform, high-quality BOPP color thermal synthetic paper color should be uniform, no obvious color difference or spots.

Pay attention to the gloss of the paper, too reflective may mean that too much phosphor has been added, which may affect the quality of the paper and the printing effect.

2. Coating uniformity:

Check whether the surface of the paper is smooth and smooth, the paper with good coating uniformity has better printing effect, and it is not easy to appear fuzzy or broken line.

If the surface of the paper has obvious concavity or uneven coating, it may affect the print quality and the durability of the paper.

Second, physical characteristics test

1. Thermal sensitivity test:

Use a lighter to heat the back of the paper (pay attention to safety, avoid causing a fire) and observe the color change of the paper after heating.

High quality thermal paper should show a uniform black green after heating, and the color is full. If the paper appears brown or striped, uneven color, indicating that the thermal formula may not be reasonable, the paper quality may be poor.

2. Scratch resistance test:

Gently run your fingernail across the print area to see if the print is easily chipped or blurry. High-quality paper should have good scratch resistance to ensure that the printed content is not easily damaged in normal use.

3. Comparison and identification of sunlight exposure:

Apply the printed paper with a highlighter and put it in the sun to observe how quickly the paper turns black. The paper that blackens first indicates that its shelf life may be shorter, because the heat-sensitive coating is more sensitive to light.

Third, print effect evaluation

Select a small section of BOPP color thermal synthetic paper and print test through the printer.

Observe the printing effect, high-quality thermal paper should be able to clearly and quickly present the printed content, the edge of the text or image smooth, no blur or broken line phenomenon. At the same time, the color after printing should be uniform, no obvious color difference or spots.

Fourth, product certification and brand reputation

Pay attention to whether the BOPP color thermal synthetic paper has passed the relevant quality certification, such as ISO, CE, etc. These certifications indicate that the product meets certain quality standards and safety requirements.

It is also wise to choose products from well-known brands. Well-known brands often have more stringent quality control systems and after-sales service guarantees, which can reduce the risk of buying inferior products.

Fifth, environmental protection considerations

With the enhancement of environmental awareness, environmental protection has also become an important factor in judging the quality of BOPP color thermal synthetic paper. High-quality BOPP color thermal synthetic paper should have good degradability and will not cause serious pollution to the environment.

To sum up, judging the quality of BOPP color thermal synthetic paper needs to be considered from multiple dimensions, including appearance, physical characteristics, printing effect, product certification and brand reputation, and environmental protection. By comprehensive evaluation of these aspects, you can select high-quality BOPP color thermal synthetic paper.