How to distinguish the quality of BOPP thermal synthetic paper?

Identifying the quality of BOPP thermal synthetic paper can be comprehensively considered from the following aspects:

First, appearance inspection

1. Color and gloss:

Better quality BOPP thermal synthetic paper is usually slightly green in color, rather than too white. Too white paper may add too much phosphor, affecting the stability of the heat-sensitive coating and printing effect.

Observe the finish of the paper, the surface should be uniform, no obvious uneven or uneven luster phenomenon.

2. Coating uniformity:

By observing the reflected light intensity of the paper, it can be preliminarily determined whether the coating is uniform. Too much reflected light can mean too much phosphor or uneven coating.

Second, physical test

1. Fire test:

Use a lighter to heat the back of the paper for a short time, and observe the color change of the paper after heating.

Good quality paper after heating should appear black green, and uniform color. If the color is brown or uneven, it may indicate that the heat-sensitive formula is unreasonable or the coating is uneven, affecting the storage time and printing effect of the paper.

2. Sun exposure comparison:

Apply the printed paper with a highlighter and put it in the sun to observe how quickly the paper turns black.

Paper that blackens quickly may indicate that its heat-sensitive coating is unstable and has a short shelf life.

Third, print effect test

1. Clarity and stability:

Select a small section of BOPP thermal synthetic paper for printing test, observe the clarity of the printed content, edge smoothness, and whether there is a blur or broken line phenomenon.

High-quality thermal paper should be able to present the printed content clearly and quickly, and the printing effect is stable and reliable.

2. Scratch resistance:

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 and maintain the durability of the printed content.

Fourth, product certification and brand reputation

Check product certification: Pay attention to whether BOPP 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.

Choose well-known brands: Well-known brands often have stricter quality control systems and after-sales service guarantees, which can reduce the risk of buying inferior products.

To sum up, identifying the quality of BOPP thermal synthetic paper needs to be comprehensively considered from many aspects such as appearance, physical characteristics, printing effect, product certification and brand reputation. By considering these factors comprehensively, BOPP thermosensitive synthetic paper products with excellent quality and stable performance can be selected.