How to determine the quality of colored thermal sensitive synthetic paper?

The quality of colored thermal sensitive synthetic paper can be judged from the following aspects:

1、 Appearance inspection

Color and Gloss: High quality color thermal synthetic paper should have a slight greenish tint instead of being too pure white. Overly white paper may have added too much fluorescent powder, affecting printing quality and storage time. At the same time, the glossiness of the paper should be moderate, and excessive reflected light may indicate excessive addition of fluorescent powder.

Surface flatness: The paper should be smooth and flat, without obvious wrinkles, stains, scratches, and other defects. Uneven paper may affect printing quality and clarity.

Coating uniformity: By observing the coating uniformity on the surface of the paper, the quality of the paper can be preliminarily judged. Uneven coating on paper may result in blurry handwriting and uneven color during printing.

2、 Color rendering effect

Color development density and clarity: High quality color thermal synthetic paper should be able to provide high-density color development and clear handwriting. During printing testing, it is possible to observe whether the printed patterns or text are clear and whether the colors are full.

Color stability: High quality color thermal sensitive synthetic paper should maintain stable color after printing and not easily fade. The color stability of printed paper can be determined by placing it in sunlight or a humid environment to observe its color changes.

3、 Save performance

Storage time: Poor quality thermal paper has a very short storage time, while high-quality colored thermal synthetic paper can usually maintain the handwriting for a long time, even up to several years. The storage performance can be determined by comparing the storage time of different batches or brands of paper under the same conditions.

Anti aging performance: high-quality color thermosensitive synthetic paper should have good anti-aging performance and be able to maintain the stability of color and clarity for a long time. The anti-aging performance of paper can be evaluated through accelerated aging experiments (such as high temperature, high humidity, light, etc.).

4、 Physical performance

Tensile strength and tear strength: High quality color thermal synthetic paper should have sufficient tensile strength and tear strength to ensure that it is not easily damaged during use. Professional testing equipment can be used to measure the tensile strength and tear strength of paper.

Water resistance: For colored thermosensitive synthetic paper that needs to come into contact with water or humid environments, its water resistance is also an important quality indicator. The water resistance of paper can be determined by soaking it in water and observing its deformation and fading.

5、 Environmental performance

Environmentally friendly materials: High quality colored thermal sensitive synthetic paper should be made of environmentally friendly materials that are biodegradable or recyclable. You can understand the environmental performance of a product by checking its environmental certification or testing report.

Volatile Organic Compounds (VOCs) Content: VOCs are chemicals that are harmful to human health and the environment. High quality color thermosensitive synthetic paper should strictly control the content of VOCs to ensure that it meets environmental standards.

In summary, judging the quality of colored thermal sensitive synthetic paper requires comprehensive consideration from multiple aspects. When purchasing, it is recommended to choose well-known brands, products with good reputation and certification to ensure that their quality and performance meet the needs of use.