How to identify the quality of PET thermal matte silver paper?

Identifying the quality of PET thermosensitive matte silver paper can be started from the following aspects:

First, appearance inspection

1.Color and gloss: High-quality PET thermal matte silver paper should present a uniform matte silver, moderate gloss, neither too shiny nor too dim. If the paper color is uneven or the gloss is abnormal, it may mean that there is a problem with the quality.

2.Flatness: Observe whether the surface of the paper is smooth, and whether there are obvious bumps, folds or bubbles. The surface of high-quality PET thermal matte silver paper should be smooth and flat, without defects.

3.Coating uniformity: The matte silver coating should be evenly covered on the surface of the paper, without leakage, spots or streaks. Uneven coating can affect the printing effect and durability of the label.

Second, physical performance test

1.Tear resistance: gently tear the edge of the paper and observe its tear resistance. High quality PET thermal matte silver paper should have good tear resistance and is not easy to tear.

2.Wear resistance: Gently scrape the surface of the paper with a nail or a hard object to observe whether the coating is easy to wear. Paper with good wear resistance is not easily damaged during prolonged use or friction.

3.Temperature resistance: Although the PET material itself has good temperature resistance, the temperature resistance of PET thermal matte silver paper produced by different manufacturers may be different. The temperature resistance of the paper can be evaluated by simulating the high temperature environment to test the deformation and fading of the paper.

Third, chemical stability test

1.Water resistance: Drop a small amount of water on the surface of the paper and observe whether the paper absorbs water, deforms or fades. High quality PET thermal matte silver paper should have good waterproof performance.

2.Oil resistance: Apply a small amount of oil on the surface of the paper, and observe whether the paper penetrates, discolors or falls off. Paper with good oil resistance is not easily affected when it comes into contact with grease.

3.Chemical resistance: According to actual needs, appropriate chemical agents (such as acid, alkali, etc.) can be selected for testing to observe whether the paper has chemical reactions, discoloration or damage.

Fourth, print effect test

1.Clarity: Use a thermal printer to print text or patterns on paper, and observe whether the printing effect is clear and whether the edges are neat. High quality PET thermal matte silver paper should be able to present a high quality printing effect.

2.Durability: Place the printed label in a specific environment (such as high temperature, humidity, etc.), and observe whether the printed content is faded, blurred or fallen off. Durable paper ensures that the label remains legible over a long period of use.

Fifth, professional equipment testing

For applications requiring higher accuracy and reliability, professional equipment can be used to test the performance of PET thermal matte silver paper, such as gloss meter, wear testing machine, weather resistance test chamber, etc. These devices can provide more accurate and comprehensive data support.

To sum up, identifying the quality of PET thermal matte silver paper needs to be comprehensively evaluated from many aspects. When purchasing, it is recommended to choose well-known brands and reputable suppliers to ensure access to high-quality products.