How to distinguish the quality of PET matte silver label paper?

The quality of PET matte silver label paper can be identified from the following aspects:

1、 Appearance inspection

Paper identification:

Check whether the markings inside the paper core, on the packaging bag of each roll of paper, and on the outside of the cardboard box are properly marked, and whether the markings are clear and accurate.

Surface cleanliness:

Observe whether the surface of the paper is clean and free from excessive dust and impurities.

Spacing and Margins:

Check whether the spacing and margins of the paper are consistent, which can reflect whether the production process of the label paper is stable.

Die cutting quality:

Check if the paper is divided into edge strips after die-cutting, and if the side of the paper roll is clean, without burrs or defects.

2、 Physical performance testing

Tear strength:

Try tearing off a label paper by hand and feel its firmness. High quality PET matte silver label paper should have strong tear strength and be not easily torn.

Viscosity test:

Stick the label paper on a clean surface (such as copperplate paper), then try to peel it off and observe if its adhesion is appropriate. Excessive adhesion may make it difficult to peel off, while weak adhesion may cause the label to peel off.

Heat resistance test:

Using a constant temperature chamber or similar equipment, place the label paper in a certain high-temperature environment and observe whether it undergoes deformation, fading, or loss of adhesion. High quality PET matte silver label paper should have good heat resistance.

Moisture resistance test:

Place the label paper in a damp environment and observe whether it absorbs water, deforms, or loses its stickiness. High quality PET matte silver label paper should have a certain degree of moisture resistance.

3、 Printing effect test

Print clarity:

Use a printer to print label paper and observe whether the printing effect is clear and whether the text or patterns are blurry.

Ink adhesion:

After printing, gently scrape the surface of the label paper with a hard object such as a key, and observe whether the ink is easily peeled off. High quality PET matte silver label paper should have good ink adhesion.

4、 Other factors

Environmental performance:

Pay attention to the environmental performance of label paper, such as whether it contains harmful substances, whether it is biodegradable, etc. High quality PET matte silver label paper should meet environmental requirements.

Thickness and weight:

Check if the thickness and weight of the label paper meet the specifications. Different thicknesses of label paper have different application scenarios and performance characteristics.

In summary, identifying the quality of PET matte silver label paper requires comprehensive consideration from multiple aspects. Through comprehensive evaluation of appearance inspection, physical performance testing, printing effect testing, and other factors, the quality of label paper can be accurately judged.