What is the quality standard of the heat-sensitive label paper?

The quality standard of the heat-sensitive label paper involves many aspects to ensure that it can show excellent performance in a variety of application environments. The following is a summary of the main aspects of the quality standard of the three thermal labels:

First, basic physical properties

1.Quantitative and deviation: refers to the quality of paper per unit area, which needs to be controlled within a certain range, such as 50.0~200.0g/㎡, and the quantitative deviation does not exceed ±6.0%.

2.Tightness: reflects the density of the paper, and needs to meet certain standards to ensure the strength and stability of the paper.

3.Brightness (whiteness) : the brightness of the paper surface, which affects the printing effect and visual effect, usually between 75.0 and 95.0%.

4.Smoothness: The smoothness of the paper surface, which affects the printing effect and ink absorption, needs to reach a certain standard, such as the front smoothness should be greater than a certain value.

Second, mechanical strength

1.Tensile strength: The ability of paper to resist tensile fracture is an important indicator to evaluate the durability of paper.

2.Tear: The ability of paper to resist damage when subjected to tearing forces, to meet specific requirements to ensure that it is not easily broken during use.

Third, printing and color performance

1.Static color performance and dynamic color performance: including saturated color light density value, color sensitivity and other indicators, to meet specific standards to ensure that the printed image is clear and accurate.

2.Image preservation performance: including heat resistance, moisture resistance, etc., need to be verified by specific tests to ensure that the printed image can remain stable in different environments.

Fourth, protection performance

1.Waterproof performance: The ability of the paper to maintain a clear image and not fade after encountering water is one of the important indicators to evaluate the performance of the three heat-resistant paper. The image retention rate must reach a certain standard, such as not less than 70%.

2.Oil resistance: The ability of the paper to keep the image clear and colorless after contact with oil, also needs to meet specific requirements, such as image retention rate of not less than 70%.

3.Resistance to friction: The ability of paper to maintain a clear image and not fade when subjected to friction is an important aspect of assessing its durability. The image retention rate must reach a certain standard, such as not less than 80%.

Fifth, appearance quality

1.The paper surface is smooth and clean: the paper surface should not have folds, wrinkles, holes, obvious streaks, cracks and other appearance of paper disease.

2.Neat cutting edge: The cutting edge of the paper should be neat and uniform, without jagged edges or rough edges.

3.Clear packaging label: each volume of three heat-proof label paper packaging should indicate the length or number of labels, and the label is accurate.

Sixth, other requirements

1.Environmental protection: With the improvement of environmental awareness, the production and use of heat-sensitive labels must also comply with relevant environmental regulations and standards.

2.Fragility test: In order to ensure that the three heat sensitive label paper is not easy to break or break during use, it is also necessary to carry out fragility test to ensure that its damage rate does not exceed a certain limit.

In summary, the quality standard of the heat-sensitive label paper is a comprehensive evaluation system, involving multiple aspects of performance indicators and inspection methods. Production enterprises need to carry out production and quality control in strict accordance with relevant standards and specifications to ensure product quality and stability. At the same time, the user also needs to choose the right product according to the actual needs and use and maintain it correctly.