What are the quality inspection standards for hanging tag copperplate paper?

Regarding the quality inspection standards for hanging tag copperplate paper, the following main aspects can be referred to:

1、 General Quality Inspection Standards

GB/T 10335.1-2017： Coated paper and paperboard coated art printing paper (copperplate paper), this is a national standard specifically designed for copperplate paper, covering the basic quality requirements of copperplate paper.

QB/T 5044-2017： The energy consumption limit per unit product of coated art printing paper (copperplate paper), although mainly focused on energy consumption, indirectly reflects production efficiency and quality stability.

2、 Key quality indicators

Thickness: The thickness of copperplate paper needs to be controlled within a certain range, usually requiring an error of no more than ± 3%. The uniformity of thickness is crucial for the flatness and color effect of printed materials.

Area density: The error in area density should not exceed ± 5%. Area density reflects the tightness and uniformity of paper, and has an impact on the printing effect and durability of printed materials.

Water absorption and oil absorption: The error between these two indicators should not exceed ± 10%. The water absorption and oil absorption reflect the paper's ability to absorb ink and water, and have a significant impact on the drying speed and color saturation of printed materials.

Slip: The slip error should not exceed ± 15%. Slippery refers to the smoothness of the surface of a paper, which affects the uniform distribution of ink on the paper surface and the clarity of printed materials.

3、 Special Purpose Quality Inspection Standards

For specific use of hang tag copperplate paper, such as adhesive copperplate paper used for medical device packaging, specific quality testing standards must also be followed, such as:

DIN EN 868-7-2017/BS EN 868-7-2017/EN 868-7-2017： These standards specify the testing methods and requirements for adhesive copperplate paper used in the packaging of final sterilized medical devices.

4、 Other relevant standards

Although not directly targeting the copper plate paper for hang tags, the following standards may also be involved in quality testing:

GB/T 2899-2017： Industrial precipitation of barium sulfate may be related to certain fillers or additives in copperplate paper.

GB/T 22832-2008： Coated art printing paper base paper (copperplate base paper), this standard specifies the quality requirements for copperplate base paper and can be used as a reference for copperplate paper quality testing.

In summary, the quality inspection standards for hang tag copperplate paper cover multiple aspects, including general standards, key quality indicators, special purpose standards, and other relevant standards. These standards together constitute a complete system for quality inspection of hang tag copperplate paper, ensuring that the quality and performance of hang tag copperplate paper meet the design requirements and usage needs.