What performance indicators should be considered when purchasing PET matte silver thermal paper?

When purchasing PET matte silver thermal paper, the following key performance indicators should be considered to ensure that the purchased paper can meet specific application needs and printing effects:

1、 Basic physical properties

Quantification (gram weight):

Indicates the quality of paper per unit area, which affects the thickness, stiffness, and printing effect of the paper.

Choose appropriate quantities based on demand, such as low quantities for cost savings and environmental protection, and high quantities for durability.

Dimensional deviation:

Including width deviation and length deviation, which affect the accuracy of printing and the applicability of labels.

Choose paper with small size deviation to ensure consistency between printed content and label size.

Smoothness/roughness:

Smoothness affects the quality of thermal imaging and the lifespan of print heads.

Using a PPS roughness meter for measurement, it is required that the PPS of ordinary thermal paper should be ≤ 2.5 μ m, and the PPS of special thermal paper should be ≤ 1.75 μ m.

2、 Mechanical performance

Tensile strength:

The ability of paper to resist tensile damage affects the durability and endurance of labels.

Select the appropriate tensile strength based on the quantitative range, such as low quantitative ≥ 1.75KN/m, medium quantitative ≥ 2.50KN/m, and high quantitative ≥ 4.00KN/m.

Tear strength:

The ability of paper to resist tearing and damage affects the stability of labels under stress.

Similarly, select the appropriate tearing strength based on the quantitative range, such as low quantitative ≥ 150mN, medium quantitative ≥ 200mN, and high quantitative ≥ 300mN.

3、 Thermal sensitivity performance

Static color performance:

The speed and uniformity of color development of paper at a constant temperature.

Measured by a static color analyzer, represented by optical density values or static color curves.

Dynamic color performance:

The color speed and uniformity of paper during the printing process.

Evaluate print quality, clarity, and other indicators through dynamic colorimeter measurement.

4、 Image preservation and protection performance

Image saving performance:

The stability and durability of printed images on paper.

Evaluate the degree of image fading through storage and testing under specific conditions.

Image protection performance:

Including waterproof, oil resistant, ethanol resistant, friction resistant and other properties.

Select the appropriate level of protection performance based on the application scenario. For example, logistics labels may have lower requirements for ethanol resistance, but higher requirements for friction resistance.

5、 Environmental Protection and Safety Performance

Delivery moisture:

The moisture content in paper affects its quality and printing effect.

Generally, the delivery moisture content is required to be ≤ 8.5% to avoid the risk of fading.

Bisphenol A (BPA) content:

For application scenarios such as food labeling, attention should be paid to the BPA content in paper to ensure compliance with food safety standards.

Recyclability:

Whether the paper is recyclable and the environmental impact during the recycling process.

Choose recyclable or environmentally certified thermal paper products to reduce their impact on the environment.

6、 Compatibility and Applicability

Printer compatibility:

Ensure that the purchased paper is compatible with the printer model and specifications.

Check the printer manual or consult the manufacturer for compatible paper specifications.

Application scenario applicability:

Choose the appropriate paper type and specification based on the application scenario.

Used in the retail industry for printing price tags, barcodes, and QR codes, etc; The logistics industry is used to print identification labels for packages, goods, and other items; The medical industry uses printing labels for medical equipment, drugs, and other items.

In summary, when purchasing PET matte silver thermal paper, the above performance indicators should be comprehensively considered to ensure that the purchased paper can meet specific application needs and printing effects. At the same time, choose products provided by legitimate and reputable manufacturers and suppliers to ensure product quality and after-sales service.