How to test the high temperature resistance limit of PET matte silver label paper?

To test the high temperature resistance limit of PET matte silver label paper, the following steps can be followed:

1、 Preparation stage

Obtain samples: Ensure that the PET matte silver label paper samples used are representative and sufficient in quantity for testing.

Equipment preparation: Prepare necessary testing equipment such as incubators, thermometers, observation and recording tools, etc.

2、 Test steps

Set test temperature:

Set the temperature of the thermostat according to the expected testing range. You can start from a lower temperature and gradually increase it to observe the performance of the label paper at different temperatures.

Place the sample:

Place the PET matte silver label paper sample flat in a constant temperature chamber, ensuring that the sample is kept at a certain distance from the inner wall of the chamber to avoid direct contact and errors.

Observation record:

Maintain the sample at the set temperature for a certain period of time (such as 24 hours or longer, depending on the testing requirements), and then take out the sample for observation.

Record the changes in the sample at high temperatures, such as color changes, deformation, viscosity changes, etc.

Gradually heating up:

If there is no significant change in the sample at the initial set temperature, continue to increase the temperature of the constant temperature chamber and repeat the above observation and recording steps.

3、 Result analysis

Determine the high temperature resistance limit:

By observing and recording, determine the temperature point at which PET matte silver label paper begins to show significant changes (such as color fading, severe deformation, loss of adhesion, etc.), which is the high temperature resistance limit of the label paper.

Evaluate performance:

Based on the test results, evaluate the applicability and durability of PET matte silver label paper in high-temperature environments.

4、 Precautions

Test environment:

Ensure a stable testing environment and avoid external factors such as humidity and light from affecting the test results.

Testing standards:

You can refer to relevant industry standards or testing methods to set testing conditions and evaluation criteria.

Safe operation:

During operation, pay attention to the safe use of high-temperature equipment to avoid burns or other safety accidents.

Through the above steps, the high temperature resistance limit of PET matte silver label paper can be accurately tested, providing reliable data support for practical applications. At the same time, attention should also be paid to the safety and accuracy of the testing process to ensure the reliability of the test results.