1. Heat resistance: For discolored leather, avoid working at a temperature higher than 75°C for a long time.

2. Photochromic leather itself is an unstable system (it is difficult to change when it is stable), so its light resistance, heat resistance and aging resistance are far less than ordinary leather, so attention should be paid to it in use.

3. Light fastness: The light fastness of the light-sensitive discoloration leather is poor, and it will fade and lose its color quickly when exposed to strong sunlight. Long-term exposure to strong sunlight and ultraviolet light should be avoided, which will help extend the life of the color-changing leather.

4. Environmental protection qualification: The photochromic material does not contain harmful substances that are harmful to the human body, and meets the specifications and standards of safe toys and food packaging.

5. Storage of light-changing leather: It should be stored in a cool, dry and completely dark condition. Under the above-mentioned conditions, the performance of most discoloration leathers after 5 years of storage has not been significantly degraded