To ensure the durability of the color of the pattern of offset thermal transfer ink, it mainly depends on several key factors such as the quality of the ink, the parameter control during the transfer process, and post-processing:

High-quality ink selection: Using high-quality offset thermal transfer ink is the first condition to ensure the durability of the color of the pattern. High-quality inks usually contain more stable pigments and better formulas, which can provide better color fastness and light resistance.

Correct transfer parameters: Transfer temperature, time and pressure are the three main parameters that affect the quality of transfer. Too high or too low temperature, inappropriate pressure or time may affect the transfer efficiency of the ink and the adhesion of the pattern. Usually, manufacturers will provide the best transfer parameters, and ensuring that these parameters are correctly applied is the key to ensuring the durability of the color of the pattern.

High-quality transfer paper: The quality of the transfer paper will also affect the final effect of the pattern. High-quality transfer paper can better absorb the ink and release it evenly at high temperature, making the pattern more vivid and uniform.

Post-processing process: Textiles after transfer usually need appropriate post-processing, such as color fixing treatment, water washing, etc., to further fix the color and improve washability. This step is essential to maintain the long-term color vividness and durability of the pattern.

Avoid direct exposure to strong light: Although high-quality offset thermal transfer inks have good light resistance, long-term direct exposure to strong light (such as direct sunlight) may still cause the color to fade gradually. Appropriately avoiding this can extend the color life of the printed product.

Reasonable washing and maintenance: Washing and maintaining textiles according to the correct washing method, using mild detergents, and avoiding strong mechanical washing and chemical detergents can effectively maintain the color and texture of the pattern.