The effect of color on the performance of bio-based PVC leather, bio-based PVC leather is produced by coating method, which is the same as the production process of ordinary PVC leather, and its production process Jiaxi Network Literature studies the influence of variables such as color, texture and perforation on the performance of bio-based PVC leather, so as to confirm the best scheme for the application of bio-based PVC leather on seats
Affected by the market and design trends, there is a trend of diversification in the color of car seats, people require the mechanical properties of seat materials at the same time, but also require that the color of the seat and chair can meet the requirements of dirt resistance, wear resistance, light resistance, heat resistance, noise resistance, etc.
Through comparison, it can be seen that with the gradual lightening of the color, the color fastness to friction light aging and heat aging gray level gradually decreased from grade 5 to grade 4, but all met the design requirements of grade 4; The gray level of anti-fouling and cleaning ability is gradually reduced from level 5 to level 3 and 4, and the L value cannot meet the design requirements after 80.
Odor level 6, no change; After the amine discoloration L value is 80, the δb exceeds 5, which cannot meet the design requirements of δb 5. The RPN value of the noise test gradually increased from level 1 to level 10, and the L value was 74, which could not meet the design requirements of RPN 3
Therefore, the lighter the color of the bio-based PVC leather, the higher the L value, the worse the stain resistance, amine discoloration resistance and noise test performance of the bio-based PVC leather, and the worse the stain resistance, amine discoloration resistance and noise test value of the bio-based PVC leather after the L value of 74, the anti-fouling and cleaning ability, amine discoloration resistance, noise test value, etc. can not meet the target requirements; Colorfastness to rubbing Light aging decreases with lightening color, but it can meet the target requirements;
There was no significant difference in the odor performance of bio-based PVC leather of different colors Further analysis of the reasons showed that most of the pollutants used to test the anti-fouling performance were colored, which had high color contrast with light-colored PVC leather, and it was more difficult to remove the surface of light-colored bio-based PVC leather, resulting in poor anti-fouling effect of light-colored bio-based PVC leather.
Amine reagents will promote the reaction of decoupling the molecular chain of bio-based PVC leather to form conjugated polyene series substances, and most of the conjugated polyene series substances produced are colored, so that light-colored bio-based PVC leather is more prone to amine yellowing