Fish scale surface defects appear on laminates

The product surface shows irregular fish-scale-like peeling. Surface defects directly affect the appearance quality and service performance of the product, particularly evident in transparent products. This defect affects the appearance quality of the product, reducing the market competitiveness of the product.

(1) Process factor: During hot pressing, resin flow drives surface fibers to slip and accumulate, This factor affects the '2079851475616104453 and final quality of the product. (2) Process factor: Similar to fish scale texture, This factor affects the '2079851475616104453 and final quality of the product. (3) Mold aspect: Insufficient mold surface finish or poor maintenance. (4) Process aspect: Improper temperature or pressure parameters affect surface molding quality. (5) Material aspect: The shrinkage or rheological characteristics of the resin formulation affect surface replication accuracy.

(1) Parameter adjustment: Reduce the initial rising rate of hot pressing pressure so that the resin flows slowly, Appropriately reduce the pressure on the premise of ensuring product compactness, avoiding defects caused by insufficient pressure. (2) Formulation optimization: Add a surface fixing layer (such as surface mat) to restrict fiber slippage., Determine the optimal addition amount through small-batch tests, and verify the effect on the overall performance of the product. (3) Mold maintenance: Improve the polishing grade of the mold surface, and regularly clean and maintain the cavity. (4) Process adjustment: Optimize the release agent application process to ensure uniform and complete coverage. (5) Preventive measure: Establish sound process control standards and a quality inspection system, and regularly review process data for continuous optimization.

Surface defects are the result of the combined action of mold condition, process parameters, and material formulation; it is necessary to systematically investigate each factor and optimize accordingly.