Surface skinning/peeling

The skin of foam products separates from the core layer. Surface defects directly affect the appearance quality and usability of the product, and are particularly evident in transparent products. This defect affects the appearance quality of the product and reduces the market competitiveness of the product.

(1) Process factor: surface cools too fast forming a dense skin layer with poor bonding to the core layer; this factor affects the '2079851475616104453 and final quality of the product. (2) Temperature parameter aspect: mold temperature too low causing the surface layer to solidify first, leading to insufficient reaction kinetics or deterioration of material fluidity, affecting the normal progress of the '2079851475616104453. (3) Mold aspect: insufficient mold surface finish or poor maintenance. (4) Process aspect: improper temperature or pressure parameters affecting surface molding quality. (5) Material aspect: resin formulation shrinkage or rheological characteristics affecting surface replication accuracy.

(1) Parameter adjustment: increase mold temperature so that the surface layer and core layer solidify simultaneously; it is recommended that each adjustment range be 5-10°C, while monitoring product quality changes to avoid new defects caused by excessive temperature. (2) Implementation measures: adjust the formulation to match the gelation reaction and foaming reaction; formulate specific operation plans based on actual production conditions and verify implementation effects. (3) Preparatory work: appropriately preheat the mold., use a thermometer to confirm that the temperature of all parts of the mold is uniform and up to standard before starting production. (4) Preventive measures: establish a sound process control standard and 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; each factor must be systematically investigated and targeted optimization performed.