Causes of sheet warping in melamine impregnated paper

The melamine-impregnated paper veneer treatment can obtain firm adhesive strength and good surface performance only under the correct combination of temperature and pressure IH. Today, decorative paper manufacturers briefly summarize the reasons for the warping of melamine impregnated paper.
1. Incorrect stacking method of finished products after hot pressing is another main reason for the warping of sheets. The solution is to use uniform and straight skids or pallets to store hot pressed melamine impregnated paper veneers .
2. From the perspective of the material itself, the performance of the two layers of impregnated paper used in the village material is not the same, which will also cause the board to warp. If a single-sided sticker of the substrate is used, warpage is an inevitable result. From the production point of view, it can be ensured that the board does not warp by using the same impregnated paper or adjusting the appropriate temperature difference between the upper and lower platens.
3. From the point of view of hot pressing, the warping of the plate is due to the excessive temperature difference between the upper and lower platens, which causes the curing speed of the adhesive film on both sides of the substrate to be asynchronous during the pressing process, and the plate is bent to the solid state. Seventeen quick side due. The suitable temperature difference between the upper and lower platens should be that the temperature of the upper platen is 3-5 higher than that of the lower platen.
The above is the introduction of the reasons for the warping of the melamine impregnated paper. I hope it will help you. If you have any other questions or needs, you can log in to our official website or call for consultation. We look forward to your call. Welcome new and old customers to visit our company for cooperation!

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