Talk about the current problems faced by melamine impregnated paper

The melamine impregnated paper we use is a very useful building decoration material, but no matter how good it is, there are imperfect areas, so Xiaobian summarizes the common faults of melamine impregnated paper and some simple solutions.

1. Cushion Block Condition Cushion Block is that the plate is partially or completely adhered to the cushion block in the pressing process. The reasons are as follows:

1. The pressing time is short, or the temperature of the hot pressing plate is low or the part is slightly lower, so that the resin curing is incomplete;

2. The water content of the plate is too high;

3, impregnated paper coating too much, volatile composition is too high;

4, the surface of the thick steel plate is not cleaned, the type of release agent is not suitable or the glue is uneven;

5. Billet positioning is not accurate when pressing. The sticking condition mostly occurs around the plate, which is due to the low temperature at the edge or the outstanding offset of the square billet inside the press. Should be checked one by one to find the real reason for the occurrence of sticky board, timely treatment, reduce losses. The main reason for sticking to the board is that the adhesive is not completely dry. Therefore, it is an effective way to increase the ambient temperature or increase the pressing time to deal with such problems.

2. the board is warped

1. From the perspective of pressing, the warping of the board is mainly due to the large temperature difference between the upper and lower pressure plates, which leads to the asynchronous curing speed of the gummed paper on both sides of the board in the pressing process, and the board bends to the 17-speed side. Xiaobian believes that the appropriate temperature difference between the upper and lower pressure plates should be that the ambient temperature of the upper pressure plate is 3~5 higher than that of the lower pressure plate.

2. From the perspective of the raw materials themselves, the characteristics of the commonly used double-layer impregnated paper for village materials will also cause the board to warp. If the single-layer paper paste is used, the warpage is an inevitable conclusion. From the production point of view, the same impregnated paper can be used or the appropriate temperature difference between the upper and lower pressure plates can be adjusted to ensure that the plate does not warp.

3. Wrong stacking method of finished products after pressing is another major factor causing warping of the board. The solution is to use symmetrical and vertical cushion blocks or trays to store the melamine impregnated paper board with better pressing. Through my above summary, I think everyone has already mastered how much we still say: "when we really want to produce high-quality products, we must adopt good impregnated paper and plates and scientific and reasonable production technology." in addition, we also need the cooperation of actual operation and inspection personnel, and timely feedback should be given to problems. only in this way can we ensure stable product quality and occupy a larger sales market.

Well, that's all for the melamine impregnated paper. Thank you for watching. See you next time.

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