The curing time of melamine impregnated paper processing and printing have those requirements

Today, the melamine impregnated paper will introduce the curing time and printing requirements of the melamine impregnated paper in the processing of the resin. polycondensation into high molecular weight polymers. During this process, the viscosity of the molten resin will increase, and the resin will solidify after being heated for about 10 to 20 seconds, and a three-dimensional cross-linked structure will gradually form. This process has no obvious boundary with the flow of the resin. In the transitional phase that crosses over, the resin is fully cured within 30 to 60 seconds after the press is closed. The resin flow time means that after the hot pressing starts, the surface temperature of the melamine impregnated paper factory direct sales product reaches above 150℃, and the pressure reaches above 2MPa. Under the action of temperature and pressure, the resin flows to form a uniform resin layer on the surface. The time required is about 10 seconds. For the printing of melamine-impregnated paper, the requirements for safety in use are now generally paid attention to, so we are very careful in the printing process. When melamine impregnated paper manufacturers are printing and producing, they all have strict requirements, and we must check whether they meet the relevant performance standards before using them. Only paper that meets the standards can be used with confidence.
The surface strength of melamine printing paper determines the abrasion resistance, powder drop resistance, and fuzz resistance of the surface of the paper during printing. In terms of elasticity and plasticity of melamine-impregnated paper, various changes will occur due to different surrounding environments during various processes such as storage and printing. Different types of printing have different requirements on the whiteness and gloss of melamine-impregnated paper. Generally, the whiteness and gloss of paper will affect the accurate restoration of color hue, lightness and saturation. Last but not least, this is related to the quality of the finished paper, that is, the water content of the printing paper. If the water content is too high, the strength of the paper will be reduced; if the water content is too low, the paper will become brittle, which is easy to cause damage, static electricity, etc.
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