Factors Affecting the Quality of Decorative Paper

Melamine-impregnated paper is used to decorate the surface of the paint-free board, providing colors and patterns. The overall demand is excellent. To?have good quality, when producing melamine-impregnated paper, all factors need to be strictly controlled to meet its extensive requirements. ??

• Raw materials, decorative paper, resin, and some additives

??Raw materials are an essential factor affecting melamine decorative paper's production quality. We must use high-quality decorative base paper, that is, it has a particular wet strength and good absorption. On the other hand, it must have good appearance, which means higher whiteness, excellent coverage, and surface flatness.

??When impregnating decorative paper with resin, it is easy to leave pores on the surface of the paper with melamine resin alone.?Therefore, the urea-formaldehyde resin must be added to the melamine resin to solve this defect. Urea-formaldehyde resin and melamine resin also have an excellent complementary effect: especially in the production of light-colored decorative paper, the opaque component of urea-formaldehyde resin will enhance the hiding power of the impregnated paper after hot pressing and avoid the occurrence of the bottom-through phenomenon.

• The process flow should be standardized and traceable.

??In the process of producing, we must operate decorative melamine paper strictly according to the technical requirements to ensure that the amount of glue, volatile matter content and pre-curing degree all meet the technical specifications. The selected production raw materials must be tested?before using, and unqualified raw materials must?not be flowed?to the production line. Any details in the production will affect the quality of the decorative paper, so attention should be paid to the operation details to improve the quality further.

• Adjust the formula and process according to the application.

?It is necessary to select excellent impregnated paper, base material and adopt reasonable processing technology. Melamine paper can be laminated to a Density Board, Particle Board, Multilayer Board, and other substrates.?Different substrates require different?impregnating?papers, glue formulations, impregnated glue parameters and pressing processes. In addition, the operation and inspection personnel must cooperate fully to find out the cause and solve it in time when problems occur. Only in this way can the product quality be guaranteed.

The three factors above affect the quality of decorative paper: the selection of raw materials, the standardized process flow, and the?reasonable processes for different substrates. Melamine-impregnated paper, a new type of wood-based panel decorative material, is becoming more and more popular.

While quality control needs to be further strengthened, we should improve product personalization, functionality, and environmental protection in the future. At the same time,?we also need to increase research and development efforts and?develop more suitable paper-based facing materials for different substrates to play a more significant role.