Wet-pressed paper trays are very common packaging in the market. At present, the most commonly used white wet-pressed paper trays are white wet-pressed paper trays. However, the whiteness of white paper trays on the market is quite different. How to deal with wet-pressed paper trays to make it more white?
Because the pulp fiber has a yellow to off-white nature, it is difficult to appear pure white even after bleaching. This leads to the fact that although there are many white wet pressed paper tray products on the market, due to the difference in raw materials and processing technology, the paper tray has There is also a big difference in the degree of whiteness. As a professional paper tray manufacturer, Jin Chaoren currently has a mature technology in the production of white wet pressed paper trays. We can share with you the methods of white paper trays.
At present, in the whitening method of wet pressed paper trays, it is more common to choose to add dyes such as royal blue and turquoise blue to the pulp, and make it appear relatively pure white through dyeing and toning. This method is called whitening. For the pulp with higher whiteness, we will use some fluorescent brighteners to increase the brightness of the white color, which can also make the wet pressed paper support play a role in whitening.
In addition to creating brighter white paper trays, Jin Chaoren can also customize different colors as needed. By adding water-based dyes to the original pulp, it can provide customers with diversified wet-pressed paper tray products, so that wet-pressed paper trays Become a more high-end individual lining product packaging!
