Papermaking filler coating modification machine surface coating machine powder drying machine

Release time:

2025-04-01 09:09

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With the development of the papermaking industry, the requirements for the variety and performance of paper are becoming increasingly diversified. Many paper fillers, such as kaolin and calcium carbonate, have weak binding forces with fibers before modification. The coating modification machine, through surface chemical modification technology, can coat a special substance on the surface of the filler, changing its surface properties. For example, by adding fiber-affinity groups to the surface of kaolin, the interaction between the filler and the fiber is enhanced, so that during the papermaking process, the filler can bind more closely with the fiber, improving the physical properties of the paper, such as tensile strength and tear strength. Taking the production of high-quality writing paper and printing paper as an example, the coated and modified filler can enable the paper to withstand greater frictional force during writing and printing without being easily damaged.

Uneven particle dispersion of paper fillers will affect the uniformity of paper quality. The coating modification machine uses advanced dispersion technology, such ashoneycomb grinderetc., while coating and modifying the filler, ensuring that the filler particles are evenly dispersed in the pulp. This ensures that the filler is evenly distributed in the paper, avoiding problems such as uneven whiteness and smoothness of the paper due to filler agglomeration. For example, in the production of coated paper, uniformly dispersed fillers can make the paper surface smoother, improve the ink adhesion effect, and make the printed patterns clearer and the colors more vivid.

For some papers with special functional requirements, such as antibacterial and conductive papers, the coating modification machine can impart special functions to the filler by coating substances with corresponding functions on the surface of the filler. For example, coating an antibacterial agent on the surface of calcium carbonate filler can effectively inhibit bacterial growth when used in the production of food packaging paper, ensuring food safety; coating conductive substances on the surface of certain fillers is used in the production of electronic packaging paper to meet its requirements for electrostatic protection.

The coating modification machine can flexibly modify different types of paper fillers by adjusting the coating materials and process parameters to meet the needs of producing different types of paper. Whether it is the production of cultural paper, printing paper, or special paper, the filler can be treated specifically through the coating modification machine, providing greater production flexibility for papermaking enterprises.

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