[Guar gum supply and sales] The role and advantages of guar gum in papermaking

Guar gum is a free-flowing off-white powder. It is a highly purified natural polysaccharide extracted from guar beans.

Guar gum has always been an effective additive for papermaking. According to its use, it can be divided into pulp addition, surface sizing and coating. Guar gum.

1. Adding guar gum to the slurry has the following advantages:

　(1) Improve the tensile strength of paper;

　(2) Increase surface strength and improve printability;

　(3) Improve the retention rate of fillers and fine fibers;

　(4) Improve Paper formation, guar gum improves the water filtration performance of the paper machine mesh through micro-flocculation, and the paper formation will not be destroyed;

(5) Reduce the difference between the two sides of the paper; “Improve the interlayer bonding strength of the cardboard.

2. Used for surface sizing and coating The guar gum in cloth can especially improve the surface properties of paper:

(1) It can improve the surface strength of paper and improve printing suitability. property and has no effect on the air permeability of the paper;

　(2) Improve oil resistance and solvent resistance;

　(3) Improve the stability of surface sizing liquid;

　(4) Improve coating performance;

(5) Improve the glucophilicity of the paper surface. The guar gum used for coating can improve the performance of the coating:

　(6) Improve the water retention of the coating;

　(7) Improve the rheology of the coating.