The papermaking aid can make the fiber evenly suspended in the water, so that the paper is uniform in thickness. Also known as "suspending agent" or "paper medicine." In the process of pulping, the addition of "paper medicine" allows the fibers to be uniformly suspended in the water, so that the paper fibers are uniformly distributed and the thickness is uniform. It has the same chemical composition as the vegetable gum, has no toxicity, is used in a small amount, is slippery and not sticky, smells unscented, and gradually evaporates without pollution. 【Instructions】 1. Slowly sprinkle a small amount of tree flour in the water and gently stir it. It can be sprinkled and stirred several times. After it appears like a protein consistency, it is a tree paste. It can be used (remember to stir) Don't force too much to stir up the bubbles, otherwise the bark powder will cake.) 2. The consistency and proportion of the tree paste are not certain and can be adjusted according to personal preference. 3. When using, add the adjusted bark to the paper-making paper tank and mix well to exceed the thick and even paper. The proportion of the paper is determined by the habit of personal paper making.