Effects of polyvinylamine prepared by basic hydrolysis of poly(N-vinylformamide) on paper strength, drainage and retention of reed pulp and wheat straw pulp were investigated.
(4) if in a hurry to business card printing and membership card, you can use the talcum powder stuccoing incision in the pressure-sensitive paper, plastic drying.
Second process: After operated by the front forward gas baffler, the paper reciprocates to the drum of the second layer to perform flanging of the backside.
Third process: After operated by the back forward gas baffler, the paper reciprocates to the drum of the third layer to perform flanging of the front side.
In addition, the paper for beating degree, firmness and filling, sizing, and so on, with the crimpness, self-crimping to marketizing of paper also focuses on the papermakig process.