Paper Additives

Dry strength agent It is widely used in Packing paper (corrugated paper, kraft paper, yarn tube base paper, etc.), culture paper and other paper making. It produces enough dry strength to allow the use of cheap fibre raw materials or a higher proportion of secondary fibres. Paper dry strength agent is a kind of RT - 220 with the mesh structure of amphoteric polyacrylamide kind paper with dry strength agent, at the same time in the macromolecular structure chain contains Yin and Yang two functional groups, not only for miscellaneous ion of strong anti-jamming capability, and special mesh structure than the linear structure of polyacrylamide type dry strengthening agent can more effectively improve the ring crush strength of paper, tensile strength, resistance to broken degrees and bonding force between the layers, and has a good retention, leaching effect.

Cationic starch belongs to chemically modified starch, which is prepared by the reaction of cationic etherifying agent with starch under alkaline conditions. It is a starch ether derivative containing amino group and positive charge on nitrogen molecule produced by etherification reaction between various organic amine compounds containing halogen group or epoxy group and hydroxyl group in starch molecule. Cationic starch mainly includes tertiary amine salts and quaternary ammonium salts. Its raw materials are widely distributed in nature, such as corn, potato, cassava and wheat. Because cationic starch has positive charge and is easy to combine with negatively charged fine fibers, it has many characteristics that raw starch does not have, such as paste stability, water solubility, film-forming, transparency and so on, which makes cationic starch have great uses. In addition, cationic starch has the characteristics of low gelatinization temperature, easy dispersion, high viscosity and good thermal stability.

Mineral fibers are fibers obtained from mineral rocks with fibrous structure. The main components are various oxides, such as silica, alumina, magnesium oxide, etc. their main sources are various asbestos, such as chrysotile asbestos, crocidolite, etc. Based on a brief overview of mineral fibers, several common mineral fibers are introduced, such as aluminum silicate fiber, glass fiber, gypsum fiber, carbon fiber and so on. Mineral fiber is more and more widely used in paper industry. Some of its excellent properties can make the paper have the function that plant fiber does not have.

Industrial fungicide, which can simultaneously prevent mold, bacteria and algae, is one of the most effective fungicides in the industrial field. It can be added to PVC products, plastic products, PVC flooring materials, wall coatings, paints, inks, papers, etc.