to print adversely. Generally, a4 paper and paper deformation rate of the fiber type and paper production

related. Rag pulp paper grades deformation small, large chemical wood pulp paper create deformation unbleached

chemical pulp is more easily deformed than bleached chemical pulp. Second, the aging of a4 paper archives in

archives and use the process, archive a4 paper gradually undergoing irreversible change in appearance, structure and

properties of the various aspects, known as "aging" or "worsening." a4 paper aging embodied in three aspects,

namely, color, strength decreases and changes in chemical properties. 1. File a4 paper acidic hydrolysis of

cellulose. A4 paper archives department at all levels of the majority of the existing archives containing acid. Acid

is the most important factor causing Archives a4 paper aging and even chalking. Because the archives acid catalyzed

hydrolysis of cellulose degradation. Archives acids from:n the paper production process, such as mechanical

papermaking c