The effects some of chemical solvent on removal stains

Paper has been made from many different substances (such as wood, cotton, Linn and grasses) and in many different ways. The stability of paper depends on which fibre and manufacturing process was used and which surface treatment (e.g.sizing) was applied. Obviously then, different types of paper may need different conservation Treatments.Cleaning and removal of dirts, stains may be removal tow mechanical and chemicals solvents. Old stains that have changed and as oxidized are very difficult and of impossible to remove. All the cleaning that is necessary paper may also be cleaned with water, but any document not, in this case we must used another method. If more thorough cleaning is required it should be done only by a conservator. The term cleaning and removal stains refer to a Varity of conservation procedures. The simplest of method is surface as dry cleaning, which done with soft brush as an erasing compound. The most complex cleaning procedures involve chemicals.