Sizer And Its Related Technologies Surface sizing is more or less the meaning of self-evident. Size does not make paper waterproof, but only delay the penetration of water. Surface sizing you can achieve the same effect. On a specific paper, there are many other reasons with surface sizing. Surface sizing but perhaps should give a definition. Sizing agent on the surface of paper or film-forming materials has been formed on the coating effect. Sizing agents include methyl cellulose and starch adhesive, polyvinyl alcohol, Chun. Starch is the most widely used surface sizing agents. Specific sizing agents can also join various pigments in the formula.50040

Writing paper sizing was originally designed to prevent opening and tip of stirring up the fibers in the paper with ink. Paper sizing, is designed to make it more suitable for writing and printing without the sizing of surface. Advanced culture paper sizing can get a good sense of beauty. Many printing paper size to stick in the tight loose fibers and prevent the printing press appeared off powder and sticky rolls. Sizing can also give the paper to a certain strength, for this reason, some cardboard on the surface sizing. Ready to coated paper can also be sized to prevent paint penetration within the structure of the paper, and applied coatings provide a good paper. Some paper used to enhance the characteristics of the materials placed on the paper surface may be more effective than directly added into the structure of paper.  

Surface size common in cadres of middle size press-drying adhesive material applied to the paper. In addition to no blanket, its shape looks like a wet press, and got its name because of its upright roller set. The top roll is hard and bottom roll is much more soft rubber roller. Already drying the paper roll into first contact pressure between two rollers. Two roller of feeding tubes for roll surface lose to glue or suspension. Above in paper form a glue, excess glue from under the pressure along the roller facing indecent to the pool again for recycling. Sizing control by pressure zone size press. Hard top roll the soft bottom of roll deformation, wider, formed the excess glue cannot be pressure. When the paper through the press area, and glue to hold the structure SAG on rough paper and paper itself. Trapped in the paper and stick roll of film in the press area, and drag on the paper from the roller surface is split at the time, with some of the rubber remain in the region on the roller. 

And in the formation of compound film time of Cesarean section adhesive, fracture and shrink it back to paper, which will lead to bad formation on the surface. Following impact analysis paper in a Flash the hanging plastic of some factors, but first had to explain the horizontal sizing machine. In this configuration, the paper from the top into full of glue, by pressure and below. Paper must bypass a roller forward to sizing and drying section. Horizontal size press to make paper Sizing more evenly on both sides. 

Paper first before entering the area by rubber, pressure in the pressure zone and then left the area. Indicates that a rubber membrane in between the paper and roll part. When in between roller and paper compound film profile points will form a plastic wire. Plastic wire breaking and formation of stalactites and stalagmites-like structure, and if they break down to the surface. These rubber based adhesive on the material properties of the sizing of paper forms is not good form. Sizing pressure pad area can be pided into three stages: absorbing, compression and shear .

While targets for surface strength of inner strength and surface sizing is at the expense of excessive drying of the paper before the sizing process. But in order to achieve the required strength of paper, do not always need to dry the paper. In the future, may be expected in part with surface sizing of paper machine forming, pressing and rolling or combined to shorten the drying cycle.