• Company : Kemii Paper Co.,ltd,
  • Region : Annaba , Algeria
  • Category : Chemicals > Chemicals for Daily Use
  • Contact Person : zhanghui|||zhanghui
  • Telephone :
  • Fax :
  • Mobile phone :
  • Email : [email protected]
  • Instant Messenger : fdgdfg
  • Update : Nov/29/2014
  • Product Details

    rate and extent. In processing old newspapers pulp compound, which contains high-yield mechanical pulp, including chemical thermo mechanical pulp and pressure groundwood pulp, retain a higher lignin fibers stiffened. After crushing machinery processing, fiber becomes more supple and micro fibrosis, help bond the fiber structure can ferreted out closer, smoother newsprint. US factory had old newspapers with 25 shaped extension of deinking pulp and CTMP pulp with 75 Newsprint, a4 paper quality than the 100 Extension of CTMP pulp newsprint made good copy. But old newspapers chemical pulp fibers in a paper due process had been bonded to the fiber structure itself dense, reducing the number of cavities, hard surface hydration, fiber becomes "stiff", viscosity reduction, a decrease paper strength . Laboratories and factories Practice has proved that the number of cycles increases paper, the physical strength of the paper pulp declines linearly, each cycle, burst, and tensile strength of the fiber pulp strength decreases to 60 to 70 Peng . Thus, the paper feed back loop with a single fiber is a certain limit. In China, the use of waste paper, especially after inking regenerated papermaking a4 increases the number of myopia, notepad printing began to move toward the eye direction, printing a4 paper choose from a scientific point of view, to reduce the harm of excessive use of eyes. Notebook notepad office making use of a4 paper and the market is the same, usually white, which is why we subconsciously notepad a4 paper that some of the colors, "black and white" is a long presence in people's minds the truth, but because now working pressure, the office staff time increases, the need for a long time in front of the office notepad, a lot of people in the work appeared dry eyes, fatigue, vision loss and, therefore, the printing industry according to the current scie