① sizing of surface properties (water degrees): writing ink paper surface to prevent penetration and diffusion of performance, writing paper is very important. In drawing pen dipped in ink special brand of carbonless paper, scribing paper Carbonless Paper, the maximum width of the non-proliferation and impermeable line (mm) Fig. ② smoothness: Under certain vacuum degree, a certain volume of air in the gap by the time the sample surface at a constant pressure between the glass surface required, expressed in seconds. ③ surface strength: offset printing paper to prevent paper lint-paste version, requires a better surface strength of the sheet. Wax paper to pull the rod pressure until the wax sticks attached fiber series carbonless paper, can also be printed applicable measurement speed express their nap. Drawing paper, tracing paper the measure of its resistance to rubbing force, are in the detection of tissue paper surface bonding strength. Chemical performance ① Water: Paper contains at 100 ~ 105 ℃ in water can evaporate weight to that of paper weight percentage. ② Ash: paper by weight of the residue after burning pattern oven dry sample weight expressed as a percentage. ③pH value: pattern was immersed in distilled water for 95 ~ 100 ℃ for 1 hour, to obtain a water extract pH. The chemical properties of indicators is particularly important for electrical and technical paper. Ordinary carbon paper, Jinzhou Paper (online consultation), carbon-free paper provided by the Xinxiang City, New Materials Co., Ltd. Jinzhou. Xinxiang City, New Materials Co., Ltd. Jinzhou (www.hnjinzhou.com) Henan Xinxiang, a leader in paper and paper processing, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs . Jinzhou Paper in leadership with the staff warmly welcome all inquiries negotiations to create a better future Jinzhou Paper.