| 摘要 |
PURPOSE:To obtain a supporting body which can provide a product inexpensive and free from curl with a higher printing durability preventing elongation during the printing by adding a cationic synthetic resin emulsion to a wood pulp slurry to make a paper. CONSTITUTION:A cationic synthetic resin emulsion (preferably, a stylene-butadiene copolymer or an ester acrylate based copolymer emulsion) is added to a wood pulp slurry preferably in the amount of 20-100 part in the form of solid with respect to 100pts.wt. of the pulp and at the same time, an inorganic pigment sich as aluminum sulfate, clay, calcium carbonate, titanium oxide and an assistant such as polyamide epichlorohydrine resin are done so as required. The mixture is made a paper to obtain the intended supporting body. EFFECT:This product is so excellent in the water resistance that it can be reduced to less than 0.3% in the elongation when contacting a damping water during the printing while protected from damage thereby providing a printing durability equivalent to 10,000-20,000 sheets. |
