| 摘要 |
PURPOSE:To obtain the subject tissue paper free from a fault in use such as breaks or holes and having a tensile strength equal to that of a box tissue without damage to formation, touch, etc., by adding a weakly cationic dialdehydestarch to a raw pulp and subsequently carrying out papermaking thereof. CONSTITUTION:A raw pulp is charged in a beater and treated using a refiner and a weakly cationic dialdehydestarch is subsequently added thereto in an amount of 0.1-0.4% based on the raw pulp followed by sufficient mixing. The resultant mixture is then subjected to papermaking using a jet former type tissue papermaking machine, etc., in conditions of 140cm paper width, 200m/min paper speed and 20% crepe ratio, thus obtaining the objective tissue paper having 12.5-16.5g/m<2> weight, excellent in tensile strength and dispersion in water and capable of throwing into a water closet. |
