| 摘要 |
PROBLEM TO BE SOLVED: To provide a cooking auxiliary for cooking a lignocellulose material by which pulp yield and pulp quality (e.g., whiteness, specific tear strength, specific burst strength and reduction of a kappa value) are extremely improved. SOLUTION: The cooking auxiliary for cooking the lignocellulose material contains an organic acid (A) and/or a salt thereof. The component (A) is preferably an aminocarboxylic acid (A1) and/or an hydroxycarboxylic acid (A2). The cooking auxiliary preferably contains a water-soluble polymer (B) having 14-24 solubility parameter and/or a surfactant (C) having 6-18 HLB besides them. The component (C) is preferably at least one kind selected from the group consisting of a nonionic surfactant (C1), an anionic surfactant (C2) having at least one kind of a sulfo group, a sulfoxy group and a phosphono group, and an ampholytic surfactant (C3). COPYRIGHT: (C)2009,JPO&INPIT
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