| 摘要 |
PROBLEM TO BE SOLVED: To provide a material for paper coating composition and to provide a method for producing the same and to provide a composition for paper coating. SOLUTION: The material for paper coating composition comprises albumen and water with 1-3 times by mass of the albumen. The material for paper coating composition contains albumen and water with 1-3 times by mass of the albumen, and obtained by heating at 75-98°C with pH of 9.5-11.5. The method for producing the material for paper coating composition comprises a process preparing an aqueous solution of albumen by diluting the albumen with 1-3 times by mass of water, and a process heating the albumen solution at 75-98°C with pH 9.5-11.5. Figure is an example of measurement for the amount of syneresis of foam. In the drawing, 100 is a measuring cylinder, 110 is the foam in the material for paper coating composition, 120 is the aqueous solution of albumen generated by syneresis, and 130 is graduation. COPYRIGHT: (C)2006,JPO&NCIPI
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