摘要:
PROBLEM TO BE SOLVED: To provide a biodegradable processed article usable as a food container which is excellent in water resistance and rigidity and a biodegradable composition required in producing the same. SOLUTION: 15-75 mass% of starch, 5-50 mass% of protein, 3-50 mass% of cellulose fiber, 0.5-20 mass% of polyphenol and 0-5 mass% of sodium chloride are mixed together to give the respective contents as specified above. To 100 pts.mass of the resultant mixture, 10-100 pts.mass of water is added followed by well kneading by using, for example, a mixer. Next, the mixture is press-formed into a definite shape such as a cup or a dish and heated at 120-180°C. Thus, a processed article that is excellent in biodegradability can be obtained. COPYRIGHT: (C)2009,JPO&INPIT
摘要:
PROBLEM TO BE SOLVED: To provide an ironstone china the body of which having a water absorption level of easily invaded with filthy water and microparticles is not exposed to its surface and a suitable process for manufacturing it. SOLUTION: In an application process P7, a material forming a porcelain layer having a lower refractoriness than that of the basis material body 42 is coated on a part corresponding to the base 44 of a formed body 52 formed from a raw material to have a required shape. In a biscuit firing process P8, the formed body 52 is biscuit fired, where a porcelain layer 48 substantially having no water absorption is formed at the surface of the base 44. Therefore, a glaze layer 46 is unnecessary to be overlaid on the surface of the porcelain layer 48. In the glazing process P13, the base 44 does not adhere to a refractory setter 62 in case the formed body is directly put on the setter 62. A part which becomes the glaze layer 46 is unnecessary to be supported by a certain holder and an unglazed part caused by the holder is not formed. COPYRIGHT: (C)2004,JPO