MEMBER FOR HOLDING CYLINDRICAL CONTAINER TO BE DECORATED
申请公布号:JPH1119572(A)
申请号:JP19970173370
申请日期:1997.06.30
申请公布日期:1999.01.26
发明人:UKEKAWA JIHEI;OTA SENJI;HIGUCHI MATSUO
分类号:B41F17/22;B05C13/02;C23C16/26;C23C16/27;(IPC1-7):B05C13/02
主分类号:B41F17/22
摘要:PROBLEM TO BE SOLVED: To provide a holding member, for a cylindrical container to be decorated, which has a DLC coat (diamond-like carbon: hard carbon) of high wear- resistance with no adverse effects to damage the inner peripheral face of the cylindrical container and outstanding adhesion properties, and further, diminishes the extent of metal coagulation/settlement and serves as a member for the cylindrical container allowing the repetition of precise printing over a long time. SOLUTION: This holding member for a cylindrical container to be decorated comprises a metal sleeve body for a mandrel, a ceramic sleeve of a silicon nitride sintered material which is of a cylindrical shape and has an outer surface roughness Rmax of 0.4μm or less and further, is fitted into the outer peripheral part of the sleeve body, a DLC coat and/or a diamond coat formed on the outer surface of the ceramic sleeve. The thickness of the coat is 0.1-150μm and the surface roughness Rmax is 0.25μm or less. In addition, when observed microscopically, no pore having an area of 3×10<-4> mm<2> or more is found and in the visible field of 800μm×600μm, five or less pores having an area of 7×10<-5> -3×10<-4> mm<2> are found.
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