| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an ink housing member for a writing instrument, which can prevent an ink from being deteriorated by making oxygen in air permeate the ink housing member for writing instrument, such as an ink housing container for the writing instrument and an ink housing pipe, for housing the ink for the writing instrument, for example, a liquid ink such as a water-based or oil-based ink, or a gelatinous ink, and which can prevent blowoff of the ink. <P>SOLUTION: This ink housing member A for the writing instrument, which is composed of an organic polymer so as to house the ink for the writing instrument, is characterized in that a coated layer 11b of which the oxygen permeability coefficient is 10<SP>-10</SP>(cc.cm/cm<SP>2</SP>.sec.cmHg) or less in a dry state at 25°C, is formed in an outside surface part of the ink housing member 11a for the writing instrument. <P>COPYRIGHT: (C)2003,JPO |
