| abstract |
(57) [Summary] [Object] The present invention provides a recording device, a writing instrument, or an ink refilling device, which uses a biodegradable plastic as a part of its constitution so as to surely decompose it more quickly. In a recording device, a writing instrument, or a refill device having an ink, an ink storage part, or a part for recording ink with them, a recording device, a writing instrument, or a refill device, which has a part made of biodegradable plastic, It is characterized by containing nutrients to promote. |