Title:
INK STORAGE MEMBER FOR WRITING MATERIALS
Document Type and Number:
Japanese Patent JP3788612
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an ink storage member for a writing materials, preventing a deterioration of an ink due to permeation of oxygen and nitrogen in air, suppressing a blow-out and foam generation of the ink, improving an outflow stability of the ink, improving a smell-keeping property of the ink containing an essence, preventing writing poor by a decrease of an inner pressure in the ink storage member of a pressure type of writing materials, and preventing the deterioration of the ink due to water vaporization of a water base ink and moisture absorption of an oil base ink.
SOLUTION: The ink storage member, that is an ink storage member A containing the ink for the writing materials, is composed of a multi-layer structure which is composed of an organic polymer layer 11a consisting of an organic polymer and an inorganic compound layer 11c consisting of an inorganic compound.
Inventors:
Kenji Sato
Masaru Miyamoto
Masaru Miyamoto
Application Number:
JP2002339547A
Publication Date:
June 21, 2006
Filing Date:
November 22, 2002
Export Citation:
Assignee:
MITSUBISHI PENCIL CO.,LTD.
International Classes:
B43K5/02; B43K7/02; B43K7/03; B43K7/08; B43K8/02; B43K8/03; (IPC1-7): B43K7/02; B43K5/02; B43K8/02
Domestic Patent References:
| JP9141180A | ||||
| JP5084236B2 | ||||
| JP7149337A | ||||
| JP2239997A |
Attorney, Agent or Firm:
Eisuke Fujimoto
Masayoshi Kanda
Akio Miyao
Masayoshi Kanda
Akio Miyao