Period lapse display body |
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| 申请号 | JP5329788 | 申请日 | 1988-03-07 | 公开(公告)号 | JPH01250090A | 公开(公告)日 | 1989-10-05 |
| 申请人 | Toppan Printing Co Ltd; | 发明人 | MATSUDAIRA OSAHISA; KAWAMOTO KENJI; KOBAYASHI MASAYOSHI; YASUDA KOICHI; | ||||
| 摘要 | PURPOSE: To provide the period lapse display body which is capable of indicating the period to about one year by adding a diffusion delaying agent which is hardly affected by light, humidity, etc., and delays the diffusion of a dyeing material into an agar gel. CONSTITUTION: A sealing material 3 of the agar gel added with carrageenin as the diffusion delaying agent is packed into a body 1 and a basic dye 4 for coloring the sealing material 3 is packed into a cap body 2. A user starts display by cutting the body 1 at a cutting line 6, removing the hermetic cap of the cap body 2 and coupling both at the time of starting the period display. The dyeing material 4 of the cap body 2 diffuses into the sealing material of the body 1 and the body 1 appears as if said body is colored successively and therefore, the termination of the period is displayed from the degree of the progression of the coloring. COPYRIGHT: (C)1989,JPO&Japio |
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| 权利要求 | |||||||
| 说明书全文 | |||||||
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