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Humidity indicator

An indicator, humidity technology, applied in the direction of instruments, physical instruments, scientific instruments, etc., can solve the problems of performance impact, humidity indicators are not easy to be charged, and achieve the effect of preventing the impact

Inactive Publication Date: 2011-01-19
山川洋一
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  • Abstract
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Problems solved by technology

[0009] Moreover, for electronic components, the performance of other components or packaging materials in a charged state may be affected due to the proximity of electronic components, and powder dust is likely to adhere to components in a charged state due to static electricity. In the sense of the influence of dust and the influence of dust, it is hoped that the humidity indicator itself will not be charged as much as possible

Method used

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Examples

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Embodiment 1

[0030] In the attached picture, Figure 1 ~ Figure 4 It is a figure which shows one Example of this invention.

[0031] The humidity indicator I for visually judging the humidity is composed of a flat humidity judging plate P and a cover C covering it.

[0032] The humidity judgment board P includes base paper B made of filter paper such as hygroscopic filter paper, and cobalt chloride Co held on the base paper B. This base paper B is formed into a card shape (a square in the illustrated example), and a plurality of humidity judging surfaces M1-M4 are arranged on the surface of the base paper B, and cobalt chloride Co is exposed on the plurality of humidity judging surfaces M1-M4, Humidity judgment is performed by the degree of discoloration of cobalt chloride Co on the humidity judging surfaces M1 to M4.

[0033] In the illustrated example, the cobalt chloride Co exposed on the first humidity judging surface M1 is pre-adjusted to remain blue when the humidity of the atmospher...

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Abstract

The invention provides a humidity indicator, which is provided with humidity determining surfaces (M1-M4) on the surface of a paper humidity determining plate (P) and determines humidity according to color change of humidity determining surfaces (M1-M4). The humidity indicator has a first film (F1) covering the surface of a humidity determination plate (B) and a second film (F2) covering the back surface of the plate (B). At least between the first film (F1) and the surface of the humidity determination plate (B) is formed a flat air layer (Au) on which the entire surfaces of humidity determination surfaces (M1-M4) exposing cobalt chloride (Co) are faced, and small holes (H) allowing the air layer (Au) to directly communicate with the atmosphere are formed with intervals in the first film (F1). First and second films (F1, F2) extend from outer periphery of the humidity determining surface plate, are directly engaged (m) on outer peripheral portions (F1a, F2a) and pressed on the humidity determining plate (P) to enclose area corresponding to the air layer.

Description

[0001] This application is a divisional application, the international application number of the original application is PCT / JP2004 / 017979, the international application date is November 26, 2004, the Chinese national application number is 200480035345.5, and the date of entry into China is May 29, 2006 , the name of the invention is "humidity indicator". technical field [0002] The invention relates to a humidity indicator, which uses the discoloration effect of cobalt chloride corresponding to humidity changes for humidity judgment. Background technique [0003] As the above-mentioned humidity indicator, a humidity indicator having the following structure is conventionally known. For example, a humidity judgment surface is provided on the surface of a humidity judgment board. The humidity judgment board is formed by holding cobalt chloride on a base paper. Exposed on the humidity judging surface, according to the discoloration (blue→pink) of the cobalt chloride on the hum...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/81G01N31/22G01N31/00G01N21/77G01N21/78
CPCG01N31/222Y10S116/41G01N21/81G01N31/22G01N31/00G01N21/77G01N21/78
Inventor 山川洋一
Owner 山川洋一
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