Regeneratable dehumidifying bag having doubly-protected humidity indicator

a humidity indicator and regenerative technology, applied in the direction of preventing decay, separation processes, and investigating moisture content, can solve the problem of losing the color-changing effect of the humidity indicator

Inactive Publication Date: 2012-03-15
HSU TSANG HUNG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

1.When heating or regenerating the pouch after being saturated with moisture, the water vapor as vaporized may penetrate the color-changeable marking of the humidity indicator to moisten, dissolve and remove the cobalt chloride, to thereby fade the marking color of the humidity indicator gradually.
2. The user, when touching the marking of the humidity indicator, may wet the cobalt chloride by his or her sweat to dissolve and remove the cobalt chloride, thereby losing its color-changing effect of the humidity indicator.
3. The cobalt c

Method used

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  • Regeneratable dehumidifying bag having doubly-protected humidity indicator
  • Regeneratable dehumidifying bag having doubly-protected humidity indicator
  • Regeneratable dehumidifying bag having doubly-protected humidity indicator

Examples

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Embodiment Construction

[0012]As shown in the drawing figures, the present invention comprises: a water-vapor permeable pouch or bag 1, a desiccant material 2 selected from silica gel or other water-vapor absorbing materials filled in the pouch 1, and a doubly-protected humidity indicator 3 printed or coated on an outer surface of the pouch 1 and capillarily communicated with the desiccant material 2 in the pouch 1.

[0013]The pouch 1 in made of water-vapor permeable materials for capillarily passing water vapor and air through a thickness of the pouch. The materials such as high density fibrous member, knitted sheet, woven or non-woven cloth having porosity or capillary pores formed therethrough are preferable. The pouch 1 may be well closed for sealably storing the desiccant material 2 therein without leakage.

[0014]The doubly-protected humidity indicator 3 of the present invention comprises: a color-changeable pattern 31 printed or coated on an outer surface of the pouch 1; and an air or vapor permeable tr...

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Abstract

A dehumidifying bag includes a water-vapor permeable pouch 1, a desiccant material 2 filled in the pouch 1 for absorbing moisture through the pouch for dehumidifying a surrounding wherein the pouch 1 is placed, and a doubly-protected humidity indicator 3 printed on an outer surface of the pouch 1 for reminding an user for replacing or regenerating the desiccant material 2 when saturated by moisture.

Description

BACKGROUND OF THE INVENTION[0001]European patent application No. 08250385.5, also invented by the present inventor, disclosed a regenerative dehumidifying bag having a humidity indicator printed on an outer surface of the pouch, whereby upon saturation of water vapor as absorbed by the desiccant material in the pouch, a color-changeable marking of the humidity indicator changes the color for reminding the user for replacing or regenerating the desiccant material in the pouch.[0002]However, such a prior art has the following drawbacks:[0003]1.When heating or regenerating the pouch after being saturated with moisture, the water vapor as vaporized may penetrate the color-changeable marking of the humidity indicator to moisten, dissolve and remove the cobalt chloride, to thereby fade the marking color of the humidity indicator gradually.[0004]2. The user, when touching the marking of the humidity indicator, may wet the cobalt chloride by his or her sweat to dissolve and remove the cobal...

Claims

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Application Information

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IPC IPC(8): B65D81/26B65D85/00
CPCB01D53/261B01D2253/106B01D2253/112G01N31/222B01D2255/20761F24F3/1411B01D2255/20746
Inventor HSU, TSANG-HUNG
Owner HSU TSANG HUNG
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