Coating for humidity indicator, method for production of the coating, humidity indicator using the coating

Coating for humidity indicator, method for production of the coating, humidity indicator using the coating

  • CN 101,432,617 B
  • Filed: 04/25/2007
  • Issued: 02/20/2013
  • Est. Priority Date: 04/26/2006
  • Status: Active Grant
First Claim
Patent Images

1. a humidity indicator coating is characterized in that, at least by giving under electronics color-developing compounds, the normal temperature as the acid compound of solid, deliquescence material and aqueous resin emulsion form, wherein,Described acid compound is selected from oxalic acid, malonic acid, p-toluenesulfonic acid,The weight ratio that under the water of this deliquescence material and thing and the normal temperature is the acid compound of solid is 200:

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    1;

    5 scope.

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