Humidity control container

Humidity control container

  • CN 109,071,094 B
  • Filed: 04/10/2017
  • Issued: 07/30/2021
  • Est. Priority Date: 05/27/2016
  • Status: Active Grant
First Claim
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1. A humidity control container made of synthetic resin, having a storage chamber for storing contents and a pinch-off portion at a bottom, the humidity control container comprising:

  • an innermost layer which defines the accommodation chamber;

    an outermost layer disposed outside the innermost layer; and

    a moisture-absorbing layer disposed between the innermost layer and the outermost layer and containing a moisture-absorbing inorganic filler,the innermost layer is formed of a material having an MFR of 0.3 to 1.3,the thickness of the innermost layer is smaller than the thickness of the outermost layer and the thickness of the moisture absorption layer,the thickness of the innermost layer at the pinch-off portion is 4% or more of the thickness of the wall portion,the moisture absorption layer has;

    a first moisture-absorbing layer containing calcium oxide; and

    a second moisture absorption layer which is disposed outside the first moisture absorption layer and contains magnesium sulfate,an intermediate layer containing no hygroscopic inorganic filler is disposed between the first moisture-absorbing layer and the second moisture-absorbing layer,the outermost layer has an MFR of 0.3 to 0.6, the first moisture-absorbing layer has an MFR of 0.5 to 1.5, the second moisture-absorbing layer has an MFR of 0.3 to 0.6, and the intermediate layer has an MFR of 0.3 to 0.6.

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