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Time-temperature indicator and preparation method thereof

An indicator and time technology, applied in the field of measurement and indication, can solve problems such as research and application gaps

Inactive Publication Date: 2013-07-17
王斌
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The TTIs currently in use are mainly TTIs that require cold chain storage of food, while the research and application of TTIs for storage-resistant foods are still blank

Method used

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  • Time-temperature indicator and preparation method thereof
  • Time-temperature indicator and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0068] The time-temperature indicator according to the embodiment of the present invention is composed of a paper base, a primer layer, an indicator layer, a protective layer and a back coat layer. The paper base is ordinary A4.

[0069] (1) Formula and production coating method of back coating:

[0070] The composition of the back coating is 90% of calcium carbonate and 10% of PVA, which are mixed with a ball mill at high speed and evenly, and coated on the back of the paper base with a coating machine, and the coating amount is 2g / m 2 .

[0071] (2) The formula and coating method of the primer:

[0072] The composition of the bottom layer is calcined kaolin 50%, calcium carbonate 40%, PVA 10%, mixed with a ball mill under high-speed stirring, and coated on the front of the paper base with a coating machine, and the coating amount is 6g / m 2 .

[0073] (3) The formula and coating method of the indicating layer:

[0074]The adhesive polyvinyl alcohol is heated and stirred ...

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Abstract

The invention discloses a time-temperature indicator. The time-temperature indicator disclosed by the invention comprises a back coating, a paper base, a bottoming layer, an indicating layer and a protective layer, wherein the back coating is arranged at one side of the paper base; and the bottoming layer, the indicating layer and the protective layer are sequentially arranged at the other side of the paper base. The invention also discloses a preparation method of the time-temperature indicator. The time-temperature indicator disclosed by the invention can be better applied to monitoring thequality change of storage-resistant food.

Description

technical field [0001] The invention relates to the technical field of measurement and indication, in particular to a time-temperature indicator and a preparation method thereof. Background technique [0002] Time-Temperature Indicator (Time-Temperature Indicator or Time-Temperature Indicator Integrator, referred to as TTI) is a system that indicates changes in food quality by displaying the temperature and time integral values ​​experienced by food through color changes or ribbon movement. TTI indicates the cumulative history of temperature changes and remaining shelf information experienced by food through the color change caused by the time-temperature accumulation effect. It can also be called risk indicator labels, temperature-time indicator cards, etc. The starting point of TTI discoloration is the color at which TTI begins to record the food quality, and the end point of discoloration is the color when the accumulated color of TTI does not continue to change with time...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01K3/04G01N31/22D21H19/82D21H19/84D21H19/38D21H19/58D21H19/40D21H19/64D21H19/60D21H21/14D21H21/28D21H21/02
Inventor 王斌陈潇楠苏喜生黄进于吉平周炎明
Owner 王斌
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