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Time process indicating device and its forming method

A technology of time history and indicating devices, which is applied in the direction of material analysis by observing the influence of chemical indicators, testing food, and analyzing by making materials undergo chemical reactions, which can solve the problems of high price and inconvenient use

Inactive Publication Date: 2008-12-17
林唯芳 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Currently commercialized products include VITSAB 、Life Lines , 3M TM 、DeltaTrak 、OnVu TM etc., its working principles include enzyme catalysis, diffusion mechanism (diffusion), solid-state polymerization (solid-state polymerization), etc., often have the disadvantages of inconvenient use and high price

Method used

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  • Time process indicating device and its forming method
  • Time process indicating device and its forming method
  • Time process indicating device and its forming method

Examples

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no. 1 example

[0060] The first embodiment of the present invention discloses a method for forming a time history indicating device. Firstly, a background layer material is provided, and the background layer material includes a first polymer adhesive, a base material and a background layer. A background color rendering material, wherein the base material is colorless and the background color rendering material represents a background color. The above-mentioned base material may comprise one of the following groups or any combination thereof: paper, plastic film, metal film, glass, metallized paper or plastic film, metal oxide-coated paper, and the like. The above-mentioned first polymer binder and background layer chromogenic material will be described in detail later.

[0061] Then, the background layer material is coated on a substrate and dried to form a background layer on the substrate; wherein, the background layer represents the background color. The material of the above-mentioned s...

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Abstract

The invention provides a time history indicating device, which comprises a substrate, a background layer formed on the substrate, and a time history indicating body formed on the background layer, wherein the time history indicating body and the background layer are bonded to each other by physical or chemical bonds via a polymer binding agent. In addition, the color of the time history indicating body in the initial state is different from the background color and the color thereof in the terminal state is the same as the background color, so that the time history indicating body can blend in with the background color so as not to be easy to identify visually, thereby achieving the effect that the time history indicating body disappears into the background layer so as to facilitate indicating the terminal of a time history to be indicated.

Description

technical field [0001] The present invention relates to an indicating device, in particular to a time course indicating device and a forming method thereof. Background technique [0002] It is generally believed that as long as food is still within its shelf life, it should be safe to eat, but this is not the case. For example, the temperature of the environment where food is stored is too high, and the food is directly exposed to the air for a long time, etc., which may cause a large number of bacteria to multiply or food to spoil, which will affect human health. In order to protect consumers from accidentally eating spoiled food, many companies and academic institutions are investing in the research and development of new packaging technologies that can indicate whether food has spoiled, such as: Time-Temperature Indicator (TTI), whose function is to indicate by color change The temperature and time changes of products (such as: food) in the process of storage, transporta...

Claims

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Application Information

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IPC IPC(8): G01N21/78G01N33/02
Inventor 林唯芳尤莉雅·加拉汉
Owner 林唯芳
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