High light resistance color change indicating device

A technology of color change indication and light resistance, which is applied in the direction of material analysis by observing the influence of chemical indicators, and analysis by making materials undergo chemical reactions. Narrow and other issues

Active Publication Date: 2022-02-11
SHENZHEN NINE STARS PRINTING & PACKAGING GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These existing color change indicator devices all use reactive dyes as color change indicators. Reactive dyes have poor light resistance and fade in a few minutes in sunlight and within a few weeks in indoor lighting, resulting in narrow applicability.

Method used

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  • High light resistance color change indicating device
  • High light resistance color change indicating device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] The structure of the high light resistance color change indicating device of embodiment 1 is as follows: figure 2 As shown, including base layer, indicator layer, protective layer, adhesive layer, barrier layer, adhesive layer and release layer.

[0050] Wherein, the material of the base layer is PET with a thickness of 0.1 mm.

[0051] The indicating part is formed by drying the indicating ink after printing, and the indicating ink includes 5 parts of ferrocene, 1 part of magnesium chloride, 30 parts of water and 30 parts of hydroxymethyl cellulose. The indicating portion is circular with a diameter of 10 mm and a thickness of 0.01 mm. The reference part is in the form of a ring, which is set around the indicating part. The inner diameter of the reference part is 12mm, and the outer diameter is 20mm. The reference part includes three colors of orange-yellow, light orange and light yellow, respectively providing the start color, middle color and end color of the indi...

Embodiment 2

[0059] The structure of the high light resistance color change indicating device of embodiment 2 is as follows: figure 2 As shown, including base layer, indicator layer, protective layer, adhesive layer, barrier layer, adhesive layer and release layer.

[0060] Wherein, the material of the base layer is PET with a thickness of 0.3mm.

[0061] The indicating part is formed by drying the indicating ink after printing, and the indicating ink includes 40 parts of cobalt dicene, 5 parts of sodium chloride, 70 parts of ethanol and 60 parts of butyl acrylate. The indicating portion is circular with a diameter of 10 mm and a thickness of 1 mm. The reference part is in the form of a ring, which is set around the indicating part. The inner diameter of the reference part is 12mm, and the outer diameter is 20mm. The reference part includes three colors of purple black, purple, and light purple, respectively providing the start color, middle color and end color of the indicator part.

...

Embodiment 3

[0069] The structure of the high light resistance color change indicating device of embodiment 3 is as follows figure 2 As shown, including base layer, indicator layer, protective layer, adhesive layer, barrier layer, adhesive layer and release layer.

[0070] Wherein, the material of the base layer is PET with a thickness of 0.3 mm.

[0071] The indicating part is formed by drying after printing the indicating ink, and the indicating ink includes 20 parts of vanacene, 3 parts of sodium chloride, 40 parts of isopropanol and 40 parts of methyl methacrylate. The indicating portion is circular with a diameter of 10 mm and a thickness of 0.1 mm. The reference part is in the form of a ring, which is set around the indicating part. The inner diameter of the reference part is 12mm, and the outer diameter is 20mm. The reference part includes three colors of purple black, purple, and light purple, respectively providing the start color, middle color and end color of the indicator pa...

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Abstract

The invention relates to a highly light-resistant color change indicating device. A high light resistance color change indicator device, comprising: a base layer; an indicator layer laminated on the surface of the base layer, the indicator layer includes an indicator part, the indicator part contains a volatile material and a hydrophilic material, and the volatile material At least one selected from ferrocene, cobalt, vanadium and chromocene, the hydrophilic material can absorb water vapor in the air; and a barrier layer, attached to the surface of the indicator layer and It can be peeled off from the surface of the indicator layer; wherein, both the base layer and the barrier layer can block water vapor and volatile materials. The above-mentioned highly light-resistant color change indicating device has strong light resistance and wide applicability.

Description

technical field [0001] The invention relates to a highly light-resistant color change indicating device. Background technique [0002] General products have a service life or shelf life, especially perishable products such as food, beverages and medicines are prone to spoilage during storage. In order to reduce the oxygen in the packaging and avoid deterioration in an oxygen environment, vacuum packaging or air conditioning are usually used. Packaging, and print the date of manufacture and shelf life on the outer packaging for people to judge whether it is expired. However, if the product package is opened or used, how to effectively record the time of opening or use is particularly important. [0003] At present, the color change indicator devices on the market are roughly divided into several types: enzyme reaction color change indicator devices, oxygen sensitive color change indicator devices, carbon dioxide sensitive color change indicator devices, acid sensitive color ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/78
CPCG01N21/78
Inventor 刘永生郭欣王学敏熊梅英张雪翼周世兵
Owner SHENZHEN NINE STARS PRINTING & PACKAGING GRP
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