High-light-resistant 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. It can solve the problem of narrow and poor applicability. Discoloration and other issues

Active Publication Date: 2019-07-30
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-resistant color change indicating device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] The structure of the high light-resistant color change indicating device of Example 1 is as follows: figure 2 As shown, it includes a base layer, an indicator layer, a protective layer, an adhesive layer, a barrier layer, an adhesive layer, and a release layer.

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

[0051] The indicator portion is formed by drying the indicator ink after printing, and the indicator ink includes 5 parts of ferrocene, 1 part of magnesium chloride, 30 parts of water and 30 parts of hydroxymethyl cellulose. The indicator portion is a circle with a diameter of 10 mm and a thickness of 0.01 mm. The reference part is a circular ring and is arranged around the indicating part, the inner diameter of the reference part is 12mm, and the outer diameter of the reference part is 20mm. The reference part includes three colors of orange, light orange and light yellow, which respectively provide the starting color, mid...

Embodiment 2

[0059] The structure of the high light-resistant color change indicating device of Example 2 is as follows: figure 2 As shown, it includes a base layer, an indicator layer, a protective layer, an adhesive layer, a barrier layer, an adhesive layer, and a release layer.

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

[0061] The indicating part is formed by drying the indicating ink after printing, and the indicating ink includes 40 parts of cobaltocene, 5 parts of sodium chloride, 70 parts of ethanol and 60 parts of butyl acrylate. The indicator portion is a circle with a diameter of 10mm and a thickness of 1mm. The reference part is a circular ring and is arranged around the indicating part, the inner diameter of the reference part is 12mm, and the outer diameter of the reference part is 20mm. The reference part includes three colors of purple-black, purple, and light purple, which respectively provide the starting color, middle color ...

Embodiment 3

[0069] The structure of the high light-resistant color change indicating device of Example 3 is as follows: figure 2 As shown, it includes a base layer, an indicator layer, a protective layer, an adhesive layer, a barrier layer, an adhesive layer, and a release layer.

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

[0071] The indicating part is formed by drying the indicating ink after printing, and the indicating ink comprises 20 parts of vanadium bismuth, 3 parts of sodium chloride, 40 parts of isopropanol and 40 parts of methyl methacrylate. The indicator portion is a circle with a diameter of 10 mm and a thickness of 0.1 mm. The reference part is a circular ring and is arranged around the indicating part, the inner diameter of the reference part is 12mm, and the outer diameter of the reference part is 20mm. The reference part includes three colors of purple-black, purple, and light purple, which respectively provide the starting c...

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Abstract

The invention relates to a high-light-resistant color change indicating device. The high-light-resistant color change indicating device comprises a substrate layer, an indicating layer and a blockinglayer, wherein the indicating layer is stacked on the surface of the substrate layer and comprises an indicating part, the indicating part contains a volatile material and a hydrophilic material, thevolatile material is selected from one or more of ferrocene, cobaltocene, vananocene and chromocene, and the hydrophilic material can adsorb water vapor in air; the blocking layer is attached to the surface of the indicating layer and can be stripped from the surface of the indicating layer; and the substrate layer and the blocking layer can block the water vapor and the volatile material. The high-light-resistant color change indicating device is high in illumination-resistant ability and high in applicability.

Description

technical field [0001] The invention relates to a high light-resistant color change indicating device. Background technique [0002] General products have a useful life or shelf life, especially food, beverages and medicines and other perishable products 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 modified atmosphere is usually used. Packaging, and print the date of manufacture and expiration date on the outer packaging for people to judge whether it has expired. However, if the product package is opened or started to use, how to effectively record the time of opening or use is particularly important. [0003] At present, the color change indicating devices on the market are roughly divided into several types: enzyme reaction type color change indicating device, oxygen sensitive color change indicating device, carbon dioxide sensitive color change indicating device...

Claims

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Application Information

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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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