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Color change indicating device and transparent ink

A technology of color change indication and transparent ink, which is applied in the direction of ink, material analysis by observing the influence on chemical indicators, and analysis by making materials undergo chemical reactions, etc., which can solve the problems of non-neutrality, inconsistent pH value, indication Problems such as device indication effect deviation

Active Publication Date: 2016-05-04
SHENZHEN NINE STARS PRINTING & PACKAGING GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to avoid the influence of the protective layer on the discoloration of the indicating part, a material with a neutral pH value is usually selected as the material of the protective layer, such as hot-stamping anodized aluminum. However, the pH value of hot-stamped anodized aluminum is not neutral, and due to The indicator part where the volatile base is located is alkaline, and the pH values ​​of the two are inconsistent. Therefore, the protective layer will have a negative impact on the pH value of the indicator part, resulting in deviations in the indication effect of the color change indicator device, and even failure.

Method used

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  • Color change indicating device and transparent ink

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] The structure of the color change indicating device of embodiment 1 is as follows figure 1 As shown, it includes a base layer 10 , an indicator layer 20 , a protective layer 30 , an isolation layer 40 , a release layer 50 , a first adhesive layer 60 , a barrier layer 70 , a second adhesive layer 80 and a release layer 90 .

[0064] Wherein, the material of the base layer 10 is PET, and the thickness is 0.1mm; the material of the indicating layer 20, the protective layer 30, and the isolation layer 40 is polyvinyl butyral, and the thickness is 0.1mm; the material of the release layer 50 is silicone oil, The thickness is 0.005 mm; the material of the first adhesive layer 60 is acrylic resin, and the thickness is 0.05 mm; the material of the barrier layer 70 is PVC, and the thickness is 0.15 mm; the material of the second adhesive layer 80 is acrylic resin, and the thickness is 0.1 mm. mm; the material of the peeling layer 90 is cellophane with a thickness of 0.15 mm.

[...

Embodiment 2

[0070] The structure of the color change indicating device of embodiment 2 is as follows figure 1 As shown, it includes a base layer 10 , an indicator layer 20 , a protective layer 30 , an isolation layer 40 , a release layer 50 , a first adhesive layer 60 , a barrier layer 70 , a second adhesive layer 80 and a release layer 90 .

[0071] Among them, the material of the base layer 10 is PVC with a thickness of 0.15 mm; the material of the indicating layer 20, the protective layer 30 and the isolation layer 40 is hydroxyethyl cellulose with a thickness of 0.08 mm; the material of the release layer 50 is polyvinyl alcohol , with a thickness of 0.05mm; the material of the first adhesive layer 60 is polyurethane, with a thickness of 0.1mm; the material of the barrier layer 70 is PET, with a thickness of 0.1mm; the material of the second adhesive layer 80 is polyurethane, with a thickness of 0.08mm ; The material of the release layer 90 is release paper with a thickness of 0.10 mm....

Embodiment 3

[0077] The structure of the color change indicating device of embodiment 3 is as follows figure 1 As shown, it includes a base layer 10 , an indicator layer 20 , a protective layer 30 , an isolation layer 40 , a release layer 50 , a first adhesive layer 60 , a barrier layer 70 , a second adhesive layer 80 and a release layer 90 .

[0078] Wherein, the base layer 10 is made of PET with a thickness of 0.2 mm; the material of the indicating layer 20, the protective layer 30 and the isolation layer 40 is hydroxypropyl cellulose with a thickness of 0.05 mm; the material of the release layer 50 is emulsified paraffin, The thickness is 0.05mm; the material of the first adhesive layer 60 is acrylic resin, and the thickness is 0.05mm; the material of the barrier layer 70 is PET, and the thickness is 0.07mm; the material of the second adhesive layer 80 is polyurethane, and the thickness is 0.03mm ; The material of the release layer 90 is paper coated with silicone oil, with a thickness ...

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Abstract

The invention relates to a color change indicating device and transparent ink. The color change indicating device comprises a substrate layer and an indicating layer formed on the surface of the substrate layer. The indicating layer comprises an indicating portion which is formed by printing of indicating ink. The color change indicating device further comprises a protective layer covering the surface of the indicating portion. The protective layer is formed by printing of the transparent ink. The transparent ink is prepared from volatile alkali, a binding agent, a solvent and acid materials. The indicating ink is prepared from volatile alkali, a binding agent, a solvent, acid materials and a pH indicating agent. The volatile alkali is selected from at least one of ammonia water, ammonium hydroxide, propylamine, n-butylamine, normal hexyl amine and n-octylamine, the binding agent is selected from at least one of polyvinyl butyral, nitrocotton, polyvinyl alcohol, hydroxyethyl cellulose and hydroxy propyl cellulose. The pH value of the transparent ink is the same as that of the indicating ink. The color change indicating device can effectively prevent deviation of the pH value of the indicating portion.

Description

technical field [0001] The invention relates to a color change indicating device and transparent ink. Background technique [0002] General products have a service life or shelf life, especially food, beverages and medicines that 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] The existing color change indicating device comprises a base layer, an indicating layer and a protective layer formed on the surface of the base layer, the indicating layer includes an indicating part and a reference part, and the protective layer covers the surface of the indicating part to protect t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/80C09D11/03C09D11/106C09D11/14
CPCC09D11/03C09D11/106C09D11/14G01N21/80
Inventor 刘永生郭欣刘文恒曾海明覃玲
Owner SHENZHEN NINE STARS PRINTING & PACKAGING GRP
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