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Color change indication device and transparent ink

A technology of color change indication and transparent ink, applied in ink, material analysis by observing the influence on chemical indicators, and analysis by chemical reaction of materials, etc. Neutral and other problems, to avoid deviation and avoid interference

Active Publication Date: 2016-07-20
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 acid is located is acidic, and the pH values ​​of the two are not consistent. Therefore, the protective layer will have a negative impact on the pH value of the indicator part, resulting in a deviation in the indication effect of the color change indicator device, or even failure

Method used

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  • Color change indication device and transparent ink

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Experimental program
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Effect test

Embodiment 1

[0058] 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 .

[0059] Among them, 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 (PVB), and the thickness is 0.02mm; the material of the release layer 50 Silicone oil, with a thickness of 0.01mm; the material of the first adhesive layer 60 is acrylic resin, with a thickness of 0.01mm; the material of the barrier layer 70 is polyethylene terephthalate, with a thickness of 0.05mm; the second adhesive layer The material of 80 is acrylic resin with a thickness of 0.01 mm; the material of the release layer 90 is cellophane containing ...

Embodiment 2

[0065] 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 .

[0066] Wherein, the material of the base layer 10 is polyethylene terephthalate, and the thickness is 0.15 mm; the material of the indicating layer 20, the protective layer 30, and the isolation layer 40 is polyvinyl alcohol (PVA), and the thickness is 0.05 mm; The material of the molding layer 50 is polyvinyl alcohol with a thickness of 0.015 mm; the material of the first adhesive layer 60 is polyurethane with a thickness of 0.05 mm; the material of the barrier layer 70 is polyethylene terephthalate with a thickness of 0.1 mm The material of the second adhesive layer 80 is acrylic resin with a thickness of 0.05 mm; the material of the release layer...

Embodiment 3

[0072] 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 .

[0073] Among them, the material of the base layer 10 is aluminum oxide foil with a thickness of 0.1 mm; the material of the indicating layer 20, the protective layer 30 and the isolation layer 40 is hydroxyethyl cellulose (HEC) with a thickness of 0.07 mm; the material of the release layer 50 It is emulsified paraffin wax with a thickness of 0.02mm; the material of the first adhesive layer 60 is acrylic resin with a thickness of 0.02mm; the material of the barrier layer 70 is polypropylene with a thickness of 0.15mm; the material of the second adhesive layer 80 is polyurethane , with a thickness of 0.08 mm; the material of the release layer 90 is ce...

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Abstract

The invention relates to a color change indication device and transparent ink.The color change indication device comprises a substrate layer and an indication layer formed on the surface of the substrate layer.The indication layer comprises an indication portion.The indication portion is formed by printing indication ink.The color change indication device further comprises a protective layer covering the surface of the indication portion.The protective layer is formed by printing transparent ink.The transparent ink comprises volatile acid, an adhesion agent and a solvent.The indication ink comprises volatile acid, the adhesion agent, the solvent and a pH indicator.The volatile acid is carboxylic acid.The adhesion agent is selected from at least one of polyvinyl butyral, nitro-cotton, polyvinyl alcohol, hydroxyethyl cellulose and hydroxyl propyl cellulose.The solvent is the alcohol solvent.The pH value of the transparent ink is the same as that of the indication ink.The concentration of the volatile acid in the transparent ink is the same as that of the volatile acid in the indication ink.The color change indication device can effectively avoid deviation of the pH value of the indication 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): C09D11/03C09D11/106C09D11/14G01N21/80
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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