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Color-changing indicating 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, household appliances, etc., can solve the problem of color change indicating device indicating effect, inconsistency, and non-neutrality.

Active Publication Date: 2019-01-15
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-changing indicating device and transparent ink

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] 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 peeling layer 90.

[0063] Among them, the material of the base layer 10 is PET with a thickness of 0.1 mm; the material of the indicator layer 20, the protective layer 30, and the isolation layer 40 is polyvinyl butyral (PVB) with a thickness of 0.02 mm; the material of the release layer 50 It is 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 silicone o...

Embodiment 2

[0069] The structure of the color change indicator 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.

[0070] Among them, the material of the base layer 10 is polyethylene terephthalate with a thickness of 0.15mm; the material of the indicator layer 20, the protective layer 30, and the isolation layer 40 is polyvinyl alcohol (PVA) with a thickness of 0.05mm; The material of the type 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 peeling layer 90 is cellophane ...

Embodiment 3

[0076] 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.

[0077] Among them, the material of the base layer 10 is aluminum oxide foil with a thickness of 0.1 mm; the material of the indicator 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 , The thickness is 0.08mm; the material of the peeling layer 90 is cellophane conta...

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Abstract

The invention relates to a color change indicating device and transparent ink. The color change indicating device comprises a basal layer, an indicating layer and a protective layer, wherein the indicating layer is formed on the surface of the basal layer and comprises an indicating portion formed by printing of indicating ink, and the protective layer covers the surface of the indicating portion and is formed by printing of the transparent ink. The transparent ink comprises volatile acids, binders, basic materials and solvents, the indicating ink comprises volatile acids, binders, basic materials, solvents and pH indicators, the volatile acids refer to carboxylic acids, the binders are selected from at least one of polyvinyl butyral, nitrocotton, polyvinyl alcohol, hydroxyethyl cellulose and hydroxy propyl cellulose, the solvents refer to alcohols solvents, a pH value of the transparent ink is as same as that of the indicating ink, and concentration of the volatile acids in the transparent ink is as same as that of the volatile acids in the indicating ink. The color change indicating device is capable of preventing a pH value of the indicating portion from deviation.

Description

Technical field [0001] The invention relates to a color change indicating device and transparent ink. Background technique [0002] General products have a useful life or shelf life, especially food, beverages and medicines that are prone to spoilage during storage. In order to reduce oxygen in the packaging and avoid deterioration in an oxygen environment, vacuum packaging or modified atmosphere packaging is usually used. Print the date of manufacture and the expiration date on the outer packaging for people to judge whether it has expired. However, if the product packaging is opened or started to be used, how to effectively record the opening or use time is particularly important. [0003] The existing color change indicator device includes a base layer, an indicator layer and a protective layer formed on the surface of the base layer, the indicator layer includes an indicator portion and a reference portion, and the protective layer covers the surface of the indicator portion t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D11/106C09D11/14C09D11/03G01N21/78
CPCC09D11/03C09D11/106C09D11/14G01N21/78
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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