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Color change indicating device and transparent ink

A color-changing indicator and transparent ink technology, which is applied in the direction of ink, material analysis by observing the influence of chemical indicators, and analysis by making materials undergo chemical reactions, can solve the problem of discoloration of the indicator part, failure of the color-change indicator non-neutral

Active Publication Date: 2016-06-08
SHENZHEN NINE STARS PRINTING & PACKAGING GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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 indicating part where the phase transfer catalyst is located is alkaline, and the protective layer will have a negative impact on the pH value of the indicating part, resulting in failure of the color change indicating device

Method used

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  • Color change indicating 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 silicone oil, with a thickness of 0.015mm; the material of the first adhesive layer 60 is polyurethane, with a thickness of 0.05mm; the material of the barrier layer 70 is polyethylene terephthalate, with a thickness of 0.1mm; 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 ...

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 indicating device and transparent ink. The color change indicating device comprises a substrate layer, an indicating layer formed on the surface of the substrate layer and a protective layer covering the surface of the indicating layer, wherein the indicating layer comprises an indicating part formed through printing of indicating ink; the protective layer is formed through printing of the transparent ink which comprises a phase transfer catalyst, a binder and a solvent; the indicating ink comprises the phase transfer catalyst, the binder, the solvent and a pH indicator, the phase transfer catalyst is selected from at least one of quaternary ammonium salt, sodium hydroxide and sodium bicarbonate; the binder is selected from at least one of polyvinyl butyral, nitrocotton, polyvinyl alcohol, hydroxyethyl cellulose and hydroxypropyl cellulose; the pH value of the transparent ink is equal to that of the indicating ink, and the concentration of the phase transfer catalyst in the transparent ink is equal to that of the phase transfer catalyst in the indicating ink. The color change indicating device can effectively avoid pH deviation of the indicating part.

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 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 packaging is usually used, 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 the i...

Claims

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Application Information

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IPC IPC(8): C09D11/106C09D11/03C09D11/14G01N21/78
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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