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 of chemical indicators, and analysis by making materials undergo chemical reactions, can solve the problems of color change indication device failure, discoloration, etc. Achieve the effect of avoiding interference and meeting the requirements of use

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 indicator 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 the hot-stamped anodized aluminum is between the pH value of the indicator part There is a certain deviation, and the protective layer will have a negative impact on the pH value of the indicating part, resulting in the 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

[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 base layer 10 is PET, and the thickness is 0.1mm; The material of indicator layer 20, protective layer 30, isolation layer 40 is polyvinyl butyral (PVB), and thickness is 0.02mm; 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 oil with a thickness of 0.1 mm.

[0065] The indication...

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] 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

[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] 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 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 sensitive to oxygen. 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 color change indicating device is characterized by further comprising a reducing agent, a binding agent and a solvent. The reducing agent is selected from at least one of hyposulphite, thiosulfate, hydrosulphite, sulfite, borohydride salt and ascorbic acid. The binding agent is selected from at least one of gelatin, hydroxyethyl cellulose, polyvinyl butyral, ethyl cellulose, cellulose acetate, polyvinylpyrrolidone, polyethylene oxide and polymethyl methacrylate. 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 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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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/04C09D11/106C09D11/14C09D11/102C09D11/107C09D11/03G01N21/78
CPCC09D11/03C09D11/04C09D11/102C09D11/106C09D11/107C09D11/14G01N21/78
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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