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Allochroic liquid crystal label

A liquid crystal and label technology, applied in the field of labels, can solve the problems of inconvenient use, easy forgery, short validity period of pigments, etc., and achieve the effects of convenient use, prolonging life, and increasing the number of discoloration times

Inactive Publication Date: 2016-09-21
SUZHOU ZHONGXIAN ELECTRONICS SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The former is easy to forge, while the latter pigment has a short validity period, high discoloration temperature, and inconvenient use

Method used

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  • Allochroic liquid crystal label

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Embodiment Construction

[0008] The present invention will be further described below in conjunction with accompanying drawing.

[0009] A color-changing liquid crystal label such as figure 1 As shown, the protective film 1 is composed of a polymer transparent film with a thickness of about 0.015-0.1mm. The substrate 3 can be made of paper, plastic or metal film materials, preferably black, to enhance the color contrast. The thickness of the substrate is generally 0.03-0.2mm, thermochromic liquid crystal 2 adopts the mixed liquid crystal of nematic liquid crystal and cholesteric liquid crystal. The former has fast color development speed and long service life, but the cost is low; the latter has bright color and shadow, cheap price, but poor durability. The combination of the two reduces cost, improves Canon, and achieves significant temperature effects and optical properties. The thickness of the liquid crystal film is usually About 0.05mm, placed between the protective film 1 and the substrate 3, t...

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Abstract

The invention relates to an allochroic liquid crystal label. The allochroic liquid crystal label is composed of a protective film, a base material and the like. Temperature sensing allochroic liquid crystal is bonded between the protective film and the base material, after the human body touches the allochroic liquid crystal label, the color of the label changes due to human body temperature, commodity authenticity can be judged, and commodities can be prevented from being counterfeited, so that the allochroic liquid crystal label is convenient to use and long in service life.

Description

technical field [0001] The invention relates to a label, in particular to a color-changing liquid crystal label. Background technique [0002] There are two types of existing product labels or trademarks. One is to use printing methods to print the pattern and text of the trademark or label on paper, plastic or metal film, and then paste it on the product or packaging for identification. Use; one is to use color-changing pigments to make composite labels or trademarks, paste them on commodities or packaging, and use them as signs, and judge the authenticity of commodities through color changes. The former is easy to forge, while the latter pigment has a short validity period, high discoloration temperature, and inconvenient use. Contents of the invention [0003] The object of the present invention is to provide a color-changing liquid crystal label, which overcomes the deficiencies of the prior art. [0004] The present invention is realized in the following way: the co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09F3/02G02F1/13
CPCG09F3/0294G02F1/1313G02F1/132
Inventor 杨黎明
Owner SUZHOU ZHONGXIAN ELECTRONICS SCI & TECH