In-mold label with color-changing effect and production equipment thereof

CN110660316BActive Publication Date: 2025-01-10ZHEJIANG ZHONGYU SCIENCE AND TECHNOLOGY CO LTD
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Patent Information

Application Number
CN201910850039.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2019-09-09
Publication Date
2025-01-10
Estimated Expiration
2039-09-09

AI Technical Summary

Technical Problem

The existing in-mold labels cannot discolor under changes in the external environment, resulting in a lack of visual effect when applied on bottles or injection molded parts and cannot meet the aesthetic needs of customers.

Method used

A mold label is designed including a transparent protective layer, a color-changing printing layer and a bonding layer. The color-changing printing layer can be a temperature-sensitive color-changing or optical color-changing, and is printed by a temperature-sensitive color-changing ink or an optical color-changing ink, combining the glue layer with OPP and The structure of the BOPP film achieves the effect of discoloration under temperature or light.

Benefits of technology

The label inside the mold can discolor under external temperature or light, provide rich color changes, and significantly enhance the visual effect. It is especially suitable for the outer packaging design of beverage bottles, avoiding fading or wear during long-term use.

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Abstract

The invention discloses an in-mold label with a color-changing effect, comprising a transparent protective layer, a color-changing printing layer and a laminating layer which are sequentially bonded to each other, wherein the side of the laminating layer away from the color-changing printing layer matches the outer surface of a bottle body / injection molded part. The invention has the following beneficial effects: the produced in-mold label can change color according to the use temperature or under external light, and can provide customers with excellent visual effects when applied to a bottle body or an injection molded part.
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Citation Information

Patent Citations

  • BOPP film with low shrinkage

    CN105829409B

  • Radiochromic label and preparation method thereof

    CN103057245A

  • Compound machine specially used for film

    CN107639919A

  • Two -sidedly spout gluey laminating machine

    CN207931242U

  • In-mold label with color changing effect and production equipment of in-mold label

    CN210489058U