multilayer marking film

A technology for marking films and coatings, applied to coatings, labels, layered products, etc., can solve problems such as product information and internal identification function degradation

Active Publication Date: 2022-03-08
LG CHEM LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

That said, labels need to remain fragile
In addition, when scratches are formed on the surface of the label by scratching or the like, the information on the product and the internal identification function are significantly degraded, and therefore, studies are required to prevent the deterioration

Method used

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Examples

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Embodiment approach

[0032] According to an exemplary embodiment of the present invention, the urethane (meth)acrylate oligomer can be composed of an isocyanate compound containing three to six isocyanate groups and a (meth)acrylate compound containing a hydroxyl group (such as ( hydroxyethyl (meth)acrylate, hydroxypropyl (meth)acrylate and hydroxybutyl (meth)acrylate).

[0033] According to an exemplary embodiment of the present invention, the urethane (meth)acrylate oligomer included in the base composition may have a weight average molecular weight of 2000 g / mol or more and 10000 g / mol or less. Specifically, the weight average molecular weight of the urethane (meth)acrylate oligomer may be 2000 g / mol or more and 8000 g / mol or less, or 2000 g / mol or more and 5000 g / mol or less . When the weight-average molecular weight of the urethane (meth)acrylate oligomer is within the above-mentioned range, the cured material of the base composition can have a dense cured structure, and the colored base lay...

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Abstract

The present invention provides a multilayer marking film comprising an adhesive layer, a colored base layer and a colored coating layer, in which information can be written by laser irradiation.

Description

technical field [0001] This specification claims priority and benefit from Korean Patent Application No. 10-2017-0068598 filed with the Korean Intellectual Property Office on June 1, 2017, the entire contents of which are incorporated herein by reference. [0002] The present invention relates to a multilayer marking film on which various information is displayed by laser etching. Background technique [0003] A wide variety of articles have labels for internal identification functions. These tags include a wide variety of information about the article and also perform an internal identification function. For example, labels are used in the automotive industry to display information about various components of a vehicle such as tire pressure or fuel type, or to display interior safety information such as chassis number and vehicle identification number. In the event of vehicle theft or vehicle accidents, tags allow the vehicle to be tracked. [0004] As one example of a m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B3/30B32B27/20B32B27/40B32B27/08G09F3/02
CPCB32B3/30B32B27/08B32B27/20B32B27/40C08F290/067C09D175/16C09D4/00C08F222/1065C08K2003/2241C08K3/04C08K2201/011C08K9/04C09D151/08C08F299/065C08F222/102G09F3/02G09F2003/0255G09F2003/0257B32B2519/00C09D133/14G09F2003/0208
Inventor 曹明铉沈慧珍金章淳
Owner LG CHEM LTD
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