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Fragile tag preventing from edge warping and preparation method thereof

A label and frangible layer technology, which is applied to record carriers, instruments, computer parts, etc. used in machines, can solve the problems of small peeling force, damage to the label structure, etc., to improve the bonding fastness, enhance the damage effect, and combine Simple and feasible effect

Pending Publication Date: 2017-08-29
上海博感电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to ensure the unique identity of the marked item, the electronic tag must also be prevented from being transferred and reused. In order to enhance the one-time use function of the electronic tag, it is currently supplemented by placing the RFID antenna on the base of the fully coated and easily peeled off fragile coating. On the material, the peeling force between the coating and the substrate is small, and the tag antenna is not easy to be lifted off with the substrate as a whole, but when the electronic tag is used on the surface of a curved object, see Figure 7 , due to the continued existence of the rebound force caused by the flexural modulus of the substrate, long-term storage will cause the edge of the electronic label substrate to warp in the bending direction, and damage the label structure

Method used

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  • Fragile tag preventing from edge warping and preparation method thereof
  • Fragile tag preventing from edge warping and preparation method thereof
  • Fragile tag preventing from edge warping and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0029] Example 1: Making HF anti-warping and fragile electronic tags

[0030] see Figure 4 , select 38μm PET substrate, on the side whose surface tension is less than 40 dynes, apply acrylic resin light peeling coating to form a peeling force of 0.3-0.8N light peeling fragile area, and then compound 30μm aluminum foil to form a peeling force> In the 3.5N non-fragile area, the HF antenna is etched on the aluminum foil, and the bridge is etched on the other side of the PET substrate with 10μm aluminum foil and riveted. The non-fragile area is randomly scattered on the PET base material to ensure that there is more than one non-fragile area on the edge of the label in the bending direction, and the non-fragile area is mainly distributed on the edge of the label, so that the antenna processing does not need to track the non-fragile area. The minimum width of the broken area is greater than 2mm, and the jump distance of the adjacent non-fragile area is smaller than the size of th...

Embodiment 2

[0031] Example 2: Making UHF anti-warping and fragile electronic tags

[0032] see Figure 5 , select a 50μm PET substrate, and apply an acrylic resin light peeling coating on the side whose surface tension is less than 42 dynes to form a peeling force of 0.5-1N light peeling fragile area, and then corona the coating surface of the PET substrate Composite 10μm aluminum foil to form a non-fragile area with a peeling force > 4N, and then etched UHF antenna, the non-fragile area is regularly arranged on the PET substrate, the chip pad is set in the non-fragile area, and the closed loop of the antenna spans the fragile area and the non-fragile area; then bind the UHF high-frequency chip, cover the chip surface with a high-temperature-resistant self-adhesive with a peel strength of 10N, and die-cut the substrate after the chip is bound UHF fragile electronic tags. The label is further attached to the surface of the curved glass, and the large peeling force in the non-fragile area...

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Abstract

The present invention relates to the electronic tag technology field of the RFID radio frequency technology, and especially relates to a fragile tag preventing from edge warping and a preparation method thereof. Antennas are arranged at the outer sides of base materials, a fragile layer is arranged between the base materials and the antennas, the antennas are arranged on the fragile layer, the antennas are connected with a chip, one sides of the antennas are provided with a bonding layer, the fragile layer comprises fragile areas and non-fragile areas, and antennas on the bending direction of the tag pass through at least one non-fragile area. Compared to the prior art, the combination structure is simple and feasible. On the bending direction of the tag, some non-fragile areas with large releasing force are prepared at the fragile layer at the edge of the tag to allow the tag to be enduringly pasted at the surface of a pasted object, the non-fragile areas of the tag antennas can improve the whole applying fastness of the tag, the antenna located at the junction of the fragile areas and the non-fragile areas is easy to be broken when the tag is peeled off, the destroy effect and the disposable function of the antenna are enhanced, and the tag is prevented from being transferred and reused.

Description

[technical field] [0001] The invention relates to the technical field of electronic labels of RFID radio frequency technology, in particular to an anti-warping and fragile label and a preparation method thereof. [Background technique] [0002] Electronic tag RFID chips have been widely used in the anti-counterfeiting fields of item identification and information traceability by virtue of the world's unique coding and non-contact identification technology. In order to ensure the unique identity of the marked item, the electronic tag must also be prevented from being transferred and reused. In order to enhance the one-time use function of the electronic tag, it is currently supplemented by placing the RFID antenna on the base of the fully coated and easily peeled off fragile coating. On the material, the peeling force between the coating and the substrate is small, and the tag antenna is not easy to be lifted off with the substrate as a whole, but when the electronic tag is us...

Claims

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Application Information

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IPC IPC(8): G06K19/077
CPCG06K19/07718G06K19/07726G06K19/07798
Inventor 陈德秋沈初玉曹伟苗铃炯戴世澄
Owner 上海博感电子科技有限公司
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