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A thermal adhesive ultra-thin ultra-high frequency anti-metal radio frequency identification label plastic base material and its preparation method and application

A radio frequency identification tag, anti-metal technology, which is applied to the plastic base material of thermal adhesive ultra-thin ultra-high frequency anti-metal radio frequency identification tag and its preparation and application fields, which can solve the problems of unfriendly solvents, bad environment, and limited antenna design. , to reduce the amount of solvent used, simplify the production process, and reduce the thickness of the label

Active Publication Date: 2021-02-12
GUANGDONG JUSHI CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the attenuation of electromagnetic waves by metal and other environmental media, the metal surface has a reflection effect on electromagnetic waves, which seriously affects the reading rate of RFID electronic tags.
[0003] At present, there are three methods to solve the anti-metal of RFID tags: one is to select the appropriate antenna type, such as microstrip patch antenna or inverted F antenna, etc., but this method will limit the design of the antenna; the other is to use double-layer dielectric, dielectric Covering or electromagnetic bandgap and other structural forms, but this mode may have the disadvantage of excessive label volume; the third is to use methods such as wave-absorbing materials
The anti-metal RFID electronic label provided in CN203102342U comprises a printing unit layer, a first adhesive layer, an INLAY layer, an anti-metal unit layer and a carrier substrate, and is prepared with complex processes and many procedures
During the preparation of double-sided adhesive tape and glue, non-environmentally friendly solvents are required, which increases the industrial chain process and also has a bad impact on the environment

Method used

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Examples

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Comparison scheme
Effect test

preparation example Construction

[0033] A method for preparing a hot-adhesive ultra-thin ultra-high frequency anti-metal radio frequency identification label plastic substrate, comprising the following steps:

[0034] 1) Weighing the wave-absorbing material, bonding resin and auxiliary agent according to the above composition, mixing and stirring to obtain the mixture;

[0035] 2) Blowing the mixed material into a film to obtain a hot-adhesive ultra-thin ultra-high frequency anti-metal radio frequency identification label plastic substrate.

[0036] Preferably, in step 1) of the preparation method, the mixing and stirring is performed in a mixer with a rotation speed of 800r / min to 1200r / min for 5min to 30min; further preferably, in step 1) of the preparation method, the mixing and stirring is performed at a rotation speed of Stir for 5 minutes in a mixer at 1000r / min.

[0037] Preferably, in step 2) of the preparation method, the thickness of the film obtained by blowing the film is 30 μm to 100 μm.

[003...

Embodiment 1

[0043] Mix 30 parts by mass of ferrite powder, 69 parts by mass of LE920 bonding resin (produced by Heyuan Pulilong New Material Technology Co., Ltd.), and 1 part by mass of antioxidant B215 under the condition of high mixer 1000r / min After 5 minutes, the single-layer film blowing method was used to blow the film, and the plastic base material of the ultra-thin ultra-high frequency anti-metal radio frequency identification label with a film thickness of 100 μm was blown out.

[0044]The plastic substrate is used for the UHF dog bone antenna to prepare an electronic label by conventional etching method, and the label is thermally bonded to the steel sheet with an ordinary electric iron. When the reader’s emission power is 26dBm, the readable distance is 2cm.

Embodiment 2

[0046] 40 mass parts of conductive carbon black powder, 69 mass parts of LE913 bonding resin (produced by Heyuan Pulilong New Material Technology Co., Ltd.), 1 mass part of antioxidant B215 were mixed under the condition of high mixer 1000r / min After 5 minutes, the single-layer film blowing method was used to blow the film, and the plastic base material of the ultra-thin ultra-high frequency anti-metal radio frequency identification label with a film thickness of 100 μm was blown out.

[0047] The plastic substrate is used for the UHF dog bone antenna to prepare the electronic label by the conventional etching method, and the label is thermally bonded to the steel sheet with an ordinary electric iron. When the reader’s emission power is 26dBm, the readable distance is 0.5cm.

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Abstract

The invention discloses a hot-adhesive ultra-thin ultra-high frequency anti-metal radio frequency identification label plastic base material and a preparation method and application thereof. The heat-adhesive ultra-thin ultra-high frequency anti-metal radio frequency identification label plastic substrate is composed of the following raw materials in parts by mass: 10-40 parts of wave-absorbing material, 60-90 parts of adhesive resin, and 1-5 parts of auxiliary agent. At the same time, the preparation method of the hot-adhesive ultra-thin ultra-high frequency anti-metal radio frequency identification label plastic base material is also disclosed, and the application of the thermal adhesive ultra-thin ultra-high frequency anti-metal radio frequency identification label plastic base material is also disclosed. The plastic base material of the present invention combines the flexibility of the adhesive resin with the wave-absorbing material to play a certain shielding effect on the metal surface to be used, and at the same time utilizes the thermal viscosity of the adhesive resin to avoid the use of double-sided tape and glue , which not only simplifies the production process, but also lays the foundation for reducing the thickness of the label, while reducing the amount of solvent used, which protects the environment to a certain extent.

Description

technical field [0001] The invention relates to a hot-adhesive ultra-thin ultra-high frequency anti-metal radio frequency identification label plastic base material and a preparation method and application thereof. Background technique [0002] Radio Frequency Identification (RFID) technology is a non-contact automatic identification technology. It communicates wirelessly through electromagnetic fields to automatically identify objects and obtain information. It has been widely used in transportation, logistics, warehousing, packaging, and intelligent Internet of Things. field. Because environmental media such as metals have an attenuation effect on electromagnetic waves, the metal surface has a reflection effect on electromagnetic waves, which seriously affects the reading rate of RFID electronic tags. [0003] At present, there are three methods to solve the anti-metal of RFID tags: one is to select the appropriate antenna type, such as microstrip patch antenna or inverte...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L101/00C08K3/22C08K5/134C08K5/526C08J5/18
CPCC08J5/18C08J2300/00C08K3/22C08K5/1345C08K5/526
Inventor 朱红芳田科巍余如媛杨正高陈钢
Owner GUANGDONG JUSHI CHEM CO LTD