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Magnetic card protecting film and preparation method thereof

A card protection film and magnetic technology, which is applied in the field of card protection film, can solve the problems of poor anti-aging and achieve the effects of improving anti-aging, high dimensional stability, and high anti-light aging

Pending Publication Date: 2022-04-22
惠州艺都文化用品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the related technology, by adding polyethylene terephthalic acid resin and magnetic powder to the raw material of the card protection film, the card protection film is magnetic, but its aging resistance is poor.

Method used

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  • Magnetic card protecting film and preparation method thereof
  • Magnetic card protecting film and preparation method thereof
  • Magnetic card protecting film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] The magnetic card protection film of embodiment 1 is obtained by following operation steps:

[0039] According to the dosage in Table 1, the preparation of BOPET base film: mix polyethylene terephthalic acid resin, samarium cobalt magnetic powder, nano-titanium dioxide, 4-hydroxybenzophenone, organic nickel chelate, glycidyl methacrylate Uniform, melt-extruded at 240°C, cast into sheets, made into polyester chips, polymerized, crystallized, dried, biaxially stretched, and corona surface treated to obtain BOPET base film;

[0040] According to the dosage in Table 2, mix ethylene-ethyl acrylate copolymer, 2,6-di-tert-butyl-p-cresol, phosphite and polyethylene naphthalate, stir evenly, and cast To the surface of the high-temperature BOPET base layer, laminated and cooled to form a protective card film.

Embodiment 2-5

[0042] The preparation method and raw material types of the magnetic card protection film of Examples 2-5 are exactly the same as those of Example 1, the difference is that the dosage of each raw material is different, as shown in Table 1 and Table 2 for details.

[0043] Table 1 embodiment 1-5 each raw material dosage of BOPET base film of magnetic card protection film

[0044] (unit: kg)

[0045]

[0046] Table 2 embodiment 1-5 each raw material dosage of magnetic card protection film EEA adhesive layer

[0047] (unit: kg)

[0048] raw material Example 1 Example 2 Example 3 Example 4 Example 5 Ethylene-ethyl acrylate copolymer 35 35 35 35 35 2,6-di-tert-butyl-p-cresol 0.5 0.7 0.8 0.9 1.0 Phosphite 0.1 0.1 0.1 0.1 0.1 polyethylene naphthalate 0.1 0.1 0.1 0.1 0.1

Embodiment 6-9

[0050] The preparation method and raw material types of the magnetic card protection film of Examples 6-9 are exactly the same as those of Example 3, the difference is that the dosage of each raw material of the BOPET base film is different, as shown in Table 3 for details.

[0051] Table 3 Embodiment 6-9 The dosage of each raw material of the magnetic card protection film BOPET base film

[0052] (unit: kg)

[0053]

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Abstract

The invention relates to the field of card protecting films, and particularly discloses a magnetic card protecting film and a preparation method thereof.The magnetic card protecting film comprises a BOPET base film and an EEA bonding layer, and the BOPET base film is prepared from, by weight, polyethylene terephthalate resin, samarium cobalt magnetic powder, nanometer titania, 4-hydroxybenzophenone, organic nickel chelate and glycidyl methacrylate. The magnetic card protecting film has magnetism and can be adsorbed on the surface of a metal carrier to facilitate use of a flaky material, the minimum thermal shrinkage rate of the magnetic card protecting film is only 1.2%, and after a light aging test, the tensile strength and the elongation at break of the magnetic card protecting film are still high and are 189% and 181% at most; the tensile strength and the elongation at break of the magnetic film subjected to a thermal aging test are up to 186% and 184%, the magnetic film has high light aging resistance and thermal aging resistance, and the aging resistance of the magnetic card protecting film is improved.

Description

technical field [0001] The application relates to the field of card protection film, more specifically, it relates to a magnetic card protection film and a preparation method thereof. Background technique [0002] Card protection film, also known as plastic sealing film, is a sheet-shaped packaging material that uses polyester film as the base material, coats the adhesive on the base material, and performs special processing. It is widely used in ID cards, photos, etc. Sealing and protection of various sheet materials such as credit cards, business licenses, plant specimens, price lists and passes, with functions such as waterproof, anti-alteration, moisture-proof, anti-corrosion and anti-mildew. The magnetic card protection film is a kind of card protection film, which not only has the function of the card protection film, but also has a certain magnetic effect, which can be adsorbed on the corresponding metal carrier, which is convenient for display and use in schools, res...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/25C09J7/30C09J11/04C09J11/06C09J11/08C09J123/08C08L67/02C08K3/22C08K5/5313C08K5/3445
CPCC09J7/255C09J7/30C09J123/0869C09J11/06C09J11/04C09J11/08C09J2301/122C09J2301/408C09J2301/41C09J2467/006C08L67/02C08K5/13C08K3/32
Inventor 李玉成李晓智李晓睿叶祥军
Owner 惠州艺都文化用品有限公司
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