Transferring type magnetic stripe with multi-function coating

A transferable, multi-functional technology, applied in the field of magnetic strips, can solve the problems of increased coating layers, wrinkles, increased man-hours, etc.

Inactive Publication Date: 2004-06-09
CHINA LUCKY FILM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Japanese patent day kaiping 8-2154 (JP8002154) discloses a manufacturing method of a transfer type magnetic strip, in which a peeling layer, a protective layer, a black colored layer, and a magnetic layer are sequentially coated on a polyester film base (23 μm thick), and the magnetic layer is manufactured. Transfer magnetic strips, and then set an adhesive layer on the card base made of ABS resin, paste the magnetic strips on the adhesive layer of the card base, and then perform hot pressing to form a magnetic strip type magnetic card. The manufacture of the magnetic strip The process is cumbersome, the working hours are increased, the cost is increased, and the number of coating layers is increased, which makes the coating process difficult to control and may cause a decrease in yield
In addition, if the release layer, protective layer, black layer, magnetic layer, and adhesive layer are coated on a 12 μm polyester film base, it is easy to cause wrinkles.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Multifunctional layer preparation

[0037] Polyvinyl butyral 45 parts

[0038] Polyurethane 35 parts

[0039] Modified silicone 8 parts

[0040] Cross-linking agent (isocyanate) 15 parts

[0041] 550 parts of toluene

[0042] Butanone 550 parts

[0043] First prepare toluene and methyl ethyl ketone, then add 45 parts of polyvinyl butyral and 35 parts of polyurethane, stir until completely dissolved, add 14 parts of modified silicone, 15 parts of crosslinking agent isocyanate, continue Stir evenly to make multi-functional layer slurry, set aside.

[0044] Coat a multi-functional layer on a 12 μm polyester film tape base with a thickness of 1.8 ± 0.2 microns, then coat a magnetic layer and an adhesive layer on the multi-functional layer in sequence, cut into 12.7 mm wide magnetic strips, and make Take out the transfer magnetic strip sample A1. Then, a peel characteristic test and an abrasion test were performed.

Embodiment 2

[0046] Multifunctional layer preparation

[0047] Polyvinyl butyral 35 parts

[0048] Polyurethane 45 parts

[0049] Modified silicone 15 parts

[0050] Cross-linking agent (isocyanate) 8 parts

[0051] 500 parts of toluene

[0052] Butanone 500 parts

[0053] First prepare toluene and methyl ethyl ketone, then add 35 parts of polyvinyl butyral and 45 parts of polyurethane, stir until completely dissolved, add 15 parts of modified silicone, 8 parts of crosslinking agent isocyanate, continue Stir evenly to make multi-functional layer slurry, set aside.

[0054] Coating on a 12 μm polyester film tape base, the thickness of the multifunctional layer is: 1.8±0.2 μm, and then coating the magnetic layer and the adhesive layer on the multifunctional layer in sequence, cutting into 12.7mm wide magnetic strips, and making Take the transfer magnetic strip sample A2. Then, a peel characteristic test and an abrasion test were performed.

Embodiment 3

[0056] Multifunctional layer preparation

[0057] Polyvinyl butyral 40 parts

[0058] Polyurethane 40 parts

[0059] Modified silicone 11 parts

[0060] Cross-linking agent (isocyanate) 10 parts

[0061] 600 parts of toluene

[0062] Butanone 600 parts

[0063] First prepare toluene and butanone, then add 40 parts of polyvinyl butyral and 40 parts of polyurethane, stir until completely dissolved, add 11 parts of modified silicone, 10 parts of crosslinking agent isocyanate, and continue stirring Evenly, make a multi-functional layer slurry and set it aside.

[0064] Coating on a 12 μm polyester film tape base, the thickness of the multifunctional layer is: 1.8±0.2 μm, and then coating the magnetic layer and the adhesive layer on the multifunctional layer in sequence, cutting into 12.7mm wide magnetic strips, and making Take out transfer magnetic strip sample A3. Then, a peel characteristic test and an abrasion test were performed.

[0065] Example

Peeling p...

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PUM

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Abstract

The present invention relates to a magnetic strip, in particular, it relates to a transfer type magnetic strip with multifunctional coating layer. It is formed from tape base, magnetic layer and cohesive layer, and it is characterized by that it also contains a layer of multifunctional layer, in which the formula of said multifunctional layer is formed from (by weight portion) polyvinyl butyral 25.0-50.0, polyurethane 25.0-50.0, adjuvant 5.0-20.0, cross-linking agent (isocyanate) 5.0-20.0 and solvent 840-1400. The stripping property and antifriction property of the transfer magnetic strip made up by adopting said invented method can meet requrements.

Description

Field of invention: [0001] The invention relates to a magnetic strip, in particular to a transfer type magnetic strip with a multifunctional coating. technical background: [0002] Transfer-type magnetic stripes are used to produce various card products such as highway cards and bank passbook cards in large quantities. At present, four to five coatings are generally used in the production of transferable magnetic strips, namely peeling layer, protective layer, black layer, magnetic layer and adhesive layer. Japanese Patent No. 8-2154 (JP8002154) discloses a method of manufacturing a transfer-type magnetic strip. On a polyester film tape base (thick 23 μm), a peeling layer, a protective layer, a black colored layer, and a magnetic layer are sequentially coated. Transfer magnetic strips, and then set an adhesive layer on the card base made of ABS resin, paste the magnetic strips on the adhesive layer of the card base, and then perform hot pressing to form a magnetic strip typ...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): B42D25/369
Inventor赵战粮王德胜
OwnerCHINA LUCKY FILM CORP