CN1622127A - High wearing feature sticking magnetic stripe - Google Patents

High wearing feature sticking magnetic stripe Download PDF

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Publication number
CN1622127A
CN1622127A CN 200410102591 CN200410102591A CN1622127A CN 1622127 A CN1622127 A CN 1622127A CN 200410102591 CN200410102591 CN 200410102591 CN 200410102591 A CN200410102591 A CN 200410102591A CN 1622127 A CN1622127 A CN 1622127A
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CN
China
Prior art keywords
parts
magnetic strip
type magnetic
adhesive type
wearing feature
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN 200410102591
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Chinese (zh)
Inventor
王义军
张少纯
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Lucky Film Group Corp
Original Assignee
China Lucky Film Group Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China Lucky Film Group Corp filed Critical China Lucky Film Group Corp
Priority to CN 200410102591 priority Critical patent/CN1622127A/en
Publication of CN1622127A publication Critical patent/CN1622127A/en
Pending legal-status Critical Current

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Abstract

The present invention relates to magnetic bar, and is especially one kind of adhesive magnetic bar with high wear resistance. The magnetic bar consists of adhering layer, base belt, magnetic layer and protecting layer, and features the protecting layer comprise ternary polymer 5-90 (in weight portions, the same below), polyurethane 5-100, assistant 2-30, antistatic agent 3-30, grinding agent 1-20, dispersant 0.1-10, curing agent 2-20 and solvent 400-1400. The recipe makes the magnetic bar possess the features of high hardness, high wear resistance, good heat resistance, high brightness, high antistatic performance, good flexibility and high tensile stability, as well as low material consumption, low cost and long service life.

Description

A kind of high-wearing feature adhesive type magnetic strip
Technical field
The present invention relates to a kind of magnetic stripe, particularly a kind of high-wearing feature adhesive type magnetic strip.
Technical background
Adhesive type magnetic strip is as a kind of magnetic recording media, because energy is moistureproof, cost is low, pliability is strong, and use comparatively reliable and stable, characteristics such as Card read/write is simple easy relatively, thereby obtained development earlier, and entered a plurality of applications, be used to make in a large number various blocking product such as rate card, reserve card, admission ticket, deposit card, credit card, transportation card.At present; produce 3 ~ 4 coatings of the general employing of adhibit quality magnetic stripe, promptly on mylar tape base (thick 12 μ m), be coated with magnetosphere, dyed layer, protective seam successively, be coated with adhered layer at the mylar tape base back side then; with magnetic stripe be pasted on card base on, carry out hot pressing again and make the magnetic strip magnetic card.But because use is frequent, phenomenons such as magnetic stripe wearing and tearing, information distortion even magnetic recording information dropout appear in present magnetic card easily, and become one of main aspect that influences its usability.
Summary of the invention
The purpose of this invention is to provide a kind of adhesive type magnetic strip, this magnetic stripe has the characteristic of high-wearing feature, hi-fi.
Technical scheme of the present invention is: a kind of high-wearing feature adhesive type magnetic strip, form by (1) adhered layer, (2) tape base, (3) magnetosphere, (4) protective seam, and it is characterized in that, the prescription of wherein said protective seam (weight ratio, part) be:
5~90 parts of polyvinylss
5~100 parts of polyurethanes
2~30 parts of auxiliary agents
3~30 parts of antistatic agents
1~20 part of lapping compound
0.1~10 part of spreading agent
2~30 parts in hardening agent
400~1400 parts of solvents
A kind of preferred version, the prescription of wherein said protective seam (weight ratio, part) be:
10~60 parts of polyvinylss
10~60 parts of polyurethanes
8~25 parts of auxiliary agents
10~25 parts of antistatic agents
2~10 parts of lapping compounds
0.4~8 part of spreading agent
5~20 parts in hardening agent
900~1100 parts of solvents
A kind of preferred version, wherein said polyvinyls is vinyl chloride-vinyl acetate copolymer, vinyl chloride-vinyl acetate-vinyl alcohol copolymer thing, vinyl chloride-vinyl acetate-EDIA multipolymer or vinyl chloride-vinyl acetate-senecioate-hydroxypropyl acrylate multipolymer, wherein preferred vinyl chloride-vinyl acetate-vinyl alcohol copolymer thing.
A kind of preferred version, wherein said auxiliary agent can be silicone oil, silicone or modified silicone, preferred modified silicone.
A kind of preferred version, wherein said lapping compound can be one or more in aluminium oxide, chromium oxide, titanium dioxide, the wax powder.
A kind of preferred version, wherein said spreading agent are lecithin, soybean lecithin, nitrocellulose, stearic acid or resin acid fourth fat, preferred soybean lecithin or lecithin.
A kind of preferred version, wherein said hardening agent are hardening agent 101-second.
Being fit to antistatic agent of the present invention can be to fluoridize nonionic antistatic agent or anionic property antistatic agents such as alkyl sulfate, alkyl aryl sulfonate such as carbon black, graphite, acetylene carbon black, polyoxyethylene, alkyl ether, wherein preferred acetylene carbon black or change carbon black.
Being fit to solvent of the present invention can be toluene, butanone, cyclohexanone, and its ratio is preferably toluene: butanone: cyclohexanone=3: 3: 1.
The tape base that generally is used for magnetic stripe is a mylar, and its thickness is 12 μ m or 23 μ m.
The magnetosphere that generally is used for magnetic stripe is formulated by magnetic, bonding agent, spreading agent and solvent.Be applicable to that magnetospheric prescription of the present invention includes but not limited to following prescription:
40 parts of magnetics
8 parts in bonding agent
3 parts of spreading agents
100 parts of solvents
The magnetospheric general preparation method of magnetic stripe is: magnetic, bonding agent, spreading agent and solvent are carried out planet stir, sand milling disperses to make required magnetosphere slurry.
The adhered layer that generally is used for magnetic stripe is made by polyurethane, ter-polymers, solvent.The prescription that is applicable to adhered layer of the present invention includes but not limited to following prescription:
5 parts of polyurethane
10 parts of polyvinylss
100 parts of solvents
The general preparation method of the adhered layer of magnetic stripe is: take by weighing solvent earlier, adding polyurethane, ternary base polymer are stirred to dissolving fully, make adhered layer solution.
The present invention is by adding auxiliary agent, spreading agent, lapping compound, hardening agent, antistatic agent in the prescription of protective seam; make the protective seam good dispersion, packed density is big, smooth, static is little, at the bottom of the friction factor, wear-resistant; improve magnetic stripe hardness; make magnetic stripe have high abrasion resistance; prevent because of repeatedly use dry linting, magnetosphere occur and come off in, make it have the characteristics of thermotolerance, high-luster, antistatic behaviour, flexibility and tension stability again.
Preparation method with adhesive type magnetic strip of high-wearing feature; be that magnetosphere is coated on the mylar tape base; and then adopt that rod is coated with, methods such as notch board coating, extrusion coated or reverse roll coating are coated on protective seam on the magnetosphere; last again at the back side of tape base coating adhered layer; cut at last, assemble, make specific width magnetic stripe finished product.
Embodiment
The present invention is further illustrated below by specific embodiment.
Comparative example 1
The preparation of protective seam slurry:
25 parts of vinyl chloride-vinyl acetate-vinyl alcohol copolymer things
50 parts of polyurethanes
15 parts of modified silicones
4 parts of carbon blacks
2 parts in wax powder
1 part of chrome green
0.5 part of stearic acid
6 parts in hardening agent (101-second)
300 parts of toluene
300 parts of butanone
100 parts of cyclohexanone
Earlier 300 parts of toluene, 300 parts of butanone, 100 parts of cyclohexanone are mixed with mixed solution, dissolve 25 parts vinyl chloride-vinyl acetate-vinyl alcohol copolymer thing, add 50 parts of polyurethane, 15 parts of modified silicones, 4 parts of carbon blacks, 2 parts in wax powder, 3 parts of chrome greens, 0.5 part of stearic acid, it is pre-dispersed to carry out planet stir about 2 hours, carry out the constant temperature sand milling 35 ℃~45 ℃ scopes then, make the top layer slurry.Add 6 parts of hardening agent 101-second before the coating, stir stand-by.
Be coated with magnetosphere on the mylar tape base of 12 μ m, be coated with protective seam on magnetosphere, its thickness is about 2.0~3.0 μ m.Mylar tape base back side coating adhered layer, then, press polish also is cut into the magnetic stripe of 6.5~6.7mm, 12.7mm or 16.0mm, makes adhesive type magnetic strip sample C 1At last, Jia Gong temperature, pressure, time on request, it is compound that sample is carried out lamination, and magnetic stripe is pressed on the PVC card base, makes the PVC magnetic stripe card, and carry out surface gloss test and wearability test.
Comparative example 2
The preparation of protective seam slurry:
25 parts of vinyl chloride-vinyl acetate-vinyl alcohol copolymer things
50 parts of polyurethanes
15 parts of modified silicones
4 parts of carbon blacks
2 parts in wax powder
1 part of alundum (Al
0.5 part of soybean lecithin
6 parts in hardening agent (101-second)
300 parts of toluene
300 parts of butanone
100 parts of cyclohexanone
Earlier 300 parts of toluene, 300 parts of butanone, 100 parts of cyclohexanone are mixed with mixed solution, dissolve 25 parts vinyl chloride-vinyl acetate-vinyl alcohol copolymer thing, add 50 parts of polyurethane, 15 parts of modified silicones, 4 parts of carbon blacks, 2 parts in wax powder, 1 part of alundum (Al, 0.5 part of soybean lecithin, it is pre-dispersed to carry out planet stir about 2 hours, carry out the constant temperature sand milling 35 ℃~45 ℃ scopes then, make the top layer slurry.Add 6 parts of hardening agent 101-second before the coating, stir stand-by.
Be coated with magnetosphere on the mylar tape base of 12 μ m, be coated with protective seam on magnetosphere, its thickness is about 2.0~3.0 μ m.Mylar tape base back side coating adhered layer, then, press polish also is cut into the magnetic stripe of 6.5~6.7mm, 12.7mm or 16.0mm, makes adhesive type magnetic strip sample C 2At last, Jia Gong temperature, pressure, time on request, it is compound that sample is carried out lamination, and magnetic stripe is pressed on the PVC card base, makes the PVC magnetic stripe card, and carry out surface gloss test and wearability test.
Embodiment 1
10 parts of vinyl chloride-vinyl acetate-vinyl alcohol copolymer things
100 parts of polyurethanes
30 parts of modified silicones
20 parts of acetylene carbon blacks
10 parts in wax powder
5 parts of titanium dioxide
5 parts in aluminium oxide
0.4 part of soybean lecithin
20 parts in hardening agent (101-second)
500 parts of toluene
450 parts of butanone
150 parts of cyclohexanone
Earlier 500 parts of toluene, 450 parts of butanone, 150 parts of cyclohexanone are mixed with mixed solution, dissolve 10 parts vinyl chloride-vinyl acetate-vinyl alcohol copolymer thing, add 100 parts of polyurethane, 30 parts of modified silicones, 20 parts of acetylene carbon blacks, 10 parts in wax powder, 5 parts of titanium dioxide, 5 parts in aluminium oxide, 0.4 part of soybean lecithin, it is pre-dispersed to carry out planet stir about 2 hours, carry out the constant temperature sand milling 35 ℃~45 ℃ scopes then, make the top layer slurry, add 20 parts of hardening agent 101-second before the coating, stir stand-by.
Be coated with magnetosphere on the mylar tape base of 12 μ m, be coated with protective seam on magnetosphere, its thickness is about 2.0~3.0 μ m.Mylar tape base back side coating adhered layer, then, press polish also is cut into the magnetic stripe of 6.5~6.7mm, 12.7mm or 16.0mm, makes adhesive type magnetic strip sample A 1At last, Jia Gong temperature, pressure, time on request, it is compound that sample is carried out lamination, and magnetic stripe is pressed on the PVC card base, makes the PVC magnetic stripe card, and carry out surface gloss test and wearability test.
Embodiment 2
45 parts of vinyl chloride-vinyl acetate-senecioates-hydroxypropyl acrylate multipolymer
45 parts of polyurethanes
2 parts of silicone
10 parts of oxidized blacks
8 parts in wax powder
2 parts in aluminium oxide
8 parts in lecithin
30 parts in hardening agent (101-second)
800 parts of toluene
200 parts of cyclohexanone
Earlier 800 parts of toluene, 200 parts of cyclohexanone are mixed with mixed solution, dissolve vinyl chloride-vinyl acetate-senecioate-hydroxypropyl acrylate multipolymer of 45 parts, add 45 parts of polyurethane, 2 parts of silicone, 10 parts of oxidized blacks, 8 parts in wax powder, 2 parts in aluminium oxide, 8 parts in lecithin, it is pre-dispersed to carry out planet stir about 2 hours, carry out the constant temperature sand milling 35 ℃~45 ℃ scopes then, make the top layer slurry, add 30 parts of hardening agent 101-second before the coating, stir stand-by.
Be coated with magnetosphere on the mylar tape base of 12 μ m, be coated with protective seam on magnetosphere, its thickness is about 2.0~3.0 μ m.Mylar tape base back side coating adhered layer, then, press polish also is cut into the magnetic stripe of 6.5~6.7mm, 12.7mm or 16.0mm, makes adhesive type magnetic strip sample A 1At last, Jia Gong temperature, pressure, time on request, it is compound that sample is carried out lamination, and magnetic stripe is pressed on the PVC card base, makes the PVC magnetic stripe card, and carry out surface gloss test and wearability test.
Embodiment 3
5 parts of vinyl chloride-vinyl acetates-EDIA polymers
60 parts of polyurethanes
20 parts of modified silicones
25 parts in graphite
2 parts of titanium dioxide
0.1 part of stearic acid
5 parts in hardening agent (101-second)
600 parts of toluene
Earlier 600 parts of toluene are dissolved vinyl chloride-vinyl acetate-EDIA multipolymer of 5 parts, add 60 parts of polyurethane, 20 parts of modified silicones, 25 parts in graphite, 2 parts of titanium dioxide, 0.1 part of stearic acid, it is pre-dispersed to carry out planet stir about 2 hours, carry out the constant temperature sand milling 35 ℃~45 ℃ scopes then, make the top layer slurry, add 5 parts of hardening agent 101-second before the coating, stir stand-by.
Be coated with magnetosphere on the mylar tape base of 12 μ m, be coated with protective seam on magnetosphere, its thickness is about 2.0~3.0 μ m.Mylar tape base back side coating adhered layer, then, press polish also is cut into the magnetic stripe of 6.5~6.7mm, 12.7mm or 16.0mm, makes adhesive type magnetic strip sample A 1At last, Jia Gong temperature, pressure, time on request, it is compound that sample is carried out lamination, and magnetic stripe is pressed on the PVC card base, makes the PVC magnetic stripe card, and carry out surface gloss test and wearability test.
Embodiment 4
60 parts of vinyl chloride-vinyl acetate-vinyl alcohol copolymer things
5 parts of polyurethanes
25 parts of silicone oil
3 parts of acetylene carbon blacks
6 parts in wax powder
2 parts of titanium dioxide
5 parts of soybean lecithins
15 parts in hardening agent (101-second)
400 parts of butanone
Earlier 400 parts of butanone are dissolved 60 parts vinyl chloride-vinyl acetate-vinyl alcohol copolymer thing, add 5 parts of polyurethane, 25 parts of silicone oil, 6 parts in wax powder, 2 parts of titanium dioxide, 5 parts of soybean lecithins, it is pre-dispersed to carry out planet stir about 2 hours, carry out the constant temperature sand milling 35 ℃~45 ℃ scopes then, make the top layer slurry, add 15 parts of hardening agent 101-second before the coating, stir stand-by.
Be coated with magnetosphere on the mylar tape base of 12 μ m, be coated with protective seam on magnetosphere, its thickness is about 2.0~3.0 μ m.Mylar tape base back side coating adhered layer, then, press polish also is cut into the magnetic stripe of 6.5~6.7mm, 12.7mm or 16.0mm, makes adhesive type magnetic strip sample A 1At last, Jia Gong temperature, pressure, time on request, it is compound that sample is carried out lamination, and magnetic stripe is pressed on the PVC card base, makes the PVC magnetic stripe card, and carry out surface gloss test and wearability test.
Embodiment 5
90 parts of vinyl chloride-vinyl acetate-vinyl alcohol copolymer things
10 parts of polyurethanes
8 parts of modified silicones
30 parts of acetylene carbon blacks
1 part in wax powder
10 parts of soybean lecithins
2 parts in hardening agent (101-second)
500 parts of toluene
400 parts of butanone
Earlier 500 parts of toluene, 400 parts of butanone are mixed with mixed solution, dissolve 90 parts vinyl chloride-vinyl acetate-vinyl alcohol copolymer thing, add 10 parts of polyurethane, 8 parts of modified silicones, 30 parts of acetylene carbon blacks, 1 part in wax powder, 10 parts of soybean lecithins, it is pre-dispersed to carry out planet stir about 2 hours, carry out the constant temperature sand milling 35 ℃~45 ℃ scopes then, make the top layer slurry, add 2 parts of hardening agent 101-second before the coating, stir stand-by.
Be coated with magnetosphere on the mylar tape base of 12 μ m, be coated with protective seam on magnetosphere, its thickness is about 2.0~3.0 μ m.Mylar tape base back side coating adhered layer, then, press polish also is cut into the magnetic stripe of 6.5~6.7mm, 12.7mm or 16.0mm, makes adhesive type magnetic strip sample A 1At last, Jia Gong temperature, pressure, time on request, it is compound that sample is carried out lamination, and magnetic stripe is pressed on the PVC card base, makes the PVC magnetic stripe card, and carry out surface gloss test and wearability test.
Embodiment 6
70 parts of vinyl chloride-vinyl acetate-vinyl alcohol copolymer things
70 parts of polyurethanes
10 parts of modified silicones
5 parts of oxidized blacks
10 parts in wax powder
5 parts in aluminium oxide
0.3 part of soybean lecithin
10 parts in hardening agent (101-second)
800 parts of toluene
400 parts of butanone
200 parts of cyclohexanone
Earlier 800 parts of toluene, 400 parts of butanone, 200 parts of cyclohexanone are mixed with mixed solution, dissolve 70 parts vinyl chloride-vinyl acetate-vinyl alcohol copolymer thing, add 70 parts of polyurethane, 10 parts of modified silicones, 5 parts of oxidized blacks, 10 parts in wax powder, 5 parts in aluminium oxide, 0.3 part of soybean lecithin, it is pre-dispersed to carry out planet stir about 2 hours, carry out the constant temperature sand milling 35 ℃~45 ℃ scopes then, make the top layer slurry, add 10 parts of hardening agent 101-second before the coating, stir stand-by.
Be coated with magnetosphere on the mylar tape base of 12 μ m, be coated with protective seam on magnetosphere, its thickness is about 2.0~3.0 μ m.Mylar tape base back side coating adhered layer, then, press polish also is cut into the magnetic stripe of 6.5~6.7mm, 12.7mm or 16.0mm, makes adhesive type magnetic strip sample A 1At last, Jia Gong temperature, pressure, time on request, it is compound that sample is carried out lamination, and magnetic stripe is pressed on the PVC card base, makes the PVC magnetic stripe card, and carry out surface gloss test and wearability test.
Experimental result:
Comparative example/embodiment Surface gloss Abrasion resistance
Comparative example 1 ????≤90 ????≤2000
Comparative example 2 ????≤90 ????≤2000
Embodiment 1 ????≥90 ????≥2000
Embodiment 2 ????≥100 ????≥2500
Embodiment 3 ????≥100 ????≥2500
Embodiment 4 ????≥100 ????≥2500
Embodiment 5 ????≥100 ????≥2500
Embodiment 6 ????≥100 ????≥2500
The surface gloss method of testing: Jia Gong temperature, pressure, time on request, it is compound that sample is carried out lamination, makes the PVC magnetic stripe card, and (the Tai Lvsai instrument TyALSURF) carries out the surface gloss test to use the inductance type surface profiler.
Wear-resisting method of testing: Jia Gong temperature, pressure, time on request, it is compound that sample is carried out lamination, makes the PVC magnetic stripe card, carries out wearability test with the Omron machine for punching the card.
By data in the table as can be seen; after protective seam adopts this prescription; the antiwear characteristic of the adhesive type magnetic strip of making can all meet and exceed requirement; improved the hardness of magnetic stripe; make it have high-wearing feature, and, make it have the characteristics of thermotolerance, high-luster, antistatic behaviour, flexibility and tension stability again; reduce the manufacturing cost of raw-material consumption and magnetic stripe, and prolonged the serviceable life of magnetic stripe.

Claims (10)

1. a high-wearing feature adhesive type magnetic strip is protected the expansion layer by (1) adhered layer, (2) tape base, (3) magnetosphere, (4) and is formed, it is characterized in that, the prescription of wherein said protective seam (weight ratio, part) be:
5~90 parts of polyvinylss
5~100 parts of polyurethanes
2~30 parts of auxiliary agents
3~30 parts of antistatic agents
1~20 part of lapping compound
0.1~10 part of spreading agent
2~30 parts in hardening agent
400~1400 parts of solvents
2. high-wearing feature adhesive type magnetic strip according to claim 1 is characterized in that, the prescription of wherein said protective seam (weight ratio, part) be:
10~60 parts of polyvinylss
10~60 parts of polyurethanes
8~25 parts of auxiliary agents
10~25 parts of antistatic agents
2~10 parts of lapping compounds
0.4~8 part of spreading agent
5~20 parts in hardening agent
900~1100 parts of solvents
3. high-wearing feature adhesive type magnetic strip according to claim 1 and 2, it is characterized in that wherein said polyvinyls is vinyl chloride-vinyl acetate copolymer, vinyl chloride-vinyl acetate-vinyl alcohol copolymer thing, vinyl chloride-vinyl acetate-EDIA multipolymer or vinyl chloride-vinyl acetate-senecioate-hydroxypropyl acrylate multipolymer.
4. high-wearing feature adhesive type magnetic strip according to claim 3 is characterized in that, wherein said polyvinyls is the vinyl chloride-vinyl acetate-vinyl alcohol copolymer thing.
5. high-wearing feature adhesive type magnetic strip according to claim 1 and 2 is characterized in that, wherein said auxiliary agent is silicone oil, silicone or modified silicone.
6. high-wearing feature adhesive type magnetic strip according to claim 5 is characterized in that wherein said auxiliary agent is a modified silicone.
7. high-wearing feature adhesive type magnetic strip according to claim 1 and 2 is characterized in that, wherein said lapping compound can be one or more in aluminium oxide, chromium oxide, titanium dioxide, the wax powder.
8. high-wearing feature adhesive type magnetic strip according to claim 1 and 2 is characterized in that, wherein said spreading agent is lecithin, soybean lecithin, nitrocellulose, stearic acid or resin acid fourth fat.
9. high-wearing feature adhesive type magnetic strip according to claim 8 is characterized in that, wherein said spreading agent is soybean lecithin or lecithin.
10. high-wearing feature adhesive type magnetic strip according to claim 1 and 2 is characterized in that, wherein said hardening agent is a hardening agent 101-second.
CN 200410102591 2004-12-28 2004-12-28 High wearing feature sticking magnetic stripe Pending CN1622127A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200410102591 CN1622127A (en) 2004-12-28 2004-12-28 High wearing feature sticking magnetic stripe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200410102591 CN1622127A (en) 2004-12-28 2004-12-28 High wearing feature sticking magnetic stripe

Publications (1)

Publication Number Publication Date
CN1622127A true CN1622127A (en) 2005-06-01

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200410102591 Pending CN1622127A (en) 2004-12-28 2004-12-28 High wearing feature sticking magnetic stripe

Country Status (1)

Country Link
CN (1) CN1622127A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110183983A (en) * 2019-06-05 2019-08-30 陈佳 A kind of high temperature resistant is anti-stick to take off wear-resisting lamination type magnetic stripe
CN110584436A (en) * 2019-09-03 2019-12-20 溧阳开成毯业有限公司 Magnetic carpet and preparation method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110183983A (en) * 2019-06-05 2019-08-30 陈佳 A kind of high temperature resistant is anti-stick to take off wear-resisting lamination type magnetic stripe
CN110584436A (en) * 2019-09-03 2019-12-20 溧阳开成毯业有限公司 Magnetic carpet and preparation method thereof

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