CN214705606U - Printable flexible membrane material capable of reducing magnetic powder consumption - Google Patents
Printable flexible membrane material capable of reducing magnetic powder consumption Download PDFInfo
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- CN214705606U CN214705606U CN202121099397.6U CN202121099397U CN214705606U CN 214705606 U CN214705606 U CN 214705606U CN 202121099397 U CN202121099397 U CN 202121099397U CN 214705606 U CN214705606 U CN 214705606U
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Abstract
The utility model relates to a flexible diaphragm material can be printed of reduction magnetic quantity, characterized in that, by the flexible anisotropic permanent magnetism magnetic glue layer of inseparable laminating and coated the soft magnetic layer decorate, can print or the flexible diaphragm layer of erasing and writing is constituteed, the another side of flexible anisotropic permanent magnetism magnetic glue layer is the multipolar magnetism face that magnetizes of plane linearity, and the face of coating is binding face. According to the embodiment of the technical scheme, under the condition that the same magnetic attraction force is kept, the consumption of the magnetic material is greatly reduced compared with that of the magnetic material in the prior art, and the iron powder, the isotropic ferrite magnetic powder and the anisotropic ferrite magnetic powder are all derived from iron ore raw materials, so that iron ore resources serving as strategic materials are efficiently utilized, the flexible printable function of the diaphragm is continuously maintained, the total thickness of the magnetic layer is greatly reduced, the installation of the diaphragm is firmer due to weight reduction, and the transportation and storage cost is reduced.
Description
Technical Field
The utility model belongs to the magnetic material field especially relates to a printable flexible diaphragm material of reduction magnetic quantity.
Background
The 'iron oxide and ferrite magnetic material' of Yi Yong Xiang and Sun rock describes the role of iron oxide in ferrite magnetic material, aiming at Fe in China2O3The technical scheme provides a flexible diaphragm material which keeps the suction force and reduces the magnetic powder consumption, guides the production field of the magnetic material diaphragm to effectively reduce the consumption of iron ore, protects earth resources and can be continuously developed.
The invention discloses a suspension type magnetic POP advertisement material with a notice number of CN105869519B and a preparation method thereof. After two outside magnetic surfaces of sandwich layer permanent magnetism were magnetized alone, mutually inhaled with the soft magnetic surface of surface course, magnetism is inhaled and is taken place at permanent magnetism sandwich layer and soft magnetic surface layer, and this purpose realizes the random separation and reunion of surface course and sandwich layer through magnetism, realizes changing advertisement diaphragm layer at will, and the sandwich layer remains to go on using, reduces the discarded object, this also is a mode of practicing thrift the magnetism consumptive material.
The application number is CN200820045477.1, a magnetic wall map, the utility model provides a magnetic wall map, which comprises a wall map and a magnetic sheet, wherein the magnetic sheet is connected with an adhesive layer or a non-setting adhesive layer; the hanging chart comprises an erasing layer, a printing layer and a metal layer, wherein the erasing layer and the metal layer are respectively connected with the outer side and the inner side of the printing layer, and the magnetic sheet is connected with the metal layer of the hanging chart in an adsorption mode. The surface of the magnetic wall map is erasable, can be erased and written at will in occasions such as teaching, speech and the like without damaging the pattern of the wall map; the adhesive tape can be detachably attached to a plane such as a wall or a blackboard and the like, and does not need operations of punching, nailing and the like to destroy the wall surface; the magnetic attraction hanging mode of the magnetic hanging picture ensures that the hanging picture is easy to stick and tear, is very convenient to use and has better applicability. But this solution does not involve saving the consumption of magnetic raw material.
The technical scheme does not relate to the theme of reducing the consumption of magnetic raw materials because the coating soft magnetic surface and the permanent magnetic surface in the prior art are matched in a common separated mode in the membrane materials, and the magnetic force adsorption is generated on the bordering surfaces of the two membranes so as to realize the random replacement of the coated soft magnetic surface, namely the display surface, or the coating soft magnetic surface and the permanent magnetic surface are integrated in a bonding mode and the like but are used for adsorbing objects outside the coated soft magnetic surface.
The technical scheme of the application firstly realizes that the sum of the magnetic materials used in the specific embodiment of the technical scheme is only 41-56% of the using amount of the magnetic powder of the diaphragm in the prior art under the condition that the size of the suction force is kept unchanged in the field of printable flexible magnetic diaphragm materials, so that the consumption of iron ore which is the same raw material of iron powder and ferrite is immeasurable in the guidance effect of the iron ore to the magnetic production industry is greatly reduced.
It is stated and defined herein for anisotropic magnetic materials that magnetocrystalline anisotropic magnetic materials, in magnetic matter, the spontaneous magnetization results mainly from the exchange between spins, which is isotropic in nature, and in crystals where the spontaneous magnetization can point in any direction without changing the internal energy of the system if no additional interactions exist. In fact, in magnetic materials, the spontaneous magnetization is always in one or several particular directions, called easy axes. The crystal has easy axis and hard axis of magnetization, and different crystal orientation of the crystal has different magnetic properties, which is called magnetocrystalline anisotropy. The anisotropic ferrite magnetic powder is magnetocrystalline anisotropic ferrite magnetic powder, and the isotropic ferrite magnetic powder is magnetocrystalline isotropic ferrite magnetic powder.
SUMMERY OF THE UTILITY MODEL
A printable flexible membrane material capable of reducing the using amount of magnetic powder comprises a tightly attached flexible anisotropic permanent magnet adhesive layer and a decorative, printable or erasable flexible membrane layer coated with a soft magnet layer, wherein the other side surface of the flexible anisotropic permanent magnet adhesive layer is a planar linear multi-pole magnetizing surface, and the coating surface is a binding surface.
The flexible anisotropic permanent magnetic glue layer is formed in a synchronous pulse magnetic field orientation forming mode or a synchronous calendering mechanical orientation forming mode.
The soft magnetic layer is a modified polymer soft magnetic layer formed by coating soft magnetic material powder as a filler.
The soft magnetic material is one of pure iron, low carbon steel, iron-silicon alloy, iron-aluminum alloy, iron-silicon-aluminum alloy, nickel-iron alloy, iron-cobalt alloy, soft magnetic ferrite, amorphous soft magnetic alloy, microcrystalline soft magnetic alloy, nanocrystalline soft magnetic alloy and the above materials containing impurities.
The coated matrix component is one of EVA emulsion, VAE emulsion, propyl benzene emulsion, silicone-acrylic emulsion, pure acrylic emulsion, vinyl acetate-acrylic emulsion and polyurethane emulsion.
The coating mode is one of roller coating, knife scraping and silk printing.
The flexible anisotropic permanent magnetic glue layer is a flexible modified high polymer layer with anisotropic permanent magnetic material powder as a filler.
The anisotropic permanent magnet material is one of anisotropic aluminum nickel cobalt permanent magnet alloy, anisotropic iron cobalt permanent magnet alloy, anisotropic permanent magnet ferrite and anisotropic rare earth permanent magnet material.
The flexible anisotropic permanent magnet adhesive layer is a flexible anisotropic ferrite permanent magnet adhesive layer.
The decorative, printable or writable flexible membrane layer coated with the soft magnetic layer is a flexible membrane layer coated with iron powder.
The thickness of the flexible anisotropic ferrite permanent magnetic glue layer is 0.20 mm-0.30 mm, and the thickness of the coating iron powder is 0.08 mm-0.15 mm.
The density of the flexible anisotropic ferrite permanent magnetic layer is 3.6 +/-0.2 g/cm3The density of the coating iron powder is 2.8 +/-0.3 g/cm3。
The other side of the flexible anisotropic permanent magnet adhesive layer is a mounting contact surface in one of a magnetic attraction mode and a magnetic attraction and adhesion mode.
And a uv protective layer or an adhesive layer is arranged on the other side surface of the flexible anisotropic permanent magnetic glue layer.
The decorative, printable or writable flexible membrane is one of paper, leather, textile and printable or writable plastic film.
The thickness of the decorative, printable or erasable flexible membrane layer in the flexible membrane layer coated with the soft magnetic layer and capable of being printed or written is 0.02 mm-0.40 mm.
Advantageous effects
1. Compared with the comparative examples 1, 2 and 3, in the specific embodiment of the technical scheme, under the condition that the suction force is maintained to be the same, the total using weight of the magnetic material, the unit weight of the magnetic layer and the thickness percentage are greatly reduced, so that the loss of iron ore raw materials is effectively reduced, and the iron ore resources are more effectively utilized in the magnetic industry. See table 6 and its analysis and conclusions for details.
2. In the specific embodiment of the technical scheme, the iron powder coated soft magnetic layer is tightly attached to one side of the flexible anisotropic ferrite permanent magnetic layer, and the iron powder layer is coated in the magnetic field, so that the attraction lines are gathered, and the attraction of the diaphragm is improved; the diaphragm is printed and replaced conveniently in the prior art, but the suction force cannot be improved by assistance; and the coating mode of the technical scheme has the advantages of thin thickness and small density, effectively reduces the using amount of the soft magnet powder, and obtains the unexpected function of keeping the membrane material soft.
3. The whole diaphragm material of this technical scheme when reducing the ferrite quantity, especially obtains unexpected effect: the whole thickness of the diaphragm can be reduced, the weight is reduced, the mounting effect of the diaphragm is firmer, and the transportation and storage cost is reduced.
4. According to the technical scheme, the anisotropic magnetic powder replaces isotropic magnetic powder, and through synchronous magnetic field or mechanical orientation in the forming process and subsequent further magnetic field orientation and magnetization, the consumption of magnetic raw materials with the same quality can realize higher magnetic performance, iron ore resources can be effectively utilized, the mass production is easy, the implementation is easy, and the method is worthy of popularization and application.
Drawings
FIG. 1 is a schematic view of the product structure in the present technical solution, wherein 1 is a flexible membrane layer coated with a soft magnetic layer, 1a is a flexible membrane layer coated with a soft magnetic layer, and 1b is a flexible membrane layer coated with a soft magnetic layer; 2 is a flexible anisotropic permanent magnetic glue layer; 1 and 2 are already attached before magnetization; 2s is magnetizing and mounting surface.
FIG. 2 is a schematic view of a comparative example product structure, 1 is a decorative, printable or erasable flexible film coated with a soft magnetic layer, 1a is a decorative, printable or erasable flexible film, 1b is a coated soft magnetic layer; 2' is a flexible isotropic permanent magnetic glue layer; 2S ' is a magnetizing surface, and the 2S ' surface is magnetically attracted with the 1S ' surface after being magnetized.
Fig. 3 is a schematic diagram of the orientation effect of the planar linear multi-pole magnetizing magnetic field applied to the membrane material along the rolling direction.
Detailed Description
The technical solution of the present invention will be further explained with reference to the drawings of the specification, specific examples and comparative examples, and any non-inventive addition, decoration and utilization of the technical solution that does not achieve significant technical effects will fall within the scope of the present technical solution.
Specific examples 1, 2 and 3
Referring to fig. 1, a printable flexible film material for reducing the amount of magnetic powder used is composed of a tightly connected flexible anisotropic permanent magnetic ferrite magnetic glue layer 2 and a decorative, printable or erasable flexible film layer 1 coated with an iron powder layer, wherein 1a is a coating substrate in a record table, and respectively: FP-370, 260. mu. mP; 1b is a coating iron powder layer; the anisotropic permanent magnetic ferrite magnetic glue layer is attached to the surface of the coated iron powder layer of the flexible membrane, and the other side surface of the anisotropic ferrite permanent magnetic glue layer is a planar linear multi-pole magnetizing surface; the coating iron powder layer 1b is a modified polymer soft magnetic layer formed by coating soft magnetic powder serving as a filler; what is needed isOne of EVA emulsion, VAE emulsion, propyl benzene emulsion, silicone-acrylic emulsion, pure acrylic emulsion, vinyl acetate-acrylic emulsion and polyurethane emulsion is used as the coated matrix component; the coating mode is knife scraping; the anisotropic ferrite magnetic glue layer is a flexible modified high polymer layer taking anisotropic ferrite powder as a filler; the maximum magnetic energy product is 1.40 +/-0.05 MGOe; the density is 3.6 +/-0.2 g/cm3The thicknesses of the components are respectively 0.20mm, 0.25mm and 0.30 mm; the thickness of the coating iron powder layer is 0.10mm and 0.12mm respectively; the density is 2.8 +/-0.3 g/cm3(ii) a The outer side surface 2S of the anisotropic ferrite magnetic glue layer is provided with a uv protective layer which is a planar linear multi-pole magnetizing surface.
The attraction force and the surface magnetism on the magnetized surface 2S of the film material were measured, and the results are shown in table 1, and the thickness of each layer of the film material and the weight per unit area of the film were measured, and the results are shown in table 2.
Comparative examples 1, 2 and 3
Referring to fig. 2, the difference from the specific embodiment is that 2 'is a flexible isotropic permanent magnetic adhesive layer, which is a modified polymer material layer with isotropic ferrite powder as filler, the maximum magnetic energy product of the modified polymer material layer is 0.65 ± 0.05MGOe, after the planar multi-pole linear magnetization of the magnetization surface 2S' is magnetically attracted to the 1S 'surface of the flexible diaphragm layer 1, the maximum values of surface magnetism and attractive force, the weight per unit area and the thickness on the magnetization surface 2S' of the diaphragm material are measured, and the results are recorded in table 3.
Table 1, 2, 3 notes:
FP-370 is a PET film or PP film sheet with a thickness of 0.02mm to 0.2 mm.
2.260 μmPP is a sheet of PP film with a thickness of 0.26 mm.
3. Tables 1, 2, 3 subsequent analyses of the attraction and the apparent magnetism all used values which tended to stabilize after 3 days.
The magnetic distances of 4.1.5mm and 2.0mm are the magnetic distances for carrying out planar linear multi-pole magnetization on the other surface, namely the mounting surface, of the permanent magnet layer in the technical scheme of the application, the data are analyzed subsequently, the thickness of the data is equal to or less than 3.0mm, the magnetic distance of 1.5mm is adopted, the thickness of the data in a table 3 is larger than 0.3mm, and the data of the magnetic distance of 2.0mm are adopted.
Data results analysis and conclusions for examples and comparative examples:
1. in the technical scheme, the 3 examples correspond to the 3 comparative examples in one-to-one way in terms of attraction and surface magnetism, and the sizes are equivalent, and are detailed in the following table 4.
2. In this embodiment, 3 coated iron powder layers are closely attached to the back of the anisotropic magnetic glue layer, and gather divergent magnetic lines, so that, compared with the non-attachment, the attraction force and the surface magnetism of the magnetizing surface are both greatly increased, the attraction force is increased by more than 66%, and the surface magnetism is increased by more than 27%, and it can be seen that, along with the increase of the thickness of the anisotropic permanent magnetic ferrite, the effect of the coated iron powder with the same thickness shows a decreasing trend, which is detailed in table 5 below.
3. Under the condition that the suction force is equivalent, the comparison between the thickness and the unit area weight of the technical scheme and the comparative example is as follows, and the detailed table is shown in a table 6:
the thickness of the magnetic layer contained in the diaphragm is reduced by the following percentage in consideration of the thickness of the coated iron powder layer: 36% or more in example 1, 47% or more in example 2, and 53% or more in example 3; after the thickness of the coated iron powder layer is not considered, the thickness reduction percentage of the isotropic and anisotropic permanent magnet layers is only compared: 60% for example 1, 64% for example 2 and 67% for example 3.
The weight of the film per unit area, after considering the thickness of the coated iron powder layer, the weight reduction percentage is as follows: example 1 was a 41% or greater reduction, example 2 was a 51% reduction, and example 3 was a 56% reduction; after the thickness of the coated iron powder layer is not considered, the weight reduction percentage of the isotropic and anisotropic permanent magnetic layers is only compared: 60% for example 1, 64% for example 2 and 67% for example 3.
And (4) conclusion: compared with a comparative example, the technical scheme adopts the magnetic glue of anisotropic magnetic powder, the magnetizing surface is arranged at the outer side of the anisotropic magnetic glue of the soft magnetic layer formed by closely attaching a coating mode, and as a result, compared with the isotropic magnetic glue layer with the same suction force, the thickness of the magnetic layer of the diaphragm product is greatly reduced, the weight of the magnetic layer is greatly reduced, and the iron powder, the anisotropic ferrite and the isotropic ferrite are all derived from iron ore serving as raw materials, so that the utilization rate of the iron ore is greatly improved; the coating layer is positioned at the position of the core layer of the diaphragm, and the density is less than 2.8g/cm3The thickness is thin and is only 0.10-0.12mm, and the flexibility of the membrane is not reduced due to the increase of the middle gluing layer.
Remarking:
1. the comparison of the thicknesses is the percentage reduction of the thicknesses of the technical scheme (coated iron powder + anisotropic ferrite) and the comparative example (permanent magnet layer isotropic ferrite):
thickness difference (coating iron powder + anisotropic ferrite-permanent magnetic layer isotropic ferrite) 100/thickness (permanent magnetic layer isotropic ferrite).
2. The weight comparison is the percentage of weight reduction between the technical scheme (coating iron powder + anisotropic ferrite) and the comparative example (permanent magnetic layer isotropic ferrite):
the difference in weight per unit area (coated iron powder + anisotropic ferrite-permanent-magnet-layer isotropic ferrite) was 100/weight per unit area (permanent-magnet-layer isotropic ferrite).
Claims (12)
1. A printable flexible membrane material capable of reducing the using amount of magnetic powder is characterized by comprising a flexible anisotropic permanent magnetic adhesive layer and a decorative, printable or erasable flexible membrane layer, wherein the flexible anisotropic permanent magnetic adhesive layer is tightly attached to the flexible anisotropic permanent magnetic adhesive layer, the decorative, printable or erasable flexible membrane layer is coated with a soft magnetic layer, the other side surface of the flexible anisotropic permanent magnetic adhesive layer is a planar linear multipole magnetized surface, and the coated surface is an attaching surface.
2. The printable flexible film material for reducing the amount of magnetic powder according to claim 1, wherein the flexible anisotropic permanent magnetic glue layer is formed by synchronous pulsed magnetic field orientation or synchronous calendering mechanical orientation.
3. The printable flexible film material for reducing the amount of magnetic powder according to claim 1, wherein the coating is one of roll coating, knife coating, and screen printing.
4. A printable flexible film material for reducing the amount of magnetic powder used according to claim 1, wherein the flexible anisotropic permanent magnet adhesive layer is a flexible anisotropic ferrite permanent magnet adhesive layer.
5. A printable flexible film material for reducing the amount of magnetic powder used according to claim 4, wherein the flexible film layer coated with soft magnetic layer that is decorated, printable or erasable is a flexible film layer coated with iron powder.
6. The printable flexible film material for reducing the amount of magnetic powder in accordance with claim 5, wherein the thickness of the flexible anisotropic ferrite permanent magnetic layer is 0.20mm to 0.30mm, and the thickness of the coated iron powder is 0.08mm to 0.15 mm.
7. A printable flexible film material with reduced magnetic powder usage according to claim 6, wherein the flexible anisotropic ferrite permanentmagnet glue layer densityIs 3.6 +/-0.2 g/cm3The density of the coating iron powder is 2.8 +/-0.3 g/cm3。
8. The printable flexible film material for reducing the amount of magnetic powder according to claim 1, wherein the other side of the flexible anisotropic permanent magnetic adhesive layer is a mounting contact surface in a magnetic attraction manner.
9. The printable flexible film material for reducing the amount of magnetic powder according to claim 1, wherein the other side of the flexible anisotropic permanent magnetic adhesive layer is a mounting contact surface by magnetic attraction and gluing.
10. A printable flexible film material for reducing the amount of magnetic powder used according to claim 1, wherein the other side of the flexible anisotropic permanent magnetic layer is provided with a uv protective layer or an adhesive layer.
11. A printable flexible film material for reducing the amount of magnetic powder used according to claim 1, wherein the decorative, printable or erasable flexible film layer is one of paper, leather, textile, printable or writable plastic film.
12. The printable flexible film material for reducing the amount of magnetic powder according to claim 1, wherein the thickness of the decorative, printable, or erasable flexible film layer in the decorative, printable, or erasable flexible film layer coated with the soft magnetic layer is 0.02mm to 0.40 mm.
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Address after: 511300 No. 1, Xinke Road, Ningxi street, Zengcheng District, Guangzhou, Guangdong (in the core area of Zengcheng economic and Technological Development Zone) Patentee after: GUANGZHOU XINLAIFU MAGNETIC MATERIALS Co.,Ltd. Address before: 511300 No. 2 Xiangshan Avenue, Yongning Street, Zengcheng District, Guangzhou, Guangdong Province (core zone of Zengcheng Economic and Technological Development Zone) Patentee before: GUANGZHOU XINLAIFU MAGNETIC MATERIALS Co.,Ltd. |