CA2210174C - Magnet sheet for display - Google Patents
Magnet sheet for display Download PDFInfo
- Publication number
- CA2210174C CA2210174C CA002210174A CA2210174A CA2210174C CA 2210174 C CA2210174 C CA 2210174C CA 002210174 A CA002210174 A CA 002210174A CA 2210174 A CA2210174 A CA 2210174A CA 2210174 C CA2210174 C CA 2210174C
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- Prior art keywords
- sheet
- display
- magnet
- thickness
- magnetic
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/10—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B9/00—Simulators for teaching or training purposes
- G09B9/02—Simulators for teaching or training purposes for teaching control of vehicles or other craft
- G09B9/08—Simulators for teaching or training purposes for teaching control of vehicles or other craft for teaching control of aircraft, e.g. Link trainer
- G09B9/12—Motion systems for aircraft simulators
- G09B9/14—Motion systems for aircraft simulators controlled by fluid actuated piston or cylinder ram
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
- B41M5/40—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used characterised by the base backcoat, intermediate, or covering layers, e.g. for thermal transfer dye-donor or dye-receiver sheets; Heat, radiation filtering or absorbing means or layers; combined with other image registration layers or compositions; Special originals for reproduction by thermography
- B41M5/41—Base layers supports or substrates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/50—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording
- B41M5/502—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording characterised by structural details, e.g. multilayer materials
- B41M5/508—Supports
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B29/00—Maps; Plans; Charts; Diagrams, e.g. route diagram
- G09B29/001—Planning boards
- G09B29/002—Planning boards using magnetic elements
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F7/00—Signs, name or number plates, letters, numerals, or symbols; Panels or boards
- G09F7/02—Signs, plates, panels or boards using readily-detachable elements bearing or forming symbols
- G09F7/04—Signs, plates, panels or boards using readily-detachable elements bearing or forming symbols the elements being secured or adapted to be secured by magnetic means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/06—Vegetal fibres
- B32B2262/062—Cellulose fibres, e.g. cotton
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
- B32B2307/208—Magnetic, paramagnetic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/50—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording
- B41M5/52—Macromolecular coatings
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Educational Administration (AREA)
- Business, Economics & Management (AREA)
- Educational Technology (AREA)
- Aviation & Aerospace Engineering (AREA)
- Optics & Photonics (AREA)
- Mathematical Physics (AREA)
- Laminated Bodies (AREA)
- Magnetic Brush Developing In Electrophotography (AREA)
- Drawing Aids And Blackboards (AREA)
- Credit Cards Or The Like (AREA)
Abstract
A magnet sheet 3 with a thickness of 0.05 to 0.15 mm is formed by molding a material obtained by adding magnetic particles to a synthetic resin material into a sheet and multiple pole magnetizing one surface of the sheet to form alternate N and S poles on that surface. A printing sheet 2 with a thickness of 0.05 to 0.15 mm, constituted by a paper sheet such as a high quality paper sheet or a coated paper sheet or a synthetic paper sheet or a synthetic resin film, is bonded to the non-magnetized surface of the magnet sheet 3. A magnet sheet 1 for display, which has a thickness of 0.1 mm to 0.3 mm, is thus obtained, and it is capable of printing on it with a usual home or office copier or printer.
Description
I~rGNET SHEET FOR DISPLAY
BACKGROUND OF TEE INVENTION
1. FIELD OF THE INVENTION
This invention relates to magnet sheets which can be directly magnetically attached to magnetic surfaces of steel boards, white boards, etc., and more particularly, to magnet sheets for display which are capable of printing print contents thereon using home or business office printers, such as copiers, laser printers, ink jet printers, bubble jet printers, ink ribbon type heat-sensitive printers, dot printers, plotters, etc.
BACKGROUND OF TEE INVENTION
1. FIELD OF THE INVENTION
This invention relates to magnet sheets which can be directly magnetically attached to magnetic surfaces of steel boards, white boards, etc., and more particularly, to magnet sheets for display which are capable of printing print contents thereon using home or business office printers, such as copiers, laser printers, ink jet printers, bubble jet printers, ink ribbon type heat-sensitive printers, dot printers, plotters, etc.
2. PRIOR ART
A magnet sheet, which is made of a material obtained by adding magnetic particles to a synthetic resin material and has one surface with alternate N and S magnetic poles formed by multiple pale magnetization, is sheet-like and flexible and can be magnetically attached detachably to magnetic surfaces of steel boards, white boards, etc.
Thus, it can find extensive applications as marks for car driving beginners, business displays, document binders, drawing boards, and notices to be attached to magnetic surfaces.
The marks for car driving beginners and business displays are produced in a method, in which a white vinyl chloride sheet or like display sheet is bonded with an adhesive or the like to a magnet sheet and a desired display is formed by silk printing or the like on the display sheet, or a method, in Which a display is printed in advance on a display sheet and then the display sheet is bonded likewise to a magnet sheet. They can be conveniently attached to surfaces of magnetic members such as steel boards.
Although displays using magnet sheets as above can be S conveniently magnetically attached to any magnetic surface, they are expensive because each of them is prepared by the above method of bonding a white vinyl chloride sheet or like display sheet on a magnet sheet and printing a desired.
display content thereon by silk printing which requires a printing plate for each color or preliminarily printing a display content on a display sheet using a printer and bonding this display sheet to a magnet sheet. Besides, the kind and form of the display are inevitably limited.
Therefore, it is inevitable for general home or offices to purchase magnet sheets for display, with impressions of display contents, from specialized shops, or displays have to be given up when magnetic sheets with desired display contents are not available.
SUMMARY OF THE INVENTION
In the above circumstances, there has been a demand for a magnet sheet for display, which permits general home or offices to readily and quickly form a desired display content on it and then magnetically attach it to a desired place without need of purchasing any existing magnetic sheet available for display.
It is an object of the present invention to obviate or mitigate the problems associated with conventional magnet sheet displays.
According to an aspect of the present invention there is provided a magnetic display sheet for use with a printer or copier, the magnetic display sheet comprising a magnet sheet having a magnetized surface, including alternate N and S poles formed by multiple pole magnetization, exhibiting a magnetic force at least ten times as great as the weight of the magnetic display sheet sufficient to magnetically attach and hold the magnetic display sheet to the display surface, and a non-magnetized surface, the magnet sheet having a thickness in the range of 0.05 to 0.15 mm, a first paper sheet for being printed on, the first paper sheet having a thickness in the range of 0.05 to 0.15 mm, the first paper sheet being bonded to the non-magnetized surface of the magnet sheet, and a second paper sheet, the second paper sheet having a thickness in the range of 0.05 to 0.1 mm, the second paper sheet being bonded to the magnetized surface of the magnet sheet, wherein the magnetic display sheet has a thickness in the range of 0.15 to 0.3 mm and can be used for printing in a printer or copier.
According to another aspect of the present invention there is provided a magnetic display sheet for use with a printer or copier, the magnetic display sheet comprising a magnet sheet having a first magnetized surface, including alternate N and S poles formed by multiple pole magnetization, exhibiting a magnetic force at least ten times as great as the weight of the magnetic display sheet sufficient to magnetically attach and hold the magnetic display sheet to the display surface, and a second magnetized surface, including alternate N and S poles formed by multiple pole magnetization, exhibiting a magnetic force at least ten times as great as the weight of the magnetic display sheet sufficient to magnetically attach and hold the magnetic display sheet to the display surface, the magnet 2a sheet having a thickness of about 0.1 mm, a first paper sheet for being printed on, the first paper sheet having a thickness of about 0.1 mm, the first paper sheet being bonded to the first magnetized surface of the magnet sheet, and a second paper sheet for being printed on, the second paper sheet having a thickness of about 0.1 mm, the second paper sheet being bonded to the second magnetized surface of the magnet sheet, wherein the magnetic display sheet has a thickness in the range of 0.15 to 0.3 mm and can be used for printing in a printer or copier.
2b BRIEF DESCRIPTION OF THE DRAWINGS
Fig. 1 is a sectional view showing a first embodiment of the magnet sheet for display according to the invention;
Fig. 2 is a view for describing how a magnet sheet for display according to the invention is used; and Fig. 3 is a sectional view showing a second embodiment of the magnet sheet for display according to the invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
Fig. 1 shows a first embodiment of the magnet sheet for display according to the invention. Referring to the figure, reference numeral l designates a magnetic sheet for display. Reference numeral 2 designates a printing sheet consisting of a paper sheet, such as a high quality paper sheet or a coated paper sheet, or a synthetic paper sheet or a synthetic resin film and having a thickness of 0.05 to 0.15 mm. Reference numeral 3 designates a magnet sheet, which is made sheet-like of a material obtained by adding magnetic particles to a synthetic resin material and has at least one surface with alternate N and S poles formed by multiple pole magnetization. Reference numeral 4 designates an anti-transfer coating of a fluorine type material or the like formed on the magnetized surface of the magnet sheet 3.
The printing sheet 2 is suitably selected by taking the printing means used, purpose of use, cost, etc. into considerations, and it may be a sheet of cellulose fibers, an art paper sheet or a coated paper sheet obtained from the cellulose fiber sheet by coating a surface treatment material thereon, a synthetic paper sheet which is a thin synthetic resin film obtained from a synthetic resin material by adding white earth thereto or forming micropores therein, a synthetic resin film, etc. A high quality paper sheet is suitably used for printing with a copier, and a coated paper sheet or an art paper sheet is suitably used for printing an ink jet printer, a bubble jet printer, etc.
When the thickness of the printing sheet 2 is excessive, printing with a printer cannot be obtained.
When the printing sheet 2 has an insufficient thickness, on the other hand, the color (i.e., black color) of the back side magnet sheet 3 will be seen through it. For these reasons, the printing sheet 2 suitably has a thickness of 0.05 to 0.15 mm, preferably about 0.1 mm.
The magnet sheet 3 is formed by extrusion molding a synthetic resin material containing magnetic particles into a sheet. It has N and S poles formed on one surface by multiple pole magnetization and alternately arranged at a constant pitch of 2 to 3 mm. When the thickness of the magnet sheet 3 is excessive; printing with a home or office printer cannot be obtained. When the thickness is insufficient, on the other hand, it is difficult to maintain sufficient magnetic attraction force and intensity. For these reasons, the magnet sheet 3 suitably has a thickness of 0.05 to 0.15 mm, suitably 0.1 mm. This thickness corresponds to a fraction of the thickness and weight of commercially available magnet sheets.
A magnet sheet, which is made of a material obtained by adding magnetic particles to a synthetic resin material and has one surface with alternate N and S magnetic poles formed by multiple pale magnetization, is sheet-like and flexible and can be magnetically attached detachably to magnetic surfaces of steel boards, white boards, etc.
Thus, it can find extensive applications as marks for car driving beginners, business displays, document binders, drawing boards, and notices to be attached to magnetic surfaces.
The marks for car driving beginners and business displays are produced in a method, in which a white vinyl chloride sheet or like display sheet is bonded with an adhesive or the like to a magnet sheet and a desired display is formed by silk printing or the like on the display sheet, or a method, in Which a display is printed in advance on a display sheet and then the display sheet is bonded likewise to a magnet sheet. They can be conveniently attached to surfaces of magnetic members such as steel boards.
Although displays using magnet sheets as above can be S conveniently magnetically attached to any magnetic surface, they are expensive because each of them is prepared by the above method of bonding a white vinyl chloride sheet or like display sheet on a magnet sheet and printing a desired.
display content thereon by silk printing which requires a printing plate for each color or preliminarily printing a display content on a display sheet using a printer and bonding this display sheet to a magnet sheet. Besides, the kind and form of the display are inevitably limited.
Therefore, it is inevitable for general home or offices to purchase magnet sheets for display, with impressions of display contents, from specialized shops, or displays have to be given up when magnetic sheets with desired display contents are not available.
SUMMARY OF THE INVENTION
In the above circumstances, there has been a demand for a magnet sheet for display, which permits general home or offices to readily and quickly form a desired display content on it and then magnetically attach it to a desired place without need of purchasing any existing magnetic sheet available for display.
It is an object of the present invention to obviate or mitigate the problems associated with conventional magnet sheet displays.
According to an aspect of the present invention there is provided a magnetic display sheet for use with a printer or copier, the magnetic display sheet comprising a magnet sheet having a magnetized surface, including alternate N and S poles formed by multiple pole magnetization, exhibiting a magnetic force at least ten times as great as the weight of the magnetic display sheet sufficient to magnetically attach and hold the magnetic display sheet to the display surface, and a non-magnetized surface, the magnet sheet having a thickness in the range of 0.05 to 0.15 mm, a first paper sheet for being printed on, the first paper sheet having a thickness in the range of 0.05 to 0.15 mm, the first paper sheet being bonded to the non-magnetized surface of the magnet sheet, and a second paper sheet, the second paper sheet having a thickness in the range of 0.05 to 0.1 mm, the second paper sheet being bonded to the magnetized surface of the magnet sheet, wherein the magnetic display sheet has a thickness in the range of 0.15 to 0.3 mm and can be used for printing in a printer or copier.
According to another aspect of the present invention there is provided a magnetic display sheet for use with a printer or copier, the magnetic display sheet comprising a magnet sheet having a first magnetized surface, including alternate N and S poles formed by multiple pole magnetization, exhibiting a magnetic force at least ten times as great as the weight of the magnetic display sheet sufficient to magnetically attach and hold the magnetic display sheet to the display surface, and a second magnetized surface, including alternate N and S poles formed by multiple pole magnetization, exhibiting a magnetic force at least ten times as great as the weight of the magnetic display sheet sufficient to magnetically attach and hold the magnetic display sheet to the display surface, the magnet 2a sheet having a thickness of about 0.1 mm, a first paper sheet for being printed on, the first paper sheet having a thickness of about 0.1 mm, the first paper sheet being bonded to the first magnetized surface of the magnet sheet, and a second paper sheet for being printed on, the second paper sheet having a thickness of about 0.1 mm, the second paper sheet being bonded to the second magnetized surface of the magnet sheet, wherein the magnetic display sheet has a thickness in the range of 0.15 to 0.3 mm and can be used for printing in a printer or copier.
2b BRIEF DESCRIPTION OF THE DRAWINGS
Fig. 1 is a sectional view showing a first embodiment of the magnet sheet for display according to the invention;
Fig. 2 is a view for describing how a magnet sheet for display according to the invention is used; and Fig. 3 is a sectional view showing a second embodiment of the magnet sheet for display according to the invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
Fig. 1 shows a first embodiment of the magnet sheet for display according to the invention. Referring to the figure, reference numeral l designates a magnetic sheet for display. Reference numeral 2 designates a printing sheet consisting of a paper sheet, such as a high quality paper sheet or a coated paper sheet, or a synthetic paper sheet or a synthetic resin film and having a thickness of 0.05 to 0.15 mm. Reference numeral 3 designates a magnet sheet, which is made sheet-like of a material obtained by adding magnetic particles to a synthetic resin material and has at least one surface with alternate N and S poles formed by multiple pole magnetization. Reference numeral 4 designates an anti-transfer coating of a fluorine type material or the like formed on the magnetized surface of the magnet sheet 3.
The printing sheet 2 is suitably selected by taking the printing means used, purpose of use, cost, etc. into considerations, and it may be a sheet of cellulose fibers, an art paper sheet or a coated paper sheet obtained from the cellulose fiber sheet by coating a surface treatment material thereon, a synthetic paper sheet which is a thin synthetic resin film obtained from a synthetic resin material by adding white earth thereto or forming micropores therein, a synthetic resin film, etc. A high quality paper sheet is suitably used for printing with a copier, and a coated paper sheet or an art paper sheet is suitably used for printing an ink jet printer, a bubble jet printer, etc.
When the thickness of the printing sheet 2 is excessive, printing with a printer cannot be obtained.
When the printing sheet 2 has an insufficient thickness, on the other hand, the color (i.e., black color) of the back side magnet sheet 3 will be seen through it. For these reasons, the printing sheet 2 suitably has a thickness of 0.05 to 0.15 mm, preferably about 0.1 mm.
The magnet sheet 3 is formed by extrusion molding a synthetic resin material containing magnetic particles into a sheet. It has N and S poles formed on one surface by multiple pole magnetization and alternately arranged at a constant pitch of 2 to 3 mm. When the thickness of the magnet sheet 3 is excessive; printing with a home or office printer cannot be obtained. When the thickness is insufficient, on the other hand, it is difficult to maintain sufficient magnetic attraction force and intensity. For these reasons, the magnet sheet 3 suitably has a thickness of 0.05 to 0.15 mm, suitably 0.1 mm. This thickness corresponds to a fraction of the thickness and weight of commercially available magnet sheets.
The printing sheet 2 and the non-magnetized surface of the magnet sheet 3 are bonded together using an acryle urethane type or like adhesive. The thickness of the adhesive layer is very small compared to the overall thickness of the magnet sheet for display, and is substantially ignorable. Under stringent conditions of its use such that it is held magnetically attached to a magnetic surface for long time or is heated in the magnetically attached state, the magnet sheet may be bonded to or contaminate the magnetic surface. Therefore, the anti-transfer coating 4 of a fluorine type or like material with a small coefficient of friction is provided to a thickness of several microns to the magnetized surface of the magnet sheet 3 for prevention thereof from being bonded to or contaminating the magnetic surface. A magnet sheet with a thickness of about 0.2 mm is thus completed, and it is cut to a suitable size and provided as a roll of sheet having a suitable length.
The thickness of 0.2 mm is substantially the same as the thickness of a thin name card, and thus the magnetic sheet l for display according to the invention is capable of reliably printing using a usual home or office copier or printer. With the thickness of the magnet sheet 1 for display set to about 0.2 mm, the magnet sheet 3 can be magnetized with a magnetizing force, which corresponds to ten times or above the weight of the magnet sheet 1 for display. Thus, even when the magnet sheet 1 for display is magnetized perpendicularly to the magnetic surface, it can be reliably held magnetically attached thereto without possibility of spontaneous fall-down.
Fig. 2 shows how the magnet sheet 1 for display according to the invention is used. In this case, a display content 5, such as a graph, is printed on the printing sheet 2 of the sheet 1, and the sheet 1 is then magnetically attached to a magnetic surface 6 of a white board or the like. The magnetic surface 6 may be a white board, a partitioning member, a locker panel, a cabinet panel, etc., in a school, an office, etc.
The magnet sheet 1 for display may be used for company reports and photographs displayed on white boards or the like, teaching materials displayed on white boards or the like for school lessons or the like, materials utilized in conferences, or shop displays. Since the magnet sheet 1 for display is very thin, it can be readily cut like a paper sheet by using a scissors or a cutter into desired shapes.
Fig. 3 shows a second embodiment of the magnetic sheet for display according to the invention. Like the preceding first embodiment, this magnetic sheet 1 for display comprises a printing sheet 2 with a thickness of 0.05 to 0.15 mm and a magnet sheet 3 with a thickness of 0.05 to 0.15 mm, these sheets being bonded together. In this embodiment, however, no anti-transfer coating is provided on the magnetized surface of the magnet sheet 3. Instead, a printing sheet 7 of the same material as the printing sheet 2 and with a thickness of 0.05 to O.l mm, is laminated on the magnetized surface of the magnet sheet 3 such that the overall thickness of the magnetic sheet 1 for display has a thickness of 0.15 to 0.3 mm.
In the previous first embodiment of the magnetic sheet 1 for display, the printing sheet 2 and the magnet sheet 3 which are made of different materials, have different coefficients of expansion and elongation with changes in the temperature, relatively humidity, etc. Therefore, when the magnet sheet 1 for display is cut into small pieces, each cut piece may be warped or curled. In the second embodiment, the magnet sheet 3 is sandwiched between the two printing sheets of the same material, thus eliminating the elongation/contraction coefficient difference and hence the curling. Since the magnetized surface side printing sheet 7 in the second embodiment is not used for printing, it may be as thin as 0.05 mm so that the ground color of the magnet sheet can be seen through it.
Although not shown, it is possible to provide a double-side printable magnet sheet for display by multiple pole magnetizing both the surfaces of a magnet sheet 3 with a thickness of about O.i mm and bonding a printing sheet 2 about 0.1 mm thick to each magnetized surface of the magnet sheet.
As has been described in the foregoing, the magnet sheet for display according to the invention is manufactured by molding a material obtained by adding magnetic particles to a synthetic resin material into a sheet in the form of a thin film, forming one surface of the sheet with alternate N and S poles by multiple pole magnetization, thereby forming a magnet sheet, and bonding a printing sheet constituted by a paper sheet such as a high quality paper sheet or a coated paper sheet or a synthetic paper sheet or synthetic resin film to the other surface of the magnet sheet, and it permits quick and ready printing of a desired display content on it with a usual home or office printer or copier. The printed magnet sheet for display can be detachably magnetically attached to a magnetic surface of a steel board, a white board, etc. The magnet sheet for display thus permits ready preparation of displays having desired shapes, such as company reports or photographs to be displayed on white boards or the like;
teaching materials to be proeided on white boards or the like for school, lessons or the like, materials used for conferences, and shop displays.
A different magnet sheet for display according to the invention is manufactured by molding a material obtained by adding magnetic particles to a synthetic resin material into a sheet in the form of a thin film, forming at least one surface of the sheet with alternate N and S poles by multiple pole magnetization, thereby forming a magnet sheet, and bonding a printing sheet in the form of a thin film constituted by a paper sheet as a high quality paper sheet or a coated paper sheet or a synthetic paper sheet or a synthetic resin film to each surface of the magnet sheet.
Thus, while the magnet sheet for display permits printing on it with a usual home or office printer or copier and detachably magnetically attaching it to a magnetic surface, with the magnet sheet sandwiched between the two printing sheets of the same material it is possible to eliminate curling due to the elongation/contraction coefficient difference between the magnet sheet and the printing sheet.
The thickness of 0.2 mm is substantially the same as the thickness of a thin name card, and thus the magnetic sheet l for display according to the invention is capable of reliably printing using a usual home or office copier or printer. With the thickness of the magnet sheet 1 for display set to about 0.2 mm, the magnet sheet 3 can be magnetized with a magnetizing force, which corresponds to ten times or above the weight of the magnet sheet 1 for display. Thus, even when the magnet sheet 1 for display is magnetized perpendicularly to the magnetic surface, it can be reliably held magnetically attached thereto without possibility of spontaneous fall-down.
Fig. 2 shows how the magnet sheet 1 for display according to the invention is used. In this case, a display content 5, such as a graph, is printed on the printing sheet 2 of the sheet 1, and the sheet 1 is then magnetically attached to a magnetic surface 6 of a white board or the like. The magnetic surface 6 may be a white board, a partitioning member, a locker panel, a cabinet panel, etc., in a school, an office, etc.
The magnet sheet 1 for display may be used for company reports and photographs displayed on white boards or the like, teaching materials displayed on white boards or the like for school lessons or the like, materials utilized in conferences, or shop displays. Since the magnet sheet 1 for display is very thin, it can be readily cut like a paper sheet by using a scissors or a cutter into desired shapes.
Fig. 3 shows a second embodiment of the magnetic sheet for display according to the invention. Like the preceding first embodiment, this magnetic sheet 1 for display comprises a printing sheet 2 with a thickness of 0.05 to 0.15 mm and a magnet sheet 3 with a thickness of 0.05 to 0.15 mm, these sheets being bonded together. In this embodiment, however, no anti-transfer coating is provided on the magnetized surface of the magnet sheet 3. Instead, a printing sheet 7 of the same material as the printing sheet 2 and with a thickness of 0.05 to O.l mm, is laminated on the magnetized surface of the magnet sheet 3 such that the overall thickness of the magnetic sheet 1 for display has a thickness of 0.15 to 0.3 mm.
In the previous first embodiment of the magnetic sheet 1 for display, the printing sheet 2 and the magnet sheet 3 which are made of different materials, have different coefficients of expansion and elongation with changes in the temperature, relatively humidity, etc. Therefore, when the magnet sheet 1 for display is cut into small pieces, each cut piece may be warped or curled. In the second embodiment, the magnet sheet 3 is sandwiched between the two printing sheets of the same material, thus eliminating the elongation/contraction coefficient difference and hence the curling. Since the magnetized surface side printing sheet 7 in the second embodiment is not used for printing, it may be as thin as 0.05 mm so that the ground color of the magnet sheet can be seen through it.
Although not shown, it is possible to provide a double-side printable magnet sheet for display by multiple pole magnetizing both the surfaces of a magnet sheet 3 with a thickness of about O.i mm and bonding a printing sheet 2 about 0.1 mm thick to each magnetized surface of the magnet sheet.
As has been described in the foregoing, the magnet sheet for display according to the invention is manufactured by molding a material obtained by adding magnetic particles to a synthetic resin material into a sheet in the form of a thin film, forming one surface of the sheet with alternate N and S poles by multiple pole magnetization, thereby forming a magnet sheet, and bonding a printing sheet constituted by a paper sheet such as a high quality paper sheet or a coated paper sheet or a synthetic paper sheet or synthetic resin film to the other surface of the magnet sheet, and it permits quick and ready printing of a desired display content on it with a usual home or office printer or copier. The printed magnet sheet for display can be detachably magnetically attached to a magnetic surface of a steel board, a white board, etc. The magnet sheet for display thus permits ready preparation of displays having desired shapes, such as company reports or photographs to be displayed on white boards or the like;
teaching materials to be proeided on white boards or the like for school, lessons or the like, materials used for conferences, and shop displays.
A different magnet sheet for display according to the invention is manufactured by molding a material obtained by adding magnetic particles to a synthetic resin material into a sheet in the form of a thin film, forming at least one surface of the sheet with alternate N and S poles by multiple pole magnetization, thereby forming a magnet sheet, and bonding a printing sheet in the form of a thin film constituted by a paper sheet as a high quality paper sheet or a coated paper sheet or a synthetic paper sheet or a synthetic resin film to each surface of the magnet sheet.
Thus, while the magnet sheet for display permits printing on it with a usual home or office printer or copier and detachably magnetically attaching it to a magnetic surface, with the magnet sheet sandwiched between the two printing sheets of the same material it is possible to eliminate curling due to the elongation/contraction coefficient difference between the magnet sheet and the printing sheet.
Claims (3)
1. A magnetic display sheet for use with a printer or copier, said magnetic display sheet comprising:
a magnet sheet having a magnetized surface, including alternate N and S poles formed by multiple pole magnetization, exhibiting a magnetic force at least ten times as great as the weight of said magnetic display sheet sufficient to magnetically attach and hold said magnetic display sheet to the display surface, and a non-magnetized surface, said magnet sheet having a thickness in the range of 0.05 to 0.15 mm;
a first paper sheet for being printed on, said first paper sheet having a thickness in the range of 0.05 to 0.15 mm, said first paper sheet being bonded to said non-magnetized surface of said magnet sheet; and a second paper sheet, said second paper sheet having a thickness in the range of 0.05 to 0.1 mm, said second paper sheet being bonded to said magnetized surface of said magnet sheet;
wherein said magnetic display sheet has a thickness in the range of 0.15 to 0.3 mm and can be used for printing in a printer or copier.
a magnet sheet having a magnetized surface, including alternate N and S poles formed by multiple pole magnetization, exhibiting a magnetic force at least ten times as great as the weight of said magnetic display sheet sufficient to magnetically attach and hold said magnetic display sheet to the display surface, and a non-magnetized surface, said magnet sheet having a thickness in the range of 0.05 to 0.15 mm;
a first paper sheet for being printed on, said first paper sheet having a thickness in the range of 0.05 to 0.15 mm, said first paper sheet being bonded to said non-magnetized surface of said magnet sheet; and a second paper sheet, said second paper sheet having a thickness in the range of 0.05 to 0.1 mm, said second paper sheet being bonded to said magnetized surface of said magnet sheet;
wherein said magnetic display sheet has a thickness in the range of 0.15 to 0.3 mm and can be used for printing in a printer or copier.
2. A magnetic display sheet for use with a printer or copier, said magnetic display sheet comprising:
a magnet sheet having a first magnetized surface, including alternate N and S poles formed by multiple pole magnetization, exhibiting a magnetic force at least ten times as great as the weight of said magnetic display sheet sufficient to magnetically attach and hold said magnetic display sheet to the display surface, and a second magnetized surface, including alternate N and S poles formed by multiple pole magnetization, exhibiting a magnetic force at least ten times as great as the weight of said magnetic display sheet sufficient to magnetically attach and hold said magnetic display sheet to the display surface, said magnet sheet having a thickness of about 0.1 mm;
a first paper sheet for being printed on, said first paper sheet having a thickness of about 0.1 mm, said first paper sheet being bonded to said first magnetized surface of said magnet sheet; and a second paper sheet for being printed on, said second paper sheet having a thickness of about 0.1 mm, said second paper sheet being bonded to said second magnetized surface of said magnet sheet;
wherein said magnetic display sheet has a thickness in the range of 0.15 to 0.3 mm and can be used for printing in a printer or copier.
a magnet sheet having a first magnetized surface, including alternate N and S poles formed by multiple pole magnetization, exhibiting a magnetic force at least ten times as great as the weight of said magnetic display sheet sufficient to magnetically attach and hold said magnetic display sheet to the display surface, and a second magnetized surface, including alternate N and S poles formed by multiple pole magnetization, exhibiting a magnetic force at least ten times as great as the weight of said magnetic display sheet sufficient to magnetically attach and hold said magnetic display sheet to the display surface, said magnet sheet having a thickness of about 0.1 mm;
a first paper sheet for being printed on, said first paper sheet having a thickness of about 0.1 mm, said first paper sheet being bonded to said first magnetized surface of said magnet sheet; and a second paper sheet for being printed on, said second paper sheet having a thickness of about 0.1 mm, said second paper sheet being bonded to said second magnetized surface of said magnet sheet;
wherein said magnetic display sheet has a thickness in the range of 0.15 to 0.3 mm and can be used for printing in a printer or copier.
3. The magnetic display sheet as set forth in claim 2, wherein said magnetized surface of said magnet sheet comprises alternate N and S poles formed by multiple pole magnetization.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP201283/1996 | 1996-07-11 | ||
JP8201283A JP2819017B2 (en) | 1996-07-11 | 1996-07-11 | Display magnet sheet |
FR9710811A FR2767951B1 (en) | 1996-07-11 | 1997-08-29 | MAGNETIC SHEET FOR DISPLAY |
DE19739174A DE19739174B4 (en) | 1996-07-11 | 1997-09-06 | Magnetic foil for presentation purposes |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2210174A1 CA2210174A1 (en) | 1998-01-11 |
CA2210174C true CA2210174C (en) | 2004-10-26 |
Family
ID=27217725
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002210174A Expired - Fee Related CA2210174C (en) | 1996-07-11 | 1997-07-10 | Magnet sheet for display |
Country Status (5)
Country | Link |
---|---|
JP (1) | JP2819017B2 (en) |
CA (1) | CA2210174C (en) |
DE (1) | DE19739174B4 (en) |
FR (1) | FR2767951B1 (en) |
GB (1) | GB2315367B (en) |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9706368D0 (en) * | 1997-03-27 | 1997-05-14 | Lingard Heather C | Flexible magnets |
NL1009129C2 (en) | 1998-05-11 | 1999-11-12 | Budev Bv | Flexible laminate and method for manufacturing it. |
AU2639200A (en) * | 1999-01-28 | 2000-08-18 | Johannes Nicolaas Dippenaar | Display system |
US6468666B2 (en) * | 1999-11-22 | 2002-10-22 | Premark Rwp Holdings, Inc. | Magnetic susceptible markerboard |
US6472083B1 (en) | 2000-08-16 | 2002-10-29 | Premark Rwp Holdings, Inc. | Metal surfaced high pressure laminate |
US6495265B1 (en) | 2000-08-28 | 2002-12-17 | Premark Rwp Holdings, Inc. | Radiation shielded laminate |
CA2680699C (en) * | 2000-11-26 | 2013-05-14 | Magnetnotes, Ltd. | Magnetic substrates, composition and method for making the same |
US7338573B2 (en) | 2000-11-26 | 2008-03-04 | Magnetnotes, Ltd. | Magnetic substrates with high magnetic loading |
NL1017761C2 (en) * | 2001-04-03 | 2002-10-07 | Ferro Informatie Systemen B V | Printable information carrier, method for applying information thereon, and system for exchangeable information. |
JP3520871B2 (en) | 2002-01-31 | 2004-04-19 | ソニー株式会社 | Magnetizing method and magnetizing device |
CA2389403A1 (en) * | 2002-06-05 | 2003-12-05 | Magx Co., Ltd. | Display device |
US20040009370A1 (en) * | 2002-07-09 | 2004-01-15 | Seiji Abe | Magnet sheet for display and method of manufacturing the same |
SE526078C2 (en) * | 2003-02-21 | 2005-06-28 | Grindfill Ab | Passively magnetic foil for notice device for posting information or advertisement on supportive structure, includes layer containing iron material and coated with coating material that forms additional layer directly on the layer |
FR2892055A1 (en) * | 2005-10-19 | 2007-04-20 | Agir Graphic Sa | Printed article with magnetic surface, e.g. office calendar, has outer layers attached to rigid core by adhesive containing magnetic particles |
CN201176546Y (en) * | 2007-11-23 | 2009-01-07 | 广州新莱福磁电有限公司 | Magnetic paper products capable of directly being printed on |
US20100127207A1 (en) * | 2008-11-06 | 2010-05-27 | Dayton Joseph Deetz | Magnetic receptive extruded films |
JP2010247436A (en) * | 2009-04-16 | 2010-11-04 | Mag Life:Kk | Synthetic resin laminated sheet and usage of the same |
JP5330369B2 (en) * | 2010-12-28 | 2013-10-30 | ニチレイマグネット株式会社 | Anti-bending magnetic plastic film and magnetic card using the same |
JP6004583B2 (en) * | 2013-05-10 | 2016-10-12 | ニチレイマグネット株式会社 | Superposition type magnetic sticking display mechanism |
CN103303019A (en) * | 2013-06-26 | 2013-09-18 | 常熟印刷厂有限公司 | Printing method of magnetic publication |
US9028951B2 (en) | 2013-09-10 | 2015-05-12 | Magnetnotes, Ltd. | Magnetic receptive printable media |
US9346307B2 (en) | 2013-11-27 | 2016-05-24 | Ultraflex Systems, Inc. | Printable magnetic receptive composite sheet and method of making |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE8411402U1 (en) * | 1984-09-06 | Berner, Hans-Günter, 2300 Altenholz | Magnetic film web | |
DE1564099B2 (en) * | 1966-12-19 | 1971-11-11 | Holtz, Hermann, 6200 Wiesbaden | FLEXIBLE SOFT MAGNETIC ADHESIVE FILM |
CH502664A (en) * | 1969-06-12 | 1971-01-31 | Burkholter Dori | Device with base and information carrier magnetically adhering to it |
FR2061851A5 (en) * | 1969-07-04 | 1971-06-25 | Moge Jean | |
DE1936977A1 (en) * | 1969-07-21 | 1971-02-04 | Fritz Fortenbacher | Magnetically adhering plate made of rubber or plastic-bonded permanent magnet material |
US3629756A (en) * | 1970-03-23 | 1971-12-21 | Herman Holtz | Thin sheet magnet |
FR2343299A1 (en) * | 1976-02-20 | 1977-09-30 | Villanfin Raymond | Display panel for marking with felt tip pen - has magnetic back and thin paper sheet resting on magnetic elastomer |
WO1987003418A1 (en) * | 1985-11-22 | 1987-06-04 | Zahnradfabrik Friedrichshafen Ag | Permanent-magnetic foil |
DE8913913U1 (en) * | 1989-11-25 | 1990-01-11 | Schulz, Beate, 8150 Holzkirchen | Mandatory marking signs on automobiles |
-
1996
- 1996-07-11 JP JP8201283A patent/JP2819017B2/en not_active Expired - Lifetime
-
1997
- 1997-07-10 CA CA002210174A patent/CA2210174C/en not_active Expired - Fee Related
- 1997-07-10 GB GB9714577A patent/GB2315367B/en not_active Expired - Fee Related
- 1997-08-29 FR FR9710811A patent/FR2767951B1/en not_active Expired - Fee Related
- 1997-09-06 DE DE19739174A patent/DE19739174B4/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP2819017B2 (en) | 1998-10-30 |
FR2767951A1 (en) | 1999-03-05 |
GB2315367A (en) | 1998-01-28 |
CA2210174A1 (en) | 1998-01-11 |
DE19739174B4 (en) | 2008-03-06 |
GB9714577D0 (en) | 1997-09-17 |
JPH1024534A (en) | 1998-01-27 |
FR2767951B1 (en) | 1999-11-12 |
GB2315367B (en) | 2000-09-20 |
DE19739174A1 (en) | 1999-03-11 |
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Legal Events
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EEER | Examination request | ||
MKLA | Lapsed |