WO2009105944A1

WO2009105944A1 - A magnetic whiteboard sheet

Info

Publication number: WO2009105944A1
Application number: PCT/CN2008/071241
Authority: WO
Inventors: 王学钊; 周水明; 汪小明
Original assignee: 广州新莱福磁电有限公司
Priority date: 2008-02-29
Filing date: 2008-06-10
Publication date: 2009-09-03
Also published as: CN201176076Y

Abstract

A magnetic whiteboard sheet includes a lamina layer(2), a magnetic coat layer(3), and an impermeable layer(1). The side surface of the lamina layer(2) is tightly adhered to the said impermeable layer(1) , and the other side surface is affixed to the magnetic coat layer(3). The magnetic whiteboard sheet can be cut into a desirable size sheet according to the use requirement. The sheet can be attached to any ferrous surface so as to form a writing hard whiteboard, and can be erasable written with a marker pen.

Description

Manual Magnetic Whiteboard Sheet

Technical field

[1] The utility model relates to a writable whiteboard product, in particular to a magnetic whiteboard sheet.

Background technique

[2] The existing writable whiteboard products are generally hard-plate-shaped white writing boards supported by iron brackets, or hard-plate-like structures suspended by nails on the walls. Although the existing whiteboard products can realize the function of directly erasing the water-based pen multiple times, there are obvious defects in the structure: (1) The thickness is too thick, generally about 10 mm, which is relatively bulky and cannot be wound up, and is inconvenient to use. (2) Large space; (3) Replacement requires replacement, costly; (4)

In terms of production process, due to the need to process multi-layer structures, it is also necessary to produce frames and support frames, so the process is complicated and the manufacturing cost is high;

) Generally, it can only be used on one side, and the use period is short, resulting in an increase in the use cost.

Disclosure of invention

technical problem

[3] The purpose of the utility model is to overcome the shortcomings and deficiencies of the prior art, and to provide a

The magnetic whiteboard sheet is simple in structure, convenient to use, thin in thickness, and low in production cost.

Technical solution

[4] The object of the present invention is achieved by the following technical solutions:

The magnetic whiteboard sheet comprises a sheet layer, a magnetic coating layer, and a barrier layer capable of directly using an aqueous pen, the barrier layer is closely coupled to one side surface of the sheet layer, and the other side surface of the sheet layer is joined Magnetic coating.

[5] The material of the magnetic coating is a ferrite magnetic material, a rare earth magnetic material or an iron powder material.

[6] The outer surface of the magnetic coating layer may also be bonded with a protective layer, which protects the magnetic coating layer from being scratched or scratched.

[7] The sheet layer may be a plastic sheet, paper or synthetic paper; the material of the plastic sheet may be PET, PVC,

PE and so on. [8] The color of the barrier layer may be white or other monochromatic or colored, preferably white.

[9] The outer side of the magnetic coating layer may be connected with another sheet layer, and the other sheet layer is further connected with another impervious layer, that is, the two sides of the magnetic coating layer are combined with the two sheets, An anti-seepage layer is respectively connected to each of the two sheet layers to form a sandwich composite structure with bilateral symmetry. Both sides of the magnetic whiteboard sheet of the sandwich composite structure can be used for water-based pen erasing.

[10] The thickness of the magnetic whiteboard sheet is generally 0.02 to 0.50 mm.

[11] The manufacturing process of the magnetic whiteboard sheet is as follows: the anti-seepage layer may be bonded to the surface of the sheet layer by a coating and sticking process, or may be impervious to the surface of the sheet to form an anti-seepage layer; the magnetic coating layer It is bonded to the other surface of the sheet layer by a process such as roll coating, spray coating, casting, brushing or silk screen printing.

[12] The use of the magnetic whiteboard sheet is as follows: Cut the appropriate size of the magnetic whiteboard sheet according to the use, and attach it to any iron surface to form a hard whiteboard that can be written, and can be repeatedly erased with a water-based pen; The magnetic whiteboard sheet with composite structure can also be rotated on both sides to extend the service life.

Beneficial effect

[13] The utility model has the following advantages and effects compared with the prior art: (1)

) thin thickness; the thickness of this product is generally 0.30mm

, can be easily cut and used according to the area requirements, and can be stored in a roll, so it is very flexible and convenient to use; (2

The use of this product can greatly simplify the structure of the whiteboard, significantly reduce the production cost, and only need to replace the magnetic whiteboard sheet after replacement, so the use cost is also significantly reduced, and the economy is good. (3

This product can also be written on both sides or in rotation, with a relatively long service life and good durability.

DRAWINGS

[14] Figure 1 is a schematic view showing the structure of a magnetic whiteboard sheet of the present invention.

[15] FIG. 2 is a schematic view showing another structure of the magnetic whiteboard sheet of the present invention.

[16] FIG. 3 is a schematic view showing still another structure of the magnetic whiteboard sheet of the present invention.

Embodiments of the invention

[17] The present invention will be further described in detail below with reference to the embodiments and drawings, but the embodiments of the present invention are not limited thereto.

[18] Example 1 [1] FIG. 1 shows a specific structure of the present invention, which is represented by FIG.

It can be seen that the magnetic whiteboard sheet comprises a barrier layer 1 which can be directly wiped with an aqueous pen, the barrier layer 1 is bonded to one side surface of the sheet layer 2, and the other side surface of the sheet layer 2 is provided with magnetic properties. Coating 3

The magnetic coating 3 is closely bonded to the sheet layer 2

The other side of the surface. The material of the anti-seepage layer may be PP, UV

Varnish, resin coating, the sheet material may be PET, PVC, PE

, paper or synthetic paper. The material of the magnetic coating may be a ferrite magnetic material, a rare earth magnetic material or an iron powder material. The barrier layer 1 is bonded to the sheet layer 2 by a coating and pasting process 2

One side surface, the magnetic coating 3

The other side surface of the sheet layer 2 is joined by a process such as roll coating, spray coating, casting, brushing or silk screen printing.

[20] Example 2

[21] FIG. 2 shows another specific structure of the present invention, which is shown in FIG.

It can be seen that this embodiment is identical to the following embodiment 1: in the magnetic coating 3

The outer surface is further covered with a protective layer 4 to protect the magnetic coating 3

, making it less susceptible to being scratched or scratched.

[22] Example 3

[23] FIG. 3 shows still another specific structure of the present invention, which is shown in FIG.

It can be seen that this embodiment is the same as the following embodiment 1: the magnetic coating 3

The outer side of the outer layer may also be joined with another sheet layer 5, and the other sheet layer 5 is also connected with another impervious layer 6, that is, the two sides of the magnetic coating layer 3 are combined with the two sheet layers 2, 5, in two Each of the sheet layers 2, 5 is connected with an anti-seepage layer 1, 6

, forming a sandwich composite structure with bilateral symmetry. Both sides of the magnetic whiteboard sheet of the sandwich composite structure can be used for water-based pen erasing.

[24] The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited by the above embodiments, and any other changes that do not depart from the spirit and principles of the present invention, Modifications, substitutions, combinations, simplifications, and equivalent substitutions are all included in the scope of the present invention.

Claims

Claim

[1] a kind

a magnetic whiteboard sheet, comprising: a sheet layer, a magnetic coating layer, and a barrier layer, wherein the barrier layer is closely coupled to one surface of the sheet layer, and the other side surface of the sheet layer is bonded with a magnetic coating .

[2] according to claim 1

The magnetic whiteboard sheet is characterized in that the material of the magnetic coating layer is a ferrite magnetic material, a rare earth magnetic material or an iron powder material.

[3] according to claim 1

The magnetic whiteboard sheet is characterized in that: the outer surface of the magnetic coating is bonded with a protective layer

[4] according to claim 1

The magnetic whiteboard sheet is characterized in that the sheet layer is a plastic sheet, paper or synthetic paper.

[5] according to claim 1

The magnetic whiteboard sheet is characterized in that: the outer side of the magnetic coating layer is connected with another sheet layer, and the other sheet layer is further connected with another impervious layer, that is, the two sides of the magnetic coating layer The two flake layers are combined, and each of the two flake layers is connected with an anti-seepage layer to form a sandwich composite structure having bilateral symmetry.

[6] according to claim 1 or 5

The magnetic whiteboard sheet is characterized in that: the color of the impermeable layer is white or other single color or color.

[7] The magnetic whiteboard sheet according to claim 1 or 5, wherein the thickness is 0.02

~0.50mm.