CN205439459U - Blackboard membrane - Google Patents
Blackboard membrane Download PDFInfo
- Publication number
- CN205439459U CN205439459U CN201620148916.6U CN201620148916U CN205439459U CN 205439459 U CN205439459 U CN 205439459U CN 201620148916 U CN201620148916 U CN 201620148916U CN 205439459 U CN205439459 U CN 205439459U
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- China
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- layer
- blackboard
- black pvc
- pvc layer
- utility
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- Expired - Fee Related
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Abstract
The utility model belongs to the technical field of the film, especially, relate to a blackboard membrane, include black PVC layer, acrylic acid ester glue layer and leave type paper, a surface on black PVC layer is passed through acrylic acid ester glue layer with connect from type paper, another surface on black PVC layer has the impressed watermark layer. The blackboard membrane of above -mentioned structure have easily wipe, characteristics such as convenient to carry, safety ring guarantor, in addition, be provided with the impressed watermark layer on the surface on black PVC layer, when having the chalk of being convenient for to write increase frictional force with leave the chalk vestige for the writing of writing is more clear.
Description
Technical field
This utility model belongs to thin film technique field, particularly relates to a kind of blackboard film.
Background technology
Blackboard is the important carrier of knowledge dissemination, experienced by the developmental stage such as plank, cement plate, water mill glass plate, composite panel, has witnessed the development of educational undertaking, made distinctions won on the battlefield for mankind's knowledge dissemination and universal education.Nowadays, the complexity that the kind of blackboard also begins to become is various, and dividing from color has blackboard, blank；Divide from structure composition and have bracket white plate, blackboard movable up and down and magnet board；Divide from purposes and have blackboard for education, office plate, billboard, Graphic Panel etc..
The Chinese patent literature of Application No. 201210277820.6 reports a kind of Portable blackboard, including: pillar, blackboard, hanger bar, leg, blackboard is connected with pillar by hanger bar, posts bottom is provided with multiple leg, being provided with firm bar between leg and pillar, this blackboard is made up of canvas, and the surface of canvas scribbles one layer of black or cyan paint.
But, the Portable blackboard of above-mentioned report has the following disadvantages: though 1, this device detachable with assemble, but actually used in be unable to do without support, and the volume of support itself, weight are relatively big, and actual application is also unhandy to carry about.2, in the black of canvas surface smear or blackish green paint major part based on solvent-borne type phenolic aldehyde and nitro paint, with the addition of numerous volatile organic contents, life-time service has injury to human body simultaneously.3, along with the growth of the time of use, easily there is paint in this Portable blackboard, is difficult to the problem dried.
Utility model content
The purpose of this utility model is: for the deficiencies in the prior art, and provide a kind of easy wiping, easy to carry, the blackboard film of safety and environmental protection.
For achieving the above object, this utility model adopts the following technical scheme that
Blackboard film, including black PVC layer, acrylate glue layer and release paper, a surface of described black PVC layer is connected with described release paper by described acrylate glue layer, and another surface of described black PVC layer has embossed layer.
As a kind of improvement of blackboard film described in the utility model, described embossed layer is set to wavy shaped configuration or grid structure.
As a kind of improvement of blackboard film described in the utility model, the thickness of described embossed layer is 0.2～0.8mm.
As a kind of improvement of blackboard film described in the utility model, the thickness of described embossed layer is 0.3mm.
As a kind of improvement of blackboard film described in the utility model, the thickness of described black PVC layer is 0.07～0.7mm.
As a kind of improvement of blackboard film described in the utility model, the thickness of described black PVC layer is 0.2mm.
The beneficial effects of the utility model are: this utility model includes black PVC layer, acrylate glue layer and release paper, one surface of described black PVC layer is connected with described release paper by described acrylate glue layer, and another surface of described black PVC layer has embossed layer.The blackboard film of said structure has the features such as easy wiping, easy to carry, safety and environmental protection；It addition, the surface configuration at black PVC layer has embossed layer, there is when being easy to chalk-writing increasing friction force and leave chalk trace so that the writing write is apparent.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
Below in conjunction with detailed description of the invention and Figure of description, this utility model is described in further detail, but embodiment of the present utility model is not limited to this.
As shown in Figure 1, blackboard film, including black PVC layer 1, acrylate glue layer 2 and release paper 3, one surface of black PVC layer 1 is connected with release paper 3 by acrylate glue layer 2, acrylate in acrylate glue layer 2 belongs to polar material, and the general weak property resin of ink composition in white marks pen, the notes so can write easily are cleaned；It addition, another surface of black PVC layer 1 has embossed layer 4, there is when being easy to chalk-writing increasing friction force and leave chalk trace so that the writing write is apparent.
The blackboard film quality of said structure is relatively light, be convenient to carry, and has broken away from the constraint of traditional blackboard.
Preferably, embossed layer 4 is set to wavy shaped configuration or grid structure, and this embossed layer 4 is formed by machine die compacting.The thickness of embossed layer 4 is 0.2～0.8mm, and the thickness of embossed layer 4 is set to 0.3mm by present embodiment.
Preferably, the thickness of black PVC layer 1 is 0.07～0.7mm, and the thickness of black PVC layer 1 is set to 0.2mm by present embodiment.
The announcement of book and teaching according to the above description, above-mentioned embodiment can also be changed and revise by this utility model those skilled in the art.Therefore, this utility model is not limited to above-mentioned detailed description of the invention, and any conspicuously improved, replacement or modification that every those skilled in the art are done on the basis of this utility model belong to protection domain of the present utility model.Although additionally, employ some specific terms in this specification, but these terms are merely for convenience of description, this utility model is not constituted any restriction.
Claims (6)
1. blackboard film, it is characterised in that: including that black PVC layer, acrylate glue layer and release paper, a surface of described black PVC layer are connected with described release paper by described acrylate glue layer, another surface of described black PVC layer has embossed layer.
Blackboard film the most according to claim 1, it is characterised in that: described embossed layer is set to wavy shaped configuration or grid structure.
Blackboard film the most according to claim 2, it is characterised in that: the thickness of described embossed layer is 0.2～0.8mm.
Blackboard film the most according to claim 3, it is characterised in that: the thickness of described embossed layer is 0.3mm.
Blackboard film the most according to claim 1, it is characterised in that: the thickness of described black PVC layer is 0.07～0.7mm.
Blackboard film the most according to claim 1, it is characterised in that: the thickness of described black PVC layer is 0.2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620148916.6U CN205439459U (en) | 2016-02-25 | 2016-02-25 | Blackboard membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620148916.6U CN205439459U (en) | 2016-02-25 | 2016-02-25 | Blackboard membrane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205439459U true CN205439459U (en) | 2016-08-10 |
Family
ID=56604257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620148916.6U Expired - Fee Related CN205439459U (en) | 2016-02-25 | 2016-02-25 | Blackboard membrane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205439459U (en) |
-
2016
- 2016-02-25 CN CN201620148916.6U patent/CN205439459U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160810 Termination date: 20180225 |