CN216507612U

CN216507612U - Whiteboard surface with erasable surface writing

Info

Publication number: CN216507612U
Application number: CN202122475760.6U
Authority: CN
Inventors: 李云波; 童李洋
Original assignee: Yangzhou Zhonghe Tongsheng Packing Material Co ltd
Current assignee: Yangzhou Zhonghe Tongsheng Packing Material Co ltd
Priority date: 2021-10-14
Filing date: 2021-10-14
Publication date: 2022-05-13
Anticipated expiration: 2031-10-14

Abstract

The utility model discloses a whiteboard surface with erasable surface writing. This whiteboard face that erasable is write on surface includes the density board, and the density board top is provided with compound PVC board, and compound PVC board top is provided with writes and to wipe off the membrane, writes to wipe off the membrane and include the polypropylene thin layer, and the top coating on polypropylene thin layer has the enhancement layer, and polypropylene thin layer bottom coating has the AC agent, and the AC agent bottom complex has hot melt adhesive layer, and hot melt adhesive layer is used for bonding compound PVC board. The utility model solves the problems of high manufacturing cost and processing difficulty and short service life caused by poor long-time use effect of the conventional whiteboard.

Description

Whiteboard surface with erasable surface writing

Technical Field

The utility model relates to the technical field of packaging, in particular to a whiteboard panel with erasable surface writing.

Background

In the whiteboard with the structure disclosed in the prior publication No. CN201471958U, the following problems exist: 1. the hardened layer has high manufacturing cost and high processing difficulty; 2 after the whiteboard is used for a period of time, the board surface is easy to have pen marks or dust accumulation, thereby influencing the use effect and the service life of the whiteboard.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a whiteboard surface erasable by writing on the surface, which can reduce the manufacturing cost and the processing difficulty of a whiteboard, improve the using effect of the whiteboard and prolong the service life of the whiteboard, aiming at the defects in the prior art.

In order to achieve the purpose, the technical scheme adopted by the whiteboard surface with erasable surface writing is as follows:

the utility model provides a whiteboard face that erasable is write on surface, includes the density board, and the density board top is provided with compound PVC board, and compound PVC board top is provided with writes and can erase the membrane, writes and can erase the membrane and include the polypropylene thin layer, and the top coating on polypropylene thin layer has the enhancement layer, and polypropylene thin layer bottom coating has the AC agent, and the AC agent bottom complex has hot melt adhesive layer, and hot melt adhesive layer is used for bonding compound PVC board.

Preferably, the reinforcing layer is made of UV acrylic resin.

Preferably, the AC agent is polyethyleneimine.

Preferably, the hot melt adhesive layer is EVA resin.

Compared with the prior art, the utility model has the following advantages:

the writing erasable film replaces the prior art to process a hardening layer on the PVC board, so that the manufacturing cost and the processing difficulty are reduced, the appearance of the whiteboard is not influenced, the whiteboard pen can be used for smoothly and clearly writing on the surface of the film, the film can be easily erased, and the phenomenon of pen marks or dust accumulation can not occur after long-time use.

Drawings

FIG. 1 is a schematic illustration of a whiteboard face having a surface that is erasable by writing;

FIG. 2 is a schematic diagram of a writing erasable film structure;

the composite PVC board comprises a density board 1, a composite PVC board 2, a writing erasable film 3, a polypropylene film layer 31, a reinforcing layer 32, an AC agent 33 and a hot melt adhesive layer 34.

Detailed Description

The present invention is further illustrated by the following description in conjunction with the accompanying drawings, which are to be construed as merely illustrative and not limitative of the remainder of the disclosure, and on reading the disclosure, various equivalent modifications thereof will become apparent to those skilled in the art and fall within the limits of the appended claims.

As shown in fig. 1-2, a whiteboard panel surface with erasable surface writing function comprises a density board 1, a composite PVC board 2 covered on the top of the density board, a writing erasable film 3 arranged on the top of the composite PVC board, the writing erasable film comprising a polypropylene film layer 31, a top coating reinforcing layer 32 of the polypropylene film layer, a UV acrylic resin as the reinforcing layer, an AC agent 33 coated on the bottom of the polypropylene film layer, a polyethyleneimine as the AC agent, a composite hot melt adhesive layer 34 on the bottom of the polyethyleneimine, an EVA resin as the hot melt adhesive layer, and the EVA resin for bonding the composite PVC board.

The specific working process and principle of the whiteboard surface with erasable surface writing are as follows: the common water-based white board pen can be directly used for writing on the UV acrylic resin layer, and white board pens with different colors can also be used for writing, and after writing, the white board pens are wiped by using a board wiping flannelette. According to the utility model, the polypropylene film layer and the UV acrylic resin layer are directly bonded to the composite PVC board through the EVA resin, so that a hardened layer processed on the PVC board in the prior art is replaced, the manufacturing cost and the processing difficulty are reduced, the appearance of the whiteboard is not influenced, the whiteboard pen can be used for smoothly and clearly writing on the surface of the film, the whiteboard pen can be easily erased, and the pen mark or dust accumulation phenomenon can not occur after long-time use.

Claims

1. A whiteboard surface that surface writing is erasable, its characterized in that: including the density board, the density board top is provided with compound PVC board, and compound PVC board top is provided with writes and can erase the membrane, writes and can erase the membrane and include the polypropylene thin layer, and the top coating on polypropylene thin layer has the enhancement layer, and the coating in polypropylene thin layer bottom has the AC agent, and the AC agent bottom is compound has hot melt adhesive layer, and hot melt adhesive layer is used for bonding compound PVC board.

2. The surface-writing erasable whiteboard face of claim 1, wherein: the reinforced layer is made of UV acrylic resin.

3. The surface-writing erasable whiteboard face of claim 1, wherein: the AC agent is polyethyleneimine.

4. The surface-writing erasable whiteboard face of claim 1, wherein: the hot melt adhesive layer is EVA resin.