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Packaging structure and packaging method

A packaging structure and packaging method technology, applied in the direction of transportation and packaging, packaging, wrapping paper, etc., can solve the problems of increasing packaging costs, polluting the display panel, poor adsorption, etc., and achieve effective positioning of packaging, low static effect, flatness high effect

Active Publication Date: 2019-06-04
QUANZHOU LICHANG PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, glassine paper coated with silicone oil can be used as the backing paper for the display panel. Since the glassine paper used as the backing paper is cut, paper dust will be generated during the cutting process, and some paper dust may remain on the glassine paper. The surface of the glassine paper will affect the cleanliness of the backing paper surface and reduce the sticking effect between the display panel and the glassine paper
At the same time, since the surface of the glassine paper is coated with silicone oil, when the display panel is placed on it, the silicone oil will be transferred to the display panel, thereby polluting the panel and affecting the transparency of the display panel
[0005] In order to solve the above-mentioned defects of glassine paper coated with silicone oil as the backing paper, there is a solution to use the existing synthetic paper as the backing paper. The synthetic paper will not produce paper dust during the cutting process, but the existing synthetic paper has poor adsorption , it is difficult to adsorb with the glass of the display panel and the electrostatic protective film. When the display panel is clamped between the synthetic paper and the electrostatic protective film, the display panel is easy to shift and the fixation is not firm
In order to increase the adsorption of the backing paper, for example, a transparent polypropylene film (BOPP) can be pasted on the synthetic paper, but the polypropylene film (BOPP) will produce low-molecular material precipitates, pollute the display panel, and affect the use of the display panel performance
After the synthetic paper is coated, due to the difference in film shrinkage between synthetic paper and polypropylene transparent film, the coated synthetic paper will bend, which will affect the wrapping effect of the display panel
In addition, sticking a film on synthetic paper increases packaging costs, and there is residue in the sticking solvent, which is not environmentally friendly

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0062] The embodiment of the present invention proposes a kind of co-extruded biaxially stretched synthetic paper, such as figure 2 As shown, it has a three-layer superimposed composite structure, including a first surface layer 1, a second surface layer 2 and a core layer 3, the core layer 3 is arranged between the first surface layer 1 and the second surface layer 2, and the first surface layer 1 is a bearing layer. The thickness of the first skin 1 is 5-30 microns, preferably 10-20 microns, and the second skin 2 may have the same thickness and composition as the first skin 1 . The surface roughness (Ra value) of the first surface layer 1 of the synthetic paper is less than 0.100 micron (measured according to ISO12085 "geometric product specification" by German Marr surface roughness measuring instrument (model: Marsurf M300C), preferably less than 0.050 micron . The density of the synthetic paper is 0.50-0.90g / cm3, preferably 0.60-0.70g / cm3.

[0063] The raw materials of...

Embodiment 2

[0071] In Example 1 of the present invention, a co-extruded biaxially oriented synthetic paper with a three-layer laminated composite structure is specifically described. In another embodiment of the present invention, as image 3 As shown, the co-extruded biaxially oriented synthetic paper has a five-layer superimposed composite structure, including the first surface layer 1, the first surface layer 4, the core layer 3, the second surface layer 5 and the second surface layer 2, and the first surface layer 1 is Bearer layer. The thickness of the first skin 1 is 5-30 microns, preferably 10-20 microns, and the second skin 2 may have the same thickness and composition as the first skin 1 . The surface roughness (Ra value) of the first surface layer 1 of the synthetic paper is less than 0.100 micron, preferably less than 0.050 micron. The density of the synthetic paper is 0.50-0.90g / cm3, preferably 0.60-0.70g / cm3.

[0072] Compared with the synthetic paper of Example 1, the fir...

Embodiment 3

[0075] refer to Figure 4 , in the manufacture method of above-mentioned co-extruded biaxially stretched synthetic paper of the present invention, comprise the following steps:

[0076] Extrusion step: the raw materials of each layer in the multi-layer structure of synthetic paper are uniformly stirred at room temperature, and the stirred raw materials of each layer are respectively extruded by their respective extruders at a working temperature of 200-260 ° C according to the multi-layer The laminated structure is melt-extruded into a plurality of flow channels stacked in the T-shaped die, and co-extruded to form a composition laminate, which flows out through the T-shaped die.

[0077] For the synthetic paper of manufacturing example 1, the T-shaped module includes three runners arranged in layers, the raw material of the first surface layer 1 after stirring enters the upper runner of the T-shaped die head, and the raw material of the second surface layer 2 after stirring en...

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Abstract

The invention relates to a packaging structure and a packaging method. The packaging structure comprises packaging bottom paper, a packaged object and an electrostatic protection film, wherein the packaged object is clamped between the package bottom paper and the electrostatic protection film; the portion, beyond the edge of the packaged object, of the electrostatic protection film makes contactwith the package bottom paper in an adhesion mode; and the surface roughness of the contact portion of the packaging bottom paper and the electrostatic protection film is less than 0.100 micron. According to the packaging structure and the packaging method in the embodiment, the packaging bottom paper has a low electrostatic effect, the packaging bottom paper has good adsorptivity to the electrostatic protection film, and the flatness is high. By means of biaxially-stretched synthetic paper and the electrostatic protection film, the product is effectively positioned and packaged, and the electrostatic protection film can be easily uncovered from the packaging bottom paper when the product is needed for use.

Description

technical field [0001] The invention belongs to the technical field of polymer films, and in particular relates to a packaging structure and a packaging method. Background technique [0002] With the increasing development of flat panel display technology, various flat panel display devices appear on the market. The top layer of the display screen of the flat panel display device is a transparent glass panel or a panel made of other materials, and the display panel is in the shape of a sheet with a certain hardness. The display panel of a smart phone is a typical display panel. Generally, the display panel of a smart phone is made by cutting a large-size panel into multiple small-size panels of a specific size, and then the cut display panel is Shipped to the assembly section of the display production line and installed on top of the display. [0003] In the prior art, the cutting of large-size panels is a continuous process, and the cut display panel 1001 is generally not...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65D65/40B65H37/04
Inventor 林小松吕达民
Owner QUANZHOU LICHANG PLASTIC
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