Glass protection film and manufacturing method thereof

A technology of glass protective film and microbeads, which is applied to flat products, other household appliances, conveyor objects, etc., and can solve problems such as high breakage rate, reduced glass cleanliness, and dust generated by paper pads

Active Publication Date: 2011-11-09
SAMSUNG CORNING PRECISION MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If protective film and paper pad are used at the same time, additional handling and costs are incurred
In addition, paper pads generate dust, which reduces glass cleanliness
Moreover, for an LCD glass plate as thin as 1mm and with a large area, even if two people handle it carefully, it will inevitably result in a high breakage rate

Method used

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  • Glass protection film and manufacturing method thereof
  • Glass protection film and manufacturing method thereof
  • Glass protection film and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Using an extruder, the low-density polyethylene is melted and extruded into a pre-cured film that is slightly viscous. While the film is cured by pressing the film between a pair (two) of cooling rubber rollers, the microbeads are embedded on one surface of the film, thereby forming a non-sticky rough microbead surface. The microbeads are freely dropped on the cooling roller from the microbead supply device located above one of the two cooling rubber rollers, so that the microbeads are distributed thereon. The details are described below.

[0044] Substrate: low density polyethylene

[0045] Bead polymer: low density polyethylene

[0046] Melting point: 140°C

[0047] Film weight: 10g / m 2

[0048] Application environment: clean room

[0049] Diameter of cooling rubber roller: 80cm

[0050] Line speed: 90m / min

[0051] Particle size of polymer beads: 80μm~500μm

[0052] Bead distribution: 3g / m 2

[0053] The diameter of the bead release hole set at the bottom of the storage funnel: ...

Embodiment 2

[0058] The properties of the LCD glass protective film prepared in Example 1 are as follows:

[0059] i) The viscosity of the film: it is no different from the viscosity of a conventional protective film.

[0060] ii) Non-sticky properties: general properties: from light to 10g / m 2 The protruding microbeads of the membrane provide a non-sticky rough surface. When the glass plates are stacked, air is trapped between the microbeads protruding from the film, so that it can be ensured that the glass plates can be well separated from each other when they are transferred one by one.

[0061] iii) General characteristics: as thin as 10g / m 2 Its stable, non-sticky surface allows the treated film to be easily removed with a vacuum lifter. When the glass plates are stacked, the microbeads protruding from the membrane can act as elastic materials, helping to transport the glass plates more safely.

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Abstract

Disclosed are a glass protective film and a method for manufacturing the same. The glass protective film comprises a slightly adhesive surface and a rough microbead surface studded with a large number of microbeads. The microbeads are embedded in one side of the glass protective film to form the rough microbead surface while the glass protective film is molded and cured from a molten, slightly adhesive base material.

Description

Technical field [0001] The invention relates to an LCD (liquid crystal display) glass protective film and a manufacturing method thereof. More specifically, the present invention relates to the following LCD glass protective film, which has a slightly sticky inner surface and a non-sticky outer surface, which makes it unnecessary to use paper pads when stacking LCD glass plates and a method for manufacturing the same. Background technique [0002] Before fabricating thin film transistors on LCD glass, place the LCD glass in a clean room to keep it clean. Generally, in the transportation process from the LCD glass manufacturing site to the transistor manufacturing site, a protective film is used to protect the LCD glass and keep the LCD glass clean. Generally, paper pads are used as such glass protection devices. As an alternative, the protective film can be attached to either side of the glass plate, and when stacking the glass plates, the paper pad is placed between the protec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J5/18
CPCC08J5/18C08J2323/06B65G2249/02B65G49/069B29C70/64B29D7/01C08J2300/00C08L23/06C08L101/00C08L2203/16
Inventor 李秀永金男泰庾石凤
Owner SAMSUNG CORNING PRECISION MATERIALS CO LTD
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