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Self-cleaning nano-coating protective film and preparation method thereof

A nano-coating and self-cleaning technology, which is applied in the direction of coatings, film/sheet adhesives, adhesives, etc., can solve the problems of static electricity accumulation, insufficient adhesion, and poor anti-pollution performance of the protective film, and achieve production Low cost, good anti-sand and dust, good effect

Inactive Publication Date: 2015-05-27
NALI OPTICAL MATERIAL DONGGUAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing technology for manufacturing optical films mostly uses PET substrates, and then coats a layer of hardened coating on its surface. This coating is mostly acrylic resin materials, and acrylic resin materials need ultraviolet light to be cured. The prepared optical films have The disadvantages are: 1. The adhesion between the PET substrate and the acrylic resin material is often not strong enough, and it has a lot to do with the surface treatment of the PET substrate.
2. UV curing requires the support of ultraviolet light equipment, and the commonly used high-pressure mercury lamp not only has a low utilization rate, but also emits only 30% of the output power of ultraviolet light, and is easy to cause UV pollution. Protective equipment must be used when using
4. The prepared protective film is easy to accumulate static electricity and has poor anti-pollution performance

Method used

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  • Self-cleaning nano-coating protective film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] A method for preparing a self-cleaning nano-coating protective film includes the following processing steps:

[0047] The first step is to prepare nano coatings with self-cleaning function;

[0048] The second step is to use a micro-concave anilox roller to coat the above-mentioned nano-coating on the PET substrate. The number of lines of the micro-concave anilox roller is 140 LPI and the coating volume is 90 square meters / L; The angle is 30 degrees; the coating line speed of the micro-concave anilox roll is 10m / min;

[0049] The third step is to adopt the thermal curing method of oven heating, the heating temperature is 50 ℃, and the heating time is 3 minutes, so that a layer of nano film is formed on the PET substrate;

[0050] The fourth step is to coat the adhesive on the other surface of the PET substrate, heat and cure in an oven, the baking temperature of the oven is 130 ℃, the baking time is 3 minutes, and then the PET peeling layer is pasted on the adhesive layer . T...

Embodiment 2

[0062] A method for preparing a self-cleaning nano-coating protective film includes the following processing steps:

[0063] The first step is to prepare nano coatings with self-cleaning function;

[0064] The second step is to use a micro-concave anilox roll to coat the above-mentioned nano-coating on the PET substrate. The number of lines of the micro-concave anilox roll is 200 LPI, and the coating volume is 100 square meters / L; The angle is 30 degrees; the coating line speed of the micro-concave anilox roll is 10m / min;

[0065] The third step is to adopt the thermal curing method of oven heating, the heating temperature is 55℃, and the heating time is 2.5min, so that a layer of nano film is formed on the PET substrate;

[0066] The fourth step is to coat the adhesive on the other surface of the PET substrate, heat and cure it in an oven, the baking temperature of the oven is 150℃, and the baking time is 2.5min, then the PET peeling layer is pasted on the adhesive layer on. The ad...

Embodiment 3

[0078] A method for preparing a self-cleaning nano-coating protective film includes the following processing steps:

[0079] The first step is to prepare nano coatings with self-cleaning function;

[0080] The second step is to use a micro-concave anilox roller to coat the above-mentioned nano coating on the PET substrate. The number of lines of the micro-concave anilox roller is 350LPI, and the coating volume is 110㎡ / L; The angle is 30 degrees; the coating line speed of the micro-concave anilox roll is 15m / min;

[0081] The third step is to adopt the thermal curing method of oven heating, the heating temperature is 60 ℃, and the heating time is 2 min, so that a layer of nano film is formed on the PET substrate;

[0082] The fourth step is to coat the adhesive on the other surface of the PET substrate, heat and cure in an oven, the baking temperature of the oven is 160℃, and the baking time is 2min, and then stick the PET peeling layer on the adhesive layer . The adhesive is a silic...

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Abstract

The invention relates to the technical field of optical protective films, and in particular relates to a self-cleaning nano-coating protective film and a preparation method thereof. The preparation method comprises the following processing steps: I, preparing a nano-paint having a self-cleaning function; II, coating a PET (Polyethylene Terephthalate) substrate with the nano-paint by using a micro-concave anilox roller; III, forming a layer of nanofilm on the PET substrate by adopting a heat curing way; and IV, coating silica gel and sticking a stripping layer. The PET substrate is coated with the nano-paint having the self-cleaning function by using the micro-concave anilox roller, and the PET substrate is dried and cured in a drying oven, so that the nano-coating having a self-cleaning function is formed on the surface of the PET substrate. The self-cleaning nano-coating protective film can be used by peeling the PET stripping layer off and sticking an adhesive layer to a screen. The self-cleaning nano-coating protective film is convenient to use and easy to operate.

Description

technical field [0001] The invention relates to the technical field of optical protective films, in particular to a self-cleaning nano coating protective film and a preparation method thereof. Background technique [0002] With the rapid development of electronic product technology, more people have electronic products. Protective films can not only beautify electronic products, but also prolong the life of electronic products. Therefore, more consumers are willing to use protective films. [0003] With the development of smart mobile devices, optical film manufacturing technology has also been greatly improved. The existing technology for manufacturing optical films mostly uses PET substrates, and then coats a layer of hardened coating on its surface. This coating is mostly acrylic resin materials, and acrylic resin materials need ultraviolet light to be cured. The prepared optical films have The disadvantages are: 1. The adhesion between the PET substrate and the acrylic ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J7/02C08J7/06C09D1/00C09D7/12
Inventor 陈克勇朱文峰杨忠芝齐东东虞礼森
Owner NALI OPTICAL MATERIAL DONGGUAN
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