CN107245227B - Transparent projection film, projection screen comprising same and preparation method of transparent projection film - Google Patents
Transparent projection film, projection screen comprising same and preparation method of transparent projection film Download PDFInfo
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- CN107245227B CN107245227B CN201710472268.9A CN201710472268A CN107245227B CN 107245227 B CN107245227 B CN 107245227B CN 201710472268 A CN201710472268 A CN 201710472268A CN 107245227 B CN107245227 B CN 107245227B
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/22—Expanded, porous or hollow particles
- C08K7/24—Expanded, porous or hollow particles inorganic
- C08K7/26—Silicon- containing compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/54—Accessories
- G03B21/56—Projection screens
- G03B21/60—Projection screens characterised by the nature of the surface
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/10—Homopolymers or copolymers of propene
- C08J2323/12—Polypropene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/10—Transparent films; Clear coatings; Transparent materials
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/16—Applications used for films
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- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Materials Engineering (AREA)
- Optical Elements Other Than Lenses (AREA)
- Overhead Projectors And Projection Screens (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Abstract
The invention discloses a transparent projection film, a projection screen comprising the same and a preparation method of the transparent projection film. Wherein, this transparent projection film includes: at least one layer of transparent film containing hollow nano microsphere. By applying the technical scheme of the invention, the transparent projection film comprises at least one layer of transparent film containing the hollow nano microspheres, and the hollow nano microspheres added in the transparent film containing the hollow nano microspheres have the characteristics of nano scale and hollow low refractive index, so that the film can have better transparency.
Description
Technical Field
The invention relates to the technical field of composite materials, in particular to a transparent projection film, a projection screen comprising the transparent projection film and a preparation method of the transparent projection film.
Background
Generally, a projection screen is an opaque screen, and white reflection or gray reflection is used to present projection contrast, so that a viewer can see a projected image. Recently, transparent projection films have been developed, and companies capable of producing transparent projection films, such as mitsubishi paper corporation, have kept their technology secret.
Non-transparent projection screens have certain limitations for office or home decoration, and in some novel decoration designs, it is desirable to use a transparent film for projection to improve the flexibility of the design. For transparent projection films, the addition of diffusing particles is generally chosen to achieve the projection effect, but the transparency of the film is sacrificed while improving the resolution of the projection. When the nanoparticles are used as a projection medium, the particles are difficult to disperse, and the preparation process is complicated.
Disclosure of Invention
The invention aims to provide a transparent projection film, a projection screen comprising the same and a preparation method of the transparent projection film, so as to improve the performance index of the transparent projection film or simplify the preparation process.
To achieve the above object, according to one aspect of the present invention, there is provided a transparent projection film. The transparent projection film includes: at least one layer of transparent film containing hollow nano microsphere.
Furthermore, the particle size of the hollow nano-microsphere is 0.5-50 nm, preferably 5-10 nm.
Further, the hollow nano-microspheres are silica nano-hollow spheres.
Further, the material of the transparent projection film is PET, PP, PC, PE, or COP, preferably PET.
Furthermore, the thickness of the transparent projection film is 50-5000 μm, preferably 250-300 μm.
Furthermore, the hollow nano microspheres in the transparent film containing the hollow nano microspheres account for 5-30% of the weight of the transparent film containing the hollow nano microspheres, and preferably account for 10-20%.
Further, the projection surface of the transparent projection film has surface embossments.
According to another aspect of the present invention, a projection screen is provided. The projection screen includes any of the transparent projection films described above.
According to still another aspect of the present invention, there is provided a method for preparing the above transparent projection film. The preparation method comprises the following steps: the transparent projection film is prepared by adopting a multilayer co-extrusion one-step forming process, and comprises at least one layer of transparent film containing hollow nano microspheres.
Furthermore, the raw material for preparing the transparent film containing the hollow nano microspheres is a drawable plastic slice containing the dispersed hollow nano microspheres.
Furthermore, the raw material for preparing the transparent film without the hollow nano microspheres is the drawable plastic slice without the hollow nano microspheres.
Further, still include: embossing is carried out on the projection surface of the transparent projection film by a pressing wheel in the extrusion process.
By applying the technical scheme of the invention, the transparent projection film comprises at least one layer of transparent film containing the hollow nano microspheres, and the hollow nano microspheres added in the transparent film containing the hollow nano microspheres have the characteristics of nano scale and hollow low refractive index, so that the film can have better transparency.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 shows a schematic structural diagram of a transparent projection film according to an exemplary embodiment of the present invention; and
fig. 2 shows a schematic view of a structure of a transparent projection film according to another exemplary embodiment of the present invention.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
According to an exemplary embodiment of the present invention, a transparent projection film is provided. The transparent projection film comprises at least one layer of transparent film containing hollow nano microspheres.
By applying the technical scheme of the invention, the transparent projection film comprises at least one layer of transparent film containing the hollow nano microspheres, and the hollow nano microspheres added in the transparent film containing the hollow nano microspheres have the characteristics of nano scale and hollow low refractive index, so that the film can have better transparency. According to an exemplary embodiment of the present invention, the transparent projection film may further include at least one transparent thin film layer not containing hollow nano-microspheres. Preferably, the transparent film containing the hollow nano microspheres and the transparent film without the hollow nano microspheres are alternately stacked. For example: the film shown in fig. 1 comprises a first transparent film 10 without hollow nanospheres, a first transparent film 20 with hollow nanospheres and a second transparent film 30 without hollow nanospheres, which are arranged in sequence; as shown in fig. 2, the film includes a first transparent film 10 without hollow nanospheres, a first transparent film 20 with hollow nanospheres, a second transparent film 30 without hollow nanospheres, a second transparent film 40 with hollow nanospheres, and a third transparent film 50 without hollow nanospheres, which are sequentially disposed. The transparent film containing the hollow nano microspheres and the transparent film without the hollow nano microspheres are alternately stacked, so that the cost can be reduced.
According to a typical embodiment of the present invention, the hollow nano-microsphere is a silica nano-hollow sphere, and the particle size of the hollow nano-microsphere is 0.5 to 50nm, preferably 5 to 10 nm.
The material of the transparent projection film may be PET, PP, PC, PE, COP, or the like, and PET is preferable.
According to an exemplary embodiment of the present invention, the thickness of the transparent projection film is 50 to 5000 μm, preferably 250 to 300 μm.
In accordance with an exemplary embodiment of the present invention, the transparent projection film is a three-layer coextrusion with the skin layers being relatively thin, each comprising 1/5 total thickness.
Preferably, the hollow nano microspheres in the transparent film containing the hollow nano microspheres account for 5-30% of the weight of the transparent film containing the hollow nano microspheres, the proportion content of the hollow nano microspheres is in the range, and the transparency of the transparent projection film is good; more preferably 10 to 20%.
Preferably, the projection surface of the transparent projection film has surface embossments to reduce specular reflection and improve visibility.
According to an exemplary embodiment of the present invention, a projection screen is provided. The projection screen includes any of the transparent projection films described above.
According to an exemplary embodiment of the present invention, there is provided a method for preparing a transparent projection film, including the steps of: the transparent projection film is prepared by adopting a multilayer co-extrusion one-step forming process, and comprises at least one layer of transparent film containing hollow nano microspheres. Preferably, the transparent projection film further comprises at least one layer of transparent thin film that does not contain hollow nanospheres.
In the multilayer co-extrusion one-step forming process, the number of layers and the thickness of each layer of multilayer co-extrusion can be easily controlled through the design of an extrusion flow channel, the process is simple, and the industrial production is convenient.
According to a typical embodiment of the present invention, the raw material for preparing the transparent film containing the hollow nano-microspheres is a drawable plastic slice containing the dispersed hollow nano-microspheres. The drawable plastic slice containing the dispersed hollow nano-microspheres can be a commercial product, thus providing the simplicity of industrial operation. Of course, the ingredient production can also be carried out according to the actual situation.
Similarly, the raw material for preparing the transparent film without the hollow nano microspheres is the drawable plastic slice without the hollow nano microspheres, and the transparent film can also be a commercial product or prepared according to the actual situation.
According to an exemplary embodiment of the present invention, further comprising: embossing is impressed in the extrusion process on the upper surface of the transparent projection film by a pressing wheel.
The following examples are provided to further illustrate the advantageous effects of the present invention.
The transparent projection films in the following examples were prepared by the above-described method of the present invention.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (14)
1. A transparent projection film, comprising: at least one layer of transparent film containing hollow nano microspheres, wherein the particle size of the hollow nano microspheres is 0.5-50 nm.
2. The transparent projection film of claim 1, wherein the hollow nanospheres have a particle size of 5-10 nm.
3. The transparent projection film of claim 2 wherein the hollow nanospheres are silica nano hollow spheres.
4. The transparent projection film of claim 1, wherein the transparent projection film is made of PET, PP, PC, PE or COP.
5. The transparent projection film of claim 4, wherein the transparent projection film is made of PET.
6. The transparent projection film of claim 1, wherein the transparent projection film has a thickness of 50 to 5000 μm.
7. The transparent projection film of claim 6, wherein the transparent projection film has a thickness of 250 to 300 μm.
8. The transparent projection film of claim 1, wherein the hollow nanospheres comprise 5% to 30% of the weight of the transparent film comprising hollow nanospheres.
9. The transparent projection film of claim 8, wherein the hollow nanospheres comprise 10-20% of the weight of the transparent film comprising hollow nanospheres.
10. The transparent projection film of claim 1 wherein the projection surface of the transparent projection film has surface embossing.
11. A projection screen comprising the transparent projection film of any one of claims 1 to 10.
12. A method of producing a transparent projection film according to any one of claims 1 to 10, comprising the steps of: the transparent projection film is prepared by adopting a multilayer co-extrusion one-step forming process, and comprises at least one layer of transparent film containing hollow nano microspheres.
13. The method according to claim 12, wherein the transparent film containing the hollow nanospheres is prepared from a drawable plastic chip containing the dispersed hollow nanospheres.
14. The method of manufacturing according to claim 12, further comprising: and embossing the projection surface of the transparent projection film by a pressing wheel in the extrusion process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710472268.9A CN107245227B (en) | 2017-06-20 | 2017-06-20 | Transparent projection film, projection screen comprising same and preparation method of transparent projection film |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710472268.9A CN107245227B (en) | 2017-06-20 | 2017-06-20 | Transparent projection film, projection screen comprising same and preparation method of transparent projection film |
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| Publication Number | Publication Date |
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| CN107245227A CN107245227A (en) | 2017-10-13 |
| CN107245227B true CN107245227B (en) | 2020-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710472268.9A Active CN107245227B (en) | 2017-06-20 | 2017-06-20 | Transparent projection film, projection screen comprising same and preparation method of transparent projection film |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108391118B (en) * | 2018-03-21 | 2020-11-06 | 惠州学院 | Display system for realizing 3D image based on projection mode |
| CN111635674A (en) * | 2019-05-17 | 2020-09-08 | 亚科维亚(福建)科技有限公司 | Transparent projection coating and orthographic projection screen |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1795399A (en) * | 2003-05-22 | 2006-06-28 | 伊斯曼柯达公司 | Optical element with nanoparticles |
| CN201654436U (en) * | 2009-10-15 | 2010-11-24 | 亿立银幕科技股份有限公司 | Projection screen |
| WO2016143566A1 (en) * | 2015-03-06 | 2016-09-15 | Ｊｘエネルギー株式会社 | See-through laminate, transparent screen provided with same, and image projection device provided with same |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070237938A1 (en) * | 2006-03-31 | 2007-10-11 | 3M Innovative Properties Company | Reinforced Optical Films |
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2017
- 2017-06-20 CN CN201710472268.9A patent/CN107245227B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1795399A (en) * | 2003-05-22 | 2006-06-28 | 伊斯曼柯达公司 | Optical element with nanoparticles |
| CN201654436U (en) * | 2009-10-15 | 2010-11-24 | 亿立银幕科技股份有限公司 | Projection screen |
| WO2016143566A1 (en) * | 2015-03-06 | 2016-09-15 | Ｊｘエネルギー株式会社 | See-through laminate, transparent screen provided with same, and image projection device provided with same |
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| Publication number | Publication date |
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| CN107245227A (en) | 2017-10-13 |
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