CN114995043B - Composite membrane material based on circular array and blue light absorption technology and preparation method thereof - Google Patents
Composite membrane material based on circular array and blue light absorption technology and preparation method thereof Download PDFInfo
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- CN114995043B CN114995043B CN202210733245.XA CN202210733245A CN114995043B CN 114995043 B CN114995043 B CN 114995043B CN 202210733245 A CN202210733245 A CN 202210733245A CN 114995043 B CN114995043 B CN 114995043B
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- 238000005516 engineering process Methods 0.000 title claims abstract description 40
- 239000000463 material Substances 0.000 title claims abstract description 24
- 230000031700 light absorption Effects 0.000 title claims abstract description 19
- 239000002131 composite material Substances 0.000 title claims abstract description 16
- 239000012528 membrane Substances 0.000 title claims abstract description 14
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 230000003287 optical effect Effects 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims abstract description 19
- 239000011325 microbead Substances 0.000 claims abstract description 15
- 238000001259 photo etching Methods 0.000 claims abstract description 12
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 10
- 230000008569 process Effects 0.000 claims abstract description 10
- 229910052709 silver Inorganic materials 0.000 claims abstract description 10
- 239000004332 silver Substances 0.000 claims abstract description 10
- 238000004519 manufacturing process Methods 0.000 claims description 16
- 238000003825 pressing Methods 0.000 claims description 10
- 239000002245 particle Substances 0.000 claims description 9
- 239000002994 raw material Substances 0.000 claims description 9
- 230000002745 absorbent Effects 0.000 claims description 7
- 239000002250 absorbent Substances 0.000 claims description 7
- 238000013329 compounding Methods 0.000 claims description 6
- 238000002844 melting Methods 0.000 claims description 6
- 230000008018 melting Effects 0.000 claims description 6
- 230000009467 reduction Effects 0.000 claims description 6
- 238000005096 rolling process Methods 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims description 4
- 238000010023 transfer printing Methods 0.000 claims description 4
- 239000011127 biaxially oriented polypropylene Substances 0.000 claims description 3
- 229920006378 biaxially oriented polypropylene Polymers 0.000 claims description 3
- 238000004364 calculation method Methods 0.000 claims description 3
- 238000003490 calendering Methods 0.000 claims description 3
- 238000004049 embossing Methods 0.000 claims description 3
- 230000009466 transformation Effects 0.000 claims description 3
- 230000037303 wrinkles Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 9
- 230000032683 aging Effects 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 239000003317 industrial substance Substances 0.000 abstract description 2
- 238000000206 photolithography Methods 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 39
- 239000011248 coating agent Substances 0.000 description 6
- 238000000576 coating method Methods 0.000 description 6
- 239000006096 absorbing agent Substances 0.000 description 4
- 238000011282 treatment Methods 0.000 description 3
- 238000003491 array Methods 0.000 description 2
- 238000001723 curing Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007731 hot pressing Methods 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 238000007614 solvation Methods 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 239000011358 absorbing material Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000013006 addition curing Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000013007 heat curing Methods 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000010147 laser engraving Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000016 photochemical curing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- 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
- G03B21/602—Lenticular screens
-
- 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
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/0002—Lithographic processes using patterning methods other than those involving the exposure to radiation, e.g. by stamping
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Overhead Projectors And Projection Screens (AREA)
Abstract
The invention discloses a composite membrane based on a circular array and a blue light absorption technology. The preparation method comprises the following steps: 1, preparing a round microbead optical layer; 2, preparing a diffuse reflection supporting layer; 3, preparing a silver reflecting layer; and 4, preparing a composite membrane material. The invention combines the photoetching technology, the industrial chemical technology, the industrial engineering application technology and the physical optical application technology to obtain the following advantages: 1. combining a photolithography technique with a blue light absorption technique; 2. the solvent-free composite process improves the strength, the flatness, the aging resistance and the environmental protection effect of the material, and further obtains the technical effect that the obtained film material can reach the food-grade application standard. The obtained film material can achieve the technical effect of food-grade application standard.
Description
Technical Field
The invention relates to the technical field of optical projection, in particular to a composite membrane material based on a circular array and a blue light absorption technology and a preparation method thereof.
Background
Because of the popularity of projection technology, projection screens and manufacturing methods become important influencing factors that influence the projection effect, related practitioners have studied and improved projection screen technology.
As in prior document 1 (high contrast projection screen [ P ]. CN207867207U, 2018-09-14.), chen Mingli et al solve the problem of double imaging at the time of short-focus projection by forming a plurality of prism structures on the first surface of the base layer and filling light absorbing particles in the prism structures. The technical scheme does not relate to a preparation method of the basal layer and the reflecting layer, namely the screen.
In the prior document 2, (an anti-light curtain [ P ]. CN209231704U, 2019-08-09.) Zhou Yongna adopts a saw tooth structure as well, but only one coating treatment is needed by introducing a light absorption material and a light reflection coating, so that the technical problem that the conventional technology needs to carry out two coating treatments is solved, the production efficiency and the yield are improved, and the production cost is further reduced. It is confirmed by this document that in the field of curtain production, the coating treatment technique in the production of curtains has a direct and significant impact on product performance and cost. In addition, two key technical details of the technical scheme are as follows: 1. the preparation method of the optical prism array comprises the steps of stamping and solidifying through UV resin, and particularly can be photo-solidification or hot-pressing cooling; 2. the light absorbing material is black particles and has the function of absorbing the ambient light entering the prism surface roughened microstructure as a second light absorbing mechanism to further strengthen the light absorbing effect.
In addition, in the prior art 3 (ultra-short Jiao Kangguang projection curtain and a preparation method thereof [ P ]. CN112099302B, 2022-05-17.), cheng Zhixiu et al adopts a method that black-white alternate stripes are arranged on the surface layer of the curtain, and then the surface layer and an optical prism layer are only required to be attached, so that the effects of absorbing ambient light and reflecting projection light can be achieved, and the problem of providing accurate coating of a micro-convex strip structure in a micrometer size when a light absorption layer and a reflecting layer are directly formed on the optical prism structure by means of coating, spraying, sputtering and the like is solved. The prism layer is formed of an opaque material and is molded by a curing method combining ultraviolet curing, hot pressing, photo-curing and heat curing or addition curing, which are similar to those of the conventional document 2.
The existing documents all have the same technical problems: the prism layers are triangular prism arrays. The reason for this is that the conventional prism layer preparation method is limited. According to the studies of the inventors, conventional methods cannot realize complex morphologies such as a circle or a circle when performing finer designs. And the refraction and reflection of light rays can be finely regulated and controlled by different arrays, so that the imaging effect of the curtain is finally improved.
Disclosure of Invention
The invention aims to provide a composite membrane material based on a circular array and a blue light absorption technology and a preparation method thereof.
The basic principle of the invention is that the preparation of the projection screen film material with high accuracy and specific graph is realized by combining drawing software, photoetching machine technology, casting film drawing technology and laser engraving technology; in addition, aiming at the problem that the application scene of the projection technology is a relative darkroom environment and the damage of blue light to human eyes is serious, a blue light absorption technology is introduced to solve the problem. Wherein, the introduction of blue light absorption technology is accompanied by new technical problems: and the multi-angle consistency during the absorption and color reduction of blue light and the refraction of other light rays.
According to the research of the inventor, when the light source absorber is added to realize the blue light absorption technology, compared with the conventional triangular prism array, the circular shape with the highly uniform array arrangement can effectively solve the problem of multi-angle uniformity in light refraction, and simultaneously, the problem of color reduction degree is solved to the greatest extent.
In order to achieve the aim of the invention, the invention adopts the following technical scheme:
A composite membrane based on a circular array and a blue light absorption technology is characterized in that a curtain consists of a circular microbead optical layer, a diffuse reflection supporting layer and a silver reflection layer, and the circular microbead optical layer, the diffuse reflection supporting layer and the silver reflection layer are formed in a composite mode from top to bottom through an elastic pressing process of an industrial rolling wheel.
A preparation method of a composite membrane based on a circular array and a blue light absorption technology comprises the following steps:
Step 1, preparing a round micro-bead optical layer, wherein the surface of the round micro-bead optical layer comprises a round array, firstly, designing and manufacturing a graph with a nanoscale round array through professional drawing software, namely, a graph for short, then, guiding the graph into a photoetching machine through an algorithm, engraving a needed round array on a photoetching offset plate, and finally, carrying out batch seamless copying on a UV (ultraviolet) mould pressing system in a mode that the photoetching offset plate is taken as a master plate through a UV transfer printing technology;
when the circular array is designed in the step 1, the size and radian of the circular array are regulated according to theoretical calculation, so that multi-angle consistency is maintained when light refraction is realized;
the base material of the round micro-bead optical layer in the step 1 is PET or BOPP material;
Step 2, preparing a diffuse reflection supporting layer, adopting a calendaring technology, and adopting a specific cast film production process, namely, firstly spraying a film on raw materials through a film nozzle after high-temperature melting, longitudinally stretching and transversely stretching to obtain a film with a designed thickness, and then forming an uneven and regular frosted surface on the surface of the film through an embossing technology to realize multi-texture angle transformation of the surface to obtain multi-angle diffuse reflection of a light source;
When the supporting layer in the step 2 is made of PVC, PU or TPU, POE softening particles can be added, so that the wrinkle resistance and elasticity of the supporting layer are improved;
The specific flow of the production process in the step 2 is that high-temperature melting raw material particles are sprayed into a film, the film is longitudinally stretched, transversely stretched, embossed, cooled, shaped and rolled;
When the diffuse reflection supporting layer is prepared, a blue light absorption technology is introduced, and the realization method is that a light source absorbent is added into a raw material formula; the light source absorbent has the characteristic of absorbing blue light with the wavelength of 400-470 nm, and when the light source absorbent is circularly arranged in an array in the step 1, the size and radian of a circle are required to be matched and adjusted, the multi-angle consistency of light refraction and the proportion of color reduction degree are kept, and the thickness of the diffuse reflection supporting layer film is limited to 20-400um;
Step 3, preparing a silver reflecting layer;
And 4, preparing a composite membrane material, and compounding and forming through a spring pressing process of an industrial rolling wheel.
For the prior art, the invention combines the photoetching technology (manufacturing of spherical bodies), the industrial chemical technology (application of light source absorbers and the like), the industrial engineering application technology (equipment improvement, the spring pressing of engineering rollers and transfer printing technology) and the physical optical application technology (cutting of light sources and the like).
Therefore, the following advantages are provided:
1. combining a photolithography technique with a blue light absorption technique;
2. the solvent-free composite process is used for preparing the membrane material by a hot melt particle process, so that no solvation is realized, and the strength, the flatness, the aging resistance and the environmental protection (no residue, no bubble and no smell) of the material are improved;
3. the other technical effect of achieving quality change without solvation is that the obtained film material can achieve food-grade application standard.
Drawings
FIG. 1 is a schematic structural diagram of embodiment 1;
FIG. 2 is a schematic view of a single layer spiral curve of light rays of example 1;
FIG. 3 is a schematic diagram of the light ray double helix curve of example 1.
Detailed Description
The present invention will now be described in further detail by way of examples, and not by way of limitation, with reference to the accompanying drawings.
Example 1:
the composite membrane based on the circular array and the blue light absorption technology is shown in fig. 1, a curtain consists of a circular micro-bead optical layer, a diffuse reflection supporting layer and a silver reflecting layer, the circular micro-bead optical layer, the diffuse reflection supporting layer and the silver reflecting layer are formed from top to bottom in a compounding manner through a spring pressing process of an industrial rolling wheel, the following technical effects can be obtained, 1, a double-spiral curve of a light source is formed, and a picture with vivid high reduction degree is formed as shown in fig. 2 and 3; 2. realize solvent-free compounding.
The preparation method comprises the following steps:
Step 1, preparing a round micro-bead optical layer, wherein the surface of the round micro-bead optical layer comprises a round array, firstly, designing and manufacturing a graph with a nanoscale round array through professional drawing software, namely, a graph for short, then, guiding the graph into a photoetching machine through an algorithm, engraving a needed round array on a photoetching offset plate, and finally, carrying out batch seamless copying on a UV (ultraviolet) mould pressing system in a mode that the photoetching offset plate is taken as a master plate through a UV transfer printing technology;
The base material of the circular micro-optical chemical layer is PET or BOPP material, and the size and radian of the circular array are regulated according to theoretical calculation when the circular array is designed in the step 1, so that multi-angle consistency is maintained when light refraction is realized;
Step 2, preparing a diffuse reflection supporting layer, adopting a calendaring technology, and adopting a specific cast film production process, namely, firstly spraying a film on raw materials through a film nozzle after high-temperature melting, longitudinally stretching and transversely stretching to obtain a film with a designed thickness, and then forming an uneven and regular frosted surface on the surface of the film through an embossing technology to realize multi-texture angle transformation of the surface to obtain multi-angle diffuse reflection of a light source;
And (2) when the supporting layer is made of PVC, PU or TPU, POE softening particles are added, so that the wrinkle resistance and elasticity of the supporting layer are improved.
The specific flow of the production process in the step 2 is that high-temperature melting raw material particles are sprayed, longitudinally stretched, transversely stretched, embossed, cooled, shaped and rolled.
When the diffuse reflection supporting layer is prepared, a blue light absorption technology is introduced, and the realization method is that a light source absorbent is added into a raw material formula; the light source absorber has the characteristic of absorbing blue light with the wavelength of 400-470 nm, and when the circular array arrangement is carried out in the step 1, the proportion of the light source absorber needs to be matched and adjusted, the proportion of multi-angle consistency and color reduction degree of light refraction is kept, and the thickness of the diffuse reflection supporting layer film is limited to 20-400um
Step 3, preparing a silver reflecting layer;
And 4, preparing a composite membrane material, and compounding and forming through a spring pressing process of an industrial rolling wheel.
Claims (2)
1. A preparation method of a composite membrane based on a circular array and a blue light absorption technology is characterized by comprising the following steps: the curtain comprises a round micro-bead optical layer, a diffuse reflection supporting layer and a silver reflecting layer, wherein the round micro-bead optical layer, the diffuse reflection supporting layer and the silver reflecting layer are formed by compounding through a spring pressing process of an industrial rolling wheel from top to bottom, and the film material can reach food-grade application standards through a solvation-free process, and specifically comprises the following steps:
Step 1, preparing a round micro-bead optical layer, wherein the surface of the round micro-bead optical layer comprises a round array, firstly, designing and manufacturing a graph with a nanoscale round array through professional drawing software, namely, a graph for short, then, guiding the graph into a photoetching machine through an algorithm, engraving a needed round array on a photoetching offset plate, and finally, carrying out batch seamless copying on a UV (ultraviolet) mould pressing system in a mode that the photoetching offset plate is taken as a master plate through a UV transfer printing technology;
the base material of the round micro-bead optical layer in the step 1 is PET or BOPP material;
Step 2, preparing a diffuse reflection supporting layer, adopting a calendaring technology, and adopting a specific cast film production process, namely, firstly spraying a film on raw materials through a film nozzle after high-temperature melting, longitudinally stretching and transversely stretching to obtain a film with a designed thickness, and then forming an uneven and regular frosted surface on the surface of the film through an embossing technology to realize multi-texture angle transformation of the surface to obtain multi-angle diffuse reflection of a light source;
The specific flow of the cast film production process in the step 2 is that high-temperature melting raw material particles are sprayed, longitudinally stretched, transversely stretched, embossed, cooled, shaped and rolled;
When the diffuse reflection supporting layer is prepared, a blue light absorption technology is introduced, and the realization method is that a light source absorbent is added into a raw material formula;
The light source absorbent has the characteristic of absorbing blue light with the wavelength of 400-470 nm, and when the light source absorbent is circularly arranged in an array in the step 1, the size and radian of a circle are required to be matched and adjusted, the multi-angle consistency of light refraction and the proportion of color reduction degree are kept, and the thickness of the diffuse reflection supporting layer film is limited to 20-400um;
When the diffuse reflection supporting layer in the step 2 is made of PVC, PU or TPU, POE softening particles are added into the diffuse reflection supporting layer, so that the wrinkle resistance and elasticity of the diffuse reflection supporting layer are improved;
Step 3, preparing a silver reflecting layer;
And 4, preparing a composite membrane material, and compounding and forming through a spring pressing process of an industrial rolling wheel.
2. The method of manufacturing according to claim 1, characterized in that: when the circular array is designed in the step 1, the size and radian of the circular array are regulated according to theoretical calculation, so that multi-angle consistency is maintained when light refraction is realized.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210733245.XA CN114995043B (en) | 2022-06-27 | 2022-06-27 | Composite membrane material based on circular array and blue light absorption technology and preparation method thereof |
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| CN202210733245.XA CN114995043B (en) | 2022-06-27 | 2022-06-27 | Composite membrane material based on circular array and blue light absorption technology and preparation method thereof |
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| CN114995043B true CN114995043B (en) | 2024-07-05 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207148517U (en) * | 2017-08-31 | 2018-03-27 | 张家港康得新光电材料有限公司 | Orthographic projection curtain |
| CN114624950A (en) * | 2022-03-14 | 2022-06-14 | 浙江宇立新材料有限公司 | Manufacturing method of high-brightness projection curtain |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP3731593B2 (en) * | 2003-09-08 | 2006-01-05 | セイコーエプソン株式会社 | Method for manufacturing transmissive screen member, transmissive screen member, transmissive screen, and rear projector |
| JP2005115243A (en) * | 2003-10-10 | 2005-04-28 | Sony Corp | Reflection type screen and its manufacturing method |
| CN104090458B (en) * | 2014-06-20 | 2016-01-13 | 张家港宝视特影视器材有限公司 | Microballon projection screen and preparation method thereof |
| CN212989870U (en) * | 2020-09-22 | 2021-04-16 | 深圳市时代华影科技股份有限公司 | Film screen |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207148517U (en) * | 2017-08-31 | 2018-03-27 | 张家港康得新光电材料有限公司 | Orthographic projection curtain |
| CN114624950A (en) * | 2022-03-14 | 2022-06-14 | 浙江宇立新材料有限公司 | Manufacturing method of high-brightness projection curtain |
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