CN113738253A - Noise reduction screen window - Google Patents
Noise reduction screen window Download PDFInfo
- Publication number
- CN113738253A CN113738253A CN202111079881.7A CN202111079881A CN113738253A CN 113738253 A CN113738253 A CN 113738253A CN 202111079881 A CN202111079881 A CN 202111079881A CN 113738253 A CN113738253 A CN 113738253A
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- Prior art keywords
- transparent film
- noise reduction
- porous transparent
- porous
- present
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- 239000002861 polymer material Substances 0.000 claims abstract description 9
- 238000003475 lamination Methods 0.000 claims abstract description 4
- 239000011148 porous material Substances 0.000 claims description 14
- 239000003822 epoxy resin Substances 0.000 claims description 6
- 229920000647 polyepoxide Polymers 0.000 claims description 6
- 229920002050 silicone resin Polymers 0.000 claims description 6
- 229920006337 unsaturated polyester resin Polymers 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 description 7
- 229910003460 diamond Inorganic materials 0.000 description 4
- 239000010432 diamond Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/52—Devices affording protection against insects, e.g. fly screens; Mesh windows for other purposes
Abstract
The invention relates to a noise reduction screen window, comprising: a window frame; and the screen is arranged on the window frame, wherein the screen is a porous transparent film lamination and is made of transparent high polymer materials.
Description
Technical Field
The present invention relates to a screen window, and more particularly to a noise reduction screen window.
Background
Generally, in order to solve the noise from the surrounding environment of the building, the following techniques are generally adopted in the industry.
One is that the outside of the screen window is provided with a sound sensor and an ultrasonic transducer, and in addition, the inside of the screen window is provided with a self-adjusting controller and another sound sensor; the sound sensor transmits the collected outdoor noise to the self-adaptive controller, then the self-adaptive controller performs self-adaptive processing on the collected noise and transmits the noise to the ultrasonic transducer for output, and the output signal has the same amplitude and opposite phase with the outdoor noise and meets and cancels the outdoor noise in front of a window, so that the noise reduction effect is achieved. However, this method requires additional installation of noise reduction devices, which increases the cost in addition to the space occupied.
Another is to use a hermetic window or vacuum/hollow glass to directly reduce or block the medium that transmits sound. This approach has the disadvantage of not being able to compromise the air flow function at the same time.
Therefore, it is a considerable subject to provide a screen window capable of solving the problems of the prior art.
Disclosure of Invention
In view of the above, an aspect of the present invention provides a noise reduction screen window, including: a window frame; and the screen is arranged on the window frame, wherein the screen is a porous transparent film lamination and is made of transparent high polymer materials.
According to one or more embodiments of the present invention, the transparent polymer material is an unsaturated polyester resin, a silicone resin, or an epoxy resin.
According to one or more embodiments of the present invention, the porous transparent film stack comprises a plurality of porous transparent films.
According to one or more embodiments of the present invention, the porous transparent film stack has a pore size between 10 μm and 1000 μm.
According to one or more embodiments of the present invention, the porous transparent film stack has a pore density of between 2.9 x 103/cm2And 6.7X 108/cm2In the meantime.
According to one or more embodiments of the present invention, the porous transparent film stack has a non-porous region, and a ratio of an area of the non-porous region to an area of the porous transparent film stack is between 50% and 95%.
According to one or more embodiments of the invention, each of the porous transparent films has a noise reduction coefficient of between 0.4 and 0.8.
Another aspect of the present invention is to provide a transparent porous film having the same pattern but different pore sizes.
According to one or more embodiments of the present invention, each of the porous transparent films has a different noise reduction coefficient.
According to one or more embodiments of the present invention, the relative noise reduction ratio of the porous transparent film stack is between 20% and 55%.
Drawings
In order to make the aforementioned and other objects, features, advantages and embodiments of the invention more comprehensible, the following description is given:
FIG. 1A shows a porous transparent film of a noise reduction screen according to an embodiment of the present invention.
FIG. 1B is a schematic view of a perforated transparent film of a noise reduction screen according to an embodiment of the present invention.
FIG. 1C shows an embodiment of a perforated transparent film of a noise reduction screen.
FIG. 1D illustrates an embodiment of a perforated transparent film of a noise reduction screen.
FIG. 2 is a schematic view of a perforated transparent film stack of a noise reduction screen according to an embodiment of the present invention.
Fig. 3 shows a noise reduction screen window according to an embodiment of the present invention.
Reference numerals
10a, 20a, 30a, 40a porous transparent film
10b, 20b, 30b, 40b, 50 b-holes
10c, 20c, 30c, 40 c-grid
50 a-porous transparent film laminate
50 c-staggered pattern
100-window frame
150 a-gauze
200-noise reduction screen window
d1, d2, d3, d4 and d 5-size
In accordance with conventional practice, the various features and elements of the drawings are not necessarily to scale, emphasis instead being placed upon illustrating the particular features and elements of the invention in order to best explain the principles of the invention. Moreover, the same or similar reference numbers will be used throughout the drawings to refer to similar components and parts.
Detailed Description
The following disclosure provides different embodiments, or examples, for implementing different features of the provided objects. Specific examples of components and arrangements are described below to simplify the present disclosure and are not intended to be limiting; the size and shape of the device are also not limited by the scope or value of the invention, but may depend on the device's processing conditions or desired characteristics. For example, the technical features of the present invention are described using cross-sectional views, which are schematic illustrations of idealized embodiments. Thus, variations in the shapes of the illustrations as a result of manufacturing processes and/or tolerances are to be expected and should not be construed as limiting.
Furthermore, spatially relative terms, such as "below," "below …," "below," "…" and "above," are used for ease of describing the relationship between elements or features depicted in the drawings; spatially relative terms may encompass different orientations of the component in use or operation in addition to the orientation depicted in the figures.
First, terms used in the present specification, such as "pore size", "pore density", and "Area Coverage (AC)" will be specifically described. "pore size" refers to the size of the pores in the porous transparent film or porous transparent film laminate. "cell density" refers to the number of cells per unit area, e.g., 2.9X 103/cm2I.e. 2.9 x 10 in a square formula3A hole. "Area Coverage (AC)" refers to the ratio of the Area of the pattern constituting the porous transparent film to the Area of the porous transparent film.
Referring to fig. 1A, fig. 1A illustrates a porous transparent film of a noise reduction screen window according to an embodiment of the present invention. As shown in fig. 1A, the porous transparent film 10a has a plurality of holes 10b, each hole 10b is surrounded by a grid 10c, and the plurality of grids 10c form the pattern of the porous transparent film 10 a. In embodiments of the present invention, the grid 10c is diamond shaped or has other geometric shapes. In the embodiment of the present invention, the porous transparent film 10a is made of a transparent polymer material, which is an unsaturated polyester resin, silicone resin, or epoxy resin. In embodiments of the present invention, the perforated transparent film 10a may be combined with one or more other perforated transparent films to form a perforated transparent film laminate, which may be used as a screen and combined with a window frame to form a noise reduction screen in embodiments of the present invention.
Referring to FIG. 1A, in the embodiment of the present invention, the size d1 of the holes 10b of the porous transparent film 10a is between 10 μm and 1000 μm. In the embodiment of the present invention, the porous transparent film 10a has a pore density of 2.9 x 103/cm2And 6.7X 108/cm2In the meantime. In the embodiment of the present invention, the porous transparent film 10a has a non-porous region, which is the region where the plurality of interconnected cells 10c are located in FIG. 1A. It is noted that the following table 1 describes the area coverage and Relative Noise Reduction (RNR) of different porous transparent films and porous transparent film stacks in the examples of the present invention. Herein, the relative noise reduction ratio (RNR) is calculated by the following equation: RNR is calculated as NRC x (1/AC)/100%; where AC represents Area Coverage (AC), and NRC represents Noise Reduction Coefficient (Noise Reduction Coefficient). The respective relative noise reduction ratios (RNR) in table 1 are calculated based on the Noise Reduction Coefficient (NRC) of 0.5.
As shown in table 1, the ratio of the non-porous region to the area of the porous transparent film 10a, i.e., the area coverage of the mesh 10c, was 23.6%. In addition, the relative noise reduction (%) of the porous transparent film 10a was 11.8%.
TABLE 1
Referring to fig. 1B, fig. 1B illustrates a porous transparent film of a noise reduction screen window according to an embodiment of the present invention. As shown in FIG. 1B, the porous transparent film 20a also has a plurality of holes 20B, each hole 20B is surrounded by a grid 20c, and the plurality of grids 20c form the pattern of the porous transparent film 20 a. In embodiments of the present invention, the grid 20c is diamond shaped or has other geometric shapes. In the embodiment of the present invention, the porous transparent film 20a is made of a transparent polymer material, which is an unsaturated polyester resin, silicone resin, or epoxy resin. In one embodiment of the present invention, the porous transparent film 20a may be combined with the porous transparent film 10a or one or more other porous transparent films to form a porous transparent film laminate, and the porous transparent film laminate may be used as a screen and combined with a window frame to form a noise reduction screen in one embodiment of the present invention.
Referring to FIG. 1B, in the embodiment of the present invention, the size d2 of the holes 20B of the porous transparent film 20a is between 10 μm and 1000 μm. In the embodiment of the present invention, the porous transparent film 20a has a pore density of 2.9 x 103/cm2And 6.7X 108/cm2In the meantime. In the embodiment of the present invention, the porous transparent film 20a has a non-porous region, which is the region where the plurality of interconnected cells 20c are located in FIG. 1B. As shown in table 1, the ratio of the non-porous region to the area of the porous transparent film 20a, i.e., the area coverage of the mesh 20c, was 23.9%. In addition, the relative noise reduction (%) of the porous transparent film 20a was 11.95%.
Referring to fig. 1C, fig. 1C shows a porous transparent film of a noise reduction screen window according to an embodiment of the present invention. As shown in FIG. 1C, the porous transparent film 30a also has a plurality of holes 30b, each hole 30b is surrounded by a grid 30C, and the plurality of grids 30C form the pattern of the porous transparent film 30 a. In embodiments of the present invention, the grid 30c is diamond shaped or has other geometric shapes. In the embodiment of the present invention, the porous transparent film 30a is made of a transparent polymer material, which is an unsaturated polyester resin, silicone resin, or epoxy resin. In the embodiment of the present invention, the porous transparent film 30a may form a porous transparent film laminate with the porous transparent film 10a, the porous transparent film 20a, or other one or more porous transparent films, and the porous transparent film laminate may be used as a screen and combined with a window frame to form the noise reduction screen window of the embodiment of the present invention.
Referring to FIG. 1C, in the embodiment of the present invention, the size d3 of the holes 30b of the porous transparent film 30a is between 10 μm and 1000 μm. In the embodiment of the present invention, the porous transparent film 30a has a pore density of 2.9 x 103/cm2And 6.7X 108/cm2In the meantime. In the embodiment of the present invention, the porous transparent film 30a has a non-porous region, which is the region where the plurality of interconnected cells 30C are located in FIG. 1C. As shown in table 1, the ratio of the non-porous region to the area of the porous transparent film 30a, i.e., the area coverage of the mesh 30c, was 21.0%. In addition, the relative noise reduction (%) of the porous transparent film 30a was 10.5%.
Referring to fig. 1D, fig. 1D illustrates a porous transparent film of a noise reduction screen window according to an embodiment of the present invention. As shown in FIG. 1D, the transparent porous film 40a also has a plurality of holes 40b, each hole 40b is surrounded by a grid 40c, and the plurality of grids 40c form the pattern of the transparent porous film 40 a. In embodiments of the present invention, the grid 40c is diamond shaped or has other geometric shapes. In the embodiment of the present invention, the porous transparent film 40a is made of a transparent polymer material, which is an unsaturated polyester resin, silicone resin, or epoxy resin. In the embodiment of the present invention, the porous transparent film 40a may be combined with the porous transparent film 10a, the porous transparent film 20a, the porous transparent film 30a or one or more other porous transparent films to form a porous transparent film laminate, and the porous transparent film laminate may be used as a screen and combined with a window frame to form the noise reduction screen window of the embodiment of the present invention.
Referring to FIG. 1D, in the embodiment of the present invention, the size D4 of the holes 40b of the porous transparent film 40a is between 10 μm and 1000 μm. In one embodiment of the present invention, the porous transparent film 40a has a pore density between2.9×103/cm2And 6.7X 108/cm2In the meantime. In the embodiment of the present invention, the porous transparent film 40a has a non-porous region, which is the region where the plurality of interconnected cells 40c are located in FIG. 1D. As shown in table 1, the ratio of the non-porous region to the area of the porous transparent film 40a, i.e., the area coverage of the mesh 40c, was 22.3%. In addition, the relative noise reduction (%) of the porous transparent film 40a was 11.15%.
Next, referring to fig. 2, fig. 2 is a schematic diagram illustrating a porous transparent film stack of a noise reduction screen window according to an embodiment of the invention. As shown in FIG. 2, in the embodiment of the present invention, the porous transparent film laminate 50a is formed by alternately laminating a porous transparent film 10a, a porous transparent film 20a, a porous transparent film 30a and a porous transparent film 40a, and has a plurality of holes 50b and a plurality of interlaced patterns 50c of cells. In addition, the interlaced pattern 50c is formed by interlacing the mesh 10c, the mesh 20c, the mesh 30c, and the mesh 40 c. The overlapping order of the porous transparent film 10a, the porous transparent film 20a, the porous transparent film 30a, and the porous transparent film 40a may be adjusted according to different design purposes, and the present invention is not limited to a specific order. As shown in FIG. 2, in the embodiment of the present invention, the size d5 of the holes 50b of the porous transparent film stack 50a is between 10 μm and 1000 μm. In an embodiment of the present invention, the porous transparent film stack 50a has a pore density of 2.9 x 103/cm2And 6.7X 108/cm2In the meantime. In addition, as shown in table 1, the ratio of the area of the staggered pattern 50c to the porous transparent film laminate 50a, i.e., the area coverage of the staggered pattern 50c, was 94.4%. In addition, the relative noise reduction (%) of the porous transparent film laminate 50a was 47.2%. In other embodiments of the present invention, the ratio of the area of the other interlaced pattern to the other perforated transparent film stack, i.e., the area coverage of the other interlaced pattern, is 53.7%. In addition, the relative noise reduction (%) of the other porous transparent film laminate was 26.85%. In other embodiments, the area coverage of other grid or staggered patterns is between 50% and 95%. In other embodiments, the noise reduction factor of other porous transparent filmsBetween 0.4 and 0.8. In other embodiments, the relative noise reduction ratio of the other porous transparent film stack is between 20% and 55%.
Referring to fig. 3, fig. 3 is a schematic diagram illustrating a noise reduction screen window according to an embodiment of the invention. As shown in fig. 3, in the embodiment of the present invention, the noise reduction screen 200 includes a window frame 100 and a screen 150 a. The screen 150a is mounted on the window frame 100, wherein the screen 150a is, for example, a porous transparent film laminate 50a or other porous transparent film laminate made of transparent polymer material. As described above, in the embodiment of the present invention, the number of the porous transparent films constituting the porous transparent film stack may be two layers, three layers, four layers or more. In addition, as shown in FIG. 1A, FIG. 1B, FIG. 1C, FIG. 1D and FIG. 2, the porous transparent films can be laminated in the same order as the porous transparent films of the embodiment of FIG. 2, wherein the sizes of the pores are from large to small (D1 > D2 > D3 > D4). In the embodiment of the present invention, a Roll-to-Roll (RTR) machine is used to perform the bonding process. For example, for pasting the four layers of porous transparent films shown in fig. 1A, 1B, 1C, and 1D, three RTR machines with the same structure may be used for manufacturing, or one RTR machine may be used to perform three pasting processes.
In one embodiment of the present invention, for example, three RTR machines, the first RTR machine laminates the porous transparent film 10a and the porous transparent film 20a, and then winds the laminated laminate into a roll. The second RTR machine laminates the porous transparent film 30a and the porous transparent film 40a, and then winds the laminated lamination into a roll.
Then, the third RTR stage laminates the porous transparent film 10a and the porous transparent film 20a and the porous transparent film 30a and the porous transparent film 40a, and then laminates them to obtain the porous transparent film laminate 50 a. Specifically, the laminated layer of the porous transparent film 10a and the porous transparent film 20a is rolled out, and both sides of the laminated layer are coated with glue by an optical glue coater, and then the glue is primarily cured by a baking machine (oven) to fix the adhesion region. Finally, the laminated layer of the porous transparent film 10a and the porous transparent film 20a with adhesive is bonded together to form a porous transparent film laminated layer 50a through a roller set along with the laminated layer of the rolled porous transparent film 30a and the porous transparent film 40 a.
In another embodiment of the present invention, for example, the first process is to bond the porous transparent film 10a and the porous transparent film 20a, the second process is to bond the porous transparent film 30a and the porous transparent film 40a, and the third process is to bond the laminate of the porous transparent film 10a and the porous transparent film 20a and the laminate of the porous transparent film 30a and the porous transparent film 40a, and then bond them together to obtain the porous transparent film laminate 50 a.
In the above embodiment, the porous transparent films 10a, 20a, 30a, and 40a are made of the same noise reduction coefficient (i.e., NRC 0.5). In other embodiments, the porous transparent films 10a, 20a, 30a and 40a may be matched with materials with different noise reduction coefficients, for example, the porous transparent film 10a may be matched with a material with NRC of 0.5; the porous transparent film 20a may be matched with a material having NRC of 0.6; the porous transparent film 30a may be provided with a material having NRC of 0.4; the porous transparent films 40a may be formed with NRC 0.8, and may be overlapped and attached to each other.
In the embodiment of the present invention, the porous transparent film stack 50a and the gauze 150a have noise reduction effect, perspective effect, and air flow function, and no additional installation device is required.
Although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the present invention.
Claims (10)
1. A noise reduction screen, comprising:
a window frame;
and the gauze is arranged on the window frame, is a porous transparent film lamination and is made of a transparent high polymer material.
2. A noise reduction screen according to claim 1, wherein the transparent polymeric material is an unsaturated polyester resin, silicone resin or epoxy resin.
3. A noise reduction screen according to claim 2, wherein the stack of porous transparent films comprises a plurality of porous transparent films.
4. A noise reduction screen according to claim 3, wherein the aperture size of the porous transparent film laminate is between 10 μm and 1000 μm.
5. A noise reduction screen according to claim 3, wherein the porous transparent film laminate has a pore density of between 2.9 x 103/cm2And 6.7X 108/cm2In the meantime.
6. A noise reduction screen according to claim 3, wherein the stack of porous transparent films has a non-apertured region, the ratio of the area of the non-apertured region to the stack of porous transparent films being between 50% and 95%.
7. A noise reduction screen according to claim 3, wherein each said porous transparent film has a noise reduction coefficient of between 0.4 and 0.8.
8. A noise reduction screen according to claim 3, wherein each of the porous transparent films has the same pattern but different hole sizes.
9. A noise reduction screen according to claim 8, wherein the noise reduction factor of each of said porous transparent films is different.
10. A noise reduction screen according to claim 1, wherein the relative noise reduction ratio of the porous transparent film laminate is between 20% and 55%.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111079881.7A CN113738253A (en) | 2021-09-15 | 2021-09-15 | Noise reduction screen window |
| TW110135070A TW202314113A (en) | 2021-09-15 | 2021-09-22 | Noise-reducing screen window |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111079881.7A CN113738253A (en) | 2021-09-15 | 2021-09-15 | Noise reduction screen window |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113738253A true CN113738253A (en) | 2021-12-03 |
Family
ID=78739017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111079881.7A Pending CN113738253A (en) | 2021-09-15 | 2021-09-15 | Noise reduction screen window |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN113738253A (en) |
| TW (1) | TW202314113A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115288592A (en) * | 2022-06-28 | 2022-11-04 | 成都建筑材料工业设计研究院有限公司 | Building window screen with noise reduction function and manufacturing method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2097237U (en) * | 1990-05-24 | 1992-02-26 | 王毅民 | Noise reducing device |
| CN2337307Y (en) * | 1998-09-22 | 1999-09-08 | 李勇 | Air purifying screen |
| CN101725313A (en) * | 2009-12-15 | 2010-06-09 | 清华大学 | Porous sound absorption window |
| CN104405272A (en) * | 2014-10-21 | 2015-03-11 | 西安理工大学 | Noise reduction screen window and noise reduction method |
| CN204754721U (en) * | 2015-06-19 | 2015-11-11 | 南京信息工程大学 | Easily unpick and wash noise control sound screen window |
| CN205477322U (en) * | 2016-04-05 | 2016-08-17 | 北京海普优环保科技有限公司 | Can dirt -proof compound screen window cloth |
| CN206091846U (en) * | 2016-10-24 | 2017-04-12 | 谭淞文 | Antifog haze printing opacity screen window |
| CN108425616A (en) * | 2018-02-01 | 2018-08-21 | 安徽蓝冠科技股份有限公司 | A kind of haze screen window and preparation method thereof |
| CN109263182A (en) * | 2018-08-20 | 2019-01-25 | 安徽蓝冠科技股份有限公司 | A kind of nanofibers fold property micropore honeycomb convolution technology haze gauze and preparation method thereof |
| CN210832156U (en) * | 2019-08-17 | 2020-06-23 | 深圳市宇能恒采节能科技有限公司 | Pressure-reducing and noise-reducing type energy-saving net |
-
2021
- 2021-09-15 CN CN202111079881.7A patent/CN113738253A/en active Pending
- 2021-09-22 TW TW110135070A patent/TW202314113A/en unknown
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2097237U (en) * | 1990-05-24 | 1992-02-26 | 王毅民 | Noise reducing device |
| CN2337307Y (en) * | 1998-09-22 | 1999-09-08 | 李勇 | Air purifying screen |
| CN101725313A (en) * | 2009-12-15 | 2010-06-09 | 清华大学 | Porous sound absorption window |
| CN104405272A (en) * | 2014-10-21 | 2015-03-11 | 西安理工大学 | Noise reduction screen window and noise reduction method |
| CN204754721U (en) * | 2015-06-19 | 2015-11-11 | 南京信息工程大学 | Easily unpick and wash noise control sound screen window |
| CN205477322U (en) * | 2016-04-05 | 2016-08-17 | 北京海普优环保科技有限公司 | Can dirt -proof compound screen window cloth |
| CN206091846U (en) * | 2016-10-24 | 2017-04-12 | 谭淞文 | Antifog haze printing opacity screen window |
| CN108425616A (en) * | 2018-02-01 | 2018-08-21 | 安徽蓝冠科技股份有限公司 | A kind of haze screen window and preparation method thereof |
| CN109263182A (en) * | 2018-08-20 | 2019-01-25 | 安徽蓝冠科技股份有限公司 | A kind of nanofibers fold property micropore honeycomb convolution technology haze gauze and preparation method thereof |
| CN210832156U (en) * | 2019-08-17 | 2020-06-23 | 深圳市宇能恒采节能科技有限公司 | Pressure-reducing and noise-reducing type energy-saving net |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115288592A (en) * | 2022-06-28 | 2022-11-04 | 成都建筑材料工业设计研究院有限公司 | Building window screen with noise reduction function and manufacturing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| TW202314113A (en) | 2023-04-01 |
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Application publication date: 20211203 |