CN116492762A - Air filter cloth and manufacturing method thereof - Google Patents
Air filter cloth and manufacturing method thereof Download PDFInfo
- Publication number
- CN116492762A CN116492762A CN202210074030.1A CN202210074030A CN116492762A CN 116492762 A CN116492762 A CN 116492762A CN 202210074030 A CN202210074030 A CN 202210074030A CN 116492762 A CN116492762 A CN 116492762A
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- CN
- China
- Prior art keywords
- filter
- cloth
- filter sheet
- folding
- sheet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000004744 fabric Substances 0.000 title claims abstract description 74
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 239000000463 material Substances 0.000 claims abstract description 15
- 238000000465 moulding Methods 0.000 claims abstract description 11
- 239000010410 layer Substances 0.000 claims description 24
- 238000007493 shaping process Methods 0.000 claims description 18
- 239000002131 composite material Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 7
- 239000000853 adhesive Substances 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 4
- 239000012943 hotmelt Substances 0.000 claims description 4
- 239000004745 nonwoven fabric Substances 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 4
- 239000011241 protective layer Substances 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 238000001914 filtration Methods 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 4
- 230000008569 process Effects 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000750 progressive effect Effects 0.000 description 2
- 230000002633 protecting effect Effects 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 210000002345 respiratory system Anatomy 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/08—Filter cloth, i.e. woven, knitted or interlaced material
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
An air filter cloth and a manufacturing method thereof relate to the technical field of air filtration. The air filter cloth includes: a folding part which is folded by soft cloth and has a plurality of folding structures which are connected and have the same direction; each of the folding structures includes: a first filter and a second filter; the first filter disc is tiled and unfolded; the second filter sheet is connected with the first filter sheet and is folded on the upper side or the lower side of the first filter sheet; the width of the first filter sheet is greater than the width of the second filter sheet. The manufacturing method of the air filter cloth comprises the following steps: step one: preparing materials; step two: preparing cloth; step three: folding cloth; step four: and (5) molding. By adopting the technical scheme, the filter has the advantages of strong adaptability, capability of being applied to various products and outstanding filter protection effect.
Description
Technical Field
The invention relates to the technical field of air filtration, in particular to an air filter cloth and a manufacturing method thereof.
Background
Maintaining health is the most basic condition for human survival and development, and masks are the most common and important medical protective measures for respiratory tract health. The common masks are classified into three types, namely a common cotton mask, a disposable mask (surgical mask) and an N95 type mask, and under the condition of epidemic situation or serious illness, the common masks are generally medical masks and even N95 type masks, and the important medical positions are necessarily N95 type masks or masks with the same protection level.
The air conditioner air outlet department is provided with the filter screen generally, and the filter cloth of air conditioner filter screen is isosceles triangle structure, can not sew up, can not process into cloth shape, and traditional car filter cloth can not be changed with the plastic support frame, and traditional air filter cloth must rely on the air filter paper of rigidity to support just can form triangle-shaped air filter face.
There is also a problem that the filter cloth of the existing mask or the filter cloth of the air conditioner filter net has no suitability, single application and poor filtering effect, and needs improvement urgently.
Disclosure of Invention
The invention aims at overcoming the defects and shortcomings of the prior art, and provides an air filter cloth and a manufacturing method thereof, which have the advantages of strong adaptability, applicability to various products and outstanding filtering and protecting effects.
In order to achieve the above purpose, the first technical scheme adopted by the invention is as follows: an air filter cloth comprising: a folding part which is folded by soft cloth and has a plurality of folding structures which are connected and have the same direction;
each of the folding structures includes: a first filter and a second filter; the first filter disc is tiled and unfolded; the second filter sheet is connected with the first filter sheet and is folded on the upper side or the lower side of the first filter sheet; the width of the first filter sheet is greater than the width of the second filter sheet.
The invention further provides that the angle between the first filter and the second filter is less than 15 degrees.
The invention further provides that the angle between the first filter and the second filter is less than 5 degrees.
The invention further provides that the ratio of the width of the second filter to the width of the first filter is: 0.4:1-0.7:1.
the invention further provides that the ratio of the width of the second filter to the width of the first filter is: 0.5:1.
The invention further provides that the air filter cloth further comprises: and the fixing part is arranged on the upper side and/or the lower side of the folding part so as to shape the folding part.
The invention further provides that a non-woven fabric protective layer is arranged on the outer side of the fixing part.
The invention further provides that the soft cloth at least comprises an inner filter layer and an outer filter layer.
After the technical scheme is adopted, the invention has the beneficial effects that:
1. in the present invention, the folding portion has a plurality of folding structures, each folding structure including: the width of the first filter disc is larger than that of the second filter disc, namely, the folding part adopts a progressive structure, so that the air filtering area is enlarged, the filtering effect is enhanced, in addition, the air filtering cloth is folded by soft cloth and can be rolled up, the air filtering cloth is convenient to use and carry, convenient to process, can be cut and sewn at will, has rich application scenes and can be applied to the field of masks and the field of air conditioning filtration at least.
2. In the invention, the upper side and/or the lower side of the folding part is provided with the fixing part, so that the structure of the folding part is not easy to loosen, and the folding part is more convenient to process on specific products.
The invention also provides another technical scheme that: a method of making an air filter cloth for use in making an air filter cloth as described above, the method comprising the steps of:
step one: preparing materials: detecting and preparing an outer filter layer and an inner filter layer material;
step two: preparing cloth: adding an inner filter layer material into the inner side of the outer filter layer material to form a composite cloth;
step three, folding cloth: folding the composite cloth into a set shape by using a folding machine, or directly spraying the set shape by using melt-blown cloth production equipment;
step four: and (3) forming: and combining and forming the composite cloth with the set shape.
The invention further provides that in the fourth step, the combination molding is as follows: any one of ultrasonic shaping, suture shaping, welding shaping, adhesive shaping, hot press shaping or hot melt shaping:
after the technical scheme is adopted, the invention has the beneficial effects that:
in the invention, the composite cloth is directly folded into/sprayed out of a set shape by using a flanging machine or melt-blown cloth production equipment, so that the production efficiency is high, and the air filter cloth is more stable after being prepared due to the step of combined forming, and the folded part cannot be loosened.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic structural view of an air filter cloth;
FIG. 2 is a schematic view of a fully unfolded configuration of the fold;
FIG. 3 is a schematic view of the structure with the fold in a loose condition;
FIG. 4 is a schematic view of the structure of the folded portion in a folded state;
FIG. 5 is a schematic illustration of an air filter cloth applied to a mask;
fig. 6 is a flow chart of a method of making an air filter cloth.
Reference numerals illustrate: 100. a folding part; 110. a folding structure; 111. a first filter sheet; 112. a second filter sheet; 200. a fixing part.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The present embodiment is only for explanation of the present invention and is not to be construed as limiting the present invention, and those skilled in the art can make modifications to the present embodiment which do not contribute to the invention as required after reading the present specification, but are protected by the patent laws within the scope of the appended claims.
Embodiment one: this embodiment relates to an air filter cloth, as shown in fig. 1 to 4, comprising: a fold 100. The folded portion 100 is made of a soft material and is folded into a plurality of connected and uniformly oriented folded structures 110.
Each of the folding structures 110 includes: a first filter 111 and a second filter 112. The first filter 111 is spread flat; the second filter 112 is connected to the first filter 111 and is folded on the upper side or the lower side of the first filter 111. The width of the first filter 111 is greater than the width of the second filter 112. Referring to fig. 4, after folding, the second filter sheet 112 is covered by the first filter sheet 111, that is, the folding portion 100 adopts a progressive structure, so that the air filtering area is enlarged, and the filtering effect is enhanced.
As a preferred aspect, the angle between the first filter 111 and the second filter 112 is less than 15 degrees. Still further, the angle between the first filter 111 and the second filter 112 is less than 5 degrees. In this embodiment, second filter 112 is folded to fit against first filter 111.
As a preferred embodiment, the ratio of the width of the second filter 112 to the width of the first filter 111 is: 0.4:1-0.7:1. in this embodiment, as shown in FIG. 3, the ratio of the width of the second filter 112 to the width of the first filter 111 is: 0.5:1. Since the width of the second filter 112 is half that of the first filter 111, each filtering position has a three-layer structure, i.e., two first filter 111 and one second filter 112, after being folded.
As a preferred embodiment, the width of the first filter 111 is between 2mm and 20mm, and in particular, in this embodiment, the width of the first filter 111 is 10mm and the width of the second filter 112 is 5mm.
The soft cloth comprises at least one inner filter layer and one outer filter layer, and in this embodiment, the soft cloth comprises two outer filter layers and an inner filter layer arranged between the two outer filter layers. Specifically, the outer filter layer is non-woven fabric, and the inner filter layer is melt-blown cloth.
As a preferred aspect, the air filter cloth further comprises: and a fixing part 200 provided at an upper side and/or a lower side of the folding part 100 to shape the folding part 100. The fixing portion 200 is of various types, i.e., fixing molding modes, ultrasonic molding, suture molding, welding molding, adhesive molding, hot press molding, hot melt molding, and the like. In this embodiment, the seam forming is adopted, and the upper side and the lower side of the folded portion 100 are both sewn, so that the air filter cloth is more stable after being manufactured, and the folded portion 100 is not loosened.
Further, a non-woven fabric protective layer is provided on the outer side of the fixing portion 200.
As a specific application, as shown in fig. 5, a protective mask is used for protecting the mouth and nose of a human body. It comprises the following steps: support, air filter cloth and soft welt. When the air filter is worn, the air in the support piece and the external air are exchanged through the air filter cloth.
The support piece is provided with an arc-shaped side wall matched with the radian of the face and an arc-shaped bulge matched with the radian of the nose, so that the protective mask is more fit to the face, and is comfortable and compact to wear.
The soft welt is arranged around the upper outer edge of the arc-shaped side wall and the outer edge of the arc-shaped bulge, so that the supporting piece can be prevented from scratching the face, the contact area between the supporting piece and the face can be effectively increased, and the impression is avoided after the face is worn.
In terms of materials, the support member is made of transparent materials. So that the identity of the wearer can be identified, it is very useful in some special situations, such as: face recognition, conference communication, and the like. The soft welt is made of silica gel material, so that the wearing is more comfortable.
Embodiment two: the present invention also provides a method for manufacturing an air filter cloth, as shown in fig. 6, for manufacturing an air filter cloth according to the first embodiment, the method comprising the steps of:
step one: preparing materials: detecting and preparing an outer filter layer and an inner filter layer material;
step two: preparing cloth: adding an inner filter layer material into the inner side of the outer filter layer material to form a composite cloth;
step three, folding cloth: folding the composite cloth into a set shape by using a folding machine, or directly spraying the set shape by using melt-blown cloth production equipment;
step four: and (3) forming: and combining and forming the composite cloth with the set shape.
In the fourth step, the combination molding is as follows: ultrasonic shaping, suture shaping, welding shaping, adhesive shaping, hot press shaping or hot melt shaping.
By adopting the manufacturing process, the composite cloth is directly folded into/sprayed out of a set shape by using a flanging machine or melt-blown cloth production equipment, the production efficiency is high, and the air filter cloth is more stable after being manufactured due to the step of combined forming, so that the folded part 100 can not be loosened.
The above description is only for the purpose of illustrating the technical solution of the present invention and not for the purpose of limiting the same, and other modifications and equivalents thereof by those skilled in the art should be included in the scope of the claims of the present invention without departing from the spirit and scope of the technical solution of the present invention.
Claims (10)
1. An air filter cloth, characterized in that: comprising the following steps: a folding part (100) which is folded by soft cloth and has a plurality of folding structures (110) which are connected and have the same direction;
each of the folding structures (110) comprises: a first filter sheet (111) and a second filter sheet (112); the first filter sheet (111) is spread in a flat mode; the second filter sheet (112) is connected with the first filter sheet (111) and is folded on the upper side or the lower side of the first filter sheet (111); the width of the first filter sheet (111) is larger than the width of the second filter sheet (112).
2. An air filter cloth according to claim 1, characterized in that the angle between the first filter sheet (111) and the second filter sheet (112) is less than 15 degrees.
3. An air filter cloth according to claim 2, characterized in that the angle between the first filter sheet (111) and the second filter sheet (112) is less than 5 degrees.
4. The air filter cloth according to claim 1, wherein the ratio of the width of the second filter sheet (112) to the width of the first filter sheet (111) is: 0.4:1-0.7:1.
5. the air filter cloth according to claim 4, wherein the ratio of the width of the second filter sheet (112) to the width of the first filter sheet (111) is: 0.5:1.
6. The air filter cloth of claim 1, further comprising: and a fixing part (200) which is arranged on the upper side and/or the lower side of the folding part (100) to shape the folding part (100).
7. The air filter cloth according to claim 6, wherein a non-woven fabric protective layer is provided on the outer side of the fixing portion (200).
8. The air filter cloth of claim 1, wherein the soft cloth comprises at least one inner filter layer and one outer filter layer.
9. A method of making an air filter cloth according to any one of claims 1 to 8, the method comprising the steps of:
step one: preparing materials: detecting and preparing an outer filter layer and an inner filter layer material;
step two: preparing cloth: adding an inner filter layer material into the inner side of the outer filter layer material to form a composite cloth;
step three, folding cloth: folding the composite cloth into a set shape by using a folding machine, or directly spraying the set shape by using melt-blown cloth production equipment;
step four: and (3) forming: and combining and forming the composite cloth with the set shape.
10. The method of manufacturing an air filter cloth according to claim 9, wherein in the fourth step, the combination molding is: ultrasonic shaping, suture shaping, welding shaping, adhesive shaping, hot press shaping or hot melt shaping.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210074030.1A CN116492762A (en) | 2022-01-21 | 2022-01-21 | Air filter cloth and manufacturing method thereof |
| PCT/CN2023/071310 WO2023138427A1 (en) | 2022-01-21 | 2023-01-09 | Air filtering fabric and mask |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210074030.1A CN116492762A (en) | 2022-01-21 | 2022-01-21 | Air filter cloth and manufacturing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116492762A true CN116492762A (en) | 2023-07-28 |
Family
ID=87321844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210074030.1A Pending CN116492762A (en) | 2022-01-21 | 2022-01-21 | Air filter cloth and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116492762A (en) |
-
2022
- 2022-01-21 CN CN202210074030.1A patent/CN116492762A/en active Pending
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