TW202302199A - Filtering device and manufacturing method thereof capable of improving air circulation efficiency - Google Patents

Abstract

A filtering device and a manufacturing method thereof are provided. A pre-heated and melted viscose is sprayed in a filamentous form on a breathable and soft surface covering layer to form a distribution of irregularly concavely and convexly interwoven countless viscose filaments. The viscose filaments are distributed to form a web-like viscose layer having a dense distribution of accommodating spaces therein. In each accommodating space of the web-like viscose layer, multiple filter materials are evenly distributed. The countless viscose filaments of the web-like viscose layer are individually adhered and supported on sides of each filter material to form countless airflow gaps. With such a procedure being repeatedly implemented for at least once, a web-like viscose layer can be subsequently sprayed on a top thereof, and another surface covering layer is set to cover thereon. Afterwards, rolling and air-drying (if necessary) are implemented until each web-like viscose layer becomes dry, and a filter structure in which a middle filter part is firmly bonded and supported between the two surface covering layers is formed.

Description

Filtration device and manufacturing method thereof

The present invention relates to a filter device and a manufacturing method thereof, especially a filter device which can avoid processing at high temperature, so as to improve the traditional processing method because the hot melt adhesive is easy to form hot melt blockage on the air-permeable surface of the filter material or the surface coating in the molten state, and The structure that destroys the absorption characteristics of the filter material to ensure the maintenance of normal air circulation efficiency and filtering effect.

In the traditional air filter structure, it is more common to accommodate a large number of filter material particles between the two surface materials (which can be non-woven or breathable fiber cloth), and evenly mix and distribute solid (hot-melt) adhesive powder between the filter material particles After rolling and heating, the particles of the filter material can be arranged more closely, and the above solid (hot melt) glue powder can be solidified and volatilized after being melted, so that the particles of the filter material can be bonded and fixed on the two surface materials (non-woven fabrics). between each filter particle, and form an air flow channel for air circulation; Melt glue is easy to fill between the particles of each filter material and cover the surface of some filter material particles, which obviously affects the smoothness of air circulation and the effective surface area of each filter material particle to absorb harmful substances in the airflow, reducing the total collection efficiency of the filter.

Furthermore, many filter materials (filter material particles) are mostly rich in water and a variety of easily oxidizable components. After being heated at high temperature, it often causes water loss and oxidation and deterioration, which seriously affects the actual filtering effect of these filter materials.

In the Republic of China Patent Announcement No. I542402 Invention Case (Application No. 103132092, hereinafter referred to as the previous case), an air filter device, its adhesive-free filter structure and the method for making the filter structure are disclosed. It mainly includes: a plurality of filter material particles and two hot-melt cotton layers that are thermally welded together; an air layer can be separated between the two hot-melt cotton layers, and each hot-melt cotton layer has multiple layers on the surface. When heated, the fiber hairs that protrude from the surface or fuse with each other, use the fiber hairs of the two heat-melt cotton layers to intersect or intersect in the air layer, so that the particles of the filter material can be distributed in the air layer with many interlaced fiber hairs. In the air layer, and held together by the fibers of the two heat-melt cotton layers.

The above-mentioned structure, although it uses the surface of each hot-melt cotton layer to generate hot-melt fiber wool in a heated state, to bond the filter material particles in the air layer to form a fixed effect, so there is no need to use additional glue to combine the filter material particles and The hot-melt cotton layer on the upper and lower sides; but in the assembly process before heating, when the filter material particles are stacked on one hot-melt cotton layer and have not been positioned in any way, the overall support is poor, and the other hot-melt cotton layer After being placed on each filter material particle, it is easy to form a collapse, which is not conducive to the subsequent molding operation.

And because the fiber hair of the above-mentioned previous case may be formed by the heat-melt cotton layer being melted and extended outwards from its surface during the heating process, or the previous case expects that the fiber hair of the two heat-melt cotton layers will be produced in the heating process. Fusion, so as to produce hot-melt viscosity that binds the particles of the filter material, so when the hot-melt cotton layer is heated between 100 and 200 ° C, the fiber hairs with hot-melt characteristics are formed or the fiber hairs are separated. At the same time that the hot-melt bonding occurs between the fibers, at least part of the hot-melt cotton layer made of the same material as the fiber wool will also produce hot-melt phenomenon, which will cause fiber holes on the surface and/or inside of the hot-melt cotton layer Deformation and shrinkage due to heat melting and even blockage will affect the circulation efficiency of air passing through the filter device and greatly reduce the overall air filtration effect.

In addition, after the filter material particles held together by the fiber hairs between the two hot-melt cotton layers are heated, water loss and oxidative deterioration similar to the aforementioned filter material (filter material particles) will also occur. The effect will be seriously affected, and the types of filter materials that can be used to make the filter devices are also limited, so that the applicable range of the filter devices is also greatly limited.

In view of the above-mentioned shortcomings of the conventional air filter structure, the inventors researched ways to improve these shortcomings, and finally the present invention is produced.

The main purpose of the present invention is to provide a method for manufacturing a filter device, which is attached to a breathable and soft surface layer, and the pre-heated and melted hot-melt adhesive is sprayed in a filamentary form by using a glue spraying mechanism to form irregular irregularities. Intricate and intertwined countless filaments of viscose are distributed to form a networked viscose layer with a dense accommodating space, and most filter materials (which can be particles or powders) are evenly dispersed in the netted viscose layer. The numerous filaments of adhesive in the mesh adhesive layer adhere to the local surfaces of the filter materials, and support arches to form numerous airflow gaps around the sides of each filter material. After this procedure is repeated at least once, it can be placed again Arrange a net-like adhesive layer on the top layer, and cover it with another surface coating layer, and then go through rolling processing and air-drying (if necessary) until each net-like adhesive layer is dry, and then a middle filter part can be formed The filter mesh structure is firmly bonded and supported between the surface coating layers, and can effectively adhere and hold each filter material without directly heating the mesh adhesive layer and any surface coating layer at all, It can prevent the surface of each filter material from being covered by heated and flowing hot-melt adhesive, and is supported by each filament adhesive, forming many airflow gaps between the particles or powder of each filter material that are conducive to air circulation, so as to make Each filter material forms sufficient contact with the air, which greatly improves the overall filtering effect of absorbing harmful substances.

Another object of the present invention is to provide a method of manufacturing a filter device, which can effectively prevent the filter materials from losing moisture or being heated due to heating because there is no need to heat the two surface coating layers and each filter material in the overall process. Oxidative deterioration can also reduce the flow of viscose that blocks the airflow space between the filter materials due to heating and flow, and the airflow channels of the two surface layers are closed due to melting, so as to ensure the characteristics of each filter material to absorb harmful substances and the air flow. The circulation efficiency that can pass through the periphery of each filter material smoothly.

Another object of the present invention is to provide a filter device according to the above processing method, which can save the use of a large amount of glue by using the spraying method of filament viscose, and will not have an unexpected high temperature effect on the filter material during the bonding process , which can effectively maintain the good filtration characteristics of each filter material; moreover, each filter material can be evenly distributed and held and supported in the mesh adhesive layer, forming an intermediate filter part with numerous unimpeded airflow gaps, which can effectively maintain smooth filter airflow , and make the filter air flow and the filter material have a good contact effect, greatly improving the filter quality of the filter device.

In actual application, the filter device of the present invention is suitable for being assembled into a filter assembly that can filter out particles in the gas; in a feasible embodiment, the filter assembly can include: a frame body, and a filter assembly fixed in the frame As for the above-mentioned sheet filter device, the filter device can be bent and folded into the frame, and the filter device can be in different shapes such as bag shape, V shape, cylinder shape or box shape.

In order to achieve the above-mentioned purpose and effect, the technical means adopted by the present invention include: a filter device, which includes: two air-permeable first and second overcoat layers, and at least one adhesively placed on the first and second overcoat layers. The intermediate filter part between them is characterized in that: the intermediate filter part is a mesh viscose layer formed by countless filaments of viscose in a concavo-convex irregular interweaving distribution, and is evenly dispersed and filled in the mesh viscose layer The two sides of the mesh adhesive layer are respectively bonded to the first and second surface coating layers, and each filter material is firmly adhered and clamped by the interwoven filaments of the mesh adhesive layer. Positioning, and each filter material is supported by the filaments of adhesive, so that many densely distributed and interconnected airflow gaps can be generated.

According to the above structure, a multi-layer intermediate filter part is arranged between the first and second surface coating layers.

According to the above structure, at least one spacer layer is arranged between each intermediate filter part.

According to the above structure, the spacer layer has the same material as that of the first and second surface coating layers.

According to the above structure, wherein the spacer layer is selected from non-woven fabric or fiber cloth capable of filtering out acid and alkali, or fiber cloth capable of filtering out microorganisms, bacteria, and viruses, or a filter membrane capable of filtering out microorganisms, bacteria, and viruses, etc. structure.

According to the above structure, at least one of the first and second surface coating layers and the adjacent middle filter part is provided with a surface coating glue layer.

According to the above structure, a surface adhesive layer is provided between at least one side of the spacer layer and the adjacent middle filter part.

According to the above structure, each intermediate filter part has different filter materials.

According to the above structure, the filter material is one of granular materials selected from activated carbon, potassium hydroxide, potassium carbonate, aluminum oxide or ion exchange resin.

According to the above structure, the filter material of at least one intermediate filter part is used to filter out acidic substances, alkaline substances, volatile organic compounds or 3.5-valent benzaldehyde substances.

According to the above structure, wherein the first and second surface coating layers are all selected from non-woven fabrics or fiber cloths capable of filtering out acids and alkalis or fiber cloths capable of filtering out microorganisms, bacteria, and viruses or can filter out microorganisms, bacteria, and viruses One of the structures such as the filter membrane.

According to the above structure, the first and second surface coating layers and the mesh adhesive layer are respectively made of different materials.

The technical means adopted by the present invention further include: a filter assembly, including: a frame; and a filter device as described above, the filter device is fixed in the frame.

According to the above structure, the filter device is folded and arranged in the frame.

According to the above structure, the filtering device is designed as one of various shapes such as bag shape, V shape, cylinder shape or box shape.

The technical means adopted by the present invention also includes: a manufacturing method for producing the filter device described in the foregoing items, which includes: providing a first surface coating layer; pre-heating and melting hot-melt adhesive to form silk Numerous filaments of viscose, which are irregularly intertwined and irregularly intertwined, are sprayed in a shape and distributed on the first surface coating layer, forming a networked viscose layer formed by interweaving and distributing filaments of viscose. One side is partially bonded to the first surface coating layer; then most of the filter materials are evenly dispersed and filled in the mesh adhesive layer, and the filament adhesive is used to adhere each filter material respectively and fix it on each wire. In the gap between the mesh adhesive; before the mesh adhesive layer dries, a second surface covering layer is covered on the mesh adhesive layer, and after pressing, the mesh adhesive layer The other side is partially bonded to the second surface layer, so as to form an intermediate filter part between the first and second surface layers; after the mesh adhesive layers are completely dried, the first, A firm connection and positioning are formed between the two surface coating layers and the middle filter part.

According to the above method, before covering the second surface layer, multiple layers of mesh adhesive layers and a plurality of filter materials can be repeatedly arranged on the first surface layer to form a multi-layered intermediate filter part.

According to the above method, at least one spacer layer is provided between each intermediate filter portion during the stacking process of each intermediate filter portion.

According to the above method, before covering the second surface layer, a surface layer of viscose is provided above the uppermost middle filter part.

According to the above method, during the stacking process of the spacer layer, a surface-coated adhesive layer is respectively provided between the lower part of the spacer layer and the adjacent middle filter part.

In order to obtain a more specific understanding of the above-mentioned purpose, effect and characteristics of the present invention, the following drawings are hereby described as follows:

Please refer to shown in Figures 1 to 4, it can be known that the main manufacturing process of the filter device A of the first embodiment of the present invention is as follows:

First, provide a sheet-like first surface coating layer 1; use a glue spraying mechanism X to spray pre-heated and melted glue on the first surface coating layer 1 in a filamentary form to form irregular irregularities Numerous intertwined filaments of viscose 21 are distributed, and the intertwined distribution of the filaments of viscose 21 constitutes a network-shaped viscose layer 20 with uniform thickness and dense accommodation space inside. The filaments of viscose 21 are tied to a (bottom) Contact and adhere to the first surface coating layer 1 (as shown in Figure 1).

In actual application, an air nozzle (not shown) capable of spraying air can be installed on the side of the glue spraying mechanism X, and the airflow with different intensities can be used to continuously or intermittently act on the sprayed filamentary glue 210 to make it scatter The paths swing to and fro to different degrees, so that the filament-shaped adhesive 210 falls on the first surface layer 1 to form the uneven and intertwined filament adhesive 21 structure.

Then, in the process of cooling and solidifying the net-shaped adhesive layer 20, a sprinkler mechanism Y is used to evenly spread a plurality of filter materials 22 (which can be particles or powders) from above the net-shaped adhesive layer 20, so that each The filter material 22 can be dispersively filled into the accommodating space between the filaments of the adhesive layer 20 to form an even distribution (as shown in FIG. 2 ).

Before the net-shaped adhesive layer 20 is completely dried, the same method can be used to form a surface-coated adhesive layer 200 of the same filament-shaped adhesive 210 (or filament-shaped adhesive 21 ) to cover and adhere to the net-shaped adhesive. Layer 20, so as to completely cover the filter materials 22 (as shown in FIG. 3 ), avoid affecting the subsequent covering and assembly operations due to the exposure of the filter materials 22 .

A second surface covering layer 3 is used to cover the surface covering adhesive layer 200, and is pressed by a rolling mechanism Z (can be air-dried as required), so that the surface covering adhesive layer 200 can pass through another ( The top) side is in contact with the second surface coating layer 3, and the filter materials 22 form a relatively solid arrangement structure; the interwoven filament adhesive 21 of the mesh adhesive layer 20 is used to bond and hold each filter material 22 respectively , and each filter material 22 is supported in the gaps between the filamentary viscose 21, densely distributed and interconnected airflow gaps 23 can be produced, so as to form an intermediate filter part 2 with countless ventilation holes (such as the fourth shown in the figure).

Finally, after the mesh adhesive layer 20 and the surface adhesive layer 200 are dried, not only the first and second surface layers 1, 3 can pass through the mesh adhesive layer 20, the surface adhesive layer The layers 200 are firmly connected to each other, and each filter material 22 is also firmly combined in the mesh adhesive layer 20 and the surface adhesive layer 200, so that the first and second surface layers 1, 3 and the middle filter part 2 to be combined into a filter device A.

Please refer to Fig. 5, it can be seen that the filter device A made by the present invention according to the manufacturing process of the aforementioned first embodiment has a structure comprising: a first surface layer 1, an intermediate filter portion 2 and a second surface layer 3 and other parts; wherein the first and second surface coating layers 1 and 3 are respectively breathable and soft sheet-like structures (which can be non-woven fabrics or fiber cloths that can filter out acids and alkalis, or can filter out microorganisms, bacteria, and viruses. Fiber cloth or filter membrane that can filter out microorganisms, bacteria, viruses, etc.), and a layer (or multi-layered) intermediate filter part 2 is provided between the first and second surface coating layers 1 and 3, which The middle filter part 2 is composed of a networked adhesive layer 20 formed by filaments of adhesive 21 irregularly intertwined and distributed, and a plurality of filter materials 22 uniformly arranged in the networked adhesive layer 20, and Between the intermediate filter part 2 and the second surface layer 3 (or the first surface layer 1) can be provided with a surface adhesive layer 200 as required; each filter material 22 of this structure can withstand the uneven Irregular and intertwined filaments of viscose 21 are firmly clamped and positioned in the accommodating space therebetween, and each filament of viscose 21 is used to support between each filter material 22, which can just produce a densely distributed and interconnected space. Airflow gap 23.

In the above structure, the filter material 22 is one of granular materials selected from activated carbon, potassium hydroxide, potassium carbonate, aluminum oxide or ion exchange resin.

In actual application, the filter device A has the following characteristics:

Since the filament adhesive 21 of the mesh adhesive layer 20 is distributed irregularly and intertwinedly in the form of filaments, it can not only form a plurality of interlaced contact adhesion sites around each filter material 22, but also in the first filter material 22. 1. A more stable support and clamping effect is produced between the two surface coating layers 1 and 3, and it can prevent the overall adhesive from being covered or filled in useless spaces unexpectedly, so as to reduce the amount of adhesive used in the processing process and reduce production costs .

In addition, the filament viscose 21 can reduce the contact area with each filter material 22, and reduce the space occupied between each filter material 22, so that each filter material 22 has a larger exposed (contact with air) surface area , in addition to increasing the air circulation space and efficiency of each airflow gap 23, it can also improve the overall total collection efficiency.

Furthermore, in the process of processing, each filter material 22 can be made under the condition that the mesh adhesive layer 20, the surface adhesive layer 200 and the first and second surface coating layers 1, 3 are not directly heated at all. Adhesive and fixed in the sandwich structure formed by the first and second surface coating layers 1, 3, mesh adhesive layer 20, and surface adhesive layer 200, in addition to effectively preventing the surface of each filter material 22 from being subjected to hot-melt adhesive Covered and supported by the filaments of viscose 21, many airflow gaps 23 can be formed between the filter materials 22, so that the filter materials 22 can form sufficient contact with the air, and can effectively avoid the air flow of the filter materials 22. 22 lose water or oxidize and deteriorate due to heat, so as to effectively ensure that each filter material 22 maintains a better filter quality.

According to the above structure, the filament adhesive 21 of the present invention and the first and second surface coating layers 1, 3 can be used to freely adjust the best matching combination according to the characteristic requirements of the product and the tolerance index of the use environment. It is not limited to be made of the same material, especially because the filament viscose 21 is heated before spraying, it will not directly heat the filter material 22 and cause adverse effects on the filtration characteristics, which can effectively improve the traditional method disclosed above. are missing.

Please refer to Fig. 6, it can be seen that the filter device B disclosed in the second embodiment of the present invention has a structure comprising: at least one intermediate filter part 2a, and the same first surface layer 1 and intermediate filter part 2a as the aforementioned filter device A. The filter part 2, the surface-coated adhesive layer 200, the second surface layer 3 and other parts; wherein the intermediate filter part 2 is molded on the first surface layer 1 using the same manufacturing process as the aforementioned first embodiment, Before the mesh adhesive layer 20 is completely dry, the melted adhesive is sprayed on the filament adhesive 21 of the intermediate filter part 2 in a filiform shape, irregularly intertwined, and interlaced by the glue spraying mechanism X. A net-shaped viscose layer 20a composed of filament viscose 21a is formed, and the filament viscose 21a overlaps and adheres to the original net-shaped viscose layer 20 (filament viscose 21 ) of the intermediate filter part 2 .

Then, in the process of cooling and solidifying the net-shaped viscose layer 20a, the sprinkler mechanism Y is used to evenly sprinkle most of the filter materials 22a from above the net-like viscose layer 20a, so that each filter material 22a can be dispersed into the net. In the accommodating space of each filament adhesive 21a of the adhesive adhesive layer 20a, and form uniform dispersion.

Finally, before the uppermost mesh adhesive layer 20a dries, the surface adhesive layer 200 is placed on the mesh adhesive layer 20a, and then the second surface layer 3 is used to cover the surface layer. on the adhesive layer 200, and pressed by a rolling mechanism Z, so that the surface adhesive layer 200 can be in contact with the mesh adhesive layer 20a and the second surface layer 3 respectively; The viscose layer 20a is irregular and intricately intertwined filament viscose 21a respectively bonded and held each filter material 22a, and supported between each filter material 22a, can generate densely distributed and interconnected airflow gaps 23a, and filter in the middle An intermediate filter part 2a is formed above the part 2.

In actual application, the first and second surface coating layers 1, 3 can be formed into multi-layered intermediate filter parts 2, 2a... in the same way; and the filter material 22a can be the same as the filter material 22 or Different materials are used to produce various filtering effects in response to different needs, so as to provide product diversity.

The filter material 22, 22a can be selected from one of granular materials such as activated carbon, potassium hydroxide, potassium carbonate, aluminum oxide or ion exchange resin; and at least one intermediate filter part 2 (or intermediate filter part 2a) The filter material 22 (or filter material 22a) is used to filter out acidic substances, alkaline substances, volatile organic compounds or 3.5-valent benzaldehyde substances.

Please refer to Fig. 7, it can be seen that the filter device C disclosed in the third embodiment of the present invention has a structure comprising: at least two intermediate filter parts 2a, 2b, a spacer layer 4, and the same first filter device A as above. A surface covering layer 1, an intermediate filter part 2, a surface covering adhesive layer 200, a second surface covering layer 3 and other parts; wherein the intermediate filter part 2 is molded on the first embodiment using the same manufacturing process as the aforementioned first embodiment On a surface coating layer 1, before the mesh adhesive layer 20 dries, the glue spraying mechanism X sprays the melted adhesive on the mesh adhesive layer 20 in the form of filaments, irregularly intertwined and intertwined. , forming a mesh adhesive layer 20a composed of filament adhesive 21a, the filament adhesive 21a and the filament adhesive 21 are stacked and adhered.

During the cooling and solidification process of the mesh adhesive layer 20a, the sprinkler mechanism Y is used to evenly spread most of the filter materials 22a from above the mesh adhesive layer 20a, so that each filter material 22a can be dispersed into the mesh adhesive layer. Each filament adhesive 21a of the adhesive layer 20a is uniformly distributed in the accommodation space of each filament adhesive; The surface is covered with the adhesive layer 200 .

Then, the melted glue is sprayed on the spacer layer 4 in a filiform shape irregularly and intricately interlaced by the glue spraying mechanism X to form a mesh glue layer 20b composed of filament viscose 21b. The filament glue 21b is stacked and adhered to the spacer layer 4 .

During the cooling and solidification process of the mesh adhesive layer 20b, the sprinkler mechanism Y is used to evenly spread most of the filter materials 22b from above the mesh adhesive layer 20b, so that each filter material 22b can be dispersed into the mesh adhesive layer. Each filament adhesive 21b of the adhesive layer 20b is uniformly distributed in the accommodation space; and then a surface adhesive layer 201 that is the same as the surface adhesive layer 200 is laid on the mesh adhesive layer 20b .

Finally, before the surface-coating adhesive layer 201 dries, the second surface-coating layer 3 is covered on the surface-coating adhesive layer 201, and pressed by a rolling mechanism Z, so that the first and second surface-coating layers The layers 1, 3 and the spacer layer 4 can be firmly connected to each other by the mesh adhesive layers 20, 20a, 20b and the surface adhesive layers 200, 201; Irregularly intertwined filaments of viscose 21, 21a, 21b adhere to and hold each filter material 22, 22a, 22b respectively, and are supported between each filter material 22, 22a, 22b, which can generate dense and interconnected airflow respectively Gaps 23, 23a, 23b.

In actual application, the filter materials 22, 22a, 22b can be made of the same or different materials, and the spacer layer 4 can be a non-woven fabric or a fiber cloth that can filter out acids and alkalis or can filter out microorganisms, bacteria, and viruses. The fiber cloth can filter out microorganisms, bacteria, viruses, etc., so as to produce various filtering effects according to different needs, so as to provide product diversity.

Please refer to Figures 8 and 9, it can be seen that the present invention can be used in practical applications, the filter device A (or filter device B, C) of a single sheet can be arranged in the frame body 5 with a single space, and the filter Device A (or filter device B, C) can be repeatedly bent in a wavy or zigzag shape as required to form a filter assembly D (as shown in Figure 8); moreover, the filter device A (or filter device B and C) can also be designed in different shapes such as bag, V-shaped, cylindrical or box-shaped, and other undisclosed form changes do not mean that they are not within the scope of the present invention.

In actual application, multiple sheet-shaped filter devices A, B, and C can also be arranged in the frame body 5 with a single space, and the filter devices A, B, and C can be folded and folded together as required. Shaped or sawtoothed, so as to form a filter assembly E (as shown in Figure 9).

Please refer to shown in Fig. 10, it can be known that when the present invention is applied in practice, in a frame body 50 with a multi-layer stacked space, different filtering devices A, B, and C are respectively arranged in the spaces of each layer. Devices A, B, and C can have wavy or zigzag shapes that are bent repeatedly according to needs, so as to form a filter assembly F; using the above-mentioned combinations of the filter devices A, B, and C in different ways, the filter Components E and F have different air-permeable characteristics, so as to produce various filtering effects respectively.

Since the cross-sectional views of the filter devices described in the above-mentioned embodiments are only schematic; therefore, the cross-sectional views of the filter devices described in the above-mentioned embodiments can only be regarded as one of the references, and it does not mean that the cross-sectional views of all embodiment structures are As shown in the cross-sectional views of the above-mentioned embodiments.

Based on the above, the filtering device of the present invention and its manufacturing method can indeed prevent the surface covering part from being blocked by hot melt due to heating, so as to maintain the effect of normal air circulation efficiency, which is indeed a novel and progressive invention. Apply for an invention patent in accordance with the law.

However, the content of the above description is only a description of the preferred embodiment of the present invention, and all changes, modifications, changes or equivalent replacements extended according to the technical means and scope of the present invention should also fall into the patent application of the present invention within range.

1: The first surface coating

2, 2a, 2b: intermediate filter part

20, 20a, 20b: mesh adhesive layer

200, 201: surface adhesive layer

21, 21a, 21b: filament viscose

210: filamentous viscose

22, 22a, 22b: filter material

23, 23a, 23b: airflow gap

3: The second surface coating

4: spacer layer

5, 50: frame

X: glue spray mechanism

Y: sprinkler mechanism

Z: rolling mechanism

A, B, C: Filtration device

D, E, F: filter components

Fig. 1A is a schematic diagram of the operation flow of the present invention facing the conveying direction of the surface layer during the glue spraying process.

Figure 1B is a schematic diagram of the operation process viewed along the direction B-B in Figure 1A.

Fig. 2 is a schematic diagram of the operation flow of the present invention when arranging filter materials.

Fig. 3 is a schematic diagram of the operation flow of the present invention when spraying the surface coating.

Fig. 4 is a schematic diagram of the operation flow of the present invention during lamination processing.

Fig. 5 is a schematic cross-sectional view of the structure of the first implementation product of the present invention.

Fig. 6 is a schematic cross-sectional view of the structure of the second implementation product of the present invention.

Fig. 7 is a schematic cross-sectional view of the structure of the third implementation product of the present invention.

Fig. 8 is a schematic diagram of the first application embodiment of the present invention.

Fig. 9 is a schematic diagram of the second application embodiment of the present invention.

Fig. 10 is a schematic diagram of the third application embodiment of the present invention.

1: The first surface coating

2: Middle filter part

20: Mesh adhesive layer

200: surface adhesive layer

21: arched filament viscose

22: filter material

23: Airflow gap

3: The second surface coating

A: Filtration device

Claims (22)

A filtering device, comprising: two air-permeable first and second surface covering layers, and at least one intermediate filter part glued between the first and second surface covering layers, characterized in that: the intermediate filter part is composed of countless The filament viscose is composed of a mesh viscose layer formed by uneven and irregular interweaving, and countless filter materials evenly dispersed and filled in the net viscose layer. The two sides of the net viscose layer are respectively bonded The first and second surface coating layers make each filter material firmly adhered and clamped by the interwoven filaments of the mesh adhesive layer, and each filter material is supported by the filaments of viscose to produce Numerous densely distributed and interconnected airflow gaps. The filter device according to claim 1, wherein a multi-layer intermediate filter part is provided between the first and second surface coating layers. The filtering device according to claim 2, wherein at least one spacer layer is provided between each intermediate filtering part. The filter device according to claim 3, wherein the spacer layer has the same material as the first and second coating layers. The filter device according to claim 3, wherein the spacer layer is selected from non-woven fabric or fiber cloth capable of filtering out acid and alkali, or fiber cloth capable of filtering out microorganisms, bacteria, and viruses, or a filter membrane capable of filtering out microorganisms, bacteria, and viruses Wait for one of the structures. The filtering device according to claim 1 or 2 or 3 or 4 or 5, wherein at least one of the first and second surface coating layers and the adjacent middle filter part is provided with a surface coating adhesive layer. The filter device according to claim 3, 4 or 5, wherein at least one side of the spacer layer and the adjacent intermediate filter part is provided with a surface-coated adhesive layer. The filter device as in claim 2 or 3 or 4 or 5, wherein each intermediate filter part has different filter materials. The filter device according to claim 1 or 2 or 3 or 4 or 5, wherein the filter material is one of granular materials selected from activated carbon, potassium hydroxide, potassium carbonate, aluminum oxide or ion exchange resin. The filter device as in claim 8, wherein each of the filter materials is one of granular materials selected from activated carbon, potassium hydroxide, potassium carbonate, aluminum oxide or ion exchange resin. As the filter device of claim 2 or 3 or 4 or 5, the filter material of at least one intermediate filter part is used to filter out acidic substances, alkaline substances, volatile organic compounds or 3.5-valent benzaldehyde substances. As the filter device of claim 8, the filter material of at least one intermediate filter part is used to filter out acidic substances, alkaline substances, volatile organic compounds or 3.5-valent benzaldehyde substances. As the filter device of claim 1 or 2 or 3 or 4 or 5, wherein the first and second surface coatings are all selected from non-woven fabrics or fiber cloths that can filter out acids and alkalis or can filter out microorganisms, bacteria, and viruses Fiber cloth or a structure that can filter out microorganisms, bacteria, and virus membranes. The filter device according to claim 1 or 2 or 3 or 4 or 5, wherein the first and second surface coating layers and the mesh adhesive layer are respectively made of different materials. A filter assembly comprising: a frame; and A filter device as described in any one of Claims 1 to 14, wherein the filter device is fixed in the frame. The filter assembly according to claim 15, wherein the filter device is folded and arranged in the frame. Such as the filter assembly of claim 15, wherein the filter device is designed in one of various shapes such as bag shape, V shape, cylinder shape or box shape. A method for producing the filter device described in the preceding items, comprising: providing a first surface coating layer; spraying pre-heated and melted hot-melt adhesive in a filamentary form to form countless fine irregular intertwined The silk viscose is distributed on the first surface coating layer to form a network adhesive layer formed by interweaving and distributing filaments viscose, and one side of the network viscose layer is partially adhered to the first surface coating layer ; Then spread most of the filter materials evenly into the mesh adhesive layer, use the filament adhesive to adhere to each filter material, and fix it in the gap between each filament adhesive; Before the adhesive layer dries, a second surface covering layer is used to cover the mesh adhesive layer, and after pressing, the other side of the mesh adhesive layer is partially bonded to the second surface covering layer , so as to form an intermediate filter part between the first and second surface covering layers; after the mesh adhesive layers are completely dried, a firm filter can be formed between the first and second surface covering layers and the intermediate filter part. link and position. The method for making a filter device according to claim 18, wherein before covering the second surface layer, multiple layers of mesh adhesive layers and a plurality of filter materials can be repeatedly arranged on the first surface layer to form a multi-layered structure The middle filter part. The manufacturing method of the filter device according to claim 19, wherein at least one spacer layer is provided between the intermediate filter parts during the stacking process of the intermediate filter parts. The manufacturing method of the filter device according to claim 20, wherein in the process of stacking the spacer layers, a surface-coated adhesive layer is respectively provided between the lower part of the spacer layer and the adjacent intermediate filter parts. The manufacturing method of the filter device according to claim 18 or 19 or 20 or 21, wherein before covering the second surface coating layer, a surface coating adhesive layer is provided above the uppermost intermediate filter part.

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