KR100346087B1 - Hepa filter using multi-layered microscopic fabric by controlling the fiber orientation for allergin protection - Google Patents

Abstract

PURPOSE: A HEPA filter using multi-layered microscopic fabric by controlling the fiber orientation for allergin protection is provided. CONSTITUTION: The HEPA filter comprises a first layer(5), serving as a cover part, which performs the function of pre filter and maintains the shape of filter; a second layer(6) which filters common dust and is composed of micro fiber, inclined to an angle of 0 degree, having pores of 100 micron; a third layer(8) which filters minute dust and is composed of micro fiber, inclined to an angle of 30 degree, having pores of 10 micron; a fourth layer(10) which filters minute dust with the size below 0.3 micron or allergin and is composed of micro fiber, inclined to an angle of 60 degree, having pores of 1 micron.

Description

HEPA FILTER USING MULTI-LAYERED MICROSCOPIC FABRIC BY CONTROLLING THE FIBER ORIENTATION FOR ALLERGIN PROTECTION}

The present invention relates to a HEPA filter using a multilayer microfiber, and more particularly, to a HEPA filter capable of capturing and removing fine allergen material of 0.3 micron or less by controlling the arrangement and pore size of microfibers composed of polyester and nylon composite yarns. It is about.

In general, allergens are called allergens, and dust mites, pollen, animal hair, pigments, preservatives, smoke and tobacco smoke are known as allergens. Known as House dust mites living on dandruff that fall from human skin are more than 100 per 1 gm of dust, which can cause sensitization and cause allergic diseases. Hundreds of house dust mites are usually found in 1 gm of dust collected from. Up to 20,000 have been reported.

A filter is a device that allows air, gas, oil, etc. to pass particles of a certain size within a certain amount of time within a certain time. Especially, it creates clean air that meets the needs by removing dust or harmful substances in the air. It is called Air Filter. Types of air purification filters include deodorization filters, electrostatic filters, ozone filters, and cabin filters.

Cabin filter among the filters described above is made of two-layer structure of electret filter which is charged with activated carbon fiber and fiber and has permanent electrostatic power. It is mainly used to remove toxic gases (hydrocarbon, diesel smoke), which are harmful substances from cigarette smoke, dust, or outside the car. The electrostatic filter is a two-layer layer of a polypropylene ultra-fine fiber layer and a deodorant paper layer which have permanent electrostatic force. It does not have a separator that combines the collection and deodorization of the structure, and shows excellent performance in removing tobacco smoke and various odorous gases.

The ozone filter is simply generated by discharge or light energy in the air, has sterilization and deodorization function, decomposes into oxygen by being decomposed naturally in the air and promotes decomposition when contacted with heat, light, metal, metal oxide or alkaline solution. However, high concentrations of ozone are very harmful to humans.

However, the above-described filters have a disadvantage in that it is difficult to remove fine dust or allergen materials of less than 1 micron, and recently, a HEPA filter has been developed and widely used. HEPA filter is a filter that can remove more than 99.97% of fine particles less than 0.3 micron as fine particle number, and is widely used in industrial clean room or biological clean room for semiconductor production.

HEPA filters are used after dispersing very thin glass spun fibers of 0.3 to 0.5 microns in thickness and 2 to 3 mm in water, dehydrating them in fine mesh and drying them to form paper. However, in order to manufacture the HEPA filter as described above, it is important to blend the ultrafine glass fibers and disperse to maintain a constant void, and the production of the HEPA filter has a very expensive disadvantage because of many technical difficulties and high cost.

In addition, if the collection amount increases over time, the pressure drop of the air flow becomes very severe, which leads to enormous obstacles to the function of the filter. It has a disadvantage.

Therefore, the present invention is to solve such a conventional problem by using a microfiber consisting of a composite yarn of polyester and nylon to form a fine void portion by stacking in a multi-layer by varying the arrangement method and size and spacing of 0.3 micron The purpose is to minimize the manufacturing and maintenance costs in removing the following allergen material.

HEPA filter according to the present invention is a composite microfiber layer (Layer) and the microfiber layer comprising a polyester and nylon woven by varying the direction of the cover and the fiber to be used as a support to give the mechanical strength to achieve this object It has a function to collect and store the materials hung in the and characterized in that it consists of a trapping layer made of polyurethane foam or non-woven fabric. The HEPA filter according to the present invention is made of microfiber can be washed, the maintenance cost and manufacturing Reduce costs

The above object and various advantages of the present invention will become more apparent from the preferred embodiments of the invention described below with reference to the accompanying drawings by those skilled in the art or those skilled in the art.

1 is a cross-sectional view showing the basic structure of a multi-layer microfiber,

2a and 2b is a cross-sectional view and a front view showing a method of forming the microfibers themselves in a three-layered fabric with different fiber directions without using a collecting part to form voids, to remove fine dust or allergens.

Explanation of symbols on the main parts of the drawings

One; Cover part 2; Fine composite yarn 3; Collection layer

4; Dense microfiber 5; First layer 6; 2nd layer

7; 0 degrees 8; Third layer 9; 30 degrees

10; Fourth layer 11; 60 degrees

Hereinafter, with reference to the accompanying drawings will be described in detail a method for producing a HEPA filter made of a multi-layered microfiber with an allergen preventing fiber arrangement direction according to the invention.

1 is an exploded view showing the basic structure of a HEFA filter including a microfiber of a multilayer structure according to an embodiment of the present invention.

The first layer is a cover part 1 used to support mechanical strength, and serves as a pre-filter and a function of maintaining the shape of the filter as a whole.

The second layer is located on the first side of the cover part 1, and is a fine composite yarn composed of polyester and nylon (2), which is a microfiber having voids of about 10 microns. By running, each fiber has a high charge density, which facilitates the collection and removal of common dust.

The third layer is located on the opposite side of the cover part 1 around the fine composite yarn 2 and is a collecting layer 3 made of a nonwoven fabric or a porous polyurethane foam material. It is placed between the microfiber layers for seizing and capturing. The fourth layer is located on the opposite side of the fine composite yarn 2 around the collecting layer 3 and is manufactured by applying a high voltage as described above to the microfiber layer 4 having a very dense void of about 1 micron. Each fiber has a high charge density, facilitating the capture and removal of fine dust and allergen materials of 0.3 microns or less.

Figure 2a and 2b is another embodiment of the present invention is a microfiber itself without the use of a collecting part triangular weave by different fiber directions to form a void, showing a method for removing fine dust and allergens, etc. It is a cross section.

Hereinafter, each function will be described in detail. In FIG. 2A, the first layer 5 is a cover part used to support mechanical strength, and maintains the shape of the filter as a whole. Doing

The second layer 6 is configured by arranging microfiber bundles having voids of about 100 microns in the direction of 0 degrees (7) as shown in FIG. 2b to filter general dust.

The third layer 8 is formed by arranging microfiber bundles having pores of about 10 microns in the direction of 30 degrees (9) as shown in FIG. 2B to remove and collect fine dust in the voids between the second layer.

The fourth layer 10 is formed by arranging microfiber bundles having voids of about 1 micron in the direction of 60 degrees (11) as shown in FIG. 2B, and fine dust of 0.3 microns or less in the gap between the third layer 8 I remove and collect allergens.

As described above, according to the present invention, the HEPA filter, in which the direction of the microfiber bundle and the size of the pores are adjusted, is easy to manufacture while simultaneously removing and collecting fine dust and allergen substances of 0.3 microns or less, and washing with water after a certain period of time. This can be reusable and can be used semi-permanently.

Claims (2)

A cover portion for maintaining the shape of the (correction) filter and serving as a prefilter; The pores have a size of 10 microns or less and a first filtration layer made of a microporous pore fabric that is a composite of polyester and nylon; The voids include a second filtration layer that facilitates the collection and removal of fine dust and allergen materials of 0.3 microns or less; Located between the first and second filtration layers, the collecting layer is made of a non-woven fabric or a porous polyurethane foam material placed between the microporous fabrics for maximum collection of fine dust or allergens. Anti-allergen multilayer microfiber HEPA filter comprising a. (delete)