KR101887162B1 - Filterized textile for toxic agent protection, manufacturing method therefor and special clothes thereby - Google Patents

Abstract

The present invention relates to a filtered fabric for protection from a toxic agent, which is composed of a first layer, a second layer and a third layer made of a breathable material, a second sorbent layer of an activated carbon component provided between the layers and activated carbon beads. The present invention can filter toxic substances in multiple stages through the activated carbon beads and sorbent layers.

Description

FIELD OF THE INVENTION The present invention relates to a filter for protecting a toxic substance,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filter-ridged fabric for protecting a toxic substance, a manufacturing method therefor, and a special wear therefor. More specifically, the present invention relates to a filter-ridden fabric for protecting a toxic substance, , A manufacturing method therefor, and a special clothes therefor.

Generally, as the development and possession of weapons of mass destruction are increasing in modern warfare, products that can protect human body and equipment are required. Among the weapons of mass destruction, chemical weapons are inexpensive to manufacture, and can be mass-produced in a short period of time with a small-sized manufacturing facility, are relatively easy to handle and are highly threatened.

Accordingly, there is a demand for various protection equipments that can protect the human body, for example, CBR protective clothing and respirator used for chemical, bacteriological, radiological, or nuclear / nuclear or nuclear. The types of NBC protective clothing can be divided into breathable protective clothing and non-protective protective clothing.

In the case of a non-inflatable protective suit, it is a protective suit that blocks external fluids from entering and exiting, but it has a fatal disadvantage that it is difficult to release the water vapor and heat released from the body to the outside.

On the other hand, since the breathable protective garment has a certain degree of fluid flow, unlike the non-infective protective garment, it is considered that the toxic substance directly affects the human body, so that the fabric containing the activated carbon capable of adsorbing and filtering toxic substances, It adopts a dual structure with applied performance fabric.

Prior art of such a breathable protective garment is disclosed in Korean Patent No. 10-1041415 entitled " Fabric for improved chemical protection of flexibility ", Korean Patent No. 10-1146573 entitled " Adsorption Filtering Material ", Korean Patent No. 10-1406311 &Quot; NBR Protective Utilization Fabric < / RTI > and U.S. Patent No. 10-1139300, "Adsorbent Filter Material for Fabricating NBR Protective Apparatus with Improved Wearing Physiological Function"

According to this prior art, in order to protect the human body from toxic substances in the form of fluids consisting of gas and / or liquid, it is possible to protect the endothelium by using a cloth in which latex rubber or the like is thinly coated on a polyester- An outer shell that serves to primarily block toxic substances in the solid state, and an inner skin that can be removed by adsorbing toxic substances as the surface is treated with activated carbon using an adhesive.

In particular, the above-described prior arts adsorb and filter toxic substances by providing a sorbent formed in the form of porous beads having fine pores between the inner and outer shells.

However, in the prior art (Prior Art 1) as described above, there is a problem that a gap is formed between the beads because the sorbent has the form of a bead, so that a part of the toxic substance penetrates through the gap without being filtered.

In addition, since the sorbent agent is provided between the shell and the inner skin in the form of beads as described above, only the upper and lower portions of the bead sorbent are attached to the outer shell and the inner skin, so that the beads are detached from the outer shell and the inner skin during washing There is a possibility that the adsorption performance of the toxic substance may be remarkably decreased when washing is performed several times.

In addition, since the adsorbent is formed into a spherical shape, the air can not substantially completely face the air entering the shell, so that the specific surface area may be substantially reduced.

Therefore, in order to solve the above-mentioned problem, recently, a product using a powdered activated carbon, which is not a bead type sorptive agent, has recently been introduced in Korea (Korea). Such a product (prior art 2) is merely sprayed on the same fabric as the nonwoven fabric and then pressurized, so that there is a problem that a large amount of activated carbon is separated from the fabric during the post-wearing operation. In addition, There is a problem that reuse is impossible.

These products can not exhibit the function of adsorbing activated carbon as activated carbon is buried in the adhesive when the adhesive is applied to the fabric by using an adhesive because the activated carbon is in the form of powder. Especially, since the adhesive shields the fabric and the ventilation of the fabric is lost, It was simply sprayed on the fabric with a lot of activated carbon.

KR, B, 10-1041415, (2011.06.08) KR, B, 10-1146573, (2012.05.09) KR, B, 10-1406311, (2014.06.03) KR, B, 10-1139300, (Apr. 17, 2012)

Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made in order to solve the above problems, and it is an object of the present invention to protect activated carbon from falling off during washing and to adsorb toxic substances in multi- Which is capable of significantly expanding the specific surface area for the sorption of toxic substances, and a method for manufacturing the same, and a special clothing therefor.

In order to accomplish the above-mentioned object, the present invention provides a fabric comprising: a first layer made of a breathable material; A second layer disposed at a lower portion of the first layer, the second layer being made of a breathable material; A plurality of activated carbon beads fixed between the first layer and the second layer and sorbing toxic substances from air permeated through the first layer; An adhesive provided on at least one of a lower surface of the first layer and an upper surface of the second layer on which the activated carbon beads are fixed to adhere and fix the activated carbon beads; And a second sorption layer for sorbing the toxic substance from air permeated through the second layer through the gap between the activated carbon beads fixed with the adhesive.

The second sorption layer may include a third layer formed integrally with the lower surface of the second layer to absorb the toxic substance transmitted through the second layer or formed of a breathable material superimposed on the lower portion of the second layer, And a plurality of fine particles adhered to the powder activated carbon, and a plurality of micropores formed on the matrix, the micropores having a bubble-like shape in the matrix as they are extracted from the matrix, which is cured and composed of a powdery activated carbon, a solvent and a matrix of viscous thermosetting or thermoplastic material, And the second layer or the third layer is formed in a film form on the second layer or the third layer by a sorbable coating agent composed of a soluble particulate filler that provides pores composed of : Separated spots or linear shapes), so that the air can be communicated through the clearance while the toxic substances are sorbed. .

The second sorption layer is formed of a gel or a colloid mixed with 24 to 75 parts by weight of a matrix, 106 to 205 parts by weight of a solvent and 0.2 to 57 parts by weight of a particulate filter with respect to 100 parts by weight of the activated carbon, It is possible to secure the pores even when the film is formed into a film in accordance with the post-curing, so that toxic substances can be sorbed.

The second sorption layer is provided on the surface (upper surface) of the third layer facing the second layer in the form of a film, and the adhesive is provided on the upper surface so that the upper surface adheres to the lower surface of the second layer .

The second sorption layer is integrally provided on a lower surface of the second layer facing the third layer, and is attached and fixed to the third layer by the adhesive.

The present invention is characterized in that the sorptive coating agent is integrally provided on the first layer in the form of a film as it is applied in the form of a thick film while being separated from the lower surface of the first layer and then cured, And a first sorbent layer for sorbing the toxic substance from the permeated air.

The first sorption layer may be composed of spots whose spots and sizes of the second sorption layer are different from each other.

The first sorption layer and the second sorption layer need to be formed in such a manner as to be deviated from each other.

The first sorption layer may be fixed to the top of the activated carbon bead through the adhesive as the adhesive is applied to the surface.

The third layer may further include a third sorbent layer formed on the lower surface of the second sorbent layer, the third sorbent layer being formed of the sorbable coating agent so as to form a film in a form of a thick film, There is a need.

The third sorption layer is preferably formed on the lower surface of the third layer with spots having the same or different diameters as the second sorption layer.

The third sorption layer needs to be formed on the lower surface of the third layer in a form staggered with the second sorption layer.

The present invention may further comprise: a fourth layer of a breathable material provided below the third layer; And a fourth sorbent layer formed of the sorbable coating agent and formed in a film shape as a result of being applied on the upper surface of the fourth layer in the form of a thick film and cured.

The present invention may further include a shield provided at a lower portion of the third layer or the fourth layer and shielding a lower portion of the third layer or the fourth layer and made of a breathable material.

The shield may be attached and fixed to the third layer or the fourth layer by the adhesive.

The above-described filter-ridged fabrics for protecting toxic substances can be manufactured as special-purpose clothing for protecting toxic substances.

The filter-wound fabric for protecting the toxic substance is shielded by an upper part of a skin made of a breathable material and is shielded by an inner skin made of a breathable material so as to be used as an intermediate fat to filter toxic substances between the outer skin and the inner skin .

Meanwhile, the manufacturing method of the present invention includes: a layer preparation step of preparing a first layer, a second layer and a third layer made of a breathable material; A matrix of a thermosetting or thermoplastic material of powdered activated carbon and a solvent and a viscous material and a plurality of fine particles adhered to the activated carbon, A step of preparing a coating agent composition for producing a water-soluble coating agent composition comprising a particulate filler; The sorptive coating agent is applied to the first layer, the lower surface of the second layer, or the upper surface of the third layer in the form of a thick film having a discontinuous shape (e.g., a speckled shape or a linear shape) A coating agent application step; Forming a first sorption layer or a second sorption layer that forms a film form by curing the applied coating agent to sorb the toxic substance to the first layer, the second layer, or the third layer; The fine particle filler consisting of a plurality of fine particles is extracted from the first sorption layer or the second sorption layer, and pores formed by the extracted fine particle filler in the form of bubble-like cavities are formed in the first sorption layer or the second sorption layer Forming step; Applying a first adhesive to the second layer or the third layer and applying an adhesive to the second sorption layer formed with the pores; A second adhesive applying step of applying the adhesive to the surface of the second layer; A lower bead bottom fixing step of fixing a lower end of an activated carbon bead having a granular or spherical shape to a surface (upper surface) of the second layer coated with the secondary adhesive; Bonding the second layer and the third layer through the first adhesive applied to the second sorption layer and joining them together; And an upper shielding step of shielding the upper part of the second layer by stacking the first layer on the second layer where the third layer is laminated on the lower side and the lower end of the activated carbon bead is fixed on the upper surface do.

The laminating step compresses the third layer in a laminated state with the second layer to attach the third layer and the second layer through the adhesive applied to the second sorption layer.

In the step of preparing the coating agent, a solvent, an activated carbon and a particulate filler are added to the matrix to prepare a mixture; And a stirring step of stirring and dispersing the mixture.

The mixture is prepared by mixing 24 to 75 parts by weight of a matrix, 106 to 205 parts by weight of a solvent and 0.2 to 57 parts by weight of a particulate filter with respect to 100 parts by weight of the activated carbon to prepare the mixture in gel or colloid form.

The third aspect of the present invention is a coating method comprising: a third adhesive applying step provided between the lapping step and the upper shielding step and applying the adhesive to the lower surface of the first layer facing the second layer; And a bead upper fixing step of bonding and fixing the upper end of the activated carbon bead to the lower surface of the first layer through the tertiary adhesive.

Wherein the coating agent application step comprises: applying a primary coating agent on the lower surface of the first layer in the form of a thick film having a discontinuous shape; And applying the sorptive coating agent to the lower surface of the second layer or the upper surface of the third layer in the form of a thick film having a discontinuous shape, And a second coating agent application step of applying the coating agent in a smaller size.

The present invention further provides a method of manufacturing a semiconductor device, comprising: an additional adhesive applying step of applying the adhesive to the first sorption layer formed in a film form on the lower surface of the first layer through the sorption layer forming step; And a bead upper fixing step of fixing the upper end of the activated carbon bead whose lower end is fixed to the second layer to the adhesive of the first sorption layer.

The bead top fixing step may include a layer deposition step of layering the first layer having the first sorption layer coated with the adhesive on the second layer to which the activated carbon beads are attached in a laminated state; A pressing step of pressing at least one of the first layer and the second layer, And an adhesive curing step of curing the adhesive applied to the first sorption layer to fix the top of the activated carbon beads to the surface of the first sorption layer.

Wherein the step of fixing the bottom of the bead includes a step of spraying the active carbon beads onto the upper surface of the second layer coated with the adhesive; A bead pressing step of pressing the upper surface of the second layer on which the activated carbon beads are spread to press the activated carbon beads; An adhesive curing step of curing the adhesive applied to the second layer to fix the lower end of the activated carbon bead to the second layer; And removing the activated carbon beads not attached to the adhesive from the second layer by vibrating the second layer or applying vacuum pressure to the upper surface of the second layer.

The manufacturing method as described above can be used in the manufacture of special protective clothing for toxic substances.

On the other hand, the spots of the first to fourth sorption layers described above may be formed in the shape of a circle, an ellipse or a polygon. Then, the third and fourth sorption layers are formed in the third layer or the fourth layer in the same manner as the above-described first and second sorption layers. In addition, the third layer or the fourth layer may be laminated to other layers in the same manner as described above to form a monolith.

The first to fourth sorption layers are formed on the surfaces of the first layer to the fourth layer in a form of a thick film spaced apart from each other in a speck or linear shape as described above and are then cured, .

As described above, since the first to fourth sorption layers containing the powdered activated carbon are formed on the first to fourth layers in a plane, the filter-woven fabric for protecting the toxic substance of the present invention as described above has an expanded specific surface area In addition, since the activated carbon beads are separately provided, not only the sorption performance of the first to fourth sorption layers can be compensated, but also the toxic substances can be filtered and purified in multiple stages, and the first to fifth When the layer is made of breathable material and air is ventilated, it is possible to improve the feeling of wearing when it is manufactured as special protective clothing for toxic substances.

Particularly, since the first to fourth sorption layers are formed in the form of films on the surfaces of the first to fourth layers due to the material properties of the sorption film forming agent and the composition ratio and physical properties of the components mixed in the sorption film forming agent, Accordingly, not only the loss of activated carbon during washing can be suppressed as much as possible, but also the wearing feeling can be improved by the elastic force of the matrix. A soluble particulate filler composed of a plurality of fine particles is extracted from the matrix, Since the micropores formed by the cavities are provided, the toxic substances can be guided to the activated carbon through the pores communicating with the activated carbon. Accordingly, the surface of the activated carbon is prevented from being shielded with the matrix to the utmost, .

Since the matrix is made of a material having elasticity, hydrophilicity, chemical resistance, heat resistance and moisture resistance, it is possible to improve the feeling of wearing as described above by providing an elastic force, to ensure solubility by hydrophilicity, And durability against heat by moisture resistance can be improved as well as the water resistance can be improved and the microporous pores (hereinafter referred to as " pores ") can be added to the matrix and the film- Pore) can be provided, and the toxic substance can be supplied to the activated carbon contained in the matrix, that is, the activated carbon contained in the sorbent layer together with the pores, so that the sorption performance can be greatly improved.

In addition, since activated carbon has a size of 0.1 to 300 탆 and has an excellent effective area, it is possible to improve the sorption performance of the activated carbon and to improve the printing property of the coating film by adding additives, The physical properties can also be improved.

In addition, when the first to fourth sorption layers are spaced apart from each other in the first to fourth layers, the rigidity of the first to fourth layers is partially weakened, so that the flexibility of the filter- .

In addition, since the first sorption layer is formed into a film form having a speckle or a linear shape on the first layer, the toxic substance passing through the first layer can be substantially dispersed and provided to the activated carbon bead, Not only the toxic substances can be sorbed but also the first and second sorption layers are formed in a film form on the first to fourth layers with a speck or a linear pattern and spaced apart to form air, It can also communicate.

Since the spots of the first to fourth sorption layers are formed in the shape of a circle, an ellipse or a polygon (for example, triangular to octagonal), the pattern on the surface can be easily realized and the first sorbent layer is smaller Since the first and second layers are formed with a fine diameter, the air passing through the first layer can be easily dispersed to be supplied to the activated carbon beads. In addition, since the first and second layers are formed in such a manner that the first and second layers are shifted, The toxic substance can be easily adsorbed from the air flowing through the clearance.

Further, when the third or fourth sorbent layer is provided, it is possible to further improve filtration performance by further filtering, and a second sorbent layer may be provided on the lower surface of the second layer, And the third and fourth sorbent layers on the lower surface, both surfaces of the breathable fabric can be utilized as a filter.

Further, when the shield is made of knit or tricot having stretchability, it is possible to improve the feeling of wearing when worn.

Meanwhile, in the manufacturing method according to the present invention, the adhesive layer is applied to the first sorption layer, the second sorption layer or the second layer, and the sorption layer or the activated carbon beads are attached through the adhesive, so that the activated carbon beads are firmly fixed between the members, The second sorption layer can be firmly fixed to the second layer or the third layer.

The activated carbon beads can be adhered firmly by pressing the activated carbon beads after spraying the active carbon beads in a state in which the adhesive of the second layer is melted. The activated carbon beads can be firmly adhered, the second layer can be vibrated after the activated carbon beads are pressurized, Thereby removing unattached activated carbon beads from the activated carbon beads sprayed on the second layer, so that the unattached activated carbon beads can be recovered again.

Alternatively, the second layer may be reversed and then pressed against the activated carbon beads to fix the activated carbon beads to the second layer, so that the activated carbon beads can be easily fixed to the second layer, the adhesive applied to the first sorbent is melted, The activated carbon beads can be firmly fixed to the first sorbent agent by melting the adhesive applied to the second sorbent layer and the second sorbent layer is melted to the lower surface of the second layer or the upper surface of the third layer The second sorption layer can be fixed firmly to the second layer or the third layer. In addition, since the first to third layers are effectively multi-layered by this process, It can be made like a sheet of cloth.

On the other hand, when the first sorption layer is omitted, the toxic substance is adsorbed while the activated carbon beads are fixed to the first layer and the second layer through the adhesive, and a part of the toxic substance, which has permeated the second layer, Layer to the fourth sorbent layer is adsorbed, so that not only the toxic substances that the activated carbon beads can not adsorb can be adsorbed, but when at least one of the second to fourth sorbent layers is constituted, The adsorption performance of the portion can be compensated for by the second to fourth sorption layers and the overall weight of the fabric can be reduced.

On the other hand, the particulate filler can be easily removed by extracting and removing the particulate filler by bringing the filter layer into contact with the reactive agent chemically reacting with the particulate filler.

On the other hand, since the special clothes according to the present invention use the filter-ridged fabrics for protecting toxic substances manufactured as described above, not only the filtering performance is improved but also the washing durability is improved.

1 is a longitudinal sectional view of a fabric according to the prior art;
FIGS. 2 to 5 are longitudinal sectional views of the fabric according to the first to fourth embodiments of the present invention; FIG.
FIG. 6 is a photograph of the actual fabric shown in FIG. 2; FIG.
FIG. 7 is a conceptual view conceptually showing the sorption layer shown in FIG. 2; FIG.
8 is a longitudinal sectional view of a special woven fabric according to an embodiment of the present invention;
9 to 11 are graphs showing experimental results of a fabric according to an embodiment of the present invention;
12 is a longitudinal sectional view of a fabric according to a fifth embodiment of the present invention;
13 is a longitudinal sectional view of a fabric according to a sixth embodiment of the present invention;
14 is a longitudinal sectional view of a fabric according to a seventh embodiment of the present invention;
FIG. 15 is a longitudinal sectional view conceptually showing the inner structure of the fabric shown in FIG. 2; FIG.
FIG. 16 is an enlarged sectional view of the activated carbon shown in FIG. 15; FIG.
17 is a longitudinal sectional view showing the pores of the fabric shown in Fig. 2; And
18 is an experimental result table of an experiment of the embodiment of the present invention.

Hereinafter, a filter-raid fabric for protecting a toxic substance according to an embodiment of the present invention, a method of manufacturing the same, and a special clothing therefor will be described with reference to FIGS. 2 to 18.

As shown in FIG. 2, the filter-ridden fabric for protecting a toxic substance according to an embodiment of the present invention includes a first layer L1, a first sorbent layer F1, an activated carbon bead B, a second layer L2 ), A third layer (L3), and a second sorption layer (F2).

The first layer (L1), the second layer (L2), and the third layer (L3) are made of a material capable of air communication. In particular, it is preferable that the first layer L1, the second layer L2, and the third layer L3 are made of a fabricated material so as to be seen through the opposite side as shown in FIG. Such a fabric may be composed of, for example, a knit or a tricot, but may also be composed of a nonwoven fabric as shown in Fig. At this time, the nonwoven fabric may be composed of a hot-melt nonwoven fabric coated with a thin-film hot-melt for easy molding of the first to fourth sorption layers F1 to F4 described later. The hot-melt non-woven fabric may optionally be pretreated to melt the surface hot melt by heat before forming the first to fourth sorption layers F1 to F4 (optional). That is, the hot-melt nonwoven fabric serves as a primer for smooth molding (coating) of the first to fourth sorption layers F1 to F4 by providing fine unevenness by hot melt of the surface.

The first sorption layer F1 is formed on the surface (lower surface) of the first layer L1 by the sorption film forming agent. As shown in FIGS. 15 and 16, the sorption film forming agent is composed of a paint-like material in which the powdery activated carbon 11, the matrix (Matrix) 12, the solvent S and the particulate filler A are mixed.

The matrix 12 is composed of a gel or colloid of a thermosetting or thermoplastic material which is mixed with the activated carbon 11 and solidifies in a liquid phase and solidifies to provide a sorption layer F1 to F4 in a sheet form as described later . That is, the matrix 12 is formed into a film on the surfaces of the first to fourth layers L1 to L4 as described below as it is applied as a thin film and cured.

The matrix 12 is excellent in adhesion to fibers, for example, even under low-temperature curing conditions, and is excellent in adhesion to fibers. The matrix 12 imparts elasticity to the sorbent layer to improve the durability of the sorbent layer according to the embodiment of the present invention Environmentally friendly aqueous urethane may be used alone or in combination with an acrylic or melamine resin excellent in moisture resistance, hardness and moldability depending on the required properties, and epoxy, silicone, phenol and polyamic acid having adhesiveness, strength, chemical resistance and heat resistance Etc. may be used alone or in combination. The matrix 12 binds the activated carbon 11 during curing to prevent the active carbon 11 from flowing. That is, the matrix 12 serves as a binder.

Activated carbon 11 is mixed with a matrix 12 of viscous nature as shown in Fig. 15 and then bound by the curing of the matrix 12. 16 and 17, the activated carbon 11 sorb toxic substances through pores (not shown) formed therein and pores H described later, even when they are mixed in the matrix 12. That is, the activated carbon 11 sorb toxic chemical substances such as chemical agents, especially liquid or vaporous toxic substances, which are harmful to human body, and filter them. Activated carbon (11) is composed of powder so as to be easily mixed with liquid matrix (12).

Activated carbon 11 is, for example, graphene (graphene), graphite, metal oxides (Al2O3, Fe ₂ O _3, SiO _2, MgO, CaO, TiO2, ZnO, V ₂ O ₅₎ of single or two or more of a mixture of Can be used. The activated carbon 11 may contain Cu, Ag, Fe, and Ce so as to enhance the selective adsorption performance depending on the kind of the toxic substance. The activated carbon 11 is preferably formed with a particle size (particle size) of 0.1 mu m to 300 mu m, most preferably 3 mu m to 20 mu m. The smaller the particle size of the activated carbon is, the better the dispersibility and the effective area for adsorption when mixed with the matrix (12). It is preferable that the activated carbon 11 be composed of, for example, a hydrophilic coconut system among various types.

The solvent 12 is mixed into the matrix 11 as shown in Fig. 15, preventing the matrix 11 from hardening too quickly. The solvent (S) may be composed, for example, of at least one material which is compatible with other components and has physical properties suitable for curing and working conditions. That is, the solvent 12 is composed of a material that is easy to be mixed with the matrix 11 or the flow control additive to be described later. In particular, the solvent 12 is preferably composed of a material which is evaporated or dried or dissipated by heat during a heat treatment process, which will be described later. The solvent (S) is preferably composed of a substance which is compatible with the matrix (12) and remains for a time required for workability at the time of mixing. The solvent (S) may be, for example, at least one of alcohol, water, ethylene glycol, butyl carbitol, butyl cellosolve, terpineol. That is, the solvent (S) can be composed of the listed materials singly or in combination.

The solvent S is evaporated or dried or dissipated upon curing of the matrix 12 to provide fine covalent pores, such as pores, in the cured matrix 12. Accordingly, the matrix 12 can supply toxic substances to the activated carbon 11 through the pores.

The particulate filler A is composed of a plurality of fine particles and is mixed into the matrix 12 together with the activated carbon 11 and the solvent S as shown in Fig. The particulate filler (A) is preferably made of a material with high solubility so that it can be easily mixed with the matrix (12). The particulate filler A is adhered to the outer circumferential surface of the activated carbon 11 as shown in FIG. 16 (a) and is extracted and removed from the matrix 12 after the matrix 12 is cured. At this time, the particulate filler A provides a pore H made of a bubble-like cavity in the outer peripheral surface of the activated carbon 11 as shown in FIG. 16 (b). That is, the pores H form minute pores in the form of bubbles as shown in FIG. 17 inside the matrix 12 due to the vacancy of the particulate filler A as the particulate filler A is removed, And provides a passage for guiding the toxic substance to the outer circumferential surface of the activated carbon 11 by forming fine pores. Therefore, even when the activated carbon 11 is mixed with the matrix 12, the adsorption area where the pore H is in contact with the toxic substance, that is, the specific surface area (exposed area) is expanded,

The particulate filler A is a material composed of a liquid or liquefied gas having a particle size that is the same as or larger than that of the solvent (S), or a particle size (larger or smaller) than that of the solvent (S). Such a particulate filler A may be extracted from the matrix 12 as the solvent S evaporates or dries or dissipates during curing of the matrix 12. Alternatively, the particulate filler (A) may be extracted in a separate extraction solvent, i. E., In the matrix (12) via a chemical reaction with the reactant in contact with the reactant. The particulate filler (A) may be composed of at least one of ammonia, Freon or chlorine, nitrogen, and carbon dioxide, for example. That is, the particulate filler (A) may be composed of a liquid and / or vapor phase material. The reactant may be composed of a degassing agent or defoaming agent for extracting the reactants through chemical reaction with ammonia or freon or chlorine, nitrogen, or carbon dioxide.

Here, the above-mentioned pores H are formed by the cavities of the particulate filler A composed of fine particles, and thus are formed to have a size allowing permeation of gas such as air while preventing water from permeating into the hardened matrix 12 . Therefore, the pores H guide the toxic substance in the form of gas to the activated carbon 11. However, the pores (H) can guide the liquid toxic substances in vapor form to the activated carbon (11).

In conclusion, the particulate filler A is composed of fine particles of a size sufficient to provide micropores capable of providing micropores capable of permeating only air, and is removed from the cured matrix 12, Forming material that provides pores. 17, when the matrix 12 is formed as a sheet in the form of a film as shown in Fig. 17 as a result of being coated with a thin film and then cured, the fine pores and the cavities (micropores) due to the particulate filler A and the solvent S The air permeability is secured.

On the other hand, when the particulate filler (A) is not mixed with the matrix (12), the activated carbon (11) is shielded by the matrix (12) on its outer circumferential surface, and only a part thereof is opened by the pores of the solvent (S). However, when the particulate filler A is mixed with the matrix 12 and then removed, the activated carbon 11 is formed in the outer circumferential surface as shown in FIG. 17, S) is expanded rather than mixed. Therefore, it is highly desirable that the particulate filler (A) is mixed with the matrix (12) in order to improve the sorbing performance of the activated carbon (11).

On the other hand, the above-mentioned sorptive coating agent is mixed with 24 to 75 parts by weight of the matrix 12 to 100 parts by weight of the activated carbon 11. The solvent (S) is mixed in an amount of 106 to 205 parts by weight based on 100 parts by weight of the activated carbon (11). The particulate filler (A) is mixed in an amount of 0.2 to 57 parts by weight based on 100 parts by weight of the activated carbon (11). To this end, the sorption film agent comprises about 5 to 70 wt% of activated carbon (11), about 5 to 30 wt% of matrix (12), about 0.1 to 20 wt% of particulate filler (A) . At this time, the solvent (S) is preferably composed of about 37 wt% to 72 wt% (the mixing ratio is an optimum mixing ratio as described later - see below).

If the content of the activated carbon 11 is less than 5 wt%, the desired adsorption capacity can not be expected. If the content is more than 70 wt%, the printability is deteriorated and the washing durability is decreased. When the content of the matrix 12 is less than 5 wt%, there is a problem in washing durability due to a decrease in adhesion with the fabric, and when the content exceeds 30 wt%, the specific surface area and active site of the activated carbon 11 are affected, , It is preferable that they are mixed in an amount of 5 to 30 wt%. When the content of the particulate filler (A) is less than 0.1 wt%, the desired pores (H) can not be expected. When the content exceeds 20 wt%, the viscosity of the matrix (12) Solvent (S) accelerates the curing rate of the matrix (12) too fast when it is less than 37 wt% and excessively extends the curing rate of the matrix (12) when it exceeds 72 wt%.

On the other hand, the sorptive film forming agent constituted as described above may further include a flow control additive. Such flow control additives may comprise, for example, surfactants (including negative, positive, neutral ions). The flow control additive improves the printability of a water-soluble film-forming agent prepared from a paint such as ink or paint, and controls physical properties such as dispersibility and stability. In particular, the flow control additive improves the dispersion characteristics of the activated carbon 11 and adjusts the viscosity and fluidity of the matrix 12 to provide stability during storage, smooth operation and printing at the time of coating or coating, Thereby uniformly maintaining the surface properties of the substrate.

Here, it is preferable that the flow control agent is composed of about 0.035 wt% to 17.5 wt% so as to be mixed with, for example, 0.1 to 50 parts by weight of 100 parts by weight of activated carbon (11). If the content of the additive is less than 0.035 wt%, the thixotropy of the above-mentioned sorptive coating agent is high and smooth printing is impossible. If the content exceeds 17.5 wt%, the thixotropy is lowered, The outer peripheral surface of the matrix 12 is shielded by the matrix 12, and the adsorption performance is deteriorated.

The sorption film forming agent thus constituted is prepared by mixing the solvent (S), the activated carbon (11) and the particulate filler (A) into the matrix 12 by stirring and mixing them to form a liquid coating such as gel or colloid . At this time, the sorptive filler may be mixed with the flow control additive described above. The sorption film forming agent is applied to the fabric T of the same material as the first layer L1 as shown in Fig. 15 and then cured to provide the sorption layer F in the form of a film. That is, the sorptive coating agent provides the fabric T having the sorption layer F.

The inventors of the present invention made experimental specimens using the fabric T, that is, the fabric T on which the sorption layer F is coated, and then experimented as follows. At this time, as shown in FIG. 18, the specimens were tested in the form of "Experimental Examples 1 to 15" by a sorption film forming agent having various composition ratios, and then tested by measuring the adsorption capacity before and after washing. The products of prior art 1 to which bead type activated carbon mentioned in the prior art was applied and the products of prior art 2 to which activated carbon powder was simply sprayed were tested together as a comparative example. At this time, each fabric was not able to use the actual chemical agent, and the protective performance was evaluated by liquid phase test using a similar agent having similar molecular structure and properties. For example, the analogous agents used were thiophenol, which contains dimethyl (S) methyl (DMP) containing phosphorus (P), which is a similar product of Soman (GD), and sulfur (S), similar to Mustard (HD). In the experiment, each fabric (sorbent specimen) was exposed to a similar agent (liquid sample) (for example, immersion or spraying), adsorbed toxic substances for a predetermined period of time, and the adsorption performance was measured in units of time. Subsequently, each fabric was analyzed by GC / UV / Vis spectroscopy, and the adsorption capacity (sorption capacity) of the sorption layer was calculated by calculating the residual concentration by substituting the calibration data on the basis of the analysis data.

In the measurement of the washing performance, a specific detergent was sufficiently immersed in water of 32 to 43 ° C together with 45 kg of each fabric (laundry), washed first for 4 to 6 minutes, and then washed again for 2 minutes in the same manner , Followed by first and second rinsing for 2 minutes by immersing in water at 32 to 34 ° C, followed by second and third rinsing again in the same manner, followed by dehydration for 3 to 5 minutes and drying at 19 ° C for 35 to 50 minutes The adsorption capacity after washing was measured.

As a result of the measurement, as shown in FIG. 18, the washing performance in Experimental Example 1 was excellent, but the adsorption performance was not exhibited due to the insufficient amount of activated carbon 11 mixed before and after washing, It was not possible to sufficiently form the thickness of the adsorption layer and also to decrease washing resistance. In Experimental Example 3, padding H was formed on the outer peripheral surface of activated carbon 11, The specific surface area of the activated carbon 11 was not maximally ensured, and the adsorption performance was deteriorated. In Experimental Example 4, the ratio of the matrix 12 to the activated carbon 11 was inadequate and the durability of the washing was excellent. However, the adsorption performance was insufficient due to the lack of the amount of the activated carbon 11, and the experimental Examples 5 and 6 influenced the washing durability The content of the matrix 12 was sufficient to ensure washing resistance, but the ratio of the activated carbon 11 to the particulate filler A was inadequate, causing a problem of printability. The printing performance and the adsorption performance were improved by fixing the content of the matrix 12 ensuring the durability of washing while changing the composition of the activated carbon 11 and the particulate filler A through Example 10 in Experimental Example 7, The adsorption performance before and after washing by 100,000 exhibited the desired adsorption capacity (comparable to prior art 1). In the experimental examples 11 and 13 in which the matrix 12 was excessively reduced in comparison with the content of the activated carbon 11 for securing additional adsorption performance, the adsorption performance tended to be different but the washing durability tended to be lowered. In Experimental Example 12 The mixing ratio of the activated carbon 11, the matrix 12 and the particulate filler A was optimized to exhibit an ideal adsorption capacity (superior to Prior Art 1) before and after washing.

Here, Experimental Example 12 is smaller in specific surface area than Prior Art 1 of the comparative example as shown in Fig. 18 but has excellent adsorption performance. The reason for this is as follows. In the case of Prior Art 1, since the activated carbon beads are formed into a spherical shape, and the specific surface area is wide, the adsorbing performance is thought to be smaller than the specific surface area because the toxic substance passes through the outer peripheral surface of the activated carbon bead due to the spherical shape characteristic . On the other hand, Experimental Example 12 is considered to be superior in surface adsorption performance to Prior Art 1 even though it has a small specific surface area because it faces directly with toxic substances as it is formed into a surface.

On the other hand, in the case of Prior Art 2, although the adsorption capacity before washing was excellent, it was confirmed that the adsorption performance was lost due to removal of all the activated carbon during washing.

As a result, when the activated carbon 11, the matrix 12 and the particulate filler A are mixed with each other at the optimum ratio as described above through the above experimental results, ≪ RTI ID = 0.0 > performance. ≪ / RTI > Thus, the inventors of the present invention were able to find the optimum mixing ratio as described above through the above-mentioned experiments.

On the other hand, in the case of Experimental Example 12, pores H are formed on the outer peripheral surface of the activated carbon 11 of the sorption layer by the particulate filler A extracted after mixing with the sorption film forming agent, It is considered that the adsorption performance is greatly improved because the surface area is maximized and the sorption layer provides a specific surface area different from the activated carbon beads (B). Accordingly, it is considered that the adsorption performance will be further enhanced when a plurality of the sorption layers are constituted. In addition, since the adsorption performance is superior to that of the conventional product, the size of the activated carbon bead (B) can be reduced, and thus the overall weight of the fabric can be reduced.

On the other hand, in the above-described first sorption layer F1, the sorptive coating material prepared as described above is densely and uniformly spaced on the lower surface of the first layer L1 as shown in FIG. 2, And is integrally provided in the first layer (L1) in the form of a film as it is cured. This first sorption layer F1 is applied in the form of a thick film through a conventional printing machine such as screen printing or gravure printing or an ink jet or 3D printer (the later-described sorption layers F2 to F4 are also the same). The first sorption layer F1 sorb toxic substances in the air permeated through the first layer L1 to provide purified air.

The activated carbon beads B described above are spherical activated carbons having a diameter larger than the diameter of the first sorption layer F1 but smaller than the diameter of the second sorption layer F2 described later And at least one of the upper end and the lower end is fixed to the first sorption layer F1 or a second layer L2 described later. Since the activated carbon beads B are provided on the lower portion of the first sorption layer F1, the activated carbon beads B are adsorbed to the first layer L1 through the gap between the first sorbent layer F1 and the first layer L1, Thereby providing purified air.

The bottom of the activated carbon bead B is fixed via the adhesive AD as the second layer L2 of the above-described breathable material is provided with the adhesive AD on the surface (upper surface) as shown in Fig.

The third layer L3 of the above-described breathable material is superimposed on the lower portion of the second layer L2 as shown in FIG.

The above-described second sorption layer F2 is composed of the above-described sorption film forming agent as shown in Fig. 2, and is coated on the upper surface of the third layer L3 with a substantially uniform spacing, And is integrally provided in the third layer L3 in the form of a film. The second sorption layer F2 is attached and fixed to the lower surface of the second layer L2 via the adhesive AD as the adhesive AD is provided on the upper surface as shown in the figure. The second sorption layer F2 sores toxic substances in the air that has passed through the second layer L2 through the spaces between the activated carbon beads B to provide purified air.

The adhesive AD may be provided on at least one of the surface of the first sorption layer F1 and the upper surface of the second layer L2 on which the activated carbon beads B are fixed, And it is preferable that both of them are provided as shown. At this time, the adhesive AD may be provided to form, for example, a dot shape or a spot shape. The adhesive AD adheres and fixes the upper and lower ends of the activated carbon beads B to the surface of the first sorption layer F1 and the upper surface of the second layer L2, respectively. The adhesive (AD) can be composed of a hot-melt adhesive having excellent adhesion among various adhesives.

Here, the first layer L1 may not be provided with the first sorption layer F1 as shown in FIG. 12 described later. When the first layer L1 and / or the second layer L2 are formed of a normal hot-melt nonwoven fabric, that is, a nonwoven fabric containing a hot-melt adhesive, the above-mentioned adhesive AD may be separately applied no need. In this case, the hot-melt nonwoven fabric is melted by the heat applied from the outside to provide the above-mentioned adhesive (AD). Thus, the activated carbon beads B are fixed to the first layer L1 and / or the second layer L2 made of a hot-melt nonwoven fabric by such an adhesive (AD) (see FIGS. 2 and 12)

The adhesive AD may be provided on the upper surface of the second sorption layer F2 formed on the upper surface of the third layer L3 (for example, to form a dot shape) as shown in Fig. In this case, the second sorption layer F2 may be attached to the lower surface of the second layer L2 via the adhesive AD. At this time, the third layer L3 is substantially aligned with the lower layer of the second layer L2 as shown by the second sorption layer F2 to form a substantially monolithic body with the second layer L2. However, the second sorption layer F2 may not be attached to the lower portion of the second layer L2 so that the second layer L2 and the third layer L3 are spaced apart to form an air layer therebetween. In this case, the toxic substance flows smoothly through the air layer of the second sorption layer (F2), and the adhesive (AD) is omitted on the upper surface, so that a larger amount of toxic substances can be sorbed as the specific surface area is expanded.

The first and second sorption layers F1 and F2 described above are formed on the first layer L1 and the third layer L3 as shown in Figs. 2 and 6, , Diagonal lines, curved lines, or a grid), so as to provide an air passage through which air is communicated through the spaced gaps. That is, the first sorption layer F1 and the second sorption layer F2 are formed in a discontinuous form (Note: the third and fourth sorption sides, which will be described later, are formed into discontinuous shapes)

The first and second sorption layers F1 and F2 are formed into a coating film having a speck-shaped pattern as described above. As shown in FIG. 6, the first and second sorption layers F1 and F2 may be circular Octagonal, etc.). In the case of a circular or polygonal structure, the first sorption layer F1 and the second sorption layer F2 can be formed so that the spacing distance between the patterns is easily maintained.

The first and second sorption layers F1 and F2 are preferably formed to a thickness of about 5 to 70 mu m. The thicker the first and second sorption layers F1 and F2 are, the more the content of the activated carbon is increased to improve the filtration performance. However, when the thickness is less than 5 mu m, There is a problem that the weight of the fabric increases and the activity decreases.

The first and second sorption layers F1 and F2 are preferably formed to have a diameter (size) of 0.1 mm to 5 mm as shown in FIG. It is preferable that the first and second sorption layers F1 and F2 are configured such that the sizes (diameters) of the spots are different from each other as shown in FIG. In particular, it is preferable that the first sorption layer F1 is formed to have a diameter smaller than the diameter of the second sorption layer F2 as shown in FIG. 1 so that air passing through the first layer L1 is finely dispersed. The first sorption layer F1 is preferably composed of a diameter of about 0.1 mm to 0.5 mm for sufficient dispersion of air, and is preferably spaced apart by an interval of about 0.1 to 0.2 mm. The second fusing layer F2 is preferably spaced apart by a size (diameter) of about 2 to 5 mm and an interval of about 2 to 5 mm so that surface contact with air is smooth. When the diameter is smaller than 0.1 mm, the first sorption layer (F1) has insufficient sorbing performance. When the diameter is larger than 0.5 mm, the air can not be smoothly dispersed. When the first sorption layer (F1) And if it is spaced beyond 0.2 mm, there is a problem of transmitting too much air. If the diameter of the second sorption layer F2 is less than 2 mm, the sorption performance is deteriorated. If the second sorption layer F2 is larger than 5 mm, the air permeability is lowered. If the second sorption layer F2 is smaller than 2 mm, the air permeability is poor. A large amount of air is permeated and thus toxic substances may be leaked. Therefore, it is preferable that the first and second sorption layers F1 and F2 are formed in the diameter and the interval as described above.

The first sorption layer F1 and the second sorption layer F2 may be shaped to be offset from each other as shown in Fig. In this case, the second sorption layer F2 can substantially face the air that is introduced into the spaced-apart clearance of the first sorption layer F1. Thus, the second sorption layer F2 can sorb more toxic substances from the incoming air.

3, the third layer L3 is formed of the above-mentioned sorbable coating agent on the lower surface located on the opposite side of the second sorption layer F2 as shown in FIG. 3, A third sorption layer F3 may be provided. The third sorption layer F3 is formed to have the same size (diameter) and the same distance as the first sorption layer F1 described above. However, the third sorption layer F3 may be formed to have the same size and spacing as the second sorption layer F2 as shown in FIG. 4, . The third sorbent layer F3 additionally sorbs the toxic substance from the air permeated through the third layer L3 to provide purified air.

Meanwhile, as shown in FIG. 5, the third layer L3 may be provided with a fourth layer L4 below the third layer L3. The fourth layer L4 is made of the above-described material of the breathable material. The fourth layer L4 includes a fourth sorption layer F4, which is formed of the above-described sorption film forming agent and has a uniform spacing and is applied in the form of a coating film and is in the form of a film as it is cured. The fourth sorption layer F4 may be formed to have the same size as the second sorption layer F2 as described above or the same size as the first sorption layer F1 described above. The fourth sorption layer F4 may be attached to the lower portion of the third layer L3 by the above-mentioned adhesive AD as shown in the figure. However, the fourth sorption layer F4 may not be attached to the third layer L3 so that an air layer is formed between the third layer L3 and the fourth layer L4. The fourth sorption layer F4 may be formed so as to be different from the second sorption layer F2 as shown. The fourth sorption layer F4 further adsorbs toxic substances in the air permeated through the third layer L3 to provide purified air.

On the other hand, the third layer L3 or the fourth layer L4 described above may be provided with a shield L5 as shown in phantom in FIGS. The shield L5 is made of a breathable material and shields the lower part of the third layer L3 or the fourth layer L4. The shield L5 may be made of, for example, a nonwoven fabric of a thin film, but it is preferable that the shield L5 is made of a material excellent in stretchability, such as a knit or a tricot, in order to improve the feeling of fit. The shield L5 prevents the activated carbon powder or the activated carbon beads B flowing out from the third layer L3 or the fourth layer L4, if any, from escaping to the outside.

The filter-wound fabric for protecting a toxic substance as described above is characterized in that the first to fourth layers L1 to L4 are made of a breathable material and the first to fourth sorption layers F1 to F4, (B), so that it is possible to filter the toxic substance while ventilating the air to provide the purified air to the human body. In particular, since the first to fourth sorption layers F1 to F4 filter the air in multiple stages, the human body can be protected from toxic substances even if the activated carbon beads B are detached.

Meanwhile, the filter-ridged fabric for protecting toxic substances according to the embodiment of the present invention may be configured as shown in Fig. 12 (fifth embodiment), unlike the above. These fabrics are all the same as the above-described embodiment except that the above-described first sorption layer F1 is omitted, as shown in the figure.

12, the upper end of the activated carbon bead B is not attached to the above-described first sorption layer F1, but the lower layer of the first layer L1 is bonded with the adhesive AD Respectively. Therefore, the activated carbon beads B filter toxic substances from the air that has permeated the first layer L1. Of course, the second sorption layer F2 secondaryly filters toxic substances in the air that has passed through the second layer L2 through the activated carbon beads B to provide purified air. These fabrics can be filtered through the activated carbon beads (B) and the second sorption layer (F2) in multiple ways.

When the activated carbon bead B is firmly fixed to the second layer L2 through the adhesive AD of the second layer L2, the first layer L1 described above is bonded to the lower layer with the adhesive AD, May be omitted. That is, the activated carbon beads B may be configured so that only the lower end thereof is fixed. However, if only the lower end of the activated carbon bead B is fixed, there is a risk of falling off during washing, and therefore, it is preferable that both the upper and lower ends are fixed as described above.

The second sorption layer F2 may be formed on the lower surface of the second layer L2 as shown in FIG. In this case, in order to reduce the overall weight of the filter-ridden fabric, the third layer L3 is omitted and the shield L5 and the later-described inner layer IL described later are removed from the third layer L3 ). When the third layer L3 is provided as shown in the enlarged view, the second sorption layer F2 is bonded to the third layer L3 through the adhesive AD, L3. This third layer L3 is determined by the filtration performance required when the second sorption layer F2 is constructed as shown in the enlarged view.

Meanwhile, the filter-wound fabric for protecting the toxic substance according to the embodiment of the present invention may be configured as shown in FIG. 13 (sixth embodiment). 2, except that the adhesive AD is omitted from the first sorption layer F of the first layer L1 and the second sorption layer F2 is formed from a nonwoven fabric And a second layer L2 formed of a tree code.

The second layer L2 includes a third layer L3 on the lower surface and a second sorbent layer F2 formed on the lower surface as shown in FIG. Filter the toxic material that has flowed through. The second layer L2 may be bonded to the third layer L3 when the adhesive AD is provided on the second sorption layer F2 as shown in the figure. The second layer L2 may include a third layer L3 instead of the third layer L3 or a third layer L3 for reducing the overall weight of the filter- L3) and the adhesive (AD) of the second sorption layer (F2) may be omitted. However, in the second layer L2, when the third layer L3 is omitted, since the second sorption layer F2 contacts the shield L5 or the inner layer IL to reduce the feeling of fit, the third layer L3 .

Meanwhile, the filter-wound fabric for protecting the toxic substance according to the embodiment of the present invention may have a configuration (seventh embodiment) as shown in FIG. 13, except that the second sorption layer F2 is provided on the upper surface of the third layer L3. In this seventh embodiment, as shown in the drawing, the second sorption layer F2 may be attached to the lower surface of the second layer L2 composed of a nonwoven fabric or a tricot via the adhesive AD. Accordingly, the third layer L3 is composed of a nonwoven fabric or a tricot and is substantially combined with the second layer L2 to form a monolithic body with the second layer L2. As shown in the enlarged view, the first layer L1 is provided with the adhesive AD on the first sorption layer F1 so that the active carbon beads B are stably fixed, And can be fixed to the sorption layer F1.

13, the upper surface (for example, the opposite side of the first sorbent layer) facing the outside of the first layer L1 of the above-described embodiments is covered with the outer envelope OL Can be shielded. The outer cover OL may be made of a breathable material and may be made of a material capable of water-repellent or oil-repellent. The envelope OL is made of PTFE (Polytetrafluoroethylene), which is made of a material such as a conventional Gore-Tex which permeates air while preventing permeation of a liquid material, has excellent chemical resistance and does not change its properties even at high temperatures, It can be composed of a membrane made of EPTFE (Expanded polytetrafluoroethylen) material or a membrane having moisture permeability at the same time.

Here, the first layer L1 may be formed of the same fabric as the envelope OL described above. That is, the first layer L1 may be formed of a fabric capable of ventilation and water repellency. In such a case, the above-mentioned envelope OL can be omitted. Therefore, the filter weighted fabric according to the embodiment of the present invention can reduce the overall weight.

On the other hand, all of the embodiments described above are not shown in the drawings but are provided with the above-described shield L5 and / or the inner skin IL. The endothelium (IL) can be composed of a fabric having excellent breathability (e.g., knit or tricot) and improves the fit because it is adjacent to the wearer's skin. The inner layer IL can be adhered by the adhesive AD and can be omitted when the shield L5 is provided. That is, since the shield L5 can serve as the inner skin IL, the inner skin IL can be omitted.

1 to 5 as described above, powdered activated carbon for adsorbing toxic substances to a thermosetting or thermoplastic matrix of viscous, viscous material capable of being solidified from a liquid phase to a solid phase is first mixed with a solvent and a particulate filler To prepare a mixture, and the mixture is stirred to disperse the components to prepare a sorptive coating agent. At this time, the sorptive coating agent is prepared in the form of gel or colloid by mixing and stirring 24 to 75 parts by weight of matrix, 106 to 205 parts by weight of solvent and 0.2 to 57 parts by weight of fine particle filter with respect to 100 parts by weight of activated carbon.

Then, when the first sorption layer F1 is required, the sorption film forming agent may be formed in the form of a spot or a linear shape having a substantially uniform spacing on the surface (lower surface) of the first layer L1 made of a breathable material (Heating) for about 2 minutes to 25 minutes, especially 4 minutes to 15 minutes at a temperature of about 80 to 200 ° C, particularly 120 to 180 ° C, and then cooled by slow cooling at room temperature to form a cured . At this time, the sorptive coating agent is formed in a spaced apart state by a conventional screen printing method. Accordingly, the first sorption layer F1, which sores toxic substances, is formed on the lower surface of the first layer L1 in the form of a film.

Next, when adhesion is required, an adhesive (AD) of a thermosetting or thermoplastic material (for example, resin or hot melt) is applied (for example, in the form of a dot) to the surface of the first sorption layer F1, Or a gravure printing method (a further adhesive applying step) in a thickness similar or equal to the thickness of the first sorption layer F1. Separately, an adhesive (AD) is applied to the surface (upper surface) of the second layer (L2), which is provided under the first layer (L1) and made of a breathable material, ) (Second adhesive application step). At this time, when the second layer (L2) is made of a hot-melt nonwoven fabric, the adhesive (AD) is not applied separately but an adhesive contained in the second layer (L2) is used. Subsequently, the lower end of the activated carbon bead B, which is in the form of granules or spheres, is fixed on the surface (upper surface) of the second layer L2 on which the adhesive AD is applied.

Next, the upper end of the activated carbon bead B is fixed to the surface of the first sorption layer F1 coated with the adhesive AD, and then the third layer (Upper surface) of the third layer L3 is separated from the surface of the third layer L3 in the form of a speck or linear shape, and is applied in the form of a thick film, and then cured by cooling at room temperature or by heating, The second sorption layer F2 is formed into a film form. At this time, the second sorption layer F2 may be formed on the lower surface of the second layer L2 instead of the upper surface of the third layer L3.

Subsequently, the second sorption layer (F2) in the form of a film containing the particulate filler (A) by the sorption film forming agent is immersed in the reactive agent for extracting the particulate filler or is washed with the reactive agent and brought into contact with the reactive agent. At this time, the reactant chemically reacts with the particulate filler contained in the second sorption layer F2 to remove the particulate filler A from the second sorption layer F2. Therefore, the pore H described above is formed on the outer peripheral surface of the activated carbon 11 in the second sorption layer F2.

Subsequently, the second sorption layer (F2) is removed from the reactive agent and dried to remove the reactive agent from the second sorption layer (F2). However, the reactive agent may be removed by a method other than drying, such as washing with water.

Here, the above-mentioned reactive agent is also contacted to the above-described first sorption layer F1, third and fourth sorption layers F3 and F4 by the above-mentioned method, and then removed by the above-mentioned method. Therefore, the pores H are ensured in the first sorption layer F1, the third and fourth sorption layers F3 and F4.

Then, the second sorption layer F2 formed on the surface (upper surface) of the third layer L3 is fixed to the surface (lower surface) of the second layer L2. The second sorption layer F2 is adhered to the second layer L2 via the adhesive AD as the adhesive AD is applied (primary adhesive application step) to the surface before bonding. Therefore, the third layer L3 is attached to the second layer L2 via the second sorption layer F2 and is laminated. At this time, the third layer L3 is laminated to the second layer L2, and is firmly bonded to the second layer L2 as it is compressed.

Lastly, the first layer L1 is laminated on the upper portion of the second layer L2 on which the activated carbon beads B are fixed, thereby shielding the upper portion of the second layer L2. The first layer L1 is applied to the second layer L2 through the first sorption layer F1 adhered to the top of the activated carbon bead B as described above, It can be laminated. Alternatively, the first layer L1 may be laminated on the second layer L2 without the first sorbent layer F1 or the adhesive AD to shield the second layer L2, Only the adhesive AD may be applied without the first sorption layer F1 and may be fixed to the second layer L2 via the adhesive AD as described later.

Here, the above-mentioned activated carbon beads (B) are fixed at their lower ends by the following methods.

(B) is sprayed onto the upper surface of the second layer (L2) coated with the adhesive (AD) in a liquid or molten state, (2) the lower end of the activated carbon bead (B) (3) the activated carbon beads (B) are adhered to the adhesive (AD) by pressurizing the upper surface of the second layer (L2) through a conventional rolling roller or the like to pressurize the activated carbon beads (B) (Not shown) to remove the activated carbon beads B that are not attached to the adhesive AD (for example, a vibrator (not shown), for example) Or the like to vibrate the second layer L2 to remove unattached activated carbon beads B or provide vacuum pressure to the upper surface of the second layer L2 to suck and remove unattached activated carbon beads B.

Alternatively, (1) a reservoir (not shown) in which a plurality of activated carbon beads B are stored so that the upper surface of the second layer L 2 coated with the adhesive AD in the liquid state or the molten state is directed downward, (2) pressing the second layer (L2) inserted in the reservoir to adhere the activated carbon beads (B) to the molten adhesive (AD), (4) The adhesive AD is cured by drying at room temperature or by heat so that the activated carbon beads B are firmly fixed by the adhesive AD .

The top of the activated carbon bead (B) may be fixed by the following method.

(1) A first layer (L1) having a first sorption layer (F1) coated with a liquid or molten adhesive (AD) is laminated on a second layer (L2) with activated carbon beads (B) (2) compressing at least one of the first layer L1 and the second layer L2 in the same manner as described above, and (3) pressing the first layer L1 and the second layer L2, The adhesive AD is cured through the above-described method to fix the top of the activated carbon bead B to the surface of the first sorption layer F1.

In addition, the third layer L3 and the second layer L2 are laminated by the following method.

(1) Applying a liquid adhesive (AD) to the surface of the second sorption layer (F2) formed on the upper surface of the third layer (L3) or the lower surface of the second layer (L2) (2) The third layer L3 is pressed in a laminated state with the second layer L2 to join the third layer L3 and the second layer L2 through the adhesive AD.

The upper portion of the activated carbon bead B may be attached to the first sorbent layer F1 after the lower layer is first attached to the second layer L2 as described above, The lower layer may be attached to the second layer L2 after being attached to the layer F1. This order can be selectively changed as needed.

Meanwhile, the third and fourth sorption layers F3 and F4 described above are formed on the third layer L3 and / or the fourth layer L4 in the same manner as the first or second sorption layer F2 described above. . Therefore, the process of forming or laminating the third and fourth sorption layers F3 and F4 on the third layer L3 and / or the fourth layer L4 will be omitted.

On the other hand, the fabric shown in Fig. 12 described above is manufactured in the same manner as the above-described method except that the above-described method of manufacturing the first sorption layer F1 is omitted and instead, the surface of the first layer L1 An adhesive (AD) is provided to fix the top of the activated carbon bead (B) to the surface of the first layer (L1) through the adhesive (AD). At this time, the adhesive (AD) uses the adhesive contained in the first layer (L1) when the first layer (L1) is made of a hot-melt nonwoven fabric.

The activated carbon beads B are fixed to the upper surface of the second layer L2 through the adhesive agent AD of the second layer L2 described above and then the upper ends of the activated carbon beads B are bonded to the adhesive agent AD of the first layer L1. To the lower surface of the first layer (L1). Then, the first layer L1 is bonded to the second layer L2 to which the activated carbon beads B are fixed (lower fixed), and then the adhesive AD is cured by the method described above. Accordingly, the upper and lower ends of the activated carbon bead B are firmly fixed to the first layer L1 and the second layer L2.

The upper part of the activated carbon bead B may be attached to the first layer L1 after the lower layer is first attached to the second layer L2 as described above, L1 and then the lower layer may be attached to the second layer L2. This order can be selectively changed as needed.

On the other hand, the fabric shown in FIG. 13 is manufactured by the above-described method and a method similar to that described above except that the application of the adhesive (AD) to the first sorption layer (F1) is omitted and the second sorption layer 2 layer (L2). The fabric shown in FIG. 14 is also manufactured by the above-described method and a method similar to that described above except that the application of the adhesive AD to the first sorption layer F1 is omitted. Therefore, the fabrics shown in Figs. 13 and 14 can be manufactured by the above-described method.

On the other hand, the fabrics produced as described above can be made with special protective clothing for toxic substances. That is, the above-described fabric may be made of a special garment such as a chemical protective garment or a permeable protective garment. When the fabric is made of a special cloth, at least one of the outer skin OL and the inner skin IL may be provided at the upper and lower parts shown in FIG. 8, and between the outer skin OL and the inner skin IL Provided as intermediate fat. The outer cover OL is preferably made of a material capable of water-repellent and breathable (e.g., Gore-Tex). The inner layer IL is preferably composed of a fabric (for example, a nonwoven fabric or a tricot) which is excellent in comfort and can be ventilated. It is preferable that the outer layer OL and the inner layer IL are formed with the air layer SP separated from the intermediate layer ML as shown in the figure for ensuring air permeability.

On the other hand, the air permeability, weight, or adsorption performance of the filter-ridged fabric according to the above-described embodiment was tested with the comparative example using carbon tetrachloride (CCL ₄ ). 9, the resistance to toxic carbon tetrachloride (CCL ₄ ) is not significantly reduced even if the washing time is increased, while the activated carbon bead B is not significantly reduced, As shown in the dotted line graph, the activated carbon beads were detached as the washing time elapsed, and the protective performance against toxic substances was deteriorated. At this time, whether or not the activated carbon beads or powder activated carbon is dropped can be confirmed by the weight on the graph.

As shown in FIG. 10, the raw fabric of the present invention is a test result in which a screen used for applying an adhesive (AD) for bonding activated carbon beads (B) is applied at 150 to 300 mesh. Here, the black and white bar graphs in the drawing show the weight of activated carbon before and after washing, respectively, and the solid line and the dotted line graph show the protection performance before and after washing, respectively. As shown in the solid line graph (before washing), as the number of the mesh increases, the amount of the adhesive (AD) decreases due to the dense screen. However, since the activated carbon beads (B) are sufficiently adhered, the protective performance before washing exhibited the desired performance. However, as shown in the dotted line graph (after washing), in the case of 300 mesh, the amount of the adhesive (AD) is significantly decreased, so that the activated carbon beads B are removed during washing, Performance does not meet the required performance. That is, in the case of 300 mesh, the function as a protective filter could not be exhibited due to the removal of activated carbon beads (B). Therefore, it was confirmed that a screen for applying the adhesive (AD) is suitable for 150 to 250 mesh.

FIG. 11 is a graph showing the protective performance and weight of the fabric shown in FIGS. 2 to 5. The first bar graph on the left relates to the protection performance of the fabric shown in FIG. 2 (the first embodiment) The bar graph relates to the protection performance of the fabric shown in Fig. 3 (second embodiment), the third bar graph relates to the protection performance of the fabric shown in Fig. 4 (third embodiment), the fourth bar graph (Fourth embodiment) shown in Figs. And, the solid line graph relates to the weight of the fabric. As shown, the fabrics shown in Figs. 2 to 5 satisfied all of the requirements that the adsorption performance should be 1.3 mg / cm < ² > or more as indicated by a bar graph. However, the solid line graph shows that the weight increases from the fabric of FIG. 2 to the fabric of FIG. 5. Thus, it has been found that the fabric of Figure 2 is the most efficient fabric in terms of weight and protection performance.

On the other hand, the following Table 1 shows the weight, air permeability and protective performance of the fabrics (excluding the outer shell and the inner shell) according to the first to fourth embodiments shown in Figs. 2 to 5.

division First Embodiment Second Embodiment Third Embodiment Fourth Embodiment Fabric weight
(g / m ² ) 354 376 428 425 Breathability
(CFM) 1.02 1.16 1.17 1.12 Protection performance
(mg / m ² ) 2.18 2.34 2.77 2.68

In the above table, the first embodiment is the fabric of Fig. 2, the second embodiment is the fabric of Fig. 3, the third embodiment is the fabric of Fig. 4, and the fourth embodiment is the fabric of Fig. As a result, the weight of the test piece composed of the fabric and the sheath was 1.20 CFM, and the protective performance was 2.75 mg / cm ² .

Figure 2 is the fabric weight is the smallest, as described in the table, was excellent in both the air-permeable fabric than conventional fabrics, and determined that only protective performance somewhat lower than in other embodiments, the specified (1.3mg / cm ² Or more) showed adequate protection performance. From the fabric of Fig. 3, the fabric of Fig. 5 was found to be excessively heavy in weight compared to the fabric of Fig. 2, and the ventilation and protection performance were all satisfied. Thus, it can be seen that the fabric shown in Fig. 2 is the most efficient.

On the other hand, the fifth to sixth embodiments showed almost the same results as the above-described embodiments. This will be described with reference to Table 2 below.

division Fifth Embodiment Sixth Embodiment Seventh Embodiment Fabric weight
(g / m ² ) Before washing
347 After washing
336 Before washing
358 After washing
347 Before washing
359 After washing
348 Breathability
(CFM) 1.40 1.12 1.20 1.12 1.11 1.01 Protection performance
(mg / m ² ) 2.67 2.75 2.81 2.77 2.84 2.79

In the above table, the fifth embodiment is the fabric of Fig. 12, the sixth embodiment is the fabric of Fig. 13, and the seventh embodiment is the fabric of Fig. In the fifth to seventh embodiments, the breathability of the fabric (except the outer and inner layers) was almost the same as that of the conventional fabric (except for the prior art 1 / outer layer and inner layer), and the protection performance was almost equal or superior. Particularly, it was found that the protection performance after washing all exhibited a satisfactory protection performance for all the specifications (1.3 mg / cm ² or more), and the sixth and seventh embodiments were the most excellent.

In the meantime, reference numeral 51 in the drawing denotes a first filter sheet composed of a first layer L1 and a first sorption layer F1, and a reference numeral 52 denotes a first filter sheet composed of an activated carbon bead B and a second layer L2 The third filter sheet 53 is a third filter sheet composed of the third layer L1 and the second or third sorbent layers F2 and F3 and the fourth layer L4 and the second filter sheet And a fourth filter layer F4. That is, the filter-ridden fabric for protecting toxic substances according to the embodiment of the present invention may be composed of first to fourth filter sheets 51-54. Accordingly, the fabric according to the embodiment of the present invention can filter toxic substances in multiple stages.

It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to be illustrative of the present invention and are not intended to limit the scope of the present invention. Change, partial omission, or supplement). In addition, the above-described embodiments may combine some or many of the features with each other. Therefore, the structure and configuration of each component shown in the embodiments of the present invention can be implemented by modifications or combinations, and it goes without saying that modifications and combinations of these structures and configurations fall within the scope of the appended claims of the present invention.

AD: Adhesive B: Activated carbon beads
F1: first sorbent layer F2: second sorbent layer
L1: first layer L2: second layer
L3: third layer L4: fourth layer

Claims (20)

A first layer made of a breathable material;
A second layer disposed at a lower portion of the first layer, the second layer being made of a breathable material;
A plurality of activated carbon beads fixed between the first layer and the second layer and sorbing toxic substances from air permeated through the first layer;
An adhesive provided on at least one of a lower surface of the first layer and an upper surface of the second layer on which the activated carbon beads are fixed to adhere and fix the activated carbon beads; And
And a second sorption layer for sorbing the toxic substance from air permeated through the second layer through the gap between the activated carbon beads fixed with the adhesive,
Wherein the second sorption layer
A third layer formed integrally on the lower surface of the second layer for absorbing toxic substances transmitted through the second layer or formed of a breathable material superimposed on the lower portion of the second layer, A method of preparing a matrix comprising a powdered activated carbon and a solvent, a matrix of viscous, thermosetting or thermoplastic material, and a plurality of particulates adhered to the powdered activated carbon, Wherein the second layer or the third layer is discontinuously formed on the second layer or the third layer by sorbable coating agent composed of a fine particle filler of the first layer or the third layer, And a ventilation passage through which air is communicated,
Wherein the sorptive coating agent is coated on the lower surface of the first layer in the form of a thick film and then cured, and is integrally provided in the first layer in the form of a film, And a first sorbent layer to sorb the toxic substance,
The first sorbent layer may be formed,
Wherein the first layer is discontinuously formed in the same manner as the second sorption layer and is applied in the form of a thick film and then cured to provide an air passage through which air is communicated through the spaced gaps Filter Ridged Fabric. delete delete delete delete The method according to claim 1, wherein the first sorption layer
Characterized in that the top of the activated carbon bead is fixed through the adhesive as the adhesive is applied to the surface. A first layer made of a breathable material;
A second layer disposed at a lower portion of the first layer, the second layer being made of a breathable material;
A plurality of activated carbon beads fixed between the first layer and the second layer and sorbing toxic substances from air permeated through the first layer;
An adhesive provided on at least one of a lower surface of the first layer and an upper surface of the second layer on which the activated carbon beads are fixed to adhere and fix the activated carbon beads; And
And a second sorption layer for sorbing the toxic substance from air permeated through the second layer through the gap between the activated carbon beads fixed with the adhesive,
Wherein the second sorption layer
A third layer formed integrally on the lower surface of the second layer for absorbing toxic substances transmitted through the second layer or formed of a breathable material superimposed on the lower portion of the second layer, A method of preparing a matrix comprising a powdered activated carbon and a solvent, a matrix of viscous, thermosetting or thermoplastic material, and a plurality of particulates adhered to the powdered activated carbon, Wherein the second layer or the third layer is discontinuously formed on the second layer or the third layer by sorbable coating agent composed of a fine particle filler of the first layer or the third layer, And a ventilation passage through which air is communicated,
Wherein the third layer comprises:
And a third sorbent layer formed on the lower surface of the second sorbent layer opposite to the first sorbent layer and formed in the form of a film by being coated with the sorbable coating agent in a form of a thick film and cured to form a film, De cloth. 8. The method according to claim 7, wherein the third sorption layer
Is formed on the lower surface of the third layer with spots having the same or different diameters as the second sorbent layer. A first layer made of a breathable material;
A second layer disposed at a lower portion of the first layer, the second layer being made of a breathable material;
A plurality of activated carbon beads fixed between the first layer and the second layer and sorbing toxic substances from air permeated through the first layer;
An adhesive provided on at least one of a lower surface of the first layer and an upper surface of the second layer on which the activated carbon beads are fixed to adhere and fix the activated carbon beads; And
And a second sorption layer for sorbing the toxic substance from air permeated through the second layer through the gap between the activated carbon beads fixed with the adhesive,
Wherein the second sorption layer
A third layer formed integrally on the lower surface of the second layer for absorbing toxic substances transmitted through the second layer or formed of a breathable material superimposed on the lower portion of the second layer, A method of preparing a matrix comprising a powdered activated carbon and a solvent, a matrix of viscous, thermosetting or thermoplastic material, and a plurality of particulates adhered to the powdered activated carbon, Wherein the second layer or the third layer is discontinuously formed on the second layer or the third layer by sorbable coating agent composed of a fine particle filler of the first layer or the third layer, And a ventilation passage through which air is communicated,
A fourth layer of a breathable material provided below the third layer; And
And a fourth sorbent layer made of the sorbable coating agent and formed in a film shape as a result of being applied in the form of a thick film while being spaced apart from the upper surface of the fourth layer and cured. (1) The special protective clothing for toxic substances manufactured with filter-ridged fabric for protecting against toxic substances according to Paragraph (1). 11. The method of claim 10,
The filter-ridden fabric for protecting the toxic substance is used as an intermediate fatigue shielding the upper part of the outer skin made of a breathable material and shielding the inner skin made of a breathable material and filtering the toxic substance between the outer skin and the inner skin Special protective clothing for protection against toxic substances. A layer preparing step of preparing a first layer, a second layer and a third layer made of a breathable material;
A matrix of a thermosetting or thermoplastic material of powdered activated carbon and a solvent and a viscous material and a plurality of fine particles adhered to the activated carbon, A step of preparing a coating agent composition for producing a water-soluble coating agent composition comprising a particulate filler;
Applying a coating agent on the first layer, the lower surface of the second layer, or the upper surface of the third layer in the form of a thick film having discontinuity;
Forming a first sorption layer or a second sorption layer that forms a film form by curing the applied coating agent to sorb the toxic substance to the first layer, the second layer, or the third layer;
The fine particle filler consisting of a plurality of fine particles is extracted from the first sorption layer or the second sorption layer, and pores formed by the extracted fine particle filler in the form of bubble-like cavities are formed in the first sorption layer or the second sorption layer Forming step;
Applying a first adhesive to the second layer or the third layer and applying an adhesive to the second sorption layer formed with the pores;
A second adhesive applying step of applying the adhesive to the surface of the second layer;
A lower bead bottom fixing step of fixing a lower end of an activated carbon bead having a granular or spherical shape to a surface (upper surface) of the second layer coated with the secondary adhesive;
Bonding the second layer and the third layer through the first adhesive applied to the second sorption layer and joining them together; And
And an upper shielding step of shielding the upper part of the second layer by stacking the first layer on the upper part of the second layer where the third layer is laminated on the lower part and the lower end of the activated carbon bead is fixed on the upper surface Method for manufacturing filter ridged fabric for protecting toxic substances. 13. The method of claim 12,
A mixture preparation step of adding a solvent, activated carbon and a particulate filler to the matrix to prepare a mixture; And
And stirring the mixture to disperse the mixture,
The mixture-
Characterized in that 24 to 75 parts by weight of a matrix, 106 to 205 parts by weight of a solvent and 0.2 to 57 parts by weight of a particulate filter are mixed with 100 parts by weight of the activated carbon to prepare the mixture in the form of gel or colloid. A method of making a ridged fabric. 13. The method of claim 12,
Applying a primary coating agent on the lower surface of the first layer in the form of a thick film having a discontinuous shape; And
The method according to any one of claims 1 to 3, wherein the sorption film forming agent is applied to the lower surface of the second layer or the upper surface of the third layer in the form of a thick film having a discontinuous shape, And a second coating agent application step of applying the coating agent in a small size. delete 13. The method of claim 12,
Contacting the first sorption layer or the second sorption layer with a reactive agent for extracting the particulate filler from the first sorption layer or the second sorption layer through a chemical reaction between the reactive agent and the particulate filler, Extracting a particulate filler; And
And a reactive agent removing step of removing the reactive agent from the filter layer. delete delete [12] The method of claim 12,
A bead spraying step of spraying the activated carbon beads on the upper surface of the second layer coated with the adhesive;
A bead pressing step of pressing the upper surface of the second layer on which the activated carbon beads are spread to press the activated carbon beads;
An adhesive curing step of curing the adhesive applied to the second layer to fix the lower end of the activated carbon bead to the second layer; And
Removing the activated carbon bead from the second layer by vibrating the second layer or providing vacuum pressure on the upper surface of the second layer to remove the activated carbon bead not attached to the adhesive from the second layer A method of making a filter rised fabric. A special protective clothing for toxic substances produced by the manufacturing method of claim 12.

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