KR101864634B1 - Fabric structure of poisonous materials protective garment with restrictive ventilating function - Google Patents

Abstract

The present invention relates to a fabric structure of a toxic material protective garment having a limited ventilating function, which comprises a shell of a water-repellent, breathable material, and a cover which is printed on the inner surface of the shell by a thick film, Disclosed is a raw material structure of a toxic material protective garment, characterized in that it comprises a sorption layer containing activated charcoal which sorb the material and limitedly permeate only the filtered air, and an endothelium which ventilates the sorption layer.

Description

BACKGROUND OF THE INVENTION Field of the Invention [0001] The present invention relates to a protective structure for a toxic material having a limited ventilation function,

More particularly, the present invention relates to a fabric structure of a toxic material protective garment having a limited aeration function. More specifically, the present invention relates to a structure of a toxic material protective garment having a limited aeration function, The present invention relates to a fabric structure of a toxic material protective garment having a limited ventilation function.

Generally, in modern warfare, the development of weapons of mass destruction and the increasing number of countries are demanding products that can protect human body and equipment. 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, various protective equipment for protecting the human body such as a CBR protective clothing and a gas mask are required. 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 the dual structure which applied the fabric that gave performance.

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 "Protection of NBCs and Protection of NBCs".

According to this prior art, in order to protect the human body from toxic substances in fluid state composed of gas and / or liquid, it is possible to protect the intermediate blood by using a fabric in which latex rubber or the like is thinly coated on a polyester- And an outer shell that serves to primarily block toxic substances in the solid state and an intermediate fat that can adsorb and remove toxic substances as the surface is treated with activated carbon using an adhesive.

Particularly, in the above-described prior art, a sorptive agent formed in the form of porous beads having fine pores is used and is provided between the intermediate vein and the outer shell to adsorb and filter toxic substances.

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

In addition, since the sorbent is provided between the outer shell and the intermediate shell in the form of beads as described above, only the upper and lower portions of the beads sorbent are attached to the outer shell and the intermediate shell, so that the beads are removed from the shell and the middle fatigue during washing There is a possibility that phenomenon may occur, and if the washing is carried out several times, there is a problem that the adsorption performance of the toxic substance remarkably decreases.

In addition, since the sorbent needs to be manufactured in the form of beads, the manufacturing cost is excessively high, the manufacturing cost is increased, and the weight is increased. There is also a problem.

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). These products are merely sprayed with activated carbon powder on the same fabric as nonwoven fabric and then pressurized. When used as a protective clothing, there is a problem that the activated carbon is separated from the fabric during the activity of the wearer. In addition, There is a problem that reuse is not possible.

Since the activated carbon powder is a fine particle, when the active carbon powder is adhered to a fabric by using an adhesive, the activated carbon powder can not exhibit its adsorption function as the activated carbon powder is buried in the adhesive, and in particular, Inevitably, the activated carbon powder was simply sprayed on the fabric.

KR, B, 10-1041415, (2011.06.08) KR, B, 10-1146573, (2012.05.09) KR, B, 10-1406311, (2014.06.03)

Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is an object of the present invention to provide a toxic material protective cloth having a limited ventilation function with which activated carbon is uniformly formed to improve the adsorption performance of toxic substances, The purpose of the structure is to provide.

In order to accomplish the above object, the present invention provides a cloth structure of a toxic material protective clothing comprising: a shell of a water-repellent breathable material; A sorption layer which is coated with a thick film on the inner surface of the envelope and is printed in a plane and contains activated carbon which sores the toxic substance from the fluid flowing through the envelope and restricts only the filtered air; And an inner skin that airtightly shields the sorption layer.

Alternatively, the fabric structure of the present invention may include a shell of a water-repellent breathable material; An intermediate jacket corresponding to the outer jacket, the jacket interposed between the outer jacket and the outer jacket to limit the penetration of the filtered air; And an inner skin that breathably shields the intermediate blood, wherein the intermediate blood corresponds to the outer skin, and the activated carbon which restricts permeation of only the filtered air by adsorbing the toxic substance from the fluid flowing through the outer skin, And a catalyst layer formed on the catalyst layer.

The intermediate blood is separated from the outer skin and the inner skin, and the toxic substance is sorbed in the fluid flowing into the inner skin through the outer skin as the sorption layer is coated on one surface or both surfaces of the thick film, And an extra layer of a breathable material that allows only limited permeation.

Wherein the sorption layer comprises: powdered activated carbon having a plurality of pores for sorption of toxic substances; A binder mixed with the powdered activated carbon and composed of mucilaginous material and cured by drying or heating; And a solvent mixed with the mixture of the powdered activated carbon and the binder, wherein the binder is made of a material having at least one of elasticity, hydrophilicity, chemical resistance, heat resistance and moisture resistance, Which is evaporated or dissipated.

Alternatively, the sorption layer is composed of 5 to 30 wt% of a binder mixed with 8 to 70 wt% of powdered activated carbon, and the balance solvent, and the binder is at least one of elasticity, hydrophilic property, chemical resistance, heat resistance and moisture resistance Characterized in that it is made of a material having any one of them, and the solvent is made of a material which is evaporated or dissipated by heating.

The sorption layer may further comprise a flow control additive added to the mixture of the powdered activated carbon, the binder and the solvent.

The flow control additive may be comprised between 0.5 and 15 wt%.

The intermediate layer may further include at least one additional layer having an adhesive layer formed on its surface and bonded to one or both surfaces of the extra layer.

The additional layers may be attached to the extra layer in a stacked state.

The outer shell and the inner shell are separated from each other and have an air layer between them.

Wherein the outer shell, the intermediate shell and the inner shell are spaced apart from each other and have an air layer between them.

According to the fabric structure of the toxic material protective clothing according to the present invention, activated carbon is uniformly formed to improve the adsorption performance of toxic substances, and the activated carbon is not dropped during washing, so that the contaminated fabric can be washed and reused.

In addition, according to the present invention, when the composition for protecting a toxic substance is composed of a powdered activated carbon, a binder and a solvent and has a certain viscosity and exhibits an elastic force to provide a wrinkled skin or an intermediate skin, And the composition for protecting the toxic substance does not come off from the fabric even if the fabric is wrinkled or washed.

1 is a schematic view showing a sorption layer according to the present invention.
2 and 3 are schematic views showing a fabric to which the sorption layer according to the present invention is applied.
FIG. 4 is a schematic view showing a fabric structure of a toxic material protective clothing according to the present invention. FIG.
5 is a table showing screen printing conditions applied to the present invention.
6 is a table showing experimental results of the fabric according to the present invention.
7 is a flowchart showing a method of evaluating the performance test of the fabric according to the present invention.
8 is a flowchart showing the washing process of the fabric according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a schematic view showing a sorption layer according to the present invention.

The sorption layer 10 is composed of a porous powdered activated carbon 11 for sorption of toxic substances, a binder 12 for mixing powdered activated carbon 11 and a solvent for mixing with the binder 12 Is formed on the surface of the thick film as described below by the composition.

The activated carbon 11 adsorbs toxic substances, so that the porous carbon takes the form of powder. The powdered 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 the sole or in combination of two or Or more can be mixed and used. In addition, the activated carbon powder 11 may contain Cu, Ag, Fe, and Ce to enhance selective adsorption performance depending on the kind of the toxic substance.

The activated carbon 11 is preferably formed to have a particle size (particle size) of 5 to 300 μm, and most preferably a size of 5 to 10 μm. However, since the price is too high, the activated carbon 11 has a particle size of 72 μm to 78 μm Is particularly preferable. The smaller the particle size of the activated carbon 11 is, the better the effective area for adsorption is, so the smaller is the better. It is preferable that the activated carbon 11 is composed of a coal system which is advantageous to a high temperature rather than a coconut system. This is because, when the activated carbon 11 is constituted by a coconut system, it is preferable that the activated carbon 11 is made of a coal system which is resistant to thermal stress, since it is susceptible to thermal stress during a heat treatment process to be described later. The powdered activated carbon 11 is bound by the binder 12.

The binder 12 can be a urethane resin mainly used for a product which is capable of being cured at a low temperature and has excellent ductility and which is particularly required for elasticity, or an acrylic or melamine resin excellent in moisture resistance, hardness and moldability, At least one of epoxy, silicone, phenol, and polyamic acid having adhesiveness, chemical resistance and heat resistance can be selectively used. Since the binder 12 is brittle in the case of phenol or epoxy, it is most preferable that the binder 12 is made of urethane excellent in elasticity and flexibility. The binder 12 is made of a mucilage so as to mix powdered activated carbon 11, and is hardened by drying or heating.

The binder 12 can be used alone, for example, in a water-based urethane which is excellent in adhesion to fibers even under low-temperature curing conditions and which is durable by imparting elasticity to the adsorbent layer itself, Acrylic, melamine resin excellent in moisture resistance, hardness and moldability, epoxy, silicone, phenol, polyamic acid, etc. having adhesiveness, strength, chemical resistance and heat resistance can be mixed according to required physical properties.

The solvent may be composed of at least one material that is compatible with other compositions and has physical properties suitable for curing and operating conditions. That is, the solvent is composed of a material which is easy to be mixed with the binder 12 described above or the flow control additive described later. In particular, the solvent is preferably composed of a material that provides pores in the binder 12 as it is evaporated or dried or dispersed by heat during a heat treatment process as described below. It is preferable that the solvent is composed of a substance which is compatible with the binder and remains for the time required for workability. The solvent may be, for example, at least one of alcohol, water, ethylene glycol, butyl carbitol, butyl cellosolve, and terpineol. That is, the solvent may be composed of the listed materials singly or in combination.

The sorbent layer 10 composed of the powdery activated carbon 11, the binder 12 and the solvent is preferably prepared by mixing 5 to 30 wt% of a binder mixed with 8 to 70 wt% of powdered activated carbon and the remaining solvent To 62 wt%).

At this time, if the content of activated carbon 11 is less than 8 wt%, the desired adsorption capacity can not be expected. If it exceeds 70 wt%, the printability is lowered and the washing durability is lowered. If the content of the binder 12 is 5 wt% or less, there is a problem in washing durability due to a decrease in adhesion with a base material. When the content is 30 wt% or more, the specific surface area and active site of the activated carbon 11 are affected, Therefore, the binder is preferably mixed in the powdered activated carbon 11 in an amount of 5 to 30 wt%.

Meanwhile, the powdery activated carbon 11, the binder 12 and the sorbent layer 10 composed of a solvent may further include a flow control additive as the case may be.

The fluidity control additive improves the printability of the composition and controls the physical properties of the ink such as dispersibility and stability. The sorption layer 10 composed of the powdery activated carbon 11, the binder 12, By controlling the viscosity and fluidity of the composition for protecting toxic substances by improving the dispersion characteristics of the powdery activated carbon (11) with the addition of the regulating additive, it is possible to maintain the storage stability, uniform workability and printability at the time of coating or printing, do.

Here, the above flow control additive may be composed of, for example, a surfactant (including negative ions, positive ions, and neutral ions), and is preferably composed of 0.5 to 15 wt%. If the content of the flow control additive is less than 0.5 wt%, the composition for protecting toxic materials is high in thixotropy, and smooth printing is impossible. When the content is more than 15 wt%, the thixotropy is low and workability is poor. do.

The powdery activated carbon 11, the binder 12 and the sorbent layer 10 composed of a solvent are printed on the fabric and integrated with the fabric. This will be described with reference to FIG. 2 and FIG.

Figures 2 and 3 are schematic diagrams showing fabrics with a composition for protecting against toxic substances having a limited aeration function according to the present invention.

2 and 3 are schematic views showing a fabric to which the sorption layer according to the present invention is applied.

Referring to the drawings, the sorption layer 10 is printed and applied on the surface of the base layer 20 as shown in FIG. At this time, the sorption layer 10 is coated on at least one surface (determined on one side or both sides-adsorption performance) of the base layer 20 as shown.

The sorption layer 10 is integrally attached to the surface of the base layer 20 by the binder 12 described above as shown. As shown in FIG. 1, as the activated carbon 11 is contained in the binder 12, the sorbent layer 10 sores the toxic substance from the fluid flowing into the base layer 20 and restrictively transmits only the filtered air .

Here, the base layer 20 may be formed of a breathable material or a sheet (fabric) of breathable material capable of water repellent or oil-repellent. For example, the base layer can be made of a breathable material such as fabric, leather, synthetic fibers, sponge or nonwoven fabric, or a film having a plurality of fine pores formed therein. In particular, the base layer 20 is preferably composed of a nonwoven fabric having air permeability and light weight, a blend of nylon and cotton, a blend of polyester and cotton, and the like. Here, the above-mentioned nonwoven fabric is excellent in air permeability, light in weight and excellent in printing property.

As shown in FIG. 2, the base layer 20 may be provided with a sorption layer 10 on one surface. Alternatively, the base layer 20 may have a sorption layer 10 on both surfaces thereof. This sorption layer 10 is provided on one side or both sides of the base layer 20 according to the required adsorption performance. That is, the sorption layer 10 is provided on one side of the base layer 20 as shown in FIG. 2 when general adsorption performance is required. However, if a stronger adsorption performance is required, (Not shown). At this time, when the sorption layer 10 is provided on both sides of the base layer 20, toxic substances can be filtered in two steps.

Here, the above-described sorption layer 10 provides a large number of fine pores (see the enlarged view of FIG. 1) to the binder 12 as the above-mentioned solvent is evaporated or dried or dispersed by the heat treatment process described below. At this time, pores are formed in the binder 12 as the solvent in the binder 12, which is cured by the heat treatment, is substantially vaporized and destroyed. These pores are sized to pass air to the base layer 20, while preventing the penetration of toxic substances. For example, the sorbent layer 10 may be formed by a solvent that is substantially melted in the binder 12, so that when the alcohol mixed in the binder 12 is vaporized and evaporated, Pores are formed. Thus, the sorbent layer 10 filters most of the toxic substances through the pores. However, the sorption layer 10 filters the toxic substance through the activated carbon 11 bound to the binder 12 when the toxic substance flows through the pores.

The sorption layer 10 is adhered to the base layer 20 by printing and formed like a vinyl film on the surface of the base layer 20, as described later. The sorption layer 10 is formed to have a thickness with flexibility. For this purpose, it is preferable that the binder 12 is made of a material such as urethane which can provide flexibility when the sorbent layer 10 is formed as a thick film, and can prevent brittleness. Of course, the thickness of the sorption layer 10 is determined by the printing thickness at the time of printing as described later.

The sorption layer 10 may be densely formed on the surface of the base layer 20 in the form of dot, lattice or oblique line. In particular, the sorption layer 10 may be alternately formed in an alternating state when formed on both surfaces of the base layer 20 in a spaced apart form. Since the sorption layer 10 is formed to be staggered on both sides, it is possible to filter virtually all the toxic substances introduced into the spaced gaps.

Meanwhile, FIG. 4 is a schematic view showing a fabric structure of a toxic material protective clothing according to the present invention. The fabric structure according to an embodiment of the present invention will be described with reference to these drawings.

The base layer 20 may be composed of a sheath OT as shown in FIG. That is, the envelope OT may be provided on the surface of the sorption layer 10 as a thick film, as shown in the figure. At this time, it is preferable that the sorption layer 10 is printed on the inner surface of the outer envelope OT as shown and integrally provided on the surface of the envelope OT. Accordingly, the distal end structure of the toxic substance protective clothing according to the present invention can be composed of the outer skin OT and the inner skin IN having the sorption layer 10 as shown in the figure.

Here, the above-mentioned outer cover OT is composed of a fabric which can be water-repellent and oil-repellent and can be ventilated like a normal climbing jacket outer shell. For example, the shell (OT) may be made of a conventional Gore-Tex fabric, or PTFE (Polytetrafluoroethylene) which is excellent in chemical resistance and does not change its characteristics even at high temperatures, EPTFE polytetrafluoroethylen) film or a fabric with a membrane.

The above-described inner layer IN is composed of a fabric of air permeable material (for example, a material such as a knitted or mesh tricot with excellent stretchability and wearing comfort) to ventilate the sorption layer 10 as shown. At this time, the endothelium (IN) ventilates the sorptive layer (10) printed on the inner surface of the envelope (OT) while being spaced apart from the envelope (OT) as shown.

On the other hand, the sorption layer 10 is prepared by kneading the aforementioned 8 to 70 wt% powdered activated carbon, 5 to 30 wt% of the binder and the balance solvent, and further kneading the aforementioned flow control additive in an amount of 0.5 to 15 wt% (Coating agent) is applied to the base layer 20, printed, and cured by heat treatment, the surface of the base layer 20 is formed as a thick film.

On the other hand, the base layer 20 may be composed of an inner skin IN disposed inside the outer skin OT as shown in the figure. That is, the endothelium (IN) may be provided on the surface thereof with the sorption layer 10 on the surface of the thick film. Therefore, the fabric structure according to the present invention is composed of the inner skin IN having the outer skin OT and the sorption layer 10 as shown in the figure.

The endothelium (IN) may be composed of a fabric made of a breathable material, which is usually applied to a functional garment to protect toxic substances, or may be made of the above-mentioned nonwoven fabric. The inner layer IN is preferably provided with a sorption layer 10 on its upper surface as shown. The endothelium (IN) can filter toxic substances from the fluid that has passed through the envelope (OT) through the sorption layer (10).

On the other hand, the base layer 20 may be composed of an extra layer 22 made of a common air permeable material such as a nonwoven fabric, which is separate from the outer layer OT and the inner layer IN as shown in the figure. That is, the extra layer 22 may be provided on the one side or both sides of the sorption layer 10 as a thick film. This extra layer 22 may be provided as an intermediate ply (MD) between the envelope OT and the endothelium IN as shown. Accordingly, the fabric structure according to the present invention may be composed of an intermediate pile MD and an internal pile IN having an outer shell OT and a sorption layer 10 as shown in the figure.

Here, as shown in the drawing, the above-mentioned intermediate ply MD can be shielded by the additional layer 30 of the air permeable material (for example, nonwoven fabric or the like) on the outer side of the sorbent layer 10 or on the outer side of the extra layer 22. The additional layer 30 may be made of the same breathable material as the base layer 20 and adhered to the sorbent layer 10 or the extra layer 22 through the adhesive layer A made of an adhesive, The air is ventilated while filtering the toxic substances in the attached state. At this time, the adhesive layer (A) is partially formed by gravure, dot or mesh method.

The additional layer 30 may be attached to both surfaces of the extra layer 22 provided with the sorption layer 10 as shown in the drawing. Alternatively, the additional layer 30 may be attached to only one surface of the extra layer 22. The additional layer 30 may be formed as a plurality of layers as shown in FIG. 1, and may be laminated on one side or both sides of the extra layer 22. The attachment position and the quantity of the additional layer 30 are determined by the required adsorption performance. That is, the additional layer 30 may be attached to one or both surfaces of the extra layer 22 provided with the sorption layer 10, depending on the required adsorption performance. For example, the additional layer 30 may be configured to filter the toxic substance before the fluid that has permeated the envelope OT on both sides is introduced into the extracellular layer 22 or to remove the toxic substance from the fluid that has permeated the extra layer 22 You can filter again. Accordingly, since the toxic substance can be filtered in multiple stages through the extra layer 22 and the additional layer 30, the adsorption performance is improved.

The additional layer 30 may be disposed in a state separated from the extra layer 22 provided with the sorption layer 10, That is, the additional layer 30 may be provided separately from the extra layer 22.

The extra layers 22 provided on one side or both sides of the sorption layer 10 may be provided in a state of being attached to each other or may be attached with the additional layer 30 interposed therebetween, And the additional layer 30 may be interposed in a separated gap. In addition to this, the extra layer 22 provided with the sorption layer 10 having such a structure may be provided with the above-mentioned additional layer 30 attached or spaced on the upper side (outer side) and / or the lower side .

On the other hand, the sorption layer 10 is formed on the surface of the base layer 20 composed of the outer layer OT or the inner layer IN or the extra layer 22 by, for example, screen printing or gravure printing, . This thickness is determined by the printing properties and the required sorbing performance. The sorption layer 10 can be printed, for example, in a thickness of about 5 to 35 mu m in the case of screen printing. At this time, when the ink-receiving layer 10 is printed with a thickness of about 5 탆 or less, defects are generated due to fibrous unevenness, and when the ink is printed with a thickness of about 35 탆 or more, weight is increased, which is inefficient. The sorption layer 10 may be printed in a thickness of about 0.5 to 5 mu m in the case of gravure printing. At this time, when the ink-receiving layer 10 is printed to a thickness of about 0.5 탆 or less, the thickness is too thin to achieve a desired sorbing performance and can not be printed with a thickness of about 5 탆 or more due to the size of the ink groove formed on the gravure printing plate It is preferable to print with the thickness as described above.

The sorption layer 10 is formed by a printing plate (screen) capable of printing with a thickness of 15 탆 by a poly 100 mesh as shown in Fig. 5 for a screen printing, a pressure of 3 bar, a printing speed of 100 mm / s, Hardness, squeegee angle of 75 DEG, plate making of 3 mm, and intervention of the substrate. To this end, the screen (not shown) is disposed at an interval of the gap on the upper part of the base layer 20, and then the above-mentioned composition for protecting the toxic substance in liquid form is applied. And, as the composition for protecting the toxic substance is developed by the squeegee (not shown) and developed, the composition for protecting the toxic substance is passed down through the fine mesh of the mesh and transferred. Thus, the base layer 20 is printed with the sorption layer 10 on the surface in the form of a coating film.

Alternatively, in the case of gravure printing, the sorption layer 10 is printed on the surface of a thick film on the surface of the base layer 20 through a printing surface of a gravure printing plate (not shown) having a plurality of fine grooves formed on one surface thereof. To this end, the above-mentioned composition for protecting toxic substances in liquid form is applied to the printing surface of the gravure printing plate, and then the gravure printing plate is pressed against the base layer 20 in a state in which the gravure printing plate is set to be opposed to the upper portion of the base layer 20 And transferred onto the surface of the base layer 20. Thus, the base layer 20 is printed with the sorption layer 10 on the surface in the form of a coating film.

On the other hand, the sorption layer 10 is heated (heated) at a temperature of about 80 ° C to 200 ° C, particularly 120 to 180 ° C for about 2 minutes to 25 minutes, especially for 4 minutes to 15 minutes, And adheres to and adheres to the surface of the thick layer on the surface of the base layer 20 while being hardened on the surface. Thus, the fabric for protecting the toxic substance is composed substantially of a single piece. At this time, the above-mentioned solvent is evaporated or dissipated by the heat treatment process.

In this case, the above-described sorption layer 10 does not evaporate the solvent at a temperature of about 80 ° C or lower, and the curing rate of the binder 12 is too slow. When the temperature is higher than about 200 ° C, Since deformation may occur in the raw material of the heat exchanger 20, the heat treatment should be performed under the temperature conditions as described above. The sorption layer 10 is heat-treated as it passes through a heating furnace equipped with an oven convection oven, a far-infrared lamp or a heating roller.

On the other hand, at least one of the outer shell OT, the intermediate shell MD and the inner shell IN described above may be spaced apart from each other and an air layer may be provided between the shells. Accordingly, the outer skin OT, the intermediate skin MD and the inner skin IN are made of clothes for protecting toxic substances, and when worn, their activity is improved as they are spaced from each other around the air layer.

The result of the experiment of the present invention produced in various ways is as shown in FIG. As shown in the drawings, the present invention was tested in Examples 1 to 15 by various composition ratios, and adsorption capacities before and after washing were measured. At this time, the compounding ratio of the solvent is not disclosed in the experimental result table of the illustrated examples, but the compounding ratio of the solvent is not described because the solvent is the balance material that is essentially blended unlike the flow control additive. In addition, a US military product ("US Army" in FIG. 6) and a Korean military product ("Korean Army" in FIG. 6) simply sprayed with activated carbon powder mentioned in the prior art 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 the liquid phase test using a similar agent having similar molecular structure and properties. For example, the analogous agent is thiophenol, which contains sulfur (S), a similar product of DMMP (dimethyl methylphosphonate) and Mustard (HD), containing phosphorus (P), a similar product of Soman (GD). In the experiment, each fabric (adsorbent specimen) was immersed in a similar agent (liquid sample) as shown in FIG. 7 to adsorb the toxic substance for a set time (for example, 5 minutes, 30 minutes, 1 hour) Adsorption performance was measured. Subsequently, each fabric was analyzed by GC / UV / Vis spectroscopy as in the usual calculation method, and the adsorption capacity (sorption capacity) of the sorption layer (sorption agent) was calculated by calculating the remaining concentration by substituting the calibration data based on the analysis data .

In the measurement of the washing performance, a specific detergent as shown in FIG. 8 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, Washed twice for 2 minutes, then immersed in water at 32 to 34 ° C and subjected to a first rinse for 2 minutes, followed by second and third rinsing again in the same manner, followed by dehydration for 3 to 5 minutes, followed by 19 ° C For 35 to 50 minutes to measure the adsorption capacity after washing.

As a result of the measurement, as shown in Fig. 6, in the case of Example 1, the amount of activated carbon was insufficient, so there was no adsorption capacity before and after washing, and in Examples 2 and 3, And the ratio of binder to activated carbon was inadequate in Example 4, so that the adsorption capacity before washing was satisfied, but the adsorption capacity after washing did not satisfy the required adsorption capacity. In the case of Examples 5, 6, 8 and 9, the adsorbing performance was insufficient due to excessive mixing of the activated carbon with respect to the binder. In Examples 7 and 10, the amount of binder and the amount of activated carbon were excessive, And Examples 11, 14, and 15 did not exhibit the same problem, that is, the required adsorption performance because the mixing ratio was inadequate. However, in the case of Examples 12 and 13, the mixing ratio of the activated carbon, the binder and the additive was appropriate, and the desired adsorption capacity before and after the washing was exhibited. In particular, as shown in the case of Example 12, Respectively.

On the other hand, in the case of ROK military, the adsorption capacity before washing was excellent, but it was confirmed that the adsorption performance was lost due to removal of all the activated carbon during washing.

Accordingly, it has been found experimentally that the present invention provides better adsorption performance when the active carbon, binder and additive are mixed at an optimum ratio than the comparative example. Therefore, according to the present invention having the above-described structure, the activated carbon 11 is uniformly formed to improve the adsorption performance of toxic substances, and the activated carbon does not fall off during washing, so that the contaminated fabric can be washed and reused.

According to the present invention, when the composition for protecting a toxic substance is composed of powdery activated carbon (11), a binder (12) and a solvent and has a certain viscosity and exhibits an elastic force to provide a wrinkled skin (OT) The application of the protective composition is easy and the processability is excellent. Moreover, even if the fabric is wrinkled or washed, the composition for protecting the toxic substance does not fall off from the fabric.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. .

10: sorption layer 11: powder activated carbon
12: Binder 20: Base layer
22: Extra Layer 30: Additional Layer
OT: envelope IN: endothelium

Claims (9)

A water-repellent air-permeable sheath;
A sorption layer which is coated with a thick film on the surface of the envelope so as to be printed on a surface thereof and contains activated carbon which sores the toxic substance from the fluid flowing through the envelope and restricts only the filtered air; And
And an inner skin that airtightly shields the sorption layer,
The above-
Powder activated carbon for sorption of toxic substances;
A binder mixed with the powdered activated carbon and composed of mucilaginous material and cured by drying or heating; And
A liquid solvent mixed with the binder and evaporated or dissipated by heat treatment;
The above-
88 to 70 wt% of the activated carbon, 5 to 30 wt% of the binder, and the remainder of the solvent,
The above-
And a flow control additive added to the binder to control the flowability of the binder,
The flow control additive is comprised of from 0.5 to 15 wt%
The activated carbon is formed to a particle size of 5 탆 to 10 탆 ,
The above-
A plurality of pores having a size that prevents permeation of the toxic substance are formed,
Wherein the binder is composed of at least one of aqueous urethane, epoxy, silicone, phenol, and polyamic acid,
Wherein the solvent is at least one selected from the group consisting of alcohol, water, ethylene glycol, butyl carbitol, butyl cellosolve,
Wherein the flow control additive is composed of a surfactant,
The above-
And is formed in the form of a vinyl film on the surface of the outer cover by being coated on the surface of the outer surface of the outer cover by curing, and is formed to have a thickness of 10 to 25 탆 and spaced apart from one surface or both surfaces of the outer surface Fabric structure of toxic material protective suit which is characteristic. A water-repellent air-permeable sheath;
An intermediate jacket corresponding to the outer jacket, the jacket interposed between the outer jacket and the outer jacket to limit the penetration of the filtered air; And
And an inner skin that airtightly shields the intermediate blood,
The intermediate blood,
And a filter for absorbing the toxic substance from the fluid flowing through the outer shell to restrict the penetration of only the filtered air, Characterized in that it is limitedly permeable,
The intermediate blood,
And the filter sheet is separated from the outer skin and the inner skin, and the toxic substance is sorbed in the fluid flowing into the inner skin through the outer skin as the sorbent layer is applied and printed on the surface of the thick film on one or both sides, An extra layer of breathable material,
The above-
Powder activated carbon for sorption of toxic substances;
A binder mixed with the powdered activated carbon and composed of mucilaginous material and cured by drying or heating; And
A solvent in the liquid phase which is mixed with the binder and evaporated or dissipated by the heat treatment,
The above-
88 to 70 wt% of the activated carbon, 5 to 30 wt% of the binder, and the remainder of the solvent,
The above-
And a flow control additive added to the binder to control the flowability of the binder,
The flow control additive is comprised of from 0.5 to 15 wt%
The activated carbon is formed to a particle size of 5 탆 to 10 탆 ,
The above-
A plurality of pores having a size that prevents permeation of the toxic substance are formed,
Wherein the binder is composed of at least one of aqueous urethane, epoxy, silicone, phenol, and polyamic acid,
Wherein the solvent is at least one selected from the group consisting of alcohol, water, ethylene glycol, butyl carbitol, butyl cellosolve,
Wherein the flow control additive is composed of a surfactant,
The above-
The intermediate foil is formed in the form of a vinyl film on the surface of the intermediate foil as it is applied on the surface of the intermediate foil and hardened, and is formed to have a thickness of 10 to 25 탆 and is spaced apart from one surface or both surfaces of the intermediate foil Fabric structure of toxic material protective suit which is characteristic. delete delete delete delete delete delete delete

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