KR20170110540A - Absorbent for cbrn-agent and adsorption filter for toxic agent thereby, and protective suit for toxic-agent and filter manufacturing method therefor - Google Patents

Abstract

The present invention relates to an adsorbent for a cis-halide agent, a fabric by the same, and a manufacturing process therefor. SUMMARY OF THE INVENTION Powder activated carbon mixed with the matrix and adsorbing toxic substances; A solvent in which the activated carbon is mixed with the mixed matrix; And a soluble particulate filler composed of a plurality of fine particles mixed with the matrix and adhered to the activated carbon together with the solvent, the fine particulate filler being provided in the matrix with bubbles in the form of bubbles as the bubbles are extracted and removed from the matrix to be cured . The present invention can provide pores on the outer peripheral surface of activated carbon through the particulate filler.

Description

FIELD OF THE INVENTION [0001] The present invention relates to a process for producing an adsorbent for a cyanide agent, an adsorbent filter for toxic substances, TOXIC-AGENT AND FILTER MANUFACTURING METHOD THEREFOR}

The present invention relates to an adsorbent for a cyanide agent, an adsorption filter for toxic substances, and a process for producing a protective pack for toxic substances and an adsorbent filter for toxic substances therefrom. More particularly, The present invention relates to an adsorbent for a cyanobacterial agent which can improve the adsorption performance of a substance and can be reused after washing because the activated carbon does not fall off during washing, and an adsorption filter for toxic substances by the adsorbent and a adsorbent filter for toxic substances .

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, 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 "Protection of NBCs and Protection of NBCs".

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 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 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 sorbent needs to be produced in the form of beads, the production cost is excessively high, the production cost is increased, and the weight is increased. In addition, 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. Therefore, 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 the activated carbon is partially re- There is a problem.

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)

Disclosure of the Invention The present invention has been made to solve the problems as described above, and it is an object of the present invention to improve the adsorption performance of a toxic substance such as a CBC agent and a chemical substance harmful to human body by uniformly forming activated carbon, The present invention provides an adsorbent for a chemical reaction agent having a limited aeration function, an adsorption filter for the toxic substance, and a process for manufacturing the adsorbent filter for the toxic substance and the protective clothing for the toxic substance.

Particularly, there is provided an adsorbent for a cyanobacterial agent capable of forming a sheet-like adsorbent filter for adsorbing and filtering the toxic substances described above, and an adsorbent filter for the toxic substance by the adsorbent, and an adsorbent filter The present invention has been made in view of the above problems.

In order to accomplish the above object, the present invention provides an adsorbent for a cyanogen activator, comprising: powdered activated carbon which absorbs toxic substances; A matrix of a thermosetting or thermoplastic material in which the powdered activated carbon is mixed and solidified from a liquid phase to a solid phase; A solvent in which the powdery activated carbon is mixed with the mixed matrix; And a plurality of fine particles mixed with the solvent and adhered to the activated carbon powder, the soluble particulate filler providing pores formed in a bubble-like cavity in the matrix as the matrix is extracted and removed from the matrix to be cured, .

For example, the adsorbent is mixed with 24 to 75 parts by weight of the matrix with respect to 100 parts by weight of the activated carbon powder, and the solvent is mixed with 106 to 205 parts by weight with respect to 100 parts by weight of the powdered activated carbon, And 0.2 to 57 parts by weight based on 100 parts by weight of powdered activated carbon.

Alternatively, the above-described adsorbent may be composed of, for example, 5 to 30 wt% of the matrix mixed with 5 to 70 wt% of the activated carbon, 0.1 to 20 wt% of the particulate filler mixed in the matrix, and the balance solvent .

The matrix is preferably made of a material having at least one of elasticity, hydrophilicity, chemical resistance, heat resistance and moisture resistance, for example.

The solvent is preferably made of, for example, a material which is evaporated or dried or dissipated by heating.

The activated carbon preferably has a particle size of 0.1 to 300 탆.

The adsorbent according to the present invention may further comprise an additive added to the matrix mixed with the activated carbon to control the fluidity of the matrix.

The additive may be mixed in an amount of, for example, 0.1 to 50 parts by weight based on 100 parts by weight of the activated carbon.

The adsorption filter according to the present invention comprises a base layer; And a filter layer composed of the above-described adsorbent and provided on at least one side of the base layer to provide a thick-film adsorption layer for adsorbing toxic substances.

The filter layer may be formed with a pore having a size allowing water to permeate the one surface of the base layer while permitting permeation of air.

The filter layer is preferably spaced apart from the base layer.

It is particularly preferable that the filter layers are alternately formed on both sides of the base layer and are spaced apart from each other.

The manufacturing process according to the present invention includes the steps of preparing a coating agent for producing a coating agent with the above-described adsorbent; A printing step of printing a film layer on the base layer in the form of a thick film by applying the coating agent to one surface of the base layer to provide an adsorption layer; A forming step of curing the filter layer to form a sheet-like adsorption layer on the one surface of the base layer by the filter layer; And a pore forming step of extracting a particulate filler composed of a plurality of fine particles from the adsorbent forming the filter layer and forming pores made of bubble type cavities in the filter layer by the extracted particulate filler.

The printing step may include, for example, arranging a screen on the base layer at intervals of a gap; Applying the coating agent comprising the adsorbent to the screen; And a transfer step of transferring the coating material onto the surface of the base layer by pressing the coating material and passing the coating material through the screen.

The printing step may include, for example, applying a coating agent to the printing surface of the gravure printing plate; A printing plate setting step of causing the gravure printing plate to face the base layer; And a transfer step of bringing the gravure printing plate into close contact with the base layer and transferring the coating material applied on the printing surface to the surface of the base layer.

The printing step may be performed, for example, by printing the coated film on a surface of the base layer through a printing machine to form a thick film.

The forming step may include, for example, a heating step of heating the filter layer printed on the base layer and solidifying the filter layer into a sheet form; And a cooling step of cooling the filter layer to a predetermined temperature.

The pore forming step may include, for example, contacting the filter layer with a reactive agent for extracting the particulate filler from the filter layer to extract the particulate filler from the filter layer through a chemical reaction between the reactive agent and the particulate filler, Extraction step; And a reactive agent removing step of removing the reactive agent from the filter layer.

Alternatively, the manufacturing process may include a step of preparing a coating agent using an adsorbent for fire retardant based on a matrix in which powdered activated carbon for adsorbing toxic substances is mixed as a main component; A spacer forming step of forming projection-shaped spacers on the surface of the base layer to which the coating material is applied, in a state of being spaced apart; A printing step of filling the coating material between the spacers to print a filter layer made of the coating material in a form of a thick film on the base layer; And a filter forming step of curing the filter layer to form a sheet-shaped adsorption layer by the filter layer on the surface of the base layer.

The coating agent preparation step may include, for example, a solvent mixing step of adding a solvent to the matrix; Injecting a soluble particulate filler consisting of a plurality of particulates adhering to the powdered activated carbon and providing a pore of bubble-like cavities in the filter layer as it is cured and removed from the filter layer; And a stirring step of mixing the matrix into which the solvent and the particulate filler are introduced together with the powdered activated carbon and mixing them.

The coating agent preparation step needs to further include an additive addition step in which an additive for controlling the fluidity of the matrix is added.

The spacer forming step may include a step of preparing a phase change material, which is applied to the surface of the base layer to which the coating material is applied and is formed at a height corresponding to the thickness of the filter layer, ; A phase change material applying step of applying the phase change material to the surface of the base layer in a spaced apart state; And a curing step of curing the phase change material to provide protrusions in the base layer.

Preferably, the phase change material preparation step comprises preparing the phase change material of the coating material or liquid type urethane, epoxy, nylon, acrylic, or colloidal or paste-like activated carbon raw material.

The phase change material applying step is characterized in that the phase change material is applied to the surface of the base layer in a dot or mesh form to separate the phase change material from the surface of the base layer.

The printing step includes, for example, a screen placing step of placing a printing screen through which the coating film is to be transferred, onto the spacer; And a coating agent filling step of filling the coating agent on the screen to fill the space between the spacers so as to form the filter layer on the base layer.

The coating agent filling step may be carried out, for example, in a coating step of applying the coating agent comprising the adsorbent to the screen; And a transferring step of transferring the coating agent for the filter layer between the spacers of the base layer by pressing the coating agent and passing the coating agent through the screen.

The printing step may be performed by applying the coating agent between the spacers with a printing machine.

The adsorption filter according to the present invention can be manufactured as a toxic material protective garment after being manufactured by the above-described process.

The present invention is based on the finding that a matrix in which powdered activated carbon is mixed is cured to form a sheet form so that the activated carbon is uniformly arranged to improve the adsorption performance of toxic substances and the activated carbon does not fall off during washing, The fabric of the protective clothing can be reused after being washed, and even if the fabric of the protective clothing is wrinkled or washed, the adsorbent and activated carbon for the chemical activator do not fall off from the fabric of the protective clothing, The fit feeling is improved by the elasticity of the cured matrix.

Particularly, a soluble particulate filler composed of a plurality of fine particles is extracted from the matrix to provide fine pores formed by bubble-like cavities in the matrix, so that the toxic substance can be guided to the activated carbon through the pores communicating with the activated carbon, The surface of the activated carbon can be maximally prevented from being shielded by the matrix, and thus the specific surface area of the activated carbon can be maximally stably secured.

Since the matrix is composed of a material having elasticity, hydrophilicity, chemical resistance, heat resistance and moisture resistance, it is possible to improve the feeling of fit as described above by providing an elastic force, to ensure solubility by hydrophilicity, And durability against heat due to moisture resistance can be improved as well as water resistance can be improved. For this purpose, an environmentally friendly aqueous urethane can be used alone for adhesion to fibers even under low temperature curing conditions, 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.

In addition, by providing the matrix and the sheet-like filter layer therefrom with a solvent, which is evaporated or dried or dissipated, fine pores are formed in the filter layer so that the activated carbon contained in the matrix, that is, Since the toxic substances can be supplied together, the sorption performance can be greatly improved.

Also, since the activated carbon has a size of 0.1 mu m to 300 mu m and has an excellent effective area, the sorption performance of activated carbon can be improved.

In addition, since the additive is added, not only the printing property of the coating agent can be improved, but also the physical properties such as dispersibility and stability can be improved.

In addition, since the filter layer for adsorbing toxic substances is formed in the form of a thick film on the base layer, the adsorption filter composed of the filter layer and the base layer can be easily manufactured in the form of a single fabric, and the filter layer is formed The rigidity of the filter layer is partially weakened so that the flexibility of the adsorbing filter in the form of a fabric can be further secured and the flexibility of the far-end adsorption filter can be secured when the filter layer is alternately formed on both sides of the base layer As well as being able to filter toxic substances from both sides of the base layer.

In addition, since the filter layer made of the coating agent is printed on the base layer and then cured, the filter layer is integrally formed in the base layer in the form of a sheet, so that the adsorption filter in the form of a fabric can be easily manufactured, Since it is printed on the base layer through gravure printing, it is possible to print with a thin film, and the printed filter layer is cured by heating, so that the filter layer can be stably formed in a short time.

Furthermore, the filter layer is brought into contact with the reactive agent chemically reacting with the particulate filler to extract and remove the particulate filler, so that the particulate filler can be easily removed.

In addition, the thickness of the filter layer can be easily increased because the protrusions are formed on the base layer and then printed, and the spacer can be easily formed by forming the spacer using the phase change material, And is applied to the base layer in the form of dots or meshes, so that the gap between the spacers can be easily separated as well as the coating agent can be easily filled between the spacers.

Lastly, when the protective material for toxic substances is produced by the adsorption filter as described above, the toxic substances can be purified by the activated carbon in which the pores are secured by the particulate filler, the activated carbon is not lost even in repetitive washing, Excellent fit due to flexibility.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a longitudinal sectional view showing an adsorbent and a raw fabric for a chemical activator according to an embodiment of the present invention; FIG.
FIG. 2 is a conceptual view showing the adsorbent shown in FIG. 1; FIG.
3 is a block diagram illustrating a process of manufacturing an adsorption filter for toxic substances according to an embodiment of the present invention;
FIG. 4 is a longitudinal sectional view showing the base layer shown in FIG. 1; FIG.
5 is a vertical cross-sectional view illustrating a process of forming a filter layer on the base layer shown in FIG. 4;
FIG. 6 is a conceptual view showing an embodiment of the fabric shown in FIG. 1; FIG.
FIG. 7 is a conceptual view showing another embodiment of the fabric shown in FIG. 1; FIG.
8 is a condition table showing conditions of screen printing applied to the manufacturing process of Fig. 3;
FIG. 9 is a table showing experimental results of an adsorption filter manufactured by the manufacturing process of FIG. 3;
FIG. 10 is a flowchart showing a performance test evaluation method of an adsorption filter manufactured by the manufacturing process of FIG. 3; And
11 is a flow chart showing the washing process of the adsorption filter manufactured by the manufacturing process of FIG.

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

As shown in Fig. 1, the adsorbent for a chemical activator according to an embodiment of the present invention includes powdered activated carbon 11, a matrix 12, a solvent S and a particulate filler A.

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 is cured to provide a sheet-like adsorption layer as described later. Such matrix 12 is excellent in adhesion to fibers even under low-temperature curing conditions, for example, and is excellent in adherence to fibers, and imparts elasticity to the adsorption layer, thereby improving the durability of the adsorption filter according to the embodiment of the present invention Acrylic or melamine resin which is excellent in moisture resistance, hardness and moldability according to the required properties, and epoxy, silicone, phenol and polyamide having adhesiveness, strength, chemical resistance and heat resistance And the like can be used singly 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 the matrix 12 as shown in FIG. 1 and adsorbs toxic substances through pores (not shown). 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. The activated carbon 11 is composed of powder so as to be easily mixed with the 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.

As described above, the activated carbon 11 can be cured at a low temperature and is excellent in ductility, so that it can be used as an urethane resin mainly used for a product requiring elasticity, an acrylic, a melamine resin excellent in moisture resistance, hardness and moldability, Is mixed with a matrix 12 made of at least one of epoxy, silicone, phenol, and polyamic acid having chemical resistance and heat resistance.

The activated carbon 11 is preferably formed with a particle size (particle size) of 0.1 to 300 탆. 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 coal rather than coconut. 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 solvent 12 is mixed with the matrix 11 as shown in Fig. 1 to prevent the matrix 11 from hardening too quickly. The solvent (S) may be composed, for example, of at least one material having compatibility with other components and having physical properties suitable for curing and working conditions. The solvent (S) is preferably composed of a material that 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 required time for workability. 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. Thus, 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 with the matrix 12 together with the activated carbon 11 and the solvent S as shown in Fig. The particulate filler (A) is preferably composed 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. 2 (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 bubble-like cavities in the outer peripheral surface of the activated carbon 11 as shown in FIG. 2 (b). That is, the pores H form fine pores in the form of bubbles as shown in FIG. 12 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 is dried or dispersed upon curing of the matrix 12. Alternatively, the particulate filler A may be extracted in a separate extraction solvent, i. E., The matrix 12 via 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.

Here, the above-described pores H are formed by the cavities of the particulate filler A composed of fine particles, and are formed to have a size allowing permeation of gas such as air while preventing water from permeating into the cured 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 having a size capable of providing micropores capable of providing micropores capable of transmitting only air, and is removed from the cured matrix 12, Forming material that provides pores. When the matrix 12 is formed as a sheet in the form of a film as shown in Figs. 5 and 14 by the printing process, fine pores and cavities (fine pores) due to the particulate filler (A) and the solvent (S) Thereby ensuring air permeability.

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 the outer circumferential surface, and only a part of the activated carbon 11 is opened by the pores of the solvent S described above. However, when the particulate filler A is mixed with the matrix 12 and then removed, the activated carbon 11 has pores H formed on the outer circumferential surface thereof as shown in FIG. 12, 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 adsorbent according to the embodiment of the present invention is mixed with 100 parts by weight of activated carbon (11) in an amount of 24 to 75 parts by weight of the matrix (12). 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 adsorbent is mixed with 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) . The solvent (S) is preferably composed of about 37 wt% to 72 wt%.

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%, desired pores (H) can not be expected. When the content of the particulate filler (A) exceeds 20 wt%, the viscosity of the matrix 12 becomes high. Solvent (S) promotes 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 above-mentioned adsorbent may further include an additive that controls the fluidity of the matrix 12 as the case may be. The additive may be composed of, for example, a surfactant (including negative ions, positive ions, and neutral ions). The additive improves the printing property of a coating agent produced by the adsorbent in the form of an ink, and controls physical properties such as dispersibility and stability. In particular, the 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 during printing or printing, and printing property, And keep it uniform.

The additive is preferably composed of about 0.035 wt% to 17.5 wt% such that the additive is mixed in an amount of 0.1 to 50 parts by weight based on 100 parts by weight of the activated carbon (11). When the content of the additive is less than 0.035 wt%, the thixotropy of the above-mentioned coating agent is high and smooth printing is impossible. When the content exceeds 17.5 wt%, the thixotropy is lowered and the workability is bad, Is blocked by the matrix 12, and the adsorption performance is deteriorated.

The adsorbent according to the embodiment of the present invention constituted as described above is prepared by mixing the solvent (S), the activated carbon (11) and the particulate filler (A) in the matrix 12 by stirring and mixing them to form a liquid Thereby forming a coating agent. At this time, the adsorbent may be mixed after the addition of the above-mentioned additives.

The coating agent is applied to the planar base layer 20 as shown in Fig. 1 and then cured to provide a filter layer 10 that sores toxic materials. That is, the filter layer 10 is the sheet-like adsorption layer formed on the surface of the base layer 20 as the above-mentioned activated carbon 11 is contained in the coating agent. The filter layer 10 sores the toxic substance through the above-described pores H and pores and the above-mentioned activated carbon 11 to restrictively transmit only the purified air. Therefore, the base layer 20 provides an adsorption filter in which a filter layer 10 in the form of a thick film is integrally provided on the surface. That is, the adsorption filter is composed of a base layer 20 provided with a filter layer 10.

The base layer 20 may be made of a breathable material or a fabric made of water-repellent or water-repellent material. The base layer 20 may be composed of, for example, a fabric, leather, synthetic fiber, sponge or nonwoven fabric or film, or a membrane or mesh fabric formed with a plurality of fine pores. In particular, the base layer 20 is preferably made of a nonwoven fabric having air permeability and light weight.

As shown in FIG. 3, the filter layer 10 may be provided on one side or both sides of the base layer 20 to filter toxic substances according to required adsorption performance. The filter layer 10 is provided on one side of the base layer 20 as shown in FIG. 3 (a) when general adsorption performance is required. However, if stronger adsorption performance is required, And may be provided on both sides of the base layer 20 as shown. At this time, when the filter layer 10 is provided on both sides of the base layer 20, toxic substances can be filtered in two steps.

The filter layer 10 is provided with the porous pores H described above while the particulate filler A described above is removed as a result of the contact with the reactive agent as described later. The filter layer 10 is formed of the above-described porous pores (not shown) as the above-described solvent S is evaporated or dried or dispersed by a heat treatment process described later. These pores and pores H are sized to pass gas to the base layer 20, while preventing permeation of water or moisture. The filter layer 10 filters the toxic substance through the activated carbon 11 coupled to the matrix 12 when the gas phase poisonous substance flows into the pores and the pores H. [ However, the activated carbon 11 can adsorb and filter the liquefied toxic substances such as steam when they enter the filter layer 10.

The filter layer 10 is formed in the form of a sheet having a thin thickness as shown in Fig. 1, and has flexibility or elasticity because the matrix 12 is made of a material such as urethane, silicon or resin as described above.

On the other hand, the filter layer 10 is provided in the form of a sheet on the surface of the base layer 20 as a coating material composed of the above-described adsorbent is coated on the surface of the base layer 20 and printed in a thick film form and then hardened by heat treatment .

The filter layer 10 is formed on the surface of the base layer 20, for example, by screen printing, gravure printing, or the like to a thickness of about 2 to 100 mu m. This thickness is determined by the printing properties and the required sorbing performance. The filter layer 10 can be printed, for example, in a thickness of about 5 to 100 μm in the case of screen printing, and in the thickness of about 0.5 to 5 μm in the case of gravure printing.

The filter layer 10 can be used in the case of screen printing, for example, by a printing screen (plate, not shown) capable of printing by a 100 m thick by a poly 100 mesh, as shown in Fig. 5, at a pressure of 3 bar, A speed of 80 degrees, a squeegee hardness of 80 degrees, a squeegee angle of 75 degrees, a distance of 3 mm between the plate and the base plate. To this end, the printing screen is disposed (opposed to each other) at intervals of a gap in the upper part of the base layer 20, and then a liquid film coating agent is applied to the upper part. As the coating film is developed by the squeegee (not shown), the coating film is transmitted to the bottom of the mesh through the fine mesh of the mesh and transferred to the surface of the base layer 20. Thus, the base layer 20 is printed with the filter layer 10 in the form of a coating on its surface.

On the other hand, in the case of gravure printing, the filter layer 10 is printed on the surface of the base layer 20 on the surface of the thick layer through a printing surface of a gravure printing plate (not shown) having a plurality of fine grooves formed on one surface thereof. The gravure printing plate is pressed against the base layer 20 in a state in which the gravure printing plate is set in an opposing state to the upper portion of the base layer 20, 20). Thus, the base layer 20 is printed with the filter layer 10 in the form of a coating on its surface.

The filter layer 10 may be densely printed on the surface of the base layer 20 in a spaced-apart shape in the form of a dot, a lattice or an oblique line. That is, the filter layer 10 may be partially printed on the surface of the base layer 20. In particular, when the filter layer 10 is printed on both sides of the base layer 20 in a spaced apart state, the filter layer 10 may be staggered in alternating states on both sides as shown in FIG. 15 (a), the filter layer 10 is formed in a shape corresponding to the rims of the base layer 20 so as to substantially completely filter the air passing through the base layer 20. In this case, Alternatively, the border printed on either one of the two sides may be formed to be larger than the border printed on the other side, as shown in FIG. 15 (b), and may be printed so as to be slightly overlapped. Since the filter layer 10 is printed on both sides of the base layer 20 in such a manner as to be staggered, the toxic substances introduced into the separated gaps on one side are filtered at the other surface of the base layer 20, have.

The filter layer 10 is printed in the form of a thick film as it is coated on one side of the base layer 20 through a conventional printing machine such as a conventional inkjet or 3D printer, It is possible. In this case, the filter layer 10 is printed quickly and precisely.

Here, the above-described filter layer 10 may be printed on the surface of the base layer 20 via the spacer 10a as shown in Fig. The spacer 10a is formed in the shape of a protrusion on the surface of the base layer 20 before the filter layer 10 is formed as shown in Fig. The spacers 10a are formed as a plurality of spaced apart portions on the surface of the base layer 20 as shown.

The spacer 10a separates the printing screen SC, which is in close contact with the base layer 20, from the surface of the base layer 20 as shown. Then, the spacer 10a is filled with the coating film that has passed through the printing screen SC by the above-described method, as shown in Fig. That is, the coating agent is filled in the gap between spaced apart spacers 10a. Therefore, the thickness of the coating agent is determined by the height of the spacer 10a.

 As a result, the spacer 10a is a component for increasing the thickness of the filter layer 10. Describing this in more detail, in the above-mentioned screen printing method, the thickness of the coating film to be printed on the base layer 20 is limited due to the nature of the printing screen SC. However, the printing screen SC can increase the thickness of the coating film when the spacer 10a is provided as described above. Accordingly, the filter layer 10 can be formed thicker on the surface of the base layer 20 when the thickness of the coating layer is increased by the spacer 10a. Therefore, the filter layer 10 can contain a larger amount of the activated carbon 11, the particulate filler A and the solvent S, so that the sorption performance can be improved. That is, since the activated carbon 11 and the pores H and pores are formed in the filter layer 10, the toxic substance can be more smoothly filtered as the overall specific surface area of the adsorption filter is expanded.

On the other hand, the coating agent may be charged between the spacers 10a by the above-described printing machine instead of the above-described printing screen SC. Thus, the fillet layer 10 is printed quickly and precisely on the surface of the base layer 20 in the form of a thick film.

On the other hand, the spacer 10a is made of a phase change material which solidifies from a liquid phase to a solid phase. The spacer 10a can be composed of, for example, the above-mentioned coated and liquid type urethane, epoxy, nylon, acrylic, or active carbon raw material in colloidal or paste form. The spacer 10a is formed in a protrusion shape on the surface of the base layer 20 as being spaced apart from the surface of the base layer 20 with a height corresponding to the thickness of the desired filter layer 10. At this time, the spacers 10a may be spaced apart from the surface of the base layer 20 as they are applied to the surface of the base layer 20 in the form of dots or meshes. Then, the spacer 10a is adhered to the surface of the base layer 20 as it is cured by drying or heating.

On the other hand, the filter layer 10 formed by the spacer 10a may be composed of multiple layers unlike the one shown. In this case, the filter layer 10 is printed in a single layer on the surface of the base layer 20 by the printing method using the spacer 10a described above, and then another filter layer 10 It can be printed and formed into multiple layers. That is, the base layer 20 is formed by forming the first filter layer 10 on the surface after the spacer 10a is formed and by repeatedly applying another spacer 10a and 2 As the secondary filter layer 10 is sequentially formed again, a multi-layered filter layer 10 is provided. As a result, the filter layer 10 is formed in a multi-layered structure, and the thickness thereof can be further increased, thereby increasing the content of the activated carbon 11 at the same time. Therefore, as the thickness of the filter layer 10 increases, the permeation time of the toxic substance is delayed, and the sorption performance is greatly improved.

For example, the filter layer 10 exhibits a sorption performance of about 200 mm ² / g when formed as one layer with a thickness of about 30 탆, but when it is formed with three layers with this thickness, The sorbing performance is about 600 mm < ² > / g, which is three times as high as the sorption performance. Thus, the filter layer 10 may be comprised of a single or multiple layers depending on the sorption performance required.

Consequently, the filter layer 10 can be formed into a plurality of layers by the spacer 10a so that the substantial thickness can be increased, and the sorption performance can be greatly enhanced by such an expansion of the thickness.

On the other hand, as described above, the filter layer 10 printed on the base layer 20 has a thickness of about 80 to 200 占 폚, particularly about 120 to 180 占 폚 for about 2 to 25 minutes, particularly 4 to 15 minutes And adheres to the surface of the base layer 20 in a sheet form while being hardened at the surface of the base layer 10 as heat treatment (heating). At this time, the above-mentioned solvent (S) is evaporated or dissipated by the heat treatment process.

The filter layer 10 is stably fixed to the surface of the base layer 20 as it is heated and cooled at room temperature as described above. Such a filter layer 10 can be rapidly cooled by water cooling or cold air, but it is preferable to slowly cool the filter layer 10 by air cooling at room temperature as described above for the stability of the structure and the stability of fixation. Thus, the filter layer 10 forms one monolith as it is virtually bonded to the base layer 20. That is, the filter layer 10 and the base layer 20 provide a single-piece adsorption filter.

On the other hand, as the cooled filter layer 10 comes into contact with the above-mentioned reactive agent, the particulate filler A of the above-mentioned adsorbent is extracted and removed. The filter layer 10 is contacted with a reactive agent (solvent) such as a degassing agent or a defoaming agent for extracting them through chemical reaction with ammonia or Freon or chlorine, nitrogen, or carbon dioxide, as described above, so that the particulate filler A is removed . To this end, the filter layer 10 may be immersed or washed in a liquid phase reaction agent. 2, the pores H are formed on the outer circumferential surface of the activated carbon 11 as the particulate filler A is extracted by the reactive agent for recovering the particulate filler A, .

The filter layer (10) is removed from the reactant and the reactant is removed as it is dried. However, the filter layer 10 may be removed by a method other than drying, for example, washing with water or the like.

On the other hand, the above-described spacer 10a may have a multi-layer structure as shown in Fig. In this case, the spacers 10a are formed primarily by being spaced apart from the surface of the base layer 20 as shown in the figure. Then, the spacers 10a are separated from each other by a printing process as described above, 10). ≪ / RTI > The spacer 10a, which is formed secondarily on the surface of the filter layer 10, is filled with the coating material again between the spaced gaps and hardened. Therefore, the thickness of the filter layer 10 can be made thicker, and thus the activated carbon 11 is increased, so that the sorbing performance is improved. As described above, when the spacer 10a is formed in a multilayer structure and then a coating agent is additionally filled, the thickness of the filter layer 10 can be easily made thick to a desired thickness.

On the other hand, the above-described base layer 20 may be constituted by a covering OT of a toxic material protective clothing such as a chemical protective clothing as shown in Fig. That is, the filter layer 10 may be provided on the envelope OT as shown. At this time, it is preferable that the filter layer 10 is printed on the inner surface (inner surface) of the envelope OT as shown in the figure, and is integrally provided on the surface of the envelope OT. The outer cover OT may be formed of a fabric that is not easily vented, such as an aramid fabric. However, it is preferable that the outer cover OT is composed of a fabric that can be water-repellent and oil-repellent, 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.

Alternatively, the above-mentioned base layer 20 may be composed of an inner skin IN disposed inside the outer skin OT as shown in Fig. That is, the filter layer 10 may be provided on the surface of the inner skin IN as shown in FIG. Such an inner skin IN may be made of a non-breathable fabric, such as a film, but it is preferably made of a material of a breathable material such as a nonwoven fabric typically applied to a protective garment. As shown in the drawing, the inner layer IN is preferably provided on at least one surface of the filter layer 10, and in particular, the filter layer 10 is preferably provided on a surface facing the outer surface OT. The endothelium (IN) can filter toxic substances that have permeated the envelope (OT) through the filter layer (10).

Alternatively, the base layer 20 may be composed of an extra layer 22, which is separate from the outer layer OT and the inner layer IN, as shown in FIG. The extra layer 22 may be provided as an intermediate ply (MD) between the envelope OT and the endothelium IN as shown. The extra layer 22 may be made of a non-breathable material as described above, but is preferably made of a breathable material. As shown in the drawing, the extra layer 22 may be configured to filter the toxic substance by providing the filter layer 10 on either side of the both sides, or the filter layer 10 may be provided on both sides to filter toxic substances in multiple stages from both sides It is possible.

Herein, the above-mentioned intermediate ply MD can be shielded by the additional layer 30 of the breathable material, either outside the filter layer 10 or outside of the extra layer 22, as shown in Fig. The additional layer 30 may be made of the same material as that of the base layer 20 or the extra layer 22 and may be bonded to the filter layer 10 or the extra layer 22 through the adhesive layer A made of an adhesive. But may be superimposed on the extra layer 22 in an unattached state.

The additional layer 30 is attached to both sides of the extra layer 22 provided with the filter layer 10 as shown in Fig. 7, depending on the required shielding performance, i.e., the filtering performance of the toxic substance permeated through the filter layer 10 Alternatively, it may be configured to be attached to only one side of the extra layer 22. That is, the additional layer 30 may be attached to one or both surfaces of the extra layer 22 provided with the filter 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, the intermediate pellets MD can filter toxic substances in multiple stages through the extra layer 22 and the additional layer 30, so that the adsorption performance is improved.

The additional layer 30 may be spaced apart from the extra layer 22 provided with the filter layer 10, as described above. That is, the additional layer 30 may be provided separately from the extra layer 22. In this case, the additional layer 30 provides a space for diffusion of the toxic substance with the extra layer 22. Thus, the additional layer 30 can diffuse toxic substances in the gas phase through the space.

The extra layers 22 provided with the filter layers 10 may be formed in a plurality of layers and may be attached to each other or attached with the additional layers 30 interposed therebetween, Or an additional layer 30 may be interposed in the separated gap.

As a result, the adsorption filter according to the embodiment of the present invention, which is composed of the filter layer 10 and the base layer 20, can be used as a cloth, a lining, an intermediate, or a fabric for a toxic material protective clothing such as a chemical protective clothing . In other words, the protective material for toxic substances can be produced by the above-described adsorption filter.

As described above, the fabricated protective fabric fabricated by the adsorption filter made up of the base layer 20 and the filter layer 10 was manufactured by various methods and the results are shown in FIG. 9. As shown in the experiment, Activated carbon, binder and filler were mixed with the solvent of the remaining part. As shown in the drawings, the raw materials having the adsorption filter according to the present invention were tested in Examples 1 to 15 by adsorption filters having various composition ratios and the adsorption capacities before and after washing were measured. In addition, the US military products ("US Army" in FIG. 9) and the Korean military products ("Korean Army" in FIG. 9) simply sprayed with the activated carbon powder mentioned in the prior art were tested together as comparative examples. 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 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. 10 to adsorb toxic substances for a predetermined 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 filter layer (sorbent) was calculated by substituting the calibration data on the calibration curve based on the analysis data to calculate the remaining concentration.

In the measurement of the washing performance, a specific detergent as shown in FIG. 11 was 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. 9, the washing performance in Example 1 was excellent, but the adsorption performance was not exhibited due to the lack of the adsorption capacity before and after washing due to the insufficient mixing amount of the activated carbon 11. In Example 2, The water repellency of the adsorbent layer was not sufficient and the washing resistance was lowered. In Example 3, washing resistance was excellent, but the pores H could not be formed on the outer circumferential surface of the activated carbon 11, The specific surface area of the adsorbent 11 was not maximally ensured and the adsorption performance was deteriorated. In the case of 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. Examples 5 and 6 showed that the metrics 12) was sufficient so that the washing resistance was secured, but the ratio of the activated carbon 11 to the particulate filler A was inadequate, thereby causing a problem of printability. The printing performance and the adsorption performance were improved by fixing the content of the matrix 12 securing the washing durability while changing the composition of the activated carbon 11 and the particulate filler A through 10 in Example 7. In 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, adsorption performance tended to be improved but washing durability tended to decrease. In Example 12, The mixing ratio of the matrix 11, the matrix 12 and the particulate filler A was suitably adjusted to exhibit an adsorption capacity required for adsorption performance before and after washing. In the case of these embodiments, the pores H are formed on the outer peripheral surface of the activated carbon 11 by the extracted particulate filler A, so that the specific surface area of the activated carbon 11 is maximized, . Further, the thickness of the filter layer 10 is increased by the spacer 10a, and the content of the activated carbon 11 is increased naturally, the adsorption performance is further improved. In addition, when the filter layer 10 is composed of multiple layers, the adsorption performance is further enhanced.

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.

Thus, the adsorbent according to the embodiment of the present invention and the adsorbing filter according to the present invention clearly show that when the activated carbon 11, the matrix 12 and the particulate filler A are mixed at an optimum ratio, I could see through the experiment. Therefore, according to the adsorbent of the present invention having the above-described structure and the adsorption filter therefor, the activated carbon 11 is uniformly formed, the adsorption performance of the toxic substance is improved, and the activated carbon does not fall off during washing, Can be reused after washing.

In addition, since the adsorbent is composed of the powdery activated carbon 11, the matrix 12, the solvent, and the particulate filler A, an appropriate viscosity is ensured, so that not only printing is easy but also excellent workability in fabric production is obtained. It is possible to provide excellent wearing comfort and excellent durability when used as the outer skin OT or the inner skin IN of the protective garment having a severe crease, as well as to prevent the dropping of the activated carbon 11 almost permanently.

14, the filter layer 10 may be formed in the shape of a circle or an ellipse on the surface of the base layer 20. Alternatively, the filter layer 10 may be formed in a shape of a triangle, Or a hexagonal shape. At this time, the filter layer 10 is formed in a spaced-apart shape with the spacer 10a as shown in the figure, and the spacer layer 10a can be formed in a shape as described above as the coating film is filled between the spacer 10a have. These filter layers 10 are equally spaced on the surface of the base layer 20 as shown. Thus, the filter layer 10 is made up of a plurality of spaced apart, or spaced, gaps, to communicate air through the base layer 20.

The base layer 20 having the filter layer 10 formed on one side as described above is formed in a manner such that the toxic substance is filtered through the air communicated with the separated gap of the filter layer 10 as described above, As shown in FIG. At this time, the base layers 20 are stacked such that the filter layers 10 are staggered as shown in FIG. 16 (b). Accordingly, the air communicated in the upper base layer 20 is filtered through the filter layer 10 provided in the lower base layer 20. Since the air is communicated to the base layer 20 in the laminated state in a spaced-apart space of the filter layer 10, ventilation is improved as compared with the case where the filter layer 10 is provided on the entire surface. That is, the adsorption filter having the above-described structure has improved air permeability. Of course, it is obvious that such an adsorption filter can be provided in the envelope OT, the inner envelope IN, or the intermediate envelope MD described above.

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.

10: Filter layer 11: Powder activated carbon
12: Matrix 20: Base layer
22: Extra Layer 30: Additional Layer
OT: envelope IN: endothelium

Claims (13)

Powdered activated carbon which is toxic substances;
A matrix of a thermosetting or thermoplastic material in which the powdered activated carbon is mixed and solidified from a liquid phase to a solid phase;
A solvent in which the powdery activated carbon is mixed with the mixed matrix; And
A soluble particulate filler composed of a plurality of fine particles mixed with the solvent and adhered to the activated carbon, together with the solvent, to provide air bubbles in the matrix as the matrix is extracted and removed from the matrix to be cured; And an adsorbent for a cyanobacterial agent. The method according to claim 1,
The matrix is mixed in an amount of from 24 to 75 parts by weight based on 100 parts by weight of the activated carbon powder and the solvent is mixed with from 106 to 205 parts by weight with respect to 100 parts by weight of the powdered activated carbon and the soluble particulate filler is mixed with 100 parts by weight By weight based on the total weight of the adsorbent. The method according to claim 1,
Wherein the matrix is made of a material having at least one of elasticity, hydrophilicity, chemical resistance, heat resistance and moisture resistance,
Wherein the solvent is composed of a substance which is evaporated or dried or dissipated by heating. Base layer; And
A filter layer composed of an adsorbent for a chemical reaction agent according to any one of claims 1 to 3 and provided on at least one side of the base layer to provide a thick film adsorption layer for adsorbing toxic substances; Adsorption filter for toxic substances. 5. The filter according to claim 4,
And a pore having a size that permits permeation of air while waterproofing one surface of the base layer. 5. The filter according to claim 4,
And is formed on the base layer so as to be spaced apart from the base layer. A protective garment for a toxic substance produced by an adsorption filter for a toxic substance according to claim 4. A step of preparing a coating agent for producing a coating agent with an adsorbent for a chemical reaction agent according to any one of claims 1 to 3;
A printing step of printing a film layer on the base layer in the form of a thick film by applying the coating agent to one surface of the base layer to provide an adsorption layer;
A forming step of curing the filter layer to form a sheet-like adsorption layer on the one surface of the base layer by the filter layer; And
And a pore forming step of extracting a particulate filler composed of a plurality of fine particles from the adsorbent forming the filter layer and forming pores made of bubble type cavities in the filter layer by the extracted particulate filler Manufacturing process of adsorption filter. 9. The method according to claim 8,
A screen arrangement step of arranging the printing screens on the base layer at intervals of a gap;
Applying the coating agent comprising the adsorbent to the screen; And
And a transfer step of transferring the coating agent onto the surface of the base layer by pressing the coating agent onto the screen to transfer the coating agent onto the surface of the base layer. 9. The method according to claim 8,
A coating agent applying step of applying the coating agent to the printing surface of the gravure printing plate;
A printing plate setting step of causing the gravure printing plate to face the base layer; And
And a transfer step of bringing the gravure printing plate into close contact with the base layer to transfer the coating material applied on the printing surface to the surface of the base layer. 9. The method according to claim 8,
Heating the filter layer printed on the base layer to solidify the filter layer into a sheet form; And
And a cooling step of cooling the filter layer to a predetermined temperature. 9. The method of claim 8,
A particulate filler extracting step of bringing the filter layer into contact with a reactant for extracting the particulate filler from the filter layer and extracting the particulate filler from the filter layer through a chemical reaction between the reactant and the particulate filler; And
And a reactive agent removing step of removing the reactive agent from the filter layer. An adsorption filter for a toxic substance protective preparation produced by the manufacturing process according to claim 8.

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