RU209209U1 - Protective filter overalls with self-degassing properties - Google Patents

Abstract

The utility model relates to the field of filter-type personal protective equipment for skin. Protective filter overalls with self-degassing properties, designed to protect the human skin from emergency chemically hazardous substances with basic properties, and toxic chemicals containing nitrogen, designed to be used with a gas mask, gloves and shoes, is a straight-cut jacket with a hood, passing in trousers are straight, while the shelf of the jacket part and the wide part of the trousers are fastened with a central side zipper, and the outer edge of the selection overlaps the zipper, and the protective valve is sewn to the shelf from the inside and is fixed with a textile fastener, the sleeves below the elbow are equipped with wristlets, pulled together with an elastic band, and the hood along the line of the front neckline has a tie made of a keeper tape, the ends of which are hidden in a pocket on the right side of the hood, the trouser part is additionally equipped with extensions with stripes sewn on the wrong side, the bottom of the sleeves and trousers have tabs with stitched with a stylish clasp, the hood has a strap with a textile clasp, and in the central part of the hood there is a strap with holders for fixing the hood around the volume of the head. Made from a textile material, which is a linen fabric after sulphite pulping, treated successively with "carbomol-gl", Mohr's salt, modified with polyacrylic acid and ethyl alcohol, having lignin in the fibers, as well as additional reactive groups of lignin sulfonic acids in the H-form - lignin-CH2-SO3H and methoxy groups - lignin-CH2OH. The technical result of the utility model is to increase the useful properties of the product, namely, to impart sufficient self-degassing properties to the protective filter overalls in relation to emergency chemically hazardous substances with basic properties and toxic chemicals containing nitrogen. 2 ill.

Description

The utility model relates to filter-type personal protective equipment for skin.

All over the world, including our state, work is underway to modernize the sets of individual combat equipment for a serviceman [Aleksandrov S. "Soldier of the Future" in Russian // magazine "Arms". - 2013. - No. 02. - S. 16-20.]. The filter-type personal protective equipment included in its composition does not fully meet the requirements of the customer. [Lepeshinsky I.Yu., Kutepov V.A., Polodeev V.P. etc. "Means and methods of radiation and chemical protection". - Omsk: Textbook OmSTU 2008, invention RU 2307691 A62D3]. These requirements include large weight and size characteristics of these funds and their lack of sufficient self-degassing properties.

In this regard, the development of protective filter overalls with high self-degassing properties in relation to emergency chemically hazardous substances with basic properties (AHOV OOS) and toxic chemicals containing nitrogen (TX SA) currently remains relevant.

The conducted studies have shown that the developed protective filtering overalls with self-degassing properties (KZF SS) differ from standard filter-type personal protective equipment in terms of cut and chemical composition, sufficient self-degassing properties in relation to emergency chemically hazardous substances with basic properties, and toxic chemicals containing nitrogen [Radutsky V.Yu., Shulzhenko V.N., Rubanov Yu.K. etc. "Means and methods of radiation and chemical protection". - Textbook Belgorod State University. V.G. Shukhov 2008].

The developed protective filter overalls with self-degassing properties differ from standard field uniforms in the chemical composition of the material, sufficient self-degassing properties in relation to hazardous chemicals, environmental protection and TX SA [Aleksandrov S. "Soldier of the Future" in Russian // magazine "Arms". - 2013. - No. 02. - S. 16-20.].

The conducted studies have shown that a filtering-sorbing self-degassing material has been developed for personal protective equipment for the skin from the effects of AHOV OOS and TX SA. It is a three layer material. The top layer is an insulating material, the middle layer contains a polymer and a chemically active component, the bottom layer is a textile material. The use of an insulating top layer significantly impairs the ergonomic properties of the material. The enzyme, a polypeptide with the properties of organophosphate hydrolase, acts as a chemically active component that degasses a poisonous substance (TX SA). It decomposes rapidly if the strict limits of storage temperature and humidity are not followed. The material has little storage and cannot recover its self-degassing properties. These shortcomings do not allow creating the required stocks of personal protective equipment for the skin from the developed material [Patent RU No. 2330717. Filtering-sorbing self-degassing material for personal protective equipment against the effects of organophosphorus compounds / E.N. Efremenko, V.V. Zavialov, N.V. Zavyalova, V.K. Gorelenkov, D.A. Gudkov, I.V. Lyagin, S.D. Varfolomeev, V.I. Singles; patent holder E.N. Efremenko, V.V. Zavialov, N.V. Zavyalova, V.K. Gorelenkov, D.A. Gudkov, I.V. Lyagin, S.D. Varfolomeev, V.I. Kholostov. - No. 2007102061/15; dec. 01/22/2007; publ. 10.08.2008].

The closest analogue is a protective material made by graft polymerization of polyacrylic acid on cotton fiber [RU No. 2287033 C1, 10.11.2006, D06M 14\20, p. 1 of the formula; example 11 in the description]. This material is intended for disinfection. The completeness of degassing of this material has not previously been determined.

Thus, it can be noted that at present there is no protective filter overall with self-degassing properties, made of a material with sufficient self-degassing properties in relation to AHOV OOS and TX SA.

The technical result of the utility model is to increase the useful properties of the product, namely, to impart sufficient self-degassing properties to the protective filter overalls in relation to emergency chemically hazardous substances with basic properties and toxic chemicals containing nitrogen.

Method for achieving a technical result

The specified technical result is achieved by using, as intended, a protective filtering overall made of a material with sufficient self-degassing properties in relation to hazardous chemicals, environmental protection and TX SA. The material is a linen fabric after sulfite pulping, treated successively with "carbomol-gl", Mohr's salt, modified with polyacrylic acid and ethyl alcohol. The use of the product is provided with a gas mask, gloves and shoes.

The essence of the utility model lies in the fact that the protective filter overalls are made of a material with sufficient self-degassing properties in relation to hazardous chemicals, environmental protection and TX SA. The material acquires useful properties when using linen fabric after sulfite pulping, its sequential treatment with "carbomol-hl", Mohr's salt, modification with polyacrylic acid and ethyl alcohol. Known features include: cutting and sewing protective filter overalls with self-degassing properties. The technical result is achieved by using a protective filter overall with self-degassing properties, in combination with a gas mask, gloves and shoes, by putting it on, fastening zippers, buttons, Velcro fasteners and sleeve cuffs. This allows you to protect the human skin from hazardous chemicals, environmental protection and TX SA and will not require its degassing.

Justification of compliance with the criterion of protectability "novelty"

The proposed technical solution is new, since it uses a new essential feature - a protective filter suit with self-degassing properties, made of a material with sufficient self-degassing properties in relation to hazardous chemicals, environmental protection and TX SA. The material is a linen fabric after sulfite pulping, treated successively with "carbomol-gl", Mohr's salt, modified with polyacrylic acid and ethyl alcohol. Known features include: cutting and sewing protective filter overalls with self-degassing properties. The use of protective filter overalls with self-degassing properties is provided with a gas mask, gloves and shoes.

The utility model is novel, since no one has previously produced a protective filter suit with self-degassing properties from linen material grafted with polyacrylic acid with sufficient self-degassing properties. It differs from the closest analogue in textile material - flax, not cotton, and, accordingly, the presence of lignin in it, which gives the material increased self-degassing properties, as well as a component in the formulation for a self-degassing coating [patent RU No. 2443446], the use of additional operations - treatment of the material with Mohr's salt, "carbomol-gl" and ethyl alcohol, the object of contamination is hazardous chemicals, environmental protection and TX SA, and not pathogenic microorganisms, as well as using it for a new purpose - self-degassing, and not disinfection.

Substantiation of compliance with the criterion of protectability inventive step

The proposed technical solution meets the condition of an inventive step, since a protective filter suit with self-degassing properties was not previously known, made from a material with sufficient self-degassing properties, which is a linen fabric after sulfite cooking, treated successively with Mohr's salt, "Carbomol-hl", modified polyacrylic acid and ethyl alcohol, in combination with personal protective equipment for respiratory organs and hands, shoes will protect human skin from hazardous chemicals, environmental protection and TX SA and will not require its degassing.

The closest analogue [patent RU No. 2287033] has not been studied in terms of such an indicator as the completeness of degassing. The difference between the obtained results and the data presented in patent RU No. 2287033 is that not cotton fiber was used, but linen fabric after sulphite pulping, etc. It is distinguished by the presence of lignin in its composition. Lignin imparts additional self-degassing properties to the studied materials, as well as a component in the formulation for a self-degassing coating in patent RU No. 2443446. The difference between the obtained results and the data presented in the patent RU No. 2287033 lies in the fact that additional operations were used with linen fabric - sulfite pulping, treatment with Mohr's salt and "carbomol-hl". The resulting linen fabric modified with polyacrylic acid had self-degassing properties, and differs from the protective material obtained by graft polymerization of polyacrylic acid on cotton fiber [patent RU No. 2287033] in claim 1 of the formula and example 11 of the description with a new purpose. In patent RU No. 2287033 in paragraph 1 of the formula and example 11 of the description, the material is intended for disinfection. In accordance with the definition set out in the Great Soviet Encyclopedia [Great Soviet Encyclopedia. - M .: Soviet Encyclopedia 1969-1978], disinfection is the methods and means of destroying pathogens on the routes of transmission from the source of infection to a healthy organism. The material used in protective filter overalls with self-degassing properties is designed for self-degassing. In accordance with the definition set out in the Great Soviet Encyclopedia [Great Soviet Encyclopedia. - M .: Soviet Encyclopedia 1969-1978], degassing is a reduction to acceptable standards of the degree of contamination with toxic substances, hazardous substances and TX objects (including clothing, etc.). In accordance with the "Medical Dictionary" [Medical Dictionary. - M.: Soviet Encyclopedia 1969-1978] natural degassing is synonymous with self-degassing. Based on this, the chemically active component, polyacrylic acid, acts on various damaging agents. In the case of the given example of patent RU No. 2287033, these are pathogenic microorganisms. For protective filter overalls with self-degassing properties, these are AHOV OOS and TX SA.

Considering the foregoing, protective filter overalls with self-degassing properties differ from the closest analogue - a material obtained by graft polymerization of polyacrylic acid on cotton fiber [patent RU No. , and not disinfection, as well as the presence of lignin in the fibers and, accordingly, additional reactive groups: lignin sulfonic acids in the H-form (lignin-CH ₂ -SO ₃ H) and methoxyl groups (lignin-CH ₂ OH) [Ivanov A .N. Physico-chemical bases of technology for the preparation of flax straw. - Thesis of Doctor of Technical Sciences: KTU. Kostroma. - 1989].

Justification of compliance with the criterion of protectability "industrial applicability"

The proposed technical solution is industrially applicable, since the combination of features characterizing it provides the possibility of fabric production, cutting, tailoring, long-term storage and regeneration. This is determined by the standard equipment of textile and clothing enterprises, laundries. The reagents necessary for the modification of linen fabric are multi-tonnage products and are used in the industrial production of diapers, absorbent diapers, polymers, that is, they are not unique. The reagents required for the regeneration of the modified linen fabric are large-scale products and are used in the chemical, automotive and other industries.

Information confirming the possibility of implementing the utility model

The utility model is a protective filter suit with self-degassing properties.

As a material for the manufacture of KZF SS, linen fabric after sulphite pulping was used, treated sequentially with "carbomol-gl", Mohr's salt, modified with polyacrylic acid and ethyl alcohol. The method of obtaining self-degassing textile linen material was as follows. It included the production of boiled pure linen fabric by sulphite-alkaline pulping, its treatment with Mohr's salt, stitching with "carbomol-gl", graft polymerization of acrylic acid and additional treatment with ethyl alcohol.

When obtaining boiled pure linen fabric by sulphite-alkaline pulping, the recommendations of the Scientific and Practical Center "Blesk" were used in the early 2000s. In sulfite-alkaline cooking, the reactor was filled with an aqueous solution containing soda ash (Na ₂ CO ₃ ) 18-24 kg/m ³ , sodium hydroxide (NaOH) 3.8-4.4 kg/m ³ and sodium sulfite (Na ₂ SO ₃ ) 6-16 kg/m ³ , raised the temperature to 366-368°K for 600-1200 seconds and boiled at this temperature for 3600-7200 seconds. In the process of sulfite-alkaline pulping in an alkaline medium, lignin was subjected to partial hydrolytic splitting into low molecular weight fragments containing reactive methoxyl groups (lignin-CH ₂ OH), which easily interacted with sodium sulfite to form sodium salts of lignin sulfonic acids (lignin-CH ₂ - SO ₃ Na). This effect is observed only in the specified range of the ratio of components in the solution and the cooking temperature.

Linen material after sulphite pulping was washed in water and converted into the H-form (lignin-CH ₂ -SO ₃ H) by treatment in ODN hydrochloric acid solution for 1200 seconds at room temperature with intensive circulation of the solution.

The resulting sample was flashed with "carbomol-gl". To do this, the fabric was dried. Drying of the fabric was carried out on the Tekstima drying and stenciling line. The dry material was impregnated with the Carbomol-GL solution on the Textima line for 60-300 seconds at room temperature. The solution consisted of "carbomol-hl" with a concentration of 200 kg/m ³ magnesium chloride (MgCI ₂ ) 8 kg/m ³ urea 4 kg/m ³ and water (the rest). Next, the material was dried and subjected to heat fixation at a temperature of 413-423°K for 180-300 seconds on the URTC line [Fridlyand, G.I. Finishing linen fabrics / G.I. Friedland. - M.: Light and food industry, 1982. - S. 305-307 p.].

Next, the reaction of graft copolymerization of acrylic acid was carried out on the obtained samples. To do this, the material was impregnated with Mohr's salt solution in a jigger. The material was treated with an 8-12% acrylic acid monomer solution. Bath modulus was 1:20 - 1:50. After raising the temperature of the solution to 333-353°K, H ₂ O ₂ was introduced into the system at a concentration of 20-50 mol/m ³ . Graft copolymerization of acrylic acid was carried out for 3600-7200 seconds.

After completion of the reaction, the graft copolymerization product was thoroughly washed with water. The material was dried on the Tekstima drying and spreading line to a constant weight. Next, the material was treated with an 8-12% aqueous solution of ethyl alcohol and dried on a drying and spreading line "Textima" to a constant weight. The static exchange capacity and physical and mechanical properties of carboxyl-containing flax material were determined.

Next, the fabric was cut and sewn KZF SS.

The claimed object is illustrated by the drawings shown in Fig. 1 and FIG. 2.

Overalls, which is a combination in one object of the upper part of clothing and trousers. The upper part of the garment is a straight-cut jacket with a hood and a fastener, which passes into the lower part. The lower part is straight trousers. Shelf fig. 1 (1) of the jacket part and the wide part of the trousers is fastened with the central side zipper of FIG. 1 (2), wherein the outer edge of the collar of FIG. 1 (3) covers the zipper of FIG. 1(2) and the safety valve of FIG. 1 (4) is stitched to the shelf from the inside and is fixed with the help of a textile fastener fig. 15.

The jacket part is made with a stitched hood of Fig. 1 (6), additionally provided with a calico lining of FIG. 1 (7). Undercut semi-barrels of Fig. 1 (8) jackets pass into the set-in sleeves of Fig. nineteen). In this case, the sleeves below the elbow are equipped with wristlets of Fig. 1 (10), pulled together with an elastic band of Fig. 1 (11), and the hood of Fig. 1 (6) along the line of the front cutout has a tie of FIG. 1 (12), from the keeper tape of FIG. 1 (13), the ends of which are hidden in the pocket of Fig. 1 (14) on the right side of the hood.

Reinforcing elbow pads Fig. 1 (15) and Fig. 2 (15), knee pads of Fig. 1 (20) and lei of Fig. 2 (19) are available on the sleeves and legs. The trouser part is additionally equipped with extensions fig. 1 (21) with studs of FIG. 1 (22).

The bottom of the sleeves and trousers have straps with a stitched textile fastener fig. 2 (23), the hood has a strap with a textile fastener of FIG. 2 (24), and in the central part of the hood of Fig. 1 (6) is the strap of FIG. 2 (26) with the holders of FIG. 2 (27) for fixing the hood according to the volume of the head.

In the jacket part at chest level there are two patch pockets fig. 1 (16) with valves of FIG. 1 (17), fastened with a button of FIG. 1 (18). The trouser part on the sides at the level of the hips has patch pockets of Fig. 1 (28) with valves of FIG. 1 (29), fastened with a button of Fig. 1 (30).

The above overalls are used as follows: the lower part of the overalls is put on over the underwear and chemical protective underwear. Then - service shoes, and the extension with the straps is tucked into the shoes, and the bottom of the trousers is straightened over the shoes, the straps are fastened with a textile fastener, and the protective valve is closed. Put on the top of the jumpsuit. Fasten the zipper, put on a gas mask, then a hood, and tighten the keeper tape to ensure a snug fit of the hood along the front cutout to the gas mask. The ends of the twill tape are hidden in a special pocket sewn onto the right side of the hood. The volume of the hood is regulated with the help of straps. They put on gloves, tucking the cuffs of gloves between the wristband and the sleeve, straighten the sleeves over the gloves, fasten the strap on a textile fastener.

Claims (1)

Protective filter overalls with self-degassing properties, designed to protect the human skin from emergency chemically hazardous substances with basic properties, and toxic chemicals containing nitrogen, designed to be used with a gas mask, gloves and shoes, which is a straight-cut jacket with a hood, passing in trousers are straight, while the shelf of the jacket part and the wide part of the trousers are fastened with a central side zipper, and the outer edge of the selection overlaps the zipper, and the protective valve is sewn to the shelf from the inside and is fixed with a textile fastener, the sleeves below the elbow are equipped with wristlets, pulled together with an elastic band, and the hood along the line of the front neckline has a tie made of a keeper tape, the ends of which are hidden in a pocket on the right side of the hood, the trouser part is additionally equipped with extensions with stripes sewn on the wrong side, the bottom of the sleeves and trousers have straps with a stitched with a textile clasp, the hood has a strap with a textile clasp, and in the central part of the hood there is a strap with holders for fixing the hood around the volume of the head, characterized in that it is made of a textile material, which is a linen fabric after sulphite cooking, treated successively with "carbomol-hl ”, Mohr’s salt, modified with polyacrylic acid and ethyl alcohol, having lignin in the fibers, as well as additional reactive groups of lignin sulfonic acids in the H-form - lignin-CH ₂ -SO ₃ H and methoxyl groups - lignin-CH ₂ OH.

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