RU2798937C1 - Composition of synthetic detergent with antibacterial effect - Google Patents

Abstract

FIELD: detergent composition for textiles.

SUBSTANCE: composition of a water-based liquid detergent for washing textiles while imparting antibacterial properties contains a cationic polymer of hydroxyethyl cellulose with a degree of substitution of the cationic charge from 0.01 to 0.20, a surfactant, a fatty acid and water, according to the invention contains a reducing agent silver ions and a monodisperse colloidal solution of silver ions in an aqueous dispersion with the following content of components, wt. %: cationic polymer of hydroxyethylcellulose - 0.05-0.4, surfactant - 5-30, fatty acid - 2-15, silver ion reducer - 1.5-2.5, monodisperse colloidal solution of silver ions - 1, 5-15, water - up to 100.

EFFECT: invention provides antimicrobial effect and preservation of this effect for a long time.

1 cl, 3 dwg, 2 tbl, 1 ex

Description

The invention relates to the production of synthetic detergents (CMC). It can be used for washing textiles made of cotton, linen and synthetic fabrics both in everyday life and in industrial laundries and imparting bactericidal properties to them.

Currently, for washing textiles made of cotton, linen and synthetic fabrics, many CMCs have been developed and are being produced, most of which are based on anionic (surfactants) or nonionic (surfactants) surfactants (surfactants), including synthetic fatty acids, ethoxylated fatty alcohols, sulfonates, monoalkylamides, etc. In addition to the base, various additives that improve the quality of washing can be included in the CMC composition: bleaches, optical brighteners, perfume fragrances, mineral additives (silicates, clay, etc.), enzymes, defoamers, and etc. [Vernikov, Ya.N., Processing of textile products in aqueous solutions of CMC / Ya.N. Vernikov, V.F. Androsov. - M.: Legpombytizdat, 1986. - 143 p.].

Known detergent containing surfactants, soluble complexing agent - sodium tripolyphosphate, useful additives - sodium bicarbonate and carbonate, sodium chloride, fillers - sodium silicate, sodium sulfate, anti-resorbent - carboxymethylcellulose (CMC), optical brighteners, fragrances, defoamer, water [US Pat. 2100428 Russian Federation, IPC C11D 1/83 (1995.01), C11D 1/83 (1995.01), C11D 1/22 (1995.01), C11D 1/66 (1995.01), C11D 3/04 (1995.01). Powdered detergent for washing fabrics / Kapuskina I.V., Morgunova T.S., Chumaevsky V.A.; applicant and patent holder Closed Joint-Stock Company "FK". - No. 95119073/04; dec. 11/13/95; publ. 27.12.97].

Known powdered detergent for washing fabrics containing alkylbenzenesulfonate, non-ionic surfactants, sodium tripolyphosphate, sodium metasilicate, soda ash, carboxymethyl cellulose, peroxosolvate, fragrance and sodium sulfate [US Pat. 2177986 Russian Federation, IPC C11D 1/86 (2000.01), C11D 3/39 (2000.01), D06L 1/12 (2000.01). Powder detergent / Smirnov A.S., Burygin O.P., Klimova A.L., Golubeva S.A., Tsvetkova I.N.; applicant and patent holder Closed Joint Stock Company "EKOHIMMASH". - No. 99116929/04; dec. 02.08.99; publ. 10.01.02, Bull. No. 1].

Known detergent containing anionic and nonionic surfactants, zeolite, modifying additives such as sodium tripolyphosphate, sodium carbonate, bleaching components, sodium sulfate, CMC, defoamer, and percarbonate having an average particle size of 500 to 1000 microns [US Pat. 2182164 Russian Federation, IPC C11D 3/39 (2000.01), C11D 3/12 (2000.01), C11D 3/06 (2000.01), С01В 15/10 (2000.01). Sodium percarbonate, method for selecting sodium percarbonate, detergent composition / James A.P., Horne G.R., Resler R., Parvane S, Pardini R., Delhi P.; applicant and patent holder SOLVAY INTEROX (Societe Anonymous) (BE). - No. 98119399/04; dec. 03/27/97; publ. 10.05.02, Bull. No. 13.].

Known tool containing wt. %: 8-13 sodium alkylbenzenesulfonate or mixtures thereof with sodium alkylsulfonate or sodium salts of higher fatty acids; 0.01-5 polyoxyethylene glycol esters of stearic acid and/or 0.01-5 ethoxylated fatty alcohols; 21-24 sodium tripolyphosphate; 1-4 colored granular sodium tripolyphosphate RHODIA-PHOS; 1-2 sodium salts of a copolymer of acrylic and maleic acids; 0.5 sodium ethylenediaminetetraacetate; 1 sodium salt of nitrilotriacetic acid; 0.5 sodium carboxymethylcellulose; 4 sodium silicate soluble; 1.5 enzyme preparation "Totalase"; 0.25 optical brightener; 5-10 soda ash; 12 sodium percarbonate; 2-4 tetraacetylethylenediamine; 0.2 perfume fragrances; 8 water and the rest sodium sulfate, and the detergent, if necessary, additionally includes 0-2 ethoxylated alkylphenols; 0-2 anti-resorption additives "DAR"; 0-0.5 polyvinylpyrrolidone and 0-0.2 polymethylsiloxane defoamer [US Pat. 2177985 Russian Federation, IPC C11D 1/83 (2000.01), C11D 3/39 (2000.01), C11D 3/386 (2000.01), C11D 3/04 (2000.01), C11D 3/20 (2000.01). Synthetic detergent for washing and bleaching at low temperatures / Dubov A.A., Efremova E.V., Nosova N.A., Parchina V.A., Povroznik S.V., Farberova A.L.; applicant and patent holder Perm open joint stock company "PEMOS". - No. 2000132041/04; dec. 12/21/00; publ. 10.01.02, Bull. No. 1.].

Also known means used for washing and softening textiles, including, wt. %: 10 sodium alkylbenzenesulfonate or mixtures thereof with sodium alkylsulfonate; 5-8 polyoxyethylene glycol esters of stearic acid; 1-3 polyoxyethylated esters of synthetic fatty acid monoethanolamides or polyethylene glycol ethers of monoalkylphenols; 35 sodium tripolyphosphate or 25 sodium tripolyphosphate and 5 sodium citrate; 0.5 sodium carboxymethyl cellulose or 2 anti-resorption additives; 3 sodium silicate soluble; 0.5 polyvinylpyrrolidone; 0.15-0.2 optical brighteners; 5-10 sodium bicarbonate; 5 sodium chloride; sodium sulfate and water the rest, and the detergent, if necessary, additionally includes 0-5 sodium carbonate and 0-0.2 defoamer [US Pat. 2167190 Russian Federation, IPC C11D 1/83 (2000.01), C11D 3/075 (2000.01), C11D 3/10 (2000.01), C11D 3/20 (2000.01), C11D 11/02 (2000.01). Synthetic detergent with conditioning effect and method of its production / Dubov A.A., Efremova E.V., Nosova N.A., Parchina V.A., Povroznik S.V., Farberova A.L.; applicant and patent holder Perm open joint stock company "PEMOS". - No. 2000124184/04; dec. 09/22/00; publ. 05/20/01, Bull. No. 14].

Known means containing in wt %: anionic surfactants (surfactants) 1-14, sodium tripolyphosphate 20-30, sodium liquid glass 3.0 carboxymethyl cellulose 0.5-0.8, Acremon polycarboxylate 0.1- 1.5, soda ash 5-10, optical brightener 0.2-0.3, fragrance 0.05-0.1, sodium chloride 0.5-4.0, reaction product of ethoxylated isononylphenol, triethanolamine and sodium hydroxide 1- 14, water and sodium sulfate - up to 100. The agent may additionally contain non-ionic surfactants in the amount of 0-3%, sodium bicarbonate 0-5%, polyvinylpyrrolidone 0-0.3%, defoamer 0-0.2% [Pat.2259392 Russian Federation, IPC C11D 1/02 (2000.01), C11D 1/83 (2000.01), C11D 3/04 (2000.01), C11D 3/20 (2000.01), C11D 3/28 (2000.01). Synthetic detergent / Titov V.M., Voronin A.V., Shatov A.A., Gareev A.T., Krasnov V.A., Antipov V.A.; applicant and patent holder Open Joint Stock Company "SODA" (JSC "SODA") (RU). - No. 2003137910/04; dec. 12/29/03; publ. 27.08.05, Bull. No. 24].

Although many of these detergents satisfactorily remove dirt, stains and odors, effectively cleaning textiles (for example, clothing), none of them contains antibacterial components and does not provide textiles with protection against pathogenic bacteria and microorganisms for the entire time period from washing. before washing. In addition, the powder form of most CMCs and the alkaline environment resulting from their dissolution prevents obtaining an antibacterial effect, for example, with silver ions.

The closest technical solution prototype is the composition of the liquid detergent for washing water-based [US Pat. 2421506 Russian Federation, IPC C11D 1/83 (2000.01), C11D 3/20 (2006.01), C11D 3/37 (2006.01). Liquid laundry detergents containing a cationic polymer of hydroxyethyl cellulose / Gray P.D., Deput K.D.M., Lievens L.M.V., Vanneste F.E., Zuft C.O.; applicant and patent holder JE PROCTER AND GAMBL COMPANY. - No. 2008138401/04; dec. 04/05/2022; publ. 06/20/2011 Bull. No. 17] suitable for cleaning fabrics, and containing:

a) from 0.05 to 0.4% cationic hydroxyethyl cellulose polymer by weight of the composition with a degree of substitution of the cationic charge from 0.01 to 0.20;

b) from 5 to 30% surfactant by weight of the composition containing at least one anionic surfactant and at least one nonionic surfactant; And

c) 2 to 15% fatty acid by weight of the composition.

The composition has a liquid form and a neutral and/or slightly acidic environment (depending on the content of the components). Its main disadvantage is the absence of a component that imparts antibacterial activity.

The technical result of the invention is a detergent for washing textiles made of cotton, linen and synthetic fabrics both in everyday life and in industrial laundries, while imparting bactericidal properties to them.

This result is achieved by the composition of a water-based liquid detergent for washing products made of textile materials, containing a cationic polymer of hydroxyethyl cellulose, with a degree of substitution of the cationic charge from 0.01 to 0.20, a surfactant, a fatty acid and water, characterized in that which contains a reducing agent of silver ions and a monodisperse colloidal solution of silver ions in an aqueous dispersion with the following content of components, wt%:

cationic hydroxyethyl cellulose polymer 0.05-0.4 surface-active substance 5-30 fatty acid 2-15 silver ion reducer 1.5-2.5 monodisperse colloidal solution of silver ions 1.5-15

The achievement of the claimed technical result is due to the introduction of a water-based liquid detergent composition for washing a monodisperse colloidal solution of silver ions with a bactericidal effect, the preparation of which is described in the patent [US Pat. 2609176 Russian Federation IPC A61K 33/38 (2006.01); B01J 13/00(2006.01); B82B 3/00 (2006.01); B82Y 40/00(2011.01); C01G 5/00(2006.01); B22F 9/24(2006.01); B01D 53/62(2006.01); B01D 53/72(2006.01); B01D 53/86(2006.01). Monodisperse colloidal aqueous solution of silver ions with antimicrobial and antitoxic effects (options) and methods for their preparation / Gerasimenya V.P., Klykov M.A., Zakharov S.V., Khalangot M.O., Voronkov A.G. Mashkov V.V.; applicant and patent holder Gerasimenya V.P. - No. 2015122013 application. 06/09/2015; publ. 01/30/2017 Bull. No. 4.], which, together with the known features, provide antibacterial properties to the washed products.

The silver ion reducing agent is selected from the group of organic food acids, including citric acid or ascorbic acid.

• Citric acid (C ₆ H ₈ O ₇ ) (2-hydroxypropane-1,2,3-tricarboxylic acid or 3-hydroxy-3-carboxypentanedioic acid) GOST 908-2004;

• Ascorbic acid (C ₆ H ₈ O ₆ ) (gamma-lactone 2,3-dehydro-L-gulonic acid) GOST 4815-76.

As stabilizers of a monodisperse colloidal solution of silver ions, while maintaining its stability during the washing process, cationic hydroxyethyl cellulose polymers are used, which are usually introduced into detergent compositions to soften washed textiles, especially in combination with a surfactant and a fatty acid.

The cationic hydroxyethylcellulose polymers used in the present invention have a degree of cationic charge substitution from ~0.01 (one cationic charge per 100 polymeric repeat units) to ~0.20 (two cationic charges per 100 polymeric repeat units). Preferably, the cationic hydroxyethyl cellulose polymers useful in the present invention have a degree of cationic charge substitution from ~0.01 to ~0.1. The positive charge may be on the backbone of the polymers or on the side chains of the polymers.

Suitable cationic hydroxyethyl cellulose polymers include polymers that may or may not be hydrophobically modified and have a molecular weight of ~200,000 to ~800,000. Such cationic materials have repeating units of a glucose residue corresponding to the following structural formula I:

where R ¹ , R ² , R ³ each independently represents H, CH ₃ , (linear or branched) C _8-24 alkyl,

or mixtures thereof;

where n is from about 1 to 10;

Rx is H, CH ₃ , (linear or branched) alkyl C _8-24 ,

or mixtures thereof

where Z is a water-soluble anion, preferably chloride ion and/or bromide ion;

R ⁵ represents H, CH ₃ , CH ₂ CH ₃ or mixtures thereof;

R ⁷ represents CH ₃ , CH ₂ CH ₃ , a phenyl group, a linear or branched C _8-24 alkyl group, or a mixture thereof; And

R ⁸ and R ⁹ are each independently CH ₃ , CH ₂ CH ₃ , phenyl or mixtures thereof;

R ⁴ is H,

or mixtures thereof

where P is a repeat unit of an additional polymer formed by radical polymerization of a cationic monomer such as

where Z' is a water-soluble anion, preferably an ion of chlorine, bromine, or mixtures thereof, and q is from about 1 to about 10.

Water-soluble anions suitable herein include C _8-24 alkyl sulfates, C _8-24 alkyl alkoxy sulfates, preferably alkyl ethoxy sulfates, C _8-24 alkyl sulfonates, C _8-16 -

alkylbenzenesulfonates, xylenesulfonates, toluenesulfonates, cumenesulfonates, fatty alkylcarboxylates, chloride ions, bromine ions or mixtures thereof, while chloride and/or bromine ions are preferred.

Cationic hydroxyethyl cellulose may have alkyl substituents on the rings of the glucose residue of the polymer series. When such substitution is present, it may be from about 0% to 5% per glucose unit, more preferably from about 0% to 2% per glucose unit of the polymeric material.

Cationic cellulose may be slightly miscible with dialdehyde, such as glyoxyl, to prevent the formation of lumps, granules or other agglomerations when added to water at room temperature.

Cationic hydroxyethyl cellulose ethers having structural formula I also include commercially available ethers, as well as other materials that can be obtained by conventional chemical modification of commercially available materials.

Surfactants, according to the invention, are contained in the detergent composition in a ratio of 5 to 30 wt % and include at least one anionic (surfactant) and at least one nonionic (surfactant) surfactant.

According to the invention, ethoxylated alkyl sulfates and straight-chain alkyl benzene sulfonates can be used as surfactants. Surfactants of the formula R ¹ (OC ₂ H ₄ ) _n OH, where R ¹ represents a C ₁₀ -C ₁₆ alkyl group or a C ₈ -C ₁₂ alkylphenyl group, and n is from 3 to about 80, can be used as nonionic surfactants. in one embodiment, non-ionic surfactants are condensation products of C ₁₂ -C ₁₅ alcohols with at least about 5 to about 20 moles of ethylene oxide per mole of alcohol, for example, C ₁₂ -C ₁₃ alcohol condensed with about 6.5 moles of ethylene oxide per mole of alcohol .

Fatty acids, according to the invention, comprise from 2% to 15% by weight of the composition and include acids containing from about 8 to about 24 carbon atoms. Suitable fatty acids for the present invention include both saturated and unsaturated acids, as well as mixtures thereof.

Examples of the use of water-based liquid detergent compositions are shown in Table 1.

Tests of antibacterial properties were carried out by the disk method, assessing the magnitude of the delay in the growth of pathogenic microflora of microbial cultures around samples (mm) placed in the broth in the environment of pathogenic microorganisms. Antimicrobial activity was tested on the following test cultures:

- gram-positive - Staphylococcus aureus;

- gram-negative - Escherichia coli;

- microscopic fungi - Candida albicans.

The results are presented in table 2

The antimicrobial activity is clearly shown in Fig. 1, fig. 2 and FIG. 3 for test cultures: microscopic fungi - Candida albicans.

An analysis of the data presented in Table 2 shows that the antibacterial and fungicidal action of the test samples is at the required level for 5 days after washing with the developed composition. At the same time, the level of efficiency of inhibition of the activity of test cultures decreases slightly.

Claims (2)

The composition of a water-based liquid detergent for washing textiles while imparting antibacterial properties, containing a cationic polymer of hydroxyethyl cellulose with a degree of substitution of the cationic charge from 0.01 to 0.20, a surfactant, a fatty acid and water, characterized in that which contains a reducing agent of silver ions and a monodisperse colloidal solution of silver ions in an aqueous dispersion with the following content of components, wt. %: cationic hydroxyethyl cellulose polymer 0.05-0.4 surface-active substance 5-30 fatty acid 2-15 silver ion reducer 1.5-2.5 monodisperse colloidal solution of silver ions 1.5-15 water up to 100

Images