RU2487163C1 - Agent for cleaning eyewear, television screens and monitors - Google Patents

Abstract

FIELD: chemistry.

SUBSTANCE: invention relates to an agent for cleaning eyewear, television screens and monitors, which contains 0.5-5.0 g/l nonionic surfactant, 0.001-0.05 g/l preservative, 0.25-1.0 g/l cellulose-based cationic polymer and optionally 0-200 g/l lower aliphatic alcohol and 0-0.1 g/l acidity regulator.

EFFECT: novel agent for cleaning eyewear, television screens and monitors, having improved anti-fog and antistatic properties.

1 cl, 5 ex, 5 tbl, 7 dwg

Description

The invention relates to the field of medicine, to new products of medical equipment, namely to new means for cleaning spectacle optics, as well as to means for caring for electronic computing, television and other complex household appliances having devices for visualizing information (screens, monitors, scoreboard, indicators).

In modern ophthalmology and optometry, the use of spectacle lenses is the most common method of vision correction. The progress of science and technology has led to the creation of a significant variety of materials (mineral, organic) for the manufacture of spectacle lenses and special optical coatings (mirror, antireflection, water and dirt repellent, hardening, multifunctional). The development of spectacle optics, in turn, led to the emergence of adequate means of caring for it. During operation, spectacle lenses inevitably become dirty, which leads to a deterioration in their optical performance and appearance. The nature of pollution is diverse: smoke, dust, cosmetics, pollen, secrets of the sebaceous and sweat glands, and other environmental factors. A simple wiping of the spectacle lens with a dry cloth or cloth is not acceptable, as it can damage the surface of the multilayer optical coating without removing any dirt. To date, means for the care of eyeglass optics have undergone a significant evolution and have evolved from simple alcohol or soap solutions to multifunctional systems that ensure the removal of all types of contaminants and give lenses anti-fog and anti-static properties [Scherbakova O.A. Anti-Aging Lens Care // Veko. - 2003. - No. 2. - S.66].

A significant problem when using glasses and other optical instruments is their fogging, which often occurs when moving between areas with different temperatures and humidity. Misting can be a serious threat to the health and life of people using corrective or safety glasses if it occurs while driving a car or airplane, during diving, hunting, military operations, and difficult and dangerous camera work.

The main way to prevent fogging of glasses and other optical devices is the hydrophobization of their surface, which complicates the process of moisture condensation. For hydrophobization of the surface, it is treated with special compositions containing sparingly soluble compounds in water - oil products, fats, waxes, synthetic silicon or organofluorine compounds.

In particular, there is known an antifog composition in the form of a paste containing an aqueous solution of an anionic surfactant related to sulfonates and petrolatum [US Pat. US No. 2414074 (1947) // Antifogging composition]. The specified tool effectively prevents fogging of organic glass such as methyl methacrylate, used for the manufacture of windshields for automobiles and aircraft.

Widely used cleaning compositions containing highly hydrophobic organosilicon compounds as modifiers of the cleaned glass surface. For example, silicone glycol derivatives are known to be used in conjunction with anionic ones [US Pat. US No. 3249550 (1966) // Glass cleaning composition] or nonionic [US Pat. US No. 4374745 (1983) // Cleaning compositions (IPC C11D 1/68, C11D 3/20)] detergents in aqueous-alcoholic solutions.

Known cleaner for glasses, in particular mirrors, with anti-fog action, containing an aqueous solution of an anionic or nonionic surfactant, glycol ether, xanthan gum and as a water-repellent surface of 0.01-1 wt.% Water-soluble polyoxyethylated polyalkylsiloxane with a molecular weight of 2000 up to 4000 Daltons [US Pat. US No. 5254284 (1993) // Glass cleaner having antifog properties (IPC C11D 3/075, C11D 3/22)].

The preparation of various perfluoroalkyl ethers of monomeric and oligomeric polyhydric alcohols and polycarboxylic acids, simultaneously having fat and water repellent properties [WO 02/072537 A2 (2001) // Water- and oil-repellency imparting ester oligomers enough perfluoroalkyl moieties (IPC C07C 311 )]. These compounds can be used for processing corrective and sunglasses, optical instruments, display screens, windows, car glasses and lighting, a variety of stone, metal, wooden, plastic surfaces, textiles, however, the compositions of specific products containing these perfluororganic compounds, and examples their use is not given.

Surface modifiers of perfluororganic nature related to polyesters are proposed, which when applied to the surface of optical devices (prisms, lenses, filters, mirrors), screens and displays of various designs also prevent their fogging and pollution [US application No. 2009/2088728 A1 (2009) / / Surface modifier (B32B 3/10, C07F 7/08, C07D 5/00, C07F 7/14)].

An alternative way to prevent fogging of optics, on the contrary, is to hydrophilize the surface, which ensures the absorption of small drops of water condensate and their fusion to form a uniform transparent film.

It is known to use water-soluble salts of ammonium and alkali metals formed by hydrophilic macromolecular compounds, for example, copolymers of acrylonitrile or methacrylonitrile with acrylic, methacrylic or ethylene sulfonic acid, as well as aminomethylated polystyrene for treating glass surfaces to give them anti-fog properties [pat. US No. 3777792 (1973) // Method of protecting glass against fogging (IPC C09K 3/18, B32B 17/10)]. However, the proposed method for applying the obtained copolymers to glass surfaces involves the use of highly polar organic solvents (dimethylformamide, dimethyl sulfoxide) and subsequent additional treatment with polyglycidyl methacrylate or 5% hydrochloric acid, which makes this method practically unsuitable for individual use.

Known cleaning solutions with antifog properties, containing alkyl sulfonates as surfactants, lower alkyl esters of ethylene glycol or propylene glycol, lower aliphatic alcohols and copolymers of maleic anhydride with various vinyl monomers in an amount of 0.01-1 wt.% [US Pat. US No. 3939090 (1976) // Antifogging cleaner (IPC C11D 7/50)]. The use of these solutions for processing window glasses provides a good anti-fog effect, however, examples of the use of these solutions for cleaning spectacle and other optics are not described in the patent description.

The closest in technical essence to the proposed invention is a means for cleaning spectacle optics called Goog Look, produced in the form of a spray LLC NPF Medstar (Russia) [TU 9392-010-34704936-2008], containing a nonionic surfactant - tween 20 (polyoxyethylene 20 sorbitan monolaurate) in an amount of 2 g / l, polyethylene glycol PEG-1500 as anti-fog and antistatic substances in an amount of 5 g / l and chlorhexidine bigluconate as a preservative in an amount of 0.02 g / l. Good Look effectively cleans the surface of eyeglass lenses and sunglasses and significantly reduces fogging.

The aim of the invention is the development of a new tool for cleaning spectacle optics, as well as television screens and monitors with improved anti-fog and antistatic properties.

The essence of the invention is the introduction of a cleaning agent containing a nonionic surfactant, a lower aliphatic alcohol, an acidity regulator and a preservative, an additional component is a highly hydrophilic cationic cellulose-based polymer containing quaternary trimethylammonium and dimethyldodecylammonium groups. After applying such a tool to the treated surface and evaporating the solvent, the cationic cellulose-based polymer forms a non-crystallizing hydrophilic thin transparent film with high electrical conductivity, which provides its pronounced anti-fog and antistatic effects.

Cellulose-based cationic polymers under the commercial name SoftCat types SL, SK and SX, containing from 0.8% to 2.6% elemental nitrogen, were developed by a subsidiary of Dow Chemical by Amerchol Corporation (USA) and are widely used as conditioning additives for shampoos [US Pat. US No. 7781386 B2 // Shampoo compositions containing a combination of cationic polymers (C11D 3/37, C11D 9/36)], hair dyes [US application No. 2007/0017041 A1 // Colorants for keratin fibers (A61Q 5/10] , tissues, skin [US application No. 2010/0255044 A1 // Method of depositing particulate benefit agents on keratin-containing substrates (A61K 8/64, A61K 8/02, A51Q 5/10)], in soluble indicator films [US application No. 2010/02856604 Al // Dissolvable film with detection functionality (G01N 31/22, G01N 21/00)] and finished dosage forms [US application No. 2008/0249136 A1 // Antimicrobial composition and method (A01N 43/40)]. The use of these polymers is based on their ability to effectively interact with negatively charged surfaces, predominantly containing keratin (skin, hair), acid dyes and other substances of anionic nature.SoftCat and other cellulose-based cationic polymers have never been used in eyewear and other optics cleaning products.

As a nonionic surfactant in the composition of the new cleaning agent, polyoxyethylated sorbitan monoesters - Tween 20, Tween 40 and Tween 80 manufactured by ICN Biomedicals, Inc., USA were used. The content of these detergents in the range of 0.5-5.0 g / l provides a high washing ability of new cleaning agents, which was estimated by the surface tension of the obtained solutions in comparison with the prototype and other imported and domestic analogues on the Russian market.

The presence in the composition of new means for cleaning lower aliphatic alcohols - ethyl (GOST 18300-87) or isopropyl (TU 2632-015-11291058-95) in an amount of 0-200 g / l provides a more effective removal of low-polar pollution of organic nature from the surface of spectacle lenses screens and monitors.

As acidity correctors, we used water-soluble non-volatile amino alcohols - ethanolamine (Panreac, Spain) and triethanolamine (TU 6-09-2448-72), which are widely used in the manufacture of cosmetics and finished dosage forms. The content of these correctors in an amount of 0-0.1 g / l determines the acidity of new cleaning agents in the range of 6-8 pH units, which ensures their inertness with respect to the material of most mineral and organic eyeglass lenses, television screens, monitors and special coatings for them. In the absence of the indicated correctors, the pH value of new cleaning agents is in the range 5.57-6.04, which in most cases is outside the acceptable range.

Due to the fact that some of the components of the new cleaning agents are biodegradable compounds (twins, cationic cellulose-based polymers), preservatives were introduced into the solutions, as chlorhexidine bigluconate (TU 9392-001-18885462-99), Acticide PHB polyhexanide 20 (Thor GMBH, Germany) or a mixture of quaternary ammonium salts under the trade name "Volgodes" (TU 9392-001-46058281-2006) in an amount of 0.001-0.05 g / l, which provides the necessary microbiological purity and the required shelf life.

As cationic cellulose-based polymers, we used Polymers of the SoftCat series manufactured by Amerchol Corporation (USA) of grades SL-30 (degree of cationic substitution - nitrogen content 0.8-1.1% N), SX-400H (2.4-2, 6% N) and SX-1300H (2.4-2.6% N). The content of these polymers in the composition of new cleaning agents in the range of 0.25-1.0 g / l provides not only the necessary antifog and antistatic properties, but also allows a wide range to change the viscosity and fluidity of the resulting solutions, which makes it possible to effectively use them as in the form of liquids and sprays (at medium and low viscosity), and in the form of wet wipes (at high viscosity of solutions).

The following examples illustrate the invention.

A brief description of the drawings.

Figure 1 shows a micrograph of a dried drop of the proposed cleaning agent according to example 1. On the glass surface, a uniform thin film and drops of a viscous transparent colorless liquid without crystalline and amorphous inclusions are formed. Rough edges of the film indicate good wetting of the glass surface.

Figure 2 shows a micrograph of a dried drop of the Good Look prototype product (LLC NPF Medstar, Russia). An irregular grid of thin needle crystals up to 0.5 mm long is formed with inclusions of droplets of a viscous opaque liquid up to 0.1 mm in size.

Figure 3 shows a micrograph of a dried drop of Super Optic analogue product (Bagi Ltd., Israel). A scattering of individual cubic crystals up to 0.15 mm in size is formed in a mixture with small prismatic crystals and liquid drops 0.02-0.05 mm in size.

Figure 4 shows a micrograph of a dried drop of Piiloset Lens Clean analogue product (Oy Finnsusp Ab, Finland). An irregular mesh is formed from a resinous opaque liquid with amorphous inclusions up to 0.05 mm in size.

Figure 5 shows a micrograph of a dried drop of the Lens Cleaner analogue product (Sang Jean Co., Ltd, South Korea). Dendrites of small prismatic crystals with a size of 0.02-0.03 mm are formed.

Figure 6 shows a micrograph of a dried drop of the Cleaning Agent for Spectacle Lenses analogue (Carl Zeiss Vision, Germany). Dendrites of thin needle crystals are formed up to 1 mm long with the inclusion of particles of an amorphous substance with a size of 0.02-0.05 mm.

Figure 7 shows a micrograph of a dried drop of Snowter analogue (ArKa-Center 2000, Russia). An irregular mesh is formed from a resinous opaque liquid with dark amorphous inclusions 0.05-0.1 mm in size.

Example 1. The proposed cleaning agent based on polymer SoftCat SX-1300H. About 0.5 L of purified water is added to a 1 L volumetric flask, and with stirring on a magnetic stirrer at room temperature, 0.5 g of Tween 80, 0.25 g of SoftCat SX-1300H polymer, 0.05 g of triethanolamine and 5, 0 ml of an antiseptic solution obtained by diluting 5.0 ml of Volgodes (20% solution of quaternary ammonium salts) with purified water to a volume of 100 ml. 255 ml (200 g) of isopropyl alcohol are added and the volume of the solution is adjusted to the nominal value with purified water.

Examples 2-5. The proposed cleaning products based on SoftCat SL-30 and SoftCat SX-400H polymers are obtained in the same way. The quantitative composition of the proposed cleaning products is presented in table 1.

Table 1 Composition of new cleaning products Component Content (g / l) Example 1 Example 2 Example 3 Example 4 Example 5 Twin 20 - 1,0 2.0 - 5,0 Twin 40 - - - 2.0 - Twin 80 0.5 - - - - Ethanol - - - fifty - Isopropyl alcohol 200 one hundred - - - Ethanolamine - - - 0,025 - Triethanolamine 0.05 0.10 0.05 - - SoftCat SL-30 polymer - - - 0.5 1,0 SoftCat SX-400H Polymer - 0.25 0.5 - - SoftCat SX-1300H Polymer 0.25 - - - - HC Bigluconate * - 0.01 0.02 - - Polyhexanide * - - - 0.001 0.005 Volgodes * 0.05 - - - - * Note: in terms of 100% of the active substance

The most important physical and chemical characteristics that determine the consumer qualities of eyeglass optics cleaning products are: surface tension (a decrease in the value of which correlates with washing power compared to distilled water), a pH value (which defines the limits of applicability for various lens materials and their coatings) and viscosity (depending on the value of which one or another method of using a particular agent can be selected). The pH value of the proposed cleaning agents according to examples 1-5 (Table 1), the prototype, as well as five other imported and domestic analogues, widely available on the Russian market, was determined using a Mettler Toledo 320 pH meter ( Switzerland) with temperature correction of measurement results. Surface tension was measured using a stalagmometer. Kinematic viscosity was measured using a VPZh-1 capillary viscometer at a temperature of 25 ° C. The research results are presented in table.2.

As follows from the data in Table 2, the pH values of all the proposed cleaning products and most of the analogues, with the exception of Cleaning Agent for Spectacle Lenses (No. 10) and Snowter (No. 11), correspond to an environment that is close to neutral, which allows apply them to the vast majority of spectacle lenses. The washing ability of all new and all known cleaning agents is high enough to effectively remove various types of contaminants from the surface of the lenses. At the same time, new cleaning agents have a significantly higher viscosity compared to peers, which results in the formation of a more uniform film when using the tool in the form of a spray or in the form of a wet towel.

table 2 Physicochemical properties of eyeglass optics cleaners No. Name of funds pH Surface tension, N / m (change in% relative to water) Kinematic viscosity, mm ² / s (change in% relative to water) one Proposed According to Example 1 6.49 30.71 (-58) 4.644 (+359) 2 Proposed According to Example 2 7.95 35.21 (-52) 2.278 (+125) 3 Proposed According to Example 3 6.80 43.30 (-40) 1,885 (+86) four Proposed According to Example 4 6.68 38.55 (-47) 3,718 (+267) 5 Proposed According to Example 5 6.04 38.84 (-47) 5.536 (+447) 6 Good Look (000 NPF Medstar, Russia) 6.62 39.30 (-46) 1,049 (+5) 7 Super Optic (Bagi Ltd., Israel) 7.09 36.03 (-51) 1,703 (+70) 8 Piiloset Lens Clean (Oy Finnsusp Ab, Finland) 6.98 37.12 (-49) 1.004 (+0) 9 Lens Cleaner (Sang Jean Co., Ltd, South Korea) 7.65 26.74 (-63) 1.016 (+2) 10 Cleaning Agent for Spectacle Lenses (Carl Zeiss Vision, Germany) 5.46 50.31 (-31) 1,042 (+3) eleven Snowter (000 ApKa-Center 2000, Russia) 8.18 36.79 (-49) 1,054 (+5)

As a rule, eyeglass and other optics cleaners are used by applying them to the surface to be cleaned with a damp cloth or by spraying a jet of liquid (sprays, aerosols) and then wiping them dry with a soft paper or cloth. In this case, the solvent that is part of the cleaning agent (water or its mixture with lower aliphatic alcohols, volatilizes, and non-volatile substances remain on the surface to be cleaned and a napkin. In this case, crystallization of certain components of the cleaning agent and crystalline crystals may occur substances can scratch and mechanically damage the surface of the lens or its coating.Therefore, one of the important requirements for means for cleaning optics is the lack of their full or partial crystallization upon drying.

To determine the ability of the proposed means, prototype means and analogue means to form crystalline substances after drying, microscopic studies were carried out. One drop of each agent with a volume of 0.2 ml was applied onto a glass slide using an automatic micropipette and dried at room temperature for 24 hours with protection from air dust. The obtained samples were examined using a Leica DM750 binocular optical microscope with a computer interface at 40x magnification. The research results are presented in Table 3 and in Fig. 1-7.

The results of microscopy indicate that the prototype and most of the analogues have in their composition easily crystallized components. Only analogue products Piiloset Lens Clean (Oy Finnsusp Ab, Finland) and Snowter (ArKa-Center 2000 LLC, Russia), when dried, form a viscous, resinous liquid on the glass surface, which, however, has dark opaque amorphous inclusions of an unclear chemical nature. In contrast, all the proposed cleaning agents according to examples 1-5 form thin films and separate drops of a viscous colorless transparent liquid that moistens the glass surface well, which does not contain any foreign inclusions. When rubbing this liquid on the surface of the lens, its mechanical damage is impossible.

Table 3 The results of microscopic studies of dried drops of eyeglass optics No. Name of funds The microstructure of dried drops one Proposed According to Examples 1-5 Homogeneous thin film and droplets of a viscous transparent colorless liquid without crystalline and amorphous inclusions 2 Good Look (LLC NPO Medstar, Russia) Irregular mesh of thin needle crystals up to 0.5 mm long with inclusions of droplets of a viscous opaque liquid up to 0.1 mm in size 3 Super Optic (Bagi Ltd., Israel) A scattering of cubic crystals up to 0.15 mm in size mixed with small prismatic crystals and liquid droplets of 0.02-0.05 mm in size four Piiloset Lens Clean (Oy Finnsusp Ab, Finland) Irregular mesh of resinous opaque liquid with amorphous inclusions up to 0.05 mm in size 5 Lens Cleaner (Sang Jean Co., Ltd, South Korea) Dendrites of small prismatic crystals 0.02-0.03 mm in size 6 Cleaning Agent for Spectacle Lenses (Carl Zeiss Vision, Germany) Dendrites of thin needle crystals up to 1 mm long with the inclusion of particles of an amorphous substance with a size of 0.02-0.05 mm 7 Snowter (ApKa-Center 2000 LLC, Russia) Irregular mesh of resinous opaque liquid with dark amorphous inclusions 0.05-0.1 mm in size

The antifog properties of the proposed cleaning agents, prototype agents and analogue agents were investigated in a direct manner. Two types of spectacle lenses were used - mineral lenses ULTRATHIN HI-INDEX 1.70 (Coming Glass Work, Thailand), which have no special coatings, and polymeric lenses GLOBAL LENS HI-INDEX 1.56 (Hanmi Swiss Optical Co., Ltd., South Korea), having a multilayer coating.

The processing of the lenses was carried out as follows: each lens was degreased with isopropyl alcohol, washed in running water using synthetic detergents, rinsed with purified water, and wiped dry with cotton buds. From a distance of about 10 cm, the studied cleaning agent was applied once with a spray gun, wiped dry, then the cleaning agent was applied again and the lens was dried in air for 5 minutes. Using a microfiber cloth, the lens was wiped in a circular motion, achieving full transparency, while the remnants of the cleaning agent (drops, stains) visible to the naked eye were absent on the lens surface.

Purified water was poured into a cylindrical glass vessel with an even upper section with a diameter of 6 cm and a height of 12 cm so that its level was 3 cm from the upper section of the vessel. The water temperature was maintained equal to 40 ± 1 ° C with slow stirring in laminar mode on a magnetic stirrer. Paper-printed text was placed under the base of the glass vessel. The vessel was covered from above with a lens treated with an appropriate cleaning agent, and the time elapsed from the moment the lens was placed on the vessel to the moment when the lower printed text was no longer readable due to fogging of the lens was recorded.

In the case of untreated mineral lenses, complete fogging occurred on average in 8.4 s. Anti-fog effect was considered pronounced if fogging of the treated lenses did not occur within 100 s. In the case of polymer untreated lenses, complete fogging did not occur, and the text below was readable, however, the surface of the lenses facing the water acquired high turbidity on average for 5.6 s. The lenses were treated with each cleaning and measuring agent five times, calculating the arithmetic mean of the determined parameters and standard deviation (Table 4).

Table 4 Anti-fog properties of spectacle optics cleaning agents No. Name of funds The average time of fogging, s Mineral lenses Polymer lenses one No processing 8.4 ± 1.1 5.6 ± 1.1 2 Proposed According to Example 1 > 100 15.8 ± 1.9 3 Proposed According to Example 2 > 100 22.2 ± 1.9 four Proposed According to Example 3 > 100 14.8 ± 2.7 5 Proposed According to Example 4 > 100 18.2 ± 2.5 6 Proposed According to Example 5 > 100 13.8 ± 3.0 7 Good Look (LLC NPF Medstar, Russia) > 100 8.8 ± 1.0 8 Super Optic (Bagi Ltd., Israel) 11.2 ± 1.6 6.6 ± 0.5 9 Piiloset Lens Clean (Oy Finnsusp Ab, Finland) > 100 11.2 ± 0.8 10 Lens Cleaner (Sang Jean Co., Ltd, South Korea) > 100 7.4 ± 1.5 eleven Cleaning Agent for Spectacle Lenses (Carl Zeiss Vision, Germany) 5.8 ± 1.6 5.6 ± 1.9 12 Snowter (LLC ArKa-Center 2000, Russia) > 100 6.8 ± 0.8

As follows from the data of Table 4, in the case of mineral lenses, all of the proposed cleaning agents according to examples 1-5, the prototype agent and a number of analogue agents have pronounced antifog properties: the condensate formed on the lens surface has the form of a thin water film, which is visually insignificant distorts the text below, but does not prevent its full reading. However, analogues of Super Optic (Bagi Ltd., Israel) and Cleaning Agent for Spectacle Lenses (Carl Zeiss Vision, Germany) practically do not affect the process of fogging of mineral lenses, despite the fact that the anti-fog effect is described in the annotation for their use.

In the case of polymer lenses, none of the cleaning agents provides a complete anti-fog effect, and in all cases the lenses acquire a high turbidity. However, the time of clouding of the lenses when using the proposed means for cleaning increases on average 3 times, while all other means-analogues and means of the prototype practically do not affect the process of clouding the surface of the polymer lenses. An exception is Piiloset Lens Clean (Oy Finnsusp Ab, Finland), when applied, the misting time is doubled. It was noted that all the cleaning agents used, with the exception of those proposed, practically do not wet the polymer eyeglass lenses, and the droplets formed after applying the agents easily roll off their convex surface.

The antistatic effect of the proposed cleaning agent according to example 2 in comparison with the prototype Good Look prototype (LLC NPF Medstar, Russia) was examined indirectly and evaluated by the degree of dustiness of the LCD TV screens (Samsung, model LE32B653T5WXRU) and a monitor (Acer, model P246H). The screens were pre-cleaned with a 20% isopropyl alcohol solution and wiped dry. The left third of the screens were wiped with cotton pads moistened with the proposed cleaning agent according to Example 2, and then wiped dry with other cotton pads. The right third of the screens were treated with Good Look (LLC NPF Medstar, Russia) in a similar way. The middle third of the screens remained unprocessed (control). After 4 weeks of operation, the settled dust was transferred from each part of the screens using a transparent thin adhesive tape onto glass slides and the number of dust particles with sizes greater than 0.01 mm that were in the field of view of the microscope was calculated per 1 sq. M. see the surface of the screen. Counting the number of dust particles was carried out for three different points along the height of each processed or untreated part of the screen. The results are presented in table.5.

Table 5 Dustiness of LCD screens No. Name of funds The average number of dust particles per 1 square. cm Tv screen Monitor one No processing 62 ± 8 179 ± 14 2 Proposed According to Example 2 15 ± 2 27 ± 5 3 Good Look (LLC NPF Medstar, Russia) 54 ± 4 94 ± 6

From the data of table 5 it follows that the proposed cleaning agent according to example 2 significantly reduces the dustiness of the LCD TV screens (on average 4.1 times) and the monitor (on average 6.6 times) that occurs during the month of their operation , and significantly exceeds the prototype tool in this indicator. The observed decrease in dust content is probably associated with the antistatic effect of the cationic cellulose-based polymer, which is part of the proposed cleaning agent, since this substance has an ionic nature and forms a thin film on the surface to be cleaned with high electrical conductivity, which helps to reduce the occurring point static charges.

Thus, a new effective tool for cleaning spectacle optics, television screens and monitors was developed, which additionally contains cationic polymers based on cellulose in an amount of 0.25-1.0 g / l, which has an increased anti-fog and anti-static effect.

Claims (1)

A means for cleaning spectacle optics, television screens and monitors, containing a nonionic surfactant, a preservative, a cationic cellulose-based polymer and optionally lower aliphatic alcohol and an acidity regulator in the following ratio of components, g / l:
Nonionic Surfactant 0.5-5.0 Lower aliphatic alcohol 0-200 Acidity regulator 0-0.1 Preservative 0.001-0.05 Cellulose-based cationic polymer 0.25-1.0 Water Rest

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