RU2226210C2 - Detergent composition for washing table-ware - Google Patents

Abstract

FIELD: detergents. SUBSTANCE: invention relates to liquid detergent composites used for washing glass, china, faience, ceramic, aluminum and other dishes and can be used for washing equipment in food industry and in plants of public nutrition also. Indicated detergent composition comprises the following components, wt.-%: non- ionogenic surface-active substance neonol, 3.5-4.0; anionic surface-active substance sulfonol, 2.6-2.8; anionic surface-active substance wolgonate, 0.75-1.0; sodium tripolyphosphate, 2.5-3.0; carbamide, 3.0-3.5; coniferous concentrate as a disinfecting addition, 0.75-1.0; perfume, 0.075-0.1; water, up to 100. Invention provides the enhanced detergent capacity and its economy in using. EFFECT: valuable properties of detergent composition. 2 tbl

Description

The invention relates to liquid detergent compositions for washing glass, porcelain, earthenware, ceramic, aluminum and other utensils, and can also be used to wash equipment in the food industry and catering.

It is known that for the preparation of dishwashing detergents, mixtures of surfactants of various chemical nature are used. The purpose of these mixtures is to achieve the greatest possible cleaning effect. In addition, dishwashing detergents should have the following properties: good foaming ability, homogeneity, low consumption and good skin compatibility. In addition, the consumer value of a detergent is also affected by its cost.

The closest in technical essence to the claimed composition is a washing composition for washing dishes (see patent No. 2106400, IPC C 11 D 1/00), containing a nonionic surfactant, alkaline agents: soda ash and sodium matasilicate, as a disinfectant and perfumes - coniferous concentrate "M", as a hydrotropic agent - glycerin and water.

This detergent has insufficient washing ability and is not economical to use due to its low viscosity.

The aim of the present invention is to increase the washing ability of the composition, its efficiency while maintaining cost.

This goal is achieved by the fact that the known washing composition containing a nonionic surfactant, an alkaline agent, hydrotrop, coniferous concentrate as a disinfectant, perfume and water, additionally contains as a anionic surfactant a mixture of sulfonol and volgonate as a nonionic of surfactant in the composition, neonol is used, sodium tripolyphosphate is used as an alkaline agent, urea is used as a hydrotrope, in the following ratio of components ntov, wt.%:

Neonol 3.5-4.0

Sulfonol 2.6-2.8

Volgonate 0.75-1.0

Sodium Tripolyphosphate 2.5-3.0

Urea 3.0-3.5

Coniferous Concentrate 0.75-1.0

Fragrance 0.075-0.1

Water Up to 100%

Neonol - nonionic surfactant (surfactant) - ethoxylated monoalkylphenols based on trimers of propylene (isononyl), which is a technical mixture of polyethylene glycol ethers of monoalkylphenols of the following composition: C ₉ H ₁₉ C ₆ H ₄₀ (C ₂ H ₄ O) _n H, where C ₉ H ₁₉ is the isononyl alkyl radical attached to phenol mainly in the para position to the hydroxyl group, n is the average number of moles of ethylene oxide attached to one mole of alkyl phenols. It is a clear, oily liquid from colorless to light yellow in color at 25 ° C.

Sulfonol is an anionic surfactant (surfactant) is sodium alkylbenzenesulfonates based on n-paraffins, C _n H _{2n + 1} C ₆ H ₄ SO ₃ Na, where n = 10-13. This is a thick white pasty mass at room temperature.

Volgonate — an anionic surfactant — sodium alkanesulfonates of the composition (C _n H _{2n + 1} C _m H _{2m + 1} ) OCHSO ₃ Na, where n + m = 11-17. This is a pasty product in white.

Neonol, sulfonol and volgonate are soluble in water and provide emulsifying, solubilizing and wetting properties in the composition.

Sodium tripolyphosphate Na ₅ P ₃ O ₁₀ is a white powder, is introduced into the composition of the detergent composition as an alkaline additive. An important feature of sodium tripolyphosphate is its ability to form chelate compounds with calcium and magnesium cations, which determine the hardness of water. In addition, sodium tripolyphosphate affects the surface tension and wetting, thereby enhancing the washing ability of PAB, and also prevents the re-deposition of suspended particles of pollution on the surface being cleaned, contributes to the formation of foam and its stabilization, without causing irritation to the skin of the hands. Detergents, sodium tripolyphosphate content, have high efficiency and good stability, do not exfoliate during storage and cooling. Sodium tripolyphosphate as an inhibitor of metal corrosion also provides a satisfactory surface condition for aluminum (metal) dishes.

Urea (carbonic acid diamide NH ₂ CONH ₂ ) - colorless crystals or a white crystalline powder. The composition relics are introduced as a hydrotropic agent, which increases the solubility of surfactants and reduces the cloud point.

Coniferous concentrate is an orange powder; its solution has a pleasant yellow-green color. The composition is used as a dye and disinfectant.

As a perfume in the washing composition, any substances of this purpose, manufactured by domestic industry or imported, can be used.

The technology for preparing the washing composition consists in simple mixing of the components, namely: a third of the calculated amount of water is poured into the mixer, heated to 50-60 ° C, sulfonol, neonol are loaded, volgonate is mixed and the surfactant is completely dissolved. The remaining part of the calculated amount of water is poured into the reactor, sodium tripolyphosphate is poured into water in small portions and stirred until it is completely dissolved. After that, a solution of a surfactant mixture is pumped into the reactor, urea, coniferous concentrate and perfume are added, everything is thoroughly mixed. The composition is ready for use.

The main indicator of a washing composition is its washing ability. This parameter was determined using the "plate" test, which reproduces the usual washing in the kitchen: artificially contaminated faience plates and stainless steel plates were washed in 1 liter of a 1% detergent solution at 40 ° C. An artificial pollutant is a mixture of equal amounts (by weight) of fat: pork fat, margarine, butter and sunflower oil. On each plate, 1, 2 g of a mixture of fats was applied.

The test results of the variants of the proposed detergent composition and known for the prototype are given in table 1.

From the analysis of the tabular data, it can be seen that compositions No. 4, 5, 6 and 7 have a high washing ability. However, composition No. 7 with a slight increase in the degree of purification compared to composition No. 6 is much more expensive in price due to the large number of incoming components. The decrease in the number of incoming components (compounds No. 1, 2, 3) gives a decrease in the washing ability of the composition, which is unacceptable. Therefore, the optimal ratio of components, providing high washing ability of the composition while maintaining its price, have compositions No. 4, 5, 6.

Table 1 also presents comparative tests of the washing ability of the proposed composition and the known detergent according to patent No. 2106400, from which it can be concluded that the washing ability of the proposed composition is 4.4-4.7 times greater than that of the known one.

The proposed washing composition has a high washing ability and price at the level of the prototype due to the exclusion from the composition of such an expensive component as glycerin, and the use of cheaper surfactants.

In addition, the proposed detergent composition is more economical to use, because it is thickened due to the used surfactants and eliminates losses when taking a portion of the detergent.

The viscosity values for the newly developed detergent composition and a known agent are given in table 2. Viscosity was measured with a VPZh-2 viscometer.

Claims (1)

A dishwashing detergent composition containing a nonionic surfactant, an alkaline agent, a hydrotrop, a softwood concentrate as a disinfectant, perfume and water, characterized in that it additionally contains a mixture of sulfonol and volgonate as anionic surfactants, as a nonionic surfactant in the composition uses neonol, sodium tripolyphosphate as an alkaline agent, urea as a hydrotrope in the following ratio of components, wt.%: Neonol 3.5 - 4.0 Sulfonol 2.6 - 2.8 Volgonate 0.75 - 1.0 Sodium Tripolyphosphate 2.5 - 3.0 Urea 3.0 - 3.5 Coniferous Concentrate 0.75 - 1.0 Fragrance 0.075 - 0.1 Water Up to 100