RU2052499C1 - Composition for wetting linen - Google Patents

Abstract

FIELD: household chemistry. SUBSTANCE: proposed composition contains (%): nonionic surfactant 5-9, sodium carbonate 64-85 and water. Said surfactant is prepared on the base of mixture of polyoxyethylated synthetic primary fatty alcohols of C₁₂-C₁₄ fraction or of C₁₆-C₂₀ fraction or of polyoxyethylated primary fatty alcohols of C₁₀-C₁₈ fraction or of polyoxyethylated monoalkyl phenols on the base of propylene. EFFECT: improves quality of desired product. 4 tbl

Description

 The invention relates to the chemical industry, and in particular to household chemical compositions for soaking laundry before washing in order to improve washing results. The invention can be used in compositions of powdered and agglomerated cleaning and synthetic detergents.

 The range of products for pre-soaking cotton and linen products is mainly represented by phosphate products: Malva, Laundry Soaking Powder, Fospor, Foskan, Penguin.

 Means "Malva", wt. soda ash 50.0; alkyl sulfate 15.0; sodium tripolyphosphate 20.0; water glass 5.0; carboxymethyl cellulose 2.0; water up to 100.0 (8%).

 Powder for soaking linen, wt. trisodium phosphate 15.0; soda ash 75.0; sodium sulfate 190.

 Means "Phospor", wt. soda ash 35.0; sodium phosphate 75.0.

 Means "Foscan", wt. soda ash 30.0; sodium tripolyphosphate 70.0.

 Means "Penguin" is intended for soaking clothes, washing work clothes, as well as for cleaning and washing household items. The composition of the drug is the following, wt. sulfonol DP-1 6.0; sodium tripolyphosphate 30.0; sodium sulfate 8.0; soda ash 50.0; carboxymethyl cellulose 1.0; sodium silicate 5.0.

 The listed funds contain phosphoric salts, which, getting into water bodies, lead to environmental complications: they reduce the oxygen content in water, cause illness of water bodies and the death of flora and fauna in them, and make it difficult to supply drinking water.

 Known powderless phosphate-free agent "Siberian" [1] of the following composition, wt. soda ash 97.2, sodium sulfate 2.8.

 This composition has a low effect of dirt removal from tissues, the lack of fluidity in the composition makes it impossible to pack the finished product on machines.

 The closest in technical essence to the claimed invention is selected as a prototype composition of the means for soaking laundry before washing "Tetra" [2] which contains, by weight. trisodium phosphate or sodium tripolyphosphate 15.0; soda ash 72.0; sodium sulfate 10.0; nonionic surfactant syntanol ALM-10 3.0.

The prototype and the claimed invention have the following similar essential features: the main component is soda ash (sodium carbonate); as a surfactant, the nonionic surfactant syntanol ALM-10 is used, which is a mixture of polyoxyethylene glycol esters of synthetic primary higher fatty alcohols of the C ₁₂ -C ₁₄ fraction.

 The disadvantages of the prototype are: the presence of sodium tripolyphosphate, which leads to environmental complications; low dirt-removing effect 140% The dirt-removing effect is considered sufficient when reaching a value of 150% (percentage of washing the pollutant mixture of the test composition in relation to soda ash). Insufficient fluidity (3.5 g / s), which complicates the packaging of the finished product.

 Packing can be carried out on standard equipment upon receipt of a product belonging to the class "satisfactory" or "good", while the fluidity should be at least 6 g / s (see table 4).

 The purpose of the invention is the creation of an environmentally friendly product with increased dirt removal effect and fluidity of the finished product.

This goal is achieved in that the nonionic surfactant is taken in the form of an aqueous solution in the following ratio of components, wt. a mixture of polyoxyethylene glycol esters of synthetic primary higher fatty alcohols fraction C ₁₂ -C ₁₄ 5-9; sodium carbonate 64-85; water up to 100.0.

Polyethylene glycol monoalkyl ether based on primary fatty alcohols of fraction C ₁₀ -C ₁₈ (syntanol DS-10) or a mixture of polyoxyethylene glycol ethers of primary alcohols of fraction C ₁₆ -C ₂₀ (syntanol ACSE-12), or ethoxylated monoalkyl phenols can also be taken as nonionic surfactants. based on propylene trimers (neonol AFB-12, neonol AF 9-12). The elimination of phosphates ensures environmental safety.

 One of the main indicators that determine the ability of a product to be packaged on machines is fluidity. The fluidity is characterized by the time for which a given mass of the product completely "flows out" through the opening of the funnel with a diameter of 10 mm The determination of fluidity was carried out after mixing the components and at certain intervals to obtain stable values.

Evaluation of consumer properties was carried out on the basis of the dirt-removing effect from cotton fabrics according to OST 6-15-1574-87 (Synthetic detergents. Method for determining washing ability). The essence of the method consists in a comparative determination of the percentage of washing off the pigment-oil contaminating mixture with the test composition in relation to the standard composition of soda ash. Tests were conducted under the same conditions: the concentration of the solution was 5 g / l solution temperature ⁴⁰ ° C, holding 30 min.

 In the table. 1 shows the dependence of the dirt-removing effect and the fluidity of the proposed composition from incoming raw materials.

The data in the table indicate that satisfactory indicators of fluidity and dirt-removing effect have compositions 4,5,6,7,9,10,11. To prepare the product, 25 33% aqueous solutions of syntanol DS-10 and neonol AFB-12 were used. The decrease in the content of nonionic surfactants below the lower limit of 5% and water 10% leads to a decrease in the gravity-removing effect and to obtain a product with insufficient fluidity (compositions 3, 12). Exceeding the content of syntanol DS-10 or neonol AFB-12 and water more than 9 and 27%, respectively (composition 8.13) leads to waterlogging of the product. A decrease in soda content below the lower limit of 64% (compositions 8, 13) leads to a decrease in the dirt-removing effect. The use of nonionic surfactants in the form of aqueous solutions in an amount of 15-36% (nonionic surfactants 5.0-9.0% H ₂ O 10-27%) allows water to freely contact sodium carbonate with the formation of solid-phase hydrate bridges between particles and contributes to the production of fluid product with a high content of nonionic surfactant in the composition (5-9% versus 3% in the prototype). Anhydrous compositions containing neonol AFB-12-5-10% do not have fluidity (compositions 1,2). Table 1 shows the composition only using monoalkyl ether of polyethylene glycol based on primary fatty alcohols of fraction C ₁₀ -C ₁₈ (syntanol DS-10) and ethoxylated monoalkyl phenol based on propylene trimers (technical mixture of polyglycol ethers of monoalkyl phenols-neonol AFB-12).

A mixture of polyoxyethylene glycol ethers of synthetic primary fatty alcohols of fraction C ₁₂ -C ₁₄ (syntanol ALM-10) or a mixture of polyoxyethylene glycol ethers of primary alcohols of fraction C ₁₆ -C ₂₀ (syntanol ACSE-12), or ethoxylated monoalkylphenol based on propylene trimers 9-12 neonol ) provide the proposed composition with similar fluidity and dirt-removing effect. In appearance, syntanol DS-10, syntanol ALM-10, syntanol ACSE-12 are pastes from white to slightly yellow in color (4-6), neonols AFB-12 and AF9-12 are transparent oily liquids from colorless to light yellow colors (7-8). Mass fraction of water in neonol AFB-12 and neonol AF9-12 not more than 0.5% Nonionic surfactants are used in the composition to wet contaminated materials and remove soot and grease contaminants. As a component that softens water in the preparation of solutions, according to the method of application, and to provide a dirt-removing effect, sodium carbonate (sodium carbonate soda ash) was used (9). Soda ash white crystalline powder.

 The invention is illustrated by the following examples (see table 2).

The manufacturing process consists of the following stages:
dissolution of nonionic surfactants in water;
mixing (agglomeration);
cooling (ripening) of the finished product;
packaging and packaging of the finished product.

An example of the preparation of a composition in an amount of 1000 kg: dissolution of syntanol DS-10 in water is carried out in an apparatus with a mixing device and a jacket. Through the counter or dispenser, 216.3 kg of water is poured into the apparatus and heated to 55 ° C. Is then fed through the weigher synthanol melt at a temperature not lower than ⁵⁰ ° C (72.1 kg) and stirred for 5 minutes to obtain a homogeneous solution. After cooling, a solution of syntanol DS-10 (288.4 kg / h) is fed by a metering pump through a nozzle to a mixer-agglomerator and at the same time 741.6 kg / h is supplied to soda. Under the influence of the air flow created by the blades, the powder is mixed with a solution of syntanol DS-10 and agglomerated. An agglomerated or powdery product, heated to a temperature of 30-32 ^о С due to hydration of soda, freely falls into the apparatus of the vibro-boiling layer (VKS), where it is translationally moved and cooled by cold air supplied by the fan under the dryer grate. The finished product acquires stable fluidity 10-15 minutes after exiting the granulator. The finished product goes to the packaging. It is packaged on machines designed for powdered products. When using syntanols ALM-10, ACSE-12, neonols AFB-12, AF9-12, the preparation scheme of the product remains unchanged.

 Table 3 shows the data on the comparative assessment of the proposed composition with the prototype. An assessment of the manufacturability of the proposed composition and prototype is given in points according to the methodology developed in the UralVNIIKHIMProekt, published in the research report "Research and the choice of manufacturability criterion for powdered products of household chemistry of the branch profile". (Register. N 01825022115, inv, N 02840079879, Perm, 1984) The evaluation system is shown in Table 4.

 From table 3 it can be seen that the proposed composition exceeds by 50% the prototype in terms of dirt-removing effect, the fluidity is increased 2.6 times. Due to the proposed composition, it is possible to improve the technological properties of the composition from the "poor" class to the "satisfactory" class. The packaging is straightforward and can be carried out on standard equipment. The composition of the prototype is included in the group of materials with poor performance and requires special measures (installation of breakers in bunkers, incomplete loading of containers), the use of more advanced and non-standard equipment.

 Unlike the prototype, the proposed composition has a wider scope: it is recommended for the care of household items (cleaning baths, sinks, tiles, washing dishes). According to the indicators, the cleaning and washing ability meets the requirements.

 The method of application of the proposed composition.

Before washing at 30 minute soak in a warm 40-45 ^{° C} cleaning solution containing 5 g in 1 liter of water. Heavily soiled laundry can be left in solution for 2-3 hours.

 To wash dishes, dissolve 3.5 g of the product in 1 liter of warm water. Clean and rinse hard surfaces with water.

 Toxicological tests of the proposed composition were carried out, the formulation was agreed with the Perm Regional Center for Sanitary Inspection.

Claims (1)

Composition for soaking laundry before washing, containing a nonionic surfactant and sodium carbonate, characterized in that it further comprises water and, as a nonionic surfactant, the composition contains a mixture of polyoxyethylene synthetic primary fatty alcohols of fraction C _{1 2} - C _{1 4} or C _{1 6} - C _{2 0} , or polyoxyethylated primary fatty alcohols of the fraction C _{1 0} - C _{1 8} , or polyoxyethylated monoalkylphenols based on propylene trimers in the following ratio, wt.%:
Specified nonionic surfactant - 5 - 9
Sodium carbonate - 64 - 85
Water - Up to 100

Images