SU1696469A1 - Detergent for washing of cotton and linen fabrics - Google Patents

Abstract

The invention relates to detergent compositions, in particular to detergents for washing cotton and linen fabrics. The goal - increasing detergency. For this, the agent contains the components in the following ratio, wt%: sodium salt of chlorohydrinated tall oil 18-20; sodium tripolyphosphate 19-20; sodium metasilicate 1.75-2.00; carboxymethylcellulose 0.75-1.00; polyacrylamide gel 1.75-2.00; sodium carbonate 10-15; hydroxyethylidene diphosphonic acid 1.75-2.00; optical bleach 0.10-0.20; perfume 0,15-0,20; water - dB 100. The washing ability is increased by 36.5%. 2 tab.

Description

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This invention relates to the production of household chemical goods, namely, synthetic detergent pastes.

The aim of the invention is to increase the detergency of the agent.

PRI me R. A calculated amount of water is loaded into a stirred reactor, heated to 60 ° C, then a calculated amount of sodium tripolyphosphate and carboxymethylcellulose are introduced. The mass is mixed until homogeneous, after which sodium metasilicate, polyacrylamide gel, hydroxyethylidene-phosphonic acid, optical brightener, surfactant and perfume are sequentially loaded. The loading was carried out with constant stirring of the reaction mass. After loading is complete, the mass is cooled and stirred for an additional 30 minutes for finer homogenization.

The finished product in all cases is a non-layering, light-colored paste with a pH of 1% aqueous solution of 10 ± 0.5 and does not have a dye effect. The washing ability of all samples is tested in a laboratory setup, which is a 2 L glass beaker, in which a rotating metal frame is placed.

To determine the detergency of samples, tissue preparation is carried out as follows.

Stripes of cotton or linen fabric of 35x80 mm in size are dipped into the contaminating composition of the composition, g: lamp soot 0.3; sunflower oil 0.75; perfumery vaseline oil 1,5; carbon tetrachloride 100. The carbon black is ground in a porcelain mortar with well-mixed and fused fatty components, then added in portions

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carbon tetrachloride and mix well. The fabric is immersed in a polluted solution, dried in air, again immersed in a polluted solution, then heat treated in a drying oven for 1 hour at 100 ° C and ironed with hot iron between sheets of filter paper.

Samples of contaminated tissue measuring 35x80 mm are fixed in a metal frame, placed in a 10% detergent solution and turned at 50 ° C for 20 minutes at a speed of 100 rpm. Then the samples are rinsed in distilled water at 20 ° C and dried at room temperature, not removed from the frame. After drying, iron it with a hot iron.

The tissue reflectance is determined on a Spectron calorimeter through a green filter at 510 nm for two sections on each side of the sample. For calculation, take the average value of four measurements. The calculation of detergency is carried out according to the formula

v Ki - K2 Y Kz-K2

100,

where Y is the washing ability of the test solution,%;

Ki is the reflection coefficient of the sample washed in the test solution;

Ka and Kz are the reflection coefficients of the contaminated sample before washing and the original fabric (non-contaminated).

The test results of the washing ability of paste samples prepared using the proposed and known compositions are given in table. one.

In the proposed composition, the sodium salt of chlorohydrinated tall oil is used as a surfactant - a substance of the general formula

R CH (CI) -CH (OH) COONa + RCOONa where R Cg-Ci9.

It is a light or dark brown liquid with a density of 1055-1058 kg / m3, soluble in water, alcohols, acetone. The method of its preparation consists in treating tall oil with an aqueous solution of sodium hypochlorite, followed by washing the saturated fatty acids with sodium hydroxide when heated.

These definitions of the detergency of pastes are presented in Table. 2

Claims (1)

Replacing the scarce surfactant components in the DAS paste with the sodium salt of chlorohydrinated tall oil makes it possible to increase the washing capacity of the paste by 36.5%. Claims of the Detergent for washing cotton and linen fabrics containing anionic surfactant, sodium carbonate and metasilicate, sodium tripolyphosphate, carboxymethyl cellulose, hydroxyethylidene diphosphonic acid, polyacrylamide gel, an optical bleach agent, and a yarn. In order to increase its detergency, as an anionic surfactant, the agent contains the sodium salt of chlorohydrinated tall oil in the following ratio of ingredients, .% Al: Sodium salt of chlorhydrinated tall oil18-20 Sodium tripolyphosphate 19-20 sodium metasilicate 1.75-2.00 Carboxymethylcellulose 0.75-1.00 Polyacrylamide gel 1.75-2.00 Sodium carbonate 10-15 Hydroxyethylidene diphosphonic acid 1.75-2.00 Optical bleach 0.10-0.20 Fragment0.15-0.20 WaterUnder 100 Component The content of components, wt. $, In the composition Pasta DAS (known1 e 18 20 2 1 2 12 15 17 1 ABOUT, one eight one Optical Bleach 2 0.1 0.20,090,10,10,10,20,2 Odorant0,20,150,150,180,20,20,2 Water ", 656.3650.75", 7242.732, 39.6 Reflection client  ability s 1 M9 M9 me  . "..---" ------ - - ---- --- Note. The reflection coefficient of the uncontaminated tissue is K4 0, i7 nm, and the soiled fabric before washing Kj 0.773 nm for all examples Table 2 Sample Reflection Coefficient .---. way to K2K3 I (Y), Original fabric (uncontracted) -0, Contaminated fabric (before washing) - 0.773 Fabric after washing in the proposed tool0.092 --6.19 in pasta, 080 - 5, 5 Table 1 20 20 2 12 ten 2 0.1 22 21 2.5 1.5 2.5 15 2.5 18 20 2 1 2 15 0,10,20,2