SU1689477A1 - Composition for low temperature bleaching clothes - Google Patents

Description

The invention relates to a technology for the chemical treatment of textile materials, and in particular to compositions for peroxane bleaching of cotton fabrics.

The purpose of the invention is to increase the whitening ability.

Example 1. (comparative). The composition contains an inorganic peroxide compound sodium perborate and an activator, a Ν-acetyl derivative of the triazole series; 1,4-diacetyl-1,2,4-triazolone-5 in a 1: 1 ratio.

Example 2-29. The composition contains an inorganic peroxide compound sodium perborate and an activator - an acetyl derivative of the triazole series in a ratio of 15:85.

The activator is prepared as follows.

A mixture of 5 g of 3-carboxy-1,2,4-triazolone-5 • and 8 g of acetic anhydride is boiled for 1 h, evaporated in vacuo, the precipitate is washed with ethyl acetate and dried. 5.5 g of compound I are obtained, ¹ mp. 100-101 ° C. The bleaching ability is characterized by the whiteness of tissue samples treated with bleaching agents (without SMS components) after contamination with artificial pollutants. As pollutants for oxidative preparations, for example, tea infusion prepared in a standard way is used. Determination of the whiteness of the tissue is carried out on a leukometer by measuring the reflection coefficient of the surface of the bleached sample after removing the contamination.

The bleaching of the samples is carried out under the following conditions: bleaching temperature of 20 ° C; bath module 1:25; pollutant - tea infusion; whitening time 30 min; the concentration of peroxide compounds 3 g / l; Cotton fabric calico.

The results obtained when using the composition of examples 1-19 are shown in table. 1.

The composition can be used as part of SMS (synthetic detergents

1689477A1 funds). In the table. 2 shows examples of the use of the composition in SMS.

Sulfur green dye is used as a pollutant. The processing of 5 samples is carried out in a Linitest apparatus with a 1:60 module, processing time of 20 minutes, SMS concentration of 10 g / l. The bleaching effect is determined by the percentage of dye removed. Properties are presented in table. 2.

Similar results are achieved using other peroxides with similar activity (table, 15 3).

Claims (1)

SUMMARY OF THE INVENTION Composition for low-temperature bleaching of cotton fabrics containing perborate, sodium perphosphate or sodium percarbonate and an activator based on a Ν-acetyl derivative of triazole as an inorganic peroxide compound, characterized in that it contains 10 as an activator in order to increase the bleaching ability 1-acetyl-3-carboxy-1,2,4-triazolone-5 or 1-acetyl-3,5-dibromo-1,2,4-triazole or 1-acetyl-3-nitro-1.2.4-triazole the following ratio of components, (wt.%): inorganic peroxide compound 15-85: activator 15-85. Table 1 Example Inorganic peroxide compound Activator The composition of the whitening composition (persol: activator) I input whiteness of malignant samples,% White after whitening,% 2________ 2 ....-.:..1 3 4 . 5 0 1 (compare Perborate 1,4-diacetyl- 50:50 57 74 solid) sodium 1,2,4-triazo bosom 5 2 (n.on- Perborate sodium 1-Acetyl-Z- 10:90 57 84.3 role) narbox 1,2,4-triazo bosom 5 3 15:35 84.5 4 50:80 84.0 5 57:43 33.9 6 85:15 79.1 / (control) 90:10 63.0 B (non- Perborate sodium 1-acetyl- 10:90 57 82.0 role) 3,5-dibromo 9 1,2,4-triazole 15:85 32.0 10 50:50 81.7 eleven 57:43 81.1 12 85:15 77,2 13 (control) 90:10 64.3 14 (non- Perborate sodium 1-acetyl- 10:90 57 82.5 role) 3-nitro fifteen 1,2,4-triat angry 15:65 82.6 16 50:50 32,4 17 57:43 82.0 ' 18 85:15 78.3 ^ (cont role) 90:10 66,2 T d b-th M'c a__2 Medalist Activator The composition of the bleaching nompoeits, wt.% SMS composition, wt.% Temperature, C Whitening ability,% removed dye from cotton fabric Whitening nomination Rest component you Sodium hydrate, Activator Peobooat Amtchel- the torus 20 1-Acetyl-3-marbonsi-1,2,4triaeolone-5 (1) fifty fifty fifteen fifteen 70 ' 20 20,2 21 That me fifty fifty fifteen fifteen 70 thirty 28.3 22 - · - 57 43 10 7.5 E2.5 thirty 17.4 23 (cf-1, 4-diacetylnitl-1,2,4-triazo NEW) bosom 5 fifty fifty fifteen fifteen 70 20 1.1.3 24 .. (comparative) Also fifty fifty fifteen fifteen 70 thirty 16.8 25 57 43 10 7 ^ 5 82.5 thirty 12.1 (comparative) 1-Atsvtil-Z, 5. dibromo-1,2,4triaeol (II) 1-Acetyl-Znitro-1,2,4triazole (III) 15, '15 15 15 15 15 17,2 21.8 18,4 23.7  < -3 ------ T a blitz 3 Example Activator. Perisno The composition of the depart Tempirlto- Nreml Percent compound lively com ra "° C selection activated-: position (re- samples ngo nonorg- sour mime nothing and noni8: activ1- peroxide torus, pass) connections 1 2 3 4 5 0 7 ‘ι 2 1-Acetyl-3-. Perborate 10 (90 20 1 92 carboxy-1,2,4- sodium 5 96 triaeolon-5 10 100 * fifteen 100 thirty 100 3 Also Also 15:85 20 1 88 5 33 10 99 fifteen 100 4 1-Atsvtil-Z- Perborate 50:50 20 1 62 narboncy-1,2,4- sodium ' 2 wa triaeolon-5 10 93 fifteen 98 thirty ABOUT 5 Famous Also 50:50 20 1 28 activator 5 46 10 54 fifteen 52 thirty 44 B Also - * · 50 (50 thirty 1 64 5 66 10 90 fifteen 90 thirty 90 7 1-Atsvtil-Z- Perborate 57:43 20 1 78 carbon-1,2,4- sodium 5 66 triaeolon-5 10 32 fifteen 95 thirty 36 8 Famous Thats not 57:43 20 1 · 16 activator 5 29th 10 : 39 fifteen 44 thirty fifty 9 Also 57:43 thirty 1 68 • 5 61 10 88 fifteen 90 thirty 94 a