SU804678A1 - Liquid preparate for optical bleaching - Google Patents

Description

. (54) LIQUID PREPARATION OF OPTICAL BLEACH

The invention relates to the production of organic dyes, in particular, to the outlet forms of optical brighteners of the bistriaentilstilbene series, which can be used, for example, for bleaching textile materials from cellulose and polyamide fibers. A liquid optical bleach preparation is known, containing 4,46-C (2-methoxy-4-phenylamino-l, 3, triazine-b-ylamino) -stilben-2,2-disulphide as the optical bleach of triethanolamine salt. phytoacids t reethanolamine and water. The drug is known in the industry under the code name belfour KCP zhid cue. It is used to optically correct bleaching of cellulose and polygilide fibers 1. A disadvantage of the release form of this preparation is instability to exfoliation during storage: after 14 days of storage, swelling of the main substance is observed. In addition, the frost resistance of the drug is relatively low: freezing is 25 ° C. The purpose of the invention is to increase the resistance of the drug to delamination during storage and frost resistance. The goal is achieved by the fact that, in contrast to the known preparation containing an optical bleach — a triethanolamine salt — a derivative of 4,4 -bis- (4 -amino-1, 3, -triazin-b-alamino) -stilben-2,2-disulfonic acid , triethanolamine and water, the proposed preparation contains the triethanolamine salt of 4,4-bis- (2-methoxy-4-phenylamino-1, 3,5-triazin-6-alamino) -stilben-2,2-disulfonic acid or 4,4 - Bis- Engleycol, with the following ratio of components, wt.%: Optical bleach24, 6-5,8,2 Ethylene glycol 6.52-25.2 Aerosil, modified with diethylene glycol 0.12-0.36 Water 0.88-1.75, Triethanolamine The proposed drug is optical, -0 bleach is obtained by mixing

its components when heated to 75-80 ° C in the process of converting disulfonic acid to triethanalamine salt upon receipt of an optical bleach.

The active ingredient of the preparation is an optical bleach of the formula

SOjUNCCHjCHjOH), SO HN H-iCMjOHV

yVcH.CHjJjM N (CM2CH2P «) 2

Example 1. A glass flask equipped with a stirrer, a thermometer and a direct cooler is charged with the first portion of triethanolamine (13, 6 g and 12.9 g of 4,4-bis- (2-methoxy-4-phenylamino-1, 3, 5 -triazine-b-lamino) -stilbene-2,2-disulfonic acids in species with a moisture content of 80%

The mixture is stirred for 20 minutes, subjected to 75-80 ° C and the moisture is distilled off under vacuum (15 mm Hg) to a content of not more than 1.3%. After distillation, the vacuum is switched off, to the resulting triethanolamine salt 4,4-bis- (2-methoxy-4-phenylamino-1, 3, 5 -triazine-b-methylnamino) -stilbene-2,2-disulfonic acid, add a second portion of triethanal- g mine. (10.9 g) and stirred until complete dissolution at 75-80 seconds. At the same temperature in solution, mix a mixture of 3.81 g of ethylene glycol and 0.05 g of aerosil modified with diethylene glycol, such as ADEG (GOST 14922-69) and stir for 10-15 minutes. Get 41,95 g (yield 99%) liquid preparation of the following composition, wt.%:

Optical bleach49

Ae grew, modi

Cyrovain di - 0.12

ethylene glycol

0.88 41

The preparation is a viscous transparent light-brown color solution with frost resistance, resistance to exfoliation for at least one year. According to the selected effect, the liquid preparation corresponds to

r

4HN (cap

It is known for bleaching fabrics from cotton and nylon.

Example 2. The preparation of the preparation is carried out under the conditions described in example 1, but the components are loaded in the following amounts, g: First portion.

6.85 triethanolamine 4,4-bis- (2 -Methoct si-4-phenylamino-1, 3, 5 -triazin-b -ylsh-daio) -stilben-2, 2 / -disulfo6, 45 acid

second 11or1ci three18, 12 ethanol glycol ethylene glycol 10.67 Aerosil, mopified distileng

0.1 glycol

receive 42.1 (yield 99.5%) of the preparation of the following composition, wt.%: Optical bleaching -. . vatel

24.6

Ethylene ikol 25,2 LaRsilo, modified1 & 1st sty1 and glycol

0.24 Water

0.96

Trietaio Gmin

49

Prepragfat is a viscous straw-colored transparent solution with good stability and sustainability. Tochiaosofyv to delamination of not less than a year. But by bleaching the chemical effect, the zhdhny preparation corresponds to the one known for bleaching fabrics from cotton and Capron.

PRI me R. 3. The preparation is obtained in the CONDITIONS described in example 1, but the components are loaded into the following & quantities, g:

The first portion of triethanolamine 16, 31 4,4-bis- (2 -me5 tox-4-phenyls

Claims (5)

The claims of the year. According to the whitening effect, the liquid preparation corresponds to that known for kapron bleaching. An example of a parat is carried out in Example 1, paste 4,4 ¹ -bis- ( 2-methoxy-4-I * -phenylamino ^minutes, 3,5-triazin-b-ylamino) -stilbene-2,2 -disul> okisloty charged aqueous paste 4,4 -bis- [2 - (3 '-sulfofenilamino) ^{-4-dioksietilamino-1,} 3, 5 '' -triazin-o '-ylamino] -stilbene-2,2 * -disulfonic acid, and the components in the following compounds, g:' _ „ 4. Preparation under the conditions described instead of water 4,4 * -bis- [2 - (3 * '-sulfophenylamino) -4 ”-dioethyl ethyl fabric from cotton and 5-triazin-b-ylamino) quantitatively 25 The liquid preparation of optical brightener containing optical brightener is a triethanolamine salt _{| (} derivative of 4,4'-bis- (4'-amino-1, 3 ¹¹ , 5-triazin-6 ¹¹ -ilamino) -stilbene-2,2-disulfonic acid, triethanolamine and water, characterized in that, in order to increase the resistance to delamination during storage and frost resistance, the preparation contains a triethanolamine salt of 4.4 ^G- bis- (2-methoxy-4-phenylamino-1 ' ¹ , Z' ¹ .5 β-triazine-β-ylamino) -stilbene-2,2-disulfonic acid or 4,4'-bis- [2 (З ¹ -sulfophenylamino) -4-dioxethylamino-1, 3 ^I , 5-triazin-6 '-amino ] -stilbene-2.2 * -dis ulphonic acids and, in addition, ethylene glycol and aerosil modified with diethylene glycol, in the following ratio of components, weight \%: but-1,3, 5-tri- Optical Bleach - azin-6 -amino] - vatel 24.6-58.2 -stilbene-2.2 -di- Ethylene glycol 6.52-25.2 sulfonic acid 24.8 45 Aerosil, modifi- The first serving is three cited diethylene ethanolamine 23.6 glycol 0.12-0.36 The second serving is three Water : 0., 88-1.75 ethanol amine 7.25 Triethanolamine rest Ethylene n glycol 3.96 fifty Sources of information, Aerosil, modifi- taken into account when expertise cited diet 1. Obtaining a liquid outlet form langlycol 0.015 we are bleach 18-64. Report. Rube- Obtain 59.87 (yield 99%) of liquid jean production Union th preparation of the following composition, wt.% g Dye, 1974 (prototype).