Fluorescent whitening agents

 

(57) Abstract:

The invention relates to new compounds of the number of 4,4'-diaminostilbene-2,2'-disulfonic acid, which can be used as fluorescent whitening tools. Describes compounds of formula (1), the structure and values of the radicals which provided exceptions to it are known compounds specified in paragraph 1 of the formula. Also describes the way the fluorescent whitening of the substrate, a method of increasing the value of sunscreen material properties of textile fibres, the composition of detergent for the fluorescent whitening of fabrics and detergent to save dyeing. The proposed compounds have improved fluorescent properties and can be used to inhibit the action of anionic fluorescent whitening tools on the substrates. 7 C. and 8 C.p. f-crystals, 2 tab.

The invention relates to new compounds, in particular new compounds 4,4'-diaminostilbene-2,2'-di-sulfonic acids that can be used as fluorescent whitening tools or for inhibition (clearing) the action of anionic fluorescent whitening tools on the substrates.


< / BR>
where Raand Rbare the same or different, and each of them has the formula-NRcRdwhere Rcrepresents hydrogen, C1-C6-alkyl, which is optionally substituted by at least one mercapto, C1-C6-thioalkyl, HE, and SO3M', where M' represents hydrogen, a colorless cation, or derived from an amine cation; or Re(CO2M')xwhere Rerepresents the aliphatic portion has 1-6 carbon atoms; moreover, these valence, not associated with groups of CO2M', are connected, at least one of hydrogen, mercapto, C1-C6-thioalkyl, HE, and SO3M', where M' has the meanings given above and x is an integer from 1 to 4, provided that when Rcis1-C6-alkyl, which is optionally substituted by at least one mercapto, C1-C6-thioalkyl, HE, and SO3M', Rcsubstituted at least both HE and SOCM'; Rdis Rchydrogen or C3-C6-alkyl, provided that both Rcand Rdcannot be hydrogen, and when one of Rcand Rdrepresent hydrogen, then the other can not be -(NHCH2CO2H); or Rcis heterocyclics; moreover, this ring is only substituted by a group-SOOMA' or-SO3M'; and each Rfindependently represents hydrogen, methyl, C1-C6-alkoxy or halogen.

In connection with this invention was discovered a new class of compounds, 4,4'-diaminostilbene-2,2'-disulfonic acid; most of these compounds can be used as fluorescent whitening tools, and have significantly better properties compared with the compounds described in WO 96/00221, while others of these compounds can be used to inhibit (clearing) the action of anionic fluorescent whitening tools on the substrates.

Accordingly, the present invention relates to new compounds having the formula:

< / BR>
where X represents-NH; M represents hydrogen, alkali metal atom, ammonium or a cation formed from an amine; each R1independently represents a non-aromatic amino acid residue, from which is removed a hydrogen atom on the amino group; n is 1 or 2; each R2independently represents hydrogen, C1-C3alkyl, halogen, cyano, COOR, where R represents hydrogen or C1-C3M, where M has the above meaning, or, if n = 1, R2can also be CO-R3where R3- C1-C3alkyl or phenyl; provided that excluded such compounds, in which:

a) X represents NH; n = 1; and R2is SO3M, where M has the meaning indicated above; or

b) X is NH; n = 2; and one of R2is SO3M, where M has the meaning indicated above; and the other R2represents hydrogen, methyl or halogen; or

c) X is NH; n = 1; R1is glycine; R2represents H or CO2H; or

d) X is NH; n = 2; each of R2is SO3M, where M has the meaning indicated above, and groups SO3M are in the 2,5-positions of the phenyl ring; and R1is D,L-alanine, L-valine, L-leucine, L-isoleucine, L-threonine, L-aspartic acid, L-glutamic acid, L-phenylalanine, L-Proline, D,L-methionine or glycine.

Preferably, M is hydrogen, Na, K, CA, Mg, ammonium, mono-, di-, tri - or Tetra-C1-C4-alkylammonium, mono-, di - or tri-C1-C4-hydroxyethylammonium, or ammonium that is di - or tri-substituted with a mixture WITH1-C4-alkyl and the substituent R2may be fluorine, bromine or iodine, and preferably chlorine.

In the compounds of formula (1), n is preferably 1, and R2preferably represents hydrogen, methyl, chlorine, cyano, COOH, COO-methyl, CONH2, CONH-methyl, SO2NH2, SO2NH-methyl, or NH-CO-methyl.

Preferably all amino acid residues R1are the same. Examples of preferred amino acid residues R1are residues having the formula-NH-CH-(CO2H)-R3where R3represents hydrogen or a group having the formula-CHR4R5in which R4and R5independently represent hydrogen or C1-C4alkyl, optionally substituted by one or two substituents selected from hydroxy, thio, methylthio, amino, carboxy, sulfo, phenyl, 4-hydroxyphenyl, 3,5-diid-4-hydroxyphenyl, indolyl, imidazolyl and NH= C(NH2)NH-.

Typical examples of amino acids, which occur these preferred amino acid residues R1are glycine, alanine, sarcosine, serine, cysteine, phenylalanine, tyrosine (4-hydroxyphenylethyl), diiodotyrosine, tryptophan (-indolylmethane), histidine (-imidazolylalkyl), -aminobutyric acid, met the--methylvaleramide acid), norleucine (-amino-n-hexanoic acid), arginine, ornithine (, -diaminopurine acid), lysine (, -diaminopropane acid), aspartic acid (amino amber acid), glutamic acid (-aminoglutaric acid), threonine, gidroksilaminov acid, and taurine, as well as their mixtures and optical isomers. Of these amino acids, which occur these preferred amino acid residues R1especially preferred are sarcosine, taurine, glutamic acid and aspartic acid.

Another preferred example of the amino acids, which can occur amino acid residue R1is iminodiacetate acid.

Other, less preferred examples of the amino acids, which can occur amino acid residue R1are cystine, lanthionine, Proline and hydroxyproline.

In addition to the aforementioned preferable amino acids, R1can also be the residue of an aromatic amino acid, such as para-aminobenzoic acid or orthoaminophenol acid.

If in the compounds of formula (1), n = 1, and each R2is-R3where R3is

The compounds of formula (1) can be produced in a known reaction conditions through a reaction of chloride cyanuric acid, carried out in any desired sequence, with each connection 4,4'-diamino-2,2'-silberdistel acid, aminoguanidinium able to enter the group: (R2)n, NH, where R2and n have the meanings stated above; and the compound is able to introduce the group R1where R1has the meaning specified above.

The starting compounds are known compounds which are readily available.

Most of the compounds of formula (1) are excellent fluorescent whitening agents for substrates, such as textile fabrics, and in particular, paper.

Accordingly, the present invention relates to a method of fluorescent whitening substrate, involving the contacting of the substrate with the compound of the formula (1A):

< / BR>
where X is O or NH; M is hydrogen, alkali metal atom, ammonium or a cation of images is odorata on the amino group; n = 1 or 2; and each R2' independently represents hydrogen, C1-C3alkyl, halogen, cyano, COOR, where R represents hydrogen or1-C2alkyl, CONH-R, where R has the meaning indicated above, SO2NH-R, where R has the meaning indicated above, NH-COR, where R has the meaning indicated above, or SO3M, where M has the meaning indicated above;

provided that these compounds are excluded the compounds in which X represents NH, n = 2, and one of R2is SO3M, where M has the meaning indicated above, and the other R2represents hydrogen, methyl or halogen.

When used for the fluorescent whitening of paper, the compound of formula (1A) of the present invention can be applied to the paper substrate in the form of a composition for coating paper, or it can be entered directly into the size press.

In one of its preferred aspects, the present invention relates to a method of the fluorescent whitening of a paper surface, involving contacting the paper surface with a composition for coating comprising a white pigment; a binder dispersion agent; optionally, a water-soluble co-binder; and a sufficient number fluorescamine from 0.01 to 1 wt.% (based on the weight of white pigment) fluorescent whitening means, having the formula (1A).

As a component of the white pigment composition for coating paper used in the method of the present invention, preferred are inorganic pigments, such as aluminum silicate or magnesium, such as China clay and kaolin, and in addition, barium sulfate, setinit (white pigment), titanium dioxide, calcium carbonate (chalk), or talc; and white organic pigments.

Compositions for coating paper used in the method of the present invention may contain a binder, among others, the plastics dispersion based on a copolymer of butadiene/styrene, Acrylonitrile/butadiene/styrene, esters of acrylic acid, esters of acrylic acid/styrene/Acrylonitrile, ethylene/vinyl chloride and ethylene/vinyl acetate; or homopolymers, such as polyvinyl chloride, grades, polyethylene and polyvinyl acetate or polyurethane. The preferred binder is composed of copolymers of styrene/butyl acrylate or styrene/butadiene/acrylic acid or styrene/butadiene rubbers. Other polymer latexes are described, for example, in the descriptions of U.S. patents 3265654, 3657174, 3547899, and 3240740.

Optional vodorastvorimym the new starch, chitosan or its derivative, or, in particular, polyvinyl alcohol. The preferred polyvinyl alcohol protective colloid component can have a wide range of degrees of saponification and molecular mass, for example, the degree of saponification, comprising from 40 to 100; and the average molecular weight component from 10000 to 100000.

Formulations of the compositions for application to the paper described, for example, in J. P. Casey "Pulp and Paper"; Chemistry and Chemical Technology, 2nd edition, Volume III, pages 1684-1649 and "Pulp and Paper Manufacture", 2-nd and 5-nd edition, Volume III, page 497 (McGraw-Hill).

Compositions for coating paper used in the method of the present invention, preferably contain from 10 to 70 wt.% white pigment. A binder is preferably used in a quantity sufficient to ensure that the content of dry polymer compound constituted up to 1-30%, preferably 5-25 wt.% by weight of white pigment. The amount of the fluorescent brightening of the drug used in the present invention, are calculated so that the fluorescent brightening agent is preferably present in amounts of from 0.01 to 1%, more preferably from 0.05 to 1%, and especially preferably from 0.05 to 0.6 wt.%, based on the weight of the white pigment.

Composition for coating sumaguing sequence at a temperature of from 10 to 100oWith, and preferably from 20 to 80oC. These components are also standard auxiliary agents which may be added in the composition for a coating for the regulation of their rheological properties, such as viscosity or ability to hold water. These auxiliary agents are, for example, natural binders, such as starch, casein, albumin or gelatin, ethers of cellulose, such as, karboksimetilcelljuloza or hydroxyethylcellulose, alginic acid, alginates, polyethylene oxide or alkalemia ethers of polyethylene oxide, copolymers of ethylene oxide and propylene oxide, polyvinyl alcohol, water-soluble condensation products of formaldehyde with urea or melamine polyphosphates or salts of polyacrylic acid.

Composition for coating used in the method of the present invention, preferably used for printing paper or writing paper, or special paper, such as cardboard or photographic paper.

Composition for coating used in the method of the present invention may be applied to the substrate by any standard method, for example, using Pneumatics is a, then, these coatings are dried at temperatures of the paper surface in the range from 70 to 200oWith, and preferably from 90 to 130oWith to get the level of residual moisture content of 3-8%, for example, using a dryer for drying infrared radiation and/or hot air drying. In this case, a relatively high degree of whitening is achieved even at low temperatures drying.

In accordance with the method of the present invention, the obtained coatings differ on the optimal distribution of a dispersion fluorescent Brightener over the entire surface and to increase the attainable thus the degree of bleaching, and high stability to light and elevated temperatures (e.g., stable for 24 hours at 60-100oC), and excellent water resistance.

In the second preferred aspect of the present invention relates to a method of the fluorescent whitening of a paper surface, providing the contact paper in the size press with an aqueous solution containing an adhesive agent, optionally, inorganic or organic pigment, and 0.1-20 g/l of fluorescent whitening means having the formula (1A). Preferably the water-soluble copolymer.

In its third aspect, the present invention relates to a method of improving SES (sun properties) of the material of textile fibers capable of handling this material is 0.05 to 3.0 wt.% (based on the weight of the material of textile fibers) one or more compounds of the formula (1A) as defined above.

Textile fibers treated in accordance with the method of the present invention can be of natural or synthetic fibers or mixtures thereof. Examples of natural fibers are vegetable fibers, such as cotton, viscose, linen, artificial silk or linen cloth, preferably cotton and fiber of animal origin, such as wool, mohair, cashmere, Angora and silk, and preferably wool. Synthetic fibers are fibers on the basis of a complex of the polyester, polyamide and polyacrylonitrile. Preferred textile fibers are cotton, polyamide fiber and wool.

Preferably the textile fibers treated in accordance with the method of the present invention have a density of less than 200 g/m2and are not pre-painted in deep colors.

Some compounds form applied in dispersed form. For this purpose, they can be crushed with an appropriate dispersing agent, usually using quartz spheres and mixer, to obtain a particle size of 1-2 microns.

As dispersing agents for such poorly soluble compounds of the formula (1A) can be used:

acid esters or their salts alkalinising adducts, for example, acid esters or their salts of priduct 4-40 mol of ethylene oxide with 1 mol of phenol, or esters of phosphoric acid and adduct 6-30 mol of ethylene oxide with 1 mol of 4-Nonylphenol, 1 mol of dinonylphenol, or, in particular, with 1 mol of the compounds, which were obtained by attaching 1-3 moles of styrene to 1 pray phenol;

- polystyrene sulfonates;

the Taurids fatty acids;

- alkylated, diphenyloxide - or di-sulfonates;

- sulfonates esters, polycarboxylic acid;

- addition products 1-60, preferably 2 to 30 mol of ethylene oxide and/or propylene oxide to fatty amines, fatty Amida, fatty acids or fatty alcohols, each of which has 8-22 carbon atoms, or three-hexa-valent3-C6the alkanols; addition products, converted into an ester of the acid with an organic dicarboxylic sour the compensation of formaldehyde, for example, condensation products of lignin sulfonates and/or phenol and formaldehyde; condensation products of formaldehyde with aromatic sulfonic acids, for example, condensation products detailversion and formaldehyde; condensation products naphtalenesulfonic acid and/or naphthol - or naphthalenesulfonic acids and formaldehyde; condensation products phenolsulfonic acids and/or sulfonated of dihydroxydiphenylsulfone and phenol or cresol with formaldehyde and/or urea; or condensation products derived diphenyloxide disulfonate acid with formaldehyde.

Depending on the type of the compounds of formula (1A), it may be preferable to conduct the treatment in a neutral, alkaline or acid bath. This method is usually carried out in a water bath at a temperature of about from 20 to 140oWith, for example, at the temperature of boiling or close to boiling point, for example, at approximately 90oC.

In the method of the present invention can also be used solutions of the compounds of formula (1A), or emulsions in organic solvents. So, for example, can be used the so-called methods of dehydration of the solvent (ol the b of the present invention are combined with a method of processing tissue or method of finishing, this combined treatment may be advantageously carried out with the use of appropriate stable preparations which contain the compound of the formula (1A) in such concentration as to achieve the desired improvement in SES.

In some cases, the full effectiveness of the compounds of formula (1A) is achieved by carrying out the subsequent processing. Such processing may involve chemical treatment such as acid treatment, heat treatment or integrated thermal/chemical treatment.

It is often preferable to use the compound of the formula (1A) in a mixture with an auxiliary agent, or filler, such as anhydrous sodium sulfate, decahydrate sodium sulfate, sodium chloride, sodium carbonate, a phosphate of an alkali metal, such as orthophosphate, sodium or potassium pyrophosphate, sodium or potassium, or sodium tripolyphosphate or potassium, or alkali metal silicate such as sodium silicate.

In addition to compounds of the formula (1A) in the method of the present invention can also be used in minor amounts of one or more adjuvants. Examples of adjuvants include emulsifiers, perfumes; dyes; samotny the patients to care for fabrics, in particular, fabric softeners, ingredients that removes color or giving immunity to the color, or agents, giving a resistance; agents that prevent gelatinization, such as nitrites or nitrates of alkali metals, especially sodium nitrate; and corrosion inhibitors such as sodium silicate.

The amount of each of these optional adjuvants should not exceed 1%, and should preferably be from 0.01 to 1% by weight of the treated tissue.

In addition to its use for protecting the skin, the method of the present invention can also increase the wear resistance of textiles treated in this way. In particular, can be improved tensile strength and/or resistance to exposure to light of the treated textile material.

The present invention also relates to a textile material derived from tissue treated by the method of the present invention, as well as garments made from this fabric.

Such textile fibers and garments made from these fabrics usually have the SES within 20 and above, while products made from raw cotton, for example, oby the ene by washing the fabric material of the textile fiber detergent, containing at least one compound of the formula (1A), which gives the washed so fibrous material with excellent shading properties.

Processing detergent conducted in accordance with the present invention, preferably carried out by washing the textile material at least once, the detergent composition at a temperature factor of 10 to 100oWith, and preferably from 15 to 60oC.

Used the detergent composition preferably contains:

i) 5-90%, preferably 5-70% of anionic surfactant and/or nonionic surfactants;

ii) 5-70%, preferably 5-40% structure-forming agent;

(iii) 0-30%, preferably 1-12% peroxide;

iv) 0-10%, preferably 1-6% peroxide activator and/or 0-1%, preferably 0.1 to 0.3% of a bleaching catalyst;

v) 0.005 to 2%, preferably 0.01 to 1% of at least one of the compounds of formula (1A); and

vi) 0.005 to 10%, preferably 0.1 to 5% of one or more auxiliary agents, where each component is taken on the basis of the total weight of the detergent.

These detergent compositions I have e detergent may be made in the form of solids, in the form of an aqueous solution containing 5-50%, preferably 10-35%, water, or in the form of an anhydrous liquid detergent, containing not more than 5, and preferably 0-1 wt.% water, and made on the basis of a suspension agent to shape into a non-ionic surface-active substance, for example described in GB-A-2158454.

Anionic surfactant component may be, for example, sulphate, sulphonate or carboxylate surfactant, or mixtures thereof.

Preferred sulfates are the alkyl sulphates having 12-22 carbon atoms in the alkyl radical, optionally in combination with alkylalkoxysilane having 10-20 carbon atoms in the alkyl radical.

The preferred sulfonates are alkylbenzenesulfonate having 9 to 15 carbon atoms in the alkyl radical.

In each case, the cation is preferably an alkali metal, particularly sodium.

Preferred carboxylates are sarcosinate alkali metals of the formula R-(R1)CH2THE SOOMA1where R is alkyl or alkenyl with 9-17 carbon atoms in the alkyl or alkenylphenol radical; R1isthe component may be, for example, a condensate of ethylene oxide with primary9-C15alcohol having 3-8 moles of ethylene oxide to one mol of the alcohol.

Structure-forming component may be, for example, a phosphate of an alkali metal, in particular sodium tripolyphosphate; a carbonate or bicarbonate, and in particular its sodium salt; silicate or disilicate; aluminosilicate; polycarboxylate; polycarboxylic acid; an organic phosphonate; or aminoalkylindole (alkylester); or mixtures thereof.

The preferred silicates are sodium silicates, covered with crystal layer, and having the formula:

NaHSimO2m+1pH2O or Na2SimO2m+1pH2O,

where m is from 1.9 to 4, and p is 0-20.

The preferred silicates are commercially available synthetic materials called Zeolites a, b, X and HS, or mixtures thereof. Preferred is Zeolite A.

The preferred polycarboxylate are hydropathicity, in particular, citrates, polyacrylates and their copolymers with maleic anhydride.

Preferred polycarboxylic acids are nitryltriacetic acid and ethylenediaminetetraacetate acid.

Preadipocyte alkali metal, nitrilotriacetate alkali metal, ethylenediaminetetramethylene alkali metal, and diethylenetriaminepentaacetate alkali metal.

Peroxide component may be any organic or inorganic peroxide compound described in the literature or commercially available, which whitens the textile materials at standard temperature washing, for example, at temperatures in the range from 5 to 90oC. In particular, the organic peroxides are, for example, nonoperated or polyperoxide having an alkyl chain of at least 3 carbon atoms, preferably 6-20 carbon atoms; and of particular interest are also diperoxydicarbonate having 6-12 carbon atoms, such as, diphenoxybenzene, diphenoxybenzophenone, Diphenoxylate, and/or depreciationof, especially, their corresponding free acids. However, it is preferable to use the most active inorganic peroxides such as persulfate, perborate and/or percarbonate. It is also possible to use mixtures of organic and/or inorganic peroxides. These peroxides, especially organic peroxides, preferably activated by BB whitening which may be added are, for example, enzymatic peroxide precursors and/or metal complexes. Preferred metal complexes are complexes of manganese or iron, such as phthalocyanines manganese or iron, or complexes described in EP-A-0509787.

These detergents usually contain one or more auxiliary agents, such as, dirt-catching agents, for example, sodium carboxymethylcellulose, salts for the adjustment of the pH, for example, silicates of alkali or alkaline earth metals; agents that regulate the formation of foam, for example, Soaps, salts for spray drying and to give granulating properties, for example, sodium sulfate; odorants; and, if necessary, antistatic agents and softeners, such as, smectite clay; enzymes, such as amylase and protease; optical bleaching agents; pigments; and/or shading agents. These components should be stable for any bleaching system.

In addition, the present invention is illustrated by the following examples. Parts and percentages in the examples are by weight, unless otherwise specified particularly. The compound of example 9 was described by methyl cellulose and 40 ml of water, heating in an oil bath at a bath temperature of 120oC. was Then added to 7.61 g of D,L-glutamic acid, and the mixture was stirred at this temperature for 8 hours, and during this time, the pH value of the mixture was maintained at 8-9 by adding sodium carbonate. The reaction was completed after 8 hours. The free acid was besieged by treating the reaction mixture of 200 milliliters of acetone and 13 milliliters of concentrated HCl. The precipitate was filtered under vacuum and washed with acetone and water. The washed precipitate on the filter is suspended in 200 ml of water, was introduced into the solution by adding a sufficient amount of 30% aqueous sodium hydroxide solution at pH 8, and then concentrated by evaporation. After drying remained 10.0 g (theoretically 64%) of the compound of formula (101).

Elemental analysis of compounds having the formula (101) and the empirical formula C42H34N12O14S2Na68H2O0,25 NaCl0,7 PA2CO3revealed:

Calculated (%): 37,55, N OF 3.69; N 12,31; S 4,69; N2About 10,54; CL-0,65.

Found (%): 37,13; N 3,55; N 12,57; S 4,34; N2O 10,65; CL-0,66.

The original compound of formula (100) was obtained in a known manner, using first reaction frame thus the reaction product from 1 mol of aniline.

Example 2.

< / BR>
The method described in Example 1, 10 g of compound of formula (100) was stirred from 6.92 g of D-aspartic acid for 8 hours at an oil bath temperature of 120oC. After 8 hours, HPLC analysis of the reaction mixture confirmed that the reaction was complete.

After processing the reaction mixture in the manner described in Example 1 was obtained 10.0 g (theoretically 71%) of the compounds of formula (102).

Elemental analysis of compounds having the formula (102) and the empirical formula C40H30N12O14S2Na68H2O1,3 NaCl, showed:

Calculated (%): 36,28; N 3,50; N 12,69; S 4,84; Cl-3,48.

Found (%): 36,25; N 3,59; N 12,54; S 4,76; CL-3,48.

Example 3.

< / BR>
The method described in Example 1, 10 g of compound of the formula:

< / BR>
was subjected to reaction with 5,38 g D,L-aspartic acid and the reaction product was treated in the same way. After drying was obtained 4 g (theoretically 36%) of the compounds of formula (104) in the form of a white powder.

Elemental analysis of compounds having the formula (104) and the empirical formula C40H32N14Na6O18S412H2O showed:

Calculated (%): 32,48; H 3,81; N 12,25; S 8,67.

Found OSU reaction of chloride cyanuric acid with 4,4'-diamino-2,2'-silberdistel acid, then, using the reaction of thus obtained reaction product with 1 mole of 4-aminosulphonylphenyl.

The compound of the formula (104) gave excellent whiteness and the value of SES for cotton when applied to this cotton standard method of long-term treatment in a bath at 100oWith, or when management fabric at 70oC.

Example 4

< / BR>
A) 18,81 g chloride cyanuric acid (purity 98%) was dissolved in 95 ml of acetone and poured into 100 g of a mixture of ice and water. Within 30 minutes, a solution of 18.5 g diaminodiphenylsulfone acid (purity 100%) was added dropwise in 320 g of a mixture of ice and water at a temperature in the range from -5oWith 0oC. And finally for 15 minutes at the same temperature, was added dropwise 50 ml of 1 mol of soda, and the whole mixture was stirred for 1 hour. Then was added 13.5 g of 4-aminoacetophenone, and the mixture was heated to 50oC for 90 minutes. During this procedure, the pH of the reaction mixture was maintained at 7-8 by the addition of sodium carbonate. For completion of the reaction, acetone drove up until the temperature of the reaction mixture reaches 66oC. the Precipitated residue was filtered in vacuum at elevated temperature, washed with dilute aqueous concrete:

< / BR>
Elemental analysis of compounds having the formula (105) and the empirical formula C36H26N10O8Cl2S2Na26,0 H2Oh, have shown:

Calculated (%); With 42,57; N. Of 3.77; N 13,79.

Found (%): 42,59; N. Of 3.85; N 13,74.

B) 5 g of compound of formula (105), obtained as described in part (A), suspended in 100 ml of water. Then was added 1.3 g of taurine, and the reaction mixture was heated to 90oSince, however, the pH is maintained at 9-10 using sodium carbonate. Then these reagents were subjected to further reaction at this pH value, and this temperature for 15 hours. Finally, the reaction mixture was concentrated, and the compound (113) precipitated with acetone. After filtration under vacuum, washing with acetone and drying, were obtained 5.9 g (81% of theory) of the compound (113).

Elemental analysis of compounds having the formula (106) and the empirical formula C40H36N12Na4O14S40,66NaCl16,5H2O showed:

Calculated (%): From 32.8; H 4,74; N 11,47; S 8,75; Cl 1,60, Na 7,32.

Found (%): From 32.7; H 4,7; N 11,5; S 9,1; Cl 1,6; Na 7,4.

The compound having the formula (106), contributes to a significant recovery of whiteness and fluorescence pre-bleached paper, processed uke is e (107) via the reaction of compound (105) with 0.9 g zakrasin, used in place of taurine. This reaction was carried out for 6 hours, and theoretical connection output (107) was 93%.

Elemental analysis of compounds having the formula (107) and the empirical formula C42H36N12Na4O12S215 NM2O showed:

Calculated (%): 38,02; N 5,01; N 12,66.

Found (%): 38,10; N To 4.87; N 12,65.

The compound having the formula (107), contributes to a significant recovery of whiteness and fluorescence pre-bleached paper treated with the specified connection.

Example 6.

< / BR>
The method described in Example 4 was obtained compound (108) via the reaction of compound (105) with N-methyl-ethanolamine instead of taurine. This reaction was carried out for 6.5 hours, and theoretical output connection (108) was 81%.

This analysed the material is partially present in the form of N-methyl-ethanolamine salt.

Elemental analysis of compounds having the formula (108) and the empirical formula C42H42N12Na2O10S20,6 N-methylethanolamine2Oh, have shown:

Calculated (%): 47,0; N 5,02; N 15,78; S 5,73.

Found (%): 46,75; N To 4.92; N 15,46; S 5,71.

The compound having the formula (108), Spandau the specified connection.

Example 7.

< / BR>
10 g of compound of formula (105) were subjected to reaction with 5.8 g L-glutamic acid in 6:9 mixture (by mass) of water and methylcellosolve in an oil bath at 120oWith maintaining the pH at 8-9 by adding sodium carbonate. After 6 hours, the reaction was completed. The reaction mixture was added dropwise into acetone, acidified with HCl, after which the compound of the formula (109) was deposited in the form of the free acid After filtration under vacuum and washing with a mixture of acetone and water, the precipitate on the filter was converted to the corresponding hexanetriol salt by adding the calculated amount of aqueous sodium hydroxide, and evaporated to dryness. theoretical yield was 90%.

Elemental analysis of compounds having the formula (109) and the empirical formula C46H38N12Na6ABOUT10S20,3NaCl17H2O showed:

Calculated (%): From 35.9; H 4,71; N 10,92; S 4,16.

Found (%): 36,0; H 4,7; N 10,9; S 4,1.

The compound having the formula (109), contributes to a significant recovery of whiteness and fluorescence pre-bleached paper treated with the specified connection.

Example 8.

< / BR>
The compound of the formula (110) was obtained with a theoretical yield of 87% by the way, the description is.

Elemental analysis of compounds having the formula (110) and the empirical formula C44H34N12Na6O16S20,8NaCl15H2O showed:

Calculated (%): 35,1; N 4,28; N 11,16; S 4.26 Deaths.

Found (%): From 35.0; H 4,3; N 11,2; S 4,4.

The compound having the formula (110), contributes to a significant recovery of whiteness and fluorescence pre-bleached paper treated with the specified connection.

Example 9.

< / BR>
3.88 g of chloride cyanuric acid was dissolved in 50 ml of acetone, and the solution was poured into 20 g of ice. Then to this mixture for 2 hours at 0oC was added a solution of 5.32 g aniline-2,5-di-sulfonic acid, dissolved in 30 ml of ice water, while the pH was maintained at 6 by adding sodium carbonate. To the thus obtained reaction mixture for 1 hour at 30oWith dropwise added 3.7 g disodium salt of 4,4'-diaminostilbene-2,2'-disulfonic acid, dissolved in 50 ml of water, while the pH was maintained at 6 by adding sodium carbonate. After adding 5.29 g of L-glutamic acid, the pH is brought to 8.5, and acetone drove from the reaction mixture for 5 hours in a bath at a temperature of 95oC. the Free acid, corresponds had nutriental in vacuum. Then the filter residue was dissolved in 100 ml of water, and the solution was brought to pH 8.5. After evaporation and drying, got 17,5 g (theoretically 67%) of the compounds of formula (111).

Elemental analysis of compounds having the formula (111) and the empirical formula C42H30N12Na10O26S614,5NaCl182Oh, have shown:

Calculated (%): From 18.6; N 2,45; N 6,2; S 7,09; Cl 18,9; N2About 11,9.

Found (%): From 18.6; N 2,50; N 6,2; S 7,0; Cl 19,0; H2O 11,6.

Example 10.

< / BR>
In a manner analogous to the method described in Example 9, except that instead of L-glutamic acid was used an equivalent amount of D,L-aspartic acid, obtained compound of the formula (112) with a yield of 70%.

Elemental analysis of compounds having the formula (112) and the empirical formula C40H26N12Na10O26S61,18NaCl182O showed:

Calculated (%): 25.2; N Is 3.27; N 8,81; S 10,08.

Found (%): 25.2; N 3,3; N 8,8; S 9,8.

Example 11.

< / BR>
In a manner analogous to the method described in Example 9, except that instead of L-glutamic acid was used an equivalent amount of iminodiacetic acid, obtained compound of the formula (113) with the release of 60%.

Found (%): 23,70; N 3,68; N 8,29; S 9,48.

Examples 12-16.

Made a composition for coating having the following composition:

40 parts of China clay,

60 parts of calcium carbonate,

9 parts styrene/butyl rubber latex,

0.2 parts of polyvinyl alcohol, and

of 0.25 parts of poly(acrylic acid),

the pH of the composition for coating was brought to 9.5 by adding the required amount of NaOH.

To separate portions of the composition for coating was added to 0.2% or 0.4% (on the full weight of China clay and calcium carbonate) test fluorescent whitening funds (active substance). The dry matter content in the composition for coating was brought to 60 wt.%, and the whole mixture was stirred for 10 minutes. Then, on the base paper, which did not include a wood base and a fluorescent whitening agent, was applied composition for coating at a coverage density of 11 g/cm2using a laboratory knife coating. After drying infrared radiation and hot air whiteness (CIE-whiteness, measured with the SCAN-P 66:93) and brightness (ISO-brightness, smartscene each coated paper sample was determined based on the difference between the corresponding values of degree of whiteness and brightness, measured with and without the use of UV radiation in the light source.

Connection of the test fluorescent whitening funds had the formula:

< / BR>
The test results obtained using compounds having different substituents R are presented in table 1.

The compound used in Example 13, is a compound of Example 2; compound used in Example 14, is a compound of Example 3; the compounds used in Example 15, is a compound of Example 10, the compound used in Example 16, is a compound of Example 11.

The results presented in table 1 showed that the samples of paper covered in accordance with the present invention, have good levels of whiteness and brightness, as well as a good fluorescent properties.

Example 17.

< / BR>
The method described in Example 3, but using 5 g of starting compound of the formula (103), which was subjected to reaction with 1.8 g of a 40% aqueous solution of sarcosine received of 1.9 g of compound of formula (114).

Elemental analysis of compounds having the formula (114) and the empirical formula C38H34N

Examples 18 and 19.

Standard washing powder (ECE) were made from the following components, taken in the indicated amounts (wt.%):

8,0% (C11,5)Las sodium

2.9% of Simple ether alcohol obtained from animal fat, and tetradecane ethylene glycol (14 mol EO)

3.5% of Sodium soap

43.8% of sodium Tripolyphosphate,

of 7.5% sodium Silicate

1.9% of the magnesium Silicate

1,2% Carboxymethylcellulose

0,2% EDTA

21.2% of sodium Sulphate

0 or 0.2% of the Compound (104) or(114), respectively, and

water to 100%.

Liquid for washing was obtained by dissolving 0.8 g of the above washing powder in 200 ml of tap water. Then to the bath was added 5 g of reinforced cotton and washed for 15 minutes at 40oSince then I rinsed, drained by centrifugation, and stroked at 160oC. This washing procedure was repeated three times or ten times.

After the third and tenth leaching, the degree of whiteness of the samples was measured using spectrophotometer DCI/SF 500 according to the method Ganz (Ganz). Method Ganz described in detail in the review of Ciba-Geigy Review, 1973/1, as well as in the article "Whiteness Measurement", ISCC Conference on Flurescece and the Colorimetry of Fluorescent Materials, Williamsburg, February 1972, published the teachings, passing through the sample, using a spectrophotometer with dual diffraction grating, a vessel equipped with an integrating sphere. The calculation of SES were performed as described by B. L. Diffey and J. Robson in J. Soc.Cosm Chem. 40 (1989), PP 130-131. The results are presented in tab. 2.

1. The compounds of formula (1)

< / BR>
where X is NH;

M is hydrogen, alkali metal atom, ammonium or a cation formed from an amine;

R1each independent non-aromatic amino acid residue, from which is removed a hydrogen atom on the amino group;

n=1 or 2;

R2each independently is hydrogen, C1-C3alkyl, halogen, cyano, COOR, where R is hydrogen or C1-C3alkyl, CONH-R, where R has the above meaning, NH-COR, where R has the above value, SO2NH-R, where R has the above meaning, NH-COR, where R has the above value, SO3M, where M has the above meaning, or, if n=1, R2can also be CO-R3where R3- C1-C3alkyl or phenyl;

provided that excluded such compounds in which (a) X is NH, n=1, a R2- SO3M, where M has the above meaning; or b) X is NH, n=2, and one of R2- SO3M, where M has the above meaning, and the other R2- hydrogen, - O3M, where M has the above meaning, and the group of SO3M are in the 2-5-m positions of the phenyl ring and R1- D,L-alanine, L-valine, L-leucine, L-isoleucine, L-threonine, L-aspartic acid, L-glutamic acid, L-phenylalanine, L-Proline, D,L-methionine or glycine.

2. Connection on p. 1, in which all amino acid residues1are the same and each of them has the formula-NH-CH(CO2N)-R3where R3is hydrogen or a group of the formula-CHR4R5in which R4and R5independently is hydrogen or C1-C4alkyl, optionally substituted by one or two substituents selected from hydroxy, thio, methylthio, amino, carboxy, sulfo, phenyl, 4-hydroxyphenyl, 3,5-diid-4-hydroxyphenyl, indolyl, imidazolyl and NH= C(NH2)NH-.

3. The way the fluorescent whitening of the substrate, in which the contacting of the substrate with the compound of the formula (1A)

< / BR>
where X is NH;

M is hydrogen, alkali metal atom, ammonium or a cation formed from an amine;

R1each independent non-aromatic amino acid residue, from which is removed a hydrogen atom on the amino group;

n=1 or 2;

R'2each independently is hydrogen, C1-C32NH-R, where R has the above meaning, NH-COR, where R has the above significance, or SO3M, where M has the above meaning,

provided that excluded such compounds in which X is NH, n=2 and one of R2- SO3M, where M has the above meaning, and the other R2is hydrogen, methyl or halogen.

4. The method according to p. 3, in which the contacting surface of the paper with a composition for coating comprising a white pigment, the dispersion of the coupling agent, optionally a water-soluble co-binder and a sufficient amount of fluorescent whitening means of the formula (1A), so that the processed paper contains 0.01 to 1.0 wt.% fluorescent whitening means of the formula (1A) based on the weight of the white pigment.

5. The method according to p. 3, in which the contact paper in the size press with an aqueous solution containing an adhesive agent, optional inorganic or organic pigment and 0.1 to 20.0 g/l of the fluorescent whitening agent of the formula (1A).

6. The method according to p. 3, in which the fluorescent whitening agent of the formula (1A) is added to aqueous paper pulp in the wet state.

7. The way p the material of the textile fibers of 0.05 to 3.0%, in the calculation of the mass of material of textile fibers of one or more compounds of the formula (1A)

< / BR>
where X, M, R, R1, R'2n have the above values.

8. The method according to p. 7, which can also be used a small number of one or more adjuvants.

9. The method according to p. 8, in which these adjuvants include emulsifiers, perfumes, bleaching agents, enzymes, colorants, cloud emulsions, optical whitening agents, bactericides, neino gene surfactants, ingredients to care for fabrics, agents that prevent gelatinization, or corrosion inhibitors.

10. The method according to p. 7, in which the rinse material from textile fibers detergent containing at least one compound of the formula (1A), to give a washed out so the textile material with excellent shading properties.

11. The method according to p. 10, which use a detergent composition containing: (i) 5-90% of anionic surfactant and/or nonionic surfactant; (ii) 5-70% structure-forming agent; (iii) 0-30% of a peroxide; (iv) 0-10% of a peroxide activator and/or 0-1% ka is x auxiliary agents, moreover, the quantity of each component are based on the total weight of the detergent.

12. Textile material made from fibers treated by the method according to any of paragraphs.7-11.

13. The detergent composition for the fluorescent whitening of fabrics, containing: (i) 5-90% of anionic surfactant and/or nonionic surfactant; (ii) 5-70% structure-forming agent; (iii) 0-30% of a peroxide; (iv) 0-10% of a peroxide activator and/or 0-1% of a bleaching catalyst; and (v) of 0.005-2% of at least one of the compounds of formula (1A)

< / BR>
where X, M, R, R1, R'2n have the above values,

and (vi) of 0.005-10% of one or more auxiliary agents and the quantity of each component are based on the total weight of the detergent.

14. The way the fluorescent whitening of textile material or paper, involving contacting these textile material or paper with at least one compound of the formula (1A)

< / BR>
where X, M, R, R1, R'2n have the above values.

15. Detergent to save dyeing, including afluorescent compound of the formula (1A)

< / BR>

17.05.1997 on p. 6;

14.03.1998 on PP.7-15

 

Same patents:

The invention relates to a new method of obtaining compounds distributionally

The invention relates to the additive, which is used in detergents

FIELD: organic chemistry, paper industry.

SUBSTANCE: invention relates to compositions used for coating paper covers. Invention describes a composition for coating paper cover comprising whitening pigment comprising: (a) product of melamine formaldehyde or phenol-formaldehyde polycondensation, and (b) water-soluble fluorescent whitening agent of the formula:

wherein R1 and R2 represent independently of one another -OH, -Cl, -NH2, -O-(C1-C4)-alkyl, -O-aryl, -NH-(C1-C4)-alkyl, -N-(C1-C4-alkyl)2, -N-(C1-C4)-alkyl-(C1-C4-hydroxyalkyl)- -N-(C1-C4-hydroxyalkyl)2 or -NH-aryl, for example, anilino-, anilinemono- or disulfonic acid or aniline sulfone amide, morpholino-, -S-(C1-C4)-alkyl(aryl) or radical of amino acid, for example, aspartic acid or iminoacetic acid that is replaced with radical in amino-group; M means hydrogen, sodium, potassium, calcium, magnesium atom or ammonium, mono-, di-, tri- or tetra-(C1-C4)-alkylammonium, mono-, di- or tri-(C1-C4)-hydroxyalkylammonium, or ammonium di- or tri-substituted with a mixture of (C1-C4)-alkyl and (C1-C4)-hydroxyalkyl groups. Covers prepared on coating paper elicit high photostability and enhanced whiteness degree.

EFFECT: improved method for preparing, improved properties of covers.

7 cl, 1 tbl, 3 ex

FIELD: chemistry.

SUBSTANCE: invention concerns fluorescent bleach containing a mix of two asymmetrically substituted and one symmetrically substituted triazinylaminostilbene disulfone acid, a new symmetrically substituted derivative, method of their obtaining, and application of the mix in synthetic or natural organic material (especially paper) bleaching and in fluorescent bleaching and sun resistance boost of textile.

EFFECT: high substantivity and light resistance of the claimed fluorescent bleaches and their mixes, and better water solubility of the claimed mixes in comparison to the solubility of each individual bleach.

15 cl, 2 tbl, 12 ex

FIELD: chemistry, textiles, paper.

SUBSTANCE: present invention relates to new amphoteric bis-triazinylaminostilbene fluorescent whitening agents for fluorescent whitening of organic materials, particularly paper. Description is given of use of compounds with formula (5) for fluorescent whitening of paper.

EFFECT: compounds have high bleaching power; fluorescence is not prevented by cation-active polymers or anion-active fluorescent whitening agents contained in the paper.

2 cl, 2 tbl, 48 ex

FIELD: chemistry.

SUBSTANCE: invention relates to concentrated aqueous solutions of hexa-sulfonated stilbene used optical brighteners. Description is given of an aqueous solution of hexa-sulfonated stilbene optical brightener which is stable during storage with over 0.214 mol/kg content thereof in the solution. The solution does not contain a soluble agent, for example urea. By removing salts formed during synthesis of the optical brightener, its concentration of up to 0.35 mol/kg can be achieved without losing stability during storage. Also described is a method of preparing an aqueous solution of the said optical brightener and its use for bleaching paper or cellulose materials.

EFFECT: high concentration solutions of the said optical brightener do not show crystallisation signs after 2 weeks at 5°C and enables formation of coating compositions with low water content, which reduces energy consumption on drying and reduces penetration of water and adhesive into the paper layer.

10 cl, 1 dwg, 1 tbl, 3 ex

FIELD: chemistry.

SUBSTANCE: present invention relates to a method of treating and modifying materials. Described is a method of preparing materials which protects said materials from UV radiation and ozone using a modifier, involving obtaining the modifier by reacting a stilbene derivative in form of 4,4'-bis(s-triazinyl-)diamine-2,2'-disulphostilbene at temperature of up to 55°C in the presence of water with diamine of carbonic acid in amount of 0.5-55 wt % with respect to weight of said stilbene derivative, and material such as foamed or foamable plastic, cement or concrete is then directly treated with the prepared modifier, and/or active radicals of said modifiers are introduced into the surface of said materials. Described also is a method of preparing materials for their protection from UV radiation and ozone using a modifier, involving obtaining the modifier by inoculating a stilbene derivative in form of 4,4'-bis(s-triazinyl-)diamine-2,2'-disulphostilbene with solid diamine of carbonic acid with crystal size less than 40 mcm at 55°C in the absence of water, by grinding the modifiers in a mill and homogenisation at ambient temperature for more than 4 hours, with amount of diamine of carbonic acid of 0.1-45 wt % with respect to the solid stilbene derivative, and material such as foamed or foamable plastic, cement or concrete is then directly treated with the prepared modifier, and/or active radicals of said modifiers are introduced into the surface of said materials.

EFFECT: elimination of negative effect of UV radiation and ozone on surface of materials.

2 cl, 4 ex

FIELD: chemistry.

SUBSTANCE: invention relates to solutions of optical bleaching agents which are stable during storage, based on defined salt forms of aniline-substituted bis-triazinyl derivatives of 4,4'-diaminostilbene-2,2'-disulphonic acid of formula where R denotes a hydrogen atom, R1 denotes a β-hydroxyalkyl radical having 2-4 carbon atoms, R2 denotes a hydrogen atom, M+ denotes Na+, n is less than or equal to 1.5; which do not require additional dissolution promoting additives.

EFFECT: high stability of the compounds during storage.

14 cl, 2 tbl, 6 ex

FIELD: chemistry.

SUBSTANCE: composition contains at least one fluorescent bleaching agent from bis-triazinylaminostilbene compounds containing taurine groups in a triazine nucleus, having formulae (1), (2) and (3). The composition is used to bleach paper in a wet process, in a gluing press or by coating.

EFFECT: increased whiteness.

25 cl, 2 dwg, 2 tbl, 3 ex

FIELD: chemistry.

SUBSTANCE: described is water solution of optic bleach, which contains from 10 to 40 wt % of compound, described by formula (1) [M+]n [(CH3)2NH+CH2CH2OH]2-n, where R is hydrogen or methyl, M+ represents Li, Na or K+, n is smaller or equals 1.5, and from 0.05 to 5 wt % of citric, glycolic, acetic or formic acid, method of claimed solution obtaining and its application for optic bleaching textile, paper, cardboard and non-woven materials and methods of paper bleaching.

EFFECT: water solution of optic bleach is stable in storage and does not require application of additional solubilising additives.

10 cl, 8 ex, 2 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to compositions for optic whitening of paper or cardboard. Composition includes at least two fluorescent whitening agents - derivatives of disulphonic bis-triazinylaminostilbenes, containing group -CO2M in aniline rings in para and/or ortho-position to aminogroup, where M is hydrogen, Li, Na, K, Ca, Mg, ammonium or ammonium, which is mono-, di-, tri- or tetra-substituted C1-C4-alkyl or C2-C4-hydroxyalkyl. Described is method of preparing said composition, its application, method of paper whitening and paper resulting from said process.

EFFECT: claimed composition possesses higher whitening ability in comparison with each of separate whitening agents and provides stable concentrated water compositions without addition of auxiliary solubility-improving substances.

25 cl, 1 dwg, 1 tbl, 4 ex

FIELD: chemistry.

SUBSTANCE: invention relates to disulphonic fluorescent bleaching agents for a coating composition for obtaining a coated paper. Described is the application of the disulphonic fluorescent bleaching agent derivative of bis-triazinylaminostilbenes, containing in aniline rings the group -COOM in a para- and/or ortho-position to an aminogroup, where M is hydrogen, Li, Na, K, Ca, Mg, ammonium or ammonium, which is mono-, di-, tri- or tetrasubstituted with C1-C4-alkyl or C2-C4-hydroxyalkyl, for the clarification of the coating compositions. The coating composition includes a white pigment, a synthetic binding agent, a synthetic cobinding agent, different from the synthetic binding agent, and the said fluorescent bleaching agent. The method of the coating composition clarification, its application for manufacturing the coated paper and the obtained paper are described.

EFFECT: claimed coating composition provides an increased efficiency of paper bleaching.

25 cl, 4 dwg, 4 tbl, 4 ex

FIELD: chemistry.

SUBSTANCE: described is a composition, containing (A) 2 to 30 wt % composition of amino alcohol - 2-amino-2-methyl-1-propanol with formula (1), and (B) 70 to 98 wt % composition of fluorescent optical bleaching agent with formula (2) , where X - is hydrogen, ion of alkali metal or ammonium, or hydroxyalkylammonium radical, derived from amino alcohol (1); R7, R8, R9 and R10 - -OR11, -NR11R12 or , where R11 and R12 - is hydrogen, alkyl, hydroxyalkyl, alkoxyalkyl, carboxyalkyl, dicarboxyalkyl, H2N-CO-alkyl or alkylthio group.

EFFECT: high solubility in water and increased stability when storing its aqueous solutions.

4 cl, 3 tbl, 3 ex

FIELD: chemistry.

SUBSTANCE: claimed invention relates to method of tainting during washing by means of special flue or violet bis-azo dyes, separately or in combination with photocatalyst. Other objects of claimed invention represent composition, containing at least one photocatalyst and at least one of special bis-azo dyes. Composition in accordance with claimed invention is especially suitable for tainting fabrics during washing. Other objects of claimed invention represent detergent composition, fabric-softening composition, containing said dyes or mixtures of said dyes and photocatalysts, and new blue or violet bis-azo dyes.

EFFECT: reduction of dye accumulation on fabric after several washing cycles.

15 cl, 3 tbl, 36 ex

FIELD: chemistry.

SUBSTANCE: invention relates to compositions for washing clothes containing thiofenazocarboxylated tone dyes for fabrics and a method of processing textile materials, including such compositions for washing clothes. Described is a method of processing textile material containing polyester and/or nylon, herewith the method includes the steps of: (i) textile material processing with aqueous solution containing auxiliary means for washing clothes and 1 part per billion of up to 500 ppm thiofenazocarboxylated dye; and (ii) washing and drying the textile material, herewith the dye contains a colouring agent, having the structure of Formula I:

,

where R1 and R2 are independently selected from [(CH2CR′HO)x(CH2CR″HO)yQ], C1-12 alkyl, C7-C22 arylalkyl, provided that at least one of R1 and/or R2 represents [(CH2CR′HO)x(CH2CR″HO)yQ], where R′ is selected from a group consisting of H, C1-4 alkyl CH2O(CH2CH2O)zQ; where R″ is selected from a group consisting of H, C1-4 alkyl, CH2O(CH2CH2O)zQ; where 1≤x+y≤50; where y≥1; where z = from 0 to 20 and where Q is selected from a group consisting of H and Y, where Y is such as specified below; provided that the colouring agent contains at least one group Q, which is Y; and where Y is an organic radical described in Formula II:

,

where independently for each group Y, M is H or cation, balancing the charge; m is from 0 to 5; n is from 0 to 5; sum of m+n ranges from 1 to 10; each R8 is independently selected from a group consisting of H and C3-C18 alkenyl, and where at least one group R8 is not H.

EFFECT: provision of tone dye effect, uniform tone during precipitation onto a number of fabrics.

74 cl, 2 tbl, 34 ex

FIELD: printing industry.

SUBSTANCE: invention relates to an optical bleaching agent comprising of a mixture of compounds of the formulas

and

wherein R is hydrogen or methyl; Y is an amino acid that is derived from aspartic acid, glutamic acid or iminodiacetic acid and from which the hydrogen atom of the amino group is removed; and M is an alkali metal cation. The invention also relates to an optical bleaching agent comprising a compound of formula (4), to a process for preparing an optical bleaching agent, to a compound of formula (4), to a composition for bleaching paper surface, and to paper optically bleached with an optical bleaching agent.

EFFECT: new optical bleaching agents are obtained, providing a bleaching effect when applied to the paper surface.

14 cl, 1 tbl, 9 ex

FIELD: organic chemistry, paper industry.

SUBSTANCE: invention relates to compositions used for coating paper covers. Invention describes a composition for coating paper cover comprising whitening pigment comprising: (a) product of melamine formaldehyde or phenol-formaldehyde polycondensation, and (b) water-soluble fluorescent whitening agent of the formula:

wherein R1 and R2 represent independently of one another -OH, -Cl, -NH2, -O-(C1-C4)-alkyl, -O-aryl, -NH-(C1-C4)-alkyl, -N-(C1-C4-alkyl)2, -N-(C1-C4)-alkyl-(C1-C4-hydroxyalkyl)- -N-(C1-C4-hydroxyalkyl)2 or -NH-aryl, for example, anilino-, anilinemono- or disulfonic acid or aniline sulfone amide, morpholino-, -S-(C1-C4)-alkyl(aryl) or radical of amino acid, for example, aspartic acid or iminoacetic acid that is replaced with radical in amino-group; M means hydrogen, sodium, potassium, calcium, magnesium atom or ammonium, mono-, di-, tri- or tetra-(C1-C4)-alkylammonium, mono-, di- or tri-(C1-C4)-hydroxyalkylammonium, or ammonium di- or tri-substituted with a mixture of (C1-C4)-alkyl and (C1-C4)-hydroxyalkyl groups. Covers prepared on coating paper elicit high photostability and enhanced whiteness degree.

EFFECT: improved method for preparing, improved properties of covers.

7 cl, 1 tbl, 3 ex

FIELD: household chemistry, in particular compositions for bleaching of white and random dyeing textile made of natural, artificial, synthetic and mixed fibers.

SUBSTANCE: claimed composition contains (mass %): hydrogen peroxide 7-11; oxanole 0.5-1.0; oxyethylidenediphosphonic acid 0.1-0.3; optical bleaching agent, namely mixture of benzoxyzaryl derivative 0.1-0.2 and stilbenesulfo acid 0.1-0.2; and balance: water.

EFFECT: non-layered composition during storage; decreased chemical failure of materials.

2 tbl, 12 ex

FIELD: chemistry.

SUBSTANCE: invention concerns fluorescent bleach containing a mix of two asymmetrically substituted and one symmetrically substituted triazinylaminostilbene disulfone acid, a new symmetrically substituted derivative, method of their obtaining, and application of the mix in synthetic or natural organic material (especially paper) bleaching and in fluorescent bleaching and sun resistance boost of textile.

EFFECT: high substantivity and light resistance of the claimed fluorescent bleaches and their mixes, and better water solubility of the claimed mixes in comparison to the solubility of each individual bleach.

15 cl, 2 tbl, 12 ex

Up!