Pigment concentrate for coating dyeing leather in black color
(57) Abstract:The inventive pigment concentrate black color for dyeing leather contains black carbon 9,0 - 12,0% , alizarin oil 1,00 - 1,66% , 25% aqueous ammonia solution for 0,19 0,31% , 10% aqueous solution of casein 26,20 - 39,20% , 26% methacrylic emulsion on THE N 6-01-1289-85 0,72 - 1,14% , dispersant NF 0,09 - 0,27% , 2% aqueous solution of carboxymethyl cellulose 3,85 - 9,00% , phenyl of 0.025 - 0.1% , the toluene of 0.004 to 0.01% , water the rest. Pigment concentrate has ukryvistostju equal to 1.4-1.6 g/m2. table 1. The invention relates to dyes and can be used in the production of pigment concentrates of black color for dyeing leather.The claimed invention is directed to solution of the problem consisting in the provision of improved indicators of paint, namely, coverage, depth of coloration of the skin.Known composition of the pigment concentrate for finishing leather that includes the following components, wt. % : pigment 45-55; alizarin oil 8-12; nekal 8-12; dispersant NF (the condensation product of naphthalene sulfonic acids with formaldehyde and neutralized with sodium hydroxide) 2-3 and water the rest.The disadvantage of this analog is low Healey skin, containing, by weight. % : soot 20-24; glycerin or ethylene glycol 10-17; triethanolamine 2-4; phenol of 0.2-0.3; dispersant NF 2,5-3,0; alizarin oil 1-3; nigrosine 1-5; p-phenyleneamine 0.1 to 5; hydrogen peroxide 0-2; water, to 100.The disadvantage of analog is insufficient opacity (9 g/m2and the depth of the colour.The closest to the technical nature of the claimed invention is selected as a prototype structure for surface dyeing of leather, which contains, by weight. % : carbon black furnace 51-54; methyl cellulose 0.25 to 0,27; alizarin oil from 0.25 to 0.27; 25% ammonia solution 0,18-0,20; 10% aqueous solution of casein 17-18; 20% aqueous wax emulsion 4-5, 20% aqueous emulsion of a copolymer of methyl acrylate, butyl acrylate and methacrylic acid 26-27; 20% aqueous emulsion of a copolymer of butadiene with methyl methacrylate 26-27; water, to 100.The prototype of the invention has the following similar significant features.The presence of the pigment concentrate of carbon black as a black pigment; a derivative of cellulose to increase the strength of the coating; solution of casein to improve the adhesion of the film to the surface of the skin; alizarin oil and wax emulsion as a plasticizer; dissolve the future.The disadvantage of the prototype is the low quality of the coloring composition, which is manifested in low values for opacity (5 g/m2), insufficient depth of color (graphite shade).This disadvantage is due to the fact that used as part of the prototype components, namely, methyl cellulose as a gelling agent contributes to the strength of the resulting layer, but does not provide sufficient opacity due to the lack of soot interaction with the skin. The use of derivatives of acrylic acid promotes the strength of the film, but does not provide sufficient dispersion of the pigment, which reduces covering ability.The aim of the invention is to improve the quality of the coloration of the skin and reduction of pigment concentrate by improving the opacity of the pigment, which is manifested in terms of coverage.To achieve the objectives of the claimed invention "Pigment concentrate black color for dyeing leather" contains a set of components necessary and sufficient to achieve the goal.Soot carbon (9-12 wt. % ); alizarin oil (1,0-1.66 wt. % ); 25% aqueous who dispersant NF (0,09-0.27 wt. % ); 2% aqueous solution of carboxymethyl cellulose (3,85-9 wt. % ); phenol (0,025-01, mass. % ); toluene (of 0.004-0.01 wt. % ); water, to 100.In relation to the prototype of the claimed invention has the following distinctive features. Use as a derivative of cellulose carboxymethycellulose (CMC) contributes to the process of interaction between the components of the concentrate with skin and improves the covering power and durability of the dye layer.Use as derivatives of acrylic acid polymers of methyl acrylate, increasing the degree of disaggregation of the emulsion and prevents the process of agglomeration of particles.Additional introduction as a stabilizer of toluene and phenol.The additional introduction of the pigment concentrate dispersant NF contributing to the dispersion of pigment particles, leads to increasing coverage and decreasing pigment.Between the features and the aim of the invention is the following cause-and-effect relationship. Use as derived cellulose carboxymethyl cellulose together with the introduction of the methyl acrylate and the introduction of additional dispersant NF leads not only to optimizarea full interaction of the concentrate with the painted surface, increasing the hiding power of the pigment is from 5 to 1.4-2.7 g/m2in the result, the flow of the pigment is reduced more than in 2 times and deepening colors of the painted skin.Know the use of dispersant NF in the paint coating dyeing of leather, in quantity at a higher claimed, however, this goal is achieved only when the NP in combination with carboxymethylcellulose.The possibility of implementation of the invention using the combination of the claimed features is confirmed by the examples.P R I m e R 1-4. The pigment paste is obtained on the basis of carbon black, alizarin oil, 25% aqueous ammonia solution, 10% aqueous solution of casein, 25% methacrylic emulsion dispersant NF, 2% aqueous solution of carboxymethyl cellulose, phenol, toluene and water. The mixture was thoroughly stirred with a stirrer at ambient temperature until complete mixing of the components.The table shows the quantitative content of the concentrate and opacity.The choice of boundary values for the number of components of the pigment concentrate is due to the fact that the lower values of components are required which leads to improved coverage.By reducing the content of 2% aqueous solution of carboxymethylcellulose less of 3.85 wt. % does not enhance the interaction between the components of the concentrate with skin and covering ability is reduced. The increase in the content of this component more than 9.00 wt. % impractical because does not improve quality.Reduction soderjanii NF less than 0.09 wt. % leads to deterioration of dispersibility of the particles, which reduces covering ability, increase greater than 0.27 wt. % impractical because does not improve quality.The decrease in the content of methacrylic emulsion, phenol and toluene less 0,72, 0,025, 0.004 wt. % respectively leads to the formation of agglomerates, increasing the top of the proposed limits is impractical because of the properties of the pigment are not changed. In addition, phenol and toluene in the concentration ensure the safety of concentrate from damage during storage. Industrial applicability is confirmed by the test report. (56) USSR Author's certificate N 1475923, CL 14 With 11/00, 1989.USSR author's certificate N 1317006, class 09 In 67/00, 1987.USSR author's certificate N 876813, class D 06 P 3/32, 1981. PIGMENT CONCENTRATE FOR COATING DYEING LEATHER IN BLACK COLOR, again a derivative of acrylic acid and water, characterized in that as a derivative of cellulose it contains carboxymethylcellulose, as a film-forming acrylic emulsion based on the product of emulsion polymerization of methyl acrylate, and optionally, phenol, toluene, and dispersant NF based dinaftiletilena sodium in the following ratio, wt. % :
Carbon black 9,0 - 12,0
Alizarin oil 1,0 - 1,66
Carboxymethyl cellulose (2% aqueous solution) of 3.85 - 9,00
Ammonia (25% aqueous solution) for 0,19 0,31
Casein (10% aqueous solution) 26,20 - 39,20
Acrylic emulsion based on the product of emulsion polymerization of methyl acrylate (25%) 0,72 - 1,14
Phenol 0,025 - 0,1
Toluene 0,004 - 0,01
Dispersant NF 0,09 - 0,27
Water The Rest
FIELD: organic chemistry, dyes.
SUBSTANCE: invention relates to the dispersed dyes comprising N-methylphthalimide-diazo-component and a coupling aniline component. Invention proposes a dye of the formula (1): wherein R means hydrogen or bromine atom; R1 means hydrogen atom, methyl or -NHCO-(C1-C4)-alkyl; R2 means (C1-C4)-alkyl substituted with (C1-C4)-alkoxy-group; R3 has any value among R2 being independently of R2. Invention proposes a mixture of dyes comprising at least one azo dye of the formula (1) and at least one azo dye of the formula (4): wherein R1 means hydrogen atom, methyl or -NHCO-(C1-C4)-alkyl; R2 means (C1-C4)-alkyl wherein is possible but not obligatory that C2-alkyl chain or comprising more carbon atoms is broken with oxygen atom, and R has any value of R being independently of R2. Also, invention proposes a method for coloring or printing on semisynthetic or synthetic hydrophobic fibrous materials wherein dye of the formula (1) or mixture of dyes of formulae (1) and (4) is applied on such materials or added in them. Invention proposes dispersed dyes providing coloring characterizing by high strength degree in laundry and against sweat.
EFFECT: valuable properties of dyes.
7 cl, 2 tbl, 3 ex
SUBSTANCE: invention relates to active dyes designated for staining or printing of hydroxy- or nitrogen-containing organic substrates. Invention describes novel monoazo dyes comprising sulfatoethylsulfonyl groups of the formula (1) given in the invention description, mixtures of dyes and their using for staining or printing of hydroxy- or nitrogen-containing organic substrates and in dyes for jet printing. Proposed dyes provide the enhanced light resistance of painting and mixtures of dyes comprising the proposed dye possess the enhanced dyeing capacity as compared with individual dyes.
EFFECT: improved and valuable properties of dyes.
8 cl, 3 tbl, 45 ex
FIELD: organic chemistry, dyes.
SUBSTANCE: invention relates to dispersed dyes based on N-butylphthalimidyldiazo component and aniline azo component that are designated for staining and printing on semisynthetic and synthetic hydrophobic fibrous materials. Invention describes dyes of the formula (1): wherein R1 means hydrogen atom, methyl or -NHCO-(C1-C4)-alkyl; R2 means (C1-C4)-alkyl wherein is possible but optionally the alkyl chain comprising C2- or more carbon atoms is broken by oxygen atom; R3 has any value of R2 but independently on R2. Also, invention describes a mixture of dyes comprising at least two structurally different dyes of the formula (1). Proposed dyes of the formula (1) and mixtures of indicated dyes provide staining on semisynthetic and synthetic fibrous materials with good strength indices, especially, to laundering and perspiration. Proposed dyes of the formula (1) possess the enhanced staining intensity and thermal stability as compared with the known similar dyes comprising ethyl group near nitrogen atom of phthalimidyl radical.
EFFECT: improved properties of dyes.
7 cl, 1 tbl, 3 ex
FIELD: organic chemistry, azo dyes.
SUBSTANCE: invention relates to azo dyes designated for coloring or printing on synthetic or semisynthetic fibrous materials. Invention describes azo dyes of the formula (1) given in the invention description comprising residue 2-NHR3-3-cyano-4-methyl-NHR2-methylpyridine as azo-containing component wherein R2 means unsubstituted or substituted aryl radical or unsubstituted or substituted aralkyl radical; R3 means unsubstituted or substituted aryl radical or unsubstituted or substituted aralkyl radical under condition that one of substitutes R2 and R3 represents unsubstituted or substituted aryl radical and another substitute represents unsubstituted or substituted aralkyl radical wherein indicated substituted aralkyl radical is not 2-hydroxy-2-phenylethyl. Also, invention describes mixtures comprising at least two structurally different azo dyes of the formula (1), and tricolor mixture based on red azo dye of the formula (1), sky-blue and yellow dye. Dye mixtures based on azo dye of the formula (1) possess the enhanced staining capacity as compared with individual dyes and increased stability of coloring to light and alkali at high temperatures.
EFFECT: improved and valuable properties of azo dyes.
10 cl, 2 tbl, 2 ex
FIELD: dyes and dyeing processes.
SUBSTANCE: invention relates to a process of dyeing or printing on hydroxy- or nitrogen-containing organic substrates with active dye mixtures. Invention describes triad dyeing or printing process using dye mixture containing (i) red coloring compound of formula (I): (I), where R1 represents saturated or unsaturated C1-C4-alkyl; R3 and R4, independently of each other, represent H, OH, CN, C1-C2-alkyl, SO3H, COOH, O-C1-C2-alkyl, or NH2; X is halogen atom; and Y is -CH=CH2 or -CH2CH2-Z (Z = alkali-cleaved moiety); (ii) yellow or orange coloring compound and blue coloring compound. Mixtures of active compounds for triad dyeing or printing as well as hydroxy- or nitrogen-containing organic substrates printed therewith are also described.
EFFECT: achieved high compatibility of dyes resulting in quality triad dyeing or printing.
SUBSTANCE: there is disclosed process for making storage-stable concentrated aqueous anionic dyeing preparations, implying that aqueous solution or suspension of at least one impure anionic dye of formula (I) is ultrafiltered and concentrated. Solubilising, dispersing additives and surface-active substances are not used in said preparations. Besides there are disclosed dyeing preparations, mixtures and toners with anionic dyeing additives applied for colouring and printing of fibrous materials, woodworking and ink manufacturing for ink-jet printing.
EFFECT: concentrated anionic dyeing preparations are characterised with long-term stability and eliminate solubilising additives.
12 cl, 1 tbl, 23 ex
SUBSTANCE: invention relates to an aqueous colloidal suspension of carbon black which can be used in ink, such as jet printing ink, lacquer, printing dyes, latex, in textile and leather products, in adhesives, silicon materials, plastic materials, concrete and in construction materials. Described is an aqueous colloidal suspension of carbon black which contains carbon black, an azocompound of general formula 1 and water. The said carbon black suspension is obtained by dispersing carbon black and an azocompound of general formula 1 in water.
EFFECT: carbon black suspension has high degree of dispersion and low flocculation capacity which gives ink made from the said suspension high optical density.
17 cl, 3 dwg, 6 tbl, 6 ex
SUBSTANCE: invention can be used for dyeing or printing fibrous materials, which contain nitrogen atoms or hydroxy groups. Mixtures of dyes, containing, at least, one dye, colouring red, of formula (1) , at least, one dye from a group of formulae (2) and (4) and, at least, one dye from a group of formulae (3) , (5) and (6) .
EFFECT: invention makes it possible to obtain a composition of dyes, applied for two-coloured or three-coloured dyeing of fibrous materials, possessing high resistance to light and water, good colour saturation and high chemical activity.
11 cl, 7 tbl, 6 ex
FIELD: physical method for leather staining.
SUBSTANCE: claimed simplified method includes spraying of dyeing composition, containing (mass %): diphenylamine 0.3-2.0; tetrabromomethan 5.0-10.0; α-naphthol 0.01-0.03; and balance: methyl methacrylate-based varnish, onto the leather face, followed by ultraviolet exposure with wave-length of 300-400 nm at 25-300C for 0.5-1.0 min. Ferrocene and/or indole may be added in dyeing composition to complete color variety.
EFFECT: leather with improved hydrophobicity and physicochemical resistance.
2 cl, 2 tbl, 3 ex
FIELD: leather industry.
SUBSTANCE: invention relates to area of dyeboarding operations in leather production, in particular to a method of dyeing genuine leather with active dyes including intermediate product neutralization, active dye dyeing and subsequent fixation with alkaline reagent. According to invention, neutralization is effected in presence of preparation "Deep Dying" in amount 4.5-5.0% of the weight of planned leathers, dyeing is effected with active dye consumed in amount 2.5-5% at medium pH 3.4-3.5 in presence of 0.9-1.2 g/L alizarin oil, and fixation of dye is performed simultaneously with greasing at medium pH 8.5-8.9 with sodium hydrocarbonate consumed in amount 1.3-1.8%, greasing composition in amount 3.8-4.2%, and "Polinap AD" in amount 1.8-2.2 of the weight of planned leathers. Finally leather is rinsed in presence of nonionic surfactant consumed in amount 0.8-1.2 g/L.
EFFECT: optimized dyeing composition and dyeing conditions.
1 tbl, 9 ex
FIELD: tanning industry.
SUBSTANCE: process is conducted in vertical mill to which soot, induline, kerosene and diesel fuel are introduced. Then components are mixed and slow heating the apparatus and its content is started after which mixing is switched off and slow heating of mill content is continued. Upon expiration of said time, acids or their compositions, white spirit and fatty additive are introduced and chemical mass-exchange process is performed at spontaneously fixed temperature due to thermal effects of this process and natural cooling at the beginning and at the end, as well as due to forced cooling at intermediate stage characterized by high rates of temperature at maximum of 140-150°C. At the moment when forced cooling is discontinued, 0.5-1.5 h before discontinuation of mixing and beginning of withdrawal at temperature of 80-115°C, 43-52-% solution of aluminum salts and C10-C20 of carboxylic acids is introduced into product being prepared.
EFFECT: facilitated procedure; increased amount of product.
1 tbl, 15 ex
FIELD: leather industry.
SUBSTANCE: preparation of composition is conducted on vertical-type bead mill. Induline, kerosene, and diesel fuel are consecutively charged into mill before stirring mechanism is energized, after which apparatus and contents thereof are slowly heated. Stirring is then stopped for 1 h while slow heating of mill contents is continued. When specified time expires, carboxylic acid or acid mixture, white spirit, fat additive, and aluminum oxide or hydroxide are added. Mechanic stirring is then switched on and contents of the bead mill are ground and the process is carried out at spontaneously fixed temperature caused by heat effects of the processes and natural cooling. When temperature is lowered to 85-120°C, desired product is discharged.
EFFECT: simplified process and increased product discharge degree.
1 tbl, 19 ex