Composition for dyeing with pigments of textile materials

FIELD: textiles, paper.

SUBSTANCE: invention contains a pigment, at least one copolymer as a film binder, antimigrant and water. As the copolymer it contains a preparation which is a styrene-vinyl-acetate-acrylic copolymer obtained by method of emulsion polymerisation. As antimigrant it contains a preparation which is a copolymer of (meth)acrylic monomers, obtained by method of emulsion polymerisation.

EFFECT: invention enables to improve the strength of staining, to obtain a uniform staining of material, to ensure the ability to use a composition for textile materials of different chemical composition and texture, as well as to eliminate an environmental hazard when using the composition.

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Introduction

The invention relates to chemical technology of textile materials, and in particular to compositions for dyeing textile materials pigments.

The level of technology

Technology pigment dyeing compared to other methods of dyeing has several advantages: simple technology, high capacity, uniform dyeing of textile materials from mixtures of natural and chemical fibers, wide color gamut and high resistance colors to light and wet treatments. Dyeing pigments economically advantageous, because the pigment is fixed on fabric in the polymeric film is firmly attached to the fiber, and therefore there is no need for subsequent rinsing of the fabric.

Composition for dyeing in addition to the pigment includes a binder, promoting fixing of the pigment to the textile material due to the formation of the film. Because of the quality of the binder depends largely on the quality of the painting, so it has special requirements. The film binder should be transparent, flexible, environmentally friendly, must have good adhesion to the pigment particles to the fiber and be resistant to mechanical and chemical influences, light, heat and ageing. To find the individual compounds responsible to all the Plex requirements it is very difficult, therefore more likely to use the composition of two components - film - and sethaputra drugs. As a rule, as a film-forming drug use derivatives of acrylic acid - latexes and emulsions, and as setcompression component use of methylol derivatives of urea and triazine, which in the presence of a catalyst capable of forming covalent bonds between the macromolecules of cellulose and pigment and film-forming polymer (Paglabas "Application of polymers of acrylic acid and its derivatives in the textile and light industry". M., "Light industry", 1975).

Known composition for dyeing pigments of cotton fabrics (Ito "Chemical technology of finishing production / training. for universities/): RIO Bauman, 2002). It contains, g/l:

- pigment-dye -10;
- film-forming medication
(acrylate latex - emugel M) -100;
- setcoursename medication
(precondensed melamine-formaldehyde
resin - metasin) -150;
- catalyst
(ammonium chloride) -15;
- antimigrant
(sodium alginate) -1;
- lubricant -1
- waterup to 1 L.

Known composition used for combined technology of dyeing pigments and final finishing of cotton fabrics (Navagero "Finishing of cotton fabrics": a Handbook / edited Benmelech, Egorov, N., Lebedev V.I., Smirnov O.K., Zakharova ETC. etc. - Ivanovo: Izd-vo "Talka", 2003). Often use clean carbamoyl and composition multiple Karamanov, such as karamali TSEM and CH (or carbama without index) in a 1:1 ratio. Also the best results are obtained when using a mixture of amukela emulsion PVA. As a softener used in the preparation NGL - 94 or emulsion PE, as catalysts, ammonium sulfate, magnesium chloride, or ammonium chloride, as antimigrant - polyvinyl alcohol or sodium alginate. It contains, g/l:

the pigment with the brand TS -15the foaming agent(acrylate latex - emugel M) -10-20,- sethorizontal(carbamoyl TSEM) -up to 180-200,- softner -10-20,catalyst -15,- antimigrant -1-5,the- waterup to 1 L.

These compositions for dyeing pigments textile materials have several disadvantages:

1. The compositions do not meet the requirements of environmental safety, as the tissue in the working zone air and emissions to the atmosphere is toxic allergen - formaldehyde. To reduce its content on the fabric in the dye composition is administered urea (up to 7 g/l) or xilian (5 g/l), but the complete removal of formaldehyde with tissue does not occur.

2. The compositions contain a large amount of a binder for fixing the pigment particles, as a result, on the surface of textile Mat is Rial to form a continuous film, that increases the stiffness of the fabric and it loses its natural properties. Reduction of the amount of the binder leads to the decrease of the strength parameters.

3. Normal pigment/binder in the dyeing process has a tendency to form films on the surface of the rollers as in management and in the heat chamber. Often this tape can be removed only mechanically. This serious drawback is sometimes the main reason for the textile enterprises to use pigment dyeing.

The closest analogue of the proposed technical solutions adopted for the prototype, is a composition for pigment dyeing of cellulose-containing materials, As the USSR №1765269 A1 (Gromov V.F., Fedorova NS Composition for pigment dyeing of cellulose-containing materials. - Publ. 30.09.92. Bull. No. 36. P.12). In this composition as a film-forming drug use latex (2.5 to 5.0 wt.%) copolymer of vinylidenechloride with butadiene in a weight ratio of monomers of 70:30 (DHB - 70) or a latex of a copolymer of vinylidenechloride with vinyl chloride 65:35 (vhvd - 60) or 80:20 (vhvd - 80), respectively, or a mixture of latexes with a ratio of 1:1 (2.5 to 5.0 wt.%); polyethylene emulsion (2.0 to 2.5 wt.%). Also the best results are obtained when using as antimigrant of the drug on the basis of manutex RS-alginate n is sodium or a mixture of starch with solvitose in the ratio of 1:1. The composition contains, wt%:

organic pigment0.1 to 0.3,
the foaming agent2,0-5,0,
- sethorizontal (polyethylene emulsion)2.0 to 2.5,
- antimigrant (manutex RS)0,050-0.075,the
- lubricant
- Prevotella WOF 100 -
surfactant(0,06-0,08),
- waterup to 100.

However, the composition has the following disadvantages:

1. The low strength of the colors in the middle and dark tones;

2. Proveta dyeing materials, since the composition has low resistance, which leads to the formation of coagulum buildup on the surface of the impregnating rolls;

3. The loss of strength of the colored material;

4. Low environmental safety of the composition due to the presence of toxic chlorine-containing latexes.

The invention

Inventive task was in search of a composition for dyeing pigment and textile materials, including pigment, at least one copolymer as plenkoobrazovatelja, antimigrant and water, which would increase the strength of the colors in the middle and dark tones, roveto dyeing, to reduce the loss of strength of the colored material and to improve environmental safety.

The problem is solved by a composition for dyeing pigments textile materials, comprising a pigment, at least one copolymer as plenkoobrazovatelja, antimigrant and water, which as a film-forming agent contains the drug, which is a styrene-vinyl acetate-acrylic copolymer obtained by emulsion polymerization, and as antimigrant - drug, which is a copolymer of (meth)acrylic monomers, obtained by the method of emulsion polymerization, with the following content of components, g/kg:

- pigment-3-80
the drug, which is a styrene-vinyl acetate
acrylic copolymer obtained by the method of emulsion
polymerization-14-120
the drug, which is Wallpapers
the copolymer of (meth) acrylic
monomers obtained by the method
emulsion polymerization-2-10
- waterup to 1000.

The invention allows to:

1. To increase the strength of the colors in the middle and dark tones,

2. To obtain uniform dyeing of the material

3. The strength of the treated material even increased by 1.5%,

4. To make the composition is environmentally friendly because it contains no toxic components. Moreover, the proposed structure provides the following advantages:

- processed material becomes high resistance of the obtained dyed to wet treatments, including domestic washings,

components of the composition are domestic drugs, which allows enterprises to reduce time and reduce financial costs associated with the delivery of raw materials and the search for suitable products;

- composition cheaper due to the smaller number of components used, as well as their lower cost.

Information verifying the playback inventions

For the implementation of the invention is sportsouth the following substances:

As pigments can be applied pigments traditionally used in pigment dyeing, for example, in the form of a water soluble paste thin-dispersed organic pigment content of the basic dye in the paste from 35 to 45% and a particle size of from 0.5 to 20 microns.

The drug, which is a styrene-vinyl acetate-acrylic copolymer obtained by the method of emulsion polymerization, available under the trade name "Laross-33" in accordance with THE 2241-002-55085288-2005.

The drug, which is a copolymer of (meth) acrylic monomers, obtained by the method of emulsion polymerization, available under the trade name "Gramos-402 in accordance with THE 2241-005-55856863-2001.

Water technical

The composition may be prepared as follows: into a container equipped with a stirrer, pour 1/3 of the required prescription of water, then with stirring enter drug Larus-33. Then gradually introduce the drug Gramos-402 and the remainder water. Stirring is carried out until a homogeneous viscous composition. On the basis of the obtained compositions are preparing a composition for dyeing by introducing a pigment.

Composition for dyeing can be used for coloring textile materials made of natural and synthetic fibres and their blends. The dyeing of the claimed composition is performed in a traditional is Noah technologies. Pigment dyeing is carried out with the continuous technology, which includes the impregnation, drying and heat setting. Fabric plus dyeing composition. After adding the fabric is dried at a temperature of 70-80°C and subjected to heat-setting at a temperature of 130-140°C for 3-4 minutes (Metricise "Chemical technology of textile materials", a textbook for high schools in 3 volumes (volume 2). M., "Light industry", 1975).

Qualitative indicators of dyed fabrics using prototype and the proposed structure was equally determined as follows:

- resistant paints for washes - according to GOST 9733.4-83;

- resistant colors to friction - according to GOST 9733.27-83;

- loss of strength of the dyed material was tried for breaking load, determined according to GOST 6309-80;

- about the intensity of color of the samples was judged by the reflection coefficient is determined on the spectrophotometer SPEKOL-11", function Gurevich-Kubelka-Munch was calculated in accordance with GOST 18054-72.

To obtain the correct comparative data as a prototype used the following composition example No. 6 of the table, g/l:

- pigment blue phtalocyanines TA5
- latex DWHB-7025
is the drug previal WOF8
- polyethylene emulsion25
- drug manutex RS7,5

Qualitative indicators of the colored material in the table. Table data clearly confirm the advantages of the claimed invention.

Composition for dyeing pigments textile materials, comprising a pigment, at least one copolymer as a film-forming agent, antimigrant and water, characterized in that it as a film-forming agent contains the drug, which is a styrene-vinyl acetate-acrylic copolymer obtained by emulsion polymerization, and as antimigrant - drug, which is a copolymer of (meth)acrylic monomers, obtained by the method of emulsion polymerization, with the following content of components, g/kg:

pigment3-80
the drug, which is a
styrene-vinyl acetate-acrylic copolymer,
received methodology the
emulsion polymerization14-120
the drug, which is a
the copolymer of (meth)acrylic monomers,
obtained by the method of emulsion polymerization2-10
waterup to 1000



 

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