Combined method of flax fiber dyeing and preparation for spinning

FIELD: textile, paper.

SUBSTANCE: invention concerns methods of flax fiber dyeing and preparation for spinning and can be applied in textile industry. Combined method of dyeing and preparation for spinning involves deacidification, processing by digester dye solution for 90-95 minutes at 40-50°C, the solution including vat colour, sodium bicarbonate, sulfonol NP-3 and anhydrous synthanol, polyenzyme preparation with enzyme activity indicators, units per ml of solution: endopolygalacturonase - 20-40; pectinesterase - 2.5 - 8.0; protease - 0.2-0.4; exopolygalacturonase - 0.6-1.5; exogalactosidase - 0.3-0.5; exoxylosidase - 0.3-0.8; exoglucanase - 0.4-1.0. Further the mass is heated to the boiling point, matured for 30-60 minutes, flushed by cold water. Oxidising processing is performed for 15-25 minutes at 20-25°C in stabilised peroxide solution including 0.3-0.4 g/l of hydro peroxide (100%), 1-2 g/l of laundry soap, and alkaline agents to comprise total alkalinity of 5.5-6.0 g/l rated per caustic soda, with further heating for 20-50 minutes to 95-100°C and maturing for 20-30 minutes, followed by double flush with detergent first and with water next, and further deacidification at 45-50°C for 15-20 minutes and flushing.

EFFECT: reduced irregularity of geometrical parametres and durability of flax semiproducts; improved colorability and colour evenness of textile semiproducts; more environment-friendly process and improved labour health.

1 tbl, 3 ex

 

Introduction

The invention relates to the textile industry, namely the technology of preparation for spinning and dyeing of flax fiber.

The level of technology

Among the wide range of flax-containing textile materials special place is occupied by the product of the dyed fiber with a variety of effects of color registration method of weaving or knitting pattern. Traditionally, the production cycle for the chemical treatment of fibrous material to obtain this product provides separate conducting processes of preparing fiber for spinning, yarn and dyeing.

In particular, when using technical (long) flax fiber the colouring is exposed to flax yarn formed by the method of wet spinning of boiled Rove to get dark tones of color or bleached Rove to paint in bright colors. At the first stage of training rovings for spinning by multi-stage and long-term impacts on flax dilute solutions of acids, alkalis and oxidizers for efficient removal of polymer satellites cellulose. Grey fibre is obtained by the method of alkaline cooking [Friedland GI Finish linen fabrics / M: Light and food. prom-St. 1982. - P.63-64]. To obtain bleached yarns roving ennoble with the special two-stage alkaline peroxide treatment, including alkaline cooking and peroxide bleaching, or one-step oxidation of cooking with high concentration of alkaline agents and peroxide [Friedland GI Finish linen fabrics / M: Light and food. prom-St. 1982. -

S-70]. After the formation of the prepared rovings in spinning yarn it is dried, is rewound on the reel and subjected to staining.

Among the major classes of dyes for coloring the flax currently, the most widely used sulfur and distillation. The first class is mainly used to obtain dyed fabrics. A second class due to the high stability of the oxidized form of the pigments to the action of chemical reagents preferred for the production of multicolored paintings exposed in finishing the production of additional operations blanching. Dyeing kovovymi dyes carried out using three main methods: 1) alkali-reduction, i.e. the dyeing alkaline solution of recovered dye; 2) suspension; 3) leucocelaenus [Yakimchuk, R.P., Mishchenko A., Bulusheva N.E. Application of VAT dyes (physico-chemical basis). - M.: Legprombytizdat, 1985. - S-157].

The advantages of separate trials preparation and coloring is the fact that any method of dyeing nianogo fiber, prepared for the different modes, you can obtain a wide range of colors.

The disadvantages of these methods are their duration and intensity, large energy consumption, high consumption of chemical materials. The resulting yarn is characterized by a high nerovnoi as indicators of the strength and deformation properties of the yarn and color characteristics. The additional impact of alkali recovery solutions at dyeing yarn after training Rove leads to reduced physical and mechanical properties of the yarn in comparison with unpainted, which increases breakage in weaving.

Well-known options for the preparation and dyeing of flax fibres to spinning.

In particular, the two-stage method of preparation and dyeing kovovymi dyes flax rovings provides operations oxidative cooking, washing twice with water, dyeing bleached Rove kubovy dye in the presence of hydrosulfite, modules and oxidation dye peroxide solution, twice washing with detergent and hot water, acidification with acetic acid and a final rinse with cold water [Friedland GI Finish linen fabrics / M: Light and food. prom-St. 1982. - S-151]. Then painted rovings is directed to a wet spinning method at a spinning machine.

Sravnenie with the dyeing of fibers in the yarn, this method allows to exclude the operation of acidification and washing when preparing Rove, the rewinding of the yarn on the bobbin before staining, as well as to reduce the consumption of alkali by 20-25% and peroxide 10-15% at bleaching. However, the resulting yarn has a high irregularity of geometric and strength characteristics and significant nerovnoi color due to incomplete destruction of pectin adhesive base encrusting residues parenchymal tissue on the surface of bast bundles with a significant decrease of the mass of fibers in the preparation of rovings, reaching a maximum level of 20%.

Separate methods of preparation for spinning and subsequent dyeing is also known in the processing of short flax fiber to get painted hlopkopribor fiber - cottonin [SU 958550 And, publ. 15.02.1982; EN 2073753 C1, publ. 20.02.1997; EN 2132422 C1, publ. 27.06.1999; EN 2175361 C1, publ. 27.10.2001; DE 2012171 B2, publ. 21.08.1975, GB 1509450 And, publ. 14.05.1978]. Colonizatio carried out either by mechanical razvlechenija raw materials, or a combination of mechanical razvlechenija and chemical destruction of the adhesive under the action of alkaline agents and oxidizers to reduce the thickness (linear density) of flax complexes, which allows to process cottonin in blends with cotton, wool and stapulionis chemical fibers by dry spinning. To obtain the color blended yarn use pre-colored "tone" fibrous the components. To this end, the dyeing of linen cottonin carried out in the mass kovovymi dyes using sulfur-containing or nitrogen-containing reducing agents.

The disadvantages of these methods are the multi-stage basic operations, including two pulping and bleaching, the long duration of 3-4 hours, the use of toxic and corrosive chemicals, such as chlorine bleach, peracetic acid, mineral acid, which affects the sustainability of process and sanitary working conditions.

To achieve the greening of processes of preparation of flax fiber materials allows replacement of chemical treatments on enzymatic means, received in the English-language literature name bioscouring "bootware" ['ossola M., Galante Y.M. Scouring of flax rove with the aid of enzymes / Enzyme and Microbial Technology, 2004, vol.34. - P.177-186].

In particular, it is known the use of the compositions of enzyme preparations Pentamaran PH and Lipolysis G3x on stage enzyme treatment to break down impurities mechanically prepared short flax fiber followed by peroxide bleaching and acidification with a solution of sulfuric acid, intermediate and final leaching [EN 2157434 C1, publ. 10.10.2000].

The disadvantages of this method include excessive fragmentation of fibrous material and a high content of fibers down g uppy - 18-26%, acceptable to receive wool, but is not able to process the fiber into yarn.

The known method of enzyme-peroxide preparation for spinning long flax fiber after operations of the mechanical preparation of scratching and Rove formation using domestic enzyme preparation Pectofoetidin PH (TU 64-13-04-87) [Kundi S.A. Development of energy-saving environmentally friendly technologies training flax materials based bioprocesses // Diss. Kida. technology. Sciences. Ivanovo, 1999. - P.124-152]. This drug contains as a main component pectinesterase the enzyme pectinase (andprecautions) with the level of activity of 1500 units/g, pectinesterase 60-80 units/g, endoglucanase 19 units/g and an acidic protease 3-10 units/g, as well as in trace quantities ectoparasitosis and xylanase. The method includes the following stages:

1 - enzyme treatment at 37-50°C and a pH value of 3.5-7.5 V 20-60 min with a solution containing 3-5 g/l of the drug Pectofoetidin PH that provides the level of enzyme activity, units/ml:

tr>
andprecautions4,5-7,5
pectinesterase0,18-0,4
the endoglucanases0,06-0,1
protease0,01-0,05

2 - rinse with hot water 86°C for 5 min;

3 - the oxidative boiling solution containing hydrogen peroxide (100%) 1,49 g/l, metasilicate 6.2 g/l and alkaline agents, sodium tripolyphosphate, 0.3 g/l soda ash to the total alkalinity of 7.6 g/l (in terms of caustic soda), with heating to 98°C and the total duration of 105 minutes;

4 - rinse with a solution of sodium tripolyphosphate 0.4 g/l at 80°C for 20 min and then twice with hot water at 70°C and 65°C for 10 min;

5 - antimicrobial treatment with acetic acid 0.9 g/l at 55°C for 15 minutes Prepared rovings goes on spinning machines.

However, this method is focused on getting bleached Rove. Staining of the fibers is carried out in the yarn that leads to the marked increase in energy usage separately implemented processes and loss of mechanical strength of the yarn after dyeing. In addition, when preparing for a specified way fiber from domestic raw linseed low degree of removal of pectin substances, not more than 40-45%, and great destruction hemicellulosic connections (up to 55%), resulting in a number of technological shortcomings. Uneven crushing complex fibers during wet spinning is manifested in the high values of the coefficients varies and linear density and the breaking load, in low yarn strength and the presence of a large number of yarn defects in the form of thickening and thinning, uneven coverage which deteriorates the appearance of the formed woven.

The closest technical solution is the combined method of preparation for spinning (colonizatio) severe short flax fiber, held preliminary mechanical razvlechenie, and its dyeing kovovymi dyes [EN 2190052, publ. 27.09.2002]. The method involves the following stages:

1) processing of fibers within 100-120 min at a temperature of 100°C boiling dye solution containing, g/l: sodium hydroxide - 5-20; VAT dye - 0,3-4,0; restorer - 5-15; integrated - 0,1-2,0; wetting - 0,5-1,0; dispersant NF - 0.5 to 1.0.

As a reducing agent is used alone or in various combinations with each other hydrosulfite, rongalit and nitrogen-containing reducing agent, such as triethanolamine or hydrazine hydrate. As complexone use Trilon B or derivatives ethylidene-diphosphonic acid;

2) rinse with cold water;

3) oxidation of the dye simultaneously with the acidification of the fiber for 20-30 min at 25-40°C in a solution containing, g/l: hydrogen peroxide (100%) - 0,5-3,0; acetic acid(32%) - 2,0-3,0;

4) water rinse.

In comparison with sulphur dyeing localdatetime and hygienic working conditions and environmentally friendly technologies, improving the quality of dyeing fiber and manufacturability of its processing in the processes of spinning production.

However, this method has the following disadvantages:

- high non-uniformity of the geometrical and mechanical properties katalizirovannogo fiber. Thus, the values of the coefficients of variation in linear density is 28.5-29.2 per cent, on the breaking load of 9.8 and 10.3%. This deficiency is caused by low degree of pectin degradation impurities of not more than 55-60%, and the presence of fibrous material unsplit of incrusted residual parenchymal tissue surrounding bast bundles in the stem of the plant. Cement group of elementary fibers on the surface of bast beam, incrusta prevent uniform crushing complexes and achieving the required level of elementarization [Kashayp R., et al. // Biotechnology Letters, 2001, V.23 Supported. - P.1297-1301];

- low strength katalizirovannogo fiber. Thus, specific breaking load is reduced to 16,0 CN/Tex. The degree of polymerization of cottonin falls to 5591-5940 against 7610 for severe fibers, indicating that depolymerization of the main fibre-forming polymer of cellulose in the oxidative its degradation in alkaline medium under the action of molecular oxygen absorption from the air intensified in the presence used in the data the way triethanolamine and wetting of sulfated-31 and phenoxy 9/10 BV;

low nakruchivaet fiber, which is caused, firstly, by increasing the crystallinity of elementary flax fibers due to excessive removal of hemicelluloses, reaching 80-85%, and destruction limnogeology complex binders between microfibrils in the cell wall of elementary fibers, and secondly, the slow-wave effect used in the composition of the dye-cooking solution of dispersant NF on the kinetics of recovery of VAT dyes and reducing the degree of fixation;

- uneven coloring of cottonin. So, the scale of variation of the indicator values for different areas of the sample reaches 4.2-7.8%, which is due to the presence in the fiber malorazmernyj linen complexes with a smaller effective volume for penetration of the dye and not the remote surface incrusted preventing dyeing, as well as a possible course of destruction of VAT dyes in solutions of rongalite;

- lack of ecological purity of process in connection with the discharge of products with different degree of oxidation of the sulfur atoms at the use of sulfur-containing reducing agents, as well as formaldehyde in the case of rongalite.

In addition, this method is not applicable for combined training and dyeing long flax fiber, because of the use accounted for the e boiling and dyeing of caustic soda solution with a high concentration of - to 20 g/l, and elevated concentrations of peroxide in oxidizing bath of up to 3 g/l (in terms of 100%N2About2), is an intensive elementarization fibers in the roving, leading to unacceptable losses of raw materials with down waste in the process of wet spinning.

Thus, unknown green combined method of preparation for spinning and dyeing of flax fibre, which allows to obtain semi-finished products with a high level of strength and uniformity of geometric and strength characteristics, high narasimhamurthy kovovymi dyes and improved rownameu get colors that applies as for coloured painted cottonin of short flax fiber, processed by dry spinning in a mixture of natural and chemical fibers, and to prepare long (technical) fibers to form a yarn by the method of wet spinning.

The invention

Inventive task consisted in finding eco-friendly combined method of preparation for spinning and dyeing flax fibers applicable for processing long and short flax fiber, which would increase both the uniformity of the geometrical and mechanical properties of the obtained semi-finished products, and mechanical strength, and nakruchivaet fiber kovovymi KRA what italiani, and roveto get colors.

The problem is solved by the fact that in the combined method of preparation for spinning and dyeing of flax fiber, including the processing of boiling dye solution comprising an alkaline agent, VAT pigment, dispersant and wetting, rinsing with cold water, oxidation treatment with hydrogen peroxide solution, acidification and washing before handling boiling dye solution, the fiber is subjected to resislance, washing is carried out after the oxidation treatment twice, first with detergent, then with water, followed by acidification at 45-50°C for 15-20 min, and in the boiling dye solution further impose a multienzyme preparation in an amount to provide the following activity values of the constituent enzyme units/ml solution:

- andprecautions - 20-40;

- pectinesterase - 2,5-8,0;

- protease - 0,2-0,4;

- ectoparasitosis - 0,6-1,5;

- ectoparasitoids - 0,3-0,5;

- Associazione - 0,3-0,8;

ekzoplaneta - 0,4-1,0,

as the alkaline agent using sodium bicarbonate, as the wetting - sintana BV, as dispersant - sulfonic acid NP-3, the processing of boiling dye solution is carried out at a temperature of 40-50°C for 90-95 min, followed by heating to boiling and exposure within 30-60 min, ocil the consistent treatment is carried out stable peroxide solution, including hydrogen peroxide (100%) of 0.3-0.4 g/l soap - 1-2 g/l and alkaline agents to the total alkalinity of 5.5-6.0 g/l (in terms of sodium hydroxide) at a temperature of 20-25°C for 15-25 min, followed by heating for 20 to 50 min to 95-100°C and aged 20-30 minutes

The invention provides the following advantages:

to reduce the unevenness of the geometrical and mechanical properties of flax semis at the expense of increasing the degree of removal of pectin substances up to 80-85%. Get color cottonin characterized by the values of coefficients of variation in linear density of 8.8 to 9.6% versus 28.5-29.2% of that of the prototype, the breaking load - 7,8-8,4% compared to 9.8-10.3% in the prototype. When preparing and dyeing Rove technical fibers, the resulting yarn has the coefficients of variation in linear density and the breaking load, respectively 2,2-2,6% and 10.2%, which meets the requirements of GOST 10078-85 for grade "1 vyskoleny";

- to enhance the strength properties of the textile semi-finished products by preventing depolymerization of cellulose. The degree of polymerization of cellulose colored cottonin or dyed flax rovings is 7299-7416 against 5591-5940 for fiber produced by the method prototype. Specific breaking load color cottonin increased to 25.8-27,2 CN/Tex against 16,0-19,7 CN/Tex of the prototype. Specific breaking load the yarn wet spun from a technical (long) flax is 24,6 CN/Tex, that meets the requirements of GOST 10078-85 for grade "1 vyskoleny";

- increase nakruchivaet fiber in terms of the lightness of the color of 5.0 to 9.5% and the content of the colorant 1.2-5.8 g/kg fiber by reducing the degradation amortiziruyushchih fiber hemicellulose to 35-72% vs. 80-85% of the prototype;

to improve the uniformity of dyeing of textile semi-finished products: peak-to-peak variation of the metric values of different parts of the fibrous material does not exceed 2-2,5% vs. 4.2-7.8% on the prototype;

- to improve the sustainability of process and sanitary-hygienic conditions by replacing the known chemical materials, causing anthropogenic pollution, bioassay and inactivating processing fibrous material multienzyme preparation, as well as by increasing the degree of efficiency of the use of the coloring matter.

Information confirming the possibility of carrying out the invention

The claimed method can be used to handle short flax fiber GOST 9394-76 after preliminary mechanical processing operations, such as cleaning in blowroom machines and razvlechenija on carding machines, as well as technical (long) fiber OST R 17-05-012-94 after preliminary mechanical operations of scratching and formation of Rove.

For the implementation of the JV is soba using the following reagents.

As multienzyme preparation can be used products culturing microbiological producers, providing simultaneous biosynthesis of complex technologically necessary enzymes:

- andprecautions (has a different common name pectinase, and installed the current International classification of enzymes 1961, classification number EC 3.2.1.15 and scientific name poly[1,4-α-D-galacturonic]glucanohydrolase);

- pectinesterase (EC 3.1.1.11, pectin-pectolyase);

protease two types of serine proteases (Podolsk CYP 3.4.21) and/or metalloproteinases (Podolsk CYP 3.4.24);

- ectoparasitosis (EC 3.2.1.67 poly[1,4-α-D-galacturonic]galactosialidosis) and/or ectoparasitoids (KF 3.2.1.82 poly[1,4-α-D-galactosidase]dialectological);

- ectoparasitoids (EC 3.2.1.23, β-D-galactoside-galactohydrolase);

- associatedthe (EC 3.2.1.37, 1,4-β-D-xylan-kilolitres and/or KF 3.2.1.72, 1,3-β-xylan-kilolitres);

ekzoplaneta (EC 3.2.1.74, Exo-1,4-β-glucosidase).

Multienzyme preparation can be obtained, for example, by mixing the products of the cultivation of non-pathogenic bacterial strains from the Museum Gosniigenetika, registered under the non-Russian collection of industrial microorganisms (VKPM) is. circulans VKPM B-1741, B. subtilis VKPM B-1093, B. mesentericus VKPM B-1559 or In-2466, Erw. carotovora VKPM B-1358. You can use composition of the products of the cultivation of mushroom producers of Penicillium lanosum F-387, Asp. awamori 22 and Asp. flavus VKPM F-591.

In accordance with the recommendations of the Commission on enzymes of the International Union of biochemistry quantitative assessment of the content of a specific enzyme in the product or solution is expressed not in the conventional gravimetric or volumetric units, and units of activity according to the results of the reaction that it catalyzes, i.e. the number of the resulting reaction product or the reduction of the original substrate. Under the unit of activity of any enzyme refers to this quantity, which catalyzes the transformation of 1 micromole of a certain kind of substance in 1 min under the given regulated the conditions of the test experiment.

The ratio of certain types of enzymes are regulated by selection of the composition of culture media, conditions of cultivation of microorganisms and biosynthesis enzymes, and methods of their subsequent excretion. Multienzyme preparation may be used in powder form after extraction and freeze drying, in the form of a stable liquid products or fresh culture filtrates of liquids. The method can be implemented in any ratio of components preferment the th of the drug within the specified ranges of activities.

As use dye VAT dyes labeled "D". You can also use other final forms of VAT dyes with advanced transfer them in a highly dispersed state by the recovery in the mother solution, with subsequent oxidation in air.

As the alkaline agent boiling dye solution using sodium bicarbonate NaHCO3(GOST 2156-76); widely used in textile industry for coloring cellulosic materials active dyes.

As the dispersant in the boiling dye solution using a sulfonic acid NP-3 - anion active surfactants from the group of alkylbenzenesulfonates with the General formula CnH2n+1C6H4SO3Na, where n=4...6 (TU 84-509-74).

As wetting agent in boiling dye solution using sintana BV - nonionic surfactants, butylacetyl of monoacylglycerols CnH2n+1O(C2H4O)mCH(CN)3-OS4H9n=12...14; m=10 (TU 6-36-5744684-85-90).

As the oxidant in the oxidation treatment using hydrogen peroxide, the dosage of which is given its concentration in commercial discharge forms in terms of active oxygen. To stabilize the peroxide is preferably used Basilicata stabilizers, such as MgSO4Il the MgCl 2, polycarboxylic or reinkarnasi acids.

As the alkaline agent in the oxidation processing along with soap (65 or 72%, GOST 30266-95), which gives the effect of "modules" (crystallization oxidized pigment), you can use traditionally used connection tripolyphosphate, bicarbonate and soda ash, the concentration of which is determined based on the content of the other agents to the established value of the total alkalinity of the solution in terms of caustic soda.

As detergent when washing the fibers after oxidation processing can be used tripolyphosphate and/or surfactants wetting and emulsifying action, for example neonol 9/12, EM-3P, HT-washing.

As agent for acidification and receiving antimicrobial effects processing, you can use organic acids, mainly acetic, or oxalic acid.

As additional components as needed for boiling dye solution may contain complex, equalizer, and non.

- For the preparation of solutions can be used distilled, technical or softened water.

The method can be implemented on standard equipment for the preparation and dyeing of fibers and flax rovings for periodic technology, in particular, in the apparatus autoclave type ABOUT 500 to L, AAA-U-6 or laboratory equipment brand AL 210/1.

The way to implement a consistent carrying out the following operations:

- Raschislova. The purpose of the operation is to remove the acidic degradation products of plant tissues flax stem in terms of flax and to prevent loss of enzyme activity during the impregnation severe fiber without introducing into the boiling dye solution special superyoshi additives. Depending on the degree of takisawant raw materials and the level of acid-base properties of aqueous extracts of raschislova can be carried out by washing the technical or softened water, or impregnation with a solution of baking soda required concentration. Treatment is carried out at a temperature of 20-50°C., preferentially at 40-45°C for 10-15 minutes

Treatment for boiling dye solution containing:

- multienzyme preparation in an amount to provide the activity values of the constituent enzyme units/ml solution:

- andprecautions20-40;
- pectinesterase2,5-8,0;
- protease0,2-0,4;
the ind is polygalacturonase 0.6 to 1.5;
- ectoparasitoids0,3-0,5;
- Associazione0,3-0,8;
ekzoplaneta0,4-1,0;

- kubovy dye 0.5-2.0 g/l (depending on tone);

- sodium bicarbonate 25-30 g/l;

- centralab 0.5-1 g/l;

- sulfonic acid NP-3 3-3,5 g/l,

and optionally additional components, such as integrated, equalizer, and non, the treatment is carried out with the change of the circulation of fluid when the module baths, preferably 1:10, a temperature of 40-50°C for 90-95 min, followed by heating to boiling and maintain "nakupu" within 30-60 min

- Rinsing with cold water for 10 minutes

- Oxidation treatment solution comprising hydrogen peroxide (100%) of 0.3-0.4 g/l; a peroxide stabilizer, such as sulfate or magnesium chloride, or polycarboxylic reincarnate acid; soap - 1-2 g/l and alkaline agents, such as tripolyphosphate, sodium bicarbonate, soda ash to the total alkalinity of 5.5-6.0 g/l (in terms of sodium hydroxide)at a temperature of 20-25°C for 15-25 min, followed by heating for 20 to 50 min to 95-100°C and aged 20-30 minutes Total duration of the process 55-105 minutes

- DVWK atna flushing. In the first bath processing flax is carried out at a temperature of 70°C for 10 min with a solution of detergent - tripolyphosphate or predominantly nonionic surfactant emulsifying action, for example neonol 9/12, EM-3P, HT-washing in manufacturers ' recommended amounts. Next, the fibrous material is washed with hot water at 70°C for 10 minutes

- Acidification of the organic acid, for example acetic 0.75 to 1 g/l, at 45-50°C for 15-20 minutes

Evaluation of the effectiveness of the proposed combined method of preparation and dyeing of flax fiber and the prototype method performed equally on indicators of chemical and physico-mechanical properties and quality of the colors that form a semi-product, which is obtained in dried form, i.e. painted cottonin in the processing of short flax fibre and yarn formed by the method of wet spinning of prepared and painted technical (long) flax. The evaluation of the properties of the yarn obtained with attachment prepared and painted katalizirovannogo flax, was not carried out, because the semi-finished product is produced only in a blend with cotton, wool and/or man-made fibers, which does not allow to differentiate the contribution of Flaxseed components. The characteristics of the yarn of the technical (long) flax evaluated according to the criteria of the op is adelene its grade according to GOST 10078-85.

Mapping conducted on the following parameters:

1 - the degree of removal of pectic substances (Δ, %) [Krichevsky G., Nikitov V.A. theory and practice of preparation of textile materials of cellulose fibers. - M.: 1989. - 207 S.];

2 - the degree of removal hemicellulosic compounds (Δ, %) [Krichevsky G., Nikitov V.A. theory and practice of preparation of textile materials of cellulose fibers. - M.: 1989. - 207 S.];

3 - degree of polymerization of the cellulose of the linen fiber (NP) was determined by x-ray analysis using a diffractometer DRON-3;

4 - the linear density of cottonin / yarn long flax fiber (T, Tex) [OST R 17-05-013-A4, GOST 6611.1-73];

5 is the coefficient of variation in linear density (CT, %) [GOST 11.004-74];

6 - specific breaking load of cottonin / yarn long flax fiber (Py, CN/Tex) [OST R 17-05-013-A4, GOST 6611.1-73];

7 - the coefficient of variation for breaking load (Withp, %) [GOST 11.004-74];

8 - the lightness of the color (L, %) - increasing the intensity of the color corresponds to the decrease of the luminosity. For evaluation used sitosterolemia complex "Colorist" software "Colorist", version 3.3.1997;

9 - magnitude variation measure of the lightness of the color (R=Lmax-Lmin, %) [Laboratory science garment production: the Scholar is. manual for schools / Bouzov and others - M.: Legprombytizdat, 1991. - P.42];

10 - the content of the dye in the fiber (CKR, g/kg fiber) - was determined by the method of colorimetrically sulfate sols [Laboratory of chemical technology of fibrous materials. - M.: Gisleham, 1963. - S];

11 - grade yarn [GOST 10078-85].

The invention is illustrated by the following examples.

Example 1

Preparation and dyeing were subjected to short flax fiber # 2 after preliminary mechanical cleaning operations and razvlechenija to a linear density of 1.5 Tex. Processing of flax fiber was carried out on the apparatus autoclave type ABOUT-500-L by the following technological mode:

1 - raschislova softened water at 45°C for 10 min;

2 - processing of boiling dye solution containing:

- multienzyme preparation obtained by mixing the products of cultivation of bacterial strains Century circulans VKPM B-6747, Erw. carotovora VKPM B-2970, B. mesentericus VKPM B-1559 and B. subtilis B-1093, with indicators of enzyme activity, units/ml:

- andprecautions (pectinase)40;
- pectinesterase6,0;
- protease0,3;
- ectoparasitosis1,5;
- ectoparasitoids0,4;
- Associazione0,8;
ekzoplaneta1,0;

- dye VAT bright purple KD 2.0 g/l,

- sodium bicarbonate 30 g/l,

- sintana BV 0.5 g/l,

- sulfonic acid NP-3 3 g/l,

with the addition of complexone Trilon B 1 g/l and balancer sintimid 10 1 g/l; the treatment is carried out with the change of fluid circulation, the module baths, 1:10, when the temperature of the solution at 50°C for 95 minutes with heating to boiling and exposure "on the stack" within 60 min;

3 - wash with cold water for 10 min;

4 - oxidation processing is conducted with a solution containing hydrogen peroxide 0.4 g/l (in terms of active oxygen, peroxide stabilizer, such as magnesium sulfate or chloride 0.6 g/l soap 2 g/l, sodium tripolyphosphate, 0.5 g/l soda ash to the total alkalinity of 6.0 g/l (in terms of sodium hydroxide) at a temperature of 25°C for 20 min, followed by heating to 95°C for 40 min and aged for 20 min;

5 - wash with a solution of detergent HT-washing with a concentration of 1 g/l at 70°C for 10 min and then with hot water at 70°C for 10 min;

6 - to Slovenia acetic acid, 0.75 g/l at 50°C for 15 minutes

After cultivation, drying and got it dyed flax fiber is used for processing it in a mixture of natural and chemical fibers by dry spinning.

To compare the processing of short fibers was performed according to the method prototype [EN 2190052, publ. 27.09.2002] following the sequence of stages and conditions of their implementation.

The test results painted cottonin presented in the table.

Example 2

Preparation and dyeing were subjected to short flax fiber No. 2, previously subjected to mechanical cleaning and razvlecheniy to a linear density of 0.8 Tex. Processing flax was conducted on a laboratory equipment brand AL 210/1 at the following technological mode:

1 - raschislova solution of soda ash 0.2 g/l at 40°C 15 min;

2 - processing of boiling dye solution containing:

- multienzyme preparation obtained by mixing the products of cultivation of bacterial strains Century circulans VKPM B-1741, Erw. carotovora VKPM B-1358, B. mesentericus VKPM B-2466 and B. subtilis In-1093, with indicators of enzyme activity, units/ml:

- andprecautions (pectinase)30;
- pectinesterase8,0;
- protease 0,4;
- ectoparasitosis0,6;
- ectoparasitoids0,3;
- Associazione0,3;
ekzoplaneta0,4;

- dye VAT brown SKD 0.5 g/l,

- sodium bicarbonate 25 g/l,

- sintana BV 0.5 g/l,

- sulfonic acid NP-3 3 g/l,

the treatment is carried out with the change of fluid circulation, the module baths, 1:10, the solution temperature of 40°C for 95 min, then the solution is heated to boiling and kept "on the pile" for 30 min;

3 - wash with cold water for 10 min;

4 - oxidation processing is conducted with a solution containing hydrogen peroxide 0.4 g/l (in terms of active oxygen, peroxide stabilizer 0.6 g/l, such as magnesium sulfate or chloride, soap 2 g/l, sodium tripolyphosphate, 0.5 g/l soda ash to the total alkalinity of 6.0 g/l (in terms of sodium hydroxide) at a temperature of 25°C for 15 min, followed by heating to 100°C for 50 min and aged for 20 min;

5 - rinse the detergent solution EM LC with a concentration of 1 g/l at 70°C for 10 min and then with hot water at 70°C for 10 min;

6 - acidification with acetic acid 0.75 g/l of the ri 50°C for 15 minutes

After cultivation, drying and got it dyed flax fiber is used for processing it in a mixture of natural and chemical fibers by dry spinning.

To compare the processing of short fibers was performed according to the method prototype [EN 2190052, publ. 27.09.2002] following the sequence of stages and conditions of their implementation.

The test results painted cottonin presented in the table.

Example 3

The preparation was exposed to flax rovings medium soft No. 16 stancavage Vologda flax fibers to produce yarns with a nominal linear density of 56 Tex. Processing Rove was carried out on the apparatus autoclave type AAA-U-6 on the next technological mode:

1 - raschislova technical water at 40°C for 10 min;

2 - processing of boiling dye solution, including:

- multienzyme preparation, which is the composition of the products of the cultivation of mushroom producers of Penicillium lanosum F-387, Asp. awamori 22 and Asp. flavus VKPM F-591, with indicators of enzyme activity, units/ml:

- andprecautions (pectinase)20;
- pectinesterase2,5;
- protease0,2;
- ectoparasitosis1,1;
- ectoparasitoids0,5;
- Associazione0,5;
ekzoplaneta0,7;

- colour blue dark blue L 1.2 g/l,

- sodium bicarbonate 25 g/l,

- sintana BV 0.5 g/l,

- sulfonic acid NP-3 3.5 g/l,

with the addition of 1 g/l balancer sintimid 10; the treatment is carried out with the change of fluid circulation, the module baths, 1:10, the solution temperature of 45°C. the processing time of 90 min, followed by heating to boiling and exposure "on the stack" within 45 min;

3 - wash with cold water for 10 min;

4 - oxidation processing is conducted with a solution containing hydrogen peroxide 0.3 g/l (in terms of active oxygen, peroxide stabilizer Trilon B 1 g/l soap 1 g/l, sodium tripolyphosphate, 0.5 g/l soda ash to the total alkalinity of 5.5 g/l (in terms of sodium hydroxide) at a temperature of 20°C for 25 min, followed by heating to 100°C for 20 min and aged for 30 min;

5 - rinse the detergent solution neonol 9/12 with a concentration of 0.5 g/l at 70°C for 10 min and then with water at 70°C for 10 min;

6 - acidification with acetic acid 1 g/l at 45°C in accordance with their 20 minutes

After preparation and dyeing Rove spinning was carried out in the wet spinning machine PM-88-L.

The resulting yarn, corresponding to the on set of standardized indicators of the quality requirements of the grade "1 vyskoleny".

The test results rovings and yarns are presented in the table.

These tables show that the claimed method is applicable to a combined preparation for spinning and dyeing kovovymi dyes of various kinds libovolneho raw - kataliziruemogo short fibers and rovings technical (long) flax. The method provides simultaneous achievement of a number of technical results, reflects the comprehensive improvement of the main quality indicators of preparing fiber for spinning and dyeing characteristics of the obtained colors:

1 - when receiving a color cottonin by increasing 1.44-1.53 times the degree of removal of pectin substances, significantly reduced the unevenness of the geometrical and mechanical properties of fiber:

the coefficient of variation in linear density decreased 3.0-3.3 times;

the coefficient of variation for discontinuous load - 1.23 times.

When preparing and dyeing Rove technical fibers obtained yarn satisfies the criteria of uniformity according to GOST 10078-85 for grade "1 vyskoleny".

2 - increased strength t the VA textile semi-finished products and reduced degradation of cellulose:

the degree of polymerization of the cellulose of the linen fiber exceeds 1.23-1.32 times the metric values for fiber prepared by the method prototype, and is 96-97% of the level of severe fibers;

- specific breaking load color cottonin increased 1.4-1.6 times;

- strength yarn wet spun from a technical (long) flax meets the requirements of the grade "1 vyskoleny".

3 is an enlarged nakruchivaet fiber, which is a consequence of reducing degradation amortiziruyushchih fiber hemicellulose 1.2 times:

- the content of the dye on the fiber in comparison with the prototype increased 1.4-1.5 times;

- the value of the lightness of the color is reduced 1.23-1.27 times.

4 - improved the uniformity of dyeing textile semi - scale variation of the metric values of different parts of the fibrous material is reduced 2.1-3.1 times.

However, the method has a high environmental friendliness due to increasing the useful life of the coloring substances, as well as the replacement of chemical materials, which anthropogenic pollutants in the environment, bioassay and inactivating processing fibrous material multienzyme preparation.

The combined method of preparation for spinning and dyeing of flax fiber, comprising processing the at boiling dye solution, including alkaline agent, VAT pigment, dispersant and wetting, rinsing with cold water, oxidation treatment with hydrogen peroxide solution, acidification and leaching, characterized in that before processing the boiling dye solution, the fiber is subjected to resislance, washing is carried out after the oxidation treatment twice, first with detergent, then with water, followed by acidification at 45-50°C for 15-20 min, and in the boiling dye solution further impose a multienzyme preparation in an amount to provide the activity values of the constituent enzyme units/ml solution:

andprecautions20-40
pectinesterase2,5-8,0
protease0,2-0,4
ectoparasitosis0,6-1,5
ectoparasitoids0,3-0,5
associatedthe0,3-0,8
ekzoplaneta0,4-1,0

as the alkaline agent using sodium bicarbonate, as smace is of the motor - sintana BV, as dispersant - sulfonic acid NP-3, the treatment is carried out at a temperature of 40-50°C for 90-95 min, followed by heating to boiling and exposure within 30-60 min, the oxidation treatment is carried out stable peroxide solution comprising hydrogen peroxide (100%) of 0.3-0.4 g/l soap - 1-2 g/l and alkaline agents to the total alkalinity of 5.5-6.0 g/l (in terms of sodium hydroxide) at a temperature of 20-25°C for 15-25 min, followed by heating for 20 to 50 min to 95-100°C and aged 20-30 minutes



 

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