Method of metallization flat materials

FIELD: textiles, paper.

SUBSTANCE: method of metallisation woven materials lies in melting of metal wires with electric influence, as well as in spraying of microparticles of molten metal to the plane of the material moving orthogonally to the direction of the spraying with the given speed of feeding and protected with the medium of spray distribution from the damaging effect of high temperatures. The explosive melting of the wire substance is carried out through high-voltage electric influence between the ends of the non-open wire delivered discretely to the metalliser in aqueous medium, and a cloud of ionised particles of evaporated metal is formed, and metallisation is performed by energy cumulation of thermal explosion W and electromagnetic focusing of motion trajectories of the ionised particles to the target rate of metallisation, and the rate of feeding Fn of the process material is regulated in time with a spacing frequency nsp of electric influence, and the volume Vw of the exploded wire is changed, as well as the spraying propagation medium, the voltage Uco and the spacing frequency nsp of electric influence formed by a bit relaxation circuit Lc-Ct, and the metallisation indices are set and controlled during metallisation according to the value of the scattering coefficient Ks of electromagnetic radiation, characterised by the formula: where: Uco is a voltage of electric influence exploding the wire; εm"ш" is dielectric capacitance of the fabric material and metal particles, respectively; α is lateral dimensions of the particles; W is energy released under electric explosion of the wire, of the given volume Vw; Zac is acoustic impedance of the discharge circuit forming the spacing frequency nsp of electric influence; ρmwf,λvap is density, specific electrical conductivity, heat of fusion and heat of vaporisation of the wire material in a given environment; Lc is the circuit inductance; Ct is capacity of tank of capacitors; T=tspTs⇔VwKl emf is the number of explosions of the wire in processing of area of fabric with volume Vfab necessary to ensure the given index of metallisation with guaranteed by experimentally proved dependence of metal amount introduced into the fabric on the volume of the exploded wire Vw taking into account for adjustment for the loss coefficient Kl emf at electromagnetic focusing of motion trajectories of the ionized particles; Ts is the sampling period of time of feeding the section of plane of metallised surface; d is thickness of the fabric; λ is wavelength of the electromagnetic radiation in a vacuum; and the value of the metallisation index Kp is set and controlled using a physical phenomenon of scattering of electromagnetic waves in the infrared range, and the voltage of electric influence Uco exploding wire with length of 40 mm and a diameter of 0.6 to 1 mm is adjusted from 2 to 4 kV with values of capacity of tank of capacitors Ct of 150 to 200 microfarad and values of the discharge circuit inductance Lc of 30 to 40 mcH, ensuring minimum loss of metal from 30% to 40% with an electromagnetic focusing of motion trajectories of the ionised particles.

EFFECT: technology is feasible in any media, including, liquids, the cloths have shielding properties, and antibacterial, antiviral, catalytic activity.

1 cl, 6 tbl, 6 dwg

 

The invention relates to the technology of metallization natural and synthetic fabrics, and can also be used for metallization materials of felt, of thin leather, knitwear, plastic and other non-fire resistant materials exposed to the damaging effects of high temperatures.

Widely known various methods of metallization materials. Metallic fabric used in the creation of, mainly, shielding of electromagnetic radiation and fire-retardant coatings and to make the tissues antibacterial and antiviral activity, and leather goods metallizer to improve performance properties.

A known method of manufacturing a shielding electromagnetic radiation and fire resistant material "Nanotex" (EN 2338021, IPC D06 11/83, 2009). In this way metallization carried out by magnetron sputtering in a vacuum, creating on one side of the fabric or both sides of a thin surface film of metal on a loom made material for products of special purpose. When the increase screening rates in a big way fails to produce material on a loom, and the change of characteristics in the lower side results in unstable, easily shifting patterns of material and loss of shielding properties.

The known is a method of metallization of sanitary napkins (EN 2314834, IPC A61L 15/18,2008). By this method the metal is also applied to the surface wipes magnetron sputtering in a vacuum chamber. However, the metal is taken out of the cloth after the first wash. In addition, for the operation of the magnetron and to maintain the vacuum required large material and energy costs.

Known chemical method of copper metallization cellulosic fabrics to give them a fungicidal and bactericidal properties /RU 2398599, IPC 61L 15/18, 2009). According to this method, linen, cotton or hydrocellulose fabric first, bleach, and then impregnated with copper sulfate and a solution of hydrazine sulfate stir the reaction for reduction of micro - and nanoparticles of copper in the material structure in a strictly defined proportions. However, the organization of production of metallized this way tissue transfer technological cycles for other modes metallization invalid due to loss of quality of the source material, and because of the lack of traceability and adjustment of the chemical reactions, their minor disruption leads to loss of all original material loaded in the capacity of the gun. In addition, for the preparation of the necessary chemicals requires additional material and energy costs.

There are also known methods of metallization by introducing the structure westvleteren particles due to the activation of their thermal and kinetic energy. In the method-prototype (article Professor Gusev and others : "the Study of the properties of sheepskin with a metalized surface," Izv. Universities // Technology of light industry, No. 2, 2008, p.29-32) metallizing the leather is carried out by continuous electric arc melting substances two converging with the specified clearance of wires, the outer surface of the gun barrel type fixed sample of the leather, and in the center of the spinning gun continuously served with a specified gap, blown with compressed air orthogonal to the outer surface of the sample, the two ends of the wire, continuously acting on them arc voltage and synchronously changing the rotation speed of the gun, the feed speed of the tape, the pressure of compressed air, the gap between the wires, arc voltage, and other parameters, metallizer a dispersion containing droplets of molten metal, samples of leather with different density, structure and thickness of the coating, protecting them from the damaging effects of high temperatures generated by air circulation medium spray. Metallized this way the leather has more elasticity, better dimensional stability and water-repellent ability. However, this method is technically complex and not applicable for metallic the tion of natural and synthetic fabrics, materials felt, thin leather, knitwear, plastic and other non-fire resistant materials due to the damaging effects of high temperature continuous consumable wire.

The technical result, which directed the claimed invention is to simplify the technology of depositing metal in the structure of the designated materials, preserving their original performance properties due to the metallization in the aquatic environment and providing a set of screening indicators and hygienic properties through ongoing monitoring and management of the metallization process in terms of scattering of electromagnetic radiation processed material.

To achieve this result, the proposed method of metallization of a woven material, which consists in melting the metal wires of the stimulation, but also in the sputtering particles of molten metal in the plane of the material, moving orthogonal to the direction of the spray pattern with a given feed rate and secure environment for the distribution of the spray from the damaging effects of high temperatures, produce an explosive fusion of substances delays due to high-voltage electric stimulation between the ends narisokonai delays, discrete supplied to the gun in the aquatic environment, and the will is formed cloud of ionized particles of the evaporated metal, and metallization carried out due to the cumulative energy of thermal explosion W and electromagnetic focusing of trajectories of the ionized particles to a given metric metallization, and the feed rate Fpthe processed material shall govern in accordance with a repetition rate of nSLelectroconductive, and changes the volume VCRexploding wires, the distribution environment of the spray, the voltage Ucoand the repetition rate of nSLelectroconductive formed bit of relaxation circuit Lto-Cbresults metallization set and control in the process of metallization on the value of the dissipation factorpelectromagnetic radiation characterized by the formula:

where Uco- voltage electric stimulation, blowing up the wire;

εmW- dielectric permeability of the fabric material and the spherical metal particles, respectively; α is the transverse dimensions of the particles, W is the energy released when the electrical explosion of wires, a given volume VCR;

ZBwave resistance of discharge circuit that generates a pulse repetition rate of nSLelectroconductive; ρmχpPLCOIdensity, electrical conductivity, heat of fusion of teplota evaporation material delays in a given environment; Ltothe inductance of the path; Withb- capacity capacitor Bank; N=nSLTd⇔VCRTop EMFthe number of explosions delays in the processing of tissue volume VTCnecessary to ensure a given metric metallization guaranteed experimentally justified dependence of the amount of metal introduced into the fabric of the volume of the exploding wire VCRamended on loss factorp EMFwhen electromagnetic focusing of trajectories of the ionized particles; Tdthe period of sampling time of submission of the plot metallized fabric; d - thickness tissue; λ is the wavelength of electromagnetic radiation in a vacuum; the value metallization Kpset and controlled using physical phenomenon of scattering of electromagnetic waves in the infrared range, and the voltage of the electric stimulation Ucomaking a wire with a length of 40 mm, a diameter of 0.6 to 1 mm, adjust in the range of 2 to 4 kV with capacity values Withbcapacitor Bank from 150 to 200 PF and the inductance of the discharge circuit Ltofrom 30 to 40 µh, ensuring minimal metal loss from 30% to 40% when the electromagnetic focusing of trajectories of the ionized particles.

Introduction in the proposed method operationallevel of electrical explosion of wires in conjunction with the proposed action for its practical use allows to obtain new properties of the technological cycle of metallization and to solve tasks for account:

1) energy management activity of the metal particles, which are introduced in the material being processed;

2) extend the range of the dimension of the embedded particles from the micro - to nanometers due to the instantaneous evaporation of the metal and create managed paths of movement of ionized particles.

3) reduction of the Electromechanical configuration operations to two, namely: step-by-step feed of the wire after the implementation of thermal explosion and step-by-step presentation of the material in the zone of the spray particles, which is especially important when using digital software control of the technological cycle of metallization;

4) the ability to regulate the total mass of metal, carrying out the metallization process, the volume change of exploding wires, as well as the change of energy accumulation of the particles in the variations of the energy and the frequency of electroconductive;

5) opportunities to optimize the process of metallization of energy and loss of the source material through the use of electricity in the pulse mode and continuous monitoring of a metallization of the treated material;

6) to make electrodrive delay in any media, including liquids, which is especially important when the metallization of natural and synthetic fabrics for automatic regulation of th the first mode, do not burn the fabric;

7) high bactericidal process metallization due to intensive destruction of bacterial and viral flora under the action of ultrasound and ultraviolet radiation of the plasma electric discharge, which is especially important when creating a wound dressing and sanitary tissues.

These properties allow uniformly to metalize a variety of materials, mainly natural and synthetic fabrics and to use these fabrics for scattering of electromagnetic radiation and to impart antibacterial, antiviral and catalytic activity of the materials used in the manufacture of wound coverings, in the treatment of electrophoresis, as well as the manufacture of sanitary products, in particular, socks, stockings, handkerchiefs, insoles for shoes and other items, as proposed in the way the process sequence allows to obtain a technical result, which directed the claimed invention, and meets the criterion of significant differences from the prototype method.

The claimed method can be implemented on the basis of the results of experimental verification of the technical feasibility of the proposed operations cycle metallization and practical evaluation indices.

For the pilot is spitoni proposed method metallization was theoretically grounded model of metallized textile fabrics for protection against electromagnetic radiation, using the principle of scattering of electromagnetic waves, in the form of single layer or multilayer bicomplexes environment in which the scattering occurs on the conductive metal particles located in its entirety at distances much larger linear size of the particles. In relation to this environment, with the expectation that the volume of metal particles penetrated in the fabric after the explosion of a wire, may not be more than the amount of delay calculated dissipation factorp:

where λ is the wavelength of electromagnetic radiation in vacuum; εmW- dielectric constant material fabric and metal spherical particles, respectively; α is the lateral dimensions of the particles; VCR- the volume of exploding wires; N is the number of explosions delays in the processing of cloth; d is the thickness of the fabric; λ is the wavelength of electromagnetic radiation in vacuum; VTC- the volume of the metallized area of the tissue.

The resulting formula was associated with the installation parameters and material delays:

where Uco- voltage electric stimulation, blowing up the wire;

W is the energy of thermal explosion of a wire; ZBwave resistance of discharge circuit; ρmχpPLCOI- density, conductivity, those who lot of fusion and heat of vaporization of the material of the wire, respectively; Ltothe inductance of the path; Withb- capacity capacitor Bank.

The number of explosions delays N when processing the surface area of the canvas required to spray a given quantity of metal was calculated from the formula N=nSLTd⇔VCRTop EMFwhere nSL- repetition frequency electroconductive; Tdthe period of sampling time of submission of the section plane metallized surface of the canvas; VCR- the volume of the sprayed metal, as amended by the loss factorp EMFwhen electromagnetic focusing of trajectories of the ionized particles.

Using the derived formulae were calculated and experiments. When conducting experimental studies of the proposed method of metallization used natural and polyester fabric, whose properties are shown in table 1 and 2 respectively.

Table 1
Properties studied natural fabrics
Performance propertiesThe investigated tissue
1 sample2 sample 3 sample
cotton-linenlinenthe clap. paper
on the basis ofon a duckon the basis ofon a duckno basison a duck
The fibrous structure of warp and weft threads100% cotton70% cotton, 30% cottonin100% linen100% cotton
The linear density of the yarn, Tex28,258,2106,59930,530
The coefficient of twist of the yarn, cu/m404035353840
Type of weaveplain
Cloth thickness, mm0,48 0,530,36, 1,8
Surface tissue density, g/m2186232118
Surface filling, %76,3to 75.269,7
Porosity, %74,164,878,4
The density of yarns/10 cm227192153113230197
The breaking load, kgf29,114380,564,336,636,6
Relative burst lengthening, %of 5.45,918,616,217,2 17,7
Breathability, DM3/m2350457733
Crease resistance, %36,3of 37.829,834,836,3of 37.8

The scheme of the experiment is illustrated positions 1-12, depicted in figure 1: 1 - start switch; 2 - charging resistor; 3 - high-voltage transformer; 4 - high-voltage rectifier; 5 - operating condenser; 6 - working arrester, air, adjustable gap or electronically controlled high-voltage key; 7 - pin bushing positive electrode; 8 - operating wire; 9 - negative electrode; 10 - feeder wire; 11 - insulator of the gun with reflector; 12 - a sample of tissue. Electromagnetic elements focus of trajectories of the ionized particles of the metal and the elements of operational control values of scattering coefficients treated, metalized fabric on the diagram are not marked.

For the metallization of a tissue sample at the bottom of the switch 1 and form a periodic relaxation process: per the time current limited resistance 2, leads to the transformer output 3 high voltage; under the action of the constant component of the output voltage of the rectifier 4 is charging capacity Withbcapacitor 5; after reaching a specified value of air gap of a spark gap 6 breakdown voltage Ucothe electric circuit 6-9 by pulse discharge power accumulated in the capacitor 5; wire 8, a given volume VCRexplodes and fires the wire feeder 10; formed a cloud of ionized particles of the evaporated metal, due to direct and reflected the cumulative energy of thermal explosion in the gun 11, penetrates the tissue sample 12; time for filing another end of the wire 8, the capacitor 5 is charged, and when you touch the end of the wire 8 pin bushing positive electrode 7 is another thermal explosion, the frequency of which is set by the value of the capacitance Cbcapacitor 5, taking into account the inductance Ltogiven the output of the transformer 3.

Out engineering calculations and during the experimental tests established that the optimal modes of copper metallization selected tissue is achieved at voltages Ucothe air breakdown spark gap 4 from 2 to 4 kV, values, capacitybfrom 150 to 20 UF and inductance L to- from 30 to 40 µh for fabric samples attached to the gun, immersed in water, and confined between the planes of the experimental gun of 40 mm and, respectively, a length of tape 40 mm, 0.6 mm to 1 mm, it provides minimal loss of metal from 30 to 40% when the electromagnetic focusing of trajectories of the ionized particles.

The studies of the properties of experimental samples metallized fabrics used standard methods of textile materials. Determination of metal content in the tissue was performed using the software-analytical complex based portable x-ray fluorescence crystal-diffraction scanning spectrometer "SPECTROSCAN". Thermogravimetric studies were conducted derivatograph firms MOM Q-1500D (Hungary). Microbiological studies were performed in biological laboratories at the Center for ecological safety of the Russian Federation. Electrical and radio measurements was carried out according to methods recommended by the specialists of the University telecommunications them. Professor Mason-Bruevich. The sizes of the metal particles and the nature of their anchoring in the material volume of the tissues was studied using scanning electron microscope.

The results of the studies summarized in tables 3-6, and lusterous photographs and charts, shown in figure 2-6.

Figure 2 shows a photograph of increased electron microscope fragment mechanical fastening of the metal particles in the polymeric fiber, and figure 3 is a fragment of fixing the mould in the surface of the fibers.

Table 3
View paintingsNo. ex. arr.Surface tissue density, g/m2The average mass fraction of copper MCuin the sample, mg/g (VCR·ρm/VTK·ρTK)
Linen fabric223212,08
Cotton-linen11867,03
Mylar (PE)41503,13
Mylar (PE)5175the 3.65
Mylar (PE)61854,78

Table 4
FabricNo. ex. arr.no metal. sampleThe copper content, mg/g
Fabric len (out)210
Fabric len (meth)221,66
Fabric len (meth)233,38
Fabric len (meth)2417,556
Fabric len (meth)2523,484
Fabric x/b (out)360
Fabric x/(meth)370,98
Fabric x/(meth)382,73
Fabric x/b (the et) 3913,67
Fabric x/(meth)31020,84

Tables 5
The intensity of the development of fungi on a scale GOST 9.048-89
No. sample5 days incubation11 days incubation28 days incubation
1555
2155
3025
4015
5015
64 5
7025
8015
9015
10015

5,61
Table 6
No. of samples for washing LINENMass fraction of copper in tissue mg/g (VCR·ρm/VTK·ρTK)
before washingafter washings
1 wash2 wash3 wash4 wash5 wash
13,39was 2.762,382,342,351,43
23,013,181,982,611,35
37,35,483,98of 4.66of 4.382,87
42,51,511,740,450,470,44
55,12,583,492,652,051,59
Average4,78of 3.072,952,422,371,54

The graph depicted in Figure 4, illustrates the distribution of average mass fraction of copper Mcuin mg /g), embedded in electrostreak delays in the volume of cotton fabric with a thickness of 1.8 mm (model 3, table 1) depending on the values of high voltage Uco=2, 3, and 4 kV.

The graph depicted in figure 5, illustrates the distribution in the frequency range of mobile radio communications coefficient values of the scattering of radio emission linen fabric with a thickness of 0.53 mm (sample No. 2, table 1), consistent metallized proposed method copper and stainless steel in the proportions of 15 mg/g and 10 mg/g, respectively.

The graph depicted in Fig.6 illustrates the dependence of scattering coefficients of studies in the far infrared range of the weight (mg) volume mass of copper deposited in the structure of 1 Gy. linen thickness of 0.53 mm (sample No. 2, table 1) due to the variations in the values of capacitance Cband high voltage Uco.

Table 3 illustrates the potential metallization proposed by way of natural and synthetic fabrics, identified in tables 1 and 2 without losing their original properties.

Table 4 presents samples of metallic copper textile fabrics, studied at funginertness.

Table 5 shows the test results of the intensity of the development of fungi on the surface of the metallized fabrics.

Table 6 characterizes the change in the content of copper during repeated washings of the samples metallized fabrics.

The analysis of the experimental results set:

- Fixing ASTIC in the volume of tissue, metallized proposed method, is determined by their temperature at the time of collision with the cloth. If at the time of the collision, the particle of the metal has had time to cool down and its temperature less than the melting point of the polymer, it gets stuck in the polymeric fabric, as well as in the volume of natural fabrics, purely mechanically (Figure 2). If the temperature more than the melting point, then it will mould to the surface of the polymeric fibers of the fabric (Figure 3). In natural fabrics over hot, but not perejaume fiber particles get stuck deeper in its entirety. Optimal control of this process, it is necessary placing the gun in the water, in the method of electric arc metallization method is not feasible. In addition, it is possible to change the nature of the distribution of metal particles in the thickness of the fabric depending on the power of electric stimulation on the exploding wire (Figure 4). When industrial application of this process is automated through the use of high-voltage keys new generation of diacs.

- Study of the shielding properties of protective cloths and operational control and regulation in the metallization process yielded positive results (5, 6).

- Samples metallized paintings on the resistance to mold mineralnych gribaudo positive results (samples No. 3 through 5, and No. 8-10, table 5).

Results changes in the content of copper in the metallic in the aquatic environment of the tissue samples after repeated washings showed that after the first wash washed about 35% copper (table 6). Then, after following washings copper is practically not washed out, but after the fifth washing copper losses increase again (to 35%). After the first wash out of the fabric of those particles which were loosely attached, and after the fifth wash the cleaning solution penetrates to the border section between the particle and the fiber fabric and gradually destroys their relationship, stimulating the loss of copper during repeated washings. To increase the strength of the pinning particles in metallic proposed by way of natural and synthetic fabrics need to implement directly in the molecular structure of the substance fibers fabrics nano ionized metal particles formed as a result of thermal electrical explosion of wires and focusing the trajectory of their movement.

- Delays of metals: Pb-Zn-Sn-Al-NiCr-Cu-Fe-Ni while conducting experiments on the collected setting showed its performance in the same calculated ranges of values Uco, LtoWithb.

- Performance properties of the original tissue after metallization of the proposed method is not particularly limited.

Experimental test the project confirmed the viability of the proposed method for practical use of the achieved technical result in various sectors of the textile industry.

Comparative analysis of the proposed method with the identified analogues of the prior art showed that he is unknown and is not obvious to experts in those industries where there are metallic natural and synthetic fabrics, articles made of felt, leather, knitwear, plastic and other materials, and developed the technological cycle of the proposed method metallization materials can be implemented in industrial automated installation without the use of complicated mechanical devices, it is possible to make a conclusion on compliance of the way the patentability criteria.

The way metallization woven materials, which consists in melting the metal wires of the stimulation, but also in the sputtering particles of molten metal in the plane of the material, moving orthogonal to the direction of the spray pattern with a given feed rate and secure environment for the distribution of the spray from the damaging effects of high temperatures, characterized in that produce explosive melting substances delays due to high-voltage electric stimulation between the ends narisokonai delays, discrete supplied to the gun in the aquatic environment, and form a cloud of ionized particles of the evaporated metal, and metallization carried out due to the accumulation of energy t is platogo explosion W and electromagnetic focusing of trajectories of the ionized particles to a given metric metallization, moreover, the feed rate Fpthe processed material shall govern in accordance with a repetition rate of nSLelectroconductive, and changes the volume VCRexploding wires, the distribution environment of the spray, the voltage Ucoand the repetition rate of nSLelectroconductive formed bit of relaxation circuit Lto-Cbresults metallization set and control in the process of metallization on the value of the dissipation factorpelectromagnetic radiation characterized by the formula:

where Uco- voltage electric stimulation, blowing up the wire; εm, εW- dielectric material sheet and the metal particles, respectively; a transverse dimensions of the particles, W is the energy released when the electrical explosion of wires, a given volume VCR; Zinwave resistance of discharge circuit that generates a pulse repetition rate of nSLelectroconductive; ρmχp, λPL, λCOIdensity, electrical conductivity, heat of fusion and heat of vaporization of the material of a wire in a given environment; Ltothe inductance of the path; Withb- capacity capacitor Bank; N=nSLTd⇔VCRTop EMFthe number of explosions delays etc the treatment area of the tissue volume V TCnecessary to ensure a given metric metallization guaranteed experimentally justified dependence of the amount of metal introduced into the fabric of the volume of the exploding wire VCRamended on loss factorp EMFwhen electromagnetic focusing of trajectories of the ionized particles; Tdthe period of sampling time of submission of the section plane metallized surface; d is the thickness of the fabric; λ is the wavelength of electromagnetic radiation in a vacuum; the value of metallization Topspecify and control, using physical phenomenon of scattering of electromagnetic waves in the infrared range, and the voltage of the electric stimulation Ucomaking a wire with a length of 40 mm, a diameter of 0.6 to 1 mm, adjust in the range of 2 to 4 kV, when values of the capacitance Cbcapacitor Bank from 150 to 200 PF and the inductance of the discharge circuit Ltofrom 30 to 40 µh, while ensuring minimal loss of metal from 30% to 40% when the electromagnetic focusing of trajectories of the ionized particles.



 

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FIELD: textile industry.

SUBSTANCE: apparatus has reservoir for liquid phase polymer, liquid phase polymer feeding device, liquid phase polymer applying unit, and movable support for articles. Liquid phase polymer feeding device is formed as piston with conical head and transverse channel and is designed for reciprocation in horizontal plane. Dosing tube is positioned forward of liquid phase polymer feeding device. Liquid phase polymer application unit has feeding channels terminated with plates having openings arranged in accordance with geometric pattern to be applied onto fabric portion adjoining fabric edge.

EFFECT: increased efficiency in dosed application of liquid phase polymer onto surface of sewing article part hem, and preventing contamination of geometric pattern of printing equipment.

2 dwg

FIELD: methods for imparting charge to fibrous webs by means of non-aqueous liquid for usage of said webs as filters in filtering face masks for protection of user's mouth and nose.

SUBSTANCE: method involves wetting web formed from non-conductive fibers with non-aqueous polar liquid; substantially drying web for producing fibrous electronic web. Method differs from known methods of imparting charge to web in that it requires less energy for drying of web than methods using aqueous liquids. Also, many kinds of filaments poorly wetted with aqueous liquids are immediately wetted with non-aqueous liquids.

EFFECT: increased efficiency and simplified method.

12 cl, 2 dwg, 6 tbl, 26 ex

FIELD: electricity.

SUBSTANCE: monofilament contains conducting material and binding agent. The fabric that dissipates static charge includes polymer monofilaments containing conducting material containing metal particles and binding agent, which is attached in the form of solid coating in longitudinal direction of the above monofilaments or solid film in longitudinal direction, which is applied to them. The above monofilaments have static charge dissipation properties.

EFFECT: invention provides creation of threads to be used in industrial fabrics, for which static charge dissipation is compulsory.

21 cl, 5 dwg

FIELD: textiles, paper.

SUBSTANCE: textile product at stage (a) is sealed with an aqueous printing composition, at stage (b) it is heat-treated on one or more stages, at stage (c) other metal is precipitated on the textile product of a flat shape. At that the aqueous composition contains from 10 to 90 wt % of at least one metal powder (a) selected from the group consisting of powdered zinc, nickel, copper, tin, cobalt, manganese, iron, magnesium, lead, chromium, bismuth, and mixtures of these metals and their alloys. The composition also contains from 1 to 20 wt % of binder (b) which is an aqueous dispersion of film-forming polymer, from 0.1 to 4 wt % nonionic emulsifier (c), and from 0 to 5 wt % modifier of rheological properties (d). The method is used in the manufacture of textile products heated. The resulting textile product is capable to partially conduct electricity and shield electromagnetic radiation.

EFFECT: proposed technology of production of textile products requires no special equipment, has flexibility and low costs intensity.

12 cl, 2 tbl, 1 ex

FIELD: textile, paper.

SUBSTANCE: fabric is placed into solution, which contains nanoparticles of carbon, and is exposed to ultrasound effect. Additionally also noble metal nanoparticles are added into the solution, and/or nanoparticles of precious or semi-precious minerals. During or after ultrasonic exposure, microwave exposure is provided. Additional laser radiation with pulses of various length and impulsion along full surface of cloth is also possible. Then fabric is dried.

EFFECT: improved consumer and operational properties of fabric, its appearance.

12 cl, 1 dwg, 4 ex

FIELD: textile fabrics, paper.

SUBSTANCE: invention is related to chemical technology of fibrous materials, in particular to biocide treatment of tanning semi-finished products. Method consists in application of aqueous composition onto material with 0.035-0.09 g/l of AB katamin and potassium iodide taken in the ratio of 10:1, and 0.03-0.06 g/l of nanosize silver particles preparation. Preparation is a water dispersion with concentration of Ag+ 0.15-1.5 wt %, nanoparticle size 5-20 nm, and maximum optical density in the area of waves length of 315-540 nm. Components are applied simultaneously or serially with interval of 5 minutes at 30 C and total duration of processing of 10 minutes. Composition is applied by spraying or impregnation at roller machine, or at the stage of the last washing of semi-finished product in drum with liquid coefficient that equals 3.

EFFECT: invention provides for expansion and improvement of biocide treatment action spectrum, and also reduction of applied preparation consumption.

4 cl, 1 tbl, 3 ex

FIELD: technological processes.

SUBSTANCE: invention is related to technology for production of metalised woven and nonwoven materials, and may be used for production of catalysts, and also for production of decorative and finishing materials. Method includes previous chemical activation of coated material surface, using as activator glyoxal acid and/or oxalic acid. Then chemical metallisation is carried out, which is realised from solution containing bluestone. Stabiliser used is tetraethylene glycol, and reducer - glyoxal. Sodium hydroxide is used in solution to maintain required acidity.

EFFECT: invention provides for production of metalised dispersed woven and nonwoven materials using simplified technology, with simultaneous cheapening and provision of production safety due to use of proposed ingredients and their certain ratio.

2 ex

FIELD: textile industry, paper industry.

SUBSTANCE: invention relates to the technology of metallised material production for shielding from electromagnetic radiation in a broad range. Metallised material ''Nanotex'' is made of synthetic monofilament thread with diameter of 30-50 micron, and a number of threads is 30-160 threads per cm and surface density is 10-50 g/m2. Material has orifices between beam threads and shoots, size of which ranges within 1d-9d, where d is thread's diameter. Metal pads with predetermined surface resistance can be distributed over the material by weave or woven methods. The invention ensures production of the material with stable performances having high shielding capacity from different types of radiation including high-frequency radiation ranged from 300 to 16000 MHz.

EFFECT: production of the material with stable performance having high shielding capacity from different types of radiation.

3 cl, 2 dwg, 1 tbl, 5 ex

The invention relates to a technology for metallic woven and nonwoven materials and can be used for the manufacture of protective clothing from magnetic radiation and static electricity, for the manufacture of decorative and finishing materials

FIELD: textiles, paper.

SUBSTANCE: bicomponent fibers contain aliphatic polyester or a mixture of aliphatic polyesters, which form the first component, and polyolefin or a mixture of polyolefins, which form the second component. Polyolefin contains auxiliary material improving its biodegradation. Textile sheets include these bicomponent fibers and are comparable by mechanical properties to textile sheets based on polyolefin, while they are decomposed more efficiently under the action of microorganisms than the textile sheets based on polyolefin.

EFFECT: enhanced biodegradability, to textile sheets such as nonwoven materials comprising these fibers, which can be used in personal care products.

16 cl, 3 tbl, 2 ex

FIELD: textiles, paper.

SUBSTANCE: bicomponent fibers contain aliphatic polyester or a mixture of aliphatic polyesters, which form the first component, and polyolefin or a mixture of polyolefins, which form the second component. Polyolefin contains auxiliary material improving its biodegradation. Textile sheets include these bicomponent fibers and are comparable by mechanical properties to textile sheets based on polyolefin, while they are decomposed more efficiently under the action of microorganisms than the textile sheets based on polyolefin.

EFFECT: enhanced biodegradability, to textile sheets such as nonwoven materials comprising these fibers, which can be used in personal care products.

16 cl, 3 tbl, 2 ex

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