Method for peroxide bleaching and alkaline boiling of cotton fabric and device for its realisation

FIELD: textile industry.

SUBSTANCE: in device reservoir is divided into the first chamber and the second chamber of equal volumes by electroconductive and grounded membrane. Cathode is inserted into the first chamber, and anode is inserted into the second chamber, while cathode is located from membrane at the distance of 5-20 more than anode. The following components are added into water of the first chamber by means of feeders (g/l): sodium silicate 15-20, hydrogen peroxide 20-25, surfactant 2-3, table salt 30-60, powder of aluminium silicates 5-30 vol. %, to develop a dispersed mixture. DC voltage is applied to cathode and anode to create intensity of electric field with value of 50-200 V/m. Besides potential applied to anode is 5-20 times less than potential applied to cathode; cotton fabric is charged into the first chamber. Fabric is impregnated at the temperature of 85-95C, mixing dispersed mixture in the first chamber; water is mixed in the second chamber. Fabric is steamed at the temperature of 100-105C for an hour in steaming device, washed with hot and cold water, squeezed.

EFFECT: simplification, reduced dimensions and cost of device, lower production costs.

2 cl, 1 dwg

 

The group of inventions relates to methods of peroxide bleaching and alkaline otwarte cotton fabric and devices for their implementation in preparation for dyeing in the textile industry.

Known separate ways blanching and otwarte, i.e. in two stages. For otwarte usually use the cooking liquid containing sodium hydroxide, sodium bisulfite, sodium silicate, surface-active substances (SAS). Zaparivajut soaked in the cooking liquid fabric in an atmosphere of saturated water vapor at a temperature of 100-105C for one hour [see Balashov SO, Bulusheva N.E. and other Short course of chemical technology of fibrous materials. - M: Light and food industry, 1984, - p.29-33]. As whiteners used mainly oxidants: hypochlorites of sodium and calcium, sodium chlorite, hydrogen peroxide, less often nagkalat and drugs on the basis of dichloroisocyanurates acid. Bleaching with hydrogen peroxide is as follows. The fabric after otwarte impregnate for 6-10 hours at a temperature of 90C with a solution containing (g/l): hydrogen peroxide 3-5, sodium silicate 8-10, caustic soda 3-5, wetting 1-2, then the fabric is placed in Zapadnye machine, where was incubated for 60 min at a temperature of 100C, and washed. Somewhat different from the above-described method, peroxide bleaching and alkaline otwarte, the conclusion is decomposing in what rassledovanie, the washed fabric is soaked for 6-10 hours at a temperature of 90C with a solution containing (g/l): hydrogen peroxide 20-25, caustic soda 5-7, sodium silicate 15-20, surfactants 2-3, the evaporation at a temperature of 100C for one hour, subsequent flushing hot and cold water [see Balashov SO, Bulusheva N.E. and other Short course of chemical technology of fibrous materials. - M: Light and food industry, 1984, - p.36].

The disadvantage of this way of analog is the lack of efficiency of the process, a great time operations, the high cost of the production process, high degree of risk due to the use of caustic soda.

The known device for implementing the method of peroxide bleaching and alkaline otwarte cotton fabrics, which include reservoir; a dispenser for introducing into the water tank of hydrogen peroxide, caustic soda, sodium silicate, surfactant; a device for loading into the container and unloading of her cotton fabrics; the dewatering fabric device; Zapadnoi cooking apparatus [see Balashov SO, Bulusheva N.E. and other Short course of chemical technology of fibrous materials. - M: Light and food industry, 1984, - p.36-37].

A disadvantage of the known devices of this analogy is low productivity, high cost of production process carried out on these devices, high degree of risk due to the necessity of working with concentrated caustic soda.

The closest technical solution to the same destination to the claimed method according to the essential features and the maximum achievable positive effect, and therefore adopted for the prototype, is the way the peroxide bleaching and alkaline otwarte cotton fabric [see patent RU 2295594, 03.11.2005], which is achieved by the fact that the capacity is divided into the first chamber and the second chamber aperture; the first cell, enter the cathode, the second anode chamber and injected; into the water first chamber dispenser type (g/l): hydrogen peroxide 20-25, sodium silicate 15-20, surfactant 2-3, table salt 10-20; served on the electrode voltage 5-35; loaded into the first chamber cotton fabric; impregnated fabric at a temperature of 85-95C; mix in the second chamber water; zaparivajut fabric at a temperature of 100-105C for one hour; wash cloth with hot and cold water.

The disadvantage of the prototype method is its high cost.

The closest technical solution of the same purposes of the claimed device according to the essential features and the maximum achievable effect, and therefore adopted for the prototype is a device for implementing the method of peroxide bleaching and alkaline from the arch cotton fabric [see patent RU 2295594, 03.11.2005], which includes the capacity; the first chamber, the second chamber in the vessel; the aperture between the first and second chambers; a cathode in the first chamber, the anode of the second chamber; a dispenser for introduction into the water of the first chamber of sodium silicate, sodium bisulfate, surfactant, salt; a device for loading into the first chamber and the unloading of her cotton fabrics; the dewatering fabric device; Zapadnoi cooker.

A disadvantage of the known device of the prototype is its complexity, bulkiness, high cost of the device.

A single effect of a group of inventions - simplification, size reduction and cost of construction of the device, reducing the cost of manufacturing costs.

Specified single technical result in the exercise of invention the object of the method is achieved by the fact that the capacity is divided into the first chamber and the second chamber equal amounts of electrically conductive and grounded aperture; the first cell, enter the cathode, the second chamber enter the anode so that the cathode is located on the diaphragm 5 to 20 times farther than the anode; in the water of the first chamber dispensers injected (g/l): sodium silicate 15-20, hydrogen peroxide 20-25, surfactants 2-3, table salt 30-60, powder aluminosilicates 5-30 vol.%, get thereby dispersing the mixture (DS); served on the cathode and the anode voltage postoyanno the current creating the electric field magnitude 50-200 V/m; moreover, the anode serves potential for module in 5-20 times smaller than the cathode; loaded into the first chamber cotton fabric; impregnated fabric at a temperature of 85-95C, mixing DS in the first chamber; mixing the second chamber water; zaparivajut fabric at a temperature of 100-105C for one hour in suparna apparatus, washed with hot and cold water, wring out.

Specified single technical result in the exercise of invention the object of the device is achieved that includes capacity; the first and second chambers of equal volume in the tank; an electrically conductive and grounded aperture between the first and second chambers; a cathode in the first chamber, the second anode chamber and the cathode is located on the diaphragm 5 to 20 times farther than the anode; a dispenser for introduction into the water of the first chamber of sodium silicate, hydrogen peroxide, surfactant, salt; a dispenser for introduction into the water of the first chamber of the powder binder; a device for loading into the first chamber and the unloading of her cotton tissue; adjusting the mixer in the first chamber; adjusting the mixer in the second chamber; the dewatering cotton fabric device; Zapadnoi cooker.

The invention is illustrated in the drawing.

The device for implementing the method of peroxide Belen is I and alkaline otwarte cotton fabrics includes capacity 1; the first camera 2 and the second camera 3 equal volumes in the container 1; an electrically conductive and grounded aperture 4 between the first 2 and second 3 cameras; the cathode 5 in the first chamber 2 and the anode 6 in the second chamber 3 and the cathode 5 is from the diaphragm 4 is 5 to 20 times farther than the anode 6; dispenser 7 for introduction into the water of the first chamber 2 of sodium silicate, sodium bisulfate, surfactant, salt; dispenser 8 for introduction into the water of the first chamber 2 powder silicates; device 9 for loading into the first chamber 2 and the discharge from it cotton fabrics; adjusting the mixer 10 in the first chamber 2, the device-mixer 11 in the second chamber 3; the dewatering cotton fabric device 12; Zapadnoi the cooking apparatus 13.

Specified in the formula limits the values of the processing parameters selected for the following reasons. The lower limit of the amount loaded to the cathode of salt 30 g/l is necessary and sufficient for impregnation of fabrics cooking solution fed to the anode and cathode of the constant voltage that creates the electric field strength value of 200 V/m, adding water to the powder and binder in a ratio of 5 vol.%; the upper limit of the number loaded into the cathode chamber of salt 60 g/l is necessary and sufficient for impregnation of fabrics cooking solution when applying to the electrodes a voltage that creates tension ele the electric field size 50/m when added to water powder binder in a ratio of 30%vol.

Example. The container 1 with the body and lid of the plastic wall thickness of 0.015 m in the form of a parallelepiped internal dimensions: height of 1.5 m, cross-section in plan of 1.72.6 m2divided into the first chamber 2 and the second camera 3, setting within a larger cross-sectional of the second camera 3, the first chamber 2 of the plastic wall thickness 0.015 m in the form of a cube with edges of size 1.5 m, one side of which is made so that has through holes with a diameter of 0.005 m with a step of 0.01 m, covered grounded graphite cloth and therefore which is the divider between cells with properties of fine filter water - aperture 4; aperture 4 kasemset; in the first chamber 2 near the wall opposite the wall with the hole, introducing a flat graphite electrode the cathode 5; the second chamber 3 against the wall of the first chamber 2 through the holes injected second flat graphite electrode - anode 6, thus creating a two-chamber design of a diaphragm electrolytic cell, the cathode 5 and the anode 6 which is spaced from the diaphragm 4 different distances, namely: in the first chamber 2, the cathode 5 is from the diaphragm 15 times farther than the anode 6 in the second chamber 3, accordingly, in the cross section perpendicular to the cathode 5 and the anode 6 and the diaphragm 4, the first camera 2 to 15 times longer than the second camera 3 when equality is their total amounts (3,375 m 3); in the water of the first chamber 2 of the dispenser 7 is injected (g/l): sodium silicate 4, bisulfate, sodium 2,5, surfactants 1,5, salt 45; dispenser 8 in the water of the first chamber is injected powder aluminosilicates: zeolite (50%), montmorillonite (50%), in the ratio of 20 vol.%; served on the cathode 5 and the anode 6, the DC voltage value 256 B, which creates the electric field value 160/m; moreover, the cathode 5 offers the potential of -240 B, the anode serves 6 potential +16 B, modulo the anode serves 6 to 15 times lower potential than the cathode 5; load device 9 cotton fabric - satin - rasprava in the first chamber 2 of the container 1; impregnate the fabric of the cooking solution under stirring device 10 is an electric motor with a comb - dispersive powder mix of silicates, water solution is introduced ingredients and solution caustic soda concentration of 20 vol.%, formed under the influence of an electric field of salt; stir fixture 11 - water pump submersible type "kid" with a hose length of one meter of water in the second chamber; the fabric from the first chamber unloading device 9, press device 12, zaparivajut in zapadnom the cooking apparatus 13 in an atmosphere of saturated water vapor at a temperature of 100C for 1 hour, washed.

This group of technical proposals makes possible two times reduced compared with the method of the prototype cost of electricity for the process peroxide bleaching and alkaline otwarte cotton fabrics, to simplify, reduce, due to the introduction of the first chamber into the second chamber dimensions and the cost of construction of the device for peroxide bleaching and alkaline otwarte cotton fabric.

Thus, the presented data demonstrate the implementation of the use of the claimed group of inventions the following cumulative conditions:

tools embodying the claimed group of inventions in their implementation, are intended for peroxide bleaching and alkaline otwarte cotton fabric for use in preparation for dyeing in the textile industry;

- for the claimed group of inventions, as they are described in the independent clauses set forth in the claims, confirmed the possibility of their implementation using the steps described in the application or known before the priority date tools and methods.

Therefore, the claimed group of inventions meets the condition of "industrial applicability".

1. The way the peroxide bleaching and alkaline otwarte cotton fabric, which consists in the fact that the capacity is divided into first and second chambers by a diaphragm; enter into the first chamber and a cathode, the second chamber anode; in the water of the first cell type (g/l): sodium silicate 15-20, hydrogen peroxide 20-25, surfactants 2-3, salt 30-60; served on the cathode and the anode of the DC voltage; load in the PE the new camera cotton fabric; impregnated fabric at a temperature of 85-95C; mix in the second chamber water; zaparivajut fabric at a temperature of 100-105C for one hour in suparna apparatus, washed with hot and cold water, wring out, characterized in that the container is divided into two chambers of equal volume conductive and grounded aperture; the cathode include a diaphragm 5 to 20 times farther than the anode; served on the cathode and the anode of the DC voltage that creates the electric field magnitude 50-200 V/m; on the anode serves potential for module in 5-20 times smaller than the cathode; in the first the camera introducing more powder binder in a proportion of 5-30 vol.%; mix dispersing the mixture in water in the first and second chambers.

2. The device for implementing the method of peroxide bleaching and alkaline otwarte cotton fabrics, including capacity; the first chamber and the second chamber in the vessel; the aperture between the first and second chambers; a cathode in the first chamber, the anode of the second chamber; a dispenser for introduction into the water of the first chamber of sodium silicate, sodium bisulfate, surfactant, salt; a device for loading and unloading from the first chamber of the tissue; the dewatering fabric device; Zapadnoi cooking apparatus, characterized in that the first and second chamber in the vessel have equal volumes; aperture electrically conductive and grounded; the cathode is the t of the diaphragm in 5-20 times farther away than the anode; additional features include a dispenser for introduction into the water of the first chamber of the powder silicates, device mixer in the first chamber, the device is a mixer in the second chamber.



 

Same patents:

FIELD: textile industry.

SUBSTANCE: in device reservoir is divided into the first chamber and the second chamber of equal volumes by grounded electroconductive membrane. Cathode is inserted into the first chamber, and anode is inserted into the second chamber, while anode is located from membrane at the distance of 5-20 more than cathode. Table salt in amount of 10-50 g/l, powder of aluminium silicates in amount of 5-30 vol. % are added into water of the first chamber. Cotton fabrics are loaded into the first chamber. DC voltage is sent to cathode and anode to develop intensity of electric field of 20-200 V/m. Potential sent to anode is 5-20 times less by module than the one sent to cathode; dispersed mixture is mixed in the first chamber; fabrics are washed in the first chamber by running water for 10-20 minutes; water is mixed in the second chamber; fabrics are discharged, squeezed.

EFFECT: reduced dimensions of device, lower production costs.

2 cl, 1 dwg

FIELD: textile industry.

SUBSTANCE: in device reservoir is divided into the first chamber and the second chamber of equal volumes by grounded electroconductive membrane; cathode is inserted into the first chamber, and anode is inserted into the second chamber, while cathode is located from membrane at the distance of 5-20 more than anode; the following components are added into water of the first chamber (g/l): sodium silicate 3-5, sodium bisulphate 2-3, surfactant 1-2, table salt 30-60, powder of aluminium silicates 5-100; cotton fabrics are loaded into the first chamber; DC voltage is sent to cathode and anode to develop intensity of electric field of 50-200 V/m; besides potential sent to anode is 5-20 times less by module than the one sent to cathode; fabrics are impregnated with boiling solution for 1-5 hours; dispersed mixture is mixed in the first chamber, and water is mixed in the second one; fabrics are discharged, squeezed and steamed in steaming boiling device.

EFFECT: reduced dimensions of device, lower production costs.

2 cl, 1 dwg

FIELD: textile, paper.

SUBSTANCE: in device reservoir is divided into the first chamber and the second chamber of equal volumes by electroconductive and grounded membrane; anode is inserted into the first chamber, and cathode is inserted into the second chamber, while anode is located from membrane at the distance of 5-20 more than cathode; salts of sulfuric acid with concentration of 5-10 vol. % are added into water of the first chamber, as well as powder of aluminium silicates in proportion of 5-30 vol. %, creating dispersed mixture; fabric of cotton fibres is loaded into the first chamber; DC voltage is sent to cathode and anode to develop intensity of electric field of 50-200 V/m; besides potential sent to cathode is 5-20 times less by module than the one sent to anode; fabrics are impregnated and soaked for 0.5-5 hours; dispersed mixture is mixed in the first chamber, and water is mixed in the second one; fabrics are washed, discharged, squeezed.

EFFECT: simplification of device, reduced production costs.

2 cl, 1 dwg

FIELD: textile industry, in particular, peroxide whitening and alkaline cooking processes used in dyeing of cotton cloths.

SUBSTANCE: method involves dividing reservoir of material washing machine into two chambers by means of partition having fine filtering properties for fine filtering of water; introducing electrodes into said chambers; filling chambers with water, with running water being directed through chamber having positive electrode and called anode chamber, and water comprising, g/l: hydrogen peroxide 20-25, sodium silicate 15-20, surfactant 2-3, being directed through chamber having negative electrode and called cathode chamber; charging common salt into cathode chamber in an amount of 10-20 g/l; supplying electrodes with voltage of 5-35 V; charging cloths into cathode chamber for whitening and alkaline cooking; impregnating cloths in reservoir of material-washing machine at temperature of 85-95 C with aqueous solution of salts of indicated composition; steaming at temperature of 100 C; washing with hot and cold water.

EFFECT: reduced processing time, decreased costs of whitening and cooking processes, and improved safety of operating conditions.

1 dwg

FIELD: textile industry, in particular, cotton fabric washing after mercerization process in production of dyed textile materials.

SUBSTANCE: method involves dividing bath adapted for washing of cotton fabrics and supplied with running water into two chambers by means of partition featuring the properties of fine filter for water; introducing electrodes into both of said chambers; supplying voltage to electrodes for creating electric field having intensity E=20-200 V/m; changing voltage polarity on electrodes with periodicity of 1-5 min; washing cotton fabric within chamber of larger size during 5-20 min. Method allows electric field intensity and, correspondingly, voltage supplied to electrodes to be reduced and safety of washing process to be enhanced.

EFFECT: increased efficiency, reduced process time, decreased consumption of power and costs for washing of cotton fabrics after mercerization process, and improved safety of process.

1 dwg

FIELD: textile industry, in particular, cotton fabric cooking technology used in textile material dyeing process.

SUBSTANCE: method involves dividing fabric cooking reservoir of material washing machine, wherein fabric is impregnated, into two chambers by means of partition featuring properties of fine filter for water; introducing electrodes into said chambers; filling with water, said chamber with negative electrode, which is defined as cathode chamber, being filled with water containing (mg/l): sodium nitrate 3-5; sodium bisulfate 2-3; surfactant 1-2; charging the same cathode chamber with edible salt in an amount of 30-60 g/l; directing running water through chamber incorporating positive electrode; supplying electrodes with electric potential difference of 5-35 V; charging fabric into cathode chamber; impregnating fabric with cooking solution of indicated composition; squeezing fabric to moisture content of 100-110%; boiling in boiling cooking apparatus under saturated steam atmosphere at temperature of 100-105 C during 1 hour; washing with hot and cold water in material washing machine.

EFFECT: reduced expenses for cotton fabric cooking process, and improved safety conditions during fabric cooking process.

1 dwg

FIELD: textile industry, in particular, cotton fabric desizing process and equipment.

SUBSTANCE: method involves dividing bath adapted for desizing of cotton fabrics into two chambers by means of partition featuring the properties of fine filter for water; introducing electrodes into both of said chambers and filling bath with water; introducing into bath chamber of larger size incorporating positive electrode and used as anode chamber sulfites in an amount of 3-15 g/l, powder of amphoteric aluminosilicates: montmorillonite, beidellite, nontronite, kaolinite, halloysite, talc in an amount of 1-30 g/l, each component being introduced individually or in random mixture thereof; charging cotton fabrics into bath; supplying constant potential difference of 5-35 V to electrodes; impregnating and holding fabric in anode part of bath at temperature of 30-40 C during 0.5-5 hours; washing fabrics with cold water; discharging fabrics from bath and squeezing.

EFFECT: simplified construction and reduced production costs, increased efficiency, and improved safety during operation of apparatus.

3 cl, 1 dwg

FIELD: textile industry, in particular, structure of fabric and method for producing such a fabric.

SUBSTANCE: fabric is manufactured by interweaving of warp and weft threads, with weft threads being combined thread including polyurethane core making 0.5-5.0% by weight of fabric, and twisted layer. Fabric is composed of thermally stabilized filaments. Warp threads and twisted layer are made from cotton filaments. Surface density of fabric is 75-435 g/m2, with number of warp threads per 10 cm making 154-446 and number of weft threads making 150-481. Method involves providing mutual interweaving of weft and warp thread systems; performing chemical processing, dyeing, printing and providing final finishing. Thermal stabilization process is carried out at temperature of 170-1900C for 40-90 s immediately before preliminary chemical processing or dyeing or printing process or before final finishing procedure.

EFFECT: convenient use and reduced manufacture costs.

3 cl, 1 tbl

The invention relates to the finishing of textile materials, in particular, to the development of resource-saving technologies, providing protection for the environment from the harmful industrial pollution

The invention relates to the textile industry, namely to the technology of dyeing fabrics containing cotton fiber

FIELD: textile industry, in particular, structure of fabric and method for producing such a fabric.

SUBSTANCE: fabric is manufactured by interweaving of warp and weft threads, with weft threads being combined thread including polyurethane core making 0.5-5.0% by weight of fabric, and twisted layer. Fabric is composed of thermally stabilized filaments. Warp threads and twisted layer are made from cotton filaments. Surface density of fabric is 75-435 g/m2, with number of warp threads per 10 cm making 154-446 and number of weft threads making 150-481. Method involves providing mutual interweaving of weft and warp thread systems; performing chemical processing, dyeing, printing and providing final finishing. Thermal stabilization process is carried out at temperature of 170-1900C for 40-90 s immediately before preliminary chemical processing or dyeing or printing process or before final finishing procedure.

EFFECT: convenient use and reduced manufacture costs.

3 cl, 1 tbl

FIELD: textile industry, in particular, cotton fabric desizing process and equipment.

SUBSTANCE: method involves dividing bath adapted for desizing of cotton fabrics into two chambers by means of partition featuring the properties of fine filter for water; introducing electrodes into both of said chambers and filling bath with water; introducing into bath chamber of larger size incorporating positive electrode and used as anode chamber sulfites in an amount of 3-15 g/l, powder of amphoteric aluminosilicates: montmorillonite, beidellite, nontronite, kaolinite, halloysite, talc in an amount of 1-30 g/l, each component being introduced individually or in random mixture thereof; charging cotton fabrics into bath; supplying constant potential difference of 5-35 V to electrodes; impregnating and holding fabric in anode part of bath at temperature of 30-40 C during 0.5-5 hours; washing fabrics with cold water; discharging fabrics from bath and squeezing.

EFFECT: simplified construction and reduced production costs, increased efficiency, and improved safety during operation of apparatus.

3 cl, 1 dwg

FIELD: textile industry, in particular, cotton fabric cooking technology used in textile material dyeing process.

SUBSTANCE: method involves dividing fabric cooking reservoir of material washing machine, wherein fabric is impregnated, into two chambers by means of partition featuring properties of fine filter for water; introducing electrodes into said chambers; filling with water, said chamber with negative electrode, which is defined as cathode chamber, being filled with water containing (mg/l): sodium nitrate 3-5; sodium bisulfate 2-3; surfactant 1-2; charging the same cathode chamber with edible salt in an amount of 30-60 g/l; directing running water through chamber incorporating positive electrode; supplying electrodes with electric potential difference of 5-35 V; charging fabric into cathode chamber; impregnating fabric with cooking solution of indicated composition; squeezing fabric to moisture content of 100-110%; boiling in boiling cooking apparatus under saturated steam atmosphere at temperature of 100-105 C during 1 hour; washing with hot and cold water in material washing machine.

EFFECT: reduced expenses for cotton fabric cooking process, and improved safety conditions during fabric cooking process.

1 dwg

FIELD: textile industry, in particular, cotton fabric washing after mercerization process in production of dyed textile materials.

SUBSTANCE: method involves dividing bath adapted for washing of cotton fabrics and supplied with running water into two chambers by means of partition featuring the properties of fine filter for water; introducing electrodes into both of said chambers; supplying voltage to electrodes for creating electric field having intensity E=20-200 V/m; changing voltage polarity on electrodes with periodicity of 1-5 min; washing cotton fabric within chamber of larger size during 5-20 min. Method allows electric field intensity and, correspondingly, voltage supplied to electrodes to be reduced and safety of washing process to be enhanced.

EFFECT: increased efficiency, reduced process time, decreased consumption of power and costs for washing of cotton fabrics after mercerization process, and improved safety of process.

1 dwg

FIELD: textile industry, in particular, peroxide whitening and alkaline cooking processes used in dyeing of cotton cloths.

SUBSTANCE: method involves dividing reservoir of material washing machine into two chambers by means of partition having fine filtering properties for fine filtering of water; introducing electrodes into said chambers; filling chambers with water, with running water being directed through chamber having positive electrode and called anode chamber, and water comprising, g/l: hydrogen peroxide 20-25, sodium silicate 15-20, surfactant 2-3, being directed through chamber having negative electrode and called cathode chamber; charging common salt into cathode chamber in an amount of 10-20 g/l; supplying electrodes with voltage of 5-35 V; charging cloths into cathode chamber for whitening and alkaline cooking; impregnating cloths in reservoir of material-washing machine at temperature of 85-95 C with aqueous solution of salts of indicated composition; steaming at temperature of 100 C; washing with hot and cold water.

EFFECT: reduced processing time, decreased costs of whitening and cooking processes, and improved safety of operating conditions.

1 dwg

FIELD: textile, paper.

SUBSTANCE: in device reservoir is divided into the first chamber and the second chamber of equal volumes by electroconductive and grounded membrane; anode is inserted into the first chamber, and cathode is inserted into the second chamber, while anode is located from membrane at the distance of 5-20 more than cathode; salts of sulfuric acid with concentration of 5-10 vol. % are added into water of the first chamber, as well as powder of aluminium silicates in proportion of 5-30 vol. %, creating dispersed mixture; fabric of cotton fibres is loaded into the first chamber; DC voltage is sent to cathode and anode to develop intensity of electric field of 50-200 V/m; besides potential sent to cathode is 5-20 times less by module than the one sent to anode; fabrics are impregnated and soaked for 0.5-5 hours; dispersed mixture is mixed in the first chamber, and water is mixed in the second one; fabrics are washed, discharged, squeezed.

EFFECT: simplification of device, reduced production costs.

2 cl, 1 dwg

FIELD: textile industry.

SUBSTANCE: in device reservoir is divided into the first chamber and the second chamber of equal volumes by grounded electroconductive membrane; cathode is inserted into the first chamber, and anode is inserted into the second chamber, while cathode is located from membrane at the distance of 5-20 more than anode; the following components are added into water of the first chamber (g/l): sodium silicate 3-5, sodium bisulphate 2-3, surfactant 1-2, table salt 30-60, powder of aluminium silicates 5-100; cotton fabrics are loaded into the first chamber; DC voltage is sent to cathode and anode to develop intensity of electric field of 50-200 V/m; besides potential sent to anode is 5-20 times less by module than the one sent to cathode; fabrics are impregnated with boiling solution for 1-5 hours; dispersed mixture is mixed in the first chamber, and water is mixed in the second one; fabrics are discharged, squeezed and steamed in steaming boiling device.

EFFECT: reduced dimensions of device, lower production costs.

2 cl, 1 dwg

FIELD: textile industry.

SUBSTANCE: in device reservoir is divided into the first chamber and the second chamber of equal volumes by grounded electroconductive membrane. Cathode is inserted into the first chamber, and anode is inserted into the second chamber, while anode is located from membrane at the distance of 5-20 more than cathode. Table salt in amount of 10-50 g/l, powder of aluminium silicates in amount of 5-30 vol. % are added into water of the first chamber. Cotton fabrics are loaded into the first chamber. DC voltage is sent to cathode and anode to develop intensity of electric field of 20-200 V/m. Potential sent to anode is 5-20 times less by module than the one sent to cathode; dispersed mixture is mixed in the first chamber; fabrics are washed in the first chamber by running water for 10-20 minutes; water is mixed in the second chamber; fabrics are discharged, squeezed.

EFFECT: reduced dimensions of device, lower production costs.

2 cl, 1 dwg

FIELD: textile industry.

SUBSTANCE: in device reservoir is divided into the first chamber and the second chamber of equal volumes by electroconductive and grounded membrane. Cathode is inserted into the first chamber, and anode is inserted into the second chamber, while cathode is located from membrane at the distance of 5-20 more than anode. The following components are added into water of the first chamber by means of feeders (g/l): sodium silicate 15-20, hydrogen peroxide 20-25, surfactant 2-3, table salt 30-60, powder of aluminium silicates 5-30 vol. %, to develop a dispersed mixture. DC voltage is applied to cathode and anode to create intensity of electric field with value of 50-200 V/m. Besides potential applied to anode is 5-20 times less than potential applied to cathode; cotton fabric is charged into the first chamber. Fabric is impregnated at the temperature of 85-95C, mixing dispersed mixture in the first chamber; water is mixed in the second chamber. Fabric is steamed at the temperature of 100-105C for an hour in steaming device, washed with hot and cold water, squeezed.

EFFECT: simplification, reduced dimensions and cost of device, lower production costs.

2 cl, 1 dwg

FIELD: textiles, paper.

SUBSTANCE: invention relates to the textile industry, and relates to flame-proof textile materials. The flame-proof textile material comprises cellulosic fibres and fibres with their inherent flame-resistance. The flame-proof textile material can be processed with one or more flame-proof means to impart flame-resistance to cellulosic fibres.

EFFECT: invention enables to increase flame-resistance of textile material, while providing comfort when it is worn.

31 cl, 1 tbl, 1 ex

Up!