Method for carbonization of wool fibers and apparatus for performing the same

FIELD: textile industry, in particular, carbonization of wool fibers, may be used in preliminary wool fiber or yarn dyeing operations.

SUBSTANCE: method involves dividing bath into two chambers by means of partition having properties of fine filter for cleaning of water; introducing electrodes into both bath chambers; filling bath with water; introducing sulfites into bath chamber with positive electrode identified as anode chamber in an amount of 5-20 g/l, powder of amphoterous aluminosilicates: montmorillonite, kaolinite (anauxite), halloysite, beidellite, nontronite, talc, pyrophyllite in an amount of 1-30 g/l, one of said aluminosilicates, or random mixture thereof; supplying electric potential difference of 5-35 V to electrodes; charging wool fibers into bath; impregnating and holding wool fibers at temperature of 20-25 C during 10-25 min in 3-7.5%-aqueous solution of sulfuric acid; squeezing fibers to 70-100%; drying at temperature of 70-90 C; providing thermal processing at temperature of 100-115 C during 3-7 min; rinsing in cold water; neutralizing acid residues in fibers in 2%-solutions of sodium carbonate, ammonia or sodium acetate; additionally rinsing and discharging from bath.

EFFECT: reduced sizes and production costs of apparatus and increased carbonization effectiveness.

3 cl, 1 dwg

 

The invention relates to textile manufacturing, and in particular to methods and devices carbonization of wool fibers, and can be used in the preparatory operations of dyeing wool fibers - wool or yarn made of wool.

Known methods of carbonization of wool fibers with sulfuric acid, hydrogen chloride, hydrochloric acid, aluminium chloride or magnesium [see Bernard Century Practice of bleaching and dyeing of textile materials. - "Light industry", 1971. - s-303], the purpose of which is the removal of wool cellulosic impurities, worsening the appearance of tissues (Burr, remnants of food, woven filaments of cellulose fibers).

The disadvantage of this way of analog is the lack of efficiency of the carbonization process, a large, up to one hour processing time in solutions of stain, the high cost of the production process.

The known device for carbonization of wool fibers, comprising a bath of an aqueous solution of the acid, the delivery system into the tub and out of the bath wool fibers, dewatering wool fiber devices [see Bernard Century Practice of bleaching and dyeing of textile materials. - M: Light industry, 1971, - s, 303].

A disadvantage of the known devices of this analogy is insufficient efficiency of their work, a relatively large time to carry out fully what about the process of carbonization, the high cost of works carried out on this type of devices.

The closest technical solution to the same destination to the claimed method according to the essential features and the maximum achievable positive effect and is therefore adopted for the prototype is a method of carbonization of wool fibers, comprising introducing into the water bath of sulphuric acid to the concentration of its aqueous solution 3-7,5%, loading wool fibers in a bath, extract them at a temperature of 20-25°C for 30-45 minutes, removing excess acid from the fiber, spinning up to 70-100%, drying at 70-90°C, heat treatment at a temperature of 100-110°within 3-7 min, rinse with cold water, the neutralization of the residual acid in the fibers in 2%solutions of soda, ammonia or sodium acetate and incremental leaching, dumping wool fibers from the bath [see Balashov SO, Bulusheva N.E., Novoradovskaya T.S., garden SF Short course of chemical technology of fibrous materials. - M: Light and food industry, 1984, - p.50, 51].

The disadvantage of the prototype is the lack of efficiency of the carbonization process, a large, up to 40 min, the duration of the process, high cost production cost, high risk work due to the need for storage of concentrated sulfuric acid in a special storage, transportation and the nuclear biological chemical (NBC acid in the store and from the store in the tank for carbonation.

The closest technical solution of the same purposes of the claimed device according to the essential features and the maximum achievable positive effect and is therefore adopted for the prototype is a device for implementing the method of carbonization of wool fibers, comprising a bath for carbonization, tanks for storage of concentrated sulfuric acid, pipelines, valves for the supply of sulfuric acid in water bath for carbonization, the dispenser feed acid to the bath, the device for feeding in the bath, the output from the bath wool fibers, the dewatering fabric device [see Balashov SO, Bulusheva N.E., Novoradovskaya T.S., garden SF Short course of chemical technology of fibrous materials. - M: Light and food industry, 1984, - p.50-51].

A disadvantage of the known device of the prototype is its complexity, bulkiness, lack of effectiveness, the long duration of the process of carbonation in it wool fibers, the high cost of the device and held therein carbonization process, high degree of hazard when operating the device.

Unified technical result of the invention is simplification, size reduction and cost of construction of the device for carbonization, the efficiency of the carbonization process, the reduction in the duration% the SSA carbonization, cost reduction of production costs carbonization of wool fibers, improving the safety of work in the process.

Specified single technical result by carrying out the invention the object the method is achieved in that tub for carbonization is divided into two chambers by a partition having the properties of the fine filter water, is introduced into both chambers of the bath electrodes, pour water into the tub, in a cell with a positive electrode, called the anode chamber, introducing salt of sulfuric acid in the amount of 5-20 g/l, powder amphoteric silicates: montmorillonite, kaolinite (anoxia), halloysite, beidellite, nontronite, talc, pyrophyllite in the amount of 1-30 g/l, one of them, either in their random the mixture is loaded into the anode chamber baths wool fiber is fed to the electrodes, the electric potential difference value 5-35, is introduced into the anode chamber woolen fibers stand woolen fibers in the bath for 10-25 minutes at 20-25°unloaded fibers from the bath, squeezed fiber up to 70-100%, dried at 70 to 90°To conduct heat treatment at 100-110°C for 3-7 min, loaded onto a bath of fiber, washed with cold water, neutralized residues of sulfuric acid in the fibers in the 2-percentage the solutions of caustic soda, ammonia or sodium acetate, washed again, unload the hair is on of the bath, press the wool fibres.

Specified single technical result by carrying out the invention the device object is achieved in that the device for implementing the method of carbonization of wool fibers includes: a tub for carbonization; the partition having the properties of the fine filter water that separates the bath into two chambers; the electrodes in both cells, and Luggage with a positive electrode, called the anode chamber, is designed for making salts of sulfuric acid and powder amphoteric silicates: montmorillonite, kaolinite (anoxia), halloysite, beidellite, nontronite, talc, pyrophyllite, for insertion in and removal from her wool fibers, and the camera with the negative electrode, called the cathode chamber, designed to flow water dispenser in water baths salts of sulfuric acid; a dispenser for introducing into the water bath powder listed amphoteric silicates, one of them, or in arbitrary mixtures thereof; devices for feeding into the tub, discharge from the bath woolen fibers; the dewatering of the fiber fixture.

The invention is illustrated in the drawing.

The device for implementing the method includes: tub 1 for carbonization of wool fibers; partition 2 having the properties of the fine filter water, to ora shares a bath with two cameras; the electrodes 3 in both chambers, and the chamber 4 with the positive electrode, called the anode chamber, is designed for soaking and soaking in sulfuric acid wool fibers, the camera 5 to the negative electrode, called the cathode chamber, designed for running water; the dispenser 6 for the introduction of water to the anode chamber of salts of sulfuric acid; the dispenser 7 for the introduction of water to the anode chamber of the powder amphoteric silicates of the montmorillonite, kaolinite (anoxia), halloysite, beidellite, nontronite, talc, pyrophyllites, one of them, or in arbitrary mixtures thereof dispenser; device 8 for the introduction of in the anode chamber of the bath and deducing from it the wool fibers, the dewatering of the fiber fixture 9.

Specified in the formula limits the values of the processing parameters selected for the following reasons. A number of salts of sulfuric acid in the range of 5-20 g/l is necessary and enough of them formed in the anode chamber of the bath of sulfuric acid concentration 3-7,5%, is necessary and sufficient for the process of carbonization; the minimum amount of powder amphoteric binder 1 g/l is necessary and sufficient for the carbonization of tissue at the maximum voltage on the electrodes 35, the minimum exposure time of the wool fibers in the acid solution for 10 min, the maximum amount of powder aluminosilicates 30 g/l it is odimo enough to carbonization at a minimum voltage on the electrodes 5, maximum holding time of the processed material in the anode chamber of the bath 25 minutes

Example 1. Tub 1 for carbonization of the compound is divided into two chambers in the ratio of their volumes of 1:20 by a partition 2 of plastic with a thickness of 0.005 m with through holes with a diameter of 0.0005 m, with a step 0005 m, both cameras are about the opposite side of the tub injected graphite electrodes 3 and the camera 4 with the positive electrode, called the anode chamber, is designed for impregnation and extracts wool fibers in an aqueous solution of sulfuric acid concentration of 5%, and the camera 5 to the negative electrode, called the cathode chamber, designed for running water, sulfuric acid is formed in the anode chamber after loading in she dispenser 6 copper sulphate in an amount of 10 g/l, and submit to the electrodes, the electrical potential difference value of 20, the same anode chamber and injected dispenser 7 powder montmorillonite in the amount of 15 g/l, the device 8 download woolen fibers in the anode chamber 4, maintain the fibers at a temperature of 22°C for 15 min, unload device 8 fibers from the bath, squeezed fiber up to 90% of sulfuric acid by the device 9, the dried fibers at a temperature of 80°To conduct heat treatment at a temperature of 105°C for 5 min, again loads of wool ox is the Korean people's army into the bath fixture 8, washed with cold water, neutralized residues of sulfuric acid in a 2%solution of sodium acetate, washed fiber cold water, unloaded fibers from the bath device 8, the press device 9.

Due to the absence of the proposed device, the storage, piping, valves for loading into a bath of concentrated sulphuric acid, the construction of the device is simplified, reduced in size twice. When using the proposed method in the bath injected salt, instead of sulfuric acid, which reduces the carbonization process in comparison with the method of the prototype, improves safety conditions and duration of the carbonization process is reduced more than two times, which further reduces the process of carbonization of the fibers.

Using the proposed method and device for its implementation can significantly increase the efficiency, reduce the time of carbonization, to reduce energy and total costs; the absence of the proposed device, the storage, piping, valves for supplying a metered quantity of concentrated sulfuric acid in the bath for carbonization, which are device-prototype, greatly simplifies and reduces the size of the device, reduces the process of carbonization of the fibers and improves t is hniqu safety during implementation of the method on this device.

1. The method of carbonization of wool fibers, including pouring water into the tub, loading wool fibers in a bath impregnation and tenacity of wool fibers 3-7,5%aqueous solution of sulfuric acid at a temperature of 20-25°, centrifuge up to 70-100%, drying at a temperature of 70-90°C, heat treatment at a temperature of 100-115°C for 3-7 min, rinse with cold water, the neutralization of the residual acid in the fibers in 2%solutions of soda, ammonia or sodium acetate and incremental leaching, discharge from the bath, characterized in that the bath is divided into two chambers by a partition having the properties of the fine filter water, is introduced into both chambers of the bath electrodes in the camera baths with a positive electrode, called the anode chamber, introducing salt of sulfuric acid in the amount of 5-20 g/l, powder amphoteric silicates: montmorillonite, kaolinite, halloysite, beidellite, nontronite, talc, pyrophyllite in the amount of 1-30 g/l, one of them, or in arbitrary mixtures thereof, serves on the electrodes, the electric potential difference value 5-35, download woolen fibers in the bath, soak them in for 10-25 minutes

2. The device for implementing the method of carbonization of wool fibers, comprising a tub, a device for feeding into the tub and out of the bath wool fibers, the dewatering fabric device, characterized in that the Anna contains the partition, having the properties of the fine filter water that shares a bath with two cameras, both cameras are electrodes, and Luggage with a positive electrode, called the anode chamber, is designed for soaking and soaking in her woolen fibers in a solution of sulfuric acid, and the cathode chamber is designed to contain the flow of water, the device also includes advanced dispenser in water baths salts of sulfuric acid, the dispenser of introducing into the bath powder amphoteric silicates: montmorillonite, kaolinite, halloysite, beidellite, nontronite, talc, pyrophyllite, one of them, or in arbitrary mixtures thereof.



 

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The invention relates to a device for liquid treatment of textile fibers, and in particular to equipment for processing wool fibres, in particular equipment for carbonization of wool fibers

FIELD: textile industry, in particular, carbonization of wool fibers, may be used in preliminary wool fiber or yarn dyeing operations.

SUBSTANCE: method involves dividing bath into two chambers by means of partition having properties of fine filter for cleaning of water; introducing electrodes into both bath chambers; filling bath with water; introducing sulfites into bath chamber with positive electrode identified as anode chamber in an amount of 5-20 g/l, powder of amphoterous aluminosilicates: montmorillonite, kaolinite (anauxite), halloysite, beidellite, nontronite, talc, pyrophyllite in an amount of 1-30 g/l, one of said aluminosilicates, or random mixture thereof; supplying electric potential difference of 5-35 V to electrodes; charging wool fibers into bath; impregnating and holding wool fibers at temperature of 20-25 C during 10-25 min in 3-7.5%-aqueous solution of sulfuric acid; squeezing fibers to 70-100%; drying at temperature of 70-90 C; providing thermal processing at temperature of 100-115 C during 3-7 min; rinsing in cold water; neutralizing acid residues in fibers in 2%-solutions of sodium carbonate, ammonia or sodium acetate; additionally rinsing and discharging from bath.

EFFECT: reduced sizes and production costs of apparatus and increased carbonization effectiveness.

3 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; 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; the following components are added into water of the first chamber (g/l): salts of sulfuric acid 50-125 g/l, powder of aluminium silicates 5-30 vol. %, creating dispersion mixture (DM); wool fibres are loaded into the first chamber; DC voltage is supplied to electrodes, developing intensity of electric field with value of 50-200 V/m; besides potential applied to cathode is 5-20 times less than potential applied to anode. Wool fibres are impregnated and soaked for 10-25 minutes; at the same time DM is mixed, as well as water in the second chamber; fibres are discharged from chamber, squeezed, dried; thermal treatment is carried out at 100-110C, charged into the first chamber, washed with cold water, remains of sulfuric acid are neutralised in fibres in 2% solutions of soda, or ammonia or acetous sodium, again washed, discharged from the first chamber, 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 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. The following components are added into water of the first chamber (g/l): salts of sulfuric acid 5-30, dye 30-50, powder of aluminium silicates 5-20 vol. %, producing a dispersion mixture (DM). Fibrous materials are charged into the first chamber; 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 cathode is 5-20 times less than potential applied to anode. Fibrous materials are soaked at the temperature of 100C for 0.3-0.6 hr; DM is mixed in the first chamber. Water is mixed in the second chamber. Fibrous materials are washed, discharged from the first chamber, squeezed.

EFFECT: reduced dimensions of device, lower production costs.

2 cl, 1 dwg

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