Method of treatment of the furry semi-finished product

FIELD: light industry; methods of treatment of the furry semi-finished products.

SUBSTANCE: the invention is pertaining to the field of light industry, in particular, to the method of treatment of the furry semi-finished products. The furry semi-finished product is treated with the low-temperature plasma in the vacuum chamber under pressure of 25-30 Pa in the medium of the argon gas. The treatment is conducted at the oscillator frequency of 13.56 MHz, with the current strength on the anode of the oscillation valve of 0.65-0.8 A within plasma action time of 3-5 minutes and at the rate of argon consumption of 0.03-0.05 g/s. The technical result of the invention is reduction of the fur abradability, the increased strength of bonding of the fur side with the skin tissue and strength of a hair at stretching.

EFFECT: the invention ensures reduction of the fur abradability, the increased strength of the fur side pelage with the skin tissue and strength of the fur at stretching.

1 tbl

 

The invention relates to the fur industry and can be used for comprehensive improvement of operational properties of fur semi-finished product.

A method of processing of fur skins of muskrats on the stages of manufacture for improving the bond strength of hair with Koshevoy tissue and weight reduction skins, different from the conventional technology in that when the : soaking off impose additional probiotic preparation on the basis of the oxygen-containing cyclic terpenes General formula SNO in the amount of 40-50 g/l and implement 13-14 hours as an organic acid using acetic acid or a mixture of acetic and formic (RF patent No. 2142514, With 14 1/04).

There is a method of finishing of fur rabbit hides in the dryer on operation haulage using ethyl silicate in the amount of 3-7% by weight of the skins, with the inner surface of the drum is made from a multilayer polymeric materials to ensure the generation of static electricity by friction. When this occurs, the increase in strength of the tuft of hair on the gap in average by 20% (RF patent No. 2109060, With 14 In 15/04).

The disadvantage of these methods is the use of chemical reagents, leading to chemical changes in the natural structure of hair and its destruction, which reduces the physical-mechanical properties of fur, in particular increases the abrasion hair, deteriorating the strength of the hair.

Despite compliance with overall product quality Standards, some types risksafety mechs have such disadvantages as teclast, increased abrasion hair, loose the leather, etc. These defects are manifested as a rule, during the operation of the product, which significantly reduces consumer value.

There is a method of influence on the leather low temperature plasma of high-frequency discharge in a vacuum chamber for 5-10 min at a pressure of 53.3 per-80,0 PA, the flow rate of plasma-generating air-0.04-0.06 g/s and current at the anode generator lamp of 0.2-0.6 And to improve the quality and adhesion of the coating to the skin and also increase the resistance of the coating to repeated bending (RF patent No. 2127763, With 14 9/00).

The disadvantage is the use of the effects on the leather low-temperature high-frequency plasma discharge in the process of leather manufacture, which involves making changes to the standard technology of leather manufacture.

There are ways to improve the physico-mechanical and aesthetic properties of the fur mainly connected with the conduct of special treatments during manufacture or finishing, each of which is aimed at achieving concrete of the specified effect. The disadvantage of these spoolbases, they do not allow to improve the performance properties of fur semi-finished product. In addition, with the improvement of one indicator often occurs deterioration of other properties of fur.

The closest analogue is the way hairline finish for improving the performance properties of the coating metal (zinc, Nickel, brass, aluminum and others) under pressure is directed on a metal target flow of ions generated by electron or laser beam or low temperature plasma glow discharge in the environment of the working gas (nitrogen, argon, air). The sustainability of the fur mink to friction is increased by 16%, Karakul skins by 18% (application for invention of the Russian Federation No. 92014388 from 10.9.95, D 06 Q 1/04).

The disadvantage of this method is the use of toxic substances and chemical changes of the natural hair structure.

As well as the limited application range of impact parameters to improve other mechanical characteristics: tensile strength tensile, ductility, hardness, elongation leather, etc. that determine the quality of the skin and its purpose.

The technical result is to increase the quality and lifetime of fur through a comprehensive improvement of operational properties of fur semi-finished product.

This result is achieved by the fact that the bellows is th intermediate product is exposed to low temperature plasma of high-frequency discharge under pressure of 25-30 PA, frequency generator of 13.56 MHz, the power current to the anode generator lamp 0,65-0,8 And, at the time of exposure to plasma 3-5 min and the flow rate of argon 0.03-0.05 g/S.

The method is as follows: fur prefabricated nutria after final finishing is placed in a vacuum chamber of a plasma installation. Produce the pumping of air from the vacuum chamber, and then putting the working gas adjustment valve set pressure within 25-30 PA, include RF generator, the frequency generator of 13.56 MHz. The surface modification is carried out with the use as a plasma gas argon. Under the action of electromagnetic fields is heated plasma gas to a plasma. The plasma processing modes adjust by changing the current of 0.65-0.8 a, plasma gas flow of argon 0.03-0.05 g/s and time of exposure to plasma 3-5 minutes

In the basis of plasma technology is the impact of positive ions formed in the discharge. Fur semi-finished product, is introduced into the low-temperature plasma of high-frequency discharge, acquires a negative potential relative to the plasma and is bombarded with ions of the plasma gas. As a result of complex interrelated processes of energy, mass and charge exchange between plasma particles and material change occurs with the touch and properties of surface layers of fur semi-finished product without any chemical changes in the composition of the hair. As a result of physical modifications is the restoration of the structure of hair and the leather, resulting in improved stability fur semi-finished product to mechanical stress and to increase the operation life of the finished product.

The research results of the proposed method of processing fur semi-finished product nutria and indicators of physical and mechanical properties are shown in table 1.

Table 1
The processing modesIndicators of physico-mechanical properties of the samples treated with low temperature plasma of RF discharge
Abrasion hairline, %The bond strength of the hair with Koshevoy cloth NThe strength of the hair under tension, H
Current And
0,512,32,910,633
0,654,783,1851,224
0,87,253,8651,054
0,959,742,690,273
The gas flow rate, g/s
0,029,742,880,633
0,034,783,791,224
0,057,253,8651,036
0,069,82of 2.510,51
The exposure time, min
110,822,910,633
37,253,1851,016
54,783,8651,224
79,743,10,51
The chamber pressure, PA
254,78to 3.6571,165
26,55,013,8651,224
307,253,1851,016
Prototype (not treated plasma sample)9,362,980,744

The optimal regime for processing fur semi-finished product is the impact of plasma within 3-5 min, at a flow rate of plasma gas argon 0.03-0.05 g/s, the force of the current on the anode generator lamp of 0.65-0.8 a and the pressure in vakuumpakkere 25-30 PA. The method of processing fur semi-finished product beyond the boundaries of these values leads to the degradation of physical and mechanical properties: decreases the strength of the hair under tension, increases abrasion hair, hair becomes brittle, dull.

Analysis of the results of the experiment showed that plasma effects, under certain parameters, increases the resistance of fur semi-finished nutria to friction 48.9-77%, the strength of the hair under tension on 37-64,5%, compared with untreated fur. Also found that when using this method increases the strength of hair with Koshevoy cloth 6.9-29,7%. This makes it possible to increase the life of the product with increased teclast hair 3-4 times and use the skins of lower quality, thereby expanding the raw material base of the fur industry. In addition, there is a decrease of cinemati, suolakivenkatu hair, a mass of fur skins. There is an increase in gloss, light fastness of the color of the fur on the points that affect the aesthetic properties and the appearance of fur. The increase of the plastic elongation of the leather to 56%, which will increase the useful area and change in different directions, the configuration and size of the skins in progress furrier works.

Thus the m plasma processing can significantly improve the quality of the fur products by improving complex physico-mechanical properties of fur semi-finished product, but also opens up new possibilities on the way to the creation of new environmentally friendly technologies.

The method of processing fur semi-finished product using a low-temperature plasma of high-frequency discharge in a vacuum chamber in the presence of argon gas, wherein the treatment is carried out by low-temperature plasma in a vacuum chamber under a pressure of 25-30 PA, frequency generator of 13.56 MHz, the power current to the anode generator lamp of 0.65-0.8 And at the time of exposure to plasma 3-5 min and the flow rate of argon 0.03-0.05 g/S.



 

Same patents:

FIELD: textile industry.

SUBSTANCE: invention relates to technology of manufacturing flame retarded textile materials, which may be used as filler when manufacturing flame retarded composites and decorative and finishing textile materials. Method of invention comprises applying burning retardant, namely Antipyrene T-2 (methylphosphonamide ammonium salt) onto polycaproamide or polyethylene terephthalate fiber, retardant being used in the form of 5-7% aqueous solution. Fiber is the additionally exposed for 25-30 sec to 350 W CO2-laser emission. Treated fiber contains 22-25% Antipyrene T-2 and is characterized by oxygen index: 35% (polycaproamide) and 42.5% (polyester fiber). Strength of fibers is slightly increased.

EFFECT: substantially increased fire resistance of textiles.

1 tbl, 32 ex

FIELD: textile industry.

SUBSTANCE: invention relates to technology of manufacturing flame retarded textile materials, which may be used as filler when manufacturing flame retarded composites and decorative and finishing textile materials. Method of invention comprises applying burning retardant, namely Antipyrene T-2 (methylphosphonamide ammonium salt) onto polycaproamide or polyethylene terephthalate fiber, retardant being used in the form of 5-7% aqueous solution. Fiber is the additionally exposed for 25-30 sec to 350 W CO2-laser emission. Treated fiber contains 22-25% Antipyrene T-2 and is characterized by oxygen index: 35% (polycaproamide) and 42.5% (polyester fiber). Strength of fibers is slightly increased.

EFFECT: substantially increased fire resistance of textiles.

1 tbl, 32 ex

FIELD: textile industry.

SUBSTANCE: invention relates to technology of manufacturing flame retarded textile materials, which may be used as filler when manufacturing flame retarded composites and decorative and finishing textile materials. Method of invention comprises applying burning retardant, namely Antipyrene T-2 (methylphosphonamide ammonium salt) onto polycaproamide or polyethylene terephthalate fiber, retardant being used in the form of 5-7% aqueous solution. Fiber is the additionally exposed for 25-30 sec to 350 W CO2-laser emission. Treated fiber contains 22-25% Antipyrene T-2 and is characterized by oxygen index: 35% (polycaproamide) and 42.5% (polyester fiber). Strength of fibers is slightly increased.

EFFECT: substantially increased fire resistance of textiles.

1 tbl, 32 ex

The invention relates to chemical technology of fibrous materials, in particular to maomineena finishing of fabrics, and can be used in the textile industry
The invention relates to a method of cleaning textile materials and articles thereof using the energy of the microwave field
The invention relates to the field of protection against chemical warfare agents, namely the protection of physiologically active substances army uniforms
The invention relates to the field of protection against chemical warfare agents, namely the protection of physiologically active substances army uniforms

The invention relates to the textile industry, can be used in the bleaching or dyeing charlesdarwin textile materials

The invention relates to compositions for imparting antimicrobial properties to textile materials and can be used for special medical materials

FIELD: light industry; leather and fur branches; series processes such as soaking process, washing, pickling, tanning and dyeing.

SUBSTANCE: proposed method includes cyclic evacuation and mixing the working solution with raw material; rate of pressure drop which is within 0.3-0.9 bar/s exceeds rate of its increase and frequency of pressure fluctuations lies in field of infra-red spectrum; mixing is performed by ordered motion of raw material in working solution. Device proposed for realization of this method is made in form of closed thermostable reservoir mounted on base and provided with casing, movable rotor, loading shaft, discharge chamber, temperature indicator, liquid chemical supply valve, drain valve and preheating and evacuation systems. Preheating system includes delivery of heat agent to movable rotor and preheating of working solution through wall of rotor; mounted on external surface of rotor are cassettes with raw material. Evacuation system is isolated from working solution by means of elastic membrane; loading shaft performs function of discharge chamber.

EFFECT: improved quality; reduced duration of process; saving of chemicals; enhanced ecological safety; cut costs.

3 cl, 3 dwg

FIELD: tannery or furry production.

SUBSTANCE: the invention is pertaining to the field of tannery or furry production and may be used for a piece by piece treatment of a tanning, furry semi-finished product with emulsions of "water in oil" type. The device for impregnation of sheets contains a mounted on the frame bath with a working compound, in which a corrugated roller is dipped, and also a feeding and auxiliary conveyers and a smoothing roller, a supporting means with a resilient counterbody, an actuator, a tool for removal of a finished semi-product, a device for creation of a hydrodynamic wedge and a pinch roller for engagement of the ribbed roller with the feeding conveyor. The problem of the presented invention is - development of the device simple in its servicing with a high reliability allowing to realize the process of impregnation more efficiently with a possibility of its installation in an automatic production line.

EFFECT: the invention presents a device simple in its servicing, having a high reliability, more efficient realization of the process of impregnation, a possibility of its usage in an automatic production line.

2 dwg

FIELD: leather industry.

SUBSTANCE: method involves spreading skin on respective carrier plates and introducing carrier plates with skin spread thereon into vessel; hermetically sealing vessel and creating low pressure therein; introducing liquid solution into vessel for treatment of skins to wet state; transmitting vibrations to vessel in order to provide continuous and uniform movement of treating solution contained in vessel. According to another version, method involves cleaning animal skin by introducing aqueous solution containing hydrogen peroxide and sodium hydroxide into vessel. Apparatus has number of plates on which leathers are spread, hermetically sealable vessel into which plates with skins spread thereon are introduced, device for creating low pressure in said vessel, at least one mixing reservoir for introducing therein of water and respective active substances for the purpose of producing liquid solution for skin treatment. Mixing reservoir is adapted for communication with hermetically sealable vessel, wherein low pressure is maintained for introducing therein of liquid solution, and vibratory member for transmitting vibrations to vessel for providing continuous and uniform movement of liquid solution introduced into hermetically sealable vessel.

EFFECT: reduced unfavorable effect upon environment of skin treatment procedure, in particular, elimination of necessity for utilization of chemicals, simplified, useful and compact construction of apparatus.

8 dwg

The invention relates to leather and fur industry and is aimed at improving devices for liquid processing leather and fur raw materials and semi-finished products at the enterprises of light industry

The invention relates to fur production and can be used with hairline finish furs

The invention relates to leather manufacture, and can be used for the production of leather for the top and bottom shoes

The invention relates to the fur industry, namely the lines tanning of fur raw materials in Cyrano-dyeing workshops

The invention relates to a process of preserving the skins of animals and can be used in meat processing plants and slaughterhouses as a method and device for the preservation of raw hides
Up!