Composition for degreasing of sheepskin fur

 

(57) Abstract:

This composition can be used in fur production in degreasing fur sheepskin. Composition for degreasing fur sheepskin includes a nonionic surface-active agent (surfactant) and bacterial drug. The composition further comprises a prokaryotic culture of Pseudomonas species. As bacterial drug use bacterial drug lipolytic and proteolytic properties produced by culture of Pseudomonas species. As the nonionic surfactants used Prevotella W-OF-7. The composition has the following ratio of components: non-ionic surfactants, Prevotella W-OF-7 0.5-1 g/DM3bacterial drug 1-2 g/DM3and prokaryotic culture of Pseudomonas species in quantity of 105-107cells/cm3. table 4.

The invention relates to light industry and can be used in fur production during the process of degreasing hair and the leather and fur skins.

Known composition for degreasing fur sheepskin, containing the sodium salt of monoether sulfuric acid and the mixture of cetyl and oleic alcohol, sodium carbonate, formalin, hydrogen peroxide is on composition, that when it is used simultaneously with chemical and enzymatic degradation of wool fat is weakening due hairline with Koshevoy cloth sheepskin, which leads to teclast hair.

The closest (prototype) to the proposed technical solution is the composition for degreasing of sheepskins, including anion active surfactants, formaldehyde, sodium carbonate, nonionic surfactant, proteolytic enzyme preparation steps, it G3X and water (see Komissarova, L. A., Shestakova I. C. Application of enzymes and a surfactant for cleaning and degreasing fur sheepskin // Leather and footwear industry, 1984, N9, S. 50-53).

The disadvantage of this composition is the use of dietary insoluble nonionic surfactants and formalin difficult to clean wastewater and reduce the activity of protocolin G3X. The use of proteolytic enzyme preparation steps of protocolin G3X not only leads to the destruction of wool fat, but also can affect mucopolysacharides complex, located in the basal membrane of the hair bags, destroying it, which can lead to the weakening of bonds of the hair with Koshevoy cloth.

The technical result is camping wastewater.

The technical result is achieved in that the composition for degreasing fur sheepskin, comprising nonionic surfactant and bacterial preparation further comprises a prokaryotic culture of Pseudomonas sp., in the following ratio, g/DM3:

Prevotella W-OF-7, nonionic surfactants, 0.5 to 1

Bacterial preparation (BP) 1-2

Prokaryotic culture

Pseudomonas species 105-107cells/cm3

In addition, the technical result is achieved due to the fact that bacterial product (BP) is produced by prokaryotic culture of Pseudomonas species and can be used for achieving concentrations in the environment within 1-2 g/DM3.

A distinctive feature of the proposed structure is that the processing of the fur sheepskin is carried out at a much reduced consumption of detergents from 8 to 0.5-1 g/DM3and the exception of sodium carbonate and formaldehyde. In addition, the bacterial preparation is produced by culture of Pseudomonas sp., has both lipolytic and proteolytic properties. This effect degreasing is ensured by the fact that after cleavage of the protein coat of the fat cells observed the breakdown of lipids to glycerol and fatty to the of organizmov Pseudomonas sp. this hydrolysis occurs more fully, with the involvement of the resultant products in a constructive and energy metabolism. Minimal presence in the composition of detergents allows you to remove mechanical impurity from the surface of the hair and reduce the level of toxic pollution of sewage.

Unpainted prefabricated sheepskin treated the proposed composition has a more clean and crisp hair than semi-finished processed by the composition of the prototype.

Conducted by the applicant's analysis of the prior art, including searching by the patent and scientific and technical information sources, and identify sources that contain information about the equivalents of the claimed invention, has allowed to establish that the authors have not identified the sources with characteristics identical with all the essential features of the claimed composition for degreasing fur raw materials. The definition from the list of identified unique prototype, which is closer to the totality of symptoms analogue, has allowed to establish the essential towards perceived by the applicant to the technical result of the distinctive features set forth in the claims.

Consequently, the offer from the of the fur sheepskin is prepared as follows.

Wool fat hair consists mainly of cholesterol, and for the destruction of such a complex fat you must use lipolytic enzymes, whereas the fat in the leather, enclosed in a protein shell that requires the use of enzymes as proteolytic and lipolytic action. In this regard, the proposed composition for degreasing contains bacterial preparation (BP) produced by culture of Pseudomonas sp., possessing not only lipolytic, and proteolytic activities.

Pre-prepared bacterial suspension is injected into the synthetic environment mineral bases, detergents, organic substances and culture of Pseudomonas sp. in the amount of 105-107cells/cm3that provides optimal receipt of the bacterial preparation. Duration of cultivation for 72 h with periodic mechanical impact and temperature (40±0,5)C.

As an organic substance use wool fat, and as a nonionic surfactant - Prevotella W-OF-7 in the amount of 0.5-1.0 g/DM3.

Culture of Pseudomonas sp., isolated from waste water after the process of emulsion degreasing fur sheepskin, predstavlyalka. On mesopatamia agar (MPA) colonies were large (d=4-5 cm), milky white, smooth, shiny surface, convex, translucent, slimy consistency. On mesopatamia broth (BCH) at incubation in a thermostat (390,5)C for 24 h gave good growth, while the formed thin uneven film milky color, slight flocculent precipitate, which is “know-how” for the authors of the present invention.

Technology of application of the composition are as follows. Party fur sheepskin, after soaking, degreasing I and mechanical operations, including cutting, mestena expose the second degreasing composition containing bacterial drug - 1-2 g/DM3, Prevotella W-OF-7 - 0.5-1.0 g/DM3and culture of Pseudomonas sp. - 105-107cells/cm3when liquid ratio of 7, a temperature of 40-42S and duration 60 minutes Further processes and operations are performed on a Single processing fur sheepskin (1988).

In the control variant (the prototype) was used, comprising: paste “News” - 8 g/DM3; sodium carbonate and 0.5 g/DM3and formaldehyde - 0.5 cm3/DM3.

Next, the processing of fur sheepskin ve is the air traffic management fur sheepskin is presented in table.1.

Reducing the consumption of the components of the proposed structure below the specified limits may result in incomplete removal of hair and the leather sheepskin. When the concentration of the components above the proposed limits of increasing the cost of treatment at similar effect degreasing.

Example. Party fur sheepskin treated for 60 min with (40-42)and volume ratio equal to 7. A control batch process of the prototype (see table.1). After 60 min, the solution is drained, and sheepskin wash out with clean water when (38-40)and J. K. 7 within 30 minutes Further processes and operations of manufacture is conducted according to a Single processing technology fur sheepskin (Grigoriev, B. S. and other processing Technology fur sheepskin. - M.: Createrepo, 1988. - 200 C.).

Indicators of chemical and physical analyses of comparable halves fur sheepskin, which characterizes the quality of the leather and fur processed skins, are presented in table.2.

As follows from the table.2, the objective indicators of sheepskin, processed using the proposed structure fully comply with the requirements of GOST 4661-76. In addition to takego composition of sodium carbonate and formaldehyde.

After the test and control degreasing were selected wastewater to assess their quality and level of toxic pollution. Evaluation of the quality of wastewater was carried out according to the following criteria: active reaction (pH); chemical oxygen demand (COD) and concentration of detergents. Characteristics of waste water after degreasing II are presented in table.3.

To assess the level of toxic pollution (UTZ) conducted a toxicity study of the water after the model and the developed techniques. As a test object used crustacean Daphnia magna Straus. Indicator of the degree of toxicity was the ratio of dilution, which persists acute toxic effects. The observation was carried out for 96 h, the first 3 h hourly, and then once a day, given the number of living individuals. For control options and for dilution of wastewater used tap water after settling for 24 hours, the Survival rate in the control variant after 96 h was 100%. The result is presented in table.4.

As can be seen from the table.3 and 4, the waste water after degreasing, made by the developed technique based on the use of bacteraemia composition for degreasing fur sheepskin allows optimal removal of fatty substances from the surface of the fur and leather fur sheepskin. While the resulting wastewater can be classified as moderately polluted by reducing the consumption of detergents, elimination of sodium carbonate and formaldehyde and used for degradation of fatty substances of bacterial drug produced by culture of Pseudomonas sp.

The characteristics of sheepskin fur tanned correspond the requirements of GOST 4661-76.

On the basis of the foregoing that the inventive composition for degreasing of sheepskin and fur raw materials meets the condition of “industrial applicability”.

Composition for degreasing fur sheepskin, including nonionic surface-active agent (surfactant) and bacterial drug, wherein the composition further comprises a prokaryotic culture Pseudomonas species, as well as bacterial drug use bacterial drug lipolytic and proteolytic properties produced by culture of Pseudomonas species, as nonionic surfactants used Prevotella W-OF-7 in the following ratio of the components:

Nonionic surfactants - Prevotella W-OF-7 0.5-1 g/DM3

Bacterial drug 1-2 g/DM3

Prokaryotic culture


 

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