Method of manufacture the leather

 

(57) Abstract:

The method relates to the manufacture of leather. Last time it is greased and hydrophobizing as follows. On 100 wt.h. the product obtained by vitaliana fat and kollagensoderzhaschego waste from the membrane and trimmings, enter 1.0 to 5.0 wt. including sulfuric acid and 10-100 wt.h. poly(organo)silazane. The resulting preparation in quantities of 0.5 to 6.5% by weight of the semifinished product is applied on its surface and is subjected to vibration treatment within 2-4 min at a frequency of 1-10 Hz. The method provides simultaneous tanning, filling, greasing and hydrophobic leather. table 2.

The invention relates to light industry and can be used in the production of leather and fur.

Know the application of various fats for suede tanned skin fats of marine animals (chemistry and technology of leather and fur, edited by I. P. Strakhov, publisher L. I., 1979, page 223, 350).

Water and greasing properties give the leather a poly(alkoxy)(acyloxy)silsesquioxane obtained by condensation of a poly(alkoxy)silsesquioxanes with higher fatty carboxylic acids (RF Patent 2034867).

The main disadvantages of existing processes obrabotatb, with tanning, filling and fattening properties and implement ecologically sophisticated technology.

The aim of the invention is to obtain new classes of ORGANOMETALLIC compounds on the basis of waste products in the form of scrapings and trimmings to obtain drugs with tanning, filling, oiling and gidrofobiziruyuschimi properties.

This goal is achieved by the fact that 100 massin parts of the product obtained by vitaliana fat and kollagensoderzhaschego waste from the membrane and trimmings enter 1.0 to 5.0 wt. parts of sulfuric acid and 10 -100 wt. parts of the poly(organo)silazane received the drug in the amount of 0.5 -6,5% by weight of the semifinished product is applied on its surface and is subjected to vibration treatment for 2-4 minutes at a frequency of 1 to 10 Hz.

The advantage of the proposed method is the possibility of environmentally perfect synthesis of new classes of ORGANOMETALLIC substances directly in production, including the site of synthesis in a single process of the leather and fur with the use of recyclable waste in the form of scrapings and trimmings. This gives the opportunity to predict the properties of finished products with simultaneous assessment of costs in monetary terms through Swee vibrating machine IPC - 01 lets go to namesnow, waste-free technology that radically changes the main production processes of manufacture.

The method is as follows. Of waste from meskene and trimmings heated with the product, which is filtered and sent to the reactor where add the calculated amount of sulfuric acid, and then poly(organo)silazane General formula:

< / BR>
where R= CH3C2H5CH=CH2C6H5;

m = 1-3; n = 15-20

The process of obtaining a new drug conducted at a temperature of 90-130oC under stirring.

The ratio of the components for the synthesis are given in table.1.

The resulting synthesis of drugs had calopogonium view from yellow to dark brown in colour with a characteristic ester odor. The drug is put on the fur sheepskin, tanned single technology, including the operation of pickling. Then put Namazi and subsequent vibrohvostami at various frequencies of a certain time. Further the sheepskin processed by known techniques.

The specific examples of the method of processing the semi-finished new drugs are listed in the table.2.

From table. 2 it follows that the new application is not putting processed hair, that contribute to the preservation of its natural properties. The rate of namakemono when processing new drugs have improved. The rest of the studied indicators meet the requirements. This indicates that concentrations for the synthesis of the drug selected is true.

Treatment frequency and duration are optimal and limited technical capabilities of the equipment.

Consumption of the drug was determined by achieving the required values of temperature for welding of prefabricated and achieving the required values of physico-mechanical characteristics.

Method of manufacture the leather, including simultaneous greasing and hydrophobicity in the introduction to her silicone product, characterized in that per 100 wt.h. the product obtained by vitaliana fat and collagen containing waste from the membrane and trimmings, enter 1.0 to 5.0 wt.h. sulfuric acid and 10 to 100 wt.h. poly(organo)silazane and the resulting preparation in quantities of 0.5 to 6.5% by weight of the semifinished product is applied on its surface and is subjected to vibration treatment within 2 to 4 minutes at a frequency of 1 - 10 Hz.

 

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Method of finishing // 2127763
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