{"id":7923,"date":"2021-08-31T18:54:19","date_gmt":"2021-08-31T15:54:19","guid":{"rendered":"http:\/\/journals.khnu.km.ua\/vestnik\/?p=7923"},"modified":"2021-09-29T15:09:03","modified_gmt":"2021-09-29T12:09:03","slug":"formuvannya-pokaznykiv-yakosti-shkir-riznyh-vydiv-shkiryanoyi-syrovyny-iz-vykorystannyam-montmorylonitu","status":"publish","type":"post","link":"https:\/\/journals.khnu.km.ua\/vestnik\/?p=7923","title":{"rendered":"\u0424\u043e\u0440\u043c\u0443\u0432\u0430\u043d\u043d\u044f \u043f\u043e\u043a\u0430\u0437\u043d\u0438\u043a\u0456\u0432 \u044f\u043a\u043e\u0441\u0442\u0456 \u0448\u043a\u0456\u0440 \u0440\u0456\u0437\u043d\u0438\u0445 \u0432\u0438\u0434\u0456\u0432 \u0448\u043a\u0456\u0440\u044f\u043d\u043e\u0457 \u0441\u0438\u0440\u043e\u0432\u0438\u043d\u0438 \u0456\u0437 \u0432\u0438\u043a\u043e\u0440\u0438\u0441\u0442\u0430\u043d\u043d\u044f\u043c \u043c\u043e\u043d\u0442\u043c\u043e\u0440\u0438\u043b\u043e\u043d\u0456\u0442\u0443"},"content":{"rendered":"

<\/p>\n

\u0424\u041e\u0420\u041c\u0423\u0412\u0410\u041d\u041d\u042f \u041f\u041e\u041a\u0410\u0417\u041d\u0418\u041a\u0406\u0412 \u042f\u041a\u041e\u0421\u0422\u0406 \u0428\u041a\u0406\u0420 \u0420\u0406\u0417\u041d\u0418\u0425 \u0412\u0418\u0414\u0406\u0412 \u0428\u041a\u0406\u0420\u042f\u041d\u041e\u0407 \u0421\u0418\u0420\u041e\u0412\u0418\u041d\u0418 \u0406\u0417 \u0412\u0418\u041a\u041e\u0420\u0418\u0421\u0422\u0410\u041d\u041d\u042f\u041c \u041c\u041e\u041d\u0422\u041c\u041e\u0420\u0418\u041b\u041e\u041d\u0406\u0422\u0423<\/p>\n

FORMATION OF LEATHER QUALITY INDICATORS OF DIFFERENT TYPES OF LEATHER RAW MATERIALS WITH THE USE OF MONTMORILONITE<\/p>\n

\u0421\u0442\u043e\u0440\u0456\u043d\u043a\u0438: 136-142. \u041d\u043e\u043c\u0435\u0440: \u21163, 2021 (297)<\/strong> \"\"<\/a>
\n\u0410\u0432\u0442\u043e\u0440\u0438:<\/strong>
\n\u041c. \u041f. \u0416\u0410\u041b\u0414\u0410\u041a, \u041d. \u0412. \u041c\u0415\u0420\u0415\u0416\u041a\u041e, \u0412. \u0410. \u041e\u0421\u0418\u041a\u0410
\n\u041a\u0438\u0457\u0432\u0441\u044c\u043a\u0438\u0439 \u043d\u0430\u0446\u0456\u043e\u043d\u0430\u043b\u044c\u043d\u0438\u0439 \u0442\u043e\u0440\u0433\u043e\u0432\u0435\u043b\u044c\u043d\u043e-\u0435\u043a\u043e\u043d\u043e\u043c\u0456\u0447\u043d\u0438\u0439 \u0443\u043d\u0456\u0432\u0435\u0440\u0441\u0438\u0442\u0435\u0442
\nMARYNA P. ZHALDAK, NINA V. MEREZHKO, VICTOR A. OSYKA
\nKyiv National University of Trade and Economics
\nDOI:<\/strong>\u00a0https:\/\/www.doi.org\/10.31891\/2307-5732-2021-297-3-136-142<\/a>
\n\u041d\u0430\u0434\u0456\u0439\u0448\u043b\u0430 \/ Paper received :\u00a0 <\/strong>18.05.2021 \u0440
\n\u041d\u0430\u0434\u0440\u0443\u043a\u043e\u0432\u0430\u043d\u0430 \/ Paper Printed : <\/strong>30.06.2021 \u0440<\/p>\n

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\n\u041a\u043b\u044e\u0447\u043e\u0432\u0456 \u0441\u043b\u043e\u0432\u0430:<\/strong> \u0448\u043a\u0456\u0440\u044f\u043d\u0430 \u0441\u0438\u0440\u043e\u0432\u0438\u043d\u0430, \u043f\u043e\u043a\u0430\u0437\u043d\u0438\u043a\u0438 \u044f\u043a\u043e\u0441\u0442\u0456,\u0448\u043a\u0456\u0440\u0430 \u0434\u043b\u044f \u0432\u0435\u0440\u0445\u0443 \u0432\u0437\u0443\u0442\u0442\u044f, \u043c\u043e\u043d\u0442\u043c\u043e\u0440\u0438\u043b\u043e\u043d\u0456\u0442<\/p>\n

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The tanning process is important in stabilizing the collagen structure of the derma. \u0421hrome tanning is the traditional option. The basic chromium sulfate is used in the production of 80% of leather in use. A peculiarity of chromium tanning turns out to be an inefficient use of chromium compounds, since almost 40% of tannins remain in wastewater. Considering the disadvantages of using chromium compounds, scientific research on the replacement and use of rather eco-friendlier substances has been conducted for a long time.
\nOne of the directions of ecologization of leather manufacturing is the use of modified montmorillonite dispersions in various technological processes such as tanning, filling, dyeing, fat-liquoring, etc. Researches have been aimed at identifying the feasibility of making leather for the uppers of children’s shoes from different types of leather raw materials using modified dispersions of montmorillonite at the stage of tanning.
\nAccording to the technology of making leather, cattle (medium heifer), goat and sheep skins were used for the upper of the shoes.
\nThe analysis of leather quality indicators from different types of raw materials obtained with the use of chromefree tanning. It is proved that hides from raw materials of goats and sheepskins in comparison with cattle are characterized by increased yield area by 3.5-7.2 %, thickness by 0.8-2.6 %, volume yield by 4.5-6.1 % and uniformity of quality indicators in different topographic areas. The level of indicators of physical and mechanical, hygienic properties and chemical composition of leather of different types of raw materials is almost identical within the requirements of regulatory documents. It is advisable to use for children’s shoes leather from raw goat and sheepskin given the peculiarities of the manufacture of children’s shoes, dimensional characteristics of parts, requirements for dimensional stability and shape conservation.
\nKey words:<\/strong> leather raw materials, quality indicators, leather for shoe uppers, montmorillonite.<\/p>\n

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