Chemical nature of dye interaction when dying fur sheepskin

   The article substantiates the use of active dyes with vinylsulfone and chlorotriazine groups in leather and fur production in order to obtain fur sheepskin with an improved set of consumer properties. The kinetic regularities of the processes of diffusion, fixation and hydrolysis of active dyes have been studied. This makes it possible to increase the efficiency of the process of dyeing fur sheepskin and the completeness of the use of active dyes. In monofunctional active bright blue 53Sh, only 56.7 % of 72.2 % of the total amount of sorbed dye is fixed by covalent bonds, in mono-bifunctional active brown - 65.9 % of 73.7 %, in hetero-bifunctional active bright red 5CX - 71.6 % of 77.1 %. The anomalous nature of the chemical reactions of active dyes with water and with woolen fiber has been established. The practical significance lies in the development of theoretical foundations for predicting changes in the degree of fixation and the efficiency indicator of the process of dyeing fur sheepskin under the influence of temperature, pH and other factors.

1. Gajnutdinov R. F. Razvitie effektivnogo processa krasheniya mekhovyh tovarov /R. F. Gajnutdinov, F. S. Sharifullin, I. Sh. Abdullin, A. P. Kirpichnikov // Vestnik Kazanskogo tekhnologicheskogo universiteta. 2014. № 14. Rezhim dostupa: https://cyberleninka.ru/article/n/razvitie-effektivnogo-protsessa-krasheniya-mehovyh-tovarov. (in Russ)

2. Grigoriev B. S. New technologies for processing fur raw materials based on chemical materials of JSC NIIMP, the development of the fur industry in Russia / Abstracts of the V Interregional scientific and practical conference / B. S. Grigoriev, L. A. Komisarova, L. L. Shchegoleva. - M. – 2003. – 64 p. (in Russ)

3. Grigor'ev B. S. Himicheskie materialy i tekhnologii obrabotki pushno-mekhovogo i ovchinno-shubnogo syr'ya. - M. 2006 g. 37. patent 2170262. (in Russ)

4. Sposob obrabotki mekhovoj ovchiny: Pat. 2312898 RF // Nazarova T.P., Shulunova E.G., Anpilogova A. A., Esina G. F., Starodumova I. V. - 2006118151/12. Zayavl. 26. 05. 2006. Opubl. 20. 12. 2007. (in Russ)

5. Kutepova N. P., Valyiin N. Z., Poisk novyh vozmozhnostej predotvrashcheniya biopovrezhdenij pushno-mekhovogo syr'ya. Razvitie mekhovoj promyshlennosti Rossii / tezisy dokladov V Mezhregional'noj nauchno-prakticheskoj konferencii. - M. 2003 - 64 s. (in Russ)

6. Bobyleva O. V. Modifikaciya processa krasheniya mekhovoj ovchiny / O. V. Bobyleva // Aktual'nye voprosy tovarovedeniya syr'ya zhivotnogo proiskhozhdeniya, produktov zhivotnovodstva, promyshlennyh i prodovol'stvennyh tovarov: mezhvedomstvennyj sb. nauch. trudov. - M.: FGOU VPO MGAVMiB im. Skryabina, 2007. – S. 72-75. (in Russ)

7. Lutfullina G. G., Sysoev V. A., Garifullina A. R., Valeeva E. E., Krasina I. V. Investigating the Effect of Plasma Treatment and Amine-Based Surfactants on Quality of Sheepskin Dyeing. Journal of Physics: Conference Series, Volume 1588, Issue 117, August 2020, № 012023

8. Gaidau, Carmen; Surdu, Lilioara; Niculescu, Mihaela-Doina; Dinca, Laurentiu; Barbu, Ionel. Improved properties of wool on sheepskins by low pressure plasma treatment. Industria Textila, Volume 68, Issue 3, Р. 193–196, 2017.

9. Hart Raymond. Coloring sheepskins. Journal of the American Leather Chemists Association, Volume 84, 68, Issue 7, Р. 224 – 226, July 1989.

10. Badanov K. I. Aktivacziya khimiko-tekstil`ny`kh proczessov otdelochnogo proizvodstva [Activation of chemical-textile processes of finishing production]. Monografiya. – Taraz: TIGU, 2014. - 224 s. (in Russ)

11. Badanov K. I., Kauy`mbaev R. T., Badanova R. R. Ustrojstvo dlya zhidkostnoj obrabotki tekstil`ny`kh materialov [Device for liquid processing of textile materials]. A.s #49741 Komitet po pravam intellektual`noj sobstvennosti Ministerstva yusticzii Respubliki Kazakhstan, 2007 g. (in Russ)

12. Badanov K. I. Badanova A. K., Badanova R. R., Tishkov A. V. Model`noe ustrojstvo dlya aktivaczii diffuzionno-sorbczionny`kh proczessov krasheniya sherstyanogo volokna [Model device for activation of diffusion-sorption processes of wool fiber dyeing] // Vestnik Almatinskogo tekhnologicheskogo universiteta. Vy`pusk 1 (114). Almaty`, 2017. – S. 32-38. (in Russ)

13. Badanov K. I., Badanova R. R., Badanova A. K., Matniyazova G. K., Nurly`baeva A. N., Sejtpekova G. A., Kalmakhanova M. S., Madimarova G. B. Fiziko-khimicheskie zakonomernosti proczessa promy`vki shersti [Physico-chemical regularities of the wool washing process] // Izvestiya vy`sshikh uchebny`kh (in Russ)

14. Davide Pellegrini, Massimo Corsi, MarcoBonanni, Roberto Bianchini. Study of the interaction between collagen and naturalized and commercial dyes by Fourier transform infrared spectroscopy and thermogravimetric analysis. Dyes and Pigments. Volume 116, May 2015, P. 65-73.