STUDY ON ULTRASONIC DEGREASING OF SHEEPSKIN WASTE
Leather industry is a relatively large source of waste from raw material, so skin waste recovery is a goal of clean technologies. Capitalization of skin waste aims to obtain: chemical auxiliaries, technical articles, hydrolyzed protein, artificial leather, composite building materials, heat sources...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Editura Universităţii din Oradea
2014-05-01
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| Series: | Annals of the University of Oradea: Fascicle of Textiles, Leatherwork |
| Subjects: | |
| Online Access: | http://textile.webhost.uoradea.ro/Annals/Vol%20XV-no%20I/Art.%20nr.%2024,%20pag%20127-132.pdf |
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| author | BĂLĂU MÎNDRU Tudorel POPA Emil PRUNEANU Melinda BĂLĂU MÎNDRU Iulia MUREŞAN Augustin |
| author_facet | BĂLĂU MÎNDRU Tudorel POPA Emil PRUNEANU Melinda BĂLĂU MÎNDRU Iulia MUREŞAN Augustin |
| author_sort | BĂLĂU MÎNDRU Tudorel |
| collection | DOAJ |
| description | Leather industry is a relatively large source of waste from raw material, so skin waste recovery is a goal of clean technologies. Capitalization of skin waste aims to obtain: chemical auxiliaries, technical articles, hydrolyzed protein, artificial leather, composite building materials, heat sources and collagen biomaterials with
applications in medicine, cosmetics, etc. A first step in the recovery of skin waste is the degreasing operation.
Ultrasound is an effective tool to improve the efficiency of the conventional degreasing affecting the chemical substances as well as the treated skin. In addition, the processing time is reduced. Ultrasound is known to enhance the emulsification and dispersion of oils/fat. The usual degreasing methods requires more
emulsifier/solvent ratio and process time for emulsification and additional solvent for washing out the emulsified fat. This paper investigates the possibility of recovery through ecological processes of leather waste from finishing operations for further capitalization. The present study aims emulsification and subsequent removal of the fat present in the chamois powder waste from polishing operation with the aid of ultrasound by an
aqueous ecofriendly method. The study also took into account the ultrasonic treatment of the leather waste using trichlorethylene as a medium of propagation-degreasing, and realized a comparative analysis of efficiency of fat extraction by Soxhlet method and via ultrasonication. IR-ATR and optical microscopy highlight both morphological and chemical-structural changes of treated materials by different degreasing methods |
| first_indexed | 2024-04-13T11:17:56Z |
| format | Article |
| id | doaj.art-adb1cbb35a3244928493af43b0fc69ca |
| institution | Directory Open Access Journal |
| issn | 1843-813X 1843-813X |
| language | English |
| last_indexed | 2024-04-13T11:17:56Z |
| publishDate | 2014-05-01 |
| publisher | Editura Universităţii din Oradea |
| record_format | Article |
| series | Annals of the University of Oradea: Fascicle of Textiles, Leatherwork |
| spelling | doaj.art-adb1cbb35a3244928493af43b0fc69ca2022-12-22T02:48:54ZengEditura Universităţii din OradeaAnnals of the University of Oradea: Fascicle of Textiles, Leatherwork1843-813X1843-813X2014-05-01XV1127132STUDY ON ULTRASONIC DEGREASING OF SHEEPSKIN WASTEBĂLĂU MÎNDRU Tudorel 0POPA Emil1PRUNEANU Melinda2BĂLĂU MÎNDRU Iulia3MUREŞAN Augustin4Technical University “ Gheorghe Asachi of Iaşi, România, Department of Chemical Engineering in Textile – Leather, Faculty of Textile Leather and I ndustrial Management, B-dul Dimitrie Mangeron, no. 53, postal code 700500, Iaşi, RomâniaTechnical University “ Gheorghe Asachi of Iaşi, România, Department of Chemical Engineering in Textile – Leather, Faculty of Textile Leather and I ndustrial Management, B-dul Dimitrie Mangeron, no. 53, postal code 700500, Iaşi, RomâniaTechnical University “ Gheorghe Asachi of Iaşi, România, Department of Chemical Engineering in Textile – Leather, Faculty of Textile Leather and I ndustrial Management, B-dul Dimitrie Mangeron, no. 53, postal code 700500, Iaşi, RomâniaTechnical University “ Gheorghe Asachi of Iaşi, România, Department of Chemical Engineering in Textile – Leather, Faculty of Textile Leather and I ndustrial Management, B-dul Dimitrie Mangeron, no. 53, postal code 700500, Iaşi, RomâniaTechnical University “ Gheorghe Asachi of Iaşi, România, Department of Chemical Engineering in Textile – Leather, Faculty of Textile Leather and I ndustrial Management, B-dul Dimitrie Mangeron, no. 53, postal code 700500, Iaşi, RomâniaLeather industry is a relatively large source of waste from raw material, so skin waste recovery is a goal of clean technologies. Capitalization of skin waste aims to obtain: chemical auxiliaries, technical articles, hydrolyzed protein, artificial leather, composite building materials, heat sources and collagen biomaterials with applications in medicine, cosmetics, etc. A first step in the recovery of skin waste is the degreasing operation. Ultrasound is an effective tool to improve the efficiency of the conventional degreasing affecting the chemical substances as well as the treated skin. In addition, the processing time is reduced. Ultrasound is known to enhance the emulsification and dispersion of oils/fat. The usual degreasing methods requires more emulsifier/solvent ratio and process time for emulsification and additional solvent for washing out the emulsified fat. This paper investigates the possibility of recovery through ecological processes of leather waste from finishing operations for further capitalization. The present study aims emulsification and subsequent removal of the fat present in the chamois powder waste from polishing operation with the aid of ultrasound by an aqueous ecofriendly method. The study also took into account the ultrasonic treatment of the leather waste using trichlorethylene as a medium of propagation-degreasing, and realized a comparative analysis of efficiency of fat extraction by Soxhlet method and via ultrasonication. IR-ATR and optical microscopy highlight both morphological and chemical-structural changes of treated materials by different degreasing methodshttp://textile.webhost.uoradea.ro/Annals/Vol%20XV-no%20I/Art.%20nr.%2024,%20pag%20127-132.pdfultrasonicationcavitation effectresonator tubespectral analysismorphological structure |
| spellingShingle | BĂLĂU MÎNDRU Tudorel POPA Emil PRUNEANU Melinda BĂLĂU MÎNDRU Iulia MUREŞAN Augustin STUDY ON ULTRASONIC DEGREASING OF SHEEPSKIN WASTE Annals of the University of Oradea: Fascicle of Textiles, Leatherwork ultrasonication cavitation effect resonator tube spectral analysis morphological structure |
| title | STUDY ON ULTRASONIC DEGREASING OF SHEEPSKIN WASTE |
| title_full | STUDY ON ULTRASONIC DEGREASING OF SHEEPSKIN WASTE |
| title_fullStr | STUDY ON ULTRASONIC DEGREASING OF SHEEPSKIN WASTE |
| title_full_unstemmed | STUDY ON ULTRASONIC DEGREASING OF SHEEPSKIN WASTE |
| title_short | STUDY ON ULTRASONIC DEGREASING OF SHEEPSKIN WASTE |
| title_sort | study on ultrasonic degreasing of sheepskin waste |
| topic | ultrasonication cavitation effect resonator tube spectral analysis morphological structure |
| url | http://textile.webhost.uoradea.ro/Annals/Vol%20XV-no%20I/Art.%20nr.%2024,%20pag%20127-132.pdf |
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