Chromium-free and waterless vegetable-aluminium tanning system for sustainable leather manufacture
Intensifying researches in leather sector are focusing on eco-benign tanning chemicals with less environmental impact processing route. The present study aims to design an eco-acceptable shoe upper leather process that could potentially eliminate use of chrome from the leather industry. Possible con...
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| Format: | Article |
| Language: | English |
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Elsevier
2021-08-01
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| Series: | Chemical Engineering Journal Advances |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666821121000247 |
| _version_ | 1818438696582512640 |
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| author | Srinivasan Pradeep Sundarapandiyan Sundaramoorthy Murali Sathish Gladstone Christopher Jayakumar Aravindhan Rathinam Balaraman Madhan Palanivel Saravanan Jonnalagadda Raghava Rao |
| author_facet | Srinivasan Pradeep Sundarapandiyan Sundaramoorthy Murali Sathish Gladstone Christopher Jayakumar Aravindhan Rathinam Balaraman Madhan Palanivel Saravanan Jonnalagadda Raghava Rao |
| author_sort | Srinivasan Pradeep |
| collection | DOAJ |
| description | Intensifying researches in leather sector are focusing on eco-benign tanning chemicals with less environmental impact processing route. The present study aims to design an eco-acceptable shoe upper leather process that could potentially eliminate use of chrome from the leather industry. Possible conversion of Cr3+ to Cr6+ in suitable oxidant environment during leather manufacture is always a threat to the ecosystem. Water load for leather processing is very high, also becoming a precious resource that needs to be reduced for industrial applications. Further without water usage for a process, generation of wastewater could be averted. With this context, a combination tanning using wattle and aluminium has been developed in a pickle-less and waterless medium. The experimental leather possesses a shrinkage temperature of 84 °C with a fully loaded compact fibre structure indicating that tannin penetration is not affected in waterless medium. Experimental leathers exhibit better physical strength and comparable organoleptic characteristics. The process enjoys environmental benefits as it shows significant pollution load reduction in Biological Oxygen Demand (BOD), chemical oxygen demand (COD), Total Dissolved Solids (TDS) by 88, 89, and 97%, respectively. Hence, a viable option is made available to manufacture eco-acceptable leather without water usage and chrome salts in tanning. |
| first_indexed | 2024-12-14T17:44:40Z |
| format | Article |
| id | doaj.art-2b931b6190354696a89e8d2635b5d3e7 |
| institution | Directory Open Access Journal |
| issn | 2666-8211 |
| language | English |
| last_indexed | 2024-12-14T17:44:40Z |
| publishDate | 2021-08-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Chemical Engineering Journal Advances |
| spelling | doaj.art-2b931b6190354696a89e8d2635b5d3e72022-12-21T22:52:45ZengElsevierChemical Engineering Journal Advances2666-82112021-08-017100108Chromium-free and waterless vegetable-aluminium tanning system for sustainable leather manufactureSrinivasan Pradeep0Sundarapandiyan Sundaramoorthy1Murali Sathish2Gladstone Christopher Jayakumar3Aravindhan Rathinam4Balaraman Madhan5Palanivel Saravanan6Jonnalagadda Raghava Rao7Centre for Academic and Research Excellence, CSIR-Central Leather Research Institute, Adyar, Chennai, India; Department of Leather Technology, Alagappa College of Technology (Housed at CSIR-Central Leather Research Institute), Anna University, Chennai-600020, IndiaRegional Centre for Extension and Development of CSIR-CLRI, Kanpur, IndiaRegional Centre for Extension and Development of CSIR-CLRI, Kanpur, IndiaCentre for Academic and Research Excellence, CSIR-Central Leather Research Institute, Adyar, Chennai, India; Department of Leather Technology, Alagappa College of Technology (Housed at CSIR-Central Leather Research Institute), Anna University, Chennai-600020, IndiaDepartment of Leather Technology, Alagappa College of Technology (Housed at CSIR-Central Leather Research Institute), Anna University, Chennai-600020, India; Leather Process Technology Division, CSIR-Central Leather Research Institute, Adyar, Chennai, IndiaCentre for Academic and Research Excellence, CSIR-Central Leather Research Institute, Adyar, Chennai, India; Department of Leather Technology, Alagappa College of Technology (Housed at CSIR-Central Leather Research Institute), Anna University, Chennai-600020, India; Corresponding author at: Centre for Academic and Research Excellence, CSIR-Central Leather Research Institute, Adyar, Chennai, India. Phone: +91 44 2443 7169Department of Leather Technology, Alagappa College of Technology (Housed at CSIR-Central Leather Research Institute), Anna University, Chennai-600020, India; Leather Process Technology Division, CSIR-Central Leather Research Institute, Adyar, Chennai, IndiaDepartment of Leather Technology, Alagappa College of Technology (Housed at CSIR-Central Leather Research Institute), Anna University, Chennai-600020, India; Inorganic and Physical Chemistry Laboratory, CSIR-Central Leather Research Institute, Adyar, Chennai, IndiaIntensifying researches in leather sector are focusing on eco-benign tanning chemicals with less environmental impact processing route. The present study aims to design an eco-acceptable shoe upper leather process that could potentially eliminate use of chrome from the leather industry. Possible conversion of Cr3+ to Cr6+ in suitable oxidant environment during leather manufacture is always a threat to the ecosystem. Water load for leather processing is very high, also becoming a precious resource that needs to be reduced for industrial applications. Further without water usage for a process, generation of wastewater could be averted. With this context, a combination tanning using wattle and aluminium has been developed in a pickle-less and waterless medium. The experimental leather possesses a shrinkage temperature of 84 °C with a fully loaded compact fibre structure indicating that tannin penetration is not affected in waterless medium. Experimental leathers exhibit better physical strength and comparable organoleptic characteristics. The process enjoys environmental benefits as it shows significant pollution load reduction in Biological Oxygen Demand (BOD), chemical oxygen demand (COD), Total Dissolved Solids (TDS) by 88, 89, and 97%, respectively. Hence, a viable option is made available to manufacture eco-acceptable leather without water usage and chrome salts in tanning.http://www.sciencedirect.com/science/article/pii/S2666821121000247Wattle-aluminiumCombination tanningChromium exhaustionEco-acceptable |
| spellingShingle | Srinivasan Pradeep Sundarapandiyan Sundaramoorthy Murali Sathish Gladstone Christopher Jayakumar Aravindhan Rathinam Balaraman Madhan Palanivel Saravanan Jonnalagadda Raghava Rao Chromium-free and waterless vegetable-aluminium tanning system for sustainable leather manufacture Chemical Engineering Journal Advances Wattle-aluminium Combination tanning Chromium exhaustion Eco-acceptable |
| title | Chromium-free and waterless vegetable-aluminium tanning system for sustainable leather manufacture |
| title_full | Chromium-free and waterless vegetable-aluminium tanning system for sustainable leather manufacture |
| title_fullStr | Chromium-free and waterless vegetable-aluminium tanning system for sustainable leather manufacture |
| title_full_unstemmed | Chromium-free and waterless vegetable-aluminium tanning system for sustainable leather manufacture |
| title_short | Chromium-free and waterless vegetable-aluminium tanning system for sustainable leather manufacture |
| title_sort | chromium free and waterless vegetable aluminium tanning system for sustainable leather manufacture |
| topic | Wattle-aluminium Combination tanning Chromium exhaustion Eco-acceptable |
| url | http://www.sciencedirect.com/science/article/pii/S2666821121000247 |
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