Wet Blue Enzymatic Treatment and Its Effect on Leather Properties and Post-Tanning Processes
Due to their variety, specific activity, and mild reaction conditions, enzymes have a wide application in beam house processes such as soaking, dehairing, bating, and de-greasing. Recently, due to improvements in biotechnology, re-bating after chroming has received increased attention. The aim of th...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-03-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/16/6/2301 |
| _version_ | 1797610461181509632 |
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| author | Renata Biškauskaitė Virgilijus Valeika |
| author_facet | Renata Biškauskaitė Virgilijus Valeika |
| author_sort | Renata Biškauskaitė |
| collection | DOAJ |
| description | Due to their variety, specific activity, and mild reaction conditions, enzymes have a wide application in beam house processes such as soaking, dehairing, bating, and de-greasing. Recently, due to improvements in biotechnology, re-bating after chroming has received increased attention. The aim of this work was to investigate the application of enzyme preparation in the re-bating process and its effect on the semifinished and finished product, as well as its influence on post-tanning operations. The enzymatic treatment of chromed semifinished leather (wet blue) led to a higher shrinkage temperature (1–6 °C), greater water vapour absorption (0.3–5.5%), better chromium compounds exhaustion during re-chroming (4–21%), and better dye penetration. Moreover, collagen was affected during the enzymatic process; the results showed a greater concentration influence in the operation compared to the process time. On the other hand, no effect on the physical and mechanical properties and fat-liquoring process was observed. Overall, these results indicate that some properties and processes are improved; however, before use for re-bating, every enzyme should be carefully investigated. |
| first_indexed | 2024-03-11T06:15:35Z |
| format | Article |
| id | doaj.art-b223153f58294be68da8f8bcfebcee4d |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-11T06:15:35Z |
| publishDate | 2023-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-b223153f58294be68da8f8bcfebcee4d2023-11-17T12:20:19ZengMDPI AGMaterials1996-19442023-03-01166230110.3390/ma16062301Wet Blue Enzymatic Treatment and Its Effect on Leather Properties and Post-Tanning ProcessesRenata Biškauskaitė0Virgilijus Valeika1Faculty of Chemical Technology, Kaunas University of Technology, Radvilenu pl. 19, 50254 Kaunas, LithuaniaFaculty of Chemical Technology, Kaunas University of Technology, Radvilenu pl. 19, 50254 Kaunas, LithuaniaDue to their variety, specific activity, and mild reaction conditions, enzymes have a wide application in beam house processes such as soaking, dehairing, bating, and de-greasing. Recently, due to improvements in biotechnology, re-bating after chroming has received increased attention. The aim of this work was to investigate the application of enzyme preparation in the re-bating process and its effect on the semifinished and finished product, as well as its influence on post-tanning operations. The enzymatic treatment of chromed semifinished leather (wet blue) led to a higher shrinkage temperature (1–6 °C), greater water vapour absorption (0.3–5.5%), better chromium compounds exhaustion during re-chroming (4–21%), and better dye penetration. Moreover, collagen was affected during the enzymatic process; the results showed a greater concentration influence in the operation compared to the process time. On the other hand, no effect on the physical and mechanical properties and fat-liquoring process was observed. Overall, these results indicate that some properties and processes are improved; however, before use for re-bating, every enzyme should be carefully investigated.https://www.mdpi.com/1996-1944/16/6/2301wet blueenzyme preparationre-batingleather |
| spellingShingle | Renata Biškauskaitė Virgilijus Valeika Wet Blue Enzymatic Treatment and Its Effect on Leather Properties and Post-Tanning Processes Materials wet blue enzyme preparation re-bating leather |
| title | Wet Blue Enzymatic Treatment and Its Effect on Leather Properties and Post-Tanning Processes |
| title_full | Wet Blue Enzymatic Treatment and Its Effect on Leather Properties and Post-Tanning Processes |
| title_fullStr | Wet Blue Enzymatic Treatment and Its Effect on Leather Properties and Post-Tanning Processes |
| title_full_unstemmed | Wet Blue Enzymatic Treatment and Its Effect on Leather Properties and Post-Tanning Processes |
| title_short | Wet Blue Enzymatic Treatment and Its Effect on Leather Properties and Post-Tanning Processes |
| title_sort | wet blue enzymatic treatment and its effect on leather properties and post tanning processes |
| topic | wet blue enzyme preparation re-bating leather |
| url | https://www.mdpi.com/1996-1944/16/6/2301 |
| work_keys_str_mv | AT renatabiskauskaite wetblueenzymatictreatmentanditseffectonleatherpropertiesandposttanningprocesses AT virgilijusvaleika wetblueenzymatictreatmentanditseffectonleatherpropertiesandposttanningprocesses |