| Résumé : |
The development of finishes that aim to meet the performance, aesthetic and sustainability aims of the leather industry continues to take place. Chemical manufacturers are continuously looking for renewable feedstocks, and green chemistry that meets the following aims :
1. Reduce current or prevent future wastes
2. Waste few or no atoms
3. Ensure chemical manufacturing has little or no toxicity to either humans or the environment
4. Make chemical products that are fully effective yet have little or no toxicity
5. Avoid using solvents or use safer ones
6. Ensure chemistry runs at room temperatures and pressures
7. Use renewable feedstocks
8. Avoid using blocking or protecting groups that can generate waste
9. Use catalysts, e.g. enzymes or inorganic compounds
10. Make chemicals and products to degrade after use
11. Understand real-time reactions
12. Make chemicals (solid, liquid or gas) that minimise the potential for chemical accidents.
Beamhouse, tanning, post-tanning and fmishing chemistry are evaluated to meet the requirements listed above. In general, the leather industry does quite well, as many of these aims has been in development since the 1970s. In Mis article, ail 12 aims cannot be discussed with regard to fmishing developments but three of them (non-toxic chemistry, renewable feedstocks and degradable end-of-life) will be covered. |
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Finishing developments 2022 in INTERNATIONAL LEATHER MAKER (ILM), N° 54 (07-08/2022)
