Research results

Chromium-free tanning

Showing 31–40 of 46 papers, ranked by topic relevance.

13th AICLST Congress · 2026 · TI-72-P

Utilization of Waste Pickle Liquor for Sustainable Azo Dye Synthesis and Application in Leather Processing

Madhan Kumar Meganathan,3, Keerthivason Selladurai, Sathya Ramalingam, 3*

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… The synthesized azo dyes were applied to zeolite-, vegetable-, and chrome-tanned leathers, showing good dye uptake, vibrant coloration, and lightfastness comparable to conventional dyes. Overall, this integrated waste-toresource strategy significantly reduces freshwater …

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XXXVIII IULTCS Congress · 2025 · L-O-004

Pilot Scale Study of Sulfide Free Enzymatic Unhairing for Ethiopian Raw Materials: Towards Sustainable and Circular Economy Pathway

Jayakumar Gladstone Christopher; Mohammed Hussien Seid; Prasanna Ramakrishnan; Akash Bhalla; Dagnew Negasa; Mishamo Wakasso; Sundarapandiyan Sundaramoorthy; Balaraman Madhan; Saravanan Palanivel

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… The results were compared with UNIDO Acceptable Quality Standards for chromium-tanned garment leathers (IS 12718:1989). 3. Results and Discussion 3.1. Enzyme performance The three enzymes evaluated: Commercial Enzymes-A (CEA), Commercial …

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III IULTCS EuroCongress · 2022 · V-O-250

The revaluation of solid waste from the GOAST tanning

Michela Signoretto; Sebastiano Tieuli; Elena Ghedini; Claudio Bortolati; Riccardo Pasquale; Francesco Serafini; Massimiliano Silvestri; Luca Frighetto

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… Therefore, besides developing a new metal-free tanning technology, the LIFEGOAST project pointed attention to the requalifi cation of solid wastes derived from it. In this work, the solid waste coming from the leather …

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III IULTCS EuroCongress · 2022 · V-P-300

Protein by-products recovery and their potential use in leather processing

Gaidau C.*[1], Stanca M.[2], Niculescu M.[1], Sancakli A.[3], Arican F.[3], Tonea S.[4]

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… free, metal-free, and glutaraldehyde-free tanning materials. The present research shows the possibility to use a renewable composite for sheepskin pre- tanning or bovine leather retanning with the final aim of replacingbasic chromium …

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XXXVII IULTCS Congress · 2023 · O-155-123

Process effect, pollution analysis, and product quality comparison of wet-blue prepared from seawater vs. industrial water based on benchmarking method

WEN Hui-tao; NIU Ze; LIU Lin; LIN Kexin; WEI Yonghong; ZHANG Qi; NIE Zirui; CAI Yilei; DAN Weihua

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… as a benchmarking, the process effects of seawater of soaking, liming, deliming, softening, pickling, and chrome tanning, as well as the different pollutants content in the different discharged waste liquid, and the performances of …

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