Academic literature on the topic 'Chrome tanning'

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Journal articles on the topic "Chrome tanning"

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Teshome, Zerihun, Tesfaye Agazhi, Tale Gashew, et al. "Extraction and Optimization of Tanning Material from Osyris lanceolata Barks: Cleaner Leather Tanning Processing." Journal of Chemistry 2023 (November 14, 2023): 1–12. http://dx.doi.org/10.1155/2023/6610247.

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Tanning is a processing mechanism that prevents the collagen fibers from putrefaction to maximize the hydrothermal stability of leather. Tannin agents extracted from plants were used in leather production in a process called vegetable tanning. Vegetable tanning is an eco-friendly tanning method when compared to chrome tanning. Chrome tanning is the most common method of tanning hides. Currently, chrome tanning, which is extracted from chrome ores, is used in more than 80–90% of the leather tanning industry, but the most serious environmental issue associated with tanneries is chromium. This im
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Teklemedhin, Taame Berhanu, Tesfamariam Tekle Gebretsadik, Tesfu Berhane Gebrehiwet, et al. "Vegetable Tannins as Chrome-Free Leather Tanning." Advances in Materials Science and Engineering 2023 (September 28, 2023): 1–11. http://dx.doi.org/10.1155/2023/6220778.

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The purpose of this study is to replace chrome tannins with ecofriendly vegetable tannins as an alternative solution to prevent the public health and the environmental pollution. Vegetable tannin was extracted from Cassia singueana bark using an aqueous extraction method and applied on sheep pickle pelt. Optimum tannin extraction parameters were identified at powder concentration of 80 g/L, extraction temperature of 100°C, and extraction time of 120 mins. Chemical functionality of Cassia singueana extracted tannins was evaluated via FT-IR spectroscopy. Hence, the FT-IR spectrum confirmed the p
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Hou, Ming Ming, and Sheng Hua Lv. "Study on Tanning Properties of Modified Tannic Acid with Sulfanilic Acid Using Horseradish Peroxidase." Advanced Materials Research 487 (March 2012): 785–88. http://dx.doi.org/10.4028/www.scientific.net/amr.487.785.

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Tannic acid (TA) was modified by sulfanilic acid (SAA) using HRP catalysis in aqueous phase. The structure of modified TA was characterized by FTIR. The tanning properties of modified TA have been studied by the tanning test together with aluminum and chrome tannages. The tanning results show that the modified TA is suitable for use as pretannage and in combinaton with chrome and aluminum tannage. The shrink temperature (Ts) of leather tanned using 6% modified TA and 2% chrome tannage can reach to 92.0 oC by the modified TA and and chrome tannage by sequential step. The applied leather has mer
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Xiao, Yuanhang, Chunhua Wang, Jun Sang, and Wei Lin. "Novel Non-Pickling Combination Tanning for Chrome-free Leather Based on Reactive Benzenesulphonate and Tannic Acid." Journal of the American Leather Chemists Association 115, no. 1 (2020): 16–22. http://dx.doi.org/10.34314/jalca.v115i1.1464.

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A non-pickling combination tanning based on reactive benzenesulphonate (rBS) and Tannic acid (TA) has been developed for the chrome-free leather manufacturing. By optimizing the tanning process, the two-bath combination tanning with 4% rBS and 10% TA at the final pH 3.0-3.5 can raise the shrinkage temperature (Ts) of goatskins to ~86°C. Morphological analysis results reveal that the chrome-free leather exhibits a clear even grain surface and isolated collagen fiber network structure. The novel combination tanning approach not only improves light fastness, but also confers high physical and mec
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Rosiati, Nur Mutia, Laili Rachmawati, and Mustafidah Udkhiyati. "Characteristic of Chrome-Tanned and Vegetable-Tanned Goat Garment Leathers." Jurnal Peternakan 21, no. 2 (2024): 284. http://dx.doi.org/10.24014/jupet.v21i2.28919.

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ABSTRACT. Chrome tanning material is still widely used in the tanning process for garment leather production. Its use began to be reduced to overcome its negative environment impact. Vegetable tannin of a mimosa and tara combination was used in this study to substitute chrome tanning material. Garment made from vegetable-tanned leather with a ratio mimosa to tara of 5:13 was compared to garments made from chrome-tanned leather, both the production methods and resulting leather characteristics. To obtain garment leather characteristics, chrome-tanned leather requires auxiliary materials and two
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Yu, Yue, Yunhang Zeng, Tao Liang, Jianfei Zhou, and Bi Shi. "Inverse Chrome Tanning Technology." Journal of the American Leather Chemists Association 115, no. 5 (2020): 176–82. http://dx.doi.org/10.34314/jalca.v115i5.3811.

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Conventional chrome tanning technology (CCTT) generates a remarkable quantity of Cr(III)-containing wastewater and solid wastes, which may pose a potential risk to the environment. In this work, an inverse chrome tanning technology (ICTT) was developed based on chrome-free tanning by Al–Zr complexes and highly oxidized starch (AZ–HOS) to minimize Cr(III) discharge. The 7.5% AZ–HOS exhibited sufficient tanning effect and gave wet white a shrinkage temperature of over 80o C. Thus, wet white can be stably stored for one year and possessed high absorption capacity to post-tanning chemicals (85%–90
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Conde, Mireia, Felip Combalia, Lluis Ollé, and Anna Bacardit. "Pine Tannin Extraction from Residues of Pine Forest Exploitation." Journal of the American Leather Chemists Association 115, no. 6 (2020): 215–21. http://dx.doi.org/10.34314/jalca.v115i6.3821.

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The main aim of this study is to use the vegetable extract obtained from the residues of pine forest exploitation as a source of tannins that, acting both as a tanning and retanning agent, can replace other vegetable extracts and chrome in leather tanning. The study thus proposes a bio resource more sustainable to use in tanning process that avoids the use of chemical products that are detrimental to our health and can have an impact on the biodegradable nature of the final tanned leather. Furthermore, in addition to the benefits of using a new, fully biodegradable tanning material (Biodegrada
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VALEIKA, Virgilijus. "Low-pickle Processing of Leather: Assessment of Leather Tanning Quality by Methods of Thermal Analysis." Materials Science 26, no. 3 (2020): 333–36. http://dx.doi.org/10.5755/j01.ms.26.3.22509.

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Pelt obtained by deliming with peracetic acid can be chromed after additional treatment with sodium chloride or oxalic acid solution, or directly tanned using synthetic tannins. The results of differential scanning calorimetry and thermogravimetric analyses have suggested that any tanning increases thermal stability of leather collagen. The produced chrome-free leather, despite its high tensile strength, is not characterized by high shrinkage temperature what indicates insufficient thermal stability of such leather. This fact contradicts the results of differential scanning calorimetry and the
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Yu, Yue, Yirui Lin, Yunhang Zeng, et al. "Life Cycle Assessment for Chrome Tanning, Chrome-Free Metal Tanning, and Metal-Free Tanning Systems." ACS Sustainable Chemistry & Engineering 9, no. 19 (2021): 6720–31. http://dx.doi.org/10.1021/acssuschemeng.1c00753.

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Cao, Shan, Bao Zhen Cheng, Hai Li Zhang, and Guo Wei Geng. "Application of CRBD to Reducing Pollution of Leather Tanning Wastewater." Advanced Materials Research 800 (September 2013): 593–96. http://dx.doi.org/10.4028/www.scientific.net/amr.800.593.

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Trivalent chrome has an abroad application in the area of leather tanning, electrolytic plating and dyeing due to the strong capability of coordination. Pollution caused by chrome salts cannot be ignored. This paper proved that the chrome tanning wastewater can be treatment by chrome chelates (CRBD). The supernatant was reused in washing and pickling process and chromium sludge was utilized to make regeneration chrome-tanning agents; which all not only protect the environment but also save production cost. A series of experiment results showed that SO42-and oil contents increased slightly as w
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Dissertations / Theses on the topic "Chrome tanning"

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Jianxun, Luo, Feng Yanjuan, and Ma Hewei. "Cleaner Chrome Tanning - 146: Technology of low-chrome tanning without salt, pickling and short procedure." Verein für Gerberei-Chemie und -Technik e. V, 2019. https://slub.qucosa.de/id/qucosa%3A34303.

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Content: Tannery effluent with high salinity and chromium have a serious environmental impact. The traditional chrome tannage that involved the use of sodium chloride, acid and chromium is one of the main origins of salt and chromium pollution. In this study, a non-pickling, low-chrome tanning technology was developed. The novel Chrome-free agent SL can be directly employed to tan bated cattle pelts and the wet white was obtained. Then the shaved wet white was pre-treated by Poly-carboxylate auxiliary agent and tanned by chrome powder. It was tested that the shrinkage temperature of the wet wh
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Menderes, Özlem. "Fundamental aspects of the chrome tanning reaction." Thesis, University of Leicester, 2002. http://hdl.handle.net/2381/30258.

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Fundamental elements of chrome-collagen interactions and the crosslinking mechanism at the molecular level have been investigated to gain detailed understanding that can be translated into improvements in the commercial process. Amide group hydrolysis during conventional liming proceeds by two mechanisms: direct hydrolysis with hydroxyl catalysis or intramolecular catalysed hydrolysis that can be measured by the degree of racemisation at L- asparagine. Gas chromatography mass spectrometry analysis of limed collagen demonstrated that there was no initial rise in the amount of D-aspartic acid du
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Zhang, Yi, Jenna K. Buchanan, Geoff Holmes, and Sujay Prabakara. "High-efficiency chrome tanning using pre-treatments - 98." Verein für Gerberei-Chemie und -Technik e. V, 2019. https://slub.qucosa.de/id/qucosa%3A34286.

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Content: Pre-treatments are widely used during tanning processes as to improve the performance of the main tannage. Synchrotron small-angle X-ray scattering (SAXS) and differential scanning calorimetry (DSC) were used to study four common types of pre-treatments, viz. monodentate complexing agent (sodium formate, SF), chelating agent (disodium phthalate, DSP), covalent cross-linker (glutaraldehyde, GA) and nanoclay (sodium montmorillonite, MMT) about their effects on chromium-collagen cross-linking reaction during tanning. Based on the results, the performance of chromium-collagen cross-linkin
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Zhang, Jinwei, Wuyong Chen, and Carmen Gaidau. "Chrome tanning process and the leather properties under microwave irradiation - 92." Verein für Gerberei-Chemie und -Technik e. V, 2019. https://slub.qucosa.de/id/qucosa%3A34276.

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Content: In leather making processes, the thermal and non-thermal effect of microwave, especially non-thermal effect, strengthen the combination between collagen and chemicals. Although tanning under microwave makes the leather have better thermal stability, the tanning process and leather properties have not been studied in detail. For illustrating the influence of microwave on chrome tanning process, pickled skin was tanned for 6h as penetration procedure and then basified for another 4h as fixation procedure. The tanning under microwave heating (MW) was experimental sample and under water b
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Zhang, Yi, Jenna K. Buchanan, Geoff Holmes, and Sujay Prabakar. "Towards a molecular level understanding of chrome tanning - 2: Interplay between collagen structure and reactivity." Verein für Gerberei-Chemie und -Technik e. V, 2019. https://slub.qucosa.de/id/qucosa%3A34139.

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Content: Synchrotron small-angle X-ray scattering (SAXS) technique was applied to leather research to understand the changes in molecular-level collagen structure during tanning and denaturation (shrinkage), which can help reduce the environmental impact from the extensive chrome usage. Based on SAXS results from realtime denaturation experiments on leather samples, we established a mechanistic model of chrome tanning indicated by the structural changes of collagen. It suggests that only a low level of chromium species is effectively involved in the cross-linking with collagen, which highlight
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Jin, Liqiang, S. Xiu, Y. Wang, Z. Zhang, J. Fang, and E. Shen. "Minimization of the environmental impact in the chrome tanning process by a closed-loop recycling technology - 95." Verein für Gerberei-Chemie und -Technik e. V, 2019. https://slub.qucosa.de/id/qucosa%3A34232.

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Content: It is acknowledged that conventional chrome tanning in leather processing discharges significant amounts of chromium, dissolved solids and chlorides. The recycling technology is one of the effective solutions to reduce the environmental impact of chrome tanning waste water at source. In this work, a novel closed recycling technology of chrome tanning wastewater was applied in the tanning process of the goat skins at a pilot scale level. The properties of chrome tanning liquors obtained by the recycling technology and the resultant crust were analyzed. The results show that this close
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Jayakumar, Gladstone Christopher. "Leathers for marine applications - 233." Verein für Gerberei-Chemie und -Technik e. V, 2019. https://slub.qucosa.de/id/qucosa%3A34261.

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Content: Leather and leather products are known for its durability and luxuries which makes it more unique among the other synthetic materials. Breathability and visco-elastic properties make leather unique choice of biomaterial. Utilization of leathers in marine based applications is limited owing to reactivity of leather towards salt and weather conditions. Moreover, the choice of raw materials and chemicals used during leather manufacture has greatly influence the properties of the leather. An attempt has been made to understand the influence of sea conditions on leathers. Conventional chro
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Martínez, de Luna Mercedes Catalina. "Extraction, characterisation and application of gelatin from chrome-tanned leather waste." Thesis, University of Northampton, 2007. http://nectar.northampton.ac.uk/2677/.

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The most significant problem of the tanning industry is waste generation. The presence of chromium in leather waste represents a potential hazard due to the possibility of Cr(III) being converted to its toxic state, Cr(VI). The treatment of chrome-tanned leather waste described in this research occurs in three phases: dechroming; isolation of gelatin, and application of the gelatin produced in the finishing of leather. Chrome-tanned shavings were dechromed and subsequently used for the production of gelatin. Gelatin was isolated from dechromed shavings in a one-step process, through thermal an
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Bryntesson, Klara, and Cajsa Ferling. "Ett hållbart läder : En jämförande studie mellan konventionellt läder och naturmaterialet Piñatex." Thesis, Högskolan i Borås, Akademin för textil, teknik och ekonomi, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-21945.

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Läder som material har använts av människor i århundraden och är ett av de mest tåliga materialen som finns idag. Detta leder till att det produceras extremt höga mängder läder där den högsta andelen som produceras är kromgarvat läder, som står för cirka 90 procent av den totala läderproduktionen. I och med dagens medvetenhet kring miljö och hur läder påverkar denna efterfrågas alternativa material. Piñatex är ett material där man använt sig av bladen på ananasplantan för att sedan producera ett nonwoven-material som är likt läder, trots att det inte skapats som ett substitut till läder, men a
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Марухленко, М. А., Е. Р. Мокроусова та Е. А. Охмат. "Технологические аспекты хромсберегающей технологии дубления кож". Thesis, Издательство ВСГУТУ, 2016. https://er.knutd.edu.ua/handle/123456789/3414.

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The work is dedicated to developing technological parameters of tanning leathers with reduced expenses of chromium compounds, with new tanning material, based on modified montmorillonite dispersion. The use of modified montmorillonite dispersions for tanning improves the quality of finished leather and reduces the negative impact on the environment.<br>Работа направлена на разработку технологических параметров процесса дубления кож с сокращенным расходом соединений хрома путем применения материале на основе модифицированных дисперсий монтмориллонита Использование модифицированных дисперсий мон
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Books on the topic "Chrome tanning"

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Watt, Alexander. Leather Manufacture: A Practical Handbook of Tanning, Currying, and Chrome Leather Dressing. Creative Media Partners, LLC, 2018.

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Watt, Alexander. Leather Manufacture: A Practical Handbook of Tanning, Currying, and Chrome Leather Dressing. Adamant Media Corporation, 2005.

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Watt, Alexander. Leather Manufacture: A Practical Handbook of Tanning, Currying, and Chrome Leather Dressing. Franklin Classics Trade Press, 2018.

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Manufacture of Leather: Being a Description of All of the Processes for the Tanning and Tawing with Bark, Extracts, Chrome and All Modern Tannages in General Use . . Creative Media Partners, LLC, 2018.

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Charles Thomas [From Old Cata David. Manufacture of Leather: Being a Description of All of the Processes for the Tanning and Tawing with Bark, Extracts, Chrome and All Modern Tannages in General Use . . Creative Media Partners, LLC, 2022.

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Charles Thomas [From Old Catalog David. The Manufacture of Leather: Being a Description of All of the Processes for the Tanning and Tawing with Bark, Extracts, Chrome and All Modern Tannages in General Use .. Franklin Classics Trade Press, 2018.

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Charles Thomas [From Old Catalog David. The Manufacture of Leather: Being a Description of All of the Processes for the Tanning and Tawing with Bark, Extracts, Chrome and All Modern Tannages in General Use .. Franklin Classics Trade Press, 2018.

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The Manufacture of Leather: Being a Description of all of the Processes for the Tanning and Tawing With Bark, Extracts, Chrome and all Modern Tannages in General use .. Franklin Classics, 2018.

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Book chapters on the topic "Chrome tanning"

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Kowalski, Zygmunt, and Michal Piwowarski. "Utilization of Leather Scraps After Chrome and Vegetable Tanning." In Chemistry for the Protection of the Environment 2. Springer US, 1996. http://dx.doi.org/10.1007/978-1-4613-0405-0_28.

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"Vegetable Tanning." In Tanning Chemistry: The Science of Leather, 2nd ed. The Royal Society of Chemistry, 2019. http://dx.doi.org/10.1039/9781788012041-00336.

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Vegetable tanning is the jargon term for the use of plant polyphenols, a traditional approach to tanning used for thousands of years. Up to the point when it was overtaken by the introduction of chrome tanning, the sources of plant tannins were many and varied, each having a specific application to the properties and performance required of the product. In the modern industry, vegetable tannins have a place, but the number of species used is limited: mimosa, quebracho, chestnut, sumac, tara and oak extracts are examples. There are two main types of tannins and both are used in the modern indus
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"Mineral Tanning: Chromium(III)." In Tanning Chemistry: The Science of Leather, 2nd ed. The Royal Society of Chemistry, 2019. http://dx.doi.org/10.1039/9781788012041-00243.

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In the international leather industry, the most prevalent tanning process, in perhaps 90% of all leather manufacture, uses basic chromium(III) salts. The reaction is deceptively simple, hence it can be used by tanneries with little technical knowledge or support. That serves to indicate the degree of ignorance that is common in the sector concerning the science that underpins the reaction. Even an explanation of the apparent anomalously high thermal stability conferred by the process was not available a quarter of a century ago. There have been many myths and much incorrect received wisdom ass
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"Pickling." In Tanning Chemistry: The Science of Leather, 2nd ed. The Royal Society of Chemistry, 2019. http://dx.doi.org/10.1039/9781788012041-00204.

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Pickling is the further lowering of the pH after bating; most commonly it is a preparation for chromium tanning, but also applies to other tanning processes that require conditions below pH 9. For chrome tanning, the aim is to create pH 2.7–2.8 for the beginning of tanning with 33% basic chromium(III) sulfate. The acidic pH is associated with swelling of the protein by an osmotic mechanism due to the binding of acid onto the protein. Swelling can be avoided by the presence of neutral electrolyte according to the Donnan principle, to equalise the osmotic pressure inside and outside the pelt. Th
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"The Future of Tanning Chemistry." In Tanning Chemistry: The Science of Leather, 2nd ed. The Royal Society of Chemistry, 2019. http://dx.doi.org/10.1039/9781788012041-00598.

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The chemistry of chrome tanning still has some way to go with regard to improvements in effectiveness. There is no alternative mineral option, although a few metals may play their part in future processing. No single-reagent tannage, whether inorganic or organic, can match the properties conferred by chromium(III). Traditional organic tannages, such as those based on phenol chemistry, can be revived and modified in the light of modern understanding of leather science: extending the thinking to other aromatic systems shows promise. The majority of recent developments have been in other organic
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"Theory of Tanning: the Concept of Link–Lock." In Tanning Chemistry: The Science of Leather, 2nd ed. The Royal Society of Chemistry, 2019. http://dx.doi.org/10.1039/9781788012041-00583.

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Up to the beginning of the twenty-first century, the origin of hydrothermal increases in tanned collagen had not been explained and, in particular, the variation in outcome of different tanning chemistries and especially the apparently anomalous effect of chrome tanning had not been addressed. The phenomena had been glossed over, in favour of a vague concept of crosslinking, whereby the collagen triple helices were linked in a way that prevented them from breaking down in wet heat: this applied to all of the various fixation mechanisms. Here, it is argued that previous thinking was flawed, bec
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Ciambelli, P., D. Sannino, B. Naviglio, et al. "Zeolite-chrome tanning: From laboratory to pilot scale." In Oxide Based Materials - New sources, novel phases, new applications. Elsevier, 2005. http://dx.doi.org/10.1016/s0167-2991(05)80148-x.

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"Study on High-Absorption Chrome Tanning Technology Assisted by CO2 Low Temperature Plasma Treatment." In Materials in Environmental Engineering. De Gruyter, 2017. http://dx.doi.org/10.1515/9783110516623-064.

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Machuca, Laura Marcela, María Florencia Acuña Ojeda, Carolina Guadalupe Gutierrez, and Marcelo César Murguía. "Design and Synthesis of N-acetylated Gemini Surfactants for Use as Leather Preservatives during the Chrome-tanning Process." In Current Perspectives on Chemical Sciences Vol. 8. Book Publisher International (a part of SCIENCEDOMAIN International), 2021. http://dx.doi.org/10.9734/bpi/cpcs/v8/7250d.

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"Soil Pollution by Chromium in Sub-Saharan Africa." In Global Industrial Impacts of Heavy Metal Pollution in Sub-Saharan Africa. IGI Global, 2023. http://dx.doi.org/10.4018/978-1-6684-7116-6.ch008.

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This chapter explores the physicochemical characteristics of chromium (Cr) and how they exert pollution in soils of sub-Saharan Africa. The metal is sourced mainly from ferrochrome- and chromite-based ores found in mafic and ultramafic rocks. The hexavalent form, Cr (VI), which is more soluble and bioavailable is more toxic compared to the trivalent form, Cr (III) that is immobile. Industrial activities including leather tanning that uses chromium basic sulfate, mining of ferrochrome and smelting activities, production of steel and manufacture, and use of agrochemicals introduce Cr to soils of
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Conference papers on the topic "Chrome tanning"

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Gichuhi, Tony, and David Tarjan. "Corrosion Control without the Use of Toxic Heavy Metals." In SSPC 2013 Greencoat. SSPC, 2013. https://doi.org/10.5006/s2013-00068.

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Abstract Until recently heavy metal based corrosion inhibitors were widely accepted as the best materials that could provide the corrosion protection needed in coatings. Corrosion inhibitors provide an indispensable function in protective coatings. The performance of a coating under corrosive conditions requires that corrosion inhibitors provide sustainable protection during the coatings lifetime. The coating industry however is challenged to be more cognizant of the impact toxic metals have on human health and the environment. In response to a REACH (Registration, Evaluation, Authorization an
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Lakić, Sara, Tatjana Botić, Aleksandra Borković, Boštjan Novak, and Svjetlana Janjić. "Comparison of physical and mechanical properties of chrome and vegetable tanned leather." In 7th International Scientific Conference Contemporary Trends and Innovations in Textile Industry – CT&ITI 2024. Union of Engineers and Technicians of Serbia, Belgrade, 2024. http://dx.doi.org/10.5937/ct_iti24030l.

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Leather making is a very long process and consists of many different chemical and mechanical operations. The most important operation of the whole leather making process is the tanning, which is performed mainly by vegetable or chrome tanning. With this work, we wanted to establish a connection between the way leather is tanned and its physical and mechanical properties. For this purpose, certain physical and mechanical properties of bovine, sheep and goat leather, which were obtained by chrome and vegetable tanning, were examined. Tests were performed on commercially available leathers. The s
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Griyanitasari, Gresy, Emiliana Kasmudjiastuti, Ragil Yuliatmo, and Mohammad Zainal Abidin. "Evaluation of combination tanning and natural finishing on sheep leather with Uncaria Gambir Roxb extract." In The 8th International Conference on Advanced Materials and Systems. INCDTP - Leather and Footwear Research Institute (ICPI), Bucharest, Romania, 2020. http://dx.doi.org/10.24264/icams-2020.ii.11.

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The discovery of natural local resources for tanning and coloring agents are growing dramatically to sustain a cleaner leather manufacturing technology. Gambir (Uncaria gambir Roxb) has been found potential as tannin and dyestuffs for leather and textile industry. Therefore, to explore these issues, a combination tanning and finishing system were evaluated to observe the efficiency of this extract on leather processing. A combination tanning system based on chrome or glutaraldehyde – gambir and followed by gambir as coloring agent with different concentrations (100 - 200 parts/L) have been app
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Shoyimov, Sh, and T. Kodirov. "EXTRACTION AND PROPERTIES OF COLLAGEN FROM SKIN WASTE CHROME TANNING." In КОЖА И МЕХ В XXI ВЕКЕ: ТЕХНОЛОГИЯ, КАЧЕСТВО, ЭКОЛОГИЯ, ОБРАЗОВАНИЕ. Восточно-Сибирский государственный университет технологий и управления, 2022. http://dx.doi.org/10.53980/9785907599079_71.

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Li, Wenxin, Jijun Xu, Lijuan Cao, and Rong Lu. "Modification Waste Feathers and Its Treatment Chrome(III) in Tanning Waste Water." In 2010 4th International Conference on Bioinformatics and Biomedical Engineering (iCBBE 2010). IEEE, 2010. http://dx.doi.org/10.1109/icbbe.2010.5517436.

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Rajamani, Sengoda Gounder, and Arnold Mulder. "Ecological Friendly Production Process and Waste Treatment for Circular Economy in Leather Tanning Industries." In The 9th International Conference on Advanced Materials and Systems. INCDTP - Leather and Footwear Research Institute (ICPI), Bucharest, Romania, 2022. http://dx.doi.org/10.24264/icams-2022.iv.11.

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Ecological friendly processes with recovery of salt, chemicals and water for reuse in the tanning process as well as from liquid and solid waste are necessary for the promotion of circular economy.Recent developments in cleaner production and treatment process by reducing volume of effluent and pollution discharges, recovery of quality salt in the segregated streams such as saline soak liquor, spent chrome liquor and adoption of advanced aerobic oxidation process in the treatment system resulted in the recovery of purified salt, quality chromium and water for reuse. The achievements of innovat
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Setyawan, Mohamad Febby, Eli Hendrik Sanjaya, Eli Hendrik Sanjaya, et al. "Isolation and characterization of microbes from tanning waste sediments that have the potential to be bioremediation agents of chrome waste." In MATHEMATICS AND ITS APPLICATIONS IN TECHNOLOGY. AIP Publishing, 2024. http://dx.doi.org/10.1063/5.0202027.

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Biškauskaitė, Renata, and Virgilijus Valeika. "Effect of Enzymatic Bating on Wet Blue Leather Properties." In The 9th International Conference on Advanced Materials and Systems. INCDTP - Leather and Footwear Research Institute (ICPI), Bucharest, Romania, 2022. http://dx.doi.org/10.24264/icams-2022.iii.4.

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The use of enzymes in leather processes has increased in recent years. Enzymes have gained more recognition because of their properties, such as specific activity, simple application, mild enzymatic reaction conditions, and non-polluting effluent generations. However, not all enzymatic operations are well investigated, and there is still a lack of knowledge on ferment usage in post-tanning processes. The aim of this study was to investigate the enzyme implementation in wet blue bating and its effect on semi-finished product. The various enzyme preparations were used for bating at different con
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Niculescu, Olga, Carmen Gaidau, Elena Badea, Lucretia Miu, Dana Gurau, and Demetra Simion. "Special effect finish for bookbinding leather." In The 8th International Conference on Advanced Materials and Systems. INCDTP - Leather and Footwear Research Institute (ICPI), Bucharest, Romania, 2020. http://dx.doi.org/10.24264/icams-2020.ii.21.

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The art of bookbinding requires not only skills in the old craft of bookbinding but also materials that can transform a simple book into a high-quality artistic product. Due to its unique properties, leather still remains the first-choice material in the case of art and archival bindings. However, the long-term durability of modern leather is not known since there is little commercial interest in long periods of durability and the market of leather for art, design and archival purposes is very small. It is worth noting that deterioration is influenced by the manufacturing technology, and espec
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Ghazali, Nurul Aimi, Shigemi Naganawa, Yoshihiro Masuda, Wan Asma Ibrahim, and Noor Fitrah Abu Bakar. "Eco-Friendly Drilling Fluid Deflocculant for Drilling High Temperature Well: A Review." In ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/omae2018-78149.

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Conventional clay-based drilling fluids often experienced difficulties in controlling the rheological properties, gelation, and filtration due to flocculation of clay at the temperature higher than 121°C. Deflocculant or thinner, one of the drilling fluid additives, serves a significant role in preventing the association of clay particles particularly in high temperature environments such as high-pressure and high-temperature (HPHT) deep-water drilling. Lignosulfonate has been commonly used in the industry as deflocculant for clay-based drilling fluids since the late 1950s as a replacement for
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