An application of advanced hair-save processes in leather industry as the reason of formation of keratinous waste: few peculiarities of its utilisation

2019 ◽  
Vol 26 (6) ◽  
pp. 6223-6233 ◽  
Author(s):  
Virgilijus Valeika ◽  
Justa Širvaitytė ◽  
Danguolė Bridžiuvienė ◽  
Jurgita Švedienė
Keyword(s):  
Leather Industry ◽  
Keratinous Waste

DAMPAK SUBSITUSI IMPORT TERHADAP DEFISIT NERACA PERDAGANGAN: STUDI KASUS IMPOR KULIT INDONESIA

2020 ◽  
Vol 4 (2) ◽  
Author(s):  
Ivan Yulianto ◽  
Ario Seno Nugroho
Keyword(s):  
General Equilibrium ◽  
Foreign Exchange ◽  
Computable General Equilibrium ◽  
Trade Balance ◽  
Raw Materials ◽  
Import Substitution ◽  
Leather Industry ◽  
Materials Used ◽  
Net Export ◽  
Balance Deficit

An alternative strategy to reduce the trade balance deficit simultaneously to increase the net foreign exchange is the import-substitution for raw materials used to produce an export goods. This paper proposes an import substitution study on footwear products that have a dependency on imported raw materials by 70 percent, with the largest composition being leather raw materials by 67 percent. This paper analyzes the relationship between subsidies on the leather industry to leather import-substitution, multiplier effect to footwear sector, and Indonesia trade balance. Author make use of simulation the on Input-Output 2010 table and Computable General Equilibrium (CGE) Model. The simulation shows 100 billion subsidies on the leather sector, lead for the substitution-import of leather by 7,94 million rupiah, increase the net export foreign exchange by 1.1 billion rupiah of the footwear sector, and for overall, increase Indonesia trade balance deficit by 68 billion rupiah. Keywords: Computable General Equilibrium, footwear, leather, net foreign exchange, subsidy.ABSTRAK: Salah satu terobosan untuk mengurangi defisit neraca perdagangan dan meningkatkan nilai neto devisa ekspor adalah dengan substitusi impor bahan baku yang digunakan untuk memproduksi barang ekspor. Paper ini mengusulkan kajian substitusi impor pada produk alas kaki yang mempunyai ketergantungan bahan baku impornya sebesar 70 persen, dengan komposisi terbesar adalah bahan baku kulit sebesar 67 persen. Tujuan penelitian ini adalah untuk mengetahui dampak stimulus subsidi pada industri kulit terhadap subtitusi impor kulit, dukungan multiplier sektor kulit terhadap sektor alas kaki, serta terhadap devisa ekspor Indonesia. Penelitian ini menggunakan simulasi model Computable General Equilibrium (CGE). Hasil simulasi menunjukkan stimulus subsidi sebesar 100 milyar rupiah pada sektor kulit memberikan substitusi bahan baku kulit sebesar 7,94 juta rupiah, menaikkan devisa ekspor sektor alas kaki sebesar 1.1 miliar rupiah, serta secara keseluruhan menambah defisit neraca berjalan Indonesia sebesar 68 miliar rupiah. Kata kunci: alas kaki, Computable General Equilibrium (CGE), devisa ekspor, kulit, subsidi.

Moderating Effect of Access to Finance and Competitive Environment on Human Capital, Knowledge Management, Market Orientation and SMES Performance

2020 ◽  
Vol 11 (1) ◽  
pp. 105-105
Author(s):  
Mohd Noor Mohd Shariff ◽  
Khansa Masood ◽  
Halim Mad Lazim
Keyword(s):  
Human Capital ◽  
Knowledge Management ◽  
Firm Performance ◽  
Market Orientation ◽  
Competitive Environment ◽  
Leather Industry ◽  
Access To Finance ◽  
Economic Development And Growth ◽  
Dependent Variables ◽  
The Relationship

Small and medium enterprises (SMEs) are considered as foundation stones of economic development and growth of any economy (Centobelli, Cerchione, & Esposito, 2019). Performance of SMEs is of fundamental significance for all developed as well as developing nations. Similarly, Pakistan is no exception to aforementioned fact. The economic development and growth of Pakistan depend on the performance of SMEs to a great extent. Like, most countries in the world, SMEs comprise more than 90% of total business entities in Pakistan (Degong et al., 2018; Waqas & Nawaz, 2019) and leather industry in one that is attracted by the researchers of present study. Constraints in the growth of leather industry of Pakistan include, lack of skilled human capital, rising cost of production, lack of modern-day knowledge about new products and processes, low profitability and lack of capability to penetrate into international markets, lack of market research, access to finance, intensive competitive rivalry (Khalique et al., 2011; Daily Times, 2016, Awan et al., 2019). Few studies have revealed mixed findings regarding the relationship between knowledge management and firm performance and there is abundance of literature that demonstrates the presence of significant and positive relationship between Market Orientation and Firm performance (Slater & Narver , 1995; Baker & Sinkula, 2009; Udriyah, Tham, & Azam, 2019). On the other hand, some studies have argued that there is no direct and significant relationship between Market Orientation and Firm Performance (Polat & Mutlu, 2012; Shehu & Mahmood, 2014). Moreover, keeping in view the mixed and inconclusive findings regarding the relationship between cause and effect variables, it is appropriate to introduce moderating variables that can significantly influence the relationship between independent and dependent variables as recommended by Baron and Kenny (1986). Access to Finance and Competitive Environment can be served as prospective moderators which are quite appropriately related to proposed variables of the study (Prajogo & Oke, 2016; Rogo et al., 2016; Jaworski & Kohli, 1993) which are quite appropriately related to selected variables of the study. Thus, the research problem expressed that "Access to finance and competitive environment can potentially moderates and affect the relationship between independent and dependent variables. Hence, based on the past literature and aforementioned discussion, the present study intended to examine the moderating effects of Access to Finance and Competitive Environment on the Relationship between Human Capital, Knowledge Management, Market Orientation and SMEs Performance in Leather Industry of Pakistan". Keywords: Small medium enterprise, performance, access to finance, competitive environment

scholarly journals Tanning Wastewater Treatment by Ultrafiltration: Process Efficiency and Fouling Behavior

Membranes ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 461
Author(s):  
Fu Yang ◽  
Zhengkun Huang ◽  
Jun Huang ◽  
Chongde Wu ◽  
Rongqing Zhou ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Shear Rate ◽  
Membrane Surface ◽  
Filtration Efficiency ◽  
Operating Conditions ◽  
Process Efficiency ◽  
Transmembrane Pressure ◽  
Leather Industry ◽  
Pore Blocking ◽  
The Impact

Ultrafiltration is a promising, environment-friendly alternative to the current physicochemical-based tannery wastewater treatment. In this work, ultrafiltration was employed to treat the tanning wastewater as an upstream process of the Zero Liquid Discharge (ZLD) system in the leather industry. The filtration efficiency and fouling behaviors were analyzed to assess the impact of membrane material and operating conditions (shear rate on the membrane surface and transmembrane pressure). The models of resistance-in-series, fouling propensity, and pore blocking were used to provide a comprehensive analysis of such a process. The results show that the process efficiency is strongly dependent on the operating conditions, while the membranes of either PES or PVDF showed similar filtration performance and fouling behavior. Reversible resistance was the main obstacle for such process. Cake formation was the main pore blocking mechanism during such process, which was independent on the operating conditions and membrane materials. The increase in shear rate significantly increased the steady-state permeation flux, thus, the filtration efficiency was improved, which resulted from both the reduction in reversible resistance and the slow-down of fouling layer accumulate rate. This is the first time that the fouling behaviors of tanning wastewater ultrafiltration were comprehensively evaluated, thus providing crucial guidance for further scientific investigation and industrial application.

From the leather industry to building sector: Exploration of potential applications of discarded solid wastes

2021 ◽  
Vol 291 ◽  
pp. 125960
Author(s):  
Marina Vidaurre-Arbizu ◽  
Silvia Pérez-Bou ◽  
Amaia Zuazua-Ros ◽  
César Martín-Gómez
Keyword(s):  
Solid Wastes ◽  
Leather Industry ◽  
Building Sector ◽  
Potential Applications

scholarly journals Current trends in leather science

2020 ◽  
Vol 2 (1) ◽  
Author(s):  
Anthony D. Covington ◽  
William R. Wise
Keyword(s):  
Ionic Liquids ◽  
Potential Role ◽  
Solid Medium ◽  
Leather Industry ◽  
Chromium Vi ◽  
Current Trends ◽  
New Findings ◽  
Vegetable Tanning ◽  
Sulfide Species

Abstract In preparing the second edition of ‘Tanning Chemistry. The Science of Leather.’, the literature was updated and the content was revised and reviewed. Here, the new findings are presented and discussed. Notable developments include the necessary rethinking of the mechanism of sulfide unhairing because of new understanding of the aqueous chemistry of sulfide species. Revision upwards of the value of the second pKa for sulfide species ionisation means that S2− cannot exist in an aqueous medium, so the unhairing species in hair burn reactions is HS−. Although the technology remains the same, this means the mechanisms of associated reactions such as immunisation must be revised. Rawstock preservation has benefitted from studies of the potential role of materials from plants which accumulate salt, but which also contribute terpene compounds. There is also further discussion on the continuing issue of chromium (VI) in the leather industry. The application to processing of new solvents, ionic liquids and deep eutectics, is the coming technology, which offers transforming options for new chemistries and products. Renewed interest in vegetable tanning and methods of wet white processing are current trends. Also, within the topic of reagent delivery is processing in a solid medium of plastic beads. Graphical abstract

scholarly journals Preparation of Flame-Retardant Polyurethane and Its Applications in the Leather Industry

Polymers ◽  
2021 ◽  
Vol 13 (11) ◽  
pp. 1730
Author(s):  
Shaolin Lu ◽  
Yechang Feng ◽  
Peikun Zhang ◽  
Wei Hong ◽  
Yi Chen ◽  
...  
Keyword(s):  
Flame Retardant ◽  
Environmentally Friendly ◽  
Current Status ◽  
Leather Industry ◽  
Synthetic Leather ◽  
Overall Performance ◽  
Reactive Flame Retardant

As a novel polymer, polyurethane (PU) has been widely applied in leather, synthetic leather, and textiles due to its excellent overall performance. Nevertheless, conventional PU is flammable and its combustion is accompanied by severe melting and dripping, which then generates hazardous fumes and gases. This defect limits PU applications in various fields, including the leather industry. Hence, the development of environmentally friendly, flame-retardant PU is of great significance both theoretically and practically. Currently, phosphorus-nitrogen (P-N) reactive flame-retardant is a hot topic in the field of flame-retardant PU. Based on this, the preparation and flame-retardant mechanism of flame-retardant PU, as well as the current status of flame-retardant PU in the leather industry were reviewed.

scholarly journals Chitosan based antibacterial composite materials for leather industry: a review

2021 ◽  
Vol 3 (1) ◽  
Author(s):  
Linlin Yuan ◽  
Qingda Yao ◽  
Yongxian Liang ◽  
Ye Dan ◽  
Yixiao Wang ◽  
...  
Keyword(s):  
Extracellular Matrix ◽  
Polyethylene Glycol ◽  
Composite Materials ◽  
Water Treatment ◽  
Future Development ◽  
Structural Unit ◽  
Important Application ◽  
Antibacterial Mechanism ◽  
Leather Industry ◽  
Preparation Methods

Abstract Chitosan is an amorphous translucent substance with a structural unit similar to the polysaccharide structure of the extracellular matrix, It has good antibacterial, biocompatible, and degradable properties. It has important application value in leather, water treatment, medicine, food and other fields, so chitosan and its modified products have received widespread attention. This article reviewed the preparation methods of chitosan-based antibacterial composites in recent years, including chitosan/collagen, chitosan/graphene, chitosan/tannic acid, and chitosan/polyethylene glycol composite materials, elaborates their modification methods and antibacterial mechanism were reviewed in detail, and its applications in the leather industry as antibacterial auxiliaries and water treatment antibacterial adsorption materials were discussed. Finally, the future development and challenges of chitosan-based composite materials in the leather industry were forecasted. Graphical abstract

scholarly journals Biochar Mediated-Alleviation of Chromium Stress and Growth Improvement of Different Maize Cultivars in Tannery Polluted Soils

2021 ◽  
Vol 18 (9) ◽  
pp. 4461
Author(s):  
Muhammad Asaad Bashir ◽  
Xiukang Wang ◽  
Muhammad Naveed ◽  
Adnan Mustafa ◽  
Sobia Ashraf ◽  
...  
Keyword(s):  
Soluble Sugars ◽  
Cultivar Differences ◽  
Leather Industry ◽  
Polluted Soils ◽  
Chlorophyll Pigments ◽  
Growth Physiology ◽  
Maize Cultivars ◽  
Physiology And Biochemistry ◽  
Cr Toxicity ◽  
Relative Water

Soil pollution with heavy metal is a serious problem across the globe and is on the rise due to the current intensification of chemical industry. The leather industry is one of them, discharging chromium (Cr) in huge quantities during the process of leather tanning and polluting the nearby land and water resources, resulting in deterioration of plant growth. In this study, the effects of biochar application at the rate of 3% were studied on four maize cultivars, namely NK-8441, P-1543, NK-8711, and FH-985, grown in two different tannery polluted Kasur (K) and Sialkot (S) soils. Maize plants were harvested at vegetative growth and results showed that Cr toxicity adversely not only affected their growth, physiology, and biochemistry, but also accumulated in their tissues. However, the level of Cr toxicity, accumulation, and its influence on maize cultivars varied greatly in both soils. In this pot experiment, biochar application played a crucial role in lessening the Cr toxicity level, resulting in significant increase in plant height, biomass (fresh and dry), leaf area, chlorophyll pigments, photosynthesis, and relative water content (RWC) over treatment set as a control. However, applied biochar significantly decreased the electrolyte leakage (EL), antioxidant enzymes, lipid peroxidation, proline content, soluble sugars, and available fraction of Cr in soil as well as Cr (VI and III) concentration in root and shoot tissues of maize plant. In addition to this, maize cultivar differences were also found in relation to their tolerance to Cr toxicity and cultivar P-1543 performed better over other cultivars in both soils. In conclusion, biochar application in tannery polluted soils could be an efficient ecofriendly approach to reduce the Cr toxicity and to promote plant health and growth.

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