Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 111 for “"Leather"”.
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The use of scrap leather for artificial leather soles
Thesis (B.S.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 1943.
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Metal induced degradation of leather
Large quantities of leather waste are generated from manufacturing processes and disposal of leather goods. Environmental directives encourage diversion of solid waste from landfills through viable recycling methods. Since leather is resistant to microbial degradation, direct recycling of leather …
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Biodegradation of leather solid waste
Waste management in the leather industry worldwide is an issue of major importance for both solid and liquid wastes. It has been recognised that there are major environmental impacts from the poorly managed disposal of such wastes and these have a clear health impact upon human society. Within …
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Leather Futures: How leather can be used as a sustainable material of choice for the future
… of this research by practice determines how leather can be used as a sustainable material of choice for the future. Using a design-led methodology, this research develops knowledge for guidelines for the sustainable practice in this traditional industry, in order to make leather a material of …
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Rapid vegetable tanning of heavy leather
Thesis: M.S., Massachusetts Institute of Technology, Department of Chemical Engineering, 1936
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Phenolic reactions for leather tanning and dyeing
… collagen, the resulting pigment is bound to the leather in a covalent tanning manner. Therefore, the leather becomes coloured by a lightfast pigment, which is firmly fixed. It appears to be a feature of this type of stabilising mechanism for collagen, the creation of a polyphenol matrix around …
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Constructing leather: professional and consumer accounts and experiences
… one of the oldest and most widespread materials, leather has taken a multitude of forms and has accumulated manifold meanings. As will be illustrated, leather-related understandings apply not only to the material itself, but also to the conditions of its production and the wider implications of …
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The influence of power ultrasound on leather processing
… cm2) on the dyeing, fatliquoring and tanning of leather have been investigated and the mechanisms whereby ultrasound influences these processes were elucidated. Compared with a conventional process, ultrasonic dyeing can either shorten the dyeing time by 40-70% or facilitate low temperature …
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Leather inspection and characterization using non-destructive techniques
Leather is a widely used component of many products such as shoes, car seats, garments and other leather goods. Because it is a natural material, a tanned hide will contain visual and hidden flaws. In addition, its mechanical properties vary over the hide. At present, hides are inspected and …
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The mechanical properties of leather in relation to softness
The deformation behaviour of chrome tanned crust leather (with or without fatliquor) and finished leather has been measured in three-point bend, tensile and compression tests. Relations between the experimental results and the perceived softness of the leather were investigated. The instrumentally …
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Deformation, yield, relaxation and recovery in partially processed leather
… the rheological behaviour of part processed leather in order to improve area yield. Rheological behaviour was characterised in uniaxial tests by measuring the stress-strain relationship, the immediate and recovered set and stress relaxation. The influence of moisture content, time under …
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UV curable powder coatings for the finishing of leather
… and highly flexible substrates, such as leather. The developed powder coating film had good abrasion and adhesion properties. The concepts applied in this work were based on the adjustment and control of the degree of crystallinity of hinders by three ways: (i) formulating different …
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Study of Neem bark tannins for the leather industry
… tannin tanned and crosslinked hide powder and leathers was found to be paralleled to mimosa tannin extract. Studies of the physical properties of tanned and retanned leathers showed corn pai.ahility of micem bark tannins with mimosa tannin extract
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The grinding of leather and other non-metallic materials
Thesis (B.S.) Massachusetts Institute of Technology. Dept. of Mechanical Engineering, 1952.
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The role of leather science and technology in heritage conservation
… the essential knowledge and understanding of leather science and technology required before objects of leather and other materials made from skin can be treated safely and effectively.<br/><br/>All the author's previous publications had been appropriately peer reviewed. The papers from …
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The impact of the leather manufacturing process on bacterial growth
Hides and skins used as a raw material for leather manufacture may be contaminated with various microbial species including potential pathogens. Many bacterial species such as Bacillus, Staphylococcus, Micrococcus and Pseudomonas were isolated from raw hides/skins, and hides/skins at different …
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