Volume 3, no 3
Alternative Process for Tanning Leather
Viorica DESELNICU, Veronica BOCU
ABSTRACT. Recent years have seen an ever-increasing performance for good consumer goods which impact on human life, retaining the style and original benefits on nature. Improving lifestyles lead to greater pressure on the environment but at the same time, demands to preserve the environment grow too. This is also due to the increasing number of consumers who like to choose products and manufacturing processes so called natural and ecological. The results have been felt along many industries, the leather industry probably more then most. The deep interest in clean technologies of tanners has lead to increased efforts to develop chrome-free tanning agents. But chromium is considered toxic for human health. This paper will present an innovative tanning system, which considerably reduces environmental problems. This includes synthesis of a new tanning agent, a new tanning system and characterization of “Wet White” leather.
KEY WORDS: innovative tanning system, leather industry, a new tanning agent, “Wet White” leather
The Study of the Dimensional Changes of the Adhesives from the Liquid to a Solid Film
Florentina HARNAGEA, Viorica ROŞCULEŢ
ABSTRACT. The paper present the results obtained by research of dimensional changes which over when adhesive solution pass from a liquid state with a solid state by monitor sing the remanent contraction of the adhesive film. Considering the solid content of the solution and the time for obtaining a solid film were established functional relation regarding the influence of setting time of solid films on remanent contraction for different concentrations of adhesive solution and the simultaneous influence of both parameters also.
KEY WORDS: dimensional changes, adhesive solution, remanent contraction, simultaneous influence
Methods and Techniques of Identification and Measurement for Toxic Substances from Rubber Products Used in the Food and Toys Domain, According with EU Settlements
Laurenţia ALEXANDRESCU, Zenovia MOLDOVAN
ABSTRACT. Some studies and research managed that almost all chemical components for manufacturing rubber products can be considered almost harmless. But there are some substances which are necessary from the technological point of view, but with toxic effects over the environment and health, for which there are some quantity limits. In almost EU countries there are lows for protecting workers, the environment and the public. For the integration of Romania in EU is necessary for these lows to become active in our country too. For this is necessary to make some methods controlling the products. In our country there aren’t studies about controlling products in food and toys department.
KEY WORDS: chemical components, rubber, environment, method controlling the products
Optimization of Leather Goods Regarding Material Consumption
Marina MALCOCI, Voinea COCIU
ABSTRACT. The paper presents a case study aiming to optimize the material consumption in leather goods processing. The results are presented in table forms. Results the analyses of have allowed the formulation of an empirical relation for consumption rate.
KEY WORDS: optimization, materials, consumption, leather goods processing
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