Leather and Footwear Journal

Volume 3, no 2

Technological Management to Promote „Cleaner Production” in Leather Industry
- Victoria BRĂTULESCU, Luminiţa ALBU
  
  ABSTRACT. The goal of cleaner production is o fulfill our need for products in a sustainable way i.e. using renewable, non-hazardous materials and energy efficiently, while conserving biodiversity: cleaner production systems are circular and use fewer materials and less water and energy.
  
  KEY WORDS: cleaner production, non-hazardous materials, water, energy
New Methods of Leather Industry Sewage Treatment. Part II
- Gabriel ZĂINESCU, Victoria BRĂTULESCU
  
  ABSTRACT. This paper presents the main methods of removal or reduction of chrome amount from the wastewater in tanneries, with an example of the technique proposed by the authors. This method suggests recover the chrome from the solution wasted from the tanneries, by precipitating with calcium hydrate, this method having a lot of technical and economical advantages.
  
  KEY WORDS: removal or reduction of chrome, wastewater, calcium hydrate
Manufacturing of the High Performance Leathers for Professional Footwear
- Carmen GAIDĂU, Lucreţia MIU
  
  ABSTRACT. The paper presents the technological principals and the chemical auxiliary materials used for manufacturing of high performance leather for professional footwear with multirisk protection function.
  
  KEY WORDS: chemical auxiliary materials, performance leather, professional footwear, multirisk protection
Synergic Action of Antioxidants for Elastomer Based Composites
- Florica IONESCU
  
  ABSTRACT. On exploitation process, the products achieved from polymeric composites on elastomers basis are subjects to some physical and chemical factors, which determine important changes of mechanical and chemical properties. The use of some chemical compounds couples with role of macromolecular structure destruction inhibitors, determine by their synergetic action, the increase of rubber products degradation/proof/protection.
  
  KEY WORDS: polymeric composites, physical and chemical factors, chemical compounds
The Achieving of Porous Structures, by Expanding of Plastified PVC Films in Microware Medium
- Tudorel BĂLĂU MÂNDRU
  
  ABSTRACT. The paper presents the results of plastified PVC films blowing in microware medium as obtained by correlation between technological factors concerning the heating / expanding process (temperature, duration )and recipe factors (auxiliaries amount). The correlation lead to conclusions concerning the optimum auxiliary’s combination to be used at PVC films expanding.
  
  KEY WORDS: PVC films, heating / expanding process, PVC films expanding