When an animal is alive, its skin is soft, flexible, very tough and hard wearing: it has the ability to allow water vapour to pass out, but it will not allow water in. When the skin dies it loses these characteristics: if it is kept wet it rots, and if it is dried it goes hard and brittle. The process of tanning is to retain the skin’s natural properties, to stabilise its structure and at the same time to chemically process it so it will no longer be subject to putrefecation. Thus leather is animal skin that has been treated such that its natural properties are retained. Skin is made up of many bundles of interwoven protein fibres which are able to move in relation to one another when the skin is alive. When the skin dies, these fibres tend to shrivel and stick together. Essentially, the purpose of tanning is to permanently fix the fibres apart by chemical treatment, and to lubricate them so they can move in relation to one another. Well tanned leather, therefore, retains the properties of flexibility, toughness and wear. It also continues to ‘breathe’, allowing water vapour to pass through but remaining reasonably water-proof. It is this characteristic which accounts for the comfort of genuine leather shoes and clothing. In addition, the process of tanning imparts the advantage of resistance to heat. This is an important factor in many of the uses of leather. In conjunction with chemical processing, the tanner imparts colour, texture and finish to the leather, to enhance its appearance and suit it to today’s fashion requirements. The basic component of the skin is collagen, a fibrous protein.

Our training includes…

  • Introduction to Leather technologies – Market scenario
  • Tanning, Skinning, curing
  • Chrome and chemical treatment, Hazardous chemicals
  • Environmental chemistry
  • Quality control and lab testing

For more details (demo class & sample course material) contact the Course Co-ordinator, Pertecnica at 07842430123

Classroom Training

Pertecnica offers classroom training on Leather technologies. This is a 3 months training program which includes classes by faculty, video lectures, projects and case studies. At the end of the program, the student will get course completion certificate and a 3 months internship certificate.

  • Course fee: 36,000/-
  • Eligibility: BE / B Tech Chemical
  • Duration: 3 months