Basic Level Tanning Course

BASIC LEVEL TANNING COURSE

LEARNING OBJECTIVES

Lecture 1 Overview of the Leather Industry

The relationship between the meat industry and the tanning industry

The different processing options available to tanneries

The factors that impact on the global tanning industry

Lecture 2 Structure of Different Animal Skins

The difference between a hide and a skin

The terms grain, hair follicle, fibre structure, angle of weave

The difference in skin structure between cattle hides, calfskins, sheepskins, goatskins, pigskins and some exotic skins

How skin structure can influence the properties of the leather produced from these different skin types

Lecture 3 Hide and Skin Defects

Defects on leather

How defects arise on leather at the different stages of the life cycle of a hide or skin

The damage defects do to hides and skins

How defects can possibly be prevented at the different stages of the life cycle of a hide or skin

Lecture 4 Preservation

The reasons for preservation

The different types of preservation methods

The damage that bacteria can cause on hides and skins

The conditions which promote the growth of bacteria

Lecture 5 Beamhouse Operations - Soaking

What the beamhouse is in a tannery

The order and processes involved in the beamhouse

The reasons for the soaking process and the changes that occur to the raw material during the soaking process

The types of chemicals used during the soaking process

Lecture 5 Beamhouse Operations - Liming and Fleshing

Why the liming process is carried out in the beamhouse

The chemicals used in the liming process

The difference between the hair burn and the hair save process

The difference between the paint unhairing and the sweating process for removing wool from sheepskins

Why the fleshing process is carried out

Why lime splitting is carried out

Lecture 5 Beamhouse Operations - Deliming, Bating, Degreasing and Bleaching

Why the deliming process is carried out and the chemicals used in the deliming process

Why the bating process is carried out and the chemicals used in the bating process

Why the degreasing process is carried out and the chemicals used in the degreasing process

Why the bleaching process is carried out and the chemicals used in the bleaching process

Lecture 6 Tanyard Operations

What the tanyard is in a tannery

The order and processes involved in the tanyard

The reasons for each tanyard process and the changes that occur to the raw material

Some of the defects which occur due to poor processing

Lecture 7 Tanning Testing

The different tests that are carried out in the beamhouse and tanyard

The reason why these tests are carried out

Typical results that could be obtained for these tests

Lecture 8 Post Tanning Operations

Why leathers are retanned, dyed and fatliquored

The drying and softening of leather

The different pre-finishing operations

The reasons why leather is finished

The way in which leather is finished