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BASIC LEVEL FINISHING COURSE
BASIC LEVEL FINISHING COURSE
LEARNING OBJECTIVES
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 Crust Leather Production
What the beamhouse is in a tannery
The different process steps that take place in the beamhouse and the order in which they occur
The changes that take place to the raw material in the beamhouse
What the tanyard is in a tannery
The different process steps that take place in the tanyard and the order in which they occur
The changes that take place to the raw material in the tanyard
The difference between wet blue and wet white
The importance of the wetting back process
The reason why wet blue must be wet back properly
The effect of rechroming on wet blue
The importance of neutralisation prior to the main dyehouse processes
Why leather is retanned
The different types of retanning chemicals
Why leather is dyed
Different types of dyestuffs
Why leather is fatliquored
Some of the properties that fatliquors give to leather
What would happen if leather was not fatliquored
The different types of fatliquoring chemicals
How fatliquoring is done practically in the tannery
Why fixation is carried out at the end of the dyehouse processes
What would happen if fixation is not carried out
The importance of the final wash in the dyehouse
Why leathers are set out
How leathers are dried
Why leathers are conditioned
Why leathers are milled
Why leathers are staked
Lecture 3 Pre-Finishing Operations
The different types of defects that could be found on crust leather prior to it being finished
Why some leathers are buffed
Why some leathers are impregnated
Lecture 4 Introduction to Leather Finishing
Why leather is finished
The properties that a good finish should have
The different finish coats that are applied to the leather surface
The different chemicals that are used for finishing
Lecture 5 Application of the Finish
The different methods of applying the leather finish
The advantages and disadvantages of each application method
The different finish effects that can be achieved by each application method
Lecture 6 Mechanical Operations
Why some finishes are plated
Why some finishes are ironed
Why some finishes are embossed
Why some finishes are polished
Why some finishes are glazed
Why some finishes are milled
Lecture 7 Finishing of Various Leather Types
How to formulate finishing recipes
The ratios used in finishing formulations
Formulation of various recipes for finishing a range of different leathers
Possible problems if recipes are formulated incorrectly
Lecture 8 Leather Finish Testing
Why leather finishes are tested
How the leather is sampled
The correct test conditions
The different types of tests that are carried out on finished leather
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