Page 67 - Damian Bogacki
P. 67

Tanning Proccess





                                                                                                                           Specifications On Tanning Of Leather


           All cow breeds can be used to make leatherbut other
           animals like sheep pigs and goats are also used around


           the world.
                                                                                                                                                                          69%                                     6%


           As long as the hide is clean it can be used. The age of
           the cow used depends on the size, breed and hair type


           but most will beslaughtered at two years of age which                                                       Percentage of
           is18 human years.                                                                                           Leather Sources:




           The process of tanning dates back 400,000years where                                                                                                            13%                                     11%


            it was mostlly used for shoes,clothing and shelter making.
           Leather was usedbecause of its natural toughness, resistant


           toscratches and tears and is easy to repair.                                                                                                                                   Other: 1%










                              Full  Grain
                                                        GRAIN                                                                                     Vegetable Tanning Process:




               Genuine Leather  Top Grain     GRAIN/ CORIUM                                                               Curing                Bringing moisture           Remove hair and            Defleshing
                                                                                                                                                                            Dehairing
                                                                                                                                                Rewetting
                                                    JUNCTION
                                                                                                                                                                                                       Remove flesh and
                                                                                                                           Dehydrate
                    Split Leather                      CORIUM                                                            Grading                back into the hide.       Veg Tanning                       fat layers.
                                                                                                                                                                           expose grain side.
                                                                                                                            raw hide
                                                                                                                           with salts.
                                                                                                                                                    Drying
                                                                                                                                                                                                       Pre Tanning

                                                                                                                          Sort based                 Remove               With natural tannins.       With natural tannins.
                                                                                                                            on grain,                moisture
                                                                                                                            quality,                and flatten
                                                        FLESH                                                              thickness                  leather.

                                                                                                                            and size.




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