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				- Tanning Tanning History Development THE MANUFACTURING PROCESS between art and technology In Conceria Mastrotto’s factories, experience and professionalism, combined with the most advanced technology, produce over 5 million sqm of leather each year, which is then distributed all over the world. After reaching our leather tanning plants, raw leather is processed into millions of colored pieces, which will become shoes, jackets, bags, sofas, seats or whatever else the designers’ imagination will conceive. In these pages we will make a synthesis of the main phases of the manufacturing process in order to delineate the complex production path which is the outcome of the Mastrotto Group’s fi fty-year experience and constant scientifi c and technological research. 1 - SOAKING 2 - PRESSING 3 - SPLITTING 4 - SHAVING Water wash that removes impurities and creases from leather. Operation performed to remove the excess of water and to smooth leather. Mechanical operation performed to separate grain leather, the upper part, from split, the lower part. This operation is performed to give uniform thickness to the leather surface. 5 - TRIMMING 6 - DYEING 7 - DRYING 8 - CHAIN Leather is cut, selected and separated from the parts that are not suitable for use. Inside the drums leather undergoes a special treatment to obtain the preservation, softness and color required. This is the central phase of the process, a mixture of art and technology. Leather is dried in a vacuum system consisting of steel plates that suck out water through vacuum depression. Leather is hung onto a chain to get conditioned at room temperature. 9 - STACKING 10 - BUFFING 11 - DRY MILLING 12 - FINISHING Leather is smoothed and softened by means of a machine operating a mechanical beating. This is a phase (for split and nubuck only) during which the leather surface is slightly buffed with special abrasive paper to give a suede finish. Leather is further softened through mechanical shaking in humidity-regulated drums. Leather is made acquire the brightness, color and appearance desired. 13 - IRONING 14 - TRIMMING 15 - LABORATORY 16 - SELECTION This phase is used to give to the leather the brightness required. This operation is performed to give uniform and precise edging to the finished product. Physical-chemical tests are carried out according to international regulations and customers’ specifications. Leather is carefully inspected and selected according to quality, surface appearance and thickness. 17 - MEASURING 18 - FINISHED         PRODUCT         WAREHOUSE     Leather is measured with electronic precision instruments, then packed and shipped to customers. It is the area where the fi nished material is stored for the prompt delivery of samplings.
	NEWS 05/09/08 ▪ Nappacolors 10/12/07 ▪ CLASS IS IN SESSION AT GRUPPO MASTROTTO 12/10/07 ▪ GRUPPO MASTROTTO AT LINEAPELLE ASIA 09/10/07 ▪ GRUPPO MASTROTTO EXEMPLIFIES A SUCCESSFUL COMPANY, ACCORDING TO NEW BOOK   NEWS ARCHIVE    FAIRS 19/11/08 ▪ INTERAUTO 19-21 NOV. 2008   FAIRS ARCHIVE

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Mastrotto Group's divisions are: Conceria Mastrotto, Mastrotto Italia, Tecnoconciaria Italia, Linea Pelle, Elle-Pi, Duma.