WET-WET

22 January 2014

WET-WET
Gemata's long experience as world leader in leather finishing combined with in-depth research and extensive laboratory and tannery experimentation work has led to the development of a new through feed line, which eliminates interrupting the operation for the purpose of buffing.
It is well known that , when producing automotive split leathers, stucco roller coating of the crust would be employed followed by drying and then the skins would be taken manually to be buffed. The top coating would then complete the finishing process.
Gemata has thus engineered a finishing system designated to Wet Wet to simplify the above method. Such a line consists of roller coater Jumbostar fitted with a special stucco application cylinder (1) unto crust, then conveyor belt feeding a Megastar roller coater fitted with G type base coat application cylinder (2), still on wet leather. The combined functions of the spreader and the helicoidally engraved roller of the Megastar allow a homogeneous deposit of the base coat unto a smooth leather surface.
Then, a transfer conveyor follows to a 3-section Stardrier. Thanks to this processing many advantages are obtained. First of all, the buffing process, which is a time consuming method is being eliminated ; not only, the leather surface becomes smoother. The second advantage is the elimination of one drying passage thus ensuring economic savings and giving a natural-looking touch to the leather. The film resistance obtained with the Wet-Wet operations allows to fulfill the printing operations at higher pressures and temperatures and it does not disappear during the wheel make up processing. At the end, colour and top coating is carried out on a Topstar coater (3 and 4) transferred through a conveyor from the drier. Final drying is conveyor connected to another 3-section dryer. A final conveyor would deliver the goods to an appropriate stacking machine. The leather is ready for embossing and the final coating operations.



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