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Understanding the Press Felt Process

Understanding the Press Felt Process

The pioneering conception used in felt manufacturing is known as the press felt process. Wool fiber is the ingenious structural model employed in the whole process. The wool fiber begins splitting apart from the main core where short fiber strands are formed. The interlocking and the process of binding these strands together forms the Felt.

Matting, which produces a batt is the first process which involves layering of the wool fibers. Plying is then done on the batts formed with respect to the density of the felt desired. The next step which is steaming is done to the batts before being passed to a hardener where it is pressed. The fiber strands are finally hardened through a mechanical process where the batts are interlocked together resulting to the initial stage where wool felt is the resulting output.

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Fulling, which is a similar mechanical process is then done to the wool felt. The desired density of the wool felt is achieved by passing the wool felt through the fuller which is a series of rollers. After this drying is necessary to ensure the felt is free from any kind of moisture. Steaming is used to obliterate any moisture content and wet treatments that may have been used on the felt.

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Hybrid technologies have recently been rolled into the US felt processes. This usage of these technologies have resulted in production of diverse densities and various felt grades which confirms the US felt production to be efficient. Set standards and specifications by SAE have been well embraced in these felt press processes. International standards and military specifications have also been clearly met as these US Felts products have an ISO certification as well as the government approval seal. These standardization and these conformity grants the end-users a wide variety of applications at their disposal.

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