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US 2010/0314066 A1Published application
Press fabric seam area
AssigneeVoith Patent GmbH
InventorsRobert Crook, Sanjay Patel, Clifton Wilder
Life of this patent
Estimating the term…
Abstract
A pinseam press fabric is smoothed in the area of the seam by depositing polyurethane particles having a size of about 1 to 500 micrometers across the seam of the felt defined by the ends of the fabric. The polyurethane particles are drawn into the seam end by the application of a vacuum. Once the particles are deposited, the fabric is heated so that the polyurethane particles melt to form a polymeric matrix.
Claims5
A pinseam press fabric comprising:
- an elongated press fabric joined at its ends of so that the fabric forms an endless belt capable of resisting tension, and
- polyurethane particles having a size of about 1 μ to 500 μ deposited across the seam of the belt defined by the ends of the fabric to a width of about 10 mm to about 30 mm, said polyurethane particles being pulled into the fabric across the seam by a vacuum and heated to adhere to the fabric forming a polymeric matrix.
Dependencies are inferred from the claim text.