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    • 2. 发明授权
    • System and method for conditioning paint-roller cover fabric
    • US10751928B2
    • 2020-08-25
    • US16790717
    • 2020-02-13
    • Chandra SekarSantosh Sekar
    • Chandra SekarSantosh Sekar
    • B29C53/60B29C53/82D06B1/14B29C48/09B29C53/62B29C65/00B29L31/32B32B1/08B05C17/02
    • A system and method are provided for conditioning paint roller cover fabric inline in a continuous paint roller manufacturing process. The system and method provide an inline fabric conditioning unit upstream of the point in the process that the paint roller fabric cover strip is wrapped about the outer side of the outer strip, the fabric conditioning unit including a fabric conditioning device that conditions the paint roller fabric cover strip as it is being fed towards the outer side of the outer strip. The fabric conditioning unit may be used to perforate the fabric, to remove loose fibers from the fabric side of the paint roller fabric cover, to buff the paint roller fabric, and to orient the paint roller cover fibers. The continuous paint roller manufacturing process includes steps of feeding an inner strip and an outer strip towards a mandrel, wrapping the inner strip and the outer strip about the mandrel in offset relation, applying a strip adhesive to at least a portion of an outer side of the inner strip and at least a portion of an outer side of the outer strip, feeding a paint roller fabric cover strip having a fabric side and a backing side towards the outer side of the outer strip, the fabric side comprising loose fibers and attached fibers, forming a paint roller tube by wrapping the paint roller fabric cover strip about the outer strip at a point in the process after the strip adhesive has been applied to the outer side of the outer strip such that the backing side contacts the strip adhesive, applying compression to the paint roller tube, and cutting the paint roller tubes into like lengths.
    • 7. 发明授权
    • System and method for coating paint-roller cover fabric in-line with a manufacturing process
    • US10596748B2
    • 2020-03-24
    • US15968476
    • 2018-05-01
    • Chandra Sekar
    • Chandra Sekar
    • B29C53/60B29C53/82D06B1/14B29C48/09B29C53/58B29C53/80B29C65/00B29L31/32B32B1/08B05C17/02
    • A paint roller manufacturing system includes a cover dispenser for continuously dispensing a windable width of paint roller cover fabric, a fabric supporting and advancing device for supporting the fabric and maintaining a width-wise dimension of the paint roller cover fabric as the fabric advances, a fabric coating applicator for applying a coating to the back side of the paint roller cover fabric while the fabric supporting and advancing device maintains the fabric in a width-wise dimension, and a compressing roller positioned downstream of the fabric coating applicator and configured to apply a compressive force on the coating after it has been applied to the back side of the paint roller cover fabric and while the fabric is supported by the fabric supporting and advancing device. In two-strip embodiments, first and second strip dispensers continuously dispense a first and second windable width of strip material. A guide system guides the first and second strip coming from the first and second strip dispensers to be wound about a mandrel and guides the coated paint roller cover fabric from the fabric supporting device to be wound about the first and second strips. An adhesive applicator is configured to apply adhesive on substantially all of the outer side of the first and second windable strips and positioned to apply adhesive to the outer side of the first and second windable strips upstream of a location where the coated paint roller cover fabric is wound about the first and second strips.