摘要:
Described are methods of making a paint roller using an adhesive (135) made from a compound of polypropylene and calcium carbonate having between 5% and 66% calcium carbonate by weight. Described are methods of making a paint roller using preformed strips or core material (145) made from a compound of polypropylene and calcium carbonate having between 5% and 66% calcium carbonate by weight. Described are methods of making a paint roller using a composite cover material (125) made from a compound of polypropylene and calcium carbonate having between 5% and 50% calcium carbonate by weight. One or various compounds may be used to form portions of one or multiple components that make up the paint roller, including, for example, the thermoplastic strips, adhesives and/or the backing of a composite cover material. The materials can be assembled in a continuous manufacturing process.
摘要:
A reusable multi-strip laminate paint roller and method for manufacturing the same. The method comprising steps of advancing a first strip of polypropylene material about a mandrel (21); advancing a second strip of polypropylene about a mandrel in offset relation to the first strip (22); advancing a cover about the second strip of polypropylene (23); providing a first adhesive layer (preferably a liquefied polypropylene) between the first and second strips of polypropylene (6); providing a second adhesive layer between the second strip of polypropylene and the cover (6); and applying a compressing force upon the cover urging the cover toward the second strip and simultaneously urging the second strip toward the first strip (2, 23) thereby creating the continuous laminated paint roller. After forming of the continuous paint roller it is moved towards a cutter by a helical drive belt system (2). The continuously formed roller is then prefeably cut into lengths for movement to a finishing station, and then cut into finished sizepaint rollers.