Abstract:
A brush head (32) including: a plurality of bristle tufts (21), each of which comprises a plurality of bristle strands having a free end (25) and a proximal end (23); a plurality of retention rings (50) each comprising an upper portion (51), a lower portion (53), an exterior wall (55) and an interior wall (57), and each configured to receive the proximal end of at least one of the plurality of bristle tufts, wherein at least one of the plurality of retention rings comprises a transverse projection (71, 72) extending from the exterior and/or interior wall of the retention ring; and an elastomeric matrix (30) comprising at least a portion of each of the plurality of retention rings and the proximal end of each of the plurality of bristle tufts.
Abstract:
A personal-care applicator comprises at least one stem having a proximal end including a handle and a distal end opposite to the proximal end and at least one bristled component attached to the stem, wherein the bristled component comprises a carrier and a plurality of bristles ultrasonically welded to the carrier and outwardly extending therefrom according to a pre-determined pattern, wherein the elongated carrier and the at least first plurality of bristles comprise ultrasonically compatible materials, and wherein the bristles are ultrasonically bonded to the carrier through a direct ultrasonic bond between a surface of the carrier and a lengthwise portion of each of the bristles.
Abstract:
A brush head for example a toothbrush head may have a plurality of cleaning elements which can differ from each other in at least one property. Nevertheless, the different cleaning elements have to be fastened by one of their ends in a brush head. The fastened ends may show thickenings which are produced by melting and optionally reshaping with a punching tool. By applying different amounts of heat to the ends to be molten individual thickenings which may meet individual requirements can be produced for each of the different cleaning elements.
Abstract:
Die Erfindung betrifft einen Borsteneinsatz (10), insbesondere für einen Pinsel, gebildet durch mindestens ein Paket mit einem Anteil an Kunststoffborsten (12), deren Enden so miteinander verschmolzen sind, dass ein selbsttragendes Halteelement (14) gebildet ist. Die Erfindung betrifft auch einen Pinsel mit einem solchen Borsteneinsatz (10) und ein Verfahren zur Herstellung eines solchen Borsteneinsatzes.
Abstract:
Die Erfindung bezieht sich auf eine Borstenware mit einem Borstenträger 12, in dem eine Mehrzahl Borstenbündel 8 aus Borsten 6 befestigt sind, die aus einem thermoplastischen Kunststoff bestehen. An ihrem befestigungsseitigen Ende weisen die Borstenbündel 8 eine durch Verschmelzen gebildete Verdickung 6 grösseren Querschnitts als dem Querschnitt des Borstenbündels 8 auf, mit der sie in einer entsprechenden Ausnehmung des Borstenträgers 12 befestigt sind. Zwischen der Verdickung 6 und dem Borstenbündel 8 ist in dem sich an die Verdickung 6 anschliessenden Bereich eine Säule 7 etwa gleichen Querschnitts wie das Borstenbündel 8 gebildet.
Abstract:
Die Erfindung betrifft eine Zahnbürste mit einem Handgriff (2) und einem Kopfteil (1), an welchem Borstenfilamente (3) und wenigstens ein weichelastisches Reinigungselement (6) angeordnet sind. Erfindungsgemäss ist das wenigstens eine weichelastische Reinigungselement (6) an einem aus einem Hartmaterial bestehenden Trägerelement (5) angeordnet, welches mit dem Kopfteil (1) verbunden ist. Die Erfindung betrifft des weiteren ein Verfahren zur Herstellung einer solchen Zahnbürste.
Abstract:
Bristle stiffness is varied by allowing a support beam (22, 66, 80) that carries the bristles (54, 55, 68, 82, 84) to undergo torsional movement in response to brushing action. Torsional movement is achieved by allowing the support beam to be disconnected to the brush head along at least portions of the length of the support beam. In particularly preferred embodiments, brushes employing the varying stiffness techniques are made with bristle sub-assemblies that have at least one row of bristles connected to a base string or similar structure that functions as a support beam. The base string can be connected across an opening in the brush, and is thus connected at its opposite ends, or it can be connected at any number of spaced intervals, the number and length of spacing being selected to achieve a desired degree of stiffness.
Abstract:
A handle (10) for use in production of brushes by fusion. The handle is injection molded with a set of pre-formed holes. Each hole contains, on its bottom surface (19), a protrusion (21, 22, 23) of excess material. Bristles for the brush are heated to form a small fuse (36) at their ends. When the fused ends are inserted into the holes, material from the protrusion flows around the fuses, retaining them in the holes upon cooling.