Brush for use with a composition

Abstract

A brush suitable for use as part of a product dispensing container which includes various characteristics which provide desirable product performance during use.

Description

CROSS REFERENCE TO RELATED APPLICATION(S)[0001]This application claims priority to U.S. Provisional Application No. 61 / 490,133, filed May 26, 2011, the subject of which is hereby incorporated by reference in its entirety.BACKGROUND OF THE INVENTION[0002]Brushes of various materials and types have been known in the art. Brushes have been used to apply materials, smooth finishes, provide energy to surfaces, and the like. While there have been many uses of brushes, their basic design and configuration has remained fairly unchanged over time.[0003]Cosmetic brushes are also prevalent within the brush industry. These are often used to apply compositions, including powders, liquids, and other forms of beautifying products, to the skin. Shave preparation brushes are also known in the brush industry. These brushes are used in combination with shave preparations to apply and “froth” these preparations by entraining air within the compositions. Many brushes, including cosmetic and shave prepar...

AI Technical Summary

Benefits of technology

[0007]One aspect of the present invention provides for a brush comprising a base, and a plurality of bristles, said plurality of bristles having a distal end and a proximal end, wherein said distal end is attached to the base and said proximal end forms a skin contacting region; wherein said plurality of bristles have an average length of from about 0.1 to about 2 inches; wherein said plurality of bristles comprises at least one bristle having a diameter of from about 0.001 inches to about 0.01 inches; wherein said plurality of bristles comprises at least one bristle comprising a material having a young's modulus of from about 0.2 GPa to about 9 GPa; and wherein said brush has a bristle concentration of from about 0.5 bristle per mm2 to 25 bristles per mm2 Without intending to be bound by theory, it is believed that this type of brush can provide improved characteristics such as bristle response when applied to a surface such as skin.

[0008]Another aspect of the present invention provides for a brush comprising: a base having a top surface comprising a non-flat region, and a plurality of bristles, said plurality of bristles having a distal end and a proximal end, wherein said distal end is attached to the top surface of said base and said proximal end forms a skin contacting region. In one aspect the non-flat region comprises a concave region, wherein said plurality of bristles comprises at least one crimped bristle, wherein the at least one crimped bristle comprises a crimp depth from about 0.010 inch to about 0.020 inch, wherein said crimped bristle has a crimp frequency of from about 3 to about 7 crimps per inch, and wherein said brush has a bristle concentration of from about 1 bristle per mm2 to 25 bristles per mm2. The bristles can be single tufted. Without intending to be bound by theory, it is believed that this type of brush can provide less mess due in part to the presence of the concave region as well as the crimped bristles. Further, it is believed that this type of brush can provide enhanced performance during use, including aspects of improved foaming when used with post foaming gels.

Problems solved by technology

These brushes may produce an odor that is considered to be unacceptable by many consumers.

This entrainment of product results in unsatisfactory application of product, waste of usable product, as well as an increased opportunity for bacteria buildup.

One problem with these types of brushes is how they deform under pressure, such as when the brush is applied against a surface such as skin, and a force there applied onto the brush.

Many brushes may deform in an undesirable configuration, such as having bristles fold over or the entire brush bend to one side, or they may be undesirably stiff and / or create an unpleasant feel upon contact with skin.

Many of these brushes, however, may not provide the desired medium to agitate and foam a foaming composition, such as a shaving preparation.

Further, many brushes may be somewhat messy when used to agitate and foam the foaming composition.

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