MXPA00002463A - Applicator brush - Google Patents

Abstract

The present discloses an applicator or brush having a twisted wire core and a bristle portion that has a square cross-section. The brush portion is formed from a plurality of plastic filaments. Each plastic filament is crimped medially of its ends by the wire core. The crimping action causes the filament ends to form bristle ends that flare outwardly in various directions from the wire core so as to provide a uniform bristle end distribution throughout the bristle portion. The filament density is about 45 to 60 filaments per helical turn. Each filament has a hollow central core from which two or more bent flanges extend. The area along the central core between adjacent flanges holds mascara by surface tension.

Description

APPLICATOR BRUSH RELATED APPLICATION This application is a continuation-in-part of the application, Serial No. 09 / 267,959, filed on March 12, 1999, entitled Applicator Brush and assigned to the same transferee as the one in this application. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cosmetic applicator and, in particular, to an applicator for applying liquid cosmetics, such as the mascara, for eyelashes or other body parts. The general purpose of an applicator or brush is to take an adequate supply of material, such as the mask, from a container, carry it from the container's container without dripping, and apply it evenly to the particular area of the body, such as, for example, the eyelashes. This needs to be achieved without depositing lumps, lumps or smudges of the material onto the lashes. To do so, it is important that the ends of the bristles - of the applicator have a distribution that allows the taking of a suitable provision REF .: 32981 of material and that retains it until it is applied to the eyelashes. It is also important that the filaments forming the ends of the bristles have sufficient structural strength to match the material or mascara through the eyelashes. A conventional mask brush has a twisted wire core or core and a part of bristles. The part of the bristles has a plurality of plastic filaments. Each plastic filament is held by the wire twisted centrally at its ends to form the ends of the bristles. 2. Description of the Prior Art US Pat. No. 4,887,622 to Gueret is directed to a brush of this type, in which the ends of the bristles extend radially from the core or center of the wire as a helical formation and they are positioned in such a way, to avoid interference of the ends of the bristles of a turn or twist with the ends of the bristles of the adjacent turns. Each filament has a diameter from 0.10 to 0.25 mm. The number of filaments per helical turn of the core or center of the wire is approximately 10 to 40.

U.S. Patent No. 4,993,440 to Gueret is also directed to a mascara brush having a core or center of the twisted wire and a portion of bristles. The bristle part has a plurality of plastic filaments. Each plastic filament is held by the wire twisted centrally at its ends to form the ends of the bristles. This patent also provides that each filament has one or more U-shaped or V-shaped capillary channels formed on its surface. The sides of the U-shaped or V-shaped capillary channels converge lightly with each other toward their proximal free ends before they again diverge outward to an area where the channel extends into the surface of the filament. The ends of the bristles are arranged to extend radially from the core or core of the wire and are distributed to avoid interference of the ends of the bristles of one turn with the ends of the bristles of the adjacent turns. U. A. Patent No. 4,733,425 to Hartel, et al. it is directed to a brush of the type described above in the patent of E. U. A. No. 4, 887,622. In this Hartel patent the plastic filament of the ends of the bristles widens outwardly in various directions when held by the core or center of the twisted wire. This outward widening forms a distribution pattern of the end of the sow that is uniform in the front of the sow. The filament is described as a hollow or cavity or as a tubular polyamide or one having a non-circular cross section.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an improved applicator that takes an adequate supply of liquid and applies it uniformly without overlaying it.

Another object of the present invention is to provide such an improved applicator that is used as a mascara applicator or as a brush to apply a liquid cosmetic, such as the mascara.

It is further an object of the present invention to provide such an improved applicator having a uniform distribution at all ends of the bristles, and a filament of a density of about 45 to a density of about 60 filaments per helical turn.

These and other objects of the present invention will be achieved by an applicator according to the present invention having a twisted wire core or center forming a plurality of helical turns. The applicator includes a part of bristles that is formed of a plurality of filaments, with each filament being crimped centrally from its ends by the core or core of the wire. The ends of the crimped filament form the bristles or ends of the bristles that widen outward in various directions from the core or core. This widening forms a uniform distribution in all the ends of the bristles of the part of the bristles. The density of the filament in the part of the bristles is approximately 45 at a density of approximately 60 filaments per helical turn. Each filament has a central core or core with at least two separate spaced tabs extending radially. In some modalities, at least one of the tabs is bent. In other embodiments, at least one of the tabs extends radially from the core or core in a non-linear manner. - "^" Preferably, the central core or core is a recess or cavity The area along the core or core between the adjacent flanges holds the mask by surface tension In a preferred embodiment, the part of the bristles has in general, a square cross-section: At one free end of the brush, the part of the bristles narrows to a circular cross-section.

BRIEF DESCRIPTION OF THE DRAWINGS Other features, advantages and additional objectives of the present invention will be understood by reference to the following specification in conjunction with the accompanying drawings, in which reference characters are denoted as structure elements and: 1 is a side elevational view of an applicator according to the present invention; Figure 2 is a bottom view of the applicator of Figure 1; Figure 3 is an exploded view of the section defined by three lines of the applicator of Figure 1; Figure 4 is a cross-sectional view of a row © of the applicator of Figure 1; and Figures 5 to 15 are cross-sectional views of alternative filaments for the applicator of Figure 1.

DESCRIPTION OF THE INVENTION Referring to the drawings and, in particular, to Figure 1, there is provided an applicator or brush according to the present invention, represented generally by the reference number 10. The applicator 10 has a core or center (core) 12, a bar 14, a lid 16 and a part of bristles 20. The core or center (core) 12 is formed of a U-shaped length of wire that is twisted around itself. The wire for the core or core of the wire 12 is preferably a metallic wire. The bar 14 covers a part of the core or core of the wire 12 that extends to the right of the bristle portion 20. The bar 14 is secured to this part of the core or core of the wire 12 by an appropriate fastener, such as when coining and sealing hot. The bar 14 extends towards the lid 16 and is suitably secured to the lid by conventional means. Referring to Figures 1 and 3, the part of the bristles 20 is formed by a plurality of filaments 30. The part of the bristles 20 has a first end 24 in the direction of the bar 14, and a second end or free distant end. 26 opposite the first end. The second end 26 has a narrowing 28. In a basic manner, the part of the bristles 20 generally has a square and uniform cross section 21 with a narrowing 28 having generally a circular cross-section 29, as is clearly shown in Figure 2. To obtain the square section 21, the ends of the bristles 22 are trimmed by means of a conventional cutter. In the cutting operation, the edges or corners are rounded to give a comfortable application. Each filament 30 is preferably formed of a plastic filament. Each plastic filament 30 is curled in the middle of its ends by the core or center of the wire 12 whereby its ends form the ends of the bristles 22. For example, the ends of the bristles 22 'are formed by a filament 30' that It is curled by the core or core 12 as shown in Figure 3. The material and the shape of the bristles is such that the curling action causes the ends of the bristles 22 'to expand outwards radially from the soul or center 12 in several directions. The effect of the multidirectional widening of the ends of the bristles 22 is that they uniformly fill the spaces between the adjacent turns of the core or core 12. This gives the effect of a uniform distribution of the ends of the bristles 22 throughout the part of the bristles 20. The density of the filaments 30 in the part of the bristles 20 is preferably in the range of about 45 to about 60 filaments per helical turn. A helical turn is a turn of the core or center 12. More preferably, the density is in the range of about 48 to about 60 strands per turn. More • preferably, the density is in the range of about 45 to about 55 filaments per helical spin. it has been found that a density of this range gives a uniform application of mascara without forming pieces or mascara lumps on the eyelashes or on the part of the bristles 20. In use, the brush 10 is held by the lid 16 and is placed in a reservoir of liquid material, such as the mask. The brush is removed from the reservoir through a narrow hole for a cleaning action to obtain an appropriate mask distribution over the part of the bristles 20 to apply to the eyelashes or other hairs. Referring to Figure 4, each of the plurality of bristles 30 generally has a central core or core 32 with a hole 38 there and through, and separate spaced portions or tabs 33, 34, 35 and 36 that extend outward from the periphery or outer surface of the soul or center. The hole 38 can be a circular hole.

Preferably, the hole 38 is generally an oblong-shaped hole. The central core or core 32 has a square configuration in its entirety, except for the externally extending portions of the flanges 33, 34, 35 and 36. As shown in Fig. 4, the parts of the flanges 33, 34, 35 and 36 are formed on what would otherwise be the edges of the square-shaped core or core. It has to be understood that although four tabs are shown in Figure 4, the present invention encompasses embodiments having two or more such tabs. The flanges 33, 34, 35 and 36 are bent in the same direction around the periphery of the central core or core 32. The area along the periphery between the adjacent pairs of flanges 33, 34, 35 and 36 is the area 37 each area 37 holds or retains the mask by surface tension. The maximum dimension of the cross section of each filament 26, and therefore of each sow , is from about 0.08 to about 0.18 mm.

Preferably, the maximum dimension of the cross section is from about 0.10 to about 0.15 mm. The filaments 26 for each pair of bristles 30 shown in Figure 4 can be obtained commercially from Dupont De Nemours Corporation. Referring to Figures 5 to 15, a plurality of alternative filaments is provided according to the invention. Referring first to Figure 5, a filament 50 has a central core or core 52 with a first pair of approximately identical rolled flanges 53 and 55 extending radially in approximately opposite directions. A second pair of approximately identical tabs 54 and 56 also extend from the core or core 52 in opposite directions. Referring to Figure 6, a filament 60 has a core or core 62 with a first pair of approximately identical rolled tabs 64 and 66 extending radially in approximately opposite directions. A second pair of approximately identical T-shaped tabs 63 and 65 also extend from the web or center 62 in opposite directions. Referring to Figure 7, a filament 70 has a core or core 72 with a first pair of approximately identical rolled tabs 74 and 76 extending radially in approximately opposite directions. A second pair of approximately identical coiled tabs 73 and 75 also extend from the core or center 72 in opposite directions. Referring to Figure 9, a filament 80 has a core or core. 92 with radially extending T-shaped tabs 93, 94, 95 and 96. The flanges 93 and 95 extend from the core or center 82 in roughly opposite directions and the flanges 94 and 96 extend from the soul or center 92 in opposite directions approximately. Referring to Fig. 10, a filament 100 has a central core or core 102 with rolled tabs extending radially 103, 104, 105, and 106. The approximately identical tabs 103 and 105 extend from a core or center. 102 in approximately opposite directions and approximately identical tabs 104 and 106 extending from the core or center 102 in approximately opposite directions. Referring to figure 11, a filament 110 has a central core or core 112 with rolled tabs extending radially 113, 114, 115 and 116. Approximately identical tabs 113 and 115 extend from the core or center 112 in approximately opposite directions and the approximately identical tabs 114 and 116 extend from the core 112 in opposite directions approximately. Referring to Figure 12, a filament 120 has a core or core -122 with radially extending tabs 123, 124, 125 and 126. Approximately identical rolled tabs 123 and 125 extend from the core or core 122. in approximately opposite directions and the approximately identical fishtail tabs 124 and 126 extend from a core or center 122 in approximately opposite directions. Referring to Figure 13, a filament 130 has a central core or numerals 132 with radially extending rolled tabs 133, 134, 135 and 136. The adjacent tabs 135 and 136 are wound in opposite directions toward each other. . All the other adjacent tabs are wound in the same direction. For example, the adjacent tabs 134 and 135 are wound in the same direction. Referring to Figure 14, a filament 140 has a central core or core 142 with radially extending fishtail tabs 143, 144, 145 and 146. Approximately identical flanges 143 and 145 extend from the center or core 142 in approximately opposite directions and approximately identical flanges 144 and 146 extend from the center or core 142 in approximately opposite directions. Referring to Fig. 15, a filament 150 has a central core or core 152 with radially extending flanges 153, 154, 155 and 156. Approximately identical rolled flanges 153 and 155 extend from a core or center 152 in approximately opposite directions, and the approximately identical fishtail tabs 154 and 156 extend from the core or center 152 in approximately opposite directions. The flanges 153 and 155 are rolled toward the adjacent fishtail shaped tab 154 and wound outwardly to the adjacent fishtail flange 156. Several of the flanges extend non-linearly from their respective souls or central centers. For example, the T-shaped tabs 63 and 65, shown in Figure 6, extend non-linearly from the central core or core 62 and the cruciform tabs 83 through 86, shown in Figure 8, extend from non-linear way from the core or central center 82. The present invention has to be described in this way with particular reference to the preferred forms of its content, it will be obvious that several changes and modifications can be made in that place without deviating from the spirit and the scope of the present invention as defined in the appended claims.

It is noted that in relation to this date, the best method known by the applicant to carry out the aforementioned invention, is the conventional one for the manufacture of the objects or products to which it refers.

Claims (36)

1. CLAIMS Having described the invention as above, the content of the following claims is claimed as property: 1. An applicator for applying liquid material to a part of the body, characterized in that they comprise from; a twisted core or center which at the same time forms a plurality of helical turns; a part of bristles formed of a plurality of filaments, each of the plurality of filaments is crimped in between by the core or center to form the ends of the bristles that widen outwardly from the core or core of the wire, wherein The ends of the bristles form a uniform distribution of the ends of the bristles in the whole part of the bristles, where the part of the bristles has a filament density of approximately 45 to 60 filaments per each turn of the bristle. plurality of helical turns; and each of the plurality of filaments has a core or core with a plurality of projections or tabs that extend outward and are separated, each of the plurality of projections or tabs is bent in the same direction, wherein the core or core has a periphery, which between the adjacent tabs holds the liquid material by surface tension.
2. 2. The applicator according to claim 1, characterized in that the liquid material is a mask, wherein the part of someone's body is the eyelashes.
3. 3. The applicator according to claim 1, characterized in that the core or core is hollow.
4. 4. The applicator according to claim 3, characterized in that the central core or core has an oblong recessed shape.
5. 5. The applicator according to claim 3, characterized in that the part of the bristles has a square cross section in general.
6. The applicator according to claim 3, characterized in that each of the plurality of filaments has a maximum cross-sectional dimension of about 0.08 to about 0.18 mm.
7. 7. The applicator according to claim 6, characterized in that the maximum cross-sectional dimension is about 0.10 to 0.15 mm.
8. 8. The applicator according to claim 1, characterized in that the part of the bristles has a narrowing at one end.
9. 9. The applicator according to claim 1, characterized in that the part of the bristles has in general a square cross section with a narrowing that generally has a circular cross section.
10. 10. The applicator according to claim 1, characterized in that the density of the filaments is approximately 48 to 60 filaments for each helical turn.
11. 11. The applicator according to claim 1, characterized in that the density of the filaments is approximately 45 to 55 filaments for each helical turn.
12. 12. The applicator according to claim 1, characterized in that each of the plurality of filaments generally has at least two separate flanges extending outwardly from the core or core.
13. 13. The applied.! - in accordance. with claim 1, characterized in that the filament is plastic.
14. 14. An applicator for applying mascara to the eyelashes, characterized in that it comprises: a core or center formed by stretches of twisted wire that at the same time forms a plurality of helical turns; a part of bristles formed of a plurality of filaments, each of the plurality of filaments having a pair of ends, each of the plurality of filaments being curled in the middle of the pair of ends by the core or center, so that it pair of ends of each filament form a pair of ends of the bristles that widen outward in various directions from the core or center to form a uniform distribution of the end of the bristle throughout the part of the bristle, where the part of the bristle the bristle has a filament density of about 45 to 60 filaments per turn of a plurality of helical turns, the part of the bristles has a narrowing at one end, the part of the bristles generally has a square cross section with a constriction having generally a circular cross section; and -. * - each of the plurality of filaments has a core core or core with a plurality of protrusions or flanges extending outward and apart, each of the plurality of flanges being bent in the same direction, the core or central core has a periphery and the periphery between the adjacent flanges holds the mask by surface tension.
15. 15. An applicator according to claim 14, characterized in that the plurality of filaments are each made of plastic.
16. 16. An applicator according to claim 14, characterized in that the density of the filaments is approximately 45 to 55 filaments per turn of a plurality of helical turns.
17. 17. An applicator for applying liquid material to a part of someone's body, characterized in that it comprises: a twisted core or center which at the same time forms a plurality of helical turns; a part of bristles formed of a plurality of filaments, each of the plurality of filaments is crimped in between by the core or center to form the ends of the bristles that widen outwardly from the core or core of the wire, wherein ends of the bristles form a uniform distribution of the ends of the bristles in the whole part of the bristles, where the part of the bristles has a filament density of approximately 45 to 60 filaments per one turn of the plurality of bristles. helical turns; and at least some of the plurality of filaments has a core or core with a plurality of projections or flanges that extend radially and are spaced apart, at least one of the plurality of "flanges is bent, wherein the core or core central. It has a periphery, which periphery between the adjacent tabs holds the liquid material by surface tension.
18. 18. The applicator according to claim 17, characterized in that the liquid material is mascara, and where the part of someone's body is the eyelashes.
19. 19. The applicator according to claim 17, characterized in that the core or core is hollow.
20. 20. The applied? - in accordance with claim 19, characterized in that the central core or core has an oblong recessed shape.
21. 21. The applicator according to claim 19, characterized in that the part of the bristles has a square cross section in general.
22. 22. The applicator according to claim 19, characterized in that each of the plurality of filaments has a maximum cross-sectional dimension of about 0.08 to about 0.18 mm.
23. 23. The applicator according to claim 22, characterized in that the maximum cross-sectional dimension is about 0.10 to 0.15 mm.
24. 24. The applicator according to claim 17, characterized in that the part of the bristles has a narrowing at one end.
25. 25. The applicator according to claim 17, characterized in that the part of the bristles has in general a square cross section with a constriction having generally a circular cross section.
26. 26. The applicator according to claim 17, characterized in that the density of the filaments is approximately 48 to 60 filaments for each helical turn.
27. 27. The applicator according to claim 17, characterized in that the density of the filaments is approximately 45 to 55 filaments for each helical turn.
28. The applicator according to claim 17, characterized in that at least some of the plurality of filaments generally have at least four separate projections or flanges extending radially from the core or core.
29. 29. The applicator according to claim 17, characterized in that the filament is made of plastic.
30. 30. An applicator for applying mascara to the eyelashes, characterized in that it comprises: a core or center formed by stretches of twisted wire that at the same time forms a plurality of helical turns; a part of bristles formed of a plurality of filaments, each of the plurality of filaments having a pair of ends, each of the plurality of filaments being curled in the middle of the pair of ends by the core or -.- center, by what. the pair of ends of each filament form a pair of ends of the bristles that widen outward in various directions from the core or center to form a uniform distribution of the end of the bristle in the whole part of the bristles, wherein the part of the bristles has a filament density of approximately 45 to 60 filaments per turn of a plurality of helical turns, the part of the bristles has a narrowing at one end, the part of the bristles generally has a cross section square with a narrowing having generally a circular cross section; Y at least some of the plurality of filaments has a core or core with a plurality of projections or flanges extending radially and spaced apart, at least one of the plurality of flanges is bent, the central core or core has a periphery and the periphery between the adjacent flanges holds the mask by surface tension.
31. 31. The applicator according to claim 30, characterized in that the plurality of filaments is each made of plastic.
32. 32. The applicator according to claim 30, characterized in that the density of the filaments is approximately 45 to 55 filaments per turn of a plurality of helical turns.
33. 33. The applicator according to claim 30, characterized in that the plurality of flanges includes at least two approximately identical flanges extending radially from the central core or core in approximately opposite directions.
34. 34. The applicator according to claim 19, characterized in that a plurality of projections or flanges includes at least two approximately identical projections or flanges extending radially from the central core or core in approximately opposite directions.
35. 35. An applicator for applying liquid material to a part of someone's body, characterized in that it comprises: a twisted core or center which at the same time forms a plurality of helical turns; a part of bristles formed of a plurality of filaments, each of the plurality of filaments being curled in the middle by the core or center to form the ends of the bristles that widen outwardly from the core or center, - where the ends of the bristles form a uniform distribution of the ends of the bristles in the whole part of the bristles, where the part of the bristles has a filament density of approximately 45 to 60 filaments for each one of the plurality of turns. helical; and at least some of the plurality of filaments has a central core or core with a plurality of radially extending flanges and spaced apart, at least one of the plurality of flanges extending radially in a non-linear manner , wherein the core or core has a periphery, which periphery between the adjacent flanges holds the liquid material by surface tension.
36. 36. The applicator according to claim 35, characterized in that the core or The central core is hollow, and wherein at least one flange has an approximate cross-section of the group consisting of the cruciform shape and the T-shape.