JP4924977B2 - Application brush and method of manufacturing application brush - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a narrow-width application brush and a manufacturing method of the application brush facilitating the application by widely spreading the lateral width of a brush constituting a flat brush by an application pressure toward a nail plate, facilitating the manufacture of such an application brush, and capable of uniformly applying a cosmetic on a wide surface when applying the cosmetic such as manicuring liquid or a lip stick on a part of application such as a nail plate or a lip. <P>SOLUTION: The brush bristles made of chemical fibers are formed into a flat-shaped cross-sectional shape having a large slenderness ratio such as elliptical or track configuration and at the same time aligned lengthwise and crosswise, so that the brush is widely spread by the application pressure toward the nail plate or the like. The chemical fiber brush bristles are crushed flatly so as to easily align the length and the breadth in the cross sectional shape of the brush bristles. <P>COPYRIGHT: (C)2007,JPO&amp;INPIT

Description

  The present invention relates to an application brush for applying liquid cosmetics, solid cosmetics and the like. Specifically, the present invention relates to an application brush that can apply a wide surface without spots when applying cosmetics such as nail polish and lipstick to the nail plate and lips. Moreover, it is related with the manufacturing method of such an application brush.

  When applying cosmetics such as nail polish and lipstick on the nail plate and lips, it is known that a large area applied at once can be applied without spots. In view of this, a flat brush obtained by flattening a brush holding bracket has been used so that a wide surface can be applied at a time.

  However, since the conventional flat brush is assembled by simply aligning the length of the bristles, there is a limit to increasing the spread of the flat brush during application. Therefore, many types of brushes had to be prepared according to the area and shape of the coated body. Therefore, in recent years, as described in Patent Document 1 and Patent Document 2, a brush that can change the length of the brush by changing the direction of use with a single coating brush is provided.

JP 2000-253927 A Japanese Patent Laid-Open No. 2005-21215

  In Patent Literature 1, the brush tips are aligned, and the opening edge is held and fixed in the inclined concave portion. Therefore, the strength of the firmness at the end of the hair varies depending on the direction of the force acting on the brush, that is, the direction in which the application brush is used. Therefore, by changing the direction of use of the brush on the application surface, application to a wide area and application to a narrow area can be properly used with one application brush. However, the contact area between the brush and the nail plate in Patent Document 1 is obtained by extending the contact area in the length direction of the brush and sliding left and right as it is. However, moving the application brush laterally with respect to the extending direction of the brush further bends the brush in the lateral direction, which makes the application operation unstable.

  Patent Document 2 has a substantially square opening edge, and is held and fixed to an arcuate opening edge extending in the axial length direction so as to face each other. Therefore, the brush can change the direction of the force acting on the tip to the left and right along the opening edge so that the movement of the brush near the center to the left and right can contribute to the spread of the brush. In the case of Patent Document 2, since the brush arranged on the outside is longer than the brush arranged on the center side, it is easy to bend. Therefore, although it is suitable when applying nail polish to the surface of the nail plate curved symmetrically, a brush that is delicately applied and placed on the wide outer side and easily bent is used, which makes the application operation unstable. .

  The present invention has been made in view of such problems, and an object of the present invention is to provide an application brush that can greatly widen the width of the brush with the application pressure to the nail plate or lips. Moreover, the method of manufacturing such an application brush is provided.

The application brush of the present invention is intended to achieve the above object, and the first aspect thereof is that the cross-sectional shape of the chemical fiber brush hair is a flat shape such as an ellipse or a track shape having a large vertical and horizontal size ratio. By aligning the horizontal and vertical cross-sections of the hair, the brush hair is greatly spread in the horizontal direction by the application pressure when applying cosmetics or the like.

  The second aspect of the present invention is a method in which the original cross-sectional shape of the bristle made of chemical fiber is circular, and the brush composed of the circular brush bristle is crushed and the horizontal and vertical shapes of the cross-sectional shape of the brush bristle are aligned. It is. That is, the original cross-sectional shape of the brush bristles is circular, and the cross-sectional shape of the brush bristles is formed by crushing a brush composed of circular brush bristles into a flat shape such as an ellipse or track shape with a large vertical and horizontal dimension ratio. It is a method of aligning the vertical and horizontal.

  Further, the original cross-sectional shape of the brush hair is circular, and a brush composed of the circular brush hair is inserted into the tip of the circular mouthpiece, and at the same time, the brush hair is caulked and fixed. Then, the tip of the die may be crushed in one direction together with the brush bristles and formed into a flat shape such as an ellipse or a track shape having a large vertical / horizontal size ratio, and the horizontal and vertical cross-sectional shapes of the bristles may be aligned. The means for crushing the brush and forming the brush hair into a flat shape may be plastic processing such as press processing or roller crushing processing.

  The application brush of the present invention has the following effects. When application pressure is applied to apply the brush to the nail plate, lips, etc., the brush is elastically deformed so as to follow the length and width of adjacent brush hairs. Therefore, when the brush is used sideways, for example, with the flat brush face as an abdomen, the bristle shifts to the left and right side surfaces of the adjacent bristle as the application pressure increases. Since the bristle is a wide flat shape, it can spread greatly compared to the case of using a round bristle of the same area. Therefore, compared to a conventional flat brush having the same width, a user-friendly application brush can be obtained by providing a larger brush spread by adjusting the application pressure.

  In addition, as described above, after applying the user-friendly application brush to the opening of the base without paying much attention to breaking the bristles with a circular cross-sectional shape, it is easy to press, roll, etc. By crushing the bristle with a simple mechanical device, a brush having a flat cross-sectional shape can be formed without greatly increasing the number of processing steps.

Next, examples embodying the present invention will be described. FIG. 1 is an explanatory view of an embodiment of the application brush of the present invention. In FIG. 1, the base 1 constituting the application brush is formed in a cylindrical shape as a shaft end portion 13 for fixing one end to the application rod, and in a track shape as a base end portion 11 for fixing the brush 5 at the other end. The base end portion 11 formed in a track shape bundles and holds the ends of the brush bristles 57. Each of the bristle 57 constituting the brush 5 has a cross-sectional shape with a large vertical / horizontal dimension ratio such as an ellipse or a track shape. Further, the brush bristles 57 constituting the brush 5 are held and fixed to the base 1 with the tip and the horizontal and vertical sections aligned.

  The base 1 is not particularly limited as long as it can fix the brush 5. In other words, a metal that can be plastically deformed or a plastic base that can crush or heat weld the brush 5 may be used. Further, the base 1 for holding and fixing the brush 5 and the container lid may be configured integrally as in a nail polish brush or the like.

  FIG. 2 is an explanatory diagram of the use of the application brush of the present invention, and shows a state in which a cosmetic material 9 such as liquid nail polish is applied to the nail plate 7 that curves upward. In the figure, the bristle 57 constituting the brush 5 is used sideways with respect to the nail plate 7 which is the application surface. When the application pressure is applied to the nail plate 7 by the brush 5, the brush 5 is bent like a cantilever as shown in FIG. 2A, and the cosmetic 9 is applied onto the nail plate 7. FIG. 2B shows an XX cross-sectional view of FIG. 2A and shows an example in which the application brush is used sideways.

  The pressure applied to the brush 5 against the nail plate 7 pushes the individual bristle 57 in the direction of arrow A1. However, since the bristle 57 is formed of a flexible synthetic fiber, it moves in the direction of the arrow B1 as shown in FIG. Therefore, the brush 5 spreads in the lateral direction and can be applied widely.

Next, the manufacturing method of the present application brush will be described. FIG. 3 is an explanatory view of attaching a base before crushing of the bristle, and FIG. 3A is a perspective view of the attached state of the base when the cross-sectional shape of the bristle 57 is an ellipse, a flat shape such as a track shape, FIG. B) shows the same front view. Synthetic fibers are used for the brush bristles 57 having an elliptical cross section and a track-like shape. The flat brush bristles 57 are attached to the opening of the base 1 with the horizontal and vertical sections aligned. The flat brush hair 57 attached to the opening of the base 1 is fixed by heat welding or caulking. In FIG. 3, the opening of the base 1 is shown as a circle, but when used, the brush bristles 57 are used laterally with respect to the application surface as described in FIG. The shape of the base 1 is not limited to a circle.

  4A and 4B are explanatory views of attaching the bristle base before crushing, FIG. 4A is a perspective view of the bristle base attached with a circular cross-sectional shape, and FIG. 4B is a front view thereof. Since the bristle bristle 59 having a circular cross section has no directionality, a predetermined amount can be attached to the opening of the base 1 simply by adjusting the hair tips. In this case, the brush bristles 59 are crushed into a flat shape together with the base 1, thereby simultaneously applying the flat form of the brush bristles 59 and fixing the brush bristles 59 to the base 1 to obtain an application brush as shown in FIG. 1. Can do.

  FIG. 5 is an explanatory diagram of a manufacturing method of an application brush. FIG. 5A shows a manufacturing method by press working, and FIG. 5B shows a manufacturing method by roller crushing processing. 5A and 5B, symbol 111 is a processing table for processing the brush hair 59 attached to the base 1. The brush bristles 59 attached to the base 1 hold circular brush bristles 59 as in FIGS. 3 and 4. Since the bristle 59 has no vertical and horizontal directions, the bristle 59 is placed on the jig 113 and crushed unless the base 1 has a front or back or front position. In FIG. 5A, the upper mold 115 is lowered with respect to the positioned bristle 59 to press the base and the bristle.

  5B, the roll 117 is moved in the direction of arrow D from the left side of the processing base 111 with respect to the positioned brush bristles 59, and the base 1 and the bristles 59 are crushed between the jig 113 and the roll 117. . At this time, the round brush hair 59 is plastically deformed into an ellipse or a track shape.

In FIG. 5, the pressing process and the roller crushing process have been described with respect to crushing only the bristle 59, but the base 1 and the bristle 59 may be crushed simultaneously.
In this case, the bristles can be fixed and deformed simultaneously. Alternatively, only the tip portion of the brush hair 59 may be partially crushed. As described above, the application brush of the present invention has the effects described in the column of the effects of the invention.

  Further, although description has been made with specific embodiments based on the drawings, the present invention is not limited to the drawings, and any configuration that exhibits the effects of the present invention that is already known may be employed. It goes without saying that we can do it.

It is explanatory drawing of one Example of this invention application brush. It is use explanatory drawing of this invention application brush. It is a nozzle hair attachment attachment explanatory drawing. It is a base attachment explanatory drawing of the bristle before crushing. It is manufacturing method explanatory drawing of an application brush.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Base 11 ... Tip end part 13 ... Shaft end
5 ... Brush 57 ... Brush hair 59 ... Brush hair
7 ... Nail plate 9 ... Cosmetics 111 ... Processing stand 113 ... Jig 115 ... Upper mold 117 ... Roll

Claims (4)

The tip of the coating bar in a coating brush for holding a brush that will be held fixed to the base bundled bristles made of synthetic fibers,
Cross-sectional shape of the bristles, a flat large oval, etc. track shape dimension ratio of vertical and horizontal, in Rukoto is held to the base by aligning the aspect of the bristles of the cross section, when applying the cosmetics An application brush characterized in that the brush bristles spread widely in the lateral direction. Ellipses and tracks with a large vertical and horizontal dimension ratio by bundling brush bristles made of chemical fiber and having a circular cross section at the tip of the application bar , holding and fixing the bristles to the base, and crushing the brush composed of the circular brush bristles A method for producing a coating brush, characterized by forming a flat shape such as a shape and aligning the horizontal and vertical cross-sectional shape of the brush hair. A bristles made of chemical fiber and having a circular cross-sectional shape are bundled at the tip of the application bar and held and fixed to a base that can be plastically processed, and the tip of the base is unidirectional with a brush composed of the round brush bristles. An application brush characterized by crushing and forming the bristle into a flat shape such as an ellipse or a track shape with a large vertical and horizontal dimension ratio, and simultaneously forming the tip of the base into a flat shape to align the horizontal and vertical cross-sectional shape of the brush hair. Manufacturing method. The process according to claim 2 or claim 3 application brush of any of claim, wherein means for forming crushed bristles made the chemical fiber is characterized in that pressing a plastic working roller crushing processing, etc. .

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