CN108113171B

CN108113171B - Liquid cosmetic container

Info

Publication number: CN108113171B
Application number: CN201710777738.2A
Authority: CN
Inventors: 大桥京弥; 岛健司; 武井亮二; 和气贵男
Original assignee: Tokiwa Corp
Current assignee: Tokiwa Corp
Priority date: 2016-11-29
Filing date: 2017-09-01
Publication date: 2020-12-11
Anticipated expiration: 2037-09-01
Also published as: JP2018086163A; JP6868377B2; CN108113171A

Abstract

The invention provides a liquid cosmetic container, which is provided with a brush for easily flowing and coating liquid cosmetics. In the present invention, the liquid cosmetic in the storage part of the container body (1) is conveyed to the brush (3) by the capillary phenomenon of the impregnation body (4) of which the rear end part enters the storage part and the front end part (4b) enters the concave part (3a) of the brush (3), and reaches the front end side of the brush (3) through the gap between the brush hairs of the brush (3) for coating, on the other hand, when the liquid cosmetic passes through the brush (3), no outward retreat space exists in a bundling part (8a) which contacts the brush (3) in the brush holder (8) and bundles the brush (3), therefore, the nylon bristles which have water absorption and swell are inserted into the space (S) from the front end of the impregnation body (4) to the inner position of the binding part (8a), so that the gap between the bristles is ensured, and the flow path of the liquid cosmetic is ensured.

Description

Liquid cosmetic container

Technical Field

The present invention relates to a liquid cosmetic container for applying a liquid cosmetic.

Background

Conventionally, as a liquid cosmetic application tool which is a liquid cosmetic container, a tool described in the following patent document 1 has been known. This liquid cosmetic application tool includes: a cylindrical coating tool body; a cotton core contained in the applicator main body and impregnated with a liquid cosmetic such as eyeliner; a joint (ノーズピース) that is fitted into the tip end of the coating tool body; the pen point is bunched in the joint; the relay core has a rear end portion inserted into the front end portion of the cotton core, and a front end portion inserted into the rear end portion of the nib. The liquid cosmetic impregnated in the cotton core is transported to the nib through the relay core and discharged from the nib, whereby the liquid cosmetic can be applied to the part to be coated. The pen tip is called a nylon pen and is formed from nylon fibers.

Documents of the prior art

Patent document

Patent document 1: japanese laid-open patent publication No. 2006-296936

Disclosure of Invention

(problems to be solved by the invention)

Here, since the nylon fibers (bristles) constituting the nib have water absorption properties, the nylon fibers swell when the liquid cosmetic is fed to the tip end side of the nib, and the gap between the nylon fibers in the joint is reduced. Thus, if the gap between the nylon fibers is small, the liquid cosmetic is difficult to flow. Therefore, a liquid cosmetic container is required in which a liquid cosmetic is easily applied by easily flowing the liquid cosmetic on the nib.

The present invention relates to a liquid cosmetic container having a brush made of nylon starting from a nib, and an object of the present invention is to provide a liquid cosmetic container in which a liquid cosmetic flows easily in a brush and is applied easily.

(means for solving the problems)

The liquid cosmetic container of the present invention is characterized by comprising: a container body having a storage portion therein, the storage portion storing a liquid cosmetic; a brush provided at the front end side of the container body, having a plurality of nylon bristles, and used for applying a liquid cosmetic; a brush holder which is provided at the front end side of the container main body, is formed in a cylindrical shape, and is configured to bind the brushes by passing and contacting the brushes; the impregnation body has a rear end portion inserted into the storage portion and a front end portion inserted into the brush, and sends the liquid cosmetic to the brush by capillary action. The brush has a recess into which the tip of the impregnated body is inserted, and a space is provided between the bottom of the recess and the tip of the impregnated body, the space reaching from the tip of the impregnated body to a position inside a binding portion that binds the brush by contacting the brush with the brush holder.

According to such a liquid cosmetic container, the liquid cosmetic in the container main body is transported to the brush by capillary action of the impregnated body having the rear end portion inserted into the container portion and the front end portion inserted into the recess of the brush, and is applied to the front end side of the brush through the gap between the bristles. When the liquid cosmetic is passed through the brush, the binding portion that binds the brush while contacting the brush in the brush holder does not have a space for withdrawing the nylon bristles that have water-absorbing property and expand outward, and therefore the nylon bristles that have water-absorbing property and expand enter (enter) a space from the distal end portion of the impregnation body to the inner position of the binding portion, and a gap between the bristles is ensured, and a flow path for the liquid cosmetic is ensured, and therefore, the liquid cosmetic L easily flows and is easily applied. Further, if the space does not reach the inside position of the binding portion of the brush holder, in the brush at the axially forward position of the binding portion of the brush holder, the brush tip may not be gathered and spread in a sharp and sharp shape due to the nylon bristles expanded inside the binding portion; on the other hand, the nylon bristles bundled and expanded by the bundling portion of the brush holder easily enter the space inside the bundling portion of the brush holder, and the tip of the brush can be maintained in a sharp and pointed shape.

Here, the brush is preferably a brush obtained by mixing pen bristles made of nylon and pen bristles made of polybutylene terephthalate. Nylon bristles have poor elasticity and are difficult to apply when drawing an eye line, for example. Since the pen hair made of polybutylene terephthalate (PBT) has low water absorption and is less likely to swell, it can secure a flow path for a liquid cosmetic, and it has a certain degree of hardness (higher than that of a pen hair made of nylon), and therefore, it can maintain elasticity. Therefore, the brush obtained by mixing the pen hair made of nylon and the pen hair made of polybutylene terephthalate is prepared, the pen hair made of nylon expanded by the liquid cosmetic enters the space as described above, and the pen hair made of polybutylene terephthalate hard to expand is mixed, so that the flow path of the liquid cosmetic is ensured, the liquid cosmetic is easy to flow, and the brush can be easily coated with the optimal use feeling of adding elasticity when being coated.

Further, if the size of the space is determined according to the expansion rate of the nylon bristles, which have expanded, can appropriately enter the space.

Here, as a configuration of a liquid cosmetic container that suitably exhibits the above-described effects, a so-called direct-liquid type liquid cosmetic container as described below is exemplified. Specifically, the containing portion is filled with the liquid cosmetic, and the impregnated body is a relay core having a rear end portion impregnated with the liquid cosmetic, and has a corrugated member surrounding the relay core for adjusting the amount of liquid to be supplied to the brush.

(Effect of the invention)

Thus, according to the present invention, it is possible to provide a liquid cosmetic container having a brush with which a liquid cosmetic can be easily applied by easily flowing the liquid cosmetic.

Drawings

Fig. 1 is a longitudinal sectional view showing a liquid cosmetic container according to an embodiment of the present invention.

Fig. 2 is a longitudinal sectional view showing a main portion of fig. 1 in an enlarged manner.

Description of the symbols

1 Container body

2 housing part

3 brushes

3a concave part

3c bottom of recess

4 Relay core (impregnated body)

4b front end of relay core

5 corrugated member

8 Brush holder

8a binding part

100 liquid cosmetic container

L-liquid cosmetic

And (4) an S space.

Detailed Description

Hereinafter, a preferred embodiment of the liquid cosmetic container according to the present invention will be described with reference to fig. 1 and 2. Fig. 1 is a longitudinal sectional view showing a liquid cosmetic container according to an embodiment of the present invention, and fig. 2 is a longitudinal sectional view showing an enlarged main portion. The liquid cosmetic container of the present embodiment is used when applying a liquid cosmetic to an application part, that is, skin or the like, and is particularly suitable for drawing a thin line on an eyelid like an eyeliner or drawing a thin line of eyebrow like an eyebrow pencil. The liquid cosmetic is not limited to the eyeliner and the eyebrow pencil, and may be another liquid cosmetic.

As shown in fig. 1, the overall shape of the liquid cosmetic container 100 is an elongated round bar shape like a pen, and includes: a cylindrical container body 1, a storage section 2 provided in the container body 1 and storing a liquid cosmetic L, a brush 3 arranged on the front end side of the container body 1 and applying the liquid cosmetic L in the storage section 2, a cylindrical brush holder 8 for binding and holding the brush 3, a shaft-shaped relay core (impregnated body) 4 arranged in the container body 1 and connecting the storage section 2 and the brush 3, and a substantially cylindrical corrugated member 5 arranged so as to surround the relay core 4. Here, in order to facilitate coating by the user gripping the container body 1, a bottomed cylindrical gripping tube 6 is detachably attached to the container body 1.

The container body 1 is formed of polypropylene (PP) or the like, for example, and is formed into a tapered cylindrical shape with a flange portion. The front end surface of the grip cylinder 6 abuts against the rear end surface of the flange portion 1a provided on the outer peripheral surface of the container body 1, and the open end surface of the cap 10 attached to the container body 1 abuts against the front end surface of the flange portion 1 a. The opening at the rear end of the container body 1 is closed by inserting a cylindrical end plug 7 having a bottom.

The corrugated member 5 is used for adjusting the liquid amount of the liquid cosmetic L, and is formed of, for example, polypropylene (PP). The bellows member 5 has a groove (bellows) containing the liquid cosmetic L, and a cylindrical rear end portion 5a thereof is fitted into the concave portion 1b on the inner peripheral surface of the container body 1 and attached to the container body 1. The storage portion 2 is formed between the rear end portion 5a of the corrugated member 5 and the tail plug 7 in the container body 1, and the liquid cosmetic L is filled in the storage portion 2. The viscosity of the liquid cosmetic L is 1 to 500 mPas (millipascal seconds). In addition, a ball 20 for stirring the liquid cosmetic L is accommodated in the accommodating portion 2.

The relay core 4 is a shaft body formed of, for example, polyethylene terephthalate (PET) and having a circular cross section. The relay core 4 extends in the axial direction so as to pass through the cylindrical hole of the corrugated member 5, and the main body 4a is located inside the corrugated member 5. The portion of the relay core 4 on the distal end side of the main body 4a is fitted to the portion of the corrugated member 5 on the distal side of the groove, thereby being attached to the corrugated member 5.

The tip portion 4b of the relay core 4, which extends forward from the body portion 4a, is a small-diameter, circular-cross-sectional shaft body having a smaller diameter than the body portion 4a, and is configured to be tapered toward the tip end. The relay core 4 having such a shape is obtained by: for example, a bundle of polyethylene terephthalate fibers is bundled, the bundle is fixed with an adhesive resin, and the outer peripheral surface is ground with a grinder or the like so that the fixed bundle is shaped as described above. In the relay core 4 thus formed, the portion on the rear end side enters the containing unit 2 through the hole of the rear end portion 5a of the corrugated member 5 and is immersed in the liquid cosmetic L, and the distal end portion 4b enters the brush 3 and comes into contact with the brush 3, whereby the function of connecting the inside of the containing unit 2 and the brush 3 is completed, and the liquid cosmetic L in the containing unit 2 can be sucked up and sent out to the brush 3 by capillary action.

The brush 3 is obtained by bundling a plurality of nylon bristles (filaments), and as shown in fig. 2, the rear end portion of the bristles is adhered to a disk-shaped bristle holding portion 11. The brush holding portion 11 has a through hole 11a at the center thereof for passing the distal end portion 4b of the relay core 4. In a state where the rear end portion of the brush 3 is adhered to the brush-hair holding portion 11, a recess 3a recessed from the rear end surface of the brush 3 toward the front end side is formed in the brush 3. The recess 3a is for inserting the distal end portion 4b of the relay core 4, but is formed in a shape that gradually tapers and closes so as to be recessed to extend further toward the distal end side than the distal end portion 4b when the distal end portion 4b of the relay core 4 is inserted.

The brush holder 8 is also called a sleeve (スリーブ) and has a substantially cylindrical shape with a tapered tip, and the brush 3 passes through the cylindrical hole thereof. The brush holder 8 has a rear portion that enters the front end portion of the container body 1 rather than the front end portion 8a, and has a plurality of (two here) projections 8b projecting outward from the rear end portion and arranged in the circumferential direction, and a plurality of (four here) projections 1c projecting inward from the front end portion of the container body 1 and arranged in the circumferential direction and facing rearward. The brush holder 8 has a front end portion 8a projecting forward from the container body 1, and an inner diameter smaller than that of a rear portion of the front end portion 8a, and forms a projecting portion projecting inward in an annular shape.

The brush holder 8 is attached to the container body 1 (see fig. 1) so that the bellows member 5 is pressed toward the axial direction distal end side via the brush hair holding portion 11 and abuts against the protrusion 1c of the container body 1, thereby being immovably attached in the axial direction. Therefore, the brush hair holding portion 11 is sandwiched between the front end surface of the corrugated member 5 and the rear end surface of the brush holder 8 and is immovable in the axial direction. In this state, a space S1 is formed between the outer peripheral surface of the brush holder 8 and the inner peripheral surface of the container body 1 to communicate the inside and the outside of the container in the axial direction.

In this state, the brush 3 passes through the inside of the tube of the brush holder 8, the plurality of bristles of the brush 3 contact the tip portion 8a of the brush holder 8, the plurality of bristles of the brush 3 are pressed (gathered) and bundled by the tip portion 8a, and the tip 3b of the brush 3 is arranged in a tapered and sharp shape. Here, the tip end portion 8a of the brush holder 8 contacts the brush 3 and bundles the brush, but the brush 3 is not limited to the tip end portion, and therefore, the brush holder 8 is hereinafter referred to as a bundling portion 8 a. In this state, a space S2 that gradually narrows toward the rear in the axial direction is formed between the inner peripheral surface of the brush holder 8 on the rear side of the bundling portion 8a that protrudes inward and the outer peripheral surface of the brush 3.

The distal end portion 4b of the relay core 4 enters the concave portion 3a of the brush 3 through the through hole 11a of the brush hair holding portion 11, and comes into contact with the plurality of brush hairs of the brush 3. Specifically, the outer peripheral surface of the substantially rear half of the distal end portion 4b of the relay core 4 is in contact with the plurality of bristles of the brush 3.

In this state, a space S extending in the axial direction is provided between the bottom 3c of the recess 3a of the brush 3 and the distal end 4b of the relay core 4. The space S extends from the front end portion 4b of the relay core 4 to the inner position of the binding portion 8a of the brush holder 8, and here, extends further forward.

As shown in fig. 1, a bottomed cylindrical cap 10 for protecting the brush 3 and the like is detachably attached to the distal end side of the container main body 1 by fitting. An inner lid 10a biased toward the container body 1 by a coil spring 9 is provided in the lid 10. When the cap 10 is attached, the inner cap 10a is in close contact with the tapered outer peripheral surface on the distal end side of the container body 1 by the biasing force of the coil spring 9, thereby ensuring airtightness and suppressing volatilization of the liquid cosmetic component.

In the liquid cosmetic container 100, the liquid cosmetic L in the storage portion 2 of the container body 1 is transported to the brush 3 by the capillary phenomenon of the relay core 4, and reaches the tip side of the brush 3 through the gap between the brush hairs to be applied.

Further, according to the liquid cosmetic container 100, when the liquid cosmetic L passes through the brush 3, the bundling portion 8a that binds the brush 3 while contacting the brush 3 in the brush holder 8 does not have a space for withdrawing the nylon bristles that have water-absorbing property and expand outward, and therefore the nylon bristles that have water-absorbing property and expand enter the space S from the distal end portion of the relay core 4 to the inner position of the bundling portion 8a, and a space between the nylon bristles is secured, and a flow path of the liquid cosmetic L is secured. Therefore, the liquid cosmetic L flows easily and is easily applied. Further, if the space S does not reach the inside position of the binding portion 8a of the brush holder 8, in the brush at the axially forward position of the binding portion 8a of the brush holder 8, the brush tip 3b may not be gathered and dispersed so as to be tapered and sharp due to the nylon bristles expanded inside the binding portion 8 a; on the other hand, the nylon bristles bundled and expanded by the bundling portion 8a of the brush holder 8 easily enter the space S inside the bundling portion 8a of the brush holder 8, and the tip 3b of the brush 3 can be maintained in a sharp and pointed shape.

Further, according to the present embodiment, since the space S extends further forward from the inner position of the binding portion 8a of the brush holder 8, the liquid cosmetic L can be more easily fed to the front end 3b of the brush 3.

Further, according to the present embodiment, even when the nylon bristles are too expanded, the nylon bristles can be inserted into the space S2.

In addition, according to the present embodiment, air can be introduced into the container through the space S1, and the internal pressure in the container can be stabilized.

However, nylon bristles have a good touch and are easy to brush, while they have high water absorption and poor elasticity, and therefore they have the advantage of being easy to discharge liquid cosmetics having high viscosity, such as eyeliner, and on the other hand, they may be difficult to apply when drawing eyeliner or the like.

Therefore, as a liquid cosmetic container for improving the above problem, a brush obtained by mixing a plurality of nylon bristles and polybutylene terephthalate (PBT) bristles is preferably used.

The polybutylene terephthalate-made brush hair is inferior in touch feeling, and the tip of the brush hair is difficult to comb, while the polyethylene terephthalate-made brush hair has low water absorption and is difficult to swell, and therefore, can secure a flow path for the liquid cosmetic L, and has a certain degree of hardness (higher hardness than a nylon-made brush hair), and therefore, can have elasticity.

Therefore, in the brush obtained by mixing the nylon bristles and the polybutylene terephthalate bristles, the nylon bristles expanded by the liquid cosmetic L are introduced into the space S as described above, and the polybutylene terephthalate bristles that are less likely to expand are mixed, whereby the liquid cosmetic L can be easily fluidized by ensuring the flow path of the liquid cosmetic L, and the brush can be easily applied with an optimal feeling of use by adding elasticity when applied.

In such a brush, the proportion of the mixed bristles to achieve the above-described action/effect is 10 to 70 wt%, preferably 15 to 45 wt% of the brush bristles made of polybutylene terephthalate.

Further, the cross-sectional shapes of the nylon bristles and the polybutylene terephthalate bristles may be different from each other, or the nylon bristles having a plurality of cross-sectional shapes different from each other and the polybutylene terephthalate bristles having a plurality of cross-sectional shapes different from each other may be mixed, or the nylon bristles and the polybutylene terephthalate bristles having different diameters may be mixed.

Here, examples of brushes obtained by mixing pen bristles made of nylon and pen bristles made of polybutylene terephthalate are given. The cross-sectional shapes of the nylon bristles and the polybutylene terephthalate bristles are circular, and the diameters of the nylon bristles and the polybutylene terephthalate bristles are 0.06-0.25 mm, respectively. In another example, bristles made of nylon are mixed with bristles having different diameters. In another example, the cross-sectional shape of the nylon bristles is a cross, a star, or a Y shape.

The cross-sectional shape is not limited to the non-circular shape, and bristles having non-circular cross-sections may be mixed with each other, or various combinations other than the above may be employed.

Incidentally, the brush is not limited to a brush having bristles made of nylon, and a brush obtained by mixing bristles made of nylon and bristles made of polybutylene terephthalate, and may be a brush obtained by further mixing bristles made of another material with these brushes.

Here, in the brush including the nylon bristles, it is preferable that the size (the hole diameter and the spatial area) of the space S is determined according to the expansion rate of the nylon bristles. With such a configuration, the swollen nylon bristles can be appropriately inserted into the space S.

The present invention has been specifically described above based on the embodiments thereof, but the present invention is not limited to the embodiments described above, and for example, in the embodiments described above, the container body 1 and the brush holder 8 are separate members, but may be an integral product and the distal end portion of the container body 1 may function as a brush holder.

Further, in the above-described embodiment, the so-called direct liquid type in which the liquid cosmetic L is directly filled in the storage portion 2, the liquid amount of the liquid cosmetic L is adjusted by the bellows member 5, and the liquid cosmetic L is supplied to the brush 3 through the relay core 4 is adopted, but the present invention is also applicable to a so-called wick type in which a wick (impregnated body) impregnated with the liquid cosmetic L is stored in the storage portion 2 without the bellows member 5, and the liquid cosmetic L of the wick is supplied to the brush 3 through the relay core 4, and also to a liquid cosmetic container of a type in which the wick extends so as to enter the brush 3 while also serving as the relay core.

Claims

1. A liquid cosmetic container is characterized by comprising:

a container body having a storage portion therein, the storage portion storing a liquid cosmetic;

a brush provided at a distal end side of the container body, having a plurality of nylon bristles, and applying the liquid cosmetic;

a brush holder which is provided at the front end side of the container main body, is formed in a cylindrical shape, and is configured to bind the brushes by passing and contacting the brushes;

an impregnation body having a rear end portion inserted into the storage portion and a front end portion inserted into the brush to transport the liquid cosmetic to the brush by capillary action,

the brush has a recess into which the tip end of the impregnated body is inserted,

a first space is provided between the bottom of the recess and the tip end of the impregnated body,

the first space reaches a position inside a binding portion from a tip end portion of the impregnated body, the binding portion being in contact with the brush in the brush holder to bind the brush,

the binding portion is provided at a front end portion of the brush holder,

a second space that gradually narrows toward the rear in the axial direction is formed between an inner peripheral surface of the brush holder on the rear side of the bundling portion and an outer peripheral surface of the brush.

2. Liquid cosmetic container according to claim 1, wherein,

the first space provided between the bottom of the recess and the distal end of the impregnated body reaches a position inside the second space formed between the inner peripheral surface of the brush holder on the rear side of the bundling section and the outer peripheral surface of the brush.

3. Liquid cosmetic container according to claim 1 or 2, wherein,

the brush is obtained by mixing the nylon brush hair and polybutylene terephthalate brush hair.

4. Liquid cosmetic container according to claim 1 or 2, wherein,

the size of the first space provided between the bottom of the recess and the distal end of the impregnated body is determined according to the expansion rate of the nylon brush hair.

5. Liquid cosmetic container according to claim 3, wherein,

6. Liquid cosmetic container according to claim 1 or 2, wherein,

the storage part is filled with the liquid cosmetic,

the impregnated body is a relay core having a rear end portion impregnated with the liquid cosmetic,

has a corrugated member surrounding the relay core and for adjusting the amount of liquid supplied to the brush.

7. Liquid cosmetic container according to claim 3, wherein,

the storage part is filled with the liquid cosmetic,

8. Liquid cosmetic container according to claim 4, wherein,

the storage part is filled with the liquid cosmetic,