EP2022363A2 - Container for a cosmetic preparation - Google Patents

Abstract

The container (1) has a container body (10) and a bottom (11) connected together by a fixed and liquid-tight connection (12) and forming a two-part structure of the container. The connection is provided as a welding connection. A transparent and translucent material is provided as container material. The container base body includes an inner wall with structures (3, 13), where the parts are formed as plastic-injection molded parts, respectively. The bottom is provided with a container opening. A marking is provided in a man part of the container for position determination.

Description

The invention relates to a container for holding a liquid cosmetic, in particular a colored cosmetic for the lips, eyelids, fingernails or the like.

Such containers are conventionally made of glass, plastic or metal or a combination of these materials. To achieve a pleasing visual appearance and a high-quality appearance, it is known to provide the outer surface of the container with a decoration which is applied by means of complicated transfer or printing process. It must be ensured that this decoration remains attractive even after repeated use of the container.

It is already known to make the color of the container contents visible from the outside by the color on the outside of the container or on the screw cap is reproduced. Furthermore, there are containers, in particular for nail polish, which are wholly or partially transparent, which can directly recognize the color of the cosmetic contained in the container.

From the FR 2 855 378 A1 . DE 101 06 834 A1 . US 2004/0071491 A1 and CH 241 676 A are each partially transparent container for cosmetic sticks, such as lipsticks, so known for a solid cosmetic. These containers have on the inner wall structuring, which are designed substantially for better support of the recorded solid pin material.

On this basis, the object of the invention is to provide a novel and correspondingly sensational and attractive embodiment of a container of the type described, which at the same time makes it possible to make the color of the inside of the liquid cosmetic and possibly additionally gloss effects of the same recognizable from the outside.

This object is achieved by a container according to the features of claim 1. The container according to the invention consists of a transparent or translucent container material, in particular of a plastic. It is a two-part construction with a first container part and a second container part, wherein the first and the second container part are firmly and liquid-tightly connected to each other. In addition, at least the first container part has an inner wall with a structuring.

The two container parts are in particular separate components, which are preferably each made independently and then can be subsequently joined together to form the container according to the invention. The liquid-tight connection between the first and the second container part is particularly insoluble and holds in particular chemically and physically stood in the container to be filled liquid cosmetic. This ensures that the container remains tight at this junction even when filled with cosmetic, even if the filled cosmetic, which may be, for example, nail polish or nail polish remover, contains chemically aggressive ingredients.

At the same time, the two-part design of the container allows the optically particularly attractive structuring of the inner wall according to the invention. In the case of a one-part configuration, this would not be possible or could not be realized in a comparable manner. Because of the transparent or translucent container material likewise provided according to the invention, this internal structuring can be recognized from the outside, both in the unfilled and in the filled state. Especially in connection with the cosmetic contained in the container, the structuring of the inner wall causes an interesting visual effect, without thereby leading to an impairment of handling on the outside.

Advantageous embodiments of the container according to the invention will become apparent from the features of the dependent claims of claim 1.

According to a favorable embodiment, the first container part and the second container part are each designed as a plastic injection-molded part. Alternatively, they can also be designed as extrusion-blown or injection-blown plastic bodies. These components are particularly easy and cost-effective to produce, while at the same time due to the internal structuring a high-quality appearance can be achieved.

According to a further advantageous embodiment, the second container part is a bottom part or an upper shoulder part having a container opening. This results in a favorable connection point between the two container parts. In addition, the two container parts then preferably have no undercuts, which may otherwise lead to difficulties in injection molding production, in particular in the demoldability.

According to a further advantageous embodiment, the solid and liquid-tight connection between the first and the second container part is designed as a welded connection. Alternative compounds, e.g. an adhesive connection, but are also possible. This makes it possible to produce a permanently liquid-tight connection in a simple and cost-effective manner.

In a further favorable embodiment, it is provided that the inner wall has at least one inner wall portion which has a higher roughness than the rest of the inner wall, and whose roughness is in particular between 1.5 and 85 microns, preferably between 12 and 25 microns. For the purposes of the present invention, such areas with different roughness are also to be understood as internal structurings. They may be provided alone or in conjunction with other structures on the inner wall. The partially increased roughness of the inner wall can preferably be produced by partially or not polishing the mold wall of an injection mold used to produce the container part. Alternatively, the mold wall of the injection mold may also be partially roughened, e.g. by means of a laser beam treatment. By means of such injection molds produced container parts have on their inner wall, the visually appealing and visible from the outside partially increased roughness. This is perceived on the outside as matting or gray tint and as a deviation from the uniform basic tone of the directly outwardly translucent cosmetics.

According to a further advantageous embodiment, an externally readable label or a visible from the outside sign is attached to the inner wall. These labeling and / or drawing elements may preferably again be formed by a partially different roughness on the inner wall. The arrangement of these labeling and / or drawing elements on the inner wall is particularly durable. These elements are in the filled state of use of the container from the outside inaccessible and therefore can not be removed unintentionally or intentionally. Thus, there is no risk that they are scraped off, blurred or otherwise removed with these labels or / and drawing elements mounted inside unlike externally applied imprints or embossments even with prolonged use of the container. In addition, they provide security against unwanted or even abusive removal of, for example, a mark of origin.

A further advantageous embodiment provides that the structuring of the inner wall is formed by rib-like inner projections, which change the refractive behavior of the container wall significantly and accordingly can be seen clearly from the outside.

For example, the ribs can extend in the longitudinal direction. Their cross section seen perpendicular to the longitudinal direction may be wedge-shaped or bead-like rounded, d. H. They may have more or less sharp edges and therefore appear more or less linear from the outside. This results from the outside also an interesting visual impression.

Within the scope of the invention, the transparent container material may have a haze factor of <5%. Then a particularly good transparency is given, so that a good view of the filled in the container cosmetic and the internal structuring is possible.

According to a further advantageous embodiment, the structuring is formed in that the contour of the inner wall has a different cross-sectional geometry than an outer wall. This can be very impressive effects.

In another preferred embodiment, it is provided that the inner wall of the container seen perpendicular to a longitudinal axis has a polygonal cross-section, in particular a transition between adjacent surfaces of the inner wall with polygonal cross-section may be formed by sharp edges, so that the polygon structure of outside very clearly perceived. Preferably, an outer wall perpendicular to the longitudinal axis also has a round or oval cross-section. This results in a particularly clear contrast between the different cross-sectional contours of the inner and the outer wall, whereby an interesting effect is generated.

According to a further advantageous embodiment, the first container part widens in the direction of the second container part. This expansion can be provided either only on the inner wall or only on an outer wall or on the inner and the outer wall. It favors demolding from an injection mold. In particular, the widening is designed in the form of a small conicity.

According to a further advantageous embodiment, at least the first container part is provided on an outer wall with an ornamental coating. This decorative coating is arranged in particular on the outer wall, that it is aligned with respect to the structuring of the inner wall. For example, the decorative coating can form a frame for the internal structuring. This in turn calls an interesting optical impression, in particular, if it is the internal structuring marking or / and drawing elements, which are then surrounded by the frame of the outer decorative coating. The decorative coating is preferably designed as an embossing, in particular as a hot foil stamping.

According to another advantageous embodiment, at least one of the two container parts, preferably the second container part, is provided with a marking. The marked container part may in particular be the bottom part or the shoulder part of the container. A structural or plastic marking of the bottom or shoulder part is less noticeable than a mark on the container main part, which also forms the lateral surface for the receiving volume. Moreover, such marking of the bottom or shoulder does not affect the handling of the container. The marking is preferably formed as a registration. It is used for position determination and / or control during a production step in which the container, in particular its first container part, is provided with an ornamental coating. The label is preferably structurally or plastically formed, e.g. in the form of a projection or a depression. The marking allows a defined and exact placement of the decorative coating on the container. This is particularly advantageous if the outer decorative coating is to be applied with a predetermined local reference to the inner structuring.

The container can be produced in two parts by injection molding, wherein the two parts thus produced in the shoulder or bottom region of the container by means of a welded connection, in particular an ultrasonic or Laser welding, a fit, in particular a press fit or a snap-press fit, or other suitable liquid-tight connection are connected together.

Fig. 1 und Fig. 2

Ausführungsbeispiele von zweiteiligen Behältern gemäß einer ersten Ausführungsform mit einer partiellen Aufrauung der Innenwand,

Fig. 3

ein Ausführungsbeispiel eines zweiteiligen Behälters nach einer zweiten Ausführungsform mit einer mehreckigen Innenwandkonfiguration,

Fig. 4

einen Querschnitt senkrecht zur Längsachse durch den Behälter nach Fig. 3,

Fig. 5

ein Ausführungsbeispiel eines zweiteiligen Behälters einer dritten Ausführungsform mit Längsrippen an der Innenwand und

Fig. 6

einen Schnitt senkrecht zur Längsachse durch die Ausführungsform nach Fig. 5.

The invention will be explained in more detail based on a preferred embodiment in conjunction with the drawings. Showing:

Fig. 1 and Fig. 2

Embodiments of two-part containers according to a first embodiment with a partial roughening of the inner wall,

Fig. 3

An embodiment of a two-part container according to a second embodiment with a polygonal inner wall configuration,

Fig. 4

a cross section perpendicular to the longitudinal axis through the container Fig. 3 .

Fig. 5

an embodiment of a two-part container of a third embodiment with longitudinal ribs on the inner wall and

Fig. 6

a section perpendicular to the longitudinal axis by the embodiment according to Fig. 5 ,

Corresponding parts are in the Fig. 1 to 6 provided with the same reference numerals.

In the drawing, a container 1 is made of a transparent material, such as. As a highly transparent plastic, as it is known under the trade name "Eastman glass polymer" represented. To achieve the desired optical effects, the wall thickness of the container 1 is greater than in conventional round containers, eg. B. 2 to 5 mm. The containers 1 are each for receiving a liquid, in particular colored cosmetics, such. Lip gloss, nail polish, eye shadow or the like.

The containers 1 are each formed in two parts in the embodiments shown. They each comprise, as the first container part, a container base body 10, which encloses the actual receiving region for the liquid cosmetic, and a container bottom 11 as the second container part. The container base body 10 and the container bottom 11 are welded together, so that between them an insoluble solid and, above all, liquid-tight Compound 12 is formed.

All containers 1 are provided on an inner wall 5 of the container base body 10 with a structuring 13 visible from the outside.

The containers 1 are in the embodiments shown outside, ie on an outer wall 14, each round and tapered in the direction of a longitudinal axis 15 upwards conically. If necessary, such configurations can also be well decorated on the outside, e.g. B. by hot foil stamping. This tapered structure, the container 1 at its respective outer wall 14 but in particular also at its respective inner wall 5. This facilitates the demolding of the injection-molded container base body 10. The core of the injection mold can then very easily down, ie in the direction of the subsequently placed on the container bottom 11, are pulled out of the container body 10.

At the top of the container 1, a shoulder 16 is formed, which opens into a narrower neck 2, to which an arbitrary closure, for. B. a the outer geometry of the container 1 continuing screw can be placed.

In the embodiment according to Fig. 1 and 2 the core of the injection mold of the container body 10 is partially not polished, which causes this area in the ready-sprayed container 1 due to the increased surface roughness matte acts.

In the embodiment according to Fig. 1 run around the longitudinal axis 15 around matt, spaced from each other structuring 13 forming strips 3. In the embodiment according to Fig. 2 a matte wavy line 4 is provided which forms the structuring 13. Alternatively, the roughened on the inner wall 5 surface may also be designed so that there is an externally readable label and / or a recognizable from the outside signs, such as a mark of origin, such as a company or product logo results.

In 3 and 4 an embodiment is shown, where the inner wall 5 of the container 1 has a triangular cross-section with relatively sharp acute-angled transitions 6 between two adjacent triangular surfaces 7, said transition region 6 or the edge thus formed prominent from the outside. In this exemplary embodiment, the inner structuring 13 is formed in that the contour of the inner wall 5 has a different cross-sectional geometry than the outer wall 14. The inner wall 5 has seen perpendicular to the longitudinal axis 15 a polygonal, in the embodiment triangular cross-section. By contrast, the outer wall 14 has a round cross section perpendicular to the longitudinal axis 15.

At the in FIGS. 5 and 6 illustrated embodiment, the container 1 on its inner wall 5, a plurality of bead-like, rounded ribs 8, which pass at 9 approximately at right angles in the inner wall 5. This results in an interesting, from the outside Fig. 5 recognizable design. Also in this embodiment, the inner structuring 13 is formed by the fact that the contour of the inner wall 5 due to the ribs 8 has a different cross-sectional geometry than the outer wall 14th

Claims (14)

Container for holding a liquid cosmetic, in particular a colored cosmetic for the lips, eyelids, fingernails or the like, characterized in that a) a transparent or translucent material is provided as container material, b) a two-part construction with a first container part (10) and a second container part (11) is provided, wherein the first and the second container part (10, 11) are firmly and liquid-tightly connected to each other, and c) at least the first container part (10) has an inner wall (5) with a structuring (3; 4; 6, 7; 8; 13). Container according to claim 1, characterized in that the first container part (10) and the second container part (11) are each designed as a plastic injection-molded part. Container according to claim 1, characterized in that the second container part is a bottom part (11) or an upper shoulder part having a container opening. A container according to claim 1, characterized in that the solid and liquid-tight connection (12) between the first and the second container part (10, 11) is designed as a welded connection. Container according to claim 1, characterized in that the inner wall (5) has at least one inner wall portion (3, 4), which has a higher roughness than the remaining inner wall (5), and its Roughness depth in particular between 1.5 and 85 microns, preferably between 12 and 25 microns, is located. Container according to claim 1, characterized in that on the inner wall (5) an externally readable label or a visible from the outside sign is attached. Container according to claim 1, characterized in that the structuring (13) of the inner wall (5) by rib-like inner projections (8) is formed, in particular in a longitudinal direction (15) and whose cross-section perpendicular to the longitudinal direction (15) seen preferably each wedge-shaped or bead-like rounded is formed. Container according to claim 1, characterized in that the structuring (6, 7; 8; 13) is formed by the contour of the inner wall (5) having a different cross-sectional geometry than an outer wall (14). Container according to claim 1, characterized in that the inner wall (5) seen perpendicular to a longitudinal axis (15) seen a polygonal cross-section and an outer wall (14) perpendicular to the longitudinal axis (15) has a particular round or oval cross-section. Container according to claim 9, characterized in that a transition (6) between adjacent surfaces (7) of the inner wall (5) of polygonal cross-section is formed by sharp edges. Container according to claim 1, characterized in that the first container part (10) widens in the direction of the second container part (11), in particular both on the inner wall (5) and on an outer wall (14). Container according to claim 1, characterized in that the transparent material has a haze factor of <5%. Container according to claim 1, characterized in that at least the first container part (10) is provided on an outer wall (14) with an ornamental coating whose placement on the outer wall (14) in particular with respect to the structuring (3; 4; 6, 7; 8 13) of the inner wall (5) is aligned. Container according to claim 1, characterized in that at least one of the two container parts (10, 11), preferably the second container part (11), is provided with a marking.

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