Cosmetic container

Abstract

A cosmetic container includes a PET tube having an open end and a close end, wherein the close end has a connecting section, and the connecting section formed with at least one external thread at its outer periphery and a bottom; a painting assembly including a pen segment screwed with the open end, a brush segment wedged in the pen segment and an upper cap mounted around the pen segment; and an attached member having a threaded hole for receiving and fixing the connecting section at the thread.

Description

BACKGROUND OF THE INVENTION[0001]1. Technical Field[0002]The present invention relates to containers, and more particularly, to a cosmetic container with improved airtightness that prevents an article contained therein from drying or deteriorating due to oxidation, which cosmetic container is also structurally improved in combination between components thereof.[0003]2. Description of Related Art[0004]With the rapid change of modern fashion and aesthetic perception, painting with cosmetic products on skin and nails to manifest personal style has become a trend. In particular, traditional cosmetic applicators or brushes are no more satisfying for modern cosmetic applications which involve drawing patterns or designs on skins or nails. For example, U.S. Pat. No. 6,059,474 issued to the applicant of the present application has disclosed a multi-purpose nail enamel applicator that incorporates a pen head for drawing and a brush member for painting. The cosmetic container is provided with...

AI Technical Summary

Benefits of technology

[0007]In view of the shortcomings of the prior art, the present invention provides a cosmetic container, which is structurally improved to enhance its overall airtightness and to strengthen combination between its components.

[0012]The primary objective of the present invention is to make the tube with PET, which is a material featuring excellent airtightness, so as to effectively prevent air from invading the tube and thereby protecting a content contained in the tube from deteriorating or hardening.

[0013]Another objective of the present invention is to combine the connecting section of the tube and the attached member with the thread and the threaded hole so as to improve the traditional approach where only a close-fit or wedge mechanism is implemented and incurs the problems of weak combination and easy disengagement.

[0014]Another objective of the present invention is to provide the right-angle or acute-angle connecting rim between the bottom and the thread, so that the tube can be combined with the attached member with improved firmness and security as compared with the prior-art device wherein the chamfered edge is likely to make the tube disengaged from the attached member.

Problems solved by technology

In particular, traditional cosmetic applicators or brushes are no more satisfying for modern cosmetic applications which involve drawing patterns or designs on skins or nails.

However, the traditional cosmetic container has weakness in addition to the inferior airtightness that may cause its content to deteriorate.

The body made of Nylon is inherently inferior in airtightness and fails to properly isolate the content from external air.

Consequently, the content tends to soon deteriorate, and this causes inconvenience and diseconomy to users.

However, the admixture material has poor ductility and transparency while the airtightness is nevertheless not perfect because the admixture material, when made into a container, possesses pores.

As the resultant container is very rigid due to its poor ductility, a relatively large force is required to squeeze it and apply its content, thereby inconveniencing its users.

However, conventionally, for smooth bottle-blowing process and mold-releasing process, it is difficult to provide the bottom end with threads, and thus the bottom end can only engage the decorative cap or the connecting ring by means of a close-fit or wedge mechanism.

As the close-fit or wedge mechanism is limited in providing firm combination, when an external force is applied between the cosmetic containers or between its bottom end and the combined decorative cap or the connecting ring, the close-fit or wedge mechanism tends to be broken and cause uncoupling of the components.

In addition, also because of the problem of shaping in the bottle-blowing process and mold-releasing process, the container typically has all its coroners and edges formed as chamfered.

This can even highlight the weakness of the close-fit or wedge mechanism because when the bottom end combines with the decorative cap or the connecting ring, the chamfered edge is more likely to slide along and eventually disengage from the decorative cap or the connecting ring under external force, and is less effective in positioning the bottom end as compared with a non-chamfered, square edge.

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