Title:
METHOD FOR FORMING COATING LAYER ON DROPPER TUBE
Document Type and Number:
WIPO Patent Application WO/2021/045326
Kind Code:
A1
Abstract:
The present invention relates to a method for forming a coating layer on a dropper tube, whereby a coating layer is formed by means of a vacuum deposition method on a flexible tube (20) portion of a dropper which comprises: a glass body (10); and the tube (20) which is coupled to the top portion of the body (10) and of which the volume changes when same is pressed with a hand, wherein a liquid is discharged to the outside of the body or injected therein when the tube (20) is pressed or returned to the original state thereof. The present invention has the coating layer formed on the flexible tube portion of the dropper by means of the vacuum deposition method, and thus the coating layer does not peel off even when the tube is pressed with a hand, and the notable effects are achieved whereby: the appearance thereof is aesthetically pleasing by means of a metallic luster; surface corrosion does not easily occur; and damage caused by an external physical force is reduced.
Inventors:
YOO HEUNG SANG (KR)
Application Number:
PCT/KR2019/018767
Publication Date:
March 11, 2021
Filing Date:
December 31, 2019
Export Citation:
Assignee:
YOO HEUNG SANG (KR)
International Classes:
A45D34/04; A45D40/26; B65D51/32; C23C14/20
Foreign References:
| KR101342503B1 | 2013-12-17 | |||
| KR20140139711A | 2014-12-08 | |||
| KR20180116572A | 2018-10-25 | |||
| KR20070053498A | 2007-05-25 | |||
| KR20100102761A | 2010-09-27 |
Attorney, Agent or Firm:
KIM, Seok Kea (KR)
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