nozzle

A nozzle and front-end technology, which is applied in the field of nozzles, can solve the problem that the needle-shaped part does not have liquid-proof performance, and achieve the effects of reliable small amount of dripping, reliable protection, and prevention of liquid residue

Active Publication Date: 2020-04-28
TOYO SEIKAN GRP HLDG LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] However, in the "eye drop container" described in Patent Document 1, there is a problem that although it is intended to reduce the amount of dripping by providing a fine needle-shaped portion at the tip of the nozzle, the needle-shaped portion itself does not have liquid-proof performance. During the dripping process, the liquid droplets will adhere to or remain on the tip of the nozzle including the needle-shaped part, and it will not be possible to perform stable quantitative dripping with repeated use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0108] In the nozzle 10A of the first embodiment, the surface of the tip portion 11A of the nozzle 10A is fluorinated and roughened by a predetermined method.

[0109] First, for the nozzle 10A formed of a plastic molded body made of a non-fluorine-based resin, fluorine atoms are incorporated in the molecular chain of the non-fluorine-based resin constituting the plastic molded body.

[0110] In addition, the surface of the tip portion 11A of the nozzle 10A thus fluorinated can be roughened as necessary.

[0111] Thus, by fluorinating and roughening the front end portion 11A of the nozzle 10A, the liquid repellency of the nozzle 10A can be improved (see image 3 , 4 ), it is possible to prevent the liquid (eye drops) injected from the container main body 2 from being wetted in a wide range with respect to the front end 11A of the nozzle 10A, and by adjusting and setting the inner diameter of the opening 11Aa, it is possible to arbitrarily set the The amount of dripping liqui...

no. 2 approach

[0120] The basic structure, material, etc. of the nozzle 10B of the second embodiment are substantially the same as those of the nozzle 10A of the first embodiment described above.

[0121] Furthermore, the structure of the nozzle tip of the nozzle 10B of the second embodiment is different from that of the nozzle 10A of the first embodiment.

[0122] That is, the front end surface of the nozzle 10B of the second embodiment has a first surface 11Ba positioned at the nozzle center side and a second surface 12Ba continuous with the outer peripheral side of the first surface 11Ba, and the first surface 11Ba and the second surface 12Ba are separated by a surface. Surface configurations having different free energies, specifically, the second surface 12Ba has a structure having higher liquid repellency than the first surface 11Ba.

[0123] More specifically, in figure 2 In the example shown, the nozzle 10B is comprised by combining the 1st drip part 11B and the 2nd drip part 12B w...

Embodiment

[0377] Hereinafter, an embodiment of the nozzle of the present invention will be described.

[0378] It should be noted that the present invention is further described through the following examples, but the present invention is not limited by the following examples.

[0379] [first embodiment]

[0380] First, an example of the nozzle 10A according to the first embodiment of the present invention will be described.

[0381] Table 1 below shows Examples 1-3 and Comparative Examples 1-3 of the nozzle of the present invention.

[0382] [Table 1]

[0383]

[0384] Examples 1-3 and Comparative Examples 1-3 shown in Table 1 were carried out under the following conditions.

[0385] (1) Test sample

[0386] §Nozzle body

[0387] ·Material

[0388] ·Low-density polyethylene

[0389] ·Level: LJ8041

[0390] ·Size: diameter 10mm x length 10mm

[0391] · Opening diameter: 0.1, 0.2, 0.3, 0.4mm

[0392] · Nozzle body manufacturing method

[0393] - Obtaining the nozzle with th...

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PUM

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Abstract

The present invention provides a nozzle that can achieve a small amount of dripping in an eye drop container, and does not deteriorate the dripping performance even if it is repeatedly used, and can reliably stabilize the dripping amount without variation. In addition, the tip of the nozzle can be reliably protected by the cap. The nozzle is the nozzle (10) of the eye drop container (1) formed by a plastic molded body made of a non-fluorine-based resin, and fluorine atoms are incorporated in the molecular chain of the non-fluorine-based resin constituting the plastic molded body. , the front end portion (11) of the nozzle (10) is a structure formed by roughening.

Description

[0001] This application is a divisional application of the international application number PCT / JP2016 / 001135, the national phase application number 201680013339.2, the application date is March 2, 2016, and the invention name is "nozzle". technical field [0002] The present invention relates to, for example, a nozzle provided in a spout portion of an eye drop container for eye drops, and capable of dripping a liquid in the container little by little. Background technique [0003] Usually, in an eye drop container or the like for eye drops, a nozzle is provided at the pouring part so that the liquid (eye drop) in the container can be dripped little by little. [0004] Here, the eyes of humans generally have the capacity to hold about 20 μl of tears, but with regard to the nozzles of conventional eye drop containers, the amount of one drop is usually about 30 to 40 μl, and almost half of the dropped eye drops will be lost. Such questions overflow from the eyes. [0005] The...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B65D47/18B65D47/06A61J1/05
CPCA61J1/05B65D47/06B65D47/18A61F9/0008A61F2250/0026A61F2250/0056C08J5/00C08J7/126C08J2323/06C08J2323/28
Inventor 长尾丈太郎冈本耕太岩崎力青谷正毅木村谕男
Owner TOYO SEIKAN GRP HLDG LTD
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