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Electrostatic spray device

A technology of electrostatic spraying and spraying cylinders, which is applied in the direction of electrostatic spraying devices, spraying devices, spray discharge devices, etc., can solve the problems of the level of batch production that cannot economically manufacture nozzle channels, and achieve good spraying quality effects

Inactive Publication Date: 2007-02-07
PROCTER & GAMBLE CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] While these methods have successfully provided electrostatic spray equipment that is safe to use and provides good spray results, it is difficult and / or not economical to manufacture nozzle channels and achieve mass production due to the difficulty of providing straight but precise small diameter nozzle channels. degree

Method used

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  • Electrostatic spray device
  • Electrostatic spray device
  • Electrostatic spray device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0141] Example 1: with Figure 4A The configuration of the electrostatic spraying equipment made of the following dimensions: d = 8.98mm, d2 = 7.46mm, d3 = 1.50mm, d4 = 2.05mm.

Embodiment 2

[0142] Example 2: with Figure 4C The configuration of the electrostatic spraying equipment made of the following dimensions: d = 7.19mm, d2 = 5.67mm, d3 = 3.56mm, d4 = 3.84mm.

[0143] Element

Example 1

Example 2

Example 3

Example 4

Example 5

Class A

Cyclopentasiloxane

15.65

15.81

14.88

15.55

13.22

Quaternary Ammonium-18 Hectorite Gel 1

3.00

Dimethylammonium distearate hectorite gel 2

3.00

Cyclopentasiloxane and Dimethicone Copolyol 3

12.13

11.46

10.74

10.40

10.40

Cetyl Dimethicone Copolymer 4

0.30

0.50

0.52

0.50

0.50

Class B

Hydrophobic treated titanium dioxide

4.41

12.03

5.51

5.35

5.35

Hydrophobic treated yellow iron oxide

0.88

2.45

0.65

0.64

0.64

Hydrophobic treated red ir...

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PUM

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Abstract

Disclosed is an electrostatic spraying device being configured and disposed to electrostatically charge and dispense a liquid composition from a supply to a point of dispersal, wherein the device comprises: a reservoir configured to contain the supply of liquid composition; a nozzle (250) a channel disposed between the reservoir and the nozzle; a high voltage electrode (430) being electrically connected to the high voltage power supply; a portion of the high voltage electrode (430) being disposed between the reservoir and the nozzle (280) and a nozzle pathway (300) disposed between the charging location (310) and the nozzle (280); the length of the nozzle pathway (300) governed by the following relationship: Vo / d < 4,000; wherein Vo is an output voltage (v) of the high voltage power supply; and d is the length (mm) of the nozzle pathway; wherein the nozzle pathway (300) comprises an outlet path disposed adjacent the nozzle (280), the outlet path having a diameter of from about 0.1 mm to about 1 mm and being a point or having a length of from about 0 mm to about 5 mm; and a main path disposed between the outlet path and the charging location (310), the main path having a diameter greater than the outlet path to about 5 mm and being straight or outwardly tapered towards the charging location at an angle of from about 0 to about 10 degrees; and / or wherein the high voltage electrode (430) comprises an antenna for facilitating flow of the liquid composition in the nozzle pathway; the antenna projecting at substantially the center of the nozzle pathway and having a basal diameter of from about 0.5 mm to about 7 mm, and a height of from about 0.5 mm to about 7 mm.

Description

field of invention [0001] The present invention relates to portable electrostatic spray equipment designed for personal use and a detachable spray cartridge for portable electrostatic spray equipment. More particularly, the present invention relates to improvements which provide good spray quality and safety for the user, and which also allow the equipment and / or spray cartridges to be manufactured in a convenient and economical manner. Background of the invention [0002] Portable electrostatic spraying devices for spraying liquid compositions, especially those utilizing detachable spray cartridges, are known in several patent publications such as WO 01 / 12336, WO 01 / 12335, US 2001-0020653A, US 2001-0038047A , US 2001-0020652A and US 2001-0023902A. As recognized in the art, the design of electrostatic spray equipment begins with determining spray quality factors such as drop diameter, drop diameter distribution, and spray area at a target distance from the object being spra...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B05B5/16B05B5/025
CPCB05B5/1691
Inventor 住吉彻布赖恩·M·卡德武博夫斯基戴维·E·威尔逊瑞安·N·布莱斯通
Owner PROCTER & GAMBLE CO