Method of creating a cosmetic spray

Inactive Publication Date: 2006-12-07
THOMPSON GUY RICHARD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0010] In a second aspect of the present invention, there is provided a product comprising a free-flowing liquid cosmetic composition and a hand-held spraying device suitable for spraying the same onto the human body, said device comprising a pre-atomisation chamber for the cosmetic composition, a means

Problems solved by technology

However, it is increasingly recognised that the addition to the atmosphere of VOCs/greenhouse gases may have detrimental environmental consequences and alternative means of spray generation have been sought.
Unfortunately, such devices tend not to produce good quality sprays, partly as a result of limited pressure that may be applied to the composition.
The poor spray quality often results in poor sensory properties o

Method used

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  • Method of creating a cosmetic spray

Examples

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Example

[0033] The spray device illustrated in FIG. 1 is in many respects similar to a device described in the aforementioned WO 91 / 14468. It comprises a body (1) in which there is defined a cylinder (2) of circular cross-section, in which a piston (3) is mounted for reciprocating movement. The cylinder (2) communicates with a pre-atomisation chamber (4) of reduced cross-section. The piston (3) has a reduced diameter portion (5) which sealingly engages within the pre-atomisation chamber (4), by means of a plastic sealing cap or ring provided on the piston portion (5).

[0034] A compression spring (6) is located in the cylinder (2), between the enlarged head of the piston (3) and an opposite end wall of the cylinder (2). An operating rod (7) is connected to the piston (3), and passes through the spring (7) and through a passageway (8) in the body (1). A latching means (9) attached to the body (1) engages with the rod (7) to latch the rod (7) in a position in which the surrounding spring (6) i...

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Abstract

A method of spraying a liquid cosmetic composition onto the surface of the human body comprising: (i) mechanically pressurising a free-flowing liquid cosmetic composition to a pressure of from 1.0 to less than 5.0 MPa; (ii) passing said composition through a swirl chamber, and (iii) expelling said composition through a 100 to 200 micron outlet nozzle onto the surface of the human body.

Description

[0001] The present is in the field of cosmetic spray products and methods of generating sprays. In particular, the invention concerns the generation of a spray from a liquid cosmetic composition without the use of a volatile propellant. [0002] Cosmetic spray devices of the prior art have utilised a variety of means for creating the spray. A widely used option has been to formulate a liquid cosmetic composition with a volatile propellant, such as a liquefied hydrocarbon or chlorofluorocarbon. However, it is increasingly recognised that the addition to the atmosphere of VOCs / greenhouse gases may have detrimental environmental consequences and alternative means of spray generation have been sought. [0003] As an alternative to the use of a volatile propellant, mechanical pressure may be used to expel a liquid cosmetic composition through a nozzle, thereby creating a cosmetic spray. Currently marketed cosmetic spray devices that operate in this manner are squeeze sprays and trigger spray...

Claims

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Application Information

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IPC IPC(8): B65D83/00B05B1/34B05B9/08B05B11/00
CPCB05B1/3436B05B9/0883B05B11/3091B05B11/3074B05B11/0043B05B11/026B05B11/1074B05B11/1091
Inventor THOMPSON, GUY RICHARDWARREN, SEANWIEGNER, THOMAS FRITZ
Owner THOMPSON GUY RICHARD
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