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Peltier effect device for producing cooling or heating sensations

A heat amplitude and hand piece technology, which is applied to the device field of applicator components, can solve the problem of not providing device use, etc., and achieve the effects of controlling heat emission, applying and handling or makeup effect comfortably, and optimizing heat dissipation

Active Publication Date: 2019-06-18
LOREAL SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It also does not provide for the use of devices for precisely treating narrow areas of the body

Method used

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  • Peltier effect device for producing cooling or heating sensations
  • Peltier effect device for producing cooling or heating sensations
  • Peltier effect device for producing cooling or heating sensations

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0159] Example 1: Using a thermogenic device in combination with a cellulite cream on the skin

[0160] Use from figure 1 device to generate heat. Tests were performed on skin explants.

[0161] Two measurements can be made:

[0162] 1) The rate and kinetics of penetration of the active agent into the skin are measured by microdialysis and sample analysis of the active agent.

[0163] 2) Measure the amount of active agent in the epidermal layer of the skin by taking a strip test piece and subjecting the active agent to assay.

[0164] The test was performed on an area treated with the formulation in combination with the device compared to an area treated with the same formulation without the device.

[0165] Use the following scheme:

[0166] - Skin treated with formulations and devices : Apply Cellu Destock® from Vichy containing 5% caffeine by weight (2 mg / cm 2 ). Afterwards, the skin is brought into contact with the heat-generating (40°C) device for approximately ...

example 2

[0177] Example 2: Use of heat-generating devices in conjunction with oxidation dyes on hair

[0178] Use the same setup as in Example 1.

[0179] To evaluate the action of heat on the dye, the oxidation dye Majirel® from L'Oréal with a shade of 6.62 and 9 parts of oxidant on 90% white natural white hair was used.

[0180] The device was used at a constant temperature of 56°C and the tresses were placed on plates maintained statically at 33°C throughout the treatment period.

[0181] Divide each strand in half. Depending on the application, half of the tress is treated with the device and the other half is used as a control.

[0182] Implement different applications and controls:

[0183] - Apply the device after the color has left for 2 minutes (2.4 or 6 minutes per side of the tress),

[0184] - Apply the device after the color stays for 5 minutes (2.4 or 6 minutes per side of the tress),

[0185] -Standard Stain Control, 30 minute dwell time (15 minutes per side).

[0...

example 3

[0187] Example 3: Device using refrigeration in combination with Tween 21® solution on the inner arms and scalp

[0188] Apply the following hydroalcoholic solution of Tween 21® to the inner area of ​​the arms and the scalp area:

[0189] Water (%RM)………………79.5%

[0190] Ethanol (%RM)………………20%

[0191] Tween 21(%RM)……………0.5%

[0192] (SM standard for "raw material").

[0193] Each area is divided into three sections 100, 101 and 102.

[0194] - apply the composition only to part 100,

[0195] - In addition to the composition, the device according to the invention is applied to the part 101 for one minute at ambient temperature in a slow sweeping motion

[0196] - In addition to the composition, the device according to the invention, cooled to 5° C., is applied to the portion 102 for one minute in a slow sweeping motion.

[0197]The temperature of each section 100, 101 and 102 is measured.

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PUM

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Abstract

The invention relates to a device for the cosmetic treatment of human keratin material, having a handpiece (1) comprising an electrical assembly (2), and an application member (3) secured to the handpiece (1) and defining an application surface (4) , the smearing surface (4) has a 50 to 200mm 2 Preferably between 70 and 150mm 2 and the handpiece (1) is designed to generate a heat amplitude greater than or equal to 5°C between the keratin material and the application surface (4) during at least 5 minutes, in particular greater than or equal to Equivalent to a heat amplitude of 20°C.

Description

technical field [0001] The present invention relates to a device having an application member capable of producing a cooling or heating sensation on keratin materials. Background technique [0002] The expression "cosmetic product" should be understood to mean any composition as defined in Council Directive 93 / 35 / EEC of 14 June 1993. [0003] In order to create a cooling sensation, application FR 2 894 460 proposes the use of applicator members cooled by prior placement in a refrigerator or freezer or by exposure to expanding compressed or liquefied gases or endothermic reactions. [0004] Patent US 3 750 255 teaches the use of the heat storage coefficient of the applicator ball in order to create a cooling sensation upon application. An example is given with a solid steel ball having a diameter of 32 mm and a weight of 141 grams. The disadvantage of this device is its weight, since in addition to the weight of the ball there is also the weight of the container containing ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A45D19/00A45D19/02A45D34/04A45D40/26A45D40/28A61F7/00
CPCA45D34/04A45D40/26A45D40/28A45D2019/0033A45D2200/155A45D2200/25A61F2007/0075A61F2007/0078A61F2007/0086A61F2007/0087A45D19/0041A45D19/012A45D19/02A45D19/16A61F7/007
Inventor G.维克S.努佐F.伍德兰J-Y.勒让德尔T.阿拉尼克
Owner LOREAL SA