WO2021083790A1 - Composition de shampoing sec - Google Patents

Composition de shampoing sec Download PDF

Info

Publication number
WO2021083790A1
WO2021083790A1 PCT/EP2020/079833 EP2020079833W WO2021083790A1 WO 2021083790 A1 WO2021083790 A1 WO 2021083790A1 EP 2020079833 W EP2020079833 W EP 2020079833W WO 2021083790 A1 WO2021083790 A1 WO 2021083790A1
Authority
WO
WIPO (PCT)
Prior art keywords
starch
dry shampoo
dry
isopropyl myristate
present
Prior art date
Application number
PCT/EP2020/079833
Other languages
English (en)
Inventor
Robert Wayne DAWSON
Michalina Elzbieta PIEKARSHA
Original Assignee
Unilever Ip Holdings B.V.
Unilever Global Ip Limited
Conopco, Inc., D/B/A Unilever
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Unilever Ip Holdings B.V., Unilever Global Ip Limited, Conopco, Inc., D/B/A Unilever filed Critical Unilever Ip Holdings B.V.
Publication of WO2021083790A1 publication Critical patent/WO2021083790A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q5/00—Preparations for care of the hair
    • A61Q5/02—Preparations for cleaning the hair
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
    • A61K8/0216—Solid or semisolid forms
    • A61K8/022—Powders; Compacted Powders
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
    • A61K8/37—Esters of carboxylic acids
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
    • A61K8/73—Polysaccharides
    • A61K8/732—Starch; Amylose; Amylopectin; Derivatives thereof

Definitions

  • the present invention is in the field of dry shampoo compositions, in particular relates to a dry shampoo composition with improved conditioning benefits.
  • Dry shampoos are compositions for cleansing the hair without washing with water.
  • the product provides clean feel and look on days when perhaps there is no opportunity, either through lack of time for conventional washing and drying or lack of available water, to wash the hair.
  • Dry shampoos work by absorbing the serum using sebum absorbers such as starches, and polymeric particles.
  • sebum absorbers such as starches, and polymeric particles.
  • Starches are one of the most commonly used sebum absorbers.
  • conditioning agents such as conditioning oils
  • sebum removal i.e. cleansing of the hair
  • conditioning benefits without losing the sensorial benefits. It is therefore an object of the present invention to provide a dry shampoo composition with improved conditioning benefits. It is another object of the present invention to provide a dry shampoo composition with improved conditioning benefits while maintaining the sensory benefits.
  • the present invention provides a dry shampoo composition
  • a dry shampoo composition comprising a base and a propellant; wherein the base comprises starch and isopropyl myristate, wherein the starch is present in an amount of 5 to 15% and isopropyl myristate in an amount of 0.30 to 1% by weight of the total composition.
  • the present invention provides use of starch and isopropyl myristate, wherein the starch is present in an amount of 5 to 15% and isopropyl myristate in an amount of 0.30 to 1% by weight of the total composition for providing a conditioning benefit when applying a dry shampoo to hair.
  • the dry shampoo according to the invention provides a cleaning product with improved conditioning benefits.
  • the present invention relates to a dry shampoo composition
  • a dry shampoo composition comprising a base and a propellant.
  • the dry shampoo composition comprises 5 to 20% of the base, preferably 10 to 18%, more preferably 13 to 16%.
  • the base comprises starch and isopropyl myristate.
  • the starch according to the invention includes starch derivates.
  • the starch is selected from corn starch, tapioca starch, rice starch, and modified starch in particular, modified corn starch and tapioca starch.
  • a preferred modified starch is aluminum starch octenyl succinate.
  • the starch is present in a concentration of 5 to 15%, preferably at least 6%, more preferably at least 7%, still more preferably at least 8%, even more preferably at least 9%, but typically not more than 14%, preferably not more than 13%, more preferably not more than 12%, still more preferably not more than 11%, even more preferably not more than 10% or even 9% by weight of the total composition.
  • the system is typically a cleansing system than a conditioning system.
  • Isopropyl myristate is used in the present invention as a conditioning agent.
  • the isopropyl myristate is present in a concentration of 0.30 to 1%, preferably at least 0.35%, more preferably at least 0.40%, but typically not more than 0.95%, preferably not more than 0.85%, more preferably not more than 0.75%, still more preferably not more than 0.65%, even more preferably not more than 0.55% or even 0.50% by weight of the total composition.
  • starch and conditioning oils have an interaction. While starch absorbs fatty sebum, it also inhibits conditioning oils. Wth isopropyl myristate there is an unexpected benefit at high starch concentrations and very low isopropyl myristate concentrations as defined herein, while at higher isopropyl myristate concentrations the benefit does not occur.
  • the dry shampoo composition of the present invention comprises an anti caking agent which is preferably silica.
  • the anti-caking agent is present in the base from 0.1 to 1% by weight of the total composition.
  • the dry shampoo composition of the present invention comprises an alcohol which is preferably ethanol.
  • the alcohol is present in the base from 0.5 to 20% by weight of the total composition.
  • Optional ingredients present in the base includes propylene glycol, fragrance, emotives.
  • the dry shampoo composition of the present invention comprises a propellant which serves to expel the base materials from the container.
  • the propellant used in the present invention can be any liquefiable gas conventionally used for aerosol containers.
  • suitable propellants include dimethyl ether and hydrocarbon propellants such as propane, n-butane and iso-butane.
  • the amount of the propellant used is governed by normal factors well known in the aerosol art.
  • the propellants are preferably present from 30% to 98%, preferably 33% to 90 %, more preferably 45% to 85%, even more preferably 55% to 85% by weight of the total composition.
  • Dry shampoo was applied by using a custom made, build in-house automated aerosol spray rig, which was designed to standardize the dosing of sprays onto the hair substrates.
  • a switch of hair was placed onto the switch holder and bottom of the switch was clamped to secure the switch in position.
  • the hair switch was sprayed with dry shampoo from 20 cm distance with spray rate of 1 g/s.
  • the dose of dry shampoo was 0.1 g of the product per gram of hair.
  • the hair switch was sprayed twice, half of the dose was applied and then the hair switch was rotated by 180 degrees by air piston and the other half of the dose was sprayed on the other side of the switch.
  • the switch was left to equilibrate with product on for an hour before the measurement.
  • Friction was measured using the texture analyser to obtain the dry friction value.
  • Friction measurement methodology All friction measurements were carried out under controlled conditions of 20 degrees and 50 % RH.
  • Friction was measured using a TA.XT2i Texture Analyser supplied by Stable Micro Systems, Surrey, UK.
  • the friction probe was a stainless-steel cylinder, which was coated with rubber material.
  • the load on the friction contact was approximately 560 g. When in use, an area of contact between the friction probe and the hair of approximately 1.0 cm 2 was achieved.
  • a switch of hair was securely mounted onto the texture analyser, the hair fibers being aligned by combing before being secured in a flat configuration.
  • the friction probe was placed onto the hair and moved along the hair at a speed of 10 mms 1 to measure the friction between the probe and the hair.

Abstract

La présente invention s'inscrit dans le domaine des compositions de shampoing sec, et concerne en particulier une composition de shampoing sec présentant des bienfaits d'après-shampoing améliorés. Malgré les développements de l'état actuel de la technique, il reste un besoin pour des shampooings secs améliorés. En particulier, il existe un besoin pour des compositions de shampooing sec pour fournir une élimination améliorée du sébum, c'est-à-dire un nettoyage des cheveux et également pour fournir des bienfaits d'après-shampoing accrus sans perdre les bénéfices sensoriels. C'est par conséquent un objet de la présente invention de fournir une composition de shampoing sec avec des bienfaits d'après-shampoing améliorés. Il a été découvert que pour des systèmes de nettoyage de shampooing sec comprenant une concentration élevée d'amidon, un bienfait d'après-shampoing peut être fourni avec de faibles concentrations de myristate d'isopropyle.
PCT/EP2020/079833 2019-10-30 2020-10-22 Composition de shampoing sec WO2021083790A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP19206288 2019-10-30
EP19206288.3 2019-10-30

Publications (1)

Publication Number Publication Date
WO2021083790A1 true WO2021083790A1 (fr) 2021-05-06

Family

ID=68424666

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2020/079833 WO2021083790A1 (fr) 2019-10-30 2020-10-22 Composition de shampoing sec

Country Status (2)

Country Link
AR (1) AR120337A1 (fr)
WO (1) WO2021083790A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1218222A (en) * 1967-09-20 1971-01-06 Dagra Nv Process for preparing a dry-shampoo in aerosol form
WO2013143935A2 (fr) * 2012-03-28 2013-10-03 Unilever Plc Composition
US20170319448A1 (en) * 2014-10-29 2017-11-09 L'oreal Composition comprising styling powder and/or sebum-absorbing powder and a zinc salt

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1218222A (en) * 1967-09-20 1971-01-06 Dagra Nv Process for preparing a dry-shampoo in aerosol form
WO2013143935A2 (fr) * 2012-03-28 2013-10-03 Unilever Plc Composition
US20170319448A1 (en) * 2014-10-29 2017-11-09 L'oreal Composition comprising styling powder and/or sebum-absorbing powder and a zinc salt

Also Published As

Publication number Publication date
AR120337A1 (es) 2022-02-09

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