EP0150948A2 - Application de produits dépilatoires - Google Patents

Application de produits dépilatoires Download PDF

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Publication number
EP0150948A2
EP0150948A2 EP85300248A EP85300248A EP0150948A2 EP 0150948 A2 EP0150948 A2 EP 0150948A2 EP 85300248 A EP85300248 A EP 85300248A EP 85300248 A EP85300248 A EP 85300248A EP 0150948 A2 EP0150948 A2 EP 0150948A2
Authority
EP
European Patent Office
Prior art keywords
reservoir
applicator
composition
depilatory
applicator head
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP85300248A
Other languages
German (de)
English (en)
Other versions
EP0150948A3 (fr
Inventor
Malcolm James Thorogood
Michael R. Nesbit
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Louis Marcel Ltd
Original Assignee
Louis Marcel Ltd
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
Priority claimed from GB848400907A external-priority patent/GB8400907D0/en
Application filed by Louis Marcel Ltd filed Critical Louis Marcel Ltd
Publication of EP0150948A2 publication Critical patent/EP0150948A2/fr
Publication of EP0150948A3 publication Critical patent/EP0150948A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D26/00—Hair-singeing apparatus; Apparatus for removing superfluous hair, e.g. tweezers
    • A45D26/0014—Hair-singeing apparatus; Apparatus for removing superfluous hair, e.g. tweezers using wax
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D34/00—Containers or accessories specially adapted for handling liquid toiletry or cosmetic substances, e.g. perfumes
    • A45D34/04—Appliances specially adapted for applying liquid, e.g. using roller or ball
    • A45D34/041—Appliances specially adapted for applying liquid, e.g. using roller or ball using a roller, a disc or a ball

Definitions

  • the present invention relates to an improved applicator for depilatory materials, to a method of removing body hair and to a depilatory composition for use in the applicator.
  • Depilatory creams based on sulphur containing depilatory materials and alkalis have been known since the 1930's [see GB-A-484467 and US-A-1973130 and 2352524]. Generally speaking they are applied by hand or using a spatula as spreader which is a messy procedure. Ball applicators such as are commonly used in the toiletries industry are unsuitable for treatment of large or convex body areas such as the leg because they do not enable a sufficient area of the skin to be covered. A roller applicator has been described by Inverness International Corporation in Patent Specificaton No. GB-A-2113994, but only in the context of applying an epilatory wax at elevated temperatures.
  • the invention provides an applicator for applying a depilatory composition to the skin comprising a reservoir, a flowable chemical depilatory composition in the reservoir, an applicator head having a flow passage for the composition leading from the reservoir to a mouth, and a generally cylindrical applicator roller having an indented surface and journalled for rotation in the mouth.
  • the roller applicator has been found to be particularly effective for treatment of the legs and the reservoir may suitably contain sufficient depilatory composition to enable a pair of legs to be treated twice, the reservoir being re-sealed between treatments.
  • the reservoir may be removably connected to the applicator head by a threaded neck whose distal extremity is provided with a deformable circumferential flange, and the applicator head has a bore having a threaded portion that engages the neck and that leads to a convergent portion onto which the flange seats as the applicator head is screwed into position.
  • a removable plug air-tightly seals the neck of the reservoir and is provided with a guard that seats on the end of the neck to limit insertion and that is formed with a deformable circumferential region that engages the convergent portion of the bore above the flange.
  • the invention further provides a method of removing body hair which comprises applying to an area of the skin a chemical depilatory composition by means of an applicator as aforesaid, allowing the composition to react with the hair, removing the loosened hair and rinsing the skin area.
  • the invention yet further comprises a flowable depilatory composition for use in an applicator as aforesaid comprising up to 10% w/w of a sulphur-containing depilatory material, 0.5-30% w/w of an emulsifying wax to give an oils-in-water cream, 0.1-5% w/w of an inert cellulosic thickener that disperses in the aqueous phase and sufficient alkali to give a pH of 9.0-12.5.
  • a flowable depilatory composition for use in an applicator as aforesaid comprising up to 10% w/w of a sulphur-containing depilatory material, 0.5-30% w/w of an emulsifying wax to give an oils-in-water cream, 0.1-5% w/w of an inert cellulosic thickener that disperses in the aqueous phase and sufficient alkali to give a pH of 9.0-12.5.
  • the depilatory material present in the composition may be derived from a thio compound such as thioglycollic acid, thiolactic acid, 3-mercaptopropionic acid and thioglycerol.
  • the acids may be neutralised with alkali metals or alkaline earths such as lithium, sodium, potassium, calcium, barium and strontium.
  • Calcium thioglycollate is the preferred material because it combines high depilatory activity with low skin irritation.
  • the depilatory composition is desirably formulated to achieve a low fat content and give hydrophilic properties to the composition so that it wets the skin and is easy to remove.
  • the cream or lotion base of the oil in water kind may be formed by incorporating into the composition 0.5-30% of a non-ionic emulsifying wax such as that sold by Henkel under the tradename Dehydag AO which contains 80% cetostearyl alcohol and 20% cetomacrogol.
  • a non-ionic emulsifying wax such as that sold by Henkel under the tradename Dehydag AO which contains 80% cetostearyl alcohol and 20% cetomacrogol.
  • inert emollient waxes and oils such as pharmaceutical grade mineral..oil (heavy liquid paraffin) in amounts of up to 20% w/w.
  • the thixotropy of the composition is maintained at a minimum in order that it should stabilise at the correct viscosity for roller application and flow correctly through the reservoir and applicator head.
  • a non-ionic thickener is therefore incorporated into the aqueous phase of the composition, and inert cellulosic thickeners that disperse in the aqueous phase such as hydroxyethyl cellulose may be used in amounts of 0.1-5% w/w.
  • the latter material is film forming and protects the composition from yellowing due to atmospheric oxidation in the applicator head or on the surface of the applicator roller when the composition dries in air.
  • the pH adjuster is preferably at least in part a solid material in order that it may perform the additional function of influencing the flow properties of the composition, and for this purpose the composition may contain up to 10% w/w of an alkaline earth oxide or hydroxide such as ground calcium oxide together with up to 4% w/w of lithium hydroxide and a minor proportion of an alkali metal hydroxide such as sodium or potassium hydroxide to achieve the preferred pH of about 12.5.
  • an alkaline earth oxide or hydroxide such as ground calcium oxide together with up to 4% w/w of lithium hydroxide and a minor proportion of an alkali metal hydroxide such as sodium or potassium hydroxide to achieve the preferred pH of about 12.5.
  • the composition preferably also contains one or more sequestering agents that are effective for calcium ions at high pH values (i.e. pH 9 and above) and the sequestering agent may comprise a major proportion of sodium glucoheptonate and a minor proportion of N-hydroxyethyl ethylene diamine triacetic acid (HEEDTA) or a salt thereof such as the trisodium salt.
  • the composition may also contain incidental ingredients such as perfumes, humectants, antioxidants, U-V absorbers and preservatives.
  • a hair removal composition for roller application to the skin was made by mixing together the following ingredients (% w/w):
  • the above composition was charged into the reservoir of an applicator as further described below and was spread onto the skin to give uniform layers that engulfed the hairs and had an effective depilatory action, with minimised harshness to the skin and with minimised abrasive properties.
  • an applicator comprises a reservoir 10 having a threaded neck 11 onto which is screwed an applicator head 12 having a cut-out defining a mouth 13 that is generally rectangular in plan.
  • journal bearings 14 for stub axles of an applicator roller 15 having a pattern of axial splines or grooved indentations.
  • Other patterns of indentations such as dots, circumferential grooves or oblique grooves could be used, but a smooth roller is not desirable because there is then insufficient material transported as the roller rotates.
  • the clearance between the roller 15 and the head 12 is desirably in the range 0.1-0.5 mm preferably 0.25 mm.
  • the neck 11 has a proximal threaded region and at its distal end has a circumferential deformable flange 20 of generally triangular profile.
  • the head 12 has a threaded bore 21 into which the neck 11 is engaged and that leads to a convergent frustoconical region with a cone angle of about 15 degrees.
  • the flange 20 seats on the region 22 as the head 12 is screwed home and provides an effective seal against outflow of the viscous depilatory composition in the reservoir 10.
  • the combination of a deformable flange and a seat enables an effective seal to be maintained over a range of relative axial positions of the head 12 and reservoir 10 that accommodates manufacturing tolerances and means that it is not critical how tightly the head 12 is screwed home after removal.
  • the top of the reservoir 10 is a flattened oval in plan and the head 12 has a skirt 23 conforming to the outline of the top of the reservoir. Depending lugs 25 on the sides of the skirt 23 snap engage in indentations in the upper sides of the reservoir 10 to locate the head 12 relative to the reservoir 10.
  • the user can make an effective seal with the skirt 23 aligned with the top of the reservoir 10 and the provision of locking means defined by the lugs 25 and indentations defines the aligned position and helps to prevent the head 12 from being accidentally unscrewed from the reservoir 10 while the composition is being applied.
  • the neck 11 is closed by a removable bung 30 having circumferential deformable ribs 31 and a handle 32 of reduced diameter that fits without mechanical interference in the convergent region 22 of the applicator head 12.
  • the removable bung is preferred to other forms of closure so that the applicator shall have an adequate shelf life and the reservoir can be resealed as required.
  • the removable bung or stopper 30 is an injection moulding in low density polyethylene, the cover 19 is a moulding in clear polystyrene and the reservoir 10, applicator head 12 and roller 15 are mouldings in an anti-static grade of an acrylonitrile-butadiene-styrene copolymer (ABS).
  • the applicator is sold with the reservoir 10 charged with the composition of the Example, with the stopper 30 in place and with the head 12 and cover 19 in place as in Figures 1 and 2.
  • the customer is instructed to unscrew the head 12, remove the plug 30 and then return the head 12.
  • the volume of material in the reservoir 10 is more than is needed for a single treatment and the customer is instructed to remove and wash the head 12 and to replace the stopper 30 between treatments.
  • FIG. 7 The arrangement of Figure 7 is generally similar except that the bung 30 has a guard flange 35 that sits on top of the neck 11 of the reservoir and has been extended and finished with an acute angle repeating the same acute angle as the flange 20 on the neck of the reservoir.
  • the circumference of the flange 35 has been extended just so far as to come in contact with the cone 22 of the applicator head at the same time that the neck of the reservoir comes into contact 'with the cone.
  • the point B is deflected as the cone 22 interfaces with it to form a seal, and the same thing now happens at point A on the flange 35 to form a second seal.

Landscapes

  • Cosmetics (AREA)
EP85300248A 1984-01-13 1985-01-14 Application de produits dépilatoires Withdrawn EP0150948A3 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB8400907 1984-01-13
GB848400907A GB8400907D0 (en) 1984-01-13 1984-01-13 Application of depilatory materials
GB8409721 1984-04-13
GB848409721A GB8409721D0 (en) 1984-01-13 1984-04-13 Depilatory materials

Publications (2)

Publication Number Publication Date
EP0150948A2 true EP0150948A2 (fr) 1985-08-07
EP0150948A3 EP0150948A3 (fr) 1986-01-02

Family

ID=26287187

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85300248A Withdrawn EP0150948A3 (fr) 1984-01-13 1985-01-14 Application de produits dépilatoires

Country Status (3)

Country Link
EP (1) EP0150948A3 (fr)
AU (1) AU3880885A (fr)
WO (1) WO1985002984A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0249911A3 (fr) * 1986-06-20 1989-07-12 Giancarlo Vaj Dispositif pour délivrer de manière contrôlée des substances pâteuses
FR2641991A1 (fr) * 1989-01-24 1990-07-27 Reckitt Colman Rouleau directement amovible, notamment pour distribution de fluides
FR2736809A1 (fr) * 1995-07-18 1997-01-24 Seb Sa Appareil d'epilation a cire pourvu d'un rouleau applicateur a saignees sensiblement circulaires
ES2133207A1 (es) * 1996-01-23 1999-09-01 Nugar Bobinajes Sl Dispositivo de rodillo calentado para la aplicacion de depilatorios y similares.
EP2361526A1 (fr) * 2010-02-26 2011-08-31 Creline Cosmetique Appareil de traitement de la peau pour appliquer un liquide de traitement de la peau

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2627156B1 (fr) * 1988-02-12 1990-08-24 Simon Patrick Capsule de fermeture a element mobile pour flacons et autres recipients
CN109875221B (zh) * 2019-04-12 2021-10-01 北京小米移动软件有限公司 蜜蜡笔及运行方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2029056A (en) * 1933-12-01 1936-01-28 Carlson Res Corp Rotary spreader
US3100908A (en) * 1961-04-03 1963-08-20 Engle Paul Container cover with a roller applicator
BE630778A (fr) * 1962-04-09
GB997630A (en) * 1963-10-16 1965-07-07 Jerclaydon Inc Improvements in dispensing applicators
FR2041494A5 (fr) * 1969-04-25 1971-01-29 Roder Eberhard
DE2164430A1 (de) * 1971-12-24 1973-07-12 Menshen Georg & Co Kg Schraubverschluss fuer flaschen
US4168128A (en) * 1977-11-21 1979-09-18 Owens-Illinois, Inc. Seal roller dispensing package
EP0046038B1 (fr) * 1980-08-12 1988-04-27 International Chemical Company Limited Dispositif distributeur roulant
FR2499518A1 (en) * 1981-02-06 1982-08-13 Delalande Sa Flask for liquid cosmetic products - has cap and stopper with protective skirt screw fixing by inclined grooving
AU564359B2 (en) * 1982-01-29 1987-08-13 Styling Technology Corporation Hot wax hair remover apparatus

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0249911A3 (fr) * 1986-06-20 1989-07-12 Giancarlo Vaj Dispositif pour délivrer de manière contrôlée des substances pâteuses
FR2641991A1 (fr) * 1989-01-24 1990-07-27 Reckitt Colman Rouleau directement amovible, notamment pour distribution de fluides
EP0380391A1 (fr) * 1989-01-24 1990-08-01 Reckitt Et Colman France Rouleau directement amovible, en particulier pour distribution de fluides
FR2736809A1 (fr) * 1995-07-18 1997-01-24 Seb Sa Appareil d'epilation a cire pourvu d'un rouleau applicateur a saignees sensiblement circulaires
WO1997003584A1 (fr) * 1995-07-18 1997-02-06 Seb S.A. Appareil d'epilation a cire pourvu d'un rouleau applicateur a saignees sensiblement circulaires
ES2133207A1 (es) * 1996-01-23 1999-09-01 Nugar Bobinajes Sl Dispositivo de rodillo calentado para la aplicacion de depilatorios y similares.
EP2361526A1 (fr) * 2010-02-26 2011-08-31 Creline Cosmetique Appareil de traitement de la peau pour appliquer un liquide de traitement de la peau

Also Published As

Publication number Publication date
EP0150948A3 (fr) 1986-01-02
WO1985002984A1 (fr) 1985-07-18
AU3880885A (en) 1985-07-30

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Effective date: 19871221

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18D Application deemed to be withdrawn

Effective date: 19880501

RIN1 Information on inventor provided before grant (corrected)

Inventor name: THOROGOOD, MALCOLM JAMES

Inventor name: NESBIT, MICHAEL R.