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
  • A45D19/00—Devices for washing the hair or the scalp; Similar devices for colouring the hair
  • A45D19/012—Devices for colouring or bleaching separated strands of hair, e.g. highlighting
  • A45D19/018—Devices for colouring or bleaching separated strands of hair, e.g. highlighting comprising wrapping foils or foldable sheets for enclosing a strand of hair during treatment, e.g. frosting foils
• • 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
  • A45D19/00—Devices for washing the hair or the scalp; Similar devices for colouring the hair
  • A45D19/0041—Processes for treating the hair of the scalp
  • A45D19/0066—Coloring or bleaching

Definitions

• the present invention relates to hair colouring sheets or strips or meches which can be used for highlighting, lowlighting or streaking hair and which are dissolvable in water.
• a foil method in which a sheet of aluminium foil is held under a strand of hair to be treated with the sheet of aluminium foil being held as close against the scalp as possible before the bleach, tint or dye is applied to the isolated strand of hair.
• the free end of the aluminium foil is then folded or rolled towards the head to trap the isolated strand of hair within the foil. Since typically it is desired to treat a number of strands of hair in this way, it becomes difficult to hold the foil in place as the dye or bleach is being applied to other strands of hair and indeed during the waiting time while the bleach or dye is left on the hair to bring about the dying effect.
• the process often involves two pairs of hands to effectively treat one head of hair.
• Another method involves the use of liquid- impermeable or liquid-resistant sheets which incorporate a layer of adhesive.
• the process of highlighting, lowlighting or streaking hair involves separating a portion of the hair which is to be treated, from the remaining hair on the head, sticking one side of a liquid-impermeable sheet or strip to the portion of hair separated at the roots of the hair, spreading a bleach, tint or a dye over the separated strand of hair and then folding the other end of the sheet over the treated hair to form an envelope, which separates the treated hair from the remainder of the hair on the head.
• the sheets are typically impermeable to liquid and may be made of aluminium foil, or a plastics material.
• the sheets or strips used in this process are well known in the art and are often also called foils. Some examples of such sheets or foils are disclosed in US2004118424A, US4196741A, US 5,335,679B and US5664590A.
• US 2013/025 5713 discloses a laminate which has at least two layers.
• One layer of the laminate is a water-soluble polymer film containing active substances and at least one second layer of the laminate is a nonwoven fabric, a knitted fabric, a woven fabric or reform film, which consists of a water-soluble polymer which has an increased water retention capacity.
• the first layer is impregnated with an agent which is a bleaching agent, such as a peroxo compound.
• the laminate is used as a bleaching foil for bleaching hair.
• the advantage of the laminate is that, following addition of water, it becomes completely soaked similar to a sponge, and/or it retains a relatively large amount of water on the material surface.
• the water retention layer of the laminate is wet and then a hair tress is placed on the wetted water retention layer.
• the active ingredients are released by prolonged contact between the wetted water retention layer and the active-ingredient-containing layer. Once the active ingredients have acted on the hair, the laminate and any sheet like covering present is then manually removed from the hair and the hair is rinsed with water.
• a further object is to provide foils for hair colouring which can be flushed down the sink.
• a still further object is to remove the necessity to manually release a plurality of sheets or foils from the customer's head when only a small number of highlights are being applied.
• a still further object is to reduce the time and effort involved in removing the sheets or foils and disposing of them.
• a further object is to provide a method which is capable of allowing bleach, tint or dye to be applied to the roots of the hair.
• a still further object of the invention is to provide a hair colouring product which is dissolvable in water for ease of removal from the hair and which at the same time is impermeable to the dye or bleach used for colouring the hair.
• a sheet comprising one layer, which is resistant to bleach or hair dye and which is adapted to enclose a strand of hair from the remainder of the hair on the head wherein the sheet is dissolvable in water.
• the sheet may be impermeable to bleach or hair dye.
• the sheet may be composed of a single layer of material. Preferably the sheet dissolves rapidly on contact with water.
• the sheet may be elongated in shape and may comprise a crease or fold adjacent to its centre such that the sheet can be folded around an isolated strand of hair.
• a layer of water soluble adhesive may be coated on to the sheet adjacent the edge which would abut the scalp in use, for adhering the sheet to the hair and/or the scalp.
• a layer of adhesive may be provided on the edges of the sheet which do not abut the scalp in use, such that the sheet can be folded and fastened around a strand of hair.
• the substantially the entire surface of the sheet is coated with a water-soluble adhesive.
• the layer of adhesive may suitably be provided with a protecting strip, which is removable in use to expose the layer of adhesive.
• the sheet may be provided with a double coated adhesive tape which is adhered to the sheet adjacent to one edge so that one side of the tape may be fixed to the sheet and the other side, when exposed, may be adhered to the hair.
• a number of commercially available, pressure-sensitive adhesives may be used to secure the sheet or foil to the hair.
• the adhesive must be releasably adherent to the hair such that the adhesive dissolves in water.
• the sheet and the adhesive are dissolvable in water at a temperature which is suitable for washing hair.
• both the dissolvable sheet and dissolvable adhesive must not require extremely hot water to dissolve them to avoid the customer being burnt.
• the sheets may be made of a variety of water-soluble materials papers or plastics materials such as:- A water-soluble paper based on cellulose is available commercially from Extra
• PVA polyvinyl acetate
• Solublon a variety of PVA (polyvinyl acetate) water soluble films under the tradename Solublon. Water-soluble films are also available from PVA (polyvinyl acetate)
• the paper or plastics material is soluble in water, preferably warm water.
• the sheet and the water-soluble materials of the sheet are not impregnated with any chemical.
• the sheet does not comprise a water-retaining layer.
• Figure 1 shows a first embodiment of a hair colouring sheet in accordance with the present invention
• Figure 2 shows an alternative embodiment of a hair colouring sheet in accordance with the present invention
• Figure 3 shows a third embodiment of a hair colouring sheet having a fold line along its length.
• the water soluble sheet 1 is generally rectangular in shape with two short edges 2 and two long edges 3.
• the sheet 1 is approximately 258mm long by 100mm wide, although other dimensions could be used to accommodate different lengths of hair.
• the sheet has a water-soluble strip 4 of adhesive along one of the short edges 2.
• adhesive strips may also be provided along the long edges 3.
• the sheet 1 is placed under strands of hair separated from the head by the hairdresser and the strand of hair is pressed against the adhesive strip 4. Hair colourant is then applied to the hair strand.
• the sheet 1 is then folded over on itself to enclose the strand and pressed against the adhesive strip 4 so that the hair is trapped within the folded sheet.
• the hairdresser determines how long the colourant should be left on the hair and when the colour is developed sufficiently, the sheets 1 can be removed and the hair washed. As the hair is washed the sheets 1 left in the basin dissolve as the water used for washing the hair runs over them.
• the sheets 1 are tapered across their width, so that the sheet is 60mm wide along its short edges 2 and about 100mm wide across the middle.
• the sheet 1 may be formed with a crease or fold-line 5 adjacent the centre of its length. The fold-line 5 makes it easier for the hairdresser to fold the sheet over the coloured hair during application of the colouring product.
• Tests were conducted with the soluble sheets or foils of the invention with a number of commercially available hair colouring compositions, to test the suitability of the sheet in practice.
• the effect on the colour of the hair was assessed for patchiness or streakiness and to determine if there was any leakage of colour.
• the sheets were also tested to determine how they responded to heat and how long it took to rinse off. The results of the tests are shown in Table 1.

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• Cosmetics (AREA)

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• 2013
  • 2013-04-22 GB GB1307199.8A patent/GB2513315A/en not_active Withdrawn
• 2014
  • 2014-04-17 US US14/785,963 patent/US20160066672A1/en not_active Abandoned
  • 2014-04-17 CA CA2910557A patent/CA2910557A1/en not_active Abandoned
  • 2014-04-17 EP EP14718421.2A patent/EP2988621A1/de not_active Withdrawn
  • 2014-04-17 WO PCT/EP2014/057951 patent/WO2014173827A1/en active Application Filing
• 2015
  • 2015-04-21 HK HK15103842.7A patent/HK1203329A1/xx unknown

Patent Citations (1)

Non-Patent Citations (1)

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