JP2017500950A - Apparatus, associated kit and method for wave formation on the user's hair - Google Patents

Abstract

The appliance (14) comprises an insulating sheet (20) intended to be placed in contact with the user's hair, the insulating sheet (20) being flexible so as to be wrapped around the curler (12). The insulating sheet (20) includes at least one insulating layer (24) including chloroprene rubber.

Description

  The present invention relates to a device for waving on a user's hair, including an insulating sheet intended to be placed in contact with the user's hair.

  Current permanent technology for waving on the user's hair includes the following two steps:

  First, a reduction step is performed using a reducing agent to cleave the cystine bond in hair keratin, and subsequently an oxidation step using an oxidizing agent to recover the bond in reduced keratin Is done.

  Usually, during the reduction step, the reducing agent is applied after winding the hair around the perm curler. The reducing agent is typically a liquid, gel, or low-viscosity cream and therefore easily drip onto the scalp during application.

  This causes customer discomfort and scalp inflammation. Furthermore, such scalp discomfort makes it difficult to color the hair on the same day.

  In some examples, curlers used to wrap hair strands are heated to enhance the effectiveness of the reducing agent used in the reduction step. The amount of reducing agent can be reduced accordingly, which limits potential discomfort for the user.

  The use of heated curlers, however, is not fully satisfactory. In fact, curlers generate heat near the scalp, a sensitive part of the skin.

  Heating is sometimes unpleasant and even painful for the user.

  In order to overcome this drawback, Japanese Patent Application Laid-Open No. 2005-348965 provides an insulating sheet having a central slit. The lock of hair to be treated is engaged through the slit and the insulating sheet is applied to the scalp. The sheet provides a shield against the heat generated by the curler.

  However, the handling of the insulation sheet to surround the curlers and hair strands in concert with the fasteners is complicated to put in place.

  Furthermore, the instrument is very heavy, which can also be uncomfortable for the user.

JP 2005-348965 A

  One object of the present invention is to obtain a device for waving on the user's hair, said device being easy to handle and well adapted to protect the user, and This provides a strong and uniform curl effect for the user's hair.

  For this purpose, the present invention relates to a device of the type described above, wherein the insulating sheet is flexible so that it can be wrapped around the curler and the insulating sheet comprises at least one insulating material comprising chloroprene rubber. Including layers.

A device according to the present invention may include one or more of the following features, incorporated separately or in any suitable technical combination.
The thickness of the insulating layer is less than 5 mm, preferably less than 3 mm, and advantageously comprised between 0.1 mm and 0.5 mm.
The insulating sheet comprises an inner waterproofing layer attached to the inner surface of the insulating layer;
-The inner waterproof layer covers only part of the inner surface of the insulating layer.
The inner waterproof layer is a silicone polymer layer;
It includes an outer reinforcing layer assembled in contact with the insulating layer;
The outer reinforcing layer is made of fabric, advantageously a woven, knitted or non-woven layer.
The insulating sheet comprises an insulating body delimiting the slit and a strip projecting from the body, the strip can be wound around the curler;
The strip protrudes from the end of the body.
-The strip protrudes from the side of the slit.
The strip is movable between a curler introduction position where the strip is away from the slit and a curler winding position where the strip is at least partially inserted into the slit;

The present invention also provides
-Curlers,
-Appliances as above,
Relates to a wave forming kit.

The kit according to the present invention may include the following features.
The curler includes a curling body and a heating member received in the curling body.

The invention also relates to a method for waving on the user's hair comprising the following steps.
-Providing a kit according to the above.
-Placing curlers and hair tresses on an insulating sheet;
Wrapping at least a part of the insulating sheet around the curler and hair tress and wrapping around the curler.
-Locking a part of the strip around the curler;

The method according to the invention may include the following features:
The insulating sheet delimits the slit and the method comprises the following steps:
-Inserting a lock of hair through the slit.
-Placing curlers around the locks of hair;
-Engaging the free end of part of the insulating sheet in the slit;

  The invention will be better understood on reading the following description given solely by way of example in view of the following drawings.

1 is a front internal view of a first instrument for wave formation according to the present invention. FIG. FIG. 2 is a cross-sectional view of the device of FIG. 1 taken along line II-II. FIG. 2 is a rear view of the instrument of FIG. 1. FIG. 2 discloses successive steps of a wave forming method using a wave forming kit including the apparatus of FIG. FIG. 2 discloses successive steps of a wave forming method using a wave forming kit including the apparatus of FIG. FIG. 2 discloses successive steps of a wave forming method using a wave forming kit including the apparatus of FIG. FIG. 6 is a perspective front view of a second instrument according to the present invention. FIG. 8 is a rear view of the instrument of FIG. 7. FIG. 3 illustrates the successive steps of a wave forming method using a kit comprising a second instrument according to the present invention. FIG. 3 illustrates the successive steps of a wave forming method using a kit comprising a second instrument according to the present invention. FIG. 3 illustrates the successive steps of a wave forming method using a kit comprising a second instrument according to the present invention. FIG. 3 illustrates the successive steps of a wave forming method using a kit comprising a second instrument according to the present invention.

  A first waving kit 10 intended to form a wave on a user's hair is illustrated in FIGS.

  The kit 10 is intended to apply a permanent cosmetic to the user's hair tress to create a wave on the hair.

  As shown in these drawings, the kit 10 includes a curler 12 and an auxiliary device 14 for wave formation. The appliance 14 is configured to confine the lock of hair with the permanent cosmetic composition between the curler 12 and the appliance 14.

  Permanent cosmetic compositions generally comprise a hair reshaping agent for breaking cystine bonds in hair keratin. The hair reshaping agent is selected from among thiol reducing agents and non-thiol reducing agents, for example.

  The thiol reducing agent is preferably thioglycolic acid and its derivatives, in particular its esters, such as glycerol or glycol monothioglycolate, and thiolactic acid and its derivatives, in particular such as glycerol monothiolactate, Esters and their esters, such as 3-mercaptopropionic acid and its derivatives, in particular glycerol 3-mercaptopropionate and ethylene glycol 3-mercaptopropionate, and cysteamine and its derivatives, in particular N-acetyl. CM acyl derivatives thereof such as cysteamine and N-propionylcysteamine, monothioglycerol and derivatives thereof, in particular esters, cysteine and derivatives thereof, in particular N-acetylcysteine, N-alkanoyl Tain, and the esters, such as cysteine alkyl esters, and their salts may be selected from the group consisting of.

  Here, the “non-thiol reducing agent” means a reducing agent having no thiol group. The non-thiol reducing agent may preferably be selected from the group consisting of sulfites, bisulfites, sulfinates, phosphines, saccharides, reductones, and hydrides. More preferably, the non-thiol reducing agent is ammonium sulfites and ammonium bisulfites, and metal sulfites and metal bisulfites, more preferably alkali metal or alkaline earth metal sulfites and bisulfites, And more preferably, it may be selected from sodium sulfites and sodium bisulfites.

  In a variation, the cosmetic composition includes an oxidizing agent to restore binding in the reduced keratin. The oxidizing agent is selected from, for example, hydrogen peroxide, alkali metal bromates, ferricyanide peroxides, and compounds that can generate hydrogen peroxide by hydrolysis.

  For example, the oxidizing agent may be selected from aqueous peroxygen salts such as aqueous hydrogen peroxide, urea peroxide, alkali metal bromates and perborates and persulfates. In a preferred form, the oxidant may be selected from bromates such as hydrogen peroxide and alkali metal bromates.

  As shown in FIG. 4, the curler 12 includes a rod 16 and, advantageously, a heating member 18 disposed within the rod 16.

  The rod 16 is hollow or solid. The rod 16 defines an outer peripheral surface of rotation about axis A-A 'on which the hair strand is applied and wound.

  The heating member 18 can be activated to heat the outer surface of the rod 16 and the hair strands, in particular to enhance the interaction between the cosmetic and the hair.

  As shown in FIGS. 1-3, the instrument 14 includes an insulating sheet 20 that can be at least partially wrapped around the curler 12 and the user's hair, and a locking assembly that can maintain the sheet in a rolled configuration. Product 22.

The total inner area of the insulating sheet 20, for example, greater than 10 cm ^2, and smaller than 150 cm ^2.

  According to the present invention, as shown in FIG. 2, the insulating sheet 20 includes at least a central insulating layer 24. The insulating sheet 20 advantageously includes an inner waterproof layer 26 laminated on the inner surface of the insulating layer 24 and an outer reinforcing layer 28 laminated on the outer surface of the insulating layer 24. The insulating sheet 20 also includes an additional insulating layer 29 that is laminated to the outer surface of the outer reinforcing layer 28.

  In a variation, the insulating sheet 20 has no inner waterproof layer and includes a central insulating layer 24, an outer reinforcing layer 28, and an additional insulating layer 29.

The insulating layer 24 is made of chloroprene rubber, also named Neoprene (trademark). Chloroprene rubber or Neoprene ™ is a synthetic rubber produced by polymerization. It is generally the following chemical _composition, - having - [CH 2 -C (Cl) = CH-CH 2] n.

  Chloroprene rubber is typically produced by free radical polymerization of 2-chlorobutadiene. Advantageously, the chloroprene polymer is then crosslinked by a crosslinking agent such as a bifunctional nucleophile, a metal oxide (eg, zinc oxide), and thiourease.

  The thickness of the chloroprene rubber layer is less than 5 mm, preferably less than 3 mm, and advantageously comprised between 0.1 mm and 0.5 mm.

  The chloroprene rubber layer is flexible so that it can be deformed by touching, for example, by pinching between two adult human fingers.

The chloroprene rubber layer is lightweight. It advantageously has a density of less than 1.5 g / cm ³ and is preferentially comprised between 1.2 g / cm ³ and 1.3 g / cm ³ .

  Its modulus of elasticity is greater than 0.01 Mpa and may be included between 1 MPa and 20 MPa, and its compressibility is included between 30 Shore A and 100 Shore A. Elastic modulus and Shore compressibility are measured according to ISO868 and ISO7619 standards.

  The inner waterproof layer 26 is laminated on the inner surface of the insulating layer 24. In the example shown in FIGS. 1-6, it simply partially covers the outer surface of the insulating layer 24.

  The inner waterproof layer 26 is made of, for example, a silicone polymer. The silicone polymer provides a humidity retention effect, a waterproof effect, and a heat resistance effect.

  The inner waterproof layer 26 is also flexible so that it can be deformed by touching, for example by pinching between two fingers of an adult human.

  The thickness of the inner waterproof layer is less than 1 mm and is also comprised between 0.1 mm and 0.5 mm.

  The inner waterproof layer 26 can enclose cosmetics located between the insulating sheet 20 and the curler 12 to favor its application with respect to the user's hair.

  The outer reinforcing layer 28 is advantageously a fabric, in particular a textile fabric such as a woven, knitted or non-woven fabric.

  Its thickness is less than 1 mm and is advantageously comprised between 0.1 mm and 0.5 mm.

  The outer reinforcing layer 28 has higher strength than the insulating layer 24. This higher strength is characterized by a higher Young's modulus.

  The additional insulating layer 29 is advantageously made of chloroprene rubber, also named Neoprene ™. It advantageously has the same characteristics as the insulating layer 24.

  In the example of FIG. 1, the insulating sheet 20 can be wrapped around a flat insulating base 30 that is intended to be applied directly to the user's scalp and around the curler 12 and the user's hair. Intended strip 32.

  The flat insulating base 30 has, for example, an elongated shape along the axis B-B ′. The elongated shape is, for example, a polygon, for example, a rectangle or an oval.

  Its length taken along the extension axis B-B 'is greater than its thickness. It is included, for example, between 9 cm and 15 cm.

  The flat insulating base 30 defines a central slit 34 for engagement of the user's hair. The slit 34 advantageously extends along the extension axis B-B '.

  The slit 34 extends through the base 30 and opens to the inner and outer surfaces of the insulating sheet 20.

  The base 30 also defines a lateral end 37.

  The inner waterproof layer 26 only partially covers the outer surface of the insulating layer 24 at the base 30. The inner waterproof layer 26 is interrupted on one side of the slit 34 at a distance from the central slit 34.

  In the modification, the inner waterproof layer 26 does not cover the insulating layer 20 in the flat insulating base 30. The insulating layer 24 thus defines the outer surface of the flat insulating base 30.

  The outer surface of the flat insulating base 30 can be applied on the user's scalp to shield the scalp against heat and cosmetics.

  The thickness of the insulating layer 24 at the base 30 is advantageously greater than at the strip 32.

  The strip 32 protrudes from the flat insulating base 30.

  In the example of FIGS. 1-3, the strip 32 extends from the lateral end 36 of the flat insulating base 30 to the free end 38. In this example, the strip 32 has a trapezoidal outer contour with a width at the lateral end 36 of the flat insulating base 30 that is greater than the width at its free end 38.

  The inner waterproof layer 26 substantially covers the chloroprene rubber layer 24 except for the side region 40 located near the free end 38 in the wound strip 32.

  The strip 32 is manually moved by the user between the configuration for the introduction of the curler 12, for example shown in FIG. 4, and the rolled-up configuration of the curler 12, shown in FIGS. 5 and 6. Can be made.

  The introductory configuration shown in FIG. 1 is a stationary configuration of strips 32. In this configuration, the strip 32 extends in substantially the same plane as the flat insulating base 30. The insulating sheet 20 is substantially flat. The free end 38 of the strip 32 is located away from the base 30.

  In this configuration, the curler 12 may be placed over the inner waterproof layer 26 of the strip 32 as shown in FIG.

  In the rolled wrap configuration of FIG. 5, the free end of the strip 32 is redirected toward the flat insulating base 30 to form a roll 42 that surrounds the curler 12 and the user's hair. The distance between the free end 38 and the base is smaller than in the flat configuration.

  The locking assembly 22 includes a locking member 44 that extends over the lateral end 36 of the strip 32. The locking member 44 can cooperate with the end of the slit 34 to prevent movement of the strip 32 within the slit 34. In this example, the locking member 44 is formed by a linear cut extending preferably parallel to the longitudinal axis of the slit 34.

  The locking members 44 are positioned away from each other so that the distance from the base 30 gradually increases.

  Depending on the particular locking member 44 engaged in the slit 34, the diameter of the roll and / or the tension applied to the curler 12 may be adjusted by the user.

  A method for forming waves on the user's hair will now be described.

  The method first includes providing an instrument 14 according to the present invention.

  As shown in FIG. 4, the outer surface of the base 30 of the insulating sheet 20 is placed in its flat insertion configuration relative to the user's scalp. The hair strand is engaged into the slit 34 from the outer surface of the base 30 and protrudes beyond the inner surface of the base 30.

  The hair tress is then wound around curler 12. A curler 12 associated with the hair strand is placed in contact with the inner surface of the base 30.

  Perm cosmetics are applied to the hair strands.

  The user then moves the free end 38 of the strip 32 towards the base and winds the strip 32 around the curler 12. The user then introduces the free end 38 of the strip 32 into the slit 34 from the inner surface of the base 30 to the outer surface 32. The user then locks the strip 32 in place in the selected set of locking members 44 to adjust the degree of confinement and the tension applied to the curler 12 associated with the hair strands.

  The user then activates the heating element to heat the outer surface of the curler 12, the hair strands, and the cosmetic applied to the hair over a predetermined time.

  After a predetermined time, the free end 38 of the strip 32 is released and the curler 12 is removed.

  By using chloroprene rubber, the insulating layer 24 of the base 30 protects the user's scalp very efficiently from the heat generated by the curler 12.

  In addition, the insulating layer 24 located within the strip 32 effectively confines the heat generated by the curler 12 within the intermediate space between the curler 12 and the strip 32 so that the cosmetic and hair can interact with each other. Increase the efficiency of action.

  The inner waterproof layer 26 can be easily and efficiently cleaned for further reuse of the insulating sheet 20. When the insulating sheet 20 of the present invention containing no metal is used, rust due to metal hardware parts does not occur. It also contributes to thermal insulation by the insulating layer 24.

  The outer reinforcing layer 28 increases the durability and strength of the insulating sheet 20. It can also be decorated in various colors that enhance the aesthetics of the instrument 14.

  Thus, thanks to the device 14 according to the invention, it is easy and simple to apply a perm cosmetic on the user's hair in order to develop a permanent wave without imposing much product load on the hair. Wave performance is improved and the product is easy to use.

  The instrument 14 is lightweight, which improves user comfort during the permanent process.

  A second kit 50 according to the present invention is disclosed in FIGS.

  The kit 50 differs from the kit 10 in that the strip 32 protrudes directly from the end of the central slit 34 rather than from the side edge 36 of the flat insulating base 30.

  The strip 32 further includes a fixed shape 52 along its free end 38 to facilitate insertion of the free end 38 into the slit 34.

  A wave forming method using the kit 50 is disclosed in FIGS. In contrast to the first method disclosed in FIGS. 4 to 6, the hair strand 54 is first wound around the curler 12 (see FIG. 9). The curler 12 and the hair tress 54 wound around the curler 12 are then engaged in the slit 34 from the outer surface of the flat insulating base 30 to the inner surface of the flat insulating base 30 (see FIG. 10). ).

  Curler 12 is then placed on the inner surface of strip 32 as shown in FIG. The strip 32 is wrapped around the curler 12 to place the free end 38 in contact with the base 30. The free end 38 is subsequently inserted into the central slit 34, preferably with the help of a fixed shape 52, to lock the strip 32 in its winding configuration.

  The hair tress 54 wound on the curler 12 is then confined with the cosmetic between the roll 42 formed by the wound strip 32 and the outer surface of the curler 12.

  An example of a wave performance test using the second kit 50 according to the present invention, using a hair reshaping agent of the type shown in Table 1 (Table 1), using a heating process at 90 ° C. for 15 minutes, It was implemented.

  The type of oxidizing agent shown in Table 2 (Table 2) was then applied over 5 minutes.

  The reducing agent and oxidizing agent were prepared by stirring the raw materials at room temperature.

  The following results reported in Table 3 (Table 3) were obtained in comparison with prior art devices as disclosed in JP 2005-348965 A.

++: Very good performance over control +: Good performance over control

  The use of the second kit 50 according to the present invention surprisingly improves the general characteristics of the permanent wave formed on the hair and creates a wave that looks like a digital permanent with a strong curl at the tip of the tuft. .

DESCRIPTION OF SYMBOLS 10 First wave formation kit 12 Curler 14 Auxiliary device 18 Heating member 20 Insulation sheet, insulating layer 22 Locking assembly 24 Central insulating layer 26 Inner waterproof layer 28 Outer reinforcing layer 29 Additional insulating layer 30 Insulating base 34 Center Slit 38 Free end 40 Side region 44 Locking member 50 Second kit

Claims (15)

A device (14) for waving the hair of a user,
An insulating sheet (20) intended to be placed in contact with the user's hair;
The insulating sheet (20) is flexible to be wrapped around the curler (12);
The instrument (14), wherein the insulation sheet (20) comprises at least one insulation layer (24) comprising chloroprene rubber.   The device (14) according to claim 1, wherein the thickness of the insulating layer (24) is less than 5 mm, preferably less than 3 mm, and advantageously comprised between 0.1 mm and 0.5 mm. ).   The appliance (14) according to claim 1 or 2, wherein the insulating sheet (20) comprises an inner waterproof layer (26) attached to the inner surface of the insulating layer (24).   The instrument (14) of claim 3, wherein the inner waterproof layer (26) covers only a portion of the inner surface of the insulating layer (24).   The device (14) according to claim 3 or 4, wherein the inner waterproof layer (26) is a silicone polymer layer.   The instrument (14) according to any one of the preceding claims, comprising an outer reinforcing layer (28) assembled in contact with the insulating layer (24).   The device (14) according to claim 6, wherein the outer reinforcing layer (28) is made of fabric, advantageously a woven fabric layer, a knitted layer or a non-woven fabric layer.   The insulating sheet (20) includes an insulating body (30) that divides the slit (34), and a strip (32) protruding from the body (30), and the strip (32) is formed of the curler (12). 8. A device (14) according to any one of the preceding claims, which can be wound around.   The instrument (14) of claim 8, wherein the strip (32) protrudes from an end of the body (30).   The instrument (14) of claim 8, wherein the strip (32) protrudes from the side of the slit (34).   The strip (32) has a curler (12) introduction position where the strip (32) is separated from the slit (34), and the strip (32) is at least partially inserted into the slit (34). 11. A device (14) according to any one of claims 8 to 10, which is movable between a curler (12) winding position. -Curler (12);
An instrument (14) according to any one of the preceding claims,
A wave forming kit (10; 50).   The kit (10; 50) of claim 12, wherein the curler (12) comprises a curling body (30) and a heating member (18) received in the curling body (30). ). A method for wave formation on a user's hair comprising the following steps:
Providing a kit (10; 50) according to claim 12 or 13,
Placing a curler (12) and a lock of hair on the insulating sheet (20);
Wrapping at least part of the insulating sheet (20) around the curler (12) and the lock of the hair and wrapping around the curler (12);
-Locking a part of the strip (32) around the curler (12);
Including the method. The insulating sheet (20) delimits the slit (34), and the method includes the following steps:
-Inserting a lock of hair through the slit (34);
-Placing the curler (12) around the lock of hair;
-Engaging the free end of the part of the insulating sheet (20) in the slit (34);
15. The method of claim 14, comprising:

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