ITMI20110962A1 - METHOD AND DEVICE FOR THE EXTENSION APPLICATION - Google Patents

Description

DESCRIPTION

â € œMETHOD AND DEVICE FOR THE APPLICATION OF EXTENSIONâ €

FIELD OF THE TROVATO

The present invention relates to a method for applying extensions and a device useful for carrying out the method itself.

In particular, the invention is part of the hair styling / hairdressing sector for the development of women's and / or men's hairstyles.

STATE OF THE ART

The application of extensions is a cosmetic method aimed at improving and highlighting the hairstyle of a person, in particular it consists in the artificial integration of human hair. Unlike wigs, extensions do not have the function of creating a fictitious hairstyle on the head, but of thickening or lengthening the hair already present. They can be made with real human hair, or with other hair made from synthetic fibers.

The effects of the extensions are to simulate a type of hairstyle that normally could not be done with your own natural hair. As is well known, there are different methods for applying extensions.

A first method consists in applying, on a lock of natural hair of the person to whom the treatment is to be performed, a pre-formed artificial lock consisting of a predetermined number of natural and / or artificial hair. The artificial strand is grouped by sewing or applying clips. The method involves applying extensions to natural hair using adhesive or double-sided adhesive tapes. This method has first of all a purely aesthetic limitation, as the application of the adhesive / double-sided tape is visible. In fact, this makes it difficult to apply extensions to particularly exposed areas of the head, such as the upper part of the head. In addition to this, the fact of having to use pre-shaped extensions, consisting of a predetermined number of hairs, leads to a lack of freedom in the application of artificial hair and therefore the inability to sensibly follow the density of the natural hair of the person to whom you want to apply extensions.

A second method consists in the preparation of different natural hair strands of the person to whom the extensions are to be applied and corresponding artificial pre-shaped strands. The artificial lock is made up of a predetermined number of natural hair and / or made up of synthetic fibers. In particular, this method involves tying the artificial lock to the hair of the person to whom the extensions are to be applied. The aesthetic result of this technique is appreciable, but it turns out to be extremely limited in terms of tightness, in particular the knotting of the extensions has a poor duration over time.

A further method consists in fixing, on natural hair strands, pre-formed artificial hair strands consisting of a predetermined number of hairs through connectors. More specifically, the connector has a tubular shape whose external surface engages the artificial lock. The connector is arranged on one end of the artificial lock and allows the pre-set number of hairs to be kept united in a single block.

The method therefore consists in passing the lock of natural hair of the person to whom you want to apply the extensions inside the connector until it is placed in the desired position, which usually coincides with the hairline. Once the connector has been positioned, pressure is applied to the latter in order to squeeze and lock the connector, in particular the lock, on the personâ € ™ s hair.

As for the first method described, this technique too is very visible from an aesthetic point of view and therefore has considerable limitations with regard to the areas of application in particular. In addition to this, the method described has a poor duration over time.

A further method consists in the preparation of natural hair strands of the person to whom the extensions and artificial preformed strands consisting of a predetermined number of natural hair and / or made up of synthetic fibers are to be applied. The predetermined number of hairs is kept together by means of a predetermined quantity of solid glue. In particular, the artificial lock is held together by the glue at one end of the predetermined number of hairs. The glue comes in a solid state with a â € œVâ € shape or tubular or flat. First of all, the method involves overlapping the solid glue with an attachment portion of the natural hair strand which coincides with the attachment of the latter. Subsequently it is necessary to exert a pressure between the artificial lock and the natural hair lock that tends to bring them closer together. Therefore, the method foresees the contribution of thermal energy on the solid glue in order to allow a change of state of the latter. In particular, the energy input allows the glue to pass from the solid to the liquid state. In this way, by combining the pressure of union of the hair and the contribution of thermal energy, it is possible to bring the glue into contact both with the natural hair strand of the person to whom the extensions are to be applied and with the artificial strand. Subsequently, by ceasing the supply of energy, it is possible to solidify the glue which allows to trap, overlapping, the lock on the natural hair of the person to whom the extensions are to be applied. The techniques used to allow the glue to change state include, for example, the conduction of heat or alternatively the use of ultrasounds.

Aesthetically, the described method leads to a good result, however the heat applied to the glue can damage, in particular weaken the natural hair. Furthermore, the present technique is not very flexible, as it obliges the professional to use pre-established standard modules of artificial hair strands. In addition to the previous limitations, the following application does not allow total cohesion with the person's hair but a simple overlap. Moreover, this overlap tends to increase the thickness of the hair near the hairline in an uncontrollable (and sometimes visible) way.

Even if the aforementioned process sometimes allows to obtain good aesthetic results and a good duration over time, the predetermined quantity of glue present on the module is visible and also involves a considerable weighting of the hair due to its weight, greatly limiting flexibility and freedom of intervention by the operator.

PURPOSE OF THE FIND

The aim of the present invention is therefore to substantially solve all the drawbacks and limitations of the previous solutions.

A first objective of the invention is to provide an extremely flexible method that allows the professional total freedom to create the hairstyle.

A further main purpose of the invention is to provide a method that does not damage the hair of the person to whom the treatment is performed.

A further aim of the invention is to provide a method that allows to obtain an excellent aesthetic result, in particular that makes the artificial application of hair not very visible.

The aim of the invention is to provide a method that allows to obtain an artificial application that is very resistant and therefore long-lasting.

One or more of the objects described above and which will appear better in the course of the following description are substantially achieved by a method and a device for applying extensions in accordance with one or more of the attached claims.

Aspects of the invention are described below.

In a 1st aspect there is a method for the application of extensions comprising the following phases: prepare at least a predetermined number of hair belonging to a person to whom the extensions are to be applied, prepare at least one lock including a plurality of hair which have a free end in correspondence with an end portion (5) of the lock, prepare at least a predetermined quantity of glue suitable for connecting the lock with the predetermined number of hairs; the method for applying extensions, also including the following steps: position the end portion of the lock in correspondence with an attachment portion of the predetermined number of hairs so as to form a reciprocal interposition area and apply the predetermined amount of glue on the interposition area to allow the connection between the predetermined number of hairs and the lock.

In a 2nd aspect in accordance with the 1st aspect, the phase of preparing the predetermined quantity of glue and the subsequent application phase of the same takes place while maintaining the glue substantially at a constant temperature.

In a 3rd aspect, in accordance with any of the aspects preceding the phase of preparing the predetermined quantity of glue and the subsequent application phase of the same takes place without adding thermal energy to the predetermined quantity of glue.

In a 4th aspect in accordance with any of the preceding aspects the predetermined quantity of glue, during the application phase of the same on the predetermined number of hairs and / or on the lock, is presented in the liquid state.

In a 5th aspect in accordance with the previous aspect after the application phase of the predetermined quantity of glue, the latter passes from the liquid state to the solid state in order to allow the connection between the predetermined number of hairs and the lock .

In a 6th aspect in accordance with the 4th or 5th aspect after the application phase of the predetermined quantity of glue, the latter undergoes a polymerization process, which allows the condensation of the glue and the passage of the latter. from liquid to solid state.

In a 7th aspect in accordance with the previous aspect, the polymerization process is a step-by-step polymerization process.

In an 8th aspect in accordance with any of the preceding aspects, the predetermined quantity of glue is a chemical compound comprising at least 85% of ethylene cyanoacrylate.

In a 9th aspect in accordance with any of the preceding aspects the predetermined amount of glue is a chemical compound comprising at least 90% ethylene cyanoacrylate.

In a 10th aspect in accordance with any of the above the predetermined amount of glue is a chemical compound comprising at least 95% ethylene cyanoacrylate.

In an 11th aspect in accordance with any of the preceding aspects the predetermined quantity of glue is a chemical compound comprising at least 0.1% of methacrylate.

In a 12th aspect in accordance with any of the preceding aspects the predetermined quantity of glue is a chemical compound comprising at least 5% of methacrylate.

In a 13th aspect in accordance with any of the preceding aspects the predetermined amount of glue is a chemical compound comprising at least 9% methacrylate.

In a 14th aspect in accordance with any of the preceding aspects, the step of preparing the predetermined number of hairs comprises the sub-step of grouping the latter so as to substantially form a lock of hair.

In a 15th aspect in accordance with any of the preceding aspects, the phase of grouping the predetermined number of hairs comprises the sub-phase of distancing the lock of hair, formed by the predetermined number of hairs, from the remaining hair of the person to whom the hair is to be applied. extension.

In a 16th aspect in accordance with the previous aspect, the spacing phase comprises the sub-phase of placing at least one separation element around the lock of hair composed of the predetermined number of hairs.

In a 17th aspect in accordance with the previous aspect, the separation element is placed substantially in proximity to the skin.

In an 18th aspect in accordance with the 16th or 17th aspect, the spacer element is configured to distance, at least near the separation element, the predetermined number of hairs from the remaining hair of the person to whom it is desired apply extensions.

In a 19th aspect in accordance with any of the preceding aspects, the attachment portion of the predetermined number of hairs is arranged substantially in proximity to the attachment of the latter on the skin.

In a 20th aspect, in accordance with any of the preceding aspects, the step of preparing the predetermined quantity of glue comprises the sub-phase of preparing a dispenser configured to allow the containment and dispensing of said predetermined quantity of glue on the interposition area.

In a 21 ° aspect in accordance with the previous aspect, the dispenser comprises at least one container which extends along an extension direction and defines inside it a housing compartment, the container comprising at least one main opening the which puts the housing compartment in communication with the external environment, said container being configured to contain and dispense the predetermined quantity of glue from the main opening. In a 22 ° aspect in accordance with the previous aspect, the container comprises at least a first element and at least a second element engaged together to form said housing compartment.

In a 23 ° aspect in accordance with the previous aspect the first and the second element are mobile with respect to each other,

In a 24 ° aspect in accordance with the previous aspect, the dispenser comprises at least a maneuvering portion configured to vary the relative position between the first and second element and consequently the internal volume defined by the housing compartment.

In a 25 ° aspect in accordance with the previous aspect, the maneuvering portion is configured to allow, in a dispensing condition, the reduction of the volume defined by the housing compartment and consequently allow the glue to escape from said main opening.

In a 26 ° aspect in accordance with the 23 ° or 24 ° or 25 ° aspect the first element is movable by relative sliding along the direction of extension of the container. In a 27 ° aspect in accordance with any one of the 23 ° to 26 ° aspects the second first element is movable by relative sliding along the direction of extension of the container.

In a 28 ° aspect in accordance with any of the aspects from 24 ° to 27 ° the maneuvering portion allows, during the dispensing condition, a series of axial displacements of the first and / or second element along the direction of extension of the container itself .

In a 29 ° aspect in accordance with any one of the aspects from 24 ° to 28 ° the maneuvering portion, during the dispensing condition, moves in a rotary motion about an axis of rotation.

In a 30 ° aspect in accordance with the previous aspect, the axis of rotation is substantially parallel to the direction of extension of the container.

In a 31 ° aspect in accordance with any of the aspects from 24 ° to 30 ° the maneuvering portion is integral with said first or second element,

In a 32 ° aspect in accordance with any of the aspects from 24 ° to 31 ° the axis of rotation of the maneuvering portion is substantially coincident with the direction of extension of the container.

In a 33 ° aspect in accordance with any one of the aspects from 21 ° to 32 ° the container has a substantially tubular shape having said main opening on one end.

In a 34 ° aspect in accordance with any one of the aspects from 20 ° to 33 ° the dispenser comprises a cartridge arranged inside the housing compartment comprising a jacket able to contain at least the predetermined quantity of glue and a movable piston inside said shirt.

In a 35 ° aspect in accordance with the previous aspect, the shirt includes a passage opening designed to allow the glue to come out of the shirt itself.

In a 36 ° aspect in accordance with the 34 ° or 35 ° aspect the piston is configured to allow the volume variation of the jacket and to allow the glue to escape from said passage opening.

In a 37 ° aspect in accordance with the 34 ° or 35 ° or 36 ° aspect the piston is configured to allow the volume reduction of the jacket and to allow the glue to escape from said passage opening.

In a 38 ° aspect in accordance with any of the aspects from 34 ° to 37 ° the predetermined quantity of glue is contained inside the shirt.

In a 39 ° aspect in accordance with any of the aspects from 35 ° to 38 ° the predetermined quantity of glue is between the passage opening and the piston.

In a 40 ° aspect in accordance with any of the aspects from 35 ° to 39 ° the piston, during the movement phase which determines the approach of the piston itself to the passage opening, pushes the glue out of the passage opening.

In a 41 ° aspect in accordance with any of the aspects from 35 ° to 40 °, the passage opening is located near the main opening.

In a 42 ° aspect in accordance with the previous aspect, the passage opening is arranged in correspondence with the main opening.

In a 43 ° aspect in accordance with any of the aspects from the 35 ° to the 42 ° aspect, the glue coming out of the passage opening allows the glue to come out from the main opening.

In a 44th aspect in accordance with any of the 34th to 43rd aspects the cartridge exhibits a prevailing development direction.

In a 45 ° aspect according to the previous aspect the prevailing direction of development of the cartridge is parallel to the direction of extension of the container. In a 46 ° aspect according to the previous aspect, the prevailing direction of development of the cartridge coincides with the direction of extension of the container.

In a 47 ° aspect in accordance with any of the aspects from 44 ° to 46 ° the piston is mobile by sliding inside the liner along the prevailing development direction.

In a 48 ° aspect in accordance with any one of the 34 ° to 47 ° aspects the cartridge comprises a first end, a second end and a thrust element connected to said piston and emerging from said second end. In a 49 ° aspect in accordance with the previous aspect, the thrust element emerges from said second end along the prevailing development direction of the cartridge.

In a 50th aspect in accordance with the 48th or 49th aspect, the first end of said cartridge is in contact with said first element.

In a 51st aspect in accordance with the 48th or 49th or 50th aspect the pushing element is in contact with the second element.

In a 52 ° aspect in accordance with any of the 34 ° to 51 ° aspects the cartridge is configured to vary the internal volume of the liner to a variation of the internal volume of the housing compartment.

In a 53 ° aspect in accordance with any of the aspects from 48 ° to 52 ° the second element, during the delivery condition, pushes the thrust element which in turn moves the piston along the prevailing direction of development of the cartridge, the sliding of the piston allows the glue to escape from said main opening.

In a 54 ° aspect in accordance with any of the aspects from 48 ° to 53 °, the first element comprises a stop portion adapted to abut the first end of the cartridge and which is configured to keep the cartridge in position during the condition of dispensing.

In a 55 ° aspect in accordance with any of the aspects from 48 ° to 54 ° the second element comprises a thrust portion adapted to contact the thrust element and configured to thrust the latter during the delivery condition.

In a 56th aspect in accordance with any one of the 34th to 55th aspects the cartridge has a substantially tubular shape.

In a 57 ° aspect in accordance with any one of the 34 ° to 56 ° aspects the jacket has a substantially tubular shape.

In a 58 ° aspect in accordance with any of the 34 ° to 57 ° aspects the piston has a shape adapted to slide in the jacket.

In a 59 ° aspect in accordance with any of the 34 ° to 58 ° aspects the piston has a cylindrical shape.

In a 60 ° aspect in accordance with any one of the aspects from 23 ° to 59 °, the first and the second element have respectively a first and a second engagement portion adapted to allow the engagement of the elements themselves. In a 61 ° aspect in accordance with the preceding aspect, the first engaging portion comprises a thread while the second engaging portion comprises a thread adapted to engage the thread of the first element. In a 62 ° aspect in accordance with any of the aspects from 33 ° to 61 ° the maneuvering portion is arranged on one end of said container.

In a 63 ° aspect in accordance with any one of the aspects from 24 ° to 62 ° the maneuvering portion has a substantially discoidal shape emerging from said container in a transverse direction with respect to the direction of extension of the same.

In a 64 ° aspect in accordance with any one of the 24 ° to 63 ° aspects the maneuvering portion comprises at least a gripping portion disposed at least partially on an outer perimeter surface of the disc.

In a 65 ° aspect in accordance with the previous aspect, the gripping portion has a higher friction coefficient than that of the container. In a 66th aspect in accordance with the 64th or 65th aspect, the gripping portion comprises a rubber ring or alternatively an external surface processing.

In a 67 ° aspect in accordance with the previous aspect, the external surface processing comprises a knurled surface or a grooved surface or any external processing capable of attributing a greater roughness to the sealing portion than a non-machined surface of the container.

In a 68 ° aspect in accordance with any one of the aspects from 34 ° to 66 °, the cartridge comprises a metering device arranged in correspondence with the passage opening of the same, said metering device emerging from said container and presenting an elongated shape particularly with cylindrical symmetry , said metering device having a first end engaged at the first end of the first element and a second end opposite said first end with respect to the metering device itself, said metering device presenting a through cavity extending along the prevailing direction of development of the cartridge and which communicates of fluid the jacket with the external environment, said through cavity having a first opening arranged at the first end of the dispenser and a second opening arranged at the second end of the dispenser, said first opening presenting a passage section of the glue substantially coinciden with the passage area of the passage opening, said second opening having a passage section of the glue lower than the passage section of the first opening, the reduction of the passage area from the first to the second opening allowing the dispenser to increase the sensitivity of dispensing of the predetermined quantity of glue and to increase the precision during its application. In a 69 ° aspect in accordance with any of the preceding aspects, the phase of preparing the lock includes a sub-phase of setting up a dispenser configured to carry a plurality of hair and allow the release of the latter in an extraction situation characterized by Application of a pulling force on the hair to release the latter from the dispenser itself. In a 70 ° aspect in accordance with the previous aspect, the dispenser comprises a first and a second gripping portion facing each other, said plurality of hair being interposed between said first and second gripping portion which exert a force of closure.

In a 71 ° aspect in accordance with the preceding aspect, the first and second gripping portions have, in correspondence with their respective faces facing each other, a plurality of protruding elements capable of interfering with the hair interposed between the gripping portions themselves.

In a 72 ° aspect in accordance with the 70 ° or 71 ° aspect the first grip portion is basically a hooked or slotted Velcro strip.

In a 73 ° aspect in accordance with the 70 ° or 71 ° or 12 aspect the second grip portion is substantially a hooked or slotted Velcro strip.

In a 74th aspect in accordance with any one of the 69th to 73rd aspects the dispenser comprises at least one locking element configured to couple the first and second gripping portions and define a locking condition.

In a 75 ° aspect in accordance with any one of the aspects from 71 ° to 74 ° the locking element allows the gripping of the emerging elements on the plurality of hairs interposed between said first and second gripping portion.

In a 76 ° aspect in accordance with the 74 ° or 75 ° aspect, the locking element comprises a sewing process at least on the edge from which the plurality of hair emerges.

In a 77 ° aspect in accordance with any one of the 70 ° to 76 ° aspects the dispenser comprises at least one covering element disposed on the external surface of said first and / or second gripping portion.

In a 78 ° aspect in accordance with the previous aspect, the covering element comprises a strip of fabric suitable for covering at least partially said first and / or second gripping portion.

In a 79 ° aspect in accordance with any one of the aspects from 70 ° to 78 ° the dispenser comprises at least one support structure adapted to engage said first and / or second gripping portion, said support structure being configured to allow the hair, engaged inside the gripping portions, to arrange themselves in a condition of extension which facilitates their gripping.

In an 80 ° aspect in accordance with the previous aspect, the support structure is adjustable in height.

In an 81 ° aspect in accordance with the previous aspect, the support structure allows the disposition of the hair engaged inside the grip portions to be arranged in two extension positions.

In an 82 ° aspect in accordance with the previous aspect, the support structure allows the arrangement of the hair engaged inside the gripping portions to be arranged in a plurality of extension positions having different heights. In an 83 ° aspect in accordance with any one of the aspects from 79 ° to 82 ° the support structure comprises a fixed part comprising a support base and a guide engaged to said support base which extends transversely, in particular vertically, with respect to said support base, the support structure further comprises a movable part which comprises a guide able to engage with the guide of the fixed part and a bearing portion able to engage the first and / or the second gripping portion , said movable part being movable relative to said fixed part by sliding along said guides, the movement of the movable part allows the hair engaged inside the gripping portions to be brought to different heights.

In an 84 ° aspect in accordance with any of the preceding aspects, the phase of application of the predetermined quantity of glue includes the sub-phase of working the hair in correspondence with the interposition area, the hair processing phase is configured to favor the penetration of the glue in the predetermined number of hairs and in the lock.

In an 85 ° aspect in accordance with the previous aspect, the phase of working the hair includes the following phases: grasp the interposition area of the hair, apply pressure on the interposition area suitable for joining the lock and the predetermined number of hair and allowing an expansion and penetration of the predetermined quantity of glue over the entire interposition area, moving the interposition area in such a way as to allow a uniformity of engagement between the predetermined number of hairs and the lock.

In an 86 ° aspect in accordance with the previous aspect, the phase of moving the interposition area consists in performing a back and forth rubbing of the predetermined number of hairs and the lock.

In an 87 ° aspect in accordance with the 85 ° or 86 ° aspect, the phase of working the hair includes the sub-phase of preparing at least one rubbing element configured to allow the movement of the interposition area and sliding on the latter in order to to be able to perform the back and forth movement during the solidification of the glue.

In an 88 ° aspect in accordance with the previous aspect, the rubbing element comprises a sheet having a rubbing surface capable of contacting and sliding on the interposition zone.

In an 89 ° aspect in accordance with the previous aspect the sheet comprises at least one, selected from the group, of the following materials: paper, plastic, aluminum or a combination of these.

In a 90 ° aspect in accordance with any of the 87 ° to 89 ° aspects the method comprises the step of providing at least container configured to carry a plurality of rubbing sheets.

In a 91 ° aspect in accordance with the previous aspect, the container has an attachment portion configured to allow engagement of the container itself on the person performing the application of the extensions, in particular in which said attachment portion comprises basically a cuff designed to abut the wrist and / or forearm of the person applying the extensions.

In a 92 ° aspect there is a dispenser configured to allow the containment and dispensing of a predetermined quantity of glue, said dispenser comprises at least one container which extends along an extension direction and defines a compartment inside housing, said container comprising at least one main opening which places said housing compartment in communication with the external environment, said container being configured to contain and dispense the predetermined quantity of glue from the main opening, and in which said container comprises at least a first element and at least a second element engaged together to form said housing compartment and movable with respect to each other, said dispenser comprising at least a maneuvering portion configured to vary the relative position between the first and the second element and consequently the internal volume defined by the housing compartment, said hand portion being configured to allow, in a dispensing condition, the reduction of the volume defined by the housing compartment and consequently allow the glue to escape from said main opening.

In a 93 ° aspect in accordance with the previous aspect, the first and second elements are movable by relative sliding along the direction of extension of the container, said maneuvering portion allowing, during the dispensing condition, a series of axial displacements of the first and / or of the second element along the direction of extension of the container itself, and in which the maneuvering portion, during the dispensing condition, rotates around an axis of rotation substantially parallel to the direction of extension of the container, and in which the maneuvering portion is integral with said first or second element and in which the axis of rotation of the maneuvering portion is substantially coincident with the direction of extension of the container.

In a 94 ° aspect in accordance with the previous aspect, the dispenser comprises a cartridge arranged inside the housing compartment comprising a jacket able to contain at least the predetermined quantity of glue and a movable piston inside said jacket, the latter comprising a passage opening designed to allow the glue to come out of the jacket itself, said piston being configured to allow the volume variation, in particular the volume reduction, of the jacket and allow the glue to escape from said passage opening, and in which the predetermined quantity of glue is contained inside the jacket and interposed between the passage opening and the piston, the piston, during the handling phase which determines an approach of the piston itself at the passage opening, pushes the glue out of the passage opening, and in which the passage opening is arranged in proximity, in particular in correspondence with the main opening, and where the glue coming out of the passage opening allows the glue to come out from the main opening.

In a 95 ° aspect there is a dispenser configured to carry a plurality of hair and allow the release of the latter in an extraction situation characterized by the application of a pulling force on the hair capable of releasing the latter. from the dispenser itself.

In a 96 ° aspect in accordance with the preceding aspect, the dispenser comprises a first and a second gripping portion facing each other, said plurality of hair being interposed between said first and second gripping portion which exert a force on the hair closing.

In a 97 ° aspect in accordance with the preceding aspect, the first and second grip portions have a plurality of protruding emerging elements in correspondence with their respective faces facing each other, capable of interfering with the hair interposed between the gripping portions themselves .

BRIEF DESCRIPTION OF THE DRAWINGS

Some embodiments and some aspects of the invention will be described hereinafter with reference to the accompanying drawings, provided for indicative and therefore not limiting purposes only, in which:

Figure 1 is a perspective view of a dispenser according to a first embodiment;

Figure 2 is a perspective view of a first model of dispenser according to a second embodiment;

Figure 3 is a perspective view of a second model of dispenser according to the second embodiment;

Figure 4 is a perspective view of a third model of dispenser according to a second embodiment;

> Figure 5 is an exploded view of the dispenser of figure 4;

> Figure 6 is a view according to a cross section of the dispenser of Figures 4 and 5;

> Figure 7 is a perspective view of a dispenser;

> Figure 8 is an exploded view of Figure 7;

> Figure 9 is a schematic detail and a side view of the dispenser of figures 7 and 8;

> Figure 10 is a representation of a phase relating to an extension application method;

> Figure 11 is a representation of a further phase of the method for applying extensions;

> Figure 12 is a representation of a further phase of the method for applying extensions.

DETAILED DESCRIPTION

The invention set out below concerns a method for applying extensions which can be applied both in the private sphere and within dedicated structures operating in the cosmetic treatment sector.

The extensions are artificial integrations of human hair designed to thicken and / or lengthen the hair already present, in such a way as to obtain effects or hairstyles that are difficult to obtain with the hair of the subject to be styled.

The extensions can be made with human hair or alternatively with synthetic fibers capable of effectively emulating the natural hair of the people on whom the extensions are to be applied. The latter are made with different length, thickness and color in order to be able to carry out applications with an excellent aesthetic synergy on people with different types of hair.

In the course of this description reference will be made to artificial strands / hair to indicate the extensions that must be applied to the subject's 'live' hair which, as mentioned, may / may be defined as real or artificial hair.

The invention deals with a method for applying extensions that involves the use of glue for the integration of natural hair. Before describing the method, the devices that can be used to carry out the method will be described in detail.

In particular, with reference to the accompanying figures, 11 generally indicates a dispenser configured to contain and deliver a predetermined quantity of glue 6 useful for connecting the artificial hair to the natural hair of a person.

A first embodiment, visible in figure 1, shows a dispenser 11 consisting of a container 17 made in a single piece that allows both containment (in particular the glue is directly inserted and in contact with the internal walls of the container), and the dispensing of the predetermined quantity of glue 6. By detailing the structure of the container 17 it is possible to say that the latter defines inside it a housing compartment 18 having a predetermined volume V in which the glue is placed.

The container 17 has, without limitation, an elongated shape capable of allowing an excellent grip and use to the person who intends to apply the glue.

The container 17 has, in a non-limiting way, an elongated cylindrical shape developing along an extension direction 19 delimited by a first and a second ends 20a, 20b.

Going into further detail, the dispenser 11 comprises a main opening 24 which places the housing compartment 18 in fluid communication with the external environment and which allows the glue to escape from said main opening 24. The The main opening 24 is arranged in a non-limiting way, on one end of said container 17, in particular arranged on the first end 20a of the container. The main opening 24 extends along a direction parallel to the direction of extension 19 of the container 17, in particular it extends along the axis of revolution of the cylindrical body.

The container 17 comprises an intermediate portion 12 arranged between said first and second ends 20a, 20b suitable to allow a correct grip of the dispenser 1 and configured to allow the glue to come out.

The dispenser 11 allows the glue to come out thanks to a variation, in particular a reduction, of the volume V of the housing compartment 18. The volume reduction pushes the glue present inside the housing compartment 18 out of of the main opening 24.

Going into further detail, it is possible to reduce the internal volume V thanks to a compression of the container 17 by means of the application of a thrust force on the intermediate portion 12.

The container 17, in the embodiment described above, has an elastic structure which allows the latter to deform, at least in correspondence with the intermediate portion 12, during the compression phase and subsequently to return to the starting dimensions once the force has been removed. thrust.

As can be seen in Figure 1, the dispenser 11 comprises a dispenser 37 arranged in correspondence with the main opening 24. The dispenser 37 emerges from the container parallel to the direction of extension 19 of the latter and has an elongated substantially cylindrical shape, in particular a tapered conical shape away from the housing compartment 18. The metering device 37 has a first end 37a arranged in correspondence with the main opening 24 and a second end 37b opposite the first end 37a with respect to the metering device 37 itself. The metering unit comprises a through cavity 38 which places the main opening 24 in fluid communication with the external environment. In particular, the through cavity extends through the metering unit along the prevailing development direction 19 of the container 17. The through cavity 38 comprises a first opening 38a in fluid communication with said main opening 24 and arranged on the first end 37a of the metering unit 37. The first opening 38a is in fluid communication with the main opening and has a passage section substantially equal to the passage section of the latter. The through cavity 38 also comprises a second opening 38b substantially arranged on the second end 37b of the metering device 37. The second opening 38b is in fluid communication with the first opening 38a and consequently with the main opening 24. The second opening 38b has a passage section lower than the passage section of the first opening 38a. The narrowing of the through cavity, according to an outgoing direction of the glue from the jacket 32, allows the dispenser 37 to increase the sensitivity of dispensing the predetermined quantity of glue 6 and also to increase the precision of application on the hair.

A second embodiment provides a dispenser 11 comprising a container 17 having a substantially elongated shape along an extension direction 19. In particular, the container 17 has, in a non-limiting way, a tubular shape which defines inside it a housing compartment 18 having a predetermined volume V. The container 17 has a first and a second ends 20a, 20b opposite each other and from which respectively an abutment portion 21a and a thrust portion 21b extend. These portions extend transversely, in particular orthogonally, with respect to the direction of extension of the container 17 itself and having an inward direction with respect to the housing compartment 18. In fact, the abutment portion, the thrust portion and the internal surface of the tube delimiting the compartment housing 18 of the container 17, thus constituting the volume V.

By detailing the structure of the housing compartment 18 it is possible to observe that the latter has a substantially cylindrical shape.

Going into further detail, the container 17 comprises a first and a second element 22a, 22b mutually engaged with each other and movable with respect to each other. Said first and second elements 22a, 22b therefore define the housing compartment 18 in an engaged condition.

The first and second elements 22a, 22b have respective engagement portions 23 which constrain the two elements and also allow the relative movement of the two.

In particular, the first element 22a comprises a first engagement portion 23a which is connected to a second engagement portion 23b of the second element 22b. The first and second engagement portions 23a, 23b comprise, in a non-limiting way, respectively, a tapping and a threaded hole adapted to receive the tapping of the first element 22a (or vice versa). In fact, the engagement portion 23 defines between the first and the second element a movable coupling / constraint which allows a substantial relative rotation between the two elements.

The rotation of at least one of said elements allows to perform relative movements between the two elements along the direction of extension 19 of the container 17, in particular to perform a series of axial movements along said direction of extension 19.

The relative axial displacement between the two elements allows to vary the internal volume V of the housing compartment 18, characterized by a relative approach between the first and second ends 20a, 20b, in particular an approach along the extension direction 19 of the container 17 of the abutment portion 21 a to the thrust portion 21 b.

The container 17 comprises, in correspondence with at least one end, in particular in correspondence with the first end 20a, a main opening 24 which places the housing compartment 18 in fluid communication with the external environment and which it allows the dispensing of the predetermined quantity of glue 6 useful for the connection of artificial hair.

More specifically, the main opening 24 is arranged on the stop portion 21a of the container 17 and extends through the latter so as to define a through opening, in particular extending parallel to the direction of extension 19 of the container 17 The accompanying figures show a preferential shape of the main opening 24 which has a substantially circular shape arranged concentrically with respect to the direction of extension 19 of the container 17 and which extends along the latter.

The container 17 also comprises a maneuvering portion 25 configured to allow the relative movement of the first and second elements with consequent reduction of the volume V of the housing compartment 18. As previously mentioned, the reduction of the volume of the housing compartment 18 allows the exit of the glue from the main opening 24. In more detail, the maneuvering portion 24 allows the first and second elements 22a, 22b to be brought into relative rotation with consequent relative axial sliding between the two.

As can be seen from Figure 2, the maneuvering portion 25 is arranged, in a non-limiting way, on said first element 22a (alternatively it is possible to arrange said maneuver portion on the second element 22b) and is constituted by a portion emerging radially from the latter in order to essentially create a handle. In particular, as it is possible to observe from the accompanying drawings, the maneuvering portion 25 substantially comprises a disc having a diameter greater than the diameter of the first and / or second element 22a, 22b. The disc has a certain thickness to ensure a certain grip on the latter and facilitate the movement of the two elements,

As can be seen from the accompanying figures, it is possible to arrange on the perimeter surface of the disc, a gripping element 26 configured to increase the friction on the maneuvering portion 25 in such a way as to facilitate the movement of the two elements. More specifically, the gripping element 26 consists of a plastic and / or rubbery material ring coupled to the outer perimeter surface of the disc (figures 2 to 6).

Alternatively, the gripping portion 26 can be represented by an external surface machining (not represented inside the accompanying figures) performed on said first and / or second element and configured to increase the friction thereof on the operating portion 25 itself. For example, the external surface machining can be a knurling or the execution of a series of grooves or a machining capable of increasing the external roughness of the maneuvering portion with respect to the unmachined surface.

As can be seen from figures 3 to 6, the container 17 can comprise a handle portion 27 which emerges transversely from said container along a prevalent development direction 28. The handle portion 27 is configured to allow a stable and safe grip of the container 17 itself and facilitate the relative movement between the first and the second movable element 22a, 22b.

In particular, the handle portion 27 is connected with said first and / or with said second element and has, in a non-limiting way, a substantially cylindrical shape.

As can be seen from the accompanying figures, the dispenser 1 can comprise at least one lighting device 29 configured to illuminate the area on which the glue is to be applied. In more detail, the luminous device, as visible in figures 4, 5 and 6, comprises a support 30 connected to the second element 22b (alternatively it is possible to connect the support 30 to the first element 22a) which allows to couple the lighting device 29 itself to the container. The support 30 is configured to support the luminous device itself and allow the latter to move along the extension direction 19 of the container 17 and / or rotate around the latter and / or vary its inclination with respect to the direction of extension 19 of the container 17.

Going into further detail, the lighting device 29 can comprise a laser light and / or an LED and / or the like.

Again with regard to the second embodiment of the dispenser 11, the latter also comprises a cartridge 31 arranged inside the housing compartment 18 and which constitutes the element for containing the glue. The cartridge 3 1 has, in a non-limiting way, an elongated substantially cylindrical shape extending along a prevalent development direction 3 le. The container also comprises a jacket 32 defining inside the cartridge 31 itself a predetermined volume suitable for containing the predetermined quantity of glue 6. In particular, the cartridge 31 has a first and a second ends 3 la, 3 lb and, on at least one of these, the cartridge 31 has a passage opening 34 which allows the glue to come out of the jacket 32.

To allow the glue to come out, the cartridge 31 comprises a piston 33 substantially counter-shaped to the jacket 32 and arranged inside the latter. The piston is mobile by sliding inside the jacket, in particular the piston 33 moves along the prevailing development direction 3 l and the cartridge 31. More specifically, the glue is arranged inside the jacket 32, in detail interposed between the passage opening 34 and the piston 33.

The movement of the piston 33 along the prevailing development direction 3 le of the cartridge 3 le towards the passage opening 34 pushes the glue through the latter.

As can be seen from the sectional view of figure 6, it is possible to apply on the outer perimeter surface of the piston 33 at least one sealing element 35, such as a gasket, designed to prevent glue from leaking through the outer perimeter surface of the piston 33 and guarantee a ™ optimal thrust of the glue out of the jacket 32 through said passage opening 34.

As can be seen from figures 5 and 6, the cartridge 31 also comprises a thrust element 36 connected to the piston 33 and emerging from one end of the cartridge, in particular from the opposite end on which the opening is arranged passage 34. The thrust element 36 emerges from the cartridge 31 along the prevailing development direction 3 le of the cartridge 31 itself.

Analyzing the condition of engagement between the container 17 and the cartridge 31 (Figure 6) it is possible to observe that the prevailing development direction 3 le of the latter is substantially parallel to the extension direction 19 of the container 17; in particular these latter directions are substantially coincident.

Again by analyzing the condition of engagement between the container 17 and the cartridge, it is possible to observe that the end of the cartridge comprising the passage opening 34 is in contact with the stop portion 21a of the first element 22a, while the thrust 36, in particular the terminal portion of the thrust element 36, is in contact with the thrust portion 21b of the second element 22b.

In more detail, it is possible to observe that, in the engaged condition, the passage opening 34 of the cartridge 31 is located in correspondence with the main opening of the container 17. As previously mentioned, the activation of the maneuvering portion 25 allows to bring the abutment portions of the container 17 closer together. In this way, the abutment portion acts as a stop for the cartridge 31 while the thrust portion moves the thrust element 36. The movement of the thrust element causes the sliding of the piston inside the jacket 32 with consequent leakage of the glue from said passage opening.

In fact, the volume variation of the housing compartment 18, in particular the volume reduction, allows the glue to come out of said passage opening which, being arranged in correspondence with the main opening 24, allows the glue to come out of this passage. € ™ last.

Also with regard to the second embodiment, the cartridge 31 can comprise a metering unit 37 arranged in correspondence with the passage opening 34. The metering unit 37 emerges from the cartridge 31 parallel to the direction of extension 3 le of the latter and presents an elongated substantially cylindrical shape, in particular a tapered conical shape away from the housing compartment 18. The metering device 37 has a first end 37a arranged in correspondence with the passage opening 34 and a second end 37b opposite the first end 37a with respect to the dispenser 37 itself. The metering device 37 comprises a through cavity 38 which places the passage opening 34 in fluid communication with the external environment. In particular, the through cavity 38 extends through the metering unit along the prevailing development direction 19 of the container 17. The through cavity 38 comprises a first opening 38a in fluid communication with said passage opening 34 and arranged on the first end 37a of the metering unit 37. The first opening 38a is in fluid communication with the passage opening 34 and has a passage section substantially equal to the passage section of the latter. The through cavity 38 also comprises a second opening 38b substantially arranged on the second end 37b of the metering device 37. The second opening 38b is in fluid communication with the first opening 38a and consequently with the passage opening 34. The second opening 38b it has a lower passage section than the passage section of the first opening 38a. The narrowing of the through cavity, according to an outgoing direction of the glue from the jacket 32, allows the dispenser 37 to increase the sensitivity of dispensing the predetermined quantity of glue 6 and also to increase the precision of application on the hair.

As can be seen in figures 7 and 8, the number 39 indicates a dispenser configured to carry a plurality of hair 40 and to allow the release of the latter in a condition of extraction which is characterized by the application of a force 40 to free the hair from the dispenser itself.

In greater detail, the dispenser 39 comprises a first and a second gripping portion 41, 42 engaged together. The plurality of hairs 40 is interposed between said first and second gripping portions 41, 42 which are configured to exert a closing force on the hair 40.

The first and second gripping portions 41, 42 have at their respective faces facing each other a plurality of protruding elements 69 capable of interfering with the hair interposed between the gripping portions themselves. In a preferential embodiment, the first and second gripping portions 41, 42 are both hooked velcro strips. By placing two velcro strips of the same nature (hooks) facing each other to close the plurality of hair 40, it is possible to trap the hair between the emerging elements without creating an excessive closing force which could ruin the hair during the extraction phase.

Alternatively, simple strips of fabric can be used instead of Velcro strips.

The dispenser 39 further comprises a locking element 70 configured to couple, for example, said first and second gripping portions 41, 42 and to allow, through the emerging elements 69, the desired sealing of the plurality of hair 40.

In a preferential non-limiting form, the locking element 70 comprises a sewing working at least on the edge from which the plurality of hair 40 emerges.

The dispenser can also comprise a covering element 71 (figure 9) disposed externally to said first and / or second gripping portion 41, 42. The covering element 71 being configured to at least partially cover said first and / or second portion grip 41, 42. The covering element includes, but is not limited to, a strip of fabric.

The longitudinal ends are firmly coupled (for example they are sewn) together by means of the locking element 70.

Furthermore, the seam (or the locking element) could involve exclusively the longitudinal edges of the covering element 71 and not the gripping portions 41, 42.

As can be seen from figures 7 and 8, the dispenser 39 comprises a support structure 43 suitable for engaging said first and / or second gripping portion 41, 42 and allowing the hair, engaged inside the gripping portions, to arrange itself in a condition of extension which facilitates the grip of the same.

By detailing the support structure 43, it is possible to say that the latter comprises a support base 44 and at least a frame 45. The support base 44 is, in a non-limiting way, a plate configured to provide a stable support. of frame 45.

As regards the frame 45, the latter has a lower end 45a connected to the support base 44 and an upper end 45b arranged on the opposite side with respect to the lower end 45a. In particular, the frame 45 extends transversely, in particular orthogonally, with respect to the base 44 thus defining a distance between the upper end 45b of the frame 45 and the support base 44.

The upper end 45b engages the first and / or second grip portion 41, 42 bringing the latter to a height equal to the distance between the base and the upper end 45b.

In this way the frame 45 allows the engaged hair to be arranged inside the grip portions in a condition of extension which facilitates the grip and extraction of the hair itself for the person who intends to apply the extensions. In a preferential embodiment, the frame 45 is configured to allow a variation of the distance between the upper end 45b and the support base 44, in particular to allow the arrangement of the gripping portions engaged with the upper end of the frame to arrange themselves in at least two, in particular a plurality, of different vertical positions.

More in detail, the frame 45 comprises a fixed part 46 comprising said support base and a guide 47 and a movable part 48 comprising a bearing portion 49 which engages said first and / or second gripping portion and a guide 50 adapted to abut to the guide 47 of the fixed part 46.

The movable part 48 slides relatively with respect to the fixed part along said guides. The movement of the mobile part 48 allows the hair engaged inside the gripping portions to be brought to different heights.

As can be seen from the accompanying figures, it is possible to observe that the guide 47 of the fixed part comprises, in a non-limiting way, two tubes which extend transversely, in particular orthogonally, with respect to the support base 44.

As regards the guide 50 of the mobile part 48, on the other hand, the latter comprises, but is not limited to, two tubes engaged internally to the tubes of the fixed part. The guide 50 of the mobile part being able to slide inside the guide 47 of the fixed part 46 along the development direction of the frame.

In addition to the devices mentioned above, the method for applying the extensions also provides for the use of a rubbing element 51 configured to allow a correct union between the artificial hair 40 and the natural hair. In particular, the rubbing element is used after the application of the predetermined quantity of glue 6 on the hair to allow correct penetration of the latter between the artificial and natural hair.

The rubbing member 51 comprises a sheet having a rubbing surface adapted to contact the hair and configured to slide over the latter.

The sheet can consist of at least one of the following materials: paper, plastic, synthetic or man-made fibers.

As always visible from figure 11, it is possible to arrange a plurality of sheets inside a container 52 which allows the sheets to be brought and extracted. The container 52 comprises an attachment portion configured to allow the positioning of the container 52 itself on the person performing the application of the extensions, in particular in which the attachment portion substantially comprises a cuff adapted to abut the wrist and / or on the Forearm of the person applying the extensions.

Subsequently the method for the application of the extensions is described which remains unchanged for the application of extensions made with synthetic fibers or with natural hair.

The method includes the step of preparing a plurality of artificial hair, in a non-limiting way, substantially equal to the natural hair of the person to whom the extensions are to be applied.

Each artificial hair comprises at least one free end 4 which, during the preparation phase of the plurality of hairs, is substantially aligned with the free end of every other artificial hair.

To facilitate the gripping of the artificial hair, it is possible to arrange the latter on the dispenser 39 between the first and second gripping portion 41, 42, in particular it is possible to engage the free ends 4 of the artificial hair to the first and second gripping portion .

As previously described, the dispenser 39 allows the height adjustment of the artificial hair inserted between its portions. In this way it is possible to arrange the artificial hair at an optimal height to facilitate the grip of the latter for the person who intends to apply the extensions. The method also provides for the predisposition of a predetermined number of natural hair 2 of the person to whom the extensions are to be applied. In particular, in this step said predetermined number of hair 2 of the person is grouped up to the formation of a substantial lock of hair 9.

The grouping phase essentially consists in spacing the predetermined number of hairs 2 of the person from the remaining hairs.

To keep the predetermined number of hairs of the person spaced, it is possible to use a separation element 10 around the predetermined number of hairs. The separation element 10 is arranged substantially in the vicinity of the skin and is configured to distance, at least in the vicinity of the separation element 10 itself, the predetermined number of hairs 2 from the remaining hair of the person to whom the hair is to be applied. extension.

The separation element 10 comprises a body 13 which extends substantially along a prevailing development plane and which has, in a non-limiting way, a reduced thickness.

The body 13 has a through seat 14 which allows the passage through said body of the predetermined number of hairs 2. The extension of the body 13 along the prevailing development plane allows the separation of the portion of the predetermined number of hairs 2 near the passing seat 14 from the remaining hair.

As can be seen from figures 9 and 10, the separation element 10 has a discoidal shape having a very reduced thickness with respect to the radial extension of the disc.

Alternatively, it is possible to assign to the separation element 10 a polyhedral shape having a significantly smaller dimension than the other two.

The dimensions and the material of the separation element 10 ensure that the latter has a very low weight so as to allow the lock of hair 9, passing through the through seat 14, to support the separation element 10 and keep it in the predetermined position.

In particular, the separation element 10, as shown in figure 9, is arranged substantially in proximity to the hairline which represents the area of application of the extensions.

Once the preparation of the artificial hair has been carried out on the dispenser 39 and the grouping of the predetermined number of hairs 2, it is possible to take from the dispenser 39 a lock 3 formed by a plurality of artificial hairs 3a which are at this point completely detached from each other. and exclusively held by the hand of the professional before application. The lock 3 has an end portion 5 made up of the free ends 4 of the hair.

Subsequently the lock 3, in particular the end portion 5 of the lock 3, is placed on an attachment portion 7 of the predetermined number of hairs 2, which is located in proximity to the attachment of the latter. The arrangement of the end portion 5 of the lock 3 on the attachment portion 7 of the predetermined number of hairs 2 defines an interposition zone 8.

Since the hair to be applied is not bound at the respective extremity, it is possible, on the one hand, to take the desired quantity, on the other hand, to allow an intimate mixing with the subject's 'live' hair in order to drastically improve the aesthetic result and their coupling tightness.

Once the lock has been connected with the predetermined number of hairs, it is possible to fix it by dispensing a predetermined amount of glue 6 on the interposition area 8.

The glue is placed with the dispenser 11 previously described (step schematized in figure 10).

The glue application phase takes place without adding thermal energy to the latter. More specifically, the glue present inside the dispenser is in the liquid state, in particular the state of the glue allows at least the application phase to be carried out at a constant and ambient temperature.

The glue, as mentioned, during the application phase is in a liquid state and therefore capable of penetrating inside the interposition zone 8 and contacting both the predetermined number of hairs 2 and the lock 3.

After the application phase of the predetermined quantity of glue 6, it is possible to carry out a further processing phase configured to favor the contact of the predetermined quantity of glue 6 with the predetermined number of hairs 2 and the lock 3 and also allow a perfect synergy between this. € ™ last.

The processing step in particular basically consists in gripping the interposition zone 8 of the hair and imparting to the latter a pressure on the interposition zone 8 itself. The pressure exerted allows the glue to expand and penetrate the entire interposition area 8.

The processing phase can also comprise a movement phase of the interposition zone 8 itself. More simply, the movement of the interposition zone 8 basically consists in performing a back and forth rubbing which also allows the hair to mix intimately and eventually to intertwine.

In this way it is possible to minimize the thickness of glue visible in the interposition area 8 and therefore to improve the aesthetic appearance of the extension. In particular, it is possible to minimize the total thickness of the extension attachment.

It is possible to quantify this thickness through the ratio between the final thickness of the extensìon, given by the thickness of the interposition zone 8 and the predetermined quantity of glue 6, and the thickness of the interposition zone 8 alone.

Following the application phase and possibly the rubbing phase, the glue rapidly passes from the liquid state to the solid state so as to allow a stable connection between the lock and the predetermined number of hairs. More specifically, the solidification of the glue traps the strand on the hair allowing you to essentially create a single body.

The solidification step essentially comprises a polymerization process, in particular a step-by-step polymerization, of the glue.

The glue used is by way of example and not substantially a chemical compound comprising a cyanoacrylate of ethylene and methacrylate. In particular, it is possible to quantify at a percentage level the presence of the two compounds inside the glue.

Quantitatively, the glue comprises at least 85% of ethylene cyanoacrylate, more particularly comprising a quantity of ethylene cyanoacrylate higher than 90%, even more particularly comprising a quantity of ethylene cyanoacrylate higher than 95%. As far as methacrylate is concerned, the glue comprises at least 0.1% of methacrylate, more particularly comprising a quantity of methacrylate higher than 5%, even more particularly comprising a quantity of methacrylate higher than 9%.

Alternatively, it is possible to use different types of glue provided they are configured to ensure correct cohesion of the hair and allow lasting cohesion over time.

The method described above has numerous advantages. In particular, the cohesion by means of a liquid glue without the contribution of thermal energy allows to keep the hair healthy, without inducing any damage to it. In addition to this, the fact of being able to take a predetermined number of hairs from the dispenser 39 allows the person who intends to apply the extensions greater flexibility and freedom during the creation of the hairstyle. In fact, the person who performs the hairstyle is given the opportunity to choose the size and thickness of the lock to be installed. More precisely, the hairdresser chooses the number of hairs to install without having to adapt to the application of pre-shaped extensions. By doing so, it is possible to run applications even in particularly visible areas. The method described also allows to create an interposition zone 8 having a very reduced thickness, which allows the extensions to have an excellent aesthetic impact.

LEGEND

2 Fixed number of hairs

3 Lock

3a Plurality of hair

Free ends (of the plurality of hairs)

5 portions of ends (of the lock)

Fixed amount of glue

Portion of attachment (of the predetermined number of hairs) Interposition area

lock of hair

10 Separation element

1 Dispenser

2 Intermediate portion

3 Body of the separating element

4 Through seat of the separating body

7 Container

8 Storage compartment

9 Direction of extension of the container

0a First end of the container

0b Second end of the container

1st Portion of measure

1b Thrust portion

2nd First element

2b Second element

3 portions of commitment

23 a First portion of commitment of the first element

23b Second engagement portion of the second element

24 Main opening

25 Portion of maneuver

26 Gripping element

27 Portion of handle

8 Main development direction of the grip portion 29 Lighting device

30 Lighting fixture holder

1 Cartridge

1 a First end of the cartridge

1 b Second end of the cartridge

1 a Primary direction of development of the cartridge

2 Shirt

3 Piston

4 Passage opening

5 Sealing element

6 Push element

7 Doser

7a First end

7b Second end

8 Through cavity

8 a First opening

8b Second opening

9 Dispenser

40 Plurality of hair

41 First sealing portion

42 Second sealing portion

43 Support structure

44 Base

45 Frame

45a Lower end of the frame

5b Upper end of the frame

46 Fixed part

7 Guide of the fixed part

8 Moving part

9 Carrying portion

0 Guide of the moving part

1 Rubbing element

2 Container of the rubbing element 9 Emerging elements

0 Locking element

1 Cover element

Claims (10)

CLAIMS 1. Method for applying extensions including the following steps: > arrange at least a predetermined number of hairs (2) belonging to a person to whom the extensions are to be applied; > arrange at least one lock (3) comprising a plurality of hair which have a free end (4) in correspondence with an end portion (5) of the lock (3); > prepare at least a predetermined quantity of glue (6) suitable for connecting the lock (3) with the predetermined number of hairs (2); the method for applying extensions, also including the following steps: > positioning the end portion (5) of the lock (3) in correspondence with an attachment portion (7) of the predetermined number of hairs (2) so as to form a reciprocal interposition zone (8); > apply the predetermined quantity of glue (6) on the interposition area (8) to allow the connection between the predetermined number of hairs (2) and the lock (3). 2. Method according to claim 1, in which the step of preparing the predetermined quantity of glue (6) and the subsequent phase of its application takes place while maintaining the glue substantially at a constant temperature, in which the phase of applying the predetermined quantity of glue (6) takes place without adding thermal energy to the latter. 3. Method according to any one of the preceding claims, in which said predetermined quantity of glue (6), during the phase of its application on the predetermined number of hairs (2) and / or on the lock (3), is in the liquid state , and in which after the application phase of the predetermined quantity of glue (6), the latter passes from the liquid state to the solid state in order to allow the connection between the predetermined number of hairs (2) and the lock (3) , and in which after the application phase of the predetermined quantity of glue (6), the latter undergoes a polymerization process, in particular a polymerization process in stages, which allows the condensation of the glue and the passage of this last from the liquid state to the solid state. 4. Method according to any one of the preceding claims, wherein the predetermined quantity of glue (6) is a chemical compound comprises at least 85% ethylene cyanoacrylate, more particularly comprising an amount of ethylene cyanoacrylate higher than 90% , even more particularly comprising a quantity of ethylene cyanoacrylate higher than 95%, and in which the predetermined quantity of glue is a chemical compound comprises at least 0.1% of methacrylate, more particularly comprising a quantity of methacrylate higher than 5% , even more particularly comprising a quantity of methacrylate higher than 9%. 5. Method according to any one of the preceding claims, in which the step of preparing the predetermined number of hairs (2) comprises the sub-step of grouping the latter so as to substantially form a lock of hair (9), and in which the phase of grouping the predetermined number of hairs (2) includes the sub-phase of spacing the lock of hair (9), formed by the predetermined number of hairs (2), from the remaining hair of the person to whom the extensions are to be applied, the phase of spacing comprises the sub-phase of positioning at least one separation element (10) around the lock of hair (9) composed of the predetermined number of hairs (2), said separation element (10) being arranged substantially in proximity to the skin and being configured to space, at least near the separation element (10), the predetermined number of hairs (2) from the remaining hair of the person to whom the extensions are to be applied, and in which the attachment portion (7) of the predetermined number of hairs (2) is arranged substantially in proximity to the attachment of the latter on the skin. 6. Method according to any one of the preceding claims, in which the step of preparing the predetermined quantity of glue (6) comprises the sub-phase of preparing a dispenser (11) configured to allow the containment and dispensing of said predetermined quantity of glue (2) on the interposition area (8), and in which said dispenser (11) comprises at least one container (17) which extends along an extension direction (19) and defines inside it a housing compartment (18) , said container (17) comprising at least one main opening (24) which places said housing compartment (18) in communication with the external environment, said container (17) being configured to contain and deliver the predetermined quantity of glue (6) from the main opening (24), and in which said container (17) comprises at least a first element (22a) and at least a second element (22b) engaged together to form said housing compartment (18) and one mobile with respect to the other, said dispenser (11) comprising at least a maneuvering portion (25) configured to vary the relative position between the first and second element (22a, 22b) and consequently the internal volume defined by the housing compartment ( 18), said maneuvering portion (25) being configured to allow, in a dispensing condition, the reduction of the volume defined by the housing compartment (18) and consequently allow the glue to escape from said main opening (24). Method according to the preceding claim, wherein said first and second elements (22a, 22b) are movable by relative sliding along the direction of extension (19) of the container (17), said maneuvering portion (25) allowing, during the dispensing condition, a series of axial displacements of the first and / or second element along the direction of extension (19) of the container (17) itself, and in which the maneuvering portion (25), during the dispensing condition, is moves with a rotary motion around an axis of rotation substantially parallel to the direction of extension (19) of the container, and in which the maneuvering portion (25) is integral with said first or second element (22a, 22b) and in which the The axis of rotation of the maneuvering portion (25) is substantially coincident with the direction of extension (19) of the container (17). 8. Method according to claim 6 or 7, wherein said dispenser (11) comprises a cartridge (31) arranged inside the housing compartment (18) comprising a jacket (32) able to contain at least the predetermined quantity of glue (6) and a piston (33) movable inside said jacket (32), the latter comprising a passage opening (34) suitable for allowing the glue to come out of the jacket (32) itself, said piston (33) being configured to allow the volume variation, in particular the volume reduction, of the jacket (32) and allow the glue to escape from said passage opening (34), and in which the predetermined quantity of glue is contained inside the liner (32) and interposed between the passage opening (34) and the piston (33), the piston (33), during the movement phase which determines the approach of the piston (33) itself to the opening of passage (34), pushes the glue out of the opening of p tasting (34), and in which the passage opening (34) is located near, in particular at the main opening (24), and in which the glue comes out from the passage opening (34) allows the glue to come out of the main opening (24). Method according to any one of the preceding claims, in which the step of preparing the lock (3) comprises a sub-step of preparing a dispenser (39) configured to carry a plurality of hair (40) and allow the release of the latter in an extraction situation characterized by the application of a pulling force on the hair capable of freeing the latter from the dispenser (39) itself, and in which said dispenser (39) comprises a first and a second grip portion (41 , 42) facing each other, said plurality of hairs (40) being interposed between said first and second gripping portions (41, 42) which exert a closing force on the hair, in particular in which said first and second gripping portion (41, 42) have at their respective faces facing each other a plurality of protruding emerging elements (69) capable of interfering with the hair interposed between the gripping portions themselves. Method according to any one of the preceding claims, in which the phase of applying the predetermined quantity of glue (6) comprises the sub-phase of working the hair in correspondence with the interposition area (8), the hair processing phase is configured to facilitate the penetration of the glue in the predetermined number of hairs (2) and in the lock (3), and in which the phase of working the hair includes the following phases: > grasp the interposition area (8) of the hair; > apply pressure on the interposition area (8) suitable for joining the lock (3) and the predetermined number of hairs (2) and allow an expansion and penetration of the predetermined quantity of glue (6) over the entire interposition area ( 8); > move the interposition area (8) so as to allow a uniform engagement between the predetermined number of hairs (2) and the lock (3).