SK4422000A3 - Method of hair styling, in particular their extension and/or densifying, an additional hair stream and process for making thereof - Google Patents

Abstract

The suggested method of treating hair, particularly elongation and/or densification thereof is based on the principle of joining a strand (6) of real hair and a strand (1) of additional hair by making use of a heat shrinkable plastic tube (7). A solid compact body (3) of a moldable, heat resistant material is formed on each strand (1) of additional hair. The strand (1) of additional hair to be connected is then inserted by means of the compact body (3) into hair of the strand (6) of real hair and the plastic tube (7) is moved in such a manner as to encompassing the compact body (3) and overlapping at both ends thereof, whereby after heating said plastic tube (7) jacket shrinks and pulls in all the hair projecting over both ends of the tube (7). Prior pulling the heat shrinkable plastic tube (7) over the solid compact body (3) the surface of the latter is roughed for retaining the real hair pressed against said compact body (3) surface during shrinkage of the plastic tube (7), in the jacket of which, tightly encircling the compact body (3) and copying shape and roughed surface thereof, apexes of this roughed surface are simultaneously pressed in, to thereby fixing the joining plastic tube in the position. In order to form the roughed surface said compact body is put just before complete solidification into a loose grainy material wherein grains (4) have strong sharp edges and subsequently grains (4) adhering to the outer surface thereof are pressed mechanically therein and simultaneously the solidifying body is shaped to a cylindrical form and let to solidify. In the present invention there is also claimed the strand of additional hair for use in the above-described hair treatment method as well as process for producing thereof.

Description

A method of conditioning hair, in particular, lengthening and / or thickening thereof, and a strand of additional hair, and a method for producing the same.

Technical field

The invention relates to a method for treating hair, in particular to lengthening and / or thickening thereof, which is based on the principle of joining the strand of its own hair and the strand of additional hair by means of a heat-shrinkable plastic tube. On each of the strands of accessory hair, a solid body is formed of a ductile, heat-resistant material, which then constitutes its thickened portion and in which the accessory hair is trapped. The attached strand of additional hair is inserted into the strand of its own hair by the end so formed, and the plastic tube is moved along the hair so that it surrounds the fixed body and extends beyond both ends. After heating and subsequent shrinking of the plastic tube, its sheath is shaped according to the shape of a solid body that tightly embraces and at the same time pulls off all hair that protrudes at both ends. The invention also relates to a strand of additional hair and to a process for its manufacture.

BACKGROUND OF THE INVENTION

For cosmetic but also medical purposes are used various methods of lengthening or thickening naturally grown hair. Systems are known in which custom hair is bonded to artificial or real hair using a variety of bonding, bonding or knotting techniques.

The method of hair extension according to British patent application no. GB 2,271,057, which is, however, relatively laborious and complex. Here, the additional hair is folded and inserted into an auxiliary plastic tube, which is shrinked by heat and the whole is further inserted together with the strand of its own hair into another heat-shrinkable tube.

U.S. Pat. U.S. Pat. No. 4,934,387 describes a method of bonding own and additional hair by gluing and preparing a colored thermoplastic adhesive, in particular dyeing the adhesive with colored powders. This method is also quite laborious and not suitable for normal use.

Patent application PCT / EP95 / 04396 discloses a hair extension process in which a knot is formed on a strand of its own hair, a strand of synthetic hair is attached, at the end of which is a solid body of heat-resistant mass representing the strand reinforcement and the place is passed through a heat shrinkable plastic tube. It follows the shape of the solid body and simultaneously pulls the two strands together and positively secures the joint. Creating knots on your own hair, and therefore on the client's head, is lengthy and, of course, cannot be prepared in advance. Although this connection can be released after re-heating the die plastic tube, it has the disadvantage that very often the knot is tightened so that its release is difficult and laborious and sometimes there is no other way to cut it off. The disadvantage of this joint is also its relatively low tensile strength.

Another type of hair bonding closest to the present invention is described in U.S. Pat. U.S. Pat. No. 5,107,867. This is an adhesive bond where a body of thermally stable mass is formed on the strand of additional hair. Once hardened, a solid body is also formed on which a layer of thermosetting adhesive is applied. A heat-shrinkable plastic tube is slipped onto the strand of its own hair and then the glued end of the strand of additional hair is inserted. The joint is passed through a shape memory plastic tube. After application of heat, the plastic tube shrinks and pulls the two strands together; by copying at the same time the shape of the rigid body forming the thickened part of the hair strand, it also secures the joint against displacement. This positioning effect is further enhanced by melting the adhesive simultaneously with heat and supersaturating the strand of the hairs of its own, and subsequently curing the adhesive layer. After re-heating the plastic tube, the joint can be loosened, the cured adhesive layer, for example, breaks out and the additional hair can be removed. The disadvantage of this method is that adhesive residues adhere to the hair after removal of the additional hair, which must be removed with suitable solvents or cut the hair.

It is an object of the present invention to provide a hair treatment in which the bond of the hair itself and the additional hair is reliable, firm and time-stable, and its formation is fast and efficient. It is a further object of the invention to make the hair connection neat a

-3 the smallest and keep your own hair intact even in the event of a long-lasting connection with additional hair.

SUMMARY OF THE INVENTION

Said object of the invention can be achieved by a method of hair treatment, in particular of lengthening and / or thickening, which is characterized in that, prior to passing the heat-shrinkable plastic tube, the solid body is provided with a roughening on its surface which retains its own hair pressed against the solid body When shrinking the plastic tube, the tops of this roughening are simultaneously pressed into the shell, which not only copies the shape of the solid body but also the surface roughening of the solid body.

The rigid body retains its shape and consistency even during heating, so that the joint is releasable when the lance is re-heated, but the hair itself remains clean and undamaged. In this connection, the connection of the strands has a high tensile strength compared to other known methods. This is also due to the fact that the solid body has not only an enlarged contact surface during its surface roughening, but the shrink tube, in its shrinkage, copies, along with the basic shape of the solid body, also the roughening projections on which the tube sheath is retained. The hair is then firmly attached between the projections of the roughening and the adjacent sheath of the shrinkable tube. All this makes it possible to create a stronger joint with very good positional locking. The joint area is relatively small and so does not disturb its appearance, the additional hair coincides with its own. Importantly, this treatment is very gentle on your own hair and can also be used on hair bleached and damaged. There is no need to unravel the various knots, and the hair styling time is significantly reduced.

The rigid body may be formed by first providing each of the strands of accessory hair with a body of heat-resistant bonding material in the ductile state in the region of the end to be attached. The strand of additional hair adhered to both sides of the envisaged joining region, upon application of the heat-resistant tie, curls between the attachment points, thereby mixing the hair with the joining mass while compacting the hair in the strand and thereby its strand.

-4starting in this area. The solid is then brought into contact with the particulate granular material prior to complete solidification, where the solid grains have edges at their tips which may be preferably sharp, and then the grains adhered to at least a portion of its outer surface are mechanically pressed into it and simultaneously it forms the solidifying body into a cylindrical shape.

The use of ductile plastic to form the body is very quick and quick. In addition, it allows the strands of additional hair to be twisted, thereby mixing the hair with the fastener while compacting and thereby thinning the strand in this area. The thinner the strand, the more neat it is to connect it to its own hair. The use of plastic also makes it possible to produce a readily and easily roughened surface on the surface of the solid body by means of solid grains which can be pushed into the body so that it protrudes only through the tips of its sharp edges and virtually no further thickening of the body and thus unwanted coarsening of the attached hair strand.

The grains may be of corundum or glass of 50 to 220 µm, preferably 120 to 180 µm. The sharp edges of the grains significantly contribute to the securing of the joint.

The solid body may also be formed by a metal tube which is threaded onto the strand of additional hair in the region of the attached end and then externally applied thereto by pressure from several sides, thereby creating point-like depressions in its jacket over the height of the metal tube above mutually offset, extending into the inner space of the pressed metal tube up to the hair.

The formation of a solid body with a metal tube provides the advantage of making the joint even easier and faster, and pressing the tube with special pliers is quick and efficient. The tube may preferably be of a tin-plated copper plate with a length of 4 to 10 mm and a starting diameter of 1.3 to 3.5 mm.

In both embodiments of the solid body, the additional hair projecting over the end of the solid body is cut off before being inserted between the hair itself, thereby forming a pre-formed strand of additional hair with a fixed insertion end.

In an alternative embodiment, the plastic tube may be provided with roughening on at least a portion of its inner surface. This roughening of its inner surface in combination with the roughening of the surface of the rigid body of the strand of additional hair contributes to increasing the bond strength of the own hair and the additional hair.

The invention also relates to a strand of additional hair intended to be joined to a strand of own hair for lengthening and / or thickening. It is provided with a solid body of ductile, heat-resistant material in the region of its attached end, in which the additional hair is fastened. The solid body is roughened on its surface. The roughening is formed by solid grains anchored in the surface of the solid body, the tips of which have edges which may advantageously be sharp. They may be abrasive grains. The strand can be made in advance, which greatly speeds up the work of the hairdresser and the client's time. It can also be sold as a stand-alone product.

The invention also relates to two separate methods of making strands of additional hair intended to be bonded to the strands of their own hair for lengthening and / or thickening, in which a solid body is subsequently formed on each of them from a ductile, heat-resistant material which then constitutes its reinforced the part where the additional hair is caught.

According to a first possibility, a heat-resistant bonding compound in the ductile state is first applied to the strand of additional hair in the region of the bonded end, the strand of additional hair adhered to both sides of the envisaged bonding area. by the jointing compound, while simultaneously compacting the hair in the strand and thereby thinning it in this area. The end, provided with the heat-resistant mass, is contacted with the particulate granular material prior to its solidification, where the solid grains have edges at their tips, and then the solid grains adhered to the outer surface of the heat-resistant mass are pressed into it. the material is formed into a solid body.

-6 Alternatively, the rigid body is formed by a metal tube which is threaded onto a strand of additional hair in the region of the end to be attached, and then externally applied by pressure from several sides such that the metal tube is pushed in and its points are formed by point-like depressions, and over the height of this tube overlapping each other, which extend into the interior of the pressed metal tube up between the hair.

BRIEF DESCRIPTION OF THE DRAWINGS

The invention will be explained in more detail with reference to the drawings in conjunction with the following description of specific embodiments. 1 to 4 show the preparation of strands of additional hair for joining them with their own hair. 1 shows a strand of additional hair which is provided in the region of the end to be attached with a heat-resistant jointing material in a ductile state which, after partial solidification, forms a solid body. Figure 2 shows how the strand curls in the region of the end to be attached after applying the heat-resistant fastener, thereby mixing the hair with the fastener while compacting the hair and thereby thinning the strand in this region. Figure 3 shows another phase of the preparation of the strand of additional hair, in which the hair protruding over the end of the fixed body is cut off. Fig. 4 shows a strand of additional hair with a solid body after insertion before it is fully solidified into a loose granular material with grains adhered to its outer surface which are mechanically pressed into it and at the same time the solid body is formed. Figures 5 to 7 show successively the process of joining one's own hair with a strand of additional hair. In Figure 5, a heat-shrinkable shape memory tube is pushed onto the strand of its own hair close to the head. In Figure 6, a solid strand of additional hair is inserted into the tube between the hair itself. Finally, in Figure 7 it is shown how, after heating and subsequent shrinking of the spin tube, its sheath presses its own hair against the roughened outer surface of the solid body, thereby securing the joint against mutual displacement. By way of illustration, the joint is illustrated in an enlarged embodiment, in fact a subtle, neat and thin joint.

In Figures 8, 9 and 10, alternative embodiments of a solid strand of additional hair are then shown, wherein the strand is formed by a metal tube, which is punctually pressed inwardly between the hair at several points. Fig. 8 shows a metal tube with an inserted strand of additional hair before being pushed; Fig. 9 after being pushed; and Fig. 10 shows a detail of the metal tube after being pushed and roughened with protruding protrusions.

DETAILED DESCRIPTION OF THE INVENTION

In the method of thickening and / or lengthening the hair, strands of additional hair, artificial or natural, are first prepared. According to the basic variant, each strand 1 of additional hair is attached to both sides of the envisaged bonded area 2 and a heat-stable adhesive, for example epoxy resin, heat-resistant up to 200 ° C is applied in the required amount to the required amount. 1, in which the adhesive is shown schematically as a rectangle). After the application of the heat-resistant bonding agent (glue) and its partial setting, the strand 1 of the extra hair in the bonding area 2 between the attachment points twist (see Figure 2), mixing the hair with the bonding material while compacting the hair and thereby thinning the strand. area. A fixed body 3 is thus formed at the future joining point, which represents a local reinforcement. The hair protruding over the end of the fixed body 3 is trimmed (in FIG. 2, the cut-off location is schematically indicated by dashed lines; in FIG. 3, the strand 1 of the additional hair is shown after cutting off the overhanging hair).

The strand 1 of the additional hair is inserted into the free-flowing granular material with firm, sharp edges of the grains prior to the solidification of the solid body 3 and the grains 4 adhered to its outer surface are mechanically pressed into it, preferably by fingers. At the same time, the rigid body 3 is shaped, preferably into a cylindrical shape. The solid grains 4 are, for example, of corundum or glass of 50 to 220 µm, preferably 120 to 180 µm, and their peaks, slightly protruding when pressed, form a roughening on the surface of the solid body 3.

Alternatively, the rigid body 3 may also be formed by a metal tube 8 (Figures 8, 9 and 10) which is threaded onto the strand 1 of the additional hair (or the strand 1 of the additional hair is inserted, for example by means of shaped pliers). The metal tube 8 is made of tinned copper thin sheet and has a length of 6 mm and a starting diameter of 2.5 mm. In order to form a rigid body 3 in which a strand of accessory hair 1 is fixed and which forms its fixed insertion end, pressure is exerted externally on the tube 8, at the same time from eight sides around the metal tube 8, so that These depressions 9 form point-like depressions 9. The depressions 9 are over each other along the height of the metal pipe 8 and are offset by each other, with their peaks alternatingly interfering with each other in the inner space of the pushed pipe 8 between the hairs so fastened therein. The metal tube may also be slightly deformed when it is pushed in, thus reducing its overall diameter. The resulting solid body 3, representing a local reinforcement, is cylindrical in character and its surface is provided at least in part with a layer of solid grains 4 with sharp edges. For example, the layer may consist of abrasive dust that is wrapped on a surface provided with an adhesive.

The strands 1 of the additional hairs formed according to both the first and second alternatives are further treated in the same way as the hair extension and / or thickening process, as close as possible to the head 5 of the client at a distance of about 0.5 to 1.5 cm. a threaded, heat-shrinkable plastic tube 7 (e.g. of polyethylene) with a shape memory (see Figure 5) having a length of approximately 10 mm and an outer diameter before shrinking of approximately 2.4 mm is slid onto the strand 6 of its own hair. Its dimension must be such that it can be pulled over the fixed body 3. The inner surface of this tube 7 can be at least partially roughened (not shown), for example by mechanical damage to the smooth surface, which increases the gripping effect. A fixed strand 3 with strand and additional hair is then inserted between the hair to be bonded by the strand 6 of its own hair so that the strand hair at least partially overlaps the solid strand 3 (Figure 6). The die tube 7 is then displaced to surround a rigid body 3 over which it extends by approximately 2 mm at both ends (Figure 6). After heating to a temperature of about 120 to 150 ° C and subsequent shrinkage of the plastic tube 7 (approximately half the diameter), it captures the irregularly roughened surface of the solid

The body 3 under pressure of the shrinkable plastic tube sheath 7 presses the hair pressed against the surface of the solid body 3 and at the same time the grain tips with their sharp edges are pushed into the plastic tube sheath 7, sufficiently securing the joint of the own and the extra hair against mutual displacement. hair length. When the rigid body 3 is wrapped around the shrinked plastic tube 7, all the hair protruding at both ends thereof is drawn off.

The joints of the actual and additional hairs of the present invention are dimensionally small, neat, and at the same time rigid, with very good fusion. It is important that the hair does not adhere to the joint, it is gentle on it and remains undisturbed even if the connection lasts for several months. There is no need for time-consuming untangling of knots on their own hair, which, due to the higher temperatures used up to now (up to 220 ° C), were in a deteriorated state after the joint was released. The new method is therefore gentle, faster and less expensive to own hair, the joints are very strong. Since the hair itself blends in perfectly with the additional hair, the known and undesirable effect of the visibly bifurcated strands does not appear.

Industrial usability

The hair treatment method of the present invention is widely applicable to hair lengthening or thickening, and is also suitable for discolored and otherwise chemically damaged hair.

Claims (10)

PATENT CLAIMS Method of hair treatment, in particular of lengthening and / or thickening, based on the principle of joining a strand (6) of its own hair and a strand (1) of additional hair by means of a press-through, heat-shrinkable plastic tube (7), on each strand (1) the additional hair is formed by a rigid body (3) of a ductile, heat-resistant material, which then constitutes the thickened portion thereof, in which the additional hair is retained, and subsequently the attached strand (1) of the additional hair is inserted into the hair of the strand (6) and the plastic tube (7) is displaced so that it surrounds the fixed body (3) and extends over both ends thereof, after heating and shrinking the die (7), its casing is shaped according to the shape of the fixed body (3) which tightly embraces and at the same time pulls off all hair that protrudes at both ends, characterized by By drawing the heat-shrinkable plastic tube (7), the solid body (3) is provided with a roughening on its surface which captures its own hair pressed against the surface of the solid body (3) when the plastic tube (7) shrinks into its sheath. at the same time the tops of this roughening are pressed. Hair treatment method according to claim 1, characterized in that in order to form a rigid body (3), each of the strands (1) of the additional hair is provided in the region (2) of the connected end with a body of heat-resistant binding material in the ductile state. 1) the additional hair adhered to both sides of the presumed bonding area (2) is twisted after application of the heat-resistant bonding material between the attachment points, thereby mixing the hair with the bonding material while compacting the hair in the strand (1) and thereby thinning it , the solid is then brought into contact with the granular material prior to complete solidification, wherein the solid grains (4) have edges at their tips, and then the solid grains (4) adhered to its outer surface are pressed into it while solidifying telesko dotvarováva. Hair treatment method according to claim 2, characterized in that the solid grains (4), the edges of which are sharp, are of corundum or glass with a size of 50 to 220 µm, -11výhodne 120 and 180 pm, and a bonding material consisting of epoxy resin, heat-resistant up to 200 ^e C Hair treatment method according to claim 1, characterized in that the fixed body (3) is formed by means of a metal tube (8) which is threaded onto the strand (1) of the additional hair in the area (2) of the attached end and then it externally exerts pressure from several sides, thereby forming point-like depressions (9) in its jacket, over the height of this tube (8), offset from each other, which extend into the interior of the pressed metal tube (8) as far as the hair. Hair styling method according to claim 4, characterized in that the metal tube (8) is of tinned copper with a length of 4 to 10 mm and a starting diameter of 1.3 to 3.5 mm, provided with a roughening on the surface, for example coated with abrasive dust. Hair treatment method according to one of the preceding claims 1 to 5, characterized in that the die-shaped plastic tube (7) is roughened on at least a part of its inner surface. A strand of accessory hair intended to be joined with a strand (6) of its own hair for lengthening and / or thickening, which is provided in the region (2) of its attached end with a rigid body (3) of ductile, heat-resistant material in which additional hair caught, characterized in that the solid body (3) is roughened on its surface. The strand according to claim 7, characterized in that the roughening is formed by solid grains (4) anchored in the surface of the solid body (3), the tips of which have sharp edges. Method for producing a strand (1) of additional hair intended to be bonded to a strand (6) of its own hair, to extend and / or thicken it, in which a solid body (3) is formed therefrom from a ductile, heat-resistant material which represents a thickened part thereof and in which the additional hair is trapped, characterized in that the strand (1) of the additional hair -12the first, in the region of the joined end (2), the heat-resistant jointing material is applied in the ductile state, the strand (1) of the additional hair adhered to both sides of the envisaged jointing region (2) is twisted after application of the heat-resistant jointing material. the hair with the fastener is mixed while the hair is compacted in the strand (1) and thus thinning in this area, the end provided with this material, before its complete stiffening, is brought into contact with the loose grained material, where the solid grains (4) and then the solid grains (4) adhered to the outer surface of the heat-resistant mass are pressed into it and at the same time this solidifying mass is formed into a solid body (3). Method for producing a strand (1) of additional hair intended to be bonded to a strand (6) of its own hair for lengthening and / or thickening, in which a solid body (3) is formed therefrom from a malleable, heat-resistant material, which a thickened portion thereof, in which the additional hair is trapped, characterized in that the solid body (3) is formed by a metal tube (8) which is threaded onto the strand (1) of the additional hair in the area (2) of the attached end it is externally exerted by pressure from several sides in such a way that point-like recesses (9) are formed in its casing over the height of this tube (8) one above the other, which extend into each other and extend into the inner space of the pressed metal tube (8). hair.