JP3665228B2 - Permanent rod - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a permanent rod. More specifically, the rod is lightweight and excellent in workability at the time of wrapping and holding the hair and washing with water, and does not damage the hair or scalp of the customer (the subject) and also damages the hand of the operator. The present invention relates to a permanent rod that is effective for forming transverse waves and longitudinal waves that are performed in a beauty salon and barber shop that are safe and without any problems.
[0002]
[Prior art]
Conventionally, permanent waves such as horizontal waves and vertical waves have been performed in beauty salons and barber shops.
Various permanent rods are used to form a permanent wave. For example,
a. Japanese Laid-Open Patent Publication No. 57-55103 (hereinafter referred to as “A”) discloses a “permanent rod having an outer sleeve made of silicon rubber or the like on the surface of a hard tubular material such as polypropylene or nylon”. .
b. Japanese Patent Application Laid-Open No. 9-28445 (hereinafter referred to as “B”) discloses “a coiled rod for cold permanent in which a hollow cylindrical rod is formed of a thermoplastic elastomer”.
c. Japanese Utility Model Laid-Open No. 2-4502 (hereinafter referred to as C) discloses that “a shape-retaining core wire made of a plastic metal wire (aluminum or the like) is covered without being exposed by a foamed synthetic resin material having elasticity. A permanent hair curler is disclosed which has a rod shape and is formed by closely contacting the core wire and the foamed synthetic resin material.
[0003]
[Problems to be solved by the invention]
However, the conventional permanent rod has the following problems. The permanent rod of No. 1 publication is an ultra-thin wall with an outer sleeve thickness of 0.127 mm to 0.726 mm made of silicon rubber or the like, and is inserted into the outer periphery of the tubular object, so that the outer sleeve deteriorates. A gap is easily formed between the tube and the tube, and a cold wave lotion solution or the like enters the gap, and the outer sleeve is twisted or slipped, resulting in a displacement from the tube. However, it has the problem that it is difficult to make and lacks practicability.
In addition, since the outer sleeve is inserted into the tubular object, it is difficult to press-fit with the tubular object, and since the outer sleeve is thin, a uniform repulsive force cannot be returned to the wound hair, and it is difficult to form a uniform wave. Had.
[0004]
Since the curly rod for cold permanent of the gazette is formed of a thermoplastic elastomer into a hollow cylindrical shape, the center of the rod is dented during the curling operation, and the workability of the curling operation is lacking. It had the problem that.
Furthermore, since the surface is formed of only a thermoplastic elastomer, the surface is slippery and lacks the workability of the hair bundle winding work. (3), 3rd column, 14th line to 42nd line) must be formed, and these processes must be performed by a processing method such as sand blasting or electric arc processing, which requires a lot of work man-hours and work time, and productivity. In addition, there was a problem of lack of labor saving and raising the cost.
In addition, when the surface is processed or a minute projection is provided on the surface, the static friction coefficient of the entire surface is significantly reduced, the surface becomes slippery, and the repulsive force is extremely small when the hair is wound, The hair bundle must be thinned, and if the length of the hair to be wound is not less than 1.5 times the outer circumference of the rod (more than one and a half turns), it will come off from the rod part, and the workability of the treatment work will be improved. In addition to the lack, short hair had the problem of being difficult to treat.
[0005]
In addition, when the surface is processed or a minute protrusion is provided, when the hair is softened (swelled) with a perm solution, the rough surface of the rod surface will affect the hair end of the wound around the hair. Later, there was a problem that the hair ends were rough and easily cut off.
Furthermore, when thinning the hair bundle of hair, many rods with a small diameter must be wound, so that the operation work is complicated, the work efficiency is poor, and a great deal of work time is consumed, which is inconvenient for the patient (customer). It had the problem of giving pleasure and wasting time.
When a force is applied to the end of the rod, the rod is deformed, and it is difficult to wind the hair, resulting in a lack of permanent wave finish and a long time for work and lack of workability.
[0006]
Since the inside of the rod is formed in a hollow cylindrical shape, there is a problem that the rod is deformed and cannot be reused when it is dropped on the floor during work or transportation, and the durability is insufficient.
Since it is formed by injection molding, only a single length rod can be obtained for each mold, and there is a problem that it lacks versatility.
Since it is formed of a single thermoplastic elastomer, the elasticity is low, and when the hair bundle to be wound is thick, hard hair, or short hair, the winding work is difficult and the workability is lacking.
In the case of water rolls, etc., where the permanent hair is wound around the hair, the head hair does not swell and soften, so it is hard, and hard hair, virgin hair, short hair, etc., return to the original state from the state where the hair is wrapped, From the wound state, the shape of the hair becomes larger and becomes larger than the intended permanent wave, and there is a problem that the finish of the permanent is lacking.
[0007]
In addition, the permanent hair curlers published in the Ha No. Gazette do not return to the original state when the rod part is bent, and are repeatedly bent and stretched repeatedly. It had the problem of lacking.
Synthetic resin is simply foamed and does not have rubber elasticity. For example, foamed synthetic resin such as foamed polyethylene has a very low repulsive force, so it tends to cause uneven waves due to the strength of the wrapping hair bundle. The treatment was difficult and required skill.
In addition, the foamed cells on the surface of the foamed synthetic resin are deteriorated by the permanent liquid and detergent during work, and the surface can be uneven, and the hair gets caught during the treatment and the workability is remarkably impaired. There was a problem that the durability was remarkably lacking.
[0008]
The present invention solves the above-described conventional problems, and has an optimal elasticity and hardness for a practitioner to perform a permanent operation on the rod portion. Further, since it is an assembly structure, the length of the rod can be increased or decreased. It can be designed and can be applied to various treatments, and it is excellent in versatility, and the hair is easy to wrap around the rod part during the treatment, and the hair does not escape even if it is wound up to the tip of the hair, and the workability at the time of treatment is remarkably excellent. An object of the present invention is to provide a permanent rod which is light and durable because it is not impregnated in the rod portion with a permanent liquid or a cleaning liquid, and which has no complicated structure and excellent productivity.
[0009]
[Means for Solving the Problems]
    The permanent rod according to claim 1 of the present invention is:On the surfaceLow-foamed hollow synthetic rubber having a skin layer, an elastic hollow body made of a thermoplastic elastomer or a soft synthetic resin, and a hollow or solid synthetic body inserted into the hollow portion of the elastic hollow body and fixed in pressure contact A rod part having a core made of resin or wood, a cylindrical part, a rubber stopper formed by cutting into one end of the cylindrical part in an uneven shape, and the other end of the cylindrical part An external fitting portion that externally fits the end portion of the rod portion, and a lid portion that is formed in a wall shape between the rubber stopper and the external fitting portion, and that is in close contact with the end portion of the rod portion., Provided at both ends of the rod partAnd a cap portion.
[0010]
  As a result, the surface of the rod part has a skin layer, which prevents the permanent liquid and cleaning liquid from entering the rod, and the permanent liquid becomes heavier with the permanent liquid during the procedure and damages the subject's hair. Can be prevented. In addition, since cleaning water does not enter the inside of the rod part, it is possible to wash off the dirt, dandruff, and cleaning solution by simply cleaning the permanent rod after the treatment is completed, and it can be easily dried by air drying, so the rotation rate of the permanent rod It has the effect of reducing the stock of permanent rods accordingly.
    Since the cap portion is provided at both ends of the rod portion, both ends of the rod portion are prevented from being crushed or twisted, so that the workability of the surgical operation is improved.
The cap part lid seals the low-foamed elastic hollow body of the rod part and the end of the core material, especially the hollow core material, preventing permanent liquid and cleaning liquid from entering the rod part and preventing the rod part from containing water. Therefore, the weight can be maintained and the cleaning liquid containing dandruff or the like does not enter the rod portion, so that the hygiene and safety can be improved.
  If the permanent rod is made of an elastic hollow body made of low-foaming soft synthetic resin, synthetic rubber, thermoplastic elastomer, etc. and a hollow core material, it is lightweight and has many permanent rods on the head of the patient. Even if it is applied, it can prevent the head from becoming heavy. Moreover, it has the effect | action that it can prevent giving a sense of incongruity, such as a feeling of weight, even if it winds to the hair base.
  Since the rod part is made of an elastic hollow body, moderate elasticity and surface fit can be obtained, it exhibits an appropriate anti-slip effect on the fingertip, and the permanent rod fits naturally and softly on the hair, This has the effect that the hair can be easily wound around the permanent rod.
  By changing the length, shape, or diameter of the rod portion or core material, permanent rods having various sizes and shapes can be obtained as appropriate, which has the effect of being non-uniform and excellent in versatility.
  Further, even if the permanent rod contacts the hair, it does not cause hair breakage or hair loss and has an effect of preventing hair damage.
  Since the rod portion is formed of an elastic hollow body, it has an effect that it is not easily damaged even when dropped and has excellent durability.
  Furthermore, since the structure is simple, the manufacturing cost can be reduced and the economy is excellent.
[0011]
Since the rod part is a low-foam elastic hollow body and has a thickness, it is possible to catch the hair bundle at the same time as it starts to wind the hair, and because it is thick and soft, it repels the hair bundle Even a permanent rod with a strong force and a large diameter can produce a firm wave (curl) from the hair tip, and has the effect of significantly improving the treatment performance.
Since the rod part is a low-foam elastic hollow body, the force pulling the hair is absorbed by the rod part, preventing the burden on the customer's hair root and skin, and causing the skin to become inflamed by not giving the burden And has the effect of enhancing safety.
Even if the hair bundle is thick, a large static frictional resistance is obtained at the same time that the hair bundle starts to be wound, and a strong repulsive force is obtained by the compression force of the internal core material, and this repulsive force makes it easy to bundle the hair bundle on the rod part It is easy to wind, and has the effect that the number of curler rods wound around the head can be reduced.
Since the core is inserted into the rod part, the permanent rod does not bend or the center part is dented, so it has uniform elasticity and hardness, so the practitioner can wrap the hair with confidence Has the effect of being able to.
In addition, since the permanent rod has elasticity, even if the rod is wound up to the base of the hair and fixed to the rod with a rubber band, it does not hurt the background and further prevents the patient from feeling painful. Have.
[0012]
The cap part has a rubber stopper part that is formed in a cylindrical shape and is processed into a concavo-convex shape at one end, a lid part that is in close contact with the end part of the rod part at the center, and an end of the rod part at the other end. What is provided with the outer fitting part which closely_fit | attaches a part is used. Thereby, it is possible to prevent the permanent liquid and the cleaning liquid from entering the rod part from the end part of the rod part. The outer fitting portion is formed in a tapered shape that is expanded outward, and the lid, the inner wall of the outer fitting portion, the end of the rod portion, the protrusion of the cap portion, and the core material are further fixed with an adhesive. Since the inside of the rod part and both ends thereof are hardened, it is possible to prevent twisting of the surface layer part at both ends of the rod part when winding the hair around the rod part, and to make it easier to wind the hair bundle of hair more completely. Have.
In addition, when winding the hair bundle around the rod part, the right and left cap part and the rod part end surfaces are wound with fingertips while pulling the hair bundle like a screw with a screwdriver. Since the force of the fingertips acts on the main body, both ends of the main body can be prevented from being crushed and the surface layer can be prevented from being twisted.
[0013]
In the conventional permanent rod, when the surface layer portions at both ends of the rod portion are twisted, the fingertip force is not applied, so it is very difficult to wind, and the excessive force is applied to the hair bundle, and a uniform permanent wave is obtained. This problem can be solved by this configuration.
Since the surface of the rod part is not ground, there is no roughness, and after the treatment, there is no roughness on the hair tip, and there is an effect that the permanent can be made with a supple gloss without damaging the cuticle. Have.
Since the rod part, the cap part, and the core material are manufactured and assembled separately, permanent rods having various lengths are obtained, which has the effect that it is not uniform but has excellent versatility.
Here, as the soft synthetic resin of the elastic hollow body, linear low density polyethylene (L-LDPE), polyurethane, silicon resin, vinylidene chloride resin, or the like is used.
The use of linear low-density polyethylene is preferable because a lightweight permanent rod having excellent mechanical strength can be obtained.
The cap part is injection-molded with a synthetic resin such as polyethylene, polypropylene, linear low-density polyethylene, vinyl chloride resin, vinylidene chloride resin, polyamide, polyester, or other synthetic resin or filler. Is used.
The shape of the core material may be formed in a polygonal shape such as a circle, triangle, or square in cross section. In the case of a circular shape, the compression resistance is excellent, and in the case of a polygonal shape, when inserted into the hollow portion of the elastic hollow body, the contact area with the inner wall of the hollow portion is small, so the workability of the insertion work is reduced. Can be improved.
[0014]
The permanent rod according to claim 2 of the present invention is the permanent rod according to claim 1, wherein the synthetic rubber is butadiene rubber (BR), styrene-butadiene rubber (SBR), isoprene rubber (IR), ethylene-propylene rubber (EPM). ), Butyl rubber (IIR), chloroprene rubber (CR), nitrile rubber (NBR), acrylic rubber (ACM, ANM), urethane rubber (U), silicone rubber (Q), fluorine rubber (FPM), vulcanized rubber, poly One or more of ether rubber (POR, CHR, CHC), chlorosulfonated polyethylene (CSM), and polyepichlorohydrin, or a composite of these and a filler.
[0015]
Thus, in addition to the action obtained in claim 1, the rod part can also be used for thick hair bundles, short hair, and hard hair due to the elasticity of the rod part due to the synthetic rubber and the compressive force due to the repulsive force pressing the synthetic rubber from the inside by the core. It has the effect | action that it can wind uniformly, without the center part of a part bending.
Since the core material and the foamed cell at the center portion have an appropriate rigidity, the hair is adapted to the rod portion and can be finished to the desired permanent wave.
Here, as the filler, organic fibers such as wood powder and rayon, mica, silica, calcium carbonate, clay, graphite, carbon black, resin fine powder such as polystyrene and polymethyl methacrylate, and the like can be used. By adding these, the mechanical strength can be improved, the amount can be increased, the molding shrinkage can be reduced, and the like.
[0016]
The permanent rod according to claim 3 of the present invention is the permanent rod according to claim 1 or 2, wherein the thermoplastic elastomer is an ionomer such as stereoblock polypropylene, 1,2-polybutadiene, polyolefin having an ion cluster, polystyrene or polyurethane. Block polymers with hard chain thermoplasticity such as olefin, olefin (TPO), polyester, and polyamide, graft polymers such as polyethylene and fluorine resin, nitrile rubber-polyvinyl chloride copolymer, dynamic One or more vulcanized thermoplastic elastomers (TPV) or a composite of these and the filler is used.
[0017]
As a result, in addition to the effects obtained in the first or second aspect, the thermoplastic elastomer is excellent in mechanical strength and chemical resistance, and thus has an effect of excellent durability.
Since the rod part is a low-foam thermoplastic elastomer, the force that pulled the hair during the treatment is absorbed by the rod part, preventing the burden on the customer's hair roots and the skin, and avoiding the burden on the skin It has the effect of improving safety without causing inflammation.
When the permanent rod is formed of a low-foam thermoplastic elastomer and a hollow core material, the permanent rod is lightweight, and even if a large number of permanent rods are applied to the head of the patient, the head can be prevented from becoming heavy. Moreover, it has the effect | action that it can prevent giving a sense of incongruity, such as a feeling of weight, even if it winds to the hair base.
[0018]
  The permanent rod according to claim 4 of the present invention is the permanent rod according to any one of claims 1 to 3, wherein the cap portion is,Fingertip non-slip portion comprising uneven portions and small holes formed on the surface of the cylindrical portion,And / or,It has the structure provided with the 1 or more fin part erected in the inner wall of the said external fitting part, and being cut and fixed to the said elastic hollow body of the said rod part.
[0019]
  This,Since the fin portion is provided inside the outer fitting portion of the cap portion, the cap portion and the rod portion are firmly coupled and integrated, and the sliding between the rod portion and the cap portion can be prevented.
  Here, a core material having a length of ½ may be erected in the center of the lid portion of the cap portion on the rod portion side. This is because the insertion of the core material can be completed simply by fitting the cap part to the rod part, and the productivity can be improved.
[0020]
The permanent rod according to claim 5 of the present invention is the permanent rod according to any one of claims 1 to 4, wherein the elastic hollow body has a skin layer of 2 μm to 1000 μm, preferably 20 μm to 800 μm, more preferably 50 μm to The structure has a thickness of 500 μm.
[0021]
As a result, the surface of the rod portion is smooth because it has a skin layer of a predetermined thickness, and when the permanent rod is rewound from the hair, it can be smoothly rewound without being caught by cutting the hair. In addition, it has the effect of preventing the patient (customer) from suffering from hair cutting or hair loss during the treatment.
In addition, since a fine warp is formed on the surface of the skin layer due to shrinkage at the time of molding, the cuticle of the hair is caught by this warp, so that it has the effect of improving the ease of winding the hair and improving workability.
Here, although depending on the type of the elastic hollow body, as the thickness of the skin layer becomes smaller than 50 μm, when the skin layer is damaged, the cleaning liquid containing permanent liquid, dandruff and other dirt is impregnated in the foam layer. A tendency to lack hygiene and further lack durability is likely to appear, and as it becomes larger than 500 μm, hardness tends to be too strong and workability tends to be lacking. In particular, when the thickness of the skin layer is less than 2 μm or larger than 1000 μm, this tendency is remarkable, which is not preferable.
The skin layer may be formed by two-layer extrusion molding. By performing two-layer extrusion molding, the thickness of the skin layer and the foaming ratio can be adjusted to predetermined values.
[0022]
The permanent rod according to claim 6 of the present invention is the permanent rod according to any one of claims 1 to 5, wherein the expansion ratio of the elastic hollow body is 1.5 to 5 times, preferably 1.8 to 3. It is foamed 5 times and formed of closed cells, and has a shore hardness of 20 ° to 80 °, preferably 20 ° to 55 °.
[0023]
Thereby, it has the effect | action that the optimal elasticity can be given to a rod part in a treatment, and the workability | operativity of the winding operation | work of the hair during a treatment can be improved.
In addition, since the foam cell is a closed cell, even if the skin layer is cut and damaged by the hair, the permanent liquid or the contaminated cleaning liquid is prevented from entering the rod portion, thereby improving the durability.
The shore hardness is 20 ° -80 °, preferably 20 ° -55 °, which gives a moderate repulsive force to the wound hair and makes it easy to wrap and fix the hair around the rod, resulting in the desired curl and hair wave. It has the effect that it can be finished.
Here, as the expansion ratio becomes smaller than 1.8 times, the Shore hardness tends to increase too much. When the inner diameter of the hollow portion of the elastic hollow body is smaller than the outer diameter of the core material, the core material is changed to the hollow portion. It is difficult to insert and lowers productivity, and the weight of the rod part tends to be heavy, so it is not preferable, and as it becomes larger than 3.5 times, the Shore hardness decreases, the rod part becomes too soft and the hair is wrapped around the hair At this time, the rod portion is crushed or twisted, so that it is easy to be deformed and the workability of the winding work is deteriorated and the finish of the permanent wave tends to be deteriorated. In particular, if it is less than 1.5 times or more than 5 times, this tendency is remarkable, which is not preferable.
[0024]
A permanent rod according to a seventh aspect of the present invention is the permanent rod according to any one of the first to sixth aspects, wherein the core material is made of a polyolefin-based tubular body or rod-shaped body such as polyethylene, polypropylene, or polystyrene, The outer diameter is 5/7 to 1/5, preferably 2/3 to 1/4 of the cross-sectional diameter of the rod portion, and the outer diameter of the core is the inner diameter of the hollow portion of the elastic hollow body. More than 1.5 to 25%, preferably 2 to 20% larger.
[0025]
Thereby, since the core material is inserted in the hollow portion, it has excellent shear stress resistance and has an effect of preventing the rod portion from being twisted or dented in the central portion during the treatment.
In addition, since the cross-sectional diameter of the tubular body of the core material is 5/7 to 1/5, preferably 2/3 to 1/4 of the cross-sectional diameter of the rod, the core material is contained in the elastic hollow body of the rod portion. Therefore, it has an effect that it can obtain an optimum hardness and static friction resistance at the time of treatment in combination with the skin layer.
Since the outer diameter of the core material is 1.5 to 25%, preferably 2 to 20% larger than the diameter of the hollow portion of the elastic hollow body of the rod portion, it is only necessary to insert the core material into the elastic hollow body. The core material can be fixed to the elastic hollow body, and has an effect that it can be produced at a low cost since it requires less man-hours and does not require an adhesive. By forming 2 to 20% larger, moderate elasticity and repulsive force and productivity can be improved.
In particular, when a hollow tubular material such as polyethylene or polypropylene is used as the core material, the core material has a specific gravity of 1 or less, so it is light and improves the workability by floating in water due to its buoyancy during cleaning. ) Has a function of preventing a burden on the scalp.
[0026]
Here, as the outer diameter of the hollow tubular body of the core material becomes larger than 2/3 of the cross-sectional diameter of the rod portion, the rod portion becomes harder and the thickness of the elastic hollow body becomes thinner and the repulsive force is weakened. In addition, the elasticity of the rod portion tends to become too strong as it becomes smaller than ¼, and when the cross-sectional diameter of the tubular body exceeds 5/7 to 1/5 of the cross-sectional diameter of the rod, these tendencies tend to occur. Since it is remarkable, it is not preferable.
Further, the core material may be divided into two equal parts, and each may be inserted from both ends of the rod portion. This is to increase productivity.
The thickness of the elastic hollow body such as the thermoplastic elastomer after the core material is inserted is 2 to 5 mm, preferably 2 to 3.5 mm. Thereby, when the elastic hollow body is compressed from the inside and a hair bundle of hair is wound around the rod portion, an appropriate repulsive force can be obtained and the hair can be easily wound.
[0027]
A permanent rod according to an eighth aspect of the present invention is the permanent rod according to any one of the first to sixth aspects, wherein the permanent rod is formed in a convex shape in the center of the outer fitting portion side of the lid portion. It has a protrusion that is fitted by internal fitting or external fitting, and the core material is made of a polyolefin, such as polyethylene, polypropylene, polystyrene, or a tubular body or rod-shaped body formed of a polyolefin-based copolymer, The outer diameter is 5/7 to 1/5, preferably 2/3 to 1/4 of the cross-sectional diameter of the rod portion, and 0.5 times to 1 times the inner diameter of the hollow portion of the elastic hollow body .1 times, preferably 0.8 times to 1.05 times.
[0028]
Thereby, since it has the protrusion which fits a core material in the lid part of a cap part, the integration of a chap part and a rod part can be firmly combined, and it can be said that a slip with a rod part and a cap part can be prevented. Has an effect.
Therefore, it is possible to prevent the permanent liquid or cleaning liquid from entering the rod portion from the end portion of the rod portion and prevent the rod portion from containing water, maintain weight reduction, and improve hygiene and safety. It has the action.
Further, even when a large force is applied to the rod portion during the winding operation, the cap portion and the rod portion do not rotate or the cap portion does not come off from the rod portion, and the strength is extremely excellent.
By fitting the core material to the protrusion in the cap portion by external fitting or internal fitting, the cap portion and the core material are firmly integrated, and the durability is improved.
Here, the protrusion is formed in a hollow shape or a solid shape in which the fitting portion side is opened. Moreover, it is preferable that the top part of the protrusion is formed 2 to 3 mm shorter than the end part on the fitting part to the rod part of the cap part. Since the core material is formed to be larger than the inner diameter of the elastic hollow body, it is possible to improve the fit of the cap portion to the rod portion by forming the top portion of the protruding portion to be 2 to 3 mm shorter.
When the mating side of the rod part of the cap part is formed on an inclined wall so that the wall thickness increases inward from the opening end part, this facilitates the fitting work of the cap part and the rod part and increases productivity. Can do.
When the outer diameter of the core material is smaller than 0.8 times the inner diameter of the hollow portion of the elastic hollow body, a tendency that the elastic hollow body tends to be deformed during the treatment appears, and when it exceeds 1.05 times, the elastic hollow body Since the outer diameter of the body tends to be large and the tendency to reduce the ability to form curls and waves appears, neither is preferable.
[0029]
A permanent rod according to a ninth aspect of the present invention is the sliding rod according to any one of the first to eighth aspects, wherein the cap portion is formed by knurling or uneven portions on the outer peripheral wall of the lid portion. A structure including a prevention portion and / or an insertion hole for a pin such as a single pin or an American pin drilled at a symmetrical position of the cap portion wall between the rubber stopper and the lid portion Yes.
[0030]
As a result, the cap portion has a slip prevention portion such as knurling and a recess in the outer fitting portion, so that the finger can be prevented from slipping during the treatment, and the workability during the treatment can be remarkably improved. Have.
Since a pin insertion hole such as a single pin is provided between the cap lid part of the cap part and the rubber stopper, the permanent rod is inserted by inserting a single pin between the insertion holes of the permanent rod wound with the hair bundle. Permanent rods can be set up perpendicular to the head surface. As a result, the conventional permanent rod cannot be spirally curled, but has the effect that the spiral curl can be performed only by inserting a single pin into the insertion hole with one permanent rod.
Here, the pin insertion holes are formed at 2 to 8 symmetrical positions. Moreover, you may form an uneven | corrugated shape or a concave slip prevention part in the outer surface of an external fitting part. Thereby, it is possible to prevent the finger from slipping during the treatment, and to significantly improve the workability during the treatment.
[0031]
A permanent rod according to a tenth aspect of the present invention is the permanent rod according to any one of the first to ninth aspects, wherein the concave portion is formed by being cut in parallel in the length direction on the outer surface of the elastic hollow body. It has the structure equipped with these.
[0032]
Thereby, the recessed part of the outer surface of an elastic hollow body exhibits the anti-slip | skid effect, and has the effect | action which can improve the winding workability | operativity of hair.
The permanent liquid stays in the recesses, so that the penetration and fixing of the permanent liquid into the hair can be enhanced, and a uniform permanent wave can be formed. Here, 2 to 18 recesses, preferably 4 to 12 recesses are formed. When the number is less than 4, the fixing effect due to the recesses tends to be small, and as 12 or more are formed, the effect of the skin layer tends to be reduced depending on the material of the elastic hollow body. If the number is less than or more than 18, this tendency is remarkable, which is not preferable. The depth of the recess is 30 μm to 1000 μm, preferably 80 μm to 800 μm. As it becomes shallower than 80 μm, the tendency for the anti-slip effect to decrease appears, and as the depth becomes deeper than 800 μm, the strength of the skin layer tends to become weak.
[0033]
DETAILED DESCRIPTION OF THE INVENTION
(Embodiment 1)
FIG. 1 is a perspective view of a permanent rod according to Embodiment 1 of the present invention, FIG. 2 (a) is a cross-sectional view taken along line AA in FIG. 1, and FIG. It is sectional drawing of a B line.
In FIG. 1, reference numeral 1 denotes a permanent rod according to the first embodiment of the present invention, 2 denotes a cap portion fixed to both ends of the permanent rod 1 with an adhesive or the like, and 3 denotes an intermediate portion of the cylindrical portion of the cap portion 2. The cap part of the formed cap part, 4 is a rubber stopper part that stops a rubber band or the like formed in a concavo-convex shape at one end part of the cap part 2, and 5 is a rod part that is formed by an inclined wall whose inner wall is expanded on the opening side. Reference numeral 6 denotes an outer fitting portion that closely fits the end of the rod, and 6 denotes a rod portion of the permanent rod 1.
[0034]
2 (a) and 2 (b), 7 is a polyolefin-type thermoplastic elastomer (TPO) or polypropylene-EPDM-type dynamic vulcanization heat formed into a substantially hollow cylindrical shape, a hexagonal shape, an octagonal shape or the like. A plastic elastomer (TPV), an elastic hollow body of the rod portion 6 extruded from synthetic rubber with a foaming ratio of 1.8 to 3.5 times, and a thickness 8 formed on the surface of the elastic hollow body 7 of 50 μm to 500 μm skin layer 9 is formed of thermoplastic synthetic resin such as polyethylene, polypropylene, polystyrene such as PET, polyester such as PET, polyamide, etc., which is inserted and fixed in the hollow portion formed in the center of the cross section of the elastic hollow body 7. It is a core made of a tubular body having a circular cross section.
Here, the core material 9 is 1.5 to 25% larger than the diameter of the hollow portion of the elastic hollow body 7 of the rod portion 6 and is formed to 2/3 to 1/4 of the cross-sectional diameter of the rod portion 6.
The elastic hollow body may be other synthetic rubber or soft synthetic resin. Further, the expansion ratio may be 1.5 to 5 times, and the thickness of the skin layer may be 50 to 500 μm.
[0035]
Using the permanent rod according to the first embodiment of the present invention configured as described above, the permanent treatment method will be described below with reference to the drawings.
FIG. 3 is a state diagram showing a usage state of the permanent rod, and FIG. 4 is a state diagram when the permanent rod is wound.
In the figure, 10 is a permanent paper made of Japanese paper or the like, 11 is a hair bundle of hair, 11a is a hair base, and 12 is a rubber band wound around and locked to the rubber stoppers 4 of the cap portions 2 at both ends.
[0036]
Next, the treatment method will be described.
(1) Divide the hair into the necessary size so that it can be easily treated.
(2) Apply a first permanent solution (an alkaline agent such as ammonium thioglycolate) to the necessary part of the hair for each section.
(3) Next, an appropriate amount of hair bundles 11 are separated, and the separated hair bundles 11 are used for permanents by using thin permanent paper 10 in order to prevent the hair from being disturbed and to improve the work efficiency. After being wound around the rod 1, the rubber band 12 is fixed to the rubber stoppers 4 at both ends to prevent loosening.
(4) When the permanent rod 1 has been wound around the entire head, the first permanent liquid is applied again.
(5) Put a cap on the head of the person to be treated, and set and estimate the time for the drug solution to sufficiently act on the hair.
(6) Check that the chemicals are acting on the hair over time.
(7) The first permanent solution adhering to the hair is poured with warm water. (Intermediate rinse)
(8) As a result of the test curl, if the action of the chemical is insufficient, put the cap on again and set the time. When the action of the chemical solution is sufficient, a second permanent solution (oxidizing agent: neutralizing solution such as potassium promoate, sodium promoate, hydrogen peroxide solution, etc.) is sufficiently applied from the permanent rod 1 for 5 to 10 minutes. After leaving, apply again and leave it for about 5 minutes.
(9) After the application of the second permanent solution, if the time has passed and the oxidation action has ended, the permanent rod 1 is removed, the hair is thoroughly rinsed with slightly warm water, and after rinsing is completed, the hair is set.
[0037]
Since the permanent rod according to the present embodiment is configured as described above, it has the following effects.
1) Since the rod part is made of an elastic hollow body made of a synthetic rubber such as thermoplastic elastomer or vulcanized rubber, or a low foam of soft synthetic resin, it has a large friction coefficient and winds around the rod part. be able to.
2) Although the conventional permanent rod returns and the curl tends to collapse due to the restoring force of the hair, since the elastic hollow body is a low foam, it can absorb the restoring force of the hair and prevent the curl from collapsing.
3) Since the rod portion is formed of a low foam, even if the hair is wound, it can be curled in shape with only moderate distortion. In addition, it has resilience due to the elasticity of the thermoplastic elastomer and elasticity due to low foaming, preventing the permanent rod from deforming and enhancing its durability.
4) Since the rod part has a skin layer on the surface and foaming is a closed cell, it prevents the permanent liquid from entering the rod part during use, so that the permanent rod does not become heavy, and the oxidizing agent in the permanent liquid As a result, it is possible to prevent the foam cells from being oxidized and become brittle, and to improve durability.
5) The friction coefficient of the skin layer is large, and the surface of the skin layer has fine vertical rods that can be confirmed with a microscope, so that it is easy to catch the hair during winding, and the workability of the winding work is improved.
6) Further, since the permanent rod floats on the washing water due to the closed cells of the rod portion even during washing with water, it is easy to separate the permanent rod from the permanent paper, and the hair can be easily washed.
7) Since the core material inserted into the hollow part of the rod part has a diameter approximately 2 to 20% larger than the diameter of the hollow part, the EPDM of the rod part is compressed and cured by the skin layer and the core material. Therefore, the hair can be prevented from sinking into the wall surface of the rod portion.
8) Since the rod portion has a low foam and a hollow core material is inserted inside, the rod is lightweight and floats in the wash water during washing, so that the permanent rod and the permanent paper can be easily separated.
9) Since the rod part fitting part side of the cap part is formed with an inclined wall that is thickened from the opening end toward the lid part, the rod part can be easily fitted into the cylinder part of the cap part, and the productivity To increase.
[0038]
(Embodiment 2)
FIG. 5 is a cross-sectional view of the permanent rod according to the second embodiment of the present invention, and FIG. 6 is a cross-sectional view of the main part of the cap portion of the permanent rod according to the second embodiment.
5 and 6, 2a is a cap portion formed with an inclination angle α of 2 to 3 ° on the rubber stopper 4a side and an inclination angle β of 7 ° ± 1 ° on the rod portion side, and 4a is an uneven portion. A rubber stopper portion having a round end, 20a is a cap portion of the second embodiment, 21 is a fin projecting one or more between the inside of the outer fitting portion 5 and the lid portion 3, and 22 is a lid portion. 3 is a protrusion formed in a tubular shape at the center of the rod portion fitting side. Components similar to those in the first embodiment are denoted by the same reference numerals and description thereof is omitted.
7a is foamed with polyolefin-based thermoplastic elastomer (TPO), polypropylene-EPDM-based dynamic vulcanization-type thermoplastic elastomer (TPV), or synthetic rubber formed into a hollow cylinder, hexagon, octagon, etc. The elastic hollow body of the rod portion 6 extruded at a magnification of 1.45 times, 8a is a skin layer formed on the surface of the elastic hollow body 7a with a thickness of 20 μm to 40 μm, and 9a is the center of the cross section of the elastic hollow body 7 A core material made of a tubular body formed of a thermoplastic synthetic resin such as polyethylene, polypropylene, polystyrene, or the like, polyester such as PET, polyamide, etc., which is inserted into and fixed to the hollow part.
Here, the core material 9 a is 1.5 to 20% larger than the diameter of the hollow portion of the elastic hollow body 7 a of the rod portion 6 and is formed to 2/3 to 1/4 of the cross-sectional diameter of the rod portion 6. The outer diameter of the core material 9a and the inner diameter of the elastic hollow body 7a may be equal. In this case, the elastic hollow body 7a is preferably hard and has a high elastic force.
[0039]
Moreover, the method of inserting and fixing the core material 9a in the hollow portion of the elastic hollow body 7a may be any of full-surface pressure bonding, partial pressure bonding, and point pressure bonding. As the adhesive, ethylene-vinyl acetate copolymer, vinyl chloride-vinyl acetate copolymer, epoxy resin, polyurethane, polypropylene, nitrile rubber, cyanoacrylate and the like are preferably used.
The shape of the core material 9a is not particularly limited, such as a tubular body, a rod-shaped body, and a flat plate. The cross-sectional shape of the core material 9a is not particularly limited to a circular shape, an elliptical shape, a triangular shape, a polygonal shape such as a square shape, a hexagonal shape, an octagonal shape, a spiral shape, a star shape, a screw shape, or the like. Further, when a core material 9a having a different cross-sectional shape from the hollow portion of the elastic hollow body 7a is used, a repulsive force acts on the contact surface between the core material 9a and the elastic hollow body 7a, and the repulsive force causes the hair bundle to be attached to the rod portion 6. While being able to catch easily, the crimping | compression-bonding area of the elastic hollow body 7a and the core material 9a becomes small, and it becomes easy to insert the core material 9a in a hollow part.
Further, the skin layer 8a is formed of one layer or two layers. When it is formed of two layers, the strength is increased and the permeation of the permanent liquid into the interior can be prevented.
[0040]
As described above, since the permanent rod according to the present embodiment is configured, in addition to the operation according to the first embodiment, the following operation is provided.
1) Since the cap portion has a protrusion for fitting the core material to the lid portion, the chap portion and the rod portion can be firmly coupled and integrated, and slipping between the rod portion and the cap portion can be prevented.
2) Permanent liquid and cleaning liquid can enter the rod part from the end of the rod part, preventing the rod part from containing water, maintaining weight reduction, and improving hygiene and safety. .
3) Just by fitting the cap part to the rod part, the core material can be inserted and the productivity can be improved.
4) By changing the cross-sectional diameter and cross-sectional shape of the core material, it is possible to appropriately manufacture permanent rods having different sizes, and desired curls and hair waves can be made.
5) In addition to the action of the first embodiment, the cap part 20a is externally fitted to the rod part, and at the same time, the fin 21 is cut and inserted into the elastic hollow body of the rod part, so that the integration of the rod part and the cap part is promoted. The cap portion or the rod portion can be prevented from rotating during the treatment. Moreover, since the protrusion 22 is fitted to the core member 22, the joining of the cap part 20a and the rod part 6 can be more firmly integrated. Furthermore, since the end of the concavo-convex portion of the rubber stopper 4a is rounded, the detachment of rubber and the rubber are fixed to the end of the recess, so that workability can be improved.
6) Since the vicinity of the center part of the cap part is formed larger than the rod part, and the rubber stopper part side and the rod part fitting side are inclined, the cap part can be easily held and the rubber band can be easily applied. Since the central portion of the cap portion is larger than the diameter of the rod portion, the contact resistance with the hair bundle can be reduced, and the rod can be easily rotated at the cap portion.
[0041]
  (Embodiment 3)
  FIG. 7 is a cross-sectional view of the main part of the rod portion of the permanent rod according to the third embodiment of the present invention.
  The cap part 20b of the third embodiment is different from the cap part of the second embodiment in that a core member 23 having a length of approximately ½ is erected at the center of the lid part 3 on the rod part side. It is a point. The core material 23 is formed of a hollow core material 23a and a solid core material 23b, and the core material is formed at the center.23Core material23bConvex part23cIs fitted into the hollow portion of the core member 23a.
  Thereby, in addition to the effect | action by Embodiment 1, only by carrying out the cap part 20b on the both ends of a rod part, a core material can also be inserted simultaneously, the insertion process of a core material can be skipped, and productivity can be improved significantly. .
[0042]
(Embodiment 4)
FIG. 8 is a perspective view of the permanent rod according to the fourth embodiment of the present invention, and FIG. 9 is a side view of the main part of the cap portion of the permanent rod according to the fourth embodiment of the present invention.
3 is a cap lid part, 4 is a rubber stopper part, 6 is a rod part, and 8 is a skin layer. Since these are the same as those in the first embodiment, the same reference numerals are given and description thereof is omitted.
31 is a permanent rod according to the fourth embodiment, 32 is a cap portion of the permanent rod 31 according to the fourth embodiment in which the diameter on the rubber stopper 4 side is large and the diameter on the rod portion 6 side is small, and 33 is a cap portion. The anti-slip part 34 prevents the finger from slipping at the time of the hair curl made of knurling or uneven parts formed on the peripheral wall part of the cap lid part 32, and the outer peripheral wall 34 becomes smaller toward the rod part 6 side. An outer fitting portion formed so as to be inclined, 35 is a concave portion for preventing the slip of a finger formed on the outer periphery of the outer fitting portion 34 in parallel with the length direction of the outer fitting portion 34, and 36 is a cap of the cap portion 32. An insertion hole 36a for inserting a pin such as a single pin or an American pin formed at an equal interval between the lid portion 3 and the rubber stopper 4 is a convex shape at the center of the insertion hole 36 on the rubber stopper 4 side. It is the formed single pin guide part.
[0043]
Since the permanent rod according to the fourth embodiment is configured as described above, it has the following actions in addition to the actions obtained in the first embodiment.
Since the cap portion has a non-slip portion such as knurling and a concave portion in the outer fitting portion, it is possible to prevent the finger from slipping during the treatment and to significantly improve the workability during the treatment. Since there is a single pin insertion hole between the cap lid part of the cap and the rubber stopper, the permanent rod is inserted into the permanent rod by inserting the single pin between the insertion holes of the permanent rod wound with the hair bundle. Permanent rods can be erected at right angles to the skin surface. As a result, the conventional permanent rod cannot be spirally curled, but can be spirally curled only by inserting a single pin or the like into the insertion hole with a single permanent rod.
Since the pin guide portion is provided, the pin can be easily inserted even if the insertion hole is hidden by the hair bundle.
[0044]
(Embodiment 5)
FIG. 10 is a longitudinal sectional view of a permanent rod according to the fifth embodiment of the present invention.
In the figure, reference numeral 37 denotes a recess having a V-shaped cross section formed by being cut into the outer surface of the elastic hollow body 7 in a depth of 100 μm ± 10 μm parallel to the length direction.
The permanent rod of the fifth embodiment is different from the first embodiment in that a concave portion is formed on the outer surface of the elastic hollow body 7.
As a result, in addition to the effects of the first embodiment, the permanent liquid can be retained on the surface of the permanent rod, and penetration and fixing of the hair can be promoted, so that uniform curls and hair waves can be formed. .
In addition, during the winding work, the anti-slip effect of the hand can be exhibited and the winding workability can be improved.
[0045]
【The invention's effect】
  As described above, according to the present invention, the following excellent effects can be obtained.
  According to the invention described in claim 1,
  a. Since the surface of the rod has a skin layer, it is possible to prevent permanent liquid and cleaning liquid from entering the inside of the rod, and it is safe to prevent the permanent rod from becoming heavy with the permanent liquid during the treatment and damaging the subject's hair. Excellent in properties.
      b. Since the cap part is provided at both ends of the rod part, both ends of the rod part are prevented from being crushed or twisted, so that the workability of the surgical operation can be improved.
  c. The cap of the cap part seals the low-foamed elastic hollow body of the rod part and the end of the core material, so that the permanent liquid and cleaning liquid can enter and prevent the rod part from containing water, thus maintaining weight reduction. Can improve hygiene and safety.
  d. Since cleaning water does not enter the inside of the rod part, it is excellent in hygiene because red and cleaning liquid can be washed off just by cleaning the permanent rod after the treatment is completed. In addition, since it is easily dried by air drying, the rotation rate of the permanent rod can be increased, and the stock of the permanent rod can be reduced correspondingly, which is excellent in economic efficiency.
  e. Since the permanent rod is formed of a low-foam elastic hollow body and a hollow core material, the permanent rod is lightweight, and even if many permanent rods are applied to the head of the patient, the head can be prevented from becoming heavy.
  f. Even if the hair is wound up to the hair, it is possible to prevent an uncomfortable feeling such as a feeling of weight and the like, and it is possible to give a feeling of comfort to the patient and prevent pain.
  g. Since the hollow core material is inserted in the rod part, the permanent rod does not bend or the center part is dented, so it has uniform elasticity and hardness, so the practitioner can wrap the hair with confidence Therefore, the workability of the surgical operation can be improved.
  h. Since the rod part is a low-foam elastic hollow body and has a thickness, it is possible to catch the hair bundle at the same time as it starts to wind the hair, and because it is thick and soft, it repels the wound hair bundle. A strong permanent and large-diameter permanent rod can produce a firm wave (curl) from the tip of the hair and can significantly improve the treatment performance.
  i. Since the rod part is a low-foam elastic hollow body, the force pulling the hair is absorbed by the rod part, preventing the burden on the customer's hair root and skin, and causing the skin to become inflamed by not giving the burden There is no safety.
  j. Even if the hair bundle is thick, a large static frictional resistance is obtained at the same time that the hair bundle starts to be wound, and a strong repulsive force is obtained by the compression force of the internal core material, and this repulsive force makes it easy to bundle the hair bundle on the rod part It is easy to wind, and the number of curler rods to be wound around the head is small and can be rationalized.
  k. Since the core is inserted into the rod part, the permanent rod does not bend or the center part is dented, so it has uniform elasticity and hardness, so the practitioner can wrap the hair with confidence The practicability can be improved.
  l. Since the permanent rod has elasticity, it does not hurt the background even if the rod is wound up to the base of the hair and fixed to the rod with a rubber band, and it prevents the patient from feeling painful. Excellent.
[0046]
According to the invention described in claim 2, in addition to the effect of the invention described in claim 1,
a. It has excellent elasticity and repulsive force, and can significantly improve the workability of winding work.
b. The rod part's elasticity by the synthetic rubber and the compressive force by the repulsive force that presses the synthetic rubber from the inside by the core material evenly wraps around thick hair bundles, short hair, and hard hair without causing the center part of the rod part to bend. It can be used and has excellent practicability.
c. Since the core material and the foamed cell at the center part have an appropriate rigidity, the hair can be finished to the desired permanent wave by adapting to the rod part, improving the finish and improving the workability.
[0047]
According to the invention described in claim 3, in addition to the effect of the invention described in claim 1 or 2,
a. Since the thermoplastic elastomer is excellent in mechanical strength and chemical resistance, durability can be improved.
b. Since it is excellent in chemical resistance, there is no change over time due to the permanent liquid, and the durability can be remarkably improved.
c. Since the rod part is a low-foam thermoplastic elastomer, the force that pulled the hair during the treatment is absorbed by the rod part, preventing the burden on the customer's hair roots and the skin, and avoiding the burden on the skin Safety can be improved without causing inflammation.
d. When the permanent rod is formed of a low-foam thermoplastic elastomer and a hollow core material, the permanent rod is lightweight, and even if a large number of permanent rods are applied to the head of the patient, the head can be prevented from becoming heavy. Moreover, even if it winds to the base of hair, it can prevent giving a sense of incongruity, such as a feeling of weight, and can improve practicability.
[0048]
      According to the invention described in claim 4, in addition to the effects of the invention described in claims 1 to 3,
  a. Since the fin portion is provided in the outer fitting portion of the cap portion, the cap portion and the rod portion can be firmly integrated to prevent the rod portion and the cap portion from slipping, and the treatment performance can be improved.
[0049]
According to the invention described in claim 5, in addition to the effects of the invention described in claims 1 to 4,
a. With a skin layer on the surface, the surface of the rod part is smooth, and when unwinding the permanent rod from the hair, it can be smoothly rewound without being caught by cutting the hair and being treated. It prevents the pain caused by hair cutting or hair loss to the person and is excellent in treatment.
b. Since fine vertical folds are formed on the surface of the skin layer due to shrinkage during molding, the cuticles of the hair are caught by the vertical folds, so that the ease of winding the hair can be improved and workability can be improved.
[0050]
According to the invention described in claim 6, in addition to the effects of the invention described in claims 1 to 5,
a. Optimum elasticity can be given to the rod part in the treatment, and the restoring force of the hair can be absorbed, so even if the cracked hair bundle becomes thick, it does not interfere with the hair wrapping workability Since the number of permanent rods to be wound is also reduced, the number of treatment steps can be greatly reduced, and the workability of winding the hair during the treatment can be improved.
b. Since the foamed cell is a closed cell, even if the skin layer is cut by the hair and damaged, the permanent liquid and the cleaning liquid can be prevented from entering the rod portion and the durability can be improved.
c. The shore hardness is 20 ° -80 °, preferably 20 ° -55 °, so it gives a moderate repulsive force to the wound hair, and it is easy to wind and fix the hair around the rod part, so that it can easily be applied to the desired curls and hair waves. Finishing can be finished and finishing performance can be improved.
[0051]
According to the invention described in claim 7, in addition to the effects of the invention described in claims 1 to 6,
a. When the tubular core material is inserted, it is excellent in shear resistance and prevents the rod portion from being dented in the central portion, thereby improving workability.
b. Since the cross-sectional diameter of the core is 5/7 to 1/5, preferably 2/3 to 1/4 of the cross-sectional diameter of the rod, the weight of the permanent rod can be reduced, and the foam of the rod part can be reduced. A compressive force is applied from the inside, and combined with the skin layer, the optimum hardness at the time of treatment can be obtained and the treatment performance can be improved.
c. Since the outer diameter of the tubular body of the core material is 2 to 20% larger than the diameter of the hollow portion of the rod portion, the core material can be fixed to the elastic hollow body simply by inserting the core material into the elastic hollow body. With less man-hours and no need for adhesives, it can be manufactured at low cost and has excellent productivity.
d. When a hollow tubular material such as polyethylene or polypropylene is used as the core material, the core material has a specific gravity of 1 or less, so it is light and improves the workability by floating on the water due to its buoyancy during cleaning. Prevents the scalp from being burdened and excels in treatment.
[0052]
According to the invention of claim 8, in addition to the effects of the inventions of claims 1 to 6,
a. Because the cap part has a protrusion that fits the core to the lid part of the cap part, the integration of the chap part and the rod part can be firmly coupled, and slipping between the rod part and the cap part can be prevented. Can increase the sex.
b. It is possible to prevent the permanent liquid or cleaning liquid from entering the rod part from the end of the rod part and prevent the rod part from containing water, maintain weight reduction, and improve hygiene and safety.
c. Even when a large force is applied to the rod part during the winding operation, the cap part does not fall off the rod part, and the strength is extremely excellent and the durability can be improved.
d. Since the cap portions are provided at both ends of the rod portion, both ends of the rod portion are prevented from being crushed or twisted, so that the workability can be improved.
e. Since the rod part is formed of an elastic hollow body, moderate elasticity and surface fit can be obtained, and a moderate anti-slip effect can be exerted on the fingertip, and the permanent rod fits naturally and softly on the hair, It is possible to easily wrap hair around a permanent rod.
f. Even if the permanent rod comes into contact with the hair, no hair breakage or hair loss occurs, and hair damage can be prevented.
g. Since the rod part is formed of an elastic hollow body, it is hard to break even when dropped and has excellent durability.
h. Since the structure is simple, the manufacturing cost can be reduced and the economy is excellent.
i. By fitting the core material to the protrusions in the cap portion by external fitting or internal fitting, the integration of the cap portion and the core material becomes strong and durability can be improved.
[0053]
According to the invention described in claim 9, in addition to the effect of the invention described in any one of claims 1 to 10,
a. Since the cap portion has a non-slip portion such as knurling and a concave portion in the outer fitting portion, it is possible to prevent the finger from slipping during the treatment and to significantly improve the workability during the treatment.
b. Since there is a single pin insertion hole between the cap lid part of the cap and the rubber stopper, the permanent rod is inserted into the permanent rod by inserting the single pin between the insertion holes of the permanent rod wound with the hair bundle. Permanent rods can be erected at right angles to the skin surface. As a result, spiral curling is impossible with conventional permanent rods, but spiral curling can be performed simply by inserting a single pin into the insertion hole with a single permanent rod, which increases versatility. it can.
[0054]
According to the invention described in claim 10, in addition to the effects of the invention described in claims 1 to 9,
a. The concave portion on the outer surface of the elastic hollow body exhibits a non-slip effect, and the wrapping workability of hair can be improved.
b. Permanent liquid remains in the recesses, and the penetration and fixation of the permanent liquid into the hair can be enhanced, and a uniform permanent wave can be formed, improving the quality of the permanent.
[Brief description of the drawings]
FIG. 1 is a perspective view of a permanent rod according to a first embodiment of the present invention.
2A is a cross-sectional view taken along line AA in FIG.
(B) Sectional view taken along line BB in FIG.
FIG. 3 is a state diagram showing a usage state of a permanent rod according to the first embodiment of the present invention.
FIG. 4 is a state diagram when winding a permanent rod according to the first embodiment of the present invention.
FIG. 5 is a cross-sectional view of a permanent rod according to Embodiment 2 of the present invention.
FIG. 6 is a cross-sectional view of a main part of a cap portion of a permanent rod according to a second embodiment of the present invention.
FIG. 7 is a cross-sectional view of a main part of a cap portion of a permanent rod according to a third embodiment of the present invention.
FIG. 8 is a perspective view of a permanent rod according to the fourth embodiment of the present invention.
FIG. 9 is a side view of a main part of a cap portion of a permanent rod according to a fourth embodiment of the present invention.
FIG. 10 is a longitudinal sectional view of a rod portion of a permanent rod according to a fifth embodiment of the present invention.
[Explanation of symbols]
1 Permanent rod
2 Cap part
3 Lid
4 Rubber stopper
5 external fitting part
6 Rod part
7,7a Elastic hollow body
8,8a Skin layer
9, 9a Core material
10 Permanent paper
11 Hair bundle
11a hair
12 rubber bands
20a Cap part
20b Cap part
21 Fin
23 Core
22 Projection
31 Permanent rod according to the fourth embodiment
32 Cap part
33 Anti-slip part
34 Outer fitting
35 recess
36 Insertion hole
36a Single pin guide
37 recess

Claims (10)

Low-foamed hollow synthetic rubber having a skin layer on the surface, an elastic hollow body made of a thermoplastic elastomer or a soft synthetic resin, and a hollow or solid state inserted into and fixed to the hollow portion of the elastic hollow body A core part made of synthetic resin or made of wood, etc., and a rod part,
A cylinder part, a rubber stopper formed by cutting into one end of the cylinder part in an uneven shape, an outer fitting part that externally fits the end of the rod part to the other end of the cylinder part, and the rubber stopper A cap portion that is formed in a wall shape between the outer fitting portion and the end portion of the rod portion, and a cap portion provided at both ends of the rod portion ,
A permanent rod characterized by comprising: The synthetic rubber is butadiene rubber (BR), styrene-butadiene rubber (SBR), isoprene rubber (IR), ethylene-propylene rubber (EPM), butyl rubber (IIR), chloroprene rubber (CR), nitrile rubber (NBR), Acrylic rubber (ACM, ANM), Urethane rubber (U), Silicone rubber (Q), Fluorine rubber (FPM), Vulcanized rubber, Polyether rubber (POR, CHR, CHC), Chlorosulfonated polyethylene (CSM), Poly The permanent rod according to claim 1, wherein the permanent rod is one or more of epichlorohydrin or a composite of these and a filler. The thermoplastic elastomer has hard chain thermoplasticity such as stereoblock polypropylene, 1,2-polybutadiene, ionomer such as polyolefin having ion clusters, polystyrene, polyurethane, olefin (TPO), polyester, polyamide, etc. One or more of a block polymer, a graft polymer such as polyethylene or fluororesin, a nitrile rubber-polyvinyl chloride copolymer, a dynamic vulcanization type thermoplastic elastomer (TPV), or a composite of these and the filler The permanent rod according to claim 1, wherein the permanent rod is formed of a material. The cap portion, the fingertip sliding stopper portion consisting of concave and convex portion and the small hole or the like formed on the surface of the tubular portion, and / or, erected on the inner wall of the outer fitting portion for fixing cut in the elastic hollow body 1 The permanent rod according to any one of claims 1 to 3, further comprising the fin portion described above. The skin layer of the elastic hollow body has a thickness of 2 µm to 1000 µm, preferably 20 µm to 800 µm, more preferably 50 µm to 500 µm, according to any one of claims 1 to 4. Permanent rod. The elastic hollow body is foamed at a foaming ratio of 1.5 to 5 times, preferably 1.8 to 3.5 times, and is formed of closed cells, and has a Shore hardness of 20 ° to 80 °, preferably 20 °. The permanent rod according to any one of claims 1 to 5, wherein the permanent rod is -55 °. The core material is a tubular body or rod-shaped body formed of polyolefin such as polyethylene, polypropylene, polystyrene, or a polyolefin-based copolymer, and its outer diameter is 5/7 to 1 / of the cross-sectional diameter of the rod portion. 5, preferably 2/3 to 1/4, and the outer diameter of the core material is 1.5 to 25%, preferably 2 to 20% larger than the inner diameter of the hollow portion of the elastic hollow body. The permanent rod according to any one of claims 1 to 6, wherein the permanent rod is provided. It has a protrusion that is formed in a convex shape in the center on the outer fitting part side of the lid part and is fitted by fitting the end part of the core material inside or outside, and the core material is polyethylene, polypropylene, polystyrene, etc. The outer diameter is 5/7 to 1/5, preferably 2/3 to 1/4 of the cross-sectional diameter of the rod portion. And the outer diameter of the core material is 0.5 to 1.1 times, preferably 0.8 to 1.05 times the inner diameter of the hollow portion of the elastic hollow body. The permanent rod according to any one of claims 1 to 6, characterized in that: The cap portion is pierced at a symmetrical position of the cap portion wall between the rubber stopper and the lid portion, and / or an anti-slip portion formed by knurling or uneven portions on the outer peripheral wall of the lid portion. The permanent rod according to any one of claims 1 to 8, further comprising an insertion hole for a pin such as a single pin or an American pin. The permanent rod according to any one of claims 1 to 9, further comprising a concave portion formed by being cut parallel to a length direction on an outer surface of the elastic hollow body.

Images