KR102340638B1 - Improved magnetic patch and process for preparing the same - Google Patents

Abstract

The present invention relates to an improved magnetic patch and a method for manufacturing the same, and in more detail, an improved functional magnetic patch which provides a function of relieving increased pain while keeping a cool feeling for a long time, can be conveniently used, and does not cause separation and skin troubles of attachments, a patch, and a method for manufacturing the same. An improved functional magnetic patch according to the present invention provides a function of relieving increased pain while keeping a cool feeing for a long time, can be conveniently used, and does not cause separation and skin troubles of attachments even after long time attachment, thereby being efficiently used by users.

Description

Improved magnetic patch and process for preparing the same

The present invention relates to an improved magnetic patch and a method for manufacturing the same, and more particularly, provides a function of relieving increased pain while maintaining a cool feeling for a long time, and is convenient to use and detaches of attachment even after long-term attachment And it relates to an improved functional skin-attachable magnetic patch and patch that does not cause skin trouble, and a method for manufacturing the same.

The magnetic force of the magnet itself has a pain-relieving function, and by adding an analgesic active ingredient such as methyl salicylate, it not only provides an increased pain-relief function, but also provides light efficacy through prolonged contact with the human body. Appliances can include a variety of items from accessories such as bracelets and necklaces to electronic devices such as massagers, and it is possible to provide a more direct and stronger effect than clothing.

In particular, among these devices, a patch is one of the health supplements that can provide the advantages of clothing in contact with the human body for a long time in addition to the advantages of the device. It can provide efficacy just by attaching it or attaching it.

It is common that such a patch contains various functional materials, and a material that gives a feeling of coolness, such as oriental medicine or methyl salicylate, is often contained in a body made of pulp.

However, in this case, the health assistance means can be used only for one-time use, and various problems such as spots or fever can be caused depending on the user's constitution or skin sensitivity.

Accordingly, there is a demand for a health support means in the form of a patch including a material that provides a health support function without being directly absorbed into the skin in a state where the body is made of a material having appropriate elasticity, such as silicone or rubber.

As a prior art for such a patch-type health assistance means, Korean Utility Model No. 20-0487759 (title of the invention: functional health silicone patch) is known.

In the prior art, a patch body is made of a soft silicon material containing powdered germanium, copper oxide, and nano-ceramic particles, and a plurality of magnets are provided inside the patch body over the entire surface of the patch body. As a functional health silicone patch, but forming an adhesive layer on one side of the patch body, the adhesive layer is a functional health silicone patch, characterized in that it comprises powdered germanium, copper oxide and nano-ceramic particles in the adhesive component. is presenting

According to this prior art, it is possible to restore the user's fatigue by including a material that can provide a health support function, such as germanium, in a silicon patch, but this is a result of recombining materials that have been previously applied to health supplements. can be just

Therefore, in the modern industrial society, there is a growing need for a body-attached patch-type stimulation device that can be easily used by users with various diseases, and that can achieve the above medical effects without skin troubles.

Korea Registration No. 10-0353613 (September 09, 2002) Korea Registration No. 10-1353478 (January 14, 2014) Korea Registration No. 10-1834794 (February 27, 2018)

The present inventors improve the problems according to the prior art, as well as provide a function of relieving the increased pain while maintaining a cool feeling for a long time, and are convenient to use and cause detachment of attachments and skin troubles even after long-term attachment As a result of intensive research to develop a functional magnetic patch that does not do this, it was found that a skin-attached magnetic patch as described below can satisfy the above requirements, and the present invention has been completed.

Therefore, it is an object of the present invention to provide a function of relieving increased pain while maintaining a cool feeling for a long period of time, as well as being convenient to use and functional skin-attached magnetic patch that does not cause detachment of attachments and skin troubles even after long-term attachment and to provide a method for producing the same.

The above object of the present invention is

an upper impermeable support layer 10;

a pressure-sensitive adhesive layer 20 positioned under the support layer 10;

an aluminum composite cap 30 attached to a lower portion of the pressure-sensitive adhesive layer 20 and having a permanent magnet 40 attached therein;

a release layer 50 that is attached to the lower portion of the pressure-sensitive adhesive layer 20 and peels off during use; and

and a release film layer 60 that protects the skin-contacting part 33 of the aluminum composite cap 30;

The permanent magnet 40 has a magnet density of 80 to 800 Gauss ±30%, and is composed of 85 to 95% by weight of strontium ferrite powder, 5 to 15% by weight of polyethylene chloride, and 0 to 1% by weight of calcium stearate. It can be achieved by a skin-attachable magnetic patch and a method for manufacturing the same.

The functional magnetic patch according to the present invention provides a function of relieving increased pain while maintaining a cool feeling for a long time, and it is convenient to use and does not cause detachment of attachments and skin troubles even after long-term attachment, so that users can efficiently Available.

1 is a photograph showing the front surface of the skin-attachable magnetic patch according to the present invention.
2 is a photograph showing the rear surface of the skin-attachable magnetic patch according to the present invention.
3 is a photograph showing the structure and shape of the aluminum composite cap and the magnet of the skin-attached magnetic patch according to the present invention.
4 is a photograph illustrating the attachment state of the aluminum composite cap of the skin-attached magnetic patch according to the present invention to the support.
5 is a view for explaining the layer structure of the skin-attached magnetic patch according to the present invention.
6 is a manufacturing process diagram of a skin-attached magnetic patch according to the present invention.

The present invention, in one aspect,

an upper impermeable support layer 10;

a pressure-sensitive adhesive layer 20 positioned under the support layer 10;

an aluminum composite cap 30 attached to a lower portion of the pressure-sensitive adhesive layer 20 and having a permanent magnet 40 attached therein; and

a release layer 50 that is attached to the lower portion of the pressure-sensitive adhesive layer 20 and peels off during use;

and a release film layer 60 that protects the skin-contacting part 33 of the aluminum composite cap 30;

The permanent magnet 40 has a magnet density of 80 to 800 Gauss ±30%, and is composed of 85 to 95% by weight of strontium ferrite powder, 5 to 15% by weight of polyethylene chloride, and 0 to 1% by weight of calcium stearate. Provides skin-attachable magnetic patches.

The present invention, in a further aspect,

(a) manufacturing a disk-shaped permanent magnet 40;

(b) separately manufacturing a grooved aluminum composite cap 30 for accommodating the permanent magnet 40;

(c) adhering and accommodating a disk-shaped permanent magnet 40 in the groove formed in the aluminum composite cap 30;

(d) applying a pressure-sensitive adhesive layer 20 to the lower surface of the upper impermeable support layer 10;

(e) removing the cut line after laminating the release layer 50 having a circular cut line larger than the diameter of the aluminum composite cap 30 and the impermeable support layer 10;

(f) adhering the aluminum composite cap 30 in which the permanent magnet 40 is adhesively accommodated to the exposed surface of the adhesive layer 20 from which the circular cutting line is removed;

(g) attaching the release film layer 60 to the skin contact portion 33 of the aluminum composite cap 30 to complete the patch;

(h) an inspection step to check whether there is any abnormality in the finished patch product; and

(i) a packaging step of packaging the inspected product in a predetermined unit; provides a method for manufacturing a skin-attached magnetic patch comprising the.

Hereinafter, with reference to the accompanying drawings and specific examples, it will be described in more detail with respect to the skin-attached magnetic patch and its manufacturing method according to the present invention.

The terms or words used in the present specification and claims are not to be construed as limited in their ordinary or dictionary meanings, and on the principle that the inventor can appropriately define the concept of the term in order to best describe his invention. It should be interpreted as meaning and concept consistent with the technical idea of the present invention.

Therefore, since the embodiments described herein and the configurations shown in the drawings are only the most preferred embodiment of the present invention, it is understood that there may be various equivalents and modifications that can be substituted for them at the time of the present application. shall.

1 is a photograph showing the front surface of the skin-attached magnetic patch according to the present invention, FIG. 2 is a photograph showing the rear surface of the skin-attached magnetic patch according to the present invention, and FIG. 3 is a skin-attached magnetic patch according to the present invention. is a photograph showing the structure and shape of the aluminum composite cap and the magnet, Figure 4 is a photograph explaining the attachment state of the aluminum composite cap of the skin-attached magnetic patch according to the present invention to the support, Figure 5 is according to the present invention It is a view for explaining the layer structure of the skin-attached magnetic patch, Figure 6 is a manufacturing process diagram of the skin-attached magnetic patch according to the present invention.

1 to 5, the skin-attached magnetic patch according to the present invention is a device used by attaching to the skin for the purpose of relieving muscle pain in the human body using a magnetic field of a permanent magnet, and is composed of a permanent magnet and a patch. , it is possible for users to use it efficiently by manufacturing it in various shapes, and although not limited thereto, it can be described by dividing it into a single ball type (type) and a band type (type) for easy explanation.

The single ball type is a form in which an aluminum composite cap 30 to which a permanent magnet 40 is fixedly attached is adhered to the center of a circular impermeable support layer 10, and the diameter of the impermeable support layer 10 is about 2.5 cm may be preferable.

The band type is a form in which a plurality of permanent magnets 40 are attached in two rows at a predetermined distance to the impermeable support layer 10 with both ends protruding and made in one piece, and the length of the impermeable support layer 10 is About 19.5 cm may be preferable.

The skin-attached magnetic patch according to the present invention includes an upper impermeable support layer 10; a pressure-sensitive adhesive layer 20 positioned under the support layer 10; an aluminum composite cap 30 attached to a lower portion of the pressure-sensitive adhesive layer 20 and having a permanent magnet 40 attached therein; a release layer 50 that is attached to the lower portion of the pressure-sensitive adhesive layer 20 and peels off during use; and a release film layer 60 that protects the skin-contacting portion 33 of the aluminum composite cap 30 . Hereinafter, each component layer will be described in detail.

impermeable support layer (10)

The impermeable support layer 10 is not permeable to drugs and is made of a material having good moisture permeability and elasticity, for example, without being limited thereto, span nonwoven fabric, polyurethane or polyethylene film, etc. may be used.

The upper impermeable support layer 10 is not limited thereto, but it may be more preferable to have a circular shape or a rectangular shape with a protruding end.

pressure adhesive layer (20)

The pressure-sensitive adhesive layer is preferably made of a component that performs a function that does not cause detachment of attachments and skin troubles even when attached to the body for a long period of time.

The pressure-sensitive adhesive (layer) is acrylate copolymer (Cas No. 25085-02-3) 53-56 wt%, ethyl acetate (Cas no. 141-178-6) 24-26 wt%, vinyl acetate monomer (Cas) No. 108-05-4) 13 to 17% by weight and toluene (Cas No. 108-88-3) 3 to 6% by weight may be preferable.

Aluminum Composite Cap(30)

The aluminum composite cap 30 is a cap containing a permanent magnet 40, which presses a local area with muscle pain and emits electric potential and far infrared rays by metal ions, which are raised by cooperative action with the permanent magnet 40. It performs a pain relief function.

The diameter of the aluminum composite cap 30 may be preferably in the range of 10 mm±10%, and when viewed from the top surface, the base 31 is made in the form of a disk such as a coin, and the upper portion is inclined at a certain angle. 32 is formed, the upper part of the skin contact part 33 is formed flat with a certain diameter (eg, 0.3 mm), and the bottom surface has a groove 34 for accommodating the permanent magnet is formed in the center, and the groove ( 34) is preferably formed to be slightly larger than the diameter of the permanent magnet.

The aluminum composite cap 30 is 90 to 93% by weight of aluminum, 0.3 to 0.6% by weight of silicon, 0.3 to 0.6% by weight of iron, 3.80 to 4.90% by weight of copper, 0.20 to 0.30% by weight of zinc, 0.30 to 0.90% by weight of manganese, An alloy composition composed of 1.20 to 1.80 wt% of magnesium and 0.05 to 0.20% by weight of chromium is melted in a melting furnace at 1,600 to 1,800°C according to a conventional alloy manufacturing method, and then hot forged into a rod shape of 10±10% mm at room temperature. After air cooling to , this alloy rod is molded using a Roguro machine to have the shape shown in FIG. 3, and it is more preferable to use an oxidized product by anodizing the molded cap with a known sulfuric acid method. can

If the composition of the aluminum composite cap is out of the above range, there is a problem in that the pain relief function is weak or it is difficult to expect the increased pain relief function with the permanent magnet 40 .

Permanent Magnet(40)

The permanent magnet 40 is in direct or indirect contact with the human body and generates a magnetic field to relieve muscle pain.

In the treatment method by magnetic force, when magnetic force is applied to the human body, a new magnetic induction is generated, an induced current is generated in the blood, and it becomes a physical catalyst to exchange kinetic energy, and ions ( Ion) increases, resulting in a change in autonomic nerve activity. In addition, the supply of oxygen and nutrients to the tissues is activated by the blood, and at the same time, carbon dioxide gas or wastes are excreted out of the body, and peripheral nerve circulation is improved. It has been clinically proven that magnetic force is harmless to the human body and relieves pain while acting to relieve headaches, stiff shoulders, and back pain in each part of the human body.

The permanent magnet 40 is a ferrite-based metal, and may preferably have a weight of Φ3.2 x 1.3(t) mm, 0.3g, and a magnet density of 80 to 800 Gauss ± 30%, strontium ferrite powder (Cas no. 12023-91-5) 85-95 wt%, polyethylene chloride (Cas no. 64754-90-1) 5-15 wt% and calcium stearate, calcium stearate (Cas no. 1592-23) -0) It may be more preferable to consist of 0 to 1 wt%.

If the magnet density is out of the above range, there is a fear that the pain relief effect may be weak or side effects may occur.

release layer (50)

As a protective layer attached to the back surface of the pressure-sensitive adhesive layer 20 and peeled off during use, a general paper material may be used, but a gloss-treated or film-coated one may be used without limitation.

release film layer (60)

The release film layer 60 functions to protect the skin-contacting part 33 of the aluminum composite cap 30, and when used, it is carefully removed from the skin-contacting part 33 of the aluminum composite cap 30 and used, A suitable material may be a polyester film.

drug delivery layer

According to a further embodiment of the present invention, it may be more preferable that the skin-attachable magnetic patch contains an active ingredient that maintains a cooling sensation and a skin permeation promoter in the pressure-sensitive adhesive 20 layer.

Therefore, it can be replaced with a drug delivery layer instead of the pressure-sensitive adhesive layer 20, and this drug delivery layer includes 100 parts by weight of the pressure-sensitive adhesive layer 20, 5 to 20 parts by weight of an active ingredient providing a feeling of cooling, and skin permeability. It may be desirable to include 2 to 10 parts by weight of an accelerator.

Examples of the active ingredients for maintaining the cooling sensation and relieving pain include menthol, menthyl lactate, other menthol derivatives, peppermint oil, and the like.

Ingredients that relieve inflammation include glycol salicylate, methyl salicylate, indomethacin, ibuprofen, ketoprofen, flurbiprofen, pelbinac, piroxicam, camphor, diphenhydramine, and glycyrrhizic acid. can

The skin penetration enhancer is used to control the rate of penetration of the active ingredient, preferably N-cyclohexyl-2-pyrrolidone, 1-butyl-3-dodecyl- 2-pyrrolidone (1-butyl-3-dodecyl-2-pyrrolidone), 1,5-dimethyl-2-pyrrolidone (1,5-dimethyl-2-pyrrolidone), 1-ethyl-2-pyrrolidone Don (1-ethyl-2-pyrrolidone), 1-hexyl-4-methyloxycarbonyl-2-pyrrolidone (1-hexyl4-methyloxycarbonyl-2-pyrrolidone), 1-hexyl-2-pyrrolidone (1 -hexyl-2-pyrrolidone), 1- (2-hydroxyethyl) pyrrolidone (1- (2-hydroxyethyl) pyrrolidone), 3-hydroxy-N-methyl-2-pyrrolidone (3-hydroxy- N-methyl-2-pyrrolidone), N-methyl-2-pyrrolidone (N-methyl-2-pyrrolidone), N-caprylyl-2-pyrrolidone (N-carprylyl-2-pyrrolidone), glycerol glycerol lauryl alcohol, oleylalcohol, isopropyl myristrate, sorbitan mono-oleate, propylene monolaurate, propylene monooleate (propylene mono-oleate), oleyl macrogolglyceride, oleic acid, lauroyl macrogoglyceride, linoleoyl macrogoglyceride, propylene glycol Propylene glycol caprylate/caprate, Sorbitan monostearate mono-oleate, Glycerol monolaurate (gl ycerol monolaurate, propylene glycol monolaurate, propylene glycol monocaprylate, sorbitan monolaurate, lauryl lactate, caprylic/ caprylic/capric triglyceride, corn oil PEG-8 ester, corn oil PEG-6 ester, triacetin, fatty alcohol, sorbitan monooleate, n,n-diethyl-m-toluamide, It can be added by selecting from myristic acid, N-methyl-2-pyrrolidone and cineol.

In addition, it may be preferable to contain a solvent that can also be used as a penetration enhancer, and a suitable solvent for this is diethyltol, which has excellent drug solubility and has a high boiling point, which does not volatilize well when drying after coating. It is preferable to use luamide, dimethylformamide, dimethyl sulfoxide, or the like.

The manufacturing method of the skin-attached magnetic patch according to the present invention is largely as shown in FIG. 6 , a permanent magnet manufacturing step, an aluminum composite cap manufacturing step, a permanent magnet bonding step, an adhesive application step, a laminating step, a cutting line removal step, an aluminum composite cap It consists of an adhesion step, a release film layer attaching step, an inspection step, and a packaging step. The steps for each subject are described in detail below.

(a) Permanent magnet manufacturing step

A cylindrical or disk-shaped permanent magnet 40 of a size accommodated in the groove 34 formed in the aluminum composite cap 30 is mixed with the above-mentioned raw materials and dried to prepare a disk-shaped one.

(b) manufacturing the aluminum composite cap 30

Separately, an aluminum composite cap 30 having grooves 34 for accommodating the permanent magnets 40 is manufactured.

The aluminum composite cap 30 is a rod manufactured by dissolving the alloy composition containing aluminum in a melting furnace of 1,600 to 1,800° C. according to a conventional manufacturing method, then hot forging into a rod shape of 10±10% mm, and then air cooling to room temperature. It can be manufactured using

Then, b1) an alloy rod made of an aluminum composite is cut to have a diameter of 10 mm, and b2) is formed into a cap having a predetermined size and shape using a composite CNC automatic lathe.

This process is also called roguro molding, in which a rod is fixed and rotated while cutting the material at the manufacturing site.

Then, and b3) it is more preferable to oxidize the molded cap by anodizing by a conventional method such as a sulfuric acid method.

(c) permanent magnet bonding step

The disk-shaped permanent magnet 40 is adhered to the groove 34 formed in the aluminum composite cap 30 using an adhesive such as epoxy, and accommodated therein.

(d) pressure-sensitive adhesive application step

A pressure-sensitive adhesive layer 20 or a drug delivery layer is applied to an appropriate thickness on the lower surface of the upper impermeable support layer 10 .

(e) lamination step

After laminating the release layer 50 on which a circular cut line larger than the diameter of the aluminum composite cap 30 is formed and the pressure-sensitive adhesive layer 20 of the impermeable support layer 10, the cut line is removed.

(f) aluminum composite cap adhesion step

The aluminum composite cap 30 in which the permanent magnet 40 is adhesively accommodated is adhered to the exposed surface of the adhesive layer 20 from which the circular cut line is removed.

(g) step of attaching the release film layer

The patch is completed by attaching the release film layer 60 to the skin-contacting part 33 of the aluminum composite cap 30 .

(h) Inspection stage

As an inspection step to check whether the finished patch product is abnormal, check the appearance and damage of the finished product, check whether the physical characteristics conform to the regulations, and prepare for packaging.

(i) packaging step

The inspected product is packaged in a certain unit using a conventional method. In addition, it may be desirable to put a certain amount of the product in an aluminum pack or nylon paper, a plywood pack or a PET resin container and seal it.

The skin-attachable functional magnetic patch according to the present invention, as described above, is used after confirming by pressing the area around painful or uncomfortable areas such as shoulders or back with a finger, and long-term use is not recommended for allergic or sensitive skin, When not in use, avoid moisture and direct sunlight, and store and store in a well-ventilated place before use.

<Example>

Hereinafter, the present invention will be described in more detail through examples. These examples are only for illustrating the present invention in more detail, and it will be apparent to those skilled in the art that the scope of the present invention is not limited by these examples according to the gist of the present invention. .

Example 1: Preparation of a skin-attachable magnetic patch

A disk-shaped permanent magnet 40 (manufacturer: Earth Magnet Co., Ltd., Goyang-si, Gyeonggi-do) having a weight of Φ3.2 x 1.3(t) mm and 0.3 g is placed in the groove 34 formed in the aluminum composite cap 30 Adhesive using an epoxy adhesive, separately formed by applying a pressure-sensitive adhesive layer 20 to a thickness of 0.03 mm on the lower surface of an impermeable support layer (10, diameter 2.5 cm) made of a spandex nonwoven material, and having a diameter of about 11 mm After laminating the vinyl-coated release paper on which the cut line was formed and the impermeable support layer 10, the cut line was removed. An aluminum composite cap (30, diameter 10 mm) in which the permanent magnet 40 is adhesively accommodated is adhered to the exposed surface of the adhesive layer 20 from which the cut line is removed, and released to the skin-contacting part 33 of the aluminum composite cap 30 The patch was completed by attaching the film layer 60 , and the appearance and the presence or absence of damage of the finished product were checked, and then packaged.

The pressure-sensitive adhesive is composed of 55% by weight of an acrylate copolymer, 25% by weight of ethyl acetate, 15% by weight of a vinyl acetate monomer, and 5% by weight of toluene (Cas no. 35239-19-1, Gimpo, Gyeonggi-do, manufactured by Hansung Polytech) was used.

The aluminum composite cap 30 is composed of 91 wt% Al, 0.5 wt% silicon, 0.5 wt% iron, 4.90 wt% copper, 0.25 wt% zinc, 0.90 wt% manganese, 1.80 wt% magnesium, and 0.15 wt% chromium. After dissolving the alloy composition in a melting furnace at 1,600 ~ 1,900℃ according to a conventional alloy manufacturing method, hot forging into a rod shape of 10±10% mm, air cooling to room temperature, and manufacturing an alloy rod, this alloy rod is shown in FIG. It was molded into a rod to have the shape of a bar, and the molded cap was oxidized by anodizing using a known sulfuric acid method.

Example 2: Preparation of magnetic patch loaded with active ingredient

A magnetic patch was prepared using a drug delivery layer instead of the pressure-sensitive adhesive of Example 1. The drug delivery layer is 100 parts by weight of the pressure-sensitive adhesive layer 20 of Example 1, 5 parts by weight of menthol, an active ingredient that provides a feeling of cooling, 5 parts by weight of methyl salicylate, and caprylic/capric triglyceride (caprylic/capric triglyceride) triglyceride) 5 parts by weight.

Test Example 1: Sensory evaluation

The sensory test for the skin-attached magnetic patch according to Example 2 was performed by selecting 30 sensory test personnel with sensory identification ability and attaching the magnetic patch. , 6 points: good, 5 points: slightly good, 4 points: average, 3 points: slightly bad, 2 points: bad, 1 point: very bad).

As sensory test items, three sensory items were evaluated: pain relief, occurrence of skin troubles, and refreshing feeling. The results verified the significant difference between each sample by Duncan's multiple range test at 5% level using ANOVA.

The results are shown in Table 1 (mean value ± standard deviation) below. As a comparative product, a commercially available product was used.

Item Example 2 comparative example pain relief 6.35±0.71 4.21±0.36 Whether skin troubles occur 6.76±0.42 4.16±0.21 refreshment 6.45±0.36 4.03±0.66 overall sign 6.53±0.30 4.12±0.46

As a result, the product of Example 2 showed remarkably excellent results in all items.

Clinical Example 1:

As a result of treatment using the magnetic patch prepared by the method according to Example 1 of the present invention for a patient with low back pain, it was confirmed that the symptoms of back pain disappeared after a week.

The present invention described above is not limited by the above-described embodiments and the accompanying drawings, and it is common in the technical field to which the present invention pertains that substitutions, modifications and transformations are possible within the scope without departing from the technical spirit of the present invention. It will be clear to those who have knowledge.

10: support layer
20: pressure-sensitive adhesive layer
30: aluminum composite cap
40: permanent magnet
50: release layer
60: release film layer

Claims (6)

an upper impermeable support layer 10;
a pressure-sensitive adhesive layer 20 positioned under the support layer 10;
an aluminum composite cap 30 attached to a lower portion of the pressure-sensitive adhesive layer 20 and having a permanent magnet 40 attached therein;
a release layer 50 that is attached to the lower portion of the pressure-sensitive adhesive layer 20 and peels off during use; and
and a release film layer 60 that protects the skin-contacting part 33 of the aluminum composite cap 30;
The permanent magnet 40 has a magnet density of 80 to 800 Gauss ± 30%, and is composed of 85 to 95% by weight of strontium ferrite powder, 5 to 15% by weight of polyethylene chloride, and 0 to 1% by weight of calcium stearate,
The aluminum composite cap 30 has a diameter of 10 mm±10%, and when viewed from the top surface, the base 31 is made in the form of a disk like a coin, and an inclined portion 32 of a certain angle is formed on it. In the upper part, the skin contact part 33 is formed flat with a certain diameter, and on the bottom surface a groove 34 for accommodating the permanent magnet is formed in the center, and the groove is larger than the diameter of the permanent magnet,
The aluminum composite cap 30 is composed of 91 wt% Al, 0.5 wt% silicon, 0.5 wt% iron, 4.90 wt% copper, 0.25 wt% zinc, 0.90 wt% manganese, 1.80 wt% magnesium, and 0.15 wt% chromium. After dissolving the alloy composition in a melting furnace at 1,600~1,800℃, hot forging into a rod shape of 10±10% mm, air cooling to room temperature, forming the alloy rod into a cap using a furnace machine, and forming the molded cap with a sulfuric acid method It is produced by oxidation by anodizing with
The pressure-sensitive adhesive is a skin-attachable magnetic patch, characterized in that consisting of 53 to 56% by weight of an acrylate copolymer, 24 to 26% by weight of ethyl acetate, 13 to 17% by weight of a vinyl acetate monomer, and 3 to 6% by weight of toluene. delete delete delete (a) manufacturing a disk-shaped permanent magnet 40;
(b) separately manufacturing a grooved aluminum composite cap 30 for accommodating the permanent magnet 40;
(c) adhering and accommodating a disk-shaped permanent magnet 40 in a groove formed in the aluminum composite cap 30;
(d) applying a pressure-sensitive adhesive layer 20 to the lower surface of the upper impermeable support layer 10;
(e) the release layer 50 on which a circular cut line larger than the diameter of the aluminum composite cap 30 is formed and the pressure-sensitive adhesive layer 20 of the impermeable support layer 10 are laminated, and then cut removing;
(f) adhering the aluminum composite cap 30 in which the permanent magnet 40 is adhesively accommodated to the exposed surface of the adhesive layer 20 from which the circular cut line is removed;
(g) attaching the release film layer 60 to the skin contact portion 33 of the aluminum composite cap 30 to complete the patch;
(h) an inspection step to check whether there is any abnormality in the finished patch product; and
(i) a packaging step of packaging the inspected product in a certain unit;
The aluminum composite cap 30 is
b1) manufacturing an alloy rod made of an aluminum composite to have a diameter of 10 mm;
b2) forming a cap having a predetermined size and shape using a complex CNC automatic lathe; and
b3) oxidizing the molded cap by anodizing; delete

Images