JP5843386B2 - Manufacturing method of medical outer garment - Google Patents

Description

The present invention relates primarily manufacturing method of a medical out garments for use in surgery, a method of manufacturing a superior medical out garments in washing resistance

  Conventionally, a moisture-permeable waterproof clothing product used for skiing, mountain climbing, etc. is sewn using a moisture-permeable waterproof fabric, and a moisture-permeable waterproof seam tape is attached to the seam. Patent Document 1). In patent document 1, the moisture-permeable waterproof seam tape is proposed as what can be applied to any moisture-permeable waterproof clothing product.

  Moisture-permeable and waterproof clothing products are used not only for skiing and mountain climbing, but also for medical outerwear. That is, the medical outer garment used for the operation is to prevent the blood, bacteria, or virus of the patient from adhering to the inside, and the sweat of the wearer such as a doctor or nurse is exposed to the outside. It is sewn using a moisture-permeable and waterproof fabric so that it can diffuse well. And the moisture-permeable waterproof seam tape is affixed on the seam of the medical outer garment similarly to the conventional moisture-permeable waterproof clothing product.

JP 2008-255267 A

  In the case of a medical outer garment, what is different from a moisture-permeable waterproof clothing product used for skiing, mountain climbing, etc. is that washing and sterilization are repeated every day. Accordingly, an object of the present invention is to provide a medical outer garment excellent in washing durability and sterilization durability.

  When washing and sterilization are repeated daily on the outer garment for medical use, the seam tape adhered to the fabric is peeled off and the waterproof performance at the seam portion is lowered. Therefore, in order to obtain a medical outer garment excellent in washing durability and sterilization durability, it is necessary to increase the adhesive strength between the seam tape and the fabric.

  However, simply increasing the adhesive strength does not always provide sufficient washing durability and sterilization durability. That is, even if the adhesive strength is increased, particularly when the external force applied between the seam tape and the fabric during washing is high, the external force is not resisted and the film peels off.

The present invention solves the above-mentioned problems by improving the adhesive strength and devising so that an excessive external force is not easily applied between the seam tape and the fabric during washing. Specifically, a specific adhesive is used as an adhesive between the seam tape and the fabric, and the structure of the seam tape and the fabric is approximated so that differences in rigidity and the like are unlikely to occur. It made it difficult for excessive external force to be applied. That is, the present invention is outer material, adhesives, moisture-permeable waterproof membrane, sewn fabric formed by laminating integrally in the order of the adhesive and backing, and method for producing a medical out garments of attaching a seam tape seams The seam tape is formed by laminating and integrating a heat-sensitive adhesive mainly composed of a polycarbonate polyurethane resin, a moisture-permeable waterproof film, an adhesive, and a base fabric in this order. Are all polyester fabrics, and any of the above-mentioned adhesives is an adhesive mainly composed of a polycarbonate-based polyurethane resin, and any of the above-described moisture-permeable waterproof films is a polyurethane film mainly composed of a polycarbonate-based polyurethane resin. , and the by melting and solidifying the heat-sensitive adhesive, manufacturing of medical out garments, characterized by attaching the seam tape on the outer material surface The method relates.

Further, the present invention is applied not only to the case of a seam tape but also to a repair patch used for repairing a damaged portion of a medical outer garment. That is, the present invention relates to a method for manufacturing a medical outer garment in which a repair patch is attached to a damaged portion of a fabric formed by laminating and integrating a surface material, an adhesive, a moisture permeable waterproof film, an adhesive, and a lining in this order. The patch is a laminate of the heat-sensitive adhesive mainly composed of polycarbonate-based polyurethane resin, moisture permeable waterproof membrane, adhesive and base fabric in this order. Polyester fabric, any of the adhesives described above is an adhesive mainly composed of a polycarbonate-based polyurethane resin, and any of the moisture-permeable waterproof films described above is a polyurethane film mainly composed of a polycarbonate-based polyurethane resin, by melting and solidifying a heat-sensitive adhesive, a method of manufacturing a medical out garments, which comprises adhering the repair patch to the outer material surface Than is.
Since the seam tape and the repair patch are the same as the layer structure except for the shape and application location, the seam tape will be mainly described below.

  First, the fabric used in the present invention will be described. This fabric is formed by laminating and integrating the outer fabric 1, the adhesive 2, the moisture permeable waterproof membrane 3, the adhesive 4 and the backing 5 in this order. As the outer material 1, a polyester fabric is used. Specifically, a knitted fabric using polyester multifilament yarn or a nonwoven fabric made of polyester fiber is used. The reason why polyester (polyethylene terephthalate) is used is that it has good durability against high-pressure moist heat sterilization applied to medical outerwear. Of course, cotton or rayon may be mixed as long as the durability of the polyester is not impaired. Also for the lining 5, a polyester fabric is used for the same reason. Moreover, the surface 1 and the lining 5 may be subjected to water repellent treatment by a conventionally known method. By performing the water repellent treatment, the waterproof performance is improved.

  Adhesives 2 and 4 are adhesives mainly composed of a polycarbonate-based polyurethane resin. Generally, an adhesive that crosslinks a polycarbonate-based polyurethane polyol with an isocyanate-based crosslinking agent such as diphenylmethane diisocyanate is used. This is because the durability is improved by crosslinking and curing. The adhesives 2 and 4 may be provided on the entire surface, but are generally provided in the form of dots so as not to impede the moisture permeability of the fabric. The reason why the polycarbonate-based polyurethane resin is used is that it has good durability against sterilization treatment (high-pressure moist heat sterilization) applied to a medical outer garment. Adhesives 2 and 4 may be mixed with other polyurethane resins as well as polycarbonate polyurethane resins. As other polyurethane resins, known polyether polyurethane resins, polyester polyurethane resins or polyether ester polyurethane resins are used.

  The moisture permeable waterproof film 3 is a polyurethane film mainly composed of a polycarbonate-based polyurethane resin. Generally, a polyurethane film of a type that increases the molecular weight of a polycarbonate-based polyurethane prepolymer is used. The reason why the polycarbonate-based polyurethane resin is used is that it has good durability against sterilization treatment (high-pressure moist heat sterilization). Therefore, the polyurethane film may be mixed with not only the polycarbonate-based polyurethane resin but also other polyurethane resins described above. The moisture-permeable waterproof membrane 3 can be obtained by a conventionally known method, for example, by applying a polycarbonate-based polyurethane resin solution dissolved in a solvent to the release paper surface and evaporating the solvent. The thickness of the moisture permeable waterproof membrane 3 is generally about 5 to 30 μm, preferably 7 to 20 μm. If it is less than 5 μm, there is a difficulty in waterproof durability, and even if it has a thickness exceeding 30 μm, it has only excessive waterproofness, and conversely, it tends to cause problems in moisture permeability, texture and cost.

  The seam tape or repair patch is formed by laminating and integrating a heat-sensitive adhesive 6 mainly composed of a polycarbonate-based polyurethane resin, a moisture-permeable waterproof film 7, an adhesive 8 and a base fabric 9 in this order. The heat-sensitive adhesive 6 is mainly composed of a thermoplastic polycarbonate-based polyurethane resin. The heat-sensitive adhesive 6 is laminated and integrated directly on the moisture-permeable waterproof film 7 by an extrusion laminating method, or a polycarbonate-based polyurethane resin dissolved in a solvent is separated. After a resin layer is formed on the pattern paper by a known means, it is bonded to the moisture permeable waterproof membrane 7 and laminated and integrated. The thickness of the heat sensitive adhesive 6 is 50 to 200 μm, preferably 60 to 150 μm. The heat-sensitive adhesive 6 mainly composed of a polycarbonate-based polyurethane resin is used for adhering to the seam 13 of the fabric 11 or the surface of the fabric 11, and therefore the one having a softening point of about 120 to 170 ° C. is used. preferable. The heat-sensitive adhesive 6 may be composed only of a polycarbonate-based polyurethane resin, but it is preferable to mix other polyester-based polyurethane resins or polyether-based polyurethane resins. That is, when a thermoplastic polyester polyurethane resin or the like having a softening point lower than that of the polycarbonate polyurethane resin is mixed and laminated on the moisture permeable waterproof film 7, other polyester polyurethane resins are integrated. When the seam tape or the repair patch is attached to the seam 13 of the fabric 11 or the surface of the fabric 11, it is preferable to soften and apply the thermoplastic polycarbonate polyurethane resin. In addition, since the outer fabric of the fabric 11 is a polyester fabric, it is preferable to use a polyester polyurethane resin.

  The moisture permeable waterproof membrane 7 is a polyurethane membrane mainly composed of a polycarbonate polyurethane resin. That is, the same thing as the moisture-permeable waterproof membrane 3 is used. The reason why the polycarbonate-based polyurethane resin is used is the same as in the case of the moisture-permeable waterproof membrane 3.

  The adhesive 8 is an adhesive mainly composed of a polycarbonate-based polyurethane resin. That is, the same adhesives 2 and 4 are used. The reason why the polycarbonate-based polyurethane resin is used is the same as that of the adhesives 2 and 4. Note that the adhesive 8 used for the seam tape or the repair patch may be provided on the entire surface or may be provided in a dot shape. This is because the seam tape or the repair patch is partially applied to the outer garment for medical use, and the moisture permeability of the seam tape or the repair patch may be hindered.

  The base fabric 9 is made of a polyester fabric. That is, the same material as the outer material 1 and the lining material 5 is used. The reason for using the polyester fabric is the same as in the case of the outer material 1 and the lining material 5.

  The fabric 11 is sewn and becomes an outer garment. What is necessary is just to form the seam 13 by sewing by a conventionally well-known method. In order to improve the waterproof performance of the seam 13, it is preferable to adopt a method by shoulder-shoulder stitch sewing or two-needle folding stitch as shown in FIG. 3. And the seam tape 12 is stuck so that the seam 13 may be covered completely from the surface 1 side of the seam 13. The seam tape 12 is attached by melting and solidifying the heat-sensitive adhesive 6 mainly composed of a polycarbonate-based polyurethane resin provided on the seam tape 12. As a result, the outer garment has excellent moisture permeability and waterproofness. In the case of a repair patch, the heat-sensitive adhesive 6 may be attached by melting and solidifying so as to cover the damaged portion of the medical outer garment.

The fabric and seam tape used in the method for manufacturing a medical outer garment according to the present invention are all laminated with a polyester fabric, an adhesive mainly composed of polycarbonate polyurethane resin, and a polyurethane film mainly composed of polycarbonate polyurethane resin. It is a united and integrated product. Accordingly, the fabric and the seam tape have the same rigidity, and an excessive external force is unlikely to be applied between the fabric and the seam tape particularly during washing. Therefore, the seam tape is hardly peeled off, and the washing durability is excellent. In addition, since all of the moisture-permeable waterproof membrane, the adhesive and the heat-sensitive adhesive are made mainly of polycarbonate-based polyurethane resin, the effect of excellent durability against sterilization treatment (high-pressure moist heat sterilization) is achieved. Play.

  Further, since the fabric and the seam tape have the same configuration and performance, there is no case that only the fabric is high performance or only the seam tape is high performance. That is, there is an effect that it is possible to prevent a part of the materials used in the medical outer garment from becoming excessive quality. Although the seam tape has been described as an example, the repair patch also has the same effect.

  EXAMPLES Hereinafter, although this invention is demonstrated based on an Example, this invention is not limited to an Example. The present invention is characterized in that the configuration of the fabric and the seam tape or the repair patch is the same so that an excessive external force is not applied to the application site of the fabric and the seam tape or the repair patch at the time of washing. Should be interpreted.

Example 1
[Dough preparation]
Polyethylene terephthalate multifilament yarn 56dtex / 96f was prepared as warp and weft, and a plain fabric with a warp density of 140 / 2.54 cm and a weft density of 110 / 2.54 cm was woven. After scouring and dyeing by a conventional method (Dystar Japan Co., Ltd., disperse dye “Dianix Blue UN-SE” 0.5% omf), 6% water dispersion of a fluorine-based water repellent emulsion shown in Formula 1 below The solution was applied by the padding method (pickup rate 40%), dried, and then heat treated at 170 ° C. for 40 seconds to obtain a water-repellent surface.
<Prescription 1>
Asahi Guard AG-E500D 60 parts by mass (Asahi Glass Co., Ltd., fluorine-based water repellent emulsion)
Meikanate WEB 10 parts by mass (manufactured by Meisei Chemical Industry Co., Ltd., block type isocyanate)
Isopropyl alcohol 10 parts by weight Water 920 parts by weight

Next, on the release surface of release paper ("EV130TPO" manufactured by Lintec Corporation), a resin solution of the following formulation 2 (solid content 22 mass%) is applied at a coating amount of 50 g / m ² with a comma coater, and then at 100 ° C. A moisture-permeable waterproof film having a thickness of about 12 μm was formed by drying for 3 minutes. Thereafter, an adhesive of the following prescription 3 (solid content: 45 mass%, viscosity: 3000 mPa · s / 25 ° C.) was applied onto the moisture permeable waterproof membrane with a dot-like gravure roll (dot diameter: 0.75 mm, 32 mesh, adhesion area: 88%). And a depth of 0.08 mm), the coating amount was applied to substantially the entire surface so as to be about 70 g / m ^2, and dried at 100 ° C. for 2 minutes to form an adhesive layer. Subsequently, the adhesive layer and the back surface of the outer material are laminated so that they are in contact with each other, and after bonding at a pressure of 250 kPa, the release paper is peeled off, and aging is performed at 40 ° C. for 3 days to obtain an outer material and an adhesive material. A laminate cloth was obtained by laminating and integrating the agent and the moisture permeable waterproof membrane in this order.
<Prescription 2>
Crisbon MP-120 100 parts by mass (manufactured by DIC Corporation, polycarbonate polyurethane resin having a solid content of 30% by mass)
Methyl ethyl ketone 30 parts by mass N, N-dimethylformamide 5 parts by mass <Prescription 3>
Rezamin UD8348 100 parts by mass (manufactured by Dainichi Seika Kogyo Co., Ltd., solid content 70% by mass, polycarbonate polyurethane adhesive)
Rezamin UD cross-linking agent 8 parts by mass (manufactured by Dainichi Seika Kogyo Co., Ltd., isocyanate resin with a solid content of 75% by mass)
1 part by mass of HI-101 (manufactured by Dainichi Seika Kogyo Co., Ltd., crosslinking accelerator)
Methyl ethyl ketone 20 parts by mass Toluene 20 parts by mass N, N-dimethylformamide 20 parts by mass

On the surface of the moisture-permeable waterproof membrane of the laminate cloth, using the adhesive of the prescription 3, with a dot-like gravure roll (dot diameter 0.75 mm, 32 mesh, adhesion area 88%, depth 0.05 mm) The coating amount was about 45 g / m ² and dried at 100 ° C. for 2 minutes to form an adhesive layer. Subsequently, the adhesive layer and the lining are laminated so that they are in contact with each other, bonded at a pressure of 250 kPa, and then subjected to aging at 40 ° C. for 3 days to obtain a surface material, an adhesive, a moisture-permeable waterproof membrane, and an adhesive. And the dough integrated and laminated in the order of the lining was obtained. The lining used was a knitted 28 gauge tricot fabric using polyethylene terephthalate filament yarn 28dtex / 7f and scoured by a normal method.

[Preparation of seam tape]
A 28-gauge tricot fabric was knitted using polyethylene terephthalate filament yarn 33 dtex / 24f, and scouring was performed by a conventional method to prepare a base fabric.
Next, the resin solution of the above formulation 2 was applied to the release surface of a release paper (“EV130TPO” manufactured by Lintec Corporation) with a comma coater at an application amount of 50 g / m ² and then dried at 100 ° C. for 3 minutes. Formed a moisture-permeable waterproof membrane having a thickness of about 12 μm. Thereafter, on the moisture permeable waterproof membrane, the adhesive amount of the above formulation 3 is applied to the entire surface with a dot-like gravure roll (dot diameter 0.75 mm, 32 mesh, adhesion area 88%, depth 0.1 mm). It apply | coated so that it might become about 90 g / m < ² >, and it dried at 100 degreeC * 3 minutes, and formed the adhesive bond layer. Subsequently, the adhesive layer and the back surface of the base fabric are laminated so that they are in contact with each other, and bonded at a pressure of 250 kPa. Then, the release paper is peeled off, and aging is performed at 40 ° C. for 3 days. Then, a laminated fabric in which the adhesive and the moisture-permeable waterproof membrane were laminated and integrated in this order was obtained.

On the other hand, a resin solution of the following prescription 6 (solid content 38 mass%, viscosity 7000 mPa · s / 25 ° C.) is applied to the release surface of a newly prepared release paper (“EV130TPO” manufactured by Lintec Corporation) with a comma coater. Was 210 g / m ² . Then, after drying at 70 ° C. for 3 minutes, subsequently, drying was performed at 100 ° C. for 2 minutes to form a heat-sensitive adhesive layer mainly composed of a thermoplastic polycarbonate polyurethane resin having a thickness of about 80 μm. The heat-sensitive adhesive was laminated so that the moisture permeable and waterproof membrane surface of the laminated fabric was in contact with it, and was bonded at a temperature of 130 ° C. and a pressure of 300 kPa. Thereafter, the release paper was peeled off to prepare a seam tape having a width of 20 mm.
<Prescription 6>
Seika Bond HS-370 40 parts by mass (manufactured by Dainichi Seika Kogyo Co., Ltd., polyester-based polyurethane resin having a softening point of 130 ° C. and a solid content of 40% by mass)
60 parts by weight of Seika Bond HS-540 (manufactured by Dainichi Seika Kogyo Co., Ltd., polycarbonate-based polyurethane resin having a softening point of 145 ° C. and a solid content of 50% by mass)
N, N-dimethylformamide 7 parts by weight Methyl ethyl ketone 15 parts by weight

[Creating medical outerwear]
The outer garment was sewn using cloth. The seam in the sewing is formed by shoulder-shoulder stitch sewing shown in FIG. As the sewing thread, polyester spun yarn of No. 20 was used. And the seam tape was stuck in the state shown in FIG. 3 in the location of the seam, and the medical outer garment was obtained. The seam tape was attached with a hot air machine (manufactured by Quinlight Electronics Co., Ltd.). The conditions of the hot air machine were a presser foot pressure of 490 kPa, a nozzle pressure of 98 kPa, a hot air temperature of 550 ° C., and a speed of 3 m / min.

Example 2
[Dough preparation]
In place of the formulation 2 of Example 1, the following formulation 7 (solid content 17% by mass, viscosity 4000 mPa · s / 25 ° C.) was used, and a moisture-permeable waterproof membrane having a thickness of about 10 μm was formed with a coating amount of 60 g / m ^2. The dough was prepared by the same method as in Example 1 except that.
<Prescription 7>
Rack skin U-390 100 parts by mass (manufactured by Seiko Kasei Co., Ltd., polyether carbonate polyurethane resin having a solid content of 20% by mass)
N, N-dimethylformamide 5 parts by weight Methyl ethyl ketone 15 parts by weight [Preparation of seam tape]
A seam tape having a width of 20 mm was prepared by the same method as in Example 1.
[Creating medical outerwear]
Using this fabric and seam tape, a medical outer garment was obtained in the same manner as in Example 1.

Example 3
[Dough preparation]
A dough was prepared by the same method as in Example 2.
[Preparation of seam tape]
A laminate fabric was obtained in the same manner as in Example 1.
On the other hand, a resin solution of the following prescription 8 (solid content 40 mass%, viscosity 7000 mPa · s / 25 ° C.) is applied to the release surface of a newly prepared release paper (“EV130TPO” manufactured by Lintec Corporation) with a comma coater. Was 250 g / m ² . Thereafter, after drying at 70 ° C. for 3 minutes, subsequently, drying at 100 ° C. × 2 minutes was performed to form a heat-sensitive adhesive layer mainly composed of a thermoplastic polycarbonate polyurethane resin having a thickness of about 100 μm. The heat-sensitive adhesive was laminated so that the moisture permeable and waterproof membrane surface of the laminate cloth was in contact with it, and was bonded at a temperature of 150 ° C. and a pressure of 300 kPa. Thereafter, the release paper was peeled off to prepare a seam tape having a width of 20 mm.
<Prescription 8>
100 parts by weight of Seika Bond HS-540 (manufactured by Dainichi Seika Kogyo Co., Ltd., polycarbonate-based polyurethane resin having a softening point of 145 ° C. and a solid content of 50% by mass)
N, N-dimethylformamide 10 parts by mass Methyl ethyl ketone 15 parts by mass [Preparation of medical outer garment]
A medical outer garment was obtained in the same manner as in Example 1 except that the hot air temperature of the hot air machine was changed to 570 ° C. using the fabric and the seam tape.

Example 4
[Preparation for repair patch]
A 50 mm square repair patch was obtained by the same method as that used to obtain the seam tape in Example 1.
[Attach repair patch]
A cross-cut portion was provided at the location of the fabric of the medical outer garment obtained in Example 2. The cross cut site is a form in which a cutting line having a length of 30 mm intersects at the center. A repair patch was stuck with a small press machine so as to cover this part. The sticking conditions were a temperature of 190 ° C., a time of 1 minute, and a pressure of 300 kPa.

Example 5
[Preparation for repair patch]
A 50 mm square repair patch was obtained by the same method as that used to obtain the seam tape in Example 3.
[Attach repair patch]
A crosscut part was provided in the place of the cloth of the medical outer garment obtained in Example 3, and the repair patch was stuck with a small machine so as to cover this part. The sticking conditions were a temperature of 190 ° C., a time of 1.5 minutes, and a pressure of 300 kPa.

Comparative Example 1
[Dough preparation]
A dough was prepared by the same method as in Example 1.
[Preparation of seam tape]
A laminate fabric was prepared by the same method as in Example 1.
In place of the resin solution of the above formulation 6 used in Example 1, the following formulation 9 (solid content 40% by mass, viscosity 6500 mPa · s / 25 ° C.) was used in the same manner as in Example 1 except that the seam tape was used. Prepared.
<Prescription 9>
Rezamin UD-1305 100 parts by mass (manufactured by Dainichi Seika Kogyo Co., Ltd., polyester polyurethane resin having a softening point of 100 ° C. and a solid content of 50 mass)
N, N-dimethylformamide 10 parts by mass Methyl ethyl ketone 15 parts by mass [Preparation of medical outer garment]
A medical outer garment was obtained in the same manner as in Example 1 except that the hot air temperature of the hot air machine was changed to 500 ° C. using the fabric and the seam tape.

Comparative Example 2
[Preparation for repair patch]
A 50 mm square repair patch was obtained in the same manner as the method for obtaining the seam tape in Comparative Example 1.
[Attach repair patch]
A crosscut part was provided in the place of the cloth of the medical outer garment obtained in Example 1, and the repair patch was stuck with a small machine so as to cover this part. The sticking conditions were a temperature of 180 ° C., a time of 1 minute, and a pressure of 300 kPa.

The medical outer garments obtained in Examples 1 to 5 and Comparative Examples 1 and 2 were washed and sterilized under the following conditions.
[Washing]
(1) Using an industrial washing machine (Suga Test Instruments Co., Ltd., model number “LM-W type”), washing was performed under the following conditions.
-Bath ratio: 1:40 (1.5 kg: 60 L)
Detergent: Pure soap (manufactured by Fudo Chemical Co., Ltd.) 1 kg / L was used by adding 0.8 g / L of caustic soda to adjust the pH to 10.
Process: Washing (73 ° C. × 200 minutes) → Washing water (40 ° C. × 30 minutes) → Overflow rinse (room temperature × 15 minutes) → Dehydration → Tumble drying (60 ° C. × 20 minutes)
During this process, normal washing is 73 ° C. × 20 minutes, so this washing corresponds to 10 times of normal washing.

[Sterilization]
Sterilization was performed under the following conditions using a high-pressure steam sterilizer (manufactured by Hirayama Seisakusho, model number “HV50 type”).
・ Process: Sterilization (135 ℃ × 80 minutes) → Tumble drying (60 ℃ × 20 minutes)
Since normal sterilization is 135 ° C. × 8 minutes during this step, this sterilization corresponds to 10 times of normal sterilization.

  For each washing described above, sterilization treatment was performed once and performed 10 times each. This corresponds to 100 times of normal washing and sterilization.

[Water pressure test]
With respect to the medical outer garments obtained in Examples 1 to 5 and Comparative Examples 1 and 2, the water pressure resistance (Wb) of the application site of the seam tape or the repair patch before washing and sterilization was measured. Further, the water pressure resistance (Wa) at the place where the seam tape or the repair patch was applied after the washing and sterilization were repeated 10 times each was measured. The unit of the water pressure resistance is kPa. The results are shown in Table 1.
Here, the water pressure resistance was measured according to JIS L-1092 (high water pressure method). In addition, during the water pressure resistance test, the swelling method was greatly different between the seam tape or repair patch sticking place and the non-sticking place. Therefore, in order to make the swelling method almost the same, measurement is performed by covering the sticking place with a plain fabric of nylon filament yarn 78 dtex / 24f (warp density 110 / 2.54 cm, weft density 90 / 2.54 cm). Went. In addition, since it can be said that it has sufficient waterproof performance if the attachment location of the seam tape or the repair patch is 200 kPa or higher, the water pressure is 200 kPa even if the water pressure exceeds 200 kPa. did.

As can be seen from the results shown in Table 1, the medical outer garments obtained in Examples 1 to 5 have little decrease in the water pressure resistance at the seam tape or repair patch application site even after repeated washing and sterilization treatments. On the other hand, it can be seen that the medical outer garments obtained in Comparative Examples 1 and 2 have significantly reduced water pressure resistance and lost waterproofness. Therefore, it turns out that the medical outer garments obtained in Examples 1-5 are excellent in washing durability.

  As can be seen from the results in Table 1, the medical outer garments according to Examples 1 to 5 have a small decrease in the water pressure resistance of the seam tape or repair patch even when the washing and sterilization processes are repeated. It can be seen that the medical outer garments according to Comparative Examples 1 and 2 have a significantly reduced waterproof pressure and a loss of waterproofness. Therefore, it turns out that the medical outerwear which concerns on Examples 1-5 is excellent in washing durability.

It is a typical cross section of the cloth used for the medical outer garment concerning an example of the present invention. It is a typical cross-sectional view of the seam tape or repair patch used for the medical outer garment which concerns on an example of this invention. It is the typical cross-sectional view which showed the location of the seam of the medical outer garment which concerns on an example of this invention.

DESCRIPTION OF SYMBOLS 1 Surface material which consists of polyester fabric 2 Adhesive which has polycarbonate-type polyurethane resin as the main body 3 Polyurethane film which has polycarbonate-type polyurethane resin as the main component 4 Adhesive which has polycarbonate-type polyurethane resin as the main component 5 Lining which consists of polyester-type fabric 6 Polycarbonate type Thermosensitive adhesive mainly composed of polyurethane resin 7 Polyurethane film mainly composed of polycarbonate polyurethane resin 8 Adhesive mainly composed of polycarbonate polyurethane resin 9 Base fabric made of polyester fabric 11 Fabric 12 Seam tape or repair patch 13 Seam

Claims (5)

Outer, adhesives, moisture-permeable waterproof membrane, sewn fabric formed by laminating integrally in the order of the adhesive and backing, and a method of manufacturing a medical out garments of attaching a seam tape seam,
The seam tape is laminated and integrated in the order of a heat-sensitive adhesive mainly composed of a polycarbonate-based polyurethane resin, a moisture-permeable waterproof film, an adhesive, and a base fabric,
The above described outer material, lining material and base fabric are all polyester fabrics,
Any of the adhesives described above is an adhesive mainly composed of a polycarbonate-based polyurethane resin,
Any of the moisture permeable waterproof membranes described above is a polyurethane membrane mainly composed of a polycarbonate-based polyurethane resin,
By melting and solidifying the heat-sensitive adhesive, the manufacturing method of a medical out garments, characterized by attaching the seam tape on the outer material surface. In the method for manufacturing a medical outer garment in which a repair patch is attached to a damaged portion of a fabric that is laminated and integrated in the order of a surface material, an adhesive, a moisture permeable waterproof film, an adhesive, and a lining,
The repair patch is one in which a heat-sensitive adhesive mainly composed of a polycarbonate-based polyurethane resin, a moisture-permeable waterproof film, an adhesive, and a base fabric are laminated and integrated in this order,
The above described outer material, lining material and base fabric are all polyester fabrics,
Any of the adhesives described above is an adhesive mainly composed of a polycarbonate-based polyurethane resin,
Any of the moisture permeable waterproof membranes described above is a polyurethane membrane mainly composed of a polycarbonate-based polyurethane resin,
By melting and solidifying the heat-sensitive adhesive, the manufacturing method of a medical out garments, which comprises adhering the repair patch to the outer material surface. The manufacturing method of the medical outer garment of Claim 1 or 2 with which the adhesive agent currently used for cloth | dough is provided in dot shape.   It is a seam tape used when manufacturing the medical outer garment according to claim 1, wherein the seam tape is composed of a heat-sensitive adhesive mainly composed of a polycarbonate-based polyurethane resin, a moisture-permeable waterproof film, an adhesive, and a base fabric. The moisture permeable waterproof membrane is a polyurethane membrane mainly composed of a polycarbonate polyurethane resin, the adhesive is an adhesive mainly composed of a polycarbonate polyurethane resin, and the base fabric is a polyester fabric. The seam tape characterized by being.   It is a repair patch used when manufacturing the medical outer garment of Claim 2, Comprising: This repair patch is the order of the heat sensitive adhesive which has polycarbonate-type polyurethane resin as a main component, a moisture-permeable waterproof film, an adhesive agent, and a base fabric. The moisture permeable waterproof film is a polyurethane film mainly composed of a polycarbonate-based polyurethane resin, the adhesive is a heat-sensitive adhesive mainly composed of a polycarbonate-based polyurethane resin, A repair patch, which is a polyester fabric.

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