JPH0366366A - Throw-away gown for surgical operation - Google Patents

Abstract

PURPOSE:To simultaneously satisfy liquid impermeability, moisture permeability and liquid absorptivity by forming a front body and sleeves of laminated fabrics of moisture permeable non-oven fabrics on inside and outside surface and a liquid impermeable and moisture permeable plastic film interposed therebetween and imparting the non- woven fabric if the inside with a liquid absorptivity. CONSTITUTION:The front body 2 and sleeves 4 of a main body 1 are formed of the laminated fabrics of the moisture permeable non-oven fabrics 7, 8 on the inside and outside surfaces and the liquid impermeable and moisture permeable plastic film 9 interposed therebetween. The non-woven fabric 7 of the inside surface has the liquid absorptivity. The liquid absorptivity of the non-woven fabric 7 of the inside surface is imparted by using so-called perspiration absorptive fibers which have hydrophilic fiber surfaces or hydrophobic fibers, the surfaces of which are treated with a surfactant and are thereby imparted with a hydrophilic property. The moisture vapor transmission rate of the plastic film 9 is generally 1000 to 4000gH2O/m<2>.24hrs. The difference in moisture permeation effect as compared with the non-moisture permeable plastic film is substantially not admitted if the moisture vapor transmission rate is below 1000gH2O/m<2>.24hrs. The liquid permeability is result if the moisture vapor transmission rate is 4000gH2O/m<2>.24hrs or over.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a disposable surgical gown, and more particularly, the present invention relates to a disposable surgical gown, which is made mainly of non-woven fabric and plastic film, and is liquid-impermeable, moisture-permeable, and liquid-absorbent at the same time. Concerning a satisfying disposable surgical gown.

[Conventional technology]

The main purpose of the gowns worn by doctors and nurses in the operating room is to prevent the transfer of bacteria from the surgeon to the patient and from the patient to the surgeon. Traditionally, woven fabrics such as cotton and synthetic fibers have been used as materials for gowns.
In recent years, nonwoven fabrics have come to be used to ensure safety, hygiene, and quality control.

More specifically, woven gowns, such as sunne gowns, are washed and reused, so as the number of washes increases, they tend to tear, fray, deform the weave, and reduce water repellency. The limits to guarantee safety in such cases are not clear.

Furthermore, as gowns with bacteria-containing blood and other substances adhered to them are washed and recycled, carrying them around the hospital or outside the hospital can lead to bacterial infections to related parties inside and outside the hospital. Such woven gowns were undesirable from the standpoint of preventing such infections.

On the other hand, since non-woven gowns are disposable and incinerated after each surgery, they have recently become popular as an alternative to woven gowns as they can overcome the drawbacks of the woven gowns.

This non-woven gown has improved strength, breathability, lightness, flexibility, and drapability by selecting the fibers used and devising the non-woven fabric manufacturing method.In addition, water-repellent treatment prevents blood containing bacteria from adhering to it. Improvements are being made to prevent this from happening.

(Problems to be Solved by the Invention) However, nonwoven fabric gowns still have problems in liquid impermeability. Specifically, during surgery, relatively large amounts of blood and cleaning fluids often adhere to the gown for a long period of time, but in this case, these fluids can penetrate to the back of the gown, and the amount of these fluids can be compared. Even if the target is small, there is a risk that it will easily penetrate if rubbed against an operating table or the like. Furthermore, since both the inner and outer surfaces of the nonwoven gown are water-repellent, they do not absorb the wearer's sweat and are very uncomfortable to wear.

Regarding the permeation of liquid to the back side of the gown, it may be possible to improve it by laminating a plastic film to the nonwoven fabric or by increasing the amount of constituent fibers, that is, the basis weight. However, in the former case, the gown does not have moisture permeability, causing stuffiness within the gown, making the wearer feel stuffy and promoting sweating. In addition, in the latter case, the cost is high and the flexibility, drapability, and lightness are inferior.

An object of the present invention is to provide a disposable surgical gown that can satisfy liquid impermeability, moisture permeability, and liquid absorption properties at the same time despite using a bonded fabric of a nonwoven fabric and a plastic film. be.

(Means for Solving the Problems) To achieve the above object, the present invention has a main body consisting of a front body and continuous left and right rear bodies that cover the wearer's torso, and a main body that covers the wearer's torso, and A disposable surgical gown having sleeves that extend to cover the arms of the wearer, wherein at least the front body and sleeves of the main body include moisture permeable nonwoven fabric on the inner and outer surfaces and a liquid-impermeable and moisture permeable plastic film interposed therebetween. The inner surface of the non-woven fabric has liquid-absorbing properties.

In a preferred embodiment, the plastic film is a porous film having a moisture permeability of at least 10 QgH20/-24 hrs, and the inner nonwoven fabric is made of cellulose fibers or so-called sweat-absorbing wire rods as a main material. each used.

In a preferred embodiment, the bonding between the inner and outer nonwoven fabrics and the plastic film is achieved through an adhesive partially distributed between them, and the adhesive is bonded to the inner and outer nonwoven fabrics and the plastic film. Between each period (
The mutual distribution area ratio on one side) is set to 5 to 50t.

In a preferred embodiment, a tape-shaped liquid-impermeable film covering the main body and the sleeve is bonded along the sewn portion.

Other preferred detailed embodiments will become apparent from the description below.

(Embodiments) The embodiments of the gown of the present invention will be described below with reference to the drawings.

In FIGS. 1 and 2, the gown includes a main body 1 consisting of a front body 2 and continuous left and right rear bodies 3, and sleeves 4 extending from the shoulders of the main body 1. The main body 1 covers the wearer's torso from the front side to the back side, and is formed in a size such that the left and right rear body parts 3 partially overlap. The left and right rear body parts 3 are formed separately from the main body 1, are joined to the main body 1, and have a tying string attached thereto, although not shown.

Although not shown, a hood or a mask may be connected to the upper end of the main body l. The sleeve 4 is formed in a length that covers the wearer's shoulder to wrist, and has an elastic sleeve 5 joined to its tip. However, the sleeves 4 may be formed into so-called short sleeves.

In the illustrated example, the front body 2 has a width that covers the front side and part of the back of the wearer, and the left and right rear body 3 has a width that covers the front and back of the wearer that is not covered by the body 2. However, in the present invention, the "front body" has a width that covers at least the front side of the wearer, and the "left and right rear body" collectively refers to at least a part of the back side of the wearer. This means that it has a width that covers the

As shown in FIG. 3, the front body 2 and sleeves 4 of the main body l are
It is formed from a bonded fabric 6 of moisture-permeable nonwoven fabrics 7 and 8 on the inner and outer surfaces and a liquid-impermeable and moisture-permeable (breathable) plastic film 9 interposed between them, and the inner surface nonwoven fabric 7 has liquid absorption properties. have.

The inner and outer nonwoven fabrics 7 and 8 are not particularly limited in terms of fiber, structure, manufacturing method, etc., but each has a basis weight of 10 to 40.
g/l and has low electrostatic properties. It may also have elasticity. If the constituent fibers are synthetic fibers such as polyester or polypropylene, antistatic treatment is required, but if the fibers are cellulose-based wood-philic wire rods, this is not particularly necessary.

For the liquid absorbency of the inner nonwoven fabric 7, cellulose fibers, so-called sweat-absorbing fibers whose fiber surfaces are wood-philic, or hydrophobic fibers whose surfaces are treated with a surfactant to make them hydrophilic are used. It is given by this. By the way, conventional non-woven fabric gowns of this type have a fairly high basis weight (50-80g).
/l) L/, the entire surface is treated with water repellent treatment to improve its liquid impermeability, but in order to impart liquid absorbency to the inner surface of such nonwoven fabrics, when laminated with absorbent nonwoven fabrics, the fabric weight becomes high. It becomes too thin and has poor breathability, drapability, and lightness.
And the cost will be high.

Whether or not the outer surface nonwoven fabric 8 is water repellent is not particularly important. This is because a liquid-impermeable and moisture-permeable plastic film 9 is bonded to the inner surface of the outer nonwoven fabric 8, so that liquid does not pass through the fabric 6.

The moisture permeability of the plastic film 9 is generally 100.
0 to 4000gH2O/m2・24hrs. When the moisture permeability is less than 1000100 O/1·24 hrs, there is virtually no difference in the moisture permeability effect compared to non-moisture permeable plastic films. Moisture permeability 4000gH, 0/m”*2
The river is more than 4 hrs, preferably 20-30%.

If the thickness is less than 15IL, there is a risk of tearing during use of the gown or handling of the fabric 6. If the thickness exceeds 50 mm, it is not only uneconomical but also unfavorable in terms of drapeability and sound generation. Preferred materials include porous urethane films such as VORE-TEX, which are mainly used in clothing, and porous polyolefin films, which are used as back sheets for disposable diapers. It may also have elasticity.

Regarding the moisture permeability of the inner and outer nonwoven fabrics 7.8, these can be obtained by a known manufacturing method, for example, with a basis weight of 100 glI.
If it is less than m'', it has more than sufficient moisture permeability, so there is no need to mention it in particular.

The left and right rear bodies 3 may also be formed of the fabric 6,
It may be formed from a single nonwoven fabric.

The reason why it may be formed from a single non-woven fabric is because it is a problem for blood or cleaning fluid to adhere to the left and right rear body parts 3 during surgery, and the air permeability is further improved after doing so. As shown in FIG. 1, when parts of the left and right rear body parts 3 overlap, it is desirable that there is no plastic film attached to the overlapping area that would reduce the breathability of the nonwoven fabric even to some extent.

As shown in FIG. 3, the inner and outer nonwoven fabrics 7, 8 and the plastic film 9 are bonded via an adhesive 10 that is applied in dots over almost the entire area of the film. The total coating area ratio on one side of the film 9 is 5~
Preferably, it is 50 pieces. If the coating area is less than 51, the strength of the bond will not be sufficient. Coating area rate 50%
If it is super, the stiffness will be high over the entire area of the fabric,
In addition, the liquid absorbency of the nonwoven fabrics 7 and 8 tends to decrease, and the rate at which some of the micropores of the film 9 are blocked increases, resulting in a decrease in moisture permeability of the film. The position of the soft adhesive dots 10 on both sides of the film 9 is such that the dots completely face each other and overlap each other on both sides, which results in a lower percentage of the micropores of the film 9 being partially blocked than if the dots were placed alternately. and the moisture permeability of the noilum becomes low,
The drapability of the fabric 6 is not impaired. however.

The adhesive application area ratio and moisture permeability are not necessarily proportional, and the moisture permeability only gradually decreases until the application area ratio SOW < 50%, and the moisture permeability decreases rapidly when the adhesive reaches 50 degrees. Tend. Instead of the above-mentioned bonding using adhesive IO, thermal welding or ultrasonic welding is also a preferable bonding means, but considering that there is a risk of damage to the welded part of the film 9, it is preferable to use adhesive IO. It is more preferable that

As shown in FIG. 4, the front body 2 and the left and right rear body 3
and the connection between the main body l and the sleeve 4 is M1.
This is done by combining In the case of suturing, in order to prevent the liquid impermeability of the film 9 from being impaired due to the formation of combs, a tape-shaped liquid impermeable film 12 is attached along the sutured portion 11 via an adhesive 13. It is joined. A heat-softening adhesive is used as the adhesive 13, and a heating iron is applied along the film 12 to soften the adhesive and allow it to seep between the fibers of the nonwoven fabrics 7 and 8.
The film 12 may be softened and bonded to the nonwoven fabric 7°8 by applying a heating iron along the film 12 without using a heating iron. If other means such as heat welding or ultrasonic welding can be used instead of the suturing, the film 1
In the illustrated example, the film 12 is applied to the outer surface of the fabric 6, which is more preferred, but it may also be applied to its inner surface.

(Example) Made by blending and melting polyethylene resin and filler particles! ! Thickness that can be stretched to 20 mm, moisture permeability 240 mm
0gHsO/m"・24hrs, water resistance 2000g+m
Dots of urethane-based adhesion agent are applied to one side of a porous film of HtO or higher (SBOAR PM-3, manufactured by Mitsui Toatsu Chemical Co., Ltd.), and rayon fiber @1.5dx45 is coated on one side.
1-25g/■2 spunlace non-woven fabric treated with water repellency (
A material with a water repellency level of 85 was pasted. Furthermore, the adhesive was applied in dots to the other side of the film, and the same nonwoven fabric as the nonwoven fabric, which had not been treated with water repellent treatment, was bonded to one side to obtain a fabric.

The coating area ratio of the adhesive is 10 on one side of the film.
-10oz.

A surgical gown of the present invention was sewn using the fabric, and the comfort when worn, the moisture permeability of the fabric, and the change in humidity within the gown (using a simulator) when worn were measured.

As a comparative example, pulp/polyester fiber M=60740
A 70 g/l spunlace nonwoven fabric having a weight of t and treated to be water repellent was used to sew a gown similar to the above-mentioned gown of the present invention.

Further, as a comparative example, a gown similar to the gown of the present invention was sewn using a non-porous polyethylene film instead of the above film.

(Effects of the Invention) As described above, the gown of the present invention has a liquid-impermeable and moisture-permeable plastic film interposed between the moisture-permeable nonwoven fabrics on the inner and outer surfaces, and the inner nonwoven fabric is a liquid-absorbing fabric. Since at least the front body and sleeves of the gown are formed from the above, the liquid impermeability of the entire gown and the sweat absorbency of the inner surface of the gown are significantly improved, and at the same time, the moderate moisture permeability effect is exchanged, causing stuffiness inside the gown. It can be worn less and more comfortably.

Furthermore, since it is not necessary to increase the basis weight of the nonwoven fabric in order to improve the liquid impermeability of the fabric, the cost does not increase and the gown is lightweight and has excellent drape properties. At the same time, since the non-woven fabric is located on the inner surface of the film, it is possible to suppress as much as possible the clinging of the main body of the gown and the sleeves, or these and other clothing of the wearer, due to the generation of static electricity or friction caused by the film. , damage caused by the film coming into direct contact with an object such as an operating table can be avoided. Incidentally, if the film is exposed on the inner surface of the gown, a large amount of static electricity is generated and friction between the films and other clothing is large, making it unsuitable for use as clothing.

Further, since the inner and outer nonwoven fabric and the plastic film are partially bonded via an adhesive, the fabric does not become rigid and the moisture permeability of the film is less likely to be impaired.

Furthermore, since the seam between the main body of the gown and the sleeve is covered with a tape-like liquid-impermeable film, liquid does not permeate into the gown through the seam.

[Brief explanation of drawings]

The drawings show an embodiment of the gown according to the present invention. Fig. 1 is a front view of the gown, Fig. 2 is a front view with the left and right rear sections of the gown opened, Fig. 3 is a cross-sectional view of the fabric, and Fig. 4 is a front view of the gown. FIG. 3 is a partial perspective view of a seam portion of the fabric. 1...Main body 2...Front body 3...Left and right back body 4...Sleeves 6...Fabric 7, 8...Nonwoven fabric 9...Plastic film

Claims (3)

[Claims] (1) A disposable surgical gown having a main body consisting of a front body and left and right rear bodies continuous to the front body and covering the wearer's torso, and sleeves extending from the left and right shoulders of the main body and covering the wearer's arms. At least the front body and the sleeves of the main body are formed of a bonded fabric of moisture-permeable nonwoven fabric on the inner and outer surfaces and a liquid-impermeable and moisture-permeable plastic film interposed between them, and the inner nonwoven fabric is The gown has liquid absorbency. (2) The plastic film has at least 100
The gown according to claim 1, which is a porous film having a moisture permeability of gH_2O/m^2·24hrs. (3) The inner and outer nonwoven fabrics and the plastic film are joined through an adhesive that is partially distributed between them, and the adhesive is bonded between each of the inner and outer nonwoven fabrics and the plastic film. The gown according to claim 1, wherein the total distribution area ratio is 5 to 50%. (4) The gown according to claim 1, wherein a tape-shaped liquid-impermeable film covering the sewn portion of the main body and the sleeve is joined along the sewn portion of the main body and the sleeve.