KR20210092193A - hazmat suit - Google Patents

Abstract

In order to provide a protective suit that is not only excellent in wearing comfort, but also capable of suppressing the occurrence of dew even when wearing equipment, a nonwoven fabric 7 with a ventilation rate of 20 cm 3 /cm 2 /sec or more and 150 cm 3 /cm 2 /sec or less and a tube A protective suit with a hood (2) combined with a hood (2) composed of a nonwoven fabric (6) with a skill of 0 cm 3 /cm 2 /sec or more and 19 cm 3 /cm 2 /sec or less, wherein the hood 2 has an opening 3 at the center of the wearer's face. ), each having belt-shaped members 4 and 5 on the upper side of the opening 3 and the lower portions of the left and right sides of the opening 3, wherein the two belt-shaped members 4 and 5 are respectively coupled at the left and right temporal portions, or Let it be a protective suit characterized in that it is configured to be able to combine.

Description

hazmat suit

The present invention relates to a protective clothing that is easy to attach and detach and has a high degree of adhesion to the head or face.

When working in a place where external harmful substances such as dust, radioactivity or viruses exist, wear a protective suit or a protective hood to protect the body from them. When wearing, it is necessary to be careful not to contact the surrounding protective clothing, etc. In addition, in a food factory or a clean room, a protective suit or a protective hood is worn for the purpose of not letting dirt, such as a rash or hair, from the human body come out. At this time, since a mask, goggles, etc. must be equipped repeatedly, if it wears for a long time, a damp feeling is felt and it becomes unpleasant in many cases.

Therefore, when wearing, the leg opening is opened, and when taking off, the upper body is removed from the shoulder opening by opening the shoulder opening (Patent Document 1). When worn, both legs and sleeves are shortened. “Easy to wear clothes” (Patent Document 2), which has been researched to prevent clothing from contacting the surroundings by inserting both legs and hands in that state, and “dustproofing” with high adhesion by filling the gap between the nose and cheeks with a pad Hood" (Patent Document 3), "Hazardous Clothing" worn from the top of the protective mask in a state of wearing a protective mask (Patent Document 4), Repeatable washing with excellent chemical resistance, waterproofness and light weight "Moisture-permeable waterproofness and durability" Provided protective clothing and fabric" (patent document 5) is proposed.

Japanese Patent No. 5317444 Japanese Patent No. 5380441 Publication Japanese Patent Laid-Open No. Hei 10-155924 Japanese Patent Laid-Open No. 2018-82891 Japanese Patent No. 6080925

However, the "clean room wear" described in Patent Document 1, in which openings are formed under the shoulder and crotch, expands the leg openings when worn and wears the wear from above, so there is no fear of the wear coming into contact with the floor, but when taking off Since the wear is lowered by opening the shoulder opening, there is a risk that the wear may come into contact with the floor. In addition, when the leg or shoulder openings are opened and closed, the fingers come into contact with the outer side of the wear and the slide fastener, and there is a risk of adhesion of bacteria or contamination.

"Clothes that are easy to wear" of Patent Document 2 are shortened by pulling the anchor strips installed inside both legs and sleeves of the garment when worn, and by inserting both legs and hands in that state, Although clothing can be worn without contact, the sewing process is complicated because there are many accessories for installing a sheath for passing the anchor strip, a loop for fixing the anchor strip, and the like, and cost increase is a problem for one-time use.

In addition, the "dust-proof hood" described in Patent Document 3 and the "Hazardous clothing" of Patent Document 4 are protective clothing with high airtightness, for example, when worn in a closed space such as a clean room, it is hot and has poor comfort. Since the protective clothing described in Patent Document 5 also laminates a plurality of highly waterproof materials, it has excellent chemical resistance and the like, but when worn in a closed space such as a clean room, it is hot and poor in comfort. In addition, although a method of constructing a hazmat suit with a material with high breathability is considered to reduce the sweltering heat, it has also been found that water vapor evaporating from the body, especially the head, causes dew condensation at the interface between the hazmat suit and equipment such as goggles.

It is an object of the present invention to provide a protective clothing that not only improves the drawbacks of the prior art and is excellent in wearing comfort, but also suppresses the occurrence of dew condensation even when wearing equipment. Another object is to provide a protective suit that can be worn simply and reliably in a clean room.

In order to solve the said subject, the protective clothing of this invention has the structure in any one of the following (1)-(11).

(1) As a protective clothing combined with a hood consisting of a nonwoven fabric with an airflow rate of 20cm3/cm2/sec or more and 150cm3/cm2/sec or less and a nonwoven fabric having an airflow rate of 0cm3/cm2/sec or more and 19cm3/cm2/sec or less. , the hood has an opening at a position in the center of the wearer's face, and has a belt-shaped member on an upper side of the opening and a lower portion of the left and right sides of the opening, and the two belt-shaped members are coupled at the left and right temporal portions, respectively, or can be coupled A protective suit comprising:

(2) The opening is formed in a size of 13 cm to 16 cm in width and 9 cm to 13 cm in length in the center of the front of the hood, and the nonwoven fabric having the ventilation amount of 0 cm 3 /cm 2 /sec or more and 19 cm 3 /cm 2 /sec or less is formed around the opening The protective clothing according to (1) above, which is disposed on at least a part of the.

(3) The protective clothing according to (1) or (2), wherein the hood is attached to the top, including a top of a length equivalent to the vicinity of the wearer's buttocks.

(4) The protective clothing according to (3) or (4), wherein the garment is folded and packaged in a packing bag so that the folds formed by folding the hem of the upper garment back to the outside are arranged on the surface.

(5) The protective clothing according to the above (3) or (4), including a bottom that can cover from the waist to the ankle.

(6) The protective clothing according to (5) above, wherein a size adjustment jig is provided in the waist part of the lower garment.

(7) The protective clothing according to the above (5) or (6), wherein it is folded and packaged in a packing bag so that the fold formed by folding the waist part of the lower garment back to the outside is arranged on the surface.

(8) The protective clothing according to (4) or (7) above, wherein when the packing bag is opened, the folds on the top and/or the folds on the bottoms are exposed.

(9) The protective clothing according to any one of (1) to (8), which has been sterilized.

(10) The protective clothing according to any one of (1) to (9), which is used in a clean room.

(11) The protective clothing according to any one of (1) to (10), which is disposable.

In the protective clothing of the present invention, since a hood composed of two types of nonwoven fabrics having different air permeability is combined with an upper and lower integral garment or an upper garment, it is not only excellent in wearing comfort, but also suppresses the occurrence of dew condensation even when wearing equipment. In particular, by providing a non-woven fabric with a small ventilation amount around the opening formed in the front center of the hood corresponding to the position of the center of the wearer's face, when wearing protective clothing in an enclosed space such as a clean room, equipment such as goggles is installed Condensation is suppressed at the interface with sea-island goggles, making it a very practical protective clothing.

In addition, when the protective clothing of the present invention is divided into a top and a bottom, and the hem of the top and/or the waist of the bottom is folded outside and put in a packing pocket, it is simple without contacting the outside as much as possible when wearing, It can be worn securely, making it a disposable protective suit suitable for wearing in clean rooms, etc.

BRIEF DESCRIPTION OF THE DRAWINGS It is a front view of the upper body in the protective clothing which shows one Embodiment of this invention.
It is an enlarged view of the front surface of the hood part of the upper body in the protective clothing which shows one Embodiment of this invention.
It is an enlarged view of the back side of the hood part of the upper body in the protective clothing which shows one Embodiment of this invention.
Fig. 4 shows No. in the Japanese dimension data book. 15 It is a diagram showing the narrow arch width (A).
Fig. 5 shows No. 5 in the Japanese dimension data book. 8 It is a diagram showing the distance between the forehead and the lower jaw (B).
6 is a view showing the shape of a general hood.
It is a front view of the lower part in a hazmat suit which shows one Embodiment of this invention.
It is an enlarged view of the waist rubber adjustment part of the lower body in a hazmat suit which shows one Embodiment of this invention.
It is a figure of the state in which the top in a hazmat suit is folded which shows one Embodiment of this invention.
It is a figure which shows one Embodiment of this invention, the state in which the lower garment in a hazmat suit was folded.
It is a figure which shows one Embodiment of this invention in the state in which the top in a hazmat suit was packed.
It is a figure which shows one Embodiment of this invention in the state which packed the bottom in the protective clothing.
13 is a view showing similar contaminants attached to the front body of the general upper and lower integrated protective suit used in Reference Example 5;
14 is a view showing similar contaminants attached to the back of the general upper and lower integrated protective clothing used in Reference Example 5;

The protective clothing of the present invention includes a nonwoven fabric (hereinafter referred to as a high-ventilation nonwoven fabric) with an air permeability of 20 cm 3 /cm 2 /sec or more and 150 cm 3 /cm 2 /sec or less, and a ventilation rate of 0 cm 3 /cm 2 /sec or more and 19 cm 3 /cm 2 /sec or less A hood composed of a non-woven fabric (hereinafter referred to as a low-ventilation non-woven fabric) of If the high-ventilation nonwoven fabric is less than 20cm3/cm2/sec, it tends to become damp and wear comfort is deteriorated. When it exceeds 150 cm 3 /cm 2 /sec, the dust collection efficiency is lowered, and it may become difficult to prevent the intrusion of contaminants from inside and outside. And, by simultaneously using a low-ventilation nonwoven fabric having an air permeability of 0 cm 3 /cm 2 /sec or more and 19 cm 3 /cm 2 /sec or less, it becomes a protective clothing that can suppress dew condensation.

Further, in the hood covering the wearer's head, an opening is formed at the center of the wearer's face, and band-shaped members are provided on the upper side of the opening and below the left and right sides of the opening. In addition, the two band-shaped members are respectively coupled or configured to be coupled at the left and right temporal portions.

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of this invention is described concretely, referring drawings, taking the protective clothing which combined the hood with the upper garment as an example.

For example, in the protective clothing 100 of the present invention shown in FIG. 1 , the opening 3 is formed at the center of the wearer's face, and the hood 2 covering the wearer's head is sewn to the top 1 .

It is preferable that the material of the main body of the upper garment (1) is a high-ventilation nonwoven fabric 7 having a ventilation rate of 20 cm 3 /cm 2 /sec or more and 150 cm 3 /cm 2 /sec or less. On the other hand, with respect to the hood 2, if it is composed only of the above-mentioned nonwoven fabric having a high ventilation rate, when the hood is worn, for example, when goggles are worn, the moisture inside the hood, that is, the increase in feeling from the body, is increased as described above. It passes through the highly ventilated nonwoven fabric and penetrates the surface, making it easy to condense between the goggles and the goggle belt. Therefore, in the present invention, for example, a low-ventilation nonwoven fabric 6 with an airflow amount of 0 cm 3 /cm 2 /sec or more and 19 cm 3 /cm 2 /sec or less is used in the range in which goggles or goggles belts are attached, and other than that, the By combining the highly breathable nonwoven fabric 7, which is a material with high performance, comfortable wearability is achieved while solving problems such as dew condensation.

As shown in dark color in Figs. 1, 2, 3, and 9, the low air permeability nonwoven fabric 6 is preferably arranged in at least a part of the location around the side of the opening. Among them, the low-ventilation nonwoven fabric 6 is used at the location where the goggle belt is installed (that is, the location where the goggle belt comes into contact) as shown in FIGS. 2 and 3, thereby solving problems such as dew condensation when wearing the goggle belt. can In addition, it is preferable to use the low-ventilation nonwoven fabric 6 also for the upper side belt-shaped member 4 and the left and right side belt-shaped members 5 from the viewpoint of more preventing dew condensation.

By forming the opening 3 in the front center of the hood of the protective suit, it is possible to expose the eyes, nose, and mouth. The size of the opening 3 is preferably 13 cm to 16 cm in width (lateral direction), and more preferably about 15 cm. 9 cm - 13 cm are preferable and, as for the length (vertical direction) of an opening part, 11 cm - 12 cm are more preferable. This is a number calculated with reference to the Japanese human body size data book 2004-2006 published by the Ergonomics Research Center, a narrow arch width (A) shown in Fig. 4 for the width direction, and Fig. 5 for the longitudinal direction. Referring to the distance between the eyebrows and the lower jaw (B), it is considered that the skin exposure is minimized and the size does not interfere with the gaze. In the present invention, it is preferable that the low air permeability nonwoven fabric 6 is also disposed at least in part of the periphery of the opening 3 of this size.

In the protective clothing of the present invention, as shown in Fig. 2, the upper side belt-shaped member 4 is provided on the upper side of the opening 3, and the left and right side belt-shaped members 5 are provided at the lower side of the left and right sides, and the two belt-shaped members (Upper side belt-shaped members 4 and left and right side belt-shaped members 5) are configured to be engaged or engageable at the positions of the left and right temporal portions C, respectively. By providing the upper band-shaped member 4, the hood can be brought into close contact with the forehead, and displacement of the hood when the head or neck is moved from side to side can be prevented. In the absence of the upper band-shaped member 4, a gap is formed between the hood and the forehead when it is moved, so that it is difficult to highly prevent intrusion of contaminants from the inside and the outside. Further, by arranging the left and right side belt-shaped members 5 under each of the left and right sides of the opening 3 in addition to the upper side belt-shaped member 4, the degree of adhesion of the hood can be further increased. In addition, as shown in the region C in Fig. 2, if the upper belt-shaped member 4 and the left and right side belt-shaped members 5 are integrated or made to be integrated, the forehead and the side of the opening can be pulled together, so the wearing process The number can be reduced, and the adhesion is improved.

In the case of wearing goggles, the goggle belt is hung and wound from the frontal part of the hood through the temporal part and over the back of the head, but the belt-shaped member is arranged around the goggle belt. Therefore, it is preferable that the periphery of the belt-shaped member is also made of the low-ventilation nonwoven fabric 6 which is a material having a small air-permeability. That is, as shown in dark colors in Figs. 2 and 3, the upper-side belt-shaped member 4, the left and right side belt-shaped members 5, and the region of the hood occipital region from the left and right sides of the opening are composed of a low-ventilation nonwoven fabric 6 It is preferable to do By doing in this way, in the part to which the goggles are attached, it can prevent more reliably that the dew condensation originating in looking-down expansion|extension from a body generate|occur|produces.

The locking method of the upper side belt-like member 4 may be a structure that can lock by applying tension, such as pulling and fixing the left and right ends according to the circumference of the head. In addition, the both ends of the upper-side belt-shaped member 4 are connected by crossing each other at the back of the head, or a face fastener or double-sided tape is attached to the end of the upper-side belt-shaped member 4, and the both ends of the upper-side belt-shaped member 4 are connected to each other. It may be made to contact and fix, or you may stick the double-sided tape on the side surface of a head and fix it. In addition, the upper band-shaped member 4 needs to have a length greater than or equal to the circumference of the wearer's head when the both ends thereof are intersected and fixed.

As for the shape of the hood, for example, as shown in FIG. 2 , the fabric 8 constituting a portion corresponding to the head of a substantially circular circle and the fabric 9 constituting a portion corresponding to the temporal portion of the substantially trapezoid are formed. By stitching and configuring it, it can be made to be able to adhere more closely to the head. In general, there is a hood in which two pieces of dough of the same type on the left and right are sewn together as shown in FIG. 6, but in the present invention, the correct position of the forehead is easy to be fixed, so it is difficult to block the watch even when the head is moved, and the wear is excellent. The hood of the shape shown in 2 is employ|adopted.

In addition, the said aspect is an example, and when attaching equipment other than goggles, it is preferable to arrange|position a low ventilation nonwoven fabric at the location corresponding to the attachment position of the apparatus.

The hazmat suit of the present invention may have a form in which the hood is coupled to the upper and lower integral clothes in addition to the aspect of coupling the hood to the upper part of the hazmat suit as shown in FIG. 1 . However, when wearing protective clothing worn in a clean room, etc., especially protective clothing subjected to sterilization, it is necessary to wear it quickly so that the protective clothing or the human body does not come into contact with the floor or wall surface, and also to avoid contact with the hands as much as possible on the surface side of the protective clothing. . In general, protective clothing worn in cleanrooms, etc. has a lot of one-piece top and bottom continuous, and since the clothing is long, it takes a long time to take an unreasonable posture such as wearing it with one foot raised, which puts a great burden on the wearer mentally and physically. In addition, it is necessary to wear it quickly so that the protective clothing does not come into contact with the floor or wall when worn. Therefore, it is preferable that the upper and lower parts are separated from the upper and lower integrated protective clothing, which is complicated and laborious to wear.

In this case, it is preferable that the hood is coupled to the upper garment, and the upper garment has a length corresponding to the vicinity of the wearer's buttocks, which can overlap with the lower garment and can prevent rashes from the human body. In addition, "near the gluteal region" as used herein refers to a range of 10 cm in the vertical direction centering on the gluteal region, that is, the most protruding part of the buttocks.

The top may be of a type that can be opened and closed with a fastener or a type with a hood worn from the head, but the type with a hood worn from the head is more preferable in that the wearing process is less.

In addition, as shown in Fig. 1, if the elastic material 12 is provided on the hem of the side of the upper garment 1, it is preferable to prevent the upper end of the upper garment from climbing up and being pushed out from the lower garment when the arm is raised. As the elastic material 12, flat rubber, rib knitted paper, etc. can be used, but it is more preferable to use an elastic rubber that is costly and easy to handle.

As shown in FIG. 7 as a lower garment in this invention, the lower garment 10 which can cover from a waist part to an ankle can be illustrated. In this lower body 10, as shown in Fig. 8, since the elastic material 13 (elastic rubber, etc.) is inserted into the waist, it can be fixed to the waist by simply passing both legs through the bottom and pulling it up.

The elastic rubber inserted into the waist needs to be about 0.7 to 0.9 times the length of the body waist. If the length is shorter than 0.7 times the size of the body waist, it is difficult to pass through the buttocks, and the waist cannot be worn for a long time because the waist is too tight. On the other hand, if it is larger than 0.9 times the size of the body waist, there is a possibility that it may flow down while wearing, which is not preferable. If it is the above-mentioned range, when passing a hip, a waist part catches a buttocks a little, but a waist can be fitted after passing.

Moreover, as shown in FIG. 8, it is more preferable to attach the dimension adjustment jig 11 to the expansion-contraction material 13 (for example, an edge part). When attaching the size adjustment jig 11, it is better to make the elastic material 13 a length of about 1.3 to 1.6 times the body waist size, loosen it when wearing the bottom, and adjust it to the wearer's waist size after wearing it. desirable. If the elastic material 13 is too short, it gets caught on the buttocks when wearing it, making it difficult to wear it smoothly. If it is too long, it will flow down while wearing it, and it is necessary to lift the outer side of the bottom by hand. tends to be problematic. As shown in Fig. 8, it is preferable to arrange the size adjustment jig 11 so that the size adjustment operation can be performed from the back side (inner side) of the lower garment 10 in that it is possible to prevent the hand from contacting the surface of the protective clothing. .

The protective suit consisting of a combination of a top (1) with a length to the vicinity of the gluteal region where the hood is coupled as described above and a bottom (10) that can cover from the waist to the ankle is the burden of the wearing process and the operator’s wearing posture. It can be worn quickly and reliably.

It is preferable that the protective clothing of this invention is packed in the packing bag 18 until use, as shown in FIG.11, FIG.12. In order to wear the protective clothing, first, the upper garment 1 is taken out from the packing bag 18, the hood is put on, the arms are passed through, and the band-shaped member of the opening is fixed at the back of the head. Thereby, the protective clothing of the present invention can be easily worn without the need to take an excessive posture. In the case of the bottom, it is taken out from the packing bag 18, put one foot at a time from the waist part, and fixed at the waist part. Thereby, it can be easily worn without having to take an excessive posture.

When packing the protective clothing of the present invention, for example, as shown in FIG. 9 , it is preferable to turn the hem of the upper garment 1 back and fold it outward and put it in a packing bag. In particular, it is preferable to fold the hem of the jacket so that the fold formed by folding it back to the outside is arranged on the surface, and to put it in the packing bag. In addition, it is preferable to pack so that at least a part of the fold is exposed when the open mouth of the packing bag is opened. When folded in this way, the back side of the hazmat suit can be grasped by grasping the fold with the hem of the jacket turned to the outside. As a result, the front side of the hazmat suit is worn without touching the front side of the hazmat suit as much as possible with hands and without taking an excessive posture. can do. As the folding amount 15, 10 cm to 20 cm of the hem of the upper garment 1 is preferable from the viewpoint of the folding shape and easiness of grip.

Similarly, as shown in Fig. 10, it is preferable to put the bottom 10 in a packing bag so that the waist is folded outward and folded so that the formed fold is placed on the surface, and when the open mouth of the packing bag is opened, the fold It is preferable to wrap so that at least a part is exposed. If the amount of fold 16 is about 5 cm to 25 cm from the waist end 17, since the inside can be grasped, it is preferable. Among them, it is more preferable to fold it back by about 20 to 25 cm, since the length of the bottom is shortened when taking it out of the packing bag, so that it can be easily worn without contacting the wall or the floor.

When packing a protective suit, it is preferable to pack each of the upper and lower garments in a packing bag so as not to disturb the folded state as described above. It is preferable to be folded and packed so that each of the folds of the top and the bottom are arranged on the surface when the open mouth of the packing bag is opened. The top and bottom may be packed in the same bag, or they may be packed separately. However, it is more preferable to pack the top and bottom separately, since one of them becomes useless when replacement is necessary due to dirt adhesion or damage to either of the top and bottom protective clothing at the time of opening. However, when the top and bottom are packed in the same packing bag, when the open mouth of the packing bag is opened, either the top or bottom fold is folded to expose the fold, and when it is taken out, any one of the other bottom and top folds is folded. It is preferable to be folded and packed so that this is exposed.

There is no restriction|limiting in particular as a packing bag, It is preferable that it is a bag which can permeate|transmit a sterilization gas. Moreover, it is preferable at the point which can promote smooth wearing that the opening mouth is formed in the packing bag. Although there is no restriction|limiting in particular also as the aspect of an open mouth, Forming the notch 19 for opening on the side surface of a bag is preferable from the point of easy to understand that it is an open mouth in terms of manufacturing simplicity and appearance.

The protective clothing of the present invention sealed in a packing bag is preferably sterilized and finished. The sterilization process referred to herein is a process that kills bacteria and viruses, and a conventional technique can be used. Specifically, a method of killing bacteria and viruses by irradiating high energy rays such as ultraviolet rays, electron beams, or gamma rays, or exposing them to ethylene oxide gas can be adopted. Among these, in the case of using a material subjected to electret processing for protective clothing, it is preferable to perform sterilization with ethylene oxide gas in order to maintain the performance of the electret processing even after sterilization.

The protective clothing of the present invention can be used in a clean room by the sterilization process described above.

In addition, it is preferable that the protective clothing of the present invention is disposable. Since there is a possibility that contaminants may adhere to the protective clothing, it is preferable from the viewpoint of safety to discard it every time you take off the clothes, and for that purpose, it is more preferable to use an unnecessary nonwoven fabric made of raw fabric at a low cost.

Sewing of the hazmat suit may be performed in a general manner, and considering that the manufactured hazmat suit is used in a clean room, it is preferable to sew it using an overlock sewing machine or a main sewing machine, or to sew so that the fabric end is covered with a piping tape. Among these, the method of using a piping tape is the most preferable since the raw material end is not exposed and dust generation from the raw material end can be minimized.

The material used for the protective clothing of the present invention (hereinafter, the fabric for protective clothing) may be basically any nonwoven fabric having the air permeability as described above, and examples thereof include a single layer of a nonwoven fabric and a laminate using a nonwoven fabric. Examples of laminates include SMS structure (spanbond nonwoven fabric/melt blow nonwoven fabric/spanbond nonwoven fabric), SFS structure (spanbond nonwoven fabric/film/spanbond nonwoven fabric) 3-layer laminate, SF structure (spanbond nonwoven fabric/film) is known The SMS structure or the SFS structure is one of the preferred forms in that a functional material can be used for the middle layer, and the spunbond nonwoven fabric of the front and back layers acts as a protective layer from the outside, and can also give a feel and flexibility. On the other hand, since the SF structure is a two-layer structure, it is excellent in fabric flexibility, and it is preferable at the point which does not permeate|transmit air or water|moisture content.

And it becomes possible to adjust the ventilation amount for the above-mentioned objective by selecting suitably the dough for protective clothing. Specifically, the body of the protective clothing (part of the high-ventilation non-woven fabric of the upper part 1, the lower part 10, and the hood 2) has a non-woven fabric having an SMS structure with an air permeability of 20cm3/cm2/sec or more and 150cm3/cm2/sec or less. It is preferable to employ In addition, it is preferable to select a nonwoven fabric having an SF structure in which the air permeability is 0 cm 3 /cm 2 /sec or more and 19 cm 3 /cm 2 /sec or less for the portion of the low air permeability nonwoven fabric of the hood 2 .

Below, each preferable form is described about the dough for protective clothing.

[Spanbond nonwoven fabric]

Synthetic fibers and natural fibers are exemplified as fibers constituting the spunbond nonwoven fabric used for the fabric for protective clothing, but synthetic fibers are preferable because the fiber diameter can be arbitrarily set.

As a material of the fiber constituting the spunbond nonwoven fabric, for example, polyolefin such as polyethylene and polypropylene, polyester such as polyethylene terephthalate and polylactic acid, polycarbonate, polystyrene, polyphenylene sulfite, fluorine-based resin, and mixtures thereof and the like. Among these, polyolefin is preferable from a viewpoint that it becomes the thing excellent in productivity and a feel of the dough for protective clothing.

The average fiber diameter of the fibers constituting the spunbond nonwoven fabric is preferably 18 µm or more and 30 µm or less. When the average fiber diameter is 18 µm or more, the air permeability of the spunbond nonwoven fabric is superior, and as a result, good air permeability of the fabric for protective clothing can be obtained. Moreover, when an average fiber diameter is 30 micrometers or less, it can be set as the spunbond nonwoven fabric with a soft touch.

In addition, thinning of the average fiber diameter of the fibers constituting the spunbond nonwoven fabric can be achieved by, for example, reducing the resin discharge amount, increasing the discharge speed, and increasing the fiber elongation when producing fibers constituting the spunbond nonwoven fabric. becomes

The thickness of the spunbond nonwoven fabric is preferably 150 µm or more and 300 µm or less. When the thickness of the spunbond nonwoven fabric is 300 µm or less, it becomes possible to make good discharge properties of residual gas during sterilization processing, and when the thickness of the spanbond nonwoven fabric is 150 µm or more, the strength of the dough for protective clothing is further improved.

It is possible to impart various functions to the spunbond nonwoven fabric within a range that does not impair the effects of the present invention. It is possible to impart functions such as, for example, water repellency, oil repellency, antistatic, flame retardant, antibacterial and antifungal to the spunbond nonwoven fabric.

[Melt blown nonwoven fabric]

Synthetic fibers and natural fibers are exemplified as fibers constituting the melt blown nonwoven fabric used for the fabric for protective clothing, but synthetic fibers are preferable because the fiber diameter can be arbitrarily set.

As a material of the fiber constituting the melt blown nonwoven fabric, for example, polyolefin such as polyethylene and polypropylene, polyester such as polyethylene terephthalate and polylactic acid, polycarbonate, polystyrene, polyphenylene sulfite, fluorine-based resin, and mixtures thereof and the like. Among these, polyolefin is preferable from a viewpoint that it becomes the thing excellent in the productivity of the dough for protective clothing, and the feel of the dough for protective clothing.

The melt blown nonwoven fabric can be obtained by a melt blow method. The melt blow method is a method in which a thermoplastic polymer extruded from a spinneret is generally finely fibrous by blowing with hot air, and a web is formed by utilizing the self-sealing properties of the fibers. As spinning conditions in the melt blow method, there are polymer discharge amount, nozzle temperature, air pressure, and the like. By optimizing these spinning conditions, a nonwoven fabric having a desired fiber diameter can be obtained.

It is preferable that the melt blown nonwoven fabric has a polyolefin resin as a main component. When a melt blown nonwoven fabric has a polyolefin resin as a main component, productivity and the feel of the dough for protective clothing become favorable. Moreover, polypropylene is more preferable at the point which the dust collection performance of the dough for protective clothing improves easily by an elelet processing among polyolefin resins. Here, as described above, that the melt blown nonwoven fabric has a polyolefin resin as a main component means that the melt blown nonwoven fabric contains 80% by mass or more of the polyolefin resin based on the total amount of the melt blown nonwoven fabric. In addition, it is preferable that the melt blown nonwoven fabric contains 90 mass % or more of polyolefin resin with respect to the whole melt blown nonwoven fabric, and it is more preferable that the melt blown nonwoven fabric consists only of polyolefin resin.

The average fiber diameter of the fibers constituting the melt blown nonwoven fabric is preferably 3 µm or more and 8 µm or less. When the average fiber diameter is 8 µm or less, the dust collection efficiency of the melt blown nonwoven fabric becomes good, and as a result, the dust collection efficiency of the dough for protective clothing becomes good. On the other hand, if the average fiber diameter is 3 μm or more, the breathability of the melt blown nonwoven fabric and the discharge of residual gas during sterilization will be more excellent, and as a result, the air permeability of the fabric for protective clothing and the discharge of residual gas will be better. do.

In addition, adjustment of the average fiber diameter of the fiber which comprises a melt blown nonwoven fabric can be performed by a conventional technique. Specifically, when producing fibers for use in melt blown nonwoven fabrics, by decreasing the amount of resin discharged, increasing the discharging speed, and increasing the degree of stretching of the fibers, the fibers can be made thinner.

The melt blown nonwoven fabric preferably has a thickness of 100 µm or more and 200 µm or less. When the thickness of the melt blown nonwoven fabric is 200 µm or less, it becomes possible for the dough for protective clothing to obtain good air permeability and discharge properties of residual gases. On the other hand, when the thickness of the melt blown nonwoven fabric is 100 µm or more, the dust collection efficiency of the melt blown nonwoven fabric becomes good, and as a result, the dust collection efficiency of the dough for protective clothing becomes good.

[film]

As a film used for the dough for protective clothing, although various films obtained by a conventional technique can be used, it is preferable that it is a film which has moisture-permeable waterproofness especially. Here, the film means a film obtained from a resin extruded into a two-dimensional phase. As a film having moisture permeability and waterproofness, for example, a microporous film obtained by filling, dispersing, and stretching an inorganic filler in a resin, or a soluble resin and an insoluble resin are mixed in a certain solvent, and only the soluble portion is eluted in the solvent and a microporous film obtained by

As a material of a film, polyolefin, such as polyethylene and a polypropylene, is preferable from a viewpoint that it becomes the thing excellent in the productivity of the dough for protective clothing, and the feel of the dough for protective clothing.

[Lamination method]

The method of laminating a spunbond nonwoven fabric, a melt blown nonwoven fabric, a film, etc. constituting the fabric for protective clothing can take a method that does not impair the performance of the present invention, but due to excessive heat, the spunbond nonwoven fabric or melt blown nonwoven fabric is in a desired state. In order to prevent melting or fusion beyond the above, ultrasonic bonding processing, thermal bonding processing using a heat embossing roll having a pattern height of 1 mm or more, and bonding processing using an adhesive can be used. In particular, in order to uniformly adhere the regions to which the spunbond nonwoven fabric, the melt blown nonwoven fabric, and the film respectively adhere, bonding processing using an adhesive is preferable.

[Electret shoes]

It is preferable that the dough for protective clothing is an electret nonwoven fabric in which a part or the whole of the layer constitution is electretted, and more preferably, the melt blown nonwoven fabric is an electret melt blown nonwoven fabric. By making part or all of the layer composition of the fabric for protective clothing as an Eletret nonwoven fabric, the dust collection performance is improved while ensuring high air permeability of the fabric for protective clothing. In addition, when a part or the whole of the layer constitution of the dough for protective clothing is made of the eletret nonwoven fabric, it becomes possible to suppress the occurrence of lint such as short fibers and foreign substances contained in the dough when the dough for protective clothing is made.

Although various well-known methods can be taken as a method of electretizing, For example, it is possible to electret by corona discharge or water flow. In addition, after electretizing a part of the material of a layer structure, you may laminate|stack by the above-mentioned lamination|stacking method, and after laminating|stacking the whole material of a layer structure, you may electret.

Example

Hereinafter, although an Example, a comparative example, and a reference example are given and demonstrated further more concretely, this invention is not limited to this. In addition, the quality evaluation of the protective clothing used in an Example, a comparative example, and a reference example was implemented by the following method.

(Measuring method in Examples and Comparative Examples)

(1) Aeration

Based on JIS L 1913:2010 6.8.1 Frazilian mold method, the amount of air passing through a test piece having a size of 15 cm x 15 cm was measured as N = 3, and the average value was taken as the air permeability.

(2) Collection efficiency

Ten measurement samples were taken, and each sample was measured with a collection performance measuring device. In this collection performance measuring apparatus, a dust storage box is connected to the upstream of the sample holder which sets a measurement sample, a flow meter, a flow control valve, and a blower are connected and comprised in the downstream. In addition, the particle counter is used in the sample holder so that the number of dust on the upstream side and the number of dust on the downstream side of the measurement sample can be measured respectively through the switching cock. In addition, a pressure gauge is installed in the sample holder to read the static pressure difference between the upstream and downstream samples.

In the measurement of collection performance, polystyrene standard latex powder with a diameter of 0.3 µm (a 0.309U polystyrene 10 mass% solution manufactured by Nacalai Tech, diluted 200 times with distilled water) is filled in a dust storage box, and the sample is set in a sample holder, The air volume is adjusted with the flow control valve so that the filter passing speed is 3 m/min, the dust concentration ^{is stabilized in the range of 10,000 to 40,000 /2.83×10 -4} m (0.01 ft ³ ), and the number of dust upstream of the sample ( D) and the number of downstream dusts (d) were measured three times per sample with a particle counter (manufactured by Rion Corporation, KC-01E), and the collection performance (%) was determined by the following formula. The average value of 10 samples was computed.

Collection efficiency (%)=[1-(d/D)]×100

(3) A feeling of wearing

Wear comfort, wearability, fixability of hood, visibility, and hood when the monitor is put on a protective suit, goggles and a mask are mounted thereon, and when working for 20 minutes in an environment of 25°C × 40% RH Sensory evaluation was performed for the presence or absence of condensation. Table 1 shows the evaluation criteria. The average of the scores given by each of the five monitors was computed, and the value rounded off was employ|adopted.

(Measuring method in reference example)

(1) Number of clothes order

(2) Wearing time

(3) Contact to the outside

(1) (2) and (3) are evaluated simultaneously.

Wear latex gloves on the monitor, spray 2cc of an aqueous solution of fluorescent whitening agent as a similar contaminant on the palm, take out the protective suit from the sterilized packing bag, and wear it so as not to touch the outside as much as possible, the number of wearing sequences at that time, Wear time was measured.

After that, the room was turned off and a black light was illuminated on the monitor to visually confirm the attachment of similar contaminants. By shining a black light, the optical brightener glows pale, but observed with the exception of masks or accessories (such as fasteners or tape).

[Example 1]

Two spunbond nonwoven fabrics were used, and a hot melt adhesive melted by heating to 150° C. with a hot melt adhesive was applied in a spray form from a T-die so that the application amount was 2 g/m 2 on the first surface of one spunbond nonwoven fabric. Thereafter, the melt blown nonwoven fabric was bonded to the first surface of the spunbond nonwoven fabric coated with the hot melt adhesive. Further, the hot melt adhesive heated to 150° C. and melted was applied in a spray form from a T-die so that the application amount was 2 g/m 2 to the melt blow nonwoven fabric side of the obtained spunbond nonwoven fabric/melt blow nonwoven fabric. After that, another spunbond nonwoven fabric was bonded to the surface of the melt blown nonwoven fabric coated with the hot melt adhesive. The three-layer laminate of the obtained spunbond nonwoven fabric/melt blown nonwoven fabric/spanbond nonwoven fabric was wound up to obtain an SMS nonwoven fabric. The airflow rate of this SMS nonwoven fabric was 85 cm 3 /cm 2 /sec.

On the other hand, with a hot melt adhesive machine, a hot melt adhesive heated to 150° C. and melted was applied in a spray form from a T-die so that the application amount was 2 g/m 2 on the first surface of one spunbond nonwoven fabric. Thereafter, the film was bonded to the first surface of the spunbond nonwoven fabric coated with the hot melt adhesive to obtain an SF nonwoven fabric. The airflow rate of this SF nonwoven fabric was 0.05 cm<3>/cm<2>/sec.

The top and bottom of the protective suit were cut using the SMS non-woven fabric, and attached to each other with an overlock sewing machine. A hood was attached to the top, and it was set as the shape shown in FIGS. 1, 2, and 3 . The lower part was made into the shape shown in FIGS. 7 and 8.

The hood has a fabric 9 constituting a portion corresponding to the temporal portion (hereinafter referred to as the hood side 9) and a cloth 8 constituting a portion corresponding to the parietal portion (hereinafter referred to as the parietal portion 8). composed of The side of the hood 9 is composed of three parts, the upper part, the central part, and the lower part, with the opening as a boundary line in the vertical direction when worn, and SMS nonwoven fabric is used for the upper part and the lower part, and SF nonwoven fabric is used for the upper part and the central part, and these are attached one after another did. An opening with a width of 15 cm and a length of 11 cm was formed in the center of the face. On the upper side of the opening, a string locking member constituting the upper side band-shaped member 4 made of SF non-woven fabric with a width of 2 cm and a length of 130 cm is sewn, and on each side of the left and right sides of the opening, a SF non-woven fabric with a width of 2 cm and a length of 50 cm is sewn. The string-shaped locking tools constituting the left and right side band-shaped members 5 made with the above were sewn together. In addition, the upper end of the string locking member constituting the side band member 5 is placed on the string locking member constituting the upper side band member 4 and integrated to the end, and the left and right string locking at the back of the head when worn The spheres were connected and fixed. By using the SF nonwoven fabric for the central portion of the hood side surface 9 and the string-like locking mouth, when the goggles are worn on the hood, it is possible to maintain comfort without dew condensation.

A flat rubber of 1 cm width and 10 cm length constituting the elastic material 12 was sewn to the hem of the side of the top (1). Further, a flat rubber of 1 cm width and 80 cm length constituting the elastic material 13 was inserted into the waist of the bottom 10, and a size adjustment tool 11 was attached to the end thereof. The hem of the top (1) was folded back 10 cm outward, folded so that the fold was placed on the surface, and placed in a packing bag. In addition, the waist of the bottom was folded back 20 cm outward, folded so that the fold was placed on the surface, and placed in a separate packing bag. Each of these two packing bags was subjected to an electret process and further sterilized by ethylene oxide gas.

Regarding this protective clothing, the wearability when the upper and lower garments were taken out from their respective packing bags and worn for work was evaluated by comparing them with the evaluation criteria in Table 1. The results are shown in Table 3, and the physical property values and configurations of the protective clothing are shown in Table 2.

[Example 2]

Using the SMS nonwoven fabric used in Example 1, the top and bottom of the protective suit were cut and welded and sewn by ultrasonic waves. A hood was attached to the top. The configuration of the hood was the same as that described in Example 1 except for the following points. That is, a string locking ball made of SF nonwoven fabric of 2 cm width x 60 cm length was sewn on the upper side of the opening, and a string locking ball made of SF nonwoven fabric of 2 cm width x 50 cm length was sewn on each side of the left and right sides of the opening. . In addition, the upper end of the strap-like locking member on the upper side was placed on the string-like locking member on the upper side and integrated to the end, and double-sided tape was attached to the end, and when worn, the double-sided tape at the end was attached to the center of the back of the hood and fixed. A flat rubber of 1 cm width and 10 cm length constituting the elastic material 12 was sewn to the hem of the side of the top (1). In addition, a flat rubber with a length of [waist dimension - 5 cm] and a width of 1 cm was inserted into the waist of the bottom 10 as an elastic material 13. The hem of the upper (1) is folded in a state of 10 cm, and the waist of the lower (10) is folded back to 15 cm, put in a packing bag, respectively, and each eletlet process is performed, and further sterilization process by ethylene oxide gas was carried out

Regarding this protective clothing, the wearability when the upper and lower garments were taken out from their respective packing bags and worn for work was evaluated by comparing them with the evaluation criteria in Table 1. The results are shown in Table 3, and the physical property values and configurations of the protective clothing are shown in Table 2.

[Example 3]

In the same manner as in Example 1, a spunbond nonwoven fabric was used as the front and back two nonwoven fabrics, and a melt blown nonwoven fabric was sandwiched therebetween to obtain an SMS nonwoven fabric adhered thereto.

On the other hand, the hot melt adhesive heated to 150° C. and melted was applied to the film side of the SF nonwoven fabric of Example 1 in a spray form from a T-die so that the application amount was 2 g/m 2 . After that, another spunbond nonwoven fabric was bonded to the film surface to which the hot melt adhesive was applied to obtain an SFS nonwoven fabric.

Using the SMS nonwoven fabric, the upper and lower garments of the protective clothing were cut and attached one after another with a sewing machine, and a hood was attached to the upper garment. The configuration of the hood was the same as that described in Example 1 except for the following points. That is, fasteners were sewn to the front center of the lower part of the hood and the front center of the top so that they could be opened and closed. When the fastener was closed, an opening measuring 14 cm in width x 10 cm in length was created in the center of the front of the hood. In addition, the location where the SF nonwoven fabric was used in Example 1 was replaced with the SFS nonwoven fabric, and a string locking tool made of 2 cm wide x 130 cm long SFS nonwoven fabric was sewn to the upper side of the opening, and the left and right sides of the opening were each sewn. A string-shaped locking ball with a width of 2 cm and a length of 50 cm was sewn to the side of the side. In addition, the upper end of the string locking member on the side was placed on the string locking member on the upper side and sewn to the end to be integrated, and the left and right strings were connected and fixed at the back of the head when worn. A flat rubber of 1 cm width and 10 cm length constituting the elastic material 12 was sewn to the hem of the side of the top (1). Further, a flat rubber of 1 cm width and 80 cm length was inserted into the waist of the bottom 10 as an elastic material 13, and a size adjustment tool was attached to the end. The hem of the upper (1) is folded in a state of being folded back by 5 cm, and the waist of the lower part (10) is folded by 10 cm, and put in a packing bag, respectively, and each is subjected to eletret processing, and further sterilized by ethylene oxide gas was carried out

Regarding this protective clothing, the upper and lower garments were taken out from their respective packing bags, and the wearing comfort when worn and worked was evaluated by comparing them with the evaluation criteria in Table 1. The results are shown in Table 3, and the physical property values and configurations of the protective clothing are shown in Table 2. Also, when wearing the protective clothing in this embodiment, the upper garment was taken out of the packing bag, first put on the coat hood, and passed through both arms, and then the open front fastener was pulled up to the front center opening of the hood and worn. After that, the bottom was taken out from the packing pocket and put on.

[Example 4]

In sewing the top and bottom of the protective clothing, the protective clothing was sewn, packed, and evaluated in the same manner as in Example 1, except that the raw material was stitched together with a main sewing machine so as to be covered with piping tape.

[Example 5]

Two spunbond nonwoven fabrics were used, and a hot melt adhesive melted by heating to 150° C. with a hot melt adhesive was applied in a spray form from a T-die so that the application amount was 1.5 g/m 2 on the first surface of one spunbond nonwoven fabric. Thereafter, the melt blown nonwoven fabric was bonded to the first surface of the spunbond nonwoven fabric coated with the hot melt adhesive. Further, the hot melt adhesive heated to 150° C. and melted was applied in a spray form from a T-die so that the application amount was 1.5 g/m 2 on the melt blow nonwoven fabric side of the obtained spunbond nonwoven fabric/melt blown nonwoven fabric. After that, another spunbond nonwoven fabric was bonded to the surface of the melt blown nonwoven fabric coated with the hot melt adhesive. The three-layer laminate of the obtained spunbond nonwoven fabric/melt blown nonwoven fabric/spanbond nonwoven fabric was wound up to obtain an SMS nonwoven fabric. The air permeability of this SMS nonwoven fabric was 100 cm 3 /cm 2 /sec.

On the other hand, the hot melt adhesive heated to 150° C. and melted with a hot melt adhesive machine was applied in a spray form from a T-die so that the application amount was 1 g/m 2 on the first surface of one spunbond nonwoven fabric. Thereafter, the film was bonded to the first surface of the spunbond nonwoven fabric coated with the hot melt adhesive to obtain an SF nonwoven fabric. The ventilation rate of this SF nonwoven fabric was 10 cm<3>/cm<2>/sec.

Using these SMS nonwoven fabrics and SF nonwoven fabrics, similarly to Example 2, protective clothing was sewn, packed, and evaluated.

[Example 6]

Two spunbond nonwoven fabrics were used and a hot melt adhesive melted by heating to 150° C. with a hot melt adhesive machine was applied in a spray form from a T-die so that the application amount was 2.5 g/m 2 on the first surface of one spunbond nonwoven fabric. . Thereafter, the melt blown nonwoven fabric was bonded to the first surface of the spunbond nonwoven fabric coated with the hot melt adhesive. Further, the hot melt adhesive heated to 150° C. and melted was applied in a spray form from a T-die so that the application amount was 2.5 g/m 2 on the melt blown nonwoven fabric side of the obtained spunbond nonwoven fabric/melt blown nonwoven fabric. After that, another spunbond nonwoven fabric was bonded to the surface of the melt blown nonwoven fabric coated with the hot melt adhesive. The three-layer laminate of the obtained spunbond nonwoven fabric/melt blown nonwoven fabric/spanbond nonwoven fabric was wound up to obtain an SMS nonwoven fabric. The air permeability of this SMS nonwoven fabric was 60 cm 3 /cm 2 /sec.

On the other hand, the hot melt adhesive heated to 150° C. and melted was applied to the film side of the SF nonwoven fabric of Example 1 in a spray form from a T-die so that the application amount was 2 g/m 2 . After that, another spunbond nonwoven fabric was bonded to the film surface to which the hot melt adhesive was applied to obtain an SFS nonwoven fabric.

Using these SMS nonwoven fabrics and SFS nonwoven fabrics, similarly to Example 3, protective clothing was sewn, packed, and evaluated.

[Comparative Example 1]

Using one layer of polyethylene flash spanned nonwoven fabric, the hooded top and bottom were sewn with an overlock sewing machine to obtain a protective clothing. The food|hood was set as left-right symmetrical shape as shown in FIG. 6, and was obtained by pasting two left and right sheets one after another. A 1cm wide x 60cm long flat rubber was inserted into the waist of the bottom. This hazmat suit was folded without folding the hem of the upper part, and the waist part of the lower part was also folded without being folded back, put in a packing bag, respectively, and subjected to eletret processing, and further sterilized by ethylene oxide gas.

This protective suit was subjected to the same wear test as the protective clothing of Examples 1 to 3 above. The results are shown in Table 3, and the physical property values and configurations of the protective clothing are shown in Table 2.

[Comparative Example 2]

Using the SMS nonwoven fabric obtained in Example 1, a protective suit was sewn in the same manner as in Example 1 except that the following points were changed. The hood had a shape in which the parietal part and the temporal part were sutured in the same manner as in Example 1, and an opening having a width of 15 cm x a length of 11 cm was formed in the center, but all were sewn with an SMS nonwoven fabric and finished without attaching a locking device. In addition, sewing was performed by ultrasonic welding. This hazmat suit was folded without folding the hem of the upper part, and the waist part of the lower part was also folded without being folded back, put in a packing bag, respectively, and subjected to eletret processing, and further sterilized by ethylene oxide gas.

This protective suit was subjected to the same wear test as the protective clothing of Examples 1 to 3 above. The results are shown in Table 3, and the physical property values and configurations of the protective clothing are shown in Table 2.

[Comparative Example 3]

The SF nonwoven fabric obtained in Example 1 was sewn up and down in an integrated protective suit. The top and bottom integrated type refers to the shape in which the hood, front body, back body, sleeves, and pants are integrated, and the front body refers to a type that can be opened and closed by sealing fasteners. The hood had a symmetrical shape as shown in Fig. 6, and two left and right sheets were attached one after another, and a string-like locking tool having a width of 2 cm and a length of 60 cm was sewn to the left and right of the opening with a SF nonwoven fabric similar to the length of a garment. This hazmat suit was folded and put in a packing bag to perform an electret process, and further, sterilization process by ethylene oxide gas was performed.

This protective suit was subjected to the same wear test as the protective clothing of Examples 1 to 3 above. The results are shown in Table 3, and the physical property values and configurations of the protective clothing are shown in Table 2.

[Reference Example 1]

Two spunbond nonwoven fabrics were used, and a hot melt adhesive melted by heating to 150° C. with a hot melt adhesive was applied in a spray form from a T-die so that the application amount was 2 g/m 2 on the first surface of one spunbond nonwoven fabric. Thereafter, the melt blown nonwoven fabric was bonded to the first surface of the spunbond nonwoven fabric coated with the hot melt adhesive. Further, the hot melt adhesive heated to 150° C. and melted was applied in a spray form from a T-die so that the application amount was 2 g/m 2 to the melt blow nonwoven fabric side of the obtained spunbond nonwoven fabric/melt blow nonwoven fabric. After that, another spunbond nonwoven fabric was bonded to the surface of the melt blown nonwoven fabric coated with the hot melt adhesive. The three-layer laminate of the obtained spunbond nonwoven fabric/melt blown nonwoven fabric/spanbond nonwoven fabric was wound up to obtain an SMS nonwoven fabric.

Using the SMS nonwoven fabric, the top and bottom of the protective suit were cut and glued together with an overlock sewing machine. The upper part was made into the shape shown in FIG. 1, and the lower part was made into the shape shown in FIG. An opening having a width of 15 cm and a length of 11 cm was formed in the center of the central portion of the hood. On the upper side of the opening, a string locking member constituting the upper side band member 4 made of the same nonwoven fabric with a width of 2 cm and a length of 130 cm is sewn, and the left and right side bands with a width of 2 cm and a length of 50 cm are also sewn on the left and right sides of the opening. A string-like locking tool constituting the member 5 was sewn together. In addition, the upper end of the string locking member constituting the side band member 5 is placed on the string locking member constituting the upper side band member 4 and integrated to the end, and the left and right strings are connected at the back of the head when worn so it was fixed

To the hem of the side of the top (1), 1 cm wide and 10 cm long flat rubber constituting the elastic material 12 (hem rubber) was sewn. A flat rubber 1 cm wide and 95 cm long, constituting the elastic material 13 (stretch rubber), was inserted into the waist of the bottom 10, and a size adjustment jig 11 was attached to the end.

The following steps (Phase 1) to (Phase 5) were performed on the top (1) of this protective clothing. That is, as shown in Fig. 9, the hem of the jacket was folded back 10 cm to the outside, so that the fold 39 of the back body was placed on the surface, and put into the packing bag as shown in Fig. 11 .

(Upper 1) Spread the front body up so that there are no wrinkles

(Upper 2) I fold the hem back toward the surface side.

(Upper 3) Fold the left and right sleeves inward.

(Upper 4) Fold the hood inward.

(Phase 5) The folds of (Phase 2) above are folded so that they overlap on top of the folds by folding the hood. It is inserted into the packing bag 11 so that the fold-back part of the back body becomes the top, and so that the fold may become the side of the outlet of the packing bag.

Moreover, the following (lower 1) - (lower 5) processes were performed. That is, as shown in Fig. 10, the waist of the bottom was folded back 25 cm outside, and folded so that the fold was placed on the surface, it was put in the packing bag. Each of these two packing bags was sterilized.

(Bottom 1) Spread the back side up so that there are no wrinkles.

(lower 2) I fold a waist back to the surface side.

(Bottom 3) Fold the left and right side ribs inward.

(Bottom 4) Fold up from the toes.

(Lower 5) Insert into the packing bag 18 so that the fold of the said (lower 2) may become the outlet side of the packing bag.

Regarding the protective clothing packed as described above, the top and bottom were taken out from each packing bag, worn, and evaluated. The results are shown in Table 4.

[Reference Example 2]

Using the same SMS nonwoven fabric used in Reference Example 1, except that the following points were changed, a protective suit was obtained and packed in the same manner as in Reference Example 1. In other words, the fold of the hem of the top was changed to 18cm. For the bottom, a flat rubber 1 cm wide was cut into a length of 60 cm and inserted into the waist, and the waist was folded and packed by 10 cm.

As a result of measuring the wearing time when the upper and lower parts of the protective suit are taken out from each packing bag and worn, a size adjustment jig is not attached, so it takes time to pass through the groin, and the length of the bottom 36 is a reference example As it was longer than 1, it took some time to wear, but there was almost no adhesion of similar contaminants. Table 4 shows the evaluation results.

[Reference Example 3]

Using the SMS nonwoven fabric obtained in Reference Example 1, a protective suit comprising an open front top and bottom was sewn. The top has a shape that can release the center of the front, and can be opened and closed by sealing fasteners. To the hem, similarly to Reference Example 1, a rubber hem was sewn to the hem of the side. The same preparation as in Reference Example 1 was made except that, with the front fasteners of the jacket closed, the hem of the protective suit upper: 8 cm cm and the protective suit lower: 15 cm were folded and packed.

The wearing time at the time of taking out the upper and lower parts of the protective clothing from each packing bag and putting it on was measured. As the number of wearing sequences of opening and closing the fastener on the front body of the jacket increased by 2 steps, it took more time to put on, but there was almost no attachment of similar contaminants. Table 4 shows the evaluation results.

[Reference Example 4]

The material of one layer of polyethylene flash spanned nonwoven fabric was used, and the top and bottom with a hood were sewn with a main sewing machine. A 1cm wide x 60cm flat rubber was inserted into the waist of the bottom. Regarding this hazmat suit, the hem of the top was folded without folding back, and the waist of the bottom was also folded without folding back and put in a packing bag, respectively, and sterilized.

The same wear test as the protective suit was conducted. Table 4 shows the evaluation results. The number of wearing order is the same as in Reference Example 1, but adhesion of similar contaminants to the upper hem, lower waist, lower hem, and lower buttocks was observed. It was difficult to wear without contacting the outside when wearing, for example, when both the top and bottom contact the outer side of the protective suit at the time of opening, and there were many places in contact with the outer side. Moreover, the wearing time was long.

[Reference Example 5]

Using the SMS nonwoven fabric obtained in Reference Example 1, an upper and lower integrated protective suit was sewn, and the same wear test as that of the protective suit was performed. Table 4 shows the evaluation results.

As shown in FIGS. 13 and 14 , adhesion of similar contaminants was observed near the front center of the protective suit, at the top of the hood, on the upper body of the back body, and at the location where the hood is attached. When wearing, it is thought that the hood was put on, the fasteners were raised, or the hood and the front center were adjusted, so that these parts had to be contacted. In addition, when opening and taking out the protective clothing, it takes time to find a place where similar contaminants can be less attached to the outside of the protective clothing, and it takes an unreasonable posture so that the legs do not contact the floor even when worn. time has grown As a result, there were many contact points to the outside.

[Reference Example 6]

The upper and lower integrated protective clothing was sewn from the SMS nonwoven fabric obtained in Reference Example 1. However, a different hood was used for the hood, and the protective suit itself was sterilized by putting it in a packing bag as an integrated top and bottom without a hood. In order of wearing, first put the hood on the head and secure it with a string. Next, put on a protective suit and put everything inside the suit so that the hood doesn't come out. The same wear test as the protective suit was conducted. Table 4 shows the evaluation results.

Adhesion was confirmed at the apex of the hood, near the front center of the top and bottom uniform clothes, and around the neck of the top and bottom uniform clothes. It is thought that it was necessary to touch these parts because the hood was used to adjust the wearing state, and the hood was put inside the top and bottom uniform. In addition, it takes time to find a place that is not attached to the outside when opening, and the leg part contacts the bottom surface even when worn, and the wearing time is prolonged because the hood is put inside the protective suit. As a result, there were many contact points to the outside.

(Industrial Applicability)

The protective clothing of the present invention is excellent in wearing comfort and also suppresses the occurrence of dew, so that it is suitably worn in a closed space such as a clean room.

1: Top of protective clothing
2: Hood
3: opening
4: Upper side band-shaped member
5: Left and right side band members
6: Low breathable non-woven fabric
7: High ventilation non-woven fabric
8: fabric constituting the part corresponding to the parietal part (parietal part)
9: Fabric constituting the part corresponding to the temporal region (hood side)
10: hazmat suit bottoms
11: Dimension adjustment jig
12: Stretch material of the side hem of the top
13: stretch material of the waist of the bottom
14: top hem
15: The amount of folding of the top
16: The amount of folding of the bottom
17: West end of bottoms
18: packing bag
19: notch
A: narrow bow width
B: Distance between the forehead and lower jaw
C: The coupling portion of the upper band-shaped member and the left and right side band-shaped members

Claims (11)

A protective clothing comprising a hood combined with a hood consisting of a nonwoven fabric having an airflow rate of 20cm3/cm2/sec or more and 150cm3/cm2/sec or less and a ventilation rate of 0cm3/cm2/sec or more and 19cm3/cm2/sec or less, the hood has an opening at the center of the wearer's face, an upper side of the opening, and a belt-shaped member on the lower side of the left and right sides of the opening, wherein the two belt-shaped members are respectively coupled or coupled at the left and right temporal parts, Protective clothing characterized in that. The method of claim 1,
The opening is formed in a size of 13 cm to 16 cm in width and 9 cm to 13 cm in length at the center of the front of the hood, and the nonwoven fabric having the ventilation amount of 0 cm 3 /cm 2 /sec or more and 19 cm 3 /cm 2 /sec or less is formed around at least a part of the opening. protective clothing placed on the 3. The method according to claim 1 or 2,
A protective clothing comprising: an upper garment having a length corresponding to the vicinity of a wearer's buttocks, wherein the hood is coupled to the upper garment. 5. The method according to claim 3 or 4,
A protective clothing that is folded and packaged in a packing bag so that the fold formed by folding the hem of the upper garment back to the outside is arranged on the surface. 5. The method according to claim 3 or 4,
A protective suit that includes a bottom that covers from the waist to the ankle. 6. The method of claim 5,
A hazmat suit with a size adjustment jig installed at the waist of the lower garment. 7. The method according to claim 5 or 6,
A protective clothing that is folded and packaged in a packing bag so that the fold formed by folding the waist part of the lower garment back to the outside is arranged on the surface. 8. The method according to claim 4 or 7,
The protective clothing is packed so that when the packing bag is opened, the folds of the upper part and/or the folds of the lower part are exposed. 9. The method according to any one of claims 1 to 8,
A protective suit that has been sterilized. 10. The method according to any one of claims 1 to 9,
A hazmat suit used in a clean room. 11. The method according to any one of claims 1 to 10,
Disposable protective clothing.

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