WO2022176649A1 - Vêtement de protection - Google Patents

Vêtement de protection Download PDF

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Publication number
WO2022176649A1
WO2022176649A1 PCT/JP2022/004479 JP2022004479W WO2022176649A1 WO 2022176649 A1 WO2022176649 A1 WO 2022176649A1 JP 2022004479 W JP2022004479 W JP 2022004479W WO 2022176649 A1 WO2022176649 A1 WO 2022176649A1
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WO
WIPO (PCT)
Prior art keywords
protective clothing
fabric
nonwoven fabric
sheet
meltblown nonwoven
Prior art date
Application number
PCT/JP2022/004479
Other languages
English (en)
Japanese (ja)
Inventor
雅之 北川
祐一郎 林
寛貴 武田
Original Assignee
東レ株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 東レ株式会社 filed Critical 東レ株式会社
Priority to JP2023500721A priority Critical patent/JPWO2022176649A1/ja
Publication of WO2022176649A1 publication Critical patent/WO2022176649A1/fr

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    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
    • A41D13/002—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches with controlled internal environment
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D27/00—Details of garments or of their making
    • A41D27/12—Shields or protectors
    • A41D27/13—Under-arm shields
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D31/00—Materials specially adapted for outerwear
    • A41D31/02—Layered materials
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D31/00—Materials specially adapted for outerwear
    • A41D31/04—Materials specially adapted for outerwear characterised by special function or use
    • A41D31/10—Impermeable to liquids, e.g. waterproof; Liquid-repellent
    • A41D31/102—Waterproof and breathable
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/16—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion

Definitions

  • the present invention relates to protective clothing. More specifically, the present invention relates to protective clothing with excellent breathability, water pressure resistance, and dust resistance.
  • Patent Literature 1 discloses a dustproof garment that can suppress dust generation and has improved breathability.
  • the dustproof clothing described in Patent Document 1 has a mesh part to ensure breathability.
  • this dustproof clothing does not have sufficient water resistance. Therefore, this dust-proof clothing is unsuitable for work involving water, and there is a problem that water easily enters the dust-proof clothing, and the wearer is easily contaminated, the workability is significantly reduced, and the wearer is likely to feel uncomfortable. .
  • the present invention was made in view of such conventional problems, and aims to provide protective clothing with excellent breathability, water pressure resistance, and dust resistance.
  • a protective clothing according to one aspect of the present invention for solving the above problems is a protective clothing having a body portion and a pair of sleeve portions, and has a first sheet-like material and a second sheet-like material, Of the pair of sleeves, a portion of one sleeve and a portion of the body constitute a portion A that covers one armpit of the wearer when the protective clothing is worn.
  • a part of the other sleeve and a part of the body constitute a part B that covers the other armpit of the wearer when wearing the protective clothing, and the first sheet-like
  • the object is attached so as to cover the part A at a position above the part A in the length direction of the protective clothing, and the second sheet-like material is attached to the part B in the length direction of the protective clothing.
  • the protective clothing is attached so as to cover the portion B at the upper position of the above, and the protective clothing includes a first fabric having an air permeability of 30 cm 3 /cm 2 /sec or more and a first fabric having a water pressure resistance of 400 mmH 2 0 or more.
  • first fabric is disposed in the portion A and the portion B and has a laminated structure of a first spunbond nonwoven fabric and a first meltblown nonwoven fabric;
  • the second fabric constitutes the first sheet-like article and the second sheet-like article, and is arranged in a portion other than the portion A and the portion B, and is protective clothing.
  • FIG. 1 is a schematic front view of protective clothing according to one embodiment (first embodiment) of the present invention.
  • FIG. 2 is a schematic side view for explaining a sheet-like object.
  • FIG. 3 is a schematic side view for explaining a sheet-like object.
  • FIG. 4 is a conceptual diagram of an SEM image field of view of a cross-section of fabric.
  • 5 is a conceptual diagram of the front surface of the protective clothing of Comparative Example 1.
  • a protective garment of one embodiment of the present invention has a body portion and a pair of sleeve portions.
  • the protective clothing has a first sheet-like material and a second sheet-like material.
  • part of one of the sleeves and part of the body constitute a portion A that covers one armpit of the wearer when the protective clothing is worn.
  • part of the other sleeve and part of the body constitute a portion B that covers the other armpit of the wearer when the protective clothing is worn.
  • the first sheet-like material is attached so as to cover the portion A at a position above the portion A in the lengthwise direction of the protective clothing.
  • the second sheet-like material is attached so as to cover the portion B at a position above the portion B in the lengthwise direction of the protective clothing.
  • the protective clothing has a first fabric with an air permeability of 30 cm 3 /cm 2 /sec or more and a second fabric with a water pressure resistance of 400 mmH 2 0 or more.
  • a first fabric is located in portion A and portion B and has a laminate structure of a first spunbond nonwoven and a first meltblown nonwoven.
  • the second fabric constitutes the first sheet-like material and the second sheet-like material, and is arranged in portions other than the portion A and the portion B. Each of these will be described below.
  • the “body portion” refers to a portion above the waist of the wearer when the protective clothing is worn by the wearer.
  • the body size of the wearer is not particularly limited.
  • a wearer having the following body dimensions is exemplified for clarity of explanation. That is, the wearer had a height of 171 cm, an upper arm length of 32 cm, a neck-acromion straight line distance of 15 cm, a neck height of 140 cm, a sternum midpoint height of 128 cm, and an anterior armpit.
  • the width is 34 cm
  • the straight distance between the lower corners of the scapula is 20 cm
  • the thigh length is 44 cm
  • the tibia upper edge height is 43 cm.
  • FIG. 1 is a schematic front view of the protective clothing 1 of this embodiment.
  • the protective clothing 1 has a body portion 22 and a pair of sleeve portions 21 .
  • a portion of one of the sleeves 21 and a portion of the body portion 22 form a portion A that covers one armpit of the wearer when the protective clothing 1 is worn.
  • a part of the other sleeve part 21 and a part of the body part 22 of the pair of sleeve parts 21 form a part B that covers the other armpit of the wearer when the protective clothing 1 is worn.
  • many sweat glands are concentrated in the vicinity of the armpits. Therefore, the wearer is more sensitive to heat in the areas around the armpits than in other areas.
  • the first fabric is used for the portions A and B of the body portion 22 and the pair of sleeve portions 21 .
  • This allows the temperature and humidity in the vicinity of the wearer's armpits to approximate the temperature and humidity of the outside air.
  • the protective clothing 1 of this embodiment has excellent comfort.
  • the portions A and B are not particularly limited in shape, size and number as long as they cover part or all of the armpits.
  • a second fabric with high water pressure resistance is arranged in the portion C other than the portions A and B.
  • the second fabric constitutes the sheets (the first sheet 4a and the second sheet 4b) and covers the portion A and the portion B, respectively.
  • part A and part B can be adjusted as appropriate to obtain the desired breathability.
  • portion A and the portion B which are 15 cm long and 10 cm wide, are provided is exemplified.
  • vertical refers to a direction substantially perpendicular to the front-rear direction of the protective clothing
  • horizontal refers to a direction substantially parallel to the front-rear direction of the protective clothing.
  • the protective clothing 1 is provided with a first sheet-like material 4a and a second sheet-like material 4b that cover the portion A and the portion B, respectively.
  • the first sheet-like material 4a and the second sheet-like material 4b are made of the second fabric.
  • FIG. 2 is a schematic side view for explaining the first sheet-like material 4a.
  • the first sheet 4a covers the portion A and the second sheet 4b covers the portion B.
  • FIG. 2 illustrates a mode in which the entire portion A is covered with the first sheet-like material 4a.
  • FIG. 2 shows the connection points of the sleeve portion 21 and the body portion 22 of the protective clothing 1 so that the first sheet-like material 4a attached to the portion A faces the front.
  • the manner in which the portion B is covered with the second sheet-like material 4b is the same as the manner in which the portion A is covered with the first sheet-like material 4a. Therefore, in the description with reference to FIG. 2, the description of the second sheet-like material 4b and the portion B will be omitted as appropriate.
  • the first sheet-like material 4a is preferably attached to the sleeve portion at a position above the portion A in the length direction of the protective clothing 1 (first attachment portion 41). As a result, the first sheet-like material 4a can prevent water from entering the protective clothing 1 from the portion A, for example, when water splashes from above.
  • the method of attaching the first sheet-like material 4a to the protective clothing 1 is not particularly limited.
  • the first sheet-like material 4a may be sewn onto the protective clothing 1, or may be attached with an adhesive or the like.
  • the first sheet-like material 4a may be detachably attached to the protective clothing 1 by a hook-and-loop fastener, a button, or the like.
  • the first sheet-like material 4a has a body portion 22 or a sleeve portion so as to form a gap G for communication between the portion A and the outside at a lateral position or a lower position in the length direction of the protective clothing 1 with respect to the portion A. 21 (second attachment portion 42).
  • the first sheet-like material 4 a in addition to the first attachment portion 41 at the upper position, the first sheet-like material 4 a extends over the sleeve portion 21 and the body portion 22 at the second attachment portions 42 at the lateral positions on both sides of the protective clothing 1 .
  • a mode attached to is exemplified.
  • FIG. 3 is a schematic side view for explaining the first sheet-like material 4a.
  • FIG. 3 is a schematic side view for explaining the first sheet-like material 4a.
  • the connection points of the sleeve portion 21 and the body portion 22 of the protective clothing 1 are shown so that the first sheet-like material 4a attached to the portion A faces the front. 3, in addition to the upper first attachment portion 41 attached to the sleeve portion 21, the first sheet-like material 4a is attached to the body portion 22 of the protective clothing 1 at the lower second attachment portion 42. An attached aspect is illustrated. As a result, a gap G is formed between the first sheet material 4a and the protective clothing 1. As shown in FIG. Via the portion A, the gap G enables exchange of air and moisture such as sweat of the wearer between the inside of the protective clothing 1 and the outside of the protective clothing 1 . As a result, the protective clothing 1 tends to exhibit excellent breathability and is highly comfortable for the wearer.
  • the first sheet-like material 4a when the first sheet-like material 4a is attached to the protective clothing 1 also in the horizontal position and the lower position, the first sheet-like material 4a is attached to the protective clothing 1 only in the upper position.
  • the first sheet-like material 4a easily follows the protective clothing 1 when the wearer works, and the portion A is less likely to be exposed to the outside.
  • the protective clothing 1 when water falls from above or obliquely above, the protective clothing 1 easily protects the portion A with the first sheet-like material 4a, and water does not enter the protective clothing 1 from the portion A. Easy to prevent.
  • the first sheet-like material 4a can increase the water pressure resistance of the portion A.
  • the manner in which the second sheet-like material 4b (see FIG. 1) covers the portion B is the same as the manner in which the first sheet-like material 4a covers the portion A described above with reference to FIGS. . That is, the second sheet-like material 4b is preferably attached to the sleeve portion 21 at a position above the portion B in the length direction of the protective clothing 1 (first attachment portion). As a result, the second sheet-like material 4b can prevent water from entering the protective clothing 1 from the portion B, for example, when water splashes from above.
  • the method of attaching the second sheet-like material 4b to the protective clothing 1 is not particularly limited.
  • the second sheet-like material 4b may be sewn onto the protective clothing 1, or may be attached with an adhesive or the like.
  • the second sheet-like material 4b may be detachably attached to the protective clothing 1 by a hook-and-loop fastener, a button, or the like.
  • the second sheet-like material 4b like the first sheet-like material 4a (see FIGS. 2 and 3), is positioned laterally or below the part B in the lengthwise direction of the protective clothing 1. It is preferably attached to the body part 22 so as to form a gap for communication between the two (second attachment part). As a result, a gap is formed between the second sheet material 4b and the protective clothing 1. As shown in FIG. Via the portion B, the air gap enables exchange of air and moisture such as sweat of the wearer between the inside of the protective clothing 1 and the outside of the protective clothing 1 . As a result, the protective clothing 1 tends to exhibit excellent breathability and is highly comfortable for the wearer.
  • the second sheet-like material 4b when the second sheet-like material 4b is attached to the protective clothing 1 at the horizontal position and the lower position as well, the second sheet-like material 4b is attached to the protective clothing 1 only at the upper position.
  • the second sheet-like material 4b easily follows the protective clothing 1 when the wearer works, and the portion B is less likely to be exposed to the outside.
  • the protective clothing 1 when water falls from above or obliquely above, the protective clothing 1 easily protects the portion B of the protective clothing 1 with the second sheet-like material 4b, and prevents water from entering the protective clothing 1 from the portion B. Easy to prevent.
  • the second sheet-like material 4b can increase the water pressure resistance of the portion B.
  • the air permeability of the first fabric may be 30 cm 3 /cm 2 /sec or more, preferably 60 cm 3 /cm 2 /sec or more, more preferably 80 cm 3 /cm 2 /sec or more. .
  • the air permeability of the first fabric is preferably 150 cm 3 /cm 2 /s or less, more preferably 130 cm 3 /cm 2 /s or less, and 110 cm 3 /cm 2 /s or less. is more preferred.
  • the protective clothing can bring the environment inside the clothing closer to the environment outside the clothing when working in the protective clothing. As a result, the protective garment has excellent comfort.
  • the method of measuring air permeability is not particularly limited.
  • the air permeability can be measured using a permeability tester (FX3300, manufactured by Takayama Lead Co., Ltd.) under the condition of a pressure of 125 Pa.
  • the first fabric has a laminated structure of a first spunbond nonwoven fabric and a first meltblown nonwoven fabric.
  • the bulk density of the first meltblown nonwoven fabric is preferably 0.05 g/cm 3 or more, and 0 It is more preferably 0.08 g/cm 3 or more, and even more preferably 0.10 g/cm 3 or more.
  • the bulk density of the first meltblown nonwoven fabric is preferably 0.18 g/cm 3 or less, and 0.16 g/cm It is more preferably 3 or less, and even more preferably 0.15 g/cm 3 or less.
  • the bulk density is calculated from the basis weight (g/m 2 )/thickness (m) based on the basis weight measured according to JIS L 1913:2010 and the thickness measured according to JIS L 1085:1998. do.
  • the thickness of the first melt blown nonwoven fabric is preferably 70 ⁇ m or more, more preferably 80 ⁇ m or more, and 90 ⁇ m or more. is more preferred.
  • the thickness of the first melt blown nonwoven fabric is preferably 200 ⁇ m or less, more preferably 160 ⁇ m or less, and 140 ⁇ m or less. is more preferable.
  • the average single fiber diameter of the fibers constituting the first meltblown nonwoven fabric is preferably 3 ⁇ m or more, more preferably 4 ⁇ m or more, and even more preferably 6 ⁇ m or more.
  • the average single fiber diameter of the fibers constituting the first melt blown nonwoven fabric is preferably 15 ⁇ m or less, more preferably 10 ⁇ m or less, and even more preferably 8 ⁇ m or less.
  • the strength of the first melt blown nonwoven fabric is more excellent.
  • the first meltblown nonwoven fabric has a large opening size. As a result, the protective clothing has improved breathability in the portion where the first fabric is used.
  • the average single fiber diameter is equal to or less than the above upper limit, the opening size of the first melt blown nonwoven fabric is small. As a result, the protective clothing has better dust resistance in the areas where the first fabric is used.
  • the average single fiber diameter is determined by taking 10 images at a magnification of 500 using a scanning electron microscope (SEM) (SU3800, manufactured by Hitachi High-Technologies Corporation) and measuring 15 fibers per image. After measuring the fiber diameter, it can be calculated from the average of 150 measurements.
  • SEM scanning electron microscope
  • the material of the fibers constituting the first meltblown nonwoven fabric is not particularly limited.
  • fiber materials include polyolefins such as polyethylene and polypropylene, polyesters such as polyethylene terephthalate and polylactic acid, polycarbonate, polystyrene, polyphenylene sulfite, fluororesins, and mixtures thereof.
  • the main component of the fiber material is a polyolefin-based resin from the viewpoint of the productivity of the fabric and the texture of the fabric.
  • the polyolefin-based resin is preferably polypropylene from the viewpoint that dust resistance is likely to be improved by electret processing.
  • the first melt-blown nonwoven fabric containing a polyolefin resin as a main component means that the first melt-blown nonwoven fabric contains a polyolefin resin in an amount of 80% by mass or more with respect to the entire first melt-blown nonwoven fabric. It means to contain.
  • the first meltblown nonwoven fabric preferably contains 90% by mass or more of the polyolefin resin relative to the entire first meltblown nonwoven fabric, and more preferably consists of only the polyolefin resin.
  • the meltblown nonwoven fabric layer is made of only a polyolefin resin
  • the meltblown nonwoven fabric may contain an additive such as a hindered amine as long as the effects of the present embodiment are not impaired.
  • the first meltblown nonwoven fabric can be obtained by a meltblowing method.
  • the meltblowing method is generally a method in which a thermoplastic polymer extruded from a spinneret is jetted with hot air to make it finer into fibers, and a web is formed by utilizing the self-bonding properties of these fibers.
  • Spinning conditions in the meltblowing method include polymer discharge rate, nozzle temperature, air pressure, and the like.
  • a nonwoven fabric having a desired fiber diameter can be obtained by optimizing these spinning conditions. Specifically, when producing the fibers used in the first meltblown nonwoven fabric, it is easy to reduce the fineness of the fibers by reducing the amount of resin discharged, increasing the discharge speed, and increasing the degree of stretching of the fibers.
  • the first meltblown nonwoven fabric is preferably an electrically charged meltblown nonwoven fabric. Since the first meltblown nonwoven fabric is an electrically charged meltblown nonwoven fabric, the protective clothing can achieve both high air permeability and high dust resistance of the first fabric.
  • the material of the fibers constituting the first spunbonded nonwoven fabric is not particularly limited.
  • fiber materials include polyolefins such as polyethylene and polypropylene, polyesters such as polyethylene terephthalate and polylactic acid, polycarbonate, polystyrene, polyphenylene sulfite, fluororesins, and mixtures thereof.
  • the fiber material is preferably polyolefin from the viewpoint of fabric productivity and texture.
  • a spunbond nonwoven fabric is a nonwoven fabric obtained by the spunbond method.
  • the method for producing the spunbond nonwoven fabric is not particularly limited.
  • a spunbonded nonwoven fabric is produced by melting a polymer composition, extruding it through a spinneret, stretching it, stacking it on a conveyor belt or the like, and forming it into a web (spunbonding method). It is obtained by fusing fibers together by a method such as embossing.
  • the average single fiber diameter of the fibers constituting the first spunbond nonwoven fabric is preferably 18 ⁇ m or more, more preferably 19 ⁇ m or more, and even more preferably 20 ⁇ m or more. Also, the average single fiber diameter of the fibers is preferably 30 ⁇ m or less, more preferably 28 ⁇ m or less, and even more preferably 26 ⁇ m or less.
  • the first spunbond nonwoven fabric can have an increased sheet strength and a larger opening size. Therefore, the protective clothing has improved breathability in the region where the first fabric is used.
  • the opening size of the first spunbonded nonwoven fabric is small. Therefore, the protective clothing is more dustproof.
  • the first spunbond nonwoven fabric may be imparted with functions such as water repellency, oil repellency, antistatic, flame retardancy, antibacterial and antifungal properties, for example.
  • the method of laminating the first spunbond nonwoven fabric and the first meltblown nonwoven fabric in the manufacturing process of the first fabric is not particularly limited.
  • the first fabric preferably comprises the first meltblown nonwoven fabric having charge.
  • the first meltblown nonwoven fabric and the first spunbond nonwoven fabric which are separately produced and have an electrostatic charge, need to be bonded together using an adhesive (first adhesive) or bonded together by embossing. be.
  • the first meltblown nonwoven fabric and the first spunbond nonwoven fabric are preferably bonded with an adhesive (first adhesive).
  • first adhesive an adhesive
  • the content of the adhesive contained between the layers of the first meltblown nonwoven fabric and the first spunbond nonwoven fabric is preferably 0.5 g/m 2 or more, and is 1.0 g/m 2 or more. is more preferable.
  • the adhesive content is preferably 5.0 g/m 2 or less, more preferably 2.0 g/m 2 or less.
  • the content of the adhesive is equal to or higher than the above lower limit, the interlayer adhesion between the first spunbond nonwoven fabric and the first meltblown nonwoven fabric is more excellent.
  • the protective clothing is less susceptible to delamination when the wearer works while wearing the protective clothing.
  • the content of the adhesive is equal to or less than the above upper limit value, the first fabric has high breathability. As a result, the first fabric has excellent flexibility.
  • the first fabric may further comprise a third spunbond nonwoven fabric.
  • the first fabric preferably comprises a first spunbond nonwoven fabric, a first meltblown nonwoven fabric and a third spunbond nonwoven fabric laminated in this order.
  • the protective garment When such a first fabric is used to fabricate a protective garment such that the first spunbond nonwoven is positioned on the wearer's side, the protective garment will have a third spunbond nonwoven further outwardly of the first meltblown nonwoven. A nonwoven is placed.
  • the protective garment tends to protect the first meltblown nonwoven from external stress by the third spunbond nonwoven. Therefore, the performance of the protective clothing, such as dust resistance, is less likely to deteriorate due to scratches on the first meltblown nonwoven fabric. Furthermore, such protective clothing has excellent abrasion resistance performance.
  • the third spunbonded nonwoven fabric may be the same as the first spunbonded nonwoven fabric.
  • the first fabric may consist of only the first spunbond nonwoven fabric and the first meltblown nonwoven fabric.
  • the first meltblown nonwoven fabric is preferably in direct contact with the sheet material.
  • the protective clothing of this embodiment is superior in comfort and productivity compared to protective clothing in which three-layer fabrics of spunbond nonwoven fabric, meltblown nonwoven fabric, and spunbond nonwoven fabric are arranged in portions A and B. It becomes a thing. This is because the first fabric, which is composed only of the first spunbond nonwoven and the first meltblown nonwoven, has fewer spunbond nonwovens than the three-layer fabric described above, thus improving breathability and productivity. This is due to the fact that it has excellent properties.
  • the first fabric is the first spunbond nonwoven fabric. And even if it is composed only of the first meltblown nonwoven fabric, it is possible to prevent the meltblown nonwoven fabric of the first fabric from being exposed on the surface of the protective clothing. Therefore, the durability of the protective clothing of this embodiment is approximately the same as that of the protective clothing in which the three-layered fabric is arranged in the portions A and B.
  • the second fabric of the protective clothing of the present embodiment may have a lower limit of water pressure resistance of 400 mmH2O or more, preferably 700 mmH2O or more, and more preferably 1000 mmH2O or more.
  • the upper limit of water pressure resistance of the second fabric is not particularly limited.
  • the water pressure resistance of the second fabric is preferably 2000 mmH2O or less, more preferably 1500 mmH2O or less. Since the water pressure resistance is equal to or higher than the above lower limit value, the protective clothing exhibits excellent water pressure resistance. On the other hand, since the water pressure resistance is equal to or less than the upper limit value described above, the productivity of the fabric is improved, thereby improving the productivity of the protective clothing.
  • the method for measuring the water pressure resistance is not particularly limited, but in the present application, the water pressure resistance is measured using a Hydrotester (FX3000-IV, manufactured by Texttest) according to JIS L 1092:2009 low pressure method. adopted.
  • the second fabric is preferably made of non-woven fabric.
  • the protective clothing can increase the tensile strength and tear strength of the fabric, making it more durable.
  • the protective clothing is more dustproof and flexible.
  • the second fabric is made of nonwoven fabric, it preferably has a laminated structure of the second spunbond nonwoven fabric and the second meltblown nonwoven fabric. As a result, the protective clothing can increase the tensile strength and tear strength of the fabric, making it more durable. Also, the protective clothing is more dustproof and flexible.
  • the average single fiber diameter of the fibers constituting the second melt-blown nonwoven fabric is preferably 0.1 ⁇ m or more, more preferably 0.4 ⁇ m or more, and 0.8 ⁇ m or more. is more preferred.
  • the average single fiber diameter of the fibers constituting the second meltblown nonwoven fabric is preferably 6.0 ⁇ m or less, more preferably 4.0 ⁇ m or less, and even more preferably 3.0 ⁇ m or less.
  • the material of the fibers that make up the second meltblown nonwoven fabric is not particularly limited.
  • fiber materials include polyolefins such as polyethylene and polypropylene, polyesters such as polyethylene terephthalate and polylactic acid, polycarbonate, polystyrene, polyphenylene sulfite, fluororesins, and mixtures thereof.
  • the main component of the fiber material is a polyolefin-based resin from the viewpoint of the productivity of the fabric and the texture of the fabric.
  • the second melt-blown nonwoven fabric is mainly composed of polyolefin resin, and the second melt-blown nonwoven fabric contains polyolefin resin in the second melt-blown nonwoven fabric. It means to contain.
  • the second meltblown nonwoven fabric preferably contains 90% by mass or more of the polyolefin resin with respect to the entire second meltblown nonwoven fabric, and more preferably consists of only the polyolefin resin.
  • the second meltblown nonwoven fabric can be obtained in the same manner as the first meltblown nonwoven fabric.
  • the material of the fibers constituting the second spunbonded nonwoven fabric is not particularly limited.
  • fiber materials include polyolefins such as polyethylene and polypropylene, polyesters such as polyethylene terephthalate and polylactic acid, polycarbonate, polystyrene, polyphenylene sulfite, fluororesins, and mixtures thereof.
  • the fiber material is preferably polyolefin from the viewpoint of fabric productivity and texture.
  • the average single fiber diameter of the fibers constituting the second spunbond nonwoven fabric is preferably 6.5 ⁇ m or more, more preferably 7.5 ⁇ m or more, and even more preferably 8.4 ⁇ m or more. Also, the average single fiber diameter of the fibers is preferably 11.9 ⁇ m or less, more preferably 11.2 ⁇ m or less, and even more preferably 10.6 ⁇ m or less.
  • the second spunbond nonwoven fabric having an average single fiber diameter of not less than the above-described lower limit value can increase the tensile strength and tear strength of the fabric. This results in a more robust protective garment.
  • the average single fiber diameter is equal to or less than the above upper limit, the opening size of the second spunbonded nonwoven fabric is small. Therefore, in the protective clothing, the dust resistance of the second fabric is superior, and the flexibility of the portion using the second fabric is further improved.
  • the second spunbond nonwoven fabric may be imparted with functions such as water repellency, oil repellency, antistatic, flame retardancy, antibacterial and antifungal properties.
  • the second spunbond nonwoven and the second meltblown nonwoven may be directly laminated or adhered by an adhesive (second adhesive).
  • the second fabric preferably has a middle layer and respective outer layers provided on both surfaces of the middle layer.
  • each outer layer is preferably the second spunbond nonwoven, and the middle layer comprises one or more layers of the second meltblown nonwoven.
  • second spunbond nonwoven fabric/second meltblown nonwoven fabric/second spunbond nonwoven fabric As a specific layer structure, second spunbond nonwoven fabric/second meltblown nonwoven fabric/second spunbond nonwoven fabric, second spunbond nonwoven fabric/second meltblown nonwoven fabric/second meltblown nonwoven fabric/second spunbond nonwoven fabric bonded nonwoven fabric, second spunbond nonwoven fabric/second meltblown nonwoven fabric/second meltblown nonwoven fabric/second meltblown nonwoven fabric/second spunbond nonwoven fabric, and the second fabric has water pressure resistance. It is preferably 1000 mmH2O .
  • the number and types of middle layers are not particularly limited.
  • the content of the second melt blown nonwoven fabric is preferably 1% by mass or more and 20% by mass or less, and 5% by mass or more and 15% by mass or less, relative to the total mass of the second fabric. is more preferable.
  • the content of the second spunbond nonwoven fabric in the second fabric is preferably more than 80% by mass and less than 99% by mass.
  • the above content is the total content of the plurality of second meltblown nonwoven fabrics when the second fabric contains a plurality of second meltblown nonwoven fabrics. When included, it is the total content of the plurality of second spunbond nonwoven fabrics.
  • the content of the adhesive contained between the layers of the second spunbond nonwoven fabric and the second meltblown nonwoven fabric is preferably greater than 0 g/m 2 and less than or equal to 0.4 g/m 2 . Since the content of the adhesive is equal to or less than the above upper limit, the second cloth has extremely excellent flexibility. For the same reason, the adhesive content is more preferably 0.2 g/m 2 or less, and it is particularly preferred that no adhesive is used.
  • the second fabric is used as part C of the protective clothing, the first sheet-like material 4a, and the second sheet-like material 4b (see FIG. 1). requires high water pressure resistance.
  • the breathability of the protective garment 1 is achieved by the first fabric arranged in the part A. As shown in FIG. Therefore, the second fabric does not require high breathability compared to the first fabric.
  • the second adhesive is not particularly limited.
  • the second adhesive is a hot-melt adhesive or the like containing polyethylene as a main component.
  • the method of laminating the second spunbond nonwoven fabric and the second meltblown nonwoven fabric is not particularly limited as long as it does not impair the effects of the present embodiment.
  • the second meltblown nonwoven fabric and the second spunbond nonwoven fabric has a surface roughness measured by the KES method of 1.0 ⁇ m or more. It is more preferably 6 ⁇ m or more. Also, the surface roughness is preferably 3.0 ⁇ m or less, more preferably 2.8 ⁇ m or less.
  • the surface roughness is equal to or less than the above upper limit, foreign matter such as dust is less likely to adhere to the second cloth, and foreign matter such as dust adheres to the second cloth, and is easy to remove.
  • the surface roughness is equal to or higher than the above lower limit value, the second fabric has moderate smoothness and can suppress occurrence of partial unevenness in dust resistance.
  • the surface roughness by the KES method is measured using an automatic texture measuring device (KESFB-4-AUTO-A, manufactured by Kato Tech Co., Ltd.), standard applied pressure: 10 gf, contact: diameter 0 5 mm piano wire, contact length: 5 mm, moving speed: 1 mm/sec, tensile tension: 400 g.
  • KESFB-4-AUTO-A automatic texture measuring device
  • the protective clothing 1 has a first fabric with excellent breathability arranged in the portions A and B covering the wearer's armpits. Moreover, the portion A and the portion B are covered with the first sheet-like material 4a and the second sheet-like material 4b, respectively, and the first sheet-like material 4a and the second sheet-like material 4b Construct a second dough with high water pressure. As a result, the protective clothing 1 is excellent in air permeability, water pressure resistance and dust resistance at the same time.
  • the protective clothing 1 of this embodiment may further include a hood 5.
  • the hood 5 provided by the protective clothing 1 is the part of the protective clothing 1 that covers the wearer's head when the protective clothing 1 is worn.
  • Body portion 2 and hood 5 are preferably integrated.
  • Protective clothing in which the body part and the hood are separate pieces are likely to create a gap between the body part and the hood when the jacket having the body part and the hood are worn.
  • the body and the hood need to be provided with a large number of portions that overlap each other. Such a portion where the body part and the hood overlap tends to deteriorate in breathability and flexibility.
  • the protective clothing 1 in which the body portion 2 and the hood 5 are integrated, there is no gap between the body portion 2 and the hood 5, and there is no overlap between the body portion 2 and the hood 5. not exist. Therefore, the protective clothing 1 can be excellent in both comfort and workability when worn.
  • the hood 5 can be constructed from the second fabric.
  • the protective clothing 1 of this embodiment may include a lower garment 7 in addition to the upper garment 6 including the sleeve portion 21 and the body portion 22 . It is preferable that the upper garment 6 and the lower garment 7 be integrated. Protective clothing in which the upper and lower garments are separate pieces is likely to create a gap between the upper and lower garments when the upper and lower garments are worn. In this case, in order to prevent gaps, when the protective clothing is worn, it is necessary to provide a large amount of overlap between the outer garment and the lower garment. Breathability and flexibility are likely to be reduced in such a portion where the upper garment and the lower garment overlap.
  • the protective clothing 1 in which the upper garment 6 and the lower garment 7 are integrated, there is no gap between the upper garment 6 and the lower garment 7, and the upper garment 6 and the lower garment 7 overlap each other. not exist. Therefore, the protective clothing 1 can be excellent in both comfort and workability when worn.
  • the lower garment 7 can be mainly composed of the second fabric.
  • the protective clothing 1 of this embodiment covers part A or part B made of the first fabric and part A or part B in part of the lower garment 7, as described above in relation to part A and part B.
  • a first sheet 4a or a second sheet 4b may be provided.
  • the portion A or the portion B may be provided around the waist of the lower garment 7 or the like.
  • the protective clothing 1 can maintain high water pressure resistance while improving breathability around the waist.
  • Protective clothing having a body portion and a pair of sleeve portions, having a first sheet-like material and a second sheet-like material, one of the pair of sleeve portions and a part of the body constitute a part A that covers one armpit of the wearer when wearing the protective clothing, and a part of the other sleeve of the pair of sleeves and a portion of the body portion constitutes a portion B that covers the other armpit of the wearer when the protective clothing is worn, and the first sheet-like material is a portion of the protective clothing for the portion A.
  • the second sheet-like material is attached so as to cover the portion A above the portion B in the length direction, and the second sheet-like material is attached so as to cover the portion B above the portion B in the length direction of the protective clothing.
  • the protective clothing includes a first fabric having an air permeability of 30 cm 3 /cm 2 /sec or more and a second fabric having a water pressure resistance of 400 mmH 2 0 or more,
  • the fabric is arranged in the part A and the part B, and has a laminated structure of the first spunbond nonwoven fabric and the first meltblown nonwoven fabric, and the second fabric is the first sheet-like a protective clothing comprising an article and the second sheet-like article, and arranged in a portion other than the portion A and the portion B.
  • the protective clothing has the first fabric with excellent breathability arranged in the portion A and the portion B that cover the wearer's armpits. Further, the portion A and the portion B are covered with a first sheet-like material and a second sheet-like material, respectively. make up the fabric of As a result, the protective clothing is simultaneously excellent in breathability, water pressure resistance and dust resistance.
  • the first sheet-like material and the second sheet-like material cover the entire portions A and B, respectively. Therefore, the protective clothing easily protects the portion A and the portion B, and easily prevents water from entering the protective clothing from the portion A and the portion B.
  • the first sheet-like material covers the entire portion A and is positioned above the portion A in the lengthwise direction of the protective clothing with the first attachment portion attached to the sleeve portion. , at a lateral position or a lower position in the length direction of the protective clothing with respect to the part A, a second part attached to the body part and the sleeve part so as to form a gap for communication between the part A and the outside 2 mounting portions, the protective clothing according to (1) or (2).
  • the first sheet-like material is attached to the sleeve at the upper position of the portion A. Therefore, for example, when water falls from above or obliquely above, the protective clothing easily protects the portion A and easily prevents water from entering the protective clothing from the portion A. Also, the first sheet-like material is attached to the body part so as to form a gap. Therefore, the protective clothing is easy to ensure breathability.
  • the second sheet-like material covers the entire portion B and is positioned above the portion B in the lengthwise direction of the protective clothing with the first attachment portion attached to the sleeve portion. , at a lateral position or a lower position of the protective clothing in the length direction of the protective clothing with respect to the portion B, a second portion attached to the body portion and the sleeve portion so as to form a gap for communication between the portion B and the outside. 2 mounting portions, the protective clothing according to any one of (1) to (3).
  • the second sheet-like material is attached to the sleeve at the upper position of the portion B. Therefore, for example, when water falls from above or diagonally above, the protective clothing easily protects the portion B and easily prevents water from entering the protective clothing from the portion B. Also, the second sheet-like material is attached to the body part so as to form a gap. Therefore, the protective clothing is easy to ensure breathability.
  • the bulk density of the first melt blown nonwoven fabric is 0.05 to 0.18 g/cm 3
  • the thickness of the first melt blown nonwoven fabric is 70 to 200 ⁇ m
  • the first melt blown nonwoven fabric is , a meltblown nonwoven fabric having an electrostatic charge, wherein the first spunbond nonwoven fabric and the first meltblown nonwoven fabric are bonded by an adhesive, and the content of the adhesive is 0.5-5.0g/m 2 ;
  • the protective clothing according to any one of (1) to (4).
  • the protective clothing can easily achieve both excellent breathability and dust resistance.
  • the protective clothing has excellent flexibility, and the first fabric is resistant to delamination.
  • the first fabric is composed only of the first spunbond nonwoven fabric and the first meltblown nonwoven fabric, and the first meltblown nonwoven fabric is the first sheet-like material or the second
  • the protective clothing according to any one of (1) to (5), which is in direct contact with the sheet-like material of
  • the protective clothing has improved comfort and productivity compared to a protective clothing in which three-layer fabrics of spunbond nonwoven fabric, meltblown nonwoven fabric, and spunbond nonwoven fabric are arranged in portions A and B. will be excellent.
  • the first fabric which is composed only of the first spunbond nonwoven and the first meltblown nonwoven, has fewer spunbond nonwovens than the three-layer fabric described above, thus improving breathability and productivity. This is due to the fact that it has excellent properties.
  • the protective clothing of the present invention since the portion A and the portion B are covered with the first sheet-like material and the second sheet-like material, respectively, the first fabric is the first spunbond nonwoven fabric.
  • the durability of the protective clothing of the present invention is comparable to the durability of the protective clothing in which the three-layered fabric is arranged in the portions A and B.
  • the protective clothing can increase the tensile strength and tear strength of the fabric, making it more durable. Also, the protective clothing is more dustproof and flexible.
  • the protective clothing can increase the tensile strength and tear strength of the fabric, making it more durable. Also, the protective clothing is more dustproof and flexible.
  • the second meltblown nonwoven fabric has an average single fiber diameter of 0.1 to 6.0 ⁇ m, and the second spunbond nonwoven fabric has an average single fiber diameter of 6.5 to 11.9 ⁇ m;
  • the protective clothing has better dust resistance and breathability.
  • the second fabric has an intermediate layer and respective outer layers provided on both surfaces of the intermediate layer, each of the outer layers being a second spunbond nonwoven fabric, and the intermediate layer 2 , and has a water pressure resistance of 1000 mmH2O or more.
  • the protective clothing has better dust resistance, breathability, and water pressure resistance.
  • FIG. 4 is a conceptual diagram of an SEM image field of view of a cross-section of fabric. A method for measuring the thickness of each layer constituting the fabric will be described with reference to FIG. The schematic view of the SEM image field of FIG.
  • FIG. 4 shows a cut surface of the fabric composed of a spunbond nonwoven layer 81 and a meltblown nonwoven layer 82 and a background 83 .
  • the length of each parting line that overlaps the spunbond nonwoven layer (an example of the parting line that overlaps the spunbond nonwoven layer is shown at 85 in FIG. 4) was measured.
  • the length of each parting line overlapping the meltblown nonwoven fabric layer was indicated by reference numeral 86 in FIG. 4) was also measured.
  • the length of the parting line was read to the first decimal place when the unit of the length of the parting line was ⁇ m, and was rounded off to the first decimal place.
  • the above measurement is performed on 10 SEM images of different parts of the cross section of the fabric, and the average value of 50 measured values of the length of the parting line overlapping the spunbond nonwoven fabric layer is the spunbond nonwoven fabric. It is the thickness of the layer.
  • the thickness of the melt-blown nonwoven fabric layer was defined as the average value of 50 measurement values of the length of the parting lines overlapping the melt-blown nonwoven fabric layer.
  • a site 87 that looks like a cavity (that is, a site where no fibers are shown) is observed at the boundary between the spunbond nonwoven fabric layer and the meltblown nonwoven fabric layer in the SEM image, and when the site that looks like a cavity and the parting line overlap , assuming that this hollow portion was part of the meltblown nonwoven fabric layer, the length of the parting line overlapping the meltblown nonwoven fabric layer and the length of the parting line overlapping the spunbond nonwoven fabric layer were measured. That is, in one example shown in FIG. 4 , 89 is the length of the split line 84 overlapping the meltblown nonwoven layer, and 88 is the length of the split line overlapping the spunbond nonwoven layer. is the length of line 84; When the fabric further comprises a spunbond nonwoven fabric layer, the thickness of the spunbond nonwoven fabric layer was measured by the same measuring method as that for measuring the thickness of the spunbond nonwoven fabric layer.
  • 15 fibers constituting the spunbond nonwoven fabric layer were randomly selected from the spunbond nonwoven fabric layer shown in the SEM image, and the fiber diameters of these fibers were measured. Then, the average of the obtained 15 measured values was taken as the average fiber diameter of the fibers constituting the spunbond nonwoven fabric layer.
  • 15 fibers constituting the melt-blown nonwoven fabric layer were randomly selected from the melt-blown nonwoven fabric layer shown in the SEM image, and the fiber diameters of these fibers were measured. Then, the average of the obtained 15 measured values was taken as the average fiber diameter of the fibers constituting the melt blown nonwoven fabric layer.
  • the fiber diameter of the fiber was read to the first decimal place when the fiber diameter was expressed in ⁇ m, and was rounded off to the first decimal place.
  • the average fiber diameter of the fibers constituting the spunbond nonwoven fabric layer is the same as the above method for measuring the average fiber diameter of the fibers constituting the spunbond nonwoven fabric layer. It was measured by the same measuring method.
  • Air permeability The air permeability of the fabric was measured based on JIS L 1913-2010 Frazier method, and the amount of air passing through a 15 cm x 15 cm test piece. The obtained average value of three measurements of the amount of passing air was taken as the air permeability.
  • Adhesive content Five test pieces of 100 mm square fabric were prepared, and left to stand for 24 hours in an atmosphere with a temperature of 20 ° C. and a humidity of 65% RH, and then each of the five test pieces The initial mass (g) of was measured. Next, the five test pieces were immersed in 200 ml of solvent (xylene) set at a temperature of 50° C. and packed in a 300 ml container for 6 hours. Then, the five test pieces were again immersed in 200 ml of solvent (xylene) set at a temperature of 50° C. and packed in a 300 ml container for 6 hours. Subsequently, the five test pieces were allowed to stand in an atmosphere at a temperature of 140° C. for 2 hours.
  • solvent xylene
  • Adhesive content (g/m 2 ) (initial mass (g) - mass after removing adhesive (g))/0.01
  • Comfort test method After the monitor wore the protective clothing (M size), the monitor evaluated the temperature, humidity and comfort (humidity) inside the clothing after going up and down the step. The above comfort test was conducted on the same protective clothing by 3 monitors, and the most common test result among the 3 monitors' evaluations was adopted as the final test result. The three monitors who participated in the comfort test were male, weighed 58-64 kg, and were 168-174 cm tall. ⁇ Test method> Each monitor was subjected to a comfort test in the order of S1, S2, S3, S4, and S5 below. S1: Wear only pants (88% polyester, 12% polyurethane) and cotton ankle socks. S2: Attach a temperature and humidity sensor to the right armpit, wear protective clothing, and wear sneakers.
  • Example 1 Two sheets of polypropylene spunbond nonwoven fabric (basis weight: 20 g/m 2 ) and one electrically charged polypropylene meltblown nonwoven fabric (basis weight: 15 g/m 2 , bulk density: 0.14 g/cm 3 , thickness: 109 ⁇ m, fiber diameter 6 ⁇ m).
  • a first fabric was prepared in which a spunbond nonwoven fabric, a meltblown nonwoven fabric, and a spunbond nonwoven fabric were laminated in this order and the respective layers were bonded.
  • the adhesion between the layers of the first fabric was performed by disposing a hot-melt adhesive containing synthetic rubber as a main component between the layers using a spray.
  • the content of hot melt adhesive in each layer of the first fabric was 2.0 g/m 2 per layer.
  • the air permeability of the first fabric was 94 cm 3 /cm 2 /sec, and the water pressure resistance was 202 mmH 2 O.
  • a polypropylene melt-blown nonwoven fabric (11 g/m 2 basis weight, 1 ⁇ m fiber diameter) was directly formed on one side of the polypropylene spunbond nonwoven basis (27 g/m 2 basis weight) to obtain a laminate.
  • a polypropylene spunbond nonwoven fabric (basis weight: 27 g/m 2 ) was directly formed on the polypropylene meltblown nonwoven fabric side of this laminate to obtain a second fabric.
  • the content of hot melt adhesive in each layer of the second fabric was 0 g/m 2 per layer.
  • the air permeability of the second fabric was 8 cm 3 /cm 2 /sec, and the water pressure resistance was 1070 mmH 2 O.
  • Example 1 After that, a plurality of parts corresponding to a plurality of regions constituting the protective clothing were cut out from the obtained first fabric and the obtained second fabric. These multiple parts were then sewn together with a sewing machine to form a coverall type protective clothing with a hood. The obtained protective clothing was used as the protective clothing of Example 1.
  • Figures 1 and 3 show the conceptual diagrams of the resulting protective clothing.
  • the protective clothing 1 has a pair of sleeve portions 21, a body portion 22, a lower garment 7 and a hood 5.
  • the body part 22 is provided with the part A which covers a wearer's right armpit.
  • the dimensions of the portion A are 15 cm long and 15 cm wide.
  • the portion A is covered with a sheet-like material, and the size of the sheet-like material is 20 cm long and 20 cm wide.
  • the portion A is made of the first fabric, and the other portions and the sheet material other than the portion A are made of the second fabric.
  • the body part 22 is provided with the part B which covers a wearer's left armpit.
  • the dimensions of the portion B are 15 cm long and 15 cm wide.
  • the portion B is covered with a sheet-like material, and the size of the sheet-like material is 20 cm long and 20 cm wide.
  • the portion B is made of the first fabric, and the other portions and the sheet material other than the
  • the protective clothing 1 of Example 1 has a sewing part in which the first fabric and the second fabric are sewn in the body part 22, and furthermore, the first attachment part 41 at the upper position of the sheet-like object and the lower part.
  • the second attachment portion 42 is a sewn portion of the second fabric and the second fabric sewn together.
  • Table 1 shows the properties of the first fabric used, the properties of the second fabric used, and the evaluation results.
  • Comparative example 1 A fabric similar to the second fabric of the protective clothing of Example 1 was prepared as the second fabric. After that, a plurality of parts corresponding to a plurality of regions constituting the protective clothing were cut out from the obtained second fabric. These multiple parts were then sewn together with a sewing machine to form a coverall type protective clothing with a hood. The obtained protective clothing was used as the protective clothing of Comparative Example 1.
  • FIG. 5 is a conceptual diagram of the front surface of the protective clothing 9 of Comparative Example 1.
  • FIG. Protective clothing 9 includes a pair of sleeve portions 91 , a body portion 92 , a lower garment 93 and a hood 94 .
  • the sleeve portion 91, the body portion 92, the lower garment 93, and the hood 94 are made of the second fabric. That is, the protective clothing 9 of Comparative Example 1 is composed only of the second fabric.
  • Table 1 shows the type of fabric used for each part and the evaluation results.
  • Example 1 which is a protective clothing comprising a first fabric with an air permeability of 94 cm 3 /cm 2 /sec and a second fabric with a water pressure resistance of 1070 mmH 2 O, and protective clothing consisting only of the second fabric. Comparative Example 1, which is clothing, is summarized.
  • Example 1 when the protective clothing was worn, the temperature inside the clothing was 33°C and the relative humidity was 75% or less. Therefore, this protective garment received an A or B rating in the wearer's comfort test. Therefore, the wearer wearing Example 1 was comfortable. On the other hand, in Comparative Example 1, the temperature inside the protective clothing when worn was 34° C. and the relative humidity was 82%. Therefore, the protective clothing was evaluated as C in the wearer's comfort test, indicating poor comfort.
  • Reference Signs List 1 1a, 1b protective clothing 21 sleeve 22 body 3 fastener 4a first sheet 4b second sheet 41 first mounting portion 42 second mounting portion 5 hood 6 upper garment 7 lower garment 81 spunbond nonwoven fabric Layer 82 Meltblown nonwoven layer 83 Background 84 Parting line 85 Length of parting line overlapping with spunbond nonwoven layer 86 Length of parting line overlapping with meltblown nonwoven layer 87 Appearing cavity 88 Overlapping with spunbond nonwoven layer Length of parting line 89 Length of parting line overlapping meltblown nonwoven fabric layer 9 Protective clothing 91 Pair of sleeves 92 Body part 93 Bottom garment 94 Hood A, B Part covering armpits C Other than part A and part B Part G Gap

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Environmental & Geological Engineering (AREA)
  • Professional, Industrial, Or Sporting Protective Garments (AREA)

Abstract

L'invention concerne un vêtement de protection qui présente une respirabilité, une résistance à la pression d'eau et une résistance à la poussière supérieures. Ce vêtement de protection comporte une section tronc et une paire de sections manches, et comporte un premier article stratiforme et un second article stratiforme. Une portion de l'une des sections manches et une portion de la section tronc constituent une partie A qui recouvre une aisselle, et une portion de l'autre des sections manches et une portion de la section tronc constituent une partie B qui recouvre l'autre aisselle. Le premier article stratiforme recouvre la partie A en une position supérieure dans le sens de la longueur du vêtement de protection, et le second article stratiforme recouvre la partie B en une position supérieure dans le sens de la longueur du vêtement de protection. Un premier tissu dont le taux de ventilation est supérieur ou égal à 30 cm3/cm2/seconde, et un second tissu dont la résistance à la pression d'eau est supérieure ou égale à 400 mmH20 sont compris. Le premier tissu est disposé dans la partie A et la partie B, et présente une structure en couches d'un premier tissu non tissé filé-lié et d'un premier tissu non tissé obtenu par extrusion soufflage. Le second tissu constitue le premier article stratiforme et le second article stratiforme, et est disposé dans une partie autre que la partie A et la partie B.
PCT/JP2022/004479 2021-02-18 2022-02-04 Vêtement de protection WO2022176649A1 (fr)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55106610U (fr) * 1979-01-17 1980-07-25
JP2006152481A (ja) * 2004-11-29 2006-06-15 Toyo Rintofurii Kk 防塵衣
JP2016089278A (ja) * 2014-10-30 2016-05-23 セーレン株式会社 防護服用素材および防護服
JP2019035178A (ja) * 2017-08-22 2019-03-07 山下　三男 換気衣服
WO2020250565A1 (fr) * 2019-06-13 2020-12-17 東レ株式会社 Vêtement de protection

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55106610U (fr) * 1979-01-17 1980-07-25
JP2006152481A (ja) * 2004-11-29 2006-06-15 Toyo Rintofurii Kk 防塵衣
JP2016089278A (ja) * 2014-10-30 2016-05-23 セーレン株式会社 防護服用素材および防護服
JP2019035178A (ja) * 2017-08-22 2019-03-07 山下　三男 換気衣服
WO2020250565A1 (fr) * 2019-06-13 2020-12-17 東レ株式会社 Vêtement de protection

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