US20220167688A1 - Protective clothing - Google Patents

Protective clothing Download PDF

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Publication number
US20220167688A1
US20220167688A1 US17/617,123 US202017617123A US2022167688A1 US 20220167688 A1 US20220167688 A1 US 20220167688A1 US 202017617123 A US202017617123 A US 202017617123A US 2022167688 A1 US2022167688 A1 US 2022167688A1
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United States
Prior art keywords
fabric
protective clothing
woven fabric
wearer
melt
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US17/617,123
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English (en)
Inventor
Hiroki Takeda
Yuichiro Hayashi
Yu SHIBATA
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Toray Industries Inc
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Toray Industries Inc
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Assigned to TORAY INDUSTRIES, INC. reassignment TORAY INDUSTRIES, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HAYASHI, YUICHIRO, TAKEDA, HIROKI, SHIBATA, Yu
Publication of US20220167688A1 publication Critical patent/US20220167688A1/en
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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
    • 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
    • A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
    • A41D13/02—Overalls, e.g. bodysuits or bib overalls
    • 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
    • A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
    • A41D13/08—Arm or hand
    • 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
    • A41D31/14—Air permeable, i.e. capable of being penetrated by gases
    • A41D31/145—Air permeable, i.e. capable of being penetrated by gases using layered materials
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D2500/00—Materials for garments
    • A41D2500/30—Non-woven

Definitions

  • the present invention relates to a protective clothing.
  • Patent Document 1 discloses fabric for protective clothing and a protective clothing made from the above-described fabric.
  • the fabric described in Patent Document 1 has a structure in which a spunbonded non-woven fabric, a charged melt-blown non-woven fabric, and a spunbonded non-woven fabric are laminated in this order.
  • the spunbonded non-woven fabric and the charged melt-blown non-woven fabric are adhered to each other by applying a hot melt adhesive or heat embossing. Accordingly, the above-described fabric for protective clothing has a high bending resistance. Furthermore, in the protective clothing using the above-described fabric, the above-described fabric is arranged on a part covering a wearer's elbow when worn. In addition, at the time of wearing the protective clothing, a movement of the wearer's elbow easily becomes large. From above, the wearer wearing the above-described protective clothing easily feels resistance when moving the elbow and is difficult to move it. As a result, the above-described protective clothing easily reduces workability of the wearer and is inferior in comfortability.
  • the protective clothing of the present invention that solves the above-described problems is a protective clothing comprising a pair of sleeve parts and a body part, wherein one of the pair of sleeve parts comprises a part A covering an elbow joint of a wearer's right arm at the time of wearing the protective clothing, wherein the other one of the pair of sleeve parts comprises a part B covering an elbow joint of the wearer's left arm at the time of wearing the protective clothing, wherein the body part comprises a part C covering the wearer's greater pectoral muscle at the time of wearing the protective clothing, wherein the protective clothing has a first fabric having an air permeability of 30 cm 3 /cm 2 /sec or more and a second fabric having a bending resistance of 80 mm or less, wherein the first fabric is arranged on the part C and has a laminated structure of a first spunbonded non-woven fabric and a first melt-blown non-woven fabric, and wherein the second fabric is arranged on the part A and the
  • FIG. 1 is a conceptual diagram of an SEM image field of view of a cross section of fabric.
  • FIG. 2 is a conceptual diagram of a front surface of the protective clothing in Example 1 which is one embodiment of the present invention.
  • FIG. 3 is a conceptual diagram of a back surface of the protective clothing in Example 1 which is one embodiment of the present invention.
  • FIG. 4 is a conceptual diagram of a front surface of the protective clothing in Example 7 which is another embodiment of the present invention.
  • FIG. 5 is a conceptual diagram of a back surface of the protective clothing in Example 7 which is another embodiment of the present invention.
  • FIG. 6 is a conceptual diagram of a front surface of the protective clothing in Example 8 which is another embodiment of the protective clothing of the present invention.
  • FIG. 7 is a conceptual diagram of a back surface of the protective clothing in Example 8 which is another embodiment of the protective clothing of the present invention.
  • FIG. 8 is a conceptual diagram of a front surface of the protective clothing in Comparative example 3 which is one embodiment of the conventional protective clothing.
  • FIG. 9 is a conceptual diagram of a back surface of the protective clothing in Comparative example 3 which is one embodiment of the conventional protective clothing.
  • FIG. 10 is a conceptual diagram of a front surface of the protective clothing in Comparative example 4 which is another embodiment of the conventional protective clothing.
  • FIG. 11 is a conceptual diagram of a back surface of the protective clothing in Comparative example 4 which is another embodiment of the conventional protective clothing.
  • FIG. 12 is a conceptual diagram of a front surface of the protective clothing in Example 10 which is one embodiment of the present invention.
  • FIG. 13 is a conceptual diagram of a back surface of the protective clothing in Example 10 which is one embodiment of the present invention.
  • FIG. 14 is a conceptual diagram of a front surface of the protective clothing in Example 11 which is one embodiment of the present invention.
  • FIG. 15 is a conceptual diagram of a back surface of the protective clothing in Example 11 which is one embodiment of the present invention.
  • the protective clothing according to one embodiment of the present invention is a protective clothing comprising a pair of sleeve parts and a body part.
  • One of the pair of sleeve parts comprises a part A covering an elbow joint of a wearer's right arm at the time of wearing the protective clothing, and the other one of the pair of sleeve parts comprises a part B covering an elbow joint of the wearer's left arm at the time of wearing the protective clothing.
  • the body part comprises a part C covering the wearer's greater pectoral muscle at the time of wearing the protective clothing.
  • the protective clothing has a first fabric having an air permeability of 30 cm 3 /cm 2 /sec or more and a second fabric having a bending resistance of 80 mm or less.
  • the first fabric is arranged on the part C and has a laminated structure of a first spunbonded non-woven fabric and a first melt-blown non-woven fabric.
  • the second fabric is arranged on the part A and the part B and has a laminated structure of a second spunbonded non-woven fabric and a second melt-blown non-woven fabric.
  • a “body” means a part above a waist of a wearer when a protective clothing is worn by the wearer.
  • a body size of a wearer is not particularly limited.
  • a wearer having the following body sizes is illustrated. That is, the wearer has a height of 171 cm, an upper arm length of 32 cm, a cervical/acromial straight line distance of 15 cm, a fossa jugularis height of 140 cm, a sternum midpoint height of 128 cm, an anterior axilla width of 34 cm, a straight line distance between angulus inferior scapulae of 20 cm, a thigh length of 44 cm, and a tibia superior margin height of 43 cm.
  • the part C provided in the body part of the protective clothing is a part of the protective clothing covering a wearer's greater pectoral muscle when worn.
  • a human body there are many important organs for the human body such as a heart and lungs near the greater pectoral muscle. Accordingly, the wearer easily feels heat more sensitively in the greater pectoral muscle and parts around the greater pectoral muscle compared with parts other than these parts.
  • fabric having a high air permeability which is a first fabric, is used for the part C. This approximates a temperature and a humidity in the vicinity of the wearer's greater pectoral muscle to a temperature and a humidity of an outside air. As a result, the protective clothing of the present embodiment is excellent in comfortability.
  • the part A and the part B of the protective clothing are parts of the protective clothing covering the wearer's elbow joint when worn. Accordingly, the part A and the part B are parts where, when the wearer bends and stretches the elbow, the fabric of the protective clothing bends according to the movement of bending and stretching of the wearer's elbow. Therefore, for the part A and the part B, a second fabric having an excellent flexibility is used. As a result, the protective clothing of the present embodiment improves in workability of the wearer when worn.
  • fabric having a high air permeability is arranged on a part of the protective clothing covering a part where the wearer easily feels heat more sensitively (for example, a greater pectoral muscle and parts around the greater pectoral muscle), and fabric having a high flexibility is arranged on a part of the protective clothing covering a part where the wearer moves frequently (for example, an elbow joint). Therefore, the protective clothing of the present embodiment adopting such a configuration can achieve both comfortability and workability when worn at a high level.
  • the body part of the protective clothing appropriately comprises a part D covering a wearer's subscapular muscle when worn.
  • a first fabric is arranged on the part D.
  • a temperature and a humidity in the vicinity of the wearer's subscapular muscle are easily approximated to a temperature and a humidity of an outside air.
  • the protective clothing of the present embodiment is more excellent in comfortability.
  • a first fabric having a high air permeability is arranged on both the part C and the part D.
  • the protective clothing in such form obtains the following effects.
  • the front body of the protective clothing of the present embodiment receives wind. Due to the wind received by the front body, air outside the garment of the protective clothing can easily enter the garment of the protective clothing from the part C, and then air inside the protective clothing can easily exit from the part D to the outside the garment of the protective clothing. Therefore, the air inside the garment of the protective clothing is easy to be positively replaced with the air outside the garment of the protective clothing, and a temperature and a humidity inside the garment of the protective clothing can be approximated to a temperature and a humidity of the outside air. This allows for the wearer to feel even more comfortable when wearing the protective clothing.
  • the protective clothing of the present embodiment further comprises a hood.
  • the hood provided in the protective clothing is a part of the protective clothing covering a wearer's head at the time of wearing the protective clothing.
  • fabric having a high air permeability which is a first fabric, for at least a part of the hood, the protective clothing can approximate a temperature and a humidity inside the protective clothing to a temperature and a humidity of the outside air. This allows for the wearer to feel more comfortable when wearing the protective clothing.
  • the protective clothing of the present embodiment further comprises a lower garment.
  • the lower garment comprises a part E and a part F.
  • the part E is a part of the protective clothing covering a knee joint of a wearer's right leg when worn.
  • the part F is a part of the protective clothing covering a knee joint of the wearer's left leg when worn.
  • the part E and the part F are parts where the fabric of the protective clothing bends when the wearer bends and stretches the knee. Therefore, by using a flexible fabric, which is a second fabric, for the part E and the part F, the wearer can further improve workability when wearing the protective clothing.
  • a total area of the first fabric is preferably 15% or more, more preferably 20% or more, further preferably 30% or more, based on a total area of the protective clothing.
  • the total area of the first fabric is preferably 70% or less, more preferably 60% or less, further preferably 40% or less, based on the total area of the protective clothing.
  • a total area of the second fabric is preferably 30% or more, more preferably 40% or more, further preferably 60% or more, based on the total area of the protective clothing.
  • the total area of the second fabric is preferably 85% or less, more preferably 80% or less, further preferably 70% or less, based on the total area of the protective clothing.
  • the protective clothing of the present embodiment comprises a hood, and it is more preferable that a body part and a hood are integrated in the protective clothing.
  • a protective clothing in which a body part and a hood are separated, easily forms a gap between the body part and the hood when an upper garment having a body part and a hood are worn.
  • it is necessary to provide a large number of parts overlapping with each other on each of the body part and the hood when wearing the protective clothing. On such parts where the body part and the hood overlap with each other, air permeability and flexibility easily decrease.
  • the protective clothing in which the body part and the hood are integrated, there is no gap between the body part and the hood, and there is no part where the body part and the hood overlap with each other. Therefore, the protective clothing can be excellent in both comfortability and workability at the time of wearing the protective clothing.
  • the protective clothing of the present embodiment further comprises a lower garment and that the upper garment and the lower garment are integrated in the protective clothing.
  • a protective clothing in which the upper garment and the lower garment are separated, easily forms a gap between the upper garment and the lower garment when the upper garment and the lower garment are worn.
  • it is necessary to provide a large number of parts overlapping with each other on each of the upper garment and the lower garment when wearing the protective clothing. On such parts where the upper garment and the lower garment overlap with each other, air permeability and flexibility easily decrease.
  • the protective clothing in which the upper garment and the lower garment are integrated, there is no gap between the upper garment and the lower garment, and there is no part where the upper garment and the lower garment overlap with each other. Therefore, the protective clothing can be excellent in both comfortability and workability at the time of wearing the protective clothing.
  • one of the pair of sleeve parts has a first sewn part in which the first fabric and the second fabric are sewn
  • the other one of the pair of sleeve parts has a second sewn part in which the first fabric and the second fabric are sewn.
  • the first sewn part is formed between an elbow joint of a wearer's right arm and a base part of the wearer's right arm at the time of wearing the protective clothing
  • the second sewn part is formed between an elbow joint of the wearer's left arm and a base part of the wearer's left arm at the time of wearing the protective clothing.
  • the first sewn part and the second sewn part are formed between the elbow joint and the base part of the arm, respectively, so that the first fabric is arranged on the wearer's armpit part.
  • air permeability easily improves in areas where sweat easily occur, such as armpit parts and a periphery part of armpits.
  • the protective clothing is more excellent in comfortability at the time of wearing the protective clothing.
  • the body part has a part G covering a wearer's waist at the time of wearing the protective clothing and a third sewn part in which the first fabric and the second fabric are sewn.
  • the second fabric is arranged on the part G, the part G having a gather part tightening the wearer's waist, and that the third sewn part is provided on the wearer's head side rather than the gather part.
  • the gather part tightens the wearer's waist, thereby restricting a movement of air inside the garments above and below the gather part in the protective clothing.
  • a hot air generated in the lower body part is unlikely to flow into the upper body part.
  • the third sewn part is provided on the wearer's head side rather than the gather part. That is, with the third sewn part being as a boundary, a second fabric is provided on the leg side part rather than the third sewn part, and a first fabric having a good air permeability is provided on the head side part rather than the third sewn part.
  • a volume in the garment between the protective clothing and the wearer's body increases and decreases as the wearer moves.
  • air inside the garment is easily discharged to the outside the garment from the part C consisting of the first fabric on the head side rather than the third sewn part with the gather part being as a starting point, and air outside the garment is easily taken in from the part C. Therefore, in the protective clothing, the air inside and outside the protective clothing are easily replaced. This allows for the wearer to feel even more comfortable.
  • the first fabric of the protective clothing of the present embodiment may have an air permeability of 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 /sec or less, more preferably 130 cm 3 /cm 2 /sec or less, further preferably 110 cm 3 /cm 2 /sec or less.
  • the first fabric has a laminated structure of a first spunbonded non-woven fabric and a first melt-blown non-woven fabric.
  • a bulk density of the first melt-blown non-woven fabric is preferably 0.05 g/cm 3 or more, more preferably 0.08 g/cm 3 or more, further preferably 0.10 g/cm 3 or more.
  • the bulk density of the first melt-blown non-woven fabric is preferably 0.18 g/cm 3 or less, more preferably 0.16 g/cm 3 or less, further preferably 0.15 g/cm 3 or less.
  • a thickness of the first melt-blown non-woven fabric is preferably 200 ⁇ m or less, more preferably 160 ⁇ m or less, further preferably 140 ⁇ m or less.
  • the thickness of the first melt-blown non-woven fabric is preferably 70 ⁇ m or more, more preferably 80 ⁇ m or more, further preferably 90 ⁇ m or more.
  • An average fiber diameter of fibers constituting the first melt-blown non-woven fabric is preferably 3 ⁇ m or more, more preferably 4 ⁇ m or more, further preferably 6 ⁇ m or more. Moreover, the average fiber diameter of the fibers constituting the first melt-blown non-woven fabric is preferably 15 ⁇ m or less, more preferably 10 ⁇ m or less, further preferably 8 ⁇ m or less.
  • the first melt-blown non-woven fabric is more excellent in strength.
  • the first melt-blown non-woven fabric has a large opening size.
  • the protective clothing further improves in air permeability in a part where the first fabric is used.
  • the opening size of the first melt-blown non-woven fabric becomes small. As a result, the protective clothing is more excellent in dust resistance in a part where the first fabric is used.
  • the materials of the fibers constituting the first melt-blown non-woven fabric are not particularly limited.
  • the materials of the fibers are polyolefin such as polyethylene and polypropylene, polyester such as polyethylene terephthalate and polylactic acid, polycarbonate, polystyrene, polyphenylene sulfide, fluorine-based resins, and a mixture thereof, etc.
  • the materials of the fibers preferably include a polyolefin-based resin as a main component from the viewpoint that productivity of the fabric and the texture become excellent.
  • the polyolefin-based resin is preferably polypropylene from the viewpoint that dust resistance is easily improved by electret processing.
  • the fact that the first melt-blown non-woven fabric comprises a polyolefin-based resin as a main component implies that the first melt-blown non-woven fabric comprises 80% by mass or more of a polyolefin-based resin based on the total amount of the first melt-blown non-woven fabric.
  • the first melt-blown non-woven fabric preferably comprises 90% by mass or more of a polyolefin-based resin based on the total amount of the first melt-blown non-woven fabric, and more preferably consists only of a polyolefin-based resin.
  • the melt-blown non-woven fabric may contain an additive such as hindered amine as long as effects of the present embodiment are not impaired.
  • the first melt-blown non-woven fabric can be obtained by a melt-blown method.
  • the melt-blown method is generally a method in which a thermoplastic polymer extruded from a spinneret is finely made into fibers by a hot air injection, and utilizing self-welding characteristics of the fibers, a web is formed.
  • Spinning conditions in the melt-blown method include a polymer discharge rate, a nozzle temperature, an air pressure, and the like. By optimizing these spinning conditions, a non-woven fabric having a desired fiber diameter can be obtained. Specifically, when producing fibers used for the first melt-blown non-woven fabric, the fibers are easily made finer by reducing an amount of resin discharged, increasing a discharge speed, and increasing a degree of fiber stretching.
  • the first melt-blown non-woven fabric is preferably a charged melt-blown non-woven fabric.
  • the first melt-blown non-woven fabric is a charged melt-blown non-woven fabric, it becomes possible to achieve both a high air permeability and a high dust resistance of the first fabric.
  • the first melt-blown non-woven fabric is a charged melt-blown non-woven fabric and an average fiber diameter of the fibers constituting the first melt-blown non-woven fabric is preferably 3 ⁇ m or more and 15 ⁇ m or less.
  • the first fabric comprising such a first melt-blown non-woven fabric is extremely excellent in dust resistance and also extremely excellent in air permeability.
  • Materials of fibers constituting the first spunbonded non-woven fabric are not particularly limited.
  • the materials of the fibers are polyolefin such as polyethylene and polypropylene, polyester such as polyethylene terephthalate and polylactic acid, polycarbonate, polystyrene, polyphenylene sulfide, fluorine-based resins, and a mixture thereof, etc.
  • the materials of the fibers preferably include a polyolefin from the viewpoint that productivity of the fabric and the texture become excellent.
  • An average fiber diameter of the fibers constituting the first spunbonded non-woven fabric is preferably 18 ⁇ m or more, more preferably 19 ⁇ m or more, further preferably 20 ⁇ m or more. Moreover, the average fiber diameter of the fibers is preferably 30 ⁇ m or less, more preferably 28 ⁇ m or less, further preferably 26 ⁇ m or less.
  • the protective clothing further improves in air permeability in a part where the first fabric is used.
  • the average fiber diameter is not more than the above-described upper limit value, the opening size of the first spunbonded non-woven fabric becomes small. Therefore, the protective clothing further improves in dust resistance.
  • the first spunbonded non-woven fabric may be provided with functions as long as the effects of the present embodiment are not impaired.
  • the first spunbonded non-woven fabric may be provided with functions such as, for example, water repellency, oil repellency, antistatic, flame retardant, antibacterial, and antifungal.
  • a method of laminating the first spunbonded non-woven fabric and the first melt-blown non-woven fabric is not particularly limited.
  • the first fabric preferably comprises a charged first melt-blown non-woven fabric.
  • a charged first melt-blown non-woven fabric it is necessary to separately and independently produce a charged first melt-blown non-woven fabric and a first spunbonded non-woven fabric.
  • the charged first melt-blown non-woven fabric and the first spunbonded non-woven fabric produced separately and independently need to be attached together using an adhesive (a first adhesive) or by embossing.
  • a first fabric comprising a charged first melt-blown non-woven fabric, wherein, when the charged first melt-blown non-woven fabric and a first spunbonded non-woven fabric are attached together by an adhesive (a first adhesive), a content of the adhesive contained between layers of the charged first melt-blown non-woven fabric and the first spunbonded non-woven fabric is preferably 0.5 g/m 2 or more, more preferably 1.0 g/m 2 or more. Moreover, the content of the adhesive 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 greater than the above-described lower limit value
  • an adhesive force between the layers of the first spunbonded non-woven fabric and the first melt-blown non-woven fabric is more excellent.
  • the protective clothing is less likely to be peeled off between the layers when a wearer wears the protective clothing and performs work.
  • the content of the adhesive is not more than the above-described upper limit value
  • air permeability of the first fabric becomes high. As a result, the first fabric has a low bending resistance and an excellent flexibility.
  • the first fabric may further comprise a third spunbonded non-woven fabric.
  • the first spunbonded non-woven fabric, the first melt-blown non-woven fabric, and the third spunbonded non-woven fabric are laminated in this order in the first fabric.
  • the protective clothing is prepared such that the third spunbonded non-woven fabric is arranged on a wearer side using such a first fabric, in the protective clothing, the first spunbonded non-woven fabric is arranged further outside the first melt-blown non-woven fabric.
  • the protective clothing easily protects the first melt-blown non-woven fabric from an external stress by the first spunbonded non-woven fabric.
  • the protective clothing is less likely to deteriorate in performance such as dust resistance of the protective clothing due to scratches on the first melt-blown non-woven fabric. Furthermore, such protective clothing has an excellent abrasion resistance.
  • the similar third spunbonded non-woven fabric as that described above as the first spunbonded non-woven fabric can be used.
  • a QF value of the first fabric is preferably 0.30 or more, more preferably 0.90 or more, further preferably 1.20 or more.
  • the QF value is calculated from a filtration efficiency and a pressure loss.
  • the QF value can be calculated by an equation of ⁇ Ln (T)/ ⁇ P.
  • T is a filtration efficiency
  • ⁇ P is a difference in static pressure between upstream and downstream of a sample when the filtration efficiency T is measured.
  • the QF value of the first fabric is preferably higher than a QF value of the second fabric.
  • fabrics with different QF values are combined, in the protective clothing, under the work environment, dust in the air, etc. can selectively enter the clothing through a part using a first fabric with a high air permeability and a low pressure loss. Therefore, by increasing a QF value of the first fabric more than that of the second fabric, the protective clothing as a whole can be further enhanced in dust resistance beyond an expected dust resistance based on a simple fabric ratio.
  • the filtration efficiency of the first fabric is preferably 50% or more, more preferably 80% or more, further preferably 90% or more. Because the first fabric is arranged near a wearer's important organ (a part C covering a greater pectoral muscle), it becomes possible to further enhance the wearer's safety by making the fabric have a high filtration efficiency.
  • a second fabric of the protective clothing of the present embodiment may have a bending resistance of 80 mm or less, preferably 75 mm or less, more preferably 70 mm or less.
  • the bending resistance of the second fabric is preferably 30 mm or more, more preferably 40 mm or more, further preferably 50 mm or more.
  • the second fabric has a laminated structure of a second spunbonded non-woven fabric and a second melt-blown non-woven fabric.
  • a bulk density of the second melt-blown non-woven fabric is preferably 0.20 g/cm 3 or more, more preferably 0.23 g/cm 3 or more, further preferably 0.26 g/cm 3 or more, in order for the protective clothing to exhibit a more excellent dust resistance.
  • the bulk density of the second melt-blown non-woven fabric is preferably 0.53 g/cm 3 or less, more preferably 0.40 g/cm 3 or less, further preferably 0.30 g/cm 3 or less, in order to reduce a value of bending resistance of the second fabric.
  • a thickness of the second melt-blown non-woven fabric is preferably 120 ⁇ m or less, more preferably 100 ⁇ m or less, further preferably 90 ⁇ m or less, in order to reduce a value of bending resistance of the second fabric.
  • the thickness of the second melt-blown non-woven fabric is preferably 30 ⁇ m or more, more preferably 40 ⁇ m or more, further preferably 50 ⁇ m or more, in order to make dust resistance of the protective clothing excellent.
  • An average fiber diameter of fibers constituting the second melt-blown non-woven fabric is preferably 0.5 ⁇ m or more, more preferably 1 ⁇ m or more, further preferably 2 ⁇ m or more. Moreover, the average fiber diameter of the fibers constituting the second melt-blown non-woven fabric is preferably 8 ⁇ m or less, more preferably 4 ⁇ m or less, further preferably 3 ⁇ m or less.
  • the average fiber diameter is equal to or greater than the above-described lower limit value, the second fabric is enhanced in strength against tension and tearing. As a result, a durable protective clothing can be obtained.
  • an average fiber diameter is not more than the above-described upper limit value, the opening size of the second melt-blown non-woven fabric becomes small. Therefore, the protective clothing can be made excellent in dust resistance in a part using the second fabric and can be made more excellent in flexibility in a part using the second fabric.
  • the materials of the fibers constituting the second melt-blown non-woven fabric are not particularly limited.
  • the materials of the fibers are polyolefin such as polyethylene and polypropylene, polyester such as polyethylene terephthalate and polylactic acid, polycarbonate, polystyrene, polyphenylene sulfide, fluorine-based resins, and a mixture thereof, etc.
  • the materials of the fibers preferably include a polyolefin-based resin as a main component from the viewpoint that productivity of the fabric and the texture become excellent.
  • the polyolefin-based resin is preferably polypropylene from the viewpoint that bending resistance is easily improved.
  • the fact that the second melt-blown non-woven fabric comprises a polyolefin-based resin as a main component implies that the second melt-blown non-woven fabric comprises 80% by mass or more of a polyolefin-based resin based on the total amount of the second melt-blown non-woven fabric.
  • the second melt-blown non-woven fabric preferably comprises 90% by mass or more of a polyolefin-based resin based on the total amount of the second melt-blown non-woven fabric, and more preferably consists only of a polyolefin-based resin.
  • the second melt-blown non-woven fabric can be obtained by the similar method as in the case of the first melt-blown non-woven fabric.
  • a bulk density of the second spunbonded non-woven fabric is preferably 0.10 g/cm 3 or more, more preferably 0.11 g/cm 3 or more, further preferably 0.12 g/cm 3 or more, in order for the protective clothing to exhibit a more excellent dust resistance.
  • the bulk density of the second spunbonded non-woven fabric is preferably 0.15 g/cm 3 or less, preferably 0.14 g/cm 3 or less, further preferably 0.13 g/cm 3 or less, in order to reduce a value of bending resistance of the second fabric.
  • a thickness of the second spunbonded non-woven fabric is preferably 200 ⁇ m or less, more preferably 190 ⁇ m or less, further preferably 180 ⁇ m or less, in order to reduce a value of bending resistance of the second fabric.
  • the thickness of the second melt-blown non-woven fabric is preferably 120 ⁇ m or more, more preferably 140 ⁇ m or more, further preferably 150 ⁇ m or more, in order to make dust resistance of the protective clothing more excellent.
  • Materials of fibers constituting the second spunbonded non-woven fabric are not particularly limited.
  • the materials of the fibers are polyolefin such as polyethylene and polypropylene, polyester such as polyethylene terephthalate and polylactic acid, polycarbonate, polystyrene, polyphenylene sulfide, fluorine-based resins, and a mixture thereof, etc.
  • the materials of the fibers preferably include a polyolefin from the viewpoint that productivity of the fabric and the texture become excellent.
  • An average fiber diameter of the fibers constituting the second spunbonded non-woven fabric is preferably 14 ⁇ m or more, more preferably 16 ⁇ m or more, further preferably 18 ⁇ m or more. Moreover, the average fiber diameter of the fibers is preferably 24 ⁇ m or less, more preferably 22 ⁇ m or less, further preferably 20 ⁇ m or less.
  • the second spunbonded non-woven fabric can be enhanced in strength against tension and tearing of the fabric. Therefore, a more durable protective clothing can be obtained.
  • the opening size of the second spunbonded non-woven fabric becomes small. Therefore, the protective clothing has a more excellent dust resistance of the second fabric and further improves in flexibility in a part where the second fabric is used.
  • the second spunbonded non-woven fabric may be provided with functions as long as the effects of the present embodiment are not impaired.
  • the second spunbonded non-woven fabric may be provided with functions such as, for example, water repellency, oil repellency, antistatic, flame retardant, antibacterial and antifungal.
  • the second spunbonded non-woven fabric and the second melt-blown non-woven fabric may be directly laminated or may be adhered by an adhesive (a second adhesive).
  • a content of the adhesive contained between the layers of the second spunbonded non-woven fabric and the second melt-blown non-woven fabric is more than 0 g/m 2 , preferably 0.4 g/m 2 or less.
  • the content of the adhesive is not more than the above-described upper limit value, the second fabric has an extremely low bending resistance and an extremely excellent flexibility.
  • the content of the adhesive is more preferably 0.2 g/m 2 or less, and particularly preferably no adhesive is used.
  • the second fabric is arranged on the part A and the part B of the protective clothing and is required to have a high flexibility.
  • the second fabric is not required to have a high air permeability as compared with the first fabric.
  • the first fabric it is preferable to use a charged melt-blown non-woven fabric as a first melt-blown non-woven fabric in order to make air permeability of the fabric excellent. Therefore, the charged melt-blown non-woven fabric and the spunbonded non-woven fabric need to be produced separately and independently and to be attached together by an adhesive.
  • the second fabric is not required to have a high air permeability as long as it has a high flexibility and a high dust resistance. Accordingly, the second fabric is not required to use a charged melt-blown non-woven fabric.
  • a second melt-blown non-woven fabric may be directly formed on one surface of the second spunbonded non-woven fabric. That is, in the step of producing a second fabric, an adhesive (a second adhesive) is optional when a laminated body of the second spunbonded non-woven fabric and the second melt-blown non-woven fabric is obtained. As a result, in the second fabric, a content of the adhesive contained between the layers of the second spunbonded non-woven fabric and the second melt-blown non-woven fabric can be set to 0 g/m 2 , and flexibility can be further enhanced.
  • the method of producing a second fabric it is preferable not to use an adhesive (a second adhesive) in order to obtain a laminated body of the second spunbonded non-woven fabric and the second melt-blown non-woven fabric.
  • an adhesive a second adhesive
  • the method of laminating the second spunbonded non-woven fabric and the second melt-blown non-woven fabric is not particularly limited as long as the effects of the present embodiment are not impaired.
  • the second fabric may further comprise a fourth spunbonded non-woven fabric.
  • the second fabric it is preferable that the second spunbonded non-woven fabric, the second melt-blown non-woven fabric, and the fourth spunbonded non-woven fabric are laminated in this order. In this way, in the protective clothing in which the fourth spunbonded non-woven fabric is arranged on a wearer side, the second spunbonded non-woven fabric is arranged further outside the second melt-blown non-woven fabric. Therefore, the fourth spunbonded non-woven fabric allows for protection of the second melt-blown non-woven fabric from an external stress.
  • the protective clothing As a result, in the protective clothing, deterioration in performance such as dust resistance of the protective clothing due to scratches on the second melt-blown non-woven fabric is easily suppressed, and the protective clothing has an excellent abrasion resistance.
  • the similar fourth spunbonded non-woven fabric as that described above as the second spunbonded non-woven fabric can be used.
  • Examples of the laminated structure of the second fabric include (A) a laminated structure configured so that a second spunbonded non-woven fabric, a second melt-blown non-woven fabric, and a fourth spunbonded non-woven fabric are laminated in this order, (B) a laminated structure configured so that a second spunbonded non-woven fabric, a second melt-blown non-woven fabric, a second melt-blown non-woven fabric, and a fourth spunbonded non-woven fabric are laminated in this order, (C) a laminated structure configured so that a second spunbonded non-woven fabric, a second melt-blown non-woven fabric, a second melt-blown non-woven fabric, a second melt-blown non-woven fabric, and a fourth spunbonded non-woven fabric are laminated in this order, and (D) a laminated structure configured so that a second spunbonded non-woven fabric, a second spunbonded non-woven fabric, a second melt-blown non-woven fabric, a second melt-blown non-woven fabric, a second melt-blown non-woven
  • the second fabric preferably has (D) a laminated structure configured so that a second spunbonded non-woven fabric, a second spunbonded non-woven fabric, a second melt-blown non-woven fabric, a second melt-blown non-woven fabric, a second melt-blown non-woven fabric, and a fourth spunbonded non-woven fabric are laminated in this order, from the viewpoint of achieving both an excellent dust resistance and an excellent bending resistance.
  • a QF value of the second fabric is preferably 0.20 or less, more preferably 0.10 or less, further preferably 0.05 or less.
  • the QF value of the second fabric is preferably 0.01 or more, more preferably 0.02 or more, further preferably 0.03 or more.
  • the QF value is calculated from a filtration efficiency and a pressure loss.
  • the QF value can be calculated by an equation of ⁇ Ln (T)/AP.
  • T is a filtration efficiency
  • ⁇ P is a difference in static pressure between upstream and downstream of a sample when the filtration efficiency T is measured.
  • the protective clothing is flexible when worn, is easy for a wearer to work on, and has an excellent dust resistance against dust and chemical substances.
  • the present invention is not particularly limited to the above-described embodiment. Besides, the above-described embodiment mainly describes an invention having the following configurations.
  • a protective clothing comprising a pair of sleeve parts and a body part, wherein one of the pair of sleeve parts comprises a part A covering an elbow joint of a wearer's right arm at the time of wearing the protective clothing, wherein the other one of the pair of sleeve parts comprises a part B covering an elbow joint of the wearer's left arm at the time of wearing the protective clothing, wherein the body part comprises a part C covering the wearer's greater pectoral muscle at the time of wearing the protective clothing, wherein the protective clothing has a first fabric having an air permeability of 30 cm 3 /cm 2 /sec or more and a second fabric having a bending resistance of 80 mm or less, wherein the first fabric is arranged on the part C and has a laminated structure of a first spunbonded non-woven fabric and a first melt-blown non-woven fabric, and wherein the second fabric is arranged on the part A and the part B and has a laminated structure of a second spunbonded non-woven
  • a bulk density of the first melt-blown non-woven fabric is 0.05 g/cm 3 or more and 0.18 g/cm 3 or less, wherein a thickness of the first melt-blown non-woven fabric is 70 ⁇ m or more and 200 ⁇ m or less, wherein the first melt-blown non-woven fabric is a charged melt-blown non-woven fabric, wherein the first spunbonded non-woven fabric and the first melt-blown non-woven fabric are adhered by a first adhesive, and a content of the first adhesive is 0.5 g/m 2 or more and 5.0 g/m 2 or less, wherein a bulk density of the second melt-blown non-woven fabric is 0.20 g/cm 3 or more and 0.53 g/cm 3 or less, wherein a thickness of the second melt-blown non-woven fabric is 30 ⁇ m or more and 120 ⁇ m or less, wherein a bulk density of the second spunbonded non-woven fabric is 0.10 g/cm 3 or more and 0.15
  • the body part further comprises a part D covering a wearer's subscapular muscle at the time of wearing the protective clothing, and wherein the first fabric is arranged on the part D.
  • FIG. 1 is a conceptual diagram of an SEM image field of view of a cross section of fabric. With reference to FIG. 1 , a method of measuring a thickness of each layer constituting the fabric will be described. The conceptual diagram of the SEM image field of view in FIG.
  • a length of each dividing line that overlaps with a melt-blown non-woven fabric layer (one example of the dividing line that overlaps with the melt-blown non-woven fabric layer is indicated by reference numeral 6 in FIG. 1 ) was also measured.
  • the lengths of the dividing lines were defined as values obtained by reading them up to the first decimal place when units of the lengths of the dividing lines were defined as ⁇ m and rounding off the first decimal place.
  • the above-described measurement was performed for 10 SEM images obtained by photographing different parts of the cross section of the fabric, and an average value of 50 measured values of the lengths of the dividing lines that overlap with the obtained spunbonded non-woven fabric layer was defined as a thickness of the spunbonded non-woven fabric.
  • an average value of 50 measured values of the lengths of the dividing lines that overlap with the obtained melt-blown non-woven fabric layer was defined as a thickness of the melt-blown non-woven fabric layer.
  • a cavity-like part 7 (that is, a part where fibers are not reflected) was observed at a boundary between the spunbonded non-woven fabric layer and the melt-blown non-woven fabric layer in the SEM image, and when this cavity-like part and the dividing lines overlap with each other, with this cavity-like part being as a part of the melt-blown non-woven fabric layer, a length of the dividing line that overlaps the melt-blown non-woven fabric layer and a length of the dividing line that overlaps the spunbonded non-woven fabric layer were measured.
  • what is indicated by reference numeral 9 is a length of a dividing line 4 that overlaps with the melt-blown non-woven fabric layer
  • what is indicated by reference numeral 8 is a length of a dividing line 4 that overlaps with the spunbonded non-woven fabric layer.
  • a thickness of the spunbonded non-woven fabric layer was measured by the similar measuring method as the above-described measuring method of the thickness of the spunbonded non-woven fabric layer.
  • a cut surface of fabric obtained in the similar manner as the above-described method for (1) Thickness was photographed at a magnification of 300 ⁇ and 2000 ⁇ using a field emission scanning electron microscope (FE-SEM) S-800 manufactured by Hitachi, Ltd. These images were imported into an image analysis software attached to this device. At that time, the fiber diameter was measured using the SEM image measured at a magnification of 300 ⁇ for fiber having a fiber diameter of 10 ⁇ m or more, and the fiber diameter was measured using the SEM image measured at a magnification of 2000 ⁇ for fiber having a fiber diameter of less than 10 ⁇ m.
  • FE-SEM field emission scanning electron microscope
  • the fiber diameters of the fibers were defined as values obtained by reading them up to the first decimal place when units of the fiber diameters were defined as ⁇ m and rounding off the first decimal place.
  • an average fiber diameter of the fibers constituting the spunbonded non-woven fabric layer was measured by the similar measuring method as the above-described measuring method of the fibers constituting the spunbonded non-woven fabric layer.
  • a bulk density was measured with “GeoPyc1360” manufactured by Micromeritics Instrument Corporation. Layers other than the specific layer (i.e., the spunbonded non-woven fabric layer or the melt-blown non-woven fabric layer) which is subjected to measurement for bulk density were removed from the fabric for protective clothing using a sandpaper No. 1000. Next, the specific layer which is subjected to measurement was cut out into a size of 2 mm ⁇ 2 mm and used as a measurement sample. 10 measurement samples were prepared, which were alternately laminated with measurement beads in a sample chamber having an inner diameter of 12.7 mm, and the beads were filled to a position at 2 cm from the bottom surface of the sample chamber for measurement.
  • the third decimal place of the bulk density result obtained from the measurement was rounded off to be defined as a bulk density of the measurement sample. Then, the above-described bulk density of the measurement sample was measured three times, and an average value of the obtained three values was defined as a bulk density of the specific layer. Besides, the bulk density was measured for each of the spunbonded non-woven fabric layer and the melt-blown non-woven fabric layer.
  • An air permeability of fabric was measured based on a Frazir type method according to JIS L1913-2010 and defined as an amount of air passing through a test piece having a size of 15 cm ⁇ 15 cm. An average value of the obtained three measurements of the amount of passing air was defined as an air permeability.
  • a filtration efficiency was measured for fabric with a collection performance measuring device.
  • a dust storage box is coupled to an upstream side of a sample holder for setting a measurement sample, and a flow meter, a flow rate adjusting valve, and a blower are coupled to a downstream side.
  • the number of dusts on the upstream side and the number of dusts on the downstream side of the measurement sample can be measured, respectively, via a switching cock using a particle counter for the sample holder.
  • the sample holder is equipped with a pressure gauge and can read a difference in static pressure ⁇ P upstream and downstream of the sample.
  • a polystyrene standard latex powder with a diameter of 0.3 ⁇ m in which a 10% by mass of 0.309 U polystyrene solution manufactured by Nacalai Tesque Inc.
  • a QF value was calculated from the difference ⁇ P in static pressure upstream and downstream of the sample when the filtration efficiency T was measured in (5) by the following equation.
  • a bending resistance was measured based on A method (a 45° cantilever method) defined by JIS L1096 (1999), and an average value in a vertical direction and a horizontal direction was used as a value to express the unit in mm.
  • test pieces of fabric with 100 mm square were prepared and allowed to stand for 24 hours in an atmosphere of a temperature at 20° C. and a humidity of 65% RH, and then an initial mass (g) of each of 5 test pieces was measured.
  • 5 test pieces were impregnated for 6 hours in 200 ml of a solvent (xylene) set at a temperature of 50° C. which was filled in a container having a capacity of 300 ml.
  • 5 test pieces were immersed for 6 hours in 200 ml of the solvent (xylene) set at the temperature of 50° C. which was filled in the container having a capacity of 300 ml.
  • 5 test pieces were allowed to stand for 2 hours in an atmosphere at a temperature of 140° C.
  • test pieces were allowed to stand for 24 hours in an atmosphere at a temperature of 20° C. and a humidity of 65% RH, and then a mass (g) of each of 5 five test pieces was measured to calculate an adhesive content (g/m 2 ) of each test piece by the following equation, and an average value of 5 test pieces was defined as an adhesive content.
  • Adhesive content (g/m 2 ) (initial mass (g) ⁇ mass with adhesive removed (g))/0.01
  • a monitor wore a protective clothing (medium size), and then the monitor evaluated temperature and humidity, and comfortability (for sultriness) in the clothing after step aerobics.
  • the above-described comfortability test was performed by three monitors for the same protective clothing, and the most common test result among the evaluations by the three monitors was adopted as a final test result.
  • Three monitors who participated in the comfortability test were male with 58-64 kg weight and 168-174 cm tall.
  • Each monitor was subjected to a comfortability test in the following order of S 1 , S 2 , S 3 , S 4 , and S 5 .
  • a monitor evaluated workability (easiness of walking) when performing step aerobics and workability (easiness of evaluation) when evaluating bending resistance after wearing a protective clothing (medium size).
  • the above-described workability tests were performed by three monitors for the same protective clothing, and the most common test result among the evaluations by the three monitors was adopted as a final test result.
  • Three monitors who participated in the comfortability test were male with 58-64 kg weight and 168-174 cm tall.
  • M 1 Evaluate workability (easiness of walking) when performing step aerobics in (9) Comfortability test method.
  • M 2 Evaluate a sample cut in (7) Bending resistance, and workability (easiness of evaluation) at the time of evaluation.
  • Height Vertical distance from a floor surface to a head top point
  • Upper arm length Straight line distance from an acromial point to a radial point
  • Cervical/acromial straight line distance Straight line distance from a cervical point to an acromial point
  • Fossa jugularis height Vertical distance from the floor surface to a fossa jugularis point
  • Sternum midpoint height Vertical distance from the floor surface to a sternum midpoint
  • Anterior axilla width Straight line distance between left and right anterior axilla points
  • Thigh length Vertical distance from a trochanteric point to a tibial point
  • Tibia superior margin height Vertical distance from the floor surface to a tibial point
  • Two spunbonded non-woven fabrics made from polypropylene (20 g/m 2 of basis weight) and one charged melt-blown non-woven fabric made from polypropylene (15 g/m 2 of basis weight, 0.14 g/cm 3 of bulk density, 109 ⁇ m of thickness, 6 ⁇ m of fiber diameter) were prepared.
  • a first fabric was prepared in which a spunbonded non-woven fabric, a melt-blown non-woven fabric, and a spunbonded non-woven fabric were laminated in this order and the respective layers were bonded to each other.
  • the bonding between the respective layers of the first fabric was performed by arranging a hot melt adhesive comprising polyethylene as a main component between the respective layers using a spray.
  • a content of the hot melt adhesive between the respective layers of the first fabric was 2.0 g/m 2 per between the respective layers.
  • Characteristics of the first fabric are as shown in Table 1.
  • structures of the melt-blown non-woven fabric provided in the first fabric are as shown in Table 2.
  • Structures of two spunbonded non-woven fabrics provided in the first fabric are as shown in Table 3.
  • melt-blown non-woven fabric made from polypropylene (10 g/m 2 of basis weight) was directly formed on one surface of a spunbonded non-woven fabric made from polypropylene (20 g/m 2 of basis weight) to obtain a laminated body.
  • a spunbonded non-woven fabric made from polypropylene (20 g/m 2 of basis weight) was directly formed on a surface of a melt-blown non-woven fabric made from polypropylene of this laminated body to obtain a second fabric.
  • a content of the hot melt adhesive between the respective layers of the second fabric was 0 g/m 2 per between the respective layers.
  • Characteristics of the second fabric are as shown in Table 4.
  • structures of the melt-blown non-woven fabric provided in the second fabric are as shown in Table 5.
  • Structures of two spunbonded non-woven fabrics provided in the second fabric are as shown in Table 6.
  • Example 1 From the obtained first fabric and the obtained second fabric, a plurality of parts corresponding to a plurality of areas constituting the protective clothing were cut out. Next, these parts were sewn together with a sewing machine in order to form an overall type protective clothing with a hood.
  • the obtained protective clothing was used as a protective clothing in Example 1.
  • FIGS. 2 and 3 A conceptual diagram of the obtained protective clothing is shown in FIGS. 2 and 3 . That is, FIG. 2 is a conceptual diagram of a front surface of the protective clothing 17 in Example 1 which is one embodiment of the protective clothing of the present invention, and FIG. 3 is a conceptual diagram of a back surface of the protective clothing 17 in Example 1 which is one embodiment of the present invention.
  • the protective clothing 17 comprises a pair of sleeve parts, a body part, a lower garment, and a hood 15 .
  • the body part (a front body part) comprises a part C covering a wearer's greater pectoral muscle and a part D covering the wearer's subscapular muscle.
  • one of the pair of sleeve parts comprises a part A covering an elbow joint of the wearer's right arm. Furthermore, the other one of the pair of sleeve parts comprises a part B covering an elbow joint of the wearer's left arm. Besides, the above-described part A is indicated by reference numeral 10 , and the above-described part B is indicated by reference numeral 11 . Moreover, the lower garment comprises a part E covering a knee joint of the wearer's right leg and a part F covering a knee joint of the wearer's left leg.
  • the above-described part E is indicated by reference numeral 13
  • the above-described part F is indicated by reference numeral 14
  • the hood, the part C, and the part D are composed of a first fabric
  • the part A, the part B, the part E, and the part F are composed of a second fabric
  • other parts of the protective clothing except the hood and the parts A to F are made of a second fabric. That is, parts of the protective clothing corresponding to areas indicated by white blanks in the figures are composed of a first fabric, and parts of the protective clothing corresponding to areas indicated by dots in the figures are composed of a second fabric.
  • one of the pair of sleeve parts has a first sewn part in which the first fabric and the second fabric are sewn
  • the other one of the pair of sleeve parts has a second sewn part in which the first fabric and the second fabric are sewn.
  • the first sewn part S 1 is formed between an elbow joint of a wearer's right arm and a base part of the wearer's right arm at the time of wearing the protective clothing 17
  • the second sewn part is formed between an elbow joint of the wearer's left arm and a base part of the wearer's left arm at the time of wearing the protective clothing 17 .
  • a total area of the first fabric to a total area of the protective clothing was 38%, and a total area of the second fabric to the total area of the protective clothing was 62%.
  • a first fabric was prepared in the similar manner as in Example 1 except that the charged melt-blown non-woven fabric made from polypropylene provided in the first fabric of the protective clothing in Example 1 was replaced with a charged melt-blown non-woven fabric made from polypropylene (15 g/m 2 of basis weight, 0.15 g/cm 3 of bulk density, 100 ⁇ m of thickness, 4 ⁇ m of fiber diameter). Characteristics of the first fabric are as shown in Table 1. In addition, structures of the melt-blown non-woven fabric provided in the first fabric are as shown in Table 2. Structures of two spunbonded non-woven fabrics provided in the first fabric are as shown in Table 3.
  • Example 2 From the obtained first fabric and the obtained second fabric, a plurality of parts corresponding to a plurality of regions constituting the protective clothing were cut out. Next, the plurality of parts were sewn with a sewing machine in order to obtain a protective clothing having a configuration similar to that of the protective clothing in Example 1. The obtained protective clothing was used as a protective clothing in Example 2.
  • a first fabric was prepared in the similar manner as in Example 1 except that the charged melt-blown non-woven fabric made from polypropylene provided in the first fabric of the protective clothing in Example 1 was replaced with a charged melt-blown non-woven fabric made from polypropylene (15 g/m 2 of basis weight, 0.16 g/cm 3 of bulk density, 96 ⁇ m of thickness, 3 ⁇ m of fiber diameter).
  • Characteristics of the first fabric are as shown in Table 1.
  • structures of the melt-blown non-woven fabric provided in the first fabric are as shown in Table 2.
  • Structures of two spunbonded non-woven fabrics provided in the first fabric are as shown in Table 3.
  • Example 3 From the obtained first fabric and the obtained second fabric, a plurality of parts corresponding to a plurality of regions constituting the protective clothing were cut out. Next, the plurality of parts were sewn with a sewing machine in order to obtain a protective clothing having a configuration similar to that of the protective clothing in Example 1. The obtained protective clothing was used as a protective clothing in Example 3.
  • Fabric similar to the first fabric of the protective clothing in Example 1 was prepared as a first fabric.
  • a second fabric was prepared in the similar manner as in Example 1 except that the spunbonded non-woven fabric made from polypropylene provided in the second fabric of the protective clothing in Example 1 was replaced with a spunbonded non-woven fabric made from polypropylene (20 g/m 2 of basis weight, 0.14 g/cm 3 of bulk density, 141 ⁇ m of thickness, 18 ⁇ m of fiber diameter).
  • Characteristics of the second fabric are as shown in Table 4.
  • structures of the melt-blown non-woven fabric provided in the second fabric are as shown in Table 5.
  • Structures of the spunbonded non-woven fabrics provided in the second fabric are as shown in Table 6.
  • Example 4 From the obtained first fabric and the obtained second fabric, a plurality of parts corresponding to a plurality of regions constituting the protective clothing were cut out. Next, the plurality of parts were sewn with a sewing machine in order to obtain a protective clothing having a configuration similar to that of the protective clothing in Example 1. The obtained protective clothing was used as a protective clothing in Example 4.
  • Fabric similar to the first fabric of the protective clothing in Example 1 was prepared as a first fabric.
  • a second fabric was prepared in the similar manner as in Example 1 except that the spunbonded non-woven fabric made from polypropylene provided in the second fabric of the protective clothing in Example 1 was replaced with a spunbonded non-woven fabric made from polypropylene (20 g/m 2 of basis weight, 0.13 g/cm 3 of bulk density, 149 ⁇ m of thickness, 19 ⁇ m of fiber diameter).
  • Characteristics of the second fabric are as shown in Table 4.
  • structures of the melt-blown non-woven fabric provided in the second fabric are as shown in Table 5.
  • Structures of the spunbonded non-woven fabrics provided in the second fabric are as shown in Table 6.
  • Example 5 From the obtained first fabric and the obtained second fabric, a plurality of parts corresponding to a plurality of regions constituting the protective clothing were cut out. Next, the plurality of parts were sewn with a sewing machine in order to obtain a protective clothing having a configuration similar to that of the protective clothing in Example 1. The obtained protective clothing was used as a protective clothing in Example 5.
  • Fabric similar to the first fabric of the protective clothing in Example 1 was prepared as a first fabric.
  • a second fabric was prepared in the similar manner as in Example 1 except that the spunbonded non-woven fabric made from polypropylene provided in the second fabric of the protective clothing in Example 1 was replaced with a spunbonded non-woven fabric made from polypropylene (20 g/m 2 of basis weight, 0.11 g/cm 3 of bulk density, 190 ⁇ m of thickness, 22 ⁇ m of fiber diameter).
  • Characteristics of the second fabric are as shown in Table 4.
  • structures of the melt-blown non-woven fabric provided in the second fabric are as shown in Table 5.
  • Structures of the spunbonded non-woven fabrics provided in the second fabric are as shown in Table 6.
  • Example 6 From the obtained first fabric and the obtained second fabric, a plurality of parts corresponding to a plurality of regions constituting the protective clothing were cut out. Next, the plurality of parts were sewn with a sewing machine in order to obtain a protective clothing having a configuration similar to that of the protective clothing in Example 1. The obtained protective clothing was used as a protective clothing in Example 6.
  • Fabric similar to the first fabric of the protective clothing in Example 1 was prepared as a first fabric.
  • fabric similar to the second fabric of the protective clothing in Example 1 was prepared as a second fabric.
  • Example 7 From the obtained first fabric and the obtained second fabric, a plurality of parts corresponding to a plurality of regions constituting the protective clothing were cut out. Next, these parts were sewn together with a sewing machine in order to form an overall type protective clothing with a hood. The obtained protective clothing was used as a protective clothing in Example 7.
  • FIGS. 4 and 5 A conceptual diagram of the obtained protective clothing is shown in FIGS. 4 and 5 . That is, FIG. 4 is a conceptual diagram of a front surface of the protective clothing 18 in Example 7 which is one embodiment of the protective clothing of the present invention, and FIG. 5 is a conceptual diagram of a back surface of the protective clothing 18 in Example 7 which is one embodiment of the present invention.
  • the protective clothing 18 comprises a pair of sleeve parts, a body part, a lower garment, and a hood 15 .
  • the front body part comprises a part C covering a wearer's greater pectoral muscle and a part D covering the wearer's subscapular muscle.
  • one of the pair of sleeve parts comprises a part A covering an elbow joint of the wearer's right arm. Furthermore, the other one of the pair of sleeve parts comprises a part B covering an elbow joint of the wearer's left arm. Besides, the above-described part A is indicated by reference numeral 10 , and the above-described part B is indicated by reference numeral 11 . Moreover, the lower garment comprises a part E covering a knee joint of the wearer's right leg and a part F covering a knee joint of the wearer's left leg.
  • the above-described part E is indicated by reference numeral 13
  • the above-described part F is indicated by reference numeral 14
  • the hood, the part C, the part D, the part E, and the part F are composed of a first fabric
  • the part A and the part B are composed of a second fabric
  • other parts of the protective clothing except the hood and the parts A to F are made of a second fabric. That is, parts of the protective clothing corresponding to areas indicated by white blanks in the figures are composed of a first fabric, and parts of the protective clothing corresponding to areas indicated by dots in the figures are composed of a second fabric.
  • a total area of the first fabric to a total area of the protective clothing was 64%, and a total area of the second fabric to the total area of the protective clothing was 36%.
  • Example 7 Next, using the protective clothing in Example 7, three monitors performed a comfortability test and a workability test. Types of fabric used for each part and evaluation results were as shown in Table 9.
  • Fabric similar to the first fabric of the protective clothing in Example 1 was prepared as a first fabric.
  • fabric similar to the second fabric of the protective clothing in Example 1 was prepared as a second fabric.
  • Example 8 From the obtained first fabric and the obtained second fabric, a plurality of parts corresponding to a plurality of regions constituting the protective clothing were cut out. Next, these parts were sewn together with a sewing machine in order to form an overall type protective clothing with a hood. The obtained protective clothing was used as a protective clothing in Example 8.
  • FIGS. 6 and 7 A conceptual diagram of the obtained protective clothing is shown in FIGS. 6 and 7 . That is, FIG. 6 is a conceptual diagram of a front surface of the protective clothing 19 in Example 8 which is one embodiment of the protective clothing of the present invention, and FIG. 7 is a conceptual diagram of a back surface of the protective clothing 19 in Example 8 which is one embodiment of the present invention.
  • the protective clothing 19 comprises a pair of sleeve parts, a body part, a lower garment, and a hood 15 .
  • the front body part comprises a part C covering a wearer's greater pectoral muscle and a part D covering the wearer's subscapular muscle.
  • one of the pair of sleeve parts comprises a part A covering an elbow joint of the wearer's right arm. Furthermore, the other one of the pair of sleeve parts comprises a part B covering an elbow joint of the wearer's left arm. Besides, the above-described part A is indicated by reference numeral 10 , and the above-described part B is indicated by reference numeral 11 . Moreover, the lower garment comprises a part E covering a knee joint of the wearer's right leg and a part F covering a knee joint of the wearer's left leg.
  • the above-described part E is indicated by reference numeral 13
  • the above-described part F is indicated by reference numeral 14
  • the part C is composed of a first fabric
  • the hood, the part A, the part B, the part D, the part E, and the part F are composed of a second fabric.
  • other parts of the protective clothing except the hood and the parts A to F are made of a second fabric. That is, parts of the protective clothing corresponding to areas indicated by white blanks in the figures are composed of a first fabric, and parts of the protective clothing corresponding to areas indicated by dots in the figures are composed of a second fabric.
  • a total area of the first fabric to a total area of the protective clothing was 23%, and a total area of the second fabric to the total area of the protective clothing was 77%.
  • Example 8 using the protective clothing in Example 8, three monitors performed a comfortability test and a workability test. Types of fabric used for each part and evaluation results were as shown in Table 9.
  • Fabric similar to the first fabric of the protective clothing in Example 1 was prepared as a first fabric.
  • a second fabric was prepared in the similar manner as in Example 1 except that the spunbonded non-woven fabric made from polypropylene provided in the second fabric of the protective clothing in Example 1 was replaced with a spunbonded non-woven fabric made from polypropylene (20 g/m 2 of basis weight, 0.18 g/cm 3 of bulk density, 113 ⁇ m of thickness, 14 ⁇ m of fiber diameter).
  • Characteristics of the second fabric are as shown in Table 4.
  • structures of the melt-blown non-woven fabric provided in the second fabric are as shown in Table 5.
  • Structures of the spunbonded non-woven fabrics provided in the second fabric are as shown in Table 6.
  • Example 9 From the obtained first fabric and the obtained second fabric, a plurality of parts corresponding to a plurality of regions constituting the protective clothing were cut out. Next, the plurality of parts were sewn with a sewing machine in order to obtain a protective clothing having a configuration similar to that of the protective clothing in Example 1. The obtained protective clothing was used as a protective clothing in Example 9.
  • a first fabric was prepared in the similar manner as in Example 1 except that the charged melt-blown non-woven fabric made from polypropylene provided in the first fabric of the protective clothing in Example 1 was replaced with a charged melt-blown non-woven fabric made from polypropylene (15 g/m 2 of basis weight, 0.18 g/cm 3 of bulk density, 85 ⁇ m of thickness, 3 ⁇ m of fiber diameter).
  • Characteristics of the first fabric are as shown in Table 1.
  • structures of the melt-blown non-woven fabric provided in the first fabric are as shown in Table 2.
  • Structures of two spunbonded non-woven fabrics provided in the first fabric are as shown in Table 3.
  • fabric similar to the second fabric of the protective clothing in Example 1 was prepared as a second fabric. Then, from the obtained first fabric and the obtained second fabric, a plurality of parts corresponding to a plurality of regions constituting the protective clothing were cut out. Next, the plurality of parts were sewn with a sewing machine in order to obtain a protective clothing having a configuration similar to that of the protective clothing in Example 1. The obtained protective clothing was used as a protective clothing in Comparative example 1.
  • Fabric similar to the first fabric of the protective clothing in Example 1 was prepared as a first fabric.
  • a second fabric was prepared in the similar manner as in Example 1 except that the spunbonded non-woven fabric made from polypropylene provided in the second fabric of the protective clothing in Example 1 was replaced with a spunbonded non-woven fabric made from polypropylene (20 g/m 2 of basis weight, 0.09 g/cm 3 of bulk density, 227 ⁇ m of thickness, 25 ⁇ m of fiber diameter).
  • Characteristics of the second fabric are as shown in Table 4.
  • structures of the melt-blown non-woven fabric provided in the second fabric are as shown in Table 5.
  • Structures of the spunbonded non-woven fabrics provided in the second fabric are as shown in Table 6.
  • Fabric similar to the first fabric of the protective clothing in Example 1 was prepared as a first fabric. Then, from the obtained first fabric, a plurality of parts corresponding to a plurality of regions constituting the protective clothing were cut out. Next, these parts were sewn together with a sewing machine in order to form an overall type protective clothing with a hood. The obtained protective clothing was used as a protective clothing in Comparative example 3.
  • FIGS. 8 and 9 A conceptual diagram of the obtained protective clothing is shown in FIGS. 8 and 9 . That is, FIG. 8 is a conceptual diagram of a front surface of the protective clothing 20 in Comparative example 3 which is one embodiment of the protective clothing of the present invention, and FIG. 9 is a conceptual diagram of a back surface of the protective clothing 20 in Comparative example 3 which is one embodiment of the present invention.
  • the protective clothing 20 comprises a pair of sleeve parts, a body part, a lower garment, and a hood 15 .
  • the front body part comprises a part C covering a wearer's greater pectoral muscle and a part D covering the wearer's subscapular muscle.
  • one of the pair of sleeve parts comprises a part A covering an elbow joint of the wearer's right arm. Furthermore, the other one of the pair of sleeve parts comprises a part B covering an elbow joint of the wearer's left arm. Besides, the above-described part A is indicated by reference numeral 10 , and the above-described part B is indicated by reference numeral 11 . Moreover, the lower garment comprises a part E covering a knee joint of the wearer's right leg and a part F covering a knee joint of the wearer's left leg.
  • the above-described part E is indicated by reference numeral 13
  • the above-described part F is indicated by reference numeral 14
  • the hood, the part A, the part B, the part C, the part D, the part E, and the part F are composed of a first fabric.
  • other parts of the protective clothing except the hood and the parts A to F are made of a first fabric. That is, the protective clothing in Comparative example 3 is composed of a first fabric only.
  • a total area of the first fabric to a total area of the protective clothing was 100%.
  • three monitors performed a comfortability test and a workability test. Types of fabric used for each part and evaluation results were as shown in Table 9.
  • Fabric similar to the second fabric of the protective clothing in Example 1 was prepared as a second fabric. Then, from the obtained second fabric, a plurality of parts corresponding to a plurality of regions constituting the protective clothing were cut out. Next, these parts were sewn together with a sewing machine in order to form an overall type protective clothing with a hood. The obtained protective clothing was used as a protective clothing in Comparative example 4.
  • FIGS. 10 and 11 A conceptual diagram of the obtained protective clothing is shown in FIGS. 10 and 11 . That is, FIG. 10 is a conceptual diagram of a front surface of the protective clothing 21 in Comparative example 4 which is one embodiment of the protective clothing of the present invention, and FIG. 11 is a conceptual diagram of a back surface of the protective clothing 21 in Comparative example 4 which is one embodiment of the present invention.
  • the protective clothing 21 comprises a pair of sleeve parts, a body part, a lower garment, and a hood 15 .
  • the front body part comprises a part C covering a wearer's greater pectoral muscle and a part D covering the wearer's subscapular muscle.
  • one of the pair of sleeve parts comprises a part A covering an elbow joint of the wearer's right arm. Furthermore, the other one of the pair of sleeve parts comprises a part B covering an elbow joint of the wearer's left arm. Besides, the above-described part A is indicated by reference numeral 10 , and the above-described part B is indicated by reference numeral 11 . Moreover, the lower garment comprises a part E covering a knee joint of the wearer's right leg and a part F covering a knee joint of the wearer's left leg.
  • the above-described part E is indicated by reference numeral 13
  • the above-described part F is indicated by reference numeral 14
  • the hood, the part A, the part B, the part C, the part D, the part E, and the part F are composed of a second fabric.
  • other parts of the protective clothing except the hood and the parts A to F are made of a second fabric. That is, the protective clothing in Comparative example 4 is composed of a second fabric only.
  • a total area of the second fabric to a total area of the protective clothing was 100%.
  • a protective clothing 22 was produced by the similar method as in Example 4 except that the positions of the first sewn part S 1 and the second sewn part S 2 were changed to positions of a base part of a wearer's right arm and a base part of the wearer's left arm, respectively, in the protective clothing of Example 4 (protective clothing 17 , see FIGS. 2 to 3 ).
  • a conceptual diagram of the obtained protective clothing is shown in FIGS. 12 and 13 .
  • a total area of the first fabric to a total area of the protective clothing was 33%, and a total area of the second fabric to the total area of the protective clothing was 67%.
  • the protective clothing 23 in Example 11 further has a part G covering a wearer's waist at the time of wearing the protective clothing and a sewn part (a third sewn part S 3 ) in which a first fabric and a second fabric are sewn, in the protective clothing of Example 4 (protective clothing 17 , see FIGS. 2 to 3 ).
  • a conceptual diagram of the protective clothing 23 is shown in FIGS. 14 and 15 .
  • the above-described part G is indicated by reference numeral 24 .
  • the second fabric is arranged on the part G.
  • a gather part G 1 tightening a wearer's waist is formed on the part G.
  • the third sewn part S 3 is provided on the wearer's head side rather than the gather part G 1 .
  • a total area of the first fabric to a total area of the protective clothing was 38%, and a total area of the second fabric to the total area of the protective clothing was 62%.
  • Example 3 example 1 First Air permeability cm 3 /cm 2 /sec 94 60 32 23 fabric Bending resistance mm 85 85 86 87 Filtration efficiency % 84 89 95 98 Static pressure difference Pa 1.5 1.9 3.1 4.2 QF value — 1.22 1.16 0.97 0.93
  • Example 3 example 1 Melt-blown non-woven Bulk density g/cm 3 0.14 0.15 0.16 0.18 fabric of first fabric Basis weight g/m 2 15 15 15 15 Thickness ⁇ m 109 100 96 85 Fiber diameter ⁇ m 6 4 3 3
  • Example 9 Second fabric Air cm 3 /cm 2 / 20 23 21 18 15 34 permeability sec Bending mm 71 32 54 80 12 98 resistance Filtration % 48 28 35 50 15 52 efficiency Static pressure Pa 6.9 6.7 6.8 6.9 7.1 5.8 difference QF value — 0.09 0.05 0.06 0.10 0.02 0.13
  • Example 1 Melt-blown non-woven Bulk density g/cm 3 0.20 fabric of second fabric Basis weight g/m 2 10 Thickness ⁇ m 50 Fiber diameter ⁇ m 3
  • Example 9 Spunbonded Bulk density g/cm 3 0.13 0.14 0.13 0.11 0.09 0.16 non-woven Basis weight g/m 2 20 20 20 20 10 30 fabric of Thickness ⁇ m 155 141 149 190 113 192 second fabric Fiber diameter ⁇ m 20 18 19 22 14 25
  • Example 3 example 1 Fabric First fabric Air permeability cm 3 /cm 2 / 94 60 32 22 sec Filtration efficiency % 84 65 52 48 Second fabric Bending resistance mm 71 71 71 Filtration efficiency % 48 48 48 48 Protective clothing Temperature in clothing ° C. 33 33 33 34 Relative temperature in clothing % RH 70 74 78 83 Evaluation on Monitor No.1 A A B B comfortability Monitor No.2 A B B C Monitor No.3 A B B C Most common A B B C evaluation Evaluation on Monitor No.1 A A A A workability Monitor No.2 B B B B B Monitor No.3 B B B B B Most common B B B B B evaluation
  • Table 7 summarizes a protective clothing made from a first fabric having a different air permeability and a second fabric having a bending resistance of 71 mm.
  • a bulk density of the melt-blown non-woven fabric provided in the first fabric is 0.14 g/cm 3 or more, so that an air permeability of the first fabric became 32 cm 3 /cm 2 /sec or more.
  • a temperature inside the closing when worn became 33° C., and a relative humidity became 78% or less. Therefore, even in a wearer's comfortability test, the evaluation was judged as A or B. In addition, also in a wearer's workability test, the evaluation was judged as B.
  • the protective clothings in Examples 1 to 3 were able to achieve both comfortability and workability at a higher level.
  • an air permeability of the first fabric of the protective clothing was 22 cm 3 /cm 2 /sec, and a bending resistance of the second fabric of the protective clothing was 71 mm.
  • a bulk density of the melt-blown non-woven fabric provided in the first fabric of the protective clothing in Comparative example 1 was as high as 0.18 g/cm 3 . Therefore, the air permeability of the first fabric was low.
  • a relative humidity inside the protective clothing at the time of wearing the protective clothing in Comparative example 1 using the above-described first fabric and the above-described second fabric was 83%, which was higher than a relative humidity outside the protective clothing. Therefore, the protective clothing was judged as C also in a wearer's comfortability test, in which comfortability was inferior.
  • Example 9 Fabric First fabric Air permeability cm 3 /cm 2 / 94 94 94 94 sec Filtration efficiency % 84 84 84 84 84 84 84 Second fabric Bending resistance mm 71 32 54 80 12 98 Filtration efficiency % 48 28 35 50 15 52 Protective clothing Temperature in clothing ° C.
  • Table 8 summarizes a protective clothing made from a first fabric having an air permeability of 94 cm 3 /cm 2 /sec and a second fabric having a different bending resistance.
  • a bulk density of the spunbonded non-woven fabric provided in the second fabric was 0.14 g/cm 3 or less, and a fiber diameter was 22 ⁇ m or less, so that a bending resistance became 80 mm or less.
  • the protective clothing was judged as A in a wearer's comfortability test.
  • the protective clothing was judged as A or B also in a wearer's workability test. As described above, it can be said that the protective clothings in Examples 1, 4 to 6 were able to achieve both comfortability and workability at a higher level.
  • Example 9 an air permeability of the first fabric of the protective clothing was 94 cm 3 /cm 2 /sec, and a bending resistance of the second fabric of the protective clothing was 12 mm.
  • a bulk density of the spunbonded non-woven fabric provided in the second fabric of the protective clothing in Example 9 was 0.09 g/cm 3 , and a fiber diameter was 14 ⁇ m. Therefore, the bending resistance of the second fabric was low.
  • the protective clothing was judged as A also in a workability test at the time of wearing the protective clothing in Example 9 using the above-described first fabric and the above-described second fabric and was excellent in workability. Furthermore, the protective clothing in Example 9 was judged as A also in a result of a comfortability evaluation and was excellent in comfortability.
  • an air permeability of the first fabric of the protective clothing was 94 cm 3 /cm 2 /sec, and a bending resistance of the second fabric of the protective clothing was 98 mm.
  • a bulk density of the spunbonded non-woven fabric provided in the second fabric of the protective clothing in Comparative example 2 was 0.16 g/cm 3 , and a fiber diameter was 25 ⁇ m, so that bending resistance of the second fabric was high. Therefore, the protective clothing in Comparative example 2 using the above-described first fabric and the above-described second fabric was judged as C in a workability test at the time of wearing and was inferior in workability.
  • Table 9 summarizes an arrangement in a protective clothing with a first fabric having an air permeability of 94 cm 3 /cm 2 /sec and a protective clothing having a different arrangement in the protective clothing with a second fabric having a bending resistance of 71 mm.
  • first fabrics were arranged on a part C covering a wearer's greater pectoral muscle, a part D covering the wearer's subscapular muscle, and a hood.
  • second fabrics were arranged on a part A covering an elbow joint of the wearer's right arm, a part B covering an elbow joint of the wearer's left arm, a part E covering a knee joint of the wearer's right leg, and a part F covering a knee joint of the wearer's left leg.
  • Example 7 first fabrics were arranged on a part C covering a wearer's greater pectoral muscle, a part D covering the wearer's subscapular muscle, a hood, a part E covering a knee joint of the wearer's right leg, and a part F covering a knee joint of the wearer's left leg. Moreover, second fabrics were arranged on a part A covering an elbow joint of the wearer's right arm and a part B covering an elbow joint of the wearer's left arm.
  • Example 8 a first fabric was arranged on a part C covering a wearer's greater pectoral muscle. Moreover, second fabrics were arranged on a part D covering the wearer's subscapular muscle, a hood, a part A covering an elbow joint of the wearer's right arm, a part B covering an elbow joint of the wearer's left arm, a part E covering a knee joint of the wearer's right leg, and a part F covering a knee joint of the wearer's left leg.
  • Example 4 The similar arrangement as in Example 4 was applied to Example 10 except that the positions of the first sewn part S 1 and the second sewn part S 2 were changed to positions of a base part of a wearer's right arm and a base part of the wearer's left arm, respectively, in the protective clothing of Example 4 (protective clothing 17 , see FIGS. 2 to 3 ).
  • the protective clothing in Example 11 further has a part G covering a wearer's waist at the time of wearing the protective clothing and a sewn part (a third sewn part S 3 ) in which a first fabric and a second fabric are sewn, wherein a gather part G 1 tightening the wearer's waist is formed on the part G, in the protective clothing of Example 4 (protective clothing 17 , see FIGS. 2 to 3 ).
  • a total area of a first fabric to a total area of a protective clothing was 23 to 64%, and a total area of a second fabric to the total area of the protective clothing was 77 to 36%.
  • the first sewn part S 1 and the second sewn part S 2 are formed at the base of each arm. Therefore, the second fabric is arranged on the wearer's armpit part.
  • air permeability in areas where sweat easily occur such as armpit parts and a periphery part of armpits, was somewhat inferior to that of the protective clothing 17 of Example 4.
  • this protective clothing 22 was excellent in workability because it made movements of arms and shoulders at base parts of the arms and shoulder parts much easier than the protective clothing 17 of Example 4.
  • the third sewn part S 3 is provided on the wearer's head side rather than the gather part G 1 . Therefore, a volume in the garment between the protective clothing 23 and the wearer's body was able to be increased or decreased in accordance with the wearer's movement (for example, movements of step aerobics in the workability evaluation).
  • air inside the garment of the protective clothing 23 was discharged to the outside the garment from the part C consisting of the first fabric on the head side rather than the third sewn part S 3 with the gather part G 1 being as a starting point, and air outside the garment was taken in from the part C. Accordingly, the protective clothing 23 was able to replace the air inside and outside the protective clothing 23 . This allowed for the wearer to feel even more comfortable.
  • the protective clothing was made from a first fabric only. Therefore, in the workability test at the time of wearing, the protective clothing was judged as C and was inferior in workability. Moreover, in Comparative example 4, the protective clothing was made from a second fabric only. As a result, the protective clothing made of a second fabric only had a temperature at 34° C. and a relative humidity of 83% inside the clothing when worn. Accordingly, the protective clothing was judged as C in the wearer's comfortability test and was inferior in comfortability.

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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)
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JPWO2020250565A1 (ja) 2021-09-13
EP3984395A4 (en) 2023-07-12
MX2021014438A (es) 2022-01-06
EP3984395A1 (en) 2022-04-20

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