Protective clothing for asbestos removal work with blower mounting part

Abstract

To provide protective clothing for asbestos removal work with a blower mounting part, capable of reducing the risk of heat stroke even in asbestos removal work which is severe work.SOLUTION: Protective clothing P for asbestos removal work with a blower mounting part comprises: an outside air introduction part 1; an exhaust part 2; and a blower mounting part 4 which is disposed on the inside of the protective clothing and on the outside air introduction part 1, and on which a blower is detachably mounted. The outside air introduction part 1 comprises a filter member having a laminated intermediate which contains a polyacrylonitrile fiber and a polyolefin fiber and has a basis weight of 150 to 250 g / m2, and an outer layer and an inner layer which contain a polypropylene fiber and has a basis weight of 15 to 35 g / m2. The other parts except for the outside air introduction part 1, the exhaust part 2 and the blower mounting part 4 comprise a fabric having a plastic film layer.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to protective clothing for asbestos removal work that is equipped with a blower attachment section. [Background technology]

[0002] Asbestos was widely used in the latter half of the 20th century for building materials, friction materials, etc. However, since it caused serious health problems such as lung cancer and mesothelioma after a long latency period for workers and the general public who inhaled asbestos, the use of asbestos is now banned in most developed countries.

[0003] However, as the demolition of existing buildings will continue until the mid-21st century, measures to prevent asbestos exposure for workers engaged in tasks such as the demolition of asbestos-containing buildings, and measures to prevent the dispersion and leakage of asbestos into the general environment, have become extremely important and urgent issues.

[0004] For this reason, the Ministry of Health, Labor and Welfare and the Ministry of the Environment have compiled a "Comprehensive Manual on Measures to Prevent Asbestos Exposure and Prevent Asbestos Dispersal and Leakage During the Demolition of Buildings, etc." and provide guidelines for asbestos removal work. [Prior art documents] [Non-patent literature]

[0005] [Non-Patent Document 1] Ministry of Health, Labor and Welfare, Ministry of the Environment "Manual for thorough measures to prevent asbestos exposure and asbestos scattering and leakage during the demolition of buildings, etc." March 2021 (with corrections made in March 2022)<https: / / www.env.go.jp / content / 900396898.pdf> Summary of the Invention [Problem to be solved by the invention]

[0006] However, as described in Non-Patent Document 1, in order to prevent asbestos from adhering to the body surface, underwear, and work clothes worn under protective clothing, it is stipulated that workers should wear protective clothing equivalent to or better than JIS T 8115 airborne solid dust protective sealing suit (Type 5). Such protective clothing covers the entire body including the head, and the joints between the protective clothing and the full face mask, gloves, shoe covers, etc. of the respiratory protective equipment must be taped, making it very airtight. Performing very complicated and diverse tasks for long periods of time while wearing such protective clothing places a heavy burden on workers.

[0007] Furthermore, in such circumstances, the risk of heatstroke increases significantly when working during the intense heat of summer. Also, the heat can make it difficult for workers to maintain their concentration, which can lead to mistakes that should not be made, especially in asbestos removal work.

[0008] The present invention has been made to solve the above-mentioned problems, and has as its object to reduce the risk of heat stroke even during asbestos removal work, which is harsh labor. [Means for solving the problem]

[0009] The protective clothing for asbestos removal work with a blower attachment part according to one aspect of the present invention is a protective clothing for asbestos removal work with a blower attachment part, the protective clothing comprising: an outside air inlet part provided on both the left and right sides of a front side torso part; an exhaust part provided on a back side torso part and above the outside air inlet part; and a blower attachment part provided inside the protective clothing of the outside air inlet part and for removably attaching a blower, the outside air inlet part being made of a material having a basis weight of 150 to 250 g / m2 containing polyacrylonitrile fiber and polyolefin fiber. 2 and a laminated intermediate body having a basis weight of 15 to 35 g / m2 containing polypropylene fiber. 2 and an inner layer and an outer layer, and except for the outside air intake section, the exhaust section, and the blower attachment section, the filter member includes a fabric having a plastic film layer.

[0010] According to this aspect, almost no asbestos fibers are taken into the protective clothing, and outside air can be efficiently introduced into the protective clothing. The introduced outside air is then exhausted from the exhaust section. This reduces the risk of heat stroke for workers.

[0011] In addition, according to another aspect of the present invention, protective clothing for asbestos removal work with a blower attachment section is provided with an outside air inlet section provided on both the left and right sides of a back side torso section, an exhaust section provided on a front side torso section above the outside air inlet section, and a blower attachment section provided inside the protective clothing at the outside air inlet section and for removably attaching a blower, the outside air inlet section being made of a 150 to 250 g / m2 fiber containing polyacrylonitrile fiber and polyolefin fiber. 2 and a laminated intermediate body having a basis weight of 15 to 35 g / m2 containing polypropylene fiber. 2 and an inner layer and an outer layer, and except for the outside air intake section, the exhaust section, and the blower attachment section, the filter member includes a fabric having a plastic film layer.

[0012] According to this aspect, it is possible to prevent asbestos fibers from getting inside the protective clothing, and to efficiently introduce outside air into the protective clothing. The introduced outside air is then exhausted from the exhaust section in the front body part. This reduces the risk of heat stroke for workers.

[0013] In the protective clothing for asbestos removal work with a blower attachment section according to each of the above aspects, the laminated intermediate body, the outer layer, and the inner layer may be bonded together by ultrasonic bonding.

[0014] According to this aspect, it is possible to more efficiently prevent asbestos fibers from being taken into the protective clothing, and to provide an outside air inlet section having good breathability.

[0015] In the protective clothing for asbestos removal work with a blower attachment section according to each of the above aspects, the exhaust section may be the SMS nonwoven fabric or the filter member.

[0016] According to this embodiment, good exhaust performance is achieved, and the possibility of asbestos fibers being taken in through the exhaust section can be significantly reduced.

[0017] In the protective clothing for asbestos removal work with a blower attachment section of each of the above aspects, the blower attachment section may be provided with a bag-type storage section with a lid.

[0018] According to this aspect, it becomes easy for a worker to attach the blower when putting on or taking off the protective clothing.

[0019] In each of the above-mentioned aspects of protective clothing for asbestos removal work with a blower attachment section, the blower attachment section may include a synthetic resin member having an opening for attaching a blower, and an outer frame to which the synthetic resin member is attached, and the opening may include a substantially U-shaped blower first engagement section, a blower second engagement section above the blower first engagement section, and a cutout section provided between the blower first engagement section and the blower second engagement section.

[0020] According to this aspect, it becomes even easier for the worker to install the blower, and the blower can be held stably. Effect of the Invention

[0021] According to the protective clothing for asbestos removal work with a blower attachment section of the present invention, the risk of heat stroke can be reduced even during asbestos removal work, which is a harsh task. [Brief description of the drawings]

[0022] [Figure 1] 1A and 1B are a front view and a back view, respectively, of a protective suit for asbestos removal work with a blower attachment section according to a first embodiment of the present invention. [Diagram 2] 5A and 5B are a front view and a back view, respectively, of a protective suit for asbestos removal work with a blower attachment section according to a second embodiment of the present invention. [Diagram 3] 1 is an enlarged front view of an outside air intake section of protective clothing for asbestos removal work with a blower attachment section according to a first embodiment of the present invention. FIG. [Figure 4] 1A and 1B are a schematic front view and a schematic cross-sectional view showing an ultrasonically bonded portion of an example of a filter member used in a protective suit for asbestos removal work with a blower attachment section of the present invention. [Diagram 5] FIG. 1A is a schematic side view and FIG. 1B is a schematic rear view showing a blower housed in a bag-type storage section with a lid, which is an example of a blower attachment section used in the protective clothing for asbestos removal work with a blower attachment section of the present invention. [Figure 6] This is a schematic side view showing the state in which a blower is placed in a bag-type storage section with a lid, which is an example of a blower attachment section used in the protective clothing for asbestos removal work with a blower attachment section of the present invention, and the lid is closed. [Figure 7] 10 is a schematic diagram showing another example of a blower attachment part used in the protective clothing for asbestos removal work with a blower attachment part of the present invention. FIG. [Figure 8] FIG. 1 is a schematic diagram showing (a) the process of attaching a blower to a blower attachment part of another example of protective clothing for asbestos removal work with a blower attachment part of the present invention, and (b) a schematic diagram showing the blower attached state. [Figure 9] 10 is a schematic diagram showing a modified example of another example of a blower attachment part used in the protective clothing for asbestos removal work with a blower attachment part of the present invention. FIG. [Figure 10] 10 is a schematic side view showing a state in which a blower is attached to a blower attachment part of another example used in the protective clothing for asbestos removal work with a blower attachment part of the present invention. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0023] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0024] Fig. 1 shows (a) a front view and (b) a back view of a protective suit for asbestos removal work with a blower attachment part according to a first embodiment of the present invention. As shown in Fig. 1(a), the protective suit for asbestos removal work with a blower attachment part P has outside air intake parts 1 on both the left and right sides of the front side torso part, and as shown in (b), has an exhaust part 2 above the outside air intake part 1 of the back side torso part.

[0025] Asbestos removal work protective clothing P with blower attachment section meets the requirements of JIS T 8115 sealed clothing for protecting against suspended solid dust (Type 5) in asbestos removal work locations such as inside negative pressure isolation spaces, as described on page 253 of the "Comprehensive Manual for Preventing Asbestos Exposure and Asbestos Scattering and Leakage During the Demolition of Buildings, etc." March 2021 (reflecting corrections from March 2022).

[0026] The material of the protective clothing P for asbestos removal work with a blower attachment section is not particularly limited as long as it meets the requirements of JIS T 8115 airtight clothing for protection against suspended solid dust (Type 5), but for example, a structure of one or more layers selected from the group consisting of a plastic film layer, an SMS nonwoven fabric layer, and a polypropylene spunbond layer is considered. Of these, a two-layer structure of a plastic film layer and an SMS nonwoven fabric layer is preferable from the viewpoint of preventing the intake of asbestos fibers as much as possible. This material is contained in the protective clothing P for asbestos removal work with a blower attachment section, except for the outside air intake section, the exhaust section, and the blower attachment section.

[0027] Examples of materials for the plastic film layer include polyethylene, polyvinyl chloride, polyethylene terephthalate, polyacrylonitrile, ethylene-vinyl alcohol copolymer, polyvinyl alcohol, etc. Among these, polyethylene is preferred from the viewpoint of cost reduction, and high-density polyethylene is more preferred from the viewpoint of asbestos fiber incorporation prevention performance.

[0028] The material of the SMS nonwoven fabric layer may be, for example, a three-layer structure of a polypropylene spunbond layer, a polypropylene meltblown layer, and a polypropylene spunbond layer.

[0029] The outside air introduction section 1 is for preventing asbestos fibers from getting inside the protective clothing P for asbestos removal work with a blower attachment section, and for introducing outside air into the protective clothing P for asbestos removal work with a blower attachment section. The outside air introduction section 1 is usually provided on the front side of the torso section, but may also be provided on the side part (flank part) of the torso section.

[0030] The exhaust section 2 is for exhausting outside air introduced into the protective suit P for asbestos removal work with a blower attachment section. From the viewpoint of effectively exhausting the air inside the protective suit that has been warmed by body temperature, the exhaust section 2 is provided above the outside air inlet section 1 and on the opposite side of the outside air inlet section 1. Examples of materials for the exhaust section 2 include SMS nonwoven fabric and the same filters as those for the outside air inlet section 1. It is preferable that the area of ​​the exhaust section 2 is at least larger than that of the outside air inlet section 1.

[0031] Fig. 2 is (a) a front view and (b) a back view of a protective suit for asbestos removal work with a blower attachment part according to a second embodiment of the present invention. As shown in Fig. 2(b), the protective suit for asbestos removal work with a blower attachment part P1 has outside air inlet parts 100 on both the left and right sides of the back side torso part, and as shown in Fig. 2(a), has an exhaust part 200 above the outside air inlet part 100 of the front side torso part. In this embodiment, the outside air inlet part 100 may also be provided on the side part (flank part) of the torso part.

[0032] Fig. 3 is an enlarged front view of the outside air intake section of the protective clothing for asbestos removal work with a blower attachment section according to the first embodiment of the present invention. As shown in Fig. 3, the outside air intake section 1 is formed by sealing an opening provided in the protective clothing for asbestos removal work with a blower attachment section P with a filter member 10. Inside the protective clothing for asbestos removal work with a blower attachment section P in the outside air intake section 1, a blower F is detachably attached to the blower attachment section, and when the blower F is operated, outside air is taken into the protective clothing for asbestos removal work with a blower attachment section P through the filter member 10.

[0033] Fig. 4 shows (a) a schematic front view showing the ultrasonic bonding portion and (b) a schematic cross-sectional view of an example of a filter member used in the protective clothing for asbestos removal work with a blower attachment part of the present invention. The filter member 10 must be structured so that asbestos fibers do not invade the inside of the protective clothing for asbestos removal work with a blower attachment part during asbestos removal work. As shown in Fig. 4(b), the filter member 10 has a laminated intermediate body L2 containing polyacrylonitrile fibers and polyolefin fibers, and an outer layer L1 and an inner layer L3 containing polypropylene fibers.

[0034] The basis weight of the laminated intermediate L2 is 150 to 250 g / m 2 and preferably 160 to 240 g / m 2 The basis weight of the outer layer L1 and the basis weight of the inner layer L3 are 15 to 35 g / m 2 and preferably 20 to 30 g / m 2 It is.

[0035] The laminated intermediate L2 can be produced by a known method, and examples of such methods include those described in JP-A-7-256024, JP-A-2000-189732, JP-A-2002-249963, etc. Examples of polyolefin fibers include polyethylene and polypropylene. Among these, polypropylene is preferred from the viewpoints of maintaining breathability and effectively preventing the intrusion of asbestos fibers.

[0036] The outer layer L1 and the inner layer L3 can be manufactured by a known method. For example, a mask made of a nonwoven fabric of polypropylene fibers can be used, similar to a commonly manufactured mask made of a nonwoven fabric containing polypropylene.

[0037] Examples of methods for manufacturing the filter member 10 include spunbonding and ultrasonic bonding. Of these, in the present case, ultrasonic bonding is preferable. The filter member 10 is manufactured by laminating L1, L2, and L3, and ultrasonically bonding the outer frame adhesive portion E1 and the multiple inner frame adhesive portions E2 as shown in FIG. 4(a).

[0038] The filter member 10 is attached in such a way that it seals the opening provided in the asbestos removal work protective clothing P with a blower attachment section, completely blocking the opening. Examples of the attachment method include double-sided tape, sewing, etc. The size of the opening is preferably slightly smaller than the filter member 10, and more preferably the same size as the ventilation section 12.

[0039] 5A and 5B are schematic side and rear views showing a state in which a blower is accommodated in a bag-shaped storage unit with a lid, which is an example of a blower attachment unit used in the protective clothing for asbestos removal work with a blower attachment unit of the present invention. Examples of the form of the blower attachment unit include a bag-shaped storage unit, a synthetic resin member including an opening, and a U-shaped engagement unit. As shown in FIG. 5A, a blower F is accommodated in a bag-shaped storage unit 3 provided on the inside of the protective clothing for asbestos removal work with a blower attachment unit P. The bag-shaped storage unit 3 is provided with an opening 31 through which the outside air taken in from the ventilation unit 12 passes through the blower F and is introduced into the protective clothing for asbestos removal work with a blower attachment unit P. The filter member 10 is attached to the protective clothing for asbestos removal work with a blower attachment unit P at the joint 11. An adhesive member A2 is provided at an end of the bag-shaped container 3, and an adhesive member A1 is provided on the protective clothing P for asbestos removal work with a blower attachment section.

[0040] Fig. 6 is a schematic side view showing a state in which a blower is accommodated in a bag-shaped accommodation part with a lid, which is an example of a blower attachment part used in the protective clothing for asbestos removal work with a blower attachment part of the present invention, and the lid is then closed. As shown in Fig. 6, the adhesive member A1 and the adhesive member A2 are adhered to each other, so that the blower F can be stably held. Examples of the adhesive member A1 and the adhesive member A2 include hook-and-loop fasteners, zippers, buttons, etc. Among these, hook-and-loop fasteners are preferred from the viewpoint of quickly donning the protective clothing P for asbestos removal work with a blower attachment part.

[0041] Fig. 7 is a schematic diagram showing another example of a blower attachment part used in the protective clothing for asbestos removal work with a blower attachment part of the present invention. As shown in Fig. 7, the blower attachment part 4 includes an outer frame 41 and a synthetic resin member 42. The blower attachment part 4 is approximately the same size as the filter member 10, and is attached and fixed to the inside of the protective clothing for asbestos removal work with a blower attachment part P in the same manner as the bag-type storage part 3. The synthetic resin member 42 is the same size as the outer frame 41 or slightly smaller, and is attached to the outer frame and arranged so as to be located inside the protective clothing for asbestos removal work with a blower attachment part P relative to the outer frame 41 when it is fixed to the protective clothing for asbestos removal work with a blower attachment part P.

[0042] The method for fixing the outer frame 41 to the protective clothing P for asbestos removal work with a blower attachment section is not particularly limited, but it is possible to attach it with, for example, double-sided tape.

[0043] Examples of the material of the synthetic resin member 42 include plastic and rubber. Examples of the plastic include thermoplastic resin. Examples of the thermoplastic resin include polyethylene, polypropylene, and polyethylene terephthalate. The synthetic resin member 42 includes an opening 43, a first engagement portion 44, a second engagement portion 45, a notch portion 46, and a protrusion portion 47a.

[0044] 8A is a schematic diagram showing the procedure for attaching a blower to a blower attachment part of another example of the protective clothing for asbestos removal work with a blower attachment part of the present invention, and FIG. 8B is a schematic diagram showing the state in which the blower is attached. The procedure for attaching the blower F to the blower attachment part 4 will be described below.

[0045] First, the flange portion F1 of the blower F is inserted through the notch 46 until it engages with the first engagement portion 44. Then, the second engagement portion 45 is bent toward the inside of the protective clothing P for asbestos removal work with a blower attachment portion and engaged with the upper portion of the flange portion F1 as shown in Fig. 8(b), thereby fixing the blower F to the blower attachment portion 4.

[0046] Fig. 9 is a schematic diagram showing a modified example of another example of the fan attachment part used in the protective clothing for asbestos removal work with the fan attachment part of the present invention. As shown in Fig. 9, the synthetic resin member 42 is provided with a folding line 47b, and the protrusion 47a is rotatable about the folding line 47b. Depending on the material of the synthetic resin member 42, providing the folding line 47b may make it possible to attach the fan F more smoothly.

[0047] Fig. 10 is a schematic side view showing a state where a blower is attached to the blower attachment part of another example used in the protective clothing for asbestos removal work with a blower attachment part of the present invention. Although not shown in Fig. 10, the protective clothing for asbestos removal work with a blower attachment part P has a filter member 10 attached to the outside of the protective clothing for asbestos removal work with a blower attachment part P, and a blower attachment part 4 is provided on the inside of the protective clothing for asbestos removal work with a blower attachment part P. The blower F is further attached on the inside so that the flange part F1 engages with the synthetic resin member 42. With this configuration, it becomes easy to attach and detach the blower that is used repeatedly many times for the protective clothing for asbestos removal work with a blower attachment part, which must be discarded after the work is completed, and the protective clothing for asbestos removal work with a blower attachment part can be quickly put on.

[0048] Although not shown in the figure, from the standpoint of work continuity and ease of putting on and taking off the protective clothing, it is preferable to provide a power supply attachment section for attaching a power supply section such as a battery on the inside of the asbestos removal work protective clothing P with a blower attachment section. EXAMPLES

[0049] The present invention will be described below with reference to examples, but the present invention is not limited to these examples.

[0050] (Laminated intermediate of filter member) The laminated intermediate of the filter member contains polyacrylonitrile fibers and polyolefin fibers, and filter members or nonwoven fabrics made of a mixture of polyacrylonitrile fibers and polyolefin fibers have been known for some time. For example, Japanese Patent Application Laid-Open No. 7-256024 discloses an air filter material having an electrostatic effect, which is produced by a method of needling the mixture for effect and activating it with heat. In addition, Japanese Patent Application Laid-Open No. 2000-189732 discloses a triboelectrically charged nonwoven fabric prepared as a prefilter by needle-punching polyolefin fibers and acrylic fibers. In addition, Japanese Patent Application Laid-Open No. 2002-249963 discloses an electrically charged nonwoven fabric in which a phosphorus-based additive and a sulfur-based additive are contained in polyolefin fibers.

[0051] <Example> To prepare the filter member, polypropylene fibers and polyacrylonitrile fibers were mixed according to the description of the examples in JP-A-2002-249963, and the mixture was punched into a sheet having a basis weight of 80 g / m by needle punching. 2 Two sheets of this nonwoven fabric were layered to create a fabric with a basis weight of 160 g / m 2 and further, a laminated intermediate body having a basis weight of 25 g / m as an outer layer. 2 and a polypropylene spunbond nonwoven fabric of 20 g / m2 as the inner layer. 2 The resulting sheet was then laminated with a polypropylene spunbond nonwoven fabric of the above-mentioned composition and ultrasonically bonded as shown in FIG. 3 to produce a filter member according to the present invention.

[0052] <Comparative Example 1> Basis weight 20g / m as inner layer 2 Polypropylene spunbond nonwoven fabric, basis weight 25g / m2 as laminate intermediate 2 polypropylene meltblown nonwoven fabric with a basis weight of 25 g / m as the outer layer 2 A polypropylene spunbond nonwoven fabric was laminated to obtain an SMS nonwoven fabric.

[0053] (Breathability test) According to "General nonwoven fabric test method A" specified in JIS L 1913, the breathability test was carried out for Example and Comparative Example 1.

[0054] [Table 1]

[0055] As shown in Table 1, compared with Comparative Example 1, the Example had approximately 3.5 times the breathability, and when used in the outside air introduction section 1, the performance of introducing outside air was extremely high.

[0056] (Pressure loss test) A pressure loss test was carried out on the example in accordance with the "Fine Particle Collection Efficiency Test" specified in JIS T 9001. As a result, the pressure loss value was 10.8 Pa / cm 2 The pressure loss for medical masks and general masks as specified in JIS T 9001 is 60 Pa / cm 2 Since the values ​​are less than 100%, it is understood that the filter member according to the embodiment has a very small pressure loss value and easily introduces outside air.

[0057] (Fine particle collection efficiency test) In accordance with the "Fine Particle Collection Efficiency Test" prescribed in JIS T 9001, a fine particle collection efficiency test was carried out for the examples.

[0058] [Table 2]

[0059] As shown in Table 2, the average value of the fine particle collection efficiency of the embodiment is 99.6%. In the test, polystyrene latex particles with a particle size of 0.1 μm are used, but since asbestos fibers have a minimum width of about 1 μm and a minimum length of 5 μm, it was shown that the filter member 10 of the embodiment hardly allows asbestos fibers to pass through.

[0060] (Requirements for performance as chemical protective clothing) JIS T 8115 is a standard for chemical protective clothing. The protective clothing P for asbestos removal work with a blower attachment part related to the present invention must meet the requirements of airtight clothing for protection against suspended solid dust of type 5. JIS T 8115 states that airtight clothing for protection against suspended solid dust (type 5) must meet the performance requirements of JIS T 8124-1 when tested according to JIS T 8124-2.

[0061] JIS T 8124-1 is a standard for protective clothing against solid dust - Part 1: Performance requirements for airtight clothing for protection against suspended solid dust (Type 5 chemical protective clothing). Materials for airtight clothing for protection against suspended solid dust must be tested for tear strength, puncture resistance, abrasion resistance, and bending strength using the methods specified in JIS T 8115, and must conform to Class 1 of the classification for each characteristic described in JIS T 8115. Therefore, materials that conform to Class 1 were used for protective clothing P for asbestos removal work with a blower attachment.

[0062] Finished airtight suits for protecting against suspended solid dust must be tested for the leakage rate of fine particle aerosols into the suit according to JIS T 8124-2. Specifically, the individual leakage rate (Ljmn, 82 / 90) and the total leakage rate (LS, 8 / 10) must be 30% or less, and the total leakage rate must be 15% or less.

[0063] (Testing the fine particle aerosol leakage rate of protective clothing P for asbestos removal work with a blower attachment) The fine particle aerosol leakage rate test was carried out under the following test conditions. Temperature: 20℃ Humidity: 70%RH Number of testers: 5 people, 2 tests each Fine particle aerosol (NaCl particles): Particle concentration 12±6mg / m 3 Concentration fluctuation range: within ±15% of the average value Particle concentration meter: Flame photometer leak rate tester Model No. 1300 (manufactured by SFP) Temperature and humidity measuring instrument: SEIKO SQ763 Sampling locations: Three preset locations (side of knee, back of waist, right chest) Sampling flow rate: Constant flow rate within 2±0.5L / min Operation: 1. Standing still 2. Walking at 5km / h 3. Flexion and contraction 5 times per minute Operation time: 3 minutes for each sampling position and operation

[0064] [Table 3]

[0065] [Table 4]

[0066] As shown in Table 3, the average total leakage rate of protective clothing P for asbestos removal work with a blower attachment was 9.7%. Also, as shown in Table 4, the individual leakage rate (Ljmn, 82 / 90) of JIS T 8124 was 15.5%, and the total leakage rate (LS, 8 / 10) was 11.0%, which shows that the performance requirements are met. Therefore, protective clothing P for asbestos removal work with a blower attachment can be used without any problems at asbestos removal work sites.

[0067] (Wet bulb globe temperature (WBGT) test when wearing protective clothing for asbestos removal work with a blower attachment) "Preventing Heatstroke in Daily Life, 3rd Edition (2023)" by the Japanese Society of Biometeorology<https: / / seikishou.jp / cms / wp-content / uploads / 008ab7fdbb0b958314827de9a7b8c74c.pdf> As described in the Guidelines, the wet bulb globe temperature (WBGT) is used as an index for preventing heat stroke. In these guidelines, the risk of heat stroke is indicated in four stages according to the WBGT value: "Danger," "High alert," "Alert," and "Caution." Specifically, the risk can be determined using the indoor WBGT simplified estimation chart Ver. 4. In this test, the risk of heat stroke was confirmed using protective clothing for asbestos removal work with a blower attachment part equipped with the filter member used in the present invention and protective clothing for asbestos removal work with a blower attachment part equipped with the filter member of Comparative Example 1.

[0068] [Measurement conditions] Indoor temperature 27.5℃, humidity 65% Blower: FAN2200 (Kuchofuku Co., Ltd.) Wearer: Man in his 40s

[0069] First, after wearing the protective clothing for asbestos removal work with a fan attachment part, the torso part was measured 9 minutes later with the fan turned off. The temperature was 29.1°C and the humidity was 87% for both the clothing using the filter member of the embodiment and the clothing using the filter member of comparison example 1.

[0070] When the fan was then turned on, the temperature and humidity reached 28.6°C and 64% after 5 minutes when the filter member of the embodiment was used, whereas the temperature and humidity reached 28.6°C and 90% after 5 minutes when the filter member of Comparative Example 1 was used.

[0071] When these are applied to the indoor WBGT simplified estimation chart Ver. 4, the comparative example 1 remains at "high alert" while the working example is improved from "high alert" to "alert." Therefore, it is understood that the asbestos removal work protective suit P with a blower attachment part according to the present invention is very effective in preventing heat stroke in workers.

[0072] The embodiments disclosed herein should be considered to be illustrative and not restrictive in all respects. The scope of the present invention is defined by the claims, not the above description, and is intended to include all modifications within the meaning and scope of the claims. [Explanation of symbols]

[0073] 1,100 Outside air intake 2,200 Exhaust section 3. Bag-type storage section 4 Blower mounting part 10 Filter member 11 Joint 12 Ventilation section 31 Opening 41 Outer Frame 42 Synthetic resin parts 43 Opening 44 First engagement portion 45 Second engagement portion 46 Notch 47a Protrusion 47b Folding line A1,A2 Adhesive material F Blower F2 flange part L1 outer layer L2 Laminated intermediate body L3 inner layer P,P1 Protective clothing for asbestos removal work with blower attachment

Claims

1. An outside air intake section provided on both the left and right sides of the front body section; An exhaust section provided in a rear body section above the outside air inlet section; A blower attachment part is provided on the inside of the protective clothing of the outside air introduction part, and a blower is detachably attached to the blower attachment part. The outside air introduction section is made of a material containing polyacrylonitrile fiber and polyolefin fiber and having a basis weight of 150 to 250 g / m ２ and a laminated intermediate body having a basis weight of 15 to 35 g / m2 containing polypropylene fibers. ２ and an inner layer, A protective suit for asbestos removal work with a blower attachment section, comprising fabric having a plastic film layer, except for the outside air intake section, the exhaust section, and the blower attachment section.

2. An outside air intake section provided on both the left and right sides of the rear body section; An exhaust section provided in a front body section above the outside air inlet section; A blower attachment part is provided on the inside of the protective clothing of the outside air introduction part, and a blower is detachably attached to the blower attachment part. The outside air introduction section is made of a material containing polyacrylonitrile fiber and polyolefin fiber and having a basis weight of 150 to 250 g / m ２ and a laminated intermediate body having a basis weight of 15 to 35 g / m2 containing polypropylene fibers. ２ and an inner layer, A protective suit for asbestos removal work with a blower attachment section, comprising fabric having a plastic film layer, except for the outside air intake section, the exhaust section, and the blower attachment section.

3. 3. The protective clothing for asbestos removal work with a blower attachment section according to claim 1, wherein the laminated intermediate body, the outer layer, and the inner layer are bonded together by ultrasonic bonding.

4. 3. The protective suit for asbestos removal work with a blower attachment section according to claim 1 or 2, wherein the exhaust section is an SMS nonwoven fabric or the filter member.

5. 4. The protective clothing for asbestos removal work with a blower attachment section according to claim 3, wherein the exhaust section is an SMS nonwoven fabric or the filter member.

6. 3. The protective clothing for asbestos removal work with a blower attachment section according to claim 1 or 2, wherein the blower attachment section comprises a bag-shaped storage section with a lid.

7. 4. The protective clothing for asbestos removal work with a blower attachment section according to claim 3, wherein the blower attachment section comprises a bag-shaped storage section with a lid.

8. 5. The protective clothing for asbestos removal work with a blower attachment section according to claim 4, wherein the blower attachment section comprises a bag-shaped storage section with a lid.

9. 6. The protective clothing for asbestos removal work with a blower attachment section according to claim 5, wherein the blower attachment section comprises a bag-shaped storage section with a lid.

10. the blower attachment portion includes a synthetic resin member having an opening for attaching the blower, and an outer frame to which the synthetic resin member is attached, 3. Protective clothing for asbestos removal work with a blower attachment portion as described in claim 1 or 2, wherein the opening comprises a substantially U-shaped blower first engagement portion, a blower second engagement portion above the blower first engagement portion, and a cutout portion provided between the blower first engagement portion and the blower second engagement portion.

11. the blower attachment portion includes a synthetic resin member having an opening for attaching the blower, and an outer frame to which the synthetic resin member is attached, The protective clothing for asbestos removal work with a blower attachment portion as described in claim 3, wherein the opening comprises a substantially U-shaped blower first engagement portion, a blower second engagement portion above the blower first engagement portion, and a cutout portion provided between the blower first engagement portion and the blower second engagement portion.

12. the blower attachment portion includes a synthetic resin member having an opening for attaching the blower, and an outer frame to which the synthetic resin member is attached, The protective clothing for asbestos removal work with a blower attachment portion as described in claim 4, wherein the opening comprises a substantially U-shaped blower first engagement portion, a blower second engagement portion above the blower first engagement portion, and a cutout portion provided between the blower first engagement portion and the blower second engagement portion.

13. the blower attachment portion includes a synthetic resin member having an opening for attaching the blower, and an outer frame to which the synthetic resin member is attached, The protective clothing for asbestos removal work with a blower attachment portion as described in claim 5, wherein the opening comprises a substantially U-shaped blower first engagement portion, a blower second engagement portion above the blower first engagement portion, and a cutout portion provided between the blower first engagement portion and the blower second engagement portion.

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