JPH0514996U - Protective clothing - Google Patents

Abstract

(57) [Summary] [Purpose] Providing protective clothing that prevents the penetration of radioactive contaminants and prevents internal stuffiness. [Composition] A protective suit for preventing the permeation of radioactive contaminants, which is made of a resin having a hydrophilic group on the surface of the synthetic fiber layer 1 as a base cloth of the protective suit, and has a moisture permeability of 1000 g / m ² · 2.
Thickness of 4 hours or more and water pressure resistance of 0.5 kg / cm ² or more, thickness 3
A protective suit characterized by using a laminate having a continuous coating film 2 having a thickness of at least μm.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to protective clothing for protecting the human body from radioactive contaminants.

[0002]

[Prior art and its problems]

 In nuclear power plants, protective clothing is worn to prevent gas exposure from radioactive water. Conventional protective clothing is generally made of vinyl acetate resin coated on a base cloth to reduce the generation of harmful gases during incineration. In addition, when wearing this protective clothing, in order to prevent radiation exposure, wear protective clothing such as the mouth of the protective clothing and the area around the hood with tape, and wear gloves and a mask to prevent body exposure. There is. By the way, when wearing protective clothing as described above, the vinyl acetate resin coated on the base cloth of the protective clothing is non-hydrophilic and has poor moisture permeability, so If sweating causes stuffiness, and if you wear protective clothing that causes such stuffiness for a long time and work for a long time, the operator's physical and mental pain will be great, work efficiency will drop, and safety work There is a demand for the development of new protective clothing, including the problem that securing it becomes difficult.

[0003]

[Problems to be solved by the device]

 An object of the present invention is to solve the above-mentioned problems found in conventional protective clothing and to provide a protective clothing that does not cause internal stuffiness and can be worn comfortably.

[0004]

[Means for Solving the Problems]

As a result of earnest studies to solve the above problems, the present inventor can solve the above problems by using a base fabric having a structure in which a continuous coating made of a specific resin is laminated on the surface of a synthetic fiber layer. We found that and completed the present invention. That is, according to the present invention, in the protective clothing for preventing the permeation of radioactive contaminants, the base fabric of the protective clothing is made of a resin having a hydrophilic group on the surface of the synthetic fiber layer, and the moisture permeability is 1,000 g / m 2. There is provided a protective suit characterized by using a laminate having a continuous coating having a thickness of 3 μm or more at a water pressure resistance of 0.5 kg / cm ² or more and ² · 24 hours or more.

The base fabric of the protective clothing of the present invention is a synthetic fiber layer made of a woven fabric formed of polyester fibers, nylon fibers or the like, and one or both sides of which is coated with a resin having a hydrophilic group. To use. Examples of the resin having a hydrophilic group include, for example, a polyurethane-based resin containing 30% or more by weight of an oxyethylene group as a hydrophilic group and a prepolymer thereof, or a polyester-based resin containing 30% or more of an oxyethylene group by a weight ratio thereof. And a prepolymer thereof, or a resin containing a hydrophilic group such as a sulfonic acid group, an amino group, a hydroxyl group, or a carboxyl group in a terminal group or a pendant group (for example, an ion exchange resin having a flexible shape) or the like can be used. It is possible (for example, Japanese Patent Publication No. 60-39014).

FIG. 1 shows a cross-sectional configuration diagram of a base fabric used in the present invention. In this figure, 1 indicates a synthetic fiber layer and 2 indicates a continuous coating layer made of a resin having a hydrophilic group. In the present invention, the moisture permeability (JIS L-1099B method) of the continuous resin coating layer 2 is 1000 g / m ² · 24 hr or more, preferably 5 × 10 ³ to 1 × 10 ⁵ g / m ² · hr, and water pressure (JIS L-1092) to 0.5 kg / cm ² or more, good Mashiku are each defined in 1 to 3 kg / cm ^2. As a result, it is possible to prevent the penetration of radioactively contaminated water and obtain protective clothing that does not cause internal stuffiness. The thickness of the resin coating layer 2 is 3 to 400 μm, preferably 10 to 40 μm. In the synthetic fiber layer 1, the thickness of the fiber is 0.1 to 400 denier, preferably 30 to 210 denier, and the basis weight of the fiber layer is 30 to 300 g / m ² , preferably 60 to It is 150 g / m ² . The synthetic fiber layer 2 is preferably a plain or twill woven fabric.

[0007]

Embodiments Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows an explanatory view of the outerwear of the protective clothing of the present invention, and FIG. 2 shows an explanatory view of its pants. This protective suit is made of 100-denier polyester fiber plain weave (Date: 80 g / m ² 2) is coated with a polyurethane-based hydrophilic moisture-permeable resin, and a continuous coating (thickness: about 25 μm) of the resin is formed on the woven fabric surface. The moisture permeability of this base cloth is 10,000 g / m²・ For 24 hours or more, water pressure resistance is 1.0 kg / cm² As a result of the above adjustments, the overall protective clothing is waterproof and breathable. Further, in the protective garment of the present invention, the seams are sealed by heat-sealing a heat-fusible tape. In this case, as the heat-fusible tape, for example, one having a heat-fusible resin layer such as urethane resin having a melting point of 30 ° C. or more lower than that formed on one surface of a heat-resistant tape such as heat-resistant urethane. Used.

[0008]

[Effect of the device]

The protective garment of the present invention has a continuous coating layer of a resin having a hydrophilic group, and the base cloth is controlled to have a moisture permeability of 10,000 g / m ² · 24 hr or more and a water pressure resistance of 0.5 kg / cm ² or more. Therefore, it has good waterproofness and moisture permeability, prevents permeation of radiation polluted liquid, and prevents internal stuffiness when worn. In addition, the seam of the protective clothing can prevent the permeation of radioactive contaminants through the seam by heat-sealing the heat-sealable tape thereon. As described above, since the protective suit of the present invention does not cause internal stuffiness, it can be comfortably worn unlike the conventional case, and its efficiency does not decrease even during long-time work.

[Brief description of drawings]

FIG. 1 is a cross-sectional configuration diagram of a protective clothing base fabric of the present invention.

FIG. 2 is an explanatory view of the outerwear of the protective clothing of the present invention.

FIG. 3 is an explanatory view of the protective clothing pants of the present invention.

[Explanation of symbols]

 1 synthetic fiber layer 2 continuous resin coating layer

Claims (1)

[Scope of utility model registration request] 1. A protective suit for preventing the permeation of radioactive contaminants, wherein the protective suit is made of a resin having a hydrophilic group on the surface of a synthetic fiber layer as a base cloth, and a water vapor transmission rate of 1000 g / m ² ·.
A protective suit characterized by using a laminate having a continuous coating of 24 μm or more and a water pressure resistance of 0.5 kg / cm ² or more and a thickness of 3 μm or more.