JPH07106716B2 - Immediate wear type cold and water resistant clothing - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an instant wear type cold and water resistant garment which exhibits particularly excellent effects when an accident or disaster such as sea accidents is encountered in cold weather.

[0002]

2. Description of the Related Art In cold water where the temperature of seawater is near 0 ° C., in preparation for a marine accident of a ship, a fall of the sea during marine work, or a landing accident due to an airplane failure, encounter or rescue , Cold and water resistant clothing is used. However, the conventional cold and water resistant clothing tends to be bulky with a large thickness as a result of the importance placed on the waterproofness and heat retention of the material. Therefore, there are problems that it is difficult to wear quickly in an accident, escape from the sea at the time of an accident, and poor mobility in rescue work.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object thereof is to provide a cold and water resistant clothing which is excellent in immediate wearability and mobility.

[0004]

An immediate wear type cold and water resistant garment according to the present invention comprises an outer layer material composed of a single layer or multiple layers having waterproofness and flame retardancy, and a cloth having a small surface friction resistance on the human body side. A non-woven fiber layer and an inner layer material having a thickness of 9 to 40 mm in which the same or different foamed resin sheets as described above are sequentially arranged outside the laminated foamed resin sheets ,
Maintaining the thickness of the foamed resin sheet when compressed by 50 g / cm ²
The rate is 50% or more .

[0005]

In the immediate wear type cold and water resistant clothing according to the present invention, since the outer layer material is waterproof and flame retardant, even if water enters at the time of an accident, water does not penetrate into the clothes and a fire occurs. Even if you do, you can protect yourself from the fire. In addition, since the inner layer material has a three-layer structure of a foamed resin sheet and a non-woven fiber layer, it is necessary to maintain a sufficient air layer even if it floats for a long time in seawater in the cold season and some water pressure is applied. Can
The body temperature can be maintained. Furthermore, since the surface of the inner layer material facing the human body is made of a cloth having a small frictional resistance, it is excellent in immediate wearability, and since the entire garment is rich in flexibility, it is excellent in motility.

FIG. 1 shows a sectional view of the outer layer material A and the inner layer material B constituting the present invention.

The outer layer A may be waterproof and flame-retardant. Water resistance is 200 gf / cm ² or more in accordance with JIS L-1092A method, and flame resistance is JIS K-702.
The oxygen index in Method 1 is preferably 26 or more.
Further, the outer layer material A may be a single layer or may be one in which the film 2 is laminated on the inside of the base material 1, but a material having a thickness of 0.3 to 3 mm is used.

As a non-limiting example of the outer layer material satisfying the above conditions, a flame-retardant woven fabric having a polyurethane wet coating, a polyurethane-acrylic wet coating, or the like, or a tetrafluoroethylene film as the waterproof film 2 or Examples thereof include flame-retardant woven fabric laminated or adhered with a polyurethane film or the like. As the flame-retardant woven fabric, the material itself is flame-retardant, such as aramid fiber, polyamide-imide fiber, phenol formaldehyde fiber, polycranol fiber, modacrylic fiber, flame-retardant polynosic fiber, etc., alone or mixed or woven fabric, and further cotton, wool. Examples include those obtained by subjecting a woven fabric made of natural fibers such as, for example, to a flame-retardant treatment, or a mixture of a fiber having a flame-retardant property of the material itself and a natural fiber or a woven fabric subjected to a flame-retardant treatment. . The outer layer material may be subjected to a water repellent treatment for the purpose of further enhancing the waterproof function.

The inner layer material B has a three-layer structure in which a foamed resin sheet 3, a non-woven fiber layer 4 and a foamed resin sheet 5 are laminated in this order and has a thickness of 9 to 40 mm. In order to fulfill the function, considering that the water resistant clothing of the present invention is used particularly in cold regions, the thermal resistance value is 0.24 ° C m ² hr / kcal or more (when sewn on clothes, the thermal resistance of the air layer is It should be 0.30 ℃ m ² hr / kcal or more), so that it does not impair motility. Therefore, the thickness is 9 than of less than mm can not be obtained thermal resistance value of interest, since the the motion hinder exceeds 40 mm, it is desired that a 9 ～40Mm. The foamed resin sheets 3 and 5 have an air content of 80% or more and a thickness retention of 50 g / cm ² when compressed under a load of 50.
% Or more, and it is desirable that the surface having a thickness of 3 mm or more and having contact with the non-woven fiber has irregularities. Such a foamed resin sheet may be manufactured so that open cells are formed or closed cells are formed. It is preferable to adopt a method in which a large number of As the resin, for example, polyurethane, polyethylene, polyvinyl chloride or the like can be used from the viewpoint of ease of production, flexibility after being formed into a sheet, and retainability of thickness when compressed.

The non-woven fiber layer 4 preferably has a basis weight of 60 g / m ² or more and a thickness of 3 mm or more, and is formed as a short fiber non-woven fabric or a spun bond. As such fibers, for example, natural fibers such as cotton and wool, regenerated fibrous fibers such as viscose rayon, copper coconut silk, acetate and synthetic fibers such as polyester, polyolefin, polyamide and acrylonitrile can be used. In order to exert high heat retention, it is preferable to use fibers having a small fiber diameter, and sheath-core type fibers or side-by-side type fibers may be used. Since the non-woven fiber layer is sandwiched between the foamed resin sheets having irregularities on the surface, even when the garment receives pressure, it only receives high pressure locally and can maintain a certain thickness. The heat retaining property is effectively exhibited. Moreover, since the non-woven fiber layer is inserted between the foamed resin coats, the mobility is better than that of a single layer structure having the same thickness.

Further, a cloth 6 having a small surface friction resistance is laminated on the inner layer material for the purpose of giving the clothes immediate wearability. For the cloth, taffeta or tricot made of synthetic fiber filament yarn can be adopted, and one having a surface friction coefficient of 0.6 or less is preferable. As a method of laminating, a method that does not impair flexibility, for example, a method of heat-pressing and bonding using a non-woven hot-melt adhesive in which a hot-melt adhesive resin is thinly and densely arranged to form a non-woven fabric, or a resin It is preferable to employ a method in which a hot-melt resin that has been melted is applied in dots in a dot form on the adhesive surface of either the sheet or the fabric, and then the layers are superposed and heated and pressure-bonded. The method of measuring the surface friction resistance is as follows.

(Surface friction resistance measuring method) 5 on the sample measuring surface
Place a friction cloth (cotton knitted fabric: 30th milling cutter, vertical 4 cm x width 1 cm) on which a load of 0 g is applied, and measure the load required for pulling the friction cloth in the vertical direction at a pulling speed of 20 mm / min. To do.

Surface friction coefficient = (load due to friction) / [load applied to friction cloth (50 g)]

For the purpose of maintaining waterproofness when sewing the cold and water resistant clothing of the present invention, the outer layer material and the inner layer material are sewn individually and then superposed and integrated as shown in FIG. To wear clothes. The seams of the outer layer material must be sealed with waterproof tape or the like.

[0015]

【Example】

Example 1 The outer layer material was 25% aramid fiber and 7 flame-retardant cotton.
A waterproof polyurethane film is adhered to a woven fabric composed of 5% with an adhesive to make a thickness of 1.2 mm,
The inner layer material is a continuous foamed polyurethane resin sheet (thickness 5
mm, air content 95%, thickness retention 70% under compression of 50 g / cm ² ) with nylon tricot (thickness 1.0 mm, surface friction coefficient 0.34) bonded via a non-woven hot melt adhesive. As the innermost layer, a polyester staple non-woven fabric (thickness 6 mm, air content 99%, thickness retention rate 40% under load compression of 50 g / cm ² ) and polyurethane resin sheet (same as the polyurethane resin sheet) are shown in FIG. It laminated | stacked and was produced. The outer layer material and the inner layer material were sewn individually and then overlaid to prepare a cold and water resistant clothing as shown in FIG.

Comparative Example 1 Polyester table nonwoven fabric as the inner layer material (thickness 18 mm, air content 99%, thickness retention 40% when compressed under load of 50 g / cm ² )
Nylon tricot (thickness 1.0mm, surface friction coefficient 0.3
A cold / water resistant garment was produced in accordance with Example 1 except that the product sandwiched between 4) and quilted was used.

Comparative Example 2 Polyester table nonwoven fabric as the inner layer material (thickness 45 mm, air content 99%, thickness retention 40% when compressed under load of 50 g / cm ² )
Nylon tricot (thickness 1.0mm, surface friction coefficient 0.3
A cold / water resistant garment was produced in accordance with Example 1 except that the product sandwiched between 4) and quilted was used.

The thermal resistance values of the cold and water resistant clothing of Examples and Comparative Examples were measured under the following conditions to evaluate the immediate wearability and swimability. The results of each are shown in Table 1.

(Thermal resistance value) Assuming floating at sea, a water tank with a water temperature of 0 ° C is provided in an artificial weather chamber with an outside temperature of -15 ° C, and a thermal mannequin with cold and water resistant clothes is placed under the water 5
It was immersed in 0 cm for measurement.

[0020]

[Table 1]

As shown in Table 1, Comparative Example 1 uses a polyester staple non-woven fabric as the inner layer material, so that it has a smaller thermal resistance value than the Examples, although it is bulkier. Comparative Example 2 is too bulky and has an excellent thermal resistance value, but is inferior in immediate wearability and swimming ability. On the other hand, Example 1
Has excellent heat resistance, immediate wearability and swimming ability. In addition, JIS L-1092A of Examples and Comparative Examples
The water resistance in the method was 1000 gf / cm ² or more, and the flame retardancy was 27 in the JIS K-7021 method.

[0022]

The present invention is configured as described above,
Provide immediate wearable cold and water resistant clothing that can be worn immediately in an emergency, has excellent mobility such as swimming and has excellent heat retention properties even when entering water, and has a high life preservation rate in the event of a marine accident. Became possible.

[Brief description of drawings]

FIG. 1 is a schematic sectional view of a garment of the present invention.

FIG. 2 is a diagram showing an example of sewing clothes of the present invention.

[Explanation of symbols]

 A outer layer material B inner layer material 1 flame-retardant woven fabric 2 waterproof film 3 foamed resin sheet 4 nonwoven sheet 5 foamed resin sheet 6 cloth

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Takumi Minagawa 2-1-1 Katata, Otsu-shi, Shiga Toyobo Co., Ltd. Research Institute (72) Inventor Kazuyoshi Tsuchida 2-1-1 Katata, Otsu, Shiga Toyobo Co., Ltd., Research Institute (56) References: Actual Development Sho 61-94522 (JP, U)

Claims (1)

[Claims] 1. A and an outer layer material made of a single layer or multiple layers having a waterproof and flame retardancy, and nonwoven fibrous layer and the outside of the foamed resin sheet is less fabric of the surface frictional resistance to the human body side is laminated Same or different
9 to 40 mm thick with the foamed resin sheets arranged in sequence
Of which is constituted by an inner layer material, the foamed resin sheet of 50 g / cm ² Thickness retention during load compression
Immediate wear type cold and water resistant clothing characterized by a rate of 50% or more .