KR20240069423A - Multi-layered protective clothing having excellent fire protection, flame resistance and heat resistance - Google Patents

Abstract

The present invention relates to protective clothing with a multi-layer structure having excellent fire protection, flame retardancy and heat resistance, and more specifically, comprising an inner shell and two first outer shells and a second outer shell, between the inner shell and the first outer shell and between the first outer shell and the first outer shell and the second outer shell. It is composed of a multi-layered structure with first and second air layers formed between the second outer skin, respectively, and by applying fibers with excellent flame retardancy to the inner skin and one or more of the two outer skins, it has excellent fire prevention, flame retardancy and heat resistance, so it has excellent fire resistance and flame resistance. There is an advantage that it can be usefully applied in work environments where this occurs.

Description

Multi-layered protective clothing having excellent fire protection, flame resistance and heat resistance}

The present invention relates to materials and protective clothing with a multi-layer structure having excellent fire prevention, flame resistance, and heat resistance.

Workers who do welding work or work in a furnace at a steel mill wear heat-resistant clothing such as heat-resistant tops, heat-resistant bottoms, heat-resistant gloves, and heat-radiating hoods to protect their bodies from high-temperature flames and block high-temperature radiant heat. In particular, a lot of research is being done on safe clothing that has excellent fire protection and heat resistance even in high heat and flames, but nothing is yet known about materials and protective clothing with improved fire protection, flame resistance, heat resistance, and wearing comfort.

Therefore, there is a need for research and development on new protective clothing that can provide excellent fire protection, flame retardancy, and heat resistance at the same time, suitable for existing work environments with high heat and flames.

Korean Patent No. 10-1104092

In order to solve the above problems, the purpose of the present invention is to provide protective clothing with a multi-layer structure that is excellent in fire prevention, flame resistance, and heat resistance.

The present invention relates to endothelium; A first shell located on one surface of the endothelium; And a second shell located on the first shell, wherein the first shell and the second shell are jacquard knitted integrally to form a plurality of patterns. A multi-layer protective clothing with excellent fire resistance, flame resistance, and heat resistance. provides.

The inner skin may be one or more selected from the group consisting of aramid fibers, rayon fibers, modacrylic fibers, and cotton fibers.

It may further include a first air layer formed between the inner skin and the first outer skin, and the edge portions of the inner skin and the first outer skin may have a structure in which the inner skin and the first outer skin are joined by fusion or sewing.

It further includes a second air layer formed inside the pattern, and the pattern may have any one of a diamond shape, a square shape, a hexagon shape, and an octagon shape.

The materials of the first shell and the second shell may be the same or different from each other, and may each independently be one or more selected from the group consisting of aramid fibers, rayon fibers, modacrylic fibers, and cotton fibers.

The inner skin may have a thickness of 0.1 to 5 mm, and the first and second outer skins may each have a thickness of 0.1 to 10 mm.

The multi-layered protective clothing may be one or more types selected from the group consisting of hoods, gloves, socks, neck warmers, welding clothing, work clothing, heat radiation clothing, protective clothing, anti-static clothing, and fire fighting clothing.

The inner skin is made of mixed fibers containing 49 to 52% by weight of aramid fibers and 48 to 51% by weight of rayon fibers, and further includes a first air layer formed between the inner skin and the first outer skin, and the inner skin and the first outer skin. The edge portion of the pattern is made of a sewn-joint structure, and further includes a second air layer formed inside the pattern, wherein the pattern has a diamond shape, and the thickness of the first air layer is thicker than the second air layer. The materials of the first shell and the second shell are the same and are each made of mixed fibers containing 49 to 52% by weight of aramid fibers and 48 to 51% by weight of rayon fibers, and the inner shell has a thickness of 0.7 to 0.7%. 2 mm, and the first and second shells may each have a thickness of 0.9 to 5 mm.

The multi-layered protective clothing of the present invention includes an inner shell and two first and second outer shells, and first and second air layers are formed between the inner and first outer shells and between the first and second outer shells, respectively. It has a multi-layer structure, and by applying fibers with excellent flame retardancy to the inner skin and one or more of the two outer skins, it has excellent fire prevention, flame resistance, and heat resistance, so it has the advantage of being useful even in work environments where high heat and flames occur.

The effects of the present invention are not limited to the effects mentioned above. The effects of the present invention should be understood to include all effects that can be inferred from the following description.

Figure 1 is a cross-sectional view of protective clothing 60 made of a multi-layer structure according to an embodiment of the present invention.
Figure 2 shows the results of testing the fiber mixing ratio of fiber materials for existing sewing clothes.
Figure 3 shows the results of testing the fiber mixing ratio of the jacquard knitted first shell 20 and second shell 40 materials of the protective clothing 60 having a multi-layer structure according to an embodiment of the present invention.
Figure 4 shows the results of a flame heat protection performance test for fiber materials for existing sewn clothing.
Figure 5 shows the flame heat protection performance test results for the jacquard knitted first shell 20 and second shell 40 materials of the multi-layer protective clothing 60 according to an embodiment of the present invention. It is shown.
Figure 6 is a cross-sectional photograph of the inner skin 10 of a fire-retardant, flame-retardant and heat-resistant hood 60 according to an embodiment of the present invention.
Figure 7 is a cross-sectional photograph of the first shell 20 knitted with jacquard knitting 41 according to an embodiment of the present invention.
Figure 8 is a cross-sectional photograph of the second skin 40 with jacquard knitting 41 according to an embodiment of the present invention.
Figure 9 is a photograph of a fire-resistant, flame-retardant and heat-resistant hood with a multi-layer structure according to an embodiment of the present invention.

Hereinafter, the present invention will be described in more detail by way of example.

The present invention relates to materials and protective clothing with a multi-layer structure having excellent fire prevention, flame resistance, and heat resistance.

As explained earlier, research and development on safe fire-retardant materials with the ability to block heat is needed to protect workers from working environments where high heat and flames occur.

Accordingly, in the present invention, it has a multi-layered structure comprising an inner skin and two first and second outer skins, with first and second air layers formed between the inner skin and the first outer skin and between the first and second outer skins, respectively. , by manufacturing protective clothing by applying fibers with excellent heat resistance to one or more of the inner skin and the two outer skins, there is an advantage that it has excellent heat resistance and can be usefully applied even in a work environment where high heat and flames occur.

Specifically, the present invention is an endothelium (10); A first outer skin (20) located on one surface of the inner skin (10); And the first shell (20); A multi-layered protective clothing comprising a second shell 40 located on the top, wherein the first shell 20 and the second shell 40 are integrally jacquard knitted 41 to form a plurality of patterns. (60) is provided.

The endothelium 10 may be one or more selected from the group consisting of aramid fibers, rayon fibers, modacrylic fibers, and cotton fibers, and may preferably be aramid fibers, rayon fibers, or a mixture of these fibers, and most preferably It may be a mixed fiber of aramid fiber and rayon fiber. The rayon fiber may be flame retardant rayon or viscose rayon, and the cotton fiber may be flame retardant treated cotton fiber.

The mixed fiber may include 45 to 55% by weight of aramid fibers and 45 to 55% by weight of rayon fibers, and preferably may include 49 to 52% by weight of aramid fibers and 48 to 51% by weight of rayon fibers.

In particular, the aramid fiber has good tensile strength and elongation, so it has excellent flexibility, and also has excellent heat resistance and durability, so it can be widely used throughout the industry, such as leisure goods. In addition, the aramid fiber is woven in a mesh form, which has the advantage of reducing production costs and reducing volume and weight, thereby improving convenience in use.

It further includes a first air layer 30 formed between the inner skin 10 and the first outer skin 20, and the edge portion 21 of the inner skin 10 and the first outer skin 20 is joined by fusion or sewing. It may be composed of a structured structure.

The pattern further includes a second air layer 50 formed inside the pattern, and the pattern further includes a second air layer 50 formed inside the pattern, and the pattern can be formed in various sizes and polygons of various shapes, such as a honeycomb shape. Specific examples include diamond, square, hexagon, and octagon, but are not limited thereto. Preferably, the pattern may be diamond-shaped, square or hexagonal in shape, and most preferably may be diamond-shaped in shape.

The first air layer 30 and the second air layer 50 trap air between the fibers of the inner skin 10 and the outer skin to prevent heat from passing through, so they have the advantage of good elasticity and light weight. In addition, the first air layer 30 and the second air layer 50 are especially formed in a double structure, so the thermal conductivity is very low, and the first air layer 30 and the second air layer 50 are similar to other tissues of the same weight. It can have superior heat resistance performance than knitted fabrics.

However, when only one of the first air layer 30 and the second air layer 50 is formed, the heat resistance inside the fiber may rapidly decrease.

The first air layer 30 and the second air layer 50 may each have the same or different thickness, and preferably, the thickness of the first air layer 30 is greater than the thickness of the second air layer 50. It could be thicker. This means that when the thickness of the first air layer 30 is thicker than the second air layer 50, heat movement between the inner skin 10 and the first outer skin 20 can be more effectively blocked, and the skin and scalp You can maximize the wearing comfort of the hood by increasing the internal elasticity of the contact.

The first shell 20 and the second shell 40 may be integrated into a jacquard knit 41 by forming a pattern. At this time, the jacquard knitting 41 forms a base weave in which a plurality of warp and weft threads rise and fall one by one, and when a pattern is desired to be displayed, the warp is knitted to the weft by skipping several strands of the weft, allowing the skipped warp to express the pattern. This refers to a method of knitting in various patterns. In the present invention, the first shell 20 and the second shell 40 can be integrated into a jacquard knit 41 to improve the durability of the shell and provide elasticity. Additionally, by forming a plurality of patterns, it is possible to prevent wrinkles or wrinkles from occurring in the outer shell fabric.

The first shell 20 and the second shell 40 may be made of a fiber material with excellent fire resistance and heat resistance. Specifically, the materials of the first shell 20 and the second shell 40 are the same or different from each other. And, each may be independently one or more selected from the group consisting of aramid fibers, rayon fibers, modacrylic fibers, and cotton fibers.

Preferably, the materials of the first shell 20 and the second shell 40 are the same as each other, and may each independently be aramid fiber, rayon fiber, or a mixed fiber thereof, and most preferably are the same as each other, and each Independently, it may be a mixed fiber of aramid fiber and rayon fiber. In particular, when the first shell 20 and the second shell 40 are each made of aramid fibers with excellent fire resistance and heat resistance, they have excellent heat resistance and can be used even in working environments where high heat and flames occur.

The mixed fiber may include 45 to 55% by weight of aramid fibers and 45 to 55% by weight of rayon fibers, and preferably may include 49 to 52% by weight of aramid fibers and 48 to 51% by weight of rayon fibers. At this time, if the content of the aramid fiber is less than 49% by weight, the tensile strength and elongation are not good, which may reduce flexibility and durability, and on the contrary, if it is more than 52% by weight, the weight of the protective clothing increases, leading to problems of poor fit and uncomfortable movement. there is.

The inner skin 10, the first outer skin 20, and the second outer skin 40 may each have the same or different thicknesses. Specifically, the endothelium 10 may have a thickness of 0.1 to 5 mm, preferably 0.5 to 3 mm, and most preferably 0.7 to 2 mm. Additionally, the first shell 20 and the second shell 40 may each have a thickness of 0.1 to 10 mm, preferably 0.5 to 7 mm, and most preferably 0.9 to 5 mm.

At this time, if the inner skin 10, the first outer skin 20, and the second outer skin 40 do not satisfy any one of the above thickness ranges, the durability of the fabric is poor or the elasticity and flexibility are poor, making it uncomfortable to wear and being heavy. Because it is heavy, user satisfaction may decrease.

The multi-layered protective clothing may be one or more types selected from the group consisting of hoods, gloves, socks, neck warmers, welding clothing, work clothing, heat radiation clothing, protective clothing, anti-static clothing, and fire fighting clothing, but is not limited thereto. Preferably, the protective clothing may be a hood with excellent fire prevention, flame resistance, and heat resistance.

In particular, although not explicitly described in the following Examples or Comparative Examples, in the multi-layered protective clothing 60 according to the present invention, the protective clothing 60 formed by varying the following seven conditions can be used to Moisture resistance, elasticity, quick-drying, and wearing comfort were evaluated by the method.

As a result, unlike other conditions and other numerical ranges, when all of the following conditions were satisfied, the sweat and moisture of the worker was quickly dried when wearing protective clothing in various working environment conditions where high heat and flames were generated, and the moisture resistance was excellent. It was confirmed that the elasticity was good, making it comfortable to wear and providing a sense of stability.

① The inner skin is made of mixed fibers containing 49 to 52% by weight of aramid fibers and 48 to 51% by weight of rayon fibers, ② It further includes a first air layer formed between the inner skin and the first outer skin, and the inner skin and the first outer skin. 1 The edge portion of the outer skin is made of a sewn-joint structure, ③ further includes a second air layer formed inside the pattern, the pattern has a diamond shape, ④ the thickness of the first air layer is greater than the second air layer It is made of a thicker thickness, ⑤ the materials of the first shell and the second shell are the same, and are made of mixed fibers containing 49 to 52% by weight of aramid fibers and 48 to 51% by weight of rayon fibers, respectively, and ⑥ the above The inner skin may have a thickness of 0.7 to 2 mm, and ⑦ the first and second skins may each have a thickness of 0.9 to 5 mm.

However, if any of the seven conditions above are not met, the sweat and moisture of the worker are not sufficiently dried when wearing protective clothing in various working environment conditions where high heat and flames occur, so it is damp and has poor moisture resistance and elasticity. As a result, the wearing comfort of protective clothing was significantly reduced. In addition, due to poor moisture resistance, discoloration occurred in the inner skin material and durability deteriorated.

Hereinafter, the present invention will be described in more detail based on examples, but the present invention is not limited to the following examples.

Figure 1 is a cross-sectional view of protective clothing 60 made of a multi-layer structure according to an embodiment of the present invention. Referring to FIG. 1, the endothelium 10 is located at the bottom, the first shell 20 is located on one surface of the endothelium 10 and the edge portion 21 is coupled, and the endothelium 10 ) and the first outer shell 20 shows that the first air layer 30 is formed. In addition, the second shell 40 is positioned on the first shell 20, and is jacquard knitted 41 to form a plurality of certain patterns. At this time, a structure in which a second air layer 50 is formed is shown between the patterns.

Figure 2 shows the results of testing the fiber mixing ratio of fiber materials for existing sewing clothes. Referring to Figure 2, it was confirmed that the fabric material was a mixed fiber containing 49.6% by weight of aramid fiber and 50.4% by weight of rayon fiber.

Figure 3 shows the results of testing the fiber mixing ratio of the jacquard knitted first shell 20 and second shell 40 materials of the protective clothing 60 having a multi-layer structure according to an embodiment of the present invention. Referring to FIG. 3, it was confirmed that the first shell 20 and the second shell 40 were mixed fibers containing 50.6% by weight of aramid fibers and 49.4% by weight of rayon fibers.

Figure 4 shows the results of a flame heat protection performance test for fiber materials for existing sewing clothing.

Figure 5 shows the flame heat protection performance test results for the jacquard knitted first shell 20 and second shell 40 materials of the multi-layer protective clothing 60 according to an embodiment of the present invention. It is shown.

Referring to the results of FIGS. 4 and 5, it can be seen that the fiber material of the protective clothing 60 has lower thermal conductivity in flame heat protection performance compared to the fiber material of existing sewing clothing, and thus has excellent fire prevention and flame retardant performance. there was. In addition, it was confirmed that two air layers were formed to block heat passage, improving heat resistance.

Figure 6 is a cross-sectional photograph of the inner skin 10 of a fire-retardant, flame-retardant and heat-resistant hood according to an embodiment of the present invention. Referring to FIG. 6, in the cross section of the inner skin 10, the edge portion 21 is sewn and joined to the first outer skin 20, and the cross section of the inner skin 10 shows that it is made of a soft material. .

Figure 7 is a cross-sectional photograph of the first shell 20 knitted with jacquard knitting 41 according to an embodiment of the present invention.

Figure 8 is a cross-sectional photograph of the second skin 40 with jacquard knitting 41 according to an embodiment of the present invention.

Referring to FIGS. 7 and 8, the first shell 20 and the second shell 40 are shown to be jacquard knitted 41 integrally to form a plurality of diamond-shaped patterns. At this time, a second air layer 50 is formed inside the plurality of patterns, thereby blocking heat that may flow in from the outside, thereby significantly improving heat resistance.

Figure 9 is a photograph of a fire-retardant, flame-retardant, and heat-resistant hood with a multi-layer structure according to an embodiment of the present invention. Referring to FIG. 9, the second shell 40 in contact with the outside of the hood is shown to be jacquard knitted 41 by forming a plurality of patterns together with the first shell 20. The hood is shown to be made so that when the head is inserted and covered through an insertion portion formed at the bottom, the face portion located on the side is accurately positioned on the face of the human body, thereby protecting the head and neck, etc., excluding the face.

10: Endothelium
20: first shell
21: Edge between inner skin and first outer skin
30: first air layer
40: second shell
41: Jacquard knitting
50: second air layer
60: Protective clothing

Claims (8)

endothelial;
A first shell located on one surface of the endothelium; and
It includes a second shell located on the first shell,
The first shell and the second shell are jacquard knitted integrally to form a plurality of patterns. A material and protective clothing with a multi-layer structure having excellent fire prevention, flame resistance, and heat resistance.
According to paragraph 1,
The inner layer is a multi-layered material and protective clothing with excellent fire prevention, flame resistance and heat resistance, wherein the lining is at least one selected from the group consisting of aramid fiber, rayon fiber, modacrylic fiber and cotton fiber.
According to paragraph 1,
It further includes a first air layer formed between the inner skin and the first outer skin, and the edge portions of the inner skin and the first outer skin are fused or sewn together to form a multi-layer structure material and protection excellent in fire prevention, flame resistance, and heat resistance. clothes.
According to paragraph 1,
A material and protective clothing with a multi-layer structure having excellent fire prevention, flame resistance, and heat resistance, further comprising a second air layer formed inside the pattern, wherein the pattern has any one of a diamond shape, a square shape, a hexagon shape, and an octagon shape.
According to paragraph 1,
The materials of the first shell and the second shell are the same or different from each other, and are each independently at least one selected from the group consisting of aramid fibers, rayon fibers, modacrylic fibers, and cotton fibers. A multi-layer excellent in fire prevention, flame resistance, and heat resistance. Structural materials and protective clothing.
According to paragraph 1,
The inner shell has a thickness of 0.1 to 5 mm, and the first and second shells each have a thickness of 0.1 to 10 mm.
According to paragraph 1,
The protective clothing is a multi-layered material with excellent fire prevention, flame resistance, and heat resistance, and is at least one selected from the group consisting of hoods, gloves, socks, neck warmers, welding clothes, work clothes, heat insulating clothes, protective clothes, anti-static clothing, and fire fighting clothes, and Protective clothing.
According to paragraph 1,
The lining is made of mixed fibers containing 49 to 52% by weight of aramid fibers and 48 to 51% by weight of rayon fibers,
It further includes a first air layer formed between the inner skin and the first outer skin, and the edge portions of the inner skin and the first outer skin are formed by sewing and joining,
Further comprising a second air layer formed inside the pattern, wherein the pattern has a diamond shape,
The thickness of the first air layer is thicker than the second air layer,
The materials of the first shell and the second shell are the same and are each made of mixed fibers containing 49 to 52% by weight of aramid fibers and 48 to 51% by weight of rayon fibers,
The endothelium has a thickness of 0.7 to 2 mm,
The first shell and the second shell each have a thickness of 0.9 to 5 mm. A material and protective clothing with a multi-layer structure having excellent fire prevention, flame resistance, and heat resistance.