Tear-resistant fireproof clothing outer layer fabric and weaving method thereof

Abstract

The present invention relates to a tear-resistant fireproof clothing outer fabric and a weaving method thereof, which sequentially comprises an inner layer, a tear-resistant layer, a heat-insulating fireproof layer and a waterproof outer layer; the tear-resistant layer comprises a plurality of first braided wires arranged in parallel, each of the first braided wires is linearly distributed with a plurality of winding units, and the winding unit is composed of a first winding sheet and a second winding sheet symmetrical on both sides thereof. The present invention forms a first winding sheet and a second winding sheet by winding on a first braided wire, uses the first braided wire after winding as a weft, and uses the second braided wire as a warp, sequentially connects the first winding sheet and the second winding sheet located in the same straight line direction through a plurality of second braided wires, and then obtains a tear-resistant net after hot pressing and shaping treatment, so that the outer fabric of the fireproof clothing produced has good tear resistance while still maintaining good air permeability and elasticity.

Description

Technical Field

[0001] The invention belongs to the technical field of outer layer fabrics of fireproof clothing, and particularly relates to a tear-resistant outer layer fabric of fireproof clothing and a weaving method thereof. Background Art

[0002] Fire retardant clothing is a special clothing, which requires that the outer fabric of the fire retardant clothing should be a fabric that integrates multiple properties such as waterproofness, flame retardancy, heat insulation, and tear resistance. Among them, tear resistance is also a more important indicator. The outer fabric of the fire retardant clothing with strong tear resistance is not easily damaged during work use and can provide good protection for the human body.

[0003] However, the outer fabric of the fireproof clothing in the prior art has good tear resistance, but it is difficult to have good elasticity and breathability at the same time. Therefore, it is necessary to invent a tear-resistant outer fabric of the fireproof clothing and a weaving method thereof to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to provide a tear-resistant fireproof clothing outer fabric and a weaving method thereof in order to solve the above-mentioned problems, aiming to solve the problem that the existing fireproof clothing outer fabric has good tear resistance but is difficult to have good elasticity and breathability at the same time.

[0005] The present invention achieves the above-mentioned purpose through the following technical solutions:

[0006] An outer layer fabric of a tear-resistant fireproof clothing, comprising an inner layer, an anti-tear layer, a heat-insulating fireproof layer and a waterproof outer layer in sequence;

[0007] The tear-resistant layer comprises a plurality of first braided wires arranged in parallel, each of the first braided wires is linearly distributed with a plurality of winding units, the winding unit is composed of a first winding sheet and a second winding sheet symmetrical on both sides thereof, and the first winding sheets and the second winding sheets on adjacent first braided wires and located in the same straight line are respectively connected by the second braided wires;

[0008] The outer surface of the anti-tear layer is evenly coated with a flame retardant coating adhesive to form a reinforcement layer on the outer surface of the anti-tear layer.

[0009] As a further optimization scheme of the present invention, the first winding sheet is changed from a spherical shape to a disc shape after being hot-pressed, and the second winding sheet is changed from a teardrop shape to a fan shape after being hot-pressed.

[0010] As a further optimization solution of the present invention, the narrow end of the fan-shaped second winding sheet is connected to the first winding sheet.

[0011] A method for weaving an outer layer fabric of a tear-resistant fireproof clothing, the specific steps are as follows:

[0012] Step 1: Using aramid flame retardant fiber, polyester flame retardant fiber and cotton fiber as textile raw materials to weave a first braided wire, a second braided wire and a winding wire used for winding to form a first winding sheet and a second winding sheet for standby use;

[0013] Step 2: Winding the first braided wire to form a spherical first winding piece, and symmetrically winding the first winding piece along the weft direction of the first winding piece on both sides of the first winding piece with the first winding piece as the center to form a water drop-shaped second winding piece, repeating the above steps to process the first braided wire to obtain the weft wire;

[0014] Step 3: Weaving with the second braided wire as the warp and the weft obtained in step 2, the second winding sheet and the first winding sheet in the same straight line direction are sequentially connected by the same second braided wire, so as to obtain a tear-resistant mesh. After the tear-resistant mesh is hot-pressed and formed, the spherical first winding sheet is pressed into a disc shape, and the tear-drop-shaped second winding sheet is pressed into a fan shape, so as to obtain a tear-resistant layer;

[0015] Step 4: The flame retardant coating glue is evenly coated on the surface of the tear-resistant mesh and cured to obtain a reinforcement layer;

[0016] Step 5: Lay the non-woven fabric, the fabric prepared in step 4, the heat-insulating fireproof fabric and the waterproof fabric in sequence, perform heat-pressing and bonding by a hot press, and obtain the outer fabric of the fireproof clothing after cooling.

[0017] As a further optimization solution of the present invention, in step 2, the distance between adjacent second winding sheets is 0.5 mm.

[0018] As a further optimization scheme of the present invention, in step three, after hot pressing, the ratio of the diameter of the first winding sheet to the length of the second winding sheet is (1~1.6):(0.6~1.2), and after hot pressing, the maximum width of the second winding sheet is three times the minimum width of the second winding sheet.

[0019] The beneficial effects of the present invention are:

[0020] The present invention forms a first winding sheet and a second winding sheet by winding on a first braided wire, uses the wound first braided wire as a weft and the second braided wire as a warp, connects the first winding sheet and the second winding sheet located in the same straight line direction in sequence through a plurality of second braided wires, and obtains a tear-resistant net after hot pressing and shaping treatment, so that the outer fabric of the produced fire retardant clothing has good tear resistance and can maintain good air permeability and elasticity. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0022] Figure 2 It is a schematic structural diagram of the tear-resistant net of the present invention.

[0023] Figure 3 It is a structural schematic diagram of the weft of the present invention.

[0024] Figure 4 The present invention Figure 1 A-section structure enlarged view.

[0025] In the figure: 1. Inner layer; 2. Tear-resistant layer; 21. First braided wire; 22. First winding sheet; 23. Second winding sheet; 24. Second braided wire; 3. Heat-insulating and fire-proof layer; 4. Waterproof outer layer; 5. Reinforcement layer. DETAILED DESCRIPTION

[0026] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0027] like Figure 1-4 As shown, an outer fabric of a tear-resistant fireproof clothing comprises an inner layer 1, an anti-tear layer 2 arranged on the top of the inner layer 1, a heat-insulating fireproof layer 3 arranged on the top of the anti-tear layer 2, and a waterproof outer layer 4 arranged on the top of the heat-insulating fireproof layer 3;

[0028] The tear-resistant layer 2 comprises a plurality of neatly arranged first braided wires 21, a plurality of first winding sheets 22 arranged on the first braided wires 21 at equal intervals, and second winding sheets 23 symmetrically arranged on both sides of the first winding sheets 22. The first winding sheets 22 and the second winding sheets 23 located in the same straight line direction are connected in sequence by different second braided wires 24.

[0029] The outer surface of the anti-tear layer 2 is evenly coated with a flame retardant coating adhesive to form a reinforcement layer 5 on the outer surface of the anti-tear layer 2 .

[0030] Preferably, the first winding sheet 22 is transformed from a spherical shape into a disc shape after being hot-pressed, and the second winding sheet 23 is transformed from a teardrop shape into a fan shape after being hot-pressed.

[0031] Preferably, the narrow end of the fan-shaped second winding sheet 23 is connected to the first winding sheet 22 .

[0032] The outer fabric of the tear-resistant fireproof clothing is woven according to the following weaving method, and the specific steps are as follows:

[0033] Step 1: Using aramid flame retardant fiber, polyester flame retardant fiber and cotton fiber as textile raw materials, a first braided wire 21, a second braided wire 24 and a winding wire for winding to form a first winding sheet 22 and a second winding sheet 23 are woven in a mass ratio of 2.3:2.8:4.9 for standby use;

[0034] Step 2: Wrap the first braided wire 21 to form a spherical first winding sheet 22, and symmetrically wrap the first winding sheet 22 along the weft direction of the first winding sheet 22 on both sides of the first winding sheet 22 with the first winding sheet 22 as the center to form a teardrop-shaped second winding sheet 23, the distance between adjacent second winding sheets 23 is 0.5mm, repeat the above steps to process the first braided wire 21 to obtain the weft;

[0035] Step 3: Weaving with the second braided wire 24 as the warp and the weft obtained in step 2, the second winding sheets 23 in the same straight line direction are sequentially connected with the same second braided wire 24, and the first winding sheets 22 in the same straight line direction are also sequentially connected with the same second braided wire 24, so as to weave a tear-resistant mesh, and then heat-pressing the tear-resistant mesh with a hot pressing roller to press the spherical first winding sheet 22 into a disc shape, and press the tear-drop-shaped second winding sheet 23 into a fan shape, and the tear-resistant mesh after heat pressing is used as the tear-resistant layer 2;

[0036] Step 4: The water-based polyurethane emulsion, the water-based acrylic emulsion, the phosphorus-based flame retardant additive, and the thickener are fully mixed to obtain a flame retardant coating adhesive, and the flame retardant coating adhesive is evenly coated on the surface of the tear-resistant mesh, and a reinforcement layer 5 is obtained after curing;

[0037] Step 5: Place non-woven fabric at the bottom of the reinforcement layer 5, with the non-woven fabric as the inner layer 1, place heat-insulating fireproof cloth on the top of the reinforcement layer 5, with the heat-insulating fireproof cloth as the heat-insulating fireproof layer 3, place waterproof cloth on the top of the heat-insulating fireproof layer 3, with the waterproof cloth as the waterproof outer layer 4, and transport multiple layers of fabric at the same time, fix them together by hot pressing with a hot press, and then obtain the outer fabric of the fireproof clothing after cooling treatment with cooling equipment.

[0038] In order to study the influence of various factors in the weaving method of the outer fabric of the fireproof clothing on the various properties of the outer fabric of the woven fireproof clothing, the weaving scheme was adjusted based on the above weaving method. The specific scheme is shown in Table 1:

[0039] Table 1

[0040]

[0041] In order to verify the effect of the present invention, the outer fabrics of the fire retardant clothing woven by groups 1-9 were tested. Each group of outer fabrics of the fire retardant clothing had 30 pieces, corresponding to groups 1-9, and the length and width of the fabrics were 10cm×10cm. The tear resistance test, air permeability test and interweaving resistance test of the outer fabrics of the fire retardant clothing were carried out at room temperature of 25℃±2℃, and the corresponding number was group AI.

[0042] The tear resistance test was carried out according to the test method of NFG07-119-1972 "Textile. Fabric test. Determination of breaking force and elongation at break of fabric".

[0043] The air permeability test is carried out in accordance with the test method of GB / T5453-1997 "Determination of air permeability of textile fabrics".

[0044] The interweaving resistance test is carried out in accordance with the determination method of FZ / T01145-2018 "Test method for interweaving resistance of textiles".

[0045] The experimental test results are shown in Table 2:

[0046] Table 2

[0047]

[0048] Experimental conclusion: The outer fabric of the fire retardant clothing woven according to the 9th group of schemes can withstand a greater breaking strength. In addition, the outer fabric of the fire retardant clothing has a greater elongation at break. Therefore, the outer fabric of the fire retardant clothing has good tear resistance and elasticity, and can also maintain good breathability. Therefore, the 9th group of schemes is the optimal scheme.

[0049] In order to verify the influence of the first winding sheet 22 and the second winding sheet 23 on the tear resistance, elasticity and air permeability of the outer fabric of the fireproof clothing in the method of weaving the outer fabric of the fireproof clothing, comparative examples 1 and 2 are set, and comparative example 1 is as follows:

[0050] Comparative Example 1

[0051] Step 1: Using a textile machine, aramid flame retardant fiber, polyester flame retardant fiber, and cotton fiber as textile raw materials, a first braided thread 21 and a second braided thread 24 are woven in a mass ratio of 2.3:2.8:4.9;

[0052] Step 2: Weaving a tear-resistant mesh using a textile device with the first braided wire 21 as the weft and the second braided wire 24 as the warp, with the distance between adjacent intersections being 0.25 mm, and then heat-pressing the tear-resistant mesh using a hot pressing roller to set the tear-resistant mesh, and the tear-resistant mesh after heat pressing is the tear-resistant layer 2;

[0053] Step 3: Fully mix the water-based polyurethane emulsion, water-based acrylic emulsion, phosphorus-based flame retardant additive, and thickener by a stirring device to form a flame retardant coating adhesive, and evenly coat the flame retardant coating adhesive on the surface of the tear-resistant mesh by a spraying device, and solidify after heat dissipation and cooling to form a reinforcement layer 5;

[0054] Step 4: Place non-woven fabric at the bottom of the reinforcement layer 5, with the non-woven fabric as the inner layer 1, place heat-insulating fireproof cloth on the top of the reinforcement layer 5, with the heat-insulating fireproof cloth as the heat-insulating fireproof layer 3, place waterproof cloth on the top of the heat-insulating fireproof layer 3, with the waterproof cloth as the waterproof outer layer 4, and transport multiple layers of fabric at the same time, fix them together by hot pressing with a hot press, and then obtain the outer fabric of the fireproof clothing after cooling treatment with cooling equipment.

[0055] Comparative Example 2

[0056] Replace step 2 of comparative example 1 with:

[0057] Step 2: Weaving a tear-resistant mesh with the first braided wire 21 as the weft and the second braided wire 24 as the warp through a textile device, with the distance between adjacent intersections being 0.4 mm, and then heat-pressing the tear-resistant mesh with a hot pressing roller to form the tear-resistant layer 2;

[0058] The remaining steps remain the same as those in Comparative Example 1.

[0059] In order to verify the effect of the present invention, the outer fabrics of the fireproof clothing woven according to the comparative examples 1 and 2 were tested, and the corresponding numbers were comparative example 1 group and comparative example 2 group. The testing method was the same as above, and the experimental test results are shown in Table 5:

[0060] Table 5

[0061]

[0062] Experimental conclusion: when the outer fabric of the fireproof clothing produced according to the 9th group of schemes can withstand a tear strength equal to or slightly greater than the outer fabric of the fireproof clothing produced according to the scheme of comparative example 1, the elasticity and air permeability of the outer fabric of the fireproof clothing produced according to the 9th group of schemes are better than those of the outer fabric of the fireproof clothing produced according to the scheme of comparative example 1, and when the air permeability of the outer fabric of the fireproof clothing produced according to the scheme of comparative example 2 is close to that of the outer fabric of the fireproof clothing produced according to the 9th group of schemes, the tear resistance and elasticity of the outer fabric of the fireproof clothing produced according to the scheme of comparative example 2 are greatly reduced. Therefore, the design of the first winding sheet 22 and the second winding sheet 23 can improve the elasticity and air permeability of the outer fabric of the fireproof clothing while ensuring the tear resistance.

[0063] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A method for weaving a tear-resistant fireproof clothing outer fabric, characterized in that: The outer fabric of the tear-resistant fireproof clothing comprises an inner layer, an anti-tear layer, a heat-insulating fireproof layer and a waterproof outer layer in sequence; The tear-resistant layer comprises a plurality of first braided wires arranged in parallel, each of the first braided wires is linearly distributed with a plurality of winding units, the winding unit is composed of a first winding sheet and a second winding sheet symmetrical on both sides thereof, and the first winding sheets and the second winding sheets on adjacent first braided wires and located in the same straight line are respectively connected by the second braided wires; The outer surface of the tear-resistant layer is uniformly coated with a flame-retardant coating adhesive to form a reinforcement layer on the outer surface of the tear-resistant layer; The first winding sheet is changed from a spherical shape to a disc shape after being hot-pressed, and the second winding sheet is changed from a teardrop shape to a fan shape after being hot-pressed; The narrow end of the fan-shaped second winding sheet is connected to the first winding sheet; The weaving method of the outer layer fabric of the tear-resistant fireproof clothing comprises the following specific steps: Step 1: Using aramid flame retardant fiber, polyester flame retardant fiber and cotton fiber as textile raw materials to weave a first braided wire, a second braided wire and a winding wire used for winding to form a first winding sheet and a second winding sheet for standby use; Step 2: Winding the first braided wire to form a spherical first winding piece, and symmetrically winding the first winding piece along the weft direction of the first winding piece on both sides of the first winding piece with the first winding piece as the center to form a water drop-shaped second winding piece, repeating the above steps to process the first braided wire to obtain the weft wire; Step 3: Weaving with the second braided wire as the warp and the weft obtained in step 2, the second winding sheet and the first winding sheet in the same straight line direction are sequentially connected by the same second braided wire, so as to obtain a tear-resistant mesh. After the tear-resistant mesh is hot-pressed and formed, the spherical first winding sheet is pressed into a disc shape, and the tear-drop-shaped second winding sheet is pressed into a fan shape, so as to obtain a tear-resistant layer; Step 4: The flame retardant coating glue is evenly coated on the surface of the tear-resistant mesh and cured to obtain a reinforcement layer; Step 5: Lay the non-woven fabric, the fabric prepared in step 4, the heat-insulating fireproof fabric and the waterproof fabric in sequence, perform heat-pressing and bonding by a hot press, and obtain the outer fabric of the fireproof clothing after cooling.

2. The method for weaving the outer layer fabric of tear-resistant fireproof clothing according to claim 1, characterized in that: In step 2, the distance between adjacent second winding sheets is 0.5 mm.

3. The weaving method of the tear-resistant fireproof clothing outer fabric according to claim 1, characterized in that: In step three, after hot pressing, the ratio of the diameter of the first winding sheet to the length of the second winding sheet is (1-1.6): (0.6-1.2).

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