High-cold-resistance windproof textile fabric and preparation process thereof

Abstract

The application discloses a kind of high cold-resistant windproof textile fabric and preparation process thereof, belong to the technical field of textile fabric.The fabric is composed of base cloth layer, first hot melt adhesive point layer, windproof layer, second hot melt adhesive point layer and cold-resistant layer arranged in sequence, the base cloth layer adopts plain weave or twill weave structure, the windproof layer is provided with hydrophilic modified coating on both sides, the outer surface of the cold-resistant layer is provided with water-repellent finishing layer, and the two hot melt adhesive point layers are arranged in regular lattice pattern.The application defines the fiber ratio, weaving density, grammage and thickness aperture parameters of each functional layer, and specifies the temperature, power, pressure and speed process parameters of each process.The application optimizes the multi-layer composite structure and lattice glue point composite mode, matches the raw material ratio and process parameters, the process flow is regular and controllable, the product structure arrangement is reasonable, adapts to the fabric use demand of clothing and outdoor products in cold environment, and the preparation process is simple and easy to scale production.

Description

Technical Field

[0001] This invention relates to the field of windproof fabric technology, specifically to a highly cold-resistant and windproof textile fabric and its preparation process. Background Technology

[0002] With the increasing demand for outdoor sports, polar operations, and daily clothing in cold regions, higher requirements are being placed on the cold resistance and windproofness of textile fabrics. In existing technologies, most windproof fabrics achieve their windproof function through a single film composite, which is prone to problems such as film embrittlement and interlayer adhesion failure in low-temperature environments, resulting in insufficient cold resistance.

[0003] Meanwhile, some fabrics employ a full-width adhesive coating process to achieve windproof performance, which severely impacts the fabric's moisture permeability and breathability, leading to decreased wearing comfort. Furthermore, existing manufacturing processes suffer from inaccurate parameter control and poor product quality stability, making it difficult to meet the demands of large-scale industrial production. Summary of the Invention

[0004] To address the aforementioned problems, this invention proposes a high-cold-resistant and windproof textile fabric and its preparation process. This is achieved by optimizing the fabric's layering structure and composite method, combined with targeted surface treatment processes, thus solving the problems of poor cold resistance, easy peeling between layers, and insufficient breathability in existing fabrics.

[0005] To solve the aforementioned technical problems, the present invention proposes the following technical solution: a highly cold-resistant and windproof textile fabric, comprising a base fabric layer, a first hot melt adhesive dot layer, a windproof layer, a second hot melt adhesive dot layer, and a cold-resistant layer, which are sequentially layered. The base fabric layer adopts a plain or twill weave structure. The lower surface of the windproof layer is bonded to the first hot melt adhesive dot layer, and the upper surface of the windproof layer is bonded to the second hot melt adhesive dot layer. Both surfaces of the windproof layer are provided with a hydrophilic modified coating, and the outer surface of the cold-resistant layer is provided with a water-repellent finishing layer. Both the first and second hot melt adhesive dot layers are arranged in a regular dot matrix pattern.

[0006] Furthermore, the base fabric layer is made of a blend of polyester fiber and polyamide fiber, with a mass ratio of polyester fiber to polyamide fiber of 3:1-5:1. The warp density of the base fabric layer is 280-360 threads / 10cm, the weft density is 220-300 threads / 10cm, and the basis weight of the base fabric layer is 120-180g / m².

[0007] Furthermore, the windproof layer is a polytetrafluoroethylene microporous membrane with a thickness of 15-30 μm and a pore size of 0.1-0.5 μm, and the thickness of the hydrophilic modified coating is 1-3 μm.

[0008] Furthermore, the cold-resistant layer is made of a blend of polyacrylonitrile fiber and wool fiber, with a mass ratio of polyacrylonitrile fiber to wool fiber of 2:1-4:1. The cold-resistant layer adopts a satin weave structure, the weight of the cold-resistant layer is 150-220 g / m², and the thickness of the water-repellent finishing layer is 0.5-2 μm.

[0009] Furthermore, the diameter of the hot melt adhesive dots in both the first and second hot melt adhesive dots is 0.5-1.5 mm, the center-to-center distance between adjacent hot melt adhesive dots is 3-8 mm, and the coating amount of both the first and second hot melt adhesive dots is 8-15 g / m².

[0010] The present invention also provides a preparation process for the above-mentioned high cold-resistant and windproof textile fabric, comprising the following steps:

[0011] S1: Prepare the base fabric layer by mixing polyester fiber and polyamide fiber in a certain proportion and spinning them, weaving them with a plain or twill loom, and obtaining the base fabric layer after pre-forming treatment.

[0012] S2: To prepare a windproof layer, the two surfaces of the polytetrafluoroethylene microporous membrane are subjected to plasma treatment, and then a hydrophilic modified coating is applied to the two surfaces and dried.

[0013] S3: To prepare the cold-resistant layer, polyacrylonitrile fiber and wool fiber are mixed in a certain proportion and spun. The yarn is woven using a satin loom. After pre-shrinking, a water-repellent finishing layer is coated on its outer surface and then dried.

[0014] S4: Double-layer composite. First, a first hot melt adhesive dot layer is applied to the upper surface of the base fabric layer. The treated windproof layer is then attached to the first hot melt adhesive dot layer. Next, a second hot melt adhesive dot layer is applied to the upper surface of the windproof layer. The treated cold-resistant layer is then attached to the second hot melt adhesive dot layer. The semi-finished fabric is obtained by hot-pressing composite.

[0015] S5: Finishing process, the semi-finished fabric is washed, dried and finalized in sequence to obtain the finished fabric.

[0016] Furthermore, the temperature of the pre-treatment in step S1 is 160-180℃, and the treatment time is 20-40s; the power of the plasma treatment in step S2 is 200-400W, and the treatment time is 30-60s.

[0017] Furthermore, in step S4, the hot-pressing temperature is 120-140℃, the hot-pressing pressure is 0.3-0.6MPa, and the hot-pressing speed is 5-10m / min.

[0018] Furthermore, the drying temperature in step S5 is 80-100℃, and the drying time is 10-20 min; the final shaping treatment temperature is 150-170℃, and the treatment time is 15-30 s.

[0019] The advantages of this invention compared to the prior art are:

[0020] This invention employs a three-layer composite structure consisting of a base fabric layer, a windproof layer, and a cold-resistant layer. By combining the synergistic design of double-sided hydrophilic modification of the windproof layer and water-repellent finishing of the surface of the cold-resistant layer, the micro-pore structure and surface properties of the fabric are optimized, achieving a balance between windproof performance and moisture permeability.

[0021] This invention uses hot melt adhesive dots distributed in a regular dot matrix for interlayer bonding, which not only ensures the bonding strength between each layer and avoids interlayer delamination in low-temperature environments, but also preserves the breathability channels of the fabric to the greatest extent and improves wearing comfort.

[0022] The preparation process of this invention is clear, the range of each process parameter is well-defined and controllable, the production process is stable, the product consistency is good, and it can meet the requirements of large-scale industrial production. Attached Figure Description

[0023] Figure 1 This is a perspective view of a highly cold-resistant and windproof textile fabric according to the present invention;

[0024] Figure 2 This is a front view of a highly cold-resistant and windproof textile fabric according to the present invention.

[0025] As shown in the figure: 1. Base fabric layer; 2. First hot melt adhesive dot layer; 3. Windproof layer; 4. Second hot melt adhesive dot layer; 5. Cold-resistant layer; 6. Hydrophilic modified coating; 7. Water-repellent finishing layer. Detailed Implementation

[0026] The following is in conjunction with the appendix Figure 1 To be continued Figure 2 The present invention will be described in further detail below.

[0027] Example 1

[0028] This embodiment provides a highly cold-resistant and windproof textile fabric, the structural parameters of which are as follows:

[0029] The base fabric layer is made of polyester fiber and polyamide fiber blended at a mass ratio of 4:1, with a warp density of 320 threads / 10cm, a weft density of 260 threads / 10cm, a weight of 150g / m², and a plain weave structure.

[0030] The windproof layer is a polytetrafluoroethylene microporous membrane with a thickness of 22μm and a pore size of 0.3μm. Both surfaces are coated with a hydrophilic modified coating with a thickness of 2μm.

[0031] The cold-resistant layer is made of polyacrylonitrile fiber and wool fiber blended in a mass ratio of 3:1, with a satin weave structure and a weight of 185g / m². The outer surface is covered with a water-repellent finishing layer with a thickness of 1.2μm.

[0032] The diameter of the hot melt adhesive dots in both the first and second hot melt adhesive dots is 1 mm, the center-to-center distance between adjacent hot melt adhesive dots is 5 mm, and the coating amount is 11 g / m².

[0033] The fabric is manufactured using the following process:

[0034] S1: Prepare the base fabric layer by mixing polyester fiber and polyamide fiber at a mass ratio of 4:1 and spinning them. The mixture is woven on a plain weave loom and pre-shaped at 170°C for 30 seconds to obtain the base fabric layer.

[0035] S2: To prepare the windproof layer, the two surfaces of the polytetrafluoroethylene microporous membrane were subjected to plasma treatment at a power of 300W for 45s. Then, a hydrophilic modified coating was applied to the two surfaces and dried at 90℃ to obtain the windproof layer.

[0036] S3: To prepare the cold-resistant layer, polyacrylonitrile fiber and wool fiber are mixed at a mass ratio of 3:1 and spun. The yarn is woven using a satin loom. After pre-shrinking treatment, a water-repellent finishing layer is coated on its outer surface and dried at 85°C to obtain the cold-resistant layer.

[0037] S4: Double-layer composite. First, a first hot melt adhesive dot layer is applied to the upper surface of the base fabric layer. The treated windproof layer is then bonded to the first hot melt adhesive dot layer. Next, a second hot melt adhesive dot layer is applied to the upper surface of the windproof layer. The treated cold-resistant layer is then bonded to the second hot melt adhesive dot layer. The composite is then hot-pressed at 130℃ and 0.45MPa pressure at a speed of 7.5m / min to obtain a semi-finished fabric.

[0038] S5: Finishing process: The semi-finished fabric is washed, dried at 90℃ for 15 minutes, and then finalized at 160℃ for 22 seconds to obtain the finished fabric.

[0039] Example 2

[0040] This embodiment provides a highly cold-resistant and windproof textile fabric, the structural parameters of which are as follows:

[0041] The base fabric layer is made of polyester fiber and polyamide fiber blended at a mass ratio of 3:1, with a warp density of 280 threads / 10cm, a weft density of 220 threads / 10cm, a weight of 120g / m², and a twill weave structure.

[0042] The windproof layer is a polytetrafluoroethylene microporous membrane with a thickness of 15μm and a pore size of 0.1μm. Both surfaces are coated with a hydrophilic modified coating with a thickness of 1μm.

[0043] The cold-resistant layer is made of polyacrylonitrile fiber and wool fiber blended in a mass ratio of 2:1, with a satin weave structure and a weight of 150g / m². The outer surface is covered with a water-repellent finishing layer with a thickness of 0.5μm.

[0044] The diameter of the hot melt adhesive dots in both the first and second hot melt adhesive dot layers is 0.5 mm, the center-to-center distance between adjacent hot melt adhesive dots is 3 mm, and the coating amount is 8 g / m².

[0045] The fabric is manufactured using the following process:

[0046] S1: Prepare the base fabric layer by mixing polyester fiber and polyamide fiber at a mass ratio of 3:1 and spinning them. The mixture is woven on a twill loom and pre-shaped at 160°C for 20 seconds to obtain the base fabric layer.

[0047] S2: To prepare the windproof layer, the two surfaces of the polytetrafluoroethylene microporous membrane were subjected to plasma treatment at a power of 200W for 30s. Then, a hydrophilic modified coating was applied to the two surfaces and dried at 80℃ to obtain the windproof layer.

[0048] S3: To prepare the cold-resistant layer, polyacrylonitrile fiber and wool fiber are mixed at a mass ratio of 2:1 and spun. The yarn is woven using a satin loom. After pre-shrinking treatment, a water-repellent finishing layer is coated on its outer surface and dried at 75°C to obtain the cold-resistant layer.

[0049] S4: Double-layer composite. First, a first hot melt adhesive dot layer is applied to the upper surface of the base fabric layer. The treated windproof layer is then bonded to the first hot melt adhesive dot layer. Next, a second hot melt adhesive dot layer is applied to the upper surface of the windproof layer. The treated cold-resistant layer is then bonded to the second hot melt adhesive dot layer. The composite is then hot-pressed at 120℃ and 0.3MPa pressure at a speed of 5m / min to obtain a semi-finished fabric.

[0050] S5: Finishing process: The semi-finished fabric is washed with water, dried at 80℃ for 10 minutes, and then finalized at 150℃ for 15 seconds to obtain the finished fabric.

[0051] Example 3

[0052] This embodiment provides a highly cold-resistant and windproof textile fabric, the structural parameters of which are as follows:

[0053] The base fabric layer is made of polyester fiber and polyamide fiber blended at a mass ratio of 5:1, with a warp density of 360 threads / 10cm, a weft density of 300 threads / 10cm, a weight of 180g / m², and a plain weave structure.

[0054] The windproof layer is a polytetrafluoroethylene microporous membrane with a thickness of 30μm and a pore size of 0.5μm. Both surfaces are coated with a hydrophilic modified coating with a thickness of 3μm.

[0055] The cold-resistant layer is made of polyacrylonitrile fiber and wool fiber blended in a mass ratio of 4:1, with a satin weave structure and a weight of 220g / m². The outer surface is covered with a water-repellent finishing layer with a thickness of 2μm.

[0056] The diameter of the hot melt adhesive dots in both the first and second hot melt adhesive dot layers is 1.5 mm, the center-to-center distance between adjacent hot melt adhesive dots is 8 mm, and the coating amount is 15 g / m².

[0057] The fabric is manufactured using the following process:

[0058] S1: Prepare the base fabric layer by mixing polyester fiber and polyamide fiber at a mass ratio of 5:1 and spinning them. The mixture is woven on a plain weave loom and pre-shaped at 180°C for 40 seconds to obtain the base fabric layer.

[0059] S2: To prepare the windproof layer, the two surfaces of the polytetrafluoroethylene microporous membrane were subjected to plasma treatment at a power of 400W for 60s. Then, a hydrophilic modified coating was applied to the two surfaces and dried at 100℃ to obtain the windproof layer.

[0060] S3: To prepare the cold-resistant layer, polyacrylonitrile fiber and wool fiber are mixed at a mass ratio of 4:1 and spun. The mixture is woven using a satin loom, pre-shrinked, and then coated with a water-repellent finishing layer on its outer surface. It is then dried at 95°C to obtain the cold-resistant layer.

[0061] S4: Double-layer composite. First, a first hot melt adhesive dot layer is applied to the upper surface of the base fabric layer. The treated windproof layer is then bonded to the first hot melt adhesive dot layer. Next, a second hot melt adhesive dot layer is applied to the upper surface of the windproof layer. The treated cold-resistant layer is then bonded to the second hot melt adhesive dot layer. The composite is then hot-pressed at 140℃ and 0.6MPa pressure at a speed of 10m / min to obtain a semi-finished fabric.

[0062] S5: Finishing process: The semi-finished fabric is washed with water, dried at 100℃ for 20 minutes, and then finalized at 170℃ for 30 seconds to obtain the finished fabric.

[0063] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. A highly cold-resistant and windproof textile fabric, characterized in that: The material includes a base fabric layer (1), a first hot melt adhesive dot layer (2), a windproof layer (3), a second hot melt adhesive dot layer (4), and a cold-resistant layer (5) stacked in sequence. The base fabric layer (1) adopts a plain or twill weave structure. The lower surface of the windproof layer (3) is bonded to the first hot melt adhesive dot layer (2), and the upper surface of the windproof layer (3) is bonded to the second hot melt adhesive dot layer (4). Both surfaces of the windproof layer (3) are provided with a hydrophilic modified coating (6). The outer surface of the cold-resistant layer (5) is provided with a water-repellent finishing layer (7). The first hot melt adhesive dot layer (2) and the second hot melt adhesive dot layer (4) are both distributed in a regular dot matrix pattern.

2. The high cold-resistant and windproof textile fabric according to claim 1, characterized in that: The base fabric layer (1) is made of polyester fiber and polyamide fiber blended together, with the mass ratio of polyester fiber to polyamide fiber being 3:1-5:

1. The warp density of the base fabric layer (1) is 280-360 threads / 10cm, the weft density is 220-300 threads / 10cm, and the basis weight of the base fabric layer (1) is 120-180g / m².

3. The high cold-resistant and windproof textile fabric according to claim 1, characterized in that: The windproof layer (3) is a polytetrafluoroethylene microporous membrane with a thickness of 15-30 μm and a pore size of 0.1-0.5 μm. The thickness of the hydrophilic modified coating (6) is 1-3 μm.

4. The high cold-resistant and windproof textile fabric according to claim 1, characterized in that: The cold-resistant layer (5) is made of a blend of polyacrylonitrile fiber and wool fiber, with a mass ratio of polyacrylonitrile fiber to wool fiber of 2:1-4:

1. The cold-resistant layer (5) adopts a satin weave structure, and the weight of the cold-resistant layer (5) is 150-220 g / m². The thickness of the water-repellent finishing layer (7) is 0.5-2 μm.

5. The high cold-resistant and windproof textile fabric according to claim 1, characterized in that: The diameter of the hot melt adhesive dots in the first hot melt adhesive dot layer (2) and the second hot melt adhesive dot layer (4) is 0.5-1.5 mm, the center distance between adjacent hot melt adhesive dots is 3-8 mm, and the coating amount of the first hot melt adhesive dot layer (2) and the second hot melt adhesive dot layer (4) is 8-15 g / m².

6. A process for preparing a high cold-resistant and windproof textile fabric as described in any one of claims 1-5, characterized in that: Includes the following steps: S1: Prepare the base fabric layer (1). Polyester fiber and polyamide fiber are mixed in proportion and then spun. The yarn is woven using a plain or twill loom and pre-shaped to obtain the base fabric layer (1). S2: Prepare a windproof layer (3), perform plasma treatment on the two surfaces of the polytetrafluoroethylene microporous membrane, then coat the two surfaces with a hydrophilic modified coating (6) and dry them; S3: Prepare a cold-resistant layer (5). Mix polyacrylonitrile fiber and wool fiber in a certain proportion and then spin the yarn. Weave the yarn using a satin loom. After pre-shrinking treatment, coat the outer surface with a water-repellent finishing layer (7) and dry it. S4: Double-layer composite, firstly, a first hot melt adhesive dot layer (2) is coated on the upper surface of the base fabric layer (1), the treated windproof layer (3) is attached to the first hot melt adhesive dot layer (2), then a second hot melt adhesive dot layer (4) is coated on the upper surface of the windproof layer (3), the treated cold-resistant layer (5) is attached to the second hot melt adhesive dot layer (4), and the semi-finished fabric is obtained by hot pressing composite; S5: Finishing process, the semi-finished fabric is washed, dried and finalized in sequence to obtain the finished fabric.

7. The preparation process of the high cold-resistant and windproof textile fabric according to claim 6, characterized in that: The temperature of the pre-treatment in step S1 is 160-180℃ and the treatment time is 20-40s; the power of the plasma treatment in step S2 is 200-400W and the treatment time is 30-60s.

8. The preparation process of the high cold-resistant and windproof textile fabric according to claim 6, characterized in that: The hot-pressing temperature in step S4 is 120-140℃, the hot-pressing pressure is 0.3-0.6MPa, and the hot-pressing speed is 5-10m / min.

9. The preparation process of the high cold-resistant and windproof textile fabric according to claim 6, characterized in that: The drying temperature in step S5 is 80-100℃ and the drying time is 10-20 min; the final shaping temperature is 150-170℃ and the processing time is 15-30 s.

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