Wind-resistant and warm-keeping functional fabric and preparation method thereof

Abstract

The present invention relates to the field of textile technology, and in particular to a wind-resistant and warm-keeping functional fabric and a preparation method thereof. The present invention provides a wind-resistant and warm-keeping functional fabric, which comprises a heating layer, a thermal insulation layer and a windproof layer that are tightly fitted from the inside to the outside; wherein the heating layer is a silk layer with a heating function and contains far-infrared functional fibers, the thermal insulation layer is a fiber layer with a heat-insulating function and contains modified aerogel fibers, the modified aerogel fibers are aerogel fibers coated with polyvinyl alcohol on the surface, and the windproof layer is a composite polyester fiber layer and contains volcanic rock fibers. The wind-resistant and warm-keeping functional fabric provided by the present invention has excellent warming and windproof effects, with a warmth retention rate of more than 70% and an air permeability between 10 and 15 mm / s, so that the fabric has moderate air permeability while having an appropriate windproof effect, ensuring a good sense of comfort for the human body.

Description

Technical Field

[0001] The present invention relates to the field of textile technology, and in particular to a wind-resistant and warm-keeping functional fabric and a preparation method thereof. Background Art

[0002] With the rapid development of my country's economy, people's living standards have gradually improved, and people's requirements for clothing quality have become higher and higher. At present, a variety of functional fabrics have appeared on the market, such as antibacterial and moisture-absorbing fabrics, windproof and warm fabrics, wear-resistant fabrics, etc.

[0003] However, most existing fabrics have certain flaws. For example, while antibacterial and moisture-absorbing fabrics have good moisture absorption and antibacterial properties, they struggle to withstand strong winds. Windproof and thermal fabrics, while providing good warmth retention, suffer from poor breathability, impacting comfort. Furthermore, some windproof and thermal fabrics experience a significant decrease in warmth retention after repeated washings, shortening their service life. Furthermore, some thermal fabrics primarily increase their warmth retention by increasing their thickness. This not only makes the fabric thicker and heavier, increasing the "weight" felt when wearing it, but also fails to significantly improve the windproofing effect. Summary of the Invention

[0004] In view of this, the present invention provides a wind-resistant and warm-keeping functional fabric and a preparation method thereof. The wind-resistant and warm-keeping fabric not only has good warmth and windproof effects, but also has good air permeability, and the fabric is light and has satisfactory comfort.

[0005] The technical solutions of the present invention are as follows:

[0006] The present invention provides a windproof and warm-keeping functional fabric, which comprises a heat-generating layer, a heat-insulating layer and a windproof layer which are tightly fitted from the inside to the outside.

[0007] Wherein, the heating layer is a silk layer with heating function, and the silk layer contains far infrared functional fibers;

[0008] The thermal insulation layer is a fiber layer with a heat insulation function, and the fiber layer contains modified aerogel fibers, and the modified aerogel fibers are aerogel fibers coated with polyvinyl alcohol;

[0009] The windproof layer is a composite polyester fiber layer containing volcanic rock fibers.

[0010] By combining functional layers with different functions, the resulting fabric can increase the fabric temperature through self-heating. The thermal insulation layer with heat insulation function will also retain the heat of the heating layer inside the fabric as much as possible, thereby maintaining human body temperature while blocking the invasion of cold air from the outside; the windproof layer uses composite polyester fiber to further improve the windproof effect of the fabric.

[0011] Optionally, the silk layer is woven from a first yarn blended from 70wt% to 80wt% of silk, 10wt% to 20wt% of cashmere, and 10wt% to 15wt% of far-infrared functional fiber.

[0012] Silk, also known as natural silk, refers to fibers formed from the mucus secreted by silkworms. The natural curled structure of silk easily forms an air layer, which has the function of absorbing moisture and generating heat. Cashmere is a fine wool that is lighter and warmer than wool, and its fine and fluffy structure can defend against the invasion of external cold air. The present invention uses silk as the main raw material for the heating layer, and blends it with cashmere and far-infrared functional fibers into yarn. The heating layer woven from the yarn not only retains the soft and skin-friendly touch of silk and cashmere, but the introduced far-infrared functional fibers can also use the far-infrared rays emitted by the human body to self-heat, achieving the dual effects of heating and heat preservation.

[0013] Optionally, the far-infrared functional fiber is a polyester fiber added with zirconium dioxide, titanium dioxide or graphene.

[0014] Optionally, the thermal insulation layer is woven from a second yarn obtained by blending 10wt% to 20wt% of the modified aerogel fiber, 30wt% to 50wt% of the cotton fiber, and 40wt% to 60wt% of the hemp fiber.

[0015] Optionally, the modified aerogel fiber is prepared by immersing the aerogel fiber in a polyvinyl alcohol aqueous solution at 95-100°C, ultrasonically permeating the polyvinyl alcohol evenly, taking it out and drying it, then immersing it in a crosslinker solution at 80-90°C, stirring it evenly, and drying it to obtain the modified aerogel fiber.

[0016] Further optionally, the modified aerogel fiber is an aerogel fiber coated with polyvinyl alcohol, specifically: the aerogel fiber is immersed in a 50% to 60% polyvinyl alcohol aqueous solution at 95-100°C, ultrasonically penetrates the polyvinyl alcohol evenly, removes and dries, then immerses in a crosslinker solution at 80-90°C, stirs evenly, and then dries to obtain the modified aerogel fiber. The mass ratio of aerogel fiber to polyvinyl alcohol is 1:5-8.

[0017] The cross-linking agent solution may be a 0.5% to 2% glutaraldehyde solution or a 1% to 4% boric acid solution, or may be other types of cross-linking agents.

[0018] Optionally, the aerogel fiber is selected from silica aerogel fiber or graphene aerogel fiber.

[0019] The present invention utilizes a second yarn obtained by blending cotton fiber and hemp fiber with modified aerogel fiber to weave a thermal insulation layer, wherein the aerogel fiber is pre-modified with polyvinyl alcohol to have better spinnability and toughness. After heat curing treatment with a cross-linking agent, the polyvinyl alcohol can be cross-linked to enhance the stability of the modified aerogel fiber. After the aerogel fiber is better blended with cotton fiber and hemp fiber into a second yarn, the porous nanostructure in the modified aerogel fiber gives the second yarn good thermal insulation performance, which complements the air permeability of the cotton fiber and hemp fiber, so that the thermal insulation layer not only has thermal insulation and heat preservation but also has a breathable function.

[0020] Optionally, the windproof layer is woven from a third yarn formed by ring spinning of volcanic rock fiber and polyester fiber, wherein the third yarn is a core-spun yarn, the volcanic rock fiber is the core yarn, and the polyester fiber is the sheath.

[0021] Optionally, the diameter of the volcanic rock fiber is 10-20 μm; the diameter of the core-spun yarn is 30-40 μm.

[0022] Optionally, the mass ratio of the volcanic rock fiber to the polyester fiber is 1:3-5.

[0023] Volcanic rock fiber and polyester fiber are ring-spun to form a third yarn with a core-sheath structure. During their research, the inventors discovered that volcanic rock fiber not only has heat-insulating and heat-generating properties but also has excellent wind resistance. By wrapping the volcanic rock fiber within the polyester fiber through ring spinning, this not only reduces damage to the volcanic rock fiber during weaving and subsequent use, ensuring the fabric's wind resistance, but also increases its breaking strength and durability.

[0024] The present invention also provides a preparation method of the above-mentioned wind-resistant and warm functional fabric, the steps including: weaving the first yarn into the heating layer of the fabric by a knitting method, weaving the second yarn and the third yarn into the thermal insulation layer and the windproof layer respectively by a weaving method, and weaving the heating layer, the thermal insulation layer and the windproof layer in sequence by a multi-layer weaving method to obtain a fabric which consists of a heating layer, a thermal insulation layer and a windproof layer from the inside to the outside.

[0025] Optionally, the yarn count of the heating layer is 50s~70s, the yarn count of the heat-insulating layer is 20s~35s, and the yarn count of the windproof layer is 60s~70s.

[0026] The present invention adopts the yarn count of specific heating layer, heat-insulating layer and windproof layer, combines the material of each functional layer with the weaving method, and ensures that each functional layer plays its role to the maximum extent.

[0027] Compared with the existing technology, the beneficial effect of the present invention is that the wind-resistant and warm-keeping functional fabric provided by the present invention has excellent warming and windproof effects, the warmth retention rate can reach more than 70%, and the air permeability is between 10~15mm / s, so that the fabric has appropriate windproof effect while also having moderate air permeability, ensuring that the human body has good comfort. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0029] Those skilled in the art will understand that, unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by those skilled in the art in the art to which the present invention pertains. It should also be understood that terms such as those defined in common dictionaries should be understood to have meanings consistent with those in the context of the prior art and, unless specifically defined, will not be interpreted in an idealized or overly formal sense.

[0030] Unless otherwise specified, the equipment, devices, reagents, and raw materials used in the following examples and comparative examples of the present invention are all conventional commercially available products in the art.

[0031] Example 1

[0032] This embodiment provides a wind-resistant and warm-keeping functional fabric, which includes, from the inside to the outside, a tightly fitted heat-generating layer, a heat-insulating layer, and a windproof layer. The preparation method is as follows:

[0033] Pretreated silk, cashmere, and far-infrared functional fiber that meet blending requirements are uniformly mixed in a weight ratio of 75%, 15%, and 10%, respectively, and blended according to conventional yarn preparation methods to obtain a first yarn with a count of 60s. The far-infrared functional fiber used is polyester fiber added with zirconium dioxide powder.

[0034] The modified aerogel fiber, cotton fiber and hemp fiber were mixed evenly in a mass ratio of 15%, 40% and 45% respectively, and the second yarn was obtained by blending according to the conventional yarn preparation method, with a count of 30s. Among them, the modified aerogel fiber used was a modified silica aerogel fiber, and the modification method was as follows: the silica aerogel fiber and polyvinyl alcohol were weighed in a mass ratio of 1:6, the polyvinyl alcohol was dissolved in water at 95~100℃, and a polyvinyl alcohol solution with a mass fraction of 55% was prepared. The weighed silica aerogel fiber was added, and ultrasonicated for 25 minutes to uniformly impregnate the polyvinyl alcohol into the silica aerogel fiber. The fiber was then taken out and dried. The dried fiber was then placed in a solution containing 1% glutaraldehyde to crosslink the polyvinyl alcohol surface. After stirring for 10 minutes, the fiber was taken out and dried to obtain the modified aerogel fiber.

[0035] Volcanic rock fiber (diameter 10-20 μm) and polyester fiber are ring-spun at a mass ratio of 1:4 to form a third yarn (diameter 30-40 μm) with a count of 65s, in which the volcanic rock fiber is used as the core yarn and the polyester fiber is used as the sheath.

[0036] The first yarn was knitted using a single-jersey circular knitting machine with a gauge of 30 needles per inch, a needle cylinder diameter of 32 inches, a 0.6mm hook, and a knitting speed of 25 rpm to produce a close-fitting heat-generating layer. The second and third yarns were woven using conventional warp and weft weaving techniques, respectively. After inspection, singeing, and pre-shrinkage, the heat-insulating and wind-proof layers were obtained. The heat-generating, heat-insulating, and wind-proof layers were then sewn together in sequence using the third yarn to produce a wind-resistant and warm fabric.

[0037] Example 2

[0038] This embodiment provides a wind-resistant and warm-keeping functional fabric, which includes, from the inside to the outside, a tightly fitted heat-generating layer, a heat-insulating layer, and a windproof layer. The preparation method is as follows:

[0039] Pretreated silk, cashmere, and far-infrared functional fiber that meet blending requirements are uniformly mixed in a weight ratio of 70%, 20%, and 10%, respectively, and blended according to conventional yarn preparation methods to obtain a first yarn with a count of 70s. The far-infrared functional fiber used is a polyester fiber with graphene added.

[0040] The modified aerogel fiber, cotton fiber and hemp fiber were mixed evenly in a mass ratio of 10%, 50% and 40% respectively, and blended according to a conventional yarn preparation method to obtain a second yarn with a count of 25s. Among them, the modified aerogel fiber used was a modified graphene aerogel fiber, and the modification method was as follows: the graphene aerogel fiber and polyvinyl alcohol were weighed in a mass ratio of 1:8, the polyvinyl alcohol was dissolved in water at 95-100 ° C, and a polyvinyl alcohol solution with a mass fraction of 50% was prepared. The weighed graphene aerogel fiber was added, and ultrasonicated for 30 minutes to uniformly impregnate the polyvinyl alcohol into the silica aerogel fiber. The fiber was then removed and dried. The dried fiber was then placed in a 2% boric acid solution to crosslink the polyvinyl alcohol surface. After stirring for 10 minutes, the fiber was removed and dried to obtain the modified aerogel fiber.

[0041] Volcanic rock fiber (diameter 10-20 μm) and polyester fiber are ring-spun at a mass ratio of 1:5 to form a third yarn (diameter 30-40 μm) with a count of 70s, in which the volcanic rock fiber is used as the core yarn and the polyester fiber is used as the sheath.

[0042] The first yarn, the second yarn and the third yarn are woven into a heat-generating layer, a heat-insulating layer and a windproof layer respectively according to the same method as in Example 1, and then they are sewn together according to the same method to obtain a wind-resistant and warm-keeping functional fabric.

[0043] Example 3

[0044] This embodiment provides a wind-resistant and warm-keeping functional fabric, which includes, from the inside to the outside, a tightly fitted heat-generating layer, a heat-insulating layer, and a windproof layer. The preparation method is as follows:

[0045] Pretreated silk, cashmere, and far-infrared functional fiber that meet blending requirements are uniformly mixed in a weight ratio of 80%, 10%, and 10%, respectively, and blended according to a conventional yarn preparation method to obtain a first yarn with a count of 50s. The far-infrared functional fiber used is polyester fiber added with titanium dioxide powder.

[0046] The modified aerogel fiber, cotton fiber and hemp fiber were mixed evenly in a ratio of 20%, 30% and 50% by mass, respectively, and blended according to a conventional yarn preparation method to obtain a second yarn with a count of 35s. Among them, the modified aerogel fiber used was a modified silica aerogel fiber, and the modification method was as follows: the silica aerogel fiber and polyvinyl alcohol were weighed in a mass ratio of 1:7, the polyvinyl alcohol was dissolved in water at 95~100℃, and a polyvinyl alcohol solution with a mass fraction of 60% was prepared. The weighed silica aerogel fiber was added, and ultrasonicated for 25 minutes to uniformly impregnate the polyvinyl alcohol into the silica aerogel fiber. The fiber was then taken out and dried. The dried fiber was then placed in a solution containing 2% glutaraldehyde to crosslink the surface of the polyvinyl alcohol. After stirring for 8 minutes, the fiber was taken out and dried to obtain the modified aerogel fiber.

[0047] Volcanic rock fiber (diameter 10-20 μm) and polyester fiber are ring-spun at a mass ratio of 1:3 to form a third yarn (diameter 30-40 μm) with a count of 60s, in which the volcanic rock fiber is used as the core yarn and the polyester fiber is used as the sheath.

[0048] The first yarn, the second yarn and the third yarn are woven into a heat-generating layer, a heat-insulating layer and a windproof layer respectively according to the same method as in Example 1, and then they are sewn together according to the same method to obtain a wind-resistant and warm-keeping functional fabric.

[0049] Comparative Example 1

[0050] This comparative example provides a wind-resistant and warm-keeping functional fabric, which includes a tightly fitting heating layer, a thermal insulation layer and a windproof layer from the inside to the outside. Its preparation method is similar to that of Example 1, with the only difference being that the far-infrared functional fiber in the heating layer is replaced with polyester fiber. The rest of the materials and preparation methods are the same as those of Example 1.

[0051] Comparative Example 2

[0052] This comparative example provides a wind-resistant and warm-keeping functional fabric, which includes, from the inside to the outside, a tightly fitted heating layer, a thermal insulation layer, and a windproof layer. Its preparation method is similar to that of Example 1, with the only difference being that unmodified silica aerogel fiber is used in the thermal insulation layer. The rest of the materials and preparation methods are the same as those of Example 1.

[0053] Comparative Example 3

[0054] This comparative example provides a wind-resistant and warm-keeping functional fabric, which includes, from the inside to the outside, a tightly fitted heating layer, a thermal insulation layer, and a windproof layer. Its preparation method is similar to that of Example 1, with the only difference being that the windproof layer does not contain volcanic rock fiber. The remaining materials and preparation methods are the same as those of Example 1.

[0055] Test Example

[0056] The windproof and warm functional fabrics obtained in Examples 1 to 3 and Comparative Examples 1 to 3 were respectively tested for thermal insulation performance (GB / T11048-2008) and windproof performance (reference standard GB / T 5453-1997). The results are shown in Table 1.

[0057] Table 1

[0058]

[0059] It can be seen from Table 1 that, compared with Example 1, when the thermal insulation layer does not add far-infrared functional fibers or uses unmodified aerogel fibers, the thermal insulation performance of the resulting fabric is significantly reduced; and when the volcanic rock fibers of the windproof layer are discarded, the windproof effect of the resulting fabric is significantly reduced.

[0060] The above is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A wind-resistant and warm-keeping functional fabric, characterized in that: The windproof and warm-keeping functional fabric comprises, from the inside to the outside, a heat-generating layer, a heat-insulating layer and a windproof layer that fit closely together; The heating layer is a silk layer with heating function, and the silk layer contains far-infrared functional fibers; The thermal insulation layer is a fiber layer with a heat insulation function, and the fiber layer contains modified aerogel fibers, and the modified aerogel fibers are aerogel fibers coated with polyvinyl alcohol; The windproof layer is a composite polyester fiber layer containing volcanic rock fibers; The silk layer is woven from a first yarn blended from 70wt% to 80wt% of silk, 10wt% to 20wt% of cashmere and 10wt% to 15wt% of far-infrared functional fiber; the thermal insulation layer is woven from a second yarn blended from 10wt% to 20wt% of modified aerogel fiber, 30wt% to 50wt% of cotton fiber and 40wt% to 60wt% of hemp fiber; the windproof layer is woven from a third yarn blended from 10wt% to 20wt% of volcanic rock fiber and 80wt% to 90wt% of polyester fiber, wherein the third yarn is a core-spun yarn, the volcanic rock fiber is the core yarn, and the polyester fiber is the sheath.

2. The windproof and warm-keeping functional fabric according to claim 1, characterized in that: The far-infrared functional fiber is a polyester fiber added with zirconium dioxide, titanium dioxide or graphene.

3. The windproof and warm-keeping functional fabric according to claim 1, characterized in that: The modified aerogel fiber is prepared by immersing the aerogel fiber in a polyvinyl alcohol aqueous solution at 95-100° C., ultrasonically permeating the polyvinyl alcohol evenly, taking out and drying the aerogel fiber, immersing the fiber in a crosslinker solution at 80-90° C., stirring the solution evenly, and drying the fiber to obtain the modified aerogel fiber.

4. The windproof and warm-keeping functional fabric according to claim 3, characterized in that: The aerogel fiber is selected from silica aerogel fiber or graphene aerogel fiber.

5. The windproof and warm-keeping functional fabric according to claim 1, characterized in that: The diameter of the volcanic rock fiber is 10-20 μm; the diameter of the core-spun yarn is 30-40 μm.

6. A method for preparing the wind-resistant and warm-keeping functional fabric according to claim 1, characterized in that: The first yarn is knitted into a heating layer of the fabric, and the second yarn and the third yarn are woven into a thermal insulation layer and a windproof layer respectively by a weaving method. The heating layer, the thermal insulation layer and the windproof layer are woven in sequence by a multi-layer weaving method to obtain a fabric which has a heating layer, a thermal insulation layer and a windproof layer from the inside to the outside.

7. The method for preparing the wind-resistant and heat-retaining functional fabric according to claim 6, wherein: The yarn count of the heating layer is 50s~70s, the yarn count of the heat-insulating layer is 20s~35s, and the yarn count of the windproof layer is 60s~70s.

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