Low-temperature dyeable elastic composite fiber filament

Abstract

The utility model belongs to the technical field of composite fiber filaments, and discloses a low-temperature dyeable elastic composite fiber filament which comprises a core layer composite fiber, a plurality of inner through holes are formed in the side wall of the core layer composite fiber in a penetrating mode, and a breathable composite fiber is spirally wound on the core layer composite fiber. Polyamide fibers are spirally wound on the breathable composite fibers, and a plurality of outer through holes are formed in the side walls of the polyamide fibers in a penetrating mode. In the wearing process of the textile made of the product, firstly, air moves to the breathable composite fibers from the outer vent holes, then penetrates through the breathable composite fibers to enter the inner vent holes, then moves to the breathable composite fibers from the inner vent holes, then moves into the outer vent holes from the breathable composite fibers and is exhausted; the air permeability of the composite fiber is ensured, so that the comfort of a textile made of the composite fiber during wearing is improved.

Description

Technical Field

[0001] This utility model relates to the field of composite fiber filament technology, and in particular to a low-temperature dyeable elastic composite fiber filament. Background Technology

[0002] Composite fibers are chemical fibers made by combining two or more different mixtures on the side of the same fiber. Composite fibers have a variety of properties, and breathability is one of them. Good breathability makes textiles made from composite fibers more comfortable to wear.

[0003] Chinese utility model patent with publication number CN222251196U discloses a special yarn of antibacterial polyester fiber with good elasticity, including a core layer, a first elastic fiber spaced apart outside the core layer, a filling layer between the core layer and the first elastic fiber, a heat insulation layer outside the filling layer, a second elastic fiber outside the heat insulation layer, an antibacterial layer outside the second elastic fiber, and an outer protective layer outside the antibacterial layer, wherein the outer protective layer is waterproof polyester fiber.

[0004] Existing composite fibers have an external protective layer outside the antibacterial layer. This external protective layer is made of waterproof polyester fiber. Since polyester fiber has poor breathability, it reduces the breathability of the composite fiber, thereby reducing the comfort of wearing textiles made of composite fibers. Utility Model Content

[0005] To address the aforementioned problems, this invention provides a low-temperature dyeable elastic composite fiber filament.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a low-temperature dyeable elastic composite fiber filament, comprising a core layer composite fiber, wherein multiple internal through holes are provided through the sidewall of the core layer composite fiber, a breathable composite fiber is spirally wound on the core layer composite fiber, a nylon fiber is spirally wound on the breathable composite fiber, and multiple external through holes are provided through the sidewall of the nylon fiber.

[0007] By adopting the above technical solution, the textiles made of this product allow air to first move from the outer vent to the breathable composite fiber during wear. Then, the air passes through the breathable composite fiber into the inner vent, then moves from the inner vent to the breathable composite fiber, and then moves from the breathable composite fiber to the outer vent and is discharged. Finally, the air is discharged from the outer vent, ensuring the breathability of the composite fiber and thus improving the comfort of the textiles made of composite fiber when worn.

[0008] Furthermore, banana fibers are spirally wound on the core composite fiber, which are misaligned with the breathable composite fiber. The banana fibers are attached to the inner side of the nylon fiber, and the cross-sectional diameter of the banana fibers is larger than that of the breathable composite fiber.

[0009] By adopting the above technical solution, during the gas movement process, because the banana fiber and nylon fiber are attached to each other on the inside, and the cross-sectional diameter of the banana fiber is larger than that of the breathable composite fiber, a cavity is formed between the nylon fiber and the breathable composite fiber, which reduces the resistance of air moving from the external opening to the breathable composite fiber and improves the breathability of the composite fiber.

[0010] Furthermore, the spiral winding direction of the banana fiber is the same as that of the breathable composite fiber, while the spiral winding direction of the banana fiber is opposite to that of the nylon fiber.

[0011] By adopting the above technical solution, the probability of the inner side of the nylon fiber and the outer side of the banana fiber sticking together during the process of nylon fiber winding around banana fiber is reduced.

[0012] Furthermore, the core layer composite fiber includes modified polyester fiber, which is a hollow structure with open ends, and the core layer composite fiber also includes modified kapok fiber disposed within the modified polyester fiber.

[0013] By adopting the above technical solution, during the movement of air through the internal holes, the kapok fibers can absorb moisture from the air, improving the hygroscopicity of the composite fibers. At the same time, the kapok fibers have good heat retention effect, thereby improving the heat retention effect of the composite fibers.

[0014] Furthermore, the breathable composite fiber includes inner breathable fibers and outer breathable fibers, with two sets of inner breathable fibers twisted together, and the outer breathable fibers wound around the two sets of inner breathable fibers.

[0015] By adopting the above technical solution, the overall tensile strength of the breathable composite fiber is improved.

[0016] Furthermore, the distance between adjacent curved sections of the two sets of internally breathable fibers is 50 nm.

[0017] Furthermore, the inner through hole and the outer through hole are positioned correspondingly, and the outer through hole is located between two adjacent spiral segments of the banana fiber.

[0018] By adopting the above technical solution, the impact of banana fiber on the normal breathability of composite fibers is reduced.

[0019] Furthermore, the surface of the nylon fiber is coated with a graphene layer.

[0020] By adopting the above technical solutions, graphene has good antibacterial and anti-wrinkle properties, reducing the probability of nylon fiber wrinkles and improving the antibacterial effect of nylon fiber. In addition, the high thermal conductivity of graphene enables it to quickly wick away moisture from the skin, reducing stuffiness and improving wearing comfort.

[0021] In summary, this utility model has the following beneficial effects:

[0022] In this application, during the wearing process of the textile made of this product, the gas first moves from the outer vent to the breathable composite fiber, then passes through the breathable composite fiber into the inner vent, then moves from the inner vent to the breathable composite fiber, and finally moves from the breathable composite fiber to the outer vent and is discharged, thus ensuring the breathability of the composite fiber and improving the comfort of the textile made of composite fiber when worn. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0024] Figure 2 This is a schematic diagram of the connection structure between the modified polyester fiber and the modified kapok fiber in an embodiment of this utility model;

[0025] Figure 3 This is a schematic diagram of an embodiment of the present invention used to highlight the connection structure between the inner and outer breathable fibers.

[0026] In the diagram: 1. Core layer composite fiber; 11. Modified polyester fiber; 12. Modified kapok fiber; 2. Inner perforation; 3. Breathable composite fiber; 31. Inner breathable fiber; 32. Outer breathable fiber; 4. Nylon fiber; 5. Outer perforation; 6. Banana fiber. Detailed Implementation

[0027] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0028] like Figure 1-3As shown in the embodiment, this application discloses a low-temperature dyeable elastic composite fiber filament, including a core composite fiber 1, a breathable composite fiber 3, and a nylon fiber 4. Multiple internal through holes 2 are provided through the sidewall of the core composite fiber 1. The breathable composite fiber 3 is spirally wound around the core composite fiber 1, and the nylon fiber 4 is spirally wound around the breathable composite fiber 3. In this embodiment, before the nylon fiber 4 is made, a low-melting-point thermoplastic fiber is uniformly mixed into the nylon fiber 4. After the nylon fiber 4 is wound around the breathable composite fiber 3, it is heated by a hot air dryer. When the low-melting-point thermoplastic fiber melts, the connection between two adjacent curved sections of the nylon fiber 4 fuses together. Finally, cooling the surface of the nylon fiber 4 solidifies the connection between the two adjacent curved sections. Multiple external through holes 5 are provided through the sidewall of the nylon fiber 4.

[0029] When the textiles made from this product are worn, the air first moves from the outer vent to the breathable composite fiber 3, then passes through the breathable composite fiber 3 into the inner vent, then moves from the inner vent to the breathable composite fiber 3, then moves from the breathable composite fiber 3 to the outer vent and is discharged, and finally is discharged from the outer vent. This ensures the breathability of the composite fiber, thereby improving the comfort of the textiles made from the composite fiber when worn.

[0030] A banana fiber 6, staggered from the breathable composite fiber 3, is spirally wound onto the core composite fiber 1. The banana fiber 6 is in contact with the inner side of the nylon fiber 4, and the cross-sectional diameter of the banana fiber 6 is larger than that of the breathable composite fiber 3. During gas movement, because the banana fiber 6 is in contact with the inner side of the nylon fiber 4 and the cross-sectional diameter of the banana fiber 6 is larger than that of the breathable composite fiber 3, a cavity is formed between the nylon fiber 4 and the breathable composite fiber 3. This reduces the resistance of air moving from the outer opening 5 to the breathable composite fiber 3, thus improving the breathability of the composite fiber.

[0031] The spiral winding direction of banana fiber 6 is the same as that of breathable composite fiber 3, while the spiral winding direction of banana fiber 6 is opposite to that of nylon fiber 4. This reduces the probability of adhesion between the inner side of nylon fiber 4 and the outer side of banana fiber 6 during the process of nylon fiber 4 winding around banana fiber 6.

[0032] The core composite fiber 1 includes modified polyester fiber 11 and modified kapok fiber 12. The modified polyester fiber 11 is a hollow structure with open ends. The modified polyester fiber 11 is polymerized by adding halogen flame retardants to polyester, and its hollow structure reduces the glass transition temperature of the polyester fiber, enabling dyeing of the polyester fiber at low temperatures. The modified kapok fiber 12 is disposed inside the modified polyester fiber 11. The modified kapok fiber 12 is formed by heat treatment of kapok fiber, thereby effectively improving the elasticity of kapok fiber.

[0033] During the movement of air through the inner hole 2, the kapok fibers can absorb moisture from the air, improving the moisture absorption of the composite fiber. At the same time, the kapok fibers have good heat retention effect, thereby improving the heat retention effect of the composite fiber.

[0034] The breathable composite fiber 3 includes inner breathable fibers 31 and outer breathable fibers 32. Two sets of inner breathable fibers 31 are twisted together. The outer breathable fibers 32 are wound around the two sets of inner breathable fibers 31, and the distance between adjacent bent sections of the two sets of inner breathable fibers 31 is 50 nm. This improves the overall tensile strength of the breathable composite fiber 3.

[0035] The inner through-hole 2 and the outer through-hole 5 are positioned correspondingly, with the outer through-hole 5 located between two adjacent spiral segments of the banana fiber 6. This reduces the impact on the normal air permeability of the composite fiber caused by the obstruction of the banana fiber 6.

[0036] The surface of nylon fiber 4 is coated with a graphene layer (not shown in the figure). The graphene layer is formed by immersing nylon fiber 4 in a solution containing graphene, so that the graphene is evenly distributed on nylon fiber 4. Then, the graphene is fixed on nylon fiber 4 by heating, which reduces the probability of graphene escaping from the surface of nylon fiber 4.

[0037] Graphene has excellent antibacterial and wrinkle-resistant properties, reducing the probability of wrinkles in nylon fiber 4 and improving its antibacterial effect. In addition, graphene's high thermal conductivity allows it to quickly wick away moisture from the skin, reducing stuffiness and improving wearing comfort.

[0038] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A low-temperature dyeable elastic composite fiber filament, characterized in that: It includes a core layer composite fiber (1), the side wall of which is provided with multiple internal through holes (2), the core layer composite fiber (1) is spirally wound with a breathable composite fiber (3), the breathable composite fiber (3) is spirally wound with a nylon fiber (4), and the side wall of the nylon fiber (4) is provided with multiple external through holes (5).

2. The low-temperature dyeable elastic composite fiber filament according to claim 1, characterized in that: The core composite fiber (1) is spirally wound with banana fiber (6) which is misaligned with the breathable composite fiber (3). The banana fiber (6) is attached to the inner side of the nylon fiber (4). The cross-sectional diameter of the banana fiber (6) is larger than that of the breathable composite fiber (3).

3. The low-temperature dyeable elastic composite fiber filament according to claim 2, characterized in that: The spiral winding direction of the banana fiber (6) is the same as that of the breathable composite fiber (3), and the spiral winding direction of the banana fiber (6) is opposite to that of the nylon fiber (4).

4. The low-temperature dyeable elastic composite fiber filament according to claim 1, characterized in that: The core layer composite fiber (1) includes modified polyester fiber (11), which is a hollow structure with open ends. The core layer composite fiber (1) also includes modified kapok fiber (12) disposed within the modified polyester fiber (11).

5. The low-temperature dyeable elastic composite fiber filament according to claim 1, characterized in that: The breathable composite fiber (3) includes an inner breathable fiber (31) and an outer breathable fiber (32). The inner breathable fiber (31) is provided in two sets and twisted together. The outer breathable fiber (32) is wound around the two sets of inner breathable fibers (31).

6. The low-temperature dyeable elastic composite fiber filament according to claim 5, characterized in that: The distance between adjacent curved sections of the two sets of internally breathable fibers (31) is 50 nm.

7. The low-temperature dyeable elastic composite fiber filament according to claim 2, characterized in that: The inner through hole (2) and the outer through hole (5) are positioned correspondingly, and the outer through hole (5) is located between two adjacent spiral segments of the banana fiber (6).

8. The low-temperature dyeable elastic composite fiber filament according to claim 1, characterized in that: The surface of the nylon fiber (4) is coated with a graphene layer.

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