Manufacturing method of feather fiber and novel polyester compounded antibacterial warm-keeping lining

Abstract

The invention discloses a manufacturing method of a feather fiber and novel polyester compounded antibacterial warm-keeping lining. The manufacturing method comprises the following steps: preprocessing feather fibers, preparing novel polyester, carrying out composite spinning, and forming a fabric, wherein composite fibers are prepared into a lining base material through a weaving or non-weaving process; and after-finishing: carrying out water repellent finishing and heat setting treatment on the base material. According to the manufacturing method of the feather fiber and novel polyester compounded antibacterial warm-keeping lining, antibacterial modified monomers such as the quaternary ammonium salt compound, the nano-silver compound or the halamine compound are added in the preparation process of the novel polyester, so that the polyester has lasting antibacterial ability. Compared with a traditional after-finishing mode of adding an antibacterial agent, the copolymerization modification method has the advantages that antibacterial components are uniformly distributed in polyester molecular chains and are not easy to fall off, the antibacterial effect is more lasting, and the washability is remarkably improved. After being washed for multiple times, the material can still keep a high antibacterial rate, bacteria breeding is effectively inhibited, and wearing health is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of textile fabric manufacturing technology, and in particular to a method for manufacturing an antibacterial and warm lining made of feather fiber and a novel polyester composite. Background Technology

[0002] Traditional thermal insulation materials are mainly divided into two categories: natural fibers and synthetic fibers. Natural fibers, such as cotton and wool, while possessing excellent warmth and comfort, are prone to bacterial growth and mold, especially in humid environments where bacteria multiply rapidly. This not only affects the health of the wearer but also reduces the material's lifespan. Furthermore, the antibacterial properties of natural fibers often rely on the addition of antibacterial agents during finishing processes; however, these antibacterial agents have poor wash resistance, and their antibacterial effect decreases significantly after multiple washes.

[0003] Chemical fiber thermal insulation materials, such as ordinary polyester fiber, while possessing good strength and washability, typically rely on the material's thickness and loft for their warmth retention, resulting in heavy fabrics and less comfortable wear. Furthermore, ordinary polyester fiber itself lacks antibacterial properties, requiring the addition of antibacterial agents or compounding with other antibacterial materials to impart these properties. However, traditional compounding processes suffer from issues such as loose fiber bonding and easy shedding of antibacterial components, affecting the material's long-term antibacterial effect.

[0004] In recent years, as consumers have become increasingly focused on health and comfort, the market demand for lining materials that combine antibacterial and warmth-retaining functions has been growing. Although some studies have attempted to combine natural and chemical fibers, or to impart antibacterial properties to fibers through chemical modification, these methods still have many shortcomings. For example, simply mixing natural and chemical fibers makes it difficult to achieve synergistic optimization of their properties, and the weak bonding between fibers can easily lead to delamination and pilling. While chemical modification can improve the antibacterial properties of fibers, it may alter the original structure of the fibers, affecting their warmth and comfort.

[0005] Furthermore, existing technologies also have limitations in expanding the functionality of materials. For example, far-infrared technology, which can promote blood circulation and enhance warmth retention, has not yet been widely used in antibacterial and thermal insulation lining materials. At the same time, the finishing processes of traditional thermal insulation lining materials, such as water-repellent finishing and heat setting treatment, still need optimization in terms of processing effects and process parameter control to further improve the material's performance and stability.

[0006] In summary, existing antibacterial and thermal insulation lining materials have many shortcomings in terms of performance, manufacturing process, and functional expansion, making it difficult to meet the market demand for high-performance, multi-functional thermal insulation lining materials.

[0007] Therefore, it is necessary to provide a new method for manufacturing an antibacterial and warm lining composed of feather fibers and novel polyester to solve the above-mentioned technical problems. Summary of the Invention

[0008] To solve the above-mentioned technical problems, the present invention provides a method for manufacturing an antibacterial and warm lining composed of feather fibers and a novel polyester composite.

[0009] This invention provides a method for manufacturing an antibacterial and warm lining composed of feather fibers and a novel polyester composite, comprising the following steps: S1: Feather fiber pretreatment: After cleaning and disinfecting, poultry feathers are fluffed up. S2: Preparation of novel polyester: antibacterial polyester is formed by copolymerizing terephthalic acid, ethylene glycol and antibacterial modified monomers; S3: Composite spinning: Pretreated feather fibers are mixed with antibacterial polyester in a certain proportion and then formed into composite fibers through melt co-spinning; S4: Fabric forming: The composite fibers are woven or nonwoven into the inner substrate; S5: Finishing: Water-repellent finishing and heat setting treatment of the substrate.

[0010] Preferably, the fluffing treatment in step S1 includes steam treatment at 80-120°C for 30-60 minutes, followed by mechanical dispersing device to break it down into monofilament fibers.

[0011] Preferably, the antibacterial modifying monomer in step S2 is at least one of quaternary ammonium salt compound, nano silver compound or haloamine compound, and the amount added is 1.5-3.5% of the total weight of polyester.

[0012] Preferably, in step S3, the weight ratio of the feather fiber to the antibacterial polyester is 1:9 to 3:7, and the melt co-spinning temperature is 240-260℃.

[0013] Preferably, step S3 further includes adding far-infrared ceramic powder to the composite fiber, with the amount added being 2-5% of the total weight of the fiber.

[0014] Preferably, the weaving process in step S4 adopts a double-knitted structure, wherein a feather fiber enriched layer is formed on the surface in contact with the skin, and a polyester enriched layer is formed on the outer layer.

[0015] Preferably, the water-repellent finishing in step S5 uses a fluorinated water-repellent agent with a treatment concentration of 3-8% owf, a heat setting temperature of 150-180℃, and a time of 30-90 seconds.

[0016] Compared with related technologies, the method for manufacturing an antibacterial and warm lining composed of feather fibers and novel polyester provided by the present invention has the following beneficial effects: This invention provides a method for manufacturing an antibacterial and warm lining composite of feather fibers and a novel polyester. Regarding antibacterial properties, this method adds antibacterial modifying monomers such as quaternary ammonium salt compounds, nano-silver compounds, or haloamine compounds during the preparation of the novel polyester, giving the polyester itself a long-lasting antibacterial ability. Compared with traditional finishing methods that add antibacterial agents, this copolymerization modification method ensures that the antibacterial components are evenly distributed within the polyester molecular chain, making them less prone to shedding, resulting in a longer-lasting antibacterial effect and significantly improved wash resistance. Even after multiple washes, the material maintains a high antibacterial rate, effectively inhibiting bacterial growth and ensuring the wearer's health.

[0017] Secondly, in terms of warmth retention, feather fibers possess a natural hollow structure and excellent heat retention. Pre-treated feather fibers have even higher loft, effectively trapping air and forming a good insulating layer. By combining this with antibacterial polyester composite spinning and a double-knitted structure design, the inner material forms a feather fiber-rich layer on the skin-contact surface, directly adhering to the skin and providing a soft, comfortable feel and excellent warmth. The outer layer forms a polyester-rich layer, enhancing the material's strength and abrasion resistance while preventing feather fiber exposure and improving durability. This structural design and material combination achieves a perfect balance between warmth and comfort.

[0018] In addition, this method also adds far-infrared ceramic powder to the composite fiber. The far-infrared ceramic powder can absorb the heat emitted by the human body and radiate far-infrared rays, promote blood circulation, enhance metabolism, and further improve the warmth retention effect. Especially in cold environments, it can make the wearer feel warmth for a longer period of time.

[0019] In terms of process, this method optimizes the process parameters of each step, such as the fluffing treatment conditions of feather fibers, melt spinning temperature, and mixing ratio, to ensure a good bond between feather fibers and antibacterial polyester, thereby improving the quality and stability of the composite fiber. Simultaneously, appropriate finishing processes, such as the use of fluorinated water-repellent agents, give the material excellent water-repellent properties, effectively resisting rain and light snow. Heat setting further stabilizes the material's dimensions and shape, improving its smoothness and wrinkle resistance.

[0020] The antibacterial and warm lining material prepared by the manufacturing method of the present invention has excellent antibacterial properties, good warmth retention, comfortable wearing experience, and multi-functional integration. At the same time, the process is stable and reliable, and the product quality is high. Attached Figure Description

[0021] Figure 1 The flowchart illustrates the manufacturing method of the antibacterial and warm lining made of feather fiber and novel polyester, as provided by this invention. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Example 1 In the specific implementation process, such as Figure 1 As shown, a method for manufacturing an antibacterial and warm lining composed of feather fibers and a novel polyester composite includes the following steps: Feather fiber pretreatment: Take 500g of duck feathers and perform the following operations in sequence: Cleaning: Use a neutral detergent to clean and stir for 20 minutes at 40°C to remove surface impurities; Disinfection: Soak in 80℃ hot water for 30 minutes; Fluffing treatment: The disinfected feathers are placed in a steam treatment device and steamed at 100°C for 45 minutes. Then, they are broken down into monofilaments by a mechanical dispersing device (speed 2000 rpm), with the fiber length controlled at 3-8 mm.

[0024] Preparation of novel polyesters: Weigh out 68 parts of terephthalic acid (PTA), 32 parts of ethylene glycol (EG), and antibacterial modifying monomer (quaternary ammonium salt compound, added at 2.5% of the total weight of polyester) by weight, carry out esterification reaction at 220℃ for 3 hours, and then raise the temperature to 280℃ for polycondensation reaction for 2 hours to obtain antibacterial polyester chips.

[0025] Composite spinning: Mixing ratio: Mix pretreated feather fibers with antibacterial polyester at a weight ratio of 2:8; Adding far-infrared ceramic powder: Add 3% of the total fiber weight of far-infrared ceramic powder (particle size 1-5μm) to the mixture. Melt co-spinning: Composite fibers are obtained by melt co-spinning at 250°C using a twin-screw extruder at a spinning speed of 1200 m / min.

[0026] Fabric forming: The inner lining substrate is woven using a double-sided knitting machine. Skin contact surface: By adjusting the yarn feeding ratio, the feather fiber enrichment layer accounts for 60%; Outer layer: Polyester enriched layer accounts for 70%; Fabric weight: 180g / m² 2 .

[0027] Post-editing: Water-repellent finishing: Impregnate the substrate with a fluorinated water-repellent agent (5% owf concentration), perform two impregnations and two paddings, and then dry. Heat setting: Heat set at 160℃ for 60 seconds, and then cool to obtain the finished product.

[0028] Performance testing: Antibacterial properties (ASTM E2149): 99.2% inhibition rate against Staphylococcus aureus; Thermal insulation performance (YG606D flat panel heater): Thermal resistance value 0.28m. 2 K / W; Water repellency (AATCC22): Spray rating 4.

[0029] Example 2 Feather fiber pretreatment: Take 800g of goose feathers and perform the following operations in sequence: Cleaning: Use an alkaline detergent and stir for 15 minutes at 50°C; Disinfection: Ozone disinfection (concentration 5ppm) for 20 minutes; Fluffing treatment: Steam treatment at 80℃ for 60 minutes, mechanical dispersing at 1800rpm, fiber length 2-6mm.

[0030] Preparation of novel polyesters: Weigh 70 parts PTA, 30 parts EG, and 1.5% antibacterial modified monomer (nano silver compound, added amount) according to the mass ratio, and perform esterification reaction at 230℃ for 2.5 hours and polycondensation reaction for 1.5 hours to obtain antibacterial polyester.

[0031] Composite spinning: Mixing ratio: Feather fiber and antibacterial polyester are mixed at a ratio of 1:9; Far-infrared ceramic powder addition: 2%; Melt spinning temperature: 240℃, spinning speed: 1000m / min.

[0032] Fabric forming: Nonwoven process (hydroentanglement): Feather fiber enrichment layer: A dense structure is formed by high-pressure water jet (pressure 120 bar); Polyester enrichment layer: Strength is enhanced by hot rolling (temperature 140℃); Fabric weight: 150g / m² 2 .

[0033] Post-editing: Water repellent concentration: 3% owf; Heat setting: Treat at 150℃ for 90 seconds.

[0034] Performance testing: Antibacterial rate (E. coli): 98.5%; Thermal resistance: 0.25m 2 K / W; Sprayer rating: Level 3.

[0035] Example 3 Feather fiber pretreatment: Take 300g of chicken feathers and perform the following operations in sequence: Cleaning: Ultrasonic cleaning (frequency 40kHz) for 10 minutes; Disinfection: Soak in 75% ethanol for 15 minutes; Fluffing treatment: Steam treatment at 120℃ for 30 minutes, followed by mechanical agitation at 2200 rpm.

[0036] Preparation of novel polyesters: The PTA / EG was copolymerized using a halogenated amine compound (3.5% addition), with an esterification temperature of 210°C and a polycondensation temperature of 270°C.

[0037] Composite spinning: Mixing ratio: 3:7; Far-infrared ceramic powder: 5%; Spinning temperature: 260℃.

[0038] Fabric forming: Double-knitted structure: Feather fiber enrichment layer: made of 32S yarn; Polyester enrichment layer: made of 50D polyester filament; Weight: 200g / m 2 .

[0039] Post-editing: Water repellent concentration: 8% owf; Heat setting: Treat at 180℃ for 30 seconds.

[0040] Performance testing: Antibacterial rate (Candida albicans): 99.5%; Thermal resistance: 0.32m 2 K / W; Sprayer rating: Level 5.

[0041] Example 4 The steps are adjusted based on Example 1: No far-infrared ceramic powder added; It adopts a single-knit structure.

[0042] Performance testing: The thermal resistance decreased to 0.22m. 2 K / W; Antibacterial rate: 97.8%.

[0043] This invention provides a method for manufacturing an antibacterial and warm lining composite of feather fibers and a novel polyester. Regarding antibacterial properties, this method adds antibacterial modifying monomers such as quaternary ammonium salt compounds, nano-silver compounds, or haloamine compounds during the preparation of the novel polyester, giving the polyester itself a long-lasting antibacterial ability. Compared with traditional finishing methods that add antibacterial agents, this copolymerization modification method ensures that the antibacterial components are evenly distributed within the polyester molecular chain, making them less prone to shedding, resulting in a longer-lasting antibacterial effect and significantly improved wash resistance. Even after multiple washes, the material maintains a high antibacterial rate, effectively inhibiting bacterial growth and ensuring the wearer's health.

[0044] Secondly, in terms of warmth retention, feather fibers possess a natural hollow structure and excellent heat retention. Pre-treated feather fibers have even higher loft, effectively trapping air and forming a good insulating layer. By combining this with antibacterial polyester composite spinning and a double-knitted structure design, the inner material forms a feather fiber-rich layer on the skin-contact surface, directly adhering to the skin and providing a soft, comfortable feel and excellent warmth. The outer layer forms a polyester-rich layer, enhancing the material's strength and abrasion resistance while preventing feather fiber exposure and improving durability. This structural design and material combination achieves a perfect balance between warmth and comfort.

[0045] In addition, this method also adds far-infrared ceramic powder to the composite fiber. The far-infrared ceramic powder can absorb the heat emitted by the human body and radiate far-infrared rays, promote blood circulation, enhance metabolism, and further improve the warmth retention effect. Especially in cold environments, it can make the wearer feel warmth for a longer period of time.

[0046] In terms of process, this method optimizes the process parameters of each step, such as the fluffing treatment conditions of feather fibers, melt spinning temperature, and mixing ratio, to ensure a good bond between feather fibers and antibacterial polyester, thereby improving the quality and stability of the composite fiber. Simultaneously, appropriate finishing processes, such as the use of fluorinated water-repellent agents, give the material excellent water-repellent properties, effectively resisting rain and light snow. Heat setting further stabilizes the material's dimensions and shape, improving its smoothness and wrinkle resistance.

[0047] The antibacterial and thermal insulation lining material prepared by the manufacturing method of this invention has excellent antibacterial properties, good thermal insulation effect, comfortable wearing experience, and multi-functional integration. Furthermore, the process is stable and reliable, resulting in high product quality. The above descriptions are merely embodiments of this invention and do not limit the patent scope of this invention. Any equivalent structural or procedural transformations made based on the description and drawings of this invention, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this invention.

Claims

1. A method for manufacturing an antibacterial and warm lining composed of feather fibers and a novel polyester, characterized in that, Includes the following steps: S1: Feather fiber pretreatment: After cleaning and disinfecting, poultry feathers are fluffed up. S2: Preparation of novel polyester: antibacterial polyester is formed by copolymerizing terephthalic acid, ethylene glycol and antibacterial modified monomers; S3: Composite spinning: Pretreated feather fibers are mixed with antibacterial polyester in a certain proportion and then formed into composite fibers through melt co-spinning; S4: Fabric forming: The composite fibers are woven or nonwoven into the inner substrate; S5: Finishing: Water-repellent finishing and heat setting treatment of the substrate.

2. The method for manufacturing an antibacterial and warm lining composed of feather fiber and novel polyester according to claim 1, characterized in that: The fluffing treatment in step S1 includes steam treatment at 80-120°C for 30-60 minutes, followed by mechanical dispersing device to break it down into monofilament fibers.

3. The method for manufacturing an antibacterial and warm lining composed of feather fiber and novel polyester according to claim 1, characterized in that: The antibacterial modifying monomer in step S2 is at least one of quaternary ammonium salt compound, nano silver compound or haloamine compound, and the amount added is 1.5-3.5% of the total weight of polyester.

4. The method for manufacturing an antibacterial and warm lining composed of feather fiber and novel polyester according to claim 1, characterized in that: In step S3, the weight ratio of feather fiber to antibacterial polyester is 1:9 to 3:7, and the melt co-spinning temperature is 240-260℃.

5. The method for manufacturing an antibacterial and warm lining composed of feather fiber and novel polyester according to claim 1, characterized in that: Step S3 further includes adding far-infrared ceramic powder to the composite fiber, with the amount added being 2-5% of the total weight of the fiber.

6. The method for manufacturing an antibacterial and warm lining composed of feather fiber and novel polyester according to claim 1, characterized in that: The weaving process in step S4 adopts a double-sided knitting structure, wherein a feather fiber enriched layer is formed on the surface in contact with the skin, and a polyester enriched layer is formed on the outer layer.

7. The method for manufacturing an antibacterial and warm lining composed of feather fiber and novel polyester according to claim 1, characterized in that: The water-repellent finishing in step S5 uses a fluorinated water-repellent agent with a treatment concentration of 3-8% owf, a heat setting temperature of 150-180℃, and a time of 30-90 seconds.

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