A method for manufacturing a warm-keeping garment with loose contour and human body fit

Abstract

The application relates to the technical field of garment fabrics, and discloses a warm-keeping garment manufacturing method considering loose contour and human body fitting, which adds self-synthesized radiation reduction composite conductive filler in the elastic fabric belt, effectively solves the common problem that static electricity is easily generated in traditional cotton clothes close to the sweater, significantly improves wearing comfort, simultaneously solves the industry pain point that traditional large-contour clothes are difficult to be compatible with loose comfort and close fitting warm-keeping, and realizes multiple functions of warm-keeping and antibacterial and bacteriostatic, and significantly improves the comprehensive wearing performance and long-term use durability of the clothes; the radiation reduction composite conductive filler not only serves as a conductive functional component, but also can play a role of mechanical enhancement, induces PA6 molecular chains to be oriented and crystallized along the fiber axial direction, improves the crystallinity and orientation degree of the fiber, hinders the slipping and rearrangement of the PA6 molecular chains, and improves the anti-relaxation ability and mechanical durability of the elastic fabric belt.

Description

Technical Field

[0001] This invention relates to the field of clothing fabric technology, specifically to a method for manufacturing warm clothing that balances a loose silhouette with a close fit to the human body. Background Technology

[0002] As consumers' demands for diverse clothing aesthetics continue to rise, oversized clothing has consistently generated buzz on fashion runways and in everyday wear in recent years, thanks to its casual and stylish appearance and comfortable fit. Down jackets, as a core category for winter warmth, have also been profoundly influenced by this trend. Oversized down jackets, breaking away from the traditional stiffness and bulkiness of down jackets, offer both warmth and style, making them popular among consumers.

[0003] However, oversized clothing presents a significant technical contradiction in terms of its warmth retention. While its loose fit provides ample freedom of movement and an internal air insulation layer, it also introduces a series of shortcomings in warmth retention. The hem area is prone to air convection, leading to substantial heat loss. Oversized clothing typically has a looser hem, which does not naturally conform to the waist and abdomen when worn. During walking or activity, the hem's movement easily creates air convection channels, allowing cold air from the outside to enter and warm air from the inside to escape, resulting in significant heat loss from the legs and waist, severely weakening the overall warmth retention of the garment.

[0004] In addition, the lining of traditional down jackets and cotton-padded jackets rubs against the inner layers of clothing for a long time, which can easily accumulate static electricity in the dry winter environment. This can cause problems such as clothing adhering to the skin and static discharge when putting on or taking off the clothes, which not only reduces the comfort of wearing them, but also makes daily wear and care inconvenient. Summary of the Invention

[0005] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides a method for manufacturing thermal clothing that balances a loose silhouette with a close fit to the human body. By adding a self-synthesized radiation reduction composite conductive filler to elastic webbing, it effectively overcomes the common problem of static electricity generation in traditional cotton clothing when worn close to a sweater, significantly improving wearing comfort. It also solves the industry pain point of the difficulty in reconciling the loose comfort of traditional oversized clothing with close-fitting warmth, and achieves multiple functions such as warmth retention and antibacterial properties, significantly improving the overall wearing performance and long-term durability of the clothing.

[0006] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: A method for manufacturing clothing that balances a loose silhouette with a close-fitting and warm fit includes the following steps: Step 1: Use a large-scale pattern with a chest circumference 30-50cm larger than the net chest circumference of the human body. Cut out the outer fabric and the middle lining pieces, sew them together to form the down filling cavity, fill it with down and then seal it to obtain the large-scale down jacket shell.

[0007] Step 2: Fix the heating vest containing the heating lining and heating cotton to the inner layer of the down jacket. The bottom of the heating vest extends as a whole to form a ring-shaped hem lining substrate. Sew a ring-shaped hem strap on the inner surface of the hem lining substrate facing the human body. Arrange 2-6 elastic webbing strips at intervals along the circumference of the hem.

[0008] Step 3: Position the elastic webbing as the innermost layer of the garment, directly contacting the skin. The elastic webbing's contraction force helps the hem conform to the waist and abdomen, preventing air convection and heat loss at the hem. After assembly, ironing, and shaping, a garment that balances a loose silhouette with a close fit and warmth is obtained. Further, the elastic webbing is prepared through the following steps: S1. Using graphene oxide as a substrate, polyetherimide as a surface modifier and morphology regulator, and zinc nitrate hexahydrate as a zinc source, zinc oxide crystal nuclei are generated under hydrothermal conditions and directionally grown into needle-like structures to obtain graphene oxide nano-zinc needles.

[0009] S2. Polyaniline particles are generated through the polymerization reaction of aniline monomers. The polyaniline particles are dissolved in water and mixed with a dispersion of graphene oxide zinc nano needles. Under strong alkaline conditions, the polyaniline molecules are uniformly coated on the surface of the graphene oxide zinc nano needles through electrostatic interactions and hydrogen bonds, resulting in a composite conductive filler.

[0010] S3. Under a nitrogen inert atmosphere, 60 The gamma rays generated by Co cause the aqueous solution to undergo radiation decomposition, which can efficiently reduce the oxygen-containing functional groups remaining on the surface of the composite conductive filler, thus obtaining the radiation-reduced composite conductive filler.

[0011] S4. PA6 chips, styrene-maleic anhydride copolymer, radiation reduction composite conductive filler, polyethylene wax and butylated hydroxyanisole are mixed and granulated, and then melt-spun to obtain multifunctional PA6 fibers.

[0012] S5. Modified PA6 fiber, polypropylene fiber and bamboo charcoal fiber are twisted together to obtain a mixed-twist yarn. Spandex fiber is used as the core yarn, and the mixed-twist yarn is used as the outer covering yarn to double-cover the core yarn to obtain elastic yarn. The elastic yarn is used as the weft yarn and the mixed-twist yarn is used as the warp yarn to weave a webbing fabric. The fabric is heat-set at 180-200℃ for 30-60s and naturally shrank for 12-24h to obtain elastic webbing.

[0013] Furthermore, the mass ratio of modified PA6 fiber, polypropylene fiber, bamboo charcoal fiber and spandex fiber is 35-50:15-25:12-18:4-8.

[0014] Furthermore, the mass ratio of PA6 chips, styrene-maleic anhydride copolymer, radiation reduction composite conductive filler, polyethylene wax and butylated hydroxyanisole is 90-100:1-2:6-7:0.7-0.9:0.5-0.7.

[0015] Furthermore, the specific preparation steps of graphene oxide zinc nanoneedles are as follows: Graphene oxide, a 2mM polyetherimide solution, and a 50mM ammonia solution were added to a reaction vessel and stirred for 10-12 minutes at 20-25℃ and 500-600 rpm. Then, a 50mM zinc nitrate hexahydrate solution, a 50mM hexamethylenetetramine solution, and deionized water were added to the reaction vessel, and stirring was continued for 10-12 minutes. The mixture was then transferred to a stainless steel reaction vessel lined with polytetrafluoroethylene and heated to 100-110℃ for 12-14 hours. The product was washed 2-4 times with deionized water and ethanol, respectively, and then vacuum dried at 60-70℃ for 1-2 hours to obtain graphene oxide zinc nanoneedles.

[0016] Furthermore, the ratio of graphene oxide, polyetherimide solution, ammonia solution, zinc nitrate hexahydrate solution, hexamethylenetetramine solution, and deionized water is 10-15g: 500-600mL: 20-30mL: 12-15g: 5.3-7g: 750-800mL.

[0017] Furthermore, the specific preparation steps for polyaniline particles are as follows: Aniline and deionized water are added to a reaction vessel and stirred for 10-12 minutes at 20-25°C and 500-600 r / min. Then acrylic acid is added and stirring is continued for 30-40 minutes. Ammonium persulfate is then added and the mixture is allowed to stand at room temperature for 12-14 hours. The mixture is then centrifuged at 5000-6000 r / min for 3-5 minutes, and the lower precipitate is collected to obtain polyaniline particles.

[0018] Furthermore, the ratio of aniline, deionized water, acrylic acid, and ammonium persulfate is 4.7-5.6g: 450-500mL: 3-5g: 11.4-13.7g.

[0019] Furthermore, the specific preparation steps of the composite conductive filler are as follows: Graphene oxide nano-zinc needles were dispersed in deionized water, and then polyaniline solution was added. The pH value was adjusted to 11-12 with 2-4 mol / L NaOH solution. The mixture was placed in an ultrasonic cleaner for 2-4 hours. After the ultrasonic treatment, the product precipitated as flocculent precipitate at the bottom of the sample bottle. The upper aqueous solution was aspirated with a dropper, and the precipitate was then placed in a drying oven at 50-60℃ for 12-14 hours to obtain the composite conductive filler.

[0020] Furthermore, the ratio of graphene oxide nano-zinc needles, deionized water, and polyaniline solution is 10-12g: 200-300mL: 150-160mL.

[0021] Furthermore, the specific preparation steps of the radiation reduction composite conductive filler are as follows: Add the composite conductive filler and deionized water to the reactor, stir for 10-12 minutes at 20-25℃ and 500-600 r / min, adjust the pH to 11-12 with 2-4 mol / L NaOH solution, and place under a nitrogen atmosphere. 60 Irradiated in a Co radioactive source for 24-26 hours at a dose rate of 60-70 Gy / min, centrifuged at 5000-6000 r / min for 3-5 minutes, and the lower precipitate was collected to obtain the radiation-reduced composite conductive filler.

[0022] Furthermore, the ratio of composite conductive filler to deionized water is 5-6g:120-130mL.

[0023] (III) Beneficial Effects Compared with existing technologies, this invention provides a method for manufacturing thermal clothing that balances a loose silhouette with a close fit to the human body, and has the following beneficial effects: 1. This invention effectively overcomes the common problem of static electricity generated when traditional cotton clothing is tightly attached to a sweater by adding a self-synthesized radiation reduction composite conductive filler to the elastic webbing, significantly improving wearing comfort. At the same time, it solves the industry pain point that traditional oversized clothing is difficult to reconcile with loose comfort and close-fitting warmth, and achieves multiple functions such as warmth and antibacterial properties, significantly improving the overall wearing performance and long-term durability of the clothing.

[0024] 2. This invention constructs a composite conductive filler system with graphene oxide and zinc oxide nanoneedles as the core and polyaniline as the shell, and uses gamma-ray radiation reduction technology to modify it, efficiently removing residual oxygen-containing functional groups on the surface of graphene oxide, while optimizing the conjugated structure and doping state of polyaniline molecules, significantly improving the electron transport efficiency and far-infrared radiation heat preservation of the composite material, and avoiding static charge accumulation. In addition, the synergistic effect of graphene oxide and zinc oxide nanoneedles also endows the material with excellent antibacterial and bacteriostatic capabilities and far-infrared radiation capabilities. More importantly, the unique needle-like structure of the radiation reduction composite conductive filler can avoid the problems of easy slippage, easy breakage of conductive network, and rapid performance degradation after long-term stretching of traditional spherical and sheet-like conductive fillers in polymer matrix.

[0025] 3. The radiation reduction composite conductive filler of the present invention not only serves as a conductive functional component, but also plays a role in mechanical reinforcement, inducing PA6 molecular chains to crystallize along the fiber axis, improving the crystallinity and orientation of the fiber, hindering the slippage and rearrangement of PA6 molecular chains, and enhancing the elastic webbing's resistance to relaxation and mechanical durability.

[0026] 4. This invention employs a large silhouette significantly larger than the net chest circumference of the human body. This satisfies consumers' pursuit of fashionable appearance while simultaneously creating an effective static insulation barrier through ample internal air layers, ensuring comfort and freedom of movement. Addressing the critical issue of significant heat loss due to air convection at the hem of large-silhouette garments, this invention designs a locally fitted structure with a hem strap and spaced-out, free-flowing mid-section elastic webbing. A circular hem strap is sewn onto the inside of the hem, and multiple elastic webbings are spaced out circumferentially, with only the ends of the webbing fixed to the hem strap, leaving the midsection free. This structure ensures that the elastic webbing's contraction force acts only in a localized area, preserving the overall loose silhouette of the garment while its long-term anti-sag properties evenly and tightly hug the waist and abdomen, fundamentally blocking the convection channels between hot and cold air at the hem and significantly enhancing the garment's warmth retention in low-temperature environments. Detailed Implementation

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0029] Example 1: A method for manufacturing clothing that balances a loose silhouette with a close fit and warmth, comprising the following steps: S1: 10g of graphene oxide, 500mL of 2mM polyetherimide solution, and 20mL of 50mM ammonia solution were added to a reaction vessel and stirred for 10min at 20℃ and 500r / min. Then, 12g of 50mM zinc nitrate hexahydrate solution, 5.3g of 50mM hexamethylenetetramine solution, and 750mL of deionized water were added to the reaction vessel and stirred for another 10min. The mixture was then transferred to a stainless steel reaction vessel lined with polytetrafluoroethylene and heated to 100℃ for 12h. The product was washed twice with deionized water and ethanol, respectively, and dried under vacuum at 60℃ for 1h to obtain graphene oxide zinc nanoneedles.

[0030] S2: Add 4.7g aniline and 450mL deionized water to a reaction vessel and stir for 10min at 20℃ and 500r / min. Then add 3g acrylic acid and continue stirring for 30min. Add 11.4g ammonium persulfate and let stand at room temperature for 12h. Centrifuge at 5000r / min for 3min and collect the lower precipitate to obtain polyaniline particles. Dissolve 10g polyaniline particles in 150mL deionized water to obtain a polyaniline solution. Disperse 10g graphene oxide nano-zinc needles in 200mL deionized water and add 150mL polyaniline solution. Adjust the pH to 11 with 2mol / L NaOH solution and place in an ultrasonic cleaner for 2h. After ultrasonic treatment, the product precipitates as flocculent sediment at the bottom of the sample bottle. Use a dropper to absorb the upper aqueous solution and then place the precipitate in a 50℃ drying oven for 12h to obtain a composite conductive filler.

[0031] S3: Add 5g of composite conductive filler and 120mL of deionized water to the reactor, stir for 10min at 20℃ and 500r / min, adjust the pH to 11 with 2mol / L NaOH solution, and place under a nitrogen atmosphere. 60 Irradiated for 24 hours in a Co radioactive source radiation field at a dose rate of 60 Gy / min, centrifuged at 5000 r / min for 3 min, and collected the lower precipitate to obtain the radiation reduction composite conductive filler.

[0032] S4: 90g of PA6 chips, 1g of styrene-maleic anhydride copolymer, 6g of radiation reduction composite conductive filler, 0.7g of polyethylene wax and 0.5g of butylated hydroxyanisole were mixed and granulated, and then melt-spun at 255℃ to obtain multifunctional PA6 fibers.

[0033] S5: 35g of modified PA6 fiber, 15g of polypropylene fiber and 12g of bamboo charcoal fiber are twisted together to make a mixed-twist yarn. 4g of spandex fiber is used as the core yarn, and the mixed-twist yarn is used as the outer covering yarn to double-cover the core yarn to obtain elastic yarn. The elastic yarn is used as the weft yarn and the mixed-twist yarn is used as the warp yarn to weave a webbing fabric. The fabric is heat-set at 180℃ for 30s and naturally shrunken for 12h to obtain an elastic webbing.

[0034] S6: The large-scale pattern with a chest circumference 30cm larger than the net chest circumference of the human body is adopted. The outer fabric and the middle lining are cut separately, sewn together to form a down-filled cavity, and then sealed after filling with down to obtain the large-scale down jacket shell.

[0035] S7: A heated vest containing a heated lining and heated cotton is fixed to the inner layer of the down jacket shell. The bottom of the heated vest extends integrally to form a ring-shaped hem lining substrate. A ring-shaped hem strap is sewn on the inner surface of the hem lining substrate facing the human body. Two elastic webbings are arranged at intervals along the circumference of the hem, so that the elastic webbing is located in the innermost layer of the garment and directly contacts the human body. The elastic webbing pulls the hem strap to fit the waist and abdomen of the human body, blocking the air convection and heat dissipation at the hem. After assembly, ironing and shaping, a garment that takes into account both a loose silhouette and a close fit to the human body for warmth is obtained.

[0036] Example 2: A method for manufacturing clothing that combines a loose silhouette with a close fit and warmth, comprising the following steps: S1: 12.5g of graphene oxide, 550mL of 2mM polyetherimide solution, and 25mL of 50mM ammonia solution were added to a reaction vessel and stirred for 11min at 22.5℃ and 550r / min. Then, 13.5g of 50mM zinc nitrate hexahydrate solution, 6.15g of 50mM hexamethylenetetramine solution, and 775mL of deionized water were added to the reaction vessel and stirred for another 11min. The mixture was then transferred to a stainless steel reaction vessel lined with polytetrafluoroethylene and heated to 105℃ for 13h. The product was washed three times with deionized water and ethanol, respectively, and dried under vacuum at 65℃ for 1.5h to obtain graphene oxide zinc nanoneedles.

[0037] S2: Add 5.15g aniline and 475mL deionized water to a reaction vessel and stir for 11min at 22.5℃ and 550r / min. Then add 4g acrylic acid and continue stirring for 35min. Add 12.55g ammonium persulfate and let stand at room temperature for 13h. Centrifuge at 5500r / min for 4min and collect the lower precipitate to obtain polyaniline particles. Dissolve 11g of polyaniline particles in 155mL of deionized water to obtain a polyaniline solution. Disperse 11g of graphene oxide nano-zinc needles in 250mL of deionized water and then add 155mL of polyaniline solution. Adjust the pH to 11.5 with 3mol / L NaOH solution and place in an ultrasonic cleaner for 3h. After ultrasonic treatment, the product precipitates as flocculent sediment at the bottom of the sample bottle. Use a dropper to absorb the upper aqueous solution and then place the obtained precipitate in a 55℃ drying oven for 13h to obtain a composite conductive filler.

[0038] S3: Add 5.5g of composite conductive filler and 125mL of deionized water to the reactor, stir for 11min at 22.5℃ and 550r / min, adjust the pH to 11.5 with 3mol / L NaOH solution, and place under a nitrogen atmosphere. 60 Irradiated for 25 hours in a Co radioactive source radiation field at a dose rate of 65 Gy / min, centrifuged at 5500 r / min for 4 min, and collected the lower precipitate to obtain the radiation-reduced composite conductive filler.

[0039] S4: 95g of PA6 chips, 1.5g of styrene-maleic anhydride copolymer, 6.5g of radiation reduction composite conductive filler, 0.8g of polyethylene wax and 0.6g of butylated hydroxyanisole were mixed and granulated, and then melt-spun at 260℃ to obtain multifunctional PA6 fibers.

[0040] S5: 42.5g of modified PA6 fiber, 20g of polypropylene fiber and 15g of bamboo charcoal fiber are twisted together to make a mixed-twist yarn. 6g of spandex fiber is used as the core yarn and the mixed-twist yarn is used as the outer covering yarn to double-cover the core yarn to obtain elastic yarn. The elastic yarn is used as the weft yarn and the mixed-twist yarn is used as the warp yarn to weave a webbing fabric. The fabric is heat-set at 190℃ for 50s and naturally shrunken for 18h to obtain an elastic webbing.

[0041] S6: The large-scale pattern with a chest circumference 40cm larger than the net chest circumference of the human body is adopted. The outer fabric and the middle lining are cut separately, sewn together to form a down-filled cavity, and then sealed after filling with down to obtain the large-scale down jacket shell.

[0042] S7: A heated vest containing a heated lining and heated cotton is fixed to the inner layer of the down jacket shell. The bottom of the heated vest extends as a ring-shaped hem lining material. A ring-shaped hem strap is sewn on the inner surface of the hem lining material facing the human body. Four elastic webbings are arranged at intervals along the circumference of the hem, so that the elastic webbing is located in the innermost layer of the garment and directly contacts the human body. The elastic webbing pulls the hem strap to fit the waist and abdomen of the human body, blocking the air convection and heat loss at the hem. After assembly, ironing and shaping, a garment that combines a loose silhouette with a close fit and warmth is obtained.

[0043] Example 3: A method for manufacturing clothing that balances a loose silhouette with a close fit and warmth, comprising the following steps: S1: 15g of graphene oxide, 600mL of 2mM polyetherimide solution, and 30mL of 50mM ammonia solution were added to a reaction vessel and stirred for 12min at 25℃ and 600r / min. Then, 15g of 50mM zinc nitrate hexahydrate solution, 7g of 50mM hexamethylenetetramine solution, and 800mL of deionized water were added to the reaction vessel and stirred for another 12min. The mixture was then transferred to a stainless steel reaction vessel lined with polytetrafluoroethylene and heated to 110℃ for 14h. The product was washed four times with deionized water and ethanol, respectively, and dried under vacuum at 70℃ for 2h to obtain graphene oxide zinc nanoneedles.

[0044] S2: Add 5.6g aniline and 500mL deionized water to a reaction vessel and stir for 12min at 25℃ and 600r / min. Then add 5g acrylic acid and continue stirring for 40min. Add 13.7g ammonium persulfate and let stand at room temperature for 14h. Centrifuge at 6000r / min for 5min and collect the lower precipitate to obtain polyaniline particles. Dissolve 12g of polyaniline particles in 160mL of deionized water to obtain a polyaniline solution. Disperse 12g of graphene oxide zinc nanoneedles in 300mL of deionized water and then add 160mL of polyaniline solution. Adjust the pH to 12 with 4mol / L NaOH solution and place in an ultrasonic cleaner for 4h. After ultrasonic treatment, the product precipitates as flocculent sediment at the bottom of the sample bottle. Use a dropper to absorb the upper aqueous solution and then place the obtained precipitate in a 60℃ drying oven for 14h to obtain a composite conductive filler.

[0045] S3: Add 6g of composite conductive filler and 130mL of deionized water to the reactor, stir for 12min at 25℃ and 600r / min, adjust the pH to 12 with 4mol / L NaOH solution, and place under a nitrogen atmosphere. 60 Irradiated for 26 hours in a Co radioactive source radiation field at a dose rate of 70 Gy / min, centrifuged at 6000 r / min for 5 min, and collected the lower precipitate to obtain the radiation-reduced composite conductive filler.

[0046] S4: 100g of PA6 chips, 2g of styrene-maleic anhydride copolymer, 7g of radiation reduction composite conductive filler, 0.9g of polyethylene wax and 0.7g of butylated hydroxyanisole were mixed and granulated, and then melt-spun at 265℃ to obtain multifunctional PA6 fibers.

[0047] S5: 50g of modified PA6 fiber, 25g of polypropylene fiber and 18g of bamboo charcoal fiber are twisted together to make a mixed-twist yarn. 8g of spandex fiber is used as the core yarn, and the mixed-twist yarn is used as the outer covering yarn to double-cover the core yarn to obtain elastic yarn. The elastic yarn is used as the weft yarn and the mixed-twist yarn is used as the warp yarn to weave a webbing fabric. The fabric is heat-set at 200℃ for 60s and naturally shrunken for 24h to obtain an elastic webbing.

[0048] S6: The large-scale pattern with a chest circumference 50cm larger than the net chest circumference of the human body is adopted. The outer fabric and the middle lining are cut separately, sewn together to form a down-filled cavity, and then sealed after filling with down to obtain the large-scale down jacket shell.

[0049] S7: A heated vest containing a heated lining and heated cotton is fixed to the inner layer of the down jacket shell. The bottom of the heated vest extends as a ring-shaped hem lining material. A ring-shaped hem strap is sewn on the inner surface of the hem lining material facing the human body. Six elastic webbing strips are arranged at intervals along the circumference of the hem, so that the elastic webbing is located in the innermost layer of the garment and directly contacts the human body. The elastic webbing pulls the hem strap to fit the waist and abdomen of the human body, blocking the air convection and heat loss at the hem. After assembly, ironing and shaping, a garment that combines a loose silhouette with a close fit and warmth is obtained.

[0050] Comparative Example 1: Based on Example 3, the radiation reduction composite conductive filler in step S4 was replaced with the composite conductive filler prepared in step S2, while the other steps remained unchanged, resulting in a garment that combines a loose silhouette with a close fit and warmth to the human body.

[0051] Comparative Example 2: Based on Example 3, the radiation reduction composite conductive filler in step S4 was replaced with the graphene oxide nano-zinc needles prepared in step S1, while the other steps remained unchanged, to prepare a garment that combines a loose silhouette with a close fit and warmth to the human body.

[0052] Comparative Example 3: Based on Example 3, the radiation reduction composite conductive filler in step S4 was replaced with commercially available graphene oxide, while the other steps remained unchanged, to prepare clothing that combines a loose silhouette with a close fit and warmth to the human body.

[0053] Performance tests were conducted on Examples 1-3 and Comparative Examples 1-3, and the results are shown in Table 1: Table 1

[0054] As shown in Table 1, the moisture absorption and heat generation in Comparative Example 1 decreased significantly. A large number of oxygen-containing functional groups remained on the surface of graphene oxide, which destroyed its conjugated π-electron system and hindered long-range electron transport. At the same time, the conjugated structure of polyaniline molecules was not optimized and the doping degree was insufficient, resulting in a decrease in the conductivity of the composite material, a significant reduction in electrothermal conversion efficiency, and a poorer heating effect. The decreased conductivity caused static charge to be unable to be quickly discharged and accumulated inside the clothing, making it easy to generate static electricity and stick to the body when wearing it. The oxygen-containing functional groups on the surface of graphene oxide weakened the interfacial bonding force with the PA6 matrix, reduced the ability of PA6 molecular chains to be oriented and crystallized, and slightly reduced the crystallinity and orientation of the fiber, resulting in a slight decrease in the bursting strength and anti-relaxation ability of the elastic webbing.

[0055] In Comparative Example 2, polyaniline is the core conductive component of the composite conductive filler. Without it, graphene oxide and zinc oxide nanoneedles alone cannot form a continuous and effective conductive network. The electrostatic half-life is significantly prolonged, and the static electricity inside the clothing cannot be eliminated, resulting in a very poor wearing experience. The zinc oxide nanoneedles are not coated with polyaniline, and their interfacial compatibility with the PA6 matrix is ​​extremely poor. They are prone to aggregation and slippage, and cannot effectively induce the crystallization of PA6 molecular chains, leading to a decrease in burst strength. After long-term stretching, the elastic webbing is prone to permanent deformation and loss of anti-relaxation ability.

[0056] In Comparative Example 3, commercially available graphene oxide has a high content of oxygen functional groups and poor conductivity. Furthermore, its sheet-like structure is prone to severe aggregation in the PA6 matrix, making it impossible to form a uniform conductive network. This results in an extended electrostatic half-life, reaching the critical value of industry standards, leading to extremely serious static electricity problems when worn. The mechanical reinforcement effect of sheet-like graphene oxide is far inferior to that of needle-like structures, and the aggregation problem further weakens its reinforcement effect, resulting in a decrease in the burst strength of elastic webbing, a significant reduction in tear resistance and relaxation resistance, and a shortened service life. Lacking zinc oxide nanoneedles and reduced graphene oxide, it cannot achieve antibacterial and bacteriostatic effects as well as auxiliary warmth retention.

[0057] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0058] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A method for manufacturing clothing that balances a loose silhouette with a close-fitting, warm fit, characterized in that, Includes the following steps: Step 1: Using a large-scale pattern with a chest circumference 30-50cm larger than the net chest circumference of the human body, cut the outer fabric and the middle lining pieces separately, sew them together to form the down filling cavity, fill with down and seal the opening to obtain the large-scale down jacket shell; Step 2: Fix the heated vest containing the heated lining and heated cotton to the inner layer of the down jacket. The bottom of the heated vest extends as a whole to form a ring-shaped hem lining substrate. Sew a ring-shaped hem strap on the inner surface of the hem lining substrate facing the human body. Arrange 2-6 elastic webbing strips at intervals along the circumference of the hem. Step 3: Position the elastic webbing as the innermost layer of the garment, in direct contact with the body's inner fabric. The elastic webbing's contraction force helps the hem conform to the waist and abdomen, blocking air convection and heat dissipation at the hem. After assembly, ironing, and shaping, a garment that balances a loose silhouette with a close fit and warmth is obtained.

2. The method for manufacturing a thermal garment that combines a loose silhouette with a close fit to the human body, as described in claim 1, is characterized in that... The elastic webbing is prepared by the following steps: S1. Using graphene oxide as a substrate, polyetherimide as a surface modifier and morphology regulator, and zinc nitrate hexahydrate as a zinc source, zinc oxide crystal nuclei are generated under hydrothermal conditions and directionally grown into needle-like structures to obtain graphene oxide nano-zinc needles. S2. Polyaniline particles are generated through the polymerization reaction of aniline monomers. The polyaniline particles are dissolved in water and mixed with a dispersion of graphene oxide zinc nano needles. Under strong alkaline conditions, the polyaniline molecules are uniformly coated on the surface of the graphene oxide zinc nano needles through electrostatic interactions and hydrogen bonds to obtain a composite conductive filler. S3. Under a nitrogen inert atmosphere, 60 The gamma rays generated by Co cause the aqueous solution to undergo radiation decomposition, which can efficiently reduce the oxygen-containing functional groups remaining on the surface of the composite conductive filler, thus obtaining the radiation-reduced composite conductive filler. S4. PA6 chips, styrene-maleic anhydride copolymer, radiation reduction composite conductive filler, polyethylene wax and butylated hydroxyanisole are mixed and granulated, and then melt-spun to obtain multifunctional PA6 fiber. S5. Modified PA6 fiber, polypropylene fiber and bamboo charcoal fiber are twisted together to obtain a mixed-twist yarn. Spandex fiber is used as the core yarn, and the mixed-twist yarn is used as the outer covering yarn to double-cover the core yarn to obtain elastic yarn. The elastic yarn is used as the weft yarn and the mixed-twist yarn is used as the warp yarn to weave a webbing fabric. The fabric is heat-set at 180-200℃ for 30-60s and naturally shrank for 12-24h to obtain elastic webbing.

3. The method for manufacturing a thermal garment that combines a loose silhouette with a close fit to the human body, as described in claim 2, is characterized in that... The mass ratio of the modified PA6 fiber, polypropylene fiber, bamboo charcoal fiber and spandex fiber is 35-50:15-25:12-18:4-8.

4. A method for manufacturing a thermal garment that combines a loose silhouette with a close fit to the human body, as described in claim 2, characterized in that... The mass ratio of the PA6 chips, styrene-maleic anhydride copolymer, radiation reduction composite conductive filler, polyethylene wax and butylated hydroxyanisole is 90-100:1-2:6-7:0.7-0.9:0.5-0.

7.

5. A method for manufacturing a thermal garment that combines a loose silhouette with a close fit to the human body, as described in claim 2, characterized in that... The specific preparation steps of the graphene oxide zinc nanoneedles are as follows: Graphene oxide, a 2mM polyetherimide solution, and a 50mM ammonia solution were added to a reaction vessel and stirred for 10-12 minutes at 20-25℃ and 500-600 rpm. Then, a 50mM zinc nitrate hexahydrate solution, a 50mM hexamethylenetetramine solution, and deionized water were added to the reaction vessel, and stirring was continued for 10-12 minutes. The mixture was then transferred to a stainless steel reaction vessel lined with polytetrafluoroethylene and heated to 100-110℃ for 12-14 hours. The product was washed 2-4 times with deionized water and ethanol, respectively, and then vacuum dried at 60-70℃ for 1-2 hours to obtain graphene oxide zinc nanoneedles.

6. A method for manufacturing a thermal garment that combines a loose silhouette with a close fit to the human body, as described in claim 5, characterized in that... The ratio of the amounts of graphene oxide, polyetherimide solution, ammonia solution, zinc nitrate hexahydrate solution, hexamethylenetetramine solution, and deionized water is 10-15g: 500-600mL: 20-30mL: 12-15g: 5.3-7g: 750-800mL.

7. A method for manufacturing a thermal garment that combines a loose silhouette with a close fit to the human body, as described in claim 2, characterized in that... The specific preparation steps for the polyaniline particles are as follows: Aniline and deionized water were added to a reaction vessel and stirred for 10-12 minutes at 20-25°C and 500-600 r / min. Then acrylic acid was added and stirring was continued for 30-40 minutes. Ammonium persulfate was then added and the mixture was allowed to stand at room temperature for 12-14 hours. The mixture was then centrifuged at 5000-6000 r / min for 3-5 minutes, and the lower precipitate was collected to obtain polyaniline particles. The ratio of aniline, deionized water, acrylic acid and ammonium persulfate is 4.7-5.6g: 450-500mL: 3-5g: 11.4-13.7g.

8. A method for manufacturing a thermal garment that combines a loose silhouette with a close fit to the human body, as described in claim 2, characterized in that, The specific preparation steps of the composite conductive filler are as follows: Graphene oxide nano-zinc needles were dispersed in deionized water, and then polyaniline solution was added. The pH value was adjusted to 11-12 with 2-4 mol / L NaOH solution. The mixture was placed in an ultrasonic cleaner for 2-4 hours. After the ultrasonic treatment, the product precipitated as flocculent at the bottom of the sample bottle. The upper aqueous solution was aspirated with a dropper. The precipitate was then placed in a drying oven at 50-60℃ for 12-14 hours to obtain the composite conductive filler. The ratio of the amount of graphene oxide nano-zinc needles, deionized water and polyaniline solution is 10-12g: 200-300mL: 150-160mL.

9. A method for manufacturing a thermal garment that combines a loose silhouette with a close fit to the human body, as described in claim 2, characterized in that, The specific preparation steps of the radiation reduction composite conductive filler are as follows: Add the composite conductive filler and deionized water to the reactor, stir for 10-12 minutes at 20-25℃ and 500-600 r / min, adjust the pH to 11-12 with 2-4 mol / L NaOH solution, and place under a nitrogen atmosphere. 60 Irradiated in a Co radioactive source for 24-26 hours at a dose rate of 60-70 Gy / min, centrifuged at 5000-6000 r / min for 3-5 minutes, and the lower precipitate was collected to obtain the radiation-reduced composite conductive filler.

10. A method for manufacturing a thermal garment that combines a loose silhouette with a close fit to the human body, as described in claim 9, characterized in that... The ratio of the composite conductive filler to deionized water is 5-6g:120-130mL.

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