Composite Material for Windproof Faux-Fur Garments and Method for Manufacturing the Same

Abstract

The present invention relates to a composite material for windproof artificial fur garments and a method for manufacturing the same. The composite material is composed of an artificial fur surface layer arranged to be sequentially laminated from the outside to the inside, a non-woven fabric layer for thermal insulation, a windproof and cold-blocking layer, and, if necessary, a lining layer. By doing so, the invention provides a composite material for windproof artificial fur garments and a method for manufacturing the same that can simultaneously secure thermal insulation performance, wear stability, and durability while suppressing the direct penetration flow of air caused by external wind.

Description

Technology Field

[0001] The present invention relates to a functional material applied to clothing, and more specifically, to a composite material for windproof artificial fur clothing.

[0002] The present invention relates to a method for manufacturing a composite material for windproof artificial fur clothing.

[0003] The present invention relates to an artificial fur-based composite material and a method for manufacturing the same, which can be applied to clothing worn by animals in low-temperature winter environments to block the ingress of cold air caused by external wind while simultaneously ensuring wearability, skin contact safety, and durability.

[0004] The present invention relates particularly to a composite material for windproof artificial fur clothing and a method for manufacturing the same, designed to be suitable for winter windproof clothing materials considering body temperature characteristics, repetitive movements, and washing environments through a composite structure in which an artificial fur surface layer, an insulating nonwoven fabric layer, and a windproof and cold-blocking layer are laminated. Background Technology

[0005] Recently, there has been an increasing demand for functional clothing designed to effectively maintain the wearer's body temperature in low-temperature winter environments. In particular, in environments with frequent outdoor activities, there is a growing need for clothing materials that possess not only simple thermal insulation but also windproof capabilities to block the influx of cold air from the outside.

[0006] Conventional winter clothing has been manufactured using padding, knits, fabrics, or synthetic fur materials, either individually or in combination. However, these materials struggle to adequately block the penetration of air caused by external wind, resulting in reduced perceived warmth during actual wear. Consequently, separate films or coating layers have been applied to ensure windproof functionality; however, this approach has led to reduced flexibility or impaired moisture wicking during wear, thereby lowering comfort. Furthermore, while synthetic fur offers advantages in terms of appearance and feel, its pile structure is prone to compression or deformation due to external pressure or repeated bending, which has resulted in limitations in maintaining appearance and thermal performance during prolonged wear. In particular, simple lamination of synthetic fur and a windproof layer has insufficient interlayer bonding stability, which can lead to a decline in shape stability during washing or repeated wear.

[0007] Furthermore, given that winter clothing comes into direct contact with the human body for extended periods, factors related to wearing comfort, such as skin irritation, static electricity generation, and discomfort during wear, must also be given important consideration.

[0008] However, conventional technologies often focus on designs that prioritize either windproof or thermal insulation performance alone, which has limited material design that comprehensively considers thermal insulation, windproofness, flexibility, and wearability. Consequently, conventional artificial fur clothing materials for winter have faced the problem of being unable to simultaneously satisfy requirements for blocking the ingress of cold air from external winds, providing stable thermal insulation, and ensuring comfort and shape retention during prolonged wear. As a result, there has been a continuous demand for composite clothing materials capable of effectively implementing windproof and thermal insulation functions while maintaining the aesthetic advantages of artificial fur. The problem to be solved

[0009] The present invention provides a composite material for windproof artificial fur clothing and a method for manufacturing the same, which secures windproof and cold-blocking performance suitable for winter clothing by suppressing the direct penetration flow of air caused by external wind while maintaining the external characteristics and tactile feel of the artificial fur material.

[0010] The present invention provides a composite material for windproof artificial fur clothing that mitigates heat loss occurring during wear in an external low-temperature environment, thereby maintaining stable thermal insulation performance even when worn for a long time, and a method for manufacturing the same.

[0011] The present invention provides a composite material for windproof artificial fur clothing and a method for manufacturing the same, wherein compression or deformation of the artificial fur pile structure is suppressed even in a repetitive bending and compression environment due to the wearer's movement, and the appearance and function are maintained stably for a long period of time.

[0012] The present invention provides a composite material for windproof artificial fur clothing with excellent wearing comfort by alleviating static electricity generation, skin irritation, or discomfort while wearing, taking into account the usage characteristics of direct contact with the human body for a long time, and a method for manufacturing the same.

[0013] The present invention provides a composite material for windproof artificial fur clothing that satisfies the above-mentioned functions and can be manufactured in a manner applicable to an actual clothing manufacturing process, and a method for manufacturing the same. means of solving the problem

[0014] To solve the above-mentioned problem, the present invention provides a composite material for windproof artificial fur clothing having a laminated structure comprising an artificial fur surface layer, an insulating nonwoven fabric layer, and a windproof and cold-blocking layer.

[0015] Specifically, the composite material for windproof artificial fur clothing according to the present invention comprises an artificial fur surface layer arranged to be sequentially laminated from the outside to the inside, a thermal insulation nonwoven fabric layer, a windproof and cold-blocking layer, and, if necessary, a lining layer.

[0016] The above artificial fur surface layer is configured to suppress the phenomenon in which the pile structure is easily compressed or deformed by human movement or external wind by using low-shrinkage fibers with a heat shrinkage rate controlled to 5% or less through a heat-setting process, by forming polyester staple fibers having a trilobate or quadruple cross-sectional structure into a pile structure.

[0017] In addition, by performing end-blunting treatment on the file ends and applying a hydrophilic treatment agent, irritation and static electricity generation are mitigated even in environments involving repeated contact with the skin.

[0018] The above-mentioned insulating nonwoven fabric layer is formed from a nonwoven fabric mixed with hollow polyester fibers, polyester fibers having a three-dimensional crimp structure, and low-melting point binder polyester fibers, and is manufactured without the use of adhesive by heat-fusing a fiber web formed by a carding method.

[0019] In addition, the above-mentioned insulating nonwoven fabric layer is formed to have a density gradient in the thickness direction, so that it has different densities on the artificial fur surface layer side and the windproof and cold-blocking layer side.

[0020] The above windproof and cold-blocking layer is formed of a membrane with hydrophilic polyurethane as the main component, and is configured to suppress the direct penetration flow of air caused by external wind by having a structure that is based on a non-porous structure but selectively has micropores formed therein.

[0021] The above artificial fur surface layer and the insulating non-woven fabric layer are bonded under predetermined temperature, pressure, and time conditions, and the above insulating non-woven fabric layer and the windproof and cold-blocking layer are bonded by a pattern bonding method, thereby preventing the excessive reduction of flexibility of the entire composite material.

[0022] In addition, the present invention provides a method for manufacturing a composite material for windproof artificial fur clothing, comprising the steps of: melt-spinning, stretching, and heat-setting polyester staple fibers to form an artificial fur surface layer; manufacturing a non-woven fabric layer for thermal insulation; manufacturing a windproof and cold-blocking layer; and sequentially laminating and combining each of the above layers to manufacture a composite material having the structure as described above. Effects of the invention

[0023] As the direct penetration flow of air caused by external wind is suppressed, the composite material according to the present invention exhibits significantly low air permeability, thereby mitigating the reduction in perceived temperature in outdoor winter environments.

[0024] In addition, due to the laminated structure including an insulating non-woven fabric layer, it exhibits a high thermal resistance value, effectively suppressing heat loss even in external low-temperature environments.

[0025] In addition, the ratio of outer surface temperature maintenance over time is maintained at a high level, providing the effect of exhibiting heat retention characteristics advantageous for maintaining body temperature while worn.

[0026] In addition, by applying low-shrinkage polyester staple fibers with a trilobate or quadruple cross-sectional structure and pile end blunting treatment to the surface layer of the artificial fur, compression or deformation of the pile structure is relatively suppressed even in environments of repetitive movement or external pressure, and the occurrence of irritation is alleviated in environments of repeated contact with the skin.

[0027] In addition, the artificial fur surface layer coated with a hydrophilic treatment agent reduces static electricity generation and pile tangling even in dry winter environments, providing the effect of alleviating discomfort while wearing.

[0028] In addition, as the above-mentioned insulating nonwoven fabric layer is formed to have a density gradient in the thickness direction, the shape stability of the composite material is maintained even in a repetitive compression environment due to movement, and structural stability is maintained even in a long-term use and frequent washing environment.

[0029] In addition, the composite material according to the present invention is configured to be applicable to an actual clothing manufacturing process according to the manufacturing method described in the specification, thereby providing the effect of ensuring reproducibility and production stability in the manufacture of windproof artificial fur clothing. Brief explanation of the drawing

[0030] FIG. 1 is a schematic diagram showing the cross-sectional structure of a composite material for windproof artificial fur clothing according to one embodiment of the present invention. FIG. 2 is a schematic diagram showing the density gradient structure formed in the thickness direction of the thermal insulation nonwoven fabric layer of the present invention. Specific details for implementing the invention

[0031] Prior to the description of the present invention, the following specific structural or functional descriptions are provided merely for the purpose of illustrating embodiments according to the concept of the present invention. Embodiments according to the concept of the present invention may be implemented in various forms and should not be interpreted as being limited to the embodiments described herein.

[0032] In addition, since embodiments according to the concept of the present invention may be subject to various modifications and may take various forms, specific embodiments are to be described in detail in this specification. However, this is not intended to limit the embodiments according to the concept of the present invention to specific disclosed forms, and it should be understood that they include all modifications, equivalents, and substitutions that fall within the spirit and scope of the present invention.

[0034] The present invention relates to a composite material for windproof artificial fur clothing and a method for manufacturing the same.

[0035] Specifically, the present invention relates to an artificial fur composite material having a laminated structure comprising an artificial fur surface layer, an insulating non-woven fabric layer, and a windproof and cold-blocking layer, which is applied to clothing worn in low-temperature winter environments to suppress the inflow of cold air caused by external wind, and a method for manufacturing said composite material.

[0037] The windproof artificial fur composite material (1) of the present invention comprises an artificial fur surface layer (10) arranged to be sequentially laminated from the outside to the inside, an insulating nonwoven fabric layer (20) laminated on the back side of the artificial fur surface layer, a windproof and cold-blocking layer (30) laminated on the back side of the insulating nonwoven fabric layer to suppress the inflow of air caused by external wind, and a lining layer (40) bonded to the back side of the windproof and cold-blocking layer as needed.

[0039] The artificial fur surface layer (10) of the present invention will be described.

[0040] The above artificial fur surface layer (10) is a layer placed on the outer side of winter clothing and forms an area that comes into direct contact with the skin or is exposed to the external environment.

[0041] The above artificial fur surface layer (10) has a pile structure made of polyester staple fibers and is configured to mimic the appearance and feel of natural fur while maintaining structural stability in a repeated wearing and washing environment.

[0042] The above polyester staple fiber is formed to have a trilobate or quadruple cross-sectional structure and is composed of low-shrinkage fibers with a heat shrinkage rate controlled to 5% or less through a heat-setting process. Accordingly, the phenomenon of the pile being easily compressed or collapsing due to movement or external wind is suppressed.

[0043] The pile fibers of the above artificial fur surface layer (10) are cut to have a length of 32 to 45 mm, and the pile ends are treated with hot air to blunt the ends so that irritation is reduced when in repeated contact with the skin.

[0045] Specifically, the polyester staple fibers constituting the artificial fur surface layer (10) are manufactured through a melt spinning process using polyethylene terephthalate (PET) resin as a raw material.

[0046] The above PET resin is used having an intrinsic viscosity (IV) in the range of 0.62 to 0.68 dL / g, and may include 0.2 to 0.5 weight% of a matting agent as needed.

[0047] The above polyester staple fiber is formed to have a trilobate or quadruple cross-sectional structure, and for this purpose, it is melt-spun at a spinning temperature of 285 to 295°C using a spinning nozzle with a trilobate or quadruple shape.

[0048] The spun fibers are cooled by a cross-flow air cooling method using air at 20 to 25°C.

[0049] The cooled fiber undergoes a stretching process to impart molecular orientation, and the first stretching ratio is set to 2.5 to 3.0 times, and the second stretching ratio is set to 1.2 to 1.5 times.

[0050] The fibers that have been stretched are subjected to a heat-setting process at a temperature of 150 to 170°C for 30 to 90 seconds to control the heat shrinkage rate to be 5% or less.

[0051] Afterwards, the fibers are cut into lengths of 32 to 45 mm to be manufactured into short fibers, and the cut short fibers are used as pile fibers of the artificial fur surface layer (10).

[0053] The above artificial fur surface layer (10) may be coated with a hydrophilic treatment agent at a low concentration to suppress static electricity generation, thereby reducing lifting or tangling of the pile even in a dry winter environment.

[0054] The hydrophilic treatment agent applied to the polyester staple fibers of the above artificial fur surface layer (10) is preferably composed of a hydrophilic composition that ensures low irritation, non-toxicity, and washing durability, taking into account the usage environment in which it comes into repeated contact with the skin.

[0055] The hydrophilic treatment agent applied to the polyester staple fibers of the above artificial fur surface layer (10) may include one or more of polyethylene glycol (PEG), polyethylene glycol ether (PEG Ether), or polyoxyethylene series polymers having an average molecular weight (Mw) of 400 to 2,000. The hydrophilic polymer exists on the surface of the polyester fiber in the form of adsorption or a thin film, thereby imparting hydrophilicity to the fiber surface and suppressing the generation of static electricity.

[0056] The above hydrophilic treatment agent may include a nonionic surfactant to improve affinity with the fiber surface. The above nonionic surfactant may include 0.05 to 0.3 weight percent of an alcohol ethoxylate or a fatty acid ethoxylate. Nonionic surfactants have a lower potential for skin irritation compared to anionic or cationic surfactants, making them suitable for clothing materials.

[0057] The above hydrophilic treatment agent may contain a small amount of a water-soluble silicone-based polymer. The above water-soluble silicone-based polymer may contain 0.05 to 0.2 weight percent of polyether-modified silicone. The above silicone-based component reduces the friction coefficient of the fiber surface, thereby alleviating entanglement between piles and contributing to maintaining a soft touch.

[0058] The above hydrophilic treatment agent can be prepared with a composition such as 0.2 to 0.8 wt% of a hydrophilic polymer (PEG series), 0.05 to 0.3 wt% of a nonionic surfactant, 0.05 to 0.2 wt% of a water-soluble silicone-based component, and the remainder being purified water.

[0059] The above hydrophilic treatment agent can be applied to the surface layer of polyester staple fibers or synthetic fur by padding, spraying, or immersion, and then dried at 110 to 130°C for 1 to 2 minutes to be fixed to the fiber surface.

[0061] The thermal insulation nonwoven fabric layer (20) of the present invention will be described.

[0062] The above-mentioned insulating nonwoven fabric layer (20) is a layer laminated on the back side of the above-mentioned artificial fur surface layer (10), and is arranged to mitigate the direct transmission of cold air from the external environment to the artificial fur surface layer (10).

[0063] The above-mentioned insulating nonwoven fabric layer (20) is interposed between the artificial fur surface layer (10) and the windproof / cold blocking layer (30) to suppress the phenomenon in which the pile structure of the artificial fur surface layer (10) is excessively compressed due to external pressure or repeated bending.

[0064] The above-mentioned insulating nonwoven fabric layer (20) is composed of a nonwoven fabric mixed with polyester fibers having a hollow structure, polyester fibers having a three-dimensional crimp structure, and low-melting point binder polyester fibers.

[0065] The above hollow polyester fibers are used with a hollowness ratio of 25 to 35%, and polyester fibers having a three-dimensional crimp structure are used to facilitate the formation of spaces between fibers.

[0066] The above low-melting point binder polyester fiber is configured to have a melting point of 110 to 130°C so that bonds between fibers are formed without the use of adhesive through a heat fusion process.

[0067] Accordingly, the insulating nonwoven fabric layer (20) can maintain its structural shape even in a repeated washing and bending environment.

[0068] The above insulating nonwoven fabric layer (20) is manufactured by heat-fusing a fiber web formed by a carding method. The basis weight of the fiber web can be adjusted to 80 to 150 g / m², and the thickness in an uncompressed state can be adjusted to a range of 6 to 15 mm.

[0069] The above heat fusion conditions can be performed for 30 to 120 seconds at a temperature range of 125 to 145°C.

[0070] The above-mentioned insulating nonwoven fabric layer (20) can be formed to have a density gradient in the thickness direction, and the heat fusion conditions can be adjusted so that the artificial fur surface layer (10) side is formed with a relatively low-density structure and the windproof / cold blocking layer (30) side is formed with a relatively high-density structure.

[0071] Accordingly, the shape of the insulating nonwoven fabric layer (20) is configured to be stably maintained even in a repetitive compression environment due to movement.

[0073] The windproof and cold-blocking layer (30) of the present invention will be described.

[0074] The above windproof and cold-blocking layer (30) is a layer laminated on the back side of the above insulating nonwoven fabric layer (20), and is arranged to suppress the direct movement of air generated by external wind from being transmitted to the artificial fur surface layer (10).

[0075] The above windproof and cold-blocking layer (30) is interposed between the insulating non-woven fabric layer (20) and the lining layer (40) to block the penetration flow of external air.

[0076] The above windproof and cold-blocking layer (30) may be formed of a membrane with hydrophilic polyurethane as the main component, and may have a structure in which micropores are selectively formed to allow the movement of water vapor while having a non-porous structure as the basis. Accordingly, the inflow of air caused by external wind is suppressed, while water vapor generated by body temperature is configured to be discharged in a diffusion manner.

[0077] The above polyurethane membrane can be formed by casting using a knife coating method, and the final thickness can be controlled to a range of 15 to 25 μm.

[0078] The above membrane may have micropores with an average diameter of 0.5 to 2 μm formed at a density of 20 to 40 / cm².

[0079] In addition, the above windproof and cold-blocking layer (30) may include a polyurethane composition having low-temperature flexibility so as to respond to bending and repeated deformation in a low-temperature environment, and accordingly, is configured to suppress embrittlement or cracking of the membrane even in a sub-zero environment.

[0080] The above windproof and cold-blocking layer (30) can be bonded to the insulating nonwoven fabric layer (20) by full bonding or pattern bonding, and when pattern bonding is applied, the bonding area ratio can be set to a range of 10 to 30% of the total area. Accordingly, it is configured so that the windproof performance is maintained while preventing the reduction of the flexibility of the entire composite material.

[0082] The lining layer (40) of the present invention will be described.

[0083] The above lining layer (40) is a layer that is bonded to the back side of the above windproof and cold-blocking layer (30), and is positioned in the area that comes into direct contact with the skin by forming the inner side of the composite material (1).

[0084] The above lining layer (40) is configured to suppress skin irritation and alleviate discomfort caused by friction during wear, taking into account the wearing environment.

[0085] The above lining layer (40) can be formed from a fabric made of polyester fibers, and a fabric having a plain weave or twill weave structure can be used.

[0086] The basis weight of the above lining layer (40) can be set to a range of 50 to 100 g / m² so as to suppress excessive weight increase of the entire composite material.

[0087] The above lining layer (40) may have a fabric structure that ensures breathability, and is configured to mitigate moisture generated by body temperature from remaining inside the garment for a long time.

[0088] In addition, the lining layer (40) may be composed of a fiber with excellent washability so that its shape is stably maintained even in a repetitive washing environment.

[0089] The lining layer (40) may be bonded to the back side of the windproof and cold-blocking layer (30) through one or more of sewing, bonding, or lamination methods, and the bonding method may be selected according to the shape of the garment and usage conditions.

[0091] The lamination and bonding method of each layer of the windproof artificial fur composite material (1) of the present invention will be explained.

[0093] The composite material (1) for windproof artificial fur clothing according to the present invention is formed by arranging an artificial fur surface layer (10), a thermal insulation nonwoven fabric layer (20), a windproof and cold-blocking layer (30), and a lining layer (40) so as to be sequentially laminated from the outside to the inside.

[0094] The artificial fur surface layer (10) and the insulating non-woven fabric layer (20) may be joined using a full bonding method or a partial bonding method, and one or more of an adhesive, heat fusion, or lamination method may be applied. At this time, in order to prevent the pile structure of the artificial fur surface layer (10) from being excessively compressed, the bonding pressure and temperature conditions may be set so that deformation of the pile structure is minimized. Specifically, the bonding of the artificial fur surface layer (10) and the insulating non-woven fabric layer (20) may be set to be performed under conditions of a bonding temperature of 110 to 140°C, a bonding pressure of 0.02 to 0.15 MPa, and a bonding time of 5 to 30 seconds, and the conditions are selected within a range in which the resilience of the pile is maintained.

[0095] The above-mentioned insulating nonwoven fabric layer (20) and windproof / cold blocking layer (30) can be combined by a pattern bonding method, and when pattern bonding is applied, the bonding area ratio can be set to a range of 10 to 30% of the total area. Accordingly, it is configured so that the penetration flow of external air is blocked while preventing excessive reduction in the flexibility of the entire composite material.

[0096] The above windproof and cold-blocking layer (30) and lining layer (40) may be joined by one or more of sewing, bonding, or lamination methods, and the joining method may be selected considering the wearing form of the garment, the usage environment, and washing conditions. At this time, the joining conditions may be adjusted so as to suppress interlayer delamination or wrinkling at the joining portion.

[0097] The lamination and bonding of each of the above layers may be performed in the form of a laminated sheet prior to the cutting process, or may be performed by sequentially bonding each layer after cutting. This allows for the selection of the manufacturing process according to the design, pattern, and size of the garment.

[0099] A method for manufacturing a composite material (1) for windproof artificial fur clothing according to the present invention will be described.

[0100] The method for manufacturing a composite material for windproof artificial fur clothing according to the present invention comprises a process of sequentially manufacturing an artificial fur surface layer, an insulating nonwoven fabric layer, a windproof and cold-blocking layer, and a lining layer, and then laminating and bonding them.

[0102] [Step S1: Manufacture of polyester staple fibers for synthetic fur surface layer]

[0103] First, a polyethylene terephthalate (PET) resin having an intrinsic viscosity (IV) of 0.62 to 0.68 dL / g is prepared. The PET resin may contain 0.2 to 0.5 weight percent of a matting agent as needed.

[0104] The above PET resin is melt-spun at a spinning temperature of 285 to 295°C using a spinning nozzle with a three-lobed or four-lobed cross-sectional shape, and cooled by a cross-flow air cooling method using air at 20 to 25°C.

[0105] The cooled fiber is stretched under conditions of a first draw ratio of 2.5 to 3.0 times and a second draw ratio of 1.2 to 1.5 times, and then heat-set at 150 to 170°C for 30 to 90 seconds to control the heat shrinkage rate to be 5% or less.

[0106] Afterwards, the fibers are cut to a length of 32 to 45 mm to produce polyester staple fibers for the surface layer of artificial fur.

[0109] [Step S2: Formation of the artificial fur surface layer]

[0111] A synthetic fur surface layer having a pile structure is formed using the above-mentioned manufactured polyester staple fibers.

[0112] At this time, the pile fibers are treated under hot air conditions of 120°C for 20 to 60 seconds to perform end blunting treatment so that fine burrs at the ends of the piles are removed.

[0113] Afterwards, to suppress static electricity generation, a hydrophilic treatment agent is applied by padding, spraying, or immersion, and then dried at 110 to 130°C for 1 to 2 minutes so that the hydrophilic treatment agent is fixed to the surface of the fiber.

[0115] [Step S3: Manufacture of the insulating nonwoven layer]

[0117] A fiber web is formed by mixing hollow polyester fibers with a hollowness of 25 to 35%, polyester fibers having a three-dimensional crimp structure, and low-melting-point binder polyester fibers with a melting point of 110 to 130°C using a carding method.

[0118] The fiber web is adjusted to a basis weight of 80 to 150 g / m² and an uncompressed thickness of 6 to 15 mm, and then heat-fused for 30 to 120 seconds at a temperature of 125 to 145°C to produce a nonwoven thermal insulation layer in which fiber-to-fiber bonding is formed without adhesive.

[0119] During heat fusion, different heating temperatures can be applied to the synthetic fiber side and the windproof layer side to form a density gradient in the thickness direction.

[0121] [Step S4: Manufacture of Windproof and Cold Blocking Layer]

[0123] A solution for a polyurethane membrane is prepared by mixing a hydrophilic polyurethane resin and a solvent.

[0124] The above solution is cast using a knife coating method to apply a wet thickness of 80 to 120 μm, and then dried at 90 to 110°C for 2 to 5 minutes to form a polyurethane membrane with a final thickness of 15 to 25 μm.

[0125] Subsequently, a windproof and cold-blocking layer is manufactured by selectively forming micropores with an average diameter of 0.5 to 2 μm at a density of 20 to 40 pores / cm².

[0127] [Step S5: Combination of the artificial fur surface layer and the insulating non-woven fabric layer]

[0129] After laminating the above artificial fur surface layer and the insulating nonwoven fabric layer, they are bonded through a heat press or lamination process.

[0130] At this time, the bonding conditions are set to a bonding temperature of 110 to 140°C, a bonding pressure of 0.02 to 0.15 MPa, and a bonding time of 5 to 30 seconds so that the pile structure of the artificial fur surface layer is suppressed from being pressed or deformed.

[0132] [Step S6: Combination of the insulating non-woven fabric layer and the windproof / cold barrier layer]

[0134] The above-mentioned insulating non-woven fabric layer and windproof / cold barrier layer are combined using a pattern bonding method.

[0135] At this time, the bonding area ratio is set to a range of 10 to 30% of the total area so that windproof performance is maintained while preventing excessive reduction in the flexibility of the composite material.

[0137] [Step S7: Combination of windproof / cold barrier layer and lining layer]

[0139] After placing a lining layer on the back side of the above windproof and cold-blocking layer, the composite material for windproof artificial fur clothing is completed by combining it through one or more of sewing, bonding, or lamination methods.

[0141] Example 1

[0143] [Polyester staple fiber for artificial fur surface layer]

[0144] Polyethylene terephthalate (PET) resin with an intrinsic viscosity (IV) of 0.65 dL / g was used as a raw material.

[0145] 0.3 weight% of titanium dioxide (TiO₂) was added to the above PET resin as a matting agent.

[0146] The above resin was melt-spun at a spinning temperature of 290°C using a spinning nozzle with a three-lobed cross-section, and the spun fibers were cooled by a cross-flow air cooling method using air at 22°C.

[0147] The cooled fibers were stretched under conditions of a first draw ratio of 2.8 times and a second draw ratio of 1.3 times, and then a heat-setting process was performed at 160°C for 60 seconds to control the heat shrinkage rate to 4.2%.

[0148] The heat-set fibers were cut into 40 mm lengths to produce polyester staple fibers for the surface layer of artificial fur.

[0150] [Synthetic fur surface layer]

[0151] Using the polyester staple fibers manufactured above, an artificial fur surface layer with a pile length of 40 mm and a pile density of 2,000 g / m² was formed.

[0152] The formed artificial fur surface layer was treated for 40 seconds under hot air conditions at 120°C to perform pile end debuffing treatment.

[0153] Subsequently, a hydrophilic treatment agent was applied in a padding manner to suppress the generation of static electricity. The hydrophilic treatment agent used a composition consisting of 0.5 wt% polyethylene glycol (PEG, Mw 1,000), 0.2 wt% nonionic surfactant (alcohol ethoxylate), 0.1 wt% polyether-modified silicone, and the remainder being purified water. After applying the hydrophilic treatment agent, the material was dried at 120°C for 90 seconds to fix the hydrophilic treatment agent to the fiber surface.

[0155] [Insulating non-woven fabric layer]

[0156] Fibers for a thermal insulation nonwoven layer were prepared by mixing 50 wt% of hollow polyester fibers (hollow ratio 30%), 30 wt% of three-dimensional crimped polyester fibers, and 20 wt% of low melting point binder polyester fibers (melting point 120°C).

[0157] After webbing the above fibers using a carding method, the basis weight was adjusted to 120 g / m² and the thickness in the uncompressed state to 10 mm.

[0158] Subsequently, a thermal insulation nonwoven fabric layer having a density gradient in the thickness direction was manufactured by heat-fusing under the conditions of a heating temperature of 130°C on the artificial fur side, a heating temperature of 145°C on the windproof layer side, and a heating time of 60 seconds through a heat-fusing process.

[0160] [Windproof and Cold Blocking Layer]

[0161] A solution for a membrane was prepared by mixing 100 parts by weight of hydrophilic polyurethane resin and 100 parts by weight of solvent (DMF).

[0162] The above solution was cast to a wet thickness of 100 μm using a knife coating method, and then dried at 95°C for 3 minutes to form a polyurethane membrane with a final thickness of 20 μm.

[0163] Subsequently, a windproof and cold-blocking layer was manufactured by forming micropores with an average diameter of 1.0 μm at a density of 30 / cm² using a laser perforation method.

[0165] [Combination of artificial fur surface layer and insulating non-woven fabric layer]

[0166] After laminating the above artificial fur surface layer and the thermal insulation nonwoven fabric layer, they were bonded using a heat press method. The bonding conditions were a bonding temperature of 130℃, a bonding pressure of 0.08 MPa, and a bonding time of 20 seconds.

[0168] [Combination of insulating non-woven fabric layer and windproof / cold barrier layer]

[0169] The above-mentioned thermal insulation nonwoven fabric layer and windproof / cold barrier layer were bonded using a dot pattern bonding method. At this time, the bonding area ratio is 20%.

[0171] [Combination of windproof / cold blocking layer and lining layer]

[0172] A composite material for windproof artificial fur clothing was manufactured by placing a polyester plain weave lining layer with a basis weight of 70 g / m² on the back side of a windproof and cold-blocking layer and then combining them by lamination.

[0174] Comparative Example 1

[0175] Comparative Example 1 is distinguished from Example 1 in that it manufactures an artificial fur surface layer and a non-woven fabric layer for insulation under the same conditions as Example 1, but does not include a windproof and cold-blocking layer (30).

[0176] Specifically, in Comparative Example 1 above, the manufacturing conditions of the polyester staple fiber for the artificial fur surface layer, the formation conditions of the artificial fur surface layer, and the fiber composition, basis weight, thickness, and heat fusion conditions of the nonwoven fabric layer for insulation were applied in the same way as in Example 1.

[0177] After laminating the above artificial fur surface layer and the thermal insulation nonwoven fabric layer, they were bonded under the same conditions as Example 1 (bonding temperature 130℃, bonding pressure 0.08 MPa, bonding time 20 seconds).

[0178] Subsequently, a polyester plain weave lining layer with a basis weight of 70 g / m² was directly bonded to the back of the insulating nonwoven layer to manufacture a composite material that does not include a windproof or cold-blocking layer.

[0179] Comparative Example 1 is compared with Example 1 in that it has a structure that allows direct penetration of air by external wind as the windproof and cold-blocking layer is removed.

[0181] Comparative Example 2

[0182] Comparative Example 2, a composite material for artificial fur clothing with the insulation nonwoven layer removed, is distinguished from Example 1 in that it manufactures the artificial fur surface layer and the windproof / cold blocking layer under the same conditions as Example 1, but does not include the insulation nonwoven layer (20).

[0183] Specifically, in Comparative Example 2 above, the manufacturing conditions, pile formation conditions, end blunting treatment conditions, and hydrophilic treatment conditions for the polyester staple fiber for the artificial fur surface layer were applied in the same way as in Example 1.

[0184] A windproof and cold-blocking layer was manufactured by applying the same composition, casting conditions, and micropore formation conditions of the polyurethane membrane as in Example 1.

[0185] A windproof and cold-blocking layer was directly laminated onto the back side of the above artificial fur surface layer and then bonded using a lamination method. Subsequently, a polyester plain weave lining layer with a basis weight of 70 g / m² was bonded to the back side of the windproof and cold-blocking layer to manufacture a composite material with the insulation nonwoven layer removed.

[0186] Comparative Example 2 is compared with Example 1 in that, as the insulating nonwoven fabric layer is removed, the artificial fur surface layer and the windproof and cold-blocking layer come into direct contact, and the artificial fur pile structure can undergo relatively large deformation in compression and bending environments.

[0188] Test Example 1: Windproofness Test

[0189] This test was performed to evaluate the air blocking characteristics against external wind of the composite material for windproof artificial fur clothing according to Example 1, and to confirm the difference according to the presence or absence of the windproof and cold blocking layer (30) and the insulating nonwoven fabric layer (20) by comparing it with Comparative Example 1 and Comparative Example 2.

[0190] For the windproof test, the windproof synthetic fur composite material according to Example 1 and the composite materials according to Comparative Examples 1 and 2 were prepared as test specimens, respectively. Example 1 is a specimen having a structure in which a synthetic fur surface layer, an insulating non-woven fabric layer, a windproof and cold-blocking layer, and a lining layer are sequentially laminated. Comparative Example 1 is a specimen having a structure that includes the same synthetic fur surface layer, insulating non-woven fabric layer, and lining layer as Example 1, but with the windproof and cold-blocking layer removed. Additionally, Comparative Example 2 is a specimen having a structure that includes a synthetic fur surface layer, a windproof and cold-blocking layer, and a lining layer, but with the insulating non-woven fabric layer removed. Each test specimen was cut to a size of 100 mm × 100 mm from a composite material manufactured under the same conditions, and to ensure the reliability of the test results, each specimen was prepared to maintain the same orientation and lamination state.

[0191] Windproof performance was evaluated in accordance with KS K ISO 9237 (Test Method for Air Permeability of Fabrics). The test was conducted using an air permeability tester, and the amount of air passing through the specimen per unit time was measured while applying a pressure difference of 100 Pa to the front and back surfaces of the specimen. The test was performed under conditions of a temperature of 20°C and a relative humidity of 65%. After repeating the measurement five times under the same conditions for each test specimen, the average value of the measured air permeability was used as the windproof performance evaluation result for that specimen. The results were derived as follows.

[0192] division subject matter Air permeability (cm³ / cm²·sec) Example 1 Windproof artificial fur composite material for clothing 0.08 Comparative Example 1 Remove windproof and cold blocking layer (30) 12.5 Comparative Example 2 Removal of the insulating non-woven fabric layer (20) 1.9

[0193] In the case of Example 1, the air permeability was measured to be 0.08 cm³ / cm²·sec, confirming that the direct penetration of air by external wind was significantly suppressed. On the other hand, Comparative Example 1, in which the windproof and cold-blocking layer was removed, had an air permeability of 12.5 cm³ / cm²·sec, indicating that the blocking effect against external wind was insufficient.

[0194] In addition, in the case of Comparative Example 2, in which the insulating nonwoven fabric layer was removed, the air permeability was measured to be 1.9 cm³ / cm²·sec, which showed a decrease in air inflow compared to Comparative Example 1 but a relatively higher air permeability compared to Example 1.

[0195] Through this, it was confirmed that the composite structure of Example 1, in which the artificial fur surface layer (10), the insulating nonwoven fabric layer (20), and the windproof and cold blocking layer (30) are laminated, contributes to effectively securing the windproof performance required for winter clothing.

[0197] Test Example 2: Thermal Insulation Test (Thermal Resistance Test)

[0198] This test was conducted to evaluate the thermal insulation properties of the composite material for windproof artificial fur clothing according to Example 1, and to confirm the difference in thermal insulation properties depending on the presence or absence of the insulating nonwoven fabric layer and the windproof / cold blocking layer by comparing it with Comparative Example 1 and Comparative Example 2.

[0199] For the thermal insulation test, the composite material according to Example 1 and the composite materials according to Comparative Examples 1 and 2 were prepared as test specimens, respectively. Each specimen was cut to a size of 200 mm × 200 mm from a composite material formed under the same manufacturing conditions, and was arranged so that the lamination direction during the test was the same as the actual wearing condition.

[0200] Thermal insulation performance was evaluated in accordance with KS K ISO 11092 (Method for Measuring Thermal Resistance and Water Vapor Resistance of Fabrics). The test was conducted using a guarded hot plate; the thermal resistance value was calculated by placing a test specimen on a hot plate maintained at a constant temperature and measuring the amount of heat released to the outside through the specimen. The test conditions were set as follows: plate temperature 35°C, ambient temperature 20°C, relative humidity 65%, and air velocity 0.3 m / s. Three repeated measurements were performed for each test specimen under the same conditions, and the average of the measured thermal resistance values ​​was used as the result of the thermal insulation performance evaluation for that specimen. Thermal resistance values ​​were expressed in units of m²·K / W.

[0201] division subject matter Thermal resistance (m²·K / W) Example 1 Windproof artificial fur composite material for clothing 0.182 Comparative Example 1 Remove windproof and cold blocking layer (30) 0.091 Comparative Example 2 Removal of the insulating non-woven fabric layer (20) 0.134

[0202] In the case of Example 1, the thermal resistance value was measured at 0.182 m²·K / W, confirming that heat loss is effectively suppressed in an external low-temperature environment. In Comparative Example 1, where the windproof and cold-blocking layer was removed, the thermal resistance value was measured at 0.091 m²·K / W, indicating that heat loss due to the inflow of external air occurs relatively significantly.

[0203] In addition, Comparative Example 2, in which the insulating nonwoven fabric layer was removed, was measured to have a thermal resistance value of 0.134 m²·K / W, which showed improved thermal insulation compared to Comparative Example 1 but a lower thermal resistance value compared to Example 1. Through this, it was confirmed that the composite structure of Example 1, in which an artificial fur surface layer, an insulating nonwoven fabric layer, and a windproof and cold-blocking layer are laminated, contributes to stably securing the thermal insulation characteristics required for winter clothing.

[0205] Test Example 3: Heat Retention Rate Test

[0206] This test was conducted to evaluate how stably the composite material for windproof artificial fur clothing according to Example 1 maintains body temperature performance under conditions similar to actual wearing environments, and to verify the thermal retention characteristics by comparing it with Comparative Example 1 and Comparative Example 2, in which a part of the structure was removed.

[0207] The thermal retention rate was evaluated using a heating element-based test that simulates body temperature upon wear. A heating plate with a constant surface temperature was used for the test, and the surface temperature was set to 38°C, considering the human body temperature inside the clothing during winter. After placing the test specimen in close contact with the top of the heating plate, the surface temperature of the outer surface of the specimen (the side of the synthetic fur surface layer) was measured over time using an infrared temperature sensor. The test environment was set to simulate a winter outdoor walking environment with an ambient temperature of 5°C, relative humidity of 60%, and an air velocity of 0.5 m / s. The test was conducted for 30 minutes after the start of heating, and the outer surface temperature was measured at 5-minute intervals. For each test specimen, the test was repeated three times under the same conditions, and the average of the measurements was used. The thermal retention rate was calculated according to the following formula.

[0208] Heat retention rate (%) = (Outer surface temperature at end of test / Outer surface temperature at start of test) × 100

[0209] division subject matter Thermal resistance (m²·K / W) Example 1 Windproof artificial fur composite material for clothing 78 Comparative Example 1 Remove windproof and cold blocking layer (30) 41 Comparative Example 2 Removal of the insulating non-woven fabric layer (20) 59

[0210] In the case of Example 1, the outer surface temperature at the end of the test was maintained at 78% of the initial level, confirming that heat loss over time occurred relatively gradually. In Comparative Example 1, where the windproof and cold-blocking layer was removed, the heat retention rate was measured at 41%, indicating that heat loss due to external air flow proceeded rapidly.

[0211] In addition, Comparative Example 2, in which the insulating nonwoven fabric layer was removed, was measured to have a heat retention rate of **59%**, showing an improved result compared to Comparative Example 1 but a lower heat retention characteristic compared to Example 1.

[0212] Through this, it was confirmed that the composite structure of Example 1, in which a synthetic fur surface layer, an insulating nonwoven fabric layer, and a windproof and cold-blocking layer are laminated, exhibits heat retention characteristics advantageous for maintaining body temperature even under conditions simulating an actual wearing environment. Explanation of the symbols

[0214] Windproof synthetic fur composite material for clothing (1) Artificial fur surface layer (10) Insulating non-woven fabric layer (20) Windproof and cold blocking layer (30) lining layer (40)

Claims

Claim 1 Polyethylene terephthalate resin with an intrinsic viscosity of 0.65 dL / g is melt-spun through a spinning nozzle with a trilobate cross-section at a spinning temperature of 290°C, the spun fiber is cooled by a cross-flow air cooling method using air at 22°C, then stretched with a primary draw ratio of 2.8 times and a secondary draw ratio of 1.3 times, heat-set at 160°C for 60 seconds to control the thermal shrinkage rate to 4.2%, then the fiber is cut to a length of 40 mm to form pile fibers, and an artificial fur surface layer with a pile length of 40 mm and a pile density of 2,000 g / m² is formed using the pile fibers, and the formed artificial fur surface layer is treated under hot air conditions at 120°C for 40 seconds to perform pile end blunting treatment, and 0.5 wt% polyethylene glycol (Mw 1,000), 0.2 wt% alcohol ethoxylate, and 0.1 wt% polyether-modified silicone A step of forming an artificial fur surface layer by applying a hydrophilic treatment agent composed of 50% by weight and the remainder being purified water by a padding method, and then drying at 120°C for 90 seconds; a step of manufacturing an insulating nonwoven fabric layer having a thickness-direction density gradient by mixing 50% by weight of hollow polyester fibers with a hollow ratio of 30%, 30% by weight of three-dimensional crimped polyester fibers, and 20% by weight of low-melting-point binder polyester fibers with a melting point of 120°C to form a fiber web with a basis weight of 120 g / m² and a thickness of 10 mm by a carding method, and then heat-fusing the fibers by setting the heating temperature on the artificial fur surface layer side to 130°C, the heating temperature on the windproof / cold barrier layer side to 145°C, and the heating time to 60 seconds; and a step of casting a solution mixed with 100 parts by weight of hydrophilic polyurethane resin and 100 parts by weight of DMF by a knife coating method to a wet thickness of 100 μm, and then at 95°C The step of drying for 3 minutes to form a membrane with a thickness of 20 μm, forming micropores with an average diameter of 1.0 μm at a density of 30 / cm² using a laser perforation method, and bonding the synthetic fur surface layer and the insulating nonwoven fabric layer is performed at a bonding temperature of 130℃ and a bonding pressure of 0.A method for manufacturing a composite material for windproof artificial fur clothing, comprising: a step of manufacturing a windproof and cold-blocking layer by a heat press method under conditions of 08 MPa and a bonding time of 20 seconds; and a step of combining a non-woven thermal insulation layer and a windproof and cold-blocking layer by performing a dot pattern bonding method with a bonding area ratio of 20% and bonding a polyester plain weave lining layer with a basis weight of 70 g / m² to the back surface of the windproof and cold-blocking layer by a lamination method. Claim 2 A composite material for windproof artificial fur clothing manufactured by the manufacturing method of claim 1, comprising an artificial fur surface layer, an insulating nonwoven fabric layer, and a windproof and cold-blocking layer. Claim 3 A composite material for windproof artificial fur clothing according to claim 2, characterized in that the artificial fur surface layer has a trilobate or quadruple cross-sectional structure and is composed of polyester staple fibers with a heat shrinkage rate controlled to 5% or less through a heat-setting process. Claim 4 A composite material for windproof artificial fur clothing according to claim 3, characterized in that the polyester staple fibers of the artificial fur surface layer have a length of 32 to 45 mm, end blunting treatment is performed at the pile ends through hot air treatment, and a hydrophilic treatment agent is applied to suppress static electricity generation. Claim 5 A composite material for windproof artificial fur clothing according to claim 4, wherein the thermal insulation nonwoven fabric layer is composed of a nonwoven fabric mixed with hollow polyester fibers, polyester fibers having a three-dimensional crimp structure, and low-melting-point binder polyester fibers, and is formed to have a density gradient in the thickness direction, wherein the artificial fur surface layer side is formed with a relatively low-density structure and the windproof / cold-blocking layer side is formed with a relatively high-density structure. Claim 6 A composite material for windproof artificial fur clothing according to claim 5, wherein the windproof and cold-blocking layer is formed of a membrane containing hydrophilic polyurethane, and is characterized by having a non-porous structure as a base and having micropores with an average diameter of 0.5 to 2 μm formed at a density of 20 to 40 pores / cm².

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