A cotton wadding filled thermal clothing based on ergonomic zoning and a preparation method thereof

Abstract

The application discloses a cotton-filling thermal clothing based on ergonomic zoning and a preparation method thereof, and belongs to the technical field of thermal clothing, and solves the problems of the interrelated defects of the traditional full-homogeneous filling of down jackets, such as the cold spots formed by the pressure on the shoulders and elbows, the easy penetration of down, the wet and cold collapse of the armpit and back due to moisture absorption, the uneven filling of the upper part of the down due to the deposition of the down in the large horizontal down pocket, the activity restriction caused by the cold bridge of the quilting, and the filling mismatch and waste caused by the non-zoning of the heat demand of different parts. According to the application, the down is replaced by synthetic fiber cotton to eliminate the cold spots and wet cold, and the down is redistributed to cooperate with the three-dimensional pinch pleat down pocket to prevent collapse; the zoning boundary is determined by multi-state weighted fusion and is avoided to be mismatched; the weight is self-consistent by the iterative convergence of the sample clothing measurement and thermal resistance simulation; the ion wind is used to locally control the moisture to eliminate the static electricity aggregation; the cross-section pleat valley uniformity and the wet-state pressure infrared detection are additionally added to trace the defects and directionally repair the defects.

Description

Technical Field

[0001] This invention relates to the field of thermal clothing technology, and in particular to a cotton-filled thermal clothing based on ergonomic partitioning and its preparation method. Background Technology

[0002] The warmth of thermal clothing, especially down jackets, depends on the still air layer trapped by the filling material. Traditional down jackets generally use a solution of uniformly filling with all down feathers. This solution has a set of interconnected drawbacks under real-world wearing conditions: Firstly, when carrying a backpack, the shoulders are subjected to continuous pressure from the shoulder straps, and the elbows are repeatedly squeezed during the bending motion. This damages the air layer of the down feathers at the pressure points, and the down feathers are very prone to shifting and piling up on both sides of the down hopper after being compressed, creating cold spots where insulation fails at the shoulders and elbows. Furthermore, the stiff down feather shafts are also prone to puncturing the fabric during repeated bending at the elbows, causing down leakage. Secondly, the armpits and the spine along the back are the main areas of the human body that sweat. When down fibers absorb moisture, they stick together and their loft decreases sharply, causing them to collapse. When exposed to cold wind after sweating, the wearer will lose heat quickly in these areas, resulting in a damp and cold problem. Third, the large horizontal stripes of traditional flat quilting result in a large span of down compartments, causing down to accumulate at the bottom of the compartments under gravity, leading to insufficient filling at the top and a collapsed appearance. Furthermore, the dense quilting lines themselves create cold bridges and restrict activities such as raising and bending the arms. Fourth, the uniform filling of down does not differentiate the actual heat needs of different parts of the body. It provides excessive warmth in low-needs areas such as the abdomen, while failing to protect areas that actually need protection, resulting in a misallocation and waste of down filling resources.

[0003] Therefore, a cotton-filled thermal garment based on ergonomic partitioning and its preparation method are proposed to solve or alleviate the above problems. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a cotton-filled thermal garment based on ergonomic partitioning and its preparation method.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A cotton fleece-filled thermal garment based on ergonomic partitioning includes an outer fabric layer, an inner fabric layer, and multiple filling cavities formed by the outer fabric layer and the inner fabric layer. The garment is divided into a pressure-bearing and anti-collapse zone, a moisture-wicking zone, a core insulation zone, and a windproof and heat-locking zone. The pressure-bearing and anti-collapse zone includes the shoulder area and the elbow area, and the moisture-wicking zone includes the armpit area and the posterior mid-spine area. The filling cavities of the pressure-bearing and anti-collapse zone and the moisture-wicking zone are filled with sheet-like synthetic fiber thermal insulation cotton. The core insulation zone includes a chest area and a back area. The filling cavity of the core insulation zone is a three-dimensional pleated down chamber, which is filled with down. The windproof and heat-locking zone is a ring-shaped filling cavity that extends from the back waist to the hem and surrounds the garment. The ring-shaped filling cavity is filled with down, and its down filling per unit area is higher than that of the core heat-insulating zone. The area filled with the synthetic fiber insulation cotton and the area filled with the down are joined together by a seam, and the synthetic fiber insulation cotton and the down do not overlap each other in the thickness direction of the garment.

[0006] Preferably, the down is goose down with a fill power of not less than 800, and the synthetic fiber insulation has a weight of 200-300 g / m². 2 The synthetic fiber insulation cotton filling the armpit area and the posterior mid-spine area is a polymer fiber cotton with unidirectional moisture-wicking properties, and its moisture-wicking direction is from the lining layer to the outer fabric layer.

[0007] Preferably, the synthetic fiber insulation cotton in the elbow area is a single piece of cotton to cover the outer periphery of the elbow joint except for the elbow crease; the armpit area is a one-piece three-dimensional cut piece; and the posterior mid-spine area is a longitudinal recessed channel extending from the back of the neck to the upper back waist. The longitudinal recessed channel is made of four identical cut pieces pressed and sewn together from the inside to the outside: a breathable mesh fabric, a lining layer, a synthetic fiber insulation cotton, and an outer fabric layer.

[0008] This invention also provides a method for preparing cotton-filled thermal garments based on ergonomic partitions, which includes the following steps: Under various different human working conditions, pressure distribution data, sweating distribution data, and heat demand distribution data of the human body surface were collected separately. The multi-condition collected distribution data were weighted and fused according to working conditions. Based on the fused distribution data, the clothing was divided into pressure-bearing and anti-collapse zone, moisture-wicking zone, core warmth zone, and windproof and heat-locking zone. The boundary uncertainty zone between each zone was marked, and the position of the cotton velvet splicing seam was determined according to the line constraint rules for avoiding the boundary uncertainty zone. Based on the functional requirements of each zone, determine the type of filling material and its unit area weight for each zone. Verify the surface temperature distribution of the thermal resistance distribution formed by the determined filling scheme. If the verification result does not meet the convergence criterion, correct the zone boundary and / or unit area weight and re-verify until the convergence criterion is met. Cut pieces for each zone are prepared separately according to the zone. Among them, the core insulation zone is prepared into a three-dimensional pleated fleece pleat cut piece by template pleating, and the actual volume of the formed three-dimensional pleated fleece pleat is calibrated. Under static electricity elimination conditions, after the actual volume is corrected for the determined unit area down filling amount by volume and weight linkage, down is filled into the filling cavity of the core warming area and the windproof and heat-locking area. Synthetic fiber warming cotton is filled and fixed into the cut pieces of the pressure-bearing and anti-collapse area and the moisture-wicking area. The cotton filling part and the down filling part are spliced ​​together as one piece through the splicing seam. Assemble the body, sleeves, and collar into a garment; The garment undergoes multiple performance tests, including random sampling of down filling uniformity. If a test fails, the defect is identified according to the defect tracing rules, and the process is returned to that step for adjustment.

[0009] Preferably, the process involves collecting pressure distribution data, sweating distribution data, and heat demand distribution data of the human body surface under various different working conditions, performing working condition weighted fusion on the multi-condition collected distribution data, dividing the clothing into a pressure-bearing and anti-collapse zone, a moisture-wicking zone, a core warmth-retaining zone, and a windproof and heat-locking zone based on the fused distribution data, marking the boundary uncertainty zones between each zone, and determining the position of the cotton velvet seam according to the line constraint rules for avoiding the boundary uncertainty zones. Specifically, this includes the following steps: Pressure distribution data on the human body surface were collected under static and dynamic loading conditions, respectively. The dynamic loading condition included the pressure state of the load-bearing equipment as it swayed with the gait. Data on the distribution of sweating rate on the human body surface were collected under heat-generating conditions with set exercise intensity. Data on body surface temperature distribution when a person is wearing a standard garment are collected under resting steady-state conditions to characterize the distribution of heat demand. The distributed data collected in multiple states are weighted and fused according to the proportion of each working condition in the target usage scenario to obtain the fused pressure distribution, fused sweating distribution and fused heat demand distribution. Based on the set threshold, the fusion distribution is divided into pressure-bearing and collapse-resistant zones, moisture-wicking zones, core insulation zones, and windproof and heat-locking zones. The areas where the fusion distribution values ​​are within the set fluctuation range of the set threshold are marked as boundary uncertainty zones. The location of the cotton lint splice seam is determined according to the line constraint rules. The line constraint rules stipulate that the splice seam does not fall within the boundary uncertainty zone and does not overlap with the pressure path in the fusion pressure distribution.

[0010] Preferably, the step of determining the type of filling material and its unit area weight for each partition according to the functional requirements of each partition, verifying the surface temperature distribution of the thermal resistance distribution formed according to the determined filling scheme, and correcting the partition boundary and / or unit area weight if the verification result does not meet the convergence criterion and re-verifying until the convergence criterion is met, specifically includes the following steps: For the pressure-bearing and collapse-resistant zones and the moisture-wicking zones, use sheet-like synthetic fiber insulation that can rebound and return to its original shape after being compressed; for the core insulation zone and the windproof and heat-locking zone, use down. Using the same style of fully down-filled garment as a benchmark, the static heat retention value of the benchmark garment in each zone was measured; Based on the principle of equivalent static insulation temperature zone, the original down filler weight per unit area in the pressure-bearing and collapse-resistant zone and the moisture-wicking zone is converted into the weight per unit area of ​​synthetic fiber insulation cotton. The total weight of down saved by conversion in the pressure-bearing and collapse-resistant zone and the moisture-wicking zone is redistributed to the core insulation zone and the windproof and heat-locking zone according to the heat demand weight of each zone, resulting in the redistributed filling scheme. Obtain the surface temperature distribution formed by the redistributed filling scheme, compare it with the obtained fusion heat demand distribution, and correct the partition boundary and / or the unit area weight of each partition when the deviation exceeds the set criterion. Repeat this step until the partition boundary displacement and weight correction between two adjacent reviews are both less than the set convergence value, and the cumulative number of reviews does not exceed the set upper limit.

[0011] Preferably, the step of preparing cut pieces for each zone according to the partitions, wherein the core insulation zone is prepared into a three-dimensional pleated fleece pleat cut piece by template pleating, and the actual volume of the formed three-dimensional pleated fleece pleat is calibrated, specifically including the following steps: Each piece of fabric from the core insulation zone is placed on a pleating template to create three-dimensional pleats, and the cumulative number of times each pleating template is used is recorded. The underarm area is prepared using a one-piece three-dimensional cutting method; Cut four layers of identical cut pieces for the spine area: breathable mesh fabric, lining fabric, synthetic fiber insulation cotton, and outer fabric. Prepare a whole-piece elbow pad that covers the peripheral area of ​​the elbow joint, excluding the cubital fossa. Based on the cumulative number of uses of the pleating template and / or production batches, the actual volume of the formed three-dimensional pleated quilt is sampled and calibrated to obtain the volume deviation of the actual volume relative to the design volume.

[0012] Preferably, under static electricity elimination conditions, after the calibrated actual volume is corrected for the determined unit area down filling amount by volume and weight linkage, down is filled into the filling cavities of the core insulation area and the windproof and heat-locking area, and synthetic fiber insulation cotton is filled and fixed into the cut pieces of the pressure-bearing and anti-collapse area and the moisture-wicking area. The cotton filling part and the down filling part are then spliced ​​together as one piece through the seam. Specifically, the steps include the following: Position and sew the synthetic fiber thermal insulation cotton sheets of each section to the corresponding fabric and lining pieces; Within the set hot pressing temperature and pressure window, the four layers of identical cut pieces in the back and middle spine area are precisely aligned and pressed together. The hot pressing temperature and pressure window are limited to the one-way moisture-wicking properties of the synthetic fiber insulation cotton. First, the elbow patch is partially sewn together in the elbow area, and then the sleeve is spliced ​​to the body. The determined fill amount per unit area is corrected according to the calibrated volume deviation to obtain the corrected fill amount. Down is then filled into the annular filling cavity of the three-dimensional pleated down compartment and the windproof and heat-locking zone according to the corrected fill amount and then sealed. An electrostatic elimination device is installed at the down filling station, and the local ambient humidity at the down filling station is controlled to suppress the electrostatic aggregation of down clusters within the three-dimensional pleats.

[0013] Preferably, assembling the body and sleeves into a garment specifically includes the following steps: Sew the body and sleeves together; Install a zipper on the placket and a hem closure structure to close the annular filling cavity of the windproof and heat-locking zone into a ring along the hem.

[0014] Preferably, the step of performing multiple performance tests on the garment, including a sampling inspection of the uniformity of down filling, and determining the cause of the defect according to the defect tracing rules when the test fails, and then returning to the determined step for adjustment, specifically includes the following steps: Temperature drop curves of different zones in the garment were measured under a set low-temperature environment; Measure the moisture permeability of the axillary region and the posterior mid-spine region; The rate of decrease in loft and warmth retention of garments in each filling area was measured after a set number of machine washes. Apply a set number of cyclic pressures to the shoulder and elbow areas, and measure the thickness recovery rate of the filler layer after decompression. Select garments from each batch, cut open the three-dimensional pleated down compartments, and test the filling uniformity at the pleats and scale protrusions. If any test fails to meet the set pass criteria, the cause of the defect is determined according to the defect tracing rules, and the process is returned to the determined step. Specifically, if the fill weight is qualified and the appearance is full, but the core insulation area is insufficient, it is determined to be a volume and weight mismatch, and the process is returned to recalibrate the volume; if the uniformity of the pleated fill is unqualified, it is determined to be static electricity concentration and underfilling, and the process is returned to adjust the static electricity elimination conditions; if the insulation is insufficient or cold spots are concentrated at the boundary of the zone, it is determined to be zone misalignment, and the process is returned to re-merge the zones; if the overall insulation or moisture permeability is unqualified, the process is returned to adjust the filling scheme.

[0015] The present invention has the following beneficial effects: 1. The thermal clothing of this invention first identifies the areas of the human body that are subjected to long-term pressure, where sweating is likely to occur, and where warmth is most needed. Based on this principle, the clothing is divided into pressure-bearing and anti-collapse zones, moisture-wicking zones, core warmth zones, and windproof and heat-locking zones. Down is no longer used in areas that are frequently compressed, such as the shoulders and elbows, as well as areas that sweat a lot, such as the armpits and the midline of the back. Instead, sheet-like synthetic fiber cotton that can bounce back after being compressed and does not collapse after being damp is used. The cotton and down are sewn together without being stacked on top of each other. This avoids the thick and stuffy feeling of the old method of layering and covering, and also avoids the repeated stacking of two types of filling in the same area. All the down that is replaced is used to fill the front, back, and lower back where warmth is truly needed. The down is supported by three-dimensional pleated down compartments on the front and back to prevent the down from sagging. The entire garment is warmer where it needs to be and breathable where it needs to be. The total filling volume is not increased, but the warmth, sweat wicking, ease of movement, and crisp appearance are all improved. 2. This invention uses a state-based measurement and proportional synthesis method to determine the zones. When measuring pressure, the wearer carries a bag; when measuring sweating, the wearer moves; and when measuring body temperature, the wearer sits quietly. After each of the three types of data is measured, a distribution map is synthesized according to the time proportion of each state in actual wear. Deviations between several measurements are canceled out during synthesis. The zone lines drawn in this way are closer to the real situation of the human body. At the same time, areas where the values ​​swing back and forth near the boundary line and are difficult to classify either side are specially marked. It is stipulated that cotton velvet seams are not allowed to be sewn into such areas or pressed on the stress lines of the shoulder straps. The material junctions are kept away from the most sensitive and stress-bearing areas of the body. Even if the boundary is drawn slightly off, problems such as cold shoulders and cold and damp back will not appear at the edge of the zone. 3. This invention makes the determination of zoning and weight a process that can be finalized in a few rounds of verification. After the saved down is used to fill the front and back, the thickness of the garment changes in different parts, and the temperature distribution on the body changes accordingly. The data used to divide the zoning will no longer match. This invention makes a sample garment for actual measurement or uses calculation to verify it after each filling plan is finalized. If the temperature distribution does not match, the boundary or weight is modified. The modification is considered finalized when it is small enough. It also stipulates that the process must be completed after a maximum of a few rounds of verification. Zoning and weight can be finalized within a limited number of rounds, which avoids getting stuck in repeated cycles and does not prolong the development time. What to fill and how much to fill in each part is calculated step by step according to the data. If a different group of people does it in the same way, they can get the same result. 4. In the production process, this invention records the number of times each pleating template is used. After a certain number of uses, the actual size of the pressed down hopper is checked. When filling down, the amount of down is increased or decreased accordingly based on the actual size. This ensures that the tightness of the down in the hopper is always maintained at a predetermined level. As the template wears down or the fabric changes in dryness and wetness, the down hopper will gradually shrink. This will prevent the situation where the down is filled to the same amount but ends up being squeezed too tightly and not warm enough. The function of the three-dimensional down hopper in maintaining fluffiness and locking in air will not be destroyed by production fluctuations. At the same time, in response to the problem of static electricity in the down in the drying workshop, where down clusters are sucked into the pleats and squeezed into a ball while other areas are not filled enough, this invention sets up an ion wind device in the down conveying pipe and down filling port to eliminate static electricity. Furthermore, it only humidifies the down filling station and does not affect the environment of the sewing station. This solves the problem of static electricity and prevents the moisture-wicking cotton from absorbing moisture and being damaged during sewing. It solves the two originally mutually exclusive problems of eliminating static electricity and protecting the cotton material at the same time. 5. This invention fills the gaps in the inspection process that conventional methods cannot detect. Even garments with insufficient down filling deep in the folds will still feel substantial and have a full appearance, which cannot be detected by simply weighing, looking, or randomly checking the loft. In addition to conventional tests for insulation, breathability, washability, and pressure resistance, this invention periodically cuts open the down compartments to check whether the down filling in the folds is even. Furthermore, it wets the garment, applies pressure simulating shoulder strap pressure, and places it in a low-temperature environment for infrared thermal imaging to specifically detect cold spots in the seams that are not visible on dry, new garments, thus identifying defects. Instead of simply adding fleece to every garment, we investigate the root cause of each problem. If a garment is heavy and looks full but doesn't provide warmth, we check the template and the size of the fleece hopper. If the fleece filling in the pleats is uneven, we adjust the anti-static measures. If cold spots always appear at the boundaries of the zones, we check the zone data. Only if the garment is not warm overall do we adjust the weight. We identify the root cause and then make changes. We don't mistake overfilling for underfilling, or add more fleece to make it more compacted, or make it worse with each repair. From measuring human body data to the finished garment leaving the factory, we check and make changes every step of the way, ensuring that the performance of the design is implemented in every single garment. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram showing the distribution of the inner PI cotton and down in this invention; Figure 2 This is a schematic diagram showing the distribution of PI cotton and down in the sleeve lining of this invention; Figure 3 This is a flowchart of the present invention; Figure 4 This is a graph showing the shoulder pressure-bearing heat retention rate in Experiment 1 of this invention; Figure 5 This is a wet static temperature drop curve for Experiment 1 in this invention; Figure 6 This is a comparison diagram of the temperature difference at various cold points in Experiment 1 of this invention; Figure 7 This is a graph showing the decrease in heat retention after machine washing in Experiment 1 of this invention. Figure 8 This is a comparison chart of the total weight in the same temperature region in Experiment 1 of this invention; Figure 9 This is a diagram illustrating the convergence process of the partition boundary in Experiment 2 of this invention. Figure 10 This is a diagram showing the density drift of the fleece hopper in Experiment 2 of this invention. Figure 11 This is a trend chart of the uniformity of pleat filling in Experiment 2 of this invention; Figure 12 This is a comparison chart of the moisture permeability retention rate in Experiment 2 of this invention; Figure 13 This is a graph showing the rework failure rate trend in Experiment 2 of this invention; Figure 14 This is a comparative diagram of the conventional preparation method and the complete method in Experiment 2 of this invention.

[0018] In the diagram: 1. Shoulder area; 2. Armpit area; 3. Posterior mid-spine area; 4. Front chest area; 5. Back area; 6. Elbow area. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0021] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0022] In the description of this invention, it should be understood that the terms center, up, down, left, right, vertical, horizontal, inside, outside, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0023] Furthermore, the terms first, second, third, etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0024] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "setup," "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0025] A type of cotton-filled thermal garment based on ergonomic partitioning, such as Figure 1 and Figure 2 As shown, the garment includes an outer fabric layer, a lining layer, and multiple filling cavities formed by the outer fabric layer and the lining layer. The garment is divided into a pressure-bearing and anti-collapse zone, a moisture-wicking zone, a core insulation zone, and a windproof and heat-locking zone. The pressure-bearing and anti-collapse zone includes the shoulder area 1 and the elbow area 6. The moisture-wicking zone includes the underarm area 2 and the posterior mid-spine area 3. The filling cavities of the pressure-bearing and anti-collapse zone and the moisture-wicking zone are filled with sheet-like synthetic fiber insulating cotton. The core insulation zone includes the front chest area 4 and the back area 5. The filling cavity structure of the core insulation zone is a three-dimensional pleated fleece compartment. The garment features a three-dimensional, pleated fleece trough filled with down. The windproof and heat-locking zone is a ring-shaped filling cavity extending from the back waist to the hem and encircling the body. This ring-shaped filling cavity is also filled with down, and its down filler density per unit area is higher than that of the core insulation zone. The areas filled with synthetic fiber insulation and down are seamlessly joined together via seams, ensuring no overlap in the garment's thickness direction. The down is goose down with a fill power of at least 800, and the synthetic fiber insulation has a weight of 200–300 g / m². 2The synthetic fiber insulation cotton filling in the armpit area 2 and the posterior mid-spine area 3 is a polymer fiber cotton with one-way moisture-wicking properties. Its moisture-wicking direction is from the lining layer to the outer fabric layer. The synthetic fiber insulation cotton in the elbow area 6 is a whole piece of cotton to cover the outer periphery of the elbow joint except for the elbow crease. The armpit area 2 uses a one-piece three-dimensional cut piece. The posterior mid-spine area 3 is a longitudinal recessed channel extending from the back of the neck to the upper back waist. The longitudinal recessed channel is made of four identical cut pieces pressed and sewn together from the inside to the outside: breathable mesh, lining layer, synthetic fiber insulation cotton and outer fabric layer.

[0026] Among them, the pressure-bearing and anti-collapse zone and the moisture-wicking zone are adjacent to the core insulation zone, and the boundaries between each adjacent zone are defined by the seam; the shoulder area 1 covers the strip area extending along the shoulder line on both sides of the shoulder seam, the elbow area 6 covers the outer periphery of the sleeve corresponding to the elbow joint, the armpit area 2 covers the bottom of the armhole and the side chest area connected to it, and the back mid-spine area 3 is a strip area extending longitudinally along the midline of the back.

[0027] The working principle is as follows: There are three problems with all-down clothing: the shoulders and elbows are constantly compressed, the down becomes less warm after being flattened, the armpits and the midline of the back tend to sweat, the down collapses when damp, and the warmth is lost; and the filling is evenly distributed all over the body, without distinguishing where it is needed or not.

[0028] This garment is designed according to the principles of human anatomy: areas subject to pressure, areas that sweat, and areas requiring the most warmth. It is divided into pressure-bearing and anti-collapse zones, moisture-wicking zones, core warmth zones, and windproof and heat-locking zones. The pressure-bearing and sweat-prone areas are filled with sheet-like synthetic fiber cotton. This cotton bounces back after being compressed and doesn't collapse when damp, ensuring the insulation layer in these areas maintains its thickness and traps stagnant air. The cotton and down are sewn together without being layered, preventing the garment from feeling thick and stuffy. Used down is replenished to the chest, back, lower back, and hem according to the required warmth. Combined with three-dimensional pleated down compartments that are shorter and larger, preventing down from sagging, the total weight remains unchanged while improving warmth. While this zoned structure is easy to draw on paper, achieving accuracy and stability in each garment relies on the following manufacturing method. Each step in this method corresponds to a crucial step in implementing this structure.

[0029] This invention also provides a method for preparing cotton-filled thermal clothing based on ergonomic partitioning, such as... Figure 3 As shown, it includes the following steps: Step S1, Multi-state data acquisition and fusion partitioning: Under various different human working conditions, pressure distribution data, sweating distribution data, and heat demand distribution data of the human body surface are collected respectively. The working condition weighted fusion of the multi-state collected distribution data is performed. Based on the fused distribution data, the clothing is divided into pressure-bearing and anti-collapse zone, moisture-wicking zone, core warmth zone, and windproof and heat-locking zone. The boundary uncertainty zone between each zone is marked, and the position of the cotton velvet splicing seam is determined according to the line constraint rules to avoid the boundary uncertainty zone.

[0030] In some embodiments, step S1 includes: collecting pressure distribution data of the human body surface under static and dynamic weight-bearing conditions, wherein the dynamic weight-bearing condition includes the pressure state of the weight-bearing equipment swinging with the gait; collecting sweating rate distribution data of the human body surface under a set exercise intensity heat generation condition; collecting body surface temperature distribution data of the human body wearing a standard garment under a resting steady-state condition to characterize the heat demand distribution; assigning weights to each distribution data collected in multiple states according to the proportion of each condition in the target usage scenario and weighted fusing them to obtain a fused pressure distribution, a fused sweating distribution, and a fused heat demand distribution; dividing each fused distribution into a pressure-bearing and collapse-resistant zone, a moisture-wicking zone, a core warmth-insulating zone, and a windproof and heat-locking zone according to a set threshold, and marking the area where the fused distribution value is within a set fluctuation range of the set threshold as a boundary uncertainty zone; and determining the position of the cotton velvet splice seam according to the line constraint rules.

[0031] The thresholds are taken from the intersection of the performance of the two filling materials: the pressure threshold is set as the pressure value corresponding to the decay of the heat preservation value of the down filling layer after being compressed to the equivalent of that of synthetic fiber heat preservation cotton in the same heat preservation temperature zone. That is, when the fusion pressure value of a certain part of the body surface exceeds this pressure value, down is not as good as cotton in that part, so it is classified into the pressure-bearing and anti-collapse zone; the sweating threshold is similarly set as the sweating rate of the body surface corresponding to the down absorbing moisture and collapsing, and the heat preservation value dropping to a level lower than that of the wet heat preservation value of the moisture-wicking cotton.

[0032] Specifically, the static load-bearing condition involves the wearer standing statically with a standard backpack of a set weight (15 kg in this embodiment). Surface pressure distribution is collected using flexible pressure-sensing pads placed on the shoulders, back, and waist. The dynamic walking load-bearing condition involves the same wearer carrying the same set weight on a treadmill for a set duration at a set cadence (100-120 steps / minute in this embodiment). Peak pressure and pressure envelope are collected at each measuring point within one or more complete gait cycles to cover the actual pressure state caused by the shoulder straps shifting outwards towards the shoulder and upper edge of the scapula as the gait swings. The subjects cover various body types and load-bearing methods. In this embodiment, the subjects are divided into at least three groups based on height and body mass index, including methods where the load is primarily borne by the shoulder straps and methods where the load is shared by the waist belt. A weighted average or upper envelope is taken for the data at the same measuring point across different subjects.

[0033] Specifically, the collection of sweat rate distribution data involves the wearer exercising continuously at a moderate intensity for a set duration under an ambient temperature of 20-24℃ (40 minutes on an incline treadmill in this example). The sweat rate at each measuring point is obtained by weighing sweat-absorbing patches distributed at various measuring points on the torso and upper limbs or by using a humidity sensor array. The collection of body surface temperature distribution data involves the wearer wearing a full-down-filled standard version of the same style as the target garment and resting for a set duration (20 minutes in this example). The body surface temperature distribution is obtained using an infrared thermal imager to characterize the heat demand distribution of each part of the body.

[0034] Specifically, the weighted fusion of working conditions involves determining the weight of each working condition according to the time occurrence ratio of each working condition in the target usage scenario. In this embodiment, the usage scenario is winter heavy-load hiking. The weight of dynamic walking load-bearing working condition is 0.6, the weight of static load-bearing working condition is 0.25, and the weight of resting working condition is 0.15. The normalized distribution values ​​of the same body surface location under each working condition are weighted and summed point by point to obtain the fused pressure distribution, fused sweating distribution, and fused heat demand distribution. Since the three types of data are collected under mutually exclusive physiological states, this step does not require the three types of data to be obtained under the same working condition. Instead, the boundary deviation caused by abnormal collection is converged into the fused distribution through the above point-by-point weighted fusion.

[0035] Specifically, the zoning and boundary uncertainty zone designation involves classifying the clothing area corresponding to the region where the value in the integrated pressure distribution exceeds a set pressure threshold as the pressure-bearing and collapse-resistant zone; classifying the clothing area corresponding to the region where the value in the integrated sweating distribution exceeds a set sweating threshold as the moisture-wicking zone; classifying the torso area with high heat demand that does not belong to the aforementioned two zones as the core insulation zone; and classifying the annular area from the lower back to the hem as the windproof and heat-locking zone. In this embodiment, the abdominal area and the side waist area are also classified as low-demand buffer zones. The low-demand buffer zones are filled with down, and their down filling per unit area is lower than that of the core insulation zone. For any body surface area where the integrated distribution value is within the set fluctuation range of the corresponding set threshold (±10% of the threshold in this embodiment), it is designated as the boundary uncertainty zone.

[0036] Among them, the line constraint rules include at least the following: the cotton velvet seam does not fall within any boundary uncertainty zone; the cotton velvet seam does not overlap with the pressure path in the fusion pressure distribution; the pressure path is a strip-shaped area in the fusion pressure distribution where the pressure value continuously exceeds a set pressure threshold; the boundary uncertainty zone is entirely incorporated into the adjacent pressure-resistant and collapse-resistant zone or moisture-wicking zone. That is, when the zone is uncertain, the uncertainty zone is incorporated into the cotton velvet side according to the principle of functional priority. After being constrained by the above rules, the shoulder seam is arranged outside the shoulder strap pressure path and falls in a position where both pressure and sweating are in a low-sensitivity range, thus avoiding the seam, which is a material abrupt change line, from falling in the middle of the gradient zone where physiological parameters are most sensitive.

[0037] When the pressure-bearing and collapse-resistant zone uses a gradient cotton body with a load-bearing eave, the requirement in the line constraint rules that the splicing seam does not overlap with the pressure-bearing path can be relaxed. The synthetic fiber thermal insulation cotton in the pressure-bearing and collapse-resistant zone is a gradient cotton body with a density that varies along the thickness direction of the garment. The density of the gradient cotton body on the side closer to the fabric layer is greater than the density on the side closer to the lining layer. The gradient cotton body extends integrally toward the side of the splicing seam to form a load-bearing eave. The density of the load-bearing eave is not less than the density of the gradient cotton body on the side closer to the fabric layer. The load-bearing eave crosses the splicing seam and covers the edge of the adjacent three-dimensional pleated fleece hopper and the fabric layer, so that the splicing seam and the edge of the fleece hopper are located within the pressure shielding area formed by the load-bearing eave.

[0038] The reason for designing the support visor is that sometimes it's impossible to draw the correct seam allowance. For people with broader shoulders, or those who habitually use a waist belt to distribute the weight of their backpack, there isn't a seam that completely avoids the stress on their shoulders. The seams and the edges of the down filling will inevitably be compressed. Once compressed, moisture seeps into the down filling more quickly through the needle holes, and the down becomes compacted. By making the cotton body dense on the outside and soft on the inside, the outer high-density layer absorbs the pressure from the shoulder straps and spreads it out across the entire cotton body, while the inner low-density layer continues to provide warmth. The extended support visor is an extension of this high-density cotton layer, extending from the cotton area all the way to the edge of the adjacent down filling. When the shoulder straps press down, the force first falls on the visor and then travels back to the main body of the cotton area. The seams and the edges of the down filling under the visor bear almost no stress.

[0039] In this way, the safety of the seam no longer depends on where it is drawn, but on the supporting structure covering it. This applies to all shapes and backing methods. Since the seam is not under pressure, the pinholes will not be pressed or stretched. The cause of moisture seepage and down leakage is eliminated. For the preparation method, the rule of avoiding pressure paths in step S1 can be relaxed, and the finalization of the design can be done faster.

[0040] Step S2, Filling scheme determination and convergence iteration: Determine the type of filling material and its unit area weight for each partition according to the functional requirements of each partition. Verify the surface temperature distribution of the thermal resistance distribution formed by the determined filling scheme. If the verification result does not meet the convergence criterion, correct the partition boundary and / or unit area weight and re-verify until the convergence criterion is met.

[0041] In some embodiments, step S2 includes: material matching, matching sheet-like synthetic fiber insulation cotton that can rebound after being compressed to the pressure-bearing and collapse-resistant zone and the moisture-wicking zone, and matching down to the core insulation zone and the windproof and heat-locking zone; using a full-down-filled garment of the same style as a benchmark, measuring the static insulation value of the benchmark garment in each zone; according to the principle of equivalent static insulation temperature zones, converting the original down filler weight per unit area in the pressure-bearing and collapse-resistant zone and the moisture-wicking zone into the unit area weight of synthetic fiber insulation cotton; redistributing the total down weight saved in the pressure-bearing and collapse-resistant zone and the moisture-wicking zone due to the conversion to the core insulation zone and the windproof and heat-locking zone according to the heat demand weight of each zone, to obtain the redistributed filling scheme; convergence and verification, obtaining the body surface temperature distribution formed by the redistributed filling scheme, comparing it with the fused heat demand distribution obtained in step S1, and correcting the zone boundaries and / or the unit area weight of each zone when the deviation exceeds the set criteria, and repeating this step.

[0042] Specifically, the material matching involves using goose down with a fill power of not less than 800, and in this embodiment, it is goose down with a fill power of 850; the weight of the pressure-bearing and collapse-resistant zone is 200–300 g / m². 2 The sheet-like synthetic fiber thermal insulation cotton; the armpit area 2 and the back mid-spine area 3 are matched with polymer fiber cotton with unidirectional moisture-wicking properties, the moisture-wicking direction is from the lining layer to the fabric layer, so as to realize the expulsion of sweat from the inside to the outside and the blocking of cold air from the outside to the inside.

[0043] Specifically, in this embodiment, the equivalent conversion is that the fill weight per unit area is 100 g / m². 2 The down filling is converted to a weight of 250 g / m². 2 The synthetic fiber thermal insulation cotton was used, and the static thermal insulation temperature zone of the zone before and after conversion was checked to be consistent in an environment of -10℃. For the moisture-wicking zone, considering that its actual working state is a wet state rather than a dry state, the conversion was corrected by using the wet thermal insulation value measured after quantitative humidification to correct the dry conversion result, so that the zone still meets the thermal insulation temperature zone requirements in a wet state. The conversion also introduced a machine wash attenuation redundancy coefficient, that is, the converted weight was adjusted upward according to the thermal insulation attenuation rate of the synthetic fiber thermal insulation cotton after a set number of machine washes. In this embodiment, it is 20 times, so that the converted weight still meets the static thermal insulation temperature zone requirements after multiple machine washes within the service life of the garment.

[0044] Specifically, the weight redistribution involves calculating the total weight of down saved by substituting cotton for down in the pressure-bearing and collapse-resistant zones and the moisture-wicking zones. Based on the respective heat demand weights and area proportions of the core insulation zone and the windproof and heat-locking zone, the saved total weight of down is allocated to the core insulation zone and the windproof and heat-locking zone to obtain the final down filler per unit area for each zone. The down filler per unit area in the windproof and heat-locking zone is higher than that in the core insulation zone, while the down filler per unit area in the low-demand buffer zone is lower than that in the core insulation zone.

[0045] Specifically, the convergence verification involves the following steps: Since the redistribution alters the thermal resistance distribution across different areas of the garment, the surface temperature distribution when wearing the garment differs from the distribution obtained in step S1 when the baseline garment was worn. Therefore, a sample garment is fabricated according to the redistributed filling scheme for actual measurement, and / or a garment zone thermal resistance simulation model is established for calculation to obtain the surface temperature distribution under this filling scheme. This is then compared zone by zone with the fused heat demand distribution obtained in step S1. If the deviation of any zone exceeds a set criterion, the boundary position and / or unit area weight of that zone are corrected, and the verification process is repeated. This continues until the zone boundary displacement between two adjacent verifications is less than a set convergence value (10 mm in this embodiment) and the weight correction is less than a set convergence value (5 g / m² in this embodiment). 2 The algorithm determines convergence and locks the partition template and filling scheme. There is an upper limit to the cumulative number of reviews, which is 5 in this embodiment. If convergence is not achieved after reaching the upper limit, the algorithm returns to step S1 to re-examine the assignment of weights for each working condition. Through this limited number of convergence iterations, the problem of partitions being rewritten based on the redistribution results and falling into a non-convergence loop is avoided.

[0046] When a moisture-sensitive variable-pore boundary transition zone is provided between the moisture-wicking zone and the core insulation zone, the convergence criterion is relaxed to determine convergence if the zone boundary falls within the coverage area of ​​the transition zone. The boundary transition zone is provided between the moisture-wicking zone and the core insulation zone. The lining layer of the boundary transition zone is a moisture-sensitive variable-pore fabric woven from a first yarn and a second yarn with different moisture absorption expansion rates. In the dry state, the first yarn and the second yarn adhere to each other, causing the breathable pores of the moisture-sensitive variable-pore fabric to close. In the moisture-absorbing state, the expansion of the first yarn is greater than that of the second yarn, causing the two to separate and the breathable pores to open. The pore opening increases with the increase of moisture content.

[0047] This transition zone is designed because the area of ​​perspiration varies from person to person and also changes with the amount of exercise. Boundaries determined by measurement data can only align with the average situation of a sample; on a specific individual, they will always deviate slightly. This deviated area, according to the design, is a warm zone, not breathable, while areas that should sweat become stuffy. With the transition zone, the boundary is no longer a fixed line, but a zone that opens and closes according to the body's state. This lining is woven from two types of yarns that expand to different degrees when wet. When a person is not sweating, the two yarns are close together, and the pores are closed, creating the warm zone. When a person sweats, the more expanded yarn stretches the less expanded yarn, opening the pores to release moisture, immediately creating a breathable zone. When sweating stops, the yarn shrinks back, and the pores close again. The breathable range is determined by whether the wearer is sweating at that moment, no longer by the data from the sampling stage. Even if the boundary is slightly off, it won't cause stuffiness or drafts. One design can adapt to people of different body types and levels of activity. For the convergence verification in step S2, the final version is considered complete as long as the boundary falls within the range covered by the transition zone. The criteria have been relaxed, and the back-and-forth verification of adjusting the boundary millimeter by millimeter has been largely eliminated.

[0048] Step S3, Fabric Piece Preparation and Wool Chamber Volume Calibration: Fabric pieces for each zone are prepared according to the partitions. The core insulation zone is prepared with a template pleating method to create a three-dimensional pleated wool chamber fabric piece. The actual volume of the formed three-dimensional pleated wool chamber is then calibrated.

[0049] In some embodiments, step S3 includes: placing each piece of the core insulation area's fleece pleat on a pleating template to create three-dimensional pleats, and recording the cumulative number of times each pleating template is used; preparing a piece for the underarm area 2 using a one-piece three-dimensional cutting method; cutting four layers of identical pieces for the back spine area 3, including a breathable mesh fabric piece, a lining piece, a synthetic fiber insulation cotton piece, and an outer fabric piece; preparing a whole piece of elbow cotton covering the outer periphery of the elbow joint, excluding the elbow crease; and volume calibration, sampling and calibrating the actual volume of the formed three-dimensional pleated fleece pleat according to the cumulative number of times the pleating template is used and / or the production batch, to obtain the volume deviation of the actual volume relative to the designed volume.

[0050] Specifically, the three-dimensional pleating involves multiple three-dimensional pleats arranged along the cut piece to form a scale-like array of three-dimensional down cells. The volume gain of the three-dimensional pleats makes the down cell volume per unit area of ​​the core insulation area larger than that of the flat quilted down cell, thereby bearing a higher down filling amount per unit area after redistribution. The length of a single three-dimensional pleated down cell along the direction of gravity does not exceed a set length to prevent down from depositing and collapsing to the bottom of the down cell under the action of gravity. Before pleating, the moisture regain of the fabric is controlled within a set range. In this embodiment, the fabric is balanced and rehydrated in a constant temperature and humidity environment before being pleated on the template to eliminate the gradual shallowing of the pleat depth caused by the decrease in fabric moisture regain and the increase in elasticity in a low humidity environment.

[0051] Specifically, template management involves establishing a usage log for each pleating template and accumulating the number of times it is used. When the accumulated number of uses exceeds the set threshold, the template is repaired or replaced to prevent wear and tear on the hot-pressing and shaping area of ​​the template and pleat position displacement from causing hidden drift in the pleat depth of the pleat.

[0052] Specifically, the volume calibration involves sampling according to the cumulative usage interval of the template and / or production batch, obtaining the actual internal volume of the formed quilt by three-dimensional scanning of the sampled quilt pieces, and / or injecting a fixed-volume medium into the formed quilt and reading the injection volume to determine the actual volume; comparing the actual volume with the design volume to obtain the volume deviation of the template for that batch, and transmitting the volume deviation along with the batch information of the cut pieces to step S4.

[0053] Step S4, Linked Filling and Splicing: Under static elimination conditions, after adjusting the unit area down filling amount determined in Step S2 according to the actual volume calibrated in Step S3, down is filled into the filling cavities of the core insulation area and the windproof and heat-locking area. Synthetic fiber insulation cotton is filled and fixed into the cut pieces of the pressure-bearing and anti-collapse area and the moisture-wicking area. The cotton filling part and the down filling part are spliced ​​together as one piece through the splicing seam.

[0054] In some embodiments, step S4 includes: positioning and sewing the synthetic fiber thermal insulation cotton pieces of each zone with the corresponding fabric pieces and lining pieces; precisely aligning and pressing the four layers of the same shape pieces in the back spine region 3 within the set hot pressing temperature and pressure window; firstly, completing the partial sewing of the whole elbow cotton piece in the elbow region 6, and then splicing the sleeve with the body; linked down filling, adjusting the down filling amount per unit area determined in step S2 according to the volume deviation calibrated in step S3 to obtain the adjusted down filling amount, and filling down into the annular filling cavity of the three-dimensional pleated down chamber and the windproof and heat-locking zone according to the adjusted down filling amount and sealing it; static electricity elimination, setting a static electricity elimination device at the down filling station, and controlling the local environmental humidity of the down filling station.

[0055] Specifically, the four-layer pressing involves four identical cut pieces in the posterior mid-spine region 3, arranged from the inside out as a breathable mesh fabric piece, a lining piece, a synthetic fiber insulation cotton piece, and an outer fabric piece. After precise alignment, the four cut pieces are pressed and sewn together to form a longitudinal recessed channel extending from the back of the neck to the upper back waist. The heat pressing temperature, pressure, and time used for pressing are limited within a set window, which is limited to not damaging the unidirectional moisture-wicking fiber orientation of the synthetic fiber insulation cotton. After pressing, the moisture permeability of this area is measured to confirm that the unidirectional moisture-wicking performance is not damaged.

[0056] Specifically, the linkage filling process involves ensuring that the ratio of the corrected filling amount to the calibrated actual volume is equal to the ratio of the filling amount per unit area to the designed volume determined in step S2. That is, when the actual volume is less than the designed volume, the filling amount is reduced proportionally, and when the actual volume is greater than the designed volume, the filling amount is increased proportionally. This ensures that the filling density of the down in the down hopper is always maintained at the designed density, preventing over-compaction due to volume reduction or under-filling due to volume increase. When the volume deviation transmitted in step S3 exceeds the set deviation threshold (±5% of the designed volume in this embodiment), the filling of the batch of cut pieces is stopped, and the process returns to step S3 to recalibrate the volume and repair the template.

[0057] Specifically, static electricity elimination involves installing an ion wind device on the inner wall of the down conveying pipe and at the down filling port of the down filling machine to continuously eliminate static electricity from the down fluff during transport, thus preventing the down fluff from agglomerating deep into the three-dimensional folds and around the seams due to static adsorption and causing underfilling of the folds. At the same time, a partial enclosure is set up at the down filling station and the relative humidity of the environment inside the enclosure is controlled within a set range, which is 45% to 55% in this embodiment. This humidity control is only applied to the down filling station and does not change the environmental humidity of the sewing station, so as to avoid overall humidification causing the synthetic fiber thermal insulation cotton to absorb moisture during the sewing process and damage its one-way moisture-wicking performance.

[0058] Specifically, the splicing involves aligning the edge of the synthetic fiber insulating cotton sheet with the edge of the adjacent down filling at the seam between the cotton filling area and the down filling area, ensuring that the two do not overlap in the thickness direction of the garment. This eliminates the redundant cotton covering layer while removing cold bridges at the seam.

[0059] Step S5, Garment Assembly: Assemble the body and sleeves into a garment, specifically including the following steps: Sew the body and sleeves together; Install the placket zipper and hem gathering structure so that the annular filling cavity of the windproof and heat-locking area closes into a ring along the hem.

[0060] Step S6, Performance Verification and Defect Tracing: Perform multiple performance tests on the garment, including random sampling of down filling uniformity. If the test fails, determine the step to which the defect originates according to the defect tracing rules, and return to the determined step for adjustment.

[0061] In some embodiments, step S6 includes: temperature drop curve testing, measuring the temperature drop curve of each section of the garment under a set low temperature environment; moisture permeability testing, measuring the moisture permeability of the underarm area 2 and the back mid-spine area 3; washability testing, measuring the loft reduction rate and warmth reduction rate of each filling area after the garment has been machine washed a set number of times; pressure resistance and rebound testing, applying a set number of cyclic pressures to the shoulder area 1 and the elbow area 6, and measuring the thickness recovery rate of the filling layer after pressure relief; sectional inspection of filling uniformity, randomly selecting garments from batches, dissecting the three-dimensional pleated filling chambers, and detecting the filling uniformity at the three-dimensional pleat valleys and scale protrusions; and defect tracing, if any test fails to meet the set pass criteria, determining the cause of the defect according to the defect tracing rules and returning to the determined step.

[0062] The specific criteria for passing each test are as follows: For the temperature drop curve test, the set low-temperature environment is -10℃, and the passing criterion is that the deviation between the temperature drop curve of each section of the garment and the temperature drop curve of the same full-down benchmark garment is within the set range; For the washability test, the passing criterion is that after a set number of machine washes (20 times in this example), the loft reduction rate of each filling area does not exceed the set ratio; For the pressure rebound test, the passing criterion is that after a set number of cycles of pressure, the thickness recovery rate of the filling layer in shoulder area 1 and elbow area 6 is not lower than the set ratio; For the sampling inspection of the uniformity of the down filling, the passing criterion is that the ratio of the down filling density at the three-dimensional pleats to the down filling density at the scale protrusions is not lower than the set ratio.

[0063] Step S6 further includes infrared thermal imaging detection of the garment under simulated working conditions of superimposed wet and pressure conditions: quantitative humidification of the moisture-wicking area of ​​the garment to simulate the wet state after sweating, while applying a load simulating shoulder strap compression to the shoulder area, and detecting the temperature distribution of the outer surface of the garment with an infrared thermal imager in a low-temperature environment. The pass criterion is that no continuous strip-shaped low-temperature area appears along the cotton velvet seam and three-dimensional pleat line. This detection is specifically used to capture cold bridges in the seam and pleat line that cannot be seen under conventional detection conditions of dry state, new garment, and no load.

[0064] Specifically, the defect tracing rules are as follows: When the down filling weight is recorded as qualified and the garment appears full, but the core insulation area is insufficient, it is determined to be due to over-compaction caused by a mismatch between the down filling volume and the down filling weight. The process returns to step S3 to recalibrate the volume and repair the template, rather than simply increasing the down filling weight. This avoids the negative feedback of misjudging it as insufficient weight and continuing to increase the down filling amount, which would further worsen the over-compaction. When the down filling uniformity of the pleats is unqualified or there are strip-shaped low-temperature areas at the pleats, it is determined to be due to static electricity accumulation and underfilling. The process returns to step S4 to adjust the static electricity elimination device and the local humidity of the down filling station. When the insulation is insufficient or cold spots are concentrated at the boundary of the zone and show a distribution pattern related to body shape or carrying method, it is determined to be due to zone misalignment. The process returns to step S1 to re-examine the working condition weight and re-integrate the zones. When none of the above characteristics are met, and the insulation or moisture permeability is unqualified overall, the process returns to step S2 to adjust the type of filling material and / or the weight per unit area.

[0065] The working principle is as follows: This method differs from conventional approaches that directly divide human body data from a single state into zones. Measuring pressure requires carrying a backpack, measuring sweating requires movement, and measuring body temperature requires sitting quietly—these three states cannot be combined, so the three types of data must be measured separately. If the three distribution maps obtained from separate measurements are directly stacked together and lines are drawn, it's as if they were data from the same state. The drawn boundaries deviate from the actual body conditions from the outset. Furthermore, dividing the data by a single, rigid value easily leads to the cotton seam being sewn precisely into the area where the value fluctuates and where the body is most sensitive. Therefore, step S1 avoids forcibly combining them into a single state. Instead, it uses both standing and walking backpack states to measure the shift in shoulder strap stress points as movement progresses. Then, based on the time proportion of each state during actual wear, the data are combined into a single distribution map. The deviations from separate measurements are canceled out during the synthesis process. After synthesis, the area where the value is close to the boundary line is specially marked as the boundary uncertainty zone, and it is stipulated that seams should not enter the uncertainty zone or press against the stress line. This ensures that the material interface avoids the most sensitive and stress-prone areas of the body.

[0066] Once the zoning is finalized, the second hurdle is overcome. Step S2 involves adding the saved down to the front and back of the garment. This changes the thickness of the fabric in different areas, altering the temperature distribution on the wearer. The initial data used for zoning no longer applies, effectively invalidating the zoning criteria. Ignoring this would lead to endless retesting and rezoning. Therefore, in step S2, each time a filling plan is finalized, a sample garment is tested, or thermal resistance is used for calculation and verification. If the temperature distribution doesn't match, the boundaries or weight are adjusted. Adjustments within specified limits are considered finalized. Furthermore, a maximum number of rounds of verification are allowed before finalization. Zoning and weight can be determined within a limited number of rounds.

[0067] After the plan was finalized, there was a third hurdle in the workshop. As the pleating templates wore out, the fabric's moisture level changed, causing the down filling chambers to gradually shrink. This change was imperceptible on a single garment, but the down filling machine only considered weight, not the size of the down filling chamber. Even with a smaller chamber, it still filled the same amount of down, resulting in the down being compressed. The three-dimensional down filling chamber, designed to support a fluffy look, became a place for compacting the down. In the drying workshop, the down still carried static electricity, causing the down clusters to be sucked deep into the pleats and clump together, leaving insufficient filling in other areas, forming thin, strip-like bands that were undetectable by weighing or appearance. Therefore, step S3 recorded the number of times each template was used, and the actual size of the down filling chambers was checked by frequency and batch. Step S4 adjusted the filling amount accordingly based on the detected size, ensuring the down compactness in the chamber remained at the predetermined level. Simultaneously, ionized air was used to eliminate static electricity at the filling station, and humidification was only applied to this station, leaving the sewing station untouched, preventing the moisture-wicking cotton from absorbing moisture and becoming damaged during sewing.

[0068] These problems share a common characteristic: they all appear to pass the tests in terms of down filling records, weighing, appearance, and routine loft measurements. Factories easily mistake this for poor down quality or insufficient filling, increasing the filling amount to fix it, only to find the problem worsens with each attempt. Therefore, in addition to routine testing, step S6 involves periodically cutting open the down compartment to check the evenness of the down filling in the folds. Then, the garment is wetted, subjected to simulated shoulder strap pressure, and placed in a low-temperature environment for infrared thermal imaging, specifically looking for cold spots on seams that are not visible on a dry, new garment. After identifying the problem, the root cause is traced according to its symptoms: for garments with sufficient weight and a full appearance but lacking warmth, the template and down compartment size are checked; for uneven down filling in the folds, anti-static measures are adjusted; for cold spots concentrated at the boundaries of different zones, the zone data is verified; only for garments lacking overall warmth is the weight adjusted. Only when the correct direction is taken can the problem be truly eliminated.

[0069] From the synthesis and zoning in step S1, to the verification and finalization in step S2, to the filling and static elimination in steps S3 and S4, and finally to the inspection and root cause finding in step S6, there is a handover and quality control every step from measuring human body data to the garment leaving the factory. Only then can the design on the drawing, which is not collapsed under pressure, not stuffy when sweating, fluffy and warm torso, and weight distributed as needed, be implemented in every garment.

[0070] It's also important to note that each of these steps is interconnected. Several pairs of features in this design can create new problems when combined, requiring additional steps to address them. The 3D pleated down filling chamber maximizes volume through pleats, allowing for more down to be packed. Weight redistribution then allocates any surplus down to the front and back. These two factors combined make this area the most fully filled with down, closest to the maximum filling limit. Even slightly undersized down filling chambers will exceed the compaction limit. Using 3D down filling chambers or redistribution alone wouldn't be so sensitive; it's the combination of both that amplifies errors in down filling chamber size to a critical point. Therefore, down filling must follow the measured down filling chamber size, controlling the tightness rather than the weight. The drift in down filling chamber size is absorbed by adjusting the amount of down filling, allowing both overfilling and the prevention of compaction to occur simultaneously.

[0071] The same relationship exists between the two steps of zoning and filling. Step S1, zoning, relies on the temperature data measured when wearing the base model. Step S2 then adjusts the thickness of each area according to the zoning results. If the two steps are done consecutively, the temperature distribution of the finished garment will inevitably deviate from the data measured. The result of the latter step overturns the basis of the former step. Each step may seem correct on its own, but problems arise when they are combined. Therefore, it is necessary to check and limit the number of rounds to bring them to a state where they match each other. In the mass production stage, an additional safety measure is taken. If the cold spots are concentrated at the boundary of the zoning area, we can go back to step S1 to re-zoning. Even if there are still residual deviations after the final design is completed, we can go back to the correct stage to make corrections.

[0072] The same applies to eliminating static electricity and the cotton lining. Suppressing static electricity requires humidification, but the four-layer structure in the back spine region 3 contains moisture-wicking cotton that is susceptible to moisture. While humidifying the entire workshop does make the down filling of the pleats more even, the moisture-wicking cotton absorbs moisture during sewing, significantly impairing its perspiration-wicking ability—a trade-off. This invention encloses the humidification area within the down filling station, keeping the sewing station station stationed. Ionizing air is installed in the down conveying pipes and filling ports, so that static electricity elimination only affects the path the down takes. Furthermore, the temperature, pressure, and time of the four-layer pressing are all limited to a range that does not damage the moisture-wicking fibers. After pressing, the moisture permeability is measured to verify that both aspects are protected.

[0073] Finally, there's the splicing structure and moisture-wicking function. The cotton and down are directly sewn together without overlapping, eliminating an extra layer. However, moisture constantly venting from the breathable area can seep into the adjacent down hopper edge through the needle holes in the seams, causing the down there to become damp and collapse. If the seam happens to be pressed against the shoulder strap stress line, the seam is pressed even tighter, allowing moisture to seep in even faster. After several washes, the needle holes enlarge, exacerbating moisture seepage and down leakage. This invention uses three measures to block this path: structurally, the edges of the cotton sheet and the down hopper are aligned and abutted together, sealing the interface gaps; markings specify that the seam avoids uncertain zones and stress lines, preventing the seam from being compressed; and inspection uses pressurized infrared thermography to detect any residual cold patches before shipment.

[0074] Experiment 1: To verify the effectiveness of this garment, six samples with identical pattern, outer and inner fabrics, and comparable static insulation temperature zones were used as parallel controls. Example 1 was a complete garment based on this design. Comparative Examples 1 to 5 represented four existing improvement routes: full down filling with cotton overlay, down ventilation channels, tight-seam down locking, and cotton overlay with flat quilting. The six samples underwent a shoulder cyclic pressure test, a temperature drop test during a simulated sweating and static low-temperature phase, a temperature difference test of multiple cold spots on the body after heavy-duty wearing, and a insulation reduction test after multiple machine washes. Finally, the total fill weight required for each sample to reach the same insulation temperature zone was measured, and the results were obtained. Figures 4 to 8 .

[0075] like Figure 4 As shown, after repeated pressure on the shoulders, the heat retention rate of this garment remained at its highest level and decreased the slowest. This indicates that after the pressure-bearing parts were replaced with cotton, the heat retention capacity remained basically unchanged even after the backpack was pressed down. The warmth retention of the shoulders no longer relied on the down feathers staying in place, but was ensured by the cotton's ability to spring back after being compressed.

[0076] like Figure 5 As shown, during the half-hour period of stillness in a low-temperature environment after sweating, the back of this garment experienced the least temperature drop, indicating that the moisture-wicking cotton does not collapse after wicking away sweat and retains warmth even when still. It is worth noting that the down-filled ventilation channel design performed almost as well as a full down-filled garment in this test, indicating that the shortcoming of down, which collapses when damp, is unavoidable in sweaty conditions. The old notion that the back must be made of down does not hold true in wet conditions. This garment, on the contrary, uses cotton in the sweat-absorbing areas, precisely avoiding this shortcoming.

[0077] like Figure 6 As shown, the temperature difference at the cold spots in all parts of this garment is at the lowest level and is also close to each other, indicating that the overall warmth is evenly distributed after the weight is allocated as needed, with no obvious weak points. What is even more telling is the group at the splicing interface. The cotton-covered scheme has the largest temperature difference at the boundary of the cotton area, while this garment has the smallest. This shows that the seemingly insignificant practices of sewing instead of stacking, not overlapping in the thickness direction, and the cotton edge and the fleece edge fitting together are precisely the reasons why cold bridges are not formed at the interface.

[0078] like Figure 7 As shown, the garment's warmth retention decreases minimally after twenty washes. This is partly because the parts most susceptible to washing have been replaced with cotton that retains its shape after washing, and partly because the three-dimensional pleated down compartments effectively contain the down, preventing clumping and sagging after washing. The flat curve is also due to the manufacturing process, where the weight reduction after machine washing was factored in. In other words, durability is calculated beforehand, not just a coincidence of the materials used.

[0079] like Figure 8As shown, to achieve the same level of warmth, this garment uses the least amount of filling. All the advantages shown in the previous four images are achieved with the lowest possible total amount of filling. This demonstrates that this garment relies on placing the material in the right places, rather than using excessive amounts. The cotton-covered option has the highest total amount of filling, which precisely measures out the material wasted in overlapping areas by the layering method. The weight saved in this garment directly translates into lightweight and freedom of movement.

[0080] Experiment 2: To verify the effectiveness of this preparation method, eight implementation scenarios were set up, all of which were used to prepare the same garment from Example 1 in the previous experiment. Example 1 was the complete method, that is, the polymorphic data was weighted and fused according to the scene proportion and the boundary uncertainty zone was marked, the seam avoided sensitive zones and stress paths, the filling scheme was reviewed and iterated until convergence, the down hopper volume was marked according to the template usage and linked with the down filling weight, the down filling station was equipped with ion wind and only local humidity adjustment was performed, and the finished product was inspected by dissection and sampling and traced back to the source for repair according to the defect characteristics.

[0081] Comparative Example 1: Abnormal data are directly superimposed and zoned without weighting; Comparative Example 2: Zones are defined once without verification; Comparative Example 3: Down filling is done with a fixed weight and the volume is not calibrated; Comparative Example 4: No static electricity elimination measures are set; Comparative Example 5: Humidification of the entire workshop is used instead of local humidity control; Comparative Example 6: Hot pressing is done without parameter window limits; Comparative Example 7: After defects are detected, the down filling weight is increased and the garment is reworked according to conventional practices; Comparative Example 8: This thermal garment is prepared using conventional methods.

[0082] The test items include the convergence process of the partition review, the drift of the down filling density with the template used, the variation of the uniformity of the down filling in the pleats with different batches, the maintenance of the performance of the breathable parts, and the trend of the batch defect rate after multiple rounds of rework, which correspond to the following: Figures 9 to 13 Furthermore, a comprehensive comparison of multiple indicators was made between the garment manufacturing processes of Example 1 and Comparative Example 8, resulting in... Figure 14 .

[0083] like Figure 9 As shown, the boundary displacement of this method decreases with each round, stabilizing after several rounds. This indicates that the first version of the boundary given by the synthetic zoning is not far from the actual position, and subsequent checks are only minor adjustments. The zoning process has changed from drawing lines based on experience to a check process with a endpoint. The curve of the scaled graph swings back and forth without closing, which corresponds to the problem mentioned earlier where the zoning basis is overturned by the results. The other straight line, which is not checked, carries the initial deviation into mass production as is.

[0084] like Figure 10As shown in the comparison example with a fixed weight of down filling, the deviation of the down hopper tightness increases with the number of times the template is used. However, its down filling record is qualified from beginning to end, indicating that qualified weighing and qualified down hopper condition are two different things. Conventional inspection cannot detect this kind of problem. The tightness of this method always fluctuates slightly close to the predetermined value, proving that checking the actual size and adjusting the down filling amount accordingly makes the invisible drift visible.

[0085] like Figure 11 As shown in the comparative example without anti-static measures, the uniformity of the pleated filling declined batch by batch as the workshop became drier, and no conventional indicators triggered any alarms. This trend would have continued until a batch of complaints surfaced if no spot checks had been conducted. The curve of this method remained stable throughout, indicating that ionizing air combined with humidification only at the filling station was sufficient to prevent electrostatic agglomeration at its source. The comparative curve for humidifying the entire workshop also remained stable, but its cost is shown in the next figure.

[0086] like Figure 12 As shown, both methods of humidifying the entire workshop and unrestricted heat pressing significantly impair the wicking performance of breathable areas, yet the garments appear unaffected, representing damage that is impossible to detect or repair afterward. This method, however, only humidifies the down filling station and limits heat pressing within a protected range, preserving almost the original wicking performance. Figure 11 Taken together, static elimination and protective wet cotton cannot be addressed at both the workshop level; only at the workstation level can both be addressed.

[0087] like Figure 13 As shown, starting with the same batch of defects, the routine rework of adding fleece to all defective items causes the defect rate to increase round after round, while rework based on the root cause reduces the defect rate to near zero after a few rounds. The directions are completely opposite; the only difference lies in where to fix the problem after it is found. This shows that the cycle of making things worse with each repair is real, and one cannot escape it by relying solely on experience. The two steps of spot checking and rework based on the root cause are indispensable in this method.

[0088] like Figure 14 As shown, comparing the conventional preparation method with this method as a whole reveals a comprehensive difference across all stages. Garments produced using the conventional method show a significantly lower degree of overlap between the zoning boundaries and the actual body conditions. This corresponds to the problem of relying on experience-based lines to cover the actual pressure and perspiration areas. The pass rates for both the tightness of the down filling and the uniformity of the pleats are simultaneously low, corresponding to the problems of ignoring down filling size and neglecting to address static electricity. The difference in moisture retention corresponds to the damage to the wicking cotton caused by conventional heat pressing. These combined problems result in a significantly lower first-inspection pass rate for garments produced using the conventional method. The last group best illustrates this point: after two rounds of rework based on experience, the pass rate of the conventional method decreased instead of increasing, while the pass rate of the method continued to rise after rework addressing the root causes. This contrasting trend highlights the importance of consistent improvement. Figures 9 to 13 The various steps that were previously verified separately were combined into one task.

[0089] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A cotton-filled thermal garment based on ergonomic partitioning, characterized in that, It includes an outer fabric layer, an inner fabric layer, and multiple filling cavities formed by the outer fabric layer and the inner fabric layer. The garment is divided into a pressure-bearing and anti-collapse zone, a moisture-wicking zone, a core warmth-insulating zone, and a windproof and heat-locking zone. The pressure-bearing and anti-collapse zone includes the shoulder area (1) and the elbow area (6), and the moisture-wicking zone includes the armpit area (2) and the posterior mid-spine area (3). The filling cavities of the pressure-bearing and anti-collapse zone and the moisture-wicking zone are filled with sheet-like synthetic fiber thermal insulation cotton. The core insulation area includes a chest area (4) and a back area (5). The filling cavity of the core insulation area is a three-dimensional pleated down chamber, which is filled with down. The windproof and heat-locking zone is a ring-shaped filling cavity that extends from the back waist to the hem and surrounds the garment. The ring-shaped filling cavity is filled with down, and its down filling per unit area is higher than that of the core heat-insulating zone. The area filled with the synthetic fiber insulation cotton and the area filled with the down are joined together by a seam, and the synthetic fiber insulation cotton and the down do not overlap each other in the thickness direction of the garment.

2. The cotton-filled thermal garment based on ergonomic partitioning according to claim 1, characterized in that, The down is goose down with a fill power of not less than 800, and the synthetic fiber insulation has a weight of 200-300 g / m². 2 The synthetic fiber thermal insulation cotton filling the armpit area (2) and the posterior mid-spine area (3) is a polymer fiber cotton with unidirectional moisture-wicking properties, and its moisture-wicking direction is from the lining layer to the fabric layer.

3. A cotton-filled thermal garment based on ergonomic partitioning as described in claim 1 or 2, characterized in that, The synthetic fiber insulation cotton in the elbow area (6) is a whole piece of cotton to cover the outer periphery of the elbow joint except for the elbow fossa. The armpit area (2) is a one-piece three-dimensional cut piece. The posterior mid-spine area (3) is a longitudinal recessed channel extending from the back of the neck to the upper back waist. The longitudinal recessed channel is made of four layers of the same shape cut pieces pressed and sewn together from the inside to the outside: breathable mesh, lining layer, synthetic fiber insulation cotton and outer fabric layer.

4. A method for preparing cotton-filled thermal clothing based on ergonomic zoning, characterized in that, The method for preparing the cotton-filled thermal garment based on ergonomic partitioning as described in claim 3 includes the following steps: Under various different human working conditions, pressure distribution data, sweating distribution data, and heat demand distribution data of the human body surface were collected separately. The multi-condition collected distribution data were weighted and fused according to working conditions. Based on the fused distribution data, the clothing was divided into pressure-bearing and anti-collapse zone, moisture-wicking zone, core warmth zone, and windproof and heat-locking zone. The boundary uncertainty zone between each zone was marked, and the position of the cotton velvet splicing seam was determined according to the line constraint rules for avoiding the boundary uncertainty zone. Based on the functional requirements of each zone, determine the type of filling material and its unit area weight for each zone. Verify the surface temperature distribution of the thermal resistance distribution formed by the determined filling scheme. If the verification result does not meet the convergence criterion, correct the zone boundary and / or unit area weight and re-verify until the convergence criterion is met. Cut pieces for each zone are prepared separately according to the zone. Among them, the core insulation zone is prepared into a three-dimensional pleated fleece pleat cut piece by template pleating, and the actual volume of the formed three-dimensional pleated fleece pleat is calibrated. Under static electricity elimination conditions, after the actual volume is corrected for the determined unit area down filling amount by volume and weight linkage, down is filled into the filling cavity of the core warming area and the windproof and heat-locking area. Synthetic fiber warming cotton is filled and fixed into the cut pieces of the pressure-bearing and anti-collapse area and the moisture-wicking area. The cotton filling part and the down filling part are spliced ​​together as one piece through the splicing seam. Assemble the body, sleeves, and collar into a garment; The garment undergoes multiple performance tests, including random sampling of down filling uniformity. If a test fails, the defect is identified according to the defect tracing rules, and the process is returned to that step for adjustment.

5. The method for preparing cotton-filled thermal clothing based on ergonomic zoning according to claim 4, characterized in that, The process involves collecting pressure distribution data, sweating distribution data, and heat demand distribution data of the human body surface under various different human working conditions. The collected distribution data is then weighted and fused according to the working conditions. Based on the fused distribution data, the clothing is divided into a pressure-bearing and collapse-resistant zone, a moisture-wicking zone, a core warmth-retaining zone, and a windproof and heat-locking zone. The boundary uncertainty zones between each zone are marked, and the positions of the cotton velvet seams are determined according to the rules for avoiding these boundary uncertainty zones. Specifically, the process includes the following steps: Pressure distribution data on the human body surface were collected under static and dynamic loading conditions, respectively. The dynamic loading condition included the pressure state of the load-bearing equipment as it swayed with the gait. Data on the distribution of sweating rate on the human body surface were collected under heat-generating conditions with set exercise intensity. Data on body surface temperature distribution when a person is wearing a standard garment are collected under resting steady-state conditions to characterize the distribution of heat demand. The distributed data collected in multiple states are weighted and fused according to the proportion of each working condition in the target usage scenario to obtain the fused pressure distribution, fused sweating distribution and fused heat demand distribution. Based on the set threshold, the fusion distribution is divided into pressure-bearing and collapse-resistant zones, moisture-wicking zones, core insulation zones, and windproof and heat-locking zones. The areas where the fusion distribution values ​​are within the set fluctuation range of the set threshold are marked as boundary uncertainty zones. The location of the cotton lint splice seam is determined according to the line constraint rules. The line constraint rules stipulate that the splice seam does not fall within the boundary uncertainty zone and does not overlap with the pressure path in the fusion pressure distribution.

6. The method for preparing cotton-filled thermal clothing based on ergonomic partitioning according to claim 4, characterized in that, The process involves determining the type of filling material and its unit area weight for each partition based on its functional requirements, verifying the surface temperature distribution of the thermal resistance distribution formed by the determined filling scheme, and correcting the partition boundaries and / or unit area weight if the verification result does not meet the convergence criterion, and then re-verifying until the convergence criterion is met. Specifically, this includes the following steps: For the pressure-bearing and collapse-resistant zones and the moisture-wicking zones, use sheet-like synthetic fiber insulation that can rebound and return to its original shape after being compressed; for the core insulation zone and the windproof and heat-locking zone, use down. Using the same style of fully down-filled garment as a benchmark, the static heat retention value of the benchmark garment in each zone was measured; Based on the principle of equivalent static insulation temperature zone, the original down filler weight per unit area in the pressure-bearing and collapse-resistant zone and the moisture-wicking zone is converted into the weight per unit area of ​​synthetic fiber insulation cotton. The total weight of down saved by conversion in the pressure-bearing and collapse-resistant zone and the moisture-wicking zone is redistributed to the core insulation zone and the windproof and heat-locking zone according to the heat demand weight of each zone, resulting in the redistributed filling scheme. Obtain the surface temperature distribution formed by the redistributed filling scheme, compare it with the obtained fusion heat demand distribution, and correct the partition boundary and / or the unit area weight of each partition when the deviation exceeds the set criterion. Repeat this step until the partition boundary displacement and weight correction between two adjacent reviews are both less than the set convergence value, and the cumulative number of reviews does not exceed the set upper limit.

7. The method for preparing cotton-filled thermal clothing based on ergonomic partitioning according to claim 4, characterized in that, The process involves preparing cut pieces for each zone according to the designated areas. Specifically, the core insulation zone is prepared using a template-based pleating method to create a three-dimensional pleated fleece pleat cut piece. The actual volume of the formed three-dimensional pleated fleece pleat is then calibrated. This process includes the following steps: Each piece of fabric from the core insulation zone is placed on a pleating template to create three-dimensional pleats, and the cumulative number of times each pleating template is used is recorded. The underarm area (2) is prepared using a one-piece three-dimensional cutting method; Cut the breathable mesh fabric piece, lining piece, synthetic fiber thermal insulation cotton piece and fabric piece of the middle spine area (3) according to the same shape, and make a total of four layers of identical cut pieces. Prepare a whole-piece elbow pad that covers the peripheral area of ​​the elbow joint, excluding the cubital fossa. Based on the cumulative number of uses of the pleating template and / or production batches, the actual volume of the formed three-dimensional pleated quilt is sampled and calibrated to obtain the volume deviation of the actual volume relative to the design volume.

8. The method for preparing cotton-filled thermal clothing based on ergonomic partitioning according to claim 4, characterized in that, Under static electricity elimination conditions, after correcting the actual volume of the calibrated unit area down filling amount by volume and weight linkage, down is filled into the filling cavities of the core insulation zone and the windproof and heat-locking zone. Synthetic fiber insulation cotton is filled and fixed into the cut pieces of the pressure-bearing and anti-collapse zone and the moisture-wicking zone. The cotton filling part and the down filling part are then spliced ​​together as one piece through the seam. The specific steps include the following: Position and sew the synthetic fiber thermal insulation cotton sheets of each section to the corresponding fabric and lining pieces; Within the set hot pressing temperature and pressure window, the four layers of the same shape of the back middle spine area (3) are precisely aligned and then pressed and sewn together. The hot pressing temperature and pressure window are limited to the one-way moisture-wicking performance of the synthetic fiber thermal insulation cotton. First, complete the partial sewing of the whole elbow cotton piece in the elbow area (6) of the sleeve, and then splice the sleeve with the body; The determined fill amount per unit area is corrected according to the calibrated volume deviation to obtain the corrected fill amount. Down is then filled into the annular filling cavity of the three-dimensional pleated down compartment and the windproof and heat-locking zone according to the corrected fill amount and then sealed. An electrostatic elimination device is installed at the down filling station, and the local ambient humidity at the down filling station is controlled to suppress the electrostatic aggregation of down clusters within the three-dimensional pleats.

9. The method for preparing cotton-filled thermal clothing based on ergonomic partitioning according to claim 4, characterized in that, The process of assembling the body and sleeves into a garment specifically includes the following steps: Sew the body and sleeves together; Install a zipper on the placket and a hem closure structure to close the annular filling cavity of the windproof and heat-locking zone into a ring along the hem.

10. The method for preparing cotton-filled thermal clothing based on ergonomic zoning according to claim 4, characterized in that, The process of performing multiple performance tests on the garment, including random sampling inspection of down filling uniformity, and determining the cause of the defect according to the defect tracing rules when the test fails, and then returning to the determined step for adjustment, specifically includes the following steps: Temperature drop curves of different zones in the garment were measured under a set low-temperature environment; The moisture permeability of the axillary region (2) and the posterior mid-spine region (3) was measured; The rate of decrease in loft and warmth retention of garments in each filling area was measured after a set number of machine washes. Apply a set number of cyclic pressures to the shoulder region (1) and the elbow region (6), and measure the thickness recovery rate of the filler layer after decompression; Select garments from each batch, cut open the three-dimensional pleated down compartments, and test the filling uniformity at the pleats and scale protrusions. If any test fails to meet the set pass criteria, the cause of the defect is determined according to the defect tracing rules, and the process is returned to the determined step. Specifically, if the fill weight is qualified and the appearance is full, but the core insulation area is insufficient, it is determined to be a volume and weight mismatch, and the process is returned to recalibrate the volume; if the uniformity of the pleated fill is unqualified, it is determined to be static electricity concentration and underfilling, and the process is returned to adjust the static electricity elimination conditions; if the insulation is insufficient or cold spots are concentrated at the boundary of the zone, it is determined to be zone misalignment, and the process is returned to re-merge the zones; if the overall insulation or moisture permeability is unqualified, the process is returned to adjust the filling scheme.

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