Method and process for surface sewing of cotton garments

Abstract

The present application relates to the technical field of clothing process, and more particularly to a cotton clothing surface sewing method and process, which comprises a fan-shaped fish scale pattern sewing line, the fan-shaped fish scale pattern shape comprises a sewing line, and the sewing line is located on the surface of a fabric body to form a diagonal texture part; the diagonal texture part completely covers the outer side wall of the fabric body, so as to realize the balance between the warmth and lightness of the cotton clothing, and make the wearer feel comfortable without being heavy and inconvenient. The sewing line is made of mixed thick and thin sewing silk threads, including surface layer thin profile silk threads and inner layer reinforced thick silk threads. The diagonal texture part comprises a fish scale pattern sewing thread layer and a fan-shaped pattern unit, and the fan-shaped pattern unit is sequentially provided with a plurality of units. Through the cooperative arrangement of the fan-shaped fish scale pattern and the like, compared with the cotton clothing in the prior art, the present application can effectively retain the cotton clothing internal fluffy air layer, completely solve the pain points of the traditional cotton clothing, such as warmth and bloated, lightness and non-warmth, and realize the bidirectional balance between the warmth and lightness.

Description

Technical Field

[0001] This invention relates to the field of garment technology, and in particular to a method and process for sewing the surface of cotton-padded clothing. Background Technology

[0002] In the modern clothing manufacturing industry, cotton-padded clothing, as the mainstream warm clothing for autumn and winter, is widely used in various scenarios such as daily wear and outdoor travel due to its excellent cold-proof performance. Currently, most traditional cotton-padded clothing on the market uses conventional straight-line and square stitching techniques to fix the internal cotton filling material, and its core function is only to prevent the cotton layers from shifting or clumping.

[0003] However, traditional sewing techniques have many drawbacks in practical applications. Conventional sewing patterns are simple, the fabric surface is flat and lacks texture, and the stitching is dense and highly compacted, which greatly compresses the internal space of the cotton-padded garment, resulting in insufficient air storage in the insulation layer and a significant reduction in its cold-proof effect. At the same time, in order to improve the warmth, the industry usually uses thicker filling cotton to compensate for the defects in the process. This makes the cotton-padded garment bulky and heavy, with poor breathability, and a strong sense of restriction when worn, making it difficult to balance warmth and lightness and comfort.

[0004] Regarding the aforementioned technologies, traditional cotton-padded clothing sewing techniques struggle to balance warmth, lightness, and garment design, resulting in insufficient warmth, bulky appearance, cumbersome wear, and monotonous designs. These issues fail to meet consumers' demands for lightweight, stylish, and comfortable warm cotton-padded clothing. Summary of the Invention

[0005] The purpose of this invention is to solve the problem that the existing sewing process is difficult to balance warmth, lightness and texture, resulting in insufficient warmth, bulky body, heavy wearing, and monotonous pattern, which cannot meet consumers' demand for lightweight, high-value, and highly comfortable warm cotton-padded clothing. Therefore, this invention proposes a sewing method and process for the surface of cotton-padded clothing.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A method and process for sewing the surface of a cotton-padded garment, including a fan-shaped fish scale pattern, wherein the fan-shaped fish scale pattern includes a sewing line, and the sewing line forms a twill texture on the surface of the fabric body. The twill texture completely covers the outer wall of the fabric body, which is used to achieve a balance between warmth and lightness in cotton clothing, so that the wearer can stay comfortable without feeling heavy or inconvenient.

[0007] Preferably, the stitching is made of a mixture of fine and coarse sewing threads, including a fine outer thread and a reinforcing coarse inner thread.

[0008] Preferably, the twill texture portion includes a fish scale pattern stitch layer and a fan-shaped pattern unit. Several fan-shaped pattern units are arranged sequentially, and the fan-shaped pattern units are staggered and overlapped with each other. A recessed breathable portion is formed between two adjacent fan-shaped pattern units.

[0009] Preferably, the fan-shaped pattern unit includes a raised sewn portion, and the sidewall of the raised sewn portion away from the fish scale pattern stitch layer is provided with a height gap with the sidewall of the recessed breathable portion away from the fish scale pattern stitch layer.

[0010] Preferably, the fan-shaped texture unit is an arc-shaped fan structure, and several fan-shaped texture units are evenly staggered among each other.

[0011] Preferably, the fan-shaped pattern unit is arranged at an angle.

[0012] Preferably, the individual fan-shaped texture units have the same curvature, and the overlapping width of adjacent fan-shaped texture units is 2-4 mm.

[0013] A cotton-padded garment manufacturing process, which is produced by the surface sewing method of a cotton-padded garment as described in any one of claims 1-7.

[0014] Preferably, the fan-shaped fish scale pattern and the twill texture fully cover the surface of the cotton garment, making the garment smooth, crisp, and free of bulky or bunched-up structures.

[0015] Preferably, the surface of the cotton-padded garment retains an internal fluffy air layer through a fish-scale pattern stitching method, which serves both to lock in warmth and to achieve a lightweight wearing effect.

[0016] Compared with the prior art, the beneficial effects of this invention are as follows: 1. Balancing warmth and lightness. The fan-shaped fish scale twill stitching texture adopted in this application can effectively retain the fluffy heat-insulating air layer inside the cotton-padded garment, greatly improving the heat-locking and warmth-preserving effect. It can achieve excellent cold-proof performance without the need for thicker filling cotton, fundamentally reducing the overall weight of the cotton-padded garment and completely solving the pain points of traditional cotton-padded garments that are warm but bulky and lightweight but not warm, achieving a balance between warmth and lightness.

[0017] 2. Enhance wearing comfort. The micro-breathable gaps between the fish-scale pattern units create an air micro-circulation structure, effectively improving the problem of stuffiness and sweating in thick cotton-padded coats and enhancing the breathability of the garment; the staggered flexible stitching structure has no hard, compressed areas, and the fabric is soft and close-fitting overall, without any sense of restriction or pressure, making it easy and comfortable to wear for a long time.

[0018] 3. Optimized appearance, design, and texture. The full-coverage three-dimensional fish-scale twill texture breaks away from the monotonous and flat appearance of traditional cotton-padded jackets. The fabric surface is three-dimensional and full, with exquisite and regular patterns, resulting in a stronger sense of visual layering and significantly enhancing the fashion and sophistication of the cotton-padded jacket. It is suitable for various wearing scenarios and has a wider market adaptability.

[0019] 4. Sturdy and durable craftsmanship. The staggered and overlapping stitching structure, combined with reinforced threads of mixed coarse and fine thickness, effectively improves the strength of the stitching, firmly securing the internal filling cotton material and preventing issues such as cotton clumping, shifting, and bunching after wearing and washing. At the same time, the fabric is wrinkle-resistant, abrasion-resistant, and not easily deformed, effectively extending the service life of the cotton-padded garment and reducing the cost of wearing and caring for it.

[0020] 5. Enhance product market competitiveness. The cotton-padded clothing made with this sewing process combines multiple advantages such as warmth, lightness, breathability, aesthetics, and durability, perfectly meeting the current consumer demand for lightweight, high-quality, and stylish autumn and winter clothing. It differs significantly from traditional cotton-padded clothing, effectively enhancing the product's core market competitiveness and added value. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the fan-shaped fish scale pattern twill texture on the surface of the cotton-padded garment in an embodiment of the present invention; Figure 2 This is a partial structural diagram of the fan-shaped fish scale pattern twill texture on the surface of the cotton-padded garment in an embodiment of the present invention; Figure 3 This is a schematic diagram of the back of the cotton-padded garment in an embodiment of the present invention; Figure 4 This is a front view of the cotton-padded garment in an embodiment of the present invention. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0023] Reference Figures 1-4A method for sewing the surface of a cotton-padded garment includes a fan-shaped fish-scale pattern. The fan-shaped fish-scale pattern includes sewing lines, which form a twill texture on the surface of the fabric. The twill texture completely covers the outer wall of the fabric, achieving a balance between warmth and lightness, ensuring the wearer's comfort without feeling heavy or inconvenient. The sewing lines are stitched along the surface of the fabric in a continuous, staggered fan-shaped path, securing the fabric to the inner filling. The twill texture is composed of multiple sets of seamlessly joined fan-shaped fish-scale patterns, forming a continuous three-dimensional texture covering the outer wall of the fabric. During sewing, the feed dog and presser foot below the needle plate work together to push the fabric along a predetermined arc trajectory. The sewing needle pierces back and forth along a staggered path preset by a programmable unit. After completing each fan-shaped unit, the feed mechanism shifts the fabric laterally by one fan-arc interval before entering the next fan-shaped unit sewing cycle, thus gradually accumulating a continuous twill texture on the entire fabric. The sewing pressure is distributed to each fan-shaped unit area, and the fabric itself is not compressed as a whole, so the fluffy air layer inside is completely preserved.

[0024] The stitching is made of a mixture of fine and thick sewing threads, consisting of a fine outer thread and a thicker inner reinforcing thread. The fine outer thread is placed on the exposed surface of the stitch, following the edge of the fan-shaped pattern unit to form a visible fish-scale fan-shaped outline. The thicker inner reinforcing thread adheres to the base surface of the fabric and interweaves with the filling cotton for secure binding. The sewing needle simultaneously carries both threads through the fabric. The bobbin hooks onto the thicker inner thread on the underside of the fabric to form a bottom loop, while the top thread naturally lies on the upper side of the fabric to form the fine outer thread stitch. The fine outer thread and the thicker inner thread are introduced simultaneously by the same sewing needle during the sewing process, forming an integrated knot with a fine outer layer and a thicker inner layer. This maintains the soft feel of the fabric surface and increases the tensile strength of the seam.

[0025] Reference Figures 1-2 The twill texture section includes a fish-scale stitch layer and fan-shaped pattern units. Several fan-shaped pattern units are arranged sequentially, overlapping and staggered. A recessed breathable area is formed between adjacent fan-shaped pattern units. The fish-scale stitch layer is a collection of stitches formed by sewing threads onto the fabric surface. The fan-shaped pattern units are defined by arc-shaped stitches, and each fan-shaped pattern unit's outer contour is formed by a closed arc line connecting end to end. The arc lines partially overlap with the arc lines of adjacent units. The staggered overlapping arrangement allows the boundary areas of adjacent fan-shaped pattern units to overlap and intersect. The recessed breathable area is located in the unstitched micro-area at the overlapping boundary. This micro-area has no stitches penetrating the fabric body, allowing warm air inside the garment to slowly escape through the low-resistance channels formed by the recessed breathable area. This releases excess heat and moisture without creating a rapid airflow, thus achieving a balanced micro-air circulation.

[0026] The fan-shaped pattern unit includes a raised seam section. The sidewall of the raised seam section, furthest from the fish-scale stitch layer, and the sidewall of the recessed breathable section, furthest from the fish-scale stitch layer, are spaced at a height difference. The raised seam section is formed by the accumulation of stitches from the inner reinforcing coarse yarn and the arching of the fabric itself under stress. The fish-scale stitch layer provides bottom support for the raised seam section. When the inner reinforcing coarse yarn is tightened, its thick diameter threads exert an upward pushing force on the fabric, causing the fabric within the fan-shaped pattern unit to locally rise, forming a visible raised arc surface. At the junction of adjacent overlaps, the stitching branches off and is not occupied by the threads, allowing the fabric to naturally fall back, forming a lower area relative to the raised arc surface. The height difference makes the surface of the raised seam section higher than the surface of the recessed breathable section, creating a tactilely perceptible texture. The recessed breathable section, being relatively low, forms a low-resistance channel for air circulation.

[0027] The fan-shaped pattern unit is an arc-shaped structure, with several fan-shaped pattern units evenly staggered. The arc-shaped fan structure is defined by the fine outline threads on the surface, which are stitched along an arc. After the sewing needle enters at the starting point, it follows an arc trajectory with a set radius of curvature. When it reaches the ending point, the feed dog and presser foot rotate to turn the fabric body, and then it finishes along the next straight line to close the fan-shaped boundary. The evenly staggered arrangement ensures that each fan-shaped pattern unit maintains a regular offset in both the row and column directions. In the row direction, the lateral displacement of adjacent units is constant, and in the column direction, the longitudinal spacing of each row of units is equal. The fabric body surface is evenly stressed, and the internal filling cotton is evenly divided within each fan-shaped micro-area, without any concentrated compression or clumping areas.

[0028] Reference Figures 1-2 The fan-shaped texture units are arranged at an angle. The direction of the angle is uniformly oriented along the warp or weft of the fabric, and the axes of symmetry of multiple fan-shaped texture units remain parallel, meaning that the apex of all fan-shaped units points in the same direction. The sewing equipment feeds the fabric into the sewing area at a fixed deflection angle in the fabric laying section, ensuring that each set of fan-shaped texture units maintains the same angle of inclination. The twill texture section presents a continuous unidirectional twill pattern on the fabric surface, with each fan-shaped texture unit having the same angle of inclination. Under light, the raised arc surfaces of the twill texture section form a uniformly oriented high-reflection band, while the recessed breathable sections are in shadow. The visual texture is regular and symmetrical, presenting a three-dimensional appearance similar to fish scales.

[0029] Each individual fan-shaped pattern unit has the same curvature, and the overlap width between adjacent fan-shaped pattern units is 2-4mm. The uniform fan-shaped curvature is achieved through a programmable sewing thread control system. The control unit writes the curvature parameters into the thread control instruction set, and the sewing needle calls the same instruction set each time a fan-shaped unit is sewn, thus ensuring consistent curvature for each unit. At the overlap area, the fine outline threads on the surface layer partially overlap with the edge stitches of adjacent fan-shaped pattern units; that is, the outer edge curvature of the previous unit is partially covered by the inner edge curvature of the subsequent unit, and the overlap width is the overlap amount between adjacent units. This overlap, combined with the recessed breathable section that reserves a small air gap, maintains structural continuity between adjacent fan-shaped pattern units without blocking air channels. This enhances the overall bonding strength of the surface stitches of the fabric body while maintaining the breathability of the overlap seam.

[0030] Reference Figures 3-4 The cut fabric and filling are layered and fed into a multi-needle sewing machine, where they are sewn at a constant speed and temperature according to a fan-shaped fish scale pattern. Multiple sewing heads work synchronously on the machine, each following the fan-shaped path instructions issued by the programmable control unit. The working areas of adjacent sewing heads are seamlessly connected, ensuring a continuous and seamless fan-shaped fish scale pattern and twill texture on the entire fabric surface. During sewing, heat setting of the thread makes the fish scale texture crisp. The heat generated by the friction between the sewing needle and the fabric during high-speed piercing, combined with the machine's temperature control module, provides micro-temperature setting for the thread. After cooling, the stitches retain their three-dimensional shape, thus obtaining the main body of the cotton-padded garment.

[0031] Reference Figures 1-4 The fan-shaped fish-scale pattern and twill texture fully cover the surface of the cotton-padded garment, resulting in a smooth, crisp, and non-bulky structure. Full-coverage stitching ensures that the outer fabric of the front, back, and sleeves is completely covered by the fan-shaped fish-scale pattern and twill texture. The stitching extends from the top of the shoulder seam to the bottom of the hem, and from the center front placket to the side seam. The fan-shaped pattern units at the edges of each piece align seamlessly with corresponding units on adjacent pieces at the seams, creating a unified surface texture. The internal filling cotton is bonded to the fabric through dense and evenly distributed stitches, ensuring consistent thickness throughout the garment and preventing any localized bulges or sagging.

[0032] Reference Figures 3-4The cotton-padded jacket features a fish-scale stitching technique that retains an internal, fluffy air layer. This air layer serves both to lock in warmth and maintain a lightweight feel. The fan-shaped fish-scale texture created by the stitching divides the inner filling cotton into multiple independent inflatable micro-zones. The boundaries of each micro-zone are defined by closed or semi-closed stitches formed by the stitching. The filling cotton fibers within these micro-zones remain loose and relaxed, trapping a large amount of still air between the fibers. This air layer, stored between the filling cotton fibers and the inner surface of the fabric, prevents heat conduction due to the low thermal conductivity of the still air. As heat emitted from the body penetrates the jacket, it is gradually attenuated by the air layer. This improves warmth without increasing the amount of filling cotton, while maintaining a controlled overall weight. The wearer experiences no noticeable burden or pressure on the shoulders and back, resulting in a lightweight wearing experience.

[0033] The functional principle of this invention can be explained through the following operational methods: The stitching is done along a continuous, staggered fan-shaped path on the fabric surface, forming multiple fan-shaped fish-scale patterns, which are then joined together to form a twill texture that fully covers the outer wall. During the sewing process, each fan-shaped pattern unit bears the sewing pressure, preventing the fabric from becoming too compact and keeping the internal filling fluffy, forming an internal air layer. The low thermal conductivity of the still air in this air layer blocks heat transfer, improving warmth retention. At the same time, there is no need to increase the amount of filling, controlling the overall weight of the garment and achieving a lightweight wearing effect.

[0034] The stitching uses a fine outer thread and a thick inner reinforcing thread, which are sewn in simultaneously. The fine outer thread runs along the edge of the fan-shaped pattern unit to form a fish-scale fan-shaped outline, while the thick inner reinforcing thread adheres to the fabric base and is locked in place with the internal filling cotton.

[0035] The fan-shaped pattern units are arc-shaped, with multiple units evenly staggered and overlapping. Adjacent units form recessed breathable sections, ensuring structural continuity while allowing for slight ventilation gaps. The raised seams are formed by the accumulation of inner layer reinforced coarse thread stitches and the arching of the fabric itself, with the surface higher than the surface of the recessed breathable sections, creating a textured surface. The recessed breathable sections are low-resistance air channels, allowing warm air from inside the cotton garment to slowly escape, achieving micro-circulation and breathability. The overlapping fan-shaped pattern units lock in the fluffy air layer inside, reducing heat loss and keeping the garment smooth, crisp, and free of bulkiness.

[0036] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A method for sewing the surface of a cotton-padded garment, characterized in that, It includes a fan-shaped fish scale pattern in the stitching, wherein the fan-shaped fish scale pattern includes stitch lines, and the stitch lines are located on the surface of the fabric body to form a twill texture. The twill texture completely covers the outer wall of the fabric body, which is used to achieve a balance between warmth and lightness in cotton clothing, so that the wearer can stay comfortable without feeling heavy or inconvenient.

2. The method for sewing the surface of a cotton-padded garment according to claim 1, characterized in that, The stitching is made of a mixture of fine and coarse sewing threads, including a fine outer layer of thread and a thicker inner layer of reinforcing thread.

3. The method for sewing the surface of a cotton-padded garment according to claim 2, characterized in that, The twill texture includes a fish scale stitch layer and a fan-shaped texture unit. Several fan-shaped texture units are arranged sequentially and are staggered and overlapped between each other. A recessed breathable part is formed between two adjacent fan-shaped texture units.

4. The method for sewing the surface of a cotton-padded garment according to claim 3, characterized in that, The fan-shaped pattern unit includes a raised sewn part, and the side wall of the raised sewn part away from the fish scale pattern stitch layer is provided with a height gap with the side wall of the recessed breathable part away from the fish scale pattern stitch layer.

5. The method for sewing the surface of a cotton-padded garment according to claim 4, characterized in that, The fan-shaped texture unit is an arc-shaped fan structure, and several fan-shaped texture units are evenly staggered among each other.

6. The method for sewing the surface of a cotton-padded garment according to claim 5, characterized in that, The fan-shaped pattern unit is set at an angle.

7. A method for sewing the surface of a cotton-padded garment according to claim 6, characterized in that, Each of the individual fan-shaped texture units has the same curvature, and the overlap width of adjacent fan-shaped texture units is 2-4 mm.

8. A cotton-padded clothing manufacturing process, characterized in that: It is manufactured using the surface sewing method of any one of claims 1-7.

9. The cotton-padded clothing manufacturing process according to claim 8, characterized in that: The fan-shaped fish scale pattern and the twill texture fully cover the surface of the cotton garment, making the garment smooth, crisp, and free of bulky or bunched-up structures.

10. The cotton-padded clothing manufacturing process according to claim 9, characterized in that: The surface of the cotton-padded jacket retains an internal fluffy air layer through a fish-scale pattern stitching method, which serves both to lock in warmth and to make the garment lightweight.

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