Processing and manufacturing process for realizing rapid drainage and ventilation of outdoor jacket

By incorporating drainage and ventilation points at the hem of the inner lining of the jacket and underarm ventilation holes, a drainage-breathing synergistic channel is formed, solving the problems of poor drainage performance and delayed breathability in jackets, thus improving the garment's drainage efficiency and comfort.

CN121647427APending Publication Date: 2026-03-13BOSIDENG DOWN WEAR LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-19
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

Existing rain jackets suffer from poor drainage, slow breathability, and structural design limitations, resulting in water not being able to drain quickly after washing and heat and moisture accumulating under the armpits, affecting their efficiency and comfort.

Method used

Drainage and ventilation points are set on both sides of the hem inside the jacket, and ventilation holes are processed in the armpit area. A drainage-ventilation channel is formed by sewing, and convection ventilation is achieved by utilizing the rising effect of hot air from the human body.

Benefits of technology

It achieves faster drainage and improved breathability of the jacket, shortens drying time, reduces underarm humidity, improves comfort, and is suitable for promotion on existing production lines.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a processing and manufacturing process for realizing rapid drainage and ventilation of a jacket, which comprises the following steps of: 1, processing a lower hem lining flat head hole drainage structure as a washing drainage and air inlet channel; 2, processing armpit composite air hole structures; processing a plurality of air holes in the left and right armpit areas of the main fabric of the outer skin, compounding a layer of net-shaped reinforcing paste on the inner side of the outer skin corresponding to the air holes in a hot-pressing manner, and then sewing a lining; step 3, processing to form a drainage-ventilation synergistic channel; sewing the lining and the main fabric, reserving a flow guide gap, and connecting the lower hem flat head holes and the armpit air holes; and a convection path from lower hem air intake to side waist diversion and then to armpit air exhaust is formed. According to the invention, after washing, water in the lining is rapidly discharged through the hem flat-head holes, and the airing time is shortened by 15-20%; breathability is enhanced, stuffiness and skin friction are reduced, wearing experience is remarkably improved, art compatibility is high, and environment friendliness is achieved.
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Description

Technical Field

[0001] This invention relates to a manufacturing process for outdoor jackets, and more particularly to a manufacturing process for achieving rapid drainage and breathability in outdoor jackets. Background Technology

[0002] As an indispensable protective gear for outdoor sports, rain jackets generally use high-density waterproof and breathable fabrics (such as GORE-TEX, Event, etc.) to achieve windproof, waterproof, and breathable functions. However, the following problems still exist in actual use and washing:

[0003] 1. Poor drainage performance: Since most rain jackets have a closed structure, water tends to accumulate inside after washing, especially in folded areas such as the hem and armpits, where water is difficult to drain quickly, resulting in a long drying period and affecting usage efficiency.

[0004] 2. Delayed breathability response: During high-intensity exercise, heat and moisture accumulate in high-sweat areas such as the armpits and back. The micropores of the fabric alone cannot meet the instantaneous heat dissipation needs, which can easily lead to stuffiness and condensation.

[0005] 3. Structural design limitations: Existing products rely heavily on fabric performance and lack structural designs that actively guide air convection and moisture removal. Summary of the Invention

[0006] Purpose of the invention: To address the above-mentioned problems, the purpose of this invention is to provide a manufacturing process for achieving rapid drainage and breathability in outdoor jackets, thereby enabling rapid drainage and enhancing breathability.

[0007] Technical solution: A manufacturing process for achieving rapid water drainage and breathability in outdoor jackets, comprising the following steps:

[0008] Step 1: Process the flat-head eyelet drainage structure inside the hem; Set at least one drainage and ventilation point symmetrically on both sides of the hem inside the jacket. Use a high-precision buttonhole machine to make flat-head eyelets with a length of 12-15mm at the ventilation point. Keep the flat-head eyelet with a central through hole to serve as a channel for washing drainage and air entry.

[0009] Step 2: Process the underarm composite ventilation hole structure; process multiple ventilation holes in the left and right underarm areas of the outer leather main fabric, and then heat-press a layer of mesh reinforcement patch onto the inner side of the outer leather at the corresponding position of the ventilation hole before lining and sewing.

[0010] Step 3: Process to form a drainage-breathing synergistic channel; sew the lining to the main fabric, leaving a guide gap, and connect the hem eyelets and underarm ventilation holes; forming a convection path from air intake at the hem to air guidance at the side waist and then to air exhaust at the underarm.

[0011] Furthermore, in step one, there are two drainage and ventilation points located at the waist of the jacket. The drainage and ventilation points are 2-2.5cm from the top edge of the hem and 2-3cm from the side seam.

[0012] Ideally, in step one, the edges of the flat-head buttonhole are reinforced with dense stitches, with a stitch specification of 12 stitches / cm or more, and reinforced with hot melt adhesive lining.

[0013] Furthermore, in step two, the vent holes are circular, and there are three vent holes arranged in a golden triangle.

[0014] Ideally, in step two, the vent holes are processed using laser cutting.

[0015] Furthermore, in step three, the lining and the main fabric of the jacket are stitched together in a zigzag pattern to create a micro-gap.

[0016] Beneficial effects: Compared with the prior art, the advantages of the present invention are:

[0017] 1. Highly efficient drainage: After washing, the water inside is quickly drained through the flat eyelet at the bottom hem, reducing drying time by 15% to 20%;

[0018] 2. Enhanced breathability: The composite ventilation holes under the armpits and the air intake at the hem create convection, reducing underarm humidity by 25%–30% during high-intensity exercise;

[0019] 3. Improved comfort: Reduces stuffiness and skin friction, significantly improving the wearing experience;

[0020] 4. Strong process compatibility: Suitable for existing production lines and can be extended to various outdoor garments such as 3-in-1 and softshell.

[0021] 5. Green and environmentally friendly: Reduces drying energy consumption, which is in line with the concept of sustainable development. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the body structure of the flat-top eyelets and ventilation holes of the windbreaker processed according to the present invention;

[0023] Figure 2 A flowchart illustrating the process of manufacturing flat-headed eyes;

[0024] Figure 3 A schematic diagram of the process for manufacturing vent holes;

[0025] Figure 4 This is a schematic diagram of the internal airflow path. The arrows indicate the direction of convection as air enters from the hem and exits from under the armpit.

[0026] Figure 5 This is a process flow diagram of the present invention. Detailed Implementation

[0027] The present invention will be further illustrated below with reference to the accompanying drawings and specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the invention.

[0028] A manufacturing process for achieving rapid water drainage and breathability in outdoor jackets, such as... Figures 1-5 As shown, it includes the following steps:

[0029] Step 1: Process the flat-head drainage structure inside the hem;

[0030] S11: Two drainage and ventilation points are symmetrically set on both sides of the waist position of the inner hem of the jacket. The points are 2cm away from the top edge of the hem and 2cm away from the side seam, avoiding the main stress area.

[0031] S12: Use a high-precision buttonhole machine to make a flat-headed eyelet 12-15mm long at the designated location;

[0032] S13: The stitching around the keyhole is made denser, with a stitch specification of ≥12 stitches / cm, and reinforced with hot melt adhesive lining to prevent fraying;

[0033] S14: The flat-head eyelet maintains the center through hole, serving as a channel for washing drainage and air entry.

[0034] Step 2: Process the composite ventilation hole structure under the armpit;

[0035] S21: Three circular ventilation holes are laser-cut in a golden triangle pattern in the outer skin area of ​​the left and right armpits;

[0036] S22: A layer of mesh reinforcement is heat-pressed onto the inner side of the outer skin at the location corresponding to the ventilation holes to ensure that the water-repellent performance is not compromised.

[0037] S23: Sew a lining at the reinforcing patch to prevent skin from contacting the edge of the hole and to guide airflow;

[0038] Step 3: Processing to form a drainage-ventilation synergistic channel;

[0039] S31: The lining is sewn to the main fabric using a zigzag stitch to create micro-gaps and enhance air circulation;

[0040] S32: Connects the head opening at the hem to the underarm ventilation holes, forming a convection path from air intake at the hem to airflow through the side waist and then to air exhaust under the armpits. It utilizes the rising effect of hot air during human movement / chimney effect to achieve passive and efficient ventilation.

[0041] This process can be controlled with intelligent equipment, using a digital cutting bed and an automatic buttonhole system to achieve precise positioning; establish a process parameter database to automatically adjust buttonhole tension and stitch length; and generate a process traceability code for each garment to achieve quality traceability.

Claims

1. A manufacturing process for achieving rapid water drainage and breathability in outdoor jackets, characterized in that... Includes the following steps: Step 1: Process the flat-head eyelet drainage structure inside the hem; Set at least one drainage and ventilation point symmetrically on both sides of the hem inside the jacket. Use a high-precision buttonhole machine to make flat-head eyelets with a length of 12-15mm at the ventilation point. Keep the flat-head eyelet with a central through hole to serve as a channel for washing drainage and air entry. Step 2: Process the underarm composite ventilation hole structure; process multiple ventilation holes in the left and right underarm areas of the outer leather main fabric, and then heat-press a layer of mesh reinforcement patch onto the inner side of the outer leather at the corresponding position of the ventilation hole before lining and sewing. Step 3: Process to form a drainage-breathing synergistic channel; sew the lining to the main fabric, leaving a guide gap, and connect the hem eyelets and underarm ventilation holes; forming a convection path from air intake at the hem to air guidance at the side waist and then to air exhaust at the underarm.

2. The manufacturing process for achieving rapid drainage and breathability of a waterproof jacket according to claim 1, characterized in that: In step one, there are two drainage and ventilation points located at the waist of the jacket. The drainage and ventilation points are 2-2.5cm from the top edge of the hem and 2-3cm from the side seam.

3. The manufacturing process for achieving rapid drainage and breathability of a waterproof jacket according to claim 1 or 2, characterized in that: In step one, the edges of the flat-head buttonhole are reinforced with dense stitches, with a stitch specification of 12 stitches / cm or more, and are reinforced with hot melt adhesive lining.

4. The manufacturing process for achieving rapid drainage and breathability of a rain jacket according to claim 1, characterized in that: In step two, the vents are circular, and there are three vents arranged in a golden triangle.

5. A manufacturing process for achieving rapid drainage and breathability in a rain jacket according to claim 1 or 4, characterized in that: In step two, the vent holes are processed by laser cutting.

6. The manufacturing process for achieving rapid drainage and breathability of a rain jacket according to claim 1, characterized in that: In step three, the lining and the main fabric of the jacket are stitched together in a zigzag pattern to create a micro-gap.