Manufacturing process of single-crotch temperature-reducing men's underpants
By using a single-layer crotch double-bone splicing process to conceal the seam, the problem of poor heat dissipation and comfort in the crotch area of men's underwear is solved, the process is simplified, and costs are reduced.
Patent Information
- Application Number
- CN202410658111.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-24
- Publication Date
- 2025-11-25
AI Technical Summary
Existing men's underwear uses double-layered fabric in the crotch area, which leads to poor heat dissipation, the seam stitching affects elasticity and comfort, and the material cost is high.
The single-layer crotch double-bone splicing process is adopted. Through steps such as double-bone spreading and lamination, the stop is hidden inside the single-layer crotch, avoiding pressure lines and marks, and realizing the splicing of the single-layer crotch.
It achieves concealment of the stop, simplifies the manufacturing process, improves comfort and reduces material costs, and avoids marks and stuffiness.
Smart Images
Figure CN121003333A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application belongs to the technical field of underpants, in particular to a manufacturing process of a single-layer crotch temperature-reducing men's underpants. BACKGROUND
[0002] Most of the existing men's underpants crotch positions use double-layer crotch position cloth to sandwich the pants cloth, and the stop position is hidden in the middle of the inner and outer crotch cloth, or the pants cloth is sewn and pressed after being bonded with the inner and outer crotch.
[0003] The above methods have the following problems:
[0004] 1. The multiple layers of cloth affect heat dissipation, causing a hot and stuffy situation when worn.
[0005] 2. The multiple layers of cloth cause the stop position to be thick, and the pressing process affects the original elasticity of the cloth, causing the crotch to be stuck and the meat to be uncomfortable.
[0006] 3. Multiple materials are used, and the cost is high. SUMMARY
[0007] In order to overcome the defects of the above-mentioned prior art, the present application provides a manufacturing process of a single-layer crotch temperature-reducing men's underpants, which is applied to the crotch part of men's underpants through the split bone splicing manufacturing process, realizes the single-layer crotch hidden stop position, and avoids the occurrence of marks, and has good comfort. The technical problem to be solved by the present application is realized by the following technical scheme:
[0008] A manufacturing process of a single-layer crotch temperature-reducing men's underpants, comprising the following steps:
[0009] Step 1, two-line split bone pulling and loosening the openings of the single-layer crotch together, the openings of the single-layer crotch are aligned, and the sharp position leaves a thread head and reverses the needle;
[0010] Step 2, two-line split bone pulling and loosening the left and right sides of the single-layer crotch together with the pants, the edges of the left and right sides of the single-layer crotch are aligned with the edges of the pants;
[0011] Step 3, fold the car and stack the bottom waves;
[0012] Step 4, fold the car and fold the trouser legs;
[0013] Step 5, ultrasonic cutting of waist head and waist length, splicing of waist head and waist length;
[0014] Step 6, fold the car and fold the waist head.
[0015] Further, step 1 further comprises the following steps:
[0016] 1-1, using two-line split bone car to bond the openings of the single-layer crotch together;
[0017] 1-2, using the drawing machine to draw open the opening of the single-layer crotch, that is, to draw open the twin bone line of the single-layer crotch, until the width of the twin bone line reaches 0.25cm-0.4cm;
[0018] 1-3, using the computer flat car order layer crotch lower tip position, single-layer crotch tip line inward folding computer flat car hidden line fixed end, back and forth needle, line length 0.5cm.
[0019] Further, step 2 further comprises the following steps:
[0020] 2-1, using two-line twin bone car to hook the left and right sides of the single-layer crotch and the trousers together,
[0021] 2-2, adjust the upper and lower hook lines on the sewing machine to a relaxed state, and adjust the face line to a relaxed state to the side position of the cloth, and keep the bottom line in the same direction, and adjust to a state that can be drawn open;
[0022] 2-3, using the drawing machine to draw open the two sides of the single-layer crotch, that is, to draw open the twin bone line between the left and right sides of the single-layer crotch and the trousers, until the width of the twin bone line reaches 0.25cm-0.4cm.
[0023] The present application has the following advantages:
[0024] 1. Single-layer splicing realizes hidden stop, solving the problem that the stop can only be hidden in the double-layer crotch.
[0025] 2. The present application hides the stop, so that there is no need to press the line on the stop hem, simplifying the process.
[0026] 3. Since the stop is hidden, there is no protruding position to rub the skin, avoiding the generation of scratches, and good comfort. BRIEF DESCRIPTION OF DRAWINGS
[0027] Figure 1 is a structural schematic diagram of the present application;
[0028] Figure 2 is a rear view of Figure 1 ;
[0029] Figure 3 is an exploded schematic diagram of Figure 1 . DETAILED DESCRIPTION
[0030] As shown in Figures 1 to 3 , a manufacturing process of a single-layer crotch cooling men's underpants comprises the following steps:
[0031] Before starting, adjust the sewing machine according to the elasticity, thickness, softness and thickness of the cloth and the sewing thread, adjust the sewing machine to a suitable degree that the cloth can be drawn open, cut the cloth into a single-layer crotch 1, a trousers body 2 and a bottom crotch 3, and the middle lower part of the single-layer crotch 1 is provided with an opening 1.1.
[0032] Step 1, two-line twin bone pull together the opening 1.1 of the single-layer crotch 1, the opening 1.1 of the single-layer crotch 1 is aligned, the sharp position is trimmed by 1 cm, the sharp position is left with a thread end, the thread end is prevented from being scattered, the flat service is completed without the mouth being broken, the angle cannot be raised, and the left and right are symmetrical.
[0033] Step 2, two-line twin bone pull together the left and right sides of the single-layer crotch 1 and the trousers 2, the edges of the left and right sides of the single-layer crotch 1 are aligned with the edges of the trousers 2, the flat service is completed without the mouth being broken, the angle cannot be raised, and the left and right are symmetrical.
[0034] Step 3, fold the car to the bottom wave, the entrance and exit are flush, the bottom surface is lowered and the needle is folded, the stop mouth cannot be exposed, the flat service cannot be raised, and the left and right are symmetrical.
[0035] Step 4, fold the car to fold the trousers, fold the stop mouth, the stop mouth is uniform, the bottom does not expose the stop mouth, the joint is overlapped (the overlap is neat), the flat service cannot be twisted, the size is accurate, the line is moderately loose, and the pull cannot be broken.
[0036] Step 5, ultrasonic wave cuts the waist head and the length, splices the waist head and the length, splices tightly and relies on each other, the length does not overlap, the pull cannot be broken, the upper and lower stop mouths cannot be convex, the thread points are dense and flat, and the head and tail are reversed.
[0037] Step 6, fold the car to fold the waist head, splice the length at the back middle, raise the needle, the surface is concave, the bottom cannot expose the stop mouth, the shrinkage is uniform, the size is accurate, the left and right are symmetrical, the line is beautiful, and the pull cannot be broken.
[0038] Step 1 of the embodiment further includes the following steps:
[0039] 1-1, use two-line twin bone car to pull together the opening 1.1 of the single-layer crotch 1.
[0040] 1-2, use a puller to pull apart the opening 1.1 of the single-layer crotch 1, that is, pull apart the twin bone line 4 of the single-layer crotch 1, the pulling force of the puller is 0.3kg-0.7kg, until the width of the twin bone line reaches 0.25cm-0.4cm, the pulling force of the embodiment is 0.5kg, the width of the twin bone line reaches 0.3cm, the effect must be good, the line must be smooth, and the left and right are symmetrical.
[0041] 1-3, use a computer flat car to order the lower sharp position of the single-layer crotch 1, the order is fixed, which is a common term in the industry, the two-line twin bone will have a thread end left at the entrance and exit of the cloth, to prevent the thread end from being scattered, the left thread end is fixed, the single-layer crotch 1 sharp position line is folded inward, the computer flat car hidden line fixes the thread end, back and forth needle reversal, and the car line is 0.5cm long.
[0042] Step 2 of the embodiment further includes the following steps:
[0043] 2-1, the left and right sides of the single-layer crotch 1 are connected with the trousers body 2 by using two-line twin bone car.
[0044] 2-2, the upper and lower hook threads are adjusted to a relaxed state, the face thread is adjusted to a cloth side position and kept in the same direction with the bottom thread, and is adjusted to a state that can be pulled apart, the left and right edges of the single-layer crotch 1 are aligned with the edges of the trousers body 2, and the flat and smooth mouth, the non-angled, and the left-right symmetry are completed.
[0045] 2-3, the two sides of the single-layer crotch 1 are pulled apart by using a pulling machine, that is, the twin bone threads 5 between the left and right sides of the single-layer crotch 1 and the trousers body 2 are pulled apart, the pulling force of the pulling machine is 0.5 kg, and the width of the twin bone thread reaches 0.3 cm until the effect is good, the thread is smooth, and the left and right sides are symmetrical.
[0046] Finally, the product is cut and ironed, and then can be packaged, the whole pair of trousers is flat and smooth, is worn close and comfortable.
[0047] The present application has the following advantages:
[0048] 1. The single-layer splicing realizes the hiding of the mouth, the opening connection of the single-layer crotch and the connection between the left and right sides of the single-layer crotch and the trousers body are pulled apart by using a pulling machine, the twin bone threads are uniformly pulled apart to both sides, the width reaches 0.25-0.4 cm, the mouth is hidden in the twin bone thread, and the problem that the crotch double layer can hide the mouth is solved.
[0049] 2. The present application hides the mouth and does not need to press the thread on the mouth hem, and simplifies the process.
[0050] 3. Since the mouth is hidden, there is no protruding position to rub the skin, and the generation of the scratch is avoided, and the comfort is good.
Claims
1. A process for making a single-layered crotch temperature-reducing men's brief, characterized by, The method comprises the following steps: Step 1, two-line twin bone puller is used to sew the opening of the single-layer crotch together, the opening of the single-layer crotch is aligned, and the tip position is left with a thread end and inverted needle; Step 2, two-line twin bone puller is used to sew the left and right sides of the single-layer crotch and the trousers together, the edge of the left and right sides of the single-layer crotch is aligned with the edge of the trousers; Step 3, car fold bottom wave; Step 4, car fold trousers; Step 5, ultrasonic cutting waist thread and length, and splicing waist thread and length opening; Step 6, car waist thread.
2. The process for making a single-ply, reduced temperature men's brief according to claim 1, wherein, The step 1 further comprises the following steps: 1-1, two-line twin bone car is used to sew the opening of the single-layer crotch together; 1-2, the opening of the single-layer crotch is pulled open by a puller, that is, the twin bone line of the single-layer crotch is pulled open until the width of the twin bone line reaches 0.25cm-0.4cm; 1-3, the tip position of the single-layer crotch is inverted needle by computer flat car, and the computer flat car hidden line fixing thread is folded inward, and the needle is inverted back and forth, and the thread length is 0.5cm.
3. The process for making a single-ply, reduced temperature men's brief according to claim 1, wherein, The step 2 further comprises the following steps: 2-1, two-line twin bone car is used to sew the left and right sides of the single-layer crotch and the trousers together, 2-2, the upper hook and the lower hook of the car are adjusted to a relaxed state, the face thread is adjusted to a cloth edge side position, and the bottom thread is kept in the same direction, and the face thread is adjusted to a pullable state; 2-3, the left and right sides of the single-layer crotch are pulled open by a puller, that is, the twin bone line between the left and right sides of the single-layer crotch and the trousers is pulled open until the width of the twin bone line reaches 0.25cm-0.4cm.