U-shaped large-space traceless flat-foot underpants for men

Abstract

The U-shaped large-space traceless flat-foot underpants comprise an underpants body cutting piece, a front crotch cutting piece, a bottom wave cutting piece and a waistline, the upper end of the underpants body cutting piece is enclosed to form a first opening, and the lower end of the underpants body cutting piece is enclosed to form two second openings. The front crotch cutting piece is arranged on the front face of the trouser body cutting piece and connected with the trouser body cutting piece, and the middle of the front crotch cutting piece protrudes out of the trouser body cutting piece to form a U-shaped space. The bottom wave cutting piece is located between the two second openings and located on the lower side of the front crotch cutting piece, the trouser body cutting piece is connected together, the waistline is arranged at the upper end of the trouser body cutting piece and the upper end of the front crotch cutting piece, and the waistline, the trouser body cutting piece and the front crotch cutting piece are connected together in a bonding mode through polyurethane hot melt adhesive. And the waistline and the trouser body cutting piece are stably connected, so that the wearing experience of a user is more comfortable.

Description

Technical Field

[0001] This utility model relates to the field of underwear technology, and in particular to a men's U-shaped, large-space, seamless flat-leg underwear. Background Technology

[0002] In related technologies, underwear is a type of clothing worn close to the genitals by men. Since underwear needs to be worn close to the private parts for a long time, comfortable underwear is very important for men.

[0003] Traditional underwear, with its limited design and materials, can no longer meet consumer needs due to rapid changes in style. The narrow interior space of traditional underwear also leads to a poor wearing experience for men, leaving them feeling insecure in their private areas.

[0004] Furthermore, the trouser body panels and the waistband at the top are connected by sewing, which creates a protruding connecting line, resulting in a poor wearing experience for the user. After wearing them for a long time, the user will feel pressure on the waist and may even develop marks on the waist.

[0005] Therefore, it is necessary to improve existing men's underwear. Utility Model Content

[0006] The present invention aims to at least partially solve one of the problems existing in the prior art. To this end, one objective of the present invention is to propose a men's U-shaped, large-space, seamless boxer briefs with a smooth connection between the waistband and the body panels, resulting in a more comfortable wearing experience for the user.

[0007] The above objective is achieved through the following technical solution:

[0008] A men's U-shaped, spacious, seamless boxer briefs includes a body panel, a front crotch panel, a bottom panel, and a waistband. The upper part of the body panel forms a first opening, and the lower part forms two second openings. The front crotch panel is located on the front of the body panel and connected to it. The middle part of the front crotch panel protrudes from the body panel to form a U-shaped space. The bottom panel is located between the two second openings and is connected to the lower side of the front crotch panel and the body panel. The waistband is located on the upper part of the body panel and is bonded to the body panel with polyurethane hot melt adhesive.

[0009] In some embodiments, the crotch panel includes a crotch outer layer and a crotch inner layer connected together.

[0010] In some embodiments, the bottom wave panel and the trouser body panel are sewn together.

[0011] In some embodiments, the trouser body panels, the crotch panel, and the bottom wave panel are all made of a cool-feeling, antibacterial, conformal fabric.

[0012] In some embodiments, the pressing temperature for bonding the waistband and the trouser body pieces with polyurethane hot melt adhesive is 40°-70°C, the time is 11-15 seconds, and the air pressure is 0.2-0.3 kPa.

[0013] Compared with the prior art, the present invention has at least the following beneficial effects:

[0014] 1. This utility model provides a men's U-shaped, spacious, seamless boxer briefs with a smooth connection between the waistband and the body panels, resulting in a more comfortable wearing experience for the user. Attached Figure Description

[0015] Figure 1 This is a front view of the boxer briefs in the embodiment;

[0016] Figure 2 This is a schematic diagram of the back of the boxer briefs in the embodiment;

[0017] Figure 3 This is a partial schematic diagram of the boxer briefs in the embodiment;

[0018] Figure 4 This is an exploded view of the boxer briefs in the embodiment. Detailed Implementation

[0019] The following embodiments illustrate the present invention, but the present invention is not limited to these embodiments. Modifications to the specific implementation of the present invention or equivalent substitutions for some technical features, without departing from the spirit of the present invention, should all be covered within the scope of the technical solution claimed by the present invention.

[0020] Example 1: As Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, this embodiment provides a men's U-shaped, large-space, seamless boxer briefs, including a body panel 1, a front crotch panel 2, a bottom wave panel 3, and a waistband 4. The upper end of the body panel 1 forms a first opening 101, and the lower end forms two second openings 102. The front crotch panel 2 is disposed on the front of the body panel 1 and connected to it. The middle part of the front crotch panel 2 protrudes from the body panel 1 to form a U-shaped space 200. The bottom wave panel 4 is located between the two second openings 102 and is connected to the lower side of the front crotch panel 2 and the body panel 1. The waistband 4 is disposed on the upper end of the body panel 1 and is bonded to the body panel 1 with polyurethane hot melt adhesive.

[0021] The men's U-shaped seamless boxer briefs provided in this embodiment have a smooth connection between the waistband and the body panels, making the user's wearing experience more comfortable.

[0022] The boxer briefs provided in this embodiment break with traditional thinking, with health and comfort as the core concept. They solve the problem of underwear that is comfortable, skin-friendly, and unrestricted. The waistband is made of polyurethane hot melt adhesive, which can replace the traditional underwear sewing process. After it is fully cured, it has high adhesion and high resilience, can maintain a very soft feel, and exhibits excellent heat resistance and can be washed at a high temperature of 90 degrees Celsius. It also makes the composite fabric durable.

[0023] The PUR polyurethane hot melt adhesive material is melted at high temperature and flows into the guide channel. After passing through the designated guide channel path, it is heated a second time and then evenly applied to the designated waistband rib area through an air pressure nozzle. When it is semi-dry, it is bonded to the trouser body and then reinforced with a second high-temperature hot pressing.

[0024] While maintaining the original shape of underwear, it can replace the traditional underwear sewing process. After upgrading the materials and manufacturing process, the finished product has high adhesion and high resilience after it is fully cured, making it more comfortable without pressure or marks on the waist.

[0025] In this embodiment, the pressing temperature for bonding the waistband 4 and the trouser body piece 1 with polyurethane hot melt adhesive is 40°-70°, the time is 11-15 seconds, and the air pressure is 0.2-0.3 kPa.

[0026] LOCTITE NSP 7788 is a one-component, moisture-curing reactive polyurethane hot melt adhesive. This product features a long open time, good initial tack, and high peel strength. Once fully cured, it exhibits high elasticity, high deformation recovery, and an excellent hand feel, making the laminated fabric durable. This product is suitable for use in underwear, compression garments, and sports bras, and can replace traditional bra frames.

[0027] Technical Specifications:

[0028] Viscosity: 30,000-60,000 cps;

[0029] Appearance: At room temperature, it is a creamy white solid; after melting, it becomes a light yellow, translucent liquid.

[0030] Odor: It has a slight aromatic odor when melted, and becomes odorless after solidification;

[0031] Environmental label levels: Oeko-Tex Association environmental certification, Bluesign certification;

[0032] Special features:

[0033] It can withstand 90℃ water washing and has a surface drying time of 20 minutes. It can be used to apply lines (0.015-0.03mm in size) and thin strips (0.2-0.5mm in thickness). It has a soft feel, strong elasticity, high fidelity (99%), and high support. When combined with TECHNOMELT PUR 7595 slow-drying adhesive, it can be used to create underwear and other products with excellent shaping effects while being comfortable to wear.

[0034] Construction technical guidelines:

[0035] Melting pan temperature: 135-140°C;

[0036] Glue supply hose temperature: 140-150°C;

[0037] Gun tip temperature: 140-150°C;

[0038] Temperature regulation: 40-70°C / 11-15 seconds, air pressure 0.2-0.3 kPa;

[0039] Depending on the machine and the material of the fabric, adjust the temperature and time to the optimal setting during operation. During the flat pressing process, depending on the thickness of the material, wrap the heated surface of the flat press with cloth / padded with silicone or foam to achieve a better bonding effect, which will form an adhesive strip 5.

[0040] Curing:

[0041] After bonding, NSP7788 exhibits excellent initial adhesion (30%).

[0042] Initial solidification occurs in 8 hours (60%), 24 hours (90%), and 72 hours (95%) (the above data are based on environmental testing at 30℃ and 70% humidity).

[0043] Please store the bonded material in an environment with a temperature above 20℃ and a humidity of >60%. Higher temperatures and humidity will accelerate the curing process.

[0044] NSP 7788 can be applied directly to the fabric or applied to a release film and then transferred to the fabric for bonding. NSP7788 is a slow-drying adhesive with a surface drying time of 30 minutes. After applying / scraping the adhesive, the layers should not be stacked.

[0045] In this embodiment, the front crotch panel 2 includes a front crotch outer layer 21 and a front crotch inner layer 22 connected together, which can further enhance the user's wearing experience.

[0046] Preferably, the bottom wave piece 3 and the pant body piece 1 are connected by sewing. Thus, the pant pieces provided in this embodiment are connected by sewing, forming a paper-like flatness, without damaging the fabric itself, and achieving a perfect fit with zero friction against the skin.

[0047] More preferably, the trouser body panel 1, the crotch panel 2, and the bottom wave panel 3 are all made of cool-feeling antibacterial conformal fabric. By using cool-feeling and antibacterial fabric, the user's wearing comfort can be improved, the itching caused by sweat can be reduced, and the growth of bacteria can be reduced, allowing the user to stay comfortable at all times and make them feel more pleasant.

[0048] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and all such modifications and improvements fall within the protection scope of this utility model.

Claims

1. A men's U-shaped, spacious, seamless boxer briefs, characterized in that, The trouser body panel (1), the crotch panel (2), the bottom wave panel (3), and the waistband (4) are included. The upper end of the trouser body panel (1) forms a first opening (101), and the lower end forms two second openings (102). The crotch panel (2) is located on the front of the trouser body panel (1) and connected to it. The middle part of the crotch panel (2) protrudes from the trouser body panel (1) to form a U-shaped space (200). The bottom wave panel (3) is located between the two second openings (102) and is connected to the lower side of the crotch panel (2) and the trouser body panel (1). The waistband (4) is located on the upper end of the trouser body panel (1) and the crotch panel (2), and is bonded together with the trouser body panel (1) and the crotch panel (2) by polyurethane hot melt adhesive.

2. The men's U-shaped, spacious, seamless boxer briefs according to claim 1, characterized in that, The front crotch panel (2) includes a front crotch surface layer (21) and a front crotch inner layer (22) connected together.

3. The men's U-shaped, spacious, seamless boxer briefs according to claim 1, characterized in that, The bottom wave piece (3) and the trouser body piece (1) are connected by sewing.

4. A men's U-shaped, spacious, seamless boxer briefs according to claim 1, 2, or 3, characterized in that, The trouser body panel (1), the crotch panel (2), and the bottom wave panel (3) are all made of cool-feeling antibacterial conformal fabric.

5. A men's U-shaped, large-space, seamless boxer briefs according to claim 1, 2, or 3, characterized in that, The pressing temperature for bonding the waistband (4) and the trouser body piece (1) and the crotch piece (2) with polyurethane hot melt adhesive is 40°-70°, the time is 11-15 seconds, and the air pressure is 0.2-0.3 kPa.

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