Lady briefs

Abstract

The present application relates to a kind of lady's no trace underpants.It contains: pant body, the pant body includes front piece and back piece, the front piece is connected with the back piece by side bone, the side bone is obliquely arranged along the side of underpants, one end of the side bone is extended to the front end of waist opening or both sides of pant body, the other end of the side bone is extended to the rear end of foot opening of pant body, for avoiding the arching of the side of the pant body.The front piece and the back piece are connected by the obliquely arranged side bone, and extend to the front end of waist opening and the rear end of foot opening, effectively dispersing the force on the side, avoiding the arching of the side of the pant body, with the advantages of improving wearing comfort and appearance flatness.

Description

Technical Field

[0001] This utility model relates to the field of clothing technology, specifically to women's seamless underwear. Background Technology

[0002] As women's underwear designs increasingly prioritize comfort and discreetness, seamless underwear has gradually become a mainstream choice due to its seamless fit, comfortable wear, and minimal visible marks on outer clothing. However, existing seamless women's underwear still has certain structural design issues.

[0003] Firstly, traditional seamless underwear usually uses vertical stitching or seamless one-piece cutting. Although this can reduce the appearance of seams, when the side structure lacks a reasonable partition design, it is easy for uneven force to cause side arching or rolling during wear, affecting the appearance and wearing experience.

[0004] Secondly, most existing seamless underwear uses a straight-line stitching structure in the side seams or seam areas, which cannot conform well to the curves of the waist and upper thighs, leading to problems such as tightness, marks, or shifting. In addition, some seamless underwear completely eliminates the side seam design in order to reduce seam marks. Although it looks simple, it loses structural support and is more prone to deformation or instability when worn.

[0005] Therefore, the existing design of seamless women's underwear cannot effectively solve problems such as side arching and poor fit stability, and a new structural design is urgently needed to improve it. Utility Model Content

[0006] The purpose of this utility model is to address the shortcomings and deficiencies of the existing technology by providing a seamless women's underwear that effectively prevents the sides of the underwear from arching, improves wearing comfort and appearance.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] A type of seamless women's underwear, comprising:

[0009] The pant body includes a front piece and a back piece, which are connected by side bobs. The side bobs are obliquely arranged along the side of the pant body, with one end extending to the front or sides of the waistband and the other end extending to the rear of the leg opening, in order to prevent the sides of the pant body from arching.

[0010] The present invention is further provided that the lateral bone is arc-shaped to conform to the contour of the side of the body.

[0011] In a further embodiment of this invention, the lateral bones are connected to the front and rear pieces by a thermo-pressing adhesive method.

[0012] The present invention further includes a crotch piece in the pant body, which is located in the lower connecting area between the front and back pieces.

[0013] The present invention further provides that the front piece, back piece, and crotch piece of the trousers are made of elastic fabric and cut as a whole.

[0014] The present invention further includes a layer of moisture-absorbing fabric on the inner side of the crotch piece.

[0015] In a further embodiment of this invention, the area of ​​the moisture-absorbing fabric is smaller than the area of ​​the crotch piece.

[0016] The present invention further provides that the inner side of the back piece of the pants has a buttock-fitting area, which is arranged along a heart-shaped outline.

[0017] The present invention further provides that the buttock-fitting area is formed by localized adhesive bonding or elastic treatment to enhance the wrapping and support of the buttocks.

[0018] In a further embodiment of this invention, the waistband and leg openings of the trousers are formed by laser cutting.

[0019] After adopting the above technical solution, the beneficial effects of this utility model are as follows: the obliquely set side bone connects the front piece and the back piece, and extends to the front end of the waist and the rear end of the leg opening, effectively dispersing the side force and preventing the sides of the pants from arching, which has the advantages of improving wearing comfort and appearance flatness. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a side view diagram of the seamless underwear for women.

[0022] Figure 2 This is a schematic diagram of the front structure of women's seamless underwear;

[0023] Figure 3 This is a schematic diagram of the reverse side structure of women's seamless underwear;

[0024] Explanation of reference numerals in the attached figures:

[0025] 10. Pant body; 11. Front panel; 12. Back panel; 13. Side seams; 14. Waistband; 15. Leg openings; 16. Crotch panel; 17. Moisture-wicking fabric layer; 18. Hip-fitting area. Detailed Implementation

[0026] The present invention will be further described in detail below with reference to the accompanying drawings.

[0027] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive element, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

[0028] This embodiment relates to a seamless women's underwear, as shown in the following figure. Figure 1 as well as Figure 2 Women's seamless underwear includes a pant body 10, which includes a front piece 11 and a back piece 12. The front piece 11 and the back piece 12 are connected by side bobs 13. The side bobs 13 are obliquely arranged along the side of the pant body. One end of the side bob 13 extends to the front or sides of the waistband 14 of the pant body 10, and the other end of the side bob 13 extends to the rear of the leg opening 15 of the pant body 10 to prevent the sides of the pant body 10 from arching.

[0029] The lateral bone 13 refers to the strip-like structure connecting the front piece 11 and the rear piece 12. It can be achieved using a heat-pressing bonding process to create a seamless seam, and its oblique orientation forms an angle with the natural curve of the human body from the waist to the buttocks. The lateral bone 13 extends to the front or sides of the waist opening 14 to cover the movement fulcrum of the iliac crest region, while the design extending to the rear of the ankle opening 15 can constrain the displacement of the groin. The front of the waist opening 14 can be a position that wraps around the abdomen, while the aforementioned sides can be positions that wrap around the sides of the waist.

[0030] Specifically, the front panel 11 and the back panel 12 form a continuous support structure through the oblique lateral bones 13. During human movement, the lateral bones 13 convert the longitudinal tension from the waist opening 14 to the ankle opening 15 into an oblique component force, allowing the fabric to spread evenly along the extension direction of the lateral bones 13. For example, during bending over, the lateral bones 13 absorb the lateral stretch between the waist and thighs through their oblique extension, preventing localized fabric accumulation. Simultaneously, the two ends of the lateral bones 13 are fixed at key positions at the front end of the waist opening 14 and the rear end of the ankle opening 15, forming a suspension bridge-like mechanical structure that enhances the deformation resistance of the lateral area.

[0031] Through the above technical solution, this application solves the problems of side arching and poor fit stability in traditional seamless underwear. The oblique side bone 13 structure can conform to the curves of the human body and disperse the tension generated by movement, maintaining the flatness of the side area. The extended design of the waistband 14 and leg opening 15 forms multi-point fixation, effectively suppressing the displacement of the fabric during dynamic wearing, improving wearing comfort and appearance concealment.

[0032] Preferably, refer to Figure 1The lateral bone 13 is curved and designed to fit the contours of the body's side.

[0033] Among them, the arc-shaped lateral bone 13 refers to the lateral bone 13 being a curved line. Specifically, it can be achieved by using hot pressing to form a continuous curved seam. Its curvature matches the natural curve of the human body from the side waist to the root of the thigh. By adapting the shape, the linear pressure on the skin caused by the straight lateral bone 13 is eliminated.

[0034] Among them, conforming to the body's side contour means that the overall direction of the lateral bone 13 is consistent with the physiological curve of the human body's side. Specifically, this can be achieved by adjusting the curvature of the lateral bone 13 to cover the surface curvature of the area from the iliac bone to the greater trochanter, thereby ensuring that the contact surface between the side of the underwear and the skin is evenly stressed and reducing local pressure concentration.

[0035] Specifically, the curved design of the lateral bone 13 allows its bending path to cover the main active area from the waist to the root of the thigh. When the wearer sits or walks, the curvature of the lateral bone 13 can elastically deform with the movement of the limbs, avoiding creases or stretching at the bending points caused by the straight-line splicing structure. At the same time, the curved lateral bone 13 forms a seamless seam through heat-pressing bonding, maintaining structural stability while avoiding the friction and irritation to the skin caused by traditional sewing stitches.

[0036] Preferably, refer to Figure 1 The lateral bone 13 is connected to the anterior piece 11 and the posterior piece 12 by thermo-press bonding.

[0037] Among them, the hot-press bonding method refers to bonding the front piece 11 and the side bone 13 area of ​​the back piece 12 together through a hot-press process. Specifically, it can be achieved by using hot melt adhesive film or hot-press bonding equipment. Heat and pressure are used to melt and bond the edges of the fabric to form a smooth seam without any gaps.

[0038] Specifically, the side rib 13 areas of the front piece 11 and the back piece 12 are pre-cut into obliquely extending butt joint edges. During the hot-press bonding process, the butt joint edges are covered with a hot melt adhesive film and placed in a hot-press device. By controlling the temperature and pressure parameters, the adhesive film melts and penetrates into the gaps between the fabric fibers. After cooling, a continuous adhesive strip without raised seams is formed. This adhesive strip extends obliquely along the side rib 13, which not only avoids the hard edges produced by traditional seams, but also distributes the stress evenly on the side through oblique distribution, thereby preventing arching deformation caused by local stress concentration on the side.

[0039] Preferably, refer to Figure 2 as well as Figure 3 The trouser body 10 also includes a crotch piece 16, which is located in the lower connecting area between the front piece 11 and the back piece 12.

[0040] The crotch piece 16 refers to the cut piece that covers the crotch area of ​​the human body. Specifically, it can be achieved by heat-pressing and bonding it to the edges of the front piece 11 and the back piece 12 to enhance the support and structural stability of the crotch area. Alternatively, the crotch piece can also be integrally formed with the front piece 11 and the back piece 12.

[0041] The lower connecting area refers to the transition area where the front piece 11 and the back piece 12 meet at the bottom of the trouser body 10. Specifically, this can be achieved by extending both ends of the crotch piece 16 to the bottom edges of the front piece 11 and the back piece 12, respectively, to form a continuous seamless connecting structure.

[0042] Specifically, the crotch panel 16 is configured to form a three-way connection structure with the lower edges of the front panel 11 and the back panel 12, with its top edge seamlessly joined to the bottom edges of the front panel 11 and the back panel 12, respectively. The width of the crotch panel 16 can be ergonomically designed to cover the area from the perineum to the groin, adapting to different body types through the stretch of the elastic fabric. The connection lines between the crotch panel 16 and the front panel 11 and back panel 12 extend along the natural force direction when the human body is in a sitting posture, allowing the load in the crotch area to be evenly distributed to the front panel 11 and the back panel 12.

[0043] Preferably, refer to Figure 2 as well as Figure 3 The front piece 11, back piece 12, and crotch piece 16 of the trouser body 10 are made of elastic fabric and cut as a whole.

[0044] The process involves cutting the same elastic fabric using a uniform layout and then assembling it using hot pressing or seamless splicing to create a compact, naturally fitting, seamless underwear body.

[0045] The elastic fabric can be made of a composite material of nylon and spandex, which combines high elasticity and good resilience, adapting to the wearer's body deformation under static and dynamic conditions, maintaining a good fit and stability. The one-piece cutting and molding process avoids the problems of thick edges and raised seams that occur with traditional multi-piece underwear, significantly improving wearing comfort and aesthetics.

[0046] Furthermore, since the front piece 11, back piece 12 and crotch piece 16 are not connected by traditional edging or stitching, but are connected smoothly by pressure bonding or laser bonding, the stitching is almost imperceptible during the wearing of the underwear. Combined with the diagonally set side bone 13 structure in this application, it effectively alleviates the problem of arching deformation caused by stress concentration on the side, thereby improving the overall fit and practical stability.

[0047] Preferably, refer to Figure 2 The crotch panel 16 has a layer of moisture-absorbing fabric on the inside.

[0048] Among them, moisture-wicking fabric refers to a polymer fiber fabric layer with capillary effect. Specifically, it can be formed by laminating honeycomb-structured cotton blend materials or bamboo fiber non-woven fabrics. The microporous structure formed by the fiber gaps enables rapid absorption and diffusion of liquids.

[0049] Specifically, the inner side of the crotch panel 16 is secured with a moisture-wicking fabric layer 17 using ultrasonic bonding or seamless heat fusion. This moisture-wicking fabric completely covers the areas of the body prone to sweating corresponding to the crotch panel 16. When worn, the microporous structure of the moisture-wicking fabric quickly captures sweat and guides it to the outer crotch panel 16, while keeping the surface in contact with the skin dry. The edges of the moisture-wicking fabric are laser-cut to create a gradient finish, ensuring that its coverage area is smaller than the main body of the crotch panel 16, thus avoiding affecting the overall elastic recovery performance of the crotch panel 16 due to an excessively large moisture-wicking layer.

[0050] Preferably, refer to Figure 2 The area of ​​the moisture-absorbing fabric is smaller than the area of ​​the crotch panel.

[0051] The crotch panel 16 has moisture-wicking fabric only in localized areas on its inner side, such as forming a rectangular or oval covering area in the center of the crotch, while the rest retains the breathability and stretch of the elastic fabric. By limiting the coverage area of ​​the moisture-wicking fabric to be smaller than the overall area of ​​the crotch panel 16, the moisture-wicking function can be maintained while avoiding the stuffiness caused by excessive moisture-wicking material accumulation, and the elastic shrinkage ability of the edge area of ​​the crotch panel 16 can be preserved to enhance the fit.

[0052] Preferably, refer to Figure 3 The back panel 12 of the pants body 10 has a buttock-fitting area 18 on the inside, which is arranged along a heart-shaped outline.

[0053] The buttock-fitting area 18 refers to a specific structure located inside the back piece 12 and covering the buttock area. This can be achieved through localized adhesive bonding or elastic treatment to enhance the wrapping and support of the buttocks when worn. The heart-shaped contour design means that the shape of the edge of the fitting area matches the natural curve of the human buttocks. This can be achieved through molding or hot pressing, making the edge of the fitting area narrower at the top and wider at the bottom, and symmetrical on both sides, thus more closely conforming to the contour of the buttocks (i.e., the edge line of the aforementioned fitting area is symmetrical from left to right, with the upper part tapering inward and the lower part gradually flaring outward, forming an overall curved shape that is tapered at the top and flared at the bottom, and symmetrical from left to right).

[0054] Specifically, the buttock-fitting area 18 on the inner side of the back panel 12 covers the main pressure-bearing area of ​​the buttocks with a heart-shaped outline. When the underwear is worn, the elastic treatment or seam-sealing structure at the edge of the fitting area can evenly distribute the pressure on the buttocks and reduce fabric displacement caused by movement. The narrower upper part of the heart-shaped outline corresponds to the waist-hip transition area, while the wider lower part covers the junction of the lower buttocks and the root of the thigh, achieving a dynamic fit through shape adaptation.

[0055] Preferably, refer to Figure 3 The buttock-fitting area 18 is formed by localized adhesive bonding or elastic treatment to enhance the wrapping and support of the buttocks.

[0056] Localized bonding refers to forming an adhesive layer on the fabric surface using a hot melt adhesive film. This can be achieved by applying temperature and pressure to a predetermined area using hot pressing equipment. After the adhesive layer and the fabric are combined, a structure with directional support is formed. Elastic treatment refers to physically or chemically modifying a specific area of ​​the fabric to increase its resilience. This can be achieved through blending high-elasticity fibers or adjusting the local weave density, allowing the area to return to its original shape after stretching.

[0057] Specifically, the heart-shaped contour of the buttock-fitting area 18 is designed to cover the gluteus maximus and ischial tuberosity region. The adhesive layer formed by localized seam sealing creates a differentiated distribution of support force in the longitudinal and transverse directions, while the elastic-treated fabric undergoes directional deformation during hip movement. When the wearer sits or walks, the seam sealing area limits excessive fabric stretching through the structural rigidity of the adhesive layer, while the elastic-treated area actively adapts to changes in hip shape through fiber resilience. The combined effect of these two elements ensures that the underwear maintains a three-dimensional wrap around the buttocks during dynamic movement.

[0058] In some specific embodiments, localized pressing can be replaced by a UV-cured adhesive layer, and elastic treatment can be replaced by implanting silicone strips in a predetermined area. The temperature of the hot pressing equipment can be controlled at 120-150℃, the pressure can be set to 0.3-0.5MPa, and the action time can be maintained at 8-12 seconds. The blending ratio of high-elasticity fibers can be set to a combination of 15-20% spandex and 80-85% nylon.

[0059] Preferably, refer to Figure 2 The waistband 14 and leg opening 15 of the trouser body 10 are formed by laser cutting.

[0060] Laser cutting refers to the precise cutting of materials using a high-energy-density laser beam, which can be achieved using a carbon dioxide laser or a fiber laser. The cutting path and depth are controlled by a numerical control system. This method can avoid the burrs or indentations produced by traditional cutting, while maintaining the original tensile properties of elastic fabrics.

[0061] Among them, waist opening 14 and leg opening 15 refer to the upper and lower edge openings of the underwear. Specifically, the edge contour can be smoothed and burr-free by adjusting the laser parameters. The thermal effect of laser cutting can slightly melt the cutting area, forming a natural edge finishing effect, thereby eliminating the friction and irritation of the sutures to the skin.

[0062] Specifically, the edges of the waistband 14 and leg openings 15 are processed using laser cutting equipment, with the cutting path pre-set according to the ergonomic curve. During the cutting process, the laser beam acts on the surface of the elastic fabric in a non-contact manner, precisely removing excess material to form a seamless opening structure with smooth edges. Because the cutting process does not require physical pressing or sewing, the elastic fibers of the waistband 14 and leg openings 15 remain intact, allowing for even pressure distribution when worn and preventing localized marks.

[0063] The above is only used to illustrate the technical solution of this utility model and not to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. A lady's seamless panty characterized in that, include: The pant body (10) includes a front piece (11) and a back piece (12). The front piece (11) and the back piece (12) are connected by a side bone (13). The side bone (13) is obliquely arranged along the side of the pant. One end of the side bone (13) extends to the front end or sides of the waistband (14) of the pant body (10), and the other end of the side bone (13) extends to the rear end of the leg opening (15) of the pant body (10) to prevent the sides of the pant body (10) from arching.

2. The lady's seamless panty according to claim 1, characterized in that, The lateral bone (13) is arc-shaped and is used to fit the contour of the side of the body.

3. The panty of claim 1 or 2, wherein, The lateral bone (13) is connected to the anterior piece (11) and the posterior piece (12) by thermo-press bonding.

4. The lady's seamless panty according to claim 1, wherein The trouser body (10) also includes a crotch piece (16), which is located in the lower connecting area between the front piece (11) and the back piece (12).

5. The panty of claim 4, wherein, The front (11), back (12) and crotch (16) of the trousers (10) are made of elastic fabric and cut as a whole.

6. The female seamless panty according to claim 4, wherein, The crotch piece (16) has a layer of moisture-absorbing fabric on its inner side.

7. The panty of claim 6 wherein, The area of ​​the moisture-absorbing fabric is smaller than the area of ​​the crotch panel.

8. The lady's seamless panty according to claim 1, wherein The back panel (12) of the pants (10) has a buttock-fitting area (18) on the inside, which is arranged along a heart-shaped outline.

9. The panty of claim 8, wherein, The buttock-fitting area (18) is formed by localized adhesive bonding or elastic treatment to enhance the wrapping and support of the buttocks.

10. The lady's seamless panty according to claim 1, wherein The waistband (14) and leg opening (15) of the trouser body (10) are formed by laser cutting.

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