Invisible traceless upgraded underwear
By separating the outer fabric from the cups to create a movable outer layer structure, and employing a three-layer cup and thin outer fabric design, the problem of bra cup thickness and post-wash curling is solved, achieving an invisible and seamless effect and comfort suitable for various breast shapes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGZHOU TOFFEE PIE CLOTHING CO LTD
- Filing Date
- 2025-05-14
- Publication Date
- 2026-04-21
AI Technical Summary
The existing bra cup structure has a four-layer structure, resulting in a thick cup edge that is prone to leaving marks when wearing clothes. Improper washing can also cause it to curl up, affecting the invisible and seamless effect. Furthermore, the shrinkage rate during production is uncontrollable, making it difficult to adapt to different breast shapes.
The outer fabric and cups are separated to form a movable outer layer structure. The cups have a three-layer structure. The outer fabric is made of lightweight and breathable overlock mesh fabric, and support is provided by elastic edging cloth and cup binding strips. The shoulder straps distribute the weight, and the connecting buckles keep it stable.
It avoids the curling problem caused by production and washing, increases the area covered by the fabric, adapts to various chest shapes, improves inclusiveness, ensures an invisible and seamless effect, and enhances wearing comfort and stability.
Smart Images

Figure CN224140204U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of underwear technology, and in particular to an upgraded invisible and seamless underwear. Background Technology
[0002] Underwear refers to clothing worn close to the skin. Underwear serves to keep you warm and is sometimes considered a sexual characteristic.
[0003] Currently, the most common bras on the market are underwire invisible seamless bras. Except for the cups with ultrasonic edge cutting (any fabric cut surface) which have a three-layer structure, the conventional cup structure (from the skin-contact layer to the undergarment layer) mainly has four layers: cotton lining, interlayer cotton, cotton outer lining, and outer fabric.
[0004] The three layers of cotton lining, interlayer cotton, and cotton outer lining are tightly bonded together with adhesive and cannot be separated. The outer fabric and these three layers are usually treated with edge binding, stitching, and reverse wrapping at the edge of the cup. Therefore, its invisible and traceless effect will be greatly reduced due to the following factors.
[0005] I. The quality of workmanship;
[0006] The two- or four-layer structure results in a thicker rim on the cup, which can easily leave marks when wearing clothes.
[0007] 3. The outer fabric has a higher shrinkage rate after washing than other layers, and the cup edge is prone to curling up.
[0008] Fourth, improper washing and drying methods by consumers can easily cause the rim of the cup to wrinkle and curl up.
[0009] Therefore, the cup structure needs to fully consider the cup edge process during production to upgrade the invisible effect. However, the shrinkage rate is largely uncontrollable during production and cannot be directly interfered with, just like consumers' washing habits. As a result, the bra will still experience the problem of upturning after long-term wear, and the invisible and seamless effect becomes a short-term effect. From an environmental perspective, it also greatly reduces the product's usage rate.
[0010] Therefore, a new type of invisible and seamless upgraded underwear is proposed. Utility Model Content
[0011] The purpose of this invention is to provide an invisible and seamless upgraded underwear to solve the problems mentioned in the background art.
[0012] To achieve the above objectives, the main technical solutions adopted by this utility model include:
[0013] An upgraded, invisible, seamless bra, comprising:
[0014] Bras and wearable accessories, including:
[0015] The bra includes cups, with a cover fabric movably provided on the side of the cups that is in contact with the clothing. The cups and the cover fabric share a center gore. The cups have two symmetrically arranged center gores. The cover fabric wraps around the surface of the two cups, and the cover fabric is aligned with and sewn to the cup's binding seam. The center gore and the adjacent cups each have a side panel.
[0016] The upper edge of the fabric is higher than the upper edge of the bra cup and extends to the upper chest area, and the bend of the fabric is wider than the bend of the bra cup and extends to the accessory breast area.
[0017] As a preferred technical solution, the bra cup includes a cup holder, the bottom of which is connected to a binding strip, and elastic edging cloths are provided on the upper cup edge and the bend of the cup holder.
[0018] As a preferred technical solution, the bra cup includes a cotton lining, a cotton interlayer, and a cotton outer patch arranged sequentially from the skin-contact side to the clothing-contact side. The cotton lining, the cotton interlayer, and the cotton outer patch are tightly bonded together by adhesive, and the side of the cotton outer patch away from the cotton interlayer is in contact with the outer fabric.
[0019] As a preferred technical solution, the upper cup edge and the bend of the cotton lining, the interlayer cotton, and the cotton outer lining are all sewn together as a whole using elastic binding cloth.
[0020] As a preferred technical solution, the fabric is made of thin and breathable overlock mesh fabric, and a dividing line is provided at the center of the fabric.
[0021] As a preferred technical solution, the cotton lining, interlayer cotton, cotton outer lining, and outer fabric are all sewn together with a binding strip at the binding seam, and the corresponding positions of the chicken heart and side panels are sewn to the binding strip.
[0022] As a preferred technical solution, the wearable device includes a connecting buckle disposed on the side of the two side panels away from the center of the neck. The connecting buckle includes a row of buckles and a row of hooks. The row of buckles is sewn to the end of one side panel, and the row of hooks is sewn to the end of the other side panel.
[0023] As a preferred technical solution, the wearable device also includes two shoulder straps, one end of which is sewn to the side panel above the end of the connecting buckle. The cotton lining, interlayer cotton, cotton outer lining, and elastic edge banding are all fixedly connected to the other end of the shoulder straps, and the ear loops of the outer fabric are sewn onto the shoulder straps.
[0024] This utility model has at least the following beneficial effects:
[0025] This application separates the outer fabric from the cups, creating a movable outer layer structure. This eliminates the connection between fabric shrinkage and cup size, preventing warping issues caused by factors such as manufacturing processes, shrinkage rates, and washing methods. Furthermore, the overall area of the outer fabric is not limited by cup size, allowing for arbitrary increases in coverage area. This enables actions such as covering underarm fat and increasing chest coverage. By increasing the coverage area, the thickness difference at the cup edges is smoothed out, resulting in a more seamless cup edge and improved bra fit. This enhances the bra's ability to accommodate different breast shapes, creating an invisible, seamless bra suitable for women with larger busts. Attached Figure Description
[0026] Figure 1 This is a schematic front view of the structure of this utility model;
[0027] Figure 2 This is a rear view schematic diagram of the structure of this utility model;
[0028] Figure 3 This is an exploded view of the structure of the cup and the fabric of this utility model;
[0029] Figure 4 This is a side cross-sectional view of the structure of the cup holder and the fabric of this utility model.
[0030] Figure 5 This is a side view sectional diagram of the side structure of a conventional bra cup in the prior art;
[0031] Figure 6 This is a side view comparison diagram of the structure of a conventional bra cup in the prior art and the present invention in its usage state.
[0032] In the picture: 100, bra; 110, cup; 111, cup support; 1111, cotton lining patch; 1112, interlayer cotton; 1113, cotton outer patch; 112, elastic binding tape; 120, outer fabric; 121, seam line; 130, center gore; 140, side panel; 150, binding strip; 200, accessory; 210, connecting buckle; 222, shoulder strap. Detailed Implementation
[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0034] Please see Figures 1-4This utility model provides an upgraded invisible and seamless underwear, including a bra 100 and a wearable part 200. The bra 100 includes a cup 110, and a face fabric 120 is movably provided on the side of the cup 110 that is close to the clothing. A center gore 130 is provided between the cup 110 and the face fabric 120. Two cups 110 are symmetrically arranged on the center gore 130. The face fabric 120 is wrapped around the surface of the two cups 110, and the face fabric 120 is aligned with and sewn to the cup seam of the cup 110. A side gusset 140 is provided between the center gore 130 and the adjacent cup 110. The upper cup edge of the face fabric 120 is higher than the upper cup edge of the cup 110 and extends to the upper chest area. The gusset of the face fabric 120 is wider than the gusset of the cup 110 and extends to the accessory breast area.
[0035] The bra cup 110 includes a cup holder 111. The bottom of the cup holder 111 is connected to the binding strip 150. The upper edge of the cup holder 111 and the corner are respectively provided with elastic edging cloths 112. By using elastic edging cloths 112 with elasticity to bind the edges, it can better adapt to the breast shapes of more people.
[0036] The bra cup 110 includes a cotton lining patch 1111, a cotton interlayer 1112, and a cotton outer patch 1113 arranged sequentially from the skin-contact side to the clothing-contact side. The cotton lining patch 1111, the cotton interlayer 1112, and the cotton outer patch 1113 are tightly bonded together with adhesive. The side of the cotton outer patch 1113 away from the cotton interlayer 1112 is in contact with the outer fabric 120. The bra cup 110 consists of only three layers, which makes the cup edge of the bra cup 110 thinner so that the thickness of the cup support 111 is controlled between 1.5 and 2.0 mm.
[0037] Among them, the upper cup edge and the corner of the cotton lining 1111, the interlayer cotton 1112, and the cotton outer lining 1113 are all sewn together as a whole by the elastic binding cloth 112.
[0038] The outer fabric 120 is made of a thin and breathable overlock mesh fabric, which increases the coverage area of the bra 100 without making it too stuffy, further improving the user's wearing comfort. The outer fabric 120 also has a dividing line 121 in the center, which not only makes it convenient for the user to adjust the coverage of the outer fabric 120 when wearing it, but also reinforces the center of the outer fabric 120 to extend its service life.
[0039] Among them, the cotton lining patch 1111, the interlayer cotton 1112, the cotton outer patch 1113, and the outer fabric 120 are all sewn together with the binding strip 150 at the binding line. The corresponding positions of the center gore 130 and the side panel 140 are sewn to the binding strip 150. The binding strip 150 can provide support and stability, which helps to shape a beautiful chest contour. The binding strip 150 can fit the base of the breast, so that the wearing piece 200 has a point of force to lift it up, and the support will be more powerful.
[0040] The wearable component 200 includes a connecting buckle 210 located on the side of the two side panels 140 away from the center gore 130. The connecting buckle 210 includes a row of buckles and a row of hooks. The row of buckles is sewn to the end of one of the side panels 140, and the row of hooks is sewn to the end of the other side panel 140. The connecting buckle 210 allows the bra cup 110 to be stably worn on the user.
[0041] The wearable component 200 also includes two shoulder straps 220. One end of the shoulder strap 220 is sewn to the upper part of the side panel 140 near the end of the connecting buckle 210. The cotton lining 1111, the interlayer cotton 1112, the cotton outer lining 1113, and the elastic edge banding 112 are all fixedly connected to the other end of the shoulder strap 220. The ear loops of the outer fabric 120 are sewn onto the shoulder straps 220. The shoulder straps 220 can bear the heavy responsibility of support, help to distribute the weight pressure of the bra 100 on the chest, transfer some of the weight to the shoulders, thereby reducing the burden on the chest, providing the necessary lifting and pulling effect, maintaining the good shape of the chest, and preventing the bra 100 from shifting or slipping during the user's activities, ensuring that the bra 100 always stays in the correct position, providing continuous comfort and protection for the user. At the same time, it can support the upper part of the outer fabric 120, preventing the outer fabric 120 from sagging due to the lack of positioning at the upper part, so as to maintain the overall shape of the outer fabric 120.
[0042] The working principle of this utility model is as follows: by using the cup 110 and the outer fabric 120 together, the outer fabric 120 and the cup 110 are not fixedly separated and set to become a movable outer layer structure. Then the shrinkage of the outer fabric 120 and the cup 110 will be unrelated, so as to avoid the problem of curling caused by various factors such as production workmanship, shrinkage rate, and washing method.
[0043] Women with large breasts have different breast shapes and conditions. When wearing a bra, there are three possible states: A1 and A2: normal; B1 and A2: breast compression; and C1 and A2: empty cups. The probability of each state is 1 / 3. Therefore, women with large breasts have limitations in their choice of bras.
[0044] By separating the fabric 120 from the cup 110, its area is no longer limited by the size of the cup 110, allowing for arbitrary increases in coverage area. This enables actions such as covering underarm fat and increasing the coverage of the chest. Therefore, it can improve the inclusivity for different breast shapes, making it suitable for more women with larger breasts.
[0045] After the outer fabric 120 is separated and the coverage area is increased, the outer fabric 120 extends from the edge of the cup 110 to the upper breast skin. After multiple trials by women with different breast shapes, it was found that the outer fabric 120 can smooth out the thickness difference at the edge of the cup 110, making the edge of the cup 110 more invisible and seamless. It also solves problems such as breast compression and gaping that often occur when wearing regular bras. The overall support and lifting effect also improves with the increased coverage area (e.g., Figure 6 (As shown).
[0046] In addition, the outer fabric 120 uses a thinner and more breathable overlock mesh fabric, which increases the coverage area without being too stuffy when worn; the overlock mesh fabric has thin edges and does not require further edge binding, which can smooth out the thickness difference of the cup edge of the cup 110 without creating new problems of not being invisible, and does not require additional processing to treat the rough edges, thus reducing costs.
[0047] Using elastic edging fabric for binding can better accommodate a wider range of breast shapes.
[0048] All parts not described in this utility model are the same as or can be implemented using existing technology. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this utility model, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A camouflaged, no-mark upgrade, undergarment, characterized in that, include: Bras (100) and wearable items (200), of which: The bra (100) includes a cup (110), and a face fabric (120) is movably provided on the side of the cup (110) that is close to the clothing. A center gore (130) is provided between the cup (110) and the face fabric (120). Two cups (110) are symmetrically arranged on the center gore (130). The face fabric (120) is wrapped around the surface of the two cups (110), and the face fabric (120) is aligned with and sewn to the cup (110) along with the binding line. A side panel (140) is provided between the center gore (130) and the adjacent cup (110). The upper edge of the fabric (120) is higher than the upper edge of the bra cup (110) and extends to the upper chest area. The bend of the fabric (120) is wider than the bend of the bra cup (110) and extends to the accessory breast area.
2. The invisible, mark-free upgraded innerwear of claim 1, wherein: The cup (110) includes a cup holder (111), the bottom of which is connected to a binding strip (150), and the upper cup edge and the bend of the cup holder (111) are respectively provided with elastic edging cloths (112).
3. The invisible, mark-free upgraded innerwear of claim 2, wherein: The bra cup (110) includes a cotton lining patch (1111), a cotton interlayer (1112), and a cotton outer patch (1113) arranged sequentially from the skin-contact side to the clothing-contact side. The cotton lining patch (1111), the cotton interlayer (1112), and the cotton outer patch (1113) are tightly bonded together by adhesive. The side of the cotton outer patch (1113) away from the cotton interlayer (1112) is in contact with the outer fabric (120).
4. The invisible untraceable upgraded innerwear as claimed in claim 3 wherein: The upper cup edge and the bend of the cotton lining (1111), the interlayer cotton (1112), and the cotton outer lining (1113) are all sewn together as a whole by elastic binding cloth (112).
5. The invisible untraceable upgraded innerwear as claimed in claim 4 wherein: The face fabric (120) is made of thin and breathable overlock mesh fabric, and a dividing line (121) is provided at the center of the face fabric (120).
6. The invisible untraceable upgraded innerwear as claimed in claim 5 wherein: The cotton lining (1111), interlayer cotton (1112), cotton outer lining (1113), and outer fabric (120) are all sewn together with a bowl-binding strip (150) at the bowl-binding line. The corresponding positions of the chicken heart (130) and the side panel (140) are sewn to the bowl-binding strip (150) respectively.
7. The invisible, traceless upgraded innerwear of claim 6, wherein: The wearable part (200) includes a connecting buckle (210) disposed on the side of the two side panels (140) away from the center (130), the connecting buckle (210) comprising a row of buckles and a row of hooks, the row of buckles being sewn to the end of one of the side panels (140) and the row of hooks being sewn to the end of the other side panel (140).
8. The invisible untraceable upgraded innerwear as claimed in claim 7 wherein: The wearable device (200) also includes two shoulder straps (220), one end of which is sewn to the side panel (140) above the end of the connecting buckle (210). The cotton lining patch (1111), the interlayer cotton (1112), the cotton outer patch (1113), and the elastic edge banding (112) are all fixedly connected to the other end of the shoulder strap (220). The ear loops of the outer fabric (120) are sewn onto the shoulder strap (220).