A manufacturing process for a new type of strapless bra

Abstract

The present invention provides a manufacturing process for a new type of strapless bra, which includes the following processes: S1: Fix an elastic material at the edge part of a cup cut piece to form a composite cut piece; S2: The composite cut piece shrinks under the action of the elastic material, and an arc-shaped curved surface is formed on the inner side of the cut piece in contact with the human body and the outer side of the cut piece in contact with the clothing; S3: Put the composite cut piece into a mold for hot pressing to form a cup; S4: Combine and fix two symmetrical cups to form a finished cup; S5: Combine and fix the lower edge of the finished cup with a tension structure; S6: Fix both sides of the finished cup to the cup band of the bra; S7: Fix both sides of the tension structure to the cup band of the bra as a whole to form a finished bra. The manufacturing process for the new type of strapless bra provided by the invention can manufacture a bra with the function of a shoulder strap, solve the quality problem that the traditional strapless bra product is prone to move after being worn, and is comfortable and beautiful.

Description

Technical Field

[0001] The present invention relates to the field of clothing, and particularly to a manufacturing process for a novel strapless bra. Background Art

[0002] For the manufacturing process of existing strapless bra products, basically, cut pieces of sponge or related materials are directly placed on a mold, and after hot pressing and forming, additional components such as cups and steel rings are sewn on.

[0003] For the strapless bra products made by this process, after supporting and wrapping the human body and chest, due to the action of human muscles and movement, relative displacements in the up, down, left, and right directions will occur. After wearing the product, it is likely to move relative to the chest, and there is a risk of the bra coming off the chest and exposing the chest, reducing the comfort and aesthetic effect of the strapless bra product.

[0004] Therefore, the clothing industry, especially the bra cup industry, is in urgent need of a new process to manufacture strapless bra products. This new process does not require special equipment and can produce strapless bra products with the functions of a strapped bra by using conventional means. After supporting and wrapping the human chest, this new type of strapless bra product not only has uniform force but also will not generate relative displacement to the human body because it has no straps, being beautiful and comfortable. Summary of the Invention

[0005] In view of this, the present invention aims to propose a manufacturing process for a novel strapless bra, which can have the functions of a strapped bra and solve the quality problem that traditional strapless bra products are prone to move after being worn.

[0006] To achieve the above object, the technical solution of the present invention is realized as follows:

[0007] A manufacturing process for a novel strapless bra, wherein the novel strapless bra includes a finished cup and a bra cup part, the finished cup is fixedly connected to the bra cup part, and a tension structure is fixedly connected to the finished cup. The manufacturing process for the novel strapless bra includes the following technological steps:

[0008] S1: Fix an elastic material at the edge part of the cup cut piece to form a composite cut piece;

[0009] S2: The composite cut piece shrinks under the action of the elastic material, and an arc-shaped curved surface is formed on the inner side of the cut piece in contact with the human body and the outer side of the cut piece in contact with the clothing;

[0010] S3: Place the composite cut piece into a mold for hot pressing and forming to form a cup;

[0011] S4: Combine and fix two symmetrical cups to form a finished cup;

[0012] S5: Combine and fix it at the lower edge of the finished cup with the tension structure;

[0013] S6: Fix both sides of the finished cup to the cup part of the bra;

[0014] S7: Fix both sides of the tension structure to the cup part of the bra as a whole to form a finished bra.

[0015] Furthermore, the tension structure connects the two cups, plays a role in connecting and fixing the cups, and at the same time can ensure that the bra has the functions of supporting and lifting the chest.

[0016] Furthermore, the lower edge of the tension structure is flush with the lower edge of the cup part of the bra, which can look neat and beautiful and is comfortable to wear. If the lower edge of the tension structure protrudes, it will cause an uncomfortable wearing experience. If the lower edge of the cup part of the bra protrudes, it may cause insufficient supporting force of the tension structure, unable to support the chest well, and the bra is prone to deformation.

[0017] Furthermore, the tension structure is strip-shaped or belt-shaped. The strip-shaped or belt-shaped shape is simple, easy to cut, convenient to fix with the cup or the cup part, can withstand a certain supporting force, and when the human muscles move, it offsets part of the force on the bra upward and in other directions, playing a role in restricting and fixing the bra product.

[0018] Furthermore, the tension structure is fixed to the inner side of the finished cup. Some muscles of the breast can be incorporated into the middle and lower part of the cup. The breast is supported by the tension structure at the bottom of the cup. At the same time, the tension structure at the bottom of the cup holds the lower edge of the breast, can support and lift the breast to prevent the breast from sagging, and plays a role in supporting the breast while covering the breast, playing a role in shaping and fixing the bra product.

[0019] Furthermore, the fixing method of the elastic material to the cup cut piece is sewing or pasting or welding or fusing. The fixing method of the elastic material to the cup cut piece can be realized by using ordinary production equipment and processes.

[0020] Furthermore, the elastic material includes one or more kinds, and the cup cut piece includes one or more kinds. Setting multiple elastic materials on the same cup cut piece is beneficial for selecting multiple colors for matching and making the cup have diverse shapes, which is more popular among beauty-loving women. While setting one kind of elastic material on the same cup cut piece is simple and generous, suitable for the needs of different consumers. The same cup cut piece can include one or more materials, which can better play a supporting role.

[0021] Furthermore, the edge of the cup piece is a local edge or an overall edge. The combination of the elastic material and the cup piece is determined according to the elasticity of the elastic material and the material, cup size, and aesthetic requirements of the bra cup piece. When the same type of elastic material is combined with the same type of cup piece, the elasticity generated by the elastic material fixed on the local edge is smaller, and the deformation of the composite piece is smaller. The elastic material is fixed on the overall edge, and the elasticity generated is larger, and the deformation of the composite piece is larger.

[0022] Furthermore, the elastic material is stretched and fixed to the cup piece, and tension is generated after the elastic material is stretched, causing elastic deformation. When the elastic material is fixed to the cup piece, the elastic material shrinks, so that the composite piece forms a curved surface.

[0023] Furthermore, the elastic material and the cup cut piece are thermoformed to form an integrated structure, which does not produce bulges and is comfortable to wear.

[0024] Compared with the prior art, the novel strapless bra manufacturing process described in the present invention has the following beneficial effects:

[0025] (1) The present invention provides a novel strapless bra manufacturing process. The novel strapless bra product manufactured by the present invention has balanced force when worn, is comfortable and beautiful, and after people wear the newly patented strapless bra product, the bra product will not produce relative displacement up, down, left or right, etc., and the position is relatively fixed. It can have the functions of a bra with straps, thereby improving the function and quality of the product and having a very good market prospect.

[0026] (2) The novel strapless bra manufacturing process provided by the present invention reduces the material cost of the product and achieves energy conservation and emission reduction. It uses ordinary production equipment or processes to fix the elastic material in the position of the flat cut piece, and does not require special dedicated equipment or processes. It is suitable for large-scale production and promotion and application in workshops.

[0027] (3) The present invention provides a novel process for manufacturing a strapless bra, which is comfortable to wear. The materials are matched with different colors to decorate or embellish the shape of the bra cup. The bra is suitable for different bra styles, thereby improving the quality and competitiveness of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of a novel strapless bra according to an embodiment of the present invention;

[0029] Figure 2 This is a schematic diagram of a state before the cup piece and the elastic material are combined according to the first embodiment of the present invention;

[0030] Figure 3 It is a schematic diagram of a front side view of a cup panel and an elastic material combined according to an embodiment of the present invention;

[0031] Figure 4 Schematic diagram of the composite piece state after the cup piece and the elastic material are combined according to the first embodiment of the present invention;

[0032] Figure 5 Schematic diagram of the side of the composite piece formed by the elastic material on the inner side of the cup piece according to the embodiment of the present invention;

[0033] Figure 6 Schematic diagram of the side of the composite piece formed by the elastic material on the outer side of the cup piece according to the embodiment of the present invention;

[0034] Figure 7 Schematic diagram of the side of the composite piece formed by the elastic material on both the inner and outer sides of the cup piece according to the embodiment of the present invention;

[0035] Figure 8 Schematic diagram of the side of the composite piece formed by the elastic material covering the edge of the cup piece according to the embodiment of the present invention;

[0036] Figure 9 Schematic diagram of the side of the composite piece after the elastic material on the inner side of the cup piece is thermally deformed according to the embodiment of the present invention;

[0037] Figure 10 Schematic diagram of the side of the composite piece after the elastic material on the outer side of the cup piece is thermally deformed according to the embodiment of the present invention;

[0038] Figure 11 Schematic diagram of the side of the composite piece after the elastic material on both the inner and outer sides of the cup piece is thermally deformed according to the embodiment of the present invention;

[0039] Figure 12 Schematic diagram of the side of the composite piece after the elastic material covering the edge of the cup piece is thermally deformed according to the embodiment of the present invention;

[0040] Figure 13 Schematic diagram of the cup finished product formed by the composite piece according to the first embodiment of the present invention;

[0041] Figure 14 Schematic diagram of the state before the composite piece and the tension structure are combined according to the first embodiment of the present invention;

[0042] Figure 15 Schematic diagram of the state after the composite piece and the tension structure are combined according to the first embodiment of the present invention;

[0043] Figure 16 Schematic diagram of the side cross-section after the composite piece and the tension structure are combined according to the first embodiment of the present invention;

[0044] Figure 17 Schematic diagram of the finished bra of Scheme 1 according to the first embodiment of the present invention;

[0045] Figure 18 Schematic diagram of the finished bra of Solution 2 described in Embodiment 1 of the present invention;

[0046] Figure 19 Schematic diagram of the state before the cup cut piece is combined with the elastic material described in Embodiment 2 of the present invention;

[0047] Figure 20 Schematic diagram of the state after the cup cut piece is combined with the elastic material described in Embodiment 2 of the present invention;

[0048] Figure 21 Schematic diagram of the finished cup formed by the composite cut piece described in Embodiment 2 of the present invention;

[0049] Figure 22 Schematic diagram of the state before the composite cut piece is combined with the tension structure described in Embodiment 2 of the present invention;

[0050] Figure 23 Schematic diagram of the state after the composite cut piece is combined with the tension structure described in Embodiment 2 of the present invention;

[0051] Figure 24 Schematic diagram of the finished bra of Solution 1 described in Embodiment 2 of the present invention;

[0052] Figure 25 Schematic diagram of the finished bra of Solution 2 described in Embodiment 2 of the present invention;

[0053] Figure 26 Schematic diagram of the state before the cup cut piece is combined with the elastic material described in Embodiment 3 of the present invention;

[0054] Figure 27 Schematic diagram of the state after the cup cut piece is combined with the elastic material described in Embodiment 3 of the present invention;

[0055] Figure 28 Schematic diagram of the finished cup formed by the composite cut piece described in Embodiment 3 of the present invention;

[0056] Figure 29 Schematic diagram of the state before the composite cut piece is combined with the tension structure described in Embodiment 3 of the present invention;

[0057] Figure 30 Schematic diagram of the state after the composite cut piece is combined with the tension structure described in Embodiment 3 of the present invention;

[0058] Figure 31 Schematic diagram of the finished bra of Solution 1 described in Embodiment 3 of the present invention;

[0059] Figure 32 Schematic diagram of the finished bra of Solution 2 described in Embodiment 3 of the present invention.

[0060] Description of reference numerals:

[0061] 1-cup piece, 101-first edge, 102-second edge, 103-inner side of piece, 104-outer side of piece, 105-inner side of cup, 106-outer side of cup, 10-composite piece, 110-cup, 11-first composite piece, 12-second composite piece, 13-third composite piece, 2-elastic material, 201-inner side of elastic material, 202-outer side of elastic material, 203-top surface of elastic material, 21-first elastic material, 22-second elastic material, 3-first section line, 4-second section line, 5-finished cup product, 51-first cup product, 52-second cup product, 53-third cup product, 6-bra ratio, 61-back ratio, 62-side ratio, 63-back buckle, 7-tension structure, 8-semi-finished product, 81-first semi-finished product, 82-second semi-finished product, 83-third semi-finished product, 9-finished bra product, 91-first finished product, 92-second finished product, 93-third finished product. DETAILED DESCRIPTION

[0062] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0063] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0064] like Figure 1 As shown, the novel strapless bra comprises a finished cup 5 and a bra ratio portion 6, wherein the finished cup 5 is fixedly connected to the bra ratio portion 6, and a tension structure 7 is fixedly connected to the finished cup 5. The manufacturing process of the novel strapless bra comprises the following process steps:

[0065] S1: fixing the elastic material 2 on the edge of the cut cup piece 1 to form a composite piece 10;

[0066] S2: The composite panel 10 retracts under the action of the elastic material, and the inner side surface 103 of the panel in contact with the human body and the outer side surface 104 of the panel in contact with the clothing form an arc-shaped surface;

[0067] S3: placing the composite panel 10 into a mold for hot pressing to form a cup 110;

[0068] S4: Assemble and fix the two symmetrical cups 110 to form a finished cup product 5;

[0069] S5: The lower edge of the finished cup 5 is combined and fixed with the tension structure 7;

[0070] S6: Fixing the two sides of the finished cup 5 to the bra part 6;

[0071] S7: Fix both sides of the tension structure 7 and the bust part 6 of the bra into one body to form the finished bra 9.

[0072] Specifically, in the first embodiment, as Figures 2 to 13 shown, Figure 2 in, the cup piece 1 has a first edge 101. The first edge 101 is straight and is arranged on the outer side of the upper part of the cup, near the armpit of the human body. The first elastic material 21 is arranged at the first edge 101 of the cup piece 1. The length of the first elastic material 21 is less than the length of the first edge 101. Make a first section line 3 downward from the center of the first edge 101. The side view is as Figure 3 shown. Both the first elastic material 21 and the cup piece 1 are planar. The first elastic material 21 needs to be stretched to a certain length according to the operation process requirements. After being stretched, it generates elastic force. During the operation, control the elastic force and the stretching standard of the first elastic material 21 to ensure that the length of the first elastic material 21 is the same as that of the first edge 101 after being stretched according to the standard. At this time, the first elastic material 21 undergoes elastic deformation and generates tension, and then is fixed together with the edge part of the cup piece 1 by means of sewing, fitting, ultrasonic welding, etc. to form the first composite piece 11, as Figure 4 shown. At this time, the first elastic material 21 shrinks under the action of the tension and restores the elastic deformation. The first section line 3 on the first composite piece 11 becomes curved. The side view at this place is as Figures 5 to 8 shown.

[0073] Figure 5 in, after the first composite piece 11 shrinks, both the inner side surface 103 and the outer side surface 104 of the piece form arc-shaped curved surfaces. The center of the inner side surface 103 of the piece is on the same side as the center of the outer side surface 104 of the piece. The combination method of the first elastic material 21 and the cup piece 1 is that the first elastic material 21 is arranged at the upper part of the inner side surface 103 of the piece, and the top of the first elastic material 21 is flush with the top of the cup piece 1. The inner side surface 201 of the elastic material protrudes from the inner side surface 103 of the piece. Put the first composite piece 11 into the hot pressing mold. Since the inner side surface 103 of the piece is similar to the convex mold surface and the outer side surface 104 of the piece is similar to the concave mold surface, the first composite piece 11 plays a self-positioning role, with accurate positioning, avoiding pressing deviation and pressing error, and causing material waste. The mold is closed for hot pressing and forming to obtain the cup 110 as Figure 9 shown. The material between the inner side surface 105 and the outer side surface 106 of the cup flows under the extrusion of the hot pressing mold, with the thickness increasing in the middle and thinning at both ends. The curvature of the inner side surface 105 and the outer side surface 106 of the cup increases, conforming to the curve of the female breast. The first elastic material 21 is extruded and embedded in the cup piece 1 to form an integral structure. The inner side surface 201 of the elastic material and the inner side surface 105 of the cup form the same curved surface, realizing seamless connection. The formed integral structure does not produce protrusions and is comfortable to wear.

[0074] Figure 6In it, the combination method of the first elastic material 21 and the cup piece 1 in the first composite piece 11 is that the first elastic material 21 is arranged at the upper part of the outer side surface 104 of the piece, the top of the first elastic material 21 is flush with the top of the cup piece 1, and the outer side surface 202 of the elastic material protrudes from the outer side surface 104 of the piece. Put the first composite piece 11 into the hot pressing mold. Since the inner side surface 103 of the piece is similar to the convex die surface and the outer side surface 104 of the piece is similar to the concave die surface, the composite piece 10 plays a role of self-positioning, with accurate positioning. The mold is closed for hot pressing and forming to obtain as Figure 10 shown in the cup 110. The material between the inner side surface 105 and the outer side surface 106 of the cup flows, the thickness increases in the middle and thins at both ends, the curvature of the inner side surface 105 and the outer side surface 106 of the cup increases, conforming to the female breast curve. The first elastic material 21 is extruded and embedded in the cup piece 1 to form an integral structure. The outer side surface 202 of the elastic material and the outer side surface 106 of the cup form the same curved surface, realizing seamless connection.

[0075] Figure 7 In it, the combination method of the first elastic material 21 and the cup piece 1 in the first composite piece 11 is that the first elastic material 21 is arranged on the upper parts of the inner side surface 103 and the outer side surface 104 of the piece, the top of the first elastic material 21 is flush with the top of the cup piece 1, the inner side surface 201 of the elastic material protrudes from the inner side surface 103 of the piece, and the outer side surface 202 of the elastic material protrudes from the outer side surface 104 of the piece. Put the first composite piece 11 into the hot pressing mold and extrude to obtain as Figure 11 shown in the cup 110. The material between the inner side surface 105 and the outer side surface 106 of the cup flows, the thickness increases in the middle and thins at both ends, the curvature of the inner side surface 105 and the outer side surface 106 of the cup increases, conforming to the female breast curve. The first elastic material 21 is extruded and embedded in the cup piece 1 to form an integral structure. The inner side surface 201 of the elastic material and the inner side surface 105 of the cup form the same curved surface, and the outer side surface 202 of the elastic material and the outer side surface 106 of the cup form the same curved surface, realizing seamless connection. The first elastic material 21 is arranged on both the inner and outer sides of the cup piece 1, which can ensure that the composite piece 10 has greater elasticity, a greater degree of curvature of the curved surface after retraction, and can be matched with different colors.

[0076] Figure 8 In it, the first elastic material 21 in the first composite piece 11 is wrapped around the edge part of the cup piece 1, wrapping the inner side surface 103, the outer side surface 104 and the top of the piece. The top surface 203 of the elastic material covers the top of the cup piece 1, the inner side surface 201 of the elastic material protrudes from the inner side surface 103 of the piece, and the outer side surface 202 of the elastic material protrudes from the outer side surface 104 of the piece. Put the first composite piece 11 into the hot pressing mold and extrude to obtain as Figure 12For the cup 110 shown, the material between the inner side 105 and the outer side 106 of the cup flows, with the thickness increasing in the middle and thinning at both ends. The curvature of the inner side 105 and the outer side 106 of the cup increases to conform to the curve of a female breast. The first elastic material 21 is extruded and embedded in the cup piece 1 to form an integral structure. The inner side 201 of the elastic material and the inner side 105 of the cup form the same curved surface, and the outer side 202 of the elastic material and the outer side 106 of the cup form the same curved surface, achieving seamless connection. The first elastic material 21 wraps the edge of the cup piece 1, not only ensuring good elasticity and the degree of deformation of the composite piece 10, but also being more beautiful.

[0077] As Figure 13 shown, the hot-pressed cup 110 is further processed. Two symmetrical cups 110 are combined to obtain a qualified large-scale cup finished product 5, which is the first cup finished product 51. The first elastic material 21 is formed by processing at the first edge 101. The first elastic material 21 can be of a different color from the cup piece 1 and can be made into different patterns at the edge.

[0078] Figure 16 As shown, the tension structure 7 is formed of a material with a certain strength and elasticity, cut into strips or bands, with a simple shape and convenient cutting. The tension structure 7 is combined and fixed with the lower edge of the cup finished product 5 to obtain a semi-finished product 8. Figure 1 As shown, both sides of the tension structure 7 are fixed integrally with the cup part 6 of the bra. The lower edge of the tension structure 7 is flush with the lower edge of the cup part 6 of the bra and is fixed with the semi-finished product 8 to form a bra finished product 9.

[0079] As Figure 14 、 Figure 15 shown, the tension structure 7 is combined and fixed with the lower edge of the first cup finished product 51, and the tension structure 7 is fixed inside the first cup finished product 51 to obtain a first semi-finished product 81.

[0080] Furthermore, as Figure 17In the first solution shown, the two sides of the first semi-finished product 81 are connected to the cup part 6 of the bra. At the same time, the two sides of the tension structure 7 are fixed to the cup part 6 of the bra to form the first finished product 91. The first finished product 91 includes the first cup finished product 51, the cup part 6 of the bra, and the tension structure 7. The cup part 6 of the bra includes the side cup part 62, the back cup part 61, and the back clasp part 63. The side cup part 62, the back cup part 61, and the back clasp part 63 are symmetrically arranged. The two sides of the first cup finished product 51 are symmetrically connected to the side cup part 62. The side cup part 62 is connected to the back cup part 61. The back cup part 61 is connected to the back clasp part 63. The two end parts of the tension structure 7 are connected to the joint of the side cup part 62 and the back cup part 61. Since the back cup part 61 is located at the back of the human body, the tension structure 7 is only arranged at the position of the front chest of the human body, only playing a role in supporting and lifting the muscles of the breast. The muscles at the back are in a relaxed state, and it is comfortable and beautiful to wear.

[0081] As Figure 18 shown in the second solution, the first finished product 91 includes the first cup finished product 51, the cup part 6 of the bra, and the tension structure 7. The cup part 6 of the bra includes the back clasp part 63. The cup part 6 of the bra is symmetrically arranged. The two sides of the first cup finished product 51 are symmetrically connected to the cup part 6 of the bra. The back clasp parts 63 are symmetrically arranged at the ends of the cup part 6 of the bra. The two end parts of the tension structure 7 are connected to the back clasp parts 63. After the bra is worn, the tension structure 7 is located at the front chest and the back. In addition to playing a role in supporting and lifting the muscles of the breast, it can support the muscles at the back and prevent the chest and the back from deforming, and can play a role in body shaping.

[0082] In the second embodiment, as Figures 19 to 21 shown, Figure 19 in it, the second elastic material 22 is arranged at the second edge 102 of the cup cut piece 1. The second edge 102 is curved. The length of the second elastic material 22 is less than the arc length of the second edge 102. It is located inside the chest. A second section line 4 is made downward from the middle of the second edge 102. The side view is as Figure 2 shown. The second elastic material 22 and the cup cut piece 1 are both planar. The second elastic material 22 needs to be stretched to a certain length according to the operation process requirements, undergoes elastic deformation, and generates tension. When operating, control the elastic force and the stretched standard of the second elastic material 22 to ensure that the length of the second elastic material 22 is equal to the arc length of the second edge 102 after being stretched according to the standard. Then, it is fixed to the edge part of the cup cut piece 1 through sewing or fitting or ultrasonic welding and other methods to form the second composite cut piece 12, as Figure 20 shown. At this time, the second elastic material 22 shrinks under the action of the tension and restores the elastic deformation. The second section line 4 on the second composite cut piece 12 becomes curved. The side view at this place is as Figures 4 to 8 shown. Specifically, the combination part of the second elastic material 22 and the cup cut piece 1 is the same as that in the first embodiment, and the state after thermoforming is the same as that in the first embodiment.

[0083] Figure 21Among them, the thermoformed cup 110 is post-processed. Two symmetrical cups 110 are combined to obtain a qualified large-scale cup finished product 5, which is the second cup finished product 52. The second elastic material 22 is formed by processing at the second edge 102. The second elastic material 22 can adopt a color different from that of the cup cut piece 1, and different patterns can be made at the edge.

[0084] As Figure 22 , Figure 23 shown, the tension structure 7 is formed of a material with a certain strength and elasticity, cut into strips or bands, with a simple shape and convenient cutting. The tension structure 7 is combined and fixed with the lower edge of the cup finished product 5 to obtain a semi-finished product 8. In this embodiment, the tension structure 7 is combined and fixed with the lower edge of the second cup finished product 52, and the tension structure 7 is fixed inside the second cup finished product 52 to obtain a second semi-finished product 82. The two sides of the second semi-finished product 82 are connected to the bra side part 6. At the same time, the two sides of the tension structure 7 are fixed to the bra side part 6 as a whole, and the lower edge of the tension structure 7 is flush with the lower edge of the bra side part 6, forming a bra finished product 9.

[0085] Furthermore, as Figure 24 shown in Scheme 1, the second finished product 92 includes the second cup finished product 52, the bra side part 6, and the tension structure 7. The bra side part 6 includes the side ratio part 62, the back ratio part 61, and the back buckle part 63. The side ratio part 62, the back ratio part 61, and the back buckle part 63 are symmetrically arranged. The two sides of the second cup finished product 52 are symmetrically connected to the side ratio part 62. The side ratio part 62 is connected to the back ratio part 61, and the back ratio part 61 is connected to the back buckle part 63. The two ends of the tension structure 7 are connected at the joint of the side ratio part 62 and the back ratio part 61. Since the back ratio part 61 is at the back of the human body, the tension structure 7 is only arranged at the position in front of the human chest, only playing a role in supporting and lifting the muscles of the breast. The muscles at the back are in a relaxed state, and it is comfortable and beautiful to wear.

[0086] As Figure 25 shown in Scheme 2, the second finished product 92 includes the second cup finished product 52, the bra side part 6, and the tension structure 7. The bra side part 6 includes the back buckle part 63. The bra side part 6 is symmetrically arranged. The two sides of the second cup finished product 52 are symmetrically connected to the bra side part 6. The back buckle part 63 is symmetrically arranged at the ends of the bra side part 6. The two ends of the tension structure 7 are connected at the back buckle part 63. After the bra is worn, the tension structure 7 is located at the front chest and the back. In addition to playing a role in supporting and lifting the muscles of the breast, it can support the muscles at the back and prevent the chest and back from deforming, and can play a role in body shaping.

[0087] Embodiment 3, as Figures 26 to 28 shown, Figure 26In it, a first elastic material 21 is provided at the first edge 101 of the cup cut piece 1, and a second elastic material 22 is provided at the second edge 102. The length of the first elastic material 21 is less than the length of the first edge 101, and the length of the second elastic material 22 is less than the arc length of the second edge 102. A second section line 4 is made downward from the middle of the second edge 102. The side view is as shown in Figure 2 shown. The first elastic material 21, the second elastic material 22 and the cup cut piece 1 are all planar. The first elastic material 21 and the second elastic material 22 need to be stretched to a certain length according to the operation process requirements. During operation, the elastic forces of the first elastic material 21 and the second elastic material 22 and the stretched standard are controlled, and then they are fixed together with the edge part of the cup cut piece 1 by means of sewing, fitting or ultrasonic welding, etc. to form a third composite cut piece 13, as shown in Figure 27 shown. At this time, the elastic material 2 shrinks under the action of the pulling force, and the second section line 4 on the third composite cut piece 13 becomes a curve. The side view at this place is as shown in Figures 5 to 9 shown. Specifically, the combination parts of the first elastic material 21, the second elastic material 22 and the cup cut piece 1 are the same as those in the first embodiment, and the state after thermoforming is the same as that in the first embodiment.

[0088] Figure 28 In it, the thermoformed cup 110 is subjected to post-processing. Two symmetrical cups 110 are combined to obtain a qualified large-scale cup finished product 5. This finished product is the third cup finished product 53, which is formed by setting the first elastic material 21 at the first edge 101 and the second elastic material 22 at the second edge 102. The first elastic material 21 and the second elastic material 22 can adopt different colors from the cup cut piece 1, and different patterns can be made at the edges. At the same time, the first elastic material 21 and the second elastic material 22 can be the same material or different materials, and can adopt the same color or different colors, not limited to one combination form.

[0089] As shown in Figure 29 、 Figure 30 、 Figure 16 shown, the tension structure 7 is formed of a material with a certain strength and elasticity, cut into strips or bands, with a simple shape and convenient cutting. The tension structure 7 is combined and fixed with the lower edge of the cup finished product 5 to obtain a semi-finished product 8. In this embodiment, the tension structure 7 is combined and fixed with the lower edge of the third cup finished product 53, and the tension structure 7 is fixed on the inner side of the third cup finished product 53 to obtain a third semi-finished product 83. The two sides of the third semi-finished product 83 are connected to the bra cup part 6. At the same time, the two sides of the tension structure 7 are fixed to the bra cup part 6 as a whole, and the lower edge of the tension structure 7 is flush with the lower edge of the bra cup part 6, forming a bra finished product 9.

[0090] Furthermore, as shown in Figure 31In the first solution shown, the third finished product 93 includes the third cup finished product 53, the bra side section 6, and the tension structure 7. The bra side section 6 includes the side section 62, the back section 61, and the back clasp section 63. The side section 62, the back section 61, and the back clasp section 63 are symmetrically arranged. The two sides of the third cup finished product 53 are symmetrically connected to the side section 62. The side section 62 is connected to the back section 61, and the back section 61 is connected to the back clasp section 63. The two end parts of the tension structure 7 are connected to the joint of the side section 62 and the back section 61. Since the back section 61 is at the back of the human body, the tension structure 7 is only arranged at the position of the front chest of the human body, only playing a role in supporting and lifting the muscles of the breast. The muscles at the back are in a relaxed state, and it is comfortable and beautiful to wear.

[0091] As Figure 32 In the second solution shown, the third finished product 93 includes the third cup finished product 53, the bra side section 6, and the tension structure 7. The bra side section 6 includes the back clasp section 63. The bra side section 6 is symmetrically arranged. The two sides of the third cup finished product 53 are symmetrically connected to the bra side section 6. The back clasp section 63 is symmetrically arranged at the ends of the bra side section 6. The two end parts of the tension structure 7 are connected to the back clasp section 63. After the bra is worn, the tension structure 7 is located at the front chest and the back. In addition to playing a role in supporting and lifting the muscles of the breast, it can support the muscles at the back and prevent the chest and back from deforming, and can play a role in body shaping.

[0092] Furthermore, the fixing method of the elastic material 2 and the cup cut piece 1 is sewing or pasting or welding or fusing. The sewing method includes machine sewing, hand sewing, etc. Preferably, it is machine sewing. The welding method is preferably ultrasonic welding. The fusing method includes ultrasonic fusing. The fixing method of the elastic material 2 and the cup cut piece 1 is not limited to the above several, and can be realized by using ordinary production equipment and processes, without using special equipment or special processes, which is suitable for large-scale production in the workshop. The combination and fixing method of the tension structure 7 with the cup finished product 5 and the bra side section 6 is the same as the fixing method of the elastic material 2 and the cup cut piece 1.

[0093] Furthermore, the elastic material 2 includes one or more kinds, and the cup cut piece 1 includes one or more kinds. Setting multiple elastic materials 2 on the same cup cut piece 1 is beneficial for selecting multiple colors for matching, and making the cup have diverse shapes, which is more popular among beauty-loving women. While setting one elastic material 2 on the same cup cut piece 1 is simple and generous, meeting the needs of consumers who pursue simplicity. Setting multiple materials on the cup cut piece 1 can better play a role in supporting the chest and increasing the beauty of the chest. In short, the combination of the elastic material 2 and the cup cut piece 1 can meet the consumption needs of most women.

[0094] Furthermore, the elastic material 2 and the cup piece 1 or the tension structure 7 are combined in the same color or different colors. Using the same color can make the bra style simple, and the setting of multiple colors can embellish the bra cup, making the appearance of the bra more beautiful.

[0095] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A manufacturing process for a new type of strapless bra, the new type of strapless bra comprising a finished cup (5) and a bra band (6), the finished cup (5) being fixedly connected to the bra band (6), characterized in that, A tension structure (7) is fixedly connected to the finished cup (5). The production of the novel strapless bra includes the following technological steps: S1: Fix an elastic material (2) at the edge part of the cup cut piece (1) to form a composite cut piece (10); S2: The composite cut piece (10) shrinks under the action of the elastic material (2), and the inner side surface (103) of the cut piece in contact with the human body and the outer side surface (104) of the cut piece in contact with the clothing form an arc-shaped curved surface; S3: Place the composite cut piece (10) into a mold for hot pressing to form a cup (110); S4: Combine and fix two symmetrical cups (110) to form a finished cup (5); S5: Combine and fix it with the tension structure (7) at the lower edge of the finished cup (5); S6: Fix both sides of the finished cup (5) to the bra cup part (6); S7: Fix both sides of the tension structure (7) to the bra cup part (6) as a whole to form a finished bra (9); Among them, after step S3, the elastic material is extruded and embedded into the cup cut piece to form an integral structure, and the inner side surface (201) of the elastic material and the inner side surface of the cup form the same curved surface.

2. The manufacturing process of the novel strapless bra according to claim 1, characterized in that, The tension structure (7) connects the two cups (110).

3. The manufacturing process of the new strapless bra according to claim 1, characterized in that, The lower edge of the tension structure (7) is flush with the lower edge of the bra cup part (6).

4. The manufacturing process of the novel strapless bra according to claim 3, characterized in that, The tension structure (7) is strip-shaped or belt-shaped.

5. The manufacturing process of the novel strapless bra according to claim 3, characterized in that, The tension structure (7) is fixed to the inner side of the finished cup (5).

6. The manufacturing process of the new strapless bra according to claim 1, characterized in that, The fixing method of the elastic material (2) and the cup cut piece (1) is sewing or pasting or welding or fusing.

7. The manufacturing process of the novel strapless bra according to claim 1, characterized in that, The elastic material (2) includes one or more kinds, and the cup cut piece (1) includes one or more kinds.

8. The manufacturing process of the novel strapless bra according to claim 1, characterized in that, The edge part of the cup cut piece (1) is a partial edge or an overall edge.

9. The manufacturing process of the novel strapless bra according to claim 1, characterized in that, The elastic material (2) is fixed to the cup cut piece (1) after being stretched.

10. The manufacturing process of the novel strapless bra according to claim 1, characterized in that, The elastic material (2) and the cup cut piece (1) form an integral structure after hot pressing.

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