Hot melt adhesive mold laminating structure of seamless underpants

Abstract

The utility model discloses a hot melt adhesive mould laminating structure of seamless underpants, which comprises a front cloth piece and a hot melt adhesive module, the front cloth piece is connected with a rear cloth piece through a lower cloth piece, the left end and the right end of the front cloth piece are connected with the two ends of the rear cloth piece, and the hot melt adhesive module is used for bonding the front cloth piece, the lower cloth piece and the rear cloth piece. A plurality of convex circle reinforcing parts and concave strip reinforcing parts are arranged at the bonding parts of the front cloth block, the lower cloth block and the rear cloth block; after the front cloth piece, the rear cloth piece and the lower cloth piece are bonded through the first hot melt adhesive die strip and the second hot melt adhesive die strip, the reinforcing strips can reinforce the edges of the bonded parts, the edge warping problem is prevented, the viscous force of the bonded parts is improved again through cooperation of the convex circle reinforcing parts and the concave strip reinforcing parts, it is guaranteed that the bonded parts cannot be separated, and the bonded parts are not prone to damage after being worn and washed for many times; and the quality of the underpants is better.

Description

Technical Field

[0001] This utility model relates to the field of seamless underwear technology, specifically a hot melt adhesive molding bonding structure for seamless underwear. Background Technology

[0002] As underwear is worn close to the skin, comfort is of paramount importance. Conventional underwear is made by sewing the pant panels and crotch fabric together to form the main body of the underwear. Elastic webbing is then embedded in the waistband and sewn in place. Conventional underwear has many sewing connections, and the sewing threads at these seams come into contact with and rub against the skin. In addition, the waistband has many wrinkles, which makes it feel awkward and uncomfortable when worn.

[0003] To address the aforementioned issues, a seamless underwear solution (publication number CN212233107U) has been developed. This solution involves cutting pant pieces and crotch fabric to form the underwear body, thereby reducing the production cost of the underwear body. Combined with a hot-pressing adhesive process, the crotch fabric can be seamlessly fixed to the pant pieces, ensuring the comfort of the underwear.

[0004] However, the above method uses high-temperature extrusion to bond the trouser pieces together with adhesive film. After a period of use and multiple washes, the bonded edges will peel up. With further use and washing, the peeled edges of the trouser pieces will gradually separate, and the bonded trouser pieces are not durable. Utility Model Content

[0005] The purpose of this invention is to provide a hot melt adhesive bonding structure for seamless underwear to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a hot melt adhesive molding bonding structure for seamless underwear, comprising a front fabric block, wherein the front fabric block is connected to a rear fabric block via a lower fabric block, and the left and right ends of the front fabric block are connected to the two ends of the rear fabric block.

[0007] The hot melt adhesive module is used to bond the front, bottom, and back fabric pieces. The bonding joints of the front, bottom, and back fabric pieces are provided with several convex and concave reinforcing parts to form a stronger reinforcement area, ensuring that the bonding joints will not separate, making the underwear durable and washable.

[0008] Furthermore, elastic bands are connected to the upper ends of the front and back fabric pieces, and a pouch is connected to the middle of the front fabric piece. The pouch makes the underwear more comfortable to wear, and the elastic bands prevent the underwear from slipping down.

[0009] Furthermore, the hot melt adhesive module includes two first hot melt adhesive strips and two second hot melt adhesive strips. The first hot melt adhesive strips bond the front and back fabric pieces, and the first hot melt adhesive strips have reinforcing strips on both sides. The second hot melt adhesive strips bond the lower fabric piece to the front and back fabric pieces, and the second hot melt adhesive strips also have reinforcing strips on both sides. The reinforcing strips prevent the problem of edge curling, optimize the bonding structure, and improve the quality of the underwear.

[0010] Compared with the prior art, the beneficial effects of this utility model are: after the front fabric piece, back fabric piece, and bottom fabric piece are bonded together by the first hot melt adhesive strip and the second hot melt adhesive strip, the reinforcing strip can reinforce the edge of the bonded part to prevent the problem of curling. In conjunction with the convex round reinforcing part and the concave strip reinforcing part, the adhesion of the bonded part is further improved, ensuring that the bonded part will not separate. It is not easily damaged after multiple wears and washes, and the quality of the underwear is better. Attached Figure Description

[0011] Figure 1 This is a front view of the present invention;

[0012] Figure 2 This is a side view of the present invention after being folded in half;

[0013] Figure 3 This is a rearward perspective view of the present invention;

[0014] Figure 4 This is a structural diagram showing the disassembled parts of this utility model;

[0015] Figure 5 This is a schematic diagram of the bonding of the front and lower fabric pieces of this utility model.

[0016] Figure 6 This is a cross-sectional view of the connection between the front and rear fabric blocks of this utility model.

[0017] In the diagram: 1. Front fabric piece; 2. Back fabric piece; 3. Elastic band; 4. Pocket; 5. Lower fabric piece; 6. First hot melt adhesive strip; 7. Second hot melt adhesive strip; 8. Convex reinforcement; 9. Reinforcing strip; 10. Concave reinforcement. Detailed Implementation

[0018] 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.

[0019] Example:

[0020] Please see Figure 1-6This utility model provides a technical solution: a hot melt adhesive molding bonding structure for seamless underwear, including a front fabric block 1, the front fabric block 1 is connected to a rear fabric block 2 through a lower fabric block 5, and the left and right ends of the front fabric block 1 are connected to the two ends of the rear fabric block 2, the front fabric block 1, the rear fabric block 2, and the lower fabric block 5 are connected to form underwear.

[0021] A hot melt adhesive module is used to bond the front fabric piece 1, the lower fabric piece 5, and the rear fabric piece 2. The bonding joints of the front fabric piece 1, the lower fabric piece 5, and the rear fabric piece 2 are provided with several convex reinforcing parts 8 and concave reinforcing parts 10, such as... Figure 6 As shown, the convex reinforcing part 8 and the concave reinforcing part 10 are formed by high temperature extrusion, which ensures that the bonding is strengthened and the bond is not easy to separate.

[0022] Hot melt adhesive film, also known as hot melt double-sided tape, is an environmentally friendly adhesive that is not sticky at room temperature but becomes sticky on both sides at high temperatures. Unlike regular glue, hot melt adhesive film is solid and does not contain solvents, making it a colorless and odorless adhesive, thus more environmentally friendly. When the adhesive surface comes into direct contact with the skin, it will not cause allergic reactions, and it is widely used in various types of underwear and clothing.

[0023] In this embodiment, as Figure 1 As shown, the upper ends of the front fabric piece 1 and the back fabric piece 2 are connected with elastic bands 3, which prevents the underwear from slipping down when worn. The middle of the front fabric piece 1 is connected with a pouch 4, which improves the comfort of wearing underwear. The elastic band 3 and the pouch 4 are also bonded together by hot melt adhesive, eliminating the need for sewing.

[0024] In this embodiment, as Figure 4 , Figure 5 , Figure 6 As shown, the hot melt adhesive module includes two first hot melt adhesive strips 6 and two second hot melt adhesive strips 7. The first hot melt adhesive strips 6 bond the front fabric piece 1 and the rear fabric piece 2, and the first hot melt adhesive strips 6 are provided with reinforcing strips 9 on both sides. The second hot melt adhesive strips 7 bond the lower fabric piece 5 to the front fabric piece 1 and the rear fabric piece 2. The second hot melt adhesive strips 7 are also provided with reinforcing strips 9 on both sides. The edges of the first hot melt adhesive strips 6 and the second hot melt adhesive strips 7 are formed by hot pressing to prevent the possibility of curling and improve the bonding strength.

[0025] Specifically, in use, after the front fabric piece 1, back fabric piece 2, and bottom fabric piece 5 are cut, the second hot melt adhesive strip 7 is used to connect the bottom fabric piece 5 between the front fabric piece 1 and the back fabric piece 2. Then, the first hot melt adhesive strip 6 is used to connect the two ends of the front fabric piece 1 and the back fabric piece 2. Through high-temperature hot pressing, the first hot melt adhesive strip 6 and the second hot melt adhesive strip 7 successfully bond the front fabric piece 1, the back fabric piece 2, and the bottom fabric piece 5 into underwear. During hot pressing, convex reinforcing parts 8, reinforcing strips 9, and concave reinforcing parts 10 are formed, which improves the bonding strength of the front fabric piece 1, the back fabric piece 2, and the bottom fabric piece 5, and prevents curling and breaking during wearing and washing, resulting in high-quality underwear.

[0026] Although embodiments of the present invention 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 the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hot melt adhesive molding bonding structure for seamless underwear, characterized in that, include: The front fabric block (1) is connected to the rear fabric block (2) via the lower fabric block (5), and the left and right ends of the front fabric block (1) are connected to the two ends of the rear fabric block (2). A hot melt adhesive module is used to bond the front fabric block (1), the lower fabric block (5), and the rear fabric block (2). The bonding joints of the front fabric block (1), the lower fabric block (5), and the rear fabric block (2) are provided with a number of convex round reinforcement parts (8) and concave strip reinforcement parts (10).

2. The hot melt adhesive molding bonding structure for seamless underwear according to claim 1, characterized in that: The upper ends of the front fabric block (1) and the rear fabric block (2) are connected with elastic bands (3).

3. The hot melt adhesive molding bonding structure for seamless underwear according to claim 1, characterized in that: The front fabric piece (1) is connected to a pouch (4) in the middle.

4. The hot melt adhesive molding bonding structure for seamless underwear according to claim 1, characterized in that: The hot melt adhesive module includes two first hot melt adhesive strips (6) and two second hot melt adhesive strips (7).

5. The hot melt adhesive molding bonding structure for seamless underwear according to claim 4, characterized in that: The first hot melt adhesive strip (6) bonds the front fabric block (1) and the rear fabric block (2), and the first hot melt adhesive strip (6) is provided with reinforcing strips (9) on both sides. The second hot melt adhesive strip (7) bonds the lower fabric block (5) to the front fabric block (1) and the rear fabric block (2), and the second hot melt adhesive strip (7) is also provided with reinforcing strips (9) on both sides.

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