An undergarment

Abstract

The utility model provides a kind of underpants, including the underpants body has crotch, cotton inner pad is equipped on the inner side of this crotch, or the crotch is only one layer of cotton cloth, and the four peripheral edges or a pair of symmetrical edges of the inner pad or cotton cloth are covered with reinforced cloth strip of chemical fibre cloth material, and the four peripheral edges of the reinforced cloth strip and inner pad are combined together with the crotch of the underpants body by heat fusion or ultrasonic welding.It makes the product not easy to separate during use or cleaning, and durable.Only the edge of inner pad is combined together with the crotch of the underpants by reinforced cloth strip, so that the non-peripheral part of inner pad and the chemical fibre cloth of crotch are separated, without glue, which is beneficial to ventilation, and further beneficial to dry and comfortable inner pad, and further beneficial to hygiene, and improve the comfort of users using underpants.

Description

Technical Field

[0001] This utility model relates to a pair of underwear. Background Technology

[0002] Existing underwear, such as Figure 1-2 The underwear includes a main body 1, which has a longitudinal direction and a transverse direction perpendicular to the longitudinal direction. Longitudinally, with the crotch area as the center, an abdominal area and a back area are formed at the front and back, respectively. The main body includes an outer covering layer 2 and an absorbent core (i.e., an inner lining 3), with the absorbent core adhesively attached to the inside of the outer covering layer. Heat-pressed seams 5 are provided at the two side edges of the abdominal area and the two side edges of the back area.

[0003] In the aforementioned prior art, the inner liner is adhesively attached to the inside of the outer covering layer. During washing (especially hand washing), the inner liner and the outer covering layer can easily detach from each other. Utility Model Content

[0004] The present invention aims to provide underwear with an inner lining that is not easily slipped off.

[0005] To achieve the above objectives, the technical solution of this utility model is specifically implemented as follows:

[0006] This utility model provides an underwear, including an underwear body made of synthetic fiber fabric. The underwear body has a crotch area, and a cotton or non-pure cotton inner lining is provided on the inner side of the crotch area. A reinforcing strip of synthetic fiber fabric is covered on the four periphery or a pair of symmetrical edges of the inner lining. The reinforcing strip, the edge of the inner lining, and the crotch area of ​​the underwear body are joined together by heat fusion or ultrasonic welding.

[0007] A preferred embodiment is that, during the heat fusion or ultrasonic welding process, the reinforcing strip and the synthetic fiber at the opposite location of the crotch melt, and the synthetic fiber solution penetrates bidirectionally into the fabric layer on the edge of the inner lining and fuses together. After cooling and solidification, the reinforcing strip, the edge of the inner lining, and the underwear body are bonded together.

[0008] A preferred embodiment is that the inner lining comprises at least one layer of cotton fabric, and the underwear body and reinforcing strips are made of elastic fabric.

[0009] A preferred embodiment is that the reinforcing strip is formed by a single cut and is in a closed loop, or the reinforcing strip comprises a pair of strips symmetrically arranged on both sides of the inner lining.

[0010] A preferred embodiment is that, upon completion of the thermal fusion or ultrasonic welding, a fusion line is formed along the inner edge of the inner liner. This fusion line is formed by hot melt points spaced 2-5 mm apart, with a diameter of 1-3 mm, to improve product comfort.

[0011] The method for producing the underwear includes: first, covering the edge of the inner lining with a pre-cut reinforcing strip; then, placing the inner lining on the main synthetic fiber fabric in a continuously conveyed state; then, combining the reinforcing strip, the inner lining, and the main synthetic fiber fabric by heat fusion or ultrasonic welding; then, cutting the main synthetic fiber fabric to obtain an hourglass-shaped underwear unit; folding the underwear unit in half so that the abdominal and back areas of the underwear are aligned and overlapped to form a waist overlap; and joining the outer edges of the waist overlap together by heat fusion or ultrasonic welding. The finished underwear is then folded and packaged individually. Preferably, when the heat fusion or ultrasonic welding is completed, a fusion line is formed along the inner side of the front and rear edges of the cotton fabric 6. This fusion line is formed by multiple heat fusion points spaced 2-5 mm apart, with a diameter of 1-3 mm, to improve product comfort.

[0012] This utility model provides another type of underwear, including an abdominal area and a back area made of synthetic fiber fabric. The bottom edges of the abdominal area and the back area are connected by a crotch. The crotch is a layer of pure cotton or non-pure cotton fabric. At least the front and back edges of the cotton fabric are covered with reinforcing strips of synthetic fiber fabric. The reinforcing strips include at least front and back reinforcing strips. The front reinforcing strip, the front edge of the cotton fabric, and the bottom edge of the abdominal area are stacked together by heat fusion or ultrasonic welding. The back reinforcing strip, the rear edge of the cotton fabric, and the bottom edge of the back area are stacked together by heat fusion or ultrasonic welding.

[0013] The crotch area is made of a layer of cotton fabric, which is more breathable and comfortable, helps to keep the crotch area dry and hygienic, and also saves fabric.

[0014] A preferred embodiment is that, during the thermal fusion or ultrasonic welding process, the synthetic fibers of the front reinforcing strip and the bottom edge of the abdominal region melt, and the synthetic fiber solution penetrates bidirectionally into the gaps between the cotton fibers at the front edge of the cotton fabric and fuses together, then solidifies after cooling; simultaneously, the synthetic fibers of the rear reinforcing strip and the bottom edge of the back region melt, and the synthetic fiber solution penetrates bidirectionally into the gaps between the cotton fibers at the rear edge of the cotton fabric and fuses together, then solidifies after cooling; thereby, the front and rear edges of the cotton fabric are bonded to the abdominal region and the back region, respectively.

[0015] A preferred embodiment is that the abdominal area, back area, and reinforcing strip are made of elastic fabric.

[0016] The method for producing the underwear includes: first, placing three independent pieces of fabric corresponding to the abdominal area, cotton fabric, and back area on a continuously conveying conveyor belt, and then cutting them; wherein, the two ends of the cotton fabric are respectively overlapped above the bottom edges of the abdominal area and the back area; then, the cut reinforcing strips are covered on the front and rear edges of the cotton fabric, and the reinforcing strips, cotton fabric, abdominal area, and back area are combined by heat fusion or ultrasonic welding to obtain an hourglass-shaped underwear unit; the underwear unit is folded in half so that the abdominal area and back area of ​​the underwear are aligned and overlapped to form a waist overlap; one outer edge of the waist overlap is joined together by heat fusion or ultrasonic welding to form the underwear.

[0017] The beneficial effects of this utility model are as follows: (1) Compared with the glue bonding method of the prior art, the edge of the inner pad of the underwear of this utility model is joined to the crotch of the underwear by heat fusion or ultrasonic welding through reinforcing strips, so that the three form a strong heat fusion line, the effect is similar to sewing, so the inner pad is not easy to detach during use or washing, and it is durable. (2) In this utility model, only the edge of the cotton cloth or inner pad is joined to the crotch of the underwear by reinforcing strips, so that the non-peripheral part of the inner pad is separated from the chemical fiber cloth of the crotch and is glue-free, which is conducive to breathability, thus conducive to the dryness of the inner pad, thus conducive to hygiene, and improves the comfort of the user's underwear. (3) In this utility model, if only one pair of symmetrical edges of the inner lining are covered with reinforcing strips, the other pair of symmetrical edges of the inner lining are not combined with the reinforcing strips and the crotch of the underwear, which further facilitates breathability and makes it convenient for users to insert sheets or drugs with super absorbent polymer materials between the inner lining and the crotch fabric of the underwear, thus enriching the product functions. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments 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.

[0019] Figure 1 A 3D view of existing underwear;

[0020] Figure 2 for Figure 1 A schematic diagram of the unfolded shape;

[0021] Figure 3 This is a three-dimensional view of the underwear in Example 1;

[0022] Figure 4 for Figure 3 A schematic diagram of the unfolded shape;

[0023] Figure 5 For along Figure 4 A schematic diagram of the cross-sectional structure of the longitudinal center line of the underwear body;

[0024] Figure 6 for Figure 3 Another schematic diagram of the unfolded structure;

[0025] Figure 7 This is a schematic diagram of the unfolded structure of the underwear in Example 2;

[0026] Figure 8 for Figure 7 A schematic diagram of the exploded structure of underwear.

[0027] In the picture: 1. Underwear body; 2. Outer covering layer; 3. Inner lining; 4. Reinforcing strip; 5. Heat-pressed seam. Detailed Implementation

[0028] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. Example

[0029] See Figure 3-6 This utility model provides an underwear body 1 made of synthetic fiber fabric. The underwear body 1 has a crotch area 1-1, and a cotton or non-pure cotton inner lining 3 is provided on the inner side of the crotch area 1-1. The inner lining 3 has a perimeter edge (e.g., Figure 4 ) or a pair of symmetrical edges (such as Figure 6 The upper part is covered with a reinforcing strip 4 made of synthetic fiber fabric. The edge of the reinforcing strip 4 and the inner lining pad 3 are joined to the crotch area 1-1 of the underwear body 1 by heat fusion or ultrasonic welding to form a fusion line distributed along the inner edge of the inner lining pad. The fusion line is formed by multiple heat fusion points distributed at intervals of 2-5mm, and the diameter of the heat fusion points is 1-3mm, in order to improve the comfort of the product.

[0030] During the heat fusion or ultrasonic welding process, the reinforcing strip 4 and the chemical fibers at the opposite positions of the crotch 1-1 melt synchronously. The chemical fiber solution penetrates into the fabric layer at the edge of the inner lining pad 3 in both directions and fuses together. After cooling and solidification, the reinforcing strip 4, the edge of the inner lining pad 3 and the crotch 1-1 of the underwear body 1 are bonded together.

[0031] The inner lining 3 includes at least one layer of cotton fabric, and the underwear body 1 and reinforcing strip 4 are made of elastic fabric to make the product elastic, with high wrapping and comfort.

[0032] The reinforcing strip 4 is formed by a single cut and is in a closed loop (e.g., ...). Figure 4 ), or the reinforcing strip 4 includes a pair of strips of fabric symmetrically arranged on both sides of the inner lining (such as Figure 6 ).

[0033] The method for producing the underwear includes: first, covering the edge of the inner lining with a pre-cut reinforcing strip; then, placing the inner lining on the main synthetic fiber fabric in a continuously conveyed state; then, combining the reinforcing strip, the inner lining, and the main synthetic fiber fabric by heat fusion or ultrasonic welding; then, cutting the main synthetic fiber fabric to obtain an hourglass-shaped underwear unit; folding the underwear unit in half so that the abdominal area 1-3 and the back area 1-2 of the underwear are aligned and overlapped to form a waist overlap; and then joining the outer edges of the waist overlap together by heat fusion or ultrasonic welding to form a heat-sealed line 5. Finally, the formed underwear is folded and packaged into individual small packages. Example

[0034] like Figure 7-8 An underwear 1 includes an abdominal area 1-3 and a back area 1-2 made of synthetic fiber fabric. The bottom edges of the abdominal area 1-3 and the back area 1-2 are connected by a crotch area 1-1. The crotch area 1-1 is a layer of pure cotton or non-pure cotton fabric 6. At least the front and back edges of the cotton fabric 6 are covered with reinforcing strips 4 made of synthetic fiber fabric. The reinforcing strips 4 include at least front and back reinforcing strips. The front reinforcing strip, the front edge of the cotton fabric 6, and the bottom edge of the abdominal area 1-3 are joined together by heat fusion or ultrasonic welding. The back reinforcing strip, the rear edge of the cotton fabric 6, and the bottom edge of the back area 1-2 are joined together by heat fusion or ultrasonic welding to form fusion lines distributed along the inner sides of the front and rear edges of the cotton fabric 6. The fusion lines are formed by multiple heat fusion points distributed at intervals of 2-5 mm, with a diameter of 1-3 mm, to improve the comfort of the product.

[0035] During the heat fusion or ultrasonic welding process, the synthetic fibers of the front reinforcing strip and the bottom edge of the abdominal region melt, and the synthetic fiber solution penetrates bidirectionally into the gaps between the cotton fibers at the front edge of the cotton fabric 6 and fuses together, then solidifies after cooling; simultaneously, the synthetic fibers of the rear reinforcing strip and the bottom edge of the back region melt, and the synthetic fiber solution penetrates bidirectionally into the gaps between the cotton fibers at the rear edge of the cotton fabric and fuses together, then solidifies after cooling; thereby, the front and rear edges of the cotton fabric are bonded to the abdominal region and the back region 1-2, respectively.

[0036] The abdominal regions 1-3, back regions 1-2, and reinforcing strips are made of elastic fabric.

[0037] The method for producing the underwear includes: first, placing three independent pieces of fabric corresponding to the abdominal area, cotton fabric, and back area on a continuously conveying conveyor belt, and then cutting them; wherein, the two ends of the cotton fabric are respectively overlapped above the bottom edges of the abdominal area and the back area; then, the cut reinforcing strips are covered on the front and rear edges of the cotton fabric, and the reinforcing strips, cotton fabric, abdominal area, and back area are combined by heat fusion or ultrasonic welding to obtain an hourglass-shaped underwear unit; the underwear unit is folded in half so that the abdominal area and back area of ​​the underwear are aligned and overlapped to form a waist overlap; one outer edge of the waist overlap is joined together by heat fusion or ultrasonic welding to form the underwear.

[0038] The above are merely embodiments of this application and are not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A type of underwear, comprising an underwear body made of synthetic fiber fabric, the underwear body having a crotch area, and an inner lining of cotton or non-cotton material provided on the inner side of the crotch area, characterized in that, The four perimeters or a pair of symmetrical edges of the inner lining are covered with reinforcing strips of synthetic fiber fabric. The reinforcing strips, the edges of the inner lining, and the crotch of the underwear body are joined together by heat fusion or ultrasonic welding.

2. The underwear according to claim 1, characterized in that, The inner lining includes at least one layer of cotton fabric, and the underwear body and reinforcing strips are made of elastic fabric.

3. The underwear according to claim 1 or 2, characterized in that, The reinforcing strip is formed by a single cut and is in a closed loop, or the reinforcing strip comprises a pair of strips symmetrically arranged on both sides of the inner lining.

4. The underwear according to claim 1 or 2, characterized in that, When the thermal fusion or ultrasonic welding is completed, a fusion line is formed along the inner edge of the inner liner. The fusion line is formed by multiple hot melt points spaced 2-5 mm apart, and the diameter of the hot melt points is 1-3 mm.

5. A pair of underwear comprising an abdominal area and a back area made of synthetic fiber fabric, wherein the bottom edges of the abdominal area and the back area are connected by a crotch area, characterized in that, The crotch area is a layer of pure cotton or non-pure cotton fabric, and at least the front and back edges of the cotton fabric are covered with reinforcing strips of chemical fiber fabric. The reinforcing strips include at least front and back reinforcing strips. The front reinforcing strip, the front edge of the cotton fabric, and the bottom edge of the abdominal area are stacked together by heat fusion or ultrasonic welding. The back reinforcing strip, the rear edge of the cotton fabric, and the bottom edge of the back area are stacked together by heat fusion or ultrasonic welding.

6. The underwear according to claim 5, characterized in that, The abdominal area, back area, and reinforcing strips are made of elastic fabric.

7. The underwear according to claim 5 or 6, characterized in that, When the heat fusion or ultrasonic welding is completed, a fusion line is formed along the inner side of the front and rear edges of the cotton fabric; the fusion line is formed by multiple heat fusion points distributed at intervals of 2-5 mm, and the diameter of the heat fusion points is 1-3 mm.

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