absorbent fabric with cotton elastic waistband

Abstract

This utility model discloses an absorbent product with a cotton-containing elastic waistband, comprising a waistband body and an absorbent core. The waistband body includes, from the inside out, an inner waistband, an elastic layer, and an outer waistband that are sequentially bonded together. The inner waistband includes a skin-contact layer and a chemical fiber layer. The skin-contact layer is a pure cotton fiber layer, and the chemical fiber layer is disposed on the side of the inner waistband close to the elastic layer. The absorbent core is bonded to the skin-contact layer. The two ends of the waistband body are side-sealed and pressed together by ultrasonic waves or hot rolling. In this application, the waistband body has good elasticity, and the skin-contact layer is a pure cotton fiber layer, which has good skin-friendliness, breathability, and moisture absorption properties. Furthermore, the waistband body can be side-sealed and pressed together using ultrasonic waves.

Description

Technical Field

[0001] This utility model relates to the field of absorbent products technology, and in particular to absorbent products with cotton-containing elastic waistbands. Background Technology

[0002] Traditional absorbent products often use elastic waistbands made of a composite of non-woven synthetic fiber fabric and elastic band, or elastic plastic film, or synthetic fiber elastic fabric. Due to the poor breathability and moisture absorption of synthetic fiber materials, they can feel stuffy and uncomfortable in hot weather or during the day.

[0003] Most absorbent waistbands on the market are made of water-repellent materials. Water-repellent materials cannot absorb sweat secreted by the body or wick away moisture and dissipate heat when they are applied to the skin, which can cause discomfort after wearing them for a long time. In addition, although there are cotton waistbands on the market, their side closures are mostly sealed with synthetic fiber fabric, which can also cause discomfort when in contact with the skin.

[0004] In view of this, the purpose of this utility model is to provide a new technical solution to solve the existing technical problems. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology, this utility model provides an absorbent product with a cotton elastic waistband, which solves the problems of poor moisture absorption and breathability and poor comfort of existing absorbent products waistbands.

[0006] The technical solution adopted by this utility model to solve its technical problem is:

[0007] An absorbent product with a cotton elastic waistband includes a waistband body and an absorbent core. The waistband body includes, from the inside out, an inner waistband, an elastic layer, and an outer waistband that are sequentially bonded together. The inner waistband includes a skin-contact layer and a chemical fiber layer. The skin-contact layer is a pure cotton fiber layer. The chemical fiber layer is disposed on the side of the inner waistband close to the elastic layer. The absorbent core is bonded to the skin-contact layer. The two ends of the waistband body are sealed together by ultrasonic or hot rolling.

[0008] In the above structure, the skin-adhesive layer and the chemical fiber layer are composited by hydroentanglement.

[0009] In the above structure, the chemical fiber layer is a PP or ES fiber layer.

[0010] In the above structure, the elastic layer is a rubber band, elastic fabric, elastic film, or spandex filament.

[0011] In the above structure, the elastic layer is spandex yarn, and the spandex yarn is arranged longitudinally to form the elastic layer.

[0012] In the above structure, the elastic layer and the inner waistband are bonded together by hydroentangling.

[0013] In the above structure, the elastic layer is a rubber band, and the elastic layer is connected to the inner waistband by hot melt adhesive or ultrasonic waves.

[0014] In the above structure, the cotton fiber content of the inner waistband is ≤70%.

[0015] In the above structure, the absorbent core and the skin-adhesive layer are bonded together by spray adhesive; the outer waistband and the elastic layer are bonded together by spray adhesive.

[0016] The beneficial effects of this utility model are as follows: The absorbent product provided by this utility model has an outer waistband, an elastic layer, and an inner waistband. The elastic layer provides overall elasticity to the waistband. The skin-contact layer of the inner waistband is a pure cotton fiber layer, which has good skin-friendliness, moisture absorption, and breathability, which helps to ensure the comfort of the absorbent product. The elastic layer makes the waistband have good elasticity and enhances its fit to the skin. By adjusting the ratio of cotton fibers to chemical fibers in the inner waistband, the waistband can be side-sealed and online bonded by ultrasonic waves or hot rolling. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a cross-sectional schematic diagram of the present invention.

[0020] Figure reference numerals: 103, waist body; 1, outer waist; 2, elastic layer; 21, spandex filament; 3, inner waist; 31, skin-contact layer; 32, chemical fiber layer; 4, absorbent core. Detailed Implementation

[0021] The following is in conjunction with the appendix Figure 1-2 The present invention will be further described below.

[0022] The following will clearly and completely describe the concept, specific structure, and technical effects of this utility model in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the scope of protection of this utility model. Furthermore, all connections / linkages involved in the patent do not simply refer to direct contact between components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. The various technical features in this utility model can be combined interactively without contradicting each other.

[0023] Reference Figures 1 to 2 This utility model provides an absorbent product with a cotton-based elastic waistband, comprising a waistband body 103 and an absorbent core 4. The waistband body 103, from the inside out, includes an inner waistband 3, an elastic layer 2, and an outer waistband 1, sequentially bonded together. The inner waistband 3 is positioned on the side in contact with the user's skin, and the elastic layer 2 is the main source of elasticity for the waistband body 103. The inner waistband 3 includes a skin-contact layer 31 and a chemical fiber layer 32. The skin-contact layer 31, which is made of pure cotton, is in direct contact with the user's skin. The chemical fiber layer 32 is bonded to the skin-contact layer 31 to form the inner waistband 3. The elastic layer 2 and the chemical fiber layer 32 are bonded together on the side opposite to the skin-contact layer 31. The outer waistband 1 and the elastic layer 2 are bonded together on the side opposite to the inner waistband 3. The absorbent core 4 is bonded to the skin-contact layer 31. This utility model relates to absorbent products such as overnight pants, disposable underwear, baby pull-up pants, and adult pull-up pants.

[0024] In this embodiment, the absorbent core 4 is bonded to the skin-adhesive layer 31. The inner waistband 3 is cut short, meaning that a small portion of both ends of the absorbent core 4 is bonded to the skin-adhesive layer 31.

[0025] The two ends of the waistband body 103 are sealed and pressed together by ultrasonic or hot rolling. The ultrasonic pressing technology achieves bonding by generating heat through physical friction and melting the material's own components. It does not require the use of glue or solvents, avoids chemical residues, and the thickness of the molten area is close to that of the material itself, resulting in a smooth feel. This avoids the hard edges that rub against the skin caused by traditional hot pressing or gluing, which helps to improve the comfort of using the elastic waistband.

[0026] In this application, the skin-contact layer 31 of the inner waistband 3 is set as a pure cotton fiber layer. The porous structure of cotton fibers can promote air circulation, improve breathability, avoid the stuffiness caused by prolonged wrapping in the waist area, and reduce the skin being in a humid and hot environment. In addition, cotton fibers have good moisture absorption, which can quickly absorb the sweat of the skin around the waist, reduce stickiness, and improve wearing comfort. Furthermore, the surface of cotton fibers is smooth and the texture is soft, with low friction when in contact with the skin, which can effectively prevent skin redness or abrasion caused by friction.

[0027] Furthermore, the skin-adhesive layer 31 and the chemical fiber layer 32 are hydroentangled to form the inner waistband 3. The inner waistband 3 is formed by combining the skin-adhesive layer 31 and the chemical fiber layer 32. The skin-adhesive layer 31 is in contact with the user's skin, ensuring user comfort. The properties of the chemical fiber allow the inner waistband 3 to be bonded online via ultrasonic or thermal rolling side sealing. In other embodiments, the skin-adhesive layer 31 and the chemical fiber layer 32 can also be bonded together with adhesive.

[0028] Because cotton fibers are poor conductors of heat and electricity, with extremely low thermal conductivity and short fibers, they are not easy to heat-press or ultrasonically seal, or the strength after heat-pressing or ultrasonic sealing does not meet the usage requirements. The waistband body 103 of this application forms an inner waistband 3 with a composite structure by hydroentangling a cotton skin-contact layer 31 and a chemical fiber layer 32. It can be side-sealed by ultrasonic or heat-pressing through the characteristics of the chemical fiber layer 32. In the inner waistband 3 formed by hydroentangling, the cotton fibers of the skin-contact layer 31 and the fibers of the chemical fiber layer 32 are intertwined and bonded together. The fiber layers are firmly bonded, and the tensile strength and abrasion resistance are better than ordinary bonding processes. It is not easy to delaminate or break, and it can meet the requirements of ultrasonic or heat-pressing side sealing. In this embodiment, the side sealing strength is not less than 10N.

[0029] Furthermore, the chemical fiber layer 32 is a PP or ES fiber layer.

[0030] Furthermore, the elastic layer 2 is made of elastic band, elastic fabric, elastic film, or spandex filament 21. The elasticity of the elastic layer 2 is set to transverse elasticity or 360° elasticity (i.e., isotropic elasticity). It should be noted that the longitudinal or transverse directions mentioned in this article refer to the longitudinal or transverse directions on the product.

[0031] Reference Figure 1 and Figure 2 In one embodiment, the elastic layer 2 is made of spandex filament 21, and the spandex filament 21 is arranged longitudinally and hydroentangled with the skin-contact layer 31 to form the inner waistband 3. This arrangement makes the elasticity of the waistband body 103 mainly lateral; the lateral elasticity allows the waistband body 103 to be easily put on and taken off like ordinary underwear by lateral stretching, and at the same time, it returns to its original shape after rebounding, ensuring a close fit without loosening, a secure fit, and that it is not easy to loosen during exercise.

[0032] Reference Figure 1 and Figure 2 In one embodiment, the elastic layer 2 is set as an elastic fabric, which is made of elastic fibers. Since the elastic fibers are randomly distributed during the formation of the elastic fabric, the elastic fabric has elasticity in all directions (i.e., 360° elasticity). Therefore, the waist body 103 formed by the elastic layer 2 has elasticity in all directions, which can conform to the curve of the human body and effectively ensure the adaptability of the waist body 103 during dynamic activities.

[0033] In actual production, when the elastic layer 2 is set as spandex filament 21, the composite of the elastic layer 2 and the inner waistband 3 can be achieved by online hydroentangling of the spandex filament 21 of the elastic layer 2 with the cotton fibers and chemical fibers of the inner waistband 3, or by adding spandex filament 21 offline or online to the cotton fiber and chemical fiber composite cotton-containing substrate of the inner waistband 3; alternatively, the spandex filament 21 can be implanted into the inner waistband 3 through a warp knitting machine. When the elastic layer 2 is set as elastic fabric, it can be achieved by hydroentangling the cotton substrate of the skin-adhesive layer 31 offline or online; alternatively, the elastic fabric can be placed on a hydroentangling machine and hydroentangled in a stretched state to form the inner waistband 3. When the elastic layer 2 is set as elastic band, the elastic layer 2 and the inner waistband 3 can be bonded together by hot melt adhesive or ultrasonic bonding. Here, "online" in this article refers to synchronous completion on a continuous production line, while "offline" refers to integration after distributed processing.

[0034] Furthermore, the outer waistband 1 can be configured as a spunlace composite structure of a cotton fiber layer and a chemical fiber layer 32 (i.e., the same structure as the inner waistband 3), or it can be configured as an elastic chemical fiber layer 32. The cotton fiber content in the cotton-containing substrate of the waistband body 103 is ≤70%, just as the cotton fiber content in the inner waistband 3 is ≤70%. Controlling the proportion of cotton fibers in the inner waistband 3 further ensures the ultrasonic or hot-pressing strength of each substrate layer of the cotton waistband body 103. Setting the outer waistband 1 as a composite structure of a cotton fiber layer and a chemical fiber layer 32 can further improve the breathability and moisture absorption of the waistband body 103.

[0035] Furthermore, the outer waistband 1, elastic layer 2, and inner waistband 3 are bonded together by spray adhesive or by ultrasonic bonding.

[0036] Furthermore, in this embodiment, the absorbent core 4 and the skin-adhesive layer 31 are bonded together by spray adhesive. Additionally, the specific structure and working principle of the absorbent core 4 can be found in existing technology and will not be described in detail here.

[0037] In this embodiment, the production process of the absorbent product with a cotton elastic waistband is as follows:

[0038] S1. Cotton fibers and spandex filaments 21 are combed into two layers of fiber web, and then reinforced by hydroentangling with a hydroentangling head to form an inner waistband 3.

[0039] S2. Spray adhesive onto the elastic layer 2 and then bond the adhesive-coated elastic layer 2 to the elastic layer 2 of the inner waistband 3.

[0040] S3. Apply adhesive to the outer waist circumference 1 and then bond it to one side of the elastic band of the material obtained in S2;

[0041] S4. After applying adhesive to the absorbent core 4, it is laminated to the crotch area of ​​the waist body 103 of the skin-adhesive layer 31 of the material obtained in S3.

[0042] S5. Perform O-cutting on the material obtained in S4 to form the leg circumference;

[0043] S6. Fold the material obtained in S5 in half at the center and perform ultrasonic side sealing on the online waist body 103 to obtain the absorbent product;

[0044] S7. Fold the absorbent product into the packaging film.

[0045] The above is a detailed description of the preferred embodiments of the present utility model. However, the present utility model is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. An absorbent article having a cotton-containing elastic waistband, characterized by: The device includes a waistband body and an absorbent core. The waistband body comprises, from the inside out, an inner waistband, an elastic layer, and an outer waistband that are sequentially attached. The inner waistband includes a skin-contact layer and a chemical fiber layer. The skin-contact layer is a pure cotton fiber layer. The chemical fiber layer is disposed on the side of the inner waistband that is close to the elastic layer. The absorbent core is bonded to the skin-contact layer. The two ends of the waistband body are sealed and pressed together by ultrasonic waves or hot rolling.

2. An absorbent article having a cotton-containing elastic waistband according to claim 1, characterized in that: The skin-adhesive layer and the chemical fiber layer are bonded together by hydroentanglement.

3. The absorbent article with a cotton-containing elastic waistband according to claim 2, characterized in that: The chemical fiber layer is a PP or ES fiber layer.

4. An absorbent article having a cotton-containing elastic waistband according to claim 1, characterized in that: The elastic layer is made of rubber bands, elastic fabric, elastic film, or spandex filaments.

5. An absorbent article having a cotton-containing elastic waistband according to claim 4, characterized in that: The elastic layer is made of spandex yarn, which is arranged longitudinally to form the elastic layer.

6. An absorbent article having a cotton-containing elastic waistband according to claim 4, characterized in that: The elastic layer and the inner waistband are bonded together by hydroentangling.

7. The absorbent article with a cotton-containing elastic waistband according to claim 4, characterized in that: The elastic layer is made of rubber band, and the elastic layer is connected to the inner waistband by hot melt adhesive or ultrasonic waves.

8. An absorbent article having a cotton-containing elastic waistband according to claim 1 characterized in that: The cotton fiber content of the inner waistband is ≤70%.

9. An absorbent article having a cotton-containing elastic waistband according to claim 1 characterized in that: The absorbent core is bonded to the skin-adhesive layer by spray adhesive; the outer waistband is bonded to the elastic layer by spray adhesive.

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