An absorbent structure for a sanitary tampon
Patent Information
- Application Number
- CN202521076060.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-28
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2035-05-28
AI Technical Summary
[0004]本实用新型通过提供一种卫生棉条的吸收体结构，解决现有卫生棉条吸收效率低、舒适性差、易致敏等问题，提供一种高吸收、抑菌抗氧化且易于使用的吸收体结构
[0015]吸收体采用双V型剪裁，形成的吸收体中间厚(5-8mm)、两端薄(2-4mm)，展开呈双锥形，贴合人体曲线；材料配比上，粘胶纤维与海藻多糖纤维按1:9或9:1混合，总重1.5-4g，兼具吸收性与功能性；通过对透气孔设计：孔径0.5-2mm，孔间距3-8mm，贯穿里外提升透气性；以及包裹层采用12-20gsm聚丙烯亲水无纺布(SSS工艺)，确保结构稳定性。
Smart Images
Figure CN224892880U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of disposable feminine hygiene products, specifically relating to an absorbent structure for tampons. Background Technology
[0002] Traditional tampons typically use cylindrical or single-cone shaped absorbent cores, which suffer from uneven absorption, inconvenience in insertion, and poor breathability. They often rely on pure viscose or cotton fibers, lacking antibacterial and hypoallergenic properties, and can easily cause discomfort with prolonged use. The simple wrapping process (such as ordinary heat-pressed nonwoven fabric) makes the absorbent core prone to deformation or breakage.
[0003] Therefore, there is a need to develop an absorber with a highly adaptable structure and low cost. Utility Model Content
[0004] This invention provides an absorbent body structure for tampons that solves the problems of low absorption efficiency, poor comfort, and easy allergy caused by existing tampons, and provides a highly absorbent, antibacterial, antioxidant, and easy-to-use absorbent body structure.
[0005] To achieve the above objectives, the technical solution of this utility model is:
[0006] A sanitary tampon absorbent structure includes an absorbent core and a wrapping layer. The absorbent core is composed of a mixture of viscose fiber and seaweed polysaccharide fiber. The wrapping layer is wrapped around the absorbent core. The absorbent core is provided with several air pores. The absorbent core is thicker in the middle and thinner at both ends, and has a double V-shaped structure when unfolded.
[0007] Furthermore, the weight ratio of the viscose fiber to the seaweed polysaccharide fiber is 1:9 or 9:1, and the total amount added is 1.5g-4g.
[0008] Furthermore, the wrapping layer is made of polypropylene fiber hydrophilic spunbond nonwoven fabric, manufactured using the SSS process, with a basis weight of 12gsm-20gsm.
[0009] Furthermore, the vent holes extend through the inside and outside of the absorber.
[0010] Furthermore, the seaweed polysaccharide fibers are evenly distributed within the absorbent core.
[0011] Furthermore, the unfolded length of the double V-shaped structure is 50-80mm, the thickness in the middle is 5-8mm, and the thickness at both ends is 2-4mm.
[0012] Furthermore, the diameter of the absorber in the compressed state is 8-15 mm.
[0013] Furthermore, the diameter of the vent holes is 0.5-2mm, and the spacing between the holes is 3-8mm.
[0014] The beneficial effects of this utility model are:
[0015] The absorbent body is cut in a double V-shape, resulting in a thicker middle (5-8mm) and thinner ends (2-4mm), unfolding into a double cone shape that conforms to the curves of the human body. In terms of material ratio, viscose fiber and seaweed polysaccharide fiber are mixed in a ratio of 1:9 or 9:1, with a total weight of 1.5-4g, combining absorbency and functionality. The breathable pores are designed with a pore diameter of 0.5-2mm and a pore spacing of 3-8mm, which improves breathability both inside and out. The wrapping layer uses 12-20gsm polypropylene hydrophilic nonwoven fabric (SSS process) to ensure structural stability.
[0016] The sanitary napkin made with the absorbent structure of this invention has the effects of convenient use, improved function and optimized comfort. Attached Figure Description
[0017] Figure 1 : A three-dimensional structural diagram of the absorber of this utility model;
[0018] Figure 2 : A schematic diagram of the absorber of this utility model unfolded;
[0019] 1-Encapsulation layer, 2-Absorbent core, 3-Ventilation pores, 21-Double V-shaped structure. Detailed Implementation
[0020] 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.
[0021] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0022] See Figure 1 , Figure 2 A sanitary tampon absorbent structure includes a wrapping layer 1 and an absorbent core 2. The absorbent core is composed of a mixture of viscose fiber and seaweed polysaccharide fiber. The wrapping layer is wrapped around the absorbent core. The absorbent body is provided with several air vents 3. The absorbent body is thick in the middle and thin at both ends, and unfolds into a double V-shaped structure 21.
[0023] Furthermore, the weight ratio of the viscose fiber to the seaweed polysaccharide fiber is 1:9 or 9:1, and the total amount added is 1.5g-4g.
[0024] Furthermore, the wrapping layer is made of polypropylene fiber hydrophilic spunbond nonwoven fabric, manufactured using the SSS process, with a basis weight of 12gsm-20gsm.
[0025] Furthermore, the vent holes extend through the inside and outside of the absorber.
[0026] Furthermore, the seaweed polysaccharide fibers are evenly distributed within the absorbent core.
[0027] Furthermore, the unfolded length of the double V-shaped structure is 50-80mm, the thickness in the middle is 5-8mm, and the thickness at both ends is 2-4mm.
[0028] Furthermore, the diameter of the absorber in the compressed state is 8-15 mm.
[0029] Furthermore, the diameter of the vent holes is 0.5-2mm, and the spacing between the holes is 3-8mm.
[0030] Specific Example 1: Preparation of Standard Absorber
[0031] Material mixing:
[0032] Viscose fiber and seaweed polysaccharide fiber were mixed at a ratio of 1:9, with a total weight of 3g.
[0033] Molding process:
[0034] After combing the fibers, lay the web and mechanically compact it to a thickness of 6mm;
[0035] Laser drilling (1mm diameter, 5mm spacing), arranged vertically;
[0036] The V-shaped cut creates a double V-shaped structure (65mm unfolded).
[0037] Encapsulation layer treatment:
[0038] Wrapped with 15gsm polypropylene nonwoven fabric (SSS process) and heat-sealed at the edges;
[0039] The finished product has a compressed diameter of 10mm and is suitable for standard catheters.
[0040] Specific Implementation Example 2: High Absorption Variant
[0041] The fiber ratio has been adjusted to 9:1 (viscose: seaweed polysaccharide), with a total weight of 4g and the air pores increased to 2mm, making it suitable for nighttime use.
[0042] The tampons made with the absorbent structure of this embodiment were tested for effectiveness and showed the following results:
[0043] Absorption performance: The average absorption of 10g / L physiological saline is 8g (GB / T 43585-2023);
[0044] Antibacterial test: 99% inhibition rate against ATCC Staphylococcus aureus (GB / T 43585-2023);
[0045] Comfort test: 30 participants reported an insertion convenience rating of 4.8 / 5.
[0046] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. An absorbent structure for a tampon, characterized in that, It includes an absorbent core and a wrapping layer. The absorbent core is composed of a mixture of viscose fiber and seaweed polysaccharide fiber. The wrapping layer is wrapped around the absorbent core. The absorbent body is provided with several air pores. The absorbent body is thick in the middle and thin at both ends, and has a double V-shaped structure when unfolded.
2. The absorbent structure of the tampon according to claim 1, characterized in that, The wrapping layer is made of polypropylene fiber hydrophilic spunbond nonwoven fabric, manufactured using the SSS process, with a basis weight of 12gsm-20gsm.
3. The absorbent structure of the tampon according to claim 2, characterized in that, The vent holes extend through the inside and outside of the absorber.
4. The absorbent structure of the tampon according to claim 3, characterized in that, The seaweed polysaccharide fibers are evenly distributed in the absorbent core.
5. The absorbent structure of the tampon according to claim 4, characterized in that, The unfolded length of the double V-shaped structure is 50-80mm, the thickness in the middle is 5-8mm, and the thickness at both ends is 2-4mm.
6. The absorbent structure of the tampon according to claim 5, characterized in that, The diameter of the absorber under compressed conditions is 8-15 mm.
7. The absorbent structure of the tampon according to claim 1, characterized in that, The vent holes have a diameter of 0.5-2 mm and a spacing of 3-8 mm.