一种一体成型吸收材料及卫生巾

Abstract

本实用新型公开了一种一体成型吸收材料及卫生巾，所述一体成型吸收材料包括表层、导流层和芯体，所述表层、所述导流层和所述芯体自上而下依次设置，所述表层、所述导流层和所述芯体均以纤维为基体并经开松梳理后形成纤维网，所述表层、所述导流层和所述芯体的相邻两层之间的纤维通过水刺、针刺或气刺物理缠结形成无胶粘合的一体结构；所述卫生巾包括所述一体成型吸收材料以及复合于所述芯体底部的底膜。本实用新型能够简化生产工艺，减少涂胶成本，减少胶体中有害物质的挥发而刺激人体皮肤，而且，各层纤维直接缠结形成毛细通道，大大提高液体的渗透速度。

Claims

1. An integrally formed absorbent material, characterized by, It includes a surface layer (1), a flow guiding layer (2), and a core (3). The surface layer (1), the flow guiding layer (2), and the core (3) are arranged sequentially from top to bottom. The surface layer (1), the flow guiding layer (2), and the core (3) are all made of fiber as the matrix and formed into a fiber web after being opened and combed. The fibers between adjacent layers of the surface layer (1), the flow guiding layer (2), and the core (3) are physically entangled by hydroentangling, needle punching, or air punching to form an integral structure without glue.

2. The integrally formed absorbent material of claim 1, wherein, The fibers between adjacent layers of the surface layer (1), the flow guiding layer (2), and the core (3) are hydroentangled to form an integral structure.

3. The integrally formed absorbent material of claim 1, wherein, The surface layer (1) includes at least one of cotton fiber, viscose fiber, bamboo fiber, lyocell fiber, hemp fiber, silk fiber, PLA fiber, and ES fiber, and the basis weight of the surface layer (1) is 10-35 gsm.

4. The integrally formed absorbent material of claim 1, wherein, The surface layer (1) has a plain weave or jacquard mesh pattern.

5. The integrally formed absorbent material of claim 1, wherein, The flow guiding layer (2) includes an upper flow guiding layer (21) and a lower flow guiding layer (22); The upper guide layer (21) includes at least one of PP fiber, PET fiber, ES fiber, cotton fiber, viscose fiber, bamboo fiber, and lyocell fiber, and the basis weight of the upper guide layer (21) is 15-40 gsm. The lower guide layer (22) includes at least one of cotton fiber, viscose fiber, bamboo fiber, and lyocell fiber, and the basis weight of the lower guide layer (22) is 10-35 gsm.

6. The integrally formed absorbent material of claim 5, wherein, The lower guide layer (22) is formed by a straight-lay mesh method to create a plain or jacquard mesh pattern.

7. The integrally molded absorbent material according to claim 1, characterized in that, The core (3) includes at least one of cotton fiber, viscose fiber, bamboo fiber, and lyocell fiber, and the weight of the core (3) is 120-250 gsm.

8. The integrally formed absorbent material of claim 1, wherein, The core (3) is formed with a flat weave pattern by a straight-lay mesh method.

9. The integrally formed absorbent material of claim 1, wherein, The core (3) includes a fluffy layer (31) and a dense layer (32) arranged from top to bottom. The porosity of the fluffy layer (31) is higher than that of the dense layer (32). The fibers between the fluffy layer (31) and the dense layer (32) are physically entangled by hydroentanglement, needle punching or air punching to form an integral structure.

10. A sanitary napkin characterized by Includes the integrally molded absorbent material as described in any one of claims 1-9 and the bottom film (4) composited at the bottom of the core (3).

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