High-fluffiness non-woven fabric

Abstract

The utility model provides a high fluffy non-woven fabric, which comprises a base cloth (1) and a diversion channel (2), the base cloth (1) is composed of hydrophilic oil agent fibers, gaps among the hydrophilic oil agent fibers form the diversion channel (2) which enables liquid to flow in the horizontal direction and the vertical direction, and the diameter of the diversion channel (2) is 1-2mm. The high-fluffiness non-woven fabric has the advantages of being high in fluffiness, low in density, beneficial to improving the liquid infiltration speed and capable of effectively improving the flow guide effect of the flow guide layer.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of non - woven fabric, concretely relates to a high loft non - woven fabric. BACKGROUND

[0002] Non - woven fabric, also called nonwoven fabric, is a sheet, web or pad made of fibers arranged in a certain direction or randomly, and combined with each other through friction, cohesion or adhesion, or a combination of these methods. Non - woven fabric has the characteristics of moisture resistance, air permeability, flexibility, light weight, non - combustion, easy decomposition, non - toxicity, non - irritation, rich color, low price, recyclability, etc. It is widely used in the surface layer and the flow guiding layer structure of sanitary napkins and paper diapers.

[0003] The existing patent application (CN221450972U) discloses a disordered loft non - woven fabric, which comprises a water storage layer, the top of the water storage layer is hot - bonded with a water absorption layer, the top of the water absorption layer is hot - bonded with a water permeable layer, the top of the water permeable layer is fixedly connected with a non - woven fabric fine denier fiber layer, the bottom of the water storage layer is hot - bonded with a non - woven fabric coarse denier fiber layer, a plurality of compression resistant holes are formed in the non - woven fabric coarse denier fiber layer, first hot - bonded strips are arranged on the outer ends of the two sides of the water absorption layer, second hot - bonded strips are arranged on the outer ends of the two sides of the water permeable layer, third hot - bonded strips are arranged on the outer ends of the two sides of the water storage layer, the non - woven fabric fine denier fiber layer is formed by randomly arranging composite fibers, and the upper and lower two groups of hot - rolled and bonded composite fibers are formed.

[0004] The existing loft non - woven fabric has a complex structure and a complicated preparation method, and cannot achieve good flow guiding effect. SUMMARY

[0005] In order to solve the problem of flow guiding of the loft non - woven fabric, the utility model provides a high loft non - woven fabric, which has high loft and low density, is beneficial to improve the liquid infiltration speed, and effectively improves the flow guiding effect of the flow guiding layer.

[0006] The high loft non - woven fabric comprises a base cloth and a flow guiding channel, the base cloth is composed of hydrophilic oil agent fibers, the space between the hydrophilic oil agent fibers forms the flow guiding channel for the liquid to flow in the horizontal direction and the vertical direction, the diameter of the flow guiding channel can be adjusted by adjusting the tightness of the fibers, and the diameter of the flow guiding channel is 1-2mm.

[0007] As an optional mode, the hydrophilic oil agent fiber has a skin-core structure, which comprises a skin layer, a core layer arranged inside the skin layer, and a hydrophilic oil agent coated on the surface of the skin layer.

[0008] As an optional mode, the skin layer is a CO-PET fiber.

[0009] In a preferred embodiment of the high-loft nonwoven fabric described in this utility model, the core layer is coarse denier polyester fiber.

[0010] The high-loft nonwoven fabric described in this utility model, as a preferred embodiment, has a basis weight range of 30–80 g / m². 2 .

[0011] The high-loft nonwoven fabric described in this utility model, as a preferred embodiment, is made using hot air single-carding technology.

[0012] Compared to existing fluffy nonwoven fabrics, this invention uses hot air single carding technology to card CO-PET fibers and coarse denier polyester fibers in a mixed ratio to form a high-fluffy, low-density layer, which is beneficial for liquid penetration. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a high-loft nonwoven fabric according to the present invention;

[0014] Figure 2 This is a schematic diagram of the fibers of a high-loft nonwoven fabric according to this utility model.

[0015] Figure Labels

[0016] 1. Base fabric; 2. Drainage holes; 3. Sheet layer; 4. Core layer. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0018] Example 1

[0019] like Figures 1-2 As shown, a high-loft nonwoven fabric includes a base fabric 1 and flow channels 2. The base fabric 1 is composed of hydrophilic oil-repellent fibers, and the gaps between the hydrophilic oil-repellent fibers form flow channels 2, which allow liquid to flow in both horizontal and vertical directions. The diameter of the flow channels 2 is 1 mm. The hydrophilic oil-repellent fibers have a core-sheath structure, including a sheath layer 3, a core layer 4 disposed inside the sheath layer 3, and a hydrophilic oil-repellent coating on the surface of the sheath layer 3. The sheath layer 3 is CO-PET fiber, the core layer 4 is coarse denier polyester fiber, and the basis weight of the nonwoven fabric ranges from 30 g / m². 2 It is manufactured using hot air single combing technology.

[0020] When this product was tested with other products, the average penetration time of the high-loft nonwoven fabric was 0.66s, while that of the control sample 1 was 0.85s; the average moisture return of the high-loft nonwoven fabric was 0.074g, while that of the control sample 1 was 0.074g.

[0021] Example 2

[0022] like Figure 1 , 2 As shown, a high-loft nonwoven fabric includes a base fabric 1 and flow channels 2. The base fabric 1 is composed of hydrophilic oil-repellent fibers, and the gaps between the hydrophilic oil-repellent fibers form flow channels that allow liquid to flow in both horizontal and vertical directions. The diameter of the flow channels is 1-2 mm. The hydrophilic oil-repellent fibers have a core-sheath structure, including a sheath layer 3, a core layer 4 disposed inside the sheath layer 3, and a hydrophilic oil-repellent coating on the surface of the sheath layer 3. The sheath layer 3 is CO-PET fiber, and the core layer 4 is coarse denier polyester fiber. The basis weight range of the high-loft nonwoven fabric is 80 g / m². 2 It is manufactured using hot air single combing technology.

[0023] When this product was tested with other products, the average penetration time of the high-loft nonwoven fabric was 1.21s, while that of the control sample 2 was 1.43s; the average moisture return of the high-loft nonwoven fabric was 0.059g, while that of the control sample 2 was 0.073g.

[0024] The above description is illustrative only and not restrictive. Those skilled in the art will understand that any modifications, variations or equivalents that can be made without departing from the spirit and scope defined by the claims will fall within the protection scope of this utility model.

Claims

1. A high loft nonwoven fabric, characterized by: The application relates to a high-loft non-woven fabric, which comprises a base cloth (1) and a flow channel (2), wherein the base cloth (1) is composed of hydrophilic oil agent fibers, the interspaces among the hydrophilic oil agent fibers form the flow channel (2) for the liquid to flow in the horizontal direction and the vertical direction, and the diameter of the flow channel (2) is 1-2 mm.

2. The high loft nonwoven fabric according to claim 1, wherein: The hydrophilic oil agent fiber is in a skin-core structure, which comprises a skin layer (3), a core layer (4) arranged inside the skin layer (3) and hydrophilic oil agent coated on the surface of the skin layer (3).

3. The high loft nonwoven fabric according to claim 2, wherein: The skin layer (3) is a CO-PET fiber.

4. The high loft nonwoven fabric according to claim 2, wherein: The core layer (4) is a coarse-denier polyester fiber.

5. The high loft nonwoven fabric according to any one of claims 1 to 4, characterized in that: The high bulk nonwoven fabric has a weight per unit area ranging from 30 to 80 g / m 2 .

6. The high loft nonwoven fabric according to any one of claims 1 to 4, characterized in that: The high-loft non-woven fabric is made by adopting hot air single carding technology.

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