Dry and breathable perforated non-woven fabric

Abstract

The utility model provides a dry breathable perforated non-woven fabric which comprises a base fabric, a breathable area arranged on the base fabric and a liquid infiltration area arranged on the base fabric and located on the periphery of the breathable area, the infiltration area and the breathable area are of an island structure, the height of the breathable area is smaller than that of the base fabric, and the liquid infiltration area is located on the periphery of the breathable area. The breathable area accounts for 55-70% of the surface area of the base cloth; the breathable area comprises a boundary line connected with the liquid infiltration area and a liquid guide face connected with the boundary line, the liquid guide face and the liquid infiltration area form an angle of 60-80 degrees, and a liquid guide channel is formed by the liquid guide face and the liquid infiltration area. A single carding process is adopted, 100% 2D weak-affinity fibers are laid, and the fabric is fine and fluffy; cationic oil is added into the fiber, so that the fiber has a long-acting antibacterial effect; a punching process is added on the basis of the original flat grain surface layer, so that the material is more breathable, the infiltration speed is increased, the back infiltration amount is reduced, the residual quantity of liquid on the surface of the non-woven fabric is reduced, the non-woven fabric has strong liquid absorption capacity, and the breathability and the dryness are improved due to dense holes; and the gram weight range of the non-woven fabric is 18-40g / m

Description

Technical Field

[0001] This utility model relates to the field of nonwoven fabric technology, specifically to a dry, breathable, perforated nonwoven fabric. Background Technology

[0002] Non-woven fabric, also known as non-woven cloth or non-woven material, is a sheet, web, or pad made of fibers arranged in a directional or random manner, bonded together through friction, cohesion, or adhesion, or a combination of these methods. Non-woven fabrics are characterized by moisture resistance, breathability, flexibility, light weight, non-flammability, easy decomposition, non-toxicity, non-irritation, rich colors, low price, and recyclability. They are widely used in the surface layer structure of sanitary napkins and diapers.

[0003] Existing patent application (CN215535669U) discloses an absorbent nonwoven fabric and a dry, antibacterial bamboo fiber sanitary napkin, comprising a skin-friendly surface layer, a diversion layer, an absorbent layer, and a bottom layer sequentially laminated together. The skin-friendly surface layer is a blended spunlace nonwoven fabric composed of at least unbleached bamboo fiber, chitosan fiber, and polylactic acid fiber. This dry, antibacterial bamboo fiber sanitary napkin exhibits excellent antibacterial properties, dryness, and skin-friendliness.

[0004] With changing modern lifestyles, more and more people are paying attention to the overall quality of disposable hygiene products, including comfort, cleanliness, and performance. They demand that the fabrics be natural and non-irritating, soft to the touch, keep the surface dry, and quickly absorb liquids to reduce bacterial growth. Summary of the Invention

[0005] To address the aforementioned issues, this invention provides a dry and breathable perforated nonwoven fabric. The upper layer is dry and skin-friendly, while the lower layer is fluffy and easily diffuses, effectively reducing the friction of the surface layer on the skin, while increasing the absorption rate and reducing the amount of reabsorption.

[0006] This utility model provides a dry and breathable perforated nonwoven fabric, including a base fabric, a breathable area disposed on the base fabric, and a liquid infiltration area disposed on the base fabric around the breathable area. The infiltration area and the breathable area have an island structure. The height of the breathable area is less than that of the base fabric, and the breathable area occupies 55-70% of the surface area of ​​the base fabric.

[0007] The permeable zone includes a boundary line connected to the liquid infiltration zone and a liquid-guiding surface connected to the boundary line and tangent to the liquid infiltration zone at an angle of 60 to 80 degrees. The liquid-guiding surface and the liquid infiltration zone form a liquid-guiding channel.

[0008] In a preferred embodiment of the dry and breathable perforated nonwoven fabric described in this utility model, the breathable area consists of round holes arranged in a regular and continuous dot matrix.

[0009] The present invention discloses a dry and breathable perforated nonwoven fabric, which, as a preferred embodiment, is composed of cationic oil-based fibers. The cationic oil-based fibers have a core-sheath structure, including a sheath layer, a core layer disposed inside the sheath layer, and a cationic oil-based coating on the surface of the sheath layer.

[0010] The dry and breathable perforated nonwoven fabric of this utility model, as a preferred embodiment, has a basis weight range of 18–40 g / m². 2 .

[0011] The dry and breathable perforated nonwoven fabric described in this utility model, as a preferred embodiment, is made using a single carding process.

[0012] Compared to existing absorbent nonwoven fabrics, this invention adds a perforation process to the original plain weave surface layer. The semi-streamlined round holes make it easier for liquid to flow to the bottom layer, reducing backflow. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the cross-sectional structure of a dry and breathable perforated nonwoven fabric according to the present invention.

[0014] Figure 2 This is a schematic diagram of the fibers of a dry and breathable perforated nonwoven fabric according to this utility model.

[0015] Figure 3 This is a physical image of a dry, breathable, perforated nonwoven fabric according to this utility model.

[0016] Figure Labels

[0017] 1. Base fabric; 2. Breathable zone; 21. Boundary line; 22. Liquid guiding surface; 3. Liquid infiltration zone; 4. Skin layer; 5. Core layer. Detailed Implementation

[0018] 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.

[0019] Example 1

[0020] like Figures 1-2 As shown, a dry and breathable perforated nonwoven fabric includes a base fabric 1 and circular holes 2. The base fabric 1 is made of 2D weakly adhesive fibers, and the surface of the base fabric 1 has a regular and continuous array of circular holes 2. The cross-section of the circular holes 2 is semi-streamlined, and the height of the circular holes 2 is less than that of the base fabric 1. The circular holes 2 occupy 55% of the surface area of ​​the base fabric 1. The fibers are treated with cationic oil agents, which have a long-lasting antibacterial effect. The basis weight of the nonwoven fabric is 18 g / m². 2 The dry and breathable perforated nonwoven fabric is made using a single carding process.

[0021] When this product was tested with other products, the penetration time of the dry and breathable perforated nonwoven fabric was 1.01s, while that of the control sample 1 was 1.27s; the moisture return of the dry and breathable perforated nonwoven fabric was 0.050g, while that of the control sample 1 was 0.061g.

[0022] Example 2

[0023] like Figures 1-2 As shown, a dry and breathable perforated nonwoven fabric includes a base fabric 1 and circular holes 2. The base fabric 1 is made of 2D weakly adhesive fibers, and the surface of the base fabric 1 has a regular and continuous array of circular holes 2. The cross-section of the circular holes 2 is semi-streamlined, and the height of the circular holes 2 is less than that of the base fabric 1. The circular holes 2 occupy 70% of the surface area of ​​the base fabric 1. The fibers are treated with cationic oil agents, which have a long-lasting antibacterial effect. The basis weight of the nonwoven fabric is 40 g / m². 2 The dry and breathable perforated nonwoven fabric is made using a single carding process.

[0024] When this product was tested with other products, the penetration time of the dry and breathable perforated nonwoven fabric was 0.83s, while that of the control sample 2 was 1.25s; the moisture return of the dry and breathable perforated nonwoven fabric was 0.053g, while that of the control sample 2 was 0.077g.

[0025] 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 dry, breathable, perforated nonwoven fabric, characterized in that: It includes a base fabric (1), a breathable zone (2) disposed on the base fabric (1), and a liquid infiltration zone (3) disposed on the base fabric (1) around the breathable zone (2). The infiltration zone (3) and the breathable zone (2) are island structures. The height of the breathable zone (2) is less than the height of the base fabric (1). The breathable zone (2) occupies 55-70% of the surface area of ​​the base fabric (1). The permeable zone (2) includes a boundary line (21) connected to the liquid infiltration zone (3) and a liquid guiding surface (22) connected to the boundary line (21) and forming a liquid guiding channel with the liquid infiltration zone (3) at an angle of 60 to 80 degrees. The liquid guiding surface (22) and the liquid infiltration zone (3) form a liquid guiding channel.

2. The dry and breathable perforated nonwoven fabric according to claim 1, characterized in that: The breathable area (2) consists of circular holes arranged in a regular and continuous dot matrix.

3. The dry and breathable perforated nonwoven fabric according to claim 1, characterized in that: The dry and breathable perforated nonwoven fabric is composed of cationic oil-based fibers. The cationic oil-based fibers have a core-sheath structure, including a sheath (4), a core layer (5) disposed inside the sheath (4), and a cationic oil-based coating on the surface of the sheath (4).

4. The dry and breathable perforated nonwoven fabric according to claim 1, characterized in that: The dry, breathable, perforated nonwoven fabric has a basis weight range of 18–40 g / m². 2 .

5. The dry and breathable perforated nonwoven fabric according to claim 1, characterized in that: The dry and breathable perforated nonwoven fabric is made using a single carding process.

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