Arch dome type multidirectional shunting surface layer

Abstract

The utility model discloses an arch dome type multidirectional shunting surface layer, a surface layer main body comprises a flow guide layer and an absorption layer which are sequentially arranged from top to bottom along the thickness direction, the top end face of the flow guide layer is provided with an arch dome part which protrudes upwards, and the top end of the arch dome part is contacted with the surface of a human body when the arch dome type multidirectional shunting surface layer is used. An air flow channel is formed between every two adjacent arch portions, circulation of air between the human body surface layer and the surface layer main body is improved, the air permeability of the surface layer main body is improved, a plurality of flow guide sets are arranged around the outer edges of the arch portions, the hydrophilicity of the absorption layer is higher than that of the flow guide layers, and the air permeability of the surface layer main body is improved. The liquid is guided by the arch part to quickly diffuse towards four directions, so that local retention is avoided, the moist feeling is reduced, the liquid quickly permeates into the absorption layer, and efficient liquid absorption and spatial distribution are realized, so that the overall moisture absorption and liquid drainage efficiency is improved, and the surface layer is kept dry and comfortable.

Description

Technical Field

[0001] The utility model relates to the technical field of non-woven fabrics, in particular to an arch-shaped multi-directional diversion surface layer. Background Art

[0002] Non-woven fabrics are used in many fields because of their moisture-proof, breathable, flexible, lightweight, non-toxic and non-irritating, rich colors and low price. Diapers and other sanitary products usually use non-woven fabrics as the guide layer and are in contact with the skin. Therefore, the comfort, breathability, penetration and other indicators of the non-woven fabric guide layer directly affect the use effect and user experience of the diaper.

[0003] The existing non-woven fabrics on the surface of sanitary napkins or diapers have deficiencies in liquid absorption and distribution, which easily lead to a damp feeling during use and affect the user experience. Therefore, it is necessary to make improvements in the liquid absorption and liquid distribution of the surface layer to solve the above problems. Utility Model Content

[0004] In view of the technical defects existing in the background technology, the utility model proposes an arch-shaped multi-directional diversion surface layer, which solves the above technical problems and meets the actual needs. The specific technical solution is as follows:

[0005] A dome-shaped multi-directional diversion surface layer comprises a surface layer body, wherein the surface layer body comprises a guide layer and an absorption layer arranged in sequence from top to bottom along the thickness direction, an dome structure is arranged on the end face of the guide layer, and the dome structure is composed of a plurality of elliptical upwardly protruding dome portions and a pressing portion arranged around and in contact with the outer edge of the dome portions, the dome portions are arranged at equal intervals along the width direction of the end face of the guide layer, and the dome portions in two adjacent rows are arranged alternately, a plurality of guide groups are arranged around the outer edge of the dome portions, and the guide layer and the absorption layer are fixed by hot pressing through the pressing portion.

[0006] As an improvement of the above solution, the length direction of the arch dome is aligned with the length direction of the guide layer, the width direction of the arch dome is aligned with the width direction of the guide layer, and the guide layer is symmetrically provided with guide groups on both sides of the ends of the arch dome in the length direction.

[0007] As an improvement of the above solution, the guide layer is composed of one or two of PP fibers or PET fibers arranged irregularly, and the absorption layer is composed of one or two of EVA fibers or ES fibers arranged irregularly.

[0008] As an improvement of the above solution, the absorption layer is bonded to the bottom end surface of the guide layer, and a bonding structure is provided between the absorption layer and the guide layer at a position corresponding to the pressing portion, and the bonding structure is composed of the PP fiber and the ES fiber melt-bonded.

[0009] As an improvement of the above solution, the guide group is composed of three guide holes arranged in a straight line, and four guide groups are arranged around the arch dome. The guide groups are arranged in a diamond shape around the arch dome.

[0010] As an improvement of the above scheme, the guide hole is composed of an arc-shaped portion arranged in an arc shape near the upper end surface of the guide layer and a vertical portion passing through the thickness direction of the guide layer, one end of the arc-shaped portion is connected to the vertical portion, and the other end is connected to the upper end surface of the guide layer.

[0011] As an improvement of the above solution, the width dimension of the guide layer is not less than the width dimension of the absorption layer, the length dimension of the guide layer is not less than the length dimension of the absorption layer, and the thickness dimension of the absorption layer is not less than the thickness dimension of the guide layer.

[0012] As an improvement of the above solution, gaps are reserved between adjacent arch domes, and the guide groups are arranged in a cone-shaped staggered manner along the width direction of the guide layer at positions corresponding to the positions between two adjacent rows of arch domes.

[0013] The beneficial effect of the utility model is that: the top end face of the guide layer is provided with an upwardly protruding dome portion, and the top of the dome portion contacts the surface of the human body during use, giving the user a more comfortable touch, and an air flow channel is formed between two adjacent domes, which increases the air flowability between the human body surface and the surface layer body, and improves the air permeability of the surface layer body. The hydrophilicity of the absorption layer is stronger than that of the guide layer. The liquid quickly diffuses in all directions under the guidance of the dome portion, avoiding local retention and reducing the wet feeling. The liquid quickly penetrates into the absorption layer, achieving efficient liquid absorption and spatial distribution, thereby improving the overall moisture absorption and liquid discharge efficiency and keeping the surface layer dry. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the end surface structure of the surface layer main body of the utility model.

[0015] Figure 2 It is a schematic diagram of the structure of the surface layer body in the thickness direction of the utility model.

[0016] Figure 3 for Figure 1 A schematic diagram of the enlarged structure of part A.

[0017] Figure 4 for Figure 2 Schematic diagram of the enlarged structure of part B.

[0018] Among them: the surface layer body 1, the guide layer 2, the absorption layer 3, the arch structure 4, the arch part 5, the pressing part 6, the guide group 7, the guide hole 8, the arc part 801, and the vertical part 802. DETAILED DESCRIPTION

[0019] The implementation methods of the present invention are described below in conjunction with the accompanying drawings and relevant embodiments. The implementation methods of the present invention are not limited to the following embodiments, and the present invention involves relevant necessary components in this technical field, which should be regarded as common knowledge in this technical field and can be known and mastered by technical personnel in this technical field.

[0020] A dome-shaped multi-directional diversion surface layer comprises a surface layer body 1, wherein the surface layer body 1 comprises a guide layer 2 and an absorption layer 3 which are sequentially arranged from top to bottom along the thickness direction, an dome structure 4 is arranged on the end face of the guide layer 2, and the dome structure 4 is composed of a plurality of elliptical upwardly protruding dome portions 5 and a pressing portion 6 arranged around and in contact with the outer edge of the dome portion 5, the dome portions 5 are arranged at equal intervals along the width direction of the end face of the guide layer 2, and the dome portions 5 in two adjacent rows are staggered, a plurality of guide groups 7 are arranged around the outer edge of the dome portion 5, and the guide layer 2 and the absorption layer 3 are fixed by hot pressing through the pressing portion 6.

[0021] In the structure of the surface layer body 1 of the utility model, the surface layer body 1 is formed by a composite of a guide layer 2 and an absorption layer 3, the guide layer 2 and the absorption layer 3 are fixed by hot pressing at the position corresponding to the pressing part 6, the guide layer 2 is composed of one or two of PP fibers or PET fibers arranged irregularly, and the absorption layer 3 is composed of one or two of EVA fibers or ES fibers arranged irregularly. In terms of hydrophilicity, the hydrophilicity of the absorption layer 3 is better than that of the guide layer 2. Through the difference in hydrophilicity between the absorption layer 3 and the guide layer 2, the liquid can quickly pass through the guide holes 8 or the fiber gaps of the guide layer 2 under the guidance of the absorption layer 3, thereby achieving efficient liquid absorption and spatial distribution, thereby improving the overall moisture absorption and liquid discharge efficiency, and keeping the surface layer dry;

[0022] Furthermore, in the above scheme, the absorption layer 3 is bonded to the bottom end surface of the guide layer 2, and a bonding structure is provided between the absorption layer 3 and the guide layer 2 at a position corresponding to the pressing portion 6, and the bonding structure is composed of the PP fiber and the ES fiber melt-bonded together, wherein the ES fiber is a two-component skin-core structure composite fiber, the skin layer is PE, and the core layer is PP fiber or PET fiber, and during compounding, the PP fiber in the guide layer 2 and the ES fiber in the absorption layer 3 are partially melt-bonded to form a fixation, thereby forming the pressing portion 6.

[0023] In the structure of the guide layer 2 of the utility model, the end surface of the guide layer 2 is provided with a plurality of arched domes 5, and the outer edge of the arched domes 5 is provided with a guide group 7, which is staggered between two adjacent rows of arched domes 5, and the arched domes 5 are elliptical and convex upwards. Compared with the circular convex structure, the elliptical convex structure can reduce the contact area between the surface material and the skin, improve the dryness, and the convex curvature of the ellipse is larger than that of the circular convex curvature, which can make the liquid flow faster to the surroundings and accelerate the liquid absorption speed;

[0024] Furthermore, in the above scheme, the length direction of the arch dome 5 is aligned with the length direction of the guide layer 2, and the width direction of the arch dome 5 is aligned with the width direction of the guide layer 2. The guide layer 2 is symmetrically provided with guide groups 7 on both sides of the ends corresponding to the length direction of the arch dome 5. The guide group 7 is composed of 3 guide holes 8 arranged in a straight line. Four guide groups 7 are arranged around the arch dome 5, and the guide groups 7 are arranged in a diamond shape around the ends of the arch dome 5 in the length direction.

[0025] It should be noted that the guide layer 2 forms an upwardly protruding dome portion 5 and a press-fit portion 6 surrounding the dome portion 5 by hot pressing at a position corresponding to the press-fit portion 6. When in use, the top of the dome portion 5 contacts the surface of the human body, and the gap between two adjacent domes 5 forms a guide channel. When liquid absorption is not performed, the guide channel has the effect of enhancing air permeability. When liquid absorption is performed, the liquid moves along the dome portion 5 into the guide channel. The guide groups 7 on the end surface of the guide layer 2 are connected to form staggered guide channels, which facilitates rapid liquid diversion along the length direction of the guide layer 2 to avoid the situation where the local liquid pressure is high.

[0026] Furthermore, in the above scheme, the guide group 7 is provided at the position corresponding to the position between the two adjacent arched domes 5, and the guide group 7 is composed of 3 guide holes 8, and the guide hole 8 is composed of an arc-shaped arc portion 801 arranged near the upper end surface of the guide layer 2 and a vertical portion 802 passing through the thickness direction of the guide layer 2. One end of the arc-shaped portion 801 is connected to the vertical portion 802, and the other end is connected to the upper end surface of the guide layer 2. When the liquid flows along the guide channel, it quickly penetrates toward the absorption layer 3 when passing through the guide hole 8. The arc-shaped portion 801 provides a faster penetration speed for the liquid when it penetrates along the guide hole 8, so that the moisture can penetrate quickly and be evenly distributed.

[0027] Furthermore, in the above scheme, the width dimension of the guide layer 2 is not less than the width dimension of the absorption layer 3, the length dimension of the guide layer 2 is not less than the length dimension of the absorption layer 3, and the thickness dimension of the absorption layer 3 is not less than the thickness dimension of the guide layer 2.

[0028] Furthermore, in the above solution, gaps are reserved between adjacent arched domes 5 , and the guide groups 7 are arranged in a cone-shaped staggered manner along the width direction of the guide layer 2 at positions corresponding to the positions between two adjacent rows of arched domes 5 .

[0029] The above is only a preferred embodiment of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A dome-shaped multi-directional flow-dividing surface layer, characterized in that: The invention comprises a surface layer body (1), wherein the surface layer body (1) comprises a guide layer (2) and an absorption layer (3) which are arranged in sequence from top to bottom along the thickness direction; an arch structure (4) is provided on the end surface of the guide layer (2); the arch structure (4) is composed of a plurality of elliptical upwardly protruding arch portions (5) and a pressing portion (6) arranged around the outer edge of the arch portion (5); the arch portions (5) are arranged at equal intervals along the width direction of the end surface of the guide layer (2), and the arch portions (5) in two adjacent rows are arranged in a staggered manner; a plurality of guide groups (7) are arranged around the outer edge of the arch portion (5); and the guide layer (2) and the absorption layer (3) are fixed by hot pressing via the pressing portion (6).

2. The dome-shaped multi-directional flow-dividing surface layer according to claim 1, characterized in that: The length direction of the arched dome (5) is aligned with the length direction of the guide layer (2), the width direction of the arched dome (5) is aligned with the width direction of the guide layer (2), and guide groups (7) are symmetrically provided on both sides of the end of the guide layer (2) corresponding to the length direction of the arched dome (5).

3. The dome-shaped multi-directional flow-dividing surface layer according to claim 1, characterized in that: The guide layer (2) is composed of one or both of PP fibers or PET fibers arranged irregularly, and the absorption layer (3) is composed of one or both of EVA fibers or ES fibers arranged irregularly.

4. The dome-shaped multi-directional flow-dividing surface layer according to claim 3 is characterized in that: The absorption layer (3) is bonded to the bottom end surface of the guide layer (2), and a bonding structure is provided between the absorption layer (3) and the guide layer (2) at a position corresponding to the pressing portion (6), wherein the bonding structure is formed by melt-bonding the PP fiber and the ES fiber.

5. The dome-shaped multi-directional flow-dividing surface layer according to claim 1, characterized in that: The flow guide group (7) is composed of three flow guide holes (8) arranged in a straight line, and four flow guide groups (7) are arranged around the arch dome (5). The flow guide groups (7) are arranged in a diamond shape around the arch dome (5).

6. The dome-shaped multi-directional flow-dividing surface layer according to claim 5, characterized in that: The guide hole (8) is composed of an arc-shaped portion (801) arranged near the upper end surface of the guide layer (2) and having an arc shape, and a vertical portion (802) penetrating along the thickness direction of the guide layer (2); one end of the arc-shaped portion (801) is connected to the vertical portion (802), and the other end is connected to the upper end surface of the guide layer (2).

7. The dome-shaped multi-directional flow-dividing surface layer according to claim 1, characterized in that: The width dimension of the guide layer (2) is not less than the width dimension of the absorption layer (3), the length dimension of the guide layer (2) is not less than the length dimension of the absorption layer (3), and the thickness dimension of the absorption layer (3) is not less than the thickness dimension of the guide layer (2).

8. The dome-shaped multi-directional flow-dividing surface layer according to claim 1, characterized in that: Gaps are reserved between adjacent arched domes (5), and the guide groups (7) are arranged in a cone-shaped staggered manner along the width direction of the guide layer (2) at positions corresponding to the positions between two adjacent rows of arched domes (5).

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