Fluffy surface layer structure for absorption product
By designing the fluffy area and the anti-side leakage area on the surface layer of the diaper, an air flow channel is formed, and the liquid is penetrated quickly by hydrophilic non-woven fabric, the problems of breathability and leakage prevention are solved and the use effect is improved.
Patent Information
- Application Number
- CN202421374507.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-17
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-06-17
AI Technical Summary
The surface layer of existing diapers has a large contact area with the skin, poor breathability, and difficult liquid to spread, resulting in poor use effect.
The surface layer structure consisting of a fluffy area and an anti-side leakage area is adopted. The air cushion part protrudes upward to form an air flow channel. Combined with the hydrophilic non-woven fabric design, the liquid penetrates rapidly through the lower non-woven fabric to prevent side leakage.
Improves breathability and comfort, prevents liquid concentration and keeps the surface layer dry.
Smart Images
Figure CN223068693U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of non-woven fabrics, and particularly relates to a fluffy cotton layer structure for absorbent articles. Background Art
[0002] In the field of disposable sanitary products, the structure and performance of the surface layer non-woven fabric have a great influence on the use performance of products such as baby diapers and adult diapers. It is an important component of diapers, used to directly contact the skin and enable liquids to pass through normally. However, most of the surfaces of the existing diaper surface layers are not treated or structurally improved. During use, the surface of the surface layer often has too large a direct contact area with the skin, making it difficult for air to pass through smoothly and difficult to achieve a good air permeability effect. At the same time, when in contact with liquids, the liquids are also difficult to spread smoothly, resulting in the liquids often being concentrated in one place and difficult to be quickly adsorbed, and it is difficult to achieve a good use effect. Summary of the Utility Model
[0003] In view of the technical defects existing in the background art, the utility model proposes a fluffy surface layer structure for absorbent articles, which solves the above technical problems and meets the actual needs. The specific technical solutions are as follows:
[0004] A fluffy surface layer structure for absorbent articles, comprising a surface layer main body. The thickness direction of the surface layer main body is composed of an upper non-woven fabric and a lower non-woven fabric laminated together. The upper non-woven fabric consists of a fluffy area and anti-leakage areas arranged on both sides of the fluffy area. The fluffy area is composed of a number of upwardly convex air cushion parts. The outer edge of the air cushion part is provided with a first lamination part. The upper non-woven fabric is provided with penetration holes at the positions corresponding to the upper end surfaces of the air cushion parts. The anti-leakage areas are composed of a number of blocking strips.
[0005] As an improvement of the above solution, both the fluffy area and the anti-leakage areas extend along the length direction of the surface layer main body. The proportion of the unit area of any one anti-leakage area in the unit area of the surface layer main body is 5% - 30%.
[0006] As an improvement of the above solution, the blocking strips extend along the length direction of the surface layer main body and are equally spaced along the width direction of the anti-leakage areas. The top ends of the blocking strips are arched in an arc shape.
[0007] As an improvement of the above solution, the upper non-woven fabric and the lower non-woven fabric are laminated and fixed at the positions corresponding to the spaces between two adjacent air cushion parts to form the first lamination part. The air cushion parts are convex in a hexagonal star shape. The first lamination part is in a diamond shape and is arranged around the air cushion parts at equal intervals.
[0008] As an improvement to the above solution, the penetration holes include a central penetration hole and peripheral penetration holes. A central penetration hole is provided at the center of the end face of the air cushion part, and at least one layer of peripheral penetration holes is provided around the central penetration hole.
[0009] As an improvement to the above solution, both the upper non-woven fabric and the lower non-woven fabric are ES hot air non-woven fabrics. Among them, PE fibers and PET fibers are arranged in the upper non-woven fabric, and the PE fibers and PET fibers are melt-bonded to the upper non-woven fabric.
[0010] As an improvement to the above solution, a pressing line is provided along the length direction of the anti-side leakage area. The pressing line is composed of a number of second pressing parts arranged at equal intervals along its length direction. The pressing line is provided on both sides or any one side of the blocking strip.
[0011] As an improvement to the above solution, the fluffy area and the anti-side leakage area are integrally hot-pressed and formed by the upper non-woven fabric and the lower non-woven fabric. The width dimension of the upper non-woven fabric is not greater than the width dimension of the lower non-woven fabric.
[0012] As an improvement to the above solution, the fiber gap of the upper non-woven fabric is larger than the fiber gap of the lower non-woven fabric, and the thickness dimension of the upper non-woven fabric is larger than the thickness dimension of the lower non-woven fabric.
[0013] The beneficial effects of the present utility model are as follows: One end face of the surface layer main body in contact with the human body is composed of a fluffy area and an anti-side leakage area. The fluffy area is formed into a number of air cushion parts by hot pressing. The top of the air cushion part protrudes upward and contacts the surface of the human body during use, reducing the contact area between the surface layer main body and the human body while having a comfortable touch. The first pressing part arranged on the outer edge of the air cushion part can form an air flow channel between the human body surface and the surface layer main body, increasing the air permeability of the surface layer. The anti-side leakage area is arranged on both sides of the fluffy area, playing a certain role in preventing side leakage. The hydrophilicity of the lower non-woven fabric is stronger than that of the upper non-woven fabric. The liquid is quickly penetrated into the lower non-woven fabric through the penetration holes and the fiber gaps of the upper non-woven fabric under the guidance of the lower non-woven fabric, so that the end face of the surface layer main body in contact with the human body remains dry. Description of the Drawings
[0014] Figure 1 It is a schematic structural diagram in the thickness direction of the surface layer main body of the present utility model.
[0015] Figure 2 It is a schematic end face structure diagram of the surface layer main body of the present utility model.
[0016] Figure 3 This is Figure 2 An enlarged schematic diagram of the structure of part A in it.
[0017] Figure 4 This Figure 2 is a schematic enlarged view of part B in it.
[0018] Figure 5 is a schematic view of the main structure of the surface layer of the present utility model.
[0019] Figure 6 is a schematic view of the back structure of the main body of the surface layer of the present utility model.
[0020] Wherein: the main body of the surface layer 1, the upper non-woven fabric 101, the lower non-woven fabric 102, the fluffy area 2, the side leakage prevention area 3, the air cushion part 4, the first pressing part 5, the penetration holes 6, the central penetration hole 601, the peripheral penetration holes 602, the blocking strips 7, the pressing line 8, the second pressing part 801. Specific embodiments
[0021] The following combines the drawings with related embodiments to describe the embodiments of the present utility model. The embodiments of the present utility model are not limited to the following embodiments, and the relevant necessary components involved in the present utility model should be regarded as well-known technologies in the technical field, which can be known and mastered by those skilled in the technical field.
[0022] As Figures 1 to 6 shown, a fluffy surface layer structure for absorbent articles includes a main body of the surface layer 1. The thickness direction of the main body of the surface layer 1 is composed of a composite of an upper non-woven fabric 101 and a lower non-woven fabric 102. The upper non-woven fabric 101 is composed of a fluffy area 2 and side leakage prevention areas 3 arranged on both sides of the fluffy area 2. The fluffy area 2 is composed of a plurality of upwardly convex air cushion parts 4. The outer edge of the air cushion part 4 is provided with a first pressing part 5. The upper non-woven fabric 101 is provided with penetration holes 6 at the upper end face positions corresponding to the air cushion parts 4. The side leakage prevention areas 3 are composed of a plurality of blocking strips 7 extending along the length direction of the main body of the surface layer 1. The blocking strips 7 are arranged at equal intervals along the width direction of the side leakage prevention areas 3, and the top ends are arched in an arc shape.
[0023] As Figure 1 shown, in the structure of the main body of the surface layer 1 in the thickness direction of the present utility model, the main body of the surface layer 1 is successively provided with an upper non-woven fabric 101 and a lower non-woven fabric 102 from top to bottom along its thickness direction. The upper non-woven fabric 101 and the lower non-woven fabric 102 are press-fitted and fixed through the first pressing part 5 and the second pressing part 801. Both the upper non-woven fabric 101 and the lower non-woven fabric 102 are ES hot air non-woven fabrics. Among them, PE fibers and PET fibers are arranged in the upper non-woven fabric 101, and the PE fibers and PET fibers are melt-bonded with the upper non-woven fabric 101;
[0024] It should be noted that the ES hot air non-woven fabric is composed of irregularly arranged ES fibers and has strong hydrophilicity. A large number of carboxyl -COOH and ester groups -COO- are contained in its molecular structure, which can form hydrogen bonds with water molecules, thus enabling the ES fibers to have good hydrophilicity. Among them, the hydrophilicity of the lower non-woven fabric 102 is stronger than that of the upper non-woven fabric 101. The liquid is quickly infiltrated into the lower non-woven fabric 102 through the penetration holes 6 and the fiber gaps of the upper non-woven fabric 101 under the guidance of the lower non-woven fabric 102, so that the end face of the surface layer main body 1 in contact with the human body remains dry.
[0025] It should be noted that PE fibers and PET fibers are arranged in the upper non-woven fabric 101. The PE fibers are easy to process, enhance the elongation and tensile properties of the upper non-woven fabric 101, facilitate the hot pressing of the upper non-woven fabric 101 to form the fluffy area 2 and the anti-side leakage area 3, and at the same time have good softness and comfort. The PET fibers have a certain durability, can well maintain the shape, are not easy to deform, and improve the durability of the non-woven fabric.
[0026] It should be noted that the fiber gap of the upper non-woven fabric 101 is larger than that of the lower non-woven fabric 102, the thickness dimension of the upper non-woven fabric 101 is larger than that of the lower non-woven fabric 102, and the fluffy thickness of the upper non-woven fabric 101 is greater than that of the lower non-woven fabric 102. Thus, after hot pressing to form the first pressing part 5 and the second pressing part 801, the end face of the upper non-woven fabric 101 bulges upward in a fluffy shape.
[0027] As Figures 1 to 4 shown, in the end face structure of the surface layer main body 1 of the present utility model, the surface layer main body 1 is composed of a fluffy area 2 and an anti-side leakage area 3. The fluffy area 2 is provided with a plurality of air cushion parts 4 formed by hot pressing and penetration holes 6 arranged on the surface of the air cushion parts 4. The top end of the air cushion part 4 bulges upward in a hexagonal star shape and fits with the human body surface, reducing the fitting area between the surface layer main body 1 and the human body. The first pressing part 5 between two adjacent air cushion parts 4 forms an air flow channel, which increases the air permeability and flow guiding performance of the surface layer main body 1 through the air flow channel, and increases the comfort when the surface layer is used.
[0028] As Figure 1 and Figure 4 shown, further, in the above solution, penetration holes 6 are provided along the thickness direction of the upper non-woven fabric 101 layer. As Figure 5As shown, the penetration holes 6 do not penetrate the lower non-woven fabric 102. The penetration holes 6 include a central penetration hole 601 and peripheral penetration holes 602. A central penetration hole 601 is provided at the center of the end face of the air cushion part 4, and at least one layer of peripheral penetration holes 602 is provided around the central penetration hole 601. The top of the air cushion part 4 contacts the human body surface. The lower non-woven fabric 102 guides the liquid to quickly pass through the upper non-woven fabric 101 along the fiber gaps of the penetration holes 6 and the upper non-woven fabric 101, so that the end face of the surface layer main body 1 in contact with the human body remains dry.
[0029] Further, in the above solution, both the fluff zone 2 and the leak-proof zone 3 extend along the length direction of the surface layer main body 1. The proportion of the unit area of any one leak-proof zone 3 in the unit area of the surface layer main body 1 is 5% - 30%.
[0030] Further, in the above solution, the upper non-woven fabric 101 and the lower non-woven fabric 102 are press-fitted and fixed at the positions corresponding to the adjacent two air cushion parts 4, thereby forming a first press-fitting part 5. The first press-fitting part 5 is diamond-shaped and is arranged at equal intervals around the air cushion part 4.
[0031] Further, in the above solution, leak-proof zones 3 are provided on both sides of the fluff zone 2. A press-fitting line 8 is provided along the length direction of the leak-proof zone 3. The press-fitting line 8 is composed of a number of second press-fitting parts 801 arranged at equal intervals along its length direction. The press-fitting line 8 is arranged on both sides or any one side of the blocking strip 7. By pressing the upper non-woven fabric 101 and the lower non-woven fabric 102 through the press-fitting line 8, a blocking strip 7 extending along the length direction of the surface layer main body 1 is formed. The blocking strip 7 is arranged at equal intervals along the width direction of the leak-proof zone 3, and the top end is arched in an arc shape, which has a certain leak-proof effect.
[0032] Further, in the above solution, the fluff zone 2 and the leak-proof zone 3 are integrally thermoformed by the upper non-woven fabric 101 and the lower non-woven fabric 102. The width dimension of the upper non-woven fabric 101 is not greater than the width dimension of the lower non-woven fabric 102.
[0033] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present invention, several improvements and refinements can still be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.
Claims
1. A fluff surface layer structure for an absorbent article, characterized in that, It includes a surface layer main body (1), the thickness direction of the surface layer main body (1) is composed of a composite of an upper non-woven fabric (101) and a lower non-woven fabric (102). The upper non-woven fabric (101) is composed of a fluff area (2) and leak-proof areas (3) arranged on both sides of the fluff area (2). The fluff area (2) is composed of a number of upwardly convex air cushion parts (4). The outer edge of the air cushion part (4) is provided with a first pressing part (5). The upper non-woven fabric (101) is provided with permeation holes (6) at the position corresponding to the upper end face of the air cushion part (4). The leak-proof area (3) is composed of a number of blocking strips (7).
2. The fluff surface layer structure for an absorbent article according to claim 1, wherein Both the fluff area (2) and the leak-proof areas (3) extend along the length direction of the surface layer main body (1). The proportion of the unit area of any one leak-proof area (3) in the unit area of the surface layer main body (1) is 5% - 30%.
3. The fluff surface layer structure for an absorbent article according to claim 1, wherein, The blocking strips (7) extend along the length direction of the surface layer main body (1) and are arranged at equal intervals along the width direction of the leak-proof area (3). The top of the blocking strips (7) is arched in an arc shape.
4. The fluff surface layer structure for an absorbent article according to claim 1, characterized in that, The upper non-woven fabric (101) and the lower non-woven fabric (102) are press-fitted and fixed at the position corresponding to the space between two adjacent air cushion parts (4), thereby forming a first pressing part (5). The air cushion part (4) protrudes in a hexagonal star shape. The first pressing part (5) is in a diamond shape and is arranged at equal intervals around the air cushion part (4).
5. The fluff layer structure for an absorbent article according to claim 1, wherein The permeation holes (6) include a central permeation hole (601) and peripheral permeation holes (602). The central permeation hole (601) is provided at the center position of the end face of the air cushion part (4), and at least one layer of peripheral permeation holes (602) is arranged around the central permeation hole (601).
6. The fluff surface layer structure for an absorbent article according to claim 1, wherein Both the upper non-woven fabric (101) and the lower non-woven fabric (102) are ES hot air non-woven fabrics. Among them, the upper non-woven fabric (101) is provided with PE fibers and PET fibers, and the PE fibers and PET fibers are melt-bonded to the upper non-woven fabric (101).
7. The fluff surface layer structure for an absorbent article according to claim 1, wherein A pressing line (8) is arranged along the length direction of the leak-proof area (3). The pressing line (8) is composed of a number of second pressing parts (801) arranged at equal intervals along its length direction. The pressing line (8) is arranged on both sides or any one side of the blocking strips (7).
8. The fluff surface layer structure for an absorbent article according to claim 1, characterized in that, The fluff area (2) and the leak-proof areas (3) are integrally hot-pressed and formed through the upper non-woven fabric (101) and the lower non-woven fabric (102). The width dimension of the upper non-woven fabric (101) is not greater than the width dimension of the lower non-woven fabric (102).
9. The fluff surface layer structure for an absorbent article according to claim 1, characterized in that, The fiber gap of the upper non-woven fabric (101) is larger than that of the lower non-woven fabric (102), and the thickness dimension of the upper non-woven fabric (101) is larger than that of the lower non-woven fabric (102).