Anti-end-leakage elastic fitting lace structure and disposable absorption product comprising same
By designing an anti-end leakage elastic lace structure in disposable absorbent products and using the folding connection between spandex yarn and non-woven fabric sheets, the problem of excrement leaking from the front and rear ends is solved, achieving a more comfortable and fit user experience.
Patent Information
- Application Number
- CN202421187288.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-28
- Publication Date
- 2025-09-05
- Estimated Expiration
- 2034-05-28
AI Technical Summary
Existing disposable absorbent products such as baby diapers and menstrual pants are not provided with elastic structures to prevent side leakage, resulting in excretions such as feces, loose stools, urine, and menstrual blood leaking from the front and back ends.
The layout and structural design of spandex yarn and non-woven fabric sheet are adopted to construct an elastic lace structure that prevents end leakage, including the folding and adhesive connection of spandex yarn and non-woven fabric sheet, forming an elastic lace structure with naturally opened or raised surplus space and a suitable contact area.
It effectively prevents excrement from leaking from the front and rear ends, while reducing the tightness of the spandex thread on the skin, achieving a more comfortable and fit use effect.
Smart Images
Figure CN223299255U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of disposable absorbent products, and particularly relates to an end leakage-proof elastic body-fitting lace structure and a disposable absorbent product containing the structure. Background Art
[0002] In the field of disposable absorbent products, such as baby diapers, baby pull-up pants or menstrual pants, etc., the common feature of these products is that they are equipped with anti-side leakage elastic structures, such as: left anti-leakage partition edge, right anti-leakage partition edge. Obviously, the function of these anti-side leakage elastic structures is to prevent the side leakage of liquid or body fluids.
[0003] However, the applicant has not found any elastic structure to prevent side leakage in any of the disposable absorbent products currently on the market in this field, which may cause excrement such as feces, loose stools, urine, and menstrual blood to leak from the front and rear ends.
[0004] To address the above problems, the present application provides an anti-end leakage (front and back leakage) elastic lace structure that can effectively prevent feces, loose stools, urine, menstrual blood and other excretions from leaking from the front and back ends; at the same time, it achieves a more comfortable and fit elastic front and back leakage design. Utility Model Content
[0005] In response to the above-mentioned problems, the utility model constructs an elastic lace structure that prevents end leakage (front and back leakage) through the layout and structural design of spandex yarns and non-woven fabric sheets, which can effectively prevent excrement such as feces, loose stools, urine, and menstrual blood from leaking from the front and back ends; at the same time, when the elastic lace structure comes into contact with the skin, due to its larger contact area, the elastic yarn is less likely to squeeze the human skin, reducing the tight feeling of the spandex yarn on the human skin, thereby achieving a more comfortable and fit elastic front and back leakage design.
[0006] Specifically, the present invention adopts the following technical solutions:
[0007] The invention discloses an elastic, form-fitting lace structure for preventing end leakage, comprising a plurality of spandex yarns and a non-woven fabric sheet. The non-woven fabric sheet is folded and wrapped around the spandex yarns, and connected into one piece by an adhesive layer. The elastic, form-fitting lace structure is provided on at least one of the two outer sides of the spandex yarns. The elastic, form-fitting lace structure has a naturally opened or raised surplus space and a form-fitting contact area, so that the elastic, form-fitting lace structure fits the user in use to form an elastic, form-fitting lace structure for preventing end leakage.
[0008] Preferably, the spandex yarns are arranged at intervals and include at least two outer spandex yarns respectively arranged on the two outer sides, so that the non-woven sheet is compositely connected to all the spandex yarns; the non-woven sheet is extended outward along one of the outer spandex yarns, or along the two outer spandex yarns at the same time to a certain excess size, and then the non-woven sheet is folded along the excess size until the folded non-woven sheet covers all the spandex yarns, and the non-woven sheet adapted to the excess size forms an elastic fit lace structure.
[0009] Preferably, the non-woven fabric sheet is folded and covered once to form the end leakage-proof elastic fit lace structure.
[0010] Preferably, the non-woven fabric sheet is folded and covered twice to form the end-leakage-proof elastic body-fitting lace structure, and the end-leakage-proof elastic body-fitting lace structure has a three-dimensional outward-turned structure.
[0011] Preferably, the surplus size is that the distance between the outer spandex yarn and the folding part is 1-10 mm.
[0012] Preferably, the spandex yarn is a fine denier spandex yarn of 150-280D, the number of the yarns is 1-10, the gap between two adjacent spandex yarns is 1.5-10.0 mm, and more preferably the number of the yarns is 2-5.
[0013] On the basis of the above scheme, a disposable absorbent product is further provided, comprising a liquid-permeable top layer, a liquid-impermeable bottom layer, an absorbent core located therebetween, and an elastic waist circumferentially arranged at the end positions of the disposable absorbent product, characterized in that the front end portion and the rear end portion of the disposable absorbent product, which are facing the inner side of the user, are respectively provided with the aforementioned anti-end leakage elastic fit lace structure, corresponding to the anti-front leakage elastic fit lace structure and the anti-back leakage elastic fit lace structure.
[0014] Preferably, in the anti-end leakage elastic fit lace structure, at least the gap between the spandex yarn located near the crotch position and the folded portion on the lower outer side of the anti-end leakage elastic fit lace structure is set to 1-10 mm.
[0015] Preferably, the areas where the two longitudinal ends of the absorbent core overlap with the end leakage-preventing elastic body-fitting lace structure constitute a front leakage pocket and a rear leakage pocket, respectively.
[0016] Preferably, the anti-end leakage elastic fit lace structure is compositely connected to the top sheet composed of a liquid-permeable top layer and a leak-proof partition edge, and the anti-end leakage elastic fit lace structure together with the top sheet is recessed inward along the direction of the liquid-impermeable bottom layer to form a concave structure or an inverted concave structure to increase the raised height of the elastic fit lace structure.
[0017] Preferably, the elastic waist comprises an inner waist nonwoven fabric sheet, the inner waist nonwoven fabric is extended toward the end of the disposable absorbent article to form an inner waist nonwoven fabric extension piece, and the inner waist nonwoven fabric extension piece is used as the nonwoven fabric sheet.
[0018] Preferably, the non-woven fabric sheet overlaps and covers the inner waist non-woven fabric or the outer waist non-woven fabric, so that the end leakage-proof elastic fit lace structure is firmly sealed on the product.
[0019] It should be pointed out that the spandex yarn of the present invention can also be replaced by elastic non-woven fabric.
[0020] The beneficial effects achieved by the present invention are:
[0021] The utility model forms an elastic, form-fitting lace structure with an anti-end leakage (front and back leakage) effect through the structural design of spandex yarn and non-woven fabric sheets. The elastic, form-fitting lace structure has a naturally open or bulging surplus space and a form-fitting contact area. When the elastic, form-fitting lace structure is in use (applied to disposable absorbent products), it can fit the user and form an elastic, form-fitting lace structure that prevents end leakage.
[0022] This disposable absorbent product, featuring an elastic, form-fitting lace structure that prevents leakage from the front and rear ends, effectively prevents excrement, such as feces, loose stools, urine, and menstrual blood, from leaking outward. Furthermore, the elastic structure, due to its larger contact area with the skin, makes it less likely for elastic yarns, such as spandex, to constrict the skin, reducing the feeling of constriction caused by the spandex yarn, thereby achieving a more comfortable and form-fitting product. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 The present invention is a schematic diagram of a disposable absorbent product provided with an elastic, form-fitting lace structure to prevent end leakage.
[0024] Figure 2 It is a schematic diagram of the cross section of the anti-end leakage elastic fit lace structure.
[0025] Figure 3 It is a schematic cross-sectional view of an elastic, form-fitting lace structure with a three-dimensional outward-turned structure to prevent end leakage.
[0026] Figure 4 It is a schematic diagram of the unfolding and bulging state of the elastic fit lace structure.
[0027] Figure 5 It is a schematic diagram of a concave structure. DETAILED DESCRIPTION
[0028] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clear and understandable, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.
[0029] Existing disposable absorbent products, such as baby diapers, baby pull-ups, adult diapers, and menstrual pants, all share common structural features, including a liquid-permeable top layer (surface layer), a liquid-impermeable bottom layer, and an absorbent core positioned between the two. This can be a composite absorbent core or a traditional fluff pulp / water-absorbent resin blend core. Furthermore, these products all feature elastic structures to prevent side leakage, including left and right leak-proof edges. While these structures prevent side leakage of liquids or bodily fluids, the lack of elastic structures to prevent end leakage in existing products means that excrement, loose stools, urine, menstrual blood, and other excrement may leak from the front or rear ends. For baby diapers and baby pull-ups, elastic waistbands are also circumferentially positioned along the ends of the disposable absorbent product.
[0030] Please also refer to the attached Figure 1-5 In response to the above-mentioned problems, the present utility model provides an end-leakage-proof elastic fit lace structure 2, comprising a plurality of spandex yarns 21 and a non-woven fabric sheet 22. The spandex yarns 21 are arranged at intervals and include at least two outer spandex yarns arranged on two outer sides, respectively. The non-woven fabric sheet is folded and wrapped around the spandex yarns, and connected as a whole through an adhesive layer. At least one of the two outer spandex yarns is provided with an elastic fit lace structure 23. The elastic fit lace structure 23 has a naturally opened or raised surplus space and a fit contact area, so that the elastic fit lace structure fits the user in use to form the end-leakage-proof elastic fit lace structure 2.
[0031] Specifically, the non-woven sheet 22 is compositely connected to all the spandex yarns 21; the non-woven sheet 22 is extended outward along one of the outer spandex yarns, or along the two outer spandex yarns at the same time to a number of surplus dimensions 24, and then the non-woven sheet is folded along the surplus dimension 24 until the folded non-woven sheet 25 covers all the spandex yarns, and the non-woven sheet adapted to the surplus dimension forms an elastic fit lace structure 23.
[0032] The end-leakage-proof elastic fit lace structure 2A including the elastic fit lace structure 23 is implemented in the following manner:
[0033] The spandex yarn 21 is a fine denier spandex yarn of 150-280D, and the number of spandex yarns can be 2-10, and preferably 2-5. The specific number can be selected by technical personnel in this field according to the needs of the product. Obviously, when using coarse denier spandex yarn, 2 coarse denier spandex yarns can be selected, and when using fine denier spandex yarn, 5 can be used. The gap between two adjacent spandex yarns is 1.5-10.0mm, and the gap can be equal or different gaps can be selected. The specific size is familiar to technical personnel.
[0034] The spandex yarns 21 are arranged at intervals, including at least two outer spandex yarns, such as a first outer spandex yarn 211 and a second outer spandex yarn 212, arranged on the two outer sides. After the non-woven sheet 22 and the spandex yarn are laminated, the non-woven sheet 22 is extended outwardly along the second outer spandex yarn 212 by a certain excess size 24 and then folded. Then, in the same manner, the non-woven sheet 22 is extended outwardly on the other side by a certain excess size 24 and then folded. That is, the two outer spandex yarns, such as the first outer spandex yarn and the second outer spandex yarn, are extended outwardly by a certain excess size and then folded. Of course, it is also possible to extend only the first outer spandex yarn 211 or the second outer spandex yarn 212 by a certain excess size 24 on one side and then fold it, while no excess size 24 is provided on the other side. Obviously, the surplus size is the distance between the outer spandex yarns, such as the first outer spandex yarn and the second outer spandex yarn, and the folding portion, and the distance is 1-10 mm. The specific distance size is familiar to the technical personnel.
[0035] The non-woven fabric sheet 22 is folded along the surplus size 24 (performed a folding and covering operation) until the folded non-woven fabric sheet 25 covers all the spandex yarns 21 , and the non-woven fabric sheet adapted to the surplus size forms an elastic fit lace structure 23 .
[0036] It should be noted that the above embodiment can also use one spandex yarn to perform a folding and covering operation as needed to form an elastic and form-fitting lace structure 23 .
[0037] The end-leakage-proof elastic fit lace structure 2B including the elastic fit lace structure 23 can also be implemented in the following manner:
[0038] The layout of the spandex yarn 21 is similar to that of the previous embodiment. The difference between this embodiment and the previous embodiment is that the non-woven fabric sheet 22 is folded and covered twice to form the anti-end leakage elastic fit lace structure 2B. The anti-end leakage elastic fit lace structure 2B has a three-dimensional eversion structure, specifically as follows:
[0039] After the non-woven sheet 22 is laminated with the spandex yarns 21, the non-woven sheet 22 is extended outward along one of the outer spandex yarns, such as the first outer spandex yarn or the second outer spandex yarn, or along both outer spandex yarns, such as the first outer spandex yarn and the second outer spandex yarn, to an excess dimension 24 of 1-10 mm. The non-woven sheet 22 is then folded over along the excess dimension 24 for the first time until the folded-over non-woven sheets 26A and 26B cover all of the spandex yarns 21, forming an elastic, form-fitting lace structure 23 with the non-woven sheet corresponding to the excess dimension. The non-woven sheets 26A and 26B are then folded over a second time along a certain position. The folded-over non-woven sheet is then glued to the top sheet (composed of a liquid-permeable top layer and a leak-proof barrier) of the disposable absorbent product during use. The present invention does not impose any specific restrictions on the location of the second fold, and those skilled in the art will be familiar with and select this location based on the product structure and needs, thereby forming the anti-end leakage elastic fit-fitting lace structure 2B with a three-dimensional outward-turned structure. This three-dimensional outward-turned structure means that when the anti-end leakage elastic fit-fitting lace structure is used in a disposable absorbent product, the three-dimensional shape of the anti-end leakage elastic fit-fitting lace structure protrudes from the top sheet of the disposable absorbent product or is suspended above the top sheet, forming a three-dimensional outward-turned structure.
[0040] The aforementioned anti-end leakage elastic fit lace structure is used or connected in the disposable absorbent product 1 as follows: The front end portion 11 and the rear end portion 12 of the disposable absorbent product, facing the inner side of the user, are each provided with the aforementioned anti-end leakage elastic fit lace structure 2, corresponding to the front leakage elastic fit lace structure and the rear leakage elastic fit lace structure, respectively. Among them:
[0041] Specifically, the specific implementation methods are as follows:
[0042] (1) In the anti-end leakage elastic fit lace structure 2, at least the gap between the spandex yarn near the crotch position and the folded portion located on the lower outer side of the anti-end leakage elastic fit lace structure is set to 1-10 mm.
[0043] (2) The areas where the two longitudinal ends of the absorbent core overlap with the end leakage-proof elastic fit lace structure respectively constitute the front leakage pocket 27A and the rear leakage pocket 27B.
[0044] When liquid excretions, such as body fluids, urine, etc., spread along the front and back ends of the pull-up pants, the elastic fit lace structure 23 plays a role in preventing the liquid from leaking to the front end of the pull-up pants (the front of the user) (i.e., front leakage), or / and preventing the liquid from leaking to the back end of the pull-up pants (the back of the user) (i.e., back leakage), and the area where the absorbent core and the elastic waist overlap constitutes a leakage pocket, which is composed of a front leakage pocket 27A and a rear leakage pocket 27B, and drains the liquid to penetrate into the leakage pockets (front leakage pocket, rear leakage pocket), that is, the front leakage pocket and the rear leakage pocket respectively play the role of storing the blocked front leakage excretion and rear leakage excretion.
[0045] (3) A composite layer consisting of a liquid-permeable top layer 13 and a leak-proof partition 14 is defined as a top sheet, and then the end-leakage-proof elastic fit lace structure 2 is compositely connected to the top sheet, and the end-leakage-proof elastic fit lace structure 2 together with the top sheet is concave inwardly along the direction of the liquid-impermeable bottom layer to form a concave structure 15, or other structures such as an inverted concave structure, whose function is to increase the bulge height of the elastic fit lace structure 23.
[0046] In other specific implementations, the following implementations may be further performed:
[0047] (4) The elastic waist includes an inner waist non-woven fabric sheet, and the inner waist non-woven fabric is extended toward the end of the disposable absorbent product to form an inner waist non-woven fabric extension sheet, and the inner waist non-woven fabric extension sheet is used as the non-woven fabric sheet.
[0048] (5) The non-woven fabric sheet overlaps and covers the inner waist non-woven fabric or the outer waist non-woven fabric, so that the anti-end leakage elastic fit lace structure is firmly sealed on the product.
[0049] In addition, it should be pointed out that the spandex yarn of the present invention can also be replaced by elastic non-woven fabric.
[0050] The above embodiment forms an elastic fit lace structure with the effect of preventing end leakage (front and back leakage) through the structural design of spandex yarn and non-woven fabric sheet. The elastic fit lace structure has a naturally open or bulging surplus space and a fit contact area. When the elastic fit lace structure is in use (applied to disposable absorbent products), it can fit the user to form an elastic fit lace structure that prevents end leakage.
[0051] Disposable absorbent products, such as baby diapers, pull-on pants, adult diapers, or menstrual pants, equipped with this leak-proof elastic, form-fitting lace structure, can effectively prevent excrement, such as stool, loose stools, urine, and menstrual blood, from leaking out from the front and rear ends. Furthermore, due to the larger contact area, the elastic structure makes it less likely that spandex or other elastic yarns will constrict the skin, reducing the feeling of constriction, thereby achieving a more comfortable and form-fitting product experience.
[0052] Consumer trial testing:
[0053] 1. Comparative sample: Baby pull-up pants, size L, commercially available product, 10 sets in total as comparative samples, 5 pieces each.
[0054] 2. Test samples:
[0055] (1) A three-dimensional, outward-turned, anti-end-leakage elastic lace structure was prepared according to the embodiment of the present invention, and used as a front-leakage-proof elastic lace structure and a rear-leakage-proof elastic lace structure for later use. The parameters were: 180D spandex yarn, 4 yarns, a 3 mm gap, and a 7 mm distance between the two outer spandex yarns and the fold.
[0056] (2) Manual sample preparation was performed using a glue machine. The end-leakage-proof elastic fit lace structure was connected to the top sheet of the baby pull-up pants (same as the control sample). The front end and the rear end of the baby pull-up pants were respectively provided with an anti-front leakage elastic fit lace structure and an anti-back leakage elastic fit lace structure on the inner side facing the user. A total of 10 test samples were used, with 5 pieces in each.
[0057] 3. Test method:
[0058] (1) The samples were distributed to 10 trial users, who were asked to record their usage results truthfully. The statistical results are as follows:
[0059] sample Front leakage Back leakage (piece) End leakage subtotal (piece) End leakage rate (%) Comparison sample 3 5 8 16 Test sample 0 1 1 2
[0060] (2) Evaluation of fit by 10 parents (guardians) of test subjects:
[0061] The fit evaluation in the table below is the overall evaluation of the product by the parents (guardians) of 10 trial participants after trial.
[0062] sample Are there any marks or tightness? Is it comfortable and fits well? Comparison sample 4 people reported feeling marks or a tight feeling 6 people reported that the effect was good Test sample One person reported a slight tightening sensation 9 people reported that it was comfortable, fit well, and had no marks
[0063] The foregoing description shows and describes preferred embodiments of the present invention. As previously mentioned, it should be understood that the present invention is not limited to the form disclosed herein and should not be construed as excluding other embodiments. Instead, the present invention can be used in various other combinations, modifications, and environments and can be modified within the scope of the present invention as taught herein or through the techniques or knowledge of the relevant art. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention are intended to be protected by the claims appended hereto.
Claims
1. The anti-end leakage elastic fit lace structure includes a plurality of spandex yarns and non-woven fabric sheets, characterized by: The non-woven fabric sheet is folded and wrapped with the spandex yarn, and is connected into one piece by an adhesive layer. An elastic fit-fitting lace structure is provided on at least one of the two outer sides of the spandex yarn. The elastic fit-fitting lace structure has a naturally opened or raised surplus space and a fit-fitting contact area, so that the elastic fit-fitting lace structure fits the user in use to form an elastic fit-fitting lace structure that prevents end leakage.
2. The anti-end leakage elastic fit lace structure according to claim 1, characterized in that: The spandex yarns are arranged at intervals and include at least two outer spandex yarns arranged on the two outer sides respectively, and the non-woven sheet is compositely connected to all the spandex yarns; the non-woven sheet is extended outward along one of the outer spandex yarns, or along the two outer spandex yarns at the same time to a certain excess size, and then the non-woven sheet is folded along the excess size until the folded non-woven sheet covers all the spandex yarns, and the non-woven sheet adapted to the excess size forms an elastic fit lace structure.
3. The end-leakage-proof elastic fit lace structure according to claim 1 or 2, characterized in that: The non-woven fabric sheet is folded and covered once to form the end leakage-proof elastic body-fitting lace structure.
4. The end-leakage-proof elastic body-fitting lace structure according to claim 1 or 2, characterized in that: The non-woven fabric sheet is folded and covered twice to form the end-leakage-proof elastic body-fitting lace structure, and the end-leakage-proof elastic body-fitting lace structure has a three-dimensional outward-turned structure.
5. The anti-end leakage elastic fit lace structure according to claim 2, characterized in that: The surplus size is 1-10 mm between the outer spandex yarn and the folded portion.
6. The end-leakage-proof elastic body-fitting lace structure according to claim 2 or 5, characterized in that: The spandex yarn is a fine denier spandex yarn of 150-280D, the number of the yarns is 2-10, and the gap between two adjacent spandex yarns is 1.5-10.0 mm.
7. The end-leakage-proof elastic body-fitting lace structure according to claim 6, characterized in that: The number of the spandex yarns is 2-5.
8. A disposable absorbent article comprising a liquid-permeable topsheet, a liquid-impermeable backsheet, and an absorbent core disposed therebetween, characterized in that: The front and rear ends of the disposable absorbent product are respectively provided with an anti-end leakage elastic fit lace structure as described in any one of claims 1-7, which correspond to the anti-front leakage elastic fit lace structure and the anti-back leakage elastic fit lace structure.
9. The disposable absorbent article according to claim 8, characterized in that: In the anti-end leakage elastic body-fitting lace structure, at least the gap between the spandex yarn located near the crotch and on the lower outer side of the anti-end leakage elastic body-fitting lace structure and the folded part is set to 1-10 mm.
10. The disposable absorbent article according to claim 8, wherein: The areas where the two longitudinal ends of the absorbent core body overlap with the end leakage-proof elastic body-fitting lace structure respectively form a front leakage pocket and a rear leakage pocket.
11. The disposable absorbent article according to claim 8, wherein: The anti-end leakage elastic fit lace structure is compositely connected to a top sheet composed of a liquid-permeable top layer and a leak-proof partition edge, and the anti-end leakage elastic fit lace structure together with the top sheet is recessed inwardly along the direction of the liquid-impermeable bottom layer to form a concave structure or an inverted concave structure, so as to increase the raised height of the elastic fit lace structure.
12. The disposable absorbent article according to claim 8, wherein: It also includes an elastic waistband circumferentially arranged at the end position of the disposable absorbent article, the elastic waistband includes an inner waistband non-woven fabric sheet, the inner waistband non-woven fabric is extended toward the end of the disposable absorbent article to form an inner waistband non-woven fabric extension piece, and the inner waistband non-woven fabric extension piece is used as the non-woven fabric sheet.
13. The disposable absorbent article according to claim 8, wherein: The non-woven fabric sheet overlaps and covers the inner waist non-woven fabric or the outer waist non-woven fabric, so that the end leakage-proof elastic body-fitting lace structure is firmly sealed on the product.
14. The disposable absorbent article according to any one of claims 8 to 13, characterized in that: The spandex yarn may also be replaced by elastic non-woven fabric.