Tightening injury prevention baby paper diaper with organ type elastic waistline

The accordion elastic waist design and ultrasonic glue-free welding technology solve the problems of diaper waistline strangulation and adhesive irritation, and achieve the effect of anti-strangulation, breathable and beautiful baby diapers.

CN223453414UActive Publication Date: 2025-10-21FUJIAN NOVA HYGIENE PROD CO LTD
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Patent Information

Application Number
CN202422368418.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-27
Publication Date
2025-10-21
Estimated Expiration
2034-09-27

AI Technical Summary

Technical Problem

The existing diaper waist design is prone to causing marks and hurting the baby's skin, and cannot present the delicate and beautiful accordion-style elastic waist appearance. The adhesive may irritate the baby's skin.

Method used

It adopts an accordion elastic waist design. The waist part includes the first elastic area and the second elastic area from top to bottom. It uses a mesh structure woven with highly elastic fibers and ultrasonic glue-free welding technology, combined with a breathable bottom film and anti-side leakage area, and is equipped with a tightness adjustment area and a urine indicator strip.

Benefits of technology

It effectively prevents waist marks, promotes air circulation around the waist, avoids adhesive irritation, adapts to different body shapes, prevents side leakage, and provides a breathable, safe and comfortable use experience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of hygienic products, provides an anti-tightening-injury baby paper diaper with an organ-type elastic waistline, and solves the problems that waist tightening marks are easily generated at the waistline of an existing paper diaper, the skin of a baby is tightened and injured, the appearance of the exquisite and attractive organ-type elastic waistline cannot be presented, and the hand feeling and the air permeability are influenced by gluing and bonding. Comprising a paper diaper body and a waistline part which are connected with each other, the waistline part sequentially comprises a first elastic area and a second elastic area from top to bottom, the first elastic area comprises non-woven fabrics and an elastic net, the elastic net is wrapped between the non-woven fabrics, and the elastic net is of a net structure formed by weaving high-elasticity fibers; the second elastic area comprises an outer waistline layer, an elastic material layer and an inner waistline layer, wrinkles extending in the longitudinal direction are arranged on the surface of the outer waistline layer, the length L of each wrinkle is larger than or equal to 30 mm, the width W of each wrinkle is smaller than or equal to 10 mm, and the outer waistline layer, the elastic material layer and the inner waistline layer are subjected to spot welding through ultrasonic waves.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the field of sanitary products, especially to a baby diaper with an organ type elastic waistline. BACKGROUND

[0002] In the field of infant care, as a daily necessity, the performance and comfort of the diaper are directly related to the healthy growth and quality of life of infants. The traditional diaper adopts a glue bonding process in the design of the waistline. Although this design ensures the fixation of the diaper to a certain extent, the adhesive may irritate the delicate skin of infants over a long period of use, causing problems such as redness and marks. The problems are more prominent when the infants are highly active or have a change in body shape.

[0003] Chinese patent application No. 202221363389.2 discloses a pant-type diaper with a comfortable waistline, which includes a diaper main body. An elastic film is arranged inside the diaper main body. First, second, and third thread adhesives are arranged at the elastic film. The first thread adhesive is located on the left side of the elastic film, and the second thread adhesive is between the first and third thread adhesives. The first, second, and third thread adhesives are fixedly connected to the elastic film by gluing. The utility model uses an elastic film at the waist position, and the elastic film exerts force on the local sheet-shaped area, which is evenly stressed, reducing discomfort. The soft and comfortable touch, good ventilation, and reduced red buttocks are achieved. The left, middle, and right thread adhesives are used in a rectangular gluing manner, and no adhesive is applied to the remaining positions, reducing the red buttocks and marks. Unlike the single force exertion of the elastic band, the utility model effectively reduces the marks. However, the diaper cannot present a delicate and beautiful organ type elastic waistline, and the adhesive used may irritate the delicate skin of infants.

[0004] Chinese patent application No. 201920465819.3 discloses a pull-up diaper with a soft waist structure. The pull-up diaper includes an outer layer, a middle layer, and an inner layer. The middle layer is provided with an elastic body channel for mounting an elastic body. The elastic body can freely move in the elastic body channel. The elastic bodies are arranged at intervals. The middle layer includes first to fifth fixed areas in the horizontal direction. The third fixed area is a hot melt adhesive fixed area for strengthening the fixation of the elastic body. The first, second, fourth, and fifth fixed areas are ultrasonic fixed areas. The ultrasonic pressing height of the first and fifth fixed areas is greater than that of the second and fourth fixed areas. The utility model only has one hot melt adhesive fixed area, and the other areas use ultrasonic pressing points to strengthen the fixation of the elastic body, greatly reducing the amount of adhesive and production cost. However, the waistline area of the pull-up diaper is distributed with a large number of elastic bands, and the stress is concentrated, which may cause marks on the waist and injure the skin of infants. SUMMARY

[0005] Therefore, the utility model provides an organ type elastic waistline's anti -injure baby paper diaper of pressing, solves the existing paper diaper waistline place easy to produce waist department press mark, press the baby skin, cannot present exquisite beautiful organ type elastic waistline appearance, and the problem that the glue adhesion influences the hand feeling, the air permeability.

[0006] To achieve the above object, the utility model adopts the following technical scheme:

[0007] An organ type elastic waistline's anti -injure baby paper diaper, including paper diaper body, waistline part who connects each other, the waistline part includes front waistline, side waistline and rear waistline, the paper diaper body includes surface layer, absorbent body and bottom film, the paper diaper body still includes abdominal circumference part and hip circumference part, define absorbent body has along the length direction's longitudinal direction and along the width direction's transverse direction, the surface layer, absorbent body and bottom film transverse two sides extend outward and form the anti -side leakage area, be equipped with the leakage prevention baffle on the anti -side leakage area;The waistline part along the longitudinal direction's width is >= 3cm, the waistline part includes first elastic area and second elastic area from top to bottom in proper order, the first elastic area includes non -woven fabric and elastic net, the elastic net is covered between non -woven fabric, the elastic net is the net -like structure that high elasticity fiber is woven into;Second elastic area includes outer waistline layer, elastic material layer, inner waistline layer, the outer waistline layer surface is equipped with along the longitudinal direction and extends the wrinkle, each the length L of the wrinkle is >= 30mm, width W <= 10mm, the outer waistline layer, elastic material layer and inner waistline layer between adopt ultrasonic wave and carry out spot welding.

[0008] Further, the stretch ratio of the waistline part is greater than the stretch ratio of the hip circumference part, the stretch ratio of the waistline part is 1.8-2.0 times, and the stretch ratio of the hip circumference part is 1.3-1.4 times.

[0009] Further, the elastic material layer is a fine denier rubber, the direction of the fine denier rubber is transverse, the number of the fine denier rubber is 10-220, the denier of the fine denier rubber is 70-200D, and the spacing between adjacent fine denier rubbers is 1-10mm.

[0010] Further, the outer waistline layer and the inner waistline layer are SS, SSS or SSSS spun-bonded non-woven materials, the unit area mass of the spun-bonded non-woven material is 10-20g / m 2 .

[0011] Further, the bottom film is a PE breathable bottom film, the bottom film is provided with a plurality of high-breathability micropores, and the diameter of the high-breathability micropores is 0.0004-20μm.

[0012] Further, the anti-side leakage area is provided with an elastic leg band, and the elastic leg band is an elastic spandex filament.

[0013] Further, the static water pressure of the leakage-proof barrier is >= 150 mmH2O, and the mass per unit area is 13-18 g / m 2 .

[0014] Further, the leakage-proof barrier comprises an outer three-dimensional containment layer and an inner three-dimensional containment layer.

[0015] Further, the side waistband is provided with a left waist pad and a right waist pad, and the front waistband is provided with an elastic adjustment area for bonding the left waist pad and the right waist pad.

[0016] Further, the bottom film is provided with a urine indication strip.

[0017] By adopting the foregoing technical scheme, the utility model has the beneficial effects that:

[0018] 1. The width of the waistband portion in the longitudinal direction is >= 3 cm, and the wide waistband can ensure sufficient waistband elasticity without too strong compression on the baby's abdomen when the baby breathes;

[0019] 2. The waistband portion comprises a front waistband, a side waistband, and a back waistband, and the elastic waistband of 360 degrees is provided, so that the side waistband has elasticity. Since the main force of the diaper is mainly in the side waistband, the provision of the elastic side waistband not only helps to relieve the compression on the abdomen, but also increases the elasticity while maintaining a relatively low compression, which is helpful for stabilizing the diaper and preventing urine leakage.

[0020] 3. The waistband portion comprises a first elastic zone and a second elastic zone from top to bottom, the elastic net of the first elastic zone is covered between the non-woven fabrics, the elastic net is a net structure formed by high-elasticity fiber weaving, which is better in elasticity and less likely to hurt the baby, and is beneficial to the free circulation of air inside and outside the waist; the outer waistband layer, the elastic material layer, and the inner waistband layer of the second elastic zone are ultrasonically welded without glue, and wrinkles extending in the longitudinal direction are formed on the surface of the outer waistband layer, i.e. a piano-style appearance wave cavity, which not only enhances the softness of the waistband, avoids waist marks, but also promotes the free circulation of air inside and outside the waist, rapidly discharges the hot and humid air, effectively prevents the occurrence of skin problems such as redness, and avoids the possible allergy or discomfort caused by the adhesive, making the product more environmentally friendly and safe.

[0021] 4. A plurality of high-permeability micropores are provided on the bottom film, since the minimum diameter of water droplets is 20 μm, and the diameter of water vapor molecules is 0.0004 μm, and the diameter of the micropores is between the two, which ensures air permeability without water permeability; the bottom film is also provided with a urine indication strip, which will change color obviously when it is wetted by urine, so that it can be directly judged whether the diaper needs to be replaced.

[0022] 5、Side waist circumference is provided with left waist paste and right waist paste, front waist circumference is provided with elastic adjusting area of bonding left waist paste and right waist paste, can make paper diaper adapt to baby of different weight and waist circumference;

[0023] 6、Prevent side leakage area is equipped with elastic band of leg department, can according to the body shape and movement of baby automatically adjust the tightness, ensure that the separation edge is always adhered to the skin of baby, thereby effectively prevent side leakage, simultaneously set double-layer leakage prevention separation edge further effectively prevent side leakage. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is the structure schematic view of paper diaper in the embodiment of the utility model;

[0025] Figure 2 It is the side surface schematic view of paper diaper in the embodiment of the utility model;

[0026] Figure 3 It is the front surface schematic view of paper diaper in the embodiment of the utility model;

[0027] Figure 4 It is the back surface schematic view of paper diaper in the embodiment of the utility model;

[0028] Figure 5 It is the structure schematic view of first elastic area in the embodiment of the utility model;

[0029] Figure 6 It is the structure schematic view of outer waist circumference layer in the embodiment of the utility model;

[0030] Figure 7 It is the plane schematic view of surface wrinkle of outer waist circumference layer in the embodiment of the utility model;

[0031] Mark number explanation in drawing: 1-paper diaper body, 2-waist circumference part, 21-front waist circumference, 22-side waist circumference, 23-back waist circumference, 11-face layer, 12-absorbing body, 13-bottom film, 14-abdominal circumference part, 15-hip circumference part, 16-prevent side leakage area, 17-leakage prevention separation edge, 24-first elastic area, 25-second elastic area, 241-non-woven fabric and 242-elastic net, 251-outer waist circumference layer, 252-elastic material layer, 253-inner waist circumference layer, 2511-wrinkle, L-wrinkle length, W-wrinkle width, 2521-fine denier rubber, 131-highly breathable micropore, 161-elastic band, 171-outer three-dimensional protective circumference layer, 172-inner three-dimensional protective circumference layer;221-left waist paste, 222-right waist paste, 211-elastic adjusting area, 132-urine indication strip. DETAILED DESCRIPTION

[0032] The embodiment of the utility model is:

[0033] Reference Figures 1 to 7The application discloses a baby diaper with an accordion elastic waistband and a protection function against injury, which comprises a diaper body 1 and a waistband part 2 connected with each other, wherein the waistband part 2 comprises a front waistband 21, a side waistband 22 and a back waistband 23, the diaper body 1 comprises a surface layer 11, an absorbent body 12 and a bottom film 13, the diaper body 1 further comprises an abdominal circumference part 14 and a hip circumference part 15, the absorbent body 12 is defined as having a longitudinal direction along a length direction and a transverse direction along a width direction, the surface layer 11, the absorbent body 12 and the bottom film 13 extend outwardly on both sides of the transverse direction to form a side leakage prevention area 16, and a leakage prevention barrier 17 is arranged on the side leakage prevention area 16; the waistband part 2 has a width of 3 cm along the longitudinal direction, the waistband part 2 comprises a first elastic area 24 and a second elastic area 25 from top to bottom, the first elastic area 24 comprises non-woven fabrics 241 and elastic nets 242, the elastic nets 242 are wrapped between the non-woven fabrics 241, and the elastic nets 242 are formed in a net structure by high-elasticity fiber weaving; the second elastic area 25 comprises an outer waistband layer 251, an elastic material layer 252 and an inner waistband layer 253, the outer waistband layer 251 is provided with longitudinal wrinkles 2511 on the surface, the length L of each of the wrinkles 2511 is 30 mm, and the width W of each of the wrinkles 2511 is 10 mm, and the outer waistband layer 251, the elastic material layer 252 and the inner waistband layer 253 are point-welded by ultrasonic waves.

[0034] Specifically, the stretching ratio of the waistband part 2 is greater than the stretching ratio of the hip circumference part 15, the stretching ratio of the waistband part is 1.8 times, and the stretching ratio of the hip circumference part is 1.4 times; the elastic material layer 252 is a fine denier rubber 2521, the direction of the fine denier rubber 2521 is transverse, the number of the fine denier rubber 2521 is 12, the denier of the fine denier rubber 2521 is 70D, and the interval between adjacent fine denier rubbers 2521 is 5 mm; the outer waistband layer 251 and the inner waistband layer 253 are SS spun-bond non-woven materials, the unit area mass of the spun-bond non-woven material is 18 g / m 2 ; the bottom film 13 is a PE breathable bottom film, the bottom film 13 is provided with a plurality of high-breathability micropores 131, and the diameter of the high-breathability micropores 131 is 10 μm; the side leakage prevention area 16 is provided with a leg-adapting elastic band 161, and the leg-adapting elastic band 161 is an elastic spandex filament; the hydrostatic pressure of the leakage prevention barrier 17 is 150 mmH2O, the unit area mass of the leakage prevention barrier 17 is 15 g / m 2 , and the leakage prevention barrier 17 comprises an outer three-dimensional protective circumference layer 171 and an inner three-dimensional protective circumference layer 172; the side waistband 22 is provided with a left waist sticker 221 and a right waist sticker 222, the front waistband 21 is provided with a tightness adjusting area 211 for bonding the left waist sticker 221 and the right waist sticker 222, and the bottom film 13 is provided with a urine indication strip 132.

[0035] Although the utility model is specifically shown and introduced in combination with the preferred embodiments, it should be understood by those skilled in the art that various changes can be made to the utility model in form and details without departing from the spirit and scope of the utility model defined in the appended claims, and all of them are within the protection scope of the utility model.

Claims

1. A non-chafing baby diaper with an accordion elastic waistband, comprising a diaper body and a waistband part connected to each other, the waistband part comprising a front waistband, side waistbands and a back waistband, the diaper body comprising a topsheet, an absorbent body and a backsheet, the diaper body further comprising an abdominal circumference part and a hip circumference part, the absorbent body being defined as having a longitudinal direction along a length direction and a transverse direction along a width direction, the topsheet, the absorbent body and the backsheet extending outwardly on both sides of the transverse direction to form side leakage prevention zones, the side leakage prevention zones being provided with leakage prevention cuffs; the waistband part comprising a first elastic zone and a second elastic zone from top to bottom, characterized in that: The waist circumference part has a longitudinal width of 3 cm or more, the first elastic region comprises a non-woven fabric and an elastic net, the elastic net is wrapped between the non-woven fabrics, and the elastic net is a net structure formed by weaving high-elasticity fibers; The second elastic region comprises an outer waist circumference layer, an elastic material layer and an inner waist circumference layer, the outer waist circumference layer is provided with longitudinal wrinkles on the surface, each of the wrinkles has a length L of 30 mm or more and a width W of 10 mm or less, and the outer waist circumference layer, the elastic material layer and the inner waist circumference layer are point-welded by ultrasonic waves.

2. The injury-preventing baby diaper of accordion type elastic waistline according to claim 1, characterized in that, The waist circumference part has a stretch ratio greater than that of the hip circumference part, the stretch ratio of the waist circumference part is 1.8-2.0 times, and the stretch ratio of the hip circumference part is 1.3-1.4 times.

3. The injury-preventing baby diaper of accordion type elastic waistline according to claim 1, characterized in that, The elastic material layer is a fine-denier rubber cord, the fine-denier rubber cord has a horizontal direction, the number of the fine-denier rubber cords is 10-220, the denier of the fine-denier rubber cord is 70-200D, and the distance between adjacent fine-denier rubber cords is 1-10 mm.

4. The injury-preventing baby diaper of accordion type elastic waistline according to claim 1, characterized in that, The outer waistline layer and the inner waistline layer are SS, SSS or SSSS spunbond nonwoven material with a unit area mass of 10-20 g / m 2 .

5. The injury-preventing baby diaper of accordion type elastic waistline according to claim 1, characterized in that, The bottom film is a PE breathable bottom film, the bottom film is provided with a plurality of high-breathability micropores, and the high-breathability micropores have a diameter of 0.0004-20 μm.

6. The injury-preventing baby diaper of accordion type elastic waistline according to claim 1, characterized in that, The side leakage prevention region is provided with a leg-adhering elastic band, and the elastic band is an elastic spandex filament.

7. The injury-preventing baby diaper of accordion type elastic waistline according to claim 1, characterized in that, The water pressure head of the leakage-proof partition is ≥150mmH2O, and the mass per unit area is 13-18g / m 2 .

8. The injury-preventing baby diaper of accordion type elastic waistline according to claim 1, characterized in that, The leakage prevention barrier comprises an outer three-dimensional containment layer and an inner three-dimensional containment layer.

9. The injury-preventing baby diaper of accordion type elastic waistline according to claim 1, characterized in that, The side waist circumference is provided with a left waist sticker and a right waist sticker, and the front waist circumference is provided with a tightness adjusting area for bonding the left waist sticker and the right waist sticker.

10. The injury-preventing baby diaper of accordion type elastic waistline according to claim 1, characterized in that, The bottom film is provided with a urine indication strip.

Citation Information

Patent Citations

  • Pull-ups with soft waist structure

    CN210158797U

  • Trousers-shaped paper diaper with comfortable waistline

    CN218187109U