3D (three-dimensional) tailored elastic close-fitting paper diaper

Abstract

The utility model relates to the technical field of paper diaper products, in particular to a three-dimensional (3D) tailored elastic close-fitting paper diaper which solves the problem that an existing paper diaper product is insufficient in fitting degree, the paper diaper comprises a surface layer, an absorption core and a bottom layer which are arranged in a stacked mode, and two front waist filling pieces are symmetrically distributed on the two sides of the symmetric center of a front waist area. Each front waist filling sheet is provided with a front waist end attached to the front waist end part and front waist inclined side ends which are distributed by extending downwards and inwards from the two transverse sides in an inclined manner; a rear waist filling piece arranged at the symmetric center is located in the rear waist area and provided with a rear waist transverse line end close to the end of the rear waist area and a rear waist arc line end close to one side of the crotch area.

Description

Technical Field

[0001] This utility model relates to the technical field of diaper products, specifically to a 3D three-dimensional cut elastic close-fitting diaper. Background Technology

[0002] Existing disposable diapers typically incorporate elastic bands on one or both sides of the waistband to prevent slippage during wear. However, the tightness of these elastic bands significantly impacts wearing comfort, and a single elastic structure may not provide sufficient overall fit. As illustrated in Chinese Patent No. CN 202537782U, an easy-to-pull-fit disposable diaper is proposed, comprising an abdominal area, a crotch area, and a buttock area. The abdominal and buttock areas are located at opposite ends of the crotch area. Elastic tabs are symmetrically arranged on both sides of the abdominal area, with Velcro fasteners attached to the tabs. Similarly, elastic waistbands connected to the Velcro fasteners are symmetrically arranged on both sides of the buttock area.

[0003] This technical solution designs a combination of a magic waistband and elastic waist tabs to improve the fit of diapers. However, while this structure improves the overall elasticity of the diaper waistband, the consumer's waist is not a regular shape, leaving gaps in the groin and inner thigh areas. This multi-dimensional elastic structure only increases the elasticity of the entire waistband and cannot accurately fill these gaps, resulting in insufficient fit. Utility Model Content

[0004] Therefore, this utility model provides a 3D three-dimensional cut elastic close-fitting diaper, which solves the problem of insufficient fit of existing diaper products.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution:

[0006] A 3D three-dimensional cut elastic close-fitting diaper is defined as having a longitudinal direction in the length direction and a transverse direction in the width direction when the diaper is flattened. It is divided into a front waist area, a crotch area and a back waist area according to different wearing positions. The diaper includes a top layer, an absorbent core and a bottom layer stacked together. Two front waist pads are symmetrically arranged on both sides of the symmetrical center of the front waist area. Each front waist pad has a front waist end that fits the front waist end and a front waist oblique side end that extends obliquely downward and inward from both transverse sides.

[0007] The lower back area has a lower back padding sheet located at the center of symmetry, the lower back padding sheet having a horizontal lower back end near the end of the lower back area and a curved lower back end near the crotch area.

[0008] Preferably, the front waist padding and the rear waist padding are made of elastic non-woven fabric.

[0009] Preferably, the front waist padding and the rear waist padding have dotted ventilation holes.

[0010] Preferably, the front waist padding and the rear waist padding are made of sponge.

[0011] Preferably, the front waist padding sheet and the rear waist padding sheet are absorbent sheets.

[0012] Preferably, elastic ear pads are provided on both sides of the lower back area, and the elastic ear pads are provided with magic waist buckles.

[0013] By adopting the aforementioned technical solution, the beneficial effects of this utility model are:

[0014] This technical solution involves a structural design for the waistband of diaper products, adding front and back waist padding pieces. These pieces can appropriately fill the groin and leg area when the diaper is worn, avoiding gaps and ensuring a good fit. The front and back waist padding pieces are designed with corresponding shapes to fully fill gaps while avoiding any foreign body sensation at the edges due to increased thickness. The edges are cut with full consideration of the human body's curves, resulting in a high degree of fit and comfort. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the unfolded structure of the diaper according to an embodiment of the present invention;

[0016] Figure 2 This is a schematic diagram of the molding process of the front waist filler and the rear waist filler in this embodiment of the present invention.

[0017] Attached reference numerals: 1. Absorbent core; 2. Bottom layer; 3. Front waist padding; 31. Front waist end; 32. Front waist sloping side end; 4. Back waist padding; 41. Back waist horizontal line end; 42. Back waist curved line end; 5. Ventilation hole; 6. Elastic ear pads; 61. Magic waist buckle. Detailed Implementation

[0018] The following will describe the implementation of this utility model in detail with reference to specific embodiments, so that the process of how this utility model uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0019] Example

[0020] refer to Figure 1A 3D three-dimensional cut elastic close-fitting diaper is defined as having a longitudinal direction in the length direction and a transverse direction in the width direction when the diaper is flattened. It is divided into a front waist area, a crotch area and a back waist area according to different wearing positions. The diaper includes a top layer, an absorbent core 1 and a bottom layer 2 stacked together. Two front waist filling pieces 3 are symmetrically arranged on both sides of the symmetrical center of the front waist area. Each front waist filling piece 3 has a front waist end 31 that fits the front waist end 31 and a front waist oblique side end 32 that extends obliquely downward and inward from both transverse sides.

[0021] The back waist area has a back waist padding sheet 4 located at the center of symmetry. The back waist padding sheet 4 has a horizontal back waist end 41 near the end of the back waist area and a curved back waist end 42 near the crotch area. This technical solution is designed for the waistband of diaper products by adding a front waist padding sheet 3 and a back waist padding sheet 4. When the diaper is worn, it can fill the groin and leg area accordingly, avoiding gaps and ensuring the fit of the diaper product. The front waist padding sheet 3 and the back waist padding sheet 4 are adapted to each other with corresponding shapes. While fully filling the gaps, it avoids the feeling of foreign objects at the edges caused by the increased thickness. The cut edges fully consider the curvature of the human body, resulting in a high fit and strong comfort.

[0022] In production, such as Figure 2 As shown, the two front waist filling sheets 3 and the back waist filling sheet 4 are designed as a single piece. Considering the layout, the shaded area in the figure is the filling sheet used for single diaper products. After being guided to the required position by a series of guides, it is bonded to the bottom layer 2 and the top layer.

[0023] In this embodiment, the front waist pad 3 and the back waist pad 4 are made of elastic non-woven fabric. Elastic non-woven fabric has a certain degree of elasticity and is one of the choices for elastic waistbands in traditional diaper products. After the diaper product is worn, it forms a 3D three-dimensional shape that fits the human body according to the cut shape. However, the breathability of elastic non-woven fabric is relatively poor. Therefore, under this material selection, a structure with local distribution after cutting is designed to ensure the breathability of the waistband of the diaper product as much as possible. At the same time, before the material is cut, dotted ventilation holes 5 can also be opened on the front waist pad 3 and the back waist pad 4. The ventilation holes 5 can further ensure the breathability of the waistband.

[0024] In this embodiment, elastic ear loops 6 are provided on both sides of the lower back area, and magic waist buckles 61 are provided on the elastic ear loops 6. Structurally, due to the use of a locally elastic waistband, the design of adding elastic ear loops 6 and magic waist buckles 61 can form an elastic structure around the waistband, ensuring sufficient elasticity of the entire waistband when worn, so as to avoid displacement or deflection after movement, and to maintain the gaps at various positions of the waistband, thereby improving the positional accuracy of the front waist padding 3 and the back waist padding 4.

[0025] Correspondingly, after ensuring elasticity at the waist (for example, by adding an elastic structure between the surface layer and the bottom layer 2, or by adding the aforementioned elastic ear loops 6 and magic waist buckles 61), the front waist filling sheet 3 and the back waist filling sheet 4 can also be made of sponge. Sponge has a softer texture and a greater thickness, which can increase the softness at the waist and has better breathability, further improving the comfort of the diaper product at the waist.

[0026] Similarly, some products now include a structure to prevent front and rear leakage, so the front waist filler 3 and the rear waist filler 4 can be liquid-absorbing sheets. The liquid-absorbing sheets can be commercially available products or online-formed structures with liquid-absorbing material sandwiched between two non-woven fabric base fabrics to achieve the function of preventing front and rear leakage and further increase the functionality of the product.

[0027] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims, and all such changes shall be within the scope of protection of the present invention.

Claims

1. A 3D three-dimensional cut-and-sew elastic panty-type diaper, defining a longitudinal direction of a length direction and a transverse direction of a width direction when the diaper is in a flat state, and being divided into a front waist region, a crotch region, and a back waist region according to different wearing positions, the diaper comprising a top layer, an absorbent core (1), and a bottom layer (2) arranged in a stack, characterized in that: two front waist filling pieces (3) are symmetrically arranged on both sides of a center of symmetry of the front waist region, each of the front waist filling pieces (3) has a front waist end (31) part abutting a front waist end, and a front waist oblique side end (32) extending and distributed from both transverse sides obliquely downward and inward; a back waist filling piece (4) is arranged in the back waist region, the back waist filling piece (4) has a back waist horizontal line end (41) close to an end of the back waist region, and a back waist arc line end (42) close to a side of the crotch region. The front waist filling piece (3) and the back waist filling piece (4) are elastic non-woven fabrics. Ventilation holes (5) are arranged on the front waist filling piece (3) and the back waist filling piece (4) in a dot matrix distribution.

2. The 3D cut-and-sew paper diaper of claim 1, wherein: The front waist filling piece (3) and the back waist filling piece (4) are sponge bodies.

3. The 3D cut-and-sew paper diaper of claim 1, wherein: The front waist filling piece (3) and the back waist filling piece (4) are liquid-absorbing sheets.

4. The 3D cut-and-sew paper diaper of claim 1, wherein: Elastic ear patches (6) are arranged on both transverse sides of the back waist region, and the elastic ear patches (6) are provided with magic waist buckles (61).

5. The 3D cut-and-sew paper diaper of claim 1, wherein: ​ 6. A 3D cut and trim stretch nappy according to any one of claims 1 to 5, wherein: ​

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