CN216676131U - Diaper with flexible waistline - Google Patents

Abstract

The utility model discloses a diaper with a flexible waistline, wherein a waist component comprises a composite telescopic part in a waist area and a sleeved telescopic part in a waist opening area; the composite expansion part and the sleeved expansion part are integrally formed, and the sleeved expansion part is close to the waist opening; the composite expansion part comprises an inner layer sheet, an outer layer sheet and a first elastic body compounded between the inner layer sheet and the outer layer sheet; the suit pars contractilis including built-in flexure strip component and the cavity body that holds the flexure strip component, and the flexure strip component and inlayer sheet integrated into one piece, the cavity body and outer sheet integrated into one piece. The diaper provided by the utility model has the advantages that the composite expansion part and the sleeved expansion part provide stretchability for the diaper, the composite expansion part enables the diaper body to envelop a human body and provide more comfortable fit for a wearer, the sleeved expansion part provides a waistband function for the diaper body, so that the diaper body can have higher stretching force and can be prevented from sliding downwards, the expansion part in the sleeve is isolated from the skin of the human body by the outer layer sheet, and the waist area is softer and more fit.

Description

Diaper with flexible waistline

Technical Field

The utility model relates to the technical field of disposable sanitary products, in particular to a diaper with a flexible waistline.

Background

Disposable absorbent articles for personal care in daily life, such as diapers, baby diapers, incontinence pants, sanitary napkins, panty liners, menstrual care pants and the like, are well known in the art for absorbing and retaining fluids and other bodily discharges. Some absorbent articles (such as pant-type absorbent wearing articles) have been proposed in which an elastic body is applied to the front and back side portions of the absorbent main body of the product formed by two side sheets, an absorbent main body and a back sheet in order to enhance the fit of the absorbent article to the body. In terms of the manner of forming the back sheet, there are roughly two categories, namely: a three-piece pants-type diaper having the absorbent main body, the front waist panel and the rear waist panel, and a two-piece pants-type diaper comprising the absorbent main body and an outer cover having an elastic function at the waist.

However, it is common practice to add elastic strands between the outer sheet and the inner sheet of the outer cover layer, and fix the elastic members between the two sheets of the outer cover layer by applying hot melt adhesive to the elastic strands. The waist opening area of the waist feature is typically stretched most during use and the elastic strands are also relatively densely spaced to improve body fit and to prevent the pant body from coming loose when worn. However, the contraction of the elastic strands in the waist-mouth region causes the inner sheet and the outer sheet to bulge outward to form wrinkles, the densely-packed wrinkles often cause wrinkle marks on the skin of the user when the elastic strands are applied, and particularly, the elastic strands are excessively stretched, and they may exert a great pressure on the skin, thereby being very easily harmful to the skin in a stretched state, and reducing customer satisfaction.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a diaper having a flexible waist to solve the above-mentioned problems of the related art.

To achieve the above objects, the present invention provides a diaper having a flexible waist circumference, including but not limited to diapers (for infants and toddlers prior to toilet training), training pants, sport pants, adult incontinence pants or menstrual care pants, for example. The technical scheme adopted by the utility model is as follows: a diaper with flexible waistline comprises a waist component, wherein the waist component comprises a composite expansion part in a waistline area and a sleeved expansion part in a waist opening area; the composite expansion part and the sleeved expansion part are integrally formed, and the sleeved expansion part is close to the waist opening; the composite expansion part comprises an inner layer sheet, an outer layer sheet and a first elastic body compounded between the inner layer sheet and the outer layer sheet; the sleeved telescopic part comprises an internal elastic sheet member and a cavity body for accommodating the elastic sheet member, the elastic sheet member and the inner layer sheet are integrally formed, the cavity body and the outer layer sheet are integrally formed, and the elastic sheet member is arranged in the cavity body;

preferably, the first elastic body arranged in the composite expansion part is an elastic thread body, and the elastic thread body is stretched from one side edge of the waist area to the other side edge, is parallel to each other and is distributed at intervals along the longitudinal direction.

Preferably, the elastic sheet member includes an inner sheet and a second elastic body, the second elastic body is adjacent to the first elastic body and is arranged on the opposite surface of the inner sheet to the first elastic body, the inner sheet is folded along the edge of the second elastic body, the second elastic body is bonded with the inner sheet by coating hot melt adhesive on the surface of the second elastic body, and the two side surfaces of the elastic sheet member are not fixed with the inner cavity of the cavity except for being bonded with the waist-side joint part.

Preferably, the elastic sheet member comprises an inner layer sheet and a second elastic body, the second elastic body is close to the first elastic body and is arranged on the opposite surface of the inner layer sheet to the first elastic body, the second elastic body is laid on the edge of the inner layer sheet, the second elastic body is bonded with the inner layer sheet by coating hot melt adhesive on the surface of the second elastic body, and the elastic sheet member is bonded with the cavity body through the hot melt adhesive on the surface of the second elastic body.

Preferably, the second elastomer is an elastic thread or an elastic film or an elastic fabric or an elastic laminate.

The composite stretch in the waistline region provides overall elasticity to the diaper and the ability to help the diaper to be pulled up for the wearer to wear.

In one aspect, the two side surfaces of the built-in elastic sheet component of the suit expansion part are not fixed with the inner cavity of the cavity body formed by the outer sheet except for the joint part of the waist side surface, when the waist is expanded and contracted, the folds formed by the expansion and contraction of the built-in elastic sheet component do not directly act on the skin of the human body, but are isolated from the skin of the human body through the cavity formed by the outer sheet, so that the soft appearance is provided, and the use comfort is improved.

In another aspect, the built-in elastic sheet member of the sleeved expansion part is fixed with the cavity formed by the outer sheet at the two end parts, and one side of the built-in elastic sheet member for fixing the elastic body is connected with the inner cavity of the cavity formed by the outer sheet, so that the sleeved expansion part avoids the possibility of uneven local thickness caused by asynchronous expansion of the outer layer cavity and the inner layer expansion body in the use process, and the appearance of the waistline can be improved.

But for the urine trousers provide stretchability through compound pars contractilis and suit pars contractilis, compound pars contractilis makes the trousers body envelope human, for the wearer provides more comfortable laminating nature, the suit pars contractilis provides the function of waistband for the trousers body, makes it can have higher tensile force, prevents that the trousers body from gliding, the internal integument of expansion in the suit is kept apart with human skin by outer sheet, the fold of interior expansion is not directly acted on human skin, the waist region has more softness and laminating nature.

The utility model has the technical effects and advantages that:

the present invention achieves a significant improvement in diaper comfort through a new construction of the waist feature of the diaper having a composite stretch including a waistline region and a fitted stretch including a waist opening region. The composite stretch includes an inner sheet and an outer sheet with an elastomer disposed therebetween. The suit expansion part comprises an internal elastic sheet member and a cavity body for accommodating the elastic sheet member, the elastic sheet member is formed by compounding an inner layer sheet material with an elastic body, and the cavity is folded from the outer layer sheet material to the inner layer sheet material and is jointed with the waist body part. Through compound pars contractilis and suit pars contractilis for the urine trousers provide stretchability, compound pars contractilis makes the trousers body can the envelope human body, provide more comfortable laminating nature for the wearer, the suit pars contractilis provides the function of waistband for the trousers body, make it can have higher tensile force, prevent the trousers body gliding, thereby the flexure strip component in the suit pars contractilis is kept apart with human skin by outer sheet parcel, the fold of flexure strip component is not direct action in human skin, the risk of fold to skin oppression has been slowed down, make the waist region have more softness and laminating nature.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic view of the present invention in an expanded plan configuration.

Fig. 3 is a longitudinal cross-sectional view of fig. 2.

Fig. 4 is a cross-sectional view of another embodiment of the present invention shown in fig. 2.

In the figure: 1. an absorbent main body; 11. an absorbent core; 3. a joint portion; 4. the waist is opened; 5. a leg opening; 6. a composite expansion part; 7. sleeving a telescopic part; 8. an elastic sheet member; 9. a cavity body; 10. an elastic strand; 2. an outer cladding layer; 21. an outer sheet; 22. an inner sheet; 23. a first elastic body; 24. a second elastomer; A. a ventral portion; B. a back side portion; C. a crotch part; a1, ventral waist edge; b1, back waist and mouth.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The utility model provides a diaper with a flexible waist circumference as shown in figures 1-4,

first, as shown in fig. 2, a schematic plan view of a diaper developed to show an inner surface of the diaper facing a wearer when the diaper is worn, having a transverse direction and a longitudinal direction, includes an absorbent main body 1 having an absorbent core 11 and an outer cover 2 joined to a non-skin surface side of the absorbent main body 1, the absorbent core 11 facilitating absorption of urine, the outer cover 2 including three portions of a stomach-side portion a, a back-side portion B and a crotch portion C, the crotch portion C being connected between the stomach-side portion a and the back-side portion B.

As shown in FIG. 1, which is a perspective view of the disposable diaper of the present invention, the longitudinal end of the abdomen-side portion A of the outer cover 2 has an abdomen-side waist opening edge a1, and the longitudinal end of the back-side portion B thereof has a back-side waist opening B1, the outer cover 2 is folded in half longitudinally so that the abdomen-side waist opening edge a1 and the back-side waist opening edge B1 are aligned, and a waist portion assembly having a waist opening 4 and a pair of leg openings 5 is formed by a pair of side joint portions 3 which are fused by heat pressing or ultrasonic waves.

As shown in fig. 1 and 2, the lumbar assembly has a composite stretch portion 6 including a lumbar region and a fitted stretch portion 7 including a waist region, the composite stretch portion 6 and the fitted stretch portion 7 are integrally connected, and the fitted stretch portion is located near the lumbar opening 4.

FIG. 3 is a longitudinal sectional view of FIG. 2, in which the outer covering layer 2 comprises an inner layer sheet 22 and an outer layer sheet 21, and in the composite stretch portion 6, the first elastic body 23 is compounded between the inner layer sheet 22 and the outer layer sheet 21 through hot melt adhesive, and stretched from one side edge of the waistline region to the other side edge, and distributed in parallel and at intervals, and the contraction of the first elastic body 23 drives the covering material to contract together, so as to have the capability of wrapping the body when worn; in the crotch region C, the elastic strands 10 are distributed along the edges of the leg openings 5, so that the leg openings can be shrunk when the elastic strands are shrunk, the shrunk leg openings are tightly attached to the skin when the elastic strands are worn, the wearing feeling is improved, and meanwhile, secondary protection is provided for side leakage.

As shown in fig. 3, the telescopic part 7 includes an internal elastic sheet member 8 and a cavity 9 for accommodating the elastic sheet member 8, the elastic sheet member 8 and the inner sheet 22 are integrally formed, the cavity 9 is folded inwards from the end of the outer sheet 21 and is bonded to the composite telescopic part 6, and the elastic sheet member 8 is disposed inside the cavity 9.

First embodiment, as shown in fig. 3, the elastic sheet member 8 includes an inner sheet 22 and a second elastic body 24, the second elastic body 24 is adjacent to the first elastic body 23 and is disposed on the opposite side of the inner sheet 22 from the first elastic body 23, the inner sheet 22 wraps the second elastic body 24 along the edge of the second elastic body 24, and the second elastic body 24 is bonded to the inner sheet 22 by coating a hot melt adhesive on the surface of the second elastic body 24, whereby both side surfaces of the elastic sheet member 8 are not fixed to the inner cavity of the hollow body 9 except for the joining portion 3 to the waist-side joining portion.

The second elastomer 24 may be formed from a variety of elastomeric materials including elastomeric strands or strips or films of natural rubber, synthetic rubber, or thermoplastic elastomeric polymers or elastomeric textiles.

Second embodiment, as shown in fig. 4, the elastic sheet member 8 includes an inner sheet 22 and a second elastic body 24, the second elastic body 24 is adjacent to the first elastic body 23 and is disposed on the opposite surface of the inner sheet 22 to the first elastic body 23, and is laid on the edge of the inner sheet 22, the second elastic body 24 is bonded to the inner sheet 22 by coating a hot melt adhesive on the surface of the second elastic body 24, the elastic sheet member 8 is bonded to the cavity 9 by the hot melt adhesive on the surface of the second elastic body 23, and thus both side surfaces of the elastic sheet member 8 are fixed to the cavity side of the cavity 9 in addition to the waist-side joint portion 3.

The elastic sheet member 8 is wrapped by the inner sheet 22 to form the second elastic body 24, so that the elastic sheet member 8 and the composite expansion part 6 are integrally connected, the integrity of the trousers body is better, the manufacture is more convenient, and the equipment process is simplified.

The composite expansion part 6 is formed by compounding a first elastic body 23 between an inner layer sheet 22 and an outer layer sheet 21, the contraction of the first elastic body 23 drives the outer coating material to contract together to form an elastic expansion coat, and the composite expansion part provides a wearable performance for a wearer; the elastic sheet member 8 has the function of a waistband, the hollow cavity 9 has the appearance like the waistline of underwear, and the pressure of the wrinkles caused by the expansion and contraction of the elastic sheet member 8 on the skin is released through the hollow cavity 9, so that the comfortable experience is provided for a wearer.

On the other hand, in the set expansion part, the elastic sheet member 8 and the cavity 9 are not connected with the inside of the cavity 9 except for the sealing parts at both ends, the set expansion part 7 is relatively fluffy at some times, the sense of thickness is presented at the waistline, and the bonding with the cavity 9 is added on one side of the elastic sheet member 8 to improve the appearance of the set expansion part.

With respect to the pull-on pant-like configuration diaper as shown in fig. 2, the positional relationship of the respective elements is generally assumed, the outer cover material 2 provides an outer garment of the pant body, the absorbent main body 1 is located in the crotch region of the outer garment, and longitudinally connects the front abdominal region a1 and the rear abdominal region B1, and the absorbent main body 1 has the ability to rapidly absorb body exudates and restrict the flow thereof, and constitutes a wearable absorbent article together with the outer cover material 2.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.

Claims (7)

1. A diaper with a flexible waist comprises a waist component, and is characterized in that: the waist component comprises a composite telescopic part (6) in the waist area and a sleeved telescopic part (7) in the waist opening area;

the composite telescopic part (6) and the sleeved telescopic part (7) are integrally formed, and the sleeved telescopic part (7) is close to the waist opening (4);

the composite expansion part (6) comprises an inner layer sheet (22), an outer layer sheet (21) and a first elastic body (23) compounded between the inner layer sheet and the outer layer sheet;

the suit expansion part (7) comprises a built-in elastic piece member (8) and a cavity body (9) accommodating the elastic piece member (8), the elastic piece member (8) and an inner layer sheet (22) are integrally formed, the cavity body (9) and an outer layer sheet (21) are integrally formed, and the elastic piece member (8) is arranged in the cavity body (9).

2. A diaper having a flexible waist circumference according to claim 1, wherein the first elastic body (23) provided in the composite stretchable and contractible portion (6) is a body elastic thread stretched from one side edge to the other side edge of the waistline region, and is arranged in parallel with each other and spaced apart from each other in the longitudinal direction.

3. A diaper having a flexible waist circumference according to claim 1, wherein said elastic sheet member (8) comprises an inner sheet (22) and a second elastic body (24), the second elastic body (24) is disposed adjacent to the first elastic body (23) and on the opposite side of the inner sheet (22) from the first elastic body (23), the inner sheet (22) is folded over the second elastic body (24) along the edge of the second elastic body (24), and the second elastic body (24) is bonded to the inner sheet (22) by applying a hot melt adhesive to the surface of the second elastic body (24).

4. A diaper having a flexible waist circumference according to claim 1, wherein said elastic sheet member (8) comprises an inner sheet (22) and a second elastic body (24), the second elastic body (24) is disposed adjacent to the first elastic body (23) and on the opposite side of the inner sheet (22) from the first elastic body (23), and is laid on the edge of the inner sheet (22), and the second elastic body (24) is bonded to the inner sheet (22) by applying a hot melt adhesive to the surface of the second elastic body (24).

5. A diaper having a flexible waist circumference according to claim 3, wherein both side surfaces of said elastic sheet member (8) are not fixed to the inner cavity of the hollow body (9) except for the waist circumference side joint portion (3).

6. A pant diaper having a flexible waist circumference according to claim 4, wherein the elastic sheet member (8) is bonded to the hollow body (9) by means of a hot melt adhesive on the surface of the second elastic body (24).

7. A pant diaper having a flexible waist circumference according to any of claims 3-6, wherein the second elastomeric (24) material is selected from strands or tapes or films of natural rubber, synthetic rubber or thermoplastic elastomeric polymers or elastic textiles.

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