Transverse full-elastic paper diaper base material and shorts type paper diaper comprising same

Abstract

The transverse full-elastic paper diaper base material comprises an outer-layer non-woven fabric and an inner-layer non-woven fabric which are overlapped with each other, front waist elastic strips are arranged in the front end of the base material to form a front waist area, and rear waist elastic strips are arranged in the rear end of the base material to form a rear waist area. A crotch area is formed between the front waist area and the rear waist area, and elastic strips are further arranged between the outer-layer non-woven fabric and the inner-layer non-woven fabric of the crotch area. The transverse full-elastic shorts type paper diaper is made of the paper diaper base material, and an absorption core body is further attached to the crotch area of the base material in a covering mode. According to the utility model, when the outer cover of the two-piece shorts type paper diaper is manufactured, the elastic strips are completely arranged between the outer-layer non-woven fabric and the inner-layer non-woven fabric and in the crotch region, so that the whole shorts type paper diaper has good retraction force on the front waist, the rear waist and the crotch, the wearing fitness is better, and side leakage is not easy to occur.

Description

Technical Field

[0001] The utility model relates to the technical field of daily necessities, in particular to a transversely fully elastic diaper substrate and a shorts-type diaper comprising the same. Background Art

[0002] Briefs diapers are primarily made of non-woven fabric, super-absorbent resin, and elastic spandex, bonded together with hot-melt adhesive. They are worn like regular briefs, offering a better fit than regular diapers and are worn in the same manner. Briefs diapers are primarily used by infants and toddlers aged 6 months and older, when they begin to crawl and walk. They resemble briefs.

[0003] There are two structures of shorts-style baby diapers, as follows:

[0004] One type is a three-piece diaper with an elastic front waist area, a core area with urine absorption capacity, and an elastic back waist area. The front waist elastic area is composed of a three-layer structure consisting of an outer non-woven fabric, elastic strips, and an outer non-woven fabric. The back waist elastic area is identical in structure to the front waist elastic area, but slightly longer in length. The front and back ends of the core are bonded to the front and back waist areas, respectively, with an adhesive. After being folded in half, the left and right sides of the front and back waist areas are heat-welded (ultrasonic welding) to form a wearable shorts-style diaper. Three-piece shorts-style baby diapers only provide coverage at the waist, leaving the buttocks and crotch areas less secure and prone to urine leakage.

[0005] Another type of two-piece shorts-style baby diaper has elastic front and back waist areas that are no longer separated on either side of the core. Instead, it consists of a complete outer non-woven fabric + front waist elastic strips + back waist elastic strips + crotch elastic + inner non-woven fabric. These are first compounded and then cut to form the outer shell of the pants. The absorbent core is then attached to the outer shell. The outer non-woven fabric is folded over to cover both ends of the core. After being folded in half, the left and right sides of the front and back waist are heat-welded (ultrasonic-welded) to form a wearable shorts-style diaper. Two-piece shorts-style diapers offer stronger wrapping than three-piece diapers. The addition of crotch elastic prevents the shorts-style diaper from falling down after absorbing the diaper during wear, improving the wearing experience.

[0006] The shorts-type diapers in the prior art have the following defects: three-piece shorts-type diapers have weak coverage at the buttocks and crotch, which makes it easy to leak urine; existing two-piece shorts-type diapers have a certain coverage at the buttocks and crotch, but the fit is poor when worn. Utility Model Content

[0007] In order to overcome the shortcomings of the existing technology, the present invention provides a diaper base material with a transverse full elasticity that can effectively improve the wrapping and fit of the buttocks and crotch of shorts-type diapers and a shorts-type diaper including the same. To solve the above technical problems, the present invention provides the following technical solutions:

[0008] A transversely elastic diaper substrate comprises an outer non-woven fabric and an inner non-woven fabric stacked on top of each other; a front waist elastic strip is arranged inside the front end of the substrate to form a front waist region; a back waist elastic strip is arranged inside the back end of the substrate to form a back waist region; a crotch region is formed between the front and back waist regions; and an elastic strip is further arranged between the outer non-woven fabric and the inner non-woven fabric in the crotch region.

[0009] On the basis of adopting the above technical solution, the present invention can also adopt the following further technical solution:

[0010] The elastic strip in the crotch area fully covers the crotch area.

[0011] A crotch-lifting elastic band is arranged between the outer non-woven fabric and the inner non-woven fabric in the crotch area.

[0012] The stretching ratio of the elastic strip in the crotch area is 0.5 to 2.5 times.

[0013] The stretching ratio of the elastic strip in the crotch area is lower than that of the front waist elastic strip, and the stretching ratio of the elastic strip in the crotch area is lower than that of the back waist elastic strip.

[0014] The fiber fineness of the elastic strip in the crotch area is 20 dex to 940 dex.

[0015] The arrangement spacing of the elastic strips in the crotch area is 1mm~10mm.

[0016] The front waist elastic strip and the back waist elastic strip are both arranged between the outer non-woven fabric layer and the inner non-woven fabric layer.

[0017] Furthermore, the present invention also provides the following technical solutions:

[0018] A transversely elastic shorts-style diaper is made from the diaper base material described above, with an absorbent core attached to the crotch region of the base material. The elastic strips in the crotch region are cut into sections in the area where they overlap with the core, so that the elastic strips at the core position do not wrinkle the core and affect its absorption.

[0019] The left side of the front waist region of the substrate is connected to the left side of the back waist region, and the right side of the front waist region is connected to the right side of the back waist region to form the waistline of the diaper.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The utility model provides a complete arrangement of elastic strips in the crotch area between the outer non-woven fabric layer and the inner non-woven fabric layer when making a two-piece shorts-type diaper outer shell, in addition to conventional front waist elastic strips, back waist elastic strips and crotch-lifting elastic bands. This ensures that the entire shorts-type diaper has good retractive force in the front waist, back waist and crotch, making the diaper fit better and less prone to side leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The utility model is a schematic diagram of the substrate structure of a diaper substrate with full transverse elasticity and a shorts-type diaper including the same.

[0023] Figure 2 The utility model is a cross-sectional view of a laterally fully elastic diaper substrate and a crotch region of a shorts-type diaper substrate including the same.

[0024] Among them, there are an outer non-woven fabric 1, an inner non-woven fabric 2, an absorbent core 3, a front waist area 4, a back waist area 5, a crotch area 6, and an elastic strip 7. DETAILED DESCRIPTION

[0025] In conjunction with the accompanying drawings, a laterally fully elastic diaper substrate and a shorts-type diaper including the same provided by the present invention will be further described.

[0026] In this embodiment, a transversely fully elastic shorts-type diaper is provided, wherein the main body of the diaper is composed of an outer non-woven fabric 1, an inner non-woven fabric 2 and an absorbent core 3. The two ends of the diaper main body are folded in half and bonded together to form the waistline of the diaper.

[0027] Specifically, the left side of the front waist region 4 of the substrate is connected to the left side of the back waist region 5 , and the right side of the front waist region 4 is connected to the right side of the back waist region 5 , ultimately forming the waistline of the diaper.

[0028] Among them, the transversely fully elastic diaper substrate includes an outer non-woven fabric 1 and an inner non-woven fabric 2 overlapping each other, a front waist elastic strip is arranged inside the front end of the substrate to form a front waist area 4, and a back waist elastic strip is arranged inside the back end of the substrate to form a back waist area 5. The crotch area 6 is formed between the front waist area 4 and the back waist area 5, and an elastic strip 7 is also arranged between the outer non-woven fabric 1 and the inner non-woven fabric 2 in the crotch area 6.

[0029] Furthermore, the elastic strip 7 in the crotch region 6 completely covers the crotch region 6 .

[0030] Furthermore, a crotch-lifting elastic band is arranged between the outer non-woven fabric 1 and the inner non-woven fabric 2 in the crotch region 6 .

[0031] Furthermore, the stretching ratio of the elastic strip 7 in the crotch region 6 is 0.5 to 2.5 times.

[0032] Furthermore, the stretching ratio of the elastic strip 7 in the crotch region 6 is lower than that of the front waist elastic strip, and the stretching ratio of the elastic strip 7 in the crotch region 6 is lower than that of the back waist elastic strip.

[0033] Furthermore, the fiber fineness of the elastic strip 7 in the crotch region 6 is 20 dex to 940 dex.

[0034] Furthermore, the arrangement spacing of the elastic strips 7 in the crotch area 6 is 1 mm to 10 mm.

[0035] Furthermore, the front waist elastic strip and the back waist elastic strip are both arranged between the outer non-woven fabric 1 and the inner non-woven fabric 2 .

[0036] Furthermore, the elastic strip 7 in the crotch area 6 is cut into sections in the overlapping area with the absorbent core 3 by a cutter, so that the elastic strip 7 at the position of the absorbent core 3 will not wrinkle the absorbent core 3, thereby avoiding affecting the absorption of the absorbent core 3.

[0037] The present invention has been illustrated and described with reference to the preferred embodiments. However, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A transversely elastic diaper substrate comprising an outer nonwoven fabric and an inner nonwoven fabric stacked on top of each other, characterized in that A front waist elastic strip is arranged inside the front end of the substrate to form a front waist area, and a back waist elastic strip is arranged inside the back end of the substrate to form a back waist area. The crotch area is formed between the front waist area and the back waist area, and an elastic strip is also arranged between the outer non-woven fabric and the inner non-woven fabric in the crotch area.

2. The transversely elastic diaper substrate according to claim 1, characterized in that The elastic strip in the crotch area fully covers the crotch area.

3. The transversely elastic diaper substrate according to claim 2, characterized in that A crotch-lifting elastic band is arranged between the outer non-woven fabric and the inner non-woven fabric in the crotch area.

4. The transversely elastic diaper substrate according to claim 1, characterized in that The stretching ratio of the elastic strip in the crotch area is 0.5 to 2.5 times.

5. The transversely elastic diaper substrate according to claim 4, characterized in that The stretching ratio of the elastic strip in the crotch area is lower than that of the front waist elastic strip, and the stretching ratio of the elastic strip in the crotch area is lower than that of the back waist elastic strip.

6. The transversely elastic diaper substrate according to claim 1, characterized in that The fiber fineness of the elastic strip in the crotch area is 20 dex to 940 dex.

7. The transversely elastic diaper substrate according to claim 1, characterized in that The arrangement spacing of the elastic strips in the crotch area is 1mm~10mm.

8. The transversely elastic diaper substrate according to claim 1, characterized in that The front waist elastic strip and the back waist elastic strip are both arranged between the outer non-woven fabric layer and the inner non-woven fabric layer.

9. A transversely elastic shorts-type diaper, characterized in that The diaper is made of the diaper substrate according to any one of claims 1 to 8, wherein the crotch area of ​​the substrate is further covered with an absorbent core.

10. The laterally fully elastic shorts diaper according to claim 9, characterized in that The left side of the front waist region of the substrate is connected to the left side of the back waist region, and the right side of the front waist region is connected to the right side of the back waist region to form the waistline of the diaper.

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