Glue-free baby pull-ups

Abstract

The utility model relates to the field of disposable hygienic products, in particular to green and environment-friendly glue-free baby pull-ups with high absorption efficiency, which comprise a pull-ups body, the pull-ups body comprises an outer clothes layer and an absorber, and the outer clothes layer is sequentially provided with a front waistline area, a crotch area and a rear waistline area along the longitudinal direction. The absorber is arranged in the crotch area of the outer clothes layer, first sewing threads are composited on the two transverse sides of the absorber and the outer clothes layer through ultrasonic waves, and second sewing threads are composited on the two transverse side edges of the front waist area and the two transverse side edges of the rear waist area of the outer clothes layer through ultrasonic waves. The outer clothes layer comprises a waistline rubber band, an outer-layer non-woven fabric and an inner-layer non-woven fabric, the waistline rubber band is arranged between the outer-layer non-woven fabric and the inner-layer non-woven fabric, and the waistline rubber band is fixed through ultrasonic compounding to form a first sewing point.

Description

Technical Field

[0001] The utility model relates to the field of disposable sanitary products, in particular to a pair of glue-free baby pull-up pants. Background Art

[0002] Pull-up pants are different from other adhesive diaper series that need to be fixed with waist stickers. Pull-up pants look more like baby's small underwear. They can be put on with one pull, hence the name Pull-up pants. Baby pull-up pants are similar to underwear-style diapers. They are designed to be used as a transition between diapers and general underwear: they use the same materials and structure as diapers, but can be put on and taken off directly, and are more close-fitting and elastic than diapers. They are suitable for active babies, such as those who can roll over, sit alone, learn to crawl, or learn to walk. Usually, babies who wear size M diapers can choose pull-up pants. The biggest advantage is that they are easy to put on and take off. You can easily change diapers when the baby is moving around, without disturbing the baby's exploration and cognition. As the baby grows older, the baby's limbs become more and more active. From starting to roll over, to learning to sit, crawl, and walk, changing diapers becomes more and more challenging; babies at this stage are recognizing and exploring the world through playing. Uninterrupted play can help babies concentrate more and more, which is more conducive to cognitive development.

[0003] The structure of existing pull-up pants, such as Chinese patent application No. 201520559508.5, discloses a new type of pull-up pants, including a front waist, a rear waist and a composite diaper, the composite diaper is arranged at the crotch position between the front waist and the rear waist, the front waist and the rear waist are both provided with waist elastic bands, and the waist elastic bands are arranged at intervals from each other, the waist elastic bands of the front waist include a first outer waist elastic band and a first inner waist elastic band, the first outer waist elastic bands have 10 to 20 strands, the first inner waist elastic bands have 3 to 8 strands and are close to the crotch position, the waist elastic bands of the rear waist include a second outer waist elastic band and a second inner waist elastic band, the second outer waist elastic bands have 8 to 12 strands, the second inner waist elastic bands have 4 to 10 strands and are close to the crotch position. The arrangement of the elastic band at the waist is more suitable for infants and young children. According to the common body movements of infants and young children, the elastic band at the front waist is tight on the outside and loose on the inside, which is comfortable and breathable. The elastic band at the back waist is loose on the outside and tight on the inside, which fits the waist better and has a leak-proof effect.

[0004] However, in the preparation process of the pull-up pants disclosed above, the first waist elastic band, the second waist elastic band and the outer clothing layer, and the outer clothing layer and the composite diaper are glued together by spraying hot melt adhesive, which is not only poor in environmental protection, but also the spraying of glue reduces the water permeability between the material layers, thereby reducing the water absorption efficiency. Utility Model Content

[0005] Therefore, in view of the above problems, the utility model provides a pair of glue-free baby pull-up pants which are green, environmentally friendly and have high absorption efficiency.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A kind of glue-free baby pull-up pants, including a pull-up pants body, which is defined as a longitudinal direction extending along the length direction of the pull-up pants body and a transverse direction extending along the width direction thereof. The pull-up pants body includes an outer clothing layer and an absorbent body, and the outer clothing layer has a front waist area, a crotch area and a rear waist area in sequence along the longitudinal direction. The absorbent body is arranged in the crotch area of ​​the outer clothing layer, and the transverse sides of the absorbent body and the outer clothing layer are ultrasonically compounded with a first stitching line, and the transverse sides of the front waist area of ​​the outer clothing layer and the transverse sides of the rear waist area of ​​the outer clothing layer are ultrasonically compounded with a second stitching line, and the outer clothing layer includes a waist elastic band, an outer non-woven fabric and an inner non-woven fabric, and the waist elastic band is arranged between the outer non-woven fabric and the inner non-woven fabric. The waist elastic band is distributed in the front waist area and the back waist area between the non-woven fabrics, and the waist elastic band is fixed by ultrasonic composite to form a first stitching point, and the outer non-woven fabric, the waist elastic band and the inner non-woven fabric are fixed by the first stitching point, and the first stitching points are distributed at intervals along the extension direction of the waist elastic band, and the front waist area and the back waist area both include a first elastic area and a second elastic area distributed in sequence from the longitudinal outer end to the longitudinal middle, and the waist elastic band includes a first waist elastic band and a second waist elastic band, the first waist elastic band is distributed in the first elastic area, and the second waist elastic band is distributed in the second elastic area, and the spacing between two adjacent first waist elastic bands is smaller than the spacing between two adjacent second waist elastic bands.

[0008] Furthermore, the ratio of the longitudinal width of the first elastic region to the longitudinal width of the second elastic region is 1:2-6.

[0009] Furthermore, the outer garment layer also includes a crotch elastic band, which is arranged between the outer non-woven fabric and the inner non-woven fabric. The crotch elastic band is distributed in the crotch area, and the crotch elastic band is fixed by ultrasonic composite to form a second stitching point. The outer non-woven fabric, the crotch elastic band and the inner non-woven fabric are fixed by the second stitching point, and the second stitching points are distributed at intervals along the extension direction of the crotch elastic band.

[0010] Furthermore, the absorbent body includes a PE film, a core layer, a guide layer, a water-repellent non-woven fabric, a surface non-woven fabric and a three-dimensional protective elastic band. The surface non-woven fabric, the guide layer, the core layer and the PE film are stacked in sequence from top to bottom and are connected by hot pressing. The water-repellent non-woven fabric is distributed on both lateral sides of the surface non-woven fabric, and the lateral outer side of the water-repellent non-woven fabric and the outer clothing layer are ultrasonically composited with a third stitching line. The three-dimensional protective elastic band is arranged on the lateral inner layer of the water-repellent non-woven fabric and is fixed by ultrasonic composite to form a third stitching point. The third stitching points are spaced apart along the extension direction of the three-dimensional protective elastic band.

[0011] Furthermore, the crotch elastic band includes a first crotch elastic band near the front waist area and a second crotch elastic band near the back waist area, the first crotch elastic band and the second crotch elastic band are both trumpet-shaped structures, the opening of the first crotch elastic band faces the front waist area, and the opening of the second crotch elastic band faces the back waist area.

[0012] By adopting the above-mentioned technical scheme, the beneficial effect of the utility model is as follows: the glue-free baby pull-up pants, the absorbent body and the outer clothing layer are sewed and fixed by the first stitching line formed by ultrasonic compounding, and the front waist area and the rear waist area of ​​the outer clothing layer are sewed and fixed on both sides of the lateral direction by the second stitching line, and at the same time, the waist elastic band and the crotch elastic band are respectively fixedly connected to the outer non-woven fabric and the inner non-woven fabric of the outer clothing layer by the first stitching point and the second stitching point, so as to realize the interruption and compounding of the waist elastic band and the crotch elastic band. Compared with the traditional pull-up pants, the product is realized without using glue. The composite fixation is green and environmentally friendly, and when no glue is used, it can prevent glue from penetrating into the material of the pull-up pants, so that the material maintains a high water absorption efficiency; and by setting the first elastic zone and the second elastic zone with a width ratio of 1:2-6 in the front waist area and the back waist area, and arranging the first waist elastic band and the second waist elastic band with different intervals in the first elastic zone and the second elastic zone, the expansion and contraction dimensions of the front waist area and the back waist area in the width direction are different, which can be suitable for attachment to the baby's waist, improve the fit, and thus improve the comfort of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a front view structural schematic diagram of an embodiment of the utility model;

[0014] Figure 2 It is a schematic diagram of the top view of the structure of the embodiment of the utility model in the unfolded state;

[0015] Figure 3 It is a schematic diagram of the cross-sectional structure of the absorbent body in the embodiment of the utility model. DETAILED DESCRIPTION

[0016] The utility model is now further described in conjunction with the accompanying drawings and specific implementation methods.

[0017] The utility model embodiment is:

[0018] refer to Figure 1 , Figure 2 and Figure 3As shown, a kind of glue-free baby pull-up pants includes a pull-up pants body 1, and the length direction of the pull-up pants body 1 is defined as the longitudinal direction, and the width direction is defined as the lateral direction. The pull-up pants body 1 includes an outer clothing layer 11 and an absorbent body 12. The outer clothing layer 11 has a front waist area 101, a crotch area 102 and a back waist area 103 in sequence along the longitudinal direction. The absorbent body 12 is arranged in the crotch area 102 of the outer clothing layer 11, and the lateral sides of the absorbent body 12 and the outer clothing layer 11 are ultrasonically compounded with a first stitching line 2, and the lateral sides of the front waist area 101 of the outer clothing layer 11 and the lateral sides of the back waist area 103 are ultrasonically compounded with a second stitching line 3, and the outer clothing layer 11 includes a waist elastic band 111, a crotch elastic band 112, an outer non-woven fabric 113 and an inner non-woven fabric 114, the waist elastic band 111 and the crotch elastic band 112 are arranged between the outer non-woven fabric 113 and the inner non-woven fabric 114, the waist elastic band 111 is distributed in the front waist area 101 and the back waist area 103, and the waist elastic band 111 is fixed by ultrasonic composite to form a first stitching point 4, the outer non-woven fabric 113, the waist elastic band 111 and the inner non-woven fabric 114 are fixed by the first stitching point 4, and the first stitching points 4 are distributed at intervals along the extension direction of the waist elastic band 111, the crotch elastic band 112 is distributed in the crotch area 102, and the crotch elastic band 112 is fixed by ultrasonic composite to form a second stitching point 5, the outer non-woven fabric 113, the crotch elastic band 112 and the inner non-woven fabric 114 are fixed by the second stitching point 5, and the second stitching points 5 are distributed at intervals along the extension direction of the crotch elastic band 112.

[0019] Specifically, the front waist area 101 and the back waist area 103 both include a first elastic area 101a and a second elastic area 101b distributed in sequence from the longitudinal outer end to the longitudinal middle, and the ratio of the longitudinal width dimension of the first elastic area 101a to the longitudinal width dimension of the second elastic area 101b is 1:2-6, preferably 1:3. The waist elastic band 111 includes a first waist elastic band 111a and a second waist elastic band 111b, the first waist elastic band 111a is distributed in the first elastic area 101a, and the second waist elastic band 111b is distributed in the second elastic area 101b, and the spacing dimension between two adjacent first waist elastic bands 111a is smaller than the spacing dimension between two adjacent second waist elastic bands 111b.

[0020] The glue-free baby pull-up pants sew and fix the absorbent body 12 and the outer clothing layer 11 through the first stitching line 2 formed by ultrasonic compounding, and sew the front waist area 101 and the rear waist area 103 of the outer clothing layer 11 at the lateral sides through the second stitching line 3. At the same time, the waist elastic band 111 and the crotch elastic band 112 are respectively fixedly connected to the outer non-woven fabric 113 and the inner non-woven fabric 114 of the outer clothing layer 11 through the first stitching point 4 and the second stitching point 5, so as to realize the interruption and compounding of the waist elastic band 111 and the crotch elastic band 112. Compared with the traditional pull-up pants, the composite fixation of the product is realized without using glue, which is green and environmentally friendly. In the absence of glue, it is possible to prevent glue from penetrating into the material of the pull-up pants, so that the material maintains a high water absorption efficiency; and, by setting the first elastic area 101a and the second elastic area 101b with a width ratio of 1:2 to 6 in the front waist area 101 and the back waist area 103, and arranging the first waist elastic band 111a and the second waist elastic band 111b with different intervals in the first elastic area 101a and the second elastic area 101b, the front waist area 101 and the back waist area 103 have different expansion and contraction dimensions in the width direction, which can be suitable for attachment to the waist of babies, improve the fit, and thus improve the comfort of use.

[0021] In addition, the absorbent body 12 includes a PE film 121, a core layer 122, a guide layer 123, a water-repellent non-woven fabric 124, a surface non-woven fabric 125, and a three-dimensional protective elastic band 126. The surface non-woven fabric 125, the guide layer 123, the core layer 122, and the PE film 121 are stacked and distributed in sequence from top to bottom, and are connected by hot pressing. The water-repellent non-woven fabric 124 is distributed on both sides of the surface non-woven fabric 125, and the lateral outer side of the water-repellent non-woven fabric 124 is ultrasonically compounded with a third suture line 6 with the outer clothing layer 11. The three-dimensional protective elastic band 126 is arranged on the lateral inner layer of the water-repellent non-woven fabric 124, and is fixed by ultrasonic compounding to form a third stitching point (not shown in the figure), and the third stitching points are spaced apart along the extension direction of the three-dimensional protective elastic band 126. The third stitching line 6 formed by ultrasonic compounding fixes the water-repellent non-woven fabric 124 to the outer clothing layer 11, and the surface non-woven fabric 125, the guide layer 123, the core layer 122 and the PE mold 121 are stacked and distributed in sequence from top to bottom, and are connected by hot pressing compounding, so that the absorbent body 12 can be prepared without gluing, which is green and environmentally friendly.

[0022] Furthermore, the crotch elastic band 112 includes a first crotch elastic band 112a close to the front waist area 101 and a second crotch elastic band 112b close to the back waist area 103, and both the first crotch elastic band 112a and the second crotch elastic band 112b are trumpet-shaped structures, with the opening of the first crotch elastic band 112a facing the front waist area 101, and the opening of the second crotch elastic band 112b facing the back waist area 103, thereby improving the fit of the pull-up pants, reducing the risk of leakage, and improving wearing comfort.

[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0024] Although the present invention has been specifically shown and described in conjunction with the preferred embodiments, it should be understood by those skilled in the art that various changes may be made to the present invention in form and details without departing from the spirit and scope of the present invention as defined by the appended claims, all of which are within the scope of protection of the present invention.

Claims

1. A pair of glue-free baby pull-up pants, characterized by: It includes a pull-up pants body, which is defined as a longitudinal direction extending along the length direction of the pull-up pants body and a lateral direction extending along the width direction thereof. The pull-up pants body includes an outer clothing layer and an absorbent body. The outer clothing layer has a front waist area, a crotch area and a rear waist area in sequence along the longitudinal direction. The absorbent body is arranged in the crotch area of ​​the outer clothing layer, and the lateral sides of the absorbent body and the outer clothing layer are ultrasonically compounded with a first stitching line, and the lateral sides of the front waist area of ​​the outer clothing layer and the lateral sides of the rear waist area of ​​the outer clothing layer are ultrasonically compounded with a second stitching line, and the outer clothing layer includes a waist elastic band, an outer non-woven fabric and an inner non-woven fabric, and the waist elastic band is arranged between the outer non-woven fabric and the inner non-woven fabric. The waist elastic band is distributed in the front waist area and the back waist area, and the waist elastic band is fixed by ultrasonic composite to form a first stitching point, and the outer non-woven fabric, the waist elastic band and the inner non-woven fabric are fixed by the first stitching point, and the first stitching points are distributed at intervals along the extension direction of the waist elastic band, and the front waist area and the back waist area both include a first elastic zone and a second elastic zone distributed in sequence from the longitudinal outer end to the longitudinal middle, and the waist elastic band includes a first waist elastic band and a second waist elastic band, the first waist elastic band is distributed in the first elastic zone, and the second waist elastic band is distributed in the second elastic zone, and the spacing between two adjacent first waist elastic bands is smaller than the spacing between two adjacent second waist elastic bands.

2. The glue-free baby pull-up pants according to claim 1, characterized in that: The ratio of the longitudinal width of the first elastic region to the longitudinal width of the second elastic region is 1:2-6.

3. The glue-free baby pull-up pants according to claim 2, characterized in that: The outer garment layer also includes crotch elastic bands, which are arranged between the outer non-woven fabric and the inner non-woven fabric. The crotch elastic bands are distributed in the crotch area, and the crotch elastic bands are fixed by ultrasonic composite to form second stitching points. The outer non-woven fabric, the crotch elastic bands and the inner non-woven fabric are fixed by the second stitching points, and the second stitching points are distributed at intervals along the extension direction of the crotch elastic bands.

4. The glue-free baby pull-up pants according to claim 1, 2 or 3, characterized in that: The absorbent includes a PE film, a core layer, a guide layer, a water-repellent non-woven fabric, a surface non-woven fabric and a three-dimensional protective elastic band. The surface non-woven fabric, the guide layer, the core layer and the PE film are stacked in sequence from top to bottom and are connected by hot pressing. The water-repellent non-woven fabric is distributed on both lateral sides of the surface non-woven fabric, and the lateral outer side of the water-repellent non-woven fabric and the outer clothing layer are ultrasonically composited with a third stitching line. The three-dimensional protective elastic band is arranged on the lateral inner layer of the water-repellent non-woven fabric and is fixed by ultrasonic composite to form a third stitching point. The third stitching points are spaced apart along the extension direction of the three-dimensional protective elastic band.

5. The glue-free baby pull-up pants according to claim 3, characterized in that: The crotch elastic band includes a first crotch elastic band near the front waist area and a second crotch elastic band near the back waist area. The first crotch elastic band and the second crotch elastic band are both trumpet-shaped structures. The opening of the first crotch elastic band faces the front waist area, and the opening of the second crotch elastic band faces the back waist area.

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