Baby pull-ups with breathable and adjustable waistline

Abstract

The utility model belongs to the technical field of personal care, and particularly relates to a pair of baby pull-ups with breathable and adjustable waistlines, which comprises a main body and an inner garment, the inner garment is connected to the inner side of the main body, elastic materials are compounded in the main body, and elastic waistlines are arranged on the front side and / or the rear side of the main body respectively. A plurality of holes are formed in the elastic waistline on the front side and / or the elastic waistline on the rear side so as to form a point breaking hole area, and part or all of the holes correspond to the elastic material in the elastic waistline on the corresponding side to start the point breaking effect. According to the adjustable baby pull-ups with the breathable waistline, self-adjustment can be conducted according to different baby postures when a baby wears the pull-ups to walk, the holes can be enlarged along with increase of the actuation amplitude, and ventilation and heat dissipation are facilitated. In addition, the baby pull-ups with the breathable and adjustable waistline further have the advantages of being reasonable in structure, comfortable in body feeling when being worn and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of personal care, in particular to a pair of baby pull-up pants with breathable and adjustable waistline. Background Art

[0002] The breathability of existing pull-up pants is primarily determined by the air permeability of the outer lining. However, due to the contraction of the elastic material, the outer lining can accumulate, significantly reducing the overall breathability of the product. Furthermore, existing pull-up pants are rarely adjusted to suit different body shapes and time of day (e.g., a bulging abdomen after a full meal, a flat abdomen at normal times) to ensure ventilation. Furthermore, they can feel restrictive, making them uncomfortable to wear. Utility Model Content

[0003] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract and title of the utility model to avoid obscuring the purpose of this section, the abstract and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0004] The present invention provides the following technical solutions to solve one or more of the above technical problems:

[0005] A pair of baby pull-up pants with a breathable and adjustable waist, comprising a main body and an inner layer, wherein the inner layer is connected to the inner side of the main body, the main body comprising an outer lining and an inner lining, with a composite elastic material between the inner lining and the outer lining, and elastic waists are provided on the front and back sides of the main body, respectively, an elastic waist on the front side and / or an elastic waist on the back side, and a plurality of holes are provided on the elastic waist on the front side and / or the elastic waist on the back side to form a point-breaking hole area, and part or all of the holes are arranged correspondingly to the elastic material in the elastic waist on the corresponding side, thereby having a point-breaking effect.

[0006] In some embodiments, the holes are arranged in a flush or staggered distribution to form a network structure, and the holes avoid the side seal settings on the interior and / or the main body. Based on the side seal, the length L0 of the longitudinal point-disconnected hole area is less than or equal to A*85%.

[0007] In some embodiments, the elastic material is one of elastic rubber band, elastic film, and elastic non-woven fabric.

[0008] In some embodiments, the elastic material is an elastic rubber band, and a plurality of elastic materials are provided in the elastic waist, and a distance between two adjacent elastic materials is H;

[0009] In the transverse direction, the length W0 of the point-disconnected hole area is 10%-50% of the width B of the elastic waist, and the distance W between two adjacent holes is 8%-60% of W0;

[0010] In the longitudinal direction, the hole corresponds to one elastic material, that is, the hole only breaks one elastic material, the length L of the hole is less than H*3 / 4, and the hole takes the corresponding elastic material as the center line, the length L1 of the hole above the center line of the hole is less than (H*2 / 5), and the length L2 of the hole below the center line is less than (H*2 / 5). Taking the number of elastic materials in the point-breaking hole area as the basis, the number of elastic materials broken when the hole is point-broken is less than or equal to 100% of the total number of elastic materials in the point-breaking hole area.

[0011] In some embodiments, L1 is smaller than L2.

[0012] In some embodiments, the elastic material is an elastic rubber band, and a plurality of elastic materials are provided in the elastic waist, and a distance between two adjacent elastic materials is H;

[0013] In the transverse direction, the length W0 of the dot-disconnected hole area is 10%-50% of the width B of the elastic waist, and the spacing W between two adjacent holes is 8%-60% of the length W0 of the dot-disconnected hole area;

[0014] In the longitudinal direction, the holes correspond to multiple elastic materials, that is, the holes simultaneously cut off multiple elastic materials, and the number of elastic materials cut off at the same time is less than or equal to 100% of the total number of elastic materials in the cut hole area. In the longitudinal direction, the spacing L3 between two adjacent holes is 5%-20% of L0.

[0015] In some embodiments, the elastic material is an elastic film, and in the transverse direction, the length W0 of the point-disconnected hole area is 10%-50% of the width B of the elastic waist, and in the longitudinal direction, the longitudinal opening ratio of the product is less than or equal to 15%, and the longitudinal opening ratio of the product = the number of holes in the longitudinal single-row point-disconnected holes / the length L0 of the longitudinal point-disconnected hole area.

[0016] In some embodiments, the elastic material is an elastic non-woven fabric. In the transverse direction, the length W0 of the point-disconnected hole area is 10%-40% of the width B of the elastic waist. In the longitudinal direction, the longitudinal opening ratio of the product is less than or equal to 10%, and the longitudinal opening ratio of the product = the number of holes in the longitudinal single row of point-disconnected holes / the length L0 of the point-disconnected hole area in the longitudinal direction.

[0017] In some embodiments,

[0018] There is also an S-leg elastic band between the inner lining fabric and the outer lining fabric. Both the outer lining fabric and the inner lining fabric can be one of spunbond non-woven fabric, hot air non-woven fabric, hot pressed non-woven fabric and meltblown non-woven fabric.

[0019] After the interior is compounded with the main body, an interior elastic area is formed corresponding to the interior, and the elastic material in the interior elastic area is subjected to de-bounce treatment.

[0020] In some embodiments, the inner garment comprises a bottom film, a three-dimensional protective enclosure located on the top layer of the bottom film, and a double-layer absorbent body wrapped with a surface non-woven fabric. A plurality of first elastic materials are arranged in the three-dimensional protective enclosure, the surface non-woven fabric is wrapped on the bottom film from below, and a second elastic material is arranged on both sides of the surface non-woven fabric to form a suspended core structure, wherein

[0021] The first elastic material and the second elastic material are both elastic rubber bands; the surface non-woven fabric can be a double-layer composite structure, and the surface non-woven fabric is formed by combining an upper surface non-woven fabric and a lower surface non-woven fabric; the double-layer absorbent body can be formed by combining an upper absorbent body and a lower absorbent body.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] When worn, the holes can be stretched open by the action of the main body and the elastic material in the main body, thereby enhancing the breathability of the elastic waist. The design of the hole structure can automatically adjust the breathability and tightness of the waist and abdomen according to the changes in the holes under different body postures, effectively reducing the sense of restraint when worn and making the body feel comfortable. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below in conjunction with the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive labor. Among them:

[0025] Figure 1 A schematic diagram of the expanded structure of the disposable absorbent article described in Example 1;

[0026] Figure 2 A front view of the disposable absorbent article described in Example 1;

[0027] Figure 3 A schematic diagram of the expanded structure of the disposable absorbent article described in Example 2;

[0028] Figure 4 for Figure 3 Enlarged view of part Aa in the middle;

[0029] Figure 5 A front view of the disposable absorbent article described in Example 2;

[0030] Figure 6 A schematic diagram of the expanded structure of the disposable absorbent article described in Example 3;

[0031] Figure 7 A front view of the disposable absorbent article described in Example 3;

[0032] Figure 8 Schematic diagram of a point-breaking knife in some embodiments of the present invention;

[0033] Figure 9 It is a cross-sectional schematic diagram of the interior in some embodiments of the present invention;

[0034] Figure 10 Schematic diagram of baby pull-up pants with adjustable waistline and breathable shape when the baby's abdomen is in a normal state in some embodiments of the present invention;

[0035] Figure 11 Schematic diagram of baby pull-up pants with adjustable waistline and breathable shape when the baby's abdomen is full in some embodiments of the present invention;

[0036] Figure 12 This is a schematic diagram of a standing baby mannequin wearing clothes in some embodiments of the present invention. DETAILED DESCRIPTION

[0037] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0038] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0039] Next, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, cross-sectional views of device structures may be partially enlarged and not to scale when describing the embodiments of the present invention. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, three-dimensional dimensions, including length, width, and depth, should be included.

[0040] In order to make the purpose, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0041] Combine Figures 1 to 11The embodiment of the present invention provides a pair of breathable and adjustable waist pull-up pants for infants, comprising a main body and an inner garment 3, the inner garment 3 being connected to the inner side of the main body. The main body is provided with a composite elastic material 26. Elastic waists are provided on both the front and back sides of the main body, namely the front elastic waist and / or the back elastic waist. The front elastic waist and / or the back elastic waist are provided with a plurality of holes to form a dotted hole area, and some or all of the holes are provided correspondingly to the elastic material 26 in the elastic waist on the corresponding side. The holes provided corresponding to the elastic material 26 dot-interrupt the corresponding elastic material 26, and the edges of the holes provided corresponding to the elastic material 26 are connected to at least one elastic material 26.

[0042] The holes can be arranged in a matrix or other arrangement shapes, and the holes are distributed flush (e.g., forming Figure 1 and Figure 2 ) or staggered distribution (e.g., forming a structure formed by the arrangement of the first holes 9 shown in FIG. Figure 3 and Figure 4 The structure formed by the arrangement of the second holes 10 shown, Figure 5 and Figure 6 The third holes 12 shown in the figure are arranged to form a network structure.

[0043] In some specific implementations, the holes provided on the same pair of pull-up pants have the same size and shape.

[0044] When worn in a stretched state, the holes are expanded to form polygonal (e.g., quadrilateral), elliptical, circular, or other shapes. Two non-adjacent corners of the holes are aligned with corresponding elastic material 26. The holes not only open the holes but also interrupt the elastic material 26. These adjustable waistband breathable pull-up pants automatically adjust the size and tightness of the holes to suit the baby's different needs.

[0045] The main body includes an outer lining cloth and an inner lining cloth, and the elastic material is compounded between the inner lining cloth and the outer lining cloth. The outer lining cloth and the inner lining cloth described herein can be one of spunbond nonwoven fabrics, hot air nonwoven fabrics, hot pressed nonwoven fabrics, and meltblown nonwoven fabrics.

[0046] The elastic material 26 may be one of: elastic rubber band (rubber band denier 120D-1100D), elastic film, elastic non-woven fabric (one or more of SBS block copolymer elastomer, POE polyolefin elastomer, TPU polyurethane, EPDM ethylene propylene diene monomer rubber elastomer and their combinations or modifications).

[0047] In some specific implementations, the holes are arranged away from the side seal 2 and / or the inner lining 3; and at least one edge of the hole corresponding to the elastic material 26 in the elastic waistband on the corresponding side is connected to the elastic material 26.

[0048] Generally, the aforementioned point-breakout perforation area is based on the side seam 2 of the product (breathable, adjustable waist baby pull-up pants). The area covering 85% of the vertical height A of the side seal 2 from bottom to top can be the point-breakout perforation area. The vertical length L0 of the point-breakout perforation area is less than or equal to (A * 85%). The point-breakout perforation area is located on both sides of the inner lining 3.

[0049] Furthermore, in the horizontal direction, the distance from the point-break hole area to the inner decoration 3 is D, and D is greater than 0, so as to prevent the inner decoration 3 from being damaged and causing leakage.

[0050] Furthermore, in the transverse direction, the distance from the point-break hole area to the side seal 2 is C, and C is greater than 0 to avoid affecting the strength of the side seal 2.

[0051] In some specific implementations, when the elastic material 26 is an elastic rubber band:

[0052] The elastic waist is provided with a plurality of elastic materials 26, and the distance between two adjacent elastic materials 26 is H;

[0053] In the transverse direction, the length W0 of the dotted holes on either side of the inner garment 3 should be 10%-50% of the elastic waistband's width B. In the transverse direction, the spacing W between adjacent holes should be 8%-60% of W0. If the spacing W is too large, proper ventilation will not be achieved. If the spacing W is too small, elasticity will be completely lost and the product will easily tear. The transverse breaking strength of the elastic waistband after perforation according to this perforation design should be ≥1N / 25mm. In the longitudinal direction, when the hole corresponds to one elastic material 26 (i.e., the hole only interrupts one elastic material 26), the length L of the hole is less than (H*3 / 4), and the hole is centered on the corresponding elastic material. The length L1 of the hole above the center line is less than (H*2 / 5), and the length L2 of the hole below the center line is less than (H*2 / 5). Based on the number of elastic materials 26 in the point-disconnected hole area, the number of elastic materials 26 interrupted when the hole is interrupted (i.e., the number of elastic materials interrupted by the hole, when multiple holes interrupt the same elastic material, the interrupted elastic materials 26 are counted as 1) is ≤100% of the total number of elastic materials 26 in the point-disconnected hole area; when the hole corresponds to multiple elastic materials 26 (i.e., the same hole interrupts multiple elastic materials 26 at the same time), the number of elastic materials 26 interrupted by the hole at the same time is less than or equal to 100% of the total number of elastic materials 26 in the point-disconnected hole area. In the longitudinal direction, the spacing L3 between two adjacent holes is 5%-20% of L0. When the spacing L3 of the longitudinal openings is too large, it is impossible to achieve good air permeability and form a good diamond hole effect. If the spacing L3 of the openings is too small, the product will be easily broken in the longitudinal direction. According to this opening design, the longitudinal breaking strength of the elastic waist after opening is ≥1N / 25mm.

[0054] In some specific implementations, when the hole corresponds to an elastic material 26, L1 is smaller than L2, and the hole may be in a rhombus shape when stretched. The ends of the elastic material 26 that are cut on both sides of the hole are respectively connected to the two corners of the rhombus, and the line connecting the other two corners of the rhombus is set as line A. The rhombus is symmetrically distributed about line A.

[0055] In some specific implementations, when the elastic material 26 is an elastic film:

[0056] In the horizontal direction, the length W0 of the point-break hole area on either side of the inner decoration 3 is 10%-50% of the width B of the elastic waist. In the horizontal direction, the spacing W between two adjacent holes is 8%-60% of W0. If the horizontal hole spacing W is too large, it will not achieve a good ventilation effect. If the horizontal hole spacing W is too small, it will cause complete loss of elasticity and the product will be easy to tear. The elastic waist after the holes are cut according to this hole design has a horizontal breaking strength of ≥1N / 25mm. In the vertical direction, the proportion of longitudinal holes in the product is less than or equal to 15%. The longitudinal breaking strength of the elastic waist after the holes are cut according to this hole design is ≥1N / 25mm. The product's longitudinal hole ratio = the number of holes in the longitudinal single row of point-break holes / the value of the length L0 of the longitudinal point-break hole area.

[0057] Further applications of this elastic material in the manufacture of products can include the use of a combination of ultrasonic and knife punching to perforate the elastic material. Due to the different materials of the elastic membrane, outer lining, and inner lining, ultrasonic punching can achieve a seal by punching through the membrane while maintaining the outer and inner linings. Ultrasonic punching is performed in the unpunctured area between the two knife punches (i.e., the area between the two holes).

[0058] In some specific implementations, when the elastic material 26 is an elastic nonwoven fabric:

[0059] In the horizontal direction, the length W0 of the point-break hole area on either side of the inner decoration 3 is 10%-40% of the width B of the elastic waist. In the horizontal direction, the spacing W between two adjacent holes is 8%-60% of W0. If the horizontal hole spacing W is too large, it will not achieve a good ventilation effect. If the horizontal hole spacing W is too small, it will cause complete loss of elasticity and the product will be easy to tear. The elastic waist after the holes are cut according to this hole design has a horizontal breaking strength of ≥1N / 25mm. In the vertical direction, the proportion of longitudinal holes in the product is less than or equal to 15%. The longitudinal breaking strength of the elastic waist after the holes are cut according to this hole design is ≥1N / 25mm. The product's longitudinal hole ratio = the number of holes in the longitudinal single row of point-break holes / the value of the length L0 of the longitudinal point-break hole area.

[0060] In some specific implementations, at least one of the holes corresponding to the elastic material in the elastic waistband on one side is polygonal, and at least one corner of the hole corresponding to the elastic material in the elastic waistband on one side is connected to the elastic material.

[0061] In some specific implementations, such as Figures 1 to 5 As shown, an S-shaped leg elastic band 7 is compounded between the outer lining cloth and the inner lining cloth.

[0062] The structure of the above-mentioned inner packaging 3 can be: the inner packaging 3 includes a bottom film 24, a three-dimensional protective surround 6 located on the upper layer of the bottom film, and a double-layer absorbent body wrapped by a surface non-woven fabric 19. A plurality of first elastic materials 20 are arranged in the three-dimensional protective surround 6, and the surface non-woven fabric 19 is wrapped on the bottom film 24 from the bottom, and a second elastic material 21 is arranged on both sides of the folded surface non-woven fabric 19 to form a suspended core structure. Among them, the first elastic material 20 and the second elastic material 21 can both be elastic rubber bands, the stretch ratio of the elastic rubber bands is 1.6-2.5, and the denier is 470-780 dtex; the surface non-woven fabric 19 can be a double-layer composite structure, and the surface non-woven fabric 19 is formed by the upper surface non-woven fabric 18 and the lower surface non-woven fabric 17 through hot pressing or ultrasonic pressing; the surface non-woven fabric 19 can be provided with 3D stereo embossing; the double-layer absorbent body can be formed by a combination of an upper absorbent body 22 and a lower absorbent body 23 of the same size and size (it can also be composed of two layers of absorbent bodies of inconsistent size and / or size, which can be directly realized by existing technology, so it will not be repeated here), the upper absorbent body 22 and the lower absorbent body 23 can both include a core body and a wrapping layer, the core body can be one or more of wood pulp mixture, toilet paper, non-woven fabric, absorbent paper and dust-free paper, and the wrapping layer can be one or more of toilet paper, non-woven fabric, absorbent paper and dust-free paper. The structures and components involved here can be realized by directly adopting the existing technology, so no further description is given here. In addition, the interior 3 can also directly adopt other existing interior structures.

[0063] In some specific implementations, combined with Figure 3 and Figure 4 As shown, after the inner decoration 3 is compounded with the main body, an inner decoration elastic area 5 is formed corresponding to the inner decoration, and the elastic material 26 in the inner decoration elastic area 5 is subjected to de-bounce treatment.

[0064] The following waist-adjustable breathable baby pull-up pants take baby pull-up pants, two-piece Q pants, elastic rubber band style (i.e., the elastic material is elastic rubber band), waist length B is 380mm, side seal length A is 130mm, and elastic rubber band spacing H is 12mm as an example.

[0065] The preparation method of the above-mentioned waist-circumference breathable and adjustable baby pull-up pants comprises the following steps:

[0066] 1) Prepare interior 3;

[0067] 2) preparing the main body, laminating the outer lining cloth and the inner lining cloth, and laminating the S-leg elastic band 7 and elastic material between the outer lining cloth and the inner lining cloth to form a preliminary main body product. After the lamination is completed, the preliminary main body product is subjected to de-elastic treatment and point-cut holes to form the main body.

[0068] De-bounce treatment: The elastic material 26 in the inner elastic area 5 is de-bounced. The relevant data for the de-bounce treatment can be: the de-bounce length X3 is 0.8-5mm, preferably 3mm; the spacing X2 between de-bounces in the same row is 2-12mm, preferably 9mm; the spacing X between de-bounces in the same column is 1-6mm, preferably 3mm; and the distance X1 from the bottom of the upper de-bounce to the top of the lower de-bounce in two adjacent de-bounces in the same column is 0-2mm, preferably 1mm.

[0069] Point breaking holes: Taking the holes to be punched in a matrix arrangement as an example, the elastic band is point-punched between the edge of the side seal 2 in the transverse direction of the product at 0-30mm (preferably 25mm) and the edges of the inner decoration 3 on both sides at 0-30mm (preferably 25mm). The spacing W between two adjacent holes in the transverse direction is set to 3-20mm (preferably 17.5mm). Five holes are opened on both sides of the inner decoration 3 in the same row. In the longitudinal direction, when a single elastic rubber band is cut, the cut hole length L must be less than 3 / 4 of the distance H between two adjacent elastic rubber bands 26 and with the single elastic rubber band as the center line, the upper and lower cut areas L1 and L2 must be less than 2 / 5 of the distance H between the adjacent elastic rubber bands 26. The preferred cut area is cut from the inner end to the next elastic spandex yarn for cut punching, with a total of 5 rows of cuts. The cut length is based on the elastic rubber band as the center line, the upper and lower cut hole lengths are 4mm, and the total cut hole length is 8mm. The cut spacing between the first and second rows is 4mm and they are arranged flush. Figure 1 As shown; the stretching effect of the product after point punching is as follows Figure 2 If two adjacent rows of holes are staggered, the longitudinal spacing L3 is 4mm, and the transverse spacing W1 is 8.75mm, as shown in Figure 3 As shown; the stretching effect of the product after point punching is as follows Figure 5 As shown. If the hole length is based on the elastic band as the center line, the hole length L1 of the upper point punch is 4mm, the hole length L2 of the lower point punch is 5mm, and the total hole length L of the point punch is 9mm, as shown Figure 6 As shown, the product stretching effect is as follows Figure 7 The third hole 12 thus produced is in the shape of an elongated diamond, which is more beautiful in appearance. The point-breaking holes are basically made avoiding the internal composite position and the side seal formation position.

[0070] Punching and debounce can be done at separate stations or simultaneously on the same knife roll. Figure 8The knife roller shown is provided with an internal bullet-eliminating tool 14 and point-breaking and punching tools 15 and 16 on both sides. A gasket 13 is provided between the internal bullet-eliminating tool 14 and the point-breaking and punching tools 15 and 16 on both sides and the central axis of the knife roller. The internal bullet-eliminating tool 14 and the point-breaking and punching tools 15 and 16 on both sides are three independently controlled modules. The height H8 of the gasket 13 of the three modules can be adjusted to perform cutting at different depths on the point-breaking and punching areas and the bullet-eliminating treatment areas on both sides, so that the internal bullet-eliminating area minimizes damage to the product and the point-breaking and punching areas on both sides are completely penetrated.

[0071] After completing the internal deflation and rubber band cutting and punching, the product is O-cut to form the leg loop;

[0072] 3) Connect the inner packaging 3 to the main body, then fold the waist of the product inward, then fold the product front and back, perform ultrasonic sealing and cutting on the sides to form side seals, and form a complete product for folding packaging.

[0073] Furthermore, the outer lining fabric can be laminated with the S-shaped leg elastic band 7 and the inner lining fabric can be laminated with the waist elastic band 26. After the inner and outer lining fabrics are laminated, they are cut into the front elastic waist band 4 and the back elastic waist band 8. After being laminated with the inner lining 3, they are subjected to de-elastic treatment and point-cutting and perforation on both sides. The inner elastic area 5 of the product is de-elasticized and then R-cut to form leg loops. The waist band of the product is then folded inward, and the product is folded in half front to back. The sides are ultrasonically sealed and slit to form a complete product for folding packaging.

[0074] During the preparation process of the above-mentioned waist-adjustable breathable baby pull-up pants, the inner garment and the main body can be compositely connected first, and then the main body is subjected to de-elastic treatment and point-opening holes, with the hole opening position avoiding the inner garment and the composite area of ​​the inner garment on the main body.

[0075] The above-mentioned waist breathable adjustable baby pull-up pants can be stretched to form a shape like this when worn. Figure 2 The first diamond-shaped hole 9 shown, Figure 5 The second hole 10 shown, Figure 7 The shapes of the third hole 12 and others shown can also be adjusted as needed, and the actual size and tightness of the holes can be automatically adjusted according to the different states of the baby.

[0076] Combine Figures 10 to 12 As shown in the content, when the baby is full, the product is supported outward due to the bulging belly. At this time, the holes will become larger to help it dissipate heat, and the elastic material 26 corresponding to the holes is cut into several independent elastic waist areas 11 by the holes, which can reduce the pressure of the product on the baby's abdomen.

[0077] refer to Figure 11When a baby is full, their abdomen bulges, causing H1' to increase. At this point, H1'>H1. The elastic stretches to a length of F2 according to the formula F2=√H1²+(1 / 2R)², where R is determined by the baby's waist circumference, specifically half of the baby's waist circumference. Therefore, as H1 increases, the elastic stretches to a greater length, increasing the stretch ratio and the tension on both ends of the hole, thereby increasing breathability. If the baby's waist circumference R is larger, according to the formula F2=√H1²+(1 / 2R)², under the same conditions, the larger R will also increase the breathability of the baby.

[0078] The product's pressure on the baby primarily comes from force F, which is determined by force F1 and force F2. According to the formula F=√F1²+F2²-2F1F2COS²θ, when a baby is full, their abdomen bulges, causing the height H1' to increase. At this point, H1'>H1, and the elastic band's stretched length F2 increases, increasing the stretching force and the applied force F, creating a sense of restraint. By cutting the elastic waist into several independent elastic waist regions 11, the lengths of F1 and F2 are shortened, thereby reducing the forces F1 and F2. This reduces the combined force F of F1 and F2, thereby reducing pressure on the abdomen.

[0079] Similarly, for obese babies, the length H and the lengths F1 and F2 are relatively large. This method can reduce the sense of restraint of the product on the baby and achieve a comfortable body feeling.

[0080] The above-mentioned baby pull-up pants can be a two-piece Q-type pants with elastic bands, a waist length of 380mm, a side seal of 130mm, and a spacing of 120mm between the elastic bands on the abdomen. The style, waist length, side seal length, and spacing between the elastic bands on the abdomen of the baby pull-up pants can also be adjusted as needed. This is not the inventive point of this application and can be directly implemented using existing technology, so it will not be described in detail again.

[0081] Combine Figure 12 As shown in the content, when the baby walks, the elastic waist is cut into several independent elastic areas 11, which can better fit the baby's abdominal curve and self-adjust according to the different body shapes of the baby. As the baby's movement amplitude increases, the product will be pulled in the X and Z directions (directions perpendicular to the height direction of the human body) (during movement, the height direction of the human body, that is, the Y direction, will only move up and down, and this direction has no elasticity and has little effect on the holes), so that the holes will also become larger, thereby helping to dissipate heat.

[0082] The above undisclosed matters can be directly implemented using existing technologies, so they will not be described in detail here.

[0083] While the present invention has been described above with reference to specific embodiments, various modifications may be made and equivalent components may be substituted without departing from the scope of the present invention. In particular, as long as no structural conflicts exist, the various features of the embodiments disclosed herein may be combined with one another in any manner, and the omission of an exhaustive description of these combinations in this specification is solely for the sake of space and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions within the scope of the claims.

Claims

1. A pair of baby pull-up pants with adjustable waistline, characterized in that: The utility model comprises a main body and an inner garment, wherein the inner garment is connected to the inner side of the main body, the main body comprises an outer lining cloth and an inner lining cloth, and an elastic material is composited between the inner lining cloth and the outer lining cloth. The main body is provided with an elastic waistband on both the front and back sides, which are respectively an elastic waistband on the front side and / or an elastic waistband on the back side. A plurality of holes are provided on the elastic waistband on the front side and / or the elastic waistband on the back side to form a point-disconnected hole area, and part or all of the holes are arranged correspondingly to the elastic material in the elastic waistband on the corresponding side, thereby playing a point-disconnected role.

2. The waist-adjustable breathable baby pull-up pants according to claim 1, characterized in that: The holes are arranged in a flush or staggered manner to form a network structure. The holes avoid the side seals on the interior and / or the main body. The side seals are used as the standard, and the length L0 of the longitudinal point-disconnected hole area is less than or equal to A*85%.

3. The waist-adjustable breathable baby pull-up pants according to claim 1, characterized in that: The elastic material is one of elastic rubber band, elastic film and elastic non-woven fabric.

4. The waist-adjustable breathable baby pull-up pants according to claim 3, characterized in that: The elastic material is an elastic rubber band, and a plurality of elastic materials are provided in the elastic waist, and the distance between two adjacent elastic materials is H; In the transverse direction, the length W0 of the point-disconnected hole area is 10%-50% of the width B of the elastic waist, and the distance W between two adjacent holes is 8%-60% of W0; In the longitudinal direction, the hole corresponds to one elastic material, that is, the hole only breaks one elastic material, the length L of the hole is less than H*3 / 4, and the hole takes the corresponding elastic material as the center line, the length L1 of the hole above the center line of the hole is less than (H*2 / 5), and the length L2 of the hole below the center line is less than (H*2 / 5). Taking the number of elastic materials in the point-breaking hole area as the basis, the number of elastic materials broken when the hole is point-broken is less than or equal to 100% of the total number of elastic materials in the point-breaking hole area.

5. The waist-adjustable breathable baby pull-up pants according to claim 4, characterized in that: L1 is smaller than L2.

6. The waist-adjustable breathable baby pull-up pants according to claim 3, characterized in that: The elastic material is an elastic rubber band, and a plurality of elastic materials are provided in the elastic waist, and the distance between two adjacent elastic materials is H; In the transverse direction, the length W0 of the dot-disconnected hole area is 10%-50% of the width B of the elastic waist, and the spacing W between two adjacent holes is 8%-60% of the length W0 of the dot-disconnected hole area; In the longitudinal direction, the holes correspond to multiple elastic materials, that is, the holes simultaneously cut off multiple elastic materials, and the number of elastic materials cut off at the same time is less than or equal to 100% of the total number of elastic materials in the cut hole area. In the longitudinal direction, the spacing L3 between two adjacent holes is 5%-20% of L0.

7. The waist-adjustable breathable baby pull-up pants according to claim 3, characterized in that: The elastic material is an elastic film. In the horizontal direction, the length W0 of the point-disconnected hole area is 10%-50% of the width B of the elastic waist. In the vertical direction, the longitudinal opening ratio of the product is less than or equal to 15%. The longitudinal opening ratio of the product = the number of holes in the longitudinal single row of point-disconnected holes / the length L0 of the longitudinal point-disconnected hole area.

8. The waist-adjustable breathable baby pull-up pants according to claim 3, characterized in that: The elastic material is an elastic non-woven fabric. In the horizontal direction, the length W0 of the point-break hole area is 10%-40% of the width B of the elastic waist. In the vertical direction, the longitudinal opening ratio of the product is less than or equal to 10%. The longitudinal opening ratio of the product = the number of holes in the longitudinal single row of point-break holes / the length L0 of the longitudinal point-break hole area.

9. A waist-adjustable breathable baby pull-up pants according to any one of claims 1 to 8, characterized in that: There is also an S-leg elastic band between the inner lining fabric and the outer lining fabric. Both the outer lining fabric and the inner lining fabric can be one of spunbond non-woven fabric, hot air non-woven fabric, hot pressed non-woven fabric and meltblown non-woven fabric. After the interior is compounded with the main body, an interior elastic area is formed corresponding to the interior, and the elastic material in the interior elastic area is subjected to de-bounce treatment.

10. The waist-adjustable breathable baby pull-up pants according to claim 9, characterized in that: The inner packaging includes a bottom film, a three-dimensional protective enclosure located on the upper layer of the bottom film, and a double-layer absorbent body wrapped with a surface non-woven fabric. A plurality of first elastic materials are arranged in the three-dimensional protective enclosure. The surface non-woven fabric is wrapped on the bottom film from below, and a second elastic material is arranged on both sides of the surface non-woven fabric to form a suspended core structure. The first elastic material and the second elastic material are both elastic rubber bands; the surface non-woven fabric can be a double-layer composite structure, and the surface non-woven fabric is formed by combining an upper surface non-woven fabric and a lower surface non-woven fabric; the double-layer absorbent body can be formed by combining an upper absorbent body and a lower absorbent body.

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