Disposable shorts

Abstract

The present application relates to the field of clothing, and discloses disposable shorts. A base material layer of the shorts of the present application comprises a first sheet material on the outer side, a second sheet material on the inner side, and multiple elastic threads transversely extending between the first sheet material and the second sheet material. The elastic threads are spaced apart longitudinally, and the spacing between adjacent elastic threads ranges from 1.2 mm to 2.8 mm. When the base material layer is in a non-stretched state, a row of protrusions is transversely formed between every two adjacent elastic threads, wherein raised protrusions are spaced apart within the row of protrusions, slits are formed between the raised protrusions, and the transverse width of each raised protrusion is greater than the transverse width of each slit. By controlling the width and spacing of the elastic threads and the bonding method between the elastic threads and the sheet materials, an array arrangement structure of raised protrusions and slits can be formed in a smaller area. This structure enhances contact and conformity with the skin, helps to improve skin breathability, and reduces the appearance of pressure marks.

Description

Disposable shorts TECHNICAL FIELD

[0001] The present application relates to the technical field of clothing, more particularly, to a disposable short. BACKGROUND

[0002] During people's daily travel and business trips, it is inconvenient to change clothes, and disposable clothes have good practicality and convenience. The existing disposable pants are sewn from non-woven fabric, and the front body and the rear body connected on both sides made of non-woven fabric form a shape similar to pants, and the waist and leg attachment parts are formed by elastic members. This kind of disposable pants relies on manual sewing during processing, and the efficiency is low. And in terms of wearing, because the main part of the pants does not have elasticity, it cannot be attached to the body, and it is easy to appear hollow. Especially in summer, it is more obvious.

[0003] In view of the above problems, patent CN202020224048 discloses a pair of underpants, which includes a plurality of cloth layers, an elastic layer connected to the top edge of the front cloth layer and the top edge of the rear cloth layer, and the elastic layer has a waist opening. A plurality of first elastic threads are compounded on the underpants body to solve the problem of fit of the underpants. Although the elastic threads in the underpants enhance the fit, they have a large shrinkage and a strong binding feeling.

[0004] Patent CN201921241315.X discloses a composite elastic disposable underpants, which includes a non-woven outer layer, an elastic non-woven layer and a short-cut non-woven layer, and the elastic non-woven layer has relatively poor air permeability.

[0005] Japanese patent JP2002238934A discloses an absorbent pant, which has an elastic body compounded in the waist and leg parts, so that it has good skin fit, and an absorbent pad compounded in the crotch part. The crotch part of the pant does not have elasticity, although there is no problem of curling when the elasticity is compounded, but it belongs to the sanitary product industry, and the absorbent pad in the crotch part is easy to swell and has a large thickness, which is not suitable for use as daily underpants.

[0006] In addition, the wrinkles formed in patent JP2002238934A are longitudinal stripes, and the fit is limited, and a relatively flat surface cannot be formed. And as a sanitary product, it needs to have good absorbency and anti-side leakage function, which also means that it needs to sacrifice a certain flatness to ensure the elastic shrinkage and achieve good coverage.

[0007] In some sanitary products, there are also intermittent non-stripe wrinkles to increase softness. But at present, such wrinkles are mostly alternating peaks and valleys, forming a large gap to ensure air permeability. When the wrinkles are attached to the outside clothes, the edges of the wrinkles are more obvious after being pressed.

[0008] Therefore, there is a need to improve the fit of existing shorts and to replace existing disposable briefs.

[0009] Utility model content

[0010] 1. Technical problems to be solved by the utility model

[0011] The utility model aims at overcoming the difficulty of forming a flat surface of existing shorts, and provides disposable shorts with good fit and flatness, which can maintain a relatively flat surface under pressure and are not prone to wrinkles.

[0012] 2. Technical solutions

[0013] To achieve the above-mentioned purpose, the technical solutions provided are as follows:

[0014] The disposable shorts of the present solution comprise a waist opening part, a waist part and a crotch part mainly composed of a base material layer, the base material layer comprises a first sheet on the outer side, a second sheet on the inner side, and a plurality of elastic filaments extending in the transverse direction between the first sheet and the second sheet;

[0015] The elastic filaments are arranged at intervals along the longitudinal direction, and the interval between adjacent elastic filaments is 1.2-2.8 mm; in the non-stretched state of the base material layer, the cross-sectional longitudinal dimension of the elastic filaments is 0.05-0.6 mm;

[0016] The breaking elongation of the elastic filaments is 330-600%, and the elastic filaments have a connecting part that is bonded to the first sheet and the second sheet in the stretched state, so that the transverse stretching ratio of the base material layer is 1.4-3.5;

[0017] In the non-stretched state of the base material layer, a convex row array is formed in the transverse direction between the two adjacent elastic filaments, the convex row array is arranged at intervals with convex packages, the convex packages are arranged at intervals to form slits between them, and the transverse width of the convex packages is greater than the transverse width of the slits; at least in the area of 70% of the base material layer, the transverse width of the convex packages is 0.3-4.5 mm, and the transverse width of the slits is not greater than 2 mm.

[0018] Further, the stretch ratio of the elastic filaments to the base material layer is 1.1-3.0, and the stretch ratio is the ratio of the breaking elongation of the elastic filaments to the base material layer.

[0019] Further, in the area of 70% of the base material layer, the arching height of the convex packages relative to the two elastic filaments is 0.3-1.0 mm.

[0020] Further, in the longitudinal direction, the convex packages between different convex row arrays are arranged in a non-linear arrangement state.

[0021] Further, the waist opening part, the waist part and the crotch part are composed of a base material layer of an integral structure.

[0022] Further, the substrate layer is folded at the waist opening to form a double-layer structure, and the double-layer structure is wrapped with the transversely arranged elastic body.

[0023] Further, the elastic body is in the form of a filament, and 5-10 elastic bodies are arranged in the longitudinal direction within a range of 15-30 mm.

[0024] Alternatively, the elastic body is in the form of a film strip, and the elastic bodies are arranged in the longitudinal direction within a range of 15-30 mm.

[0025] Further, the elastic body is arranged at the top region of the double-layer structure and is connected by adhesive bonding; and the lower region is provided with intermittent connecting points A by welding.

[0026] Further, the connecting points A are arranged in 1-4 rows in the longitudinal direction, and the interval between the two adjacent connecting points A in each row in the transverse direction is 5-18 mm.

[0027] Further, a portion of the inner side of the crotch portion is bonded with a skin-friendly sheet.

[0028] Further, the skin-friendly sheet and the substrate layer form a non-prestressed composite structure.

[0029] Further, the skin-friendly sheet is made of a non-elastic material, and the skin-friendly sheet and the substrate layer form a non-prestressed flat surface.

[0030] Further, the skin-friendly sheet is provided with ultrasonic welding connecting points B arranged in the transverse direction near the two longitudinal edges of the skin-friendly sheet, which are used for the transition between different elastic regions.

[0031] Further, the two side edges of the skin-friendly sheet in the transverse direction are flush with the edges of the crotch portion, forming a non-elastic outer edge portion, and the leg opening of the short pants has a corresponding elastic outer edge portion of the substrate layer, and the elastic outer edge portion and the non-elastic outer edge portion formed by the substrate layer enclose the leg opening of the short pants.

[0032] The disposable short pants of the present application comprise a waist opening portion, a waist portion, and a crotch portion, which are at least partially formed by a substrate layer, the substrate layer comprising a first sheet on the outer side, a second sheet on the inner side, and a plurality of transversely extending elastic filaments between the first sheet and the second sheet.

[0033] The elastic filaments are arranged at intervals in the longitudinal direction, and the interval between the adjacent elastic filaments is 0.5-3.5 mm; the cross-sectional longitudinal dimension of the elastic filament (13) is 0.05-0.6 mm; the elastic filament has a connecting portion that is bonded to the first sheet and the second sheet in the stretched state; and:

[0034] In the non-stretched state of the substrate layer, a protruding row array is formed in the transverse direction between the two adjacent elastic filaments, the protruding row array is arranged at intervals with protruding packages, the protruding packages are arranged at intervals with slits, and the transverse width of the protruding packages is greater than the transverse width of the slits.

[0035] An elastomer is bonded to the waist opening portion;

[0036] A portion of the inner side of the crotch portion is bonded to a skin-friendly sheet.

[0037] Further, the two lateral edges of the skin-friendly sheet are flush with the edges of the crotch portion, forming a non-elastic outer edge portion, and the leg opening of the shorts has an elastic outer edge portion corresponding to the base material layer, and the elastic outer edge portion and the base material layer form a non-elastic outer edge portion surrounding the leg opening of the shorts.

[0038] Further, the raised package has a lateral width of 1.0-3.5 mm, and the slit has a width of 0.2-1.3 mm, and the lateral width of the raised package is at least 1.5 times the lateral width of the slit.

[0039] Further, the elastic filament has a denier of 70-300 denier, and the base material layer has a lateral stretch ratio of 2.0-3.5; and the cross-sectional longitudinal dimension of the elastic filament is 0.08-0.4 mm.

[0040] The disposable shorts of the present scheme comprise a waist opening portion, a waist portion, and a crotch portion at least partially composed of a base material layer, the base material layer comprising a first sheet on the outer side, a second sheet on the inner side, and a plurality of laterally extending elastic filaments between the first sheet and the second sheet; the base material layer exhibits non-elasticity in the longitudinal direction;

[0041] The elastic filaments are arranged at intervals along the longitudinal direction, and the distance between adjacent elastic filaments is 1.2-2.8 mm, and the cross-sectional longitudinal dimension of the elastic filament is 0.08-0.6 mm;

[0042] In the non-stretched state of the base material layer, a raised row array is formed between the two adjacent elastic filaments in the lateral direction, and the raised package is arranged at intervals in the raised row array, and the raised package is formed between the raised packages, and the lateral width of the raised package is greater than the lateral width of the slit, so that the material permeability is in the range of 0.5-4.0 m / s;

[0043] A portion of the inner side of the crotch portion is bonded to a skin-friendly sheet, and the skin-friendly sheet is a non-elastic material, and the skin-friendly sheet and the base material layer form a flat surface without pre-stress.

[0044] Further, the lateral width of the raised package in the base material layer is 0.8-2.2 mm, and the width of the slit is 0.05-1.5 mm;

[0045] Alternatively, in the case of an elongation factor of 1.3, the lateral width of the raised package in the base material layer is 0.8-3.5 mm, and the width of the slit is 0.3-2.0 mm, and the lateral width of the raised package is 1.8-4.6 times the lateral width of the slit.

[0046] Further, the substrate layer has a raised pack transverse width of 2.5-4.5 mm and a slit width of 1.8-3.8 mm in the 70% area of the substrate layer at an elongation of 2.0, and the raised pack transverse width is 1.0-2.0 times the slit transverse width.

[0047] Further, the skin-friendly sheet has ultrasonic welding connection points B distributed near the longitudinal edges, including connection points B on the skin-friendly sheet and connection points B on the substrate layer, for the transition between different elastic regions.

[0048] Further, the skin-friendly sheet has two side edges in the transverse direction flush with the crotch edge, and the leg opening of the pants has an elastic outer edge corresponding to the substrate layer and a non-elastic outer edge corresponding to the skin-friendly sheet.

[0049] Further, the substrate layer has a double-layer structure formed by turning up the waist opening, and an elastomer is arranged on the top area of the double-layer structure and connected by adhesive, and the lower area has intermittent connection points A arranged by ultrasonic welding.

[0050] 3. Beneficial effects

[0051] Compared with the prior art, the provided technical solution has the following beneficial effects:

[0052] The disposable pants provided by the technical solution can form an array arrangement structure of raised packs and slits in a smaller area by controlling the width, spacing, and combination method of the elastic filaments, which can better contact and fit the skin, improve skin ventilation, and prevent marks from being left, and the surface is smoother, providing a better appearance and wearing experience. BRIEF DESCRIPTION OF DRAWINGS

[0053] Figure 1 is a schematic diagram of an embodiment structure of the pants;

[0054] Figure 2 is a schematic diagram of the unfolded structure of the pants in Figure 1 after being split along the seam edge;

[0055] Figure 3 is a schematic diagram of the cross-sectional structure in the A-A direction of Figure 2;

[0056] Figure 4 is a schematic diagram of the local enlarged view of the waist opening unfolded structure in Figure 3;

[0057] Figure 5 is a schematic diagram of the transverse cross-section (transverse to the surface of the substrate layer) of the middle part of the raised row array;

[0058] Figure 6 is a schematic diagram of the welding area of the waist opening and the skin-friendly sheet.

[0059] Explanation of reference numerals in the schematic diagram:

[0060] 11, first sheet; 12, second sheet; 13, elastic filament; 14, skin-friendly sheet;

[0061] 100, waist opening; 101, elastic body; 102, connection point A;

[0062] 200, waist portion; 201, front waist portion; 202, back waist portion;

[0063] 300, crotch portion; 301, connection point B;

[0064] 401, waist opening; 402, leg opening. DETAILED DESCRIPTION

[0065] For further understanding of this application, reference will be made to the following detailed description and examples with reference to the accompanying drawings.

[0066] The structure, proportion, size, etc. shown in the drawings of the present specification are only used to cooperate with the content disclosed in the specification, so that those skilled in the art can understand and read, and are not used to limit the conditions of the implementation of the present application, so they do not have technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effect and purpose that can be achieved by the present application, should still fall within the scope of the technology disclosed in the present application. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and the like used in the specification are only for the convenience of clear description, and are not used to limit the scope of implementation, and the change or adjustment of the relative relationship, without substantially changing the technical content, is also considered as the implementation of the present application.

[0067] In view of the problem that the traditional sewn disposable shorts do not fit well, there are many improvements in the existing shorts scheme, and the more common one is to directly add an elastic body to achieve a fit effect. However, after adding the elastic body, it is still difficult to control the flatness of the surface of the disposable shorts, and wrinkles and marks are prone to occur.

[0068] In combination with FIG. 1 and FIG. 2, the basic structure of the shorts is shown, and the X direction is the transverse direction and the Y direction is the longitudinal direction. The shorts include a waist opening 100, a waist portion 200 and a crotch portion 300. The waist opening 100 is composed of a front waist opening and a back waist opening, the waist portion 200 includes a front waist portion 201 and a back waist portion 202, the upper end of the waist portion 200 is connected with the waist opening 100, and the lower end is connected with the crotch portion 300.

[0069] The front waist opening, the front waist portion 201 are respectively connected with the corresponding back waist opening, back waist portion 202, that is, the two sides of the transverse direction are longitudinally sealed to form a shorts structure. The upper end opening of the cylinder surrounded by the waist opening 100 is the waist opening 401, and the two openings surrounded by the waist portion 200 and the crotch portion 300 are the leg openings 402.

[0070] The structure of the shorts can be different for different age groups and different regions, such as triangular, T-shaped, etc. The present embodiment is not specifically limited.

[0071] In combination with FIGS. 3 and 4, in an embodiment, the waist opening portion 100, the waistline portion 200, and the crotch portion 300 are mainly composed of a base material layer, which can be a spliced connection or an integral structure, and the base material layer includes a first sheet 11 on the outer side, a second sheet 12 on the inner side, and a plurality of elastic filaments 13 extending in the transverse direction between the first sheet 11 and the second sheet 12.

[0072] In the embodiment, the elastic filaments 13 are arranged at intervals in the longitudinal direction, and the interval between adjacent elastic filaments 13 is 1.2-2.8 mm. In the non-stretched state of the base material layer, the cross-sectional longitudinal dimension of the elastic filaments 13 is 0.05-0.6 mm. The breaking elongation of the elastic filaments 13 is 300-600%, and the elastic filaments 13 have a connecting portion that is bonded to the first sheet 11 and the second sheet 12 in the stretched state, so that the transverse stretching ratio of the base material layer is 1.4-4.0. The connecting portion of the elastic filaments 13 in the stretched state is that the elastic filaments 13 have the connecting portion with the first sheet 11 and the second sheet 12, which is formed by bonding after gluing in the stretched state of the elastic filaments.

[0073] In the non-stretched state of the base material layer, a protruding row array is formed in the transverse direction between the two adjacent elastic filaments 13, the protruding row array is arranged at intervals with protruding bags, the protruding bags are arranged at intervals with slits, and the transverse width of the protruding bags is greater than the transverse width of the slits. In at least 70% of the area of the base material layer, the transverse width of the protruding bags is 0.3-4.0 mm, and the transverse width of the slits is not greater than 2 mm.

[0074] Further, in the 70% area of the base material layer, the transverse width of the protruding bags is 1.6-3.0 mm, and the width of the slits is 0.4-1.3 mm.

[0075] FIG. 5 shows a schematic structure of a transverse cross-section in the middle of the protruding row array, in which D represents the width of the protruding bag, and L represents the width of the slit. The transverse dotted line represents the corresponding position height of the elastic filaments 13. The figure clearly shows the relationship between the protruding bag and the slit. Due to the bending tension of the paper, the two sides of the protruding bag are basically in a straight line state, and an arc is formed at the top; so as to form a smaller slit.

[0076] The first sheet 11 and the second sheet 12 in the base material layer are both non-woven fabrics, and the type of non-woven fabric can be selected as needed. The inner side refers to the side close to the skin when the body is worn, and the outer side refers to the side away from the skin.

[0077] In order to have better skin fit, the elastic yarns 13 between the first sheet 11 and the second sheet 12 extend in the transverse direction, so that the base material layer has a certain elasticity in the transverse direction, and the elastic yarns 13 are arranged at intervals in the longitudinal direction of the base material layer, generally at uniform intervals, and the interval is 1.2-2.8 mm. If the arrangement interval is too small, although the flatness problem is solved, the base material layer will be relatively rigid, and if the interval is too large, the wrinkles formed will be larger, and there will be marks when worn.

[0078] The more optimal interval can be controlled at 1.4-2.4 mm, for example, 1.5 mm, 2.0 mm, and 2.4 mm.

[0079] Similarly, in order to control the size of the wrinkles, the cross-sectional longitudinal dimension of the elastic yarn 13 in the non-stretched state is 0.05-0.6 mm. The cross-sectional longitudinal dimension referred to here is the dimension measured in the longitudinal direction of the same elastic yarn 13. Since its cross-section can be circular or elliptical or other irregular shapes, and due to processing reasons there can be a certain deformation, the cross-sectional equivalent diameter can better represent its thickness. But the size in the longitudinal direction has a more obvious effect on flatness, for example, when using a flat fiber as an elastic yarn, in order to reduce the impact on flatness, the flat fiber can be twisted to form a spiral filament, thereby effectively reducing the size in the longitudinal direction without affecting the cross-sectional area. The cross-sectional longitudinal dimension of each elastic yarn 13 can fluctuate within a certain small range, and the fluctuation can be controlled within 0.2 times the cross-sectional longitudinal dimension, and it is not limited to a specific value corresponding to the cross-sectional longitudinal dimension. Considering the strength and elongation, the cross-sectional longitudinal dimension of the elastic yarn 13 can be further controlled at 0.08-0.4 mm, such as 0.1 mm, 0.3 mm, or 0.12-0.3 mm.

[0080] When stretched, the cross-sectional longitudinal dimension of the elastic yarn 13 will decrease with stretching, so the non-stretched state is used as the basis for detection. It is worth noting that the base material layer in the non-stretched state does not mean that the elastic yarn 13 is in the non-stretched state. Due to the barrier of the wrinkles formed by the first sheet 11 and the second sheet 12, the elastic yarn 13 generally has a certain retraction force. By using the detection value of the base material layer in the non-stretched state as the basis, the demand for flatness can be better met.

[0081] In order to make the surface of the substrate layer more flat, the elastic filaments 13 are adhered to the first sheet 11 and the second sheet 12 in the stretched state, and when the substrate layer is in the non-stretched state, the elastic filaments 13 form corresponding connecting portions between the first sheet 11 and the second sheet 12. The elastic filaments 13 are glued as a whole, and the adhesion effect of the elastic filaments 13 and the substrate layer is good, avoiding the occurrence of large wrinkles. Of course, the elastic filaments 13 can also be intermittently glued relatively densely in the case of large stretching, and when the substrate layer is in the natural state, it still shows the style of overall connection.

[0082] The breaking elongation of the elastic filaments 13 is 330-600%, and in the specific processing, the elastic filaments 13 are stretched to a certain length, and then the composite sheet is obtained. By controlling the longitudinal size, spacing of the cross section of the elastic filaments 13, and the elongation of the elastic filaments 13 when the composite sheet is obtained, the transverse stretching ratio of the substrate layer is 1.4-3.5. Under this ratio relationship, when the substrate layer is in the non-stretched state, the raised rows are arranged with raised packages, and the raised packages form slits between them.

[0083] For some existing elastic clothing products, wrinkles are also formed due to the use of elastic filaments, but most of them are vertical strip-shaped wrinkles formed along the longitudinal direction, or wrinkles with evenly distributed wave crests and troughs in the non-stretched state, and the gaps formed by the troughs are used to increase the air permeability.

[0084] In the above embodiment, a non-uniform structure of raised packages and slits is used, that is, the transverse width of the raised package is greater than the transverse width of the slit. On the one hand, the area of the raised package is reduced, and the area of the slit is also reduced, and the contact surface between the raised package and the skin in a unit area is actually increased. On the other hand, there are more slits in a unit area, although the width of the slit is small, but the air permeation points of the skin are increased, and the air permeability is also improved.

[0085] Due to the limitations of the processing technology and the material itself, a small part of the raised packages will actually show a larger or smaller width, and the slits will also have larger gaps, but it does not affect the overall flatness, so the substrate layer shows that the transverse width of the raised package is 0.3-4.0 mm and the width of the slit is 0.2-1.5 mm in at least 70% of the area. In some embodiments, the transverse width of the raised package is at least 1.5 times the transverse width of the slit.

[0086] In a specific embodiment, the transverse width of the raised package is 1.8-2.4 mm, and the width of the slit is 0.4-0.8 mm. Based on this feature, the substrate layer shows that the transverse width of the raised package is 1.6-3.2 mm and the width of the slit is 0.4-1.2 mm in at least 70% of the area of the substrate layer when the elongation multiple of the substrate layer is 1.3.

[0087] In combination with the above embodiments, in the case of an elongation of 2.0, the raised bumps in the substrate layer have a lateral width of 2.5-4.5 mm, and the slits have a width of 2.0-3.8 mm, and the lateral width of the raised bumps is 1.0-1.8 times the lateral width of the slits. In this feature, the connection points of the slits and the raised bumps on the elastic yarn 13 are substantially equidistant, and based on the control of the parameters and the forming process, a raised bump of a larger width and a slit of a smaller width can be formed. The slits referred to here are the connection points of the slits and the elastic yarn 13 in the non-stretched state, and the corresponding areas after stretching.

[0088] It should be noted that the raised bumps and slits referred to here refer to the features in adjacent structures, and should not be understood as a comparison of a certain raised bump or slit with all other slits or raised bumps. Moreover, in the process, there may be some areas that are not bonded, forming a raised bump or a slit of a larger width, which should not be considered as a basis for the invalidity of the corresponding scheme. In order to more accurately describe, in some embodiments, the "70% area region of the substrate layer" or similar concepts are introduced, and in actual detection, a region can be demarcated as a measurement sample, and the area region of the features with the relevant properties accounts for 70% of the area region of the measurement sample. If the same, it means that the features are the same.

[0089] Due to the above features, the substrate layer surface forms fine and dense raised bumps, which visually and tactilely presents a relatively flat surface, and has good air permeability and better adhesion to the skin, and overall improves the shortcomings of the existing disposable underwear.

[0090] In an embodiment, in order to avoid the substrate layer forming more obvious stripes in the longitudinal direction, the raised bumps between different raised row arrays are arranged in a non-linear manner in the longitudinal direction. In this structure, the raised bumps in different raised row arrays are staggered, and the longitudinal center lines thereof have a certain offset. The non-linear arrangement herein does not require that the two adjacent raised bumps are not on the same straight line, but refers to the fact that the longitudinal raised bumps in a unit area are not arranged in a straight line, or at least 70% of the raised bumps are arranged in a non-linear manner in the longitudinal direction.

[0091] When the raised bumps are arranged in a non-linear manner, the raised bumps in different raised arrays are staggered, and can fill the visual effect of the slits, presenting better flatness.

[0092] In an embodiment, in the 70% area region of the substrate layer, the arching height of the raised bumps relative to the two elastic yarns 13 is 0.3-1.0 mm. By controlling the height, the raised bumps are prevented from collapsing, and obvious regional depressions are not formed, and the overall flatness can be ensured.

[0093] In one embodiment, the breaking elongation of the elastic yarn 13 is 300-600%, the breaking elongation of the base material layer is 100-350%, and the tensile ratio of the elastic yarn 13 to the base material layer is 1.1-3.0, the tensile ratio being the ratio of the breaking elongations of the elastic yarn 13 and the base material layer. In a more preferred case, the tensile ratio is 1.6-2.5, so that the shorts can have a proper stretchability, not be in a tight state, and have a good fit. By selecting the tensile properties of the elastic yarn 13, the shrinkability of the base material layer of the nonwoven fabric can be adapted to form the raised bag with slits.

[0094] The elastic yarn 13 can be a single-fiber yarn structure or a bundle-shaped fiber composed of multiple fibers. When a bundle-shaped fiber is used, the bundle-shaped fiber can be directly bonded between the two layers of the sheet, or multiple fibers can be directly laid and bonded between the two layers of the sheet, and the width of the bundle-shaped fiber is ensured to be within a limited range.

[0095] As the shorts, the waist opening portion 100, the waist circumference portion 200, and the crotch portion 300 can be formed by splicing. In one conceivable embodiment, the waist opening portion 100 and the waist circumference portion 200 are made of a base material layer and are spliced and connected with the crotch portion 300.

[0096] In order to improve the convenience and economy of processing, as one embodiment, the waist opening portion 100, the waist circumference portion 200, and the crotch portion 300 are made of a base material layer of an integral structure. The integral structure means that it does not need to be connected by other means, and the whole is made of a base material layer. The integral structure makes the surface of the shorts appear as a relatively flat plane, which is not easy to crack.

[0097] In one embodiment, the base material layer can directly form a waist circumference opening 401 in the waist opening portion 100, and increase the elastic body 101 inside the waist opening portion 100, so as to have stronger elasticity and prevent loosening.

[0098] As shown in FIG. 3, in another embodiment, the base material layer is turned up to form a double-layer structure in the waist opening portion 100, or the first sheet 11 is turned inwards to form a double-layer structure, and the elastic body 101 is wrapped between the double-layer structure and arranged transversely. The elastic body 101 can have multiple elastic bodies, generally at least two elastic bodies; when the elastic body 101 uses a material with a smaller denier, 10 or more elastic bodies 101 can be arranged. The elastic body 101 can be in a yarn shape, such as spandex yarn, and 5-10 elastic bodies 101 are distributed within a range of 15-30 mm in the longitudinal direction. The double-layer base material layer is glued and bonded, and the elastic body 101 is positioned. In a more preferred embodiment, the ends of the elastic body 101 in the front waist opening portion and the back waist opening portion correspond to each other and deform in the same circumferential plane when stretched.

[0099] Take 5 elastic bodies 101 as an example, which are spaced 3 mm apart and occupy a width range of 12 mm. The width range does not produce obvious indentations and is more comfortable.

[0100] As an alternative to the filamentous elastic body 101, in some embodiments, the elastic body 101 can also be in the form of a film strip, such as an elastic film, an elastic cloth, etc., which can be a planar structure or a plurality of strip structures, without specific limitations.

[0101] Due to the addition of the elastic body 101 with greater elasticity in the double-layer structure, the elastic body 101 is different from the stretchability of the waist portion 200, which is easy to cause greater deformation of the waist portion 200. In order to maintain the flatness of the shorts, in the present embodiment, the elastic body 101 is arranged at the top region of the double-layer structure, and the lower region of the double-layer structure is connected by intermittent connection points A102 through ultrasonic welding. The welded connection points A102 are provided with 1-4 rows in the longitudinal direction, and the interval between the adjacent two connection points A102 in the transverse direction is 3-18 mm. The specific welding method can be hot press welding or ultrasonic welding, and ultrasonic welding is preferred.

[0102] The base material layer between the intermittent connection points A102 formed by ultrasonic welding will form a certain resistance to the contraction of the elastic body 101 of the waist opening portion 100 to the material, thereby helping to prevent deformation and maintain flatness. Further, the welded connection points A102 are provided with 3 rows in the longitudinal direction, and the interval between the adjacent two connection points A102 in the transverse direction is 5-18 mm, for example, 6 mm or 10 mm.

[0103] The shorts in the above embodiments already have various structures and properties of shorts and can be used as disposable underwear. In implementation, the first sheet 11 adopts a water-repellent non-woven fabric, and the second sheet 12 adopts a hydrophilic non-woven fabric. In order to better experience and improve comfort, as a specific embodiment, a skin-friendly sheet 14 is bonded to a part of the inner side of the crotch portion 300.

[0104] The crotch portion 300 corresponds to a relatively sensitive part of the human body, and the addition of the skin-friendly sheet 14 can improve comfort. The skin-friendly sheet 14 can adopt a skin-friendly material such as a cotton non-woven fabric.

[0105] Since the base material layer has elasticity, if the skin-friendly sheet is a non-elastic material, there will be curling when the tension of the materials with different elasticity is combined. In order to avoid this problem, the skin-friendly sheet 14 and the base material layer form a non-pre-stressed composite structure.

[0106] As an implementation, the skin-friendly sheet 14 is made of an elastic material, the elasticity of which is adapted to the elasticity of the base material layer, and the two are combined under no tension or the same tension, thereby avoiding curling after being combined.

[0107] In order to control the overall flat structure, the skin-friendly sheet 14 is made of a non-elastic material, which is combined with the base material layer to form a flat surface without pre-tension. The outer surface still shows a combination of convex packages and slits, and the flat surface of the crotch portion 300 and the waist portion 200 remains flat. Moreover, the crotch portion 300 has better privacy due to the skin-friendly sheet, and the problem of light transmission caused by the stretching of the base material layer is avoided.

[0108] It is worth mentioning that the non-elastic material in this application is relative to the elastic material, which can be non-elastic or slightly elastic. If the elongation of the material in a certain direction exceeds 15% of the original length and cannot be rebounded, it is considered to be a non-elastic material. Without pre-tension means that both composite materials do not exist tension stretching when they are combined. After the skin-friendly sheet 14 is combined with the base material layer, it will not be curled due to the elasticity of a certain material.

[0109] In an embodiment, the skin-friendly sheet 14 is provided with ultrasonic welding connection points B301 near the longitudinal edges of the skin-friendly sheet 14, which are used for the transition of different elastic areas. In a specific implementation, the skin-friendly sheet 14 is glued with the base material layer of the crotch portion 300, and the edge portion is connected by ultrasonic welding to form connection points B301, which extend transversely to the edge area of the crotch portion 300. Of course, ultrasonic welding can also be performed only on the base material layer outside the edge to form multiple rows of welding connection points B301.

[0110] In an embodiment, the skin-friendly sheet 14 is provided with welding connection points B301 on the upper and lower sides of the longitudinal edges of the skin-friendly sheet 14, which extend transversely to the edges of the crotch portion 300.

[0111] Because the skin-friendly sheet 14 and the base material layer have different elasticities, after the base material layer of the crotch portion 300 is combined, the elasticity of the crotch portion 300 is non-elastic or significantly reduced. When the waist portion 200 is stretched transversely, the upper and lower edge areas of the skin-friendly sheet 14 will be torn and easily cracked. By increasing the welding connection points B301, the connection points B301 can block the elasticity of the base material layer to a certain extent, and multiple rows of connection points have a certain depth in the longitudinal direction, forming an elastic transition area, thereby reducing the tearing of the edge area of the skin-friendly sheet 14. Moreover, the connection points B301 also increase the strength of the torn area.

[0112] When the skin-friendly sheet 14 is arranged, it is not required to have a large width, which can be smaller than the base material layer of the crotch portion 300 in the transverse direction, or flush with the base material layer. The shape of the skin-friendly sheet 14 can be rectangular, circular, or other special-shaped structures, which are not limited as long as the requirements of the crotch portion 300 are met.

[0113] ​In combination with Fig. 6, in one embodiment, the two lateral edges of the skin-friendly sheet 14 are flush with the edges of the crotch portion 300, forming a non-elastic outer edge portion, and the non-elastic outer edge portion and the elastic outer edge portion formed by the base material layer enclose the leg opening 402 of the shorts.

[0114] In order to achieve better fit, most of the existing shorts underwear is provided with an elastic body at the leg opening, which is prone to leave marks when worn in summer, and reduces the air permeability of the crotch portion. If all the materials are elastic, it is difficult to combine the skin-friendly sheet flatly in the crotch portion.

[0115] In view of the above problems, in the present embodiment, the leg opening 402 has a non-elastic edge at the part connected to the skin-friendly sheet 14, and the other areas are formed by the base material layer, so that the upper part of the leg opening 402 is elastic and can be better fitted to the outer surface of the leg; the area of the skin-friendly sheet 14 corresponding to the leg opening 402 is a non-elastic area, which ensures good air permeability between the skin-friendly sheet 14 and the inner side of the leg.

[0116] The above describes the embodiments of different parts, and in the absence of obvious limitations, the embodiments of different parts can be combined with each other, and the embodiments are not limited to the explicitly listed combination.

[0117] In one embodiment, the provided shorts include a waist opening 100, a waist portion 200 and a crotch portion 300 at least partially formed by a base material layer, for example, only the waist portion 200 and the crotch portion 300 are formed by the base material layer, or all of them are formed by the base material layer. The base material layer includes a first sheet 11 on the outer side, a second sheet 12 on the inner side, and a plurality of elastic filaments 13 extending transversely between the first sheet 11 and the second sheet 12; the first sheet 11 and the second sheet 12 are both made of non-woven material. Preferably, non-woven fabric is used, the first sheet 11 can be made of water-repellent non-woven fabric, and the second sheet 12 can be made of hydrophilic non-woven fabric, which increases the fit with the skin and has good sweat absorption.

[0118] Further, the two lateral edges of the skin-friendly sheet 14 are flush with the edges of the crotch portion 300, forming a non-elastic outer edge portion, and the non-elastic outer edge portion and the elastic outer edge portion formed by the base material layer enclose the leg opening 402 of the shorts. The base material layer has a material weight in the range of 30 g / m 2 -160 g / m 2 , and a material air permeability less than 4 m / s.

[0119] The elastic filaments 13 are longitudinally spaced apart, and the distance between adjacent elastic filaments 13 is 0.5-3.5 mm, which can be further controlled to be 1.4-2.4 mm. The cross-sectional longitudinal dimension of the elastic filaments 13 is 0.05-0.6 mm, which can be further controlled to be 0.08-0.3 mm in some embodiments. The elastic filaments 13 have connecting portions that are bonded to the first sheet 11 and the second sheet 12 in a stretched state. In a non-stretched state, the base material layer forms a raised row array in the transverse direction between adjacent elastic filaments 13, and the raised row array is spaced apart with raised packages. The raised packages are separated by slits, and the transverse width of the raised packages is greater than the transverse width of the slits. The elastic body 101 is bonded to the waist opening portion 100. The skin-friendly sheet 14 is bonded to a portion of the inner side of the crotch portion 300.

[0120] Based on this embodiment, in specific implementation, when the elastic filaments 13 meet the set distance interval, the elastic filaments 13 can have a greater longitudinal width, for example, 1.2 mm, 1.3 mm, etc., for different regional populations. It should be noted that the surface of the base material layer must be a combination of raised packages and slits with a width relationship to improve the flatness of the base material layer and ensure the multi-point breathability of the skin. For example, when the technology meets the conditions, the transverse width of the raised package is 1.0-1.2 mm, and the width of the slit is 0.1-0.3 mm.

[0121] Because the raised packages or slits of the flexible material cannot be fixed in size and will be in a fluctuating state within a certain interval, the more optimal value can only be represented by a range. The above and subsequent content that designates specific numerical values are not specific material properties, but generally refer to the overall performance of the numerical value characteristics. For example, if more than 70% of the data is consistent with the given value, the numerical value can be used to represent it, and it is not required that every data is completely consistent with the given value.

[0122] In one embodiment, the transverse width of the raised package is 1.0-3.5 mm, and the width of the slit is 0.2-1.3 mm in at least 70% of the area of the base material layer. The transverse width of the raised package is 1.5 times or more than the transverse width of the slit.

[0123] In combination with the above embodiment, the denier of the elastic filaments 13 is 70-300 denier, preferably 120-300 denier. Here, "denier" refers to a unit of fiber. The transverse stretch ratio of the base material layer is 2.0-3.5, and the cross-sectional longitudinal dimension of the elastic filaments 13 is 0.08-0.4 mm. This embodiment uses elastic filaments 13 with a smaller denier for the production and processing of underpants, and controls the cross-sectional longitudinal dimension to avoid large fluctuations in the material surface and obtain better flatness.

[0124] In combination with the above embodiments, in one embodiment, the shorts include a waist opening portion 100, a waist portion 200, and a crotch portion 300 composed of a base material layer including a first sheet 11 on the outer side, a second sheet 12 on the inner side, and a plurality of elastic filaments 13 extending in the transverse direction between the first sheet 11 and the second sheet 12; the base material layer exhibits no elasticity in the longitudinal direction, i.e., no elasticity or only low elasticity.

[0125] In this embodiment, the elastic filaments 13 are arranged at intervals in the longitudinal direction, and the distance between adjacent elastic filaments 13 is 1.2-2.8 mm. The elastic filaments 13 have a connecting portion that is bonded to the first sheet 11 and the second sheet 12 in the stretched state. In the non-stretched state, the base material layer forms a raised row array between adjacent elastic filaments 13 in the transverse direction, and raised packets are arranged at intervals in the raised row array. The raised packets form slits between them, and the transverse width of the raised packets is greater than the transverse width of the slits, so that the material has an air permeability in the range of 0.5-4.0 m / s.

[0126] A portion of the inner side of the crotch portion 300 is bonded to a skin-friendly sheet 14, which is a non-elastic material and forms a flat surface without pre-stress with the base material layer.

[0127] The "air permeability" refers to the rate of airflow perpendicularly through a specified test area within a specified time under a specified pressure difference. The air permeability is determined according to GB / T 28005, with a pressure drop of 100 Pa and a sample area of 20 cm 2 .

[0128] In this embodiment, the raised packets are arranged at a relatively high density, which reduces the air permeability of the material. However, the increased number of slits and the more distributed points increase the uniformity of skin air permeability. Preferably, in the non-punched area of the base material layer, the air permeability is in the range of 1.4-2.8 m / s.

[0129] In one specific way, the transverse width of the raised packets is 0.8-2.2 mm, and the width of the slits is 0.05-1.5 mm. In this regard, in the case where the elongation multiple of the base material layer is 1.30, the transverse width of the raised packets is 1.2-2.8 mm, the width of the slits is 0.3-2.0 mm, and the transverse width of the raised packets is 1.8-4.6 times the transverse width of the slits in the area of 70% of the base material layer.

[0130] In the case where the elongation multiple of the base material layer is 2.0, the transverse width of the raised packets is 2.5-4.5 mm, the width of the slits is 1.8-3.8 mm, and the transverse width of the raised packets is 1.0-1.8 times the transverse width of the slits in the area of 70% of the base material layer.

[0131] The ultrasonic welding connection points B301 are distributed near the longitudinal edges of the skin-friendly sheet 14, including the connection points B301 on the skin-friendly sheet 14 and the connection points B301 on the substrate layer. The lateral edges of the skin-friendly sheet 14 are flush with the edges of the crotch portion 300, and the leg opening 402 of the pants has an elastic outer edge portion corresponding to the substrate layer and a non-elastic outer edge portion corresponding to the skin-friendly sheet 14. The substrate layer is doubled at the waist opening 100, and the elastic body 101 is arranged on the top area of the double-layer structure and is connected by adhesive bonding; the lower area is provided with intermittent connection points A102 by ultrasonic welding.

[0132] In an embodiment, in combination with the above embodiment, the substrate layer further comprises a third sheet between the first sheet 11 and the second sheet 12. The third sheet can be close to the first sheet 11 or close to the second sheet, for example, integrated with the second sheet. The third sheet can be a non-woven fabric, which can improve the stiffness of the material.

[0133] During processing, by applying glue in the stretched state of the elastic yarn 13, controlling the stretched length, and then combining with the unfolded first sheet 11 and the second sheet 12, different processing technologies such as heat drying, cooling, and bonding can be used to form a surface structure of the raised package and the slit on the surface of the substrate layer after compounding. The length of the connection point of the raised package and the slit on the elastic yarn 13 is basically equal, and in the unfolded or non-stretched state, it presents a better planar structure.

[0134] The above-mentioned adhesive bonding or adhesive bonding can be direct bonding of adhesive or bonding under the condition of applying hot melt adhesive, such as one or more combinations of polyamide, polyurethane, ethylene-vinyl acetate copolymer, etc.

[0135] For the combined area of the first sheet 11 and the second sheet 12, except for the space occupied by the elastic yarn, the rest can be glued for adhesive bonding without limitation.

[0136] The above description of the present application and its embodiments is illustrative and not limiting, and the embodiments shown in the drawings are only one of the embodiments of the present application, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by it, without departing from the creative purpose of the present application, similar structure and embodiments can be designed without creativity, which should belong to the protection scope of the present application.

Claims

1. A disposable pant comprising a waist opening portion (100), a waist portion (200) and a crotch portion (300) mainly composed of a base material layer, characterized in that: the base material layer comprises a first sheet (11) on the outer side, a second sheet (12) on the inner side, and a plurality of elastic filaments (13) extending transversely between the first sheet (11) and the second sheet (12) ; wherein the elastic filaments (13) are arranged longitudinally at intervals, and the interval between adjacent elastic filaments (13) is 1.2-2.8 mm; in a non-stretched state, the cross-sectional longitudinal dimension of the elastic filaments (13) is 0.05-0.6 mm; the breaking elongation of the elastic filaments (13) is 300-600%, and the elastic filaments (13) have connecting portions adhered to the first sheet (11) and the second sheet (12) in a stretched state, so that the transverse stretching ratio of the base material layer is 1.4-3.5; in a non-stretched state, the base material layer forms a convex row array along the transverse direction between adjacent two elastic filaments (13), and convex packets are arranged at intervals in the convex row array, forming slits between the convex packets, and the transverse width of the convex packets is greater than that of the slits; in at least 70% of the area of the base material layer, the transverse width of the convex packets is 0.3-4.0 mm, and the transverse width of the slits is not greater than 2 mm; the stretching ratio of the elastic filaments (13) to the base material layer is 1.1-3.0, and the stretching ratio is the ratio of the breaking elongation of the elastic filaments (13) to that of the base material layer; in 70% of the area of the base material layer, the arching height of the convex packets relative to the two elastic filaments (13) is 0.3-1.0 mm; in the longitudinal direction, the convex packets between different convex row arrays are arranged in a non-linear state; the waist opening portion (100), the waist portion (200) and the crotch portion (300) are composed of the base material layer in an integrated structure; the base material layer forms a double-layer structure in the waist opening portion (100), and an elastic body arranged transversely is wrapped between the double-layer structure; the elastic body is in the form of a filament, and 5-10 elastic bodies are distributed in a range of 15-30 mm in the longitudinal direction; or the elastic body is in the form of a film strip, and the elastic body is distributed in a range of 15-30 mm in the longitudinal direction; an elastic body (101) is arranged in the top area of the double-layer structure and connected by adhesive; intermittent connecting points A (102) are arranged in the lower area by welding; the connecting points A (102) are arranged in 1-4 rows in the longitudinal direction, and the interval between adjacent two connecting points A (102) in the transverse direction is 5-18 mm; a skin-friendly sheet (14) is bonded to part of the area on the inner side of the crotch portion (300) ; the skin-friendly sheet (14) and the base material layer form a non-prestressed composite structure; the skin-friendly sheet (14) is made of a non-elastic material, and forms a flat surface with the base material layer in a non-prestressed manner; ultrasonic welding connecting points B (301) arranged transversely are distributed near the longitudinal edges of the skin-friendly sheet (14), and used for the transition between different elastic areas; the two side edges of the skin-friendly sheet (14) are flush with the edges of the crotch portion (300), forming a non-elastic outer edge portion, and the non-elastic outer edge portion and the elastic outer edge portion formed by the base material layer enclose the leg opening (402) of the pant. ​ ​ ​ ​ 2. The disposable pants of claim 1, wherein: ​ 3. The disposable pant of Claim 1, characterized in that: ​ 4. The disposable pant of claim 1, wherein: ​ 5. The disposable pant of claim 1, wherein: ​ 6. The disposable pant of claim 5, characterized in that: ​ 7. The disposable pant of claim 6, characterized in that: ​ ​ 8. The disposable pant of claim 6, wherein: ​ 9. The disposable pant of claim 8, wherein: ​ 10. The disposable pant of claim 1, wherein: ​ 11. The disposable pant of claim 10, characterized in that: ​ 12. The disposable pant of claim 10, wherein: ​ 13. The disposable pants of any of claims 10-12, characterized in that: ​ 14. The disposable pant of claim 10, wherein: ​ 15. A disposable pant comprising a waist opening (100), a waistband (200) and a crotch (300) at least partially comprised of a substrate layer, characterized in that: The substrate layer comprises a first sheet (11) on the outer side, a second sheet (12) on the inner side, and a plurality of elastic filaments (13) extending transversely between the first sheet (11) and the second sheet (12); The elastic filaments (13) are arranged at intervals along the longitudinal direction, and the interval between adjacent elastic filaments (13) is 0.5-3.5 mm; the cross-sectional longitudinal dimension of the elastic filaments (13) is 0.05-0.6 mm; the elastic filaments (13) have connecting portions that are bonded to the first sheet (11) and the second sheet (12) in the stretched state; In the non-stretched state, the substrate layer forms a raised row array along the transverse direction between adjacent two elastic filaments (13), and the raised row array is arranged at intervals with raised packets, and the raised packets form slits therebetween, and the transverse width of the raised packets is greater than the transverse width of the slits; The elastic body is bonded to the waist opening portion (100); A skin-friendly sheet (14) is bonded to a partial area on the inner side of the crotch portion (300).

16. The disposable pant of claim 15, wherein: The two lateral edges of the skin-friendly sheet (14) are flush with the edges of the crotch portion (300) to form a non-elastic outer edge portion, and the non-elastic outer edge portion and the non-elastic outer edge portion formed by the substrate layer enclose the leg opening (402) of the shorts.

17. The disposable pant of claim 15, wherein: In at least 70% of the area of the substrate layer, the transverse width of the raised packet is 1.0-3.5 mm, the width of the slit is 0.2-1.3 mm, and the transverse width of the raised packet is at least 1.5 times the transverse width of the slit.

18. The disposable pant of claim 15, wherein: The denier of the elastic filaments (13) is 70-300 denier, and the transverse stretching ratio of the substrate layer is 2.0-3.5; the cross-sectional longitudinal dimension of the elastic filaments (13) is 0.08-0.4 mm.

19. A disposable pant comprising a waist opening (100), a waistband (200) and a crotch portion (300) at least partially comprised of a substrate layer, characterized in that: The substrate layer comprises a first sheet (11) on the outer side, a second sheet (12) on the inner side, and a plurality of elastic filaments (13) extending transversely between the first sheet (11) and the second sheet (12); the substrate layer exhibits non-elasticity in the longitudinal direction; The elastic filaments (13) are arranged at intervals along the longitudinal direction, and the interval between adjacent elastic filaments (13) is 1.2-2.8 mm, and the cross-sectional longitudinal dimension of the elastic filaments (13) is 0.08-0.6 mm; In the non-stretched state, the substrate layer forms a raised row array along the transverse direction between adjacent two elastic filaments (13), and the raised row array is arranged at intervals with raised packets, and the raised packets form slits therebetween, and the transverse width of the raised packets is greater than the transverse width of the slits, so that the material permeability is in the range of 0.5-4.0 m / s; A skin-friendly sheet (14) is bonded to a partial area on the inner side of the crotch portion (300), and the skin-friendly sheet (14) is a non-elastic material and is combined with the substrate layer to form a flat surface without pre-stress. The transverse width of the raised packet in the substrate layer is 0.8-2.2 mm, and the width of the slit is 0.05-1.5 mm; 20. The disposable pants of claim 19, wherein: Or, in the case where the substrate layer is stretched by a factor of 1.3, in 70% of the area of the substrate layer, the transverse width of the raised packet is 0.8-3.5 mm, the width of the slit is 0.3-2.0 mm, and the transverse width of the raised packet is 1.8-4.6 times the transverse width of the slit. ​ 21. The disposable pants of claim 19, wherein: The convex package transverse width is 2.5-4.5mm, the width of the slit is 1.8-3.8mm, and the convex package transverse width is 1.0-2.0 times the width of the slit in the substrate layer 70% area region at the elongation multiple of 2.

0.

22. The disposable pants of claim 19, wherein: The ultrasonic welding connection points B (301) are distributed near the longitudinal edges of the skin-friendly sheet (14), including the connection points B (301) on the skin-friendly sheet (14) and the connection points B (301) on the substrate layer, which are used for the transition of different elastic regions.

23. The disposable pants of claim 19, wherein: The substrate layer is folded at the waist opening (100) to form a double-layer structure, an elastomer is arranged at the top area of the double-layer structure, and the lower area is connected by ultrasonic welding to form intermittent connection points A (102).

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