Pants-type absorbent article with micro-pressure

Abstract

The utility model discloses a pants-type absorption product with micro-pressure. The pants-type absorption product comprises a front piece and a back piece, a back sheet; the rear piece and the front piece are generally symmetrically arranged along the transverse folding line; a crotch region; wherein further included is a plurality of elastic rubber bands located in the back sheet, wherein the plurality of elastic rubber bands includes: a) 2 to 300 elastic rubber bands, b) an average rubber band pitch of 1 to 50 mm, c) an average fineness of 50 to 1000 deniers, and d) an average pre-strain of 150% or more; the front sheet has an elongation in the longitudinal direction to be 1-3 times the elongation in the transverse direction in a region where the plurality of elastic rubber bands are arranged. Therefore, comfortable micro-pressure can be applied to the lower abdomen of the user, so that various discomfort (such as spasm or cold hands and feet) in the menstrual period can be effectively relieved.

Description

TECHNICAL FIELD

[0001] The present utility model relates to the field of disposable sanitary products, in particular to a pant-type absorbent article with micro-pressure, which can apply comfortable micro-pressure to the user's lower abdomen when worn, thereby effectively relieving various discomforts (such as cramps or cold hands and feet, etc.) during the menstrual period. BACKGROUND

[0002] Women have 5-7 days of menstrual period every month, and menstrual blood will be discharged outside during the menstrual period. From the early use of toilet paper to the current economic development, sanitary napkins and sanitary tampons have appeared to absorb menstrual blood. Generally speaking, during the female physiological period, sanitary napkins or sanitary tampons are placed at the bottom of the underpants to absorb the menstrual blood generated during the physiological period. However, the sanitary cotton is disposable and must be discarded after use, which inevitably generates a large amount of garbage and causes environmental burden.

[0003] As an alternative to sanitary napkins or sanitary tampons, pant-type absorbent articles that allow women to wear during the menstrual period or physiological period have been developed, which can be widely referred to as menstrual pants, etc. Menstrual pants can also be called sanitary pants, which are disposable sanitary products. Due to their convenience, comfort, good adsorption effect, etc., they are deeply loved by the female group.

[0004] Women will experience various physical discomforts such as waist soreness, fatigue, edema, pain, etc. during the period from the pre-menstrual period to the menstrual period, and will have problems in performing the same actions as usual. It is generally believed that the above discomforts during the pre-menstrual period to the menstrual period are caused by blood stasis and poor blood circulation. As a means to relieve the above discomforts, women often consider sticking a warm uterus patch or a warm baby to the lower abdomen position or pressing the lower abdomen position with their hands to promote blood circulation in the lower abdomen position, thereby ultimately reducing or even eliminating various physical discomforts.

[0005] However, the use of warm uterus patches or warm babies to overcome menstrual discomforts has the disadvantage of needing to carry these accessories at all times and often requiring underpants or menstrual pants to have a special part for reliably placing the warm uterus patch or the warm baby. The disadvantage of pressing the lower abdomen position with the hands is that it makes women unable to free their hands for daily work.

[0006] The existing shorts for the physiological period are designed for wearing during the physiological period and do not consider how to wear them before the physiological period to eliminate discomfort.

[0007] In summary, there is a need in the art to provide a pant-type absorbent article that can apply comfortable micro-pressure to the user's lower abdomen when worn, thereby effectively relieving various discomforts (such as cramps or cold hands and feet, etc.) during the menstrual period. SUMMARY

[0008] Therefore, the task of the present application is to provide a pant-type absorbent article with micro-pressure, by which at least some of the above-mentioned disadvantages of the prior art are overcome.

[0009] To accomplish the above task, the present application provides a pant-type absorbent article with micro-pressure, which can be folded and combined to a closed type with a waist opening and a leg opening by means of an open one-piece pant main body, comprising: a front panel extending generally along a longitudinal center line of the pant-type absorbent article and having a pair of front panel side edges arranged generally symmetrically about the longitudinal center line and a front waist edge for forming a waist opening, wherein a plurality of waist elastic threads are arranged in the front panel in parallel and spaced apart from each other; a back panel extending generally along the longitudinal center line of the pant-type absorbent article and having a pair of back panel side edges arranged generally symmetrically about the longitudinal center line and a back waist edge for forming a waist opening; the back panel is arranged generally symmetrically with the front panel along a transverse folding line; a crotch region between the front panel and the back panel and provided with an absorbent core for absorbing body fluids; wherein further comprising a plurality of elastic threads arranged generally in a smooth concave arc shape in the front panel, wherein the plurality of elastic threads comprises: a) 2 to 300 elastic threads, b) an average elastic thread spacing of 1 to 50 mm, c) an average fineness of 50 to 1000 denier, and d) an average pre-strain of 150% or more; wherein the plurality of elastic threads comprises: a first section and a second section respectively extending obliquely from the two front panel side edges of the front panel, wherein the opposite two outermost edges of the first section and the second section along the transverse direction are spaced apart from each other by a first width of 300 to 900 mm; a third section arranged longitudinally inward between the first section and the second section and arc-shaped protruding towards the crotch region, wherein the third section smoothly transitions with the first section and the second section at its two generally symmetric ends, wherein the innermost edges of the third section are longitudinally spaced apart from the front waist edge of the front panel by a first height of 10 to 180 mm.

[0010] Thus, compared with the prior art, the pant-type absorbent article according to the present application realizes the function of applying a comfortable micro-pressure to the user's lower abdomen when the absorbent article is worn by the user, thereby effectively relieving various discomforts (such as cramps or cold hands and feet) during menstruation, thereby effectively improving the user's satisfaction and consumption experience. Additionally, wearing the pant-type absorbent article according to the present application, the visible stepped portion or "swim ring" caused by the extrusion of the abdominal meat in the prior art does not occur.

[0011] According to another aspect of the present application, a pant-type absorbent article with micro-pressure is provided, which can be folded and combined to a closed type with a waist opening and a leg opening by means of an opened integrally formed pant main body, comprising: a front panel extending generally along a longitudinal center line of the pant-type absorbent article and having a pair of front panel side edges arranged generally symmetrically about the longitudinal center line and a front waist edge for forming a waist opening, wherein a plurality of waist elastic threads are arranged in the front panel in parallel with each other; a back panel extending generally along the longitudinal center line of the pant-type absorbent article and having a pair of back panel side edges arranged generally symmetrically about the longitudinal center line and a back waist edge for forming a waist opening; the back panel is arranged generally symmetrically with the front panel along a transverse folding line; a crotch region between the front panel and the back panel and provided with an absorbent core for absorbing body fluids; wherein further comprising a plurality of elastic threads arranged in a generally smooth concave arc shape in the front panel, wherein the plurality of elastic threads comprises: a) 2 to 300 elastic threads, b) an average thread spacing of 1 to 50 mm, c) an average fineness of 50 to 1000 denier, and d) an average pre-strain of 150% or more; wherein the plurality of elastic threads comprises: a first section and a second section respectively extending obliquely from the front waist edge of the front panel, wherein the opposite two outermost edges of the first section and the second section along the transverse direction are spaced apart from each other by a second width of 300 to 900 mm; a third section arranged between the first section and the second section longitudinally inwardly and arc-shaped protruding towards the crotch region, wherein the opposite two ends of the third section are smoothly transitioned with the first section and the second section, and wherein the innermost edges of the third section are longitudinally spaced apart from the front waist edge of the front panel by a second height of 10 to 180 mm.

[0012] As a preferred aspect, the elongation of the front panel in the longitudinal direction in the region where the plurality of elastic threads are arranged is 1 to 3 times the elongation in the transverse direction.

[0013] As a preferred aspect, the elongation recovery rate of the back panel in the longitudinal direction is 1 to 2 times the elongation recovery rate in the transverse direction.

[0014] As a preferred aspect, the first width between the opposite two outermost edges of the first section and the second section along the transverse direction is 500 to 700 mm, and the first height between the innermost edges of the third section and the front waist edge of the front panel in the longitudinal direction is 20 to 150 mm.

[0015] As a preferred aspect, the second width between the opposite two outermost edges of the first section and the second section along the transverse direction is 500 to 700 mm, and the second height between the innermost edges of the third section and the front waist edge of the front panel in the longitudinal direction is 30 to 120 mm.

[0016] As a preferred aspect, the front panel includes an inner layer of nonwoven fabric on the body-facing side and an outer layer of nonwoven fabric on the garment-facing side, wherein the elastic gusset is disposed between the inner and outer layers of nonwoven fabric, wherein the inner and outer layers of nonwoven fabric are designed to be substantially inelastic or non-extensible.

[0017] As a preferred aspect, the innermost edge of the third section of the elastic gusset in the longitudinal direction substantially conforms to the most convex portion of the user's lower abdomen when the pant-type absorbent article is in the closed state.

[0018] As a preferred aspect, the absorbent core includes an absorbent layer and a liquid-impervious backsheet, and is designed to be removably or replaceably secured to the inside of the crotch region.

[0019] As a preferred aspect, the absorbent core is a sewn absorbent structure in the crotch region, which includes a wicking layer on the body-facing side, an absorbent layer directly below the wicking layer, and an outermost barrier layer for preventing the exudation of body fluids. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a flat view of a prior art pant-type absorbent article, wherein the pant-type absorbent article is in an open state;

[0021] Figure 2 is a front view of the main body of a prior art pant-type absorbent article that has been folded, wherein the pant-type absorbent article is in a closed state;

[0022] Figure 3 is a flat view of a pant-type absorbent article according to the present application, wherein the pant-type absorbent article is in an open state;

[0023] Figure 4 is a front view of a pant-type absorbent article according to the present application that has been folded, wherein the pant-type absorbent article is in a closed state;

[0024] Figure 5 is a partial enlarged view showing the lower abdomen of a wearer when the wearer is wearing the pant-type absorbent article according to the present application;

[0025] Figure 6 is a side view showing the lower abdomen of a wearer when the wearer is wearing the pant-type absorbent article according to the present application;

[0026] Figure 7 is a flat view of a pant-type absorbent article according to another possible embodiment of the present application, wherein the pant-type absorbent article is in an open state.

[0027] REFERENCE NUMERALS

[0028] 10, 100 - pant-type absorbent article; 11, 101 - front panel; 11A, 101A - front waist edge;

[0029] 12, 102 - back panel; 12A, 102A - back waist edge; 12C, 102C - waist elastic;

[0030] 13, 103 - crotch region; 14 - leg elastic;

[0031] 11B, 101B - front panel side edge; 12B, 102B - back panel side edge;

[0032] 111 - elastic elastics; 111A, 111B - first and second segments; 111C - third segment

[0033] L - longitudinal centerline; T - transverse fold line; X - transverse direction; Y - longitudinal direction;

[0034] 15, 105 - waist opening; 17, 107 - waist seal; 18, 108 - absorbent core;

[0035] 201 - pubic region; h1 - first height; h2 - second height; w1 - first width;

[0036] w2 - second width; DETAILED DESCRIPTION

[0037] It will be understood by those within the art that the following detailed description of the specific embodiments is not to be taken in a limiting sense, and is not intended to be limiting of the broader aspects of the disclosure.

[0038] The pant-type absorbent article according to the present application is specifically a pant-type absorbent article with micro-pressure, comprising: a front panel, the front panel extending generally along a longitudinal centerline of the pant-type absorbent article and having a pair of front panel side edges arranged generally symmetrically about the longitudinal centerline and a front waist edge for forming a waist opening, wherein a plurality of waist elastics are arranged in the front panel in parallel and spaced apart from each other; a back panel, the back panel extending generally along the longitudinal centerline of the pant-type absorbent article and having a pair of back panel side edges arranged generally symmetrically about the longitudinal centerline and a back waist edge for forming a waist opening; the back panel and the front panel are arranged generally symmetrically along a transverse fold line; a crotch region located between the front panel and the back panel and provided with an absorbent core for absorbing body fluids; wherein further comprising a plurality of elastic elastics arranged in a generally smooth concave arc shape in the front panel, wherein the plurality of elastic elastics comprises: a) 2 to 300 elastic elastics, b) an average elastic spacing of 1 millimeter to 30 millimeters, c) an average fineness of 50 to 1000 denier, and d) an average pre-strain of 150% or more; so that the elongation of the front panel in the longitudinal direction in the region where the plurality of elastic elastics are arranged is 1 to 3 times the elongation in the transverse direction.

[0039] Certain directional terms used in describing the drawings hereinafter, such as "inner", "outer", "upper", "lower" and other like terms will be understood to have their normal meanings and refer to those orientations involved in a normal viewing of the drawings. Unless otherwise indicated, the directional terms described herein are in accordance with the normal directions as understood by those skilled in the art.

[0040] The terms "first", "the first", "second", "the second", and similar terms in the present utility model do not denote any order, number or importance in the present utility model, but are used to distinguish one part from other parts.

[0041] Terminology

[0042] The term "disposable" or "throwaway" is used herein to describe absorbent articles that are not generally intended to be laundered or otherwise reconditioned or reused as absorbent articles (e.g., they are intended to be discarded after a single use and can also be configured to be recyclable, composted, or disposed of in another environmentally compatible manner). Embodiments of the absorbent pants described herein are disposable.

[0043] The term "pant-type absorbent article" (also referred to as "catamenial pant", "pant-type absorbent article", and "menstrual pant") refers herein to a disposable absorbent article or baby diaper designed to be worn by an ambulatory wearer having a continuous peripheral waist opening and laterally opposed continuous peripheral leg openings. For the avoidance of doubt, an adult incontinence article can be in the form of an absorbent pant. The pant can be configured with a continuous or closed waist opening and at least one continuous closed leg opening as packaged prior to being donned by the wearer. The pant can be preformed by a variety of techniques including, but not limited to, the use of any refastenable closure members and / or permanent closure members (e.g., stitching, thermal bonding, pressure welding, adhesives, cohesive bonds, mechanical fasteners, etc.) to join portions of the article together. The pant can be preformed about the periphery of the article at any location in the waist region (e.g., side edge fastened or seamed, front waist fastened or seamed, back waist fastened or seamed, or combinations thereof).

[0044] With respect to structural terminology, the term "disposed" or "having" is used to mean that one or more elements are located on or in another element or elements such that they (i) are in physical contact with the other element or elements, and (ii) are mounted to or integrated with the other element or elements.

[0045] As used herein, the term "joined" includes configurations in which an element is directly secured to another element by affixing the element to the other either element, and configurations in which the element is indirectly secured to the other element by affixing the element to an intermediate member that, in turn, is affixed to the other element.

[0046] As used herein, “integral” means a configuration in which an element is generated from or derived from a component or part of an article, as opposed to an element being joined to a component. “Integral formation” means generating an element from an underlying material or part thereof by, for example, molding, forming, and / or remodeling the underlying material.

[0047] "Proximal" and "distal" refer to the position of an element that is relatively close to or far from the longitudinal or lateral centerline of the structure, respectively (for example, relative to the same longitudinal axis, the proximal edge of a longitudinally extending element is closer to the longitudinal axis than the distal edge of the same element).

[0048] "Facing the body" and "facing the clothing" refer to the relative positions of components or the relative positions of the surfaces of a component or group of components, respectively. "Facing the body" means that during wear, a component or surface is closer to the wearer than some other components or surfaces. "Facing the clothing" means that during wear, a component or surface is further away from the wearer than some other components or surfaces (i.e., the component or surface is closer to the wearer's clothing, which may be worn over a disposable absorbent material).

[0049] The term "opening" refers to the initial separation of opposite waist areas before or during the wearing of an article, thus not forming a continuous waist and leg opening.

[0050] The term "closure" refers to the permanent or repeatable secure joining of opposing waist areas during encapsulation to form a continuous waist opening and leg opening.

[0051] As used herein, the term "bonding" refers to the joining, adhesion, connection, attachment, etc., of two elements. Two elements are considered to be bonded together when they are joined, adhered, connected, attached, etc., directly or indirectly to each other, such as when bonded to an intermediate element. Bonding can be performed via, for example, adhesives, pressure bonding, thermal bonding, ultrasonic bonding, splicing, stitching, and / or welding.

[0052] Pant-type absorbent articles

[0053] Figure 1 The image shows a flat view of the pant body of a conventional trouser-type absorbent article 10, with the trouser-type absorbent article 10 in an open position. As is well known to those skilled in the art, Figure 1 The absorbent trousers 10 shown herein are formed by folding and joining a one-piece trouser body (e.g., made of a nonwoven fabric or other suitable nonwoven material that is substantially inelastic or stretchy) to a closed form with a waist opening and leg openings. The trousers 10 formed by this closure is as follows: Figure 2As shown, and the pant-type absorbent article 10 generally comprises a front panel 11, a back panel 12 and a crotch region 13 arranged between the front panel 11 and the back panel 12.

[0054] Here, as shown, Figure 1 The front panel 11 generally extends along a longitudinal center line L of the pant-type absorbent article 10 and has a pair of front panel side edges 11B (only the side edge on the right side is shown here) arranged generally symmetrically about the longitudinal center line and a front waist edge 11A for forming a waist opening, while the back panel 12 generally extends along the longitudinal center line L of the pant-type absorbent article 10 and has a pair of back panel side edges 12B (only the side edge on the right side is shown here) arranged generally symmetrically about the longitudinal center line and a back waist edge 12A for forming a waist opening, wherein the back panel 12 and the front panel 11 are arranged generally symmetrically along a transverse fold line T. Figure 1 Figure 1 The front panel 11 and the back panel 12 are arranged generally symmetrically along the fold line T and can be folded and interconnected laterally along the transverse fold line T to form a waist region having a waist opening 15 for accommodating a wearer's waist therein defined by both the front waist edge 11A and the back waist edge 12A and two leg openings for the wearer's thighs to pass through: a first leg opening 16A and a second leg opening 16B, the boundaries of which are defined by the pant edges (or can be referred to as leg openings) 19 in the front panel 11 and the back panel 12.

[0055] The absorbent core 18, which has a known structure and absorbent composition, is removably or replaceably fixed inside the crotch region 13 (the inside refers to the side facing the wearer's crotch). As an example, the absorbent core 18 comprises, from inside to outside, an absorbent surface layer and a liquid-impermeable bottom layer, and the material of the absorbent surface layer is a non-woven fabric, such as a spunlace non-woven fabric, a spunbond non-woven fabric, a spunmelt non-woven fabric, or a thermal air non-woven fabric. By using a non-woven fabric, the effects of moisture resistance, air permeability, flexibility, lightness and thinness can be achieved, and the cost is low. Since the non-woven fabric has a certain absorbency, the sanitary napkin of the present application can be used alone when the menstrual flow is small, and is light and breathable. In addition, the air permeability of the liquid-impermeable bottom layer is not less than 10 cubic meters per square meter per minute, so as to further improve the air permeability of the sanitary napkin.

[0056] The fixing mode of the absorbent core 18 to the crotch region 13 of the pant-type absorbent article 10 can be selectively set according to actual conditions. As an example, the absorbent core 18 is fixed to the inside of the crotch region 13 of the pant-type absorbent article 10 by glue or magic buckle.

[0057] The fixing mode of the absorbent core 18 to the crotch region 13 of the pant-type absorbent article 10 can be selectively set according to actual conditions. As an example, the absorbent core 18 is fixed to the inside of the crotch region 13 of the pant-type absorbent article 10 by glue or magic buckle.

[0058] ​It will be appreciated by those skilled in the art that although the absorbent core 18 is designed to be removable and provided as a separate component from the pant-type absorbent article 10 (which allows the wearer to replace the absorbent core 18 during a single use of the pant-type absorbent article), it is also possible that the absorbent core 18 is an absorbent structure sewn into the crotch region 13, for example, including a wicking layer (made of 100% polyester fibers) located closest to the body side, an absorbent layer (made of 85% polyester fibers and 15% polyamide fibers) located directly below the wicking layer for absorbing menstrual blood during the menstrual period, and a barrier layer (made of 100% polyurethane) located outermost to adhere to the clothing of the absorbent pant and to prevent the exudation of body fluids. The menstrual pant or absorbent pant with such a non-removable absorbent core also falls within the scope of the present application.

[0059] Further, the pant-type absorbent article 10 can also have a plurality of leg cuff elastics 14 located in the back sheet 12 and extending in the transverse direction for forming leg cuffs or leg opening barriers, wherein the leg cuff elastics 14 can be designed to be sandwiched between the inner nonwoven fabric and the outer nonwoven fabric of the back sheet 12. Each leg cuff elastic 14 that can be used as a leg opening barrier can be a single strand of elastomeric material, for example Figure 1 three strands of elastomeric material as exemplified in FIG. 6. It will be appreciated that the number of strands of the leg cuff elastics 14 can be optional, which mainly depends on the strand downforce of the leg cuffs.

[0060] Meanwhile, a plurality of waist elastics 12C are sandwiched between the inner nonwoven fabric and the outer nonwoven fabric of the back sheet 12 near the back waist edge 12A in a manner that they are aligned parallel to each other and can be uniformly spaced apart from each other. By way of example only, the spacing between the waist elastics 12C in the back sheet 12 can be about 0.5 mm or more, preferably 0.5 to 10 mm. Here, the waist elastics 12C are already stretched to a certain stretch ratio when laminated between the inner nonwoven fabric and the outer nonwoven fabric of the back sheet 12. Here, the stretch ratio of the plurality of waist elastics 12C can be designed to be 150% or more, preferably 150% to 350%. Likewise, a plurality of waist elastics (not indicated in Figure 1 FIG. 6) are also laminated between the inner nonwoven fabric and the outer nonwoven fabric of the front sheet near the front waist edge 11A, thereby delivering an acceptable strand downforce to the wearer to provide good fit and comfort to the wearer without the occurrence of undesirable events such as sagging or leakage when the pant-type absorbent article 10 is worn.

[0061] As Figure 1As shown, the front panel 11 has a pair of front panel side edges 11B arranged generally symmetrically about the longitudinal center line L. Each pair of front panel side edges 11B is located at one of the two transverse ends of the front panel 11, and extends a certain length along the longitudinal center line L of the pants body. Correspondingly, the rear panel 12 also has a pair of rear panel side edges 12B arranged generally symmetrically about the longitudinal center line L. Each pair of rear panel side edges 12B is located at one of the two transverse ends of the rear panel 12, and also extends a certain length along the longitudinal center line L of the pants body.

[0062] Therefore, when making such Figure 2 When the trouser-style absorbent product 10 shown has a waist opening 15 and two leg openings, it can... Figure 1 The trouser body shown is folded along the transverse fold line T, allowing the front panel side edge 11B, extending a certain length along the longitudinal center line L of the trouser body, to overlap at least to some extent with the rear panel side edge 12B, which also extends a certain length along the longitudinal center line L of the trouser body. This allows a portion to be formed in the overlapping area of ​​the front panel side edge 11B and the rear panel side edge 12B, which can be laminated, heat-sealed, or ultrasonically bonded during a bonding process. This portion transforms the open trouser body into a closed trouser-type absorbent article 10. In this case, the portion formed by the interlocking of the front panel side edge 11B and the rear panel side edge 12B serves as the waistband 17 of the trouser-type absorbent article 10 (e.g., ...). Figure 2 (As shown).

[0063] The inventor of this utility model discovered that, Figure 1 and 2 The drawback of the trouser-style absorbent product 10 shown is that the pressure distribution exerted on the user's lower abdomen by the multiple waist elastic bands 12C arranged near the waist opening 15 is not entirely reasonable.

[0064] This is because the multiple waist elastic bands located in the front piece 11 and the back piece 12 are all along... Figure 1 The horizontal (X-direction) extension arrangement is shown in the diagram. Specifically, the multiple waist elastic bands located in the front panel 11 and back panel 12 constantly compress the user's lower abdomen in the horizontal (X-direction). This results in two issues: firstly, it fails to effectively support the user's slightly sagging lower abdomen to achieve a better fit with the curved abdomen; secondly, if the pressure applied by the waist elastic band 12C is too great, it easily squeezes the flesh of the user's lower abdomen upwards towards the body. As a result, a visible step or "spare tire" is formed between the part of the menstrual panty that is in contact with the body and the part above that is not in contact with the body due to the squeezing of flesh, which is unsatisfactory. Furthermore, existing menstrual panties cannot eliminate various discomforts for female users before menstruation.

[0065] Pant-type absorbent articles with microdynamics

[0066] As a solution, the inventors of this utility model proposed in... Figures 3-4 The diagram illustrates a feasible embodiment of a trouser-type absorbent article 100 with micro-pressure according to the present invention. Figure 1 and 2 Similar to the trouser-type absorbent articles shown, the micro-compression trouser-type absorbent article 100 according to the first embodiment of this utility model is also formed by folding and joining an integrally molded trouser body (e.g., made of a nonwoven fabric or other suitable nonwoven material that is essentially inelastic or stretchable) to a closed form with a waist opening and leg openings. The trouser-type absorbent article 100 formed by its closure is as follows: Figure 4 As shown.

[0067] like Figure 3 As shown, the trouser-type absorbent article 100 according to this invention generally includes a front panel 101, a back panel 102, and a crotch area 103 disposed between the front panel 101 and the back panel 102. Here, at least the front panel 101 includes an inner nonwoven fabric layer facing the body and an outer nonwoven fabric layer facing the clothing, wherein an elastic band, such as an elastic band, is sandwiched between the inner and outer nonwoven fabric layers, which are designed as nonwoven materials that are substantially inelastic or non-stretchable. Similarly, the back panel 102 may also be designed to include an inner nonwoven fabric layer facing the body and an outer nonwoven fabric layer facing the clothing.

[0068] like Figure 3 As shown, the front panel 101 extends generally along the longitudinal centerline L of the trouser-type absorbent article 100 and has a pair of front panel side edges 101B arranged generally symmetrically about the longitudinal centerline (only those located at...) are shown here. Figure 3 The right side edge) and the front waistband edge 101A for forming the waist opening, while the back piece 102 extends generally along the longitudinal centerline L of the trouser-type absorbent article 100 and has a pair of back piece side edges 102B arranged generally symmetrically about the longitudinal centerline (only those located at the right side edge) are shown here. Figure 3 The right side edge and the rear waist edge 102A for forming the waist opening, wherein the rear piece 102 and the front piece 101 are arranged generally symmetrically along the transverse fold line T.

[0069] Thus, the front panel 101 and the back panel 102 are arranged substantially symmetrically along the transverse fold line T and can be folded and interconnected at a later stage along the transverse fold line T to form a waist region having a waist opening 105 for accommodating a wearer's waist therein, which is jointly defined by both the front waist edge 101 A and the back waist edge 102A, and two leg openings for the wearer's thighs to pass through, which are jointly defined by the front panel 101 and the back panel 102 and the crotch region 103. The crotch region 103 is disposed at the bottom of the waist region between the first leg opening and the second leg opening. Further, an absorbent core 108 of known construction and absorbent composition is removably or replaceably secured inside the crotch region 103 (inside refers to the side facing the wearer's crotch).

[0070] Further, a plurality of waist elastic members 101C are sandwiched between the inner nonwoven fabric and the outer nonwoven fabric of the front panel 101 near the front waist edge 101 A in a manner that they are aligned parallel to each other and can be uniformly spaced apart from each other. By way of example only, the plurality of waist elastic members 101C in the front panel 101 can have a spacing of about 0.5 mm or more, preferably 0.5 to 2.5 mm, and a number of about 20 to 100. Here, the waist elastic members 101C are stretched to a certain stretch ratio when sandwiched between the inner nonwoven fabric and the outer nonwoven fabric of the front panel 101. Here, the plurality of waist elastic members 101C can be designed to have a stretch ratio of 150% or more, preferably 150% to 350%. Further, the front panel 101 also has a pair of front panel side edges 101B arranged substantially symmetrically about the longitudinal center line L, which are distributed at the two transverse ends of the front panel 101, and the front panel side edges 101B also extend a certain length along the longitudinal center line L of the pant main body.

[0071] Likewise, a plurality of waist elastic members 102C are sandwiched between the inner nonwoven fabric and the outer nonwoven fabric of the back panel 102 near the back waist edge 102A, thereby delivering an acceptable thread-down pressure to the wearer to provide good fit and comfort to the wearer without the undesirable events of sagging or leakage of the pant-type absorbent article 100 when worn.

[0072] Unlike Figure 1 and 2 the pant-type absorbent article 10 shown in FIGS. 1 to 5, as Figure 3As most clearly shown, between the inner and outer nonwoven fabric layers of the front sheet 101, there are two to three hundred elastic bands 111 arranged in a generally smooth, concave arc shape, for example, three to seven elastic bands 111, more specifically four elastic bands, wherein the elastic bands 111 have a fineness of 50 to 1000 denier. The spacing between the curved elastic bands 111 shown here can be approximately 1 mm to 50 mm, preferably 2 to 5 mm. Here, these elastic bands 111 have been stretched to a certain stretch ratio when laminated between the inner and outer nonwoven fabric layers of the front sheet 101. Here, the stretch ratio of the multiple elastic bands 111 can be designed to be 120% or more, preferably 120% to 300%. Here, the elastic elastic bands 111 arranged in a smooth concave arc shape can be sandwiched between the inner and outer nonwoven fabrics of the front piece 101 in an online or offline manner. That is to say, the way the elastic elastic bands 111 are laid is freely selectable by those skilled in the art.

[0073] More specifically, these elastic bands 111 are arranged in the front panel 102 in such a way that they include a first segment 111A and a second segment 111B extending obliquely from the two front panel sides 101B along the transverse direction (X direction) of the front panel 101, respectively, wherein the first segment 111A and the second segment 111B are substantially symmetrical about the longitudinal centerline L. Between the first segment 111A and the second segment 111B, there is a third segment 111C that extends longitudinally inward and arcuately towards the crotch area 103 with a certain radius of curvature, wherein the third segment 111C smoothly transitions from the first segment 111A and the second segment 111B at its substantially symmetrical ends about the longitudinal centerline L.

[0074] In more detail, such as Figure 3 In the open state shown, when viewed from the front, the innermost edge of the third segment 111C of these elastic bands 111 along the longitudinal direction (Y direction) is spaced from the front waist edge 101A by a first height h1 ranging from 10 to 180 mm, preferably from 20 to 150 mm. Simultaneously, the two outermost edges of the first segment 111A and the second segment 111B of these elastic bands 111 along the transverse direction (X direction) are spaced from each other by a first width w1 ranging from 300 to 900 mm, preferably from 500 to 700 mm. Based on the first height h1 and first width w1 given above, these elastic bands 111 depict a gentle concave curve in the area of ​​the front panel 101 of the trouser absorbent article 100 that overlaps with the waist elastic band 101C.

[0075] Furthermore, in suchFigure 6 As shown, when the user wears the trouser-style absorbent garment 100 in its closed state and viewed from the side, the innermost edges of the multiple elastic bands 111 located in the front panel 101 are generally in contact with the most protruding part of the user's lower abdomen 201. Thus, after the trouser-style absorbent garment 100 is worn, these elastic bands 111 extend smoothly diagonally downwards from the two sides of the waistband 107 toward the crotch area 103 until reaching the most protruding point of the user's lower abdomen 201. Therefore, compared to the prior art, the additional multiple elastic bands 111 located in the front panel 101 can effectively conform to the natural stretch of the user's lower abdomen 201, thereby achieving a better fit to the user's lower abdomen 201 than the prior art.

[0076] Those skilled in the art will understand that, since the elastic bands 111 located in the front piece 101 that are generally in contact with the most protruding part of the user's lower abdomen 201 are formed as telescopic members, they will push the lower abdomen 201 toward the body along the multiple positions in contact with the user's lower abdomen 201, forming a shape of the lower abdomen 201 that conforms to the user and is in a convex arc shape.

[0077] In this article, "direction toward the body" refers to... Figure 6 The front panel 101 of the trousers absorbent garment 100 is positioned near the lower abdomen 201 and extends diagonally upward toward the back panel 102 or waistband 107, which is designated as direction P. Specifically, the elastic band 111 lifts the naturally slightly drooping lower abdomen 201 from below and diagonally upward toward the back panel 102 or waistband 107, thereby ensuring that the front panel 101 of the trousers absorbent garment 100 fits snugly against the user's lower abdomen 201.

[0078] Here, by means of the multiple elastic bands 111 arranged as described above, the trouser-type absorbent article 100 has an area in the front piece 101 where the multiple elastic bands 111 are arranged along the longitudinal direction ( Figure 3 The flexibility in the Y direction is greater than or equal to that in the lateral direction. Figure 4 The stretchability in the X direction (part of the front panel 101) is, more specifically, 1 to 3 times, preferably 2 times, the elongation rate in the longitudinal direction (Y direction) compared to the elongation rate in the transverse direction (X direction). Simultaneously, the elongation recovery rate in the longitudinal direction of the area in the front panel 101 where the elastic bands 111 are arranged is 1 to 2 times, preferably 1.5 times, the elongation recovery rate in the transverse direction. The directional stretchability given here as an example is mainly adjusted by factors such as the stretch ratio, the fineness of the elastic bands 111 arranged in the front panel 101, and the spacing between them. For example, the stretch ratio of the four elastic bands 111 (here, 4 bands) can be designed to be 150% to 350%, with a fineness of 400 denier and a spacing of 3 mm between them.

[0079] It is also desirable to point out that, although in the preferred embodiment described above, the elastic properties in the front panel 101 are varied in the predetermined area of the back panel by means of a plurality of pre-stretched elastic threads 111 arranged in an off-line or on-line manner, as an equivalent alternative to the elastic threads 111 described above, it is also possible to vary the elastic properties in the front panel 101 by means of an elastic film laminated between the nonwoven layers of the front panel 101 having comparable elastic properties. Even, as part of the concept underlying the present application, it is also possible to achieve the technical effects described above by means of a nonwoven having a significant elasticity. All the above variants are included within the scope of protection of the present application.

[0080] The inventors of the present application have found that by setting the parameters described above, on the one hand, it is possible to conform to the three-dimensional shape of the user's lower abdomen, and on the other hand, to apply a suitable pressure to the user's lower abdomen. If the parameters of the plurality of elastic threads 111 described above are exceeded, such as to cause an excessive elongation recovery in the area of the front panel 101, it is likely that the front panel 101 will not adhere satisfactorily to the user's lower abdomen, especially when the user's lower abdomen is in motion. Conversely, if the elasticity of the front panel 101 in the area described above is too low, it is likely that an excessive pressure will be applied to the user's skin, thus forming a tear mark or extruding the step or "swim ring" described above in the user's lower abdomen.

[0081] In order to better illustrate the technical effects of the present application, in Figure 5 , a situation is shown in which a user wearing the pant-type absorbent article 100 according to the present application is standing upright. As can be seen in Figure 3 , the plurality of elastic threads 111 extending from the waist seal 107 cause the front panel 101 to adhere tightly to the user's lower abdomen 201, and do not form the visible step or "swim ring" due to the extrusion of the flesh of the lower abdomen as in the prior art. Figure 5

[0082] As another aspect of the present application, in Figure 7 , another possible embodiment according to the present application is shown, which differs from the embodiment shown in Figure 3 mainly in that the first and second sections 111A, 111B of the elastic threads 111 in Figure 7 do not extend obliquely from the two front panel sides 101B, respectively. Instead, the first and second sections 111A, 111B of the plurality of elastic threads 111 in the front panel 101 both extend downwardly and towards each other from the front waist edge 101A.

[0083] In particular, in Figure 7 ​In the opened state in the above-described second height h2 and the second width w2, the innermost edge of the third section 111C of the plurality of elastic rubber threads 111 interposed between the inner and outer nonwoven fabrics of the front panel 101 is spaced apart from the front waist edge 101A in the longitudinal direction (Y direction) by a second height h2 in the range of 10 to 180 mm, preferably in the range of 30 to 120 mm. At the same time, the opposite two outermost edges of the first and second sections 111A and 111B of the elastic rubber threads 111 from the front waist edge 101A in the lateral direction (X direction) are spaced apart from each other by a second width w2 in the range of 300 to 900 mm, preferably in the range of 500 to 700 mm.

[0084] Based on the above-described second height h2 and the second width w2, the elastic rubber threads 111 describe a gently concave curve in the area of the front panel 101 of the pant-type absorbent article 100 overlapping the waist elastic 101C. Similarly, when the pant-type absorbent article 100 is worn and viewed from the side, the innermost edge of the elastic rubber threads 111 generally conforms to the most convex point of the user's lower abdomen 201, so that after the pant-type absorbent article 100 is worn, the elastic rubber threads 111 extend smoothly downward and obliquely from both side edges of the waist seal 107 toward the crotch region 103 to the most convex point of the user's lower abdomen 201. Thus, in a similar manner as described above, the plurality of elastic rubber threads 111 added in this way or arrangement can also effectively conform to the natural extension of the user's lower abdomen 201, thereby ensuring better fit with the user's lower abdomen 201 compared to the prior art.

[0085] Determination of elongation and elongation recovery

[0086] In the present application, the determination of the elongation and the elongation recovery rate can be performed, for example, using an isokinetic elongation tensile testing machine, such as a table-top testing machine available from Zwick Testing Technology (Shanghai) Co., Ltd. under the trade name zwickiLine. The test, for example, prepares four pieces each in the longitudinal direction and the lateral direction of the generally fan-shaped front panel 101 with added elastic rubber threads 111 as test pieces, two of which are used for elongation testing and the other two are used for elongation recovery rate testing.

[0087] In the elongation test, the front panel 101 of the belt to which the elastic rubber band 111 is added as a test piece was clamped at 25 mm at the upper portion and at 35 mm at the lower portion, with a clamping interval of 100 mm, to set up in the tester, and a load of 2.25 kgf (22.1 N) at maximum was applied at a speed of 300 mm ± 20 mm / min. Thereafter, the elongation (%) was measured in the case of a load of 1.00 kgf (9.8 N), a load of 1.50 kgf (14.7 N), and a load of 2.25 kgf (22.1 N), and the integer of the average value of two samples was calculated as the elongation.

[0088] In the elongation recovery test, the front panel 101 of the belt to which the elastic rubber band 111 was added as a test piece was set up in the tester as in the elongation test. Next, the elongation was set using a predetermined elongation setting condition, and the elongation and recovery were repeated three times at a speed of 300 mm ± 20 mm / min, and a load-elongation curve was calculated with the longitudinal axis as the load and the lateral axis as the elongation. From the test results of the first and third times, the elongation force and the tight force were measured from the curve, and the integer of the average value was calculated. In addition, the elongation force here is the load at the time of rising, and the tight force is the load at the time of falling. The elongation recovery rate was calculated from the load-elongation curve of the first time. In the case where the set elongation was L and the residual elongation (the elongation rate with respect to the original length after the elongation recovery) was L0, the formula became ((L - L0) / L) x 100 (%). Finally, the integer of the average value of two samples was calculated as the elongation recovery rate.

[0089] Consumer evaluation test

[0090] Production Figures 3-7 The pant-type absorbent article 100 of the first or second embodiment of the present application shown in the above was subjected to a consumer wearing evaluation. Ten M-size experimenters were made to wear the pant-type absorbent article 100. In addition, as a comparative example, the same number of experimenters were made to wear conventional menstrual pants (Example 1) without the elastic rubber band arranged as described above. Figure 1 and 2 the pant-type absorbent article 10 shown in the above). As a result, for the question "Which is better if worn from the pre-menstrual period to the mid-menstrual period?", ten out of ten answered "the pant-type absorbent article 100" was better. It was thus confirmed that the pant-type absorbent article 100 of the present application is a more satisfactory and comfortable menstrual pant for consumers.

[0091] In addition, regarding the pant-type absorbent article 100, the wearer was consulted about wearing every day from the time when the menstruation was felt to the time when the menstruation ended. As a result, the following answers were obtained: "shoulder soreness was reduced compared to the previous menstrual period" (6 out of 10 experimenters), "lower abdominal pain was reduced compared to the previous menstrual period" (7 out of 10 experimenters), "waist pain was reduced compared to the previous menstrual period" (6 out of 10 experimenters), and "fatigue feeling was reduced compared to the previous menstrual period" (8 out of 10 experimenters). Thus, it was confirmed that, according to the present application, the above needs were not realized to such an extent during the menstrual period and the period near the menstrual period, and thus the satisfaction and consumption experience of the user were significantly improved.

[0092] As can be seen from the above, according to the pant-type absorbent article 100 of the present application, the function of applying a comfortable micro-pressure to the lower abdomen of the user when the absorbent article is worn by the user, thereby effectively relieving various discomforts (such as cramps or cold hands and feet, etc.) during the menstrual period, is achieved in a simple and easy manner, thereby effectively improving the satisfaction and consumption experience of the user.

[0093] Herein, the embodiments of the present application have been exemplified and described, but those skilled in the art should know that the above and other various changes, omissions, additions can be made without departing from the spirit and scope of the present application. It should not be construed as being limited to the specific examples described herein, but it encompasses all possible embodiments in which the features described in the appended claims can be embodied within the scope and equivalent range thereof.

[0094] The dimensions and values disclosed herein are not to be understood as being strictly limited to the exact numerical values recited. Instead, unless otherwise specified, each such dimension is intended to mean both the recited value and functionally equivalent values within a range surrounding that value. For example, a dimension disclosed as "40 mm" is intended to mean "about 40 mm."

[0095] All documents cited in the DETAILED DESCRIPTION are, in relevant part, incorporated herein by reference; the citation of any document is not to be construed as an admission that it is prior art with respect to the present application. To the extent that any meaning or definition of a term in this written document conflicts with any meaning or definition of the term in a document incorporated by reference, the meaning or definition assigned to the term in this written document shall prevail.

[0096] While particular embodiments of the present application have been shown and described, it will be obvious to those skilled in the art that, based upon the teachings herein, changes and modifications can be made in the application without departing from the spirit and scope thereof. Accordingly, the appended claims are intended to cover all such changes and modifications as fall within the scope of the application.

[0097] When introducing the elements of the utility model or the preferred embodiment(s) thereof, the articles "a", "an", "the" and "said" are intended to mean that there is at least one element. The terms "comprise", "contain" and "have" are intended to be inclusive, and mean that in addition to the listed elements, additional elements can also be present. Many modifications and changes can be made to the utility model without departing from the spirit and scope of the utility model. Therefore, the above-mentioned examples should not be used to limit the scope of the utility model.

Claims

1. A pant-type absorbent article with a micro-pressure, which can be turned over and joined to a closed type having a waist opening and a leg opening by means of an integrally formed pant main body which is opened, characterized in that, comprises: a front panel extending generally along a longitudinal centerline of the pant-type absorbent article and having a pair of front panel side edges arranged generally symmetrically about the longitudinal centerline and a front waist edge for forming a waist opening, wherein a plurality of waist elastics are arranged in the front panel in parallel and spaced apart from each other; a back panel extending generally along the longitudinal centerline of the pant-type absorbent article and having a pair of back panel side edges arranged generally symmetrically about the longitudinal centerline and a back waist edge for forming a waist opening; the back panel and the front panel are arranged generally symmetrically along a transverse fold line; a crotch region located between the front panel and the back panel and having an absorbent core for absorbing body fluids disposed thereon; wherein the plurality of elastics further comprises: a first section and a second section respectively extending obliquely from the two front panel side edges of the front panel, wherein the two outermost edges of the first section and the second section along the transverse direction are spaced apart from each other by a first width of 300 to 900 mm; a third section arcuately raised towards the crotch region longitudinally inwardly between the first section and the second section, wherein the third section is smoothly transitioned with the first section and the second section at its two generally symmetric ends, and wherein the innermost edges of the third section are spaced apart from the front waist edge of the front panel longitudinally by a first height of 10 to 180 mm. wherein the first width by which the two outermost edges of the first section and the second section along the transverse direction are spaced apart from each other is 500 to 700 mm, and the first height by which the innermost edges of the third section are spaced apart from the front waist edge of the front panel longitudinally is 20 to 150 mm.

2. The belted pant-type absorbent article of Claim 1 wherein, comprises:

3. A pant-type absorbent article with micro-pressure, which can be turned inside out and joined to a closed configuration having a waist opening and leg openings by means of an integral pant body, characterized in that, a front panel extending generally along a longitudinal centerline of the pant-type absorbent article and having a pair of front panel side edges arranged generally symmetrically about the longitudinal centerline and a front waist edge for forming a waist opening, wherein a plurality of waist elastics are arranged in the front panel in parallel and spaced apart from each other; a back panel extending generally along the longitudinal centerline of the pant-type absorbent article and having a pair of back panel side edges arranged generally symmetrically about the longitudinal centerline and a back waist edge for forming a waist opening; the back panel and the front panel are arranged generally symmetrically along a transverse fold line; a crotch region located between the front panel and the back panel and having an absorbent core for absorbing body fluids disposed thereon; wherein the plurality of elastics further comprises: a first section and a second section respectively extending obliquely from the two front panel side edges of the front panel, wherein the two outermost edges of the first section and the second section along the transverse direction are spaced apart from each other by a first width of 300 to 900 mm; a third section arcuately raised towards the crotch region longitudinally inwardly between the first section and the second section, wherein the third section is smoothly transitioned with the first section and the second section at its two generally symmetric ends, and wherein the innermost edges of the third section are spaced apart from the front waist edge of the front panel longitudinally by a first height of 10 to 180 mm. wherein the first width by which the two outermost edges of the first section and the second section along the transverse direction are spaced apart from each other is 500 to 700 mm, and the first height by which the innermost edges of the third section are spaced apart from the front waist edge of the front panel longitudinally is 20 to 150 mm. a first section and a second section obliquely extending from the front waist edge of the front panel, respectively, wherein the second width between the two outermost edges of the first section and the second section in the transverse direction is 300 to 900 mm; a third section curvedly raised toward the crotch region longitudinally between the first section and the second section, wherein the third section smoothly transitions to the first section and the second section at its two substantially symmetrical ends, and wherein the innermost edges of the third section are spaced apart from the front waist edge of the front panel by a second height of 10 to 180 mm in the longitudinal direction.

4. The belted pant-type absorbent article of Claims 1 or 3, characterized in that, wherein the elongation of the front panel in the longitudinal direction is 1 to 3 times the elongation in the transverse direction in the region where the plurality of elastic threads are arranged.

5. The belted pant-type absorbent article of Claims 1 or 3 wherein, the elongation recovery of the front panel in the longitudinal direction is 1 to 2 times the elongation recovery in the transverse direction.

6. The belted pant-type absorbent article of Claim 3, wherein the elastic belt is attached to the backsheet by a plurality of attachment points. wherein the second width between the two outermost edges of the first section and the second section in the transverse direction is 500 to 700 mm, and the second height between the innermost edges of the third section and the front waist edge of the front panel in the longitudinal direction is 30 to 120 mm.

7. The belted absorbent article of Claims 1 or 3 wherein, the front panel includes an inner nonwoven fabric on the body-facing side and an outer nonwoven fabric on the garment-facing side, wherein the elastic threads are sandwiched between the inner nonwoven fabric and the outer nonwoven fabric, and wherein the inner nonwoven fabric and the outer nonwoven fabric are designed as nonwoven materials substantially free of elasticity or extensibility.

8. The belted absorbent article of Claims 1 or 3 wherein, the innermost edges of the third section of the elastic threads in the longitudinal direction substantially conform to the most protruding part of the user's belly when the pant-type absorbent article is in the closed state.

9. The belted absorbent article of Claims 1 or 3 wherein, wherein the absorbent core includes an absorbent surface layer and a liquid-impermeable backsheet, and is designed to be removably or replaceably fixed to the inner side of the crotch region.

10. The belted absorbent article of Claims 1 or 3 wherein, wherein the absorbent core is an absorbent structure sewn in the crotch region, which includes a wicking layer on the body-facing side, an absorbent layer directly below the wicking layer, and an outermost barrier layer for preventing the exudation of body fluids. the absorbent core is an absorbent structure sewn in the crotch region, which includes a wicking layer on the body-facing side, an absorbent layer directly below the wicking layer, and an outermost barrier layer for preventing the exudation of body fluids.

Images