Disposable sanitary article with liquid side barrier
阅读说明:本技术 带有液体侧阻挡件的一次性卫生物品 (Disposable sanitary article with liquid side barrier ) 是由 P·布罗姆斯特伦 S·斯托尔 A·巴格尔-舍贝克 于 2017-08-22 设计创作,主要内容包括:一次性卫生物品,其包括液体可透的顶片、液体不可透的背片和吸收芯、布置在吸收芯的相反侧上用于将物品附接到衣服的柔性侧翼,以及大致上沿着吸收芯的纵向边缘布置的液体侧阻挡件。柔性侧翼各自包括借助于接缝固定到顶片的至少一个侧层,该接缝将侧层分隔成第一部分和第二部分,其中第一部分从接缝朝向纵向中心轴线延伸,并且第二部分从接缝远离所述纵向中心轴线延伸。第一部分形成液体侧阻挡件。(A disposable hygiene article comprising a liquid permeable topsheet, a liquid impermeable backsheet and an absorbent core, flexible side flaps arranged on opposite sides of the absorbent core for attaching the article to a garment, and a liquid side barrier arranged substantially along the longitudinal edges of the absorbent core. The flexible side flaps each comprise at least one side layer secured to the topsheet by means of a seam dividing the side layer into a first portion and a second portion, wherein the first portion extends from the seam towards the longitudinal central axis and the second portion extends from the seam away from said longitudinal central axis. The first portion forms a liquid side barrier.)
1. A disposable sanitary article (100; 150; 200) comprising:
a liquid permeable topsheet (106), a liquid impermeable backsheet (108) and an absorbent core (110) arranged between the topsheet (106) and the backsheet (108), the absorbent core (110) defining a longitudinal central axis (101) extending substantially in the middle of the core in the longitudinal direction (L) of the article;
flexible side flaps (112) arranged on opposite sides of the absorbent core (110) and provided for attaching the article (100) to a garment; and
a liquid side barrier (122; 152) disposed substantially along the longitudinal edges of the absorbent core and provided to reduce side edge leakage;
characterized in that the flexible side flaps (112) each comprise at least one side layer (114; 150) being fixed to the topsheet (106) by means of a seam (120), the seam (120) separating the side layer (114; 150) into a first portion (122; 152) and a second portion (124; 154), wherein the first portion (122; 152) extends from the seam (120) towards the longitudinal central axis (101) and the second portion (124; 154) extends from the seam (120) away from the longitudinal central axis (101), the first portion (122; 152) extending over the topsheet and being released from the topsheet to form the liquid side barrier (122; 152).
2. The disposable sanitary article (100; 150; 200) according to claim 1, wherein the side barrier (122; 152) is provided to be at least partially raised to a substantially upright position in use.
3. The disposable sanitary article (100; 150; 200) according to claim 1 or claim 2, wherein the side barrier (122; 152) is provided to be at least partially raised by folding the flexible side flap (112) to a position where the sanitary article (100; 150) is secured to the garment.
4. The disposable sanitary article (100; 150; 200) according to any one of the preceding claims, wherein the side barrier (122; 152) is provided to be at least partially raised by folding the flexible side flap (112) substantially along the seam (120).
5. The disposable hygiene article (100; 150; 200) according to any of the preceding claims, wherein the flexible side flaps (112) each comprise a side portion of the back sheet (108).
6. The disposable hygiene article (100; 150; 200) according to claim 5, wherein on each side of the absorbent core (110) the side layer (114) is attached to a respective side of the back sheet (108).
7. The disposable hygiene article (100; 150; 200) according to claim 6, wherein said attachment is provided along the outer edges (113, 118) of the respective sides of the side layer (114) and the back sheet (108).
8. The disposable hygiene article (150) according to any of the preceding claims, wherein the first portion (152) of each of the side layers is formed by a multi-layer section (152) of the respective side layer (150).
9. The disposable hygiene article (150) according to claim 8, wherein the multi-layer section is formed by at least one fold of the side layer (151).
10. The disposable sanitary article (100; 150; 200) according to any one of the preceding claims, wherein the first portion (122; 152) extends over the entire length of the article.
11. The disposable sanitary article (100; 150; 200) according to any one of the preceding claims, wherein the first portion (122; 152) has a width in the transverse direction (T) of the article in the range from 2.0mm to 10.0mm, preferably from 3.0 to 7.0 mm.
12. The disposable hygiene article (100; 150; 200) according to any of the preceding claims, wherein the liquid side barrier (122; 152) consists entirely of a non-elastic material.
13. The disposable hygiene article (200) according to any of the preceding claims, wherein the article (200) further comprises an acquisition layer (111) located between the absorbent core (110) and the topsheet (106).
14. The disposable sanitary article (100; 150; 200) according to any one of the preceding claims, wherein said seam (120) is obtained by welding, such as ultrasonic welding, by applying a compound, such as an adhesive, by applying heat and/or pressure.
15. A disposable sanitary article (100; 150; 200) according to any of the preceding claims, wherein a coloured indication is provided on the article to highlight the presence of the liquid side barrier, preferably by printing on the topsheet (106) underneath each of the first portions (122; 152), preferably provided on the garment facing side of the topsheet.
Technical Field
The present disclosure relates to disposable hygiene articles, such as adult incontinence articles, sanitary napkins and pantiliners or the like, having flexible side flaps and being provided with a liquid side barrier.
Background
Disposable sanitary articles have to meet high requirements. For example, they should be unobtrusive (discreet), soft and comfortable to wear, and at the same time they should have reliable security against leakage. Such disposable sanitary articles typically comprise a liquid permeable topsheet, a liquid impermeable backsheet and an absorbent core arranged between the topsheet and the backsheet.
During use of the disposable sanitary article, there is a risk that bodily discharges, such as urine, menstrual fluid or other body fluids, move over the liquid permeable topsheet and leak past the edges of the article. Although liquid movement can occur in any direction, for example in the longitudinal direction or in the transverse direction of the sanitary article, liquid movement in the transverse direction of the sanitary article is of particular concern, since only a relatively small liquid movement in the transverse direction can cause liquid to leak outside the longitudinal side edges of the sanitary article, with the result that surrounding articles (e.g. clothing, bed sheets, seat cushions) are soiled with the discharged liquid. The risk of so-called side edge leakage is highest at night (e.g. when sleeping on its side).
Many different attempts have been made to reduce or eliminate the problem of side edge leakage.
Some known sanitary articles are provided with side flaps (also called wings) which project outwardly from the sanitary article. When the article is worn for wearing, the side flaps are intended to be folded around and fastened outside the edges of the leg openings of the underwear of the wearer.
Some known sanitary articles are provided with a liquid side barrier along the longitudinal edges of the absorbent core, wherein elastic threads are provided in or on the material to raise the liquid side barrier in use. Such a solution requires additional materials and additional processing steps, which makes such a sanitary article technically complicated.
Disclosure of Invention
It is an object of the present disclosure to provide a disposable sanitary article provided with a technically less complex liquid side barrier.
It is another object of the present disclosure to provide a disposable hygiene article with a reduced risk of side edge leakage without significantly increasing the amount of material used.
It is a further object of the present disclosure to provide a disposable sanitary article provided with a liquid-side barrier which can be manufactured in a relatively simple manufacturing method.
At least one of the above objects may be achieved by a disposable sanitary article as defined in the independent claim.
According to one aspect of the present disclosure, there is provided a disposable sanitary article comprising a liquid permeable topsheet, a liquid impermeable backsheet and an absorbent core arranged between said topsheet and said backsheet, the absorbent core defining a longitudinal central axis extending substantially in the middle of the core in the longitudinal direction L of the article. The disposable hygiene article is adapted to be releasably attached to a garment, such as underpants or pants. In use of the article, the topsheet faces the crotch region of the user and the backsheet faces away from the crotch region of the user.
The article further comprises flexible side flaps arranged on opposite sides of the absorbent core and provided for attaching the article to a garment, and a liquid side barrier arranged substantially along the longitudinal edges of the absorbent core and provided to reduce or minimize side edge leakage. The flexible side flaps each comprise at least one side layer secured to the topsheet by means of a seam dividing the side layer into a first portion and a second portion, wherein the first portion extends from the seam towards the longitudinal central axis and the second portion extends from the seam away from the longitudinal central axis. Each of the first portions extends over the topsheet and is released from the topsheet to form one of the liquid-side barriers.
It has been found that the first part of the side layer of the flexible side flap extending over a part of the topsheet, in particular over the longitudinal edge portions of the topsheet, may function well as a liquid side barrier when unfastened from the topsheet. Without being bound by theory, it is believed that this effect can be achieved by the fact that: liquid flowing laterally along the topsheet finds barriers in its path as a result of the seam and the first part of the side layer on that side, even when the liquid is on top of the topsheet. The construction of the article of the present disclosure may be simplified as the need for a resilient element for raising the side barrier may be avoided.
In embodiments according to the present disclosure, a liquid-side barrier may be provided that is at least partially raised to a substantially upright position in use. At least partial elevation of the side barriers may strengthen the barriers and thereby further reduce side edge leakage in use.
In embodiments according to the present disclosure, the liquid side barrier may be provided to be at least partially lifted by folding the flexible side flaps to a position where the sanitary article is secured to the garment. In this way, even in the case where no elastic element is provided to raise the side barrier, the raising of at least part of the side barrier can be ensured.
In embodiments according to the present disclosure, a side barrier may be provided to be at least partially raised by folding the flexible side flap substantially along the seam. This may further ensure a substantially upright position of the side barrier in use.
In an embodiment according to the present disclosure, the flexible side flaps may each comprise a side portion of said backsheet, i.e. in this embodiment the side flaps comprise a side layer and a side portion of the backsheet, which are placed on top of each other. The side layer and the side portion are preferably attached to each other, preferably along their outer edges. The attachment of these layers to each other may have the effect of: upon folding of the side flaps, preferably along or adjacent to the seams, tension is created which assists in raising the side barriers to a proper, generally upright position.
In an embodiment according to the present disclosure, the first portion of each of the side layers is formed by a multi-layer section of the respective side layer, preferably formed by at least one fold of the side layer. Such a multi-layer construction may strengthen the liquid side barrier and further reduce side edge leakage.
In embodiments according to the present disclosure, the first portion forming the side barrier may extend over the entire length of the article.
In an embodiment according to the invention, the first portion has a width in the transverse direction T of the article in the range from 2.0 to 10.0mm, preferably from 3.0 to 7.0 mm.
In embodiments according to the present disclosure, the liquid side barrier may be composed entirely of a non-elastic material, i.e. the need for an elastic element to ensure a proper elevation of the side barrier in use may be avoided.
In embodiments according to the present disclosure, the article may further comprise an acquisition layer located between the absorbent core and the topsheet.
In embodiments according to the present disclosure, the seam may be obtained by welding, such as ultrasonic welding, by applying a compound, such as an adhesive, by applying heat and/or pressure.
In embodiments according to the present disclosure, a coloured indication may be provided on the article to highlight the presence of the liquid-side barrier, preferably by printing on the topsheet underneath each of said first portions, preferably provided on the garment-facing side of the topsheet. It has been found that such a highlighting of the presence of the side barrier may give a signal of increased leakage protection and thus an increased sense of security.
Drawings
The present disclosure will be discussed in more detail below with reference to the attached figures, wherein:
figure 1 shows a top view of a first embodiment of a disposable sanitary article according to the present disclosure;
figure 2 is a cross-sectional (exploded) view of the article along the line II-II shown in figure 1;
figure 3 is a cross-sectional (exploded) view of a second embodiment of a disposable sanitary article according to the present disclosure;
figure 4 is a cross-sectional view of the article of figures 1 and 2, when in use;
figure 5 shows a top view of a third embodiment of the disposable sanitary article according to the present disclosure.
Detailed Description
The present disclosure will be described with respect to particular embodiments and with reference to certain drawings but the disclosure is not limited thereto but only by the claims. The drawings described are only schematic and are non-limiting. In the drawings, the size of some of the elements may be exaggerated and not drawn on scale for illustrative purposes. The dimensions and relative dimensions do not necessarily correspond to actual reductions to practice the present disclosure.
Furthermore, the terms first, second, third and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a sequential or chronological order. The terms are interchangeable under appropriate circumstances and the embodiments of the disclosure can operate in other sequences than described or illustrated herein.
Furthermore, the terms top, bottom, over, under and the like in the description and the claims are used for descriptive purposes and not necessarily for describing relative positions. The terms so used are interchangeable under appropriate circumstances and the embodiments of the disclosure described herein can operate in other orientations than described or illustrated herein.
Furthermore, the various embodiments, although referred to as "preferred," should be construed in an illustrative manner in which the disclosure may be practiced and not in a limiting sense.
The term "comprising" as used in the claims should not be interpreted as being limited to the elements or steps listed below; it does not exclude other elements or steps. It should be interpreted as specifying the presence of the stated features, integers, steps or components as referred to, but does not preclude the presence or addition of one or more other features, integers, steps or components, or groups thereof. Thus, the scope of the expression "a device comprising a and B" should not be limited to devices consisting of only the components a and B, but rather with respect to the present disclosure, only the enumerated components of the device are a and B, and further, the claims should be interpreted to include equivalents of those components.
Disposable sanitary articles are absorbent articles intended for personal hygiene and are arranged to absorb body secretions, such as blood or urine. Such disposable sanitary articles are single-use articles and include, for example, adult incontinence articles, sanitary napkins and pantiliners.
In general, disposable hygiene articles are releasably attachable to a garment (suitably the underwear of the user) by means of an adhesive material. A first embodiment is described with reference to fig. 1 and 2.
The
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The article may comprise a front portion a, an intermediate portion B and a rear portion C in the longitudinal direction of the article. Front portion a and back portion C may be shaped to assist a user in optimally positioning
The
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Other layers or sheets of the
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In the embodiment shown in fig. 1, the
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The different layers of the
In the embodiment shown in fig. 1 and 2, the
In the embodiment shown in fig. 1 and 2, the
In alternative embodiments, the longitudinal side edges 116 and 118 of the
In the embodiment shown in fig. 1 and 2, the
In the embodiment shown in fig. 1 and 2, the
In the embodiment shown in fig. 1 and 2, the topsheet has longitudinal edge portions 107, which longitudinal edge portions 107 may be provided with a colored indication to indicate or highlight to the user the presence of the
In the embodiment shown, side layers 114 are also present in the front a and back C, i.e.
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In the illustrated embodiment, the outer
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When the
Fig. 3 shows an alternative embodiment of a
Fig. 5 shows another embodiment of a disposable hygiene article 200 according to the present disclosure. This embodiment is in many respects identical to the embodiment of figures 1 and 2 and like parts are indicated by like reference numerals. One difference is that the article 200 comprises an acquisition layer 111 positioned between the
In all embodiments, the side layers 114, 151 may include a hydrophobic material to further reduce the risk of side edge leakage, although this is not required. The side layer may, for example, comprise a hydrophobic nonwoven material or a hydrophobic spunbond material. Furthermore, a hydrophobic coating may be applied on the material of the side layer, or the material of the side layer may be treated, for example, with a surfactant to adjust the degree of hydrophilicity thereof.
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