RU2465878C2 - Absorbing product - Google Patents

Abstract

FIELD: medicine.

SUBSTANCE: invention relates to disposable absorbing products, such as disposable diapers, intended for people suffering from incontinence. Product contains absorbing assembly, which contains absorbing core and frame, containing water-proof rear sheet and located opposite each other side valves. Each of side valves has extended in longitudinal direction first elastic assembly element, attached on its nearer edge or close to it. Frame also contains second elastic assembly element, attached on side edge of frame or close to it and located between zone of attachment of side barrier and side edge. Frame can also contain first activated structure in front belt area and/or back belt area, perineal region of frame might be non-activated, or, as alternative, contain second activated structure, different from first activated structure. Front and back belt areas are fixed to each other on respective side edges or near them, thus forming opening for waist and two located opposite each other in transversal direction openings for legs. Product contains, at least, one abdominal tightening panel, attached to internal or external frame surface in front or back belt area.

EFFECT: group of inventions ensures simplification of disposable absorbing product construction and increase of efficiency of its materials by their activation, as well as circular compressing force around opening for user's waist, when frame is stretched on circumference.

20 cl, 44 dwg

Description

Application area

The present invention relates to disposable absorbent articles, such as disposable diapers and other absorbent articles intended for persons suffering from urinary incontinence.

State of the art

Disposable absorbent products are designed to absorb and retain body excretions and prevent them from contaminating the user's body and clothing, as well as bedding or other items that the user is concerned. The scope of use of disposable absorbent products has recently expanded, and at the same time, their design has become more complicated due to the inclusion of additional features designed to increase their efficiency and improve their appearance. Due to the complexity of the design, materials and production costs have also increased. As a result, the price of such products has risen to a level at which many potential buyers around the world cannot afford them. Therefore, there is a need for a simple disposable absorbent article. The approach proposed in the present invention allows to simplify the design of a disposable absorbent product and increase the efficiency of its materials by activating them, as a result of which a simple and cheap product can be obtained. The activation of the carcass web makes the areas of a simple plastic film stretchable and somewhat elastic. Such extensibility provides additional versatility in the sizes and shapes of the product and provides significant comfort for the user. The combination of a high degree of stretchability of the frame with abdominal tie panels provides a structure that has the appearance and gives the feeling of real underwear, compared with ordinary, strongly tightening diapers. The appearance and sensation of underwear is important both for the user of the product and for the person who cares for him, especially in the context of teaching children how to use a normal toilet when moving from “baby” to “big boy” or “big girl”.

SUMMARY OF THE INVENTION

The disposable absorbent article comprises an absorbent assembly comprising an absorbent core. The product may also contain a frame having a longitudinal axis, a transverse axis, a front waist region having a front waist edge, a back waist region having a rear waist edge, a crotch region located between waist portions, laterally extended laterally opposite each other in the transverse direction between the front and rear waist edges, the outer surface and the inner surface to which the absorbent assembly is attached. The frame may also contain a waterproof back layer and lateral flaps opposite each other in the transverse direction. Each of the side flaps may have a longitudinally elongated first elastic collecting member attached to or near its proximal edge.

The frame may also contain a second elastic element attached to the side edge of the frame or near it. The second elastic element may be located between the zone of attachment of the side barrier and the side edge. The framework may further comprise a first activated structure in the anterior and / or posterior waist region, but in the crotch region, the framework may not be activated or, in alternative embodiments, comprise a second activated structure different from the first activated structure.

The front waist region and the rear waist region can be fastened to each other at or near respective lateral edges, thereby forming an opening for the waist and two opposite to each other in the transverse direction of the opening for the legs.

The product may further comprise at least one abdominal clamp panel attached to the inner surface or outer surface of the frame, in the front waist region or back waist region. The abdominal tie panel may have a circumferentially-extended, longitudinally distal edge located on or near the corresponding front or rear waist edge, and opposite to it in the longitudinal direction, circumferentially longitudinally proximal edge. The abdominal tie panel can provide a tensile force applied around the circumference of the waist opening when the frame is stretched around the circumference.

Brief Description of the Drawings

In the accompanying drawings, like reference numerals indicate like elements that may, but may not, be identical in the respective several depicted embodiments of the invention. Some drawings may be simplified due to the fact that certain elements on them are not shown in order to more clearly display other elements. The fact that such elements are not shown in some drawings does not necessarily mean their presence or absence in any of the embodiments of the invention, unless explicitly stated in the corresponding part of the detailed description.

In the drawings and in the description, lowercase letters next to the numeric position numbers mean, as a rule, symmetrical elements, for example, the left and right symmetrical elements can be indicated by the position numbers 1a and 1b. Position numbers without lowercase letters denote all the elements to which this position number belongs, for example, all the same elements as a group can be designated as 1.

The edges of the individual components of the product are shown, for clarity, separated from each other; the image of the edges as being in close proximity to each other has the goal of showing that these edges are along each other or close enough to each other.

Figure 1. View of one of the embodiments of the absorbent article in the form of a diaper 20, in a flat, unstressed state, that is, not experiencing tensile forces from the elastic elements. In this drawing, the inner surface of the diaper is shown facing the person looking at the drawing.

Figure 2. View of the diaper 20 shown in figure 1, with the outer surface facing the person looking at the drawing.

Figure 3. The cross section of the diaper 20 shown in figure 1, along the plane 3-3.

Figure 4. The cross section of the diaper 20 shown in figure 1, on the plane 4-4.

Figure 5. The cross section of the diaper 20 shown in figure 1, on the plane 5-5.

6. The cross section of the diaper 20 shown in figure 1, on the plane 6-6.

7. A simplified side view of the diaper 20 shown in figure 1, worn on the lower body of the user.

Fig. 8. Front view of the diaper 20 shown in Fig.7.

Fig.9. Rear view of the diaper 20 shown in Fig.7.

Figure 10. Type of laminated tie panel.

11. View of the laminated tie panel shown in figure 10, in a stretched condition.

Fig. 12. An embodiment of the absorbent assembly 200, with the interior of the absorbent assembly 200 facing the viewer of the drawing.

Fig.13. The cross section of the absorbent assembly shown in Fig.12, on the plane 13-13.

Fig.14. The cross section of the absorbent assembly shown in Fig.12, on the plane 14-14.

Fig.15. A cross-section of an alternative embodiment of the absorbent assembly 200 shown in FIG.

Fig.16. The cross section of the embodiment of the cumulative component 272.

Fig.17. A cross-section of an alternative embodiment of the storage component 272 shown in FIG.

Fig. 18. A cross-section of an alternative embodiment of the side flaps 147 of the article of FIG.

Fig.19. The cross section of another embodiment of the side flaps 147 of the product shown in figure 1, on the plane 4-4.

Fig.20. The cross section of another embodiment of the side flaps 147 of the product shown in figure 1, on the plane 4-4.

Fig.21. A cross-section of an alternate embodiment of the diaper 20 shown in FIG. 1 containing an inner lining along a 3-3 plane.

Fig.22. A cross-section of an alternative embodiment of the diaper 20 shown in FIG. 1, containing an inner lining, on a plane 6-6.

Fig.23. View of an alternative embodiment of the carcass web 149 in a flat, unstressed state, that is, not experiencing any tensile forces from the elastic elements, and before the formation of the side flaps. In this drawing, the outer surface of the diaper is shown facing the person looking at the drawing.

Fig.24. The cross section of the diaper 20 shown in Fig.23.

Fig.25. View of an alternative embodiment of the canvas 149 of the frame shown in Fig.23.

Fig.26. The cross section of the web 149 of the frame shown in Fig.25.

Fig.27. View of another embodiment of the canvas 149 of the frame shown in Fig.23.

Fig.28. The cross section of the web 149 of the frame shown in Fig.27.

Fig.29. View of an alternative embodiment of the activated structure 675 and structure 210 of the attachment of the product shown in figure 1, in a flat, unstressed state, that is, not experiencing tensile forces from the elastic elements. In this drawing, the outer surface of the diaper is shown facing the person looking at the drawing.

Fig.30. View of another embodiment of the attachment structure 210 of the product depicted in FIG. 1 in a flat, unstressed state, that is, not experiencing tensile forces from the elastic elements. In this drawing, the outer surface of the diaper is shown facing the person looking at the drawing.

Fig.31. A cross-section of yet another embodiment of the side flaps 147 of the article of FIG. 1, comprising attached side flaps, on a 4-4 plane.

Fig. 32. The section of the abdominal clamping panel 370, shown in figure 1, along the longitudinal axis 42.

Fig. 33. A cross-section of an alternative embodiment of the diaper 20 shown in FIG. 1 and containing an inner lining along the longitudinal axis 42.

Fig. 34. A simplified section of an alternative embodiment of the inner surface 102 of FIG. 1 along a 3-3 plane.

Fig. 35. A view of an alternative embodiment of the waist regions 36 and 38 shown in FIG. 1, in which these waist regions comprise holes 622.

Fig. 36. View of another embodiment of an absorbent article in the form of a diaper 20, in a flat, unstressed state, that is, not experiencing tensile forces from the elastic elements. In this drawing, the inner surface of the diaper is shown facing the person looking at the drawing.

Fig.37. The cross section of the diaper 20 shown in Fig. 36, along the plane 3-3.

Fig. 38. The cross section of the diaper 20 shown in Fig. 36, along the plane 4-4.

Fig. 39. The cross section of the diaper 20 shown in Fig. 36, along the plane 5-5.

Fig.40. The cross-section of the diaper 20 shown in Fig. 36, along the plane 6-6.

Fig. 41. View of one of the embodiments of the absorbent article in the form of a diaper 20, in a flat, unstressed state, that is, not experiencing tensile forces from the elastic elements. In this drawing, the inner surface of the diaper is shown facing the person looking at the drawing.

Fig. 42. View of another embodiment of the web 149 of the frame in a flat, unstressed state, that is, not experiencing any tensile forces from the elastic elements, and before the formation of the side flaps. In this drawing, the outer surface of the diaper is shown facing the person looking at the drawing.

Fig. 43. View of another embodiment of the web 149 of the frame in a flat, unstressed state, that is, not experiencing any tensile forces from the elastic elements, and before the formation of the side flaps. In this drawing, the outer surface of the diaper is shown facing the person looking at the drawing.

Fig.44. View of the site of the modified non-woven fabric.

DETAILED DESCRIPTION OF THE INVENTION

The terms used in the present description have the following meaning.

The term "absorbent article" means a device that absorbs and holds liquid, and in particular, refers to a device that is installed on the user's body or in close proximity to the user's body, for absorbing and retaining various secretions of the body.

The term “diaper” refers to an absorbent article that is usually worn by children or persons with incontinence, placed in the lower body and specifically designed to receive and hold urinary and fecal secretions. The diaper can be attached using fastening tapes, or be made in the form of panties.

The term “disposable” refers to absorbent articles that are generally not intended to be washed, restored or reused as absorbent articles, that is, which should be thrown away after their first use and disposed of, composted or otherwise environmentally friendly removed as household waste.

The term “longitudinal” refers to the direction going from one waist edge of the product to the opposite waist edge, and generally parallel to the line along which the product has a maximum linear dimension. Directions within 45 ° of this direction are also considered longitudinal.

The term "transverse" means a direction extending from one side edge of the product to the opposite side edge, essentially at a right angle to the longitudinal direction. Directions within 45 ° of this direction are also considered transverse.

The term “circumferential” means a circumferential direction covering the user's waist and lying in a plane substantially parallel to the transverse direction.

The term "located" refers to an element attached and located in a specific place or position and forming a single structure with other elements.

The term “attach” refers to elements bonded or interconnected by gluing, through chemical bonds, by means of fasteners, and so on, that is, by any method suitable for the type of elements and materials that are attached to each other that make up these elements. Suitable methods for attaching or joining the elements to each other are well known and include gluing, pressure bonding, thermal, mechanical bonding, and others. Such attachment methods can be used to attach elements to each other over a specific area — either continuously over it or intermittently. Unless otherwise specified, it is understood that the elements referred to in the present description as attached to each other are attached to each other directly, and between them there is either nothing, or there may be one or more fastening elements, such as glue or a fastening element. Elements referred to herein as attached to each other may be permanently or temporarily attached to each other, and permanent attachment means that to separate these elements, one or both of them, and / or any of the fastening elements must be damaged, as a result of which it will lose its function, and reconnecting or attaching the elements will be impossible, while temporary attaching means that these elements and / or the fastener, if any, can be detached They are separated from each other, and subsequently reattached to each other many times (for example, open and closed), and in essence, the functional properties of these elements, as well as the properties of the fastening element, are preserved.

The term "laminate" refers to elements attached to each other in layers.

The terms “water-permeable” and “waterproof” reflect the permeability of materials in the context of the intended purpose of disposable absorbent products. Namely, the term “water-permeable” refers to a layer or layered structure having pores, openings or interconnected voids that allow liquids to pass through its thickness without external pressure. Conversely, the term “waterproof” refers to a layer or layered structure through which a liquid cannot pass without externally applied pressure. A layer or layered structure that is waterproof in accordance with this definition may be water vapor permeable, that is, “vapor permeable”. Such vapor permeable layers or layered structures are often referred to in the art as “breathable”. As is well-known to those skilled in the art, the most common method for determining the water permeability characteristics of materials used to make absorbent articles is a hydrostatic pressure test, also referred to as a hydrostatic test. The most suitable and most commonly used standard protocols for hydrostatic testing are those approved by INDA (formerly the International Association of Manufacturers of Nonwovens and Disposable Products, now the Association of Manufacturers of Nonwovens) and EDANA (European Association of Manufacturers of Disposable Products and Nonwovens).

The terms “near” and “far” refer respectively to the location of an element near or far from the center of any structure, for example, the near edge of a longitudinally extended element is located closer to the longitudinal axis than the far edge of the same element with respect to the same the most longitudinal axis.

The terms “internal” and “external” mean, respectively, that the element faces the body when the absorbent article is worn, or to the user's clothing worn over the absorbent article. Synonyms of the terms “internal” and “external” include the terms “internal” and “external”, respectively. In addition, when the absorbent article is oriented so that its inner surface is facing up, for example, when the article is prepared to be placed on the user, synonyms of these terms will also include “upper” and “lower”, respectively.

The term "nonwoven" refers to a sheet, web or mat of directionally or randomly oriented fibers made by bonding or tangling these fibers by mechanical, heat or chemical processing. Non-woven materials do not include paper and products that are woven, knitted, combed and felted by wet milling. The fibers may be artificial or synthetic.

The term "abdominal clamping panel" refers to the structural component of the product that resists elongation due to the fact that it produces a cutting force applied around the circumference of the opening for the waist in the diaper, respectively, when the diaper is stretched around this circumference.

The term "pulling force" means the force required to stretch the waist region of the diaper to put the diaper on the wearer.

The term “force providing a stable fit” means the efforts arising in the diaper, ensuring its proper contact with the user's body after putting it on, that is, the comfort of wearing it, tight fit to the body and maintaining its position on the body (in fact, its stable fit).

Description of diaper incarnations

Figure 1-6 shows an example of a diaper 20 in a flat, i.e. unstressed state, before being shaped into panties. 7-9 show a diaper ready to use.

One of the end portions of the diaper 20 can be formed as a front waist region 36. A portion that is opposite to it in the longitudinal direction can be formed as a back waist region 38. The middle part of the diaper 20, stretched in the longitudinal direction between the front waist region 36 and the back waist area 38, can be formed as a crotch area 37.

The base structure of the diaper 20 includes a frame 100. The frame 100 has a laterally extended front waist edge 136 in the front waist region 36 and opposite in the longitudinal direction and also a laterally extended rear waist edge 138 in the front waist region 38. The frame 100 has the laterally extended lateral side edge 137a and opposite to it in the transverse direction and the longitudinally extended right lateral edge 137b, while both side edges of the frame are elongated in the longitudinal direction between the front waist edge 136 and the rear waist edge 138. The frame 100 has an inner surface 102 and an outer surface 104. The frame 100 also has a longitudinal axis 42 and a transverse axis 44. The longitudinal axis 42 passes through the midpoint of the front waist edge 136 and the midpoint of the rear waist edge 138. The transverse axis 44 passes through the midpoint of the left side edge 137a and the midpoint of the right side edge 137b. In an embodiment of the carcass 100 shown in FIG. 1, there are further longitudinally extending and transversely opposing each other side flaps 147a and 147b, which will be described in detail below. The portion of the carcass forming the back layer and side flaps (including side barriers and cuffs) may be formed from a web (hereinafter referred to as “carcass web”) comprising one or more layers. One or more layers forming the carcass web 149 may be waterproof. The layers forming the carcass web 149 may have different transverse lengths or may have the same width. Finally, the carcass web 149, as well as the layer or layers forming the carcass web 149, can be continuous in the transverse and / or longitudinal direction.

The base structure of the diaper 20 also includes an absorbent assembly 200 that can be attached to the frame 100. The absorbent assembly 200 has a laterally extended front edge 236 in the front region 36 and a longitudinally opposite and laterally extended rear edge 238 in the rear waist region 38. The absorbent assembly 200 has a longitudinally extended left side edge 237a and is opposite to it in the transverse direction and extended in the longitudinal direction of the right edge 237b, and both of these lateral edges of the absorbent assembly are longitudinally extended between the front edge 236 and the rear edge 238. The absorbent assembly 200 has an inner surface 202 and an outer surface 204. The absorbent assembly 200 may be symmetrical with respect to the longitudinal axis 42, transverse axis 44 or both of them. In alternative embodiments, the absorbent assembly 200 may be positioned asymmetrically with respect to the longitudinal axis 42, transverse axis 44, or both of them. Thus, for example, the absorbent assembly 200 shown in FIG. 1 is located symmetrically with respect to the longitudinal axis 42 and asymmetrically with respect to the transverse axis 44. In particular, the absorbent assembly 200 shown in FIG. 1 is biased towards the front waist region 36.

The front edge 236, the rear edge 238, the left side edge 237a and the right side edge 237b of the absorbent assembly 200 may be closer to the center of the product with respect to the front waist edge 136, rear waist edge 138, left side edge 137a and right side edge 137b of the frame 100, as is the case in the embodiment of the diaper 20 shown in FIG. In some embodiments, the leading edge 236 and the trailing edge 238 of the absorbent assembly 200 may respectively be closer to the center of the product relative to the front and rear inner abdominal tie panels 370 and 390, for example between the proximal edges 372 and 392 of the inner abdominal tie panels 370 and 390 and the transverse axis 44. In alternative embodiments, one or more edges of the absorbent assembly 200 may coincide with the corresponding edge (or edges) of the chassis 100. In some embodiments, as shown in FIGS. 1 and 32, the inner front and The ventral abdominal compression panels 370 and 390 may overlap with part of the absorbent assembly 200. With such an overlapping configuration, it may make sense that the inner front and rear abdominal coupling panels 370 and 390 are not attached to the absorbent assembly 200 along a portion of the length in the longitudinal direction of the abdominal coupling panels 370 and / or 290, in particular in the transverse central parts of the frame, that is, in the region between laterally opposite side valves 147, for example in blasts 117 and 118, which would ensure that these panels had a waist cover or waist stand, forming a pocket 650, helping to prevent the passage of urine and / or feces along the waist.

The frame 100 may further include an inner lining 22 attached to the back sheet 26 and / or the absorbent assembly 200, as shown in FIGS. 21 and 22. The inner lining 22 may form part of the inner surface 102 of the frame 100 adjacent to the user's body. The inner lining 22 may be formed from a soft material that does not cause skin irritation to the user. Such an inner liner 22 may serve to isolate the user's skin from part of the back sheet 26, which may be desirable, for example, when wearing the diaper 20 under conditions where skin contact with the back sheet 26 may cause discomfort. Materials suitable for making the inner lining 22 are well known to those skilled in the art and include viscose and synthetic non-woven materials such as spunbond or a card made of polypropylene or polyesters. The inner lining 22 may have the same length and width as the back sheet 26.

In alternative embodiments, one or more edges of the inner lining 22 may be closer to the center of the product with respect to the edges of the chassis 100 (i.e., with respect to the side edges 137a and 137b, as well as the waist edges 136 and 138). So, for example, in the diaper 20 shown in FIG. 1, only parts of the inner lining 22 are open (see FIGS. 21 and 22), in the region 606, which is the front clearance between the front edge 236 of the absorbent assembly 200 and the front waist edge 136 of the frame 100, and in the region 607, which is the rear gap between the rear edge 238 of the absorbent assembly 200 and the rear waist edge 138 of the frame 100, while the remaining parts of the inner lining 22 are covered by the absorbent assembly 200 and the side flaps 147a and 147b. Therefore, a laterally extended strip of the inner pad 22 located in the front gap 606 in the front waist region 36 and a similar laterally extended strip of the inner pad 22 located in the rear gap 606 in the rear waist region 38 may be sufficient to isolate the user's skin from the back layer 26 in the data area of the two gaps. The inner lining 22 may be partially located under the side flaps 147 or, in alternative embodiments, over the side flaps 147 in one or both of the waist regions 36 and 38. In some embodiments, as shown in FIG. 33, the inner lining 22 may overlap a portion of the absorbent assemblies 200. With such an overlapping configuration, it may make sense that the inner lining is not attached to the absorbent assembly 200 in part of the length of the inner gasket 22 in the longitudinal direction, especially in parts centered re (in the transverse direction), between lateral flaps 147 opposite each other, for example, in regions 117 and 118, which would ensure that there are waist covers or racks on the inner lining that form a pocket 650, which prevents the passage of urine or feces along the waist .

The base structure of the diaper 20 also includes at least one abdominal tie panel that can be attached to the frame at the waist. When the frame is stretched around the waist circumference in the abdominal coupling panel, a resistance force arises due to its tendency to contract, also applied around the waist circumference of the diaper 20. In Figs. 1-6, the diaper 20 is shown as having four abdominal coupling panels. In particular, FIGS. 1 and 3 show a front inner abdominal tie panel 370 attached to the inside of the frame 100, in the front waist region 36 of the diaper 20. Similarly, FIGS. 1 and 6 show the rear inner panel 390 attached to the inside of the frame 100. , in the rear waist region 38. FIGS. 2 and 3 show a front outer abdominal tie panel 360 attached to the outside of the frame 100 in the front waist region 36. Finally, FIGS. 2 and 6 show a rear outer abdominal tie panel 380, attached to the outside of the frame 100 diaper and 20 in the rear waist region 38. The abdominal clamp panel can be attached to the surface of the absorbent article when it is manufactured in an unstretched state, that is, from the side of the abdominal clamp panel, almost no pulling force will be applied until the waist region of the article will be stretched in the transverse direction, that is, actually before its use. In alternative embodiments, the abdominal clamping panel in the manufacture of the product can be attached to its surface, being already in a stressed state, thereby applying some pulling force to the waist region before using the product.

In various embodiments of the diaper 20, there may be four abdominal tie panels, as described above, or only one, two or three panels, depending on the required level of pulling force applied around the user's waist. So, for example, in some embodiments, only a front external abdominal compression panel 360 can be provided in the diaper 20, while in other embodiments of the diaper 20 there can be both a front external abdominal compression panel 360 and a rear external abdominal compression panel 380. In some embodiments in the diaper 20, there can only be a front inner abdominal compression panel 370, while in other embodiments of the diaper 20, there can be both a front inner abdominal compression panel 370 and a rear inner abdominal compression panel 390. In some embodiments, the diaper 20 may have an outer panel abdominal shrink and shrink internus abdominis panel in the front waist region 36 or the back waist region 38, and only one shrink abdominal side: internal or external - on the opposite waist region. The outer abdominal tie panels 360 and 380 may be attached to the outer surface of the back sheet 26. The inner abdominal tie panels 370 and 390 may be attached to the inner surface 102 of the frame and / or the inner surface 202 of the absorbent assembly and / or the upper surfaces 613a and 613b side flaps 147a and 147b.

When putting on the diaper 20, especially the diaper in the form of panties, the diaper 20 can be pulled up the legs of the wearer, through his hips to the waist.

A number of factors affect the ease of putting on diapers in the form of panties. First, it should be convenient for the user or caregiver to thread the user's legs through the leg openings. Secondly, the abdominal clamping panels 360, 370, 380, and 390 should provide adequate pulling force in the sense that the user or caregiver could stretch the abdominal clamping panels 360, 370, 380, and 390 and pull the diaper up through the hips and buttocks of the user without excessive effort. Excessive pulling forces from the side of the panels make it difficult to put on the diaper for the wearer or the person who is caring for him, for example, for a child who is taught to potty and who learns to pull and pull panties on his own. Finally, the abdominal tie panels 360, 370, 380, and 390 must provide adequate pulling force when wearing the product (i.e., the force with which the abdominal tie panels 360, 370, 380, and 390 act on the wearer's waist when wearing the product, ensuring a stable fit , that is, a comfortable and tight fit to the body and maintaining its position on the body without leaving marks on the skin).

As shown in FIGS. 7-9, when the diaper is worn on the lower part of the user's torso, the front waist region 136 and the rear waist edge 138 of the frame 100 are closed by a ring at the user's waist, while the side edges 137a and 137b of the frame surround the user's legs with a ring. The crotch region 37 is located between the legs of the user, and the absorbent assembly 200 is extended from the front waist region 36, through the crotch region 37, to the rear waist region 38.

Frame Description

The frame 100 includes a waterproof back sheet 26. The back sheet 26 forms an outer surface designed to face clothing worn over the diaper 20. Suitable materials from which the back sheet 26 can be made are well known and include films of polyethylene and other polyolefins. For the manufacture of the back sheet 26, multilayer materials such as laminates from a film 30 and nonwoven fabric 31, or laminates from several layers of nonwoven fabric are also suitable. In such a back sheet, the nonwoven material 31 can be oriented outward of the product, as shown in FIGS. 1-6, providing a feeling and appearance of the outer layer of the product made of fabric, which would not have happened if the layer had been turned outward in the back sheet from the film 30. A multilayer back sheet, for example, a laminate from the film 30 and the nonwoven 31, can be located inside the layer of nonwoven 31, thereby isolating the film 30 from the skin of the user, or even layers of nonwoven 31 and outward and inward, what is the layer of film 30 is located between them. In addition, the layers of nonwoven material 31 and the film 30 in the multilayer laminate may have different widths, for example, the layer of film 30 may be wider than the layer of nonwoven material 31, and vice versa, the layer of nonwoven material 31 may be wider than the layer of film 30.

As shown in figures 1-6, the frame 100 may have extended in the longitudinal direction and opposite each other (in the transverse direction) side valves 147 located on the inside of the diaper 20 facing the user and in contact with the body. Side flaps 147 can be formed by folding parts of the carcass 100 in the transverse direction to the longitudinal axis 42, whereby side flaps 147 and side edges 137 of the carcass 100 are formed. In alternative embodiments, as shown in FIG. 31, side flaps 147 can be formed by attaching an additional layer or additional layers to the frame 100 along each of the side edges 137 of the frame 100 or near them.

Each of the side flaps 147 has a proximal end 157. In the embodiment of the diaper 20 shown in FIG. 1, the side flaps overlap the absorbent assembly 200, i.e., the proximal edges lie closer to the center of the article in the transverse direction than the corresponding side edges 237 of the absorbent assembly 200. Such an overlapping configuration may be preferable since it gives the diaper 20 a more finished look than the non-overlapping configuration. In some embodiments, the valves 147 may not overlap with the absorbent assembly 200.

Each of the side flaps 147 may be attached to the inner surface 102 of the chassis 100 in longitudinally oriented side flap attachment zones 151 in the front waist region 36, and side flap attachment zones 152 in the back waist region 38.

In the embodiment of the carcass 100 shown in FIG. 1, the side flaps 147 can also be attached to the inner surface 102 of the carcass 100 in transversely oriented attachment zones 153 adjacent to the front waist edge 136 and opposite (longitudinally) zones 154 attachments adjacent to the rear waistband 138.

In embodiments in which the leading edge 236 or trailing edge 238 of the absorbent assembly 200 coincides with the front waist edge 136 or the rear waist edge 138 of the chassis 100, respectively, and the side flaps 147 overlap with the absorbent assembly 200, the side flaps 147 may be attached to the absorbent assembly 200 instead of or in addition to attaching to the inner surface 102 of the chassis 100.

In embodiments in which the frame 100 comprises a multilayer web 149, such as, for example, a laminate of a film 30 and a non-woven fabric 31, the non-woven fabric 31 may have a length in the transverse direction, i.e. a width equal to the length in the transverse direction, i.e. the width film 30, or, in other embodiments, the width of the layer of nonwoven material 31 may be smaller or larger than the width of the layer of film 30. In an embodiment in which the nonwoven material 31 has a transverse extension, that is, a width smaller than the width of the film 30, frequent l the frame web 149 folded to form the side flaps 147 can consist solely of a film layer 30 (in other words, in the multilayer carcass web 149, the non-woven fabric 31 can extend along the outer surface 104 from one side side of the carcass 137a to the second edge opposite it Frame 137b; or, in alternative embodiments, nonwoven fabric 31 may be wrapped around the side edges 137a and 137b, covering part of the side flaps 147a and 147b). In an embodiment in which the nonwoven fabric 31 has a transverse extension, that is, a width greater than the width of the film 30, a portion of the carcass web 149 folded to form side flaps 147 may consist solely of a layer of nonwoven material 31 or substantially a layer of nonwoven material 31. Moreover, the nonwoven fabric 31 of the multilayer carcass web 149 may have a length in the longitudinal direction, that is, a length equal to the length of the film 30, or, in other embodiments, less than the length of the film layer 30. In an embodiment in which the woven fabric 31 has a length in the longitudinal direction, that is, a length shorter than the length of the film 30, a portion of the frame 100 not covered by the nonwoven fabric 31 in the front waist region 36 and the rear waist region 38 may be covered with abdominal tie panels 360, 370, 380 and 390. As shown in FIGS. 23-28, 42 and 43, one or more layers (eg, film 30 and nonwoven fabric 31) of the carcass web 149 may contain one or more margins for decoration, for example 615, 618a and 618b. The first design field 615 may contrast with other design fields (that is, there is a visible difference when comparing it with another design field, for example, a second field 618a and a third design field 618b) or with other parts of the back sheet 26, or other parts of the visible surfaces of the diaper 20 (not used, and visible to the naked eye), for example, abdominal tie panels 360 containing a fourth field 660 for decoration, and 380 containing a fifth field 680 for decoration. Design fields 615, 618a, 618b, 660 and 680 may contain one or a combination of separate graphic elements, for example, human hair may be the first graphic element, and the human eye may be the second graphic element), structures of graphic elements, solid or intermittent color area. So, for example, various design fields may contain a continuous repeating structure oriented in the longitudinal direction. In alternative embodiments, fields 615, 660, and 680 may comprise graphic elements (not shown) that are specifically designed to be associated with a particular diaper size, or associated with different parts of the diaper (e.g., front waist region 36, back waist region 38, or crotch area 37 of the diaper 20). Such graphic elements are often called repeating with a certain step pattern, and the step (i.e. length) of such a pattern is usually associated with the length of the diaper 20 or its components, also associated with the length of the diaper. In addition, two or more fields for registration can partially overlap with each other, forming a mixed field for registration.

In some embodiments of the present invention, especially in those embodiments in which a part of the carcass web 149 is folded to form lateral flaps 147a and 147b extended in the longitudinal direction and opposite each other (in the transverse direction), the design field 615 may be so extended that it covers the entire outer surface 104 of the absorbent article (or is visible over its entire surface), and may also cover part of the upper surfaces 613a and 613b of the side flaps 147a and 147b (or be visible on these surfaces x). For clarity, it should be clarified that the design margins can be visible through the nonwoven fabric 31 forming the outer surface 104 of the back sheet 26, or the upper surfaces 613a and 613b of the side flaps 147a and 147b, and their pattern can be applied to the film 30, on top of which nonwoven fabric 31 is attached. In this case, the design fields 615 and 618 will be visible due to certain properties of the nonwoven fabric 31 (for example, its fineness, transparency, translucency, and so on).

In one embodiment, the first clearance field 615 is laterally extended from one lateral edge 137a to the lateral edge 137b of the chassis 100 opposite to it (in the transverse direction). In addition, the first clearance field 615 may cover the outer surface 104 of the chassis 100, may it is desirable that the first clearance field 615 extends beyond the lateral edges 137a and 137b of the chassis 100 and is extended transversely to the center of the product, covering at least a portion of the side flaps 147a and 147b. In alternative embodiments, side flaps 147a and 147b may comprise second and third fields 618a and 618b, respectively. In some embodiments, the design fields 615, 618a, and 618b, 660, and 680 can not only give a pleasant aesthetic appearance to the visible parts of the absorbent article — they can also help distinguish side flaps 147a and 147b from back sheet 26 or components of side flaps 147a and 147b apart each other (for example, to distinguish the cuffs 631 from the side barriers 633), so that it will be easier for the product user or caregiver to correctly position the side flaps 147a and 147b when putting on the diaper 20. In the embodiment shown in FIGS. 23 and 24, the back sheet 26 has a first waveform field 615 starting on the left crease line line 608a of the web 149 and ending on the crease right line 608b of the carcass web 149. Lines 608a and 608b are lines along which the carcass web 149 is folded, resulting in side flaps 147a and 147b of the back sheet 26, as well as side edges 137a and 137b. The second clearance field 618 may extend from the right side edge 619 of the first clearance field 615 to the unfolded right side edge 155b (which becomes the proximal end 157b of the side flap 147b when the frame 100 folds to form the side flaps 147a and 147b). In alternative embodiments, as shown in FIGS. 25 and 26, the first clearance field 615 may be extended from a point located on or near the left side edge 137a of the chassis 100 to a point located on the right side edge 137b of the chassis 100, so that the side flaps 147a and 147b become visually distinct elements. The first clearance field 615, the second clearance field 618a, as well as the third clearance field 618b, if any, can make parts of the side flaps 147a and 147b (e.g. cuffs 631 and side barriers 633) more visually different, especially if second elastic strips 168a are used and 168b, so that the presence of double cuffs (i.e., the presence of the first elastic strips 167a and 167b and the second elastic strips 168a and 168b, the first elastic strips are located in close proximity to the proximal edges 157a and 157b, is visually emphasized side flaps 147a and 147b, and the second elastic strips 168a and 168b are located in close proximity to the side edges 137a and 137b of the frame 100). It should be understood that, as shown in FIGS. 27 and 28, the presence of double cuffs in the product can also be emphasized by the contrast of the first clearance field 615 with respect to the side flaps 147a and 147b, which are not contained in the second and third clearance fields 618a and 618b graphic elements, and instead, these fields are solid in one color.

As shown in FIGS. 42 and 43, the abdominal tie panels 360, 370, 380, and 390 may include additional fields 660, 670, 680, and 690 — fourth, fifth, sixth, and seventh clearance fields, respectively. In one embodiment, the design fields 660 and / or 680 may contain the only graphic elements visible on the outside of the absorbent product (when it is worn), that is, the remaining visible part of the external surface of the absorbent product (when it is worn), no longer contains any graphic elements . In an alternative embodiment, the design field 660 and / or 680 on the visible part of the outer surface of the abdominal clamp panel (when the article is worn) may comprise a multi-color graphic element, or the design field and the rest of the visible external surface of the absorbent article (when put on) may contain one-color graphic elements. In yet another embodiment, the abdominal tie straps 660 and / or 680 may be single-color design fields, while fields 615 or 618 may be multi-color design fields. In some embodiments, the fields 660 and / or 680 may be single-color fields or multi-color design fields and / or contain multi-color graphic elements, and can be used in combination with a back sheet that does not contain graphic elements containing a single-color design field or single or multi-color graphic elements.

In addition, the design field 660 on the abdominal tie panel located in the front waist region may contain a graphic element or graphic elements pointing to the front of the absorbent product, while the design field 680 on the abdominal tie bar located in the rear waist region, may contain a graphic element or graphic elements pointing to the back of the absorbent article, thereby helping the user to position the article correctly before putting it on. Similarly, the design field 615 located on the back sheet in the front waist region may include a graphic element or graphic elements indicating the front of the absorbent product, while the design field 615 located on the back sheet in the rear waist region may comprise a graphic element. or graphic elements indicating the back of the absorbent article.

The proximal edges 157 of the side flaps 147 between the side-by-side (longitudinally) attachment areas of the side flaps remain free, that is, not attached to the inner surface 102 of the chassis 100 or to the absorbent assembly 200. In addition, between the opposite sides (in the longitudinal direction) direction) by the attachment zones, the side valve may include one or more (namely, one, two, three or four straps per side valve) of longitudinally stretched, elastic valve collecting elements, which e may be attached near the proximal end of the side flap by any known method. Each of such elastic valve collecting elements can be attached along its entire length or only part of its length. So, for example, the elastic collecting elements of the valves can only be attached at opposite ends in the longitudinal direction of the ends, without being attached in the middle part of the length. Such elastic valve collecting elements may be located in the crotch region 37 and extended to the front waist region 36, the back waist region 38, or both of them. So, for example, in the embodiment of the chassis 100 shown in FIG. 1, the elastic strip 167 can be attached near the proximal edge 157 of each of the side flaps 147 and extended to the front waist region 36 and the back waist region 38.

Each of the elastic collecting elements of the valves may be located inside the folded edging. So, for example, in the embodiment of the frame 100 shown in FIGS. 4 and 5, each of the elastic strips 167 may be located inside the edging 170 formed near the proximal edge 157 of the corresponding side flap 147. In alternative embodiments, the elastic collecting element (or elastic collecting elements ) the valve can be located between two layers of the frame or can be attached to the surface of the frame 100, while remaining open.

In the extended state, the elastic valve collecting member located adjacent to the proximal edge of each valve allows the edge of the side valve to stretch to a length equal to the length of the frame in a flat, i.e., not stressed state, for example, to the length of the frame 100, as shown in FIG. 1 . When released, the elastic valve collecting members contract, pulling together the front waist region 36 and the back waist region 38, folding the diaper 20 to a U-shape so that inside this U-shape are parts of the diaper 20 that should face the wearer's body . Since each of the proximal edges 157 remains not fixed between the longitudinally oriented side valve attachment zones 151 and 152, the contracting force of the elastic strip 167 lifts the proximal edge 157 of the side valve 147 from the inner surface 102 of the frame 100. Such a rise of the proximal edges 157 when the diaper 20 is when released, raises the side flaps 147 to a position in which they serve as side barriers adjacent to the side edges 237 of the absorbent assembly 200.

As shown in FIGS. 1, 2, 4, 5, 18, 19, and 20, one or more (including, but not limited to, one, two, three, or four strips per valve) of the second elastic strips 168a and 168b may be attached at the side edges 137a, 137b of the carcass 100 (or near them), where it folds, forming side flaps 147a and 147b. When released, the second elastic strips 168a and 168b can collect the lateral edges of the frame 137a and 137b, resulting in side barriers 633a and 633b that prevent urine and feces from flowing. Near the lateral edges 137a and 137b of the carcass 100, where it is folded to form the side flaps 147a and 147b, channels 621a and 621b can be formed so that the part of the carcass web 149 forming the channels 621a and 621b remains generally not glued to itself and with the second elastic strips 168a and 168b, in particular in the front and back waist regions 36 and 38, so that the second elastic strips 168a and 168b remain “floating” in the voids of the channels 621a and 621b, which allows the second elastic strips 168a and 168b to accept the length they had when glued after diaper 20 is cut to length during manufacture.

As shown in FIGS. 2, 4, 5, 18, 19 and 20, the side flaps 147 can be converted into valve cuffs 631 and side barriers 633. In particular, side barrier pads may be located between the first and second elastic strips 167 and 168 630. The placement of the side barrier pads 630 with respect to the longitudinal axis 42 directly affects the depth of the valve cuffs 631 and the size of the side barriers 633. For example, when the side barrier pads 630 are displaced laterally to the center of the product, the depth of the valve cuffs 631 decreases decreases, and the size of the side barriers 633 increases. Conversely, as can be seen in Fig. 18, the side barrier pads 630 are displaced in the transverse direction from the center of the product, the depth of the valve cuffs 631 increases, and the size of the side barriers 633 decreases. The depth of the valve cuffs 631 and / or the size of the side barriers 633 can vary in different versions of the product, providing its maximum functionality. In one of the embodiments, as shown in Fig. 19, it was found that reducing the depth of the valve cuffs 631 while increasing the size of the side barriers 633 provides easier donning of the product made in the form of panties. This configuration increases the size of the leg openings (not shown in FIG. 19), which makes it easier for the user to put their feet into the product. In the implementation of another embodiment, it was determined that increasing the depth of the valve cuffs 631 while reducing the size of the side barriers 633 provides better protection against fluid leakage and a more complete use of the absorbent capacity of the diaper.

The depth of the valve cuffs 631, measured from the proximal edge 157 of the side valve 147 to the side barrier strip 630, may be from about 2 cm to about 7 cm, from about 2.5 cm to about 6.5 cm, or from about 3 cm to about 6 see The length of the side flap 147, measured from the proximal edge 157 of the side flap 147 to the side edge 137 of the chassis 100, may be from about 4.5 cm to about 9.5 cm, from about 5 cm to about 8.5 cm, or from about 5.5 cm to about 7.5 cm. In an alternative embodiment, as shown in FIG. 20, a second pair of side bars may be used. side plates 630c and 630d so that it is possible to adjust the height of the valve cuffs 631 of the side valves 147 without changing the height of the side barriers 633. Between the side barrier plates 630a and 630c and / or 630b and 630d, channels 634a and 634b may be formed, which may contain one or more additional elastic collecting elements (strips) 635a and 635b located therein.

In embodiments in which the side flaps 147 are formed by attaching additional layers (e.g., film 30 and / or nonwoven fabric 31) to the frame 100, respectively, or adjacent to the side edges 137a and 137b of the frame 100, and second elastic strips 168a and 168b may be located and attached between the layers (for example, films 30 and / or nonwoven fabric 31) - see Fig. 32. Layers (for example, films 30 and / or nonwoven fabric 31) can also form channels (for example, 621a and 621b) that perform the same functions as in the embodiments described above.

As shown in FIGS. 36-41, the base structure of the diaper 20 includes a frame 100. The frame 100 has a laterally extended front waist edge 136 and opposite (longitudinally) and a laterally extended rear waist edge 138. The finished frame 100 has folded longitudinally folded segments of the side edges 133a and 133b in the front waist region and opposite them in the longitudinal direction and themselves also extended in the longitudinal direction of the folded segments 133c and 133d side new edges in the rear waist region, as well as longitudinally cut cropped segments 135 of the side edges at least in the crotch region, and each of the cropped segments 135 of the side edges connects the corresponding front and rear folded segments 133 of the side edges. The corresponding folded segments of the side edges 133 and the trimmed segments 135 of the side edges form complex side edges 137, connecting the front waist edge with the rear waist edge. The frame 100 has an inner surface 102 and an external surface 104. The frame 100 also has a longitudinal axis 42 and a transverse axis 44. The longitudinal axis 42 passes through the midpoint of the front waistband 136 and through the midpoint of the rear waistband 138. The transverse axis 44 passes through the midpoint the left side edge 137a and the midpoint of the right side edge 137b. In the embodiment of the carcass 100 shown in FIG. 36, there are further longitudinally extending and laterally opposing lateral flaps 147a and 147b, which will be described in detail below.

In the finished diaper, the frame is usually in the form of an hourglass, as in the embodiment of the diaper 20 shown in Fig. 36. Such a shape, other than rectangular, may be desirable in order to better match the body contours when worn. Such a shape may also be desirable, as it suggests that the diaper will fit well between the user's legs.

The shape of the hourglass is given to the carcass 100 by removing its opposite parts in the transverse direction at least in the crotch region 137, as a result of which lateral recesses 139 are formed, which are opposite to each other in the transverse direction. Due to the presence of 100 such side recesses 139 in the carcass the frame in the transverse direction along the pepper axis 44 and near it is slightly smaller than its size along the front waist edge 136 and the rear waist edge 138, that is, the frame becomes already in the crotch area 37, it by the waist edges 136 and 138.

The contour of the side recess 139, formed by removing the folded material along the cropped segments 135 of the side edges, is determined by the contour of the cropped segment of the side edge. The contour can be a continuous arc of a circle. In alternative embodiments, this contour can be complex and consist of two opposite opposite arc sections connected by an almost straight section 141, as in the embodiment of the diaper 20 shown in Fig. 36. Side recesses 139 may be located symmetrically relative to the longitudinal axis 42 and / or the transverse axis 44 of the frame 100, as, for example, in the embodiment depicted in Fig.36. Side recesses 139 can also be located asymmetrically with respect to the longitudinal axis 42 and / or transverse axis 44. For example, side recesses 139 can also be located symmetrically with respect to the longitudinal axis 42 and asymmetrically with respect to the transverse axis 44, for example, can be shifted towards the front waist edge 136.

As a result of the removal of the carcass parts opposite to each other and the formation of the side recesses 139, only the segments 133 of the folded side edges that are separated from each other in the longitudinal direction remain intact, preventing the migration of the body secretions and their going beyond the diaper 20. In particular, they remain intact only the front segments 133a and 133b of the folded side edges and the rear segments 133c and 133d of the folded side edges. When the side portions 142 are removed to form the side recesses 139, the side flaps 147 are detached from the frame layer beneath them along the contour of each of the cut segments 135 of the side edges, resulting in an opening through which body excretions can pass. Therefore, the frame 100 includes at least one longitudinally extended and continuous barrier lining 630 located in proximity (in the transverse direction) to the corresponding truncated side edge segment 135. Each of the side flaps is attached to the frame layer 100 located underneath it at the location of the barrier lining 630. Each barrier lining 630 is waterproof at least in the transverse direction and acts as a dam that prevents leakage of body secretions between the front and rear segments of the folded folded side edge.

For mounting each of the side flaps 147, one barrier pad 630 or, alternatively, two or more barrier pads 630 can be used. If there is one or more barrier pads 630 used to attach the side flaps, a zone for attaching the barrier pads appears on these valves ( each valve in this sense has its own zone of attachment of the barrier linings). So, for example, in the embodiment of the diaper 20 shown in FIG. 36, there may be two laterally divided barrier pads 630 used to fasten each of the side flaps 147. In another embodiment of the diaper 20 for fastening each of the side flaps may be one barrier pad 630 was used. In yet another embodiment of the diaper 20, four barrier pads 630 separated in the transverse direction can be used to secure each of the side flaps. Using Unities The use of a barrier lining 630 on each of the side flaps minimizes the cost of the diaper 20. On the other hand, the use of several barrier pads on each of the side flaps 147 improves the reliability of the product and prevents leakage of the body through its edges if the continuity of the seal is broken at that point.

The barrier linings 630 can be oriented generally parallel to the longitudinal axis 42 and to each other, as shown in Fig. 36. Barrier pads in their configuration can be mirror images of each other.

Barrier linings 630 can be attached using bonding methods based on heat, pressure, a combination of heat and pressure, thermal bonding, pressure bonding, ultrasound, bonding and other methods and their combinations used in the art to form a waterproof transverse direction of fastening elements. Each of the barrier linings 630 may be extended from the front waist edge 136 to the rear waist edge 138, as shown in FIG. In alternative embodiments, the barrier pad 630 may be less elongated in the longitudinal direction. So, for example, the barrier pad 630 can be extended in the longitudinal direction only by the length of the trimmed segment 135 of the side edge.

The barrier linings 630 can initially be extended through the side portions of the carcass 100, which ultimately are removed when the side recesses 139 are formed. However, some barrier linings after the formation of the side recesses 139 can remain continuous along the length of the article, and examples of such linings 630 are presented in the diaper embodiment 20 shown in FIGS. 36 and 41.

The barrier linings can be essentially straightforward, as shown in FIG. In alternative embodiments, the barrier linings 630 may be curved. For example, the barrier pad may take the form of a generally concentric contour of the cropped side edge segment 135, following the contour of that segment from a point on or near the front segment 133a or 133b to a front folded side edge to a point on the 133c or 133d segment (or near ) of the corresponding rear folded side edge. With this configuration, the segment of the front folded lateral edge, the lateral seal and the segment of the corresponding rear folded lateral edge in the aggregate can form a longitudinally continuous barrier that prevents the body secretions from flowing between the waist edges in the transverse direction. In yet another embodiment, in which the segment of the front folded side edge, the side seal and the segment of the corresponding rear folded side edge together form a longitudinally continuous barrier that prevents the body secretions from flowing in the transverse direction, the barrier pad 630 may be quite wide and extended from the inner the edges (in the transverse direction) of the trimmed side edge segment 135 to the folded side edge segments 133, as side seals in the embodiment shown m in Figure 41.

Each of the barrier linings 630 can be formed from a relatively narrow strip, the length of which is at least ten times its width, as in the case of the side seals shown in Fig. 36. In alternative embodiments, the barrier linings may be formed from relatively wide tapes, the length of which is less than ten times their width, as in the embodiment depicted in Fig. 41.

On each of the lateral edges of the frame 137 (and / or near it), the front waist region 36 and the rear waist region 38 are fastened together, forming a finished product having an opening 10 for the waist and two opening 12 for the legs. The fasteners may take the form of side seams 115. Such side seams can be formed at the overlapping areas of the front and back waist regions so that the inner surface of one of them overlaps the outer surface of the second of them. In another embodiment, a side seam may be formed at a place where the side edges of the front and back waist regions are joined butt. In some embodiments, the side seams can be formed at places where the inner or outer surfaces of the front and back waist regions are connected face to face, that is, in the form of a so-called flange connection. Examples of such flange connections are shown in FIGS. 7-9.

Side seams 115 (FIG. 7) may include primary fastening elements 700 that allow for multiple mounting. Primary fastening elements 700 may include any reusable fastening system components well known to those skilled in the art. Thus, for example, primary attachment elements 700 may comprise mechanical fasteners, for example, hook-loop, hook-hook, fasteners, buttons, buttons, latches, ribbons, magnetic fasteners, adhesion and cohesion based fasteners, combined devices mounts and others. Some examples of suitable systems and / or fasteners are discussed in US Pat. No. 3,848,594; 4,662,875; 4,846,815; 4,894,060; 4,946,527; 5,151,092; 5,221,274; 6,251,097; 6669618 and 6432098; US patent applications 11/240943 "Non-popping open macro fastener" and 11/240838 "Means for fastening in several positions", adopted September 30, 2005. In addition, additional possible configurations of diaper-panties are presented in US patent 5246433; 5,569,234; 6,120,487; 6,120,489; 4,940,464; 5,092,861; 5,897,545; 5,957,908; and US Patent Publications 2003/0233082; 2005 / 0234419A1; 2003/0088220; 2005/0130821; 2003/0233082; 2005/0215971; 2005/0215970; 2007/0078427; 2007/0093769; 2007/0074381; 2007 / 0078426A1 and 2008-0107861.

A side seam may be formed at a place where the front and back waist regions overlap, so that the inner side of one region lies on the outer side of the other region. In such an embodiment, one fastener 700 may be located on the inner surface of the side flap, while a second fastener may be located on the outer surface of the back sheet. In alternative embodiments, a side seam may be formed where the side edges of the front and back waist regions are joined butt. In such an embodiment, one fastener 700 may be located on the outer surface of the back sheet of both waist regions and / or on the inner surface of the side flaps of both waist regions so that it extends from one waist region to the opposite waist region. In yet another embodiment, a side seam may be formed at a place where the inner or outer surfaces of the front and back waist regions are connected face to face, that is, in the form of a so-called flange joint. Examples of such flange connections are shown in FIGS. 7-9. In some embodiments, fasteners 700 may be used to adjust the position of the product on the user's body after it is worn. Secondary fasteners (not shown) can be used to increase tension around the waist after putting on the product and ensuring its stable fit. Secondary fasteners (not shown) may include fasteners of any type known in the art, generally including one or another element that allows you to increase tension around the waist. A secondary fastener (not shown) can be located next to one of the primary fasteners 700 or can be made integrally with one of the primary fasteners 700. Secondary elements (not shown) are generally designed to further customize the fit of the product on the user's body. It should also be understood that in the structure of the side seam 115, providing reusable fastening, can be included and a larger number of fasteners, such as primary fasteners, secondary fasteners, fasteners of the third level and so on.

In addition, it should be understood that the fastening elements 700 need not have an unlimited service life, but it will be sufficient so that the fastening elements 700 can be closed and opened several times in a row during the typical expected life of the absorbent article. It should also be understood that the bonding force provided by these elements can weaken each time, but in general, such a weakening will not be significant, since it will still be sufficient in terms of its purpose.

Part of the frame 100 or the entire frame can be made extensible to a degree greater than the intrinsic degree of extensibility of the material or materials of which the frame is made, for example, back sheet material 26. Additional extensibility may be desirable from the point of view of better fit of the frame 100 to the user's body when his movements. Additional extensibility may also be desirable, for example, so that before using the product, the user can stretch the front waist region 36, the back waist region 38, or both of them, and a diaper 200 with such a frame of the same size could be worn by users with different waist sizes. The extensibility of the product may slightly change its shape when donning, but in general it can be expected that the diaper 20 will retain the shape of the hourglass, since one or both of the waist regions undergoes the main stretch and the crotch area undergoes much less stretch. In addition, additional extensibility can reduce the cost of the diaper, since the same amount of material that will be spent on the manufacture of a small diaper and does not have a tensile function can be spent on the manufacture of a small diaper having such a function, and which is equally suitable for users with large waist sizes.

A portion of the carcass 100 in the front and rear waist regions 36 and 38 may be transverse tensile to a maximum value greater than the maximum stretch value of the other part of the carcass 100, i.e., in the crotch region 37, so that when the maximum stretch in the transverse direction of all the listed areas: front waist 36, back waist 38 and crotch 37 - the frame 100 takes the form of an hourglass. In one embodiment, a portion of the chassis 100 lying under (or in close proximity to) the abdominal tie panel (e.g., under the front / rear outer / inner abdominal tie panels 360, 370, 380, and 390) can be stretched to the maximum extent greater than the maximum the degree of extensibility of other parts of the frame 100, for example, the crotch area 37, which facilitates putting the diaper on the user, as this stretching allows you to increase the opening 10 for the waist and easier to draw it through the hips, and in addition, it allows you to expand and right orientation of the openings 12 for the legs, which facilitates the passage of the legs through these openings.

Additional extensibility of the carcass 100 in the transverse direction can be achieved in various ways. So, for example, the material or materials of which the frame 100 is made can be folded using various known methods. In alternative embodiments, the entire framework or part thereof may be intermittently activated, resulting in a structured, elastic-like formed web or laminate of webs, an example of which is described in US Pat. No. 5,518,801, issued May 21, 1996 (Chappell et al.). Such a material in the form of a modified web includes different laterally extended regions in which the starting material has been embossed or otherwise deformed, and a structure has been created from generally longitudinally oriented alternating ridges and depressions, and longitudinally extended between these altered regions areas of unchanged material. The material in the form of a modified web can be stretched in the direction perpendicular to the ridges, until the ridges and depressions are aligned to a flat state, with much less force than the straightening field. In addition to lateral extensibility, the above-described material in the form of a modified laminated sheet gives the back sheet 26 an improved texture and tactile feel of the fabric. Such deformation gives the film 30 a fabric texture and increases the airiness of the nonwoven layer 31 in the backsheets 26 made of multilayer laminates from the film 30 and the nonwoven 31.

An example of a fragment 300 of such a material 305 in the form of a modified web is shown in FIG. Such a modified web material 305 includes discrete transverse regions 310 in which the starting material has been embossed or otherwise deformed, and a structure has been created from generally longitudinally oriented alternating ridges 312 and depressions 314. The modified web material 305 also includes transversely elongated regions 316 of unchanged material located between transversely elongated changed regions 310.

Such a web of modified material 305 can be stretched in the transverse direction over its original size with the application of significantly less force than is required to stretch the same material, but not modified. In particular, when forces are applied to the modified material in opposite directions, generally perpendicular to ridges 312 and depressions 314, this material stretches along the axis along which the forces are applied, and resistance forces appear mainly in unmodified regions 316. The resulting resistance force as a whole less than that which occurs in the unmodified material when stretched by the same amount, at least until the ridges and depressions in the modified areas are aligned to a flat state, and a resistance force will also begin to be generated in these areas. Thus, such webs of modified material within their tensile properties have properties similar to those of elastic materials, and such longitudinal tensile characteristics may be desirable for an absorbent article. Moreover, such modified materials can be made of relatively inexpensive materials that are not elastic in nature, and their use for the manufacture of absorbent products can provide additional advantages in terms of reducing their cost.

In alternative embodiments, a portion of the carcass can be continuously activated (for example, rolled out on a special machine and thereby highly elastic, as described in US Pat. No. 5,366,782 (issued November 22, 1994, Curro et al.)). A machine (not shown) used for such processing comprises a pair of opposite rollers (not shown) with engaged teeth (not shown). The teeth of the rollers cause a small local plastic deformation of the sections of the canvas that fall on them, as a result of which the entire frame (or its parts processed on such a machine) becomes tensile. In one embodiment, the back sheet 26 may be rolled out in a part of the front waist region 36 and / or the back waist region 38, for example, in a part of the frame 100 located under or next to the front and / or rear inner and / or external abdominal coupling straps 360, 370, 380 and 390, while the rest of its parts may contain a structured elastic-like modified web.

The above-described method of activating the blade using a pair of gear rollers makes it possible to obtain various types of activating deformation of the skeleton web materials 149 of the frame or back sheet 26 passed through it, by changing the shape of the teeth of the rollers and the nature of their engagement. In some embodiments, the teeth of one of the rollers can be continuous around the circumference of its lateral surface, and the other roller can be discontinuous around the circumference of the lateral surface, resulting in intermittent activation of the material being processed (and as a result, in fact, for example, a structured elastic-like can also be obtained modified web), or continuous activation of repeating sections of the web with a certain step (and, for example, a web with continuous activation in the front and back can be obtained th lumbar regions, and without activation in the perineal region). The tooth engagement depth affects the degree of local tension and / or plastic deformation of the web material, i.e., the final extensibility of the web.

In some embodiments, the frame web 149 may be more activated in some parts of the side barriers or valve cuffs, because, for example, the length of the activated / deformed sections or the depth of engagement of the teeth of the processing rollers may be greater. In these types of embodiments, portions of the front and rear waist regions that are in close proximity to the lateral edges may contain longer longitudinally oriented ridges and / or depressions, while the remaining portions of the front and rear waist regions may contain shorter longitudinally oriented ridges and / or depressions. In still some embodiments, portions of the front and rear waist regions located in close proximity to the lateral edges may contain material that is more deformed, for example, longitudinally oriented higher ridges and deeper depressions, while the remaining parts of the absorbent article may contain oriented in the longitudinal direction less high ridges and less deep troughs.

In some embodiments of the product, the carcass web 149 in the front and back waist regions may comprise both areas activated in a continuous manner (e.g., by rolling) and regions with intermittent activation (i.e., areas of a structured, elastic-like modified web). These activated structures may be adjacent to each other or even overlap each other. So, for example, in one embodiment of the product, the entire carcass web 149 can be activated in an intermittent manner to form a structured elastically similar modified web, and some parts of the carcass web 149 located in the front and back waist regions can also be continuously activated, so that areas of discontinuous activation will overlap with areas of continuous activation.

As shown in FIG. 34, if the product uses external abdominal tie panels 360 and 380, but does not use internal abdominal tie panels 370 and 390, wrinkled sections 636 on the inner surface of the front and the back waist regions 36 and 38. Namely, the frame 100 (including the back sheet 26, side flaps 147 and the inner lining 22, if any) may be wrinkled, thereby providing a wavy inner surface 102 with wrinkled portions 636. Read etsya that wrinkled portions 636 render the material more "breathable", that is, create a healthier environment around the user's skin, especially in the waist area.

In alternative embodiments, when the product utilizes internal abdominal tie panels 370 and 390 but does not use external abdominal tie panels 360 and 380, wrinkled portions 636 on the outer surface of the front and back waist regions can be created by continuous activation (e.g., rolling). 36 and 38. Namely, the frame 100 (including the back sheet 26, side flaps 147, and the inner lining 22, if any) may be wrinkled, thereby providing a wavy outer surface 104 with corrugated portions 636. Wrinkled areas 636 are believed to provide better extensibility of the waist regions of the article.

The frame 100 in the front waist region 36 and / or the rear waist region 38 can be rolled by the entire width or only part of its width. In still some embodiments, the carcass 100 may be rolled out in those places where the side flaps 147a and 147b overlap and are connected to the carcass 100, that is, in the side flap attachment zones 151, 152, 153 and 154. The rolling can take place before the parts of the frame 100 are folded together and the side flaps 147a and 147b are formed, or, in alternative embodiments, after the formation and / or attachment of the side flaps 147a and 147b. In addition, rolling can be carried out after attaching the front and / or rear internal and / or external abdominal tie panels 360, 370, 380 and 390.

The front center (in the transverse direction) part 118 and the rear center (in the transverse direction) part 118 of the frame 100 can have a tensile range different from the stretch range of the side flap zones 151, 152, 153 and 154, in which the side flaps 147a and 147b can be attached to the inner surface 102 of the frame. In addition to this, or alternatively, the central (transverse) portions 117 and 118 can be more or less extensible when predetermined tensile forces are applied in opposite directions (that is, they can be lighter or harder to stretch) than the frame sections in the areas of attachment of the side valves. So, for example, if the frame is made to be uniformly stretched across the entire width before the side flaps are attached, the appearance of two layers of material in the areas where the side flaps are attached after the formation of the side flaps can lead to a decrease in the transverse stretch of these sections when the same tensile forces are applied, since the side flaps in this case play the role of parallel springs, which must be stretched together with the sections of the frame underneath. In yet another embodiment, the modified central (transverse) regions of the carcass can be deformed to a greater or lesser extent than the modified regions in the attachment zones of the side flaps, as a result of which the central (transverse) regions of the carcass can be obtained that are lighter or harder to stretch than the corresponding areas in the areas of attachment of the side flaps.

Description of abdominal clamping panels

As shown in the drawings, each of the abdominal tie panels has a circumferentially-extended distal (in the longitudinal direction) edge located on or near the corresponding waist edge of the chassis 100 and opposite to it in the longitudinal direction is the circumferentially proximal (longitudinal direction) edge located closer to the transverse axis 44 than the far (in the longitudinal direction) edge of the same abdominal tie panel. Each abdominal clamping panel also has opposite longitudinally extending lateral edges, an inner surface and an outer surface.

In particular, the front inner abdominal clamping panel 370, if any, has a circumferentially extended distal (in the longitudinal direction) edge 371 and a proximate circumferential (longitudinal direction) edge 372 located in the longitudinal direction opposite it in the longitudinal direction. The front inner abdominal clamping panel 370, if present, also has opposite longitudinally extending lateral edges 373, an inner surface 374, and an outer surface 375. Similarly, the posterior inner abdominal tie panel spruce 390, if present, has a distal edge 391, proximal edge 392, side edges 393, inner surface 394 and outer surface 395. Similarly, the front outer abdominal tie panel 360, if present, has a distal edge 361, proximal edge 362 , lateral edges 363, inner surface 364, and outer surface 365. Similarly, the rear outer abdominal tie panel 380, if present, has a distal edge 381, a proximal edge 382, side edges 383, an inner surface 384, and an outer surface 385.

Each of the abdominal tie panels shown in FIGS. 1, 2, 3, and 6 has a circumferential extent substantially equivalent to the transverse extent of the chassis 100 in the corresponding front or rear waist region. In such embodiments, each of the abdominal tie panels can be attached to the chassis 100 at locations where the front and back waist regions 36 and 38 are respectively fastened to each other. So, for example, if a side seam 115 is formed using pressure bonding, thermal bonding, or some other type of bonding, including ultrasonic welding, the abdominal tie panel can be attached to the frame with the same side seam so that the side seam will be extended essentially through the entire thickness of the carcass 100 and the abdominal clamp panel. Bonding all layers to each other using one seam formed using one bonding method can provide advantages such as simplification and cheapening of the manufacturing process in the manufacture of the product.

In alternative embodiments, any of the abdominal tie panels may have a circumferential extension less than the transverse extension of the chassis 100, respectively, in the front or rear waist region. So, for example, the inner abdominal tie panel 370 and / or 390 may have a transverse extent almost the same as the distance between the proximal edges 157 of the side flaps 147. In another embodiment, the inner abdominal tie panel 370 and / or 390 may have a transverse extension a direction greater than the distance between the proximal edges 157 of the side flaps 147, but less than the distance between the side edges 137 of the frame 100. Sections of such an inner abdominal tie panel lying outside (in the transverse direction, from the center of Elia) near the edges 157 of the side flaps 147 may be located (in the form of a sandwich layer) between side flaps 147 and the inner surface of the frame 102,100.

The inner surface of each of the abdominal tie panels is in contact with the skin of the user when the diaper 20 is worn. Therefore, the layer forming the inner surface of the abdominal clamping panel should preferably be made of a soft material that does not irritate the skin of the user. Suitable materials for this are well known in the art and include viscose and synthetic non-woven materials such as polypropylene, polyethylene and other spunbond or card type olefin materials.

The abdominal tie panel may have a laminated structure. In particular, the abdominal tie panel may include an inner layer and one or more additional outer layers. An elastic version of one of the above-mentioned suitable materials may comprise a non-woven material having substantial elastic properties, and such material can be used to make any of the layers. So, for example, the front inner abdominal coupling panel 370 having a laminated structure is depicted in FIG. 10. Such an abdominal tie panel may include an inner layer 82 in contact with the skin and one or more elastic layers 83 laminated to the inner layer 82. Suitable materials for making the elastic layer 83 are well known in the art and include natural rubber strips, strips of synthetic rubber, elastomeric films and so on. The material selected for the manufacture of the elastic layer 83 may have an elastic force proportional to its elongation. As shown in FIG. 10, the abdominal tie panel may also include an outer cover layer 84 laminated with an elastic layer 83 on its surface opposite the bonding surface with the inner layer 82, resulting in a three-layer laminate in which the elastic layer 83 is clamped. as in a sandwich, between the inner layer 82 and the outer cover layer 84.

The layers of the abdominal tie panel can be laminated to each other using any method appropriate to the nature of the layers and materials from which they are made that are bonded to each other. Thus, for example, the elastic layer can be held stretched when it is attached to the free-standing inner layer 82 and / or the outer cover layer 84, if any, and then released. Having compressed, the elastic layer 83 can collect the inner layer 82 in such a way that wrinkles or wrinkles appear on it, and in the resulting laminate, when it is stretched to the original size of the inner layer 82 (and / or the outer cover layer 84, if any), the tensile strength will be render only the elastic layer 83. A similar result can be achieved, for example, by first assembling the inner layer 82 (and / or the outer cover layer 84, if any), for example, in the form of folds, and then attaching the elastic layer 83. the laminated laminate can be stretched to the original size of the inner layer 82 (and / or the outer cover layer 84, if any) in the direction perpendicular to the crests of the folds, and only the elastic layer 83 will provide resistance to stretching.

In some cases, the lamination of the elastic layer 83 and the inner layer 82 (and / or the outer cover layer 84, if any) can be done when they are all in an unstressed state. After that, all or part of the surface of the resulting laminated abdominal clamping panel can be activated by lengthening with the formation of local tears or deformed areas in the portion 85a of the inner layer 82 (and / or the portion 85c of the outer cover layer 84, if any). Fig. 11 shows an elongated abdominal clamping panel having an activated portion 85, with dashed lines showing the deformed portion 85a of the inner layer 82 and the portion 85c of the outer cover layer 84, which means deformation, tearing and / or separation of fibers in these sections of nonwoven materials. The deformed sections 85a of the inner layer 82 (and / or 85c of the outer cover layer 84, if any) in the thus obtained activated section 85 of the laminate exhibit little or no resistance to stretching the panel. So, for example, if a non-woven fabric is used to make the inner layer (and / or the outer cover layer 84, if any), torn-deformed sections typically include areas of deformation, tearing or separation of fibers that make such torn-deformed sections essentially incapable of transmitting tensile forces from the plane of the nonwoven material. Examples of suitable methods of such activation, well known in the art, are rolling processes.

If desired, a combination of various methods of lamination can be used, provided that they correspond to the nature of the layers bonded together and the materials used for their manufacture. In embodiments of abdominal tie panels in which films and non-woven materials are used for their manufacture, the film and non-woven material may differ in both longitudinal and transverse dimensions. For example, the abdominal tie panel may comprise a laminate of film and non-woven material, in which the film is laterally extended only along part of the extent of the non-woven layer in this direction. In another embodiment, the film layer in the abdominal tie panel can be extended in the longitudinal direction only along part of the extent of the nonwoven layer in this direction. This design allows you to minimize the amount of actively stretchable material and thereby reduce the cost of the product.

The abdominal tie panel may have constant tensile characteristics over its entire area, or different tensile characteristics in its various parts. So, for example, part of the abdominal clamping panel can be maximally stretchable in the transverse direction to a greater extent than the neighboring part, which allows its optimal fit on the user's body. The difference in the degrees of stretching can be achieved by varying the parameters of the processes of lamination and / or activation, for example, by varying the degree of local elongation in different parts of the panel during activation.

Some users would like the diaper to be opened by tearing it to remove the diaper from the user's body. As an indicator of the place where the diaper should be torn to open it, a visible line can be printed on the abdominal tie panel and the portion of the frame 100 adjacent to it, indicating the place of tearing. So, for example, two opposed (transverse) lines 72a, 72b can be printed on the front external abdominal tie panel 360, indicating the tear points, as shown in FIG. By tearing the outer abdominal clamping panel and the portion of the frame 100 underneath (as well as the inner abdominal clamping panel underneath, if any), the diaper 20 can be released from the waist along both lines opposite each other in the transverse direction pointing to the gap. and both legs of the user.

Such a line 72 indicating the rupture site may be printed on any of the abdominal tie panels. For some users, the presence of such lines 72, indicating the rupture on the front external abdominal clamping panel, may be preferable, since when removing the diaper, the baby is usually laid on the back, and lines 72 indicating the rupture located on the front abdominal the tie panel will be more visible than such lines on the posterior abdominal tie panel.

In order to minimize the force required to open the diaper 20 with a gap when it is removed from the user, light tear lines can be provided. Such easily tearing tear lines can be formed in a layer or in the entire laminate, consisting of several layers, by forming in it a region that is likely to undergo tearing when tension is applied to the material, that is, by forming a weakened region in which it will tear when it stretching, the formation of a brittle area in which it is likely to break under tension and / or bending, or in any other way suitable for creating brittleness in a certain place, and corresponding to the nature of the used ma erialov.

A pair of transverse lines of light tear opposed to each other in the transverse direction 80a and 80b may be formed on the rear outer abdominal tie panel 380, as well as on the part of the frame 100 covered by the rear abdominal tie panel 380, as shown in FIG. 9. In this embodiment, easily torn lines 80 intersect the distal edge 381 of the posterior external abdominal panel 380 closer to the center of the product (in the transverse direction) compared to the lateral edges 383 and intersect its proximal edge 382 at the intersection of the proximal edge 382 and the lateral edge 137 of the frame 100 in the fields each of the leg openings. Light burst lines 80 may be located anywhere, but their configuration shown in certain embodiments may be preferred. So, for example, if the lines of easy tearing 80 are generally linearly extended towards the transverse axis 44, then solid parts of the diaper 20 remain around the legs of the user 20. If the design of the lines of 80 easy tearing ensures their intersection with the edges of the leg openings, as described above, then when the diaper 20 is torn along both lines of easy tearing opposite to each other in the longitudinal direction 80, the diaper 20 is released from the waist and both legs of the user.

Such light tear lines 80 may be located on any abdominal tie panels. For some users, the presence of such lines of 80 easy tearing on the front external abdominal tightening panel may be preferable, since when removing the diaper, the baby is usually laid on the back, and lines 80 of easy tearing located on the front abdominal tightening panel will be more noticeable and more convenient to use than such lines on the posterior abdominal tie panel. If both the external and internal abdominal tie panels are used in the front and / or back waist region, then light tear lines can be formed in both abdominal tie panels, as well as in the portion of the frame 100 located between them.

In some embodiments, both light tear lines and lines indicating tear points can be made. Thus, for example, lines indicating break points may be printed on or adjacent to light break lines. In such embodiments, the presence of clearly visible lines indicating break points may help the user determine the location of the light break lines when removing the diaper 20.

The diaper 20 may include holes 622 located on the front and / or rear waist regions 36 and 38, respectively, as shown in Fig. 35. Holes 622 can be extended through the rear inner abdominal tie panel 390, the back sheet 26, including nonwoven fabric 31, and the rear outer abdominal tie panel 380, allowing air to pass and making the product “breathable”. Holes 622 may be formed by any suitable method known in the art, including forming holes with hot needles, a laser, notches, cutting with rotary tools, and other methods. In one of the methods, holes 622 are formed using a device (not shown) containing a pair of rollers rotating in opposite directions and engaging, one of which contains ridges and grooves extended along the circumferences of its lateral surface, and the second - teeth, tapering from the base to the top, and the tooth in the cross section at the base has a longitudinal dimension larger than the transverse dimension. The rear inner abdominal compression panel 390, the back sheet 26 (which may include a film layer 30, a layer of nonwoven fabric 31, or both of them) and the rear external abdominal coupling panel 380 are fed into the gap between the rotating rollers of the device, and as a result of the teeth entering one of rollers with ridges and grooves on another roller in the rear inner abdominal tie panel 390, the back sheet 26 (which may include a film layer 30, a layer of nonwoven fabric 31, or both of them) and holes in the rear outer abdominal tie panel 380. 622 An example of a method for forming holes 622 is described in US Patent Application 11/249618 by O'Donnell.

The number of holes 622 per unit area of the web area with holes (i.e., the surface density of holes 622) can vary from about 1 hole / cm ² to 60 holes / cm ² . There may be at least 10 holes / cm ² or at least 20 holes / cm ² , depending on the purpose of the product. The surface density of the holes does not have to be the same throughout the web, on the contrary, the holes 622 can only be in some parts of the frame 100 (for example, in the front or back waist regions 36 and 38) and can be arranged in various shapes and structures, including lines, stripes, circles and more.

The presence in the product of abdominal clamping panels attached to the frame, as described above, is desirable from the point of view of comfort for the user and the appearance of the product. Unlike conventional waist tightening belts, each of the abdominal tightening panels covers only part of the waist region of the diaper 20, that is, is located on its inner or outer surface, and is not hidden between the layers of the frame 100. If the outer abdominal tightening panels are made of soft and attractive materials, such as the nonwovens described above, such a visible abdominal tie panel can give the product a finished look similar to the look of knitted underwear, and give the user a soft and soft feel. fort.

Description of the absorbent assembly

As shown in FIGS. 12, 13, 14, and 15, the absorbent assembly 200 includes an absorbent core 250 for absorbing and retaining body fluid. The absorbent core 250 has a laterally extended lateral edge 256 and opposite to it in the longitudinal direction and a laterally extended lateral edge 258. The absorbent core 250 also has a longitudinally extended left lateral edge 257a and opposite to it in the transverse direction and extended in longitudinally the right lateral edge 257b, while both lateral edges are elongated in the longitudinal direction between the front edge 256 and the rear edge 258. Absorbent The core 250 also has an inner surface 252 and an outer surface 254.

The absorbent assembly may be attached to the inner surface 102 of the chassis 100 over the entire surface of the absorbent assembly 200 or only in part. The absorbent assembly may be attached with its outer surface 204 to the chassis 100 in the form of an attachment structure, for example, in a crosswise attachment structure (in the form of a “+” sign).

Suitable configurations of the cruciform attachment structures are described in US Pat. No. 6,962,578 (La Von), issued November 8, 2005.

In alternative embodiments, the absorbent assembly 200 may be attached to the inner surface 102 of the chassis 100 according to the attachment structure 210 'of a convex shape, for example in the form of an oval or an egg. The attachment structure 210 'can be continuous, that is, all its parts can touch each other or be connected to each other in the form of an uninterrupted sequence, or, in other embodiments, the attachment structure can contain intermittent sections, that is, not be continuous, but at the same time these sections can still be located in the form of a structure having some form, for example, the shape of an oval. Thus, for example, a discontinuous convex shape 210 ′ may include a longitudinally extended portion located along the longitudinal axis 42, and right and left portions separate from it (in the transverse direction) located along or adjacent to the transverse axis 44, and data The sections separated in the transverse direction can have different lengths in the longitudinal direction, as a result of which an oval-shaped attachment structure is formed. In one of the embodiments depicted in Fig. 29, the oval-shaped attachment structure 210 comprises five transverse adhesive strips 624-628, which are used to attach the absorbent assembly 200 to the inner surface 102 of the chassis 100. The central strip 626 may be located on the longitudinal axis 42 and, as shown, may have the greatest extent in the longitudinal direction. The adhesive strips 624 and 628 that are farthest from the longitudinal axis have the smallest length in the longitudinal direction, and the intermediate strips 625 and 627 located between the far strips 624 and 628 and the central strip 626 have a longitudinal extent, the average between the length of the central strip 626 and far lanes 624 and 628.

Parts of the chassis 100 that lie outside such a convex or oval-shaped attachment structure 210 are not attached to the absorbent assembly 200, are not restrained by it, and are therefore tensile. In embodiments in which the absorbent assembly 200 is attached to the back sheet 26 in a convex-shaped attachment structure 210, the back sheet 26 essentially loses its tensile ability in the attachment area. A portion of the back sheet 26 located outside the convex-shaped attachment structure 210 may remain extensible. Therefore, it may make sense to activate the back sheet 26 in a structure complementary to the attachment structure (for example, in a concave structure 675, complementary to the convex or oval attachment structure 210).

Within one form or another of the attachment structure (for example, a cruciform, convex, or oval attachment structure 210), the absorbent assembly 200 can be attached to the chassis 100 continuously or intermittently, as shown in FIGS. 29 and 30. For example, over the entire area of the cruciform an attachment structure 210, a thin film of an adhesive (not shown) can be applied to continuously attach the absorbent assembly 200 to the chassis 100. In alternative embodiments, the adhesive can be applied intermittently at the boundary of the structure s attachment 210 "and a convex shape within its boundaries, for example in the form of dots, bars (e.g., bars 624-628), beads, spirals and other figures, and with its help the absorbent assembly 200 may be adhered to the frame 100.

Attachment structures of one form or another (for example, attachment structures 210 of a cruciform, convex, or oval shape) may be symmetrically or asymmetrically relative to the longitudinal axis 42, the transverse axis 44 of the chassis 100, or both of them. In addition, attachment structures of one form or another (for example, attachment structures 210 of a cruciform, convex, or oval shape) may be symmetrically or asymmetrically relative to one of the side edges 237a and 237b, or both of them, and the front and / or rear edges 236 and 238 of the absorbent assembly 200. Other suitable configurations of the cruciform attachment structures 210 are described in US Pat. No. 6,962,578, issued November 8, 2005.

The absorbent core 250 may be located between the lower cover sheet located on the outer surface of the absorbent core 250 and the upper cover sheet located on the inner surface of the absorbent core 250. Such upper and lower cover sheets may be bonded to each other so that there is a space between they will contain an absorbent core 250, and together they will form an absorbent assembly 200. For example, in the embodiment of the absorbent core 200 shown in FIG. 12, 13, 14, and 15, the upper cover sheet 24 and the lower cover sheet 25 are bonded to each other along or near the lateral edges 237 of the absorbent assembly 200, in longitudinally bonded adhesive areas 29. In alternative embodiments, the upper cover sheet 24 and the lower cover sheet 25 may be bonded to each other at locations other than the side edges 237, for example, at or near the edges 236 and 238 of the absorbent assembly 200, and in some embodiments as the lateral edges 237, and along the edges 236 and 238, or near them. Both the upper and lower cover sheets are vapor permeable, that is, “breathable”.

The top cover sheet 24 may be permeable, allowing liquid secretions to enter the absorbent core 250, which they absorb. The bottom cover sheet 25 may be waterproof. In some embodiments, the bottom sheet 25 may also be permeable.

In the embodiment of the absorbent core 200 shown in FIGS. 12, 13, 14 and 15, the upper cover sheet 24 and the lower cover sheet 25 are of the same size, namely, the upper cover sheet 24 and the lower cover sheet 25 are extended to the front edge 236 and a trailing edge 238, as well as up to the side edges 237 of the absorbent assembly 200. In alternative embodiments, the upper cover sheet 24 and the lower cover sheet 25 may vary in size.

In yet another embodiment, the upper cover sheet 24 may be larger than the lower cover sheet 24, and may be wrapped through the side edges 257 of the absorbent core 250 onto the inner surface of the absorbent core 250, where the upper cover sheet 24 and the lower cover sheet 25 can be bonded to each other with a friend. In still some embodiments, instead of separate upper cover sheet 24 and lower cover sheet 25, a single cover sheet wrapped around an absorbent core 250, fastened to itself and containing an absorbent core 250 inside can be used.

The absorbent core 250 includes a storage component 272, which serves to absorb and retain body fluid. Suitable known materials for the manufacture of the storage component include cellulose fibers in the form of chopped wood pulp, known as felt, natural or synthetic fibrous materials and superabsorbent polymers in the form of one polymer or a combination of different polymers, usually laid in layers or sheets, and others.

In addition to one or more storage components, the absorbent core may include a capture component. The exciting component is designed to capture the body’s liquid secretions and transfer them to one or more storage components. For the manufacture of an exciting component, any porous material can be used that will absorb the body’s liquid secretions, distribute them and transfer them to one or more storage components. Examples of such exciting materials are described in detail in US patent 4950264 (author Osborn), issued August 21, 1990.

FIG. 15 shows such an absorbent core component 290 lying on top of an absorbent core storage component 272. Between the absorbent core storage component 272 and the absorbent core capture component 290, there may be a separating sheet 292, for example of fabric or non-woven material, providing additional protection against the gel formed by the superabsorbent polymer, which may be part of the absorbent core storage component, on the skin of the user. .

In some embodiments, the storage component of the absorbent core may include discrete amounts of absorbent material immobilized in pockets formed by a layer of thermoplastic material, such as hot-melt adhesive material, which intermittently contacts and adheres to the base sheet, diverging from it at the locations of the pockets. Components of an absorbent core having such a structure and suitable for storing body fluid are described in US Patent Publications 2004/0162536 of August 19, 2004 and 2004/0167486 of August 26, 2004, as well as in US Patent Applications 60/936102 (by Hundorf ) dated June 18, 2007; 60/936109 (author Hundorf) dated June 18, 2007; 60/936149 (author Hundorf) dated June 18, 2007; 60/936036 (author Hundorf) dated June 18, 2007; 60/936068 (author Hundorf) dated June 18, 2007; 60/936150 (author Hundorf) dated June 18, 2007; 60/936085 (author of Ashton) dated June 18, 2007; 60/936084 (author Ashton) dated June 18, 2007 and 60/936146 (author Ashton) dated June 18, 2007

An example of an absorbent core storage component 272 having such a structure is shown in FIG. 16. In this storage component 272 of the absorbent core, superabsorbent polymer particles 270 are contained within pockets 280 formed by a layer 275 of thermoplastic material. The thermoplastic material layer 275 intermittently touches the base sheet 274, adhering to it along the attachment regions 282. Outside the attachment regions 282, the layer 275 extends from the base sheet 274, forming pockets 280. The layer 275 can be made of a sheet formed by fibers of thermoplastic material through which body fluids can pass for subsequent absorption by particles 279 of a superabsorbent polymer.

On Fig shows a separate cover sheet 276 covering the layer 275 of thermoplastic material. In other embodiments, a separate sheet 276 covering a layer of thermoplastic material may not be present.

In another embodiment of FIG. 17, two storage components of the absorbent core 272 can be stacked such that the pockets 280 of one storage component 272 of the absorbent core extend into recesses in the attachment regions 282 of the second absorbent core component 272, and corresponding single warp sheets 274 are opposite each other on far sides. In such an absorbent core 250, the single base sheets 274 opposite each other on the far sides can serve respectively as the upper cover sheet 24 and the lower cover sheet 25.

Explanation of References and Scope of the Claims

All documents referenced in the present description, including references to other patents and applications, are cited in their entirety, unless it is expressly agreed that they are cited in part or with restrictions. Citation of any document does not mean recognition that the cited document must be included in the prior art with respect to the invention set forth in this application, or that the cited invention alone, or in combination with another document or other documents, explains, proposes or describes the present invention. In addition, if any meaning or definition of a concept in this document does not coincide with the meaning or definition of a given concept in a referenced document, one should be guided by the meaning or definition of a given concept contained in this document.

Although specific embodiments of the present invention are illustrated and described herein, one skilled in the art will appreciate that other changes and modifications to the product are possible within the scope of the idea and scope of the present invention. For this purpose, it was intended in the appended claims to represent all possible similar changes and modifications within the scope of the present invention.

Claims (20)

1. A disposable absorbent article, comprising: an absorbent assembly comprising an absorbent core; a frame having a longitudinal axis, a transverse axis, a front waist region having a front waist edge, a back waist region having a rear waist edge, a crotch region located between the waist regions, laterally opposite each other in the transverse direction, extended between the front waist edge and the rear waist edge, the outer surface and the inner surface to which the absorbent assembly is attached, the frame comprising a waterproof back sheet and opposite each other in transverse direction of the side valves, and each of the side valves has a longitudinally elongated first elastic collecting element attached along its proximal edge or near it; however, the frame also contains a second elastic collecting element attached to the side edge of the frame or next to it, and the second collecting element is located between the zone of attachment of the side barrier and the side edge; moreover, the frame contains the first activated structure in the front waist region and / or the back waist region, and while the crotch region of the frame is not activated or contains a second activated structure, different from the first activated structure; wherein the front waist region and the back waist region are fastened to each other along or near respective lateral edges, thereby forming an opening for the waist and two opposite each other in the transverse direction of the leg opening; and at least one abdominal clamping panel attached to the inner surface or outer surface of the frame in the front waist region or rear waist region and having a circumferentially extended longitudinal edge located on or near the corresponding waist edge and opposite longitudinally proximate longitudinally proximal edge, wherein said at least one abdominal clamping panel provides circumferentially reduced force around the waist opening when the frame is stretched around the circumference. 2. The disposable absorbent product according to claim 1, characterized in that said at least one abdominal tie panel includes an elastic material. 3. The disposable absorbent product according to claim 1, characterized in that said at least one abdominal clamp panel includes a skin contact layer and an elastic layer laminated to the skin contact layer. 4. The disposable absorbent product according to claim 1, characterized in that said at least one abdominal tie panel comprises a three-layer laminate comprising an inner layer, an outer cover layer and an elastic layer located between the inner layer and the outer cover layer. 5. The disposable absorbent product according to claim 1, characterized in that said at least one abdominal tie panel includes transverse lines opposite each other, indicating tear points printed on the outside of the abdominal tie panel and extended from the far edge of the abdominal clamp panel to the proximal edge of the abdominal clamp panel. 6. The disposable absorbent product according to claim 1, characterized in that it further comprises transverse lines of easy tearing opposite each other, formed in said at least one abdominal coupling panel and frame and extending from the far edge of the abdominal coupling panel to the proximal edge of the abdominal clamping panel, so that when tearing along the lines of easy tear, the absorbent article is released along the waist and legs from the user's body. 7. The disposable absorbent product according to claim 1, characterized in that said at least one absorbent assembly is attached to the frame according to the shape of the attachment structure. 8. The disposable absorbent product according to claim 7, characterized in that at least a portion of the frame located outside the shaped attachment structure is tensile in the transverse direction. 9. The disposable absorbent product according to claim 1, characterized in that at least a portion of the frame in the front waist region or the back waist region is stretchable in the transverse direction. 10. The disposable absorbent product according to claim 1, characterized in that said at least one abdominal tie panel comprises an extensible non-woven fabric. 11. The disposable absorbent product of claim 10, wherein the non-woven fabric is elastically extensible. 12. The disposable absorbent product according to claim 1, characterized in that said at least one abdominal clamp panel is located on the inner surface of the frame and overlaps with a part of the absorbent assembly, and said at least one abdominal clamp panel does not remain attached to the absorbent assembly in part of the length in the longitudinal direction of the specified at least one abdominal clamp panel in the transverse central part of the frame located between opposite to each other uga transverse side flaps to form a belt cover panel and tensioning the abdominal belt rack, forming a pocket between said at least one tensioning the abdominal panel and the absorbent assembly and / or frame. 13. The disposable absorbent product according to claim 1, characterized in that said at least one abdominal clamp panel comprises openings extending from the inner surface of the disposable product to the outer surface of the disposable product in the front and / or back waist region. 14. The disposable absorbent product according to claim 1, characterized in that the front waist region and the rear waist region are not permanently attached to each other. 15. The disposable absorbent product according to claim 1, characterized in that said at least one abdominal tie panel is attached to the absorbent assembly. 16. A disposable diaper comprising: an absorbent assembly comprising an absorbent core; a frame having a longitudinal axis, a transverse axis, a front waist region having a front waist edge, a back waist region having a rear waist edge, a crotch region located between waist regions, laterally opposite each other in the transverse direction, extended between the front waist edge and the rear waist edge, the outer surface and the inner surface to which the absorbent assembly is attached, the frame comprising a waterproof back sheet and opposite each other in transverse direction of the side valves, and each of the side valves has a longitudinally elongated first elastic collecting element attached along its proximal edge or near it; however, the frame also contains a second elastic collecting element attached to the side edge of the frame or next to it, and the second collecting element is located between the zone of attachment of the side barrier and the side edge; wherein the front waist region and the back waist region are bonded to each other along or near respective lateral edges, thereby forming an opening for the waist and two opposite to each other in the transverse direction of the opening for the legs; and at least one abdominal tie panel attached to the outer surface both in the front waist region and in the back waist region, and having circumferentially extended longitudinally distal edges adjacent to the corresponding waist edge; however, the inner surface of the frame has wrinkles located in the waist region or near the waist region and extended in the longitudinal direction to the transverse axis. 17. The disposable diaper according to clause 16, characterized in that at least one of the abdominal tie panels is extended in the transverse direction between the side edges of the frame. 18. The disposable diaper according to claim 16, wherein the front waist region and the rear waist region are not permanently attached to each other. 19. A disposable diaper comprising: an absorbent assembly comprising an absorbent core; a frame having a longitudinal axis, a transverse axis, a front waist region having a front waist edge, a back waist region having a rear waist edge, a crotch region located between the waist regions, laterally opposite each other in the transverse direction, extended between the front waist edge and a rear waist edge, an outer surface and an inner surface to which the absorbent assembly is attached according to a shaped attachment structure, wherein the frame comprises a waterproof rear l ist and lateral flaps opposite each other in the transverse direction, and each of the lateral flaps has a longitudinally elongated first elastic collecting element attached along or adjacent to its proximal edge; however, the frame also contains a second elastic collecting element attached to the side edge of the frame or next to it, and the second collecting element is located between the zone of attachment of the side barrier and the side edge; the frame contains an activated structure in the front waist region and / or the back waist region, and the activated structure is complementary in shape to the shape of the attachment structure, while the front waist region and the back waist region are bonded to each other at or near respective lateral edges, forming thus, an opening for the waist and two opposite each other in the transverse direction of the opening for the legs; and at least one abdominal clamp panel attached to the outer surface and in the front waist region and in the back waist region, and at least one abdominal clamp panel attached to the inner surface and in the front waist region and in the back the waist region, with each abdominal clamping panel has a circumferentially extended longitudinally distal edge located adjacent to the corresponding waist edge; however, the frame further comprises holes in at least one of the waist regions, and these holes are extended from the inner surface of the inner abdominal coupling panel through the back sheet to the outer surface of the outer abdominal coupling panel. 20. The disposable diaper according to claim 19, characterized in that the front waist region and the rear waist region are not permanently attached to each other.

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