RU2588482C1 - Method and device for making adjustable disposable undergarment heating type by means of laser cutting - Google Patents

Abstract

FIELD: personal hygiene items.

SUBSTANCE: method includes steps of providing a moving belt and passing through section of attachment to determination of master part moving belt and driven part moving belt in point under fastener assembly. Moving belt then passes through section of laser cutting for cutting belt with preservation of driving and driven parts interconnected by means of fastener assembly without damaging fastener assembly.

EFFECT: disclosed is a method and apparatus for making pre-fastened disposable absorbent adjustable undergarment of heating type comprising a completely or partially separate front wearable section.

9 cl, 5 dwg

Description

BACKGROUND OF THE INVENTION

Disposable swimming-type underwear for absorbing human secretions can be similar in size and shape to ordinary fabric underwear, which includes washing and reusable use. Disposable absorbent underwear is intended to be worn by people, including infants, young children or adults, and provides for one-time or temporary use, and it is understood that after the first use it will be discarded, instead of being washed or dry-cleaned for reuse. Some examples of disposable underwear include baby diapers, sports swimming trunks, underwear for adults with incontinence, women's swimming trunks, etc.

Some of the melting-type disposable absorbent underwear items available today are reminiscent of ordinary fabric underwear in that they have a hole for the waist and two holes for the legs. Such disposable swimwear-type absorbent underwear can be worn and fastened around the user's torso in the same way as ordinary fabric underwear. Another disposable swim-type absorbent underwear has an open or flat configuration and is designed to fit to the user's torso, and then one or more locking loops or fasteners are used to secure the underwear around the user's torso. This design is suitable for bedridden users who cannot move, or for children who need help to lock their underwear in place. Another adjustable absorbent swimming-type underwear comprises fasteners for opening and closing the waist opening after placing the underwear around the user's torso. Adjustable underwear of this type has the advantage that the user does not have to remove outerwear to check the condition of the underwear or to remove the underwear from the body.

One example of such an adjustable disposable absorbent swimwear-type underwear comprises two tear lines that the user must tear to allow adjusting the fit of the underwear. The tear lines usually extend from the waist hole to one of the leg openings and are intended to be torn either before the underwear is placed around the user's torso, or when the underwear is already placed around the user's torso. Then, a pair of fastener assemblies is used to reattach the underwear to fit the user's torso tightly.

As it turned out, most of each of the lines of the gap is poorly visible, and some users do not notice them and therefore do not know what they are. In addition, each rupture line can be ergonomically difficult to tear to older people, some of whom may suffer from arthritis. In addition, when something needs to be torn, this often serves as an indicator for users that after a break, the product will be damaged or of poor quality.

Requires an adjustable, disposable, swim-type absorbent underwear that contains a fully detached front section, as well as more visible and more easily accessible closure mechanisms. However, as a rule, consumer goods of the types mentioned above are produced on an ongoing basis on a large scale. Typically, various initial articles or components are formed on a continuous stream of material or built into it, which often includes a tape of material that moves in the processing direction along the line and along it. In this case, during the process it is important to maintain a continuous flow of material or tape to avoid costly downtime. In general, the tape is pushed or stretched along the line so that the tape is stretched. Accordingly, the formation of a fully separated section, especially in the transverse direction, can increase the risk of rupture. Therefore, it is desirable to maintain resistance to stretching the flow of materials or tape when it undergoes a processing process.

Therefore, there is a need to provide a method and apparatus for the manufacture of a disposable absorbent underwear of a swimming type that comprises a fully or partially separated front section, without creating problems with the integrity of the flow of material or tape during the process.

SUMMARY OF THE INVENTION

In general, a method and apparatus for manufacturing a pre-fixed, adjustable, disposable, absorbent, swimwear-type underwear comprising a fully or partially separated front body section is disclosed. The method includes the steps of providing the moving belt and passing it through the fastener attachment section to determine the leading part of the moving belt and the driven part of the moving belt at a point under the fastener assembly. Finally, the moving tape then passes through the laser cutting section to cut the tape while keeping the leading part and the driven part interconnected by the fastener assembly. Preferably, the fastener assembly is not damaged by cutting the moving belt with a laser. However, in other embodiments, the fastener assembly is weakened by the laser when cutting the tape. The weakened fastener assembly provides a more flexible fastener assembly which is easier for the user to handle.

In one embodiment, cutting the moving belt includes the complete separation of the leading part of the moving belt and the driven part of the moving belt. This can be done by a single cut along the tape essentially in the transverse direction of the treatment.

In another embodiment, cutting the moving belt includes creating a tear line between the leading portion of the moving belt and the driven portion of the moving belt. This can be a series of interrupted perforated holes or ribbed tape to provide a weakened area.

Below these signs will be described in more detail. In addition, it should be understood that both the foregoing general description and the following detailed description are illustrative and are intended to provide a further explanation of the claimed invention.

SHORT DESCRIPTION

In FIG. 1 shows a method of manufacturing a pre-fixed, adjustable, disposable, absorbent, swimwear-type underwear comprising a fully detached front body section.

In FIG. 2 shows a device for manufacturing a pre-fixed, adjustable, disposable, absorbent, swimwear-type underwear comprising a fully detached front body section.

In FIG. 3 is a front perspective view of one example of an undergarment, the underwear being shown in a pre-fastened configuration of a swimming type.

In FIG. 4 is a front perspective view of one example of an undergarment, the undergarment being shown in an open configuration of a swimming type.

In FIG. 5 is a top view of the underwear of FIG. 1, wherein the underwear item is shown in an unfastened, expanded, weakened configuration.

DETAILED DESCRIPTION

In the description of the various embodiments, reference will be made to the figures. It should be noted that the embodiments depicted in the figures and described herein are nothing more than illustrative examples. Various embodiments are suitable for use with disposable absorbent underwear such as re-fastening underwear for adult incontinence, pre-fixed disposable diapers, re-fastening disposable sports or swimming trunks, re-closing disposable underwear for enuresis sufferers and the like. . For illustrative purposes, various embodiments will be described in conjunction with re-fastening underwear for incontinence or enuresis.

In the context of this description, each term or phrase used below will encompass the following meaning or meanings.

The term “wearable side” should not be understood as meaning “a side in contact with the user's body”; it simply means the side that will be facing the wearer's body when the wearer is applying the laundry, regardless of whether the user is wearing absorbent laundry, and whether or not there are intermediate layers between the component and the user's body. Similarly, the term “laundry side” should not be understood as meaning “the side in contact with the user's laundry”, it simply means the side that is turned away from the user's body when the user applies the laundry, and accordingly refers to any external garment that can be on the user, regardless of whether the user has put on absorbent underwear, regardless of whether such an external garment is dressed, and regardless of whether there may be intermediate layers between component and any external garment.

The term "direction of processing" means the direction of flow when various parts and belts are advanced along the production line and processed. It should be understood that if various individual parts or tapes move in the processing direction, this does not mean that each of them cannot move in its processing direction, which is not necessarily parallel to the others or oriented in the same direction with them. For example, one tape can move in the first processing direction, which is generally perpendicular to the movement of the other tape in the second processing direction.

The term "transverse direction" means a direction generally perpendicular to the direction of processing.

The term “downstream” means that one object is located closer to the discharge point or point of delivery of the finished product of the mechanism and / or process with respect to another object. On the contrary, the term “closer in the direction of travel” means that the object is located closer to the loading point of the mechanism or process in relation to another object. For example, the discharge point is further downstream than the loading point, and vice versa, the loading point is closer in the direction of movement than the discharge point.

The term "disposable absorbent underwear" in the context of this document means a product that is intended to be worn by people, including infants, young children or adults, provides for one-time or temporary use and implies that after the first use it will be discarded, instead of being washed or dry clean for reuse.

The term “attached” refers to joining, gluing, bonding, bonding, etc. two elements. Two elements will be considered attached to each other when they are attached directly to each other or indirectly to each other, as in the case when each is directly connected to intermediate elements.

The term "disposable" refers to products that provide that they will be discarded after limited use, and will not be washed or otherwise restored for reuse.

The term "elastomeric" refers to a material or composite material that can be extended by at least 50% of its length in a weakened state and which, after the termination of an external force, will restore at least 20% of its elongation. In general, it is preferable that the elastomeric material or composite material can be extended by at least 100%, more preferably at least 200% of its length in a weakened state, and after the cessation of an external force, to restore at least 50% of its elongation.

The term “weakening” means “cause a loss of strength”, so that a zone that is weakened is not as strong as neighboring zones. For example, and without limitation, the zone that has undergone weakening may have less tensile or tensile strength compared to adjacent zones of the tape, so that the tape is more likely to burst or collapse along the weakening zone, rather than along adjacent zones. Thanks to this, the manufacturer can control the area of the tape that will be torn, regardless of whether such tearing is done by the end user, or whether it occurs at a later stage in the manufacturing or production process.

The term "tear line" refers to any area or zone of attenuated material, preferably having a length, and which may or may not have a certain width, and may include linear and non-linear contours, such as curved attenuation contours, or other shapes, such like circles, rectangles, etc. The tear line may include a perforated hole or other series of cuts, thinning, or tearing, or separation of the material, or a strip of other material, connecting adjacent parts of the material, which is easier to tear or break than adjacent parts, which will allow the user or manufacturer to separate adjacent parts along the break line.

The term “conversion” refers to a change in the modulus of a material. For example, and without limitation, the zone that has undergone conversion may contain a more brittle zone than the adjacent zones of the tape, so that the tape is more likely to burst or collapse along the brittle zone, and not along adjacent zones. Thanks to this, the manufacturer can control the area of the tape that will be torn, regardless of whether such tearing is done by the end user, or whether it occurs at a later stage in the manufacturing or production process.

The term "transformed zone" refers to any region or zone of the transformed material, preferably having a length, and which may or may not have a certain width, and may include linear and non-linear contours, such as curved contours of the transformed zones, or other shapes, such as circles, rectangles, etc. The transformed zone may include extrusion bonding or other series of bondings, more brittle zones or a strip of other material connecting adjacent parts of the material that breaks or breaks more easily than adjacent parts, allowing the user or manufacturer to separate adjacent parts along the transformed zone.

The terms “longitudinal” and “transverse” are used in the traditional sense, as indicated by the longitudinal and transverse axes shown in the figures. The longitudinal axis lies in the plane of the product and is generally parallel to the vertical plane, which divides the body of the standing user into the left and right halves when the product is worn. The transverse axis lies in the plane of the product as a whole perpendicular to the longitudinal axis.

These terms may be defined in additional terms in other parts of the description.

A method and apparatus for manufacturing a pre-fixed, adjustable, disposable, absorbent swimwear-type underwear comprising a fully or partially separated front body section is disclosed. The method includes the steps of providing the moving belt and passing through the fastener attachment portion to determine the leading portion of the moving belt and the driven portion of the moving belt at a point below the fastener assembly. Finally, the moving tape then passes through the laser cutting section to cut the tape while keeping the leading part and the driven part interconnected by the fastener assembly.

Referring to FIG. 1 and 2, a method and apparatus for manufacturing a pre-fixed, adjustable, disposable, absorbent, swimwear-type underwear are shown. The moving belt 12 is shown moving in the processing direction along the processing line. The moving belt 12 can be used as a front body section, a rear body section, or both sections in disposable absorbent underwear.

The moving belt 12 may be formed from a single piece of material or may be formed as a layered material consisting of two or more layers. Layers of the layered material may be made of the same material or of different materials. In one embodiment, the laminate is formed of a first layer and a second layer. Between the first and second layers are two or more elastic bands. Desirably, from two to about one hundred elastic bands can be used in the moving belt 12 depending on the total size of each section. Elastic bands may be formed from lycra or the like. Lycra is a trademark of INVISTA (Wichita, Koch Industries Corporation). The diameter and / or cross-sectional configuration of the elastic bands, the decitex (weight in grams per 10,000 meters) of the elastic bands, and the tensile force exerted on the elastic bands can vary to meet the requirements of each particular product. The exact amount of elastic bands used should be sufficient to provide a tight fit to the user's torso with disposable absorbent underwear 10.

Elastic bands may be coated with adhesive. Coating each of the elastic strips with adhesive, instead of filling them with most of the inner surface of at least one of the first and second layers, it is possible to obtain softer moving belts 12 respectively. Users of disposable absorbent underwear prefer the product to be softer on touch, because then it is more like underwear.

In other embodiments, the elastomeric nonwoven fabric comprises an elastomeric film that extends between two nonwoven face layers. US Patent No. 7803244 to Siqueira et al, which is incorporated herein by reference, discloses specific examples of elastomeric nonwoven composite materials suitable for use in the adjustable underwear described herein.

It should be noted that the moving belt 12 may be formed of breathable or airtight material. Preferably, the moving belt 12 is formed from a breathable material or a material which is breathable by processing or processing. Spunbond nonwoven fabric and carded bonded fabric are two breathable materials that make up a good moving tape 12 for disposable absorbent underwear. Carded bonded fabric is manufactured and sold by various suppliers. Other materials that can be used to form the moving belt 12 include woven and non-woven materials made from natural or synthetic fibers; polyolefins, such as polypropylene or polyethylene; thermoplastic films; as well as other materials known to specialists in this field. Metallocene polypropylene is very suitable because it is soft to the touch and can be easily fastened with ultrasound.

The moving belt 12 first passes through the fastener attachment portion 30 at the first point A1. The fastener attachment portion 30 attaches the fastener assembly 18 above the area that defines the driving portion 14 of the moving belt 12 and the driven portion 16 of the moving belt 12 with the fastener assembly 18. The fastener assembly 18 maintains the integrity of the tape as it passes through the remainder of the process.

Further downstream of the fastener attachment portion 30, the moving belt 12 is guided through the laser cutting portion 40. In an exemplary embodiment, the laser cutting portion 40 completely separates the driving portion 14 of the moving belt 12 and the driven portion 16 of the moving belt 12 while keeping the driving portion 14 and the driven portion 16 connected to each other by the fastener assembly 18. In another embodiment, the laser cutting portion 40 completely separates the driving portion 14 of the moving belt 12 and the driven portion 16 of the moving belt 12 while keeping the driving portion 14 and the driven portion 16 connected by the fastener assembly 18. Preferably, the clasp assembly 18 remains intact with minimal wear or without damage due to laser cutting of only non-woven tape.

In another embodiment, the laser cutting portion 40 cuts the moving belt 12 to form a tear line between the driving portion 14 of the moving belt 12 and the driven portion 16 of the moving belt 12 at the second point A2. This tear line may include a series of interrupted perforated holes. Alternatively, the tear line may comprise ribbing the tape or cutting the material deeper without breaking the material to provide a weakened area. In these embodiments, the tape is not completely separated, but provides a weakened area that the user of the disposable absorbent underwear can easily tear to re-adjust the laundry for a better fit.

Depending on the speed of the tape and the type of material being cut, the speed of laser cutting, the intensity of the laser radiation, the field of view, the focal length and the wavelength of the laser can be optimized by a person skilled in the art. The laser cutting section 40 can be adjusted for specific parameters to partially or completely separate the moving tape, while leaving the fastener assembly 18 intact and without damaging the fastener assembly 18. This allows the tape to be separated using the fastener system already in place 18, which significantly reduces the possibility of process stops / tape breaks. Cutting one or two tapes using a standard flexible cutting unit will be very difficult at high speeds, given the wear of the knife. Laser technology offers the ability to accurately maintain its wavelength and radiation intensity.

In other embodiments, the fastener assembly 18 is attenuated by the laser while cutting the tape with a laser. For cutting the tape, this can be done by controlling the cutting of the laser, the intensity of the laser radiation, the field of view, the focal length and the wavelength of the laser, however, to provide a weakened zone, only riving is performed. In other words, the laser can cut the fastener assembly 18 in depth without tearing the fastener assembly 18. The weakened fastener assembly 18 provides a more flexible fastener assembly 18, which will be easier for the user to control.

Section stability is also an important aspect for maintaining the focal length of the laser. The stability of the section can be ensured by winding the material on a drum, a vacuum conveyor from material not cut by the laser, or by means of rollers located at short intervals.

Optionally, closer to the direction of the fastener attachment portion 30, the moving belt 12 first passes through the tape conversion portion 20. The tape conversion section 20 forms a converted zone in the moving tape 12 for defining a driving portion 14 of the tape 12 and a driven part 16 of the moving tape 12 connected in the converted zone, as shown, for example, in FIG. 2. In a preferred embodiment, the conversion section 20 of the moving belt 12 forms in the moving belt 12 a transversely transformed zone, which is preferably linear. The transformed zone may extend along the entire transverse direction of the width of the moving belt 12 or only in part. In some embodiments, the transformed zone may, if necessary, be narrowed relative to the longitudinal axis 111. In addition, the transformed zone may also be curved. The formation of the converted zone on the moving belt 12 allows easier cutting of the moving belt 12 with a laser.

In one desirable embodiment, the tape conversion section 20 is in the form of a compression bonding unit or a flexible cutting unit to fasten the moving tape 12 by pressing at a low temperature, while changing the blocks, increasing brittleness and maintaining the breaking stress of the moving tape 12. In other alternative embodiments the tape conversion section 20 may include a device for treating the moving tape 12 with heat, thermal energy or ultrasonic energy to hold together a rolling tape 12 at specific points or transformed zones. In other preferred embodiments, the tape conversion section 20 may comprise a reagent dispenser with which the tape is treated with various reagents, including, for example, water, to change the block of the moving tape 12 at certain points. Of course, it should be understood that the tape conversion portion 20 may also be composed of combinations of one or more of the above devices.

Various methods and devices for manufacturing absorbent underwear and for attaching fasteners to it are disclosed in US Pat. No. 6730188, Method and Device for Collecting Re-fastening Absorbent Underwear, US Pat. No. 6,743,321, “Method and Device for Collecting Re-Fastening Absorbent Underwear” US Pat. No. 6,666,626 for a Method and Device for Collecting a Reclosable Absorbent Underwear; US Patent No. 6,682,626 for a Method and a Device for Collecting Reclosable Absorbent Underwear linen ", US patent No. 6712922" Component tape ", US patent No. 6730188" Method for collecting absorbent personal care products, US patent No. 6783487 "Personal hygiene products of the fusible type, and methods for the manufacture and use of such personal hygiene products", US patent No. 6454888 "Methods of resizing personal hygiene products of a swimming type after completion of the manufacturing process", the disclosures of which are fully incorporated into this application by reference.

In one embodiment, shown in FIG. 1, the moving tape 12 is used as the front body section 112 and is fastened to the tape 28 of the rear body section at the side seams 118, 120, where the tape 28 of the rear body section is superimposed over the moving belt 12 by folding the inguinal portion 29 connecting or connecting the moving tape 12 and tape 28 of the rear section at the third point A3.

Referring to FIG. 3-5, an adjustable disposable absorbent underwear 100 of a swimming type is shown having a longitudinal axis 111, which is made using the method described herein. An adjustable disposable absorbent underwear 100 of a swimming type is adapted to absorb liquid, semi-liquid and / or solid wastes of human life. Adjustable disposable absorbent underwear 100 of a swimming type is capable of absorbing and / or retaining one or more physiological wastes of waste such as urine, sweat, bowel movements, feces, regulation, menstrual flow, and other liquid and / or solid wastes.

An adjustable disposable absorbent underwear 100 of the swimming type comprises a front body section 112, a rear body section 114 and an absorbent assembly 116 fixed to the front and rear body sections 112 and 114, respectively. The front and rear body sections 112 and 114, respectively, are interconnected by two seams 118 and 120, forming a hole 122 for the waist and two holes 124 and 126 for the legs.

The front body section 112 comprises a waist edge 128, an inguinal edge 130, and two side edges 132 and 134. In a three-component structure where the absorbent assembly 116 is secured between the front body section 112 and the rear body section 114, the inguinal edge 130 is clearly defined. In absorbent underwear of a different design, the inguinal edge 130 may be an imaginary line laterally drawn between the two leg openings 124, 126 at a point that is considered the end of the front section 112. The exact size and configuration of the front section 112 may vary to suit specific needs. user. The front body section 112 comprises a first side segment 136, a middle region 138 and a second side segment 140. The first side segment 136 of the front body section 112 is completely separated from the middle segment 138 of the front body section 112, and the second side segment 140 of the front body section 112 is completely separated from the middle segment 138 of the front body section 112, as a result of which, in the front body section 112, a first completely separated region, or gap, 142 and a second completely separated region 144 is created. segment 136 is aligned along the side edge 132 with its leading edge forming a seam 120, and the second side segment 140 is aligned with its leading edge forming a seam 118. The middle segment 138 comprises a first edge 154 and a second edge 154 and is located between the first and second side segments 136 and 140, respectively. The end edge 150 of the first side segment 136 is aligned with the first edge 152 of the middle segment 138, and the end edge 150 of the second side segment 140 is aligned with the second edge 154 of the middle segment 138. As shown, the middle segment 138 occupies a central position and is divided into two parts by the longitudinal axis 111 at the midpoint of the front body section 112.

The first and second completely separate regions 142 and 144 may be linear or non-linear in configuration. In FIG. 4-5, the first and second fully separated areas 142 and 144 are shown with a linear or straight configuration. The first and second completely separated areas 142 and 144 extend longitudinally from about the waist edge 128 down to about one of the leg openings 124 or 126. The first and second completely separated areas 142 and 144 can be aligned parallel to the longitudinal axis 111 or placed at an angle to it. For example, the first and second completely separated areas 142 and 144, if necessary, can taper relative to the longitudinal axis 111. In addition, completely separated areas 142 and 144 can also be curved.

Referring again to FIG. 3-5, each of the first and second completely separated regions 142 and 144 extends from approximately the waist edge 128 of the front body section 112 to one of the two leg openings 124 and 126. In other words, the first and second completely separated areas 142 and 144 extend from approximately the waist edge 128 of the front body section 112 to the approximately inguinal edge 130 of the front body section 112.

Many of the swim-type adjustable disposable absorbent underwear contains two tear lines to be torn so that the user can adjust the size of the swimming trunks. This type of adjustable disposable underwear containing tear lines requires some effort to tear the tear lines. The pre-fixed, adjustable, disposable swimwear-type absorbent underwear described herein contains the first and second completely separate areas 142 and 144, which do not require any effort to break, making it easier for older people, caregivers, or parents to care for their children.

Referring again to FIG. 4-5, each of the first and second completely separated areas 142 and 144 is shown aligned parallel to one of the two seams 118 and 120. This arrangement provides the front body section 112 with an aesthetically pleasing appearance.

Preferably, in a pre-fastened state, the first side segment 136 and the middle segment 138 of the front body section 112 do not overlap, and the second side segment 140 and the middle segment 138 of the front body section 112 do not overlap in the separated areas 142, 144. In one exemplary embodiment, the first gap may be formed in the first separated region 142 between the first side segment 136 and the middle segment 138 of the front body section 112 in a pre-fastened th state. In this embodiment, a second gap may be formed in the first separated region 142 between the second side segment 140 and the middle segment 138 of the front body section 112 in a pre-fastened state. In another exemplary embodiment, the end or outer edge 150 of the first side segment 136 abuts against the first edge 152 of the middle segment 138 of the front body section 112 in a pre-fastened state. In this embodiment, the end or outer edge 150 of the second side segment 140 abuts against the second edge 154 of the middle segment 138 of the front body section 112 in a pre-fixed state. In another embodiment, a gap may be formed between one side segment and the middle segment and the other side segment and the middle segment, so that they abut against each other. If a gap is formed between the side segments 136 and 140 and the middle segment 138, it is desirable that the gap is less than 10 mm.

Referring again to FIG. 4-5, the front body section 112 further includes two fastener assemblies 168 and 170. Each fastener assembly 168 and 170 comprises a first part 172 and a second part 174. The first part 172 of the fastener assembly 168 can be permanently fixed to the first side segment 136 of the front body section 112, and the first part 172 of the other fastener assembly 170 can be permanently fixed to the second side segment 140 of the front body section 112.

In the embodiment shown in FIG. 4-5, the first parts 172 of the fastener assemblies 168 and 170 can be securely attached using adhesive, heating, pressing, a combination of heating and pressing, ultrasonic bonding, chemical bonding, or other methods known to those skilled in the art.

Each of the second parts 174 of the fastener nodes 168 and 170 is shown extending over almost the entire length of the completely separated parts 142 and 144. This means that at least 50% of the distance between the waist edge 30 and the leg hole 124 is covered by the fastener node 168. Preferably, the first fastener assembly 168 and the second fastener assembly 170 extend at least 65% of the distance between the waist edge 30 and the leg opening 124. More preferably, the first fastener assembly 168 and the second fastener assembly 170 extend at least 75% of the distance between the waist edge 30 and the leg opening 124. Even more preferably, the first fastener assembly 168 and the second fastener assembly 170 extend at least 85% of the distance between the waist edge 30 and the leg hole 124. Even more preferably, the first fastener assembly 168 and the second fastener assembly 170 extend at least 95% of the distance between the waist edge 30 and the leg opening 124. The second parts 174 of the first fastener assembly 168 may bind the first completely separated region 142, and the second part 174 of the other fastener assembly 170 may bind the second fully separated region 144. Passing as a whole along the entire length of the fully separated parts 142 and 144 and connecting them, the assemblies 168, 170 fasteners cover the completely separated parts and provide an appearance that looks more like underwear. The second parts 174 of the nodes 168 and 170 of the fastener can be connected with the possibility of removal with the middle segment 138 of the front body section 112.

Alternatively, it should be apparent to those skilled in the art that the first part 172 of each of the fastener assemblies 168 and 170 can be permanently connected to the middle segment 138. In this embodiment, the second parts 174 of the fastener assemblies 168 and 170 can be removably connected to the side segments front body section 112. In an alternative embodiment, both the first part 172 and the second part 174 may be removably coupled. The fastener assembly 168 may be made of inextensible or elastomeric material.

Referring next to FIG. 4-5, each of the second parts 174 of the fastener assemblies 168 and 170 comprises an inner surface 180 that includes the fastener 182. The fastener 182 may be a mechanical fastener 182. In FIG. 9 and 10, a mechanical fastener 182 is shown as a plurality of thin and small hooks, such as VELCRO hooks. VELCRO is a trademark of Velcro USA Inc. (Manchester, New Hampshire). The hooks are designed so as to easily engage with the material and be removed from the material where the material has loose weaving, or the fibers forming the material allow connection with the hooks. The mating material is commonly referred to as the hook and loop fastener. The middle segment 138 of the front body section 112 may be made of such material. When the hooks engage with the middle segment 138, a reliable but detachable clasp is formed. The hooks can be easily removed from the loop material by pulling the edge of the fastener outward from the middle segment 138. Alternatively, as shown in FIG. 9 and 10, the fastening component 183, such as loop material or loose fibers, can be placed anywhere on the middle segment 138 to increase the effectiveness of the fastening component. Thus, Velcro is used because it is detachable and can be fastened and unfastened several times. In alternative embodiments, the implementation of the mechanical fastener 182, made of hooks, can be placed on the middle segment 138 of the front body section 112. In this embodiment, the fastening component 183, made of looped material or loosened fiber, will be placed on the nodes 168, 170 of the fastener. Both the mechanical fastener 182 and the fastening component 183 can be integral or attached separately.

Referring again to FIG. 3-5, it can be seen that in FIG. 3 depicts two fastener assemblies 168 and 170 securely attached to the middle segment 138 of the front body section 112. If a user of disposable absorbent underwear 100 or a carer wants to examine the underwear 100, he or she will open the two fastener assemblies 168 and 170 to the position shown in FIG. 4. Since the first and completely separated parts 142 and 144 are already torn, the middle segment 138 of the disposable absorbent underwear 100 can be easily moved outward from the user's body. The user can then inspect the absorbent assembly 116 to determine if it needs to be changed. If so, the disposable absorbent underwear 100 can be removed from the user's torso and replaced with other underwear. If the absorbent assembly 116 is still capable of receiving additional body excretions, the middle segment 138 moves back to the body of the user, and the two fastener assemblies 168 and 170 are reattached to the middle segment 138.

The horizontal distance to each of the first and second completely separated regions 142 and 144 and the corresponding first and second fastener nodes 168 and 170, measured with respect to the two side seams 118 and 120, may also vary. In FIG. 4-5, the distance “D” is shown, which represents the distance between each of the two seams 118 and 120 and the corresponding first and second fully separated regions 142 and 144, respectively. You can increase the distance “D” by moving the first and second completely separated areas 142 and 144, respectively, from the two seams 118 and 120. When you increase the distance “D”, you will notice that it is easier for the user of disposable absorbent underwear 100 to see and identify the first and second completely separated areas 142 and 144 when the user is looking down at the front body section 112. In some embodiments, the first fastener assembly 168 and the second fastener assembly 170 are located near the midpoint between the side seams 118 and 120 and a transverse midpoint 111 of the front section 112. It is desirable that the first fastener assembly 168 and the second fastener assembly 170 are located in a range of 30% to 70% of the distance between the side seams 118 and 120 and the transverse midpoint 111 of the front section 112. More preferably so that the first fastener assembly 168 and the second fastener assembly 170 are located in a range of 35% to 45% of the distance between the side seams 118 and 120 and the transverse midpoint 111 of the front body section 112. The manufacturer may vary the distance “D” depending on the size and shape of the particular disposable absorbent undergarment 100 to provide a fastening arrangement of the front of the product and not a side product. If the completely separated areas 142, 144 are not parallel to the side seams 118, 120, the midpoint of the completely separated areas 142, 144 in the longitudinal direction can be used to measure “D”.

Placing close to the midpoint between the side seam and the transverse midpoint 111 of the front body section 112 facilitates easy donning and removal when the user is limited in movement, as well as the location of the fastener at a point that the user is easier to notice.

Placing the fastener assemblies 168 and 170 on the front of the product optimizes the user's ability to fasten the product, while minimizing the risk that the laundry itself will be unfastened during use due to movement of the user's legs. The location of the fasteners can be determined both in an unstretched (unpacked) state and in a tightened state (as in use).

It should be understood that other embodiments, modifications, and equivalents of the embodiments of the absorbent article described herein that, after reading this description, may be proposed by those skilled in the art do not go beyond the scope and essence of this claims.

Claims (9)

1. A method of manufacturing a pre-fixed disposable linen, including:
a) providing a moving belt for use as a body section;
b) attaching the fastener assembly to the moving belt;
c) cutting the moving belt with a laser in a position under the fastener assembly defining the driving part of the moving belt and the driven part of the moving belt while keeping the driving part and driven part connected by the fastener assembly. 2. The method according to p. 1, characterized in that the cutting of the moving tape includes the complete separation of the leading part of the moving tape and the driven part of the moving tape. 3. The method according to p. 1, characterized in that the cutting of the moving tape includes one cut along the tape essentially in the transverse direction of processing. 4. The method according to p. 1, characterized in that the cutting of the moving tape includes creating a line of tear between the leading part of the moving tape and the driven part of the moving tape. 5. The method according to p. 1, characterized in that the cutting of a moving tape includes a series of interrupted perforated holes. 6. The method according to p. 1, characterized in that the cutting of a moving tape includes ribbing of the tape to provide a weakened zone. 7. The method according to p. 1, characterized in that the fastener assembly is not damaged by cutting the moving belt with a laser. 8. The method according to p. 1, characterized in that the fastener assembly is loosened by cutting the moving belt with a laser. 9. A device for the manufacture of pre-fixed adjustable disposable absorbent underwear of a swimming type using the method according to p. 1, containing:
a) a conveyor for securing a moving belt;
b) the attachment site of the fastener assembly for interconnecting the connected leading part of the moving belt and the driven part of the moving belt using the fastener assembly that extends above the tear line; and
c) a laser cutting section for cutting the moving tape to determine the leading part of the moving tape and the driven part of the moving tape while keeping the leading part and the driven part connected by a fastener assembly.

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