MXPA00003369A - Disposable training pant with improved disposal device having a one-piece disposal feature - Google Patents

Abstract

A disposable garment having an improved disposal device having a one-piece disposal feature so as to provide convenient disposal of the disposable garment. The disposable garment includes a chassis having a front portion, a rear portion, and a crotch portion positioned between the front portion and the rear portion. Seams join the front and rear portions together to form two leg openings and a waist opening. The improved disposal device may be joined to the outer layer of the disposable garment by a center portion thus providing a one-piece disposal device parallel to the transverse axis of the disposable garment or the one-piece disposal device may be attached to the outer layer without a center portion attached thereto.

Description

DISPOSABLE TRAINING SHOE WITH IMPROVED WASTE DEVICE THAT HAS A CHARACTERISTIC OF ONE PIECE FOR WASTE FIELD OF THE INVENTION The present invention relates to disposable garments having fixed sides, which are placed in position on the wearer by inserting the wearer's legs into the openings of the leg and sliding the disposable garment to the position around the wearer's lower torso. Examples of these disposable garments would include disposable undergarments for children (eg, crawling children) or adults, and disposable panties that can be used with catamenial devices such as tampons or sanitary napkins. The present invention relates more particularly to disposable absorbent articles such as training pants, incontinence garments (panties or jumpers) and the like having an improved disposal device that provides convenient disposal.

BACKGROUND OF THE INVENTION Babies and other incontinent individuals carry disposable absorbent articles to receive and contain urine and other body exudates. Absorbent articles having fixed sides, for example disposable training pants, have been popular for use in toilet training for children. An example of a disposable training pant is described in United States Patent No. 5,246,433 issued to Hasse et al. On September 21, 1993.

The use of adhesive systems for the disposal of waste to ensure a training shoe in the configuration for the disposal of waste is well known in the art. Although prior art adhesive disposal systems are quite effective in securing training pants in a waste disposal configuration, they have defects. One flaw is that these do not effectively seal the training shorts to contain the contents within the soiled training pants. Many of the adhesive waste disposal systems of the prior art do not effectively seal the leg openings to contain the contents within the soiled training pants once the training pants are in a rolled up configuration. As a solution to those waste disposal systems that have a member for the disposal of garment waste, U.S. Patent No. 5,575,784 issued to Ames-Ooten, and others on November 19, 1996, provides a pledge disposable that has a device for the disposal of two pieces that is placed to the transverse axis of the garment. In use, the two-piece disposal device is separated along its frangible section to form a two-piece member which is then used for the disposal of the waste and sealing the disposable garment after use. However, Ames-Ooten must be separated into two pieces to operate and is not oriented horizontally on the chassis, that is, it is not oriented to the transverse axis. It is therefore an object of the present invention to provide a disposable garment with a feature for disposing of a piece that will effectively contain the contents within the soiled training pants. A further object of the present is to orient a feature for scrapping a piece parallel to the transverse axis (i.e., horizontally) on the outer layer of the training pant garment to avoid undue stress and strain on the characteristic for the waste of a piece caused by the garment of the folded training pant.

BRIEF DESCRIPTION OF THE INVENTION Accordingly, the present invention provides a disposable garment having a transverse axis and a longitudinal axis. The disposable garment further comprises a chassis that has a front portion, a rear portion opposite said front portion, and a crotch portion positioned between the front portion and the rear portion. The chassis also comprises an outer layer and an inner layer. Seams joining said front portion to said back portion to form two leg openings and a waist opening. A scrap device joins the outer layer to allow the disposable garment to be secured in a configuration that provides convenient disposal of a disposable garment. The disposal device comprises a characteristic for the disposal of a piece oriented horizontally and parallel to said transverse axis. The feature for the disposal of a piece has a pair of mutually opposite ends used to hold the garment in a folded position in its removal. These opposite ends have fastening or securing means for securing the garment in its folded position before and during disposal. The waste characteristic of a part may be fixed to said outer layer by a central portion or it may preferably be attached to the outer layer without a central portion. In a preferred embodiment, the waste characteristic of a part is placed in a folded configuration before use, for example, in a fold of z. The waste characteristic of a piece may comprise material selected from the group consisting of polyethylene, polypropylene, elastics, nonwovens and combinations thereof. Preferably, each scrap feature of a piece may comprise material selected from the group consisting of polyethylene, polypropylene, elastics, nonwovens and combinations thereof. Preferably, each one-piece waste feature comprises at least one attachment device located at or near the ends of the one piece waste feature to secure the disposable garment in a folded configuration and another separate securing device to secure the One piece waste feature to the outer layer of the chassis. Suitable attachment devices herein preferably comprise one or more elements selected from the group consisting of adhesives, hooks, loops and combinations thereof. In another preferred embodiment, the chassis of the disposable garment may additionally comprise an absorbent assembly secured to the inner layer. In addition, the absorbent assembly may comprise a topsheet, a backsheet secured to the topsheet, and an absorbent core interposed between the topsheet and the backsheet, the backsheet being secured to the inner layer. The front of the garment has an extreme edge, longitudinal side edges, and leg edges. The back portion of the garment has an extreme edge, longitudinal side edges and leg edges.BRIEF DESCRIPTION OF THE DRAWINGS Although the description concludes with the claims pointing out in a particular manner and claiming differently the matter that is considered as formant of the present invention, it is believed that the invention will be better understood from the following description taken in combination with the drawings that will accompany, in which: Figure 1 is a perspective view of one embodiment of the disposable training pant of the present invention in a typical configuration of use as it would be applied to a user; Figure 2 is a plan view of the chassis of the disposable training pant modality of the present invention having portions cut away to reveal the underlying structure, the surface that will form the outer surface of the disposable garment giving away from the observer; Figure 3 is a plan view of the disposable training pant illustrating the waste device; Figure 3A is a cross-sectional view of the embodiment of Figure 3; Figure 4 is a plan view showing the disposable training pant of Figure 3 in its waste configuration; Figure 5 is a fragmented, enlarged perspective illustration of the disposable training pant illustrating the waste device; and Figure 6 is a fragmented, enlarged perspective illustration of the disposable training pant illustrating the waste device.

DETAILED DESCRIPTION OF THE INVENTION A unit disposable garment is one that is intended to be discarded after it is used (ie, it is not intended to be washed or restored or reused in another way), and which does not require separately handled parts such as a separate chassis and separate ear flaps. The disposable garment of the present may be provided with an absorbent assembly, which is placed in close proximity to the wearer's body to absorb and contain the various exudates discharged from the body. A preferred embodiment of the disposable garment of the present invention, disposable training pants 20, is shown in Figure 1. The training diaper 20 of Figure 1, comprises a chassis 14, side seams 10, leg openings 110, a waist opening 112, and absorbent assembly 22, and a device for disposal 140. Figure 2 is a partially cut-away perspective view of the disposable training pant 20 of Figure 1, before the front portion 56 is attached and the rear portion 58 of the chassis 14 by the seams 10 (shown in Figure 1). The chassis 14 of the present invention preferably has a symmetrical shape of a modified hourglass. The chassis 14 will have at least a front portion 56, a rear portion 58, a crotch portion 57, longitudinal side regions 88, and ear flaps 72 and will comprise an elastic ear flap member operatively associated with each flap. of ear 72 to form a laminated ear flap. The absorbent assembly 22 is secured to the chassis 14. As shown in Figure 2, a preferred embodiment of the chassis 14 further comprises an outer layer 48 and an inner layer 46 with the elastic ear flap members 90, elastic waistband members 76. , and elastic threads 105 preferably secured between the inner layer 46 and the outer layer 48. The outer layer 48 is that part of the chassis 14 that will form the outside of the disposable training pant 20, ie, the part that gives away from the wearer. The outer layer 48 is docile, soft-feeling, and non-irritating to the wearer's skin. A suitable outer layer can be manufactured from a wide range of materials, such as plastic films: woven or non-woven wefts of natural fibers (e.g., wood or cotton fibers), of synthetic fibers (e.g. polyester or polypropylene), or a combination of natural and synthetic fibers. Preferably, the outer layer 48 is hydrophobic and is made of a material that contains a significant amount of thermoplastic fibers, typically 50% or more, preferably 100%. Preferably the outer layer is a non-woven web of carded polypropylene fibers. A suitable outer layer is the nonwoven materials of the 6700 series manufactured by Scott Nonwovens of Landisville, N.J. The inner layer 46 is that part of the chassis 14 that will form the interior of the chassis 14, and will be in contact with at least the waist and legs of the user. The inner layer is also docile, soft feeling, and non-irritating to the wearer's skin. A suitable inner layer 46 can be manufactured from a wide range of materials, such as plastic films; woven or nonwoven webs of natural fibers (e.g., wood or cotton fibers), synthetic fibers (e.g., polyester or polypropylene fibers), or a combination of natural and synthetic fibers. Preferably, the inner layer 46 is made of a material that contains a significant amount of thermoplastic fibers, typically 50% or more, preferably 100%. Preferably the inner layer is also a non-woven web of carded polypropylene fibers: More preferably, the inner layer 46 is made of the same material as the outer layer 48. A suitable inner layer is the non-woven material of the 6700 series manufactured by Scott Nonwovens of Landisville, NJ The inner layer 46 is preferably placed adjacent to the outer layer 48 and is preferably attached thereto by attachment means (not shown) such as those well known in the art. For example, the inner layer 46 can be secured to the outer layer 48 by a uniform continuous adhesive layer, a patterned adhesive layer, or an array of separate lines, spirals or spots of adhesive. The adhesives that have been found to be satisfactory are manufactured by Findley Adhesives of Elm Grove, Wis., And marketed as Findley 2031. Alternatively, the joining means may comprise heat bonds, pressure joints, ultrasonic bonds, mechanical dynamic joints, or any other suitable joining means or combinations of these means as are known in the art. As used herein, the term "attached" encompasses configurations by which one element is directly secured to the other element by attaching the element directly to the other element, and configurations by which the element is indirectly secured to the other element by fixing the element to a member or intermediate means which in turn fix the other element. In a preferred embodiment of the present invention, the inner layer 46 and the outer layer 48 are indirectly joined together by attaching them directly to the elastic ear flap members 90, the elastic waistband member 76, and elastic yarns 105, and are directly bonded each other in the areas extending beyond the elastic ear flap members 90, the waistband elastic members 76 and the elastic threads 105. In a preferred embodiment of the present invention, at least a portion of the covers internal and external chassis 46, 48 will be subjected to mechanical stretching in order to provide a "zero stress" stretch laminate forming the elasticized ear flaps 30. In this way, the inner and outer layers 46, 48 are preferably capable elongate, very preferably stretchable, but not necessarily elastomeric, such that the inner and outer layers 46, 48, upon mechanical stretching occur or, they will be at least permanently elongated to a degree such that they will not fully return to their original, undistorted configuration. In the preferred embodiments, the inner and outer layers 46, 48 can be subjected to mechanical stretching without undue tearing or tearing. In this way, it is preferred that the inner and outer covers 46, 48 have a low elastic resistance in the transverse direction of the machine (lateral direction).

The chassis 14 of the disposable training pant 20 preferably further comprises elasticized leg cuffs 32 to provide improved containment of liquids and other exudates from the body. Each elasticized leg fold 32 may comprise several different embodiments to reduce leakage of body exudates in the leg regions. (The leg fold may be and is sometimes also referred to as leg bands, side flaps, barrier folds, or elastic folds.) U.S. Patent No. 3,860,003 issued to Buell on January 14, 1975, describes a disposable diaper providing a collapsible opening for the leg having a side flap and one or more elastic members to provide an elasticized leg fold (packing fold). U.S. Patent No. 4,9089,803 issued to Aziz and Blaney on March 20, 1990, discloses a disposable diaper having "upright" elasticated fins (barrier folds) to improve containment of the regions of the leg. U.S. Patent No. 4,695,278 issued to Lawson on September 22, 1987, discloses a disposable diaper having double folds that includes a gusset fold and a barrier fold. U.S. Patent No. 4,704,115 issued to Buell on November 3, 1987, discloses a disposable diaper or incontinence garment having sidewall leakage protection channels configured to contain the free liquids within the garment. Each of these patents are incorporated herein by reference. Although each elasticated leg fold 32 can be configured to be similar to any of the leg bands, side flaps, barrier folds, or elastic folds described above, it is preferred that each elasticated leg fold 32 comprises at least one side flap 104 and one or more elastic yarns 105. The chassis 14 of the disposable training pant 20 preferably further comprises an elasticised waistband 34 disposed adjacent the end edge 64 of the disposable training pant 20 in at least the back portion 58, and more preferably has an elasticised waistband 34 disposed in both of the front portion 56 and the back portion 58. The waistband of the disposable training pant 20 is that part which is intended to be placed adjacent to the wearer's waist. The elasticized waistband 34 provides a member that maintains a defined protection area, which is in contact with the wearer's waist, and which is elastically extensible in at least the lateral direction to dynamically adjust against the wearer's waist and to conform Dynamic to the user's waist to provide improved fit. In this manner, the waistband is generally that part of the disposable training shoe 20 extending from the end edge 64 of disposable training pants 20 to at least the waist edge 83 of the absorbent core 28. Although the elasticised waistband 34 can comprising a separate element attached to the chassis 14 of the disposable training pant 20, preferably the waistband is an extension of other elements of the disposable training pant 20 such as the inner layer 46, the outer layer 48, or any combination of these elements and an elastomeric material attached thereto. Alternatively, the topsheet 24 and the backsheet 26 of the absorbent assembly 22 can extend beyond the edges of the absorbent core 28 and have an elastomeric material bonded thereto to form an elasticised waistband. The disposable training pants are often constructed to have two elasticated waistbands; one positioned on the front portion 56 and another positioned on the rear portion 58. The disposable training pant 20 at least has an elasticized waistband 34 disposed in at least the central region 68 of the back portion 58. Preferably, as shown in Figure 2, another elasticized waistband is provided on the front portion 56. Preferably, both elastified waistbands 34 are disposed between the elastified ear flaps 30.

The elasticized waistband 34 can be constructed in a number of different configurations including those described herein with respect to the elastified side panels. In a preferred embodiment of the present invention shown in Figure 2, the elasticized waistband 34 comprises an elastic waistband member 76 interposed between the inner cover 46 and the outer cover 48 and operatively associated with either or both of the inner cover 46. and the outer cover 48 for puckering the front portion 56 and the back portion 58 of the disposable training pant 20. An example of said elasticized waistband for use herein is the elasticized waistband disclosed in U.S. Patent No. 4,515,595 which is incorporated herein by reference. issued to Kievit and Osterhage on May 7, 1985, and whose patent is incorporated here by reference. Any suitable elastomeric material can be used as is known in the art as the elastic waistband member 76 of the present invention. Examples of suitable elastomeric materials include elastomeric films, elastomeric foams such as polyurethane foams or cross-linked natural rubber foams; elastic canvas formed; elastomeric films such as technically shrinkable elastic materials; laminates of elastomeric film such as a laminate of a heat-shrinkable elastomeric film and an elastic member; elastomeric stretch laminates such as "zero stress" stretch laminates or mechanically stretched prestressed stretch laminates; and elastic threads made from rubber, LYCRA, or other materials. In a preferred embodiment, the elastic waistband member 76 comprises a thermally shrinkable elastomeric film. In an alternate embodiment, the elastified waistbands 34 and the elasticized ear flaps 30 can be formed by securing a single piece of elastomeric material to the disposable garment 20 on both the ear flaps 72 and the central region 68 of the front portion 56. In this way, the elasticized waistband 34 and the elasticized ear flaps 30 can be formed from the same piece of material to form a unitary structure. In a preferred embodiment, the chassis 14 comprises elasticised ear flaps 30 in the front portion 56 and in the rear portion 58. The elasticized ear flaps 30 are unitary elements of the chassis, ie, these are not separately handled elements secured to the chassis , but instead are formed from and are extensions of the chassis materials. The elasticized ear flaps 30 provide an elastically extensible feature that provides greater comfort and contour fit by initially initially comfortably fitting the disposable garment to the wearer and maintaining this fit throughout the time of use even after the garment is loaded. disposable with the exudates, since the elastified ear flaps allow the sides of the disposable garment to expand and contract. As shown in Figure 2, each ear flap 72 comprises that part of the chassis 14 extending laterally outwardly from and along the central region 68 of the chassis 14 towards the longitudinal side region 88 of the chassis 14. The ear flap 72 generally extends longitudinally from the end edge 64 of the chassis 14 to the longitudinal edge portions 62 of the chassis 14 that forms the leg opening (this segment of the longitudinal edge 62 being designated as the leg edge 106). In a preferred embodiment of the present invention, each ear flap is formed by the portions of the inner layer 46 and the outer layer 48 that extend beyond the central region 68 of the chassis 14. In a preferred embodiment of the present invention, the elastic flap members 90 are operatively associated with the chassis 14 in the ear flaps 72, preferably between the inner layer 46 and the outer layer 48, such that the elastic flap members 90 allow the elasticized ear flaps 30 to be elastically extensible in the lateral direction (elastically extendable laterally). As used herein, the term "elastically extensible" means a segment or parts of the chassis that will elongate in at least one direction (preferably the lateral direction for the ear flaps and the waistbands) when tension forces are applied (typically forces of lateral tension for the ear flaps and waistbands), and will return to approximately their size and previous configuration when the tension forces are removed. Generally, the elastomeric materials useful in the present invention will return contractively to at least about 75% of their original configuration within about 5 seconds or less of the stretch and immediate release thereof (i.e., an "energetic" elastic. ). In an especially preferred embodiment, the elastic fin member of ear flap 90 is operatively associated in the ear flap 72 by attaching the ear flap elastic member 90 to the inner layer 46, the outer layer 48, or both while that the elastic ear flap member 90 is in a substantially unstressed condition. At least a portion of the resulting composite elastomeric material containing the elastic ear flap member 90 is then subjected to sufficient mechanical stretching to permanently elongate the components of the inner layer and the outer layer (non-elastic components) of the laminate . The composite elastomeric laminate is then allowed to return to its substantially unstressed condition. The elastified ear flap is then formed into a stretch laminate with "zero tension" (Alternatively, the elastic flap member can be operatively associated in a tensioned condition and then subjected to mechanical stretching.; although this is not preferred as a stretch laminate with "zero tension"). As used herein, the term "zero-tension" stretch laminate refers to a laminate composed of at least two sheets of material that are secured to one another along at least a portion of their coextensive surfaces while they are in a substantially unstressed condition ("zero voltage"); one of the sheets comprising which is stretchable and elastomeric (ie, substantially return to its untensioned dimensions after it has been released a tensile force) and a second sheet which is elongatable (but not necessarily elastomeric) so that when the stretching of the second sheet occurs it will be made, at least to a degree, permanently elongated in such a way that upon the release of the applied tension forces, it will not return completely to its original, non-deformed configuration. The resultant "zero stress" stretch sheet is therefore made elastically extensible, at least up to the initial stretch point, in the initial stretch direction. Examples of these "zero stress" stretch laminates are disclosed in U.S. Patent No. 2,075,189 issued to Galligan, and others on March 30, 1937; U.S. Patent No. 3,025,199 issued to Harwood on March 13, 1962; U.S. Patent No. 4,107,364 issued to Sisson on August 15, 1978; U.S. Patent No. 4,209,563 issued to Sisson on June 24, 1980; and U.S. Patent No. 4,834,741 issued to Sabee on May 30, 1989. Each of these patents is incorporated herein by reference. Particularly preferred methods and apparatuses used to make the "zero tension" stretch laminates outside the inner layer, the outer layer and an elastomeric member disposed therebetween, use corrugated gear rollers to mechanically stretch the components. A discussion of suitable apparatuses and methods for mechanically stretching parts of a diaper is contained in the aforementioned U.S. patent no. 4,107,364 issued to Sisson on August 15, 1978, and in US Patent No. 4,834,741 US issued to Sabee on May 30, 1989. Particularly preferred apparatus and methods are disclosed in US Patent No. 5,167,897 US issued to Gerald M. Weber and others on December 1, 1992; U.S. Patent No. 5,156,793 issued to Kenneth B. Buell et al. on October 20, 1992; and in U.S. Patent No. 5,143,679 issued to Gerald M. Weber et al. on September 1, 1992; each of which are incorporated herein by reference. In a preferred embodiment of the chassis as shown in Figure 2, the longitudinal side region 88 is that part of the chassis 14 extending laterally outwardly from the ear flap 72 towards the longitudinal edge 62 of a chassis 14. The region longitudinal side 88 generally extends longitudinally from the end edge 64 of the chassis 14 to the longitudinal edge portion 62 of the chassis 14 forming the leg opening (this segment of the longitudinal edge 62 being designated as the leg edge 106). Although the longitudinal side region 88 may comprise a separate element attached to the ear flap 72 of the chassis 14, the longitudinal side region is preferably an extension of other elements of the chassis 14 such as the inner layer 46, the outer layer 48, the sheet upper 24 or the backsheet 26 or any combination of these elements. In a preferred embodiment of the present invention, each longitudinal side region 88 is formed by parts of the inner layer 46 and the outer layer 48 that extend beyond the ear flap 72. Referring again to Figure 1, the seams 10 are preferably formed by joining together the longitudinal side regions 88 of the front portion 56 with the longitudinal side regions 88 of the rear portion 58. The seam 10 may be formed in a number of different ways. For example, the seam 10 can be formed by joining together portions of the longitudinal side regions extending outwardly 88 to form a flap seam, the longitudinal side regions 88 can be joined together using any other of the seam patterns that are well known in the art. technique. The joining can be by any suitable means well known in the art appropriate for the specific material employed in the longitudinal side region 88 of the chassis 14; in this way the techniques of sonic sealing, heat sealing, adhesive bonding, sewing, and the like may be appropriate. Examples of suitable sewing techniques are disclosed in U.S. Patent No. 4,355,425 issued to Jones et al. On October 26, 1982; U.S. Patent No. 4,619,649 issued to Roberts on October 28, 1986; U.S. Patent No. 4,909,804 issued to Douglas, Sr. on March 20, 1990; and U.S. Patent No. 5,246,433 issued to Hasse et al. on September 21, 1993. The training pants 20 will also comprise an absorbent assembly 22. The absorbent assembly 22 of the disposable training pant 20 is an insert, i.e. element formed separately from the chassis and inserted in it. Absorbent assembly 22 is any absorbent device that is generally compressible, conformable, non-irritating to the wearer's skin, and capable of absorbing and retaining liquids such as urine and certain other exudates from the body. As shown in Figure 2, the absorbent assembly 22 of the disposable training pant 20 preferably comprises an absorbent core 28 and an outer cover layer comprising an upper sheet 24 and a back sheet 26. The absorbent assembly 22 is preferably positioned adjacent to the inner layer 46 and is preferably attached thereto by suitable joining means (not shown) such as those well known in the art (e.g., adhesive, ultrasonic bonding, etc.). The suitable attachment means herein are more fully described. further below with respect to the attachment of the backsheet 26 to the absorbent core 28. The absorbent core 28 can be any absorbent device that is generally capable of compressing, capable of forming, non-irritating to the wearer's skin and capable of absorbing and retaining fluids such as urine and other certain exudates from the body. The absorbent core 28 has a garment surface 100 (not shown), a body surface 101, side edges 82 and end edges 83. The absorbent core 28 can be manufactured in a wide variety of sizes and shapes (e.g., rectangular, of hourglass, "T", asymmetric, etc.) and from a wide variety of liquid absorbent materials commonly used in disposable diapers and other absorbent articles such as pulp of crushed wood, which is generally referred to as air felt. Examples of other suitable absorbent materials include creped cellulose wadding, meltblown polymers including coform, crosslinked cellulose fibers, tissue including tissue wraps, absorbent foams, absorbent sponges, superabsorbent polymers, gelling absorbent materials or any equivalent material or combinations thereof. materials. The configuration and construction of the absorbent core can also be varied (e.g., the absorbent core can have varying gauge zones, a hydrophilic gradient, a superabsorbent gradient, or acquisition zones with lower average density and lower average basis weight, or they can comprise a or more layers or structures). The total absorbent capacity of the absorbent core 28 must, however, be compatible with the design load and intended use of the disposable training pant 20. In addition, the size and absorbent capacity of the absorbent core 28 may be varied to suit users who are they go from babies to adults. A preferred embodiment of the absorbent assembly 22 has a symmetrical modified hourglass shaped absorbent core 28. Although a preferred embodiment of the absorbent assembly 22 has an absorbent core 28 in the form of a modified hourglass, it should be understood that the size, the shape, configuration and total absorbent capacity of the absorbent core 28 can be varied to suit users ranging from babies to adults. Thus, the dimensions, the shape and the configuration of the absorbent core can be varied (for example, the absorbent core can have a variable gauge, or a hydrophilic gradient, or it can or can not contain gelling absorbent materials). An exemplary absorbent structure for use as the absorbent core 28 of the present invention which has achieved wide acceptance and commercial success is described in U.S. Patent No. 4,610,678 issued to Weisman and Goldman on September 9, 1986; U.S. Patent No. 4,673,402 issued to Weisman, Houghton and Gellert on June 16, 1987; U.S. Patent No. 4,834,735 issued to Alemany and Berg on May 30, 1989; and U.S. Patent No. 4,888,231 issued to Angstadt on December 19, 1989 also disclosing absorbent structures that are useful in the present invention. Each of these references are incorporated herein by reference. The absorbent core 28 is preferably a block of air felt and particles of absorbent gelling material, approximately 13 centimeters wide (side dimension), approximately 37 centimeters long (longitudinal dimension) and approximately 8 centimeters across the narrower part of the crotch portion 57. Preferably, the portion of the absorbent core that will be generally located at the front portion 56 and the crotch portion 57 will have a higher basis weight than the portion of the absorbent core that will be generally located in the portion rear 58. More preferably, the portion of the absorbent core will generally be located at the front portion 56 and the crotch portion 57 will have a basis weight three times the base weight of the portion of the absorbent core that will generally be located at the rear portion. 58. In a preferred embodiment of the absorbent core 28, of a approximately 25.4 centimeters of the length of the absorbent core will usually be located at the front portion 56 and the crotch portion 57 and will have a basis weight of approximately 0.69 grams per square inch, and 1.4 centimeters of the absorbent core length will generally be located at the rear portion 58 and will have a basis weight of approximately 0.23 grams per square inch. The backsheet 26 is positioned adjacent the garment surface 100 of the absorbent core 28 and is preferably attached thereto by a joining means (not shown) such as those well known in the art. For example, the backsheet 26 can be secured to the absorbent core 28 by a continuous uniform adhesive layer, a patterned adhesive layer, or an array of separate lines, coils, or spots of adhesive. The adhesives that have been found to be satisfactory are manufactured by Century Adhesives, Inc. of Columbus, Ohio and marketed as Century 5227; and by H.B. Fuller Company of St. Paul, Minn. and that are marketed as HL-1258. The attachment means will preferably comprise an open-pattern network of adhesive filament as disclosed in U.S. Patent No. 4,573,986 entitled "Disposable Garment of Waste Containment", which was issued to Minetola and Tucker on March 4. of 1986, and which is incorporated herein by reference. An exemplary bonding means of an open filament pattern network comprises several lines of adhesive filaments twisted in a spiral pattern as illustrated by the apparatus and methods shown in United States Patent No. 3,91,173 Issued to Sprague, Jr. on October 7, 1975; U.S. Patent No. 4,785,996 issued to Ziecker et al. on November 22, 1978; and in U.S. Patent No. 4,842,666 issued to Werenicz on June 27, 1989; each of these patents are incorporated herein by reference. Alternatively, the joining means may comprise heat bonds, pressure joints, ultrasonic joints, mechanical dynamic joints, or any other suitable joining means or combinations of these joining means as are known in the art.

The backsheet 26 is impermeable to liquids (eg, urine) and is preferably manufactured from a thin plastic film, although other flexible liquid impervious materials may also be used. As used herein, the term "flexible" refers to materials that are docile and that will easily conform to the outline and general form of the general of the human body. The backsheet 26 prevents the exudates absorbed and contained within the absorbent core 28 from wetting the articles that are in contact with the disposable training pants 20 such as the sheets and undergarments. The backsheet 26 can thus comprise a woven or non-woven material, polymeric films such as polyethylene or polypropylene thermoplastic films, or composite materials such as a film-coated nonwoven material. Preferably, the backsheet is a film having a thickness of about 0.012 mm to about 0.051 mm. The size of the backsheet 26 is dictated by the size of the absorbent core 28 and the exact design of the selected disposable garment. In a preferred embodiment, the backsheet 26 will wrap around at least the absorbent core and possibly over the edge portions of the topsheet 24 in at least the crotch portion 57, such that the elasticated leg fold 32 It will be free of any material from the back sheet, and, thus, it is not inhibited by the material of the back sheet. Alternatively, the topsheet 24 may wrap around the core and below the edge portion of the backsheet 26 in at least the crotch portion 57, or the topsheet 24 and the backsheet 26 may be "notched" "in the crotch portion 57 such that the elasticized leg cuffs 32 are not inhibited by the material of the backsheet. The topsheet 24 is positioned adjacent the body surface 101 of the absorbent core 28 and is preferably attached to it and to the backsheet 26 by a joining means (not shown) such as those well known in the art. Suitable attachment means are described with respect to attachment of the backsheet 26 to the absorbent core 28. In a preferred embodiment of the present invention, the topsheet 24 and the backsheet 26 are directly bonded together in the areas they extend beyond the absorbent core 28 and are indirectly joined together by attaching them directly to the absorbent core 28 by the joining means (not shown). The topsheet 24 is docile, of soft feel and non-irritating to the wearer's skin. In addition, the topsheet 24 is permeable to liquid allowing liquids (eg, urine) to easily penetrate through its thickness. A suitable top sheet can be manufactured from a wide range of materials, such as porous foams; cross-linked foams; plastic films with openings; woven or non-woven webs of natural fibers (eg, wood or cotton fibers), synthetic fibers (e.g., polyester or polypropylene fibers), or a combination of natural and synthetic fibers. Preferably, the topsheet 24 is made of hydrophilic material comprising from about 20% to 30% rayon to feel wet and to signal a discharge of urine to a child who is trained for the toilet. There are a number of manufacturing techniques that can be used to manufacture top sheet 24. For example, top sheet 24 can be a web of non-woven fibers. When the upper sheet comprises a nonwoven web, the web can be spun bonded, carded, wet laid, blown in the molten state, hydroentangled, combinations of the above, or the like. A preferred top sheet is carded and thermally bonded by means well known to those skilled in the art of fabrics. A suitable top sheet is manufactured by Fiberweb North America and available as the thermally bonded non-woven 80/20 polypropylene / rayon nonwoven material.

The device for waste and the characteristic for the disposal of a piece Referring to Figures 1 and 3, training pants 20 preferably comprise a device for disposal 140 having a characteristic for the disposal of a piece 145 or a characteristic of a piece 145 or feature 145 for allowing the panting of training is secured in a bent configuration, i.e., a configuration for disposal to provide convenient removal of the training pant 20. In addition, the configuration for the desired waste here is one in which the leg openings are substantially sealed against leaks. More specifically, the feature of a scrap part 145 can be anchored to the outer layer 48 of the chassis 14 by a securing device 200 (shown in Figure 3A and 6) placed at any length along the back of the body. the characteristic of a piece for the waste 145 (thereby creating a device for the disposal of a piece 140) or at least a part of the characteristic for the disposal of a piece 145 may comprise a part of, i.e. be embedded inside, the outer layer 48 of the chassis. In the first example, the securing device 200 can be any of a number of securing devices known in the art such as adhesives, hooks, loops, ultrasonic bonding, thermal bonding, and other mechanical bonding and / or fastening device known in the art. the technique and combinations thereof. In the second example, at least a part of the device for the disposal of a piece 140 can be formed from at least a part of the material of the outer layer 48 of the chassis. The waste device 140 can be placed anywhere on the chassis 14 as long as it secures the training pant 20 in a desired configuration there for disposal. For example, the disposal device 140 can be placed on the outer layer 48 on the front portion 56 or on the outer layer 48 in the rear portion 58. The device for disposal 140 is shown in Figures 1 and 3 placed on the outer layer 48 in the rear portion 58. In one embodiment of the present invention, the disposal device 140 comprises a feature for the disposal of a piece 145 which is secured to the outer layer 48 of the chassis 14 by a central portion. 148 (as shown in Figures 1 and 3 to 5). The central portion 148 can comprise any one or a combination of a number of materials compatible with the characteristic for the disposal of a piece 145 and the training pants 20 here. For example, central portion 148 may comprise polyethylene, polypropylene, adhesive tapes, mechanical fasteners (e.g., hooks and / or loops), non-woven materials, elastomeric films, and combinations thereof. The importance of providing a central part 148 for bonding the characteristic for the scrap of a part 145 is one, the characteristic 145 can be securely fixed to the outer surface 48 of the chassis without the additional joining of another part along the characteristic for the disposal of a piece 145 and secondarily, said joining of the feature of a piece 145 primarily and very firmly in the central portion 148 allows the feature of a piece 145 to have a larger scale of movement around the folded garment where it is necessary to make the elimination thereof more efficient, especially where the characteristic of a piece 145 is secured to the outer layer 48 of the garment 20 only by the central portion 148. The characteristic for the disposal of a piece 145 is oriented parallel to the transverse axis 25 This orientation is critical for the design of the characteristic of a piece 145. That is, when folding and then tying or securing the chassis 14 after use, the openings of the first are closed better and secured by a clamping device (i.e., the feature for disposing of a part) which is oriented and which operates parallel to the transverse axis.; that is, oriented and operating in the transverse direction of the machine. Although not wishing to be bound by any particular theory, it is believed that the combination of the orientation and the operation of the characteristic for the disposal of a piece 145 allows greater flexibility and less stress and strain on the characteristic 145 thus leading to the lowest potential failure in its operation; that is, the slightest opportunity for a bent and securely closed training pant 20 to break the junctions of the one piece feature for waste 145 and to unfold once the training pant 20 is removed in a pocket. for waste. In addition, it is believed that the horizontal orientation of the one piece feature for scrap 145 provides the very effective holding capacity of the bent frame 40 and the greater sealing strength of the leg openings 110 of the chassis 40. By the term "capacity" "retention" is here implied the ability of the folded and sealed chassis to remain in said configuration without being manually removed the seal and unfolded. By the term "sealing strength" is meant herein the amount of sealing of the leg openings necessary to prevent leakage of exudate from the leg openings when the chassis is in a bent and sealed condition. Figure 3A provides a cross-sectional view of the disposal device 140 by which the characteristic of a waste piece is in a bent configuration, and in particular, a configuration bent at z. This is a preferred embodiment that allows the multiple lengths of the one-piece feature for scrap 145 to be designed in the scrap device 140. When used with the one-piece feature for scrap 145 the present central portion 148 is centrally positioned between the one-piece feature for scrap 145. In addition, fastening members 150 incorporated within grip tabs 190 are prefey assigned over the one-piece feature for scrap 145 at their ends as clearly shown in FIG. Figure 3A. These fastening or joining members 150 may consist of adhesives, hooks, eyelets, combinations thereof and any joining device known in the art to secure a part of the absorbent article to another part thereon. The clamping members 150 for the one-piece feature for disposal 145 may comprise materials consisting of polyethylene, polypropylene, elastics, nonwovens and combinations of any of these materials. Prefey, each fastening member 150 comprises a blend of non-woven-elastic material whereby two or more elastic yarns are located between two or more layers of non-woven material, said blend being formed as any of the known elastified waistband constructions. in the art and previously mentioned herein, for example, U.S. Patent No. 4,515,595 issued to Kievit et al. on May 7, 1985, said patent incorporated herein by reference. In an elastic feature for waste, the ends of the feature can rotate around the central portion, allowing greater flexibility when securing the diaper for removal. Figure 5 shows a fragmented, enlarged perspective illustration of the disposable training pant showing a modality of the waste device 140. In particular, the characteristic of a waste piece 145 that is pulled out of its configuration is shown. bent Additionally, a connection region 145 there is shown at each end of the feature of a scrap part 145 that is bent over a part of the underside of the one piece feature for scrap 145, thereby forming the tabs of grip 190 on each end of feature 145. In practiceWhen the training pants 20 are folded up and ready for securing, the characteristic of a piece for the waste 145 will be unfolded and / or pulled out of its previous use position. By the term "prior use position" is meant herein the starting position of the one piece feature for disposal 145 before use to seal the training pants 20 prior to disposal. Next, the retracted portions of the gripping tabs 190 will be opened and bent back to reveal the joining members 150 of the connecting regions 185. As mentioned above, these joining members 150 can be any of several types of adhesives and / or mechanical devices known in the art (e.g., tape tabs and / or hooks). Although the one-piece scrap feature 145 on the chassis 14 can be placed anywhere, the one-piece scrap feature 145 is preferably arranged or arranged in the rear portion 58 away from the end edge 64 of the training pants. Therefore, when it is folded or rolled up into training pants 20 after becoming soiled, the user secures the one-piece feature for disposal 145 to the outer layer 48 or to another part of the training pants 20 to provide secure closure of the training shorts rolled up. The one piece feature for the scrap 145 is preferably long enough at both ends so that the leg openings 110 can be substantially sealed against leakage, as shown in Figure 4. Sealing the leg openings 110 substantially contains the contents within the training shoe 20 soiled and preferably blocks most, if not all, of the exudate leaks from the leg openings 110. The one piece feature for the waste 145 may be composed of stretchable or stretchable material, such as natural or synthetic elastics, or composite elastic materials, to allow the one-piece feature for the waste 145 to stretch and stretch as necessary around a closed training pant 20 to effect the tight securing of the pants 20. In an alternative embodiment, the one piece feature for scrap 145 is extensible, preferably e in an elastic way without the use of elastics. Specifically, the feature of a scrap piece 145 may comprise an elastomeric film or a film web in structural elastic form as disclosed in U.S. Patent No. 5,518,801, published February 9, 1995, in the de Chappel et al., said patent being incorporated herein by reference. Although the particular embodiments of the present invention have been illustrated and described, it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit and scope of the invention.

Claims (9)

1. A disposable garment having a transverse axis and a longitudinal axis, comprising: (a) a chassis having a front portion, a rear portion opposite the front portion, and a crotch portion positioned between the front portion and the rear portion , comprising the chassis and an outer layer and an inner layer; (b) seams connecting said front portion to the rear portion to form two leg openings and a waist opening; the disposable garment characterized by (c) a waste device attached to the outer layer to allow the disposable garment to be secured in a configuration that provides for disposal of the disposable garment, the disposable device comprising a one piece feature for the scrap horizontally oriented and parallel to said transverse axis, said one piece feature for scrap having a pair of mutually opposite ends not joined to the outer layer of the garment such that said mutually opposite ends can freely wrap around said garment and securely retaining said garment in a folded position when the garment is being folded for removal, with the one piece feature being attached to the outer layer. The disposable garment according to claim 1, wherein at least a part of said one piece feature for disposal is attached to said outer layer by a central portion, an assurance device or at least at least a part of said characteristic of a piece for the waste is embedded within the outer layer. 3. The disposable garment according to any of the preceding claims, wherein said one piece feature for waste comprises a part of the upper layer of said frame. 4. The disposable garment according to any of the preceding claims, wherein said one piece feature for disposal is placed in a folded configuration before being used. The disposable garment according to any of the preceding claims, wherein said one piece feature for waste comprises material selected from the group consisting of polyethylene, polypropylene, elastics, nonwovens and combinations thereof. The disposable garment according to any of the preceding claims, wherein each mutually opposite end of said one-piece feature for disposal comprises a connection region having gripping tabs thereon in a folded configuration. The disposable garment according to any of the preceding claims, wherein each grip tab comprises at least one attachment member selected from the group consisting of adhesives, hooks, eyelets and combinations thereof. The disposable garment according to any of the preceding claims, wherein said chassis further comprises an absorbent assembly secured to the inner layer. The disposable garment according to any of the preceding claims, wherein said assembly comprises a top sheet, a back sheet secured to the top sheet and an absorbent core interposed between the top sheet and the back sheet, the back sheet being secured to the inner layer.