Patent Application
20160302976
The present disclosure relates to methods for manufacturing absorbent articles, and more particularly, to assembling absorbent articles having a design including: a first region extending across a first component, a second region extending across a second component, and a discontinuous region separating the first region from the second region.
Along an assembly line, diapers and various types of other disposable absorbent articles may be assembled by adding components to and/or otherwise modifying advancing, continuous webs of material. Webs of material and component parts used to manufacture diapers may include: backsheets, topsheets, absorbent cores, front and/or back ears, fastener components, and various types of elastic webs and components such as leg elastics, barrier leg cuff elastics, and waist elastics.
Some consumers may prefer purchasing absorbent articles, such as diapers, having various types of different graphic designs printed thereon. As such, continuous substrates of material having printed graphics may be converted into different components used to assemble the absorbent articles. During the assembly process, the substrates of material having the graphics printed thereon may be subjected to various process transformations, such as folding, bonding, trimming, and/or cutting.
In some instances, consumers may prefer diapers with graphics defining various designs and various colored areas that may be printed thereon and that may extend over the entire area, or a relatively large area, of the diaper that is visible when worn. Thus, in converting operations involving the assembly of diapers having printed graphics that extend over relatively large regions, the printed substrates may be subjected to various process transformations in areas where the printing is located. However, subjecting printed substrates to various process transformations, such as folding, cutting, bonding, and/or assemblage with other printed components in areas where the graphics are located may create challenges in performing such process transformations when attempting to maintain aesthetically pleasing final assemblies. For example, imprecise and/or inconsistent bonding, cutting, and/or folding operations performed on a substrate in an area where a printed graphic is located may act to visibly highlight such process imprecisions or inconsistencies, such as crooked bond lines, fold lines, and/or cut lines. Some diapers are configured with designs intended to extend contiguously across multiple components that are assembled during the manufacturing process. However, imprecise placement of one printed component onto another printed component may be visibly highlighted when graphics on the separate components appear disjointed and/or misaligned when the components are combined. For example,
Consequently, there remains a need to incorporate substrates and/or components into absorbent article assembly processes wherein the substrates and/or components include graphics printed and/or positioned in such a manner so as to functionally reduce noticeable visible results of imprecise and/or inconsistent manufacturing operations performed in areas where the graphics are located.
The present disclosure relates to absorbent articles and methods for assembling absorbent articles having a design including: a first graphic printed on a first component and a second graphic printed on a second component. During the assembly process, the first and second components are combined to form a discontinuous region devoid of printing and separating the first graphic from the second graphic. The discontinuous region may be defined by a substantially trapezoidal-shaped perimeter extending between an end edge of the first graphic and an end edge of the second graphic that defines an imaginary continuous extension of an established direction of the first graphic to the second graphic. Thus, the discontinuous region helps to provide the appearance that the first and second graphics form a contiguous design while at the same time mitigating the need to precisely align the graphics on separated components to form a contiguous design during the assembly process.
In one form, a method for assembling a disposable absorbent article comprises the steps of: providing a chassis having a longitudinal axis and a lateral axis, and having a first end region and a longitudinally opposing second end region separated from each other by a central region, the chassis comprising: an outer garment facing surface, an inner wearer facing surface, and an absorbent core disposed between the outer garment facing surface and the inner wearer facing surface, the chassis further comprising a first side edge and a second side edge separated laterally from the first side edge, the chassis comprising a printed chassis substrate comprising a first graphic comprising a longitudinal end edge extending longitudinally and adjacent a side edge of the printed chassis substrate, the longitudinal end edge of the first graphic comprising a length defined by a distance extending between a first side edge of the first graphic and a second side edge of the first graphic; providing a side panel comprising an outer lateral edge and an inner lateral edge, the side panel comprising a printed panel substrate comprising a second graphic, the second graphic comprising a lateral end edge adjacent a lateral edge of the printed panel substrate, the lateral end edge of the second graphic having a width defined by a distance extending laterally between a first side edge of the second graphic and a second side edge of the second graphic; and combining the first end region of the chassis and the side panel to define a discontinuous region devoid of printing and separating the first graphic from the second graphic, the discontinuous region defined by a substantially trapezoidal-shaped perimeter extending between the longitudinal end edge of the first graphic and the lateral end edge of the second graphic, defining an imaginary continuous extension of an established direction of the first graphic to the second graphic.
In another form, a method for assembling a disposable absorbent article comprises the steps of: providing a chassis having a longitudinal axis and a lateral axis, and having a first end region and a longitudinally opposing second end region separated from each other by a central region, the chassis comprising: a outer garment facing surface, an inner wearer facing surface, and an absorbent core disposed between the outer garment facing surface and the inner wearer facing surface, the chassis further comprising a first side edge and a second side edge separated laterally from the first side edge, a printed chassis substrate comprising a first graphic comprising a longitudinal end edge extending longitudinally and adjacent a side edge of the printed chassis substrate, the longitudinal end edge comprising a length defined by a distance extending between a first side edge of the first graphic and a second side edge of the first graphic; providing a belt comprising a first end region and a laterally opposing second region separated from each other by a central region, the belt comprising a printed panel substrate, the printed panel substrate comprising a second graphic, the second graphic comprising a lateral end edge adjacent a longitudinal edge of the printed panel substrate, the lateral end edge having a width defined by a distance extending laterally between a first side edge of the first graphic and a second side edge of the second graphic; connecting a fastening member with the first end region of the belt; combining the first end region of the chassis with the central region of the belt to define a discontinuous region devoid of printing and separating the first graphic from the second graphic, the discontinuous region defined by a substantially trapezoidal-shaped perimeter extending between the longitudinal end edge of the first graphic and the lateral end edge of the second graphic, defining an imaginary continuous extension of an established direction of the first graphic to the second graphic.
In yet another form, a method for assembling a disposable absorbent article comprises the steps of: providing a chassis having a longitudinal axis and a lateral axis, and having a first end region and a longitudinally opposing second end region separated from each other by a central region, the chassis comprising: a outer garment facing surface, an inner wearer facing surface, and an absorbent core disposed between the outer garment facing surface and the inner wearer facing surface, the chassis further comprising a first side edge and a second side edge separated laterally from the first side edge; providing a side panel comprising an outer lateral edge and an inner lateral edge, the side panel comprising a printed panel substrate comprising a first graphic, the first graphic comprising an end edge adjacent a longitudinal edge of the printed panel substrate, the end edge having a length defined by a distance extending laterally between a first side edge of the first graphic and a second side edge of the first graphic; providing a fastening member comprising a second graphic comprising a laterally extending end edge, the laterally extending end edge having a width defined by a distance extending laterally between a first side edge of the second graphic and a second side edge of the second graphic; combining the fastening member and the side panel to define a discontinuous region devoid of printing and separating the first graphic from the second graphic, the discontinuous region defined by a substantially trapezoidal-shaped perimeter extending between the end edge of the first graphic and the end edge of the second graphic, defining an imaginary continuous extension of an established direction of the first graphic to the second graphic; and combining the chassis and the side panel such that the side panel extends laterally outward from the first side edge of the first end region of the chassis.
In yet another form, a disposable absorbent article comprises: a chassis having a longitudinal axis and a lateral axis, and having a first end region and a longitudinally opposing second end region separated from each other by a central region, the chassis comprising: an outer garment facing surface, an inner wearer facing surface, and an absorbent core disposed between the outer garment facing surface and the inner wearer facing surface, the chassis further comprising a first side edge and a second side edge separated laterally from the first side edge, the chassis comprising a printed chassis substrate; a side panel connected with the first end region of the chassis, the side panel comprising an outer lateral edge and an inner lateral edge, the side panel comprising a printed panel substrate; and a design extending across a portion of the side panel and a portion of the chassis, the design comprising: a first region comprising a first graphic comprising a longitudinal end edge extending longitudinally and adjacent a side edge of the printed chassis substrate, the longitudinal end edge of the first graphic comprising a length defined by a distance extending between a first side edge of the first graphic and a second side edge of the first graphic; a second region comprising a second graphic, the second graphic comprising a lateral end edge adjacent a lateral edge of the printed panel substrate, the lateral end edge of the second graphic having a width defined by a distance extending laterally between a first side edge of the second graphic and a second side edge of the second graphic; and a discontinuous region devoid of printing and separating the first graphic from the second graphic, the discontinuous region defined by a substantially trapezoidal-shaped perimeter extending between the longitudinal end edge of the first graphic and the lateral end edge of the second graphic, defining an imaginary continuous extension of an established direction of the first graphic to the second graphic.
The following term explanations may be useful in understanding the present disclosure:
“Absorbent article” is used herein to refer to consumer products whose primary function is to absorb and retain soils and wastes. “Diaper” is used herein to refer to an absorbent article generally worn by infants and incontinent persons about the lower torso. The term “disposable” is used herein to describe absorbent articles which generally are not intended to be laundered or otherwise restored or reused as an absorbent article (e.g., they are intended to be discarded after a single use and may also be configured to be recycled, composted or otherwise disposed of in an environmentally compatible manner).
An “elastic,” “elastomer” or “elastomeric” refers to materials exhibiting elastic properties, which include any material that upon application of a force to its relaxed, initial length can stretch or elongate to an elongated length more than 10% greater than its initial length and will substantially recover back to about its initial length upon release of the applied force.
As used herein, the term “joined” encompasses configurations whereby an element is directly secured to another element by affixing the element directly to the other element, and configurations whereby an element is indirectly secured to another element by affixing the element to intermediate member(s) which in turn are affixed to the other element.
As used herein, the term “graphic” refers to printed areas of substrates. Graphics may include a color difference or transition of one or more colors and may define images or designs that are constituted by a figure (for example, a line(s), a symbol or character), or the like. A graphic may include an aesthetic image or design that can provide certain benefit(s) when viewed. A graphic may be in the form of a photographic image. A graphic may also be in the form of a 1-dimensional (1-D) or 2-dimensional (2-D) bar code or a quick response (QR) bar code. A graphic design is determined by, for example, the color(s) used in the graphic (individual pure ink or spot colors as well as built process colors), the sizes of the entire graphic (or components of the graphic), the positions of the graphic (or components of the graphic), the movements of the graphic (or components of the graphic), the geometrical shapes of the graphic (or components of the graphics), the number of colors in the graphic, the variations of the color combinations in the graphic, the number of graphics printed, the disappearance of color(s) in the graphic, and the contents of text messages in the graphic.
It is to be appreciated that all graphics discussed herein may be in various different forms, shapes, and/or sizes than those depicted herein. It is also to be appreciated that the graphics described herein may be configured to be different graphics, standard graphics, custom graphics, and/or personalized graphics. “Different in terms of graphic design” means that graphics are intended to be different when viewed by users or consumers with normal attentions. Thus, two graphics having a graphic difference(s) which are unintentionally caused due to a problem(s) or an error(s) in a manufacture process, for example, are not different from each other in terms of graphic design. “Standard” or “standardized” refers to graphics, products, and/or articles that have the same aesthetic appearance without intending to be different from each other. The term “custom” or “customized” refers to graphics, products, and/or articles that are changed to suit a small demographic, region, purchaser, customer, or the like. Custom graphics may be selected from a set of graphics. For example, custom graphics may include animal depictions selected from groups of animals, such as farm animals, sea creatures, birds, and the like. In other examples, custom graphics may include nursery rhymes and the like. In one scenario, custom products or articles may be created by a purchaser of such products or articles wherein the purchaser selects graphics for the articles or products from a set of graphics offered by a manufacturer of such articles or products. Custom graphics may also include “personalized” graphics, which may be graphics created for a particular purchaser. For example, personalized graphics may include a person's name alone or in combination with a design.
In addition, all graphics discussed herein may be printed so as to fade from a high intensity zone to a low intensity zone such as disclosed in U.S. Patent Application Nos. 62/093,620; 62/093,438; 62/093,452; 62/093,516; and 62/093,604, filed on Dec. 18, 2014, all of which are incorporated herein by reference. As used herein, the term “fade” means a visible gradual change in color hue, brightness, lightness, chroma, and/or saturation, for example, when a graphic fades from an area having a relatively high print density to an area having a relatively low print density. Further, the graphics herein may also be configured to change, appear, and/or disappear during usage.
“Longitudinal” means a direction running substantially perpendicular from a waist edge to a longitudinally opposing waist edge of an absorbent article when the article is in a flat out, uncontracted state, or from a waist edge to the bottom of the crotch, i.e., the fold line, in a bi-folded article. Directions within 45 degrees of the longitudinal direction are considered to be “longitudinal.” “Lateral” refers to a direction running from a longitudinally extending side edge to a laterally opposing longitudinally extending side edge of an article and generally at a right angle to the longitudinal direction. Directions within 45 degrees of the lateral direction are considered to be “lateral.”
The term “substrate” is used herein to describe a material which is primarily two-dimensional (i.e., in an XY plane) and whose thickness (in a Z direction) is relatively small (i.e., 1/10 or less) in comparison to its length (in an X direction) and width (in a Y direction). Non-limiting examples of substrates include a web, layer or layers or fibrous materials, nonwovens, films and foils such as polymeric films or metallic foils. These materials may be used alone or may comprise two or more layers laminated together. As such, a web is a substrate.
The term “nonwoven” refers herein to a material made from continuous (long) filaments (fibers) and/or discontinuous (short) filaments (fibers) by processes such as spunbonding, meltblowing, carding, and the like. Nonwovens do not have a woven or knitted filament pattern.
The term “machine direction” (MD) is used herein to refer to the direction of material flow through a process. In addition, relative placement and movement of material can be described as flowing in the machine direction through a process from upstream in the process to downstream in the process.
The term “cross direction” (CD) is used herein to refer to a direction that is generally perpendicular to the machine direction.
The term “taped diaper” (also referred to as “open diaper”) refers to disposable absorbent articles having an initial front waist region and an initial back waist region that are not fastened, pre-fastened, or connected to each other as packaged, prior to being applied to the wearer. A taped diaper may be folded about the lateral centerline with the interior of one waist region in surface to surface contact with the interior of the opposing waist region without fastening or joining the waist regions together. Example taped diapers are disclosed in various suitable configurations U.S. Pat. Nos. 5,167,897, 5,360,420, 5,599,335, 5,643,588, 5,674,216, 5,702,551, 5,968,025, 6,107,537, 6,118,041, 6,153,209, 6,410,129, 6,426,444, 6,586,652, 6,627,787, 6,617,016, 6,825,393, and 6,861,571; and U.S. Patent Publication Nos. 2013/0072887 A1; 2013/0211356 A1; and 2013/0306226 A1.
The term “pant” (also referred to as “training pant”, “pre-closed diaper”, “diaper pant”, “pant diaper”, and “pull-on diaper”) refers herein to disposable absorbent articles having a continuous perimeter waist opening and continuous perimeter leg openings designed for infant or adult wearers. A pant can be configured with a continuous or closed waist opening and at least one continuous, closed, leg opening prior to the article being applied to the wearer. A pant can be preformed or pre-fastened by various techniques including, but not limited to, joining together portions of the article using any refastenable and/or permanent closure member (e.g., seams, heat bonds, pressure welds, adhesives, cohesive bonds, mechanical fasteners, etc.). A pant can be preformed anywhere along the circumference of the article in the waist region (e.g., side fastened or seamed, front waist fastened or seamed, rear waist fastened or seamed).
The present disclosure relates to absorbent articles and methods for assembling absorbent articles having a design including: a first region extending across a first component, a second region extending across a second component, and a discontinuous region separating the first region from the second region. In some configurations, the first region may include a first graphic printed on a first component. And the second region may include a second graphic printed on a second component. During the assembly process, the first and second components are combined to form a discontinuous region devoid of printing and separating the first region from the second region. As discussed in more detail below, the discontinuous region may be defined by a substantially trapezoidal-shaped perimeter extending between an end edge of the first graphic and an end edge of the second graphic that defines an imaginary continuous extension of an established direction of the first graphic to the second graphic. Thus, the discontinuous region helps to provide the appearance that the first and second graphics form a contiguous design while at the same time mitigating the need to precisely align the graphics on separated components to form a contiguous design. As such, substrates and/or components to be incorporated into manufactured absorbent articles herein include graphics that are positioned and/or printed in such a manner so as to functionally reduce noticeable visible results of imprecise and/or inconsistent manufacturing operations performed in areas where the graphics are located.
As previously mentioned, the processes and apparatuses discussed herein may be used in the manufacture of different types of absorbent articles. To help provide additional context to the subsequent discussion of the assembly process, the following provides a general description of absorbent articles in the form of taped diapers that include belt substrates that may be assembled in accordance with the methods and apparatuses disclosed herein.
As shown in
As shown in
As shown in
It is to also be appreciated that a portion or the whole of the diaper 100 may also be made laterally extensible. The additional extensibility may help allow the diaper 100 to conform to the body of a wearer during movement by the wearer. The additional extensibility may also help, for example, the user of the diaper 100, including a chassis 102 having a particular size before extension, to extend the front waist region 116, the back waist region 118, or both waist regions of the diaper 100 and/or chassis 102 to provide additional body coverage for wearers of differing size, i.e., to tailor the diaper to an individual wearer. Such extension of the waist region or regions may give the absorbent article a generally hourglass shape, so long as the crotch region is extended to a relatively lesser degree than the waist region or regions, and may impart a tailored appearance to the article when it is worn.
As previously mentioned, the diaper 100 may include a backsheet 136. The backsheet 136 may also define the outer surface 134 of the chassis 102. The backsheet 136 may be impervious to fluids (e.g., menses, urine, and/or runny feces) and may be manufactured in part from a thin plastic film, although other flexible liquid impervious materials may also be used. The backsheet 136 may prevent the exudates absorbed and contained in the absorbent core from wetting articles which contact the diaper 100, such as bedsheets, pajamas and undergarments. The backsheet 136 may also comprise a woven or nonwoven material, polymeric films such as thermoplastic films of polyethylene or polypropylene, and/or a multi-layer or composite materials comprising a film and a nonwoven material (e.g., having an inner film layer and an outer nonwoven layer). The backsheet may also comprise an elastomeric film. An example backsheet 136 may be a polyethylene film having a thickness of from about 0.012 mm (0.5 mils) to about 0.051 mm (2.0 mils). Exemplary polyethylene films are manufactured by Clopay Corporation of Cincinnati, Ohio, under the designation BR-120 and BR-121 and by Tredegar Film Products of Terre Haute, Ind., under the designation XP-39385. The backsheet 136 may also be embossed and/or matte-finished to provide a more clothlike appearance. Further, the backsheet 136 may permit vapors to escape from the absorbent core (i.e., the backsheet is breathable) while still preventing exudates from passing through the backsheet 136. The size of the backsheet 136 may be dictated by the size of the absorbent core 142 and/or particular configuration or size of the diaper 100.
Also described above, the diaper 100 may include a topsheet 138. The topsheet 138 may also define all or part of the inner surface 132 of the chassis 102. The topsheet 138 may be compliant, soft feeling, and non-irritating to the wearer's skin. It may be elastically stretchable in one or two directions. Further, the topsheet 138 may be liquid pervious, permitting liquids (e.g., menses, urine, and/or runny feces) to penetrate through its thickness. A topsheet 138 may be manufactured from a wide range of materials such as woven and nonwoven materials; apertured or hydroformed thermoplastic films; apertured nonwovens, porous foams; reticulated foams; reticulated thermoplastic films; and thermoplastic scrims. Woven and nonwoven materials may comprise natural fibers such as wood or cotton fibers; synthetic fibers such as polyester, polypropylene, or polyethylene fibers; or combinations thereof. If the topsheet 138 includes fibers, the fibers may be spunbond, carded, wet-laid, meltblown, hydroentangled, or otherwise processed as is known in the art.
Topsheets 138 may be selected from high loft nonwoven topsheets, apertured film topsheets and apertured nonwoven topsheets. Apertured film topsheets may be pervious to bodily exudates, yet substantially non-absorbent, and have a reduced tendency to allow fluids to pass back through and rewet the wearer's skin. Exemplary apertured films may include those described in U.S. Pat. Nos. 5,628,097; 5,916,661; 6,545,197; and 6,107,539.
As mentioned above, the diaper 100 may also include an absorbent assembly 140 that is joined to the chassis 102. As shown in
Some absorbent core embodiments may comprise fluid storage cores that contain reduced amounts of cellulosic airfelt material. For instance, such cores may comprise less than about 40%, 30%, 20%, 10%, 5%, or even 1% of cellulosic airfelt material. Such a core may comprises primarily absorbent gelling material in amounts of at least about 60%, 70%, 80%, 85%, 90%, 95%, or even about 100%, where the remainder of the core comprises a microfiber glue (if applicable). Such cores, microfiber glues, and absorbent gelling materials are described in U.S. Pat. Nos. 5,599,335; 5,562,646; 5,669,894; and 6,790,798 as well as U.S. Patent Publication Nos. 2004/0158212 and 2004/0097895.
As previously mentioned, the diaper 100 may also include elasticized leg cuffs 156 and an elasticized waistband 158. It is to be appreciated that the leg cuffs 156 can be and are sometimes also referred to as leg bands, side flaps, barrier cuffs, elastic cuffs or gasketing cuffs. The elasticized leg cuffs 156 may be configured in various ways to help reduce the leakage of body exudates in the leg regions. Example leg cuffs 156 may include those described in U.S. Pat. Nos. 3,860,003; 4,909,803; 4,695,278; 4,795,454; 4,704,115; and U.S. Patent Publication No. 2009/0312730 A1.
The elasticized waistband 158 may provide improved fit and containment and may be a portion or zone of the diaper 100 that may elastically expand and contract to dynamically fit a wearer's waist. The elasticized waistband 158 may extend longitudinally inwardly from the waist edges 120, 122 of the diaper toward the lateral edges 148, 150 of the absorbent core 142. The diaper 100 may also include more than one elasticized waistband 158, for example, having one waistband 158 positioned in the back waist region 118 and one waistband 158 positioned in the front wait region 116, although other embodiments may be constructed with a single elasticized waistband 158. The elasticized waistband 158 may be constructed in a number of different configurations including those described in U.S. Pat. Nos. 4,515,595 and 5,151,092. In some embodiments, the elasticized waistbands 158 may include materials that have been “prestrained” or “mechanically prestrained” (subjected to some degree of localized pattern mechanical stretching to permanently elongate the material). The materials may be prestrained using deep embossing techniques as are known in the art. In some embodiments, the materials may be prestrained by directing the material through an incremental mechanical stretching system as described in U.S. Pat. No. 5,330,458. The materials are then allowed to return to their substantially untensioned condition, thus forming a zero strain stretch material that is extensible, at least up to the point of initial stretching. Examples of zero strain materials are disclosed in U.S. Pat. Nos. 2,075,189; 3,025,199; 4,107,364; 4,209,563; 4,834,741; and 5,151,092.
As shown in
Taped diapers may be manufactured and provided to consumers in a configuration wherein the front waist region and the back waist region are not fastened, pre-fastened, or connected to each other as packaged, prior to being applied to the wearer. For example, the taped diaper 100 may be folded about a lateral centerline with the interior surface 132 of the first waist region 116 in surface to surface contact with the interior surface 132 of the second waist region 118 without fastening or joining the waist regions together. The rear side panels 104 and 106 and/or the front side panels 108 and 110 may also be folded laterally inward toward the inner surfaces 132 of the waist regions 116 and 118.
The diaper 100 may also include various configurations of fastening elements to enable fastening of the front waist region 116 and the back waist region 118 together to form a closed waist circumference and leg openings once the diaper is positioned on a wearer. For example, as shown in
Referring back to
It is also to be appreciated that the rear side panels 104, 106 may be defined as discrete pieces and may also be defined by opposing end portions of a continuous belt 105, such as shown in
With continued reference to
It is to be appreciated that the rear side panels 104, 106 and/or the front side panels 108, 110 may comprise the same materials and/or may have the same structure. In some embodiments, the rear side panels 104, 106 and the front side panels 108, 110 may comprise different materials and/or may have different structures. It should also be appreciated that the rear side panels 104, 106 and the front side panels 108, 110 may be constructed from various materials. For example, the front and/or rear side panels may be manufactured from materials such as plastic films; apertured plastic films; woven or nonwoven webs of natural materials (e.g., wood or cotton fibers), synthetic fibers (e.g., polyolefins, polyamides, polyester, polyethylene, or polypropylene fibers) or a combination of natural and/or synthetic fibers; or coated woven or nonwoven webs. In some embodiments, the front and/or rear side panels include a nonwoven web of synthetic fibers, and may include a stretchable nonwoven. In other embodiments, the front and/or side panels include an inner hydrophobic, non-stretchable nonwoven material and an outer hydrophobic, non-stretchable nonwoven material.
The rear side panels 104, 106 and/or the front side panels 108, 110 may also be elastic and may each include elastic material interposed between an outer substrate layer and the inner substrate layer. The elastic material may include one or more elastic elements such as strands, ribbons, films, or panels. In some configurations, the rear side panels 104, 106 and/or the front side panels 108, 110 may also define curved contours.
Referring now to
As previously mentioned, the fastening members 162 and 164 may be constructed from various materials and may be constructed as a laminate structure. The fastening members 162 and 164 may also be adapted to releasably and/or refastenably engage or connect with another portion of the diaper 100. For example, as shown in
As previously mentioned, the diaper 100 may include a design including: a first region extending across a first component, a second region extending across a second component, and a discontinuous region separating the first region from the second region. In some configurations, the first region may include a first graphic printed on a first component. And the second region may include a second graphic printed on a second component. During the assembly process, the first and second components are combined to form a discontinuous region devoid of printing and separating the first region from the second region. Thus, the graphics on the diaper components may be printed and/or positioned in such a manner so as to reduce noticeable visible results of imprecise and/or inconsistent assembly operations performed in areas where the graphics are located. As such, discontinuous regions may be positioned in locations that are subject to combining transformations during the assembly process, such as locations adjacent intersections between side panel edges and chassis side edges.
It is to be appreciated that the graphics described herein may be printed in various ways and may be printed by various types of printing accessories, such as ink jet, flexography, and/or gravure printing processes. Ink-jet printing is a non-impact dot-matrix printing technology in which droplets of ink are jetted from a small aperture directly to a specified position on a media to create a graphic. Two examples of inkjet technologies include thermal bubble or bubble jet and piezoelectric. Thermal bubble uses heat to apply to the ink, while piezoelectric uses a crystal and an electric charge to apply the ink. In some configurations, the printing stations may include a corona treater, which may be positioned upstream of the printer. The corona treater may be configured to increase the surface energy of the surface of the substrate to be printed. In some configurations, the printing stations may also include an ink curing apparatus. In some configurations, the ink curing apparatus may be in the form of an ultraviolet (UV) light source that may include one or more ultraviolet (UV) lamps, which may be positioned downstream of the printer to help cure inks deposited onto the substrate from the printer to form the graphics. In some configurations, the ink curing apparatus may also include an infrared (IR) dryer light source that may include one or more infrared (IR) lamps, which may be positioned downstream of the printer to help dry water-based or solvent-based inks deposited onto the substrate to form the graphics. In some configurations, the ink curing apparatus may include an electron beam (EB or e-beam) generator that may include one or more e-beam electrodes, which may be positioned downstream of the printer to help cure inks deposited onto the substrate from the printer to form the graphics. In some configurations, graphics may be created using pigments or dyes embedded in another fluid such as a glue or lotion, such as disclosed in U.S. Patent Publication No. 2014/0148773 A1.
As shown in
As discussed above, the first graphic G1 is printed on the printed panel substrate 600 of the side panel 104. And it is to be appreciated that the first end edge 512 of the first graphic G1 may be located in various positions relative the inner lateral edge 600′ of the printed panel substrate 600 and/or inner lateral edge 206 of the side panel 104. For example, as shown in
With continued reference to
It is to be appreciated that the widths Wg1, Wg2 of the first graphic G1 and the second graphic G2 may vary. In addition, the widths Wg1, Wg2 of the first and second graphics G1, G2 may also be equal to each other. It is also to be appreciated that in some embodiments, the widths Wg1 and/or Wg2 may be the nominal width of a printed line.
As discussed above, the second graphic G2 is printed on the printed panel substrate 602 of the first front side panel 108. And it is to be appreciated that the first end edge 520 of the second graphic G2 may be located in various positions relative the inner lateral edge 602′ of the printed panel substrate 602 and/or inner lateral edge 222 of the side panel 108. For example, as shown in
Referring again to
In some configurations, the first end edge 528 and the second end edge 530 of the chassis graphic Gc may both extend between the first side edge 532 and the second side edge 534 adjacent the first longitudinal side edge 128 of the chassis 102. In some configurations, the first end edge 528 of the chassis graphic Gc may be positioned away from the first longitudinal side edge 128 of the chassis 102, and/or the second end edge 530 of the chassis graphic Gc may be positioned away from the first longitudinal side edge 128 of the chassis 102. For example, the first end edge 528 of the chassis graphic Gc may be positioned laterally inboard of and separated from the first longitudinal side edge 128 of the chassis 102, and/or the second end edge 530 of the chassis graphic Gc may be positioned laterally inboard of and separated from the first longitudinal side edge 128 of the chassis 102. It is also to be appreciated that in some embodiments, the first end edge 528 and/or the second end edge 530 of the chassis graphic Gc may be coextensive with a portion of the first longitudinal side edge 128 of the chassis 102.
As discussed above, the chassis graphic Gc is printed on the printed chassis substrate 604 of the chassis 102. And it is to be appreciated that the first end edge 528 of the chassis graphic Gc may be located in various positions relative the longitudinal edge 604′ of the printed chassis substrate 604 and/or first longitudinal edge 128 of the chassis 102. As discussed above and as shown in
It is also to be appreciated that the chassis graphics Gc may be configured in various different designs and sizes. For example, the lengths Lgc1, Lgc2 of the chassis graphic Gc may vary. In some embodiments, the length Lgc1 of the chassis graphic Gc may be equal to or substantially equal to the length Lgc2. In some embodiments, the length Lgc1 of the chassis graphic Gc may be equal to or substantially equal to the width Wg1 of the first graphic G1. And in some embodiments, the length Lgc1 of the chassis graphic may be equal to or substantially equal to the width Wg2 of the second graphic G2. In some embodiments, the lengths Lgc1, Lgc2 and/or widths Wg1, Wg2 may be different. In some embodiments, the widths Wg1, Wg2 and/or the lengths Lgc1, Lgc2 may be from about 4 mm to about 30 mm. Further, the chassis graphic Gc may be printed on various chassis components, such as the backsheet 136, and may be printed prior to or during assembly of the chassis components. And as discussed above, the chassis graphic Gc may be printed on a backsheet film layer that is subsequently covered by a nonwoven layer such that the chassis graphic Gc is visible through the nonwoven layer.
As discussed above and as shown in
As discussed above and as shown in
As previously mentioned, including first and/or second discontinuous regions 508, 510 as part of the design 500 help to provide the appearance that the first graphic G1, second graphic G2, and chassis graphic Gc on the assembled first rear side panel 104, first front side panel 108, and chassis 102 form a contiguous design. In addition, the first and/or second discontinuous regions 508, 510 of the design 500 help to mitigate the need during the manufacturing process to precisely align the graphics G1, G2, and Gc on the first rear side panel 104, first front side panel 108, and chassis 102 to form a contiguous design.
As shown in
Although the above discussion is mainly provided in the context of the first graphic G1, the second graphic G2, and the chassis graphic Gc such as shown in
It is also to be appreciated that the graphics may be also visible when viewed from outer surfaces and/or inner surfaces of various substrates and components. For example,
It is also to be appreciated that the designs herein and associated graphics may be also configured with discontinuous regions between various other components. For example,
As discussed above, the fastener graphic Gf is printed on the printed fastener substrate 606 of the fastening member 162. And it is to be appreciated that the first end edge 556 of the fastener graphic Gf may be located in various positions relative the inner lateral edge 606′ of the printed fastener substrate 606 and/or inner lateral edge 214 of the fastener member 162. For example, as shown in
And the first end edge 556 of the fastener graphic Gf may be coextensive and coincident with a portion of the inner lateral end edge 606′ of the printed fastener substrate 606, and the inner lateral end edge 606′ of the printed fastener substrate 606 may also define the inner lateral edge 214 of the fastening member 162. In some embodiments, the first end edge 556 of the fastener graphic Gf may be positioned longitudinally outboard of an inner lateral end edge 606′ of the printed fastener substrate 606. In particular, the first end edge 556 may be positioned longitudinally outboard of and separated from the inner lateral end edge 606′ of the printed fastener substrate 606. In some embodiments, the inner lateral edge 606′ of the printed fastener substrate 606 may also be positioned longitudinally outboard of the inner lateral edge 214 of the fastening member.
As discussed above and as shown in
With continued reference to
As discussed above, the rear side panels 104, 106 may include elastic material, such as elastic strands and/or film. In addition, the chassis 102 may include elastic material such as elasticized leg cuffs 156. During the assembly process, the elastic material in the first and/or second rear side panels 104, 106 and/or the chassis 102 may be positioned in an absorbent article 100 under tension and may be held under tension. However, such tension on the elastic material may be removed before or during the assembly process, allowing the elastic material in the rear side panels 104, 106 and/or the chassis 102 to contract. As such, contraction of the elastic material may deform the side panels 104, 106 and/or the chassis 102 so as to cause the first region 502, second region 504, and/or third region 506 of the design 500 to intersect or mate so as to form a contiguous design across the chassis 102 and the rear side panels 104, 106 and/or across the chassis 102 and the front side panels 108, 110. For example,
As discussed above with reference to
As previously mentioned, substrates and/or components that may be incorporated into manufactured absorbent articles, such as shown in
With continued reference to
At the second assembly station 850, the fastening member substrate 860 is cut into individual fastening members 160, 162 which may be bonded to the side panel web 830. It is to be appreciated that the fastening member substrate 860 may comprise various types of fastening member components, such as for example, adhesive tape substrates, mechanical fastener substrates, combination mechanical and adhesive fastener substrates, and the like. After the fastening member substrate 860 has been cut into individual fastening members 160, 162, the individual fastening members 160, 162 may be bonded to the side panel web 830 in various ways, such as for example, adhesive bonding, cohesive bonding, ultrasonic bonding, heat bonding, pressure bonding, friction bonding, autogenous bonding, and/or combinations of bonding methods. In some configurations, a pair of fastening member substrates 860 may be fed to the second assembly station 850 and cut into individual fastening members 160, 162 that are secured to either side is of the side panel web 830. The side panel web 830 having the individual fastening members 160, 162 bonded thereto may be slit into side panel ear webs at slitter 880 to provide a side panel 106, 108 on either side of the chassis 102.
With continued reference to
As previously mentioned, various apparatuses and methods may be utilized to assemble various components of the diapers 100 described herein. For example, it is to be appreciated that the assembly configuration described above with reference to
In the context of the various components, designs, and graphics identified above for example, with reference to
In another example, a method for assembling such disposable absorbent articles 100 may include: providing a chassis 102 and providing a belt 105, and connecting a fastening member 162 with an end region of a belt 105. The method may also include combining an end region 118 of the chassis 105 with a central region of the belt 105 to define a discontinuous region 508 devoid of printing and separating the first graphic G1 from the chassis graphic Gc, the discontinuous region 508 defined by a substantially trapezoidal-shaped perimeter P1 extending between the longitudinal end edge 528 of the chassis graphic Gc and the lateral end edge 512 of the first graphic G1, defining an imaginary continuous extension of an established direction of the first graphic G1 to the chassis graphic Gc.
In yet another example, a method for assembling such disposable absorbent articles 100 may include: providing: a chassis 102, a side panel 104, and a fastening member 162, wherein the fastening member 162 and the side panel 104 are combined to define a discontinuous region 554 devoid of printing and separating the first graphic G1 from the fastener graphic Gf, the discontinuous region 554 defined by a substantially trapezoidal-shaped perimeter P3 extending between the end edge 514 of the first graphic G1 and the end edge 556 of the fastener graphic Gf, defining an imaginary continuous extension of an established direction of the first graphic G1 to the fastener graphic Gf. In addition, the chassis 102 may be combined with the side panel 104 such that the side panel 104 extends laterally outward from the chassis 102.
Packages
It is also to be appreciated that absorbent articles comprising graphics according to the present disclosure may be placed into packages. The packages may comprise polymeric films and/or other materials. Graphics and/or indicia relating to properties of the absorbent articles may be formed on, printed on, positioned on, and/or placed on outer portions of the packages. Each package may comprise a plurality of absorbent articles. The absorbent articles may be packed under compression so as to reduce the size of the packages, while still providing an adequate amount of absorbent articles per package. By packaging the absorbent articles under compression, caregivers can easily handle and store the packages, while also providing distribution savings to manufacturers owing to the size of the packages.
Accordingly, packages of the absorbent articles of the present disclosure may have an In-Bag Stack Height of less than about 110 mm, less than about 100 mm, less than about 80 mm, less than about 78 mm, or less than about 76 mm, specifically reciting all 0.1 mm increments within the specified ranges and all ranges formed therein or thereby, according to the In-Bag Stack Height Test described herein. Alternatively, packages of the absorbent articles of the present disclosure may have an In-Bag Stack Height of from about 68 mm to about 110 mm or from about 72 mm to about 80 mm or from about 74 mm to about 78 mm, specifically reciting all 0.1 mm increments within the specified ranges and all ranges formed therein or thereby, according to the In-Back Stack Height Test described herein.
The in-bag stack height of a package of absorbent articles is determined as follows:
A thickness tester with a flat, rigid horizontal sliding plate is used. The thickness tester is configured so that the horizontal sliding plate moves freely in a vertical direction with the horizontal sliding plate always maintained in a horizontal orientation directly above a flat, rigid horizontal base plate. The thickness tester includes a suitable device for measuring the gap between the horizontal sliding plate and the horizontal base plate to within±0.5 mm. The horizontal sliding plate and the horizontal base plate are larger than the surface of the absorbent article package that contacts each plate, i.e., each plate extends past the contact surface of the absorbent article package in all directions. The horizontal sliding plate exerts a downward force of 850±1 gram-force (8.34 N) on the absorbent article package, which may be achieved by placing a suitable weight on the center of the non-package-contacting top surface of the horizontal sliding plate so that the total mass of the sliding plate plus added weight is 850±1 grams.
Absorbent article packages are equilibrated at 23±2° C. and 50±5% relative humidity prior to measurement.
The horizontal sliding plate is raised and an absorbent article package is placed centrally under the horizontal sliding plate in such a way that the absorbent articles within the package are in a horizontal orientation (see
The dimensions and values disclosed herein are not to be understood as being strictly limited to the exact numerical values recited. Instead, unless otherwise specified, each such dimension is intended to mean both the recited value and a functionally equivalent range surrounding that value. For example, a dimension disclosed as “40 mm” is intended to mean “about 40 mm.”
Every document cited herein, including any cross referenced or related patent or application is hereby incorporated herein by reference in its entirety unless expressly excluded or otherwise limited. The citation of any document is not an admission that it is prior art with respect to any invention disclosed or claimed herein or that it alone, or in any combination with any other reference or references, teaches, suggests or discloses any such invention. Further, to the extent that any meaning or definition of a term in this document conflicts with any meaning or definition of the same term in a document incorporated by reference, the meaning or definition assigned to that term in this document shall govern.
While particular embodiments of the present invention have been illustrated and described, it would be obvious to those skilled in the art that various other changes and modifications can be made without departing from the spirit and scope of the invention. It is therefore intended to cover in the appended claims all such changes and modifications that are within the scope of this invention.
This application claims the benefit of U.S. Provisional Application No. 62/147,006 filed on Apr. 14, 2015, which is herein incorporated herein by reference.
| Number | Date | Country | |
|---|---|---|---|
| 62147006 | Apr 2015 | US |
