Series of adult disposable absorbent articles comprising an absorbent core having a channel
By integrating channels into absorbent materials and adjusting the channel size and position according to BMI-driven morphological changes, the problem of insufficient fit and comfort of adult incontinence products for wearers of different body types and sizes has been solved, achieving better fit and reduced leakage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- PROCTER & GAMBLE CO
- Filing Date
- 2016-01-15
- Publication Date
- 2026-07-21
AI Technical Summary
Existing adult incontinence products fail to provide a good fit and comfort for wearers of different body types and sizes, especially in dry and wet conditions, and current technology has not effectively addressed the issues of bulkiness and sagging.
A series of absorbent products have been designed that integrate channels into the absorbent core, adjusting the size, shape, and position of the channels according to the shape changes driven by the consumer's BMI, to adapt to consumers of different body types and provide better fit and comfort.
By adjusting the channel design, better fit and comfort are achieved for consumers of different body types and sizes, reducing the incidence of leakage and providing stable coverage in both dry and wet conditions.
Smart Images

Figure CN117084866B_ABST
Abstract
Description
[0001] This application is a divisional application of the invention patent application filed on January 15, 2016, with application number 201680005943.0 and invention title "Series of disposable absorbent articles for adults including absorbent cores with channels". Technical Field
[0002] This disclosure relates to disposable absorbent articles and a series of disposable absorbent articles designed to fit different adult body sizes, shapes and types, and therefore their sizes are set to fit a wide range of adult consumers. Background Technology
[0003] Adult incontinence (“AI”) products are designed to absorb and contain fluids and other excretions from the body, preventing soiling of the body and clothing. One challenge is providing a range of adult incontinence products that meets urine containment needs while also offering products that meet the fit and comfort requirements of different wearers, ranging from hundreds of pounds. These challenges include the large volume and stiffness of the absorbent core in both dry and wet states.
[0004] In recent years, absorbent core designs have evolved towards structures with a relatively high proportion of absorbent polymer particles and a lower proportion of absorbent fibers (e.g., cellulose fibers) by weight, resulting in structures that are thinner than earlier absorbent core designs and capable of producing products with smaller volumes when dry. However, the latter structure can be slower in terms of liquid collection rates and, due to its larger proportion of absorbent polymer particles, can become sag, bulky, and gel-like when wetted. To address these issues, absorbent structures incorporating longitudinally oriented channels (hereinafter referred to as channels) have been developed.
[0005] Properly positioned and structured longitudinal channels facilitate liquid distribution through the deposition of absorbent polymer particles along the length of the absorbent core, thereby improving collection rates. They also reduce the likelihood of sagging and bulkiness of the article when wetted by providing longitudinal structural stiffness throughout the crotch area; sagging and bulkiness are caused by pressure within the wetted absorbent polymer particle deposits between the channels. Furthermore, they contribute by providing a substantial articulation zone, which minimizes the appearance of bulk while improving overall wearer comfort.
[0006] Examples of channels suitable for use with articles of this disclosure are disclosed in WO2012 / 170778 (Rosati et al., see also WO2012 / 170779, WO2012 / 170781 and WO2012 / 170808), and also in WO2014 / 093319, WO2014 / 093311 (both Arizti) and WO2014 / 093310 (Ehrnsperger). The material-free regions in these disclosures are flexible. Other prior art discloses straight channels, typically oriented longitudinally and / or laterally in the core, as shown in WO95 / 11652 (Tanzer) or WO2012 / 052,172A1 (VanMalderen).
[0007] There is a need to improve the fit and comfort of absorbent articles. It is known that absorbent articles of different sizes (in both longitudinal and lateral directions) based on body size can provide proper coverage and performance. The inventors have now discovered that the channel size and shape, as well as the channel location, within a product line should be specifically adapted to the wearer's size. Fitting the channel size to BMI-driven morphological variations (leg and crotch shapes) is beneficial for achieving adequate fit and comfort across a wide range of consumers. Furthermore, the inventors have discovered that the correlation between channel size, shape, and location, and BMI-driven morphological variations (i.e., leg and crotch shapes), can be used to improve the fit and comfort of articles of a given size within a product line. Simply put, the geometry of the channel should be adapted to the wearer's BMI to provide better fit and comfort.
[0008] Body Mass Index (BMI) is rising globally for both men and women. In the United States alone, more than one-third of adult women are now considered obese (BMI > 30). This has changed dramatically in the past 30 years; in 1980, only about 16% of adult women in the United States were obese. Larger women exhibit different body measurement ratios than smaller women; that is, as women grow larger, all body dimensions do not simply increase. Furthermore, women within the BMI range can also have very different body types. Current manufacturers of adult absorbent products lack awareness and understanding of this issue, and therefore the needs of such consumers are not adequately met. Therefore, there is a need to develop adult absorbent products for various body types and sizes to provide improved fit and contact levels between the body and the absorbent product, thereby reducing leakage and improving the overall fit, comfort, coverage, and ease of use of the product. There is a clear need for adult absorbent products designed for a wide range of wearers based on their BMI and body type. It is also necessary to communicate the beneficial effects of such customized adult absorbent products to the wearer in an easily understandable way (e.g., some women may not understand what BMI is or know their BMI value), and in a way that is not unpleasant (e.g., based on their BMI, without being disrespectful to women or making them feel embarrassed).
[0009] Therefore, the purpose of this disclosure is to describe absorbent articles and a series of absorbent articles in which a channel is integrated into the absorbent article and is designed to meet the needs of consumers within a BMI range, wherein each size in the series is designed to fit both when the pants are dry and when the pants are wet. Attached Figure Description
[0010] Figure 1 This is a plan view of a trouser-style diaper with continuous bands in the front and back waist areas.
[0011] Figure 2 The figure shows representative female body shapes with different BMIs, where the transverse plane B:B is defined at the gluteal cleft.
[0012] Figure 3 It shows in Figure 2 Representative female morphological measurements were obtained at plane B:B, including thigh distance, thigh diameter (thigh length) parallel to the longitudinal bifurcation plane, and thigh diameter (thigh width) parallel to the coronal plane.
[0013] Figure 4 It shows the function of BMI. Figure 2 The average female morphological shape at plane B:B.
[0014] Figure 5 The chart shows Figure 2The relationship between the "target BMI" and "thigh distance" at plane B:B.
[0015] Figure 6 The chart shows Figure 2 The relationship between the "target BMI" and "thigh eccentricity" at point B:B in plane B:B.
[0016] Figure 7 It shows representative female body types with different BMIs and the "flat area across the crotch area".
[0017] Figure 8 The chart shows the relationship between target BMI and the "plane area across the groin area".
[0018] Figures 9a-c show different examples of channels and how to determine various channel parameters.
[0019] Figures 10a-c show different examples of core channels for consumers with different BMIs.
[0020] Figures 11a-c show examples of different core channel configurations for consumers with different BMIs.
[0021] Figure 12 The chart shows the relationship between target BMI and target weight.
[0022] Figure 13 The chart shows the relationship between target BMI and target waistline.
[0023] Figure 14 The chart shows the relationship between target BMI and target hip size.
[0024] Figure 15 The chart shows the relationship between target BMI and target thigh size.
[0025] Figure 16 This shows how a woman's body shape changes as her BMI increases.
[0026] Figure 17 This shows the changes in women's body shape within various BMI categories.
[0027] Figure 18 This is a partial cutaway plan view of a trouser-type diaper with a pair of flaps, where the inside of the diaper facing the wearer faces the observer.
[0028] Figure 19 This is a partial cutaway plan view of a trouser-type diaper with front and rear flaps, where the diaper's outer surface faces the observer.
[0029] Figure 20 For the section with connecting relative waist areas Figure 1 A perspective view of the trouser-style diaper shown.
[0030] Figure 21 For the connection between the winglets and the relative waist area Figure 18 A perspective view of the trouser-style diaper shown.
[0031] Figure 22 The side seam connects the winglet and the opposite waist area. Figure 19 A perspective view of the trouser-style diaper shown.
[0032] Figure 23 for Figure 18 A schematic cross-sectional view taken along line 23-23 in an example of a folded outer leg hoop applicable to one embodiment of this disclosure.
[0033] Figure 24 For along Figure 1 A schematic cross-sectional view of the rear stripe of an embodiment applicable to this disclosure, taken from lines 24-24.
[0034] Figure 25 This is a schematic perspective view of an absorption structure including an absorption layer with two longitudinal main channels. Detailed Implementation
[0035] "Over-the-top clothing" or "trousers" refers to clothing items that have a defined waist opening and a pair of leg openings, and are typically worn by inserting the legs into the leg openings and pulling the garment up to the waist.
[0036] "Disposable" refers to clothing that is not intended to be washed or otherwise restored or reused as clothing (i.e., intended to be discarded after one use and to be recycled, composted, or otherwise disposed of in an environmentally compatible manner). Overgarments can be "absorbent" so that they absorb and contain various excretions from the body.
[0037] "Closed form" refers to a joint between the relative waist areas to form a continuous waist opening and leg opening. See, for example... Figure 20-22 .
[0038] A “collection” refers to a display of packages comprising single-use articles of different sizes, which have similar article constructions (e.g., the same elastomeric material in flaps, graphic elements [compositionally and / or structurally]), the packages have the same brand and / or sub-brand, and the packages are arranged adjacent to each other in a given area of a retail store. Collections are sold as a series of products, which typically have similar packaging elements (e.g., type of packaging material, film, paper, main color, design theme, etc.) that convey to consumers the message that the different individual packages are part of a larger collection. Collections typically have the same brand, such as “Depend,” and the same sub-brand, such as “forWomen Underwear.” Different collections may have the brand “Depend” and the sub-brand “Silhouette For Women.” The differences between the “for Women Underwear” collection and the “Silhouette For Women” collection include the different elastomeric materials in the flaps, where “for Women Underwear” includes strands as the elastomeric material, and “Silhouette For Women” includes a membrane elastomeric material. In addition, the packaging is noticeably different in that "for Women Underwear" is mainly packaged in a green plastic bag, while "Silhouette For Women" is mainly packaged in a brownish-red box.
[0039] Another example of a "series" as two separate "series" under the same brand "Certainty" is that one series has a sub-brand "Women's Underwear." Different series may have the same brand "Certainty" and the sub-brand "Smoeoth Shape Briefs for Women." The differences between the "Women's Underwear" and "Smooth Shape Briefs for Women" series include the different elastomer materials used in the side panels; "Women's Underwear" uses strands as the elastomer material, while "Smoeoth Shape Briefs for Women" uses a membrane elastomer material. Additionally, the packaging is noticeably different: "Women's Underwear" is primarily packaged in blue film bags, while "Smoeoth Shape Briefs for Women" is primarily packaged in brownish-red boxes.
[0040] The series also often shares the same trademarks, including trademarks for the brand, sub-brands, and / or the characteristics and / or benefits of the entire series.
[0041] "Online series" refers to a series distributed through commonly used online sources.
[0042] "Thigh spacing" refers to the narrowest lateral distance between the thighs at a point on a horizontal plane parallel to the coronal plane and defined at the gluteal fold (the gluteal fold is typically the fold of the buttocks or the horizontal gluteal fold). This is shown in... Figure 2 and Figure 3 And shown in Figure 2 At point B:B on the plane.
[0043] "Thigh eccentricity" is Figure 2 The approximate eccentricity of the thigh at plane B:B, where plane B:B is as described above. In the following text, the "thigh eccentricity" is considered negative when the principal axis of the thigh cross-section at plane B:B is perpendicular to the coronal plane of the body. The major axis of the thigh is the greater of the thigh width or thigh length, such as... Figure 3 As shown.
[0044] "Channel spacing," hereinafter referred to as CS, refers to the minimum lateral distance between two longitudinally extending, laterally spaced channels. This is illustrated in Figure 9. Figure 9a shows how CS is determined when the channels are longitudinally straight and parallel at their narrowest point in the crotch area, expressed as the distance between points p1 and p'1. Figure 9b shows how CS is determined when the channels are curved and not parallel at their narrowest point in the crotch area, expressed as the distance between points p2 and p'2. And Figure 9c shows how CS is determined when there are more than two longitudinally extending channels, expressed as the distance between points p3 and p'3. In this case, points p3 and p'3 are located in the crotch area at the narrowest lateral point between two laterally opposed channels with the maximum channel length.
[0045] "Channel curvature," hereinafter referred to as κ1, refers to the curvature (the reciprocal of the radius) at the narrowest point in the channel within the crotch area used to measure CS (represented by point p as shown in Figure 9). Figure 9a shows that when the channel is longitudinally straight and parallel to the point where CS is measured, κ1 equals 0 (radius equals ∞).
[0046] The "channel arm angle," hereinafter referred to as θ, refers to the angle of a channel arm that is longitudinally straight and parallel in the longitudinal center zone and has one or more channel portions extending from the straight portion. This is shown in Figure 9a. The channel arm angle is represented as θ. 1a and θ 1b .
[0047] “Channel length,” hereinafter referred to as L, refers to the maximum longitudinal length of the channel. This is shown by L1 in Figure 9a, L2 in Figure 9b, and L3 in Figure 9c.
[0048] The "flat area passing through the crotch area" is an approximately longitudinally flat region that is parallel to the longitudinal dividing plane and passes through the crotch area. This is shown in... Figure 7 middle.
[0049] The "hip" refers to the body circumference at the level of the largest posterior protrusion of the buttocks.
[0050] "Waist" refers to the horizontal circumference of the waist at the level of the center of the navel.
[0051] "Thigh" refers to the circumference of the thigh at its junction with the buttocks, and the measurement is taken perpendicular to the long axis of the thigh.
[0052] "Target waist" refers to the midpoint of the recommended waist range for products with a recommended waist range.
[0053] "Target hip" refers to the midpoint of the recommended hip range for a product with a recommended hip range.
[0054] "Target weight" refers to the midpoint of the recommended weight range for products with a recommended weight range.
[0055] "Target thigh" refers to the midpoint of the recommended thigh range for a product with a recommended thigh range.
[0056] "Target BMI derived from the waist" is measured at the target waist and shown on... Figure 13 The middle. It is calculated using the following formula:
[0057] (Target BMI derived from waist level) = a + b × (target waist level) × ln(target waist level)
[0058] in:
[0059] Target waist: in mm
[0060] Target BMI: in kg / m 2 as a unit
[0061] a = -2.483 × 10 -1
[0062] b = 4.625 × 10 -3
[0063] "Target BMI derived from the hip" is measured at the target hip and shown in... Figure 14 The middle. It is calculated using the following formula:
[0064] (Target BMI derived from hip measurement) = a + b × (target hip measurement) × ln(target hip measurement)
[0065] in:
[0066] Target hip measurement in mm
[0067] Target BMI: in kg / m 2 as a unit
[0068] a = -15.517
[0069] b = 6.010 × 10 -3
[0070] "Target BMI derived from weight" is measured from the target weight and shown in Figure 12 The middle. It is calculated using the following formula:
[0071] (Target BMI derived from weight) = a + b + (target weight) × ln(target weight)
[0072] in:
[0073] Target weight in kg
[0074] Target BMI: in kg / m 2 as a unit
[0075] a = 7.879
[0076] b = 6.525 × 10 -2
[0077] "Target BMI derived from the thigh" is measured from the target thigh and displayed. Figure 15 The middle. It is calculated using the following formula:
[0078] (Target BMI derived from thigh size) = a + b × (Target thigh size) × (Target thigh size) 2.5
[0079] in:
[0080] Target thigh in mm
[0081] Target BMI: in kg / m 2 as a unit
[0082] a = 8.979
[0083] b = 1.868 × 10 -6
[0084] "Target BMI" refers to the target BMI recommended for the waist range. If the waist range is not recommended, the target BMI is the target BMI derived from the hip range when recommending the hip range. If neither the hip nor the waist range is recommended, the target BMI is the target BMI derived from the weight range when recommending the weight range. If none of the waist, hip, or weight ranges are recommended, the target BMI is the target BMI derived from the women's underwear size when recommending the women's underwear size. If no women's underwear size is recommended, the target BMI is determined from the clothing size when recommending the clothing size. See Tables 1-5 for example.
[0085] Table 1 shows an example of how to determine the target BMI for absorbent products under recommended waist and weight ranges.
[0086] Table 1: For Always Discreet Underwear (Maximum) Absorbency) Establish target BMI
[0087]
[0088] Tables 2 and 3 show examples of how to determine the target BMI for absorbable products under recommended waist, hip, and weight ranges.
[0089] Table 2: For Depend for Women Underwear (Maximum) Absorbency) Establish target BMI
[0090]
[0091]
[0092] Table 3: For Depend Silhouette Briefs for Women (Maximum) Absorbency) to establish the target Standard BMI
[0093]
[0094] Tables 4 and 5 show examples of how to determine target BMI for women's underwear and clothing sizes, with recommended waist and hip measurements.
[0095] Table 4: Establishing Target BMI for Women's Underwear Size
[0096]
[0097]
[0098] Table 5: Establishing Target BMI for Women's Clothing Size
[0099]
[0100] Consumers with urinary incontinence are often traumatized by the condition. Many aspects of the condition contribute to this trauma, such as the fear of incontinence in public. Even when wearing absorbent clothing, there remains concern about leakage and worry that the absorbent material will be visible under clothing. Therefore, one of the purposes of this disclosure is to provide a product experience that helps normalize the condition by offering a more underwear-like, thinner, and body-hugging structure across the entire BMI range.
[0101] Body Mass Index (BMI) is a classification system for body shape based on height and mass. BMI can be calculated as follows:
[0102]
[0103] BMI includes different categories of weight, including: underweight (BMI < 20), normal weight (BMI 20–25), overweight (BMI 25–30), obese (BMI 30–40), and morbidly obese (BMI > 40).
[0104] Figure 16 This shows how a woman's body shape changes as her BMI increases. Figure 17 The diagram illustrates several specific shapes that can exist within each BMI category: rectangular (also known as cylindrical), hourglass, pear, and apple. The higher the BMI, the more likely a woman is to be on the right side of that body shape scale (towards the apple shape). The incidence of these shapes varies across BMI ranges; for example, women with higher BMIs are more likely to be apple-shaped or pear-shaped. Adult absorbent products can be marketed to women with specific body shapes such as apple-shaped women, rather than focusing on precise BMI values (which could be unpleasant for consumers), in order to match the wearer with products that best fit her unique body shape or size.
[0105] As BMI increases, some areas of a woman's body shape change, particularly the shape and width of her thighs. This is shown in... Figure 4 In, and shown in Figure 5 and 6 In the chart, as BMI increases, the distance between the thighs at the gluteal crease decreases. Additionally, as BMI increases, the eccentricity of the thighs at the gluteal crease changes, such as... Figure 4 As shown. This change results in a larger radius (smaller curvature) and a longer thigh axis (perpendicular to the coronal plane of the body). Additionally, as BMI increases, the length of the flat area passing through the groin region (parallel to the longitudinal bifurcation plane) increases, as... Figure 7 As shown and by Figure 8 The chart is shown.
[0106] The aim is to correlate the shape and spacing of the core channels with these physical body dimensions to achieve a better fit and more comfortable garment. This increases wearing comfort for each consumer while reducing leakage.
[0107] Table 6 below shows examples of the present invention’s series of three packages, as shown in Figures 10a-c, whose channel shape better matches the body shape of the consumer’s target BMI. Each package is designed to fit snugly to provide better fit and comfort while reducing the chance of leakage.
[0108] Table 6: Examples of the Product Series of the Invention
[0109]
[0110] Table 7 below shows examples of the three-pack of the present invention, as shown in Figures 11a-c, whose channel shape better matches the body shape of the consumer's target BMI. Each pack is designed to fit snugly to provide better fit and comfort while reducing the chance of leakage.
[0111] Table 7: Examples of the Product Series of the Invention
[0112]
[0113] These series of inventions are provided by way of non-limiting example only. Other series of inventions may be found within the scope of this disclosure.
[0114] Absorbent products
[0115] The absorbent articles disclosed herein are generally designed and constructed to manage bodily outflows such as urine, menstrual fluid, or other vaginal secretions.
[0116] In one embodiment, an absorbent article may include a base structure comprising a top sheet, a bottom sheet, and an absorbent core at least partially disposed between the top sheet and the bottom sheet. The absorbent base structure may include a waistband, leg cuffs, and / or elastic strands. See also various embodiments. Figure 1 An example of absorbent article 10 is shown in a flat, unshrinked state before the waist opening is completed, for example, by engaging the waist area with fastening elements 53a and b. Figure 22 (as shown in the image).
[0117] In one implementation scheme, see Figure 1One end of the absorbent article 10 may be configured as a front waist region 36, and the longitudinally opposite end may be configured as a rear waist region 38. The middle portion of the absorbent article 10 extending longitudinally between the front waist region 36 and the rear waist region 38 may be configured as a crotch region 37. In one embodiment, although not shown, the lengths of the front waist region 36, the rear waist region 38, and the crotch region 37 may each be, for example, about one-third of the length of the absorbent article 10. In other embodiments, the lengths of the front waist region 36, the rear waist region 38, and the crotch region 37 may have other dimensions. In various embodiments, the absorbent article 10 may have a laterally extending front waist end edge 136 in the front waist region 36 and a longitudinally opposite and laterally extending rear waist end edge 138 in the rear waist region 38.
[0118] In one implementation scheme, see Figure 1 The base structure 100 of the absorbent article 10 may include a first longitudinally extending side 137a and a second longitudinally extending side 137b that are laterally opposed. Both sides 137 may extend longitudinally between a front waist end 136 and a rear waist end 138. The base structure 100 may form a portion of the laterally extending front waist end 136 in the front waist region 36 and a portion of the longitudinally opposed and laterally extending rear waist end 138 in the rear waist region 38. In addition, the base structure 100 may also include an inner surface 102, an outer surface 104, a longitudinal axis 42, and a transverse axis 44. The longitudinal axis 42 may extend through the midpoint of the front waist end 136 and through the midpoint of the rear waist end 138, while the transverse axis 44 may extend through the midpoint of the first side 137a and through the midpoint of the second side 137b.
[0119] In various embodiments, a portion or all of the absorbent article 10 may be manufactured to be laterally stretchable. The stretchability of the absorbent article 10 may be desired to allow it to conform to the wearer's body during movement. This stretchability may also be desired, for example, to allow caregivers to extend the front waist area 36, back waist area 38, crotch area 37, and / or the base structure 100, thereby providing additional body coverage for wearers of different body types, i.e., customizing the absorbent article 10 for an individual wearer. Such extension may give the absorbent article 10 a generally hourglass shape, provided that the crotch area 37 is extended to a relatively smaller extent than the waist areas 36 and / or 38. This extension may also give the absorbent article 10 a fitted appearance during use.
[0120] Any part or all of an absorbent article may include a phage composition, as described in U.S. Serial No. 61 / 931,229, filed January 24, 2014, entitled “DISPOSABLE ABSORBENT ARTICLES COMPRISING BACTERIOPHAGES AND RELATEDMETHODS”.
[0121] Top film
[0122] In one implementation scheme, see Figure 1 and 24 The absorbent article 10 may include a top sheet 81. The top sheet 81 may be flexible, soft to the touch, and non-irritating to the wearer's skin, and may be elastically stretchable in one or more directions. Furthermore, the top sheet 81 may be liquid-permeable, allowing liquids (e.g., menstrual fluid, urine, and / or loose stools) to permeate its thickness. Various top sheets may also include, for example, hydrophilic materials configured to draw bodily fluids into the absorbent core of the base structure 100 (when these fluids are expelled from the body). Suitable top sheets 81 may be made from a wide variety of materials, such as woven and nonwoven materials, open-cell or hydroformed thermoplastic films, open-cell nonwoven materials, porous foams, mesh foams, mesh thermoplastic films, and / or thermoplastic woven fabrics. Suitable open-cell membranes may include those described in U.S. Patent Nos. 3,929,135, 4,324,246, 4,342,314, 4,463,045, 5,006,394, 5,628,097, 5,916,661, 6,545,197, and 6,107,539.
[0123] Perforated membranes or nonwoven topsheets typically allow bodily exudates to pass through without absorbing them, and reduce the tendency to allow fluids to flow back and seep back into the wearer's skin. Suitable woven and nonwoven materials may include natural fibers, such as, for example, wood fibers or cotton fibers; synthetic fibers, such as, for example, polyester, polypropylene, or polyethylene fibers; or combinations thereof. If the topsheet 81 comprises fibers, the fibers may be, for example, spunbond, carded, wet-laid, meltblown, hydroentangled, or otherwise processed, as is generally known in the art.
[0124] The top sheet may include a skin care lotion. Examples of suitable lotions include, but are not limited to, those described in U.S. Patent Nos. 5,607,760; 5,609,587; 5,635,191; 5,643,588; and 5,968,025, and those described in U.S. Patent Application No. 61 / 391,353 and U.S. Patent No. 2014-0257216. In addition to these compositions, the absorbent article may also include soluble cyclodextrin derivatives, such as those described in U.S. Publication No. 2014 / 0274870.
[0125] Additionally, the top sheet of this disclosure may also be a clustered laminated fiber web, as disclosed in U.S. Patent No. 7,410,683; and / or may be an open-cell fiber web, as disclosed in International Application No. PCT / CN2014 / 083769, dated August 6, 2014.
[0126] In one implementation, the top panel may include graphics (e.g., Figure 20 116) enables depth perception to be formed, as described in U.S. Patent No. 7,163,528.
[0127] negative
[0128] In one implementation, see, for example Figure 23 and 24 The absorbent article 10 may include a backing sheet 83. The backing sheet 83 may be impermeable or at least partially impermeable to fluids or bodily excretions (e.g., menstrual flow, urine, and / or loose stools) and may be made of a thin plastic film, although other flexible, liquid-impermeable materials may also be used. The backing sheet 83 prevents the absorbent or fluid-laden bodily excretions or fluids contained in the absorbent core of the absorbent article 10 from contacting articles such as sheets, pajamas, clothing, and / or underwear. The backing sheet 83 may include woven or nonwoven materials, polymer films such as thermoplastic films of polyethylene or polypropylene, and / or multilayer materials or composites, including films and nonwoven materials (e.g., having an inner film layer and an outer nonwoven layer). Suitable backing sheets may include polyethylene films having a thickness of about 0.012 mm (0.5 mils) to about 0.051 mm (2.0 mils). Examples of polyethylene films were manufactured by Clopay Corporation (Cincinnati, Ohio) under the names BR-120 and BR-121, and by Tredegar Film Products (Terre Haute, Ind.) under the name XP-39385.
[0129] A suitable material for the film may be a liquid-impermeable thermoplastic film having a thickness of about 0.012 mm (0.50 mil) to about 0.051 mm (2.0 mil), such as comprising polyethylene or polypropylene. Typically, the film may have a basis weight of about 5 g / m² to about 35 g / m². The film is typically positioned adjacent to and bonded to the outer surface of the absorbent core. For example, the film may be attached to the absorbent core by a uniform, continuous layer of adhesive, a patterned layer of adhesive, or an array of separate adhesive lines, spirals, or dots. Exemplary, but not limiting, adhesives include those manufactured by HBFuller (St. Paul, Minn., USA) and sold under HL-1358J. An example of a suitable attachment device comprising an open-patterned network of adhesive filaments is disclosed in No. 4,573,986. Another suitable attachment device comprising a plurality of adhesive filaments wound into a spiral pattern is illustrated by the apparatus and methods shown in the following patents: U.S. Patent Nos. 3,911,173; 4,785,996 and 4,842,666. Alternatively, the attachment device may comprise a thermal adhesive, a pressure adhesive, an ultrasonic adhesive, a dynamic mechanical adhesive, or any other suitable attachment device or combination thereof.
[0130] In one embodiment, the film 83 may be embossed and / or textured to provide a more fabric-like appearance. Furthermore, the film 83 may allow vapor to escape from the absorbent core of the absorbent article 10 (i.e., the film 83 is breathable) while still preventing or at least inhibiting the passage of fluids or bodily exudates through the film 83. In one embodiment, the dimensions of the film 83 may depend on the dimensions of the absorbent article 10 and, for example, the design or configuration of the absorbent article 10 to be formed.
[0131] Absorption core
[0132] See various implementation schemes. Figure 23 and 24The absorbent article 10 may include an absorbent core (also referred to as an "absorbent member," "absorbent assembly," "absorbent structure," or "absorbent composite") 200 disposed between a top sheet 81 and a bottom sheet 83. The absorbent core 200 may include a laterally extending front edge 236 in a front waist region 36, a longitudinally opposing and laterally extending rear edge 238 in a rear waist region 38, a first longitudinally extending side 237a, and a laterally opposing second longitudinally extending side 237b. Both side edges 237 may extend longitudinally between the front edge 236 and the rear edge 238. In one embodiment, more than one absorbent core 200 or more than one absorbent core layer may be provided in the absorbent article 10. The absorbent core 200 may be any suitable size or shape compatible with the absorbent article 10. Exemplary absorbent structures that have been accepted and commercially successful and can be used as absorbent core 200 of this disclosure are described in the following patents: U.S. Patents 4,610,678, 4,673,402, 4,888,231 and 4,834,735.
[0133] In one embodiment, a suitable absorbent core may comprise a cellulose breathable felt material. For example, such an absorbent core may comprise less than about 40%, 30%, 20%, 10%, 5%, or even 1% of the cellulose breathable felt material by weight. In addition, such an absorbent core may consist primarily of an absorbent gelling material in an amount of at least about 60%, 70%, 80%, 85%, 90%, 95%, or even about 100% by weight. Furthermore, a portion of the absorbent core may also comprise microfiber adhesive (if applicable). Such absorbent cores, microfiber adhesives, and absorbent gelling materials are described in U.S. Patent Nos. 5,599,335; 5,562,646; 5,669,894; 6,790,798; and 7,521,587, and U.S. Patent Publication No. 2004 / 0158212.
[0134] In one embodiment, the core (including multiple layers constituting the core system) can be printed and embossed, as described in U.S. Patent 8,536,401.
[0135] In one embodiment, the core may be separate from the base structure, as disclosed in U.S. Patent Nos. 6,989,006; 7,381,202; 7,175,613; 7,824,386; 7,766,887 and 6,989,005. In such embodiments, the measurements described in this disclosure may be performed on the base structure only or may be performed on a combination of the base structure and a separate core / absorbing assembly.
[0136] In one embodiment, the absorbent article of this disclosure, and more specifically, wherein a portion of an absorbent member is provided, may have a bodily fluid absorption rate greater than 3 g / sec according to U.S. Patent 6,649,810. According to U.S. Patent No. 6,649,810, the phrase "a portion of the absorbent article in which an absorbent member is provided" is intended to refer to the portion occupied by the absorbent member when the absorbent article is flat, undisturbed, and viewed in its plan view.
[0137] In one embodiment, the absorbent structure may have an uptake factor greater than 3 according to U.S. Patent No. 7,073,373, wherein the uptake factor is defined as absorbent core permeability divided by normalized retention capacity (which is defined by a "retention capacity test" – also according to U.S. Patent No. 7,073,373).
[0138] In one embodiment, the absorption complex has a body fluid absorption of greater than 75 g / 100 cm² according to U.S. Patent 6,649,810.
[0139] In one embodiment, the target location of the absorbent article may have a wicking value greater than 36% according to U.S. Patent No. 6,383,960.
[0140] In one embodiment, the absorbent article may have a flexural stiffness between 0.05 and 1.0 gf, according to U.S. Patent No. 5,810,796.
[0141] In one embodiment, the absorbent article may have a crotch fluid absorption rate greater than 3 g / sec according to U.S. Patent 6,649,810. In one embodiment, the freeze-dried composite of the absorbent complex may have an uptake rate of at least about 1.9 cubic centimeters (cc) liquid / second at 80% composite saturation according to U.S. Patent 6,689,934.
[0142] In one embodiment, the absorbent core 200 may include channels as described in the following patents: U.S. Patent No. 8,568,566; U.S. Publication Nos. 2012 / 316046, 2014 / 027066, 2014 / 163500, 2014 / 163506, 2014 / 163511, 2012 / 316526, 2012 / 316527, 2012v316 528, 2012 / 316529, 2012 / 316523, 2014 / 163501, 2014v163502, 2014 / 163503; and European Publication Nos. 2532328, 2532329, 2717823, 2717820, 2717821, 2717822, 2532332, 2740449, and 2740452.
[0143] like Figure 25 As shown, in some embodiments, the absorbent layer 317 may include at least two channels 326, which are substantially free of absorbent polymer particles and extend through the thickness of the absorbent layer in the longitudinal dimension. "Extends in the longitudinal dimension" means that the channels extend substantially in the longitudinal dimension, i.e., they extend more in the longitudinal dimension than in the transverse dimension, for example, at least twice as much in the longitudinal dimension as in the transverse dimension.
[0144] As used herein, a “channel” refers to a discrete portion of one or more absorbent layers extending through the thickness of the absorbent core, which is substantially free of absorbent polymers (particles or fibers), i.e., absorbent polymer particles are not intentionally present in such channels (longitudinal main channels or secondary channels) of the absorbent structure. However, it should be understood that absorbent polymer particles, as small as negligible amounts, may incidentally be present in the channels, which may not contribute to the overall function (e.g., the absorbency of the absorbent structure) to any significant extent. Typically, a channel has two transverse edges (in the shortest dimension) and two longitudinal edges running between the transverse edges (in the longest dimension). The transverse edges of the channel can be straight (i.e., perpendicular to the longitudinal sides), angled, or curved. The channel may have an average width w of at least 3 mm (the average width of the channel is defined as the average distance between the longitudinal side edges) or may have at least 4% of the width of the absorbent layer.
[0145] The channel can be permanent. Permanent means that the channel maintains its integrity at least partially in both dry and wet conditions; that is, the channel resists external forces caused by movement of the diaper wearer. A permanent channel is obtained by fixing an absorbent polymer to a base layer, such as by applying a thermoplastic adhesive material to the absorbent layer. Specifically, the absorbent layer of this disclosure may include a permanent channel formed by bonding a first base layer (316) and a second base layer (316') through the channel. Adhesive can typically be used to bond the two base layers through the channel, but bonding via other known methods such as ultrasonic bonding, pressure bonding, or thermal bonding is possible. The support layer can be continuously or discontinuously bonded within the channel.
[0146] Channel Series Implementation Plan
[0147] The first article may have a first channel having a channel spacing of about 0 mm to about 100 mm, about 10 mm to about 80 mm, or about 30 mm to about 50 mm. The second article may have a second channel having a channel spacing of about 0 mm to about 100 mm, about 10 mm to about 80 mm, or about 30 mm to about 50 mm, wherein the channel spacing of the first channel is greater than the channel spacing of the second channel.
[0148] The first channel of the first article may have a channel curvature of about 0 / m to about 20 / m, about 5 / m to about 15 / m, or about 7 / m to about 11 / m. The second channel of the second article may have a channel curvature of about 0 / m to about 20 / m, about 5 / m to about 15 / m, or about 7 / m to about 11 / m, wherein the channel curvature of the first channel is greater than the channel curvature of the second channel.
[0149] The first channel of the first article may have a channel arm angle of about 0° to about 45°, about 5° to about 30°, or about 18° to about 23°. The second channel of the second article may have a channel arm angle of about 0° to about 45°, about 5° to about 30°, or about 18° to about 23°, wherein the channel arm angle of the first channel is greater than the channel arm angle of the second channel.
[0150] The first channel of the first article may have a channel length of about 100 mm to about 500 mm, about 200 mm to about 400 mm, or about 250 mm to about 350 mm. The second channel of the second article may have a channel length of about 100 mm to about 500 mm, about 200 mm to about 400 mm, or about 250 mm to about 350 mm, wherein the channel length of the first channel is less than the channel length of the second channel.
[0151] The first channel may have at least one of the following: channel spacing, channel curvature, and channel arm angle, which is greater than that of the second channel. The first channel may have at least two of the following: channel spacing, channel curvature, and channel arm angle, which are greater than those of the second channel. The first channel may have each of the following: channel spacing, channel curvature, and channel arm angle, which are greater than those of the second channel. In any of these embodiments, the first channel may have a channel length less than that of the second channel.
[0152] Leg braces
[0153] In one implementation scheme, see Figure 18 and 19The base structure 100 of the absorbent article 10 may include longitudinally extending and laterally opposed leg cuffs 147a and 147b, which are disposed on the inner surface of the base structure 100 facing inward and contacting the wearer. Leg cuffs 147a and 147b may include one or more resilient tightening members disposed or arranged near the proximal edge of one or both of the leg cuffs 147. Furthermore, the resilient tightening members of the leg cuffs may also include one or more resilient strands 146 disposed or arranged near the distal edge of one or both of the leg cuffs 147. The resilient leg cuffs 147 may include several embodiments intended to reduce bodily exudates or fluid leakage in the leg area. The resilient leg cuffs 147 are sometimes referred to as leg bands, blocking cuffs, elastic cuffs, or bushing cuffs. Suitable resilient leg clamps 147 may include those described in U.S. Patent Nos. 3,860,003, 4,909,803, 4,695,278, 4,795,454, 4,704,115, and 4,909,803, as well as U.S. Patent Publication No. 2009 / 0312730. Leg clamps 147 can be formed by folding portions of the base structure 100 laterally inward, i.e., toward the longitudinal axis 42, to simultaneously form the respective leg clamps 147 and the sides 137a and b of the base structure 100. In other embodiments, leg clamps 147 can be formed by attaching one or more additional layers to or adjacent to each respective side 137a and 137b of the base structure 100. In one embodiment, the base structure 100 may also include other elastic members disposed adjacent to the side 137, which allow the article 10 to be shaped into a “U” shape when relaxation is allowed to stretch the inner surface 102 of the front waist region 36 toward the inner surface 102 of the rear waist region 38.
[0154] In one embodiment, each leg cuff 147 may include proximal edges 157a and 157b. These edges 157a and 157b are positioned adjacent to the longitudinal axis 42 relative to the distal edges 139a and 139b. The leg cuffs 147 may overlap the absorbent core 200, i.e., the proximal edges 157a and 157b are laterally inward of the corresponding sides 237a and 237b of the absorbent core 200. This overlapping configuration is desirable in order to give the absorbent article 10 a more finished appearance than that given by a non-overlapping configuration. In other embodiments, the leg cuffs 147 may not overlap the absorbent core 200.
[0155] In one embodiment, each leg cuff 147 may be connected to the inner surface 102 of the base structure 100 in a leg cuff connection area (not shown) adjacent to the front waist end edge 136 and a longitudinally opposing leg cuff connection area (not shown) adjacent to the rear waist end edge 138. In one embodiment, between the leg cuff connection areas, the proximal edge 157 of the leg cuff 147 remains free, i.e., not connected to the inner surface 102 of the base structure 100 or the absorber core 200. Furthermore, between the longitudinally opposing leg cuff connection areas, each leg cuff 147 may include one or more (specifically, one, two, three, or four elastic strands / leg cuffs 147) longitudinally extendable cuff elastic tightening members 159, which may be provided or arranged adjacent to the proximal edge 157 of the leg cuff 147 by any suitable method. Each of such cuff elastic tightening members 159 may be connected along the entire length of the leg cuff or only a portion of the leg cuff length. For example, such a hoop elastic tightening member 159 may be connected only at or near the longitudinally opposite ends of the leg hoop, and may be connected in the middle of the leg hoop length. Such a hoop elastic tightening member 159 may be disposed in the crotch area 37 and may extend into one or both of the front waist area 36 and the rear waist area 38. For example, the elastic tightening member 159 may be connected at or near the proximal edge 157 of each leg hoop 147 and extend into both the front waist area 36 and the rear waist area 38.
[0156] In various embodiments, each hoop resilient tightening member 159 may be enclosed within, for example, a folded pleat. In various embodiments, the hoop resilient tightening member 159 may be sandwiched between the two layers forming the leg hoop 147 by the two layers of the base structure 100, or may be attached to the surface of the base structure 100 or the leg hoop 147 and remain exposed.
[0157] In one embodiment, when stretched, a hoop elastic tightening member 159 disposed adjacent to the proximal edge 157 of each leg cuff allows the proximal edge 157 of the leg cuff to extend to the flat, uncontracted length of the base structure 100, such as the length of the base structure 100. When relaxed, the hoop elastic tightening member 159 contracts to pull the front waist area 36 and the back waist area 38 toward each other, thereby bending the article 10 into a “U” shape, wherein the interior of the “U” shape can be formed by the portion of the article 10 intended to be positioned toward the wearer’s body (i.e., the inner surface 102). Since each of the proximal edges 157 remains free between the longitudinally oriented leg cuff connecting areas, the contractile force of the elastic tightening member 159 can lift the proximal edge 157 of the leg cuff 147 away from the inner surface 102 of the base structure 100. When the article 10 is in a relaxed state, this lifting of the proximal edge 157 raises the leg cuff 147 into a position serving as a lateral barrier to prevent or at least inhibit leakage of bodily fluids.
[0158] An example of an acceptable leg brace 147 is disclosed in USSN 13 / 457,521, filed April 27, 2012, including appendices to the '521 patent application. Figure 8 at the publicly disclosed structure.
[0159] belt
[0160] In one implementation scheme, see Figure 19 Article 10 may include elastic waistbands 112a and 112b. The elastic waistbands provide improved fit and accommodation and can be configured to laterally elastically expand and contract to dynamically conform to the wearer's waist. The elastic waistbands may extend longitudinally from the waist edge of the absorbent article 10 toward the waist edge of the absorbent core 200. In one embodiment, the absorbent article 10 may have two elastic waistbands, one positioned in the rear waist region 38 and the other in the front waist region 36, although a single elastic waistband 82 may be used to construct other trouser embodiments. The elastic waistbands can be constructed in many different configurations, including those described in U.S. Patents 4,515,595 and 5,151,092.
[0161] In one embodiment, the elastic waistband may comprise a material that has been “pre-strained” or “mechanically pre-strained” (i.e., subjected to a degree of localized mechanical stretching to permanently elongate the material). These materials may be pre-strained using a suitable deep embossing technique. In other embodiments, these materials may be pre-strained by guiding the material through an incremental mechanical stretching system as described in U.S. Patent 5,330,458. The materials can then be allowed to return to their substantially unstretched state, thereby forming a zero-strain tensile material capable of stretching at least to the initial stretch point. Examples of zero-strain materials are disclosed in U.S. Patents 2,075,189, 3,025,199, 4,107,364, 4,209,563, 4,834,741, and 5,151,092.
[0162] wing
[0163] The winglet 189(ad) may be discrete with or integral with the base structure 100. Discrete winglets are shaped as independent elements that attach to the base structure 100. In some embodiments, this includes multiple winglets, such as two or four (often referred to as lugs or side wings), which attach to the side edges 137a and b of the base structure in the front waist region 36 and / or rear waist region 38 (see...). Figure 1 and 18-22). In other embodiments, this may include a front stripe and / or a rear stripe (“strip”) that span the front and rear (or rear) waist regions of the base structure 100, at least across the end-edge joints of the base structures 136 and 138 (see [link to relevant documentation]). Figure 1 and 24 In some embodiments, the belt 112 may overlap with the winglets to form a continuous belt-like structure (see [link]). Figure 19 ).
[0164] A stripe may include an inner nonwoven layer and an outer nonwoven layer, as well as an elastic component between them. Adhesives or thermoplastic adhesives may be used to bond the inner and outer nonwoven layers. Various suitable stripe configurations can be found in U.S. Patent Publication 2013 / -0211363.
[0165] An integral winglet is part of one or more layers of a base structure that protrudes outward from its longitudinal edge. This integral winglet can be shaped to include the winglet protrusion by cutting the base structure.
[0166] Although many of the embodiments with strap-like flaps described in the patent application are trouser-shaped articles, adhesive articles may also have strap-like flaps disposed in one or two waist areas.
[0167] The structure of the flaps plays a crucial role in the functionality of the absorbent article and differs substantially from the elastomers used in underwear. As mentioned above, incontinence events, such as SUI and UUI, can result in high flow and / or full bladder release. The amount of urine expelled during an incontinence event can vary widely depending on the type of incontinence and other factors such as time since the last trip to the toilet, fluid intake, whether it is day or night, etc. Loads can range from as low as a few drops of urine to loads up to 600 ml. It is uncommon to have single loads of up to 300 ml, 400 ml, and even 500 ml. These load levels exhibit a significant downward force associated with the load, which can be one pound or more. This downward force can be compensated for by the underlying structure of the absorbent article to minimize sagging, gaps, and leakage. To maintain the fit of the article even after a load, the article includes one or more elastomer elements 146 (including membranes and / or strands) disposed adjacent to and along the side seams 280a and b of the article (see, for example...). Figure 20The elastomeric element 146 terminates adjacent to and along the length of seams 280a and b, and extends laterally from one side to the other. These elastomeric elements should generate a normal force against the body sufficient to anchor the article. The position of one or more elastomeric elements, and the force exerted by one or more elastomeric elements, can be altered to ensure proper anchoring at the hip and along the body, specifically in the front and back waist regions. One form of anchoring that facilitates the fit of an article under load is disclosed in U.S. Patent 5,358,500, "Absorbent Articles Providing Sustained Dynamic Fit," issued to LaVon et al., October 25, 1994. It should also be noted that conventional underwear with elasticity along the waist and leg edges will generally not provide sufficient support to maintain a fit if a weight of 300-600 grams is applied to the crotch area of the underwear. This paragraph illustrates another fundamental reason why the appropriate length of the body rise / absorbent article is crucial for maintaining primary contact and padding, as well as proper anchoring on the body, to overcome the fit drop forces associated with high loads.
[0168] The seams 280a and b may each be approximately 150 mm to approximately 200 mm, approximately 160 mm to approximately 190 mm, or approximately 170 mm to approximately 180 mm. The seam is a portion of the overlapping wing (i.e., the distance from the waist opening of the overlapping wing or adjacent wing to the leg opening).
[0169] Fastening system
[0170] The absorbent article may also include a fastening system. When fastened, the fastening system interconnects the front waist area 36 and the back waist area 38, thereby allowing it to wrap around the wearer's waist during wear of the absorbent article 10. The fastening elements connecting the front and back waist areas form repeatably fastened side seams. This can be achieved by interconnecting flaps 189a and b in the back waist area with flaps 189c and d in the front waist area, or by interconnecting flaps in the back waist area with the base structure 100 in the front waist area. The fastening system may include fasteners 53a and b, such as those with protrusions, hook-and-loop fastening assemblies, interlocking fasteners such as inserts and slits, buckles, buttons, snaps, and / or androgynous fastening assemblies, but any other known fastening components are generally acceptable. The fasteners may releasably engage with a landing area 118, which may be a woven or nonwoven material. Some exemplary surface fastening systems are disclosed in U.S. Patents 3,848,594, 4,662,875, 4,846,815, 4,894,060, 4,946,527, 5,151,092, and 5,221,274. Specifically, the flaps may be as described in USSN 61 / 666,065, filed June 29, 2012, entitled “DISPOSABLE ABSORBENTREFASTENABLE PANTS AND METHODS FOR MANUFACTURING THE SAME”. Figure 3 AC and Figure 4 The absorbent article described and illustrated in Ak can be constructed accordingly. Furthermore, the absorbent article of this disclosure can be manufactured according to the description and illustrations in U.S. Serial No. 61 / 666,065 (see, for example, application '065). Figure 5-10C Exemplary interlocking fastening systems are disclosed in U.S. Patent 6,432,098. Fastening systems may also provide components for maintaining an article in a processing configuration, as disclosed in U.S. Patent 4,963,140. Fastening systems may also include a primary fastening system and an auxiliary fastening system, as disclosed in U.S. Patent 4,699,622. As disclosed in U.S. Patents 5,242,436, 5,499,978, 5,507,736, and 5,591,152, fastening systems may be configured to reduce movement of overlapping portions or improve fit.
[0171] Same or substantially the same basic structure
[0172] As disclosed in U.S. Publication No. 2013-0211355, it may be desirable to provide a series of packs for fitting wearers of different sizes, but the series of packs includes the same or substantially the same basic structure. For example, the series may include a first pack and a second pack, the first pack including an absorbent article of a first size, and the second pack including an absorbent article of a second size, wherein the first pack and the second pack include the same or substantially the same basic structure as described in U.S. Publication No. 2013-0211355. More specifically, the first package may include a first base structure, and the second package may include a second base structure, wherein each of the first and second base structures includes one or more of the following of the same dimensions: core width at the lateral centerline, core width at one of the front or rear core ends, distance from the distal edge of the left outer hoop to the distal edge of the right outer hoop, distance from the distal edge of the left inner hoop to the distal edge of the left outer hoop, distance from the proximal edge of the left inner hoop to the proximal edge of the right inner hoop, distance from the proximal edge of the left inner hoop to the distal edge of the left outer hoop, free height of the inner hoop, fold width of the inner hoop pleats, length of the inner hoop elastic member, length of the outer hoop elastic member, core length, and sheet width.
[0173] Additionally, each of the first and second base structures may include one or more of the following with the same chemical composition: top sheet, bottom sheet film, bottom sheet nonwoven fabric, core superabsorbent polymer, core pulp, core nonwoven fabric, core tissue, leg band film, leg band nonwoven fabric, superabsorbent polymer adhesive, core nonwoven fabric adhesive, leg band elastic adhesive, and bottom sheet nonwoven fabric / film adhesive.
[0174] Furthermore, each of the first and second base structures comprises one or more of the following with the same basis weight: top sheet, bottom sheet film, bottom sheet nonwoven fabric, core superabsorbent polymer, core pulp, leg cuff nonwoven fabric, leg cuff film, superabsorbent polymer adhesive, leg cuff adhesive, and bottom sheet nonwoven fabric / film adhesive.
[0175] Furthermore, each of the first and second base structures may contain a core superabsorbent polymer with the same composition. The first and second base structures may have the same component cross-sectional sequence and arrangement in at least one of the front waist area, rear waist area, and crotch area. The inner leg cuffs of the first and second base structures may be made of the same material.
[0176] Furthermore, the core adhesive of the first and second base structures can be one or more of the same adhesives. The first and second base structures can contain core superabsorbent polymers of the same chemical class and subclass.
[0177] Furthermore, each of the first and second base structures may respectively include a first wetting indicator and a second wetting indicator, wherein the first wetting indicator and the second wetting indicator are identical in composition.
[0178] Furthermore, the inner leg hoops of the first and second base structures may have the same component cross-sectional sequence and arrangement in at least one of the front waist area, rear waist area, and crotch area. The distance from the distal edge of the left outer hoop to the distal edge of the right outer hoop may be the same. The distance from the proximal edge of the left inner hoop to the distal edge of the left outer hoop may be the same. The distance from the proximal edge of the left inner hoop to the proximal edge of the right inner hoop may be the same. The inner and outer hoops have the same length.
[0179] In some implementations, the different sizes provided in the series may have the same or substantially the same basic structure, as flaps or straps can be used to allow the absorbent articles to fit wearers of different sizes. For example, the first and second absorbent articles may have the same basic structure (composition, dimensions, cross-section), but the first article may have different lengths due to the arrangement of the straps, such that the first article can be scaled to fit smaller wearers compared to the second article. As a second example, the first and second absorbent articles may have the same basic structure (composition, dimensions, cross-section), but the first article may have different lengths and / or widths due to the size of the straps, such that the first article can be scaled to fit smaller wearers compared to the second article.
[0180] In some embodiments, the first absorbent article and the second absorbent article may have the same basic structure in composition, but not in scale, and not in cross-section. In other embodiments, the first absorbent article and the second absorbent article may have two but not three of the following: (1) identical basic structure in composition; (2) identical basic structure in scale; and (3) identical basic structure in cross-section.
Claims
1. A series of packaging packages comprising two or more different sizes of disposable absorbent articles, the series comprising: The first package includes a first disposable absorbent product, which includes a first top sheet, a first bottom sheet, a first absorbent core including a channel, and a first pair of side seams. The first disposable absorbent product is of a first size and is in a closed form. The second package includes a second disposable absorbent product, the second disposable absorbent product including a second top sheet, a second bottom sheet, a second absorbent core including a channel and a second pair of side seams, the second disposable absorbent product being a second size and in a closed form; The second dimension is larger than the first dimension; The channel arm angle of the first absorber core is greater than that of the second absorber core; and The first package and the second package are in the same series.
2. The packaging series according to claim 1, wherein the channel spacing of the first dimension is from 0 mm to 100 mm.
3. The packaging series according to claim 1, wherein the channel spacing of the second dimension is from 0 mm to 75 mm.
4. The packaging series according to claim 1, wherein the channel curvature of the first dimension is from 0 / m to 20 / m.
5. The packaging series according to claim 1, wherein the channel curvature of the second dimension is from 0 / m to 15 / m.
6. The packaging series according to claim 1, wherein the channel arm angle of the first dimension is from 0° to 45°.
7. The packaging series according to claim 1, wherein the channel arm angle of the second dimension is 0° to 30°.
8. The packaging series according to claim 1, wherein the channel length of the first dimension is 100 mm to 500 mm.
9. The packaging series according to claim 1, wherein the channel length of the second dimension is from 150 mm to 600 mm.
10. The packaging series according to claim 1, wherein at least one of the channels of the first absorbent core and the second absorbent core is free of breathable felt and superabsorbent polymer.
11. The packaging series according to claim 1, wherein at least one of the channels of the first absorbent core and the second absorbent core comprises a linear segment.