JP2001525700A - System for personal care products with controlled placement of stabilized absorbent material and viscoelastic fluid - Google Patents

Abstract

(57) Abstract: A dispensing material for a personal care product made of artificial menstrual secretion fabric that wicks at least about 1 inch in less than about 1.5 minutes in a horizontal wicking test. Is provided. Materials that meet this performance standard generally have a pore size distribution with a high percentage of pore diameters of about 80-400 microns (typically greater than 80%), and densities below about 0.15 g / cc. are doing. Also provided is a personal care product system having a distribution / retention layer and a pad molding layer, each layer having a soil length ratio of 0.5 or less, and the distribution / retention layer having a saturation profile of 4 or less. .

Description

DETAILED DESCRIPTION OF THE INVENTION                Stabilized absorbent materials and controlled viscoelastic fluids System for personal care products with arrangement   No. 60 / 046,701 and US Provisional Patent Application Ser. 480, and 60 / 079,657 dated March 27, 1998.                                Field of the invention   The present invention relates to personal care products such as disposable sanitary napkins, diapers, or incontinence protection. A) A material structure and an absorbent structure or system useful for a product. More detailed In other words, the present invention provides a method for controlling complex viscous body fluids such as menstrual fluid. Sex system.                                Background of the Invention   Absorbable materials such as women's pads or sanitary napkins, diapers, and incontinence protection The article is intended to suck and retain bodily fluids. Current products are Lack of function, causing leaks higher than desired, and ) Is generated. Furthermore, current products are dry, fit, comfortable and confident It is not considered to provide complete other consumer attributes such as gender. These genera Much of the sex comes from the liquid management capabilities of the product. For example, woman A part of the sex pad is wrapped around the wearer's underwear to protect the underwear from leakage. Improvements are constantly being made in this area, such as the introduction of However, there is a need for feminine hygiene products that have low leakage and are comfortable to wear. You.   Most commercial pads have relatively high leakage rates. These pads are About 30% of the numbers fail, and the most common failure rate is 20%. These failures Because the menstrual secretion is highly viscous and the delivery volume can vary greatly, It is thought that the pad becomes overloaded and then begins to leak. Menstruation Inadequate distribution of secretions is one of the major causes of overloading of the target area. It is considered to be one.   In the field of urine management for personal care products such as diapers, the pore size This distribution is often provided by a material in which the fabric has narrow pores. this These materials should be sufficient to allow the target area to accept the next insult. In time, a high-viscosity, low-viscosity urine excreta in the target area must be transferred. Urine is moved to a relatively remote part of the diaper, overcoming considerable hydrostatic pressure . On the other hand, in the case of women's hygiene products, the total volume of Due to the higher viscosity, it is more difficult to move this fluid. Distribution material Are completely different between women's hygiene products and products primarily related to urine management. There must be.   Some examples of improved urine management are described in U.S. Patent Application Nos. 08 / 754,414 and 08/7 No. 55,136, which disclose advanced absorbent material applications and system configurations. The total is disclosed. The physics of fluid management is somewhat similar to that of menstrual discharge and urine. However, the nature of menstrual secretions is complex, and Because of the variable, the design of absorbent materials and systems is not required for urine management They need to be very different. Attempt to provide low-leakage feminine hygiene products Prior attempts include U.S. Pat.No. 5,549,589 which studies the distribution structure of menstrual secretions. No. 5,466,232, and 5,200,248. All of these references are based on It does not provide a unique combination of Ming attributes.   It is an object of the present invention to provide an excellent method for transferring menstrual secretions from a target area. Delivers a dry feel and leaks that are more comfortable to wear than traditional pads Is to provide feminine hygiene products with less.   It is an object of the present invention to adapt to the characteristics of menstrual secretion and then to Guided into the stem and substantially isolated within the localized area of the absorbent system Use materials designed to reduce leakage and reduce wear It is to provide an improved feminine hygiene product which has improved. Further of the present invention Can be used to hold a sufficient volume of liquid without disturbing suction and distribution And providing a feminine hygiene product having a plurality of pores that can be so It is to be.                                Summary of the Invention   The above objects of the present invention are ideal for capillary pore size and wicking viscoelastic fluids. Stabilized highly wettable to provide a suitable degree of wettability This is achieved by a distribution material consisting of functional fibers. Exposure to viscoelastic fluids and similar These materials are then associated with the wicking distance, wicking speed, and amount of fluid to be moved. And exhibit improved fluid distribution performance.   The dispensing material for the personal care products of the present invention is a horizontal wicking test with artificial menstrual secretions. In tests, the fabric is capable of wicking about 1 inch in less than 1.5 minutes. You. Materials meeting this performance standard typically have diameters of about 80 to 400 microns. Pore size distribution with a high percentage of pores (typically more than about 50%) And has a density of about 0.15 g / cc or less.   It has a distribution / retention layer and a pad molding layer, each layer having a dirt (s) of 0.5 or less. tain) has a length ratio and the distribution / retention layer has a saturation profile of 4 or less Personal care products are further provided.                             BRIEF DESCRIPTION OF THE FIGURES   FIG. 1 is a graph of 0.05 g / cc pore size distribution for Example 1, Repetition 1.   FIG. 2 is a graph of a pore size distribution of 0.05 g / cc for Example 1, Repetition 2.   FIG. 3 is a graph of 0.1 g / cc pore size distribution for Example 1, Repetition 1.   FIG. 4 is a graph of 0.1 g / cc pore size distribution for Example 1, Repetition 2.   FIG. 5 is a graph of the pore size distribution of the unoriented 0.028 g / cc material of Example 2. is there.   FIG. 6 is a graph of the pore size distribution of the 0.068 g / cc material of Example 2.   FIG. 7 is a graph of the pore size distribution of the oriented 0.028 g / cc material of Example 2.   FIG. 8 is a diagram showing a multi-layered design.   FIG. 9 is a diagram illustrating an example of the cover material.   FIG. 10 is a diagram showing a suction layer.   FIG. 11 is a diagram showing a distribution / holding layer.   FIG. 12 is a diagram showing a bottom layer, that is, a pad molding layer.   FIG. 13 shows a two-layer design feminine hygiene product.   FIG. 14 is a diagram showing a mold of a four-layer design.   FIG. 15 shows a top layer, a second layer which is a distribution / holding layer, and a second layer which is a pad molding layer. 3 is a bar graph of a two system having three layers, the bar graph being a liquid row; Dings in grams.   FIG. 16 shows a design of a feminine hygiene product including a sine wave pattern.   FIG. 17 is a diagram showing an emboss pattern which is a shell pattern of a personal care product. is there.                                   Definition   "Disposable" is intended to be disposed of after use, and is to be washed and reused. Including things you do not think.   "Before" and "after" are used throughout this specification to denote a relationship to the garment itself And any position taken by the garment when the garment is positioned on the wearer. No suggestion.   "Hydrophilic" refers to fibers wetted by an aqueous liquid in contact with the fibers, or Or the surface of a fiber. The degree of wetting of the material itself depends on the liquid and material Can be expressed by a contact angle and a surface tension. Measures wettability of specific fiber materials Apparatus and technology suitable for performing the measurement are Cahn SFA-222 Surface Force Analyzer System Or a substantially equivalent system. With this system Fibers with a contact angle less than 90 ° when measured are referred to as “wettable” or hydrophilic. Fibers with contact angles equal to or greater than 90 ° "Or hydrophobic.   "Inward" and "outward" refer to the position relative to the center of the absorbent garment, especially Is close to or horizontally and / or vertically to the vertical and horizontal center of the garment Away from   "Layer", when used alone, refers to a single element or two of a number of elements Can have the meaning of   "Liquid" can flow, and can be poured or contained in a container It means a substance and / or a material that can take a part shape.   "Liquid communication" refers to the passage of liquid from one layer to another, or to one position within a layer. Can be moved from one position to another.   "Vertical" and "horizontal" have their ordinary meaning. Vertical axis is flat On the surface of the article when fully deployed and in the upright position when the article is worn. Generally parallel to a vertical plane that equally divides the wearing wearer into the left and right halves. The horizontal axis is the object It is located in the plane of the product and substantially perpendicular to the vertical axis. As shown, the article is vertically It is longer than in the horizontal direction.   “Particles” includes, but is not limited to, spherical particles, cylindrical fibers or fibers. Lands, flat or rough surfaces, sheets, ribbons, strings, strands, etc. Refers to any geometric shape such as   "Spray" and its deformation is caused by the applied pressure of air or other gas, By or by centrifugal force, as a stream, or spiral spiral filament Violently through orifices, nozzles, etc. Containing liquid. Sprays can be continuous or discontinuous.   As used herein, a "nonwoven fabric or web" is an Laid but not as identifiable as in a knitted fabric Not a web having the structure of individual fibers or yarns. Non-woven fabric The web or web can be used, for example, in a melt blow process, Formed by many processes, such as process and combined carding process Is done. The basis weight of a nonwoven fabric is usually an ounce of material per square yard Useful fiber diameter, expressed in (osy) or grams per square meter (gsm) Diameter is usually expressed in microns. (To convert from osy to gsm, add 33.91 to osy You only have to ride. )   As used herein, "spunbonded fiber" refers to molten thermoplastic. Extrudable materials as filaments from the pores of multiple, usually circular, spinnerets U.S. Pat.No. 4,340,563 to Appel et al. And U.S. Pat. No. 3,692,618; Matsuki et al. U.S. Pat.No. 3,802,817; Kinney U.S. Pat.No. 3,338,9 Nos. 92 and 3,341,394; Hartman U.S. Pat.No. 3,502,763; and Dobo et al. According to Patent 3,542,615, the diameter of the extruded filament is rapidly reduced. Means a small diameter fiber formed by Generally spunbond Fibers do not look bad when they are deposited on a collection surface. general The spunbond fiber is continuous and has an average diameter (at least 10 samples Is greater than 7 microns, more specifically about 10 to 20 microns. Fibers are described in U.S. Pat. Nos. 5,277,976; Hills, U.S. Pat.No. 5,466,410; and Largman et al., 5,069,970. And 5,057,368.   As used herein, "meltblown fiber" refers to a molten thermoplastic material. Thread or filament melted through multiple fine, usually circular, die pores As a pump into a high speed, usually hot gas (eg, air) stream for converging. Means a fiber formed by exiting. This astringent gas stream Attenuate the filaments of molten thermoplastic material and reduce their diameter Reduce to about fiber diameter. The melt blown fiber is then Carried by the stream, deposited on a collection surface and randomly distributed Formed on a web of mebble fiber. Such a process, for example, n et al., U.S. Pat. No. 3,849,241. Melt blown fiber is continuous Or a microfiber that can be discontinuous, typically 10 micron Smaller average diameter and generally looks good when deposited on a collection surface Is not possible.   As used herein, "coform" refers to at least one coform. Place the melt blow die head near the chute and form the web while forming the web. Process, such as adding other materials to the web through a mute. these Other materials are pulp, superabsorbent granules, for example, where the fibers can be short fiber length. Fiber, natural polymer (eg, rayon or cotton fiber), and / or synthetic Can be a polymer (eg, polypropylene or polyester) fiber it can. The co-forming process is described in Lau, U.S. Pat.No. 4,818,464 and Anderson et al. No. 4,100,324. The web produced by the simultaneous forming process It is generally called a co-formed material.   "Polymer" as used herein is not intended to be limiting; To homopolymers such as block, graft, random, and alternating copolymers. Such copolymers, terpolymers, and the like, and mixtures and variations thereof. Further Unless otherwise specified, "polymer" includes all possible geometric forms of the molecule . These forms include, but are not limited to, isotactic, syndiotactic Including tics and random symmetries.   As used herein, "machine direction" or MD refers to the production of a fabric. Means the length of the fabric in the same direction. "Cross machine direction" or CD Means the width of the fabric, i.e. the direction generally perpendicular to the MD.   As used herein, "single component" fiber refers to the use of only one polymer. Refers to fibers formed by one or more extruders. this is, One port with a small amount of additives for coloring, antistatic properties, lubrication, hydrophilicity, etc. It is not meant to exclude fibers formed by rimmers. For example, These additives, such as titanium dioxide for coloring, are generally present in amounts of more than 5% by weight. It is present in small amounts, more typically about 2% by weight.   As used herein, "composite fibers" are extruded from separate extruders. At least two polymers spun together to form one fiber Is a fiber formed from these fibers. Composite fibers are multi-component or bi-component fibers Sometimes called. The polymers are usually different from each other, but the conjugate fibers are Could be fiber. These polymers have a substantially uniform cross section of the composite fiber. Arranged in separate zones occupying a fixed position, continuously along the length of the composite fiber It is growing. The form of such composite fibers is, for example, that one polymer is Sheath / core arrangement, such as surrounded by a It can also be a side-by-side arrangement, a pie arrangement, or an "underwater island" arrangement. For composite fiber Seki No. 5,108,820 to Kaneko et al., And US Pat. No. 4,795,668 to Krueger et al. No. 5,540,992 to Marcher et al. And U.S. Pat.No. 5,336,552 to Strack et al. Issue. Bicomponent fibers are also disclosed in U.S. Patent No. 5,382,400 to Pike et al. And uses different expansion and contraction rates of two (or more) polymers And can be used to create folds in the fiber. Shirred The fibers can be obtained either by mechanical means or by the method of German patent DT 25 13 251 A1. It can also be produced by process. For bicomponent fiber, the polymer is 75 A ratio of / 25, 50/50, 25/75, or any other desired ratio can be present You. Fiber is a US feature of Hogle et al. Describing an unusual fiber shape. No. 5,277,976; Hills, U.S. Pat.No. 5,466,410; and Largman et al., 5,069,97. It can also have a shape as disclosed in No. 0 and 5,057,368.   As used herein, "two-component fiber" refers to a mixture from the same extruder. Fiber formed from at least two polymers extruded as You. For the “mixture”, see the next section. The two-component fiber is Various polymers arranged in distinct zones occupying a substantially constant location in the cross section It has no components, and these various polymers are usually Is not continuous, but instead usually starts randomly and ends randomly Forms ril or protofibrils. A two-component fiber is a multi-component fiber. Sometimes called ba. Fibers of this general type are available, for example, from Gessner These are disclosed in Patent Nos. 5,108,827 and 5,294,482. 2 component and 2 composition About IvaPolymer Blends and Composites by John A. Manson and Leshe H . Sperhng, copyright 1976 by Plenum Press, a division of Plenum Publishi ng Corporation of New York, IBSN 0-306-30831-2, at pages 273 through 277 See also   As used herein, a “blend” (blend) is a mixture of two or more “Mixture” (alloy) refers to the mixing of components Can not, but refers to a subclass of mixtures where they are compatibilized . "Mixability" and "immiscibility" mean that the value of the free energy of mixing is negative and positive, respectively. so Defined as a mixture. In addition, "compatibility" means mixing to make a mixture. It is defined as the process of changing the interfacial properties of a polymer that cannot.   "Bonded Carded Web" is a combination unit or carding Made from staple fiber sent through a unit, this unit Fiber in a machine direction and oriented roughly in the machine direction. Forming a fibrous nonwoven web. These fibers are usually Purchased on a bale placed in a picker that separates the fiber prior to the cut . After being formed into a web, it can be formed by one or more of several known bonding methods. Combined by the top. One such bonding method is powder bonding, which is applied to powder. Disperse the adhesive throughout the web and usually heat the web and adhesive with hot air Activate by doing. Another suitable bonding method is to use a heated calendar Using a file or an ultrasonic coupling device, usually in a localized coupling pattern. Is a pattern join that joins the bars together, but if so desired The element can be bonded over its entire surface. Especially two-component staple file Another suitable and known method of connection when using a bus is a vent connection.   "Dry deposition" (airlaying) is a known method of forming a fibrous nonwoven layer. Process. In dry deposition processes, about 6 to about 19 millimeters (mm ), A bundle of small fibers having a typical length in the range And deposited on a forming screen, usually with the aid of a vacuum source. Landa The fibers deposited on the system are exchanged using, for example, hot air or spray adhesive. Be combined.   "Personal care products" include diapers, discipline pants, absorbent under pants, Mean incontinence products, bandages, and feminine hygiene products.                                 Test method Material caliper (thickness)  The caliper of the material is a measure of thickness and is a Starret type It is measured at 0.05 psi (in millimeters) using a bulk tester.   density  The density of the material is determined by the weight per unit area of the sample (per square meter) Grams; gsm) is the bulk of the sample at 68.9 Pascals (millimeters; mm) and divide the quotient by 0.001 to get the value in grams per cubic centimeter (g / cc). A total of three samples are evaluated and averaged to a density value.   Absorption structure wicking time and horizontal liquid bundle  About 1 inch (2.5cm) x 8 inch (20c m) Place a sample strip of the material horizontally and place the sample at the beginning of the test. When positioning the strip in the liquid bath, the sample strip Ensure complete contact. The relative humidity during the evaluation should be maintained at about 90 to about 98% is there. Place the sample strip against a large (effectively infinite) volume of liquid Stopwatch as soon as the edges of the sample strip touch the surface of the solution. Start.   The horizontal distance of the liquid front moving along the sample strip and the sample The weight of liquid absorbed by the tap is recorded at various times. Is the beginning of evaluation About half an inch (1.3 cm), 1 inch, 2 inches (5 cm), and 3 inches (7.6 cm) The weight of liquid taken up by the sample strip is also determined from the data.   The liquids used in this test simulated the viscoelastic and other properties of menstrual secretions. Liquid that is designed to be tested in accordance with the procedures described in the following test procedure. It is made.   Flat system test procedure Purpose: To analyze the soil length, saturation capacity, and fluid load of system components       Thus, it is to determine the fluid treatment characteristics of various absorbent systems. Equipment: Hourglass-shaped acrylic board weighing approximately 330 grams (with 0.25 inch hole in center)       Syringe; 1/8 inner diameter Tygon tubing; pipette pump       Menstrual secretion simulant; laboratory balance (accurate to 0.00 g). Preparation: Cut the components into the desired shape (currently for suction and distribution layers)       1.5 inch x 5.5 inch, transfer delay layer 1.75 inch x 5.5 inch       In the case of the side layer, the hourglass shape is 200 mm long).         2. Mark the 5.5-inch layer in 1.1-inch sections and strike       Center the lip on the surrounding layer and cut the section corresponding to the mark on the strip.       Mark the surrounding layer with a piece of the solution.       3. Weigh each component and record its weight.       4. While aligning the marked sections, combine the individual components with the desired component system.     Assemble into Label one end as top.       5. Fill the Syringe with Menstrual Simulant, Tygon Tubin     Attach to the syringe.       6. Place the syringe in the pipette pump.       7. Program the pump (now using a 30cc syringe,     Dispense 10 ml of simulant per hour).       8. Place the open end of the tubing in the beaker and allow all air     Discharged from tubing, simulant begins to emerge from tubing discharge end     Turn on the pump and fill the tubing until it stops.       9. Place the component system under test near the pipette pump, 25 gsm, 10 BCW     Place a 2 inch x 6 inch (almost) piece of     Center the crill plate on top of the system.       Ten. Insert the free end of one tubing into the hole in the acrylic plate. Remaining     Repeat for the system under test.       11． Start the pipette pump and start excretion.       12． After elimination period, remove tubing and acrylic plate     . Carefully remove the BCW (without removing the layers below it) and destroy it     I do.       13. Photograph and print the component systems and layers.       14. Weigh each layer individually and record its weight.       15． Starting from the edge labeled Top, the first marked section     Sections are cut and weighed and the weight recorded. Remaining sections & layers     Repeat for       16． Measure and record the soil length for each layer.       17． Enter data into spreadsheets for graphing and analysis     You. The menstrual simulant used in this study was made according to the following procedure.   In this case, blood, which is pig blood without fibrin, is 3,000 rpm for 30 minutes. And centrifuged. If effective, use other methods or speed and time No problem. Plasma is separated and stored separately, and the removed buffy coat is discarded and red blood The spheres were packed and stored separately.   In this case, the oversized egg is separated and the yolk and egg band are discarded to leave the egg white. Was. Strain the egg white through a 1000 micron nylon mesh for about 3 minutes Therefore, it was separated into a thin part and a thick part, and the thin part was discarded. At least viscosity You can use a different mesh size if required, or It should be understood that the method or method can be varied. Strained by mesh Collect the thick part of the egg white and pull it into a 60cc syringe, which can be programmed Placed on a functioning syringe pump to drain or refill the contents for 5 minutes. And homogenized. In this case, the syringe pump rate should be about 100 ml / And control the amount of homogenization by making the tubing inside diameter about 0.12 inches did. Thick egg white has a viscosity of 150 seconds after homogenization^-1At least 20 cm pore It is placed in a centrifuge and rotated to about 3000 rp for about 10 minutes. Remove residue and air bubbles with m, but what effective way to remove residue and air bubbles You can use the law.   After centrifugation, a thick homogenized egg white containing egg mucin is used with a syringe. To a 300 cc Fenwal® transfer pack. Transfer 60cc pig plasma Was added to the bottle. Clamp the transfer pack, remove all air bubbles and remove Stomache r Place in lab blender and mix at normal (or moderate) speed for about 2 minutes did. Then remove the transfer pack from the blender and add 60cc of pig red blood cells. With a manual kneader for about 2 minutes or until the contents appear homogeneous. The contents were mixed. The red blood cell volume ratio (hematocrit) of the final mixture is the red blood cell content Is about 30% by weight, but generally made in accordance with this example Should be in the range of at least 28-32% by weight. The amount of egg white was about 40% by weight.   The components and equipment used to prepare this artificial menstrual secretion are readily available. It can be. The following is a list of sources of used items. Other distributors can be used as long as they are exactly the same.   Blood (Pig): 17567 Leamstown, PA, Stevens Road 4 49, Cocalico Biologicals, Inc., (717) 336-1990.   Fenwal® transfer pack container, 300 ml, with coupler, code 4R2014: Baxter Healthcare Corporation, Fenwal, 60015 Deerfield, Illinois  Division.   Harvard Apparatus Programmable Syringe Pump, Model # 55-4143: Masa Harvard Apparatus, 01760 South Natick, Massachusetts.   Stomacher 400 laboratory blender, model #BA 7021, serial number 31968: Union Kingdom, England, London, Seward Medical.   1000 micron mesh, item # CMN-1000-B: 33014-0650 Myr, FL Mirakes, PO Box 4650, Small Parts, Inc., 1-800-220-4242.   Hemata Stat-II device for measuring red blood cell volume ratio, serial number 1194Z03127: Florida State 32714 Altamont Springs, Rayner Drive 1096, Separation Tech nology, Inc.   Pore size distribution  The pore size distribution of the material is described in Textile Research Journal, Vol. Apparatus based on the porous plate method used by Burgeni and Kapur on page 356 of 37 (1967) Measure using With this device, sample materials at various pressures can be Can be correlated to the radius of the pores in a given material. You. This process is based on Chattterjee's Absorbency, Elsevier Science Publisher s, B.V. 1985, pp 36-40.   The deformation system used was interfaced with a programmable stepper motor. Stage and a personal computer Electronic balance. The control program automatically moves the stage to the desired height. And acquire data at the specified sampling rate until equilibrium is reached. And move to the next calculated height. Plexiglas® support structure To maintain the material / porous plate in a horizontal, upright position throughout the entire test. This The controllable parameters of the method are: sampling rate, balance criterion, and measured Pore size range. The data for these tested materials is Collected using mineral oil (0.82 g / cc, 32 dynes-cm, 0 ° fluid contact angle) as a body Was. At the beginning of each test the sample material is placed on a porous plate and then the porous plate structure Saturate the sample completely by lowering The pore size depends on the pressure ( That is, the decision is made by collecting a large amount of data while increasing the stage height). Set. If the change is less than 0.05 grams / minute after 4 intervals of 60 seconds each, The balance has been reached.   The data show the incremental change in mass divided by the pore size on the x-axis and the total change in mass. By plotting the activation on the y-axis, the% pore volume versus pore radius (microns) and And presented.                                Detailed description   The present invention provides a capillary pore size and size ideally suited for wicking viscoelastic fluids. Consisting of stabilized, highly wettable fiber providing a degree of wettability Class of material. For stabilization, use liquid binder and binder fiber. By heat or by any other method known in the art. Can be achieved. When exposed to viscoelastic fluids or fluid simulants, these Material improved with respect to wicking distance, wicking speed, and amount of fluid moving Exhibits fluid distribution performance. The pore properties, whether dry or wet, When swollen or crushed when wet with an elastic fluid simulant, preferably about Stable at a minimum of less than 25%, more specifically 20%, and even more specifically 15% is there. All of these characteristics are targeted areas of personal care products such as women's pads Critical for the overall performance of the deployed distribution material.   Using a 2 inch diameter foot and a compression gauge at 0.02 psi, dry, And after saturating with the menstrual secretion simulant, The caliper (unit: inch) is shown below.  The fluid distribution capacity should be within the appropriate capillary Requires a hole structure. Using several technology approaches to obtain advantageous performance A distribution material exhibiting the essential material properties required for the development was developed. Examples of these materials are given below. Shown below.                                   Example 1   The distribution material in this example was about 80% by weight fluff pulp (Rayonier R-9401 -Cellular Southern softwood roll pulp) and about 20% by weight Danaklon short Sheath with cut (5mm) 2.2 denier polyethylene / polypropylene (PE / PP) / Conjugated core fiber | S2 / B2 / 39 finish You. The finish is advertised to remain hydrophilic after repeated excretion. This material was produced at three different densities. That is, to a basis weight of about 100 to 250 gsm And 0.05 g / cc, 0.1 g / cc and 0.2 g / cc. 0.05 g / at a basis weight of about 125 gsm Material examples of cc, 0.1 g / cc, and 0.2 g / cc are shown for comparison.   The material is tested according to the Horizontal Wicking Test and a 1 inch x 8 inch sample is A total of three trials were repeated. Table 1 shows the results. However, keep the weight Fluid in grams, time is expressed in seconds, and DNR is "not reached" (d id not reach).   The fluff pulp was from Rayonier Inc. of Jessup, Georgia. Ba Inderfiber is Denaklo of KD-6800 Balde, Engdraghetto 22, Denmark n / s, these are 2.2 denier conjugated PE / PP sheets cut to 5 mm length / Core fiber.   The distribution material was produced by a Dan-Web dry deposition process. Produce this material However, any satisfactory procedure known in the art can be used. Some samples were tested for pore volume distribution. The results are shown in FIGS. 1, 2, and 3. Show. These figures show 0.05g / cc repeat 1, repeat 2 and 0.1g / cc repeat. 2 shows the pore volume distribution for No. 2. The results show that the lower the density, the smaller the pore size It can be seen that the size increases and the wicking performance is greatly improved. Example 2   The distribution material in this example is a polystyrene available from Chisso Chemical Co., Japan. Bodies made of 100% by weight eccentric sheath / core composite fiber of ethylene and polypropylene Undead card dead web. These fibers are known as HR6 Finish was applied. The following table shows the 0.028g / cc sample and 0.068g / cc sample 0.028 g / cc sample with fiber oriented in carding process Shows the wicking results of In the table below, distances are expressed in inches and weights are The time is expressed in minutes and seconds as indicated in the table. Fine The pore volume distribution was tested and the results are shown in FIGS. 4, 5, and 6, respectively. . The data show that pores with pore volumes in the range of about 200 to %, Indicating that better wicking results have been achieved.   The distribution material of the present invention can produce artificial menstrual discharge within about 1.5 minutes by a horizontal wicking test. It should be able to successfully wick up to one inch (2.5 cm). This performance base Materials that meet the criteria generally have a diameter of about 80-400 microns and a density of about 0.15 g. / cc, high percentage of pores (typically more than 50%, more specifically more than 60%, (Specifically, 70% or more). Pore surface Increasing the wettability increases the wicking drive force, and has a small resistance with high resistance It is believed that the movement of the liquid in the pores can be maintained.   The personal care product system of the present invention provides control over areas that concentrate along the length of the pad It is designed to store the finished liquid. Rice functional behavior for women This is highly desirable because it prevents lateral leakage, which is the main form of pad leakage. this Storage behavior is achieved by a layered absorbent design comprising three or more layers. It is. The bottommost layer, i.e. the layer furthest from the wearer, is the other layer above it X-y dimensions greater than This makes the topography design in FIG. The center lifts up as shown, collecting menstrual discharge from the wearer on a narrow strip. Will increase the likelihood. FIG. 8 shows the bottom layer 1, top or 2 shows a multilayer design with a suction layer 3 and an intermediate layer 2.   The pores in each material layer, coupled with the layer geometry, are specific to the absorbent system. Designed to produce a controlled charging strategy. Second or middle layer Average pore size is smaller than the average pore size in both the top and bottom layers. Please. The average pore size of the bottom layer is larger than the middle layer, which will It is believed that the fluid is prevented from being transferred to the bottom layer at an earlier time. this It is thought that the fluid in the widest bottom layer starts to suck up to the edge and causes a lateral leak As such, reducing fluid in the bottom layer reduces leakage Is critical. In addition, each layer has the required microscopic integrity required for pad formation. In addition to maintaining the intended pore size relationship over the entire period of its use. It has been stabilized to assist in holding.   In an alternative embodiment, the bottom layer is embossed such as a vertical line Or densified sections, which are If the transfer height is high and the transfer from the center layer to the bottom layer occurs, Helps to keep the fluid in the center of the bottom layer.   The top layer, which is also called the suction layer, is the layer closest to the wearer, and is about 0.02-0.06 g / cc. It has a low density in the range and a basis weight of about 25 to about 125 gsm. This allows the pore size Sizes range from 80 microns to 1000 microns in diameter, these are viscous menstrual flow Well suited for inhaling the body.   The top or suction layer can be produced by various techniques. Limit These examples include, but are not limited to, a bonded fiber of 100% by weight synthetic fiber. Dry web or dry deposition mixing of cellulose and synthetic binder fiber Body included.   The layers below the top layer are designed to distribute and retain the fluid, and therefore It is called a distribution / retention layer, or strip. This layer can range from about 0.1 g / cc to about 0.2 g / cc. It has a surrounding density, but must be denser than the suction layer. like this Helps to desorb from suction layer into distribution / retention layer by increasing density It is thought to be. The distribution / retention layer has a basis weight of about 175 gsm to about 300 gsm and a weight of about 40 gsm. -500 μm diameter average pore size. Suitable for this layer The material consists of a high level (80-95% by weight) of cellulose fibers and a synthetic binder fiber. And dry deposited materials mixed with fiber (5-20% by weight). Performs this distribution function if the fiber making the layers is highly wettable Stabilize the web.   The bottom or padding layer has a lower density than the distribution / retention layer. Its main function is to facilitate the fit to the body, give the wearer comfort, and To provide additional coverage. Its density is about 0.03g / cc to about 0.10g / cc The distribution / retention layer does not easily desorb because it extends over Will remain within. In some designs, the pad molding layer may be 80-90% by weight. Mixing cellulose pulp fluff with 10-20% by weight synthetic binder fiber The body can be a dry deposition web. Its main purpose is to mold the pad. The layer is distributed / retained, especially when the distribution / retention strip is highly loaded with liquid. Liquid can be received from the carrier strip. This pad molding layer is line, sine Embossed patterns such as waves, acorns, etc. may also be included.   An additional aspect of the present invention is the pad molding feature, in which the top two layers (suction layer and (Distribution / retention layer), preferably in the center, with a longitudinal (longitudinal) slit. So that they can bend when the bottom layers begin to undergo lateral compression That is. This allows the body, which is also critical to reduce leakage, Fits tighter.   Although the present invention has been described as having "layers", it produces a separate material and It is understood that this does not mean that they must be laminated to each other. I want to. The term "layer" refers to properties therein that satisfy the functions and physical properties of the present invention. It is also meant to include a single monolithic material modified accordingly. Follow And produced in a single step, for example from top to bottom It is understood that materials whose properties have been changed to satisfy the requirements are also within the scope of the claims. I want to be. Such materials are referred to as Agent Docket No. 14002 It is disclosed in a patent application filed at the same time as the application.   The present invention provides a variety of shapes to provide functional benefits to a wide range of product shapes. Can be changed. 9, 10, 11, and 12 show very thin product shapes. Figure 3 shows an example of a component array aimed at designing the type for a preferred user. FIG. Shows an example of a cover material that comes into contact with the wearer, at the center of this cover The width is about 80 mm, the width at the maximum is about 90 mm, and the length is about 238 mm. FIG. Indicates the suction layer, the width is about 37mm, the length is 218mm, and the center slit Is about 101 mm in length. FIG. 11 shows a distribution / retention layer of the same dimensions as the suction layer. ing. FIG. 12 has the same shape as the cover layer as a whole, The width of the bottom layer is 60 mm, and the width at the maximum point is 70 mm. are doing. The bottom layer of FIG. 12 is centered on the pad and has different lengths at equal intervals It has five embossed lines. 10, 11 and 12 Are further shown in Table 1.   The following examples have been produced to demonstrate the distribution characteristics of the present invention.                                   Example 3   From pulp fluff and synthetic binder fiber according to dry deposition process Produced non-woven fabric. Alternative fluff is from Kimberly-Clark Corporation 100% softwood, Coosa 054, available from Weyerhaeuser NB416 or NF405, Rayonier 9401, or similar properties Includes other fluffs. Synthetic binder fabric from 1.8 denier It was Hoechst-Celanese T-255 (H-CT-255) with 3 denier. Kind for complex Any other binder that provides similar binding properties can be used.   The basis weight and density were as shown in Table 1.                                   Table 1 Example 4   In this two-layer design shown in FIG. It is at a density that allows the body to suck, dispense, and retain. Bottom layer, ie pad molding Layer 5 has a lower density, so that the top strip is highly saturated. Transfer of fluid into itself is prohibited. This design has some Saves the thickness desired by The. The characteristics of the layer in the example shown in FIG. It is. Example 5   Yet another version of the absorbent system of the present invention is intended for users who prefer thick product shapes. Products of that type can also be provided for FIG. 14 shows such a type 4 The layer design is shown, with the suction layer 6 above the distribution / retention layer 7 and the distribution / retention layer 7 Is on the transfer delay strip 8 and finally there is a pad molding layer 9.   In this example shown in FIG. 14, the suction layer 6 provides a suction function, while the next layer 7 A higher density distribution / retention strip. The third layer 8 is the distribution holding strip 7 Fluid transfer to a wider and thicker pad molding layer 9 which is less denser and therefore wider. Delay. The pad molding layer 9 is required to provide comfort and thickness for product shapes in this range. Also provide a request. By preventing fluid from entering the widest layer, The chance of wicking to the edge and causing a leak is reduced. Pad molding layer 9 is the product life When liquid penetrates through the transfer delay layer 8 at a later time, the liquid sucks up sideways. An embossed pattern can be provided to prevent this.   These three examples are intended to help illustrate the present invention, which It is not limited only to these examples. The present invention absorbs liquid to prevent side leakage. Includes an absorbent article that maintains a controlled placement centered on the absorbent article.   The test data below shows this controlled filling for a range of example absorbent systems. A full pattern is shown. In the following description, “top layer” refers to the suction layer Yes, the “central layer” is the distribution / retention layer, and the “bottom layer” is the package. It is a molding layer. The test procedure comprises assembling the absorbent system components and 10 ml of menstrual secretion simulant as detailed in the "Test Methods" section And soiled them at 10 ml / hour.   Two system designs were tested for fluid loading. The results are shown in FIG. Shown in rough. System I is shown on the left and system II is shown on the right. In FIG. Where the first bar of each system is the top layer and the second bar is the distribution / retention layer And the third bar is the pad molding layer. The scale on the left is a liquid roady Is expressed in grams. Fluid loading systems are described in detail above. Also made from Coosa pulp and synthetic fiber as outlined below. In any of the following tables Even so, the "hourglass" shape is the bottom layer of such shape, the other layers It is a rectangle. Details of fluid loading system    The bar in FIG. 15 shows the average data from the raw data of the section that absorbed the fluid. It represents. The raw data for the graph of FIG. 15 is as follows. Fluid loading data  The soil size ratio is useful for describing the components and systems of the present invention. Dirt The size ratio is a value obtained by dividing the width (w) of the dirt after the dirt reaches equilibrium by the length (l) of the dirt. Is defined as The pad molding layer and the distribution / retention layer are equal to 0.5 or Below that, a more specific dirt size ratio of 0.375 and even more specifically 0.1875 Must have. 8.7 inches long as pad molding layer, and distribution / A sample having a length of 6 inches was tested as a retaining layer and has these ratios. It should be understood that longer or shorter products are within the scope of the invention. The following is a detailed description of each layer of the system tested, with data for It has been described. System I is the same as the preceding system I. Details of the dirt length system Soil length and ratio dataThe soil width was 1.5 "for all samples.   In addition to the soil length ratio, the saturation profile in the central or distribution / retention layer is important It is. The saturation profile refers to the position of the liquid throughout the length of the layer. To determine the saturation profile, the distribution / retention strips were Divided into sections of the same length, The ratio of (C + D) / (A + F) can be obtained. This is approximately within the center 1/3 of the product Corresponds to the amount of liquid (in grams) divided by the sum of the liquid in each end 1/6 of the product I do. If the distribution / retention layer being tested is not rectangular as in the above example, The product should be split so that the dry weights of the components are approximately the same. The saturation of the present invention The profile ratio is at most about 4, more particularly less than about 2, and even more particularly Must be about 1.6 or less, even more specifically less than 1.4 No (use 6 sections). Of the material used to test the saturation profile An example and the results of this test are shown below. Details of the saturation profile system       Middle layer saturation profile  Designs for thick products were also tested for saturation profiles. Design information and The sum ratio data is as follows.   Example 5 above shows the details of a women's care pad with a transfer delay function. . In Example 5, the transfer delay material has a lower density than the layers below it. Thus delaying the transfer of liquid to the bottom layer. The density of the material is Although one method of delaying fluid transfer, other material attributes may also delay fluid transfer. Can contribute to delay. Other material candidates that are effective in causing delay include span Nonwovens such as bond, conjugate spunbond, or bonded carded web including. The use of perforated film to provide this function to the absorbent system Can also be.   When using either nonwovens or films as transfer delay materials, they are Preferably, it is not wettable. Spunbond, conjugate spunbond, and fill In the case of a memory material, the structure used in the following examples is approximately "uniform". Paraphrase If they have a lower density than the layers below them in the absorbent system design You don't need to be. They flow after the layers above them begin to become very highly saturated. It works by providing a partially occluded hydrophobic layer that starts transferring the body.   In the example using a bonded carded web, the web is hydrophobic In some cases the transfer delay works best. However, when using this material, the density And hydrophobicity both play a role in delaying transfer.   The following example illustrates six thin absorbent systems and a variety of transfer delay materials. And seven thick absorbent systems. According to test data, these materials A better saturation profile ratio can be achieved by using In some cases, better soil length ratio compared to original design based on density / pore gradient Can be achieved.   The test data uses specific materials, but other materials that are hydrophobic or Materials that combine lower density and hydrophobicity than lower materials also have transfer delays Function can be given.   An additional point about this data is that the distribution UpSixIs divided into equivalent sections, which are used in the claims. This is the method used. The following data is stripped as follows:FiveMinute The excretion point is not exactly on the line dividing the two sections. The saturation profile ratio can be calculated from both sets of data. 5 sections If using a saturation section, the saturation profile will depend on the amount of liquid in the central section. Calculated as the ratio of the sum of the end sections to the end section.   Thin saturation profile with transfer delay layerTop layer saturation profile (g / g) Thin dirt length ratio using transfer delay layer Configuration of all thin systems The central transfer delay layer of the system is as described above; System 1: 27gsm (0.8osy), 2.2 denier polypropylene spunbond; System 2: 34 gsm (1.0 osy), 2.2 denier polypropylene spunbond; System 3: 1.0 osy, 2.0 denier polypropylene / polyethylene side-by-side conjugated fiber             Fiber; System 4: 51gsm (1.5osy), 2.0 denier polypropylene / polyethylene             Side-by-side composite fiber; System 5: 1.0 mil perforated polyethylene film; System 6: 50gsm bonded carded web.                     Thick saturation profile with transfer delay layerTop layer saturation profile (g / g)Thick soil length ratio using transfer delay layer   All thick system configurations The central transfer delay layer of the system is as described above; System 1: 0.8osy, 2.2 denier polypropylene spunbond; System 2: 1.0osy, 2.2 denier polypropylene spunbond; System 3: 1.0osy, 2.0 denier polypropylene / polyethylene composite fiber; System 4: 1.5osy, 2.0 denier polypropylene / polyethylene composite fiber; System 5: 1.0 mil perforated polyethylene film; System 6: 50gsm bonded carded web. System 7: 100gsm, 0.03g / cc, Weyerhaeus made according to dry deposition process e Mixing of NB416 pulp with H-CT-255 binder fiber in 50/50 ratio.   Embodiments of personal care products encompassed by the present invention include bodyside liners, dispensing / maintenance. It has a carrier layer, a transfer delay layer, a pad molding layer or a secondary absorbent layer, and a back sheet. Includes women's hygiene pads. These materials are available in various forms, including adhesive and mechanical. It can be held together by means and by thermal coupling means.   The liner is a nonwoven fabric or a laminate of nonwoven fabric and film. Can be a nate. If a laminate, the liner is Drilling must be done in such a way that it can be done. Laminate like this Nonwovens that are satisfactory for the web are air-bonded conjugated polypropylene / low density Concentric 6 to 10 denier fiber core / sheath with a 50/50 ratio of ethylene Made of basin and finished with wettability. A suitable nonwoven is about 0.03 g / It can have a density of cc and a basis weight of about 0.7 osy (24 gsm). Such a la Suitable films for the minates are commercially available from Edison Plastics. The film has a melt index (melt viscosity) of 5.5 and 0.923. 94% Rexene® low density polyethylene having a density of g / cc and Ampace Contains 6% t® titanium dioxide concentrate. Films and nonwovens For example, having a thermal bond pattern such that the bond area is 8-12%, Can be perforated to obtain about 27% open area.   The liner layer should be approximately 5 gsm additional amount of National Starch NS34-5610 or equivalent. Such an adhesive can be used to join the distribution / retention layer. Of course, what No adhesive or other bonding method should block the flow of fluid between the layers.   The distribution / retention layer can be made by a dry deposition process, for example, 90% We yerhaeuser's NB-416 or NF-405 Southern Softwood Pulp with 10% Hoechst- Celanese T-255 polyethylene terephthalate / copolyolefin 50/50 ratio And a concentric 2.8 denier fiber. Minute The basis weight of the layer can be about 250 gsm and the density can be about 0.14 g / cc. Distribution / retention layer To improve the body adaptability by creating an upward arch during use of the product As described above, a slit can be formed in the vertical direction. These slits are continuous Can be intermittent or intermittent, and Can be.   Suitable transfer delay layers are, for example, polyolefin fibers such as polypropylene. Made from bar by spunbond process (2.7 denier fiber, about 0.8o sy basis weight) fabric. This layer is a distribution layer in the xy plane And if the fluid moves over the edge of the distribution / retention layer If so, it can have a color other than white to inform the wearer. This One of the colors like can be rose color to give the product aesthetic appeal You.   Fluid retention in the distribution / retention layer is maximized and / or the product has a compressive force , The transfer delay layer moves the fluid in the Z direction (downward) toward the pad molding layer Will be able to do that.   The pad molding layer, that is, the secondary absorbent layer, is made of the same material and in the same ratio as the distribution layer. Can be made, but with a lower density, e.g. on the order of 0.08 g / cc, and e.g. 17 Use a lower basis weight, such as 5 gsm. A suitable padding layer allows fluid to escape laterally Instead, it serves as a channel that can enhance adaptability to the body, It has a vertical emboss pattern that can be guided in the direction.   An alternative and also suitable padding layer may have two pulp layers. Can be. One layer is 100% Coosa 0054, Weyerhaeuser NB-416 or NF-4 05, or Southernus like georgia Pacific Golden Isles grade 4821 pulp Has 500gsm of footwood, can be about 200mm in length and about 60-70mm in width And a sinusoidal pattern, for example as shown in FIG. 16, or another longitudinal emboss Can have a pattern. Another layer has 400gsm of the same material and has a length About 160mm, width about 45mm, and acorn or other embossed spa Can have turns.   The pad molding layer is less than about 15 gsm of National Starch NS34-5610. With such an adhesive, it is possible to adhere to the backing layer, that is, the baffle layer.   The backing or baffle of the product should be a rose color, such as XP746A from Edison Plastic. 1 mil low-density polyethylene film, such as micro-embossed film It can be made with film. No matter what other color you choose for backing No problem.   For further details of the processes and equipment used to produce the present invention See pending application from the same applicant as this application, Attorney Docket No. 13817. I want to be.   As mentioned above, all materials are embossed, preferably from the bodyside liner side. can do. Embossing only embosses the body side liner It may be light enough or include other layers. Embossed pattern is made of material To maximize the compactness of the material, and thereby the suction and flow of fluid throughout the product It can be selected to enhance dispersion and distribute fluid from the front axis to the rear axis. Embossing gives the wearer a visual indication that the product is nearing capacity and should be discarded Can be informed and can also be used to provide aesthetic benefits . Examples of suitable emboss patterns are shown in the drawings. Figure 16 shows a sine wave putter FIG. 17 shows an emboss pattern for a personal care product called a shell pattern. This is an embossing pattern for a personal care product called ン.   Women's personal care products such as women's hygiene products having the attributes required in the present invention It is clear that the product system spreads excrement very well. This spread Allows the entire product to be used more efficiently before leaks occur, thereby Should give the wearer excellent comfort.   Although only a few embodiments of the present invention have been described in detail, those skilled in the art will appreciate that Without departing from the novel teachings and advantages of the present invention, examples have been set forth. It can be easily understood that many modifications are possible within the embodiment. Follow Accordingly, all of these changes are included within the scope of the present invention which is limited by the claims. Is intended to be In the claims, the means plus the function claim The structure described as performing the stated function, and its structural equivalents, It is intended to cover equivalent structures as well. For example, stick wooden parts together Sa The nail uses a cylindrical surface and the screw uses a helical surface, so It cannot be a structural equivalent, but when it comes to fastening wooden parts The nail and the screw may have an equivalent structure.

────────────────────────────────────────────────── ─── Continuation of front page    (31) Priority claim number 09 / 047,778 (32) Priority date March 25, 1998 (March 25, 1998) (33) Priority country United States (US) (31) Priority claim number 60 / 079,657 (32) Priority date March 27, 1998 (March 27, 1998) (33) Priority country United States (US) (31) Priority claim number 09 / 072,172 (32) Priority date May 5, 1998 (5.5. 1998) (33) Priority country United States (US) (81) Designated country EP (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, I T, LU, MC, NL, PT, SE), OA (BF, BJ , CF, CG, CI, CM, GA, GN, ML, MR, NE, SN, TD, TG), AP (GH, GM, KE, L S, MW, SD, SZ, UG, ZW), EA (AM, AZ , BY, KG, KZ, MD, RU, TJ, TM), AL , AM, AT, AU, AZ, BA, BB, BG, BR, BY, CA, CH, CN, CU, CZ, DE, DK, E E, ES, FI, GB, GE, GH, GM, GW, HU , ID, IL, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, M D, MG, MK, MN, MW, MX, NO, NZ, PL , PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, UA, UG, UZ, V N, YU, ZW (72) Inventor Dale Nick Rebecca Lin             United States Wisconsin             54956 Nina North Oakwood             Avenue 9027 (72) Hetzler Connie Lin             United States New Jersey             07871 Sparta Crossing Border             ー Ridge 20 (72) Inventor Jogenson Thomas Patrick             United States Wisconsin             54956 Nina Tular Road 1224 (72) Inventor Mace Tamara Lee             United States Georgia 30340             Doraville Corquitt Drive             3388 (72) Inventor Matera David Michael             United States Georgia 30076             Roswell Calibre Creek Park             Way 4018 (72) Inventor Nelson Jane Bramsteed             United States Wisconsin             54956 Nina Brentwood Dry             Vs 331 (72) Inventor Soya Lawrence Howell             United States Georgia 30075             Roswell Spearfield Terrace               245 (72) Inventor Schmidt Forest Alexander               Manfred             United States Wisconsin             54911 Appleton North Superior             A Street 1404 (72) Inventor Solebo Heather Ann             United States Wisconsin             54914 Appleton Glen Park             Drive 2922 (72) Inventor Spears James Olin             United States Georgia 30102             Acworth Heritage Cove 1505 (72) Inventor Walker Laura Jean             United States Wisconsin             54914 Appleton Claudeview               Coat 2126 (72) Inventor Aba Rodney Lawrence             United States Wisconsin             54904-9508 Oshkosh Shangri             La Point 3645 (72) Inventor Chapel Charles John             United States Wisconsin             54952 Menasha West 6781 Phi             Yah Lane 5 (72) Inventor Finch Valerie Victoria             United States Wisconsin             54956 Nina Henry Street             2052 (72) Inventor Jenke Ann Marie             United States Wisconsin             54952 Menasha Lussan Drive             1325 apartments 17 (72) Inventor Cotec Michael Brent             United States Wisconsin             54956 Nina Emerson Street               516 (72) Inventor Kruger Allen James             United States Wisconsin             54986 Wine Cone Twin Harbor               Drive 604 (72) Inventor Lake Andrew Michael             United States Wisconsin             54113 Combined Rocks Jair             Lynn Court 501 (72) Inventor Lee Me Uha             United States Wisconsin             54911 Appleton East Attra             Ntic Street 911 (72) Inventor Long Ladrov Sara Elizabeth             United States Wisconsin             54914 Appleton West Packer             Deed Street 1628 (72) Inventor Nelsen Janice Gull             United States Wisconsin             54915 Appleton Pine Court             128 (72) Inventor Vanevenhoven ann Margaret             To             United States Wisconsin             54911 Appleton South Olde             Oneaida 415 Apartment 319 (72) Inventor Colin Nancy Donaldson             United States Georgia 30076             Roswell Woodchuck Court             315 (72) Inventor Lec Crystal Stophin             United States Georgia 30309             Atlanta Peachtree Road             2214 # B-5 (72) Inventor Lyndon Jack Nelson             United States Georgia 30201             Alpharetta East Blue Flow             Mode 14810 (72) Inventor Walt Man Gully Roland             United States Wisconsin             54956 Nina Meadow Lane 1207

Claims (1)

[Claims]   1) For personal care products consisting of fabric that wicks artificial menstrual secretions A dispensing material of at least about 1.5 minutes in a horizontal wicking test. A dispensing material characterized in that it wicks a distance of one inch.   2) The fabric has a density less than about 0.15 g / cc. Distributing material according to 1.   3) having a pore diameter, wherein more than 50% of said pore diameter is about 80 to 400 microns The distribution material according to claim 1, which is:   4) having a pore diameter, wherein more than 60% of said pore diameter is about 80 to 400 microns The distribution material according to claim 1, which is:   5) having a pore diameter, wherein more than 70% of said pore diameter is about 80 to 400 microns The distribution material according to claim 1, which is:   6) A feminine hygiene package comprising the fabric according to claim 1. De.   7) The distribution material according to claim 1, comprising a composite fiber.   8) The distribution material according to claim 1, which is stabilized.   9) Includes a distribution / retention layer and a pad molding layer, each layer having 0.5 or less soil. The distribution / retention layer has a saturation profile of 4 or less. Personal care product system characterized by having.   10) The distribution / holding layer and the padding layer are each 0.375 or less. 10. The personal care product system of claim 9 having a soil length ratio below.   11) The distribution / holding layer and the padding layer are each 0.1875 or less. 10. The personal care product system of claim 9 having a soil length ratio below.   12) The distribution / retention layer has a saturation profile ratio of 2 or less. The personal care product system according to claim 9.   13) The distribution / retention layer has a saturation profile ratio of 1.4 or less The personal care product system according to claim 9, wherein:   14) The distribution / retention layer has a density of about 0.1 g / cc to about 0.2 g / cc. The personal care product system according to claim 9.   15) The distribution / retention layer has a basis weight of about 175 to 300 gsm. 5. The personal care product system according to 4.   16) The pad molding layer has a density of about 0.03 g / cc to about 0.1 g / cc. The personal care product system according to claim 9.   17) The pad molding layer has a larger pore size than the distribution / retention layer. The personal care product system according to claim 9, wherein   18) The personal care product system according to claim 9, further comprising a suction layer.   19) The pad molding layer has a larger pore size than the distribution / retention layer. And wherein said distribution / retention layer has a smaller pore size than said suction layer. Item 19. The personal care product system according to Item 18.   20) The personal card of claim 18, wherein the layer is a region of a monolithic material. A product system.   21) The method according to claim 18, wherein at least one of the layers has a slit. Personal care product system.   22) At least one layer is dry deposited, wet deposited and combined cardi Work according to a process selected from the group consisting of 20. The personal care product system of claim 18, wherein the personal care product system is configured.   23) At least one layer is made of cellulose fiber, foam, synthetic fiber. Contracts made of materials selected from the group consisting of 23. The personal care product system according to claim 22.   24. The personal care product system of claim 18, further comprising a transfer delay layer. M   25) The method according to claim 18, wherein at least one layer is embossed. Personal care product system.   26) The pad molding layer is embossed in a sine wave pattern. Item 26. The personal care product system according to item 25.   27) All layers are embossed together in a shell pattern 26. The personal care product system according to item 25.   28) A feminine hygiene product comprising the system of claim 9.   29) A feminine hygiene product,   Density of about 0.02 to about 0.06 g / cc, basis weight of about 25 to about 125 gsm, about 80 to 1000 micron With at least one aligned longitudinal slit A suction layer that   Density of about 0.1 to about 0.2 g / cc, basis weight of about 175 to about 300 gsm, about 40 to 500 microns With a pore size of at least one aligned longitudinal slit Distribution / retention layer   An embossed padding layer having a density of about 0.03 to about 0.2 g / cc; A feminine hygiene product comprising:   30) A feminine hygiene product,   Bodyside liner, distribution / retention layer, transfer delay layer, padding layer, and backsheet Equipped with   The liner is a nonwoven fabric, a nonwoven fabric, and a film. Selected from the group consisting of perforated laminates,   The distribution / retention layer is adhered to the liner layer, and the pulp and binder Made of iva,   The transfer delay layer is made of a polyolefin fiber, and the transfer delay layer is formed in the xy plane. Larger than the distribution / retention layer, and if fluid is transferred over the edge of the distribution / retention layer It is color processed to instruct the wearer if it moves,   The pad molding layer is an embossed spa that guides fluid by channeling it in the vertical direction. Having a turn,   The backing is made of a low-density film and is adhered to the pad molding layer,   The distribution / retention layer and the padding layer have a soil length ratio of 0.5 or less. Wherein said distribution / retention layer has a saturation profile of 4 or less; A feminine hygiene product characterized by that:   31) The liner is wettable, conjugated having a denier of about 6-10. Core / sheath type consisting of 50/50 ratio of polypropylene / low density polyethylene Laminate of a vent bonded web of concentric fibers, where the nonwoven is about 0. It has a density of 03g / cc, a basis weight of about 0.7osy (24gsm), and a film of about 5.5 And about 94% having a density of about 0.9 g / cc and a titanium dioxide concentration of about 6% 31. The feminine hygiene product of claim 30, comprising low density polyethylene.   32) The liner is a laminate of film and non-woven, about 8 to Laminated using a thermal bonding pattern with 12% bonding area, 4. The hole is drilled to provide about 27% open area for passage. 2. The feminine hygiene product according to 1.   33) The liner is dispensed / held using an additional amount of adhesive of about 5 gsm 31. The feminine hygiene product of claim 30, which is joined to the layers.   34) The distribution / retention layer is made by a dry deposition process and has about 90% softness. Timber pulp and 50% of 10% polyethylene terephthalate / copolyolefin Core / sheath type concentric 2.8 denier fiber with a ratio of / 50 31. The distribution / retention layer having a basis weight of about 250gsm and a density of about 0.14g / cc. The mentioned feminine hygiene product.   35) The distribution / retention layer creates an upward arch during use of the product. 35. The device according to claim 34, which has a longitudinal slit for improving adaptability to a body. Women's hygiene products listed.   36) The slit may be continuous or intermittent, and 36. The feminine hygiene product of claim 35, wherein the product is centered on.   37) The transfer delay layer is a polyolefin fiber having a denier of about 2.7. A spunbond web of ba, said web having a basis weight of about 0.8 osy (27 gsm) 31. The feminine hygiene product of claim 30, wherein   38) The female of claim 37, wherein the transfer delay layer has a color other than white. For sanitary products.   39) The pad molding layer is made by a dry deposition process and has about 90% softness. Timber pulp and 50% of 10% polyethylene terephthalate / copolyolefin Core / sheath type concentric 2.8 denier fiber with a ratio of / 50 The pad molding layer has a basis weight of about 175 gsm and a density of about 0.8 g / cc. The mentioned feminine hygiene product.   40) The pad molding layer has two layers of pulp, the first layer having a thickness of about 500 gsm. Consisting of a softwood pulp, having a sinusoidal embossed pattern, the second Claim: It is made of 0gsm softwood pulp and has a certain embossed pattern. 30. The feminine hygiene product of 30.   41) The backing comprises a 1 mil low density polyethylene film. 30. The feminine hygiene product of 30.   42) The female guard according to claim 30, wherein the backing is colored in a rose color. Raw products.   43) A feminine hygiene product,   A body side liner, a distribution / retention layer, a padding layer, and a backsheet;   The liner is a wettable, conjugated, polypropylene having a denier of about 6 to 10. Core / sheath type concentric fan with 50/50 ratio of pyrene / low density polyethylene Iva is a laminate of air-bonded web, where the nonwoven is approximately 0.03 g / cc dense. Degree and about 0.7osy (24gsm) basis weight, the film has a melt index of about 5.5 And about 94% low density poly with a density of about 0.9 g / cc and a titanium dioxide concentration of about 6% Thermal bonding pattern consisting of ethylene and having about 8 to 12% bonding area About 27% open area for the passage of fluids. Perforated to obtain   The distribution / retention layer is adhesively bonded to the liner and is used in a dry deposition process. About 90% softwood pulp and 10% polyethylene Core / sheath type concentric 2.8 with a 50/50 ratio of phthalate / copolyolefin Consisting of denier fiber, said distribution / retention layer having a basis weight of about 250 gsm and about 0.14 g / cc density, the distribution / retention layer is intermittent or continuous, centered Has a vertical slit,   The pad molding layer is made by a dry deposition process, and about 90% softwood Pulp and a 50/50 ratio of 10% polyethylene terephthalate / copolyolefin Core / sheath type concentric 2.8 denier fiber It has a basis weight and a density of about 0.08 g / cc, and can be used to guide fluid by channeling it vertically. Has a vertical emboss pattern,   The backing layer is a 1 mil low density polyethylene bonded to the pad molding layer. It consists of a film colored in the rose color of Len, A feminine hygiene product characterized by that:   44) further comprising a transfer delay between the distribution / holding layer and the pad molding layer; The transfer delay is greater in the xy plane than in the distribution / retention layer. A polyolefin fiber having a denier of about 2.7 44. The web of claim 43, wherein the web has a basis weight of about 0.8osy (27gsm) and is a color other than white. Feminine hygiene products.   45) Women's hygiene products,   A body side liner, a distribution / retention layer, a padding layer, and a backsheet;   The liner is a wettable, conjugated, polypropylene having a denier of about 6 to 10. Core / sheath type concentric fan with 50/50 ratio of pyrene / low density polyethylene Iva is a laminate of air-bonded web, where the nonwoven is approximately 0.03 g / cc dense. The film has a basis weight of about 0.7osy (24gsm) and a film thickness of about 5.5. And about 94% having a density of about 0.9 g / cc and a titanium dioxide concentration of about 6% Thermal bonding pattern made of low density polyethylene and having about 8 to 12% bonding area About 27% open area for the passage of fluids It is perforated so that   The distribution / retention layer is adhesively bonded to the liner and is used in a dry deposition process. About 90% softwood pulp and 10% polyethylene Core / sheath type concentric 2.8 with a 50/50 ratio of phthalate / copolyolefin Consisting of denier fiber, said distribution / retention layer having a basis weight of about 250 gsm and about 0.14 g / cc density,   The pad molding layer has two layers of pulp, the first layer is about 500 gsm of software. Pulp, having a sinusoidal embossed pattern, the second layer having a softness of about 400 gsm. Made of softwood pulp with a certain embossed pattern   The backing layer is a 1 mil low density polyethylene bonded to the pad molding layer. It consists of a film colored in the rose color of Len, A feminine hygiene product characterized by that:   46) further comprising a transfer delay between the distribution / holding layer and the pad molding layer; The transfer delay is greater in the xy plane than in the distribution / retention layer. A polyolefin fiber having a denier of about 2.7 46. The web of claim 45, wherein the web has a basis weight of about 0.8 osy (27 gsm) and is a color other than white. Feminine hygiene products.