TW310272B - Absorbent member and absorbent structure for distribution and storage of bodily fluids, method of manufacturing the absorbent member and absorbent article comprising the same - Google Patents

Abstract

The fluid distribution members according to the present invention preferably comprise three basic components: chemically stiffened, twisted, and curled bulking fibers, high surface area fibers, and thermoplastic binder fibers. Fluid distribution members accordingto the present invention use a high surface fiber to provide capillary pressure (or suction) to the fluid distribution member.These high surface area fibers are generally small and highly conformable. They provide the substrate with capillary pressure well in excess of the capillary pressure found in the bulk-providing chemically stiffened, twisted, and curled fibers alone. A presently preferred fiber for this high surface application is the eucalyptus family of wood pulp fibers. Eucalyptus provides the capillary pressure usually associated with cellulose fines, but at a large enough length and denier so as to not fill in the voids provided by the chemically stiffened, twisted, and curled fibers and will not easily pass through a forming screen.

Description

Du Printed by the Ministry of Economic Affairs Central Bureau of Standards for Consumer Consumption 310272 A7 B7 V. Description of the Invention (1) The present invention relates to a fluid distribution member that improves fluid distribution and storage properties. The invention further relates to absorbent structures incorporating such fluid distribution members that can be used in a variety of absorbent articles such as menstrual articles, disposable diapers, adult incontinence garments, and shorts. Invented Suiwu Absorbent networks with entangled fiber clumps, or fibrous networks, are well known in the art. This mesh structure can absorb liquids such as excreted body fluids, and both absorb mechanisms in which the fluid is absorbed by the fibrous material itself and wicking mechanisms in which the fluid is taken up, distributed through, and stored in the capillary spaces between the fibers. _ A method to improve the absorption capacity of this fibrous network structure is to blend _ items of superabsorbent materials such as polymer gels (also known as hydrogel-forming superabsorbent polymers, etc.) to absorb fluids. Superabsorbent materials have the function of retaining fluids such as discharged body fluids. Although the existence of absorbent cores is known above, there is still a need to provide absorbent cores that have increased effective absorption capacity. A theoretical way to achieve this would be to increase the content of polymeric gelling material in the absorbent core. Unfortunately, the high content of polymeric gelling substances in the fibrous network typically used in the absorbent core can exceed a content of about 15%, which can be called a phenomenon of gel blocking. The polymerized gelled substance absorbs the fluid in the area where it first contacts the fluid to form a hydrogel. As a result, the volume increases and the gel becomes clogged. When the concentration of the polymeric gelling substance is too high, the hydrogel can prevent the applied fluid from reaching other core areas with unused absorption capacity. The occurrence of gel blockage can cause the absorbent article to leak during use. The polymer gelling substance has been developed to show the tendency to reduce the occurrence of gel clogging. The paper is used in the scale of the paper. The national standard (CNS) A4 specification (210X297 mm) is used. Please read the precautions on the back before filling in this page) Order 310272 V. Description of the invention (2) A7

The Ministry of Economic Affairs, Central Bureau of Precinct's Staff Consumer Cooperative printed the SL trend. However, these improved polymeric gelling substances and other superabsorbent materials are limited by the performance of the cellulose fiber network in which the gelling substance particles are distributed. Especially after the initial wetting, the cellulosic fiber network is easy to fold to a higher density, thus exhibiting a reduced capacity, permeability, and flow delivery efficiency. Another reason why many absorbent articles such as menstrual pads, adult incontinence products, and diapers are easy to leak is that if the first fluid excrement has been effectively absorbed and unable to absorb the second fluid and its subsequent excrement. Users are generally accustomed to taking care of multiple discharges at night, so that the second and subsequent discharges leak. In addition to the reasons discussed above, the reason why many absorbent articles cannot adequately handle repeated discharge fluids is that the absorbent core is unable to transport the discharge fluid from the discharge area after it has reached the absorption capacity of the discharge area. The overall performance of the absorbent article is limited by the farthest range of inability to deliver fluid to the core. One measure that was used to increase the fluid transport capacity of absorbent cores is to make a smaller average pore structure by thickening conventional cores. This does indeed reduce the average pore size of Quanli after the maximum fold ratio is usually found in the largest cell, while the smallest pore determines the final capillary pressure (vertical wicking height) to find the smallest change ratio. This loss of large pore volume results in a significant loss of energy, more importantly in fluid permeability. Another measure used to improve the fluid delivery capacity of the absorbent core in the past is to encounter a certain amount of fine fibers and particles with high surface area and chemically strengthened traditional cellulose fibers, unreinforced cellulose-type substances, synthetic fibers' chemicals Additives and thermoplastic polymers. Since the surface area per unit volume has a strong influence on the capillary pressure of a particular substrate, these high surface area fibers do provide higher vertical wicking. However, the resulting structure tends to become extremely dense and the fluid transport capacity becomes low or " abnormal discharge " (flux), which is explained here as moving a certain amount of fluid

(Please read the precautions on the back before filling out this page).

* 1T 310272 A7 Printed by the Beigong Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economy V. Description of the invention (3) The specified material cross-section is passed to a specific height within a specific time. Since then, the increase in capillary pressure (height) in the fine fiber results in greater volume loss when transported to the specified height. The fluid distribution member according to the present invention preferably contains three basic components: chemically strengthened, twisted and crimped expanded fibers, high surface area fibers, and thermoplastic adhesive fibers. The flow distribution member according to the present invention uses a high surface fiber to provide capillary pressure (or suction) to the flow distribution member. These high surface area fibers are generally small and highly compliant. The capillary pressure that can provide substrates is far greater than that of mass-produced chemical strengthening, twisting, and crimping fibers alone. Therefore, the existing preferred fiber for high surface applications is the eucalyptus genus of wood pulp fibers. Eucalyptus is usually combined with fine cellulose powder to provide capillary pressure, but must be long enough and fine enough not to fill the empty space made of chemically strengthened and crimped fibers, and not easy to pass through the formed net = particularly suitable eucalyptus fibers include Giant eucalyptus. The flow distribution member of the present invention can be conveniently used as an absorbent core component in various types of absorbent articles, such as disposable menstrual pads, diapers and incontinence shorts, etc. It also contains a fluid-permeable face sheet and is attached to the face sheet The impervious sheet of Zhao Zhi, with an absorbent core in between. Although the description of the drawing is specifically pointed out by the patent application, and the obvious conclusion of the scope of the invention, I believe that the following description and the drawings will better understand the present invention. The same reference numerals in the drawings identify the same components, among which: Figure / Department 1 Partial section of the preferred specific example of the menstrual article-type absorbent article-6- This paper scale is applicable to the Chinese National Standard (CNS) Α4 specification (210 X 297 gala) (please read the precautions on the back before filling this page) Order

U 310272

3. Description of the invention (4 Printed by the Beigong Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs // Includes the fluid distribution member according to the present invention; The detailed description of the invention t invention 〇Wali distribution member can be used in disposable products that can absorb a large amount of body fluids such as urine sweat and waste water in the body. These objects can be made into diapers, menstrual pads, adults Incontinence shorts, cotton ball, disposable hair and handkerchief equation. The inner absorbent article often contains three basic structural components. One component is the actual = liquid-permeable back sheet. An absorbent core is placed on this back sheet It may itself have several different layers, or it may contain superabsorbent material in multiple layers. The one that connects the backsheet on this absorption is a fluid-permeable topsheet. The topsheet is an element of the object, f is close to the person wearing it. Wide text The term "connected" used includes the face sheet directly facing the back sheet _ around the edge of the absorbent core and directly connecting the back sheet, and the field sheet is attached to the intermediate member, sequentially attached to the back sheet and indirectly connected to the back sheet The configuration. The back sheet is preferably directly connected to the edge of the absorbent article by adhesive or other fixing methods known in the art, and the face sheet can also be adhered to the absorbent core. The preferred disposable diaper or menstrual pad of the present invention contains an absorbent core, A face sheet that is stacked or coextensive with one side of the core, and a core surface that is stacked with a liquid-impermeable back sheet or coextensive with the surface of the face sheet. The back sheet and face sheet preferably have a larger width and length than the core Therefore, the small margin of the back sheet and the face sheet outside the stretch core is made. The product should be constructed in an appropriate shape such as an hourglass, but there is no limitation. The absorbent core or absorbent structure according to the present invention contains or includes a fluid distribution member described later It should be noted that the meaning of the present invention " layer "-refers to the structure of the absorbent structure that can be surely placed in the middle of the core with the attached surface -I-1 »1-----I -1 I-taxi l ^ ni ( Please read the precautions on the back before filling out this page) Order ο This paper standard adopts the Chinese National Standard (CNS> A4 specification (210XW7 mm) A7 B7 The consumption cooperation of the Central Falcon Bureau of the Ministry of Economic Affairs is printed by the five. Invention description (5) Recognize the component 'anything called " layer " The structure may actually contain several pieces of the necessary materials described later or a stack or combination of mesh structures. The "layer" used in this article includes the meaning of "multilayer" and "layer". The intention of the present invention should be understood The "upper layer" refers to the layer of the absorbent core that is closest to the face sheet of the object, and the "lower layer" refers to the absorbent core layer that is closest to the back sheet of the object. The tying plane may be substantially uneven, and the longitudinal section may be formed or made into any desired form. The absorbent structure according to the present invention may contain more than one layer or the structure is attributed to the properties and characteristics of the fluid distribution member. These absorbent structures may also contain layers or layers with different combinations and functional characteristics such as the ingestion layer and the storage layer to provide functional attributes to increase the characteristics of the fluid distribution member of the present invention and promote the overall achievement of the absorbent structure. Alternatively, a fluid permeable sheet (such as a thin paper sheet) or other interlining may be placed between the fluid distribution member and another component to increase the integrity of the fluid distribution member during handling and / or use. This sheet or interlining can encapsulate all or only a part of the fluid distribution member, or simply be placed as described above without encapsulating the fluid distribution member. Alternatively, any layer or structure containing superabsorbent material can be enclosed with a fluid-permeable sheet such as tissue paper to eliminate the user's concerns about loose superabsorbent material. The uptake layer is suitable as one of the components of the absorbent structure component here is the upper fluid uptake layer, in which the hydrophilic fibrous material-containing material is described in more detail later. This fluid ingestion layer can quickly collect and temporarily hold the discharged body fluid ❶ part of the discharged fluid can penetrate the ingestion layer depending on the position of the wearer, and is absorbed by the fluid distribution member in the vicinity of the discharge. -8-& paper scale is applicable to Chinese National Falcon (CNS > A4 specification (210X297mm) (please read the precautions on the back before filling out this page). Printed by the Ministry of Economic Affairs, Central Falcon Bureau Employee Consumer Cooperative 310272 at B7 V. Description of the invention (6) However, due to the large amount of emissions, the fluid distribution member in this area cannot absorb fluid as quickly as it discharges. So the upper intake layer here also promotes the transfer of fluid from the initial fluid contact point to the intake Other parts of the layer. The term "fluid" in the full text of the present invention includes, but is not limited to, liquid, urine, menstruation, sweat and water-based liquid. The flow function of the intake layer is particularly important. The intake layer must have Full capillary suction does not show too much fluid retention than a completely dried face sheet, making it difficult for the lower layer (fluid distribution member) to desorb the intake layer. The intake layer can be composed of several different materials including synthetic fibers such as polyester, polypropylene or polyethylene Fibers such as cotton or cellulose. Blends of these fibers, or non-fiber or woven meshes of any similar material or combination of materials, etc. Fluid distribution member A. Flow Composition of the body distribution member The fluid distribution member according to the present invention preferably contains three basic components: chemically strengthened twisted crimped fibers, high surface area fibers, and bonded fibers. The fluid distribution member preferably contains about 20% to about 80% Chemically strengthened twisted crimped fiber, about 10% to 80% high surface area fiber, and 0% to about 50% thermoplastic bonding mechanism for improving the physical integrity of the network. All percentages here refer to the total dry network weight The weight percentage of the base. The flow distribution member may preferably contain between about 45% and about 60% of the chemically strengthened twisted crimped fiber, between about 5% and about 15〇 / 〇 hot melted fiber bonding mechanism, and about 30 High surface area cellulose bonding mechanism (explained later) between% and about 45%. The fluid distribution member preferably contains about 10% thermoplastic bonding mechanism, about 45% twisted and crimped fiber reinforced by chemical punch, and about 45% high Surface area fiber. Chemical additives can also be used as a bonding mechanism, -9-This paper scale uses the Chinese National Standard (CNS) A4 specification (210x 297mm) (please read the precautions on the back and fill in this page). Member of the Central Bureau of Economics of the Ministry of Economy Printed by the consumer cooperative A7 __B7 V. Description of the invention (7) The typical concentration of the blended dry net weight basis is about 0.2% to about 2.0% in the intake / distribution layer. The three basic fiber components are described in more detail below. Chemically enhanced / Twisted expanded fiber The fluid distribution member of the present invention contains a chemically strengthened twisted crimped fiber as the main component. The term " chemically reinforced twisted crimped fiber " used herein means any fiber that is dry and hydrated Under the previous chemical measures to enhance the stiffness of the fiber. This measure includes the addition of chemical strengthening agents, for example to coat and / or diffuse the fiber. This measure also includes the modification of the chemical structure of the fiber itself, such as by crosslinking of polymer bonds Fiber reinforced. Fibers reinforced by crosslinking into a characteristic (i.e., loose) form are published in, for example, US Patent 3,224,926 issued to Bernardin on December 21, 1965; Chung, United States issued on April 22, 1969 Patent 3,440,135; US $ 3,932,209 issued by Cai Deji ((2: 113 1 ^ 6); and US Patent 4,035,147 issued by Sangenis, etc. on July 12, 1977 The preferred fiber was published in US Patent 4,822,453 issued by Dean on April 18, 1989; US Patent 4,888,093 issued by Dean on December 19, 1989; and issued on February 6, 1990 Moore et al. US Patent 4,898,642. These patents are all incorporated herein by reference. Without wishing to be bound by theory, these reinforcing fibers should be substantially keratinized except for their hydrophilic nature. Expand to maintain the void volume within the network. The chemically strengthened twisted and crimped cellulose fibers provide permeability, flexibility, and increased hydrophilicity. Because the fine fibers discussed in this article are very small and highly capable -10- this paper The scale is applicable to China National Standard Falcon (CNS) A4 specification (2IO X 297 Ali) ~-^ ------ (installed-- (please read the precautions on the back and then fill out this page) Order M 810272 A7 Printed B7 by the Consumer Consultation Cooperative of the Sakura Standard Falcon Bureau of the Ministry of Economic Affairs Description (8) Compliant chemically-strengthened twisted and crimped cellulose fibers, reinforced twisted / crimped are one of the few materials that resist thin fibers filling the gaps between fibers. This ability to maintain an open capillary structure provides both Permeability and void volume capacity. Other polymeric reinforcements that can coat or impregnate cellulose fibers for demonstration purposes include: cationic modified starches with nitrogen-containing groups (such as amine groups) such as available from National Starch & Chemical Corp ·, Bridgewater, NJ, USA; latex; wet strength resins such as polyamide-epoxy alcohol resin (eg KymeneTM 557H, Hercules, Inc. Wilmington, Delaware, USA), polypropylene amide resin (eg in 1971 1 It was issued to Coscia and other U.S. Patent Nos. 3,556,932 on May 19; and, as commercially available polypropylene amides sold under the brand name Parez 63 1 NCTM of American Cyanamide Corporation, Stanford, CT, USA); Urea formaldehyde Melamine formaldehyde, and polyethyleneimine resin. A summary paper on the use of wet strength in paper technology, and those in this paper can refer to the TAPPI monograph series No. 29 |, Wet Strength of Paper and Paperboard, TAPPI (New York , 1965). The fibers used in the fluid distribution member herein are preferably strengthened according to chemical reactions. For example, a fiber can be applied with a cross-linking agent, and after coating, it can be chemically formed into cross-links in the fiber. These crosslinks can increase the stiffness of the fiber. Although it is better to chemically strengthen the fiber by using cross-linking bonds in the fiber, it is not meant to exclude other types of fiber chemical strengthening reactions. The chemical treatment in the preferred reinforced fiber includes cross-linking in the fiber with a cross-linking agent. At this time, these fiber systems are relatively dehydrated, defibrillated (that is, featured) and twisted. Suitable chemical strengthening agents include haplotypes but not limited to c2-c8 -11-This paper size is applicable to China National Standard (CNS) A4 specification (210X 297mm) (Please read the precautions on the back before filling this page) Ministry of Economic Affairs Printed by the Central Standards Bureau Employee Consumer Cooperative A7 B7 5. Description of the invention (9) Dialdehydes, monoaldehydes with acid functionality can be used to make cross-linking solutions. These compounds are capable of reacting with at least two warp groups on a cellulose chain in a single cellulose chain or in a general location in a single fiber. Such crosslinking agents that are expected to be used to prepare reinforced cellulose fibers include, but are not limited to glutaraldehyde, glyoxal, formaldehyde, and diacetate. Other suitable fortifiers are polycarboxylic acids such as citric acid. Polycarboxylic acid reinforcing agents and methods for making reinforcing fibers are described in U.S. Patent No. 5,190,563 issued on March 2, 1993, and are incorporated herein by reference. The effect of cross-linking under these conditions is to produce reinforced fibers, and it is easy to maintain its twisted curled shape during use of the absorbent article in the article. This fiber and its manufacturing method are cited in the patent description. The reinforced cellulose fiber with better physical and performance characteristics mentioned above can be used in comparison with dehydrated fibers in which the fibers are being dried or have been dried and separated and the fibers (ie "loose") are internally crosslinked. As stated in US Patent Application No. 304,925. This does not mean that other hydrophilic chemically-strengthened twisted crimped fibers of the present invention must be excluded. These other fibers have been cited in (but not limited to) US Patent 3,224,926, 3,440,135 , 4,035,147, and 3,932,209, etc. High surface area entanglement dimension The fluid distribution member according to the present invention uses a high surface fiber to supply capillary pressure (or suction) to the fluid distribution member. These high surface area fibers are generally small and can adapt to the south. The capillary pressure of the substrate exceeds the capillary pressure of the chemically strengthened twisted crimped fibers prepared in the expansion. The currently preferred fiber for high surface use is eucalyptus wood pulp fiber. Eucalyptus generally provides capillary pressure together with cellulose fine powder. But its length and Ding Neil must be innnnn HI "-* Cloth—I (Please read the notes on the back first (Fill in this page again) Order -12- Mechanical Appropriate Finance_ ^ (CNS) A4 * IFnT〇 ~ x 297 ^^ A 7 ____________B7_ V. Description of Invention (1〇) Large enough not to fill up the chemically strengthened twist The voids made of crimped fibers, and not easy to pass through the forming net as described later. A large amount of fine cellulose powder. Particularly suitable eucalyptus fibers include those of giant eucalyptus. Other suitable for adding to the reinforced cellulose fiber before making a wet net from paper pulp Fibers that produce surface area include, but are not limited to, a variety of cellulose and synthetic cellulosic materials such as those issued to Young, et al. On June 8, 1993 in U.S. Patent No. 5,217,445, incorporated herein by reference. Such materials include unreinforced Cellulose fibers (ie traditional cellulose pulp fibers, etc.). Highly refined unreinforced cellulose fibers (preferably Canadian standard beating degree (CSF) less than about 200 CSF, preferably from about 40 CSF to about 100 CSF ) Is called " Crill " in the text, and high surface area cellulose materials such as expanded cellulose fibers (described later). The high surface area cellulose is fully mixed with the reinforcing fibers in the slurry, and the slurry wet spreading is as described above. Blenders, strippers, grain beaters, homogenizers (such as single, cone or double-disc pulpers), or other equipment known in the art can mix or disintegrate into blocks of reinforced fibers and high Surface area cellulose. Printed by the Zhengong Consumer Cooperative of the Central Bureau of Economic Affairs of the Ministry of Economic Affairs--------Please read the precautions on the back before filling this page. High surface area cellulose can also be made from cellulose The fibers are sent through the suspension of cellulose fibers through small diameter orifices. The suspension is subjected to a pressure drop of at least 3,000 psig and high-speed shearing, followed by high-speed deceleration impact. The suspension was repeatedly sent through sharp holes to obtain a substantially stable suspension to date. See ^ Expected Year ^ Month 20 May Turbak (Turbak) and other US annual profits 4,483,743, hereby incorporated by reference. Hot melt adhesive fibers are known to be stronger. Compared with traditional unreinforced cellulose fibers, the above high surface area fibers are mixed with cross-linked twisted reinforced fibers to make lower tensile sheets, especially in wet conditions. Therefore, we want to make it easy to handle and provide product specific mechanical properties in the wet and dry two-state ______- 13- Therefore, the Zhang scale is suitable for the financial property g (CNS) Λ4 specifications (2lGx 297 public)------- S10272 A7 B7 Printed by the Staff Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs -14- V. Description of the invention (11. It is advisable to blend the whole-type bonding mechanism on or in the network structure. This can be done by adding a bonding medium to the pulp before making the network structure Achieved, the bonding agent is placed on the forming wire mesh, before drying, after a dry bath or a mixture thereof is applied to the wet-laid mesh structure (the fluid distribution member according to the present invention teaches the bonded polymer micro-network structure due to the integration of the material To alleviate these problems. This micro-network structure is made of polymer-bonded fibers (such as Hoechst-Celanese co-polyolefin two-component fibers) strongly bonded at the intersection of fibers. This polymer micro-structure makes the network structure resistant to harshness Softening process. Therefore, after strictly controlling the non-planar elongation of the network [ring roll (that is, through the corrugated roll), crepe, S-wrapping, etc.], the properties of the thermoset polymer micro-net structure are greatly controlled and kept wet / Dry tension, flexibility and elasticity The surface is mechanically softened and maintains the desired wet / dry tension and elasticity. In a preferred embodiment, the fluid distribution member includes a wet-laid mesh structure with reinforced cellulose fibers, wherein the mesh structure is between about 0 and about 50%, preferably about 5 To about 25%, more preferably about 7 to about 15%, reinforced thermoplastic adhesive material, wherein the thermoplastic adhesive material provides a bonding position at the intersection of the adhesive fiber and any other bonded fiber chemically strengthened twisted cellulose fiber or high surface area fiber This heat-bonded network can usually be made by forming a network containing reinforced cellulose fibers and thermoplastic fibers, preferably distributed evenly throughout. The thermoplastic fiber material can be combined with reinforced cellulose fibers and fine fibers in an aqueous slurry After internal mixing, the net structure is formed. After the formation, the net structure is heated until the thermoplastic part of the fiber melts to thermally bond the net structure. Special non-limiting examples of suitable fiber materials include polyester hot melt fibers (k〇DEL 410). Component fibers, three-component fibers and their mixtures, etc. In addition, 'crimped polymer-based binder fibers can contribute to the additional volume of the network structure. The current curly polymer-based binder fiber is H echst_ ΜΛ Zhang size appropriate finance secretary transfer (CNS) Λ4 specification (2Η) χ 297 mm --------- C Du Yi ------ 1Τ ------. S4 (please first Read the precautions on the back and fill out this page) A7 B7 Printed by the Consumer Contribution Cooperative of the Central Sample Falcon Bureau of the Ministry of Economic Affairs V. Invention Instructions (12

Celanese co-polyolefin two-component fibers are available from Hoechst-Celanese Corp. under the trade name CELBOND®, type 255, lot 33865A, with a detex of approximately 3.3, a dinier of approximately 3.0, and a fiber length of approximately 6.4 mm. Thermoplastic adhesive materials suitable for use as fluid distribution members herein include any hot melt adhesive that can melt at a temperature that does not damage the cellulose fibers. The melting point of the thermoplastic adhesive material is preferably less than about 175 ° C, preferably between about 75 ° C and about 175.0. In any case, the melting point should not be lower than the temperature at which the article of the present invention may be stored, so the melting point should typically be not lower than about 50. (:. Examples of thermoplastic adhesive materials can be polyethylene, polypropylene, polyester, polyethylene, polyvinylidene fluoride. Thermoplastic fibers should not take up or absorb water flow. But the surface energy of thermoplastic materials Hydrophilic or hydrophobic. (The terms " hydrophilic " and " hydrophobic " as used herein will refer to the degree to which the surface is wetted by water.) Hydrophilic materials become better at higher thermoplastic degrees, especially above about 40% The thermoplastic fiber used here can have a length of about 01 to about 6 cm grade, preferably from about 0.3 cm to about 3.0 cm. Thermoplastic should be bonded by ventilation, but it is not intended to exclude other methods such as infrared •• Spring Steaming "Drum Drying, Yankee, etc. In another variant, the mesh structure is embossed on one or both sides by heat. This technique is detailed in US Patent 4 59〇114, which has been described before in this specification. Reference. The previous discussion discussed that interlinings such as thin paper sheets and other water-permeable nonwoven sheets can be used as external supports to or in place of the aforementioned bonding mechanism. 'Increase the physical integration of the distribution layer and / or promote the mesh structure, especially the rented mesh structure Handle other adhesive media packages for distribution layer Chemical additives such as resin t paper scale are applicable to China National Counties (CNS) A4 secret (— 丨: {install ------ order ------ (please read the precautions on the back before filling this page) -15 -A7 B7 printed by the Employees ’Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs V. Description of the invention (13) Quality adhesive latex and technically known house powder that provides a fibrous network to improve integration. Suitable resinous adhesives include known Those who provide wet strength capabilities in paper structures can be seen, for example, in the " Wet Strength of Paper and Paperboard " TAPPI Monograph Series 29 (New York 1965) of the Technical Association of the Pulp and Paper Industry, which is cited here by reference. Suitable resins Including polyamido-epoxy alcohol and polypropylene amide resin. Other resins that can be used in the present invention are urea methyl resin and melamine methyl resin, etc. The more common functional groups of these polyfunctional resins are nitrogen-containing groups such as Amino groups and hydroxymethyl groups attached to nitrogen. Polyethyleneimine type resins are also useful in the present invention. Starch, especially cationic modified starches, can also be used as chemical additives in the present invention. Such cationic starch materials are generally With nitrogen-containing groups such as amine groups and Nitrogen-added methylol improvers are available from National Starch & Chemical Corp. in Bridgewater, New Jersey. Other suitable binders include, but are not limited to, polyacrylic acid, polyvinyl alcohol, and polyvinyl acetate. The concentration of the additive binder is typically from about 0.25% to about 2% of the total weight of the network. However, a larger amount of hydrophilic chemical additives can be used. If chemical additives are added to the reinforcing fibers contained in the pulp, they should also exist. Traditional unreinforced cellulose fibers or high surface area cellulose to increase the retention of chemical additive binders. Chemical additive binders can be applied to dried or undried meshes by printing, mouth fog or other methods known in the art on. Material manufacturing method The components of the fluid distribution member of the present invention can be blended together to form a mesh structure by a variety of methods, including wet, spreading, air spreading, fuzzing, and other methods, of which the wet spreading method is currently preferred. The technology for making sheet-like wet-laid cellulose fiber materials such as dry and paper is -16- The paper size is applicable to the Chinese National Standard (CNS) Λ4 specification (210X297mm) ^ ^ binding (please read the precautions on the back first (Fill in this page) 0-^ / 272 A7 B7 Printed by the Employee Consumer Cooperative of the Central Prototype Bureau of the Ministry of Economic Affairs V. Invention Instructions (14) Known technically. These techniques can often be used to wet lay reinforcing fibers to make wet laid sheets for inclusion in the absorbent structure of the present invention. Suitable wet-laying techniques include manual papermaking and wet-laying using papermaking machines such as L H Sanford, published in US Patent 3,301,746. Due to the role of chemically strengthened twisted crimped fibers, the flocculation tropism is especially in aqueous slurry. Some of the treatment improvements described below should be supplemented when wet spreading with a paper machine. Generally, the aqueous fiber pulp is placed on the porous forming net, and the wet spreading slurry is dehydrated to form a wet net and dried to obtain a wet spread net. The aqueous fiber pulp for wet spreading preferably has a fiber consistency of between about 0.02% and about 2.0%, preferably between about 0.02% and about 0.2% by weight of the total slurry. The placement of the slurry is typically achieved using equipment known in the art, such as flow. The flow box has a gap, called a slit, for discharging and discharging the aqueous fiber pulp on the porous forming wire. The forming wire can have a structure and mesh size for dry stacking or other papermaking processing. Preferably, about 70 to about 100 (Taylor Tyler standard screen gauge) is used. (All mesh sizes mentioned here will be based on Taylor's standard mesh regulations, unless expressly indicated otherwise.) The traditional design of technologically known flow boxes that can be made with dry stacks and sheets. Flow boxes available for suitable commodities include, for example, open style, fixed covers, double wire, diagonal lines, and drum forming flow boxes. Once formed, the wet mesh is dehydrated to dry. Dehydration can be carried out with suction boxes or other empty facilities. Dewatering typically increases the fiber consistency to between about 8% and about 30% of the total wet network weight basis, preferably between about 8% and about 23%. Dehydration to a consistency above about 23% may require wet pressing and is not suitable. After dewatering the net. The structure energy is transferred from the forming wire net to the drying fabric conveying net structure to the drying device, but it is not necessary. The wet mesh can be dried in many ways known in the art. It is particularly important to make the mesh structure melt thermoplastic adhesive material to other fibrous materials and not too high; Γ installed — (please read the precautions on the back and then fill out this page) to order.-ο -17 Ministry of Economic Affairs Central Falcon Bureau Printed by staff consumer cooperatives A7 ________B7 V. Description of the invention (15) The temperature at which the thermoplastic adhesive material flows into the void volume of the net structure is thoroughly and evenly dried. Drying can be accomplished by, for example, hot blow-through dryers, hot air impingement dryers, and hot drum dryers including Yankee dryers. Wet-laid webs should be dried to completeness (probably to a fiber consistency of about 95% to about 98%). The flexibility of a fully dry bath should be increased. Suitable methods for increasing the flexibility of the mesh structure may include crimping with a Yankee dryer with a scraper 'or one of several mechanical techniques such as a scraper or relative saddle, S-package crimping or micro-beryllium, using corrugated rollers or Rolling is a method well known in the art. The process of improving the flexibility or flexibility of the mesh can be completed as part of the mesh manufacturing method or as an independent hot post-forming operation. In addition to the above-mentioned preferred method of wet spreading, in some cases it may be desirable to fabricate the fluid distribution structure according to the present invention by air spreading, carding, or other suitable methods. Storage layer The absorbent structure according to the invention may optionally contain additional layers of original fluid storage characteristics. These storage layers typically have limited transport and wicking capabilities but have high storage or retention energy, and the fluid distributed by the fluid distribution member spreads over a larger area. The storage layer or component can have a roughly traditional design and combination, with regard to the specific use options. The storage layer or member may be a single layer or multiple layers, homogeneous or layered, thick or uniform, etc. The materials used in these storage components may originally be natural or synthetic, woven, non-woven, fibrous, cellular, or micro-like, and may include particles, layers, or absorbent polymeric gelling substance areas . The storage member may also have any size and / or shape that proves to be suitable for the intended use, including square, rectangular, oval, elliptical, oblong, etc.

Tcns) A4 ^ (zio'xl ^ iT-· ------ (approved clothing ------ ir ------ J (please read the precautions on the back before filling this page) B7 V. Description of the invention (16) It can also take a three-dimensional shape or be sufficiently flat in nature. Exemplary absorber # And the absorber used inside <The term refers to a device that absorbs and contains body secretions, more specifically, refers to putting on and putting on A device that absorbs and contains various secretions discharged from the body of the person or nearby. The term "rejectable" is used here to indicate that the absorbent article is not irrigated or otherwise restored or used as an absorbent article ( That is, it is planned to be discarded after one-time use and preferably recycled or composted in an environmentally acceptable manner). &Quot; Unit &quot; absorbent article means the absorbent article is made of separate parts and combined to form an integrated entity so that they do not have to be handled by hand. The holder and the whole child. The preferred specific example of the single 7C disposable absorbent article of the present invention is the menstrual pad sanitary pad 20 shown in Figure 〖. As used in the text, the term “sanitary pad” refers to a woman's proximity to the vulva Absorbent articles worn outside the genitals, expected to absorb and tolerate the wearer Discharged menstrual fluid and other vaginal excreta (such as blood, menstruation and urine). The interlabial device partially stays in the wearer's vestibule and partly outside is also within the scope of the present invention. The term "urogenital" used in the text refers to the external Visible female genitals. However, it should be understood that the present invention can also be used for other feminine hygiene or menstrual regimens such as short peppers or other absorbent articles such as incontinence pads and tampon tampon. The Ministry of Economic Affairs Central Nine quasi bureau employee consumer cooperative printed maps 1 is a plan view of the sanitary napkin 20 of the present invention in its unfolded state, and part of the structure is cut out to more clearly show the structure of the sanitary napkin 20. The portion of the sanitary napkin 20 that faces or contacts the wearer faces the reader. The sanitary napkin shown in FIG. 1 2 It is desirable to include a liquid-permeable face sheet 22, a liquid-impermeable back surface 23 connected to the face sheet 22, and a suction eagle H5 located on the face U2 and the back sheet 23. The sanitary napkin 2 depicted in Figure 1 is a simplified absorbent article It can represent the sanitary napkins that were put on the underwear of the wearer before. However, it is necessary to know this __ 一 ____ -19- This paper standard is suitable for towels (CNS) Λ4 specifications (210X 297 Gongqing) ~ Central Bureau of Standards, Ministry of Economic Affairs Employee consumption cooperation du printing Α7 Β7 5. Description of the invention (17) The invention is not limited to the specific type or configuration of the sanitary napkin shown in Figure 1. The sanitary napkin 20 has two surfaces that contact the body surface or "body side" and the garment side. Figure 1 The sanitary napkin 20 is viewed from the side of its body. The body is intended to be worn on the wearer's body and the garment is on the reverse side. When the sanitary napkin is scheduled to be worn 20, it is placed close to the wearer's underwear. Midline &quot; L &quot; and horizontal midline &quot; T ,. The term &quot; longitudinal &quot; as used herein refers to the line, draw, or direction in the plane of the sanitary napkin 20 when wearing the sanitary napkin 20, which is approximately perpendicular to- The planes are arranged in a row (for example, approximately parallel) to bisect a standing wearer into left and right halves. The terms "crossing" or "horizontal" as used herein are interchangeable, referring to the line, axis or direction that exists in the sanitary napkin 2 which is approximately perpendicular to the plane of the succession. 囷 i also expresses that the sanitary napkin 2 has The periphery 30 is defined by the outer boundary of the sanitary napkin 20, and its relay side (or &quot; side &quot;) is shown at 31, and the side (or, end &quot;) is indicated at 32. FIG. 1 20 is symmetrical with respect to the two longitudinal and transverse midlines. The sanitary napkin 20 should preferably contain side pendants or &quot; wings &quot; 34, folded around the legs of the wearer ’s shorts. The lateral wings 34 can be used for many purposes, including but not limited to protection The wearer's shorts are not soiled and the sanitary napkin is fixed to the wearer's shorts. Although the face sheet, the back and the absorbent core can be integrated into a variety of well-known configurations (including all "quoted" products and side products, it is better The shape of the best sanitary napkin is roughly US Patent 4,9 5 0,264, "Thin Flexible Sanitary Napkin", issued to Osborne on August 21, 1999 .: Issued on January 10, 1984 U.S. Patent 4,425,130 to DesMarais ("Compound Sanitary Napkin"; issued on March 30, 1982 Ahr, U.S. Patent 4,321,924, &quot; Blank Disposable Absorbent Article &quot;; U.S. Patent 4,5 89,876, issued to Van Tilburg on August 18, 1987, &quot; Wings forming sanitary napkins &quot; etc. published inside. These patents are in _ -20- This paper scale is applicable to the Chinese National Standard (CNS) Λ4 specification (2 丨 〇χ 297mm>. ^. Binding—. (Please read the precautions on the back before filling this page) Printed by the Beigong Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs A7 ___—_ B7 V. Description of the invention (18) This reference is cited. Figure I shows a preferred specific example of the sanitary napkin 20, in which the length and width dimensions of the face sheet 22 and the back sheet 23 It is generally slightly larger than the absorbent core 25. The face sheet and the back sheet 23 extend beyond the edge of the absorbent core 25 to form not only a boundary portion but also a side wing. It is clearly seen in FIG. 1 that the back sheet 23 and the face sheet 22 are located adjacent to each other The garment surface and body surface of the sanitary napkin 20 should preferably be connected to each other to form the periphery 30. For example, the back sheet 23 and the face sheet 22 can use a uniform continuous adhesive layer, a patterned adhesive layer, or a row of separation lines, spirals, or Binder adhesive. It has been found that the satisfactory adhesive is HB Fuller Co. of St. Paul, manufactured by Minnesota, with the name hl_1258 or H-2031. Or the face sheet 22 and the back sheet 23 can be bonded by heating, pressing, Ultrasonic bonding, dynamic mechanical bonding, or connecting the patch and back as known in the art Any other suitable method is combined with each other, and a particularly suitable method for joining the face sheet 22 and the back sheet 23 is a folded seal. The fluid-tight seal is made along the edge 30 in the boundary section. This seal is adapted to prevent fluid self-sanitation The edge 30 of the cotton 20 moves laterally through the circular perimeters 31 and 32 (i.e. &quot; wicking .. &quot;), thereby suppressing premature side soiling of the wearer ’s underwear. As a result, the face sheet 22 and the back sheet 23 are easily kept relatively fluid-free. The horizontal arrangement is as close to the edge 30 as possible to keep most of the boundary section dry and unstained. The seal should completely surround the edge. 3 No gaps can accommodate wicking and fluid leakage. The seal i is heated or not heated by simultaneous application Forming 'commonly referred to as, "shrinking". "Shrinking". During the process, sufficient pressure or random heating is applied to melt the dough sheet and the back sheet 23 to form a seal. Some side areas outside the seal curl at different intervals. This Differentiated adhesion generation-a reverse or negative capillary gradient makes any fluid that accidentally passes through the seal easily lead to a thicker substance in the enclosed area; therefore ______ * 21-This paper scale is applicable to the Chinese country Standard (CNS) Λ4 specification (210X297 public broadcasting)-· ------ Γ. Install — (please read the precautions on the back before filling in this page) Order K4 ^ 10272 at B7 ___ V. Description of invention (19 ) There is fluid movement outside the seal along the seal, as opposed to the outside of the border. The absorbent core 25 according to the present invention contains the aforementioned improved distribution member 24 and can be made into a variety of sizes and shapes (such as rectangular, oval, hourglass, dog) Bone, asymmetry, etc.) The shape and structure of the absorbent core can also vary [for example, the absorbent core can have different thickness regions (for example, the center of the longitudinal profile is thicker). Hydrophilic gradient, superabsorption gradient, or lower density and lower average basis weight uptake effect band; or may contain one or more layers or structures]. However, the total absorption capacity of the absorbent core should be suitable for the design load and intended use of the sanitary napkin. In addition, the size and absorption capacity of the absorbent core can be varied to suit different uses such as incontinence school, shorts lining, regular sanitary napkin or overnight sanitary napkin. The fluid distribution member 24 according to the present invention may contain a single unit, unit, uniform layer, or multiple sheets of the materials described herein. Or the fluid distribution member contains two or ........................ &quot; ··· &quot; &quot; · 'Multiple layers of this material are randomly overlapped or made into a bonded laminate structure. Between these layers can be configured with other particles' network, or fibrous intermediate layer. Printed by the Central Committee of the Ministry of Economic Affairs Employee Consumer Cooperatives— · ———— C. Pack— (Please read the precautions on the back before filling out this page) K4 The multilayer material of the present invention can also be used with different compositions or proportions One or more constituent elements of To demonstrate only one of many possible forms, the fluid distribution member 24 may contain a three-layer laminated structure including twisted and crimped fibers with approximately 45% chemical strengthening of the upper and lower sublayers, approximately 45% eucalyptus fibers and approximately 10% two components Fiber composition. In the meantime, a layer of fine particles has absorbed the gelling material. The layers or sub-layers of the fluid distribution member according to the invention may also have comparable basis weights and / or densities. The absorbent core 25 of the sanitary napkin 20 in the preferred embodiment described in FIG. 1 should also contain-random thin soil surface layer or a ^ distribution between the 27 and the surface layer 22-22 (CNS) A disgusting (21〇97mm 5 ~~~-Ministry of Economic Affairs Central Falcon Bureau shellfish consumer cooperation du printed A7 ------- --__ B7 V. Invention description (^ ~- — ~ 'One—If necessary, it can be mixed with sanitary napkins 20 and additional absorbent structures such as storage members can be made of sanitary napkins or other absorbent materials commonly used in a variety of liquid-absorbing materials, such as ground, generally known as air-laid wood. Pulp. Examples of other suitable absorbent materials include rolled cellulosic plugs; melted polymers including coforms, chemically strengthened or cross-linked cellulose fibers; synthetic fibers such as rolled polyester fibers; peat moss ; Tissue paper including thin packaging paper and thin laminates; absorbent foam; absorbent sponge; superabsorbent polymer; absorbent gelling material; or any similar material or combination of materials, or mixtures thereof. Such additional layers may be included in Above or below the fluid distribution member 25, and / or between the fluid distribution member 25 and Another component is between the intake layer 27. An exemplary absorbent structure for the absorbent core of the present invention was issued on August 21, 199 to Osborne US Patent No. 4,950,264 titled "Thin Flexible Napkin η; September 9, 1986 The US patent 4,610,678, issued to Weissman, was titled high density absorption structure on May 30, 1989. The US patent 4,8 34,73 issued to Alemany on May 30, 1989 "Title is low The high-density absorption member of the density and low basis weight uptake belt &quot;; and the European Patent Application No. 0,198,683 published on October 22, 1986 under the name of Duenk by Bao Yan Company. These patents are here For reference, in the preferred embodiment of the present invention, an ingestion layer (etc.) 27 can be provided between the patch 22 and the distribution member 25. The ingestion layer can quickly collect and temporarily keep discharged body fluids and help transport fluids from the start From the fluid contact point to the other parts of the ingestion layer and the absorbent core. There are several reasons why improving the delivery of secretions is important, including providing a more uniform distribution of secretions throughout the absorbent core and allowing the production of thinner sanitary napkins. 20. Can be included in one or two All directions (ie in x_y 平 _-23-_ this paper scale is applicable to the Chinese National Standard (CNS) A4 specification (210X 297 Gongqing) '&quot;. Loading ------ Order ------ fJ ( Please read the precautions on the back before filling out this page) A7

5. Description of the invention (a) In-plane and / or Z-direction) Liquid delivery. The intake layer may be composed of several different materials including non-woven or woven mesh of synthetic fibers such as polyester, polypropylene or polyethylene, natural fibers such as cotton or cellulose, blends of such fibers, or any similar materials or Material combination. Examples of sanitary napkins with an intake layer and a face sheet are U.S. Patent Application No. 07 / 810,774 filed on December 17, 1991 in the United States issued to Osborne, US 4 950 264, and Cree, etc. This is described in more detail in the absorbent article of the fusion layer. All materials are referenced here. In the preferred embodiment, the ingestion layer can be combined with the dough sheet by any conventional method of connecting the mesh structure. It is preferably fused as described in more detail in the above-mentioned Kelu application. The back sheet 23 is liquid-impermeable (such as menses and / or urine), preferably made of a thin plastic film, but other flexible liquid-impermeable materials can also be used. I, Rouhe &quot; is used here to refer to materials that are compliant and easily adapt to the general shape and contours of the human body. The back sheet 23 prevents the absorbed secretions contained in the absorbent core 25 so as not to wet items that contact the sanitary napkin such as shorts' pajamas and underwear. The back sheet 23 may then contain a woven or non-woven material 'polymer film such as a thermoplastic film of polyethylene or polypropylene, or a composite material such as a film-coated non-woven material. The back sheet is preferably a polyethylene film having a thickness of from about 0.012 mm (0.5 mii) to about 0.051 mm (2.0 mil). Exemplary polyethylene film is the name P18-0401 manufactured by Ci〇pay Corp. Of Cincinnati, Ohio and the name XP-39385 of Ethyl Corp., Visqueen Division Of. Terre Haute, Indiana. The backsheet should be embossed and / or matte finished to make it look more cloth-like. In addition, the back sheet 23 can allow vapor to escape from the absorbent core 24 (i.e., breathe) while still preventing secretions from passing through the back sheet 23. The face sheet 22 is compliant, soft, and does not irritate the wearer's skin. The face sheet 22 is also transparent ___ -24- This paper scale is suitable for the Chinese standard family falcon (CNS) A4 specification (21〇297mm) (please read the precautions on the back side and then fill out this page). The Ministry of Binding Economy Printed by the Central Bureau of Standards 'Consumer Labor Cooperatives --- Printed by the Central Consumers' Bureau of the Ministry of Economic Affairs Employee Consumer Cooperatives V. Description of invention (22 liquids, which can allow liquids (such as menstruation and / or urine) to pass through its thickness smoothly. The sheet 22 can be manufactured from a wide range of materials such as woven and nonwoven materials; polymeric materials such as perforated thermoplastic films, perforated plastic films and hydroreformed thermoplastic films; evening cell foam; reticulated foam; reticulated thermoplastic film and Thermoplastic interlining. Suitable woven and non-woven materials can be composed of natural fibers (such as wood or cotton fibers), synthetic fibers (such as polyester, polypropylene, or polyethylene fibers of polymer fibers) or a mixture of natural and synthetic fibers 3 The preferred face sheet used in the present invention is selected from high-rise non-woven face sheets and perforated formed membranes. Perforated formed membranes are particularly suitable as face sheets because they can permeate body secretions but are not absorbed and have a reduced tendency to allow fluid to pass back. Wet wearer The surface of the formed film that contacts the body is kept dry, thereby reducing body sweating and producing a more comfortable feel for the wearer. A suitable formed film was titled US Patent 3,929,135 issued to Thompson on December 30, 1975. &quot; Absorbent structure with capillary cone holes &quot;; U.S. Patent No. 4,324,246 issued to Mullane et al. on April 13, 1982 &quot; Disposable absorbent article with sweat-resistant face sheet &quot;; August 1982 U.S. Patent 4,342 314 issued to Radel et al. On the 3rd, 'Elastic plastic mesh structure showing fiber-like properties ,; U.S. Patent 4,463,045 issued to Aier et al. On July 31, 1984 Glossy visible surface and macroscopic expanded three-dimensional plastic mesh structure with cloth-like impression and "Meizhuan 5,006,394" "multilayer polymer film" issued to Bayard on April 9, 1991. These patents are in This reference is referenced ° The preferred face sheet of the present invention is the formed film described in one or more of the above patents ”sold by &quot; DRI-WEAVE &quot; on sanitary napkins by Cincinnati, Ohio ’s Bao Yan Company Good concrete example The body surface of the membrane sheet is hydrophilic to -25- This paper scale is applicable to the Chinese National Falcon (CNS &gt; A4 present grid (210X297mm), political-f Please read the precautions on the back before filling this page) Printed by the Ministry of Economic Affairs, Central Standards Bureau, Beigong Consumer Cooperation Du Printed A7 _______ B7 V. Description of the invention (23) Helps the liquid to pass through the face sheet. If the body is not hydrophilic, it reduces the menstrual fluid flowing out of the face sheet instead of flowing into the absorbent core. The faster. A preferred specific example is a polymer material doped with interfacial activation and measured into a molded membrane sheet as described in US Patent Application No. 07 / 794,745 proposed by Aziz et al. On November 19, 1991. Absorbent articles for woven and perforated film covers are described in "". Reference here. Alternatively, the body surface of the patch is treated with an interfacial activator as described above in the U.S. 4,950,254 issued to Osborne Materials to make it hydrophilic, reference is made here. When in use, the sanitary napkin 20 can be kept in position by any of the well-known support mechanisms or attachment methods of the project (the sanitary napkin should not be placed in the user's underwear or shorts, and should be fixed with a tie such as an adhesive. Made of adhesive A mechanism for fixing the sanitary napkin to the shorts and legs is divided. Then part or all of the outer surface of the back sheet 23 is coated with a viscous adhesive. Any adhesive or animal glue used technically for this purpose can be glued here For adhesives, pressure-sensitive adhesives are preferred. Suitable adhesives are

Century Adhesives Corp_ Of Columbus, Ohio; manufactured by Century A-305-IV; and National Starch &amp; Chemical Co. Of Bridgewater, NJ's Instant Lock 34-2823. Suitable adhesive bonds are also described in US Patent 4,917,697. Before the sanitary napkin is placed for use, the pressure-sensitive adhesive is typically covered with a movable release liner to keep the adhesive from becoming dry or sticking to the shorts legs and other parts of the surface before use. Appropriate release of the lining is also described in the above-mentioned U.S. Patent 4,917,697. Any release liner available for general-purpose products for this purpose can be used here. Non-limiting examples of suitable pepper releases are BL30MG-A Silox E1 / 0 and BL30MG-A Silox 4P / 0, both of which are manufactured by Akrosil Corporation. _____ -26-'s Zhang scale is applicable to ¥ National Standard Rate (CNS) A4 specification (210X 297mm) &quot; --- «------ C 威 — (Please read the precautions on the back before filling in this Page) When ordering the sanitary napkin 20 of the present invention, the release is removed, and then the sanitary napkin is placed in the short jersey to contact the shorts. The adhesive keeps its sanitary napkin positioned in the shorts during use. Figure 2 shows a diaper! Preferred specific examples of 〇〇-shaped disposable absorbent articles. The term diaper is used here to refer to clothes generally worn by babies and incontinent persons, worn around the lower torso of the wearer. However, it should be understood that the present invention can also be applied to other absorbent articles such as incontinence shorts, incontinence pads, training shorts, diaper inserts, sanitary napkins, facial tissues, and tissues. The diaper 100 depicted in Figure 2 is a simplified absorbent article that can represent the diaper before putting on the wearer. However, it should be noted that the present invention is not limited to the specific form or form of the diaper shown in FIG. 2. Fig. 2 is a perspective view of the diaper 100 of the present invention in an uncontracted state (i.e., release-cut elastic-induced contraction). A part of the structure is cut to more clearly show the structure of the diaper 100. The portion of the diaper 100 that contacts the wearer faces the reader. The diaper 100 shown in FIG. 2 preferably contains a liquid-permeable face sheet 1004; a liquid-impermeable back sheet 102 connecting the face sheet ι〇4; and a middle sheet 104 and the back sheet 102之 absorbing core 10〇6. It may also include additional structural features such as elastic members and binding devices for positioning the diaper on the wearer (such as tape binding devices, etc.). The Ministry of Economic Affairs 4 * Central Standards Bureau employee consumer cooperative printed face sheet 104, back sheet 102 and absorbent core 106, although it can integrate a variety of well-known forms, a preferred form was issued on January 14, 1975, U.S. Patent 3,860,003 ( Boolean Buell). The preferred form of disposable diapers in this article was also issued on February 28, 1989 (Aziz et al.) US Patent 4,808,178; issued on September 22, 1987 (Labor Lawson) US Patent 4,695,278 ; And published in US Patent 4,816,025 issued on March 28, 1989 (Foreman Foreman), all references. -27- The scale of wood paper is applicable to the Chinese National Suspension Rate (CNS) Μ specification (2 丨 0X297 public health) A7 B7 printed by the Employee Consumer Cooperative of the Central Standard Falcon Bureau of the Ministry of Economic Affairs V. Description of invention (25) Figure 2 shows the comparison of diaper 100 In a preferred embodiment, the top sheet 104 and the back sheet 102 extend together, and the length and width are generally larger than those of the absorbent core 106. The top sheet 104 is connected to the back sheet 102 and the outer edge of the diaper 100 is formed thereon. The edge defines the periphery or side of the diaper 100. The edge includes an end 101 and a longitudinal edge 103. The patch 104 conforms, feels soft and does not irritate the wearer's skin. In addition, the patch 104 is liquid-permeable, allowing liquid to penetrate its thickness smoothly. Suitable panels 104 can be manufactured from a wide range of materials such as porous foams, mesh foams, perforated plastic films, natural fibers (such as wood or cotton fibers), synthetic fibers (such as polyester or polypropylene fibers), or natural and Synthetic fiber combination. The face sheet 104 is preferably made of a hydrophobic material to isolate the wearer's skin from the liquid in the absorbent core 106. A super-facial sheet 104 contains fixed-length polypropylene fibers of about 1.5 dinir, such as

Hercules 151 polypropylene sold by Hercules, Inc. Of Wilmington, Delaware. As used herein, &quot; fixed length fiber &quot; refers to fibers having a length of at least about 15 9 mm (0.62 inches). There are many manufacturing techniques that can be used to manufacture the dough sheet 104. For example, the patch 104 can be reverse woven, non-woven, silk-bonded or combed. Preferably, the topsheet is combed and thermally bonded using methods well known to those skilled in the fabric industry. The dough sheet 104 preferably has a weight of about 18 to about 25 grams per square meter, a minimum dry tensile strength of at least about 400 grams per centimeter in the machine direction and a wetness of at least about 55 grams per centimeter in the machine direction pull. The liquid-impermeable backsheet 102 is preferably made of a thin plastic film, but other flexible liquid-impermeable materials can also be used. Backsheet 102 resistance absorption core! The secretions absorbed in 06 wet items that contact the diaper 100 such as bed sheets and underwear. The lozenge 102 should be about 0.012 mm (0.5 mil) to about 〇.〇05 l cm (2.0 -28- without paper and very large, but applicable to the Chinese National Standard (CNS) Α4 specification (210X 297 mm ------ ---- ¾ clothing-- (Please read the precautions on the back before filling out this page)

K A7 B7 310272 Fifth, the invention description (26) mil) of the polyethylene film, can also use other soft and impervious materials. As used herein, &quot; flexible &quot; refers to materials that conform to and easily fit the general shape and contours of the wearer's body. Suitable polyethylene film is the commercial name No. 8020 film manufactured and sold by Monsanto Chemical Company. The backsheet 102 is preferably embossed and / or matte finished to provide a more cloth-like appearance. In addition, the 'back sheet 102 may allow steam to escape from the absorbent core 106 while still preventing secretions from passing through the back sheet 102. The size of the backsheet 102 is determined by the absorbent core IO06 and the correct diaper design selected. Preferably, the backsheet 102 has a modified hourglass shape extending out of the absorbent core IO06 by a minimum distance of at least about 1.3 to about 2.5 cm (about 0.5 to about 10 inches) around the edge of the whole diaper. The face sheet 104 and the back sheet 102 are connected together into any suitable pattern. The term "connection" used herein includes a form in which the face sheet 104 is directly attached to the back sheet 102, the face sheet 104 is directly joined to the back sheet 102, and the face sheet 104 is attached to the intermediate member in sequence. The backsheet 102 is indirectly connected to the backsheet 102 configuration. In a preferred embodiment, the inner sheet 104 and the back sheet 102 are directly fixed to each other at the edge of the diaper via an attachment mechanism (not shown) such as an adhesive or any other method known in the art. For example, a uniform continuous adhesive layer, a patterned adhesive layer, or an arrangement of separate adhesive lines or dots can be used to fix the face sheet i〇4 to the back sheet 1. A tape tie (not explicitly shown) is typically applied to the back waistband area of the diaper 102 to provide a tie mechanism to keep the diaper on the wearer. Adhesive tapes can be attached to any technique ^ known last week-such as "published in the United States called Post to Boer = 3'848" 594, ㈣i i these tape oaths or other typical diaper binding mechanism Use at the corner of the diaper i⑽. The Guanjia Standard (CNS) Λ4 specification (21Gx29 · ^^ · I-; ------ ^-installed ------ ordered ------ Γ line J (please read first Note on the back and then fill out this page) Central Standards of the Ministry of Economic Affairs, printed by the Beibei Consumer Cooperatives -29- Printed by the Central Standards Bureau of the Ministry of Economics, printed by employees ’cooperatives A7 B7 V. Description of inventions (27) Flexible members (also not clear performance ) Arrange the periphery of the adjacent diaper i 〇〇, preferably along each longitudinal side 103, so that the elastic member can easily pull and hold the diaper 100 against the wearer's leg. Or the elastic member can be disposed adjacent to any one of the diaper 100 Or both sides are used as waist belts or leg folds. For example, an appropriate waist belt is published in US Patent 4,515,595 issued on May 7, 1985 by Kivit (Kievit) and others. Reference is also made. In addition, manufacturing of #tight members that can be elastically contracted The applicable method and device are described in US Patent 4, 〇81,301 issued on March 28, 1978 (Boolean), which is incorporated by reference. The elastic member is fixed to the diaper 100 by elastically contracting to make it into Normally not in tension, the tightening member can effectively shrink or gather the diaper 1〇c ^ the tightening member can be in at least two ways It can be fixed in the case of elastic contraction a. For example, the elastic member can be stretched and fixed in the diaper 100 without contraction. Or the diaper 100 can be contracted by pleating, for example, when the elastic member is not relaxed or tensioned. In condition, it is fixed and joined to the diaper 100. The elastic member can extend a part of the length of the diaper 100. Alternatively, the elastic member can extend the full length of the diaper 100 or any other length suitable for supplying the elastic contraction line. The length of the diaper is determined by the design of the diaper. The elastic member can take many forms. For example, the width of the elastic member can be changed from about 0_25 mm (0.01 inch) to about 25 mm (1.0 inch) or more; the elastic member can be made of a single strand The elastic material may consist of several parallel or non-parallel elastic materials; or the elastic member may be rectangular or curved. Furthermore, the elastic member can be fixed to the diaper in any of several ways known in the art. For example, the elastic member can Supersonic bonding. Use multiple bonding patterns to heat and pressure seal the diaper 100 or simply glue the elastic member to the diaper 100. The absorbent core 106 of the diaper 100 is located on the face sheet 104 and the back Between 1〇2. Suction --Μ ------- ^-装-(Please read the precautions on the back before filling in this page) Line 丨 · -30- ^ 0272 ^ 0272 Central Ministry of Economic Affairs A7 printed by the quasi-bureau staff for consumer cooperation V. Description of the invention (28) ~~ — The core 106 can be made in a variety of sizes and shapes (such as rectangular, hourglass, misaligned *. But the total absorption capacity of the absorbent core 106 should match The intended use of the absorbent article or diaper is designed for liquid loading. The size and absorption capacity of the absorbent core 106 varies to accommodate wearers ranging from infants to adults. As shown in FIG. 2, the absorbent core 106 includes fluid distribution according to the present invention Member 108. In the preferred form depicted in FIG. 2, the absorbent core IO6 preferably contains an ingestion layer or member 110 in fluid communication with the fluid distribution member 108, and is located between the fluid distribution member 108 and the face sheet 104. The intake layer or member 110 may be composed of several different materials, including non-woven or woven mesh synthetic fibers such as polyester, polypropylene, or polyethylene, and natural fibers including cotton or cellulose, a blend of such fibers, or Any similar material or combination of materials. In use, the diaper 100 is applied to the wearer by placing the back waistband area under the wearer's back, and pulling the rest of the diaper 100 between the wearer's legs so that the front waistband area is positioned across the front of the wearer. Subsequently, it is preferable to fix the tape or other ties to the outward-facing area of the diaper 100. Disposable diapers or other absorbent articles incorporating the fluid distribution member of the present invention are easy to distribute and store liquid more quickly and effectively, and remain dry due to the high absorption capacity of the fluid distribution member. Disposable diapers incorporating the fluid distribution member of the present invention can also be thinner and softer. The specific composition, basis weight, and density characteristics of the fluid distribution member according to the present invention are customized to meet the practical needs of a particular absorbent article or finished product. Important product parameters that should be considered when selecting a particular fluid distribution component material include: the full size of the absorbent article; the volume of fluid that the product must absorb; and the characteristics of the fluid to be absorbed. Other considerations that may be important depend on the practicality of the specific product or absorbent article. -31-___ This paper scale is universal Chinese National Standard (CNS) Λ4 specification (210X297mm) ________ ___ I —i.'C &quot; I installed-(please read the precautions on the back before filling this page) -bookmark ! 0272 A7 B7 V. Description of the invention (29) The range of useful ingredients of the constituents is discussed in more detail in the previous article. Exemplary basis weights and densities of materials suitable for use in absorbent articles include materials with basis weights between about 15 and about 350 gSm and densities between about 0.03 and about 〇2〇 g / cc. Density can be calculated from the basis weight and thickness measured at a specified closing force such as 0.20 psi using the following formula: Working density (g / cc) = basis weight (gsm) / [10,000 X thickness (cm)] fluid according to the invention The distribution member may also deviate from a uniform cross-section, density, basis weight, and / or composition. Therefore, depending on the specific application, it may be required to establish the stature in any one or more directions within the component. Although specific examples of the present invention have been illustrated and described, those skilled in the art will be able to make various other changes and modifications without departing from the spirit and scope of the present invention. Therefore, it is proposed to include all changes and modifications within the scope of the present invention in the appended patent request section. --- 11 ------ ^-skirt-- (Please read the precautions on the back first and then fill in this page. J Line J --- Ministry of Economics Central Bureau of Economics and Technology, Beigong Consumer Cooperation, Social Printing-32 Clothing The paper size is in accordance with Chinese National Standard (CNS) A4 specification (210X297mm

Claims (1)

Patent Application No. 85102498 Amendment of Chinese Patent Application Profile (December 1985) A8 B8 C8 D8 Application for Patent Scope Printed by the Ministry of Economic Affairs Central Standards Bureau Employee Consumption Cooperation 1. An absorption member for distributing and storing body fluids, the The absorbent member includes: (a) about 20% to about 80% chemically strengthened, twisted, crimped, expanded weave; (b) about 10% to about 80% eucalyptus high surface area fibers; and (c) about 〇 % To about 50% of thermoplastic bonded weave. 2. The absorbent member according to item 1 of the patent application scope, wherein the absorbent member contains about 45% to about 60% of chemically strengthened twisted and crimped expanded fibers. 3. The absorbent member according to item 1 of the patent application scope, wherein the absorbent member contains about 30% to about 45% of Eucalyptus high surface area fibers. 4. According to the patent application scope item 1, about 5% to about 15% of thermoplastic adhesive fibers. 5. The absorption member according to item 1 of the patent application park is about 45 ° /. The chemically strengthened twisted crimped cellulose fibers, about 45% of them are high surface area fibers, and about 10% thermoplastic binder fibers. 6. The absorbent member according to item 丨 of the patent application scope, wherein the thermoplastic binder fiber contains thermoplastic two-component binder fiber. 7. Absorbent member according to item i of the patent application garden. Wet, mesh structure. 8. Absorbent member according to item 1 of the patent application. The accumulated fiber contains high-surface-area eucalyptus fibers. 9. The absorption member is mechanically softened according to item 1 of the patent application scope. 10.—Absorption structure for distribution and storage of body fluids, (a) —Liuya ingestion member; and wherein the absorption member contains the absorption member contains the absorption member contains the eucalyptus high surface where the absorption member is The absorption member contains: (Please read the precautions on the back before filling out this page). Binding i in. A8 Βδ C8 D8 The scope of patents requested in the printing and assembly of the Employee Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs (b)-fluid distribution components; the fluid distribution components include : (I) about 20% to about 80% of chemically strengthened and crimped swelling fiber »(ii) about 10% to about 80% of Eucalyptus high surface area fiber; and (iii) about 0% to about 50% Thermoplastic binder fiber. 11. The absorbent structure according to item 10 of the patent application scope, wherein the absorbent structure further includes a second fluid distribution member, including: (a) about 20% to about 80% of the chemically strengthened twisted expanded woven fabric; (b) about 10% to about 80% of Eucalyptus high surface area fibers; and (c) about 0% to about 50% of thermoplastic binder fibers. 12. The absorbent structure according to item 10 of the patent application scope, wherein the fluid distribution member contains about 45% to about 60% of the chemically-strengthened twisted expanded fiber. 13. The absorbent structure according to item 10 of the patent application scope, wherein the fluid distribution structure contains about 30% to about 45% of Eucalyptus high surface area fibers. The absorbent structure according to item 10 of the patent application scope, wherein the fluid distribution member contains about 5% to about 15% of the thermoplastic bonded woven fabric. 15. The absorbent structure according to item 1 of the patent application scope, wherein the fluid distribution member and the second fluid distribution member have different compositions. 16. An absorbent article capable of ingesting, distributing and storing body fluids. The absorbent article contains: (a) — face sheet; _ (b) —back sheet; and (c &gt; an absorbent structure is located between the face sheet and the back Between the sheets, the absorption structure includes a fluid distribution member, the fluid distribution member contains: -2-This paper size is applicable to the Chinese National Standard (CNS) A4g (210X297mm) (please read the precautions on the back before filling in this cornel) . 赛. *-· * Γ A8 B8 C8 D8 #, patent application range (i) about 20% to about 80 ° /. Chemically strengthened twisted crimped expanded fiber (Π) about 10% to about 80% Eucalyptus It is a high surface area fiber; and (iii) about 0 ° /. To about 50% thermoplastic adhesive fiber. 17. Absorbent article according to item 16 of the patent application scope, wherein the absorbent article contains a diaper. Μ. According to the patent application The absorbent article of Scope 16, wherein the absorbent article contains menstrual rectification. 19. A method of making absorbent members for the distribution and storage of body fluids, the method includes: (a) making a blend of fibrous materials, containing: (i ) About 20 ° /. To about 80% of chemically strengthened twisted expanded fiber * (ii) about 10% to about 80% of Eucalyptus high surface area fibers; and (iii) about 0 ° /. to about 50% of thermoplastic binder fibers; (b) heat bonding of these thermoplastic fibers. 20. According to patent application The method of item 19 in the scope, in which the production steps include a wet-laying process. (Please read the notes on the back before filling out this page) Packing. This paper is printed by the Central Bureau of Standards of the Ministry of Economic Affairs. The paper size is suitable for China. National Standard (CNS) A4 standard · grid (210X297mm)