TW567061B - Unitary absorbent cores having profiled strata and improved fluid absorbency performance - Google Patents

Abstract

Disclosed are absorbent structures having y-directional profile in density and superabsorbent polymer particle content. The structures include zones having higher density and higher superabsorbent polymer particle content and zones having lower density and lower superabsorbent polymer particle content. Also disclosed are methods for preparing absorbent structures having y-directional profile in density and superabsorbent polymer content.

Description

567061

Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs

Related Applications The scope of this application's patents is based on the United States Provisional Patent Application Serial No. 60/166489, filed on the basis of the 丨 Qing Years, Sichuan, and US Provisional Patent Application Serial Number 60/211090, filed on June 12, 2000, and US Provisional Patent Application No. 60 / 211〇91, filed on June 12, 2000, is hereby incorporated by reference. FIELD OF THE INVENTION The present invention relates to the field of unit absorbent structures for use in absorbent articles, in which one or more layer-like variables of the absorbent structure are in the y direction, and also relate to basis weight i, the content or density of functional particles. Or multiple properties and methods used for the generation of the structure. BACKGROUND OF THE INVENTION Absorbent structures are widely used in disposable absorbent articles, including baby diapers, adult incontinence products, sanitary napkins and the like. These and other absorbent articles typically have a disposable absorbent structure as the central body to absorb and retain body fluids. The absorptive centrosome is usually a liquid-permeable top layer, whose function is to allow liquid to pass through the centrosome, and a liquid-impermeable back layer, whose function is to hold the fluid and to prevent the fluid passing through the centrobody from reaching the The outer covering of the absorbent article forms a sandwich structure between them. The absorbent structure used as a central body for baby diapers and adult incontinence pads usually contains a fibrous pad or net made of defibrated, broken, softened, hydrophilic cellulose fabrics. The center body may also contain functional particles such as superabsorbent polymer (superabsorbent polymer) particles, fine particles, and thin. This paper is sized for China National Standard (CNS) A4 (210 X 297 mm)

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Employees of the Intellectual Property Bureau of the Ministry of Economic Affairs have printed sheets or fibers in consumer cooperatives (all called "particles,"). In recent years, the market has increasingly demanded thinner and more comfortable absorbent articles. Such articles can be used by reducing the use of The thickness of the structure of the diaper center body is obtained by increasing the amount of functional particles and calendering or pressing the center body to reduce the calipers and therefore increasing its density. However, as a high density object used as a center body, it is not Lower-density centroids absorb liquid quickly, because densification of the centroid produces a smaller effective pore size. Therefore, to maintain proper liquid absorption, it must provide a A low-density layer with a larger pore size to increase the absorption rate of the liquid discharged on the absorbent. The low-density stack generally refers to an acquisition layer. Most layered absorption center body designs include a more complex The manufacturing method of a disposable diaper is, for example, usually made of suitable loose soft cellulose during the conversion process Such a cellulose material usually cannot be effectively formed into a flat shape in advance because it does not have sufficient fabric strength, which is due to its lack of fiber-to-fiber bonds or tangles, so it cannot be directly deployed in an absorbent pad manufacturing equipment. It is decorated or treated on it. Some absorbent articles, such as ultra-thin feminine tampons, are usually made of roll-shaped non-woven fabric. This roll of pre-absorbent central body material is directly unrolled as a feed into the absorbent body. Object conversion equipment, and for soft fur based products, such as diapers and incontinence pads, the defibrillation step is normally not needed. The nonwoven web is generally bonded or merged together to make it sufficient during the softening process The strength can be treated. The absorbent structure made of this nonwoven fabric can also contain superabsorbent polymer particles. However, the paper size it uses the Chinese National Standard (CNS) A4 specification (210 X 297 mm)

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567061 Printed A7 by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs " '--------- V. The flexibility and softness of the invention description (4), but at the same time it may be easy due to the poor integrity during use To disintegrate. As another example, some bond centers, such as air-laid centers made of cellulose staple fiber pulp that is branched to a density greater than 0.35 grams per cubic centimeter (g / cc), have dry integrity, but No wet integrity and poor fit. An absorbent article having improved softness and flexibility has been disclosed in U.S. Patent Application Serial No. 09 / 475,850, filed on December 30, 1999. However, it is still necessary to further improve the absorptive power of these structures by mixing a larger amount of superabsorbent polymer objects, while maintaining the high fluid extraction efficiency of these structures. The absorbent structure made of a nonwoven fabric may contain superabsorbent polymer particles to maintain sufficient absorption capacity. However, the addition of superabsorbent polymer particles to commercially available absorbent structures currently has some limitations. If the concentration of the superabsorbent polymer particles in the absorption structure as the center is too high, gel blocking may occur, and the liquid acquisition rate and redistribution in the center will become too low to meet the Absorb the function of centrosome. When the adjacent superabsorbent polymer particles swell, they will form a barrier so that the liquid that cannot be absorbed by the superabsorbent polymer particles is immediately absorbed. As a result, access to the liquid on the unexposed superabsorbent polymer particles is blocked by the swollen, gelled superabsorbent polymer particles. When the gel is blocked, as opposed to absorption, a pool of water is generated in the center. As a result, most of the central body is still unused, and the absorbed central body may be damaged (leakage). Due to gel blocking caused by high concentration of superabsorbent polymer particles, the central body will be reduced as a result. This paper size applies Chinese National Standard (CNS) A4 (210 X 297)

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Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 567061 V. Description of the Invention (5) Permeability or fluid flow, especially when the absorbent product is under pressure. -Reduce gel blocking and maintain centrosome permeability, and an effective way to obtain fluid absorption and redistribution is to limit the ratio of superabsorbent polymer particles to substrate fibers in the absorbent structure used as the centrosome. In this method, there is sufficient separation between the particles, so that after the particles are exposed to the liquid and have been swollen, their parts will contact the adjacent particles, and the free liquid can move to the unexposed Of superabsorbent polymer particles. Unfortunately, the concentration of superabsorbent polymer particles confined in the absorption centrosome also limits the extent to which the centrosome can be made thinner and closer. To avoid gel blocking, the concentration of superabsorbent polymer particles in existing commercial absorption centrosomes is 20% to 50% of the weight of the centrosome. However, even if the concentration of the superabsorbent polymer particles is limited, the absorption centrosomes will have poor fluid capture rates. In the current commercial disposable absorbent articles, the absorbent structures as the central body can be composed of several layers of material on the conversion line. Generally, these multilayered absorbent centrosomes contain one or more layers that can vary in width. Wherein at least one of the stacks in the absorption center body is narrower than the entire width of the center body. The existence of this modified stack in these commercial absorption center bodies can improve performance and reduce raw material costs by marking the absorption material where it is most needed, and removing materials where it is not needed. Existing techniques used in the manufacture of the absorptive core body include the basis weight of the central body variable included in the conversion line to combine the above laminations or absorbent materials to produce the layered absorptive core body. This paper size is applicable to China National Standard (CNS) A4 specification (210 X 297 mm) ------ ^ --- 丨 1 installed -------- ordered -------- -Line · tm (Please read the notes on the back before filling this page) 567061 A7

See note on page I

Order 567061 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs

Functional particle content or density material—or multiple properties that change the direction of the other—the purpose is to provide _ a kind of manufacturing materials containing one or more layers of multi-layer absorbent materials, wherein the basis weight, function The method of absorbing the centrosome in the direction of the center of the particle content or density of the variable particle or multiple properties. A further object of the present invention is to combine several absorption materials together on the conversion line via the airflow laying method to produce a multilayer absorption center body to prepare a unit absorption center body, thereby increasing the conversion efficiency. A further object of the present invention is to introduce a density gradient in the y. Direction into the elemental absorption central body. Another object of the present invention is to provide the control unit with an increased absorption of the central body, so as to provide greater flexibility for product developers. Another object of the present invention is to improve product performance by placing an absorbent material in an unused unit-absorbent centrosome. Another objective of the present invention is to form an absorbent centrosome with improved flow taking and suppression, and reduced leakage potential. A further object of the present invention is to simplify the conversion method of the final product by reducing the number of layers in the absorbent structure. In a first embodiment, the present invention relates to an absorbing structure having a y-direction. The cross-section contains one or more layers, at least one of which is made of a series of continuous unit operations, and contains functional particles and has , A y-direction variable. This layer is made by a series of continuous unit operations. The first and second areas are in contact with each other, where the first area.

567〇61 Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 ^^ --B7 _ V. Description of the invention (8) Souther density, higher functional particle content and higher basis weight than the second area One or more of them. In the second embodiment, the present invention is related to containing functional particles and having fluid storage and retrieval efficiency (fluid retrieval and storage efficiency), as defined herein, higher than 50. In this embodiment, the structure has a variable in the y direction and includes one or more layers, at least one of which includes first and second regions in which the first layer is in contact with each other, wherein the first region is larger than the second region. One or more of higher density, higher functional particle content, and higher basis weight. In a further embodiment of the first and second embodiments, the present invention relates to a structure of the first region having a higher density and a higher basis weight than the second region, or a structure higher than the second region. Structure of functional particle density. In some embodiments, the first region is deposited on the side of the absorbent structure. In another embodiment, the structures include third and fourth regions, wherein the third region has a higher density and a higher functional particle content than the second and fourth regions. In a particular embodiment of the above structures, the structure includes a plurality of layers, at least one of which has a major surface area that is less than 80 percent of the relative major surface area of the other layers. In some embodiments, the y-direction variable of the structures of the present invention may be a single layer with a y-direction variable, or the y-direction variable may be a majority layer with a y-direction variable. Furthermore, at least one layer may have a substantially uniform density or basis weight. In some special embodiments, the structure can also have 2_direction variants. The paper size can be adapted to the Chinese National Standard (CNS) A4 (210 X 297 mm) 11.1 ^ --- !! ------ Order --------- Line · ----I (Please read the notes on the back before filling this page) 11 567061 A7 -------- B7 V. Invention Description (9) Amount. In the above-mentioned embodiments, the structures include fibers, natural and / or synthetic fibers. Suitable fibers are those containing at least percent moisture retention and at least 25 percent crimped fibers. In the above embodiments, the structures may be composed of a binder including a liquid binder (such as a latex binder), a thermoplastic powder, a thermoplastic fiber bicomponent fiber, and a mixture thereof. The amount of the binder, for example, may be from 0.1% to 10% of the structure. The present invention also relates to the above-mentioned embodiments, and further includes an acquisition layer in which the fluid is in contact with the first region, the second region, or the first region and the second region simultaneously. The capture layer may include synthetic substrate fibers bonded together with an adhesive, wherein the length of the substrate fibers may be between about 2 and about 15 mm. In any of the above-mentioned embodiments, the basis weight of the first zone is from about 50 square meters (gsm) to about 1,000 gSm. The basis weight of the second zone is from about 0.1 gsm to about 800 gsm. In some concepts of the invention, the density of the first region may be between about 0.15 g / cm3 and about 0.25 g / cm3. In addition, in other aspects of the present invention, the content of the functional particles in the first region may be about 10% to about 90% by weight. The content of the functional particles in the first region may be about 0% to about 70% by weight. In a special embodiment of the above structure, the value of the fluid retrieval and storage efficiency is higher than 80. The wet integrity of the structure can also be higher than 4.0 millinewons. The paper size is applicable to China National Standard (CNS) A4 specifications (210 X 297 public love) (Please read the precautions on the back before filling this page) 7 — · Installation- ------- Order --------- Line 1 Printed by Consumer Consumption Cooperative of Intellectual Property Bureau of the Ministry of Economic Affairs 12 567061 Printed by Employee Consumption Cooperative of Intellectual Property Bureau of Ministry of Economic Affairs A7 ------ «2Z ----- V. Description of the invention (10)

Tons / gram weight (mN / gm), softness higher than 80 / J, or flexibility higher than 70 / N. In a special embodiment of the above structure, the structure is composed of a continuous series of unit operation units. One or more materials are produced in which each-layer material formed in a unit operation is selected from fibers, functional particles, binders, carrier structures, and additives. The present invention also relates to disposable absorbent articles, including (A) a top layer through which fluid can penetrate, (B) a back layer through which fluid cannot pass, (0) between the top layer and back layer, and between the first layer and fluid The above-mentioned absorption structure in contact, the structure comprising one or more layers, at least one layer of S active particles, the absorption structure having a y-direction variable containing first and second regions placed in contact with each other, wherein the first region It has one or more of a souther density, a higher functional particle content, and a lower basis weight than the first region, and can be selected. (D) a storage layer between (B) and (c) and in contact with the fluid at (C), comprising fibers and functional particles, and (D) the major area in contact with the fluid at (D) and its surface area Less than 80% of the surface area of the relative major area of (D). In a specific embodiment, the absorption structure (c) may include: (1) a y-direction variable capture layer; and (2) a y-direction variable capture having a higher functional particle content than the capture layer And storage layer. The above mentioned items may be baby diapers, training pants, adult papers that are out of size. Applicable to China National Standard (CNS) A4 (21 × 297). --- · ---.! ----- pack -------- Order --------- line "-(Please read the precautions on the back before filling out this page) 13 567061 Printed by A7, Consumer Cooperatives, Intellectual Property Bureau, Ministry of Economic Affairs- ----- ~ ______ 5. Description of the Invention (11) Prohibited equipment or feminine sanitary napkins. In a specific embodiment, the fluid retrieval and storage efficiency of the objects of the present invention is 50 or higher, preferably 80 or two ', more preferably 100 or higher. In some concepts, the structures of the present invention can be obtained by suspending an absorbent material in a fluid and depositing the material on the surface of a porous formed wire or formed metal wire. The suspension fluid used for the absorbent material may be water or air, but is preferably air. Several forming units are connected in series to form a unit absorbent structure containing several layers of absorbent material. A typical air-laid forming unit operation includes mechanical equipment on one side of the forming web that is designed to receive an air-suspended absorbent material and evenly distribute the absorbent material on the forming web. A vacuum system generally located on the other side of the forming net and acting in concert with the distribution device is an absorbent material for collecting on the forming net. The present invention provides a method for reducing pressure in a specific area in a wide direction, so that one or more properties of the absorbent material gathered on the molding web, such as basis weight, density, or superabsorbent polymer content are displayed. In a preferred embodiment of the present invention, the vacuum used to collect the air-suspended absorbent material is blocked, essentially reducing the pressure in a specific area in the direction of the machine to zero. When the vacuum in a specific area is blocked, the strip coating of the present invention can be formed. In another preferred embodiment of the present invention, the distribution of the air-suspended absorbent material is physically agglomerated in some areas so as to be deposited on the forming wire located in the transverse mechanical direction, and at the same time, Form the strip-shaped layer of the present invention. This paper size applies to China National Standard (CNS) A4 (210 X 297 mm)

----------------- (Please read the notes on the back before filling out this page) 14 Printed by the Employees' Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 567061 A7 ------- B7 V. Description of the invention (12) The present invention provides a method for producing an absorbent material containing a plurality of layers, wherein at least one layer is formed by a series of unit operations, and contains functional particles, and one contains The y-direction variables of the first and second regions arranged in contact with each other, wherein the first region has one or more of a higher density, a higher content of functional particles, and a higher basis weight than the second region Item, the method includes: (1) forming a first layer A composed of fibers and, optionally, functional particles, (2a) forming a second layer b composed of fibers and functional particles, such that B's The main surface is in fluid communication with the main surface of a, and the length in the 乂 direction of 6 is shorter than the length in the y direction of A, or (2b) forms a second layer b composed of fibers and functional particles, so that the first A first and a second region are formed, wherein the first region The second region has a higher density and higher functionality of particle content. In the specific embodiment of the method described above, fibers and functional particles are distributed on the layers formed on the forming mesh of the air-laid method by a forming riser, and the first and The second region is formed by partially blocking the allocation to the second region without blocking the first region. In another embodiment of the method described above, fibers and functional particles are distributed by a forming riser on the layers formed on the forming net of the air-laying method, and the first and The second region is formed by partially blocking the allocation to the second region without blocking the first region. The present invention also relates to an absorbent structure made by the above method. The size of this paper is based on the Chinese National Standard (CNS) A4 specification (21G X 297 mm). ^ 7— # 装 -------- Order --------- line · shoulder (please first (Read the notes on the back and fill out this page) 15 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs

Figure 2c describes the unit absorption structure of the present invention. Figure 3 shows the unit absorption structure of the present invention with a bifurcated y-direction structural variable and containing a superabsorbent polymer. (々A + i] Description of the unit absorption structure of the present invention having three layers, including strip layers; Figures 5a-5d illustrate another embodiment of the unit absorption structure of the present invention; Figure 6 illustrates an absorption structure of the present invention containing two layers, Among them, the upper layer has a y-direction structural variable of the degree of rush and contains a superabsorbent polymer; FIG. 7 illustrates an absorbent structure of the present invention containing two layers, wherein the lower layer has a y-direction structural variable of density and contains a superabsorbent Absorptive polymer; FIG. 8 illustrates a method for manufacturing an absorbent structure according to the present invention; FIG. 9 is a close-up view of the forming net in FIG. 8; FIG. 10 is a through a along the forming net in FIG. Views in the direction of b; 11A and 11B illustrate a testing machine used to test the absorptivity properties of the absorbent structure of the present invention; Figure 12 is a Gurley toughness tester used to test the flexibility of the absorbent structure of the present invention Figures 13A and 13B are used The flexible paper size of the absorbent structure of the present invention is applicable to the Chinese National Standard (CNS) A4 specification (210 X 297 public love) ---- · II;! --- 7- · installation ------- -Order --------- Line · Outer 0 (Please read the precautions on the back before filling out this page} 16 567061 Α7 __ Β7 V. Description of the invention (14 clips for nature; Figures 14A-14C Data chart illustrating the basis weight of samples a to c; Figure 15 illustrates the data chart of the basis weight in the y-direction of samples A to c; Figure 16 illustrates the data chart of the y-direction density data of samples A to c; Figures 17A and 17B illustrate the schematic diagrams of samples d and E; Figures 18A and 18B illustrate the schematic diagrams of samples f and G; and Figure 19 illustrates the relationship between sample η to sample κ moisture resilience as a function of the underlying foundation weight and width. Detailed Description of the Invention All patents and patent applications cited in this specification are incorporated herein by reference. If there is a conflict in terminology, the invention shall prevail. The definition used herein The word "layer," with the plural, refers to a design that places an absorbent material in the The output of the unit operation on the molding surface can use a carrier thin fabric or a web of a forming method. This method can be wet-laid or air-laid, but preferably air-laid. Deposited by the unit operation Materials on the molding surface, including fibers, powders containing additives, and functional particles and binders such as superabsorbent polymers. All of the maggots deposited on the molding surface were considered to be a network, which was applied The job-type program made in the continuous single domain of the object will grow, and the mesh will grow. ----------- Install -------- Order -------- -Line Γ Μ (Please read the notes on the back before filling this page) It is printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 17 567061 Printed by A7 of the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs _________ V. Description of the invention (15) The term "layered variable" as used herein refers to a layer, in which the basis weight, density, or content of functional particles (such as superabsorbent polymer particles) of the layer is included. Changes in the y-direction and [or] ζ · direction (variable). The term "stripe layer" as used herein refers to the special case of a layer-like variable in which the basis weight, density, or functional particle content of one or more absorbent materials in the layer is in the y-direction. A certain distance will be very low or 0. A certain distance of the zero basis weight, density, or functional particle content may be continuous or it may be allocated to discontinuous segments. The allocated segments are at y -The pattern can be distributed uniformly or unevenly in the direction. The very low degree or a certain distance of zero basis weight, density or functional particle content can be symmetrically allocated to the longitudinal axis of the structure, or it can be distributed to the structure. The longitudinal axis is symmetrically distributed. The term "laminated" as used herein refers to a fibrous material that may be treated as a component in an absorbent article. The element absorption central body is an example of a stack. Other stacking examples include a storage and retrieval layer, a fluid-impermeable top layer, and a liquid-impermeable back layer. A series of stacks can be combined into an absorbent article during the conversion process. The stacks can use glue or other adhesives to densify the stacks by thermal bonding or pressure to produce tangles and adhere. Together. As used herein, the term "content" refers to weight percent. Therefore, the content of functional particles in a given layer refers to the weight percentage of functional particles in the layer. The term used herein The "X-direction" refers to the lengthwise direction of the absorbent article 1 in the J figure. When the mesh is formed, the absorbent material is based on the paper size standard (CNS) A4 (210 X 297 male f) ---- · 丨 丨;! --- 丨-·- ------ Order --------- Line · (Please read ^: the above notes before filling out this page} 18 567061 A7 V. Description of the invention (i6) can be deposited in a horizontal or The x-direction is the machine direction (MD) when it is on a flat forming web 2. The term "y-direction" as used herein refers to the width direction of the absorbent article 1 (refer to Fig. 1). Reference In the figure, when the mesh is formed so that the absorbent can be deposited on the horizontal or flat forming mesh 5, the y-direction is across the machine direction (CD). The term used here "Z-direction, refers to the direction into the plane of the absorbent (refer to Figure 1). As used herein, the word" width "refers to the side of the layer to the other-edge The distance measured perpendicular to the longitudinal axis of the structure in the y-direction. The term "basis weight" as used herein is the weight of the mesh per unit area. It is usually measured in grams per square meter. The weight (g / m2silgsm) is expressed. Basis weight is the strengthening property of the mesh. The term "density" as used herein is expressed in grams per cubic centimeter (g / cc) and is defined by the following equation: Density (g / cc) = Basis weight (gSm) / n0_ (square centimeter / square meter, cm2 / m2) x thickness (cm)] As used herein, the term "single core and close structure, or" absorption "Structure" is the structure or core body of the present invention containing one or more layers. When the unit absorbs the core body contains a large number of layers, there is no interface between the layers, that is, -denier After the layers are deposited one by one, they cannot be separated. The absorption structure formed by more than one layer may not use glue or other adhesives between the layers. For example Say, a unit structure can be on a single-line production line, such as a single air-flow laying line (please read the precautions on the back before filling this page) ▼ Install -------- Order ------ --- Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs

-19-567061 A7 B7 V. The description of the invention (l7) was formed. Generally, the air-laying absorption central body contains cellulose fibers, and a mixture of various functional synthetic fibers, functional particles or granules, and additives. The present invention includes an absorbent structure that can be used as a central body with variables of basis weight i, bifurcation, or superabsorbent polymer content in a direction that is perpendicular to the longitudinal axis of the final product. In a particular embodiment, the structure is a variable in the y-direction and the z_-direction. Absorptive centrosomes of prior art generally include layers that cover the entire width of the centrosome. In the existing art, as shown in the second figure, all these layers have the same width. The present invention is used to improve existing techniques by providing an absorbent material for selective placement where it can be used most efficiently. For example, as shown in FIG. 2b, the present invention carefully considers that the absorbent material is placed in the center of the central absorption body of the unit in a -selective manner, where the fluid is isolated to replace the absorbent material The hooks are distributed over the entire width of the pad. When Fig. 2b illustrates the use of layers with different widths, the structure of the present invention will actually appear in Fig. C. The layers with larger widths will not match the layers with smaller widths. The objects are in contact. The resulting structure will be formed in the y-direction and the Z-direction in an amount-a region containing a large basis weight, density, or functional particle content. Similar to placing the absorbent material on the central absorption body t of the unit, which can be used most effectively, this article carefully considers the removal of materials that cannot be effectively used in the single S absorption body. The order line is formed by removal.

This paper size applies the Zhongguanjia standard (CNSM4 specification ⑵ G χ 297 Gongfa J 567061 Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs

.I ":! —! · Install -------- Order --------- line «· (Please read the notes on the back before filling this page) A7 —---- B7 ----—_____ Five Description of the invention (8) The layered variable can be used to reduce the cost of raw materials for absorbent materials that absorb the central body and cannot be effectively used. Referring to Figure 3, where the y-direction and z-direction are the directions indicated by the arrows, the structure of the present invention includes at least one region A, which has a higher basis weight, density, or functional particles (such as superabsorbent polymers) One or more of them, and preferably two such as region A, a region having one or more of a higher basis weight, density, functional particles (such as superabsorbent polymer), and At least one region B, which has a lower basis weight, density, or functional particle content or no functional particles. In a preferred embodiment, the areas A have a higher basis weight than the areas B, and one and preferably two of the areas A can be placed on the edges of the sides of the absorbent structure. For example, the y-direction and / or direction variables can be generated by placing a larger amount of superabsorbent polymer particles and natural or synthetic fibers in narrow channels that create the regions A along the absorbent structure. . These regions are then separated by lower density channels with a lower amount of superabsorbent polymer, or natural or synthetic fibers without superabsorbent polymer, thereby creating region B. Controlling the placement of superabsorbent polymer particles in this way allows the particles to have better containment in the absorbent structure, and allows fluid to flow and perform capillary action more easily along the length (X-direction) of the central body. The flexibility of this material can also be improved, especially including the width of the central body. Furthermore, the structure of the present invention may have been unexpected, even with high fluid absorption at high superabsorbent polymer content. Take the rate, the superabsorbent polymer content is higher than 30 percent. It is known that the absorption central body is up to the size of the paper + CNS A4 specification (210 X 297 public meal 7 21 567061 A7) 5. Description of the invention (l7 7 still cannot be high fluid under the superabsorbent polymer content Retrieval rate, because the permeability of these structures decreases sharply when the daggers become saturated. This effect means that the superabsorbent polymer particles of the mouth swell and close the pores in the absorption central body, which is accompanied by the so-called Absorptive polymer gel blocking. Non-theoretical, it is generally believed that the structure of the present invention has a high rate of superabsorbent polymer because the structures maintain their high pore volume and are in area B. (Having one or more of a lower basis weight, density, or superabsorbent polymer content), even when the absorbent structure is more saturated in the south than it is. It is generally believed that The high-altitude carcass machine in area B can be maintained because the liquids are drawn away from the area by capillary forces to reach the denser area A, where it is retained by the higher concentration of superabsorbent polymer particles. As a result, in At the same time, the structure of the present invention achieves efficiencies in storage and storage efficiency that are unthinkable. Basins This allows to improve the effectiveness of the final absorbent article. For example, a personal hygiene product is used in Leakage can be reduced during use, and the absorption center body can be used better. Increasing the amount of superabsorbent polymer in the absorption center body can also enable manufacturers to make thinner, more absorbent, and more intimate absorption. Object. A measurement that is used to evaluate the absorption properties of a structure is the fluid retrieval and storage efficiency ("FASE"). The fluid retrieval and storage efficiency is a unit value, which is obtained by the fluid. The extraction rate is obtained by multiplying the content of the superabsorbent polymer particles in the absorbent structure. The higher the fluid acquisition rate and the higher the content of the superabsorbent polymer particles, the higher the fluid acquisition and storage efficiency. However, until now, it is difficult to apply the Chinese National Standard (CNS) A4 (210 X 297 mm) to this paper size at the same time (please read the precautions on the back first) (Fill in this page) ▼ Package -------- Order --------- Line 1 Printed by the Consumers' Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs up to 567061 A7 V. Invention Description (2) Wisdom of the Ministry of Economic Affairs Property Bureau employee consumer cooperatives print to high extraction rates and high superabsorbent polymer particle content, because increasing the superabsorbent polymer particle content usually results in more gel blocking and lower permeability, which will reduce the flow rate As desired, the fluid extraction and storage efficiency of the absorbent structure of the present invention is 50 or higher, more preferably or higher, preferably 100 or higher, most preferably 18 or higher Referring to Fig. 3, if the structure of the present invention contains a porous upper layer C, it has substantially no x, y-capillary properties and can maintain a substantially dry surface. This layer can be made, for example, from a synthetic fiber substrate bonded together with an adhesive. In some embodiments of the present invention, the layer is removed at a low density, which comprises a wettable synthetic fiber between 55 and 99 percent by weight, preferably 75 to 90 percent. The majority of this layer of synthetic fibers is a binder material. Due to its relatively low density, large pore size, and smaller wettability compared to other layers under the dagger, this layer c basically does not have X, y-aqueous capillary capabilities. The fluid acts as a solution from the capillary down to the bottom, which is more wettable with smaller pores and denser layers. In the preferred case, the layer may comprise synthetic fibers having a thickness of 2 35 dtex, preferably 6 to 17 dtex. In this embodiment, the length of the synthetic fiber is 2 to 15 mm, preferably 4 to 12 mm. Alternatively, the fibers can be clamped and can have various cross-sectional shapes. Examples of suitable substrate synthetic fibers include polyethylene, polypropylene, polystyrene, polyethylene terephthalate (PET), polyurethane resins, polyvinyl acetate, cellulose acetate, and cellulose fibers . Some hydrophobic synthetic fibers, such as polyolefins, need to be surface treated with a surfactant to reach the surface ----. II £ '---: " I · 装 -------- order- -------- Line · 1 · (Please read the precautions on the back before filling in this page) This paper size is applicable to China National Standard (CNS) A4 size ⑵G χ 297 public issue) 23 567061 A7

Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. The preferred embodiment of the unit absorbing central body of the present invention contains at least one layered layer. A strip-like layer is at a certain distance in the y-direction, where one or more of the basis weight, male, degree, or functional particles (such as superabsorbent polymer) is reduced to a very low level or zero. This very low or zero basis weight, density, or functional particle content—a fixed distance can be continuous or divided into discrete segments. The pieces in the y_ direction can be distributed in a uniform pattern, or in an uneven pattern ^. The very low or zero basis weight can be symmetrically distributed to the longitudinal axis of the structure, or it can be asymmetrically distributed to the longitudinal axis of the structure. Figures 4a-4i are not intended to illustrate that the design contains at least one layer The three-layered absorption structure H 4e, 4f, and 4g contains more than one stripe-shaped absorption structure. As shown in Figure 4g, the strips need not have the same width. As shown in Figure 4, the present invention carefully considers an absorbent structure in which each layer has more than one strip. As shown in Figure 4i, the present invention also carefully considers the strip-like layers that are not at the center of the longitudinal axis of the structure. Figures 4a-4i illustrate the absorption structure in a theoretical manner. In fact, as illustrated in the discussion of Figures 沘 and ^, the layers having a larger width do not join in the layer or the regions of the layer having a smaller width. Figures 5a-5d still illustrate other embodiments of the absorbent structure of the present invention. Brothers 5 a-5 d prove how the structure is constructed layer by layer. In the structures shown in Figures 5a-5d above, the layers with larger widths will not be in the layers with smaller widths or the layers. The paper standards are applicable to Chinese national standards ( CNS) A4 specification (210 X 297 mm) ------- ^ ---- I · shock -------- order --------- line ·-· prepare { (Please read the notes on the back before filling out this page) 24 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs

567061 A7 "丨 · — ___B7 _ 5. The invention is described in (22) domain. These additional embodiments can use vacuum segmentation, which means that the vacuum system is segmented under the forming net of the airflow laying method. The vacuum The system can be divided into a relatively low vacuum area and a relatively low vacuum area. According to the method of the present invention, in order to obtain one of the basis weight, density, or content of functional particles such as superabsorbent polymer Or more areas, the vacuum can be physically blocked in some areas. In other methods of the invention, a barrier or cover can be used to protect the vacuum in the desired area in the invention In another method, the distribution of the air-bonding absorbent material can be physically blocked in certain areas to avoid deposition on the forming wire. Therefore, a seizure of other blockers can be placed Between the forming riser or particle applicator and the forming net to block the deposition of particles or fibers. As a result of this in an absorbent, variables will form in the strict direction. Figure 5a shows that An embodiment of a layered absorbent structure, wherein the bottom layer is formed by blocking the deposition of the particles or fibers on the edges of the forming web, or by dividing the vacuum system into The area of relatively high vacuum in the center of the forming wire and the area of relatively low vacuum at the edge of the forming wire. Therefore, the area with a high basis weight is formed in a relatively real area with a low basis weight of 1. Is formed in a relatively low vacuum region or by blocking the deposition of the particles or fibers. Figure 5b illustrates an embodiment of the present invention that contains most regions in the y-direction that contain relatively high and relatively low basis weights. Figure 5c illustrates an embodiment of the present invention, the paper size of which is applicable to the Chinese National Standard (CNS) A4 specification (21 × 297 mm)

.! · Equipment -------- Order --------- line · ^ Η W (Please read the notes on the back before filling out this page) 25 567061 Employee Consumer Cooperatives, Intellectual Property Bureau, Ministry of Economic Affairs Printing A7 _ B7 5. In the description of the invention (23), the centroid of the central body does not need to conform to the longitudinal axis. Figures 4 and 5 show an embodiment of how the unit absorption central body of the present invention is constructed layer by layer on an airflow laying line. Once the layers have been formed, the present invention provides a method for squeezing or densifying the absorbent material in a uniform manner. The compaction may also be used to provide a unit-absorbent structure that is used as a central body and has a density change in the direction across the machine.

The absorbent structure can also be used as a central body in an absorbent article. In an embodiment of an absorbent article of the present invention, as shown in Fig. 6, the structure of the present invention includes two separate absorbent structures (or stacks), wherein the structures are in contact with each other with a fluid. The structure contains a shorter, upper structure 3 and a longer, lower structure 4. Generally, the bottom surface area of the upper structure 3 is less than 80% of the upper surface area of the lower structure 4. This configuration has the advantage of a single-layer structure, which has better containment and use of the absorbent material during the user's use of the absorbent material. The upper structure of this embodiment in FIG. 6 is a y-section absorption structure, which includes the areas A and B of the embodiment of FIG. 3 (where area A has a higher basis weight, density, or function than area B). -Or more of the particle content) 〇 Another embodiment of an absorbent article, as shown in FIG. 7, the lower structure 5 of the two structure system is above the variable absorption structure name of the present invention containing regions A and B. The surface area of the bottom surface of the structure 6 is smaller than 80 times the area of the upper surface of the structure 5 below. Another example of the two-layer structure is that the upper layer and the lower layer both contain the area A and the invention (please read the precautions on the back before filling this page) ▼ pack-- --I --- order --------- line

567061 Α7 Β7 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs V. Invention Description (24) A variable structure system. Referring to FIG. 6, a system having the above-mentioned two structures is provided to obtain the advantage that the body fluids discharged from the human body are mainly on the front end region 7 and the central region 8 of the absorption central body. This embodiment can place more of this absorption force into the absorption that the liquid discharge cannot reach. Body area. Fibers Some structures of this invention may contain natural fibers' synthetic fibers or a mixture of both natural and synthetic fibers. Particles that can be used for these types of natural fibers in the present invention include softened cellulose fibers made of cotton, softwood and / or hardwood polymer, straw, keaf fibers, chemical, mechanical and / or heat treatment Cellulose fibers, such as keratin fibers obtained from feathers, asparagus, hemp, and flax, and artificial staple fibers made from natural polymers such as cellulose, chitin, and keratin. Cellulose fibers include chemically modified fibers, such as chemically enhanced fibers made with a cross-linking agent, fibers treated with the Messer reagent, and cellulose acetate. Suitable synthetic substrate fibers include polyethylene, polypropylene, polyesters such as polyester (terephthalate), polyamide resins, polyacetate, cellulose acetate, and rayon fibers. Some hydrophobic synthetic fibers, such as polyesters, should be surface treated with a surfactant to increase wetting. Although more than 98% of Alfa is better #, the final purity range of the preferred cellulose fibers of the present invention is at least 98% of Alfa cellulose (α) to 98% of Alfa cellulose, And it's best to have a percent of alpha cellulose. The term "purity" as used herein is the national standard for measuring the existing paper ruler (CNSM4 specification ⑽ X 297). ------ · --- ^-pack ------ --- Order --------- line (please read the notes on the back before filling this page) 27 567061 Printed by A7 ____B7_ ____B7_ Description of the invention (25) The percentage of alfa cellulose. This is a general measurement method in the dissolving pulp industry. The method commonly used in the pulp and paper industry to produce cellulose fibers of various purity is a known technique. The preferred fibers used in areas with a higher degree of basis weight, density, or functional particle content (such as area B in Figures 3 and 4) are those fibers that have a lower water retention value (WRV). Fibers Plain fiber's water retention value (wrv) is an index of the fiber's ability to retain moisture under a given pressure. Cellulose fibers immersed in water are properly swelled, and water is physically retained in the swollen fiber wall. When the aqueous fiber pulp is centrifuged, most of the water is removed from the fibers. However, Even after centrifugation, a part of the water will remain in the fiber, and the amount of water can be expressed as a percentage of the dry weight of the fiber. The fibers with lower WRV values are generally stronger than the traditional soft wool fibers Toughness, and therefore the air permeability of the structure is improved. The preferred water retention value (WRV) of the cellulose fiber of the present invention is less than 85 percent, more preferably between 30 and 80 percent, The best is 40%. The wrv refers to the amount of water based on the dry fiber weight, the fiber samples are soaked, and then centrifuged to remove the water between the fibers, which is still absorbed by the first water and retained. The amount of water that can be absorbed is its ability to swell to saturation. A lower value means that internal crosslinking has occurred. U.S. Patent No. 5,190,563 discloses a method for measuring "1 ^". Preferred fibers for use with lower levels of basis weight, density, or functional particle content (such as area B in Figures 3 and 4) are those with higher curls. The curled shape means that the paper is compliant with Chinese National Standard (CNS) A4 (210 X 297 mm) due to kinks, twists and / or pushes on the paper size (Please read the precautions on the back before filling this page) | Equipment · — Order! A 28 567061

Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs

Curl is defined as the shortening of the portion of the fiber due to kinks, twists, and / or pushes. The curl percentage of the cellulose fiber of the present invention is preferably between 25 and 80% and more preferably 75%. For this invention ... the crimp of the fiber can be measured in two dimensions. The crimp of the fiber is measured by examining the fiber in a two-dimensional plane, measuring the projected length of the fiber as the longest dimension of the rectangle surrounding the fiber, l (rectangular), and the true length of the fiber L (real), and then The fiber crimp factor is determined by the following equation: Curl factor = L (real) / L (rectangular)-i-A fiber crimp index image analysis method can be used to make this measurement and is also disclosed in the US patent Application No. 5,19,563. The fiber crimping can be performed by an alkali method. It is generally used in the pulp and paper industry, and the method of alkalizing the cellulose is a known technique. The other source of the cellulose fibers used in the present invention, particularly in areas (zone B) of lower basis weight, density or functional particle content, is chemically toughened cellulose fibers. As used herein, the term "chemically toughened cellulosic fibers" refers to cellulosic fibers that have been treated to increase the toughness of the fibers under dry and wet aqueous conditions. In the best toughened fibers, 'When the fibers are in a fairly dehydrated, defiberized (meaning individualized), twisted, and crimped condition, chemical treatment includes the use of a cross-linking agent into the paper size Applicable to China National Standard (CNS) A4 specification (210 X 297 mm). ^ — ^ — -------- Order --------- line · (Please read the precautions on the back before Fill out this page} 29 567061 Printed A7 by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs --------- V. Description of Invention (27) Intra-fiber cross-linking. The crimp value of these fibers is greater than 70%, and the WRV value is less than 60%. Toughened fibers that are crosslinked and bonded in individualized form, for example, are disclosed in US Patent No. 5,217,445, issued June 8, 993 And US Patent No. 3,224,946 issued on December 12, 1995. Another source of cellulosic fibers used in this description, especially in areas with low basis weight, density or functional particle content, It is obtained from high-yield pulp, that is, cellulose pulp containing lignin. These pulps are generally chemical -Mechanical pulp (cTMP) fibers or bleached chemical thermomechanical pulp (BCTM) fibers. These fibers are tougher than cellulose fibers with lower or no lignin in dry or wet conditions. For functional particles The functional particles in the absorption central body of the present invention include granules, flakes, powders, granules or the like, which are used as absorbents, odor-controlling agents such as zeolite or calcium carbonate, flavors, detergents, antibacterial agents, etc. And the like. These particles may include any functional powder or other particles up to 3000 microns (# m) in diameter. In a preferred embodiment the particles are superabsorbent polymer particles ("SAP") U.S. Patent Nos. 5,147,343; 5,378,528; 5,795,439; 5,807,916 and 5,849,211 disclose various superabsorbent polymers and methods of manufacture 'are hereby incorporated by reference. These superabsorptions that can be used in the present invention Examples of composite materials include irregular small particles, spherical particle short fibers, and other particulate superabsorbent polymers that are elongated. This paper ruler Applicable Chinese National Standard (CNS) A4 size (210 X 297 mm) 30

.!: 'Lu Zhuang -------- Order --------- Line * *'-(Please read the notes on the back before filling this page)

567061 V. Description of the invention (28) The word "superabsorbent polymer," or "superabsorbent polymer," normally refers to a water-soluble polymer that has been crosslinked. There are known methods for producing hydrogels such as carboxyl polymer electrolytes to produce water-soluble polymers, now called superabsorbent polymers or superabsorbent polymers, and it is well known that these can be used Materials to increase the absorbency of disposable absorbent articles. There is also a known method for obtaining a superabsorbent polymer by a method of crosslinking the carboxylated polymer electrolyte. The superabsorbent polymer particles that can be practically used in the present invention can be obtained from a number of manufacturers, including Dow Chemical (Midland, Michigan), Scotthausen (Green Fort North Carolina) and Chemdal (Arlington, Highlands, Illinois). A conventional polyacrylic-based particulate superabsorbent polymer, which is one of the most commonly used polyfunctional comonomers for crosslinking during polymerization has been a well-known technique. Examples of polyfunctional crosslinking agents are disclosed in U.S. Patent Nos. 2,929,154; 3,224,986; 3,332,909; and 4,076,673. Other water-soluble polymer electrolyte polymers are known to be used in the preparation of absorbers by cross-linking. These polymers include methylphenidate powder, methylphenidate fiber, deacetylated chitin salt, gelatin salt, etc. However, they generally do not need to commercialize mass production to increase the absorption rate of disposable absorbent articles, mainly because the absorption rate is reduced and the cost is increased. Superabsorbent polymers are well known and commercialized. Superabsorbent particle polymers are also described in detail in U.S. Patent Nos. 4,102,340 and Re 32,649. Suitable superabsorbent polymers produce high gel volumes or high gel strengths as measured by the shear modulus of the hydrogel. The paper size of this better superabsorbent polymer is applicable to China National Standard (CNS) A4 size (⑽297). ------- ^ ---- 1-I Pack -------- Order --------- line (please read the note on t-item first and then fill out this page) Printed by the Employees 'Cooperatives of the Intellectual Property Bureau of the Ministry of Economy 31 567061 Printed by the Employees' Cooperatives of the Intellectual Property Bureau of the Ministry of Economy A7 5. Description of the invention (29) Contains a relatively low level of polymer material that can be extracted with synthetic urine (so-called "extractable,"). Superabsorbent polymers are well known and have several commercial An example of this is the source of commercialization. The brand name IM100 (Hoechst Celanese, Portsmouth, Virginia) is an example of grafted polypropylene. The superabsorbent that can be used in other commercializations is the trade name

SANWET (Sanyo Kasei Kogyo, Kabushiki, Japan), SUMIKA (Sumitomo Kagaku Kabushiki; Haishi, Japanese), faVOR (Scott Monson, Garyville, Louisiana) and superabsorbent polymer series (Kant; Aberdeen, Mississippi). The most useful in the present invention are polyacrylate-based superabsorbent polymers. Because in the present invention, superabsorbent polymer particles of any size or shape suitable as an absorption central body can be used. Adhesives If the use of adhesives is preferred 'Examples of adhesives useful in the present invention include solid or liquid types of adhesives. The term "polymer mixture" refers to any compound that can produce interfiber bonds between the fibers of the substrate to increase the integrity of the layer. At the same time, the adhesive can optionally make the fibers and The absorbent polymer particles are bonded to each other. For example, a dispersion of natural or synthetic elastomer latex can be used as a binder. Thermoplastic fibers or powders that are well known in the art can also be absorbed by heating. Structure, bonding to the melting point of the thermoplastic fiber or powder. Other binders that can be used to stabilize the absorbent structure of the present invention include binders that are used to bond cellulose fibers. These agents are included in dispersion in water Polymer, it is coated on the fiber web (please read the precautions on the back before filling this page) --------- Order --------- line. 32 567061 A7 B7 Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs

I. Description of the invention (3G is crosslinked and bonds are produced between the fibers or between the fibers and the superabsorbent polymer particles. These reagents include a variety of different cationic starch derivatives and those containing functional groups that can be crosslinked. Synthetic cationic polymers, such as polyamide resin-polyamine epoxy propane adducts, cationic powder, diacid powder, and the like. Any combination of these appealing polymer conjugates can also be used To stabilize the structure of the present invention. Adhesives suitable for use in the present invention include liquid type adhesives or a liquid carrier, including latex adhesives. Useful latex adhesives include vinyl acetate and propionate copolymers , Ethylene-vinyl acetate copolymers, carboxylated styrene butadiene copolymers, and polypropylene copolymers, as well as commercially available, for example, the trade names of Air Products, Inc., Airbond, Airflex, and Vinac's product, Goodyear Chemical Corporation (Godrich)

Chemical Co.'s Hycar and Geon and Β. · B Fuiier

Company) of Fulatex. On the other hand, the adhesive may be a non-latex adhesive, such as a cement used in an aqueous solution (for example, kymene, dialdehyde starch, chitosan, or polyvinyl alcohol) or epichlorohydrin and analog. In order to specifically join the fibers, and to generally maintain the structural integrity of the unit-absorbent structure, a water-based latex adhesive may be used. Alternatively, the latex adhesive and the thermoplastic adhesive material (fiber or powder) can be joined by heating the thermoplastic adhesive material above its melting point. Suitable thermoplastic bonding materials include thermoplastic fibers, such as heterogeneous thermoplastic fibers ("b1C〇"). The preferred thermoplastic bonding fibers can be described in a wide range of materials, including synthetic and natural fibers, particulates, and Synthetic and natural_

The paper size is suitable for financial and family care standards (CNS) A4 (210 X 297 mm T ------ ^ --- ^ pack -------- order --------- (Please read the precautions for t and n before filling out this page) 33 ^ 67061 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs

A7 -------- Β7 ____ 5. Description of the invention (31) Adhesion of body plate. Hoechst Celanese's Celbond Type 255 bicomponent fiber is an example of a thermoplastic bicomponent fiber. Other suitable thermoplastic fibers include polypropylene, polyester, nylon, and other olefins or modifications thereof. A preferred thermoplastic fiber is a fiber-type AL-bonded-C bicomponent fiber comprising a polypropylene core and an outer shell of an activated copolyolefin. In certain preferred embodiments, the binder in the present invention is a binder fiber containing less than 10% by weight of the superabsorbent polymer particles. In other embodiments of the invention, the bonded fibers contain less than 7% by weight of absorbent structure. The structured airflow paving has one of the improved particle blockers. The absorbent structure can be roll-typed, or other packaging types such as color decoration, and it is especially suitable for disposable objects such as diapers, adult incontinence pads and feminine sanitary napkins. The structure of the present invention is preferably made into an air-laid net. The air-laid web is generally prepared by decomposing or defibrating a cellulose pulp sheet (s), generally using a shredder to form individual fibers. The individual fibers may optionally be mixed with the functional particles and transported by an air stream to one or more forming risers on the air-laid forming web machine. The forming riser then places a layer in the forming web. For example, a ply may contain cellulose fibers, superabsorbent polymers and other functional particles, and bicomponent fibers. In some embodiments, the structures of the present invention include a carrier tissue

The size of this paper is applicable to the Chinese National Standard (CNS) A4 specification χ Norwegian mm) 丨 — # 装 -------- Order --------- line · (Please read the precautions on the back before (Fill in this page) 567061 A7 B7 printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economy V. Invention Description (32). The use of a compacting roll prior to the introduction of these particle regions eliminates the need for the tissue. By using shunts or vacuum barriers, each of these shaped risers is designed to provide regions with a higher basis weight, density, or functional particles, such as one or more of the superabsorbent polymer content One layer. The single 70 operation includes the use of the majority of forming feeders, for example, up to 4, 5, 6, or 7 forming feeders can be used to provide additional layers to the web. One or more of these networks may contain regions of higher basis weight, density, or functional particles, such as one or more of the superabsorbent polymer content. According to the method of the present invention, these areas can be blocked by a cover to prevent physical absorption of the material, thereby preventing the absorption material from being placed in a specific area, thereby obtaining an absorption product having a laminar variable. On the other hand, the regions can be obtained by vacuum segmentation, and after the layers are deposited from the forming riser, the vacuum properties are controlled. Vacuum segmentation can be used to control the width of the layer. For example, the vacuum segmentation can be achieved by the use of a forming wire. Several manufacturers make air-laying molding machines, including Denmark's M & j Fiber Technology (Fibretech). The forming risers include a rotating drum, an agitator, usually in an oval 幵 y track, 4 畺, which is used to maintain the separation of the fibers until the fibers are pulled to a small hole by a vacuum. Concentrated drums or forming holes or forming nets with small holes. For example, in a machine manufactured by m & j Fiber Technology, the forming riser includes a rotary agitator on a screen. Other fibers, such as a synthetic thermoplastic fiber, the paper size applies CNS A4 specification ⑵G X 297

I -------- ^ --------- (Please read the precautions on the back before filling out this page) 35 567061 A7 B7 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs (33) The forming feeder may also be caused by a fiber metering system, which includes a fiber opener, a metering element, and an air flow conveyor. The air-laid web is transferred from the forming web to a calender or other densification site to densify the web, increase its strength, and control the thickness of the web. In addition, on the other hand, the fibers of the web may be joined by applying an adhesive or a foaming addition system, followed by drying or curing. As a result, a heat seal is formed between the thermoplastic material and the fibers of the various layers. The formed web is then calendered for future use. Fig. 8 illustrates a method of making a web of fibers according to the present invention. Alternatively, the carrier tissue 20 can be released by the supplied roll 21. The thin fabric 20 is rolled onto the forming wire 18. The thin fabric, on the other hand, can be used as a carrier or as the underlying layer of the absorbent structure. The present invention carefully considers that a forming ft port 24 of the air-laid web forming machine distributes the required fibers to form the underlying layer 23 of the absorbent structure. These layers may further include fibers such as cellulose fibers, thermoplastic fibers, and functional particles. The present invention carefully considers that one or more forming feeders 24 of the air-laid web forming machine distribute the fibers required for the various layers of the absorbent central body or structure. For example, a first shaped riser may be used for a first fibrous ply, such as a ply containing cellulose fibers, bicomponent fibers, and optionally a carrier tissue. This first layer may be a layer of wick material. The remotely (or additionally) functional particles can be applied to these underlying layers using a particle applicator 28 '. Therefore, the paper size of the superabsorbent polymer is applicable to the Chinese National Standard (CNS) A4 specification (210 X 297 mm). --- line ^^------ f Please read the notes on the back before filling in this page) 36

567061 V. Description of the invention (34 or the work-percent particles of the dagger can thus be coated on the layer 23 deposited by the appetite of the molding. In the mother layer, the deposition of fibers and particles is controlled, In order to produce one or more regions with a higher basis weight *, dense I or functional particle content, as shown in Fig. 9, the molding wire 40 has a shunt or a resistor 41, which is arranged in the The upper side of the forming wire is also under the exit of the forming W port. For example, the shunt "can be attached to a sliding stand or other equipment located above the 4 forming wire. By The fibers or particles deposited on the forming riser are blocked by the forming wire. As a result, the layer contains one or more regions having a higher basis weight, density, or functional particle content. These regions can be determined by The control of the position or size of these shunts can be changed by changing the type and amount of fibers and work-moon & sexual particles in each layer. Figure 10 illustrates along Figure 9 Figure A — Direction B, above the forming wire 30 The shunts 3 丨. In a preferred embodiment, the shunts are tapered so that the fibers or particles do not accumulate on the top of the shunt. Figure 10 also illustrates the vacuum resistor 42, It may be located under the forming wire to block the vacuum. Returning to Figure 8, the layers may optionally be compacted or densified in a caliper formed by a pair of calender rolls 26. The fibers can be compressed to a desired thickness and density. In this manufacturing method, if the particles are fine, the underlying layer 23 is compressed here, and close to the mesh. Holes while avoiding leakage to the formed metal wire. Then by using the forming feeders 30 and 31, or optionally using the particle applicators 33 and 34,-\! _ 丨 # is installed -------- Order --------- Line · (Please read the notes on the back before filling out this page) Printed by the Employees' Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 37 567061 A7 B7 V. Invention Description The calipers formed by the calender rolls 35 and 36, in the same manner as the first layer, are formed with additional layers Objects 27 and 28 can be formed on top of the underlying layer 23. The air-laid web is transferred from the forming wire 18 and is compacted or densified, or increased, using a calender 37, for example The strength also controls the thickness of the mesh. The preferred densification range is from about 0.035 to about 0.50 g / cc, more preferably about 0.050 to about 0.05 g / cc, and more preferably about 0.20 g / cc. The web is then subjected to further processing, including pressure, heating, and / or coating of the adhesive. For example, an adhesive (such as a spray or foam adhesive) can be placed with it Coating is carried out at the adhesive applicator after the calender 37. A series of ovens can be used in the method of the invention for drying, curing or thermal bonding. The air-laying structure 23 is heated in the oven 50 to a temperature of 125 to 180 ct. All adhesives are then further applied to the structure. This adhesive can be applied by spraying, foaming or spraying, and these adhesives can be applied to reduce dust on the surface of the structure. The air-laid structure can be heated in an additional oven to a temperature range of 125 to 180 ° C. The air-laid structure can be processed at a pressure range of "money, preferably 1.5 psi." The completed web is then rolled up into a roll of 50 for future use. The continuous web of the web can be In a cutting element, which is not shown in the drawings, it is torn or cut to form individual absorbent articles. Alternatively, the finished mesh can be torn at the heat seal or a cap suitable for this paper size National Standard (CNS) A4 Specification (2〗 GX 297 Public Love)

(Please read the precautions on the back before filling out this page) 'Installation -------- Order --------- Line 1% 07〇61 A7 " --------- ----- V. Description of the invention (36) Perforate to produce a narrow strip of central body material with a heat seal on both sides 4 The heat fork seal to be cut must have sufficient width so that after cutting Two effective seals can be provided. In the case of the dagger of Baji, other various kinds of fibers containing other types and weights can be coated on or under the upper and lower layers of the absorbent structure of the present invention. For example, the absorbent article may also contain a fluid-permeable point-end sheet and a fluid-impermeable backing material. Absorptive objects such as diapers, feminine sanitary napkins, and adult incontinence products can be formed by the heart and body of this test. Test method 1 · The age of the body is taken. The time of the acquisition is used to measure a certain volume of saline solution, which is required to be absorbed by an absorbent material (value until any free liquid disappears from the surface of the absorbent body). time. The following methods can be used to measure this acquisition time: 1. Prior to testing, place the samples at 2rc and 50 // relative humidity for 2 hours in the laboratory. 2. Prepare a standard common salt solution (0.99% by weight of sodium chloride in deionized water) 'and add a dye if necessary. 3. Decide the leak volume and load pressure to be used. Medium-absorbency samples (most medium-sized diapers (size # 3)) used 3 X75 liters (ml) of leakage and a load pressure of 2.7 kilobars (kPa). 4. If the sample is formed in a laboratory or test machine (air-laying), the sample made on the laboratory pad forming machine is cut into 10 cm. The paper size is applicable to China National Standard (CNS) A4 Specifications (21〇χ 297 mm) (Please read the precautions on the back before filling out this page) # 装 -------- Order --------- Staff of Intellectual Property Bureau, Ministry of Economic Affairs Printed by the Consumer Cooperatives 39 567061 V. Description of the invention (37) The sample formed on the test machine is cut into 10 cm > < tube elastic bands, commercial diapers, and only elastic leg thickness is cut. Official diapers can be laid flat. Measure the weight of each sample on the 5th day, put on the plastic back panel, Exxon (Exxon difficult-to-sell polyethylene film spunbond, add materials with coating materials, 15 grams per square meter (g—〇i 2 sticky water ㈣In order to prepare a gas sample, make sure that the edge of the plastic backing material is folded over the top of the sample to avoid leakage during the test. &Amp; Place the sample on the bottom plate and place the sample in the picking device. Position the foam block at the top of the sample, put the leaking liquid ring into the foam, and then place the heavy top plate on top of the foam block. 7 · Set the timer for 20 minutes and place 8. Next to the testing instrument. — Holding a stopwatch in one hand, the other hand marks the graduated cylinder containing the volume of the leaking liquid to prepare the leaking liquid sample. Pour the fluid into the leaking liquid ring. After the fluid reaches the sample, Press the stopwatch at the same time. Empty the graduated cylinder as soon as possible. Stop the stopwatch when the fluid is absorbed by the sample. 9. Record the time required for the sample to absorb the fluid. Start the 20-minute timer as soon as the fluid is absorbed by the sample. 10.20 After 7 minutes, repeat steps 7-9. After another 20 minutes, repeat steps 7-9. Note ... If there is no other test after this retrieval test, 20 minutes after the third test can be omitted. However, it will be performed after the retrieval test. This paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm). Printed by the employee's consumer cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. Printed by the employee's consumer cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. Printed A7 B7. 5. Description of the invention (38) When performing other tests (rebound and warranty, and then start other test cloths), the following 20 minutes must be used so that the following equation can be used_ material extraction rate: extraction rate (liter / second, ms / s) = Leakage volume ㈣ 2. Moisture retention: The moisturization and retention test is designed to be performed immediately after the pick-up test ° t = before "observe the procedure of this test. If the shellfish is taken, 'the acquisition time does not need to be recorded, but 3 leaks ... must be observed at intervals of 20 minutes. It is very important that you must wait for ㈣ minutes when opening: enter = test. The sample / solution caused by the same results as the flow test. K It is assumed that the sample has passed the acquisition test and has not been disturbed in the last 20 minutes interval. Set the timer for 5 minutes and place it next to the test instrument. 2. Cut the sample into 1 of the same size as the sample. Horse-chestnut s_22 blotting paper weighs. 3 · Remove the weight of the sample, foam block and leaking ring. 4 · Push the paper on the sample. 5 · Replace the foam block and weight above the sample. 6. At the end of 5 minutes, remove the weight and weigh the stack of paper. The difference in weight between the wet and dry paper has been recorded. The moisture regain can be calculated according to the following formula: moisture regain (grams) = damp paper Weight (g)-weight of dry paper (g) The paper size applies to China National Standard (CNS) A4 (21G x 297 public love) 41

ίΊ 丨 • τ— * install -------- order --------- line < (Please read the precautions on the back before filling this page) -J— I — · A7

567061 V. Description of the invention (39) The following formula is used to calculate the regain retention after the third leak: Retention retention (%) == straight volume (ml)-(resurgence (g) X 1 Ml / g) X 100 Volume of all leaks (ml) 3 · Physically inefficient retrieval and storage efficiency The fluid retrieval and storage efficiency as understood here, fluid retrieval and storage efficiency is an absorption structure combined with its The fluid extraction performance and the properties of its fluid storage function, the latter is determined by the content of superabsorbent particles. Fluid extraction and storage efficiency can be defined here by the following formula: Fluid extraction and storage efficiency = (third extraction rate, ml / s) x (percent of superabsorbent polymer), of which the third The second acquisition rate is based on the method described in the section "Fluid acquisition time and rate," and the third acquisition rate of the leaked liquid is measured, and the percentage of superabsorbent polymer refers to the rate of superabsorption in an absorbent structure. Absorbs polymer particles or captures the weight percentage of the component content in one of the absorbent structures. The fluid capture efficiency is a unitless value, although it is expressed as milliliters per second and the capture rate is expressed as a weight percentage According to this definition, according to this definition, a structure with a high fluid acquisition rate but not containing superabsorbent polymer particles has a fluid capture and storage rate equal to zero. The fluid capture of the structure of the present invention The retrieval and storage efficiency is higher than 80, preferably lower than 120, and more preferably higher than 16. 4. Absorptive capacity This method is used to test diapers and adult incontinence structures, which are generally Composition of superabsorbent polymer containing superabsorbent polymer (superabsorbent polymer) The size of this paper applies to China National Standard (CNS) A4 (210 X 297 mm) (Please read the precautions on the back before filling this page) _Installation -------- Order --------- line '-Up- Printed by the Intellectual Property Bureau of the Ministry of Economic Affairs's Consumer Cooperatives 42 567061 A7 V. Invention Description (40 Intellectual Property Bureau of the Ministry of Economic Affairs Printed by an employee consumer cooperative. All samples should be placed in 70 ° F and 50% relative humidity conditions prior to testing. This test is used to evaluate the absorption and absorption of an absorbent structure after it has been immersed in a temporary saline bath. The ability to maintain fluids. It is performed under load to simulate the actual use of the product. From a performance standpoint, it is important that a structure can absorb as much fluid as possible. More importantly, The structure should be able to hold the fluid. Otherwise, the user will feel wet and the product may leak. The units of absorption and retention are expressed in grams per gram. The following steps can be used to measure Measurement Receiving capacity: A. Samples of finished products used for commercialization: 1. Remove the cuffs, waist elastic bands, etc. before cutting. 2.1. Measure the length of the central body to be evaluated.% In female fruit Body length is $ 35.6 cm. For example, all neonates use the 10 cm > < 35 6 cm test device. 4. If the central body length > 35 6 cm, use the ❻❻cm x 40.6 cm. Test equipment. 5. Most of the time 'the central body cannot be cut to accurately measure the length of 35.6 cm or the last 6 cm. When this is the case, the smaller length needs to be made up' to ensure the required The load can be applied to the body of the center cloth. Therefore 'cut another section of the body so that the total length of the sample is 35 cm or 40.6 cm. (This piece must be 10 cm wide and taken to the front section of the central body.) The diaper of the material section must be rolled up to prevent any π leakage fluid from being absorbed into the body due to hair system. -Some adult incontinence products are greater than 6

(Please read the precautions on the back before filling this page) _install -------- order --------- line! Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 567061 A7 I ------ B7 V. Description of Invention (41) 40 · 6 cm. If this is the case, do not cut the product. Instead, fold it into a sample of 10 cm x 40.6 cm. 6. Determine the weight and thickness of the sample. (Recorded as "dry weight,") Before the sample is weighed, remove the f material and the covering material. It is difficult to remove the covering material without tearing it. However, it is important to remove the covering material as much as possible. It is set to weigh 8 grams to replace the true weight f of the covering material, and this amount is subtracted from the weight of the sample. B. Used for making pads into money and equipment (trial or factory) Samples: 1. Use-cut cardboard, cut the sample to the required size: 10 cm x 35.6 cm for the sample made by this guard molding machine, 1G cm x 40.6 cm for the test plant or Factory-made samples. 2. Determine the weight and thickness of the sample. (Record as "dry weight,".) For all samples: 1. Prior to testing, place the samples at 70 and 50% in the laboratory. 2 hours at relative humidity. Already tested samples do not require additional adjustment time 'a for they have been tested in an air-conditioned laboratory. 2. Prepare 0.9% saline solution for better visibility' if Food grade dyes can be added if needed 3. The load that will be used to evaluate (via the code). The load is based on the final product. For example, small diapers_Q.7kpa (low capacity); medium diapers-2.7kPa (medium capacity); Adult incontinence, high-capacity product_27 coffee 6.8 kPa (large capacity). 4. Place the sample on the screen of the absorption rate tester (Figure μ), and place the foam on the sample. The top of the 'next method

· # Binding --------- Line Win Please read the notes on the back before filling in this page)

567061 A7 V. Description of invention (42) code. For a commercial center body, the cover plate should be in contact with the screen 'and the backing material should face up. The same applies to the pad forming machine and the machine-made absorption center: the side of the sample that will be closest to the user should face the screen, and the bottom of the center should face up. 5. Set the timer to 20 minutes. 6. Open the valve to allow fluid (09% by weight of sodium chloride to dissolve in deionized water) to flow out of the riser of the zero-flow aspirator bottle. This will help keep the fluid level constant.

7. The timer is started while the sample is immersed in the saline solution container. X8. At least 2 minutes before the 20 minute period expires, close the valve of the water flow aspirator and open the pump of the air ejector water flow aspirator to create a vacuum to pass fluid through the screen substrate. In addition, turn on the faucet to provide maximum vacuum. All unwanted liquids are eliminated; however, there should be no fluid on the screen of instrument B (Figure 3B). 9. When the appropriate time has passed, turn off the water tap. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 1．Remove the basket containing the sample and the code from the container, and place it on a flat plastic board covered with absorbent paper. 11. Discharge for 5 minutes. 12. Remove the weight, foam and weigh the wet sample. This weight is recorded as the "wet weight after discharge". B · Place absorbent paper on a flat surface. The sample was placed on top of the absorbent paper. Add the foam and code. Ϊ 4. Allow the sample to stand for 5 minutes. This paper size applies to China National Standard (CNS) A4 specifications ⑵ G χ 297 public love) 45 567061 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs Α7 Β7 V. Description of the invention (43) 15. Only weigh the sample. Record this weight as "wet weight after water absorption," the following formula is used to calculate the absorption capacity: Absorptive capacity (g) = wet weight after water absorption (g) _ dry weight (g) is used to measure absorption The instrument for the rate and retention is illustrated in Figure UA and Figure. The absorption rate tester is composed of two parts. Part A (Figure UA) is a container containing a saline solution. A discharge nozzle is located at the bottom of the container It should be about 2.5 cm long and about 丨 cm in diameter. A support cylinder with i cm system is used to support the discharge nozzle. Part B (Figure 11B) has a fine screen (for example, 200). Mesh screen base). The screen is designed to support a weight up to η · 35 kg. The sample and code are placed on top of the screen. Part B is placed inside part a of 0 at 5 During the test, the foam is used to be placed between the absorption center and the code. The foam is covered with a plastic film (thickness of at least 4 mm) and is sealed by any appropriate method (heat-sealed, Sealing tape, etc.) seal so that around the foam Produces a waterproof barrier layer. 5. Integrity As used herein, "integrity," is a measurement of the tensile strength of a fiber sheet, based on unit basis weight, and expressed as (millinewton, mN), It is the force required to break a 2.5 cm wide sheet per basis weight (1 gSm) in the X-direction. In order to measure the wet integrity (wet tensile strength) of an absorbent centrosome or a commercial absorbent product, the following steps can be used: 1_ Prepare a 2.5 cm x 10 cm sample. This paper size applies to China National Standard (CNS) A4 size ⑵G x 297 public love) 46:------------------ *-(Please read the precautions on the back before filling (This page) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 567061 A7 _____ B7 V. Description of the invention (44) 2 · Remove any plastic backing material, covering material or synthetic capture material that can be removed, leaving only Down the centrosome. 3 · Weigh the sample. Using a dropper or water spray bottle, apply 0.9% common saline solution equal to twice the weight of the sample to the center of the sample (for example, the sample weighs 1.00 g, coated with 2.00 g common salt solution, and the total weight is 3_00 g. 4 borrow Put the sample into a pressurized fixture and insert the sample into a tensile testing machine (for example, the default software setting of the Thwing-Albert LT-150 universal material testing machine is used for testing). 5 · Start the test. 6 _ When the test is completed, record the displayed results. These results include peak strength, peak elongation, maximum elongation, peak energy, and maximum energy. The wet integrity used here is defined as used Peak force measured in the above steps. The wet integrity of the absorbent structure of the present invention is higher than 4.0 mN / gsm 'and preferably higher than 6.0 rnN / gsm. 6. Softness The softness of the absorbent structure The overall fit of the structure is an important factor. As used herein, "softness, is the reciprocal of the energy required to compress a plate. In this case, the plate is the absorbent structure. Big energy compresses a plate It is less flexible. In order to measure the softness of the central body, you can use the following steps (a modified compression test): 1. Prepare the sample, cut 3 pieces of 10 cm x 20 cm (if the sample is a diaper , Cut from the area after the diaper is called, if the thickness is not uniform). For samples with obvious mechanical direction and across the mechanical direction, the Chinese national standard (CNS) A4 specification applies to the paper size of the machine ⑵ ~ ---- * _. ^ 7 丨 # 装 -------- Order --------- line · f Η (Please read the notes on the back before filling this page) 47 567061 A7 B7 Heart V. Description of the invention (cut into 20 cm in the 45 direction " 2. The backing material and covering material of the quasi-final plastic are left on the sample (applicable to industrial diaper samples). If the original projectile body sample is tested 2. Cover the bottom of the sample with a plastic backing material, EMB-685 polyethylene film: At the same time, apply 5 grams per square meter (15㈣⑽㈣ spunbond polypropylene) on the top of the sample (the same size as the sample 'with a small amount of spray Fog Adhesive Adhesion) 〇3 · Simplified modified compression test (for example Shi Wen _ Albert LT_150 Universal Materials Testing Machine) Use the following non-default settings to perform the compression fracture test method =% drop / displacement, fracture value =% drop = 50, distance between = 0.8 cm / U cm / U cm, unit: distance / displacement = cm; Lectra; test speed 帛 = 2.5 cm / min. All other settings are kept at their default values. Μ 4. Use a custom fixture as shown in Figure 13 to insert the sample into the tension test The chuck can use a 1.6 cm thick aluminum process, and it is 厶 5 cm wide x 20 cm long. The U-shape is a simulated diaper wrapped on a baby: two. The chuck's function is twofold. First, it performs a full-width test of the solution. It: owes, it maintains the u-shape during the softness test, and the baby needs the force needed to compress the diaper between his legs, thereby fitting his body to the diaper. The sample is inserted on its edge, whereby it will be compressed in the ^ direction (10 cm direction), and there are 2.5 cm on both sides of the specially made turn, thus leaving a gap of 5 cm. 5 · Start the test. 6 · When the deflection exceeds 1.8 cm, the pressure chuck pressed on the top of the paper size of this paper applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm) · V 7ΙΦ installed -------- Order --------- line · mr (please read the precautions on the back before filling this page) Printed Motif of Employee Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs-Fang Yuan 48 ^ 〇7〇61

Description of the invention (46 Print of the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs, Mo Xuan rupture of the cymbal, and stop the test at the same time (will not affect the test results). Records show the results. These results include peak force, peak deflection, maximum Skewness, peak energy, and energy at the maximum deviation, and force at the gate distance. The value used to calculate the softness is the energy at the maximum deviation, which is not expressed as joules. At the maximum deviation The energy of Ed, ^ can be calculated according to the following equation: The energy of Edmax 最大 at the maximum deflection in eight, ρ is the power of a given deflection, d, and dmin and dmax are at the beginning of the test and the test, respectively. The skewness at the end. Here, softness, S, can be defined according to the following equation: s = i / (energy at maximum deflection) The result, S, where the unit is one per joule , 1 / J. Generally, the softness of the total absorbent structure of the present invention should be higher than 80 / J ', preferably 15.0 / J. For the overall adhesion to the board, the absorbent structure is flexible. Sex is also an important factor. As explained here The "flexibility" is the reciprocal of the force required to bend the board. In this case, the board is the absorbent structure of the present invention. The greater the force required to bend the board, the more flexible the board is. The less flexible it is, you can use a Gurley test machine (model 4171, this paper size applies to China National Standard (CNS) A4 specification (210 x 297 mm) 49 --- * --- ^- --7 丨 ^^ install -------- order --------- line ^ | ^ --- 5 ·· W (Please read the precautions on the back before filling in this page)… / U61 Five A7 B7, invention description (47 Gurley Precision Instrument, Trey, New York), and measured according to the following steps. A sample Gurley rigid testing machine is shown in Figure 12. 1. The test piece is as accurate as possible Cut into 2 · 5 cm x 8 · 3 cm. If there is a clear machine direction and cross the machine direction, cut a test piece in each direction and test one by one. 2 In the original loss provided by the Guray test machine, A specific chuck as shown, and tighten the smaller upper screwdriver (see Figure 13 for instructions on higher base weight, louder plates). Custom chuck It is designed so that he cannot change the thickness of the test material, so that the material is inserted in the chuck. If the thickness is changed due to the chuck, the structure's properties will change from time to time, and the Gurley test The results obtained by the machine will be affected. In this method, the collet in Fig. 13 is used to eliminate this unwanted effect. 3. The purpose of this custom collet is to 'allow the use of existing Gurev The test is carried out on a sample that is too thick to be tested without curling. Wei Cungu f "allows a maximum thickness of 63 cm for testing. The structure of the test using this customized chuck, for example Commercialized and prototyped diapers and diaper central bodies, and commercialized and prototyped adult incontinence structures. The custom chuck allows the sample to be tested without any Z-direction shrinkage that may occur when using an existing central head. Therefore, this can exclude densification during the test, which may have a significant opposite effect on the test results. 4. Open the custom chuck adjustable plate by loosening the longer, lower screws. By sliding the sample up until it just touches the original paper rule, money_CNS A4 size 297

_ " I \ ιίί.Install -------- Order --------- Line # 丨! (Please read the notes on the back before filling this page) 50 567061 A7 B7 V. Description of the invention (48 Ministry of Economic Affairs and Intellectual Property Office)

I cool the head 'and place the sample in the chuck. The sample placed in the custom chuck should be 5 cm. /. Adjust the return of the custom chuck by relaxing the height adjustment screw on the original chuck. Adjust the height so that the distance between the sample leaving the bezel and the location where the sample will contact the joystick is 25 cm. Verification 6. Make sure that the remaining 0.6 cm sample extends below the top of the joystick. Make sure the joystick does not move. Press the motor button to move the sample toward the lever. Press the motor button continuously until the sample passes the control lever. = Line While doing this step, observe and record the height value on the scale. Repeat this step in the opposite direction. 7. Average the two values obtained. In the conversion chart of the instrument, find the conversion factor for a sample of -2.5 cm wide and Sichuan cm long according to the weight used and the distance from the center of the joystick where the weight is placed. Using a 4 β chuck, the 2.5 cm χ 3 · 8 & sample tested was equivalent to a test sample of 2.5 cm χ 38 cm without using the specific chuck. Without the customized chuck, the sample in the original Yantou head was 0.6 cm 'and extended below the top end of the joystick by 0.2 cm, with a clearance of 2.5 cm during the same period. Using the custom chuck, the sample chuck uses 0.6 cm in the chuck, and the other 4.4 cm in the custom chuck is fixed to the thicker sample. Similarly, it extends 0.6 cm below the top end of the joystick with a gap of 2.5 cm. 8. Multiply the average reading on the scale by the conversion factor obtained in the chart. K fruit is rigid, which is expressed in milligrams of power, huh. Removability Packing Time Paper Rule Money iV (CNS) A4 (210 χ 297 ^

I 567061 A7

Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs, P, is defined according to the following formula: P = 10.06 / 9.81 * Rigidity Here, the result ρ is expressed as Newton fractions, ι / ν In the above, the flexibility of the overall absorption structure of the present invention is higher than 6 °, and preferably higher than 80 / N. In the present invention, 'the use of one or a combination of the following characteristics in the preparation of an absorbent structure is highly likely to achieve a high degree of softness, flexibility, and wet integrity: By applying a softer adhesive system 'for example, such as thin or wrinkled adhesive fibers, elastic latex adhesives or water-soluble bonding agents, by reducing the amount of adhesive, the use of the compaction period before ripening is relatively low And a relatively low pressure is used during the rolling of the sheet after it has matured. In general, the density of the sheet of the absorbent structure of the present invention after compaction and / or calendering should be less than 0.3 5 g / cm3 (§ uniform, and preferably less than 0. 3 ". 8. Thickness use Measure thickness with an analog thickness gauge (BC · Ames, Waltham, Mass.). The gauge has a bottom diameter of 4. 丨 cm and is equipped with a 150-gram code, so that it is applied to the sample. The pressure is 1 · 4 grams / square centimeter (g / cm2). The measured thickness is in inches, and it can be converted into centimeters if necessary for calculation. 9 · Combine the capture and regain test The equipment included includes the following tools: Electronic balance (precision ± 0.01 g) Fluid inhalation tester (FIT, designed by Buckeye "B 144-97") This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) 52

567061 V. Description of the invention (50) A7 B7 S22 grade blotting paper printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs, 1016 cm x 24 · 13 cm (4 inches x 9.5 inches) Weight '8408.5 grams, 10.16 cm X24.13 cm (4 inch x 9.5 inch) latex foam, 10.16 cm x 24.13 cm x 3.81 cm (4 inch x 9.5 inch x 1.5 inch) synthetic menstrual fluid top material, spunbond polypropylene, 22 gsm, 25.4 cm x 10.16 cm (10 in. X 4 in.) Latex foam can be obtained from Scou FabnCS, Memphis, Tennessee. The top layer material is available from Avgol nonwovens industry in Holon, Israel. The fluid intake tester (FIT) designed by Backer consists of a top plate and a bottom plate. The top plate is a polycarbonate plastic flat plate of 1 cm x 19.0 cm x 1 · 3 cm. The plate is cut with a hole in its center, and a hollow suction cylinder is installed in the hole. The suction cylinder The inner diameter of the tube is 2.5 cm, and the weight of the entire top plate is 872 grams. The bottom plate of the FIT is essentially a 297 cm x 19.0 cm x 3 cm polycarbonate g plastic single inclined plate. In this combination The synthetic menstrual fluid used in the extraction and re-wetting test contained the following components and the indicated amounts: deionized water 903.3 grams of sodium chloride 9.0 grams of polyethylene aziridone 122.0 grams

Biebrich red 4.0 g total solution volume 1 liter

Biebrich scarlet (red dye) can be obtained from the sigma of St. Louis, Missouri. The paper size is in accordance with Chinese National Standard (CNS) A4 (210 X 297 mm).

-^ 7— # 装 -------- Order --------- line · (Please read the precautions on the back before filling in this page) J. 567061 Employees of the Intellectual Property Bureau of the Ministry of Economic Affairs Printed by the cooperative A7 B7 V. Description of invention (51) Acquired by chemical company. Polyvinylazapentanone (pvp, weight average molecular weight approximately 55,000) is available from Aldrich, Milwaukee, Wisconsin. Sodium chloride (reagent grade) is available from New Jersey Phillipsburg, J.T. Baker. These dry ingredients are mixed in water for at least two hours to ensure complete dissolution. The solution temperature was adjusted to exactly 22 ° C. 26 ml of the solution was pipetted into the UL adapter empty compartment of a Brookfield Model DV-II + viscometer (Brookfield Engineering Laboratories, Stoughton, Massachusetts). The UL mandrel was placed in the space, and the viscometer rate was set to 30 revolutions per minute (rpm). The target viscosity is between 9 and 10 centipoise. This viscosity can be adjusted with additional water or PVP. The sample was cut into 7 cm x 20 cm, and the larger size was in the machine direction. Measure and record the sample weight and thickness. Use a marker to mark "X," on the center of the top of the sample. The sample is placed in the center of the bottom plate of the FIT. The top plate is in the center of the sample and the πτ top plate is lower than the top plate. The top The flat plate is placed in the center of the sample so that the suction cylinder is facing the "χ" mark on the sample. 10 ml of synthetic menstrual fluid leakage is poured into the suction cylinder, and the sample operation is measured and recorded. The time required to fetch the fluid. The time, expressed in seconds, is the time to sample the sample. At the same time that the sample time ends, the waiting period of the clock starts. At the end of the waiting period, by removing the top end ΗΤ plate, and then pre-weighed the stack of eight S22 absorbent paper on the sample: Saki on the 'to measure the moisture regain. The foam was placed on the paper, the same day was placed with a weight on the foam's Top (the foam and the paper are in the sample 丨 the paper ruler-China iiiy ^) A4 size ⑽ ---- W --- ^ --- ^-installation -------- order-- ------- line tk (please read the notes on the back before filling this page) 54 567061 Ministry of Economic Affairs Printed by the Consumer Property Cooperative of the Intellectual Property Bureau A7 B7 V. A description of a pressure of 3.4 kPa on (52) for two minutes. The resurgence, expressed in grams (g), is the final weight of the stack of paper to remove the stack of paper The initial weight is calculated. The combination test is usually performed three times and the average value of the results obtained is taken. The structure of the present invention in which the density superabsorbent polymer has a directional quantity change curve in the basis weight can be used for absorption and Any disposable absorbent article that retains body fluids, and it is usually placed or held near the body of the wearer. Disposable articles include baby diapers, adult incontinence products, training pants, sanitary napkins, and other feminine health care products. Here, the present invention is illustrated by carrying out a series of experiments on the absorption structure of production and testing units. Example 1 (Sample A, Samples A to C are three-layered unit absorption central bodies, which have Manufactured on an air-laid test line with two forming I-ports. For this set of samples, the second forming feeder of the test line was modified The strip-shaped layer of the present invention is formed. In samples eight to c, the first or bottom layer contains 70 gSm of ND-4 丨 6-grade pulp (Weyerhaeuser, Port Tacoma, Washington) , 7 gsm bicomponent binder fiber (AL-Adhesive-C grade, 1.7 dtexX4 mm (mm), Covington, Georgia 'FiberVisions) and carrier thin fabric (absorbent centro body cover, 18 gsm 'Cellu Thin Fabric Company, East Hartford, Connecticut). In samples A to C, the third or top extraction layer contains 35 gsm of short staple polyester (monofilament 15 Danny (dpf) x6mm, grade 376 XX2, Johnsonville, South Carolina, Wellman Company), it was --- :: --- 7----- --Order --------- line · t * (Please read the notes on the back before filling this page)

567061 A7 ----- One BZ___ V. Description of the Invention (53) Coated with a latex adhesive (6 gsm 'Α · χ 192, dry product polymer ‘Allen Township, Pennsylvania). (Please read the notes on the back before filling this page.) Sample A was used as a control for this group because it was not produced using the present invention. In sample eight, the intermediate storage layer contained 50 gSm of high-performance fiber pulp (Buckeye Technology, Memphis, Tennessee), M egg SXM 70 superabsorbent powder (eensboro, North Carolina, Shi Courthausen Corporation) and 7 • Adhesive grade two-component binder fiber (1.7 dtexX4 mm). The present invention is used to form a sample] or c or an intermediate storage layer. The purpose is to keep the second layer as the same as that found in sample A. The second layer is added by shrinking it into an absorbing material in the center of samples B and C. The basis weight. This can be accomplished by reducing the width of the second layer while incidentally fixing the total amount of absorbent material present in the layer. Decreasing the area above the absorbent material being dispensed can increase the basis weight. The standard product stamp used for these examples is 70 mm by 200 mm. While keeping the total weight of the layer constant, the width of the intermediate layer was reduced from 70 mm (full width, sample A) to 55 mm (sample B) and 40 mm (sample c). Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. For sample A (control), the basis weight index is 243 gsm and the fork index is 0.085 g / cc. The caliper index is 2.85 mm. Samples B and C It is evenly compressed to a caliper index of 2.85 mm. Fig. 14 schematically illustrates how to form samples a to c layer by layer. Figure 14 shows that the basis weight and density of the sample A should be constant over its entire width. However, 'Figure 14 also shows that compared with sample a, samples b and C are compatible with the Chinese National Standard (CNS) A4 specification (210 X 297 public reply) at 56 paper sizes compared with sample a. System 567061 A7 ___ _ B7 V. Description of the invention (54) There should be areas with higher basis weight and density at the center, and areas with lower basis weight and density at their edges. Figure 15 shows the variation curves of the y-direction basis weights measured for samples A to C. The far basis weight of Sample A was uniform. The basis weights of the edges of samples b and c are the same ' This shows that there is no contribution from the total basis weight of the second or intermediate storage layer. As shown in the schematic diagram in Fig. 14, the basis weight is that the unit absorbs the centrosome, and it increases with the order of sample A, sample B, and sample c. Samples A to C were compressed to the same occupancy on the airflow test line. Figure 16 shows the y-direction density of samples A to C as a function of the variation. Fig. 16 shows that at a certain thickness, the density in the center region increases, and at the same time, the basis weight also increases in the center. Fig. 16 shows that at a certain thickness, the density decreases in the edge region, and the basis weight decreases in the edge region. Example 2 (Sample DIG) Samples D to G show how the present invention can be used to improve the function of a product using conventional techniques. Samples D to E were three-layer unit-absorbent centrosomes, which were manufactured on an air-laid test production line with three forming risers. In these examples, the first or bottom wick material layer comprises 10 · 8 gsm of ND-416 grade pulp (Tacoma, Washington, Weyerhaeuser, Inc.), and 8.9 gsm bicomponent binder fiber (AL -Adhesive-C '1.7 dtex X 4 mm, FiberVisions, Georgia) and carrier sheet (absorbent centrosome cover, 18 gsm, East Hartford, Connecticut, Sheru Thin Fabric Company). This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) 57 -1 — One ---! !! 7 " 丨 Installation ------- Order · ------ — ^ 11J --- »* -W (Please read the notes on the back before filling this page) Description of the invention (55) ^ or middle The storage layer contains 50 gsm of high-performance fiber-grade pulp (from Tech Field, Memphis, N.S.), 50 such as Guava Favor SXM 70 superabsorbent powder (Greensboro, North Carolina) , Scotthouse Company) and two 7㈣AL-adhesive .C grade two-component binder fibers (ι · 7 d㈣χ4 male magic. 4 the first or top extraction layer contains 35 8 coffee polyacetate short fibers (monofilament 15 Dagger X 6mm 376X2 grade, Jensen, South Carolina (1 a 1 a a 1) coated with a latex adhesive (6 gSm, Airfiex 192, dry product polymer, Allen, PA) For sample D, the first forming feeder of the test line was modified to form the strip-like layer of the present invention. The standard product imprint is 70 λ J multiplied by 200 μm. For sample D, The first layer was formed into two bars having a gap of 25 4 between the bars. The sample was formed by a conventional method as It should be noted that the basis weight and density in the loading of sample D is lower than the basis weight and density of sample E. The sample is compressed to a thickness of 2.97 mm. Figures 17A and 17B schematically show how to Layer formation samples 0 to £. The longitudinal axis of the product in Figures 17A and 17B is perpendicular to the coating plane. Figures 17A and 17B do not show that after it has been uniformly compressed to the target thickness, The end-view variable curve of the finished product. Table 1 shows the acquisition and regain data of samples D and E. Compared to the control sample E, the acquisition of sample D is faster and the regain is slower. The acquisition time has a strong relationship with the density of the absorption central body. The reason for the shorter acquisition time of sample D is the lower density of the central part. 567061 A7 Γ-" ------ Five, Description of the invention (56) Table 1. Sample D and E acquisition and resurgence data Sample variable acquisition time (seconds) — resurgence (g) D variable 9.9 ~~ 1.32 controlled 16.8 1.73

(Please read the notes on the back before filling out this page.) Samples F and G are two-layer unit absorption center bodies manufactured using an experimental pad molding machine designed by Buckeye (Bake Technology, Memphis, TN). For these samples, the forming screen made by this experimental pad forming machine was modified to form the strip-like layer of the present invention. The center bodies were formed face down in the experimental pad forming machine (the point end layer of the center body was first formed, and the bottom layer of the center bodies was formed second of). Sample G was used as a control for this pair of samples. The one-point layer is formed on the top flat material which also serves as a carrier (polypropylene spun-bonded with a durable hydrophilic adhesive, 22 gSm, AvgO1 Nonwovens Industry, Halon, Israel). This layer contains 92 gsm staple fiber pulp (Foley soft wool, Buckeye Technology, Memphis, TN) and 10 gsm bicomponent binder fiber (al_adhesive-C grade, 1.7 dtex X 4 mm, Coventry, Georgia FiberVisnos) The present invention was used to construct the top layer of sample F. The purpose is to keep the weight of the top end layer the same as that found in Sample G, but to increase the base weight of the top end layer by wave-shrinking it into an absorbent material in the area in the center of Sample F. This can be achieved by reducing the width of the top layer while additionally fixing the total amount of absorbing material present in the layer. Decreasing the area above the allocated absorbent material can increase the basis weight * Installation -------- Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs

Tissue towels of this paper size_Home Standard (CNS) A4 Specification (210 X 297 Public Love

Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 567061 A7 I " ------- B7__ V. Outline of Invention (57)-Miles. The standard product imprints used in these examples are 70 mm by 200 △ Yada while keeping the total weight of the concrete layer constant, the width of the intermediate layer is 70 mm (full width, sample G ) Was reduced to 44 mm (sample F). In samples F and G, the bottom layer contains 59 staple fiber pulp (yucky Buckeye technology, Memphis, Tennessee), 7 AL · adhesive (grade two-component 1 mixture fiber (U dtexX4 mm) and 5 〇gsm SXM 70 superabsorbent powder (Schoenhausen, Greensboro, NC) and. For sample G (control), the basis weight index is 24.0 gsm and the density index is The caliper index of g / cc is 2 67 mm. Sample F is also uniformly compressed to a caliper index of 2.67 mm. Figure 16 is not intended to illustrate how to form samples eight to c layer by layer. Samples f and 〇 在The A-beam inspection pad forming machine is formed face down, but their variable curve cutters are shown in the upper right corner of Figures 18A and 18β. In the figure, the vertical axis of the product is perpendicular to the diagram Flat. Table 2 shows the acquisition and moisture regain data of samples 17 and (). The product dryness of sample F, measured by the moisture resurgence test, is better than the control (sample G). Absorbent material is concentrated. Capture in sample f compared to control (sample G) Slower. It is well known in the art that the acquisition time has a strong relationship with the density of the absorption center body. The reason for the longer acquisition time of sample F is the higher density of the central part. This paper size applies China National Standard (CNS) A4 specification (210 X 297 public love) 60 * I; 7 — · ^ equipment -------- order --------- line ^ 一 ^ --- w --- -Γ (Please read the precautions on the back before filling out this page) 567061 A7 B7 V. Business Instructions (58) Table 2 Sample F and G acquisition and resurgence data Sample variable acquisition time (seconds) Resurgence (杳) F. variable 51.28 --- ^ V 1 4.42 'G controlled 37.7 --__ 4.93 Example 3 (samples g to K) The following samples illustrate how to use the present invention to maintain performance, on the same day: reduce raw material costs The samples Η to K are three-layered unit absorption center bodies, which are manufactured on an air-laid test production line with two shaped risers. The first or bottom wick material layers of these fingers include A certain amount of nd 416, and paper tables (Tacoma, Washington, ~ 6]:] 121611361 > Company). Sample Η The first layer of J contains 60 # 111 pulp from grade 416 to 416, while samples I and K contain 80 grams of ND-416 grade pulp. See Table 3, the side sample. The first layer of α Contains 7 gsm bicomponent binder fiber (AL_Adhesive C, and 1.7 dtex X 4 mm, Covington, Georgia, FiberVisions, and carrier thin fabric (absorbent centrosome cover, 8 gsm, Connecticut little | East Hartford, Sheru Thin Fabric Company). -y 7 — · Equipment -------- Order --------- Line 1 觚 1 2 Read the precautions on the back before filling out this page} j · Staff of Intellectual Property Bureau, Ministry of Economic Affairs Consumption cooperative print samples Bottom layer width (mm) Bottom layer base weight (gsm) ___ — 1 Moisture (g) _____ — —-Η 55 60 1.97 ____ --- I 55 80 1.63 ___ I-J 40 60 1.69 -------- Κ -------- 40 80 1.86 ----- The second or intermediate storage layer contains 50 gsrn high-performance fiber Lebanese paper National Standards for Financially Suitable Countries (CNS) A4 Specification (⑽297 issued) 61 567061

(Buckeye Technology, Memphis, Tennessee), 50Favssm Superabsorbent Powder (GKensbo, North Carolina, Scott Monson) and 7 gsm AL_Adhesive_c Grade two-component binder fiber (1.7 dtexX4 male director). 〇First or top ^ The extraction layer contains% polyester staple fiber (monofilament 15 denier (dpf) X6mm, 376 χχ2 grade, Ruthenium branch A ', Jensen, South Carolina), which is coated with a latex Agent (6 gsm, Airflex 192, dry product polymer, Allen, PA). For this group of samples, the first forming riser of the test line was modified to form a branched layer of the present invention. The standard product imprint is 70 mm by 1. For sample 1, the first layer was formed in a strip of 55 mm and approximately in the center of the longitudinal axis of the product. For samples J and K, the first layer was formed in a strip that was 40 mm wide and approximately in the center of the longitudinal axis of the product. Table 3 shows the basis weights and widths of the samples Η to K. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs

Samples K to K were uniformly compressed to a target density of 0085 g / cc. The target basis weight of the central part of samples Η and J is 233 gSm. The target basis weight of the central part of this sample and J is 253 gSm. Figure 5A shows end cross-sectional views of samples η to κ. Figure 19 shows that the moisture regain data of the sample is a function of the basis weight and width of the bottom core material. Figure 19 shows that the resurgence is essentially uniform for the width of the layer. Assuming that the regaining effect shown here is acceptable, the narrower width of the sample is beneficial to the raw material.

This paper size applies to China National Standard (CNS) A4 (210 X 297)

I ^ ^ --------- (Please read the precautions on the back before filling this page) -J. 567061 A7 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 5. Description of Invention (6G) The percentage content of superabsorbent polymer in the body of the absorption center, the A + ^ and the yield, the regain retention, and the third _ take time were tested in the seven commercial diaper products (V seat α mouth 1-7). . The results are summarized in Table 4. Table 4 Total gross basis weight (gsm) of the product

Comparing the data in Table 4 and the data in Tables 5 and 6 shows that the absorption systems including the absorption structure of the y-direction variable curve have a relatively southern fluid handling compared to any of the commercial absorption articles tested And storage efficiency. Example 5 The absorption samples tested in Example 4 were used as the efficiency of a system without an y-direction variable curve (Example 4), and a structure with a y-direction variable curve (Example 5 and 6) The comparison of the effectiveness of the system. The following raw materials were used as the structural composition of the samples described in Examples 5 and 6: a) Foley Soft Wool (FF)-obtained from Memphis Baker Technology, Tennessee ---- "----- ^- --Install -------- order --------- line · --- CW / ί Jing first read the notes on the back before filling out this page} 567061 Employee Consumer Cooperatives, Bureau of Intellectual Property, Ministry of Economic Affairs Print A7 B7 V. Description of the invention (61) Bleached Southern Softwood Kraft (BSSK) fiber; b) ND416 compressible pulp obtained from Weyerhaeuser Company of Port Tacoma, Washington; c) as disclosed in US Patent No. 5,190,563 Chemically cross-linked fibers (CS) of southern softwood kraft pulp were treated with citric acid and sodium hypophosphite. The fiber has a WRV of about 40% and a crimp factor of about 0.5; d) was obtained from Wellman International Limited, County Meath, Mullah, Kells, Ireland, and was named Fillwell093. Polyethylene terephthalate (PET) fiber, Weiman PET376X2, each fiber has a thickness of 16.7 dtex, and a length of 6 mm; e) Superabsorbent polymer: • by Krefeld, Scotthausen, Germany GmbH & CoKG's FAVORTM SXM 3950; -FAVOR ™ SXM 9100 from Cleveland Scotthausen, Germany; and SAM MG-2600, obtained from Kolon Chemical Co., Ltd., Kyunggi-Do Kwacheon, South Korea;- SAM MG-3500 obtained by Kolon Chemical Co., Ltd., Kyunggi-Do Kwacheon, Korea; f) Reference number 3812002-000 obtained from France SAS, Jacob Holm Industries, 48 gsm LicontrolTM non-woven fabric Capture layer. g) AirflexTM 124 latex from Allen Township, Pennsylvania, dry product polymer; LP; this paper size applies Chinese National Standard (CNS) A4 specification (210 X 297 mm) 64 --------- ^ -------- Order --------- Line --- f--1 Dance ^ (Please read the notes on the back before filling this page) Printed by the cooperative A7 B7 V. Description of the invention (62) h) T255TM bi-component crimped binder fiber obtained from Kosa, Houston, Texas, with a thickness of 2.3 dtex per single fiber and a length of 6 mm; i) Fiber Visions bicomponent fiber with a thickness of 1.7 dtex per fiber and a length of 6 mm obtained from FiberVisions, Varde, Denmark. The absorbent samples used in Example 5 each contained an upper layer and a lower layer, and both layers had a rectangular shape. Each upper layer is 10 cm wide and 20 cm long, while each lower layer is 10 cm wide and 40.6 cm long. For testing the acquisition time and regain of each absorbent sample, the upper layer is placed on top of the lower layer so that the front ends of the two stacks are on the same line. For the absorbent samples "L" and "M", the following laminated substrate X612 was used. The sample "N" described in this example is composed of a higher basis weight (DX 119) and a bottom (0? 122) laminated. The basis weight was 330 gsm and was used for the underlying layer material in Example 6, X612, on a M & J commercialized air-laying machine with a 18 gsm carrier tissue, Cellutissue3024 , Formed by an absorbent. The absorbent is formed in four steps. The first uniform layer contains 37 gsm ND416 staple fibers, 92.3 gsm Favor SXM 3950 and 4.0 gsm T-255tm (2.3 dtex per single fiber) bicomponent staple fibers. A second uniform layer contains 37 gsm ND416 staple fiber, 92.3 gsm Favor SXM 3950 and 4.0 gsm T-255tm (2-3dtex per single fiber) staple fiber. A second uniform layer comprises 38.5 gsm ND416 staple fibers and 6.9 gsm T-255 (2.3 dtex per single fiber) staple fibers. In the process of drying and maturing, the paper size is in accordance with Chinese National Standard (CNS) A4 (210 X 297 mm) 65 —! .!装 丨 Install -------- Order --------- Line · — U (Please read the precautions on the back before filling this page) Printed by the Employees ’Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 567061 A7 B7 V. Description of the invention Before the stage (63), 49.1 gsm of water was sprayed on the top of the third layer. An upper layered material was used on a Danweb test line, and sample L was manufactured in the following manner: A non-woven fabric-retrieved layered pattern LicontrolTM 48 gsm was used as a forming plate. The absorbent material is formed on the spunbond side of the two-layer nonwoven fabric. The material is a homogeneous blend of 144 gsm FF fiber cracks, 150 gsm FavorTM SXM9100, and 6.0 gsm FiberVision (1.5 dpf). The total basis weight is 348 gsm. Sample M was made on a Danweb test line using an upper layered material. A non-woven layered version of LicontrolTM 48 gsm was used as a forming plate. The absorbent material is formed on the spunbond side of the two-layer nonwoven fabric. This material is uniformly mixed and contains 144 gsm CS fibers, 150 gsm FavorTM SXM9100, and 6.0 gsm FiberVision (1.7) dtexpf. The total basis weight is 348 gsm. Sample N consisting of the DX119 material as the upper layer and the DX122 material as the lower layer. The DX119 material was made in the following way: A cellulose-based tissue, Cellutissue 3024 18 gsm, was first coated and used as a transfer / carrier medium for this subsequent material. The next layer is made of 130 gsm Southern Softwood Pulp Fiber (Foley Soft Wool), 103.5 gsm Super Absorbent Kolon MG 2600 and 7.5 gsm with Polypropylene Center Body and Polyethylene Shell (Fiber Visions 1.7 dtexpf / cut 4 mm) A homogeneous blend of self-adhesive bicomponent fibers. The next layer is a uniform blend of 130 gsm Foley soft wool, 103.5 gsm Kolon MG 2600 and 1.7 dtexpf / cut to 4 mm 7.5 gsm bicomponent fiber. 1 paper size applies to Chinese National Standards (CNS ) A4 size (210 X 297 mm) -66-(Please read the notes on the back before filling this page) -----! Order --------- line. 567061 Intellectual Property Bureau, Ministry of Economic Affairs A7 B7 printed by Employee Consumer Cooperative Fifth, invention description (64). The last or top layer is 42 gsm polyethylene terephthalate fiber, Wellman tm PET 376 X 2, 16. · 7 dtexpf, 8 gsm adhesive with 10% ingredients, dry product AY 124 latex adhesive. Yuan mesh was densified to 0.07 g / cc before it was cooked. The total basis weight of the material is 547 gsm. The DX122 material was made in the following way: A cellulose-based thin fabric, Cellutissue 3024 18 gsm, was first coated and used as a transfer / carrier medium for this subsequent material. The next layer is made of 117 gsm highly softened fiber pulp (ND416), 85 gsm highly permeable superabsorbent (κ〇〇〇η MG 2600) and llgsm with polypropylene centrosome and polyethylene shell (Fiber Visions 1.7 dtexpf / cut into 4 mm) homogeneous blend of self-adhesive bicomponent fibers. The next layer is a homogeneous blend of 117 gsm ND416, 201 gsm Kolon MG 2600 and 1.7 dtexpf / cut into 4 mm 4 gsm bicomponent fibers. The last or top layer is a dry product AY 124 latex adhesive with a solids content of 14% plus 5 gsm adhesive. The mesh was densified to 0.15 g / cc before being cooked. The total basis weight of the material is 550 gsm. Table 5 · Properties of samples L to N Total average basis weight of the sample (gsm) Total superabsorbent polymer content (% by weight) Absorptive capacity (g) Moisture regain (g) Moisture retention (%) Third acquisition rate (mL / sec) Fluid retrieval and storage efficiency L 504 54.2 373 9.4 96.0 0.88 47.7 M 504 54.2 398 6.5-97.1 1.50 81.3 N 824 42.9 550 2.9 98.7 1.36 58.3 The data in Tables 4, 5, 7, and 10 clearly demonstrate the direction The paper size of the variable paper is applicable to the Chinese National Standard (CNS) A4 specification (210 X 297 mm) 67 — — —ίι ^ ί — ^ — — — — — — — — I — ^ 11111111 III (Please read the note on the back first Please fill in this page again) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 567061 A7 —---------— B7___ V. Description of the Invention (65) The absorption system with structure is less than that without the variable structure superior. Exemption Example 6 Each of the absorbent samples tested in Example 6 consisted of an upper layer and a lower layer, both of which had rectangular shapes. Each of the upper layers has a strict direction change as described in Table 5, and the width is 10 cm in width and 20 cm in length, but each of the lower layers is 10 cm in width and 40.6 cm in length. For the test of picking time and moisture regain of each sample, the upper stack is placed on the lower stack so that the front ends of the two stacks are on the same line. This lower layer material, named X612, is the same as that described in Example 5. An upper layered material was used on a Danweb test production line, and samples were produced in the following manner. A UcontronTMf woven fabric retrieval layer was used as a forming plate. The first layer is formed on the spunbond side of the two-layer nonwoven fabric formed on the absorbent material. The first layer formed was a high-density zone a with a length of 5.1 cm and was separated by a 5.1-cm strip toward the machine. The bars are made of 175 gsin ND416 fiber pulp, 281 gSm FavorTM SXM9100 and 14.0 gsm

FiberVision (1.7 dtexf) is composed of bicomponent short fibers. These materials are mixed uniformly. This second layer was filled in the B area. It consists of 62 gsmFF fiber water 66 gsm FavorTM SXM9100 and 4.0 gsm FiberVision (1.7 dtexf) bicomponent staple fiber. These materials are uniformly mixed and filled in the area between the high-density band A areas. The total basis weight is 348. The paper size is applicable to the Chinese National Standard (CNS) A4 specification (21〇X 297 meals). 68 I.1. ^ -------- ^ --------- ( Please read the precautions on the back before filling in this page) 567061 Printed by the Consumers ’Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 B7 V. Invention Description (66) 〇 Use a layered material on a Danweb test production line The sample P was produced in the following manner: The LicontrolTM nonwoven pick-up layer was used as a forming plate. The first layer is formed on the spunbond side of the two-layer nonwoven fabric formed on the absorbent material. The first layer formed is a high-density zone A 'of 5.1 cm' and is separated by a 5 · 1 cm strip toward the machine. The bars are composed of 175 gsm ND416 fiber pulp, 281 gsm FavorTM SXM9100, and 14.0 gsm FiberVision (1.7 dtexf) bicomponent short fibers. These materials are mixed uniformly. This second layer was filled in the B area. It consists of 62 gsm CS fiber pulp, 66 gsm FavorTM SXM9100 and 4.0 gsm FiberVision (1.7 dtexf) bicomponent staple fiber. These materials are uniformly mixed and filled in the area between the high-density band A areas. The total basis weight is 348 gsm. An upper layered material was used on a Danweb test line, and a sample Q was produced in the following manner: The LicontrolTM nonwoven pick-up layer was used as a forming plate. The first layer is formed on the spunbond side of the two-layer nonwoven fabric formed on the absorbent material. The first layer formed was a high-density zone A with a length of 5.1 cm, and was separated by a 5.1-cm strip toward the machine. The bars are composed of 175 gsm ND416 fiber pulp, 281 gsm FavorTM SXM9100, and 14.0 gsm FiberVision (1.7 dtexf) bicomponent short fibers. These materials are mixed uniformly. This second layer was filled in the B area. It is composed of 62 gsm Fillwell 093TM Weiman PET 376X2 16.7 dtexf 6 mm synthetic short fiber, 66 gsm FavorTM SXM9100 and 4.0 gsm FiberVision (1.7 dtexf). The two paper sizes are applicable to the Chinese National Standard (CNS) A4 specification (210 X 297 male). Li) 69 ----— ί: —.j—install -------- order --------- line — ---- * ^ * (Please read the notes on the back first Fill out this page again) 567061 A7 B7 V. Description of the invention (composed of 67-component short fibers. These materials are evenly mixed and filled in the area between the high-density zone A areas. The total basis weight is μ $ gSm. Table 6 AJi B zone sample with y variable structural basis weight (gsm) density (g / cm3) superabsorbent content (%) area width (cm) basis weight (gsm) density (g / cm3) superabsorbent content (%) area Width (cm) 0 551 0.305 60 2.5 τη — 0.203 50 5.1 P 562 0.214 60 2.5 Γ 282 0.136 50 5.1 Q 749 0.277 60 2.5 303 0.140 50 5.1 The area weight and density of each area are measured by Calculate total weight and volume. Table 7 (Please read the precautions on the back before filling this page)

} Packing -------- Order --------- Line I Total superabsorbent polymer content (% by weight) of samples printed by employees of the Intellectual Property Bureau of the Ministry of Economic Affairs, Consumer Cooperative, Absorptive capacity (g) Moisture ( g) Moisture retention (%) Third acquisition rate (mL / sec) Acquisition and storage efficiency of fluid L 54.2 390 4.29 98.1 1.94 105.1 Μ 54.2 408 1.35 99.4 3.73 202.2 N 42.9 437 2.49 98.9 3.41 184.8 Tables 4, 5 The analysis of the data in Figures 6, 6 and 7 reveals that the absorption structure with the ^ -direction variable is more commercialized and tested than the delta absorbent article, and the absorption sample without the "-direction-variable" has higher fluid capture and storage efficiency values. The structure with this y-variant can obtain the highest fluid retrieval and storage efficiency values, where the B area contains crosslinked cellulose fibers (cs) or polyethylene terephthalate fibers (Wyman PET 367X2 16.7 dtexpf). The wet integrity, softness and flexibility of the components laminated on this sample of this sample will be tested. This paper is sized for National Standards (CNS) A4 (210 X 297). ) 567061 A7 B7 5. Description of the invention (68. The results are shown in Table 8 (Please read first Note on the back, please fill out this page again) Printed by the Employees' Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs This paper is printed in accordance with China National Standard (CNS) A4 (210 X 297 mm) 71 567061 V. Description of the invention (69) Sample wet Properties, mN / gsm, 1¾ progress zone 39.2 wet integrity, mN / gsm, low density zone 93.1 Table 8 softness, 1J complete sample 73.9 flexibility, 1 / N high density zone

Q 28.8 470 74.6 flexibility, 1 low density H 278

/ N 97.3 371 230 Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs Example 7 Each of the absorption samples tested in Example 7 consisted of an upper layer and a lower layer. Both layers have rectangular shapes. The top layer material is a commercial Unicore 8902 material obtained by Buckeye Technology. It is 9 cm wide and 20 cm long. The lower layer is 10 cm wide and 35.6 cm long. For each acquisition system acquisition time and moisture test, the upper stack was placed on the lower stack so that the front ends of the two stacks were on the same line. A sample R containing a lower layer was prepared on a pad forming machine in a laboratory in the following manner: 1. A carrier thin fabric (CeUutissue 3024, a thin fabric of 18 gsm cellulose) was laid. 2. Place the first set of material channels. This can be done using a different grid. The grid is composed of 10 cm separation holes and channels blocked by 0 cm. The material for the first group of channels is composed of 86gsm Aracruz Eucalyptus fibers and weight i2gsm FiberVisions 1.7dtexpf / 4 mm bicomponent fiber. These weights represent the weight of the material in the first channel that is only 10 mm wide. Therefore, the total average gsm of this pad is based on the Chinese National Standard (CNS) A4 specification (210 X 297). 72 .------ Ί ---------- ^ ---- -------- ^ ---- > > (Please read the notes on the back before filling out this page) 567061 Printed by the Consumers ’Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 B7 V. Invention Description (7G) It is only half of the gsm of this channel. 3. The different grid is then moved 10 mm in the lateral direction so that the open area of the grid is on the empty passage of the pad. This second set of material channels is then placed. The material for this second set of channels is composed of 86 gsm Weyerhauser ND416 fiber and 12 gsm FiberVisinos 1.7 dtexPf / 4 mm bicomponent fiber and Scottrade SXM70 superabsorbent polymer weighing 368 gsm. These weights represent the weight of the material only in the 10 mm wide second channel. The total average gsm of the pad is therefore only half of the gsm of this channel. 4. The resulting structure was then densified using a conventional roll press machine. The density of the obtained first group of material channels was 006 g / cc. The resulting density of the first set of material channels is 0.28 g / cc. 5. A layer of latex 2 is then spray coated onto the structure. The latex used was Air flex 124, a dry product. The latex spray is a 10% solids mixture. This mixture also contains the addition of aerosol OT (75%) surfactant at a level of about 0.01%. The resulting spray mixture of 2 gsm of latex solid was added to the sample. 6. The sample was then dried / aged in a 150 ° C oven (Lindberg / iM) for 25 minutes. Table 9 y Density (g / cm3) Area Width (cm) Density (g / cm3) Area Width (cm) in Area A and Area B samples R 0.28 1.0 0.06 1.0 ^^ This paper size applies to China National Standard (CNS) A4 specifications (210 X 297 mm) ---.--- ^ --- ^-^ 一 ^ installed -------- order --------- line --- Φ-- L (Please read the notes on the back before filling out this page) 73 567061

298 Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs

97.8 The third extraction rate (mL / sec) The efficiency of fluid acquisition and storage 2.19 109.5 1.22 61.0 The sample s was prepared on a laboratory sculpting machine in the following way: L laid a carrier thin fabric . The material is Cellutissue 3024, a thin fabric of 18gsm cellulose. 2. Place the layered material 1. This layer is a homogeneous mixture of weyerhauser ND416 fiber and 12gsm 丨 55dpf / 4mm bicomponent fiber and 184g Sm Scotthausen SXM70 superabsorbent polymer. 3. The resulting structure was then denatured using a laboratory roll press. The resulting density of this structure was 0.02 g / cc. 4. A latex is then spray-coated on layer i over the structure. The latex used is Airf] [ex 124 dry product. The latex spray is a 10% solids mixture. This mixture also contains the addition of about 0.01% level of aerosol> gluten OT (75%) surfactant. The resulting spray mixture of 2 gsm of latex solid was added to the sample. 5. The sample was then dried / aged in a 15 CTC oven (Lindberg / iM) for 25 minutes. From the data in Table 9, it can be found that the sample R with the Nie layer below the y-direction variable has a significantly higher fluid capture than the reference sample "S", and the Chinese paper standard (CNS) A4 specification applies to this paper size. (21〇x 297 mm) ---'-- ^ --- 11 * ^ -------- 1T --------- line · ------- ί ( Please read the notes on the back before filling this page) 567061 A7 B7 V. Description of the invention (72 storage efficiency values. The invention has been described in detail in specific reference materials and preferred embodiments, the invention can be other different Embodiment, and Ming Cai: the details can be modified in various aspects. There is no doubt that these well-known techniques can be changed and modified within the spirit and scope of the present invention. The disclosures, descriptions, and drawings are only for the purpose of δ, and are not intended to limit the invention that is only defined by the scope of these patent applications.

— —ΙΦ Μ -------- 1 ---- 螬 > (Please read the precautions on the back before filling out this page) Printed by the Consumer Cooperative of Intellectual Property Bureau of the Ministry of Economic Affairs

-ΜΎ ϋ I be This paper is sized for China National Standard (CNS) A4 (210 X 297 mm) -75-

Claims (1)

-一 ------- Zhu Ziyue BV :, VI. Application for Patent Range L 9a L ^ ΜϊΛα Patent No. 89124555 Patent Application Amendment for Patent Scope 1. April 7, 1992 1. A type with y-direction A variable absorption structure comprising a layer or a plurality of layers, at least one of which is made of a continuous series of unit operations, and contains functional particles and a first A y-direction variable of the first and second regions, wherein the first region has one or more of a higher density, a higher functional particle content, and a higher basis weight than the second region; the structured fluid The storage and retrieval efficiency is higher than 50. 2. An absorbing structure having a y-direction variable, which includes a layer or a plurality of layers, and it contains functional particles and a y-direction variable including first and second regions arranged in contact with each other, The first region has a higher density than the second region, and the higher functional particles contain one or more of 1 and -higher | weight. The fluid storage and retrieval efficiency of the structure is higher than 50. 3. The structure according to the scope of the patent application] or 2, wherein the first region has a higher density and a higher basis weight than the second region. 4. The structure according to item 3 of the scope of patent application, wherein the first region has a higher density and a higher content of functional particles than the second I region. 5. The structure according to item 4 of the scope of patent application, wherein the first region is disposed on the side of the absorption structure. 6. If the structure of item 5 of the scope of patent application, the step further includes a third zone and a fourth zone, wherein the third zone has a higher degree of desire and higher than the second zone and the fourth zone. Functional particle content. The structure of item 6 in the patent scope, which includes most layers, has an appropriate Shihzang scale-75 in use, and at least one layer in the scope of the patent application has a smaller surface area than other layers. The major surface is 8% of the surface area relative to the major surface. The structure of item 2 of the second patent scope, wherein the structure has a y-direction change I: a result produced by a layer having a y-direction variable. The structure of item 8 of the Qing patent scope, in which the y-direction of the structure is changed: a melon produced by two or more layers having a y-direction variable. , Where at least one layer has substantially a uniform density and basis weight. To U. For example, the scope of the patent application for the 10th variable, 0 ,, ° structure, where the structure has a Z-square 12. For the scope of the patent application, for item 丨 丨, J ,,, ° structure, further including fibers. ! 3. Such as the patent application No. 12 structure, in which the moisture retention of the fiber is at least 80%. 14 · 々. For structures applying for full-time " 12 or 13, the degree should be at least 25%. 15. The structure of claim 14 in which the fiber comprises both natural and synthetic fibers. 16. If the structure of item 15 of the patent application scope further includes an adhesive 17.2, the structure of item 6 of the patent scope, wherein the adhesive is liquid: 5 agents, including latex adhesive, thermoplastic powder, thermoplastic fiber, Two-component fiber and its mixture, among which 18. The structure of the scope of application for patent No. 16 is selected, in which the amount of the binder is present. The paper size is applicable to the Chinese National Standard (Cns) A4 specification (210X297 mm) / υ〇 |凊 Patent range is from 0.1 to 10 percent of the weight of the structure. The structure of item 1 of the Ming patent patent encloses a layer-capturing layer to communicate with the first zone or the first zone and the second zone at the same time. The structure of item 19 of the patent domain is stated, wherein the capture layer comprises a glued connection. Synthetic synthetic substrate fibers, the length of these substrate fibers is 2 to 15 mm. Said: the structure of the Ming patent target enveloping item 1, wherein the basis weight of the-zone is 5G grams per square foot to 1,000 grams per square meter. The structure of item 1 of the patent application range, wherein the density of the first zone is G.15 grams per cubic centimeter to 0.25 grams per cubic centimeter. 23. The structure according to item 1 of the patent application, wherein the content of the functional particles in the first region is 10 to 90% by weight of the superabsorbent material. 24. :: Please claim the structure of item 丨, wherein the basis weight of the second zone is 0.1 grams per square meter to 800 grams per square meter. 25 · If the scope of patent application is the first! The structure of the item, wherein the functional particle content of the second region is 0% to 7% (). The structure of Shishen's patent scope item 1 has a fluid storage and recovery efficiency higher than 80%. 27. The structure in which the scope of the patent application is in terms of items has a wet integrity higher than 4.0 Newtons (mN) per gram per square meter (gsm). 28. The structure as claimed in item 1 of the patent application scope has a softness higher than that per joule. 29. If the structure of the first item of the patent scope is declared, it has a value higher than 70 (70 / N) & Binding 567061 Flexibility. 30. If you apply for the second item in the scope of the patent, ^^ Fu Fujia, the structure has been made up in a row. In a single unit operation, each wide object is made of fibers, functions, U, particles, binders, and carriers. Thin fabrics and additives are made of a material that is one hundred and four hundred ounces. 31 · —a disposable absorbent article, including ... (A) a fluid-permeable top layer, (B) a fluid that cannot pass through it The back layer, (C) t Between the top layer and the back layer 'and optionally fluid communication with the top layer of the structure's absorbent structure', can be selected. ⑼ is between (C) and ⑻ and is in fluid communication with (c), which contains a storage layer of fibers and functional particles, in which the main area of (C) whose surface is in fluid communication with the main area of ⑼ has a surface area smaller than that of (D) 80% of the surface area relative to the main area. 32. For example, the article 31 in the scope of patent application, where (c) contains: (1) the y-direction variable acquisition layer; and (2) the acquisition Capturing and storage of the directional variable of the functional particle content of the layer. The article of scope 31 or 32, wherein the article is a baby diaper, a training pants, an adult incontinence device or a feminine pad. 34. The article of scope 34 of the patent application, which has 80 or Higher fluid storage and extraction efficiency. This paper size applies to China National Standard (CNS) A4 specification (210X297 public love) 07061 35. Objects covered by patent application No. 35 have fluid storage and retrieval efficiencies of better or lower. 36. The article under the scope of patent application 36 has a fluid storage and retrieval efficiency of 180 or higher. A method for manufacturing an absorption structure with a y-direction variable. The structure includes a plurality of layers, at least one of which is made of a continuous unit operation queue, and contains functional particles and an Including the y-direction variables of the first and second regions arranged in contact with each other, wherein the first region has one of a higher density, a higher content of functional particles, and a higher basis weight than the second region Or more, the method comprises: (1) forming a first layer A comprising fibers and, optionally, functional particles, and (2) forming a second layer b comprising fibers and functional particles , So that the main surface of B is in fluid communication with the main surface of a, and the length in the y direction of b is smaller than the length in the y direction of A. 38 · —A method for manufacturing an absorption structure having a y-direction variable, the structure comprising a plurality of layers' at least one of which is made of a continuous series of unit operations and contains functional particles And a y-direction variable that includes first and second regions arranged in contact with each other, wherein the first region has a higher density than the second region, a higher content of functional particles, and a higher basis weight One or more, the method includes: 0) forming a first paper size containing fibers and, optionally, functional particles, applicable to the Chinese National Standard (CNS) A4 specification (210X297 mm) — ^ ~ = Bae Line A8 B8 (2) a layer A and a second layer B containing fibers and functional particles so that first and second regions arranged in contact with each other are formed, wherein the first region has Higher density and higher functional particle content. 39. The method of claim 38 or 39, wherein the layer is formed on the forming net of the air-flow laying method, and the first and second regions of the layer B are formed by A vacuum operation is performed under the second region, and 'there is more pressure under the first-region and below the second region,' as a result, there are more fibers in the first region than in the second region And functional particle deposition. 40. The method according to item 38 or 39 of the patent application scope, wherein the layer is formed on a forming net of the air-flow laying method, and the functional particles are arranged by a forming riser, and at the same time by partially blocking The first and second regions 41 which are distributed to the second region without blocking the first region to form a layer B 41. An absorption structure, which is made by the method of the scope of the patent application This paper size applies to China National Standard (CNS) A4 (210X297 mm)