TW401292B - Absorbent structures comprising fluid storage members with improved ability to dewater high flux distribution members - Google Patents

Abstract

The present invention relates to absorbent structures for use in absorbent articles, comprising a first region for acquisition/distribution of fluid and a second region for storage of fluid. The first region comprises materials, which may have a relatively high capillary desorption pressure, as the second region comprises materials or members exhibiting a sufficiently high capillary absorption pressure so as to still efficiently drain the first region. Thus, the first region comprises material having a cumulative flux of more than 0.075 g/cm<2>/sec at 12.4 cm heights, and/or a wicking time of less than 120 seconds at this height, and second region comprises material which satisfies at least one of following requirements: (a) an absorption capacity of at least 15 g/g at 35 cm in the capsorption test; and/or (b) an absorption capacity of at least 15 g/g at 0 cm in the capsorption test and an absorption efficiency of at least 55% at 40 cm; and/or (c) a Capillary Sorption Absorption height at 50% of its capacity at 0 cm absorption height (CSAH 50) of at least 35 cm in the capsorption test.

Description

*, Hit, r five, the invention ^^ 1 ~ '. Hair date [double for $ invention is mainly used to receive and indwelling body waste such as urine absorption,', such items are: disposable hygiene Items such as baby diapers, learning stick adult incontinence items and the like. Absorbent articles for receiving and retaining body waste such as urine or feces, such as disposable display cloths, school pants, and adult incontinence articles are all familiar with this technology. There have been $ efforts to improve its performance, such as diapers, etc. For better absorbent articles, the capacity 'depends on the ability of a thinner absorbent core or structure in which a large amount of body fluid, particularly urine, can be acquired and stored. (Therefore, the use of specific absorption polymers-often referred to as &quot; hydrogel &quot;, &quot; superabsorbent or hydrocol loid &quot; or &quot; hydrogel f 01in g &quot; Materials are particularly important, see, for example, US Patent No. 3,699,103 issued on June 13, 1972 (Harper et al.), And US Patent No. 3 issued on June 20, 1972. No. 770, 731 (Harmon), which discloses the use of such absorbent polymers in absorbent articles (hereinafter referred to as &quot; hydrogel-forming absorbent polymers &quot;). Indeed, the development of thinner diapers has come directly from The "thinner absorbent core" which utilizes the ability of these hydrogel-forming absorbent polymers often used in conjunction with fibrous substrates to absorb large amounts of fluid, for example, see U.S. Patent 4,673, issued June 16, 1987, No. 402 (Weissman et al.), And (U.S. Patent No. 4,935,022, issued on June 19, 1990 (Rush et al.), Which discloses a fiber that contains one of the fibers used to efficiently manufacture light and short diapers. Double-layer core structure of flexible matrix and hydrogel forming absorbent polymer, see also 丨 9 US Patent No. 5,562,646 issued on October 8, 1996 (Gaomen et al.), And

Page 6 401292

L99 right 7 "Issued US Patent No. 5,599, 335 (Gaomen et al.), Concentration water condenses to form the absorbent core of the polymer region, and when the aggregate expands, it forms a colloidal continuous fluid transport region. In the storage structure, a hydrogel-shaped absorbent polymer is used as an agent (the second one has been added or replaced with a polymer foam material obtained from high internal phase water-soluble oil emulsions (HIPEs), see, for example, November 9, 1993 US Patent No. 5,26 0,345 issued by Japan (Dimary et al.), US Patent No. 5,387,207 (Dell et al.) Recently issued on February 7, 1995, and July 22, 1997 US Patent No. 5,560, 2 22 issued daily (Dimary et al.).

The application of these materials in absorbent structures and absorbent articles is also directed to storing fluids in structures, often considering comfort aspects such as structural thinness, such as disclosed on September 9, 1986, issued to Weismen et al. US Patent No. 4, 6 1 0, 678 named &quot; High-density absorbent structure &quot;; June 16, 1987 issued to Weissman et al. &Quot; Absorbent article with double core &quot; U.S. Patent No. 4,6 7,3,402; issued on December 19, 1989 to Anderst, U.S. Patent No. 4,888, entitled &quot; Absorbing core with wiping layer &quot; No. 231; Belwick_Sundak et al. EP-Α-0 64 0 3 30; US Patent No. 5 1 80 622 (Berg et al.

People); U.S. Patent 5 102 597 (Ruo et al.); U.S. Patent 5 387 207 (Lavon); EP-A-774.242; or European Patent Application No. 96105023.4 filed on March 29, 1996 and May 1996 Application No. 96108394 · 6 or EP-A-0.797. 968 and EP-A-0.810. 078 filed on the 28th. It is further revealed that the area between the user's feet has a low-energy structure, such as PCT application US97 / 0 5046, which was filed on March 27, 1997, and is related to fluids that contain good accessibility in objects and specific Liquid storage

Page 7 401292 V. Description of the invention (3) Storage capacity »Distribution of the area of the material — Purpose of the invention A specific area of the material. Although these materials have been designed with a smaller wool * 2 delivery mechanism at the final storage material to have materials that are closer to the nearest material and closer to the load zone, and / or increase hydrophilicity, it is unknown to obtain And / or distribution of liquids with larger pores and smaller hydrophilic materials, which can be used under certain conditions; not only easy to transport fluid and easy to retain low fluid acquisition and / or distribution performance, adverse effects, such as re-wetting The acquisition / distribution of the nature of cloth or distribution. Special Mg is used to balance the acquisition and distribution. Therefore, one object of the present invention is to have fluid treatment properties: Supply: Absorptive structure, in which the distribution of the component I is good. Storage materials or materials with distributed behavior __ Fen 5 components especially present improved fluids Another aspect of the present invention! ! Dehydrate efficiently. To store materials or components] :::: Fluid storage with high liquid absorption capacity Another use of the present invention. Storage materials or components = provide absorbent shaped absorbent polymers with -high capillary energy absorption. 1. The absorption storage material or member contains a hydrogel according to another aspect of the present invention. The appropriate material is selected for the gadolinium and the following cap adsorption test (caps 〇rpti ο η invention general color structure). The present invention is a first-effect # α region and a second region / sexual structure 'having a first-quality material in liquid communication with each other, and a second,' wherein the first region contains good liquid transportability and a region contains It has good liquid absorption properties and can make page 4 ^ 129 ^ V. Invention% 4) The first zone • one of dehydration materials. Therefore, the material in the first region can be described as having a cumulative flow rate greater than 0.075 g / cm² / sec with a height of 12.4 cm, preferably greater than g / cm² / sec. In addition, the fluid distribution property of the first material can be represented by the material having a capillary time of less than 120 seconds, preferably less than 50 seconds. In a preferred embodiment, the capillary time of 8.3 cm is less than 80% of the capillary time in a vertical direction in a preferred direction (such as a vertical direction), and the cumulative flow in this preferred direction is greater than Q. 1 20 g / cm² / s. In order to dehydrate this first area, one of the materials in the second area must be full (good absorption properties, such as can be evaluated by a lid adsorption test. Therefore, this material has at least 15 g / g, preferably at least 20 g Capillary Absorption Energy (CSAC 35) of 35 cm / g ^ In another embodiment, the material has at least 15 g / g, preferably 20 g / g, more preferably more than 25 g / g

G, more preferably a capillary adsorption absorption capacity (CSAC 0) greater than 35 g / g of 0 cm, and a capillary adsorption absorption efficiency (CSAE 40) of at least 55%, preferably 65% of a 40 cm.

Alternatively, this material has at least 5 g / g of CSAC of the first material actual CSDH 90, or at least 55% of a CSAE of the first material's actual CSDH 90, and at least 15 g / g of CSAC. In addition, the material in the second region has at least 35 cm, preferably at least = cm. More &amp; better at least 60 cm, more preferably at least 80 cm 0 cm Capillary adsorption absorption height (CSAH) which absorbs 50% of the south degree energy. In a preferred embodiment of the present invention, the first region of the absorbent structure includes

401292 V. Invention (5) The fibrous material i is preferably a chemical embodiment. In the embodiment, the first region may contain ::; In another embodiment after the mesh is formed, the first area is polymerized with foam material, preferably from the second: cotton. In the first embodiment, the first &amp; domain contains a high surface area material, and the surface area material is an open cell hydrophilic. Property = Internal phase water is soluble in oil emulsion (HIPE)-a kind of aggregated water =: It is collapsed, if necessary, particles: In another embodiment, the second region contains less than 15% of the total weight of the second region or Less than 75% of other types of absorbent articles, incontinence articles, feminine hygiene articles, school pants, and other absorbent structures of the present invention, if necessary, include more than one not in direct contact but fluidly positioned and separated through the first region and separated by At least some of the diagrams defined here simply say aj. Figure 1 is a diaper as an example of an absorbent article; Figures 2 A-2 D are cover adsorption test benches; Figures 3 a and 3 b show vertical capillary tests. Definition Here "absorbent article" refers to an absorbent and containment body that is placed against or near the user's body to absorb and / or synthesize fibers. Another material is mechanically treated. Water soluble—absorbed into microfibre cotton. Compared with foam, type. The second area of rubber molding, such as baby analogs, is better than the crotch area. It is a kind of oil emulsion. The structure is in the dimension. In addition, Gao Jia is obtained from a high-level open grid. Room mat material, preferably to the total weight of the domain. Infant diapers, adults' which contains this ~ area, so that they are separated from each other by the longitudinal domain.

Page 10 Η ___________ V. Description of the Invention (6) Device for body discharge. Here &quot; body fluids include but are not limited to urine, menstruation, vaginal discharge, sweat, and feces. Here &quot; disposable &quot; describes unintentional washing / cleaning or recovery or reuse as an absorbent. · Absorbent articles (that is, disposable after use, preferably recycled, buried or discarded in other * environmentally friendly ways). Here &quot; Zdimensional &quot; refers to the direction orthogonal to the length and width of the component, core or object, and the Z dimension often corresponds to the thickness of the component, core or object. Here, "X-Υdimensional" refers to a plane orthogonal to the thickness of a component, core, or object. X-dimensional dimensions often correspond to the length and width of a component, core, or object, respectively. Here &quot; absorbing core &quot;; Refers to the components of the absorbent article that are mainly responsible for the fluid treatment properties of the article, such properties include acquisition, transport, and so on. Therefore, the absorption core often does not include the top or back layer of the absorbent article. Here & quot "Absorbing member" refers to the components in the absorbent article that often provide one or more fluid processing functions, such as: fluid acquisition, fluid distribution, fluid transport, fluid storage, etc. The absorbent member may include an entire absorption core or only a part of the absorption core, That is, the absorbent core may include one or more absorbent members. "Receiving member" is the component of the absorbent member of the absorbent core, which is mainly used for storing the absorbed fluid. As described above, the storage absorbent member is composed of horsepower ~ capillary capacity. The fluid can also be distributed. Π, then perpendicular to the "area" or "area" refers to a part or section of the absorption member here &quot; layer &quot; means that the main axis is X-Υ- It is also known as the Shanghai Changsheng and acoustic components. It should be understood that the layer &quot; is not limited to a single layer or sheet material; one of the factors absorbs a mulberry layer or a combination of several pieces or nets containing the required material type, because Layers can include &quot; several layers &quot; and &quot; layered &quot;. Layers &quot; packages

431292 5. Description of the invention ⑺ should also understand that "top" refers to, for example, the closest absorption layer left in the "It · μ YS a" absorbing member of the invention, and often faces the opposite, &quot; The body is most closely connected to the absorbent member of the absorbent article and often faces the back layer. % Used here has percentages, ratios and proportions, unless otherwise specified, are calculated by weight. Absorptive objects ----absorbent # including substructure or absorbent member);

-An absorbent core (J-a fluid that can penetrate the top layer a)-the fluid does not penetrate the greedy, "-other optional features, such as locking elements or tape. Figure 1 is the present invention for diaper absorption A plan view of an exemplary embodiment of the article. Π @ diaper 20 is shown in unfolded state in FIG. 1 (that is, the sideband elastic band is left in a relaxed condition, and the elastic band causing contraction is pulled out.) Part of the structure to more clearly show the structure of the diaper 20, while away from the summer diaper 20 part-the outer surface 52 faces the observer. As shown in Figure 1, the exhibition includes a liquid penetrable top layer 24, a and The liquid-impervious back layer 26 joined by the top layer 24, and an absorbent core 28 located between the top layer 24 and the back layer 26; ^ The personalized side panel 3 0; the elasticized foot cuff 3 2;-the elastic waist feature 3 4; And locking system, including a double tension fastening system 36. The double tension fastening system 36 preferably includes a main fastening system 38 and a waist locking system 40. The tightening system 38 preferably includes a A pair of fixing members 42 and a landing member 44. The gland lock / system 40 is shown in Fig. 1 and preferably includes a pair of first connection groups 46 and 〆 first 〆

401292 V. Description of the invention (8) --- Attachment assembly 48, the diaper 20 also preferably includes a positioning sheet 50, which is located below each of the first attachment assemblies 46. The diaper 20 is shown in the figure and has an outer surface 52 (facing the viewer in FIG. I), an inner surface 54 opposite the outer surface 52, a first waist region 56, and a second waist region 56 A waist region 58 and a perimeter 60 defined by the outer edge of the diaper 20, wherein the longitudinal edge is 62 and the end edge is 64. The inner surface 54 of the diaper 20 includes the portion of the diaper 20 that is adjacent to the user's body during use (ie, the inner surface 54 is formed by at least a portion of the top layer 24 and other components joined to the top layer 24). The outer surface 52 includes the part of the diaper 20 remote from the user's body (ie, the outer surface 52 is formed (at least) by at least a portion of the back layer 26 and other components joined to the back layer 26. The first waist region 56 and the first The two waist regions 58 extend from the peripheral 60 end edge 64 to the lateral midline 66 of the diaper 20. The waist regions each include a central region 68 and a pair of side panels, which often include lateral portions outside the waist region and are located on the first waist The side panels in the region 56 are represented by 70, and the side panels in the second waist region 58 are 72. Although not necessary, each pair of side panels or each side panel is the same and preferably mirrors each other. Located in the second waist region 58 The side panel 72 can be elastically stretched in the lateral direction (that is, the elasticized side panel 3 0), (the lateral direction (X direction or width) is defined as the direction parallel to the lateral centerline of the diaper 20; the longitudinal direction (y direction or Length) is defined as the direction parallel to the longitudinal centerline 67; and axial direction (Z direction or thickness) is defined as the direction extending through the thickness of the diaper 20). Figure 1 shows a specific embodiment of the diaper 20, wherein the top layer 24 and the back layer 26 -The body passes through the core and base area and is approximately larger than the length and width of the absorbent core 28. The top layer 2 4 and Layer 26 extending beyond the absorbent core 28 thus forms the edge of the periphery 60 of the diaper 20, the periphery 60 defines the outer perimeter or edges 20 of the diaper i.e.

Page 13 401292 V. Description of the invention (9) Edge, periphery 60 includes longitudinal edge 62 and end edge 64 ° Each elasticized foot flanging 32 can be similar to any of the above-mentioned foot straps, wings, obstacle flanging or elastic flanging, each The elasticized leg flange 32 preferably includes at least one inner barrier flange 84, which includes a barrier wing 85 'and a partitioning elastic member 86, as described in the aforementioned US Patent No. 4,109,803. In a preferred embodiment, the elasticized foot flange 32 additionally includes an elastic pad flange 104 with one or more elastic bundles 105 located outside the barrier flange 84, as mentioned in the aforementioned No. 4,695,278. As described. Dividing edge 64 28 waist edge 83 The diaper 20 may still contain 34. At least one waist edge 83 of the elastic waist feature 34 is longitudinal. Therefore, the diaper 20 is directed to the waist of the user. Disposable one is located at least from the first elastic waist end edge 64-type diaper waist area elasticized part of the back layer 2 to 6 of the elastic cloth assembly. The elastic waist is well received by the top and the elastic body. In spite of this, other urines between the mechanically stretched layer 24 and the back member 76 of the simple feature 34 are also included. The top layer is preferably made of a structure that is not separately manufactured and improved to match at least the central extension, and features 34 packages of extensions. Another belt 35 can form a diaper-containing portion in the area 6 and 8 and is provided with two. Part

Layer 26, and a double-layered—elastomer member 76 member 77. Detailed in WO as the material closest to the user's skin, but not necessarily female = layer but still produces a suitable absorbent core structure 93.16.6669 which saves material costs such as comfort and absorptivity required to mention an elastic Absorptive core 2 of the waist feature 2 At least part of the cloth 20 is less self-absorptive to be placed near the elastic waist feature, in the second waist region. The top layer 2 4 is more material, which contains and is located on the back layer 2 6

401292 V. Description of Invention (10) __ Manufacture. For example, the body case of the absorption core itself. The liquid penetrability, softness, compliance, surface can be replaced and separated from the top layer. The receiving core only needs to be used in conjunction with a back layer to make the stimulating material, which is absorbent. Areas that provide comfort in absorbent articles and related articles. Generally speaking, one of the main design features of absorbent sanitary articles is around the ends, and the place (emission area) covers these bodies. Each area of the body and cavity that generates and absorbs objects is called &quot; load, which covers these discharge areas and is placed on the user's body so that they are placed on the feet. When in use, the object will generally extend upward ( For the standing position of the wearer) In general, the front and back of the user, these objects and right — so wearing these objects makes the length of the product size, the phase alignment, and the width of the object; to: == : 2 = square phase calibration. 2. The user's field extends from left to right. The space between the user's feet may limit the good cooperation of this area; It is comfortable for the user's crotch width. '' May cause poor performance and reduce the narrowest ΐ i ΐ ΐ f Ϊ degree, and the most suitable fit is the point between the feet, and between the feet-and in the scope of the present invention is called "quotation point" . (If the child's h z shape is not obvious, the object can be placed in the target user group.) Determined by the user in a better standing position, and then-the stretchable wire is on page 15 of 401292 ) &quot; ----- Figure 8 is placed around the foot in the structure. The point corresponding to the intersection of the silk in the object is regarded as the point of the object, so it is also the point of the absorption core attached to the object. Although this point of the object is often located in the middle of the object (in the longitudinal direction), it is not necessarily so. The part of the object used to wear in the front is likely to be smaller than the back (rear)-in length, width or both Or surface area, and the puppet point need not be in the middle of the absorbent core, especially when the absorbent core is not located in the longitudinal center within the article. The crotch region is the region that surrounds the crotch point to cover each body cavity hole and each emission region β. Unless otherwise specified, this region extends over 50% of the core's full length (defined as the distance between the core's front and back waist edges, which may be approximately The length of the vertical centerline is a straight line). If the puppet is located in the middle of the object, the crotch area starts from (when counting the nose from the front core edge) at 25% of the total length and extends up to 75% of the core's full length ' Alternatively, the front and back quarter lengths of the absorbent core do not belong to the crotch region, while the rest belong to the trans-region. It has been known that the length of the crotch region of a baby diaper using 50% of the full length of the absorbent core has been confirmed to properly describe the fluid treatment phenomenon. If the present invention is applied to objects of very different sizes, it may be necessary to reduce these 50% values (such as in the case of severe incontinence objects) or increase this ratio (such as in the case of ultralight or light incontinence objects). In short, this area of the article should not extend significantly beyond the user's emissions area. If the position of the point shifts the midpoint of the object 'the neck area still covers the core full length (in the longitudinal direction) of 500 / 〇' but it is not evenly distributed between the front and the back, but is proportional to this offset Adjustment. As an example of an object with a core length of 500 mm, and it has the middle 401292. V. Description of the invention (12) and the leading edge can be away from the second edge, and the area will extend away from the leading edge by 125 mm and 50 mm. Shift (that is, away from the second point, or the right edge of the point is 100 mm from the core edge to 100 mm from the core edge of 100 mm). The point is an object with a total length of 1 ^ from the core edge of the former crotch area.

The leading edge will be at the following distance.

Lfecz-Lcp * (1-\). For example, 'absorbent articles can be about 12 to 18 kg of baby diapers' for wearing on young children (also MAXI size. Then the article ruler = generally known in the industry (& amp δ 'The crotch region must be able to receive approximately the urine load. 胯. The total area and size of the crotch region depends of course on the width of the absorbent core, that is, if the core is narrower in the span region than outside the crotch region. 'The employment area has a smaller area (surface) than the rest of the absorbent core. Although the boundary between the crotch area and the rest of the object can be a curve, it is roughly a straight line in this description, and the object's longitudinal centerline The front cross-section areas of the front and rear areas are further defined by the core width in each area, and the area of the crotch area beside the surface is defined by the length of the crotch area and each width as a complement of the crotch area. Element, the absorbent core also contains at least 'but most of the waist region powers' extend outside the crotch region toward the absorbent core and / or rear. The absorbent object and especially the various elements of the absorbent core are further distinguished by their function

401292 Five 'Explanation (13) __ Therefore, the area closest to the load point of the object absorbs the body waste and does not stay on the surface of the object. The skin of the person who acquired the object has too many bad connections. This area is often called This effect is achieved by considering another final extraction of the receiver's discharge, which may be directly close to the acquisition: = one of the region acquisition regions. It can be mainly in direct contact slightly away from it (such as two storage ° two-a storage area, can be in direct contact with each other (such as one storage ^; one 2 + +), or not ^ ^. -X. ^, Storage area Placed in front of and behind the object). In the case of Ren Sihangmi, the main function of the possible cloth, that is, the main], has another "where there is a fluid distribution from the acquisition area to the storage area. 疋 飞 菔" From the pole: collect m, stomach and other areas can be combined In the overall and homogeneous structure or competition, at least part of the area is suitable for different fluid treatment properties, in order to be more suitable for its specific function, private ^ * n from other areas. ㊉ It is better to design the material for different properties. According to the M storage area of the present invention, and at least one preferred design, there must be at least one fluid storage area, and each area can have multiple secondary fluid acquisition / distribution areas. One of the dimensions is xy extension; for example, flat (that is, the main It has a fixed thickness and is located in a variety of different or three-dimensional shapes. And these areas can be circumscribed. ^ In the position, for example, it is layered or contains multiple areas in the xy direction, which minimizes the sense of privacy and comfort. The bad preferred embodiment has been configured so that it only responds to the unloaded (dry) sound of the user, and ideally has no negative impact. This must be taken into account and the objects in the loaded state,

401292 V. Invention af (14) In the latter case, a 4 * 〇. Even a small width G is present: The preferred embodiment has-inch in the crotch region and also has a lower fluid storage capacity in this region. For a load object, the volume load between the feet is not increased. Although various areas must be fluidly connected to each other, they must be moved from the acquisition area to the area stored in ρρ. Storage area, and by moving through the distribution as the case may be, although each area is quoted by its main function, it also has at least some degree of other functions' hence'—the fluid absorption storage area also has fluid distribution work :, and a fluid acquisition / The distribution area will have some fluid retention capacity. In addition to observing various areas of the absorption core from the perspective of function, the absorption member often needs to consider the situation where one or more absorption members or structures constitute an absorption core. The basin can contain substructures, so that an absorption core can be regarded as containing One—as is the case in most modern absorbent core designs—or several different materials. In the scope of the present invention, the material forming the absorbing member is a component whose measurable "material properties" can be measured, whether or not the material is a "pure" material (such as a superabsorbent material particle) or a homogeneous material. An accumulation (such as a piece of cellulose fiber, or a foam structure, or a superabsorbent particle), a mixture of two or more pure materials, or an accumulation of materials (such as a mixture of superabsorbent particles of the same nature, or a superabsorbent particle and The mixing of cellulose fibers or another device that constitutes a number of materials that can distinguish an absorbent member (such as a two-layer composite). Therefore, the fluid treatment properties of a "fluid treatment member" can be evaluated, and for specific structures It 1 It is also possible to evaluate the properties of the materials or substructures contained in it. The above functional areas can be composed of the same material (such as cellulose webs, or fibers

Five notes on page 19 (15)? ', A mixture of superabsorbent materials) 疋 Different regions, better such as using different properties to change, lending + different components and / or material thickness is also ^ or θ & χ® By changing the hydrophilicity of the other fluids of the 2 fluid treatment by a much wider range of f * Α ^ materials, ^^ MJU ± x can have a wider range of designs, although the-area works well ζ "area The required properties of the medium absorbing member or material are determined by the distribution member, provided that the following 5 are known, and the following fluids are known to provide fluids within the scope of the present invention and merged by two net suction storage members. 1 = For example, if it is applied to an absorbent object, it has two center lines: one :::: material, these objects :: in the plane and the place where the object stands "longitudinal" refers to the vertical plane alignment (such as approximately One of the left and right halves needs a fluid rotation mechanism to effectively 7-line or direction. Absorbent material on a large area may be required. Absorb and transport without making flow Yes; the driving force generates the rational phase of this absorbing object. The direction of the force is square cloth, so it is often unable to meet the body's energy. The fluid is discharged from the absorbing object on the absorbing object, and the direction of flow is upward. That is to say, it resists gravity. Orientation is $ 2. 2: Fine: 5 to achieve this capillary effect ', and can be located in the vertical direction, that is, configured along the direction of gravity-for evaluation. I β The key function of the material is increased capillary height

401292

Because absorbent articles can have significant ... capillary improvement capabilities due to the size of the wearer;

For example, the amount of fluid to be delivered by 12.4 cm (5 ~ Jing SC) is also important. The baby wears a urine load of 300 ml, and the amount of drainage (normally = 2 large ml, the amount of drainage) can reach 15 ml / sec. ^ However, due to the saving of material use and the comfort and coordination requirements of the wearer, low material use is needed. Therefore, the material needs to be used in a short time; the transport of a large amount of fluid through a small section of this material can be summarized. &quot; Vertical capillary flux (Vertical wi eking flux) "parameter indicates that it is defined as the cumulative amount of fluid delivered to a known height through a material profile within a specific time, the unit is ml / cm² / s, and then the fluid front (fluid frOnt) is a material that resists gravity and can penetrate to a certain height. These parameters can be determined most simply by using the vertical capillary test described below, in which a material is measured with or without external force (such as gravity or centrifugal force). Ability to transport fluid through its internal voids (such as holes). Basically, a sample of material is placed in a vertical position protruding out of the fluid storage tank. Wetting front) and the fluid and quantity picked up by the material to monitor the rotation against gravity. According to the known Lucas-Washburn relationship of the capillary system-it is often applicable to Pore-like system, which can easily increase the capillary height by reducing the effective pore size of the distribution material

P.21 401292 --n ------ Fifth: Send ^ 1 Ming (17) degrees. For a specific material, whether it is urine or menstruation with a specific surface energy, to reach a specific desired capillary height, a small capillary diameter is required. For fluids ~ known fluids, and the capillary (or pore) diameter required for performance can be approximated obviously for large capillary heights, this amount of fluid 'and significantly reduced flow is due to small holes (according to 1 e ) Is high, but 'these small capillaries cannot handle the cumulative flow larger than this small pore-like material, which is caused by the Hagen-Poisseuil friction (or low penetration). Therefore, the large flow And provide: Although the "knowledge material exhibits large height and low flow or low height is known to be available, such as the following materials to overcome this trade-off relationship,

-At least 0,7 5 ml / sec / umbrella 8.8 ml / sec / cm2, better knife? 'melon! , Preferably greater than 0.12 and at the same time more preferably greater than 0.25 ml / sec / cm 2, -for a fast capillary of 12.4 cm of Shishigu-. The size of the car is less than-second, more preferably less than 50 seconds. To achieve the distribution point. The fluid shake &amp; / eight + ^ applicable to the present invention is manufactured by various procedures. The knives may include a variety of materials and may-a suitable member may be a net containing elastic fibers, such as (air-laying), or locating in this net. ",, set hying) and similar known procedures to form a member according to the present invention φ π # well-known synthetic fibers such as Yi Er-good elastic fiber 'except based on I on ethylene diformate, polyester, poly 40.1292 '' Five Y Reading ^ Ming (ιί &quot; &quot; &quot; &quot; 'Amine, elastic polyolefin, or if it is a combination of two-component fiber form, a particularly preferred fiber is chemically hardened to reverse the expansion Cellulose fibers. "Chemically hardened twisted and warped fibers" here means any fibers that have been hardened by chemical devices that increase the hardness of the fibers in dry and liquid conditions. These devices include the addition of chemical hardeners such as coatings and / Or penetrate into the fiber, these devices also include changing the chemical structure of the fiber itself to harden the fiber, such as the use of cross-linked polymer chains "by the individualized (ie bulky) form of cross-linking the hardened fiber as described in US Patent No. 3,224,926 issued to Barnard on December 21, 1965; US Patent No. 3,440,135 issued to Zhuang on April 22, 1969; January 13, 1976 Issuing a Certificate to Kotji Patent No. 3,932,209; U.S. Patent No. 4,035,147 issued to Sanginis et al. On July 12, 1977. Better fiber description issued to Dean et al. On April 18, 1989 U.S. Patent No. 4,822,453; U.S. Patent No. 4,888,093 issued to Dean et al. On December 19, 1989; U.S. Patent issued to Moor et al. On February 6, 1990 No. 4, 898, 642. Other polymeric hardeners that can be coated or infiltrated into cellulose fibers include: cationic modified powders with nitrogen-containing groups (such as amino groups), such as bridge water in New Jersey, USA Suppliers of National Starch Chemical Corporation; latex; wet strength resins such as polyamide-epoxy resins (eg, Kymen eTM 5 5 7 Η, Hercules Inc., Wilmington, Delaware, USA) ), Polyacrylamide resin (for example, described in US Patent No. 3,5 5 6,9 3 2 issued to Cosia et al. On January 19, 1971; also as Xipetexen, New Jersey, USA Polyamide (sold under the trade name Pare zTM 631 NC); urine

Page 23 401292 V. Description of the invention (19) &quot; 'Prime methyl and φ amine methyl resin, and Polyethylenimine resin. Here, the suitable weaving dimension of the fluid-absorbing member is preferably hardened by a chemical reaction. For example, a crosslinking agent can be applied to the fiber, and the fiber is chemically formed after the application. The parental bonding within the dimension can increase the fiber. Although the hardness is better than the use of cross-linking in the fiber to chemically harden the fiber, other types of reactions that chemically harden the fiber are not excluded. In better stiffened fibers, chemical treatment includes intra-fiber cross-linking of cross-linking agents, and these fibers are in a more dehydrated, defibrillated (i.e., individualized), twisted, and tortuous state. Suitable chemical hardeners include monomer cross-linking agents, including but not limited to C2-c: 8 dialdehyde and C2-c8 monolayer, which is provided with an acid function Γ ″ to form a crosslinking solution. These compounds are capable of reacting with at least two hydroxide groups in a single cellulose chain in a single fiber or in adjacent cellulose chains. These crosslinking agents used to prepare hardened cellulose fibers include, but are not limited to, glutamic acid, glyoxal, formaldehyde, and glyoxylic acid. Other suitable hardening agents are polycarboxylic acids. Vinegar such as citric acid. Polycarbonate hardener and the process for producing hardened fibers are described in US Patent No. 5, 丨 90,563 issued on March 2, 1993. The crosslinking effect in these cases is to form a hardened and Fibers that are easy to maintain a twisted and buckled structure when used in absorbent articles. Such fibers and processes are described in the aforementioned patents. As described in U.S. Patent Application No. 304, 925, these fibers may be prepared by internal crosslinking in a more dehydrated form at the same time or after the fibers are dried and defibrillated. Hardened cellulose fibers, but it does not mean that the present invention necessarily excludes other hydrophilic, chemically hardened, twisted, and warped fibers. Other such fibers are described in (but not limited to) the aforementioned U.S. Patent 3,224,926,

Page 24 401292 V. Description of the invention (20) --- 3’440’135, 4’035’U7, 3,932,209. Other non-chemical devices that provide hardened, twisted, and warped cellulose fibers are also within the scope of the present invention ', such as high consistency (often greater than about 30%) mechanical processing (such as frotapulping and / or refining, etc.). These methods were detailedly issued to Mary L. Minton on December 11, 1990 and September 14, 1993, respectively. U.S. Patent No. 4,976,81 9 entitled &quot; Pulp Processing Method &quot; And 5, 244, 541. Other better nets still contain a type 2 fiber with a higher surface area. Although, for example, composite fibers with very small diameters (microfibers) or special surface structures are also suitable, one of the currently preferred fibers for this high surface application is eucalyptus pulp fibers. Eucalyptus provides the capillary for chemically hardened, twisted and curled fibers Pressure characteristics, and it is not easy to pass through a belt sieve like a large amount of fine cellulose described below. Particularly suitable eucalyptus fibers include the species eucalyptus grandis. y Other suitable surface area fibers added with hardened cellulose fibers before forming a wet web from a slurry include, but are not limited to: a variety of different cellulose and composite maintenance materials, such as the certificate issued to Yang on June 8, 1993 U.S. Patent No. 5, 2 1 7, 445, et al. These materials include non-hardened cellulose fibers (also cellulose pulp fibers), highly refined, hardened and non-hardened fibers. Powdered fibers &quot;, and high surface area cellulosic materials such as stigmatin fibers (see below). The high surface area cellulose is well mixed with the chemical fibers in the slurry, and the slurry is wetlaid. Mixers, repuiper, deflaker, valley beater, refiner (such as single / two-disc refiner) or other equipment familiar with the art Come to mix, y 3 refining these hardened fibers and high surface area cellulose ^ ^ Ghost or refined 401292 V. Description of the invention (21) Make the liquid suspended cellulose fibers pass through. Dimensional magnetic masking ancient master] straight! Orifice, but also from the following, the cellulose fiber is coated into cellulose with the same surface area, / fiber A qM ^ Qnnn., Dan T. The suspension is subject to a pressure drop of at least 4 kPa (300 psig) and high speed reduction Speed shock. Repeatedly let the suspended matter pass through the hole: 2: 2: fast floating matter, please see November 20, 1984, until it is reported that it is generally stable.

No. 4, 483, 743. When the elastic fibers such as cross-linked torsional hardened fibers are combined, the resulting net can be as shown above. The surface area is in a wet condition. The tensile strength of the net is significantly reduced. In particular: this ;: the: easy to handle and provide the wet and dry state of the nature: a combination device can be used in the net or the entire net, can be in shape = will The coupling device is added to the poly 'after being deposited on the forming line, before drying, after drying, or a combination of both, and the bonding device is applied to the crystal mesh to achieve this effect. &quot; Although the specific bonding device that provides this specific strength to the forming web is not important to the fluid handling performance, it is known that thermoplastic fibers provide a better choice 'and a chemical bonding web is a better implementation. In a preferred embodiment, the fluid acquisition / distribution material comprises a wet-laid web of one of the hardened cellulose fibers, and the web is from about 0% to about 50%, preferably about to about 25%, and more preferably about 7% to Approximately 15% of the thermoplastic bonding material is reinforced, where the thermoplastic bonding material provides a bond at the intersection of the bonding fibers with other bonding fibers or high surface area fibers of chemically hardened, twisted and honeycomb cellulose fibers. This thermally bonded web is generally formed as a whole from a web comprising a better even distribution of stiffened cellulose fibers and thermoplastic fibers. Network formation

Before (22), thermoplastic weaving materials could be mixed with fine fibers and hardened cellulose fibers in liquid slurries. After forming, the web is heated until the thermoplastic portion of the fibers melts to thermally bond the web. Specific non-limiting examples of suitable fibrous materials include polyester hot-melt fibers (KODEL 410), two-component fibers, three-component Weaving fabrics, mixtures and the like. In addition, 'a crumpled polymer-based bonding fiber can help increase the bulk of the web'. One of the various pleated types of currently preferred polymer-based bonding fabrics is Hoe chst-Cel an ese Linz) Co-Polyolefin bicomponent fiber 'Hercht Serlinz Corporation sells under the name CELBOND® 25 type 5 lot number 3386 5A' which is about 33 dtex (or about 30 denier) and about 6 4 () Fiber length in mm. For fluids that can be stored at any temperature between about 1 75 ° C and the temperature at which the thermoplastic bonding material can be stored, the thermoplastic bonding ethylene, polydigas gaseous fluid, but the "hydrophilicity" and the high thermal envelope of the material used here, It is preferably about 0. The thermoplastic bonding material available for the thermoplastic material taking / distributing member also includes an agent that can be melted at a temperature that does not greatly damage the cellulose fibers, and the melting point of the material is preferably less than about 75 degrees c, and preferably about 75 degrees. Degree to. In any case, the melting point should not be lower than the object of the invention, where the melting point is often not lower than about 50 degrees c. The material can be, for example, polyethylene, polypropylene, polyester, or polyacrylic fiber. It is better not to inhale or absorb liquid significantly. The water-repellent surface is wetted with water.) = Plastic ... becomes better. Take T as about 0.1 cm to about 6 cm and 3 cm to 3.0 cm. Fan Jia, the length of the knife, is melted by the combination of ventilation, but does not drain.

V. Description of the invention (23) == External light, * Cylinder drying, Yankee tube, etc. In another variation, the net is embossed on one or both sides of the circumference. This technology is described in detail in US Patent 4,590. , 1 π. As mentioned above, fabrics such as tissue paper sheets and other water-permeable non-woven sheets can be used in place of or in addition to the above-mentioned bonding means. A better starter material includes chemical cements to increase the physical integrity of the absorbent structure and / or facilitate web processing_especially the addition of bonding devices for wet-laid webs can be known in the art Provides starch, latex, and resin cement for increased integrity. Suitable resin binders include those known to provide wet, dry or wet strength in paper structures, see, for example, TAPPI Paper No. 29, Wet Strength of Paper and Paperboard, Pulp and Paper Technology Association (New York 1 96 5 ). Suitable resins include polyamide-epoxy propane resins and polypropylene amine-glyoxal resins. Other resins useful in the present invention are urea formaldehyde and melamine formaldehyde resins. The more common functional groups of these polyfunctional resins are nitrogen-containing groups, such as groups attached to nitrogen and ammonia groups. Resin can also be used in the present invention. At present, the second chemical addition and bonding device is a polypropylene glyceride-glyoxal resin sold by West Germany Picker &quot; 631 NC of West Peterson, New Jersey. . . . Named starches, especially cationic modified starches, can be used as additives in the present invention. These cationic powder materials modified with nitrogen-containing groups (such as methyl 01 group and nitrogen group attached to nitrogen) From National Starch Chemical Company of New Jersey Water, USA, other suitable cements include, but do not bridge polyacrylic acid, polyvinyl alcohol, polyvinyl acetate.程度 The degree of chemically added cement is usually about 0% to 5% of the total weight of the net.

Page 28 ini 2 &amp; 2 ------- 5. Description of the invention (24), but a large amount of hydrophilic chemically added adhesives can be used. If the chemical additives are added to the hardened fiber as a liquid slurry, the It is also known to use conventional non-hardened cellulose fibers or high surface area cellulose to enhance the retention of chemically added cement, which can be printed, sprayed, or applied to dry or undried webs by other methods known in the art. 〃 In addition to the use of a chemical bonding device, fluidic materials can also benefit from the integration of a heat-adhesive polymer microgrid into the above materials. Therefore, various methods including wet, air, carding, and other methods can be used to mix and form the above-mentioned ingredients used in suitable and better fluid acquisition / distribution materials. At present, it is better to use wet Method. (This technique is well known for the technique of wet placing cellulose fiber material to form a sheet, such as dry lap and paper. These techniques are generally applicable to hardening fibers for wet placing to form a wet sheet for use in the absorbent structure of the present invention. Wet placement techniques include: handsheeting and wet placement using a paper machine such as that shown in US Patent No. 3,301,7,46 by lh Sanford et al. Due to chemical hardening, twisting, and warping of fibers Performance, in particular, it is easy to agglomerate in the liquid mass, so it is better to perform the following specific treatment modification when the paper machine is wet-laid. Generally, the liquid slurry of the fiber can be deposited on the pore-shaped forming line and wet The pulp is dehydrated to form a wet web, and the wet web is dried to form a wet web. The fiber liquid pulp used for the wet is preferably about 0.02% to 2.0%, preferably about 0.02% to 0.2% of the total consistency of the fiber based on the total weight of the pulp. A device called a headbox is often used to deposit the slurry. The headbox has one of the s 1 ice Opening, convey the liquid slurry of fiber on the hole-shaped forming line, the forming line can Designed for dry shots or other papermaking processes

P. 29? # 明 颜 玛 （25)-Fabrication and mesh size 'can be used in the design of the camera known in the art for dry shooting and forming thin paper pieces. Suitable commercially available head cases include: open, fixed top, Double-line, slash, and barrel former box. Ϊ After the formation of T, dehydration and drying can be carried out by foil, suction box, or other real or secret flow. Generally speaking, dehydration can increase the fiber thick a to about 8% to 30% of the wet mesh. Between heavy foundations, preferably 8% to 23% =; therefore I I need wet M (Wet — PreSSing) to dehydrate. About 23% or more Γ y is not good, after the dehydration of the mesh may but not necessarily self-form Line to. Drying cloth, the drying cloth sends the net to the drying device. Package two: Various known technologies make the wet net dry. When the two materials in the net are combined, it is necessary to thoroughly and uniformly make the thermoplastic junction flow into the void volume of the net, for example, by the temperature. Dryer's hot barrel S dryer, two-heat osmotic dryer and fibers containing about 95% to 99% of Yankee dryer ^ The dry-laying net is preferably completely dry The net, and the addition of fully dry "2 can be tolerated after achieving the special optimality according to the present invention-additional process steps, a similar procedure has been known for the technical materials: materials and described in the United States has been exhibited in the processing stretch stack, Among them, stretch materials are described in No. 67.897 (Weibai) to mention; Fang; the sequence is described on the soil, this program passes the starting material feed to MUM. Page 30 V. Description of the invention (26 ) The net's mechanical position is very small, so the net is therefore roughly systematic, in which the complements of each other can be used in the shape of corrugated rollers, and the specific implementation is centered, such as the groove in the circumferential direction to the depth, or to the edge more It may be advantageous to have excessively strong use of the plastic deformation followed by further heating the mesh with the easy plastic deformation for hot-melt-containing external heat treatment. It is also known that better intermittent punching is used to stretch the mesh. Fiber especially connected open management Peripheral ridges and grooves are permanently deformed. Tolerances therebetween The unstretched mesh system is guided through an incremental three-dimensional surface of the mesh in the direction of the applicator to overlap or "combine" to the extent At least the strain of the ridges and grooves in the circumference and the axial direction can be included. The method can include areas with different patterns x white uniform and / or the width of the ridges on the roller's axis 6 L can be installed in one axis, 4 such as the Ministry At least one roller is at least one roll round, and the protagonist has a giant curved shape, and there is a change. If the soil is more than two pleated rollers in the central part, such as the treatment. To avoid in one step after the above A separate process step of the forming process 'or a stress-relief device (such as one or two pleating rolls) is heated, and another strengthening process is achieved by a process step of the net.' Preferable materials (such as materials containing thermoplastic fibers) ) Net, this good effect is: these nets can be formed and subject to mechanical procedures to achieve the required elasticity and / or strength by thermal curing. Although the program uses cylindrical pleated rollers, it can also be used To implement the invention, in which the bite flat Incrementally-dimensional network addition, the polymerization can also use more open foam, the discharge chamber of the cell hydrophilic, flexible polymeric foam structure.

The above-mentioned decorative member exhibits an absorptive desorption property of a specially-received storage member or material, which must be combined with the absorption. Therefore, the storage absorption suitable for the present invention is measured for the ability of the present invention to exhibit high capillary energy absorption. High absorption energy (h. Uptake of fluid at a specific capillary height), which often occurs when the component is located at a &quot; absorption = hsucti〇n capacity), the quantity test (also known as the cap adsorption test) measures =. = Fine adsorption absorption energy set When changing the height, each gram of absorbent is placed in the capillary adsorption volume, and the capillary adsorption absorption energy test details are taken in the test flow-type. The present invention is suitable for the following test paragraphs. It has at least about 15 tantalum per gram (CSAC), preferably at least about 18 g / g, more preferably at least about 20 g / g, more preferably g / g. These viable absorbing members are generally at a height of 35 cm, '', from gram to 60 g / g-capillary adsorption absorb energy, more usually about 8 g / g to 55 g / g, more often about 20 g / g to 50 g / g. In another form, the energy storage absorbing member that absorbs energy to the capillary has a CSAC of at least about 8 g / g at a height of 50 cm, preferably at least about 11 g / g, more preferably at least about 15 g / g, more preferably at least About 19 g / g. Generally speaking, these storage and absorbent members are usually 8 g / g to 40 g / g (CSAC, more usually about 11 g / g to 35 g / g, more often about is g / g to 50 g) at a height of 50 cm. 30 g / g. In another form, the high-capillary energy storage absorbing member has a C SAC of at least about 6 g / g at 80 cm height, preferably at least about 9 g / g, more preferably

40129; Description of the invention (28) at least about 12 g / g, more preferably at least about 15 g / g. Generally speaking, these storage and absorption members often have a capillary adsorption energy absorption of 6 g / g to 35 g / g at a height of 80 cm, more usually about 9 g / g to 30 g / g, and more often about 12 g / g In one form, the wicking capillary energy storage and absorption member has a CSAC of at least about 5 g / g at the height of cm, preferably at least about 7 g / g, more preferably about 10 g / g less, and more preferably at least about 14 g / Gram. Generally speaking, these storage and absorbent members often have a capillary adsorption energy absorption of 5 g / g to 30 g / g at a height of 1000 cm, more usually about 7 g / g to 25 g / g, and more often about 1 0 g to 20 g / g. (Although the above-mentioned minimum capillary energy absorption is important for the storage and absorbing member of the present invention, these members are also preferred, but not necessarily at least about one of 15 g / g at zero pressure (that is, 0 cm in the lid adsorption test). Capillary adsorption absorbs energy. In another preferred form, the storage absorbent member will simultaneously exhibit the required (g / g) uptake in at least two of the above suction heights, that is, for example, the preferred storage absorbent member will have two items. Or more of the following properties: (i) capillary absorption energy (CSAC) of at least about 10 g / g at a height of 35 cm, preferably at least about 13 g / g, more preferably at least about 20 g / g, More preferably at least about 22 g / f; (ii) at least about 8 g / g CSAC at 50 cm height, preferably at least about 11 g / g, more preferably at least about 5 g / g, more preferably at least about 1 9 grams / gram; (i ii) at least about 6 grams / gram of CSAC at 80 cm height, preferably at least about 9 grams / gram, more preferably at least about 12 grams / gram, more preferably at least about 15 grams / ^; (iv) a CSAC of at least about 5 g / g at a height of 100 cm, preferably at least about 7 g / g, more preferably at least about 10 g / g, more At least about 14 g / g.

_ I side 401292 Description of the invention (29)

Describing that the present invention is suitable for storage, absorption, absorption, and absorption, the absorbent member needs to have a high intermediate capillary annoyance ... The material's intermediate suction drag force means that the material has 50% capillary absorption ^ t ,,, 4 ^ ^ 50, ^ Λ. ^ F ^ The preferred storage and absorption structure suitable for the present invention ^ The absorption member has at least about 15 grams at the same degree as the 0 cm auto-produced eyes and the ancient member is a hair-capillary energy-absorbing storage energetic flea recognition knife. Capillary suction ^ ί * 35 Ϊ / V, ^ 20 ^ ^ ^ ^ 5 ^ ^ CSAH 5 Π has at least 3 5 cm middle capillary absorption height paste 45 cm less, more preferably at least 60 cm, best At least 4 pieces of orange

-S-A_6lS_S_S The usable storage and absorbing member preferably contains a high surface area material, the material entanglement material itself, or together with other elements such as a hydrogel forming absorbent: it provides high capillary adsorption and absorption energy to the member, as described above, to ^ On the one hand, it is profitable (Λ Μ ,,,, and surface area materials that describe its capillary adsorption energy absorption pots, $ Butan 3 hydrogel forming polymer or optional materials such as adhesives, actual storage absorbent members, Binding agent, etc.). Gao Zhizhen dare to know that it can have a very high suction height (such as 100 cm or more). · Ϋ = two, ^ can provide high surface area materials to provide one or two of the following functions and) 4. For other ° and products Such as the capillary channel of permeable absorbent, the area comes from the ancient history. Therefore, although the unit weight or volume of the table, ^, L ^ area materials, the applicant here uses another capillary adsorption absorption

Page 34 4012. V. Description of the invention (30) Energy is used to describe high surface area materials, because it provides the required absorption for the components of the invention: the amount of energy absorption is general-performance parameters. It can be known that the specific height; the modified absorbent article itself does not show a particularly high height at all heights: = material such as glass: microfibers are at extremely high heights (such as! 00 cm or, when the field absorbs and absorbs this amount 'special') These materials can be formed on the basis of hydrocondensation; even if the gan is provided at a very high level, the capillary channels required for the liquid are provided to provide any absorption of the compound or other absorbent with sufficient capillary adsorption energy. Attached energy absorption. In the absorbing member, therefore, high surface area materials can be used in the permeable absorbent of the present invention or any other constituent finger itself (measured without the measurement) to show one or more of the following selective materials. Capillary adsorption of at least about 2 g / g at about 3 g / g, more preferably at least about 4 g / g, more preferably ^ &quot; gram, (11) Capillary of at least about 5 g / g at 35 cm dimension = absorbed energy , Preferably at least about 8 g / g, more preferably at least about 12 g / g; (I) a capillary adsorption absorption energy of at least about 4 g / g at a height of 50 cm, preferably at least about 7 g / g, more Preferably at least about 9 grams / gram; (丨 v) at 丨 4 cm Less than about 1.7 g / g of capillary absorption energy, preferably at least about 2 g / g, more preferably at least about 3 g / g, more preferably at least about 5 g / g; or (v) at least at a height of 200 cm Capillary absorption energy of about 丨 g / g, preferably to about 2 g / g, more preferably at least about 3 g / g, more preferably at least about 5 g / g. In the embodiment, the high surface area material is fibrous ( Hereinafter referred to as &quot; high surface area fibers &quot; to provide a fibrous web or fibrous base when combined with other absorbents such as hydrogel forming absorbent mouthers or other permeable absorbents

Page 35 4 01292 V. Fenming's explanation (31) style. In another particularly preferred embodiment, the high surface area material will be an open cell, hydrophilic polymer foam (hereinafter referred to as "high surface area polymer foam" or more commonly known as "polymer foam"), These materials are detailed below. Surface area #d The high surface area fibers usable in the present invention include naturally occurring (modified or unmodified) and man-made fibers. The high surface area fibers have a surface area that is much larger than those commonly used in absorbent articles such as wood pulp fibers. The high surface area fibers in the present invention are ideally hydrophilic, and "hydrophilicity" here means fibers or fiber surfaces that can be wetted by liquid liquid deposited on these fibers (such as liquid body fluids). The contact angle and surface tension of related liquids and solids are detailed in the journal of the American Chemical Society named "contact angle, wettability" edited by Robert F. Good (1964 copyright), it is reported that-fiber or-a Wet by liquid (such as hydrophilic), in which the contact angle between the liquid disk fibers is less than 90 degrees, Spread = two-dimensional surface, in general, the two states have a total ease of greater than 90 degrees and the liquid If it is not naturally spread on the surface of the right contact angle, it is considered to be water repellent. Here, one fiber can be used or inherent, or these fibers can be repellent to iron. It can be known to the fiber to provide hydrophilic treatment for natural water repellent fibers to become hydrophilic. The high surface area fiber machine that is already available here has a ^ material method. The capillary suction in the surrounding area has a special surface area 'two-row polymer foam with the same known BET surface area.' But the characteristics of two surface area fibers are generally available here South of the surface area is mixed 6 ”The glass continuity domain supplied by Fiber Company (Kofan, Oregon, glass microfibers, such as Evanelite), available here. Page 36 40 JADs-V. Description of the Invention (32) Glass microfibers often have a weave dimension of no more than about 0.8 microns, more often from about 0.1 micrometers to about 0.7 micrometers. These microfibers have a surface area of at least about 2 square meters per gram. At least about 3 square meters per gram. Generally speaking, glass microfibers. The surface area of the dimension is about 2 square meters per gram to 5 square meters per gram. The representative glass microfibers available here are from Evana Fiber Corporation's Type 104 Glass Fiber With a nominal fiber diameter of 0.5 micrometers, these glass microfibers have a calculated surface area of about 3.1 square meters per gram. Another type of high surface area fiber that can be used here is fibrillar cellulose acetate fibers, which are quasi-fibers (Referred to as fibrets) have a high surface area relative to fibers commonly used in absorbent article technology derived from cellulose, these fibrils have extremely (j small diameter area 'so its particle size width is often about 0.5 To 5 micrometers, these fibrils often have a cumulative surface area of about 20 square meters per gram. Representative high-surface-area fibrils that can be used here can be purchased from Hercules Corporation (Charlotte, North Carolina) Special) cellulose acetate Fibre®. For a detailed description of fibrils and their physical properties and preparation methods, please see, "Cellulose acetate fibrils: a high surface area fibrillated pulp", JE Smith, Tappi Journal,卩 Dec. 237, 988; and U.S. Patent No. 5,486,4 1 (), issued January 23, 1996 (Groger et al.); Each disclosure is incorporated herein by reference. In addition to these fibers, those skilled in the art understand that other fibers well known in the absorption technology can be modified to provide high surface area fibers for use herein. Repairable: A representative fiber system with the high surface area required by the present invention is disclosed in US Patent 5 No. 59,335 (see columns 21-24 in particular). Regardless of the high-surface-area weaving material used, such as permeable absorbent systems, it can be a combination of 2 fibers and other absorbent materials. 刖 Separated materials, here &quot; separated &quot;

Page 37 ______ V. Description of the Invention (33) means that high-surface-area fibers and other absorbents are each formed before they are combined to form a storage absorbent member. In other words, high surface area fibers are not formed after being mixed with other absorbents (such as hydrogel-forming absorbent polymers), and other absorbents are not formed after being combined with high surface area fibers. Has the required morphology and the required surface area. High-surface-area polymer foams Some of the high-surface-area polymer foams available here are described in terms of physical properties. In order to measure some of these properties, sheet-type foams must be analyzed. Therefore, as long as For the preparation of pre-formed tablets, physical properties of the sheet-like foam (that is, prior to the formation of particles) are measured. The foam-formed cotton forms particles (or * beads) on the spot during polymerization. A chemical composition similar to foam C, This measurement of cell size, μ Rong. To size W.0 ratio, etc.) can be formed into a sheet shape to produce the high capillary storage storage absorption of the present invention is familiar to you in the art, and is especially made by polymerizing oil emulsions. For example, the preferred foam is water-soluble from the internal phase of a layer of U.S. Patent No. 5, 6 50, 22 No. 2 &quot; in U.S. Patent No. 5, 387, 20 No. 7 and in the same review March 1 998 ~ date &amp; He, do n’t better polymer foam is detailed in the cotton material &quot; (P &amp; G case number ~ the beauty of Marie et al. Applied for the name &quot; high-absorption polymer foam investigation in 1998 1998 3 Application-No. and joint trial ^ ~ "Case No. mt Ϊ Γ is mentioned in the article by way of article 7. In the patent, please request: The particularly preferred foam described in the application (one or two of the polymer foams available at Panjia A is described in the following example paragraph t). This open cell represents foam Absorbing material of each cell &quot; (P & G case number application name &quot; cover for distributing liquid liquid <Reveal IV Tan n ---) I prevent 丄 丄 各 No. 401292 V. Description of the invention (34) The cell system and the adjacent cell are not obstructed; ^ ~ S hinder the connection, which is more like an open cell foam knot = cell hole or "window", and can make the liquid easy! : The -cell in the structure is transferred to another-cell. There are Ϊ; L was! The foam structure of the Ϊ cell has the -mesh feature, in which there are grid cells formed by a flat two-blade support net. The cotton materials that constitute these branches can be called &quot; stents. &Quot; In the application of the present invention, an optimal foam is minimal: the structure has at least about 80% cells, and the cells are at least 1 microt: It is in liquid communication with at least one adjacent cell .. Makes 5 :: 二: cotton is not only open cell, but also hydrophilic enough to polymerize ^ β @ liquid liquid, the inner surface of the foam structure Hydrophilicity is imparted by the hydrophilic surfactant remaining in the foam structure, or by post-polymerization selected as described below, and the cotton treatment procedure. # 二 ZSI 'Cotton-coated' hydrophilicity can be linked to an absorbable test liquid phase. In order to quantify the tension value, you can use a sample of known size and surface area to measure the weight of a test liquid such as synthetic urine, and determine the adhesion tension of these foams experimentally. This is too inventive The test method of Ermeimei Patent No. 5, 3, 87, 207. The foam of the material with a surface area in the south of \ eight &quot; _ is one that exhibits a value of about 15 to 65 5 dyne / tension, preferably about 20 to 65 dyne / cm. Capillary absorption of synthetic urine is determined. 、、 包 二 ί: Use: The polymer foam is preferably polymerized in a collapsed (ie unexpanded) type, while: Π cotton 2: the absorption amount reduces the combined capillary pressure plus the limited pressure and is lower than the expansion pressure of the foam (Described below), when you touch the liquid

Page 39 401292 V. Description of the invention (35) This liquid is collected and swelled. These collapsible polymer foams are usually obtained by compressing the water phase from the polymerized HI PE foam with compression force, and / or by heat drying and / Or vacuum dehydration. After compression and / or thermal drying / vacuum dehydration, these polymeric foams are in a collapsed or unexpanded state. d One representative collapse of compressed water. The structure of the cell of IPE foam is shown in the photomicrographs of Figures 3 and 4 of the aforementioned US Patent No. 5,65 0,222. As shown, the cell of foam The structure is distorted, especially as shown in Figures i and 2_ of the 222. patent. Inflated foam structure when compared. For example, as shown in Figures 3 and 4 of the No. 222 patent, the voids or holes (dark areas) in the collapsed foam structure have been (please note that the foam described in the '222 patent has a sheet shape; as described below' here ^ shenchang : = j foam '-in the preferred embodiment, the foam is granular). The available two-layer cotton and related foam preparations are described in Example 2 to April. ▲ The product of J. Foam is detailed in the joint review. 1 98 3 3 __ 日 T · A · Di Marie laugh The U.S. patent application filed by V »u y 8 years 3 case No. 1): ..... No. 2 suction and wide examination of the second cotton material &quot; (p & In the same trial, the American patent for 3 materials received in 1998 (P & G case number ―): the suction indication used to distribute liquid liquid is incorporated by reference in this article. J Shen 222, each of which When the liquid liquid is wet and dry, U: = water: after, collapse! The polymer foam can be: this collapsed or unexpanded state is equivalent for a period of time ;; This collapse / fuma 4 can reach at least about 1 due to the ability of capillary forces, especially the unexpanded state of the bubble, it is believed that the capillary pressure developed within the structure, the liquid caused by the meniscus curvature of this month (36) ' &quot; Absorptivity &quot;, after the difference is scientifically implemented, this includes the hydration-free water associated with moisture absorption. The residual water is wicked onto the structure of the foam and stored in a capillary tube. 72 ° F (22 ° C) and • Often about 4 to 40% of the weight of the foam, about 5 to 30% of the weight of the foam. The "force" refers to the narrow limit of the middle hole of the foam: surgery; pressure between the faces Poor [see Kuteji? V〇1 · 7 5 1 985 &gt; 〇, R π 0 under compression and / or execution Cotton has residual moisture, including VA; dihydrated salt; and foam absorbs (with the help of hydrated salt) in the foam. The crumble pressure generated by the letter 'the residual water content of the collapsed polymeric foam of the present invention, Better: Λ less than about 4%, residual water content. Better collapsible polymer foam. One of the main parameters of these foams is that the higher Tg foam between the polymer glassy and rubbery may be strong but It is also stored for a long time and subject to polymer Tg. Special foam often takes a long time to recover from expansion-especially strength and elasticity-often required to achieve these required properties. Its glass transition temperature, Tg represents the midpoint of the transition, has a specific ratio The use temperature is hard and easy to break. When the colder liquid liquid in the collapsed state is wet, the rising state, the mechanical properties of the required group are very discerning early bodies. The type and degree are the same as those available for the present invention. As long as the foam has the accessible strength at the use temperature, the Tg should be as low as possible. Therefore, choose as many monomers as possible to provide lower homopolymers. It is known that the chain length of alkyl groups on methacrylate comonomers and acrylates can be longer than predicted by homologous homopolymer series, especially the homologous series of fluorinated acrylic acrylates or fluorenyl acrylate homopolymers Has a minimum τ g of one of the bond lengths of 8 carbon atoms. In contrast, the copolymers of the present invention

Page 41 __ 一 _ V. Explanation of the invention (37) The minimum T g occurs at a chain length of about 12 carbon atoms (although polystyrene monomers substituted by alkyl groups can be used instead of alkyl acrylates) And fluorinated acrylic acid, there are currently only very limited possibilities). The shape of the glass transition region of the polymer is also important, i.e. it is wide or narrow as a function of temperature. When the temperature of the polymer (usually ambient temperature or body temperature) is Tg or close to Tg, the shape of the glass transition region is particularly important. For example, a wider transition region can represent an incomplete transition in the use temperature. Generally, s' If used Incomplete temperature change ', the polymer will show greater rigidity and less elasticity. Conversely, if there is a complete change in the use temperature, the polymer will exhibit faster self-compression when wet by the liquid liquid. Need to control

Tg and the amplitude of the polymer transition region to achieve the desired mechanical properties. Generally speaking, the Tg of the polymer is preferably at least about than the width of the area of use and the Tg can be obtained from a moving green mp \ 11 u degrees lower to transform the tangent line VS. temperature curve, such as the United States dynamic ad hoc analysis ^ A) Measurement of loss method as described in paragraph). The test compound in Wu Guo Patent No. 5'65〇, 222, the amount of high surface area available here is used to describe the amount of high surface area material (hereinafter referred to as CSSSA). Cotton can also be specific for its capillary suction | Per unit mass of Bulk Foam Murata [Generally speaking 'CSSSA measurement: material plus solid residual material) of a specific foam (polymer structure material volume. Capillary suction specific surface area depends on 3 ^ weekly test liquid The density of the surface compound can be taken, so it is a feature of measuring the cell to the cell size and the total solid surface amount of 5 and the absorption range provided by the foam network to a surface to catch the cotton, even if the foam is The dark mode. In order to get here # plate type is used to store the suction component ^

CSSSA was measured for a foam sheet. The CSSSA of f cotton is especially concerned with whether the foam provides the required capillary suction to store the absorbing member. $ is because the m ^ developed in the foam structure is proportional to the specific surface area. In addition, CSSSA has Develop sufficient capillary pressure to keep it collapsing 3 == the liquid is wet. Assuming other factors such as foam density, this means that as tcsssA increases (or decreases), the capillary pressure within the foam ... increases (or decreases) proportionally. For the purposes of this invention, CSSSA depends on measurement i ::: amount :? The low surface tension liquid (such as ethanol) that occurs in the sample (~ Yu Gai 'is used to determine the specific surface area of the foam. This procedure is described in detail; 2Γ, 38 7, 2. 7 in the test method paragraph to provide In the text and methods, any other reasonable method can also be used to determine the csssa. The collapsed polymeric foam that can be used as an absorbent in the Ming has at least about 3 square meters per gram of CSSSA. CSSSA is generally about 3 to 30. About 4 to 17 square meters per gram, the best about ... heart dagger. Foam with this CSSSA value (with a density of about 10,000 to 0.0033 g / litre inflated state)-like for urine Such liquid liquids have a particularly well-balanced absorption capacity, liquid retention, and liquid capillary or distribution characteristics. In addition, the foam with this CSSSA can develop enough capillary pressure cotton to remain collapsed and unexpanded until wet by the liquid. vj The above 'For the particularly preferred collapsible polymer foam, in its collapse, the capillary pressure developed in the foam structure is at least equal to the force exerted by the elastic compression polymer modulus, in other words, the collapsed foam is maintained

P.43 401292 Description of the Five 'Invention (39) The required capillary pressure &amp; resistance force can be determined by the trend applied when the compressed polymer foam tries to &quot; rebound &quot;, in which swelling: stress and strain experiments evaluate the polymer foam The elastic recovery of the cotton is then maintained, and the Ϊ cotton system is compressed to about 1/6 (17%) of the original expanded thickness. For the purpose of the present invention, a relaxation stress value is measured. In addition, the volume of polymer foam is Γ, which is measured in contact with liquid liquids such as water in the collapsed state. It is called "Estimated Relaxation Stress Value", and the expansion pressure is about 1,000 under the other stress value. ; The collapsing and swelling polymer foam of the present invention is used to evaluate the factory's kPa of foam), and is usually about 7 to 40 kPa. The procedures of the whole force of No. 5, 387, 207 are detailed in the United States. The patent (Xinzhou test method paragraph.) Another important property of the freely absorbable energy and the area of polymer foam that can be used in the present invention is that for each sample in the sample, you voluntarily: and collect energy (&quot; fac &quot;) &quot; is a known total amount of foam test liquid (synthesis of solid urine placed in its cell structure is effective, polymer foam is required to be specially synthesized in the storage and absorption member of the present invention. The range of free energy absorption to 1◦.m ** is from 75 to liters, which is determined in the paragraph of the test method of foam. Tian Shi was described in US Patent No. 5,650,2,22 when exposed to liquid liquid.轫 Dushan swells, the ratio of polymer foam in the expanded state: the foam absorbs liquid Liquid, the "V" of these foams: the thickness of the foam is at least about collapsed ηχ, that is, the swelling state of the cotton is preferably about 4 times the thickness of the medium W, and the swelling factor, more preferably about 5X To 10 ×. For the purpose of the present invention, the relationship between the expansion depth and collapse thickness of a compressible dewatering foam page 44 Description of the invention (40) The relationship between the degrees can be experimentally predicted from the following equation: f heart tension) = thickness (帛Collapse) x ((〇. 133x ^ 0 ratio) +/- 2) i sound J 5, rose) is the thickness of the foam in the expanded state (Peng Yu) is the thickness of the foam in the collapsed state; There is a water-to-oil ratio of the HIPE constituting the foam. Therefore, it is made of an emulsion with a ratio of η and iiV of 80. A typical polymer foam has procedures such as / then weight and / then factors such as .. Test method The sequence in the paragraph is described as follows in US Patent No. 5,650,222: Γ: Packing :: JI: The surface area of polymer foam-The relevant mechanical characteristic is the strength of '^, which is determined by the resistance to compression deflection (RTCD ) Decided that the performance of the RT CD system is the polymer modulus and the foam network structure and density ^ f number. The polymer modulus depends on: a) polymer B) Foam heat = mouthing conditions (for example, the integrity of the polymerization obtained, especially for cross-linking), and c) the degree to which the residual material plasticizes the polymer, such as remaining in the foam after treatment Emulsifier in cotton. In order to effectively serve as a high surface area part of the absorbing member of the present invention, the polymer foam f is suitable for resisting deformation or compression caused by stress during use, and the foam with insufficient strength in terms of RTCD can provide the required under no load conditions. Capillary energy is absorbed but will not be provided under compressive stress caused by the user's movements and actions of absorbent articles containing foam. The amount of R T C D exhibited by the polymer foams available in the present invention can be determined by the amount of strain produced in a saturated foam sample that is held for a certain period of time at a specific temperature and a specific limiting pressure. The method of performing this specific test is described below.

^ ΓΗ9Π9 _____ Fifth invention description (41) '-described in the test method paragraph in US Patent No. 5,6 5 0, 2 2 2, the foam available here will preferably represent an RT CD' so that has been affected by 65 When (+/-) 5 dyne / cm surface tension of synthetic urine saturates to its free absorption energy, the limiting pressure of 5 1 kPa produces a strain that is usually about 90% or less of the compression of the foam structure. The strain generated under these conditions is preferably in the range of about 1 to 90%, more preferably about 1 to 25%, more preferably about 2 to 10%, and even more preferably about 2 to 5%. The high surface area polymer foam available here can also be described by its vertical hanging adsorption height (hereinafter referred to as VHSH'Vertical hang sorption height). The X% VHSH height is the xcm 0% energy (or Fac) left in the foam. ), A typical VHSH with a significant value of 90%, but X can be any value in principle. According to the inventor's experience, the most easily repeated VHSH measurement is reached at χ = 90%. Those skilled in the art understand that this single-point value does not fully express the curve shape obtained from the energy vs. height map, but this single point serves as an actual comparison point for one of the available foams here, so foam often has at least about The balance of 20-cm is 90% VHSH, preferably at least about 40 cm, more preferably at least about 60 cm, more preferably at least about 70 cm, and more preferably at least about 80 cm. In general, the preferred polymeric foam often has a VHSH of at least about 20 to 90 cm, more usually about 60 to 90 cm, more usually about 70 to 90 cm, and more usually about 80 to 90 cm. The method used to measure 90% V HSH is detailed in the following test method paragraphs, such as the following 'When the South Surface Area Polymer Foam is combined with other absorbents such as permeable absorbents, it is granular' but in the sheet type Corresponds to 90% VHSH measured on the foam (ie before pellets are formed) ^ Although foam forms pellets (or beads) during the polymerization process, a similar foam can also form a sheet to evaluate 90% of the foam VHSH. °

P.46 401 ^ 398 V. Description of the invention (42) Foam cells, especially those that contain relatively few monomers. One of the water phase droplets, which contains the monomer oil phase, is generally a spherical type. The dimensions or &quot; diameters &quot; of these spherical cells are commonly used parameters to describe the characteristics of general foam, because * ^ It is not known that the cells in the polymer foam samples are about the same size, so an average cell is often specified. Cell size, which is the average cell diameter. Z uses several techniques to determine the average cell size of the foam, but the most common technique for determining cell size in foam is related to scanning electron micrographs of a foam sample—a simple measurement. The cell-to-dimension measurement here is based on the flat cell size of several foams in the expanded state, as shown in Figure 1 of US Patent No. 5,650, 222. According to this Γ) foam available for the test month Several average cell sizes of about 80 microns or less are preferred, often about 5 to 50 microns. Here, the "foam density" is specified on a dry basis (that is, the volume of foam in cotton per cubic centimeter of air), and the absorbed water-soluble residual strands are firstly treated and / or hydrophilized in the foam. Residual salts and liquids are expressed as a percentage of foam density. However, the density of foam includes retention materials, such as emulsifiers that appear in polymer foams. The netting residues: may actually increase the foam material significantly: determine the proper weight measurement procedures for solid foams of each single volume foam structure. To measure the density of foam, such as the second quality: US Patent No. 5,387,207 issued by Ren Furi (Dell Ben ^ The weight measurement procedure detailed in the method = method section *. The polymer foam that can be used in the present invention is Collapsed dry basis density values in the range of 2 / cm3 (excluding any residual salt or

i01292 ____----- V. Description of the Invention (43) Water), preferably about 0.1 1 to 0.19 g / cm3, most preferably about 0.12 to 0. u g / cm3 "this The available polymer foam in the expanded state has a dry basis density value of about 0.01 to 0.033 g / cm3, preferably about 0.013 to 0.03 g / cm3. Vertical wicking-that is, the generation of liquid wicking in the opposite direction of gravity-is one of the required performance attributes of the polymer foams available here. For the purposes of the present invention, the vertical wicking reflects the material's permeability, This reflects the material's ability to send liquid to other absorbents such as hydrogel-forming absorbing polymers or other permeable absorbents. The vertical capillary rate depends on the time taken to measure the vertical distance of a 5 cm vertical distance of a test foam sliver drawn by a colored (eg synthetic) urine capillary in a storage tank. The vertical capillary procedure is detailed in US Patent 5,387, In the test method paragraph No. 2 07, but at 31 degrees (: instead of 37 degrees C). In order to be particularly used in the absorbent member to absorb urine, the foam available here is preferably not more than about 15 The synthetic urine capillary is sucked to a height of 5 cm (6 5 + 5 dyne / cm) within a minute. The better foam absorbent of the present invention is better. The synthetic urine capillary is sucked to a height of 5 cm within about 10 minutes. The vertical capillary absorption energy test measures the same standard size foam sample of the sample used in the vertical capillary test. The amount of liquid measured in $ grams of absorbent foam per inch (2.54 cm) in the vertical section was measured. Inhalation test (after the liquid is equilibrated and after (for example, after about 18 hours), this decision will be made. As with the vertical capillary test, the vertical capillary absorbed energy test is detailed in 丨 99 February 5 ^ Issue ^ US patent 5, 38 7, 20 7 (Dell People) test methods are different. High height and high vertical capillary energy absorption is theoretically equal to high five. Description of the invention (44)-Applicable Ϊ: ί, with energy absorption, because the foam sheet available here Model using the above test data for 2 Shire test is easier and cheaper to perform, so it is recommended. Horses show this important parameter characteristic of the foam of the present invention, although the high capillary absorption 嫂 hydrogel forming absorption polymer = inhalation material For example, the permeable absorbent (such as the polyfluorene and hexamethylene in the embodiment) can be in the form of flakes when the phase group σ is formed. A particularly preferred granule is provided to provide a shape of granules and a mixture of hydrogel-forming polymers. : Mention :; bag: although f can be made into a moon shape, it can be handled. As above, + 2 cotton particles, foam particles and then mixed with hydrogel polymerization profit 5,387 207 _, i 可The foam and its preparation procedures are detailed in the United States (March, 2003, US Patent No. 5,65,222, Joint Examination 1998) "⑽; No. &quot; High-absorption polymer foam material 0-夂 United States Patent application No. 2 and co-examination 1998 # &amp; A. Dimarry et al. US Patent Application No. 2 of Liquid Liquid Liquid = Case No.), the principle of body root can be used to form a piece of foam, and then the foam can be mechanically processed with tΪ particles (such as crushing, cutting, material, etc.) to prepare the foam. In addition, foam beads can be prepared directly from polymerized microbead emulsion. US Patent No. 5 653 9 22 issued to Li et al. On August 5, 1997 and issued to Li et al. On December 10, 1996 U.S. Patent No. 5,83,162, each of which is incorporated herein by reference, and specific examples of making polymer foam / hydrogel-forming polymer mixtures are described in detail below. Applicants also know The high surface area foam can optionally contain a fluid to increase the transfer of fluid to other absorbents or permeable absorbents that store the absorbent member

Page 49 401222 V. Description of the invention (45) The pre-wet stream part is filled with polymer foam. Under certain theoretical conditions, the foam uptake rate is increased. People who are unintentionally restricted by polymer foam should ideally be stable on the shelf. Pre-wetting fluids can prevent microbial growth and prevent evaporative water loss. $ 'Water activity is low to the outside'. Water can be used as a Moisturizing the flow to provide absorption = $ Time to remove the foam cannot meet other needs. Can't, but may itself be a hydrogel-forming absorbent article. The storage and absorbing member of the present invention preferably further contains at least a polymer (also referred to as a hydrogel-forming polymer). Including a variety of water-insoluble, but available with water hydration can absorb a large amount of liquid hydration, these hydrogels formed polymerized polymers, and any material can be used in the present invention. Craftsmanship. π 乇 Fine suction absorbent hydrogel forming and absorbing polymer materials are also often referred to as &quot; hydrocolloids &quot; or &quot; superabsorbent materials &quot; and can include / encompass multiple enzymes-such as Μ 曱 基 殿 粉Carbonyl cellulose and hydroxypropyl cellulose; non-ionization type such as polyvinyl alcohol and polyvinyl ether; cationic type such as polyvinylpyridine, polyethylene m 〇rph ο 1 ini ο ne, and Ν, Ν-dimethy 1 ami η etheth 1 or N, N-dimethylaminopropyl acrylate and fluorenyl acrylate and each of the quaternary salts. In general, the hydrogel-forming absorbent polymer usable in the present invention has Multiple anionic functional groups, such as acid-blocking and more often several groups. Examples of polymers suitable for use herein include those made from polymerizable, unsaturated, acid-containing monomers. Therefore, these monomers include lean smoke Unsaturated acids and anhydrides containing at least one carbon to carbon

Page 50 Cargo Qin Yue (46) Double connection. In detail, these monomers may be selected from the group consisting of: olefin unsaturated carboxylic acids and anhydrides, dilute unsaturated sulfonic acids, and mixtures thereof. As mentioned above, the properties of the hydrogel-forming absorbent polymer are not important to the members of the present invention, but the selection of the optimal polymeric material can enhance the performance characteristics of the member. The following disclosure describes the preferred properties of the absorbent polymers available here These properties should not be construed as limiting and merely indicate the evolution of absorbent polymer technology over the past few years. They may also include some non-acidic monomers—often in small amounts—to prepare hydrogel-shaped absorbent polymers. Acidic monomers can include, for example, water-soluble or water-dispersible esters of acid-containing monomers, and monomers containing few or no acid groups. Optional non-acidic monomers can therefore include monomers containing functional groups of the following types: carbonyl acids or sulfonates, hydroxide groups, amide-groups, amino gr0Up, Phosphonate groups, tetramethylammonium groups, aromatic hydroxyl groups (such as phenyl groups-such as those obtained from styrene monomer). These non-acidic monomers are known materials and are described in detail in, for example, US Patent No. 4,076,663 (Salmon et al.) Issued February 28, 1978 (Salmon et al.) And US issued December 13, 1977 Patent No. 4, 06 2, 8 17 (Weissmann), both of which are incorporated herein by reference. Dilute hydrocarbon unsaturated polyacids and polyacid monomers include acrylic acid and are represented by the following: acrylic acid itself, fluoracrylic acid, ethacrylic acid, α-chloroacrylic acid, a-fluoroacrylic acid, and dot-fluorene Acrylic acid (crotonic acid), α-phenylpropionic acid, dot-acrylOxypropianic acid, sorbic acid, α-gas sorbic acid, angelic acid (angeHc acid), cinnamic acid, p-gascinnamic acid , / 5-sterylacrylic acid, itaconic acid, citroconic acid, mesaconic acid, glutaconic acid, aconitic acid

Page 51 4 For example, such as (47) acid), maleic acid, fumaric acid, tricarboxyethylene and maleic acid anhydride ° Dilute hydrocarbon unsaturated acids aliphatic or aromatic ethyl acids such as ethylene sulfonic acid, allyl sulfonic acid, methylstyrene sulfonic acid, and styrene sulfonic acid; acrylic acid and methyl acrylic acid such as sulfoethyl acrylate ), Sulfoethyl methacrylate, sulfopropyl acrylate, sulfopropyl methacrylate, sulf0propyl (methacrylate), 2-hydroxy-3-methacry1oxypropy1 sulfonic acid and 2 -acrylamide-2-methylpropane sulfonic acid. The preferred hydrogel-forming absorbent polymers useful in the present invention include carbonyl groups. These polymers include hydrolyzed starch-acrylic acid graft copolymers, partially neutralized hydrolyzed powder-acrylic acid. Graft copolymer, starch-acrylic acid graft copolymer, partially neutralized starch-acrylic acid graft copolymer, saponified ethylene acetate-acrylic acid copolymer, hydrolyzed acrylic or acrylamide copolymer, any The above copolymers are slightly network-crosslinked polymers, partially neutralized polyacrylic acids, and partially neutralized polyacrylic acids are slightly network-crosslinked polymers. These polymers can be used alone or both or A mixture of one of the above different polymers. Examples of these polymer materials are disclosed in U.S. Patent No. 3,661,875, U.S. Patent No. 4,076,663, U.S. Patent No. 4,0093,776, U.S. Patent No. 4 No. 666, 983, and U.S. Patent No. 4,734, 478. The best polymer materials used to make hydrogel-forming absorbent polymers are

^ 1292 _____ 5. Description of the invention (48) Slightly neutralized polyacrylic acid and starch derivatives. Network cross-linked polymer. The hydrogel-forming absorbent polymer preferably contains about 50 to 95%, preferably about 50%. 75% neutral and slightly network-crosslinked polyacrylic acid (ie: poly (acrylate / sodium acrylate)). Network cross-linking makes polymers almost water-insoluble and partially determines the characteristics of the absorbed energy and extractable polymer content of hydrogel-forming absorbing polymers. For these polymers, the network cross-linking procedures and typical network cross-linking Binders are described in detail in U.S. Patent No. 4,076,66. Although the hydrogel-forming absorbent polymer is preferably homogeneous (ie, homogeneous), the present invention can also use a mixture of polymers. For example, the present invention can partially neutralize τ ^ polyacrylic acid slightly cross-linked polymer And starch-acrylic graft copolymers. The hydrogel-forming polymer component can also be in the form of a mixed-layer ion-exchange component, which includes a cation-exchange hydrogel-forming absorbent polymer and an anion-exchange hydrogel-forming absorbent. The polymer 'this mixed layer ion exchange composition. It is described in, for example, US Patent Application __..... (P & G Case No. 6975-named &quot; Composition of absorbent polymer with high adsorption energy under an applied pressure &quot;); U.S. Patent Application No. 2:: ........ (P & G case number 6976-named &quot; absorptive polymer composition with high adsorption energy and high fluid penetrability under an applied pressure &quot;); January 7, 1998, U.S. patent application filed by Ai Sulaifu and others (/ Please .....: No. 2 (P & G case no. 6977-named & "An absorbent polymer composition having high adsorption energy and improved integrity in a swelled state under an applied pressure,") each of which is incorporated herein in a way that is not known. The hydrogel forming useful in the present invention Absorption polymers can vary widely

Page 53 401252_______ V. Description of the invention (49). One of the sizes, shapes, and / or morphologies of these polymers may be in the form of particles (such as fine, powdery, intergranular, etc.) that do not have a ratio of six maximum sizes to the minimum size. Granular, cross-linked particles and the like) and can be fibrous, poly, film, foam, sheet and the like. Hydrogel-forming absorbent compounds may also contain a low level of a mixture of one or more additives, such as powdered silica, surfactants, glues, adhesives, and the like. The / part of this mixture may be a physical and / or chemical connection, and the connection form is not easy to be physically separated from the hydrogel-forming polymer and the non-hydrogel-forming polymer additive. Hydrogel-forming absorbent polymers can be non-porous (i.e., free of internal perforations) or can be internally perforated. For the above particles, the particle size is defined as the size determined by the sieve size analysis, so for example, a particle left by a US standard test sieve with a 710 micron hole (such as the No. 25 US series alternative sieve label) is considered to have A size greater than 7 10 microns; a particle that passes through a sieve with a 71 micron pore and remains on a 500 micron pore (such as the No. 35 US series alternative sieve designation) is considered to have an intermediary = 500 to 7 10 Particle size between micrometers; and a particle passing through a 500 micron sieve is considered to have a size of less than 500 micrometers. The mass intermediate particle size of a known sample of a hydrogel-forming absorbent polymer is defined as the particle size that divides the sample into half the mass, that is, half the weight of the sample will have a particle size less than one of the mass intermediate size, and half of the sample will have a mass greater than Intermediate size ^! One particle size. When the 50% mass value does not correspond to the size hole of the American standard test sieve, the standard particle size mapping method is used (where the probability weight of the particle sample remaining or passing through a known sieve hole is plotted on the paper vs. sieve size Pores) to determine the mass of the intermediate particle size, these determine the water gel

Page 54 401292_______ V. Description of the invention (50) The method for forming the size of the absorbing polymer particles is further inserted in US Patent No. 5, 〇61,25 No. 9 issued on 丨 99 丨 29 (Gaomen et al) , Incorporated herein by reference. For the hydrogel-shaped absorbent polymer particles useful in the present invention, the particles are approximately in the range of about 1 to 2000 microns, more preferably about 20 to 1,000 microns, and the mass intermediate particle size is about 20 to 1500 microns, more preferably About 50 to 1,000 microns, more preferably about 100 to 800 microns. Although the absorptive member of the present invention uses a hydrogel-forming absorptive polymer at a relatively southern concentration (such as 40%, 60% or more by weight), other properties of the absorptive polymer may also be relevant. In these embodiments, the material may One or more properties (&quot; US Patent No. 5,562,64 6 issued to Gaomen et al. On October 8, 1996 and US patent issued to Gaomen et al. On February 4, 1997 5,599,335 · In the description, each disclosure is not incorporated herein by reference. Basic hydrogel-forming absorbent polymers can be constructed in any conventional manner. Typical and preferred procedures for making these polymers are described on April 19, 1988. US Reissue Patent No. 32,649 (Brant et al.), US Patent No. 4,666,983 (May Camellia et al.) Issued on May 19, 1987, and US Patent issued on November 25, 1987 Nos. 4, 625, 001 (camellia and others) are incorporated herein by reference. The preferred method for forming the basic hydrogel-forming absorbent polymer is related to a liquid (a solution or other solution polymerization method, such as According to the above-mentioned U.S. Reissue Patent No. 3, 649, liquid Solution polymerization based on the use of a liquid reaction mixture to carry out polymerization, the liquid reaction mixture was then subjected to polymerization conditions sufficient to produce an almost water-insoluble slightly network crosslinked polymers in the mixture,

Page 55 4Qi222______ 5. Description of the invention (51) The mass of the polymer formed can then be crushed or crushed into individual particles. In detail, the liquid solution polymerization method for producing a hydrogel · shaped absorbent polymer includes preparing a liquid reaction mixture to be polymerized. One of the components of this reaction mixture is the acid group-containing monomer that constitutes the hydrogel-forming absorbent polymer. Π backbone &quot;. The reaction mixture contains approximately 100,000 parts by weight of the monomer. Another component of the liquid reaction mixture contains a network cross-linking agent, which is used to form the hydrogel-shaped absorbent polymer according to the present invention. The network cross-linking agent is described in detail in the aforementioned US Reissue Patent No. 3, 649, U.S. Patent No. 4,666,983 and U.S. Patent No. 4,625,001. The network cross-linking agent is generally in an amount of about 0.001 to 5 mol (%) based on the total moles of the monomers present in the liquid mixture (about 0.001 to 5 20 parts by weight) appeared in the liquid reaction mixture. One optional component of the liquid reaction component includes a free radical initiator, such as: peroxides such as sodium, ammonium persulfate, caprylyl peroxide, benzoyl peroxide, hydrogen peroxide, cumene hydroperoxides 'tertiary butyl diperphthalate' tertiary butyl perbenzoate , Sodium peracetate, sodium percarbonate and the like. Other optional components of the liquid reaction mixture include portions of a variety of non-acidic comonomers, including vinegars containing monomers with substantially unsaturated acidic functional groups or other comonomers that do not contain several or acidic functions. The liquid reaction mixture is subjected to polymerization conditions sufficient to produce in the mixture, and is a slightly network-crosslinked polymer that is not water-soluble but swells with the formation of a hydrogel. These polymerization conditions are also detailed in the above three patents. These polymerization conditions are generally related to heating (hot start technology) to a polymerization temperature of about 0 to 100 degrees C, more preferably about 5 to 40 degrees C ' Maintain polymerization of liquid reaction mixture

Page 56 ______ V. Description of the invention (52) The chemical state can also include, for example: subjecting the reaction mixture or part of it to any conventional form of polymerization activation radiation (p〇lymerizati〇ri activating irradiation), other known Polymerization technology is radiation, electron, ultraviolet or electromagnetic radiation. The acid functional groups of the hydrogel-forming absorbent polymer formed in the liquid reaction mixture are also preferably neutralized and can be neutralized by any conventional means, resulting in a percentage of at least about 25 moles, more preferably at least about 50 moles The percentage of total monomers used to form a polymer is an acid group-containing monomer neutralized by a salt-forming cation. Such salt-forming cations include, for example, alkali metals, ammonium, alternative ammonium, and amines, as described in detail in the aforementioned US Reissue Patent No. 32,649. Although it is better to use a liquid solution polymerization process to produce a granular version of the hydrocoagulation-forming absorbent polymer, a multi-phase (1111111: 丨 _ {^ 356) polymerization process technology can be used. "Polymerization process" such as conversion Emulsion polymerization (inverse emulsion polymerization) or inversion suspension polymerization (inverse suspension po 1 ymer i za ti on) procedures. In the process of inversion emulsion polymerization or inversion suspension polymerization, the above-mentioned liquid reaction mixture is suspended in the form of droplets in a water-inert organic solvent such as the matrix of cyclohexane, and the particles formed by hydrogel forming and absorbing polymers Almost spherical, the conversion suspension polymerization process is detailed in US Patent No. 4,340,706 issued on July 20, 1982 (Ichacha et al.), US Patent 4, issued on March 19, 1985, Nos. 506, 052 (Fisher et al.), And U.S. Patent No. 4,73 5, 987 (Morita et al.) Issued on April 5, 1988, are incorporated herein by reference.

401¾¾¾ ———— V. Description of the invention (53) The surface cross connection of the preformed polyether is to obtain a high-perforation hydrogel layer (&quot; PHL &quot;), pressure performance (&quot; PUP "), energy and salt A preferred procedure for a hydrogel-forming absorbent polymer with a flow conductivity (&quot; SFC ") value is within the scope of the present invention. Appropriate general methods are described in US Patent No. 4,541,871 (Ichacha et al.) Issued on September 17, 1985, PCT Application W092 / 1 6 565 (Stanley), published on October 1, 992, PCT Application W090 / 08 789 C announced on August 9, 1990, PCT Application W09 3/050 80 (Stanley) published on March 18, 1993, and Certificate issued on April 25, 989 US Patent No. 4,824,901 (Alexandria), US Patent No. 4,789,861 (Johnson) issued on January 17, 1989, US Patent No. 4,587,308, issued on May 6, 1986 No. (Shibata), US Patent No. 4,734, 478 (before camellia) issued on March 29, 1988, US issued on November 17, 1992 Lee 5, 164, 459 (Huang Cun et al.), German Patent Application No. 4, 0 20, 78 0 (Damen) published on August 29, 1991, and published on October 21, 1992 _ European Patent Application No. 5,009,708 (Ghana), all incorporated herein by reference. See also US Patent No. 5.562.646 issued on October 8, 1996 (High Gate et al.) And US Patent No. 5. 99.335 (High Gate issued on February 4, 1997) Etc.). The hydrogel-shaped absorbent polymer particles prepared according to the present invention are generally approximately dry. V. "Dry" "herein" approximately dry "refers to less than about 50%, preferably less than about 20%, more preferably about Particles with a particle weight of less than 10% are usually water or other solution content liquid particles. The hydrogel forming absorbent polymer particles generally have a liquid content of about 0.01% to 5% of the particle weight, and can be obtained by any conventional method such as heating.

P.58 When drying individual granules, dehydrate the solvent. Use these dry masses to shape the fine particles. In addition to the stagnation process such as methanol drying, it also becomes a hydraulic material. In addition, the combined rubber forming combination processed by the steaming hall, although the foam material is needed, the material flows from other materials, so even if the area material is described as a material, This is expected. The bulk storage absorption structure can be satisfied by the user's capillary combination, as it can be used when using a liquid self-reaction mixture containing a polymer-containing liquid, and then can minify the absorption polymer, such as a pure water-absorbing absorption member, which is less able to meet the absorption alone. The main function of the component (for example, the pressure caused by fluid acquisition / minimum movement can still be absorbed by the suction component. The reaction mixture can be used to form particles to remove water, the reaction mixture can also be _ state, or the polymer can be dehydrated. It is dry granules. Glue forming. Materials, or—purely good components are two or the demand but combined can be satisfied to absorb the body fluid directly discharged or cloth components), leaving these fluids. Ningsheng forming materials and high watch

C can significantly change the amount of hydrogel-forming absorbent polymer contained in the absorbent member ', and it is known that the member can have a changed hydrogel concentration, in other words, a member can have higher and lower hydrogel concentrations. region. When measuring the concentration of the hydrogel-forming absorbent polymer in a known region of the absorbent member, the weight of the hydrogel-forming polymer relative to the hydrogel-forming polymer and The weight percentage of the combined weight of other ingredients (such as fiber, polymeric foam, etc.). Therefore, the concentration of the hydrogel-forming absorbent polymer in a known region of the absorbent member of the present invention may be at least about 50%, at least about 6 0%, at least about 70%, or at least about

Page 59 γ4〇4 ^ 3- V. Description of the invention (55) '~ ---' 80% of the total weight of the absorbing member. Although the region of the absorbent member may contain a higher concentration of hydrogel-shaped absorbent polymer 'and the high surface area material is fibrous, the cumulative concentration of the absorbent polymer in the absorbent member (that is, the total weight of the hydrogel-shaped absorbent polymer) Divided by the total weight of the absorbent member multiplied by 100%) up to about 75% by weight, preferably about 70% by weight, and more preferably about 65% by weight. For these high surface area fiber-containing members' hydrogel-forming absorbent polymers, the concentration is about 0 to 7 weight, more usually about 15 to 70% by weight, and more usually about 20 to 65% by weight. In the embodiment where the south surface area material is a polymer foam, the absorbing member preferably contains at least about 1% by weight (accumulated on a cumulative basis), more preferably at least about 0% by weight, more preferably about 15% by weight, more preferably Polymer foam at least about 20% by weight. At the same time, 0% of the Δ storage absorbent members and the like contain a polymer foam material of about 1 to 98% by weight, more usually about 10, more about 15 to 85% by weight, and more usually about 20 to 80% by weight. As mentioned above, the total weight of the materials in the center is violated; already ;: The circumference is based on the smaller material amount of the absorbing member. It is known that the area of the absorbent member may contain larger or of course, the absorbent polymer and its relative extent depending on the hydrogel-shaped absorbent polymer, such as the build-up material, the high surface area material J (Y /, the specific high surface size used) Wait. Therefore, a high degree of water, granular foam, or particles made the absorptive member of the thin absorbent article flare open? Although the polymer provides suction, it must have a high surface area = the required degree of capillary. Use a higher capillary to absorb foam, but also use = to supply energy for this purpose. So though. On the other hand, although the polymer fibers are formed from a hydrogel with a lower capillary π, a slightly lower degree can also be used.

401292 V. Description of the invention (56) Hydrogel-forming polymer (, ^ cotton, total high surface area, and material level can also be based on the material weaving and polymer foaming of each area) The range between the polymer foam and the high surface area fiber depends on the relative concentration of each material. The properties of the hydroformed polymer in the receiving member

It is based on another example of integrity: in the absorbing member of A, the member is polymerized, and the mixture of cotton and capillary between the particles or fibers: sound: sexuality. When melting, it often consists of: structure: the intersection of the components, this: the thermoplastic material where the thermoplastic material is transferred to the material matrix is solidified to become the choice available here. Ke &amp;-t particles, fibers or particles and c : For any number of types, including the combination of two, which is a particularly preferred type, ^ = f-type fibers can form a number of non-significant damage and thermoplastic materials containing absorbent structures can be made from any thermoplastic material = The temperature of the thermoplastic polymer melting between 75 degrees (: and 175 degrees c is preferably not less than about 190 degrees C, preferably about not less than used in absorbent articles ... the melting point of plastic materials regardless of the degree, The melting point of thermoplastic materials, and the temperature at which the absorbing structure may be stored = plastic material 1 is not more than ^ 0 degrees C. Manufactured by the mouth, including: Polyfiber can be made from a variety of different thermoplastic polyolefins, polyesters, copolymers Esters, acetic acid, such as polyethylene (such as PULPED) and polypropylene, vinylidene diene polyethylene, alkenes, polyethyl vinyl acetate, polygas &quot; ene, polyamine, copolymer amine, poly Ethylene, polyurethane and any Copolymers such as gas, ethylene / vinyl acetate, and the like. A preferred thermoplastic bonding fiber is PLEXAFIL0 polyethylene microfiber (manufactured by DuPont), which is also available from about 20% and sold under the brand name KITTYHAWK® (manufactured by Wyeth). A blend of 80% cellulose fibers. Depending on the desired characteristics of the resulting thermally bonded absorbent member, suitable thermoplastic materials include hydrophilic water-repellent fibers, such as surfactant-treated or silica-treated thermoplastic fibers, such as Obtained from polyolefins, such as polyethylene or polypropylene, such as acrylic, polyamide, polystyrene, polyurethane, and the like. The surface of water-repellent thermoplastic fibers can be treated with a surfactant such as a nonionic or anionic surfactant. Hydrophilicity, such as spraying a surfactant on the fiber, immersing the fiber in a surfactant, or including thermoplastic surfactants as part of the polymer when producing thermoplastic fibers. When dissolved and resolidified, the surfactant is easy Remaining on the surface of thermoplastic fibers, suitable surfactants include non-ionic surfactants such as Midea, Wilmington, Delaware丨 Brij®76 'manufactured by CI Corporation and various surfactants sold under the Pegosperse® trademark by Glick Chemical Co., Greenwich, Connecticut. In addition to nonionic surfactants, anionic surfactants can also be used These surfactants can be applied to thermoplastic fibers, for example, at about 0.2 to 1 gram per square centimeter of thermoplastic fibers. Suitable thermoplastic fibers can be a single polymer (single-component fiber) or more than one or two polymers (such as two groups) Sub-fiber) made of 'here &quot; bicomponent fiber &quot; refers to a thermoplastic fiber that includes a core fiber made of a polymer wrapped in a thermoplastic shell made of a different polymer, containing a shell Of polymers often melt at a temperature that is often lower than that of core-containing polymers, so these

Page 62 ί〇ΐ292__ 5. Description of the invention (58) The bicomponent fiber provides thermal bonding due to the melting of the shell polymer, while retaining the required strength characteristics of the core polymer. Suitable bicomponent fibers for use in the present invention may include a cladding / core core 'which has the following polymer combinations: polyethylene / polypropylene, polyethylene acetate / polypropylene, polyethylene / polyester, polypropylene / Polyester, copolyester / polyester, and the like 'Particularly suitable bicomponent thermoplastic fibers for use herein have a polypropylene or polyacetate core and a lower melting point copolyester, polyvinyl acetate or polyacetate Vinyl cladding (for example: DANAKLON®, CELBOND ^ or CHI SSO® bicomponent fibers), these bicomponent fibers can be coaxial or eccentric, here &quot; coaxial &quot; and &quot; eccentric &quot; refer to Whether the cladding has a flat or uneven thickness in the cross-sectional area of the bicomponent fiber, the eccentric bicomponent fiber may help provide a more compressive strength with a lower fiber thickness. Appropriate bicomponent fibers available here may be uncreped (i.e. unbent) or pleated (i.e. bent). Bicomponent fibers may be pleated by typical textile devices, such as a stuffer box method or gear Folding method to achieve a mainly flat or "flat" fold. e S two-fiber, quasi-case, its length can vary depending on the specific melting point and other properties of these fibers, these thermoplastic fibers generally have a length of about 0.3 to about 5 cm, preferably about 0.4 to 3. The length of the centimeter is the best, about 0.6 to 1.2 centimeters long. The properties of these plastic fibers, including the melting point, can also be changed by changing the diameter of the fiber. The diameter of some thermoplastic fibers is often determined by their denier (per component). Heat = two-half each ==) definition, appropriate double special, best about 1.7 to 3 3 ^ special 0 to knife special, preferably about h 4 to 10 points compressibility modulus of these thermoplastic materials, especially thermoplastic fibers Also

Page 63 V. Description of the invention (59) Energy is important. 'The compressibility modulus of plastic fibers is not only affected by its length and diameter, but also the properties and composition of the polymer, fiber shape and structure ( For example, it is affected by axial or eccentricity, wrinkled or unfolded) and similar factors. Forcing them, the difference in the compressibility modulus of plastic fibers can be used to change these properties, especially the density characteristics of each absorbent member during the absorption core of overseas Chinese. "Gatha fluid handling keys" components and materials. The storage absorbent member according to the present invention may include other optional ingredients that may appear in the absorbent web. For example, a reinforced fabric may be located within the storage absorbent structure or each absorbent intervening in the absorbent core. Between the components, if these reinforcing fabrics are located between the absorbing members of the absorbing core, they should be moved: a structure that forms an interface barrier. In addition, several types of adhesives can be used = "" and / or the absorbent storage member itself provides dry and wet integrity, ^ hydrophilicity can provide a combination of high surface area #, which is high for particles :: and It has properties, but those who are familiar with the art also know that there are adhesives that can enhance the absorption properties of the capillary, such as 毖 100 million and the water-based glue of the collecting member. In this belt, there are fibrotic parents with sufficient surface area such as /. # 清 形 中 'in one material' high surface area hydrophilic dolphin absorbable core can be wrapped in a liquid penetrable force-retracting member or eliminate the user's need for loose particles = tissue paper with capillary continuity. A 桠 和 收Polymer concerns, but must not interfere with other materials that can contain the optional component plutonium,

4012 ^ 2 V. Description of the invention (60) Any concern that the absorbent member, inner ', such as a thin piece of paper or a positive, absorbent core can be wrapped in a liquid-permeable layer. Take 'Xiao in addition to the user for loose particles to absorb the polymer. When the adhesive material _ 不 # _ (melt-blown) m ^ physical properties, the appropriate adhesive is the United States of America issued a certificate and type Included in this article, however, No. 878 'which is disclosed by reference to the side melt blowing adhesive. And Γί: the accumulation material and the required hydraulic knee. The forming polymer and the combined fluid are detailed in the '878 patent. The main part of the present invention is the "two storages" for the appropriate fluid stored in the silk' wide 'acquisition / distribution component. The final fluid function of materials and proper fluid storage, and the strong and no-recovery situation of the object, also enhances the fluid pick-up of the object. 纟 Optimal-body treatment. Therefore, the present invention aims to define the absorption properties and acquisition of the storage absorbent member. The desorption property of the / distribution member makes the acquisition / distribution member ί = and is efficiently dehydrated by the storage and absorption member, wherein the fluid acquisition / distribution material still exhibits good fluid distribution properties and thus has a higher capillary pressure. Therefore, in the present invention In one form, the fluid distribution material has one item: at least 075 ml / sec / cm2, preferably greater than 012 ml / sec / cm2, more preferably 0.25 ml / sec / cm2 Large flow rate (/ or long-less than 120 seconds, more preferably less than 50 seconds of fast capillary to 2. 4 cm high height, and at the same time

401292 V. Description of the invention (61)-and the fluid storage area has superabsorbent liquid absorption properties. In one form, the dehydration mechanism can be expressed in terms of the capillary adsorption desorption height (CSDH 9 0) with respect to the acquisition / distribution material releasing 90% of the maximum liquid amount (that is, the amount of fluid at 0 cm desorption height). The absorbent article according to the present invention includes an absorbent structure including a first region mainly for acquiring / distributing liquid and a second region mainly for storing liquid, which are in liquid communication with each other, wherein the first region has Capillary adsorption greater than ^ 0 cm of material with a desorption direction of CSDH 90, and the second region contains a material with sufficient capillary absorption and suction to dehydrate the material. If the material used in the storage region meets at least one of the following requirements, then sufficient Dehydration: G '(a) Cap adsorption test at least 15 g / g of 35 cm absorption energy (CSAC 35); and / or (b) Cap absorption test at least 5 g / cm Grams of capillary absorption energy (CSAC 0), and at least 55% of the capillary absorption efficiency of 40 cm—CSAE 4G; and / or (c) at least 35 cm of absorption height in the cap adsorption test 5 Capillary adsorption and absorption height (CSAH 50), one of the 0% energy. In a preferred embodiment, the second region contains a material having at least 20 g /

CSACCCSAC 40), or at least 15 grams / gram of actual CSDH 90 for the first material. L In another preferred embodiment, the material contained in the second region has a CSAC 0 of at least 20 g / g, preferably more than 25 g / g, more preferably at least 35 g / g, and at least 50% CSAE 40.

In addition, the material contained in the second region may have a CSAC of at least 15 g / g

Page 66 ^ oia &amp; a V. Description of the Invention (62), and the actual CSDH 90 of the first material In another preferred embodiment, the second zone is 乂 55 / ° without CSAE. C SAC 0 per gram, and at least 65% of Γο include a material having at least 15 grams. In another preferred embodiment, the second region AE. Centimeter, preferably at least 60 centimeters, and more preferably ^ 3, having a height of at least one of 45 centimeters and a capillary energy absorption of 50% higher. Centimeter absorption If in another type, the first area is ^ 50). Liquid tendency, such as 3 materials with more than 100 cm. Has reduced release

9 (represented by 0, then the liquid is stored (or the first 2 of 7 = desorption height (CSDH can dehydrate the first area, so the material containing ^ has more Γ pieces of material: ι contains at least one of the following To ^ (a) at least 5 grams / gram of one CSAC 100; (b) at least 15 grams / gram of one CSAC 0 and at least ς〇 / (c) at least 35 cm of CSAH 50. 25% of one CSAE 1〇 〇; In one preferred embodiment of this type, the second area CSAC 0 'and CSAE {60 cm} is at least 50%. In another version of this embodiment, the second area has a bagg / gram of CSAC 0 and at least 50% of the first material sound and material has at least 15 CSAE. The actual material of the material is CSDH 90 in another form of the invention, preferably at least 60 cm in another form of the invention as a first area. Use V ..-the first area to enclose Λ _L ϊ »Φs i The material has at least 45 cm ί 0 cm CSA &quot; 〇. Absorptive structure sentence t I obtain / distribution area 1 of 3 of which is included Fluid handling

Page 67 40 292— V. Description of the invention (63) The quality can be represented by CSDH 80 greater than 35 cm. In order to dehydrate one of these properties, the material contained in the second (liquid storage) area can be described as meeting at least one of the following requirements: '1 (a) at least 15 g / g in the cover adsorption test An absorption energy θ, and / or summer, (b) at least 5 grams per gram of absorbed energy in the cover adsorption test, and at least 50% of 35 cm in absorption efficiency; and / or (c) cover adsorption Capillary adsorption absorption height (CSAH 50), which is 50% of the energy of the absorption height of at least 35 cm cm in the test. b In a preferred embodiment of this type, the material test included in the second region has at least 18 g / g of 35 cm—absorptive energy f &amp; and 35 cm in the lid adsorption test is at least 21 g / *, At least 30 grams per gram at 35 cm in the test for content 1 In another preferred embodiment of this type of cover adsorption, the material contained in the second region has an actual CSDH 80 of at least 15 grams / gram-denier. In a preferred embodiment of this type, the second area 2 = testing. It has an energy absorption of at least 20 g / g at the centimeter, preferably at least 35 g / g, and an efficiency of 35 g at the ancient cover. Absorptivity of at least 50% at the time of knife A. In another embodiment, the material contained in the second region has an absorption energy cover of at least 15 g / g: and in the test, an absorption efficiency of at least 85% and 35 cm. At least 60%, better. Also, the material contained in the second region has at least 15 g / g of energy absorbed in the lid-

Actual material CSDH

Page 68 40139 ^ V. Description of Invention (64) At least one of 50% absorption efficiency. In another preferred embodiment, the material contained in the second area has at least 45 cm of energy at 50 cm of the absorption height of 0 cm in the lid adsorption test.

60 centimeters, preferably at least 80 centimeters of gross percent Mingyou a 50). ··· Field absorption and absorption height (CSAH In another form of the present invention, one of the first area is CSDH 80, and the second area contains a full material family with a material greater than a centimeter: at least -f of the following requirements) at least 1 1 g / g CSAC 60; (b) at least 15 g / g CSAC 0 and up to + .. (c) at least 35 cm CSAH 50. Even %% — CSAE 60; (In one preferred embodiment of this type, the first material with less 11 g / g in the second zone actually contains material of CSDH 80, which in this embodiment has CSAC in two regions. A chair material of grams / gram, preferably greater than at least 25 grams / gram, more = ^ has a CSAC of at least 20 CSAE and at least 50% of CSAE 60. In the form of at least 35 grams / gram, another In one embodiment, the second area includes CSAC of gram per gram, and at least 50% of the first to =: materials have at least 15 CSAE. The actual CSDH 80 of the bucket

In another preferred embodiment of this form, the second &gt; 45 cm, preferably greater than 60 cm, the contained material is 50 ° greater than 8 ° cm-CSAH. Contains material with CSDH 80, greater than 90 cm. Photo, where the first area is _ ____ and the second area contains full

Materials that meet at least one of the following requirements: (a) at least one of 8.5 g / g CSAC 90; (b) at least 15 g / g of CSAC 0; and (c) at least 45 cm-CSM 50. 』% 之 ， 90; Another implementation of this type is 丨 φ, 筮 -P5 ·, t 8 51 / ^ μ ^ One. The material included in the domain has at least the first material of the actual CSDH 8 of the- . In the second embodiment, the material contained in the second region: the material has at least 5 5 g &amp;, more preferably CSAC 0 greater than 35 g / g, and at least 50% of CSAE 60. 〇Go / η In the example, the material contained in the second region has at least 15 g / g of CSAC 0 and at least 20% of the first material actual CSDH 8 of one CSAE 〇 In another preferred embodiment of this type , The second area contains materials that have at least 45 cm, more preferably at least 60 cm, and more preferably at least 80 cm. The absorbent core in the absorbent article provides the following advantages: One advantage is that the acquisition / distribution member or material is effectively dehydrated to contain a smaller amount of fluid that may re-wet the skin of the user, such as EP-Α-0 · 797. 9 6 Evaluation of known rerun test method for PACORM test described in No. 6 1 And, better dehydration will improve the ability to handle repeated gushing liquids, such as improved liquid acquisition processing that can be measured by known acquisition tests, as described in ΕΡ-Α-0.799. 966.

Page 70 (66) This improved dehydration can be shown by the following partition test (partiUoning “Μ) 11, where the combination of acquisition / distribution and storage materials is in a changing device: I! The balance in the component 'then the second component' is separated again, and the residual liquid in each cloth is determined by the differential weighing, which can have good dehydration, whether it is an absolute measurement value (g / g) or relative to its saturation energy . • Point out another excellent design flexibility of the principle design structure of the present invention. The faeces can make the absorbent article have more r. For example, if the separation test is performed to make 2 storage materials and only contain-liquid acquisition cloth HH + containing any liquid acquisition / distribution material and a storage material on a section of the cloth material department, but the liquid acquisition / Distribution material load point level deviation = Unicom (for example, the latter is placed in the demand of the present invention, the liquid is transferred to-), it can be seen that the merger can meet the acquisition / distribution material has a large & encirclement into the storage material, and for example by Will absorb storage even more :: eight load levels. In the area where the fluid is stored :::: It is better to use the obtained design when the load is under load. ^ Remove from the area of the crotch of the object for performance. ㊣ "Cut user-friendly articles without sacrificing more for structures with two components. There are also advantages from similar injuries when you combine them. When more: f and acquisition points can occur when acquisition and distribution. Components, distribution components can be used to obtain fine suction materials to efficiently discharge points ---_ Enemies to strengthen the entire article 7 〖page 14〗, yarn age Ming (67) physical properties. Example materials / ingredients acquisition / distribution materials ( Sample A ...) Sample A. 1's chemically hardened twisted cellulose was made into a first acquisition / distribution member using .air-laying using &quot; CMC (CS) sold by Wyeth, USA. Forming a web, a suitable structure has a basis weight of 195 gsm (grams per square meter) and a dry density of about 0.07 g / cm3. Sample A. 2 Another material has a basis weight of 150 gsm And a dry density of 0. 105 grams per cubic centimeter, including: -4 5% by weight of chemically hardened twisted cellulose (cs), obtained from &quot; CMC1, sold by Wyeth, USA; -45% by weight eucalyptus Fiber;-10% by weight of the United States Hoecht-Serlinz Company Model 255 batch number 33 865 A ° ° CELB OND®, approximately 3.3 dtex and approximately 3.0 denier and a fiber length of approximately 6.4 mm. The material has been air-Uid and then thermally bonded. SSm is another | Material system It is a wet chemical bonding network as described above, which has a density of 50%: soil and 0.094 g / cm3, and contains the following fiber mixed-weight chemically hardened twisted cellulose (cs), obtained from Wyeth

Fifth, the description of the day I (68) "CMC" ~ 10% y weight of eucalyptus fiber, from 2% per unit weight of the United States West Jersey Texson Industries Co., Ltd. A fiber blend of polypropylene amine and ethylene resin sold under the name ParezTM 631 NC. Sample A. 4 The material produced in Example A. 3 with a basis weight of 150 gsm and a density of 0.105 g / cm3 has been described above and EP-A-0. 81 0.07. Go to the post-formation 'where the material is processed between the two rolls with a depth of overlap of 0.2 mm peaks, each with a 10 mm-separated 0.06 mm tooth width. Force storage structure jK sample S ·.) (Invited glass micro-fiber storage in absorbent hibiscus strains, this example describes a high-capacity suction absorbent member, which contains hydrogel forming and polymer collection and formed high surface area glass microfibers In which, a wet-end forming process is used to increase the density and structural structure compared to the conventional air deposition process. In order to form this hydrogel forming absorption polymer containing a member that allows the absorption polymer to be nearly homogeneously distributed in the glass microfiber matrix The following procedures were performed. 4.0 grams of ASAP 2300 (purchased from Kandao Co., Ltd., a subsidiary of American Colloid Corporation, Arlington Heights, Illinois; #available from Revolution Technology, Ohio Division) and 4.0 grams of glass microfiber (corolla (multi-fiber denver manweier sales company fiber coddel8, u〇Bdk ,,)) is a 3 plus life anti-explosion commercial grade warner The blender mixes about 500 milliliters of 3A alcohol (95% ethyl_'5% methanol), or isopropanol or does not deteriorate or inhale similar liquids in the relevant polymer structure or composition. The mixture is mixed at low speed

401292__ Description of the invention (69)-"---- Search for about 5 minutes" Pour the mixture into a 6 "x 6" "paper forming box", an 80 mesh screen is set at the top and bottom of the forming box Nylon forming line (purchased from Elboton Manufacturing, Productivity Solutions, Nina, Hampshire). Add 3Α alcohol or a suitable solution to make the water level above the screen approximately 8 inches (approximately 20.3 cm 11 centimeters), use a paddle to thoroughly stir the solution on the top of the forming box before discharging the liquid, and below the opening &gt; line Open a valve and quickly drain the liquid to ensure uniformity &gt; accumulate on the forming line, remove the screen from the &quot; forming box &quot; and pass a vacuum source to remove the loose liquid 'and in a desiccant containing (such as Missouri 6 3 丨 7 8 DRIERITE of Simon Chemical Co., Ltd. in St. Louis to dry overnight with air to ensure a uniform moisture content. The absorbent member is dried and removed from the forming screen G 'net. 5. 4 cm cylindrical structure to measure capillary absorption energy. Sample S. 2 from the preparation of a HI PE 砉 籍 _ anhydrous calcium carbonate (36 · 32 kg) and high potassium sulfate (丨 8 9 g) dissolved in 3 78 liters of water 'to make the water phase flow It is used in a continuous procedure to form a hiPE emulsion. For one containing distilled styrene diene (42.4% styrene diene and 57.6% ethyl-styrene) (2640 g), 2-ethylhexyl acrylate (4400 g) and hexanedioldiacrylate (960 g) The monomer combination was supplemented with diglycerin, a monooleate emulsifier (480 g) ', di-tallow diammonium methyl v sulflate (80 g), and Tinuvin 765 (20 g). Diglycerol Monooleate Emulsifier (Grinstead product, Berbrand, Denmark) contains about 81% of diglycerol monooleate, 1% of other diglycerol monooleate, 3% ρ ο 1 y 〇1 s and 1 5% of other polyglycerol esters' to give a minimum oil / water of about 2.7 dyne / cm

O: \ 57 \ 57442.ptd -i〇i29a ______ V. Description of the invention (70) The interface tension value, with a key cumulative concentration of oil / water of about 2.8% by weight, 'After mixing, this material combination can settle overnight No visible residues were formed and all the mixture was withdrawn and used as the oil phase in a continuous procedure to form a stack of IPE emulsions. The oil-phase (25 ° C) and water-phase (5 3-5 5 ° C) separate flow system is fed to a dynamic mixing device 'the combined flow system is thoroughly mixed in a dynamic mixing attack by a pin blade' pin The blade contains a cylindrical shaft with a length of about 36.5 cm and a diameter of about 2 g cm. § The helical axis contains six rows of pins, ten of which have 33 pins and three rows of 3 and 4 pins. The pins are arranged at 120 degrees to each other at each level position, and the next level position is arranged at an angle of 60 degrees to its neighboring level position, where each level position is separated by 0.03 mm, and each pin has a center axis of its own axis. The axis extends outward by a length of 2.5 cm of a diameter of 2.5 cm. The pin blade is installed in a cylindrical sleeve forming a dynamic mixing device, and the pin is spaced 1.5 mm from the cylindrical sleeve wall. A small part of the fluid system leaving a dynamic mixing device is drawn out and enters the cyclic zone. For example, US Patent Application No. 08/7 1 6, 5 1 0 in the joint examination filed by Dimarry on September 17, 1996 The diagram reveals which Waukesha in the recirculation zone is incorporated by reference in this article, which cylinder returns the small portion to the entry point of the oil and water phase flow to the dynamic mixing zone. The static mixer (T AH industrial model 100- 8 1 2) has 12 1-inch (2.5 cm) outer diameter components. A hose is installed downstream of the static mixer to facilitate the delivery of the emulsion. To the device used for curing, an additional static mixer provides additional back pressure as needed to keep the hoses filled. The selective static mixer can be a 1-inch (2.5 cm) hard tube and 12 components mixed (Oro, Ohio

O: \ 57 \ 57442.ptd Page 75 4013 Y- ~ ___ V. Description of the invention (71) McMeister-Carr Model 3 529K53). The installation of the combined mixing and recirculation device is filled with 4 parts of water to 1 part, and the ratio of the oil phase and the water phase 'dynamic mixing device is ventilated to completely fill. This device allows the air to escape during the filling period The oil, oil phase and water phase with a flow rate of 7.57 g / s and 30.3 cm / s. '' Once the installation has been filled, the search is started in a dynamic mixer, the blades rotate at 1750 RPM and begin to recirculate at approximately 30 cubic centimeters per second, and the flow rate of the water phase then continues for approximately 1 minute The internal rate increased steadily to a rate of 5 cm3 / cm2, while the oil phase flow rate decreased to 3.00 g / sec during about 3 minutes. The recirculation rate increased steadily to about 15 m during about 3 minutes. Cubic centimeters per second. At this time, the back pressure generated by the dynamic zone and the static mixer is about 199 pieces per square inch (137 kPa), which represents the total pressure drop of the system. The speed of the Waukesha drum (model 30) was steadily reduced to a recirculation rate result of approximately 75 cubic centimeters per second. Force. The IP E flowing from the static mixer is now collected in a 40-inch (102 cm) straight grip and 12.5 pairs (31.8 cm). It also has one of the removable side edges similar to the pan-shaped pot used in cake making. The bottom of a tubular polyethylene insert in the shaped polyethylene tube is 12.5 忖 (31.8 cm) directly controlled and firmly attached to the center of the bottom and is &quot; &quot; 1 2. 5 leaves (3 1. 8 cm ) Shang's tube system containing Η ΡΕΕ was kept in a 65 ° F chamber for 18 hours to cause polymerization and formation of foam. Remove the solidified Η I PE foam from the curing cylinder. At this time, the residual water phase (including dissolved emulsifier, electrolyte, initiator residue and initiator) of the foam is about 48-52 times the weight of the polymerized monomer. (48-52 ×), cut the foam into 0.185 inch (4.7 mm) thick pieces with a sharp repeated saw blade, these pieces were then

4〇j2aa— V. Description of the invention (72) The two hole-shaped nip rolls installed in a series of vacuum are compressed, and the residual water phase content is gradually reduced to about 6 times the weight of the polymer material (6χ). At this time, the 1.5% calcium gas solution was then saturated at 60 degrees (: the tablets were saturated again, ^ installed vacuum-system, three rows of crevices were squeezed to about ^ water phase inclusion The gasification content of the foam is between 8 and 10%. After the final nip, the foam is kept compressed at about 0.0021 inches (0053 cm), and then the IP foam is dried in the air. In about 16 hours, this drying reduces the moisture content to about 9-17% by weight of the polymerized material. At this time, the foam sheet is extremely drape-like and thin-after-drying. &quot;. Sample S. 3 Preparation of a high surface area bubble post from IPE I. Preparation of a water and oil phase flow for a continuous process for η IPEE emulsion according to sample S. 2 and separation of the oil phase (25 ° C ) And the flow of the water phase (5 3-5 5 ° C) are fed to a dynamic mixing device as detailed in sample S. 2. Once the device has been filled, agitation is started in the dynamic mixer. 170ORPM rotates and starts to recirculate at about 30 cubic centimeters per second, and the flow rate of the aqueous phase then increases steadily to about 1 51 cubic centimeters per second in about 1 minute. Rate, while the oil phase flow rate dropped to 3. 36 g / 's in about 3 minutes, and the recirculation rate increased steadily to about 150 cm³ / s in about 3 minutes. At this time, the dynamic zone and static mixing The back pressure generated by the device is about 19.7 pounds per square inch (13.6 kPa), which represents the total pressure drop of the system. The speed of the Waukesha drum is stabilized to about 75 cubic meters. Recycle rate results in cm / s. The H1 pE flowing from the static mixer was now collected and cured into one of the polymer foams as detailed in sample s.2.

O: \ 57 \ 57442.ptd Page 77 401298 --- 1 ------------------- V. Description of the invention (73) Remove and solidify from the curing cylinder + HIPE foam, at this time, the residual water phase (including dissolved emulsifier, electrolyte, initiator residue and initiator) of the foam is about 43_47 times (43_47χ) the weight of the polymerized monomer, with sharp repeated ore pieces The foam was cut into 0.185 inch (4.7 mm) thick sheets. These sheets were then compressed in two hole-shaped nip rolls equipped with a series of vacuum to reduce the residual water phase content of the foam to About 6 times the weight of the polymeric material (6χ). At this time, the tablets were again calmed with 1.5% emulsified mother solution at 60 ° C, and squeezed to a water content of about 4χ with a series of three hole-shaped nip rollers equipped with a vacuum. The gasification calcium content is between 8 and 10%. After the final nip, the 'foam is kept compressed at about 0.028 cm (0.071 cm), and then the IPE foam is dried in the air for about 16 hours. This drying will be wet! Reduce to about 9-17% by weight of the polymerized material. At this time, the foam sheet is extremely droopy and &quot; thin after drying. &Quot; Sample S. 4 prepares a high-surface foam from IΗI Ρ Ε Beibei prepared the flow of water and oil phase, the separated oil phase (25 ° C) and water phase (5 3-5 5 ° C) used in the continuous process of forming Η I Ρ Ε emulsion based on sample S · 2. The flow is fed as described in sample S. 2 to a dynamic mixing device. Once the device has been filled, the dynamic mixer starts to actuate the blades to rotate at 1 750 RPM and at about 30 cubic centimeters per second. Recirculation was started, and the flow rate of the water phase was then steadily increased to a rate of 1 5 丨 3 cubic centimeters / second in about 1 minute, while the flow rate of the oil phase was reduced to 3. 78 g / second in about 3 minutes, The recirculation rate has steadily increased to about 150 cubic centimeters per second in about 3 minutes. At this time, the back pressure generated by the dynamic zone and the static mixer is about 丨 8 7 pounds per square inch (1 2 9 kPa). It represents the total pressure drop of the system.

O: \ 57 \ 57442.ptd Page 78 4 [01292 V. Description of the invention (74) (Waukesha) The speed of the drum was steadily reduced to a recirculation rate result of about 75 cubic centimeters per second. The HIPE flowing from the static mixer was now collected and cured into one of the polymer foams as detailed in Sample s.2. Remove the cured ΗI PE foam from the curing cylinder. At this time, the residual water phase (including dissolved emulsifier, electrolyte, initiator residue and initiator) of the foam is about 38_42 times (38_42χ) the weight of the polymerized monomer. With a sharp repeated saw blade, the foam was cut into a thickness of 185 inches (4.7 mm), and these pieces were then compressed in the two hole-like quilts installed in the vacuum-series. The foam = residual = mesh content is gradually reduced to about 6 times the weight of the polymeric material (6χ). At this point again 1.5 /. The gasified calcium solution was saturated at 60 ° C: the tablets were re-saturated, and the calcium content of the cotton-wrapped cotton was squeezed to about 4 × with three holes of the Qiao-series, and the lice calcium content was between 8 and 10%. After the final nip, the foam is kept compressed at about 0.028 ... then the foam is dried in the air. 2.2. It is reduced to about 9_17% of the polymerized material. And &quot; Thin after drying &quot;. '' The foam sheet is extremely extreme. This example describes-high capillary suction-absorbent polymer and the ancient η ^ τ prepared according to sample 3 · 3 contains a hydrogel to form a composition containing Make the absorbent polymer and polymer door suction ♦ Combine the foam material, one of the components, hydrogel shape the absorbent polymer ^ Close to a more homogeneous distribution of 10 grams of air-dried polymer foam (follow the following procedures. There is a 1. The 25-liter bottle mixer (special clamp S. 3 wound) is placed in the blower j-Teleze model 848, 360ms, high surface fine polymerization

The rolled f contains 1 liter of 2% gasification solution. "After confirming all foam materials &quot; Mody ^, after" the dispenser is moved to 'liquefaction' (high setting value) for 10 seconds, and then _ The ancient e S was stirred for another 5 seconds, and the resulting slurry was then transferred to a 6-tap BUChner funnel (the model of the American Couls company had an oak teng of 500 ml of liquid freely discharged from the sample, and the sample was then covered). Sample 2 Apply a vacuum (about 500 mmHg or about 66 kPa) to dehydrate the sample to a weight of 50 to 60 grams. 7 散 散 sample t :: 瓶 ί Ϊmixer bottle and set in & quot Liquefaction &quot; agitate it to separate the particles into almost individual particles. Position several times to make the sample large, air dry, and then foam the make-up: The sample of T was then purchased from Yili under ambient conditions at 2300. ; == gel-forming absorbent polymer belongs to Gaozhou Xinhai Revolutionary Breguet Paper Technology = Kandao Company; can also be purchased from the Ohio absorbent member, which contains 5 {)% by weight 1 amount 'to provide-storage high surface area Homogenization of polymer foam // gel-forming polymer and 50% by weight ... _ ~ ~ shell &gt; t dagger compound. This example describes a high-capillary shaped absorbent polymer and a high-blade absorbent member that includes a hydrogel division (Charlotte, North Carolina) ^ fibril, which is available from Hector Serrin The area of fibrils and hydrogel forming absorbent = 2 cellulose F i bre t S® high surface of Kantau Company, Ballodin, Lino. (ASAP 2 300, purchased from Ziyi The paper technology department of the Alkali Company) can also be constructed from the 50% by weight hydrogel contained in the Revolutionary Podium of Ohio, Ohio: Shape =-storage and absorption member 'and its mixture. 5 and 50% by weight Fibril

401-290 ^ ------- V. Description of the Invention (76) Example Compilation As described in the general part of this description, there can be many different possible ways of absorbing cores, on the premise that these cores include The storage area is one of the acquisition / distribution areas of liquid communication, and the materials used in these areas meet the representative needs. Therefore, these cores can be composed of materials arranged in layers, which have adjusted basis weight and dimensions to meet the requirements of the above-mentioned required applications. Often called the MAX I size baby diaper, it is a special rectangular shape with a core length of about 100 mm and a width of about 100 mm ... The distribution area of the dagger 3 is a layer of material with a rectangular shape, and the pot—in, ¾ Λ * * 4t v, g covers the absorption core. The liquid storage area can also be rectangular, and it can also be laid as an m distribution area. # t 心 的 整 赵 尺 The overall length and / or width of the receiving core can be engraved on the material. The thickness of the material can be uniform on the suction core. Absorption in any early structure Basically for functional purposes, the root chooses to acquire / distribute materials and store village materials. Based on the capillary suction properties described above, according to this principle, the following combinations may have appropriate properties: Α.2 Α.3 Α.4 yyyyyyyyyyy η n 5.1 5.2 5.3 5.4 5.5 5.6 A.1 yyyyyynyyyyyn A. 5 yyyyyy A. 6 yyyyyyyy A.7 yyyyyy _Test 裎 庠

P. 81 five i ££ 292 ^

2. Description of the invention (77) The system that stores this absorption error # is the measured capillary absorption energy as a function of the absorption energy of the present invention. This function is also used to measure that capillary absorption does not include permeability. As a function of the height of a high surface area material—that is, a component A absorbent such as a hydrogel-shaped absorbent polymer or a selective material used for absorbing and storing hibiscus, but the following is directed to the relevant measurement-one of the complete objects A # capillary adsorption method). Capillary adsorption is any absorption ^ ^ 丨 Biomass controls how liquids are absorbed into the absorption structure. In Mao Zhi ^ Jue test is based on the height of the sample relative to the test fluid tank 1 Two body pressure: a function 'To measure the energy absorbed by capillary adsorption. The method of capillary adsorption of Fen + = Cassia is known, see Burkini, Α. Α ·; 'c.' Capillary adsorption balance in fiber mass &quot;, Textile Research Period U (1 9 6 7), 3 5 6 — 3 6 6; Butterjee, P. κ., Absorptive, Textile Science and Technology 7 'Chapter II, pp 2 9-84, Love Thinking Science Press BV' 1985; and September 9, 1986 U.S. Patent No. 4,610,678 to Weissman et al. Discusses methods for measuring capillary adsorption of absorbent structures. 'These reference disclosures are each incorporated herein by reference. Principle: An uninterrupted fluid column is used to connect a porous glass frit to a scale, a fluid reservoir of the balance 'The sample is maintained under a fixed limit under heavy stems during the actual test' The weight loss of the pore-like structure as needed is recorded as fluid uptake, and it is taken by the ancient ^ ^ even 什 storage tank 璃 glass melting block ... adjusted, measured a variety of different

Page 82 "-~ 4 ^ 12 level V. Description of the invention (78) Tension or height) of energy and 摄取 ^.., ^ Times of uptake, due to the gradual decrease of the frit (also gp receives v fine suction) Incremental absorption occurs. K The hair is reduced during the experiment and the time is monitored to calculate a rate of 200 cm (g / g / h). Effectively ingest the liquid reagent test liquid: 6 people from the following materials to W ~ M side I u A + ~ π needle 70 is completely dissolved in distilled water to prepare human cadaver compound sodium sulphate sodium chloride (NH4) H2P04 (NH4> 2HP04 calcium chloride dihydrate (CaCl2.2H2〇) magnesium chloride hexahydrate (MgCl2.6H20) The general FW concentration (g / l) of the equipment is 74.6 2.0 142 2.0 115 0.85 132 0.15 147 0.25 203 0.5 Degree C) operation, a test sample is placed on the broken glass melting block 502 in FIG. 2A, and the glass frit 502 is connected to a scale liquid storage tank 506 containing a test liquid by a continuous test liquid (synthetic urine) column. Storage tank 506 is placed on the pole 507, the scale 507 is an interface with a computer not shown, the scale should be able to read 0. 0 0 1 gram; this scale can be purchased from Metole Dorreto (Company PR1203) in Highlands, New Jersey. A glass frit 502 is placed on one of the vertical sliding portions 5 0 1 shown in FIG. 2A so that The test sample is moved vertically to expose the test sample to a changed suction height (sue ti on he i gh ts). The vertical sliding portion may be a rodless actuator, which is attached to a computer to record the suction height and corresponding time for measurement. test

Page 83 401292__ V. Description of the invention (79) — '—Liquid uptake of the sample' A better rodless actuator is purchased. The product name is 202X4X34N-lD4B-84-PCSE from the industrial plant (Novado, California), which can be constructed by Computer motor (Ronnen, California) motor drive ZETA 6 1 04-83-1 3 5 Power supply, which is measured and transmitted from the actuator 501 and scale 507, which can easily generate capillary absorption energy for each test sample data. In addition, the computer interface of the actuator 501 can make the glass frit 502 have a controlled vertical movement, such as' the actuator can be guided so that the glass frit 502 can reach &quot; balance only at each suction height "(see below) The vertical movement of the glass block 502 is later. 'The glass block 502 is connected to the tube 503 at the bottom, Tygo n§) The tube 503 connects the block 50 5 to the three-way drainage faucet 509, and the drainage faucet 5 0 9 passes through (the glass tube 504 And the faucet 510 is connected to the liquid storage tank 505 (the faucet 509 can be opened for drainage only when the device is cleaned or the air bubbles are removed) ^ the glass pipe 511 is connected to the fluid storage tank 505 and is connected to the scale fluid storage tank 506 via the faucet 510 The scale liquid storage tank 506 includes a light weight 12 cm diameter glass plate 5 6A and a cover 50 6B. The cover 5 06B has a hole for the glass tube 511 to pass through and contact the liquid in the storage tank 506. The glass tube 511 cannot touch the cover. 506B, otherwise it will result in unstable scale readings and cannot be measured with test samples. The diameter of the glass frit must be sufficient to accommodate the piston / cylindrical device as described below to accommodate the test sample, and cover the glass block 502 to A fixed temperature was set to protect it from a heating bath. The frit was a 350 ml frit dish funnel, designated (with 4 to 5.5 micron holes, available from Corning Glass Company (Corning, NY) # 36060-350F, These holes are fine enough to keep the surface of the melt block wet at the specified capillary absorption (the glass block does not allow air to enter the continuous column of liquid under the glass melt block).

Page 401 292

: Γ I 5. Description of the invention (80) As stated, the 'dissolving block 502 is connected to the fluid storage tank 505 or the scale liquid storage tank 506 by a pipe according to the position of the three-way faucet 51 °. The glass melting block 502 is hooded to receive water from a fixed temperature cell, which will ensure that the temperature of the glass melting block is maintained at a fixed temperature of 88 degrees ((3 丨 degrees c) during the test procedure, as shown in Figure 2A. The frit 502 is equipped with an inlet port 502A and an outlet port 502B, and forms a closed loop with a circulating heat pool 508 as shown in the figure (the broken glass cover is not shown in Figure 2A, but it leads from the pool 50 8 to Canada) The water in the cover Xiuli frit 502 does not contact the test liquid, and the test liquid does not circulate through the fixed temperature cell, and the water in the fixed temperature cell circulates through the glass frit 502 plus the cover wall). Storage tank 506 and scale · 5 7 are enclosed in a box to minimize the evaporation of the test solution from the G-rod storage tank and to enhance the stability of the scale during the experiment. The phase 5 1 2 shown in the figure has a top And wall, wherein the top has a hole for the pipe 511 to pass through. The glass frit 502 is detailed in FIG. 2B. FIG. 2B is a cross-sectional view of the glass frit. The inlet port 50 2A and the outlet port 502B are not shown in the figure. As mentioned, the glass frit is a 350 ml smelting dish funnel. , Which has the specified 4 to 5.5 micron pores' Please refer to FIG. 2B. The glass frit 502 includes a cylindrical hooded funnel 550 and a glass frit dish 560. The glass frit 502 also includes a cylindrical / piston assembly. To 565 (which includes a cylinder 5 66 and a piston 56 8) to define the test sample 5 7 0 ′ and provide a small limiting pressure to the test sample. In order to prevent the test liquid from excessively evaporating from the glass frit dish 56 0, a Teflon ring 5 6 2 was placed on top of the glass frit dish 56 0, and the Tef 1οι® (Teflon) ring M was 0.0127 cm. Thick (purchased from McMeister Carr # 8569K 16 and cut to size) and cover the surface of the frit dish outside the cylinder 5 66, so as

Page 85

—101282 V. Description of the invention (81) The outer diameter and inner diameter of the evaporation ring of block (81) are 7 6 and 6.3 cm. The inner diameter of Tef 1 ring 5 62 is about 2 mm smaller than the outer diameter of cylinder 566. 1 ^ 〇 type ring (purchased from McMaster Micro # AS568A_15〇 & AS568Ai5i) 564 set two: 562 on the top, '乂 seal Teflor® ring 5 62 and the cylindrical inner wall of the funnel 550 Space to further help prevent evaporation. If the outer diameter of the o-ring exceeds the inner diameter of the cylindrical hood funnel, the diameter of the o-ring is reduced to cooperate with the funnel as follows: cut the o-ring, cut off the amount of o-ring material required, and the y-ring goes Back gluing makes the O-ring contact the inner wall of the column 5 50 along the periphery. As shown in Figure 2B, one of the cylinder / piston assemblies 5 65 limits the test sample and provides a small limited pressure to the test sample 570. Please refer to Figure 26. The assembly 56 5 contains a cylinder 566, a cup Tefl0ng) piston 568, and one or more weights (not shown) that fit in piston 5 6 8 as needed (combined piston weights and selective weights need to be adjusted to get 0.2 based on the dry diameter of the test sample Selective weighting can be used at a limit pressure of pounds per square inch, as described below. The cylinder 56 is a Lexar® rod and has the following dimensions: a 7.0 cm outer diameter, a 6.0 cm inner diameter, and a height of 6.0 cm. . Ten〇rg) Piston &amp; 8 has the following dimensions: less than the cylinder 5 66 inner diameter 0. 02 cm outer diameter, as shown in Figure 2 D. The piston 5 6 8 of the non-contact test sample is bored to provide a 5. Chamber 590 with a diameter of 〇 cm and a depth of about 1.8 cm to accommodate 0.2 lbs per square pair (1.4 kPa) of the test sample to limit the pressure required for selective weighting (by the actual dry size of the test sample) (Determined), in other words, the total weight of the piston 568 and any selective weight (not shown) distinguished by the actual diameter of the test sample (when dry) should reach a defined pressure of 0.2 crush per square inch. Cylinder 566 and piston 401092 7? Ming Yueguang 89, === wool-suction ... Before the test, the system was treated with a non-surfactant (not shown) (not shown), and the capillary opening film (14) XI 4 cm to minimize the sample t \ Cover the glass frit 502 during the period, and knot on the bottom side of the film. The opening is large enough to prevent the test sample from being condensed during the experiment. Have to test the sample, when the sample is 1 collection, 5 items, 4 straight, circular structure, and the removal of the item before the injury, it must be in the physical properties of the test :): : M 、 Constituting material test sample, so that the planting A 婼 2 肜 all the material of the component to prepare a diameter of cm &lt; and Γ ,,: are the representative of the component, the test sample is a 5.4 罝 仫 circular and consists of An arched punch is cut. Top: The dry weight (hereinafter used to calculate the capillary absorption energy) is the weight of the test sample prepared under the conditions of% 浼 as above. t test blue double 5. ! ·; The dry / + and dry glass frit 502 is placed in a funnel fixture attached to the vertical slide, and the funnel fixture of the vertical slide is moved; the frit is located at a height of 0 cm. Add 2. Install the device assembly as shown in Figure 2A above. ^ 3. Place a 12 cm diameter liquid storage tank 50 6 on the scale 50 7, place a plastic cover 506B above this scale liquid storage tank 506, and place a plastic cover on the scale

401292 V. Description of the invention (83) Above the box 5 1 2 each has a small hole for the glass pipe 5 1 1 to pass through, so that the glass pipe does not touch the scale liquid tank cover 5 06B, otherwise it will cause an unstable reading. You cannot use the measured values. 4. For the pipe fitting 5 0 4 close the faucet 5 1 0 and for the glass pipe fitting 5 1 1 open 'the fluid storage tank 5 filled with the test fluid first is opened, so that the test fluid enters the pipe fitting 51 1 to fill the scale fluid storage tank 5 06 . 5. Lay the glass frit 502 flat and fix it in place, and ensure that the glass frit is dry. · · 6. Attach Tygon pipe fitting 503 to the faucet 50 9 (the pipe fitting should be long enough to reach the glass frit 502 without tangling at the highest point of 200 cm), from the liquid storage tank 5 0 5 to test the liquid vessel Fill this τ yg 〇η pipe fitting. 7. Attach the Tygem pipe fitting 503 to the horizontal glass melting block 502, then turn on the faucet 50 9 and the faucet 51 0 leading to the glass frit 502 from the fluid storage tank 5 05 (faucet 5 10 should close the glass pipe 511 ). The test liquid filled the glass frit 502 and removed all trapped air during the filling of the horizontal glass frit. Continue filling until the fluid level exceeds the top of the glass frit dish 5 6 〇 'Empty the funnel and remove the tube All the bubbles in the funnel can be removed by inverting the glass frit 502 and raising the air bubbles to dissipate through the faucet Mg discharge port (the bubbles often collect on the bottom of the glass frit dish 56). It is small and can be fitted in a cover hopper 5500 and a flat surface on the surface of the glass frit dish 560 to make the frit flat again. 8. Zero the glass frit and scale liquid storage tank 506 to achieve this. 'Take a long Tygon fitting and fill it with test liquid. Place one end in the liquid storage tank 506 and use the other end to position the glass block 502. , Fittings

P. 88 wui 23 ^; ___ V. Description of the invention (84) The test liquid level indicated by f (equal to the permanent position of the scale liquid storage tank) is 10 mm lower than the top of the sloping soil plate 5 6 0, if this is not the case Then, the amount of liquid in the storage tank is adjusted or the zero position on the vertical sliding portion 501 is reset. 9. Attach the outlet and the inlet port to the inlet and outlet of the glass melting block Tan 502A and 502B from the temperature cell 5 0 8 through the pipe fittings. The temperature of the glass melting block plate 5 60 can be 31 ° C, and the liquid can be tested. The glass frit is partially filled and its temperature is measured after the equilibrium temperature is reached for measurement. The cell needs to be set slightly higher than 31 ° C to allow water to be dissipated during the travel of the glass to the glass frit. 10. The glass frit is balanced. 30 The capillary adsorption parameters are electrically determined to determine whether the glass frit stops at various heights for one of the nine lengths of time. At the end of the time interval, the fluid storage is read and the scale is read, so the computer can calculate the flow at a fixed continuous time interval between the test rate and the storage tank at the flow rate (change in reading / hour; The rate is less than "quote a law" and when referring to the equilibrium state, e understands that for the special macro :: :: constant flow rate 'test sample apparent constant &quot;, you may not be able to achieve the truth, you: when Achieved the specified "equilibrium for 5 seconds" The actual equilibrium, the time interval between readings is specified as the "equilibrium sample" in the delta table, the maximum number is in the capillary adsorption directory constant in the capillary adsorption directory The number of deltas in the medium & 500, and the flow rate recorded in the neutralization are |, the equilibrium constant &quot;.

4012 ^ 2 V. Description of the invention (85) ‘The equilibrium constant is registered in units of grams / second, ranging from 0.0 0 0 1 to 1 0 0. 0 0 0. The following is a simplified logic example. The table shows the scale readings and the calculated variable flow rate (D e 1 t a F 1 0 w) for each time interval. Equilibrium sample = 3 Equilibrium constant = 0. 001 5 0.350

0.000- 0 2 4 6 8 10 time interval

Page 90 4〇mt V. Description of the invention (86) Time interval scale value (g) Change flow rate (g / s) 0 0 1 0.090 0.0180 2 0.165 0.0150 3 0.225 0.0120 4 0.270 0.0090 5 0.295 0.0050 6 0.305 0.0020 7 0.312 0.0014 8 0.316 0.0008 9 0.318 0.0004 Time 0 1 2 3 4 5 6 7 8 9 Delta 1 9999 0.0180 0.0180 0.0180 0.0090 0.0090 0.0090 0.0014 0.0014 0.0014 Delta 2 9999 9999 0.0150 0.0150 0.0150 0.0050 0.0050 0.0050 0.0050 0.0008 0.0008 Delta 3 9999 9999 9999 0.0120 0.0120 0.0120 0.0120 0.0020 0.0020 0.0020 0.0004 The balanced intake of the simplified example above is 0.318 grams. The balanced intake of the above simplified example is 0.3 1 8 grams. The following is the C language code for determining the balanced intake: 40ΐύί

V. Description of the invention (87) / * takedata.C * / int take_data (int equil samples, double equilitffium_constant) {'double delta; static double deltas [500]; / * table to store up to 500 deltas 500 change values) * / double value; double prevvalue; clock t next time; int i; for (i = 0; i &lt; equil one samples; i + H ·) deitas [i] = 9999 .; / * initialize ail values in the delta table to 9999. gms / sec (set the initial values of all values in the change table to 9999) * / delta_table_index = 0; / ^ initialize where in the table to store the next delta (set the next change value in the table Location of the command) V equilibrium_jeached = 0; / * initialize flag to indicate equilibrium has not been reached * / next_time = clock (); / · ΐιώΪ3ΐίζ6 vsiien to take the next reading (set When to take the next reading) //-prev_reading = 0 .; / * initiali2e the value of the previous reading from the balance (set the previous reading from the section) * /

while (! equilibrium_reached) {/ * start of loop for checking for equilibrium (y next time + = 5CXX) L; / * calculate wiien to take next reading (calculate when to take the next reading) * / while (clock () &next_time); &quot; wait until 5 seconds has elapsed from prev reading * / value = getbalance_jeading (); / * read the balance in grains ) * / delta = fabs (prev_value-value) /5.0; &quot; calculate absolute value of flow in last 5 seconds * / prev_value = value; / * store current value for next loop * (Save the current value of the next circuit) * / delta [delta_table_index] = delta; / * store current delta value in the table of deltas * / delta_table_index-H-; / * increment pointer to next position in table * / if (delta_table_ii \ dex == equil_samples) / * when the number of deltas = the number of (when the number of deltas equals) * / delta_table_index = 0; / * equilibrium samples specifie d (Specify the equilibrium sample χ / * / • reset the pointer to the start of the table. This way (re-determined to start this table, so) · // * the table always contains the last XX current samples (本 表Always include the last XX current samples) *, equilibrium_reached = 1; / * set the flag to indicate equilibrium is reached * / for (i = 0; ΐ &lt;β9ΐύ1_83ΐηρΐ63; ί · Η ·) / * check all the values in the delta table * / ifl; delta [i} &gt; = equilibrium_constant] / * if any value is &gt; or = to the equilibrium constant (if any value Greater than or equal to the equilibrium constant) * / equilibiium_reached = 0; / * set the equilibrium flag to 0 (not at equilibriumX) * /} / * go back to the start of the loop (Return to the starting point of the circuit) * / Capillary adsorption parameter Load description (limiting pressure): 0.2 lbs per square inch Load balance sample (η): 50 Equilibrium constant: 0.005 g / sec Installation height value: 1 0 0 cm completed height value: 0 cm hydrostatic head parameters: 20 0, 180, 160, 140, 120, 100,

Page 92 4〇1_ 5. Description of the invention (88) 90, 80, 70, 60, 50, 45, 40, 35, 30, 25, 20, 15, 15, 10, 5, 0 cm. Use all the above specified heights to perform the capillary adsorption procedure in the specified order to measure the capillary absorption energy. Even if it is necessary to determine the capillary absorption energy at a specific height (such as 35 cm), the entire series of hydrostatic head parameters must be completed in the specified order. Although all of these heights are used to perform capillary adsorption tests, and a capillary adsorption isotherm is generated for a test sample, this disclosure is located at a specified height of 200, 140, 100, 50, 35, and 0 cm. Absorptive properties describe storage absorbent members. Capillary adsorption: 1) Follow experimental setup procedures. 2) Make sure that the temperature cell 50 8 is turned on, and water is circulated through the glass frit 50 2, and the temperature of the glass frit dish 560 is 31 ° C. 3) Place the glass frit 50 2 at a suction height of 200 cm, and open the faucets 509 and 510 to connect the glass frit 502 and the scale liquid storage tank 506 (the faucet 510 is closed to the liquid storage tank 5 05), and the glass is melted. Block 5 0 2 for 30 minutes. 4) Enter the above capillary adsorption parameters into the computer. -5) Close the faucets 5 0 9 and 5 0. 6) Move the glass frit 50 2 to the installation height of 100 cm. 7) Place the Teflon ring 5 62 on the surface of the glass frit dish 5 60, place the 0 ring 5 64 on the Teflon '^ ring, and place the preheating cylinder 566 coaxially on the Teflon ring. The cylinder 566 placed axially on the glass frit plate 560 'places the piston 568 into the cylinder 566 and places an additional limited weight into the piston chamber 590 as needed.

Page 93 4〇ΐύζ ____ V. Description of the invention (89) 8) Cover the glass frit 5 0 2 with an opening film. 9) At this point the scale reading establishes a zero or tare reading. 1 0) Move the glass frit 502 to 200 cm. · 11) Turn on the faucets 5 0 9 and 5 1 0 (the faucet 5 1 0 is closed to the fluid storage tank 5 0 5). And start to read the scale and time reading. Correction of glass frit (blank correction uptake) Because the glass block 560 is a hole-like structure, it is necessary to determine the capillary absorption (abstraction correction uptake) of glass melting block (502) and subtract it to obtain a true test sample. Capillary absorption absorbs uptake. For each new glass frit used, glass frit correction is performed, unless G does not have a test sample, as described above. The capillary adsorption procedure is performed to obtain the blank uptake (g). The elapsed time at each specified height is equal to the blank time ( second). Evaporation loss correction 1) Move the glass frit 502 to 2 cm above zero, and equilibrate it at this height for 30 minutes when the faucets 509 and 5 10 are turned on (close the storage tank 5 05). 2) Turn off the faucets 50 9 and 510. 3) Place the Teflon ring 5 62 on the surface of the glass frit plate 5 60, place the 0 ring 564 on the Tefion 5) ring, place the preheating cylinder 566 coaxially on the Teflon ring, and place the piston 568 on the ring Into the cylinder 566, the apertured film was placed on the glass frit 50 2. v, 4) Turn on the faucets 50 9 and 510 (close the storage tank 5 05) and record the scale reading and time in 3.5 hours. The sample evaporation (g / hour) is calculated as follows: [1 hour scale reading-3. 5 hours of scale readings] / 2. 5 hours even after careful operation as described above, there is still some evaporation loss.

Page 94 41 ^ 2 ^ 2 V. Description of the invention (90) The sample and frit correction are usually about 0.10 g / hour. Ideally, samples were measured for each newly installed glass frit 5 0 2 evaporation. Equipment cleaning, when a new glass frit 502 is installed, use a new Tygon / tube 503. If microbial contamination occurs, use 50% Clorox Bleach in distilled water to clean the glass tube 504 and 511, fluid storage tank 5Q5 and weighing liquid storage tank 506, and then rinse with distilled water. a. Clean up the preparation of the next experiment. At the end of each experiment (after the test sample has been removed), the glass frit is rinsed in the front with the 2 50 ml test liquid from the liquid storage tank 50 5 (that is, the bottom of the glass frit C block is introduced). Test liquid) and remove the remaining test specimen from the glass frit dish hole. Since the faucet 5 09 and 510 opened the liquid storage tank 505 and closed the scale liquid storage tank 50 6, the glass frit was removed from the clamp, inverted and rinsed with the test liquid first, and then rinsed with propane and test liquid (synthetic urine). During the flushing, the glass frit must be poured over and the flushing fluid sprayed on the test sample that is in contact with the surface of the glass block dish. After the flushing, the glass frit is used for a second time with -250 ml of test solution (synthetic urine). At the end of the front rinse, the glass frit is again installed in the fixture and the frit surface is flattened. b. Monitoring the performance of the glass frit After each cleaning procedure and each newly installed glass frit, the glass frit must be monitored. The glass frit is installed at a position of 0 cm and 50 ml of test liquid Pour on the surface of a flat glass frit dish (excluding Te f 丨 〇n, ring '0 ring and cylinder / piston assembly), and record the cost of the test fluid dropping 5 mm on the surface of the glass frit dish Time, if this time exceeds 4.5 minutes, then

V. Description of the invention (91) Periodic cleaning must be carried out. C. Periodic cleaning Periodically (see monitoring frit performance above). Thoroughly clean the glass frit to prevent clogging. The flushing flow system is 50% Clorox Bleach in distilled water, acetone, and distilled water. Used to remove bacterial growth) and test liquid'cleaning involves removing the glass frit from the clamp and cutting the connection of the pipe, flushing in the front with the appropriate amount of fluid in the following order (the glass frit has the flushing liquid introduced at the bottom), where The frit is in ', 1.25 ml of distilled water. Placement status: 2. 100 ml C net. 3.250 ml steamed crane water. 4.100 ml of 50:50 (100 ~ 100% / distilled water solution. 5.250 ml of distilled water. 6.250 ml of test fluid. When the performance of the glass frit is located in the fluid flow test standard ( (As mentioned above) When there is no residue on the surface of the glass frit dish, there is a satisfactory cleaning process ^, and the cleaning cannot be performed successfully, the block must be replaced. If the computer is installed to provide a report with the following information: capillary suction height The number of time and the number of grams of ingestion for each specified degree. From this, we can calculate the capillary suction energy absorption of the frit uptake and evaporation loss, and ^ calculate the capillary suction energy absorption when correcting cm, you can calculate Capillary at each height. In addition, the initial effective uptake rate of 200 cm was also calculated based on the 0 rate.

Chapter 96

V. Description of the invention (92) Blank corrected uptake (g) = [blank uptake (g)]-{[blank time (seconds) * sample evaporation (g / hour)] / 3600 (seconds / hour)} capillary suction absorbs energy (&Quot; CSA C &quot;) _ CSAC (g / g) Photo (g)-[Sample time (seconds) * Sample evaporation (g / hour) / 36〇〇 (seconds / hour) _ Blank correction intake (g)) / Sample dry weight (gram) j_〇0 cm initial effective uptake rate ("IEUR") IEUR (g / g / h) = 200 cm CSAC (g / g) / 200 cm sample, This time (seconds) (1 At least two measurements should be taken to record the average uptake of each sample and each modest to calculate the Capillary Adsorption Absorption Energy (CSAC) for a known absorbing member or a known high surface area material. Use these The data can calculate each value: the capillary adsorption and desorption height of X% of 0 cm energy (that is, CSACO), (CSDHx), expressed in cm; the material has absorbed y% of 0 cm energy capillary Adsorption and absorption height (ie CSAC 0), (CSAH y), expressed in centimeters;-a specific height z of wool in grams {fluid} / gram {material} Adsorption νγ Absorption amount (CSAC ζ); especially at zero height (CSAC 〇), and 35 cm, 40 cm, etc. _Capillary adsorption absorption efficiency (CSAE z) at a specific height z expressed in%, is CSAC 0 and CSAC z ratio.

Page 97 V. Description of the invention (93) If the two materials are combined (for example, the first material and the second material are used as liquid storage materials), the materials may be preferred / distributed, and the first

To determine the CSDH value from the first material to the CSDH X value of the first material (and the CSAC value of each CSAE synthetic urine formula Γ and Γ); Company 'synthesis exhibition liter gasification_, 2.G g / L sodium sulfate, 0.85) H2P04, 0.15 g / L (NH4) H2P04, 0.19 g / Human calcium, 〇。 23 g / liter of calcium magnesium, all chemicals are reagents and other 彳 grade 'mouth-forming urine pH of 6.0 to 6.4. Straight capillary testing is aimed at assessing the time required for a fluid front to reach a specific height in a vertical device (that is, against gravity) and the amount of fluid picked up by the material during that time. The principle of this test is to place the sample on a sample holder equipped with a pin electrode. Both functions fix the sample in a vertical position and can generate an electrical timing signal. The fluid reservoir is located on a measuring tool and can be monitored. The ti me dependency of the fluid picked up in the sample caused by the vertical capillaries is not important for this test. It is tested on a commercially available device (EKOTESTER of Ekote Industries, Leitingen, Germany). Data can be processed electronically. The test setup is shown schematically in Figures 3 a and b. The device is basically made of Perspex and contains a fluid reservoir (310) to accommodate a liquid level of 17 mm (311)

Page 98 V. Description of the invention (94) 9 degrees 29 grams-test county test fluid and-sample holder (320), this storage tank is placed on 0.1 grams fine as needed (315) (such as made by Mettler GmbH) Model PM3 000, it is connected by contact (316). This gauge can be connected to-electronic data collection = fixture is mainly one of i G cm width (33 ()), i 5 — + degrees (not shown) Perth Wear a plexiglass plate, and extend the liquid surface in the upward direction (332) during the test to ensure that it enters the bottom edge of the 12 mm sample holder in the test fluid f surface (321) during the test (321). One of the repeatable generations of) = "medium" sample loading: the recurrence is positioned in the precise vertical direction (that is, the direction of two forces). The sample holder (32) is also equipped with nine cathode electrode pins (6), which are arranged in three rows from the bottom edge (321) of the sample holder at a distance of 95 mm from the center of the eye and 136 mm (334, 335, 336). There are three electrodes in each row, which are evenly separated from each other by a distance of 28 mm = the electrodes on the longitudinal edges (322) are separated from these edges by a distance of _ centimeters &lt; 038), and the electrode pins have a length of about 10 mm The diameter of the work piece is about 5 mm in diameter and has a slight tip to facilitate the application of the sample. The electrode pin is made of metal. The other anode electrode pin (327) is adjacent to the middle cathode electrode pin in the bottom row by 5 mm. The anode (3 27) and nine cathodes (32 6) are connected (schematically shown in Figure 3 &amp;) (328), so that the two cathode pins and anode pins are connected to a timing device (341), and the anode and ^ can be monitored. The time that the circuit between the cathodes is closed, such as by an electrolyte test fluid in a wet test sample located between one of these electrodes. Different from the above general procedures, the location and testing of this equipment are located in a temperature control hood set at 37 ° C and not deviating more than 3 ° C. The test fluid is also manufactured

V. Description of the invention (95) Prepared in a temperature controlled pool of 37 ° C for a period of time sufficient to allow the fluid to have a fixed temperature. The test fluid is injected into the storage tank (31 0) so that the fluid surface (3 丨 2) is flush with the required height (311) ', for example, adding a predetermined fluid amount such as 9273 g (+ / _) i g. The test samples were balanced under laboratory conditions (as described above), and were placed in a 37 ° C environment immediately before testing, and the sample card diameter was measured before testing as follows. Test the sample to avoid possible pressure on the cutting edge. Any convenient device that shrinks the effect is cut into a size of 10 cm x 5 cm, such as a cutting knife or sharp blade and scalpel from jdc company, or less good such as sharp scissors . The test sample is carefully placed on the sample holder so that the edges coincide with the (1 bottom and side edges (321 and 322) of the sample holder, even if it does not protrude beyond the sample holder plate. In a stressed configuration, that is, it should not be wavy and not subject to mechanical tension, 'the Perspex plexiglass plate must be careful so that the sample only contacts the electrode pins directly and does not contact the fixture. The sample holder (320) is then placed in a The test fluid storage tank (310) is entered in the vertical position, so that the sample holder (32) and the test sample are accurately immersed in the fluid to a depth of 12 mm (3 3 3). As a result, the electrodes will now have different levels for the fluid level (312). 44mm, 83mm, and 124mm distances (343, 344, 339) 'Due to the immersion of the sample holder does change the reading of the measuring tool (315), the tare value is determined in advance by the insertion of the sample holder with the sample- Such as 6 grams., Can understand the 'sample clamp (32 〇) and test samples in a non-tilted configuration must be very clear and quickly positioned on one side, because the material contact with the fluid ^ began to inhale and produce capillary effects, can Means for fixing (325) the sample insertion of a jig (35〇) EK〇TESTER as part of, but also

Page 100 V. Description of the invention (96) Fast and non-tilted fixation can be achieved with other devices. Monitoring gage readings as a function of the time immediately after the sample is positioned, it is known to advantageously connect the gage to a computerized device (34), such as EKOTESTER as part. Once Liu Zhao reaches the first row and closes the electrical connection between the anode (3 2 7) and the cathode (3 2 6), these times can be recorded by any timing device. EKOJESTER's timing unit (341) is a convenient example. Although further data processing can be performed for each of the two time values in a row, the further information is about the average of all three electrodes in each row, and does not deviate by more than about (+/-) 5% from the average. 〇 Therefore, the data generated are: the time dependent variable of the fluid picked up by the sample after immersion, and the amount of time it takes for the fluid to reach a certain height. From above, at each of these three altitudes, two important values can be read and recorded: the first term is the time in seconds that the fluid reaches each altitude, and the second term is &quot; cumulative flow &quot; for each degree, Divide—the amount of fluid picked up by the sample when this height is reached—divide this time by the cross-sectional area defined by the card diameter measurement and the sample width of 10 cm. ,

Chapter 101

Claims (1)

六 、 Scope of patent application 1. An absorptive structure including a first region and a second region in liquid communication with the first region, characterized in that the first region includes a height of greater than 0 when 12.4 cm 0 75 g / cm² / s with a cumulative flow of material, and the second region contains materials that meet at least one of the following requirements: (a) at least 15 g / g of 35 cm capillary absorption energy (CSAC 35 ); And / or (b) at least 15 g / g of capillary absorption energy (CSAC 0) of 0 cm, and at least 55% of capillary absorption efficiency of 40 cm (CSAE 40); and / or (c) Capillary adsorption absorption height (CSAH 50) of at least 50% of the energy of 0 cm of the absorption height of 35 cm. 2. For the absorptive structure in the first scope of the patent application, the material contained in the first area has a height of 12.4 cm and a capillary time of less than 120 seconds. 3. The absorptive structure according to item 1 of the patent application range, wherein the material contained in the second area is (a) at least 20 g / g of CSAC 35. 4. If the absorbent structure of item 1 of the patent application scope, wherein the material contained in the second region is (a) at least 15 g / g of CSAC, one of the actual CSDH 90 of the first material. 5. The absorptive structure according to item 1 of the patent application scope, wherein the material contained in the second region is (a) at least 20 g / g of CSAC 0 and at least 50% of CSAE 40. Page 102 401292_ VI. Scope of patent application 6. For example, the absorptive structure of the scope of patent application No. 1 in which the material contained in the second area is (b) one of at least 25 g / g CSAC 0 and at least 50% CSAE 40. 7. The absorptive structure according to item 1 of the patent application scope, wherein the material contained in the second area is (b) at least 35 g / g CSAC 0 and at least 50% CSAE 40. 8. If the absorbent structure of the first patent application scope, the material contained in the second area of the kiosk is (b) at least 15 grams / gram of one CSAC 0 and at least 65% of CSAE 40. 9. If the absorbent structure of item 1 of the patent application scope, wherein the material contained in the second region is (b) one of the actual CSDH 90 of at least 15 g / g CSAC 0 and at least 55% of the first material CSAE. 10. The absorptive structure according to item 1 of the scope of patent application, wherein the material contained in the second area is (c) CSAH 50 of at least 45 cm. 1 1. The absorptive structure according to item 1 of the patent application scope, wherein the material contained in the second area is (c) CSAH 50 of at least 60 cm. 1 2. The absorptive structure according to item 1 of the patent application scope, wherein the material contained in the second area is (c) CSAH 50 of at least 80 cm. 1 3. The absorptive structure according to item 1 of the scope of patent application, wherein the material contained in the first region has a capillary time of less than 50 seconds. Page 103, 4〇1 抑 2 *. * --- VI. Patent Application Scope 1 4. The absorptive structure according to item 1 of the Patent Application Scope, where the material contained in the first area is at a height of 12.4 cm For this preferential fluid distribution direction, there is a cumulative flow rate greater than 0.120 g / cm² / s. 1 5. The absorptive structure according to item 1 of the scope of patent application, wherein the capillary time of the material contained in the first region is less than 80% of the vertical direction of the priority fluid distribution direction to a height of 8.3 cm. Capillary time and one of the preferred fluid distribution directions for a height of 12.4 cm; a cumulative flow rate greater than 0.120 g / cm2 / s. 16. The absorptive structure according to item 1 of the patent application scope, wherein the first region comprises a fibrous material. t 1 7. The absorbent structure according to item 16 of the patent application, wherein the fibrous material included in the first region contains chemically hardened cellulose. 18. The absorptive structure according to item 16 of the patent application, wherein the fibrous material included in the first region contains synthetic fibers. 19. The absorptive structure according to item 16 of the patent application, wherein the fibrous web included in the first region is mechanically treated after the web is formed. 20. The absorptive structure according to item 1 of the patent application, wherein the first region comprises a foam material. 2 1. The absorptive structure according to item 20 of the patent application scope, wherein the polymer / foam material is a water-soluble oil emulsion obtained from the in-plane phase. 2 2. The absorbent structure according to item 1 of the patent application, wherein the second region comprises a high surface area material. 2 3. The absorptive structure according to item 22 of the patent application scope, wherein the high surface area material includes microfibers. Page 104 —404222__ 6. Scope of Patent Application 2 4. The absorbent structure according to item 22 of the scope of patent application, in which the high surface area material is an open cell hydrophilic foam. 25. The absorbent structure according to item 24 of the patent application, wherein the open-cell hydrophilic foam is a polymer foam obtained from a high internal phase water-soluble oil emulsion (Η I PE). 2 6. The absorptive structure according to item 24 of the patent application scope, wherein the open-cell hydrophilic foam is collapsed. 27. The absorptive structure according to item 24 of the patent application, wherein the open-cell hydrophilic foam is in the form of particles. 2 8. The absorptive structure according to item 1 of the patent application scope, wherein the second region C region comprises a hydrogel forming material. 29. The absorbent structure according to item 28 of the scope of patent application, wherein the hydrogel forming material is present in at least 15% of the total weight of the second region. 30. The absorptive structure according to item 28 of the scope of patent application, wherein the hydrogel forming material is present in the second region with a total weight of not more than 75%. 31. A disposable absorbent article comprising at least one absorbent structure as described in item 1 of the patent application scope. 3 2. The disposable absorbent article according to item 31 of the patent application scope, wherein the absorbent structure includes at least two second regions and domains which are not in direct contact with each other. 3 3. The disposable absorbent article according to item 32 of the scope of patent application, wherein the at least two second regions are longitudinally spaced from each other and are separated by at least a portion of the crotch region as defined herein. 3 4. If the disposable absorbent article in the scope of patent application item 1 is used as a baby Page 401 292 Chapter 106