TW434003B - Absorbent article with improved combination of skin feel and fluid handling - Google Patents

Abstract

The present invention relates to absorbent articles such as sanitary napkins, panty liners, diapers, adult incontinence pads and briefs, and the like having an improved combination of skin feel and fluid handling properties, such as fluid acquisition and retention. This improved combination is provided by structures where the absorbent core has a high capillary pressure which helps the core to rapidly acquire bodily fluids deposited on the body surface of the absorbent article and to retain such fluids after they have been acquired. Absorbent gelling materials with reduced gel blocking are a preferred core component that aids in fluid retention by providing an osmotic fluid retention mechanism. The topsheets of the present invention cooperate with the core by being both fluid permeable and providing a barrier to rewet of acquired fluids. The topsheet also has a multiplicity of fibrils that create the body surface of the absorbent article. These fibrils are disposed at a density and have dimensions and mechanical properties such that the body surface has a soft, velutinous body feel.

Description

A7 434003 ___B7 V. Description of the invention (1) {Please read the notes on the back before filling this page) This is the application serial number 60 / 128,267, which was applied by Walker and others on April 8, 1999. Partial serial case, which is a serial case of application serial number 08 / 832,715, which was applied by Ouelette and others on April 11, 1997 and is still under review, which was filed on May 31, 1995 and has been abandoned. Serial No. 08 / 442,935 is a serial case filed on October 20, 1994 and has been abandoned. Serial No. 08 / 326,571 is a partially filed case, which was filed on June 30, 1994 and has been abandoned. Part of the serial number of the application serial number 08/268, 404. FIELD OF THE INVENTION The present invention relates to absorbent articles such as sanitary napkins, panty liners, diapers, adult incontinence pads and briefs, which have a skin feel and fluid treatment properties such as fluid retention. Combination of improvements. BACKGROUND OF THE INVENTION Absorbent articles printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs, such as diapers, tampons, panties, adult incontinence pads and briefs, hemostatic forest balls, etc. are well known and widely used Used to absorb body emissions such as urine, feces and menses. Typically, a disposable absorbent article contains a liquid-permeable bodyside liner and an absorbent core underneath. The absorbent core can be sandwiched between the body side liner and the liquid-impermeable back layer, which is used to prevent clothing and skin from contacting the absorbed body emissions. A typical upper body side liner may contain a skin layer such as a perforated shaped film or a non-woven skin layer. The body-side lining may also contain multiple layers, such as a surface layer in liquid communication with a second surface layer (which is sometimes also referred to as a dispersion layer, surge management layer, core layer, or similar name). This paper scale applies the Chinese national standard < CNS) A4 burner (210 X 297 public love) Printed by Shelley Consumer Cooperative of Intellectual Property Bureau of the Ministry of Economic Affairs 434003 V. Description of the invention (2) The location meets the user's needs for fluid treatment, The absorbent article must be able to quickly remove deposited body emissions (acquisition) from the body-contacting surface of the absorbent article and maintain this acquired fluid away from the body surface (retain or prevent rewetting). The fluid handling performance of an absorbent article typically represents a balance between the need to acquire and the need to retain (to prevent rewetting). Usually, the nature of the core and the surface affect each other to determine the balance. The user of the absorbent article also has other requirements that must be met to the greatest extent possible. For example, the body-contacting surface of an absorbent article should be as gentle as possible on the skin. Skin mildness includes properties such as softness, compressibility, no access to fluids, skin, no irritating compounds, and no occlusion of the skin, which can cause heat and sweat. For those who use menstrual products, it is also important that the menstruation that has been absorbed by the core is as invisible as possible. Although some of these properties are core performance requirements, they are more related to the performance of the surface layer. The core of a typical absorbent article described above has two basic requirements: draining the fluids deposited on the surface and directing these fluids to the absorbent core for storage, and resisting the previously caused by pressure on the core or article as a whole Subsequent release of the absorbed fluid (that is, "extrusion" of the core that avoids re-wetting the body surface). Other considerations, such as the overall capacity, thickness, and hardness of the absorbent core, are better for the design of an absorbent article. The very important 0 is suitable as a core component of a wide range of woven fabric structures known in the art, and many of them have attempted to provide high capillary pressure and other desirable properties. For example, U.S. Patent Nos. 5,009,650 and 4,699,619 are series -5- This paper size applies to China Gujia Standard (CNS) A4 specification (210 X 297 public love) ----------- K Pack ί丨 1 丨 丨 丨 Order --------- line ((锖 W read the note on the back of the father's item on the back before filling this page) Member of the Intellectual Property Bureau of the Ministry of Economic Affairs ΗConsumption cooperation 钍 Printing 4340 0 3 A7 ____B7__ 5 3. Description of the invention (3) Issued to Bernardin at the same time. Bernardin's device combines a layer of mainly softwood pulp fibers into a layer of mainly hardwood pulp fibers. However, Bernardin's device does not reach the high capillary pressure and Benefits of fluid retention. In addition, Bernardin's device cannot spread superabsorbent objects throughout the layer. The use of 20% woven fabric to improve retention properties has not been described. The surface layer of the absorbent object is preferably capable of rapidly depositing the fluid. The surface that passes through it (that is, the surface layer should be able to show high fluid penetration). In addition, once the fluid has passed through the surface layer, it should no longer flow back to the surface of the liner (that is, the surface layer should prevent rewetting). The preferred surface layer is also soft , Comfortable, and as much as possible The user's skin is non-irritating. This technique is a continuous attempt to improve the properties of the surface layer to deal with this demand. For example, a method known in the art has used a surface layer containing a formed porous thermoplastic film. Common Transfer April 3, 1982 U.S. Patent No. 4,342,314 issued to Radel et al., Which is hereby incorporated by reference, discloses a representative shaped film of this type. This fabric uses capillary fluid transport to direct fluid away from the surface (Wearer-contact) to enter and pass through the fabric through the three-dimensional capillaries generated in the material, and then into the absorbent structure underneath. In order to address consumer concerns about the appearance and feel of a plastic-like shape, shaped holes have been developed Thermoplastic film fabric, which additionally includes microscopic surface structures (microstructures) and / or microscopic holes (microvoids) to further enhance the visual and tactile impression of this fabric β Representative shaped films of this type are disclosed in Commonly Assigned US Patent Nos. 4,463,045 issued to Ahr et al. On July 31, 1984 and Curro et al. On December 16, 1986 The scale is applicable to the Chinese Standard (CNS) A4 (210 X 297 mm) ----------- installation ----- ti --- order --------- Line (.. < please read the note on the back before filling out this page) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 4 3 4 0 0 3 * A7 ____B7____ V. US Patent No. 4,629,643 for Description of Invention (4) In the No., its disclosure is here for reference. Although the surface layer of this shaped film has been widely commercially successful, many users still feel that it is plastic-like and not particularly soft. Β Other know-how The method is to use a non-woven fabric as the surface material. For example, compared with the aforementioned mentioned film surface material, non-woven materials with desired skin tactile benefits are described in the published Japanese patent application published on May 9, 1995 in the name of Kao Corporation No. 7-119012. Although the weave properties of this non-woven surface layer may have certain desired skin tactile benefits, non-woven materials have been widely known to lack protection against rewetting. One method of combining the benefits of formed film materials and nonwoven materials is to use a fibrous material laminated or laminated on the formed film. A representative surface structure of this type is disclosed in the Legal Invention Registration H1670 published on July 1, 1997 in the name of Aziz et al., Which discloses a non-woven material laminated on a formed film material, and 1996 U.S. Patent Application No. 08 / 744,892 filed by Sugahara on November 8 and WO93 / 09744 published on May 27, 1993, which describe a central area composed of a formed film and a non-woven material stacked on top of each other. The structure of the side outer garden area on the film, each of which is incorporated here for reference. In addition to transmitting through the formed film, such fabrics also exhibit capillary fluid transport properties through three-dimensional capillaries generated in the space between the fibers, as well as directing fluid away from the surface that the wearer contacts and toward the underlying absorbent structure. Due to the fibrous properties of the surface, this fabric can show aesthetic appearance, cloth-like surface appearance, and tactile impression. However, it will be understood that this fabric will be -7- this paper size applies to China National Standard (CNS) A4 (210 X 297 mm) ------------ * it II f I ^ --------(Please read the notes on the back before filling out this page) 434003 A7 Printed by the Shellfish Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs __B7___ V. Description of the invention (5) The resulting surface layer is more expensive because of the extra material used to make the laminated fabric and the extra processing steps required for this manufacture. In addition, the fabric is still insufficient in fluid treatment, because the fluid can be placed in the small capillaries between the woven dimensions of the non-woven portion, so that it is still close to the body contact surface. Jiyi has also tried to provide the fluid treatment benefits of the three-dimensional capillary mentioned above and reduce the plastic-like feel of this formed film. It uses a porous (non-formed) film combined with the underlying non-woven layer to provide a series of The rising top separated by the valley. This structure describes U.S. Profit No. 5,536,555 issued to Zelazoski et al. On July 16, 1996 and PCT Application No. WO 97/02133 published on January 23, 1997 in the name of Kimberly-Clark Corporation. Although this structure can reduce the contact area between the surface material and the wearer's skin, the film material still contacts the wearer with the plastic-like feel formed. This material also has the shortcomings in the price of the laminated materials mentioned above. I " U.S. Patent No. 5,643,240 issued to Jackson et al. On July 1, 7 describes a body-side liner (surface layer) for an absorbent article having a multilayer structure with perforated films laminated on a non-woven fabric, wherein the film layer The nature with non-woven fabrics is that when this layer is used in combination, the absorbent article using this body side layer can have good penetration and good rewetting. However, when the claimed penetration rate of the patented absorbent article is compared with the rewet wetted article compared with the absorbent article with the conventional technique of forming a film surface described in the reference example, the conventional article is compared with the patented article. The properties of the range objects are very similar. In addition, 240 patents for physical contact —8-»< Please read the notes on the back before filling this page)

-· Hl · LI l · I Order ---- ----- Line p This paper size is applicable to National Standard (CNS) A4 (210 X 297 mm) 4 3 40 0 3 '^ A7 _ B7 Printed by Shelley Consumer Cooperative of Intellectual Property Bureau of the Ministry of Economic Affairs. 5. Description of the invention (ο The surface is a formed film, so the physical touch defects of the above-mentioned formed film will still exist. Therefore, its combined and improved fluid processing characteristics and improvements There is a continuous need to improve the physical feel of absorbent articles. As pointed out previously, the surface layer is related to the characteristics of the absorbent core. For example, a core that exhibits high capillary capacity will also have an increase in the ability to drain fluid from the surface layer. The trend. Therefore, it helps the surface layer to suppress rewetting. Therefore, the design of the entire absorbent article should include several compromises in design considerations. For example, an absorbent core with high capillary pressure and an improved balance of skin feel and fluid handling performance The surface layer can be combined as described. In other words, by using the core of the present invention and the surface layer of the present invention, it is possible to foresee an absorbent article having both improved skin feel and fluid treatment properties. SUMMARY OF THE INVENTION The present invention relates to absorbent articles such as sanitary napkins, panty liners, diapers, adult incontinence pads and briefs, etc., which have skin feel and fluid treatment properties such as fluid acquisition and retention Improved combination 6 This improved property is achieved by combining the improved core with the improved surface layer. A particularly preferred embodiment of the present invention has a droplet acquisition time of less than about 35 seconds and a wear time of less than about 55 seconds. Penetration time, rewetting below 30 mg, and panel softness scores between 30 and 60 PSU. These properties are achieved by combining an improved absorbent core structure with a surface layer designed to have improved skin feel and fluid handling. 》 In a preferred embodiment of the present invention, the improved core system contains various hardwood pulp fibers, various softwood pulp fibers, and superabsorbent articles. Two types-9-This paper size applies to Chinese National Standard (CNS) A4 Specifications (210 X 297 mm) (Please read the precautions on the back before filling out this page) -I! I --— II -----— II--XZ Install ih ί — Order --- --- -Line (4340 0 3 A7 economy Printed by the Ministry of Intellectual Property Bureau Consumer Work Cooperative —---- B7 V. Description of the invention (7) Fibers and superabsorbent objects are essentially homogeneous mixtures in air-laid fabrics. Hardwood pulp The fiber preferably contains eucalyptus fiber, and the eucalyptus fiber preferably comprises from about 0% to about 50% of the fabric weight. The softwood pulp fiber preferably contains southern softwood kraft fiber, and the weave dimension preferably accounts for the fabric weight. It is from about 20% to about 60%. In addition, wood pulp weave can also be combined with two-component thermoplastic weave. The preferred surface layer according to the present invention has improved skin feel and excellent fluid treatment properties. The surface layer is fluid Permeable, but provides a barrier to repeated wetting. The surface layer according to the present invention preferably also has various kinds of fibers, which are guaranteed to protrude upward from the surface of the surface layer material from which the fibers underneath originate to produce a soft, velvety surface. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a plan view of a preferred embodiment of an absorbent article in the form of a sanitary napkin, which includes an absorbent core and a surface according to the present invention. FIG. 2 is a cross-sectional view taken along line 2_2 of the preferred embodiment of the present invention shown in circle 1. FIG. FIG. 3 is a cross section 沿着 along line 3 · 3 of the preferred embodiment of the present invention shown in FIG. 1. FIG. Detailed Description of the Invention Absorbent Articles The present invention relates to absorbent articles having an improved combination of skin feel and fluid handling properties. The absorbent articles described above, such as sanitary napkins, diapers, adult incontinence pads, and short inner Pants, etc., usually contain three basic structural components. -This composition is essentially impervious to liquid tanks. This paper size applies to the Chinese National Standard (CNS) A4 specification (210 x 297 mm 1 '-I I --- II 1 .- — II * l · I (Please read the note ^ Φ on the back before filling this page) · — l · 丨 Order ----

----- Line C Du Du printed by the Intellectual Property Bureau of the Ministry of Economy 4340 0 3 A7 B7 V. Description of the invention (8). An absorbent core, such as any of the structures of the invention described herein, is disposed on the back layer. On this absorbent core and connected to the back layer at least at about the periphery of the absorbent article is a liquid-permeable surface. At least one acquisition component (sometimes also referred to as a fluid distribution layer) can be selectively located on the surface layer and the absorbent core. between. The present invention uses a novel combination of a surface layer and an absorbent core to provide an absorbent article with the aforementioned improved combination of flow treatment and surface feel. Absorbent articles of conventional skill may provide either of these in an article, rather than both. In particular, the absorbent article of the present invention has rapid fluid acquisition (low penetration and droplet acquisition time) and low rewetting (low rewetting amount) combined with excellent softness. Figure 1 below is a comparison of fluid handling properties and softness of several specific embodiments of the present invention with examples of absorbent articles of conventional art. These examples clearly illustrate the improved performance of the absorbent article of the present invention. As mentioned previously, ' the absorbent articles of the present invention generally provide rapid access to fluids deposited in the body upon which they are deposited. Although fluid acquisition can use a variety of test fluids for evaluation in a variety of ways, the methods for droplet acquisition time and liquid penetration time in the Analytical Methods section are believed to provide useful information about the ability of absorbent objects to rapidly acquire fluids in the body . These two methods determine the time required for the sample to acquire a controlled amount of fluid that rapidly deposits on the body surface of the sample. Therefore, a suitable absorbent article according to the present invention has a droplet acquisition time of less than about 35 seconds, preferably less than about 30 seconds, more preferably less than about 25 seconds, even more preferably less than about seconds, And the best is less than about 15 seconds. Similarly, 'appropriate absorbent articles according to the present invention have a liquid penetration time of less than about 60 seconds, preferably less than about 55 seconds and more preferably less than about -11- This paper size applies to Chinese national standards (CNS ) A4 specification (210 X 297 public love) ----------- i I l · lf L -1 ^ ---- I I --- ί Please read the precautions on the back before filling in this Page) A7 ^ 4340 03 B7 V. Description of the invention (9) 50 seconds. (Please read the precautions on the back before filling in this page.) The absorbent article according to the present invention can also inhibit the movement of the absorbed body fluid from the center of the absorbent article back to when it is exposed to the force caused by the action of the wearer. Its body surface to minimize rewetting. The rewetting test described in the analytical method section below is measured in the laboratory of the return fishing. The test describes a method for determining the amount of the test fluid that is absorbed back to the surface of the sample after it has absorbed a controlled amount of fluid and then carries a controlled pressure. When evaluated according to this method, a suitable absorbent article according to the present invention has a rewetting of less than about 40 mg, preferably less than about 30 mg, and more preferably less than about 20 mg. The absorbent article of the present invention also has a desired skin feel. Without being limited by theory, it is believed that the main contribution to the broad tactile sensation of the skin of the absorbent article of the present invention is the effect between the skin of the wearer and the body surface of the absorbent article. As detailed below, it is believed that the surface of the body has a soft, suede-like texture and a compressible, low-density body-contacting surface due to various weaves protruding from the underlying surface material structure. Printed by the Industrial and Commercial Consumers Association of the Intellectual Property Bureau of the Ministry of Economic Affairs Although the present invention is suitable for use in all absorbent articles including baby diapers and adult incontinence products, it will be used in the best specific embodiments shown in 圏 丨 for menstruation Sanitary pads and sanitary napkins will be described below. The term "sanitary napkin" as used herein refers to an absorbent article worn by a woman near the genitals, usually outside the genitals, and is used to absorb and retain menstrual fluid and other vaginal discharge from the wearer's body (for example, Blood, menstruation, and urine) β-labial devices that exist inside and outside the vestibule of the wearer are also included in the scope of the present invention. The name used here, genitals "means visible from the outside> 12- This paper size applies to the Chinese National Standard (CNS)> A4 (210 X 297 male; A7 434003 · B7____ V. of the description of the invention (1〇) Female vulva. However, it should be understood that the present invention can also be applied to other feminine or menstrual sanitary pads that line the panties, or other absorbent articles such as incontinent sanitary pads, tampons, and the like. Circle 1 is the flat face of the sanitary napkin 20 of the present invention in its flat state, and the structure of a part of it is removed to more clearly show the structure of the sanitary napkin 20. The part of the sanitary napkin 20 facing or contacting the wearer 20A is Point to the viewer. As shown in Figure i, the sanitary napkin 20 preferably contains a liquid-permeable surface layer 21, a liquid-impermeable back layer 23 connected to the surface layer 21, and the present invention located between the surface layer 21 and the back layer 23. Absorbent core 25. The sanitary napkin 20 described in FIG. 1 is a simplified absorbent article that can represent a sanitary napkin before being placed on a wearer's underwear. However, it should be understood that the present invention is not limited to the drawings The sanitary napkin of the specific type and shape shown in 1. The sanitary napkin 20 has two surfaces, a body-contacting surface, or a body surface '' 20A and a surface of a garment. The sanitary napkin 20 shown in FIG. Observe the direction of the body surface. When the sanitary napkin 20 is worn, the body surface is worn in the manner close to the wearer's body, and the surface of the garment is on the opposite side and placed in the manner of the clothing adjacent to the wearer. It has two central lines, a longitudinal central line "l" and a transverse central line "T, '. As used herein, the term" longitudinal central line "refers to a line, axis or direction in the plane of the sanitary napkin 20, When a sanitary napkin is worn, it is usually aligned with a vertical plane that divides the standing wearer into left and right halves (for example, approximately parallel). The term "transverse," or "lateral," as used herein, may Interchangeable, it refers to a line, axis or direction in the plane of the sanitary napkin 20. It is usually perpendicular to the longitudinal direction. -13- This paper size applies to the Chinese Standard (CNS) A4 (210 X 297) ) ~ ------ 11 I 1--install i-rl --.-- Order-------- line "(Please read the notes on the back before filling out this page) Printed by the Consumer Property Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs

V. Description of the invention (11) (Please read the note on the back before filling in this page) ® also shows that the sanitary napkin 20 has a periphery 30 defined by the outer edge of the sanitary napkin 20, of which the longitudinal edge (or " The side edge ") is marked as" and the end edge (or "end is marked as 28 ^ In 圏! In one of the inserted embodiments, the sanitary forest 20 is preferably symmetrical about the longitudinal and transverse centerlines, Although asymmetric to one of the central lines is also within the scope of the present invention. The tampon 20 preferably includes side edge flaps, or flaps, 34, which are folded along the crotch of the wearer's underpants. The side flange 34 can be used for several purposes, including, but not limited to, preventing the wearer's underwear from being soiled and fixing the sanitary napkin to the wearer's underwear. Although the surface layer, back layer, and absorbent core can Assembled in a variety of known configurations (including so-called "tube" products or side flange products), but the preferred sanitary ladder configuration is generally described in US Patent No. 4,950,264 issued to Osborn on August 21, 1990 , Issued to DesMarais on January 10, 1984 US Patent No. 4,425,130, US Patent No. 4,321,924 issued to Ahr on March 30, 1982, and US Patent No. 4,589,876 issued to Van Ti 丨 burg on August 18, 1987. Intellectual Property Office, Ministry of Economic Affairs Printed by an employee consumer cooperative Figure 1 shows a preferred embodiment of a sanitary napkin 20, in which the surface layer 21 and the back layer 23 are generally longer and wider than the absorbent core 25. The surface layer 21 and the back layer 23 extend beyond the absorbent core 25 Edge, so as to generate not only a part of the periphery but also the side wing. As shown in circle 1, the back layer 23 and the surface layer 2 are placed next to the surface of the garment and the body of the sanitary napkin 20, respectively, and preferably each other They are connected to form the outer periphery 30. For example, the back layer 23 and the surface layer 21 can be combined with each other by the uniform continuous layer of the adhesive, the layer with the adhesive added, or the arrangement of the independent straight lines, spirals or points of the adhesive. Satisfactory adhesive is manufactured by St. Paul, Minnesota Η B. Fuller Corporation, called -14- This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) 434003 A7 B7 Member of Intellectual Property Bureau, Ministry of Economic Affairs Printed by the Industrial and Consumer Cooperatives 5. Description of the invention (12) HL-1358 or H-2031 »In addition, the surface layer 21 and the back layer 23 can be bonded by heat, pressure, ultrasonic, power machinery Any other suitable method known for joining the top and back layers to combine with each other. Figures 1-3 show the individual components of the main portion 22 of the sanitary napkin 20 of the present invention. The main portion 22 of the sanitary napkin contains at least three Main ingredients: These include a liquid-permeable surface layer 38, a liquid-impermeable back layer 40, and an absorbent core 42 placed between the surface layer 38 and the back layer 40. It is preferable that the main part 22 of the sanitary napkin 20 also contains at least one selected acquisition ingredient 44. The acquisition component 44 may be a separated component placed between the surface layer 38 and the absorbent core 42, or it may contain a part of the composite surface layer or a part of the absorbent core 42. Surface layer Surface layer 38 is a liquid-permeable component that allows liquids, such as menses and / or urine, to easily pass through its thickness. The surface layer 38 is preferably close-fitting, soft to the touch, and non-irritating to the wearer's skin. As mentioned above, the preferred surface layer according to the present invention has excellent skin feel and fluid treatment properties. In a preferred embodiment of the present invention, at least a part of the body surface of the surface layer 38 is hydrophilic so that the liquid can pass through the surface layer more easily. This reduces the likelihood that body fluid will flow out of the surface layer rather than into the surface layer and be absorbed by the absorbent core 42. The surface of the body of the surface layer 38 can be treated with a surfactant to make it hydrophilic. Suitable methods for treating the surface layer with a surfactant are described in U.S. Patent No. 4,950,254 issued to Osborn and U.S. Patent No. 5,520,875 issued to Wnuk et al. On May 28, 1996. The special best surfactant material is described in the joint review, which was filed on April 8th, 1999 by Stone, which is a joint transfer of US patent application No. -15-This paper size is applicable to the national standard < CNS) A4 specification (210 X 297 mm)------— — — — — — — ullll · — ^ ---— — — — _ * line ((Please read the notes on the back before filling this page) 4340 03 Printed by the Intellectual Property Bureau's Tooling Consumer Cooperative A7 B7 V. Invention Description (13) 09 / 287,986. The preferred surface layer 38 according to the present invention is by having a body flow deposited on the body surface 20A of the sanitary napkin 20 The hips can easily pass through the surface layer 38 to be absorbed by the absorbent core 42 to achieve the desired balance of skin feel and fluid handling properties. This better surface layer also provides barriers when the sanitary napkin is exposed to the wearer. The force caused by the action can inhibit the absorbed fluid from moving in the opposite direction to minimize rewetting. The surface layer also has the desired skin feel properties provided by various fibers, which are fibers from the bottom Knot of surface material from which it originated Protrudes upwards to provide essentially uniform softness and a smooth skin feel. Suitable skins 38 can be made from a wide range of materials, such as woven or non-woven materials: such as perforated formed thermoplastic films, perforated plastic films, and Polymeric substances of oxygen reconstituted thermoplastic films; reticulated foam latex; reticulated thermoplastic films; and thermoplastic thin cotton fabrics. Suitable woven or non-woven materials may contain synthetic fibers (such as the polymerization of polyester, polypropylene, or polyethylene fibers) Fiber). This suitable surface layer may also be a composite structure composed of a formed thermoplastic film layer and a fiber layer or two subsequent formed thermoplastic film layers. As mentioned above, this preferred surface layer 38 is liquid-permeable. To provide rapid passage of the deposited body fluid to be absorbed by the core 42. One way to achieve this fast passage is to provide various holes through the surface. This perforated surface is described in more detail in the previous section U.S. Patent Application Serial No. 08 / 832,715, which describes the formation of micro-spaced materials with low surface energy deposited thereon And on December 21, 1998, applied by Curro et al. -16- This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) {Please read the precautions on the back before filling this page> h,装 .ί — — order --------- line (. 4340 0 3-A7 B7 V. Description of the invention (14) < Please read the notes on the back before filling this page) No. 09 / 217,736, which describes a laminate of a perforated non-woven fabric and a formed perforated thermoplastic film. The body contact surface is preferably provided with several small, discontinuous, spaced areas with low surface energy materials deposited. of. The deposit has a surface energy that is lower than the surface energy of the underlying polymer matrix, which results in a surface energy gradient between the deposit and the underlying matrix. This surface energy gradient will apply a force to the fluid in contact with the body-contacting surface of the surface layer to direct the fluid away from the body-contacting surface and pass through the surface layer to be absorbed by the core 42. This surface deposit is described in more detail in U.S. Patent No. 6,025,049, issued to Ouelette et al. On February 15, 2000. Printed by the Intellectual Property Bureau of the Ministry of Economic Affairs and the Consumer Cooperative, although the surface layer 38 may have a rapid passage (ie, the fluid moves quickly from the body surface 20A of the sanitary ladder 20 to the core 42), but for the purposes of the present invention, an appropriate surface layer 38 can inhibit It is also important to re-wet the fluid obtained. As is well known, the action of the wearer will apply a force to the absorbent article, which will cause the fluid to move from the core toward the body surface of the article, and the fluid will then wet the body surface. Rewetting can be inhibited by providing a barrier to the backflow of this fluid to the body surface. This barrier can take many forms. For example, the structure described in U.S. Patent No. 4,342,3 14 mentioned in the previous fan uses a capillary size to partially inhibit the backflow of fluid. In addition, the disclosed forming membrane fabric has a certain resistance to the shear force caused by the movement of the body and can provide some separation between the surface of the body and the top of the absorbent core. Other methods of inhibiting rewetting are to provide a surface chemical barrier to the countercurrent of the fluid. The surface energy gradients disclosed in the aforementioned U.S. Patent No. 6,025,049 and the aforementioned U.S. Patent Application Serial No. 08/8 3 2,7 15 are believed to be capable of rewetting -17- This paper is applicable to China National Standard (CNS) A4 (210 X 297 mm) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 434003 A7 __B7__ V. Description of Invention (15) Provide chemical barrier on this surface. In addition to the fluid treatment properties mentioned above, the watch of the present invention has the desired skin feel. As mentioned previously, it is believed that the desired skin-wide touch originates from the existence of various filaments, which protrude upward from the surface of the surface material from which the underlying weaving silk originates. This weave can create a soft, velvety surface that contacts the wearer's body and enhances the skin's touch. Depending on the structure of the surface layer 38, this filament may contain micropores as discussed in the aforementioned U.S. Patent No. 6,025,049 or portions of fibers of a non-woven structure that may extend the entire structure upward. This softness can be easily detected by tactile evaluation. As clearly shown in Examples 1 and 2, 'When the layer 38 according to the present invention is used to evaluate the softness using the panel softening method in the analysis method section described below, the rating level of the surface layer 38 of the present invention is Very high "• An absorbent article using the surface layer 38 according to the present invention has an answer panel softness score (psu) of about 30 and a softness rating between about 60 psu is appropriate. A softness rating between about 35 PSU and about 60 PSU is preferred. Softness is better between about pSu and about 60 PSU. The weave provides compressibility to the body surface 20α of the sanitary napkin 20 because it protrudes upward from the surface of the underlying surface material. It can be understood that this compressibility is related to the size of individual fiber colors and the mechanical properties of the filaments. The thickness test under load described in the analytical method section below can simultaneously evaluate these two factors to provide an overall response to this physical sensation. As shown therein, this method measures the compression by equalizing the length of the filaments The force required by the sample. Therefore, the sample with low compression ratio is believed to be Extra Good-18-The paper wattage is in accordance with the Chinese National Standard (CNS) A4 (210 X 297 mm) ___________? Ίί! Order _________ 夂 (Please read the back Please fill in this page again, please note) 434003 A7 B7 Printed by the Industrial and Commercial Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs of the People's Republic of China 5. The invention description (1β), because of its "easy" feeling, is shown in Example 2. It compares the surface layer according to the present invention with various conventional techniques. The surface layer according to the present invention has a compressibility of less than about 400 g / cm3. It is appropriate that the compressibility is less than about 375 g / cm3. Better, less than about 350 grams per cubic centimeter is better. This compressibility is believed to come from the area defined by the surface layer's volume between the base surface of the surface material and the end of the filament. As will be understood, because this area This area will only be occupied by the material that makes up the weave, and the area will have a low density. The method used to determine this surface density is the thickness under load test method described in the Analysis Methods section below The reason for the low compressibility of this area is that the only material that resists compression is the material that makes up the filaments. The continuous compression to maintain the filaments in closer contact so that the density in the area is close to the underlying surface material, the The compressive force must be increased. It has been found that materials with a surface density of less than about 035 g / cm3 can have the desired softness. A surface density of less than about 0.03 g / cm3 is preferred. Provided The filaments that give the desired surface feel to the surface layer according to the present invention can be provided using various methods. Suitable methods include the argon recombination described in the aforementioned U.S. Patent No. 4,629,643, as disclosed in the foregoing. The U.S. Patent No. G8 / 832,7 No. 15 contains the surface of the body containing non-woven materials, which was disclosed in February 1999 " Minnesota Mining and Manufacturing Corporation Application No .: No. 6623 for the softening of the polymer aggregates in the sample No. 6623, the fluff and the hairpin, as described in the 19 materials commonly assigned on June 9, issued to Xin et al. _ Patent No. 5,763, G44 Hot melt Material "" 1 on M surface ------------ Ur (Jing first read the precautions on the back before filling in this Ϊ f l · — order i ------- line (-19-

Printed by the Consumer Goods Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 434003 A7 _B7____ V. Description of Invention (17) Find and other methods known to those skilled in the art. The surface layer M which has the excellent combination of flow treatment properties and skin feel includes: a formed thermoplastic film material having multiple macropores and multiple micropores, wherein the area between the micropores and the macropores also provides multiple Microscopic, discontinuous, spaced areas containing low surface energy material deposits. This structure, as described in the aforementioned US Patent No. 6,025,049, creates a surface energy gradient between the deposit and the polymer structure of the underlying formed film; a material with a low surface energy is deposited to deposit between the deposit and the underlying Non-woven materials that produce a surface energy gradient between the polymer structures of non-woven materials are described in U.S. Application Serial No. 08 / 832,715, filed by Ouelette et al. On April 11, 997, and August 11, 1998 US Patent No. 5,792,040 issued to Cree et al. Each of these disclosures is incorporated herein by reference. Β Other materials suitable for use as the surface layer 38 include non-editions provided with holes in accordance with US Patent No. 5,628,097 issued to Benson et al. On May 13, 1997. Woven materials; laminates of non-woven materials and formed porous thermoplastic films, such non-woven materials as US Application Serial No. 08 / 761,905 filed by Bien on December 5, 1996 and US Application Serial No. 09 / 217,736 mentioned previously The description described in the article has a deposit of a low surface energy material that will produce a surface energy gradient between the sediment and the polymer structure of the underlying non-woven material; the United States of America applied for Lee et al. On June 24, 1999 Permanent hydrophilic shaped film material described in application serial number 09 / 344,161; and a polymer film fabric that feels microporous as described in US patent application serial number ____ and described in US patent application serial number The perforated polymer fabric with multiple three-dimensional surface structure, No. ____, is made by Lee et al.-20- a paper size applicable to the Chinese National Standard (CNS) A4 specification (210 X 297 mm) ---- - --ιιί ^ Ί ^ urah ^ --------- f 锖 Read the note f on the back before filling in this page> 434003 A7 ______ B7 V. Description of the invention (18) April 7, 2000 Application (P & G cases 8011 and 8012 respectively, the applicant will add the application serial number when he knows). Each of them is incorporated herein for reference. The back layer 40 prevents articles absorbed by and retained in the absorbent core 42 from getting wet from contact with the sanitary napkin 20, such as underwear, pajamas, and underwear. . The backing layer 40 is preferably resistant to the flow of liquid, and more preferably is impermeable to liquids such as menses and / or urine. The back layer 40 is preferably made of a flexible material. The term "flexible" as used herein refers to a material that is close to one's body and can easily conform to the usual shapes and contours of the human body. The back layer 40 may contain woven and non-woven materials, such as thermoplastics made of polyethylene or polypropylene. A polymeric film of a film, or a composite material such as a film-coated non-woven material, the backing layer 40 preferably has a thickness from about 0.012 mm (0.5 mils) to about 0.05 1 mm ( 2.0 mil) polyethylene film. The back layer 40 can be embossed and / or lined to provide a more cloth-like appearance. Furthermore, the back layer 40 can allow steam to escape from the absorbent core 42 (that is, breathable) ), But still prevent the effluent from passing through the back 40. A suitable backing material is obtained from Clopay Corporation, Cincinnati, Ohio, product number 18-1401. A suitable breathable backing material is "Laminates with Perforated Films" are described, for example, in U.S. Patent No. 3,929, 35 issued to Thompson, which is reversed so that the smaller openings of the tapered capillaries face the adhesive buildup to, for example, described in Exxon U.S. Patent No. 4,777,073 Absorptive core 42 of porous film. Absorptive core Absorptive core 42 can be a liquid that can be absorbed and retained by dogs (for example, menstruation and / -21-this paper size applies Chinese National Standard (CNS) A4 standard (210 x 297 public love) ( First read the note on the back of the page before filling in this page.) ---------- Bu—Order i ------- Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economy 434003, 'A7 _________B7 V. Invention Description (primary or urine) of any absorption device. For the purpose of the present invention, a suitable core has a high affinity for this liquid β. Because of this high affinity, the absorption core 42 absorbs this liquid from the surface layer 38 and retains it The obtained liquid is particularly effective. The proper structure for the core 42 has high capillary pressure, which enables the core 42 to effectively pass through the surface layer 38 to suck up the liquid deposited on the body surface 20A of the sanitary napkin 20 for storage. Proper core structure can also retain liquid well, either because of high capillary desorption pressure or because the core structure also contains a superabsorbent material that can be used to store the obtained fluid by an osmotic device. It is mentioned that the core 42 of the present invention can dry the surface layer 38 more completely than a core with a low capillary absorption pressure because of its high capillary absorption pressure. The method for determining the absorption pressure is provided in the analysis method section below. The core 42 has a particularly high capillary absorption pressure, which is very effective in obtaining fluid deposited on the surface layer 38. An average absorption pressure of at least about 7 cm is appropriate. An average absorption pressure of at least about 10 cm is preferably, At least about 12 cm is more preferred. Typically, the average absorption pressure is between about 7 cm and about 25 cm. More typically, the average absorption pressure is between about 10 cm and about 25 cm. The absorbent core 42 can be manufactured in a wide variety of sizes and shapes (e.g., rectangular, oval, hourglass, dog bone, asymmetric, etc.). The configuration and structure of the absorbent core 42 may also be changed (for example, the absorbent core may have a changed diameter area distribution to be thicker in the center), or may contain one or more layers or structures. However, the total absorbent capacity of the absorbent core should be Compatible with the designed carrying capacity of the sanitary napkin and the intended use. In addition, the size of the absorption core and -22- _ This paper size applies to China National Standard (CNS) A4 specifications (210 X 297 male; S) (Jing first read the precautions on the back before filling out this page) Pack --- -K--Order ----- ----- Printed by the Shellfish Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 4340 03 A7 _ B7___ V. Description of the invention (2 °) Absorption The ability should be altered to suit different uses, such as incontinence pads, panty liners, normal sanitary napkins or overnight sanitary napkins. Various liquid-absorbent materials commonly used in sanitary napkins and other absorbent articles, such as ground wood pulp commonly referred to as airfelt, are suitable for the manufacture of the absorbent core 42. Other suitable examples of absorbent materials include meltblown polymers containing co-compositions, chemically thickened, altered or crosslinked cellulose fibers, synthetic fibers such as creped polyester fibers, peat moss, containing wrapping paper and cotton sheets Tissue paper, absorbent foam knee, absorbent sponge, superabsorbent polymer, absorbent gelling substance or any equivalent substance or combination of substances or mixtures thereof. The configuration and structure of the absorptive core 42 can also be changed (eg, the absorptive core can have a changed radius region (eg, distributed to be thicker in the center), or a hydrophilic gradient, a superabsorbent gradient, or a lower density and lower The average reference weight acquisition area; or may contain one or more layers or structures.) The superb absorbent core 42 according to the present invention is a combination of hardwood pulp weave and softwood pulp fibers in an airlaid fiber fabric. Compared to absorbent fabrics without this fiber content, the introduction of hardwood pulp in the described combination can increase capillary pressure and improve fluid distribution. In addition, compared with the conventional art, by making the structure an air-laid structure, it is possible to spread the superabsorbent particulate material in the core 42 and achieve improved hard control over the entire generated core. As a result, the absorbent core 42 of the present invention is particularly suitable for use in the aforementioned surface layer materials because of its high capillary pressure, the high capacity obtained by using superabsorbent materials, and its overall hardness and other physical properties. _ -23- This paper is again applicable to the Chinese National Standard (C Qing Α4 size coffee χ 297 public love) (Please read the note on the back before filling in this page)-(Packing ------- Order- ------- 434003 A7 B7 R & D cooperation with the Intellectual Property Bureau of the Ministry of Economic Affairs. Du printed five. Description of the invention (21) 2 The best absorption core 42 of the invention contains hardwood pulp weaving and softwood paper. The air-laid fabric with a homogeneous mixture on the air. The fiber-absorbent fabric also incorporates superabsorbent particles throughout the M fabric. In addition, the fabric layer can also be used to synthesize 煸 machi. The component binder fibers are incorporated into the homogeneous mixture of the woven fabrics mentioned above. Unless otherwise stated, all composition percentages given below are expressed by weight. The woven fabric absorbent fabric 40 of the present invention preferably includes a range From about 4: 1 to about 1: 2, the softwood paper fiber to hardwood pulp fiber is better than 値 from 3.1 to about 1.1, and the best is about 2: ## 佳 之 硬木 纸 纱Fiber. Particularly suitable for eucalyptus fiber including those of eucalyptus. Hardwood pulp weave and eucalyptus special High surface area to provide high capillary pressure to the absorbent fabric. However, too much hardwood pulp fiber in the fabric will reduce the overall absorption capacity. In addition, the presence of excess hardwood pulp fiber may reduce the flow rate of the fabric To an unacceptably low level. Other suitable pulp fibers that can be used as hardwood pulp in the absorbent core 42 of the present invention include acacia, oak 'or cherry tree fibers. The hardwood paper is woven and held in the absorbent core 42 and Various softwood pulp fibers are blended. The softwood pulp weave is preferably blended into the structure in the ratio mentioned above. The best softwood pulp fibers are the softwood kraft weave of the south. Other suitable softwood weaves include the western and northern Kraft paper fibers. The combination of hardwood pulp fibers and softwood pulp weaves can provide fibers of different sizes that are combined throughout the fabric. This provides a good distribution of weave surface area and a high overall surface area in a preferred embodiment. As mentioned before, the use of hardwood pulp weaving will involve capillary pressure, capacity and / 24- paper Standards are applicable to Chinese National Standard (CNS) A4 specifications (21〇X 297 public love) (Please read the precautions on the back before filling this page). _J --— Order 1! -----% A7 4 3 4003 __B7_____ 5. The balance between the description of the invention (22) or the fluid treatment rate. Because the core 42 of the present invention is air-laid, it can easily incorporate superabsorbent materials. This superabsorbent material will improve the overall capacity of core 42 Thus, the high-capacity and high-capillary pressure are advantageously combined. The preferred absorption core 42 of the present invention also preferably incorporates two-component bonded fibers and / or superabsorbent articles. In a more specific embodiment, the two-component bonded line dimension The superabsorbent article is present in the fabric at the same time and blends throughout the thickness of the fabric in a substantially homogeneous mixture. As will be appreciated, the addition of two-component fibers may allow, for example, thermal bonding methods by air bonding, bonding using heating rollers, ultrasonic bonding, and other devices that dazzle the bonding material. This bonding also allows for a positive overall stiffness control. The hardness of the fabric is controlled by adjusting the amount of the two-component weaving dimension and the time and temperature parameters of the heat bonding method to control between about 5% to about 30% of the β fabric for the two-component fiber system. In a particularly preferred embodiment, about 15% to about 25% of the fabric is a bicomponent fiber. The preferred fiber system comprises polyethylene / polypropylene fibers, wherein the polypropylene core is secured by a polyethylene sheath. This appropriate 50% / 50% concentric two-component weave can be obtained from Danaklon, a Danish company. Other bonding materials can also be included in the fabric structure. Polyethylene powder adhesives and / or emulsion adhesives may, but need not, be incorporated into the fabric structure. The use of a powder adhesive such as polyethylene allows the fabric to become a heat-adhesive structure when used in conjunction with the two-component fabrics mentioned above. If an emulsion or other similar adhesive is used, the emulsion will act as an adhesive and the structure can be described as "emulsion adhesion." -25- This paper is again suitable for the National Standard (CNS) A4 specification (2i0 χ 297) (%) (Please read the notes on the back before filling in this page) II — I --- Printed by the Consumers ’Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs ^ 4340 0 3 A7 B7. 5. Description of the invention (23) The discussion has pointed out that the components of the fibrous portion of the super-best core structure interact to provide high capillary pressure, but other components of the absorbent core 42 can also contribute to this performance. Especially as previously mentioned, in the core 42 of the present invention The super-absorbent material using the preferred β-type superabsorbent material is SAB 960 from Stockhausen Louisiana Co., Ltd. of Garyvile, Louisiana. The preferred superabsorbent particle material used in the present invention has high transmittance. The preferred materials for demonstration include surface cross-linked polyacrylic acid, such as ASAP 2300 of Chemdal Company of Palatine, Ill. And in the review filed by Hird et al. The mixed bed material described in the assigned US Patent Application No. 09 / 258,890. AGM particles preferably constitute an absorbent core 42 from about 10% to about 50%. Higher amounts of this superabsorbent material can increase Absorbs the overall capacity of the core 42. However, an excess of the superabsorbent material may reduce the penetration of the core 42 due to gel blocking or similar effects. The fiber-absorbent fabric of the present invention may be webbed by suitable air known in any technique Craftsmanship. The use of air-laid fabrics, compared with other fabric forming techniques, allows the integration of particulate superabsorbent materials to spread throughout the structure and a higher positive control over the physical properties of the fabric. Intellectual Property of the Ministry of Economic Affairs Printed by the Bureau's Consumer Cooperatives < Please read the notes on the back before filling out this page) When the fabric incorporates the two-component fiber, the fabric is preferably formed using the heat-bonded air-laid technology mentioned above. In this structure, methods of additional adhesive materials such as powder adhesives or emulsions are not required. In any case, this additional material can be incorporated to produce The air-laid fabric that has been repeatedly bonded. In addition, the fabric does not need to incorporate any two-component fibers, and can be combined with the superabsorbent particles and the aforementioned hardwood and softwood pulp weaving dimensions to make -26- This paper size applies to the Chinese country Standard (CNS > A4 specifications < 210 x 297 public love) Printed by the 8th Industrial Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs ^ 434003 V. Description of the invention (M) The air bonded with the emulsion formed by the emulsion forms a network structure. Generate this air Appropriate methods for forming a web structure are known in the art. Other alternatives include the use of powdered adhesives such as polyethylene with various hardwood pulp and softwood pulp fibers to produce bonded air-laid fabrics. U.S. Patent No. 5,445,777 describes a preferred method of adding particulate superabsorbent materials and / or powdered adhesive materials (such as the polyethylene adhesives mentioned above) to air-laid fabrics of woven fabrics. Suitable for use in the construction of the woven absorbent fabric 40 of the present invention. The airlaid structure of the present invention can be manufactured by any suitable basis weight and density for the object to be used. The basis weight is suitably between about 60 g / cm2 and about 400 g / cm2 and the density is suitably between about 0.05 g / cm3 and about 0.2 g / cm3. A preferred structure for a sanitary napkin may have a total base weight of about 200 grams per square meter, a preferred density of about 0 13 grams per cubic centimeter, and a diameter of about .5 mm. For thicker products, the absorbent core 42 of the present invention may contain fluff of hardwood pulp fibers and softwood pulp fibers, wherein the diameter and the reference weight are adjusted to meet the needs of users who need this product. If necessary, the superabsorbent material can be evenly combined to spread throughout the structure. An alternative preferred material for the absorbent core 42 contains a polymeric foam (HIPE foam) generated from a high internal phase emulsion as described in U.S. Patent No. 5,795,921 issued to Dyer et al. On August 18, 998. This foam material can be manufactured so that it has the appropriate cell size to provide the aforementioned high capillary absorption force, and still has sufficient openings to allow, for example, menstrual and blood-based flow of insoluble substances that are free of charge To move. These absorbent -27 · This paper size is in accordance with China National Standard (CNS) A4 specifications (210 X 297 mm> < Please read the Cautionary Code on the back page and fill in this page) --------- ^ Printed by the Consumers' Cooperative of the Wisdom and Time Bureau of the Ministry of Economic Affairs 4340 03 1 a7 __B7 _ V. Description of the invention (25) Mo is produced by polymerizing HIPEs, where the volume of water relative to the oil phase is The weight ratio is in the range from about 20: 1 to about 125: 1. In addition to the previously mentioned absorbent materials, the absorbent core 42 may contain other types of materials known in the art, such as wrinkled weave-filled cotton, meltblown polymers containing co-compositions, chemical thickening, modification, or cross-linking. Cellulose inlays of chains, such as synthetic fibers of sensitive polyester woven fabrics, peat moss, tissue paper containing wrapping paper and cotton sheets, absorbent foam latex, absorbent sponge, or any corresponding material or material A combination or mixture of these. This additional material may be in the form of an outer layer with respect to the acquisition component 44 mentioned above, or it may additionally constitute a preferred structure for the absorbent core 42. Although this alternative preferred structure must still meet the aforementioned fluid handling requirements for the absorbent core 42, the structure provides the designer of the absorbent article with additional design flexibility to meet performance requirements and still provide the absorbent with the present invention The desired fluid treatment of the article as a whole and an absorbent article with a wide tactile feel. An exemplary core structure suitable for the purpose of the present invention includes an acquisition component that is adhered to the surface to create an unbonded window that is placed on an absorbent core containing a multi-bonded air-laid nonwoven material. The material is a blend of oryzanol fiber, bicomponent fiber, superabsorbent material, and emulsion binder. It is described in the commonly assigned and examined May 8, 1998 US patent application filed by Daniels et al. International Patent Application No. 0T / US96 / 20873 filed by Lynard et al. In No. 09 / 〇74 9〇9 and Dec. 20, 1996, which specifies the United States: Blends with crimped filler fibers, high surface area fibers and thermoplastic bonded fabrics, such as -28 issued to Horney et al. On August 27, 1996- This paper is applicable to the national standard (CNS) A4 specification ( 210 X 297 公 楚) ___________ (install ----- * · — ί order --------- ^^ 1 (Please read the precautions on the back before filling this page) Printed by the Industrial and Consumer Cooperatives ^ 434003 at ____B7 V. Description of the Invention 26) U.S. Patent No. 5,549,598. Each of these disclosures is incorporated herein by reference. The absorbent core 42 may also contain a blend or composition of a fibrous material and a HIPE foam, wherein the foam is sheet or particulate If an acquisition component (or "acquisition layer" or "distribution layer") 44 is used, it is below the surface layer 38. As used herein, the term, layer, 'or,' fabric 'includes, but is not Limited to a single unfolded sheet, folded sheet, sheet material, loose or bonded fibers, multilayer or laminate of materials, or other combinations of this material. Therefore, these two terms are not limited to only materials A single unfolded layer or sheet. The acquisition component 44 can provide a void volume under the surface layer 38 to add the ability of a tampon to pass through the surface layer 38 to absorb liquid. In the preferred embodiment described herein, the acquisition component 44 is preferably Provides elasticity to lateral compressive forces so that the tampon 20 has an improved resistance to folding up. The acquisition layer is used to quickly collect and temporarily store discharged body fluids, and to promote The body is transported from the initial fluid contact point to the rest of the acquisition layer and the absorbent core. There are several reasons why improved delivery of emissions is important. It includes providing a more even distribution of emissions in the absorbent core and the use of sanitary napkins. It can be made thinner. The transportation here can include the transportation of liquid in ~, two or all directions (ie in the xy plane and / or z plane). The acquisition layer can contain several different materials, including polyesters 'Polypropylene or polyethylene synthetic weaves, natural fibers including cotton or weaves, blends of such fibers, or any equivalent material or combination of materials, non-woven or woven fabrics. Examples of tampons with an acquisition layer and a surface layer are described in more detail in U.S. Patent No. 4,95,264, issued to Osborn, U.S. Patent Application No. 07/81, issued by Cree et al. On December 7, 1991. , 774 -29- This paper size applies the Zhongguanjia Standard (CNS) A4 specification (& 297 public love) '' (Please read the note on the back before filling this page)

C ------- ^ 1. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economy 43400 3 ί Α7 ____ Β7 ____ V. Invention Description < 27) and June 24, 1993 Announced as PCT Application No. w〇 No. 93 / Π7 725, and the aforementioned International Patent Application No. pct / US96 / 20873. The disclosure of each of these references is incorporated herein by reference. In a preferred embodiment, the acquisition layer can be connected to the surface layer by any conventional means for bonding the fabric together, and more preferably the fusion bond described in the aforementioned Cree application in more detail. The acquisition component 44 should be liquid permeable. The ingredients obtained are preferably close-fitting, soft to the touch and non-irritating to the wearer's skin. The acquisition component 44 has a body-facing surface (or side) and a garment-facing surface. The acquisition component 44 may be of any suitable size and shape. In the specific embodiment shown in 囷 1, the acquisition component 44 is a racetrack shape having slightly concave side edges', which is a portion of the surface layer 38 covering the main portion 22 of the sanitary napkin 20. However, the size of the obtained component 44 is preferably smaller than that of the surface layer 38. The obtaining component 44 can be manufactured from any material suitable for the purpose for which the surface layer µ can be fused thereto. The acquisition component 44 may be composed of a woven or non-woven material, for example. Cellulose or other components of these materials can be synthetic, partially synthetic, and partially natural. Suitable synthetic fabrics include polyester, polypropylene, polyethylene, nylon, viscose or cellulose acetate. Suitable natural fibers include cotton, cellulose or other natural fibers. The acquisition component 44 may also be composed at least partially of cross-linked weave fiber. If the obtained component 44 is non-woven, it can be manufactured by several different methods. These include, but are not limited to, airlaid, blown, spin-bonded, carded, thermal-bonded, aerated-bonded, powder-bonded, emulsion-bonded, solvent-bonded, and combinations thereof. -30- This paper size is applicable to China National Standard (CNS) A4 (210 X 297 mm) ----— iiir Pack--6--L ----- Order --------- (Please read the precautions on the back before filling in this page} 4340 0 3 A7 B7 V. Description of the invention (28) The component 44 can be described by the decorative layer in the aforementioned US Patent No. 5549 589. Construction method. The other preferred construction method for obtaining component 44 is a laminate of two non-woven materials. The uppermost layer (or "second surface layer") of this material 46 preferably contains 19 grams / square yard (22 5 g / m²) of spin-bonded polypropylene non-woven material, its product number is 065MLPV60U (or "P · 9"), available from Nonh AmeHca 〇f

Available from Fiberweb, Washougal. The bottom layer (or "third surface layer") 48 of the laminate preferably contains a multi-bonded air-laid non-woven material that uses powder bonding and emulsion bonding to thermally bond. In the preferred embodiment, 'this multi-bonding The air-laid non-woven material contains about 77% cellulose fibers, about 20% powder binder and about 3% emulsion binder (1.5% indifferent on each side of the fabric), and has a weight of 50 g / square Basis weight (about 60 g / m²). (Unless otherwise stated, all percentages are expressed as weight.) This multi-bonded airlaid nonwoven is preferably from Wu, Canada A product from Merfin Hygienic Products Co., Ltd. of Columbia Delta 90830X3 1 2 is obtained. These two non-woven layers are preferably obtained by placing a multi-bonded air-laid non-woven material on a spun-bonded polypropylene non-woven material. Laminated together. In the process of generating this laminate, the spunbond material is used as an auxiliary or carrier fabric. In another specific embodiment, the spunbond polypropylene nonwoven material can have a higher Or a lower basis weight, or it can be replaced by air-laid tissue paper, wet-laid tissue paper, or any of the materials mentioned above. If a clear-laid tissue paper is used instead of polypropylene non-woven material , The orientation of the laminate is preferably reversed so that in the finished product, multiple bonded air-laid non-woven materials are placed -31-This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) (please (Please read the notes on the back before filling out this page)-· -1 — ** · 1-Subscribe --------- Printed by the Intellectual Property Bureau Employee Consumer Cooperative of the Ministry of Economic Affairs 4343003 A7 B7 Economic Village Intellectual Property Bureau Printed by the employee consumer cooperative V. Description of the invention (29) Placed on wet-laid cotton tissue paper. In the case of thicker sanitary napkins, any of the ingredients mentioned in the previous article can be used. In a specific embodiment of cotton, a low-density emulsion-bonded air-laid material can be used as the entire acquisition component (ie, a third surface is not required). A low-density emulsion-bonded air-laid material suitable for this purpose has about 80 grams Material with a basis weight per square meter It is known to be available from Fki413MHB, a product of Walkisoft, USA of Mt. Holly, North Carolina. The watch 38 described herein is preferably fused to the acquisition component 44 or the absorbent core 42 or both. It is used to coat the surface layer Appropriate methods of fusing (or integrating) at discontinuous locations to the underlying components are described in the aforementioned US Patent Application No. 09 / 074,909. As described in the aforementioned application, it will be shown widely The layers glued to the bottom are preferably performed at discontinuous locations and the center of the object is provided with an "unbonded window." The assembly surface layer 38 of the sanitary napkin, the acquisition component 44, if included, the back layer 40, and the absorbent core 42 can be assembled in a variety of configurations known in the art (including layering or "three-rule" configuration and wrapping or "tube" "Configuration". Figures 1 and 2 show a preferred embodiment of a sanitary napkin 20 assembled in a three-rule configuration. In 囷 N3, the surface layer 38 and the back layer 40 have generally larger than the absorbent core 42 The length and width dimensions of the surface layer 38 and the back wide 40 are extended beyond the edge of the absorption core 42 to form a part of the outer garden 30. The side of the surface layer 38 facing the clothing is preferably connected to the acquisition component 44 as described above. It faces the body surface. If necessary, the acquisition component 44 can be attached to the absorbent core 42. If these components are attached, they can be used to attach the surface layer 38 to any of the acquisition components 44 as described herein. Matter h page I · η

Order I • I I% This paper size applies to the Chinese National Standard (CNS) A4 (210 X 297 mm) A7 434003 ______B7__________ V. Description of the invention (30) Method link. However, in the specific embodiment shown here, the acquisition component 44 is not directly connected to the absorption core 42. The back layer 40 is preferably attached to the body-facing surface of the absorbent core by an adhesive. Parts of the surface layer 38 and the back layer 40 extend beyond the edge of the absorbent core 42 and the acquisition component 44 is preferably also connected to each of them. The portions of the surface layer 38 and the back layer 40 may be joined in any suitable manner known in the art. The "link" used in this statement includes a configuration in which a component is directly fixed to other components by directly fixing one component to other components, and a component is fixed in an intermediate component and fixed in another The curse of a component so that one component indirectly catches other components, and the integration of a component with other components, that is, the configuration of a component that is essentially a part of other components. In the specific embodiment shown, these portions of the surface layer 38 and the back layer 40 are preferably bonded using adhesive to fold over the entire portion beyond the edge of the absorbent core 42 and crimped at the end edge 28 of the body portion The seal 'surface layer 38 and the back layer 40 are compressed by applying a whole force or a heat and force. Exemplary absorbent article branching A particularly preferred embodiment of the present invention comprises a surface layer according to U.S. Patent No. 6,025, 049 and the aforementioned particularly preferred core. The performance of this particularly preferred structure is shown in Example 1 below in Table 1 below. As shown by the data in Table 1, this particularly preferred embodiment has a very desirable balance of fluid handling properties and softness. In particular, the surface layer 38 of this particularly preferred embodiment contains a plurality of macro holes that allow fluid to contact the surface of the body of the surface layer 38 to pass therethrough, and a plurality of upwardly extending and when a forming film is used as the surface layer to generate a body contact surface -33- The size of this paper is applicable to Chinese National Standard (CNS) A4 specifications (2〗 0 X 297 mm) One-(please read the note on the back and then fill out this page)-^ * —i 1 if I 1 · I ^ «Ι1Ι1Ι1Ι — printed by A7 4340 03 ___ Β7 in the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs V. Description of the invention (31) A microporous thermoplastic film with a surface of 20A. The area between the micropores and the macropores also provides multiple micro, discontinuous, spaced areas with low surface energy materials. There is a surface energy gradient between the sediment and the polymer structure of the superb surface layer 38 below, which will generate a force to promote the movement of the body fluid deposited on the body surface 20A to the giant hole and pass through to be covered by the core 42 absorb. This preferred embodiment also contains an acquisition component 44 which is located under the surface layer 38 as previously mentioned. Obtaining ingredient 44 is a second surface layer 46 containing a spun-bonded polypropylene non-woven material and a second surface layer 48 of a multi-bonded air-laid non-woven material, which are used in the above-mentioned and previously mentioned U.S. Patent No. 5,549,589. The described powder bonding and emulsion bonding are for thermal bonding. The core 42 used in this preferred embodiment is described in more detail above and described in more detail in U.S. Patent Application No. 6 under Common Assignment and Examination, filed April 8, 1999 by Noe 丨 et al. /〗 28,352. As noted above, these preferred structures for the core 42 are a blend of hardwood and softwood fibers that can provide high capillary pressure and superabsorbent polymers that can provide high osmotic storage capacity. The above-mentioned preferred ingredients can be combined with the liquid impermeable t-back layer 40 known in the art. According to the configuration discussed in the assembly section of the above-mentioned sanitary napkin, it can be assembled into the preferred embodiment of the sanitary napkin 20 of the invention. example. Selected Costs Margins The sanitary napkin 20 shown in Fig. 1-2, as discussed above, preferably contains a pair of Margins 24 selected for connection to the body portion 22. This marginal wing μ is from the side • 34-This paper body, Du Tongshi S ® Home Standard (CNS) A4 specification ⑵ 0 X 297 (Jing first read the precautions on the back before filling this page) ^ 装 · '" —— 丨 Order --------- 、. Printed by the Consumer Cooperatives of Xihui Property Bureau of the Ministry of Economic Affairs A7 4340 03 _ B7_ V. Description of the invention (32) The longitudinal side extending beyond the main part 2 2 The edge 26 extends from its proximal edge 60 to its distal edge (or, free end, ') 62. The edge wings 24 extend outward from the central region 36 of the main Zhao portion 22. Rugao! As shown in the figure, each edge 24 crosses the center line τ by the edge wings to divide into the front half 64 and the rear half 66 β. The edge wings cross the center line! ^ May be consistent with the main line of the sanitary napkin, but the edge flap 24 is not absolutely required. The edge flap 24 may be connected to the main body portion 22 in any suitable manner. Β In the specific embodiment shown in FIGS. 1-3, the edge flap 24 is preferably integrated with the main body portion 22 (that is, the edge wing 24 includes the entire extension of the surface layer 38 and the back layer 40). In other alternative signed embodiments, the flange 24 may contain a separate component attached to the body portion 22. The flanges 24 are each connected (or united) to the main body portion 22 along the joint. This is typically a longitudinal-to-orientation (or, longitudinal) junction, such as junction line 68. The term "junction" (or, junction line ') as used herein refers to the extension of the edge flap 24 Or link to the area of the main ceremony section 22. The joint line 68 of the specific embodiment illustrated in the illustration can be considered to be defined by borrowing the area or line that is concave. The edge 24 can be any suitable Configuration. Appropriate marginal wings are described in

Van Tilburg's reexamination patent No. Bi 4,589,876, issued on April 27, 1993; Reexamination Certificate issued by Van Tilburg on August 18, 1987; US Patent No. 4,687,478 obtained on August 18, 1987; Lavash et al., Obtained on February 14, 1995 U.S. Patent No. 5,389,094; U.S. Patent No. 5,558,663 (indicated by the wearer as an alternative to wings) applied by Weinberger et al. On September 24, 1996 1: and Lash et al. The applied international patent application number is PCT US 96/1597. -35 for Margin 24-This paper size applies to China National Standard (CNS) A4 (210 X 297 male cage) ------- IIII 1 K i · Γ I (Please read the precautions on the back first Fill out this page again> Order printed by the Intellectual Property Bureau's Consumer Consumption Cooperative of the Ministry of Economic Affairs 4340 03 A7 B7 Printed by the Intellectual Property Bureau's Consumer Consumption Cooperative of the Ministry of Economic Affairs 5. Description of the Invention (33) Other better features include a deformed area, which can be Forming hinges and extendable regions or micro-extendable regions are described in US Patent Application Serial No. 09 / 074,909 filed by Daniels et al. On May 8, 1998; and Lynard et al. On December 20, 1996 The application is assigned to the United States International Patent Application No. PCT / US96 / 2087. The garment surface 20B of the tampon 20 can include and preferably includes a fastener for attaching the tampon to the wearer's underwear. Round 3 A central lining holder 82 is shown, which is used to fix the main part 22 of the sanitary napkin 20 to the inner and outer crotch areas. Any type of holder known in the art can be used, such as an adhesive holder and a mechanical holder Device. Adhesive-based anchors can be used for this purpose quite well, and pressure-sensitive adhesives are preferred. In a preferred embodiment, the center-lined anchor 82 includes a pair of longitudinally-oriented anchors. Spaced strips or areas of adhesive are approximately in the middle of the longitudinal centerline. The outer surface of the edge wings 24 adjacent the distal edge 62 of the edge wings is preferably provided with edge edge adhesives 84. Edge edge adhesives 84 It is used to help the edge flap 24 maintain the correct position after it wraps around the edge of the crotch portion of the tampon. A suitable adhesive fixture is described in more detail in US Patent No. 4,917,697. Edge flap 24 The edge flap 24 can be connected to the underwear or the opposite edge flap to maintain the correct position. The fixture used in the present invention is not limited to the adhesive connection device. Any kind of fixture used in the art can be used For this purpose, for example, the sanitary napkin 20 can be fixed to the wearer's underwear by a mechanical fastener, -36-This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) ( Please read the urgent matters on the back before filling out this page} 装 — -I 定 i ------- Α7 Duplicate printing of employee cooperation of the Intellectual Property Bureau of the Ministry of Economic Affairs _____ Β7 ___ 5. Description of the invention (34) For example, VELCRO or US Pat. No. 4,946,527, Battrel 丨 August 7, 1990, or US Pat. No. 5,392,498, Goulait et al., February 28, 1995. However, for simplicity, the fixture The device will be described by an adhesive connection device * Adhesive connection devices are each covered by a removable release liner, a central liner release liner labeled 86, and a wing release liner. The pressure-sensitive adhesive should be covered with a release liner 86 to prevent the adhesive from sticking to the outer surface before use. A suitable release liner is described in U.S. Patent No. 4,917,697. A special release liner that is also an individual package for wrapping tampons is described in U.S. Patent No. 4,556,146 to Swanson et al. The sanitary napkin 20 of the present invention is used by removing the release liner 86 and placing the sanitary napkin 20 in underwear. The main body portion 22 is placed on the crotch portion of the underwear. One end of the main body portion 22 extends forward to the front area of the underwear and the other end faces the rear area of the underwear. The back layer 40 is placed to fit the underwear. The medial inner surface of the crotch is in contact. The center lining holder 82 maintains the main body portion 22 in the correct position. The farthest part of the edge wing 24 is folded along the side edge of the panties. The edge flap adhesive 84 secures the edge flap 24 to the underside of the panties or to the opposite edge flap. EXAMPLES This example is the fluid treatment properties and softness of the sanitary napkins in the form of various practical examples and demonstrations of the sanitary napkins of the present invention, as well as the commercially available sanitary napkins believed to represent the best of the known techniques. The comparison of degrees' is evaluated according to the method in the analysis method section below. -37- This paper size is in accordance with Chinese National Standard (CNS) A4 (210 x 297 mm) (Please read the precautions on the back before filling in this page) η Packing. [Lr_ 订 i ------ -% 4340 0 3 4 A7 B7 V. Description of the invention (35) Table 1 Control * € :. Printed by the Consumer Property Office of the Intellectual Property Bureau (seconds) (mg) (seconds) (PSU) 1 43 45 3 34 2 47 9 5 35 3 10 5 5 37 4 13 5 6 8 5 95 11 25 31 6 55 11 6 9 7 195 330 * 0.2 49 8 33 749 18 49 9 38 8 8 8 10 134 19 0.2 22 11 11 4 0.3 5 12 49 43 49 41 13 63 6 52 36 U 60 46 3 38 15 55 28 0.6 36 16 64 83 47 26 17 71 30 0.5 23 Sample description No. 1 Know-how: The surface layer is based on the core of US Patent No. 6, 〇25J49 According to Patent Application No. 09 / 074,909 i 2 The present invention: The surface layer is in accordance with US Patent No. 6,025,049, 38-Paper's Ai Applicable Standard (CNS) A4 Specification < 210 X 297 mm) {Please read first Note on the back, please fill in this page again.) I.r--; --Γ order * 1 ------- 434003 A7 B7 Printed by the Employees ’Cooperative of Intellectual Property Bureau of the Ministry of Economic Affairs (36) Special features described previously Core 3 The present invention: The surface layer is according to US Patent No. 6,025,049, thick airfelt core 4 • Know-how: The surface layer is according to US Patent No. 4,342,3 〖No. 4, thick airfelt core 5 The invention: The surface layer is according to patent application serial number 09 / 217,736 No.6, as described above, the best core 6 know-how: the surface is based on US Patent No. 4,342,314, the core is based on the patent application serial No. 09 / 074,909, 7 know-how. _ Thin sanitary napkins obtained from Japan Kao Manufacturing Co. Laurier Softmesh Ultra 8 Learning Skills: Thick Sanitary Pads Laurie Softmesh Slim 9 obtained from the Japanese Kao Manufacturing Company Learning Skills: Thin Sanitary Pads Sofy Sara 10 obtained from UniCharm Japan Learning Skills: From New Jersey Stayfree Ultra Thin 11 thin sanitary napkins from Personal Products Company, Skillman, State: Stayfree Alas Normal Malla Siempre Seca thick sanitary napkins from Johnson & Johnson de Venezuela Company: Kimberly-Clark from Germany Kotex Camelia 13 thin tampon obtained by GmbH: from Elleair Thin sanitary napkin & quot obtained it; 39 * (Please read the back of >!. Precautions to fill out this page)

C Pack · * ------ I --- Order ί ------- ^ This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) 4340 03 A7 _ B7 Ministry of Economy Printed by the Intellectual Property Bureau's Consumer Cooperatives V. Description of the Invention (37) Elis 14 The present invention: According to the aforementioned US Patent Application Serial No. ____, the permanent hydrophilic surface layer (P & G case 8012, the applicant was informed Application serial number will be added at the time), according to the core 15 described in US Patent No. 5,795,921. The present invention: According to the aforementioned US Patent Application No. ____, the formed film polypropylene surface layer (P & G case 8012, The applicant will add the application serial number when he knows). 'Has the core 16 know-how based on described in US Patent No. 5,795,921: the hydrophobic non-woven surface layer Corolind obtained from Corovin GmbH of Penne, Germany and according to US Patent No. 5,628,097 No. perforated to obtain a basis weight of 20 g / m 2 17 Know-how: Corolind, a hydrophobic non-woven surface layer treated with surfactant obtained from Corovin GmbH, Penne, Germany, and according to US Patent No. 5,628. No. 97 is perforated to obtain a reference weight of 20 g / m 2 Example 2 This example is a comparison of the properties related to the softness of the surface layer according to the conventional art according to the present invention Sample No. Softness Compression Table $ & ( PSU) (grams / cubic centimeters) (grams / cubic centimeters) «-40- (Please read the notes on the back before filling in this 1) h Pack t — Order: This paper size applies Chinese National Standard (CNS) A4 specifications ( 210 X 297) 434003 A7 -------- B7 V. Description of the invention (38) 1 32 325 0.027 1 1 2 4 549 0.037 Please first 1 | 3 43 581 0.072 Read 1 1 0.018 Back 1 I 4 46 226 Face 1 II 5-714 0.050 Notes C 1 | 6-592 0.073 1 η \ · 7-653 0.150 Fill in 8-488 0.058 This page \ | 9-205 0.037 i Y 10 47 339-1 1 I 11 33 430-subscription • 12 48 939-1 I 13-250-1 1 1 14 41 350-1 1 1st floor ^ · Sample sample description Printed by Consumer Cooperative 2 Surface layer according to US Patent No. 4,342,314 3 Patent application based The surface layer No. 09 / 217,736 is used on the thin sanitary napkin Laurier Softmesh Ultra obtained from Japan Kao Manufacturing Co. as a non-woven fabric. 5 The surface layer is used on the thin sanitary napkin Sofy Sara obtained from Japan UniCharm. Forming film as surface layer -41-This paper size is applicable to China National Standard (CNS) A4 (2) 0 X 297 mm 4 3 4 0 0 3., a: B7 V. Description of invention (㈤) {Please first (Read the note on the back and fill in this page again.) 6 Used as a non-woven fabric on the Stayfree Ultra Thin sanitary napkins obtained from Personal Products of SkUlman, Jersey. 7 Used by Johnson & Johnson de Venezuela. The obtained thick tampon was used as the surface layer of the formed film on Stayfree Alas Normal Malla Siempre Seca. It was used on the thin tampon Kotex Camelia obtained from the German company Kimberly-Clark GmbH as the surface layer of the non-woven fabric. 9 Used from Elleair, Japan. The thin sanitary napkin Elis obtained by the company is used as the surface layer of non-woven fabric — 10 The formed film according to the aforementioned US Patent Application No. ____ Acrylic surface layer (P & G case 8012, the applicant will add the application number when known) Polypropylene surface layer 11 According to US Patent No. 4,629,643, the formed film surface layer 12 Hydrophobic non-woven obtained from Corovin GmbH, Penne, Germany The fabric Corolind JL was perforated in accordance with US Patent No. 5,628,097 to obtain a basis weight of 20 g / m² Printed by the Ministry of Economic Affairs 11- ^ Printed by the Labor Bureau Consumer Cooperative 13 According to the aforementioned US Patent Application Serial No. The surface layer of the permanent hydrophilic forming film No. __ (P & G case 8012 'The applicant will add the application serial number when he knows it) 14 According to the aforementioned US patent application serial number ---- permanent hydrophilic tissue Forming film (P & G case 801 2 'Applicants will add the application serial number when they know) -42- _ This paper size applies to China National Standard (CNS) A4 specification (2 buckle 34 297 Kung Chu) A7 434003 * B7_ V. Description of the invention (40) (please read the note on the back before filling in this page) Analytical method Droplet acquisition time 1) Place a sample of the surface layer about 18 cm X 28 cm on a layer of BOUNTY towel on a flat surface (Procter & Gamble, Cincinnati, Ohio). Place a clean Lexan® plate 15 cm long by 20 cm wide by 1 cm thick on top of the surface sample. It has 18 2.5 cm intervals, 3 columns each Drill holes of 1,9 cm (3/4 ") in 6 holes β. The pressure exerted by the disc on the sample is about 0.02 pounds (0.14 kPa) per square inch to ensure the surface and BOUNTY. Close contact between towels. In addition, 'if the finished product is evaluated' it is not necessary to use the disc. The alternative is to apply 18 droplets (see step 2) to the product sample. The pattern is 6 droplets applied near the intersection of the longitudinal and lateral centerline of the product: 3 droplets applied near the longitudinal center. Near each end of the line; and 3 droplets are applied near each of the sides adjacent to the central line of the side. Printed by the Consumer Goods Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 2) Transfer 45 microliters of sheep's blood dripping from the pipette (100 microliter capacity, it has been found that Eppendorf air can replace the pipette) The surface of the sample in a hole. The tip of the pipette should be about 3-5 mm above the surface, and the droplets should be applied in a way that minimizes the force applied from the pipette. 3) When the droplet contacts the sample, the acquisition time is measured. 4) Stop timing when the top surface of the sample becomes less visible due to the droplet passing through the sample. Record this droplet acquisition time. • 43- This paper size is in accordance with Chinese National Standard (CNS) A4 (210 X 297 mm) '-Ϊ340 03 A7 _ B7 V. Description of the invention (41) 5) If the acquisition time exceeds 60 seconds, record the result 61 seconds β (please read the note on the back before filling this page> 6) Repeat the steps 1 to 5 through the other holes on the Lexan plate for a total of 17 times, providing 18 measurements per sample value. 7) Repeat steps 1 to 6 on two additional surface samples. 8) Calculate the average droplet acquisition time. Use 61 seconds for droplets that cannot enter or pass the sample within 60 seconds. Light body penetration time This test method measures the penetration time, that is, the time required for a known volume of liquid applied to the surface material in contact with the absorbent fluid below or the body surface of the absorbent article to pass through the sample. The method used here is described in the European Standard Method 150.3-96 for Disposables and Nonwovens (Brussels, Belgium). The differences are as follows:

Test conditions EDANA ** 150.3-96 Ambient temperature 20 ± 2 ° C 65 ± 2% Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs of the method of the present invention 22 ± 10 ° C 50 ± 2% Square inches 0.25 lbs (1.7 kPa) 10 ml relative humidity test absorbent under pressure sealed fluid synthetic urine paper 500 g / (12.5 cm) 2 (~ 0.3 kPa) fluid volume obtained 5 ml back Wet rewetting is a test that is designed to measure the amount of liquid that emerges from the absorbent structure through the surface and causes the surface to become wet. The square used here -44 This paper size is applicable to the national standard (CNS) A4 specification (210 X 297 mm) 4340 03 ί Α7 Β7 V. Description of the invention (42) The legal system can be discarded after being inserted in Europe Standard Method No. 151.1 · 96 of the Association of Textiles and Nonwovens (Brussels, Belgium), the differences are as follows:

Test conditions EDANA method 151.1-96 Ambient temperature 20 ± 2eC Ambient relative humidity Type of filter paper 65 + 2% ERT FF3 Number of pieces of filter paper Closed pressure test fluid Fluid load Exposure time: Distribution wet again 2 4000 g / 10 cm) 2 ( ~ 3.9 kPa) 3,3 times the weight of synthetic urine filter paper 3 minutes and 2 minutes under load Load the group to go to the sore The square coating of the present invention _ 22 ± l〇C 50 ± 2% Ahlstrom (Pennsylvania Mt. Holly Springs) # 632 7 0.77 pieces per square inch (5.2 kPa) sheep blood 7.5 ml 15 minutes 15 seconds ------------ κι loaded l ... (Please read the back first (Please note this page before filling in this page) · f-. Print out the summary of employees ’cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs, using trained scoring respondents to compare the tactile softness of a series of test products or surface materials. Grading i The raters are all females and have been selected and trained to be able to distinguish small differences in tactile softness. This rehearsal (a part of each rater confirms that it is used at -45

Printed by the Consumers' Cooperative of the U.K. Property Bureau of the Ministry of Economic Affairs 434003 ^ A7 _____ B7 V. Description of the Invention (43) All evaluations are "with advantage" (that is, the most sensitive). The graders are monitored on the basis of learning and retrained if necessary to minimize deviations over time. Device sensor box is a room designed for sensory evaluation. It has, for example, the separation of raters from other raters, the barrier between samples and respondents so that the samples can pass through the gap to touch, and other features known in the art. The features are better, and the sensory box described below has been found to be suitable for softness evaluation. It is a cuboid box of 33 cm x 43 cm (face) x 20 cm (deep), with an open back for sample reminders and openings before being covered by black curtains (the curtains are two parts, each about 21 cm) Wide and separated from the center to make it easy for scorers to enter). Felt When only the sample of the surface layer is scored, a 23 cm x 18 cm hair shaft is used as the substrate. The suitable material is 54 polyester wool consumption, classic rainbow, dark blue, Kunin Felt from Hamptori, New Hampshire. Method 1) The host of the answering group introduces the first sample into the sensory box. Up to 6 test samples can be evaluated in any one test phase. Two control samples, one with fairly high softness readings (according to the hydroformed scent prepared in US Patent Nos. 4,629,643 ~ 35 mentioned in the previous fan) and-with relatively low softness readings (based on the aforementioned U.S. Patent Nos. 4,342,314 to 5 (formed films) are used in each series. -46- The size of this paper applies to China National Standard (CNS) A4 specifications < 210 X 297 mm " Loading 丨 < Please read the precautions on the back before filling this page]

C * * 434003 ^ A7 _ B7_____ V. Description of the invention (44) (please read the note * 5 ^ on the back side before filling out this page) The samples are presented to each respondent in an irregular order. When only the surface samples are evaluated, the samples are first spread out smoothly on the raised surface before being presented to the respondent. Each sample can only be scored once. 2) Respondents used a 60-point scale for each sample to assess softness, where softness 0 means completely non-soft and 60 means very soft / sulky. Respondents used the three fingertips of their most dominant hand to determine the softness score of the sample (the finger was arched so that only the fingertip touched the sample). Control samples are used between tests to maintain consistency. Mark the subtree on the linear ruler on the sample data sheet to record the score of each sample. 3) Repeat steps 1 and 2 for a minimum of 12 respondents. Report Report the average and standard deviation for each test sample including the control sample. You can use known statistical methods to determine significant differences (for example, variation analysis of Newman-Keuls multi-range tests, etc.). Thickness under load Summary: This test method determines the thickness of the material as a function of the applied load. The data generated using this method of printing by the Consumers' Cooperatives of the Intellectual Property Bureau of the Ministry of Economics can be used to calculate the shrinkage and surface density as a function of the applied load. Range: This method applies to materials from 0.2 mm to 5 mm thick. Samples tested by this method should be flat and have no significant curvature. The top and bottom of the material shall be essentially parallel. -47- The paper size applies the Chinese national standard (CNSJA4 specification (21CU 297mm) ------- A7 434003 ”____ B7__ V. Description of the invention (46) Sampling: The sample should be cut to make it larger than the sample used for compression The diameter of the roller is 25 4 mm. The rectangular cutting mold 3.8 cm x 6.99 cm is appropriate. The pre-tested area must be able to lie flat. Samples can be cut from individual materials or finished products. Crease or curvature and the sampling procedure is not twisted. • Dimensions of the material "For example, when sampling a finished product, the sample material must be cleanly separated from other materials. At least three different samples should be measured to report the average result ^ Device: Use -Constant rate extension (CRE) tester. A suitable CRE tester is Instrori Model 5564 from Instron Corporation of Canton, Massachusetts. The CRE tester must have a precision control and measurement link to 〇〇 丨 mm Rod. The CRE tester must be able to measure the load accurately to $ gram force (5 millinewtons. The CRE tester should have a consistency of less than 0.02 mm under an applied load of 1 newton. The moving link should be able to mount 25 4 mm diameter (5.07 cm 2 area) round, flat roller discs, which are precisely connected to the bearing element. At least a circular flat plate with a diameter of 100 mm The rollers should be precisely mounted to the fixed clamps below. The surfaces should be parallel to each other and have a tolerance of 0.02 mm or less. Procedure: 1) The grams of surface material should be weighed on an analytical balance to weigh 100 square centimeters or A larger, precisely known area is determined to an accuracy of 20000 g. 2) The flat sample is placed on the bottom roller, maintaining a known distance from the parallel rollers. For a 1.00 mm thick sample , 3.00 mm is recommended -48- This paper size is applicable to China National Standard (CNS) A4 (21〇X 297 cm) " --- ------- il-ν, installed · K- -< Please read the notes on the back before filling this page) Order · _ Printed by the Intellectual Property Bureau of the Ministry of Economic Affairs, Printed by Consumer Cooperative 434003 ^ Α7 Β7 V. Description of the invention (46) Starting interval. CRE load-bearing components are tested at each It should be reset to zero when the wheel is not in contact with the sample before starting. 3) CRE The tester lowers the upper roller toward the sample at a rate of 2.54 millimeters per minute, and records at least 1,000 data points per millimeter until the sample is compressed and reaches a load of 500 grams. 4) The position of the upper roller is used. To determine the thickness of the material under any load. The thickness should be measured under a load of 5 grams of force and 50 grams of force, corresponding to a pressure of 1000 kPa and 1000 kPa on the sample. Calculation: compressibility is borrowed Calculate the secant slope of the stress / tensile compression curve between 5 and 50 grams and divide this slope by the area under compression to determine. The unit of compressibility is g / cm3. This slope is calculated by dividing the change in load by the change in thickness. For example, if the material is 100 mm thick under a 5 g load and compressible to 0.70 mm under a 50 g load: 50 g-5 g 1.00 mm-0.70 mm 150 g / mm Enclosing slope (Please read the notes on the back before filling in this page)

C Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs = (150 g / mm) (10 mm / cm) (1 / 5Ό7 cm2) = 296jt / cm3 Similarly, the surface under a given load Density is calculated by dividing the weight (grams of material per square centimeter) by the thickness under load. A Surface density under the load of X = -ί4 —___ Thickness under the load of I For example, the surface density of a material having a weight of 0.00325 g / cm² and a thickness of 0.065 cm under the pressure of 00 Pascal is: 0.00325 G / cm2 Λ ^ 6 055 cm = 0.0500 g / cm3 --- 'f ^ -49- A7 B7 4340 03' · 5. Description of the invention (47) Average absorption pressure This test measures the absorption absorbed Or the amount of desorbed fluid is equal to half of the amount absorbed at a height of 0 cm (free absorption capacity). The method for capillary absorption described in U.S. Patent Application Serial No. 09 / 258,889 entitled "Absorbing Film Containing High Surface Area Materials for Absorbing Body Fluids", filed by Young et al. On March 1, 1999 It is used with the following differences: 1) The initial suction height is 50 cm instead of 200 cm. 2) The test is performed under atmospheric experimental conditions rather than controlled temperature and relative humidity. 3) The frit 202 is not covered ^ 4) The storage tank 206 and the balance 207 are not included. 5) The cylinder 266 and the piston 288 are not balanced at 3 1 eC. 6) Use a closed film instead of a perforated film to reduce evaporation. 7) The height of the device is 50 cm. 8) No evaporation loss correction. 9) The average capillary absorption pressure is determined from the absorption isotherm when the height of the sample absorption is equal to one and a half of the sample absorption at 0 cm south. Although specific embodiments of the present invention have been illustrated and described, it will be apparent to those skilled in the art that various other changes and modifications can be made without departing from the spirit and scope of the present invention. —__ _____- 50-

Guanjia County (CNS) A4 Specification ⑵G (Please read the notes on the back before filling this page) '装 ί——rlr — .1 ------ * ^ ί'. 翅 济 ί, Γν.% Printed by the Property Agency Staff Consumer Cooperative

Claims (1)

434003 A8 BS C8 D8 Printed by the Central Laboratories of the Ministry of Economic Affairs, Masonry Consumer Cooperatives I. Patent application scope 1, an absorbent article having a body surface and a clothing surface and containing a liquid permeable surface layer, which is provided by the surface layer A barrier that inhibits re-wetting, in which the surface layer has a low 衿 488i7 / 'i cm .................. ............. Compressibility; ----------------- a configuration below the surface and at least At the back of Zhou Yuanyu of the absorbent article, the liquid-impermeable backing layer is connected with the absorptive core disposed between the surface layer and the backing layer. The absorptive core has a high internal surface area, which can generate high capillary pressure to enhance the deposition. Absorption of body fluid on the surface of the body; wherein the surface layer cooperates with the core to provide liquid absorption of less than 55 seconds for penetrating and rewetting of less than 30 milligrams "I. Γ, 5. 卜 2 —An absorbent article that absorbs the surface of the body and clothes of Yang Zezhen cuisine, and contains a liquid permeable surface layer, which provides a re-wetting resistance Barrier, wherein the surface layer has a compressibility of less than 488 g / cm3; a back layer disposed below the surface layer and at least at the periphery of the absorbent article is impermeable to the liquid connected to it: and disposed on the surface layer and The back layer asks an absorption core, which has a high internal surface area, which can generate high capillary pressure to enhance the absorption of body fluids deposited on the body surface; wherein the surface layer cooperates with the core system to provide absorption Droplet acquisition time for objects below 30 seconds and rewetting below 30 mg. < -51-n »^^^ 1 ^^^ 1 mf (Read the notes on the back of the poem before filling in this page) • C This paper size applies to China National Standards (CNS) A4 (210X29? mm) Printed by the Central Workers ’Cooperative Bureau of the Ministry of Economic Affairs of the Male Workers Consumer Cooperative 4340 03 a8 C8 · D8 VI. Patent Application Fan Yuan 3. An absorbent article which has the surface of the body and hips and the surface of clothing and contains a liquid-permeable surface layer. The surface layer provides a barrier to suppress re-wetting; a δε is a back layer that is impermeable to the liquid connected to it at least around the absorbent article; and an absorption core disposed between the surface layer and the back layer The absorbent core has a high internal surface area, which can generate high capillary pressure to enhance the absorption of body fluids deposited on the body hip surface: wherein the absorbent article has a panel softness between 30 and 60 PSU and the surface layer Cooperate with this core system to provide droplet absorption time of less than 30 seconds and rewetting of less than 30 mg to the absorbent article. 4. An absorbent article having a body surface and a garment surface and containing a liquid-permeable surface layer, the surface layer providing a barrier to prevent rewetting, wherein the surface layer has a content of less than 0.035 g / cm2 Surface density; a back layer disposed below the surface layer and impermeable to the liquid at least in the perimeter of the absorbent article: and an absorption core disposed between the surface layer and the back layer, the absorption core having a high internal surface area , Which can generate high capillary pressure to enhance the absorption of body fluids deposited on the body surface: wherein the surface layer cooperates with the core system to provide the absorption object with a droplet acquisition time of less than 30 seconds and a time of less than 30 mg. Back to wet. -52- This paper size is in accordance with Chinese National Standard (CNS) A4 specification (210 × 297 mm) < 锖 Please read the notes on the back before filling in this page) 'Packing. Order S 0088 ABCD 434003. VI. Patent Application Park 5.5. An absorbent article having a body surface and a garment surface and a surface layer permeable to a liquid skull, the surface layer providing a barrier to prevent re-wetting; a configuration disposed below the surface layer and at least The back layer surrounding the absorbent object and the liquid layer connected to it are impermeable; and the absorption core $, which is arranged between the surface layer and the back layer, and the absorption core .......: — Μι -...... ..........-* · * 'is attached to the inner surface of the body), which can generate high capillary grinding force to enhance the surface of the body «surface Absorption of body fluids on the surface; 〆., -------- · .......... ', where the absorption article has a response of 30 Group softness rabbit ochre color This color center cooperates to provide the absorbent object with low-level 3-0 pairs ~) droplet acquisition time and rewetting below fdl grams. One------------------------------------------------- ------ · ~ · 6. The absorbent article according to Sgt. 1 to 5 of the patent application Fangu, wherein the at least part of the absorbent core has an average absorbent pressure greater than 7 cm. 7. The absorbent article according to item 6 of the patent application park, wherein the absorbent core has an average absorbent pressure between 7 cm and 25 cm. 8. The absorbent article according to any one of items 1 to 5 of the patent application group, wherein the surface layer contains a formed thermoplastic film having a plurality of macro holes and a plurality of micro holes, wherein the zone between the micro holes and the macro holes The area also provides multiple micro, discontinuous, spaced areas containing low surface energy material deposits, which can create surface energy gradients between the deposits and the polymeric structure of the underlying forming film. 9 The absorbent article according to any one of the items 5 to 5 of the patent application park, which is ____-53-The paper size is suitable (⑽) Α4ΐ! ^ · (210X297 mm) _________- I (Please read the back first (Note the $ items, then fill in this page) Order the print of A8 B8 C8 D8 4 3 4 0 0 3 by the Central Standards Bureau of the Ministry of Economic Affairs. 6. The surface layer in the patent application contains solid materials with low surface energy deposits. Woven material, which can create a surface energy gradient between the sediment and the polymeric structure of the underlying non-woven material "10. An absorbent article according to any one of the claims 1 to 5 of the scope of patent application, wherein the surface layer contains a non-woven material Laminates of woven materials and formed thermoplastic films. Non-woven materials have a low surface energy material deposited on a surface that is opposite to the surface connected to the thermoplastic film to produce a laminate. The low surface energy material can be deposited under the A surface energy gradient is generated between the polymeric structures of the non-woven materials "11. According to the absorbent article of any one of items 1 to 5 of the patent application scope, wherein the absorbent core contains a high internal phase emulsion Polymer foam. 12. The absorbent article according to any one of claims 1 to 5 of the patent application range, wherein the absorbent core contains a chemically thickened, tangled and curled filler fiber, a mixture of high surface area fiber and thermoplastic bonding fiber. 13_ An absorbent article according to any one of claims 1 to 5, wherein the absorbent core is an air-laid woven fabric containing an essentially uniform mixture of hardwood fibers and softwood woven fabrics. 14. The absorbent article according to item 12 of the patent application park, wherein the core further contains superabsorbent particles. 15. The absorbent article according to item 13 of the patent application park, wherein the core further contains superabsorbent particles. 16. The absorbent article according to any one of claims 1 to 5, wherein the absorbent article further contains an acquisition component, which is a model adhered to the surface layer to create an unadhered window, wherein the acquisition component is placed in _ -54- tPlease first read the notes on the back of the feed before filling out this page) -u J] I JH. Order the paper size of the Central Ladder of the Ministry of Economic Affairs and the Ministry of Economic Affairs and Consumer Cooperatives to print this paper using Chinese National Standards (CNS) (2丨 0 X 297 mm) 434003 AS B8 C8 · D8々, the surface layer of the patent application Fanyuan is between the absorption core, and the absorption core contains cellulose weave, two-component fiber, superabsorbent particles and emulsion binder Multi-bonded air-laid non-woven materials. (Please read the note on the back before filling in this page) Pack--^ 1_L—. Ordered by the Central Standards Bureau of the Ministry of Economic Affairs, Printed by the Consumer Cooperatives -55- This paper size applies to China National Standard (CNS) A4 (210X297 mm)