TW391869B - An absorbent article incorporating liquid barriers with sealing coating - Google Patents

Description

Employees' cooperative of the Central Standards Bureau of the Ministry of Economic Affairs printed A7 ^ _________ B7_ V. Description of the invention (1) The present invention relates to absorbent articles, such as diapers or incontinence protectors, which are more effective for wearers than known articles of this type Seal effect. Such an absorbent article according to the present invention includes a liquid-impermeable sheet, which is used to rest against the distal side of the wearer when in use; an absorbent body; and a liquid-pervious sheet on the top ( So that when the article is in use, the top sheet rests on the side closest to the wearer). When the absorbent article is a diaper or incontinence protector, the article also includes elastic side flaps or wings (the side flaps or wings extend laterally on the two sides of the absorbent body); and have elasticity The component (this component extends longitudinally along at least the free side edge portion of the flank) is used to form a crossover component of the article when in use, and the function of the flank and the elastic component makes the absorption Items can fit the wearer. These elastic parts can be used as leg elastics after the item is worn out. Therefore, when the article is put on, the elastic member is stretched out and the side wings abut the wearer. Currently available absorbent articles have very high absorbance and can retain liquids under pressure. The most serious problems occur in situations of rapid liquid discharge. In these examples, it is necessary to first pass a large amount of liquid through the top permeable sheet, and then absorb and disperse therein through the absorbent body. This situation does not happen immediately. The time required for the liquid to pass through the top sheet may take up to 2 minutes, during which time the liquid will flow to the edges of the article and thus leak out. These problems are solved with the help of so-called liquid barriers or inner sleeves or side flaps to prevent liquid leakage in the event of rapid liquid discharge. The original purpose of this sleeve was __ -4- "Zhang Zhiyuan is applicable to the Chinese public chu)-:----- H---ιί I n-II n (Please read the precautions and notes of the back first Refill this page) Printed by the Consumer Standards Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs A7 s__B7__ V. Description of the Invention (2) To preserve the excrement and its surroundings, a part of the top sheet that is permeable to the liquid is along an elastic line It is formed by folding. Recently, manufacturers have begun to manufacture the sleeve from a liquid-impermeable material so that the liquid can also retain liquid. When the leg elastic member on the absorbent article is stretched out and the article is fastened to the wearer When the person is on the body, the elastic member of the liquid barrier layer is also stretched out at the same time, so the barrier layer is erected. The elastic member of the liquid barrier layer causes the edge of the barrier layer to rest on the wearer under tension. Then the erect The liquid barrier layer forms a "groove" under the wearer, so that it can hold a large amount of rapidly discharged urine during the time it takes for the liquid to pass through the top liquid-permeable sheet. "To improve the effectiveness of this liquid barrier layer The mouth test has so far been directed towards the use of denser materials and relatively large side flank. However, one disadvantage is that the liquid will rise and fill the upper edge of the barrier layer and when the amount of liquid discharged is excessive or when wearing The person sitting or lying down causes leakage when pressed together into the space between the erected liquid barriers. Therefore, currently useful absorbent articles, such as diapers or incontinence protectors, may include means to be placed against the wearer. Around the thigh and fit the article to the wearer's longitudinal edge along the outside of the sealed edge of the article, as well as a pair leaning inside the outer longitudinal edge and used for rapid liquid discharge (ie, not the object's Immediately absorbed by the absorbent body) to form an impermeable inner barrier sleeve or liquid barrier layer. These inner sleeves should be able to withstand a fairly high liquid pressure for more than a limited period of time < for a limited time After this period of time has elapsed, the liquid will be absorbed by the absorbent body. For example, a side sleeve can also be used on a sanitary napkin. Available also includes a device that can seal the absorbent The horizontal sleeve of the main body is the item of the horizontal sleeve. This paper size is applicable to the Chinese National Standard (CNS) A4 specification (2 丨 0 > < 297 mm) (Please read the precautions on the back before filling in this page ) k ·

* 1T

Printed by the Consumer Cooperatives of the Central Bureau of Standards of the Ministry of Economic Affairs " Some are absorbent products without internal liquid barriers as previously described. In this example, the outer longitudinal sealing edge forms the sole liquid barrier layer of the absorbent body. Others are absorbent articles having a liquid-impermeable sheet that is used in close proximity to the wearer during use and the elastic threads combined to fit the article to the wearer. When the absorbent article is put on, the liquid-impermeable sheet includes at least one hole for aligning the wearer's anus with the urethral hole. At least a portion of the hole or holes is provided with an elastic member so that the edge of the hole lies against the wearer and thereby forms a seal. Located below the liquid-impermeable sheet is an absorbent body enclosed by a liquid-permeable sheet and a liquid-impermeable sheet such that the absorbent body is suspended below the wearer, and the The liquid-impermeable sheet is placed on the distal side of the absorbent body. A portion of the inner sleeve is a sheet comprising a thin barrier layer that is substantially liquid-impermeable and inelastic; for example, a non-woven fabric, and an elastic member that can be folded or folded together and should be worn against The edge of the liquid barrier layer. The inelastic and non-elastic material is fastened to the liquid-permeable top sheet along a longitudinal edge or fastened to the bottom of the object along the side edge of the liquid-impermeable sheet so that liquid cannot pass through the two sheets Β The elastic member is fastened along the other edge of the inelastic material to close together the liquid barrier layer and the wrinkled edge of the shape, so that after the object is put on The elastic member is stretched. The corrugated edge generally includes an elastic line disposed in a channel of the inelastic material. The channel is made by folding the barrier and stitching one of the edges of the material * 6-^^^ 5 uses Zhongguanjia Standard (CNS) A4 specifications (2 丨 〇 > < 297 公 董} ---

Employees' Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs, A7 B7 V. Description of Invention (4). When the absorbent article is put on, a part of the wrinkled edge will be stretched, and the extent of the stretch depends on the size of the wear and how the article is worn. It is also possible to use an elastic member comprising an elastic film. In this example, the elastic member will not be enclosed in a channel, but will be fastened along a first longitudinal side edge against the other edge of the inelastic material in a pre-stretched state. The second side edge of the elastic member is free and when the article is put on, it is next to the wearer. Also, the first longitudinal side edge of the elastic member may be fastened directly in a pre-stretched state against the top liquid-permeable sheet or the bottom liquid-impermeable sheet. In this example, the barrier layer would consist of only the elastic film. The present invention will now be described with reference to the accompanying drawings, wherein Figs. La and b respectively illustrate the measuring equipment used to determine the leakage pressure or penetration pressure of a material that is not used and that is used in a stretched state, and Fig. 1 C Shows a principle of how to determine the leakage pressure; * Figures 2a and b illustrate the schematic diagram of holes in a liquid barrier layer and the principle of determining the weighted average cosθιη and its radius; Figures 3a and b illustrate a traditional, vertical Diapers or urinary incontinence protectors for liquid barriers; Figures 4a and b illustrate the calculation principles for available elongation or stretching; Figure 5a is a lack of illustration of the measured penetrating pressure of three different liquid barriers; Figure 5b is 圊 5a One of the best liquid barrier layers has a measured penetration and calculated value at different available elongations. The comparison between the measured value and the calculated value is illustrated. Example-7- This paper size applies Chinese National Standard (CNS) Λ4 specification (210X 297 mm) (Please read the precautions on the back before filling this page)

1T A 7 —__— ._B7 、 Measurement value of penetration pressure (5) of the invention; Circle 7 is the calculated value and measurement of penetration M under different available elongation in one embodiment of the present invention in FIG. 6 The comparison diagrams of the values are illustrated; 圏 8-13 are photographic replicas of different liquid barrier layers under different available elongations taken by an electron microscope; and Figs. 8a-12a are drawings corresponding to the photographic replicas of Figs. 8-12. An absorbent article, such as a diaper, is made to be used by people of different sizes. This is accomplished by collapsing or wrinkling the liquid barrier layer and side edges with the help of elastic members. Β These liquid barrier layers and side edges will be stretched to varying degrees depending on the size of the wearer, and the barrier layer The tension at the edges will vary depending on the size of the wearer. Β The tension in the elastic part of the barrier layer is expected to be important for studying the sealing properties of the liquid barrier layer, and the extent to which the barrier layer is stretched is also important. . When considering the extent of stretching of the liquid barrier layer, the word "available stretch or stretch" can be used. The Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs is printing absorbent articles, such as diapers. The elastic material with stretchability is firmly fastened and “locked.” On non-stretchable materials, this non-stretchable material is generally Non-fabric β When the absorbent article is in use, the elastic material cannot be stretched more than when the absorbent article is manufactured, because the elastic material is firmly locked to the inextensible material club. This is shown in Figure 4a At this time, the elastic material has a length of l. When the diaper is placed on the wearer, it will be slightly folded. After that, the elastic material will shrink to a smaller length Lx. (CNS) A4 specification (21 Ox 297) A7

The available stretch or elongation, X, is the degree to which the material can be stretched from the user state to the product's maximum stretch state. This can be represented by the formula: 1 ^ 1 ^ ((also / 1〇〇) + 1), where meaning is the available stretch or elongation, which is expressed as a percentage. The test device is constructed to study the sealing effect that can be achieved between the liquid barrier layer or some other corrugated barrier layer and the wearer's skin. Β This device is shown in Figures la, lb and 1c, and it contains a A Plexiglas stand with a base plate 3 and an upright support plate b. A first semi-cylindrical element 1 which opens upward is fastened horizontally to the upright support plate b and is provided with a scale around it to indicate the available extension or extension. One end of the semi-cylindrical element is attached to the support plate, and the other end has an end wall 1 ′. A hole 2 is provided at the bottom of the semi-cylindrical element, and the hole is provided with a vertical filling tube 3 and an inclined measuring tube 4 ', each of which has a scale indicated by a water column. The device also includes a loose second semi-cylindrical element 5 whose diameter is slightly larger than that of the first semi-cylindrical element and its one side is open and the other end is an end wall 5 '. Printed by the Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs as shown in Figure lb. A measurement operation is completed by placing a liquid barrier layer on the periphery of the first semi-cylindrical element and fastening the barrier layer on the upper edge. . The elastic member 7 is directly oriented toward the attachment point of the semi-cylindrical element to the support plate b, and the material of the liquid barrier layer extends along the end wall of the other end of the first semi-cylindrical element 1 and is folded up. The elastic member is fastened along the scale on the semi-cylindrical element so that the available extension or elongation can be measured. The end wall 5 of the second semi-cylindrical element 5 rests on the -9 -This paper size is in accordance with Chinese National Standard (CNS) A4 (210X 297 mm). Printed by the Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs. A7-^ ___B7_ V. Description of the invention (7) — the end wall of a semi-cylindrical element 1 Γ, so that the folded portion of the upper end of the barrier layer is located between the two end walls, and the two end walls are pressed with a clip 10, so as to obtain a small space between the two cylindrical end walls. Gap 9. Synthetic urine is introduced through this vertical tube 3. The liquid barrier layer is first filled to fill the gap between the semi-cylindrical elements, and then when a liquid column is formed in the pipes 3 and 4, a pair of hydraulic pressures on the edge 7 of the elastic member is established. This pressure can be read. When the liquid continues to be introduced to the penetrating pressure point, leakage starts to occur at arrow B (Figure ic). Two types of liquids are used to think about the type of the barrier layer, Huggies erect folds, Pampers erect folds, and a liquid barrier layer 'Peaudouce', which has not yet been manufactured. Elastomers have been tested in this device. With elastic components, their tendency to leak when stretched and locked at different available elongations is measured. Because the barrier layer is stretched to a certain degree, the liquid pressure when the liquid leaks, that is, a barrier layer with an available stretch is measured with the help of the test equipment and it can be found that the pressure is according to the The degree to which a wrinkled or collapsed edge is stretched varies. The measured values are shown in Figure 5a. However, as the results in the circle show, different barrier layers have different penetration pressures under the same available stretch or elongation. Therefore, the sealing effect is affected by factors other than the tension of the elastic material. The present invention begins with an attempt to provide an improved sealing effect based on factors other than the actual tension within the elastic member. Leakage does not occur only because of the contact between the elastic member in the barrier layer material and the wearer's skin, but it mainly occurs through the wearer's skin. -10- This paper standard applies to China National Standard (CNS) A4 specifications. (21〇χ297) (Please read the notes on the back before filling in this page)

、 1T -I-1 I- I-1 i 1--. Printed by the Central Standards Bureau of the Ministry of Economic Affairs and printed by A7 B7. V. Description of the invention (8) Inside the wrinkled edge of the barrier layer material The theory of penetrating holes or channels formed between the folds has been made in an effort to produce a mathematical model from which the osmotic pressure can be theoretically obtained and how those parameters should be changed to achieve an improvement Its sealing effect. The capillary pressure on the pores in the porous structure can be calculated using the Lap 1 ace equation. According to the Laplace equation, the capillary pressure Δρ = 2τ (: 050 / Γ, where r is the liquid surface tension 'Θ is the wetting angle of the liquid to the material in the capillary' and r is the radius of the capillary. When。 is greater than 90. When ^ is negative and ΔP is also negative. The capillary wall system hydrophobicity and its result ΔP can be expressed as the penetration pressure, which is the maximum pressure that a capillary or hole can withstand. When Θ is When it is less than 90 °, the capillary wall is hydrophilic and ΔP and cose are positive values. The liquid system is “sucked into” the hole. When studying the pressure in the capillary or hole, the tube wall includes several materials, such as by The ratio of each material around the hole formed between the skin and the lining in the liquid barrier must be weighted together to provide an average value of cos Θ, after which it is expressed as cosm. Therefore The pressure is ΔP = 2 7 cos Θ m / r. In the current example, the wall of the hole includes a part of the hydrophilic material, that is, Pi Guang, which has a wetting angle of less than 90 °, and a part of the hydrophobic material 'its Is in the liquid barrier In the layer, it has a wetting angle greater than 90 °. Cos Θ m is the weighted average of the cos 0 value of the hole wall, and is calculated in the manner described in 圊 2a, where a represents the hydrophobic wall The "peripheral part" and B indicate the surrounding part of the hydrophilic wall, a + b = 1. In addition, c0s0in -11-This paper size is applicable to the Chinese National Standard (CNS) A4 specification (210X 29 < 7). (Please read the back first Note for the poor ^ and fill in this page), 1T B7 V. Invention description (9) equals A. cos0f <) b + B. Cos0fil. As described below, tests are performed to check whether the described mathematical model can be used as a basis for calculating the penetration pressure. The wetting angle of the skin varies depending on the state of the skin, that is, the skin is clean or dirty. Contains an average of 74 skin wetting angles. The angle of the similar Gurun 'house is 77. Piexiglas measuring equipment was used for comparison purposes. The measurement of the liquid barrier layer for commercial products yielded the best sealing results as shown in the figure, that is, the Hatch upright fold has a wetting angle of 120 °. The liquid used is synthetic urine. τ is the surface tension of synthetic urine, that is, 0.06N / m. Using an electron microscope, under different available elongations, the research liquid will face the junction of the array wall facing the measuring device. As shown in Figure 8_12 and Figure 130, a magnification of 130 × A penetrating hole is formed between the thread or fiber of the barrier layer material and the piexiglas wall of the test device. This hole system is considered as a capillary, where r = the largest possible radius of the circle that can be circled in the channel, as shown in Figure 2b. The penetrating holes are described in 囷 8a-12a. The following hole radii are obtained from different available elongations, as shown. Printable usable hole radius 105% 0.0208 20¾ 0.0812 30¾ 0. 1208 40% 0.1458 50% 0.1458 Note: The hole radius is measured on the photo at 10% of available elongation The scale is applicable to the Chinese National Standard (CNS) A4 specification (210X297) while A7 ______-__ B7 V. Description of the invention (1) The system is very difficult ', so the displayed value may not be reliable. The cross marks in Figs. 8a-12a indicate the lateral end points of the hole used to calculate the hydrophobic to hydrophilic ratio around the hole. The length ratios between the hydrophobic and hydrophilic surfaces in the pores at different available elongations are shown in the table below. Available elongation 10% 20% 30% 40¾ 50% Hydrophobic surface 39% 39% 32% 39% 50% Table *%%%%% Pro 61 11 oo 1 6 6 6 5 Side (Please read the precautions on the back first (Complete this page) k Figure 5b illustrates the comparison between the measured penetration pressure at this test setting and the penetration pressure calculated using the equation above. Since the calculated and measured penetration pressures are quite consistent, by changing the barrier layer | ΔΡ | 'iZycosein / rl' to increase this value, it can improve the sealing effect of the absorbent article on the wearer's skin. That is, the tension in the elastic member will be quite high to prevent the liquid barrier layer from allowing the liquid Zhao to overflow at a lower pressure due to the looseness of the elastic member and to promote the barrier layer to self-wear through the infusion of the liquid column The "easy" separation of the body allowed it to release contact with the surface of the junction. 1 eight?丨 can be improved by increasing 丨 2 7 ^ 〇3 0111 /]: 丨 product. It is therefore an object of the present invention to provide an absorbent article having an improved sealing effect on the wearer's skin. The purpose can be achieved with an absorbent article, such as a diaper or an incontinence protector. 'The article includes a diaper which is used to lean against the wearer when used. 13- This paper applies the Chinese National Standard (CNS) A4 specification ( 2] 〇 × 297 mm)

* 1T Printed by the Central Standards Bureau of the Ministry of Economic Affairs of the Shell Consumer Cooperatives. Printed by the Central Standards Bureau of the Ministry of Economic Affairs. A top sheet immediately adjacent to the wearer; an absorptive body placed between the two sheets; and at least one longitudinal elastic liquid barrier containing a substantially liquid-impermeable material at each longitudinal centerline of the liquid-permeable sheet On one side, one of the longitudinal edges is the free edge and its face is facing the wearer and the other longitudinal edge is fastened to the top of the article. The liquid-permeable sheet is fastened to the top or fastened to the longitudinal edge of the article. Where the liquid-impermeable sheet is located, at least one of the free edges of at least one liquid barrier layer on each side of the centerline of the absorbent body is treated with a non-adhesive sealing medium, the sealing medium being in use , At least partially fill any penetrating holes formed by the free edge of the liquid barrier layer and the surface of the wearer's interface 'and / or in the article After being put on, the surface of the interface is smeared and the wetting angle of the liquid pan to the skin is thereby increased. The object of the present invention can also be achieved by an absorbent article, wherein the article includes a close-to-wearer when in use. And a substantially liquid-impermeable sheet that incorporates an elastic piece that fits the article to the body of the wearer, the sheet including a hole for aligning the wearer's anus with the urethral orifice, which is elastically retractable The sealing edge is placed around the hole in the substantially liquid-impermeable sheet, and one of the absorbent bodies is placed on the edge of the substantially liquid-impermeable sheet leaning against the wearer's distal side during use. Wherein the absorbent body is enclosed between a liquid-permeable sheet on the side of the wearer and a substantially liquid-impermeable sheet on the distal side of the wearer, and at least one of the sealing edges is Adhesive sealing medium treatment, when the sealing medium is used, at least a part of it is filled with any one. -14- This paper standard meaning towel _ house standard (CNS) from the specification Qχ 297 Chu) (Please read the back first Notes on filling out this page)

* 1T Printed by the Central Bureau of Standards of the Ministry of Economic Affairs, Shellfish Consumer Cooperatives, printed A7 ------- ________ B7 V. Description of the invention '' A through-hole formed between the free sealing edge and the surface of the junction on the wearer, and / Or when the article is put on, apply the interface and thereby increase the wetting angle of the liquid to the skin. When the non-adhesive sealing medium at least partially fills a hole, the radius of the hole decreases and the | 2rc0S0ra / r | product increases. When an increase in wetting angle is achieved, the same result applies. The edges of the liquid barrier layer or the sealing edge can be easily coated with a sufficient amount of sealing medium to the holes and partially fill the holes, that is, reduce the radius of the holes, and apply the skin of the wearer. The sealing medium can be applied with a very thin layer ' for transmission to the wearer's skin when the article is put on. However, the sealing medium is more suitable for applying a sufficient amount to reduce the radii of the holes and to apply to the wearer's skin. The sealing medium may be applied in an amount corresponding to 01_1OOg / m2, preferably 1-30g / m2, especially 2_20g / m2 and preferably 3_1g / m2. For example, 'the sealing medium may be applied in an amount equivalent to about 20 g / m2. Because Pi Guangxi is hydrophilic and has a about 74. The average wetting angle is therefore increased for the sealing medium to about 90.疋 is more appropriate, making the skin hydrophobic. The sealing medium preferably has a temperature higher than 95. The wetting angle is preferably at least 10 (r.). The sealing medium preferably has rheological properties, such as being substantially hard or viscous at room temperature, and suitable for forming a fluid state at body temperature. Apply to the skin of the wearer. The sealing medium must not become excessively fluidized at body temperature and flow on the skin of the wearer and stain the clothes of the wearer. The sealing medium should not be too hard at room temperature because of its Will be block or "crumb" ___ -15- This paper ruler ^ suitable wealth (CNS) M size 〇 297 male thin) ~ --- k ------ ΐτ __ ^ Please read the note on the back first Please fill in this page again) Printed by A7 ~~ ___ B7 of the Consumer Cooperatives of the Central Bureau of Standards of the Ministry of Economic Affairs 5. Description of the invention (13) Loose on the liquid barrier layer or the sealing edge. Those skilled in the art can determine which sealing medium has the proper rheological properties after experimental testing. Except that the sealing medium needs to have the correct viscosity and fluidity to fill the holes, and has the correct surface energy for the function of the liquid barrier layer, it should preferably not penetrate into the skin or release harmful substances or the skin in general. Functionally has any other negative effects. And the properties of the sealing medium will not change over time. The sealing medium preferably has a friction that reduces the wearer's skin. To this end, ointments including fats / oils of animal, vegetable or petrochemical origin can be used. An example of such an ointment is Silonsalva, Perstorp Pharma, which is derived from the semi-solid oily substance of petroleum (Vaseline®). Water / oil emulsions can also be used, which are hydrophobic. Other possible sealing media, such as containing 10-95% polysiloxane plasticizer. It is easy to plasticize or flow uniformly at 20 C, and contains 5-90%, preferably 5-50%. An additive capable of curing the plasticizer on the barrier layer as a semi-solid or solid preparation at 20 ° C. The additive preferably has a melting point of at least 35 ° C, preferably at least 4 (TC, and fatty acid esters or fatty acid amines with several hydroxyl groups, fatty alcohols with 14-22 carbon atoms, fatty acids with 12-22 carbon atoms, fatty alcohol ethoxy groups with u-2 and 2 carbon atoms Chemical compounds, or mixtures thereof. Suitable sealing media are described in ^ 96/16681. The sealing media used must be picopathologically acceptable and must not cause irritation or allergic reactions. -16- This Paper size applies Chinese National Standard (CNS) Λ4 specification (210X297 mm): ml. ^ Ί—-I 1 ^ 1 I — ^ ϋ ^^ 1 Ix- ^ · ^^^ 1 n I -I-i, ceJ (Please read the precautions on the back before filling this page) A7 B7 printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs 5. Description of the invention (14)- -One advantage of the article of the present invention is that the wearer's skin can easily slide in and therefore generate less irritation than traditional articles of this type. The present invention is more detailed with reference to specific embodiments and accompanying drawings The description is as follows: Example FIG. 3a shows a conventional diaper or urinary incontinence protector 20, which includes a liquid-permeable top sheet 22, an absorbent sheet 23, and a liquid-impermeable bottom sheet 21, which are formed by two Two lateral edges 24, 25 and two longitudinal edges 26, 27 are cut. The article described here also includes longitudinally extending leg elastics 28 and an upright liquid barrier layer 29 on the side of each longitudinal centerline. Figure 3b is a cross-sectional view illustrating the construction of the standing liquid barrier layer comprising a liquid-impermeable sheet 12, wherein the free edge of the sheet is bent along two stretched elastic lines 13. The line 13 is To crease the sheet 12. In two tests, different wetting angles were changed. In the first example, a plastic film with a wetting angle of 97.5 ° was stretched beyond the first semi-cylindrical Pl The surface of exiglas. This is equivalent to applying a treatment to the barrier layer to make the wearer's skin feel a higher wetting angle. This is hydrophobic and is different from the average skin wetting angle of about 74 ° The result of the change in the angle of running fish (the middle curve) is the same as the seal achieved by the liquid barrier layer of the Hutch pendulum lining (the bottom curve). The comparison of the effect is shown in Figure 6a. It can be shown that the sealing effect can be improved in this way. The top curve in Figure 6a shows the use of -17 treated with petroleum jelly. This paper size applies Chinese National Standard (CNS) A4g (210X 297 mm) (Please read the precautions on the back before filling this page),? Τ A7 B7 V. Description of the invention (15) Measurements obtained by liquid barrier layer. Vaseline ③ has 100. Wetting angle. The holes are partially blocked by vaseline, that is, the radius of the holes is reduced, and the wearer's skin is also coated ', thereby increasing the wetting angle of the skin. As shown by the curve in Figure 6a, the test achieved a considerable improvement over the improvement achieved by changing the wetting angle on the skin alone, although at the same time the liquid barrier layer was also applied by vaseline, and thus Reduce its Run angle from 120 to 100. As a result, a reduction in the wetting angle in the barrier layer is obtained. Fig. 7 is a graph showing the calculated value and the test value of the sealing effect obtained when the angle of wet fishing is changed. The test value is obtained by covering the PI ex il as with the aforementioned plastic film, and the test value is equivalent to the middle curve in the graph ga. The calculated value is quite consistent with the test value. Figure 13 is a reproduction of an electron micrograph of a liquid barrier layer with a 30% available elongation or extension, in which the barrier material is coated with vaseline. This sealing medium has the sealing properties as shown in the curve of 圊 6. The photo shows that the woven fabric in the barrier layer material has a thick coating that increases the diameter of the fiber and thereby reduces the size of the penetrating holes. Although the invention has been described above with specific, non-limiting examples, it is understood that the invention can be modified within the scope of the following patent applications. In particular, the outer barrier layer, i.e. the leg elastic companion, of the article which does not have an internal liquid barrier layer which can be treated with a sealing medium. The inner and outer barrier layers can also be treated in accordance with the invention. In some examples, it may be advantageous to handle only the external barrier layer, even when the item includes an internal liquid barrier layer. The transverse liquid barrier layer can also be treated with a sealing medium. -18- This paper size applies Chinese National Standard (CNS) A4 specification (210'〆297 mm) /-(Please read the precautions below and fill out this page first) * vs Consumers Cooperative of Central Standards Bureau, Ministry of Economic Affairs Printed A7 B7 5. Description of the invention (16) Component reference table a Substrate b Vertical support plate 1 First half cylindrical element 1 'end wall 2 Hole 3 Vertical vertical filling tube 4 Inclined measuring tube 5 Second half cylinder 5 'end wall printed by the Ministry of Economic Affairs of the Central Bureau of Standards, Shelley Consumer Cooperative (please read the precautions on the back before filling in this tribute) 21 Liquid-impermeable bottom sheet 22 Liquid-permeable top sheet 23 Absorbent sheet 24, 25 Transverse edges: 26, 27 Longitudinal edges 28 Longitudinal leg elastics 29 Upright liquid barriers -19 · This paper size applies to Chinese national standards ( CNS) A4 size (210X 297 mm)

Claims (1)

Ilf II Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs A8 B8 C8 D8 VI. Application for Patent Scope No. 87102700 Patent Reexamination Case Application Scope of Patent Amendment ~ Revision Date: July 88 1. An absorbent article, including An absorbent body (23) disposed between a liquid-impermeable bottom sheet (21) and a liquid-permeable upper sheet (22), the liquid-impermeable bottom sheet (21) intended to be in use On the distal side of the wearer, the liquid-permeable top sheet (22) is intended to be on the immediate side of the wearer when in use, and 1) on each side of the centerline of the top sheet, at least There is a longitudinally extending elastic liquid barrier layer (29), the barrier layer is made of a substantially liquid impermeable material (12), and is along or adjacent to an individual longitudinally extending side end of the object, and Is fixed to the top or bottom sheet (21, 22), and the barrier layer contains a free-sealed edge facing the wearer, or 2) above the top sheet (22), there is a sheet intended to abut the wear A substantially liquid-impermeable top sheet, the top sheet having elasticity, which allows the object to conform to the shape of the wearer, and includes a plurality of apertures for aligning the wearer's anus and urethral orifice. Around the orifice, a plurality of elastically crimped sealing edges are provided in the top sheet, which is characterized in that at least the sealing edges are treated with a non-adhesive sealing medium. When used, the sealing medium will be at least Partially fill any penetrating holes formed between the free edge of the liquid barrier layer and the interface on the wearer, and / or the sealing medium will be applied to the interface when the article is put on To increase the wetting angle between the liquid and the skin. 2. If the absorbent article in item 1 of the patent application scope is characterized in that the size of this paper is applicable to China National Standard (CNS) A4 wash case (210X297 mm) (Please read the note f on the back before filling in this page) -20- Ilf II Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs A8 B8 C8 D8 VI. Application for Patent Scope No. 87102700 Patent Reexamination Case Application Scope of Patent Amendment ~ Revision Date: July 88 1. An absorbent article, including An absorbent body (23) disposed between a liquid-impermeable bottom sheet (21) and a liquid-permeable upper sheet (22), the liquid-impermeable bottom sheet (21) intended to be in use On the distal side of the wearer, the liquid-permeable top sheet (22) is intended to be on the immediate side of the wearer when in use, and 1) on each side of the centerline of the top sheet, at least There is a longitudinally extending elastic liquid barrier layer (29), the barrier layer is made of a substantially liquid impermeable material (12), and is along or adjacent to an individual longitudinally extending side end of the object, and Is fixed to the top or bottom sheet (21, 22), and the barrier layer contains a free-sealed edge facing the wearer, or 2) above the top sheet (22), there is a sheet intended to abut the wear A substantially liquid-impermeable top sheet, the top sheet having elasticity, which allows the object to conform to the shape of the wearer, and includes a plurality of apertures for aligning the wearer's anus and urethral orifice. Around the orifice, a plurality of elastically crimped sealing edges are provided in the top sheet, which is characterized in that at least the sealing edges are treated with a non-adhesive sealing medium. When used, the sealing medium will be at least Partially fill any penetrating holes formed between the free edge of the liquid barrier layer and the interface on the wearer, and / or the sealing medium will be applied to the interface when the article is put on To increase the wetting angle between the liquid and the skin. 2. If the absorbent article in item 1 of the patent application scope is characterized in that the size of this paper is applicable to China National Standard (CNS) A4 wash case (210X297 mm) (Please read the note f on the back before filling in this page) -20- A8 B8 C8 ----_____ D8 VI. Apply for a patent ^ I ~~~~~-Sealed edges are coated n Foot holes to fill these holes separately and smear the amount of the wearer's skin Sealing medium. 3. The absorbent article according to item 丨 or 2 of the scope of patent application, characterized in that the sealing medium is applied in an amount of-equivalent to 0.1-100g / m2 β 4 Article, characterized in that the sealing medium is applied in an amount equivalent to 1-30 g / m2, such as the absorbent article in item 4 of the patent application, which is characterized in that the sealing medium is An amount of 2-20 g / m2 is applied. 6. The absorbent article according to item 5 of the patent application, characterized in that the sealing medium is applied in an amount equivalent to 3-10 g / m2. 7. The absorbent article according to item 1 or 2 of the patent application scope, characterized in that the sealing medium has a value higher than 90. Of wetting angle. 8. The absorbent article according to item 7 of the patent application, characterized in that the sealing medium has a value higher than 95. Of wetting angle. And especially at least 100. Of wetting angle. 9. The absorbent article according to item 8 of the scope of patent application, characterized in that the sealing medium has at least 100. Of wetting angle. 10. If the absorbent article in the scope of patent application item 1 or 2 is characterized in that the rheological properties of the sealing medium are such that the sealing medium is substantially hard and viscous at room temperature, and at room temperature it is It has sufficient fluidity and can be applied to the skin of the wearer β U. For an absorbent article in the scope of patent application item 1 or 2, it is characterized in that the sealing medium is an animal, hawk or petrochemical source Fat or oil ointment, or a water-in-oil emulsion. Sakura (CNS > A4 Waki (210X297 mm) ''-• 21- (Please read the notes on the back before filling out this page) Order Printed by the Intellectual Property Bureau Staff Consumer Cooperatives