TW541169B - Absorbent article - Google Patents

Abstract

This invention is relative to provide an absorptive article with a high fitting property and a leak-proof property. This absorptive article comprises a surface layer 2, a back layer 3, an absorptive layer 4, and an anti-leakage wall 5 which erects in the neighborhood of both left and right side edges of the absorptive layer 4. An anti-leakage groove 8 is built-in on a surface layer side of the absorptive layer 4. The anti-leakage wall 5 contains a base wall part 5a, and an inner overhang 5b and an outer overhang 5c which overhang from an upper part of the base wall part 5 to inner and outer directions of the absorptive article 1. An elastic part 9 is arranged in the longitudinal direction on each of the inner overhang 5b and the outer overhang 5c. The inner overhang 5b is placed on the top of the absorptive layer 4 and outside of the anti-leakage groove 8.

Description

541169 V. Description of the invention (l) [Background of the invention The present invention is about ^ ^ sex articles; if you say more, the use of sanitary napkins or incontinence pads, etc. is highly absorbent and can prevent liquid mouth = a little thinner, The present invention relates to an absorbent diaper suitable for use in the Japanese Patent, and the disposable diaper No. 503 discloses a disposable outer edge, which is provided with a protruding m: the side of the body is further outside Leak-proof wall. The discarded diaper and the outer protrusions are in a zigzag state, and abut on the wearer's leak-proof wall, which is leaked. | On the thigh, in order to prevent the exudation of excrement, but because the front part of the front, the position is located on the protruding part, above the dustproof wall, so in the high Take ;; the situation :, and in this state, the two leaks are destroyed by two ^ κ, it is obviously no longer: liquid leakage phenomenon in the horizontal direction easily occurs at the position up to the outer side / the structure of the version As a result, the object of the present invention is to provide an absorbent article that leaks liquid. It can be prevented by injection N. In addition, the object of the present invention is to provide a pressure-absorbing and damaging leak-proof wall, so that it can be placed in an absorbent article due to its loading. To prevent liquid leakage, the invention is summarized.] The present invention aims to provide the following absorption objectives: an absorbent article, which is provided with a liquid; before the surface <page 4 9107107486.ptd 5. invention Note (2) layer, liquid impermeable back &quot; ^ 'layer between two layers of liquid retention f, which is sandwiched between the edges on the right sides of the surface layer f near each edge &quot; Absorbing J, the surface layer of the absorbing layer has a raised leak-proof wall, which is: a receiving article, which includes: a leak-proof groove formed into a fixed shape; And respectively protrude to the aforementioned ^ wall portion, and the base wall portion and the outer protrusion portion, and = the inner side of the article and the outer inner portion = the portion 'are respectively along the inner side: out = inner side extension At the same time, the output part and the externally placed elastic structural material are at the same time, = the direction of the long side of the external protruding part, above the distribution layer, and the return sheet is extended by the j part, and the position is at the position of the aforementioned absorber. It is more than the above-mentioned leak-proof groove. [Detailed description of the preferred specific example] The following 'in accordance with the present invention, advance with the present invention; implement the form, refer to the figure, the same as Figure 1 for the reason The physiological fatigue: 4 is the top view of cotton as the top sheet part of the absorptive name of the present invention is absorbed; FIG. 2 is a physiological hygienic diagram of a certain embodiment, and FIG. 3 is along the figure Sectional view taken on line Π_Π in 1. . The cross-sectional front view of the n-π line in FIG. 1 for those who do not follow / as shown in FIG. 1 to FIG. 3, the physiological hygiene% of this embodiment becomes = skin Λ for // for underwear 'so' The sanitary napkin 1 has a wide and negative shape, and includes a top sheet 2 which is a liquid-permeable surface layer, a back sheet 3 which is a liquid-impermeable back layer, and

Page 5 541169 V. Description of the invention (3): The absorbent body 4 is sandwiched between the thin layers at the top. At the top of the ^ ^ ^ night body to keep Η Ώ Biangu a a $ 隹 Physiological sanitary napkins around 1 and 2 suppress the absorption and absorption edge @ P = set a pair of leak-proof walls 5,5. From the absorption 1, the leak-proof walls 5 are respectively erected along the vicinity of its long side =. The left and right sides of the limb 4 are divided into two parts: the raw cotton section A, which is described below, and the excretory section A, and the material: facing with the raw cotton 1 "The wearer's row", while using the student: the square B and the rear section C, and the front section B and the rear position; and "C," is adjacent to the position on the 1st and the rear of the month. Here, the top sheet 2 of the raw cotton 1 is used to cover the top of the absorbent body ^, starting from the side of the absorbent body 4 and extending in the positive area, and the top sheet 2 is rolled and wound to the back sheet. The part μ top sheet 2 is made of a material known as the f technique, and the top sheet can be made of a non-woven fabric or an apertured film that is the same as the previous two sexes. The top sheet 2 is made of liquid impermeability. Back thin film with vapor permeability and liquid impermeability (preferably constituted by a laminate of water-based non-woven fabric 3b. ^ And the film sheet 3a with liquid absorption, noodle cake, when wearing a diaper # Place the film sheet 仏 so that the non-woven fabric 3b is disposed so that the non-woven make-up wears the clothes, and the fluffy pulp and the highly absorbent polymer = are facing the user. Covered with the wrapping paper, and Constitute the absorbent body 4. This mouthpiece is quilted with a thin cotton% back sheet 3. The side p of the absorbent body 4 is convenient for forming the side stopper 6. The side stopper 6 is extended to the outside at the beginning , Excretion of sanitary napkin 1 for casual use 90107486.ptd page 6

541169 V. Description of the invention (4) 'Wings and wings 7 of the part facing the part A'. In addition, it is wonderful; it is more extended to the evening! The side is formed-the dialogue of the wings of the wing 7: f is not shown in the picture, but the thin sheet 3 on the back and the ^ on the dress: / 'Form this to use a sanitary napkin! Fix the ball paper to protect the layer of the adhesive. The peeling is performed by the absorption sheet 1 + a ^ section sheet 3, and ^ the back end starts to extend out of the top sheet 2 and the back system are joined together to fix the Λ extended top sheet 2 and back sheet 3, mouth Together. A groove 8 is used for the absorber 4 &gt; π ^ _ 1 ·. For thirst prevention: the two pieces of parts are formed in a leak-proof shape with a closed shape, and the plug has an oval shape with a long axis in the length direction of the sanitary napkin 1 for physiological use, and, The portion located at the position facing the raw excretory portion A is bent to the sub-absorbent body 4 and the top sheet 2 to be integrated into a compaction to form the leak-proof groove 8. The soil-spreading f is arranged on the leak-proof walls 5 on the left and right sides of the sanitary napkin 1 in order to form a two-shaped sheet of D 'into a cylindrical shape, and process the band-shaped sheet into two; V The leak-proof wall 5 is provided with a base wall portion 5a, and an inner protruding portion 5b and an outer protruding portion 5c which respectively extend from the upper portion of the front U soil σ 卩 5a to the outside of the physiological hygiene. . &quot; 方 和 μ ^: 'It has a fixed end and a free front end, and at the end, "on the side impact piece 6. The aforementioned inner protruding portion ⑶ and outer = 5c, it is extended by Ke end. Out to physiology ° The inner protrusion 5b and the outer protrusion w cotton inner and outer. The Buwan protrusion 5c is almost along the water.

V. Description of the invention (5) ____ Extend to facilitate the distribution of the upper and lower parts of the inner extension 5b and 5C of the outer extension 5c at the position s; . Two inner extensions 讣 and outer extensions. In addition, the entire length of the two sanitary napkins 1 in the longitudinal direction is almost the same. The extension of the application portion 5b and the external extension portion 5c is formed on the two internal extension portions ^ along the length direction of each of the front end portions of the external extension portion 5C.当 # 平 性 结构 材 9,9. The material used as the elastic structure 9 does not have any special J $ 吸 吸 吸 吸 吸 聚 聚 聚 聚 聚 聚 聚 乙 义 义 聚 义 义 义 义 义 义 义 但是 '' '最好 最好 最好 稀 稀 烟 烟 ㈣ 构成 构成With materials. Natural rubber, as an elastic structure, or a film-like shape in the system = straight and f unstructured material 9. When the leak-proof elongation is formed, and the two elastic materials are fixed, the elongation of the fixing material 9 is almost the same using heat sealability or heat. In physiological use: / cotton '„Material I, the elastic structure 9 is contracted by mistake, and since; ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,-, == Leak wall 5. If ;; The shape of the physiological sanitary napkin 1 in the form is shown in FIG. 4 with the so-called two inner protrusions and the outer side; therefore, it is not easy to be affected by the deviation of the sealing effect of the wearing surface. Effect, which can be quite effective = prevent the phenomenon of liquid leakage caused by the position • Ptd 901074¾ page 8 541169 V. Description of the invention (6) J ί 配 ί ί 21 in the two inner extensions 5b and the outer side Under the condition that the wall 5 valley is easily crushed to the inside, the tension of the elastic structure 9 on the 31-side extension 5c can also be used to exert the ^ f tilt on the outer wall 5 to The strength of the foreign party, the person who guards the leak prevention 5 is ancient, and Yitian effectively prevents the leak prevention wall 5 from being squeezed down h, so as to maintain the two inner protrusions 5b and the outer protrusions. The tightness of the part 5C that is attached to the thigh part :: 出 · and the outer end of the middle part 5c, respectively, to stabilize the two inner protrusions 5 b and the outer protrusions step by step. Λ 5c To the horizontal direction of the projected operation to / sealing effect. The text was added only in the position of the excretory part facing part A, and the leak-proof wall 5 was erected in the position of the front part B and the rear part C, at least by the film and the upper part. The inner protruding portion 5b prevents the leak-proof wall 5 from being raised up. ΙΙΦ As described in the above description, it is more effective to make the back of the sanitary napkin j in the position opposite to the excretion part and post A: It is convex, so that the entire sanitary napkin is made into ; Shape of type 2. As a result, the two inner overhangs are decent and the wearer is decently more closely adhered to the thigh of the wearer, and the face-control sealing effect is found thereon. In particular, just like the present embodiment, wing wings 7 are installed on the ground outside the position of the leak-proof wall 5 and the vertical sanitary napkin 1 is installed, due to the folding of the wing wings 7 :! : This can not only further increase the amount of the leak-proof wall 5 so that the leak-proof wall 5 is not easily squeezed to the inside, and the force is 90107486.ptd Page 9 541169

JQL invention description (8) In: the second body reaches the leak-proof wall 5, from; ^ = the absorbent body 4, as a result, the liquid is also in this part, because: along the lateral direction, the leakage is easy to exceed The leak-proof wall 5 has its limbs attached to the leak-proof wall 5 and is trapped even if there is a small amount of liquid: for the wearer, it causes a very large amount? Yin ^ ^ The so-called exchange of physiology due to a small amount of absorption: fruit often often grows, but in this implementation of the accidental use of sanitary napkins, caused by the groove 8; body guidance: fruit In the raw cotton 1, since the leak-proof wall 5 is reached through the valley, it is not unexpected that the liquid is caused. It is not prone to occur as before, as described by Remy, extending back 6. Next, the "back sheet 3" is a thin film sheet having a side impact sheet permeability and a liquid scoop having a liquid absorbency "as described above, and the non-woven fabric 3b and the cloth 3b constitute a 'so' side shield. The skin-facing side of the sheet 6 is absorbent at the skin-facing side. &amp; Liquids with a relatively low surface tension, such as liquids with a liquid density below, due to the surface tension of 30 dyn / which constitutes the leak-proof wall 5, the liquid may penetrate and penetrate the sheet. The side facing sheet 6 leaks to the outside of the skin. However, by using the side facing sheet 6, the leaked liquid is absorbed to prevent the liquid from leaking. That is to say, the so-called liquid is so as to be able to absorb the surface tension of 30 (iyn / cm), which means that it should be at least the skin facing body located on the side flap 6. It can be cited from the conventional Non-woven 3b on the prior art absorption / bit, the person used on the article V. Modification description (9) f silk, cotton, polyethylene, 5ene, polypropylene, polyethylene, thinner: polys purpose "Composite fibers", or "fibers" obtained from the fibers, polymers, and blends of the above-mentioned fibers, or the aforementioned fibers (suction) ': As the type of non-woven fabric, it can be :: cloth, flamboyant non-woven fabric 1 ', :: Jihe (_-b〇nd) form is fully confirmed =: some non-woven composite non-woven fabrics, etc. If you look at it, it is best to use :: Xuan Su II', the perspective of impact and liquid absorption space Cloth. The human (sucti〇n) type heat-bonded non-woven fabric can be hydrophilic or hydrophobic on the surface of J :: woven fabric 3b. If the liquid with a surface tension of at least 30 _ /-is received, there is no term. ^ f restriction ^ [纟 The hydrophilicity of the surface of the non-woven fabric 3b is too high. The non-woven fabric 3b causes the liquid to expand excessively. Therefore, the surface of the non-woven fabric is preferably from weak hydrophilic sweat to hydrophobicity. Especially when the non-woven fabric has a hydrophilic surface, the non-woven fabric 3b has a hydrophilic surface. In the measurement of Krem water absorption (JIS (Japanese Industrial Standard) P8 1 41), it is preferable to use a non-woven fabric having a Krem water absorption of 30 mm or less after 丨 minutes. On the other hand, in the non-woven 31), In a state where the water-absorbent surface having a surface tension of 72 dyn / cm is absorbed, if the liquid can absorb a surface tension of 30 dyn / cm, the nonwoven fabric 3b is most preferably used. The height of the leak-proof wall 5 (see FIG. 2) is 5 to 50 mm, especially 10 to 40 mm; if there is no uncomfortable feeling of the leak-proof wall 5 and the leak-proof property of the leak-proof wall 5 becomes high, From a viewpoint, the height of the leak-proof wall 5 is Η (see

V. Description of the invention (10) As shown in Figure 2), it is best to be 5 ~ 50 off, especially between the end of the special part and the front end of the outer extension 5c ^ jmm / inner extension is 6 ~ 40mm, especially 丨 〇 ~ 3〇_ (refer to Fig. 2), from the viewpoint of the improvement of the connection and the tight sealing effect of the two inner protruding portions 5b and the outer portion on the thigh, the distance The surface caused by σ ^ is 40mm, especially! 〇 ~ 30_. 5. The distance shot is preferably 6 to the front end of the inner protrusion 5b and the absorber 4 2) The distance is 3 to 30 mm, especially the distance D between 5 to 5 mm (refer to the drawing of the weaving and the base wall) The stopping effect of the part of the blood and increase the absorption of the above 上: 0 and stop receiving the sperm. From the viewpoint of the distance D, the absorption capacity is preferably 3 ~ 302. In addition, the inner protruding part 5 is especially 5 ~ 20mm., The shape of the sanitary napkin 1 can be used for :; if it causes the leak-proof wall 5 to be squeezed to the inside, the posture of the user, and the high pressure of the load makes it In the case of a seated person, in the situation caused by the seat ... In terms of the dimension distance £, which is the best point of the leak-proof effect of Al ~ qn, this is the abutment on the skin, so the etch is due to The far-leak-proof wall is direct. In addition, if a sheet with a good skin contact feeling is used by the anti-fetching device, it is best to use a sheet with a surface tension of ^ ^ = from the viewpoint of penetration and penetration. This action satisfies the aforementioned spun-bond-like non-woven: body through-like non-woven, fine bonding, and fine bonding (spun-bond) / Running 541169

Flowing composite non-woven fabric. Measured in the lengthwise direction of the leak-proof wall 5 made of non-woven fabric. 弋 = ':' The non-woven fabric, take precautions), and the red-bulk-so ft ness of the system is taken as 〇. · 〇3 ~ 〇3N, 牯 is η ^, and the secretary of Xi Ding special 疋 05 ~ 〇2N. The other side determined the volume softness of the heart two towels (height direction) and measured 0.5N, especially. .. 7 ~ &quot; Guang 3) J system is preferably 0.05 ~ ^^^^^^ 4, i In addition, the volume softness in the width direction 1 ^ is greater than the volume softness value in the length direction. Πί 2 ί ί and the width of the volume softness value, as: month: tf 'and' ^ wrong by the size of the two volume softness values: the range is described in order to make the configuration in two sides The extension 5b and the external extension 5 (: the elastic structure 9 on the upper side are easy to shrink along the length direction. In addition, the use of the toilet + + ^ ^ ^ Ρ, regardless of the action of the dental user, It is possible to stably and accurately hold the surface sealing effect caused by the two inner protruding portions 5b and the outer protruding portions of the leakproof wall 5 and the verticality of the leakproof wall 5. In order to make the width direction The volume softness value is higher than the volume softness value in the length direction. Therefore, it is preferable to use a suitable method such as applying wave embossing in the width direction of the non-woven fabric. The aforementioned volume is measured by the following method. Softness. That is, using TENSIRON (trade name, manufactured by Toyo Boarj Win Co., Ltd.), a non-woven sample was cut into 12〇111111 \ 1〇111111, and a cylinder with a height of 10 bands was produced. (Staple), fixed to determine the upper and lower ends of the cylinder so that Producing a cylindrical sample of the assay. Along the height direction of the cylindrical sample, it is measured that the compression should be performed at a compression speed of 10 mbar / min.

541169 V. Description of the invention d3) The edge is slightly inward, so as to replace the aforementioned embodiment. In addition, the leakage-preventing groove 8 does not need to have a closed shape. For example, 1 is continuous at the inner position from the side of the absorbent body 4 along the length direction of physiological = surgical raw cotton 1. The leakage preventing groove 8 is formed discontinuously. In addition, each of the inner protruding portion 5b and the outer protruding portion "protrudes from each other, depending on the specific use of the sanitary napkin, etc." It becomes the same protrusion width or a different protrusion width. In addition, in the uranium system, the two inner protrusions 5k and the outer 5c are respectively on the front ends of the outer 5c and 5c respectively. The elastic structural member 9 is arranged, but it is also possible to arrange the elastic structural member near or in the entire widthwise center portion covering the two inner protruding portions 5b and the outer protruding portions 5c, or one side protruding portion, In order to replace the aforementioned embodiment. In addition, the position, the elongation and / or the number of strips of different structural materials ^ can also be generated by the inner protruding portion 5b and the outer protruding portion 5c. The sanitary napkins of the aforementioned embodiment are provided with wings, but they can also be used in conjunction with Different, no wing is provided. No: In order to replace the liquid-absorptive non-woven cloth 3b which is configured as a side-seeding film 6, the film with an opening processing function (open-hole shape) can also be used. Film). As described in detail above, if the present invention, even if it is provided to prevent the liquid-a kind of high applicability, can prevent the leakage of liquid: the mouth can also If it is, it can provide the situation that the leak-proof wall is crushed due to the pressure of the mouth. 4

541169 V. Description of the invention (14) Blister absorbent article [Description of element number A Excretion part facing part B Front part C Rear part 1 Sanitary napkin 2 Top sheet 3 Back sheet 3 &amp; Film sheet 3b Non-woven fabric 4 Absorber 5 Leak-proof wall 5a Base wall portion 5b Inner protrusion 5c Outer protrusion 6 Side flap 7 Wing 8 Leak-proof groove 9 Elastic structure 10 Sleeve section 11 Hot-melt adhesive

90107486.ptd Page 17 541169 Brief description of the drawings Fig. 1 is a plan view of a sanitary napkin as an embodiment of the absorbent article of the present invention, which is observed from the top sheet portion of the sanitary napkin. FIG. 2 is a cross-sectional view taken along the line Π-Π in FIG. 1. FIG. FIG. 3 is a sectional perspective view taken along the line Π-Π in FIG. 1. FIG. FIG. 4 is a schematic view showing a state in which the sanitary napkin shown in FIG. 1 is mounted. 5 (a) to 5 (d) are schematic diagrams showing other forms of the leak-proof wall, respectively.

90107486.ptd Page 18

Claims (1)

541169 VI. Application Patent Scope 1. An absorbent article is a liquid-permeable surface layer, a liquid-impermeable back layer, and an absorption of liquid retention between the surface layer and the back layer Layer, and the leak-proof wall which is formed in the vicinity of each edge of the left and right β sides of the absorbent layer, and has a shape of a leak-proof groove on the surface layer side of the absorbent layer : An article, characterized in that the leak-proof wall is provided with a base wall portion, and an inner protruding portion extending from the upper portion of the base wall portion to the inside and outside of the absorbent article, and The outer protruding portion, and the inner protruding portion and the outer protruding portion, respectively, are arranged along the longitudinal direction of the inner protruding portion and the outer protruding portion. The inner protruding portion is positioned above the absorbent layer, and is further positioned at an outer position than the leakage preventing groove. 2. The absorbent article according to item 1 of the scope of patent application, further comprising a side flap extending from the leak-proof wall to the outside, and the skin of the side flap facing the side is With liquid absorption. 3. The absorbent article according to item 2 of the patent application, which further includes a wing part, and the wing part is the side stop outside the position where the leak-proof wall is erected. The film was extended to the outside. _ 4. If the absorbent article in the first scope of the patent application, the height of the leak-proof wall is 5 ~ 50nm, the distance between the front end of the inner protruding part and the side of the outer protruding part. The distance is 6 ~ 40 nm, the inner side: The distance between the front end of the protruding part and the side of the absorption layer is 3 ~ 30 nm, and the front end of the inner protruding part and the anti- Outside the slot \\ 326 \ 2d- \ 90-06 \ 90107486.ptd Page 19 541169 6. The distance between the scope of patent application is 1 ~ 30nm. 5. The absorbent article according to item 1 of the scope of patent application, wherein the aforementioned leak-proof wall is formed by a non-woven fabric, and the bulk-softness of the non-woven fabric in the direction of the long side of the aforementioned leak-proof wall is 0.03 ~ 0.3N, in the width direction, it is 0.05 ~ 0.5N, and the volume softness value in the width direction is equal to the volume softness value in the long side direction, or the volume softness value is greater than the long side direction. . 6. The absorbent article according to item 1 of the scope of patent application, wherein, during use, the leak-proof wall is erected on the part facing the excretory part of the wearer. 90107486.ptd Page 20