Absorbent article

The first absorbent article TECHNICAL FIELD This invention relates to an absorbent article, especially a thin absorbent article suitable for absorbing a small amount of excreted body fluids, such as a panty liner.

Technical background Panty liners used to treat vaginal discharge, etc., because of the small amount of body fluids that need to be treated, although they do not need large absorption capacity, they must be articles that can perform absorption functions. In addition, because they are used for daily use, it is best to wear them. It feels small. And, for the comfort of the wearer, it is best to be beautiful in design. Therefore, as described in Patent Document 1 and Patent Document 2, the conventional panty liner has a small shape suitable for the narrow width of the crotch part of the panties, and a thin absorbent body is used to make the liner. The overall thickness becomes thinner, and for the surface material layer, a non-woven fabric with soft feeling, good liquid permeability, bulkier than the calibration, and more voids is usually used.

[Patent Document 1] JP 2001-145669 A

[Patent Document 2] Japanese Patent Application Publication No. 2001-231816 Therefore, since the conventional panty liner is small and has a narrow absorption area, even if a small amount of body fluid is processed, the absorption function may be insufficient.

In order to solve this problem, although it is considered to increase the absorption performance by thickening the absorbent body, in this case, the wearing feeling is deteriorated due to the increase in the thickness of the cushion sound body. Here, there are articles that put a thicker absorber in the approximately central part of the liner in the transverse direction to improve the absorption performance without deteriorating the feeling of wearing. However, in the conventional example, since the absorbent body is placed on almost the entire central portion of the pad, the body fluid flowing through the surface material layer may leak out to the lateral end side of the pad especially in the longitudinal center portion.

In addition, the aforementioned Patent Document 1 describes that in order to improve the liquid permeability of the surface material layer, liquid-permeable openings are provided throughout the surface material layer. but if

03107696.3 First, an opening is provided on the entire surface material layer. On the side part that deviates from the absorber, body fluids will pass through the surface material layer, so there is a disadvantage that body fluids easily leak to both sides. In addition, since the openings are only formed in the surface material layer, the liquid passing through the openings will easily flow to the side along the surface of the absorbent body at the interface between the absorbent body and the surface material layer, so there is a possibility of side leakage. .

SUMMARY OF THE INVENTION The present invention was developed in view of the above-mentioned actual conditions of the prior art, and the object is to provide an absorbent article that can effectively prevent body fluids from seeping out to the lateral ends of the absorbent article.

SUMMARY OF THE INVENTION Here, the structure of the present invention is an absorbent article having a liquid-permeable surface material layer, a liquid-impermeable bottom surface material layer, and an absorbent body disposed between the two layers, characterized by the aforementioned The absorber is narrower than the width dimension of the surface material layer and the bottom surface material layer, and the longitudinally extending side edge portion of the absorber is located inside the side edge portion of the surface material layer and the bottom surface material layer, and is formed on the surface material layer The embossing compression part is located in the vicinity of the side edge part of the said absorber, and is continuous in the said longitudinal direction, or is arranged in the said longitudinal direction.

According to this structure, while the body fluid flowing through the surface material layer is absorbed by the absorber, the substantially continuous embossed compression portion in the longitudinal direction of the absorber effectively prevents leakage to the lateral end. Therefore, it is possible to obtain an absorbent article that can effectively prevent body fluids from leaking to the lateral ends of the absorbent article.

In particular, a preferred aspect of the present invention is that the area where the absorber is provided is the central area, and the side edge portion of the absorber and the side edge portions of the surface material layer and the bottom surface material layer are used as the side area. In this case, the embossed compression portion penetrates the side edge portion of the absorbent body from both sides of the central region, and is formed within the range of the side region.

In this structure, since the embossed compression part is located on the upper side of the both sides of the absorber, the embossed compression part can prevent the body fluid from seeping out to both sides in the lateral direction, so that it can be absorbed by the absorber located below. In addition, since the area formed by the embossed compression portion is a range from the center area to the side area of the absorber, the area between the embossed compression portions on both sides will not be narrow, so

03107696.3 Section to ensure a wide area of the absorption area sandwiched by the embossed compression part.

In addition, in the present invention, the embossed compression portion includes a continuous linear compression portion, and it is preferable that the embossed compression portion has the linear compression portion continuously surrounding the non-compressed portion. The flower-shaped pattern is arranged in the aforementioned longitudinal direction.

According to this structure, the embossed compression part is a continuous linear compression part, and the exudation of body fluid can be effectively prevented. In addition, the linear compression portion has a flower-shaped pattern that continuously surrounds the non-compression portion, and the non-compression portion surrounded by the linear compression portion can effectively block the leakage of body fluid to the outside of the flower.

In addition, the aforementioned flower-shaped pattern is a leaf pattern or other design patterns. According to this structure, the embossed compression part can obtain an aesthetic feeling in appearance.

Furthermore, in the present invention, in the central region, a plurality of permeated holes are formed from the surface material layer to the absorber. More preferably, the openings are dispersed in the region between the embossed compression portions on both sides, and all the openings are provided at positions away from the embossed compression portion.

According to this structure, the openings formed in the surface material layer promote the absorption of bodily fluids by the absorber. In particular, the openings are dispersed in the range that does not touch the embossed compression parts on both sides, which can prevent body fluid from leaking to the side through the embossed compression parts on both sides, and at the same time, in the area between the embossed compression parts, the body fluid can pass through The permeable pores are quickly absorbed by the absorber. Therefore, the leakage of body fluid to the side can be prevented more effectively.

Brief Description of the Drawings Fig. 1 (A) is a schematic cross-sectional view of an absorbent article according to an embodiment of the present invention in which a longitudinal center portion is cut laterally, and (B) is a partially enlarged view thereof.

Fig. 2 (A) is a plan view of an absorbent article to which the hot embossing process (leaf-shaped embossing pattern) of the present invention is applied, and (B) is a partial enlarged view thereof.

Fig. 3 is a plan view of an absorbent article to which another hot embossing process (a combination pattern of leaf embossing and curvilinear embossing) is applied.

Fig. 4 is a plan view of an absorbent article to which another hot embossing process (a combination pattern of leaf embossing and small circular embossing) is applied.

Detailed ways

03107696.3 The following describes the embodiment of the present invention by taking the absorbent article of the present invention as an example based on the drawings. Figure 1 (A) is a schematic cross-sectional view of the longitudinal center of the absorbent article cut horizontally, Figure 1 (B) is a partial enlarged view, Figure 2 (A) is a plan view, and Figure 2 (B) is a partial enlarged view Figure.

The absorbent article of the present invention is a thin article suitable for absorbing a relatively small amount of body fluids, that is, vaginal discharge excreted from the female genitalia, a small amount of menstrual blood, etc., and is called a panty liner. The absorbent article basically has a liquid-permeable surface material layer 1, a liquid-impermeable bottom surface material layer 2, and an absorbent body 3 sandwiched between the two layers and narrower than the two layers, and a liquid-permeable surface material layer 1. The liquid-impermeable bottom material layer 2 is formed on the periphery of the absorbent article by an adhesive method 4 such as heat sealing to prevent leakage. In addition, on the back of the liquid-impermeable bottom material layer 2, an adhesive 5 for fixing the absorbent article such as a panty liner to the crotch of the panty is provided.

(Surface material layer) The liquid-permeable surface material layer 1 in this embodiment is made of air-permeable () non-woven fabric, which has a soft feeling, is relatively bulky, has many voids, and has low-density liquid permeability. Of non-woven fabrics. In order to improve the touch and increase the bulkiness, the aforementioned relatively bulky non-woven fabrics with many voids can also be used in multiple layers.

As the surface material layer 1, it is suitable to use the following items, that is, the basis weight (area weight) is 20~60g/m²(Single layer or multi-layer total basis weight) range, density below 0.12g/cm3, measured by SMD (variation of surface unevenness) measured by a surface smoothing tester manufactured by KES (Libu-Shoyu Co., Ltd.) The value is 4.5 μm or less. The aforementioned SMD refers to the average deviation of the surface roughness, which is the same concept as the centerline average roughness. That is to say, in the cross-section of the measurement part, the difference between the average center line of surface roughness and the thickness of the surface is integrated within the range of distance X, and this integrated value is divided by the aforementioned value of X. Using the aforementioned surface smoothing tester, the bent contact of the piano wire with a diameter of 0.5mm is contacted with the surface of the material with a force of 98mN, and the measurement is made within the range of length X=2cm.

As the surface material layer 1, compared with other non-woven fabrics (spunbonded fabrics, spunlace, etc.), air-permeable non-woven fabrics are large in volume and can be provided with more gaps. For use. For example, when two layers of non-woven fabrics are overlapped with air

03107696.3 In the first use, the basis weight of each layer of non-woven fabric (by weight) is 25g/m. The use of polyethylene terephthalate (containing 1.0% titanium dioxide) polyethylene core sheath type thermoplastic fiber ( 2 Denier χ 4mm) formed items. In addition, for air-permeable non-woven fabrics (one worker for a long time), it is best to use a non-woven fabric with a thickness of 0.5mm to 1.0mm after 1 minute of hot air treatment at 115°C. The fibers constituting the nonwoven fabric have titanium dioxide added to the core of the core sheath structure. Compared with the fibers without titanium dioxide, the surface smoothness and drape properties are high, and the hand feel is good.

When only one piece of non-woven fabric is used for the surface material layer, in order to make it bulky, a high basis weight (pay by weight) is required, which tends to have a hard feeling (X). On the contrary, if three or more non-woven fabrics are overlapped and used, It needs to be glued, and bonding methods such as hot melt adhesives will make it hard. Therefore, it is better to use two overlapping air-permeable non-woven fabrics for the surface material layer 1, and it is better to use as few bonding methods as possible to penetrate the two layers of air (workT-X7L). ·-) Non-woven fabric for bonding. However, as the surface layer, as long as it has suitable physical properties, only one sheet or three sheets can be used overlappingly.

In the present invention, the most important feature in order to obtain this effect is to use an article in which the embossed portion 7 is formed on the liquid-permeable surface material layer 1. The embossed compression portion 7 is formed by hot embossing with a specific pattern near the edge portions 6 on both sides of the absorber 3 extending longitudinally, corresponding to the upper surface of the absorber 3 or the outside of the absorber 3. In addition, it is preferable that the embossed compression portion 7 occupies a range that traverses the both side edge portions 6 from the upper surface of both side portions of the absorbent body 3 and deviates from the region of the absorbent body 3.

In the embodiment shown in FIG. 2, the aforementioned embossed compression portions 7 are arranged at intervals in the longitudinal direction, and the embossed compression portions 7 form a substantially continuous pattern. In this context, a pattern that is actually continuous in the longitudinal direction means that the side edges 6, 6 of the absorbent body 3 are taken as the longitudinal direction. When the surface material layer 1 is viewed at a right angle with respect to the side edges 6, 6 The entire range of the edge portions 6, 6 or most of the range, preferably 80% or more, and more preferably 90% or more, on the upper surface of the absorbent body 3 near the edge portions 6, 6 on both sides, Or the area more outside than the side edge portions 6 and 6 preferably has embossed compression portions 7 in the areas transversely crossing the side edge portions 6 and 6.

Such embossing compression part 7 is formed by hot embossing processing, at least one of them

03107696.3 The first part is a continuous curved or linear linear compression part. The embossed compression parts 7 may all be linear compression parts, or may be a mixture of linear compression parts and dot-shaped compression parts. In the example shown in FIG. 2, the periphery of the non-compression part 18 is continuously enclosed by the linear compression part 7a, and the leaf pattern is drawn by the said linear compression part 7a. In addition, the aforementioned non-compressed portion 18 refers to a state that is not compressed at all, or is actually compressed when the linear compression portion 7a is formed, but the degree of compression is much weaker than that of the linear compression portion 7a.

In addition, the pattern drawn by the embossed compression portion 7 as the linear compression portion 7a may be a continuous pattern such as a circle, a star shape, and a petal shape. Or, for example, the modification shown in FIGS. 3 and 4, it may be a combination of the aforementioned various patterns surrounding the non-compressed portion 18 by the linear compression portion 7a and a longitudinally continuous wave pattern, or the aforementioned leaf-like pattern and Various patterns such as a mixture of dot patterns.

The pattern of the embossed compression part 7 is present in the vicinity of the lateral side edges 6 and 6 of the absorbent body 3, and is a longitudinally continuous pattern or a longitudinally arranged discontinuous pattern. When the line of the side edge portions 6, 6 is viewed at a right angle, the embossed compression portion 7 exists in all or most of the areas on the upper surface of the side edge portions 6, 6 and in any area near the outer side. .

Through the hot embossing process, the non-woven fabric is compacted or thinned in the embossed compression part 7, that is, the linear compression part or the dot compression part, and becomes a barrier to the body fluids spreading laterally to the surface material layer 1. The side surface is prevented from leaking and oozing, and the body fluid flows in the direction of the absorber 3 below it, and is absorbed by the absorber 3. In addition, in order to ensure the prevention of side leakage (exudation), even if the surface material layer 1 is formed of multiple non-woven fabrics or a material with a large thickness, in the embossing compression section 7, the hot embossing treatment is best to treat the surface material It is a necessary condition that the entire layer 1 is thinned.

Due to the above-mentioned hot embossing processing, for example, even if the embossing compression portion 7 is a longitudinally discontinuous embossing pattern, most of the body fluid encounters the embossing compression portion near the side edges 6, 6 of the absorbent body 3. 7. The lateral flow is blocked, and it flows in the direction of the absorber. In addition, the amount of excreted bodily fluids that are the object of absorption for panty liners is not large, even if there is a gap between the embossed compression section 7 arranged in the longitudinal direction and the embossed compression section 7 adjacent to it. , Most of the side leakage and seepage will also be prevented.

03107696.3 No. Since the embossed compression portion 7 exists on the side edge of the absorbent body of the surface material layer 1 and in any area near its outer side, it does not hinder the movement of excreted body fluids from the surface material layer 1 to the absorbent body 3. All absorbers 3 can be effectively used for the absorption of body fluids.

In addition, since the embossing compression portion 7 is only a hot embossing process performed on the surface material layer 1, even if the embossing is a thick line, or a whole circle or leaf shape, or is compacted by hot embossing, or hot rolling The area of pattern compaction is large, but it can still be used because it has little effect on the overall rigidity of the absorbent article, but it must be within the range that does not impair the soft feel of the surface material layer 1.

In addition, the embossed compression portion 7 which is a linear compression portion is preferably formed of a thin wire with a line thickness of 1.0 mm or less, more preferably 0.5 mm or less. If so, even if there are many embossed compression portions 7, It also does not impair the soft feel of the surface material layer 1, and does not affect the rigidity of the entire absorbent article. In other words, the ideal embossed compression portion 7 is mainly composed of a linear compression portion formed of thin wires.

In addition, since the hot embossing process of the surface material layer 1 allows the surface material layer 1 to form embossed compressed portions 7 in various patterns that can be seen in appearance, it has an aesthetic appearance in the absorbent article, and as a result Can give users a sense of comfort.

Furthermore, from the viewpoints of the uniformity of the feel of the surface material layer 1, the influence on the rigidity of the absorbent article, and the aesthetics of the appearance, the embossing pattern 7 should be uniform and regular as a whole.

(Absorber) The material of the absorber 3 is not particularly limited as long as it is a water-absorbing material. Examples include materials such as lamination of fluff pulp into a predetermined size, or superabsorbent resin, or hydrophilic polyurethane foam pulp containing superabsorbent resin, cellulose sponge and other foamable absorbent materials. . As the absorbent material used in such absorbent articles, it is preferable that two or more layers of air-laid pulp have a layered structure with a layer with a higher density toward the inside.

The size (length, width) of the absorbent body 3 of the present invention is preferably set to be substantially the same size as that of the female genitals. For example, the longitudinal length is 70 to 120 mm, and the width W1 is 20 to 40 mm. If the size of the absorbent body 3 is outside of the pudendal area, for example, if the absorbent body 3 is placed on the full length of the finished product, the three-dimensional fit to the recessed part of the genitals will be impaired, so the absorbency

03107696.3 There is a gap between the article and the genitals, which may cause the leakage of body fluids. In addition, when the hips are deformed after a lot of activity, you will feel a foreign body sensation.

The size of the surface material layer 1 and the bottom surface material layer 2 are the same, and the absorber 3 is rectangular and smaller in size than the two layers 1 and 2. The length of the absorber 3 is greater than that of the surface material layer 1 and the bottom surface material layer 2. The overall length is short, and the width W1 is narrower than the side edges of the surface material layer 1 and the bottom surface material layer 2, that is, the side edges of the absorbent article 8 at the narrowest point in the lateral direction. The midpoint of the distance between the side edge portion 6 and the side edge portion 6 of the absorbent body 3 is the same as the midpoint of the distance between the side edge portion 8 and the side edge portion 8 of the absorbent article. Therefore, the side edge portions 6, 6 of the absorbent body 3 are located inside the side edge portions 8, 8 of the absorbent article, and the distance between the side edge portion 6 and the side edge portion 8 is 5 mm or more and 15 mm or less.

In this absorbent article, the region having the aforementioned absorbent body 3 is the central region, and the region sandwiched between the side edge portion 6 of the absorbent body 3 and the side edge portion 8 of the absorbent article is the side region.

The absorber 3 is specifically produced in the following method.

Use airlaid pulp with a basis weight of 160g/m, a thickness of 1.6mm, a length of 100mm, and a width of W1 of 30mm, and hot air treatment in a 140C oven for 1 minute to make the thickness 2.0 mm, use one sheet to get the absorber 3. Here, air-laid pulp is also called an air-laid non-woven fabric. Its structure is: pulp: 87% by mass, core-sheath composite synthetic fiber with PP core and PE sheath (fiber degree is 1.7 denier (dtex), fiber length 13mm): 13% by mass. The sleeve part is the aforementioned composite synthetic fiber formed of low-melting PE, and after heat treatment, it has the effect of acting as a binder. Alternatively, an article using an adhesive that bonds pulp and the aforementioned composite synthetic fiber can also be used." (Bottom material layer) The material used for the bottom material layer 2 is not particularly limited as long as it is liquid impermeable. Air-permeable plastics can be used. Film, non-breathable plastic film, or SMS non-woven fabric of spunbond non-woven fabric/melt-flow non-woven fabric/spunbond non-woven fabric laminated and combined.

(Adhesive for combination) The surface material layer 1, the absorber 3, and the bottom surface material layer 2 are bonded to each other and assembled into

03107696.3 In the case of the first absorbent article, or when bonding the surface material layer 1 and the absorber 3 composed of a plurality of components, use an assembly adhesive such as a hot melt adhesive such as polyolefin base. In order to play the role as an assembly adhesive while minimizing the impact on the rigidity of the absorbent article, it is best to select the type of adhesive, the application area, and the application mode, and minimize the amount of application.

(Adhesive for preventing misalignment) Put the absorbent article on the crotch of the panties, and apply the adhesive 5 for preventing misalignment, which prevents misalignment during use, on the outer surface of the bottom material layer 2 on the entire surface or partially in the form of a strip. . As an adhesive for preventing misalignment, it is preferable to use a rubber adhesive containing hydrogenated styrene butadiene rubber, hydrogenated petroleum resin, paraffin oil, and the like. In addition, a release paper treated with a release agent is attached to the adhesive 5 for preventing displacement.

(Overall shape and structure of the absorbent article) The absorbent crystal of the present embodiment is in the shape of a chronograph hourglass with shallow holes, and has a convex curve facing the wearer's abdomen and buttocks toward both ends in the longitudinal direction. In the shape, the side edges 8, 8 extending in the longitudinal direction are shallow concave curved shapes. The vertical length of the absorbent article, for example, the longest part is 140 mm, the horizontal width is 45 mm at the both ends of the vertical center part, and the vertical tip part is 60ππη at the widest point.

The thickness (central part) of the absorbent article of the present invention is preferably 2.0 to 20 mm. If it is less than 2.0mm, the three-dimensional conformability to the concave part of the genitals is reduced, and there is a gap between the skin and the skin, and the effect of preventing the leakage of body fluids is reduced. If it is 20mm or more, although the fit is improved and the leakage of body fluids is reduced, it is easy to have a noticeable feeling of use when the pressure on the body is increased. The best range is 2.5~5.0mm. Within this range, there is a moderate fit feeling, and there is also a feeling of relief against leakage due to the thickness.

In addition, in the central area of the absorbent body 3 where the absorbent article is present, some small penetration holes 9 are opened from the surface material layer 1 to the absorbent body 3, which can promote the flow of body fluids to the absorbent body 3 on the surface material layer 1 penetration.

The aforementioned penetration hole 9 is to insert needle-shaped protrusions from the surface material layer 1 into the absorber 3, by causing a part of the surface material layer 1 and the absorber 3 to be damaged, or by compressing a part of the surface material layer 1 and absorption. Body 3 and formed. As shown in Figure 1(B),

03107696.3 On the cross-sectional shape of the second penetration hole 9, there is a surface material layer 1 on the side wall portion 9a inside the hole, and there is no surface material layer 1 in the bottom 9b. Or there may be no surface material layer 1 on the bottom 9b .

As shown in Fig. 2(A)(B), the penetration holes 9 are regularly dispersed in almost the entire central area. However, the penetration holes 9 are distributed in the area between the embossing compression portion 7 and the embossing compression portion 7 on both sides, and all the penetration holes 9 are away from the embossing compression portion 7, so that none of the permeation holes 9 are in contact with the embossing compression. Section 7 coincides.

In addition, in the examples shown in FIGS. 3 and 4, although the penetration holes 9 are not particularly shown, in any example, in the central area and within the range not overlapping the embossed compression portion 7, the penetration holes 9 are all It is arranged regularly.

If the penetration hole 9 is provided in the central area, the body fluid on the surface of the surface material layer 1 on the central area can flow into the penetration hole 9 and be easily absorbed by the absorber 3. In any of the examples shown in FIGS. 2, 3, and 4, the embossed compression portion 7 is a range in the side area that crosses the side edge portion 6 from the upper portion on both sides of the absorbent body 3, that is, in the range of the width W2 The penetration holes 9 are dispersed in the area between the embossed compression portion 7 and the embossed compression portion 7 in the central area. Therefore, the body fluid flowing to the side or exuding along the surface material layer 1 is blocked by the embossed compression parts 7, 7 on both sides of the central area, and passes through the penetration holes 9 between the embossed compression part 7 and the embossed compression part 7. It is quickly absorbed by the absorber 3 below it.

Therefore, the liquid blocking function of the embossed compression parts 7 and 7 located on both sides of the central area where the absorbent body 3 is provided is complementary to the liquid permeation function of the permeable hole 9 in the central area, and it is possible to prevent body fluids from flowing to the lateral side of the absorbent article. Outflow and leakage, and the absorption of body fluids is improved.

In the embodiment shown in the figure, the aforementioned embossed compression portion 7 is a leaf-like pattern, and the area where the embossed compression portion 7 is provided is from the upper part of both sides of the absorbent body 3 across the side edge portion 6 in the side area width of \V2 Within range. Therefore, in the surface material layer 1, in the range including the lateral width of the side edge portion 6 being W2, it is as if a liquid barrier band is formed over the entire length in the longitudinal direction. The liquid blocking tape can prevent body fluids from flowing out or leaking sideways from the central area. In addition, since the liquid barrier tape has linear compression portions or dot-shaped compression portions, the area occupied by the embossed compression portion 7 in the liquid barrier tape is reduced, and the absorbent article will not be affected as before.

03107696.3 The hard feeling as described in the section above.

The width W2 of the aforementioned liquid blocking band is preferably 3 mm or more and 10 mm or less. If it is less than 3mm, the area ratio occupied by the embossed compression part 7 in the liquid barrier is increased, which is likely to cause a hard feeling. In addition, if it exceeds 10mm, it will shrink and actually perform the liquid absorption function in the central area. Area.

In addition, the lateral width W3 of the area between the embossed compression portion 7 and the embossed compression portion 7 on both sides is preferably 0.6 times or more of the lateral width W1 of the absorber 3. If it is in this range, the liquid-permeable area of the surface material layer 1 can be sufficiently secured.

(Method for manufacturing absorbent articles) The aforementioned absorbent articles are manufactured through processes such as material supply and assembly of absorbent articles that are commonly used in this area.

For example, the following manufacturing process can be taken as an example. After one or more non-woven fabrics are subjected to a high recovery treatment (adhesive in the latter case), the hot embossing process of the present invention is performed at a predetermined position to obtain a sheet of the surface material layer 1. The absorbent body 3 manufactured by another process and cut to a predetermined size is bonded to the surface material layer 1. If a penetration hole 9 starting from the upper surface of the surface material layer 1 is opened in the absorbent body 3 part, it should be carried out after the bonding process. Then, it adheres to the bottom surface material layer 2 to which the adhesive 5 for preventing misalignment and the release paper are attached to the back surface. After that, it passes through pressure sticks, cutters, etc. to become the final product of absorbent articles.

Effects of the Invention By using a liquid-permeable non-woven fabric surface material layer, the surface material layer has the liquid-permeable surface material layer on the absorbent body near the longitudinal side edges of the absorbent body or on the part outside the absorbent body, The embossed compression part formed by hot embossing of a specific pattern, the embossed compression part becomes a barrier to the body fluid spreading laterally to the surface material layer, preventing side leakage (exudation), and the body fluid flowing to the direction of the absorber below it. Absorbed by the absorber. Even if it is a discontinuous embossed pattern, most of the body fluid will encounter the embossed compression part near the side edge of the absorber and flow toward the absorber.

Since the amount of body fluid excreted as an absorption target for panty liners and the like is small, even if there are some gaps where the embossed compression portion does not exist, most of the side leakage and exudation will be prevented.

In addition, because the embossed compression part of the present invention exists on the side of the absorber of the surface material layer

03107696.3 Any area on the first edge and the vicinity of the outer side, therefore does not prevent the excreted body fluid from flowing from the surface material layer to the absorbent body, and almost the entire absorbent body can be effectively used for the absorption of body fluids. In addition, since the embossed compression portion is only a hot embossing process performed on the surface material layer, it has little effect on the rigidity of the entire absorbent article.

In addition, the hot embossing process of the surface material layer of the present invention is embossing various design patterns on the surface material layer that can be seen in appearance, so that the aesthetic appearance of the absorbent article is produced, and the result can be used Comfort.

In addition, in the area where the absorber exists, since almost all the embossed patterns exist in the inner area of the part, many small penetration holes are opened from the surface material layer to the absorber to promote the penetration of body fluids into the absorber, and the surface material layer The side leakage (exudation) prevention functions of the embossed pattern near the edge of the absorbent body complement each other, and the leakage prevention and absorbency of the absorbent article of the present invention are further improved.

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