TWI230056B - Absorbent article with elastically restoring part, and its manufacturing method - Google Patents

Abstract

To increase the joining property with the body by increasing the compression restoring property in the width direction when an absorbent article is shrink-deformed in such a manner that the width dimension may contract by the application of a compression force from the fumer to an absorbent article. In a sanitary napkin 1, a first pressing part 11 and a second pressing part 12 are provided on both sides of a central absorbing part 5, and at a section which is pinched by the first pressing part 11 and the second pressing part 12, a highly elastically restoring parts 6 and 6 are provided. Under a state wherein the sanitary napkin 1 is fitted on the crotch cloth 25 of an underwear, when a compression force F in the lateral direction is received from the thigh, the elastically restoring parts 6 and 6 display a restoring force in the lateral direction, and the central absorbing part 5 can be prevented from becoming a contracted state, and can always be properly joined to the body.

Description

1230056 (1) Description of the invention [Technical field to which the invention belongs] The present invention relates to an absorbent article that is suitable for the absorption of female genital excretion of menstrual blood and the like, and in particular, it has a compression deformation or distortion that can be used during use. An absorbent article restored to its original elastic recovery portion and a method for manufacturing the same. [Prior Art] The general structure of an absorbent article for the absorption of feminine menstrual blood is: an absorbent layer; a thin liquid-permeable surface layer covering the skin-side surface of the absorbent layer; and an underpants wearing side of the absorbent layer The liquid-impervious back sheet on the surface is usually used in a state where the back sheet is bonded to the inner surface of the crotch of a panty through a pressure-sensitive adhesive layer. The above-mentioned grazing article should be able to make up for and absorb the excretory fluid from the excretory part, and it is preferable that the skin-side surface is closely adhered to the excretory part of the body. When an absorbent article is used in the intercondylar area, if a gap occurs between the skin-side surface of the absorbent article and the excretory part, the excretory fluid from the surface thin layer will flow along the surface thin layer, and it is easy to cause excretory fluid. Leaking from the side of the absorbent article or towards the buttocks, soiling underwear or other clothing. Therefore, the conventional absorbent articles described in the following patent documents] to patent document 3 have grooves formed on the side surface of the skin, and a portion sandwiched between the grooves is raised to make it easily adhere to the body. Excretion. The absorbent article described in Patent Document 1 is provided with a swell in the central portion. 5- (2) 1230056 A raised portion having a larger body thickness is formed with a pair of curved surface grooves on the left and right sides of the ridge. The surface groove is a flexible shaft to make the absorbent body easily bendable, and the raised portion can be formed into an arch shape whose cross section is convex toward the user. The absorbent article 'described in Patent Document 2 is provided with a vertically long protruding portion surrounded by a recessed portion on the skin contact surface. The protruding portion is raised so that it can be easily adhered to the body excretion portion. The liquid is blocked by the recessed portion surrounding the protruding portion to prevent it from spreading to the surroundings. In the absorbent article described in Patent Document 3, the absorbent body of the elongated absorbent article is provided with a bent portion formed in a circular arc shape inward from a longitudinal edge portion on the surface of a substantially existing area. A leak-proof wall forming region is formed in a portion surrounded by the bent portion. In use, the above-mentioned formation area of the leak-proof wall is erected toward the intermedullary portion 'to prevent lateral leakage of the excretion fluid. Patent Document 1: Japanese Patent Application Laid-Open No. 0- 3 2 8 2 3 Patent Publication 2 Japanese Patent Fairness 1 1-3 3 0 5 Patent Publication 3: Japanese Patent Application Laid-Open No. 8-3 22 8 7 5 [Summary of the Invention] [Problems to be Solved by the Invention] FIG. 15 is a schematic cross-sectional view showing a state in which the absorbent articles described in Patent Documents 1 to 3 and the like are used on a body. In Fig. 5, the intercondylar portion 50 and the thigh portion 51 of the body and the pant crotch cloth 25 which is worn on the intercondylar portion 50 are shown, and Fig. 60 is a conventional absorbent article. The absorbent article 60 is adhered to the inner surface of the crotch cloth 25-(3) 1230056 and is fixed. In the conventional examples described in each of the above patent documents, a pair of grooves 6 1 and 6 1 are formed on the skin-side surface of each absorbent article 60 and sandwiched between the grooves 61 and 61 in the center. The portion 62 can be closely adhered to the excretory portion of the intercondylar portion 50. As shown in FIG. 15, when the absorbent article is attached to the crotch cloth 2 5 for use, most of the crotch cloth 25 and the absorbent article 60 are affected by the thigh 5 1 and 5 when walking. 1 lateral compressive force F. This compressive force causes the left and right grooves 6 1 and 6 1 to approach each other, so that the central portion 62 that is sandwiched between the grooves 6 1 and 6 1 receives a compressive force from the left and right. However, when the conventional absorbent article 60 is subjected to a compressive force from the lateral direction, its elastic restoring force is mainly dependent on the restoring force of the absorbent layer provided in the central portion 60. However, the absorbent layer provided in the central portion 60 is required to be soft in contact with the intercalar portion 50 and has a large absorption capacity for liquid ', so it is formed as an absorbent layer having a large weight per unit area and a low density. Therefore, 'when it is compressed and deformed as shown in Figure 5], its elastic recovery force in the horizontal direction will be weakened', which keeps it compressed and cannot be restored to the width dimension, plus one t of the absorbent article as a whole will follow. The movement of the ministry distorts it, and most of this distorted state cannot be recovered. In particular, as described above, the absorbent layer having a large weight per unit area and a low density has a reduced elastic restoring force when it absorbs menstrual fluid such as menstrual blood. When the central portion 62 is deformed by the pressure from the intersacral portion 50, it is It cannot be restored to its original size. In addition, when the width dimension is contracted by the compressive forces F and F, its restoring force in the width direction will be extremely low. Therefore, when the gap between the thighs 5 1 and 5 1 is widened, the absorbent article is still shrinking in the width direction. In addition, it is easy to form between -7 and (4) 1230056 and the middle part of the hip. Gap, so it is easy to cause lateral leakage. In addition, the conventional examples described in each of the above patent documents have a structure in which only one groove 61 is provided on each of the left and right sides. Therefore, when these are deformed as shown in FIG. The portions 63, 63 are easier to contact the central portion 62 than the groove 61. As a result, the excretory fluid flowing in the central portion 62 moves to the side end portions 6 3 and 6 3, and the excretory fluid diffuses in the width direction of the absorbent article 60. That is, the grooves 6 1 and 6 1 cannot achieve the effect of diffusing the excretion liquid, so it is easy to cause the lateral leakage of the excretion liquid. In addition, in order to prevent the excretory fluid flowing on the absorbent article from leaking out in the lateral direction, a leak-proof wall is provided on the skin-side surface of the absorbent article so as to extend in the longitudinal direction with an interval therebetween. The leak-proof wall is provided with a liquid-impermeable thin layer having an elastic member capable of exerting elastic contraction force in the longitudinal direction, and the thin layer is erected from the skin side starting point by the elastic contraction force '. However, when the absorbent article is used on the body, it is easy to withstand the above-mentioned compression forces F and F, and when it is in a state in which excretion is absorbed, the shape retaining ability of the absorbent article is reduced, so it is easy. Deformed or distorted. In this case, the erect starting points in front of and behind the leak-proof wall may move toward the longitudinal centerline as the product deforms, or it may easily move forward and backward due to distortion of the absorbent article. Therefore, the standing state of the leak-proof wall may become unstable, which may cause the leak-proof wall to distort, or cause the leak-proof wall to collapse toward the longitudinal centerline, thereby reducing the liquid absorption area on the skin side surface. In addition, as described in the above-mentioned Patent Document 1 or Patent Document 2, when the absorbent article is provided with the above-mentioned leak-proof wall in a vertical suction manner (8) (5) 1230056, the length of the leak-proof wall becomes longer, so the leak-proof wall Will become unstable. When such an elongated absorbent article is used, the leak-proof wall may be moved unexpectedly in response to the movement of the body, and as a result, the leak-proof wall may easily be twisted or collapsed. [Means for solving problems] The present invention is an invention for solving the conventional problems described above, and its object is to provide an elastic restoring force when a compression force from a lateral direction or the like is increased, and the excretion fluid can be easily prevented. Leaked absorbent articles and methods of making them. Another object of the present invention is to provide an absorbent article having a leak-proof wall on the skin-side surface, which can stabilize the standing position of the leak-proof wall. The absorbent article of the present invention comprises: a thin liquid-permeable surface layer on the skin-side surface; a back-layer on the surface of the panty-wearing side; and an absorbent layer between the above-mentioned surface layer and the above-mentioned back layer, which are characterized by: At least positions from the left and right sides extending from the center line extending in the longitudinal direction, at least first pressing portions for longitudinally pressing the surface thin layer and the absorbing layer, and longitudinally extending above the first pressing distance through the interval are formed, respectively. A second pressing portion outside the bonding portion is formed with a central absorption portion having the above-mentioned absorption layer between the first pressing portion on the right and the first pressing portion on the left; each of the first pressing portion and each second pressing Between the portions, when the central absorbing portion is contracted in the lateral direction by an external force, an elastic restoring portion capable of exerting a restoring force on the central absorbing portion from the contraction is formed. In this absorbent article,-9-1230056 is provided between the first pressure-applying part and the second pressure-applying part. (6) There is an elastic restoring part. Therefore, when a compression force from a lateral direction is received, The restoring effect makes it easy to recover the width of the absorbent article, and it is also easy to recover the twist. In particular, when the excretory fluid is absorbed in the central absorbent portion sandwiched between the first and the second crimping portions, the aforementioned first crimping portion can block the excretory fluid and prevent the elastic recovery portion from getting wet easily. Therefore, 'even if the central absorbing part reduces its elastic restoring force due to absorption of excretion fluid', since the elastic restoring parts on both sides can often exert elastic restoring force, the width dimension can be easily recovered, and the twist can be easily recovered. For example, the elastic recovery portion may be configured to have a layer having a higher density than the absorption layer. The width dimension of the elastic recovery portion is preferably half or less of the width dimension of the central absorption portion, and more preferably 1/3 or less. When the width dimension of the elastic restoring portion is made small, the elastic restoring portion sandwiched between the first crimping portion and the second crimping portion can form a slender and high-density layer, making it easy to exhibit elastic recovery. force. In addition, the elasticity and restoring power are formed to be thinner, which can avoid skin discomfort caused by the elastic recovery part. In the present invention, for example, the elastic recovery portion may be configured to compressively sandwich the absorbent layer between the first M bonding portion and the second pressing portion, and between the front surface layer and the back surface layer. In addition, the elastic restoring portion may be configured in the elastic restoring portion, between the first pressing portion and the second pressing portion, the front surface layer and the back surface layer, with the hydrophilic fiber-shaped absorption layer and the Non-woven fabrics made of synthetic fibers are clamped together. According to the situation, in the first pressure bonding sheet, it is preferable that the absorbent layer is sandwiched with the non-woven fabric described in the above -10- (7) 1230056. The nonwoven fabric is, for example, a breathable nonwoven fabric.

As described above, in the elastic recovery portion, not only an absorbent layer mainly composed of hydrophilic fibers such as fibers, but a nonwoven fabric made of synthetic fibers is sandwiched together, so that elastic recovery can be made larger. In particular, since synthetic fibers are contained, it is difficult to reduce the elastic restoring force even if the excretory fluid flows to the elastic restoring section. In addition, since the first pressure-bonding portion contains synthetic fibers, the synthetic fibers can be fused, and thus the pressure-bonding state of the first pressure-bonding portion can be maintained even when an excretion liquid is contained. The present invention may be configured such that the elastic restoring portion is provided with a reinforcing member that exerts an elastic force together with the compressed absorption layer, or may be provided with only the reinforcing member. The reinforcing member is a foamed urethane resin, a hydrophilically treated foamed urethane resin, or a synthetic rubber.

Also, each of the elastic recovery portions has the narrowest opposing interval at the position of the horizontal reference line, and is preferably formed so as to gradually leave the center line as it moves away from the horizontal reference line to both sides in the longitudinal direction. For example, the elastic recovery The convex side of the portion is formed in a curved line shape toward the centerline. In addition, it is preferable that the elastic restoring portion has a portion which is kept at an equal distance from the first pressing portion and the second pressing portion so as to have a constant width dimension. With this configuration, the force from the thighs can be almost uniformly received in each part of the elastic restoring force. In addition, it can eliminate the discomfort caused by the elastic restoring force to the thigh. The absorbent article of the present invention may be configured to have both side edge portions extending in the longitudinal direction of -11-(8) 1230056, and a side end portion may be formed between each of the second pressing portions and the side edge portions, and the side edge portions may be formed on the side. A longitudinal elastic contraction force acts on the end. In this case, when the absorbent article is used in the intercondylar portion, the elastic contraction force causes the side end portion to stand up toward the skin side, and the side end portion has a leak-proof wall function to prevent leakage. At this time, since the first pressing portion, the second pressing portion, and the elastic restoring portion are provided between the central absorption portion and the side end portion, it is difficult for the central absorption portion to contact the side end portion, and it is difficult for the excretion liquid to be absorbed from the center. Since the portion flows to the side end portion, the leakage prevention effect of the side end portion can be improved. In addition, the absorbent article of the present invention is provided on the skin-side surface with a thin layer that extends in the longitudinal direction with a gap therebetween. The thin layer is fixed to the skin-side surface with a front portion and a rear portion. The thin layer is The leak-proof wall is formed from the skin side surface to form a leak-proof wall in the middle portion. At least one of the starting point of the leak-preventing wall in front of the leak-proof wall and the rear starting point is located near the second pressing portion. Alternatively, the erection starting point is located near the end of the second pressing portion. In this way, the starting point of the leak-proof wall is set near the second crimping portion or near the end of the second crimping portion, that is, near the elastic recovery portion. When moving, even when pressure from the thigh is received while the excretion is absorbed. It also suppresses distortion or collapse of the leak-proof wall. In addition, the 'absorptive article of the present invention is provided with a first rear pressure-applying portion which continuously continues each of the first pressure-applying portions and gradually narrows a horizontally facing interval toward the rear edge portion of the absorbent article; and The second rear pressure applicator is formed between the first rear pressure applicator and the side edge part (9) 1230056 described above. The second rear pressure applicator is spaced apart from the first rear pressure applicator. A thin layer extending longitudinally at intervals. The thin layer is fixed to the skin side surface with the front portion and the rear portion. The thin layer is formed from the skin side surface to form a leak-proof wall in the middle portion. The vertical starting point in front of the wall is located near the first pressing portion, and the vertical starting point in the rear of the leakage prevention wall is near the second pressing portion.

Alternatively, the erection starting point of the rear side of the leakage prevention wall is located near the front end portion of the second rear pressing portion. In this situation, the starting point of the rear of the leak-proof wall becomes an elastic restoring effect caused by a rear elastic restoring portion formed between the first rear crimping portion and the second rear crimping portion. Regular movement can prevent twisting or collapse of the leak-proof wall. Here, the distance in the vicinity described above is preferably within 45 mm, and more preferably 25 mm.

The absorbent article of the present invention is particularly suitable for use as a sanitary cotton. In the case of a sanitary napkin, although most of the activities are performed in the intercondylar area, the compression force from the thigh easily causes contraction, deformation or distortion, but in the absorbent article of the present invention Since the middle part has the elastic recovery part, it is easy to recover the deformation or distortion. Next, the manufacturing method of the absorbent article of the present invention includes: a thin liquid-permeable surface layer located on the skin-side surface; a back-surface layer located on the surface on which the undergarment is worn; and a layer located between the surface layer and the back-surface layer Absorptive -13- (10) 1230056 layer; and at a position away from the left and right sides from the center line extending longitudinally, there is at least a first pressing portion and a spacer pressing the surface thin layer and the absorbing layer. The second crimping portions that are spaced apart from the first crimping portion are manufacturing methods of absorbent articles having elastic recovery portions that are respectively extended in the longitudinal direction, and are characterized in that they include a first protrusion disposed at a predetermined interval. A second convex portion which is located outside than each of the first convex portions; a concave portion located between the first convex portion and the second convex portion whose depth from the vertex of the first convex portion is D 1; The depth between the first convex portion and the second convex portion is the first bottom portion of D2: and it is located further outside than the two first convex portions, and the above-mentioned depth is the second bottom portion of D3. In addition, D1 & lt D2 and D1 < D3 pressurized member, using the above pressurized member Pressurizing at least the absorption layer from the skin-side surface layer to form the first pressing portion with the first convex portion, while forming the second pressing portion with the second convex portion, and using the concave portion, The absorbing layer located between the first pressing portion and the second pressing portion is pressurized to compress it to have a higher density than the absorbing layer on the first bottom surface and the second bottom surface facing each other.

In this situation. It is preferable that the above-mentioned bottom surface and the second bottom surface are not subjected to substantial pressing of the absorbent article. However, when the density of the "absorptive layer on the first bottom surface and the second bottom surface facing each other" is lower than that of the absorbent material pressurized by the recessed portion, the first and second bottom surfaces may also face each other. The absorbing layer is subjected to several pressures. [Embodiment] [Embodiment] -14- (11) 1230056 The absorbent article of the present invention is used for the absorption of the intersacral part of the body for the purpose of absorbing menstrual blood 'urine' and other excretory fluid discharged from the body. "Sexual articles" However, in the following embodiment, a sanitary napkin whose main purpose is to absorb menstrual blood discharged from the vaginal opening will be described as an example. Among the two surfaces of the absorbent article, the surface facing the intercondylar part is referred to as the skin-side surface ', and the surface on the opposite side is referred to as a panty-wearing side surface regardless of whether or not underwear is worn.

In the present specification, the pressing portion refers to a state where at least the surface thin layer and the absorbing layer or members other than the absorbing layer and the absorbing layer are compressed to a high density and can maintain this state. In addition, the elastic recovery part in the present invention means:

The central absorption part applies a pressure to shrink its width to a specified size. After the above pressure is removed, the central absorption part wants to return to the original state to generate a rebound force in the left and right directions, respectively. The pair of elastic restoring parts in the state of the central absorbing part apply a force close to the specified size. After the force is removed, the rebound forces of the elastic restoring parts to the left and right sides to be restored to their original state can be set to be proportional. The elastic resilience part with a large rebound force. The longitudinal centerline refers to a longitudinal extension line in which the absorbent article is divided into two. On the other hand, the horizontal reference line does not refer to a position that traverses the absorbent article and is divided into two. As shown in the following embodiment, when the right first pressing part and the left first pressing part are not parallel, it will be located at A horizontally extending line is defined as a horizontally extending line at the positions where the left and right first pressing portions are closest to each other. In addition, when the left and right first crimping portions are parallel to each other, -15- (12) 1230056 cannot specify the closest position, and when it is used on the body, the part that abuts the vaginal opening passes longitudinally. The center line is defined as the horizontal reference line. Fig. 1 is a plan view showing the side surface of the sanitary napkin 1 of the first embodiment of the absorbent article of the present invention with the skin side facing upward, and Fig. 2 (A) is the sanitary napkin of Fig. 1 with Π a-Π a The half cross-sectional view after the line is cut, and the second (B) figure is a half cross-sectional view of the sanitary napkin shown in FIG. 1 taken along the line Π b-Π b. The third figure shows the aforementioned sanitary napkin as a quilt. A cross-sectional view of the state of being attached to the crotch of a panty. FIG. 4 is a schematic diagram showing that the crotch cloth and the sanitary napkin are deformed by a lateral compression force. FIG. 5 is a view showing the deformed state. Schematic floor plan. The planar shape of the sanitary napkin 1 shown in FIG. 1 is an elongated shape, and has a right edge portion 1 a and a left edge portion 1 b extending from the longitudinal center line Oy-Oy in the horizontal direction and extending at an equal interval in the longitudinal direction. In addition, the front edge portion 1 c and the rear edge portion d of the convex curve shape from the horizontal reference line 0x to 10x are spaced back and forth. In addition, for example, when a wing part 8 is formed in a sanitary napkin 1 as shown in FIG. 1, the right edge part 1 a and the left edge part 〖b include a wing part] 8, 18 The left and right side edges of the virtual cutting lines a and a after cutting from the root portion will be described. As shown in each of the cross-sectional views of FIGS. 2 and 3, the sanitary napkin 1 has a liquid-impermeable back sheet 2 exposed on the surface of the undergarment wearing side, and a liquid-permeable surface exposed on the skin side surface. Surface thin layer 3. The absorption layer 4 is interposed between the back surface sheet 2 and the surface sheet 3. The absorbent layer 4 is a second absorbent layer 4a which is provided within the range indicated by the dotted line in the first figure, and overlaps with the second absorbent layer having a smaller area than the first absorbent layer 4a as indicated by the dotted line. Layer 4 b -16- (13) 1230056

In addition, a third absorption layer 4 c having a smaller area than the second absorption layer 4 b is superimposed on the second absorption layer 4 b in the sand-shaped central absorption portion 5. Next, at least the surface thin layer 3 and the above-mentioned absorption layer 4 are pressed and formed with a pressure-bonded portion]. The pressing portion 10 is formed by a press-embossing process using a pressure member described below, and is thin on the above-mentioned second absorption layer 4 a, second absorption layer 4 b, third absorption layer 4 c, and surface. In a state where the layers 3 are overlapped, they are pressed and heated from the surface side of the surface thin layer 3. As a result, a high-density pressure-bonding portion in which the absorption layer and the surface thin layer are almost pressed into a thin film is formed on the pressure-bonding portion 10a; and a high-density pressure-bonding portion 10a Between the high-density pressure-bonding portion 10a and the high-density pressure-bonding portion 10a, the absorbent layer is not a thin film but the medium-density pressure-bonding portion 10b has a higher density than the area other than the pressure-bonding portion 10. The crimping portion 10 is formed by crossing the high-density crimping portion 10a and the medium-density crimping portion 10b, and is formed to sag from the skin-side surface of the sanitary napkin 1 to the back sheet 2 side. Linear compression groove.

The pressing part 10 includes: the first pressing part Π,] 1 located on the right and left sides at equal distances from the longitudinal centerline 〇y-〇y; and located at an equal distance from the first pressing part. The second pressing parts 1 2 and 1 2 are also outside the parts 1 1 and 1 1. The first crimping section Π, 11 and the second crimping section] 2, 1 and 2 are compression grooves along the convex side that are arc-shaped curved lines toward the longitudinal centerline of 0 to 0y. Parts 1], Π, and the second applicator 邰 1 2, 1 2 are configured so that the entire length of the second applicator parts 1 2, 1 2 are equidistant from each other. The above-mentioned crimping portion] 0 has lateral crimping portions 1 3 and 1 3 which can be connected to the front and rear ends of the first crimping portion 11 and I 1. The lateral crimping portions 1 3 and 1 3 are crimping grooves which are arc-shaped curved lines along the concave side toward the longitudinal reference line 0x-0xy. In this embodiment, the area enclosed by the above-mentioned “first pressing portion] 1, Π and lateral pressure -17- (14) 1230056 bonding portion] 3, 13 is the central absorbing portion 5, and the second pressing portion 1 2 and 1 2 are outside the central absorption portion. The crimping portion 10 includes: the first crimping portions 丨 丨, 丨 丨 continuously extending the crimping portions 1 4 and 1 4 extending forward than the lateral crimping portion 13; and The rear extended pressing portions 15 and 15 are continuous with the first pressing portions 11 and 11 but extend rearward than the lateral pressing portions 13. The areas sandwiched between the first pressing portions 11 and 11 and the second pressing portions 1 and 12 are the elastic recovery portions 6 and 6. The elastic recovery portions 6 and 6 are formed in a circular arc shape having a constant width in a range formed by the second pressing portions 1 2 and 12. In addition, the region sandwiched between the second crimping portion 12 and the right edge portion la and the region sandwiched between the second crimping portion 12 and the left edge portion 1 b are the above-mentioned absorbent layer 4 at the side ends, respectively. It is provided in the entire area of the central absorbing portion 5 and each of the elastic brilliant portions 6 and 6, and a range extending from the second pressing portions 1 2 and 12 to the outside to the side end portions 7 and 7.

As shown in Fig. 2, a first absorption layer 4a, a second absorption layer 4b, and a third absorption layer 4c are provided on the central absorption portion 5 so as to overlap and form a central portion absorption layer 4A having a large weight per unit area. In addition, the elastic recovery layer 4B provided in each elastic recovery portion 6 is an absorbent layer having a weight per unit area which is laminated on the first absorption layer 4a and the second absorption layer 4b, and is also in the elastic recovery layer 4B. The absorption layer is compressed to increase the density. Next, each side end portion 7, 7 is provided with a side end portion absorption layer 4C formed of the first absorption layer 4a.

The basis weight of the elastic recovery layer 4 B may be the same as the basis weight of the central absorption layer 4 A, or may be slightly smaller than the basis weight of the central absorption layer 4 A -18- (15) 1230056. However, in order for the elastic restoring portions 6 and 6 to fully exert the elastic restoring force, the unit area weight of the elastic restoring layer 4b is preferably greater than the unit area weight of the side end absorbing layer 4C.

When forming each of the elastic recovery portions 6, the lateral distance between the first pressing portion π and the second pressing portion] 2 is narrowed, and the convex portion of the floating pattern is applied to the surface thin layer 3 and the absorbing layer. When pressing, the surface thin layer 3 is stretched in the lateral direction by applying the pressing force of the convex portion to the lateral surface, and the surface thin layer 3 and the absorption layer are heated under pressure to form a compression groove. Therefore, the absorbing layer between the first pressing portion 1 1 and the second pressing portion 12 is held by the elastic restoring force of the stretched surface sheet 3 and sandwiched between the back surface sheet 2 and the surface. Thin layer 3. By forming the pressing portions Π, 12 in this manner, the density of the elastic recovery layer 4B in the elastic recovery portion 6 can be higher than the density of the central portion absorption layer 4A or the side end portion absorption layer 4C.

In addition, when forming the first pressing portion 11 and the second pressing portion 12, an absorption layer which has been compressed to a high density in advance may be supplied between the two pressing portions 11 and 12 to make the absorption. The layer is compressed again when the pressing portions Π, 2 are formed to form an elastic recovery layer 4B having a high density. As shown in Fig. 2 and Fig. 3, the first pressing portions 11 and 11 and the second pressing portions 1 and 12 are formed by compressing in a concave shape from the surface ridge layer 3 to the back layer. Therefore, the central absorption portion 5 and the elastic recovery portions 6 and 6 are formed in a convex shape toward the skin side. As described below, when the elastic recovery portions 6 and 6 are convex toward the skin side, it is easy to isolate the central absorption portion 5 and the side ends 7 and 7 from each other in the deformed state shown in Fig. 4. -19- (16) 1230056 In the above-mentioned pressing section] 0, at least the first] pressing section 11 spear | 12, in the high-density pressing section 1 〇a and the medium-density pressing section 1 〇b density is formed It is higher than the central part absorbent layer 4A and the side end part J elastic recovery layer 4B. Thereby, the above-mentioned 丨 pressing sound 丨 sticking section] 2 is used as a function for easily bending the sanitary napkin in this section. In addition, the lateral pressing sections 1 3, 1 3, and the front extension 14 and rear The extended applicators 15 and 15 can also be used as flexure shafts: as shown in Figures 1 and 2, the two liquid-impermeable thin layers 20 and 20 on the skin side surface are formed by left and right The liquid-permeable thin layer forms leak-proof walls 2 1 and 21. The structure of the left and right liquid-impermeable thin layers 20 and the leak-proof walls 21 and 21 is symmetrical to each other across the longitudinal center, so only the right-side thin layer 20 and the leak-proof walls 21 will be described below. The description is omitted, and the drawing numbers showing the structure of the leak-proof wall on the left are omitted in the drawings on the left. As shown in Figures 2 (A) and (B), the liquid-tight fold is folded in two, and the rubber extending in the longitudinal direction is sandwiched between the folds and the elastic member 2 2. The overlapping faces are glued to each other. Folded into two overlapping non-zero, it is a bend® extending in the longitudinal direction with the reference 2 1 b having the 2nd surface 2 1 b. The first surface 2 1 a is the skin-side surface of the sanitary napkin 1 shown by the dotted line in FIG. 1. The boundary line between the bonded portion and the non-bonded portion in FIG. 1 is illustrated in the middle by the front boundary line 22b and the rear boundary line 22c. In:] On both sides of the second crimping part, the closing layers 4 C and 5 1 1 and the second crimped flexure shaft crimping part 1 4 and ¢ (会 b. The side part is provided with 20 and 20 respectively And the shape line of 〇 〇ν— 〇 y at the same time as the liquid impermeability. In the thin layer 20, the elastic member 2 2 adheres the thin liquid-pervious thin layer 1 surface 2 1 a to the region shown. The first surface 2 1 a I boundary line 22a, these boundary lines -20- (17) 1230056 2 2 a, 2 2 b, 2 2 c (3 car β | 3 (the range of the unshaded dotted line), the first 1 The surface 2 1 a is not adhered to the skin side surface. In addition, as shown in Table 2 (B), it is between the front end 2 4 a of the front boundary line 2 2 b and the front edge portion 1 c, and the second surface 2 1 c is Superimposed on the first surface 2 ja, the second surface 2] a and the second surface 21c are bonded to each other. In addition, it is the same between the rear end 24b and the rear edge portion d of the rear boundary line 22c, and the second surface 21c is the same. Is superimposed on the first surface 21a, and the first surface 21a and the second surface 2 1 c are adhered to each other. In addition, the first surface 2 1 a is not adhered between the leading edge portion 1 c and the trailing edge portion 1 d. On the second surface 2 1 c. The elastic member 22 is provided at least in the range of the front end 2la and the rear end 24b., In the free state of the sanitary napkin 1 without external force, the elastic contraction force acts on the second surface 2 1 c of the liquid-impermeable sheet 20, and the elastic contraction force acts on the front end 24 a and the rear end. 24b is close to each other. Therefore, between the front end 2 4 a and the rear end 2 4 b 'the table 1 surface 2 1 a and the second surface 2 1 c will stand up from the middle boundary line 2 2 a to form a length L Leak-proof wall 2 1. 1. In the description, the front end 2 4 a of the above-mentioned front boundary line 2 2 b is taken as the leak-proof winter 2 1 and the erected starting point in front is the rear end 2 4b of the rear boundary line 22c. This is the starting point of the leak-proof wall 21 in the rear. In this sanitary napkin 1, the starting point 24 a 'is located in front of the leak-proof wall 21 in the vicinity of 2 a, that is, the above The starting point of the erection is 附近 k near the front end of the elastic recovery part 6. The shortest straight-line distance of the front end of the front erection start 2 4 a and $ 2 _ 1 1 a of the front part 1 is set at 4 5 mm L ') ~ 1 It is best to set it below 40 mm. -21-(18) 1230056 Similarly, the starting point 2 4 b is erected behind the leak-proof wall 21, which is located behind the second pressing part 12. The vicinity of 1 2 b, that is, the erection starting point 2 4 b is located near the rear end of the elastic recovery portion 6. The shortest straight line distance between the erection starting point 2 4 b and the rear end 1 2 b of the second pressing portion] 2, It is set below 45 mm, preferably below 30 mm. The straight line distance between the rear starting point 2 4 b and the rear end 1 2 b is preferably shorter than the straight line distance between the front starting point 2 4 a and the front end 1 2 a. That is, when the sanitary napkin 1 is used, it is relatively easy to move freely since the starting point 2 4 b is erected near the buttocks. Therefore, by forming the rear erection starting point 2 4 b close to the elastic recovery portion 6 in advance, it is possible to easily suppress the movement of the erection starting point 2 4 b. As shown in FIG. 1, the sanitary napkin 1 is formed with butterfly wing portions 18 and 18 which protrude outward from the right edge portion] a and the left edge portion 1b. The butterfly wing portions 18 and 18 are configured such that the back surface thin layer 2 and the liquid-impermeable thin layer 20 are adhered to each other. On the outside of the above back sheet 2, there is provided a pressure-sensitive adhesive to attach the central part of the sanitary napkin} to the crotch of the panties; and to attach the butterfly wings 1 8 and 18 to the crotch of the panties Pressure sensitive adhesive outside the cloth. Fig. 3 shows a state in which the aforementioned sanitary napkin I is attached to the pant crotch cloth 2 5. The central portion of the sanitary napkin 1 is adhered to the inner surface of the crotch cloth 25 through a pressure-sensitive adhesive provided on the outer surface of the back sheet 2. In addition, the butterfly wings] 8 and 18 are bent toward the outside of the crotch cloth 2 5 so that the edges of the two sides of the trousers cloth 2 5 are wrapped, and the butterfly wings U and 18 are adhered by a pressure-sensitive adhesive. Outside the pants cloth 2 5-22-22 (19) 1230056 side.

When the panties were budded, the sanitary napkin 1 would come into contact with the intercondylar part, causing it to deform along the surface of the intercondylar part. However, at this time, the first pressing part 丨 ^, η, and the second pressing part 1 2, 1 2 will function as a flexible shaft, so when viewed from the cross-section of Figure 4, the sanitary napkins on the skin side will easily become deformed. In addition, the longitudinal edge 也会 1 C of the sanitary napkin 1 and the trailing edge portion 1 d are close to each other due to the sag deformation in the longitudinal direction. Therefore, the leak-proof wall 2 1, 2 1 is provided with a contraction force in the longitudinal direction by the elastic member 2 2. It will stand up from the skin-side surface so that the leak-proof walls 21 and 21 are formed to contact the intercondylar portion as shown in FIG. 4. In addition, 'the contraction force from the elastic member 22 in the longitudinal direction will also act on the side end portions 7, 7, so that the side end portions 7, 7 use the second pressing portions 1 2, 12 as the torsion axis toward the third figure. The directions shown by M and M are curved, so as shown in Fig. 4, the side ends 7 and 7 are slightly inclined to stand up to the right edge portion 1 a and the left edge portion] b is toward the body, and the inclined side The end portions 7 and 7 and the above-mentioned leakage preventing walls 2 1 and 21 standing up from the side end portions 7 and 7 can easily prevent the menstrual blood from leaking laterally.

In addition, as shown in FIG. 4, since the side end portions 7 and 7 are erected toward the intercondylar portion 50 from the second pressing portions 1 2 and 12 as starting points, the side end portion absorption layers 4 C and 4 are provided. The side end portions 7 and 7 of C can support the leak-proof walls 2] and 21 from below, so that the leak-proof walls 2 1 and 21 can be closely adhered to the intercondylar portion. At this time, the side end portions 7 and 7 are located below the leak-proof walls 21 and 21 and located in the middle of the thickness direction of the deformed sanitary napkin 1. Since the convex elastic recovery portions 6 and 6 are located on the inner side, Therefore, even if the leak-proof walls 21, 21 are in contact with the side end portions 7, 7, it is difficult to contact the elastic recovery portions 6, 6. Therefore, even if the menstrual blood passing through the intercalary region adheres to the leak-proof wall 2 1, 2], the menstrual blood will not come into contact with the bullet. 23- (20) 1230056 Sexual recovery parts 6, 6 restore elasticity Since the parts 6 and 6 do not easily become wet, it is possible to suppress the reduction of the elastic function. In addition, since the portion of the lateral pressure applicator 1 3 before and after the physiological sanitary napkin 1 is a flexible shaft, the front end part of the front is easier to contact the humus than the lateral applicator 13. Make it easier for the rear end of the rear to touch the buttocks than the lateral pressing parts 1 3. In addition, the front end portion is deformed to be tightly attached to the hump by using the front extension crimping portions 14 and 14 as the flexure axis, and the rear end portion is formed to be closely adhered to the hump by the rear extension crimping portion 15 and 15 as the flexure axis. Hips. In addition, the front-end portion which is further forward than the lateral crimping portion 13 and the rear-end portion which is rearward than the lateral crimping portion 13 have the aforementioned front extension crimps extending in pairs in the front-rear direction, respectively. Since the parts 14 and 14 and the rear extension applicator parts 15 and 15 can increase the laterality of the front end part and the rear end part, the front end part and the rear end part can easily hold the sanitary napkin 1 Flat state. When the sanitary napkin 1 is used, when the interval between the thighs 5 1 and 5 1 is narrowed, the above-mentioned crotch cloth 2 5 and the sanitary napkin 1 act on the thighs 5 1 and 5 1 Horizontal compression force F, F. The compressive forces F and F reduce the width of the sanitary napkin 1 and exert a force on the elastic recovery portion 6 toward the longitudinal centerline 〇y-〇y. Here, since the width dimension of the sanitary napkin 1 is uniform, the above-mentioned compressive forces F and F that reduce the width dimension are strongly exerted particularly at the positions of the horizontal reference lines 0 X-0 X. However, since the elastic restoring portions 6 and 6 sandwiched between the first and second crimping portions 11 and 12 have a curved line shape, the elastic restoring portions 6 and 6 are shown in FIG. 5. It will imitate the curved surface positioning of the thighs 5 1 and 5 1 so that the full length of the elastic recovery parts 6 and 6 is almost equal to the distance of the thighs -24- (21) 1230056 5 1 and 5 1. Therefore, the compressive forces F, F have an equal effect on the entire length of the elastic recovery portions 6, 6, and do not produce a large difference in force.

In this way, since the contraction forces F and F are equally applied to the elastic recovery portions 6 and 6 having rigidity, the compression force is not concentrated on the central absorption portion 5 sandwiched between the elastic recovery portions 6 and 6. In the part of the horizontal reference line 0x-0x, the compressive force acts on the central absorbing portion 5 to spread in the longitudinal direction. Therefore, the central absorption portion 5 is evenly narrowed in the width direction, and there is no phenomenon of extreme local narrowing. In addition, since the elastic recovery portions 6 and 6 with high density and high rigidity will approach each other, the central absorption portion 5 located therebetween will be deformed to be pushed up toward the body, so the central absorption portion 5 is pressed by the intercondylar portion, Make the central absorbent part 5 close to the vagina. In this state, the elastic recovery portions 6 and 6 support the function of the central absorbent portion 5 from below to keep the central absorbent portion 5 and the vaginal opening in close contact.

The elastic restoring layers 4 B and 4 B of the elastic restoring sections 6 and 6 have elastic restoring force in the lateral direction because the absorbent layers are compressed to form a high density. Therefore, when the thigh portions 51 and 51 are spread apart, the elastic restoring effect of the elastic recovery portions 6 and 6 makes it easy for the central absorption portion 5 to recover to open in the width direction. In addition, when a twist occurs in the sanitary napkin 1 in the use state, the elastic restoring effect of the elastic restoring portions 6 and 6 is also easy to cause it to recover. In particular, the elastic restoring parts 6 and 6 have equal width dimensions and imitate bending into the thighs 5 1 and 5 1. Therefore, when the thighs 5 1 and 5 1 are opened, the compressive forces F and F acting on the elastic restoring parts 6 and 6 will The -25- (22) 1230056 positions of the elastic restoring parts 6 and 6 are all relaxed at the same time and equally, so that the width of each part of the central absorbing part 5 can be restored to be equal. In addition, as described above, in order to reduce the dispersion between the elastic recovery portions 6, 6 and the thighs, the compressive forces F, F can be equally exerted on the elastic recovery 6, 6, or when the compression forces F, F In order to reduce the compression energy as uniformly as possible, it is preferable that the first crimping portion 11 and the second crimping portion elastic recovery portions 6 and 6 are formed in a shape along a curved line as in the embodiment shown in the figure. However, if the same effect can be achieved, the first crimping portion 11 and the second crimping portion 12 and the restoring portion 6 ′ 6 are formed at the position of the horizontal reference line χ × 〇χ so as to follow When the horizontal reference lines 〇 X-Ο X are separated from each other back and forth, the shape of the longitudinal center line 0 y-0 y is formed. For example, the two pressing portions 11, the elastic restoring portions 6, 6 may be formed into an arc track, an ellipse track, a ladder track, a V shape, or the like. In addition, the first crimping portion 11 and the second crimping portion 17 may have a zigzag line or a wave line pattern. The pattern may also be: in the horizontal basis 0X-0X is the closest, from the horizontal reference line 0X — Ο X will move away from the longitudinal centerline Oy-Oy pattern when moving forward. The menstrual blood excreted from the vaginal opening is mainly flowing close to the central vaginal absorption portion 5 and absorbed through the thin surface layer 3 and absorbed in the central absorption portion 5 of the central absorption layer because the surrounding area is pressed by the ground 1 1 丨 and the lateral portion 1 3, 1 3 are surrounded, so in the above-mentioned pressing part, it is easy to prevent menstrual blood from scattering, so the menstrual blood is diffused and absorbed in the central absorption portion 5 The liquid absorption capacity of the central absorption layer 4A is obtained Make the most of it. The above-mentioned central portion absorption layer 4A has a large and low weight per unit area, so when menstrual blood is absorbed, its distance from the compression portion of the compressed elastic recovery portion is 6 to 1 J, and the elasticity is close, leaving 12 and The shape rail! Is the middle 4A of the posterior phase of the alignment line, which is pressed against the outer condyle, so that the density force will decrease -26- (23) 1230056. On the other hand, since the elastic restoring layers 4 B and 4B in the elastic restoring sections 6 and 6 are layers compressed to a high density, the elastic restoring force can be maintained even if menstrual blood flows in. Therefore, "in a state of being wet with menstrual blood", the width of the central absorbing portion 5 can be restored each time the thigh portions 51, 5] are opened. In addition, since the elastic recovery portions 6 and 6 hold the central absorption portion 5 against the vaginal opening, even if menstrual blood flows on the central absorption layer 4 A to reduce the compression resilience, it is difficult to reach the vaginal opening. Create a gap. In addition, as shown in FIG. 4, in the compressed state, the sanitary napkin 1 is provided with convex elastic recovery portions 6 and 6 on both sides of the central absorbent portion 5, and the side end portions 7 and 7 are disposed thereon. Outside ', so the surface of the central absorbing portion 5 and the surfaces of the side end portions 7, 7 are difficult to directly contact. Therefore, it is difficult for the menstrual blood absorbed by the central absorption section 5 to be transferred to the side ends 7, 7 ', thereby preventing the menstrual blood from inadvertently spreading. Even when menstrual blood flows laterally along the surface of the central absorption portion 5, the elastic recovery portions 6, 6 can catch menstrual blood and block menstrual blood. Therefore, it is easy to prevent menstrual blood from flowing to the side ends 7, 7. As described above, since the elastic recovery portions 6 and 6 ′ are formed on the left and right sides, especially near the portion where the elastic recovery portions 6 and 6 are provided, the sanitary napkin 1 can recover immediately even if it deforms. This function It can be maintained even when menstrual blood is absorbed. As described above, the forward standing starting point 2 4 a and the rear standing starting point 2 4 b of the leak-proof wall 21 are located near the elastic recovery portions 6 and 6, and the maximum straight line distance 瘪 is 4 5 m or less. Therefore, in the state in which the sanitary napkin 1 is used, the above-mentioned erection starting points 2 4 a, 2 4 b can be easily restored to the original position even if they are deformed toward the longitudinal centerline 0y-Oy when the external force is released. . Therefore, the leak-proof wall 21 will not be inadvertently twisted, and it is upright-27- (24) 1230056 The starting point of the AI starting point 24 a, 2 4 b is formed to be stable, so the leak-proof wall 21 can be prevented from falling down and covering the center. The surface of the absorbing section 5. As a result, the effect of preventing the menstrual blood from leaking through the leak-preventing portions 21 and 21 can be improved. In addition, since the first crimping portion 11 and the second crimping portion 2 and the elastic restoring portion 6 have a convex curved shape toward the longitudinal centerline of 0 y-0 y, the front end 1 of the second crimping portion 1 2 2 a and the rear end 1 2 b are easy to approach the above-mentioned starting points 24a, 2b. Therefore, the elastic recovery portions 6, 6 easily stabilize the positions of the starting points 24a, 2 4b. In addition, in the embodiment shown in FIG. 1, although the front standing starting point 24a is located forward of the front end 12a of the second pressing part 12, the first starting point 24a may be located at the second pressing position. Between the portion 12 and the right edge portion ia, the rear erection starting point 24b a may be located between the second pressing portion 12 and the right edge portion ia. However, the shortest distance between the erection starting point 24a or 24b and the second pressing portion 12 is preferably 4 5 m m or less. 'In this case, the shortest distance is more preferably 2 5 m m or less. The optimum number of each component will be described below. In other embodiments to be described below, the portion having the same structure as the above-mentioned embodiment is preferably within the following numerical range. The density and weight per unit area of the absorbent layer are, for example, the number after removing the hydrophilic paper that covers fibers such as pulp for forming the absorbent layer. The central absorption layer 4A preferably has a large fluid absorption capacity in the central absorption portion 5 that can sufficiently absorb menstrual blood. In addition, it is soft for contact with the body, and the pressure from the body is compressed when the pressure is removed. Elastic restoring force to restore thickness. The central absorption layer 4A preferably has a density in the range of 0.05 to 0.15 g / cm3 -28- (25) 1230056. In addition, the weight per unit area of the central portion absorbing layer 4A is preferably from 500 to 12 g / cm2, and more preferably from 500 to 100 g / cm2. Within this range, sufficient liquid absorption capacity and elastic restoring force against vertical compression can be achieved.

The width dimension W1 of the central absorbing portion 5 on the horizontal reference lines 0 X-0 X is preferably in a range of 15 to 50 mm, and more preferably 20 to 40 mm. The first reason is that the width of the general intercondylar part of a woman is 30 mm. The second reason is that if W 1 is in the above range, for example, the side ends 7 and 7 and the leak-proof wall 2; [, 2 ^ can ensure central absorption even when falling down to the longitudinal centerline 0 y-〇y The exposed surface of the surface of the part 5 allows the surface to catch menstrual blood.

The elastic recovery layer 4B provided in the elastic recovery portion 6 is formed to have a higher density than the density of the central absorption layer 4 A and the density of the side end absorption layer 4C, and the thickness of the elastic recovery portion 6 is formed to a certain degree. Big. That is, in the elastic restoring portion 6, between the first crimping portion 1] and the second crimping portion 2 each having a width dimension W4 of 1 · 5 ~ 3 · 5 mm, the unit weight of the unit is 300 ~ 800 g / cm2 is preferably an absorbent layer of 3 50 ~ 600 g / cm2, so that the density of the absorbent layer is increased to 0.005 to 0.25 g / cm3. Next, the elastic recovery portion 6 is formed in a convex shape having a width dimension% 2 of 3 to 10 mm and a thickness of 2 to 6 mm from the outside of the back sheet 2 to the surface sheet. Since the elastic restoring portions 6 and 6 are formed in this way, between the central absorbing portion 5 and the side ends 7 and 7, a strong elastic force and rich elastic restoring force can be formed, and the height and the elastic restoring force in a wet state can be formed. Does not weaken the elastic part. As described below, in the central absorption section 5 and the elastic recovery sections 6, 6, -29- (26) 1230056 non-woven fabric made of synthetic fibers, etc., will be interposed between the surface sheet 3 and the back sheet 2 together with the hydrophilic fibers. between. In this case, the optimum range of the density refers to the density of the absorbent layer after the nonwoven fabric is removed, and the optimum basis weight refers to the unit area weight including the absorbent layer and the nonwoven fabric. In addition, the elastic recovery portions 6, 6 The vertical length is determined by the vertical length of the second pressing portion. When the longitudinal length of the elastic recovery portions 6 and 6 is too short, the width dimension of the central absorbent portion 5 cannot be recovered. If the length of the elastic recovery portions 6 and 6 is too long, the overall rigidity of the sanitary napkin becomes high and the intermental area becomes uncomfortable. The longitudinal length of the elastic recovery portions 6, 6 (the length measured in parallel with the longitudinal center line 0y-0y) is preferably 40 mm or more and 100 mm or less. However, in the case of a long-time sanitary napkin such as that shown in Fig. 10, which is used at night or when the amount is large, the length of the elastic recovery portions 6, 6 may exceed the aforementioned 100 mm. For example, when the longitudinal length of the sanitary napkin is about 380 mm, the upper limit of the elastic recovery portions 6 and 6 is about 20 mm. If the length exceeds 100 mm or the length is more than 120 mm, it is possible to make the cotton for physiological use easy to impart rigidity to the body. The density of the side end absorbent layer 4 C. is preferably lower than the elastic recovery layer, and more preferably the same as the central absorbent layer. The range is from 0.05 to 0.15 g / cm3. The weight of the first area is preferably smaller than the elastic recovery layer 4B, and is preferably about 300 to 4500 g / cm2, for example. The width and length W3 of the side end absorbing layer 4C is preferably 10 to 35 mm, more preferably 10 to 20 mm. The weight per unit area of the side end absorbent layer 4C is preferably about 300 to 450 g / cm2. The upper limit of the weight per unit area is not limited to the above range, and the upper limit of the weight per unit area when it is a sanitary napkin may be 600 g / cm2. Next, the density of the above-mentioned crimping portion 10 on the first crimping portion Π and the second crimping portion is the highest density portion of the crimping portion 10, that is, the high-density crimping portion 1 0 a The density is preferably sufficiently higher than the respective densities of the central absorption layer 4 A, the elastic recovery layer 4B, and the side end absorption layer 4C. In order for the elastic recovery portions 6 and 6 to independently exert the elastic recovery force, the density of the high-density pressing portion 10a needs to be 0.3 g / cm3 or more, and preferably 0.5 ~: [.5 g / cm 3 range. In addition, the density of the medium-density pressure-bonding portion 10 b at the pressure-bonding portion 10 can be configured as the elastic recovery portions 6 and 6 having an elastic recovery function even if the density is not within the above range. However, if the elastic recovery portions 6 and 6 are to be maintained at a high density and the first pressing portions 11 and 11 and the second pressing portions 1 and 1 2 are easily bent, the medium-density pressing portions The density of 10b is also preferably within the above range. Next, the best example of each constituent material will be described. The thin surface layer 3 is preferably a synthetic patch film formed with a large number of liquid-permeation holes, a synthetic resin sheet formed into a mesh, or an air-permeable nonwoven fabric made of chemical fibers. Alternatively, the above-mentioned synthetic resin film having a liquid-permeation hole on its surface may be used, and a composite material semi-T laminated with a breathable nonwoven fabric underneath. In this situation, the synthetic resin film is a polyethylene resin containing a whitening agent, titanium oxide, a breathable non-woven fabric. The fiber core is made of polyethylene oxide terephthalate (PET), and the fiber The pin is made of a polyethylene (PE) core-sheath composite synthetic fiber. The core-sheath composite synthetic fiber is a material that is thermally fused and bonded to each other through hot air. -31-(28) 1230056 The surface thin layer 3 may be other nonwoven fabrics such as short-spun fiber nonwoven fabrics, nonwoven nonwoven fabrics, and the like. The above-mentioned back sheet 2 is a liquid-impermeable and air-permeable sheet, a polyethylene (PE) film formed with fine ventilation holes, or a polypropylene (pp) sheet. For example, ... It is a thin layer of CaC〇3 and BaS〇4 temple mixed with inorganic tritium filler in the above plastic sheet. The film is appropriately dispersed by extension treatment to form a thin layer with fine 'tuning pores' which has improved permeability. It is a thin breathable layer of about 15 to 5 ο β m. Alternatively, a non-woven fabric may be laminated with a thermoplastic resin. The first absorbing layer 4 a, the second absorbing layer 4 b, and the third absorbing layer 4 c are laminated bodies for pulverizing paper pulp, mercerized pulp, and soft paper pulp such as pulp ^ 4 (: In an overlapping state, use a material that covers the entire body with a hydrophilic paper. In addition, the above pulp may also contain synthetic water-absorbing polymers such as polyacrylic acid salt, polyacrylamide, and anhydrous maleate salt ' Or, natural water-absorbing polymers such as powder and cellulose. Or, it may contain flake-shaped water-absorbing polymers. In particular, when the elastic recovery portions 6 and 6 contain the water-absorbing polymer or a sheet thereof. In a wet state with menstrual blood, the bonding force between the pulps will be increased, and the rigidity of the elastic recovery portions 6 and 6 can be improved. The liquid-impermeable thin layer 2 of the leak-proof wall 21 can be formed. For non-woven nonwovens' melt-blown non-woven fabrics, or laminates such as these, it is best to use a water-repellent material. In addition, the back surface layer 2, the surface layer 3, the absorbent layer 4, and the liquid impermeability The thin layer 20 is suitable for the part other than the above-mentioned pressing part [0]. (29) 1230056 Agents are adhered to each other. Hereinafter, other embodiments of the present invention will be described. In the following, the same components as those in the first embodiment are marked with the same reference numerals and detailed descriptions are omitted. FIG. 6 is A half cross-sectional view of a sanitary napkin 1A according to the second embodiment of the present invention. In this embodiment, the inner portion of the sanitary napkin that passes from the central absorption portion 5 to the first pressing portion 11 and 1.1 to the elastic recovery portion 6 is shown in FIG. A nonwoven fabric 8 made of synthetic fibers is superimposed on the absorbent layers 4 A and 4B. The nonwoven fabric is, for example, a breathable nonwoven fabric. The breathable nonwoven fabric is composed of a polypropylene core (PP) and a polyethylene sheath. (PE) eccentric core-sheath composite synthetic fiber (for example, a fineness of 4.4 dtex and a fiber length of 5 (3 mm), which is heat-treated at 1 35 ° C for 1 minute, and is a breathable non-woven fabric formed by applying on the above fibers A material with a hydrophilic base. Its density is lower than the above-mentioned central portion absorbent layer 4a and surface sheet 3. The use of a breathable nonwoven fabric with a density of 0.005 g / cm3 or more and 0.3 g / cm3. The thickness of the breathable non-woven fabric is 0.5 mm to 2 mm, and two or three of the breathable nonwoven fabrics are folded and used. In the central absorbent portion 5, when the breathable nonwoven fabric is a hydrophilic fiber or a hydrophilic fiber interposed between the paper hair and the like When the central part absorbent layer 4 A and the surface sheet 3 are formed by a mixture of a flexible fiber and a water-absorbent polymer, menstrual blood flowing on the surface sheet 3 in the central absorbent part 5 passes through the surface γ The sacral layer 3 'then passes through the space between the breathable nonwoven fibers with its own weight' and is then absorbed in the central absorbent layer 4A. Therefore, it is possible to accelerate the absorption rate of heavy -33- (30) 1230056 covered menstrual blood, and The thin surface layer 3 is easy to keep dry. In addition, since the breathable nonwoven fabric has high elastic restorability, when the width dimension of the central absorbing portion 5 is compressed as shown in FIGS. 4 and 5. The central absorbing portion 5 itself can exert its elastic restoring force in the width direction. Further, in the elastic recovery portions 6, 6, the breathable nonwoven fabric and the elastic recovery layer 4B that wraps the pulp layer or the pulp and the water-absorbing polymer with a hydrophilic paper are sandwiched in a thin layer on the back side in a compressed state. 2 and the surface thin layer 3. Therefore, the elastic recovery function of the elastic recovery portions 6, 6 can be further improved. In addition, since the first breathable nonwoven fabric is heated and pressurized together in the first pressing portion 11, the synthetic fibers that can constitute the breathable nonwoven fabric are thermally fused, so that the pressing state of the first pressing portion Π can be maintained, even in contact with In the case of menstrual blood, there is no problem in the restoration of the first applicator 11. Therefore, it is possible to maintain a high density inside the elastic recovery portions 6 and 6 at all times. In addition, it is more preferable that the above-mentioned breathable nonwoven fabric can also be interposed between the portions of the second pressing portion 12. The nonwoven fabric made of synthetic fibers is not limited to breathable nonwoven fabrics. For example, nonwoven elastic fabrics and melt-blown fabrics may be provided in the elastic recovery portions 6, 6 and the first and second crimping portions 11 and 12. Non-woven and other non-wovens. Fig. 7 shows a sanitary napkin according to a third embodiment of the present invention! B half-section view. The overall structure of mouth 2 physiological cotton] B is the same as that shown in FIG. However, in the elastic restoring portions 6, 6, a reinforcing member 23 is provided together with the elastic restoring layers 4B and 4B. This reinforcing member 23 has a higher density 疋 than the central absorbing layer 4 A and the side end absorbing layer 4 C and has a high rigidity. -34- (31) 1230056 'For example, a foamed resin material such as a foamed urethane resin, Or the air-permeable non-woven fabric reinforced with heat-fusion or reinforced by a knotting fiber, which is a paper-like fiber, is a rod-shaped or flat-shaped natural rubber or a rigid rubber. Since the member 2 3 is provided, the elastic recovery of the elastic recovery portions 6 and 6 can be further improved. Alternatively, the reinforcing member 23 may be constructed by using a hydrophilically treated foamed urethane resin. It is arrange | positioned in the center suction 5, and the 1st pressing part 11 and the 2nd pressing part 12 and 6 elastic recovery parts. Further, in the present invention, the elastic recovery portions 6, 6 may be provided with no absorbing layer such as a prize, and only the above-mentioned reinforcing member 23 may be provided. Fig. 8 (A) is a plan view of a sanitary system according to a fourth embodiment of the present invention. (1) In this sanitary napkin 1C, a pressure-sensitive portion 10B having the same pattern shape as that shown in Fig. 1 is formed. The pressing part 10B: the first pressing part 11 B, 1 1 B; the second pressing part 1 2 B, 1 2 B; the lateral part I 3 B; the front extension pressing part 1 4 B, 1 4 B; and, rear extension pressure] 5B, 1 5B. There is no continuous compression groove in the pressing portion 1ΌB, but the above-mentioned pattern is intermittently formed with pressing dots at intervals. The pressing part 10B is a surface thin layer 3 which is formed by pressing the convex part with a dot pressing pattern on the part where the dot pattern is pressed, and is heated under pressure. In addition, between the pressing point and the pressing point, No external pressure or force is applied. In this sanitary napkin C, between the first pressing portions Π B, 1 1 B and the second pressing portions 12 2B, I 2B arranged in a pattern of pressure dots, the back pressure is strengthened. The passing part, 6 has paper cotton 1 C. Pressing has a press-applied part. The surface is thinly heated along the floating flower book 40. -35- (32) 1230056 A high level is formed between layer 2 and surface layer 3. The elastic recovery portions 6] B and 6B of density. The elastic restoring portions 6B, 6B 'are weak because of the restraining force of the above-mentioned pressing portions 1 1 B,] 2B formed by the pressing dots. Therefore, only the pressing portion forming step compresses the absorbent layer such as pulp into High density is limited. Therefore, in this embodiment, the elastic recovery layer 4B included in the elastic recovery portions 6B and 6B is preferably made of a material that has been compression-molded in advance, such as paper hair, and it is preferable to use a reinforcing member 23 in the chamber shown in FIG. 7. . As shown in Figs. 8 (A) and (B), the above-mentioned pressing points may be round, and as shown in Fig. 8 (C), the pressing points may also be longitudinally elongated dotted lines. In addition, as shown in (B) and (C), it is preferable that the pressing point of the second pressing section 1 1 B, 1 1 B and the pressing point of the second middle section 丨%, i 2c are They are formed differently from each other: the first crimping portion 11 B, 1 1 B, the intermediate portion without pressure heating between the crimping point and the crimping point, and the second crimping portion 1 2 B, 1 2 B intermediate crimping point. The non-pressurized and heated intermediate part between the pressure and the pressing point is not overlapped in the horizontal direction (χ direction). Because the pressure points are arranged differently from each other, when the menstrual blood flowing to the central absorption portion 5 spreads laterally along the thin surface layer 3 or the absorption layer, the pressure points will lose their way to the menstrual blood flowing laterally. Function, therefore, it has an inhibitory effect on the movement of menstrual blood to the side ends 7 and 7. In addition, it may be configured that one of the first pressing part and the second pressing part is formed as a compression groove like the pressing part 10 in the first figure, and the other square is the eighth (A), (B ), (C) The pressing points shown in the figure. For example, the first crimping portion, the lateral crimping portion, the front extended crimping portion, and the rear extended crimping portion may all be formed as compression grooves, and only the second crimping portion may be formed as described above -36- (33) 1230056 pressing point; the second pressing portion may be formed as a compression groove, and the entire first pressing portion or only the area facing the second pressing portion among the first pressing portions may be formed as the pressing point. In these situations, the lateral crimping portion, the front extended crimping portion, and the rear extended crimping portion may be a compression groove or a crimping point. However, it is preferable that the first pressing portion close to the longitudinal centerline of 0 y to 10 y is formed as a compression groove 'and the second pressing portion is formed as a pressing point. In this way, it is easy to suppress the menstrual blood flowing to the central absorbing section 5 from moving to the elastic recovery sections 6 and 6. As described above, when using a tampon with a pressure point arranged on the pressure point, the non-pressure point will be The front end portion of the curved sanitary napkin is pressed against the lower abdomen side, and the rear end portion is pressed against the hip side. Further, as shown in Figs. 8 (B) and (C), when the pressing points are formed so as to be staggered from each other, the bending rigidity of the pressing portion is not improved but the bending effect can be improved. Although "outside λ" is formed as a dotted line shape as shown in Fig. 8 (C), the length of the linear pressure point is preferably about 10 to 20 mm, and it is adjacent to the linear pressure point in the vertical direction. The vertical length of the intermittent part (non-pressed part) is preferably about 5 ~. In addition, the linear bonding points may be formed so that the high-density bonding portions 10a and the medium-density bonding portions 丨 alternately overlap each other. Further, the linear pressing points may be formed such that any part of the pressing portion shown in Fig. I is cut in the middle. Next, Figs. 9 to U show other embodiments. In the above-mentioned first to fourth embodiments, the pattern shapes of the pressing portions are the same, -37- (34) 1230056, but in the embodiments not shown in FIGS. 9 to 13, the pattern shape of the pressing portions is 7H. It is different from the above-mentioned brothers 1 to 4. However, as for the structure other than the pattern shape of the pressure-bonding part, the embodiments shown in FIGS. 9 to 3 can of course adopt various structures other than the first to fourth embodiments described above. Therefore, in the following, the differences in the shape of the crimping part are mainly explained. The other parts are marked with the same drawing numbers as the above embodiments, and detailed descriptions are omitted. Fig. 9 is a plan view of a sanitary napkin according to a fifth embodiment of the present invention. Fig. 9. The pressure-applying portion 1 0E of the sanitary napkin 1 E shown in Fig. 1 is not provided with the lateral pressure-applying portions 1 3 and 1 3 shown in Fig. 1, but is the first pressure in the shape of an arc curve. The front applicator sections 1 1 E, 11 E are provided with front extended applicator sections in front of and behind] 4 E, 1 4 E, and rear extended applicator sections 15 E, 1 5 E. A portion surrounded by the first pressing portions 1] E, 1 1 E is the central absorbing portion 5, and the second pressing portions 1 2 E,】 2 E are provided outside the central absorbing portion 5. The second crimping portion; 1 2E and 1 2E are read curve patterns formed in a circular arc at an equal distance from the 1 crimping portion 1 1 E and 1 I E. In this embodiment, in the deformed state shown in Fig. 4 or Fig. 5, the elastic restoring portion 6 and 6 can also perform the elastic restoring function. In addition, when menstrual blood flows to the absorption layer, the menstrual blood will spread from the central absorption portion 5 sandwiched between the first crimping portions 1 1 E and Π E, and then spread to the front crimping portion. The part between 1 4 E and the part sandwiched between 1 5 E and 1 5 E at the back of the extended pressing part, so when the amount of menstrual blood is large, the vertical size of physiological sanitary napkins can be effectively used. -38- (35) 1230056

Fig. 10 is a plan view showing a sanitary napkin according to a sixth embodiment of the present invention. This sanitary napkin 1 F is a so-called night-type sanitary napkin in which the lateral width of the right edge portion a and the left edge portion b is enlarged in the lengthwise rear portion. . In this embodiment, the first rear pressing portions extending from the first pressing portions 1 1 F and 1 1 F to the rear are 5 F and 1 5 F, which are formed so as to move toward the rear edge portion] d, which The opposite interval gradually narrows, and the first rear pressing part] [5 F and the first rear pressing part 15 F are connected by a curved connecting pressing part 17F inside the rear edge part 1 d. In addition, a second rear pressing portion 1 8 F, 1 8 F is provided outside the first rear pressing portion 1 5 F, 1 5 F, and the second rear pressing portion 〖8 F,〗 8 f, It is connected to the inside of the trailing edge portion 1 d by a linear connection pressing portion 9F. The second rear pressure applicators 8I 8F and 18F also have a portion in which the horizontally opposite interval is gradually narrowed toward the rear edge portion 1 d. In this embodiment, the area surrounded by the first pressing portion MF, the first pressing portion η ρ, and the leaflet toward M 1 F F is the central absorbing portion 5 F; and the rear pressing portion 15F and The area surrounded by the first rear pressing portion 15F and the connecting pressing portion 17] ρ is the rear central absorbing portion 5G. Next, the central absorbent portion 5F and the rear central absorbent 邰 5G are continuously provided with a central absorbent layer 4A having a high thickness between the inner surface sheet 3 and the back sheet 2. In the above-mentioned central absorption 邰 5 F and rear central absorption 邰 5 G, the density and basis weight of the central absorption layer 4 a are almost equal.

In addition, the first and second rear pressing portions 15F and 15F and the second rear pressing portions 18F -39- (36) 1230056 and 18F are formed as rear elastic recovery portions 6F and 6F, and elastic recovery 邰 6 F, In 6 F, the absorption layer (elastic recovery layer) 5 which is placed between the fascia sheet 3 and the back sheet 2 has a higher density than the central absorption layer 4A in the rear central absorption portion 5G. The looseness of the absorbing layer '吸收 5 in the rear elastic restoring parts 6ρ, 6F is again set to be the same as the elastic restoring parts 6,6, or set to be slightly smaller than the elastic restoring parts 6,6 and to be smaller than the center The partial absorption layer 4 A is also large. As shown in Fig. 10, the first rear pressing part 5 F, 1 5 F, and the first pressing part; the boundary parts 1 1 G, 1! G of 11 F, 1 1 F are formed to leave. The convex shape in the longitudinal centerline 〇y-〇y direction, and the central portion absorbing layer 4 a is formed with wide portions at the boundary portions 1 1 G and 1 1 G. Next, the first rear pressing portions 1 5 F and 1 5 F are formed in a pattern shape in which the horizontally opposite intervals gradually narrow from the boundary portion 1 10, Π G, and toward the trailing edge portion 1 d. The first pressing portions Π F and 1 1 F are also formed in a pattern shape in which the horizontally opposite interval gradually narrows toward the leading edge portion 1 c from the boundary portion 1 1 g '1 1 G. In addition, on the left and right sides of the skin-side surface of the sanitary napkin 1 F, there are opaque thin layers 20 and 20 and a leak-proof wall 2 formed by the liquid-impermeable thin layers 20 and 20. 1, 2]. The structures of the leak-proof walls 21 and 21 are the same as those shown in Fig. 1 except that the dimensions are different. That is, the boundary between the adhesive portion and the non-adhesive portion of the liquid-impermeable thin layer 20 and 20 is provided with a middle boundary line 22a, a front boundary line 22b, and a rear boundary line 22c. The reference number 24a is the leakproof wall 21 The starting point is erected in front of the figure, and the drawing number 2 4 b is the starting point in the rear of the leak-proof wall 21. In this embodiment, the front erection starting point 2 4 a is also located near the front end of the elastic recovery portion 6 and the front end of the second pressing portion 12 2F] 2 a and the erection -40- (37) 1230056 starting point 2 4 a. The shortest straight line distance is 45 mm or less, preferably 40 mm or less, and more preferably 25 mm or less.

Similarly, the rear erection starting point 24b is located near the front end of the elastic recovery portion 6, and the distance between the above erection starting point 24a and the front end 18G of the second rear pressing portion 8F is formed to be 45 mm or less. However, if it is provided with a first rear pressing portion 15F and a second rear pressing portion 18F as shown in the figure, and it has a buttocks protection, it is a vertical type sanitary napkin suitable for use during sleeping 1 F 'Its contact with the buttocks near the buttocks is prone to distortion. Therefore, the shortest straight line distance between the rear erecting starting point 24b of the anti-cavitation wall 21 and the front end i8G of the second rear pressing portion 18F is preferably 20 mm or less.

Because the sanitary napkin 1 F is longitudinal, when it is used inside the panty crotch 25, the horizontal reference line OX-10x will be slightly centered with the front and back direction of the vaginal opening as Consistent position. then. When compressive forces F and F from the thighs are received near the transverse reference line 〇 X — Ο X, the elastic restoring force of the elastic restoring parts 6 and 6 can make it from the fourth figure or the third part. In the change shown in Fig. 5, it is restored to open laterally. In addition, the rear part of the sanitary napkin] F is in contact with the buttocks, and the rear central absorbent part 5 G is in contact with the gluteal groove. Since the elastic recovery portions 6 and 6 are also located on both sides of the rear central absorption portion 5 G, for example, excess pressure from the body or panties caused by a change in the posture (body posture) of the user is about to be applied to the sanitary napkin 1 The rear part of F is also difficult to deform, and it is easy to recover even if deformed. Therefore, it is easy to keep the rear central absorbent part in close contact with the body. In addition, since the leak-proof wall 21 is erected in front of the elastic recovery point -41 ~ (38) 1230056, the rear erected start point 24b is located in the vicinity of the rear elastic recovery portion 6F. The positions of a and 2 4 b are stable. Therefore, the leakage prevention wall 21 is difficult to be twisted and deformed, and it is difficult to fall down to the central absorbing portion 5 f and the rear central absorbing portion 5 G. In addition, when the sanitary pants being worn are provided with elastic members that extend from the crotch cloth and follow the hip grooves, the rear central absorbent portion 5G pushes them into the hip grooves due to the strength of the elastic members. At this time, on both sides of the rear central absorption portion 5 G, there are i-th rear pressing portions 5 ρ, 1 5 F, and second rear pressing portions 1 8 F, 1 8 F, which can be used as flex shafts, respectively. It is functional, so it is easier to closely attach the rear central absorber 5G to the buttocks by receiving the pushing force from the underwear.

Fig. Π is a plan view of a sanitary napkin 1G according to a seventh embodiment of the present invention. Fig. 1] The physiological sanitary napkin 1 G shown in the figure has a hip support at the rear, but its longitudinal dimension is slightly shorter than that of the physiological sanitary napkin I F shown in the figure. Next, the pattern shape of the pressing part 10G is the same as that shown in FIG. 10 except that the second pressing part 12F, I 2 F, and the second rear pressing part 1 8 F, 1 8 F are continuous. . Since this elastic sanitary napkin 1 G is also located on both sides of the central absorbent portion, the elastic recovery portion 6 6 can exert its resilience against external deformation. In addition, the linear distance between the starting point 2 4a in front of the leak-proof wall 21 and the front end 2a of the second pressing part 2a is 45 mm or less, preferably 40 mm or less, and more preferably 25 mm or less. In addition, the shortest straight line distance between the rear starting point 24b and the 2nd-42- (39) 1230056 rear pressing part] 8F is also below 4 mm, and preferably below 25 mm. However, in the embodiment in which the starting point 2 4 b as shown in FIG. 1 is located between the second rear pressing portion 18F and the right edge portion 1 a, the above-mentioned straight line distance can be relatively short, so that it is formed as It is also possible to be below 5 mm. Therefore, each of the erected starting points 24a, 24b, especially the rear erected starting points 24b, will be strengthened by the rear elastic restoring portion 6F, and it is difficult to cause distortion or collapse of the leakage prevention wall 21. Fig. 12 is a plan view of a sanitary napkin 1 η according to an eighth embodiment of the present invention. The overall structure of this sanitary napkin 1 has the same structure as that of the sanitary napkin 1 shown in Fig. 1 except that the butterfly wing portion 18 is removed. Fig. 12 Fig. 12 The pressure-applying part 10 of the sanitary napkin 1 Η includes: a first and second pressure-applying parts 1 1 Η and 1 1 Η; The second crimping portions 1 2 Η, 1 2 Η; the first crimping portions 1 1 Η, 1 1 Η, and the second crimping portions 邰 1 2 Η, 1 2 Η are formed to be kept equidistant. Sandwiched! The portion between the pressing portions 咅 ρ 1 1 Η and 1 1 是 is the central absorption portion 5 η and is sandwiched between the first pressing portion u η: 1 1 Η and the second pressing portion 1 2 Η, 1 2 Η The part is the elastic recovery part 6Η, 6Η. The lateral pressing portions 1 3 Η and 1 3 located at the front and the rear are connected to the second pressing portion 1 2 2 and the second pressing portion 1 2 连结. Therefore, the first pressing portions 1 1 Η,]] Η and the elastic recovery portions 6 Η, 6 Η are located in the second pressing portions 1 2 Η, 1 2 Η, and the lateral pressing portions 1 3 Η, 1 3 Η. Within the enclosed area. In addition, 'l! U square extended crimping part 1 4 Η,] 4 Η and front extended crimping part -43- (40) 1230056 1 5 Η, 1 5 Η, and the second crimping part 1 2 Η, 1 2 Η is formed continuously. In this sanitary napkin] Η, the elastic restoring portions 6Η and 6Η can exert the elastic restoring force in the horizontal direction. In this embodiment, the area of the area enclosed by the second pressing portions 1 2Η, 12 2 and the lateral pressing portions 1 3 Η, 3 3 广 is wider than that of the central absorbing portion 5 所以. The liquid absorption in the area tends to increase. In addition, even if the sexual recovery part 6Η, 6Η between the first crimping part 1 1Η, 1 1Η and the second crimping part 121, 12Η comes into contact with menstrual blood, the menstrual blood spreads only in the surrounding area. In this area, the diffusion area can be limited. 'It is easy to prevent the leakage of menstrual blood from a sanitary napkin. Fig. 13 is a plan view showing a sanitary napkin according to a ninth embodiment of the present invention. This sanitary napkin 1 J is a pattern of the pressure-applying portion 10 J for the sanitary napkin I E shown in FIG. 9. In this Binsch form, the front extended pressing parts are continuously extended forward and backward] 4 J 1 4 J and the rear extended pressing parts 1 5 J and 1 5 J are located in front of and behind the second pressing parts 1 2 J, 1 2]. Next, the "first crimping portion 1 1 J, the first crimping portion 1 U, is located inside the continuous area, and the portion sandwiched between the first crimping portion 1 U and the first crimping portion 1 1 J is formed as Central absorbing part. In this embodiment, the effects of the elastic recovery 邰 6Η, 6Η can exert the elastic recovery force in the lateral direction. In addition, the side of the "central absorption part 5 J" is sandwiched by the second long pressing part 12 · τ, 12 J, the square extended pressing part 14J, 14J, and the rear extended pressing part 15], 15j.着 'so that the menstrual blood adhered to the elastic recovery part 6 H, 6 H can be used to blast 1 J Health 5 and 5 J Health 5 to the Physiological Department of Health. -44-(41) 1230056 Cotton U Diffusion in the vertical direction can improve the effect of preventing horizontal leakage. Next, the manufacturing method of the said sanitary napkin is demonstrated. The following is a description of a method for manufacturing the sanitary napkin shown in Figs. 1 and 2], but the sanitary napkin according to each of the embodiments described above only needs to be changed into the pattern of the pressing portion, or the introduction The materials between the first pressing portion 1] and the second pressing portion 12 can be manufactured in the same manner.

In the method for manufacturing the aforementioned sanitary napkin 1, first, the absorbent layer 4 and the thin surface layer 3 are overlapped, and the two members are bonded as necessary. Secondly. The pressing member having a floating pattern is used to press from the thin surface layer 3 to form the pressing portion 10 described above. Then, the surface thin layers 3 are overlapped and joined. However, it is also possible to press the embossed pattern of the absorbent layer 4 only and then sandwich it between the back surface layer 2 and the surface layer. In addition, the pressing of the floating flower pressing pattern may be performed from the outside of the absorbent layer 4 (underwear wearing side surface), or the pressing of the floating flower pressing pattern may be performed from both sides thereof. However, in the following description, a case where the embossed layer 4 and the surface sheet 3 are overlapped and a floating pattern is pressed from the surface sheet 3 will be described. Fig. 14 (A) is a partial plan view showing the pressurizing member 100 when viewed from the pressurizing surface side, and Fig. 14 (B) is a cross-section taken along line B-B of Fig. 14 (A) Illustration. On the pressing member 100, the pressing part 10 shown in FIG. 1 is formed with a embossed pressing convex part 1 1 0 in which the pattern can be transferred. However, in FIG. 14, it is only shown in the horizontal direction of FIG. 1. The embossed pressing protrusions 1 1 0 for forming the first pressing portions 11 and the second pressing portions 12 near the reference line 0X to 10X are partially. On the left side of the floating flower pressing protrusion 1 1 0 shown in FIG. M, a first bottom portion facing the central absorbing portion 5 of the raw-45- (42) 1230056 sanitary napkin] is formed. A second bottom portion 1] 7 is formed facing the side end portion 7. The depth from the apex of the floating flower pressing 1 10 to the first bottom 1 1 5 is represented by 〇2. The depth from the above apex to the second bottom Π 7 is represented by D 3 and the depths D 2 and D are described. 3 may be the same, or the depth of the first bottom portion 1 1 5 facing the center-receiving portion 5 having a thickness may be set to be deeper. In Fig. 14, the first 1 1 1 1 for forming the first pressing portion 11 and the second convex 1 1 2 for forming the second pressing portion 12 are not shown. As shown in (4) (B), a recessed portion for compressing the absorbent layer between the pasting portion 11 and the second pressing portion 12 is formed between the first convex portion 11 1 and the second convex portion 1 12. 1 i 6. In the embodiment, the elastic recovery portion 6 is formed by the concave portion 1 1 6. The depth D1 from the bottom to the bottom of the concave portion 1 1 6 is shallower than the depths D2 and D 3. The first convex portion is The front end of 1 1 1 is provided with a pressing portion I 1 1 a, and inclined surfaces 1 1 1 b, 1 1 1 b are formed on both sides of the apex. The ground is at the front end of the second convex portion 1 1 2. It also has a pressing part 1 1 2 a, which also has an inclined surface 1 2 b, 1] 2 b. In addition, the above-mentioned inclined surfaces] 1 1 b and 1 1 may be continuous to the bottom surface of the concave portion 1 1 6 Next, the pressing portion 1 1 a and the pressing portion 1 1 a alternately have the pressing surface for forming the high-density pressing portion 1 0 a] 10a and the intermediate pressing portion. The shallow grooves 1 1 Ob for forming 1 〇b. The pattern shapes of the pressurized surfaces 1 1 〇a and 1 1 0 b are the same as those of the high-density pressure bonding portion 10 a and medium-density pressure 10 b. In addition, in the figure], the right side of the second facing portion 12 is not on the right side. The convex part is shown. The upper central suction convex part) Figure I 1 is enough to press the apex to its same shape 2b, which forms the -46-(43) 1230056 of the shallow groove adhesion part. Pressing part] 3, 1 3 and front extension pressing object] 4, M and rear extension pressing part 15, 15. The convex part for forming the convex part 15, 15 does not mean the first convex part 1 shown in FIG. 14 The part that is juxtaposed with the second convex part] 1 2 'refers to a shape in which only the first convex part 1 1] is erected from the first bottom part 1 1 5 and the second bottom part] 1 7. Laminate the absorbent layer 4 and the thin surface layer 3, and after bonding the two members as required, the outside of the absorbent layer 4 abuts other flat members on the flat surface, and abuts from the surface of the thin surface layer 3 as shown in Fig. 1 The illustrated pressure member 100 presses the absorption layer 4 and the surface sheet 3 with two pressure members. If necessary, the pressurizing member is heated and then pressurized. As a result, the pressure-bonding portion 10 shown in FIG. 1 is transferred to the laminated body, and compression grooves are formed along the pattern of the pressure-bonding portion 10. At this time, since the absorbing layer 4 is pressurized by the convex portion of the depth D 1, the absorbing layer is packed in the first pressing portion Π and the second pressing object 1 in a state of being compressed to a high density. 2 and the back sheet 2 and the surface sheet. That is, the absorbing layer is sandwiched between the first pressing portion 11 and the second pressing portion 12 while the recessed portion 1 16 is pressurized to compress it to a high density. The surface thin layer 3 does not relax between the 11 and the second pressing part] 2. The surface thin layer 3 encloses a high-density absorption layer. On the other hand, the bottom part 1 1 5 does not actually pressurize the central absorbing part 5 ', and even if it is pressed, the pressure is only a little, and the relationship between the second bottom part 1 1 7 and the side end part 7 is also related to this. the same. In this way, between the first pressing portion 11 and the second pressing portion 12, an absorbent layer that has been compressed and sealed in a high density can be formed. Its density is similar to that of the central absorbent layer 5 and the side ends. The part 7 is high enough. In the above embodiment, the absorbing layer can be formed as an elastically recoverable 47-1230056 (44) layer 4B. In addition, since an absorbent layer compressed to a high density is formed between the pressure-bonding portion 11 and the pressure-bonding portion 12, its function is not to serve as the elastic recovery layer 4B but to be used for physiological purposes as shown in FIG. 4. In the deformed state of the sanitary napkin 1, it can be used as a support portion that supports the central absorbent portion 5 from below and closely adheres to the vaginal opening.

The pressurizing member 100 and the pressurizing member having a flat surface may be configured as a roller surface structure facing each other, or may be formed as a flat pressurizing member. Since the recessed portion 1 1 6 is provided as described above, an absorption layer is formed between the first crimping portion 1 1 B and the second crimping portion 1 2B sandwiched between the dots of the crimping portion shown in FIG. 8. It is also feasible for high density. [Inventive effect]

As described above, the absorbent article having the elastic restoring part of the present invention is used in a state where the medial part is subjected to a lateral compressive force. When the compressive force is relaxed, the ability of the central absorbing part to recover in the width direction is increased, and the twist Deformation conditions such as these also become easier to recover. Therefore, it can be easily adhered to the excretory part of the body frequently, and it is easy to prevent the lateral leakage of excretory fluid. [Brief Description of the Drawings] Fig. 1 is a plan view of a sanitary napkin showing an i-th embodiment of the absorbent article of the present invention. Fig. 2 (A) is a half cross-sectional view of the sanitary napkin shown in Fig. 17 at the line π a-Π a. Fig. 2 (B) is a half cross-sectional view of the sanitary napkin shown in Fig. 1 taken along the line nb-nb. -48-(45) 1230056 Fig. 3 is a sectional view showing a state when the sanitary napkin shown in Fig. 1 is applied to the crotch of a panty. Fig. 4 is a schematic cross-sectional view showing a deformed state of a sanitary napkin and a panty crotch when a lateral compressive force acts. Fig. 5 is a plan view showing a deformed state of a sanitary napkin and a panty crotch when a lateral compressive force acts. Fig. 6 is a plan view showing a sanitary napkin according to a second embodiment of the present invention. Fig. 7 is a half sectional view showing a sanitary napkin according to a third embodiment of the present invention. Fig. 8 (A) is a plan view showing a sanitary napkin according to a fourth embodiment of the present invention. Figure 8 (B) (C) is an enlarged plan view showing the shape of the pressing points. Fig. 9 is a plan view showing a sanitary napkin according to a fifth embodiment of the present invention. Fig. 10 is a plan view showing a sanitary napkin according to a sixth embodiment of the present invention. Fig. 11 is a plan view showing a sanitary napkin according to a seventh embodiment of the present invention. Fig. 12 is a plan view showing a sanitary napkin according to an eighth embodiment of the present invention. Fig. 13 is a plan view showing a sanitary napkin according to a ninth embodiment of the present invention. Fig. 14 is a view showing a pressing member for forming a pressing portion, (A) is a plan view of the section -49- (46) 1230056, and (B) is a cross-sectional view taken along a line B-B. Fig. 15 is a cross-sectional view showing a problem when conventional sanitary napkins are used in the intercalary region. [Illustration of drawing number]

1, 1 A '1 B, 1 C, 1 E,] F, 1 G, U: sanitary napkin 1 a: right edge 1 b: left edge 1 c: front edge 1 d: rear edge 2: Back surface layer 3: Surface layer 4a: First absorption layer 4b: Second absorption layer 4c: Third absorption layer.

4 A: Central absorbent layer 4B: Elastic recovery layer 4C: Side end absorbent layers 5, 5 A '5 F, 5 Η, 5 J: Central absorbent portion 5 G: Rear central absorbent portion 6, 6 A, 6 C , 6 D, 6 Η, 6 J: Elastic restoring part 6F: Rear elastic restoring part 7: Side ends 1 1, 1 1 Β,] 1 Ε, 1 1 F, 1 1 Η, 1 1 J: 1st pressure Pasting section -50- (47) 1230056 2nd pressing section 12, 12B, 12E, 2F, 12H, 12 J: 1 3, 1 3 A, 1 3 F, 1 3 H: lateral pressing section 1 5 F : 1st rear crimping part] 8 F: 2nd rear crimping part 1 8 G: 2nd rear crimping part front 2 2: leak-proof wall 24a, 24b: leak-proof wall erection starting point 25, 25A: pant crotch cloth

-51-

Claims (1)

123〇〇56 (1) Lift ^, patent application scope An absorbent article having an elastic recovery portion, comprising: a thin liquid-permeable surface layer located on the skin-side surface; a back layer located on the surface of the undergarment wearing side; and a thin layer located on the surface layer and the back surface The absorption layer between layers is characterized in that at least one first pressing portion extending in a longitudinal direction and pressed against the surface thin layer and the absorption layer is formed on a position extending away from the left and right sides from a centerline extending in the longitudinal direction. And a second crimping portion extending longitudinally outside the first crimping portion with an interval therebetween, a central absorbent portion having the absorbent layer is formed between the right first crimping portion and the left first crimping portion; Between the first crimping portion and each of the second crimping portions, an elastic restoring portion capable of restoring the central absorbing portion from the contraction when the central absorbing portion is laterally contracted by an external force is formed. 2. The absorbent article having an elastic recovery portion according to item 丨 of the patent application scope, wherein the elastic recovery portion has a layer having a higher density than the absorption layer. 3. The absorbent article having an elastic recovery part according to item 2 of the scope of patent application, wherein in the elastic recovery part, the absorption layer is compressed and sandwiched between the first pressing part and the second pressing part and the surface is thin. Layer and back thin layer. 4 · The absorbent article having an elastic restoring portion as described in item 2 of the scope of the patent application, wherein the elastic restoring portion may be configured in the elastic restoring portion with a hydrophilic fiber-shaped absorbent layer and The non-woven fabric made of synthetic fibers is compressed and sandwiched between the first and second pressing portions, and the surface and back layers. 5. The -52- (2) 1230056 absorbent article having an elastic restoring portion as described in item 4 of the scope of the patent application (wherein) the above-mentioned first pressure-bonding portion is such that the absorption layer and the non-woven fabric are pressed together . 6. Absorption with elastic recovery part as described in item 4 or item 5 of the scope of the patent application 丨 biological np 'wherein the above-mentioned nonwoven fabric is a breathable nonwoven fabric. 7. The absorbent article having an elastic restoring unit according to item 1 of the scope of the patent application, wherein the elastic restoring unit is provided with a reinforcing member that exerts elasticity together with the compressed absorbent layer, or is provided with only the aforementioned reinforcement member. 8. The absorbent article having an elastic restoring unit as described in item 1 or item 2 or item 3 or item 4 or item 5 or item 7 of the scope of the application for a patent, wherein each of the above elastic restoring portions is in At the position of the horizontal reference line, the opposite interval is the narrowest, and it is formed so that it will gradually leave the center line as it moves away from the horizontal reference line to both sides in the longitudinal direction. 9. An absorbent article having an elastic restoring unit as described in item 1 or item 2 or item 3 or item 4 or item 5 or item 7 of the scope of patent application, wherein the elastic restoring part The side is formed in a curved line shape toward the centerline. ] 〇. As for the absorbent article with elastic restoring unit described in item 1 or item 2 or item 3 or item 4 or item 5 or item 7 of the scope of patent application, where the above-mentioned elastic restoring part is It has a part which is kept at an equal distance from the above-mentioned pressing part and the second pressing part so that the width dimension is constant. 1 1 · If the absorbent article with elastic recovery part described in item 1 or item 2 or item 3 or item 4 or item 5 or item 7 of the scope of patent application, "absorbent item" is Extending the edge portions on both sides in the longitudinal direction, a side end portion is formed between each of the -53- (3) 1230056 2 crimping portion and the side edge portion, and a longitudinal elastic contraction force acts on the side end portion. 1 2. An absorbent article having an elastic recovery part as described in item 1 or item 2 or item 3 or item 4 or item 5 or item 7 of the patent application scope, wherein 'on the skin side surface, the There is a thin layer extending in the horizontal direction at intervals through the space. The thin layer is fixed on the skin side surface with the front part and the rear part. The thin layer is formed from the skin side surface to form a leak-proof wall in the middle. At least one of the starting point in front of the leak-proof wall and the starting point in the rear of the leak-proof wall is located near the second pressing portion. 1 3. The absorbent article having an elastic recovery portion as described in item 12 of the scope of patent application, wherein the starting point of the erection is located near the end of the second pressing portion. 1 4 · If there is an absorbent article with an elastic recovery part as described in item 1 or item 2 or item 3 or item 4 or item 5 or item 7 of the patent application scope, in which: The first pressing portion is a first rear pressing portion that gradually narrows in a lateral direction toward the rear edge portion of the absorbent article; and the first pressing portion and the side edge portion are formed between the first pressing portion and the side edge portion. The first rear pressing part is a second rear pressing part with an interval therebetween. On the skin side surface, a thin layer extending in the horizontal direction with an interval therebetween is provided. The thin layer is a front part and a rear part. The thin layer is fixed on the skin-side surface, and the thin layer is formed from the skin-side surface to form a leak-proof wall in the middle portion. The starting point of the rear wall of the leak wall is located near the second rear pressing portion. 1 5. The absorbent article having an elastic recovery portion -54- (4) 1230056 as described in item 4 of the scope of the patent application, wherein the rear side of the leak-proof wall is erected on the end of the second rear pressing portion. Near the Ministry. 16. The bullet-absorbent article as described in item 12 of the scope of patent application, in which the vicinity is 45 mm or less. [7] As in the scope of patent application, item 1 or item 2 or item 3 In item 5 or item 7, the absorbent having an elastic recovery part is used as a sanitary napkin. 18. An absorbent article having an elastic recovery part is made of: a thin liquid-permeable surface layer on the skin side surface; a back surface layer on the side surface; and, between the surface layer and the thin layer And at least a first pressing part which is pressed against the surface thin layer and layer at a position on the right side of the center line extending from the longitudinal direction, and is outside the first pressing part with an interval therebetween. f | The sticking part is a method for manufacturing a product with elastic recovery parts formed by extending in the longitudinal direction, and is characterized by having: a convex part at a specified interval; and a second convex part which is located outside the first convex part. Between the first convex portion and the second convex portion is a concave portion D1 from the vertex of the first convex portion; located between the first convex portion and the second convex portion is a first bottom portion having a degree of D2; and, The depth is 2nd bottom of D3 than the two first protrusions. In addition, a pressure member using D1 < D3 is used. With the pressure member, the absorbent layer is less applied from the skin 'side. Pressing, forming the sleeve with the first convex portion, and simultaneously forming the second pressing portion with the second convex portion. The starting point is the fourth item or item in the distance 2 in the orthopedic recovery part. The manufacturing method is to wear the underwear on the back and leave the left part of the absorption [J's second part of the pressure-absorbing absorbent material; Press the absorbent layer located between the first and second crimping portions at D1 < D2 and the surface layer to the above-mentioned recessed portion -55- (5) 1230056 of the I1 crimping portion on the outer side The density is higher than that of the absorption layer on the first bottom surface and the second bottom surface facing each other. 19. The method for manufacturing an absorbent article having an elastic recovery part as described in item 18 of the scope of patent application, wherein the first bottom surface and the second bottom surface are not substantially pressed by the absorbent article. . -56-