KR100774562B1 - Disposable Absorbents Improved Anti-aggregation Property - Google Patents

Abstract

The present invention relates to a disposable absorbent product, and relates to a disposable absorbent product by which the anti-aggregation property is dramatically improved by partially partitioning the absorbent which serves to absorb and store secretions. The present invention provides a liquid permeable top sheet 10 in direct contact with the wearer's skin, a liquid impermeable back sheet 30 that prevents secretions from leaking to the outside, and the top sheet 10 and the back sheet 30. Disposable absorbent product comprising an absorbent body 20 which absorbs and stores secretions between the absorbents, and provides a disposable absorbent product having an absorbent separating junction 25 formed on the absorbent body 20. The absorber separation junction 25 is to divide and partition the absorbent body 20, and includes an entire length or part formed along the longitudinal direction (vertical direction), the transverse direction and / or the diagonal direction of the absorbent body 20, It includes those formed by hot melt bonding method or heat fusion method. Accordingly, the present invention has the effect of significantly preventing agglomeration by limiting the movement of the absorber material by the absorber separation junction 25.

Disposable Absorbent Products, Diapers, Absorbents, Bundling, Hot Melt, Heat Fusion

Description

Disposable Absorbents Improved Anti-aggregation Property}

1 is a plan configuration diagram of a disposable diaper as showing an embodiment of the present invention.

FIG. 2 is a cross-sectional view of the I-I line of FIG. 1. FIG.

Figure 3 shows an absorbent body of the disposable diaper according to the present invention, a plan view showing an embodiment of the absorbent body.

Figure 4 shows an absorbent body of the disposable diaper according to the present invention, a plan view showing another embodiment of the absorbent body.

Figure 5 shows an absorbent body of the disposable diaper according to the present invention, a plan view showing another embodiment of the absorbent body.

Explanation of symbols on the main parts of the drawings

1: Anterior waist 2: Inseam

3: rear waist 10: top seat

15 Absorption Diffusion Sheet 20 Absorber

21: Super Absorbent Resin 22: Cotton Pearl Pulp

23: absorbent bonding sheet 25: absorber separation junction                 

30: back sheet 32: plastic film

34: nonwoven fabric 40: inner solidified band

41,46: cured band flap 42: cured band elastic body

43: coagulation band flap adhesion portion 44: coagulation band end portion

45: external coagulation band 47: coagulation band end adhesive portion

48: inner flap 49: outer flap

50: waist band 61: adhesive

62: fixing portion 65: target portion

The present invention relates to a disposable absorbent product having improved agglomeration preventing properties, and more particularly, by partially partitioning an absorber that absorbs and stores human secretions, while exhibiting an absorbing force equivalent to or higher than that of a conventional absorbent product, This breakthrough improved disposable absorbent product.

Humans excrete secretions such as urine, feces, and menstrual blood by various physiological actions. Disposable absorbent products absorb and store these secretions to provide a hygienic and convenient living environment. That is, the disposable absorbent product absorbs and stores urine, feces, menstrual discharge and vaginal discharge excreted from the wearer, and specifically, disposable diapers used by infants or incontinence, and women's sanitary napkins for women ( Sanitary Napkin and Panty Liner.

Disposable absorbent products such as the above is a liquid permeable top sheet that is in direct contact with the wearer's skin, a liquid impermeable back sheet that prevents secretion from leaking to the outside, and is located between the top sheet and the back sheet to absorb the secretion It basically comprises an absorbent to store, and additionally has a wearing means to be worn on the human body. Particularly, in the case of disposable diapers, leakage preventing means are provided on the left and right sides along the longitudinal direction of the absorber so as to prevent leakage of the discharge to the left and right sides of the diaper and to form a pocket.

Disposable absorbent products are, above all, important to have good absorption and storage capacity so that secretions do not leak out. Accordingly, the absorbent absorbing and storing the secretion of the components of the disposable absorbent product may be said to be the most important component.

In general, as absorbents for disposable absorbent articles, polymer particles or fiber particles excellent in absorbency are used. However, when the absorber absorbs moisture, the absorber material particles swell, and the particles are entangled with each other, causing agglomeration.

For example, in the case of diapers among disposable absorbent products, a super absorbent polymer in the form of particles or fibers is used. Superabsorbent polymers include acrylate polymer crosslinks, vinyl alcohol-acrylate copolymer crosslinks, maleic anhydride graft polyvinyl alcohol crosslinks, acrylate-methacrylate copolymer crosslinks, and methylacrylate-vinyl acetate copolymers. Crosslinked product of saponified product, Crosslinked product of starch-acrylate graft copolymer, Crosslinked product of saponified product of starch-acrylonitrile graft copolymer, Carboxymethylcellulose crosslinked product, Isobutylene-maleic anhydride copolymer crosslinked Water and methylene oxide polymer crosslinked materials are used, and such superabsorbent resins can absorb water, saline, urine, blood, serous fluids, and body fluids in amounts from several times to several hundreds of their own weight. useful.

However, super absorbent polymers face a phenomenon called gel blocking when they absorb moisture. Gel adhesion refers to a phenomenon in which the superabsorbent polymer particles are absorbed and swelled, thereby causing the superabsorbent polymer particles to stick together and aggregate. This agglomeration phenomenon reduces the absorption rate per unit weight of the superabsorbent resin because it blocks or blocks the fluid absorption of some of the superabsorbent resin.

As described above, since the absorbent is made of only a super absorbent polymer, it is generally used in combination with other absorbent materials that may reduce the gel adhesion phenomenon because the gel adhesion phenomenon is encountered. For example, in the case of a diaper, the absorbent material is mixed with a fiber material such as fluffy pulp. Such fluffy pulp can act to reduce the gel adhesion by separating the particles of the super absorbent polymer from each other.

However, in such a conventional diaper absorbent body, the super absorbent polymer is not fixed and moves freely to a limited extent during the manufacturing process and / or use (wear). Movement of the superabsorbent resin during manufacture can cause handling loss of the superabsorbent resin during the manufacturing process and result in uneven distribution of the superabsorbent resin particles. In particular, such a problem occurs when the superabsorbent polymer absorbs a large amount of the introduced liquid during use (wearing) and is more severe during swelling or when moving after swelling, causing agglomeration phenomenon. Therefore, if the superabsorbent polymer particles cannot be fixed at the optimum position, the gel adhesion of the superabsorbent resin causes insufficient storage capacity in one area and excessive capacity in another area, and the consumer complains that the absorbent products are aggregated.

In addition, it is preferable to mix the fluffy pulp, which may serve to reduce the gel adhesion and maintain the shape of the absorbent by fixing the particles of the superabsorbent polymer to a limited extent, but the fluffy pulp is bound even when a large amount of the fluffy pulp is mixed and applied. When it is weak and absorbs a large amount of liquid, such agglomeration phenomenon still occurs. Such agglomeration can not maintain the shape of the absorber to reduce the stability of the structure and to interfere with the diffusivity to the entire absorber area and eventually reduce the absorbency.

Accordingly, the present invention has been made to solve the problems of the prior art as described above, to provide a disposable absorbent product which can prevent the aggregation phenomenon by limiting the movement of the absorber material by partially dividing the absorber. The purpose is.

In order to achieve the above object, the present invention provides a liquid permeable top sheet that is in direct contact with the wearer's skin, a liquid impermeable back sheet which prevents secretion from leaking to the outside, and is disposed between the top sheet and the back sheet. In a disposable absorbent article comprising an absorbent for absorbing and storing the present invention, there is provided a disposable absorbent article, characterized in that the absorbent separation junction is formed on the absorbent.                     

That is, the present invention is characterized in that the aggregation phenomenon is prevented by restricting the movement of the absorber material particles forming the absorber by forming an absorber separation junction that divides and partitions the absorber. The absorber separation junction according to the present invention serves as a barrier for limiting the movement of the absorber material particles and is formed in at least one absorber. The absorber separation junction is formed along the longitudinal (vertical), transverse and / or diagonal direction of the absorbent, and in this direction is formed or partially formed over the entire length of the absorbent.

In the present invention, the absorbent body may be made of a conventional absorbent material used in disposable absorbent products such as disposable diapers, sanitary napkins, panty liners, and the like, and particularly, in the case of disposable diapers, the superabsorbent polymer in the form of particles or fibers, and the superabsorbent polymers. It can consist of a mixture of fiber materials, such as fluffy pulp, which can separate resin particles from each other.

Disposable absorbent articles of the present invention include absorbents, disposable diapers, feminine sanitary napkins, panty liners and the like used by infants and incontinents.

Hereinafter, the present invention will be described in more detail by taking a disposable diaper among the disposable absorbent products as described above. The disposable diaper described below describes the preferred configuration of the panty disposable diaper as an exemplary embodiment of the present invention.

This will be described in detail with reference to the accompanying drawings.

1 is a plan configuration diagram of a disposable diaper as showing an embodiment of the present invention. Figure 1 shows a plan view of the unfolded panty-type disposable diaper viewed from the direction in contact with the wearer's skin in order to more clearly show the configuration of the disposable diaper. FIG. 2 is a cross-sectional view of the I-I line of FIG. 1.

The outer shape of the disposable diaper (D) does not necessarily have to be symmetrical structure in the upper and lower sides, but preferably has the hourglass-like appearance by symmetrical in the lateral direction as shown. For convenience of explanation, the part located in the front part of the wearer is located at the front waist part (1), the part of the wearer's crotch part, and the part for absorbing and storing secretions (feces) mainly at the crotch part (2), and the back part of the wearer The part to be divided into rear waist (3).

1 and 2, the disposable diaper (D) is a top sheet 10 to form an inner surface when worn, and a back sheet to form an outer surface when worn and to prevent leakage of secretion to the outside ( 30, an absorbent body 20 positioned between the top sheet 10 and the back sheet 30 to absorb and store secretions, and an inner side band 40 provided on the left and right sides along the longitudinal direction of the diaper D. ) And an outer side corresponding band 45, a waist band 50 formed on the front and rear waist portions (1) and (3), and wearing means.

The topsheet 10 is liquid permeable that is in direct contact with the skin of the wearer and can quickly pass liquid secretions. The top sheet 10 is soft to the touch and does not irritate the skin of the wearer, for example, a fabric, a nonwoven fabric or a thermoplastic film having a plurality of fine pores is used. Fabrics and nonwovens can be made of natural fibers, synthetic fibers, or mixtures thereof. The top sheet 10 is bonded to the absorber 20 and the back sheet 30, the central region is bonded to the absorber 20, the edge is bonded to the back sheet (30).

In the present invention, "adhesion" refers to the fixing of the components in whole or in part using a solid adhesive, hot melt adhesive, heat or ultrasonic waves.

It is preferable to interpose the absorption diffusion sheet 15 between the upper sheet 10 and the absorber 20. The absorption diffusion sheet 15 may provide a cushion to the skin, absorb the secretion passing through the upper sheet 10 at a high speed, and disperse it to the entire area of the absorber 20 to provide rapid absorption, diffusion, and efficient absorption. It is preferable to be able to hold.

For example, the absorption diffusion sheet 15 may use a non-woven fabric having good absorbency. The absorption diffusion sheet 15 may cover the entire surface of the absorbent body 20 so as to cover only a portion of the absorbent diffusion member 20 that covers the site of the absorbent material. It can be interposed to a smaller size.

The liquid permeable top sheet 10 and the absorption diffusion sheet 15 absorb the secretion and diffuse it into the absorber 20. In particular, the absorption diffusion sheet 15 has the secretion absorbed by the absorber 20 in the upper sheet 10. It blocks the transmission to and serves to protect the absorber 20.

The back sheet 30 has at least a liquid impermeable plastic film 32 to prevent leakage of secretion to the outside to prevent contamination of the wearer's clothing or the surrounding environment. Preferably, as shown in FIG. 2, a nonwoven fabric 34 is further included to impart a pure cotton feel (softness). In this case, the central region of the plastic film 32 adheres to the absorber 20, and the nonwoven fabric 34 adheres to the rear surface of the plastic film 32, thereby allowing the nonwoven fabric 34 to form the outermost surface of the diaper D. .                     

The inner side band 40 and the outer side band 45 are leakage preventing means for preventing the discharge of the discharge to the left and right sides of the absorber 20 along the longitudinal direction (vertical direction when viewed in the drawing) of the diaper (D). It adheres to the left and right sides of the diaper D. The inner strain band 40 and the outer strain band 45 is provided with a strain band elastic body 42 is standing by the contraction of the elastic body 42. Accordingly, the inner coagulation band 40 forms a pocket for confining the secretion to the left and right sides of the absorber 20, the outer coagulation band 45 is discharged from the inner coagulation band 40 The curb forms a pocket. In addition, the outer swelling band 45 tightens the leg thighs of the wearer to function as a leg elastic body of the conventional panty-type diaper.

The inner curable band 40 is bonded adjacent to the absorber 20, and the outer curable band 45 is bonded adjacent to the side edge of the diaper (D).

The inner coagulation band 40 and the outer coagulation band 45 are composed of the coagulation band elastic body 42 and the coagulation band flaps 41 and 46, and the coagulation band flap adhesion portion 43, the coagulation band end portion 44, and the coagulation The band end adhesive portion 47 can be divided. The solid band elastic body 42 is coupled to at least the crotch portion 2 along the longitudinal direction of the inner and outer solid bands 40 and 45. That is, the solid band elastic body 42 is coupled to the solid band band flaps 41 and 46 other than the solid band end adhesive portion 47 formed in the front and rear waist portions 1 and 3 to pocket at the crotch portion 2. To be formed.

The solid band flaps 41 and 46 are made of a liquid impermeable film such as a hydrophobic nonwoven fabric or a waterproof nonwoven fabric. When a hydrophobic nonwoven fabric is used, the lumped band flaps 41 and 46 may be formed in two layers to enhance the hydrophobic effect, and in this case, the two bands of the lumped band flaps 41 and 46 may be bonded together. It is preferable.

The corresponding band flap adhesive portion 43 is a portion where the corresponding band flaps 41 and 46 are adhered to the diaper D. At this time, the coagulation band flap adhesive portion 43 of the inner coagulation band 40 may be located at the upper portion of the absorber 20 to be a point to be bonded to the upper sheet 10, or to the outside outside the absorber 20 Position so that it can be glued to the plastic film 32.

The rotting band distal end 44 is the portion where the rotting band flaps 41 and 46 contact the wearer's skin. Therefore, at least in the crotch portion 2, the solid band end portion 44 is in close contact with the skin by the elastic body 42 to prevent the release of secretions.

The rotatable band end adhesive portion 47 is a portion where the longitudinal end portions of the rotatable band flaps 41 and 46 are bonded to the front waist 1 and the rear waist 3. That is, the rotatable band end adhesive portion 47 is the rotatable band flap 41, 46 so that the rotatable band flap 41, 46 forms an absorbent pocket by the rotatable band flap adhesive portion 43 and the rotatable band elastic body 42. Is the portion that fixes the longitudinal end portion of the. The length of the corresponding band end adhesive portion 47 is formed to be 50 ~ 100mm.

The coagulation band elastic body 42 is formed by one or more elastic bodies and is coupled to the coagulation band flaps 41 and 46 between the coagulation band flap adhesion portion 43 and the coagulation band end portion 44. In this case, the solid-state band elastic body 42 may be one having an elastic modulus of 100 to 300%, preferably one having 180 to 200%. In addition, the elastic modulus of the coagulation band elastic body 42 may be formed to have an inclination by increasing the elastic modulus of the elastic body closer to the coagulation band end portion 44 or closer to the coagulation band flap adhesion portion 43. The solid band elastic body 42 may be an elastic yarn, and the elastic yarn may be, for example, a polyurethane spandex or a natural rubber.

In addition, in configuring the inner side band 40 and the outer side band 45, the inner side and outer side bands 40 and 45 may be integrally formed using a single band band flap 41 and 46. Can be. That is, the inner corresponding band flap 41 and the outer corresponding band flap 46 may be connected to one, and may have an inner flap 48 between the inner corresponding band 40 and the outer corresponding band 45. In addition, the inner flap 48 may be connected to the inner and outer intermittent bands 40 and 45 by fixing both ends of the inner band flap adhesive portion 43 using a separate flap.

In addition, the outer flap band 45 may have an outer flap 49. The outer flap 49 may be a unitary flap extending from the outer corresponding band flap 46, or a separate flap may be used to be bonded to the outer corresponding band flap adhesive portion 43. At this time, the width of the outer flap 49 may be 10 to 50mm, preferably 15 to 35mm. If formed less than 10mm and 50mm or more is not preferable because it inhibits the appearance image of the diaper (D).

In addition to the disposable diaper (D) has a waistband 50 and wearing means to be worn and maintained on the human body.

The waist band 50 is formed by bonding an elastic body to the front and rear waist portions (1) (3) of the disposable diaper (D). The elastic body of the waistband 50 may be a polyurethane foam (Polyurethane Foam), polyurethane film (Polyurethane Film), polyurethane nonwoven elastomer or elastic yarn, the elastic yarn is polyurethane spandex (polyurethane spandex) or natural rubber Can be used. Waist band 50 may be formed over the entire width or partially short in the transverse direction of the diaper (D).

The wearing means are formed in the front waist 1 and the rear waist 3 and mechanical fastening means such as re-adhesive tapes or hook-and-loop systems are used. For example, the wearing means may be attached to the back sheet 30 of the front waist 1, the target portion 65 to provide an adhesive area of the adhesive portion 61, and the back sheet 30 of the rear waist 3 It may be composed of a fixing portion 62 fixed to the adhesive portion 61 and the adhesive portion 61 is formed integrally with the fixing portion 62 and the adhesive material is adhered to enable the re-adhesion with the target portion 65.

According to the present invention, the absorber separation junction 25 is formed in the absorber 20.

The absorbent body 20 can be shaped into a T-shape, hourglass, straight or other shape, in which the absorbent body has various shapes, lengths and numbers depending on the structure and desired properties of the absorbent body 20 according to the invention. Separation junction 25 is formed.

The absorber secretion junction 25 may be formed by a sewing method, an adhesive method using an adhesive, or a thermal fusion method using heat or ultrasonic waves. In the adhesive method, an adhesive such as a solid adhesive or a hot melt adhesive may be used, and a hot melt adhesive method using a hot melt adhesive is preferable. This absorber secretion junction 25 is formed in its longitudinal direction (vertical direction when viewed in the figure) or transverse direction of the absorbent body 20, or is formed in the longitudinal direction and the transverse direction. In addition, it may be formed in a diagonal direction, and may be formed over the entire length of the absorber 20 or partially formed in this direction.

The absorber separation junction 25 divides the absorber 20 into partial portions to block the movement of the absorber particles forming the absorber 20 to prevent agglomeration.

The absorbent performance and the agglomeration prevention performance of the absorbent body 20 may depend on the material and the shape and number of the absorbent separating junctions 25 of the absorbent body 20.

In the present invention, the absorber 20 is made of a super absorbent polymer 21 or preferably made of a mixture of the super absorbent polymer 21 and the downy pulp 22, and more preferably the super absorbent polymer 21 and down Pulp 22 and absorbent bonding sheet 23.

The super absorbent polymer 21 is in the form of particles or fibers well known in the art, such as acrylate polymer crosslinks, vinyl alcohol-acrylate copolymer crosslinks, maleic anhydride graft polyvinyl alcohol crosslinks. Water, acrylate-methacrylate copolymer crosslinked product, crosslinked product of saponified methyl acrylate-vinyl acetate copolymer, starch-acrylate graft copolymer crosslinked product, starch-acrylonitrile graft copolymer soap A crosslinked product of a cargo, a carboxymethylcellulose crosslinked product, an isobutylene-maleic anhydride copolymer crosslinked product, a methylene oxide polymer crosslinked product and the like can be used. And these may be used independently and may be used in mixture. It is preferable that the average particle diameter of these superabsorbent polymer particles is 5-1,000 micrometers, More preferably, the thing which has a diameter of 100-600 micrometers is used.

The fluffy pulp 22 may be a pulverized fibrous web or sheet-like wood pulp well known in the art.

The absorbent bonding sheet 23 constitutes the absorbent body 20 in a structure in which the superabsorbent resin 21 and the fluffy pulp 22 are laminated on the upper or lower layer of the absorber material or laminated on both the upper and lower layers. . At this time, the structure laminated on both the upper layer and the lower layer may be in the form of wrapping as shown in FIG. The absorbent bonding sheet 23 is preferably using a tissue or a non-woven fabric, the tissue is preferably used in the wet steel tissue that is wet-treated, which is commonly used in this field, the nonwoven fabric is a hydrophobic polypropylene material It is possible to use a non-woven fabric composed of long fibers or short fibers, or a hydrophilic non-woven fabric treated with hydrophilic treatment.

The most preferable structure of the absorbent body 20 in the present invention is composed of the absorbent material in which the superabsorbent resin 21 and the fluffy pulp 22 are mixed and the absorbent bonding sheet 23 of the tissue or nonwoven fabric as shown in FIG.

When the absorbent body 20 is composed of the superabsorbent resin 21 and the downy pulp 22 and the absorbent bonding sheet 23 in such a manner as to surround them, the absorbent separating junction 25 has a superabsorbent resin 21 and the downy pulp ( It is preferable that 22) is not interposed. That is, as shown in FIG. 2, the up-and-down absorption bonding sheet 23 is bonded together, and the absorber separation junction part 25 is formed.

In addition, in the use of the absorbent bonding sheet 23, in the case where the absorbent separation bonding portion 25 is formed of a hot melt adhesive by hot melt bonding, it is preferable to use a tissue. When forming by thermal fusion using ultrasonic waves, it is preferable to use a nonwoven fabric.

 In addition, the absorber separation junction 25 is one or more places in the longitudinal direction (vertical direction) of the absorbent body 20 to stably diffuse the absorbed secretion (body fluid, urine) in the longitudinal direction of the absorbent body 20. It is preferable to form. More preferably, as shown in FIG. 3, two places are formed in the longitudinal direction so that the absorber 20 can be divided into three. However, the number of absorber separation junction portions 25 is not particularly limited in this way.

As illustrated in FIG. 4, the absorber separation junction 25 may form three locations in the transverse direction of the absorber 20, and are formed in both the longitudinal direction and the transverse direction as illustrated in FIG. 5, but in the longitudinal direction. Can form two places and three places in a horizontal direction.

3 to 5 illustrate various structures and numbers according to the shape of the absorber separation junction 25, wherein the absorber separation junction 25 may be formed in any direction in the longitudinal direction, the horizontal direction, and the diagonal direction at one or more locations. Can be. The absorber separation junction 25 according to the present invention may have a different shape, size, and number depending on absorbent products such as diapers and sanitary napkins, and various methods may be applied.

Absorbent separation junction 25 as described above forms a blocking film on the absorber 20 to control the flow of the absorbent material, for example, the superabsorbent resin 21 and the fluffy pulp 22 in the case of diapers, and rapid absorption and It plays a role of diffusion. That is, the absorber separation junction 25 reduces the gel adhesion phenomenon of the superabsorbent polymer and at the same time restricts the movement of the superabsorbent polymer particles and the fluffy pulp 22 during or after swelling to prevent agglomeration. As the agglomeration is prevented as described above, the structural stability of the absorbent body 20 is excellent and the absorption performance is improved.

Hereinafter, the present invention will be described in more detail through specific test examples and comparative examples, but the technical scope of the present invention is not limited by the following examples.

Example 1

Liquid-permeable topsheet 10, liquid-impermeable backsheet 30, and absorber 20 therebetween, absorption diffuser sheet 15 on top of absorber 20, inner and outer coagulation bands 40, 45 , Made of a disposable diaper (D) as shown in Figures 1 and 2 consisting of a waistband 50 and wearing means. At this time, the absorbent body 20 was made to wrap around the superabsorbent polymer 21 and the downy pulp 22 using tissue as the absorbent bonding sheet 23.

Further, as shown in Fig. 3, the absorber 20 is formed with two absorbent separation junctions 25 in the longitudinal direction so as to be divided into three equally in the longitudinal direction. Herein, the absorber separation bonding portion 25 was formed by bonding the upper and lower layer tissues using a hot melt method using a hot melt adhesive (SJ-260T, Samjung Industries Co., Ltd.). The anti-agglomeration properties were evaluated and the results are shown in the following [Table 1].

<Evaluation method of prevention of aggregation property>                     

In the evaluation of the anti-aggregation characteristics of the absorbent products, the disposable diapers (D) to be tested were provided to 60 users and used for three days. The average scores are shown in the following [Table 1].

<Criteria>

5 points | pieces: It was good that there was no aggregation at all during use.

4 points | pieces: In the case of a large amount of urination due to long filling during use, agglomeration sometimes occurred.

3 points | pieces: The lump occurred occasionally.

2 points | pieces: I used to urinate once and used so much that it had to change frequently.

1 point | piece: It was difficult to use it even if it did not urinate during use.

Example 2

Disposable diaper (D) was produced in the same configuration as in Example 1, wherein at this time, the absorbent body 20 is formed of three absorbent separation junctions 25 in the transverse direction such that the absorber 20 is divided into four equally in the transverse direction. I was. Here, the absorber separation junction 25 was formed by bonding the upper and lower layer tissues by a hot melt method using a hot melt adhesive (SJ-260T, SJ-260T) as in Example 1, and the diaper (D) thus obtained. In the same manner as in Example 1 to evaluate the anti-agglomeration properties and the results are shown in the following [Table 1].

Example 3                     

Disposable diaper (D) was produced in the same configuration as in Example 1, wherein the absorbent body 20 has two absorbent separation junctions 25 in the longitudinal direction so as to be divided into three equally in the longitudinal direction as shown in FIG. Then, three absorber separation junctions 25 were formed in the transverse direction so as to be divided into four equally in the transverse direction as shown in FIG. 4 to divide the absorber 20 into 12 equal parts as shown in FIG. Here, the absorber separation junction 25 was formed by bonding the upper and lower layer tissues by a hot melt method using a hot melt adhesive (SJ-260T, SJ-260T) as in Example 1, and the diaper (D) thus obtained. In the same manner as in Example 1 to evaluate the anti-agglomeration properties and the results are shown in the following [Table 1].

Example 4

Liquid-permeable topsheet 10, liquid-impermeable backsheet 30, and absorber 20 therebetween, absorption diffuser sheet 15 on top of absorber 20, inner and outer coagulation bands 40, 45 , Made of a disposable diaper (D) as shown in Figures 1 and 2 consisting of a waistband 50 and wearing means. At this time, the absorbent body 20 was formed in a form in which a nonwoven fabric was used as the absorbent bonding sheet 23 in the mixed material of the super absorbent polymer 21 and the downy pulp 22.

Further, as shown in Fig. 3, the absorber 20 is formed with two absorbent separation junctions 25 in the longitudinal direction so as to be divided into three equally in the longitudinal direction. Herein, the absorber separation junction part 25 was formed by joining the upper and lower layer nonwoven fabrics in a heat fusion method using heat. The diaper (D) thus obtained was evaluated in the same manner as in Example 1 to evaluate the anti-aggregation characteristics. It is shown in Table 1 below.                     

Example 5

Disposable diaper (D) was produced in the same configuration as in Example 4, wherein at this time, the absorbent body 20 is formed of three absorbent separating junctions 25 in the transverse direction so as to be divided into four equally in the transverse direction. I was. Herein, the absorber separation junction part 25 was formed by joining the upper and lower layer nonwoven fabrics in a heat fusion method using heat. The diaper (D) thus obtained was evaluated in the same manner as in Example 1 to evaluate the anti-aggregation characteristics. It is shown in Table 1 below.

Example 6

Disposable diaper (D) was produced in the same configuration as in Example 4, wherein the absorbent body 20 has two absorbent separation junctions 25 in the longitudinal direction so as to be divided into three equally in the longitudinal direction as shown in FIG. After the formation, three absorber separation junctions 25 were formed in the transverse direction such that the absorber 20 was divided into 12 equally as shown in FIG. Herein, the absorber separation junction part 25 was formed by joining the upper and lower layer nonwoven fabrics in a heat fusion method using heat. The diaper (D) thus obtained was evaluated in the same manner as in Example 1 to evaluate the anti-aggregation characteristics. It is shown in Table 1 below.

Comparative Example 1

The same structure as that of the first embodiment is the same as that of the conventional disposable diaper, but the absorber 20 is not formed with the absorber separation junction 25. The diaper (D) was evaluated in the same manner as in Example 1 to prevent the agglomeration properties and the results are shown in the following [Table 1].

     <Evaluation result of aggregation prevention property> Example 1                                              Example 2 Example 3 Example 4 Example 5 Example 6 Comparative Example 1 4                                              3 4 5 4 5 2

As can be clearly seen in Table 1, in the case of the conventional absorbent product (Comparative Example 1), there were many complaints of the user about the agglomeration, but according to the present invention, the absorber separation junction 25 in the absorber 20 according to the present invention. In the case of the formation, the agglomeration phenomenon was remarkably improved, and it was found that the customer satisfaction was excellent. In particular, when the absorber separation bonding portion 25 is bonded using a hot melt adhesive (Examples 1 to 3), the non-woven fabric is bonded to each other by using a heat-sealing method using the absorbent bonding sheet 23 as a nonwoven fabric (Example 4). When 6) was used, it was confirmed that the joints were firmly expressed, which showed more excellent agglomeration prevention effect. Further, when the absorber separation junction 25 is formed in the longitudinal direction (Examples 1 and 4) rather than in the horizontal direction (Examples 2 and 5), and in both the longitudinal and transverse directions (execution) It was found that Example 3, Example 6) was more excellent in the aggregation prevention effect.

Therefore, the present invention has the effect of restricting the movement of the absorber material by forming an absorber separation junction that partially divides the absorber, thereby significantly preventing agglomeration. Such agglomeration prevention effect, after all, greatly improves the absorption performance of the product. In particular, in the case of disposable diapers, the gel adhesion phenomenon of the superabsorbent polymer is reduced, and at the same time, the aggregation of the superabsorbent polymer particles is prevented during or after swelling to prevent aggregation, thereby exhibiting excellent absorption diffusion and structural stability.

Claims (8)

A liquid permeable topsheet 10 in direct contact with the wearer's skin, a liquid impermeable backsheet 30 that prevents secretions from leaking to the outside, and positioned between the topsheet 10 and the backsheet 30 In the disposable absorbent product which absorbs and stores secretion, but comprises an absorbent body 20 composed of absorbent material and upper and lower absorbent bonding sheet 23, Disposable absorbent, characterized in that the absorbent separation bonding portion 25 is formed by adhering the upper and lower layer absorbent bonding sheet 23 to the absorber 20 by a hot melt adhesive method or a heat fusion method using heat or ultrasonic waves. product. The disposable absorbent article as set forth in claim 1, wherein said absorbent separating junction (25) is formed along the longitudinal direction (vertical direction) of the absorbent body (20). The disposable absorbent article as set forth in claim 1, wherein said absorbent separating junction (25) is formed along the transverse direction of said absorbent member (20). 2. The disposable absorbent article as set forth in claim 1, wherein said absorbent separating junction (25) is formed along the longitudinal (vertical) and transverse directions of said absorbent (20). delete delete delete The disposable absorbent article as set forth in claim 1, wherein said absorbent bonding sheet (23) is a tissue or a nonwoven fabric.

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