KR100437449B1 - Disposable diaper having double barrier cuff - Google Patents

Abstract

The present invention relates to a disposable absorbent product having a double coagulation band in which a double coagulation band is formed to maximize leakage prevention effect. The liquid permeable top sheet 6, the liquid impermeable back sheet 4, and the top sheet Disposable absorbent product having an absorbent body (5) and a fastening means mounted between the (6) and the back sheet (4), each having at least two on each side of the crotch portion (2) between the outer side and the side edges of the absorbent body (5). This is achieved by forming the above solidifying band.

Therefore, by forming the coagulation band in double, there is an effect of significantly reducing the occurrence of leakage in the prone position as well as in the side-down position.

Description

Disposable absorbers with double coagulation bands {Disposable diaper having double barrier cuff}

The present invention relates to a disposable absorbent product having an excellent leakage preventing effect. More specifically, the present invention relates to a disposable absorbent product having a double coagulation band formed by forming a double coagulation band to maximize leakage preventing effect.

Common disposable absorbent products are products that absorb body fluids excreted by various physiological actions, that is, products that absorb urine, feces, menstrual discharge and vaginal discharge. More specifically, disposable diapers used by infants or incontinence (disposable diaper), sanitary napkins, panty liners, and the like.

The present invention is particularly preferably applied to disposable diapers in disposable absorbent articles.

Disposable diapers consist of a liquid-permeable top sheet that is in direct contact with the wearer's skin when worn, a liquid-impermeable back sheet that forms an outer surface when worn, a liquid-permeable top sheet, and It consists of an absorbent core and a fastening means positioned between the liquid impermeable back sheet.

Among the components of these disposable diapers, a liquid permeable top sheet is a synthetic nonwoven fabric or a film having a hole formed therein so that body fluid can quickly pass through the absorbent body. Synthetic nonwoven fabrics are usually used by hydrophilic treatment of hydrophobic fibers in order to quickly transfer the body fluid to the absorber.

In addition, the absorber is typically made of fluff pulp, super absorbent polymer (tissue) and the tissue (tissue) for packaging it, and absorbs the body fluid passing through the liquid permeable top sheet at high speed, Once absorbed, the body fluid absorbs and retains the body fluid to prevent contact with the skin again.

The liquid-impermeable back sheet prevents body fluids absorbed by disposable diapers from leaking under the absorber to contaminate the wearer's clothing or the surrounding environment.It mainly uses polyethylene film, and nonwoven fabric is applied to the polyethylene film. Adhesion may improve the soft feel in the feel of the material.

In addition, the fastening means consisting of a re-adhesive fastening means and a front fastening means is further included to maintain the disposable diaper configured as described above on the body.

These materials are bonded and fixed by hot melt adhesive bonding, heat fusion or other commercially available bonding methods.

The technical level of disposable absorbent products, including disposable diapers, incontinence adult diapers, and women's sanitary napkins, can be adjusted so that the user's discomfort in terms of the amount of absorbing body fluid discharged by physiological action.

Disposable diapers are progressing in the direction of improving the wearing comfort in meeting basic performance such as absorption rate or absorption amount, and as one method for this, ultra-thin disposable diapers have appeared by making the absorber thinner.

One easy way to make ultra-thin disposable diapers is to use a small amount of fluffy pulp that takes up a lot of volume, and to use a lot of superabsorbent polymers.

In such ultra-thin disposable diapers, the ratio of the mixed content of the downy pulp and the super absorbent polymer decreases the strength of the absorber, and the width of the absorbent decreases due to the wearer's activity or movement, which results in crushing and cracking. . In addition, the phenomenon that the initial wearing state of the disposable diaper is not continuously maintained due to the wearer's movement and sags downward. The absorbent thus deformed has a reduced absorption area and thus has an inadequate absorption function. The liquid-permeable top sheet is hydrophilic, but the hydrophilic surface is changed to hydrophobic by repeated urination. The delay in delivery of fluid increases the fluid body fluid present on the surface of the absorbent and liquid permeable topsheet. Furthermore, sagging of disposable diapers reduces the adhesion between the diaper and the wearer's skin, resulting in crevices in the legs, which are more likely to occur due to fluid fluid, especially when urinating in a side lying position. The possibilities are even greater.

As a means for preventing such leakage, a barrier cuff and a leg elastic body are formed on the outer side of the absorber side, and the leg elastic body is formed in a straight or curved shape across the waist portion through the crotch portion outside the band. . Leg elastics are elastics formed on the flap on the outer side of the stiffness band, and when they are worn, they function to adhere disposable diapers to the thighs of the wearer. It is not sufficient to prevent the occurrence of leaks, and therefore a means for enhancing the tightening function of the leg thigh portion of the wearer is required.

SUMMARY OF THE INVENTION An object of the present invention is to provide a disposable diaper having a high leakage preventing function by forming two coagulation bands having different heights and heights to tighten the wearer's leg thighs in order to solve the problem of the above-mentioned leakage. There is.

1 is a plan view schematically showing a disposable absorbent article having a double curd band according to the present invention.

2 is a partial cross-sectional view when one specific embodiment of the present invention is cut along the line A-A of FIG.

3 is a partial cross-sectional view taken along the line B-B in FIG.

4 is a partial cross-sectional view when the other specific embodiment of the present invention is cut along the line A-A of FIG.

5 is a partial cross-sectional view of another specific embodiment of the present invention when taken along line A-A of FIG.

※ Explanation of code for main part of drawing

1: forearm 2: crotch

3: rear waist portion 4: back seat

5 absorber 6 top sheet

7 inner curd band 8 second nonwoven fabric

9: tissue 10: waistband

11: fluffy pulp 12: super absorbent polymer

13: end of the corresponding band 14: front fastening means

15: back fastening means 16: solidified band elastic body

17: inner curd band flap adhesion portion 18: fastening means fixing portion

19: coagulation band end adhesive portion 20: inner coagulation band flap

21: side flap 22: inner side flap

23: outer side flap 24: curd band side flap

25: outer curd band 26: outer curd band flap adhesion portion

27: outside curd band flap

Disposable absorbent article having a double solidification band according to the present invention is a disposable absorbent article having a liquid-permeable topsheet, a liquid-impermeable backsheet, an absorber and a fastening means mounted between the topsheet and the backsheet, wherein At least two or more solidification bands are formed on each side of the crotch portion between the absorber outer side and the side edge.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown in Figures 1 to 5, the disposable absorbent article having a double solidification band according to the present invention, a liquid permeable top sheet 6, a liquid impermeable back sheet 4, the top sheet 6 Disposable absorbent product having an absorbent body (5) and a fastening means mounted between the backsheet (4) and the backsheet (4), each of at least two or more corresponding bands on the left and right sides of the crotch portion (2) between the outer side and the side edges of the absorbent body (5) Characterized by forming a.

Disposable diaper (D) has an appearance in the form of an hourglass divided into the front waist (1), crotch (2) and the back waist (3). The outer shape of the disposable diaper (D) does not necessarily have to be symmetrical in the right and left and the front and rear, but preferably has a symmetrical structure.

In the present invention, the absorbent body 5 is inserted between the liquid-impermeable back sheet 4 and the liquid-permeable upper sheet 6 to be fixed using a hot melt adhesive. In the present invention, the absorber 5 is thin. A liquid permeable second nonwoven fabric 8 may be used on the top or bottom of the liquid permeable top sheet 6 to provide cushioning to the wearer's skin and to maintain a fast absorbing force upon urination. The liquid permeable top sheet 6 and the liquid permeable second nonwoven fabric 8 diffuse urine, block the transfer of urine absorbed by the absorber 5 to the liquid permeable top sheet 6, and 5) Protects the function.

The absorbent body 5 is composed of a downy pulp 11, a super absorbent polymer 12 and a tissue 9 for wrapping the same, and the performance of the absorbent member 5 is the content of the downy pulp 11 and the super absorbent polymer 12. Depends on. In the present invention, the outer shape of the absorber 5 can be molded not only in the T-shape but also in shapes other than the hourglass shape and the straight shape.

On the left and right sides of the absorbent body 5, the inner coagulation band 7 and the outer coagulation band 25 are formed with leakage preventing means to form a pocket for confining the body fluid which is separated from the absorbent body 5. The outer coagulation band 25 also functions to tighten the thigh portion of the wearer's leg and forms a pocket for confining body fluids separated from the inner coagulation band 7.

The inner coagulation band 7 and the outer coagulation band 25 are formed between the absorbent body 5 and the side diaper of the disposable diaper, and the inner coagulation band 7 formed on the side of the absorbent body 5 and the side edge of the disposable diaper. The adjacent outer coagulation band 25 is formed.

Alternatively, the inner coagulation band 7 is formed on the absorber 5, and the outer coagulation band 25 is formed between the inner coagulation band 7 and the side edges of the disposable diaper outside the absorber 5.

In addition, the inner curd band 7 and the outer curd band 25 may be formed of a flap adhesive portion connected to one, or may be formed of the inner curd band flap adhesive portion 17 and the outer curd band flap adhesive portion 26, respectively.

The inner coagulation band 7 includes an inner coagulation band flap attachment portion 17, a coagulation band end portion 13, a coagulation band end attachment portion 19, a coagulation band elastic body 16, an inner coagulation band flap 20, and a coagulation band side flap. It consists of 24. In addition, the outer side band 25, the outer band band flap 26, the band end 13, the band band end 19, the band elastic body 16, the outer band band flap 27, the band The side flap 24 is comprised. In addition, if necessary, the configuration requirements for the inner side band 7 and the outer side band 25 may be formed differently.

The inner side band flap 20 and the outer side band flap 27 have at least a portion of the crotch portion 2 at the portion other than the pore band end-adhesive portion 19 by the pore band elastic body 16 on the outside of the absorbent body 5. To form.

Hydrophobic nonwoven fabric or waterproof nonwoven film may be used as the material of the inner solidification band 7 and the outer solidification band 25. When the hydrophobic nonwoven fabric is used, the inner solidification band is doubled to enhance the hydrophobic effect. The flap 20 and the outer side band flap 27 are formed, and the gap between the side band flaps may be bonded with an adhesive.

One or more inner coagulation bands 7 are provided on the inner coagulation band flap 20 between the inner coagulation band flap attachment portion 17 and the coagulation band end portion 13 so that the coagulation band end portion 13 closely adheres to the wearer's skin. An elastic body is formed, and the elastic force modulus of the solidified band elastic body 16 may be formed at 100 to 300%, and preferably at 180 to 200%. In addition, the elastic modulus of the coagulation band elastic body 16 may be formed to have an elastic gradient by increasing the elastic modulus of the elastic body as it becomes closer to the coagulation band end portion 13 or closer to the inner coagulation band flap adhesion portion 17. The elastic band elastic body 16 is mainly used for the elastic yarn, the elastic yarn is used polyurethane spandex or natural rubber.

Similar to the inner coagulation band 7, the outer coagulation band 25 has an outer coagulation band flap adhesion portion 26 and a coagulation band end portion 13 so that the coagulation band end portion 13 closely adheres to the wearer's skin. It is possible to form one or more elastic bodies in the outer curd band flap 27 in between.

The corresponding band end portion 13 is a portion where the inner band band flap 20 is in contact with the wearer's skin, and the inner band band flap adhesion unit 17 has an inner band band flap 20 inside the disposable diaper absorbent body 5 outside. It is a part bonded to the side flap 22 in the longitudinal direction of a disposable diaper.

The side flap 21 on the outside of the inner solidification band 7 is a flexible sheet having a nonwoven fabric layer and a liquid impermeable back sheet 4 adhered to an upper portion of the liquid impermeable back sheet 4 on the outer side of the absorbent body 5. sheet) or a liquid-impermeable backsheet 4 layer only or a liquid-impermeable backsheet 4 and a solid band side flap 24.

The corresponding band side flap 24 refers to the flap that extends outward, including the inner corresponding band flap attachment 17. In at least the crotch portion 2 of the disposable diaper, the side flap 21 has the inner side flap 22 and the outer side of the inner side band flap adhesive portion 17 of the inner side band 7 along the longitudinal bonding point of the disposable diaper. It is divided into flaps 23, the width of the outer side flap 23 is limited to 20 to 50mm, preferably 15 to 35mm. When the width of the side flap 21 outside the absorber 5 is formed to be less than 10 mm and 50 mm or more, it is not preferable because the appearance of the disposable diaper may be impaired.

The rotatable band end adhesive portion 19 has both sides in the longitudinal direction of the disposable diaper such that the inner rotatable band flap 20 forms an absorbent pocket outside the absorber 5 by the inner rotatable band flap adhesive portion 17 and the rotatable band elastic body 16. In the front waist part 1 and the rear waist part 3 of the edge of an edge, the adhesive part which fixes the inner side band flap 20 to the inner side band flap adhesion part 17 and the outer side band flap adhesion part 26 is called. The coagulation band end adhesive portion 19 is formed to be partially fixed on the absorbent body 5, and it is preferable to form the non-adhesive portion on the side flap 21 portion outside the absorbent body 5. The length of the corresponding band end adhesive part 19 is formed so that it may become 50-100 mm normally in the front waist part 1 and the back waist part 3 of a disposable diaper. The terminal adhesive portion of the outer side coagulation band 25 may be maintained in an unbonded state.

In addition to the disposable diaper is a conventional fastening means and waistband 10 is further formed to be worn and maintained on the wearer's body.

The fastening means is a re-adhesive back surface consisting mainly of fastening means fixing portion 18 of the re-adhesive fastening means fixed to the edge of the side flap 21 of the rear waist 3 of the disposable diaper, and a free end that is not fixed. It is formed in the transverse direction of the fastening means 15 and the front waist 1, the rear fastening means 15 is composed of a front fastening means 14 to provide a target (target) area that can be attached and detached.

The waistband 10 is formed by fixing an elastic body to the front waist 1 and the back waist 3 of the disposable diaper. As the elastic body used as the waistband 10, a polyurethane foam, a polyurethane film, a polyurethane non-woven fabric elastomer, and an elastic yarn are used. Polyurethane spandex or natural rubber is used. The waist elastic of the waistband 10 may be formed across the width of the disposable diaper product transversely or partially short between the longitudinal end of the disposable diaper and the outer side of the absorbent body 5.

Hereinafter, preferred embodiments and comparative examples of the present invention will be described.

The following examples are intended to illustrate the invention and should not be understood as limiting the scope of the invention.

Example 1

The liquid permeable top sheet 6, the liquid impermeable back sheet 4, and the absorbent body 5 are inserted and fixed between the top sheet 6 and the back sheet 4, and the normal waistband 10 In a conventional disposable diaper which includes a fastening means, a coagulation band is formed at least in the crotch portion 2, and two coagulation bands are formed between the outer side of the absorber 5 and the side edges. The two coagulation bands are divided into an inner coagulation band 7 adjacent to the absorber 5 and an outer coagulation band 25 adjacent to the disposable diaper side edges, and the inner coagulation band 7 and the outer coagulation band 25 are coagulation bands. The flap, the curd band flap adhesive part, the curd band elastic body 16, the curd band end part 13, and the curd band end adhesive part formed by bonding the curd band end part 13 in the front waist part 1 and the back waist part 3, respectively. It consisted of (19). The inner coagulation band flap 20 and the outer coagulation band flap 27 are composed of the same material in which the inner coagulation band flap 20 and the outer coagulation band flap 27 are connected in one piece, and the coagulation band elastic body 16 has two. The strands were formed of elastic yarn having an elastic modulus of 210%, and the height from the coagulation band flap attachment portion to the coagulation band end portion 13 was formed such that the inner coagulation band 7 was 35 mm and the outer coagulation band 25 was 10 mm. The inner coagulation band 7 adheres the coagulation band end adhesive portion 19 onto the absorber 5, but the outer coagulation band 25 is in a non-adhesive state where the coagulation band end adhesive portion 19 is not formed. Disposable diapers were made.

Example 2

A disposable diaper was produced in the same manner as in Example 1 except that the height from the corresponding band flap adhesion portion of the outer corresponding band 25 to the corresponding band end portion 13 was 20 mm.

Example 3

The liquid permeable top sheet 6, the liquid impermeable back sheet 4, and the absorbent body 5 are inserted and fixed between the top sheet 6 and the back sheet 4, and the normal waistband 10 In a conventional disposable diaper which includes a fastening means, a coagulation band is formed at least in the crotch portion 2, and two coagulation bands are formed between the outer side of the absorber 5 and the side edges. The two coagulation bands are divided into an inner coagulation band 7 adjacent to the absorber 5 and an outer coagulation band 25 adjacent to the disposable diaper side edges, and the inner coagulation band 7 and the outer coagulation band 25 are coagulation bands. The flap, the curd band flap adhesive part, the curd band elastic body 16, the curd band end part 13, and the curd band end adhesive part formed by bonding the curd band end part 13 in the front waist part 1 and the back waist part 3, respectively. It consisted of (19). The inner coagulation band flap 20 and the outer coagulation band flap 27 are composed of the same material in which the inner coagulation band flap 20 and the outer coagulation band flap 27 are connected in one piece, and the coagulation band elastic body 16 has two. The strands were formed of elastic yarn having an elastic modulus of 210%, and the height from the coagulation band flap adhesion portion to the coagulation band end portion 13 was formed such that the inner coagulation band 7 was 15 mm and the outer coagulation band 25 was 35 mm. The inner coagulation band 7 bonded the coagulation band end adhesive portion 19 to the absorber 5, but the outer coagulation band 25 was in a non-adhesive state where the coagulation band end adhesion portion 19 was not formed. Disposable diapers were made.

Example 4

Same as Example 1 except that the height from the corresponding band flap adhesion portion of the outer side coagulation band 25 to the end of the coagulation band 13 is 10 mm, and the ends of the outer side coagulation band 25 are bonded to the outside. To prepare a disposable diaper.

Example 5

Same as Example 1, except that the height from the corresponding band flap adhesion portion of the external corresponding band 25 to the corresponding band end 13 is 15 mm, and the ends of the external corresponding band 25 are bonded to the outside. To prepare a disposable diaper.

Example 6

Same as Example 1, except that the height from the corresponding band flap adhesion portion of the external corresponding band 25 to the corresponding band end portion 13 is 20 mm, and the ends of the external corresponding band 25 are bonded to the outside. To prepare a disposable diaper.

Example 7

Same as Example 1, except that the height from the corresponding band flap adhesion portion of the outer corresponding band 25 to the corresponding band end portion 13 is 10 mm, and the ends of the external corresponding band 25 are bonded inward. To prepare a disposable diaper.

Example 8

Same as Example 1, except that the height from the corresponding band flap adhesion portion of the external corresponding band 25 to the corresponding band end 13 is 15 mm, and the ends of the external corresponding band 25 are bonded inward. To prepare a disposable diaper.

Example 9

Same as Example 1, except that the height from the corresponding band flap adhesion portion of the external corresponding band 25 to the corresponding band end portion 13 is 20 mm, and the ends of the external corresponding band 25 are bonded inward. To prepare a disposable diaper.

Example 10

The inner coagulation band 7 and the outer coagulation band 25 are doubled, the height from the coagulation band flap adhesion portion of the outer coagulation band 25 to the coagulation band end portion 13 is 10 mm, and the outer coagulation band 25 Disposable diaper was prepared in the same manner as in Example 1 except that the end of the) to the outside.

Example 11

The inner coagulation band 7 and the outer coagulation band 25 are doubled, the height from the coagulation band flap adhesion portion of the outer coagulation band 25 to the coagulation band end portion 13 is 15 mm, and the outer coagulation band 25 Disposable diaper was prepared in the same manner as in Example 1 except that the end of the) to the outside.

Example 12

The inner coagulation band 7 and the outer coagulation band 25 are doubled, the height from the coagulation band flap adhesion portion of the outer coagulation band 25 to the coagulation band end portion 13 is 20 mm, and the outer coagulation band 25 Disposable diaper was prepared in the same manner as in Example 1 except that the end of the) to the outside.

Comparative Example 1

A disposable diaper was produced in the same manner as in Example 1 except that the height from the corresponding band flap adhesion portion of the outer corresponding band 25 to the corresponding band end portion 13 was 5 mm.

Comparative Example 2

The liquid permeable top sheet 6, the liquid impermeable back sheet 4, and the absorbent body 5 are inserted and fixed between the top sheet 6 and the back sheet 4, and the normal waistband 10 It includes a fastening means and, by forming a coagulation band and leg elastic body to prepare a disposable diaper.

Experimental Example 1

Samming of disposable diapers manufactured by the above examples and comparative examples was evaluated using a baby model manikin. The gland development was evaluated as urine at 7 ml / sec using a TEFO tester (MTS) as a baby model manikin, and the amount absorbed at the time of gland development was measured. Table 1 shows.

Experimental Example 2

In order to conduct consumer verification of the occurrence of leakage of disposable diapers manufactured by the above embodiments and comparative examples, a consumer review was conducted on 100 people weighing 6 to 15 kg in weight to obtain disposable diapers from baby mothers. During wearing, the difference between the products for the occurrence of the spring was determined by the following criteria, and the results are also shown in Table 1 below.

Criteria

+; No glands during use of disposable diapers

±; Small amount of glands during use of disposable diapers

-; Spring outbreaks during disposable diaper use

Very good; + Is more than 90%

Great ; When + is 70 to 90%

usually ; If + is less than 70%

division Absorption amount until gush (g) Consumer Survey Judgment Result (N = 10) Lying sideways Prone + ± - Judgment Example 1 180 223 78 12 10 usually Example 2 189 224 81 9 10 Great Example 3 194 221 89 9 2 Great Example 4 178 219 81 12 7 Great Example 5 187 225 87 11 2 Great Example 6 197 229 91 7 2 Very good Example 7 178 226 83 9 8 Great Example 8 184 227 85 10 5 Great Example 9 197 228 91 7 2 Very good Example 10 198 223 88 9 3 Great Example 11 214 225 90 6 4 Very good Example 12 220 235 92 7 One Very good Comparative Example 1 145 190 55 31 14 usually Comparative Example 2 148 195 58 30 12 usually

As can be seen in Table 1, in the products of the embodiments according to the present invention and the products of the comparative examples, the leakage of the product of the embodiments in the prone position as well as lying sideways compared to the products of the comparative examples It can be seen that it can significantly reduce the, and the satisfaction was very high in the quality evaluation according to the consumer's use.

Therefore, according to the present invention, the formation of the stiffening bands in double provides an effect of significantly reducing the occurrence of leakage in the prone position as well as in the prone position.

Although the present invention has been described in detail only with respect to the described embodiments, it will be apparent to those skilled in the art that various modifications and variations are possible within the technical scope of the present invention, and such modifications and modifications are within the scope of the appended claims.

Claims (8)

delete delete delete delete delete A liquid permeable top sheet, a liquid impermeable back sheet, and an absorbent body and a fastening means mounted between the top sheet and the back sheet, each having at least two solidifying bands on the left and right sides of the crotch portion between the outer side and the side edges of the absorber. In the formed disposable absorbent product, The corresponding bands, An inner coagulation band consisting of an inner coagulation band flap adhesion portion, a coagulation band end portion, a coagulation band end attachment portion, a coagulation band elastic body, an inner coagulation band flap, and a coagulation band side flap; An outer coagulation band consisting of an outer coagulation band flap adhesion portion, a coagulation band end portion, a coagulation band end attachment portion, a coagulation band elastic body, an outer coagulation band flap, and a coagulation band side flap; The corresponding band elastic body of each of the corresponding bands has an elastic modulus of 100 to 300%, the height of the inner curing band flap is 10 to 30mm, the height of the outer curing band flap is 10 to 20mm Disposable absorbent product with a band. The method of claim 6, The inner side of the corresponding bands of the corresponding bands to form a coagulation band end adhesive portion, the outer coagulation band is a disposable absorbent product having a double coagulation band characterized in that the non-bonded state is not formed. delete