KR20080029156A - Disposable diaper using natural material - Google Patents

Abstract

A disposable absorbent product using natural cotton is provided to make a natural cotton material come into contact with a user's skin to improve the sense of touch and to protect the user's skin. The surface of a disposable absorbent product using natural cotton that comes into contact with user's skin is made of a natural cotton material. The disposable absorbent product using natural cotton includes a liquid permeable upper sheet(10), an absorbent body(20), a liquid non-permeable rear sheet(30), a non-liquid permeable excrement band(40) and a waist band. The absorbent body absorbs and retains secretions that pass through the upper sheet. The rear sheet prevents the secretions from leaking outside from the absorbent body. The waist band makes a diaper adhered to a human body elastically.

Description

Disposable absorbers using natural cotton {Disposable diaper using natural material}

1 is a plan view of a disposable diaper according to an embodiment of the present invention.

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

3 is a perspective configuration diagram of the disposable diaper shown in FIG. 1.

Explanation of symbols on the main parts of the drawings

10: upper sheet 20: absorber

24 absorbing diffusion layer 25 absorbing core

26: tissue 30: back sheet

32: plastic film 34: nonwoven fabric

40: gang band 41: gang band flap

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

44: coagulation band terminal adhesive portion 45: coagulation band elastic body

46: Coagulation band inner flap 47: Coagulation band outer flap

50: waist band 60: fastening means

70: natural pure cotton material layer 100: disposable diapers

The present invention relates to a disposable absorbent product, and more particularly, by contacting the natural cotton material of the wearer's skin, to maintain the skin moisture balance before urination, to improve the skin protection effect, and to the super absorbency of natural cotton after urination The present invention relates to a disposable absorbent product which can sufficiently protect the wearer's skin from moisture and heat even when the discharge is quickly discharged and not frequently changed.

Humans excrete secretions such as blood, urine, feces, and menstrual blood by various physiological actions. Disposable absorbent products absorb these secretions and provide a hygienic and convenient environment. In other words, the disposable absorbent product absorbs secretions (for example, urine, feces, menstrual discharge and vaginal discharge) excreted by various physiological actions of the wearer, and is typically a disposable diaper used by an infant or incontinence. (Disposable Diaper), Women's Sanitary Napkin, Panty Liner, etc.

In general, such disposable absorbent products include a liquid permeable topsheet in contact with the skin, an absorbent that absorbs and retains secretions that pass through the topsheet, and a liquid impermeable back that prevents secretions from leaking out of the absorber to the outside. It basically comprises a seat and has fastening means to be fixed to the body.

Disposable absorbent products have evolved into ultra-thin forms that increase the absorbent capacity and make the thickness thinner in order to quickly absorb secretions excreted by the wearer and provide comfort in use. Accordingly, it has recently become possible to wear disposable absorbent articles for a relatively long time.

However, when the disposable absorbent product is worn for a long time, the skin becomes soaked and breathable due to the moisture and heat caused by the secretion, and the adverse skin side effects such as rash on the skin of newborns and infants, especially sensitive to irritation, remain. These skin side effects are greatly affected by the chemicals contained in the material. In particular, the top sheet is in contact with the wearer's skin in the largest area. When the contact surface with the skin is made of synthetic material, it is necessary to convert the hydrophobic properties of the synthetic material into hydrophilic properties. Is composed of a surfactant. Surfactants have a bad effect on prolonged contact with skin.

The present invention is to solve the problems with the conventional disposable absorbent products as described above, by contacting the natural pure cotton material to the skin, to improve the feel and to provide a disposable absorbent product having an excellent skin protection effect There is this.

In order to achieve the above object, the present invention is a disposable absorbent product,

It provides a disposable absorbent article consisting of a natural pure cotton material in cotton contact with the wearer's skin.

The disposable absorbent article of the present invention is preferably a diaper which has a liquid permeable top sheet, an absorbent which absorbs and retains secretions that have passed through the upper sheet, and a liquid impermeable to prevent leakage of secretions from the absorbent to the outside. And a back sheet of the back, a liquid impermeable coagulation band for preventing secretion from leaking into the crotch portion, and a waist band for elastically adhering the diaper to the body at the waist portion. In this case, the diaper has a structure in which the top sheet is made of a natural pure cotton material, or a natural pure cotton material layer is bonded to an upper surface of the top sheet. In addition, the diaper may have a structure in which a natural pure cotton material layer is bonded to the surface of the curd band or waist band.

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

The disposable absorbent article of the present invention is included in the present invention as long as the surface in contact with the skin of the wearer is made of a natural pure cotton material. For example, the disposable absorbent article of the present invention is constructed in a conventional structure, wherein the surface or the entire material of the component in contact with the skin of the wearer is made of natural pure cotton material. In addition, the disposable absorbent article is of a conventional structure, but has a structure in which a separate natural cotton material layer (70, see Figs. 1 and 2) is bonded. At this time, the natural cotton material layer 70 is located in the direction in contact with the skin. Disposable absorbent products according to the present invention include disposable diapers used by infants or incontinence, and women's sanitary napkins and panty liners.

1 to 3 illustrate a disposable diaper worn by an infant among disposable absorbent products. The disposable diaper described below is a preferred embodiment of the present invention. 1 is a plan view of the disposable diaper 100, Figure 2 is a cross-sectional view of the line I-I of FIG. 3 is a perspective configuration diagram of the disposable diaper shown in FIG. 1.

Disposable diaper 100 shown in the figure has a structure in which the top, bottom, left and right symmetry in the form of an hourglass. The diaper 100 does not necessarily have to be symmetrical in up, down, left and right, but preferably has a symmetrical structure as shown. For convenience of description, the part located at the front part of the wearer is located at the front waist part (A), the crotch part is located at the front of the wearer, and the part located at the back part is the crotch part (B), and the part located at the back part of the wearer is located at the rear waist part ( C).

The term "bonding" used in the present invention is a solid adhesive, a hot melt adhesive, a sealing (sewing), or a combination of components constituting the diaper 100, such as heat or ultrasonic wave, or the intermittent intermittent It is combined with.

The diaper 100 includes a top sheet 10 which contacts the skin of the wearer with the largest area among the constituent elements, a back sheet 30 that forms an outer surface when worn, and the top sheet 10 and the back sheet. Absorber 20 located between the 30, the corresponding band 40, a predetermined width and a long coupling in the longitudinal direction (lengthwise in Figure 1), the waist band 50 formed in the rear waist portion (C), And it has a fastening means 60 for fixing to the body.

The topsheet 10 is liquid permeable to quickly pass liquid secretions toward the absorbent 20, which is bonded to the absorber 20 and the backsheet 30, with the central region bonded to the absorber 20. The magnetic field region is bonded to the back sheet 30.

The absorber 20 is to absorb and retain the secretion passed through the top sheet 10, which is located between the top sheet 10 and the back sheet (30). The size and shape (eg, rectangular, hourglass, T-shaped, asymmetrical, etc.) of the absorbent body 20 may be variously configured. The absorber 20 includes at least an absorbent core 25 made of fluff pulp and a super absorbent polymer. The fluffy pulp is a pulverized fibrous web or wood pulp, and the superabsorbent polymer is an acrylic acid polymer crosslinked product, a vinyl alcohol-acrylate copolymer crosslinked product, maleic anhydride graft polyvinyl alcohol crosslinked product, acrylic Cross-linking products of the acid-methacrylate copolymer crosslinked products, cross-linking products of the methyl acrylate-vinyl acetate copolymers, cross-linking products of the starch-acrylate graft copolymers, and starch-acrylonitrile graft copolymers. Particles alone or in combination of two or more selected from water, a carboxymethyl cellulose crosslinked product, an isobutylene-maleic anhydride copolymer crosslinked product, a methylene oxide polymer crosslinked product and the like can be usefully used. At this time, cotton pulp is 10 to 80% by weight, preferably 20 to 50% by weight of the total weight of the absorbent core 25, the superabsorbent resin is 20 to 90% by weight, preferably 50 of the total weight of the absorbent core 25 ~ 80% by weight is good.

The absorber 20 preferably absorbs the secretion that has passed through the upper sheet 10 at a high speed to disperse the secretion in the entire area of the absorbent core 25 and prevents the absorbent core 25 from agglomerating. Has an absorption diffusion layer 24. The absorption diffusion layer 24 may be usefully used a non-absorbent fabric of high absorption.

In addition, the absorbent body 20 may further include a tissue 26 that improves the tensile strength of the absorbent core 25 and prevents the absorbent core 25 from being lumped or rounded. At this time, the absorption diffusion layer 24 is located between the upper sheet 10 and the absorbent core 25, the tissue 26 is bonded to the upper and / or lower surface of the absorbent core 25 or the absorbent core 25 It may be bonded to the absorbent core 25 in the form of wrapping. In FIG. 2, the absorber 20 is composed of an absorption diffusion layer 24, an absorbent core 25, and a tissue 26, and the tissue 26 is bonded to a lower surface of the absorbent core 25 in a single layer. .

The backsheet 30 prevents leakage of secretion to the outside to prevent contamination of the wearer's clothing or the surrounding environment, which has at least a liquid impermeable plastic film 32. The plastic film 32 is preferably liquid impermeable and gas permeable. In addition, the back sheet 30 is preferably configured to further include a nonwoven fabric 34 to impart a pure cotton feel (softness) as shown in FIG. At this time, the plastic film 32 is bonded to the absorber 20, the nonwoven fabric 34 is bonded to the plastic film 32, the nonwoven fabric 34 forms the outermost surface of the diaper 100. The plastic film 32 and the nonwoven fabric 34 may have the same size as the width and length of the diaper 100, but preferably the plastic film 32 has the same size as the width of the absorbent body 20 in the transverse width. , The nonwoven fabric 34 has the same size as the overall transverse width of the diaper 100.

The coagulation band 40 is to prevent the secretion released from the absorber 20 to leak into the crotch portion (left and right when viewed in Figure 2), which is formed on the left and right sides of the absorber 20 and is liquid impermeable. Such a solid band 40 has a solid band elastic body 45, at least in the crotch portion (B) to stand by the elastic body 45 to form a pocket (pocket) in which secretion is stored. Accordingly, the liquid secretion may be temporarily stored in a pocket without being leaked to the left and right sides of the diaper 100 by being trapped by the coagulant 40 and may be absorbed into the absorber 20.

The coagulation band 40 is preferably composed of an inner coagulation band 40A and an outer coagulation band 40B, as shown in FIG. As such, when the solidification band 40 is composed of the inner solidification band 40A and the outer solidification band 40B, it is possible to more firmly prevent leakage of secretion. Referring to FIG. 2, one flap 41 is folded between the inner corresponding band 40A and the outer corresponding band 40B.

As the flap 41 constituting the solid band 40, a liquid impermeable film such as a hydrophobic nonwoven fabric or a waterproof nonwoven fabric is used. When the hydrophobic nonwoven fabric is used as the flap 41, the curing band 40 may be composed of two-ply flaps 41 to enhance the hydrophobic effect, wherein the two-ply flaps 41 are solid. It can be bonded with an adhesive. In addition, the flap 41 preferably has a weight per unit area of 13 g / m 2 to 28 g / m 2.

On the other hand, the rotatable band 40 may be divided into a rotatable band flap adhesive portion 42, a rotatable band end portion 43, the rotatable band end adhesive portion 44, and the inner flap 46 and the outer flap 47.

The corresponding band flap adhesive part 42 is a point at which the corresponding band flaps 41 are bonded to each other to provide a space into which the corresponding band elastic body 45 may be inserted. One or more corresponding band elastic bodies 45 are inserted and coupled into the space provided as described above, that is, the corresponding band flap 41 is folded between the corresponding band flap adhesive portion 42 and the corresponding band end portion 43.

The solid band elastic body 45 is for making the solid band end portion 43 adhere to the skin well, which is coupled to at least the crotch portion B of the solid band 40A, 40B. An elastic thread is useful as the solid band elastic body 45, and the elastic thread is made of, for example, polyurethane spandex or natural rubber. At this time, the elastic modulus of the curd band elastic member 45 may have a range of 150 to 230%, preferably 180 to 200%. Here, for example, '200% modulus of elasticity' means that the length of the elastic body 45 in the initial contracted state is 100, the maximum length of which is 200.

The rostrum band distal end 43 is a portion standing up by the roag band elastic body 45 to be in close contact with the skin. And the coagulation band end adhesive part 44 is the point where the longitudinal end part of the coagulation band flap 41 is joined to the front waist part A and the rear waist part C of the diaper 100 (refer FIG. 1).

In addition, the corresponding band inner flap 46 is a corresponding band flap 41 indicating a portion extending from the inner corresponding band 40A and the outer corresponding band 40B, and the corresponding band outer flap 47 is an outer corresponding band ( A corresponding band flap 41, which points at 40B), extends to the transverse edge. The inner flap 46 and the outer flap 47 are bonded to the top sheet 10 or the back sheet 30 so that the coagulation band 40 is fixed to the diaper 100. For example, when the top sheet 10 extends to the portion having the inner and outer flaps 46 and 47, the upper sheet 10 is bonded and fixed to the upper sheet 10, and the upper sheet 10 is attached to the corresponding band flap adhesive portion 42. ) Is extended to only the vicinity, and is bonded and fixed to the back sheet 30. The width (lateral length) of the inner and outer flaps 46 and 47 can be set to 15 to 50 mm, but preferably 15 to 35 mm.

The waistband 50 is located at the rear waist portion C of the diaper 100, which elastically closes the waist portion of the diaper 100. Waist band 50 may be composed of an elastic body coupled to the elastic band or inelastic band, for example, polyurethane foam (polyurethane foam) sheet, polyurethane film (polyurethane film), polyurethane nonwoven fabric, or natural Fiber (or synthetic fiber) It can be used that the elastic yarn is bonded to the nonwoven fabric. Polyurethane spandex or natural rubber may be usefully used for the elastic chamber. The waistband 50 may be formed over the entire width (lateral direction) of the diaper 100, or may be formed to be partially short.

In addition, the diaper 100 has a fastening means 60 to be fixed when worn on the body. The fastening means 60 is useful for mechanical fastening means such as velcro, re-adhesive tape, hook & loop system. The fastening means 60 is, for example, a target portion 62 which is bonded to the back sheet 30 of the front waist portion A and provides an adhesive region of the adhesive portion 64, and the rear waist portion C. And a fixing part 63 fixed to the back sheet 30 of the < RTI ID = 0.0 >) < / RTI > and an adhesive part 64 formed integrally with the fixing part 63 and coated with an adhesive material to enable re-adhesion with the target part 62. Can be.

In the diaper 100 configured as described above, part or all of the cotton in contact with the skin is made of a natural pure cotton material according to the present invention.

In the present invention, the "natural cotton material" is pure cotton as a staple fiber attached to cotton seed; Natural silk as a long fiber of 900-1400 mm extracted from the cocoon; Wool as animal fibers taken from the sheep; And mixtures thereof. At this time, the pure cotton obtained from cotton seed belongs to the seed hair fiber of natural vegetable fiber and consists of almost pure fiber, absorbing and absorbing well, absorbing sweat well and do not generate static electricity, so it is comfortable to wear, easy to dye, and warm. This has a good advantage. Natural silk from silkworm cocoons is elegant in luster, soft to the touch, vivid in color, excellent in heat retention, breathability and drought, hygienic, and excellent in strength and elongation. In addition, the wool obtained from the sheep (Sheep) is the best elasticity among the natural fibers, excellent hygroscopicity, excellent heat retention and condensation.

Natural cotton material with the above characteristics provides a soft touch in contact with the skin, and maintains skin moisture balance before urination, improving skin protection effect. In addition, after urination, the secretion is quickly discharged by superabsorption, which prevents skin side effects by sufficiently protecting the wearer's skin from moisture and heat even when it is not frequently changed.

The top sheet 10 may contact the diaper 100 with the largest area of the wearer's skin among the components, wherein the top sheet 10 is a natural pure cotton material such as all or part of the material constituting it It consists of.

In addition, the top sheet 10 is composed of a woven fabric, a nonwoven fabric of a synthetic fiber or a thermoplastic film formed with fine pores, and a structure in which a natural pure cotton material layer 70 is bonded to at least one surface (direction of contact with the skin). Can have In addition, the asbestos material layer 70 may be bonded to at least one surface (direction of contact with the skin) of the corresponding band 40 or the waist band 50.

The natural pure cotton material layer 70 is a natural pure cotton material processed into a sheet, which includes a woven fabric and a nonwoven fabric. In addition, the natural pure cotton material layer 70 is composed of one sheet of natural pure cotton material or includes two or more sheets bonded in a multilayer.

In addition, the natural cotton material layer 70 may include an antimicrobial inorganic material or a natural plant antimicrobial material to have an antimicrobial / sterilization effect. The antimicrobial inorganic material may be, for example, one or more selected from ocher, jade, zeolite, and zodiacal jijangsu, and the natural plant antimicrobial may be one or more extracts selected from extracts such as mugwort, green tea, pomegranate, soybeans and estuary.

On the other hand, when the natural pure cotton material layer 70 is configured using only natural pure cotton material, the natural pure cotton material layer 70 may be difficult to form a rough surface, if the weight per unit area less than 40g / ㎡ If it exceeds 200g / m 2, the rapid absorption of secretion is difficult and re-wet phenomenon of redistributing absorbed moisture may occur, which may adversely affect the wearer's skin. Accordingly, the natural pure cotton material layer 70 preferably has a weight per unit area of 40 to 200 g / m 2, more preferably 100 to 200 g / m 2, which may correspond to thickness. In addition, even when the upper sheet 10 is made of a natural pure cotton material, it is preferable that the weight per unit area is 40 to 200 g / m 2, and more preferably 60 to 120 g / m 2, for the same reason as above.

As described above, the present invention has a natural cotton material in contact with the skin to provide a soft touch and maintain the skin moisture balance to improve the skin protection effect. In addition, due to the high absorbency of the natural pure cotton material, the ability to transfer to the absorber 20 is improved, so that even when it is not frequently changed, the skin of the wearer is sufficiently protected from moisture and heat to prevent skin side effects such as skin swelling.

Claims (12)

In disposable absorbent products, Disposable absorbent product, characterized in that the cotton in contact with the skin of the wearer made of a natural pure cotton material. The method of claim 1, The disposable absorbent article includes a liquid permeable top sheet, an absorbent for absorbing and retaining secretion that has passed through the upper sheet, a liquid impermeable backsheet for preventing secretion from leaking out of the absorber, and a crotch portion. Disposable absorbent product, characterized in that the diaper including a liquid impermeable coagulation band to prevent secretion leaking, and a waist band to elastically adhere the diaper to the body at the waist portion. The method of claim 2, The top sheet is a disposable absorbent product, characterized in that consisting of natural cotton. The method of claim 2, The top sheet is a disposable absorbent product, characterized in that the natural cotton material layer is bonded to the surface in contact with the skin. The method of claim 2, The coagulation band is a disposable absorbent product, characterized in that the natural cotton material layer is bonded to the surface in contact with the skin. The method of claim 2, The waistband is a disposable absorbent product, characterized in that the natural cotton material layer is bonded to the surface in contact with the skin. The method of claim 3, The top sheet is a disposable absorbent product, characterized in that the weight per unit area of 40 ~ 200g / ㎡. The method according to any one of claims 4 to 5, The natural pure cotton material layer is a disposable absorbent product, characterized in that the weight per unit area of 40 ~ 200g / ㎡. The method according to any one of claims 4 to 5, The natural cotton material layer is a disposable absorbent product, characterized in that it contains an antibacterial inorganic or natural plant antimicrobial material. The method of claim 9, The antimicrobial mineral is a disposable absorbent product, characterized in that at least one selected from ocher, jade, zeolite and ecliptic jijangsu. The method of claim 9, The natural plant antimicrobial material is a disposable absorbent product, characterized in that at least one extract selected from mugwort, green tea, soybeans and eochocho. The method of claim 1, The natural pure cotton material is pure cotton obtained from cotton seed; Natural silk from silkworm cocoons; Wool obtained from the sheep; Or a mixture thereof.

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