KR20130099630A - Disposable absorbent article - Google Patents

Abstract

PURPOSE: A disposable absorbent article is provided to prevent side effects in skin such as itchiness, erythema, or festering even if a user wears the disposable absorbent article for a long time. CONSTITUTION: A disposable absorbent article comprises a liquid permeable surface sheet (10); an absorber (20) which absorbs and holds excretion being positioned under the liquid permeable surface sheet; and a liquid impermeable rear sheet which is positioned under the absorber. The surface sheet includes a mixed extract, a glycerin, and a liquid permeable felt. The mixed extract contains a first extract with more than one kind selected from an evening primrose oil, a macadamia integrifolia seed oil, a grape seed oil, a camellia sinensis seed oil, and a lavender oil and a second extract with three kinds selected from a group composed of hyaluronic acid, phytoncide, a portulaca oleracea extract, acacia collagen, a chamomile extract, a gold extract, a houttuynia cordata extract, an aloe vera leaf extract, a burdock extract, and an amaranthus caudatus extract. The liquid permeable felt is surface-treated with a skin protective composition with a solvent.

Description

[0001] DISPOSABLE ABSORBENT ARTICLE [0002]

The present invention relates to a disposable absorbent article which can reduce the incidence of skin side effects such as skin itching, skin erythema, skin rashes and the like even if the wearer wears it for a long time.

Disposable absorbent articles include articles absorbing body fluids excreted by various physiological functions such as diapers, panties for training, adult incontinence products, absorbent underwear, feminine hygiene products, and feeding pads.

Generally, the disposable absorbent article includes a liquid-pervious topsheet directly contacting the skin of the wearer, an absorbent core absorbing and retaining excretion through the topsheet, a liquid-impervious backsheet And a wearing means is formed so as to be selectively worn on the body.

Such disposable absorbent articles have been developed in an ultra-thin form that increases the absorbent capacity of the absorbent core and makes the thickness thinner to quickly absorb the excretion excreted by the wearer and provide a comfortable fit for the wearer. In particular, the topsheet has been developed in such a form that the tactile sensation is soft and the absorbed excreta can be delivered to the absorbent core more quickly. Accordingly, in recent years, the absorbing and storing function of the disposable absorbent article has been improved, and the wearer has been able to wear the disposable absorbent article for a relatively long time.

However, when the disposable absorbent article is worn for a long time, problems of skin side effects such as skin itching, skin erythema and skin rash are occurring. Skin side effects are caused by excessive moisture generation and temperature rise inside the disposable absorbent article due to feces, or by physical irritation due to ammonia, skin fungus, and disposable absorbent article and skin friction due to feces. Thus, wearers often apply lotions or creams containing skin protective ingredients to the skin to prevent skin side effects from occurring. However, it is cumbersome to apply lotion or cream every time, especially infants and the elderly who can not apply lotion or cream directly to themselves have a problem that needs continued help from a guardian.

It is an object of the present invention to provide a disposable absorbent article which can prevent skin side effects such as skin itching, skin erythema and skin rashes when the wearer is worn for a long time.

The present invention relates to a liquid-permeable top sheet; A disposable absorbent article comprising an absorbent body positioned below the topsheet to absorb and retain excretion and a liquid-impervious backsheet positioned under the absorbent body,

The topsheet comprises (a) evening primrose oil, macadamia integrifolia seed oil, grape seed oil, camellia sinensis seed oil, and lavender oil. And at least one first extract selected from the group consisting of hyaluronic acid, phytoncide, portulaca oleracea, acacia collagen, chamomile extract, golden extract, aloe vera extract, aloe vera extract, (B) a liquid-permeable nonwoven fabric surface-treated with a skin protecting composition comprising (c) a solvent, and (c) a mixed extract comprising at least three second extracts selected from the group consisting of leaf extract, burdock extract, The disposable absorbent article comprising:

The present invention also relates to a liquid-permeable top sheet; An absorber positioned below the topsheet to absorb and retain excretion; And a liquid-impervious back sheet positioned under the absorbent body,

The absorber comprising an absorbent core; And a core warp sheet laminated to the top, bottom or both of the absorbent cores, or wrapping the absorbent cores,

Wherein the core wrap sheet comprises a nonwoven fabric surface-treated with a deodorant composition comprising salicylic acid, an alcohol and a polyether-type polyol.

The present invention also relates to a liquid-permeable top sheet; An absorber positioned below the topsheet to absorb and retain excretion; And a liquid-impervious back sheet positioned under the absorbent body,

The back sheet

A breathable waterproof film positioned below the absorber to prevent excretion held by the absorber from leaking to the outside; And

And a liquid impervious nonwoven fabric sheet disposed under the breathable waterproof film and surface-treated with a silk powder containing composition.

The present invention also provides a liquid-permeable topsheet; An absorber positioned below the topsheet to absorb and retain excretion; And a liquid impervious back sheet positioned on the back side of the absorbent body,

Wherein the liquid impervious backsheet comprises a breathable waterproof film,

The breathable waterproof film is formed of a waterproof film-forming composition containing calcium carbonate and a polymer resin. The content of calcium carbonate is adjusted to a range of 40 to 45% by weight based on the total weight of the waterproof film-forming composition, Is formed in a range of 2.5 to 3.5 times in the mechanical direction.

The disposable absorbent article of the present invention comprises (a) at least one composition selected from the group consisting of evening primrose oil, macadamia integrifolia seed oil, grape seed oil, camellia sinensis seed oil, and lavender oil lavender oil, and at least one first extract selected from the group consisting of hyaluronic acid, phytoncide, portulaca oleracea, acacia collagen, chamomile extract, golden extract, , A mixed extract comprising at least three kinds of second extracts selected from the group consisting of aloe vera leaf extract, burdock extract, and rowan mandarin extract, (b) liquid permeable surface-treated with a skin protecting composition containing glycerin and (c) By including the nonwoven fabric as a liquid-pervious topsheet in contact with the skin of the wearer, the wearer can wear the absorbent article, Is transferred to the skin of the user because the skin to form a protective film, it is possible to prevent side effects such as skin by the long time wearing a disposable absorbent article, skin itching, skin rash, skin sores to occur.

In addition, the disposable absorbent article of the present invention includes a core wrap sheet made of a non-woven fabric surface-treated with a deodorant composition containing salicylic acid, alcohol and polyether-type polyol, whereby ammonia is neutralized to remove odor, Skin side effects can be prevented from occurring.

In addition, since the disposable absorbent article of the present invention includes the liquid impervious nonwoven fabric sheet surface-treated with the silk powder containing composition, the physical irritation due to the friction between the disposable absorbent article and the skin is alleviated to prevent skin side effects from occurring .

In addition, the disposable absorbent article of the present invention is formed of a waterproof film-forming composition comprising calcium carbonate and a polymer resin, wherein the content of calcium carbonate is adjusted in the range of 40 to 45% by weight based on the total weight of the waterproof film- And the air permeable waterproof film formed by adjusting the stretching ratio of the film in the range of 2.5 to 3.5 times in the mechanical direction so that the excrement held by the absorbent core through the pores formed by the calcium carbonate does not leak to the outside, Since the water vapor can smoothly communicate with the back sheet, skin side effects can be prevented from occurring due to moist air.

1 is a plan view showing a disposable diaper as an example of the present invention.
Fig. 2 is a cross-sectional view of the diaper of Fig. 1 cut along the line II. Fig.
Fig. 3 is a graph showing the results of the evaluation of the hydrophilic cross-linked nonwoven fabric (test piece 3) sprayed with the deodorant composition prepared in Preparation Example 2-1, the hydrophilic cross-linked nonwoven fabric (control 1) Impermeable nonwoven fabric (nonwoven fabric used in Preparation Example 1) (Control 2) in which the deodorant composition prepared in Example 2-1 was sprayed and a liquid impervious nonwoven fabric (Comparative Example 2) in which the deodorant composition prepared in Preparation Example 2-1 was sprayed And the number of bacteria after the passage of 2 hours after inoculating Staphylococcus aureus into each of the nonwoven fabrics (Control 3) prepared in Preparation Example 3-1.
Fig. 4 is a graph showing the results of the evaluation of the hydrophilic cross-linked nonwoven fabric (test piece 4), the hydrophilic cross-linked nonwoven fabric (control piece 4) prepared in Preparative Example 2-1, A nonwoven fabric (nonwoven fabric used in Preparation Example 1) (control 5) in which the deodorant composition prepared in Example 2-1 was sprayed, and a liquid impervious nonwoven fabric (hereinafter referred to as " (Non-woven fabric prepared in Preparation Example 3-1) (Control 6), and the number of bacteria after 2 hours had elapsed.

Hereinafter, the present invention will be described.

In the present invention, the term " disposable absorbent article "refers to a product that absorbs body fluids discharged by various physiological functions, and which is not washed or restored or reused after use. Examples include diapers, pant training pants, adult incontinence products, absorbent underwear, feminine hygiene products and feeding pads.

As shown in FIG. 1, the disposable diaper 100 according to the present invention is an open-type diaper having an hourglass shape. The shape of the diaper is not necessarily symmetrical in the vertical and horizontal directions, Structure. The disposable diaper 100 is divided into a front portion A which abuts the abdomen of the wearer, a crotch portion B which mainly absorbs excretion located in the crotch portion, and a rear portion C abutting against the hips and / or the like .

2, the disposable diaper 100 includes a liquid-pervious topsheet 10 in contact with the wearer's skin; An absorbent body (20) located below the topsheet to absorb and retain excretion; And a liquid-impervious backsheet 30 positioned below the absorbent body 20 to prevent excretion held by the absorbent body from leaking to the outside.

According to a first embodiment of the present invention, a disposable diaper 100 comprises a liquid-permeable topsheet 10 in contact with the wearer's skin; And an absorber (2) located below the topsheet to absorb and retain excretion and a liquid-impermeable backsheet (3) located under the absorber,

The topsheet 3 comprises a mixture of (a) evening primrose oil, macadamia integrifolia seed oil, grape seed oil, camellia sinensis seed oil, and lavender oil lavender oil, and at least one first extract selected from the group consisting of hyaluronic acid, phytoncide, portulaca oleracea, acacia collagen, chamomile extract, golden extract, , A mixed extract comprising at least three kinds of second extracts selected from the group consisting of aloe vera leaf extract, burdock extract, and rowan mandarin extract, (b) liquid permeable surface-treated with a skin protecting composition containing glycerin and (c) Nonwoven fabric.

According to a second embodiment of the present invention, a disposable diaper 100 includes a liquid-pervious topsheet 10 in contact with the wearer's skin; An absorbent body (20) located below the topsheet to absorb and retain excretion; And a liquid-impervious backsheet (30) positioned below the absorbent body,

The absorber (20) comprises an absorbent core (21); And a core warp sheet (22) laminated or wrapped around the absorbent core (21) at the top, bottom or both of the absorbent core (21)

The core wrap sheet 22 comprises a nonwoven fabric surface-treated with a deodorant composition comprising salicylic acid, an alcohol and a polyether-type polyol.

Further, according to a third aspect of the present invention, a disposable diaper 100 includes a liquid-pervious topsheet 10 in contact with the wearer's skin; An absorbent body (20) located below the topsheet to absorb and retain excretion; And a liquid-impervious backsheet (30) positioned below the absorbent body,

The back sheet (30) comprises a breathable waterproof film (31) positioned below the absorbent body and preventing excretion held by the absorbent body from leaking to the outside; And a liquid impervious nonwoven fabric sheet (32) located below the breathable waterproof film and surface treated with a silk powder containing composition.

Further, according to a fourth embodiment of the present invention, a disposable diaper 100 includes a liquid-permeable topsheet 10 in contact with the wearer's skin; An absorbent body (20) located below the topsheet to absorb and retain excretion; And a liquid impervious backsheet (30) located on the back of the absorbent body,

The breathable waterproof film is formed of a waterproof film-forming composition including calcium carbonate and a polymer resin, and the content of the calcium carbonate is in the range of , And the stretching ratio of the film is adjusted to be in the range of 2.5 to 3.5 times in the mechanical direction.

The disposable diaper 100 is optionally disposed between the topsheet 10 and the absorbent body 20 to absorb the absorbed body fluid through the topsheet 10 at a high speed to the absorbent body 20, (40).

Optionally, the disposable diaper 100 may further include fastening means 50 located on the front and rear portions A and C so that the diaper can be worn around the wearer's waist when worn And a pair of leakage preventing cuffs 60 positioned at the respective edges of the absorber 20 to provide a barrier against the flow of excretion to prevent excretion from leaking to the outside.

Hereinafter, each configuration of the disposable diaper according to the present invention will be described with reference to Figs. 1 and 2. Fig.

<Liquid-permeable top sheet>

In the present invention, the liquid-pervious topsheet 10 is a sheet including a liquid-permeable nonwoven fabric which rapidly passes through the excretion and protects the user's skin by preventing the excretion retained by the absorber from flowing backward. The topsheet 10 may be a single layer or a multi-layer sheet.

The liquid pervious nonwoven fabric has a smooth surface texture. The topsheet made of such a liquid-permeable nonwoven fabric is less irritating to the user's skin even though the absorbent article directly touches the skin of the wearer, thus causing less trouble to the user's skin. Further, since the liquid-permeable nonwoven fabric itself can easily absorb the liquid, even if body fluids such as urine or sweat are discharged from the user, the surface sheet immediately absorbs the liquid, and the surface sheet does not stick well to the skin. The attachment of the topsheet does not cause discomfort to the user.

However, even if the surface of the topsheet 10 including the liquid-permeable nonwoven fabric has a good surface feel due to the liquid-pervious nonwoven fabric, there has been a problem that side effects of skin due to skin friction and moist air caused by wearing for a long period of time occur. Accordingly, in the present invention, the surface of the liquid-permeable nonwoven fabric is coated with the following skin protection composition. The following skin protection composition can be transferred from the surface of the liquid-permeable nonwoven fabric to the skin of the wearer when the wearer wears the absorbent article, and the skin protection film can be formed on the skin of the wearer even if the absorbent article is worn for a long time. It is possible to prevent skin side effects such as erythema, skin rash and the like from occurring.

Examples of the liquid permeable nonwoven fabric that can be used in the present invention are not particularly limited and include, for example, thermal bonding nonwoven fabrics, spunbond nonwoven fabrics, spun-lace nonwoven fabrics, through-through ventilation -air bonding) nonwoven fabrics, but is not limited thereto. Among these, when the air-bonded nonwoven fabric is used, it is preferable because the wearer's skin friction can be minimized and the water absorption is excellent.

The fibers of the liquid-permeable nonwoven fabric are not particularly limited and include, for example, cotton, rayon, polyester, polyethylene, polypropylene, polyethylene terephthalate and the like. These may be used alone or in combination of two or more thereof.

The thickness (fineness) of the fibers is not particularly limited, but when the thickness of the fibers is in the range of about 1.5 to 6 deniers (d), preferably about 1.5 to 2 deniers (d), When worn, skin irritation can be minimized to minimize the occurrence of skin side effects, while improving the instantaneous absorption function.

Although the length of the fiber is not particularly limited, when the diameter is about 36 to 39 mm, the workability of the carding process can be improved in manufacturing the nonwoven fabric, and the surface uniformity of the nonwoven fabric is improved, .

The basis weight of the nonwoven fabric formed from such fibers is not particularly limited, but when it is about 15 to 30 g / m 2, preferably about 20 to 25 g / m 2, it is possible to smooth the surface feeling while improving the absorption power, The occurrence can be minimized.

In the present invention, the above-described liquid-permeable nonwoven fabric is surface-treated with a skin protecting composition. Thus, the liquid-pervious topsheet 10 of the present invention comprises a liquid-pervious nonwoven fabric; And a skin protective composition layer formed on the surface of the nonwoven fabric.

The skin protection composition comprises (a) evening primrose oil, macadamia integrifolia seed oil, grape seed oil, camellia sinensis seed oil, and lavender oil ); And at least one first extract selected from the group consisting of A group consisting of hyaluronic acid, phytoncide, portulaca oleracea, acacia collagen, chamomile extract, golden extract, horsetail extract, aloe vera leaf extract, burdock extract and lemon extract (B) glycerin, and (c) a solvent.

The skin protection composition comprises a mixed extract obtained by mixing the at least one first extract with at least three second extracts, so that the skin of the wearer is smoother and more comfortable than the first extract or the second extract alone It is possible to delay the evaporation of moisture from the surface of the skin while increasing the moisture holding capacity of the skin while keeping the skin soft and supple, so that the skin soothing effect is excellent, and the anti-inflammation, antibacterial and anti-allergy effects can be exhibited.

Although the content of the mixed extract is not particularly limited, when the skin care composition is about 5 to 15% by weight based on the total weight of the skin protective composition, it is possible to maximize the effect of skin soothing, anti-inflammation, antibacterial and anti- have. At this time, the mixing ratio of the first extract and the second extract is not particularly limited, but it is possible to further increase the moisture holding amount while keeping the skin of the wearer more flexible when the ratio is 35 to 50:50 to 65, The disposable absorbent article can be closely adhered to the body of the wearer and the wearing comfort can be further improved.

The skin protection composition comprises at least one first extract. The first extract is an oil extracted from plant or plant seeds, and one or more of evening primrose oil, macadamia seed oil, grape seed oil, green tea seed oil and lavender oil can be used. Since the first extract is an oily component, the skin can be protected from external stimuli. Further, the evaporation of moisture from the skin surface can be delayed to maintain moisture on the skin, and further, the antibacterial effect can be further enhanced.

The evening primrose oil is an evening primrose oil that contains linoleic acid and gamma linolenic acid, which promote enzymatic activity in the body. These evening primrose oil not only improves blood circulation to improve skin elasticity, but also has anti-inflammatory effects such as dermatitis and eczema.

Macadamia seed oil is an oil extracted from Macadamia seeds, which can make the skin softer and more supple. In addition, macadamia seed oil can enhance the spreadability and permeability of the composition, so that the skin protective composition can be easily transferred from the liquid-permeable topsheet to the skin of the wearer. In addition, the macadamia seed oil can form a moisture barrier on the skin to prevent aging or dryness of the skin.

In addition, grape seed oil is an oil extracted from grape seeds, and has an antioxidant component that is good for the skin. Therefore, the antioxidant effect and the anti-aging effect can be exhibited when it is included.

In addition, green tea seed oil is an oil extracted from the seeds of green tea. Since it has antioxidant ingredients that are good for skin due to anti-inflammation and skin sedative action, it can exert a skin soothing and anti-inflammatory effect.

Lavender oil is an essential oil from a hybrid lavender plant, Labbanula Hybrida. If it is included, it also helps to maintain mental stability as a fragrance, and can exhibit an antibacterial effect.

The skin protection composition comprises at least three second extracts. When three or more kinds of second extracts are included, the skin sedation, purification, anti-inflammation, antibacterial and anti-allergic effects can be further enhanced compared to the case where one extract is contained due to the interaction of the respective extracts.

The above-mentioned hyaluronic acid is a biosynthesized natural substance which exists in a large amount in the skin of an animal or the like and contains a large amount of hydroxyl group (-OH), so it plays a role of a moisturizing function when the absorbent article is worn.

In addition, phytoncide is an antimicrobial substance commonly produced by plants in forests, for example, phytoncide extracted from cottonwood. Phytoncide contains terpenes, phenolic compounds, alkaloids, and the like. These phytoncides generate a faint scent and also have a pharmacological action to disinfect the skin.

The extract of Phellinus linteus (Portulaca oleracea) is not limited to any specific part such as leaf, stem, root, or shoot of Pseudomonas spp., But is extracted from one or more parts or whole, or processed into an extracted solution. These extracts can exert excellent anti-inflammatory effects.

Also, acacia collagen is a plant collagen extracted from acacia roots and flowers. It is a weakly alkaline substance, so there is little irritation to the skin. In addition, acacia collagen exerts a soothing effect and anti-inflammatory effect, and has excellent moisturizing power.

In addition, the chamomile extract is a substance extracted from chamomile and includes pyrazine, terpene, sesquiterpene, sesquiterpene, cardinene, and alcohol components. These chamomile extracts have anti-inflammatory and anti-allergic properties, so they have sedative and anti-inflammatory effects.

In addition, the golden extract (Scutellaria baicalensis Extract) is extracted from the root of gold and can exert anti-inflammatory and antiallergic effects.

Houttuynia Cordata is a perennial herb belonging to Saururus chinensis. Hottuynia Crodata Extract contains methylene-nonyl ketone, decanoyl acetaldehyde, lauroyl aldehyde, caprylic aldehyde, cortalin, quercitrin, Citrine, quercetin, rutin, rainotrine, hiperine, myrcene, geranil, calcium chloride, calcium sulfate and the like. These herbal extracts can exert sterilizing, antibacterial and anti-inflammatory effects.

In addition, Aloe ferox leaf extract has excellent skin moisturizing ability and can exert skin soothing effect.

The burdock extract is extracted from the roots of burdock (Arctium lappa), and can maintain the moisture and elasticity of the skin, thereby exerting a skin soothing effect.

In addition, Amaranthus Caudatus Seed Extract is extracted from the seeds of Rhododendron, and has antioxidant activity.

The extract used in the present invention can be extracted using water, an organic solvent, or a mixed solvent thereof. In the case of extraction using an organic solvent, ethanol, isopropanol, acetone, acetic acid, ethyl acetate, carbon dioxide or an organic solvent which is a mixed solvent thereof can be used. The active ingredient of the present invention is not destroyed or minimized, Can be extracted. In this case, the extraction method used is not particularly limited. For example, it can be extracted using an extraction method such as a cold extraction, an ultrasonic extraction, a reflux cooling extraction, a hot water extraction, etc. Preferably, And the filtrate is concentrated under reduced pressure to obtain the extracts of the present invention.

The form of such an extract is not particularly limited and may be a powder, an extract, an extract, or the like.

The skin protection composition comprises glycerin. Glycerin is a fat-retaining ingredient and has excellent skin moisturizing power, so that moisture can be retained on the skin and the skin soothing effect can be exerted by including it.

The content of such glycerin is not particularly limited, but if it is about 4 to 6% by weight based on the total weight of the skin protection composition, the skin soothing effect can be further enhanced.

The skin protection composition comprises a solvent. Examples of the solvent include, but are not limited to, water. The content of the solvent may be such that the skin protecting composition is adjusted to be 100% by weight.

Such a skin protecting composition may contain a moisturizing agent, an antioxidant, an ultraviolet absorber, a surfactant, a thickener, a thickener, a thickening agent, and the like, which are known in the cosmetics field, in addition to a mixed extract, a glycerin, and a solvent in which at least one kind of the first extract and at least three kinds of second extracts are mixed. , An emulsifying agent, an antioxidant, a skin protecting agent, and the like. At this time, the content of each ingredient can be adjusted within a range known in the cosmetics field.

The viscosity of the skin protective composition is not particularly limited, but when the skin protective composition is applied to the liquid-permeable nonwoven fabric surface at about 100 to 1000 cps, preferably 500 to 800 cps, the workability can be improved, It is possible to easily form a skin protection film by transferring (transferring) the skin protection composition from the absorbent article to the skin of the wearer in a uniform amount at the time of subsequent wearing.

The coating layer may be formed by coating the skin-protecting composition on the surface of the liquid-permeable nonwoven fabric according to various coating methods known in the art, followed by drying.

Non-limiting examples of the coating method is spray coating, gravure coating, flexo printing, slot die coating, curtain coating, dip coating and the like. If a diaper is prepared using a nonwoven fabric coated with a skin protecting composition in advance (Premade method), it is preferable to uniformly coat the skin protecting composition on the surface of the nonwoven fabric through gravure coating or flexographic printing. Meanwhile, slot coating or spray coating is preferably used for coating the skin protection composition on the surface of the nonwoven fabric (in-line method) while manufacturing the diaper using the nonwoven fabric.

The coating amount of the skin protecting composition is not particularly limited, but it is preferably about 3 to 50 gsm, more preferably about 5 to 20 gsm, to improve the coating workability of the skin protecting composition, The skin protective composition can be easily transferred to the skin of the wearer without deteriorating the function of absorbing the excretion of the topsheet, thereby easily forming a skin protective film.

The drying method and temperature are not particularly limited, and it is preferable to use heated air having a temperature of about 50 to 100 캜, because oil components can be left in the composition and only moisture can be easily removed.

<Absorber>

In the present invention, the absorber 20 absorbs and stores (stores) excretion that has passed through the liquid-pervious topsheet 10, and is disposed between the topsheet 10 and the backsheet 30 do. The size and shape of the absorber 20 are not particularly limited, and may be modified to meet absorbent capacity requirements and provide comfort to the wearer. For example, in the case of a disposable diaper for infants, the width of the absorber 2 may be about 7 to 12 cm, and the length may be about 25 to 50 cm. The shape of the absorber 20 is not particularly limited, Hourglass type, T-shaped type, asymmetric type, and the like.

The absorber 20 includes an absorbent core 21, preferably an absorbent core, and a core warp sheet 22. [

The absorbent core 21 functions to absorb the excretion (body fluids) that have passed through the topsheet 10 at a high speed and to hold body fluids to prevent the absorbed body fluids from coming into contact with the skin again. The absorbent core 21 may comprise an absorbent core forming material known in the art and may comprise, for example, a liquid absorbent material.

Specifically, the absorbent core 21 may include a fluff pulp and a super absorbent polymer. Downy pulp is a pulverized fibrous web or sheeted wood pulp. The superabsorbent resin is not particularly limited as long as it is an absorbent resin used for absorbing excretion in the art. For example, the superabsorbent resin is a resin polymerized using polyacrylic acid as the main raw material.

The amount of fluffy pulp may be about 10 to 90% by weight, preferably about 40 to 70% by weight based on the total weight of the absorbent core, and the superabsorbent resin may be about 10 to 90% by weight based on the total weight of the absorbent core. 90 weight percent, preferably about 30 to 60 weight percent.

The absorbent body 20 according to the present invention may include a core wrap sheet 22. The core wrap sheet 22 can support the absorbent core while preventing the excretion absorbed in the absorbent core 21 from leaking out and preventing the absorbent core 21 from being broken or bundled.

The core lap sheet 22 may be laminated to the upper and / or lower portions of the absorbent core 21 described above or may be bonded to the absorbent core 21 in a form of wrapping the absorbent core 21. Preferably, when the core wrap sheet 22 is laminated to both the top and bottom of the absorbent core, or adhered in a wrapping manner around the absorbent core 21, the absorbent core can be supported more firmly, And the effect of the deodorant composition treated on the surface of the core wrap sheet (odor generation and bacterial growth inhibition) can be further enhanced.

The core wrap sheet 22 may be a tissue or a non-woven fabric having a hydrophilic function. The method of imparting a hydrophilic function to the nonwoven fabric is appropriately selected depending on the type of nonwoven fabric. For example, the thermally bonded or vented bonded nonwoven fabric may have a hydrophilic function by being produced using a fiber treated with a surfactant known in the art, and in the case of a spunbonded nonwoven fabric, a raw material (e.g., polypropylene or Polyethylene) can be spun at a high temperature to produce a nonwoven fabric, and then the nonwoven fabric itself can be treated with a surfactant known in the art to have a hydrophilic function.

Examples of the nonwoven fabric may be spunbond nonwoven fabric, thermally bonded nonwoven fabric, melt blown nonwoven fabric, spunbond-meltblown-spunbond nonwoven fabric, and the like, and examples of the nonwoven fabric may include polyester, polyethylene, polypropylene, and the like. There is this. It is preferable that the tissue has been treated with a wet force.

The basis weight of the nonwoven fabric to be used for the core wrap sheet is not particularly limited, but when the core wrap sheet is adjusted to a range of about 10 to 20 g / m 2 depending on the type of the nonwoven fabric, the core wrap sheet firmly supports the absorbent core, . For example, the spunbonded nonwoven fabric or the meltblown nonwoven fabric preferably has a basis weight in the range of about 10 to 15 g / m 2, and the thermally bonded nonwoven fabric preferably has a basis weight of about 18 to 20 g / m 2.

In the present invention, the surface of the core wrap sheet 22 can be treated with a deodorant composition containing salicylic acid, alcohol and polyether-type polyol. By treating the core wrap sheet with the above-described deodorant composition, the present invention can neutralize ammonia generated in the absorbed core 21 to remove or suppress the odor, inhibit bacterial growth, The occurrence of side effects can be prevented more effectively.

The salicylic acid is an acidic material having a pH of 3. By including such a salicylic acid in the deodorant composition, the deodorant composition can neutralize the alkaline substance in contact with the alkaline liquid absorbed in the absorbent core to alleviate the skin irritation. In particular, the odor generation can be eliminated or suppressed by neutralizing the ammonia in the urine And it is also possible to protect the skin from harmful components by inhibiting bacterial proliferation (activation) in urine.

The content of the salicylic acid is not particularly limited, but when it is about 5 to 10% by weight based on the total weight of the deodorant composition, odor generation and bacterial growth can be further suppressed.

In addition, the deodorant composition includes an alcohol. The alcohol can uniformly disperse the components of the deodorant composition which are not mixed with water in water. Examples of such alcohols include, but are not limited to, cetyl alcohol and the like.

The content of the alcohol is not particularly limited, and it may be a residual amount adjusted to be 100% by weight of the deodorant composition, and preferably about 30 to 40% by weight based on the total weight of the deodorant composition.

In addition, the deodorant composition includes a polyether-type polyol. The polyether-type polyol may impart a skin moisturizing function. Examples of such polyether-type polyols include polyethylene glycol, polypropylene glycol, and polytetramethylene glycol.

The content of the polyether-type polyol is not particularly limited, and may be, for example, about 55 to 65% by weight based on the whole of the deodorant composition.

Such a deodorant composition may be in a liquid state or a wax state, and may be coated by heating at a temperature of about 50 to 100 DEG C in a wax state.

The core wrap sheet 22 of the present invention can be manufactured by a variety of manufacturing methods, for example, by coating the above-described deodorant composition on the surface of a nonwoven fabric or a tissue according to various coating methods known in the art, have.

Non-limiting examples of the coating method include a spray coating, a gravure coating, a flexo printing, a doctor blade, a spin coating, a casting, a slot die coating, a curtain coating and a slide coating. Among them, Printing is preferable because the deodorant composition can be uniformly coated on the surface of the nonwoven fabric.

The coating amount of the deodorant composition is not particularly limited. When the coating amount of the deodorant composition is about 5 to 15 g / m &lt; 2 &gt;, the deodorant composition does not deteriorate the liquid absorbing function of the core wrap sheet, The inhibitory effect can be exerted better.

The drying method and temperature are not particularly limited, and when heated air having a temperature of about 50 to 100 DEG C is used, the solvent can be easily removed.

&Lt; Liquid-impermeable back sheet >

In the present invention, the back sheet (30) is a liquid-impermeable sheet which prevents leakage of excretion to the outside and prevents contamination of clothes or surrounding environment of the wearer. This backsheet 30 comprises a breathable waterproof film 31 and optionally may further comprise a liquid impervious nonwoven fabric sheet 22. If the backsheet 30 includes both the breathable waterproof film 31 located below the absorbent body 20 and the liquid impervious nonwoven fabric sheet 22 located below the breathable waterproof film 31, The excrement absorbed in the absorbent core is not leaked to the outside, and air or water vapor can be smoothly communicated through the back sheet, and furthermore, the wearing feeling of the wearer can be improved.

The breathable waterproof film (31) prevents excretion absorbed in the absorbent core from leaking out, and allows air or water vapor to communicate smoothly through the back sheet. This breathable waterproof film 31 is formed of a waterproof film-forming composition comprising a polymer resin and calcium carbonate.

The calcium carbonate (CaCO ₃ ) is a white solid material produced by the reaction of carbonate ions and calcium ions, and can form a plurality of holes in the film while being bonded by a polymer resin. However, in the present invention, the content of the calcium carbonate is adjusted in the range of 40 to 45% by weight based on the total weight of the waterproof film-forming composition in the production of the breathable waterproof film, while the stretching ratio of the film is increased in mechanical direction To adjust the size of the holes formed in the film so that the excrement absorbed in the absorber does not leak to the outside and the air or water vapor is more smoothly communicated through the back sheet can do.

Specifically, when controlling the content of calcium carbonate and the stretching ratio of the film to a specific range, holes having a size (particle size) of about 10 to 90 탆, preferably about 40 to 60 탆, can be formed on the film. The size of such holes is smaller than the size of water particles of 100 mu m or more and larger than the size of the vapor of about 0.001 to 0.01 mu m. Therefore, although the excretion absorbed in the absorber does not leak to the outside due to the breathable waterproof film, hot air or water vapor inside the diaper can be easily discharged to the outside through the breathable waterproof film. When the content of calcium carbonate and the stretching ratio of the film are adjusted as described above, the air permeability of the breathable waterproof film is adjusted to a range of about 3500 to 4500 g / m 2 · 24 hr, and skin side effects can be more effectively prevented from occurring due to moist air .

The polymer resin is not particularly limited as long as it is a film material used in the art to block leakage of excretion to the outside, and examples thereof include polyethylene. Although the content of the polymer resin is not particularly limited, when the waterproof film is in the range of about 50 to 55% by weight based on the total weight of the waterproof film-forming composition, air and water vapor are prevented from leaking out of the excrement absorbed by the absorber Can be communicated through the backsheet.

The waterproof film-forming composition may further contain additives (for example, a dispersant, an antioxidant, a coloring agent, etc.) other than the above-mentioned polymer resin and calcium carbonate. The content of the additive may be about 1 to 10% by weight, preferably about 1.5 to 6% by weight based on the total weight of the waterproof film-forming composition.

Although the basis weight of the breathable waterproof film is not particularly limited, when the film thickness is about 15 to 22 g / m &lt; 2 &gt;, the strength of the film is further improved and the air permeability of the film can be adjusted in the range of about 3500 to 4500 g / , Air and water vapor can smoothly communicate with each other through the backsheet while preventing the excrement absorbed in the absorbent core from leaking to the outside, thereby further improving the wearing comfort of the wearer.

The liquid impervious nonwoven fabric sheet 32 can impart a touch like clothing to the wearer while preventing the excrement absorbed in the absorbent core from leaking to the outside. Examples of such liquid-impervious nonwoven fabric include thermal bonding non-woven fabric, spun-bond nonwoven fabric, through-air bonding nonwoven fabric, and the like, among which spunbond nonwoven fabric is preferable.

The raw materials (fibers) of the liquid-impervious nonwoven fabric include polyethylene (PE) fiber, polypropylene (PP) fiber, bi-component fiber such as PE / PP and copolymer fiber of PE- But is not limited thereto.

The basis weight of the liquid impervious nonwoven fabric is not particularly limited, but it is preferably about 10 to 25 g / m 2, more preferably about 13 to 20 g / m 2, The touch can be further improved.

In the present invention, the liquid-impervious nonwoven fabric sheet described above can be surface-treated (coated) with a silk powder-containing composition in order to further improve the wearing comfort of the wearer. The silk powder-containing composition is a composition comprising silk powder, silicone oil, surfactant and solvent, and can smoothly enhance the feel of the liquid impervious nonwoven fabric sheet, thereby alleviating skin irritation caused by wear of the diaper.

The silk powder is a substance extracted from a silkworm and is a skin-friendly natural moisturizing material having the same protein constituents as the skin consisting of 25% by weight of sericin as a water-soluble protein and 75% by weight of fibroin as a fiber protein. The liquid impervious nonwoven fabric sheet treated with such a silk powder can be relieved of skin irritation due to the silk powder when the absorbent article comes into contact with the skin of the wearer and can also be improved in wearing comfort due to the soft texture of the silk powder. In addition, even when the temperature and humidity are raised when the absorbent article is worn, discomfort of stickiness upon contact with the absorbent article due to the silk powder treated on the liquid-impervious nonwoven sheet can be minimized.

The content of the silk powder is not particularly limited. However, when it is about 0.5 to 1% by weight based on the total weight of the composition containing the silk powder, the manufacturing cost is reduced and the softness feeling is improved to minimize the skin irritation and further improve the wearing comfort .

The silk powder-containing composition includes a silicone oil. The silicone oil can fix the silk powder as a binder component to the surface of the liquid impervious nonwoven fabric sheet and further impart softness to the liquid impervious nonwoven fabric sheet.

The content of the silicone oil is not particularly limited, but when the silk powder is about 1 to 2% by weight based on the total weight of the composition containing the silk powder, the silk powder can be firmly fixed to the surface of the liquid-impervious nonwoven fabric.

In addition, the silk powder-containing composition includes a surfactant. The silicone oil is uniformly dispersed by the surfactant, so that the silk powder can be uniformly coated on the entire surface of the liquid impervious nonwoven fabric sheet by the silicone oil. The surfactant usable in the present invention is not particularly limited as long as it can disperse the silicone oil. For example, a nonionic surfactant, an anionic surfactant, a cationic surfactant, and an amphoteric surfactant can be used.

The content of such a surfactant is not particularly limited and may be about 0.1 to 5% by weight based on the total weight of the silk powder-containing composition.

In addition, the silk powder-containing composition includes a solvent. The solvent can uniformly mix the silk powder and the silicone oil to uniformly coat the entire surface of the liquid impervious nonwoven fabric sheet. Examples of the solvent include water, and alcohols such as methanol, ethanol, propanol, isopropanol, and butanol.

The content of the solvent may be such that the silk powder-containing composition is adjusted to be 100% by weight.

A method for treating the surface of the liquid impervious nonwoven fabric sheet with such a silk powder-containing composition is not particularly limited. For example, there is a method of coating a surface of a liquid impervious nonwoven fabric with a composition containing a silk powder and drying the composition.

The coating method is not particularly limited, and examples thereof include dip coating, spray coating, gravure coating, flexo printing, slot die coating, curtain coating, and slide coating. Of these, It is preferable to improve the feel of the entire liquid impervious nonwoven fabric.

Absorption Transmission layer >

The present invention may further comprise an absorbent delivery layer 40 between the liquid pervious topsheet 10 and the absorbent body 20 for transferring excrement absorbed through the topsheet 10 to the absorbent body 20 at a high speed have.

The absorbent transfer layer 40 is made of two or more liquid-permeable nonwoven fabric sheets for quickly absorbing excretion (body fluids) and delivering them to the absorber. For example, the absorbent transfer layer 40 may include a first liquid-permeable nonwoven fabric sheet (not shown) directly contacting the liquid-permeable topsheet 10, and a second liquid- And a liquid permeable nonwoven fabric sheet (not shown). In this case, the first liquid-permeable nonwoven fabric sheet has a flat structure and the second liquid-permeable nonwoven fabric sheet has a napkin formed on its surface. The second liquid-permeable nonwoven fabric sheet absorbs excretion (body fluids) .

Non-limiting examples of the liquid permeable nonwovens include through-air bonding nonwovens.

Non-limiting examples of the nonwoven fabric raw material (fiber) include polypropylene, polyethylene terephthalate and the like. The thickness of such fibers is not particularly limited, and if it is about 5 to 6 deniers, the excrement (body fluids) can be absorbed at a higher rate and delivered to the absorber.

Permeable topsheet 10 or may be laminated to the liquid-pervious topsheet 10, and then laminated to the liquid-pervious topsheet 10, To the liquid-permeable topsheet. Particularly, when the absorbent delivery layer and the liquid-pervious topsheet are punched simultaneously, the absorbed body fluid can be quickly absorbed into the absorbent body through the perforations, so that the contact time of the body fluid of the wearer can be reduced, Thereby reducing the contact area with the surface sheet and reducing skin irritation due to friction with the surface sheet.

The particle diameter of the perforations is not particularly limited, but may be about 0.1 to 5 mm, preferably about 0.5 to 1.5 mm.

The punching apparatus is not particularly limited, and may be, for example, a punching apparatus composed of a male roll and a female roll, and the male roll may be preheated to a temperature of about 80 to 150 ° C.

In addition, the fastening means 50 and the leakage preventing cuff 60, which the disposable diaper according to the present invention selectively includes, can use those known in the art.

Hereinafter, the present invention will be described in more detail with reference to examples and comparative examples. However, the following examples serve to illustrate the present invention, and the scope of the present invention is not limited thereto.

< Preparation Example  1> - Preparation of liquid-permeable topsheet

Each of the components listed in the following Table 1 was mixed and stirred to form a skin protection composition (viscosity: about 600 to 800 cps), and then the skin protection composition was applied to a through-air bonded nonwoven fabric sheet (fiber thickness: 1.5 D ) Surface. Thereafter, the breathable nonwoven fabric sheet coated with the skin protecting composition was passed through a hot air drying chamber to evaporate water to prepare a liquid-pervious topsheet surface-treated with a skin protecting composition.

ingredient Content (% by weight) menstruum Purified water Balance Mixed extract First extract Macadamia nut oil 1.5 5 to 15 Grape seed oil 1.0 Green tea seed oil 1.0 Lavender Oil 0.03 Second extract Hyaluronic acid 5.0 Aloe vera leaf extract 0.3 Marchia extract 0.3 Chamomile flower extract 0.3 Golden extract 0.1 Horsetail extract 0.1 Phytoncide Extract 0.1 glycerin 4.0 additive nexbase 2004 (hydrogenated polydecene) 2.3

< Preparation Example  2 > - Fabrication of an absorber

2-1. Manufacture of core wrap sheet

About 8 wt% of salicylic acid, about 61 wt% of polyethylene glycol, and about 31 wt% of cetyl alcohol were mixed to prepare a deodorant composition. Thereafter, the deodorant composition was coated on the surface of the hydrophilic aeration bonded nonwoven fabric sheet using a gravure coating apparatus. Then, a vented bonded nonwoven fabric sheet coated with the deodorant composition was passed through a hot air drying chamber to evaporate water to prepare a core wrapped sheet with a deodorant composition.

2-2. Fabrication of absorbers

The fluff pulp was mixed with a superabsorbent resin (resin polymerized with acrylic acid as the main raw material), and the mixture was wrapped with the core wrap sheet prepared in Preparation Example 2-1 to prepare an absorbent body.

< Preparation Example  3> - Production of liquid impermeable back sheet

3-1. Manufacture of breathable waterproof film

About 50 to 55 wt% of polyethylene, about 40 to 45 wt% of calcium carbonate, about 1 to 1.5 wt% of a dispersant, about 1 to 1.5 wt% of an antioxidant, and about 2 to 3 wt% Forming composition.

The waterproof film-forming composition was supplied to an extruder through a feed hopper and melted. The melted composition is kneaded in an extruder, extruded through a T-die in the form of a film, cooled and then heated to a temperature at which the film can be stretched so that the stretching ratio of the film is 2.5 to 3.5 times in the mechanical direction. Stretched, cooled gradually, and then cut into a certain width and length to obtain a breathable waterproof film.

3-2. Production of liquid impervious nonwoven fabric sheet

0.5 to 1% by weight of silk powder, 1 to 2% by weight of silicone oil, 0.5 to 1% by weight of a surfactant and the remaining amount of water were mixed to prepare a composition containing silk powder. Separately, a polypropylene fiber is spun at a high temperature to form a web on which polypropylene fibers are laminated, and then the web is bonded through a calendar roll having a predetermined pattern embossing process, Impermeable nonwoven fabric sheet with embossing of the liquid-impervious nonwoven fabric. Thereafter, the liquid impervious nonwoven fabric sheet prepared above was passed through a bath containing the silk powder-containing composition to coat the surface of the liquid impervious nonwoven fabric sheet with the silk powder-containing composition, and the moisture was evaporated in a dry oven A liquid impervious nonwoven fabric sheet surface-treated with silk powder was prepared.

3-3. Production of liquid impermeable back sheet

A liquid impervious backsheet was prepared by laminating the liquid impervious nonwoven fabric sheet prepared in Preparation Example 3-2 under the breathable waterproof film prepared in Preparation Example 3-1.

< Example  1> - Manufacture of disposable diapers

The absorbent body prepared in Preparative Example 2 and the liquid pervious topsheet prepared in Preparation Example 1 were laminated in order on the liquid impervious back sheet prepared in Preparative Example 3 and then adhered to each other to form a disposable diaper .

< Experimental Example  1> Core wrap sheet Deodorant  evaluation

Deodorizing property was measured as follows to confirm whether ammonia was removed from the core wrap sheet prepared in Preparation Example 2-1.

The surface of the nonwoven fabric 10 cm x 10 cm (0.2 g) was coated with the deodorant composition at a temperature of 24 DEG C and a humidity of 16%. Thereafter, the nonwoven fabric (test piece 1) coated with the deodorant composition was placed in a 1,000 ml container, and 500 g / ml ammonia (NH ₃ ) gas was injected into the container. After 2 hours had elapsed, the concentration of ammonia gas in the vessel was measured, and the deodorization rate (%) was calculated according to the following equation (1).

(In the above formula (1)

Cb is the concentration of the ammonia gas in the container after 2 hours passed with the nonwoven fabric not coated with the deodorant composition in the container,

Cs is the concentration of the ammonia gas in the container after 2 hours after putting the nonwoven fabric coated with the deodorant composition into the container)

As a result of the measurement, in the case of Test piece 1 (non-woven fabric coated with a deodorant composition), the deodorization rate was as high as 99.8% or more. From these results, it was found that, when the surface of the core wrap sheet according to the present invention is treated with the deodorant composition, the ammonia can be removed and the skin side effect can be prevented from occurring.

< Experimental Example  2> of breathable waterproof film Moisture permeability  evaluation

The moisture permeability of the breathable waterproof film prepared in Preparation Example 3-1 was measured as follows.

A portion of the breathable waterproof film (Test piece 2) prepared in Preparation Example 3-1 was put into a beaker (diameter: about 3 inches, depth: about 2 inches) containing 100 g of distilled water, and the beaker was sealed. Thereafter, the sealed beaker was placed in a thermostat / hygrostat (humidity: 50%, temperature: 38.7 ° C) for 24 hours. Thereafter, the distillation water remaining in the beaker was measured, and the water vaper permeability (g / m 2, 24 hr) was calculated according to the following equation (2).

(In Equation 2,

W ₁ is the initial distillation yield (g) in the beaker, 100 g,

W ₂ is the distillation quantity (g) remaining in the beaker after T hours,

T is the measurement time, 24 hours,

5263 is (10,000 m 2 / area of beaker) × T)

As a result of the test, the moisture permeability of the test piece 2 was 4,200 g / m 2 24 hr.

< Experimental Example  3>

The antibacterial effect of the core wrap sheet having the surface-treated deodorant composition according to the present invention was measured as follows. The measurement results are shown in Fig.

1. Test for Staphylococcus aureus

According to Test Method KS K 0693: 2011, a hydrophilic aeration bonded nonwoven fabric (test piece 3) in which the deodorant composition prepared in Preparative Example 2-1 was sprayed, a hydrophilic aeration bonded nonwoven fabric prepared in Preparation Example 2-1 (Control 1), a breathable bonded nonwoven fabric (nonwoven fabric used in Preparation Example 1) spraying the deodorant composition prepared in Preparation Example 2-1 (Control 2), and the deodorant composition prepared in Preparation Example 2-1 Staphylococcus aureus (ATCA 6538)] was inoculated in each of the sprayed liquid impervious nonwoven fabric (nonwoven fabric prepared in Preparation Example 3-1) (Control 3), and the number of initial bacteria and the number of bacteria after 2 hours The number of bacteria was measured and shown in Fig. The bacterial reduction rate after 2 hours is shown in Table 2 below. Table 2 Log X reduction means that it has 10 ^X-fold reduction compared to the initial number of bacteria.

Contrast 2 Contrast 3 Test piece 3 Log X reduction X = 2 X = 3 X = 4 Bacterial reduction rate (%) 99% 99.9 99.99

As a result of the test, the number of Staphylococcus aureus was about 10 ⁵ CFU (colony forming unit) after 2 hours in the control 1, while in the case of the test piece 3, the number of bacteria was less than about 10 CFU after 2 hours, 1 (see Fig. 3). As shown in Table 2, in the case of Test piece 3, the reduction rate of bacteria was Log 4 reduction, and the amount of Staphylococcus aureus was decreased by 99.99%.

It was thus confirmed that the core wrap sheet coated with the deodorant composition according to the present invention had an effect of inhibiting bacterial growth.

2. Test for Pseudomonas aeruginosa

According to Test Method KS K 0693: 2011, a hydrophilic aeration bonded nonwoven fabric (test piece 4) in which the deodorant composition prepared in Preparative Example 2-1 was sprayed, a hydrophilic aeration bonded nonwoven fabric in which the deodorant composition prepared in Preparation Example 2-1 was not sprayed (Control No. 4), a breathable bonded nonwoven fabric (control sheet 5 used in Preparation Example 1) in which the deodorant composition prepared in Preparative Example 2-1 was sprayed, and the deodorant composition prepared in Preparation Example 2-1 Pseudomonas aeruginosa (ATCC 9027)] was inoculated into each sprayed liquid impervious nonwoven fabric (nonwoven fabric prepared in Preparation Example 3-1) (Control 6), and then the number of initial bacteria and the number of bacteria after 2 hours passed And the results are shown in Fig. The bacterial reduction rates after 2 hours are shown in Table 3 below.

Control 5 Control 6 Test piece 4 Log X reduction 4 4 4 Bacterial reduction rate (%) 99.99 99.99 99.99

As a result of the test, in Comparative Example 4, the number of P. aeruginosa colonies was about 10 ⁵ CFU (colony forming unit) after 2 hours, while in Test Example 4, the number of bacteria was less than about 10 ^0.5 CFU after 2 hours, (See Fig. 4). As shown in Table 3, in the case of the test piece 2, the reduction rate of bacteria was Log 4 reduction, and that of Pseudomonas aeruginosa was decreased by 99.99%.

It was thus confirmed that the core wrap sheet coated with the deodorant composition according to the present invention had an effect of inhibiting bacterial growth.

< Experimental Example  4>

The contents of fluorescent whiteners, formaldehyde, chlorinated phenols and arylamine were measured on the liquid-permeable topsheet prepared in Preparation Example 1 according to the test method of the self-safety confirmation safety standard Annex 41, The pH of the core wrap sheet was measured. The measurement results are shown in Table 4 below.

Test Items Content (mg / kg) Remarks Fluorescent bleach 0 - Formaldehyde 0 Detection limit = 20 mg / kg Chlorinated phenols Pentachlorophenol (PCP) Less than 0.1 Detection limit = 0.1 mg / kg 2,3,5,6-tetrachlorophenol (TeCP) Less than 0.1 Arylamine 4-aminodiphenyl Less than 5 Detection limit = 5 mg / kg Benzidine Less than 5 4-chloro-o-toluidine Less than 5 2-naphthylamine Less than 5 o-aminoazotoluene Less than 5 2-amino-4-nitrotoluene Less than 5 p-chloraniline Less than 5 2,4-diaminoanisole Less than 5 4,4-diaminodiphenylmethane Less than 5 3,3-dichlorobenzidine Less than 5 3,3-dimethoxybenzidine Less than 5 3,3-dimethylbenzidine Less than 5 3,3-dimethyl-4,4-diaminodiphenylmethane Less than 5 p-kresidine Less than 5 4,4-methylene-bis- (2-chloroaniline) Less than 5 4,4-oxydianiline Less than 5 4,4-thiodianiline Less than 5 o-toluidine Less than 5 2,4-toluylenediamine Less than 5 2,4,5-trimethylaniline Less than 5 o-anisidine Less than 5 2,4-xylidine Less than 5 2,6-xylidine Less than 5 4-aminoazobenzene Less than 5

As a result of the test, the liquid bleaching surface sheet prepared in Preparation Example 1 did not elute the fluorescent bleaching agent and no formaldehyde was detected. In the liquid-permeable top sheet of Preparation Example 1, the content of chlorinated phenols was less than 0.1 mg / kg, and the content of arylamine was less than 5 mg / kg. On the other hand, the pH of the core wrap sheet prepared in Preparation Example 2-1 was 3.1, which was acidic.

Although the present invention has been described with reference to the drawings, it is merely exemplary, and it is common in the art that various modifications and changes can be made without departing from the spirit and scope of the invention as indicated by the appended claims. Anyone with knowledge can easily know. In addition, all details may be replaced by other technically equivalent elements.

100: diaper, A: front part,
B: Crotch part, C: Rear part
10: liquid permeable top sheet, 20: absorber,
21: absorbent core, 22: core wrap sheet,
30: back sheet, 31: breathable waterproof film,
32: liquid impervious nonwoven fabric sheet, 40: absorbent transfer layer,
50: fastening means, 60: leakage preventing cuff,
71, 72: elastic member

Claims (13)

A liquid pervious top sheet;
An absorbent body positioned below the surface sheet to absorb and retain feces;
And a liquid-impermeable back sheet
A disposable absorbent article comprising:
The surface sheet
(a) In the group consisting of evening primrose oil, macadamia integrifolia seed oil, grape seed oil, camellia sinensis seed oil, and lavender oil A first extract of a selected one or more selected from the group consisting of hyaluronic acid, phytoncide, portulaca oleracea, acacia collagen, chamomile extract, golden extract, A mixture extract of at least three kinds of second extracts selected from the group consisting of extracts,
(b) glycerin, and
(c) A disposable absorbent article comprising a liquid permeable nonwoven surface treated with a skin care composition comprising a solvent. The disposable absorbent article of claim 1, wherein the liquid pervious nonwoven fabric comprises fibers having a thickness of from 1.5 to 2 deniers. The method of claim 1,
The absorber comprising an absorbent core; And a core warp sheet laminated to the top, bottom or both of the absorbent cores, or wrapping the absorbent cores,
Wherein the core wrap sheet comprises a nonwoven fabric surface treated with a deodorant composition comprising salicylic acid, an alcohol and a polyether-type polyol. The method of claim 1,
Wherein the liquid impervious backsheet comprises a breathable waterproof film,
The breathable waterproof film is formed of a waterproof film-forming composition containing calcium carbonate and a polymer resin. The content of calcium carbonate is adjusted to a range of 40 to 45% by weight based on the total weight of the waterproof film-forming composition, Is formed in a range of 2.5 to 3.5 times the mechanical direction. 5. The method of claim 4,
Wherein the liquid impervious backsheet further comprises, under the breathable waterproof film, a liquid impervious nonwoven fabric sheet that has been surface treated with a silk powder containing composition. The method of claim 1,
Wherein the liquid impervious backsheet comprises a liquid impervious nonwoven sheet surface treated with a silk powder containing composition. A liquid pervious top sheet;
An absorber positioned below the topsheet to absorb and retain excretion; And
And a liquid-impermeable back sheet
A disposable absorbent article comprising:
The absorber comprising an absorbent core; And a core warp sheet laminated to the top, bottom or both of the absorbent cores, or wrapping the absorbent cores,
Wherein the core wrap sheet comprises a nonwoven fabric surface treated with a deodorant composition comprising salicylic acid, an alcohol and a polyether-type polyol. The method of claim 7, wherein
Wherein the liquid impervious backsheet comprises a breathable waterproof film,
The breathable waterproof film is formed of a waterproof film-forming composition containing calcium carbonate and a polymer resin. The content of calcium carbonate is adjusted to a range of 40 to 45% by weight based on the total weight of the waterproof film-forming composition, Is formed in a range of 2.5 to 3.5 times the mechanical direction. 9. The method of claim 8,
Wherein the liquid impervious backsheet further comprises, under the breathable waterproof film, a liquid impervious nonwoven fabric sheet that has been surface treated with a silk powder containing composition. The method of claim 7, wherein
Wherein the liquid impervious backsheet comprises a liquid impervious nonwoven sheet surface treated with a silk powder containing composition. A liquid pervious top sheet;
An absorber positioned below the topsheet to absorb and retain excretion; And
And a liquid-impermeable back sheet
A disposable absorbent article comprising:
The back sheet
A breathable waterproof film positioned below the absorber to prevent excretion held by the absorber from leaking to the outside; And
A liquid impervious nonwoven fabric sheet placed under the breathable waterproof film and surface-treated with a silk powder-
&Lt; / RTI &gt; 12. The method of claim 11,
The breathable waterproof film is formed of a waterproof film-forming composition containing calcium carbonate and a polymer resin. The content of calcium carbonate is adjusted to a range of 40 to 45% by weight based on the total weight of the waterproof film-forming composition, Is formed in a range of 2.5 to 3.5 times the mechanical direction. A liquid pervious top sheet;
An absorber positioned below the topsheet to absorb and retain excretion; And
Liquid impermeable back sheet located on the back of the absorbent body
A disposable absorbent article comprising:
Wherein the liquid impervious backsheet comprises a breathable waterproof film,
The breathable waterproof film is formed of a waterproof film-forming composition containing calcium carbonate and a polymer resin. The content of calcium carbonate is adjusted to a range of 40 to 45% by weight based on the total weight of the waterproof film-forming composition, Is formed in a range of 2.5 to 3.5 times the mechanical direction.

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