KR101906689B1 - Antibacterial nonwoven sheet, liquid-containing sheet, and face mask - Google Patents

Abstract

Wherein an antibacterial ethylene-vinyl alcohol copolymer containing an inorganic antibacterial microparticle dispersed therein is present in at least a part of the surface of the fiber, the inorganic antibacterial microparticles have an average particle diameter of 0.01 to 20 mu m and an antibacterial ethylene- The antimicrobial nonwoven fabric sheet in which the ethylene copolymer content of the alcohol copolymer is 10 to 70 mol% and the solvent-spun cellulose fiber is entangled with each other is excellent in antiseptic / antimicrobial properties even without containing parabens, When the composition is impregnated with various kinds of fluid compositions, it has good impregnability and liquid-repellency and can efficiently discharge the fluid composition by pressure or the like. By reducing the rigidity or the shrinkage due to impregnation of the fluid composition, An antibacterial nonwoven fabric sheet excellent in stability can be provided.

Description

ANTIBACTERIAL NONWOVEN SHEET, LIQUID-CONTAINING SHEET, AND FACE MASK [0002]

The present invention relates to a liquid composition comprising a cosmetic composition having functions of cleansing, wiping, moisturizing, and cosmetics of skin such as excretion, sebum and cosmetics, To an antibacterial nonwoven fabric sheet. The present invention also relates to a face sheet having antimicrobial properties, which is used by being impregnated with a fluid sheet containing a cosmetic ingredient, a pharmaceutical active ingredient and the like, and integrating the antimicrobial nonwoven sheet with the sheet.

Background Art [0002] Conventionally, functional sheets such as a wet tissue, a disposable towel, a sheet-like cosmetic material covering the skin, etc. in which a fluid composition of water or an aqueous fluid is integrated with a nonwoven fabric sheet are coated with hydrophilic fibers such as rayon, A nonwoven fabric obtained by applying a high-pressure water treatment to a fiber web made of a mixture of two or more of these nonwoven fabrics, or various nonwoven fabrics obtained by functional improvement of the nonwoven fabric. However, hydrophilic fibers such as rayon suffer from problems such as generation of wrinkles due to reduction in firmness of the fibers or shrinkage of the fibers during wetting, leading to deterioration of the form stability which hinders workability and lyophobicity, Water is taken in, and the effect of water can not be utilized effectively. In order to solve the above problems, it has been proposed to provide a thermally bonded nonwoven fabric comprising 50% by weight or more of hydrophobic synthetic staple fibers and having constituent fibers bonded to each other by a partial thermocompression bonding portion, (See, for example, Japanese Patent Application Laid-Open No. 2001-336053 (Patent Document 1)). In the composite wet sheet, webs are laminated and entangled.

However, as in Patent Document 1, a sheet produced by fusing a thermally adhesive component improves the shrinkage upon wetting, but the whole sheet is hardened, and the stickiness to the skin is lowered. Further, since the surface of the sheet is made of the hydrophilic fiber as the main fiber, the drug solution impregnated in the fiber is absorbed and can not be sufficiently wiped and released to the object. In addition, due to the expansion of societal demand, a function to accept various fluid compositions has been demanded.

In order to solve these problems, Japanese Unexamined Patent Application Publication No. 2008-261067 (Patent Document 2), for example, discloses a functional sheet having good tactile properties and excellent water retentivity, releasability, and shape stability and having a fiber length of 30 to 60 mm A nonwoven fabric sheet in which solvent-spun cellulose fibers and sheath / core type conjugate fibers are intertwined with each other, wherein the superfine composite fiber comprises an initial portion and a deep portion, and the initial portion is an ethylene- A nonwoven fabric sheet having a core portion made of a hydrophobic resin and a diameter of 5 to 15 탆 has been proposed.

In recent years, these nonwoven fabric sheets are required to have antimicrobial properties, and antiseptics and antimicrobial agents such as parabens have been widely used. However, there are situations where there is a need to limit the use of parabens, such as a question about having an endocrine disrupting effect in butylparabens, a high possibility of the occurrence of transient irritation in parabens as a whole, (Parabens free), it is demanded that the preservation and the antibacterial is planned in the present situation because there is a possibility of causing skin trouble such as skin disease.

Japanese Patent Application Laid-Open No. 2001-336053 Japanese Patent Application Laid-Open No. 2008-261067

That is, a problem to be solved by the present invention is to provide a composition which is excellent in antiseptic and antimicrobial properties even without containing parabens and the like, has a soft and good feel, has good impregnation and liquid retention when various fluid compositions are impregnated, The present invention is to provide an antibacterial nonwoven fabric sheet which is capable of efficiently discharging a fluid composition and which is low in rigidity due to impregnation of the fluid composition and less in shrinkage, thereby having excellent shape stability. It is another object of the present invention to provide a fluid-containing sheet excellent in liquid-tightness, releasability, and shape stability of a fluid composition which is good in touch and contains water or the like.

The present invention has been made in view of the above problems and has reached the present invention.

That is, the first invention is an antibacterial ethylene-vinyl alcohol copolymer containing an inorganic antibacterial microparticle dispersed therein, wherein the antibacterial microparticle is present in at least a part of the surface of the fiber, and the average particle diameter of the inorganic antibacterial microparticles is 0.01 to 20 탆 , And an antimicrobial fiber having an ethylene content of 10 to 70 mol% of the antibacterial ethylene-vinyl alcohol copolymer and a solvent-spinning cellulose-based fiber are entangled with each other.

The second invention is an antibacterial nonwoven fabric sheet characterized in that the fiber length of the antimicrobial fiber and the solvent spinning cellulose-based fiber of the first invention is 5 to 60 mm and they are entangled with each other.

The third invention is the antibacterial fiber according to the first invention and / or the second invention, wherein the inorganic fiber-reinforced composite fiber is an ultrafine composite fiber, the inorganic fiber having an average particle size of 0.01 to 20 탆, An ethylene-vinyl alcohol copolymer and an antimicrobial nonwoven fabric sheet wherein the core portion is made of a hydrophobic resin and has a diameter of 5 to 15 占 퐉.

The fourth invention is the antibacterial nonwoven fabric sheet of any one of the first to third inventions, wherein the surface of the antibacterial nonwoven fabric sheet has irregularities.

The fifth invention is the antibacterial nonwoven fabric sheet of any one of the first to fourth inventions, wherein the antimicrobial nonwoven fabric sheet comprises 30 to 90% by weight of the antibacterial fiber.

The sixth invention is the antibacterial nonwoven fabric sheet of the fifth invention, wherein the antimicrobial fiber contains 40 to 90% by weight of the antibacterial fiber and the Young's modulus of the antibacterial fiber is 25 cN / dtex or more.

The seventh invention is a fluid-bed sheet in which the antimicrobial nonwoven fabric sheets of the first to sixth inventions and the fluid composition are integrated.

An eighth aspect of the present invention is the receiver sheet of the seventh aspect, wherein the fluid composition contains water.

The ninth invention is the sea water-containing sheet of the seventh invention, wherein the fluid composition is a sea water-containing sheet containing a cosmetic.

A tenth aspect of the invention is the sea water-containing sheet of the ninth invention, which is a skin care sheet.

The eleventh aspect of the present invention resides in the ninth solution sheet of the ninth or tenth aspect of the present invention, wherein when the fluidity composition is impregnated at 900 wt% with respect to its own weight, and a load of 260 g / Is not less than 35% in 5 minutes.

The twelfth invention is a face mask using the sea salt liquid seats of the ninth to eleventh inventions.

According to the above-described means, the present invention provides a method for producing a liquid composition, which is effective for adsorption and absorption on the skin of a fluid composition containing a cosmetic having functions of cleansing, wiping, moisturizing and cosmetics of skin such as feces, To provide a antibacterial nonwoven fabric sheet comprising the antibacterial nonwoven fabric sheet and a face mask comprising the antibacterial nonwoven fabric sheet.

The first invention is an antibacterial ethylene-vinyl alcohol copolymer in which an antibacterial ethylene-vinyl alcohol copolymer containing inorganic antibacterial microparticles dispersed therein is present in at least a part of the surface of the fiber and the solvent spinning cellulosic fiber have not only hydrophilicity, The two fibers are entangled with each other to form a nonwoven fabric sheet, so that it is soft and tactile. In addition, both of the fibers in which the antibacterial ethylene-vinyl alcohol copolymer exists in at least a part of the surface of the fiber and the solvent-spinning cellulose-based fibers are highly impregnated with the fluid composition, so that the fluid composition such as water can be rapidly impregnated.

The antimicrobial ethylene-vinyl alcohol copolymer has a hydrophobic part and its ethylene content can be adjusted, or the antimicrobial ethylene-vinyl alcohol copolymer may be contained in at least a part of the surface of the fiber, Various contents of the fluid composition can be impregnated.

In addition, the solvent-spinning cellulose-based fibers have high liquid retentivity in hydrophilic fluid compositions such as water, an aqueous solution, a polar solvent, and emulsions thereof. On the other hand, fibers having an antimicrobial ethylene-vinyl alcohol copolymer in at least a part of the surface of the fibers have low liquid retentivity. For this reason, the fluid composition near the fiber, which easily exists in at least a part of the surface of the fiber of the antibacterial ethylene-vinyl alcohol copolymer due to the pressure or the like, seeps out. In addition, since the fibers in which at least a part of the antimicrobial ethylene-vinyl alcohol copolymer having released the flowable composition is present on the surface of the fiber, the flowable composition is further taken from the solvent-spinning cellulosic fiber with high impregnation property, It seeps out. In the antibacterial nonwoven fabric sheet of the present invention, the fibers in which at least a part of the antibacterial ethylene-vinyl alcohol copolymer is present on the fiber surface and the solvent spinning cellulose fibers are entangled with each other, have. The releasing property of the fluid composition impregnated by them is increased, so that the flowable composition can be effectively used.

The antibacterial ethylene-vinyl alcohol copolymer is present in a state in which the inorganic antibacterial microparticles having a specific particle diameter are dispersed in the interior, whereby the inorganic antibacterial microparticles are removed from the fibers and / or the nonwoven fabric sheet by physical foreign substances such as abrasion Can be prevented, and the antibacterial performance can be continuously exhibited.

The second invention relates to a nonwoven fabric which has a fiber length of 5 to 60 mm and a fiber having an antimicrobial ethylene-vinyl alcohol copolymer in at least a part of the surface of the fiber and a solvent-spinning cellulosic fiber, whereby the rigidity, And it is possible to realize soft touch and fit to the skin. In the production by fiber entanglement in a dry condition in particular, a bulk nonwoven fabric sheet excellent in impregnation of a fluid composition and excellent in cushioning property is obtained.

The third invention is an ultrafine composite fiber comprising an antimicrobial ethylene-vinyl alcohol copolymer as a core part and a hydrophobic resin as a core part, and the core part having a diameter of 5 to 15 占 퐉 is less shrinkable by water impregnation , An antimicrobial nonwoven fabric sheet which is hardly wrinkled and does not inhibit liquid retention and workability can be obtained. In addition, since the feeling of firmness of the seam can be felt in use at the time of use, the soft touch is enhanced, and in the use of a substrate such as a cosmetic material in which it is important to adhere to the skin, for example,

In the fourth invention, since the surface of the antibacterial nonwoven fabric sheet has irregularities, an air layer is formed between the antibacterial nonwoven fabric sheet and the skin when the antibacterial nonwoven fabric sheet is brought into close contact with the skin. Further, since the surface of the antibacterial nonwoven fabric sheet has irregularities, the surface area of the antimicrobial nonwoven fabric sheet is increased, so that the adhesion to the skin is enhanced. In applications such as a wet tissue, a disposable towel, and a fluid-bed sheet using a fluid composition containing a cosmetic, the fluid composition is retained in the concave portion by impregnating the fluid composition with pressure and releasing it by pressure, The release of a good flowable composition is obtained, so that the feel is even better. In addition, the liquid-repellent effect of the fluid composition is enhanced by the concave portion, and the fluidity composition of a wide polarity can be maintained without controlling the overall polarity by the copolymerization ratio of the antibacterial ethylene-vinyl alcohol copolymer.

The fifth invention is the antibacterial nonwoven fabric sheet of the present invention, which contains 30 to 90% by weight of the antibacterial fiber and 70 to 10% by weight of the solvent-spinning cellulose fiber, It is possible to obtain an antibacterial nonwoven fabric sheet excellent in balance of impregnating property, releasability property and hydrophilic property and having good liquid retentivity and morphological stability due to shrinkage of fibers at the time of impregnation and reduction of firmness have.

The sixth invention is the antibacterial nonwoven fabric sheet of the present invention, which contains 40 to 90% by weight of the antibacterial fiber and the Young's modulus of the antibacterial fiber is 25 cN / dtex or more so that the antibacterial fiber is smooth, In addition, a fluid composition containing a cosmetic composition such as a serum or the like can be impregnated quickly, and an antimicrobial nonwoven fabric sheet with appropriate rigidity and elasticity can be obtained.

The seventh invention is an antifungal nonwoven fabric sheet according to the seventh aspect of the present invention, which is a fluffy sheet in which a fluid composition is integrated with the antibacterial nonwoven fabric sheet of the present invention, , A face mask and the like.

The eighth aspect of the present invention is a fluid sheet (water-in-oil sheet) containing water, which has good tactile feel and excellent water retentivity, releasability, and shape stability, and is preferable for the above-described applications.

The ninth invention is that the fluid composition is a seaweed sheet containing a cosmetic, which can be easily and cleanly attached to the skin because it has good feel, good releasability of the cosmetic, and excellent shape stability.

The tenth aspect of the present invention can provide a skin care sheet excellent in impregnating property and liquid-retaining property of a fluid composition containing a cosmetic by using the above-mentioned fluid-containing sheet.

The eleventh invention is characterized in that when the beauty liquid (cosmetic) is impregnated with 900 wt% of its own weight and the load of 260 g / cm < 2 > is removed by being loaded for 1 minute, the restoration against compression in the thickness direction is 35% It is possible to obtain a seaweed sheet capable of sufficiently retaining the return of the serum of the pressurized portion.

In the twelfth invention, by using the above-mentioned saline solution sheet, the serum (cosmetic) can be made into a face mask sufficiently permeable to the skin.

Fig. 1 is a schematic view for explaining a measuring method of the raw fabric turning in the embodiment. Fig.
Fig. 2 is a schematic view for explaining a measuring method of liquid return to the raw fabric in the embodiment. Fig.

<Antibacterial Nonwoven Sheet>

The antimicrobial nonwoven fabric sheet of the present invention is a nonwoven fabric in which the antimicrobial ethylene-vinyl alcohol copolymer is present in at least a part of the surface of the fiber (hereinafter sometimes abbreviated as "antimicrobial EVOH-containing fiber" or simply "antimicrobial fiber" And solvent-spinning cellulose fibers are entangled with each other to form a smooth and bulk fiber-entangled body by making the above-mentioned uniformly mixed fibers nonwoven by a water entrainment method or the like.

The antibacterial fiber used in the present invention is present in at least a part of the surface of the fiber, the ethylene-vinyl alcohol copolymer containing the inorganic antibacterial microparticles dispersed therein.

The antimicrobial ethylene-vinyl alcohol copolymer used in the present invention preferably has a proportion of ethylene units (copolymerization ratio) of 10 to 70 mol%, the remainder being vinyl alcohol units alone, or repeating vinyl alcohol and other vinyl-based monomers . The proportion of the ethylene unit is preferably 20 to 55 mol%, more preferably 30 to 50 mol%. When the vinyl alcohol unit and other vinyl-based monomer units are used in combination, the ratio of the vinyl alcohol unit is not particularly limited, but is usually larger than other vinyl-based monomer units, and preferably in a molar ratio of (vinyl alcohol Based monomer units) is 55:45 to 99.9: 0.1, more preferably 70:30 to 99.9: 0.1, and particularly preferably 80:20 to 99.9: 0.1.

When the proportion of the ethylene unit in the ethylene-vinyl alcohol copolymer is less than 10 mol%, the yarn becomes poor in the yarn quality when spinning, so that single yarn breakage and single yarn breakage during spinning絲) becomes more disconnected, and also becomes less flexible. Further, there arises a problem that the shape is changed by swelling with low temperature (20 to 60 DEG C) water.

On the other hand, when the proportion of the ethylene unit exceeds 70 mol%, the ratio of the vinyl alcohol unit, that is, the hydroxyl group is inevitably decreased, the hygroscopicity is lowered and the effect of the inorganic antibacterial microparticles retained in the copolymer is not sufficiently obtained Which is undesirable.

The ethylene-vinyl alcohol copolymer may be obtained by saponifying a vinyl acetate portion of an ethylene / vinyl acetate copolymer, and the degree of saponification of the vinyl alcohol unit in the ethylene-vinyl alcohol copolymer is particularly limited But is preferably 90 to 99.99 mol%, more preferably 95 to 99.98 mol%, particularly preferably 96 to 99.97 mol%. If the degree of saponification is too small, not only the physical properties such as strength are lowered but also the thermal stability is lowered and the stability is lowered due to thermal decomposition or gelation. On the other hand, if the degree of saponification is too large, the production of the fibers themselves becomes difficult.

The number average molecular weight of the ethylene-vinyl alcohol copolymer is not particularly limited, but is preferably 5000 to 25000, and more preferably 8000 to 20,000. The number average molecular weight referred to herein is a value measured by the GPC method.

The ethylene-vinyl alcohol copolymer is commercially available, for example, from Kuraray Co., Ltd. under the trade name of "Evar" and also from Nippon Synthetic Chemical Industry Co., Ltd. under the trade name "Soyanor" It is possible. It is also possible to produce an ethylene / vinyl acetate copolymer from commercially available ethylene and vinyl acetate by radical polymerization or the like and saponify it.

The kind of the inorganic antibacterial microparticles used in the present invention is not particularly limited and any inorganic antibacterial microparticles which do not cause volatilization, degradation, deterioration or the like by heating at the time of melt spinning of the fibers and which do not lower the antibacterial activity in a short period of time .

Examples of the inorganic antibacterial microparticles include inorganic antibacterial microparticles in which an inorganic carrier contains metal ions having an antibacterial action such as silver ion, copper ion, zinc ion, and tin ion, and titanium oxide inorganic antibacterial microparticles. One or more of them may be used.

The type of the inorganic carrier used in the present invention is not particularly limited as long as it can contain metal ions having antimicrobial properties and can inhibit the deterioration action of the fibers. For example, as such an inorganic carrier, Is preferably used. An inclusion lattice is a gap in which an atom or molecule is contained. An inorganic powder having this inclusion lattice has a property of trapping a molecule in a part of a structure having a microstructure or a basket cavity.

Examples of the inorganic carrier having an inclusion lattice include zeolite, a layered phosphate (zirconium phosphate, titanium phosphate, calcium phosphate, etc.), a layered clay mineral, a transition metal chalcogenide, graphite, a transition metal oxide and a layered oxygenate salt. These inorganic carriers may be used singly or in combination of two or more kinds.

Among them, zeolite having high ion exchange capacity and zirconium phosphate are particularly preferable. Of the above-mentioned inorganic antibacterial microparticles, inorganic antibacterial microparticles in which silver ions are held in the above-mentioned inorganic carrier are particularly preferably used in the present invention.

The average particle diameter of the inorganic antibacterial microparticles contained in the ethylene-vinyl alcohol copolymer used in the present invention is 0.01 to 20 占 퐉, preferably 0.1 to 10 占 퐉, and more preferably 0.3 to 6 占 퐉. When the average particle diameter of the inorganic antibacterial microparticles is larger than 20 m, it is not preferable because the fibers are liable to be clogged with single fibers and filters when spinning, and the inorganic antibacterial microparticles are easily removed from the fibers. In addition, The inorganic antibacterial microparticles must be smaller than the fiber diameter and the inorganic antibacterial microparticle diameter / fiber diameter ratio is preferably 0.8 or less. On the other hand, when the average particle diameter of the inorganic antibacterial microparticles is less than 0.01 탆, aggregation between inorganic antibacterial microparticles tends to occur at the time of kneading, and it is not preferable that the inorganic antibacterial microparticles are uniformly dispersed in the ethylene-vinyl alcohol copolymer.

The amount of the inorganic antibacterial microparticles to be contained in the antibacterial ethylene-vinyl alcohol copolymer used in the present invention is preferably 0.01 to 10% by weight, more preferably 0.1 to 5% by weight, based on the weight of the ethylene- By weight, more preferably 0.5 to 1.5% by weight. Antimicrobial property in the inorganic fine particles Although it may vary depending on the ion exchange capacity or adsorption amount by the metal ion, it is preferable that the inorganic fine particles (antibacterial property) in which 90% or more of the ion exchange capacity or metal ion adsorptivity is ion- Metal ion-retaining inorganic fine particles), if the addition amount of the antibacterial metal ion-retaining inorganic fine particles is less than 0.01% by weight, it is difficult to impart sufficient antibacterial performance to the fibers, and it becomes difficult to obtain durable antibacterial performance. On the other hand, if the addition amount of the antibacterial metal ion-retaining inorganic fine particles exceeds 10% by weight, the antibacterial performance is sufficient, but the flocculation of the inorganic antibacterial microparticles tends to occur in the fibrous process, not.

The ethylene content (E: mol%) of the ethylene-vinyl alcohol copolymer used in the present invention and the ratio (W: wt%) of the inorganic antibacterial microparticles in the ethylene-vinyl alcohol copolymer are represented by the following May have a relationship of expression.

E.g,

1? (100 - E)? W? 90

. Preferably,

5? (100 - E) x W? 80

to be.

The antibacterial EVOH-containing fiber of the present invention is not particularly limited as long as it has an antibacterial ethylene-vinyl alcohol copolymer containing inorganic antibacterial microparticles dispersed therein, at least on the outer surface thereof. The antibacterial ethylene- The fiber may be a single copolymer or a composite fiber with another thermoplastic polymer.

The other thermoplastic polymer to be used in the present invention is not particularly limited as far as it can be combined with an antibacterial ethylene-vinyl alcohol copolymer, and a wide variety of thermoplastic polymers can be used depending on the purpose of the fiber. Examples of other thermoplastic polymers include polyolefin resins, polyester resins, polyamide resins, polyvinyl chloride, polyvinylidene chloride, styrene resins, polyvinyl acetate resins, acrylic resins, polylactic acid resins, Polycarbonate resin, thermoplastic elastomer, and other thermoplastic polymers. Further, an ethylene-vinyl alcohol copolymer having no antibacterial property may be used as another thermoplastic polymer.

Above all, polyolefin resins, polyester resins, and polyamide resins are preferably used from the viewpoints of heat resistance, fiber formability and dimensional stability. Further, polyolefin resins and hydrophobic resins such as polyester resins Is particularly preferable. This point will be described later.

As the polyolefin-based resin, polypropylene and polyethylene are preferable, and these polyolefin-based resins may contain other copolymerizable units.

Examples of the polyester resin include aromatic polyester resins (such as polyethylene terephthalate (PET), polytrimethylene terephthalate, polybutylene terephthalate, and polyethylene naphthalate) such as poly C _2-4 alkylene arylate type resins, Particularly, a polyethylene terephthalate resin such as PET is preferable. The polyethylene terephthalate resin may contain, in addition to an ethylene terephthalate unit, other dicarboxylic acids (for example, isophthalic acid, naphthalene-2,6-dicarboxylic acid, phthalic acid, 4,4'-diphenylcarboxylic acid, (Carboxyphenyl) ethane, 5-sodium sulfoisophthalic acid and the like) or a diol (e.g., diethylene glycol, 1,3-propanediol, 1,4-butanediol, 1,6-hexanediol, neopentyl glycol , Cyclohexane-1,4-dimethanol, polyethylene glycol, polytetramethylene glycol, etc.) in a proportion of 20 mol% or less.

Examples of the polyamide-series resin include aliphatic polyamides such as polyamide 6, polyamide 6-6, polyamide 6-10, polyamide 10, polyamide 12 and polyamide 6-12, and copolymers thereof, aromatic dicarboxylic acids A semi-aromatic polyamide synthesized from an acid and an aliphatic diamine and the like are preferable. These polyamide resins may contain other copolymerizable units.

When the antibacterial EVOH-containing fiber of the present invention is a conjugated fiber, it is preferable that the mixing ratio of the ethylene-vinyl alcohol copolymer: other thermoplastic polymer is 10:90 to 90:10 by weight. If the ratio is out of this range, the composite ratio becomes unbalanced, so that there arises a problem that the discharged yarn after ejection of the nozzle is bent, which is not preferable because the radioactivity is poor. The mixing ratio of the ethylene-vinyl alcohol copolymer: other thermoplastic polymer is more preferably 30:70 to 70:30 in weight ratio.

The complex type of the conjugate fiber is not particularly limited as long as it has at least a portion of the outer surface of the ethylene-vinyl alcohol copolymer containing inorganic antibacterial microparticles in the fiber, such as a centrifugal, sea-island, Their mixed type, and the like. In the case of the superficial type, it may be either a two-layered ultracentric type or a multi-layered superficial type having three or more layers. In the case of a sea chart type, the shape, number, and dispersion state of the island may be arbitrarily selected, and a part of the island may be exposed on the surface of the fiber. In addition, in the case of the sticking type, the end face of the fiber perpendicular to the longitudinal direction of the fiber may be in any state of a straight line, a circular arc, or any other arbitrary curve, It may be parallel, radial, or any other shape.

Of the above complex forms, particularly, the ultrafine composite fibers are preferable from the viewpoint of antibacterial performance since an ethylene-vinyl alcohol copolymer containing inorganic antibacterial microparticles is disposed on the entire fiber surface. Further, in the case of the antibacterial nonwoven fabric sheet of the present invention, when the single fiber of the ethylene-vinyl alcohol copolymer containing the inorganic antibacterial microparticles is used, rigidity is lowered due to absorption (absorption of the fluid composition) , It is difficult to keep the spaces between the fibers compressed by the effects of the liquid absorbing and the external force applied at the time of its production, processing, packaging, and the like, and as a result, It may become difficult to secure a sufficient amount of water. On the other hand, by using a centrifugal composite fiber and a hydrophobic resin at the core portion, the deep portion is not absorbed even when the initial portion is absorbed, and the rigidity is not changed, and the desired bulk, that is, porosity is maintained in these processing steps It is possible to maintain liquid-absorbing property together with the antimicrobial nonwoven fabric sheet in the wet state, and to maintain the firmness of the antimicrobial nonwoven fabric sheet in the wet state, and to maintain the feeling when pressed by the skin.

That is, in order to secure a high porosity in the antibacterial nonwoven fabric sheet of the present invention, it is preferable that the antibacterial nonwoven fabric sheet is composed of fibers having a high Young's modulus (initial tensile resistance) and high bending elasticity. In particular, in order to secure high fiber elasticity even when the antibacterial nonwoven fabric sheet is in a state of absorbed in the processing step of these fibers, it is preferable that the constituent fibers are made of a high-elasticity resin. The higher the Young's modulus, the porosity of the non-woven fabric can be maintained, so that the liquid-repelling property can be maintained and the workability can be improved.

In the antibacterial nonwoven fabric sheet of the present invention, when the content of the antibacterial EVOH-containing fibers described later is 40 to 90% by weight, the Young's modulus of the antibacterial EVOH-containing fibers is preferably 25 cN / dtex or more. In particular, the Young's modulus of the antibacterial EVOH-containing fiber is more preferably 25 to 90 cN / dtex, more preferably 30 to 70 cN / dtex, particularly preferably 35 to 60 cN / dtex. If the Young's modulus of the antibacterial EVOH-containing fiber is too low, the obtained antimicrobial nonwoven fabric sheet can not improve firmness and elasticity. The structure of the antibacterial EVOH-containing fiber is not particularly limited as long as it has the aforementioned Young's modulus and may be a single fiber of ethylene-vinyl alcohol copolymer containing inorganic antibacterial microparticles (single-phase fiber) From the viewpoint of compatibility with each other, a superfine composite fiber is preferable.

When the antimicrobial EVOH-containing fiber used in the present invention is an ultrafine composite fiber, it is preferable that the initial portion is made of a hydrophilic resin in order to ensure wettability and liquid retentivity. The supporter composed of a hydrophilic resin plays an important role in accepting the fluid composition into the interior of the antimicrobial nonwoven fabric sheet when a fluid composition containing a cosmetic (serum or the like) is added to the antimicrobial nonwoven fabric sheet, And it plays a role of keeping a large amount of cosmetic material received in the sheet from being shed when handled at the time of use.

A resin having a higher Young's modulus than an ethylene-vinyl alcohol copolymer and having excellent radioactivity in combination with an ethylene-vinyl alcohol copolymer may include a polyolefin resin and a polyester resin, The polyester resin can be said to be optimal in that the shrinkage of the antibacterial nonwoven fabric sheet can be suppressed and the workability is improved.

In order to maintain the porosity of the antimicrobial nonwoven fabric sheet, to increase the amount of absorbed liquid, to provide firmness to the nonwoven fabric, and to improve workability at the time of wetting, the ultrafine composite fibers are preferable, and the core portion has a diameter of 5 to 15 탆 . Even more preferably, the diameter of the core portion is 8 to 12 占 퐉. As described above, it is preferable to use a hydrophobic resin, particularly a polyester resin. If the diameter of the core portion is less than 5 占 퐉, the firmness of the fibers is lowered, and as a result, the density of the nonwoven fabric is increased and the amount of impregnation of the fluid composition is liable to be lowered. Further, the firmness of the nonwoven fabric is also lowered, and in some cases, the releasability and mounting property in a state in which the fluid composition is impregnated may be deteriorated. On the other hand, since the strength of the fiber becomes too strong when the diameter of the core part exceeds 15 mu m, a fluidized sheet (hereinafter described) using a fluid composition containing a cosmetic, which is used to cover the face in particular, Since the density of the nonwoven fabric is lowered due to the strong firmness of the fibers, the distance between the fibers in the nonwoven fabric becomes too far away, and the cosmetic can not be held between the fibers, making it easier to discharge the liquid unnecessarily.

The cross-sectional shape of the antibacterial EVOH-containing fiber of the present invention may be any shape, and may have a circular shape or a shape of a release. In the case of the deformed cross section, for example, polygonal shapes such as a flat shape, an elliptical shape, a triangular shape, a rectangular shape, a pentagon shape, a hexagonal shape, a hexagonal shape and an octagon shape, a T shape, an H shape, a V shape, Or a multi-leaf shape, and may be in the form of a hollow section thereof.

The fineness of the antibacterial EVOH-containing fiber used in the present invention can be selected, for example, in the range of 0.01 to 100 dtex, preferably 0.5 to 30 dtex, and more preferably 1.0 to 10 dtex, depending on the application. When the fineness of the antibacterial EVOH-containing fiber is less than 0.01 dtex, the inorganic antibacterial fine particles from the fiber tend to fall off. When the fineness of the antibacterial EVOH-containing fiber exceeds 100 dtex, the performance of the antibacterial agent In particular, a face mask (to be described later), which is used by impregnating a fluid composition containing a cosmetic, which is used in particular to cover the face, because the firmness of the fiber becomes too strong, Since the density of the nonwoven fabric is lowered due to the strong firmness of the fibers, the distance between the fibers in the nonwoven fabric becomes too great, the cosmetic can not be held between the fibers, and the liquid becomes liable to be discharged unnecessarily. I do not.

The antimicrobial EVOH-containing fiber used in the present invention or the fiber product using the fiber may further contain additives such as a stabilizer (heat stabilizer such as a copper compound, ultraviolet absorber, light stabilizer, antioxidant, etc.) Fine particles, a colorant, a fluorescent whitening agent, an antistatic agent, a flame retardant, a deodorant, a plasticizer, a lubricant, a crystallization rate retarder and the like. These additives may be used alone or in combination of two or more. These additives may be contained in the fibers or may be carried on the surface of the fiber aggregate.

The method for producing the antibacterial EVOH-containing fiber used in the present invention is not particularly limited. For example, in the case of using a conjugate fiber composed of two components with a hydrophobic resin, each resin is melted and kneaded with a different extruder, And then the both resins are led to the spinning head and discharged from the same spinning nozzle and taken out by the drawing roller.

The antimicrobial EVOH-containing fiber used in the present invention is usually stretched and used. However, the stretching method may be a one-step stretching method in which the fibers discharged from the nozzle at the time of spinning are stretched between hot rolls, The two-step method may be employed in which the phosphorus is taken once and then hot-rolled at a low speed in a water bath or hot air furnace.

The above-mentioned antibacterial EVOH-containing fiber is excellent in touch and hydrophilicity. However, for example, when the antimicrobial nonwoven fabric sheet is made of 100% of the antibacterial EVOH-containing fibers, impregnation with an aqueous fluid composition is excellent. However, since the fibers themselves have low water absorbency, It is also difficult to liquefy the remained aqueous fluid composition in the sheet space. Therefore, when the aqueous fluid composition is impregnated and used, it takes a long time for the liquid-absorbent solution to lower the efficiency of workability, and since some of the aqueous fluid composition is unnecessarily discharged from the interior of the sheet, It is important that the antimicrobial nonwoven fabric sheet of the present invention is formed by using solvent-spun cellulose-based fibers in combination with the antibacterial EVOH-containing fibers, without using 100% of the antibacterial EVOH-containing fibers.

In the antibacterial nonwoven fabric sheet of the present invention, the content of the antibacterial EVOH-containing fibers is preferably 30 to 90% by weight, more preferably 40 to 90% by weight. The lower limit of the content of the antibacterial EVOH-containing fibers is more preferably 50% by weight or more, particularly preferably 60% by weight or more, and the upper limit of the content of the antibacterial EVOH fibers is more preferably 80% Is not more than 75% by weight, particularly preferably not more than 70% by weight. The content of the solvent-spinning cellulose fiber is preferably 10 to 70% by weight, more preferably 10 to 60% by weight. The lower limit of the content of the solvent-spinning cellulose fibers is more preferably 20% by weight or more, still more preferably 25% by weight or more, particularly preferably 30% by weight or more, and the upper limit of the content of the solvent- By weight, more preferably not more than 50% by weight, particularly preferably not more than 40% by weight.

If the content of the antibacterial EVOH-containing fibers is less than 30% by weight, the unique stiffness of the cellulose-based fibers at the time of wetting becomes strong, and the smoothness of the obtained antimicrobial nonwoven fabric sheet is reduced. If the content of the antibacterial EVOH-containing fiber is less than 30% by weight, the proportion of the fluid composition to be incorporated into the fibers increases, which hinders effective use thereof on the skin. On the other hand, if the content of the antibacterial EVOH-containing fiber exceeds 90% by weight, the impregnation force, particularly the infiltration rate, decreases, and the fluid composition retention decreases and the fluid composition is discharged unnecessarily from the inside of the sheet, I do not.

Unlike so-called regenerated cellulose-based fibers in which cellulose is once converted to a cellulose derivative and then re-converted to cellulose, such as conventional viscose rayon, copper ammonia rayon, etc., the solvent-spinning cellulose- Means a fiber (purified cellulose fiber) in which cellulose is precipitated from a solution obtained by simply dissolving it in a solvent without changing it chemically.

Preferred examples of the solvent-spinning cellulose-based fibers used in the present invention include cellulose-based fibers produced by a method in which a spinning solution obtained by dissolving cellulose in an amine oxide is dried and wet-spun in water to precipitate cellulose, . Representative examples of such fibers include lyocell, which is sold under the trade name &quot; TENCEL &quot; (registered trademark) by Len K. K. of Austria. Unlike the regenerated cellulose-based fibers used in general use, such fibers have a circular or elliptical cross-sectional shape, and are therefore highly desirable because they have a low risk of causing skin irritation in use for an adult. Further, in viscose rayon fibers, the fiber strength is lowered under a wet condition. In a sheet obtained by mixing these fibers, deformation occurs in a wet state impregnated with a fluid composition containing a chemical solution or the like, and workability is deteriorated. In addition, in the case of using, for example, a fluid-containing sheet (described later) comprising a fluid composition containing fibers and a cosmetic as one body, the fitting property is inferior. On the other hand, the antimicrobial nonwoven fabric sheet of the present invention is very preferable because it hardly causes a drop in strength even under a wet condition, and therefore does not change in shape and has excellent attachability.

Usually, the solvent-spun cellulose-based fibers are often fibrillated by beating, refining, high-speed grinding and the like to fibrillate the fibers. In the present invention, by fibrillating the fibers, fine fibers adhere to the face It is preferable to use a solvent-spun cellulose-based fiber which is not substantially fibrillated.

The fiber fineness of the solvent-spun cellulose-based fibers is not particularly limited, but is preferably 1 to 3 dtex, more preferably 1 To 2 dtex, and more preferably 1.3 to 1.7 dtex. If the single fiber fineness is more than 3 dtex, the skin feel to the skin may be deteriorated, or the liquid-absorbent composition containing the cosmetic may have a poor liquid-absorbing property and hence poor water-solubility. On the other hand, if it is less than 1 dtex, the density of the nonwoven fabric increases and the interfiber pores decrease, so that the impregnation amount of the fluid composition is lowered.

In addition, the polarity of the entire antimicrobial nonwoven fabric sheet can be adjusted by mixing ratio of the antibacterial EVOH-containing fiber and the solvent-spinning cellulose fiber and the resin polarity of the antibacterial ethylene-vinyl alcohol copolymer, and the amount of impregnation and texture of the fluid composition However, by controlling the thickness of each fiber, it is possible to control the tactile feeling without affecting the amount of impregnation of the fluid composition. That is, when the solvent-spinning cellulose-based fibers are thickened, the number of cellulose-based fibers is reduced and the surface area is reduced at the same apparent weight, and the hydrophilicity of the resulting antimicrobial nonwoven fabric sheet is lowered. On the contrary, when the cellulose fiber is made thinner, the hydrophilic property of the antibacterial nonwoven fabric sheet is increased. In addition, with regard to tactile sensation, it becomes rough by thickening the cellulose-based fiber.

For example, when the blending ratio of the antibacterial EVOH-containing fiber and the solvent spinning cellulose fiber is 60:40 and the ethylene component of the antibacterial ethylene-vinyl alcohol copolymer is 50 mol% and the degree of saponification is 98% In the application of a fluid sheet (in particular, a face mask) (described later) in which an antimicrobial nonwoven fabric sheet to be used and a fluid composition containing a cosmetic material are integrated, the ratio of the thickness of the antimicrobial EVOH containing fibers to the solvent spinning cellulose fibers is in the range of 0.3 to 3.0 , And more preferably in the range of 0.3 to 2.0.

The fiber length of the antibacterial EVOH-containing fiber and the solvent-spun cellulose-based fiber is preferably in the range of 5 to 60 mm. If the fiber length of the antibacterial EVOH-containing fiber and solvent spinning cellulosic fiber is too long, it is difficult to uniformly bond the fibers together. Particularly, when the entanglement of the two fibers is insufficient, the uniformity of the antibacterial nonwoven fabric sheet becomes insufficient, However, this is undesirable because a problem arises that the efficiency of absorption and release of the fluid composition is lowered. If the fiber length of the antibacterial EVOH-containing fiber and the solvent-spun cellulose-based fiber is too short, it is not easy for fibers to separate from the antimicrobial nonwoven fabric sheet, and flexibility and stretchability are lowered. From this point of view, the fiber length of the antimicrobial EVOH-containing fiber and the solvent spinning cellulose-based fiber used in the present invention is preferably 5 to 60 mm, more preferably 10 to 50 mm. The ratio of the fiber length of the solvent-spinning cellulose fiber to that of the antibacterial EVOH-containing fiber is preferably 0.5 to 2, more preferably 0.8 to 1.5.

In the present invention, the antimicrobial EVOH-containing fiber and the solvent-spun cellulose-based fiber are homogeneously mixed and then formed into a web, and entangled by water entanglement to obtain a desired antimicrobial nonwoven fabric sheet. A direct method such as a melt blow method, a dry method using a staple fiber, a card method, an air laid method, or the like, or a wet method. Among them, as the method of producing the antibacterial nonwoven fabric sheet of the present invention, the dry method is most suitable because mixing of fibers and securing a space for impregnating the fluid composition can be more easily carried out. As the staple fiber web in this case, a random web, a semi-random web, a parallel web, a cross web, and the like are preferably used. In forming the web, it is preferable that the antimicrobial EVOH-containing fiber and the solvent-spinning cellulose-based fiber are mixed with each other by the above-mentioned mixing ratio.

In the antimicrobial nonwoven fabric sheet of the present invention, it is preferable that the surface has irregularities. As described above, by subjecting the obtained webs to entanglement, the constituent fibers can be entangled with each other and the irregularities can be formed on the surface. This unevenness is formed on the surface of the antimicrobial nonwoven fabric sheet by carrying out the production under predetermined conditions at the time of water entanglement. This makes it possible to keep the fluid composition in the recesses on the surface of the antibacterial nonwoven fabric sheet as well as the voids in the nonwoven fabric. Therefore, it is possible to maintain a large amount of cosmetics on the surface without necessarily thickening the antibacterial nonwoven fabric sheet. At this time, the entire fiber is absorbed from the water stream, and a part of the solvent spinning cellulose fiber which is easy to move by the force of the water stream extends in the water flow direction, that is, the height direction of the convex portion, The antimicrobial EVOH-containing fiber showing oil repellency is particularly difficult to move in the height direction of the convex portion due to the hydrophobicity and rigidity of the core portion when the ultrafine composite fiber with the hydrophobic resin is used. Therefore, As shown in Fig. Since these fibers are basically mixed with each other, the antibacterial nonwoven fabric sheet of the present invention is compatible with hydrophilicity and lipophilicity, and can retain both hydrophilic and lipophilic fluid compositions in the unevenness. In addition, the fluid composition retained here does not enter the tissue of the nonwoven fabric, and therefore, the fluidized-bed sheet in which the antimicrobial nonwoven fabric sheet of the present invention and the fluid composition containing the cosmetic agent are integrated is characterized in that cosmetics are present on the surface of the antibacterial nonwoven fabric sheet It is very easy to transit to the skin and exhibits excellent transitability to the skin. Furthermore, even when the cosmetic material is present in the irregularities on the surface of the antibacterial nonwoven fabric sheet, since the fibers themselves have both hydrophilic and lipophilic properties, the cosmetic material does not flow down.

It is preferable that the above-described concavo-convexity is such that the difference in height between the concave and convex portions is in the range of 0.1 to 0.4 mm and is continued in a predetermined direction at a pitch of 0.04 to 0.5 mm. If the height difference is less than 0.1 mm, the surface of the nonwoven fabric becomes too smooth, and the fluidity composition can not be retained by using the surface unevenness. Further, since the entire surface is in contact with the skin, it is unfavorable because it causes a sense of stickiness and stickiness when worn. When the difference in height is more than 0.4 mm, the portion retaining the fluid composition becomes large, so that the amount of the solution to be packed is improved. However, the ratio of the solvent spinning cellulose fibers tends to be high near the tip of the convex portion, The amount of the water-absorbing agent depends on the property of the solvent-spinning cellulose-based fiber, and therefore the liquid-absorbing capacity is improved and the liquid-repellency is lowered. Further, the smoothness of the surface is impaired and the feel is deteriorated and the feeling of wearing is lowered, which is not preferable. When the pitch is less than 0.04 mm, the concave portion becomes so narrow that the fluid composition containing the cosmetic material can not enter, which makes it difficult to effectively use the surface irregularities to maintain the fluid composition, which is not preferable. On the other hand, if the pitch exceeds 0.5 mm, the distance between the fibers constituting the convex portion becomes too wide, which makes it difficult to keep the fluid composition in the concave portion.

The irregularities on the surface of the non-woven fabric described above can be treated with a web in which the fibers have been entangled with each other in advance by flow entanglement. The pre-processed water flow impregnation is a process in which the web is extruded from a nozzle plate in which nozzles having a nozzle diameter of 0.08 to 0.2 mm and a pitch of 0.4 to 1 mm are arranged in one to three rows on a support having a metal porous plate or a woven structure, More preferably 2 to 4 MPa, and the treatment is carried out once or plural times.

It is preferable that the irregularities of the surface of the nonwoven fabric described above are formed by water flow treatment on the textile weave structure of the fibers in at least the last treatment of the water entrainment treatment. It is preferable to use a monofilament having a warp and weft of 0.01 to 1 mm in diameter and more preferably 0.02 to 0.5 mm and a thickness of 0.1 to 1 mm as a support of a weave structure . If the diameter of the monofilament is more than 1 mm, the fibers move to the periphery at the point where the warp yarn is present on the weft yarn, and holes are opened on the surface of the nonwoven fabric, and the smoothness of the surface is inferior. From the nozzle formed with an orifice having a pore diameter of 0.05 to 0.3 mm, more preferably 0.08 to 0.2 mm at an interval of 0.4 to 1 mm from the upper side of the weave structure, a pillar of water of 6 to 15 MPa, more preferably of 8 to 10 MPa Type water stream may be sprayed onto the web that has been subjected to the previous step.

By such a flow entanglement treatment, an antibacterial nonwoven fabric sheet having surface irregularities suitable for the maintenance of the fluid composition can be obtained.

As described later, the antibacterial nonwoven fabric sheet of the present invention can be preferably used by integrating it with water to form a hydrated sheet or integrating it with a fluid composition containing a cosmetic material to prepare a fluidized bed sheet. When the antimicrobial nonwoven fabric sheet of the present invention is used as a fluidized bed sheet, the copolymer composition of the ethylene-vinyl alcohol copolymer used in the present invention is controlled according to the polarity of the fluid composition containing the cosmetic, .

That is, in the case of using the above-mentioned fluid-form composition of lipophilic nature, it is preferable to use a copolymer having a high ethylene composition and a copolymer having a low ethylene composition when a hydrophilic composition is used. The hydrophilicity can be controlled by the same degree of saponification. It is also possible to control not only the degree of saponification but also the affinity with various fluids by the type of ester of un-saponified or the functional group of hydroxyl group.

Also, the impregnability can be increased by adjusting the ratio of the solvent-spinning cellulose-based fibers. That is, in the case of using a lipophilic fluid composition, it is preferable to lower the ratio of the solvent spinning cellulose fibers, or to increase the ratio of the solvent spinning cellulose fibers when a hydrophilic fluid composition is used.

The actual impregnation property varies depending on the viscosity of the fluid composition and the like. However, considering the balance with the tactile property and the liquid retention property, the copolymer impregnated with the ethylene-vinyl alcohol copolymer and / or the ratio of the solvent spinning cellulose fiber .

The antifungal EVOH-containing fiber and the solvent-spinning cellulose-based fiber having such properties are uniformly mixed to form a single layer, and then made into a water entangled nonwoven fabric having a void ratio of 80 to 95% , It is possible to make both the oily component and the water-soluble component, which are lightweight and highly balanced in hydrophilicity and lipophilicity as a whole, to be absorbed to the same extent and easy to release.

The antimicrobial nonwoven sheet of the present invention is capable of following a surface having a complicated shape due to the flexibility, in particular, the flexibility in the wet state, but this is related to the stress at 50% wet stretching in at least one direction of the nonwoven fabric And it is preferable that this value is 500 g / 50 mm or less. More preferably not more than 400 g / 50 mm, and still more preferably not more than 300 g / 50 mm. If this value exceeds 500 g / 50 mm, it becomes difficult for the base material to follow the unevenness of the face, and it becomes difficult to supply cosmetics to the whole face, which is not preferable. On the other hand, when the stress at the time of 50% wet stretching becomes less than 100 g / 50 mm, for example, in a state where the nonwoven fabric is not interlaced or the interlaced insufficiently is present, Or poor handling properties may occur. Therefore, it is not suitable for the antibacterial nonwoven fabric sheet of the present invention.

The apparent weight of the antibacterial nonwoven fabric sheet of the present invention is preferably in the range of 30 to 100 g / m 2 from the viewpoint of adhesion to the skin and absorbency, particularly preferably in the range of 40 to 70 g / m 2. When the apparent weight is less than 30 g / m 2, the absolute fiber amount is small and the amount of the fluidity composition capable of absorbing and retaining the fibers is extremely small, which is not preferable. If it is more than 100 g / m 2, the fiber amount becomes too large and the thickness of the antimicrobial nonwoven fabric sheet becomes too thick.

The apparent density of the antibacterial nonwoven fabric sheet of the present invention is not particularly limited, but is preferably 0.03 to 0.20 g / cm3, more preferably 0.05 to 0.17 g / cm3, still more preferably 0.06 to 0.15 g / And preferably 0.08 to 0.12 g / cm &lt; 3 &gt;. If the apparent density is too low, the liquid retaining ability of the antimicrobial nonwoven fabric sheet is lowered, and liquid leakage is likely to occur in handling during use. On the other hand, if the apparent density of the antimicrobial nonwoven fabric sheet is too high, the amount of the liquid absorbed decreases.

The thickness of the antibacterial nonwoven fabric sheet of the present invention is not particularly limited, but is preferably 100 to 3000 占 퐉, more preferably 200 to 2000 占 퐉, still more preferably 300 to 1500 占 퐉, still more preferably 400 to 1200 占 퐉 Mu] m, particularly preferably 500 to 1000 [mu] m.

The antimicrobial nonwoven fabric sheet of the present invention is required to simultaneously secure the desired liquid-absorbing property and liquid-repellency. In other words, the antibacterial nonwoven fabric sheet of the present invention is composed of fibers having both hydrophilic and lipophilic properties as constituent fibers, so that the liquid having both properties is retained by being absorbed and adsorbed. It can be considered that the antibacterial EVOH-containing fiber portion is retained, and the hydrophilic component is partially retained in the antibacterial EVOH-containing fiber and is mostly retained in the solvent spinning cellulose-based fiber. These liquids are retained on the surface of the fiber and can not be directly held on the surface of the fiber because the amount thereof is more than the above amount. A fiber gap formed between the fibers of the same kind (between the antibacterial EVOH-containing fibers or the solvent- The amount of the liquid absorbed by the nonwoven fabric constituting fibers can be secured. Thus, for the sake of convenience, the porosity is used to clarify the presence of the voids in the liquid described herein. The antibacterial nonwoven fabric sheet of the present invention preferably has a porosity of 80 to 95%. And more preferably 85 to 93%. When the porosity exceeds 95%, the interfiber distance becomes too large, and the fluid composition can not be held by the hydrophilic part of the fiber, which is not preferable. If it is less than 80%, the fiber-to-fiber distance is too narrow, and the fluid composition can not enter into the nonwoven fabric, and the amount of the absorbed liquid becomes small, which is not preferable.

<Liquid soap sheet, face mask>

The present invention relates to a fluidized-bed sheet which is excellent in antiseptic and antibacterial properties without containing parabens and which is soft and has a good feel and is in a state impregnated with a fluid composition containing a cosmetic such as a cosmetic, A face mask is also provided. That is, the present inventors have found that an antibacterial EVOH-containing fiber comprising a specific antimicrobial ethylene-vinyl alcohol copolymer as a component is entangled together with a solvent-spinning cellulose fiber to form an antibacterial nonwoven fabric sheet capable of absorbing a fluid composition, In the fluidized sheet having the antibacterial nonwoven fabric sheet integrated with the fluid composition, the return of the fluid composition can be rapidly accelerated by pressing with the finger while the fluid composition containing the cosmetic composition such as serum is impregnated I found out what I could do.

In the fluid-sealed sheet of the present invention, the fluid composition may be water (in this case, referred to as a "function sheet") and may contain a cosmetic material. When a flowable composition containing a cosmetic is used, it can be preferably used in a skin care sheet, and particularly, it is preferably used in a face mask. That is, the antibacterial nonwoven fabric sheet of the present invention is useful for absorbing and using a fluid composition, for example, a surface material such as a napkin or a diaper, a body fluid absorbent sheet (or sheet for skin cleansing) such as a diaper liner, A fluid composition containing a cosmetic ingredient, a pharmaceutical composition and the like is immersed in the antibacterial nonwoven fabric sheet of the present invention as described above, Such as a face mask, a make-up removing sheet or a cleansing sheet, a body cleansing sheet (such as a stitching sheet or an oil removing sheet), a cooling sheet, a medicinal or therapeutic sheet Sheet, wet cloth, etc.) and the like, and it is preferable that the return of the fluid composition It is particularly preferable to use it in a face mask.

The fluid-tight sheet of the present invention may be a sheet to be used by impregnating the fluid composition at the time of use, or may be a sheet (so-called wet sheet) used in advance by impregnating with a fluid composition.

In the application for impregnating the antimicrobial nonwoven fabric sheet of the present invention with the fluid composition, the fluid composition is not particularly limited. Aqueous fluid compositions such as water, aqueous solutions and aqueous emulsions, organic solvents, solutions containing them as a medium, and mixtures thereof. Also, a fluid composition in which various solids, liquids, and gases that are dissolved or dispersed well are dissolved and / or dispersed in these fluid compositions are also preferably used. An antibacterial nonwoven fabric sheet excellent in functionality can be obtained by a fluid composition in which various active ingredients are dissolved and / or dispersed. The fluid composition also includes a solution or dispersion (cosmetics, milky lotions, essences, etc.) containing an active ingredient such as a cosmetic ingredient or a medicinal (efficacy) ingredient. Among them, a hydrophilic fluid composition containing an aqueous fluid composition or a polar organic solvent-containing fluid composition is advantageous from the standpoint of impregnation, and is also advantageous in terms of safety to human body. Particularly, the aqueous fluid composition is most advantageous from the viewpoint of liquid retentivity. The polar organic solvent includes various organic solvents having a polar functional group. Examples of the polar functional group include a hydroxyl group, an aldehyde group, a carboxyl group, an alkoxycarbonyl group, an ether group, a carbonyl group, an amino group, a nitro group and a thio hydroxyl group. Examples of the hydrophilic fluid composition include water, lower aliphatic alcohols (e.g., C _1-6 alkyl alcohols such as ethanol and isopropanol), alkylene glycols (e.g., ethylene glycol, diethylene glycol , Propylene glycol, etc.) and the like. It is also possible to use unsaturated higher fatty acids (for example, oleic acid, oleyl alcohol, etc.), animal or vegetable oils (for example, jojoba oil, olive oil, palm oil, camellia oil, macadamia nut oil, avocado oil, corn oil, (For example, liquid paraffin, polybutene, silicone oil, etc.), synthetic oil (for example, synthetic ester, synthetic polyether oil, etc.) Is used.

These fluid compositions may be used alone or in combination of two or more. For example, a liquid oil as an additive (oil) may be used in combination with a hydrophilic solvent such as water or ethanol. Of these fluid compositions, water, a lower alcohol or a mixture thereof is usually used, preferably water and / or ethanol, more preferably only water is used. For example, when water and a lower alcohol (particularly, ethanol) are used in combination, the ratio of water / lower alcohol = 100/0 to 30/70, preferably 100/0 to 50/50, Is preferably 100/0 to 70/30, and particularly preferably 99/1 to 80/20.

The fluid composition may contain conventional additives such as moisturizers or emolients (e.g., dipropylene glycol, 1,3-butylene glycol, polyethylene glycol, polyoxyethylene-polyoxypropylene block copolymer, poly Polyoxyethylene sorbitan fatty acid esters, polyoxyethylene sucrose fatty acid esters, glycerin, sodium hyaluronate, polyoxymethyl glycoside, polyvinyl alcohol, polyvinyl pyrrolidone, water-soluble cellulose ethers (methyl cellulose, hydroxyethyl cellulose, hydroxy A surfactant, an astringent, an enzyme, a coolant, a bactericide or an antibacterial agent, an emollient (for example, salicylic acid or a derivative thereof, lactic acid, urea or the like), an antioxidant Etc.), antioxidants (for example, tocopherol or its derivatives, (For example, ascorbic acid or its derivatives, cysteine, placenta extract, arbutin, kojic acid, lucinol, eragic acid, chamomile extract, etc.), antiperspirants (For example, allantoin, guaiazulene, glycyrrhizic acid, or a salt thereof), an anti-inflammatory agent (e.g., (For example, peanut, rosemary, clove, etc.), vitamins (for example, glycyrrhizic acid or its salt,? -Aminocaproic acid, tranexamic acid, ibuprofen, (Such as vitamin A, vitamin B, vitamin C, vitamin D, vitamin E and vitamin K), amino acids (for example tryptophan and cysteine), cell activators (for example riboflavin, pyridoxine, nicotinic acid, pantothenic acid, - tocopherol, or derivatives thereof, Wichwi plant extracts such as extract etc.), flavors (for instance, there may be mentioned synthetic perfumes, essential oils, essential oil, etc.), etc. These additives include, may be used alone or in combination of two or more.

Among these additives, moisturizing agents, ultraviolet absorbers, surfactants, refreshing agents, enzymes, astringents, bactericides or antibacterial agents are generally used for the skin care sheet. Particularly, in the face mask (face pack), for example, a moisturizing agent, an emolient agent and the like may be mixed in a hydrophilic solvent. The total ratio of the moisturizing agent and the emollient is, for example, 0.1 to 50% by weight, preferably 1 to 30% by weight, more preferably 5 to 20% by weight in the solution.

The proportion of the above additives can be appropriately selected depending on the application. For example, the proportion of water or ethanol is usually 30 to 99% by weight, preferably 40 to 99% by weight, 95% by weight, more preferably 50 to 90% by weight.

The amount of the fluid composition to be impregnated is not particularly limited as long as a predetermined effect can be obtained and may be appropriately selected depending on the purpose of the user. For example, a fluid composition containing a hydrous functional sheet and a cosmetic composition provided by the present invention, In the case of the liquid-and-liquid sheet in which the sheets are integrated, 200 to 1000% by weight based on the weight of the substrate is preferable in terms of cost and performance.

In addition, in the fluid-absorbent sheet of the present invention comprising a fluid composition containing an antibacterial nonwoven fabric sheet and a cosmetic material, it is necessary that the antibacterial nonwoven fabric sheet has a high liquid-absorbing performance capable of maintaining a sufficient amount of cosmetic material. In the present invention, this is expressed using the liquid-absorbing speed and the liquid-pervaporation rate.

First, the antimicrobial nonwoven fabric sheet preferred for the sea water-containing sheet of the present invention is required to have excellent water-absorbing performance, and the preferable water-absorbing speed is 5 seconds or less. More preferably 3 seconds or less, still more preferably 2 seconds or less, particularly preferably 1.5 seconds or less. When the liquid-absorbing speed is more than 5 seconds, it is difficult to impregnate the fluid composition containing the cosmetic material, and in particular, when the fluid composition containing individual cosmetics is used in each household, the fluid composition is likely to flow down the surface As a result, the cosmetic material is not impregnated into the antimicrobial nonwoven fabric sheet, which is useless, which is not preferable. As a fluid composition containing a cosmetic, generally, an oily fluid composition tends to have a high viscosity, an aqueous fluid composition tends to have a low viscosity, and a low viscosity tends to increase a water absorption rate. Second, but not more than three seconds in the latter case.

The antimicrobial nonwoven fabric sheet preferable for the fluid-containing sheet using the fluid composition containing the cosmetic material needs to be able to supply a sufficient amount of cosmetic material to the skin. For this reason, it is necessary that the fluid composition containing the cosmetic composition has a higher liquid-solubility ratio as a ratio of the liquid-absorbent amount to the basis weight of the nonwoven fabric serving as an index of the liquid-absorbent amount to the antibacterial nonwoven fabric sheet, It is more than 1000%. In order to impregnate the flowable composition containing the desired amount of cosmetic material in the antimicrobial nonwoven fabric sheet having a low water solubility, it is necessary to prepare various antimicrobial nonwoven fabric sheets whose basis weight or composition is changed according to the impregnation amount. , It is possible to cope with various impregnation amounts in one kind.

In addition, when the fluid-containing sheet of the present invention is applied to the face, the fluid composition containing the cosmetic material flows along the face in the nonwoven fabric and eventually drops from the jaw to cause troubles such as contamination of medical clothes It is important. In the present invention, this performance is expressed by the liquid flow rate, and it is preferable that this value is 3.5% or less. More preferably, it is 3% or less, and more preferably 2.5% or less.

It is very important that the fluid composition containing a cosmetic material which is impregnated in a large amount in the antibacterial nonwoven fabric sheet and kept not to be dripped efficiently into the skin by the method as described above. In the present invention, this is expressed as the release rate, and the value is preferably 95% or more. If the release rate is less than 95%, effective cosmetic material is received in the fiber and can not be effectively used for skin. It is preferable that the rate at which the fluid composition containing the cosmetic material retained by the antimicrobial nonwoven fabric sheet is released is 95% or more.

Particularly, since the fluid-containing sheet of the present invention is well balanced in impregnation properties of the fluid composition containing the cosmetic, that is, in terms of the liquid-absorbing rate and the liquid-absorbing rate, the liquid infiltration rate and the release rate, It is possible to realize a liquid-pervious sheet which is excellent in fitability and can supply more sufficient cosmetic material to the skin.

The antimicrobial nonwoven fabric sheet of the present invention is usually impregnated with a fluid composition, but may be impregnated with the fluid composition at the time of use or impregnated with a fluid composition in advance. In the case of the former, there is an advantage that the user can use a liquid-containing sheet containing a cosmetic, for example, to make a liquid-containing sheet impregnated with a cosmetic of his or her own taste. In addition, since it can be supplied in a dry state, the package of the product can be simplified.

The antibacterial nonwoven fabric sheet may contain a cosmetic component or a medicinal (efficacy) component (for example, a moisturizing component, a cleansing component, a restricting component, a fragrant component, a whitening component, (For example, a face (e.g., a face, a face, a skin, a skin irritation-inhibiting component, etc.)) necessary for impregnating a body part of the body ) Of the cosmetics to cover them, and to have the role of attaching or resting the cosmetics and moving the cosmetics little by little to the skin side. The antimicrobial nonwoven fabric sheet is excellent in liquid retentivity and has appropriate rigidity or elasticity. When the fluid composition is impregnated, the restoration of compression and return of the fluid composition are quick, and in particular, the antibacterial nonwoven fabric sheet Is formed of a high elasticity fiber having a specific Young's modulus, the recoverability of the fluid composition is excellent and the thickness can be recovered quickly, so that it can be recovered in the same liquor condition as that at the uncompressed point in a short time.

Specifically, when the fluid composition is impregnated at 900 wt% with respect to its own weight, and a load of 260 g / cm &lt; 2 &gt; is applied and removed for one minute, the restoration against compression in the thickness direction is performed for 5 minutes More preferably 50 to 99% (for example, 60 to 95%), more preferably 65 to 90% (particularly 70 to 100%), 85%). If the degree of rotation is less than 35%, the fluid composition such as serum or the like can not sufficiently return to the pressing portion. In addition, the rotation can be measured in detail by the method described in the following embodiments.

With respect to the above-mentioned returning of the above-mentioned fluid composition, specifically, when a fluid composition is impregnated with 900 wt% of its own weight and a circular part having a diameter of 1.2 cm is loaded with 620 g for 1 minute to remove the fluid composition, (For example, 65 to 95%), more preferably 70 to 92% (particularly 80 to 90%) of the recovery rate may be 45% or more, for example, 50 to 99%, preferably 60 to 98% ) to be. When the recovery rate is too low, the fluid composition after pressurization is insufficient, and in the face mask, the serum can not sufficiently penetrate the skin. In addition, the recovery rate can be measured in detail by the method described in the following examples.

The antibacterial nonwoven fabric sheet is excellent in flexibility at the time of wetting and suitably matched so as to follow the skin such as the face. When used in the seawater-proof sheet of the present invention, the nonwoven fabric sheet has a 30% elongation at wettability according to JIS L 1913 , Preferably 1 to 8 N / 5 cm, more preferably 1.5 to 5 N / 5 cm, in at least one direction, cm, particularly preferably 2 to 4 N / 5 cm. Wet 30% If the stress is too small at the time of stretching, it is too hard to handle because it is stretched too much when attached to the skin such as the face, and if it is too large, the adhesion to the skin decreases. The stress at 30% elongation can be measured in detail by the method described in Examples to be described later.

When the fluid composition contains water, the function sheet of the present invention can add functions, for example, by containing at least one kind of the above-mentioned fluid composition or active ingredient in addition to water. These fluid compositions and active ingredients do not have to be water-soluble, but a high affinity with water can increase the homogeneity of the hydrous sheet and can also provide a fluid composition or an active ingredient with a function that can be impregnated into the antibacterial non- It is easy to do. In addition, it is advantageous to improve the homogeneity of the functional sheet as well as production efficiency by integrating the antimicrobial nonwoven fabric sheet together with water in the form of an aqueous solution, a dispersion, and an emulsion. In particular, the aqueous solution, aqueous dispersion and aqueous emulsion have high affinity with the solvent-spinning cellulose-based fibers of the antimicrobial nonwoven fabric sheet of the present invention and can be integrated at a higher concentration in the antimicrobial nonwoven fabric sheet, , And is also advantageous over production efficiency.

The fluid composition containing the cosmetic material to be used for the septum sheet of the present invention is in the form of, for example, a solution, a dispersion, an emulsion or the like. For example, water or at least one kind of the fluid composition. The cosmetic contains at least one substance having a cosmetic function, including the case where the cosmetic itself has fluidity and the cosmetic which is substantially free of fluidity in the form of solid or the like. When the cosmetic itself has fluidity, only the cosmetic may be integrated with the antimicrobial nonwoven fabric sheet as a fluid composition. Usually, the fluidity is enhanced by mixing with the other liquid, thereby enhancing the production efficiency and enhancing the release property. The liquid to be mixed with the cosmetic material has high affinity with the cosmetic material and can be integrated with the antimicrobial nonwoven fabric sheet at a higher concentration so that a high function is obtained and the homogeneity of the fluidic sheet in which the fluidic composition containing the cosmetic material and the antibacterial non- It is also advantageous in production efficiency. The function of the cosmetics to be used is not particularly limited, and cosmetics having various commonly known functions can be used singly or in combination.

As described above, the present invention also provides a face mask using a fluid sheet in which a fluid composition containing a cosmetic and an antibacterial nonwoven fabric sheet are integrated. The sheet produced by fusing a thermally adhesive component as in the above-described Patent Document 1 improves the shrinkage upon wetting but the whole sheet is hardened, and the stickiness to the skin is lowered. In addition, since the surface of the sheet is made of hydrophilic fibers as the main fibers, the fibers are impregnated into the fibers, so that they can not be sufficiently wiped off and released to the object. Further, sheets such as a face mask There arises a problem that the effective ingredient such as the serum can not be sufficiently released. The nonwoven fabric sheet described in the above-mentioned Patent Document 2 is excellent in flexibility and liquid retention. However, since the rigidity (rigidity) of the sheet is small and the face mask is brought into close contact with the face, (Cosmetics) is slow to return. Therefore, it is difficult to uniformly spread the serum on the entire face efficiently. Particularly in the face mask, although it is necessary to press the point where the serum is to be replenished or the point where it is difficult to contact tightly with the finger, in the conventional face mask, the face mask is closely attached to the target site, It was in an insufficient state. In addition, a face mask in which a layer formed of microfine fibers is arranged on the contact side of the skin, a face mask having a three-dimensional structure, and the like have been developed in order to improve the conformability of the face mask to the skin (face). However, even these face masks are not satisfactory in terms of the skin, and it is the present situation that the face mask which is pasted is pressed once with the finger repeatedly. Therefore, by repeating the action of pressing on the skin, the serum stored in the pressed portion is pushed out every time, and a state in which the serum is insufficient is promoted.

According to the present invention, there is also provided a face mask in which such conventional problems are solved. That is, as described above, the antibacterial nonwoven fabric sheet of the present invention can be produced by forming a nonwoven fabric capable of absorbing the fluid composition by using specific antimicrobial fiber and solvent spinning cellulose fiber, The rotation of the fluid composition is fast even when pressed with a finger in a state in which a liquid component such as a serum or the like is impregnated. In addition, even when the fluid composition is impregnated with a finger and pressed with a finger, the thickness is recovered quickly. Therefore, when used as a face mask, for example, it is possible to efficiently supply a serum to a desired site. Further, by using an ultrafine composite fiber having an initial portion formed of an ethylene-vinyl alcohol copolymer, flexibility, lyophobicity and shape stability can be improved.

Further, the antibacterial nonwoven fabric sheet of the present invention is particularly suitable as a cleansing sheet for fixing to skin such as a wet cloth as well as a face mask because of its excellent adhesion to the skin. For example, since the liquid-impermeable sheet of the present invention can easily calibrate a part that is not closely adhered, it can be adhered even to a fine gap such as a nose and can effectively penetrate the active ingredient of the liquid- .

Further, the sea water-containing sheet of the present invention is also suitable for a cleansing sheet, a skin cleansing sheet and the like. As described above, since the sheet of the present invention can adhere the sheet to the fine gaps of the face, the makeup (makeup cosmetic such as foundation, powder, lipstick, eye makeup, etc.) can be effectively removed. As described above, when used as a liquid-impregnated bio-coated sheet, it is important that the fluid-containing sheet of the present invention is usually antimicrobial because it is usually impregnated with a fluid composition and applied to the skin or the like of a living body. Further, the sea water-proof sheet of the present invention may be laminated with another layer, and for example, a non-porous film or sheet may be laminated on the side not in contact with the skin to promote absorption of the active ingredient.

Example

Hereinafter, the present invention will be described in more detail with reference to examples, but the present invention is not limited to these examples at all. The respective physical properties in this example were measured by the following methods.

[Radioactive]

In the spinning process in the manufacture of fibers, when spinning yarn is cooled and solidified and then pulled into a bobbin through a take-up roller, a yarn which can be taken without breaking is referred to as &quot; a: Quot; b: radioactive defect &quot;, and the case where a yarn breakage occurred at the single yarn level and fluff was generated was evaluated as radioactivity.

[Finnish]

And evaluated according to JIS L 1015 "Chemical fiber stay pool test method (8.5.1)".

[burglar]

And evaluated according to JIS L 1015 "Chemical fiber stay pool test method (8.7.1)".

[Shindo]

And evaluated according to JIS L 1015 "Chemical fiber stay pool test method (8.7.1)".

[Young's modulus]

Examples 7 to 11 and Comparative Examples 9 to 17 were evaluated in accordance with JIS L 1015 "Chemical fiber stay pool test method (8. 11)".

[Antimicrobial activity]

150 g of the antimicrobial nonwoven fabric sheet obtained in the Example or Comparative Example was charged into a bucket containing 20 liters of water at a temperature of 60 캜 and refined for 30 minutes and then rinsed for 30 minutes and dehydrated and dried. The antibacterial property of the nonwoven fabric sheet subjected to the refining treatment was tested according to JIS L 1902 &quot; Test method and antibacterial effect of textile products &quot;. The bactericidal activity value was calculated from the following equation by using Staphylococcus aureus and Pneumoniae bacterium (bacterial concentration 1/20 NB, amount of infusion solution: 0.2 ml) as the test bacteria and cotton as the non-processed specimen. Further, when the bactericidal activity value is 0 or more, it is considered that there is an antibacterial effect.

· Bacteriostatic activity value: value indicating the difference in the number of viable cells before and after the action time by logarithm

  Bacteriostatic activity = Log (A / B)

A = number of bacteria dispersed and recovered immediately after inoculation of the non-processed specimen

B = number of bacteria recovered after 18 hours of culturing of the processed specimen

[thickness]

The thickness of the antibacterial nonwoven fabric sheet obtained in the examples or comparative examples was measured in accordance with JIS L 1096 (Test method for fabric and knitted fabrics (8.5)). The thickness gauge was measured with a measurer 1 inch (diameter) and a load of 12 g / cm2 using a Dejimatic indicator manufactured by Mitutoyo Corporation.

[Apparent weight]

The apparent weight of the antimicrobial nonwoven fabric sheet obtained in the examples or comparative examples was measured in accordance with JIS P 8124 &quot; Paper and cardboard basis weight measuring method &quot;.

[Porosity]

The porosity (%) of the antimicrobial nonwoven fabric sheet obtained in the Example or Comparative Example was calculated from the following formula from the basis weight of nonwoven fabric (g / m 2), the specific gravity of fiber (g / cm 3) and the thickness of nonwoven fabric (cm).

Porosity (%) = 100 - {(nonwoven basis weight / fiber ratio / nonwoven thickness) / 100}

[touch]

The tactile sensation when the antimicrobial nonwoven fabric sheets obtained in Examples or Comparative Examples were contacted was evaluated by five subjects according to the following criteria.

<Evaluation Criteria>

X: Good touch

Y: The feel is a little bad

Z: I'm not feeling well

[Absorption rate]

The absorption speed of the antibacterial nonwoven fabric sheet obtained in the examples or comparative examples was measured in accordance with JIS L 1907 "Absorbency test method for fiber products (7.1.1 (dropping method))". A portion of the liquid was dropped from 1 cm above the non-woven fabric floating in the middle to the burette, and the time until the reflection of special light of the surface droplet was not observed was measured. The following Tests I and II were carried out by the dropping liquid.

Test I: Ion exchange water

Test II: NISSIN OIL REO GROUP CO., LTD.

[Liquid Percentage]

The laminating rate of the antibacterial nonwoven fabric sheet obtained in the examples or comparative examples was measured in accordance with JIS L 1907 "Absorbency test method for fiber products (absorbency method)". Measure the weight C (g) by cutting the specimen 5 cm in length and width. The test piece was immersed for 30 seconds in a fluid composition containing a cosmetic (Dislorol lotion for discrete manufacturing, manufactured by KK). Thereafter, one side of the test piece was gripped and taken out from the liquid, and the weight D (g) after 10 seconds and the weight E (g) after one minute were measured.

The water retaining ratio F (%) is calculated by the following formula.

Liquid Reflux F (%) = {(E - C) / C} 100

[Emission rate]

The release rates of the antibacterial nonwoven fabric sheets of Examples 1 to 6 and Comparative Examples 1 to 8 were measured as follows. The sample having the above-mentioned liquid permeability is cut into a piece of filter paper (correction filter paper No. 2) which is cut to a length of 10 cm and about 2.5 g, and 2 kg of weight is placed thereon and left for 1 minute. After one minute, the sample is taken out and the increasing weight H (g) of the filter paper weight is measured.

The release rate G (%) of the fluid composition containing the cosmetic composition was calculated by the following formula.

G (%) = {H / (E - C)} 100

[reinstatement]

The fabric restoration of the antibacterial nonwoven fabric sheets of Examples 7 to 11 and Comparative Examples 9 to 17 was measured as follows. A sample cut into 5 cm in the MD direction and 5 cm in the CD direction was prepared and impregnated with 900% of the sample solution ("Pre-shell essence lotion NA" manufactured by Kanebo Cosmetics Co., Ltd.) The sample 3 was spread on an acrylic plate (measurement table) 4, and the initial thickness was measured with a laser displacement meter 1. Then, Next, a load (2) of 260 g / cm &lt; 2 &gt; was placed on the center of the fabric (nonwoven fabric) for 60 seconds and the displacement was measured immediately after the load was removed and after 300 seconds. (%) Of the fabric when the thickness of the fabric before the measurement is I, the thickness immediately after removing the load is J, and the thickness after 300 seconds after removing the load is K.

(%) = [(I - K) / (I - J)] 100

[Return]

The restoration of the antimicrobial nonwoven fabric sheets of Examples 7 to 11 and Comparative Examples 9 to 17 to the fabric was measured as follows. A sample cut into 5 cm in the MD direction and 5 cm in the CD direction was prepared, and the sample was impregnated with 900% of the essence ("Pre-shell essence lotion NA" manufactured by Kanebo Cosmetics Co., Ltd.) The sample 3 was spread on an acrylic plate (measurement table) 14 and placed thereon. A load 12 of 620 g was placed for 60 seconds in a center portion of a circle having a diameter of 1.2 cm and the serum immediately after removing the load The width of the missing part was measured. In addition, the load was removed and the width of the portion without the serum after 300 seconds was measured. L (%) immediately after removing the load was taken as L, and when the load was removed, and the width of the portion without the uncolored liquid after 300 seconds was taken as M, the liquid return to the fabric was obtained according to the following formula.

(%) = [(L - M) / L] × 100

[Uneven height difference]

The height difference between the concave portion and the convex portion on the surface of the antibacterial nonwoven fabric sheet obtained in the Example or Comparative Example was measured using a microscope VH-6300 manufactured by CHIENCE INCORPORATED. The cross section of the nonwoven fabric was observed, Point measurement and averaging.

[Wet stress at 50% elongation]

The stress at the time of 50% wet stretching of the antimicrobial nonwoven fabric sheets of Examples 1 to 6 and Comparative Examples 1 to 8 was measured using an Autograph AGS-50D manufactured by Shimadzu Corporation under the conditions of a sample width of 50 mm, a measuring length of 100 mm, When the tensile test is carried out in mm / min, the strength value at the time when the elongation reaches 50% is shown.

[Wet 30% stress at extension]

The stress at 30% wet stretching of the antibacterial nonwoven fabric sheets of Examples 7 to 11 and Comparative Examples 9 to 17 was measured according to JIS L 1913 "General Nonwoven Fabric Test Method (Test for Tensile Strength and Elongation at Wetting)" In accordance with the method described in &quot; Concretely, the sample was placed in water at 20 ° C ± 2 ° C until it settled to its own weight or immersed in water for 1 hour or more, and then taken out from the immersion liquid, and the stress was rapidly measured at 30% elongation.

(Reference Example 1: Individual fiber)

(1) A silver-based inorganic antibacterial microparticle ("AV10D" manufactured by Sinanen Zeomix Co., Ltd., average particle diameter: 2.5 μm, average particle diameter: 2.5 μm, Approximately cubic) was blended and discharged at a spinning temperature of 240 占 폚 by a melt extruder. The discharged yarns were cooled and solidified, and then drawn into a bobbin through a take-up roller.

(2) Then, the cocoon was thermally stretched at a stretching magnification of 2 at a stretching temperature of 80 DEG C, and an emulsion was applied to the emulsion bath, followed by crimping using a crimping apparatus such as a star-shaped crimping apparatus. Following the crimp-imparting treatment, the fibers were dried by hot air at 100 占 폚 and then cut into 51 mm to obtain antibacterial EVOH-containing fibers (1.7 dtex, 51 mm length, circular section). Both radioactive and stretchable properties were good, the strength was 2.4 cN / dtex, and the elongation was 33%. The evaluation results are shown in Table 1.

(Reference Example 2: Composite fiber)

(1) A silver-based inorganic antibacterial microparticle ("AV10D" manufactured by Sinanen Zeomix Co., Ltd., average particle diameter: 2.5 μm, average particle diameter: 2.5 μm, Approximately cubic) was used as a core, and a thermoplastic polymer composed of polyethylene terephthalate was used as a core. Using a composite spinning device composed of a melt extruder, 50: 50 weight ratio. The discharged yarn was cooled and solidified, and then wound on a bobbin through a take-up roller.

(2) Then, the cocoon was thermally stretched at a stretching magnification of 2 at a stretching temperature of 80 DEG C, and an emulsion was applied to the emulsion bath, followed by crimping using a crimping apparatus such as a star-shaped crimping apparatus. After the crimp-imparting treatment, the fibers were dried by hot air at 100 占 폚 and cut to 51 mm to obtain antibacterial EVOH-containing fibers (3.4 dtex, 51 mm length, Mu m). Both radial and stretchability were good, the strength was 2.9 cN / dtex, and the elongation was 27%.

(Reference Example 3: Composite fiber)

(1) The coiled product of Reference Example 2 was thermally stretched at a stretching magnification of 2 times at a stretching temperature of 80 占 폚, emulsified with an oil bath, and then cut into 10 mm to obtain antibacterial EVOH-containing fibers shown in Table 1 below 3.4 dtex, 10 mm length, 50: 50 in the ratio of the initial weight to the core, 12.5 탆 in the diameter of the core section). Both radial and stretchability were good, the strength was 2.9 cN / dtex, and the elongation was 27%.

(Reference Example 4: single fiber)

To 99 parts by weight of an ethylene-vinyl alcohol copolymer having an ethylene content of 85 mol%, silver-based inorganic antibacterial microparticles ("AV10D" manufactured by Sinanen Zeomix Co., Ltd., average particle size of 2.5 μm, approximately cubic ) Was blended in the same manner as in Reference Example 1 to obtain an antibacterial EVOH-containing fiber (1.7 dtex, 51 mm length, circular section). Both radioactive and stretchable properties were good, the strength was 3.1 cN / dtex, and the elongation was 38%.

(Reference Example 5: Composite fiber)

(3.4 dtex, length 51 mm, weight ratio of the initial weight: 50: 1) was prepared in the same manner as in Reference Example 2 except that the amount of resin discharged, the drawing speed and the drawing rate were adjusted so that the degree of fineness was 5.5 dtex. 50, a circular cross section, and a diameter of the deep portion of 16.0 占 퐉). Both radial and stretchability were good, the strength was 2.9 cN / dtex and the elongation was 36%.

(Reference Example 6: Composite fiber)

(1) An ethylene-vinyl alcohol copolymer having an ethylene content of 44 mol% as an initial portion and a thermoplastic polymer composed of polyethylene terephthalate as a core portion were melt-extruded using a composite spinning device comprising a melt extruder, At a temperature of 280 DEG C and an initial weight ratio of 50:50. The discharged yarn was cooled and solidified, and then wound on a bobbin through a take-up roller.

(2) Then, the cocoon was thermally stretched at a stretching magnification of 2 at a stretching temperature of 80 DEG C, and an emulsion was applied to the emulsion bath, followed by crimping using a crimping apparatus such as a star-shaped crimping apparatus. After the crimp-imparting treatment, the fibers were dried by hot air at 100 캜 and then cut into 51 mm to obtain EVOH-containing fibers (3.4 dtex, 51 mm length, ). Both radioactive and stretchable properties were good, the strength was 3.6 cN / dtex and the elongation was 38%.

[Example 1]

A card web having an apparent weight of about 60 g / m 2 mixed with 30% by weight of solvent-spun cellulose fibers (lyocell production lyocell, 1.7 dtex, 38 mm length) of 70% by weight of the antibacterial EVOH containing fibers of Reference Example 1 did.

Then, a water jet was jetted onto the card web, and entanglement treatment was carried out to obtain a water entangled nonwoven fabric having an apparent weight of 60 g / m 2 to obtain an antibacterial nonwoven fabric sheet of the present invention. In the water entrainment treatment, a nozzle having an orifice of 0.1 mm in diameter was formed at intervals of 0.6 mm in the width direction of the web, and a water pressure of 6 MPa was injected in two front and back sides for entanglement. The porosity of the obtained antimicrobial nonwoven fabric sheet was 92%. The results of each evaluation are shown in Table 1.

This sheet had sufficient liquid retention and releasability, and had a good touch.

[Example 2]

A card web having an apparent weight of about 60 g / m 2 mixed with 30% by weight of solvent-spun cellulose fibers (lyocell manufactured by Lenzinger Co., Ltd., 1.7 dtex, 38 mm length) of 70% by weight of the antibacterial EVOH containing fibers of Reference Example 2 did.

Then, a water jet was jetted onto the card web, and entanglement treatment was carried out to obtain a water entangled nonwoven fabric having an apparent weight of 60 g / m 2 to obtain an antibacterial nonwoven fabric sheet of the present invention. In the water entrainment treatment, a nozzle having an orifice of 0.1 mm in diameter was formed at intervals of 0.6 mm in the width direction of the web, and a water pressure of 6 MPa was injected in two front and back sides for entanglement. The porosity of the obtained antimicrobial nonwoven fabric sheet was 95%. The results of each evaluation are shown in Table 1. This sheet had sufficient liquid retention and releasability, and had a good touch.

[Example 3]

The antimicrobial EVOH-containing fibers of Reference Example 3 were dispersed in water to 70 wt% and solvent-spun cellulose fibers (lycoric lecithin lycoric acid, 1.7 dtex, 12 mm length) were changed to 30 wt% g / m &lt; 2 &gt;.

Subsequently, a water jet was sprayed on the wet-laid nonwoven fabric and the entanglement treatment was carried out to obtain a water-entangled nonwoven fabric having an apparent weight of 60 g / m 2 to obtain an antibacterial nonwoven fabric sheet of the present invention. In the water entrainment treatment, a nozzle having an orifice of 0.1 mm in diameter was formed at intervals of 0.6 mm in the width direction of the web, and a water pressure of 6 MPa was injected in two front and back sides for entanglement. The porosity of the obtained antimicrobial nonwoven fabric sheet was 90%. The results of each evaluation are shown in Table 1. This sheet had sufficient liquid retention and releasability, and had a good touch.

[Example 4]

A card web having an apparent weight of about 60 g / m 2 mixed with 30% by weight of solvent-spun cellulose fibers (lyocell production lyocell, 1.7 dtex, 38 mm length) of 70% by weight of the antibacterial EVOH-containing fiber of Reference Example 5 was produced did.

Then, a water jet was jetted onto the card web, and entanglement treatment was carried out to obtain a water entangled nonwoven fabric having an apparent weight of 60 g / m 2 to obtain an antibacterial nonwoven fabric sheet of the present invention. In the water entrainment treatment, a nozzle having an orifice of 0.1 mm in diameter was formed at intervals of 0.6 mm in the width direction of the web, and a water pressure of 6 MPa was injected in two front and back sides for entanglement. The porosity of the obtained antimicrobial nonwoven fabric sheet was 97%. The results of each evaluation are shown in Table 1. This sheet had sufficient liquid retention and releasability, and had a good touch.

[Example 5]

A water jet was sprayed onto the card web obtained in Example 2 and entangled to obtain a water entangled nonwoven fabric having an apparent weight of 60 g / m 2 to obtain an antimicrobial nonwoven fabric sheet of the present invention. In the water entrainment treatment, a nozzle having an orifice of 0.15 mm in diameter was formed at intervals of 0.6 mm in the width direction of the web, and water pressure of 8 MPa was injected in two front and back sides for entanglement. The porosity of the obtained antimicrobial nonwoven fabric sheet was 99%. The results of each evaluation are shown in Table 1. This sheet had sufficient liquid retentivity and emissivity, while the feel was somewhat inferior.

[Example 6]

Except that 10% by weight of the antibacterial EVOH-containing fibers obtained in Reference Example 2, 90% by weight of the solvent-spinning cellulose fibers were blended, and a card web having an apparent weight of 60 g / m 2 was prepared. To obtain a nonwoven fabric sheet. The porosity of the obtained antimicrobial nonwoven fabric sheet was 88%. The results of each evaluation are shown in Table 1. This sheet had liquid retention and emissivity slightly inferior but had a good touch.

[Comparative Example 1]

(Average particle diameter of 0.008 mu m, approximately cubic shape) in which silver ion-supported silver ion-carrying inorganic-based antimicrobial microparticles (manufactured by Sinanen Zeomix Co., Ltd.) was blended with the inorganic ion exchanger in the same manner as in Reference Example 2, It could not be reliably relied on.

[Comparative Example 2]

(Average particle size of 25 mu m, approximately cubic shape) made of silver-based inorganic antibacterial microparticles in which silver ion was supported on an inorganic ion exchanger was prepared in the same manner as in Reference Example 2. However, It could not be reliably relied on.

[Comparative Example 3]

To 99 parts by weight of an ethylene-vinyl alcohol copolymer having an ethylene content of 8 mol%, silver-based inorganic antibacterial microparticles ("AV10D" manufactured by Shinaton Zeomix Co., Ltd., average particle size of 2.5 μm, ) Were mixed in the same manner as in Reference Example 1, but the preparation could not be stably performed due to radioactive defects.

[Comparative Example 4]

A card web having an apparent weight of about 60 g / m 2 mixed with 30% by weight of solvent-spun cellulose fibers (lyocell manufactured by Lenzinger Co., Ltd., 1.7 dtex, 38 mm length) of 70% by weight of the antibacterial EVOH- did.

Subsequently, a water jet was jetted onto the card web, and entanglement treatment was carried out to obtain a water entangled nonwoven fabric having an apparent weight of 60 g / m 2 to obtain an antibacterial nonwoven fabric sheet. In the water entrainment treatment, a nozzle having an orifice of 0.1 mm in diameter was formed at intervals of 0.6 mm in the width direction of the web, and a water pressure of 6 MPa was injected in two front and back sides for entanglement. The porosity of the obtained antimicrobial nonwoven fabric sheet was 93%. The results of each evaluation are shown in Table 2. This sheet had good tactile sensation, but was poor in liquid retentivity, inferior releasability, and slow in absorption rate.

[Comparative Example 5]

An antibacterial nonwoven fabric sheet was obtained in the same manner as in Example 1 except that 100 wt% of the antibacterial EVOH-containing fibers obtained in Reference Example 2 were used to prepare a card web having an apparent weight of 60 g / m 2. The porosity of the obtained antimicrobial nonwoven fabric sheet was 96%. The results of each evaluation are shown in Table 2. This sheet had excellent liquid retentivity and releasability, but was difficult to use because of its low absorption rate, and was slightly inferior in touch.

[Comparative Example 6]

A card web having an apparent weight of about 60 g / m &lt; 2 &gt; prepared by mixing 70% by weight of the antibacterial EVOH-containing fibers of Reference Example 2 and 30% by weight of cotton fibers manufactured by Marusan Co.,

Subsequently, a water jet was jetted onto the card web, and entanglement treatment was carried out to obtain a water entangled nonwoven fabric having an apparent weight of 60 g / m 2 to obtain an antibacterial nonwoven fabric sheet. In the water entrainment treatment, a nozzle having an orifice of 0.1 mm in diameter was formed at intervals of 0.6 mm in the width direction of the web, and a water pressure of 6 MPa was injected in two front and back sides for entanglement. The porosity of the obtained antimicrobial nonwoven fabric sheet was 94%. The results of each evaluation are shown in Table 2. The sheet is not satisfactory in terms of liquid retentivity, releasability, flexibility, and fit to the skin.

[Comparative Example 7]

The wet-laid nonwoven fabric obtained in Example 3 was made into an antibacterial nonwoven fabric sheet without undergoing entanglement treatment. The results of each evaluation are shown in Table 2. The porosity of this nonwoven fabric sheet was 78%, and although it had such good tactile properties, it had poor liquid retentivity, poor releasability, and was not satisfactory in handleability.

[Comparative Example 8]

A card web having an apparent weight of about 60 g / m &lt; 2 &gt; prepared by blending 50% by weight of the EVOH-containing fibers of Reference Example 6 and 50% by weight of solvent-spun cellulose fibers (lyocell, .

Subsequently, a water jet was jetted onto the card web, and entanglement treatment was carried out to obtain a water entangled nonwoven fabric having an apparent weight of 60 g / m &lt; 2 &gt; to obtain a nonwoven fabric sheet. In the water entrainment treatment, a nozzle having an orifice of 0.1 mm in diameter was formed at intervals of 0.6 mm in the width direction of the web, and a water pressure of 6 MPa was injected in two front and back sides for entanglement. The porosity of the obtained nonwoven fabric sheet was 95%. The results of each evaluation are shown in Table 2. This sheet had sufficient liquid retentivity and releasability, and had a good touch, but was significantly inferior in antibacterial properties.

(Reference Example 7: Individual fiber)

(1) Silver-based antimicrobial microparticles ("AV10D" manufactured by Sinanen Zeomix Co., Ltd.) having an average particle diameter of 2.5 탆, about 99% by weight of an ethylene-vinyl alcohol copolymer having an ethylene content of 44 mol% Cube type) were mixed and discharged at a spinning temperature of 240 占 폚 by a melt extruder. The discharged yarns were cooled and solidified, and then drawn into a bobbin through a take-up roller.

(2) Then, the winding was heat-drawn at a drawing temperature of 80 DEG C at a drawing magnification of 2.4, and an emulsion was applied to the emulsion, followed by crimping using a crimping apparatus such as a star-shaped crimping apparatus. Following the crimp-imparting treatment, the fibers were dried by hot air at 100 占 폚 and then cut to an arbitrary cut length to obtain antibacterial EVOH-containing fibers (1.4 dtex, circular section). Both radial and stretchability were good, the strength was 3.1 cN / dtex, the elongation was 26%, and the Young's modulus was 30.8 cN / dtex.

(Reference Example 8: Composite fiber)

(1) Silver-based antimicrobial microparticles ("AV10D" manufactured by Sinanen Zeomix Co., Ltd.) having an average particle diameter of 2.5 탆, about 99% by weight of an ethylene-vinyl alcohol copolymer having an ethylene content of 44 mol% Cube type) was used as a core, and a thermoplastic polymer composed of polyethylene terephthalate was used as a core. Using a composite spinning device composed of a melt extruder, 50: 50 ratio. The discharged yarn was cooled and solidified, and then wound on a bobbin through a take-up roller.

(2) Then, the cigarette was heat-drawn at a draw ratio of 2.6 at a draw temperature of 80 DEG C, and an emulsion was applied to the emulsion, followed by crimping using a crimping apparatus such as a star-shaped crimping apparatus. Following the crimp-imparting treatment, the fibers were dried by hot air at 100 占 폚 and then cut into arbitrary cut lengths to obtain the antibacterial EVOH-containing fibers shown in Table 3 below (1.7 dtex, Diameter of the core portion: 8.9 mu m). Both radial and stretchability were good, the strength was 3.6 cN / dtex, the elongation was 31%, and the Young's modulus was 33.9 cN / dtex.

(Reference Example 9: Composite fiber)

(1) The coiled product of Reference Example 8 was thermally stretched at a stretching magnification of 2 times at a stretching temperature of 80 占 폚, emulsified with an emulsion bath, and then cut into 10 mm to obtain antibacterial EVOH-containing fibers shown in Table 3 below 1.7 dtex, 10 mm in length, 50: 50 in the ratio of the initial weight, circular section, diameter of the core of 8.9 탆). Both radial and stretchability were good, the strength was 3.6 cN / dtex, the elongation was 31%, and the Young's modulus was 33.9 cN / dtex.

(Reference Example 10: single fiber)

To 99 parts by weight of an ethylene-vinyl alcohol copolymer having an ethylene content of 85 mol%, silver-based inorganic antibacterial microparticles ("AV10D" manufactured by Sinanen Zeomix Co., Ltd., average particle size of 2.5 μm, approximately cubic ) Were mixed in the same manner as in Reference Example 7 to obtain an antibacterial EVOH-containing fiber (1.4 dtex, 51 mm length, circular section). Both radioactivity and stretchability were good, the strength was 3.7 cN / dtex, the elongation was 24%, and the Young's modulus was 35.1 cN / dtex.

(Reference Example 11: Composite fiber)

Antibacterial EVOH-containing fibers were obtained (5.5 dtex, length 51 mm, weight ratio of the initial weight of 50: 1, weight ratio of 50: 1) to the resin composition of Reference Example 8 except that the amount of resin discharged, the drawing speed and the drawing rate were adjusted so that the fineness was 5.5 dtex. 50, a circular cross section, and a diameter of the deep portion of 16.0 占 퐉). Both the spinnability and spinnability were good, the strength was 2.7 cN / dtex, the elongation was 36%, and the Young's modulus was 28.7 cN / dtex.

(Reference Example 12: Composite fiber)

(1) An ethylene-vinyl alcohol copolymer having an ethylene content of 44 mol% as an initial portion and a thermoplastic polymer composed of polyethylene terephthalate as a core portion were melt-extruded using a composite spinning device comprising a melt extruder, At a temperature of 280 DEG C and an initial weight ratio of 50:50. The discharged yarn was cooled and solidified, and then wound on a bobbin through a take-up roller.

(2) Then, the cocoon was thermally stretched at a stretching magnification of 2 at a stretching temperature of 80 DEG C, and an emulsion was applied to the emulsion bath, followed by crimping using a crimping apparatus such as a star-shaped crimping apparatus. After the crimp-imparting treatment, the fibers were dried by hot air at 100 캜 and then cut into 51 mm to obtain EVOH-containing fibers (3.4 dtex, 51 mm length, ). Both radial and stretchability were good, the strength was 3.6 cN / dtex, the elongation was 38%, and the Young's modulus was 38.5 cN / dtex.

[Example 7]

A card web having an apparent weight of about 60 g / m 2 mixed with 50% by weight of the antimicrobial EVOH-containing fiber of Reference Example 7 and 50% by weight of the solvent-spinning cellulose fiber (lyocell, lycoric acid, 1.7 dtex, 38 mm length) did.

Then, a water jet was jetted onto the card web, and entanglement treatment was carried out to obtain a water entangled nonwoven fabric having an apparent weight of 60 g / m 2 to obtain an antibacterial nonwoven fabric sheet of the present invention. In the water entrainment treatment, a nozzle having an orifice of 0.1 mm in diameter was formed at intervals of 0.6 mm in the width direction of the web, and a water pressure of 6 MPa was injected in two front and back sides for entanglement. The porosity of the obtained antimicrobial nonwoven fabric sheet was 90%. The results of each evaluation are shown in Table 3. This sheet had sufficient liquid retention, liquid return to the fabric, and good touch.

[Example 8]

A card web having an apparent weight of about 60 g / m 2 mixed with 50% by weight of the antimicrobial EVOH-containing fiber of Reference Example 8 and 50% by weight of the solvent-spinning cellulose fiber (lyocell production lyocell, 1.7 dtex, 38 mm length) did.

Then, a water jet was jetted onto the card web, and entanglement treatment was carried out to obtain a water entangled nonwoven fabric having an apparent weight of 60 g / m 2 to obtain an antibacterial nonwoven fabric sheet of the present invention. In the water entrainment treatment, a nozzle having an orifice of 0.1 mm in diameter was formed at intervals of 0.6 mm in the width direction of the web, and a water pressure of 6 MPa was injected in two front and back sides for entanglement. The porosity of the obtained antimicrobial nonwoven fabric sheet was 92%. The results of each evaluation are shown in Table 3. This sheet had sufficient liquid retention, liquid return to the fabric, and good touch.

[Example 9]

50% by weight of the antimicrobial EVOH-containing fibers of Reference Example 9 and 50% by weight of the solvent-spinning cellulose fibers (lycoric lanthanum product manufactured by Lenzinger Co., Ltd., 1.7 dtex, 12 mm length) were dispersed in water and an apparent weight of about 60 g / m &lt; 2 &gt;.

Subsequently, a water jet was sprayed on the wet-laid nonwoven fabric and the entanglement treatment was carried out to obtain a water-entangled nonwoven fabric having an apparent weight of 60 g / m 2 to obtain an antibacterial nonwoven fabric sheet of the present invention. In the water entrainment treatment, a nozzle having an orifice of 0.1 mm in diameter was formed at intervals of 0.6 mm in the width direction of the web, and a water pressure of 6 MPa was injected in two front and back sides for entanglement. The porosity of the obtained antimicrobial nonwoven fabric sheet was 86%. The results of each evaluation are shown in Table 3. This sheet had sufficient liquid retention, liquid return to the fabric, and good touch.

[Example 10]

A card web having an apparent weight of about 60 g / m 2 mixed with 50% by weight of the antimicrobial EVOH-containing fibers of Reference Example 11 and 50% by weight of solvent-spun cellulose fibers (lyocell production lyxer, 1.7 dtex, 38 mm length) did.

Then, a water jet was jetted onto the card web, and entanglement treatment was carried out to obtain a water entangled nonwoven fabric having an apparent weight of 60 g / m 2 to obtain an antibacterial nonwoven fabric sheet of the present invention. In the water entrainment treatment, a nozzle having an orifice of 0.1 mm in diameter was formed at intervals of 0.6 mm in the width direction of the web, and a water pressure of 6 MPa was injected in two front and back sides for entanglement. The porosity of the obtained antimicrobial nonwoven fabric sheet was 94%. The results of each evaluation are shown in Table 3. This sheet had sufficient liquid retention, liquid return to the fabric, and good touch.

[Example 11]

A water jet was sprayed onto the card web obtained in Example 8 and entangled to obtain a water entangled nonwoven fabric having an apparent weight of 60 g / m 2 to obtain the antimicrobial nonwoven fabric sheet of the present invention. In the water entrainment treatment, a nozzle having an orifice of 0.15 mm in diameter was formed at intervals of 0.6 mm in the width direction of the web, and water pressure of 8 MPa was injected in two front and back sides for entanglement. The porosity of the obtained antimicrobial nonwoven fabric sheet was 98%. The results of each evaluation are shown in Table 3. This sheet had sufficient liquid retention and liquid return to the fabric, while the feel was slightly inferior.

[Comparative Example 9]

(Average particle size of 0.008 mu m, approximately cubic shape) in which silver ion-supported inorganic antibacterial fine particles (manufactured by Sinanen Zeomix Co., Ltd.) and inorganic ion exchanger containing silver ions were blended in the same manner as in Reference Example 8, It could not be reliably relied on.

[Comparative Example 10]

(Average particle size of 25 mu m, approximately cubic) manufactured by Shinanen Zeomix) in which silver ion-supported silver ion-carrying inorganic ion exchanger was incorporated in the same manner as in Reference Example 8, It could not be reliably relied on.

[Comparative Example 11]

To 99 parts by weight of an ethylene-vinyl alcohol copolymer having an ethylene content of 8 mol%, silver-based inorganic antibacterial microparticles ("AV10D" manufactured by Shinaton Zeomix Co., Ltd., average particle size of 2.5 μm, ) Were mixed in the same manner as in Reference Example 7, but the preparation could not be stably performed due to radioactive defects.

[Comparative Example 12]

A card web having an apparent weight of about 60 g / m 2 mixed with 50% by weight of the antimicrobial EVOH-containing fibers of Reference Example 10 and 50% by weight of solvent-spun cellulose fibers (lyocell, lycoric acid, 1.7 dtex, 38 mm length) did.

Subsequently, a water jet was jetted onto the card web, and entanglement treatment was carried out to obtain a water entangled nonwoven fabric having an apparent weight of about 60 g / m 2 to obtain an antibacterial nonwoven fabric sheet. In the water entrainment treatment, a nozzle having an orifice of 0.1 mm in diameter was formed at intervals of 0.6 mm in the width direction of the web, and a water pressure of 6 MPa was injected in two front and back sides for entanglement. The porosity of the obtained liquid-repellent sheet was 91%. The results of each evaluation are shown in Table 4.

This sheet had good tactile sensation, but did not have sufficient liquid retention or liquid return to the fabric.

[Comparative Example 13]

An antimicrobial nonwoven fabric sheet was obtained in the same manner as in Example 7, except that the carded web having an antibacterial EVOH-containing fiber obtained in Reference Example 8 at an apparent weight of 100 g / m 2 and an apparent weight of 60 g / m 2 was prepared. The porosity of the obtained antimicrobial nonwoven fabric sheet was 96%. The results of each evaluation are shown in Table 4.

This sheet is not satisfactory in returning the liquid to the fabric, and is therefore difficult to use because of its low absorption rate and inferior in touch.

[Comparative Example 14]

A card web having an apparent weight of about 60 g / m 2 mixed with 65 wt% of solvent-spun cellulose fibers (lyocell manufactured by Lenzinger Co., Ltd., 1.7 dtex, 38 mm length) of 35% by weight of the antibacterial EVOH-containing fibers of Reference Example 8 did.

Subsequently, a water jet was jetted onto the card web, and entanglement treatment was carried out to obtain a water entangled nonwoven fabric having an apparent weight of 60 g / m 2 to obtain an antibacterial nonwoven fabric sheet. In the water entrainment treatment, a nozzle having an orifice of 0.1 mm in diameter was formed at intervals of 0.6 mm in the width direction of the web, and a water pressure of 6 MPa was injected in two front and back sides for entanglement. The porosity of the obtained antimicrobial nonwoven fabric sheet was 95%. The results of each evaluation are shown in Table 4.

This sheet is not sufficiently satisfactory in view of liquid retention, liquid-absorbing speed, and liquid return to the fabric.

[Comparative Example 15]

A card web having an apparent weight of about 60 g / m &lt; 2 &gt; prepared by mixing 70% by weight of the antibacterial EVOH-containing fibers of Reference Example 8 and 30% by weight of cotton fibers manufactured by Marusan Co.,

Then, a water jet was jetted onto the card web, and entanglement treatment was carried out to obtain a water entangled nonwoven fabric having an apparent weight of 60 g / m 2 to obtain an antibacterial nonwoven fabric sheet of the present invention. In the water entrainment treatment, a nozzle having an orifice of 0.1 mm in diameter was formed at intervals of 0.6 mm in the width direction of the web, and a water pressure of 6 MPa was injected in two front and back sides for entanglement. The porosity of the obtained antimicrobial nonwoven fabric sheet was 93%. The results of each evaluation are shown in Table 4.

This sheet is not satisfactory in terms of liquid retentivity, flexibility, and fit to the skin.

[Comparative Example 16]

The wet-laid nonwoven fabric obtained in Example 9 was made into an antibacterial nonwoven fabric sheet without undergoing entanglement treatment. The porosity of this antimicrobial nonwoven fabric sheet was 74%, and it had such good tactile feelings, but the stress was not reduced when wetted at 30% elongation, which was not satisfactory in handleability.

[Comparative Example 17]

A card web having an apparent weight of about 60 g / m 2 mixed with 50% by weight of the EVOH-containing fibers of Reference Example 12 and 50% by weight of solvent-spun cellulose fibers (Lycoris lentils manufactured by Lenzing Co., Ltd., length of 38 mm) .

Subsequently, a water jet was jetted onto the card web, and entanglement treatment was carried out to obtain a water entangled nonwoven fabric having an apparent weight of 60 g / m 2 to obtain an antibacterial nonwoven fabric sheet. In the water entrainment treatment, a nozzle having an orifice of 0.1 mm in diameter was formed at intervals of 0.6 mm in the width direction of the web, and a water pressure of 6 MPa was injected in two front and back sides for entanglement. The porosity of the obtained antimicrobial nonwoven fabric sheet was 95%. The results of each evaluation are shown in Table 4.

This sheet had sufficient liquid retentivity and releasability, and had a good touch, but was significantly inferior in antibacterial properties.

Industrial availability

The antibacterial nonwoven fabric sheet of the present invention can be used for absorbing a liquid component and contacting the skin, for example, a body fluid absorbent sheet (for example, a surface material such as a napkin or a diaper, a diaper liner, a wet tissue, (For example, a face mask, a makeup removing sheet, a cleansing sheet or a body cleansing sheet (such as a sweatsticking sheet, an oil removing sheet, a cooling sheet), a medicinal sheet (an itch inhibiting sheet, The antimicrobial nonwoven fabric sheet of the present invention has the advantage that the liquid component is quickly returned even when pressed with a finger while the liquid component such as a serum (cosmetic) is impregnated. , And is useful for a face mask having antimicrobial properties.

1: Laser displacement meter
2, 5: Load
3, 6: Samples
4, 7: Measuring stand

Claims (12)

Wherein an antibacterial ethylene-vinyl alcohol copolymer containing an inorganic antibacterial microparticle dispersed therein is present in at least a part of the surface of the fiber, the inorganic antibacterial microparticles have an average particle diameter of 0.3 to 6 占 퐉 and an antibacterial ethylene- Wherein the antimicrobial fiber having an ethylene content of 10 to 70 mol% and the solvent spinning cellulose fiber are intertwined with each other in the alcohol-based copolymer. The method according to claim 1,
Wherein the antimicrobial fiber and the solvent-spun cellulose-based fiber have a fiber length of 5 to 60 mm and are entangled with each other. The method according to claim 1,
The antimicrobial fiber is a sheath-core type conjugate fiber, which is an antimicrobial ethylene-vinyl alcohol copolymer containing an inorganic antimicrobial fine particle having a sheath portion and an average particle diameter of 0.3 to 6 탆 dispersed therein Wherein the core portion is made of a hydrophobic resin and has a diameter of 5 to 15 占 퐉. The method according to claim 1,
Wherein the antimicrobial nonwoven fabric sheet has irregularities on its surface. The method according to claim 1,
Wherein the antibacterial fiber is contained in an amount of 30 to 90% by weight. 6. The method of claim 5,
Wherein the antimicrobial fiber comprises 40 to 90% by weight of the antibacterial fiber, and the Young's modulus of the antibacterial fiber is 25 cN / dtex or more. delete A fluid-sealed sheet comprising the antibacterial non-woven fabric sheet according to any one of claims 1 to 6 and a fluid composition,
Wherein the fluid composition contains water. A fluid-sealed sheet comprising the antibacterial non-woven fabric sheet according to any one of claims 1 to 6 and a fluid composition,
Wherein the fluid composition comprises a cosmetic material. 10. The method of claim 9,
Sheath sheet which is a skin care sheet. 10. The method of claim 9,
Wherein the fluid composition is impregnated with 900 wt% of the fluid composition, and when the load of 260 g / cm &lt; 2 &gt; is applied for 1 min to remove, the recovery against compression in the thickness direction is 35% or more in 5 minutes. 9. A face mask using the septum sheet according to claim 9.

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