TWI663986B - Skin masking sheet containing cosmetic material and method for manufacture thereof - Google Patents

Skin masking sheet containing cosmetic material and method for manufacture thereof Download PDF

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TWI663986B
TWI663986B TW104110210A TW104110210A TWI663986B TW I663986 B TWI663986 B TW I663986B TW 104110210 A TW104110210 A TW 104110210A TW 104110210 A TW104110210 A TW 104110210A TW I663986 B TWI663986 B TW I663986B
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fiber
cellulose
mass
fibers
woven fabric
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TW104110210A
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TW201542232A (en
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牧原弘子
小出友哉
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日商大和紡控股股份有限公司
日商大和紡合纖股份有限公司
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    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/542—Adhesive fibres
    • D04H1/55—Polyesters
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/425—Cellulose series
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/542—Adhesive fibres
    • D04H1/544—Olefin series
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D2200/00—Details not otherwise provided for in A45D
    • A45D2200/10—Details of applicators
    • A45D2200/1009—Applicators comprising a pad, tissue, sponge, or the like
    • A45D2200/1027—Tissues, i.e. thin applicator sheets
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D44/00—Other cosmetic or toiletry articles, e.g. for hairdressers' rooms
    • A45D44/002—Masks for cosmetic treatment of the face

Abstract

本發明係提供一種含浸化妝料之皮膚被覆片用不織布，其係在含浸有化妝料之狀態，顯示高度透明感且處理性提升之不織布。含浸化妝料之皮膚被覆片用不織布中，使用1層以上之纖維素系混合纖維層。1層以上之纖維素系混合纖維層係在各層中含有50質量%以上之纖維長度為20mm以上且110mm以下之第1纖維素系纖維、及8質量%以上且40質量%以下之熱接著性纖維，構成纖維之交點之至少一部分係藉由熱接著性纖維而熱接著。不織布係設為整體具有25g/m2以上且48g/m2以下之單位面積質量者。不織布整體中之第1纖維素系纖維之含量係40.5質量%以上，熱接著性纖維之含量係8質量%以上。 The present invention provides a non-woven fabric for a skin covering sheet impregnated with a cosmetic material, which is a non-woven fabric that is highly impregnated with a cosmetic material and exhibits a high degree of transparency and improved handling. In the non-woven fabric for a skin covering sheet impregnated with a cosmetic, one or more cellulose-based mixed fiber layers are used. One or more cellulose-based mixed fiber layers each contain 50% by mass or more of a first cellulose-based fiber having a fiber length of 20mm or more and 110mm or less and a thermal adhesive property of 8% or more and 40% by mass or less. The fiber and at least a part constituting the intersection point of the fiber are thermally bonded by the thermal adhesive fiber. The nonwoven fabric is one having a unit area mass of 25 g / m 2 or more and 48 g / m 2 or less as a whole. The content of the first cellulose-based fiber in the entire nonwoven fabric is 40.5 mass% or more, and the content of the heat-adhesive fiber is 8 mass% or more.

Description

含浸化妝料之皮膚被覆片用不織布及其製造方法 Non-woven fabric for skin covering sheet impregnated with cosmetics and manufacturing method thereof

本發明係關於作為含浸化妝料並貼附於人體的皮膚等而使用之薄片(本發明中稱為「含浸化妝料之皮膚被覆片」)之基材使用之不織布及其製造方法以及使用該不織布之含浸化妝料之皮膚被覆片。 The present invention relates to a non-woven fabric used as a base material of a sheet used as an impregnated cosmetic and attached to the skin of a human body (referred to as a "skin-coated sheet of impregnated cosmetic" in the present invention, a method for manufacturing the same, and using the same A skin covering sheet impregnated with a cosmetic.

在美容/化妝品領域，製造販賣面膜(face mask)等含浸化妝料之皮膚被覆片。含浸化妝料之皮膚被覆片之基材一般係使用以棉花、黏液嫘縈纖維等親水性纖維為主體之不織布。此種不織布製的含浸化妝料之皮膚被覆片之基材一般係白色，在含浸有化妝料之狀態下(以下，本說明書中亦簡稱為「濕潤狀態」)亦呈現接近白色之顏色。 In the field of beauty / cosmetics, it manufactures and sells skin covering sheets impregnated with cosmetics such as face masks. The base material of the skin covering sheet impregnated with cosmetics is generally a non-woven fabric mainly composed of hydrophilic fibers such as cotton and mucoid fibers. The base material of such a non-woven fabric-impregnated cosmetic sheet is generally white, and also shows a color close to white when it is impregnated with cosmetic material (hereinafter, also referred to as "wet state" in this specification).

近年來，針對在使用時不明顯，換而言之，即使貼附在臉上，看起來仍宛如未貼附般的外觀(肌膚的顏色穿透而可看到膚色之狀態)之面膜之期望增加。此種面膜之基材係利用濕潤狀態下之透明感高之不織布。就濕潤狀態下之透明感高之不織布而言，已知一種含有纖維素系纖 維之不織布，其係使用在濕潤狀態下之透明感易變高之纖維，具體上為使用盡量減少無機化合物之含量(亦即灰分)之纖維素系纖維(參照專利文獻1)。 In recent years, there is an expectation for a mask that is not obvious during use, in other words, even if it is attached to the face, it still looks like it is not attached (the color of the skin penetrates and the state of the skin can be seen) increase. The base material of this mask is a non-woven fabric with high transparency in a wet state. As for a non-woven fabric having high transparency in a wet state, a cellulose fiber is known The non-woven fabric is made of fibers that tend to have high transparency in a wet state, and specifically uses cellulose fibers that reduce the content of inorganic compounds (that is, ash) as much as possible (see Patent Document 1).

[先前技術文獻] [Prior technical literature] [專利文獻] [Patent Literature]

[專利文獻1]國際公開第2013/187404號 [Patent Document 1] International Publication No. 2013/187404

然而，由於僅由纖維素系纖維所構成之不織布(尤其僅由纖維素系再生纖維所構成之不織布，以下相同)係僅藉由纖維彼此的交纏來維持不織布的形狀，因此不織布之機械強度低，且濕潤時會變得比乾燥時更低。例如，已知纖維素系再生纖維之一之黏液嫘縈，雖然藉由盡可能減少黏液嫘縈所含之無機化合物(具體上可列舉如氧化鈦、氧化鋅般之無機化合物)之含量，而在濕潤狀態下顯示高透明感，然而僅由該黏液嫘縈纖維所構成之不織布在濕潤狀態下，比乾燥狀態下之強度低。基材使用該不織布並且含浸有化妝料之薄片即使施加微小的力量，例如從商品包裝取出薄片時施加於不織布之力量、或將摺疊的薄片展開時施加於不織布之力量，仍會有薄片延展、形狀變形之虞。又，僅由纖維素系纖維所構成之不織布的彈性(韌性)不足，且該傾向在濕潤狀態下顯著地顯現。基材使用該不織布並且含浸有化妝料之薄片係難以從摺疊狀態展開，而 有裝配於皮膚為止需耗費時間之虞，由於欲強制展開而以強大力量拉扯薄片，因此亦有形狀容易變形之虞。 However, since the non-woven fabric composed of only cellulose-based fibers (especially the non-woven fabric composed only of cellulose-based recycled fibers, the same applies hereinafter) maintains the shape of the non-woven fabric only by entanglement of the fibers, the mechanical strength of the non-woven fabric Low and becomes lower when wet than when dry. For example, it is known that the slime tincture of one of the cellulose-based regenerated fibers can reduce the content of inorganic compounds (specifically, inorganic compounds such as titanium oxide and zinc oxide) contained in the slime tincture as much as possible. In the wet state, it shows a high transparency, but the non-woven fabric composed of only the slime fiber is weaker in the wet state than in the dry state. If the base material using the non-woven fabric and impregnated with the cosmetic material is applied with a slight force, for example, the force applied to the non-woven fabric when the sheet is taken out from the product package, or the non-woven fabric is applied when the folded sheet is unfolded, the sheet is stretched, The shape may be distorted. In addition, the elasticity (toughness) of a nonwoven fabric composed of only cellulose-based fibers is insufficient, and this tendency is apparent in a wet state. The base material using the non-woven fabric and impregnated with cosmetics is difficult to unfold from the folded state, and It may take time until it is assembled on the skin, and the sheet may be easily deformed because the sheet is pulled with a strong force due to forced expansion.

僅由容易獲得透明感之纖維(具體上為盡量減少無機化合物之含量之纖維素系纖維)所構成之不織布，為了提高機械強度、彈性而提升濕潤狀態下之處理性，可想到提高不織布之單位面積質量(設為高單位面積質量)。然而，由於若提高單位面積質量，則濕潤狀態下之透明感降低，因此會不符預期的目的。僅為了提高濕潤狀態下之透明感，雖然不織布之單位面積質量越低(低單位面積質量)越佳，但濕潤狀態下之處理性降低。 Non-woven fabrics consisting of only fibers that are easily transparent (specifically, cellulose-based fibers that minimize the content of inorganic compounds). In order to improve mechanical strength and elasticity and improve the rationality in a wet state, it is conceivable to increase the unit of non-woven fabrics. Area mass (set to high mass per unit area). However, if the mass per unit area is increased, the sense of transparency in a wet state is reduced, and therefore the intended purpose is not met. In order to improve the transparency in the wet state, although the unit weight of the non-woven fabric is lower (lower unit area mass), the rationality is reduced in the wet state.

本發明之目的係提供含浸化妝料之皮膚被覆片用不織布及其製造方法，該不織布係在含浸有化妝料之狀態(濕潤狀態)，顯示高透明感且處理性提升之不織布。又，本發明進一步之目的係提供使用該不織布之含浸化妝料之皮膚被覆片。 An object of the present invention is to provide a non-woven fabric for skin covering sheet impregnated with a cosmetic material and a method for manufacturing the same. The non-woven fabric is a non-woven fabric in which the cosmetic material is impregnated (wet state) and exhibits high transparency and improved handleability. A further object of the present invention is to provide a skin covering sheet using the non-woven impregnated cosmetic.

若依據本發明之一要旨，係提供含浸化妝料之皮膚被覆片用不織布，其係含有1層以上之纖維素系混合纖維層之不織布，上述1層以上之纖維素系混合纖維層係在各層中含有50質量%以上之第1纖維素系纖維、及8質量%以上且40質量%以下之熱接著性纖維，構成纖維之交點之至少一部分係藉由熱接著性纖維而熱接著，上述第1纖維素系纖維係纖維長度為20mm以上且 110mm以下，且係選自由黏液嫘縈、溶劑紡絲纖維素、銅氨嫘縈、二乙酸酯、及三乙酸酯所組成之群之至少1種，並滿足下述(a)或(b)之條件者：(a)折射率為1.6以上之無機化合物之含量為0.5質量%以下(包含0質量%)、灰分為5質量%以下(包含0質量%)之纖維素系纖維(b)折射率為1.6以上之無機化合物之含量為0.5質量%以下、折射率未達1.6之無機化合物之含量為5質量%以上且50質量%以下、灰分大於5質量%且50質量%以下之纖維素系纖維，上述不織布整體具有25g/m2以上且48g/m2以下之單位面積質量，上述不織布整體中之第1纖維素系纖維之含量為40.5質量%以上，熱接著性纖維之含量為8質量%以上。 According to one aspect of the present invention, a non-woven fabric for skin covering sheet impregnated with cosmetics is provided, which is a non-woven fabric containing one or more cellulose-based mixed fiber layers, and the above-mentioned one or more cellulose-based mixed fiber layers are in each layer. The first cellulose-based fiber containing 50% by mass or more and the thermally-adhesive fiber having 8% by mass or more and 40% by mass or less are included. At least a part of the intersection point of the fibers is thermally bonded by the thermal-adhesive fiber. 1 Cellulose-based fiber-based fiber having a length of 20 mm or more and 110 mm or less, and at least one selected from the group consisting of slime, solvent-spun cellulose, copper ammonia, diacetate, and triacetate 1 type and satisfy the following conditions (a) or (b): (a) the content of the inorganic compound with a refractive index of 1.6 or more is 0.5% by mass or less (including 0% by mass), and the ash content is 5% by mass or less ( (B) contains cellulose-based fibers (b) the content of inorganic compounds having a refractive index of 1.6 or more is 0.5% by mass or less, the content of inorganic compounds having a refractive index of less than 1.6 is 5% by mass or more and 50% by mass or less, Fibers with an ash content greater than 5 mass% and less than 50 mass% Hormone-based fibers, the above-described non-woven integrally with 25g / m 2 or more and 48g mass of 2 or less of a unit area / m, the whole of the first cellulose fibers content of the non-woven fabric is 40.5 mass% thermobonding fibers content 8% by mass or more.

熱接著性纖維可含有鞘芯型複合纖維。例如，鞘芯型複合纖維可由含有第1聚烯烴系樹脂或聚酯系樹脂之芯部、與含有具有比該第1聚烯烴系樹脂或聚酯系樹脂之熔點更低熔點之第2聚烯烴系樹脂之鞘部而構成。 The heat-adhesive fiber may contain a sheath-core type composite fiber. For example, the sheath-core type composite fiber may include a core portion containing a first polyolefin-based resin or a polyester-based resin, and a second polyolefin having a lower melting point than the melting point of the first polyolefin-based resin or polyester-based resin. It is made of a resin sheath.

熱接著性纖維可含有源自分割型複合纖維之纖維。例如，分割型複合纖維可由第1聚烯烴系樹脂或聚酯系樹脂、與具有較該第1聚烯烴系樹脂或聚酯系樹脂之熔點更低熔點之第2聚烯烴系樹脂之組合而構成。 The heat-adhesive fiber may contain a fiber derived from a split type composite fiber. For example, the split type composite fiber may be composed of a combination of a first polyolefin-based resin or polyester-based resin and a second polyolefin-based resin having a lower melting point than that of the first polyolefin-based resin or polyester-based resin. .

第1纖維素系纖維較佳係選自由黏液嫘縈、溶劑紡絲纖維素、及銅氨嫘縈所組成之群之至少1種。 The first cellulose-based fiber is preferably at least one selected from the group consisting of slime rayon, solvent-spun cellulose, and copper ammonia rayon.

本發明之一態樣中，含浸化妝料之皮膚被覆片用不織布可為由1層之上述纖維素系混合纖維層所構成者。 In one aspect of the present invention, the non-woven fabric for a skin covering sheet impregnated with a cosmetic material may be composed of one layer of the above-mentioned cellulose-based mixed fiber layer.

本發明之另一態樣中，可積層1層之上述纖維素系混合纖維層、和含有多於50質量%之纖維長度為0.5mm以上且未達20mm之第2纖維素系纖維或纖維長度超過110mm之第3纖維素系纖維之其他纖維素系纖維層、或者由纖維長度超過110mm或連續纖維且灰分為0.5質量%以下之熱可塑性樹脂系纖維所構成之長纖維不織布層。又，可在2層之上述纖維素系混合纖維層之間積層含有多於50質量%之纖維長度為0.5mm以上且未達20mm之第2纖維素系纖維或纖維長度超過110mm之第3纖維素系纖維之其他纖維素系纖維層、或者由纖維長度超過110mm或連續纖維且灰分為0.5質量%以下之熱可塑性樹脂系纖維所構成之長纖維不織布層。 In another aspect of the present invention, one layer of the above-mentioned cellulose-based mixed fiber layer and a second cellulose-based fiber or fiber length containing more than 50% by mass of a fiber length of 0.5 mm or more and less than 20 mm can be laminated. Other cellulose-based fiber layers of the third cellulose-based fiber exceeding 110 mm, or long-fiber nonwoven fabric layers composed of thermoplastic resin fibers having a fiber length exceeding 110 mm or continuous fibers and an ash content of 0.5% by mass or less. In addition, a second cellulose-based fiber having a fiber length of 0.5 mm or more and less than 20 mm or a third fiber having a fiber length of more than 110 mm may be laminated between the two cellulose-based mixed fiber layers. Other cellulose-based fiber layers of plain fibers, or long-fiber nonwoven fabric layers composed of thermoplastic resin fibers having a fiber length of more than 110 mm or continuous fibers and an ash content of 0.5% by mass or less.

本發明之該態樣中，上述含浸化妝料之皮膚被覆片用不織布整體中之第2纖維素系纖維或第3纖維素系纖維或者熱可塑性樹脂系纖維之含量較佳係50質量%以下。 In this aspect of the present invention, the content of the second cellulose-based fiber, the third cellulose-based fiber, or the thermoplastic resin-based fiber in the entire nonwoven fabric for the skin covering sheet impregnated with the cosmetic is preferably 50% by mass or less.

上述之其他纖維素系纖維層可含有多於50質量%之紙漿纖維作為第2纖維素系纖維。 The other cellulose-based fiber layer described above may contain more than 50% by mass of pulp fibers as the second cellulose-based fiber.

若依據本發明之另一要旨，提供上述本發明之含浸化妝料之皮膚被覆片用不織布之製造方法，包括下述步驟： According to another aspect of the present invention, a method for manufacturing a non-woven fabric for a skin covering sheet of the impregnated cosmetic according to the present invention is provided, including the following steps:

將1片以上之纖維素系混合纖維薄片，依情況，與含有多於50質量%之纖維長度為0.5mm以上且未達20mm之第2纖維素系纖維或纖維長度超過110mm之第3纖維素系纖維之其他纖維素系纖維薄片、或者由纖維長度超過110mm或連續纖維且灰分為0.5質量%以下之熱可塑性樹脂系纖維所構成之長纖維不織布薄片一起施以壓製處理及熱處理，將該1片以上之纖維素系混合纖維薄片及該其他纖維素系纖維薄片或該長纖維不織布薄片分別作為上述1層以上之纖維素系混合纖維層及上述其他纖維素系纖維層或上述長纖維不織布層，使由此所得之不織布表面平滑化；以及使熱接著性纖維之至少一部分熔融，將構成纖維之交點之至少一部分藉由熱接著性纖維而熱接著，其中，該1片以上之纖維素系混合纖維薄片係在各薄片中含有50質量%以上之第1纖維素系纖維、及8質量%以上且40質量%以下之熱接著性纖維，上述第1纖維素系纖維係纖維長度為20mm以上且110mm以下，且係選自由黏液嫘縈、溶劑紡絲纖維素、銅氨嫘縈、二乙酸酯、及三乙酸酯所組成之群之至少1種，並滿足下述(a)或(b)之條件者： One or more cellulose-based mixed fiber flakes, as the case may be, with more than 50% by mass of second cellulose-based fibers having a fiber length of 0.5 mm or more and less than 20 mm or third cellulose having a fiber length of more than 110 mm Other cellulose-based fiber sheets of the system fiber, or long-fiber non-woven fabric sheets composed of thermoplastic resin fibers having a fiber length of more than 110 mm or continuous fibers and an ash content of 0.5% by mass or less are subjected to a compression treatment and a heat treatment. The above-mentioned cellulose-based mixed fiber sheet and the other cellulose-based fiber sheet or the long-fiber nonwoven fabric sheet are respectively used as the above-mentioned one or more cellulose-based mixed fiber layer and the other cellulose-based fiber layer or the long-fiber nonwoven layer. Smoothing the surface of the nonwoven fabric thus obtained; and melting at least a part of the heat-adhesive fibers and heat-bonding at least a part of the intersection points of the fibers by the heat-adhesive fibers, wherein the one or more cellulose fibers are The mixed fiber sheet contains 50% by mass of the first cellulose-based fiber and 8% by mass to 40% by mass of each sheet. The heat-adhesive fiber, the first cellulose-based fiber-based fiber has a length of 20 mm or more and 110 mm or less, and is selected from the group consisting of slime, solvent-spun cellulose, copper ammonia, diacetate, and triacetic acid At least one of the group consisting of esters, and satisfies the following conditions (a) or (b):

(a)折射率為1.6以上之無機化合物之含量為0.5質量%以下、灰分為5質量%以下之纖維素系纖維 (a) Cellulose-based fibers having a refractive index of 1.6 or more and an inorganic compound content of 0.5% by mass or less and an ash content of 5% by mass or less

(b)折射率為1.6以上之無機化合物之含量為0.5質量%以下、折射率未達1.6之無機化合物之含量為5質量%以上且50質量%以下、灰分大於5質量%且50質量%以下之纖 維素系纖維。 (b) The content of the inorganic compound having a refractive index of 1.6 or more is 0.5% by mass or less, the content of the inorganic compound having a refractive index of less than 1.6 is 5% by mass or more and 50% by mass or less, and the ash content is greater than 5% by mass and 50% by mass or less Fiber Vitamin fiber.

壓製處理可藉由將上述1片以上之纖維素系混合纖維薄片，依情況與上述其他纖維素系纖維薄片或上述長纖維不織布薄片一起通過一對輥間來實施。 The pressing treatment can be performed by passing one or more cellulose-based mixed fiber sheets together with the other cellulose-based fiber sheets or the long-fiber non-woven sheet through a pair of rolls as appropriate.

本發明之含浸化妝料之皮膚被覆片用不織布之製造方法，在壓製處理及熱處理之前，可更包含將上述1片以上之纖維素系混合纖維薄片，依情況與上述其他纖維素系纖維薄片或上述長纖維不織布薄片一起施以水流交纏處理。 The manufacturing method of the non-woven fabric for skin covering sheet impregnated with the cosmetic material of the present invention may further include: before the pressing treatment and the heat treatment, the above-mentioned one or more cellulose-based mixed fiber sheets, and the other cellulose-based fiber sheets or The long-fiber nonwoven fabric sheet is subjected to a water-entanglement treatment together.

壓製處理可為對上述1片以上之纖維素系混合纖維薄片及依情況之上述其他纖維素系纖維薄片或上述長纖維不織布薄片，在濕潤狀態下實施者。 The pressing treatment may be performed on one or more of the cellulose-based mixed fiber sheet and the other cellulose-based fiber sheet or the long-fiber nonwoven sheet as described above in a wet state.

若依據本發明之其他要旨，更提供含浸化妝料之皮膚被覆片，其係將上述之本發明之含浸化妝料之皮膚被覆片用不織布作為基材，以相對於該基材100質量份，化妝料為在150質量份以上且2500質量份以下之範圍內之比例含浸。 According to the other gist of the present invention, a skin covering sheet with impregnated cosmetics is further provided. The skin covering sheet with impregnated cosmetics of the present invention is made of a non-woven fabric as a base material, and 100 parts by mass of the base material is used for makeup. The material is impregnated at a ratio of 150 mass parts to 2500 mass parts.

若依據本發明，含浸化妝料之皮膚被覆片用不織布中，作為第1纖維素系纖維，選擇纖維長度為20mm以上且110mm以下，且係選自由黏液嫘縈、溶劑紡絲纖維素、銅氨嫘縈、二乙酸酯、及三乙酸酯所組成之群之至少1種，並滿足下述(a)或(b)之條件者： According to the present invention, in the non-woven fabric for skin covering sheet impregnated with cosmetics, as the first cellulose-based fiber, a fiber length of 20 mm or more and 110 mm or less is selected, and the fiber is selected from the group consisting of slime cellulose, solvent-spun cellulose, and copper ammonia. At least one of the group consisting of hydrazone, diacetate, and triacetate, and satisfies the following conditions (a) or (b):

(a)折射率為1.6以上之無機化合物之含量為0.5質量% 以下、灰分為5質量%以下之纖維素系纖維 (a) The content of the inorganic compound having a refractive index of 1.6 or more is 0.5% by mass Cellulose fibers with an ash content of 5 mass% or less

(b)折射率為1.6以上之無機化合物之含量為0.5質量%以下、折射率未達1.6之無機化合物之含量為5質量%以上且50質量%以下、灰分大於5質量%且50質量%以下之纖維素系纖維 (b) The content of the inorganic compound having a refractive index of 1.6 or more is 0.5% by mass or less, the content of the inorganic compound having a refractive index of less than 1.6 is 5% by mass or more and 50% by mass or less, and the ash content is greater than 5% by mass and 50% by mass or less Cellulose fiber

使用含有50質量%以上之該第1纖維素系纖維、及8質量%以上且40質量%以下之熱接著性纖維之纖維素系混合纖維層，將構成纖維之交點之至少一部分藉由熱接著性纖維而熱接著，針對不織布整體，將單位面積質量設為25g/m2以上且48g/m2以下，將第1纖維素系纖維之含量設為40.5質量%以上，將熱接著性纖維之含量設為8質量%以上。 A cellulose-based mixed fiber layer containing 50% by mass or more of the first cellulose-based fiber and 8% by mass or more and 40% by mass or less of thermally-adhesive fiber is used to heat-bond at least a part of the intersection of the fibers by heat. The heat-resistant fiber is then bonded to the entire non-woven fabric with a mass per unit area of 25 g / m 2 or more and 48 g / m 2 or less. The content of the first cellulose-based fiber is 40.5 mass% or more. The content is set to 8% by mass or more.

藉此，提供在含浸有化妝料之狀態(濕潤狀態)顯示高透明感且處理性提升之含浸化妝料之皮膚被覆片用不織布。又，若依據本發明，提供該含浸化妝料之皮膚被覆片用不織布之製造方法及使用該不織布之含浸化妝料之皮膚被覆片。 Thereby, a non-woven fabric for a skin-coated sheet which is impregnated with a cosmetic material and exhibits high transparency in a state (wet state) impregnated with a cosmetic material and improved handling properties is provided. Furthermore, according to the present invention, a method for producing a non-woven fabric for a skin-coated sheet impregnated with a cosmetic and a skin-coated sheet using the non-woven impregnated cosmetic are provided.

第1圖係本發明之實施例4中之不織布之纖維素系混合纖維層之剖面之掃描型電子顯微鏡照片(150倍)。 FIG. 1 is a scanning electron microscope photograph (150 times) of a cross section of a non-woven cellulose-based mixed fiber layer in Example 4 of the present invention.

本發明之不織布係作為含浸化妝料之皮膚被覆片之基材而使用之含浸化妝料之皮膚被覆片用不織布，由含有1層以上之纖維素系混合纖維層而構成。以下， 詳述本發明之兩個實施形態中之含浸化妝料之皮膚被覆片用不織布及其製造方法以及使用該不織布之含浸化妝料之皮膚被覆片。 The non-woven fabric of the present invention is a non-woven fabric for a skin-coated sheet impregnated with a cosmetic used as a base material of a skin-coated sheet impregnated with a cosmetic, and is composed of a cellulose-based mixed fiber layer containing one or more layers. the following, The non-woven fabric for a skin-coated sheet impregnated with a cosmetic in two embodiments of the present invention, a method for manufacturing the same, and the skin-coated sheet using the impregnated cosmetic with a non-woven fabric are described in detail.

再者，本發明中，用語「含浸化妝料」意指適宜含浸化妝料，並無僅限於「化妝料」之意圖，可含浸可取代「化妝料」之其他液狀物，例如亦可含浸「藥劑」等。 Furthermore, in the present invention, the term "impregnated cosmetic material" means that the cosmetic material is suitable for impregnation, and is not limited to "cosmetic material". It can be impregnated with other liquids that can replace "cosmetic material", such as "impregnated" Pharmacy "etc.

[實施形態1] [Embodiment 1]

本實施形態係關於由1層纖維素系混合纖維層所構成之單層型之含浸化妝料之皮膚被覆片用不織布及其製造方法以及使用該不織布之含浸化妝料之皮膚被覆片。 This embodiment relates to a non-woven fabric for a single-layer type impregnated cosmetic skin cover sheet composed of one layer of a cellulose-based mixed fiber layer, a method for manufacturing the same, and a skin-coated sheet impregnated with the non-woven fabric.

纖維素系混合纖維層含有50質量%以上之第1纖維素系纖維、及8質量%以上且40質量%以下之熱接著性纖維(惟，該等之合計不超過100質量%)，構成纖維之交點之至少一部分係藉由熱接著性纖維熱接著而成。 The cellulose-based mixed fiber layer contains 50% by mass or more of the first cellulose-based fibers and 8% by mass or more and 40% by mass or less of thermal adhesive fibers (however, the total of these does not exceed 100% by mass), constituting the fibers At least a part of the intersection is formed by thermally bonding the thermally-adhesive fibers.

第1纖維素系纖維係以纖維素為基礎而構成，具體上為選自由黏液嫘縈、溶劑紡絲纖維素、銅氨嫘縈、二乙酸酯、及三乙酸酯所組成之群之至少1種，並且纖維長度為20mm以上且110mm以下，並滿足關於纖維所含有之無機成分(亦即灰分)之以下兩個條件(a)及(b)中之任一者。 The first cellulose-based fiber is composed of cellulose, and is specifically selected from the group consisting of slime rayon, solvent-spun cellulose, copper ammonia hydrazone, diacetate, and triacetate. At least one type, and the fiber length is 20 mm or more and 110 mm or less, and one of the following two conditions (a) and (b) regarding the inorganic component (ie, ash content) contained in the fiber is satisfied.

(a)折射率為1.6以上之無機化合物之含量為0.5質量%以下、灰分為5質量%以下之纖維素系纖維 (a) Cellulose-based fibers having a refractive index of 1.6 or more and an inorganic compound content of 0.5% by mass or less and an ash content of 5% by mass or less

(b)折射率為1.6以上之無機化合物之含量為0.5質量%以下、折射率未達1.6之無機化合物之含量為5質量%以上且50質量%以下、灰分大於5質量%且50質量%以下之纖維素系纖維 (b) The content of the inorganic compound having a refractive index of 1.6 or more is 0.5% by mass or less, the content of the inorganic compound having a refractive index of less than 1.6 is 5% by mass or more and 50% by mass or less, and the ash content is greater than 5% by mass and 50% by mass or less Cellulose fiber

再者，本發明中，關於纖維素系纖維，灰分係指以依據JIS L1015 8.20(2010)之方法、或後述方法所測定之灰分。認為灰分係表示預定對象纖維中之總無機化合物(不依折射率)之含量者。 In the present invention, as for the cellulose-based fiber, the ash content refers to the ash content measured by a method in accordance with JIS L1015 8.20 (2010) or a method described later. The ash content is considered to mean the content of the total inorganic compound (independent of the refractive index) in the intended target fiber.

又，本發明中，無機化合物之折射率係由折射率貝克線(Becke's line)法而求得。折射率貝克線法係將無機化合物粉末設置於顯微鏡用標本(preparation)上，滴入分散液後，藉由顯微鏡以目視觀察於無機化合物之邊緣內側與外側產生之貝克線。此時，上下移動鏡筒，直到可確認到貝克線為止，調節分散液之折射率，從分散液之折射率求取無機化合物之折射率之方法。 In the present invention, the refractive index of the inorganic compound is obtained by a refractive index Becke's line method. The refractive index Beck line method is a method in which an inorganic compound powder is set on a preparation for a microscope, and a Beck line generated on the inner side and the outer side of the edge of the inorganic compound is visually observed through a microscope after the dispersion is dropped. At this time, move the lens barrel up and down until the Baker line can be confirmed, adjust the refractive index of the dispersion, and obtain the refractive index of the inorganic compound from the refractive index of the dispersion.

該第1纖維素系纖維在濕潤狀態可顯示高透明感。因此，纖維素系混合纖維層含有第1纖維素系纖維作為主成分(50質量%以上)者，係有助於最終所得之不織布之濕潤狀態下之透明感提升。纖維素系混合纖維層(本實施形態中，即不織布整體)中之第1纖維素系纖維之含量只要為50質量%以上即可，若欲獲得更高的透明感，較佳係含量更高者，依不織布整體之單位面積質量而異，例如可為60質量%以上，更甚者為70質量%以上。 This first cellulose-based fiber exhibits high transparency in a wet state. Therefore, if the cellulose-based mixed fiber layer contains the first cellulose-based fiber as a main component (50% by mass or more), it contributes to the improvement in transparency of the finally obtained nonwoven fabric in a wet state. The content of the first cellulose-based fiber in the cellulose-based mixed fiber layer (in this embodiment, the entire non-woven fabric) may be 50% by mass or more. If a higher transparency is desired, the content is preferably higher. It depends on the mass per unit area of the entire non-woven fabric, and may be, for example, 60% by mass or more, or even 70% by mass or more.

纖維素系再生纖維係指將纖維素溶解並再 生為纖維狀者。雖依纖維中所含之無機化合物之量(亦即灰分)、無機化合物之組成而異，但纖維素系再生纖維在濕潤狀態下尤其容易顯示高透明感，故較佳。就本發明可使用之纖維素系再生纖維而言，可列舉黏液嫘縈、溶劑紡絲纖維素(或稱為精製纖維素)、及銅氨嫘縈，該等皆為親水性，在濕潤狀態下尤其顯示高透明感。其中，使用黏液嫘縈時，後述處理性提升之效果顯著。溶劑紡絲纖維素亦稱為溶解性纖維(lyocell)，以Tencel(註冊商標)等名稱來販賣。銅氨嫘縈亦稱為cupra。纖維素系再生纖維之纖維剖面可為略圓形、方形、菊花狀等任意形態，例如可為略圓形或菊花狀。纖維素系再生纖維具有菊花狀纖維剖面時，有最終所得之不織布，對於臉部等皮膚，在濕潤狀態下尤其顯示高密著性(貼合性)之優點。在為黏液嫘縈時可適宜獲得菊花狀纖維剖面。另一方面，纖維素系再生纖維具有略圓形纖維剖面時，有可減少光的漫反射，最終所得之不織布在濕潤狀態下尤其可顯示高透明感之優點。在為溶劑紡絲纖維素或銅氨嫘縈時可適宜獲得略圓形纖維剖面。纖維素系半合成纖維係指將纖維素施以化學反應而合成為纖維狀者。就本發明可使用之纖維素系半合成纖維而言，可列舉二乙酸酯及三乙酸酯。 Cellulose-based regenerated fiber Born as fibrous. Although it depends on the amount of the inorganic compound (that is, ash content) and the composition of the inorganic compound contained in the fiber, the cellulose-based regenerated fiber is particularly likely to exhibit a high transparency feeling in a wet state, so it is preferable. Examples of the cellulose-based regenerated fibers that can be used in the present invention include slime rayon, solvent-spun cellulose (or called refined cellulose), and copper ammonia rayon, all of which are hydrophilic and in a wet state. The bottom shows a particularly high sense of transparency. Among them, when slime tincture is used, the effect of improving the handling properties described later is remarkable. Solvent-spun cellulose is also called lyocell and is sold under the name of Tencel (registered trademark). Copper ammonia is also known as cupra. The fiber cross section of the cellulose-based regenerated fiber may be any shape such as a round shape, a square shape, and a chrysanthemum shape, for example, it may be a round shape or a chrysanthemum shape. When the cellulose-based regenerated fiber has a chrysanthemum-shaped fiber cross section, the nonwoven fabric finally obtained is advantageous in that, for skin such as the face, particularly high adhesion (adhesiveness) is exhibited in a wet state. The chrysanthemum fiber profile can be obtained properly when it is a slime. On the other hand, when the cellulose-based regenerated fiber has a slightly circular fiber cross section, diffuse reflection of light can be reduced, and the finally obtained non-woven fabric has the advantage of exhibiting high transparency in a wet state. It is suitable to obtain a slightly circular fiber cross section when spinning cellulose or copper ammonia for a solvent. Cellulose-based semi-synthetic fiber refers to a fiber that is synthesized by applying a chemical reaction to cellulose. Examples of the cellulose-based semi-synthetic fibers usable in the present invention include diacetate and triacetate.

本發明之第1纖維素系纖維，折射率為1.6以上之無機化合物之含量為0.5質量%以下。與本發明相異，一般不織布所用之黏液嫘縈、溶劑紡絲纖維素、銅氨嫘縈、二乙酸酯、三乙酸酯中，將氧化鈦、氧化鋅等折射 率高之無機化合物之粉末作為用以抑制光澤之去光劑(或亦可稱為紫外線遮蔽劑)添加於紡絲時之原料中。然而，含有許多該無機化合物之纖維素系纖維，濕潤狀態下之透明感變低。因此，本發明之第1纖維素系纖維，較佳係盡量不含折射率為1.6以上之無機化合物，折射率為1.6以上之無機化合物之含量必須為0.5質量%以下。就折射率為1.6以上之無機化合物之例而言，可列舉氧化鈦、氧化鋅、氧化鋁、硫酸鋇等。作為該纖維素系纖維可使用分類為所謂的「有光(bright)」之纖維。相對於此，分類為所謂的「消光(dull)」、「半消光」之纖維，氧化鈦之含量較多，一般而言，「消光」中約1質量%左右、「半消光」中0.5至0.6質量%左右，故不佳。折射率為1.6以上之無機化合物之含量較佳係0.3質量%以下，更佳係0.2質量%以下，特佳係0.1質量%以下。 In the first cellulose fiber of the present invention, the content of the inorganic compound having a refractive index of 1.6 or more is 0.5% by mass or less. Different from the present invention, titanium oxide, zinc oxide, etc. are refracted in the slime tincture, solvent-spun cellulose, copper ammonia tincture, diacetate, and triacetate used in general non-woven fabrics. The powder of the inorganic compound with a high rate is added as a matting agent for suppressing gloss (or also referred to as an ultraviolet shielding agent) to the raw material during spinning. However, the cellulose-based fibers containing many of these inorganic compounds have low transparency in a wet state. Therefore, the first cellulose-based fiber of the present invention preferably contains as little inorganic compound as possible with a refractive index of 1.6 or more, and the content of the inorganic compound having a refractive index of 1.6 or more must be 0.5% by mass or less. Examples of the inorganic compound having a refractive index of 1.6 or more include titanium oxide, zinc oxide, aluminum oxide, and barium sulfate. As the cellulose fiber, a fiber classified as a so-called "bright" can be used. In contrast, fibers classified as so-called "dull" and "semi-dull" have a large amount of titanium oxide. Generally, about 1% by mass in "dull" and 0.5 to 0.5 in "semi-dull" It is not good because it is about 0.6% by mass. The content of the inorganic compound having a refractive index of 1.6 or more is preferably 0.3% by mass or less, more preferably 0.2% by mass or less, and particularly preferably 0.1% by mass or less.

本發明可使用之第1纖維素系纖維係折射率為1.6以上之無機化合物之含量滿足上述條件、且灰分為5質量%以下之纖維。亦即，可列舉盡量抑制折射率為1.6以上之無機化合物之含量，同時壓低纖維素系纖維中所佔之灰分(亦即總無機化合物之量)之纖維素系纖維。此種纖維素系纖維，由於濕潤狀態下之透明感高、灰分(亦即總無機化合物之含量)低，因此親水性高、保水性/保液性優異。就滿足該條件之第1纖維素系纖維之具體例而言，可列舉DAIWABO RAYON(股)所販賣之『BH RAYON』、Lenzing公司所販賣之『Tencel(註冊商標)Skin』。 The first cellulose-based fiber that can be used in the present invention is a fiber whose content of the inorganic compound having a refractive index of 1.6 or more satisfies the above-mentioned conditions and having an ash content of 5% by mass or less. In other words, cellulose-based fibers can be mentioned while suppressing the content of the inorganic compound having a refractive index of 1.6 or more while keeping down the ash content (that is, the amount of the total inorganic compound) in the cellulose-based fibers. Such cellulose fibers have high transparency and low ash content (that is, the content of total inorganic compounds) in a wet state, so they have high hydrophilicity and excellent water retention and liquid retention properties. Specific examples of the first cellulose-based fiber that satisfies this condition include "BH RAYON" sold by Daiwabo Rayon, and "Tencel (registered trademark) Skin" sold by Lenzing.

本發明可使用之其他第1纖維素系纖維，折射率為1.6以上之無機化合物之含量滿足上述條件、折射率未達1.6之無機化合物之含量為5質量%以上且50質量%以下、並且灰分大於5質量%且50質量%以下之纖維。亦即，可列舉盡量抑制折射率為1.6以上之無機化合物之含量，同時含有低折射率之無機化合物之纖維素系纖維。此種纖維素系纖維，由於在濕潤狀態下之透明感高、灰分(亦即總無機化合物之含量)高，因此纖維成為柔軟的纖維，所得之不織布亦成為柔軟的不織布。就折射率未達1.6之無機化合物之例而言，可列舉二氧化矽、以二氧化矽為主成分之礦物(例如矽藻土)、矽酸鈉、硫酸鈉等。就滿足該條件之第1纖維素系纖維之具體例而言，可列舉DAIWABO RAYON(股)所販賣之『FR』、『FRL』。 In the other first cellulose fiber that can be used in the present invention, the content of the inorganic compound having a refractive index of 1.6 or more satisfies the above conditions, and the content of the inorganic compound having a refractive index of less than 1.6 is 5 mass% to 50 mass%, and the ash content Fibers greater than 5% by mass and less than 50% by mass. That is, cellulose fibers containing inorganic compounds having a low refractive index as much as possible while suppressing the content of the inorganic compounds having a refractive index of 1.6 or more can be mentioned. Such a cellulose-based fiber has high transparency in a wet state and high ash content (that is, the content of total inorganic compounds). Therefore, the fiber becomes a soft fiber, and the obtained nonwoven fabric also becomes a soft nonwoven fabric. Examples of inorganic compounds having a refractive index of less than 1.6 include silicon dioxide, minerals (for example, diatomaceous earth) containing silicon dioxide as main components, sodium silicate, sodium sulfate, and the like. Specific examples of the first cellulose-based fiber that satisfies this condition include "FR" and "FRL" sold by Daiwabo Rayon.

第1纖維素系纖維較佳係具有親水性，因此較佳係實質上不含羧基或羧基甲基者。 Since the first cellulose-based fiber is preferably hydrophilic, it is preferably one that does not substantially contain a carboxyl group or a carboxymethyl group.

第1纖維素系纖維之纖維長度可適當地在20mm以上且110mm以下之範圍中選擇。該纖維長度可獲得容積高、良好的握持感及處理性，又，可獲得後述藉由水流交纏處理容易使纖維間交纏、用手拿著時有韌性同時手感柔軟、且透明感高之薄片。第1纖維素系纖維可為所謂的短纖維(staple fiber)。第1纖維素系纖維之纖維長度較佳係28mm以上且96mm以下，更佳係32mm以上且72mm以下，特佳係38mm以上且64mm以下。 The fiber length of the first cellulose-based fiber can be appropriately selected from a range of 20 mm to 110 mm. This fiber length can obtain high volume, good grip and handleability, and also can be easily entangled between fibers by the water entanglement treatment described later. It has tenacity when held by hand and is soft and transparent. Of thin slices. The first cellulose-based fiber may be a so-called staple fiber. The fiber length of the first cellulose-based fiber is preferably 28 mm or more and 96 mm or less, more preferably 32 mm or more and 72 mm or less, and particularly preferably 38 mm or more and 64 mm or less.

從獲得高透明感之觀點而言，第1纖維素系 纖維之纖維細度係以粗者為佳。認為當纖維細度較粗時，纖維根數減少，光的漫反射降低。然而，當纖維細度過粗時，對皮膚之密著性(貼合性)降低，使肌膚觸感變差(刺痛)。第1纖維素系纖維之纖維細度無特別限定，例如0.4dtex以上且4.4dtex以下，較佳係0.6dtex以上且3.3dtex以下，特佳係0.8dtex以上且2.8dtex以下。 From the viewpoint of obtaining high transparency, the first cellulose type The fineness of the fiber is preferably thick. It is considered that when the fiber fineness is coarse, the number of fibers is reduced, and diffuse reflection of light is reduced. However, when the fiber fineness is too thick, the adhesion to the skin (adhesiveness) decreases, and the skin feels worse (stinging). The fiber fineness of the first cellulose-based fiber is not particularly limited, and is, for example, 0.4 dtex or more and 4.4 dtex or less, preferably 0.6 dtex or more and 3.3 dtex or less, and particularly preferably 0.8 dtex or more and 2.8 dtex or less.

熱接著性纖維係指藉由熱處理而至少部分熔融之纖維。熱處理溫度可因應熱接著性纖維之成分而適當地選擇。藉由該熱接著性纖維，構成纖維素系混合纖維層之纖維之交點之至少一部分熱接著(固定)。纖維素系混合纖維層具有多個經熱接著之纖維交點(固定點)，有助於最終所得之不織布在濕潤狀態下之處理性(機械強度、彈性等，甚至濕潤狀態下之展開性及耐延展性)之提升。纖維素系混合纖維層(本實施形態中，即含浸化妝料之皮膚被覆片用不織布整體)中之熱接著性纖維之含量只要為8質量%以上且40質量%以下即可，若欲獲得更高的處理性，較佳係在無損最終所得不織布在濕潤狀態下之透明感之範圍下含量高者，例如9質量%以上且37質量%以下，更佳係10質量%以上且35質量%以下，特佳係10質量%以上且32質量%以下。 Thermally bonded fibers are fibers that are at least partially melted by heat treatment. The heat treatment temperature can be appropriately selected in accordance with the composition of the heat-adhesive fiber. By this heat-adhesive fiber, at least a part of the intersection of the fibers constituting the cellulose-based mixed fiber layer is heat-adhered (fixed). The cellulose-based mixed fiber layer has a plurality of heat-bonded fiber intersections (fixing points), which helps the final non-woven fabric to be rational in the wet state (mechanical strength, elasticity, etc., and even expandability and resistance in the wet state) Ductility). The content of the heat-adhesive fibers in the cellulose-based mixed fiber layer (in the present embodiment, that is, the entire non-woven fabric for skin covering sheet impregnated with cosmetics) is only required to be 8% by mass or more and 40% by mass or less. High handling properties, preferably those with a high content in the range of non-destructive, finally obtained non-woven fabric in a wet state, such as 9 mass% or more and 37 mass% or less, more preferably 10 mass% or more and 35 mass% or less Specially good quality is 10% by mass or more and 32% by mass or less.

熱接著性纖維，典型上為合成纖維，較佳係含有熔點較高(例如超過140℃)之熱可塑性樹脂之成分(以下，稱為「高熔點成分」)、與熔點比高熔點成分低之(例如140℃以下)熱可塑性樹脂之成分(以下，稱為「低熔點成 分」)，且低熔點成分佔有纖維表面之至少一部分之複合纖維。熔點係成為纖維後之樹脂之熔點，可由依據JIS K7121(1987)所測定之DSC曲線來求取。藉由在未達高熔點成分之熔點且低熔點成分之熔點以上之溫度將該複合纖維熱處理，可殘留高熔點成分同時將低熔點成分熔融而與其他纖維熔接，因此可將纖維間確實地接合。 Thermoadhesive fibers are typically synthetic fibers, preferably containing thermoplastic resin components (hereinafter referred to as "high melting point components") having a higher melting point (for example, exceeding 140 ° C), and those having a lower melting point than the high melting point components. (E.g., 140 ° C or lower) The component of the thermoplastic resin (hereinafter referred to as "low melting point Min "), and the low-melting-point component is a composite fiber that occupies at least a part of the fiber surface. The melting point is the melting point of the resin after it becomes a fiber, and can be obtained from a DSC curve measured in accordance with JIS K7121 (1987). The composite fiber is heat-treated at a temperature not higher than the melting point of the high-melting component and the melting point of the low-melting component. The high-melting component can be left while the low-melting component is melted and fused with other fibers. Therefore, the fibers can be reliably bonded. .

高熔點成分係具有與低熔點成分之間之充分的熔點差，較佳係5℃以上之熔點差，更佳係10℃以上之熔點差，較佳係在將低熔點成分熔融之溫度不會因熱而變形等者。高熔點成分可為聚烯烴系樹脂或聚酯系樹脂，低熔點成分可為具有比高熔點成分低之熔點之聚烯烴系樹脂。就高熔點成分/低熔點成分之具體組合而言，可列舉聚丙烯/聚乙烯、聚丙烯/乙烯-丙烯共聚物、聚對苯二甲酸乙二酯/聚乙烯、聚對苯二甲酸乙二酯/乙烯-丙烯共聚物等。聚乙烯包含高密度聚乙烯、低密度聚乙烯、直鏈狀低密度聚乙烯等。 The high melting point component has a sufficient melting point difference with the low melting point component, preferably a melting point difference of 5 ° C or higher, more preferably a melting point difference of 10 ° C or higher, and is preferably not at a temperature at which the low melting point component is melted. Deformation due to heat, etc. The high-melting component may be a polyolefin-based resin or a polyester-based resin, and the low-melting component may be a polyolefin-based resin having a lower melting point than the high-melting component. Specific combinations of the high melting point component and the low melting point component include polypropylene / polyethylene, polypropylene / ethylene-propylene copolymer, polyethylene terephthalate / polyethylene, and polyethylene terephthalate. Ester / ethylene-propylene copolymers and the like. Polyethylene includes high-density polyethylene, low-density polyethylene, and linear low-density polyethylene.

更詳細而言，熱接著性纖維可為鞘芯型複合纖維。鞘芯型複合纖維係由芯部與鞘部之相異的2個成分而構成之複合纖維，芯部與鞘部之配置無特別限定，亦即，纖維剖面中，可為芯成分存在1處之單芯、亦可為芯成分存在2處以上之多芯。又，纖維剖面中，芯成分與鞘成分之位置關係，可為芯成分與鞘成分以同心圓狀配置之同心圓型，可為芯成分偏離而配置之偏心型，亦可為芯成分與鞘成分並排配置之並列型(亦稱為並排(side by side))。 本發明之含浸化妝料之皮膚被覆片用不織布中，由於必須以更少之熱接著纖維之含量，使不織布整體均勻地，某種程度強力地將纖維間熱接著，故較佳係使用低熔點成分均勻地分布於纖維表面之具有同心圓型纖維剖面之鞘芯型複合纖維。 More specifically, the heat-adhesive fiber may be a sheath-core composite fiber. The sheath-core type composite fiber is a composite fiber composed of two different components between the core portion and the sheath portion. The arrangement of the core portion and the sheath portion is not particularly limited, that is, there may be one core component in the fiber cross section. A single core may be a multi-core having two or more core components. In the fiber cross section, the positional relationship between the core component and the sheath component may be a concentric circle type in which the core component and the sheath component are arranged concentrically, an eccentric type in which the core component is deviated from the core component, or a core component and a sheath. A side-by-side type (also called side by side) in which components are arranged side by side. In the non-woven fabric for skin covering sheet impregnated with the cosmetic material of the present invention, since the content of the fiber must be adhered with less heat, the entire non-woven fabric is uniformly and strongly bonded between the fibers to a certain degree, so it is preferable to use a low melting point. Sheath-core type composite fiber having a concentric circular fiber cross section uniformly distributed on the fiber surface.

鞘芯型複合纖維，可由例如，含有第1聚烯烴系樹脂或聚酯系樹脂(高熔點成分)之芯部、與含有具有比該第1聚烯烴系樹脂或聚酯系樹脂之熔點(高熔點成分)低的熔點之第2聚烯烴系樹脂(低熔點成分)之鞘部而構成。具體上，高熔點成分可為聚丙烯、聚甲基戊烯、聚對苯二甲酸乙二酯、聚對苯二甲酸丙二酯等，較佳係聚丙烯，低熔點成分可為高密度聚乙烯、低密度聚乙烯、直鏈狀低密度聚乙烯、乙烯-丙烯共聚物、聚丁烯-1等，較佳係高密度聚乙烯。 The sheath-core type composite fiber can be composed of, for example, a core containing a first polyolefin-based resin or a polyester-based resin (high-melting point component) and a resin having a higher melting point (higher than that of the first polyolefin-based resin or polyester-based resin). The second polyolefin-based resin (low melting point component) having a low melting point has a sheath portion. Specifically, the high-melting-point component may be polypropylene, polymethylpentene, polyethylene terephthalate, polytrimethylene terephthalate, etc., preferably polypropylene, and the low-melting-point component may be high-density polymer. Ethylene, low density polyethylene, linear low density polyethylene, ethylene-propylene copolymer, polybutene-1 and the like are preferably high density polyethylene.

從獲得高透明感之觀點而言，鞘芯型複合纖維之纖維細度係以粗者為佳。認為當纖維細度較粗時，纖維根數減少，光的漫反射降低。然而，當纖維細度過粗時，由於熱接著之纖維交點(固定點)之數量減少，故有處理性提升效果降低之虞。並且，鞘芯型複合纖維之纖維細度過粗時，會有不織布之觸感變硬、使不織布與肌膚接觸時之刺激感(例如刺痛之觸感)變強、或變得不適宜作為含浸化妝料之皮膚被覆片之基布之虞。鞘芯型複合纖維之纖維細度，例如0.5dtex以上且4.0dtex以下，更佳係0.8dtex以上且3.6dtex以下，特佳係1.2dtex以上且2.8dtex以下， 最佳係1.4dtex以上且2.6dtex以下。 From the viewpoint of obtaining high transparency, the fiber fineness of the sheath-core type composite fiber is preferably thick. It is considered that when the fiber fineness is coarse, the number of fibers is reduced, and diffuse reflection of light is reduced. However, when the fiber fineness is too thick, the number of fiber-crossing points (fixed points) that are thermally bonded is reduced, so there is a possibility that the effect of improving the handleability may be reduced. In addition, when the fiber fineness of the sheath-core type composite fiber is too thick, the touch of the non-woven fabric becomes hard, the irritation feeling (such as the tingling touch) of the non-woven fabric becomes strong when it comes into contact with the skin, or it becomes unsuitable as There is a concern that the base cloth of the skin covering sheet impregnated with the cosmetic. The fiber fineness of the sheath-core composite fiber is, for example, 0.5 dtex or more and 4.0 dtex or less, more preferably 0.8 dtex or more and 3.6 dtex or less, and particularly preferably 1.2 dtex or more and 2.8 dtex or less. The optimum range is 1.4 dtex or more and 2.6 dtex or less.

又，熱接著性纖維可為源自分割型複合纖維之纖維。分割型複合纖維係由2個以上之成分所構成之複合纖維，且可藉由分割從1根纖維形成複數根之纖維細度更小的纖維之纖維。「源自分割型複合纖維之纖維」係指藉由分割型複合纖維之分割所形成之分割前之僅由一個區段(section)所構成之單一纖維及由2個以上之區段所構成之纖維、還有1根分割型複合纖維之一部分雖被分割但其他部分完全未分割之纖維。或者，纖維素系混合纖維層中只要含有藉由分割型複合纖維之分割所形成之纖維，當有1根分割型複合纖維完全未分割之情況，此種完全未分割之分割型複合纖維亦包含在源自分割型複合纖維之纖維中。 The heat-adhesive fiber may be a fiber derived from a split type composite fiber. Divided composite fibers are composite fibers composed of two or more components, and by dividing one fiber, a plurality of fibers having a smaller fiber fineness can be formed. "Fibers derived from split-type composite fibers" refers to a single fiber composed of only one section and a combination of two or more sections before the split formed by the split-type composite fibers. Fiber, and a split composite fiber, in which one part is divided but the other part is completely undivided. Alternatively, as long as the cellulose-based mixed fiber layer contains fibers formed by division of the division type composite fiber, when one division type composite fiber is completely undivided, such completely undivided division type composite fiber also includes Among fibers derived from split type composite fibers.

分割型複合纖維，具體上具有：纖維剖面中，構成成分中至少1成分區分為2個以上，構成成分之至少一部分露出纖維表面，且該露出部分於纖維之長度方向連續地形成之纖維剖面構造。 The split type composite fiber specifically has a fiber cross-sectional structure in which at least one of the constituent components is divided into two or more in the fiber cross section, at least a part of the constituent components is exposed on the fiber surface, and the exposed portion is formed continuously in the length direction of the fiber. .

例如，分割型複合纖維可由第1聚烯烴系樹脂或聚酯系樹脂(高熔點成分)、與具有比該第1聚烯烴系樹脂或聚酯系樹脂(高熔點成分)之熔點低之熔點之第2聚烯烴系樹脂(低熔點成分)之組合而構成。具體上，高熔點成分可為聚丙烯、聚甲基戊烯、聚對苯二甲酸乙二酯、聚對苯二甲酸丙二酯等，較佳係聚對苯二甲酸乙二酯，低熔點成分可為高密度聚乙烯、低密度聚乙烯、直鏈狀低密度 聚乙烯、乙烯-丙烯共聚物、聚丁烯-1等，較佳係高密度聚乙烯。 For example, the split type composite fiber may be formed by a first polyolefin resin or polyester resin (high melting point component) and a melting point lower than the melting point of the first polyolefin resin or polyester resin (high melting point component). A combination of the second polyolefin-based resin (low melting point component). Specifically, the high melting point component may be polypropylene, polymethylpentene, polyethylene terephthalate, polytrimethylene terephthalate, etc., preferably polyethylene terephthalate, with a low melting point. Composition can be high density polyethylene, low density polyethylene, linear low density Polyethylene, ethylene-propylene copolymer, polybutene-1, and the like are preferably high-density polyethylene.

分割型複合纖維之纖維細度只要係在分割為各成分時(即，各區段成為一根纖維時)提供纖維細度為0.6dtex以下(較佳係纖維細度0.5dtex以下)之極細纖維者即可，無特別限定。本發明中，就源自分割型複合纖維之纖維而言，含有由低熔點成分所構成之極細纖維，此係將纖維彼此之交點之至少一部分熱接著。由低熔點成分所構成之極細纖維之纖維細度為0.6dtex以下時，因熱接著點小而不易使不織布過硬，故不織布之質感不易受損。 The fiber fineness of the split type composite fiber is only required to provide ultrafine fibers with a fiber fineness of 0.6 dtex or less (preferably, a fiber fineness of 0.5 dtex or less) when it is divided into various components (that is, when each section becomes a fiber). Those may be used without any particular limitation. In the present invention, the fibers derived from the split-type composite fiber include ultrafine fibers composed of a low-melting point component, and this is performed by thermally bonding at least a part of the intersection points of the fibers. When the fiber fineness of the ultra-fine fibers composed of low melting point components is 0.6 dtex or less, it is difficult to make the non-woven fabric too hard due to the small thermal bonding point, so the texture of the non-woven fabric is not easily damaged.

欲產生此種極細纖維，分割型複合纖維之纖維細度較佳係1.1dtex以上且5.8dtex以下，更佳係1.3dtex以上且4.8dtex以下，再更佳係1.4dtex以上且3.6dtex以下，最佳係1.6dtex以上且2.8dtex以下。又，分割型複合纖維中之各成分的分割數(即，複合纖維中之區段數量)，例如，較佳係4以上且32以下，更佳係4以上且20以下，最佳係6以上且16以下。若分割數小，為了形成纖維細度0.6dtex以下之極細纖維，必須使分割前之纖維細度小。極細纖維之纖維細度之下限，無特別限定，較佳係0.05dtex以上。 To produce such ultrafine fibers, the fiber fineness of the split composite fiber is preferably 1.1 dtex or more and 5.8 dtex or less, more preferably 1.3 dtex or more and 4.8 dtex or less, and still more preferably 1.4 dtex or more and 3.6 dtex or less. The best line is above 1.6dtex and below 2.8dtex. The number of divisions of each component in the split-type composite fiber (that is, the number of segments in the composite fiber) is, for example, preferably 4 or more and 32 or less, more preferably 4 or more and 20 or less, and most preferably 6 or more. And 16 or less. If the number of divisions is small, in order to form extremely fine fibers having a fiber fineness of 0.6 dtex or less, the fiber fineness before division must be made small. The lower limit of the fiber fineness of the ultrafine fibers is not particularly limited, but is preferably 0.05 dtex or more.

區段之形狀無特別限定。例如，分割型複合纖維可為楔形(wedge type)區段排列為菊花狀者。或者，分割型複合纖維可為纖維剖面中各區段排列為層狀者。又，分割型複合纖維可為在觀察纖維剖面時不具有於長度 方向連續之空洞部分之所謂的實心分割型複合纖維、或者具有於長度方向連續之1處以上之空洞部分之所謂的中空分割型複合纖維。 The shape of the segment is not particularly limited. For example, the split type composite fiber may be a wedge type segment arranged in a chrysanthemum shape. Alternatively, the split type composite fiber may be one in which each section in the fiber cross section is arranged in a layered manner. In addition, the split type composite fiber may not have a length when the fiber cross section is observed. The so-called solid split-type composite fibers having continuous hollow portions in the direction or the so-called hollow split-type composite fibers having hollow portions continuous at one or more places in the longitudinal direction.

如上述之構成鞘芯型複合纖維或分割型複合纖維之低熔點成分與高熔點成分之容積比，無特別限定，例如可為2：8至8：2，較佳係3：7至7：3，更佳係35：65至65：35(低熔點成分：高熔點成分)。 The volume ratio of the low melting point component to the high melting point component constituting the sheath-core type composite fiber or the split type composite fiber as described above is not particularly limited, and may be, for example, 2: 8 to 8: 2, preferably 3: 7 to 7: 3. More preferably, 35:65 to 65:35 (low melting point component: high melting point component).

纖維素系混合纖維層(本實施形態中，即不織布整體)中之熱接著性纖維之含量可在8質量%以上且40質量%以下之範圍內適當地選擇，當熱接著性纖維為鞘芯型複合纖維時，較佳係8質量%以上且35質量%以下，當熱接著性纖維為源自分割型複合纖維之纖維時，較佳係12質量%以上且40質量%以下。本發明不受任何理論拘束，較佳含量範圍會如此相異之理由認為係因分割型複合纖維會藉分割使纖維細度變細，若欲獲得與鞘芯型複合纖維相同程度之彈性(韌性)提升效果，則必須添加更多。 The content of the heat-adhesive fibers in the cellulose-based mixed fiber layer (in the present embodiment, that is, the entire nonwoven fabric) may be appropriately selected within a range of 8% by mass to 40% by mass. When the heat-adhesive fibers are sheath cores In the case of the type composite fiber, it is preferably 8% by mass or more and 35% by mass or less, and when the heat-adhesive fiber is a fiber derived from the split type composite fiber, it is preferably 12% by mass or more and 40% by mass or less. The present invention is not bound by any theory, and the reason why the preferred content range is so different is that the split-type composite fiber will be finer by splitting. If it is desired to obtain the same degree of elasticity (toughness as the sheath-core type composite fiber) ) To improve the effect, you must add more.

熱接著性纖維之纖維長度，無特別限定，例如可為20mm以上且110mm以下，較佳係容易獲得質地均勻的纖維織網，且後述藉由水流交纏處理容易使纖維間交纏之長度，代表上，可為28mm以上且96mm以下。熱接著纖維之纖維長度更佳係32mm以上且72mm以下，特佳係38mm以上且64mm以下。 The fiber length of the heat-adhesive fiber is not particularly limited, and may be, for example, 20 mm or more and 110 mm or less. It is preferable that the fiber web having a uniform texture is easily obtained, and the length of the fiber is easily entangled by the water entanglement treatment described later. On the representative, it may be 28 mm or more and 96 mm or less. The fiber length of the heat-bonded fiber is more preferably 32 mm to 72 mm, and particularly preferably 38 mm to 64 mm.

再者，前述熱接著性纖維，亦即前述鞘芯型複合纖維、或分割型複合纖維，為了不阻礙所得之含浸 化妝料之皮膚被覆片用不織布之透明感，較佳係與第1纖維素纖維同樣地，灰分滿足特定條件。亦即，前述熱接著性纖維，較佳係折射率為1.6以上之無機化合物之含量為0.5質量%以下，且灰分為5質量%以下。熱接著性纖維之灰分滿足前述條件，藉由熱接著性纖維，本發明之含浸化妝料之皮膚被覆片用不織布之透明感不易因熱接著性纖維而降低。 In addition, the thermally-adhesive fiber, that is, the sheath-core type composite fiber or the split type composite fiber, is not impaired by the impregnation obtained. The transparent feeling of the non-woven fabric for the skin covering sheet of the cosmetic is preferably the same as that of the first cellulose fiber, and the ash content satisfies a specific condition. That is, it is preferable that the content of the inorganic compound having a refractive index of 1.6 or more is 0.5% by mass or less and the ash content is 5% by mass or less of the thermal adhesive fiber. The ash content of the heat-adhesive fiber satisfies the foregoing conditions. By the heat-adhesive fiber, the transparency of the nonwoven fabric for a skin covering sheet impregnated with the cosmetic of the present invention cannot be easily reduced by the heat-adhesive fiber.

纖維素系混合纖維層，在不阻礙本發明之效果之範圍中，亦即濕潤狀態下之透明感、處理性不降低之範圍中，除了第1纖維素系纖維及熱接著性纖維之外，可含有其他纖維。就該其他纖維之例而言，可列舉紙漿、麻、絲綢、及羊毛等天然纖維；聚乙烯、聚丙烯、聚甲基戊烯、及乙烯-丙烯共聚物等聚烯烴系纖維，聚對苯二甲酸乙二酯、聚對苯二甲酸丙二酯及聚對苯二甲酸丁二酯等聚酯纖維，耐綸6及耐綸66等聚醯胺系纖維，以及丙烯酸系纖維等合成纖維及其改質物。再者，使用第1纖維素系纖維及熱接著性纖維以外之纖維(前述其他纖維)時，為了不損所得之含浸化妝料之皮膚被覆片用不織布之透明感，較佳係其他纖維與第1纖維素纖維同樣地，灰分滿足前述條件。亦即，前述其他纖維，較佳係折射率為1.6以上之無機化合物之含量為0.5質量%以下、灰分為5質量%以下。其他纖維之灰分滿足前述條件，藉由其他纖維，本發明之含浸化妝料之皮膚被覆片用不織布之透明感不易因熱接著性纖維而降低。 The cellulose-based mixed fiber layer is in a range that does not inhibit the effect of the present invention, that is, a range that does not reduce the transparency and handleability in a wet state, except for the first cellulose-based fiber and the heat-adhesive fiber. May contain other fibers. Examples of the other fibers include natural fibers such as pulp, hemp, silk, and wool; polyolefin fibers such as polyethylene, polypropylene, polymethylpentene, and ethylene-propylene copolymer; and polyparaphenylene Polyester fibers such as ethylene diformate, polytrimethylene terephthalate, and polybutylene terephthalate; polyamide-based fibers such as nylon 6 and nylon 66; and synthetic fibers such as acrylic fibers and Its modifier. In addition, when using fibers other than the first cellulose-based fibers and heat-adhesive fibers (the other fibers), in order not to impair the transparency of the nonwoven fabric for the skin-covering sheet impregnated with the obtained cosmetic, it is preferable that the other fibers and the first 1 Cellulose Fiber Similarly, the ash content satisfies the aforementioned conditions. That is, it is preferable that the other fibers have a content of an inorganic compound having a refractive index of 1.6 or more and 0.5 mass% or less and an ash content of 5 mass% or less. The ash content of the other fibers satisfies the aforementioned conditions. With the other fibers, the non-woven fabric for the skin covering sheet impregnated with the cosmetic material of the present invention cannot easily be lowered by the heat-adhesive fibers.

本實施形態中之不織布，如同上述說明由纖維素系混合纖維層之單層所構成。本實施形態之單層型之不織布之單位面積質量(實測單位面積質量)，整體設為25g/m2以上且48g/m2以下，較佳係28g/m2以上且46g/m2以下，更佳係32g/m2以上且44g/m2以下，特佳係34g/m2以上且42g/m2以下。藉此，可實現在濕潤狀態下顯示高透明感、且處理性(濕潤狀態下之展開性及耐延展性)提升之不織布。 The nonwoven fabric in this embodiment is composed of a single layer of a cellulose-based mixed fiber layer as described above. The unit area mass (measured unit area mass) of the single-layer non-woven fabric in this embodiment is 25 g / m 2 or more and 48 g / m 2 or less, preferably 28 g / m 2 or more and 46 g / m 2 or less. More preferably, it is 32 g / m 2 or more and 44 g / m 2 or less, and particularly preferably 34 g / m 2 or more and 42 g / m 2 or less. This makes it possible to realize a non-woven fabric that exhibits high transparency in a wet state, and improves handling properties (expandability and ductility in a wet state).

該本實施形態之不織布係可如下述方式製造。 The nonwoven fabric of this embodiment can be manufactured as follows.

首先，準備含有50質量%以上之纖維長度為20mm以上且110mm以下之第1纖維素系纖維、及8質量%以上且40質量%以下之熱接著性纖維之纖維素系混合纖維薄片。第1纖維素系纖維及熱接著性纖維係適用與上述相同的說明。惟，在該階段，構成纖維之交點尚未藉由熱接著性纖維熱接著，使用分割型複合纖維作為熱接著性纖維時可為未分割。該纖維素系混合纖維薄片係上述纖維素系混合纖維層之前驅物，無特別說明時，適用與纖維素系混合纖維層相同的說明。 First, a cellulose-based mixed fiber sheet containing 50% by mass or more of a first cellulose-based fiber having a fiber length of 20 mm or more and 110 mm or less, and 8% by mass or more and 40% by mass or less of a heat-adhesive fiber is prepared. The first cellulose fiber and the heat-adhesive fiber system are the same as those described above. However, at this stage, the intersection point of the constituent fibers has not yet been thermally bonded with the thermally-adhesive fiber, and when the split-type composite fiber is used as the thermal-adhesive fiber, it may be undivided. This cellulose-based mixed fiber sheet is a precursor of the above-mentioned cellulose-based mixed fiber layer. Unless otherwise specified, the same explanation as that of the cellulose-based mixed fiber layer is applicable.

該纖維素系混合纖維薄片可為織網形態，亦可為纖維間藉由交纏及/或接著等而結合之不織布之形態，在任一形態時可為單層，亦可為2層以上之積層體。纖維素系混合纖維薄片為織網時，例如可為梳棉織網，更詳細而言，可為平行織網、交叉織網、十字交叉織網、半 隨機織網及隨機織網等，較佳係平行織網。相對於氣流式(air-laid)織網、濕式織網中為完全隨機配向，梳棉織網中可賦予配向性，故適宜獲得高透明感。尤其是平行織網，纖維配向為一方向、尤其配向為縱方向(MD)之纖維多，在濕潤狀態下可獲得更高之透明感。 The cellulose-based mixed fiber sheet may be in the form of a woven mesh, or in the form of a non-woven fabric that is combined by intertwining and / or bonding between fibers. In either form, it may be a single layer or two or more layers. Laminated body. When the cellulose-based mixed fiber sheet is a woven net, for example, a carded cotton woven net, more specifically, a parallel woven net, a cross woven net, a cross woven net, and a half Random woven nets and random woven nets are preferably parallel woven nets. Compared with air-laid and wet-type woven nets, which are completely randomly oriented, carded woven nets can provide alignment, so it is suitable to obtain high transparency. Especially for parallel woven webs, there are many fibers aligned in one direction, especially in the longitudinal direction (MD), and a higher transparency can be obtained in a wet state.

接著，將僅由1片該纖維素系混合纖維薄片所構成之單層體(以下，簡稱為「單層體」)施以水流交纏處理(水針纏結(spunlace))。水流交纏處理，可藉由將單層體放置於支撐體上，對其噴射柱狀水流，使纖維彼此交纏而實施。水流交纏處理，例如可將單層體在中途(每個支撐體)倒轉，從上面側及下面側雙方噴射柱狀水流。 Next, a single-layer body (hereinafter, simply referred to as a “single-layer body”) composed of only one sheet of the cellulose-based mixed fiber sheet is subjected to a water-entanglement treatment (spunlace). The water flow entanglement treatment can be performed by placing a single layer body on a support and spraying a columnar water flow on the support body to entangle the fibers with each other. The water flow entanglement process can, for example, invert a single-layer body halfway (each support), and spray a columnar water flow from both the upper side and the lower side.

最終所得之不織布中，為了獲得高透明感，較佳係先在壓製處理前盡可能使其表面平滑。與例如針軋等其他交纏方法相比，水流交纏處理可獲得高平滑性，故較佳。 In the finally obtained nonwoven fabric, in order to obtain a high transparency, it is preferable to make the surface as smooth as possible before the pressing treatment. Compared with other entanglement methods such as needle rolling, water entanglement treatment is preferable because it can obtain high smoothness.

水流交纏處理一般可使用水壓為1MPa以上且10MPa以下之水流來實施。然而，為了提升交纏後之單層體之平滑性，較佳係設為較低水壓條件。例如，水壓較佳係設為1MPa以上且7MPa以下。又，依該水壓條件，最終所得之不織布中，可獲得高伸長性。 The water entanglement treatment can be generally performed using a water flow having a water pressure of 1 MPa or more and 10 MPa or less. However, in order to improve the smoothness of the entangled single layer body, it is preferable to set it to a low water pressure condition. For example, the water pressure is preferably 1 MPa to 7 MPa. In addition, under the water pressure conditions, high elongation can be obtained in the finally obtained nonwoven fabric.

其後，將單層體施以壓製處理及熱處理，藉此使所得之不織布之表面(上表面及下表面)平滑化、以及使熱接著性纖維之至少一部分熔融，將構成纖維之交點之至少一部分藉由熱接著性纖維而熱接著。 Thereafter, the single-layer body is subjected to a pressing treatment and a heat treatment, thereby smoothing the surface (upper and lower surfaces) of the obtained nonwoven fabric and melting at least a part of the heat-adhesive fibers to form at least the intersection points of the fibers. One part is thermally bonded by thermally bonding fibers.

壓製處理，使單層體通過一對輥間而實施，由於可連續處理故較佳。又，壓製處理較佳係當單層體為濕潤狀態時進行。纖維素系纖維之強度由於濕潤狀態者較低，又，由於纖維素系纖維彼此之氫鍵係因濕潤而被切斷，因此藉由濕潤狀態下進行壓製處理，可獲得更高的平滑性。壓製處理時使單層體含浸之液狀物無特別限定，例如可為水或任意的水性組成物等。簡單來說，可在水流交纏處理之後接著實施壓製處理，此時，水流交纏處理所使用之水使單層體含浸而形成濕潤狀態。濕潤狀態下之壓製處理可為將濕潤狀態之單層體通過一對輥間而實施者，此時，可為單層體藉由通過輥間而壓製，同時使單層體含浸之液狀物被部分去除者。濕潤狀態之單層體通過一對輥間而實施壓製處理時，較佳係以線壓150N/cm以上且550N/cm以下來壓製單層體。或者，壓製處理可藉由例如平板(平面)擠壓等來實施。此時，較佳係以壓力0.1MPa以上且0.5MPa以下來壓製單層體。 The pressing treatment is preferably carried out by passing a single layer body between a pair of rollers, since continuous processing is possible. The pressing treatment is preferably performed when the single-layer body is in a wet state. The strength of the cellulose-based fibers is low due to the wet state, and the hydrogen bonding between the cellulose-based fibers is cut off due to the wet state. Therefore, by performing the pressing treatment in the wet state, higher smoothness can be obtained. The liquid substance which impregnates a monolayer body at the time of a press process is not specifically limited, For example, it can be water or arbitrary aqueous composition. In brief, the water entanglement treatment may be followed by a pressing treatment. At this time, the water used in the water entanglement treatment impregnates the monolayer body to form a wet state. The pressing treatment in the wet state can be performed by passing the single layer body in the wet state through a pair of rollers. At this time, the single layer body can be pressed by passing between the rollers and the single layer body can be impregnated with a liquid substance. Partially removed. When a single-layer body in a wet state is pressed between a pair of rollers, the single-layer body is preferably pressed with a linear pressure of 150 N / cm or more and 550 N / cm or less. Alternatively, the pressing process can be performed by, for example, flat (flat) pressing. At this time, it is preferable to press the monolayer body at a pressure of 0.1 MPa to 0.5 MPa.

熱處理係藉由熱接著性纖維使纖維彼此熱接著，故在熱接著性纖維至少部分熔融或軟化之溫度實施。例如，使用複合纖維作為熱接著性纖維時，可在複合纖維之低熔點成分之熔點以上且未達複合纖維之高熔點成分之熔點之溫度熱處理。又，藉由將熱處理溫度在此範圍內改變，可調節所得之不織布之質感、強力、及伸長性。 The heat treatment is performed because the fibers are thermally bonded to each other by the thermally-adhesive fibers. Therefore, the thermally-adhesive fibers are at least partially melted or softened. For example, when a composite fiber is used as the heat-adhesive fiber, the heat treatment can be performed at a temperature not lower than the melting point of the low-melting point component of the composite fiber and not higher than the melting point of the high-melting point component of the composite fiber. In addition, by changing the heat treatment temperature within this range, the texture, strength, and elongation of the obtained nonwoven fabric can be adjusted.

壓製處理及熱處理可依序實施，亦可同時實施。依序實施壓製處理及熱處理時，此等之間可將單層 體適當地乾燥。乾燥溫度較佳係設定為100℃以上且160℃以下，更佳係設定為120℃以上且150℃以下，特佳係設定為130℃以上且145℃以下。 The pressing treatment and the heat treatment may be performed sequentially or simultaneously. When sequential pressing and heat treatments are performed, a single layer can be placed between these The body is properly dried. The drying temperature is preferably 100 ° C or higher and 160 ° C or lower, more preferably 120 ° C or higher and 150 ° C or lower, and particularly preferably 130 ° C or higher and 145 ° C or lower.

結果，纖維素系混合纖維薄片成為纖維素系混合纖維層，藉此，可製造本實施形態之不織布。 As a result, the cellulose-based mixed fiber sheet becomes a cellulose-based mixed fiber layer, whereby the nonwoven fabric of this embodiment can be manufactured.

本實施形態之不織布係適宜使用作為含浸化妝料之皮膚被覆片之基材，含浸液狀化妝料，貼附於人體皮膚等而使用。 The non-woven fabric of the present embodiment is suitable for use as a base material of a skin covering sheet impregnated with a cosmetic, an impregnated liquid cosmetic, and attached to human skin.

液狀化妝料，一般係水性組成物，較佳係作為有效成分而含有例如保濕成分、清潔成分、止汗成分、香味成分、美白成分、促進血液循環成分、抗紫外線成分、瘦身成分等，但不限於該等，可含有期待對皮膚發揮特定作用之任意成分。 Liquid cosmetics are generally water-based compositions, and preferably contain, as active ingredients, moisturizing ingredients, cleaning ingredients, antiperspirants, fragrance ingredients, whitening ingredients, blood circulation promoting ingredients, anti-ultraviolet ingredients, and slimming ingredients, but It is not limited to these, and may contain arbitrary components which are expected to exert a specific effect on the skin.

液狀化妝料之含浸量，相對於基材100質量份，可將化妝料設為150質量份以上且2500質量份以下之範圍，較佳係設為400質量份以上、2000質量份以下之範圍。藉由將化妝料含浸量設為該範圍，可對皮膚供給充分量之有效成分，同時避免液滴落等使用時之不良狀況。最適宜之化妝料含浸量係依含浸化妝料之皮膚被覆片之性質(尤其吸水性)來適當地決定。較佳態樣中，設定之使用時間中，以存在含浸化妝料之皮膚被覆片之飽和量以上的化妝料之方式調整化妝料含浸量。 The impregnation amount of the liquid cosmetic material can be set to a range of 150 mass parts or more and 2500 mass parts or less with respect to 100 parts by mass of the base material, preferably in a range of 400 mass parts or more and 2000 mass parts or less. . By setting the impregnation amount of the cosmetic material within this range, a sufficient amount of effective ingredients can be supplied to the skin, and at the same time, adverse conditions during use such as dripping can be avoided. The most suitable impregnation amount of the cosmetic material is appropriately determined depending on the properties (particularly, water absorption) of the skin-coated sheet impregnated with the cosmetic material. In a preferred aspect, during the set use time, the impregnation amount of the cosmetic material is adjusted in such a manner that there is a cosmetic material having a saturated amount of the skin covering sheet impregnated with the cosmetic material.

含浸化妝料之皮膚被覆片可為面膜形態。面膜係加工為適宜被覆臉之形狀，例如，相當於眼、鼻及 口之部分，視需要而設有打穿部或切入部。或者，面膜可加工為僅覆蓋臉的一部分(例如，眼角、嘴邊、鼻或臉頰)之形狀。又或者，面膜可作為分別覆蓋2個或2個以上的部分之薄片套組而提供。 The skin covering sheet impregnated with the cosmetic material may be in the form of a mask. The mask is processed into a shape suitable for covering the face, for example, equivalent to eyes, nose and The mouth part is provided with a puncture part or a cut-in part as needed. Alternatively, the mask may be processed into a shape that covers only a part of the face (for example, the corners of the eyes, lips, nose, or cheeks). Alternatively, the mask may be provided as a sheet set covering two or more parts, respectively.

含浸化妝料之皮膚被覆片係在摺疊1次以上之狀態，以1片或複數片來封入包裝(例如包裝袋或容器)中。又，含浸化妝料之皮膚被覆片中，可於含浸液狀化妝料之不織布之單面或雙面積層塑膠製等之薄膜。該薄膜可為在使用(貼附於皮膚)時剝離者。 The skin covering sheet impregnated with the cosmetic material is folded once or more, and is enclosed in a package (for example, a packaging bag or container) with one or a plurality of pieces. In addition, the skin covering sheet impregnated with the cosmetic material may be a film made of a single-sided or double-area layer plastic made of a non-woven fabric impregnated with a liquid cosmetic material. The film may be peeled off when used (attached to the skin).

本實施形態之不織布，在濕潤狀態下顯示高透明感，同時處理性提升、不易延展，因此含浸化妝料後容易從摺疊狀態展開，又，可使從摺疊狀態展開時產生之不織布之延展，即變形程度較小。 The non-woven fabric of this embodiment shows a high transparency in a wet state, and at the same time, the handleability is improved and it is not easy to expand, so it is easy to unfold from the folded state after impregnating the cosmetic, and it can also extend the non-woven fabric generated when unfolded from the folded state, that is, The degree of deformation is small.

[實施形態2] [Embodiment 2]

本實施形態係關於由1層或2層之纖維素系混合纖維層、與其他纖維素系纖維層或長纖維不織布層所構成之積層型含浸化妝料之皮膚被覆片用不織布及其製造方法以及使用該不織布之含浸化妝料之皮膚被覆片。 This embodiment relates to a non-woven fabric for a skin-coated sheet impregnated with a laminated layer composed of one or two cellulose-based mixed fiber layers, and other cellulose-based fiber layers or long-fiber nonwoven fabric layers, and a method for producing the same, and a method for producing the same. A skin covering sheet using the non-woven impregnated cosmetic.

首先，以下說明形成本實施形態之含浸化妝料之皮膚被覆片用不織布之積層構造之纖維素系混合纖維層、和與其擇一地組合之其他纖維素系纖維層及長纖維不織布層。 First, a cellulose-based mixed fiber layer having a laminated structure of a nonwoven fabric for forming a skin-impregnated cosmetic-impregnated cosmetic sheet according to this embodiment, and other cellulose-based fiber layers and long-fiber nonwoven fabric layers combined with the cellulose-based mixed fiber layer will be described below.

(纖維素系混合纖維層) (Cellulose-based mixed fiber layer)

纖維素系混合纖維層係適用與實施形態1中之說明相同的說明。使用2層纖維素系混合纖維層時，各層分別適用與實施形態1中之說明相同的說明，其可互為相同或相異。惟，本實施形態中，將最終所得之不織布整體中之第1纖維素系纖維之含量設為40.5質量%以上，熱接著性纖維之含量設為8質量%以上。藉由將不織布整體中之第1纖維素系纖維之含量設為40.5質量%以上，較佳係設為50質量%以上，不織布整體中，濕潤狀態下可顯示高透明感。又，藉由將不織布整體中之熱接著性纖維之含量設為8質量%以上，較佳係設為9質量%以上，不織布整體中，濕潤狀態下可獲得高處理性。較佳係以可達成高透明感與優異處理性之方式，因應不織布整體之單位面積質量來選擇不織布整體中之第1纖維素系纖維及熱接著性纖維之各含量。 For the cellulose-based mixed fiber layer system, the same explanation as that in the first embodiment is applied. When two cellulose-based mixed fiber layers are used, the same explanation as that in Embodiment 1 is applied to each layer, and they may be the same or different from each other. However, in this embodiment, the content of the first cellulose-based fibers in the entire nonwoven fabric finally obtained is set to 40.5 mass% or more, and the content of the heat-adhesive fibers is set to 8 mass% or more. By setting the content of the first cellulose-based fiber in the entire non-woven fabric to 40.5 mass% or more, preferably 50 mass% or more, the entire non-woven fabric can exhibit a high transparency in a wet state. In addition, by setting the content of the heat-adhesive fiber in the entire nonwoven fabric to 8% by mass or more, preferably 9% by mass or more, the entire nonwoven fabric can obtain high handleability in a wet state. It is preferable to select the respective contents of the first cellulose-based fiber and the heat-adhesive fiber in the entire nonwoven fabric in accordance with the mass per unit area of the entire nonwoven fabric so as to achieve high transparency and excellent handleability.

(其他纖維素系纖維層) (Other cellulose fiber layers)

其他纖維素系纖維層係與1層或2層之上述纖維素系混合纖維層積層，且與纖維素系混合纖維層有所區別者。其他纖維素系纖維層係含有多於50質量%之纖維長度為0.5mm以上且未達20mm之第2纖維素系纖維或纖維長度超過110mm之第3纖維素系纖維之層。第2纖維素系纖維係以纖維素為基礎而構成，並且只要纖維長度為0.5mm以上且未達20mm則可使用任意之適當的纖維。就含有50質 量%以上之該第2纖維素系纖維之其他纖維素系纖維層而言，可列舉以第2纖維素系纖維為主體之濕式不織布作為一例，認為由於該濕式不織布保水性高，因此可獲得防止在使用含浸化妝料之皮膚被覆片時化妝料滴垂落下之『液滴落』之效果。其他纖維素系纖維層中之第2纖維素系纖維之含量只要為超過50質量%以上者即可，例如可為60質量%以上，更可為70質量%以上。 Other cellulose-based fiber layers are laminated with one or two of the above-mentioned cellulose-based mixed fiber layers, and are different from the cellulose-based mixed fiber layer. The other cellulose-based fiber layer is a layer containing more than 50% by mass of a second cellulose-based fiber having a fiber length of 0.5 mm or more and less than 20 mm or a third cellulose-based fiber having a fiber length exceeding 110 mm. The second cellulose-based fiber is based on cellulose, and any appropriate fiber can be used as long as the fiber length is 0.5 mm or more and less than 20 mm. Contains 50 quality For the other cellulose-based fiber layer of the second cellulose-based fiber in an amount of not less than 2%, a wet nonwoven fabric having the second cellulose-based fiber as a main body can be cited as an example. The effect of preventing "dropping" of the cosmetic material from falling down when the skin covering sheet impregnated with the cosmetic material is used. The content of the second cellulose-based fiber in the other cellulose-based fiber layer is only required to be more than 50% by mass, and may be, for example, 60% by mass or more, and more preferably 70% by mass or more.

第2纖維素系纖維可為例如紙漿纖維。一般而言，紙漿纖維之纖維細度係1.0至4.0dtex左右，纖維長度係0.8至10mm左右，亦可使用具有該範圍外之纖維細度及/或纖維長度之紙漿纖維。紙漿纖維顯示高到某種程度之透明感，且濕潤狀態下顯示適度的強度與伸長性，因此，維持最終所得之不織布在濕潤狀態下之透明感為高者，同時有助於其處理性之提升。又，紙漿纖維有保液性高之優點。 The second cellulose-based fiber may be, for example, a pulp fiber. Generally speaking, the fiber fineness of pulp fibers is about 1.0 to 4.0 dtex, and the fiber length is about 0.8 to 10 mm. Pulp fibers having fiber fineness and / or fiber length outside this range can also be used. Pulp fibers show a high degree of transparency, and show moderate strength and elongation in a wet state. Therefore, maintaining the final transparent feeling of the nonwoven fabric in a wet state is high, and it contributes to its handleability. Promotion. In addition, pulp fibers have the advantage of high liquid retention.

第3纖維素系纖維只要以纖維素為基礎而構成，且纖維長度超過110mm者，則可使用任意之適當的纖維，較佳係折射率為1.6以上之無機化合物之含量為0.5質量%以下，且灰分較佳係5質量%以下。由該第3纖維素系纖維，尤其折射率為1.6以上之無機化合物之含量為0.5質量%以下、且灰分為5質量%以下之第3纖維素系纖維所構成之纖維層在濕潤狀態下之透明感高，因此即使使不織布整體為高單位面積質量仍不易失去透明感。其他纖維素系纖維層中之第3纖維素系纖維之含量只要超過50質量% 以上者即可，例如可為60質量%以上，更可為70質量%以上。 As long as the third cellulose-based fiber is constituted based on cellulose and the fiber length exceeds 110 mm, any appropriate fiber may be used, and the content of the inorganic compound having a refractive index of 1.6 or more is preferably 0.5% by mass or less. The ash content is preferably 5 mass% or less. In a wet state, the fiber layer composed of the third cellulose fiber, especially the third cellulose fiber having a refractive index of 1.6 or more and an inorganic compound having a content of 0.5% by mass or less and an ash content of 5% by mass or less is in a wet state. Since the transparency is high, even if the entire nonwoven fabric has a high mass per unit area, it is difficult to lose the transparency. As long as the content of the third cellulose fiber in the other cellulose fiber layer exceeds 50% by mass The above may be sufficient, for example, it may be 60% by mass or more, and may be 70% by mass or more.

第3纖維素系纖維可為例如溶劑紡絲纖維素之長纖維或連續纖維(實質上連續之纖維)、或銅氨嫘縈(cupra)之長纖維或連續纖維。溶劑紡絲纖維素之長纖維、銅氨嫘縈之長纖維不僅容易顯示高透明感，藉由後述水流交纏處理，可跨越纖維素系混合纖維層與其他纖維素系纖維層之間使纖維間強固地交纏，因此維持最終所得之不織布之透明感為高者，同時有助於其處理性之提升。 The third cellulose-based fibers may be, for example, long fibers or continuous fibers (substantially continuous fibers) of solvent-spun cellulose, or long fibers or continuous fibers of cupra. Solvent-spun cellulose long fibers and copper ammonium long fibers are not only easy to show high transparency, but they can also be used to cross fibers between cellulose-based mixed fiber layers and other cellulose-based fiber layers through the water-entanglement treatment described later. They are strongly entangled with each other, so maintaining the transparency of the non-woven fabric finally obtained is high, and at the same time, it helps to improve the handleability.

從獲得高透明感之觀點而言，第3纖維素系纖維之纖維細度較佳係粗者。認為當纖維細度較粗時，纖維根數減少，光的漫反射降低。然而，當纖維細度過粗時，其他纖維素系纖維層之保水性降低，作為含浸化妝料之皮膚被覆片使用時，不僅有變得容易產生液滴落之虞，並且過粗之第3纖維素系纖維之一部份露出不織布表面時，會有使不織布與肌膚接觸時之刺激感(例如刺痛之觸感)變強、或變得不適宜作為含浸化妝料之皮膚被覆片之基布之虞。第3纖維素系纖維之纖維細度，例為如0.1dtex以上，較佳係0.3dtex以上，且特佳係4.4dtex以下。 From the viewpoint of obtaining high transparency, the fiber fineness of the third cellulose-based fiber is preferably thick. It is considered that when the fiber fineness is coarse, the number of fibers is reduced, and diffuse reflection of light is reduced. However, when the fiber fineness is too thick, the water retention of other cellulose-based fiber layers is reduced. When used as a skin covering sheet impregnated with a cosmetic, not only may there be a tendency for dripping to occur, but also the third, which is too thick. When a part of the cellulose-based fibers is exposed on the surface of the nonwoven fabric, the irritation (such as a tingling sensation) when the nonwoven fabric comes in contact with the skin becomes stronger, or it becomes unsuitable as a base for a skin covering sheet impregnated with a cosmetic Worry of cloth. The fiber fineness of the third cellulose-based fiber is, for example, 0.1 dtex or more, preferably 0.3 dtex or more, and particularly preferably 4.4 dtex or less.

然而，第2纖維素系纖維及第3纖維素系纖維係不限於上述例，亦可由纖維素系再生纖維、纖維素系半合成纖維、纖維素系天然纖維等中任一材料所構成，可因應其纖維長度而適當地選擇。 However, the second cellulose-based fiber and the third cellulose-based fiber are not limited to the examples described above, and may be composed of any of cellulose-based regenerated fibers, cellulose-based semi-synthetic fibers, and cellulose-based natural fibers. It is appropriately selected depending on the fiber length.

其他纖維素系纖維層，在不阻礙本發明之 效果之範圍中，亦即濕潤狀態下之透明感、處理性不降低之範圍中，除了第2纖維素系纖維或第3纖維素系纖維之外，可含有其他纖維。就該其他纖維之例而言，可列舉麻、絲綢、及羊毛等天然纖維；聚乙烯、聚丙烯、聚甲基戊烯、及乙烯-丙烯共聚物等聚烯烴系纖維，聚對苯二甲酸乙二酯及聚對苯二甲酸丁二酯等聚酯纖維，耐綸6及耐綸66等聚醯胺系纖維，以及丙烯酸系纖維等合成纖維及其改質物。其中，親水性纖維，具體上，較佳係已對麻、絲綢、及羊毛等天然纖維以及合成纖維施以親水化處理者等。 Other cellulose-based fiber layers do not hinder the invention In the range of the effect, that is, the range in which the feeling of transparency and handling in a wet state is not reduced, other fibers may be contained in addition to the second cellulose-based fiber or the third cellulose-based fiber. Examples of the other fibers include natural fibers such as hemp, silk, and wool; polyolefin fibers such as polyethylene, polypropylene, polymethylpentene, and ethylene-propylene copolymer; and polyterephthalic acid Polyester fibers such as ethylene glycol and polybutylene terephthalate, polyamide-based fibers such as nylon 6 and nylon 66, and synthetic fibers such as acrylic fibers and their modifications. Among them, the hydrophilic fibers are preferably those that have been subjected to hydrophilization treatment to natural fibers such as hemp, silk, and wool, and synthetic fibers.

(長纖維不織布層) (Long-fiber non-woven fabric layer)

長纖維不織布層係取代其他纖維素系纖維層來使用，與1層或2層之上述纖維素系混合纖維層積層，且與纖維素系混合纖維層有所區別者。長纖維不織布層係由纖維長度超過110mm或連續纖維、且灰分為0.5質量%以下之熱可塑性樹脂系纖維所構成之不織布層。 The long-fiber non-woven fabric layer is used in place of other cellulose-based fiber layers, and is laminated with one or two layers of the above-mentioned cellulose-based mixed fibers, and is different from the cellulose-based mixed fiber layers. The long-fiber nonwoven fabric layer is a nonwoven fabric layer composed of a thermoplastic resin-based fiber having a fiber length of more than 110 mm or continuous fibers and an ash content of 0.5% by mass or less.

藉由使構成長纖維不織布層之熱可塑性樹脂系纖維之灰分為0.5質量%以下，該長纖維不織布層成為濕潤狀態下之透明感高之層、或者濕潤狀態下不易阻礙透明感之層。前述長纖維不織布層之灰分較佳係0.3質量%以下，更佳係0.25質量%以下，特佳係0.2質量%以下，最佳係0.15質量%以下。 By making the ash content of the thermoplastic resin-based fiber constituting the long-fiber nonwoven fabric layer 0.5% by mass or less, the long-fiber nonwoven fabric layer becomes a layer with a high sense of transparency in a wet state or a layer that does not easily hinder the transparency in a wet state. The ash content of the long-fiber nonwoven fabric layer is preferably 0.3% by mass or less, more preferably 0.25% by mass or less, particularly preferably 0.2% by mass or less, and most preferably 0.15% by mass or less.

再者，本發明中，關於熱可塑性樹脂系纖維，灰分係指藉由依據JIS L10158.20(2010)之方法、或者後述方法所 測定之灰分。認為灰分係表示預定對象纖維中之總無機化合物(不依折射率)之含量者。 In the present invention, as for the thermoplastic resin-based fiber, the ash content is determined by a method according to JIS L10158.20 (2010) or a method described later. Determination of ash. The ash content is considered to mean the content of the total inorganic compound (independent of the refractive index) in the intended target fiber.

長纖維不織布層只要係包括由灰分為0.5質量%以下之熱可塑性樹脂所製造之纖維長度超過110mm之纖維或連續纖維之不織布即無特別限定(由熱可塑性樹脂所製造之纖維亦可稱為合成纖維)。就該熱可塑性樹脂而言，可使用聚丙烯、聚甲基戊烯之聚烯烴系樹脂，選自聚對苯二甲酸乙二酯、聚對苯二甲酸丁二酯、聚對苯二甲酸丙二酯、聚萘二甲酸乙二酯、聚乳酸及其共聚物等之聚酯系樹脂，選自耐綸6、耐綸12及耐綸66等之聚醯胺系樹脂；丙烯酸系樹脂；聚碳酸酯、聚縮醛、聚苯乙烯及環狀聚烯烴等工程-塑膠；以及該等之彈性體之合成樹脂。其中，從以可容易製造長纖維不織布、市售之長纖維不織布之種類多、及、不會在後述熱處理熔融為較佳之點而言，上述長纖維不織布層較佳係由熔點分別為140℃以上之聚烯烴系樹脂、聚酯系樹脂、聚醯胺系樹脂所組成之群中選出之至少1種合成樹脂所製造之長纖維不織布，更佳係由聚烯烴系樹脂及/或聚酯系樹脂所構成之長纖維不織布。長纖維不織布層之製造方法無特別限定，可使用紡絲黏合(spunbond)法所得之紡絲黏合不織布、熔噴(melt-blown)法所得之熔噴不織布、或者用靜電紡絲(electrospinning)法所製造之不織布、用纖維長度超過110mm之纖維所製造之不織布作為上述長纖維不織布層使用，較佳係紡絲黏合不織布或熔噴不織布，更佳係紡絲黏合不織布。 The long-fiber non-woven fabric layer is not particularly limited as long as it is a non-woven fabric including fibers made of a thermoplastic resin having an ash content of 0.5% by mass or less and a continuous fiber having a fiber length exceeding 110 mm (fibers made of a thermoplastic resin may also be referred to as synthetic fiber). As the thermoplastic resin, a polyolefin-based resin of polypropylene or polymethylpentene can be used, and is selected from polyethylene terephthalate, polybutylene terephthalate, and polytrimethylene terephthalate. Polyester resins such as diester, polyethylene naphthalate, polylactic acid, and copolymers thereof, selected from polyamide resins such as nylon 6, nylon 12, and nylon 66; acrylic resins; Engineering-plastics such as carbonate, polyacetal, polystyrene and cyclic polyolefin; and synthetic resins of these elastomers. Among them, the long-fiber non-woven fabric layer preferably has a melting point of 140 ° C. from the viewpoint that it is easy to manufacture long-fiber non-woven fabrics and commercially available long-fiber non-woven fabrics, and that it will not melt in a later-described heat treatment. Long-fiber non-woven fabrics made of at least one synthetic resin selected from the group consisting of polyolefin resins, polyester resins, and polyamide resins, more preferably polyolefin resins and / or polyester resins Long fiber non-woven fabric made of resin. The manufacturing method of the long-fiber non-woven fabric layer is not particularly limited, and a spun-bonded nonwoven fabric obtained by a spunbond method, a melt-blown nonwoven fabric obtained by a melt-blown method, or an electrospinning method can be used The non-woven fabric manufactured and the non-woven fabric manufactured using fibers having a fiber length exceeding 110 mm are used as the long-fiber non-woven fabric layer, preferably a spun-bonded non-woven fabric or a melt-blown non-woven fabric, and more preferably a spun-bonded non-woven fabric.

長纖維不織布層之單位面積質量無特別限定。然而，使上述1層或2層之纖維素系混合纖維層、與該長纖維不織布層積而一體化時，為了使纖維素系混合纖維層與長纖維不織布層交纏、或夾著該長纖維不織布層使纖維素系混合纖維層之構成纖維彼此交纏，長纖維不織布層較佳係有某種程度的間隔大、空隙大之不織布。因此，長纖維不織布層之單位面積質量較佳係3g/m2以上且25g/m2以下。長纖維不織布層之單位面積質量未達3g/m2時，此種不織布、最終所得之含浸化妝料之皮膚被覆片用不織布(積層體)會有生產性惡化之虞。長纖維不織布層之單位面積質量超過25g/m2時，會有所得之積層體之透明感降低之虞。長纖維不織布層之單位面積質量較佳係5g/m2以上且20g/m2以下，更佳係5g/m2以上且18g/m2以下，特佳係7g/m2以上且15g/m2以下。 The mass per unit area of the long-fiber nonwoven fabric layer is not particularly limited. However, when the above-mentioned one or two layers of the cellulose-based mixed fiber layer are integrated with the long-fiber nonwoven fabric, the cellulose-based mixed-fiber layer and the long-fiber nonwoven fabric layer are entangled or sandwiched by the long fibers. The fibrous non-woven fabric layer makes the constituent fibers of the cellulose-based mixed fiber layer entangled with each other. The long-fiber non-woven fabric layer is preferably a non-woven fabric having a large space and a large gap. Therefore, the mass per unit area of the long-fiber nonwoven fabric layer is preferably 3 g / m 2 or more and 25 g / m 2 or less. When the mass per unit area of the long-fiber non-woven fabric layer is less than 3 g / m 2 , the non-woven fabric and the finally obtained non-woven fabric (laminated body) for impregnating cosmetic products may deteriorate productivity. When the mass per unit area of the long-fiber nonwoven fabric layer exceeds 25 g / m 2 , the transparency of the obtained laminated body may decrease. The mass per unit area of the long fiber nonwoven fabric layer is preferably 5 g / m 2 or more and 20 g / m 2 or less, more preferably 5 g / m 2 or more and 18 g / m 2 or less, and particularly preferably 7 g / m 2 or more and 15 g / m 2 or more. 2 or less.

構成長纖維不織布層之熱可塑性樹脂系纖維之纖維細度無特別限定。然而，使上述1層或2層之纖維素系混合纖維層、與該長纖維不織布層積層而一體化時，若考量到使纖維素系混合纖維層與長纖維不織布層交纏、或隔著該長纖維不織布層使纖維素系混合纖維層之構成纖維彼此交纏、或者所得之積層體在濕潤狀態下之透明感，則構成長纖維不織布層之熱可塑性樹脂系纖維之纖維細度較佳係0.05dtex以上且18dtex以下。構成長纖維不織布層之熱可塑性樹脂系纖維之纖維細度未達0.05dtex時，長纖維不織布層成為緻密的纖維層，而會有與其他纖維層 之交纏性降低、或不織布整體之透明感降低之虞。構成長纖維不織布層之熱可塑性樹脂系纖維之纖維細度大於18dtex時，會有不織布之質感變硬、或不織布接觸肌膚時之刺激變大之虞。構成長纖維不織布層之熱可塑性樹脂系纖維之纖維細度更佳係0.8dtex以上且15dtex以下，特佳係1.5dtex以上且12dtex以下，最佳係3.0dtex以上且10dtex以下。 The fiber fineness of the thermoplastic resin-based fiber constituting the long-fiber nonwoven fabric layer is not particularly limited. However, when the one or two layers of the cellulose-based mixed fiber layer are integrated with the long-fiber non-woven fabric, it is considered that the cellulose-based mixed fiber layer and the long-fiber non-woven layer are entangled or interposed therebetween. The long-fiber non-woven fabric layer makes the constituent fibers of the cellulose-based mixed fiber layer entangle with each other, or the obtained laminated body has a transparent feeling in a wet state, and the fineness of the thermoplastic resin-based fiber constituting the long-fiber non-woven layer is better. It is 0.05 dtex or more and 18 dtex or less. When the fineness of the thermoplastic resin-based fibers constituting the long-fiber non-woven layer is less than 0.05 dtex, the long-fiber non-woven layer becomes a dense fiber layer, and may have other fiber layers. The entanglement property may be reduced, or the transparency of the entire nonwoven fabric may be reduced. When the fineness of the thermoplastic resin-based fiber constituting the long-fiber non-woven fabric layer is greater than 18 dtex, the texture of the non-woven fabric may be hardened, or the irritation of the non-woven fabric may increase when it contacts the skin. The fineness of the thermoplastic resin-based fiber constituting the long-fiber nonwoven fabric layer is more preferably 0.8 dtex or more and 15 dtex or less, particularly preferably 1.5 dtex or more and 12 dtex or less, and most preferably 3.0 dtex or more and 10 dtex or less.

(積層構造) (Laminated structure)

本實施形態中之不織布係由與實施形態1中所說明之纖維素系混合纖維相同之1層或2層之纖維素系混合纖維層、及如同上述說明之其他纖維素系纖維層或長纖維不織布層所構成。 The non-woven fabric in this embodiment is composed of one or two cellulose-based mixed fiber layers which are the same as the cellulose-based mixed fibers described in Embodiment 1, and other cellulose-based fiber layers or long fibers as described above. Made of non-woven layers.

更詳細而言，可為積層有1層纖維素系混合纖維層、與其他纖維素系纖維層之不織布。又，可為在2層纖維素系混合纖維層(上側纖維層及下側纖維層)之間積層有其他纖維素系纖維層(中間纖維層)之不織布。在任一情況，不織布整體中之第2纖維素系纖維或第3纖維素系纖維之含量較佳係50質量%以下。第2纖維素系纖維過多時，濕潤狀態下之透明感會降低，第3纖維素系纖維過多時，濕潤狀態下之處理性會降低。 More specifically, it may be a non-woven fabric laminated with one cellulose-based mixed fiber layer and another cellulose-based fiber layer. Moreover, the nonwoven fabric which laminated | stacked another cellulose fiber layer (intermediate fiber layer) between two cellulose fiber mixed fiber layers (an upper fiber layer and a lower fiber layer) may be sufficient as it. In either case, the content of the second cellulose-based fibers or the third cellulose-based fibers in the entire nonwoven fabric is preferably 50% by mass or less. When there are too many second cellulose fibers, the transparency in a wet state is reduced, and when there are too many third cellulose fibers, the sense in a wet state is reduced.

與1層或2層之纖維素系混合纖維層積層一體化之纖維層為其他纖維素系纖維層時，由於該其他纖維素系纖維層為柔軟且保水性優異之纖維層，與使用長纖維 不織布層時相比，成為柔軟之含浸化妝料之皮膚被覆片用不織布，可獲得即使裝配含浸化妝料之皮膚被覆片後，經過某種程度的時間，薄片仍不易乾燥之含浸化妝料之皮膚被覆片用不織布。 When the fiber layer integrated with one or two cellulose-based mixed fiber layers is another cellulose-based fiber layer, since the other cellulose-based fiber layer is a soft and excellent water-retaining fiber layer, and the use of long fibers Compared with the non-woven layer, the non-woven fabric for the skin covering sheet which becomes a soft impregnated cosmetic can obtain the skin covering of the impregnated cosmetic with the sheet which is not easy to dry even after a certain period of time even after the skin covering sheet with the impregnated cosmetic is assembled. Non-woven cloth.

或者，可為積層有1層纖維素系混合纖維層、與長纖維不織布層之不織布。又，可為在2層之纖維素系混合纖維層(上側纖維層及下側纖維層)之間積層有長纖維不織布層(中間纖維層)之不織布。在任一情況，不織布整體中，纖維長度超過110mm或連續纖維且灰分為0.5質量%以下之熱可塑性樹脂系纖維之含量較佳係50質量%以下。第2纖維素系纖維過多時，濕潤狀態下之透明感會降低，第3纖維素系纖維過多時，濕潤狀態下之處理性會降低。 Alternatively, it may be a non-woven fabric laminated with a cellulose-based mixed fiber layer and a long-fiber non-woven fabric layer. In addition, a nonwoven fabric having a long-fiber nonwoven fabric layer (intermediate fiber layer) laminated between two cellulose-based mixed fiber layers (upper fiber layer and lower fiber layer) may be used. In either case, the content of the thermoplastic resin-based fiber having a fiber length of more than 110 mm or continuous fibers and an ash content of 0.5% by mass or less in the entire nonwoven fabric is preferably 50% by mass or less. When there are too many second cellulose fibers, the transparency in a wet state is reduced, and when there are too many third cellulose fibers, the sense in a wet state is reduced.

與1層或2層之纖維素系混合纖維層積層一體化之纖維層為長纖維不織布層時，由於該長纖維不織布層係強度優異之不織布，因此與使用其他纖維素系纖維層時相比，可獲得展開性(從摺疊狀態展開之容易性)優異、使用時的延展小之含浸化妝料之皮膚被覆片用不織布。 When the fiber layer integrated with one or two layers of cellulose-based mixed fibers is a long-fiber nonwoven layer, the long-fiber non-woven layer is a non-woven fabric having excellent strength, so compared with the case where other cellulose-based fiber layers are used Non-woven fabrics for skin covering sheets of impregnated cosmetics with excellent spreadability (easiness of unfolding from a folded state) and small elongation at the time of use can be obtained.

本實施形態之積層型不織布之單位面積質量(實測單位面積質量)，整體設為25g/m2以上且48g/m2以下，較佳係28g/m2以上且46g/m2以下，更佳係32g/m2以上且44g/m2，特佳係34g/m2以上且42g/m2以下。藉此，可實現在濕潤狀態下顯示高透明感、且處理性(濕潤狀態下之展開性及耐延展性)提升之不織布。 The unit area mass (measured unit area mass) of the laminated non-woven fabric of this embodiment is 25 g / m 2 or more and 48 g / m 2 or less, preferably 28 g / m 2 or more and 46 g / m 2 or less, more preferably It is 32 g / m 2 or more and 44 g / m 2 , and particularly preferred is 34 g / m 2 or more and 42 g / m 2 or less. This makes it possible to realize a non-woven fabric that exhibits high transparency in a wet state, and improves handling properties (expandability and ductility in a wet state).

該本實施形態之不織布係可如下述方式製造。 The nonwoven fabric of this embodiment can be manufactured as follows.

首先，因應所期望的積層構造準備1片或2片纖維素系混合纖維薄片。纖維素系混合纖維薄片係適用與實施形態1中之說明相同的說明。 First, one or two cellulose-based mixed fiber sheets are prepared according to a desired laminated structure. For the cellulose-based mixed fiber sheet, the same explanation as that in the first embodiment is applied.

又，準備含有多於50質量%之纖維長度為0.5mm以上且未達20mm之第2纖維素系纖維或纖維長度超過110mm之第3纖維素系纖維之其他纖維素系纖維薄片、或者由纖維長度超過110mm或連續纖維且灰分為0.5質量%以下之熱可塑性樹脂系纖維所構成之長纖維不織布薄片。 In addition, other cellulose-based fiber sheets containing more than 50% by mass of a second cellulose-based fiber having a fiber length of 0.5 mm or more and less than 20 mm or a third cellulose-based fiber having a fiber length of more than 110 mm are prepared. A long-fiber non-woven sheet made of thermoplastic resin fibers having a length exceeding 110 mm or continuous fibers and an ash content of 0.5% by mass or less.

第2纖維素系纖維及第3纖維素系纖維係適用與上述相同的說明。該其他纖維素系纖維薄片係上述其他纖維素系纖維層之前驅物，無特別說明時，適用與其他纖維素系纖維層相同的說明。 For the second cellulose-based fiber and the third cellulose-based fiber, the same explanation as described above applies. This other cellulose-based fiber sheet is a precursor of the above-mentioned other cellulose-based fiber layer, and unless otherwise specified, the same description as the other cellulose-based fiber layer is applied.

構成長纖維不織布薄片之纖維長度超過110mm或連續纖維且灰分為0.5質量%以下之熱可塑性樹脂系纖維係適用與上述相同的說明。該長纖維不織布薄片係上述長纖維不織布層之前驅物，無特別說明時，適用與長纖維不織布層相同的說明。 The thermoplastic resin fiber having a fiber length of more than 110 mm or continuous fibers and an ash content of 0.5% by mass or less constituting the long-fiber nonwoven fabric sheet is the same as that described above. This long-fiber nonwoven fabric sheet is the precursor of the long-fiber nonwoven fabric layer, and unless otherwise specified, the same explanation as the long-fiber nonwoven fabric layer can be applied.

該其他纖維素系纖維薄片可為織網形態，亦可為纖維間藉由交纏及/或接著等而結合之不織布之形態。另一方面，長纖維不織布薄片為纖維間藉由交纏及/或接著等而結合之不織布之形態。在其他纖維素系纖維薄 片及長纖維不織布薄片中之任一者之情況，各薄片可為單層，亦可為2層以上之層的積層體。 The other cellulose fiber sheet may be in the form of a woven mesh, or may be in the form of a non-woven fabric in which fibers are joined by intertwining and / or bonding. On the other hand, the long-fiber nonwoven fabric sheet is in the form of a nonwoven fabric in which fibers are bonded by entanglement and / or bonding. Thin in other cellulose fibers In the case of any one of the sheet and the long-fiber nonwoven fabric sheet, each sheet may be a single layer or a laminate of two or more layers.

其他纖維素系纖維薄片為含有多於50質量%之第2纖維素系纖維者時，該薄片較佳係濕式織網或濕式不織布。濕式織網或濕式不織布之與織網或不織布之表面方向平行之纖維的比例多，與例如氣流式織網或氣流式不織布相比有高平滑性，因此有助於最終所得之不織布之透明感的提升，又，不織布表面之均勻性(質地)亦提升。該薄片為不織布時，可使用市售之不織布。 When the other cellulose-based fiber sheet contains more than 50% by mass of the second cellulose-based fiber, the sheet is preferably a wet woven net or a wet non-woven fabric. Wet woven or wet non-woven fabrics have a large proportion of fibers that are parallel to the surface direction of the woven or non-woven fabric, and have high smoothness compared to, for example, air woven or air woven fabrics, and thus contribute to the final nonwoven fabric. The transparency is improved, and the uniformity (texture) of the surface of the nonwoven fabric is also improved. When the sheet is a nonwoven fabric, a commercially available nonwoven fabric can be used.

其他纖維素系纖維薄片含有第2纖維素系纖維時，第2纖維素系纖維可為紙漿纖維。其他纖維素系纖維薄片為由紙漿纖維所構成時，形成積層體時，不僅如上述之織網或不織布之形態，亦可提供棉狀紙漿(絨毛(fluff)紙漿)。尤其，紙漿纖維具有扁平狀纖維剖面，含有其之濕式織網或濕式不織布在水流交纏時為積層有扁平面之構成，紙漿纖維不易露出薄片表面，不易影響纖維素系混合纖維層之質感，故為適用。又，濕式不織布在濕潤狀態下較易破裂，有助於最終所得之不織布之耐延展性之提升。含有紙漿纖維(或實質上由紙漿纖維所構成)之濕式不織布係包含紙。紙包含僅由紙漿纖維所構成，且纖維彼此藉由黏合劑(binder)及/或氫鍵而結合之衛生紙。又，紙亦包含加工為波狀或皺狀之所謂的皺紋紙。 When the other cellulose-based fiber sheet contains the second cellulose-based fiber, the second cellulose-based fiber may be a pulp fiber. When other cellulose-based fiber sheets are composed of pulp fibers, when forming a laminated body, cotton-like pulp (fluff pulp) can be provided not only in the form of the woven mesh or non-woven fabric described above. In particular, pulp fibers have a flat fiber cross section. The wet woven web or wet nonwoven fabric containing them has a flat surface layer when entangled in water flow. Pulp fibers do not easily expose the surface of the sheet and do not affect the cellulose-based mixed fiber layer. It is suitable for texture. In addition, the wet nonwoven fabric is more likely to break in a wet state, which helps to improve the ductility of the finally obtained nonwoven fabric. Wet nonwoven fabrics containing pulp fibers (or consisting essentially of pulp fibers) include paper. Paper includes toilet paper composed of only pulp fibers, and the fibers are bonded to each other by a binder and / or hydrogen bonding. The paper also includes so-called corrugated paper processed into a corrugated or wrinkled shape.

其他纖維素系纖維薄片含有第3纖維素系纖維時，第3纖維素系纖維可為精製纖維素纖維、銅氨嫘 縈纖維之長纖維或連續纖維。其他纖維素系纖維薄片係由銅氨嫘縈纖維之長纖維或連續纖維所構成時，可使用市售之纖維素系長纖維不織布，例如商品名「Bemliese」(旭化成纖維(股)(Asahi Kasei Fibers Corporation)製)等。 When the other cellulose-based fiber sheet contains the third cellulose-based fiber, the third cellulose-based fiber may be refined cellulose fiber or copper ammonia Long fiber or continuous fiber. When other cellulose-based fiber sheets are composed of long fibers or continuous fibers of copper ammonia fibers, commercially available cellulose-based long-fiber nonwoven fabrics can be used, such as the trade name "Bemliese" Fibers Corporation)).

然後，將1片或2片之纖維素系混合纖維薄片、與其他纖維素系纖維薄片或長纖維不織布薄片積層。 Then, one or two cellulose-based mixed fiber sheets are laminated with other cellulose-based fiber sheets or long-fiber nonwoven fabric sheets.

更詳細而言，可將1層纖維素系混合纖維薄片、與其他纖維素系纖維薄片積層而作為積層體。又，可在2層纖維素系混合纖維薄片(上側纖維薄片及下側纖維薄片)之間積層其他纖維素系纖維薄片(中間纖維薄片)而作為積層體。 More specifically, one layer of the cellulose-based mixed fiber sheet may be laminated with another cellulose-based fiber sheet to form a laminate. Further, another cellulose-based fiber sheet (intermediate fiber sheet) may be laminated between two layers of cellulose-based mixed fiber sheets (upper fiber sheet and lower fiber sheet) as a laminate.

或者，可將1層纖維素系混合纖維薄片、與長纖維不織布薄片積層而作為積層體。又，可在2層纖維素系混合纖維薄片(上側纖維薄片及下側纖維薄片)之間積層長纖維不織布薄片(中間纖維薄片)而作為積層體。 Alternatively, one layer of the cellulose-based mixed fiber sheet and the long-fiber nonwoven fabric sheet can be laminated to form a laminate. Moreover, a long-fiber nonwoven fabric sheet (intermediate fiber sheet) can be laminated between two cellulose-based mixed fiber sheets (upper fiber sheet and lower fiber sheet) as a laminate.

接著，將如此方式所得之積層有1片或2片纖維素系混合纖維薄片與其他纖維素系纖維薄片或長纖維不織布薄片之積層體(以下，簡稱為「積層體」)施以水流交纏處理(水針纏結)。 Next, the laminated body obtained by laminating one or two cellulose-based mixed fiber sheets and other cellulose-based fiber sheets or long-fiber nonwoven sheets (hereinafter, simply referred to as a "laminate") is entangled with water. Treatment (water needle tangles).

然後，將積層體施以壓製處理及熱處理，使由此所得之不織布之表面(上表面及下表面)平滑化，以及使熱接著性纖維之至少一部分熔融，將構成纖維之交點之至少一部分藉由熱接著性纖維而熱接著。 Then, the laminated body is subjected to a pressing treatment and a heat treatment to smooth the surface (upper surface and lower surface) of the non-woven fabric thus obtained, and to melt at least a part of the heat-adhesive fibers, thereby borrowing at least a part of the intersection points of the fibers. Heat-bonded from heat-adhesive fibers.

水流交纏處理、壓製處理及熱處理係適用 與實施形態1中針對單層體之說明相同的說明。 Applicable to water entanglement treatment, pressing treatment and heat treatment The description is the same as that of the single layer body in the first embodiment.

尤其，其他纖維素系纖維薄片含有多於50質量%之第2纖維素系纖維時，若施用水流交纏處理，則可提高其他纖維素系纖維薄片之透明感及耐延展性，甚至於可更提高最終所得之不織布整體之透明感及耐延展性。關於其理由，本發明雖不受任何理論拘束，但認為係如下述原因。若施用水流交纏處理，則柱狀水流沖打之處，纖維量變得較少，該處於不織布顯現條紋狀。該纖維量較少之條紋狀處在本說明書中稱為「條紋狀低纖維密度部」，通常於縱方向(MD)顯現，但不限於此。該條紋狀低纖維密度部中，由於纖維量較少，故可在濕潤狀態下得到高透明感。又，條紋狀低纖維密度部中，由於纖維量較少，故容易於與條紋狀低纖維密度部之方向(通常為縱方向(MD))正交之方向(通常為橫方向(CD))伸長。然後，認為其他纖維素系纖維薄片含有第2纖維素系纖維時，第2纖維素系纖維由於纖維長度短且為親水性，故容易因柱狀水流而剝落且容易被水沖走，結果，條紋狀低纖維密度部中纖維量變得格外少，可得到更高之透明感及耐伸長性。最終所得之薄片中，以第1纖維素系纖維為主成分之纖維素系混合纖維層(3層構造時為上側纖維層及下側纖維層)，如同上述，濕潤狀態下尤其顯示高透明感。相對於此，以第2纖維素系纖維為主成分之其他纖維素系纖維層(3層構造時為中間纖維層)，比起透明感，可發揮負責濕潤狀態下之液體保持性(保液性)之功能。然後，認為在如上述方式施用水流交纏處理 時，條紋狀低纖維密度部中尤其可有效降低其他纖維素系纖維層之纖維量，可提高其他纖維素系纖維層之透明感及伸長性，甚至於可更提高最終所得之薄片整體之透明感及伸長性。 In particular, when other cellulose-based fiber sheets contain more than 50% by mass of the second cellulose-based fiber, if the water-entanglement treatment is applied, the transparency and ductility of other cellulose-based fiber sheets can be improved, and even The overall sense of transparency and ductility of the resulting nonwoven fabric is further improved. The reason for this is not limited by any theory, but it is considered to be as follows. When the water flow entanglement treatment is applied, the fiber volume becomes smaller where the columnar water flow hits, and the non-woven fabric appears streaked. The streaks having a small amount of fibers are referred to as "striped low-fiber density portions" in this specification, and they usually appear in the longitudinal direction (MD), but are not limited thereto. In this striped low-fiber density portion, since the amount of fibers is small, a high transparency feeling can be obtained in a wet state. In addition, since the stripe-shaped low-fiber-density portion has a small amount of fiber, it is easy to be perpendicular to the direction (usually the longitudinal direction (MD)) of the stripe-shaped low-fiber density portion (usually the lateral direction (CD)). elongation. Then, when the other cellulose-based fiber sheet contains the second cellulose-based fiber, the second cellulose-based fiber is considered to be easily peeled off by the columnar water flow and easily washed away by water because the second fiber-based fiber is short and hydrophilic. The amount of fibers in the stripe-shaped low-fiber-density portion becomes extremely small, and higher transparency and elongation resistance can be obtained. In the finally obtained sheet, the cellulose-based mixed fiber layer containing the first cellulose-based fiber as the main component (the upper fiber layer and the lower fiber layer in the case of a three-layer structure), as described above, particularly exhibits a high transparency in a wet state. . On the other hand, the other cellulose fiber layer (the intermediate fiber layer in the case of a three-layer structure) containing the second cellulose fiber as the main component can provide liquid retention (liquid retention) in a wet state rather than transparency. Sex). Then, it is considered that the water-entanglement treatment is applied in the manner as described above. In the case of the stripe-shaped low-fiber density portion, the amount of fibers in other cellulose-based fiber layers can be effectively reduced, the transparency and extensibility of other cellulose-based fiber layers can be improved, and even the overall transparency of the finally obtained sheet can be further improved. Feel and stretch.

以上之結果，纖維素系混合纖維薄片、與其他纖維素系纖維薄片或長纖維不織布薄片，分別成為纖維素系混合纖維層、與其他纖維素系纖維層或長纖維不織布層，藉此可製造本實施形態之不織布。 As a result, the cellulose-based mixed fiber sheet, and other cellulose-based fiber sheets or long-fiber nonwoven fabric sheets can be manufactured into cellulose-based mixed fiber layers, and other cellulose-based fiber layers or long-fiber nonwoven fabric layers, respectively. Non-woven fabric of this embodiment.

本實施形態之不織布係適宜使用作為含浸化妝料之皮膚被覆片之基材，含浸液狀化妝料，貼附於人體皮膚等而使用。液狀化妝料之含浸量，相對於基材100質量份，可將化妝料設為150質量份以上且2500質量份以下之範圍，較佳係設為400質量份以上且2000質量份以下之範圍。含浸化妝料之皮膚被覆片係適用與實施形態1中之說明相同的說明。 The non-woven fabric of the present embodiment is suitable for use as a base material of a skin covering sheet impregnated with a cosmetic, an impregnated liquid cosmetic, and attached to human skin. The impregnation amount of the liquid cosmetic material can be set to a range of 150 mass parts or more and 2500 mass parts or less with respect to 100 mass parts of the base material, and it is preferably set to a range of 400 mass parts or more and 2000 mass parts or less. . The skin covering sheet impregnated with the cosmetic is the same as that described in the first embodiment.

以上，經由本發明之2個實施形態，說明本發明之不織布及其製造方法以及使用該不織布之含浸化妝料之皮膚被覆片。然而，本發明不限於上述實施形態，可進行各種更改。 The non-woven fabric of the present invention, its manufacturing method, and a skin covering sheet using the impregnated cosmetic material of the non-woven fabric have been described through the two embodiments of the present invention. However, the present invention is not limited to the above embodiments, and various modifications can be made.

上述實施形態1及2中，係設為在壓製處理之前實施水流交纏處理者。然而，請注意該順序並非本發明之不織布之製造方法必須事項。例如，以適宜性而言雖較差，但可在壓製處理後實施水流交纏處理，亦可實施其他交纏處理及/或纖維間結合處理，例如化學黏合(chemical bond)、熱黏合(thermal bond)、針軋等來取代水流交纏處理。 In the first and second embodiments described above, the water entanglement treatment was performed before the pressing treatment. However, please note that this order is not necessary for the method of manufacturing the nonwoven fabric of the present invention. For example, although poor in terms of suitability, water entanglement treatment may be performed after the pressing treatment, and other entanglement treatments and / or interfiber bonding treatments may also be performed, such as chemical bonding. bond), thermal bond, pin rolling, etc. instead of water flow entanglement treatment.

又，上述實施形態2中，說明具有由1層或2層之纖維素系混合纖維層、與1層其他纖維素系纖維層或長纖維不織布層所構成之積層構造之不織布。然而，只要沒有明顯損及薄片透明感，即可在該積層構造之單側或兩側之表面、鄰接之2個層之間等存在1個或1個以上之其他層。又或者，可將1層纖維素系混合纖維層積層在2層其他纖維素系纖維層或長纖維不織布層之間來構成不織布。 In the second embodiment described above, a non-woven fabric having a laminate structure composed of one or two cellulose-based mixed fiber layers and one other cellulose-based fiber layer or a long-fiber nonwoven fabric layer will be described. However, as long as the transparency of the sheet is not significantly impaired, one or more other layers may exist on the surface of one or both sides of the laminated structure, between two adjacent layers, and the like. Alternatively, a nonwoven fabric may be formed by laminating one cellulose-based mixed fiber layer between two other cellulose-based fiber layers or long-fiber nonwoven fabric layers.

又，藉由本發明所得之含浸化妝料之皮膚被覆片之用途，不限於面膜，可使用於各種用途。例如，可將含浸含有保濕成分之液狀化妝料之薄片貼附於頸部、手肘或腳跟而使用。或者，將含浸含有瘦身成分之液狀化妝料之薄片貼附於腹部或大腿部而使用。又或者，可將含浸止痛消炎劑等液狀藥劑之薄片貼附於手肘、肩、腰或腳踝而使用。 In addition, the application of the skin covering sheet impregnated with the cosmetic obtained by the present invention is not limited to a mask, and can be used for various purposes. For example, a sheet impregnated with a liquid cosmetic material containing a moisturizing ingredient can be attached to the neck, elbows, or heels and used. Alternatively, a sheet impregnated with a liquid cosmetic material containing a slimming component is attached to the abdomen or thigh and used. Alternatively, a thin sheet containing a liquid medicine such as an analgesic anti-inflammatory agent can be applied to the elbow, shoulder, waist, or ankle and used.

(實施例) (Example)

以下，藉由實施例說明本發明。 Hereinafter, the present invention will be described by way of examples.

本實施例及比較例中，作為纖維素系混合纖維薄片所用之第1纖維素系纖維及熱接著性纖維、以及含有第2纖維素系纖維之其他纖維素系纖維薄片，而準備下述者。 In this example and the comparative example, the following cellulose-based mixed fiber sheets are prepared as the first cellulose-based fiber and the heat-adhesive fiber, and other cellulose-based fiber sheets containing the second cellulose-based fiber, and the following are prepared .

[第1纖維素系纖維] [First cellulose fiber]

‧嫘縈：纖維細度1.7dtex、纖維長度40mm之黏液嫘縈(於 製造時之黏液(viscose)溶液中不添加氧化鈦而製造。灰分0.09質量%，商品名「BH」，DAIWABO RAYON(股)製) ‧ 嫘 萦: Mucus with fiber fineness of 1.7dtex and fiber length of 40mm (in It is produced without adding titanium oxide to the viscose solution during production. Ash content 0.09% by mass, trade name "BH", DAIWABO RAYON (stock) system)

[熱接著性纖維] [Thermoadhesive fiber]

‧鞘芯A：由纖維細度1.7dtex、纖維長度51mm之聚丙烯(芯部)/高密度聚乙烯(鞘部)所構成之鞘芯型複合纖維(灰分0.05質量%，Huvis Corporation製) ‧Sheath Core A: Sheath-core type composite fiber (0.05% by mass of ash, manufactured by Huvis Corporation) composed of polypropylene (core) / high-density polyethylene (sheath) with a fiber fineness of 1.7 dtex and a fiber length of 51 mm

‧鞘芯B：由纖維細度1.7dtex、纖維長度51mm之聚丙烯(芯部)/高密度聚乙烯(鞘部)所構成之鞘芯型複合纖維(灰分0.06質量%，商品名「NBF(H)」，Daiwabo Polytec(股)製) ‧Sheath Core B: Sheath-core composite fiber (0.06 mass% ash, trade name "NBF ( H) ", Daiwabo Polytec (shares)

‧鞘芯C：由纖維細度2.2dtex、纖維長度51mm之聚丙烯(芯部)/高密度聚乙烯(鞘部)所構成之鞘芯型複合纖維(灰分0.06質量%，商品名「NBF(H)」，Daiwabo Polytec(股)製) ‧Sheath Core C: Sheath-core composite fiber (0.06 mass% ash content, trade name "NBF ( H) ", Daiwabo Polytec (shares)

‧鞘芯D：由纖維細度3.3dtex、纖維長度51mm之聚丙烯(芯部)/高密度聚乙烯(鞘部)所構成之鞘芯型複合纖維(灰分0.06質量%，商品名「NBF(H)」，Daiwabo Polytec(股)製) ‧Sheath Core D: Sheath-core composite fiber (0.06 mass% ash, trade name "NBF ( H) ", Daiwabo Polytec (shares)

‧分割A：由纖維細度2.2dtex、纖維長度51mm之聚對苯二甲酸乙二酯/高密度聚乙烯之組合所構成之分割數8之分割型複合纖維(由分割所形成之纖維中之具有最小纖維細度者之纖維細度係0.275dtex(商品名「DFS(SH)」，Daiwabo Polytec(股)製) ‧Segment A: A split-type composite fiber with a split number of 8 consisting of a polyethylene terephthalate / high-density polyethylene combination with a fiber fineness of 2.2 dtex and a fiber length of 51 mm (of the fibers formed by the split The fiber fineness of the person with the smallest fiber fineness is 0.275 dtex (trade name "DFS (SH)", manufactured by Daiwabo Polytec (stock))

[含有第2纖維素系纖維之其他纖維素系纖維薄片] [Other cellulose-based fiber sheet containing second cellulose-based fiber]

‧由100質量%之紙漿纖維所構成之濕式不織布(單位面積質量17g/m2或26g/m2，平均纖維長度5mm，HAVIX(股)製) ‧Wet non-woven fabric made of 100% by mass of pulp fiber (mass per unit area: 17g / m 2 or 26g / m 2 , average fiber length: 5mm, made by HAVIX)

[纖維之灰分] [Ash of fiber]

纖維素系纖維及熱可塑性樹脂系纖維之灰分可藉由依據JIS L1015 8.20(2010)之方法、或者後述方法(步驟)來測定。更詳細而言，該灰分在無法藉由依據JIS L1015 8.20(2010)之方法來測定(例如，無法準備指定裝置等)時、或者更簡便地測定時，可藉由以下步驟來測定。 The ash content of the cellulose-based fiber and the thermoplastic resin-based fiber can be measured by a method according to JIS L1015 8.20 (2010) or a method (step) described later. More specifically, when the ash cannot be measured by a method according to JIS L1015 8.20 (2010) (for example, a designated device cannot be prepared), or when it is easier to measure, the ash can be measured by the following procedure.

首先，準備坩堝，在設定為600℃之電爐加熱1小時以上，測定冷卻後之質量(坩堝之恆重：M1(g))。接著，準備1至10g之測定灰分之纖維(試料)，使用電子天平測定其質量(試料之質量：Mf(g))。接著，使用氣體燃燒器，將已測定恆重之坩堝加熱2分鐘，將坩堝充分加熱。坩堝充分加熱後，投入少許試料(已測定質量之纖維)，將所投入之纖維加熱到成為黑灰狀為止。所投入之纖維成為黑灰狀時，重複將少量逐次加入其餘的試料之動作，直到試料(已測定質量之纖維)全部投入坩堝為止。 First, a crucible was prepared and heated in an electric furnace set at 600 ° C. for more than 1 hour, and the mass after cooling was measured (constant weight of the crucible: M 1 (g)). Next, 1 to 10 g of an ash-measured fiber (sample) was prepared, and its mass was measured using an electronic balance (mass of the sample: Mf (g)). Next, using a gas burner, the crucible whose constant weight has been measured is heated for 2 minutes, and the crucible is sufficiently heated. After the crucible was sufficiently heated, a small amount of a sample (a fiber having a measured mass) was charged, and the input fiber was heated until it became black and gray. When the input fiber becomes black and gray, repeat the operation of adding a small amount of the remaining sample one by one until the sample (fibers of which the mass has been measured) is all put into the crucible.

將試料全部投入坩堝，加熱直到從坩堝冒出煙為止。不再從坩堝產生煙時，以留有少許縫隙之方式蓋住坩堝後，放入高溫爐(muffle)內部，再使用氣體燃燒器灼熱1小時以上。確認試料完全成為白灰狀後，從高溫爐取出坩堝， 放入乾燥器後蓋住坩堝並冷卻。冷卻後，打開蓋子，測定坩堝與灰之合計質量(M2(g))。 Put all the samples into the crucible and heat until the smoke comes out of the crucible. When no more smoke is generated from the crucible, cover the crucible with a little gap, put it inside a high-temperature furnace (muffle), and use a gas burner to heat it for more than 1 hour. After confirming that the sample is completely white and gray, take out the crucible from the high-temperature furnace, put it in the dryer, cover the crucible, and cool. After cooling, the lid was opened, and the total mass (M 2 (g)) of the crucible and ash was measured.

因此，使用上述試料所得之灰之質量係M2-M1(g)，以下述式來計算灰分(質量%)。 Therefore, using the mass of ash obtained from the above sample is M 2 -M 1 (g), and the ash content (mass%) is calculated by the following formula.

[單層型不織布] [Single-layer non-woven fabric] (實施例1) (Example 1)

‧纖維素系混合纖維薄片(單層體)之製作 ‧Production of cellulose-based mixed fiber sheet (monolayer)

將第1纖維素系纖維之上述「嫘縈」80質量%、與熱接著性纖維之上述「鞘芯A」20質量%混合，使用平行梳棉機，以單位面積質量(織網目標單位面積質量)約35g/m2製作平行織網(纖維素系混合纖維薄片)。 80 mass% of the above "嫘 萦" of the first cellulose-based fiber and 20 mass% of the "sheath core A" of the heat-adhesive fiber were mixed, and a parallel card was used to measure the mass per unit area (target unit area of the web) Mass) was about 35 g / m 2 to produce a parallel web (cellulose-based mixed fiber sheet).

‧水流交纏處理 ‧Water entanglement treatment

該織網(纖維素系混合纖維薄片之單層體)載置於網子上以速度4m/分鐘進行同時施以水流交纏處理。水流交纏處理係使用具備孔徑0.10mm之噴口(orifice)以0.6mm間隔設置之噴嘴之噴水裝置，對單層體上面噴射水壓1MPa及2MPa之柱狀水流各1次，然後，使用同樣的噴水裝置，對單層體下面噴射水壓1MPa及2MPa之柱狀水流各1次。單層體表面與噴口之間的距離係設為15mm。網子係使用經紗之線徑為0.132mm、緯紗之線徑為0.132mm、網目數為90網目之平織聚對苯二甲酸乙二酯製網子。 This woven mesh (a single layer body of a cellulose-based mixed fiber sheet) was placed on a mesh and subjected to water entanglement treatment at a speed of 4 m / min. Water entanglement treatment uses a water spraying device with nozzles with orifices of 0.10mm orifices arranged at 0.6mm intervals, and sprays a single column of water at a pressure of 1MPa and 2MPa on the single-layer body once, and then uses the same The water spray device sprays a columnar water flow with a water pressure of 1 MPa and 2 MPa below the single-layer body once. The distance between the surface of the monolayer and the nozzle was set to 15 mm. The net is made of plain woven polyethylene terephthalate with a warp yarn diameter of 0.132mm, a weft yarn diameter of 0.132mm, and a mesh size of 90 mesh.

‧壓製處理 ‧Press treatment

將水流交纏後之單層體通過一對軋輥(mangle roll)間，以線壓350N/cm施以壓製處理。 The single-layer body entangled with water flow was passed between a pair of mangle rolls and subjected to a pressing treatment at a linear pressure of 350 N / cm.

‧乾燥處理及熱處理 ‧Drying and heat treatment

然後，使單層體暴露於140℃之熱風約1分鐘，同時進行乾燥處理與熱處理。藉由該熱處理，僅將構成熱接著性纖維之高密度聚乙烯熔融，藉由高密度聚乙烯使構成纖維彼此熱接著，獲得不織布。 Then, the monolayer was exposed to hot air at 140 ° C. for about 1 minute, and simultaneously dried and heat-treated. By this heat treatment, only the high-density polyethylene constituting the heat-adhesive fiber is melted, and the constituent fibers are thermally adhered to each other by the high-density polyethylene to obtain a nonwoven fabric.

(實施例2至10、比較例1) (Examples 2 to 10, Comparative Example 1)

以使第1纖維素系纖維之比例、熱接著性纖維之種類及比例(比較例1中未使用)、以及單位面積質量(織網目標單位面積質量)如同表1所示之方式製作織網(纖維素系混合纖維薄片之單層體)，然後，以與實施例1所採用之條件相同條件實施水流交纏處理、壓製處理及熱處理(兼任乾燥處理)而獲得不織布。 A woven fabric was produced in such a manner that the proportion of the first cellulose-based fiber, the type and proportion of the heat-adhesive fiber (unused in Comparative Example 1), and the mass per unit area (the target mass per unit area of the woven fabric) were as shown in Table 1. (Single-layer body of cellulose-based mixed fiber sheet), and then subjected to water entanglement treatment, pressing treatment, and heat treatment (concurrently drying treatment) under the same conditions as those used in Example 1 to obtain a nonwoven fabric.

[積層型不織布] [Laminated type non-woven fabric] (實施例11) (Example 11)

‧纖維素系混合纖維薄片之製作 ‧Production of cellulose-based mixed fiber flakes

將第1纖維素系纖維之上述「嫘縈」80質量%、與熱接著性纖維之上述「鞘芯A」20質量%混合，使用平行梳棉機，以單位面積質量(織網目標單位面積質量)約11.5g/m2製作2片平行織網(纖維素系混合纖維薄片)。 80 mass% of the above "嫘 萦" of the first cellulose-based fiber and 20 mass% of the "sheath core A" of the heat-adhesive fiber were mixed, and a parallel card was used to measure the mass per unit area (target unit area of the web) Mass) was about 11.5 g / m 2 to produce two parallel woven webs (cellulose-based mixed fiber sheet).

‧積層體之製作 ‧Lamination

該等2片織網(纖維素系混合纖維薄片)之間夾著由紙漿纖維100質量%所構成之濕式不織布(單位面積質量17g/m2、平均纖維長度5mm)(其他纖維素系纖維薄片)而積層，製作三層構造之積層體。 Between these two woven meshes (cellulose-based mixed fiber sheets), a wet type nonwoven fabric (mass per unit area: 17 g / m 2 , average fiber length: 5 mm) made of 100% by mass of pulp fibers (other cellulose-based fibers) Sheet), and a three-layered laminated body was produced.

‧水流交纏處理 ‧Water entanglement treatment

將該積層體(纖維素系混合纖維薄片(上)/其他纖維素系纖維薄片(中)/纖維素系混合纖維薄片(下)所成之積層體)載置於網子上，一邊以速度4m/分鐘移動一邊施以水流交纏處理。水流交纏處理係使用具備孔徑0.10mm之噴口以0.6mm間隔設置之噴嘴之噴水裝置，對積層體上面噴射水壓1MPa及2MPa之柱狀水流各1次，然後，使用同樣的噴水裝置，對積層體下面噴射水壓1MPa及2MPa之柱狀水流各1次。積層體表面與噴口之間的距離係設為15mm。網子係使用經紗之線徑為0.132mm、緯紗之線徑為0.132mm、網目數為90網目之平織聚對苯二甲酸乙二酯製網子。 The laminated body (a laminated body composed of cellulose-based mixed fiber sheet (top) / other cellulose-based fiber sheet (middle) / cellulose-based mixed fiber sheet (bottom)) was placed on a net, and the speed Water was entangled while moving at 4m / min. The water entanglement treatment uses a water spraying device with nozzles provided with a nozzle opening of 0.10 mm at 0.6 mm intervals, and sprays a columnar water flow of 1 MPa and 2 MPa on the laminated body once, and then uses the same water spraying device to A columnar water flow with a water pressure of 1 MPa and 2 MPa was sprayed once under the laminated body. The distance between the surface of the laminated body and the nozzle was set to 15 mm. The net is made of plain woven polyethylene terephthalate with a warp yarn diameter of 0.132mm, a weft yarn diameter of 0.132mm, and a mesh size of 90 mesh.

‧壓製處理 ‧Press treatment

將水流交纏後之積層體通過一對軋輥間，以線壓350N/cm施以壓製處理。 The laminated body after being entangled with water was passed between a pair of rolls, and subjected to a pressing treatment at a linear pressure of 350 N / cm.

‧乾燥處理及熱處理 ‧Drying and heat treatment

然後，使積層體暴露於140℃之熱風約1分鐘，同時進行乾燥處理與熱處理。藉由該熱處理，僅將構成熱接著性纖維之高密度聚乙烯熔融，藉由高密度聚乙烯使構成纖維彼此熱接著，獲得不織布。 Then, the laminated body was exposed to hot air at 140 ° C. for about 1 minute, and simultaneously dried and heat-treated. By this heat treatment, only the high-density polyethylene constituting the heat-adhesive fiber is melted, and the constituent fibers are thermally adhered to each other by the high-density polyethylene to obtain a nonwoven fabric.

(實施例12、比較例2至6) (Example 12, Comparative Examples 2 to 6)

以使第1纖維素系纖維之比例、熱接著性纖維之種類及比例(比較例2中未使用)、以及單位面積質量(織網目標單位面積質量)如同表2所示之方式製作2片織網(纖維素系混合纖維薄片)，將紙漿纖維之濕式不織布(其他纖維素系纖維薄片)設為如同表2所示之單位面積質量，夾在該等2片織網之間而積層，製作三層構造之積層體(由纖維素系混合纖維薄片(上)/其他纖維素系纖維薄片(中)/纖維素系混合纖維薄片(下)所構成之積層體)，然後，以與實施例11所採用之條件相同條件實施水流交纏處理、壓製處理及熱處理(兼任乾燥處理)而獲得不織布。 Two pieces were produced in such a manner that the ratio of the first cellulose-based fiber, the type and ratio of the heat-adhesive fiber (not used in Comparative Example 2), and the mass per unit area (the target mass per unit area of the web) are as shown in Table 2. The woven mesh (cellulose-based mixed fiber sheet), the wet type nonwoven fabric (other cellulose-based fiber sheet) of pulp fibers is set to have a mass per unit area as shown in Table 2, sandwiched between the two woven meshes and laminated To produce a three-layer structured laminate (a laminate composed of cellulose-based mixed fiber sheets (top) / other cellulose-based fiber sheets (middle) / cellulose-based mixed fiber sheets (bottom)), and then In the same conditions as those used in Example 11, the water-entanglement treatment, the pressing treatment, and the heat treatment (concurrently performing the drying treatment) were performed to obtain a nonwoven fabric.

針對實施例1至12及比較例1至6所得之不織布，依照以下方法評估實測單位面積質量、厚度、乾燥時物性、濕潤時物性及使用感。評估結果係一併表示於表1及表2。又，於第1圖表示實施例4所得之不織布之纖維素系混合纖維層之剖面之掃描型電子顯微鏡照片(150倍)。 For the non-woven fabrics obtained in Examples 1 to 12 and Comparative Examples 1 to 6, the measured mass per unit area, thickness, physical properties during drying, physical properties during wetness, and use feeling were evaluated according to the following methods. The evaluation results are shown in Tables 1 and 2. A scanning electron microscope photograph (150 times) of a cross section of the non-woven cellulose-based mixed fiber layer obtained in Example 4 is shown in FIG. 1.

[實測單位面積質量、厚度、比容積] [Measured mass per unit area, thickness, specific volume]

不織布之實測單位面積質量(單位面積質量之實測值)係將預定尺寸之試料片，在未被化妝料、水等弄濕之狀態下，進行質量測定而計算出。 The measured unit area mass (measured value of unit area mass) of the non-woven fabric is calculated by measuring the mass of a sample piece of a predetermined size without being wet with cosmetics or water.

不織布之厚度係使用厚度測定機(商品名「THICKNESS GAUGE」，型號CR-60A，大榮科學精器製作所(股)製)，在未被化妝料、水等弄濕且對每1cm2試料施加3g之荷重之狀態下測定。 The thickness of the non-woven fabric was measured using a thickness measuring machine (brand name "THICKNESS GAUGE", model number CR-60A, manufactured by Daiei Scientific Precision Co., Ltd.), and was not wetted with cosmetics or water and applied to each 1 cm 2 sample. Measured under a load of 3 g.

不織布之比容積係由單位面積質量(實測值)及厚度計算出。 The specific volume of the non-woven fabric is calculated from the mass per unit area (measured value) and thickness.

[乾燥時物性及濕潤時物性：抗拉強度、破裂伸度、10%伸長時應力] [Physical properties when dry and wet properties: tensile strength, elongation at break, stress at 10% elongation]

依據JIS L 1096 6.12.1 A法(剝除法(stripping))，使用恆速張力型拉力試驗機，以試料片寬度5cm、夾具間隔10cm、拉伸速度30±2cm/分鐘之條件施以拉伸試驗，測定切斷時之荷重值(抗拉強度)、破裂伸度、以及10%伸長時應力。拉伸試驗係針對不被化妝料、水等弄濕之狀態(乾燥時)之試料片、與含浸相對於試料100質量份為200質量份之蒸留水之狀態(濕潤時)之試料片兩者，於縱方向(MD)及橫方向(CD)之2個拉伸方向實施。評估結果皆以針對3個試料所測定之值之平均來表示。 According to JIS L 1096 6.12.1 method A (stripping method), a constant speed tension type tensile tester was used, and the test piece was stretched under the conditions of a specimen width of 5 cm, a clamp interval of 10 cm, and a drawing speed of 30 ± 2 cm / minute The test measured the load value (tensile strength) at break, the elongation at break, and the stress at 10% elongation. The tensile test is for both a test piece in a state (when dry) that is not wet with cosmetics and water, and a test piece in a state (when wet) that is impregnated with 200 parts by mass of 100 parts by mass of the sample with distilled water. It is implemented in two stretching directions of the longitudinal direction (MD) and the transverse direction (CD). The evaluation results are expressed as an average of the values measured for the three samples.

[使用評估] [Usage Evaluation]

為了評估將本發明之不織布作成濕潤薄片而使用時之使用感，以下述方法進行官能評估。 In order to evaluate the use feeling when the nonwoven fabric of the present invention is used as a wet sheet, the functional evaluation was performed by the following method.

將不織布裁切成縱20cm×橫20cm之尺寸。接著，以相對於前述不織布之試料100質量份，成為600質量份之方式秤量市售之化妝料(樂敦製藥(股)製，極潤(註冊商標)玻 尿酸液)。將已裁切之不織布以先摺成3摺，然後於長邊方向摺成2摺之狀態放入聚乙烯製袋中，於其中放入已秤量之化妝料，使不織布試料維持已摺之狀態並且在無加重之狀態於平面放置24小時，使不織布充分含浸化妝料。將試料從聚乙烯袋輕輕取出，從摺疊狀態展開，評估此時之展開性(展開容易性)與耐延展性(延展難易性)。成人女性以指尖觸摸展開為薄片狀之試料表面，評估不織布柔軟性，然後，貼附於臉部，評估透明感與密著感。透明感、密著感、柔軟性、展開性(展開容易性)、展開後之耐延展性(延展難易性)之評估基準係如同下述。 The non-woven fabric was cut into a size of 20 cm in length × 20 cm in width. Next, a commercially available cosmetic material (made by Lotun Pharmaceutical Co., Ltd., Jirun (registered trademark) glass was weighed so that it was 600 parts by mass relative to 100 parts by mass of the non-woven sample. Uric acid). The cut non-woven fabric is first folded into three folds, and then folded into two folds in the long side direction. It is put into a polyethylene bag, and the weighed cosmetics are put in it to keep the non-woven sample in the folded state. And leave it on the flat surface for 24 hours without any weight, so that the non-woven fabric is fully impregnated with the cosmetic. The sample was gently taken out from the polyethylene bag, and unfolded from the folded state, and the unfoldability (easiness to unfold) and resistance to extensibility (easiness to stretch) at this time were evaluated. Adult females touch the surface of a thin sample with fingertips, evaluate the softness of the non-woven fabric, and then attach it to the face to evaluate the sense of transparency and adhesion. The evaluation criteria of transparency, adhesion, softness, spreadability (easiness to spread), and spread resistance (diffusibility to spread) after expansion are as follows.

(1)透明感 (1) Transparency

+++：裝配者的肌膚顏色係穿透而可看見，幾乎無法確認到不織布的色。 +++: The skin color of the assembler is transparent and visible, and the color of the non-woven fabric can hardly be confirmed.

++：裝配者的肌膚顏色係穿透而可看見，但亦可確認到不織布之顏色。 ++: The skin color of the assembler can be seen through, but the color of the non-woven fabric can also be confirmed.

+：裝配者的肌膚顏色係穿透而可看見，但比起不織布之顏色，難以確認肌膚之顏色。 +: The skin color of the assembler can be seen through, but the color of the skin is harder to confirm than the color of the non-woven fabric.

-：裝配者的肌膚之顏色完全無法穿透而看見。 -: The color of the skin of the assembler cannot be seen at all.

(2)密著感 (2) Closeness

+++：對肌膚之密著性極高，裝配時完全未發生剝離。 +++: Very high adhesion to the skin, no peeling occurred during assembly.

++：對肌膚之密著性良好，裝配時不易剝離。 ++: Good adhesion to the skin, not easy to peel off during assembly.

+：對肌膚之密著性略差，但可使用作為含浸化妝料之皮膚被覆片。 +: The adhesiveness to the skin is slightly inferior, but it can be used as a skin covering sheet for impregnating cosmetics.

-：即使裝配於肌膚仍無密著感，容易剝離。 -: Even if it is attached to the skin, it does not have a tight feeling and is easy to peel off.

(3)柔軟性 (3) Softness

+++：非常柔軟且肌膚感覺良好，不織布表面完全無刺激感。 +++: Very soft and skin feels good, the non-woven surface is completely non-irritating.

++：觸感柔軟且肌膚感覺佳，不織布表面之刺激亦少。 ++: Soft to the touch and good skin, with less irritation on the non-woven surface.

+：觸感有堅硬感，但無強烈刺激感，可使用作為含浸化妝料之皮膚被覆片。 +: Hard touch, but no strong irritation, can be used as skin covering sheet impregnated with cosmetics.

-：不織布堅硬，皮膚感受到刺痛之強烈刺激。 -: The non-woven fabric is hard and the skin feels a strong irritation of tingling.

(4)展開性 (4) Expandability

+++：不織布彼此之間無黏貼，可簡單地且短時間內完全展開。 +++: Non-woven fabrics have no sticking to each other, and can be fully unfolded simply and in a short time.

++：不織布彼此之間有黏貼，可簡單地完全展開。 ++: The non-woven fabrics have sticking to each other and can be simply unfolded completely.

+：可完全展開，但不織布彼此黏貼，直到攤開為止需要些許時間。 +: It can be fully expanded, but the non-woven fabrics stick to each other, and it takes a little time until it is spread out.

-：一部分無法展開或完全展開相當需要時間。 -: It takes time to partially or completely expand.

(5)展開後之耐延展性 (5) Ductility after expansion

+++：展開後，不織布幾乎沒有延展。 +++: When expanded, the non-woven fabric is barely stretched.

++：展開後，不織布有些許延展。 ++: After unfolding, the non-woven fabric is slightly extended.

+：展開後，不織布有延展，但形狀變形在可使用之程度內。 +: After unfolding, the non-woven fabric is stretched, but the shape is deformed to the extent that it can be used.

-：展開後，不織布有延展，形狀大幅變形。 -: After unfolding, the non-woven fabric is stretched and the shape is greatly deformed.

關於單層型，如同表1所示，實施例1之不織布在使用感評估項目之透明感、密著感、柔軟性、展開性及展開後之耐延展性中，獲得透明感、展開性及展開後之耐延展性皆為「++」以上之評估且任何項目皆無「-」評估之高評估，適宜使用作為含浸化妝料之皮膚被覆片。與實施例1之不織布相比，比較例1之不織布，係展開性及展開後之耐延展性差。實施例2至7、9、10之不織布亦獲得透明感、展開性及展開後之耐延展性皆為「++」以 上之評估且任何項目皆無「-」評估之高評估，適宜使用作為含浸化妝料之皮膚被覆片。比起實施例1至7、9、10之不織布，實施例8之不織布之適宜性雖較差，但透明感為「++」以上之評估，且與比較例1之不織布相比時，展開性優異。認為此係因比較例1中，纖維間雖然交纏，但由於未使用熱接著性纖維而未熱接著，相對於此，本案發明之實施例1至10中，滿足本案發明之各種條件，尤其，如同從不織布之纖維素系混合纖維層之剖面之電子顯微鏡照片(第1圖)所理解得知，由第1纖維素系纖維與熱接著纖維所構成之纖維素系混合纖維層中，構成纖維之交點之至少一部分藉由熱接著性纖維而熱接著，藉此成為在濕潤狀態下顯示高透明感，同時處理性提升者。 Regarding the single-layer type, as shown in Table 1, the non-woven fabric of Example 1 obtained transparency, spreadability, and spreadability after deployment in the sense of transparency, adhesion, softness, spreadability, and stretch resistance after deployment. After the expansion, the ductility is evaluated above "++" and there is no high evaluation of "-" evaluation for any item. It is suitable for use as a skin cover sheet impregnated with cosmetics. Compared with the non-woven fabric of Example 1, the non-woven fabric of Comparative Example 1 is inferior in spreadability and ductility after expansion. The non-woven fabrics of Examples 2 to 7, 9, and 10 also obtained transparency, spreadability, and stretch resistance after expansion were "++" to The above evaluation and any item does not have a high evaluation of "-" evaluation, it is suitable to use as a skin covering sheet impregnated with cosmetics. Compared with the non-woven fabrics of Examples 1 to 7, 9, and 10, although the suitability of the non-woven fabric of Example 8 was poor, the transparency was evaluated as "++" or more, and the expandability was compared with the non-woven fabric of Comparative Example 1. Excellent. It is considered that this is because the fibers in the comparative example 1 are entangled, but the thermal adhesive fibers are not used but not thermally bonded. In contrast, the examples 1 to 10 of the present invention satisfy various conditions of the present invention, especially As can be understood from the electron micrograph (Fig. 1) of the cross section of the cellulose-based mixed fiber layer of the non-woven fabric, the cellulose-based mixed fiber layer composed of the first cellulose-based fiber and the heat-bonded fiber constitutes At least a part of the intersection of the fibers is heat-bonded by the heat-adhesive fiber, thereby becoming a person who exhibits high transparency in a wet state and improves handling properties.

關於積層型，如同表2所示，實施例11之不織布在使用感評估項目之透明感、密著感、柔軟性、展開性及展開後之耐延展性中，獲得透明感、展開性及展開後之耐延展性皆為「++」以上之評估且任何項目皆無「-」評估之高評估，適宜使用作為含浸化妝料之皮膚被覆片。與實施例11之不織布相比，比較例2之不織布係展開後之耐延展性差。實施例12之不織布亦獲得透明感、展開性及展開後之耐延展性皆為「++」以上之評估且任何項目皆無「-」評估之高評估，適宜使用作為含浸化妝料之皮膚被覆片。認為此係因比較例2中，纖維間雖然交纏，但由於未使用熱接著性纖維而未熱接著，相對於此，本案發明之實施例11、12中，滿足本案發明之各種條件，尤其，由 第1纖維素系纖維與熱接著纖維所構成之纖維素系混合纖維層中，構成纖維之交點之至少一部分藉由熱接著性纖維而熱接著，藉此成為在濕潤狀態下顯示高透明感，同時處理性提升者。 Regarding the laminated type, as shown in Table 2, the non-woven fabric of Example 11 obtained transparency, spreadability, and spreadability after being evaluated in the sense of transparency, adhesion, softness, spreadability, and spreadability after expansion of the usability evaluation items. The subsequent elongation resistance is evaluated above "++" and there is no high evaluation of "-" evaluation for any item, and it is suitable to use as a skin covering sheet for impregnating cosmetics. Compared with the non-woven fabric of Example 11, the non-woven fabric of Comparative Example 2 was inferior in elongation resistance after being expanded. The non-woven fabric of Example 12 also obtained the evaluation of transparency, spreadability, and spreadability after expansion were all "++" or higher and no item had a high evaluation of "-" evaluation. It is suitable to be used as a skin covering sheet for impregnating cosmetics. . It is considered that this is because the fibers are entangled in Comparative Example 2, but because the heat-adhesive fibers are not used, they are not thermally bonded. In contrast, in Examples 11 and 12 of the present invention, various conditions of the present invention were satisfied, especially ,by In the cellulose-based mixed fiber layer composed of the first cellulose-based fiber and the heat-adhesive fiber, at least a part of the intersection of the constituent fibers is heat-bonded by the heat-adhesive fiber, thereby exhibiting high transparency in a wet state. At the same time deal with sexual enhancers.

又，如同從表2中所理解，比較例3至6之不織布雖然使用熱接著性纖維，但與實施例11、12之不織布相比，透明感較差，並且比較例4、6中展開性亦差。認為比較例3中，由於不織布整體之單位面積質量過高，因此係透明感降低者。認為比較例4中，由於不織布整體中之熱接著性纖維之含量少，因此係展開性不充分者。認為比較例5中，由於不織布整體中之第1纖維素系纖維之含量少，因此係透明感降低者。認為比較例6中，由於不織布整體之單位面積質量過高，且不織布整體中之第1纖維素系纖維之含量少，第2纖維素系纖維之含量多，因此係透明感降低、展開性不充分者。 Also, as understood from Table 2, although the nonwoven fabrics of Comparative Examples 3 to 6 used heat-adhesive fibers, they had poorer transparency than the nonwoven fabrics of Examples 11 and 12, and the spreadability in Comparative Examples 4 and 6 was also poor. difference. It is considered that in Comparative Example 3, since the mass per unit area of the entire nonwoven fabric was too high, the transparency was reduced. It is considered that in Comparative Example 4, since the content of the heat-adhesive fiber in the entire nonwoven fabric was small, it was the one with insufficient spreadability. In Comparative Example 5, it is considered that since the content of the first cellulose-based fibers in the entire nonwoven fabric is small, the transparency is reduced. It is considered that in Comparative Example 6, since the mass per unit area of the entire non-woven fabric is too high, and the content of the first cellulose-based fiber is small and the content of the second cellulose-based fiber is large in the entire non-woven fabric, the transparency is reduced and the spreadability is not good. Full

(產業上之可利用性) (Industrial availability)

本發明之不織布係適宜使用作為含浸化妝料之面膜等基材。 The nonwoven fabric of the present invention is suitably used as a base material such as a mask impregnated with a cosmetic.

本案係依據2014年3月31日在日本國申請之日本特願2014-72535而主張優先權，其記載內容全部藉由參照而援引至本說明書中。 This case claims priority based on Japanese Patent Application No. 2014-72535 filed in Japan on March 31, 2014, and all of its contents are incorporated into this specification by reference.

Claims (17)

一種含浸化妝料之皮膚被覆片用不織布，係含有1層以上之纖維素系混合纖維層之不織布，前述1層以上之纖維素系混合纖維層係在各層中含有50質量%以上之第1纖維素系纖維、及8質量%以上且40質量%以下之熱接著性纖維，構成纖維之交點之至少一部分係藉由熱接著性纖維而熱接著，前述第1纖維素系纖維係纖維長度為20mm以上且110mm以下，且係選自由黏液嫘縈、溶劑紡絲纖維素、銅氨嫘縈、二乙酸酯、及三乙酸酯所組成之群之至少1種，並滿足下述(a)或(b)之條件者：(a)折射率為1.6以上之無機化合物之含量為0.5質量%以下、灰分為5質量%以下之纖維素系纖維(b)折射率為1.6以上之無機化合物之含量為0.5質量%以下、折射率未達1.6之無機化合物之含量為5質量%以上且50質量%以下、灰分大於5質量%且50質量%以下之纖維素系纖維，前述不織布整體具有25g/m2以上且48g/m2以下之單位面積質量，前述不織布整體中之第1纖維素系纖維之含量為40.5質量%以上，熱接著性纖維之含量為8質量%以上。A non-woven fabric for skin covering sheet impregnated with a cosmetic, which is a non-woven fabric containing one or more cellulose-based mixed fiber layers. The above-mentioned one or more cellulose-based mixed fiber layers contain 50% by mass or more of the first fiber in each layer. Plain fibers and heat-adhesive fibers of 8% by mass to 40% by mass. At least a part of the intersection points of the fibers is thermally bonded by the thermal-adhesive fibers. The length of the first cellulose-based fiber is 20 mm. Above and below 110 mm, it is at least one selected from the group consisting of mucilage, solvent-spun cellulose, copper ammonia, diacetate, and triacetate, and satisfies the following (a) Or (b) conditions: (a) cellulose fibers with a refractive index of 1.6 or more and a content of 0.5% by mass or less and an ash content of 5% by mass or less; (b) inorganic compounds with a refractive index of 1.6 or more For cellulose-based fibers having a content of 0.5% by mass or less and an inorganic compound having a refractive index of less than 1.6, a content of 5% by mass or more and 50% by mass or less, an ash content of 5% by mass or more, and 50% by mass or less, the aforementioned nonwoven fabric has m 2 or more and 48g / m 2 to The mass per unit area, the content of the cellulose-based non-woven fibers as a whole in the first to 40.5% by mass or more, and then heat the fiber content of 8% by mass or more. 如申請專利範圍第1項所述之含浸化妝料之皮膚被覆片用不織布，其中，熱接著性纖維包含鞘芯型複合纖維。The non-woven fabric for a skin covering sheet impregnated with a cosmetic according to item 1 of the scope of patent application, wherein the heat-adhesive fiber includes a sheath-core type composite fiber. 如申請專利範圍第2項所述之含浸化妝料之皮膚被覆片用不織布，其中，鞘芯型複合纖維係由含有第1聚烯烴系樹脂或聚酯系樹脂之芯部、與含有具有較該第1聚烯烴系樹脂或聚酯系樹脂之熔點更低熔點之第2聚烯烴系樹脂之鞘部所構成者。The non-woven fabric for a skin covering sheet impregnated with a cosmetic according to item 2 of the scope of the patent application, wherein the sheath-core composite fiber is composed of a core containing a first polyolefin resin or a polyester resin, and The first polyolefin-based resin or polyester-based resin has a lower melting point than the second polyolefin-based resin. 如申請專利範圍第1項所述之含浸化妝料之皮膚被覆片用不織布，其中，熱接著性纖維包含源自分割型複合纖維之纖維。The non-woven fabric for a skin covering sheet impregnated with a cosmetic according to item 1 of the scope of patent application, wherein the heat-adhesive fiber includes a fiber derived from a split type composite fiber. 如申請專利範圍第4項所述之含浸化妝料之皮膚被覆片用不織布，其中，分割型複合纖維係由第1聚烯烴系樹脂或聚酯系樹脂、與具有較該第1聚烯烴系樹脂或聚酯系樹脂之熔點更低熔點之第2聚烯烴系樹脂之組合所構成者。The non-woven fabric for a skin covering sheet impregnated with a cosmetic according to item 4 of the scope of patent application, wherein the split type composite fiber is composed of a first polyolefin resin or a polyester resin, and Or a combination of a second polyolefin-based resin having a lower melting point than a polyester-based resin. 如申請專利範圍第1項所述之含浸化妝料之皮膚被覆片用不織布，其中，第1纖維素系纖維係選自由黏液嫘縈、溶劑紡絲纖維素、及銅氨嫘縈所組成之群之至少1種。The non-woven fabric for skin covering sheet impregnated with cosmetics as described in item 1 of the scope of the patent application, wherein the first cellulose-based fiber is selected from the group consisting of mucilage, solvent-spun cellulose, and copper ammonia. At least one of them. 如申請專利範圍第1項所述之含浸化妝料之皮膚被覆片用不織布，其係由1層前述纖維素系混合纖維層所構成者。The non-woven fabric for a skin covering sheet impregnated with a cosmetic according to item 1 of the scope of the patent application, is composed of one layer of the aforementioned cellulose-based mixed fiber layer. 如申請專利範圍第1項所述之含浸化妝料之皮膚被覆片用不織布，其係積層1層前述纖維素系混合纖維層、和含有多於50質量%之纖維長度為0.5mm以上且未達20mm之第2纖維素系纖維或纖維長度超過110mm之第3纖維素系纖維之其他纖維素系纖維層、或者由纖維長度超過110mm或連續纖維且灰分為0.5質量%以下之熱可塑性樹脂系纖維所構成之長纖維不織布層。The non-woven fabric for skin covering sheet impregnated with cosmetics as described in item 1 of the scope of patent application, which is composed of one layer of the aforementioned cellulose-based mixed fiber layer, and contains more than 50% by mass of fiber with a length of 0.5 mm or more and less than 20mm second cellulose-based fiber or other cellulose-based fiber layer of a third cellulose-based fiber with a length of more than 110mm, or thermoplastic resin-based fiber with a fiber length of more than 110mm or continuous fiber and an ash content of 0.5% by mass or less A long-fiber non-woven fabric layer. 如申請專利範圍第1項所述之含浸化妝料之皮膚被覆片用不織布，其係在2層前述纖維素系混合纖維層之間積層含有多於50質量%之纖維長度為0.5mm以上且未達20mm之第2纖維素系纖維或纖維長度超過110mm之第3纖維素系纖維之其他纖維素系纖維層、或者由纖維長度超過110mm或連續纖維且灰分為0.5質量%以下之熱可塑性樹脂系纖維所構成之長纖維不織布層。The non-woven fabric for skin covering sheet impregnated with cosmetics as described in item 1 of the scope of the patent application, which is composed of two layers of the aforementioned cellulose-based mixed fiber layer and contains more than 50% by mass of fiber having a length of 0.5 mm or more and not Second cellulose-based fibers up to 20 mm or other cellulose-based fiber layers of third cellulose-based fibers having a fiber length exceeding 110 mm, or thermoplastic resin systems consisting of fiber lengths exceeding 110 mm or continuous fibers and having an ash content of 0.5% by mass or less Long fiber non-woven layer made of fibers. 如申請專利範圍第8項或第9項所述之含浸化妝料之皮膚被覆片用不織布，其中，前述不織布整體中之第2纖維素系纖維或第3纖維素系纖維之含量或者熱可塑性樹脂系纖維之含量係50質量%以下。The non-woven fabric for a skin covering sheet impregnated with a cosmetic according to item 8 or item 9 of the scope of patent application, wherein the content of the second cellulose-based fiber or the third cellulose-based fiber or the thermoplastic resin in the entire non-woven fabric The content of the system fiber is 50% by mass or less. 如申請專利範圍第8項所述之含浸化妝料之皮膚被覆片用不織布，其中，前述其他纖維素系纖維層係含有多於50質量%之紙漿纖維作為第2纖維素系纖維。The non-woven fabric for a skin covering sheet impregnated with a cosmetic according to item 8 of the scope of the patent application, wherein the other cellulose-based fiber layer contains more than 50% by mass of pulp fibers as the second cellulose-based fiber. 如申請專利範圍第9項所述之含浸化妝料之皮膚被覆片用不織布，其中，前述其他纖維素系纖維層係含有多於50質量%之紙漿纖維作為第2纖維素系纖維。The non-woven fabric for a skin covering sheet impregnated with a cosmetic according to item 9 of the scope of the patent application, wherein the other cellulose-based fiber layer contains more than 50% by mass of pulp fibers as the second cellulose-based fiber. 一種如申請專利範圍第1項所述之含浸化妝料之皮膚被覆片用不織布之製造方法，其係包括下述步驟：將1片以上之纖維素系混合纖維薄片，依情況，對含有多於50質量%之纖維長度為0.5mm以上且未達20mm之第2纖維素系纖維或纖維長度超過110mm之第3纖維素系纖維之其他纖維素系纖維薄片、或者由纖維長度超過110mm或連續纖維且灰分為0.5質量%以下之熱可塑性樹脂系纖維所構成之長纖維不織布薄片一起施以壓製處理及熱處理，將該1片以上之纖維素系混合纖維薄片及該其他纖維素系纖維薄片或該長纖維不織布薄片分別作為前述1層以上之纖維素系混合纖維層及前述其他纖維素系纖維層或前述長纖維不織布層，並使由此所得之不織布之表面平滑化；以及使熱接著性纖維之至少一部分熔融，將構成纖維之交點之至少一部分藉由熱接著性纖維而熱接著；其中，上述1片以上之纖維素系混合纖維薄片係在各薄片中含有50質量%以上之第1纖維素系纖維、及8質量%以上且40質量%以下之熱接著性纖維，前述第1纖維素系纖維係纖維長度為20mm以上且110mm以下，且係選自由黏液嫘縈、溶劑紡絲纖維素、銅氨嫘縈、二乙酸酯、及三乙酸酯所組成之群之至少1種，並滿足下述(a)或(b)之條件：(a)折射率為1.6以上之無機化合物之含量為0.5質量%以下、灰分為5質量%以下之纖維素系纖維(b)折射率為1.6以上之無機化合物之含量為0.5質量%以下、折射率未達1.6之無機化合物之含量為5質量%以上且50質量%以下、灰分大於5質量%且50質量%以下之纖維素系纖維。A method for manufacturing a non-woven fabric for impregnating a skin-covering sheet as described in item 1 of the scope of the patent application, which comprises the following steps: one or more cellulose-based mixed fiber flakes, depending on the situation, containing more than 50% by mass of a second cellulose-based fiber having a fiber length of 0.5 mm or more and less than 20 mm or other cellulose-based fiber sheets having a fiber length exceeding 110 mm and a third cellulose-based fiber, or a fiber length exceeding 110 mm or continuous fibers The long-fiber non-woven sheet made of thermoplastic resin-based fibers having an ash content of 0.5% by mass or less is subjected to a pressing treatment and a heat treatment, and the one or more cellulose-based mixed fiber sheets and the other cellulose-based fiber sheets or the The long-fiber non-woven sheet is used as the one or more cellulose-based mixed fiber layers and the other cellulose-based fiber layers or the long-fiber non-woven layers, respectively, and smoothes the surface of the non-woven fabric thus obtained; and heat-bondable fibers At least a part of the fiber is melted, and at least a part of the intersection point of the fibers is thermally bonded by thermally bonding the fibers; The above-mentioned cellulose-based mixed fiber sheet contains 50% by mass or more of the first cellulose-based fibers and 8% by mass or more and 40% by mass or less of thermally-adhesive fibers in each sheet. The fiber length is 20 mm or more and 110 mm or less, and is at least one selected from the group consisting of slime rayon, solvent-spun cellulose, copper ammonia cyanide, diacetate, and triacetate, and satisfies the following (A) or (b): (a) cellulose fibers with a refractive index of 1.6 or more and a content of 0.5% by mass or less and an ash content of 5% by mass or less (b) a fiber with a refractive index of 1.6 or more Cellulose fibers having an inorganic compound content of 0.5% by mass or less, an inorganic compound having a refractive index of less than 1.6 and a content of 5% to 50% by mass, and an ash content of 5% to 50% by mass. 如申請專利範圍第13項所述之含浸化妝料之皮膚被覆片用不織布之製造方法，其中，壓製處理係藉由將前述1片以上之纖維素系混合纖維薄片，依情況與前述其他纖維素系纖維薄片或前述長纖維不織布薄片一起通過一對輥間來實施。According to the method for manufacturing a non-woven fabric for impregnating a skin covering sheet according to item 13 of the scope of the patent application, the pressing treatment is performed by mixing one or more cellulose-based mixed fiber sheets as described above with other celluloses as appropriate. The system fiber sheet or the long-fiber nonwoven fabric sheet is passed through a pair of rollers together. 如申請專利範圍第13項所述之含浸化妝料之皮膚被覆片用不織布之製造方法，其係在壓製處理及熱處理之前另包含將前述1片以上之纖維素系混合纖維薄片，依情況與前述其他纖維素系纖維薄片或前述長纖維不織布薄片一起施以水流交纏處理。According to the method for manufacturing a non-woven fabric for impregnating a skin covering sheet according to item 13 of the scope of application for a patent, the method further comprises, before the pressing treatment and the heat treatment, adding one or more of the aforementioned cellulose-based mixed fiber flakes according to the situation and the foregoing. Other cellulose-based fiber sheets or the long-fiber non-woven sheet are subjected to water entanglement treatment together. 如申請專利範圍第13項所述之含浸化妝料之皮膚被覆片用不織布之製造方法，其中，壓製處理係對前述1片以上之纖維素系混合纖維薄片及依情況之前述其他纖維素系纖維薄片或前述長纖維不織布薄片，在濕潤狀態下實施者。The method for manufacturing a non-woven fabric for skin covering sheet impregnated with a cosmetic according to item 13 of the scope of the patent application, wherein the pressing treatment is performed on one or more of the cellulose-based mixed fiber sheet and other cellulose-based fibers as appropriate. The sheet or the long-fiber nonwoven sheet is applied in a wet state. 一種含浸化妝料之皮膚被覆片，其係將如申請專利範圍第1項所述之含浸化妝料之皮膚被覆片用不織布作為基材，係相對於該基材100質量份，以化妝料為150質量份以上且2500質量份以下之範圍內之比例含浸。A skin covering sheet impregnated with a cosmetic, the non-woven fabric is used as a base material for the skin covering sheet impregnated with a cosmetic material as described in item 1 of the scope of patent application, and 100 parts by mass of the base material is used, and the cosmetic material is 150. Impregnation is performed at a ratio in the range of not less than 2,000 parts by mass and not more than 2500 parts by mass.
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