JP2017150110A - Cellulose fiber nonwoven fabric for face mask - Google Patents
Cellulose fiber nonwoven fabric for face mask Download PDFInfo
- Publication number
- JP2017150110A JP2017150110A JP2016034765A JP2016034765A JP2017150110A JP 2017150110 A JP2017150110 A JP 2017150110A JP 2016034765 A JP2016034765 A JP 2016034765A JP 2016034765 A JP2016034765 A JP 2016034765A JP 2017150110 A JP2017150110 A JP 2017150110A
- Authority
- JP
- Japan
- Prior art keywords
- nonwoven fabric
- face mask
- fiber nonwoven
- cellulose fiber
- cellulose
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Nonwoven Fabrics (AREA)
- Cosmetics (AREA)
Abstract
Description
肌との密着性が高く、薬液を均一に肌へ移行することに優れ、浸透感を実感することができるフェイスマスク用セルロース繊維不織布に関する。 The present invention relates to a cellulose fiber non-woven fabric for a face mask that has high adhesion to the skin, is excellent in uniformly transferring a chemical solution to the skin, and can realize a sense of penetration.
従来、セルロース繊維不織布は美容向けのフェイスマスクとして広く使用されている。例えば、銅アンモニアレーヨン原液を流下緊張法によりウエブ化しウエブ化時に繊維が自己接着し、その後、高圧水流処理で３次元交絡を行って不織布化した再生セルロース連続長繊維不織布は乾燥時の白色係数や湿潤時の透明性が高くフェイスマスク装着時における抵抗感が少ない再生セルロース繊維不織布として開発されている（例えば、下記特許文献１参照）。また、低圧水流にて波模様加工を施したセルロース繊維不織布も開発されており拭き取り用途として展開されている（例えば、下記特許文献２参照）。 Conventionally, a cellulose fiber nonwoven fabric has been widely used as a face mask for beauty. For example, a regenerated cellulose continuous long fiber non-woven fabric obtained by web-forming a copper ammonia rayon stock solution by the falling tension method and self-adhering the fibers at the time of web formation, and then forming a non-woven fabric by three-dimensional entanglement by high-pressure water flow treatment, It has been developed as a regenerated cellulose fiber nonwoven fabric that has high transparency when wet and little resistance when worn with a face mask (see, for example, Patent Document 1 below). Moreover, the cellulose fiber nonwoven fabric which gave the wave pattern process by the low-pressure water flow is also developed, and is expand | deployed as a wiping use (for example, refer patent document 2 below).
しかしながら、近年需要が拡大してきた美容向けのフェイスマスク用専用の不織布の開発は十分でなく、以下のような問題点があった。
（１）肌への密着性が不十分であること；
（２）肌への薬液移行性において均一性が不十分であること；
（３）薬液が肌に浸透する感覚を認識できないこと。
However, the development of a non-woven fabric for face masks for beauty use, for which demand has been increasing in recent years, has not been sufficiently developed, and has the following problems.
(1) Inadequate adhesion to the skin;
(2) Insufficient uniformity in the chemical transfer to the skin;
(3) Inability to recognize the sense that the chemical solution penetrates into the skin.
本発明の課題は、上記問題点を解決し、肌との密着性が高く、薬液を均一に肌へ移行することに優れ、浸透感を実感することができるフェイスマスク用不織布を提供することである。 An object of the present invention is to solve the above-mentioned problems, to provide a non-woven fabric for face mask that has high adhesion to the skin, is excellent in uniformly transferring a chemical solution to the skin, and can realize a sense of penetration. is there.
本発明者等は上記課題を解決するために鋭意研究し実験を重ねた結果、フェイスマスク用不織布を製造する工程において、乾燥直前に純水高圧水流交絡を施すことで、波長と振幅の比（波長／振幅）が１．５ｍｍ／ｍｍ以上１４．０ｍｍ／ｍｍ以下であるＳｉｎカーブ模様を有し、乾燥状態における地合指数が２４０以下、湿潤状態における透明度が６０％以上のフェイスマスク用不織布が得られ、この不織布が上記課題を解決することを見出し、本発明を完成させるに至った。即ち、本発明は、以下の構成を有している。 As a result of intensive studies and experiments conducted by the present inventors to solve the above-mentioned problems, in the process of producing a non-woven fabric for face masks, the ratio of wavelength and amplitude ( A non-woven fabric for face masks having a Sin curve pattern with a wavelength / amplitude) of 1.5 mm / mm or more and 14.0 mm / mm or less, a formation index in a dry state of 240 or less, and a transparency in a wet state of 60% or more. As a result, it was found that this nonwoven fabric solves the above-mentioned problems, and the present invention has been completed. That is, the present invention has the following configuration.
［１］以下の特徴：
（１）Ｓｉｎカーブ模様を有しており、波長と振幅の比（波長／振幅）が１．５ｍｍ／ｍｍ以上１４．０ｍｍ／ｍｍ以下である；
（２）乾燥状態における地合指数が２４０以下の範囲である；及び
（３）湿潤状態における透明度が６０％以上である；
を有する、フェイスマスク用セルロース繊維不織布。
［２］前記不織布の水抽出物量が１０００ｐｐｍ以下である、前記［１］に記載のフェイスマスク用セルロース繊維不織布。
［３］前記不織布を構成する繊維がセルロース繊維１００ｗｔ％である、前記［１］又は［２］に記載のフェイスマスク用セルロース繊維不織布。
［４］前記不織布を構成する繊維が連続長繊維である、前記［１］〜［３］のいずれかに記載のフェイスマスク用セルロース繊維不織布。
［５］前記［１］〜［４］のいずれかに記載のフェイスマスク用セルロース繊維不織布１００重量部に対して、液体化粧料又は清拭用薬液が１００重量部以上２０００重量部以下の範囲の割合で含浸されているフェイスマスク。
[1] The following features:
(1) It has a Sin curve pattern, and the ratio of wavelength to amplitude (wavelength / amplitude) is 1.5 mm / mm or more and 14.0 mm / mm or less;
(2) The formation index in the dry state is in the range of 240 or less; and (3) The transparency in the wet state is 60% or more;
A cellulose fiber nonwoven fabric for face masks.
[2] The cellulose fiber nonwoven fabric for face masks according to [1], wherein the amount of water extract of the nonwoven fabric is 1000 ppm or less.
[3] The cellulose fiber nonwoven fabric for face masks according to [1] or [2], wherein the fibers constituting the nonwoven fabric are 100 wt% cellulose fibers.
[4] The cellulose fiber nonwoven fabric for face masks according to any one of [1] to [3], wherein the fibers constituting the nonwoven fabric are continuous long fibers.
[5] With respect to 100 parts by weight of the cellulose fiber nonwoven fabric for face masks according to any one of [1] to [4], the liquid cosmetic or the wiping chemical liquid is in a range of 100 parts by weight to 2000 parts by weight. Face mask impregnated in proportion.
本発明の不織布から得られるフェイスマスクは、肌との密着性が高く、薬液を均一に肌へ移行することに優れ、浸透感を実感することができるフェイスマスクである。 The face mask obtained from the nonwoven fabric of the present invention is a face mask that has high adhesion to the skin, is excellent in uniformly transferring a chemical solution to the skin, and can realize a sense of penetration.
以下、本発明の実施形態を詳細に説明する。
本実施形態に用いるセルロース繊維としては、特に制限はなく銅アンモニアレーヨン、ビスコースレーヨン、テンセル（リヨセル）、ポリノジック等の再生セルロース繊維、コットン、パルプ、麻等の天然セルロース繊維が挙げられるが、再生セルロース繊維が好ましい。連続長繊維でも短繊維でも構わないが、連続長繊維は、短繊維のものよりもよりリントフリー性に優れフェイスマスク着用時のチクチク感がなく、吸液性や強度にも優れている。
本実施形態のフェイスマスク用セルロース繊維不織布には、上記セルロース繊維が５０ｗｔ％以上含まれていることが望ましく、より好ましくは７０ｗｔ％以上であり、更に好ましくは９０ｗｔ％以上である。セルロース繊維が５０ｗｔ％未満であると、薬液の保持性や密着性が十分ではなく、フェイスマスク用不織布としては好ましくない。
Hereinafter, embodiments of the present invention will be described in detail.
The cellulose fiber used in this embodiment is not particularly limited, and examples thereof include regenerated cellulose fibers such as copper ammonia rayon, viscose rayon, tencel (lyocell), polynosic, and natural cellulose fibers such as cotton, pulp, and hemp. Cellulose fibers are preferred. Although continuous long fibers or short fibers may be used, the continuous long fibers are more lint-free than the short fibers, have no tingling sensation when wearing a face mask, and are excellent in liquid absorbency and strength.
The cellulose fiber nonwoven fabric for face masks of this embodiment desirably contains 50 wt% or more of the cellulose fiber, more preferably 70 wt% or more, and still more preferably 90 wt% or more. When the cellulose fiber is less than 50 wt%, the chemical liquid retainability and adhesion are not sufficient, which is not preferable as a nonwoven fabric for face mask.
バインダーや界面活性剤を付与したフェイスマスク用セルロース繊維不織布は、吸水性の低下や、成分の溶出が懸念されるため、本実施形態のフェイスマスク用セルロース繊維不織布はノーバインダーであることが好ましい。フェイスマスク用不織布の目付としては、２０ｇ／ｍ２以上１２０ｇ／ｍ２以下であることが好ましく、より好ましくは２５ｇ／ｍ２以上１００ｇ／ｍ２以下であり、更に好ましくは３０ｇ／ｍ２以上８０ｇ／ｍ２以下である。フェイスマスク用不織布の目付が２０ｇ／ｍ２未満であると、薄すぎるために取扱性が著しく低下し、実用的でなく、他方、１２０ｇ／ｍ２より大きいと、取扱性は優れるが、厚さが肌の動きに追随せず、着用感が低下する。 Since the cellulose fiber nonwoven fabric for a face mask to which a binder or a surfactant is added is concerned about a decrease in water absorption and elution of components, the cellulose fiber nonwoven fabric for a face mask of this embodiment is preferably a no binder. The basis weight of the nonwoven fabric for face mask is preferably 20 g / m 2 or more and 120 g / m 2 or less, more preferably 25 g / m 2 or more and 100 g / m 2 or less, and still more preferably 30 g / m 2 or more and 80 g. / M 2 or less. When the basis weight of the nonwoven fabric for face mask is less than 20 g / m 2, the handling property is significantly reduced due too thin, impractical, while larger than 120 g / m 2, but the handling property is excellent, thick Does not follow the movement of the skin, and the feeling of wearing is reduced.
本実施形態のフェイスマスク用セルロース繊維不織布の厚みは、０．２０ｍｍ以上０．６０ｍｍ以下であることが好ましい。より好ましくは、０．２５ｍｍ以上０．５０ｍｍ以下であり、更に好ましくは０．２５ｍｍ以上０．４５ｍｍ以下である。フェイスマスク用不織布の厚みが０．２０ｍｍ未満の場合、薄すぎるために地合斑が発生しやすく薬液移行性において均一性が低下する。０．６０ｍｍより大きい場合、湿潤時の透明度の低下やフェイスマスク着用感が低下する。 It is preferable that the thickness of the cellulose fiber nonwoven fabric for face masks of this embodiment is 0.20 mm or more and 0.60 mm or less. More preferably, they are 0.25 mm or more and 0.50 mm or less, More preferably, they are 0.25 mm or more and 0.45 mm or less. When the thickness of the non-woven fabric for the face mask is less than 0.20 mm, since it is too thin, formation unevenness is likely to occur, and the uniformity in the chemical solution transferability is lowered. When it is larger than 0.60 mm, the transparency when wet and the feeling of wearing a face mask are lowered.
本実施形態のフェイスマスク用セルロース繊維不織布は水流交絡による孔により形成されるＳｉｎカーブ模様を有している。Ｓｉｎカーブを有した不織布の場合、フェイスマスクを顔に着用するときに局所的に負荷がかかりフェイスマスクシートが変形することが少なくなった。また、フェイスマスクを顔に着用している最中に不織布へかかる力を分散させることで伸びも抑制することが可能になった。故に、Ｓｉｎカーブ模様はフェイスマスクの密着性に大きく寄与していると言える。更に、乾燥直前に純水高圧水流交絡を施しＳｉｎカーブ模様を有した不織布では吸液量が向上することがわかった。理由は明確ではないが、不織布に粗密部位を周期的に与えることでセルロース繊維間の水素結合力が最大限に発揮されたのではないかと思われる。かかるＳｉｎカーブは、波長と振幅の比（波長／振幅）が１．５ｍｍ／ｍｍ以上１４．０ｍｍ／ｍｍ以下であることが好ましく、より好ましくは３．０ｍｍ／ｍｍ以上１４．０ｍｍ／ｍｍ以下である。フェイスマスク用不織布のＳｉｎカーブの波長と振幅の比が１．５ｍｍ／ｍｍ未満であると、水流交絡によりできた孔数が単位面積当たりで多くなり、不織布の寸法回復性が低下し、密着性が低下する。特に経方向の孔数が増えることから強度が低下し回復性が低くなると考えられる。他方、１４．０ｍｍ／ｍｍより大きいと、緯方向において力の分散性が小さいために不織布が伸びやすく取扱性が低下する。定める範囲の波長と振幅の比であるＳｉｎカーブ模様により、密着性や吸液性が高い不織布が得られる。その結果、フェイスマスク剥離後の顔面上の薬液均一性や薬液移行量にも優れたフェイスマスク用セルロース繊維不織布になる。すなわち、フェイスマスク用不織布には、密着性（着用感）、薬液移行性（薬液量や均一性）、及び浸透する感覚の３つが共に満足されることが要求されるところ、密着性（着用感）は、Ｓｉｎカーブ模様、素材、連続長繊維を選択することにより、薬液移行性（薬液量や均一性）は、不織布の均一性、地合指数、密着性の高さ（Ｓｉｎカーブ模様）を選択することにより、そして浸透する感覚は、透明度を選択することにより、達成されうる。化学刺激性に関しては、如何にして抽出物量が少ない不織布とするかが課題となり、具体的には、親水剤やバインダーの有無と関係する。一般に、顔に着用するフェイスマスク用基材に不純物が入ると好ましくないので、以下の実施例において効果データとして加える。要するに、Ｓｉｎカーブ模様は、「密着性」、「薬液移行性」、「薬液移行量」に影響を及ぼす。前記したように、薬液移行性には、不織布の均一性も大きく影響するところ、地合斑が少ないこと、Ｓｉｎカーブ模様により密着性を発揮することの双方を併せ持った不織布はこれまで提供されていなかった。また、透明性は、薬液の肌への浸透感に直接的に寄与し、不織布が透明から白色に徐々に変化することで、肌へ浸透していることが目で実感できる。 The cellulose fiber nonwoven fabric for face masks of this embodiment has a Sin curve pattern formed by holes by hydroentanglement. In the case of a non-woven fabric having a Sin curve, the face mask sheet is less likely to be deformed due to local load when the face mask is worn on the face. Further, it is possible to suppress elongation by dispersing the force applied to the nonwoven fabric while wearing the face mask on the face. Therefore, it can be said that the Sin curve pattern greatly contributes to the adhesion of the face mask. Further, it was found that the amount of liquid absorption is improved in the nonwoven fabric having a sine curve pattern obtained by entanglement with pure water and high pressure water just before drying. The reason is not clear, but it seems that the hydrogen bonding force between cellulose fibers was exhibited to the maximum by periodically providing the dense and dense sites in the nonwoven fabric. The Sin curve preferably has a wavelength-to-amplitude ratio (wavelength / amplitude) of 1.5 mm / mm or more and 14.0 mm / mm or less, more preferably 3.0 mm / mm or more and 14.0 mm / mm or less. is there. When the ratio of the wavelength and amplitude of the Sin curve of the nonwoven fabric for face mask is less than 1.5 mm / mm, the number of holes formed by hydroentanglement increases per unit area, and the dimensional recoverability of the nonwoven fabric decreases, and the adhesion Decreases. In particular, since the number of holes in the warp direction increases, it is considered that the strength is lowered and the recoverability is lowered. On the other hand, if it is larger than 14.0 mm / mm, the dispersibility of the force in the weft direction is small, so that the nonwoven fabric is easily stretched and the handleability is lowered. Due to the Sin curve pattern, which is the ratio between the wavelength and the amplitude within a predetermined range, a non-woven fabric with high adhesion and liquid absorption can be obtained. As a result, it becomes a cellulose fiber nonwoven fabric for face masks that is excellent in the uniformity of the chemical solution on the face after peeling off the face mask and the amount of transferred chemical solution. That is, the non-woven fabric for face masks is required to satisfy the following three requirements: adhesion (wearing feeling), chemical transferability (chemical amount and uniformity), and permeation sensation. ) By selecting the Sin curve pattern, material, and continuous long fiber, the chemical transfer (chemical volume and uniformity) is the uniformity of the nonwoven fabric, the formation index, and the high adhesion (Sin curve pattern). By choosing and the penetrating sensation can be achieved by choosing transparency. Regarding chemical irritation, how to make a nonwoven fabric with a small amount of extract is a problem, and specifically relates to the presence or absence of a hydrophilic agent or a binder. In general, it is not preferable that impurities enter the face mask base material worn on the face, so it is added as effect data in the following examples. In short, the Sin curve pattern affects “adhesion”, “chemical solution transferability”, and “chemical solution transfer amount”. As described above, the non-woven fabric that has both the fact that the uniformity of the non-woven fabric greatly affects the chemical transferability, and that exhibits both adhesiveness due to the Sin curve pattern has been provided so far. There wasn't. Transparency directly contributes to the permeation feeling of the chemical solution into the skin, and the nonwoven fabric gradually changes from transparent to white, so that it can be visually perceived that it penetrates into the skin.
本実施形態のフェイスマスク用不織布の乾燥状態における地合指数が５０以上２４０以下であることが好ましい。より好ましくは１００以上２４０以下である。フェイスマスク用不織布の乾燥状態における地合指数が５０未満の場合、Ｓｉｎカーブ模様が不明瞭となりフェイスマスク密着性が低下する。２４０より大きい場合、不織布が不均一であるためフェイスマスク着用後の薬液移行性が不均一になる。 It is preferable that the formation index in the dry state of the nonwoven fabric for face masks of this embodiment is 50 or more and 240 or less. More preferably, it is 100 or more and 240 or less. When the formation index in the dry state of the non-woven fabric for face mask is less than 50, the Sin curve pattern becomes unclear and the face mask adhesion decreases. When it is larger than 240, the non-woven fabric is non-uniform, so that the chemical transferability after wearing the face mask becomes non-uniform.
本実施形態のフェイスマスク用セルロース繊維不織布の湿潤時の透明度は、６０％以上１００％以下であることが好ましく、より好ましくは６２％以上１００％以下である。フェイスマスク用セルロース繊維不織布の湿潤時の透明度が６０％未満であると、薬液が肌に浸透する感覚を認識し難い。 The wet transparency of the cellulose fiber nonwoven fabric for face mask of this embodiment is preferably 60% or more and 100% or less, and more preferably 62% or more and 100% or less. When the transparency of the cellulose fiber nonwoven fabric for face mask is less than 60% when wet, it is difficult to recognize the sense that the chemical solution penetrates into the skin.
本実施形態のフェイスマスク用セルロース繊維不織布の蒸留水による抽出物量は、不織布１ｋｇ当たり１０００ｍｇ以下であることが好ましく、より好ましくは９００ｍｇ／ｋｇ以下であり、更に好ましくは８００ｍｇ／ｋｇ以下である。フェイスマスク用セルロース繊維不織布の蒸留水による抽出物量が１０００ｍｇ／ｋｇより大きいと、フェイスマスク着用時に不純物の溶出が無視できず、化粧品用途では好ましくない。 The amount of extract of distilled water from the cellulose fiber nonwoven fabric for face mask of this embodiment is preferably 1000 mg or less per 1 kg of nonwoven fabric, more preferably 900 mg / kg or less, and still more preferably 800 mg / kg or less. When the amount of the extract of the cellulose fiber nonwoven fabric for face masks with distilled water is larger than 1000 mg / kg, elution of impurities cannot be ignored when wearing the face mask, which is not preferable for cosmetic use.
本実施形態のフェイスマスク用セルロース繊維不織布の製法は、例えば、以下のようである。
紡出した糸をネット上に振り落してシート状に積層した後、水流交絡を受ける。乾燥工程に入る直前の水流交絡において、純水を用いた高圧条件にて水流交絡を行う。乾燥工程に入る直前の水流交絡において、ウエブの進行方向と直角に往復運動するノズルから高圧条件で水流交絡を施すことでＳｉｎカーブ模様が鮮明となる。乾燥工程直前以外の水流交絡を高圧にした場合、繊維が泳ぎ地合斑が発生するため好ましくない。また、純水を用いた高圧水流交絡により不純物を取り除くことで透明度を上げ、抽出物量を下げることができる。
The manufacturing method of the cellulose fiber nonwoven fabric for face masks of this embodiment is as follows, for example.
The spun yarn is shaken off on the net and laminated into a sheet shape, and then subjected to hydroentanglement. In the hydroentanglement immediately before entering the drying process, hydroentanglement is performed under high pressure conditions using pure water. In the water entanglement immediately before entering the drying step, the Sin curve pattern becomes clear by applying water entanglement under high pressure conditions from a nozzle that reciprocates perpendicularly to the traveling direction of the web. If the hydroentanglement other than just before the drying step is set to a high pressure, it is not preferable because the fiber swims and uneven spots occur. Moreover, transparency can be raised and the amount of extract can be lowered by removing impurities by high-pressure water entangling using pure water.
以下、本発明を実施例により具体的に説明するが、本発明はこれらの実施例のみに何ら限定されるものではない。実施例に使用した測定方法を以下に示す。
（１）目付（ｇ／ｍ２）
０．０５ｍ２以上の面積のフェイスマスク用セルロース繊維不織布を１０５℃で一定質量になるまで乾燥後、２０℃、６５％ＲＨの恒温室に１６時間以上放置し、その質量を測定し、不織布ｍ２当たりの質量（ｇ）を求めた。
EXAMPLES Hereinafter, although an Example demonstrates this invention concretely, this invention is not limited to only these Examples at all. The measurement methods used in the examples are shown below.
(1) Weight per unit area (g / m 2 )
A cellulose fiber nonwoven fabric for face mask with an area of 0.05 m 2 or more is dried at 105 ° C. until it reaches a certain mass, then left in a constant temperature room at 20 ° C. and 65% RH for 16 hours or more, and the mass is measured. The mass (g) per 2 was determined.
（２）厚み（ｍｍ）
フェイスマスク用セルロース繊維不織布をＪＩＳ−Ｌ１０９６準拠の厚み試験に従い、荷重１．９６ｋＰａとして測定した。
(2) Thickness (mm)
The cellulose fiber nonwoven fabric for face masks was measured under a load of 1.96 kPa according to a thickness test in accordance with JIS-L1096.
（３）Ｓｉｎカーブ波長と振幅の比（ｍｍ／ｍｍ）
フェイスマスク用セルロース繊維不織布のＳｉｎカーブ模様の波長Ａ（ｍｍ）と振幅Ｂ（ｍｍ）を、３ヶ所、それぞれ、５回ずつ計測し、次式により算出した。
Ｓｉｎカーブ波長と振幅の比（ｍｍ／ｍｍ）＝ Ａ ／ Ｂ
(3) Sin curve wavelength to amplitude ratio (mm / mm)
The wavelength A (mm) and the amplitude B (mm) of the Sin curve pattern of the cellulose fiber nonwoven fabric for face mask were measured 5 times each at 3 locations and calculated by the following formula.
Sin curve wavelength to amplitude ratio (mm / mm) = A / B
（４）乾燥状態における地合指数
２０ｃｍ×２０ｃｍのフェイスマスク用不織布の地合指数を、地合計（野村商事製ＦＭＴ−Ｍ ＩＩＩ）を用いて測定した。
(4) Formation index in dry state The formation index of a 20 cm × 20 cm face mask non-woven fabric was measured using the total of the ground (FMT-M III manufactured by Nomura Corporation).
（５）湿潤時の透明度（％）
５ｃｍ×５ｃｍのフェイスマスク用セルロース繊維不織布をメッシュ（１０メッシュ、線径０．５ｍｍ）の上に載せ、これをバットに入れた水の中に入れて３０秒間浸漬した。その後、メッシュを引き上げて１０分間放置した後、過剰な水、水溶液を濾紙などで拭き取った。含水状態の不織布をガラス板に挟み、スガ試験機株式会社製積分球方式ＳＭ−Ｔを用いてＬ値を５回測定し、その平均値Ｃを用いて次式により湿潤時の透明度（％）を算出した。この時、ガラス板のみのＬ値も５回測定し、その平均値をＤとした。
湿潤時の透明度 ＝ １００−（Ｃ−Ｄ）
(5) Transparency when wet (%)
A cellulose fiber non-woven fabric for face mask of 5 cm × 5 cm was placed on a mesh (10 mesh, wire diameter 0.5 mm), and this was placed in water placed in a vat and immersed for 30 seconds. Thereafter, the mesh was pulled up and allowed to stand for 10 minutes, and then excess water and an aqueous solution were wiped off with a filter paper or the like. A wet non-woven fabric is sandwiched between glass plates, the L value is measured 5 times using an integrating sphere method SM-T manufactured by Suga Test Instruments Co., Ltd., and the average value C is used to determine the transparency (%) when wet. Was calculated. At this time, the L value of the glass plate alone was also measured five times, and the average value was taken as D.
Transparency when wet = 100- (CD)
（６）抽出物量（ｍｇ／ｋｇ）
フェイスマスク用セルロース繊維不織布４０ｇを入れたガラス瓶に蒸留水６４０ｇを加え、蓋をして１６時間放置した。抽出液は、濾過することによって繊維くずを取り除き、質量Ｅ（ｇ）を測定した。その後、濾過した抽出液は減圧蒸留を行い、抽出物（固体）の質量Ｆ（ｇ）を測定し、次式により抽出物量を算出した。
抽出物量 ＝ Ｆ／｛（Ｅ／６４０）×４０｝×１００００００
(6) Extract amount (mg / kg)
Distilled water (640 g) was added to a glass bottle containing 40 g of cellulose fiber nonwoven fabric for face mask, and the lid was covered and left for 16 hours. The extract was filtered to remove fiber waste, and the mass E (g) was measured. Thereafter, the filtered extract was distilled under reduced pressure, the mass F (g) of the extract (solid) was measured, and the amount of the extract was calculated by the following formula.
Extract amount = F / {(E / 640) × 40} × 1000000
（７）着用感（点）
フェイスマスクの付け心地がどのように感じるのか、被験者２０人での官能評価を行った。評価方法と判定基準は以下のとおりであり、２０人の平均値をそのサンプルの着用感官能評価の値とした。
評価方法：フェイスマスク型の不織布を蒸留水に浸漬させて１０分後、液だれがしない程度に軽く絞り、顔に貼りつけて、以下の判定項目について、以下の判断基準で評価した。
＜判定項目＞
１）肌への密着性が高い。
２）小顔効果が実感できる。
３）薬液が肌に浸透する感じがある。
４）着用時の不快感がない。
＜判断基準＞
５点：判断項目１〜４を全て満たす。
４点：判断項目１〜４の内３つの項目を満たす。
３点：判断項目１〜４の内２つの項目を満たす。
２点：判断項目１〜４の内１つの項目を満たす。
１点：判断項目１〜４の何れの項目も満たさない。
(7) Wearing feeling (point)
A sensory evaluation was conducted with 20 test subjects on how the feeling of wearing the face mask felt. The evaluation method and the judgment criteria are as follows, and the average value of 20 people was used as the value for sensory evaluation of the wearing feeling of the sample.
Evaluation method: A face mask type non-woven fabric was immersed in distilled water, and after 10 minutes, it was lightly squeezed to the extent that it did not drip and stuck on the face, and the following criteria were evaluated according to the following criteria.
<Judgment item>
1) High adhesion to skin.
2) A small face effect can be realized.
3) There is a feeling that the chemical solution penetrates into the skin.
4) No discomfort when worn.
<Judgment criteria>
5 points: Satisfy all judgment items 1 to 4.
4 points: Satisfy three items among the judgment items 1 to 4.
3 points: Satisfy two items among the judgment items 1 to 4.
2 points: Satisfies one of judgment items 1 to 4.
1 point: Does not satisfy any of the items 1-4.
（８）薬液移行性（点）
マネキンを用いて官能評価を行った。評価方法と判定水準は以下の通りであり、２０回の平均値をそのサンプルの薬液移行性の点数とした。
評価方法：フェイスマスク型の不織布１００重量部に対して赤色インクで着色した市販の化粧水（資生堂製）を１５００重量部付与し薬液をＦＭ全体に浸透させた。薬液が浸透したＦＭ型の不織布をマネキンへ貼り付け２０分後に剥離し、マネキン顔面上の薬液分布を観察し、以下の判断基準で評価した。
＜判定基準＞
３：顔全体に薬液が均一に分布している。
２：顔全体に薬液が分布しているが薬液量に斑がある。
１：顔全体に薬液が均一に分布していない。
(8) Chemical solution transferability (point)
Sensory evaluation was performed using a mannequin. The evaluation method and the judgment level are as follows, and the average value of 20 times was used as the chemical transferability score of the sample.
Evaluation method: 1500 parts by weight of a commercial lotion (manufactured by Shiseido) colored with red ink was applied to 100 parts by weight of the face mask type nonwoven fabric, and the chemical solution was permeated throughout the FM. The FM type nonwoven fabric into which the chemical solution penetrated was applied to the mannequin, peeled off after 20 minutes, the chemical solution distribution on the mannequin face was observed, and evaluated according to the following criteria.
<Criteria>
3: The drug solution is uniformly distributed over the entire face.
2: The chemical solution is distributed over the entire face, but the amount of the chemical solution is uneven.
1: The drug solution is not uniformly distributed over the entire face.
（９）薬液移行量（％）
薬液移行性試験において、マネキンへ貼り付ける直前において不織布が保持している薬液量Ｇ（ｇ）、剥離後不織布に残った薬液量Ｈ（ｇ）を測定し、次式により算出した。
薬液移行量（％） ＝ （Ｇ−Ｈ）／Ｇ ×１００
(9) Chemical transfer amount (%)
In the chemical liquid transfer test, the chemical amount G (g) retained by the nonwoven fabric immediately before being attached to the mannequin and the chemical amount H (g) remaining on the nonwoven fabric after peeling were measured and calculated by the following formula.
Chemical solution transfer amount (%) = (GH) / G × 100
（１０）化学的刺激性
純水１５０ｍＬが入ったビーカーに、サンプル５ｇを浸漬させる。５分後、ビーカーを１分間振りながら撹拌する。１００ｍＬのメスシリンダーに６０ｍＬの抽出液を取り、蓋をして上下に２０回振った。メスシリンダーを立てて１分間放置した時の泡立ちの状態を観察し、以下の判断基準で化学的刺激性を評価した。
＜判定基準＞
○：泡が無い状態か、ほとんど泡が目立たず液面に薄い筋状の泡が残る程度で壁面には泡は付着しない。
×：液面上に明らかに泡と分かる層が形成されており、シリンダーの壁面にも泡が付着している。
(10) Chemical irritation 5 g of the sample is immersed in a beaker containing 150 mL of pure water. After 5 minutes, stir while shaking the beaker for 1 minute. Into a 100 mL graduated cylinder, 60 mL of the extract was taken, covered, and shaken up and down 20 times. The state of foaming when the graduated cylinder was stood and left for 1 minute was observed, and chemical irritation was evaluated according to the following criteria.
<Criteria>
○: No bubbles on the wall surface, with no bubbles, or almost no bubbles are noticeable and thin streaky bubbles remain on the liquid surface.
X: The layer which can be recognized as a bubble clearly is formed on the liquid level, and the bubble adheres also to the wall surface of the cylinder.
［実施例１］
コットンリンターを銅アンモニア溶液で溶解し（コットンリンター１０ｗｔ％、アンモニア７ｗｔ％、銅３ｗｔ％）紡糸原液を準備した。紡糸原液を流下緊張下で連続してネット上に５層重ねで紡糸してセルロース連続長繊維ウエブを得た。得られたセルロース連続長繊維ウエブを希硫酸で再生し、水洗後得られた再生セルロース連続長繊維ウエブをコンベアーネット上にて２ＭＰａの低圧水流によって２回水流交絡処理を行った。得られたシートをウエブの進行方向と直角に振幅５．８ｍｍで往復運動させた６ＭＰａの純水高圧水流にて１回水流交絡させた後、１００℃の熱風で乾燥を行い、Ｓｉｎカーブ模様を有した再生セルロース連続長繊維不織布を得た。尚、ネットスピードは３０ｍ／ｍｉｎ．であった。得られた再生セルロース連続長繊維不織布は、目付が３９．９ｇ／ｍ２、厚みが０．２６ｍｍであった。得られた不織布の特性を以下の表１に、フェイスマスク用不織布としての評価結果を以下の表２に示す。
[Example 1]
Cotton linter was dissolved with a copper ammonia solution (cotton linter 10 wt%, ammonia 7 wt%, copper 3 wt%) to prepare a spinning dope. The spinning stock solution was continuously spun under flowing tension and spun into five layers on a net to obtain a continuous cellulose continuous fiber web. The obtained continuous cellulose continuous fiber web was regenerated with dilute sulfuric acid, and the regenerated cellulose continuous long fiber web obtained after washing with water was subjected to hydroentanglement treatment twice with a low-pressure water flow of 2 MPa on a conveyor net. The obtained sheet was entangled once with a 6 MPa pure water high-pressure water flow reciprocated at an amplitude of 5.8 mm perpendicular to the direction of travel of the web, and then dried with hot air at 100 ° C. to form a Sin curve pattern. A regenerated cellulose continuous long fiber nonwoven fabric was obtained. The net speed is 30 m / min. Met. The obtained regenerated cellulose continuous long fiber nonwoven fabric had a basis weight of 39.9 g / m 2 and a thickness of 0.26 mm. The characteristics of the obtained nonwoven fabric are shown in Table 1 below, and the evaluation results as a nonwoven fabric for face mask are shown in Table 2 below.
［実施例２］
ネットスピードを２０ｍ／ｍｉｎ．にし、往復運動の振幅を４．２ｍｍにしたこと以外は実施例１と同様の条件にて再生セルロース連続長繊維不織布を得た。得られた再生セルロース連続長繊維不織布は、目付が５９．７ｇ／ｍ２、厚みが０．４４ｍｍであった。得られた不織布の特性を以下の表１に、フェイスマスク用不織布としての評価結果を以下の表２に示す。
[Example 2]
Net speed is 20 m / min. Then, a regenerated cellulose continuous long-fiber nonwoven fabric was obtained under the same conditions as in Example 1 except that the amplitude of the reciprocating motion was 4.2 mm. The obtained regenerated cellulose continuous long fiber nonwoven fabric had a basis weight of 59.7 g / m 2 and a thickness of 0.44 mm. The characteristics of the obtained nonwoven fabric are shown in Table 1 below, and the evaluation results as a nonwoven fabric for face mask are shown in Table 2 below.
［実施例３］
ネットスピードを２５ｍ／ｍｉｎ．にし、純水高圧水流にて水流交絡をせずに乾燥させたこと以外は実施例１と同様の条件にて再生セルロース連続長繊維不織布を得た。得られた再生セルロース連続長繊維不織布を２枚重ねてウエブの進行方向と直角に振幅７．９ｍｍで往復運動させた６ＭＰａの純水高圧水流にて１回水流交絡させた後、１００℃の熱風で乾燥を行い、Ｓｉｎカーブ模様を有した再生セルロース連続長繊維不織布を得た。尚、ネットスピードは１４ｍ／ｍｉｎ．であった。得られた再生セルロース連続長繊維不織布は、目付が９９．８ｇ／ｍ２、厚みが０．４５ｍｍであった。得られた不織布の特性を以下の表１に、フェイスマスク用不織布としての評価結果を以下の表２に示す。
[Example 3]
Net speed is 25 m / min. Then, a regenerated cellulose continuous long-fiber nonwoven fabric was obtained under the same conditions as in Example 1 except that it was dried without pure water and high-pressure water entangled. The obtained regenerated cellulose continuous long-fiber nonwoven fabrics were superposed one by one with a 6 MPa pure water / high pressure water flow reciprocated at an amplitude of 7.9 mm perpendicular to the direction of travel of the web, and then hot air at 100 ° C. The dried cellulose continuous long fiber nonwoven fabric having a Sin curve pattern was obtained. The net speed is 14 m / min. Met. The obtained regenerated cellulose continuous long fiber nonwoven fabric had a basis weight of 99.8 g / m 2 and a thickness of 0.45 mm. The characteristics of the obtained nonwoven fabric are shown in Table 1 below, and the evaluation results as a nonwoven fabric for face mask are shown in Table 2 below.
［実施例４］
パルプをＮ−メチルモルフォリン−Ｎ−オキシド（ＮＭＭＯ）溶液で溶解し（パルプ１０ｗｔ％、ＮＭＭＯ５５ｗｔ％、水４５ｗｔ％）紡糸原液を準備した。紡糸原液をメルトブロー法で連続してネット上に７層重ねで紡糸してセルロース連続長繊維ウエブを得た。得られたセルロース連続長繊維ウエブを希ＮＭＭＯで再生し、水洗後得られた再生セルロース連続長繊維ウエブをコンベアーネット上にて２ＭＰａの低圧水流によって２回水流交絡処理を行った。得られたシートをウエブの進行方向と直角に振幅３．５ｍｍで往復運動させた６ＭＰａの純水高圧水流にて１回水流交絡させた後、１００℃の熱風で乾燥を行い、Ｓｉｎカーブ模様を有した再生セルロース連続長繊維不織布を得た。尚、ネットスピードは２０ｍ／ｍｉｎ．であった。得られた再生セルロース連続長繊維不織布は、目付が４０．４ｇ／ｍ２、厚みが０．２５ｍｍであった。得られた不織布の特性を以下の表１に、フェイスマスク用不織布としての評価結果を以下の表２に示す。
[Example 4]
The pulp was dissolved with an N-methylmorpholine-N-oxide (NMMO) solution (pulp 10 wt%, NMMO 55 wt%, water 45 wt%) to prepare a spinning dope. The spinning dope was continuously spun on the net by seven layers by a melt blow method to obtain a continuous cellulose continuous fiber web. The obtained cellulose continuous long fiber web was regenerated with dilute NMMO, and the regenerated cellulose continuous long fiber web obtained after washing with water was subjected to hydroentanglement treatment twice with a low-pressure water flow of 2 MPa on a conveyor net. The obtained sheet was entangled once with a 6 MPa pure water high-pressure water stream reciprocated at an amplitude of 3.5 mm perpendicular to the direction of travel of the web, and then dried with hot air at 100 ° C. to form a Sin curve pattern. A regenerated cellulose continuous long fiber nonwoven fabric was obtained. The net speed is 20 m / min. Met. The obtained regenerated cellulose continuous long fiber nonwoven fabric had a basis weight of 40.4 g / m 2 and a thickness of 0.25 mm. The characteristics of the obtained nonwoven fabric are shown in Table 1 below, and the evaluation results as a nonwoven fabric for face mask are shown in Table 2 below.
［実施例５］
旭化成せんい（株）製のベンベルグ（登録商標）短繊維（素材名キュプラ）１．４ｄｔｅｘ×３８ｍｍの綿を用いて、スパンレース製造設備を用いて４５ｇ／ｍ２のカードウエブを作製した。得られたカードウエブをコンベアーネット上にて２ＭＰａの低圧水流によって２回水流交絡処理を行った。得られたシートをウエブの進行方向と直角に４．４ｍｍ往復運動させた６ＭＰａの純水高圧水流にて１回水流交絡させた後、１００℃の熱風で乾燥を行い、Ｓｉｎカーブ模様を有した再生セルロース短繊維不織布を得た。尚、ネットスピードは１４ｍ／ｍｉｎ．であった。得られた再生セルロース短繊維不織布は、目付が４５．１ｇ／ｍ２、厚みが０．３８ｍｍであった。得られた不織布の特性を以下の表１に、フェイスマスク用不織布としての評価結果を以下の表２に示す。
[Example 5]
A card web of 45 g / m 2 was prepared using a spunlace manufacturing facility using 1.4 dtex × 38 mm cotton of Bemberg (registered trademark) short fiber (material name: cupra) manufactured by Asahi Kasei Fibers. The obtained card web was subjected to water flow entanglement treatment twice with a low-pressure water flow of 2 MPa on a conveyor net. The obtained sheet was entangled once with a 6 MPa pure water high-pressure water stream reciprocated 4.4 mm perpendicular to the direction of travel of the web, and then dried with hot air at 100 ° C. to have a Sin curve pattern. A regenerated cellulose short fiber nonwoven fabric was obtained. The net speed is 14 m / min. Met. The obtained regenerated cellulose short fiber nonwoven fabric had a basis weight of 45.1 g / m 2 and a thickness of 0.38 mm. The characteristics of the obtained nonwoven fabric are shown in Table 1 below, and the evaluation results as a nonwoven fabric for face mask are shown in Table 2 below.
［実施例６］
市販のリヨセル短繊維０．９ｄｔｅｘ×３５ｍｍの綿を用いたこと以外は実施例５と同様の条件にて再生セルロース短繊維不織布を得た。得られた再生セルロース短繊維不織布は、目付が４３．１ｇ／ｍ２、厚みが０．３５ｍｍであった。得られた不織布の特性を以下の表１に、フェイスマスク用不織布としての評価結果を以下の表２に示す。
[Example 6]
A regenerated cellulose short fiber nonwoven fabric was obtained under the same conditions as in Example 5 except that commercially available lyocell short fiber 0.9 dtex × 35 mm cotton was used. The obtained regenerated cellulose short fiber nonwoven fabric had a basis weight of 43.1 g / m 2 and a thickness of 0.35 mm. The characteristics of the obtained nonwoven fabric are shown in Table 1 below, and the evaluation results as a nonwoven fabric for face mask are shown in Table 2 below.
［実施例７］
旭化成せんい（株）製のベンベルグ（登録商標）短繊維（素材名キュプラ）１．４ｄｔｅｘ×３８ｍｍの綿を７０ｗｔ％、市販のリヨセル短繊維０．９ｄｔｅｘ×３５ｍｍの綿を３０ｗｔ％用いたこと以外は実施例５と同様の条件にて再生セルロース短繊維不織布を得た。得られた再生セルロース短繊維不織布は、目付が４４．５ｇ／ｍ２、厚みが０．４１ｍｍであった。得られた不織布の特性を表１に、フェイスマスク用不織布としての評価結果を表２に示す。
[Example 7]
Asahi Kasei Fibers Co., Ltd. used Bemberg (registered trademark) short fiber (material name cupra) 1.4 dtex x 38 mm cotton 70 wt%, commercially available lyocell short fiber 0.9 dtex x 35 mm cotton 30 wt% A regenerated cellulose short fiber nonwoven fabric was obtained under the same conditions as in Example 5. The obtained regenerated cellulose short fiber nonwoven fabric had a basis weight of 44.5 g / m 2 and a thickness of 0.41 mm. Table 1 shows the characteristics of the obtained nonwoven fabric, and Table 2 shows the evaluation results of the nonwoven fabric for face mask.
［実施例８］
旭化成せんい（株）製のベンベルグ（登録商標）短繊維（素材名キュプラ）１．４ｄｔｅｘ×３８ｍｍの綿を８０ｗｔ％、市販のポリエチレンテレフタレート製の綿１．７ｄｔｅｘ×５１ｍｍを２０ｗｔ％の割合で混ぜた綿を用いて、スパンレース製造設備を用いて３５ｇ／ｍ２のカードウエブを作製したこと以外は実施例５と同様の条件にてセルロース短繊維不織布を得た。得られたセルロース短繊維不織布は、目付が３４．７ｇ／ｍ２、厚みが０．３３ｍｍであった。得られた不織布の特性を以下の表１に、フェイスマスク用不織布としての評価結果を以下の表２に示す。
[Example 8]
Asahi Kasei Fibers Co., Ltd. Bemberg (registered trademark) short fiber (material name cupra) 1.4dtex x 38mm cotton 80wt%, commercially available polyethylene terephthalate cotton 1.7dtex x 51mm was mixed in a proportion of 20wt%. A cellulose short fiber nonwoven fabric was obtained under the same conditions as in Example 5 except that a spunlace manufacturing facility was used to produce a card web of 35 g / m 2 using cotton. The obtained cellulose short fiber nonwoven fabric had a basis weight of 34.7 g / m 2 and a thickness of 0.33 mm. The characteristics of the obtained nonwoven fabric are shown in Table 1 below, and the evaluation results as a nonwoven fabric for face mask are shown in Table 2 below.
［比較例１］
コットンリンターを銅アンモニア溶液で溶解し（コットンリンター１０ｗｔ％、アンモニア７ｗｔ％、銅３ｗｔ％）紡糸原液を準備した。紡糸原液を流下緊張下で連続してネット上に５層重ねで紡糸してセルロース連続長繊維ウエブを得た。得られたセルロース連続長繊維ウエブを希硫酸で再生し、水洗後得られた再生セルロース連続長繊維ウエブをコンベアーネット上にてウエブの進行方向と直角に振幅３．１ｍｍで往復運動させた３ＭＰａの低圧水流によって３回水流交絡処理を行った。水流交絡させた後、１００℃の熱風で乾燥を行い、Ｓｉｎカーブ模様を有した再生セルロース連続長繊維不織布を得た。尚、ネットスピードは２５ｍ／ｍｉｎ．であった。得られた再生セルロース連続長繊維不織布は、目付が３８．１ｇ／ｍ２、厚みが０．３２ｍｍであった。得られた不織布の特性を以下の表１に、フェイスマスク用不織布としての評価結果を以下の表２に示す。
[Comparative Example 1]
Cotton linter was dissolved with a copper ammonia solution (cotton linter 10 wt%, ammonia 7 wt%, copper 3 wt%) to prepare a spinning dope. The spinning stock solution was continuously spun under flowing tension and spun into five layers on a net to obtain a continuous cellulose continuous fiber web. The obtained cellulose continuous long fiber web was regenerated with dilute sulfuric acid, and the regenerated cellulose continuous long fiber web obtained after washing was reciprocated on the conveyor net at an amplitude of 3.1 mm perpendicular to the web traveling direction. The water entanglement treatment was performed three times by the low pressure water flow. After hydroentangled, drying was performed with hot air at 100 ° C. to obtain a regenerated cellulose continuous long fiber nonwoven fabric having a Sin curve pattern. The net speed is 25 m / min. Met. The obtained regenerated cellulose continuous long fiber nonwoven fabric had a basis weight of 38.1 g / m 2 and a thickness of 0.32 mm. The characteristics of the obtained nonwoven fabric are shown in Table 1 below, and the evaluation results as a nonwoven fabric for face mask are shown in Table 2 below.
［比較例２］
ネットスピードを１７ｍ／ｍｉｎ．にし、往復運動の振幅を２．９ｍｍにしたこと以外は比較例１と同様の条件にて再生セルロース連続長繊維不織布を得た。得られた再生セルロース連続長繊維不織布は、目付が５９．５ｇ／ｍ２、厚みが０．４０ｍｍであった。得られた不織布の特性を以下の表１に、フェイスマスク用不織布としての評価結果を以下の表２に示す。
[Comparative Example 2]
Net speed is 17m / min. A regenerated cellulose continuous long-fiber nonwoven fabric was obtained under the same conditions as in Comparative Example 1 except that the amplitude of the reciprocating motion was 2.9 mm. The obtained regenerated cellulose continuous long fiber nonwoven fabric had a basis weight of 59.5 g / m 2 and a thickness of 0.40 mm. The characteristics of the obtained nonwoven fabric are shown in Table 1 below, and the evaluation results as a nonwoven fabric for face mask are shown in Table 2 below.
［比較例３］
ネットスピードを２０ｍ／ｍｉｎ．にしたこと以外は比較例１と同様の条件にて再生セルロース連続長繊維不織布を得た。得られた再生セルロース連続長繊維不織布を２枚重ねてウエブの進行方向と直角に振幅８．０ｍｍで往復運動させた６ＭＰａの低圧水流にて１回水流交絡させた後、１００℃の熱風で乾燥を行い、Ｓｉｎカーブ模様を有した再生セルロース連続長繊維不織布を得た。尚、ネットスピードは５ｍ／ｍｉｎ．であった。得られた再生セルロース連続長繊維不織布は、目付が９８．１ｇ／ｍ２、厚みが０．４５ｍｍであった。得られた不織布の特性を以下の表１に、フェイスマスク用不織布としての評価結果を以下の表２に示す。
[Comparative Example 3]
Net speed is 20 m / min. A regenerated cellulose continuous long-fiber non-woven fabric was obtained under the same conditions as in Comparative Example 1 except for the above. The obtained regenerated cellulose continuous long-fiber nonwoven fabric was overlapped twice and entangled once with a 6 MPa low-pressure water flow reciprocated at an amplitude of 8.0 mm perpendicular to the direction of travel of the web, and then dried with hot air at 100 ° C. The regenerated cellulose continuous long fiber nonwoven fabric having the Sin curve pattern was obtained. The net speed is 5 m / min. Met. The obtained regenerated cellulose continuous long fiber nonwoven fabric had a basis weight of 98.1 g / m 2 and a thickness of 0.45 mm. The characteristics of the obtained nonwoven fabric are shown in Table 1 below, and the evaluation results as a nonwoven fabric for face mask are shown in Table 2 below.
［比較例４］
市販の再生セルロース繊維不織布（リヨセル製不織布）の特性測定と評価を行なった。目付が３６．９ｇ／ｍ２、厚みが０．２７ｍｍであった。得られた不織布の特性を以下の表１に、フェイスマスク用不織布としての評価結果を以下の表２に示す。
[Comparative Example 4]
Characteristic measurement and evaluation of a commercially available recycled cellulose fiber nonwoven fabric (Lyocell nonwoven fabric) were performed. The basis weight was 36.9 g / m 2 and the thickness was 0.27 mm. The characteristics of the obtained nonwoven fabric are shown in Table 1 below, and the evaluation results as a nonwoven fabric for face mask are shown in Table 2 below.
［比較例５］
市販の再生セルロース繊維不織布（レーヨン製不織布）の特性測定と評価を行なった。目付が６４．６ｇ／ｍ２、厚みが０．３８ｍｍであった。得られた不織布の特性を以下の表１に、フェイスマスク用不織布としての評価結果を以下の表２に示す。
[Comparative Example 5]
The measurement and evaluation of a commercially available recycled cellulose fiber nonwoven fabric (rayon nonwoven fabric) were performed. The basis weight was 64.6 g / m 2 and the thickness was 0.38 mm. The characteristics of the obtained nonwoven fabric are shown in Table 1 below, and the evaluation results as a nonwoven fabric for face mask are shown in Table 2 below.
［比較例６］
ネットスピードを３ｍ／ｍｉｎ．にし、往復運動の振幅を５．４ｍｍにしたこと以外は実施例５と同様の条件にて再生セルロース短繊維不織布を得た。得られた再生セルロース短繊維不織布は、目付が４５．７ｇ／ｍ２、厚みが０．３６ｍｍであった。得られた不織布の特性を以下の表１に、フェイスマスク用不織布としての評価結果を以下の表２に示す。
[Comparative Example 6]
Net speed 3m / min. A regenerated cellulose short fiber nonwoven fabric was obtained under the same conditions as in Example 5 except that the amplitude of the reciprocating motion was 5.4 mm. The obtained regenerated cellulose short fiber nonwoven fabric had a basis weight of 45.7 g / m 2 and a thickness of 0.36 mm. The characteristics of the obtained nonwoven fabric are shown in Table 1 below, and the evaluation results as a nonwoven fabric for face mask are shown in Table 2 below.
表２に示すとおり、本発明のフェイスマスク用不織布は、着用感及び薬液移行性に優れ、肌への低刺激性にも優れている。 As shown in Table 2, the non-woven fabric for face masks of the present invention is excellent in wearing feeling and chemical liquid transfer properties, and is excellent in low irritation to skin.
本発明のフェイスマスク用セルロース繊維不織布は、肌との密着性が高く、薬液を均一に肌へ移行することに優れ、浸透感を実感することができるフェイスマスク用不織布であり、産業上の利用価値は極めて大きい。 The cellulose fiber non-woven fabric for face mask of the present invention is a non-woven fabric for face mask that has high adhesiveness to the skin, is excellent in uniformly transferring a chemical solution to the skin, and can realize a sense of penetration. The value is extremely great.
Claims (5)
（１）Ｓｉｎカーブ模様を有しており、波長と振幅の比（波長／振幅）が１．５ｍｍ／ｍｍ以上１４．０ｍｍ／ｍｍ以下である；
（２）乾燥状態における地合指数が２４０以下の範囲である；及び
（３）湿潤状態における透明度が６０％以上である；
を有する、フェイスマスク用セルロース繊維不織布。 The following features:
(1) It has a Sin curve pattern, and the ratio of wavelength to amplitude (wavelength / amplitude) is 1.5 mm / mm or more and 14.0 mm / mm or less;
(2) The formation index in the dry state is in the range of 240 or less; and (3) The transparency in the wet state is 60% or more;
A cellulose fiber nonwoven fabric for face masks.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016034765A JP6734072B2 (en) | 2016-02-25 | 2016-02-25 | Cellulose fiber non-woven fabric for face mask |
| CN201720172303.0U CN206680682U (en) | 2016-02-25 | 2017-02-24 | Facial mask cellulose fibre non-woven fabrics and facial mask |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016034765A JP6734072B2 (en) | 2016-02-25 | 2016-02-25 | Cellulose fiber non-woven fabric for face mask |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2017150110A true JP2017150110A (en) | 2017-08-31 |
| JP6734072B2 JP6734072B2 (en) | 2020-08-05 |
Family
ID=59740493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2016034765A Active JP6734072B2 (en) | 2016-02-25 | 2016-02-25 | Cellulose fiber non-woven fabric for face mask |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6734072B2 (en) |
| CN (1) | CN206680682U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020513071A (en) * | 2017-04-03 | 2020-04-30 | レンツィング アクツィエンゲゼルシャフト | Optically transparent wet non-woven cellulose fiber fabric |
| KR20200105704A (en) | 2018-01-10 | 2020-09-08 | 오지 홀딩스 가부시키가이샤 | Sheet |
| JP2020143408A (en) * | 2019-03-08 | 2020-09-10 | ダイワボウホールディングス株式会社 | Nonwoven fabric for liquid-impregnated skin coating sheet and liquid-impregnated skin coating sheet |
| JPWO2020202899A1 (en) * | 2019-03-29 | 2020-10-08 | ||
| WO2020226181A1 (en) * | 2019-05-09 | 2020-11-12 | 旭化成株式会社 | Recycled cellulosic fiber nonwoven fabric, chemical impregnation sheet, and face mask |
| JP7477241B2 (en) | 2018-07-31 | 2024-05-01 | レンチング アクチエンゲゼルシャフト | Nonwoven fabrics, uses of nonwoven fabrics, and wipes, dryer sheets, and face masks containing nonwoven fabrics |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102352034B1 (en) * | 2018-06-29 | 2022-01-14 | 코오롱인더스트리 주식회사 | Non-woven Fiber aggregates containing Lyocell Fibers |
| JP2022061310A (en) * | 2020-10-06 | 2022-04-18 | 旭化成株式会社 | Nonwoven fabric |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006016601A1 (en) * | 2004-08-11 | 2006-02-16 | Daiwabo Co., Ltd. | Skin covering sheet for cosmetic preparation impregnation and process for producing the same, and face mask using said sheet |
| JP2006525440A (en) * | 2003-05-01 | 2006-11-09 | ジョンソン・アンド・ジョンソン・ゲーエムベーハー | Pattern sheet products |
| JP2011137279A (en) * | 2009-12-02 | 2011-07-14 | Daiwabo Holdings Co Ltd | Nonwoven fabric, production method therefor and wiping material |
| JP2015070968A (en) * | 2013-10-03 | 2015-04-16 | 旭化成せんい株式会社 | Nonwoven fabric for face mask |
| JP2015089977A (en) * | 2013-11-06 | 2015-05-11 | 旭化成せんい株式会社 | Nonwoven fabric using cellulose fiber |
-
2016
- 2016-02-25 JP JP2016034765A patent/JP6734072B2/en active Active
-
2017
- 2017-02-24 CN CN201720172303.0U patent/CN206680682U/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006525440A (en) * | 2003-05-01 | 2006-11-09 | ジョンソン・アンド・ジョンソン・ゲーエムベーハー | Pattern sheet products |
| US20080318004A1 (en) * | 2003-05-01 | 2008-12-25 | Andreas Ruhe | Patterned Sheet Products |
| WO2006016601A1 (en) * | 2004-08-11 | 2006-02-16 | Daiwabo Co., Ltd. | Skin covering sheet for cosmetic preparation impregnation and process for producing the same, and face mask using said sheet |
| JP2011137279A (en) * | 2009-12-02 | 2011-07-14 | Daiwabo Holdings Co Ltd | Nonwoven fabric, production method therefor and wiping material |
| JP2015070968A (en) * | 2013-10-03 | 2015-04-16 | 旭化成せんい株式会社 | Nonwoven fabric for face mask |
| JP2015089977A (en) * | 2013-11-06 | 2015-05-11 | 旭化成せんい株式会社 | Nonwoven fabric using cellulose fiber |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020513071A (en) * | 2017-04-03 | 2020-04-30 | レンツィング アクツィエンゲゼルシャフト | Optically transparent wet non-woven cellulose fiber fabric |
| KR20200105704A (en) | 2018-01-10 | 2020-09-08 | 오지 홀딩스 가부시키가이샤 | Sheet |
| JP7477241B2 (en) | 2018-07-31 | 2024-05-01 | レンチング アクチエンゲゼルシャフト | Nonwoven fabrics, uses of nonwoven fabrics, and wipes, dryer sheets, and face masks containing nonwoven fabrics |
| JP2020143408A (en) * | 2019-03-08 | 2020-09-10 | ダイワボウホールディングス株式会社 | Nonwoven fabric for liquid-impregnated skin coating sheet and liquid-impregnated skin coating sheet |
| JP7374405B2 (en) | 2019-03-08 | 2023-11-07 | 大和紡績株式会社 | Non-woven fabric for liquid-impregnated skin covering sheets and liquid-impregnated skin covering sheets |
| JPWO2020202899A1 (en) * | 2019-03-29 | 2020-10-08 | ||
| WO2020202899A1 (en) * | 2019-03-29 | 2020-10-08 | タピルス株式会社 | Melt-blown nonwoven fabric for liquid filter, layered body of said melt-blown nonwoven fabric, and liquid filter equipped with layered body |
| JP7352302B2 (en) | 2019-03-29 | 2023-09-28 | タピルス株式会社 | Melt-blown nonwoven fabric for liquid filters, laminates of the melt-blown nonwoven fabrics, and liquid filters comprising the laminates |
| WO2020226181A1 (en) * | 2019-05-09 | 2020-11-12 | 旭化成株式会社 | Recycled cellulosic fiber nonwoven fabric, chemical impregnation sheet, and face mask |
| JPWO2020226181A1 (en) * | 2019-05-09 | 2021-11-18 | 旭化成株式会社 | Regenerated cellulose fiber non-woven fabric, chemical impregnated sheet, and face mask |
| JP7101879B2 (en) | 2019-05-09 | 2022-07-15 | 旭化成株式会社 | Regenerated cellulose fiber non-woven fabric, chemical impregnated sheet, and face mask |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6734072B2 (en) | 2020-08-05 |
| CN206680682U (en) | 2017-11-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6734072B2 (en) | Cellulose fiber non-woven fabric for face mask | |
| JP3944526B2 (en) | Skin covering sheet for impregnating cosmetics, method for producing the same, and face mask using the same | |
| JP6385191B2 (en) | Chemical solution impregnation sheet and face mask using the same | |
| TW201542232A (en) | Skin masking sheet containing cosmetic material and method for manufacture thereof | |
| JP6005977B2 (en) | Sheet for makeup | |
| JP6267913B2 (en) | Non-woven fabric for face mask | |
| JP2009297535A (en) | Cosmetic base material and skin cleansing sheet using this | |
| JP5272130B2 (en) | Skin covering sheet for impregnating cosmetics, method for producing the same, and face mask using the same | |
| JP4471620B2 (en) | Cellulose fiber nonwoven fabric and nonwoven fabric product using the same | |
| JP2019201799A (en) | Face mask | |
| JP3741886B2 (en) | Ultrafine fiber generation possible fiber, ultrafine fiber generated from this, and fiber sheet using this ultrafine fiber | |
| JP6093487B2 (en) | Non-woven fabric for liquid-impregnated sheet, viscose rayon for liquid-impregnated sheet and non-woven fabric for liquid-impregnated sheet | |
| WO2018061947A1 (en) | Nonwoven fabric for gel mask | |
| JP4873836B2 (en) | Cosmetic base material and skin cleaning sheet using the same | |
| JP2018153632A (en) | Sheet for being impregnated with drug solution | |
| JPWO2016108285A1 (en) | Fiber assembly, liquid absorbent sheet using the same, and method for producing fiber assembly | |
| KR102490724B1 (en) | Regenerated cellulose-based fiber non-woven fabric, chemical-impregnated sheet and face mask | |
| JP3974889B2 (en) | Laminated nonwoven fabric for wiper, method for producing the same, and wet wiper | |
| JP3725716B2 (en) | Ultrafine fiber generation possible fiber, ultrafine fiber generated from this, and fiber sheet using this ultrafine fiber | |
| JP2016000701A (en) | Cellulose fiber nonwoven fabric for gel mask | |
| WO2022225056A1 (en) | Unwoven fabric including cellulose fibers | |
| JP6208549B2 (en) | Nonwoven fabric using cellulose fiber | |
| JP2018127744A (en) | Cellulosic fiber nonwoven fabric for face mask | |
| JP2005245752A (en) | Wiping cloth | |
| KR20190054934A (en) | Liquid-retaining non-woven fabric and face mask which includes said non-woven fabric |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A711 | Notification of change in applicant |
Free format text: JAPANESE INTERMEDIATE CODE: A712 Effective date: 20160405 |
|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20190115 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20191114 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20191126 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20200120 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20200623 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20200709 |
|
| R150 | Certificate of patent or registration of utility model |
Ref document number: 6734072 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |