JP6819032B2 - Acrylic fiber-containing woven knit - Google Patents
Acrylic fiber-containing woven knit Download PDFInfo
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- JP6819032B2 JP6819032B2 JP2015210290A JP2015210290A JP6819032B2 JP 6819032 B2 JP6819032 B2 JP 6819032B2 JP 2015210290 A JP2015210290 A JP 2015210290A JP 2015210290 A JP2015210290 A JP 2015210290A JP 6819032 B2 JP6819032 B2 JP 6819032B2
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本発明は速乾性に優れ、洗濯時の汚れ成分による再汚染が少なく、繰り返し洗濯後の寸法変化が少ない織編物に関する。 The present invention relates to a woven or knitted fabric having excellent quick-drying properties, less recontamination due to stain components during washing, and less dimensional change after repeated washing.
リネンサプライ製品は工業洗濯により高温での洗濯や蒸気による滅菌処理が行われる。また仕上げには高温のプレス加工を行うことから、これらの処理を繰り返すうちに製品が劣化するため、傷んだ製品の廃棄と新品への入れ替えを行う必要がある。更にホテルやレストラン、医療機関等で使用されるリネンサプライ製品は、傷みだけでなく汚れの付着した製品も廃棄される。
またリネンサプライ業者は製品を繰り返し使用するための耐久性とともに、洗濯や乾燥に要する時間や手間を省くことが可能な製品の要求もある。
Linen supply products are industrially washed at high temperatures and sterilized with steam. In addition, since high-temperature press working is performed for finishing, the product deteriorates as these processes are repeated, so it is necessary to dispose of the damaged product and replace it with a new one. Furthermore, linen supply products used in hotels, restaurants, medical institutions, etc. are discarded not only when they are damaged but also when they are dirty.
Linen suppliers also demand products that are durable enough to be used repeatedly and can save time and effort required for washing and drying.
これらの用途では木綿またはポリエステル繊維と木綿とから構成される生地が多く使用されている。木綿は肌触りが良く、吸水性が高く、シーツや枕カバー、タオル、テーブルクロス、ナプキン等のリネンサプライ製品に好適な素材である。ポリエステル繊維は強力が強く、取扱い性が容易で、寸法安定性に優れるといった特徴がある。また、木綿及びポリエステル繊維は生産量も多く、市中で安価に手配することが可能であり、生地生産時のコストメリットが大きい。 In these applications, cotton or fabrics composed of polyester fibers and cotton are often used. Cotton is soft to the touch and highly absorbent, making it a suitable material for linen supply products such as sheets, pillowcases, towels, tablecloths and napkins. Polyester fibers are strong, easy to handle, and have excellent dimensional stability. In addition, cotton and polyester fibers are produced in large quantities and can be arranged at low cost in the market, which has a great cost advantage during fabric production.
しかしながら、木綿は洗濯で収縮し、乾燥時間が長く、皺になりやすいといった欠点がある。また、木綿は繰り返し洗濯を行うとゴワゴワ感が生じ風合いが硬くなるといった欠点がある。ポリエステル繊維は高温での洗濯を繰り返すと、加水分解により繊維が劣化するといった欠点がある。更にポリエステル繊維を含む生地は、洗濯により脱落した汚れ成分が生地に再付着しやすく、繰り返し洗濯を行うと徐々に生地が黒ずんでくる（再汚染）といった欠点がある。 However, cotton has the disadvantages that it shrinks when washed, has a long drying time, and is prone to wrinkles. In addition, cotton has a drawback that when it is repeatedly washed, it gives a rugged feeling and the texture becomes hard. Polyester fibers have a drawback that the fibers deteriorate due to hydrolysis when they are repeatedly washed at a high temperature. Further, the fabric containing polyester fibers has a drawback that the stain components that have fallen off by washing are likely to reattach to the fabric, and the fabric gradually darkens (recontamination) after repeated washing.
前記欠点を解決するために、例えば、特許文献１には、ポリエステル繊維の耐湿熱性を向上させるために、カルボキシル末端基量を制御する方法が開示されている。
しかしながら、このポリエステル繊維は耐湿熱性が向上するものの、再汚染の防止には至っていない。
In order to solve the above drawbacks, for example, Patent Document 1 discloses a method of controlling the amount of carboxyl terminal groups in order to improve the moisture and heat resistance of the polyester fiber.
However, although this polyester fiber has improved moisture and heat resistance, it has not been able to prevent recontamination.
一方、特許文献２には、風合い面ではアクリル繊維を用いたパイルニット生地からなるシーツが開示されている。この生地は生地裏面に防水を目的としたポリウレタン樹脂フィルムのコーティングがされており、工業洗濯による高温での洗濯や蒸気による滅菌処理には耐えられないものである。 On the other hand, Patent Document 2 discloses sheets made of a pile knit fabric using acrylic fibers in terms of texture. The back surface of this fabric is coated with a polyurethane resin film for the purpose of waterproofing, and cannot withstand high-temperature washing by industrial washing and sterilization by steam.
本発明の目的は、従来技術における問題点を解決するものであり、速乾性に優れ、洗濯時の汚れ成分による再汚染が少なく、繰り返し洗濯後の寸法変化が少ない織編物を提供することにある。 An object of the present invention is to solve problems in the prior art, and to provide a woven or knitted fabric which is excellent in quick-drying property, has less recontamination due to stain components during washing, and has little dimensional change after repeated washing. ..
本発明の織編物は、アクリル繊維及び木綿を含む織編物であって、織編物に対するアクリル繊維の含有量が２０〜９０質量％、木綿の含有量が１０〜８０質量％であり、経方向及び緯方向のそれぞれの寸法変化率が１０％以下である織編物。 The woven or knitted fabric of the present invention is a woven or knitted fabric containing acrylic fibers and cotton, wherein the content of acrylic fibers in the woven and knitted fabric is 20 to 90% by mass, the content of cotton is 10 to 80% by mass, and the warp direction and A woven or knitted fabric in which the rate of change in each dimension in the weft direction is 10% or less.
本発明の織編物は、ポリエステル繊維の含有量が１０％以下であることが好ましい。 The woven and knitted fabric of the present invention preferably has a polyester fiber content of 10% or less.
本発明の織編物は、再汚染性が４級以上であることが好ましい。 The woven and knitted fabric of the present invention preferably has a recontamination property of grade 4 or higher.
本発明の織編物は、木綿の含有量が５０〜８０質量％であることが好ましい。 The woven and knitted fabric of the present invention preferably has a cotton content of 50 to 80% by mass.
本発明の織編物は、拡散性残留水分率が３０％以下であることが好ましい。 The woven and knitted fabric of the present invention preferably has a diffusible residual moisture content of 30% or less.
本発明の織編物は、前記アクリル繊維が、アクリロニトリル共重合体とセルロースアセテートとの複合繊維であることが好ましい。 In the woven and knitted fabric of the present invention, it is preferable that the acrylic fiber is a composite fiber of an acrylonitrile copolymer and cellulose acetate.
本発明の織編物は、前記アクリル繊維の単繊維繊度が１ｄｔｅｘ〜３．３ｄｔｅｘであることが好ましい。 In the woven and knitted fabric of the present invention, it is preferable that the single fiber fineness of the acrylic fiber is 1 dtex to 3.3 dtex.
本発明の織編物は、黄色ブドウ球菌、肺炎桿菌、モラクセラ菌に対する殺菌活性値が０以上であることが好ましい。 The woven and knitted fabric of the present invention preferably has a bactericidal activity value of 0 or more against Staphylococcus aureus, Klebsiella pneumoniae, and Moraxella.
本発明の織編物は、アンモニアに対する消臭率が７０％以上であることが好ましい。 The woven and knitted fabric of the present invention preferably has a deodorizing rate of 70% or more with respect to ammonia.
本発明の織編物は、紡績糸から構成される織編物であって、前記紡績糸は、アクリル繊維、木綿の１つ以上を含有し、紡績糸の糸番手が綿番手で１５〜３０番であることが好ましい。 The woven and knitted fabric of the present invention is a woven and knitted fabric composed of spun yarns, the spun yarns containing one or more of acrylic fibers and cotton, and the yarn counts of the spun yarns are cotton counts 15 to 30. It is preferable to have.
本発明のシーツは、前記織編物からなるシーツ。 The sheets of the present invention are sheets made of the woven and knitted fabric.
本発明のタオルは、前記織編物からなるタオル。 The towel of the present invention is a towel made of the above-mentioned woven and knitted fabric.
本発明のテーブルクロスは、前記織編物からなるテーブルクロス。 The tablecloth of the present invention is a tablecloth made of the woven or knitted fabric.
本発明の織編物は、工業洗濯での高温での洗濯やプレス加工による劣化が少なく、繰り返し洗濯に耐久性があり、速乾性に優れているため乾燥時間を短縮することが可能であり、洗濯時の汚れ成分の再付着（再汚染）が少ないといった、従来製品が持つ欠点を補うことが出来る。 The woven and knitted fabric of the present invention is less likely to deteriorate due to high-temperature washing and press working in industrial washing, is durable for repeated washing, and has excellent quick-drying properties, so that the drying time can be shortened. It is possible to make up for the drawbacks of conventional products, such as less reattachment (recontamination) of dirt components.
以下、本発明について詳細に説明する。
本発明の織編物は、アクリル繊維と木綿を含む織編物であって、織編物に対するアクリル繊維の含有量が２０〜９０質量％及び木綿の含有量が１０〜８０質量％であり、経方向及び緯方向のそれぞれの寸法変化率が１０％以下である織編物である。
Hereinafter, the present invention will be described in detail.
The woven or knitted fabric of the present invention is a woven or knitted fabric containing acrylic fibers and cotton, wherein the content of acrylic fibers in the woven and knitted fabric is 20 to 90% by mass and the content of cotton is 10 to 80% by mass, and the warp direction and It is a woven or knitted fabric in which the rate of change in each dimension in the weft direction is 10% or less.
織編物に対するアクリル繊維の含有量が２０質量％以上であれば、寸法変化率が小さくなり易く、良好な吸水速乾性と再汚染防止性が得られる。９０質量％以下であれば、木綿を含むことができるので、吸水性及び風合いが良好となる。
この観点より、織編物に対するアクリル繊維の含有量は、２５〜７０質量％が好ましく、３０〜５０質量％がより好ましい。
When the content of the acrylic fiber in the woven or knitted material is 20% by mass or more, the dimensional change rate tends to be small, and good water absorption and quick drying and recontamination prevention can be obtained. If it is 90% by mass or less, cotton can be contained, so that the water absorption and the texture are good.
From this viewpoint, the content of the acrylic fiber in the woven or knitted fabric is preferably 25 to 70% by mass, more preferably 30 to 50% by mass.
織編物に対する木綿の含有量が１０質量％以上であれば、吸水性及び風合いが良好となるので好ましく、８０質量％以下であれば、アクリル繊維を含有でき、再汚染防止性が得られるので好ましい。この観点から、織編物に対する木綿の含有量は、３０質量％以上がより好ましく、５０質量％以上がさらに好ましい。 If the content of cotton in the woven or knitted fabric is 10% by mass or more, the water absorption and texture are good, and if it is 80% by mass or less, acrylic fibers can be contained and recontamination prevention can be obtained, which is preferable. .. From this point of view, the content of cotton in the woven or knitted fabric is more preferably 30% by mass or more, further preferably 50% by mass or more.
アクリル繊維は、アクリルロニトリル共重合体を５０質量％以上含むことが好ましい。アクリロニトリル共重合体の含有率が５０質量％以上であることで、紡糸安定性や繊維物性の低下を招くことがない。前記アクリルロニトリル共重合体を５０質量％以上含む繊維とは、アクリロニトリル共重合体のみからなるアクリル繊維であっても良く、アクリロニトリル共重合体とそれ以外の共重合体とからなる複合繊維であっても良い。
アクリル繊維に占めるアクリロニトリル共重合体の含有量は、繊維物性の低下を少なくする点から６０質量％以上がより好ましく、８０質量％以上がさらに好ましい。
The acrylic fiber preferably contains 50% by mass or more of the acrylic lonitrile copolymer. When the content of the acrylonitrile copolymer is 50% by mass or more, the spinning stability and the physical characteristics of the fiber are not deteriorated. The fiber containing 50% by mass or more of the acrylonitrile copolymer may be an acrylic fiber composed only of the acrylonitrile copolymer, or a composite fiber composed of the acrylonitrile copolymer and other copolymers. You may.
The content of the acrylonitrile copolymer in the acrylic fiber is more preferably 60% by mass or more, and further preferably 80% by mass or more from the viewpoint of reducing the deterioration of the fiber physical characteristics.
アクリル繊維に含むアクリルニトリル共重体以外のものは、セルロースアセテート、メタクリル酸メチル、ポリウレタン、塩化ビニル等からなる共重合体が挙げられ、アクリロニトリル共重合体と同じ溶剤に溶解可能な共重合体が挙げられる。 Examples of the copolymers other than the acrylic nitrile copolymer contained in the acrylic fiber include copolymers composed of cellulose acetate, methyl methacrylate, polyurethane, vinyl chloride, etc., and copolymers that can be dissolved in the same solvent as the acrylonitrile copolymer. Be done.
また必要に応じて顔料、染料などの着色剤、消臭剤、抗菌剤、抗かび剤などの機能剤、制電剤、平滑剤、増摩剤などの油剤を付与することができる。 Further, if necessary, coloring agents such as pigments and dyes, functional agents such as deodorants, antibacterial agents and antifungal agents, and oil agents such as antistatic agents, smoothing agents and brighteners can be added.
本発明におけるアクリロニトリル共重合体はアクリロニトリルおよびこれと共重合可能な不飽和単量体とからなる。このような不飽和単量体として、アクリル酸、メタクリル酸、もしくはこれらのアルキルエステル類、酢酸ビニル、アクリルアミド、塩化ビニル、塩化ビニリデン、さらに目的によってはビニルベンゼンスルホン酸ソーダ、メタリルスルホン酸ソーダ、アリルスルホン酸ソーダ、アクリルアミドメチルプロパンスルホン酸ソーダ、ソディウムパラスルホフェニールメタリルエーテル等のイオン性不飽和単量体を用いることが出来る。 The acrylonitrile copolymer in the present invention comprises acrylonitrile and an unsaturated monomer copolymerizable therewith. As such unsaturated monomers, acrylic acid, methacrylic acid, or alkyl esters thereof, vinyl acetate, acrylamide, vinyl chloride, vinylidene chloride, and depending on the purpose, vinylbenzene sulfonic acid sodium, metallyl sulfonic acid sodium, and the like. Ionic unsaturated monomers such as sodium allyl sulfonate, sodium acrylamide methyl propane sulfonate, and sodium parasulfophenyl metallic ether can be used.
織編物に対するポリエステル繊維の含有量が１０質量％以下であることが好ましい。
ポリエステル繊維の含有量が１０質量％以下であれば、再汚染が低減でき易くなる。前記含有量は、５質量％以下がより好ましく、３質量％以下がさらに好ましい。
The content of polyester fibers in the woven or knitted fabric is preferably 10% by mass or less.
When the content of the polyester fiber is 10% by mass or less, recontamination can be easily reduced. The content is more preferably 5% by mass or less, further preferably 3% by mass or less.
本発明の織編物は再汚染性が４級以上である。４級以上であることで洗濯時の汚れ成分の再付着による変色を防止できる。
尚、再汚染性に影響を与える因子は明確ではないが、生地と汚れ成分とのイオン性であるとか、電位差も関与していると考えられる。このため、ゼータ電位測定システムを用いてアクリル繊維と木綿繊維からなる生地、ポリエステル繊維と木綿繊維からなる生地、木綿繊維１００％からなる生地の３種類の生地の表面ゼータ電位を測定したところ、以下の結果を得た。
The woven and knitted fabric of the present invention has a recontamination property of grade 4 or higher. By having a grade 4 or higher, discoloration due to reattachment of dirt components during washing can be prevented.
Although the factors that affect the recontamination property are not clear, it is considered that the ionicity between the fabric and the dirt component and the potential difference are also involved. Therefore, the surface zeta potentials of three types of fabrics, that is, a fabric made of acrylic fiber and cotton fiber, a fabric made of polyester fiber and cotton fiber, and a fabric made of 100% cotton fiber were measured using a zeta potential measurement system. I got the result of.
アクリル繊維と木綿繊維からなる生地の表面ゼータ電位：−１８．２２ｍＶ
ポリエステル繊維と木綿繊維からなる生地の表面ゼータ電位：−１０．１２ｍＶ
木綿繊維１００％からなる生地の表面ゼータ電位：−９．３７ｍＶ
Surface zeta potential of fabric consisting of acrylic fiber and cotton fiber: -18.22 mV
Surface zeta potential of fabric consisting of polyester fiber and cotton fiber: 10.12 mV
Surface zeta potential of fabric made of 100% cotton fiber: -9.37 mV
すなわち、着色汚れを引き起こす汚れ成分がマイナス（−）側の電位を有している場合は、アクリル繊維を含む生地の方がよりマイナス側に位置しており、汚れ成分と反発しあうため洗濯時の再汚染が少ないと推定している。 That is, when the stain component that causes colored stains has a negative (-) side potential, the fabric containing the acrylic fiber is located on the more negative side and repels the stain component during washing. It is estimated that there is little recontamination.
本発明の織編物は、拡散性残留水分率が３０％以下であることが好ましい。拡散性残留水分率が３０％以下であることで、洗濯後の乾燥時間を短くすることが出来る。前記観点から拡散性残留水分率が１０％以下であることがより好ましい。 The woven and knitted fabric of the present invention preferably has a diffusible residual moisture content of 30% or less. When the diffusible residual moisture content is 30% or less, the drying time after washing can be shortened. From the above viewpoint, it is more preferable that the diffusible residual water content is 10% or less.
本発明の織編物は、前記アクリル繊維が、アクリロニトリル共重合体とセルロースアセテートの複合繊維であることが好ましい。アクリロニトリル共重合体とセルロースアセテートの複合繊維であることで、吸水速乾性や再汚染防止性に加えて、酢酸やイソ吉草酸、ノネナールに対する消臭性を付与することが出来る。
複合繊維におけるセルロースアセテートの含有率は、１０〜５０質量％が好ましく、２０〜４０質量％がより好ましい。
In the woven and knitted fabric of the present invention, it is preferable that the acrylic fiber is a composite fiber of an acrylonitrile copolymer and cellulose acetate. Since it is a composite fiber of an acrylonitrile copolymer and cellulose acetate, it can impart deodorant properties to acetic acid, isovaleric acid, and nonenal in addition to water absorption and quick-drying properties and anti-recontamination properties.
The content of cellulose acetate in the composite fiber is preferably 10 to 50% by mass, more preferably 20 to 40% by mass.
本発明の織編物は、前記アクリル繊維の単繊維繊度が１ｄｔｅｘ〜３．３ｄｔｅｘであることが好ましい。単繊維繊度が前記範囲にあることで製品風合いが硬くなりすぎず、また紡績工程通過性も良好とできる。 In the woven and knitted fabric of the present invention, it is preferable that the single fiber fineness of the acrylic fiber is 1 dtex to 3.3 dtex. When the single fiber fineness is within the above range, the texture of the product does not become too hard, and the passability in the spinning process can be improved.
本発明の織編物は、黄色ブドウ球菌、肺炎桿菌、モラクセラ菌に対する殺菌活性値が０以上であることが好ましい。
本発明の織物をシーツ、タオル、テーブルクロスなどに使用した際に、これらの菌の繁殖を防ぎ、清潔に保つことができる。
The woven and knitted fabric of the present invention preferably has a bactericidal activity value of 0 or more against Staphylococcus aureus, Klebsiella pneumoniae, and Moraxella.
When the woven fabric of the present invention is used for sheets, towels, tablecloths, etc., it is possible to prevent the growth of these bacteria and keep them clean.
これらの菌に対する制菌性を得るためには、例えば繊維製造段階で抗菌剤を０．０５〜２質量％練り込んだ繊維を使用すれば良い。本発明に使用する抗菌剤としては、無機系（抗菌性ゼオライト）、金属系（銀スルホネート）、有機シリコン第４級アンモニウム塩系、第４級アンモニウム塩系、グアニジン系（グルコン酸ヘキシジウム）、フェノール系、脂肪酸エステル系、銅化合物系、フェニルアミド系、天然物系（キトサン）等の抗菌剤を用いることが出来る。また、制菌性能の耐久性の観点からは、繰り返し洗濯１０回後でも殺菌活性値が０以上であることが好ましい。 In order to obtain bacteriostatic properties against these bacteria, for example, fibers in which 0.05 to 2% by mass of an antibacterial agent is kneaded at the fiber manufacturing stage may be used. Examples of the antibacterial agent used in the present invention include inorganic (antibacterial zeolite), metal (silver sulfonate), organic silicon quaternary ammonium salt, quaternary ammonium salt, guanidine (hexidium gluconate), and phenol. Antibacterial agents such as type, fatty acid ester type, copper compound type, phenylamide type, and natural product type (chitosan) can be used. Further, from the viewpoint of durability of antibacterial performance, it is preferable that the bactericidal activity value is 0 or more even after 10 times of repeated washing.
本発明の織編物は、アンモニアに対する消臭率が７０％以上であることが好ましい。アンモニアに対する消臭性を得るためには、例えばＴｉ、Ｚｎ、Ａｌ、Ｓｎ、Ｓｉ、Ｆｅ、Ｃａ、Ｍｇ、Ｂａ、Ｚｒ等の金属酸化物、これら金属および／または金属酸化物を含む無機化合物を主成分とする微粉末、および水に難溶性の固体酸微粒子等を繊維中に０．５〜５質量％練り込み紡糸すれば良い。 The woven and knitted fabric of the present invention preferably has a deodorizing rate of 70% or more with respect to ammonia. In order to obtain deodorant properties against ammonia, for example, metal oxides such as Ti, Zn, Al, Sn, Si, Fe, Ca, Mg, Ba, Zr, and inorganic compounds containing these metals and / or metal oxides are used. Fine powder as a main component, solid acid fine particles that are poorly soluble in water, and the like may be kneaded into fibers in an amount of 0.5 to 5% by mass and spun.
本発明の織編物を構成する糸は、紡績糸から構成されていることが好ましい。前記紡績糸は、アクリル繊維を２０〜１００質量％含有することが好ましい。本発明では前記紡績糸を織物の場合は経糸または緯糸、あるいは経糸と緯糸の両方に使用する。パイル織物やパイルニットの場合は前記紡績糸をパイル糸として使用することが好ましい。
紡績糸中の前記アクリル繊維の含有率が２０質量％以上であることで、良好な吸水速乾性と再汚染防止性が得られる。上記観点から、前記繊維の混率は３０〜６０質量％が好ましい。
The yarn constituting the woven or knitted fabric of the present invention is preferably composed of spun yarn. The spun yarn preferably contains 20 to 100% by mass of acrylic fibers. In the present invention, the spun yarn is used as a warp or a weft in the case of a woven fabric, or both a warp and a weft. In the case of pile woven fabrics and pile knits, it is preferable to use the spun yarn as the pile yarn.
When the content of the acrylic fiber in the spun yarn is 20% by mass or more, good water absorption and quick-drying property and recontamination prevention property can be obtained. From the above viewpoint, the mixing ratio of the fibers is preferably 30 to 60% by mass.
本発明の織編物を構成する糸は、綿番手で１５〜３０番であることが好ましい。紡績糸の番手を前記範囲とすることで布帛に適度な厚みと強力が付与され、繰り返し洗濯後の寸法変化を少なくすることが出来る。 The yarn constituting the woven or knitted fabric of the present invention preferably has a cotton count of 15 to 30. By setting the count of the spun yarn in the above range, an appropriate thickness and strength are given to the fabric, and it is possible to reduce the dimensional change after repeated washing.
（再汚染性の評価方法）
１．トリポリリン酸ソーダとラウリルベンゼンスルホン酸ナトリウム各々５ｇ／Ｌずつを蒸留水に溶かして洗剤濃縮液を調製する。表１に示す合成汚染源を０．７５ｇ／Ｌ（洗剤液に対して０．０７５％）少量ずつ濃縮液で分散し、再汚染液を調整する。
２．ラウンドオメーター試験機を用い、試験瓶に上記再汚染液２００ｍｌとスチールボール１０個を入れ、４０±２℃に調熱する。これに５ｃｍ×５ｃｍの試験片４枚を入れて密閉し、１時間処理する。
３．試験片を取り出し流水すすぎを行った後、ラウンドオメーターで４０℃の温水１００ｍｌで１０分間処理する。再び試験片を取り出し流水すすぎを行った後、ラウンドオメーターで２５℃の水１００ｍｌで１０分間処理する。試験片を取り出し流水すすぎを２回繰り返した後、タンブラーで乾燥する。
４．汚染用グレースケールにより各試験片の級数を判定し、その平均を再汚染性の値とする。
(Evaluation method of recontamination)
1. 1. A detergent concentrate is prepared by dissolving 5 g / L each of sodium tripolyphosphate and sodium laurylbenzene sulfonate in distilled water. The synthetic contaminants shown in Table 1 are dispersed in a concentrated solution little by little at 0.75 g / L (0.075% with respect to the detergent solution) to prepare a recontaminated solution.
2. 2. Using a round ometer tester, put 200 ml of the above recontamination solution and 10 steel balls in a test bottle and adjust the heat to 40 ± 2 ° C. Four 5 cm x 5 cm test pieces are placed therein, sealed, and processed for 1 hour.
3. 3. After taking out the test piece and rinsing it with running water, it is treated with 100 ml of warm water at 40 ° C. for 10 minutes with a round ometer. After taking out the test piece again and rinsing with running water, it is treated with 100 ml of water at 25 ° C. for 10 minutes with a round ometer. The test piece is taken out, rinsed with running water twice, and then dried with a tumbler.
4. The series of each test piece is judged by the pollution gray scale, and the average is used as the recontamination value.
（拡散性残留水分率の測定方法）
１．２０℃×６５％ＲＨ下の雰囲気中で１２時間以上静置した後、１０ｃｍ×１０ｃｍの試験片の質量（Ｗ０）を測定する。
２．試験片に０．３ｇの水を滴下し、２０℃×６５％ＲＨ下の雰囲気中で６０分間静置後、試験片の質量（Ｗ１）を測定する。
３．残留水分率を下記式より算出する。
残留水分率（％）＝（Ｗ１−Ｗ０）÷０．３×１００
４．５回測定し、その平均値を拡散性残留水分率とする。
(Measurement method of diffusible residual water content)
1. After allowing to stand in an atmosphere of 20 ° C. × 65% RH for 12 hours or more, the mass (W0) of the test piece of 10 cm × 10 cm is measured.
2. 2. 0.3 g of water is added dropwise to the test piece, and the test piece is allowed to stand in an atmosphere of 20 ° C. × 65% RH for 60 minutes, and then the mass (W1) of the test piece is measured.
3. 3. The residual moisture content is calculated from the following formula.
Residual water content (%) = (W1-W0) ÷ 0.3 × 100
Measure 4.5 times, and use the average value as the diffusible residual water content.
（寸法変化率の測定方法）
ＪＩＳ Ｌ １０９６の寸法変化試験方法により、洗濯処理方法はＦ−２法の温水温度を８０℃とした以外は同様の方法で行い、乾燥方法は高温タンブル乾燥を行った。前記処理を１００回繰り返した前後の試験片サイズから寸法変化率を測定した。
３点の試料を測定し、その平均値を寸法変化率とした。
(Measurement method of dimensional change rate)
According to the dimensional change test method of JIS L 1096, the washing treatment method was the same as that of the F-2 method except that the hot water temperature was set to 80 ° C., and the drying method was high temperature tumble drying. The dimensional change rate was measured from the size of the test piece before and after repeating the above treatment 100 times.
Three samples were measured, and the average value was taken as the dimensional change rate.
（風合い変化）
前記寸法変化率を測定した試験布と、洗濯処理前のオリジナル生地との風合いを、１０名の被験者により評価した。
尚、判定は以下により行った。
○：洗濯を繰り返しても風合い低下が少ないと判定した被験者が７名以上
△：洗濯を繰り返しても風合い低下が少ないと判定した被験者が５〜６名
×：洗濯を繰り返しても風合い低下が少ないと判定した被験者が４名以下
(Change in texture)
The texture of the test cloth on which the dimensional change rate was measured and the original cloth before the washing treatment was evaluated by 10 subjects.
The judgment was made as follows.
◯: 7 or more subjects judged that the texture deterioration was small even after repeated washing △: 5 to 6 subjects judged that the texture deterioration was small even after repeated washing ×: The texture deterioration was small even after repeated washing 4 or less subjects were judged to be
（殺菌活性値の測定方法）
（一社）繊維評価技術協議会のＳＥＫ制菌加工マーク（一般用途）の認証基準に準じて試験を行った。試験方法はＪＩＳ Ｌ １９０２の菌液吸収法で行い、培養後の生菌数測定法は混釈平板培養法（コロニー法）を用いた。
(Measurement method of bactericidal activity value)
(One company) The test was conducted according to the certification standard of the SEK antibacterial processing mark (general use) of the Textile Evaluation Technology Council. The test method was the bacterial solution absorption method of JIS L 1902, and the method for measuring the viable cell count after culturing was the pour-mixed plate culture method (colony method).
（アンモニア消臭率の測定方法）
（一社）繊維評価技術協議会のＳＥＫ消臭加工マークの認証基準に準じて試験を行った。
(Measurement method of ammonia deodorant rate)
(One company) The test was conducted according to the certification standard of the SEK deodorant processing mark of the Textile Evaluation Technology Council.
（単繊維繊度）
ＪＩＳ Ｌ １０１５の繊度（振動法）により測定した。測定は５０本行いその平均値とした。
(Single fiber fineness)
It was measured by the fineness (vibration method) of JIS L 1015. 50 measurements were performed and the average value was used.
（紡績糸番手）
ＪＩＳ Ｌ １０９５の番手により測定した。測定は２０回行いその平均値とした。
(Spun yarn count)
It was measured by the count of JIS L 1095. The measurement was performed 20 times and used as the average value.
（実施例１）
アクリロニトリル９３質量％、酢酸ビニル７質量％からなるアクリロニトリル系共重合体をジメチルアセトアミド（以下ＤＭＡｃという）に溶解し、固形分濃度２５質量％の紡糸原液を得た。前記紡糸原液を湿式紡糸法により丸形状の紡糸ノズルから、ＤＭＡｃの濃度が５５質量％、温度が４０℃の水溶液である凝固浴に吐出した。引き続き沸水中で溶剤を洗浄した後、延伸倍率５倍で延伸し、油剤を付着させ、１５０℃の乾熱ローラーで乾燥し、クリンプ付与の仕上げ処理を施したのち、繊維長が３８ｍｍになるように切断し、単繊維繊度が１．０ｄｔｅｘのアクリル繊維を得た。
前記アクリル繊維７０質量％と、木綿繊維を３０質量％の割合で混合し、リング紡績機で紡績し、綿番手が２０／１の紡績糸を得た。
次に、レピア織機を使用して、前記紡績糸を緯糸に、経糸に木綿繊維１００％からなる綿番手２４／１の紡績糸を使用し、経糸密度６０本／インチ、緯糸密度６０本／インチの平織生地を作製した。目付は１３１ｇ／ｍ２であった。
得られた生地を常法により綿の下晒処理を行った後、上述の評価方法により再汚染性、拡散性残留水分率、寸法変化率の各項目を評価した結果を表２に示す。
(Example 1)
An acrylonitrile-based copolymer composed of 93% by mass of acrylonitrile and 7% by mass of vinyl acetate was dissolved in dimethylacetamide (hereinafter referred to as DMAc) to obtain a spinning stock solution having a solid content concentration of 25% by mass. The spinning stock solution was discharged from a round spinning nozzle by a wet spinning method into a coagulation bath which is an aqueous solution having a DMAc concentration of 55% by mass and a temperature of 40 ° C. After washing the solvent in boiling water, the fiber is stretched at a draw ratio of 5 times, an oil agent is attached, the fiber is dried with a dry heat roller at 150 ° C., and a crimping finish treatment is applied so that the fiber length becomes 38 mm. To obtain an acrylic fiber having a single fiber fineness of 1.0 dtex.
The acrylic fiber 70% by mass and the cotton fiber were mixed at a ratio of 30% by mass and spun with a ring spinning machine to obtain a spun yarn having a cotton count of 20/1.
Next, using a rapier loom, the spun yarn is used as the weft, and the spun yarn having a cotton count of 24/1 made of 100% cotton fiber is used as the warp, and the warp density is 60 yarns / inch and the weft yarn density is 60 yarns / inch. A plain weave fabric was produced. The basis weight was 131 g / m 2 .
Table 2 shows the results of evaluating each item of recontamination property, diffusible residual moisture content, and dimensional change rate by the above-mentioned evaluation method after subjecting the obtained fabric to cotton underexposure treatment by a conventional method.
（実施例２）
アクリロニトリル９３質量％、酢酸ビニル７質量％からなるアクリロニトリル系共重合体をＤＭＡｃに溶解し、固形分濃度２５質量％の紡糸原液１を得た。これとは別に水酸基の酢酸化度が７４％以上、９２％未満のセルロースアセテート（株式会社ダイセル製）をＤＭＡｃに溶解し、固形分濃度２０質量％の紡糸原液２を得た。更に消臭性微粒子として商品名「ミズカナイト」（水澤化学工業株式会社製）をＤＭＡｃ溶液中にビーズミルを用いて均一分散し、消臭性微粒子の濃度が２０質量％のマスターバッチを得た。
前記紡糸原液１と、紡糸原液２と、前記マスターバッチを、各々の固形分濃度がアクリロニトリル系共重合体６７質量％、セルロースアセテート２９質量％、消臭性微粒子４質量％となるように、ホモミキサーにて十分に撹拌混合し紡糸原液を調製した。
このようにして得た紡糸原液を湿式紡糸法により丸形状の紡糸ノズルから、ＤＭＡｃ濃度が４０質量％、温度が４０℃の水溶液である凝固浴に吐出した。引き続き沸水中で溶剤を洗浄した後、延伸倍率５倍で延伸し、油剤を付着させ、１５０℃の乾熱ローラーで乾燥し、クリンプ付与の仕上げ処理を施したのち、繊維長３８ｍｍに切断し、単繊維繊度が１．７ｄｔｅｘのアクリル系複合繊維を得た。
前記アクリル系複合繊維７０質量％と、木綿繊維を３０質量％の割合で混合し、リング紡績機で紡績し、綿番手が２０／１の紡績糸を得た。
前記紡績糸を緯糸に使用した他は実施例１と同様にして平織生地を作製した。目付は１３１ｇ／ｍ２であった。
得られた生地を常法により綿の下晒処理を行った後、上述の評価方法により再汚染性、拡散性残留水分率、寸法変化率の各項目を評価した結果を表２に示す。
また、前記生地のアンモニアに対する消臭性を測定した結果を表３に示す。
(Example 2)
An acrylonitrile-based copolymer composed of 93% by mass of acrylonitrile and 7% by mass of vinyl acetate was dissolved in DMAc to obtain a spinning stock solution 1 having a solid content concentration of 25% by mass. Separately from this, cellulose acetate (manufactured by Daicel Corporation) having a hydroxyl group acetic acidification degree of 74% or more and less than 92% was dissolved in DMAc to obtain a spinning stock solution 2 having a solid content concentration of 20% by mass. Further, the trade name "Mizukanite" (manufactured by Mizusawa Industrial Chemicals Co., Ltd.) was uniformly dispersed as deodorant fine particles in a DMAc solution using a bead mill to obtain a master batch having a concentration of 20% by mass of deodorant fine particles.
The spinning stock solution 1, the spinning stock solution 2, and the master batch are homogenized so that the solid content concentration of each is 67% by mass of the acrylonitrile copolymer, 29% by mass of cellulose acetate, and 4% by mass of deodorant fine particles. The spinning stock solution was prepared by thoroughly stirring and mixing with a mixer.
The spinning stock solution thus obtained was discharged from a round spinning nozzle by a wet spinning method into a coagulation bath which is an aqueous solution having a DMAc concentration of 40% by mass and a temperature of 40 ° C. After washing the solvent in boiling water, it was stretched at a draw ratio of 5 times, an oil agent was attached, dried with a dry heat roller at 150 ° C., subjected to a crimping finish treatment, and then cut to a fiber length of 38 mm. An acrylic composite fiber having a single fiber fineness of 1.7 dtex was obtained.
70% by mass of the acrylic composite fiber and 30% by mass of cotton fiber were mixed and spun with a ring spinning machine to obtain a spun yarn having a cotton count of 20/1.
A plain weave fabric was produced in the same manner as in Example 1 except that the spun yarn was used as the weft. The basis weight was 131 g / m 2 .
Table 2 shows the results of evaluating each item of recontamination property, diffusible residual moisture content, and dimensional change rate by the above-mentioned evaluation method after subjecting the obtained fabric to cotton underexposure treatment by a conventional method.
Table 3 shows the results of measuring the deodorant property of the dough with respect to ammonia.
（比較例１）
単繊維繊度が１．４ｄｔｅｘ、繊維長が３８ｍｍのポリエステル繊維７０質量％と、木綿繊維３０質量％からなる綿番手が２０／１の紡績糸を緯糸に使用した他は実施例１と同様にして平織生地を作製した。目付は１３１ｇ／ｍ２であった。
得られた生地を常法により綿の下晒処理を行った後、上述の評価方法により再汚染性、拡散性残留水分率、寸法変化率の各項目を評価した結果を表２に示す。
(Comparative Example 1)
Similar to Example 1 except that a spun yarn having a cotton count of 20/1, which consists of 70% by mass of polyester fiber having a single fiber fineness of 1.4 dtex and a fiber length of 38 mm and 30% by mass of cotton fiber, was used as the weft. A plain weave fabric was produced. The basis weight was 131 g / m 2 .
Table 2 shows the results of evaluating each item of recontamination property, diffusible residual moisture content, and dimensional change rate by the above-mentioned evaluation method after subjecting the obtained fabric to cotton underexposure treatment by a conventional method.
（比較例２）
木綿繊維１００％からなる綿番手が２０／１の紡績糸を緯糸に使用した他は実施例１と同様にして平織生地を作製した。目付は１３１ｇ／ｍ２であった。
得られた生地を常法により綿の下晒処理を行った後、上述の評価方法により再汚染性、拡散性残留水分率、寸法変化率の各項目を評価した結果を表２に示す。
(Comparative Example 2)
A plain weave fabric was produced in the same manner as in Example 1 except that a spun yarn having a cotton count of 20/1 made of 100% cotton fiber was used as the weft. The basis weight was 131 g / m 2 .
Table 2 shows the results of evaluating each item of recontamination property, diffusible residual moisture content, and dimensional change rate by the above-mentioned evaluation method after subjecting the obtained fabric to cotton underexposure treatment by a conventional method.
（実施例３）
抗菌剤として商品名「ゼオミック」（株式会社シナネンゼオミック社製）をＤＭＡｃ溶液中にビーズミルを用いて均一分散し、消臭性微粒子の濃度が２０質量％のマスターバッチを得た。このマスターバッチを実施例１の紡糸原液１に、アクリロニトリル系共重合体と抗菌剤の固形分比率が９８．５：１．５となるように、ホモミキサーにて十分に撹拌混合し紡糸原液を調製した。
このようにして得た紡糸原液を、実施例１と同様の方法で紡糸し、単繊維繊度が１．０ｄｔｅｘ、繊維長３８ｍｍのアクリル繊維を得た。
前記アクリル繊維７０質量％と、木綿繊維を３０質量％の割合で混合し、リング紡績機で紡績し、綿番手が２０／１の紡績糸を得た。
タオル織機を使用して、前記紡績糸を上糸（パイル糸）に、下糸に木綿繊維１００質量％からなる綿番手が３０／２の紡績糸、緯糸に木綿繊維が１００質量％からなる綿番手が２０／１の紡績糸を使用し、経糸密度２９．５本／インチ、緯糸密度３１本／インチのタオル生地を作製した。
得られた生地を常法により綿の下晒処理を行った後、上述の評価方法により再汚染性、拡散性残留水分率、寸法変化率の各項目を評価した結果を表２に示す。
また、前記生地の抗菌性を測定した結果を表４に示す。
(Example 3)
As an antibacterial agent, the trade name "Zeomic" (manufactured by Sinanen Zeomic Co., Ltd.) was uniformly dispersed in a DMAc solution using a bead mill to obtain a masterbatch having a concentration of deodorant fine particles of 20% by mass. This masterbatch is sufficiently stirred and mixed with the spinning stock solution 1 of Example 1 with a homomixer so that the solid content ratio of the acrylonitrile copolymer and the antibacterial agent is 98.5: 1.5, and the spinning stock solution is mixed. Prepared.
The spinning stock solution thus obtained was spun in the same manner as in Example 1 to obtain acrylic fibers having a single fiber fineness of 1.0 dtex and a fiber length of 38 mm.
The acrylic fiber 70% by mass and the cotton fiber were mixed at a ratio of 30% by mass and spun with a ring spinning machine to obtain a spun yarn having a cotton count of 20/1.
Using a towel weaving machine, the spun yarn is used as the upper yarn (pile yarn), the bobbin yarn is the spun yarn having a cotton count of 30/2 consisting of 100% by mass of cotton fiber, and the weft is made of cotton consisting of 100% by mass of cotton fiber. Using spun yarn having a count of 20/1, a towel cloth having a warp yarn density of 29.5 yarns / inch and a weft yarn density of 31 yarns / inch was produced.
Table 2 shows the results of evaluating each item of recontamination property, diffusible residual moisture content, and dimensional change rate by the above-mentioned evaluation method after subjecting the obtained fabric to cotton underexposure treatment by a conventional method.
Table 4 shows the results of measuring the antibacterial properties of the dough.
（比較例３）
上糸を木綿繊維１００％からなる綿番手が２０／１とした以外は実施例３と同様にしてタオル生地を作製した。
得られた生地を常法により綿の下晒処理を行った後、上述の評価方法により再汚染性、拡散性残留水分率、寸法変化率の各項目を評価した結果を表２に示す。
(Comparative Example 3)
A towel cloth was produced in the same manner as in Example 3 except that the needle thread was set to 20/1 with a cotton count made of 100% cotton fiber.
Table 2 shows the results of evaluating each item of recontamination property, diffusible residual moisture content, and dimensional change rate by the above-mentioned evaluation method after subjecting the obtained fabric to cotton underexposure treatment by a conventional method.
本発明のアクリル布帛は繰り返し洗濯における汚れ成分による再汚染が少なく、寸法変化が少ない、リネンサプライ製品等に有用な生地を提供する。
The acrylic fabric of the present invention provides a fabric useful for linen supply products and the like, which has less recontamination due to stain components in repeated washing and less dimensional change.
Claims (12)
A woven or knitted fabric composed of spun yarn containing acrylic fiber and cotton, the single yarn count of the spun yarn is 15 to 30 in cotton count, and the content of acrylic fiber in the woven or knitted fabric is 20 to 50% by mass. A towel made of a woven or knitted material having a cotton content of 50 to 80% by mass and a dimensional change rate of 10% or less in each of the warp and weft directions.
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| JP7067714B2 (en) * | 2018-02-09 | 2022-05-16 | グンゼ株式会社 | Manufacturing method of fabric made from spun yarn containing cotton fiber |
| JP2021017667A (en) * | 2019-07-19 | 2021-02-15 | 宏進株式会社 | Blended yarn, pile fabric, method of manufacturing blended yarn and method of manufacturing pile fabric |
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| JPS59116447A (en) * | 1982-12-24 | 1984-07-05 | 東レ株式会社 | Cotton-acrylic yarn blended knitted fabric |
| JPS62141086U (en) * | 1986-02-26 | 1987-09-05 | ||
| JPH0516301A (en) * | 1991-07-10 | 1993-01-26 | Kuraray Plast Kk | Waterproof sheet |
| JPH0681237A (en) * | 1992-07-17 | 1994-03-22 | Kanebo Ltd | Porous acrylic blended yarn for towel |
| JP2898563B2 (en) * | 1995-01-18 | 1999-06-02 | 鐘淵化学工業 株式会社 | Flame retardant method for combustible fibers |
| JP3692612B2 (en) * | 1996-05-15 | 2005-09-07 | 東洋紡績株式会社 | Pile fabric |
| JP2002235281A (en) * | 2001-02-05 | 2002-08-23 | Asahi Kasei Corp | Fabric having bacteriostatic property and method for producing the same |
| JP6108171B2 (en) * | 2013-08-01 | 2017-04-05 | 三菱レイヨン株式会社 | Acrylic composite fiber having antibacterial and deodorant properties and deodorant property, and spun yarn and woven / knitted fabric containing the same |
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