JP3141054U - Biodegradable fabric filter media - Google Patents
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Abstract
【課題】 コーヒー、紅茶、緑茶、烏龍茶等の嗜好性飲料を抽出する濾過材の使用後の廃棄処分問題と嗜好性飲料を抽出する濾過材の抽出性及び微粉末の漏洩防止を考案することにある。
【解決手段】 生分解性の織物からなり、経糸または緯糸のいずれか一方が主成分としてポリ乳酸系の生分解性重合体を含む１５ｄｔｅｘ以上のモノフィラメント、他方が竹繊維から成る紡績糸またはポリ乳酸系の生分解性重合体を含む１５ｄｔｅｘ以上のモノフィラメントと竹繊維から成る１００ｄｔｅｘ以上の紡績糸で構成された織物から成る濾過材により、課題を解決する。
【選択図】図１PROBLEM TO BE SOLVED: To devise a disposal problem after using a filter medium for extracting a favorite beverage such as coffee, black tea, green tea, oolong tea, etc., an extractability of the filter medium for extracting a favorite beverage, and prevention of leakage of fine powder. is there.
SOLUTION: A spun yarn or polylactic acid comprising a biodegradable woven fabric, wherein either a warp or a weft is a monofilament of 15 dtex or more containing a polylactic acid-based biodegradable polymer as a main component, and the other is made of bamboo fiber. The problem is solved by a filter medium comprising a woven fabric composed of a spun yarn of 100 dtex or more comprising a monofilament of 15 dtex or more containing a biodegradable polymer of the system and bamboo fibers.
[Selection] Figure 1
Description
本考案は、生分解性織物の濾過材に関するものであって、更に詳しく述べるならばコーヒー、紅茶、緑茶、烏龍茶等の嗜好性飲料をお湯、または水で抽出に使用される生分解性抽出容器に使用されるバッグの織物シートで、生分解性を有し、しかもバッグの外観が独特の光沢を呈すると共に濾過性及び形状保持性に優れるものである。 The present invention relates to a biodegradable textile filter material, and more specifically, a biodegradable extraction container used for extracting a favorite beverage such as coffee, tea, green tea, oolong tea with hot water or water. The fabric sheet of the bag used in the present invention has biodegradability, and the bag appearance has a unique gloss and is excellent in filterability and shape retention.
従来、コーヒー、紅茶、緑茶、烏龍茶等の嗜好性飲料をお湯、または水で抽出するために使用する抽出袋状体にはナイロンフィラメント、及びポリエステルフィラメント等のような合成繊維の織物、又は不織布、或は紙から成るバッグが用いられてきた。
前記合成繊維から成る袋状体はお茶等を抽出後、家庭ゴミとして排出されてきた。ところが、このようなバッグに用いる合成繊維は、それ自体に生分解性がないために、これを埋め立て処理、若しくは焼却後埋め立て処理せざるを得ず、これが近年、問題となっているゴミ増加の一因となっている。Conventionally, the extraction bag-like body used for extracting a favorite beverage such as coffee, black tea, green tea, oolong tea with hot water or water is a nylon filament, a woven fabric of a synthetic fiber such as a polyester filament, or a non-woven fabric, Or bags made of paper have been used.
Bags made of synthetic fibers have been discharged as household waste after extracting tea and the like. However, since synthetic fibers used in such bags are not biodegradable themselves, they must be landfilled or landfilled after incineration. It is a factor.
一方近年、緑茶、紅茶等を織物や紙または不織布等のバッグに充填し、これにお湯をそそいで調製する飲用法が急速に普及している。お茶の葉の乾燥した粉末はお湯を注ぐと膨潤してバッグの目を潜り難くなるので、従来バッグの素材には例えば、ナイロン紗等割合に織目が粗い生地が使用されていることが多かった。しかし、お茶の粉末中に含まれる微粉末はバッグの目を通って漏れ出すため、お茶の中に微粉末が含まれ苦味が強く、また舌に接触した感じもよくない等の問題があった。 On the other hand, in recent years, a drinking method in which green tea, black tea or the like is filled in a woven fabric, paper or non-woven fabric bag and then prepared by pouring hot water into the bag is rapidly spreading. The dry powder of tea leaves swells when hot water is poured, making it difficult for the bag's eyes to hide. For this reason, fabrics with a coarse texture such as nylon cocoons are often used as conventional bag materials. It was. However, since the fine powder contained in the tea powder leaks through the eyes of the bag, there was a problem that the fine powder contained in the tea had a strong bitter taste and the touch of the tongue was not good. .
また、最近試みられる様になったいわゆる煎茶の水出し法は、粉茶と葉茶が適度に混じり合ったお茶に常温の水或いは冷水を注いでお茶を抽出させる方法である。バッグの中に封入されている乾燥したお茶の葉の粉末に水を注いだ場合、お湯に較べて膨潤に時間がかかりまたその度合いも低下するので、その間に微粉末がバッグから漏れ出し易く、微粉末による苦味及び舌に接触した感じを悪くする等の問題点が指摘されている。
などの以上のような問題が残されている。In addition, the so-called sencha draining method that has recently been attempted is a method of extracting tea by pouring normal temperature water or cold water into tea in which powdered tea and leaf tea are appropriately mixed. When water is poured into the dry tea leaf powder enclosed in the bag, it takes longer to swell and less severe than hot water. Problems such as worsening the bitterness due to the fine powder and the feeling of touching the tongue have been pointed out.
The above problems remain.
本考案は、生分解性織物の濾過材に関するものであって、更に詳しく述べるならばコーヒー、紅茶、緑茶、烏龍茶等の嗜好性飲料をお湯、または水で抽出に使用される生分解性抽出容器に使用されるバッグの織物シートで、生分解性を有し、しかもバッグの外観が独特の光沢を呈すると共に濾過性及び形状保持性に優れるものである。
以下、本考案を詳細に説明する。The present invention relates to a biodegradable textile filter material, and more specifically, a biodegradable extraction container used for extracting a favorite beverage such as coffee, tea, green tea, oolong tea with hot water or water. The fabric sheet of the bag used in the present invention has biodegradability, and the bag appearance has a unique gloss and is excellent in filterability and shape retention.
Hereinafter, the present invention will be described in detail.
本考案では、市販のコーヒー、紅茶、緑茶、烏龍茶等の嗜好性飲料の抽出フィルター、バッグの使用状態から次のような問題点を解決することに努めたものである。その問題点としては、▲１▼従来使用されているフィルター、バッグの濾過材の素材はナイロン、ポリエステル、ポリプロピレン等の合成繊維が多く、それ自体に生分解性がないために、これを埋め立て処理、若しくは焼却後埋め立て処理せざるを得なくゴミ増加の問題となっている。▲２▼次に従来バッグの素材には例えば、ナイロン紗等割合に織目が粗い生地が使用されていることが多かった。しかし、お茶の粉末中に含まれる微粉末はバッグの目を通って漏れ出すため、お茶の中に微粉末が含まれ苦味が強く、また舌に接触した感じもよくない等の問題があった。▲３▼煎茶の水出し法は、粉茶と葉茶が適度に混じり合ったお茶に常温の水或いは冷水を注いでお茶を抽出させる方法である。バッグの中に封入されている乾燥したお茶の葉の粉末に水を注いだ場合、お湯に較べて膨潤に時間がかかりまたその度合いも低下するので、その間に微粉末がバッグから漏れ出し易く、微粉末による苦味及び舌に接触した感じを悪くする等の問題点が指摘されている。本考案は、これらの問題点の解決できるよう鋭意研究を重ねた。 In the present invention, the present inventors have sought to solve the following problems from the use state of extraction filters and bags of palatable beverages such as commercially available coffee, black tea, green tea and oolong tea. The problems are as follows: (1) Conventionally used filters and bag filter materials are made of nylon, polyester, polypropylene, and other synthetic fibers, which are not biodegradable. Or, landfilling after incineration is unavoidable, resulting in an increase in garbage. (2) Next, as a material of conventional bags, for example, a cloth having a coarse texture in a ratio of nylon wrinkles is often used. However, since the fine powder contained in the tea powder leaks through the eyes of the bag, there was a problem that the fine powder contained in the tea had a strong bitter taste and the touch of the tongue was not good. . (3) The method of draining sencha is a method of extracting tea by pouring normal temperature water or cold water into tea in which powdered tea and leaf tea are appropriately mixed. When water is poured into the dried tea leaf powder enclosed in the bag, it takes longer to swell compared to hot water and the degree thereof is reduced, so the fine powder easily leaks out of the bag during that time, Problems such as worsening the bitterness due to the fine powder and the feeling of touching the tongue have been pointed out. The present invention has been intensively studied to solve these problems.
上記で説明した▲１▼から▲３▼の問題を解決する手段としては、織物の縦糸、緯糸に生分解性のポリ乳酸系重合体を主成分とした繊維と竹繊維の紡績糸、を各種組み合わせと織物構成によりこれらの課題を克服することができた。 As means for solving the problems (1) to (3) described above, various kinds of warp yarns of fabrics, spun yarns of bamboo fibers and fibers mainly composed of biodegradable polylactic acid polymer are used as wefts. Combinations and fabric configurations could overcome these challenges.
本考案の濾過材は、生分解性の織物からなり、経糸または緯糸のいずれか一方が主成分としてポリ乳酸系の生分解性重合体を含む１５ｄｔｅｘ以上のモノフィラメント、他方が竹繊維から成る１００ｄｔｅｘ以上の紡績糸またはポリ乳酸系の生分解性重合体を含む１５ｄｔｅｘ以上のモノフィラメントと竹繊維から成る１００ｄｔｅｘ以上の紡績糸で構成された織物から成る特徴とするものである。 The filter material of the present invention is made of a biodegradable fabric, and either a warp or a weft is a main component of 15 dtex or more monofilament containing a polylactic acid-based biodegradable polymer, and the other is made of bamboo fiber and more than 100 dtex. Or a woven fabric composed of a spun yarn of 100 dtex or more made of bamboo fiber and a monofilament of 15 dtex or more containing a polylactic acid-based biodegradable polymer.
前記織物の下記式により表わされるカバーファクター値Ｋ：
Ｋ＝（Ｎｘ（Ａ）１／２／Ｔ）＋（Ｍ１ｘ（Ｂ１）１／２／Ｓ１＋Ｍ２ｘ（Ｂ２）１／２／Ｓ２）
〔但し、上式中、Ｎは経糸密度（本／１０ｃｍ）を表し、Ｍ１、Ｍ２は緯系密度（本／１０ｃｍ）を表し、Ａは経糸の繊度（ｄｔｅｘ）を表しＢ１、Ｂ２は緯糸の繊度（ｄｔｅｘ）を表し、Ｔは経糸の比重を表し、Ｓ１、Ｓ２は緯糸の比重を表す。〕
が、１６００〜６４００であることが好ましい。Cover factor value K represented by the following formula of the fabric:
K = (Nx (A) 1/2 / T) + (M 1 x (B 1 ) 1/2 / S 1 + M 2 x (B 2 ) 1/2 / S 2 )
[In the above formula, N represents the warp density (lines / 10 cm), M 1 and M 2 represent the weft density (lines / 10 cm), A represents the warp fineness (dtex), B 1 , B 2 represents the fineness (dtex) of the weft, T represents the specific gravity of the warp, and S 1 and S 2 represent the specific gravity of the weft. ]
Is preferably 1600 to 6400.
また、竹繊維の紡績糸の撚り密度は４００回／ｍ以下が好ましい。 The twist density of the spun yarn of bamboo fiber is preferably 400 times / m or less.
本考案は、経糸または緯糸のいずれか一方に生分解性のポリ乳酸系重合体のモノフィラメントを使用し、他方に竹繊維から成る紡績糸又は生分解性ポリ乳酸系重合体のモノフィラメントと竹繊維から成る紡績糸を使用した生分解性織物の濾過材である。その結果、織物を構成する素材のすべてが生分解性であり、使用後は焼却せず埋め立て処理が可能となり手間と廃棄物処理コスト軽減に繋がる。 The present invention uses a biodegradable polylactic acid polymer monofilament for either warp or weft and, on the other hand, a spun yarn made of bamboo fiber or a biodegradable polylactic acid polymer monofilament and bamboo fiber. It is a filter material of a biodegradable fabric using the spun yarn. As a result, all the materials constituting the woven fabric are biodegradable and can be landfilled without being incinerated after use, leading to labor and waste disposal cost reduction.
又、従来バッグの素材には例えば、ナイロン紗等割合に織目が粗い生地が使用されていることが多く、お茶の粉末中に含まれる微粉末はバッグの目を通って漏れ出すため、お茶の中に微粉末が含まれ苦味が強く、また舌に接触した感じもよくなかったが、織物構成を１５ｄｔｅｘ以上のモノフィラメントと竹繊維の１００ｄｔｅｘ以上ｎ紡績糸を経糸、緯糸に使用し、カバーファクター値Ｋを１６００〜６４００に規制することにより、お茶の中にバッグの目をすり抜ける微粉末がへり、苦味が弱く舌の触感も良好となる。 In addition, for example, a material having a coarse texture such as nylon cocoon is often used as a material for conventional bags, and fine powder contained in tea powder leaks through the eyes of the bag. Although it contained fine powder and had a strong bitter taste, it did not feel that it touched the tongue, but the fabric was made of monofilaments of 15 dtex or more and bamboo fibers of 100 dtex or more of n spun yarn for warp and weft. By regulating the value K to 1600-6400, the fine powder that slips through the eyes of the bag falls in the tea, the bitterness is weak, and the touch of the tongue is also good.
更に、本考案の生分解性織物は、竹繊維から成る紡績糸を使用しているため、竹繊維の独特の光沢を呈し、物品に高級感を与えるため商品価値を高める効果がある。 Furthermore, since the biodegradable fabric of the present invention uses spun yarn made of bamboo fibers, it exhibits the unique luster of bamboo fibers and has the effect of increasing the commercial value to give the article a high-class feeling.
以下、本考案を実施するために基づいて詳細に説明する。 Hereinafter, the present invention will be described in detail based on the present invention.
本考案に用いられるポリ乳酸重合体とは、乳酸又はその２量体ラクチドをモノマーとして重合したものであって、この重合体は、光学異性体Ｄ体及びＬ体の各々のホモポリマーであってもよく、これらの共重合体であってもよく、或は、これらの混合体であってもよい。 The polylactic acid polymer used in the present invention is obtained by polymerizing lactic acid or its dimer lactide as a monomer, and this polymer is a homopolymer of each of the optical isomers D and L. Or a copolymer thereof, or a mixture thereof.
また、本考案に用いられる竹繊維は、天然抗菌性を有する短繊維で、これを紡績糸にしたのち織物の縦糸または緯糸に使用する。好ましくは緯糸としての使用が、製織加工性の点から良い。 The bamboo fiber used in the present invention is a short fiber having natural antibacterial properties, which is used as a warp or weft of a woven fabric after being spun. Use as a weft is preferable from the viewpoint of weaving workability.
本考案の織物の構造も特に限定せず濾過性を有する織物は広範囲な組織を有するものが使用可能であるが、本発明のバッグは主として緑茶、紅茶等の乾燥した粉末を封入して使用され、これらのお茶の粉末はお湯を注ぐと水分を吸収して急速に膨潤するため、織目が粗な平織の布が適している。 The structure of the woven fabric of the present invention is not particularly limited, and those having filterability can be used as the woven fabric having filterability. However, the bag of the present invention is mainly used by enclosing a dry powder such as green tea or black tea. These tea powders absorb water when hot water is poured and swell rapidly, so a plain weave cloth with a coarse texture is suitable.
バッグの織物を構成する経糸または緯糸のいずれか一方は、モノフィラメントである必要があり、その太さは特に限定しないが１５ｄｔｅｘ以上が好ましい。いずれか一方にモノフィラメントを使用するのはバッグの形状保持性及び抽出性を考慮したためである。 Either one of the warp or the weft constituting the woven fabric of the bag needs to be a monofilament, and the thickness is not particularly limited, but is preferably 15 dtex or more. The reason why the monofilament is used for either one is that the shape retaining property and extractability of the bag are taken into consideration.
また、経糸または緯糸にモノフィラメントを使用した場合、他方の緯糸または経糸には竹繊維の紡績糸またはモノフィラメントと竹繊維の紡績糸を使用する必要がある。紡績糸全体のｄｔｅｘ及び個々の繊維の太さは特に限定せず、広範囲の紡績糸が使用可能であるが、紡績糸全体として１００ｄｔｅｘ以上が好ましい。 When a monofilament is used for the warp or weft, it is necessary to use a spun yarn of bamboo fiber or a spun yarn of monofilament and bamboo fiber for the other weft or warp. The dtex of the entire spun yarn and the thickness of each fiber are not particularly limited, and a wide range of spun yarn can be used, but the total spun yarn is preferably 100 dtex or more.
これはバッグにお茶の葉の粉末を封入してお湯を注いで抽出する時、抽出性を高め均一な濃度のお茶を得るためにはバッグの中でお茶の葉と充分な量のお湯が混合された状態に保持されることが好ましく、そのためにはバッグの中にお湯が充分入った状態でその形状が保持されている必要がある。このため経糸または緯糸のモノフィラメントは１５ｄｔｅｘ以上、竹繊維の紡績糸全体の太さが１００ｄｔｅｘ以上であることが好ましい。ここで、モノフィラメントの太さが１５ｄｔｅｘより細く、竹繊維の紡績糸の太さが１００ｄｔｅｘより細くなると、抽出時いわゆるバッグの腰がやや弱くなって、バッグを充分に膨らんだ状態に保持出来ず、抽出速度がやや低下し、得られたお茶等の濃度も不均一になる傾向がみられるからである。 This is because when tea leaves powder is sealed in a bag and extracted by pouring hot water, tea leaves and a sufficient amount of hot water are mixed in the bag to improve the extractability and obtain a uniform concentration of tea. It is preferable that the shape of the bag is maintained, and for that purpose, the shape of the bag needs to be maintained with sufficient hot water. For this reason, the warp or weft monofilament is preferably 15 dtex or more, and the overall thickness of the bamboo fiber spun yarn is preferably 100 dtex or more. Here, when the thickness of the monofilament is thinner than 15 dtex and the thickness of the spun yarn of bamboo fiber is thinner than 100 dtex, the so-called bag waist becomes slightly weak at the time of extraction, and the bag cannot be kept in a sufficiently swollen state. This is because the extraction rate is slightly reduced and the concentration of the obtained tea or the like tends to be non-uniform.
また、本考案のバッグの紡績糸の撚糸密度は特に限定せず、すなわち撚りが強いもの或いは撚りが弱いものも使用可能であるが、撚りが強過ぎると抽出時の微粉末が漏洩し易い傾向が見られるため、撚糸密度は４００回／ｍ以下が好ましい。 In addition, the twist density of the spun yarn of the bag of the present invention is not particularly limited, that is, a twisted or weakly twisted one can be used, but if the twist is too strong, the fine powder at the time of extraction tends to leak Therefore, the twisted yarn density is preferably 400 times / m or less.
更に本考案の生分解性織物の濾過材のシート、バッグにおいて竹繊維の紡績糸は、経糸または緯糸として使用することが必要で、好ましくは緯糸として使用することが適している。竹繊維の紡績糸を使用することにより、織物は全体として竹繊維の独特の光沢を呈することにある。これは後述の実施例１で使用した織物の顕微鏡写真より分かる様に、外観上竹繊維の紡績糸が占める比率からくるものと考えられる。 Furthermore, bamboo fiber spun yarns in the biodegradable textile filter sheets and bags of the present invention are required to be used as warp yarns or weft yarns, and are preferably used as weft yarns. By using bamboo fiber spun yarns, the fabric as a whole has the unique luster of bamboo fiber. As can be seen from the micrograph of the fabric used in Example 1 described later, this is considered to come from the ratio of the spun yarn of bamboo fiber in appearance.
本考案の嗜好性飲料抽出用バッグに使用する生分解性織物の、経糸または緯糸のいずれか一方がモノフィラメントであり、他方は竹繊維の紡績糸又はモノフィラメントと竹繊維の紡績糸の併用する必要がある。経糸または緯糸のどちらをモノフィラメントとすることも可能であるが、織物の性質及び得られたバッグの形状保持性を考慮して、一般には機械的性質が優れたモノフィラメントを経糸とすることが好ましい。また、モノフィラメントの太さは１５ｄｔｅｘ以上が好ましいが、バッグの濾過性及び抽出時の形状保持性更には経済性の観点より２０〜３５ｄｔｅｘ程度の太さが適正である。 Either the warp or the weft of the biodegradable fabric used in the bag for extracting a preference beverage of the present invention is a monofilament, and the other must be a combination of a spun yarn of bamboo fiber or a spun yarn of monofilament and bamboo fiber. is there. Either warp or weft can be monofilament, but it is generally preferable to use a monofilament having excellent mechanical properties in consideration of the properties of the fabric and the shape retention of the obtained bag. The thickness of the monofilament is preferably 15 dtex or more, but a thickness of about 20 to 35 dtex is appropriate from the viewpoints of bag filterability, shape retention during extraction, and economic efficiency.
竹繊維の紡績糸も経糸または緯糸のいずれにも使用可能であるが、前記の所論より一般に緯糸に使用され、その太さは個々の繊維の太さの合計が１００ｄｔｅｘ以上であることが好ましい。
本考案の織物のカバーファクター値Ｋ：
Ｋ＝（Ｎｘ（Ａ）１／２Ｔ）＋（Ｍ１ｘ（Ｂ１）１／２／Ｓ１＋Ｍ２ｘ（Ｂ２）１／２／Ｓ２）
〔但し、上式中、Ｎは経糸密度（本／１０ｃｍ）を表し、Ｍ１、Ｍ２は緯系密度（本／１０ｃｍ）を表し、Ａは経糸の繊度（ｄｔｅｘ）を表し、Ｂ１、Ｂ２は緯糸の繊度（ｄｔｅｘ）を表し、Ｔは経糸の比重を表し、Ｓ１、Ｓ２は緯糸の比重を表す。〕
織物のカバーファクタ値Ｋが１６００未満であると、抽出の際の濾過漏れが大きくなることがあり、またカバーファクタ値Ｋが６４００を超えると、抽出の際に目づまりを生ずることがあるため、１６００〜６４００であることが好ましい。Bamboo fiber spun yarn can also be used for either warp or weft, but it is generally used for weft from the above discussion, and the total thickness of individual fibers is preferably 100 dtex or more.
Cover factor value K of the fabric of the present invention:
K = (Nx (A) 1/2 T) + (M 1 x (B 1 ) 1/2 / S 1 + M 2 x (B 2 ) 1/2 / S 2 )
[In the above formula, N represents the warp density (lines / 10 cm), M 1 and M 2 represent the weft density (lines / 10 cm), A represents the warp fineness (dtex), B 1 , B 2 represents the fineness (dtex) of the weft, T represents the specific gravity of the warp, and S 1 and S 2 represent the specific gravity of the weft. ]
When the cover factor value K of the woven fabric is less than 1600, filtration leakage during extraction may increase, and when the cover factor value K exceeds 6400, clogging may occur during extraction. It is preferably ˜6400.
以下、本考案の実施例を挙げて本考案を更に具体的に説明する。Hereinafter, the present invention will be described more specifically with reference to examples of the present invention.
（実施例１）として、ポリ−Ｌ−乳酸繊維（２６ｄｔｅｘモノフィラメント、比重１．２４）を経糸に用いて、経糸密度４６５本／１０ｃｍ、緯糸はポリ−Ｌ−乳酸繊維（２６ｄｔｅｘモノフィラメント、比重１．２４）と竹繊維の紡績糸（１６６．７ｄｔｅｘ紡績糸、比重０．８）、それぞれの緯糸密度１４６本／１０ｃｍ（カバーファクター値Ｋ＝４６００）の平織物を製織し、精練仕上げセットをした。この織物を１３０ｃｍ幅のロールロール状にスリットしたものに超音波法によりカットシールを施して、タテ６５ｍｍｘヨコ４２ｍｍのヒラ袋体を作成し、本考案の抽出バッグを得た。
また、その繊維形状を示すため、図１に図面に代わる顕微鏡写真を（４８倍）を示した。この写真から、粗に配置された経糸と縦糸の間に、緯糸の紡績糸が分散して広い面積をカバーしていることがわかる。As Example 1, poly-L-lactic acid fiber (26 dtex monofilament, specific gravity 1.24) was used as the warp, and the warp density was 465 pieces / 10 cm, and the weft was poly-L-lactic acid fiber (26 dtex monofilament, specific gravity 1. 24) and bamboo fiber spun yarn (166.7 dtex spun yarn, specific gravity 0.8), and a weft density of 146 yarns / 10 cm (cover factor value K = 4600) were woven and scoured and finished. This fabric was slit into a roll roll having a width of 130 cm and cut and sealed by an ultrasonic method to prepare a flat bag body of 65 mm in length and 42 mm in width, and an extraction bag of the present invention was obtained.
Moreover, in order to show the fiber shape, the microscope picture (48 times) which replaces drawing at FIG. 1 was shown. From this photograph, it can be seen that the spun yarn of the weft is dispersed between the coarsely arranged warp and warp to cover a large area.
（実施例２）ポリ−Ｌ−乳酸繊維（２６ｄｔｅｘモノフィラメント、比重１．２４）を経糸に用いて、経糸密度４０５本／１０ｃｍ、緯糸はポリ−Ｌ−乳酸繊維（２６ｄｔｅｘモノフィラメント、比重１．２４）と竹繊維の紡績糸（１９７ｄｔｅｘ紡績糸、比重０．８）、それぞれの緯糸密度１４２本／１０ｃｍ（カバーファクター値Ｋ＝４７３０）の平織物を製織し、精練仕上げセットをした。この織物を１３０ｃｍ幅のロールロール状にスリットしたものに超音波法によりカットシールを施して、タテ６５ｍｍｘヨコ４２ｍｍのヒラ袋体を作成し、本考案の抽出バッグを得た。(Example 2) Poly-L-lactic acid fiber (26 dtex monofilament, specific gravity 1.24) is used as a warp, and the warp density is 405 pieces / 10 cm, and the weft is poly-L-lactic acid fiber (26 dtex monofilament, specific gravity 1.24). And plain weave of bamboo fibers (197 dtex spun yarn, specific gravity 0.8), and a weft density of 142 yarns / 10 cm (cover factor value K = 4730) were woven, and a scouring finish set was made. This fabric was slit into a roll roll having a width of 130 cm and cut and sealed by an ultrasonic method to prepare a flat bag body of 65 mm in length and 42 mm in width to obtain an extraction bag of the present invention.
（比較例１）ポリエステル繊維（２８ｄｔｅｘモノフィラメント、比重１．３８）を経緯に用いて、経糸密度３７４本／１０ｃｍ、緯糸密度３５４本／１０ｃｍ（カバーファクタ値Ｋ＝２７９１）の平組織織物に製織し、精練、仕上げセットした。この織物を１３０ｃｍ幅のロール状にスリットしたものに、超音波法によるカットシールを施して、タテ６５ｍｍ×ヨコ４２ｍｍのヒラ袋体を作製し、比較抽出バッグを得た。(Comparative Example 1) Polyester fibers (28 dtex monofilament, specific gravity 1.38) are used for weft and weaved into a plain fabric with a warp density of 374 yarns / 10 cm and a weft density of 354 yarns / 10 cm (cover factor value K = 2791). Scouring and finishing set. This fabric was slit into a roll having a width of 130 cm and cut and sealed by an ultrasonic method to produce a flat bag body of 65 mm in length and 42 mm in width, and a comparative extraction bag was obtained.
（比較例２）実施例１と同様にして、但し、平組織織物の経糸密度を２１３本／１０ｃｍに変更し、緯糸密度を１８０本／１０ｃｍに変更し、そのカバーファクタ値Ｋを１５８６として、比較抽出バッグを作製した。
尚、本比較例１に用いたポリエステル繊維の繊維径は、実施例１，２に用いたポリ乳酸繊維と同じ繊維糸径となるように設定された。(Comparative Example 2) As in Example 1, except that the warp density of the plain fabric is changed to 213 / 10cm, the weft density is changed to 180 / 10cm, and the cover factor value K is set to 1586. A comparative extraction bag was made.
In addition, the fiber diameter of the polyester fiber used for this comparative example 1 was set so that it might become the same fiber yarn diameter as the polylactic acid fiber used for Example 1,2.
（茶抽出性能試験）
抽出バッグに収容させる茶葉は、茶の微粉末濾過漏れ性能と抽出性能との再現性を高めるために、市販の緑茶を購入し「標準篩による製茶の粒度測定法」（原、及び他２名による茶技研、Ｎｏ．１１ ４５〜４９（１９５８））に従って、茶葉の粒度を３０号上、５０号下に篩分けを行い、３０号上が８０ｗｔ％、５０号下が２０ｗｔ％含まれるように、均一に混合したものを用い、抽出バッグの上部の開口部から精密天秤で精秤した茶葉を一袋あたり２ｇ（±５％）宛装入した。(Tea extraction performance test)
In order to improve the reproducibility of the tea fine powder filtration leakage performance and the extraction performance, the tea leaves to be stored in the extraction bag were purchased from commercially available green tea, and “size measurement method for tea making using a standard sieve” (Hara and 2 others) According to Tea Technology, No. 11 45-49 (1958)), the grain size of tea leaves is screened above 30 and below 50, so that the top 30 contains 80 wt% and the bottom 50 contains 20 wt% Using a mixture that was uniformly mixed, 2 g (± 5%) of tea leaves per bag were placed in a precise balance from the opening at the top of the extraction bag.
上記の実施例１，２及び比較例１，２で作製された茶葉収容抽出バッグを、各々について３０袋宛用意し、茶の抽出前の微粉末の漏れ量と抽出後の微粉末の漏れ量を評価した。
茶葉収容抽出バッグの抽出方法は、標準茶の審査方法（熱湯抽出法）を採用し、抽出バッグからの微粉末漏れ量は下記の方法で測定した。The tea leaf containing extraction bags prepared in Examples 1 and 2 and Comparative Examples 1 and 2 were prepared for 30 bags for each, and the leakage amount of fine powder before extraction of tea and the leakage amount of fine powder after extraction Evaluated.
The extraction method for the tea leaf containing extraction bag was a standard tea screening method (hot water extraction method), and the amount of fine powder leakage from the extraction bag was measured by the following method.
抽出バッグからの茶葉微粉末の漏れ量は、抽出前（乾燥時）及び抽出後の各々について測定した。抽出前の微粉末の漏れ量の測定には３００ｍｌビーカーを用い、ビーカーの外に微粉末が落ちないように、ビーカー内で、バッグを、上下に１袋当り２０回宛振り、抽出バッグから漏出した微粉末をビーカー内に集めた。同じビーカーを用いて、上記の操作を他の４袋についてくり返し、これに蒸留水を加えて、予め乾燥させて質量を測っておいた定量濾紙で濾過し、この濾紙を乾燥させて、質量増加分を測定し、この値をもって微粉末の漏れ量（１袋あたりに換算する）とした。The amount of tea leaf fine powder leaked from the extraction bag was measured before (after drying) and after extraction. Use a 300 ml beaker to measure the amount of fine powder before extraction. In order to prevent the fine powder from falling outside the beaker, shake the bag up and down 20 times per bag in the beaker and leak from the extraction bag. The fine powder was collected in a beaker. Using the same beaker, repeat the above operation for the other four bags, add distilled water to this, filter with a pre-dried quantitative filter paper, dry this filter paper, and increase the mass The minute was measured, and this value was taken as the amount of fine powder leakage (converted per bag).
別に、バッグの茶葉抽出後の微粉末の漏れ量を測定するために、３００ｍｌのビーカーの底部に静かにバッグを置き、ビーカー中に５分間沸騰した熱湯２００ｍｌを、可及的速やかに（２０秒間）注ぎ、ビーカー内部にバッグを静かに沈めた状態を５分間保持し、その後速やかにバッグを取り出し、ビーカー内部に沈降した粉末を、質量測定ずみの定量濾紙Ｎｏ．２で濾別し、この濾紙をデシケーターで乾燥させた後、微粉末の質量を求めた。その結果を表１に示す。Separately, in order to measure the leakage of fine powder after extraction of the tea leaves in the bag, place the bag gently on the bottom of a 300 ml beaker and add 200 ml of boiling water in the beaker for 5 minutes as quickly as possible (20 seconds). ) Pour and keep the bag gently submerged in the beaker for 5 minutes, then quickly remove the bag, and the powder that settled in the beaker is used as the quantitative filter paper No. After filtering off with 2, the filter paper was dried with a desiccator, and the mass of the fine powder was determined. The results are shown in Table 1.
本考案は、ポリ乳酸系重合体からなる繊維と竹繊維の紡績糸からなる生分解性織物の濾過材を提供するものである。この織物を用いた本考案の抽出バッグは、実用上十分な抽出濾過性能を有し、生分解性に優れ、製造技術的に幾分かの難度はあれ、製造する際の実現性が高いことと、産業上での利用度の高いことが予想できる。 The present invention provides a filter material for a biodegradable woven fabric comprising fibers made of a polylactic acid polymer and spun yarns of bamboo fibers. The extraction bag of the present invention using this woven fabric has practically sufficient extraction filtration performance, is excellent in biodegradability, and has a high degree of feasibility in manufacturing, although it has some difficulty in manufacturing technology. It can be expected that the utilization in the industry is high.
１ 織物
２ 経糸（ポリ−Ｌ−乳酸繊維 ２６ｄｔｅｘモノフィラメント）
３ 緯糸（ポリ−Ｌ−乳酸繊維 ２６ｄｔｅｘモノフィラメント）
４ 緯糸（竹繊維 １９７ｄｔｅｘ紡績糸）1 Woven 2 Warp (Poly-L-lactic acid fiber 26dtex monofilament)
3 Weft (Poly-L-lactic acid fiber 26dtex monofilament)
4 Weft (Bamboo fiber 197 dtex spun yarn)
Claims (2)
Ｋ＝（Ｎｘ（Ａ）１／２Ｔ）＋（Ｍ１ｘ（Ｂ１）１／２／Ｓ１＋Ｍ２ｘ（Ｂ２）１／２／Ｓ２）
〔但し、上式中、Ｎは経糸密度（本／１０ｃｍ）を表し、Ｍ１、Ｍ２は緯系密度（本／１０ｃｍ）を表し、Ａは経糸の繊度（ｄｔｅｘ）を表し、Ｂ１、Ｂ２は緯糸の繊度（ｄｔｅｘ）を表し、Ｔは経糸の比重を表し、Ｓ１、Ｓ２は緯糸の比重を表す。〕が、１６００〜６４００である。Cover factor value K represented by the following formula of the biodegradable fabric:
K = (Nx (A) 1/2 T) + (M 1 x (B 1 ) 1/2 / S 1 + M 2 x (B 2 ) 1/2 / S 2 )
[In the above formula, N represents the warp density (lines / 10 cm), M 1 and M 2 represent the weft density (lines / 10 cm), A represents the warp fineness (dtex), B 1 , B 2 represents the fineness (dtex) of the weft, T represents the specific gravity of the warp, and S 1 and S 2 represent the specific gravity of the weft. ] Is 1600-6400.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110073607A1 (en) * | 2009-09-29 | 2011-03-31 | Fu Thomas Z | Disposable single use beverage package |
| US9108794B2 (en) | 2009-09-29 | 2015-08-18 | Lbp Manufacturing, Inc. | Disposable single use beverage package |
| US9452879B2 (en) | 2011-07-26 | 2016-09-27 | Lbp Manufacturing Llc | Sealed beverage basket and method of making |
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2007
- 2007-10-16 JP JP2007008739U patent/JP3141054U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110073607A1 (en) * | 2009-09-29 | 2011-03-31 | Fu Thomas Z | Disposable single use beverage package |
| US9108794B2 (en) | 2009-09-29 | 2015-08-18 | Lbp Manufacturing, Inc. | Disposable single use beverage package |
| US9527661B2 (en) * | 2009-09-29 | 2016-12-27 | Lbp Manufacturing Llc | Disposable single use beverage package |
| US9629494B2 (en) | 2009-09-29 | 2017-04-25 | Lbp Manufacturing Llc | Disposable single use beverage filter basket |
| US9743798B2 (en) | 2009-09-29 | 2017-08-29 | Lbp Manufacturing Llc | Disposable single use beverage package |
| US9452879B2 (en) | 2011-07-26 | 2016-09-27 | Lbp Manufacturing Llc | Sealed beverage basket and method of making |
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