JP5636131B1 - Cotton for filling and method for producing the same - Google Patents
Cotton for filling and method for producing the same Download PDFInfo
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Abstract
【課題】圧縮に対してへたりにくい麻製の詰用綿およびその製造方法を提供する。【課題を解決するための手段】アルカリ処理によりクリンプが発現した麻繊維を９０重量％以上含む詰用綿であって、前記麻繊維は、平均繊維長が３０〜６０ｍｍであり、繊維長が１５０ｍｍ以上の繊維Ａを５〜１５重量％含み、繊維Ａの平均見掛繊度ｄＡが８〜１５ｄｔｅｘであり、ｄＡに対する、前記麻繊維中の繊維長４０〜８０ｍｍの繊維Ｂの平均見掛繊度ｄＢの比率（ｄＢ／ｄＡ）が０．５〜０．８である詰用綿である。【選択図】 図１Kind Code: A1 A hemp filling cotton that is difficult to sag against compression and a method for producing the same. Means for Solving the Problems Cotton for filling containing 90% by weight or more of hemp fibers in which crimp is expressed by alkali treatment, wherein the hemp fibers have an average fiber length of 30 to 60 mm and a fiber length of 150 mm. 5 to 15% by weight of the above fiber A, the average apparent fineness dA of the fiber A is 8 to 15 dtex, and the average apparent fineness dB of the fiber B having a fiber length of 40 to 80 mm in the hemp fiber relative to dA Cotton for filling with a ratio (dB / dA) of 0.5 to 0.8. [Selection] Figure 1
Description
本発明は、詰用綿及びその製造方法に関する。特には、圧縮に対する反撥性に優れた麻製の詰用綿に関する。 The present invention relates to cotton for filling and a method for producing the same. In particular, the present invention relates to hemp padding cotton having excellent resilience to compression.
麻製の詰用綿は麻の吸湿性や冷感がもたらす清涼感を有しており、とくに夏物の布団綿などに好んで用いられている。 Linen cotton has a refreshing sensation brought about by the hygroscopicity and coolness of hemp, and is especially preferred for summer futon cotton.
従来の麻製の詰用綿の製造方法としては、麻トップをアルカリ処理して繊維にクリンプを与えたのち、あるいは処理前に所定の繊維長になるように所定の間隔でカットし、カード機で製綿する製造方法が開示されている（例えば特許文献１，２参照）。 As a conventional method for producing hemp filling cotton, after the hemp top is treated with alkali and the fibers are crimped, or cut at predetermined intervals so as to have a predetermined fiber length before the processing, a card machine A manufacturing method for producing cotton is disclosed (for example, see Patent Documents 1 and 2).
麻繊維を精錬（デガミング）後麻トップ工程を経ずして製綿する製造方法もある。例えば、麻繊維を精錬後、絹紡績工程に順じて回転シリンダでくしけずり開繊ラップとなし、この開繊ラップを切綿機でカットし、次いでカード機で製綿する製造方法が行われる（例えば非特許文献１参照）。開繊ラップはその製造プロセスからわかるように繊維がほぼ一方向に配列しており、切綿機ではラップの切断方向は繊維の配向方向と直交する。 There is also a manufacturing method in which hemp fiber is refined (deguming) and then cotton is made without going through the hemp top step. For example, after refining hemp fibers, a manufacturing method is performed in which a spinning cylinder is used to form a comb-opening wrap in accordance with the silk spinning process, the opening wrap is cut with a cutting machine, and then cotton is made with a card machine ( For example, refer nonpatent literature 1). As can be seen from the manufacturing process of the opening wrap, the fibers are arranged in almost one direction, and in a cutting machine, the cutting direction of the wrap is orthogonal to the fiber orientation direction.
麻製の詰用綿は、麻繊維自体の曲げ変形に関する歪み回復性が一般の合成繊維に比べて低いこともあって、圧縮に対してへたりやすい傾向にある。 Hemp-filled cotton has a tendency to be easily squeezed against compression because the strain recovery property regarding bending deformation of the hemp fiber itself is lower than that of a general synthetic fiber.
圧縮に対してへたりにくい、麻製の詰用綿が求められている。 There is a need for linen filling cotton that is resistant to compression.
本発明は、圧縮に対してへたりにくい、麻製の詰用綿およびその製造方法を提供することを目的とする。 An object of the present invention is to provide a linen-filling cotton that is difficult to sag against compression and a method for producing the same.
上記の目的を達成するため、本発明に係る詰用綿は、アルカリ処理によりクリンプが発現した麻繊維を９０重量％以上含む詰用綿であって、前記麻繊維は、平均繊維長が３０〜６０ｍｍであり、繊維長が１５０ｍｍ以上の繊維Ａを５〜１５重量％含み、繊維Ａの平均見掛繊度ｄＡが８〜１５ｄｔｅｘであり、ｄＡに対する、前記麻繊維中の繊維長４０〜８０ｍｍの繊維Ｂの平均見掛繊度ｄＢの比率（ｄＢ／ｄＡ）が０．５〜０．８である詰用綿であることを特徴とする。 In order to achieve the above object, the filling cotton according to the present invention is a filling cotton containing 90% by weight or more of hemp fibers in which crimps are expressed by alkali treatment, and the hemp fibers have an average fiber length of 30 to 30%. 60 mm, fiber length of 5 to 15% by weight of fiber A having a length of 150 mm or more, fiber A having an average apparent fineness dA of 8 to 15 dtex, fiber length of 40 to 80 mm in the hemp fiber relative to dA It is characterized by being a cotton for filling whose ratio of the average apparent fineness dB of B (dB / dA) is 0.5-0.8.
また、上記の目的を達成するために、本発明に係る詰用綿の製造方法は、前記詰用綿の製造方法であって、複数の麻繊維束を主成分とする麻シートを準備する麻シート準備工程、該麻シートを７０〜１２０ｍｍの間隔で切断して繊維集合体となす切断工程、該繊維集合体をアルカリ処理して麻繊維にクリンプを発現させるアルカリ処理工程、アルカリ処理された該繊維集合体を反毛する反毛工程、反毛された該繊維集合体をカーディングして繊維を積層する製綿工程を含み、前記麻シート中の前記麻繊維束の面方向配向度が０．２以下で、かつ、前記麻シートは一端と他端との距離が長さの７０％以下であるように湾曲した状態の前記麻繊維束を５０重量％以上含み、各前記麻繊維束は、一本の植物麻が精錬されてなり、該麻繊維束中で該植物麻中の繊維の集合状態がほぼ保たれているものであることを特徴とする。 In order to achieve the above object, a method for producing filling cotton according to the present invention is a method for producing the filling cotton, wherein hemp sheets are prepared by preparing a hemp sheet mainly composed of a plurality of hemp fiber bundles. A sheet preparation step, a cutting step of cutting the hemp sheet at intervals of 70 to 120 mm to form fiber aggregates, an alkali treatment step of alkali-treating the fiber aggregates to develop crimps on hemp fibers, the alkali-treated step A fluffing step of curling the fiber aggregate, and a cotton making step of carding the fluffed fiber aggregate and laminating the fibers, and the degree of orientation in the plane direction of the hemp fiber bundle in the hemp sheet is 0 2 or less, and the hemp sheet includes 50% by weight or more of the hemp fiber bundle in a curved state so that the distance between one end and the other end is 70% or less of the length, A plant hemp is refined, and the plant hemp is bundled in the hemp fiber bundle. Wherein the state of aggregation of the fibers in the hemp is what is substantially maintained.
本発明により、圧縮に対してへたりにくい、麻製の詰用綿およびその製造方法が提供される。 INDUSTRIAL APPLICABILITY According to the present invention, a linen cotton for filling and a method for producing the same are provided which are not easily squeezed against compression.
本発明は、麻（ラミー）製の詰用綿及びその製造方法に関する。特には、圧縮に対する回復性に優れた、麻製の詰用綿に関する。詰用綿は、布団やキルティング布などに中綿として用いられるクッション材としての綿である。 The present invention relates to cotton for filling made of hemp (ramie) and a method for producing the same. In particular, the present invention relates to linen-filling cotton having excellent recovery from compression. Filling cotton is cotton as a cushioning material used as batting for futons and quilted cloths.
麻製の詰用綿は、麻繊維自体の曲げ変形に関する歪み回復性が一般の合成繊維に比べて低いこともあって圧縮に対してへたりやすいという問題があった。本発明者は、この点について鋭意検討した結果、詰用綿を構成する麻繊維の繊度、繊維長分布を所定の範囲に調整することによりこの問題が解決されることを見出した。 The hemp filling cotton has a problem that the strain recovery property regarding the bending deformation of the hemp fiber itself is lower than that of a general synthetic fiber, so that the hemp fiber is liable to be compressed. As a result of intensive studies on this point, the present inventor has found that this problem can be solved by adjusting the fineness and fiber length distribution of hemp fibers constituting the filling cotton to a predetermined range.
一般に、麻繊維の原料の麻原草は夾雑物を含み、麻繊維が平行な束状に互いに膠着状態で収束しているので、発酵処理などによりこの夾雑物を除去し、かつ、製綿のためのカード機により製綿できるように繊維を適度な繊維長になるように切断するとともに、繊維同士を分繊することが必要であった。 In general, hemp raw material of hemp fibers contains impurities, and the hemp fibers converge in a bundled state in parallel bundles, so these impurities are removed by fermentation treatment etc. and for cotton production It was necessary to cut the fibers so as to have an appropriate fiber length and to separate the fibers from each other so that cotton could be produced by the carding machine.
このためには、植物麻の茎を精錬、漂白、軟繊して得られたデガムド繊維塊を麻紡績に用いられるように加工された市販の麻トップをアルカリ処理してクリンプを発現させたのち、カード機に適した所定の長さに切断して製綿することが、製綿業者としては製綿の手間がかからず容易であるとして行われることがあった。 For this purpose, after demineralized fiber lump obtained by refining, bleaching and softening plant hemp stalks, a commercial hemp top processed to be used for hemp spinning is treated with alkali to develop crimp. In some cases, it is easy for a cotton maker to cut the cotton into a predetermined length suitable for a card machine, because it does not require a lot of time and effort.
しかし、麻トップは繊維長を揃えるために繊維塊を構成する麻繊維束を一方向に引き揃えて牽切したり、コーミングしたりドラフトしたりして紡績糸の製造に適したスライバとしたものであるため、この牽切やコーミングやドラフトによる作用により繊維が分繊し、結果として構成繊維の繊度が比較的小さく、このような方法で得られた詰用綿を構成する繊維は、繊維長が比較的長いものであっても繊度が小さいので、詰用綿中での繊維同士の接触点が多く、綿の変形時に繊維同士で摩擦が多く生じて圧縮回復性が低いという問題がある。本発明者らは、詰用綿を構成する麻繊維の繊度、繊維長分布を所定の範囲に調整する詰用綿の製造方法と、その製造方法によりこの問題が解決されることを見出した。 However, the hemp top is a sliver suitable for the production of spun yarn by aligning the hemp fiber bundles constituting the fiber lump in one direction, checking, combing and drafting to align the fiber length. Therefore, the fiber is divided by the action of the check, combing and drafting, and as a result, the fineness of the constituent fiber is relatively small. The fiber constituting the filling cotton obtained by such a method has a fiber length However, since the fineness is small even if it is relatively long, there are many contact points between the fibers in the filling cotton, and there is a problem that a lot of friction occurs between the fibers when the cotton is deformed and the compression recovery property is low. The present inventors have found that this problem can be solved by a method for producing filling cotton and adjusting the fineness and fiber length distribution of hemp fibers constituting the filling cotton and the production method thereof.
本発明の詰用綿の製造方法においては、植物麻の茎を集めて精錬、漂白、軟繊（総称して精錬ともいう）して得られたデガムド繊維塊が用いられる。デガムド繊維塊は一本の植物麻中のセルロース繊維の集合状態をほぼ保った状態の麻繊維束、すなわち長くて未分繊の太い麻繊維束を主体に構成されている。換言すれば、各麻繊維束は、一本の植物麻に由来し、その植物麻が精錬されてなり、該麻繊維束中で該植物麻中の繊維の集合状態がほぼ保たれているものである。麻繊維束の長さは、通常、精錬前の植物麻の茎の長さにほぼ等しい。単位長さ当たり重量は、精錬前の植物麻の茎に存在する対応のセルロース繊維束の単位長さ当たり重量にほぼ等しい。デガムド繊維塊中には繊維束から分繊した単繊維も存在する。 In the method for producing stuffing cotton of the present invention, a degummed fiber lump obtained by collecting plant hemp stalks and refining, bleaching, and softening (collectively referred to as refining) is used. The degummed fiber lump is mainly composed of a hemp fiber bundle in a state where the aggregated state of cellulose fibers in one plant hemp is substantially maintained, that is, a long and undivided thick hemp fiber bundle. In other words, each hemp fiber bundle is derived from a single plant hemp, the plant hemp is refined, and the aggregate state of the fibers in the plant hemp is almost maintained in the hemp fiber bundle. It is. The length of the hemp fiber bundle is generally equal to the length of the plant hemp stalk before refining. The weight per unit length is approximately equal to the weight per unit length of the corresponding cellulose fiber bundle present in the plant hemp stalk before refining. In the degummed fiber mass, there are also single fibers separated from the fiber bundle.
本発明の詰用綿の製造方法においては、この繊維束を主体とする麻繊維がシート状に並べられた麻シートを用いる。この麻シートは、例えばデガムド繊維塊を構成する繊維をシート状に再集合させることにより得ることができる。あるいは、デガムド繊維塊から選別した麻繊維束をシート状に集合させることにより得ることができる。（麻シート準備工程） In the method for producing filling cotton of the present invention, a hemp sheet in which hemp fibers mainly composed of this fiber bundle are arranged in a sheet shape is used. This hemp sheet can be obtained, for example, by reassembling the fibers constituting the degummed fiber mass into a sheet form. Alternatively, it can be obtained by collecting hemp fiber bundles selected from the degummed fiber lump in a sheet form. (Hemp sheet preparation process)
本発明の詰用綿の製造方法においては、麻繊維束の向きが一定方向になっていないように麻繊維束をシート状に集合させた麻シートを用いる。すなわち、ほとんどすべての麻繊維束が面方向にほとんど無秩序に存在した状態にある麻シートを用いる。例えば、デガムド繊維塊を構成する繊維を無作為に並べてシート状に再集合させた麻シートが用いられる。麻シート中の麻繊維束の大半は、繊維塊中で不規則に湾曲している。麻繊維束を意識的に引き延ばしたり特定の方向に向けるような操作を加えることなく無作為にシート状に集合させることにより、ほとんどすべての麻繊維束が面方向にほとんど無秩序に存在した状態にある麻シートが得られる。なお、麻シートは麻繊維束を主成分として構成されているが、麻シートには精錬、漂白、軟繊工程で麻繊維束から分繊した単繊維の存在も不可避である。 In the method for producing filling cotton of the present invention, a hemp sheet is used in which hemp fiber bundles are gathered in a sheet shape so that the direction of the hemp fiber bundles is not constant. That is, a hemp sheet is used in which almost all hemp fiber bundles are present almost randomly in the plane direction. For example, a hemp sheet in which fibers constituting a degummed fiber lump are randomly arranged and reassembled into a sheet shape is used. Most of the hemp fiber bundles in the hemp sheet are irregularly curved in the fiber mass. By randomly assembling the hemp fiber bundles into a sheet without intentionally stretching or directing them in a specific direction, almost all hemp fiber bundles are present almost randomly in the plane direction. A hemp sheet is obtained. The hemp sheet is mainly composed of a hemp fiber bundle, but it is inevitable that the hemp sheet contains single fibers separated from the hemp fiber bundle in the refining, bleaching and soft fiber processes.
また、本発明の詰用綿の製造方法において用いられる麻シート中には、図１に示すように、麻繊維束２の一端Ｙと他端Ｚとの距離Ｄが、麻繊維束２の長さＬ（真っ直ぐに延ばされた状態を想定した場合の麻繊維束２の長さ）の５〜７０％であるように湾曲した状態となっている麻繊維束が麻シートの５０重量％以上を占めている。
Moreover, in the hemp sheet used in the method for producing filling cotton of the present invention, as shown in FIG. 1, the distance D between the one end Y and the other end Z of the
麻繊維束をシート状に並べるための操作は手作業で行なってもよいが、デガムド繊維塊を機械装置により受け面上に面方向に順次堆積させる装置などにより機械的にデガムド繊維塊をシート化することにより行なってもよい。 The operation for arranging the hemp fiber bundles in a sheet may be performed manually, but the degummed fiber lump is mechanically formed into a sheet by a device that sequentially deposits the degummed fiber lump on the receiving surface by a mechanical device. May be performed.
本発明の詰用綿の製造方法においては、麻シート中の麻繊維束の面方向配向度が０．２以下であることが好ましい。面方向配向度（ヘルマンの配向度）は、次式ｆで定義される値である。
ｆ＝（３＜ＣＯＳ２θ＞−１）／２
ここで、θは麻シートの面方向の基準線と麻繊維束とのなす角度を示し、＜ＣＯＳ２θ＞は測定した全ての麻繊維束に関するＣＯＳ２θの平均値を示す。
In the method for producing cotton for filling of the present invention, it is preferable that the degree of orientation in the plane direction of the hemp fiber bundle in the hemp sheet is 0.2 or less. The plane direction orientation degree (Herman orientation degree) is a value defined by the following formula f.
f = (3 <COS 2 θ> −1) / 2
Here, θ represents an angle formed by the reference line in the surface direction of the hemp sheet and the hemp fiber bundle, and <COS 2 θ> represents an average value of COS 2 θ for all the measured hemp fiber bundles.
なお、すべての麻繊維束が基準方向に配向した場合、ヘルマンの配向度ｆの値は１に、すべての麻繊維束が基準方向に関して完全無秩序に存在した状態にある場合、ヘルマンの配向度ｆの値は０となる。本発明においては、麻シートの面方向に設定したある基準線に関して、ｆが０．２以下であるような基準線が存在する場合は、ほとんどすべての麻繊維束が麻シートの面方向に関して無秩序に存在した状態にあるといえる。 When all the hemp fiber bundles are oriented in the reference direction, the value of the Herman orientation degree f is 1, and when all the hemp fiber bundles are present in a disordered manner with respect to the reference direction, the Herman orientation degree f is The value of is 0. In the present invention, when there is a reference line such that f is 0.2 or less with respect to a certain reference line set in the plane direction of the hemp sheet, almost all hemp fiber bundles are disordered with respect to the plane direction of the hemp sheet. It can be said that it exists in the state.
ついで、この麻シートを、７０〜１２０ｍｍの間隔で切断して繊維集合体となす（切断工程）。 Next, the hemp sheet is cut at intervals of 70 to 120 mm to form fiber assemblies (cutting step).
次いで、この繊維集合体をアルカリ処理液で処理（アルカリ処理）して麻繊維にクリンプを発現させる（アルカリ処理工程）。 Next, this fiber assembly is treated with an alkali treatment liquid (alkali treatment) to cause crimp to appear on the hemp fibers (alkali treatment step).
次いで、アルカリ処理された繊維集合体を、打綿機や開綿機や反毛機を用いほぐす（反毛工程）。 Next, the fiber assembly subjected to the alkali treatment is loosened using a cotton hitting machine, a cotton opening machine or a repelling machine (a repulsion process).
麻以外の繊維を含む詰用綿を得る場合は、この反毛工程でこの繊維集合体に麻以外の繊維を混綿することができる。 When a filling cotton containing fibers other than hemp is obtained, fibers other than hemp can be blended with this fiber assembly in this rebound process.
次いで、反毛された繊維集合体をカーディングして繊維を積層する（製綿工程）。 Next, carding is performed on the fiber aggregate that has been bristled to stack the fibers (cotton making process).
これらの工程で構成される本発明の詰用綿の製造方法はトップメーキングなどのスライバ化の工程が不要であり、生産効率的にも優れた製造方法である。本発明の詰用綿はこれらの工程を含む製造方法により製造されることが最も好ましい。 The method for producing filling cotton of the present invention constituted by these steps does not require a sliver forming step such as top making, and is an excellent production method in terms of production efficiency. Most preferably, the cotton for filling of the present invention is produced by a production method including these steps.
本発明の詰用綿は以下の構成を有する。すなわち、本発明の詰用綿は、アルカリ処理によりクリンプが発現した麻繊維からなり、この麻繊維は、平均繊維長が３０〜６０ｍｍであり、繊維長が１５０ｍｍ以上の繊維Ａを５〜１５重量％含み、繊維Ａの平均見掛繊度ｄＡが８〜１５ｄｔｅｘであり、ｄＡに対する、前記麻繊維中の繊維長４０〜８０ｍｍの繊維Ｂの平均見掛繊度ｄＢの比率（ｄＢ／ｄＡ）が０．５〜０．８である。あるいは、本発明の詰用綿はこの構成を有する麻繊維を９０重量％以上含む詰用綿であってもよい。この構成を有する麻繊維を９５重量％以上含む詰用綿であることが、へたりが少なく、かつ麻繊維特有の吸湿性や冷感がもたらす清涼感のうえでさらに好ましい。この構成を有する麻繊維を９８重量％以上含む詰用綿であることが、へたりが少なく、かつ麻繊維特有の吸湿性や冷感がもたらす清涼感のうえで最も好ましい。 The cotton for filling of the present invention has the following configuration. That is, the cotton for filling of the present invention is composed of hemp fibers in which crimps are expressed by alkali treatment, and the hemp fibers have an average fiber length of 30 to 60 mm and 5 to 15 weights of fiber A having a fiber length of 150 mm or more. %, The average apparent fineness dA of the fiber A is 8 to 15 dtex, and the ratio (dB / dA) of the average apparent fineness dB of the fiber B having a fiber length of 40 to 80 mm in the hemp fiber to dA is 0. 5 to 0.8. Alternatively, the filling cotton of the present invention may be a filling cotton containing 90% by weight or more of hemp fibers having this configuration. A filling cotton containing 95% by weight or more of hemp fibers having this configuration is more preferable in terms of the refreshing feeling caused by the hygroscopicity and cooling sensation peculiar to hemp fibers with little settling. The filling cotton containing 98% by weight or more of hemp fibers having this configuration is most preferable in terms of the refreshing feeling caused by the hygroscopic property and the cool feeling peculiar to hemp fibers with little settling.
ここで、平均繊維長は、ＪＩＳ Ｌ １０１５に準拠して求められるステープルダイアグラムからＪＩＳ Ｌ １０１５に準拠して求められる平均繊維長であり、繊維Ａの平均見掛繊度は、詰用綿に含まれる繊維長が１５０ｍｍ以上の麻繊維からサンプリングされた繊維群の見掛繊度の平均値であり、見掛繊度はＪＩＳ Ｌ １０１５に準拠して測定される。繊維Ｂの平均見掛繊度は、詰用綿に含まれる繊維長が４０〜８０ｍｍの麻繊維からサンプリングされた繊維群の見掛繊度の平均値である。 Here, the average fiber length is an average fiber length obtained in accordance with JIS L 1015 from a staple diagram obtained in accordance with JIS L 1015, and the average apparent fineness of the fiber A is included in the cotton for filling. It is an average value of the apparent fineness of a fiber group sampled from hemp fibers having a fiber length of 150 mm or more, and the apparent fineness is measured according to JIS L 1015. The average apparent fineness of the fiber B is an average value of the apparent fineness of the fiber group sampled from hemp fibers having a fiber length of 40 to 80 mm contained in the filling cotton.
本発明の詰用綿は平均繊維長が３０〜６０ｍｍであるが、平均繊維長がこの範囲を超えて長いと、製綿工程でカードのシリンダに巻きつきやすいというトラブルが発生しやすいので、製造しにくい。平均繊維長がこの範囲を超えて短いと、詰用綿がかさだか性に劣り、圧縮率が低く柔軟なクッション性に劣り、また、圧縮回復性も不良となる。 The filling cotton of the present invention has an average fiber length of 30 to 60 mm. If the average fiber length is longer than this range, troubles such as easy winding around the card cylinder occur during the cotton-making process. Hard to do. When the average fiber length is shorter than this range, the filling cotton is inferior in bulkiness, the compression ratio is low, the soft cushioning property is inferior, and the compression recovery property is also poor.
本発明の詰用綿は、太くて長い繊維長の繊維Ａと、それより細くて短い繊維長の繊維との組合せを有することにより、かさだかでかつ圧縮回復性が良好であるという効果が得られる。すなわち、本発明の詰用綿は繊維長が１５０ｍｍ以上という長い繊維長の繊維Ａを麻繊維全体に対して５〜１５重量％含み、かつ、繊維Ａの平均見掛繊度ｄＡが８〜１５ｄｔｅｘであるが、このように、通常の麻繊維に比べて太くて長い繊維長の繊維Ａを従来の詰用綿に比べてはるかに大きい所定の割合で含み、かつ繊維長４０〜８０ｍｍで繊維Ａより平均的に細繊度の繊維Ｂを上述の割合で含有する。これにより、かさだかでかつ圧縮回復性の良好な詰用綿が得られる。 The filling cotton of the present invention has a combination of a thick and long fiber length fiber A and a thinner and shorter fiber length fiber, thereby providing an effect of being bulky and having good compression recovery. It is done. That is, the cotton for filling of the present invention contains 5 to 15% by weight of the fiber A having a long fiber length of 150 mm or more based on the whole hemp fiber, and the average apparent fineness dA of the fiber A is 8 to 15 dtex. In this way, the fiber A, which is thicker and longer than the normal hemp fiber, is contained in a predetermined ratio much larger than that of the conventional filling cotton, and the fiber length is 40 to 80 mm than the fiber A. On average, fine fibers B are contained in the above-mentioned proportion. As a result, a filling cotton that is bulky and has good compression recovery properties can be obtained.
詰用綿中の繊維Ａの含有比率が５重量％未満であると、詰用綿の圧縮率が低くなる。繊維Ａの含有比率が１５重量％を越える詰用綿は、圧縮率が高いものの圧縮回復性が不良であり、また、工業的な製造がきわめて難しい。 When the content ratio of the fiber A in the filling cotton is less than 5% by weight, the compression rate of the filling cotton becomes low. Cotton for filling with a fiber A content of more than 15% by weight has a high compression ratio but poor compression recovery and is extremely difficult to produce industrially.
繊維Ａを５〜１５重量％の割合で含む詰用綿は、繊維が湾曲し、ほとんどすべての繊維が面方向に完全無秩序に存在した状態にあるすなわち面方向配向度が小さい麻シートを、所定の間隔で切断して繊維集合体となすという前述の切断工程を採用することにより得られる。 The filling cotton containing 5 to 15% by weight of the fiber A is a hemp sheet in which the fibers are curved and almost all of the fibers are present in a disordered manner in the plane direction, that is, the plane direction orientation degree is small. It is obtained by adopting the above-mentioned cutting process of cutting at intervals to form a fiber assembly.
つまり、麻シート中の麻繊維束の面方向配向度が小さく、また麻繊維束が湾曲しているため、この麻シートを所定の間隔で切断して得られた略長方形状のあるいは略短冊状のシートのなかには、切断の間隔より長い繊維長の繊維がかなりの比率で存在することになる。この比率は、麻シート中で麻繊維束がまっすぐな状態で切断方向と直交して面方向に配向しているケースと比較して大きいばかりでなく、麻シート中で麻繊維束がまっすぐな状態で配向の向きが面方向にランダムであるケースにくらべても大きい。本発明においては、切断後の繊維の繊維長分布は、切断の間隔に依存するが、間隔を７０〜１２０ｍｍの範囲とすることにより、麻シート中の繊維Ａの比率が５〜１５重量％である詰用綿が得られる。互いに隣り合う切断線の間の間隙が切断線の長手方向で、最大値と最小値の差が１ｃｍ以内で、異なっていてもよいが、互いに隣り合う切断線が平行であること、および麻シートが長尺で切断線の方向が麻シートの幅方向と略同じであることが切断を機械化するうえで好ましい。また、麻シートが長尺で麻シートの幅が切断の間隔以上であることがシート化操作を容易にするうえで、また生産効率のうえで好ましい。 That is, since the degree of orientation in the plane direction of the hemp fiber bundle in the hemp sheet is small, and the hemp fiber bundle is curved, the substantially rectangular or strip-like shape obtained by cutting this hemp sheet at a predetermined interval In this sheet, there will be a considerable proportion of fibers having a fiber length longer than the cutting interval. This ratio is not only larger than the case where the hemp fiber bundle is straight in the hemp sheet but is oriented in the plane direction perpendicular to the cutting direction, and the hemp fiber bundle is straight in the hemp sheet. This is larger than the case where the orientation is random in the plane direction. In the present invention, the fiber length distribution of the fibers after cutting depends on the interval of cutting, but by setting the interval to a range of 70 to 120 mm, the ratio of the fibers A in the hemp sheet is 5 to 15% by weight. A filling cotton is obtained. The gap between adjacent cutting lines may be different in the longitudinal direction of the cutting line, and the difference between the maximum value and the minimum value may be different within 1 cm, but the adjacent cutting lines are parallel, and the hemp sheet In order to mechanize the cutting, it is preferable that is long and the direction of the cutting line is substantially the same as the width direction of the hemp sheet. In addition, it is preferable in view of production efficiency that the hemp sheet is long and the width of the hemp sheet is equal to or greater than the cutting interval in terms of facilitating the sheeting operation.
麻繊維束には、太繊度の麻繊維が多く含まれているので、短冊状のシートのなかには、長くてかつ太繊度の麻繊維が多く含まれる。従って、本発明の詰用綿には、繊維長が１５０ｍｍ以上と長く、繊度が８〜１５ｄｔｅｘと太い繊維Ａを５〜１５重量％という高い比率で含ませることができる。 Since the hemp fiber bundle contains a large amount of hemp fibers having a large fineness, the strip-shaped sheet contains a large amount of long and fine hemp fibers. Therefore, the filling cotton of the present invention can contain a large fiber A having a fiber length as long as 150 mm or more and a fineness of 8 to 15 dtex and a thick fiber A of 5 to 15% by weight.
なお、麻繊維束中の繊維の一部は反毛工程や製綿工程における機械的アクションにより切断や分繊されるので、詰用綿における繊維Ａ、繊維Ｂの含有比率は、最終的には製綿工程で定まる。 In addition, since some of the fibers in the hemp fiber bundle are cut or separated by mechanical action in the repelling process or the cotton making process, the content ratio of the fibers A and B in the filling cotton is finally Determined by the cotton-making process.
また、本発明においては、反毛工程、製綿工程が通常の合成繊維綿の加工と同様の条件でなされた場合、シリンダへの繊維の巻きつきや、落綿等の機械的トラブルが発生しやすいので、従来の麻綿の製造条件に準じて、シリンダの回転数を通常の合成繊維綿の製綿条件にくらべて１／２〜２／３にして製綿することが生産効率や製品収率のうえで好ましい。さらに、反毛工程も、反毛する機械の１回通しではなく、通常の合成繊維綿の製綿時よりも弱い打綿条件で２回通しを行うことが生産効率や製品収率のうえで好ましい。 Further, in the present invention, when the repelling process and the cotton making process are performed under the same conditions as those for normal synthetic fiber cotton, mechanical troubles such as wrapping of fibers around the cylinder and falling cotton occur. Since it is easy to produce cotton in accordance with the conventional production conditions of linen, the production speed and product yield should be reduced to 1/2 to 2/3 of the cylinder rotation speed compared to the normal synthetic fiber cotton production conditions. It is preferable in terms of rate. Furthermore, in terms of production efficiency and product yield, it is also necessary to carry out the doubling process twice instead of using a single knitting machine for fluffing, rather than using a normal synthetic fiber cotton. preferable.
本発明の詰用綿においては、ｄＡが８ｄｔｅｘ未満であると、かさだかでかつ圧縮回復性の良好な詰用綿が得られない。また、反毛工程や製綿工程での機械的アクションにより繊維が分繊あるいは切断して細繊化や短繊維化がある程度生ずるので、ｄＡが１５ｄｔｅｘ以上の詰用綿は、生産性が劣り効率的な製造が難しい。 In the cotton for filling of the present invention, if the dA is less than 8 dtex, the cotton for filling which is bulky and has good compression recovery property cannot be obtained. In addition, since the fibers are split or cut by mechanical action in the repelling process or the cotton making process, finer or shorter fibers are produced to some extent, so cotton for filling with dA of 15 dtex or more has poor productivity and efficiency. Manufacturing is difficult.
本発明の詰用綿は、繊維Ｂの繊維長分布が比較的直線的で他の繊維Ｂより長い繊維長の部分に比べるとフラットであり、重量平均では、繊維Ｂの平均繊維長が詰用綿全体の平均繊維長に近く、繊維Ｂは繊維長について詰用綿を代表する繊維群とみなすことができる。繊維Ｂの含有比率は、切断工程だけでなく軟繊工程や、反毛工程や、製綿工程における繊維に対する機械的アクションにも影響される。すなわち、これらの機械的アクションにより上述のように繊維が分繊あるいは切断して細繊化や短繊維化が起こり、繊維Ａ、繊維Ｂの含有比率がそのような機械的アクションに影響されて定まる。これにより、詰用綿中の繊維Ａの含有比率は５〜１５重量％となり、このような含有比率であることが詰用綿の良好な圧縮回復性のうえで好ましく作用する。 The cotton for filling of the present invention has a relatively straight fiber length distribution of the fibers B and is flat compared to a portion having a longer fiber length than the other fibers B. In terms of weight average, the average fiber length of the fibers B is used for filling. Near the average fiber length of the whole cotton, the fiber B can be regarded as a fiber group representing the filling cotton in terms of the fiber length. The content ratio of the fiber B is influenced not only by the cutting process but also by a mechanical action on the fiber in the soft fiber process, the fluff process, and the cotton making process. That is, these mechanical actions cause the fibers to be split or cut as described above, resulting in finer or shorter fibers, and the content ratio of the fibers A and B is determined by such mechanical actions. . Thereby, the content ratio of the fiber A in the filling cotton is 5 to 15% by weight, and such a content ratio preferably acts on the good compression recovery property of the filling cotton.
例えば、デガムド繊維塊の麻繊維束を手作業で一方向に引き揃えて繊維の配向方向と直交する方向に例えば４０〜８０ｍｍの切断幅間隔で切断して繊維長４０〜８０ｍｍの繊維を主体とする繊維群を得て、同様にアルカリ処理し、極めて弱い機械的アクションにより反毛し、上述の本発明の製造方法における反毛工程で得られた反毛と混合して製綿すれば、ｄＢ／ｄＡが０．８を超える詰用綿を得ることができるが、このような詰用綿は、繊維Ａをほとんど含有せず、短くて太繊度の繊維を必要以上に多く含有するので圧縮率が低く柔軟なクッション性に劣り、また、圧縮回復性も不良となる。 For example, a hemp fiber bundle of degummed fiber lumps is manually aligned in one direction and cut in a direction perpendicular to the fiber orientation direction, for example, at a cutting width interval of 40 to 80 mm, and mainly a fiber having a fiber length of 40 to 80 mm. If a fiber group is obtained, it is treated with alkali in the same manner, rebounded by a very weak mechanical action, mixed with the repellent obtained in the rebounding step in the production method of the present invention, and cotton is produced. / DA can obtain a filling cotton exceeding 0.8, but such a filling cotton contains almost no fiber A and contains more short and thick fibers than necessary. , The cushioning property is low and the compression recovery is poor.
ｄＢ／ｄＡが０．５未満の詰用綿も実験室的には得ることはできるが工業的に得ることが困難であり、また、このような詰用綿は柔軟なクッション性に劣り圧縮回復性も不良である。 Cotton for filling with a dB / dA of less than 0.5 can also be obtained in the laboratory, but it is difficult to obtain industrially, and such cotton for filling is inferior in its soft cushioning property and compression recovery. Sex is also poor.
また、例えば、デガムド繊維塊の麻繊維束を強い機械的アクションを加えることなく手作業で一方向に引き揃えて繊維の配向方向と直交する方向に１５０ｍｍを超える切断幅間隔で切断して繊維長１５０ｍｍ以上の繊維を多く含む繊維群を得て、同様にアルカリ処理し、極めて弱い機械的アクションにより反毛と製綿を行えば、ｄＡが８ｄｔｅｘ以上の詰用綿を得ることが不可能ではないが、このような繊維群は、繊維長１５０ｍｍ以上の繊維の含有比率が１５重量％を越えて過大なためカードでのトラブルが多いので極めて生産性が悪く、また、繊維長１５０ｍｍ以上の繊維を過大に含む詰用綿は圧縮率が低く柔軟なクッション性に劣り、また、圧縮回復性も不良となる。 In addition, for example, a hemp fiber bundle of degummed fiber lump is manually aligned without applying a strong mechanical action, and is cut at a cutting width interval exceeding 150 mm in a direction perpendicular to the fiber orientation direction to obtain a fiber length. It is not impossible to obtain a filling cotton having a dA of 8 dtex or more if a fiber group containing a large amount of fibers of 150 mm or more is obtained, treated with alkali in the same manner, and repelled and made with very weak mechanical action. However, in such a fiber group, since the content ratio of fibers having a fiber length of 150 mm or more exceeds 15% by weight, there are many troubles with the card, so the productivity is extremely poor. Excessive filling cotton has a low compression rate and is inferior in soft cushioning properties, and also has poor compression recovery.
さらに、例えば、デガムド繊維塊の麻繊維束を一方向に引き揃えてスライバ状にして、例えばパーロックマシンのような牽切機で比較的長い牽切ゲージで牽切すれば、繊維長１５０ｍｍ以上の繊維を適度に含む繊維群を得ることができるが、このような従来方式では牽切により繊維が繊維軸方向に割れる現象が生じて全体的に細繊度化する傾向にある。あるいは、牽切により繊維の端部が繊維軸方向に割れ目が生じてその後の反毛工程における機械的アクションや、製綿工程におけるカーディングにおける機械的アクションによりこの割れ目から繊維の割れが進行して細繊度化する傾向にある。このため、ｄＡが８ｄｔｅｘ以上である詰用綿を得ることが難しい。 Furthermore, for example, if the hemp fiber bundle of degummed fiber lump is aligned in one direction and made into a sliver, for example, if checked with a relatively long check gauge with a check machine such as a perlock machine, the fiber length is 150 mm or more. Although a fiber group containing moderate fibers can be obtained, in such a conventional method, there is a tendency that the fiber breaks in the fiber axis direction due to the check, and the overall fineness tends to be reduced. Alternatively, the end of the fiber is cracked in the fiber axis direction due to the check, and the fiber breaks off from this crack due to the mechanical action in the subsequent lapping process or the carding in the cotton making process. It tends to be finer. For this reason, it is difficult to obtain a filling cotton having a dA of 8 dtex or more.
また、本発明の詰用綿は、平均繊維長が３０ｍｍ未満であると、かさだか性に劣り、圧縮率が低く柔軟なクッション性に劣り、また、圧縮回復性も不良となる。また、詰用綿の平均繊維長が６０ｍｍを超えて繊維Ａの比率が５〜１５重量％である詰用綿を得ることは、極めて弱い機械的アクションにより反毛と製綿を行う工程を伴なうので、生産性が低く実用的でない。 Further, if the average fiber length is less than 30 mm, the filling cotton of the present invention is inferior in bulkiness, inferior in cushioning property with a low compression rate and in soft compression property, and in compression recovery. In addition, obtaining a filling cotton in which the average fiber length of the filling cotton exceeds 60 mm and the ratio of the fiber A is 5 to 15% by weight is accompanied by a process of repelling and cotton making by extremely weak mechanical action. Therefore, productivity is low and it is not practical.
［実施例１］
原料の植物麻の茎を通常の精錬、漂白、軟繊工程により加工して得られたデガムド繊維塊を、麻繊維束を意識的に引き延ばしたり特定の方向に向けるような操作を加えることなく、手作業で無作為に並べて、麻繊維束の面方向配向度が小さく、みかけ厚さ２ｃｍ、幅１５ｃｍの長尺帯状の麻シートを得た。麻シートは、９０重量％以上の麻繊維束と、その他の麻繊維からなるものであった。その他の麻繊維は、精錬、漂白、軟繊工程で麻繊維束から分離して繊維塊中に存在している繊維である。麻シート中の麻繊維束の面方向配向度は、０．０５であった。
[Example 1]
Without adding operations such as intentionally stretching the hemp fiber bundle or directing the degummed fiber lump obtained by processing the plant hemp stalk of raw material by ordinary refining, bleaching, soft fiber process, Randomly arranged by hand, a strip-shaped hemp sheet having a small plane orientation degree of hemp fiber bundles, an apparent thickness of 2 cm, and a width of 15 cm was obtained. The hemp sheet was composed of 90% by weight or more of hemp fiber bundles and other hemp fibers. The other hemp fibers are fibers that are separated from the hemp fiber bundle in the refining, bleaching, and soft fiber processes and exist in the fiber mass. The plane direction orientation degree of the hemp fiber bundle in the hemp sheet was 0.05.
面方向配向度は、以下の手順で測定した。
（１）麻シートの上面において麻シートの幅方向に基準線を設定した。
（２）基準線を横切る目視できる麻繊維束すべてについて麻繊維束と基準方向とのなす角度θを測定した。
（３）面方向配向度ｆ（ヘルマンの配向度）を次式で求めた。
ｆ＝（３＜ＣＯＳ２θ＞−１）／２
ここで、＜ＣＯＳ２θ＞は測定した全ての麻繊維束に関するＣＯＳ２θの平均値を示す。
The degree of orientation in the plane direction was measured by the following procedure.
(1) A reference line was set in the width direction of the hemp sheet on the upper surface of the hemp sheet.
(2) The angle θ formed by the hemp fiber bundle and the reference direction was measured for all hemp fiber bundles that can be visually observed across the reference line.
(3) The plane direction orientation degree f (Herman orientation degree) was determined by the following equation.
f = (3 <COS 2 θ> −1) / 2
Here, <COS 2 θ> represents an average value of COS 2 θ for all measured hemp fiber bundles.
また、麻シートからランダムに選択した２０個の麻繊維束（総重量は９．０ｇ）中の１８個（総重量は８．５ｇ）は、一端と他端との距離が長さの１０％以上かつ６０％以下であるように湾曲していた。 Moreover, 18 pieces (total weight is 8.5 g) out of 20 hemp fiber bundles (total weight is 9.0 g) randomly selected from the hemp sheet are 10% of the distance between one end and the other end. It was curving so that it was above and below 60%.
この麻シートを、幅方向に平行な切断線で間隔９０ｍｍで順次切断して繊維集合体を得た。この繊維集合体をボーメ度２９度のアルカリ処理液で処理して麻繊維にクリンプを発現させた。次いで、アルカリ処理液で処理された繊維集合体を、反毛機で反毛し開綿（開繊）した。反毛条件は通常のコットン綿の反毛条件より弱くし、回転刃部の回転数を通常のコットン綿の反毛の場合の７０％として反毛機を２回通しした。次いで、反毛された繊維集合体を通常のローラーカード製綿機でカーディングして繊維を積層し、詰用綿を得た。製綿機のシリンダ回転数は３００ｒｐｍとした。 This hemp sheet was sequentially cut at a spacing of 90 mm along a cutting line parallel to the width direction to obtain a fiber assembly. This fiber assembly was treated with an alkaline treatment solution having a Baume degree of 29 degrees to cause crimp to appear on the hemp fibers. Next, the fiber assembly treated with the alkali treatment liquid was bristled and opened (opened) with a burr machine. The fluffing conditions were made weaker than those of normal cotton cotton, and the rotation speed of the rotary blade was 70% of the normal cotton cotton fluffing. Subsequently, the fiber aggregate which was bristled was carded with a normal roller card cotton machine to laminate the fibers, and cotton for filling was obtained. The cylinder rotation speed of the cotton maker was 300 rpm.
［比較例１］
デガムド繊維塊を原料とし、通常の麻紡績工程で練条、コーミングして得られた麻紡績用の麻トップを実施例と同じ条件でアルカリ処理してクリンプを発現させたのち、切断長９０ｍｍに設定した切断機で切断して実施例と同様に製綿機でカーディングして繊維を積層し、詰用綿を得た。
[Comparative Example 1]
A hemp top for hemp spinning obtained from degummed fiber lump, prepared by kneading and combing in the normal hemp spinning process, was subjected to alkali treatment under the same conditions as in the examples, and crimped to 90 mm in cutting length Cut with a set cutting machine and carded with a cotton machine in the same manner as in the example to laminate the fibers to obtain cotton for filling.
［比較例２］
デガムド繊維塊を原料とし、通常の麻紡績工程で練条、コーミングして得られた麻紡績用の麻トップを実施例と同じ条件でアルカリ処理してクリンプを発現させたのち、実施例と同様に製綿機でカーディングして繊維を積層し、詰用綿を得た。
[Comparative Example 2]
A hemp top for hemp spinning obtained by degummed fiber mass as raw material, and kneaded and combed in a normal hemp spinning process is subjected to alkali treatment under the same conditions as in the example, and then crimped, as in the example. And carding with a cotton machine to laminate the fibers to obtain cotton for filling.
［実施例１、比較例１，２で得られた詰用綿の比較］
実施例１、比較例１，２で得られた詰用綿の繊維長分布をそれぞれ図２，３，４のステープルダイアグラム（ソータ法）で示す。図の縦軸は繊維長（ｍｍ）、横軸はステープルダイアグラムの作成手順に従って長さ順に配列された繊維列における、当該長さの繊維の、最長繊維が位置する繊維列の左端からの距離の相対値を示す。
[Comparison of cotton for filling obtained in Example 1 and Comparative Examples 1 and 2]
The fiber length distribution of the filling cotton obtained in Example 1 and Comparative Examples 1 and 2 is shown by staple diagrams (sorter method) in FIGS. In the figure, the vertical axis is the fiber length (mm), and the horizontal axis is the distance from the left end of the fiber row in which the longest fiber is located in the fiber row arranged in the length order according to the staple diagram creation procedure. Indicates a relative value.
実施例１、比較例１，２で得られた詰用綿の平均繊維長、繊維Ａの比率、繊維Ａの平均見掛繊度ｄＡ、繊維Ｂの平均見掛繊度ｄＢ、ｄＡに対するｄＢの比率（ｄＢ／ｄＡ）を表１に示す。平均繊維長、ＪＩＳ Ｌ １０１５に準拠して測定した。平均繊維長はステープルダイアグラムから求めた。平均見掛繊度は、ステープルダイアグラム作成手順に従って配列した繊維列からサンプリングして見掛繊度を測定して求めた。見掛繊度はＪＩＳ Ｌ １０１５に準拠して測定した。 The average fiber length of the filling cotton obtained in Example 1 and Comparative Examples 1 and 2, the ratio of fiber A, the average apparent fineness dA of fiber A, the average apparent fineness dB of fiber B, and the ratio of dB to dA ( dB / dA) is shown in Table 1. The average fiber length was measured according to JIS L 1015. The average fiber length was determined from the staple diagram. The average apparent fineness was obtained by sampling the fiber rows arranged according to the staple diagram creation procedure and measuring the apparent fineness. The apparent fineness was measured according to JIS L 1015.
［実施例２］
実施例１で得られた、アルカリ処理液で処理された繊維集合体９５重量部と、ポリエステルファイバー（７．８ｄｔｅｘ×５１ｍｍ）５重量部とを混合し実施例１と同様にして反毛機で反毛し、実施例１と同様にカーディングして繊維を積層し、詰用綿を得た。
[Example 2]
95 parts by weight of the fiber assembly treated with the alkali treatment liquid obtained in Example 1 and 5 parts by weight of polyester fiber (7.8 dtex × 51 mm) were mixed and treated in the same manner as in Example 1 with a repelling machine. Then, the fiber was laminated by carding in the same manner as in Example 1 to obtain cotton for filling.
［実施例１，２、比較例１，２で得られた詰用綿の比較］
実施例１，２、比較例１，２で得られた詰用綿の比容積（かさ高性）、圧縮率、回復率（圧縮回復率）を表２に示す。これらの測定はＪＩＳ Ｌ ２００１ 綿ふとん綿試験方法に準拠し、２０℃、６５％ＲＨで実施した。
[Comparison of filling cotton obtained in Examples 1 and 2 and Comparative Examples 1 and 2]
Table 2 shows the specific volume (bulkyness), compression rate, and recovery rate (compression recovery rate) of the filling cotton obtained in Examples 1 and 2 and Comparative Examples 1 and 2. These measurements were performed at 20 ° C. and 65% RH in accordance with the JIS L 2001 Cotton Futon Test Method.
表２から明らかなように、実施例１，２の詰用綿は比較例１，２の詰用綿に比べて、比容積と圧縮率はほぼ同等であり、圧縮に対する回復率が良好である。すなわち、詰用綿として良好な圧縮回復性を有する。 As is apparent from Table 2, the filling cottons of Examples 1 and 2 have substantially the same specific volume and compression rate as the filling cottons of Comparative Examples 1 and 2, and the compression recovery rate is good. . That is, it has good compression recovery as a filling cotton.
本発明の詰用綿は、中綿として用いられるクッション材として、寝具類、家具類、インテリア用材、衣料の分野に広く適用される。 The filling cotton of the present invention is widely applied in the fields of bedding, furniture, interior materials, and clothing as a cushioning material used as batting.
Claims (2)
前記麻繊維は、
平均繊維長が３０〜６０ｍｍであり、
繊維長が１５０ｍｍ以上の繊維Ａを５〜１５重量％含み、
繊維Ａの平均見掛繊度ｄＡが８〜１５ｄｔｅｘであり、
ｄＡに対する、前記麻繊維中の繊維長４０〜８０ｍｍの繊維Ｂの平均見掛繊度ｄＢの比率（ｄＢ／ｄＡ）が０．５〜０．８である詰用綿。 A cotton for filling containing 90% by weight or more of hemp fibers in which crimp has been developed by alkali treatment,
The hemp fiber is
The average fiber length is 30-60 mm,
Including 5 to 15% by weight of fiber A having a fiber length of 150 mm or more,
The average apparent fineness dA of the fiber A is 8 to 15 dtex,
Cotton for filling in which the ratio (dB / dA) of the average apparent fineness dB of the fiber B having a fiber length of 40 to 80 mm in the hemp fiber to dA is 0.5 to 0.8.
複数の麻繊維束を主成分とする麻シートを準備する麻シート準備工程、
該麻シートを、７０〜１２０ｍｍの間隔で切断して繊維集合体となす切断工程、
該繊維集合体をアルカリ処理して麻繊維にクリンプを発現させるアルカリ処理工程、
アルカリ処理された該繊維集合体を反毛する反毛工程、
反毛された該繊維集合体をカーディングして繊維を積層する製綿工程
を含み、
前記麻シート中の前記麻繊維束の面方向配向度が０．２以下で、かつ、前記麻シートは一端と他端との距離が長さの７０％以下であるように湾曲した状態の前記麻繊維束を５０重量％以上含み、
各前記麻繊維束は、一本の植物麻が精錬されてなり、該麻繊維束中で該植物麻中の繊維の集合状態がほぼ保たれているものである詰用綿の製造方法。 It is a manufacturing method of the cotton for filling of Claim 1, Comprising:
A hemp sheet preparation process for preparing a hemp sheet mainly composed of a plurality of hemp fiber bundles;
A cutting step in which the hemp sheet is cut at intervals of 70 to 120 mm to form a fiber assembly;
An alkali treatment step for expressing the crimp on the hemp fiber by alkali treatment of the fiber assembly;
An anti-warping process for anti-hairing the alkali-treated fiber assembly;
Including a cotton-making process of carding the fiber assembly that has been bristled and laminating the fibers;
The surface orientation degree of the hemp fiber bundle in the hemp sheet is 0.2 or less, and the hemp sheet is curved so that the distance between one end and the other end is 70% or less of the length. Contains 50% or more of hemp fiber bundles,
Each of the hemp fiber bundles is a method for producing cotton for filling, wherein a single plant hemp is refined, and the aggregated state of the fibers in the plant hemp is substantially maintained in the hemp fiber bundle.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10292253A (en) * | 1997-04-15 | 1998-11-04 | Tokyo Metropolis | Nonwoven fabric comprising flame retardation-treated ramie and flame-retardant conjugated fiber structure using the same as mat filler |
| JP2010189800A (en) * | 2009-02-18 | 2010-09-02 | Shiga Asa Kogyo Kk | Ramie cotton and method for producing the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH10292253A (en) * | 1997-04-15 | 1998-11-04 | Tokyo Metropolis | Nonwoven fabric comprising flame retardation-treated ramie and flame-retardant conjugated fiber structure using the same as mat filler |
| JP2010189800A (en) * | 2009-02-18 | 2010-09-02 | Shiga Asa Kogyo Kk | Ramie cotton and method for producing the same |
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