CN101629325B - Spinning apparatus, and apparatus and process for manufacturing nonwoven fabric - Google Patents

Spinning apparatus, and apparatus and process for manufacturing nonwoven fabric Download PDF

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CN101629325B
CN101629325B CN 200910141806 CN200910141806A CN101629325B CN 101629325 B CN101629325 B CN 101629325B CN 200910141806 CN200910141806 CN 200910141806 CN 200910141806 A CN200910141806 A CN 200910141806A CN 101629325 B CN101629325 B CN 101629325B
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liquid
gas
portion
columnar hollow
spinning
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CN 200910141806
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Chinese (zh)
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CN101629325A (en
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天笠隆明
小岛幸夫
村田修一
松林康子
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日本韦琳株式会社
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Priority to JP2008139948A priority Critical patent/JP5294708B2/en
Priority to JP2008-139948 priority
Priority to JP2008154679A priority patent/JP4994312B2/en
Priority to JP2008-154679 priority
Priority to JP2008-204830 priority
Priority to JP2008204830A priority patent/JP5004898B2/en
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Publication of CN101629325A publication Critical patent/CN101629325A/en
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Abstract

The invention provides a spinning apparatus, an apparatus for manufacturing nonwoven fabrics and a process for the same. The spinning apparatus comprises one or more liquid spraying parts for spraying spinning solution; and a gas ejection part for ejecting gas and located at the upstream of the liquid spraying parts. The apparatus satisfies the following conditions: (1) a columnar hollow part for liquid (Hl), wherein the liquid spraying parts are adopted on the end portion of the columnar hollow part (Hl); (2) a columnar hollow part for gas (Hg), wherein the gas ejection part is adopted on the end portion of the columnar hollow part (Hg); (3) a virtual column part for liquid (Hvl) extended from the columnar hollow part for liquid and adjacent to a virtual column part for gas (Hvg) extended from the columnar hollow part for gas (Hg); (4) the central axis of the columnar hollow part for liquid (Hl) being parallel to the central axis of the columnar hollow part for gas (Hg); and (5) only one straight line having the shortest distance between the outer boundary of the cross section of the columnar hollow part for gas (Hg) and the outer boundary of the cross section of the columnar hollow part for liquid (Hl).

Description

纺丝装置、无纺布制备装置和无纺布的制备方法 Spinning apparatus, a nonwoven fabric manufacturing apparatus and a method for preparing a nonwoven fabric

技术领域 FIELD

[0001] 本发明涉及纺丝装置、具备该纺丝装置的无纺布制备装置、以及使用上述无纺布制备装置的无纺布的制备方法。 [0001] The present invention relates to a spinning apparatus, a nonwoven fabric manufacturing apparatus comprising the spinning apparatus, a nonwoven fabric and the nonwoven fabric prepared using the preparation apparatus.

[0002] 构成无纺布的纤维的纤维直径小,则分离性能、液体保持性能、擦拭性能、隐蔽性能、绝缘性能或柔软性等各种性能均优异,因此优选构成无纺布的纤维的纤维直径小。 [0002] The fibers constituting the nonwoven fiber diameter is small, the separation performance, the liquid holding performance of various properties, wiping performance, hiding performance, insulation performance or the like are excellent in flexibility, it is preferable that the fibers constituting the nonwoven fabric small diameter. 已知含有上述纤维直径小的纤维的无纺布的制备方法有所谓的静电纺丝法,该方法是将纺丝液由喷嘴喷出,同时使电场作用于喷出的纺丝液,拉伸纺丝液,使直径变细,然后直接在收集体上收集,制成无纺布。 Prepared by methods known in the nonwoven fabric containing the fiber with a small diameter fibers called electrostatic spinning method, the spinning solution is discharged from the nozzle, while the electric field applied to the spinning liquid discharged stretching spinning liquid, so that the diameter becomes small, then collected on collecting directly, a nonwoven fabric. 根据该静电纺丝法,可以制备含有平均纤维直径Ium以下的纤维的无纺布。 According to the electrospinning, a nonwoven fabric can be prepared comprising the following Ium average fiber diameter of fibers. 该静电纺丝法是使电场作用于纺丝液,因此必须对喷嘴或收集体施加高电压,因此不仅装置复杂,而且在能源方面很浪费。 The electrospinning method is a method that the electric field applied to the spinning solution, it is necessary to apply a high voltage to the collecting or nozzle, thus not only complicated apparatus, and very wasteful in terms of energy. [0003] 作为可以改善上述问题的纺丝装置,人们发明了图2所示的装置:“通过使用压缩气流形成纳米纤维的无纺垫的装置,该装置包含设置了平行间隔的第I (12)、第2 (22)和第3(32)构件,分别具有供给端部(14、24、34)和相对的出口端部(16、26、36)。第2构件(22)与第I构件(12)相邻。第2构件(22)的出口端部(26)伸长至超过第I构件(12)的出口端部(16)。第I (12)和第2 (22)构件隔出第I供给狭缝(18)。第3构件(32)位于与第2构件(22)相对的一侧、与第I构件(12)相邻。第1(12)和第3(32)构件隔出第I气体狭缝(38),第I (12)、第2 (22)和第3(32)构件的出口端部(16、26、36)隔出喷气空间(20)。也包含了通过使用压缩气流,形成纳米纤维的无纺垫的方法”(专利文献I)。 [0003] As a spinning apparatus can improve the above problems, the inventors of the apparatus shown in Figure 2: "By using compressed gas stream forming a nonwoven mat of nanofibers apparatus, the apparatus comprising a first set of parallel spaced I (12 ), second (22) and third (32) members, each having a feed end (14,24,34) and an opposite outlet end (16,26,36). the second member (22) and the second I member (12) adjacent to the second member (22) of the outlet end portion (26) to the elongated member exceeds the I (12) of the outlet end portion (16). I, (12) and second (22) member I separated out of the supply slit (18). (32) located at the second member (22) opposite to the side of the first member 3, adjacent to the first member I (12). the first (12) and third (32 ) I of the gas separator member slit (38), section I (12 is), the second (22) and third (32) outlet end (16,26,36) a spacer member jet space (20). the method also includes a nonwoven mat by using a stream of compressed air, forming nanofibers "(Patent Document I). 该装置无需施加高电压,因此可以解决上述问题。 The device does not need high voltage is applied, the above problems can be solved. 但是,该装置中,将平板状的第I、第2和第3构件平行设置,因此压缩气体作用于片状的纺丝液,难以形成纤维形状,较多含有液滴,因此,即使形成纤维形状也只能形成粗的纤维。 However, this apparatus, the plate-shaped first I, second and third member are arranged in parallel, so the compressed gas acting on the sheet-like spinning liquid, it is difficult to form a fiber shape, containing a large droplet, and therefore, even when the fibers are formed a shape formed only of coarse fiber.

[0004] 作为同样的纺丝装置,有人提出了“一种使用压缩气体的纳米纤维制备装置,该装置具备中心管、与中心管呈同心状并且分开设置的第I供给管、与第I供给管呈同心状且分开设置的中间气体管、与中间气体管呈同心状且分开设置的第2供给管,中心管与第I供给管形成第I环状柱,中间气体管与第I供给管形成第2环状柱,中间气体管与第2供给管形成第2环状柱,第I喷气空间在中心管和第I供给管的下游一侧端部形成,第2喷气空间在中间气体管和第2供给管的下游一侧端部形成。”(专利文献2)。 [0004] As a similar spinning apparatus, there has been proposed supply pipe I, "an nanofibers using the compressed gas, the device comprising a central tube, concentrically with the central pipe and provided separately, and supplied to the first I tube positioned concentrically around and separately disposed intermediate gas pipe, with the gas tube positioned concentrically around and separately provided in the second supply pipe, the first pipe forming the first supply pipe I I annular column, the middle gas tube and second supply tube I forming a second annular column, the middle gas tube and second supply tube form a second annular column I of jet space is formed downstream side end portion of the central tube and the second supply pipe I, a space in the middle of the second gas jet pipe and a second side portion of the downstream end of the supply pipe. "(Patent Document 2) is formed. 该制备装置也无需施加高电压,因此可以解决上述问题。 The apparatus also prepared without applying a high voltage, it is possible to solve the above problems. 但是,该装置中,喷气作用于呈环状喷出的纺丝液,因此纺丝不稳定,难以形成纤维形状,较多含有液滴。 However, this device, acting as a jet ring spinning solution discharged, thus spinning is unstable, difficult to form a fiber shape, containing a large droplets.

[0005] 现有技术文献 [0005] The prior art documents

[0006] 专利文献 [0006] Patent Document

[0007] 专利文献I :日本特表2005-515316号公报(摘要、表I等) [0007] Patent Document I: Japanese Unexamined Patent Publication No. 2005-515316 (Abstract, etc. Table I)

[0008] 专利文献2 :美国专利第6520425号公报(摘要,图2等) [0008] Patent Document 2: U.S. Patent Publication No. 6520425 (Abstract, FIG. 2, etc.)

发明内容 SUMMARY

[0009] 本发明针对上述问题而设,其目的在于提供为简单的装置、可以制备含有纤维直径小的纤维的无纺布的纺丝装置,以及具备该纺丝装置的无纺布制备装置、以及使用上述无纺布制备装置的无纺布的制备方法。 [0009] The present invention addresses the above problems is provided, and its object is to provide a simple device, the nonwoven fabric fiber spinning apparatus comprising a small diameter fibers can be prepared, and the nonwoven fabric manufacturing apparatus comprising the spinning apparatus, and a method for preparing a nonwoven fabric using the nonwoven fabric manufacturing apparatus.

[0010] 本发明的目的在于提供为简单、能耗优异的装置、可以生产性良好地制备含有纤维直径小的纤维、均匀质地的无纺布的纺丝装置,以及具备该纺丝装置的无纺布制备装置。 [0010] The object of the present invention to provide a simple, the apparatus is excellent in energy consumption, can be prepared containing a good productivity a small fiber diameter, a uniform nonwoven fabric texture spinning apparatus, the spinning apparatus and includes no nonwoven fabric manufacturing apparatus.

[0011] 本发明进一步提供可以以小的能耗、生产性良好地制备纤维直径或树脂组成等不同的2种以上纤维直径小的纤维均匀混合、质地优异的无纺布的方法。 [0011] The present invention further provides a small power consumption may be a fiber diameter, or the like resin of two or more different fibers uniformly mixed small diameter fibers, a nonwoven fabric excellent in texture process was prepared with good productivity. 还涉及可制备较薄的无纺布乃至较厚的无纺布的方法。 The method further relates to a nonwoven fabric can be made thinner and the thicker non-woven fabric.

[0012] 本发明涉及以下内容: [0012] The present invention relates to the following:

[0013] [I]纺丝装置,该纺丝装置具有I处以上可喷出纺丝液的喷液部,和I处位于上述任意喷液部上游一侧、可喷出气体的喷气部,该纺丝装置满足以下条件: [0013] [I] a spinning device, the spinning liquid discharge device having the above portion I may be discharged at a spinning solution, and I located at the upstream side of any liquid ejecting portion capable of ejecting a gas jet portion, the spinning apparatus satisfies the following conditions:

[0014] (I)具有以喷液部作为端部的液体用柱状中空部(Hl); [0014] (I) in a liquid ejecting portion having an end portion with a liquid as a hollow cylindrical portion (on Hl);

[0015] (2)具有以喷气部作为端部的气体用柱状中空部(Hg); [0015] (2) has a gas jet section as the end portion of the columnar hollow portion (Hg);

[0016] (3)将液体用柱状中空部(Hl)延长而成的液体假想柱状部(Hvl)与将气体用柱状中空部(Hg)延长而成的气体假想柱状部(Hvg)相接近; [0016] (3) the liquid which is extended from the columnar hollow portion (on Hl) virtual column for liquid (HVL) and virtual column for gas (Hvg) gas extended from the columnar hollow portion (Hg) close;

[0017] (4)液体用柱状中空部(Hl)的喷出方向中心轴与气体用柱状中空部(Hg)的喷出方向中心轴平行; [0017] The ejection direction of the central axis (4) with a liquid discharge direction of the central axis of the columnar hollow for gas (on Hl) of the columnar hollow portion (Hg) in parallel;

[0018] (5)用与气体用柱状中空部(Hg)的中心轴垂直的平面切断时,只可引一条气体用柱状中空部(Hg)的切面的外周和液体用柱状中空部(Hl)的切面的外周的距离最短的直线。 [0018] (5) When a plane with the central axis of the columnar hollow for gas portion (Hg) perpendicular to the cutting, only cited a gas section of an outer periphery and a liquid columnar hollow portion (Hg) of the columnar hollow portion (on Hl) the section of the outer periphery of the shortest distance of a straight line.

[0019] [2] [I]所述的纺丝装置,其中,喷液部为I处。 [0019] [2] [I] of the spinning apparatus, wherein the liquid discharge portion is I.

[0020] [3]无纺布的制备装置,其特征在于:除[2]所述的纺丝装置之外,还具备纤维的收集体。 [0020] [3] of the nonwoven fabric manufacturing apparatus, wherein: in addition to the spinning apparatus [2], further comprising collecting fibers.

[0021] [4]无纺布的制备方法,其特征在于:使用[3]所述的无纺布制备装置,由纺丝装置的喷气部喷出流速IOOm/秒以上的气体。 Preparation [0021] [4] a nonwoven fabric, wherein: using [3] of the nonwoven fabric manufacturing apparatus, a portion of the jet spinning apparatus IOOm / sec or more gas discharge flow rate.

[0022] [5] [I]所述的纺丝装置,其中,喷液部为2处以上,满足下述条件: [0022] [5] [I] of the spinning apparatus, wherein the liquid discharge portion is 2 or more, satisfy the following condition:

[0023] (I)分别具有以各喷液部作为端部的液体用柱状中空部; [0023] (I), respectively, each having a liquid ejecting portion of the liquid end of the columnar hollow portions;

[0024] (2)具有以喷气部作为端部的气体用柱状中空部; [0024] (2) has a gas jet section as the end portion of the columnar hollow portions;

[0025] (3)将液体用柱状中空部延长而成的各液体假想柱状部与将气体用柱状中空部延长而成的气体假想柱状部分别相接近; [0025] imaginary cylindrical portion (3) extended from the liquid portion of each columnar hollow for liquid and the virtual column for gas is extended from the columnar hollow for gas not close;

[0026] (4)液体用柱状中空部的各喷出方向中心轴与气体用柱状中空部的喷出方向中心轴分别平行; [0026] (4) with the respective liquid ejection direction of the central axis of the columnar hollow for gas ejection direction with the columnar hollow portions are parallel to the axis;

[0027] (5)用垂直于气体用柱状中空部中心轴的平面切断时,在任何的组合下,只可以引一条气体用柱状中空部的切面的外周和液体用柱状中空部的切面的外周的距离最短的线。 [0027] (5) when the cutting plane of the columnar hollow portion central axis is perpendicular to the gas, in any combination, can only lead a gas section of an outer periphery and a liquid columnar hollow portion of an outer periphery of a section of the columnar hollow portion the shortest distance line.

[0028] [6] [5]所述的纺丝装置,其特征在于:各喷液部的外形为圆形。 [0028] [6] [5] of the spinning apparatus, wherein: the shape of each liquid discharge portion is circular.

[0029] [7] [5]或[6]所述的纺丝装置,其特征在于:喷气部的外形为圆形。 [0029] [7] [5] or [6] of the spinning apparatus, wherein: a circular outer shape portion jet.

[0030] [8]无纺布制备装置,其特征在于:该无纺布制备装置除[5]_[7]中任一项所述的纺丝装置之外,还具备纤维的收集体。 [0030] [8] a nonwoven fabric manufacturing apparatus, wherein: the nonwoven fabric manufacturing apparatus in addition to a spinning apparatus according to any one of [5] _ [7], further comprising collecting fibers.

[0031] [9]无纺布的制备方法,其特征在于:该制备方法是使用[8]所述的无纺布制备装置。 [0031] [9] The method of preparing a nonwoven fabric, wherein: the preparing method using a nonwoven fabric manufacturing apparatus according to [8]. [0032] [10]无纺布的制备方法,其特征在于:使用[8]所述的无纺布制备装置,以2种以上的喷出条件,由上述喷液部喷出纺丝液,制成纤维,汇集在收集体上。 [0032] [10] The method of preparing a nonwoven fabric, wherein: using a nonwoven fabric manufacturing apparatus according to [8], two or more kinds of discharge conditions, by the spinning liquid discharged liquid discharge portion, made into fibers, collected on the collecting body.

[0033] [11] [10]所述的无纺布的制备方法,其特征在于:喷出浓度不同的纺丝液。 [0033] [11] [10] The method of preparing a nonwoven fabric, comprising: discharging a spinning solution in different concentrations.

[0034] [12] [10]所述的无纺布的制备方法,其特征在于:喷出聚合物不同的纺丝液。 [0034] [12] [10] The method of preparing a nonwoven fabric, comprising: discharging a spinning different polymer solution.

[0035] [13] [10]所述的无纺布的制备方法,其特征在于:喷出溶剂不同的纺丝液。 [0035] [13] [10] The method of preparing a nonwoven fabric, comprising: discharging a spinning solution in different solvents.

[0036] 本发明的[I]所述的纺丝装置是简单的装置,是可制备含有纤维直径小的纤维的无纺布、能耗有优势的装置。 [0036] present invention [I] of the spinning apparatus is simple device, a nonwoven fabric is prepared containing the small fiber diameter of the fibers, the device has the advantage of energy.

[0037] 本发明的[2]所述的纺丝装置是具有“可喷出纺丝液的喷液部,和位于上述喷液部上游一侧、可喷出气体的喷气部的,满足下述条件的纺丝装置。(I)具有以喷液部为端部的液体用柱状中空部(Hl) ;(2)具有以喷气部为端部的气体用柱状中空部(Hg) ;(3)将液体用柱状中空部(Hl)延长而成的液体假想柱状部(Hvl)和将气体用柱状中空部(Hg)延长而成的气体假想柱状部(Hvg)相接近;(4)液体用柱状中空部(Hl)的喷出方向中心轴与气体用柱状中空部(Hg)的喷出方向中心轴平行;(5)用与气体用柱状中空部(Hg)的中心轴垂直的平面切断时,只可引一条气体用柱状中空部(Hg)的切面的外周与液体用柱状中空部(Hl)的切面的外周的距离最短的直线”。 [0037] The present invention [2] of the spinning apparatus having a liquid ejecting portion "may be discharged spinning solution, and the liquid located in the upstream side of the discharge portion for discharging gas jet portion, satisfying the the spinning apparatus described conditions (I) having a liquid ejecting portion of the liquid to an end portion of the hollow columnar portion (Hl); (2) has a gas jet portion of the columnar hollow end portion (Hg); (3 ) the virtual column for liquid in the liquid (HVL) is extended from the columnar hollow portion (on Hl) and virtual column for gas (Hvg) gas extended from the columnar hollow portion (Hg) close; (4) with a liquid (5) with gas central plane perpendicular to the axis of the hollow cylindrical portion (Hg) by cutting; columnar hollow portion (on Hl) of the gas discharging direction of the central axis parallel to the central axis of the ejection direction of the columnar hollow portion (Hg) of , may be cited only with a section of the outer periphery of the columnar hollow for liquid (Hg) of the shortest distance of a straight line with the outer periphery of the columnar hollow section portion (on Hl) of a "gas. 该纺丝装置中,由喷液部喷出的纺丝液与由喷气部喷出的气体接近并平行,并且气体和伴随气流所产生的剪切力呈一条直线状作用于纺丝液上,因此可以纺丝呈细直径的纤维。 The spinning apparatus, the liquid discharged from the discharge portion of the spinning liquid discharged by the gas jet unit in parallel and close, and the gas and the accompanying airstream shear forces generated as a single-linearly exerted on the spinning liquid, Thus the fiber can be spun as a fine diameter. 另外,无需对纺丝液施加高电压,也无需对纺丝液和气体进行加热,因此是简单且能耗有优势的装置。 Further, no need to apply a high voltage to the spinning solution, there is no need for heating the spinning liquid and a gas, the energy consumption is therefore simple and advantageous means.

[0038] 本发明的[3]所述的无纺布制备装置具备收集体,因此可收集细直径的纤维,制备无纺布。 [0038] present invention [3] of the nonwoven fabric manufacturing apparatus includes collecting, thus collecting fine fiber diameter, a nonwoven fabric prepared.

[0039] 本发明的[4]所述的制备方法中,喷出流速IOOm/秒以上的气体,则可以抑制液滴的生成,可以高效制备含有细直径纤维的无纺布。 The method of preparation according to [0039] [4] of the present invention, IOOm / sec or more gas discharge flow rate of the droplet generation can be suppressed, a nonwoven fabric containing fibers of small diameter can be efficiently prepared.

[0040] 本发明的[5]所述的纺丝装置是:“具有2处以上可喷出纺丝液的喷液部,和I处位于上述任意喷液部上游一侧、可喷出气体的喷气部,并满足以下条件的纺丝装置。(I)分别具有以各喷液部作为端部的液体用柱状中空部;(2)具有以喷气部作为端部的气体用柱状中空部;(3)将液体用柱状中空部延长而成的各液体假想柱状部与将气体用柱状中空部延长而成的气体假想柱状部分别相接近;(4)液体用柱状中空部的各喷出方向中心轴与气体用柱状中空部的喷出方向中心轴分别平行;(5)用与气体用柱状中空部的中心轴垂直的平面切断时,在任何组合中,只可引一条气体用柱状中空部的切面的外周和液体用柱状中空部的切面的外周的距离最短的直线。”。 [0040] present invention [5] The spinning apparatus is: "liquid ejecting unit having a spinning liquid may be discharged, at least I and 2 positioned at the upstream side of any liquid discharge portion, the gas may be discharged . jet portion, and satisfies the following conditions spinning apparatus (I) are liquid ejecting portions each having an end portion with a liquid as a hollow cylindrical portion; (2) has a gas jet section as the end portion of the columnar hollow portions; (3) an imaginary cylindrical portion extended from the liquid portion of each columnar hollow for liquid and the virtual column for gas is extended from the columnar hollow for gas close respectively; (4) in each ejection direction of the columnar hollow portion of the liquid parallel to the center axis of the gas discharge direction respectively of the central axis of the columnar hollow portion; (5) with the cutting plane of the center of the columnar hollow for gas portion perpendicular to the axis, in any combination, may be cited only a columnar hollow for gas the outer periphery of the cut surface and the liquid from the cut surface with the outer periphery of the columnar hollow for the shortest straight line. ". 该纺丝装置中,由各喷液部喷出的纺丝液和由喷气部喷出的气体分别接近,分别平行,并且气体和伴随气流所产生的剪切力分别呈一条直线状作用于各纺丝液,因此可以纺丝细直径的纤维。 The spinning apparatus, each liquid discharge portion and discharging liquid discharged from the spinning jet of the gas are close to parallel, respectively, and a shearing force generated gas and the accompanying airstream single-linearly, respectively, acting on each spinning solution, fiber spinning can be of small diameter. 无需对各纺丝液施加高电压,因此是简单且能耗有优势的装置。 Without applying a high voltage to each spinning liquid, and therefore it is simple and advantageous energy means. 并且,可以将由2处以上的喷液部喷出的纺丝液用I处喷气部喷出的气体制成纤维,因此可减少气体量,可以抑制纤维的飞散,可生产性良好地制备质地均匀的无纺布。 Further, the spinning solution can be discharged by the jet with the I portion of the discharge gas at two or more liquid ejecting portion into a fiber, thus reducing the amount of gas, scattering of fibers can be suppressed, a uniform texture with good producibility prepared the non-woven fabric. 可以减少气体量、无需使吸引装置大型化,由此在能耗方面也有优势。 Gas amount can be reduced, without making the size of the suction device, whereby the energy consumption also has advantages.

[0041] 本发明的[6]所述的纺丝装置中,各喷液部的外形为圆形,因此由喷气部喷出的气体和伴随气流所产生的剪切力容易分别呈一条直线状作用于由各喷液部喷出的圆柱状的纺丝液上,容易纺丝成细直径的纤维。 [0041] present invention [6] of the spinning apparatus, the shape of each liquid discharge portion is circular, thus a shearing force the jet ejected by the gas and the accompanying airstream portion that are easily produced in a straight line shape acting on cylindrical spinning solution discharged from each liquid ejecting portion, readily spun into small diameter fibers.

[0042] 本发明的[7]所述的纺丝装置中,喷气部的外形为圆形,因此,相对于喷气部无论怎样设置各喷液部,也可以使由喷气部喷出的气体和伴随气流所产生的剪切力分别呈一条直线状作用于由各喷液部喷出的各纺丝液上,容易纺丝成细直径的纤维。 [0042] present invention [7] of the spinning apparatus, the jet portion of the outer shape is circular, and therefore, no matter what portion of the jet with respect to each liquid ejecting portion is provided may be the discharge of a gas jet portion and airflow generated accompanying shear forces acting respectively single-linearly on each fiber on each spinning liquid discharged liquid ejecting portions, readily spun into small diameter.

[0043] 本发明的[8]所述的无纺布纺纱装置具备纤维的收集体,因此可以将纤维聚汇集,生产性良好地制备无纺布。 [0043] present invention [8] The spinning device includes a nonwoven fabric fiber collecting, pooling can be polyethylene fibers, nonwoven fabric prepared with good productivity.

[0044] 本发明的[8]或[9]的制备方法是由各喷液部喷出的纺丝液和由喷气部喷出的气体分别接近,分别平行,并且气体和伴随气流所产生的剪切力分别呈一条直线状作用于各纺丝液,因此可以纺丝细直径的纤维。 [0044] [8] or can be prepared according to the present invention [9] The method is discharged by the liquid discharge portion and a spinning liquid discharged by the gas jet portions are close, parallel, respectively, and the gas and the accompanying airstream generated shear respectively be single-linearly act on each spinning liquid, and therefore the fine diameter fibers can be spun. 还可以通过由I处喷气部喷出的气体将由2处以上的喷液部喷出的纺丝液制成纤维,可以减少气体量,因此可以抑制纤维的飞散,生产性良好地制备质地优异的无纺布。 I may also be by the portion of the jet of gas ejected by the liquid ejecting portion into fibers at two or more spinning solution discharged, the amount of gas can be reduced, it is possible to suppress scattering of fibers prepared with good productivity is excellent in texture non-woven fabrics. 由于可以减少气体量、无需使吸引装置大型化、并且无需对各纺丝液施加高电压,因此在能耗方面有优势。 Since the gas amount can be reduced, without making the size of the suction device, and without applying a high voltage to each spinning liquid, and therefore has an advantage in terms of energy consumption. 另外,可以减少气体量、无需增强吸引力,因此可以制备薄的无纺布乃至厚的无纺布。 Further, the amount of gas can be reduced without enhancing the attractiveness, it can be prepared a thin nonwoven fabric and the nonwoven fabric thickness. 并且,本发明的[9]所述的制备方法是在2种以上的喷出条件下由喷液部喷出纺丝液并制成纤维,因此可以制备纤维直径、树脂组成等不同的2种以上的纤维均匀混合的、质地优异的无纺布。 Further, the production method according to [9] of the present invention is at least two kinds of spinning liquid discharge condition of the discharge portion and the liquid discharge into fibers, it is possible to prepare different fiber diameters, two kinds of resin, etc. the fibers are uniformly mixed with the above, a nonwoven fabric excellent in texture.

[0045] 本发明的[11]所述的制备方法是通过喷出浓度不同的纺丝液,可以制备纤维直径不同的2种以上的纤维均匀混合存在、质地优异的无纺布。 [0045] [11] The production method of the present invention is achieved by ejecting a spinning solution in different concentrations, different fiber diameter can be produced uniformly two or more kinds of fibers are mixed, a nonwoven fabric excellent in texture.

[0046] 本发明的[12]所述的制备方法是通过喷出聚合物不同的纺丝液,可以制备树脂组成不同的2种以上纤维均匀混合存在、质地优异的无纺布。 [0046] [12] The production method of the present invention is different from the polymer discharged through a spinning solution can be prepared by different fibers are uniformly mixed resin of two or more, a nonwoven fabric excellent in texture.

[0047] 本发明的[13]所述的制备方法是通过喷出溶剂不同的纺丝液,可以制备纤维直径不同的2种以上纤维均匀混合存在、质地优异的无纺布。 [13] The production method [0047] of the present invention is different from the solvent by discharging the spinning solution, a different diameter of the fibers may be prepared uniformly mixed presence of two or more, a nonwoven fabric excellent in texture.

附图说明 BRIEF DESCRIPTION

[0048] 图I (a)是将本发明的纺丝装置的前端部放大的透视图。 [0048] FIG I (a) is a front end portion of the spinning apparatus of the present invention is an enlarged perspective view of FIG. (b)是用上述(a)所示的平面C切断的切面图。 (B) is a plane C shown in (a) of the cutting section of FIG.

[0049] 图2是以往的纺丝装置的截面图。 [0049] FIG. 2 is a sectional view of a conventional spinning apparatus.

[0050] 图3是表示比较例I中使用的喷液喷嘴和喷气喷嘴的配置的横切面平面图。 [0050] FIG. 3 is a cross-section plan view showing the configuration of the liquid ejecting nozzle and the air nozzle used in Comparative Example I.

[0051] 图4是将本发明的另一纺丝装置的前端部放大的透视图。 [0051] FIG. 4 is a distal portion of another spinning apparatus of the present invention is an enlarged perspective view of FIG.

[0052] 图5(a)是用垂直于气体用柱状中空部的中心轴的平面切断时的切断平面图的一个例子(用图4的C平面切断的平面图)。 [0052] FIG. 5 (a) is a plan view of an example of a cut (cutting plane C by a plan view of FIG. 4) when the plane of the central axis of the columnar hollow for gas with a portion cut vertically. (b)是用垂直于气体用柱状中空部的中心轴的平面切断时的切断平面图的另一例子。 (B) is a plan view showing another example of cutting in the cutting plane when the central axis of the columnar hollow portion of the vertical gas. (c)是用垂直于气体用柱状中空部的中心轴的平面切断时的切断平面图的另一例子。 (C) is a plan view showing another example of cutting in the cutting plane when the central axis of the columnar hollow portion of the vertical gas. (d)是用垂直于气体用柱状中空部的中心轴的平面切断时的切断平面图的另一例子。 (D) shows a plan view of another example of cutting in the cutting plane when the central axis of the columnar hollow portion of the vertical gas. (e)是用垂直于气体用柱状中空部的中心轴的平面切断时的切断平面图的另一例子。 (E) is a plan view of another example of the cutting gas when the plane of the central axis of the columnar hollow portion by a vertical cut.

[0053] 图6(a)是用垂直于气体用柱状中空部的中心轴的平面切断时的切断平面图的一个例子。 [0053] FIG. 6 (a) is a plan view of an example of the cutting plane of the cutting gas when the central axis of the columnar hollow portion by vertical. (b)是用垂直于气体用柱状中空部的中心轴的平面切断时的切断平面图的另一例子。 (B) is a plan view showing another example of cutting in the cutting plane when the central axis of the columnar hollow portion of the vertical gas. (C)是用垂直于气体用柱状中空部的中心轴的平面切断时的切断平面图的另一例子。 (C) is a plan view showing another example of cutting when cutting in a plane with the central axis of the columnar hollow portion of the vertical gas.

[0054] 符号说明 [0054] Description of Symbols

[0055] NUNln :喷液喷嘴 [0055] NUNln: liquid nozzle jet

[0056] Nl1 :第I喷液喷嘴 [0056] Nl1: I first liquid nozzle jet

[0057] Nl2 :第2喷液喷嘴[0058] Ng:喷气喷嘴 [0057] Nl2: second liquid ejection nozzle [0058] Ng: air nozzle

[0059] El :喷液部 [0059] El: liquid discharge portion

[0060] El1 :第I喷液部 [0060] El1: a first liquid discharge portion I

[0061] El2 :第2喷液部 [0061] El2: the second liquid discharge portion

[0062] Eg:喷气部 [0062] Eg: jet unit

[0063] Hl :液体用柱状中空部 [0063] Hl: the columnar hollow for liquid

[0064] Hl1 :第I液体用柱状中空部 [0064] Hl1: I of the columnar hollow for liquid

[0065] Hl2 :第2液体用柱状中空部 [0065] Hl2: second columnar hollow for liquid

[0066] Hg:气体用柱状中空部 [0066] Hg: columnar hollow for gas

[0067] Hvl :液体假想柱状部 [0067] Hvl: virtual column for liquid

[0068] Hvl1 :第I液体假想柱状部 [0068] Hvl1: virtual column I of liquid

[0069] Hvg :气体假想柱状部 [0069] Hvg: virtual column for gas

[0070] Al :喷出方向中心轴(液体) [0070] Al: discharging direction of the central axis (liquid)

[0071] Al1 :第I喷出方向中心轴(液体) [0071] Al1: a first ejecting direction of the central axis I (liquid)

[0072] Al2 :第2喷出方向中心轴(液体) [0072] Al2: second ejection direction of the central axis (liquid)

[0073] Ag :喷出方向中心轴(气体) [0073] Ag: discharging direction of the central axis (gas)

[0074] C :与气体用柱状中空部的中心轴垂直的平面 [0074] C: gas central plane perpendicular to the axis of the columnar hollow portion of

[0075] L1 :外周间的距离最短的直线 [0075] L1: the shortest distance between the outer periphery of a straight line

[0076] LI :直线 [0076] LI: linear

[0077] L2 :直线 [0077] L2: linear

[0078] 12 :第I 构件 [0078] 12: a first member I

[0079] 22 :第2 构件 [0079] 22: the second member

[0080] 32 :第3 构件 [0080] 32: third member

[0081] 14、24、34 :供给端部 [0081] 14,24,34: a supply end

[0082] 16、26、36 :相对向的出口端部 [0082] 16,26,36: opposing outlet end

[0083] 18 :第I供给狭缝 [0083] 18: first supply slit I

[0084] 38 :第I气体狭缝 [0084] 38: First gas slit I

[0085] 20 :喷气空间 [0085] 20: Jet space

具体实施方式 Detailed ways

[0086] 根据将纺丝装置的前端部放大的透视图——图I (a)、以及图I (a)的C平面切断图——图1(b),对本发明的纺丝装置进行说明。 [0086] The distal end portion of the spinning apparatus enlarged perspective view - FIG I (a), and FIG I (a) of FIG cutting plane C - FIG. 1 (b), of the spinning apparatus of the present invention will be described .

[0087] 本发明的纺丝装置是将I个喷液喷嘴NI与I个喷气喷嘴Ng的外壁面相接,喷液喷嘴NI的一个端部具有可喷出纺丝液的喷液部E1,喷气喷嘴Ng的一个端部具有可喷出气体的喷气部Eg,喷气喷嘴Ng的喷气部Eg位于喷液部El的上游一侧的位置。 [0087] In the spinning apparatus of the present invention is the outer wall surface of the liquid jet nozzle NI I I with a jet nozzle in contact Ng, an end portion of a liquid ejecting nozzle having a liquid ejecting portion NI E1 spinning liquid may be discharged, one end portion of the jet has a jet nozzle portion of Ng may be discharged gas Eg, Eg jet air nozzle Ng portion located at a position upstream side of the liquid ejecting portion El. 应说明的是,喷液喷嘴NI具有以喷液部El作为端部的液体用柱状中空部Hl,喷气喷嘴Ng具有以喷气部Eg作为端部的气体用柱状中空部Hg。 It should be noted that the liquid ejecting nozzle having jet NI (Eg) having a gas as the end portion of the hollow columnar portion to the liquid discharge portion El Hg as the liquid portion of the columnar hollow end portion Hl, jet nozzle Ng. 将上述液体用柱状中空部Hl延长而成的液体假想柱状部Hvl和将上述气体用柱状中空部Hg延长而成的气体假想柱状部Hvg只隔着相当于喷液喷嘴NI的壁厚与喷气喷嘴Ng的壁厚的和的距离,处于相接近的状态。 The above-described liquid which is extended from the columnar hollow portions Hl liquid and the virtual column for the gas Hvl extended from the columnar hollow for gas (Hg) only via the virtual column corresponds Hvg liquid nozzle jet air nozzle and the wall thickness NI Ng wall thickness and a distance, in the close state. 并且上述液体用柱状中空部Hl的喷出方向中心轴Al和气体用柱状中空部Hg的喷出方向中心轴Ag处于平行关系。 And with the liquid ejection direction of the columnar hollow portions Hl central axis Al and Ag gas central axis of the columnar hollow portion Hg ejection direction in a parallel relation. 并且,如图1(b)中用与气体用柱状中空部Hg的中心轴垂直的平面C切断的切断图所示,气体用柱状中空部Hg的切面的外形、液体用柱状中空部Hl的切面的外形均为圆形,它们处于只可引一条外周间的距离最短的直线L1的状态。 And, as shown in FIG cutting (b) with the center of the columnar hollow for gas (Hg) in a plane perpendicular to the axis C of the cutting, the columnar hollow for gas (Hg) of the profile section of the columnar hollow for liquid section of Hl shape are round, they are cited only a shortest straight line distance between the outer periphery L1 state.

[0088] 因此,向图I所示的纺丝装置的喷液喷嘴NI供给纺丝液,向喷气喷嘴Ng供给气体,则纺丝液经由液体用柱状中空部Hl由喷液部El沿液体用柱状中空部Hl的轴向喷出,同时,气体经由气体用柱状中空部Hg由喷气部Eg沿气体用柱状中空部Hg的轴向喷出。 [0088] Thus, the liquid discharge nozzle to the spinning apparatus shown in FIG. I NI spinning liquid is supplied, the supply gas to the jet nozzle Ng, the spinning liquid with the liquid ejecting portion through the liquid along the liquid El columnar hollow portions Hl Hl columnar hollow portion axially ejected, while the gas through the columnar hollow for gas (Hg) Hg discharge columnar hollow axial direction by the gas jet unit Eg. 该喷出的气体和喷出的纺丝液处于接近的状态,气体的喷出方向与纺丝液的喷出方向为平行关系,并且,平面C上、喷出的气体和喷出的纺丝液最近的点为一点,S卩,纺丝液呈一条直线状受到的气体和伴随气流产生的剪切作用,因此形成细直径,同时沿液体用柱状中空部Hl的轴向飞行,同时纺丝液的溶剂挥发,形成纤维。 The gas is ejected and discharged in a state close to the spinning solution, the ejection direction of the gas discharge direction of the spinning liquid is in parallel relationship, and, on the plane C, and the discharge gas discharged spinning was the nearest point to a point, S Jie, a spinning solution was subjected to a gas in a straight line shearing action and the accompanying air flow generated, thus forming a small diameter, while the liquid along the axial direction of flight columnar hollow portions Hl while spinning evaporation of the solvent liquid to form a fiber. 如上所述,图I的纺丝装置无需对纺丝液施加高电压,也无需加热纺丝液和气体,因此是简单且能耗有优势的装置。 As described above, the spinning apparatus of FIG. I without applying a high voltage to the spinning solution, but also without heating the spinning liquid and the gas, the energy consumption is therefore simple and advantageous means.

[0089] 喷液喷嘴NI只要可喷出纺丝液即可,喷液部El的形状没有特别限定,喷液部El的形状例如可以是圆形、长圆形、椭圆形、多边形(例如三角形、四边形、六边形),为了呈一条直线状受到气体或伴随气流产生的剪切作用,并难以生成液滴,优选为圆形。 [0089] NI liquid ejecting nozzle can be as long as the spinning solution discharged, liquid discharge section shape is not particularly limited El, El liquid discharge portion, for example, a shape may be circular, oval, elliptical, polygonal (e.g., triangular , quadrangle, hexagon), to single-linearly subjected to the shearing action of the gas flow or associated gas produced and difficult to generate the droplets, preferably circular. 喷液部El的形状为多边形时,通过将多边形的一个角配置在喷气喷嘴Ng—侧,则气体或伴随气流的剪切作用形成一条直线状,难以生成液滴。 El liquid ejecting portion is a polygonal shape, by a corner of the polygon arranged in the air nozzle side Ng-, gas or the like is formed along a straight line shearing action of the gas flow, it is difficult to generate a droplet. 即,用与气体用柱状中空部Hg的中心轴垂直的平面切断时,处于只可引一条气体用柱状中空部Hg的切面的外周和液体用柱状中空部Hl的切面的外周的距离最短的直线的状态,喷出的纺丝液呈一条直线状受到气体和伴随气流的剪切作用,难以生成液滴。 That is, when cut by a plane perpendicular to the axis of the center pillar of the hollow portion of Hg with the gas, in a straight line shortest distance with the outer circumferential section of the columnar hollow portions Hl is only cited a columnar hollow for gas (Hg) of the section of the outer periphery and the liquid state, the spinning solution discharged is single-linearly subjected to the shearing action of the gas and the accompanying airstream, difficult to produce droplet.

[0090] 喷液部El的大小没有特别限定,优选0. 03-20mm2,更优选0. 03-0. 8mm2。 [0090] El size liquid ejecting portion is not particularly limited, but preferably 0. 03-20mm2, more preferably 0. 03-0. 8mm2. 比0. 03mm2小,则难以喷出粘度高的纺丝液,超过20mm2,则难以使剪切作用作用于全体喷出的纺丝液,有容易形成液滴的倾向。 Less than 0. 03mm2, it is difficult to discharge the high viscosity of the spinning liquid more than 20mm2, it is difficult to shear acting on all the spinning solution discharged, the droplet tends to be easily formed.

[0091] 喷液喷嘴NI可以是金属制,也可以是树脂制,其材料没有特别限定。 [0091] NI liquid ejecting nozzle may be made of metal, it may be made of a resin, which material is not particularly limited. 还可以使用金属制或树脂制的管。 Use may also be made of metal or resin tube. 并且图I中图示了圆柱状的喷液喷嘴NI,也可以使用前端具有斜度、被切断的锐角喷嘴。 I and illustrated in FIG cylindrical liquid ejecting nozzle the NI, the distal end having a slope may be used, the nozzle is cut at an acute angle. 该锐角喷嘴在纺丝液粘度高时有效。 The acute angle of the nozzle at high effective viscosity of the spinning solution. 使用上述锐角喷嘴时,以尖的一侧作为喷气喷嘴一侧,则容易受到气体和伴随气流的剪切作用,可以稳定地制成纤维。 When using the nozzle at an acute angle to one side as the tip side of the jet nozzle, it is susceptible to the shearing action of the gas and the accompanying airstream can be stably made into fibers.

[0092] 喷气喷嘴Ng只要可以喷出气体即可,喷气部Eg的形状没有特别限定,喷气部Eg的形状例如可以是圆形、长圆形、椭圆形、多边形(例如三角形、四边形、六边形),为了使气体和伴随气流的剪切作用容易发生作用,优选为圆形。 [0092] Ng jet nozzle as long as gas can be discharged, the shape of the jet unit is not particularly limited Eg, Eg, for example, the shape of the jet portion may be circular, oval, elliptical, polygonal (e.g., triangular, quadrangular, hexagonal shaped), in order to easily occur accompanying the shearing action and action of the gas stream, preferably circular. 喷气部Eg的形状为多边形时,将多边形的一个角配置在喷液喷嘴NI —侧,气体和伴随气流的剪切作用容易发挥作用。 Eg shape of the jet unit is a polygon, the corners of the polygon disposed in a liquid ejecting nozzle NI - side, and the accompanying gas stream shear easily play. 即,用与气体用柱状中空部Hg的中心轴垂直的平面切断时,处于只可引一条气体用柱状中空部Hg的切面的外周与液体用柱状中空部Hl的切面的外周的距离最短的直线的状态,喷出的纺丝液呈一条直线状受到气体和伴随气流的剪切作用,难以生成液滴。 That is, when cut by a plane perpendicular to the axis of the center pillar of the hollow portion of Hg with the gas, in a straight line shortest distance with the outer circumferential section of the columnar hollow portions Hl is only cited a columnar hollow for gas (Hg) of the section of the outer periphery of the liquid state, the spinning solution discharged is single-linearly subjected to the shearing action of the gas and the accompanying airstream, difficult to produce droplet.

[0093] 喷气部Eg的大小也没有特别限定,优选0. 03-79mm2,更优选0. 03-20mm2。 Size [0093] Eg jet unit is not particularly limited, preferably 0. 03-79mm2, more preferably 0. 03-20mm2. 比0. 03mm2小,则难以使剪切作用作用于喷出的纺丝液全体,难以稳定地制成纤维,而超过79mm2,则为了发挥剪切作用而必须有足够的风速,必须有大量的气体,不经济。 Less than 0. 03mm2, it is difficult to shear acting on the spinning liquid discharged of all, it is difficult to stably prepare a fiber, exceeds 79mm2, in order to play the shearing action must have sufficient wind speed, the need for a substantial gas, uneconomical. 优选喷气部Eg的大小与喷液部El的大小相同,或更大。 The same size as the liquid ejecting portion (Eg) El preferred jet size, or larger. 这样,气体和伴随气流的剪切作用容易发挥。 Thus, the gas and the accompanying airstream shear easy to play.

[0094] 喷气喷嘴Ng可以是金属制,也可以是树脂制,其材料没有特别限定。 [0094] Ng jet nozzle may be made of metal, it may be made of a resin, which material is not particularly limited. 也可以使用金属制和树脂制的管代替喷气喷嘴。 Use may also be made of a metal and a resin tube in place of the air nozzle.

[0095] 喷气喷嘴Ng配置成喷气部Eg位于喷液部El的上游一侧(纺丝液的供给侧),因此可以防止纺丝液裹到喷液部周边,因此,不会污染喷液部,可长时间纺丝。 [0095] Ng jet nozzle arranged at the upstream side of the jet portion Eg El liquid ejecting portion (the supply side of the spinning solution), wrap spinning liquid can be prevented to the surrounding liquid ejecting portion, and therefore, does not contaminate the liquid discharge portion , long spinning. 喷气部Eg和喷液部El的距离优选IOmm以下,更优选5mm以下,但并不受此限定。 Preferably from IOmm jet liquid ejecting portion and a portion Eg of El or less, more preferably 5mm or less, but is not limited thereto. 超过10mm,则气体和伴随气流对纺丝液的剪切力不足,难以形成纤维。 More than 10mm, the gas and the accompanying airstream on the spinning solution is less than the shear force, it is difficult to form fibers. 喷气部Eg和喷液部El的距离差的下限没有特别限定,喷气部Eg和喷液部El可以不一致。 The lower limit of the distance difference and the jet portion Eg El liquid ejecting portion is not particularly limited, and jet liquid ejecting portion Eg unit El can be different.

[0096] 液体用柱状真空部Hl是纺丝液的经过通路,形成纺丝液喷出时的形状,气体用柱状真空部Hg是气体的经过通路,形成气体喷出时的形状。 [0096] Liquid Hl columnar portion is vacuum passage through the spinning solution, the spinning liquid discharge shape is formed, the gas is columnar Hg vacuum through the portion of the gas passage, a gas discharge shape is formed.

[0097] 将液体用柱状中空部Hl延长而成的液体假想柱状部Hvl是由喷液部El喷出的纺丝液刚喷出后的飞行路线,将气体用柱状中空部Hg延长而成的气体假想柱状部Hvg是由喷气部Eg喷出的气体刚喷出后的喷出路线。 [0097] The liquid which is extended from the columnar hollow for liquid Hl is a virtual column Hvl flight path immediately after the spinning solution discharged El discharged liquid discharge portion, the columnar hollow for gas (Hg) extended from the gas is discharged Hvg virtual column line immediately after discharge from the jet discharged gas (Eg). 该液体假想柱状部Hvl和气体假想柱状部Hvg的距离相当于喷液喷嘴NI的壁厚和喷气喷嘴Ng的壁厚的和,该距离优选2mm以下,更优选Imm以下。 Hvg distance of the liquid and the virtual column for gas Hvl virtual column for liquid ejecting nozzle NI corresponds to the wall thickness and wall thickness of Ng and the air nozzle, the distance is preferably 2mm or less, and more preferably less Imm. 超过2mm,则气体和伴随气流的剪切力难以作用,有难以形成纤维的倾向。 Than 2mm, the gas and the accompanying airstream is difficult to effect a shearing force, tends to be difficult to form fibers.

[0098] 该液体假想柱状部Hvl与气体假想柱状部Hvg均是内部充实的柱状。 [0098] The virtual column for liquid and the gas Hvl Hvg virtual column are substantial internal cylindrical. 例如,如果是将圆柱状的液体假想部用中空圆柱状的气体假想部覆盖的状态、或者是将圆柱状的气体假想部用中空圆柱状的液体假想部覆盖的状态,则用与气体假想柱状部的中心轴垂直的平面切断时,可以引无数条液体假想部的切面的外周与气体假想部的切面的内周、或气体假想部的切面的外周与液体假想部的切面的内周的距离最短的直线,结果气体和伴随气流的剪切力作用在各个点上,纤维化不充分,液滴增多。 For example, if the state of the cylindrical liquid phantom portion covered with a gas imaginary portion of the hollow cylindrical or a columnar gas imaginary portion is covered with a hollow cylindrical liquid phantom unit state, with the gas imaginary cylindrical when a plane perpendicular to the axis of the central portion of the cut, can lead section of the inner circumferential section of the outer periphery of the gas imaginary portion myriad liquid imaginary part, or cut the section of the distance in the periphery of the outer periphery of the liquid imaginary portion of the gas imaginary portion the shortest straight line, the results of the gas and the accompanying airstream shear force at various points, insufficient fibrosis, increased droplet. 该“假想柱状部”是喷嘴的内壁面延长形成的部分。 The "virtual column" is the inner wall surface of the nozzle extension portion is formed.

[0099] 并且,液体用柱状中空部Hl的喷出方向中心轴Al和气体用柱状中空部Hg的喷出方向中心轴Ag平行、可使气体和伴随气流呈一条直线状作用于喷出的纺丝液,因此可稳定地形成纤维。 [0099] Further, with the liquid ejection direction of the columnar hollow portions Hl central axis Al and Ag gas shaft portion parallel to the ejection direction of the central hollow pillar Hg, the gas and the accompanying airstream can be single-linearly act on the discharged spinning silk solution, thus forming fibers stably. 例如,如果是将圆柱状的液体用中空部用中空圆柱状的气体中空部覆盖的状态、或者是圆柱状的气体中空部用中空圆柱状的液体用中空部覆盖的状态,这些中心轴一致,则无法使气体和伴随气流的剪切力呈一条直线状作用,纤维化不足,液滴增多。 For example, if a state in which the cylindrical liquid covered with a hollow portion of a hollow cylindrical gas hollow portion, or a state of a columnar gas of the hollow portion is covered with a hollow cylindrical liquid hollow portion, consistent these central axes, can not shear the gas and the accompanying airstream single-linearly acting, insufficient fibrosis, increased droplet. 另外,如果这些中心轴位于交叉或扭转的位置,则气体和伴随气流所产生的剪切力不作用,或者即使作用也不均匀,因此无法稳定形成纤维。 Further, if the shearing force does not act at the intersection of the central axis or twisted position, the gas and the accompanying airstream generated, or even if the effect is not uniform, and therefore can not be stably formed in the fiber. 该“平行”是指液体用柱状中空部Hl的喷出方向中心轴Al与气体用柱状中空部Hg的喷出方向中心轴Ag可位于同一平面上、并且平行。 The term "parallel" refers to the discharge direction of the columnar hollow for liquid Hl central axis Al and the central axis of the gas Ag columnar hollow portion of Hg ejection direction may be located on the same plane and are parallel. 另外,“喷出方向中心轴”是将喷出部的中心和假想柱状部的横切面的中心连接而成的直线。 Moreover, "discharge direction of the central axis" is formed by a straight line connecting the center of the discharge cross-section of the central cylindrical portion and an imaginary portion.

[0100] 本发明的纺丝装置用与气体用柱状中空部Hg的中心轴垂直的平面切断时,只可引一条气体用柱状中空部Hg的切面的外周与液体用柱状中空部Hl的切面的外周的距离最短的直线(图1(b))。 [0100] In the spinning apparatus of the present invention when the cutting plane of columnar hollow for gas (Hg) of the center axis perpendicular to use only may be cited a gas of Hg cut the outer periphery of the columnar hollow portion of the liquid with the columnar hollow portions Hl of facets the outer periphery of the shortest distance of a straight line (FIG. 1 (b)). 由这样的气体用柱状中空部喷出的气体和伴随气流呈一条直线状作用于由液体用柱状中空部喷出的纺丝液,可发挥剪切作用,因此不会形成液滴,可稳定纺丝。 Such a columnar hollow for gas discharge portion and the accompanying gas stream in the form of single-linearly exerted by the liquid spinning solution ejected columnar hollow portions, may play a role in the shear and therefore do not form droplets can be stably spun wire. 例如,如果可引两条上述直线,则在一个点上作用时和在另一个点上作用时成为交互作用等,无法发挥稳定的剪切作用,结果形成液滴,无法稳定纺丝。 For example, if two of the straight line may be cited, it becomes a point in time when the role and the other acts on the point of interaction and the like, can not play the role of stabilizing shearing, results in the formation of droplets can not be stably spun.

[0101] 图1(a)中并未图示,但是液体喷嘴NI与纺丝液贮存装置(例如注入机、不锈钢罐、塑料罐或氯乙烯树脂制、聚乙烯树脂制等树脂制袋等)连接,喷气喷嘴Ng与供气装置(例如压缩机、气瓶、鼓风机等)连接。 [0101] FIG. 1 (a) in not shown, the spinning liquid was stored NI nozzle means (e.g. injection, stainless steel cans, plastic containers, or vinyl chloride resin, a polyethylene resin such as a resin bag, etc.) connection, Ng jet nozzle and the supply means (e.g. a compressor, a gas cylinder, a blower, etc.).

[0102] 图I中只描述了I组纺丝装置,也可以配置2组以上的纺丝装置,通过配置2组以上的纺丝装置,可以提高生产性。 [0102] FIG. I only group I described spinning apparatus, may be arranged more sets of spinning apparatus, by arranging two or more sets of spinning apparatus, productivity can be improved.

[0103] 图I中是将喷液喷嘴NI和喷气喷嘴Ng固定的状态,只要满足上述关系,并不限于图I的方案。 [0103] Figure I is a liquid ejecting nozzle and the air nozzle NI Ng, fixed state, as long as the above relationship is not limited to the embodiment of FIG. I. 例如,可以在具有高度差的基材上穿孔形成液体用柱状中空部Hl和气体用柱状中空部Hg。 For example, perforations may be formed in a liquid having a height difference of the substrate and the columnar hollow portions Hl columnar hollow for gas Hg. 还可以具备可自由调节喷液喷嘴NI的喷液部El和/或喷气喷嘴Ng的喷气部Eg的位置的机构。 It may further include a liquid discharge portion can be freely adjusted El NI liquid ejecting nozzle and / or the position of the jet means a jet nozzle portion Eg of Ng.

[0104] 本发明的无纺布制备装置除上述纺丝装置之外,还具有纤维的收集体,因此可以收集纤维,制备无纺布。 [0104] the nonwoven fabric manufacturing apparatus of the present invention other than the above spinning apparatus, further comprising collecting fibers, the fibers can be collected to prepare a nonwoven fabric.

[0105] 该收集体只要可以将纤维直接汇集即可,可以是任何收集体,例如可以使用无纺布、机织物、编织物、网、转鼓、传送带或平板作为收集体。 [0105] as long as the collecting fiber can be directly together, it may be any collecting, for example, nonwoven fabric, woven fabric, knitted fabric, net, drum, belt or plate as collecting. 本发明中由于是喷出气体,为了吸引气体、容易将纤维汇集在收集体上、还为了防止汇集的纤维混乱,优选使用透气性的收集体,在收集体的与纺丝装置一侧相反面的一侧配置吸引装置。 Since the present invention is a gas discharge, in order to attract the gas, is easily collected on the collecting fibers, further fibers together in order to prevent confusion, it is preferable to use air-permeable collecting, on a side opposite to the collecting surface of the spinning device suction means arranged on the side.

[0106] 上述收集体与纺丝装置的喷气部Eg相对设置,则可以确实地收集纤维,制备无纺布,因此优选。 [0106] Eg jet above the collecting portion and disposed opposite the spinning apparatus, it is possible to reliably collect fiber, a nonwoven fabric was prepared, which is preferable. 特别优选将收集体配置成收集体的收集面与气体的喷出方向的中心轴Ag呈直角。 Particularly preferably arranged collecting discharge direction of the collecting surface of the collecting the gas at right angles to the central axis of Ag. 即使将收集体配置成收集体的收集面与气体的喷出方向的中心轴Ag平行,在纤维的飞行力消失的重力方向下方、或者使改变飞行方向的气流作用时,也可以将纤维汇集在收集体上。 Even when the central axis of the closed Ag arranged parallel to the ejection direction collective collecting surface of the collecting the gas, below the flight direction of the fibers in the gravity force disappears, or to change the flight direction of gas flow, the fibers may be collected in collecting body. 因此,纺丝装置的气体喷出方向的中心轴Ag可以朝向与重力交叉的方向。 Thus, the direction of the central axis of the discharge gas Ag spinning apparatus may be a direction intersecting the gravity direction.

[0107] 将收集体与纺丝装置的喷气部Eg相对配置时,收集体与纺丝装置的喷液部El的距离根据纺丝液的喷出量或气体流速而变化,没有特别限定,优选50-1000mm。 [0107] When the air jet spinning unit Eg collecting means disposed opposite from the liquid discharge portion of the collecting El spinning apparatus varies depending on the gas flow rate or the amount of discharge of the spinning solution, is not particularly limited, 50-1000mm. 低于50mm,则以纺丝液的溶剂未充分蒸发的状态汇集,汇集后无法保持纤维形状,无法获得无纺布。 Less than 50mm, places dope solvent is not sufficiently evaporated together state, can not maintain the shape of the collection fibers, the nonwoven fabric can not be obtained. 超过1000mm,则气流混乱,纤维被切断,有容易飞散的倾向。 More than 1000mm, the airflow confusion, the fiber is cut, there is a tendency to easily scattered.

[0108] 本发明的无纺布制备装置除上述收集体之外,优选具备可收藏纺丝装置和收集体的纺丝容器。 [0108] the nonwoven fabric manufacturing apparatus of the present invention other than the above collecting, collectible spinning apparatus preferably includes collecting and spinning the container. 通过具备上述纺丝容器,可以防止纺丝液挥发的溶剂飞散,可根据情形回收溶剂,重新利用。 Includes the container by spinning, the spinning solution can be prevented from scattering of volatile solvent, the solvent can be recovered according to the case, re-use. 另外,在纺丝容器中收藏纺丝装置和收集体时,优选与用于吸引上述纤维的吸引装置分开、在纺丝容器上连接排气装置。 In addition the suction device, when the collection spinning apparatus in the spinning and the collecting vessel, preferably for attracting the fibrous separately connected to an exhaust device on a spinning container. 进行纺丝时,纺丝容器内的溶剂蒸气浓度逐渐升高,溶剂的蒸发受到抑制,因此容易发生纤维直径的不均匀,还有难以形成纤维的倾向,但如果将纺丝容器内的气体排气,将纺丝容器内的溶剂浓度保持一定,则可以减少纤维直径的不均匀,可稳定地制成纤维。 When spun, the solvent vapor concentration in the spinning container is gradually elevated, evaporation of the solvent is suppressed, and therefore prone to unevenness of fiber diameters, there tends to be difficult to form fibers, but if the gas discharge in the spinning container gas, the solvent concentration in the spinning container kept constant, it is possible to reduce variation in fiber diameter can be stably made into fibers. 另外,连接调节好温湿度的气体供给装置,这可以使纺丝容器内的溶剂蒸气浓度稳定,可以减少纤维直径的不均匀,因此优选。 Further, good connection temperature and humidity conditioned gas supply device, which allows the solvent vapor concentration in the spinning container is stable, non-uniform fiber diameter can be reduced, which is preferable.

[0109] 本发明的无纺布的制备方法是使用上述无纺布制备装置、由纺丝装置的喷气部Eg喷出流速IOOm/秒以上的气体的方法。 [0109] The method of preparing a nonwoven fabric of the present invention is the use of the nonwoven fabric manufacturing apparatus, the above method of gas / sec IOOm a portion Eg jet spinning apparatus discharge flow rate. 由喷气部Eg喷出流速IOOm/秒以上的气体,则可以抑制液滴的发生,可以高效率地制备含有细直径纤维的无纺布。 Eg the discharge flow rate of the jet portion IOOm / sec or more gases can be suppressed the occurrence of liquid droplets, can be efficiently prepared nonwoven fabric comprising fibers of small diameter. 优选喷出流速150m/秒以上的气体,更优选喷出流速200m/秒以上的气体。 More preferably the discharge flow rate of 150m / sec gas, preferably more than the discharge flow rate of 200m / sec gas. 气体流速的上限只要是不会扰乱汇集在收集体上的纤维的流速即可,没有特别限定。 The upper limit as long as the gas flow rate to the flow rate of collection of fibers is not disturbed in the collecting body is not particularly limited. 为了喷出上述流速的气体时,例如可以由压缩机向气体用柱状中空部Hg供给气体。 For ejecting the gas flow rate, for example Hg can supply gas to the columnar hollow for gas from the compressor. 气体的种类没有特别限定,可以使用空气、氮气、氩气等,其中空气较为经济。 Kind of gas is not particularly limited, and may be used air, nitrogen, argon, etc., where air is more economical. 另外,这些气体中可以含有对纺丝液具有亲和性的溶剂的蒸气或不具有亲和性的溶剂的蒸气。 Further, these gases may contain a vapor having an affinity for the solvent or the spinning solution does not have an affinity for the solvent vapor. 通过调节上述溶剂的蒸气量,可以控制纺丝液的溶剂蒸发速度或纺丝液的固化速度,提高纺丝的稳定性,或可调节纤维直径。 By adjusting the amount of vapor of the above solvent, the solvent can be controlled evaporation rate of the spinning solution or spinning dope cure speed, improve the stability of spinning, fiber diameter or adjustable.

[0110] 可在本发明的制备方法中使用的各纺丝液只要是可将所需聚合物溶解到溶剂中即可,没有特别限定。 [0110] Each spinning liquid may be used in the production method of the present invention as long as the desired polymer may be dissolved in a solvent is not particularly limited. 例如可使用将聚乙二醇、部分皂化聚乙烯醇、完全皂化聚乙烯醇、聚乙烯吡咯烷酮、聚乳酸、聚酯、聚二醇酸、聚丙烯腈、共聚聚丙烯腈、聚甲基丙烯酸、聚甲基丙烯酸甲酯、聚碳酸酯、聚苯乙烯、聚酰胺、聚酰亚胺、聚乙烯或聚丙烯等的I种或2种以上的聚合物溶解于水、丙酮、甲醇、乙醇、丙醇、异丙醇、四氢呋喃、二甲基亚砜、1,4_ 二噁烷、吡啶、N,N- 二甲基甲酰胺、N,N- 二甲基乙酰胺、N-甲基-2-吡咯烷酮、乙腈、甲酸、甲苯、苯、环己烷、环己酮、四氯化碳、二氯甲烷、氯仿、三氯乙烷、碳酸乙烯酯、碳酸二乙酯、碳酸丙烯酯等I种或2种以上的溶剂中形成的纺丝液。 May be used, for example, polyethylene glycol, partially saponified polyvinyl alcohol, completely saponified polyvinyl alcohol, polyvinylpyrrolidone, polylactic acid, polyesters, poly glycolic acid, polyacrylonitrile, acrylonitrile copolymerized, polymethacrylic acid, polymethyl methacrylate, polycarbonate, polystyrene, polyamide, polyimide, polyethylene, polypropylene, or the like I or two or more kinds of polymers dissolved in water, acetone, methanol, ethanol, propanol alcohol, isopropyl alcohol, tetrahydrofuran, dimethylsulfoxide, dioxane 1,4_, pyridine, N, N- dimethylformamide, N, N- dimethylacetamide, N- methyl-2- pyrrolidone, acetonitrile, formic acid, toluene, benzene, cyclohexane, cyclohexanone, carbon tetrachloride, methylene chloride, chloroform, trichloroethane, ethylene carbonate, diethyl carbonate, propylene carbonate or species I spinning solution of two or more solvents formed.

[0111] 纺丝时的纺丝液粘度优选为IO-IOOOOmPa • s的范围,更优选20_8000mPa • s的范围。 [0111] When the spinning dope viscosity is preferably in the range of IO-IOOOOmPa • s, more preferably in the range 20_8000mPa • s. 粘度低于IOmPa* S,则粘度过低,拉丝性差,有难以形成纤维的倾向,粘度超过IOOOOmPa* S,则纺丝液难以拉伸,有难以形成纤维的倾向。 A viscosity less than IOmPa * S, the viscosity is too low, poor drawing, tends to be difficult to form the fibers, the viscosity exceeds IOOOOmPa * S, it is difficult to draw the spinning solution, fibers are formed tends to be difficult. 因此,即使常温下粘度超过IOOOOmPa • S,通过加热纺丝液本身或液体用柱状中空部H1,只要可以达到上述粘度范围内,则均可使用。 Accordingly, even when the viscosity at room temperature of more than IOOOOmPa • S, as such or columnar hollow for liquid portion H1, as long as the viscosity can be achieved within the above range, the spinning solution can be used by heating. 相反,即使常温下粘度低于IOmPa *s,通过冷却纺丝液本身或液体用柱状中空部H1,只要可以达到上述粘度范围内,则均可使用。 Conversely, even if the viscosity at room temperature below IOmPa * s, per se or the columnar hollows for liquid H1, can be achieved as long as the viscosity is within the above range, the spinning solution can be used by cooling. 本发明中的“粘度”是指使用粘度测定装置、在与纺丝时相同的温度下测定的lOOs—1时的值。 In the present invention, "viscosity" means a viscosity measuring apparatus, the value measured at the same temperature during spinning when lOOs-1. [0112] 由喷液部El喷出的纺丝液的喷出量根据纺丝液的粘度或气体流速变化,因此没有特别限定,优选0. I-IOOcm3/小时。 [0112] The viscosity of the spinning liquid or the gas flow rate variation, and therefore not particularly defined by the discharge amount of the spinning solution discharged El liquid discharge portion, preferably 0. I-IOOcm3 / hr.

[0113] 根据具有2处喷液部和I处喷气部的纺丝装置的前端部放大透视图一图4、以及图4的C平面切断图——图5(a)对本发明的纺丝装置进行说明。 [0113] The spinning apparatus has a front portion 2 at the liquid discharge portion and a portion of the jet at an enlarged perspective I 4, and C of FIG. 4 a plan view of FIG cutting - FIG. 5 (a) spinning apparatus of the present invention Be explained.

[0114] 本发明的纺丝装置中,第I喷液喷嘴Nl1和第2喷液喷嘴Nl2夹持喷气喷嘴Ng,其外壁面相接,其中,第I喷液喷嘴Nl1的一个端部具有可喷出纺丝液的第I喷液部El1,第2喷液喷嘴Nl2的一个端部具有可喷出纺丝液的第2喷液部El2,喷气喷嘴Ng的一个端部具有可喷出气体的喷气部Eg ;喷气喷嘴Ng的喷气部Eg位于第I喷液部El1、第2喷液部El2的上游一侧。 [0114] In the spinning apparatus of the present invention, the first liquid discharge nozzle Nl1 I and the second liquid nozzle jet air nozzle holder Ng, Nl2, contact the outer wall, wherein a discharge end portion of the first I Nl1 of liquid nozzle having I of spinning solution discharged liquid discharge section EI1, the second end portion of a liquid discharge nozzle having a second Nl2 liquid ejecting portion El2 spinning solution may be discharged, one end of the jet nozzle for discharging a gas having Ng jet portion Eg; Eg jet air nozzle unit is located on I Ng liquid discharge portion El1, the second upstream side of the liquid ejecting portion El2. 第I喷液喷嘴Nl1具有以第I喷液部El1为端部的第I液体用柱状中空部Hl1,第2喷液喷嘴Nl2具有以第2喷液部El2为端部的第2液体用柱状中空部Hl2,喷气喷嘴Ng具有以喷气部Eg为端部的气体用柱状中空部Hg。 I of liquid ejecting nozzle Nl1 having I of liquid ejecting portions El1 to I of the liquid end of the columnar hollow portions Hl1, the second liquid jet nozzle Nl2 having a second liquid discharge portion El2 of the second liquid end portion columnar the hollow portion Hl2, Ng jet nozzle having a gas jet portion Eg of the end portion of the columnar hollow Hg. 将上述第I液体用柱状中空部Hl1延长而成的第I液体假想柱状部Hvl1和将上述气体用柱状中空部Hg延长而成的气体假想柱状部Hvg只间隔相当于第I喷液喷嘴Nl1的壁厚与喷气喷嘴Ng的壁厚的和的距离,处于接近的状态,将上述第2液体用柱状中空部Hl2延长而成的第2液体假想柱状部Hvl2和将上述气体用柱状中空部Hg延长而成的气体假想柱状部Hvg只间隔相当于第2喷液喷嘴Nl2的壁厚和喷气喷嘴Ng的壁厚的和的距离,处于接近的状态。 I first liquid and the virtual column for the gas Hvl1 extended from the columnar hollow for gas (Hg) of the first virtual column I the columnar hollow for liquid Hvg portion Hl1 extended from only the discharge interval I corresponds to liquid nozzle Nl1 the wall thickness and wall thickness of the jet nozzle Ng distance, in proximity state, the second liquid is extended from the columnar hollow for liquid Hl2 second virtual column Hvl2 the gas and the columnar hollow portions extend Hg Hvg virtual column for gas formed and spaced a distance corresponding to only the second liquid nozzle jet air nozzle Nl2 Ng wall thickness and wall thickness, in a close state. 并且,上述第I液体用柱状中空部Hl1的第I喷出方向的中心轴Al1和气体用柱状中空部Hg的喷出方向的中心轴Ag为平行关系,上述第2液体用柱状中空部Hl2的第2喷出方向的中心轴Al2和气体用柱状中空部Hg的喷出方向的中心轴Ag为平行关系。 Further, the center axis of the first I Hl1 ejection direction of the liquid I of the columnar hollow for gas Al1 and ejection direction of the columnar hollow portions of Hg Ag central axis in parallel relation, the second liquid of the columnar hollow Hl2 Ag Al2 central axis and the central axis of the second gas discharging direction of the discharge direction with the columnar hollow portion Hg are parallel relationship. 并且,用与气体用柱状中空部Hg的中心轴Ag垂直的平面切断时,气体用柱状中空部Hg的切面的外形为圆形,液体用柱状中空部HlpHl2的切面的外形均为圆形,在任何组合中,处于只可引一条气体用柱状中空部Hg的切面的外周和液体用柱状中空部Hlp Hl2的切面的外周的距离最短的直线LI、L2的状态(参照图5(a))。 And, when cut by a plane perpendicular to the Ag columnar hollow for gas (Hg) of the central axis of the columnar hollow for gas Hg section shape is circular section of the columnar hollow for liquid HlpHl2 shape are circular, and any combination thereof, in an outer periphery of the shortest distance straight line LI can only be cited a columnar hollow portion of Hg cut gas outer circumference and columnar hollow for liquid portion Hlp Hl2 of facets, L2 state (see FIG. 5 (a)).

[0115] 因此,向如图4所示的纺丝装置的第I液体喷出喷嘴Nl1和第2喷液喷嘴Nl2供给纺丝液、向喷气喷嘴Ng供给气体,则纺丝液分别经由第I液体用柱状中空部Hl1、第2液体用柱状中空部Hl2,由第I喷液部El1、第2喷液部El2向第I液体用柱状中空部Hl1的第I轴向、第2液体用柱状中空部Hl2的第2轴向分别喷出,同时,气体经由气体用柱状中空部Hg由喷气部Eg向气体用柱状中空部Hg的轴向喷出。 [0115] Thus, Nl1 discharge nozzle and the second nozzle toward the first liquid ejecting liquid spinning apparatus I shown in FIG. 4 Nl2 spinning liquid is supplied, the supply gas to the jet nozzle Ng, respectively, the spinning dope through the first I HL1 columnar hollow for liquid portion, the second portion Hl2 columnar hollow for liquid, the first liquid discharge section EI1 I, the second liquid to the liquid discharge portion El2 I of part I with the axial direction of the columnar hollow portion HL1, the second columnar liquid the hollow portion of the second axial Hl2 are ejected, while the columnar hollow for gas through the gas discharge Hg axial columnar hollow portion with a Hg (Eg) to the gas jet. 该喷出的气体和喷出的各纺丝液均处于接近的状态,在各喷液部的附近,喷出气体的中心轴Ag与各喷出纺丝液的中心轴Al:、Al2均为平行关系,并且在C平面上,在任意组合中,喷出的气体和喷出的纺丝液的最近点均只有一处,即,任何纺丝液均呈一条直线状受到气体和伴随气流产生的剪切作用,形成细直径,同时分别沿第I液体用柱状中空部Hl1的第I轴向、第2液体用柱状中空部Hl2的第2轴向飞行,同时纺丝液的溶剂挥发,制成纤维。 The ejected gas and each of the spinning liquid are discharged in a state close to, in the vicinity of each of the liquid ejecting portions, the central axis of the discharge gas of Al and the central axis of each Ag discharged spinning solution:, Al2 are parallel relationship, and in the C-plane, in any combination thereof, and the nearest point of discharge gases are discharged dope only one, i.e., any spinning solution showed a linear air flow generated by the gas and the accompanying shearing, forming small diameter, the liquid simultaneously along the axial direction of the first I I Hl1 the columnar hollow portions, the second liquid with the second axial portion of the hollow columnar Hl2 flight, while the solvent volatilized dope prepared fibroblasts. 这样,图4的纺丝装置无需对各纺丝液施加高电压,因此是简单且能耗有优势的装置。 Thus, the spinning apparatus in FIG. 4 without applying a high voltage to each spinning liquid, and therefore is simple and advantageous energy means. 并且,可通过一个气流将两种纺丝液纺丝,形成纤维,可以减少气体量,因此可以抑制纤维的飞散,生产性良好地制备质地均匀的无纺布。 And, by a stream of two spinning solution spun to form a fiber, may reduce the amount of gas, it is possible to suppress scattering of the fibers, a nonwoven fabric uniform texture with good productivity prepared. 还可以减少气体量、无需使吸引装置大型化,因此能耗也有优势。 It can also reduce the amount of gas without the suction device size, power consumption and therefore have the advantage. 还无需增强吸引力,因此可以制备薄的无纺布乃至厚的无纺布。 Without further enhance the attractiveness, it can be prepared a thin nonwoven fabric and the nonwoven fabric thickness.

[0116] 第I喷液喷嘴Nl1、第2喷液喷嘴Nl2只要是可以喷出纺丝液即可,第I喷液部Elp第2喷液部El2的外形没有特别限定,例如可以是圆形、长圆形、椭圆形、多边形(例如三角形、四边形、六边形),优选为圆形,这样可以呈一条直线状受到气体和伴随气流的剪切作用,难以形成液滴。 [0116] I first liquid ejecting nozzle Nl1, Nl2 second liquid discharge nozzle as long as the spinning liquid is discharged to the first shape to the liquid ejection portion I Elp second liquid discharge portion El2 is not particularly limited, for example, may be circular , oblong, elliptical, polygonal (e.g., triangular, quadrangular, hexagonal shape), preferably circular, which can be single-linearly subjected to the shearing action of the gas and the accompanying airstream, it is difficult to form droplets. 即,如果第I喷液喷嘴Nl1、第2喷液喷嘴Nl2的外形为圆形,则在用与气体用柱状中空部Hg的中心轴Ag垂直的平面切断时,在任何组合中,均容易形成只可弓I 一条气体用柱状中空部Hg的切面的外周和液体用柱状中空部Hlp Hl2的切面的外周的距离最短的直线LI、L2的状态,因此喷出的纺丝液呈一条直线状受到气体或伴随气流的剪切作用,难以生成液滴。 That is, if the first discharge liquid nozzle Nl1 I, the second outer shape of the liquid ejecting nozzle Nl2 is circular, with the gas Hg plane perpendicular to the central axis of the columnar hollow portion Ag cutting, in any combination, are easily formed only the bow a columnar hollow for gas (Hg) of the section of the outer periphery and the liquid shortest distance straight line LI outer peripheral section of the columnar hollow portion Hlp Hl2 the state I L2, thus discharging spinning liquid is single-linearly subjected to gas stream or concomitant shearing difficult to generate a droplet. 第I喷液部El1和第2喷液部El2的外形可以是相同外形,也可以是不同的外形,优选均为圆形。 El1 liquid ejecting portion and the second liquid discharge portion El2 profile I, may be the same shape or may be different shapes, it is preferably circular.

[0117] 第I喷液部El1、第2喷液部El2的形状为多边形时,通过将多边形的一个角配置在喷气喷嘴Ng—侧,则可以呈一条直线状经受气体和伴随气流的剪切作用,难以形成液滴,因此优选。 [0117] Part I EI1 liquid discharge portion, the shape of the second liquid discharge portion El2 is a polygon, by the angle a polygon arranged in the air nozzle side Ng-, can be single-linearly subjected to the shearing of the gas and the accompanying airstream effect, it is difficult to form droplets, and therefore preferable. 即,在用与气体用柱状中空部Hg的中心轴Ag垂直的平面切断时,在任何组合中,只可引一条气体用柱状中空部Hg的切面的外周与第I液体用柱状中空部Hl1、第2液体用柱状中空部Hl2的切面的外周的距离最短的直线(图5(a)-(b)中的L1、L2),这样配置第I喷液喷嘴Nl1、第2喷液喷嘴Nl2,则纺丝液呈一条直线状受到气体和伴随气流的剪切作用,可稳定纺丝,难以形成液滴。 That is, when a gas shaft Ag perpendicular to the plane of the central columnar hollow portion of Hg cutting, in any combination, but may be cited a columnar hollow for gas portion cut the outer periphery of the first I liquid Hg with the columnar hollow portion HL1, the second liquid with the cut surface distance between the outer periphery of the columnar hollow portion Hl2 shortest straight line (FIG. 5 (a) - (b) in the L1, L2), so the configuration I, discharge liquid nozzle Nl1, the second liquid jet nozzle Nl2, the spinning liquid is single-linearly subjected to the shearing action of the gas and the accompanying airstream, stable spinning is difficult to form droplets. 因此,如果喷气部Eg的形状为圆形,则可以配置成使多边形状的第I喷液部El1、第2喷液部El2的边在喷气喷嘴Ng —侧(参照图5(e))。 Thus, if the shape of the jet portion of Eg is circular, polygonal shape may be configured so that the first I EI1 liquid discharge portion, the second liquid discharge portion in the air nozzle side El2 Ng - side (refer to FIG. 5 (e)).

[0118] 第I喷液部El1和第2喷液部El2的大小也没有特别限定,均优选为0. 01-20mm2,更优选为0. 01-2mm2。 [0118] and the liquid discharge portion El1 size I of the second liquid discharge portion El2 is not particularly limited, but are preferably 0. 01-20mm2, more preferably 0. 01-2mm2. 比0. Olmm2小,则难以喷出粘度高的纺丝液,超过20mm2,则难以使气体和伴随气流的作用呈一条直线状,无法稳定纺丝。 Less than 0. Olmm2, it is difficult to discharge the high viscosity of the spinning liquid more than 20mm2, it is difficult to effect gas and the accompanying airstream single-linearly, can not be stably spun.

[0119] 第I喷液喷嘴Nl1和第2喷液喷嘴Nl2可以是金属制,也可以是树脂制,其材料没有特别限定。 [0119] I, Nl1 liquid ejecting nozzle and the second liquid ejecting nozzle Nl2 may be made of metal, may be made of a resin, which material is not particularly limited. 还可以使用金属制或树脂制的管。 Use may also be made of metal or resin tube. 并且,图4中图示了圆柱状的第I喷液喷嘴Nl1和第2喷液喷嘴Nl2,也可以使用前端以一定斜度切断的锐角喷嘴。 And, 4 is illustrated in a cylindrical jet of liquid nozzle Nl1 I and the second liquid ejecting nozzle FIG Nl2, the distal end may be used to cut a slope at an acute angle of the nozzle. 该锐角喷嘴对于纺丝液粘度高时有效。 The acute angle of the nozzle is effective for high dope viscosity. 使用上述锐角喷嘴时,将尖的一侧作为喷气喷嘴一侧,则容易承受气体和伴随气流的剪切作用,可稳定制成纤维。 When using the nozzle at an acute angle, the tip side as one side of the air nozzle, and gas is easily subjected to the shearing action of the accompanying gas stream, the fiber can be made stable.

[0120] 图4图示了第I喷液喷嘴Nl1和第2喷液喷嘴Nl2共2个,喷液喷嘴不一定是2个,也可以是3个以上(参照图6)。 [0120] FIG 4 illustrates a first liquid discharge nozzle Nl1 I and the second liquid ejecting nozzle Nl2 of 2, the liquid ejection nozzle is not necessarily two and may be three or more (see FIG. 6). 该喷液喷嘴的个数越多,则可高效地使用气体,可以生产性良好地制备无纺布。 The more the number of liquid discharge nozzle, the gas can be used efficiently, it can be produced with good nonwoven fabric prepared.

[0121] 喷气喷嘴Ng只要可以喷出气体即可,对于喷气部Eg的形状没有特别限定,例如可以是圆形、长圆形、椭圆形、多边形(例如三角形、四边形、六边形),相对于喷气部无论如何配置各喷液部,都优选为圆形,这样可以使由喷气部喷出的气体和伴随气流产生的剪切力分别呈一条直线状作用于由各喷液部喷出的各纺丝液上,容易纺丝成细直径的纤维。 [0121] Ng jet nozzle can be as long as the discharge gas, the shape of the jet portion Eg is not particularly limited, for example, may be circular, oval, elliptical, polygonal (e.g., triangular, quadrangular, hexagonal shape), the relative in any case each section arranged to jet liquid ejecting portions are preferably circular, this could make the jet ejected by the shearing force of the gas and the accompanying air flow generated, respectively, as a single-linearly exerted on each of the liquid discharged from the discharge portion each spinning liquid, readily spun into small diameter fibers. 喷气部Eg的形状为多边形时,配置成使多边形的一个角为第I喷液喷嘴Nl1 —例、另一个角为第2喷液喷嘴Nl2—侧,则气体和伴随气流的剪切作用容易发挥作用。 Eg jet shape is polygonal portion, arranged so that a corner of the polygon is I ejection liquid nozzle Nl1 - embodiment, the second angle of the other liquid ejecting nozzle Nl2- side, the gas and the accompanying airstream easy to play shearing action effect. 即,如上所述,用与气体用柱状中空部Hg的中心轴Ag垂直的平面切断时,将第I喷液喷嘴犯”第2喷液喷嘴Nl2配置成在任何组合中,均只可引一条气体用柱状中空部Hg的切面的外周与第I液体用柱状中空部Hl1、第2液体用柱状中空部Hl2的切面的外周的距离最短的直线LI、L2 (参照图5 (c)-(d)),则纺丝液呈一条直线状经受气体和伴随气流的剪切作用,难以形成液滴。 That is, as described above, with the central plane of the columnar hollow for gas (Hg) perpendicular to the axis of Ag during cutting, the liquid ejecting nozzle made of I "2 Nl2 liquid ejecting nozzle arranged in any combination, may be cited are only a columnar hollow for gas (Hg) of the section of the outer periphery of the first I columnar hollow for liquid portion Hl1, the second liquid with the cut surface of the outer periphery of the shortest distance straight line LI columnar hollow portion Hl2 is, L2 (refer to FIG. 5 (c) - (d )), the spinning liquid is single-linearly subjected to the shearing action of the gas and the accompanying airstream, it is difficult to form droplets.

[0122] 喷气部Eg的大小没有特别限定,优选为0. 01-79mm2,更优选0. 015-20mm2。 Size [0122] Eg jet unit is not particularly limited, but preferably is 0. 01-79mm2, more preferably 0. 015-20mm2. 比0. Olmm2小,则剪切作用难以作用于喷出的各纺丝液全体,难以稳定地制成纤维,而超过79_2,则为了发挥剪切作用而必须有足够的风速,需要大量的气体,不经济。 Less than 0. Olmm2, it is difficult to shear acting on each spinning liquid discharged of all, it is difficult to stably prepare a fiber, 79_2 exceeds, the order to exert shearing action must have sufficient wind speed, it requires a lot of gas ,Uneconomical.

[0123] 喷气喷嘴Ng可以是金属制也可以是树脂制,其材料没有特别限定。 [0123] Ng jet nozzle may be metal or may be made of a resin, which material is not particularly limited. 还可以使用金属制或树脂制的管代替喷气喷嘴。 Use may also be made of metal or resin tube in place of the air nozzle.

[0124] 喷气喷嘴Ng中,喷气部Eg配置在位于第I喷液部El1和第2喷液部El2的上游一侧(纺丝液的供给侧)的位置,因此可以防止纺丝液裹到第I喷液部El1和第2喷液部El2的周边。 [0124] Ng jet nozzle, the jet unit position on the upstream side disposed Eg (the supply side of the spinning liquid) located on the I liquid discharge portion El1 and El2 the second portion of the liquid ejection, can be wrapped to prevent the spinning liquid I of the surrounding liquid discharge portion El1 and El2 the second portion of the liquid discharge. 因此,不会污染喷液部,可长时间纺丝。 Thus, no contamination of the liquid discharge portion, a long time spinning. 另外,喷气部Eg和第I喷液部El1或第2喷液部El2的距离没有特别限定,优选为IOmm以下,更优选5mm以下。 Further, from the jet portion and the second I Eg El1 liquid discharge portion or the second liquid discharge portion El2 is not particularly limited, but preferably IOmm or less, more preferably 5mm or less. 超过10臟,则第I喷液部El1或第2喷液部El2中的气体和伴随气流的剪切力不足,有难以形成纤维的倾向。 Dirty than 10, then the first liquid discharge portion El1 I or the second liquid discharge portion El2 gas and the accompanying airstream is less than shear, it tends to be difficult to form fibers. 喷气部Eg和第I喷液部El1以及第2喷液部El2的距离下限没有特别限定,喷气部Eg与第I喷液部El1以及第2喷液部El2可以不一致。 The lower limit of the distance (Eg) and I jet liquid ejecting portion El1 and El2 second liquid discharge portion is not particularly limited, and the second jet unit Eg I liquid ejecting portion El1 and El2 second liquid discharge portion can be different.

[0125] 喷气部Eg和第I喷液部El1或第2喷液部El2的距离可以相同也可以不同,如果相同,则可以使相同程度的剪切力作用于各纺丝液,可以稳定纺丝,因此优选。 [0125] (Eg) and the distance between the first jet liquid discharge portion El1 I or the second liquid discharge portion El2 may be the same or different, and if the same, allows the same degree of shearing force for each spinning liquid, spinning can be stably wire, is preferable.

[0126] 第I液体用柱状中空部Hl1和第2液体用柱状中空部Hl2是纺丝液的流经通路,形成纺丝液喷出时的形状,气体用柱状中空部Hg是气体的流经通路,形成气体喷出时的形状。 [0126] I of the columnar hollow for liquid Hl1 and the second columnar hollow for liquid flowing through the passage portion Hl2 spinning solution, the spinning liquid discharge shape is formed, columnar hollow for gas (Hg) is flowing through the gas passage formed in the gas discharge shape. 本发明中,第I液体用柱状中空部Hl1、第2液体用柱状中空部Hl2、气体用柱状中空部Hg均可形成柱状的纺丝液或气体,因此可以使气体和伴随气流的剪切作用充分作用于各纺丝液,可制成纤维。 In the present invention, the first section I HL1 columnar hollow for liquid, the second liquid Hl2 columnar hollow, columnar hollow for gas (Hg) of the spinning solution or the gas may be a columnar form, and the gas can be accompanied by the shearing action of the gas flow fully act on each spinning liquid, it can be made into fibers.

[0127] 将第I液体用柱状中空部Hl1延长而成的第I液体假想柱状部Hvl1是由第I喷液部El1喷出的纺丝液在刚喷出后的飞行通路,第2液体用柱状中空部Hl2延长而成的第2液体假想柱状部Hvl2是由第2喷液部El2喷出的纺丝液在刚喷出后的飞行通路,将气体用柱状中空部Hg延长而成的气体假想柱状部Hvg是由喷气部Eg喷出的气体在刚喷出后的喷出通路。 [0127] The first liquid I is extended from the columnar hollow for liquid Hl1 virtual I of the columnar portion by the first I Hvl1 dope discharge liquid discharged portion El1 flight path immediately after the discharge, the second liquid by Hl2 extended from the columnar hollow portion of the second liquid is ejected Hvl2 virtual columnar portion by the second liquid discharge portion El2 flight spinning liquid discharge passage immediately after the gas is extended from the columnar hollow for gas (Hg) Hvg virtual column is discharged by the gas jet discharge passages (Eg) immediately after discharged. 该第I液体假想柱状部Hvl1和气体假想柱状部Hvg的距离相当于第I喷液喷嘴Nl1的壁厚与喷气喷嘴Ng的壁厚的和,第2液体假想柱状部Hvl2和气体假想柱状部Hvg的距离相当于第I喷液喷嘴Nl1的壁厚与喷气喷嘴Ng的壁厚的和,它们的距离优选为2mm以下,更优选Imm以下。 Hvg distance I of the liquid and the virtual column for gas Hvl1 virtual column corresponds to the wall thickness and the wall thickness of the jet nozzle Nl1 of I Ng liquid ejecting nozzle and the second liquid and the virtual column for gas Hvl2 virtual column Hvg the distance corresponding to the first I Nl1 liquid nozzle jet air nozzle and the wall thickness and wall thickness Ng, their distance is preferably 2mm or less, and more preferably less Imm. 超过2mm,则气体和伴随气流的剪切力难以发挥作用,有难以形成纤维的倾向。 Than 2mm, the gas and the accompanying airstream is difficult to play the role of shear, it tends to be difficult to form fibers.

[0128] 该第I液体假想柱状部Hvl1、第2液体假想柱状部Hvl2、气体假想柱状部Hvg均是内部充实的柱状。 [0128] The second virtual column for liquid I Hvl1, the second virtual column for liquid Hvl2, virtual column for gas Hvg are substantial internal cylindrical. 例如,如果是圆柱状的第I或第2液体假想部用中空圆柱状的气体假想部覆盖的状态、或将圆柱状的气体假想部用中空圆柱状的第I或第2液体假想部覆盖的状态,则用与气体假想柱状部Hvg的中心轴Ag垂直的平面切断时,可引无数条在第I或第2液体假想部的切面的外周和气体假想部的切面的内周、或者气体假想部的切面的外周与第I或第2液体假想部的切面的内周的距离最短的直线,结果气体和伴随气流的剪切力在纺丝液的各个点上作用,纤维化不充分,液滴增多。 For example, if a cylindrical I or second liquid virtual unit with a state of the hollow cylindrical gas imaginary portion covered or cylindrical gas imaginary portion of a hollow cylindrical I or second liquid imaginary portion covering when the state, with the cutting plane of Hvg central axis Ag perpendicular to the gas virtual column, may be cited countless first I cut the inner peripheral section of the outer periphery of the gas imaginary portion or the second liquid imaginary part, or a gas imaginary the shortest distance straight line section of the inner periphery of the outer periphery of the first or the second liquid I of the imaginary part of the cut portion, the results of the gas stream and the accompanying shear forces on the respective point of action of the spinning solution, fibrosis insufficient liquid drops increased. 该“假想柱状部”是将喷嘴的内壁面延长而形成的部分。 The "virtual column" is the inner wall surface of the nozzle formed by the extension portion.

[0129] 并且,第I液体用柱状中空部Hl1的第I喷出方向中心轴Al1与气体用柱状中空部Hg的喷出方向中心轴Ag平行,第2液体用柱状中空部Hl2的第2喷出方向中心轴Al2与气体用柱状中空部Hg的喷出方向中心轴Ag平行,因此气体和伴随气流呈一条直线状作用于喷出的纺丝液上,可以稳定地形成纤维。 [0129] Further, the first portion I Hl1 columnar hollow for liquid ejection direction of the central axis I of the gas Al1 shaft Ag hollow portion parallel to the ejection direction of the center pillar Hg, and the second columnar hollow for liquid portion of the second ejection Hl2 an ejection direction of the central axis parallel to the direction of the central axis of Ag Al2 the columnar hollow for gas (Hg), the gas and the accompanying airstream single-linearly act on the spinning liquid discharged, the fibers can be stably formed. 例如,如果是将圆柱状的第I或第2液体用中空部用中空圆柱状的气体中空部覆盖的状态、或者将圆柱状的气体中空部用中空圆柱状的第I或第2液体用中空部覆盖的状态,这些中心轴一致,则无法使气体和伴随气流的剪切力呈一条直线状作用,纤维化不稳定,液滴增多。 For example, if a state in which the cylindrical I or the second liquid is covered with a hollow portion of a hollow cylindrical gas hollow portion, or a cylindrical gas of the hollow portion of a hollow cylindrical I or second liquid hollow state of the cover portion, the same central axis, and the gas can not shear the accompanying airstream single-linearly effect, increased fibrosis unstable droplets. 另外,如果这些中心轴位于交叉或者是扭转的位置,则气体和伴随气流所产生的剪切力不能发挥作用,或者即使作用也不均匀,因此难以稳定地形成纤维。 Further, if the center axis located at the intersection or twisted position, the gas and the accompanying airstream shear forces generated can not function, or even if the effect is not uniform, it is difficult to stably form the fibers. 该“平行”是指第I或第2液体用柱状中空部的喷出方向中心轴与气体用柱状中空部的喷出方向中心轴可以位于同一平面上,并且平行。 The term "parallel" refers to I or 2 with the liquid ejection direction of the central axis of the columnar hollow for gas ejection direction with the central axis of the columnar hollow portion may be located on the same plane and are parallel. 另外,“喷出方向中心轴”是将喷出部的中心与假想柱状部的横切面的中心连接而成的直线。 Moreover, "discharge direction of the central axis" is formed by a straight line connecting the center of the discharge cross-section of the central portion and the virtual columnar portion.

[0130] 本发明的纺丝装置中,在用与气体用柱状中空部Hg的中心轴Ag垂直的平面切断时,只可引一条气体用柱状中空部Hg的切面的外周与第I液体用柱状中空部Hl1的切面的外周的距离最短的直线LI,只可引一条气体用柱状中空部Hg的切面的外周与第2液体用柱状中空部Hl2的切面的外周的距离最短的直线L2。 [0130] In the spinning apparatus of the present invention, when a gas cutting plane Hg central axis Ag perpendicular to the columnar hollow portion only may be cited a columnar hollow for gas (Hg) of the section of the outer periphery of the first I liquid columnar section of the outer periphery of the shortest distance straight line LI hollow portion Hl1, and can only be cited a columnar hollow for gas (Hg) of the section of the outer periphery of the second liquid with the cut surface of the outer periphery of the shortest distance straight line L2 columnar hollow portion Hl2 of. 这样的由气体用柱状中空部Hg喷出的气体和伴随气流均呈一条直线状作用于由第I液体用柱状中空部Hl1喷出的纺丝液和由第2液体用柱状中空部Hl2喷出的纺丝液,可发挥剪切作用,因此不会生成液滴,可以稳定地纺丝。 Such a columnar hollow for gas (Hg) and the accompanying gas stream discharged showed a linear function and the columnar hollow for discharging the spinning liquid from the liquid Hl2 I of the columnar hollow Hl1 liquid discharged from the second the spinning solution may play a role in the shear and therefore do not generate liquid droplets can be stably spun. 例如,可引两条上述直线时,在一个点上作用的情形与在另一个点上作用的情形交互进行,无法稳定发挥剪切作用,结果形成液滴,无法稳定地纺丝。 For example, when the above two straight lines may be cited, in the case of a point of action acting in the case of another point interactions, can not be stably exert the shearing action, resulting in the formation of droplets can not be stably spun.

[0131] 图4中虽未图示,不过第I喷液喷嘴Nl1和第2喷液喷嘴Nl2与纺丝液贮存装置(例如注入机、不锈钢罐、塑料罐或氯乙烯树脂制、聚乙烯树脂制等树脂袋等)连接,喷气喷嘴Ng与气体供给装置(例如压缩机、气瓶、鼓风机等)连接。 [0131] Although not shown in FIG. 4, but the first I Nl1 liquid ejecting nozzle and the second liquid ejecting nozzle and a spinning liquid Nl2 storage means (e.g. injection, stainless steel cans, plastic containers, or vinyl chloride resin, polyethylene resin bags made of resin, etc.), the jet nozzle Ng gas supply means (e.g. a compressor, a gas cylinder, a blower, etc.).

[0132] 图4中只描述了I组纺丝装置,也可以配置2组以上的纺丝装置。 In [0132] FIG. 4 is described in group I spinning apparatus may be arranged or two or more sets of spinning apparatus. 通过配置2组以上的纺丝装置,可以进一步提高生产性。 By arranging two or more sets of spinning apparatus can be further improved productivity.

[0133] 图4中,是将第I喷液喷嘴犯”第2喷液喷嘴Nl2以及喷气喷嘴Ng固定的状态,只要满足上述的关系,并不限于图4的方案。例如,也可以是在具有高度差的基材上穿孔形成第I液体用柱状中空部Hl1、第2液体用柱状中空部Hl2、气体用柱状中空部Hg。还可以具备可自由调整第I喷液喷嘴Nl1的第I喷液部El1、第2喷液喷嘴Nl2的第2喷液部El2和/或喷气喷嘴Ng的喷气部Eg的位置的机构。 In [0133] FIG. 4, I is the discharge of liquid nozzle made "second liquid nozzle jet air nozzle and Nl2 Ng fixed, as long as the above relation is not limited to the embodiment of FIG. 4, for example, it may be in I have perforations forming the first columnar hollow for liquid Hl1, the second columnar hollow for liquid Hl2, columnar hollow for gas Hg. may also be provided with freely adjustable discharge liquid nozzle of the first I I Nl1 sprayed on a substrate height difference the liquid portion El1, Nl2 second liquid discharge nozzle portion El2 second liquid discharge and / or the position of the jet nozzle jet Ng mechanism portion of Eg.

[0134] 本发明的无纺布制备装置除以上所述的纺丝装置之外,还具备纤维的收集体,因此可以收集纤维,制备无纺布。 [0134] The nonwoven fabric manufacturing apparatus according to the present invention, in addition to the above-described spinning apparatus, further comprising collecting fibers, the fibers can be collected to prepare a nonwoven fabric. 本发明中,I个喷气喷嘴配置2个以上的喷液喷嘴,可以减少喷出气体量,由此可抑制纤维的飞散,可生产性良好地制备质地均匀的无纺布。 In the present invention, the I one jet nozzle arranged in two or more liquid discharge nozzles, the discharge gas amount can be reduced, whereby flying of the fiber can be suppressed, uniform texture nonwoven fabric prepared with good producibility. 还可以减少气体量,无需使吸引装置大型化,因此在能耗方面有优势。 It can also reduce the amount of gas, without the need to attract the size of the apparatus, and therefore have an advantage in terms of energy consumption. [0135] 该收集体只要可以将纤维直接汇集即可,可以使用与上述收集体同样的收集体,基于同样的理由,优选使用透气性的收集体、在收集体的与纺丝装置一侧相反的面设置吸引装置。 [0135] As long as the collecting fibers may be directly together it can be used with the same collecting collecting above, for the same reason, it is preferred to use air-permeable collecting, on a side opposite to the collecting and spinning apparatus suction means provided on the surface. 另外,收集体的配置位置也可以与上述收集体同样。 Further, the collecting location may be arranged similarly to the above-described collecting.

[0136] 将收集体与纺丝装置的喷气部Eg相对配置时,收集体与纺丝装置的第I喷液部El1和第2喷液部El2的距离根据纺丝液的喷出量或气体流速变化,因此没有特别限定,优选30-1000mm。 [0136] When the air jet spinning unit Eg collecting device disposed opposite, collecting the spinning liquid discharge device and the distance between the first portion El1 I El2 second liquid discharge portion according to the amount of discharge of the spinning solution or gas changes in flow rate, and therefore is not particularly limited, but preferably 30-1000mm. 低于30mm,则纺丝液的溶剂以未充分蒸发的状态汇集,汇集后无法保持纤维形状,无法获得无纺布。 Less than 30mm, the solvent of the spinning liquid is not sufficiently vaporized state together, the shape of the fibers can not be maintained together, the nonwoven fabric can not be obtained. 另外超过1000mm,则气体的气流混乱,纤维被切断,容易飞散。 In addition more than 1000mm, the chaos gas stream, the fiber is cut, it is likely to scatter.

[0137] 本发明的无纺布制备装置除上述收集体之外,基于与上述同样的理由,优选具备可以收藏纺丝装置和收集体的纺丝容器。 The nonwoven fabric manufacturing apparatus [0137] according to the present invention other than the above collecting, based on the same reason as described above, preferably includes a spinning apparatus can collect the spinning and collecting containers.

[0138] 制备无纺布时,纺丝装置的喷气部Eg的喷气流速、喷出方法、气体的种类可以与使用上述纺丝装置时的情形完全同样。 [0138] When preparing a nonwoven fabric, jet velocity jet (Eg) of spinning apparatus, ejection method, kind of gas may be the case when using the same spinning apparatus completely.

[0139] 可在本发明的制备方法中使用的各纺丝液只要是与上述同样的、可以将所需聚合物溶解于溶剂中形成的纺丝液即可,没有特别限定。 [0139] Each spinning liquid may be used in the production method of the present invention as long as similar to the above, the desired polymer can be dissolved in a solvent to form a spinning solution, and is not particularly limited. 还基于与上述同样的理由,纺丝时各纺丝液的粘度优选IO-IOOOOmPa • s的范围,更优选20_8000mPa • s的范围。 Further based on the same reason as above viscosity ranges preferably IO-IOOOOmPa • s each spinning liquid when spinning, more preferably of 20_8000mPa • s. 喷液部E1、第I喷液部El1和第2喷液部El2的纺丝液喷出量根据纺丝液的粘度或气体流速变化,因此没有特别限定,优选0. I-IOOcm3/小时。 Liquid ejecting portion E1, dope discharge amount of the first liquid discharge portion El1 I and the second liquid discharge portion El2 or gas depending on the viscosity of the spinning solution flow rate variation, and therefore is not particularly limited, but preferably 0. I-IOOcm3 / hr. 第I喷液部El1的喷出量和第2喷液部El2的喷出量可以相同也可以不同。 I discharge amount of the discharge amount of liquid discharge portion El1 and El2 second liquid discharge portion may be the same or different. 如果相同,则可以纺成纤维直径更为整齐的纤维。 If so, then the fiber diameter can be spun into fibers more neatly.

[0140] 本发明的其它无纺布的制备方法是使用上述纺丝装置,在2种以上的喷出条件下由喷液部喷出纺丝液、制成纤维、汇集在收集体上制备无纺布的方法。 [0140] Other methods of preparation of the nonwoven fabric of the present invention is the use of the above-described spinning apparatus, at least two kinds of spinning liquid discharge by the discharge condition of liquid discharge portion, into fibers, prepared together without collecting on spinning process fabric. 即,在图4中,第I喷液喷嘴Nl1和第2喷液喷嘴Nl2的喷出条件不同,并且作用于这些喷出的纺丝液的气体相同,因此可以纺丝成不同种类的纤维,结果可以制备不同种类的纤维均匀混合存在的、质地优异的无纺布。 That is, in FIG. 4, a first liquid discharge nozzle Nl1 I and the discharge condition of the second liquid discharge nozzle Nl2 different, and the gas discharge acting on the same spinning solution, and therefore can be spun into fibers of different types, results may be prepared by uniformly mixing different types of fibers are present, a nonwoven fabric excellent in texture.

[0141] 该“2种以上的喷出条件”是指不完全相同,例如有:喷液部的外形不同、喷液部的大小不同、喷液部至喷气部的距离不同、纺丝液的喷出量不同、纺丝液的浓度不同、构成纺丝液的聚合物不同、纺丝液的粘度不同、纺丝液的溶剂不同、构成纺丝液的聚合物为2种以上时其配合比例不同、构成纺丝液的溶剂为2种以上时其配合比例不同、纺丝液的温度不同、添加到纺丝液中的添加剂种类和/或量不同等它们的I种或2种以上的不同。 [0141] The "two or more discharge conditions" means not exactly the same, for example: shape different liquid ejecting portions, of different sizes liquid discharge portion, liquid discharge from the jet unit to a different portion of the spinning liquid the mixing proportions of the different discharge amounts, different concentration of the spinning solution, spinning solution composed of different polymers, different viscosity of the spinning solution, the spinning solution in different solvents, the polymer constituting the spinning solution is at least two kinds of time different, the solvent constituting the spinning solution is not less than two different mixing ratio, at different temperatures of the spinning solution, spinning solution added to the kinds of additives and / or different amounts thereof, etc. I or more different types of . 其中,构成纺丝液的聚合物相同但其浓度不同、或构成纺丝液的聚合物相同但其溶剂不同,则可以制备纤维直径不同的2种以上的纤维均匀混合存在、质地优异的无纺布;如果构成纺丝液的聚合物不同,则可以制备构成纤维的聚合物不同的2种以上的纤维均匀混合存在、质地优异的无纺布。 Wherein, the polymer constituting the spinning solution of the same concentration but different from, or the same polymer constituting the spinning solution but different solvents can be prepared in different fiber diameters or more kinds of fibers are uniformly mixed, excellent texture nonwoven cloth; if a different configuration of the polymer dope, may be prepared by uniformly mixing the fibers of two or more different fibers constituting the polymer is present, a nonwoven fabric excellent in texture.

[0142] 实施例 [0142] Example

[0143] 以下叙述本发明的实施例,本发明并不限定为以下实施例。 [0143] The following description of the embodiments of the present invention, the present invention is not limited to the following embodiments.

[0144] 实施例I [0144] Example I

[0145](纺丝液的制备) [0145] (Preparation of dope)

[0146] 将聚丙烯腈(了AF 'J 'yf制备)溶解于N,N-二甲基甲酰胺中,浓度为10%质量,制成纺丝液(粘度(温度:25°C ) :970mPa • s)。 [0146] Polyacrylonitrile (the AF 'J' yf preparation) was dissolved in N, N- dimethylformamide in a concentration of 10% by mass to prepare a spinning liquid (viscosity (temperature: 25 ° C): 970mPa • s).

[0147](无纺布制备装置的准备) [0147] (prepared nonwoven fabric manufacturing apparatus)

[0148] 准备包含图I所示的下述构成的制备装置。 [0148] Preparation was prepared comprising the following apparatus configuration shown in FIG. I. [0149] (I)纺丝液贮存部:注入机 [0149] (I) spinning liquid reservoir portion: implanter

[0150] (2)空气供给装置:压缩机 [0150] (2) The air supplying device: the compressor

[0151] (3)喷液喷嘴NI :金属制 [0151] (3) liquid ejecting nozzle NI: metal

[0152] (3)-I喷液部El :0. 4mm直径(截面积:0. 13mm2)的圆形 [0152] (3) -I liquid ejecting portion El:. 0 4mm diameter (cross-sectional area: 0 13mm2.) Circular

[0153] (3)-2液体用柱状中空部Hl :0. 4mm直径的圆柱状 [0153] (3) -2 columnar hollow for liquid portion Hl:. 0 4mm diameter cylindrical

[0154] (3) _3 喷嘴外径:0. 7mm [0154] (3) the outer diameter of the nozzle _3: 0 7mm.

[0155] (3)-4喷嘴个数:1个 [0155] (3) -4 Number of nozzles: 1

[0156] (4)喷气喷嘴Ng :金属制[0157] (4)-I喷气部Eg :0. 4mm直径(截面积:0. 13mm2)的圆形 [0156] (4) the jet nozzle Ng: metal [0157] (4) -I jet unit Eg:. 0 4mm diameter (cross-sectional area: 0 13mm2.) Circular

[0158] (4) -2气体用柱状中空部Hg :0. 4mm直径的圆柱状 [0158] (4) -2 columnar hollow for gas Hg:. 0 4mm diameter cylindrical

[0159] (4) _3 喷嘴外径:0. 7mm [0159] (4) 3 the outer diameter of the nozzle:. 0 7mm

[0160] (4)-4喷嘴个数:1个 [0160] (4) -4 Number of nozzles: 1

[0161] (4)-5位置:喷气部Eg配置成位于喷液部El的上游一侧5mm,与喷嘴的外壁面接触 [0161] (4) -5 positions: Eg jet unit arranged upstream of the liquid discharge portion is located in the El 5mm, contact with the outer wall surface of the nozzle

[0162] (5)液体假想柱状部Hvl与气体假想柱状部Hvg的距离:0. 3mm [0162] Hvg distance (5) with a liquid virtual column for gas Hvl virtual column:. 0 3mm

[0163] (6)喷液方向中心轴Al与喷气方向中心轴Ag :平行 [0163] (6) liquid ejecting direction of the central axis of the jet direction of the central axis Al and Ag: parallel

[0164] (7)用与气体用柱状中空部Hg的中心轴垂直的平面切断时,气体用柱状中空部Hg的切面的外周与液体用柱状中空部Hl的切面的外周的距离最短直线条数:1条 The outer periphery of the liquid when [0164] (7) with the cutting plane of the gas with the center of the columnar hollow Hg perpendicular to the axis, columnar hollow for gas (Hg) of the section of the shortest number of straight line distance section of the outer periphery of the columnar hollow portions Hl of : 1

[0165] (8)收集体:网(30目) [0165] (8) collecting: net (30 mesh)

[0166] ⑶-I与喷液部El的距离:300_ [0166] ⑶-I from the liquid discharge portion of the El: 300 F

[0167] (9)纤维吸引装置:鼓风机 [0167] (9) suction means fibers: Blower

[0168] (10)纺丝容器:容积Im3的丙烯酸酯容器 [0168] (10) spinning the container: container volume Im3 of acrylate

[0169] (IO)-I气体供给装置:精密空气发生装置((株)了U f制造,1400-HDR) [0169] (IO) -I gas supplying device: precision air generator ((strain) producing the U f, 1400-HDR)

[0170](无纺布的制备) [0170] (Preparation of non-woven fabric)

[0171] 在下述条件下,将纤维汇集在收集体(网)上,制备目付5g/m2的无纺布。 [0171] under the following conditions, the fibers collected on the collecting body (mesh) to prepare a nonwoven fabric basis weight 5g / m2 of.

[0172] (I)喷液喷嘴NI的喷出量:3cm3/小时 [0172] discharge amount (I) of the ejection liquid nozzle NI: 3cm3 / hr

[0173] (2)空气喷出流速:200m/s [0173] (2) an air jet flow speed: 200m / s

[0174] (3)网的移动速度:0.65mm/s The moving speed of [0174] (3) sites: 0.65mm / s

[0175] (4)纤维吸引条件:30cm/s [0175] (4) Fiber suction condition: 30cm / s

[0176] (5)气体供给条件:25°C、27% RH,Im3/ 分钟 [0176] (5) a gas supply conditions: 25 ° C, 27% RH, Im3 / min

[0177] 比较例I [0177] Comparative Example I

[0178](纺丝液的制备) [0178] (Preparation of dope)

[0179] 与实施例I同样地准备纺丝液。 [0179] the same manner as in Example I to prepare a spinning solution.

[0180](无纺布制备装置的准备) [0180] (prepared nonwoven fabric manufacturing apparatus)

[0181 ] 准备含有下述构成的制备装置。 [0181] Preparation preparation device comprising the following configuration.

[0182] (I)纺丝液贮存部:不锈钢罐 [0182] (I) spinning liquid reservoir portion: stainless steel tank

[0183] (2)空气供给装置:压缩机 [0183] (2) The air supplying device: the compressor

[0184] (3)喷液喷嘴NI :金属制 [0184] (3) liquid ejecting nozzle NI: metal

[0185] (3)-I喷液部:0. 7mm直径(截面积:0. 38mm2)的圆形[0186] (3)-2液体用柱状中空部:0. 7mm直径的圆柱状 [0185] (3) -I liquid discharge portion: 0 7mm diameter (cross-sectional area:. 0 38mm2). Circular [0186] (3) -2 columnar hollow for liquid: 0 7mm diameter cylindrical.

[0187] (3)-3 喷嘴外径:1. Imm [0187] (3) -3 nozzle outer diameter: 1 Imm.

[0188] (3)-4喷嘴个数:1个 [0188] (3) -4 Number of nozzles: 1

[0189] (4)喷气喷嘴Ng:金属制 [0189] (4) the jet nozzle Ng: metal

[0190] ⑷-I喷气部:2. Imm直径(截面积:3.46mm2)的圆形 [0190] ⑷-I jet unit: 2 Imm diameter (cross-sectional area: 3.46mm2). Round

[0191] (4)-2气体用柱状中空部:2. Imm直径的圆柱状 [0191] (4) -2 columnar hollow for gas:. 2 Imm diameter cylindrical

[0192] (4) -3 喷嘴外径:2. 5mm [0192] (4) -3 outer diameter of the nozzle:. 2 5mm

[0193] (4)-4喷嘴个数:1个[0194] (4)-5位置:喷气部位于喷液部的上游一侧5mm,与喷液喷嘴呈同心圆配置,结果,喷气部形成内径I. 1_、外径2. Imm的中空圆形状 [0193] (4) -4 Number of nozzles: 1 [0194] (4) -5 positions: jet liquid discharge portion is located upstream side portion 5mm, and the liquid ejecting nozzles arranged concentrically, a result, the jet portion is formed inside diameter I. 1_, the outer diameter of a hollow circular 2. Imm

[0195] (5)液体假想柱状部与气体假想柱状部的距离:0. 4mm [0195] (5) from the liquid and the virtual column for gas virtual columnar portion:. 0 4mm

[0196] (6)喷液方向中心轴与喷气方向中心轴:一致 [0196] (6) liquid ejecting direction of the central axis of the jet direction of the central axis: consistent

[0197] (7)用与气体用柱状中空部的中心轴垂直的平面切断时,气体用柱状中空部的切面的外周与液体用柱状中空部的切面的外周的距离最短直线条数:无数 [0197] (7) When used with gas central columnar hollow portion plane perpendicular to the axis of the cut, gas cut the outer periphery of the liquid columnar hollow portion of the shortest straight line number of the distance section of the outer periphery of the columnar hollow portion: myriad

[0198] (8)收集体:网(30目) [0198] (8) collecting: net (30 mesh)

[0199] ⑶-I与喷液部的距离:300_ [0199] ⑶-I from the liquid discharge portion: 300 F

[0200] (9)纤维吸引装置:鼓风机 [0200] (9) suction means fibers: Blower

[0201] (10)纺丝容器:容积Im3的丙烯酸酯容器 [0201] (10) spinning the container: container volume Im3 of acrylate

[0202] (10)-I气体供给装置:精密空气发生装置((株)r ^ f制造,1400-HDR) [0202] (10) -I gas supplying device: precision air generator ((Ltd.) r ^ f manufactured, 1400-HDR)

[0203](无纺布的制备) [0203] (Preparation of non-woven fabric)

[0204] 按下述条件纺丝,制备无纺布,但几乎未成纤维形状,无法制备无纺布。 [0204] spun under the following conditions to prepare a nonwoven fabric, but almost unsuccessfully fibrous, non-woven fabric can not be prepared.

[0205] (I)喷液喷嘴的喷出量:3cm3/小时 [0205] The discharge amount of the liquid ejecting nozzle (I): 3cm3 / hr

[0206] (2)空气喷出流速:200m/s [0206] (2) an air jet flow speed: 200m / s

[0207] (3)网的移动速度:0. 65mm/s The moving speed of [0207] (3) Network:. 0 65mm / s

[0208] (4)纤维吸引条件:30cm/s [0208] (4) Fiber suction condition: 30cm / s

[0209] (5)气体供给条件:25°C、27% RH,Im3/ 分钟 [0209] (5) a gas supply conditions: 25 ° C, 27% RH, Im3 / min

[0210] 实施例2 [0210] Example 2

[0211](纺丝液的制备) [0211] (Preparation of dope)

[0212] 将聚丙烯腈(了AF 'J 'yf制备)溶解于N,N-二甲基甲酰胺中,浓度为10.5%质量,制成纺丝液(粘度(温度:23°C ) : I IOOmPa • s)。 [0212] Polyacrylonitrile (the AF 'J' yf preparation) was dissolved in N, N- dimethylformamide at a concentration of 10.5% by mass to prepare a spinning liquid (viscosity (temperature: 23 ° C): I IOOmPa • s).

[0213](无纺布制备装置的准备) [0213] (prepared nonwoven fabric manufacturing apparatus)

[0214] 准备含有图4所示的以下构成的制备装置。 [0214] Preparation was prepared consisting apparatus shown in FIG. 4 contains.

[0215] (I)纺丝液贮存部:注入机 [0215] (I) spinning liquid reservoir portion: implanter

[0216] (2)空气供给装置:压缩机 [0216] (2) The air supplying device: the compressor

[0217] (3)第I喷液喷嘴Nl1 :金属制 [0217] (3) Part I liquid ejecting nozzle Nl1: metal

[0218] (3)-I第I喷液部El1 :0. 33mm直径(截面积:0. 086mm2)的圆形 [0218] (3) -I I of liquid ejecting portions El1: circular.: 0 33mm diameter (0 086mm2 cross-sectional area.)

[0219] (3)-2第I液体用柱状中空部Hl1 :0. 33mm直径的圆柱状 [0219] (3) -2 I of the columnar hollow for liquid Hl1:. 0 33mm diameter cylindrical

[0220] (3) -3 喷嘴外径:0. 64mm [0220] (3) -3 outer diameter of the nozzle:. 0 64mm

[0221] (4)第2喷液喷嘴Nl2 :金属制[0222] (4)-1第2喷液部El2 :0. 33mm直径(截面积:0. 086mm2)的圆形 [0221] (4) a second liquid ejecting nozzle Nl2: metal [0222] (4) -1 second liquid discharge portion El2: circular.: 0 33mm diameter (0 086mm2 cross-sectional area.)

[0223] (4)-2第2液体用柱状中空部Hl2 :0. 33mm直径的圆柱状 [0223] (4) -2 The second columnar hollow for liquid portion Hl2:. 0 33mm diameter cylindrical

[0224] (4) -3 喷嘴外径:0. 64mm [0224] (4) -3 outer diameter of the nozzle:. 0 64mm

[0225] (5)喷气喷嘴Ng :金属制 [0225] (5) the air nozzle Ng: metal

[0226] (5) -I喷气部Eg :0. 33mm直径(截面积:0. 086mm2)的圆形 [0226] (5) -I jet unit Eg: circular.: 0 33mm diameter (0 086mm2 cross-sectional area.)

[0227] (5)-2气体用柱状中空部Hg :0. 33mm直径的圆柱状 [0227] (5) -2 columnar hollow for gas Hg:. 0 33mm diameter cylindrical

[0228] (5) -3 喷嘴外径:0. 64mm [0228] (5) -3 outer diameter of the nozzle:. 0 64mm

[0229] (5) -4位置:喷气部Eg位于第I喷液部El1和第2喷液部El2的上游一侧2mm,配置成与喷嘴的外壁面接触 [0229] (5) -4-position: Eg jet portion located on the upstream side of the liquid discharge portions I El1 and El2 the second portion of the liquid discharge 2mm, arranged in contact with the outer wall surface of the nozzle

[0230] (6)-I第I液体假想柱状部Hvl1与气体假想柱状部Hvg的距离:0. 31mm [0230] (6) -I Hvg the distance between the first virtual column for liquid I Hvl1 virtual column for gas:. 0 31mm

[0231] (6)-2第I喷液方向中心轴Al1与喷气方向中心轴Ag :平行 [0231] (6) -2 I of the liquid ejection direction of the central axis of the jet direction of the central axis Al1 Ag: parallel

[0232] (6)-3用与气体用柱状中空部Hg的中心轴Ag垂直的平面切断时,气体用柱状中空部Hg的切面的外周与液体用柱状中空部Hl1的切面的外周的距离最短直线LI条数:1条 [0232] (6) -3 by gas cutting plane Hg central axis Ag perpendicular to the columnar hollow portion, columnar hollow for gas (Hg) of the section of the outer periphery of the liquid with the distance section of the outer periphery of the columnar hollow portion Hl1 shortest number of straight LI: 1

[0233] (7)-I第2液体假想柱状部Hvl2与气体假想柱状部Hvg的距离:0. 31mm [0233] (7) -I Hvg of liquid from the second columnar portion Hvl2 virtual virtual column for gas:. 0 31mm

[0234] (7)-2第2喷液方向中心轴Al2与喷气方向中心轴Ag :平行 [0234] (7) -2 of the second liquid jet and the jet direction of the central axis direction of the central axis Al2 Ag: parallel

[0235] (7)-3用与气体用柱状中空部Hg的中心轴Ag垂直的平面切断时,气体用柱状中空部Hg的切面的外周与第I液体用柱状中空部Hl2的切面的外周的距离最短直线L2条数:1条 [0235] (7) -3 cutting planar Ag perpendicular to the columnar hollow for gas (Hg) of the central axis, the gas (Hg) of the section of the outer periphery of the first I liquids cut the outer periphery of the columnar hollow portion Hl2 columnar hollow portion the shortest distance straight line L2 Article number: 1

[0236] (8)-I收集体:网(表面用氟树脂涂层的网形的传送带网)的收集面与各纺丝液的喷出方向中心轴呈直角配置 [0236] (8) -I collecting: the discharge direction of the central grid (mesh shape of the surface with a fluorine resin coating belt network) collecting face and the right angle configuration of the spinning liquid

[0237] (8) -2收集体与第I喷液部El1和第2喷液部El2的距离:150mm [0237] (8) -2 collecting distance I and the second liquid discharge portion El1 and El2 the second portion of the liquid discharge: 150mm

[0238] (9)吸引装置:真空箱(真空口径:50mm X 230mm) [0238] (9) suction means: a vacuum box (vacuum diameter: 50mm X 230mm)

[0239] (10)纺丝容器:容器Im3的丙烯酸酯容器 [0239] (10) spinning the container: the container vessel acrylate Im3

[0240] (10)-I气体供给装置:精密空气发生装置((株)r ^ f制造,1400-HDR) [0240] (10) -I gas supplying device: precision air generator ((Ltd.) r ^ f manufactured, 1400-HDR)

[0241] (10)-2排气装置:与真空箱(吸引装置)连接的风扇 [0241] (10) -2 exhaust: a vacuum box (suction means) connected to a fan

[0242](无纺布的制备) [0242] (Preparation of non-woven fabric)

[0243] 按下述条件,将纤维汇集在收集体(网)上,制备无纺布(平均纤维直径:约300nm),纤维不飞散,可以生产性良好地制备质地优异的无纺布。 [0243] under the following conditions, the fibers collected on the collecting body (mesh) to prepare a nonwoven fabric (average fiber diameter: about 300 nm), fibers from scattering, a nonwoven fabric having excellent texture can be produced with good productivity.

[0244] (I)第I喷液喷嘴Nl1和第2喷液喷嘴Nl2的喷出量:3g/小时 [0244] (I) I, the discharge amount of the liquid ejecting nozzle and the second discharge Nl1 Nl2 the liquid nozzle: 3g / hr

[0245] (2)空气喷出流速:250m/s [0245] (2) an air jet flow speed: 250m / s

[0246] (3)空气喷出量:I • 3L/分钟 [0246] (3) the amount of air ejected: I • 3L / min

[0247] (4)网的移动速度:30cm/分钟 [0247] moving speed (4) sites: 30cm / min

[0248] (5)真空箱的吸引条件:最大风量18m3/分钟(0. Ikff) [0248] suction condition (5) of the vacuum box: maximum air volume 18m3 / min (0. Ikff)

[0249] (6)气体供给条件:将温度23°C、湿度50%的气体以流量200L/分钟供给 [0249] (6) a gas supply conditions: a temperature of 23 ° C, humidity of 50% at a gas flow rate of 200L / min feed

[0250] (7)气体排气条件:201. 3L/分钟以上 [0250] (7) an exhaust gas conditions:. 201 3L / min or more

[0251] 实施例3 [0251] Example 3

[0252](纺丝液的制备) [0252] (Preparation of dope)

[0253] 将聚丙烯腈(了AF 'J 'yf制备)溶解于N,N_二甲基甲酰胺中,浓度为8%质量,准备纺丝液A (粘度(温度:23°C ) :500mPa • s)。 [0253] Polyacrylonitrile (the AF 'J' yf preparation) was dissolved in N, N_-dimethylformamide at a concentration of 8% by mass, to prepare a spinning solution A (viscosity (temperature: 23 ° C): 500mPa • s). [0254] 将聚丙烯腈(了;l F 'J ^ f制备)溶解于N,N-二甲基甲酰胺中,浓度为11%质量,准备纺丝液B (粘度(温度:23°C ) :1600mPa • S)。 [0254] Polyacrylonitrile (a; l F 'J ^ f prepared) was dissolved in N, N- dimethylformamide in a concentration of 11% by mass, to prepare a spinning liquid B (viscosity (temperature: 23 ° C ): 1600mPa • S).

[0255](无纺布制备装置的准备) [0255] (prepared nonwoven fabric manufacturing apparatus)

[0256] 与实施例2同样准备制备装置。 [0256] prepared in Example 2 was prepared device.

[0257](无纺布的制备) [0257] (Preparation of non-woven fabric)

[0258] 在下述条件下将纤维汇集在收集体(网)上制备无纺布,纤维不飞散,可以生产性良好地制备质地优异的无纺布。 [0258] under the following conditions on the nonwoven fabric prepared fibers together collecting (net), no scattering fiber, a nonwoven fabric having excellent texture can be produced with good productivity. 无纺布是平均纤维直径0. 2 ym的纤维和平均纤维直径0. 4um的纤维均匀混合存在的状态。 The average fiber diameter of nonwoven fabric fibers and 0. 2 ym average fiber diameter of 0. 4um uniformly mixed state.

[0259] (I)由第I喷液喷嘴Nl1喷出:将纺丝液A以3g/小时喷出 [0259] (I) by the first liquid ejecting nozzle Nl1 discharged I: The spinning solution A discharged at 3g / hr

[0260] (2)由第2喷液喷嘴Nl2喷出:将纺丝液B以3g/小时喷出 [0260] (2) Nl2 ejected by the second ejection liquid nozzle: discharging a spinning solution B at 3g / hr

[0261] (3)空气喷出流速:250m/s [0261] (3) an air discharge flow rate: 250m / s

[0262] (4)空气喷出量:I • 3L/分钟 [0262] (4) the amount of air ejected: I • 3L / min

[0263] (5)网的移动速度:30cm/分钟 [0263] moving speed (5) sites: 30cm / min

[0264] (6)真空箱的吸引条件:最大风量18m3/分钟(0. Ikff) [0264] suction condition (6) of the vacuum box: maximum air volume 18m3 / min (0. Ikff)

[0265] (7)气体供给条件:将温度23°C、湿度50%的气体以流量200L/分钟供给 [0265] (7) a gas supply conditions: 50% Temperature 23 ° C, humidity of the gas at a flow rate 200L / min feed

[0266] (8)气体排气条件:201. 3L/分钟以上 [0266] (8) the gas discharge conditions:. 201 3L / min or more

[0267] 实施例4 [0267] Example 4

[0268](纺丝液的制备) [0268] (Preparation of dope)

[0269] 将聚丙烯腈(了AF 'J yf制备)溶解于N,N_ 二甲基甲酰胺中,浓度为8%质量,准备纺丝液C (粘度(温度:23°C ) :500mPa • s)。 [0269] Polyacrylonitrile (the AF 'J yf preparation) was dissolved in N, N_-dimethylformamide at a concentration of 8% by mass, to prepare a spinning solution C (viscosity (temperature: 23 ° C): 500mPa • s).

[0270] 将聚偏氟乙烯系共聚物(了A > 7制备)溶解于N,N-二甲基甲酰胺中,浓度为20%质量,准备纺丝液D (粘度(温度:23°C ) :680mPa • S)。 [0270] The polyvinylidene fluoride-based copolymer (a A> Preparation 7) was dissolved in N, N- dimethylformamide at a concentration of 20% by mass, to prepare a spinning solution D (viscosity (temperature: 23 ° C ): 680mPa • S).

[0271](无纺布制备装置的准备) [0271] (prepared nonwoven fabric manufacturing apparatus)

[0272] 与实施例2同样准备制备装置。 [0272] prepared in Example 2 was prepared device.

[0273](无纺布的制备) [0273] (Preparation of non-woven fabric)

[0274] 在下述条件下将纤维汇集在收集体(网)上制备无纺布,纤维不飞散,可以生产性良好地制备质地优异的无纺布。 [0274] under the following conditions on the nonwoven fabric prepared fibers together collecting (net), no scattering fiber, a nonwoven fabric having excellent texture can be produced with good productivity. 无纺布是平均纤维直径0. 2 ym的丙烯纤维和平均纤维直径0. 2 ii m的聚偏氟乙烯系纤维均匀混合存在的状态。 The average fiber diameter of the nonwoven fabric is 0. 2 ym acrylic fibers and the average fiber diameter of 0. 2 ii m polyvinylidene fluoride fibers are present in a state uniformly mixed vinyl.

[0275] (I)由第I喷液喷嘴Nl1喷出:将纺丝液C以3g/小时喷出 [0275] (I) by the first I Nl1 discharged liquid ejecting nozzle: discharging a spinning solution C at 3g / hr

[0276] (2)由第2喷液喷嘴Nl2喷出:将纺丝液D以3g/小时喷出 [0276] (2) Nl2 ejected by the second ejection liquid nozzle: discharging a spinning solution D at 3g / hr

[0277] (3)空气喷出流速:250m/s [0277] (3) an air discharge flow rate: 250m / s

[0278] (4)空气喷出量:I • 3L/分钟 [0278] (4) the amount of air ejected: I • 3L / min

[0279] (5)网的移动速度:30cm/分钟 [0279] moving speed (5) sites: 30cm / min

[0280] (6)真空箱的吸引条件:最大风量18m3/分钟(0. Ikff) [0280] suction condition (6) of the vacuum box: maximum air volume 18m3 / min (0. Ikff)

[0281] (7)气体供给条件:将温度23°C、湿度50%的气体以流量200L/分钟供给 [0281] (7) a gas supply conditions: 50% Temperature 23 ° C, humidity of the gas at a flow rate 200L / min feed

[0282] (8)气体排气条件:201. 3L/分钟以上 [0282] (8) the gas discharge conditions:. 201 3L / min or more

[0283] 实施例5 [0283] Example 5

[0284](纺丝液的制备) [0284] (Preparation of dope)

[0285] 将聚丙烯腈(了AF 'J yf制备)溶解于N,N_二甲基甲酰胺中,浓度为8%质量,准备纺丝液E (粘度(温度:23°C ) :500mPa • s)。 [0285] Polyacrylonitrile (the AF 'J yf preparation) was dissolved in N, N_-dimethylformamide at a concentration of 8% by mass, to prepare a spinning solution E (viscosity (temperature: 23 ° C): 500mPa • s).

[0286] 将聚丙烯腈(了AF 'J 'y ★制备)溶解于二甲基亚砜中,浓度为8%质量,准备纺丝液F (粘度(温度:23°C ) :1800mPa • s)。 [0286] Polyacrylonitrile (the AF 'J' y ★ preparation) was dissolved in dimethyl sulfoxide in a concentration of 8% by mass, to prepare a spinning solution F (viscosity (temperature: 23 ° C): 1800mPa • s ).

[0287](无纺布制备装置的准备) [0287] (prepared nonwoven fabric manufacturing apparatus)

[0288] 与实施例2同样准备制备装置。 [0288] prepared in Example 2 was prepared device.

[0289](无纺布的制备) [0289] (Preparation of non-woven fabric)

[0290] 在下述条件下将纤维汇集在收集体(网)上制备无纺布,纤维不飞散,可以生产性良好地制备质地优异的无纺布。 [0290] under the following conditions on the nonwoven fabric prepared fibers together collecting (net), no scattering fiber, a nonwoven fabric having excellent texture can be produced with good productivity. 无纺布是平均纤维直径0. 2 ym的丙烯纤维和平均纤维直径0. 4 ii m的丙烯纤维均匀混合存在的状态。 Is a propylene nonwoven fibers are uniformly mixed state average fiber diameter of 0. 2 ym acrylic fibers and the average fiber diameter of 0. 4 ii m.

[0291] (I)由第I喷液喷嘴Nl1喷出:将纺丝液E以3g/小时喷出 [0291] (I) by the first I Nl1 discharged liquid ejecting nozzle: discharging a spinning solution E at 3g / hr

[0292] (2)由第2喷液喷嘴Nl2喷出:将纺丝液F以3g/小时喷出 [0292] (2) Nl2 ejected by the second ejection liquid nozzle: discharging a spinning solution F at 3g / hr

[0293] (3)空气喷出流速:250m/s [0293] (3) an air discharge flow rate: 250m / s

[0294] (4)空气喷出量:I • 3L/分钟 [0294] (4) the amount of air ejected: I • 3L / min

[0295] (5)网的移动速度:30cm/分钟 [0295] moving speed (5) sites: 30cm / min

[0296] (6)真空箱的吸引条件:最大风量18m3/分钟(0. Ikff) [0296] suction condition (6) of the vacuum box: maximum air volume 18m3 / min (0. Ikff)

[0297] (7)气体供给条件:将温度23°C、湿度50%的气体以流量200L/分钟供给 [0297] (7) a gas supply conditions: 50% Temperature 23 ° C, humidity of the gas at a flow rate 200L / min feed

[0298] (8)气体排气条件:201. 3L/分钟以上 [0298] (8) the gas discharge conditions:. 201 3L / min or more

Claims (13)

1.纺丝装置,该纺丝装置具有I处以上可喷出纺丝液的喷液部,和I处位于上述任意喷液部上游一侧、可喷出气体的喷气部,该纺丝装置满足以下条件: (1)具有以喷液部作为端部的液体用柱状中空部(Hl); (2)具有以喷气部作为端部的气体用柱状中空部(Hg); (3)将液体用柱状中空部(Hl)延长而成的液体假想柱状部(Hvl)与将气体用柱状中空部(Hg)延长而成的气体假想柱状部(Hvg)相接近; (4)液体用柱状中空部(Hl)的喷出方向中心轴与气体用柱状中空部(Hg)的喷出方向中心轴平行; (5)用与气体用柱状中空部(Hg)的中心轴垂直的平面切断时,只可引一条气体用柱状中空部(Hg)的切面的外周和液体用柱状中空部(Hl)的切面的外周的距离最短的直线。 1. The spinning apparatus, the spinning apparatus has a liquid ejecting portion capable of ejecting a spinning solution above at I, and I located at the upstream side of any of the liquid ejection portion capable of ejecting a gas jet portion of the spinning apparatus satisfy the following conditions: (1) has a liquid ejecting portion as the liquid end of the columnar hollow portions (Hl); (2) has a jet section as the gas end of the columnar hollow portion (Hg); (3) liquid virtual column for liquid (HVL) is extended from the columnar hollow portion (on Hl) and virtual column for gas (Hvg) gas extended from the columnar hollow portion (Hg) close; (4) of the columnar hollow for liquid (on Hl) of the gas discharging direction of the central axis parallel to the central axis of the ejection direction of the columnar hollow portion (Hg); and (5) with the cutting plane of the center of the columnar hollow for gas (Hg) perpendicular to the axis, only a lead cut surface with an outer periphery of the gas and the liquid columnar hollow portion (Hg) is cut from an outer periphery of a columnar hollow portion (on Hl) of the shortest straight line.
2.权利要求I所述的纺丝装置,其中,喷液部为I处。 Spinning apparatus according to claim I, wherein the liquid discharge portion is I.
3.无纺布制备装置,其特征在于:除权利要求2所述的纺丝装置之外,还具备纤维的收集体。 3. The nonwoven fabric manufacturing apparatus, wherein: in addition to the spinning apparatus as claimed in claim 2, further comprising collecting fibers.
4.无纺布的制备方法,其特征在于:使用权利要求3所述的无纺布制备装置,由纺丝装置的喷气部喷出流速IOOm/秒以上的气体。 A method of preparing a nonwoven fabric, wherein: the nonwoven fabric manufacturing apparatus according to claim 3 uses, IOOm / sec or more jets of gas from the discharge portion of the flow rate of the spinning apparatus.
5.权利要求I所述的纺丝装置,其中,喷液部为2处以上,满足下述条件: (1)分别具有以各喷液部作为端部的液体用柱状中空部; (2)具有以喷气部作为端部的气体用柱状中空部; (3)将液体用柱状中空部延长而成的各液体假想柱状部与将气体用柱状中空部延长而成的气体假想柱状部分别相接近; (4)液体用柱状中空部的各喷出方向中心轴与气体用柱状中空部的喷出方向中心轴分别平行; (5)用垂直于气体用柱状中空部中心轴的平面切断时,在任何的组合下,只可以引一条气体用柱状中空部的切面的外周和液体用柱状中空部的切面的外周的距离最短的直线。 Spinning apparatus according to claim I, wherein the liquid discharge portion is at least 2, satisfy the following conditions: (1) each having a columnar hollow portion in each of the liquid jet as the liquid portion of the end portion; (2) a gas jet portion having an end portion with the columnar hollow portions; imaginary cylindrical portion (3) extended from the liquid portion of each columnar hollow for liquid and the virtual column for gas is extended from the columnar hollow for gas respectively close ; (4) the central axis of the liquid discharge direction of the columnar hollow portions are parallel with each of the gas discharging direction of the central axis of the columnar hollow portion; (5) to the plane of the cutting portion columnar hollow for gas by vertical central axis, in any combination, a gas may be introduced only in the outer peripheral section and the liquid portion with the columnar hollow section of the hollow columnar outer circumferential distance of the shortest straight line portion.
6.权利要求5所述的纺丝装置,其特征在于:各喷液部的外形为圆形。 6. The spinning apparatus according to claim 5, wherein: each of the liquid ejecting section shape is circular.
7.权利要求5所述的纺丝装置,其特征在于:喷气部的外形为圆形。 Spinning apparatus according to claim 5, wherein: the shape of a circular jet unit.
8.无纺布制备装置,其特征在于:该无纺布制备装置除权利要求5-7中任一项所述的纺丝装置之外,还具备纤维的收集体。 8. The nonwoven fabric manufacturing apparatus, wherein: the nonwoven fabric manufacturing apparatus in addition to the spinning apparatus according to any of claims 5-7, further comprising collecting fibers.
9.无纺布的制备方法,其特征在于:该制备方法是使用权利要求8所述的无纺布制备装直。 9. A method of preparing a nonwoven fabric, wherein: the preparation are prepared using the nonwoven fabric as claimed in claim 8, said means straight.
10.无纺布的制备方法,其特征在于:使用权利要求8所述的无纺布制备装置,以2种以上的喷出条件,由上述喷液部喷出纺丝液,制成纤维,汇集在收集体上。 10. A method of preparing a nonwoven fabric, wherein: said nonwoven fabric manufacturing apparatus as claimed in claim 8, used to two or more discharge conditions, the discharge by the liquid discharge portion spinning solution into fibers, collected on the collecting body.
11.权利要求10所述的无纺布的制备方法,其特征在于:喷出浓度不同的纺丝液。 11. The nonwoven fabric production method according to claim 10, wherein: different concentrations of discharging a spinning solution.
12.权利要求10所述的无纺布的制备方法,其特征在于:喷出聚合物不同的纺丝液。 12. A method of preparing a nonwoven fabric according to claim 10, wherein: different polymer dope discharged.
13.权利要求10所述的无纺布的制备方法,其特征在于:喷出溶剂不同的纺丝液。 13. A method of preparing a nonwoven fabric according to claim 10, wherein: the discharge dope different solvents.
CN 200910141806 2008-05-28 2009-05-26 Spinning apparatus, and apparatus and process for manufacturing nonwoven fabric CN101629325B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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KR20160009584A (en) 2013-05-15 2016-01-26 니혼바이린 가부시기가이샤 Base material for gas diffusion electrode
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3954361A (en) 1974-05-23 1976-05-04 Beloit Corporation Melt blowing apparatus with parallel air stream fiber attenuation
US4168138A (en) 1977-06-01 1979-09-18 Celanese Corporation Spray spinning nozzle using parallel jet flow
US5476616A (en) 1994-12-12 1995-12-19 Schwarz; Eckhard C. A. Apparatus and process for uniformly melt-blowing a fiberforming thermoplastic polymer in a spinnerette assembly of multiple rows of spinning orifices
WO1999034039A1 (en) 1997-12-31 1999-07-08 Kimberly-Clark Worldwide, Inc. Die head assembly, apparatus, and process for meltblowing a fiberforming thermoplastic polymer
CN100999827A (en) 2006-12-19 2007-07-18 张爱华 Preparation process of hollow superfine fibre through emulsion

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3305809A1 (en) * 1983-02-19 1984-08-23 Bayer Ag Method and apparatus for disintegration of melt
JP2602460B2 (en) * 1991-01-17 1997-04-23 三菱化学株式会社 Preparation of fiber precursor metal compound using spinning nozzles and spinning nozzles and manufacturing method of the inorganic oxide fibers
US6695992B2 (en) * 2002-01-22 2004-02-24 The University Of Akron Process and apparatus for the production of nanofibers
US7018188B2 (en) * 2003-04-08 2006-03-28 The Procter & Gamble Company Apparatus for forming fibers
KR100578764B1 (en) * 2004-03-23 2006-05-11 김학용 A bottom-up electrospinning devices, and nanofibers prepared by using the same

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3954361A (en) 1974-05-23 1976-05-04 Beloit Corporation Melt blowing apparatus with parallel air stream fiber attenuation
US4168138A (en) 1977-06-01 1979-09-18 Celanese Corporation Spray spinning nozzle using parallel jet flow
US5476616A (en) 1994-12-12 1995-12-19 Schwarz; Eckhard C. A. Apparatus and process for uniformly melt-blowing a fiberforming thermoplastic polymer in a spinnerette assembly of multiple rows of spinning orifices
WO1999034039A1 (en) 1997-12-31 1999-07-08 Kimberly-Clark Worldwide, Inc. Die head assembly, apparatus, and process for meltblowing a fiberforming thermoplastic polymer
CN100999827A (en) 2006-12-19 2007-07-18 张爱华 Preparation process of hollow superfine fibre through emulsion

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