WO2014104124A1 - 中空糸条物搬送用ロール、中空糸条物の製造方法、中空糸膜シート状物の製造方法及び製造装置 - Google Patents
中空糸条物搬送用ロール、中空糸条物の製造方法、中空糸膜シート状物の製造方法及び製造装置 Download PDFInfo
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- WO2014104124A1 WO2014104124A1 PCT/JP2013/084735 JP2013084735W WO2014104124A1 WO 2014104124 A1 WO2014104124 A1 WO 2014104124A1 JP 2013084735 W JP2013084735 W JP 2013084735W WO 2014104124 A1 WO2014104124 A1 WO 2014104124A1
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- Prior art keywords
- hollow fiber
- roll
- hollow
- rolls
- sheet
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H57/00—Guides for filamentary materials; Supports therefor
- B65H57/14—Pulleys, rollers, or rotary bars
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H57/00—Guides for filamentary materials; Supports therefor
- B65H57/16—Guides for filamentary materials; Supports therefor formed to maintain a plurality of filaments in spaced relation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
- B65H59/10—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by devices acting on running material and not associated with supply or take-up devices
- B65H59/18—Driven rotary elements
Definitions
- the present invention relates to a roll for transporting a hollow fiber article (hollow fiber membrane or the like) and a method for producing a hollow fiber article using the roll.
- this invention relates to the manufacturing method and manufacturing apparatus of the hollow fiber membrane sheet-like material which comprise the hollow fiber membrane module used for solid-liquid separation operations, such as water treatment.
- Hollow fiber articles such as hollow fiber membranes are obtained, for example, by spinning by various spinning methods using a resin composition mainly composed of a polymer as a stock solution, and then shaping (Patent Documents 1 to 3, etc.) ). Furthermore, these hollow fiber articles are processed into hollow fiber membrane modules having various forms, such as a form in which hollow fiber membranes are bundled, and a form in which hollow fiber membranes are formed into sheets and laminated ( (See Patent Documents 1 and 2).
- the hollow fiber membrane when the hollow fiber membrane is transported in the process (washing, drying, bundling, etc.) after spinning the hollow fiber membrane (hollow fiber), it is driven by the driving force of a motor or the like connected to the rotating shaft.
- a rotating drive roll, a free roll rotating by the force of the conveyed hollow fiber membrane, and the like are used. While the hollow fiber membrane is conveyed along the yarn path formed by arranging these rolls in the space, various processes in each step are performed.
- the hollow fiber membrane feed speed Va by the drive roll 1110 there may be a slight difference between the feed rate Vb of the hollow fiber membrane by the drive roll 1120.
- the difference between the feed speed Va and the feed speed Vb is the difference between the outer diameters of the drive rolls 1110 and 1120, the difference in the rotational speed of the motors of the drive rolls 1110 and 1120, and the longitudinal direction of the hollow fiber membrane. This is due to spots of diameter and roundness.
- the slight difference between the feed speed Va and the feed speed Vb accumulates little by little, troubles such as the hollow fiber membrane being excessively loosened and coming off from the drive roll may occur, or conversely, It may cause damage to the hollow fiber membrane.
- the above problem can be solved by controlling the motor with constant torque.
- the motor is controlled at a constant torque, the total tension of the two or more hollow fiber membranes is controlled to be constant.
- the tension of the yarn membrane cannot be controlled. Therefore, when the degree of fluctuation of the tension applied to the hollow fiber membrane is different for each hollow fiber membrane, the fluctuation of the tension applied to the hollow fiber membrane cannot be reduced for each hollow fiber membrane.
- hollow fiber membrane module what has various forms, such as the form which bundled the hollow fiber membrane and the form which laminated
- a hollow fiber membrane module in a form in which hollow fiber membrane sheet-like materials are laminated is obtained by fixing a plurality of laminated hollow fiber membrane sheet-like materials with a housing.
- the housing is arranged such that both ends of the plurality of hollow fiber membranes are accommodated inside the housing.
- a hollow fiber membrane module is a sheet in which hollow fiber membranes are cut into a predetermined length in a state where they are arranged at a desired pitch, and the hollow fiber membranes are fused and bonded together. It is manufactured by laminating the objects.
- a hollow fiber membrane is spirally wound around a drum or a saddle frame without a gap, and at least a part thereof is heat-sealed, and the heat-sealed portion is cut.
- a method for producing a hollow fiber membrane sheet and a method for producing a hollow fiber membrane sheet using a Russell knitting machine are known (see Patent Documents 4 and 5).
- a hollow fiber membrane that can be continuously supplied to two or more rolls is wound so as to surround the two or more rolls, and a hollow fiber membrane adjacent to a tip portion of the wound hollow fiber membrane is provided.
- the hollow fiber is formed by rotating the two or more rolls to wind up the hollow fiber membrane, and then fixing the hollow fiber membrane in a sheet shape in the width direction to form a fixed portion, and then cutting along the fixed portion.
- a method for producing a membrane sheet is known (see Patent Document 6).
- JP-A-4-310219 International Publication Number WO2009 / 142279 Japanese Patent Laid-Open No. 2-160025 JP 2004-216276 A JP 2008-196066 A International Publication Number WO2012 / 036235
- the present invention has been made in consideration of such circumstances, and the present invention provides a dancer roll and a tension fluctuation for reducing a fluctuation in tension applied to a hollow fiber article (hereinafter also simply referred to as a yarn article).
- a hollow fiber that can relieve fluctuations in tension applied to each hollow fiber article even when two or more hollow fiber articles are conveyed simultaneously without adding a relaxation device to the yarn path.
- a roll for roll transportation and a method for producing a hollow fiber using the roll are provided.
- An object of the present invention is to provide a production method and a production apparatus for a sheet-like product (for example, a hollow-fiber membrane sheet-like product) of a hollow fiber product having a stable length.
- a roll for carrying a hollow fiber article comprising a roll main body and tension fluctuation relaxation means.
- the tension fluctuation relaxation means is configured to change a distance from a rotation axis of the roll body to the hollow fiber article in contact with the tension fluctuation relaxation means.
- the roll for conveying hollow fiber articles as described.
- the hollow fiber article conveying roll according to any one of [1] to [9], wherein the at least one roll including the following steps (i) to (iv) and used in the step is: A method for producing a hollow fiber sheet.
- a hollow yarn is wound so as to surround two or more rolls, and a tip portion of the wound hollow yarn is connected to an adjacent hollow yarn to form a ring-shaped portion. Or a connection step in which two or more rolls are hung with a ring-shaped portion prepared in advance, and the tip of the hollow fiber article is connected to the ring-shaped portion; (Ii) a winding step in which at least one of the two or more rolls is rotated and a hollow fiber is wound around the two or more rolls; (Iii) a fixing step in which the hollow yarn wound around the two or more rolls is fixed in a sheet shape in the width direction to form a fixing portion; (Iv) A cutting step in which a sheet-like material is obtained by cutting at the fixing portion and connecting the hollow fiber material in the width direction at the end portion; [12] The method for producing a hollow fiber sheet-like product according to [11], wherein the hollow fiber product is a hollow fiber membrane.
- the hollow fiber article conveying roll according to any one of [1] to [9], wherein at least one roll including the following means (v) to (ix) and used in the step is:
- An apparatus for producing a hollow fiber sheet (V) two or more rolls and supply means configured to continuously supply the hollow fiber product to the two or more rolls; (Vi) A hollow yarn that can be continuously supplied is wound around two or more rolls so as to surround the two or more rolls, and a hollow adjacent to the tip of the wound hollow fiber material. It is configured to form a ring-shaped portion by connecting with a yarn, or a ring-shaped portion created in advance is hung on two or more rolls, and the tip of the hollow yarn is connected to the ring-shaped portion.
- a connection means configured to: (Vii) driving means configured to rotate at least one of the two or more rolls and wind a hollow fiber around the two or more rolls; (Ix) fixing means configured to fix the hollow fiber in a sheet shape in the width direction of the two or more rolls; [14] The apparatus for producing a hollow fiber sheet-like product according to [13], wherein the supply means is a bobbin unwinding device. [15] The apparatus for producing a hollow fiber sheet product according to [13] or [14], wherein the hollow fiber material is a hollow fiber membrane. [16] Use as a hollow fiber material carrying roll that includes a roll body and tension fluctuation relaxation means and conveys a hollow fiber material.
- a roll for conveying a yarn includes a roll body, and a roll for conveying a yarn, comprising: a roll main body; and a tension fluctuation relaxation unit that relaxes a fluctuation in tension applied to the yarn for each of the yarns.
- a tension fluctuation relaxation unit that relaxes a fluctuation in tension applied to the yarn for each of the yarns.
- ⁇ 3> Distance from the rotation axis of the roll body to the yarn contacted with the tension variation alleviating means so that the tension variation relaxing means relaxes the variation according to the tension variation applied to the yarn
- ⁇ 4> The yarn material conveying roll according to any one of ⁇ 1> to ⁇ 3>, wherein the tension fluctuation relaxation means is made of a flexible material.
- Two or more recesses extending in parallel with the rotation axis are formed on the outer peripheral surface of the roll main body, and the lower portion of the tension fluctuation reducing means made of the flexible material is fitted into the recess.
- ⁇ 6> The film according to any one of ⁇ 1> to ⁇ 3>, wherein the tension fluctuation alleviating means is a film-like object disposed so as to be separated from the outer peripheral surface of the roll body at a position where the tension fluctuation relieving unit comes into contact.
- ⁇ 7> The yarn according to any one of ⁇ 1> to ⁇ 3>, wherein the tension fluctuation alleviating means is a protrusion having a surface in contact with the yarn that is made of a low friction material.
- ⁇ 8> The yarn material transport roll according to any one of ⁇ 1> to ⁇ 7>, wherein the roll is a drive roll.
- ⁇ 9> The yarn conveyance roll according to any one of ⁇ 1> to ⁇ 8>, wherein the yarn is a hollow yarn.
- ⁇ 11> The yarn conveyance roll according to any one of ⁇ 1> to ⁇ 10>, wherein a guide groove for the yarn is formed on an outer peripheral surface of the roll body.
- a method for producing a yarn product wherein the roll for conveying a yarn product according to any one of ⁇ 1> to ⁇ 11> is used when transported in a uniform manner.
- the roll for transporting hollow fiber of the present invention is a roll for simultaneously transporting two or more hollow fiber articles, and the roll is composed of a roll main body and the hollow thread for each hollow fiber article. It is characterized by comprising tension fluctuation relaxation means for relaxing fluctuations in tension applied to an object.
- the tension fluctuation relaxation means is preferably provided at two or more locations on the outer peripheral surface of the roll main body at intervals in the circumferential direction. More preferably, the tension fluctuation relaxation means are provided at equal intervals in the circumferential direction.
- the tension fluctuation mitigating means is configured to set a distance from a rotating shaft of the roll body to the hollow yarn article in contact with the tension fluctuation mitigating means so as to mitigate the fluctuation according to a tension fluctuation applied to the hollow fiber article. It is preferable to change.
- the tension fluctuation relaxation means is preferably made of a flexible material. Two or more recesses extending in parallel with the rotation axis are formed on the outer peripheral surface of the roll body, and the lower part of the tension fluctuation relaxation means made of the flexible material is fitted in the recess. preferable.
- the tension fluctuation mitigating means may be a film-like material arranged so as to be separated from the outer peripheral surface of the roll body at a location where it comes into contact with the hollow fiber material.
- the tension variation alleviating means may be a protrusion having a surface in contact with the hollow fiber material made of a low friction material.
- the roll is preferably a drive roll.
- the hollow fiber article is preferably a hollow fiber membrane.
- a guide groove for the hollow fiber article may be formed on the outer peripheral surface of the roll body.
- the method for producing a hollow fiber product of the present invention is a method for producing a hollow fiber product comprising a step of spinning a resin composition to obtain a fiber-shaped product, wherein the product or the product is provided with the product.
- the hollow yarn article conveying roll of the present invention is used.
- the hollow fiber article is preferably a hollow fiber membrane.
- ⁇ 1 A method for producing a hollow fiber membrane sheet-like product, comprising the following steps (i) to (iv), wherein at least one roll used in the step is a roll having tension fluctuation relaxation means.
- a hollow fiber membrane is wound so as to surround two or more rolls, and a tip portion of the wound hollow fiber membrane and an adjacent hollow fiber membrane are connected to form a ring-shaped portion, or 2 A connecting step in which a ring-shaped portion prepared in advance is hung on two or more rolls, and the tip of the hollow fiber membrane is connected to the ring-shaped portion;
- a winding step in which at least one of the two or more rolls is rotated and a hollow fiber membrane is wound around the two or more rolls;
- a fixing step in which the hollow fiber membrane wound around the two or more rolls is fixed in a sheet shape in the width direction to form a fixing portion;
- a cutting step in which a sheet-like material is obtained by cutting at the fixed portion and
- ⁇ 3 The tension fluctuation relaxation means changes the distance from the rotating shaft of the roll to the hollow fiber membrane in contact with the tension fluctuation relaxation means in accordance with the fluctuation of the tension applied to the hollow fiber membrane.
- ⁇ 4 The method for producing a hollow fiber membrane sheet-like product according to any one of ⁇ 1 >> to ⁇ 3 >>, wherein the tension fluctuation relaxation means is made of a flexible material.
- ⁇ 5 Two or more recesses extending in parallel to the rotation axis of the roll are formed on the outer peripheral surface of the roll, and tension fluctuation relaxation means made of the flexible material is provided in the recess.
- ⁇ 6 The hollow fiber membrane sheet-like product according to any one of ⁇ 1 >> to ⁇ 5 >>, wherein a guide groove for the hollow fiber membrane is formed on an outer peripheral surface of the roll. Manufacturing equipment.
- ⁇ 7 An apparatus for producing a hollow fiber membrane sheet-like product, comprising the following means (v) to (ix), wherein at least one roll used in the step is a roll having a tension fluctuation relaxation means.
- V two or more rolls and a supply means for supplying a hollow fiber membrane to the two or more rolls;
- the hollow fiber membrane is wound around two or more rolls so as to surround the two or more rolls, and the annular portion is connected to the hollow fiber membrane adjacent to the tip of the wound hollow fiber membrane.
- a connecting means that forms or hangs two or more rolls on a ring-shaped portion prepared in advance, and connects the tip of the hollow fiber membrane to the ring-shaped portion;
- ⁇ 9 The tension fluctuation relaxation means changes the distance from the rotating shaft of the roll to the hollow fiber membrane in contact with the tension fluctuation relaxation means in accordance with the fluctuation of the tension applied to the hollow fiber membrane.
- ⁇ 10 The apparatus for producing a hollow fiber membrane sheet-like product according to any one of ⁇ 7 >> to ⁇ 9 >>, wherein the tension fluctuation relaxation means is made of a flexible material.
- ⁇ 11 On the outer peripheral surface of the roll, two or more recesses extending in parallel with the rotation axis are formed, and the recess is provided with tension fluctuation relaxation means made of the flexible material.
- ⁇ 10 An apparatus for producing a hollow fiber membrane sheet according to the description.
- ⁇ 12 >>> The hollow fiber membrane sheet-like product according to any one of ⁇ 7 >> to ⁇ 11 >>, wherein a guide groove of the hollow fiber membrane is formed on an outer peripheral surface of the roll. Manufacturing equipment.
- ⁇ 13 The apparatus for producing a hollow fiber membrane sheet according to any one of ⁇ 7 >> to ⁇ 12 >>, wherein the supply means is a bobbin unwinding device.
- a dancer roll and a tension fluctuation reducing device for relaxing the tension fluctuation applied to the hollow fiber article are added to the yarn path separately.
- fluctuations in tension applied to the hollow fiber articles can be alleviated for each hollow fiber article.
- the present invention is effective in order to obtain a sheet-like material having a small length unevenness with such a hollow fiber material. That is, according to the method for producing a hollow fiber sheet-like product of the present invention, at least one roll body of two or more rolls is provided with a tension fluctuation mitigating means for mitigating fluctuations in tension applied to the hollow fiber article. Therefore, even when it is difficult to apply a tension fluctuation mitigation device such as a dancer roll, it is possible to alleviate fluctuations in tension applied to the hollow fiber article for each hollow fiber article with a very simple configuration.
- the hollow fiber sheet-like material with few length spots can be used regardless of the accuracy of the machinery and the quality of the hollow fiber. Can be obtained stably (see FIGS. 2A and 2B). Moreover, troubles such as the hollow yarn being excessively slackened and coming off from the conveying roll can be prevented, and conversely, it can be prevented that the hollow yarn is damaged due to excessive tension.
- BRIEF DESCRIPTION OF THE DRAWINGS It is a schematic side view of the manufacturing apparatus of the hollow fiber sheet material of the 1st Embodiment of this invention. It is a schematic plan view of the manufacturing apparatus of the hollow fiber sheet material of the 1st Embodiment of this invention.
- FIG. 1 It is a top view which shows a mode that a hollow fiber thing winds around the roll of this invention. It is a top view which shows a mode that a hollow fiber thing winds around the roll of this invention. It is a figure which shows the manufacturing process of 1st Embodiment of the hollow fiber sheet material of this invention. It is a figure which shows the manufacturing process of 1st Embodiment of the hollow fiber sheet material of this invention. It is a figure which shows the manufacturing process of 1st Embodiment of the hollow fiber sheet material of this invention. It is a figure which shows the manufacturing process of 1st Embodiment of the hollow fiber sheet material of this invention, and is a figure explaining the fixing method of a hollow fiber membrane sheet material. It is the elements on larger scale of FIG.
- FIG. 1st Embodiment of the hollow fiber material sheet-like material of this invention It is a figure which shows the manufacturing method of 1st Embodiment of the hollow fiber material sheet-like material of this invention, and is a figure explaining another fixing method of a hollow fiber material sheet-like material. It is the elements on larger scale of FIG. It is a figure which shows an example of the method of forming a connection part.
- FIG. 39 is a cross-sectional view of the hollow fiber article taken along line AA in FIG. 38. It is a schematic plan view of an automation process. It is a side view which shows an example of the roll for hollow fiber article conveyance of this invention.
- FIG. 42 is an end view of the hollow fiber material conveying roll of FIG. 41. It is sectional drawing which shows an example of a convex-shaped member (tension fluctuation
- FIG. 49 is an end view of the hollow fiber material conveying roll of FIG. 48. It is an expanded sectional view of the upper end part of the roll for hollow fiber articles conveyance of FIG. It is a side view which shows the other example of the roll for hollow fiber article conveyance of this invention. It is an end view of the roll for hollow fiber article conveyance of FIG. It is an expanded sectional view of the upper left end part of the roll for hollow fiber article conveyance of FIG. It is sectional drawing which shows the change of the deflection amount of a film-like thing (tension fluctuation
- FIG. 41 is a side view showing a first embodiment of a transport roll of a hollow fiber article transport roll (hereinafter also simply referred to as a transport roll) of the present invention
- FIG. 42 is an end view.
- the transport roll 1010 is provided on the outer peripheral surface of the column-shaped roll main body 1014 having the rotation shaft 1012 and the roll main body 1014 at intervals in the circumferential direction at a plurality of equal parts as seen from the end surface direction.
- a ridge member 1016 tension fluctuation relaxation means
- the same material as a normal transport roll (drive roll, free roll, etc.) may be used, and the material, size, etc. are not particularly limited.
- the ridge member 1016 is made of a flexible material.
- the flexible material can appropriately change the amount of bending according to the fluctuation of the tension applied to the hollow fiber, that is, the fluctuation of the tightening force caused by the hollow fiber against the conveying roll 1010.
- Changing the amount of bending means that the distance (rotation radius) from the rotating shaft 1012 of the roll body 1014 to the hollow yarn in contact with the protruding member 1016 is changed.
- a change in the distance from the rotary shaft 1012 to the hollow yarn means that the feed speed of the hollow yarn changes.
- the change in the feed rate of the hollow fiber product means that the tension applied to the hollow fiber product changes. Therefore, the convex strip member 1016 made of a flexible material functions as a tension fluctuation reducing means for reducing fluctuations in tension applied to the hollow fiber article for each hollow fiber article.
- two or more protrusion members 1016 are provided on the outer peripheral surface of the roll main body 1014 at intervals in the circumferential direction.
- a sheet member tension fluctuation relaxation means
- a flexible material made of a flexible material is provided so as to cover the entire outer peripheral surface of the roll body 1014 without any interval in the circumferential direction, the hollow yarn article, the sheet member, The contact point of the sheet member becomes too long, and the tightening force of the hollow fiber material on the conveying roll 1010 is dispersed over the contact point between the hollow fiber material and the sheet member. It may be insufficient.
- the convex strip members 1016 are preferably provided at 2 to 32 locations at intervals in the circumferential direction from the viewpoint of sufficiently mitigating fluctuations in tension applied to the hollow fiber article, and provided at 4 to 16 locations. More preferably, it is provided at 8 to 12 locations. Two or more ridge members 1016 are provided at equal intervals in the circumferential direction from the viewpoint of preventing yarn breakage caused by uneven tension applied to a single hollow fiber-like material in contact with the roll. It is preferable.
- the ridge member 1016 has a rectangular cross section as shown in FIG. 43, but is not limited to this shape in the present invention. From the viewpoint of reducing damage to the hollow fiber, the corners may be chamfered as much as possible as shown in FIG.
- the surface of the convex strip member 1016 has high smoothness from the viewpoint of reducing damage to the hollow fiber article.
- a protective member 1018 single-sided adhesive tape, film, etc. having a smooth surface may be wound around the ridge member 1016 as necessary.
- Elastic bodies include various rubbers (urethane rubber, silicone rubber, fluoro rubber, natural rubber, butyl rubber, ethylene propylene rubber, chloroprene rubber, etc.), various rubber sponges, soft polyurethane, soft polyvinyl chloride, foam (polyethylene, Polystyrene, ethylene vinyl acetate copolymer, etc.).
- the hardness of the ridge member 1016 (Shore A hardness) is preferably 5 to 70A, more preferably 10 to 50A, and even more preferably 15 to 25A.
- the hardness of the ridge member 1016 is appropriately selected according to the outer diameter, tension, and the like of the yarn.
- the height of the protruding portion 1016 most protruding from the outer peripheral surface of the roll main body 1014 is 0.5 mm to 5 mm, and the longitudinal width of the protruding strip member is the same as that of the conveying roll 1010. The width is the same, and the width of the lateral method is 5 mm to 20 mm.
- FIG. 46A when a hollow roll F is transported by arranging a drive roll comprising a normal drive roll 1110 and a transport roll 1010 of the present invention in the middle of the yarn path, the convex strip of the transport roll 1010 is provided.
- the member 1016 feeds the hollow fiber F between the drive roll 1110 and the transport roll 1010 by appropriately changing the amount of bending according to the tightening force of the hollow fiber F with respect to the transport roll 1010. Tension fluctuation due to the speed difference is alleviated.
- the tension of the hollow fiber F between the drive roll 1110 and the transport roll 1010 is increased, that is, the amount of bending of the convex member 1016 returns to the original state as shown in the center of FIG.
- the transport roll 1010 of the present invention is used as a drive roll, but the transport roll 1010 of the present invention may be added as a free roll between two existing drive rolls.
- two or more existing rolls and devices other than existing rolls and devices can be replaced with existing drive rolls without adding to the yarn path.
- the conveyance roll 1010 of the present invention is used as a drive roll from the viewpoint that the fluctuation of the tension applied to the hollow fiber article can be alleviated for each hollow fiber article. Is preferred.
- hollow fiber F examples include a hollow fiber membrane, a hollow string (hollow knitted string, hollow braid, etc.) and the like.
- the present invention is more effective in a hollow fiber membrane that is susceptible to the influence (sagging or damage) due to fluctuations in tension.
- the material of the hollow fiber for example, hollow fiber membrane
- the hollow fiber membrane can be used as a filtration membrane, its pore diameter, porosity, film thickness, outer diameter and the like are not particularly limited.
- the outer diameter is 20 ⁇ m or more and 3000 ⁇ m or less. In the range of 0.001 ⁇ m to 5 ⁇ m, porosity of 20% to 90%, and film thickness of 5 ⁇ m to 300 ⁇ m.
- the hollow fiber membrane is only required to be supplied as a single filament, may be a monofilament, or may be a multifilament in which a plurality of hollow fiber membranes are combined.
- the supply tension of the hollow fiber membrane is appropriately set depending on the material, rigidity, outer diameter and the like of the hollow fiber membrane, but is preferably 10 g or more and 1000 g or less, more preferably 50 g or more and 750 g or less, and further preferably 100 g or more and 500 g or less. If the supply tension of the hollow fiber membrane is too low, the processing stability is lowered. If the supply tension of the hollow fiber membrane is too high, the hollow fiber membrane will be damaged.
- FIG. 48 is a side view showing a second embodiment of the transport roll of the present invention
- FIG. 49 is an end view
- FIG. 50 is an enlarged cross-sectional view of the upper end portion of the transport roll.
- the transport roll 2010 includes a cylindrical roll body 1014 having a rotation shaft 1012 having a plurality of hollow fiber guide grooves 1020 formed on the outer peripheral surface, and a circular roll body 1014 on the outer peripheral surface of the roll main body 1014 as viewed from the end surface direction.
- a groove 1022 (recess) extending in parallel with the rotating shaft 1012 and a ridge member 1016 fitted to the groove 1022 (relaxation of tension fluctuations) are provided at intervals in the circumferential direction at a plurality of equal intervals. Means).
- the recesses are preferably provided in the number of 2 to 32 as in the case of the ridges, more preferably 4 to 16, and more preferably 8 to 12. Further preferred.
- the same components as those in the first embodiment of the transport roll are denoted by the same reference numerals and description thereof is omitted.
- the guide groove 1020 suppresses the displacement of the hollow fiber in the transport roll 2010, and a plurality of guide grooves 1020 are formed in parallel with each other over the entire circumference in the circumferential direction on the outer peripheral surface of the roll body 1014.
- the convex strip member 1016 is fixed by fitting the lower portion of the convex strip member 1016 to the concave strip portion 1022, and the upper portion of the convex strip member 1016 protrudes outward from the outer peripheral surface of the roll body 1014.
- fitting and fixing the protruding line member 1016 to the recessed line part 1022 dropping of the protruding line member 1016 from the conveying roll 2010 due to contact with the hollow fiber can be suppressed.
- the transport roll 3010 includes a cylindrical roll body 1014 having a rotation shaft 1012 in which a plurality of hollow fiber guide grooves 1020 are formed on the outer circumferential surface, and a circular roll body 1014 on the outer circumferential surface of the roll body 1014 as viewed from the end surface direction.
- a strip-shaped film 1024 tension fluctuation relaxation means, film-like material extending in parallel with the rotation shaft 1012 is provided at a plurality of circumferentially equally spaced locations in the circumferential direction.
- the same components as those in the first embodiment and the second embodiment of the transport roll are denoted by the same reference numerals and description thereof is omitted.
- the film 1024 is provided so as to cross over the guide groove 1020, and the outer peripheral surface of the roll main body 1014 at a portion of the guide groove 1020 (a portion that contacts the hollow yarn). It arrange
- the film 1024 and the roll body 1014 are in contact with each other at the groove top portion of the guide groove.
- the film 1024 responds to fluctuations in tension applied to the hollow fiber F (hollow fiber membrane in the illustrated example), that is, fluctuations in the tightening force caused by the hollow fiber F on the transport roll 3010. Since the amount of deflection can be changed appropriately, the same effect as the convex strip member 1016 in the first and second embodiments of the transport roll can be exhibited.
- the film 1024 is a thin film made of a resin, and the material thereof is preferably one that expands and contracts moderately by the tightening force of the hollow fiber F, and examples thereof include polyethylene, polypropylene, polyester, and fluorine resin.
- a single-sided adhesive tape whose base material is a film may be used.
- the film-like material is a thin film made of a resin, but in the present invention, it may be a woven fabric, a non-woven fabric, or the like.
- a projection-like object whose surface that contacts the hollow fiber is made of a low friction material (tension fluctuation relaxation means) May be provided.
- the protrusion may have a shape protruding from the roll surface.
- the hollow fiber becomes slippery on the surface of the protrusion, and this also causes the hollow fiber to slip.
- Variation in tension applied to the hollow fiber article can be alleviated for each article.
- the low friction material include fluorine-based materials such as Teflon (registered trademark), ultrahigh molecular weight polyethylene, PEEK, polyacetal, and the like.
- the surface of the protrusion may be low friction, and a tape made of a material having a low friction base material may be attached to the surface of the protrusion.
- the method for producing a hollow fiber product of the present invention is a method for producing a hollow fiber product comprising a step of spinning a resin composition to obtain a hollow fiber shaped product, wherein the shaped product or the shaped product
- This is a method of using the transporting roll of the present invention when the thread-like workpieces processed in the above are aligned and transported. After the resin composition is spun, shaping is performed.
- the method for producing a hollow fiber product of the present invention includes other steps (washing, drying, various processing, bundling, etc.) performed after the step of spinning the resin composition to obtain a filamentous shaped product. You may do it.
- the shaped product is a yarn product immediately after spinning the resin composition and then shaping.
- the processed product is a yarn product obtained by performing various processes (twisting, knitting, punching, coating, etc.) on the shaped product.
- the spinning and shaping methods include known methods such as a stretching method, a non-solvent induced phase separation method, and a thermally induced phase separation method, including the method described in any of Patent Documents 1 to 3.
- the conveyance roll of the present invention may be arranged as shown in FIGS. 46A and 46B on the yarn path until the spun / shaped yarn is wound up.
- the number of conveyance rolls on the yarn path may be one or plural.
- the transport roll of the present invention described above includes the roll body and the tension fluctuation reducing means for reducing the fluctuation of the tension applied to the hollow fiber article for each hollow fiber article, two rolls are provided. Even in the case where the above hollow yarns are simultaneously conveyed, fluctuations in tension applied to the hollow yarns can be alleviated for each hollow yarn. Therefore, without adding a dancer roll or a tension fluctuation mitigation device for relaxing the fluctuation of the tension applied to the hollow yarn to the yarn path separately, the fluctuation of the tension applied to the hollow yarn can be changed for each hollow yarn. Can be relaxed. Moreover, troubles such as the hollow yarn being excessively slackened and coming off from the conveying roll can be prevented, and conversely, it can be prevented that the hollow yarn is damaged due to excessive tension.
- FIG. 3 is a schematic side view of the hollow fiber sheet product manufacturing apparatus according to the first embodiment of the present invention.
- FIG. 4 is a schematic plan view of an apparatus for producing a hollow fiber sheet.
- FIG. 5 is a top view which shows a mode that a hollow fiber thing winds around the roll of this invention. 3 and 4 are not shown in the drawing, the protruding member (1016) or protruding protrusion (not shown) as shown in FIG. 5 is formed on the roll. .
- the hollow fiber sheet manufacturing apparatus 100 straddles the hollow fiber F supplied from the bobbin 5 over the first roll 1 and the second roll 2.
- the sheet is formed into a sheet by being wound in the manner described above, and then processed into a hollow fiber sheet S (see FIG. 12) by fixing and cutting the hollow fibers F together.
- the material of the hollow fiber F is not particularly limited.
- a resin composition containing a polymer such as polyamide, polyester, polymethacrylate, or polyacrylate as a main component. Further, these polymers may be partially introduced with a substituent. Furthermore, what mixed 2 or more types of polymers may be used.
- the hollow fiber material F is preferably a hollow fiber membrane that can be used as a filtration membrane.
- the hollow fiber membrane can be used as a filtration membrane, its pore diameter, porosity, film thickness, outer diameter and the like are not particularly limited, but from the viewpoint of filtration performance, the outer diameter is 20 ⁇ m or more. Preferred are those having a diameter of 4000 ⁇ m or less, a pore diameter of 0.001 ⁇ m to 5 ⁇ m, a porosity of 20% to 90%, and a film thickness of 5 ⁇ m to 300 ⁇ m.
- the hollow fiber membrane is only required to be supplied as a single filament, may be a monofilament, or may be a multifilament in which a plurality of hollow fiber membranes are combined.
- the hollow fiber sheet manufacturing apparatus 100 includes a frame 3 supported by a base 10.
- the frame-shaped frame 3 includes two side frames 31 and 31 and a shaft (not shown) provided to connect the two side frames 31 on the front end side and the rear end side of each side frame 31. It is configured.
- a first roll 1 and a second roll 2 (hereinafter also simply referred to as rolls) are fixed to the shaft, and two bearings (illustrated) are attached to the front end side and the rear end side of the frame 3, respectively. None) are mounted parallel to each other and rotatable.
- the material of the first roll 1 and the second roll 2 is not particularly limited, but it is preferable to finish the corners and the surface so as not to damage the surface of the hollow fiber F.
- the first roll 1 is disposed on the bobbin 5 side and the second roll 2 is disposed on the opposite side of the bobbin 5 in the frame 3.
- the manufacturing apparatus 100 is configured such that the hollow fiber F is wound around the first roll 1 and the second roll 2.
- the longitudinal direction of the hollow yarn F wound around the first roll 1 and the second roll 2 is defined as the winding direction
- the direction perpendicular to the longitudinal direction of the wound hollow yarn F is defined as the width direction.
- the distance between the first roll 1 and the second roll 2 (roll axial distance) is appropriately set depending on the length of the hollow fiber sheet S to be manufactured.
- a motor 12 (driving means) for driving the second roll 2 is attached to the second roll 2.
- the motor 12 drives the second roll 2 so that the second roll 2 rotates clockwise in the side view of FIG.
- the motor 12 when the motor 12 is wound so that the hollow fiber F is straddled across the first roll 1 and the second roll 2, the upper hollow fiber F is moved from the first roll 1 to the second roll 2.
- the second roll 2 is rotated so that the lower hollow fiber F moves in the direction of the first roll 1 from the second roll 2 so as to move in the direction of.
- the bobbin 5 is rotatably supported by the bobbin unwinding device 51 on the front side of the first roll 1.
- the bobbin 5 is wound with a sufficient amount of hollow fiber F to produce a hollow fiber sheet S having a predetermined area, and the hollow fiber F can be continuously supplied. Is possible.
- the bobbin 5 is fixed to the end 1a and 2a side of the first roll 1 and the second roll 2 (see FIG. 4) so that the bobbin 5 cannot move in the width direction at a position where the conveyance path of the hollow fiber F is set. ing.
- a guide roll 6 is provided on the conveyance path between the bobbin 5 and the frame 3.
- the guide roll 6 is rotatably supported by the roll stand 52.
- the guide roll 6 preferably rotates at a peripheral speed equivalent to the conveying speed of the hollow fiber F.
- the material of the guide roll 6 is not limited, but it is preferable to select a material that does not easily generate static electricity in the hollow fiber F.
- the guide roll 6 is provided for supplying the hollow fiber F to appropriate positions of the first roll 1 and the second roll 2.
- the above-described bobbin 5 appropriately applies tension to the hollow yarn F, and the movement of the hollow yarn F supplied from the bobbin 5 in the direction along the central axis of the bobbin 5 can be ignored. If present, the guide roll 6 may be omitted.
- the tension is as small as possible in a range where there is no transfer to the adjacent groove due to flapping in the process of the hollow fiber F. Further, it is preferable that the hollow fiber F wound around the bobbin 5 is appropriately adjusted depending on the winding amount, the diameter of the hollow fiber F, and the film thickness.
- a means for controlling the tension for example, a method of applying an appropriate brake to a rotating shaft (without driving) fixing the bobbin 5, a dancer roll (not shown) between the bobbin 5 (with driving) and the guide roll 6 ) May be used, but is not limited thereto.
- reference numeral 4 denotes a first ultrasonic welder (connection means).
- the first ultrasonic welder 4 transfers the hollow yarn F fed from the bobbin 5 to the first roll.
- the first ultrasonic welder 4 transfers the hollow yarn F fed from the bobbin 5 to the first roll.
- the first ultrasonic welder 4 transfers the hollow yarn F fed from the bobbin 5 to the first roll.
- the connecting portion C by welding and fixing the hollow fiber article F itself.
- An anvil 8 is provided in the frame 3 between the first roll 1 and the second roll 2, and a horn 7 is disposed above the anvil 8 so as to sandwich the hollow fiber F. 7 and the anvil 8 constitute a second ultrasonic welding machine 9 (fixing means).
- the second ultrasonic welder 9 fixes the hollow fiber F in a sheet shape across the width direction of the two first rolls 1 and 2 (direction perpendicular to the longitudinal direction of the hollow fiber F). It has a function to do.
- two fixing portions B are formed at a predetermined interval in the conveying direction of the hollow fiber article.
- the fixing means may have a mechanism capable of forming two fixing portions at a time, or after fixing one place at a desired position, the roll is rotated and the hollow fiber is approximately the width of the fixing portion. You may form a fixing
- reference numeral 11 denotes an ultrasonic cutter (cutting means), and this ultrasonic cutter 11 is formed by the second ultrasonic welder 9 at a predetermined interval in the conveying direction of the hollow fiber article.
- the two fixed portions B are cut in the width direction.
- FIG. 5 is a plan view showing a state in which the hollow fiber is wound around the roll of the present invention.
- the 1st roll 1 and the 2nd roll 2 consist of the peak part M and the trough part V which were densely formed in parallel with the same pitch P, and two or more arranged in the width direction.
- a circumferential groove is provided. These grooves are not formed in a spiral shape, but are formed independently of each other.
- the pitch P of the grooves is determined depending on the diameter of the hollow fiber F and the desired density of the hollow fiber membranes in the desired hollow fiber sheet, but with respect to the diameter of the hollow fiber F.
- the groove roll introduction of the hollow fiber article becomes smoother in the manufacturing process described later, and the quality deteriorates due to the contact between the hollow fiber articles conveyed adjacent to each other. , Misalignment and entanglement are less likely to occur.
- the shape of the groove is not limited to a shape in which the shape viewed from the side draws an arc, and for example, a shape in which the peak M and the valley V are linearly connected.
- the groove bottom may be flat.
- the hollow fiber F and the groove are brought into closer contact with each other by forming the groove portion in a shape that draws an arc.
- the hardness of the ridge member 1016 is preferably 1 to 80 degrees, more preferably 3 to 50 degrees, and still more preferably 5 to 20 degrees.
- the hardness of the ridge member 1016 is appropriately selected according to the outer diameter, tension, etc. of the hollow fiber article.
- the transport roll 1010 of the present invention is used as a drive roll, but the transport roll 1010 of the present invention may be added as a free roll between two existing drive rolls.
- the conveyance roll 1010 of the present invention is preferable to use as a drive roll from the viewpoint that the fluctuation of the tension applied to the hollow fiber article can be alleviated for each article.
- the sheet fixing process can be simplified by welding positions as indicated by reference numerals B1, B2, and C2 in FIGS.
- the terminal portion T and the connecting portion C2 are provided at independent positions with respect to the fixing portion B.
- the fixing part denoted by reference numeral B1 fixes the end of the hollow fiber sheet S and also fixes the end of the hollow fiber F (corresponding to the end T of FIG. 11).
- the fixed portion indicated by reference sign B2 and the connection portion indicated by reference sign C2 are arranged in the same line.
- the cutting method is not limited to the ultrasonic cutter 11 as described above.
- the cutting can be performed not only by cutting with a blade, scissors, and rotary blade, but also by fusing such as a heater wire or a laser cutter.
- the cutting line by cutting does not need to be a straight line.
- the ring-shaped portion winds the hollow fiber membrane that can be continuously supplied so as not to overlap so as to surround the two or more rolls, and adjoins the tip of the wound hollow fiber membrane. It was formed by connecting with a matching hollow fiber membrane, but as shown in FIG. 21, a ring-shaped member I was previously hung on the outer periphery of two or more rolls, and the ring-shaped member I and the tip A of the hollow fiber membrane were It can also be a method of connection.
- the ring-shaped member I may be a hollow fiber membrane, or may be another fibrous material such as a tube or string.
- the convex strip member or convex projection of the roll of FIG. 21 is abbreviate
- a first roll 1 and a second roll 2 are illustrated as a transport roll 1010 shown in FIG. 41 (side view) and FIG. 42 (end view) of the second embodiment of the apparatus for producing a hollow fiber sheet material of the present invention. It can also be used.
- the transport roll 1010 is provided on the outer peripheral surface of the column-shaped roll main body 1014 having the rotation shaft 1012 and the roll main body 1014 at intervals in the circumferential direction at a plurality of equal parts as seen from the end surface direction.
- a ridge member 1016 tension fluctuation relaxation means
- the hollow fiber is more stably wound into a sheet by slightly increasing the diameter of the roll in the winding direction or by slightly shifting the axis of two or more rolls from parallel to an arbitrary angle. be able to.
- FIG. 22 is a schematic side view of the apparatus for producing a hollow fiber membrane sheet according to the second embodiment of the present invention
- FIG. 23 is a hollow fiber membrane sheet according to the second embodiment of the present invention. It is a schematic plan view of this manufacturing apparatus. In this embodiment, the differences from the above-described embodiment will be mainly described, and the description of the same parts will be omitted.
- the hollow fiber membrane sheet manufacturing apparatus 100A of the present embodiment is provided with three bobbins that supply the hollow fiber F.
- the bobbins 61, 62, and 63 are arranged so as to be able to supply the hollow fiber article F with an interval in the direction along the longitudinal direction of the rolls 1 and 2.
- 100 A of manufacturing apparatuses of this Embodiment can manufacture the three hollow fiber sheet-like articles S simultaneously by having set it as the structure which can supply the three hollow fiber articles F independently.
- the said embodiment was set as the structure which can manufacture the three hollow fiber sheet-like material S simultaneously, it is not restricted to this,
- the width dimension of the desired hollow fiber material sheet-like material S and roll 1 According to the lengths of 2 and 2, the number of hollow fiber sheet-like materials S that can be manufactured at the same time can be appropriately changed. 22 and FIG. 23, the ridge member or ridge protrusion of the roll is not shown, but the ridge member (1016) or ridge protrusion (not shown) as shown in FIG. 5 is formed on the roll. .
- FIG. 51 side view
- FIG. 52 end view
- FIG. 53 enlarged cross-sectional view of the upper left end portion of the transport roll
- the transport roll 1010 includes a cylindrical roll body 1014 having a rotation shaft 1012 having a plurality of hollow fiber guide grooves 1020 formed on the outer peripheral surface, and a circular roll body 1014 on the outer peripheral surface of the roll main body 1014 as viewed from the end surface direction.
- a strip-shaped film 1024 (tension fluctuation relaxation means, film-like material) extending in parallel with the rotation shaft 1012 is provided at a plurality of circumferentially equally spaced locations in the circumferential direction.
- the same components as those in the first embodiment and the second embodiment are denoted by the same reference numerals and description thereof is omitted.
- the film 1024 is provided so as to cross over the guide groove 1020, and is disposed so as to be separated from the outer peripheral surface of the roll body 1014 in a portion of the guide groove 1020 (a portion that contacts the hollow fiber membrane). As shown in FIG. 54, the film 1024 changes the amount of bending appropriately according to the fluctuation of the tension applied to the hollow fiber F, that is, the fluctuation of the tightening force by the hollow fiber F against the transport roll 1010. Therefore, an effect equivalent to that of the protruding member 1016 in the first embodiment or the second embodiment can be exhibited.
- the film 1024 is a thin film made of a resin, and the material thereof is preferably one that expands and contracts moderately by the tightening force of the hollow fiber F, and examples thereof include polyethylene, polypropylene, polyester, and fluorine resin.
- a single-sided adhesive tape whose base material is a film may be used.
- the film-like material is a thin film made of a resin, but in the present invention, it may be a woven fabric, a non-woven fabric, or the like.
- a protrusion in which the surface that contacts the hollow fiber is made of a low friction material is provided. May be.
- the contact resistance between the transport roll 1010 and the hollow yarn can be reduced.
- the contact resistance between the transporting roll 1010 and the hollow fiber material can be further reduced by using a low friction material for the surface of the protrusion that contacts the hollow fiber material.
- FIG. 5 and 6 are plan views showing how the hollow fiber is wound around the roll of the present invention.
- 7 to 9 are diagrams showing manufacturing steps according to the embodiment of the present invention. 7 to 9 are not shown in the figure, but a protrusion (1016) or protrusion (not shown) as shown in FIG. 5 is formed on the roll.
- the first ultrasonic welder 4 (FIG. 3 and 4)
- the vicinity of the tip A of the hollow fiber F is directly beside (1b, 2b side, that is, the first roll 1 and the second roll 2) of the first hollow fiber F already wound.
- the connection portion C is formed by welding and fixing to one end 1a and the side opposite to the 2a side.
- the hollow fiber loop L is formed.
- the tension is preferably as small as possible within a range where there is no transfer to the adjacent groove due to flapping of the hollow fiber loop L in the manufacturing process, and is preferably adjusted as appropriate according to the diameter and film thickness of the hollow fiber F.
- the hollow fiber loop L is wound around the groove so that the hollow fiber F is supplied to the first roll 1 and the second roll 2 substantially perpendicularly (that is, substantially straight to the groove).
- the winding of the hollow fiber F is started by driving the motor 12 and rotating the second roll 2.
- the hollow fiber F rotates in the direction indicated by the arrow R shown in FIG.
- the tip A of the yarn is brought to the N + 1th piece following the self-propelled hollow yarn F in the front (Nth) which is fitted in the Nth groove indicated by the symbol N. Led into the groove.
- the tip A of the hollow fiber F is moved to the N + 2th hollow fiber F in front (N + 1) of the hollow fiber F inserted in the N + 1th groove. Guided to the groove.
- the tip A and the hollow fiber loop L move, and the hollow fiber F pulled out from the bobbin 5 winds around the first roll 1 and the second roll 2. .
- FIG. 6 the tip A of the yarn is brought to the N + 1th piece following the self-propelled hollow yarn F in the front (Nth) which is fitted in the Nth groove indicated by the symbol N. Led into the groove.
- the tip A of the hollow fiber F is moved to the N + 2th hollow fiber F in front (N + 1) of the hollow fiber F inserted in the N + 1th groove. Guided to the groove.
- the tip A and the hollow fiber loop L move
- the hollow fiber loop L is the 1b and 2b side of the 1st roll 1 and the 2nd roll 2 of the other end side most from the side from which the hollow fiber F is supplied from the bobbin 5. Even when it moves to the position, the position at which the hollow fiber F is supplied from the bobbin 5 does not change. That is, it is not necessary to move the supply position of the hollow fiber article F.
- FIG. 10 is a view for explaining a fixing method of the hollow fiber sheet
- FIG. 11 is a partially enlarged view of a portion indicated by D in FIG.
- the hollow fiber articles F are welded at two locations to form a fixing portion. Under the present circumstances, it is preferable to weld the location except the hollow fiber material F which comprises a 2nd hollow fiber material sheet-like material.
- the ultrasonic cutter 11 (cutting means) shown in FIG. 3 is moved in the width direction to form a second hollow fiber sheet-like material between the two fixed portions B.
- a portion excluding the yarn F is cut, and the first hollow yarn sheet is removed from the first roll 1 and the second roll 2 to obtain a hollow yarn sheet S as shown in FIG.
- the hollow fiber sheet S (first hollow fiber sheet) is taken out of the state of FIG. 10 to return to the same state as FIG. 3, and subsequently the hollow fiber sheet S (first 2 hollow fiber sheet-like material) can be produced.
- this Embodiment is the structure which winds the hollow fiber thing F ranging over the two 1st rolls 1 and the 2nd rolls 2, and the two 1st rolls 1 and 2nd The central axis position of the roll 2 is fixed. Therefore, it is possible to arrange a receiver of the welding machine between the two first rolls 1 and the second roll 2, and more reliable fixing can be realized with a simpler configuration. Further, when changing the length of the hollow fiber sheet S to be manufactured, for example, as shown in FIGS. 13 and 14, without changing the first roll 1 and the second roll 2, the winding circumference In order to adjust the length of the frame 3B, the length of the hollow fiber sheet S can be easily changed by adjusting the length of the frame 3B.
- the winding circumferential length means the length between two or more rolls after winding the hollow fiber article.
- the frame 3B shown in FIG. 13 is composed of a side frame 31B whose length can be changed depending on a fixed portion. By changing the state from the state shown in FIG. 13 to the state shown in FIG. The length can be changed. If the sheet cutting operation is performed while the tension is strong, problems such as cracking of the welded portion (connecting portion, fixed portion) may occur. Therefore, by adopting a frame whose length can be changed, the above-mentioned problem can be solved by reducing the tension, and the sheet collecting operation becomes easy. 13 and 14 are omitted from illustration, the protruding member (1016) or protruding protrusion (not shown) as shown in FIG.
- a non-rotatable shaft is placed between two or more rolls, the hollow fiber article is wound up so as to be wound around two or more rolls and the outer periphery of the shaft, and then the shaft is pulled out.
- the winding circumference can be adjusted indirectly.
- an adjusting means for adjusting the interval between the two rolls as shown in FIGS. 15 and 16 can be taken.
- the moving distance of the roll is appropriately selected according to the winding tension, elongation, strength of the welded portion, etc. of the hollow yarn.
- 15 and 16 are omitted from illustration, but the protrusions (1016) or protrusions (not shown) as shown in FIG. 5 are formed on the roll. .
- the said embodiment is a structure which the hollow fiber F moves the front-end
- the hollow fiber F is wound around the first roll 1 and the second roll 2 by rotating only the second roll 2. It is good also as a structure which rotates 1. By driving the first roll 1 at the same rotational speed as the second roll 2, more stable winding becomes possible.
- the number of rolls is not limited to two, and other rolls such as a third roll and a fourth roll may be provided in addition to the first roll 1 and the second roll 2.
- FIG. 17 is a schematic side view of a manufacturing apparatus 100B for a hollow fiber sheet-like product S in which three rolls are arranged
- FIG. 18 is a schematic plan view thereof. In the figure, three rolls are arranged in parallel. By adopting such a configuration, it is effective in suppressing the loosening of the hollow fiber due to gravity.
- the protrusion member (1016) or protrusion protrusion (not shown) as shown in FIG. 5 is formed on the roll. Further, it is space-saving, and the fixing means can be easily arranged. Although the case where one hollow fiber article is supplied is illustrated in the figure, a plurality of hollow fiber articles may be supplied in a parallel state.
- the hollow fiber sheet-like material S by setting the fixing part B at one place and cutting the substantially central part of the fixing part B may be used.
- fixed part B was provided in the both ends of the hollow fiber sheet material S can be obtained.
- the ring-shaped portion is wound so as not to overlap so as to surround the two or more rolls so as to surround the hollow fiber material that can be continuously supplied, and the distal end portion of the wound hollow fiber material Is formed by connecting the adjacent hollow yarns to each other, as shown in FIG. 21, the ring-shaped member I is hung on the outer periphery of two or more rolls in advance, It can also be set as the method of connecting the front-end
- the ring-shaped member I may be a hollow yarn, or may be another fibrous material such as a tube or string.
- the fixing method is not limited to the ultrasonic welding as described above, as long as the hollow fiber F is not separated when the hollow fiber F arranged in a sheet shape is cut open.
- heat fusion fixing with a tape or an adhesive
- a welding machine with heat such as an impulse heater, a tape feeder supply device, an adhesive applicator, or fixing with a jig may be used.
- the cutting method is not limited to the ultrasonic cutter as described above.
- the cutting can be performed not only by cutting with a blade, scissors, and rotary blade, but also by fusing such as a heater wire or a laser cutter.
- the cutting line by cutting does not need to be a straight line.
- the supply means which supplies a hollow fiber thing continuously to a 1st roll and a 2nd roll was made into the bobbin unwinding apparatus, for example, the unit provided with two or more rolls 2 facing each other
- FIG. 24 is a schematic side view of the manufacturing apparatus 100C for the hollow fiber sheet-shaped product S
- FIG. 25 is a schematic plan view of the manufacturing apparatus 100C for the hollow fiber sheet-shaped product S.
- the hollow fiber sheet-like product S manufacturing apparatus 100C is provided with a plurality of (three in this embodiment) bobbins 5a, 5b, and 5c, respectively.
- the products Fa, Fb, and Fc are wound around the first roll 1 and the second roll 2 and wrapped around the rolls 1 and 2, the hollow fibers Fa, Fb , And Fc, and is a device for processing into a hollow fiber sheet S (see FIG. 12) by fixing and cutting.
- a ring-shaped part formation process has put the said hollow fiber membrane (Fa, Fb, and Fc) in the parallel state in the width direction one end side of each roll (1st roll 1 and 2nd roll 2).
- the plurality of hollow fiber membranes that are supplied as they are are wound around the other end side of the plurality of hollow fiber membranes while being in a parallel state so as to surround each roll, and are supplied to the one end side in the width direction and adjacent to each other It is connected to the yarn membrane in a parallel state to form a ring-shaped portion and a connection portion, and the winding process rotates at least one of the rolls and moves the tips of the plurality of hollow fiber membranes.
- the cutting process is performed before Along the fixed part in which open up the plurality of hollow fiber membranes.
- a traverse mechanism is not required but a manufacturing apparatus can be constructed
- a means for fixing the hollow fiber membranes in a sheet shape it is possible to employ fixing means for fixing the hollow fiber membranes arranged in a line at a desired pitch in a row from both sides.
- the same materials as those exemplified for the hollow fiber product F can be used.
- the first roll 1 and the second roll 2 are rotatably supported on both ends in the longitudinal direction of the frame-like frame 3 so that the rotation axes J1 and J2 are parallel to each other.
- the frame 3 is fixed to the base 10.
- the material of each roll 1 and 2 is not particularly limited, but it is preferable to finish the corners and the surface so as not to damage the surfaces of the hollow yarns Fa, Fb, and Fc.
- interval of the 1st roll 1 and the 2nd roll 2 is suitably set by the length of the hollow fiber sheet-like material S manufactured.
- motors 12a and 12b for driving the rolls 1 and 2 are attached to the first roll 1 and the second roll 2, respectively.
- the motors 12a and 12b drive the rolls 1 and 2 so that the rolls 1 and 2 rotate clockwise in FIG.
- the motors 12a and 12b have the hollow fibers Fa, Fb, and The hollow fibers Fa, Fb, and Fc on the lower side of the roll move in the direction from the second roll 2 to the first roll 1 so that Fc moves from the first roll 1 to the second roll 2.
- Each roll 1 and 2 is rotated so that it moves.
- the motors 12a and 12b are driven in synchronization with each other.
- Three bobbins 5a, 5b, and 5c are arranged on the front side (the lower side in FIGS. 24 and 25) of the first roll 1 configured as described above. More specifically, the three bobbins 5a, 5b, and 5c are arranged so as to follow the winding direction and away from the first roll 1, and the ends 1a and 2a of the rolls 1 and 2 (FIG. 25). Are arranged so as to be gradually shifted slightly toward the other ends 1b and 2b (upper side in FIG. 25).
- the bobbins 5a, 5b, and 5c are rotatably supported by the bobbin unwinding devices 51a, 51b, and 51c, respectively, and are fixed so as not to move in the width direction.
- each of the bobbins 5a, 5b, and 5c is wound with a sufficient amount of the hollow fiber articles Fa, Fb, and Fc for manufacturing the hollow fiber sheet material S having a predetermined area.
- these hollow yarns Fa, Fb, and Fc can be continuously supplied.
- the three hollow yarns Fa, Fb, and Fc are conveyed from the bobbins 5a, 5b, and 5c thus provided so as to be drawn out along the winding direction toward the rolls 1 and 2, respectively. And supplied to the rolls 1 and 2.
- the three hollow filaments Fa, Fb, and Fc are supplied to the groove of the roll 1 in a state of being arranged in parallel in the width direction (details will be described later). For this reason, it is desirable to set the deviation amounts of the bobbins 5a, 5b, and 5c and the guide rolls 6a, 6b, and 6c to be substantially the same as the groove pitch of the rolls 1 and 2.
- each guide roll 6a, 6b, and 6c is for supplying the hollow fiber products Fa, Fb, and Fc to appropriate positions of the rolls 1 and 2, and can be rotated to a roll stand (not shown). It is supported by.
- Each guide roll 6a, 6b, and 6c preferably rotates at a peripheral speed equivalent to the conveying speed of the hollow yarns Fa, Fb, and Fc.
- each guide roll 6a, 6b, and 6c is not specifically limited, However, It is preferable to select the material in which static electricity does not generate
- the hollow yarns Fa, Fb, and 5c are appropriately tensioned by the bobbins 5a, 5b, and 5c, and are supplied from the bobbins 5a, 5b, and 5c.
- the guide rolls 6a, 6b, and 6c may be omitted as long as the movement of the Fc bobbins 5a, 5b, and 5c in the direction along the central axis is negligible.
- the tension varies in the process of the hollow yarns Fa, Fb, and Fc. Is preferably as small as possible as long as there is no transfer to the adjacent groove due to, and further, the winding amount of the hollow yarns Fa, Fb and Fc wound around the bobbins 5a, 5b and 5c, It is preferable to adjust appropriately according to the diameter and film thickness of Fa, Fb, and Fc.
- a first ultrasonic welder 4 is provided between the first roll 1 and the second roll 2 on the upper side opposite to the base 10.
- the first ultrasonic welder 4 surrounds the rolls 1 and 2 around the outer circumferences of the rolls 1 and 2 with the hollow yarns Fa, Fb, and Fc fed from the bobbins 5a, 5b, and 5c.
- the hollow yarns wound around the rolls 1 and 2 in the vicinity of the front ends Fa1, Fb1, and Fc1 of the hollow yarns Fa, Fb, and Fc
- the connection portion C1 is formed by welding and fixing Fa, Fb, and Fc (see FIGS. 26 and 27, details will be described later).
- a second ultrasonic welder 9 is provided between the first roll 1 and the second roll 2.
- the second ultrasonic welder 9 includes hollow yarns Fa, Fb, and rolls 1 and 2 in the width direction (a direction perpendicular to the longitudinal direction of the hollow yarns Fa, Fb, and Fc). It has a function of fixing Fc in a sheet form (see FIGS. 24, 26 and 27, details will be described later).
- the second ultrasonic welder 9 includes an anvil 8 and a horn 7 disposed above the anvil 8.
- the second ultrasonic welder 9 is configured to be movable in the winding direction by a driving device (not shown). Thereby, even if the hollow yarns Fa, Fb, and Fc are stopped, different portions can be welded.
- two fixing portions B are formed at a predetermined interval in the conveying direction of the hollow yarns Fa, Fb, and Fc.
- the shape (hollow shape) of the hollow filaments Fa, Fb, and Fc does not need to be maintained.
- an ultrasonic cutter 11 is provided between the first roll 1 and the second roll 2 on the upper side opposite to the base 10.
- the ultrasonic cutter 11 uses the second ultrasonic welder 9 to cut in the width direction between two fixed portions B formed at predetermined intervals in the conveying direction of the hollow yarns Fa, Fb, and Fc. Is for.
- FIG. 26 is a plan view showing a state in which the hollow yarns Fa, Fb, and Fc are wound around the first roll 1
- FIG. 27 is a drawing of the hollow fiber items Fa, Fb, and Fc wound around the second roll 2.
- each of the rolls 1 and 2 includes two or more ridges M and valleys V that are densely formed in parallel at the same pitch P and arranged in the width direction.
- Circumferential grooves 21 and 22 are provided. These grooves 21 and 22 are not formed in a spiral shape, but are formed independently of each other.
- the trough part V is formed in cross-sectional substantially arc shape.
- the valley portion V to have a substantially arc-shaped cross section, it becomes possible to improve the adhesion between the hollow yarns Fa, Fb and Fc and the grooves 21 and 22.
- the pitch P of the grooves 21 and 22 is determined depending on the diameter of the hollow yarns Fa, Fb, and Fc and the desired density of the hollow fiber membranes in the desired hollow fiber sheet S. However, when the diameters of the hollow yarns Fa, Fb, and Fc are the same, the pitch P is made wider (1 to 3%) or more than the diameter of the hollow yarns Fa, Fb, and Fc. When the diameters of the hollow yarns Fa, Fb, and Fc are different from each other, the pitch P is wider by 1 to 3% or more than the diameter of the hollow fiber membrane having the smaller diameter of the two adjacent hollow fiber membranes.
- the shape of the grooves 21 and 22 is not limited to the shape in which the valley portion V is formed in a substantially arc-shaped cross section, and may be a shape in which, for example, the mountain portion M and the valley portion V are linearly connected.
- the groove bottom may be flat.
- FIG. 28 to FIG. 30 are explanatory views showing the manufacturing process of the hollow fiber sheet S.
- three hollow fiber articles Fa, Fb, and Fc are pulled out from three bobbins 5a, 5b, and 5c, respectively, and these hollow fiber articles Fa, Fb, and Fc are extracted.
- these hollow fiber articles Fa, Fb, and Fc are extracted.
- the hollow fibers Fa, Fb, and Fc are wound once so as to surround the rolls 1 and 2 while being arranged in parallel.
- the end portions Fa1, Fb1, and Fc1 of the hollow fiber products Fa, Fb, and Fc do not overlap with the hollow fiber products Fa, Fb, and Fc wound around the rolls 1 and 2 thereafter.
- the end portions Fa1, Fb1, and Fc1 are shifted to the other end side (the left side in FIGS. 26 and 27, the upper side in FIG. 28) with respect to the hollow yarns Fa, Fb, and Fc.
- the first ultrasonic welding machine 4 shown in FIG. 24 is used for welding and fixing (connection process). Thereby, the connection part C1 is formed in the hollow fiber articles Fa, Fb, and Fc, and the hollow fiber membrane loop L is further formed.
- the ends of the hollow fiber articles Fa, Fb, and Fc are fixed, they are fixed so as to give an appropriate tension to the hollow fiber membrane loop L.
- the tension is preferably as small as possible as long as the hollow fiber membrane loop L does not transfer to the adjacent groove due to flapping in the manufacturing process, and is preferably adjusted as appropriate according to the diameter and film thickness of the hollow fiber F.
- the hollow fiber membrane loop L is wound around the groove closest to the ends 1a and 2a of the rolls 1 and 2.
- the winding of the hollow filaments Fa, Fb, and Fc is started by driving the motors 12 a and 12 b and rotating the first roll 1 and the second roll 2.
- the hollow filaments Fa, Fb, and Fc rotate in the direction indicated by the arrow R in FIG.
- the end portions Fa1, Fb1, and Fc1 of the hollow yarns Fa, Fb, and Fc have three grooves 21 in the N stage indicated by the reference numeral N, and 22 is guided to the N + 1-stage grooves 21 and 22 along with the self-propelled hollow fiber article F just before (N-th).
- the front ends Fa1, Fb1, and Fc1 of the hollow filaments Fa, Fb, and Fc are just in front of the three grooves 21 and 22 in the N + 1 stage ( N + 1 hollow fibers Fa, Fb, and Fc are led to the three grooves 21 and 22 in the N + 2 stage.
- the tip portions Fa1, Fb1, and Fc1 and the hollow fiber membrane loop L move, and the hollow filaments Fa drawn out from the bobbins 5a, 5b, and 5c, Fb and Fc are wound around rolls 1 and 2 (winding step). 29, even when the hollow fiber membrane loop L moves to the other ends 1b and 2b of the rolls 1 and 2, the hollow fiber articles Fa, Fb, and Fc are supplied from the bobbin 5.
- the position to be changed does not change. That is, it is not necessary to move the supply position of the hollow filaments Fa, Fb, and Fc with respect to the roll 1.
- the hollow fiber membrane loop L reaches the groove formed at the most other end side, or the hollow fiber fabrics with desired widths of the sheet-like hollow fiber products Fa, Fb, and Fc. Winding is completed when the width of the sheet-like material S or the number of yarns is reached.
- the first roll 1 and the second roll 2 have grooves 21 and 22 formed at the same pitch P, respectively, so that a hollow fiber sheet-like material is formed.
- the yarn pitches of the hollow yarns Fa, Fb, and Fc constituting S can be more evenly aligned.
- FIG. 31 is an explanatory view showing a fixing method of the hollow fiber sheet S
- FIG. 32 is an enlarged view of a portion D in FIG.
- the first ultrasonic welding machine 4 shown in FIG. 24 is used for welding and fixing to form a connection portion C2.
- the tip of the next hollow fiber sheet S (second hollow fiber membrane sheet) obtained by forming this connecting portion C2, the tip Fa2, Fb2, and Let it be Fc2.
- symbol T is fixed, and the connection part C2 and the terminal part T are cut
- the hollow fiber items Fa, Fb, Fc are welded together at two locations to form the fixing portion B. To do. Under the present circumstances, it is preferable to weld the location except the hollow fiber products Fa, Fb, and Fc which comprise the 2nd hollow fiber membrane sheet-like material.
- the ultrasonic cutter 11 shown in FIG. 24 is moved in the width direction, and between the two fixing parts B, the hollow fiber material Fa constituting the second hollow fiber membrane sheet-like material, The portions excluding Fb and Fc are cut, and the hollow fiber items Fa, Fb, and Fc are removed from the rolls 1 and 2 (cutting step). Then, as shown in FIG. 12, a hollow fiber sheet S is obtained.
- the hollow fiber sheet S is taken out from the state of FIG. 31, the state returns to the same state as in FIGS. 26 and 27, and the hollow fiber sheet S can be subsequently manufactured.
- the hollow yarns Fa, Fb, and Fc are wound around the rolls 1 and 2, and each of the rolls 1 and 2 includes the frame 3 Is supported rotatably.
- the 1st ultrasonic welding machine 4 and the 2nd ultrasonic welding machine 9 can be arrange
- a receiving jig (anvil) for fixing the first ultrasonic welder 4 and the second ultrasonic welder 9 can be disposed between the rolls 1 and 2. Therefore, the fixing of the hollow yarns Fa, Fb, and Fc can be realized more reliably and with a simpler configuration.
- the length of the produced hollow fiber sheet S without changing the rolls 1 and 2, for example, by making the length of the frame 3 adjustable, The length of the hollow fiber sheet S can be easily changed.
- the hollow fiber membranes Fa, Fb, and Fc are formed by the hollow fiber membrane loop L self-propelled on the rolls 1 and 2 in which the grooves 21 and 22 formed at the same pitch P are formed.
- the front end portions Fa1, Fb1, and Fc1 are wound around the rolls 1 and 2 while being transferred from the grooves 21 and 22 on one end side of the rolls 1 and 2 to the grooves 21 and 22 on the other end side. For this reason, it is possible to obtain the high-quality hollow fiber sheet-like material S arranged in parallel at a predetermined pitch P without providing a traverse mechanism in the guide rolls 6a, 6b, and 6c.
- an appropriate tension can be applied to the hollow yarns Fa, Fb, and Fc, and the yarn feeding angles of the hollow yarns Fa, Fb, and Fc supplied from the bobbins 5a, 5b, and 5c can be set. If the change can be ignored, the guide rolls 6a, 6b, and 6c themselves can be made unnecessary. Then, the hollow yarns Fa, Fb, and Fc are pulled out from the bobbins 5a, 5b, and 5c, respectively, and these hollow fiber items Fa, Fb, and Fc are supplied to the rolls 1 and 2 at a time. Compared with the case where one hollow fiber membrane is supplied to each of the rolls 1 and 2, the time required to obtain the hollow fiber sheet S can be shortened.
- the hollow yarns Fa, Fb, and Fc are supplied to the rolls 1 and 2 in a state of being arranged in parallel in the width direction, the twists of the hollow yarns Fa, Fb, and Fc at the time of winding are provided. Can be prevented. That is, when one hollow fiber membrane is wound, the hollow fiber membrane is easily twisted around the core of the hollow fiber membrane, but the three hollow fiber articles Fa, Fb, and Fc are arranged in parallel. By doing so, the width of the hollow fiber membrane as a whole increases, and the hollow fiber articles Fa, Fb, Fc are hardly twisted. For this reason, a high-quality hollow fiber sheet-like material S can be provided.
- the ultrasonic cutter 11 is provided in the manufacturing apparatus 100C, the fixing portions B of the hollow fiber items Fa, Fb, and Fc are cut to open the hollow fiber items Fa, Fb, and Fc, The process of making the hollow fiber sheet S can be automated. For this reason, productivity can be further improved.
- the present invention is not limited to the above-described embodiment, and includes various modifications made to the above-described embodiment without departing from the spirit of the present invention.
- the present invention is not limited to this, and by attaching a motor to either the first roll 1 or the second roll 2 and rotating only one of the first roll 1 or the second roll 2,
- the rolls 1 and 2 may be configured to wind the hollow yarns Fa, Fb, and Fc.
- the manufacturing apparatus 100C includes the two rolls 1 and 2 of the first roll 1 and the second roll 2, and the hollow yarns Fa and Fb so as to surround the rolls 1 and 2. And Fc are wound.
- the present invention is not limited to this, and there may be at least two rolls, and three or more rolls may be provided.
- the first ultrasonic welder 4 is used to form the fixing portion B.
- the case where the sonic welder 9 is used has been described.
- the present invention is not limited to this. For example, heat fusion, fixing with a tape or an adhesive, specifically, a heat welding machine such as an impulse heater, a tape supply device, an adhesive applicator, or a jig. Etc.
- FIG. 33 is an explanatory view showing the manufacturing process, an explanatory view for explaining another fixing method of the hollow fiber sheet S, and FIG. 34 is a partially enlarged view of FIG. That is, the sheet fixing step can be simplified by welding positions as indicated by reference numerals B1, B2, and C2 in FIGS.
- the fixing portion indicated by reference numeral B1 fixes the end of the hollow fiber sheet S and the end of the hollow fiber F (see FIG. 32). (Corresponding to the end portion T) is fixed.
- the fixed portion indicated by reference sign B2 and the connection portion indicated by reference sign C2 are arranged in the same line.
- the ultrasonic cutter 11 is provided between the first roll 1 and the second roll 2, and the ultrasonic cutter 11 is moved in the width direction so that the hollow yarns Fa, Fb, Fc are The case of cutting was explained.
- the means for cutting the hollow yarns Fa, Fb, Fc is not limited to the case of using the ultrasonic cutter 11, and means such as a knife, scissors, rotary blade, heater wire, laser cutter, etc. may be used. it can.
- the cutting line by cutting does not need to be a straight line.
- the ridge members or ridge protrusions of the roll are not shown, but the ridge members (1016) or ridge protrusions (not shown) as shown in FIG. 5 are formed on the roll.
- a bobbin around which a hollow fiber membrane having an outer diameter of 2.8 mm (type: ADF2800CA-1 (material: PVDF), manufactured by Mitsubishi Rayon Co., Ltd.) is wound is set on the bobbin unwinding device, and the first roll and the second roll are surrounded. In this state, the first roll and the second roll are synchronized so as to have a peripheral speed of 70 m / min.
- the roll was rotated and wound up until 100 hollow fiber membranes were arranged around the first roll and the second roll.
- a tape having a width of 50 mm was applied to the whole of the arranged hollow fiber membranes in the longitudinal direction, and then the central portion of the tape was cut with scissors to obtain a hollow fiber membrane sheet.
- the tension at the time of unwinding the hollow fiber membrane from the bobbin was controlled to be constant within a range of 430 to 460 g / fil.
- the hollow fiber membrane was supplied from the bobbin where the length variation of the hollow fiber membrane constituting the sheet was likely to occur, and a hollow fiber membrane sheet was produced.
- the bobbin was not changed, and the conditions (rolls) of Example 1 and Comparative Example 1 were changed almost alternately to obtain a hollow fiber membrane sheet.
- the hollow fiber membrane sheet obtained under the conditions of Example 1 was used in Examples 1-1 to 1-5, and the hollow fiber membrane sheet obtained under the conditions of Comparative Example 1 was compared with Comparative Example 1-1.
- ⁇ L of the comparative example was 17 to 24 mm (average: 20 mm), whereas ⁇ L of the example was 7 to 12 mm (average: 9.4 mm). According to the present invention, it is possible to stably obtain a sheet having a hollow fiber membrane with little length variation.
- hollow fiber membranes generally have different shapes within a single hollow fiber membrane due to the complexity of the shape and manufacturing process. In order to obtain a sheet-like material with a small amount, the present invention is effective.
- the transport roll of the present invention is suitable as a drive roll used when transporting the hollow fiber membrane in a process (washing, drying, bundling, etc.) after spinning the hollow fiber membrane using the resin composition. It can also be used to transport hollow fiber articles for a wide range of uses other than hollow fiber membranes. According to the method and apparatus for producing a hollow fiber sheet of the present invention, a traverse mechanism is unnecessary. Further, as a means for fixing the hollow fiber article in a sheet shape, it is possible to employ a fixing means for fixing the hollow fiber articles arranged in a row from both sides, and the hollow fiber with less length variation A strip sheet can be manufactured with a very simple apparatus configuration.
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Tension Adjustment In Filamentary Materials (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
Description
本願は、2012年12月26日に、日本に出願された特願2012-282223号に基づき優先権を主張し、その内容をここに援用する。
さらに、これら中空糸条物は、例えば、中空糸膜を束状にした形態、中空糸膜をシート状にしてこれを積層した形態等、各種の形態を有する中空糸膜モジュールに加工される(特許文献1、2参照)。
送り速度Vaと送り速度Vbとのわずかな差が、少しずつ蓄積することによって、中空糸膜が過度に弛んで駆動ロールから外れてしまう等のトラブルが生じたり、逆に、過度に張ることで中空糸膜の損傷の原因となったりする。
一般的に、中空糸膜モジュールは、中空糸膜を所望のピッチで並べた状態で所定の長さに切り揃え、かつ、中空糸膜同士を融着や接着することでシート状とした、シート状物を積層することで製造される。
ここで、送り速度Vaと送り速度Vbとの差は、ロール2110、2120の幅方向のロール径の斑(加工精度)、ロール2110、2120を駆動するモータの回転速度の差、中空糸膜の長手方向の外径(真円度)の斑等に起因する。
しかし、所望の周長となるように配置された2つ以上のロールの周りに、複数列の中空糸膜が密に並んで搬送される為、空間的な制約により、ダンサーロール等の設置が困難である。
[1]ロール本体と、張力変動緩和手段とを備える、中空糸条物搬送用ロール。
[2]前記張力変動緩和手段が、前記ロール本体の外周面に、周方向に間隔をあけて2箇所以上設けられている、[1]記載の中空糸条物搬送用ロール。
[3]前記張力変動緩和手段が、前記ロール本体の回転軸から前記張力変動緩和手段と接する前記中空糸条物までの距離を変化させるように構成されている、[1]又は[2]に記載の中空糸条物搬送用ロール。
[4]前記張力変動緩和手段が、可撓性を有する材料からなる、[1]~[3]の何れか一項に記載の中空糸条物搬送用ロール。
[5]前記ロール本体の外周面に、回転軸に平行に延びる2本以上の凹部が形成され、前記凹部に、前記可撓性を有する材料からなる張力変動緩和手段が設けられている、[4]に記載の中空糸条物搬送用ロール。
[6]前記張力変動緩和手段が、前記中空糸条物と接触する箇所において前記ロール本体の外周面から離間するように配置されたフィルム状物である、[1]~[3]の何れか一項に記載の中空糸条物搬送用ロール。
[7]前記張力変動緩和手段が突起状物であって、前記突起状物の前記中空糸条物と接触する面が低摩擦性材料から構成されてなる、[1]~[3]の何れか一項に記載の中空糸条物搬送用ロール。
[8]前記ロールは、駆動ロールである、[1]~[7]の何れか一項に記載の中空糸条物搬送用ロール。
[9]前記ロール本体の外周面に、前記中空糸条物用のガイド溝が形成されている、[1]~[8]の何れか一項に記載の中空糸条物搬送用ロール。
[10]前記中空糸条物が、中空糸膜である、[1]~[9]の何れか一項に記載の中空糸条物搬送用ロール。
[11]下記工程(i)~(iv)を含み、かつ、前記工程で用いる少なくとも1つのロールが、[1]~[9]の何れか一項に記載の中空糸条物搬送用ロールである、中空糸条物シート状物の製造方法。
(i)中空糸条物を、2つ以上のロールを囲むように巻き回し、前記巻き回された中空糸条物の先端部と隣り合う中空糸条物とを接続して輪状部を形成する、又は、2つ以上のロールに、あらかじめ作成した輪状部を掛け、前記輪状部に中空糸条物の先端部を接続する、接続工程;
(ii)前記2つ以上のロールの少なくとも1つのロールを回転させ、前記2つ以上のロールに中空糸条物を巻き取る、巻取り工程;
(iii)前記2つ以上のロールに巻き取られた中空糸条物を幅方向にシート状に固定して固定部を形成する、固定工程;
(iv)前記固定部で切断し、中空糸条物が端部で幅方向に接続されたシート状物を得る、切断工程;
[12]前記中空糸条物が、中空糸膜である、[11]記載の中空糸条物シート状物の製造方法。
[13]下記手段(v)~(ix)を含み、かつ、前記工程で用いる少なくとも1つのロールが、[1]~[9]の何れか一項に記載の中空糸条物搬送用ロールである、中空糸条物シート状物の製造装置。
(v)2つ以上のロールと、前記2つ以上のロールに中空糸条物を連続的に供給するように構成された供給手段;
(vi)2つ以上のロールに、連続的に供給可能な中空糸条物を前記2つ以上のロールを囲むように巻き回し、前記巻き回された中空糸条物の先端部と隣り合う中空糸条物と接続して輪状部を形成するように構成された、又は、2つ以上のロールに、あらかじめ作成した輪状部を掛け、前記輪状部に中空糸条物の先端部を接続するように構成された、接続手段;
(vii)前記2つ以上のロールのうち少なくとも一方1つのロールを回転させ、前記2つ以上のロールに中空糸条物を巻き取るように構成された駆動手段;
(ix)前記2つ以上のロールの幅方向に中空糸条物をシート状に固定するように構成された固定手段;
[14]前記供給手段が、ボビン巻出装置である、[13]記載の中空糸条物シート状物の製造装置。
[15]前記中空糸条物が、中空糸膜である[13]又は[14]記載の中空糸条物シート状物の製造装置。
[16]ロール本体と、張力変動緩和手段とを備え、中空糸条物を搬送する中空糸条物搬ロールとしての使用。
<1>糸条物を搬送するためのロールであって、
前記ロールは、ロール本体と、前記糸条物ごとに前記糸条物にかかる張力の変動を緩和する張力変動緩和手段とを備える、糸条物搬送用ロール。
<2>前記張力変動緩和手段が、前記ロール本体の外周面に、周方向に間隔をあけて2箇所以上設けられている、<1>に記載の糸条物搬送用ロール。
<3>前記張力変動緩和手段が、前記糸条物にかかる張力の変動に応じて前記変動を緩和するように前記ロール本体の回転軸から前記張力変動緩和手段と接する前記糸条物までの距離を変化させる、<1>又は<2>に記載の糸条物搬送用ロール。
<4>前記張力変動緩和手段が、可撓性を有する材料からなる、<1>~<3>のいずれか一項に記載の糸条物搬送用ロール。
<5>前記ロール本体の外周面に、回転軸に平行に延びる2本以上の凹部が形成され、前記凹部に、前記可撓性を有する材料からなる張力変動緩和手段の下部が嵌合されている、<4>に記載の糸条物搬送用ロール。
<6>前記張力変動緩和手段が、前記糸条物と接触する箇所において前記ロール本体の外周面から離間するように配置されたフィルム状物である、<1>~<3>のいずれか一項に記載の糸条物搬送用ロール。
<7>前記張力変動緩和手段が、前記糸条物と接触する面が低摩擦性材料から構成された突起状物である、<1>~<3>のいずれか一項に記載の糸条物搬送用ロール。
<8>前記ロールは、駆動ロールである、<1>~<7>のいずれか一項に記載の糸条物搬送用ロール。
<9>前記糸条物は、中空糸条物である、<1>~<8>のいずれか一項に記載の糸条物搬送用ロール。
<10>前記中空糸条物は、中空糸膜である、<9>に記載の糸条物搬送用ロール。
<11>前記ロール本体の外周面に、前記糸条物のガイド溝が形成されている、<1>~<10>のいずれか一項に記載の糸条物搬送用ロール。
<12>樹脂組成物を紡糸して糸状の賦形物を得る工程を有する糸条物の製造方法であって、前記賦形物又は前記賦形物に加工を施した糸状の加工物を引き揃えて搬送する際に、<1>~<11>のいずれか一項に記載の糸条物搬送用ロールを用いる、糸条物の製造方法。
<13>前記糸条物は、中空糸膜である、<12>に記載の糸条物の製造方法。
前記張力変動緩和手段は、前記中空糸条物にかかる張力の変動に応じて前記変動を緩和するように前記ロール本体の回転軸から前記張力変動緩和手段と接する前記中空糸条物までの距離を変化させることが好ましい。
前記ロール本体の外周面に、回転軸に平行に延びる2本以上の凹部が形成され、前記凹部に、前記可撓性を有する材料からなる張力変動緩和手段の下部が嵌合されていることが好ましい。
前記張力変動緩和手段は、前記中空糸条物と接触する面が低摩擦性材料から構成された突起状物であってもよい。
前記中空糸条物は、中空糸膜であることが好ましい。
前記ロール本体の外周面に、前記中空糸条物のガイド溝が形成されていてもよい。
前記中空糸条物は、中空糸膜であることが好ましい。
<<1>>下記工程(i)~(iv)を含み、かつ、該工程で用いる少なくとも1つのロールが、張力変動緩和手段を有するロールである、中空糸膜シート状物の製造方法。
(i)中空糸膜を、2つ以上のロールを囲むように巻き回し、巻き回された中空糸膜の先端部と隣り合う中空糸膜とを接続して輪状部を形成する、又は、2つ以上のロールに、あらかじめ作成した輪状部を掛け、該輪状部に中空糸膜の先端部を接続する、接続工程;
(ii)前記2つ以上のロールの少なくとも1つのロールを回転させ、該2つ以上のロールに中空糸膜を巻き取る、巻取り工程;
(iii)前記2つ以上のロールに巻き取られた中空糸膜を幅方向にシート状に固定して固定部を形成する、固定工程;
(iv)前記固定部で切断し、中空糸膜が端部で幅方向に接続されたシート状物を得る、切断工程;
<<2>>前記張力変動緩和手段が、前記少なくとも1つのロールの外周面に、周方向に間隔をあけて2箇所以上設けられている、<<1>>記載の中空糸膜シート状物の製造方法。
<<3>>前記張力変動緩和手段が、前記中空糸膜にかかる張力の変動に応じて、前記ロールの回転軸から前記張力変動緩和手段と接する前記中空糸膜までの距離を変化させる、<<1>>又は<<2>>記載の中空糸膜シート状物の製造方法。
<<4>>前記張力変動緩和手段が、可撓性を有する材料からなる、<<1>>~<<3>>の何れか一項記載の中空糸膜シート状物の製造方法。
<<5>>前記ロールの外周面に、該ロールの回転軸に平行に延びる2本以上の凹部が形成され、該凹部に、前記可撓性を有する材料からなる張力変動緩和手段が設けられている、<<4>>記載の中空糸膜シート状物の製造方法。
<<6>>前記ロールの外周面に、前記中空糸膜用のガイド溝が形成されている<<1>>~<<5>>の何れか一項記載の中空糸膜シート状物の製造装置。
<<7>>下記手段(v)~(ix)を含み、かつ、該工程で用いる少なくとも1つのロールが、張力変動緩和手段を有するロールである、中空糸膜シート状物の製造装置。
(v)2つ以上のロールと、該2つ以上のロールに中空糸膜を供給する供給手段;
(vi)2つ以上のロールに、中空糸膜を該2つ以上のロールを囲むように巻き回し、巻き回された中空糸膜の先端部と隣り合う中空糸膜と接続して輪状部を形成するか、又は、2つ以上のロールに、あらかじめ作成した輪状部を掛け、該輪状部に中空糸膜の先端部を接続する、接続手段;
(vii)前記2つ以上のロールのうち少なくとも一方1つのロールを回転させ、該2つ以上のロールに中空糸膜を巻き取る駆動手段;
(ix)前記2つ以上のロールの幅方向に中空糸膜をシート状に固定する固定手段;
<<8>>前記張力変動緩和手段が、前記ロールの外周面に、周方向に間隔をあけて2箇所以上設けられている、<<7>>記載の中空糸膜シート状物の製造装置。
<<9>>前記張力変動緩和手段が、前記中空糸膜にかかる張力の変動に応じて、前記ロールの回転軸から前記張力変動緩和手段と接する前記中空糸膜までの距離を変化させる、<<7>>又は<<8>>記載の中空糸膜シート状物の製造装置。
<<10>>前記張力変動緩和手段が、可撓性を有する材料からなる、<<7>>~<<9>>の何れか一項記載の中空糸膜シート状物の製造装置。
<<11>>前記ロールの外周面に、回転軸に平行に延びる2本以上の凹部が形成され、該凹部に、前記可撓性を有する材料からなる張力変動緩和手段が設けられている、<<10>>記載の中空糸膜シート状物の製造装置。
<<12>>前記ロールの外周面に、前記中空糸膜のガイド溝が形成されている、<<7>>~<<11>>の何れか一項記載の中空糸膜シート状物の製造装置。
<<13>>前記供給手段が、ボビン巻出装置である、<<7>>~<<12>>の何れか一項記載の中空糸膜シート状物の製造装置。
また、空間的な制約によることなく、非常に簡便な構成で、長さ斑の少ない中空糸条物シート状物の製造装置を提供する事ができる。
つまり、本発明の中空糸条物シート状物の製造方法によれば、2つ以上のロールの少なくとも1つのロール本体に、中空糸条物にかかる張力の変動を緩和する張力変動緩和手段を備えているため、ダンサーロール等の張力変動緩和装置の適用が難しい場合においても、非常に簡便な構成で、中空糸条物ごとに前記中空糸条物にかかる張力の変動を緩和できる。
結果として、張力変動に起因する中空糸条物の伸長斑が抑制される為、長さ斑の少ない中空糸条物シート状物を、機械装置の精度や中空糸条物の品質フレによらず、安定的に得る事が出来る(図2A、B参照)。
また、中空糸条物が過度に弛んで搬送用ロールから外れてしまう等のトラブルが生じたり、逆に、過度に張ることで中空糸条物の損傷の原因となったりすることが抑えられる。
図41は、本発明の中空糸条物搬送用ロール(以下、単に搬送用ロールとも記す。)の搬送用ロールの第1の実施形態を示す側面図であり、図42は、端面図である。
搬送用ロール1010は、回転軸1012を有する円柱状のロール本体1014と、ロール本体1014の外周面に、端面方向から見て円周等分複数箇所に周方向に間隔をあけて設けられた、回転軸1012に平行に延びる凸条部材1016(張力変動緩和手段)とを備える。
撓み量を変化させることは、すなわち、ロール本体1014の回転軸1012から凸条部材1016と接する中空糸条物までの距離(回転半径)を変化させることになる。
回転軸1012から中空糸条物までの距離が変化することは、すなわち、中空糸条物の送り速度が変化することになる。
中空糸条物の送り速度が変化することは、すなわち、中空糸条物にかかる張力が変化することになる。
よって、可撓性を有する材料からなる凸条部材1016は、中空糸条物ごとに前記中空糸条物にかかる張力の変動を緩和する張力変動緩和手段として機能する。
2箇所以上の凸条部材1016は、ロールに接する一本の中空糸状物に対しかかる張力が不均等になることに起因する糸切れ防止等の観点から、周方向に等間隔に設けられていることが好ましい。
図46Aに示すように、通常の駆動ロール1110及び本発明の搬送用ロール1010からなる駆動ロールを糸道の途中に配置して中空糸条物Fを搬送する際、搬送用ロール1010の凸条部材1016が、搬送用ロール1010に対する中空糸条物Fの巻き締め力に応じて適度に撓み量を変化させることによって、駆動ロール1110と搬送用ロール1010との間における中空糸条物Fの送り速度差に起因する張力変動が緩和される。
また、中空糸条物シート状物を得るには、図46Bに示すように搬送用ロール1010を平行に配置することが好ましい。
中空糸膜は、1本の糸条体として供給可能であればよく、モノフィラメントでもあってもよく、複数の中空糸膜が合糸されたマルチフィラメントであってもよい。
図48は、本発明の搬送用ロールの第2の実施形態を示す側面図であり、図49は、端面図であり、図50は、搬送用ロールの上端部分の拡大断面図である。
搬送用ロール2010は、外周面に中空糸条物のガイド溝1020が複数形成された、回転軸1012を有する円柱状のロール本体1014と、ロール本体1014の外周面に、端面方向から見て円周等分複数箇所に周方向に間隔をあけて設けられた、回転軸1012に平行に延びる凹条部1022(凹部)と、凹条部1022に嵌合された凸条部材1016(張力変動緩和手段)とを備える。
凹部は、凸条部と嵌合する為、凸条部同様に2~32本設けられていることが好ましく、4~16本設けられていることがより好ましく、8~12本設けられることが更に好ましい。
搬送用ロールの第2の実施形態において、搬送用ロールの第1の実施形態と同じ構成については、同じ符号を付して説明を省略する。
図51は、本発明の搬送用ロールの第3の実施形態を示す側面図であり、図52は、端面図であり、図53は、搬送用ロールの左上端部分の拡大断面図である。
搬送用ロール3010は、外周面に中空糸条物のガイド溝1020が複数形成された、回転軸1012を有する円柱状のロール本体1014と、ロール本体1014の外周面に、端面方向から見て円周等分複数箇所に周方向に間隔をあけて設けられた、回転軸1012に平行に延びる帯状のフィルム1024(張力変動緩和手段、フィルム状物)とを備える。
搬送用ロールの第3の実施形態において、搬送用ロールの第1の実施形態や第2の実施形態と同じ構成については、同じ符号を付して説明を省略する。
フィルム1024は、図54に示すように、中空糸条物F(図示例では中空糸膜)にかかる張力の変動、すなわち搬送用ロール3010に対する中空糸条物Fによる巻き締め力の変動に応じて適度に撓み量を変化させることができるため、搬送用ロールの第1の実施形態や第2の実施形態における凸条部材1016と同等の効果を発揮できる。
図示例においては、フィルム状物の形態は、樹脂からなる薄膜とされているが、本発明においては、織布、不織布等の形態であってもよい。
搬送用ロールの第1の実施形態や第2の実施形態における凸条部材1016の代わりに、中空糸条物と接触する面が低摩擦性材料から構成された突起状物(張力変動緩和手段)を設けてもよい。
前記突起条物は、ロール表面よりも突出した形状を有していればよい。
ロール本体1014の外周面の一部に突起状物を設けることによって、搬送用ロール(図示略)と中空糸条物との接触抵抗を小さくすることができる。さらに、突起状物における中空糸条物と接触する面を低摩擦性材料とすることによって、搬送用ロールと中空糸条物との接触抵抗をさらに小さくすることができる。結果として、2本の駆動ロール間での中空糸条物の送り速度差によって発生する張力変動が生じた際に、中空糸条物が突起状物の表面で滑りやすくなり、これによっても中空糸条物ごとに前記中空糸条物にかかる張力の変動を緩和できる。
低摩擦性材料は、例えば、テフロン(登録商標)等のフッ素系材料、超高分子量ポリエチレン、PEEK、ポリアセタール等が挙げられる。また、突起状物表面が低摩擦であれば良く、突起状物表面に基材が低摩擦な材からなるテープ等を貼り付けてもよい。
本発明の中空糸条物の製造方法は、樹脂組成物を紡糸して中空糸状の賦形物を得る工程を有する中空糸条物の製造方法であって、前記賦形物又は前記賦形物に加工を施した糸状の加工物を引き揃えて搬送する際に、本発明の搬送用ロールを用いる方法である。
樹脂組成物を紡糸した後には、賦形が行われる。本発明の中空糸条物の製造方法は、樹脂組成物を紡糸して糸状の賦形物を得る工程の後に行われる、他の工程(洗浄、乾燥、各種加工、束状化等)を有していてもよい。
賦形物とは、樹脂組成物を紡糸し、その後、賦形した直後の糸条物である。
加工物とは、賦形物に各種加工(撚り、編み、打ち、塗工等)を施した糸条物である。
以上説明した本発明の搬送用ロールにあっては、ロール本体と、中空糸条物ごとに前記中空糸条物にかかる張力の変動を緩和する張力変動緩和手段とを備えているため、2本以上の中空糸条物を同時に搬送する場合であっても中空糸条物ごとに前記中空糸条物にかかる張力の変動を緩和できる。よって、中空糸条物にかかる張力の変動を緩和するためのダンサーロールや張力変動緩和装置を別途糸道に追加することなく、中空糸条物ごとに前記中空糸条物にかかる張力の変動を緩和できる。また、中空糸条物が過度に弛んで搬送用ロールから外れてしまう等のトラブルが生じたり、逆に、過度に張ることで中空糸条物の損傷の原因となったりすることが抑えられる。
以下、本発明の中空糸条物シート状物の製造装置の第1の実施形態について図面を参照して詳細に説明する。
図3は、本発明の第1の実施形態の中空糸条物シート状物の製造装置の概略側面図である。図4は、中空糸条物シート状物の製造装置の概略平面図である。また、図5は、本発明のロールに中空糸条物が巻き付く様子を示す平面図である。
尚、図3及び図4のロールの凸条部材又は凸条突起は図示略するが、図5の様な凸条部材(1016)または凸条突起(図示略)がロール上に形成されている。
第1ロール1と第2ロール2の間隔(ロールの軸間距離)は、製造される中空糸条物シート状物Sの長さによって適宜設定される。
張力を制御する為の手段として、例えばボビン5を固定している回転軸(駆動無し)に適度なブレーキをかける方法、ボビン5(駆動有り)とガイドロール6の間にダンサーロール(図示せず)を設置する方法が挙げられるが、これに限定はされない。
第2超音波溶着機9は、2つの第1ロール1及び第2ロール2の幅方向(中空糸条物Fの長手方向に直交する方向)に亘って中空糸条物Fをシート状に固定する機能を有している。この実施形態では、中空糸条物の搬送方向に所定間隔を置いて、2ヶ所の固定部B(図10参照)が形成される。その場合、固定手段が一度に2ヶ所の固定部を形成できる機構を有していても良いし、所望の位置で1ヶ所固定した後、ロールを回転させて、概固定部幅分だけ中空糸条物を搬送した後に再度固定部を形成しても良い。
また、第2超音波溶着機9を図示しない駆動装置により巻付方向に移動可能に構成しておけば、中空糸条物Fが停止状態であっても異なる箇所を溶着可能とする事が出来る。なお、溶着される箇所においては、中空糸条物Fの形状(中空形状)は保たれている必要はない。
図5に示すように第1ロール1と第2ロール2とは、同ピッチPで平行に密に形成された、山部Mと谷部Vからなり、幅方向に並べられた2つ以上の周方向の溝を備えている。この溝は、螺旋状に形成されているものではなく、互いに独立して形成されている。溝のピッチPは、中空糸条物Fの直径及び所望する中空糸条物シート状物における所望の中空糸膜の集積密度に依存して決められるが、中空糸条物Fの直径に対して一回り(1~3%)以上広くしておくと、後述する製造過程における、中空糸条物の溝ロール導入がよりスムーズとなり、隣接して搬送される中空糸条物同士の接触による品質低下、ズレ・絡まり等も発生しづらくなる。
図46A及びBに示すように、搬送用ロール1010を、第1ロール1及び第2ロール2に用いて中空糸条物Fを巻き取る際、搬送用ロール1010の凸条部材1016が、搬送用ロール1010に対する中空糸条物Fの巻き締め力に応じて適度に撓み量を変化させることによって、駆動ロール1110と搬送用ロール1010との間における中空糸条物Fの送り速度差に起因する張力変動が緩和される。
ここで、図42等に示される張力変動緩和手段を有するロールを、図3等で示される中空糸条物シート状物の製造方法に用いることで、張力変動に起因する中空糸条物の伸長斑が抑制される為、図2Aの様な長さ斑の少ない中空糸条物シート状物を、機械装置の精度や中空糸条物の品質フレによらず、安定的に得る事が出来る。
図10、及び11で示すシート固定工程においては、固定部Bに対して終端部T及び接続部C2は独立した位置に設けられていた。これに対し、符号B1で示す固定部は、中空糸条物シート状物Sの端部を固定すると共に、中空糸条物Fの終端部(図11の終端部Tに相当する)を固定している。また、符号B2で示す固定部と、符号C2で示す接続部とは同一線状に配置されている。このように固定部B1、B2を配置することによって、固定工程を簡略化することができるため、中空糸条物シート状物Sの回収の工程にかかる時間を短縮することができる。
さらに、切断方法は、上述したような超音波カッター11に限ることはない。例えば、切断は、刃物、ハサミ、回転刃による切断だけでなく、ヒーター線やレーザーカッター等の溶断によってもなすことができる。また、切断による切断線は直線である必要はない。
前記輪状部材Iは、中空糸膜であっても良いし、例えばチューブ状、紐状の別の繊維状物であっても良い。
尚、図21のロールの凸条部材又は凸条突起は図示略するが、図5の様な凸条部材(1016)または凸条突起(図示略)がロール上に形成されている。
本発明の中空糸条物シート状物の製造装置の第2の実施形態、図41(側面図)、図42(端面図)に示す搬送用ロール1010を、第1ロール1及び第2ロール2に用いる事も出来る。
搬送用ロール1010は、回転軸1012を有する円柱状のロール本体1014と、ロール本体1014の外周面に、端面方向から見て円周等分複数箇所に周方向に間隔をあけて設けられた、回転軸1012に平行に延びる凸条部材1016(張力変動緩和手段)とを備える。
中空糸条物シート状物の製造装置の第2の実施形態において、第1の実施形態と同じ構成については、同じ符号を付して説明を省略する。
なお、本実施の形態では、前述した実施の形態との相違点を中心に述べ、同様の部分についてはその説明を省略する。
本実施の形態の製造装置100Aは、3本の中空糸条物Fを独立して供給可能な構成としたことによって、同時に3つの中空糸条物シート状物Sを製造することができる。
尚、図22及び図23のロールの凸条部材又は凸条突起は図示略するが、図5の様な凸条部材(1016)または凸条突起(図示略)がロール上に形成されている。
本発明の中空糸条物シート状物の製造装置の第3の実施形態として、図51(側面図)、図52(端面図)、図53(搬送用ロールの左上端部分の拡大断面図)に示す搬送用ロール1010を第1ロール1及び第2ロール2に用いる事も出来る。
搬送用ロール1010は、外周面に中空糸条物のガイド溝1020が複数形成された、回転軸1012を有する円柱状のロール本体1014と、ロール本体1014の外周面に、端面方向から見て円周等分複数箇所に周方向に間隔をあけて設けられた、回転軸1012に平行に延びる帯状のフィルム1024(張力変動緩和手段、フィルム状物)とを備える。
第3の実施形態において、第1の実施形態や第2の実施形態と同じ構成については、同じ符号を付して説明を省略する。
フィルム1024は、図54に示すように、中空糸条物Fにかかる張力の変動、すなわち搬送用ロール1010に対する中空糸条物Fによる巻き締め力の変動に応じて適度に撓み量を変化させることができるため、第1の実施形態や第2の実施形態における凸条部材1016と同等の効果を発揮できる。
図示例においては、フィルム状物の形態は、樹脂からなる薄膜とされているが、本発明においては、織布、不織布等の形態であってもよい。
ロール本体1014の外周面の一部に突起状物を設けることによって、搬送用ロール1010と中空糸条物との接触抵抗を小さくすることができる。さらに、突起状物における中空糸条物と接触する面を低摩擦性材料とすることによって、搬送用ロール1010と中空糸条物との接触抵抗をさらに小さくすることができる。結果として、2本の駆動ロール間での中空糸条物の送り速度差によって発生する張力変動が生じた際に、中空糸条物が突起状物の表面で滑りやすくなり、これによっても中空糸膜ごとに前記中空糸膜にかかる張力の変動を緩和できる。
尚、図7~9の凸条部材は図示略するが、図5の様な凸条部材(1016)または凸条突起(図示略)がロール上に形成されている。
なお、図8に示すように、中空糸条物ループLが、中空糸条物Fがボビン5から供給される側から最も他端側の第1ロール1及び第2ロール2の1b及び2b側に移動した場合においても、中空糸条物Fがボビン5から供給される位置は変化しない。つまり、中空糸条物Fの供給位置を移動させる必要はない。
巻き付け完了後、図11に示すように、巻き付けられた中空糸条物Fのうち、中空糸条物Fがボビン5から供給される側、すなわち1a及び2a側に位置する中空糸条物Fを符号C2で示す接続部において固定することによって、次の中空糸条物シート状物S(第2中空糸条物シート状物)の先端A2とする。次いで、符号Tで示す、取り出す中空糸条物シート状物S(第1中空糸条物シート状物)を構成する中空糸条物Fの終端部を固定し、接続部C2と終端部Tとの間を切断する。
次に、図3で示した第2超音波溶着機9を用いて、図10の符号Bに示すように、中空糸条物F同士を2ヶ所で溶着することで固定部を形成する。この際、第2中空糸条物シート状物を構成する中空糸条物Fを除く箇所を溶着することが好ましい。
図10の状態から中空糸条物シート状物S(第1中空糸条物シート状物)が取り出されることによって、図3と同じ状態に戻り、引き続いて中空糸条物シート状物S(第2中空糸条物シート状物)の製造が可能となる。
また、製造される中空糸条物シート状物Sの長さの変更に際しては、第1ロール1及び2ロール2を変更することなく、例えば、図13及び14に示すように、巻き取り周長を調節するために、フレーム3Bの長さを調整可能な構成とすることによって、中空糸条物シート状物Sの長さの変更は容易である。ここで巻き取り周長とは、中空糸条物を巻き取った後の、2つ以上のロール間の長さを意味する。図13に示すフレーム3Bは固定箇所によって長さの変更が可能なサイドフレーム31Bによって構成されており、図13に示すような状態から図14に示すような状態に変形させることで、フレーム3Bの長さを変更させることができる。張力が強いままシート切断作業を行うと、溶着部(接続部、固定部)が割れるなどの不具合が生じる場合がある。そのため、長さの変更が可能なフレームを採用することにより、張力を緩めて上記問題を解決することができ、シート回収作業が容易になる。
尚、図13及び図14のロールの凸条部材又は凸条突起は図示略するが、図5の様な凸条部材(1016)または凸条突起(図示略)がロール上に形成されている。
このほか、例えば回転不能なシャフトを2つ以上のロールの間に入れて、中空糸条物を2つ以上のロール及びシャフトの外周に巻き取られるように巻き取った後、シャフトを抜くことでも巻き取り周長を間接的に調節することができる。
尚、図15及び図16のロールの凸条部材又は凸条突起は図示略するが、図5の様な凸条部材(1016)または凸条突起(図示略)がロール上に形成されている。
また、ロールの数は2つに限ることはなく、第1ロール1と第2ロール2以外に、第3ロール、第4ロール等、他のロールを設ける構成としてもよい。図17は、3つのロールが配された中空糸条物シート状物Sの製造装置100Bの概略側面図、図18はその概略平面図である。図では3つのロールが平行に配置されている。このような構成とすることにより、重力による中空糸条物の弛み抑制に効果的である。
尚、図18のロールの凸条部材又は凸条突起は図示略するが、図5の様な凸条部材(1016)または凸条突起(図示略)がロール上に形成されている。
また、省スペースであり、固定手段を容易に配置する事も可能である。図では1つの中空糸条物を供給する場合を例示したが、複数の中空糸条物を並列状態のまま供給してもよい。
前記輪状部材Iは、中空糸条物であっても良いし、例えばチューブ状、紐状の別の繊維状物であっても良い。
図24は、中空糸条物シート状物Sの製造装置100Cの概略側面図、図25は、中空糸条物シート状物Sの製造装置100Cの概略平面図である。
図24、及び図25に示すように、中空糸条物シート状物Sの製造装置100Cは、複数(この実施形態では3つ)のボビン5a、5b、及び5cからそれぞれ供給される中空糸条物Fa、Fb、及びFcを、第1ロール1と第2ロール2に跨り、且つ各ロール1、及び2を取り囲むように巻き付かせることによってシート状にした後、中空糸条物Fa、Fb、及びFc同士を固定・切断することによって中空糸条物シート状物S(図12参照)に加工する装置である。
さらに、複数の中空糸膜を一度に供給することにより、中空糸膜シート状物を所望の幅に形成するまでの時間を短縮することができる。
このため、中空糸膜シート状物の生産スピードを速めることが可能になる。
そして、中空糸膜をシート状に固定する手段として、所望のピッチで一列に並列配置された中空糸膜を両側から挟んで固定する固定手段を採用することが可能となる。
各ロール1、及び2の材質は、特に限定されるものではないが、中空糸条物Fa、Fb、及びFcの表面を傷付けないよう、角部及び表面の仕上げ加工を施すことが好ましい。
また、第1ロール1と第2ロール2との間隔は、製造される中空糸条物シート状物Sの長さによって適宜設定されるようになっている。
ここで、3本の中空糸条物Fa、Fb、及びFcは幅方向に並列配置された状態でロール1の溝に供給される(詳細は後述する)。このため、各ボビン5a、5b、及び5cとガイドロール6a、6b、及び6cのずれ量は、ロール1、2の溝ピッチと略同一のずれ量に設定することが望ましい。
張力を制御する為の手段として、例えば各ボビン5a、5b、及び5cを固定している回転軸(駆動無し)に適度なブレーキをかける方法、各ボビン5a、5b、及び5c(駆動有り)と各ガイドロール6a、6b、及び6cの間にダンサーロール(図示せず)を設置する方法が挙げられるが、これに限定されるものではない。
図26、図27に示すように、各ロール1、及び2には、同ピッチPで平行に密に形成された山部Mと谷部Vからなり、幅方向に並べられた2つ以上の周方向の溝21、及び22を備えている。これら溝21、及び22は、螺旋状に形成されているものではなく、互いに独立して形成されている。そして、谷部Vは、断面略円弧状に形成されている。このように谷部Vを断面略円弧状に形成することにより、中空糸条物Fa、Fb、及びFcと溝21、及び22との密着性を高めることが可能になる。
尚、溝21、及び22の形状は、谷部Vが断面略円弧状に形成されているものに限られるものではなく、例えば山部Mと谷部Vとが直線的に結ばれる形状でもよいし、溝底部が平らなものであっても良い。
図28~図30は、中空糸条物シート状物Sの製造工程を示す説明図である。
まず、図26~図30に示すように、3つのボビン5a、5b、及び5cからそれぞれ3本の中空糸条物Fa、Fb、及びFcを引き出し、これら中空糸条物Fa、Fb、及びFcを幅方向に並列配置させた状態で、各ロール1、及び2の一端側(図26、及び図27における右側、図28における下側)に供給する。そして、並列配置させた状態のまま、各ロール1、及び2を取り囲むように中空糸条物Fa、Fb、及びFcを一周巻回させる。
これにより、中空糸条物Fa、Fb、及びFcに接続部C1が形成され、さらに中空糸膜ループLが形成される。
次に、モータ12a、及び12bを駆動させ、第1ロール1、及び第2ロール2を回転させることで中空糸条物Fa、Fb、及びFcの巻き取りを開始する。すると、中空糸条物Fa、Fb、及びFcが図7の符号Rで示す矢印方向に回転する。
尚、図29に示すように、中空糸膜ループLが各ロール1、2の他端1b、2b側に移動した場合においても、中空糸条物Fa、Fb、及びFcがボビン5から供給される位置は変化しない。つまり、中空糸条物Fa、Fb、及びFcのロール1に対する供給位置を移動させる必要はない。
次に、図24に示された第2超音波溶着機9を用いて、図31に示すように、中空糸条物Fa、Fb、Fc同士を2ヶ所で溶着することで固定部Bを形成する。この際、第2中空糸膜シート状物を構成する中空糸条物Fa、Fb、及びFcを除く箇所を溶着することが好ましい。
図31の状態から中空糸条物シート状物Sが取り出されることによって、図26、図27と同じ状態に戻り、引き続いて中空糸条物シート状物Sの製造が可能となる。
また、製造される中空糸条物シート状物Sの長さの変更に際しては、各ロール1、及び2を変更することなく、例えば、フレーム3の長さを調整可能な構成とすることによって、中空糸条物シート状物Sの長さを容易に変更することが可能になる。
そして、各ボビン5a、5b、及び5cからそれぞれ中空糸条物Fa、Fb、及びFcを引き出し、これら中空糸条物Fa、Fb、及びFcを一度に各ロール1、及び2に供給するので、1本の中空糸膜を各ロール1、及び2に供給する場合と比較して、中空糸条物シート状物Sを得るまでの時間を短縮することができる。
例えば、上述の実施形態では、第1ロール1、及び第2ロール2に、それぞれモータ12a、及び12bを取り付け、各モータ12a、及び12bを互いに同期させて駆動する場合について説明した。しかしながら、これに限られるものではなく、第1ロール1、又は第2ロール2の何れか一方にモータを取り付け、第1ロール1、又は第2ロール2の何れか一方のみ回転させることで、各ロール1、2に中空糸条物Fa、Fb、及びFcを巻き付かせる構成としてもよい。
さらに、上述の実施形態では、中空糸条物Fa、Fb、及びFcに接続部C1、C2を形成するにあたって、第1超音波溶着機4を用い、固定部Bを形成するにあたって、第2超音波溶着機9を用いた場合について説明した。しかしながら、これに限られるものではなく、例えば、熱融着や、テープ、接着剤による固定、具体的には、インパルスヒーター等の熱溶着機、テープ供給装置、接着剤塗布機、治具による固定等であってもよい。
図33は、製造工程を示す説明図であり、中空糸条物シート状物Sの別の固定方法を説明する説明図、図34は、図33の部分拡大図である。
すなわち、図33、図34の符号B1、B2、及びC2で示すような位置を溶着することによって、シート固定工程を簡略化することができる。
さらに、上述の実施形態では、第1ロール1と第2ロール2との間に超音波カッター11を設け、この超音波カッター11を幅方向に移動させて中空糸条物Fa、Fb、Fcを切断する場合について説明した。しかしながら、中空糸条物Fa、Fb、Fcを切断する手段としては超音波カッター11を用いる場合に限られるものではなく、刃物、ハサミ、回転刃、ヒーター線やレーザーカッター等の手段を用いる事もできる。また、切断による切断線は直線である必要はない。
尚、図24~34のロールの凸条部材又は凸条突起は図示略するが、図5の様な凸条部材(1016)または凸条突起(図示略)がロール上に形成されている。
ロール(直径φ160×有効幅640mm、材質:PVC)表面に、溝ピッチ:3.2mm、溝高さ:1.3mm、溝部R1.5の平行溝を200本形成した後、周方向等間隔で8箇所に、溝頂部から3mm深さの窪み(幅:10mm)を設け、可撓性を有する部材(INOAC EPDM系ゴムスポ E-4188、幅:10mm×高さ:5mm×長さ:600mm)を前記窪みに嵌めて両面テープで固定したロールを2セット準備し、第1ロール及び第2ロールとした。
外径2.8mmの中空糸膜(品種:ADF2800CA-1(材質:PVDF)、三菱レイヨン株式会社製)が巻かれたボビンをボビン巻出装置にセットし、第1ロール及び第2ロールを囲むように巻き回して中空糸膜の先端部と隣り合う中空糸膜と接続して輪状部を形成した状態で、前記第1ロール及び第2ロールを、70m/分の周速となるように同期回転させて、前記第1ロール及び第2ロールの周りに100本の中空糸膜が配列される状態になるまで巻き取った。
前記配列された中空糸膜の長手方向の1箇所に、幅50mmのテープを幅方向全体に貼り付けた後、テープ中央部をハサミで切断して中空糸膜シート状物を得た。尚、ボビンから中空糸膜を巻き出す際の張力は、430~460g/filの範囲で一定となるようにコントロールした。
ロール(直径φ160×有効幅640mm、材質:PVC)表面に、溝ピッチ:3.2mm、溝高さ:1.3mm、溝部R1.5の平行溝を200本形成したものを2セット準備し、第1ロール及び第2ロールとした。それ以外は、実施例1と同様の条件で中空糸膜シート状物を得た。
この時、一連のシート生産の中で、ボビンは変更せず、実施例1と比較例1の条件(ロール)を概ね交互に変更して、中空糸膜シート状物を得た。
この時、実施例1の条件で得られた中空糸膜シート状物を実施例1-1~1-5、比較例1の条件で得られた中空糸膜シート状物を比較例1-1~1-5とし、これらの結果を、表1に示す。
実施例及び比較例で得られたそれぞれのシート状物を構成する100本の中空糸膜の中で、最長の中空糸膜と最短の中空糸膜の長さの差分ΔLを計測とした。この結果を、表1に示す。
本発明により、中空糸膜の長さ斑の少ないシートを安定的に得る事が可能であった。
一般に、中空糸膜は、その形状や製造工程の煩雑さから、1本の中空糸膜中で形状に差異があるのが一般的であり、このような中空糸膜で安定的に長さ斑の少ないシート状物を得るためには、本願発明は有効である。
本発明の中空糸条物シート状物の製造方法及び製造装置によれば、トラバース機構が不要である。また、中空糸条物をシート状に固定する手段として、一列に並べられた中空糸条物を両側から挟んで固定する固定手段を採用することが可能となる等、長さ斑の少ない中空糸条物シート状物を非常に簡便な装置構成で製造することができる。
C 接続部
F 中空糸条物
L 中空糸条物ループ(輪状部)
S 中空糸条物シート状物
1 第1ロール(ロール)
2 第2ロール(ロール)
3 フレーム
4 第1超音波溶着機(接続手段)
5 ボビン
6 ガイドロール
7 ホーン
8 アンビル
9 第2超音波溶着機(固定手段)
10 ベース
11 超音波カッター(切断手段)
12 モータ(駆動手段)
1010、2010、3010 搬送用ロール
1012 回転軸
1014 ロール本体
1016 凸条部材
1018 保護部材
1020 ガイド溝
1022 凹条部
1024 フィルム
1110 駆動ロール
1120 駆動ロール
V1 送り速度
V2 送り速度
Va 送り速度
Vb 送り速度
Claims (16)
- ロール本体と、張力変動緩和手段とを備える、中空糸条物搬送用ロール。
- 前記張力変動緩和手段が、前記ロール本体の外周面に、周方向に間隔をあけて2箇所以上設けられている、請求項1記載の中空糸条物搬送用ロール。
- 前記張力変動緩和手段が、前記ロール本体の回転軸から前記張力変動緩和手段と接する前記中空糸条物までの距離を変化させるように構成されている、請求項1又は2に記載の中空糸条物搬送用ロール。
- 前記張力変動緩和手段が、可撓性を有する材料からなる、請求項1~3の何れか一項に記載の中空糸条物搬送用ロール。
- 前記ロール本体の外周面に、回転軸に平行に延びる2本以上の凹部が形成され、前記凹部に、前記可撓性を有する材料からなる張力変動緩和手段が設けられている、請求項4に記載の中空糸条物搬送用ロール。
- 前記張力変動緩和手段が、前記中空糸条物と接触する箇所において前記ロール本体の外周面から離間するように配置されたフィルム状物である、請求項1~3の何れか一項に記載の中空糸条物搬送用ロール。
- 前記張力変動緩和手段が突起状物であって、前記突起状物の前記中空糸条物と接触する面が低摩擦性材料から構成されてなる、請求項1~3の何れか一項に記載の中空糸条物搬送用ロール。
- 前記ロールは、駆動ロールである、請求項1~7の何れか一項に記載の中空糸条物搬送用ロール。
- 前記ロール本体の外周面に、前記中空糸条物用のガイド溝が形成されている、請求項1~8の何れか一項に記載の中空糸条物搬送用ロール。
- 前記中空糸条物が、中空糸膜である、請求項1~9の何れか一項に記載の中空糸条物搬送用ロール。
- 下記工程(i)~(iv)を含み、かつ、前記工程で用いる少なくとも1つのロールが、請求項1~9の何れか一項に記載の中空糸条物搬送用ロールである、中空糸条物シート状物の製造方法。
(i)中空糸条物を、2つ以上のロールを囲むように巻き回し、前記巻き回された中空糸条物の先端部と隣り合う中空糸条物とを接続して輪状部を形成する、又は、2つ以上のロールに、あらかじめ作成した輪状部を掛け、前記輪状部に中空糸条物の先端部を接続する、接続工程;
(ii)前記2つ以上のロールの少なくとも1つのロールを回転させ、前記2つ以上のロールに中空糸条物を巻き取る、巻取り工程;
(iii)前記2つ以上のロールに巻き取られた中空糸条物を幅方向にシート状に固定して固定部を形成する、固定工程;
(iv)前記固定部で切断し、中空糸条物が端部で幅方向に接続されたシート状物を得る、切断工程; - 前記中空糸条物が、中空糸膜である、請求項11記載の中空糸条物シート状物の製造方法。
- 下記手段(v)~(ix)を含み、かつ、前記工程で用いる少なくとも1つのロールが、請求項1~9の何れか一項に記載の中空糸条物搬送用ロールである、中空糸条物シート状物の製造装置。
(v)2つ以上のロールと、前記2つ以上のロールに中空糸条物を連続的に供給するように構成された供給手段;
(vi)2つ以上のロールに、連続的に供給可能な中空糸条物を前記2つ以上のロールを囲むように巻き回し、前記巻き回された中空糸条物の先端部と隣り合う中空糸条物と接続して輪状部を形成するように構成された、又は、2つ以上のロールに、あらかじめ作成した輪状部を掛け、前記輪状部に中空糸条物の先端部を接続するように構成された、接続手段;
(vii)前記2つ以上のロールのうち少なくとも一方1つのロールを回転させ、前記2つ以上のロールに中空糸条物を巻き取るように構成された駆動手段;
(ix)前記2つ以上のロールの幅方向に中空糸条物をシート状に固定するように構成された固定手段; - 前記供給手段が、ボビン巻出装置である、請求項13記載の中空糸条物シート状物の製造装置。
- 前記中空糸条物が、中空糸膜である、請求項13又は14記載の中空糸条物シート状物の製造装置。
- ロール本体と、張力変動緩和手段とを備え、中空糸条物を搬送する中空糸条物搬ロールとしての使用。
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---|---|---|---|---|
JP2016209976A (ja) * | 2015-05-13 | 2016-12-15 | 矢崎総業株式会社 | チューブ切断装置 |
CN108348858A (zh) * | 2015-10-20 | 2018-07-31 | 三菱化学株式会社 | 中空纤维膜片状物的制造方法以及中空纤维膜片状物的制造装置 |
EP3797858A1 (de) * | 2019-09-30 | 2021-03-31 | Leibniz-Institut für Oberflächenmodifizierung e.V. | Vorrichtung zum spülen oder imprägnieren einer membranfaser |
EP3799950A1 (de) * | 2019-09-30 | 2021-04-07 | Leibniz-Institut für Oberflächenmodifizierung e.V. | Vorrichtung zum spülen und imprägnieren einer filtermembranbahn |
WO2021231704A1 (en) * | 2020-05-14 | 2021-11-18 | Saudi Arabian Oil Company | Production of thin film composite hollow fiber membranes |
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CN113668080B (zh) * | 2021-09-28 | 2022-06-14 | 山东路德新材料股份有限公司 | 一种纺丝牵伸装置及聚丙烯长丝土工布生产线 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4833110A (ja) * | 1971-08-27 | 1973-05-08 | ||
WO2012036235A1 (ja) * | 2010-09-16 | 2012-03-22 | 三菱レイヨン株式会社 | 中空糸膜シート状物の製造方法、中空糸膜モジュールの製造方法及び中空糸膜シート状物の製造装置 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3208752B2 (ja) * | 1995-06-20 | 2001-09-17 | 山王鉄工株式会社 | 張力付与用ロール |
CN1163856A (zh) * | 1996-01-25 | 1997-11-05 | 有限会社黑岩电子工业 | 用于丝状材料的张力控制装置 |
JP4419248B2 (ja) * | 2000-02-08 | 2010-02-24 | 東レ株式会社 | 糸条張力付与装置および糸条束形成装置 |
DE102006057101A1 (de) * | 2006-12-04 | 2008-06-05 | Fresenius Medical Care Deutschland Gmbh | Vorrichtungen und Verfahren zur Herstellung von Faserbündeln |
JP5356778B2 (ja) * | 2008-11-06 | 2013-12-04 | Tmtマシナリー株式会社 | 紡糸巻取機 |
CN201395446Y (zh) * | 2009-04-29 | 2010-02-03 | 北京福斯汽车电线有限公司 | 一种多丝绞合放线张力控制装置 |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4833110A (ja) * | 1971-08-27 | 1973-05-08 | ||
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---|---|---|---|---|
JP2016209976A (ja) * | 2015-05-13 | 2016-12-15 | 矢崎総業株式会社 | チューブ切断装置 |
CN108348858A (zh) * | 2015-10-20 | 2018-07-31 | 三菱化学株式会社 | 中空纤维膜片状物的制造方法以及中空纤维膜片状物的制造装置 |
CN108348858B (zh) * | 2015-10-20 | 2021-04-23 | 三菱化学株式会社 | 中空纤维膜片状物的制造方法以及中空纤维膜片状物的制造装置 |
EP3797858A1 (de) * | 2019-09-30 | 2021-03-31 | Leibniz-Institut für Oberflächenmodifizierung e.V. | Vorrichtung zum spülen oder imprägnieren einer membranfaser |
EP3799950A1 (de) * | 2019-09-30 | 2021-04-07 | Leibniz-Institut für Oberflächenmodifizierung e.V. | Vorrichtung zum spülen und imprägnieren einer filtermembranbahn |
WO2021231704A1 (en) * | 2020-05-14 | 2021-11-18 | Saudi Arabian Oil Company | Production of thin film composite hollow fiber membranes |
US11253819B2 (en) | 2020-05-14 | 2022-02-22 | Saudi Arabian Oil Company | Production of thin film composite hollow fiber membranes |
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