WO2016084115A1 - トウバンドの製造方法及びトウバンド製造装置 - Google Patents

トウバンドの製造方法及びトウバンド製造装置 Download PDF

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Publication number
WO2016084115A1
WO2016084115A1 PCT/JP2014/005943 JP2014005943W WO2016084115A1 WO 2016084115 A1 WO2016084115 A1 WO 2016084115A1 JP 2014005943 W JP2014005943 W JP 2014005943W WO 2016084115 A1 WO2016084115 A1 WO 2016084115A1
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WO
WIPO (PCT)
Prior art keywords
filaments
spinning
amount
tow band
acetone
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PCT/JP2014/005943
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English (en)
French (fr)
Japanese (ja)
Inventor
尚久 岩本
博文 辻田
一平 堀本
篤 府藤
Original Assignee
株式会社ダイセル
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 株式会社ダイセル filed Critical 株式会社ダイセル
Priority to JP2016561098A priority Critical patent/JP6359117B2/ja
Priority to CN201480083695.2A priority patent/CN107002312B/zh
Priority to PCT/JP2014/005943 priority patent/WO2016084115A1/ja
Publication of WO2016084115A1 publication Critical patent/WO2016084115A1/ja

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    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06H—MARKING, INSPECTING, SEAMING OR SEVERING TEXTILE MATERIALS
    • D06H3/00—Inspecting textile materials
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F2/00—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof
    • D01F2/24—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from cellulose derivatives
    • D01F2/28—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from cellulose derivatives from organic cellulose esters or ethers, e.g. cellulose acetate
    • D01F2/30—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from cellulose derivatives from organic cellulose esters or ethers, e.g. cellulose acetate by the dry spinning process

Definitions

  • the present invention relates to a tow band manufacturing method and a tow band manufacturing apparatus.
  • filament In this document, the terms “filament”, “yarn”, “tow band”, “filament denier”, “total denier”, and “clogging amount” are defined as follows.
  • Fiber refers to one fiber (single fiber) that is spun from one spinning hole.
  • Fiber refers to one fiber bundle (aggregate of single fibers) obtained by uniting a plurality of filaments spun in one spinning cylinder.
  • Tow band refers to a bundle of multiple filaments in which all yarns equivalent to a spinning cylinder, that is, all filaments spun by all spinning machines are combined and crimped.
  • “Filament denier” is the fineness of a filament (single fiber) expressed by mass (g) per unit length of 9000 m, and is hereinafter also referred to as “FD”.
  • the FD of the toe band means the fineness of one filament constituting the toe band.
  • Total denier is the fineness of the tow band expressed by mass (g) per unit length of 9000 m, and is hereinafter also referred to as “TD”.
  • “Clogging amount” is the net weight of the tow band filled in one filter rod.
  • a material for a cigarette filter (also referred to as “plug” or “chip filter”), for example, a tow band using cellulose acetate fiber is used.
  • Weight% in the description relating to the weight of acetone, water and volatile components contained in the plurality of filaments refers to the weight ratio of the plurality of filaments to the dry weight.
  • Patent Documents 1 and 2 disclose a tow band and a manufacturing method thereof.
  • the tow band is opened and a plasticizer is added to form a cylindrical shape.
  • the outer periphery of the tow band is wound with a wrapping paper and cut into a predetermined length to form a filter rod.
  • the filter rod is further cut to a predetermined length to obtain a cigarette filter.
  • a fine filament (also referred to as “fly”) made of short single fibers may be generated when the tow band is opened. is there.
  • This filamentous body may absorb the plasticizer in the manufacturing process (winding process) of the cigarette filter. And it can mix in a filter rod as an impurity in the state which absorbed the plasticizer.
  • the plasticizer contained in the filaments dissolves cellulose acetate filaments and generates melt holes called melt holes, which may lead to quality degradation.
  • Patent Document 3 a technique has been developed in which water is added to a filament to plasticize it, thereby reducing the burden on the filament during crimping and making the filament difficult to damage.
  • the effect is not sufficient, and there is still room for improvement.
  • This invention is made in view of the said subject, Comprising: It aims at reducing the malfunction by the filamentous body of a tow band.
  • a method for producing a tow band includes a spinning step of spinning a plurality of filaments using a spinning solution containing acetone, and the plurality of strands spun in the spinning step.
  • a roll feeding step in which the filament is brought into contact with the peripheral surface of the godet roll, the godet roll is driven to send it downstream in the conveying direction, and after the roll feeding step, water is attached to the plurality of filaments to crimp
  • a hydrating step for adjusting the amount of water contained in the plurality of filaments when crimped by a machine, and a residual volatile component contained in the plurality of filaments after the roll feeding step and before the hydrating step.
  • a spinning step comprising: a measuring step for measuring the amount; and a crimping step for crimping the plurality of filaments with the crimping machine after the hydrofitting step. The extent, based on the measurement result of the measuring step, and adjusts the acetone content in the said plurality of filaments upon contact with the godet roll.
  • a tow band manufacturing apparatus includes a spinning machine that spins a plurality of filaments using a spinning solution containing acetone, and a peripheral surface of the plurality of filaments spun by the spinning machine.
  • a measuring device for measuring the residual amount of volatile components contained in the plurality of filaments before being processed, and the spinning machine is based on the measurement result of the measuring device.
  • the acetone content in the said plurality of filaments upon contact with the godet roll is configured to be adjustable.
  • the filament can be appropriately plasticized by adding an appropriate amount of acetone to a plurality of filaments in contact with the godet roll. Accordingly, when a plurality of filaments come into contact with the godet roll and are conveyed by the godet roll, even if an external force such as tension or friction force reaches the filament, the filament exhibits flexibility and is hardly damaged. Moreover, the filament can be plasticized with the acetone and an appropriate amount of water by adjusting the moisture content of the filament when contacting the crimper. Therefore, when a plurality of filaments are crimped by a crimping machine, the plurality of filaments are crimped while being prevented from being damaged. Thereby, generation
  • the ratio of water and acetone contained in the plurality of filaments measured at the first position (for example, the position near the godet roll) in the filament conveyance direction is determined to be the second position ( For example, it is found that there is a correlation with the ratio of water and acetone contained in a plurality of filaments measured at a position downstream of the godet roll in the transport direction and upstream of the crimper in the transport direction). ing. Therefore, for example, by measuring the residual amount of volatile components contained in the plurality of filaments at the first position, water and acetone contained in the plurality of filaments are maintained at appropriate amounts at the second position. Can be inspected. Based on the measurement result of the residual amount of the volatile component, the operator can manage each amount of acetone and water contained in the plurality of filaments. Therefore, it is possible to appropriately crimp a plurality of filaments and to suppress the occurrence of filaments.
  • FIG. It is a figure which shows the whole structure of the toe band manufacturing apparatus which concerns on Embodiment 1.
  • FIG. It is a partially expanded view which shows the structure of the crimped toe band. It is a graph which shows each component ratio in the volatile component contained in a filament. It is a graph which shows the relationship between the volatile component contained in a filament, and the generation amount of the filamentous body which generate
  • the tow band manufacturing apparatus 1 includes a mixer 2, a filter 3, a spinning machine 4, a crimper 5, a dryer 6, a pair of transport rolls 7, a packing machine 8, A hydrogenation apparatus 13 and a measuring device 16 are provided.
  • the mixer 2 has a container and a stirrer disposed in the container, and mixes the spinning stock solution containing the material of the filament F, the organic solvent, and the like charged in the container.
  • the material of the filament F includes cellulose acetate.
  • the organic solvent includes acetone.
  • the mixer 2 is used for the purpose of adjusting the spinning dope.
  • the filter 3 is used for the purpose of filtering the spinning dope prepared by the mixer 2 to remove impurities.
  • the spinning machine 4 includes a plurality of spinning cylinders 11 arranged side by side, a spinneret 12 arranged in each spinning cylinder 11, and a metering pump (not shown).
  • Each spinning cylinder 11 is a long cylindrical body that extends vertically.
  • the spinneret 12 is provided at the upper end of the spinning cylinder 11.
  • Each of the spinning cylinders 11 is provided with an air passage 11a communicating with each other.
  • a blower 11b for supplying air to the inside of the spinning tube 11 and an air adjusting unit 11c for adjusting the temperature and humidity of the air supplied to the inside of the spinning tube 11 are arranged in the air passage 11a. .
  • a predetermined number of plural spinning holes 12 a are formed in the spinneret 12.
  • the FD of the filament F is adjusted to a predetermined range by adjusting the peripheral shape and size of the spinning hole 12 a of the spinneret 12.
  • the spinning stock solution is sent to each spinneret 12 by a metering pump (not shown), and spinning is performed downward from the spinning hole 12a inside the spinning cylinder 11. Dispense the stock solution.
  • the air adjusted to a predetermined temperature and humidity is supplied into the spinning cylinder 11 through the air passage 11a to cool the discharged spinning stock solution.
  • a part of the volatile components contained in the spinning dope is volatilized and dried. Thereby, a plurality of filaments F are spun.
  • Volatile components contained in the spinning dope include water and organic solvents including acetone.
  • the volatilization amount of the volatile component can be adjusted by changing the drying condition of the filament F.
  • drying conditions of the filament F for example, the temperature and humidity of the air fed into the spinning cylinder 11 are adjusted using the air adjusting unit 11c, and the supply amount of the air fed into the spinning cylinder 11 is adjusted using the blower 11b. It can be changed by adjusting.
  • each of the spinning cylinders 11 it is not essential for each of the spinning cylinders 11 to communicate with each other through one air passage 11a.
  • each of the spinning cylinders 11 may be provided with an air passage 11a that communicates with the air adjusting unit 11c.
  • the oiling device 14, the godet roll 15, the guide member 9, and the converging means 10 are arranged on the downstream side in the transport direction of the plurality of filaments F below the spinning cylinders 11, respectively.
  • the oiling device 14 is used for the purpose of imparting slipperiness to the plurality of filaments F by attaching an oil emulsion containing a fiber oil agent and water to the plurality of filaments F.
  • the godet roll 15 is also referred to as a feed roll, and is used for the purpose of forming a yarn Y by bringing a plurality of filaments F, to which the oil emulsion is adhered, into contact with the peripheral surface, and uniting them together.
  • the united yarn Y (a plurality of filaments F) is conveyed downstream by driving the godet roll 15 in the roll feeding step.
  • the united yarn Y (the plurality of filaments F) conveyed downstream by the godet roll 15 in this way is guided to the guide member 9 by being brought into contact with one or more guide members 9, and further downstream.
  • the guide member 9 is a member that contacts the united yarn Y (a plurality of filaments F), and includes a guide pin as an example.
  • one or more guide members 9 are arranged on the downstream side of the godet roll 15 in the conveying direction of the united yarn Y (a plurality of filaments F).
  • the plurality of yarns Y conveyed from each of the godet rolls 15 are converged in a band shape by the converging means 10 and conveyed to the crimper 5 side.
  • the measuring instrument 16 includes, as an example, a near-infrared spectrophotometer (NIRS), and includes a measurement unit 16a that measures near-infrared rays and a display unit 16b that displays measurement results.
  • NIRS near-infrared spectrophotometer
  • the measuring device 16 is arranged between the godet roll 15 and the water adhering apparatus 13 in the conveying direction of the yarn Y (multiple filaments F), more specifically, the converging means 10 and the water adhering apparatus 13. And used for the purpose of measuring the residual amount of volatile components contained in the yarn Y (multiple filaments F).
  • the measuring unit 16a is a volatile component (water, acetone, a component of fiber oil, etc.) contained in the yarn Y (multiple filaments F) that is unloaded from the focusing means 10 and conveyed to the crimper 5. It is arranged so that the residual amount of (including) can be measured. As an example, the measuring device 16 measures the residual amount of the volatile component contained in the plurality of filaments F as a total amount obtained by summing the residual amount for each component.
  • the display unit 16b displays the measurement result by the measurement unit 16a as a measurement value or a graph created by arranging a plurality of measurement values.
  • the water soaking device 13 is a device that attaches a predetermined amount of water to a yarn Y from a hollow nozzle (not shown) having a slit-shaped opening, and a blower or head tank (not shown) is connected to the nozzle via a pipe. Water is supplied to the nozzle by the pressure of the blower or the head pressure of the head tank. Pure water is suitable as the water to be introduced. In the toe band manufacturing apparatus 1, the water soaking apparatus 13 is disposed between the measuring device 16 and the crimper 5 in the yarn Y conveying direction.
  • the crimper 5 is a stuffing box type, and includes a pair of rolls 5a and 5b, a pair of plate-like members 5c and 5d, and an urging member 5e.
  • the crimper 5 conveys the yarn Y (filament F) from the left side to the right side.
  • the rolls 5a and 5b are drive rolls having the same configuration as an example, and are also referred to as nip rolls or push rolls.
  • the rolls 5a and 5b are axially supported such that their axial axes are arranged in parallel and the circumferential surfaces of the rolls 5a and 5b are opposed to each other.
  • Nip points A1 and A2 are formed at contact portions of the peripheral surfaces of the rolls 5a and 5b.
  • the pair of plate-like members 5c and 5d has their respective plate surfaces facing in the vertical direction on the downstream side in the conveyance direction of the yarn Y, and each end portion 5c1 and 5d1 on the upstream side in the conveyance direction of the yarn Y. It arrange
  • the pair of plate-like members 5c and 5d is combined with a pair of side wall members (not shown) extending in the vertical direction to constitute a crimper box 5f.
  • the urging member 5e is urged so as to press the plurality of yarns Y toward the plate surface of the plate-like member 5d.
  • the urging member 5e is configured as a plate-like body, and is connected to the plate-like member 5c at an end portion 5e1 located on the upstream side in the yarn Y conveyance direction.
  • the urging member 5e swings up and down with the connecting portion with the plate member 5c as the swing center P.
  • the outlet side end portion 5e2 located on the downstream side in the conveying direction of the yarn Y presses the plate surface of the plate-like member 5d by applying a pressing force of a diaphragm valve (not shown) by air supply. Is biased in the direction.
  • the urging member 5e is arranged so that a predetermined crimp pressure is applied to the plurality of yarns Y in a direction perpendicular to the conveying direction of the yarn Y and the axial direction of the pair of rolls 5a and 5b. .
  • a plurality of yarns Y to be conveyed are passed between the pair of rolls 5a and 5b, and a predetermined nip pressure is applied to the plurality of yarns Y at the nip points A1 and A2.
  • a plurality of yarns Y are extruded from the rolls 5a and 5b. Thereby, a fine crimp is applied to the plurality of yarns Y.
  • the plurality of yarns Y are conveyed downstream in the crimper box 5f by driving the rolls 5a and 5b.
  • the plurality of yarns Y slightly stay in the crimper box 5f.
  • the plurality of yarns Y are further crimped by being folded while meandering in a waveform toward the downstream side in the conveyance direction inside the crimper box 5f.
  • the plurality of yarns Y are carried out of the crimper box 5f, the plurality of yarns Y are further crimped by the crimp pressure applied from the urging member 5e.
  • a plurality of yarns Y are crimped in stages. Thereby, a toe band TB0 is formed.
  • FIG. 2 is a partially enlarged view showing the configuration of the crimped toe band TB0.
  • the toe band TB is crimped so that peak portions TBa and valley portions TBb are alternately formed in the yarn Y conveyance direction.
  • the crimper 5 is set so that the number of crimps of a plurality of yarns Y is 30 or more and 35 or less per 25 mm.
  • the tow band TB0 unloaded from the crimper 5 is dried by the dryer 6 so that residual solvent and water are removed to some extent. Thereby, the tow band TB is obtained.
  • the dried tow band TB is transported between a pair of transport rolls 7, folded into a bale by the packing machine 8, and compressed and packed.
  • the toe band TB is used for manufacturing a filter rod using a filter rod manufacturing apparatus 20 described later.
  • the amount of acetone contained in the plurality of filaments F when contacting the godet roll 15 is 2 wt% or more and 17 wt% or less, with the target value being set inside the spinning cylinder 11.
  • Filament F drying conditions are set.
  • the drying condition includes an operation of adjusting any one of the spinning speed, the air supply amount from the outside to the inside of the spinning cylinder 11, and the internal temperature of the spinning cylinder 11.
  • the amount of water contained in the plurality of filaments F is 20 wt% or more and 50 wt% or less.
  • the amount of moisture to be attached to the plurality of filaments F in the water soaking apparatus 13 is set.
  • the amount of moisture is determined by the number of rotations of the blower when water is supplied to the nozzle of the water soaking apparatus 13 by the pressure of the blower, or the water pressure by the head pressure of the head tank to the nozzle. The operation of adjusting one of the flow control valves for adjusting the flow rate when supplying the gas.
  • the filament F when the filament F contacts the peripheral surface of the godet roll 15, the filament F is plasticized by containing an appropriate amount of acetone. Accordingly, when the filament F is conveyed in contact with the godet roll 15 and the guide member 9 in order, even if an external force such as tension or friction force is applied to the filament F, the filament F exhibits flexibility and is not easily damaged.
  • the plurality of filaments F in the plurality of yarns are plasticized by containing appropriate amounts of water and acetone. Therefore, when crimping a plurality of filaments F with the crimper 5, when external forces such as nip pressure and crimp pressure reach the filament F, or when folding a plurality of yarns Y inside the crimper box 5f, Even when the frictional force or the like from the inner wall of the crimper box 5f reaches the filament F, the plurality of filaments F exhibit flexibility and are not easily damaged. Thereby, when crimping several filament F with the crimper 5, it can crimp appropriately, preventing damage.
  • a tow band TB for producing these thin cigarette filters a tow band TB having a small TD and a large FD (for example, TD is 10,000 to 22000 and FD is 6 to 10).
  • the filament F is plasticized by containing an appropriate amount of water and acetone (hereinafter, these two are referred to as “plasticizer”). Is less susceptible to damage and can be crimped well. Thereby, the tow band TB which crimped the several filament F appropriately and suppressed generation
  • the volatile components contained in the plurality of filaments F are caused by the drying condition of the plurality of filaments F, or the contact of the plurality of filaments F with any of the godet roll 15, the guide member 9, and the focusing means 10. May be deprived and reduced.
  • FIG. 3 is a graph showing the ratio of each component in the volatile components contained in the filament.
  • FIG. 3 shows three different patterns of measurement results C1, C2, and C3 that can be considered as measurement results by the measuring instrument 16. In each of the measurement results C1, C2, and C3, each component ratio of water, acetone, and the fats and oils in the fiber oil agent of the oil emulsion in the volatile components contained in the plurality of filaments F is shown.
  • the residual amount of volatile components contained in the plurality of filaments F is the measurement value N1 of the measurement result C1, the measurement value N2 of the measurement result C2, and the measurement value N3 of the measurement result C3. Like, it fluctuates to a different value.
  • the ratio of each component of water and acetone in the residual amount of each volatile component is substantially constant, and in the conveying direction of the filament F, the first Each ratio of water and acetone contained in the plurality of filaments F measured at the position is correlated with the ratio measured at the second position.
  • the amount of acetone contained in the plurality of filaments F in contact with the godet roll 15 is kept at 2% by weight or more as at least the minimum reference amount. It is known from experiments conducted by the inventors.
  • a measurement process for measuring the residual amount of volatile components contained in the plurality of filaments F is performed after the roll feeding process and before the water soaking process. . Thereby, the operator determines whether the amount of acetone contained in the plurality of filaments F when contacting the godet roll 15 is maintained at 2% by weight or more of the minimum reference amount and 17% by weight or less of the maximum reference amount. inspect.
  • the operator determines the ratio of each component of water and acetone in the total volatile component, such as a gas chromatography device. It grasps beforehand using a means. Thereafter, the operator measures the residual amount of the volatile component contained in the yarn Y (a plurality of filaments F) carried out from the converging means 10 and transported to the water soaking apparatus 13 side by the measuring device 16. The measurement result of the residual amount of the volatile component is displayed on the display unit 16b.
  • the amount of acetone contained in the plurality of filaments F can be calculated by performing a simple calculation based on the component ratio of acetone obtained using the means. As described above, the operator adjusts the drying condition of the spinning solution by supplying air to the spinning cylinder 11 based on the measurement result of the measuring device 16, so that the amount of acetone contained in the plurality of filaments F is adjusted. Can be adjusted.
  • the amount of acetone contained in the plurality of filaments F when contacting the godet roll 15 can be adjusted by the operator adjusting either the blower 11b or the air adjusting unit 11c. Therefore, the operator can manage the amount of acetone contained in the plurality of filaments F.
  • the operator confirms the residual amount of the volatile component displayed on the display unit 16b, and in the same manner as the above-described calculation of the acetone amount, the operator uses the water component ratio previously obtained by means such as a gas chromatography device.
  • the amount of moisture contained in the plurality of filaments F can be calculated by performing a simple calculation based on this. In this way, the operator adjusts the amount of water contained in the plurality of filaments F by readjusting the oiling device 14 or the hydrogenation device 13 as necessary based on the measurement result of the measuring device 16. Is possible. Therefore, the operator can manage the amount of water contained in the plurality of filaments F.
  • FIG. 4 is a graph showing the relationship between the volatile component contained in the filament and the amount of filamentous material generated when a tow band formed using the filament is opened. Specifically, the graph shows a residual amount of volatile components contained in the plurality of filaments F when the plurality of filaments F come into contact with the godet roll 15 (hereinafter, “remaining volatile components” And the amount of filamentous material generated when the tow band TB comprising a plurality of filaments F is opened is shown. The residual amount of volatile components is shown as a measured value measured by the measuring device 16.
  • the environmental conditions for measuring the residual amount of volatile components with the measuring device 16 were set to the environmental conditions (room temperature 25 ° C.) of a normal tow band production line.
  • the moisture content contained in the plurality of filaments F when the plurality of filaments F were first crimped by the crimper 5 was adjusted to be 20 wt% or more and 50 wt% or less.
  • F1 in FIG. 4 is the generation amount of the filamentous material when the residual amount of the volatile component is the measured value N4.
  • the upper limit of the allowable range of the filamentous material generation amount when the tow band is actually produced is shown. .
  • Another confirmation test conducted by the inventors is that when the residual amount of the volatile component is larger than the measured value N6 slightly exceeding the measured value N5, it becomes difficult to crimp the plurality of filaments F in the crimper 5. I understood. As one of the reasons, it is considered that when the residual amount of the volatile component increases, the amount of the plasticizer in the volatile component increases and the filament F is excessively plasticized. Such excessive plasticization of the filament F may make it difficult to apply appropriate tension to the plurality of filaments F when the filament F is crimped or when the tow band TB is opened.
  • the generated amount can be suppressed within an allowable range of F1 or less, and a plurality of filaments F can be crimped well.
  • X1 was 2% by weight and X2 was 17% by weight.
  • %Met the component ratio of acetone when the filament F is in contact with the godet roll 15 is preferably in the range of 2 wt% to 17 wt%, for example.
  • FIG. 5 is a diagram showing the configuration of the filter rod manufacturing apparatus.
  • the filter rod manufacturing apparatus 20 includes a first fiber opening jet device 21, a second fiber opening jet device 22, a pretension roll 23, a first fiber opening roll 24, and a second fiber opening.
  • a roll 25, a third fiber opening jet device 26, a spray booth 27, a feed roll 28, a transport jet device 29, a funnel 30, a cylindrical body 32, and a rotating blade 33 are provided.
  • the bale-like tow band TB is unwound from the packing box B, and the tow band TB is passed through the first opening jet device 21 and the second opening jet device 22 in this order. Open TB.
  • the plurality of filaments F in the toe band TB are spread thinly, and the width of the toe band TB is adjusted.
  • the tow band TB is passed between the pair of rolls 23 a and 23 b in the pretension roll 23.
  • the pretension roll 23 a constant tension is applied to the toe band TB, and between the pair of rolls 24a, 24b in the first opening roll 24 and a pair of rolls 25a in the second opening roll 25,
  • the tow band TB is sequentially passed between 25b.
  • the tow band TB is further opened and the width of the tow band TB is adjusted by the difference in the rotation speed.
  • the width of the toe band TB is adjusted by opening the toe band TB when passing through the third spread jet device 26.
  • a plasticizer such as triacetin is attached to the tow band TB that has been sufficiently opened in a plurality of stages by spraying at the spray booth 27.
  • the tow band TB is transported between the feed rolls 28, and inside the cylindrical transport jet device 29, the tow band TB is compressed into a cylindrical shape with a predetermined filling amount and molded.
  • the formed columnar tow band TB is fed into the conical funnel 30 and the wrapping paper 31 is wound around the outer periphery of the columnar tow band TB. Subsequently, the wrapping paper 31 is attached to the toe band TB with an adhesive inside the cylinder 32.
  • a plurality of filter rods FR are manufactured by cutting the tow band TB and the wrapping paper 31 into a predetermined length (for example, a length of about 100 mm or more and 120 mm or less) by the rotating blade 33.
  • the obtained filter rod FR is further cut into a predetermined length and used as a cigarette filter.
  • This cigarette filter is configured by compressing a predetermined amount of the tow band TB into a cylindrical shape, but since the tow band TB is crimped well by the crimping machine 5, there is a variation in ventilation resistance (PD) and ventilation resistance. Both (PDCv) are suppressed. Therefore, if the cigarette filter is used, a cigarette that is easy to suck can be manufactured with stable quality.
  • PD ventilation resistance
  • a tow band was produced using a plurality of filaments made of cellulose acetate fibers. Of the plurality of filaments contained in the tow band, a predetermined amount of filaments were damaged to such an extent that they were not cut. At this time, samples of a plurality of tow bands were produced by changing the amount of damaged filaments contained in the tow band.
  • FIG. 6 shows the relationship between the mixing rate of damaged filaments contained in the tow band and the amount of filaments generated.
  • the tow band TB is manufactured as in the above embodiment, it is possible to prevent the occurrence of a filament by adding a plasticizer to the plurality of filaments F at a predetermined timing and plasticizing the plurality of filaments F. It is considered to be particularly effective for the purpose of effectively preventing the occurrence of melt holes caused by the filaments and obtaining a high-quality cigarette.
  • the amount of acetone contained in the plurality of filaments when contacting the godet roll was set to be 2 wt% or more and 17 wt% or less. Then, the difference in the amount of filaments generated in the example in which a predetermined amount of water was applied to the filament F immediately before contacting the crimper and the comparative example in which no water was applied was examined.
  • the tow band manufacturing apparatus 1 was used as the tow band manufacturing apparatus of the example.
  • the water application apparatus is such that the amount of water contained in the plurality of filaments is 20 wt% or more and 50 wt% or less. 13 and oiling device 14 were set. Further, based on the measurement result of the measuring instrument 16, the residual amount of volatile components contained in the plurality of filaments when contacting the godet roll 15 is about 17 wt% or more and about 33 wt% or less.
  • the amount of acetone contained in the plurality of filaments at the time of contact was set to be 2% by weight to 17% by weight.
  • the filter rod manufacturing apparatus 20 was continuously operated for 15 minutes to manufacture a filter rod. Each time a filter rod was manufactured, the amount of filamentous material (mg / 15 min) generated during operation of the filter rod manufacturing apparatus 20 was measured.
  • the tow band manufacturing apparatus of the comparative example the one having a configuration in which the hydrogenation apparatus 13 is removed from the tow band manufacturing apparatus 1 was used.
  • the amount of acetone contained in the plurality of filaments when contacting the godet roll 15 was set to be 2 wt% or more and 17 wt% or less.
  • the adjustment of the amount of moisture contained in the plurality of filaments when the plurality of filaments were first crimped by the crimper 5 was not particularly performed. Thereby, a plurality of samples of the tow band of the comparative example were obtained. Each time a filter rod was manufactured using each sample of the tow band of the comparative example, the amount of filamentous material (mg / 15 min) generated during operation of the filter rod manufacturing apparatus 20 was measured in the same manner as in the example.
  • FIG. 7 is a graph showing the relationship between the residual amount of total volatile components contained in the plurality of filaments of the comparative example and the amount of filaments generated during the production of the filter rod.
  • FIG. 8 is a graph showing the relationship between the residual amount of the total volatile components contained in the plurality of filaments of the example and the amount of filaments generated during the production of the filter rod.
  • the vertical axes of the graphs shown in FIGS. 7 and 8 have the same scale.
  • the “average value” shown in FIGS. 7 and 8 indicates the average value of the amount of filamentous material generated in a plurality of samples of Examples or Comparative Examples.
  • the amount of acetone contained in the plurality of filaments when contacting the godet roll is set to 2% by weight or more and 17% by weight or less to form a filamentous shape.
  • the generation amount of the body is suppressed to some extent.
  • the amount of the filamentous body generated is relatively large.
  • the variation in the amount of generation of the filamentous body of the comparative example was larger than the variation of the amount of generation of the filamentous body of the example.
  • the amount of filamentous material generated in each sample of the example is less variable than the amount of filamentous material generated in each sample of the comparative example, and the average value of the amount of filamentous material generated in the example is the same as that of the comparative example. The result of being suppressed from the average value of the amount of filaments generated was obtained.
  • the oil emulsion is attached to a plurality of filaments by the oiling apparatus.
  • a predetermined amount of water is used by using a water impregnation device or the like. It is considered that it is effective to adjust so as to be included in the plurality of filaments. Therefore, as in the embodiment, water is attached to the plurality of filaments so that the amount of water when the plurality of filaments are first crimped by the crimping machine is 20 wt% or more and 50 wt% or less. It is considered that the amount of filamentous material generated can be effectively suppressed by performing the hydrogenation step.
  • the present invention is beneficial when widely applied as a tow band manufacturing method and a tow band manufacturing apparatus capable of exhibiting the significance of this effect.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Artificial Filaments (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
PCT/JP2014/005943 2014-11-27 2014-11-27 トウバンドの製造方法及びトウバンド製造装置 WO2016084115A1 (ja)

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CN201480083695.2A CN107002312B (zh) 2014-11-27 2014-11-27 丝束带的制造方法及丝束带制造装置
PCT/JP2014/005943 WO2016084115A1 (ja) 2014-11-27 2014-11-27 トウバンドの製造方法及びトウバンド製造装置

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CN107002312B (zh) 2019-05-07
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