WO2018133255A1 - Appareil de teinture par transfert - Google Patents

Appareil de teinture par transfert Download PDF

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Publication number
WO2018133255A1
WO2018133255A1 PCT/CN2017/083703 CN2017083703W WO2018133255A1 WO 2018133255 A1 WO2018133255 A1 WO 2018133255A1 CN 2017083703 W CN2017083703 W CN 2017083703W WO 2018133255 A1 WO2018133255 A1 WO 2018133255A1
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WIPO (PCT)
Prior art keywords
dyeing
transfer
roller
transfer roller
swing arm
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PCT/CN2017/083703
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English (en)
Chinese (zh)
Inventor
钟博文
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长胜纺织科技发展(上海)有限公司
钟博文
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Application filed by 长胜纺织科技发展(上海)有限公司, 钟博文 filed Critical 长胜纺织科技发展(上海)有限公司
Publication of WO2018133255A1 publication Critical patent/WO2018133255A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F17/00—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for
    • B41F17/38—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on knitted fabrics

Definitions

  • This invention relates to dyeing equipment in the textile industry, and more particularly to a transfer dyeing apparatus.
  • Each type of dye is further divided into groups according to different dyeing properties and process conditions.
  • the same fiber can often be dyed with several dyes, and the same dye can often be used for dyeing and printing of several different fibers.
  • the dyeing equipment and dyeing process used in dyeing and printing are designed according to the actual situation.
  • a large number of regulations on printing and dyeing environmental protection regulations were introduced, which caused many dyeing factories to face the pressure of research and development.
  • the old dyeing and printing technology is gradually being eliminated.
  • the market and society need printing and dyeing enterprises to save energy, protect the environment, control costs, improve efficiency, improve quality and other topics closely related to society.
  • New science and technology, information technology and new processes are introduced into the production process of textile printing and dyeing.
  • Dyeing is a process in which the dye is physically or chemically combined with the fiber, or a chemical is used to form a pigment on the fiber to impart a certain color to the entire textile. Dyeing is carried out under conditions of temperature, time, pH and the desired dyeing aid. The dyed product should have a uniform color and good dye fastness.
  • the dyeing methods of the existing fabrics are mainly divided into dip dyeing and padding. Dip dyeing is a method of immersing a fabric in a dyeing liquid to gradually dye the dye, which is suitable for dyeing in small batches and varieties. Rope dyeing and dyeing all fall into this category.
  • Dyeing is a dyeing method in which the fabric is first immersed in the dyeing liquid, and then the fabric is passed through a roll to uniformly roll the dyeing liquid into the interior of the fabric, and then subjected to steaming or hot-melting treatment, which is suitable for dyeing large-volume fabrics.
  • the method of dip dyeing and padding is actually an extensive production method, which consumes a large amount of water during the production process, and causes a large amount of dye-containing colored wastewater to be produced after washing.
  • 1 ton of textiles per 100 tons of textiles consumes 100 to 200 tons of water, of which 80 to 90% become wastewater. Is the line One of the major emitters in the industry.
  • Printing and dyeing wastewater generally has the characteristics of high concentration of pollutants, various types, large alkalinity, large changes in water quality, toxic and harmful components and high chroma, and is one of the industrial wastewaters that are difficult to treat.
  • the conventional dyeing method described above has poor uniformity of ink and large chromatic aberration, so that the quality of the produced fabric is poor.
  • the present invention is directed to a transfer dyeing apparatus capable of achieving various dyeing effects of good dyeing uniformity, substantially no color difference, and high quality with low cost, low energy consumption, high efficiency, and low carbon environmental protection.
  • a transfer dyeing apparatus may include: a dyeing unit for registering dyeing the fabric to be dyed; a take-up and unwinding unit for unwinding the dyed fabric and collecting the dyed fabric a dust removing unit for dusting and cleaning the fabric to be dyed; a expanding unit for horizontally unrolling the fabric to be dyed, the expanding unit being controlled by the expanding motor and the expanding roller rotating the fabric level to be dyed Expanding; tensioning unit for controlling the tension state of the fabric during the entire dyeing process from unwinding to winding; sizing and dehumidifying unit for sizing and dehumidifying the fabric prior to dyeing for subsequent coloring; The correcting unit corrects the fabric to be dyed entering the dyeing unit to ensure the lateral precise positioning of the fabric, and the longitudinal tension is suitable; and a drying unit for drying the fabric after dyeing; wherein the dyeing unit comprises a center roller, the center roller being mounted to the frame; and at least one dyeing jacket device, the at least one dyeing jacket device
  • the rubber is natural rubber, styrene butadiene rubber, urethane rubber or other rubber having good affinity for aqueous ink.
  • the transfer roller has a surface rubber Shore hardness of 60 degrees or less, more preferably 55 degrees.
  • the outer diameter of the printing plate ⁇ the outer diameter of the transfer roll ⁇ the outer diameter of the printing plate roll +1 mm.
  • each dyeing jacket device further includes a pressure applying assembly for variably providing a pressure of the transfer roller against the printing plate roller, wherein the pressure applying assembly enables the transfer roller to selectively Moving to the pressing position and the rest position, in the pressing position, the transfer roller presses against the printing plate roll, thereby generating a pressure at which the transfer roller presses against the printing plate roll; in the rest position, the transfer roller does not press against the printing plate roll.
  • a pressure applying assembly for variably providing a pressure of the transfer roller against the printing plate roller, wherein the pressure applying assembly enables the transfer roller to selectively Moving to the pressing position and the rest position, in the pressing position, the transfer roller presses against the printing plate roll, thereby generating a pressure at which the transfer roller presses against the printing plate roll; in the rest position, the transfer roller does not press against the printing plate roll.
  • the pressing assembly comprises a rotatable eccentric bushing, the shaft end of the transfer roller being rotatably mounted in the eccentric bushing, and the distance between the transfer roller and the printing plate roller can be adjusted by rotating the eccentric bushing, The resulting transfer roller is thereby adjusted to resist the pressure of the printing plate roll.
  • the transfer roller can be selectively moved to a plurality of pressing positions by rotating the eccentric bushing.
  • the pressing assembly further includes a connecting rod for driving the rotation of the eccentric bushing and a swing arm for moving the connecting rod, one end of the connecting rod being connected to the eccentric bushing, the connecting rod The other end is coupled to the swing arm, the swing arm being pivotable relative to the body of the dyeing jacket device by a swing arm pivot.
  • the pressing assembly further includes an actuator that drives the swing arm to pivot, the pivoting of the swing arm causing the link to drive the eccentric bushing to rotate, thereby moving the transfer roller to the pressing position or the rest position .
  • one of the pressure applying members is provided on each of the two axial end sides of the transfer roller.
  • one of the pressure-applying assemblies is provided on each of the two axial end sides of the transfer roller, and the swing arm on one axial end side and the swing arm on the other axial end side are pivoted synchronously by the same swing arm pivot.
  • the synchronous movement of the two connecting rods and the eccentric bushing is realized, so that the two shaft ends of the printing plate roller are simultaneously pressurized.
  • only one of the pressing members on the two axial end sides of the transfer roller includes an actuator for driving the swing arm to pivot.
  • the swing arm includes a first arm and a second arm, each arm including a first end and a second end, the first end of the first arm being pivotally coupled to the actuator by a pin a projecting end, the first end of the second arm being pivotally coupled to the other end of the link by a pin, the second ends of the two arms being non-rotatably fixed to the pivot of the swing arm On the end.
  • the center roll is a hard material roll whose surface is covered with rubber and is filled with oil, and the hard material roll heats the oil through an electric heating rod built in the cavity, thereby controlling the center roll temperature.
  • the printing plate roll is an anilox roll, a full-page flexographic printing plate roll, a full-bottom rotary screen printing roll or a full-dish offset printing plate roll.
  • each of the dyeing jacket devices further includes a propulsion device for providing a propulsive force for advancing the transfer roller toward the center roller, the propulsion device being mounted on the frame of the dyeing jacket device.
  • each dyeing jacket device is capable of independently advancing or exiting towards the center roller by means of a respective propulsion device.
  • the propulsion device also provides an independently adjustable pressure that causes the transfer roller to abut the fabric to be dyed on the center roll.
  • each of the dyeing jacket devices further includes a frame in which a mounting block is disposed, the transfer roller and the printing plate roller are rotatably mounted into the mounting block, and the mounting block can be driven by the propulsion device Move towards the center roller within the frame.
  • a slide rail is disposed in the frame, and the mounting block is slidable on the slide rail.
  • the axes of the transfer roller, the printing plate roll, and the center roll are parallel to each other but not coplanar.
  • each dyeing jacket device further includes a pressure lock for locking the pressure between the transfer roller and the printing plate roller.
  • the tension unit comprises a tension controller located downstream of the unwinding process, a tension swing lever device located upstream of the dyeing unit, and a tension swing arm device located downstream of the drying unit.
  • one of the tension swing lever devices is provided upstream and downstream of the sizing and dehumidifying unit.
  • At least one guide roller is provided adjacent the inlet and the outlet of the fabric to be dyed in contact with the central roller, the at least one guide roller guiding the fabric into or out of a pressurized section between the central roller and the dyeing jacket.
  • the transfer dyeing apparatus further comprises a drying box located between the respective dyeing jacket devices.
  • the transfer dyeing apparatus further includes a correcting device positioned before the fabric to be dyed enters the guide roller near the entrance where the center roller contacts the dyeing jacket device.
  • the transfer dyeing apparatus further comprises an in-line center roll cleaning system disposed in the non-pressurized section of the center roll and the dyeing jacket device, comprising a cleaning device, a wiper blade and an oven, the surface of the center roller being cleaned by the cleaning device The surface of the center roll is scraped off by a wiper blade, and then dried in an oven to achieve continuous circulation application.
  • an in-line center roll cleaning system disposed in the non-pressurized section of the center roll and the dyeing jacket device, comprising a cleaning device, a wiper blade and an oven, the surface of the center roller being cleaned by the cleaning device The surface of the center roll is scraped off by a wiper blade, and then dried in an oven to achieve continuous circulation application.
  • the transfer dyeing apparatus further comprises a central control unit for controlling the rotational speed, the fabric tension, the transmission correction, the propulsive force and the pressing pressure.
  • the transfer dyeing device may be a single-sided dyeing device that performs a dyeing operation on one side of the fabric.
  • the dyeing unit of the transfer dyeing apparatus may be at least two, respectively performing a dyeing operation on both sides of the fabric.
  • the transfer dyeing device is provided with only one drying unit, and after one side of each pair of fabrics is dyed, the fabric enters the drying unit for drying.
  • At the circumference of the transfer roller is located at the transfer roller-plate contact point and rotation A leveling roller is disposed in a region between the transfer roller and the center roller contact point, and the fountain roller is in pressure contact with the transfer roller.
  • the surface of the leveling roller is made of rubber, nylon or plastic.
  • the surface Shore hardness can be 90 degrees.
  • the diameter may be from 50 to 100 mm, preferably about 80 mm.
  • the invention also provides a double-sided transfer dyeing device, which comprises, in order of the traveling direction of the fabric, a compacting frame, a dust removing unit, a two-roller active expanding device, a centering device, a tension controller, an active traction device, and an electric device.
  • a halo processor a first tension swing device; a first sizing front expansion device; a first sizing device and a first dehumidification device for sizing and dehumidifying the fabric prior to dyeing the first side of the fabric; a tension swinging device; a first correcting unit; a first dyeing unit for performing a dyeing operation on the first side of the fabric; a drying unit; a second sizing pre-expansion device; a second sizing device and a second dehumidifying device, And sizing and dehumidifying the fabric before dyeing the second side opposite to the first side of the fabric; a third tension swing device; a second correcting unit; and a second dyeing unit for the second of the fabric Performing a dyeing operation; a tension swing arm device; and a cloth drop traction device, wherein at least one of the first and second dyeing units comprises: a center roller, the center roller being mounted to the frame; One less dyeing jacket device, the at least one dyeing
  • the fabric enters the drying unit again to be dried after being dyed by the second dyeing unit.
  • the invention adopts a transfer dyeing device for transfer dyeing, instead of the traditional dip dyeing or tie dyeing method, so that only the surface of the fabric is dyed, and the inside of the fabric and the non-visible portion are not required to be filled with the dye, thereby greatly saving the amount of the dye and Water consumption; on-demand dyeing, proper dyeing, and high fixation rate, so the water consumption is less, the waste water is less; the pre-treatment liquid treatment and dyeing and fixing mode, the non-traditional dyeing
  • the dyeing mode of the dye and the dye is ensured to ensure the storage stability of the dye ink; the invention can be dyed on one side, dyed on both sides, can be dyed in a single color, or can be dyed on both sides, in line with the market. The need for differentiating dyed fabrics.
  • Figure 1 is a schematic overall view of a transfer dyeing apparatus in accordance with a first embodiment of the present invention.
  • Figure 2 is a schematic illustration of a dyeing unit of a transfer dyeing apparatus in accordance with a first embodiment of the present invention.
  • Figure 3 is a schematic illustration of a single dyeing jacket assembly of a dyeing unit in accordance with this embodiment of the present invention.
  • FIG. 4 is a cross-sectional view of a single dyeing jacket device of the dyeing unit in accordance with the axial direction of the actuator, the swing arm, the connecting rod, the eccentric bushing, and the like, in accordance with the embodiment of the present invention.
  • Figure 5 is a general schematic view of a transfer dyeing apparatus which can perform double-sided dyeing in accordance with a second embodiment of the present invention.
  • Figure 6 is a schematic illustration of the force and positional relationship of a single dyeing jacket and center roll in accordance with the present invention.
  • FIG. 1 shows a transfer dyeing apparatus 1 according to a first embodiment of the present invention.
  • the transfer dyeing apparatus 1 mainly comprises the following parts: a dyeing unit 100, an automatic overprinting unit (not shown), a take-up and take-up unit, a dust removing unit 300, a expanding unit, a tension unit, a sizing and dehumidifying unit, a correcting unit, and a high definition
  • the image detecting unit 900 and the drying unit 1000 The arrangement order of the various parts can be as shown in FIG.
  • the operator sends instructions to the central control unit through the human-machine interaction unit to uniformly manage and control each unit, thereby implementing automatic control.
  • the dyeing unit 100 is the core of the overall dyeing apparatus and comprises primarily at least one dyeing jacket device 5 and a central roller 1, as will be described in more detail below.
  • Each dyeing set device includes a full-plate printing plate roll.
  • the full bottom printing plate roll may be an anilox roll (full bottom gravure printing roll), a full bottom flexographic printing plate roll, a full bottom plate rotary printing plate roll or a full bottom offset printing plate roll.
  • the center roller and each dyeing device are independently driven by an AC servo motor, and the motion controller in the central control unit is connected to each AC servo motor through a high-speed field bus. Achieve high-precision synchronous control of the center roll and each dyeing set.
  • the dyeing unit adopts AC servo motor and motion controller, which can realize pre-registration function and greatly reduce material waste.
  • the dyeing unit 100 includes at least one dyeing jacket device.
  • the automatic overprinting unit is used to achieve automatic control of overprinting.
  • the automatic overprint unit includes a color scale sensor and an overprint controller.
  • the color-coded sensor detects the overprinting error of the dyed fabric in real time and sends the signal to the overprint controller.
  • the overprint controller processes the error signal and sends it to the servo motor of the dyeing unit to compensate, thereby realizing overprinting automatic control.
  • the take-up and unwind unit is used to wind and unwind the fabric.
  • the take-up and take-up unit includes a grip frame 201 and a drape pulling device 202.
  • the winding and unwinding control is completed according to the speed signal and control signal given by the central control unit.
  • the winding tension and unwinding tension are controlled by the rewinding and unwinding unit itself, and the tension can be freely set.
  • the dust removing unit 300 is located downstream of the compact frame 201.
  • the dust removing unit 300 is a brush dust collecting device, which drives the dust removing brush roller to brush off the dust on the material, and the dust removing fan sucks the dust through the pipeline.
  • the expansion unit is used to unfold the fabric to be dyed horizontally.
  • the expansion unit includes a two-roll active expansion device 401 and a sizing pre-expansion device 402. Both of them are controlled by a wide-angle motor to rotate the widening roller to unfold the fabric to be dyed horizontally.
  • the speed of the spreader roll can be set depending on the degree of wrinkling of the material.
  • the tension unit can control the tension state of the fabric throughout the dyeing process, and the tension from the cloth to the cloth is effectively controlled in the dyeing apparatus.
  • the tensioning unit includes a tension controller 603 between the centering device 601 and the active traction device 602, tension swing lever devices 604 and 604' located downstream of the active traction device 602, and a drying unit.
  • the tension pendulum device is provided with two, the first tension pendulum device 604 is located upstream of the sizing and dehumidifying unit, and the second tension pendulum device 604' is located downstream of the sizing and dehumidifying unit.
  • the transfer dyeing apparatus divides the tension control into the following sections: centering (after feeding) tension control, tension control before sizing, Transfer tension control before dyeing and oven (out draw) tension control.
  • the tension of each segment is detected by the tension sensor and the tension is controlled by the inverter.
  • the tension of each segment can be freely set to meet the needs of different materials.
  • the sizing and dehumidifying unit is used to surface pretreat the fabric for subsequent coloring, which mainly includes sizing and dehumidification.
  • the sizing and dehumidifying unit includes a sizing device 701 and a dehumidifying device 702 located downstream of the sizing device 701.
  • the correcting unit 800 is located before the guide roller 4 (see Fig. 2) near the entrance where the center roll 1 is in contact with the dyeing jacket device 5, and is used to ensure the lateral positioning of the fabric 2 with a suitable longitudinal tension.
  • the correcting unit comprises a correcting sensor 801 and a correcting device 802.
  • the correcting sensor 801 detects the position of the edge of the fabric to be dyed in real time and sends a signal to the correcting controller of the central control unit, and the correcting controller sends a control signal to cause the correcting device 802 to operate, thereby ensuring that the fabric to be dyed is always kept in the same walk. Material location.
  • the high definition image detecting unit 900 can employ a high speed camera.
  • the high-speed camera sends the dyed pattern to the central control unit for processing, and then displays the image signal through the liquid crystal display, providing the operator with real-time monitoring of the print quality and improving the yield.
  • the drying unit 1000 is used to effect drying of the dyed fabric.
  • the drying unit 1000 is mainly composed of a temperature control system and a fan, and realizes synchronous control according to a synchronization signal and a control signal given by the central control unit.
  • the drying temperature and air volume can be set freely.
  • the transfer dyeing apparatus may further include a corona processor 1100, which is used for modifying the surface of the fabric to be dyed before the sizing treatment process, in particular, can effectively improve the wetting of the surface of the fabric, Bonding and other properties, easy to sizing and subsequent processes.
  • a corona processor 1100 which is used for modifying the surface of the fabric to be dyed before the sizing treatment process, in particular, can effectively improve the wetting of the surface of the fabric, Bonding and other properties, easy to sizing and subsequent processes.
  • the dyeing unit 100 mainly includes a center roll 1 and at least one dyeing jacket device 5.
  • the dyeing unit employs a satellite structure, and the at least one dyeing jacket device shares a center roller as a back pressure roller.
  • the center roll 1 is fixedly attached to the frame 12 by bearings.
  • the center roller 1 can be driven to rotate by the inverter motor 13.
  • the center roll 1 may be a hard material roll coated with rubber.
  • the surface rubber has a Shore hardness of 85 to 90 degrees, preferably 90 degrees.
  • the outer diameter of the center roll 1 may be 1600-2000 mm, preferably 1800 mm.
  • the center roll can be filled with oil by a cavity, and the oil is heated by an electric heating rod built in the cavity, so that the temperature of the center roll 1 can be raised to 30-150 °C.
  • those skilled in the art can control the center roller by using other heating methods according to actual needs. temperature.
  • the central roller can be heated and heated to stably transfer the dyeing temperature, avoiding a large temperature difference due to seasonal changes or day and night changes, resulting in unstable product quality between batches; and for some high-density and high-density fabrics, the heat to be further expanded by heating Fabric fibers, thereby increasing the dye uptake rate and dyeing speed.
  • At least one (for example, 2-8, 6 shown in Fig. 1) dyeing jacket means 5 is distributed around the circumference of the center roll 1.
  • Each dyeing jacket device 5 independently provides its propulsion force toward the center roller 1 by a respective propulsion device, such as a propulsion cylinder 506.
  • the push cylinder 506 is mounted on the body of each dyeing jacket device 5, for example, on the frame 501 of the body.
  • the transfer dyeing apparatus may further comprise a guide roller 4. More preferably, at least two guide rolls 4 are provided. At least one guide roller is disposed in the vicinity of the inlet and the outlet in contact with the center roll of the fabric to be dyed.
  • the guide roller 4 guides the fabric 2 into or out of a pressurized section between the center roll 1 and the dyeing jacket device 5.
  • each of the guide rolls 4 may be a hard material roll.
  • Each guide roller may have an outer diameter of 100-150 mm.
  • a drying box 7 may be disposed between each of the dyeing jacket devices 5 for ensuring drying of the ink after printing and preventing coloring of the color between the multiple registrations.
  • five drying boxes 7 are provided which are alternately distributed with the six dyeing jacket devices 5 on the periphery of the circumference of the center roller 1.
  • the transfer dyeing apparatus may further comprise an in-line center roll cleaning system 15 disposed in the non-pressurized section of the center roll 1 and the dyeing jacket apparatus 5.
  • the online center roller cleaning system 15 includes a cleaning device, a wiper blade and an oven. After the surface of the center roller 1 is cleaned by the cleaning device, the surface moisture of the center roller 1 is scraped off by a wiper blade, and then dried in an oven to realize continuous cycle application.
  • the cleaning device can include a showerhead and a brush.
  • Figures 3 and 4 show a dyeing set device 5 of a transfer dyeing apparatus in accordance with this embodiment of the invention.
  • the dyeing jacket device 5 can include the above-described propulsion device (e.g., propulsion cylinder 506), ink fountain assembly 510, anilox roller 511, transfer roller 512 ink roller 518, and a pressure applying assembly.
  • the ink fountain assembly 510, the anilox roller 511, the transfer roller 512, and the pressing assembly are mounted in the frame 501.
  • the transfer roller 512 is located between the anilox roller 511 and the center roller 1, and is in contact with the anilox roller 511.
  • the respective axial ends of the transfer roller 512 and the anilox roller 511 can be mounted into a mounting block 502 in the frame 501.
  • the mounting block 502 is slidable on a slide rail provided in the frame 501 such that under the advancement of the push cylinder 506, the mounting block 502 is moved toward the center roller 1 such that the transfer roller 512 reaches the center roller 1
  • the push cylinder 506 can also provide a pressure that causes the transfer roller 512 to abut against the fabric to be dyed on the center roll 1.
  • the pressure provided by each of the push cylinders 506 to urge the transfer roller 512 against the fabric to be dyed on the center roll 1 can be independently adjustable. The pressure is adjusted by the control system, and can be stepped up according to the program or gradually decreased according to the program.
  • the entire dyeing jacket device 5 is pushed by the propulsion cylinder 506 along the linear slide rail to achieve clutching with the center roller, and the clutch stroke can be 2-5 cm.
  • the outer diameter of the anilox roll 511 can be selected for use, and is usually 95-200 mm in outer diameter.
  • the anilox roller 511 is associated with an ink fountain assembly 510.
  • the ink supply system delivers ink into the ink chamber formed between the ink fountain assembly 510 and the anilox roller 511.
  • the anilox roller 511 can be driven by a servo motor and synchronized with the anilox roller 511 of the other dyeing jacket device 5 to ensure registration accuracy.
  • the leveling roller 518 is in light pressure contact with the transfer roller 512, and the contact point of the two is located at the circumference of the transfer roller along the rotation direction of the transfer roller between the transfer roller-plate roller contact point and the transfer roller-center roller contact point. Inside.
  • the effect of the leveling roller 518 is that since the transfer dyeing apparatus according to the present invention uses a transfer dyeing method instead of a dip dyeing or padding method, and uses a full-plate printing plate roll that carries a dyed pattern of the bottom plate, the dye is used. It is distributed in dots, and after the ink is transferred from the plate roller to the transfer roller, the ink-dispensing roller can blur the dots distributed in dots, thereby making the spreading of the ink more uniform.
  • the leveling roller can function like a toner in offset printing.
  • the surface of the ink roller 518 may be made of rubber, nylon or plastic.
  • the surface may have a Shore hardness of 90 degrees and a diameter of 50 to 100 mm, preferably about 80 mm.
  • the transfer roller 512 may be a hard material roll coated with rubber.
  • the surface can be covered with a seamless rubber.
  • the rubber is natural rubber, styrene butadiene rubber, urethane rubber or other rubber having good affinity for aqueous ink.
  • the transfer roller 512 has a surface rubber Shore hardness of 60 degrees or less, more preferably 55 degrees.
  • the effect of the transfer roll having a softer surface is that when the ink dot on the printing plate roll such as the anilox roll 511 comes into contact with the softer rubber surface of the transfer roll, the ink dots on the printing plate roll can be pressed under pressure. Spreading even more is also conducive to the uniformity of the ink.
  • each dyeing sleeve device transfer roller 512 is a rubber-coated hard material roller, the outer diameter of the transfer roller 512 is slightly larger than the anilox roller 511, thus providing a certain tolerance space while ensuring the integrity of the transfer dyeing pattern. .
  • the rubber transfer roller is in contact with the anilox roller, the rubber of the rubber transfer roller is deformed by a certain pressure under the action of the propelling device and the pressing force of the pressing member; when the anilox roller When the current surface is turned away from the rubber surface of the rubber transfer roller, the rubber surface can be quickly restored to its original state.
  • the dyeing device according to the invention has strong pressure bearing capability and high precision, and can fully carry the dyeing pattern, thereby ensuring the fineness of the dyeing pattern after transfer; in addition, the compression deformation of the rubber is small, so that it can withstand thousands of compressions per hour. , there will be no compression fatigue during the production cycle and permanent deformation.
  • the pressure applying assembly can be used to provide an adjustable pressure of the transfer roller 512 against the anilox roller 511.
  • the pressing component is used to adjust the amount of ink to control the chromatic aberration, and the pressure is mainly used to stick the amount of ink in the anilox roll cell.
  • the pressure applying assembly includes an actuator 509 and an eccentric bushing 503.
  • the actuator 509 includes a cylinder block and a piston rod.
  • the cylinder is pivotally coupled to the mounting block 502.
  • the actuator 509 can be of a hydraulic type, a pneumatic type, or an electric type. Where the actuator 509 is of the hydraulic or pneumatic type, the length of the piston rod extension can be adjusted by adjusting the fluid pressure within the chamber of the cylinder.
  • the actuator 509 can be a servo actuator, such as a servo electric cylinder.
  • the pressure applying assembly can also include a swing arm 508 and a link 516.
  • the swing arm 508 is pivotally coupled to the mounting block 502 by a swing arm pivot 504.
  • the swing arm 508 includes a first end and a second end.
  • the first end of the swing arm 508 is pivotally coupled to the extended end of the piston rod of the actuator 509 by a pin.
  • the second end of the swing arm 508 is pivotally coupled to one end of the link 516 by a pin.
  • the other end of the link 516 is pivotally coupled to the eccentric bushing 503.
  • a handle may be provided at the end of the swing arm pivot to manually adjust the rotation of the eccentric bushing 503 by the operator during the commissioning phase.
  • the swing arm 508 can include a first arm 5081 and a second arm 5082.
  • Each arm includes a first end and a second end.
  • the first end may be a small end and the second end may be a big end.
  • the first end of the first arm 5081 is pivotally coupled to the extended end of the piston rod of the actuator 509 by a pin.
  • the first end of the second arm 5082 is pivotally coupled to one end of the link 516 by a pin. Both the first arm 5081 and the second end of the second arm 5082 are non-pivotablely coupled to the swing arm pivot 504.
  • the second end may be provided with a pivot hole, and the swing arm pivot is fixed to the pivot hole of the second end by a keyway engagement, a positioning pin and a pin hole connection, or an interference fit.
  • the swing arm pivot 504 is pivotally mounted to the mounting block 502.
  • the swing arm pivot 504 extends axially outward from the mounting block 502 to form an extension.
  • the extension can be used to connect the second ends of the first arm 5081 and the second arm 5082.
  • the other end of the link 516 is pivotally coupled to the eccentric bushing 503 by a pin.
  • the eccentric bushing 503 is sleeve-like as a whole, but the central axis of the outer cylindrical surface is not collinear with the central axis of the inner cylindrical surface, that is, the two are offset by a certain distance.
  • the eccentric bushing 503 is rotatably mounted in a sleeve hole of the mounting block 502.
  • the outer diameter of the eccentric bushing 503 is slightly smaller than the inner diameter of the sleeve bore.
  • the eccentric bushing is rotatable relative to the mounting block 502 in the sleeve bore about a central axis of the outer cylindrical surface of the eccentric bushing.
  • the eccentric bushing 503 also has a portion of the axially extending mounting block 502 for connecting the other end of the link 516.
  • an eccentric bushing can be disposed through a portion extending in the axial direction
  • the flange and the opposite stop block mounted at the other end of the eccentric bushing are rotatably fitted to the mounting block to prevent axial movement thereof in the sleeve hole to maintain the stability of its rotation.
  • One shaft end of the transfer roller 512 is rotatably mounted in the eccentric bushing 503 through a bearing.
  • the central axis of the transfer roller 512 is collinear with the central axis of the inner cylindrical surface of the eccentric bushing 503. Since the central axis of the outer cylindrical surface of the eccentric bushing 503 is not collinear with the central axis of the inner cylindrical surface, thereby causing the central axis of the inner cylindrical surface of the eccentric bushing when the eccentric bushing is rotated in the bushing hole
  • the position changes accordingly, so that the position of the axial end of the transfer roller 512 in the eccentric bushing 503 is correspondingly changed, and the position of the central axis of the transfer roller 512 is changed, resulting in the transfer roller 512 and the anilox roller.
  • the distance between 511 changes, causing the pressure between the two to also change.
  • the eccentric bushing is rotated to move the transfer roller 512 to a pressing position, the distance between the transfer roller 512 and the anilox roller 511 is reduced, and the two are pressed together, thereby causing the transfer roller 512 to resist the texture.
  • the eccentric sleeve rotates to move the transfer roller 512 to the rest position, the distance between the transfer roller 512 and the anilox roller 511 increases, and the two are separated from the pressure (with or without contact), and the transfer roller 512 does not Anilox roller 511 provides pressure.
  • the transfer roller 512 can be moved to different pressing positions by rotating the eccentric bushing by the pressing member as needed.
  • the distance between the transfer roller 512 and the anilox roller 511 can be adjusted due to the above-described eccentric configuration of the eccentric bushing, thereby adjusting the resulting transfer roller 512.
  • the pressure of the anilox roller 511 is pressed.
  • the deformation of the transfer roller 512 can be finely controlled by adjusting the pressure generated, so that for the registration of the dyeing, the pressure can be further adjusted by adjusting the pressing pressure. Quasi-precision.
  • the other axial end side of the transfer roller 512 is provided with the same other pressure applying member.
  • the actuator on the other axial end side of the transfer roller 512 may be omitted, and only the swing arm, the link, and the eccentric bushing are provided, that is, the two pressing members share one actuator 509.
  • the two swing arms on the two axial end sides of the transfer roller 512 are non-rotatably fixed to the swing arm pivot 504, whereby the two swing arms are synchronously pivoted by means of the swing arm pivot 504, thereby realizing two connecting rods and an eccentric shaft Synchronous movement of the set.
  • the eccentric bushing can be set to initially rest in the rest position.
  • the actuator 509 is actuated to extend the piston rod, and the swing arm 508 is pivoted about the central axis of the swing arm pivot 504 to drive the link 516 connected to the swing arm 508 to move.
  • the movement of 516 in turn drives the eccentric bushing to rotate, the eccentric bushing 503 rotates to move the transfer roller 512 to a pressing position (refer to FIG. 2), and the distance between the transfer roller 512 and the anilox roller 511 decreases.
  • the pressure is applied, thereby providing the pressure of the transfer roller 512 against the anilox roller 511.
  • the actuator 509 is actuated to retract the piston rod, and the swing arm 508 is pivoted about the central axis of the swing arm pivot 504 to drive the link 516 connected to the swing arm 504 to move, and the movement of the link 516 is driven.
  • the eccentric bushing 503 rotates, the eccentric bushing 503 rotates to move the transfer roller 512 to the rest position, and the distance between the transfer roller 512 and the anilox roller 511 increases, and the two are separated from the pressing force, whereby the transfer roller 512 is no longer oriented.
  • the anilox roller 511 applies pressure.
  • the stroke of the piston rod of the actuator 509 can be set to 80-200 mm, preferably 100 mm.
  • the center roller 1, the transfer roller 512 and the axis of the anilox roller 511 are parallel.
  • the axes of the three may not be coplanar.
  • the axes of the three are not collinear.
  • the axial connection of the three forms an included angle ranging from 130 to 170 degrees, which is preferably 146 degrees or 147 degrees.
  • the swing arm pivot 504 is disposed substantially on the side of the anilox roller 511 opposite the transfer roller side. That is, the axes of the anilox roller 511, the transfer roller 512, and the swing arm pivot 504 are arranged in a triangular shape.
  • the advantage of such an arrangement is that the size of the dyeing jacket device in the direction perpendicular to the axis of the center roller 1 can be reduced, so that the frame and the mounting block are compact in structure; in addition, the parts are easily maintained and replaced.
  • the direction in which the transfer roller 512 presses the pressing force F1 of the center roller 1 is parallel to the longitudinal direction of the slide rail. That is parallel to the longitudinal centerline of the dyeing set.
  • the pushing force F1 can be decomposed into two components, vertical and tangential.
  • the vertical component refers to the actual dyeing pressure F2 perpendicular to the outer peripheral surface of the center roll, that is, toward the center of the center roll, which is expressed by the amount of rubber deformation of the rubber roll.
  • the tangential component is a tangential component force F3 that is tangential to the outer circumferential surface of the center roll.
  • the tangential component force F3 has a certain influence on the tangential deformation of the rubber roller cladding layer, but has little effect on the deformation of the dyeing pattern.
  • the required dyeing pressure F2 should remain the same, so in the case where the angle ⁇ between the center line of the transfer roll and the center roll and the horizontal line is determined, the pressing force F1 and the tangential direction
  • the size of the component F3 is related to the angle ⁇ between the longitudinal centerline and the horizontal line of the dyeing device. The smaller the angle ⁇ , the larger the pressing force F1 and the tangential component F3; otherwise, the angle ⁇ The larger the pressing force F1 and the tangential component F3, the smaller.
  • the angle ⁇ between the longitudinal centerline and the horizontal line of the dyeing jacket device may be 0-90 degrees, preferably 15 degrees.
  • the angle between the anilox roll-transfer roll center line and the longitudinal centerline of the dyeing set can be from 4 to 35 degrees, preferably 23 degrees.
  • the dyeing jacket device may further include a pressure locker 517 for locking the pressure between the transfer roller 512 and the anilox roller 511, thereby avoiding a slight pressure value due to unevenness of the surface of the fabric 2 during production. beat.
  • the pressure locker can include a variable length member having one end pivotally coupled to the bias
  • the mandrel sleeve 503 has the other end pivotally secured to the mounting block 502. The length of the component changes as the eccentric bushing 503 rotates.
  • the operator can lock the pressure locker 517 by any suitable means, thereby making the variable length member The length is constant, thereby keeping the pressure of the transfer roller 512 against the anilox roller 511 constant.
  • the number and/or diameter of each of the printing plate rolls may vary.
  • the homogenization of the fabric inking is achieved by the multi-plate roll number setting.
  • the mesh gradient of the full-plate gravure can be set to 60, 90, 150, 300.
  • a low-numbered plate roll is used first to achieve a large amount of ink, and the subsequent high-mesh plate roll increases the dyeing depth on the one hand and makes the coloring more uniform on the other hand.
  • the different diameters of the printing plate rollers are also advantageous for the uniformity of the inking.
  • the ink is distributed on the fabric in the state of the ink dots. If there is flaw in a certain part of the roller, the ink point of the transfer dye will be problematic. If the diameter of the plate roller is the same, the position of the ink dot will be the same, the ink dot will be repeated, and the plate roller of different diameter will be inked. The position of the dots is different, so that the defects of such ink dots can be masked to some extent, thereby ensuring the stability of the production quality.
  • the upper and lower doctor blades of the ink fountain assembly 510 are in surface contact with the contact of the printing plate roll during transfer dyeing to achieve uniformity of the ink application.
  • the surface contact can be achieved by adjusting the blade angle so that the front edge of the blade is parallel to the tangent of the plate roll.
  • the width of the contact surface is 1-2 mm.
  • the fabric 2 to be dyed is unwound from the raw material basket through the tight frame 201 under the traction of the active traction device 602, and enters the dust removing unit 300 to brush off the dust on the fabric; the dust-removed fabric is then subjected to a double-roll active expansion device.
  • the pre-slurry tension control, the pre-slurry pre-expansion device 402 expands again, and then enters the sizing device 701 for sizing, and enters the dehumidifying device 702 for dehumidification; after the dehumidified fabric is subjected to the second tension swing device 604' for transfer and dyeing before tension control, It is accurately positioned laterally by the correcting device 802.
  • the inverter motor 14 drives the center roller 1 to rotate, and the fabric 2 is guided between the center roller 1 and each of the dyeing jacket devices 5 by the guide roller 4.
  • the push cylinder 506 applies a propulsive force, causing the mounting block in the dyeing jacket device 5 to move toward the center roller 1, so that the transfer roller 512 abuts the fabric 2 on the center roller 1.
  • the upper and lower blades of the ink fountain assembly 510 move toward and abut against the anilox roller 511, during which an ink chamber is formed, and the ink in the ink chamber is printed on the transfer roller 512 by the anilox roller 511.
  • Turn The transfer roller 512 then transfers the dye pattern to the fabric 2.
  • the drying box 7 located between the respective dyeing set devices 5 can be opened to ensure that the ink is dried after printing, preventing coloring and coloring between the multiple registrations.
  • each dyeing portion device 5 After the printing of each dyeing portion device 5 is completed, the color is dyed, and finally, it is taken out by another guide roller 4, and enters the drying unit 1000 for drying.
  • the dried fabric enters the tension swing arm device 605 for oven (extraction) tension control, and is then pulled by the falling traction device 202 into the finished cloth basket.
  • the high-definition image detecting unit 900 takes the dyed fabric pattern in real time and sends it to the central control unit for processing, and then displays the image signal through the liquid crystal display to provide the operator with monitoring the quality of the printed matter and improving the yield.
  • the center roll cleaning system 15 can be used to clean and dry the surface of the center roll 1 for recycling.
  • the pressure of the anilox roller 511 is supplied by the pressure applying member to the pressing roller 511, thereby ensuring a good dyeing effect.
  • the deformation of the transfer roller 512 can be finely controlled as needed and different fabrics, so that the registration accuracy can be further improved by adjusting the pressing pressure.
  • the transfer dyeing apparatus achieves good effects in production and application of the transfer dyeing product, productivity and product quality, in particular, uniformity of ink application, and substantially no color difference.
  • Each of the dyeing jacket devices can be independently pressure contacted or disengaged from the center roller by means of respective propulsion devices so that the other dyeing jacket devices continue to transfer dyeing and can independently adjust the pressure against the center roller.
  • the transfer roller is used as the transfer temporary carrier, and the consumption of paper-free consumables not only reduces the running cost, but also is environmentally friendly, economical and practical.
  • the transfer dyeing apparatus of the present invention can realize high-speed transfer dyeing production with a dyeing speed of up to 30-60 m/min.
  • Figure 5 shows a transfer dyeing device 2 capable of double-sided dyeing in accordance with a second embodiment of the present invention.
  • the fabric passes through the following parts of the transfer dyeing device in sequence: a compacting frame 201; a dust removing unit 300; a two-roller active expanding device 401; a centering device 601; a tension controller 603; an active traction device 602; a processor 1100; a first tension swing device 604; a first sizing pre-expansion device 402; a first sizing device 701 and a second dehumidifying device 702 for sizing the fabric prior to dyeing the first side of the fabric Dehumidification; a second tension swing device 604'; a first correcting unit 800; a first dyeing unit 100 for performing a dyeing operation on the first side of the fabric; a drying unit 1000; a second sizing pre-expansion device 402'; a second sizing device 701' and a second dehumidifying device 702' for woven fabric prior to dyeing the second side of the fabric opposite the first side Performing sizing and dehum
  • the fabric 2 to be dyed is unwound from the stock basket through the grip frame 201 under the traction of the active traction device 602 as described in the first embodiment, and enters the dust removing unit 300 to fabric
  • the dust on the brush is brushed off; the dust-removed fabric is then expanded by the double-roller active expanding device 401, centered by the centering device 601, centered by the tension controller 603 (after feeding) tension control, corona processor 1100 is subjected to corona treatment on the surface of the fabric, subjected to tension control before sizing by the first tension swing device 604, expanded again by the first sizing pre-expansion device 402, and then sizing into the first sizing device 701 and entering the first dehumidification device.
  • the 702 is dehumidified; after the dehumidified fabric is subjected to transfer tension control by the second tension pendulum device 604', it is laterally accurately positioned by the first correcting unit 800, and then the fabric enters the first dyeing unit 100.
  • the inverter motor 14 drives the center roller 1 to rotate, and the fabric 2 is guided by the guide roller 4 to enter between the center roller 1 and each of the dyeing jacket devices 5.
  • the push cylinder 506 applies a propulsive force, causing the mounting block in the dyeing jacket device 5 to move toward the center roller 1, so that the transfer roller 512 abuts the fabric 2 on the center roller 1.
  • the upper and lower doctor blades of the ink fountain assembly 510 move toward and abut against the anilox roller 511, and an ink chamber is formed therebetween, and the ink in the ink chamber is printed on the transfer roller 512 by the anilox roller 511.
  • Transfer roller 512 then transfers the full bottom dye pattern to fabric 2.
  • the drying box 7 located between the respective dyeing set devices 5 can be opened to ensure that the ink is dried after printing, preventing coloring and coloring between the multiple registrations. After the printing of each dyeing portion device 5 is completed, the registration is dyed, and finally, it is taken out by another guide roller 4, and enters the drying unit 1000 for drying.
  • the opposite second side of the fabric is then subjected to a dyeing treatment.
  • the fabric is expanded again by the second sizing pre-expansion device 402', then sizing into the second sizing device 701', and dehumidifying into the second dehumidifying device 702'; the dehumidified fabric is transferred to the dyeing device via the third tension pendulum device 604" After the tension control, it is accurately positioned laterally via the second correcting unit 800'.
  • the fabric then enters a second dyeing unit 100' for dyeing the second side and is dyed at the second dyeing unit 100'.
  • the structure of the second dyeing unit 100' is similar to that of the dyeing unit 100.
  • the number of dyeing jacket devices of the second dyeing unit 100' can be selected as needed, for example, as shown in Fig. 5, four dyeing jacket devices.
  • the drying unit 1000 is used for drying. Double-sided dyeing can share one drying unit 1000.
  • the dried fabric enters the tension swing arm device 605, performs an oven (extraction) tension control, and is then pulled by the falling traction device 202 into the finished cloth basket.
  • the dyeing unit 100 that dyes the first side and the dyeing unit 100' that dyes the opposite second side may be of different colors, so that double-sided heterochromatic dyeing can be achieved. This is not possible with traditional dyeing processes.
  • the pressing assembly provided in the two dyeing units can adjustably provide the pressure of the transfer roller against the anilox roller, thereby being able to adapt to different fabric properties and fabric thickness, and effectively control the dyeing effect.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Coloring (AREA)

Abstract

La présente invention concerne un appareil de teinture par transfert, comprenant une unité de teinture (100), une unité d'enroulement et de déroulement, une unité d'élimination de poussière (300), une unité de dilatation, une unité de tension utilisée pour commander l'état de tension d'un tissu pendant l'ensemble du processus de teinture du déroulement à l'enroulement, une unité d'encollage et de déshumidification, une unité de correction de déviation et une unité de séchage (1000). L'unité de teinture comprend un rouleau central (1), le rouleau central étant monté sur un support (12), et au moins un dispositif d'assemblage de composants de teinture (5), les dispositifs d'assemblage de composants de teinture étant répartis autour de la périphérie circonférentielle du rouleau central, le tissu (2) à teindre entrant entre le rouleau central et divers dispositifs d'assemblage de composants de teinture (5) à teindre, chacun des dispositifs d'assemblage de composants de teinture comprenant un rouleau toucheur d'impression maître complet (511) et un rouleau de transfert (512), et le rouleau de transfert étant situé entre le rouleau toucheur d'impression et le rouleau central. L'invention concerne en outre un appareil de teinture par transfert à double face.
PCT/CN2017/083703 2017-01-23 2017-05-10 Appareil de teinture par transfert WO2018133255A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201710048416.4A CN108340667B (zh) 2017-01-23 2017-01-23 转移染色设备
CN201710048416.4 2017-01-23

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WO2018133255A1 true WO2018133255A1 (fr) 2018-07-26

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CN109266792B (zh) * 2018-09-17 2020-10-09 嘉善龙翔人造毛绒有限公司 一种毛皮的一体化加工装置

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