CN113059924A - Digital dyeing apparatus of fabrics - Google Patents

Digital dyeing apparatus of fabrics Download PDF

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Publication number
CN113059924A
CN113059924A CN202110468143.5A CN202110468143A CN113059924A CN 113059924 A CN113059924 A CN 113059924A CN 202110468143 A CN202110468143 A CN 202110468143A CN 113059924 A CN113059924 A CN 113059924A
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China
Prior art keywords
roller
padder
fabric
contamination
compression roller
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CN202110468143.5A
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Chinese (zh)
Inventor
刘静
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Changzhou Runmu Digital Technology Co ltd
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Changzhou Runmu Digital Technology Co ltd
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Priority to CN202110468143.5A priority Critical patent/CN113059924A/en
Publication of CN113059924A publication Critical patent/CN113059924A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
    • B41J3/407—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
    • B41J3/4078—Printing on textile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J11/00—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
    • B41J11/0015—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form for treating before, during or after printing or for uniform coating or laminating the copy material before or after printing
    • B41J11/002—Curing or drying the ink on the copy materials, e.g. by heating or irradiating

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

Abstract

The invention discloses a digital textile dyeing device which comprises a printer, a floatable roller, a padder and a compression roller contamination prevention device, wherein the padder comprises a padder upper compression roller and a padder lower compression roller; after the fabric is printed by the printer, the lining film is used for covering the floating roller, the printing surface of the fabric is in contact with the covered floatable roller, the tension is adjusted, and then the fabric is sent to a position between an upper pressing roller and a lower pressing roller of a padder to be pressurized, and the dye ink is extruded into the fabric. The device not only can realize the digital dyeing of the single full ground color of the textile fabric, but also can realize the effects of tie-dyeing, hang-dyeing, halation-dyeing and spray-dyeing of the textile fabric, has ingenious and simple structure, and is a novel textile dyeing process with low cost, low pollution, suitability for small batches and multiple varieties.

Description

Digital dyeing apparatus of fabrics
Technical Field
The invention belongs to the field of textile printing and dyeing, and particularly relates to a digital textile dyeing device.
Background
Textile printing and dyeing is short for textile dyeing and textile printing, the textile printing and the textile dyeing have different characteristics and requirements, the traditional textile printing is local coloring of the textile surface, the pursuit of the surface color yield is the surface coloring characteristic, and the textile printing have the defects of poor penetration and large difference of the front surface and the back surface. The traditional textile dyeing comprises two process methods of dip dyeing and pad dyeing, can be regarded as that the fabric is soaked and dyed in a dyeing solution, has the characteristics of dark, transparent and thick color, does not have the front and back sides of the dyed fabric, and cannot have the white core phenomenon of poor penetration. However, both dyeing methods have significant disadvantages, both of which are adaptable to mass production and are extremely costly for small-lot orders. In addition, the traditional textile dyeing is one of the main pollution sources of the current industrial pollution and is extremely unfriendly to the environment. Because of this, as textile printing and dyeing projects on horses after disputed in all parts of 80 s in the last century, the textile printing and dyeing projects become street-crossing mice after the environmental protection requirements of the century become higher and higher, and various policies for limiting textile printing and dyeing are developed in all parts. However, textile printing and dyeing has great market demand, is the most important item in the clothes and eating houses necessary for the daily life of common people, and has very important significance in the aspects of improving the life happiness of common people, beautifying the life of common people, improving the employment rate, creating foreign exchange in exports and the like. Therefore, how to develop a new textile dyeing process with low cost and low pollution becomes urgent.
In textile printing, the digital modification of printing technology has been used in recent years, and inkjet printing, i.e. printing by digital technology, is a non-contact printing mode, in which printing dye is prepared into inkjet printing ink, and the inkjet printing ink is sprayed onto printed fabrics according to the depth of a pattern by a computer to control a spray head. The ink-jet printing technology is a high and new technology product which integrates the machine, the computer electronic information technology and the printing and dyeing technology into a whole and is gradually formed along with the continuous development of the computer technology. The appearance and continuous development of the technology bring a brand new concept to the textile printing and dyeing industry, and the popularization and application of the ink-jet printing technology can generate great influence on the future development of the textile industry. In recent years, consumers increasingly demand individuation, and although the total amount of dyed and printed fabrics is larger and larger, the amount of single dyed colors or printed patterns is smaller and smaller, most of the dyed colors or printed patterns are individually customized by one piece or two pieces, and particularly the trend is more and more obvious in the development of network sales, so that the digital modification of textile dyeing is carried out to adapt to the development of the existing textile market, and the novel process for dyeing the textiles with low cost, low pollution and suitability for small batches and multiple varieties is formed.
In addition, the processes of tie-dyeing, hang-dyeing, halation-dyeing, spray-dyeing and the like of the traditional textile fabric are extremely popular in the market due to unique effect and strong decoration, but the processes are all manually finished, for example, the traditional tie-dyeing process is to tie up the fabric by using a rope and put the fabric into a dye vat for dyeing, so that a formed pattern is formed; the hanging dyeing is to cut the fabric into sections, vertically immerse the fabric into a dye solution, and lift one end of the fabric out of the dye solution at a constant speed, so that a uniform over-color effect that the color of the fabric firstly lifted is light and the color of the fabric lifted is dark is formed; the traditional halation dyeing method comprises the steps of hanging a fabric in a hanging mode through hooks, dyeing a plurality of colors into dye water with a plurality of different colors, brushing the dye water with the different colors on the fabric at intervals through a brush by hands, and naturally drying the fabric to form a special dyeing effect; in the traditional spray dyeing, a spray gun is used for manually spraying and painting dye liquor on the fabric to form a pattern; the cost of the processes is very high, the sewage discharge is very much, the repeatability is very poor, and the quality stability is not good; in recent years, the digital printing is used for simulating the traditional process to achieve the effects of tie-dyeing, hang-dyeing, halation dyeing and spray dyeing, although the appearance can be quite similar, the traditional digital printing is only surface-dyeing, the penetration effect and deep-dark expression of the dye can not achieve the effect of the traditional process, if the digital printing can be completely used for achieving the same effect of the traditional process, the quality is good, the cost is low, the stability is good, and the market share of the processes is certainly improved.
Chinese patent 2016214773527 proposes an inkjet printing device for heavy fabrics, but the device has great disadvantages, one is that most of conventional printers in the prior textile are scanning printing, the biggest characteristic of scanning printing is that the stepping of the fabric is intermittent, and the padder rolls the fabric continuously, absolutely cannot pause, and once the fabric pauses, a parking stop with completely inconsistent colors is formed to become a defective product; certainly, the influence of printer pause to the padder can be eliminated because very stiff to how much of drooping volume when the surface fabric hangs down freely to the thick and heavy fabric, and the surface fabric stops advancing when printing promptly, and the padder continuous operation, drooping volume are a little less, and when printing the pause, the surface fabric is followed the printer and is marched step-by-step, and drooping volume is a little more, and whole process is that the cloth is advanced to the pine formula, and the surface fabric does not have tensile between printer and padder, and the thick and heavy fabric can normal operating because stiff and roughness are good. However, most textile fabrics have certain flexibility, and often have the situations of elastic edges, cloth surface wrinkles and the like, and before entering a rolling mill, the fabrics must be tensioned by certain tension to eliminate the elastic edges and the wrinkles, otherwise, the fabrics form crease marks through a padder and become defective products. In addition, various pattern fabrics are formed only when the colors of all parts on the printed fabric are inconsistent, and when a padder presses the wet printed fabric, the surface of a press roller of the padder is stained with the color, and is reversely stained on the surface of the fabric in the continuous pressing process, so that the surface of the printed fabric is seriously stained; in addition, the fabric after being pressed and printed by the padder needs to be continuously pressed at a constant speed, otherwise, the color difference is caused due to the high speed and the low speed of the padder, the larger the speed difference is, the larger the color difference is, and the existing mode is difficult to eliminate the speed difference of the padder.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to provide a digital dyeing device for dyeing textiles, so that the inkjet dyeing of the textiles with low cost, low pollution, small batch and multiple varieties can be realized.
In order to solve the technical problem, the invention provides a digital textile dyeing device which comprises a printer, a floatable roller, a padder and a pressure roller contamination prevention device,
the padder comprises a padder upper press roll and a padder lower press roll;
prevent that compression roller from staining device includes that the compression roller prevents staining the unit and prevents staining the unit with lower compression roller, wherein:
the upper compression roller anti-contamination unit comprises an upper compression roller anti-contamination unwinding device, an upper compression roller anti-contamination winding device and an upper compression roller lining film, the floatable roller and the padder upper compression roller are arranged between the upper compression roller anti-contamination unwinding device and the upper compression roller anti-contamination winding device, the upper compression roller lining film which is wound from the padder upper compression roller lining film unwinding device is firstly coated on the floatable roller, then the upper compression roller lining film is attached to the fabric, and simultaneously the upper compression roller and the padder lower compression roller of the padder are pressed and dye ink is extruded into the fabric, so that the embodiment scheme can reduce lining film waste and reduce production cost, but the fabric is easy to displace when being improperly attached to the lining film, and increases operation difficulty;
or the upper compression roller anti-contamination unit comprises a floatable roller anti-contamination unit and a padder upper compression roller anti-contamination unit, wherein the floatable roller anti-contamination unit comprises a floatable roller anti-contamination unwinding device, a floatable roller anti-contamination winding device and a floatable roller lining film, the floatable roller anti-contamination unwinding device and the floatable roller anti-contamination winding device are respectively arranged at two sides of the floatable roller, and the floatable roller lining film is unwound by the floatable roller anti-contamination unwinding device, covers the floatable roller and is collected by the floatable roller anti-contamination winding device; the anti-contamination unit of the upper compression roller of the padder comprises an anti-contamination unwinding device of the upper compression roller of the padder, an anti-contamination winding device of the upper compression roller of the padder and lining films of the upper compression roller of the padder, wherein the anti-contamination unwinding device of the upper compression roller of the padder and the anti-contamination winding device of the upper compression roller of the padder are respectively arranged at two sides of the upper compression roller of the padder, and the lining films of the upper compression roller of the padder are unwound by the anti-contamination unwinding device of the upper compression roller of the padder and wrap the upper compression roller of the pad; after the fabric is printed by the printer, the printed surface of the fabric is contacted with the coated floatable roller to adjust the tension, and then the fabric is sent to a position between an upper pressing roller and a lower pressing roller of a padder to be pressurized, and the dye ink is extruded into the fabric;
the lower compression roller anti-contamination unit comprises a padder lower compression roller anti-contamination unwinding device, a padder lower compression roller anti-contamination winding device and a padder lower compression roller lining film; or the lower press roll anti-contamination unit is a press roll cleaning device.
Because the ink jet printing is a non-contact printing mode, the dye ink is completely accumulated on one side of the fabric through spray printing of a spray head, the dye ink is extruded into the fabric through a padder to achieve the purpose of permeation, because the padder needs a press roller to contact the front side of the fabric, the press roller contacting the front side can be stained with the dye, the dye can permeate the fabric and reversely stained on the other press roller during squeezing, when the color of the fabric is single full ground color, the dye on the press roller is stained on the front side and the back side of the fabric, the influence on the quality is not obvious, and the dye hanging, the dyeing, the tie dyeing, the dyeing sickness, the spray dyeing and small-batch orders, such as sample production of each order number meter to tens of meters, 1-2 meters of early-stage color mixing production and the like, can cause serious staining and become defective products to lose the use value of the fabric. In order to solve the problem, the invention is provided with the upper compression roller anti-contamination unit and the lower compression roller anti-contamination unit. The invention solves the problems through the upper compression roller anti-contamination unit and the lower compression roller anti-contamination unit. Simply, the floatable roller and the upper press roller of the padder are prevented from staining by using the lining film, the lower press roller can use the lining film or a press roller cleaning device, the selection is freely performed according to the use habits of respective factories, and finally the materials enter the padder for pressing, so that the dyes accumulated on the surface are extruded into the fabric, and the digital dyeing of the textile is completed.
Wherein the printer is a scanning printer or a single-channel printer. The printer is currently provided with a single-channel printer on the market, such as a single pass digital printing machine of Italian MS (Mobile multimedia subsystem), a single pass digital printing machine of a high-tech expected by China, namely a spray head is fixed, fabric is attached to a guide belt and moves along with the guide belt, and the spray head sprays ink on the fabric; the present invention is preferably a scanning printer.
The floatable roller is a guide roller, bearings are respectively arranged at two ends of the guide roller, the bearings are embedded in a vertically arranged chute, and the chute is fixed on the rack; or the bearings are respectively connected with one end of the swing arm, the other end of the swing arm is fixed on the frame through the bearings, and the tension of the fabric is adjusted by using the self weight of the floatable roller or hanging heavy objects at the two ends.
Specifically, when the bearing inlays in the spout of both ends vertically, but the surface fabric printing surface contact floatable roller's roll surface, but floatable roller is because the dead weight, presses the surface fabric flagging, and the tension of surface fabric is positive correlation with floatable roller's dead weight, if the tension that uses floatable roller dead weight to produce can not reach the requirement, can use the method that floatable roller both ends hang the heavy object to adjust the tension of surface fabric, but floatable roller can be driven along the spout and float from top to bottom at the surface fabric. Preferably, a floatable roller position sensor is arranged on the sliding chute, more preferably, a floatable roller position sensor is respectively arranged at the upper end and the lower end of the sliding chute, when the floatable roller descends to be close to the lower end of the sliding chute, the printing speed is higher than the padder speed, the position sensors give signals, the padder automatically accelerates, the floatable roller ascends until the printer speed is consistent with the padder speed, and the floatable roller stops ascending; on the contrary, when the floatable roller goes up and down to be close to the upper end of the sliding chute, the printing speed is lower than the padder speed, the position sensor gives a signal, the padder can automatically decelerate, the floatable roller descends until the printer speed is consistent with the padder speed, and the floatable roller stops descending.
As another embodiment, when two ends of the guide roller are connected with the swing arms through bearings, and the other ends of the swing arms are fixed on the frame through second bearings, the printing surface of the fabric contacts the roller surface of the floatable roller, the floatable roller presses the fabric to droop due to self weight, the tension of the fabric is positively correlated with the self weight of the floatable roller, if the tension generated by the self weight of the floatable roller cannot meet the requirement, the tension of the fabric can be adjusted by using a method of hanging weights at two ends of the floatable roller, and the floatable roller can swing along the swing arms to float up and down under the driving of the fabric. Preferably, an angle sensor is installed at one end of the swinging arm of the floatable roller, which is connected with the rack, more preferably, the angle sensor is installed at the top end of the swinging arm of the floatable roller, which is connected with the rack, when the floatable roller droops too much, the included angle between the swinging arm and the vertical direction becomes small, at the moment, the padder speed is lower than the printer speed, the angle sensor gives a signal to enable the padder to accelerate automatically, when the floatable roller is pulled up by the fabric, the floatable roller moves upwards, at the moment, the included angle between the swinging arm and the vertical direction becomes large, and the floatable roller stops moving upwards until the printer speed is consistent with the padder speed; on the contrary, when the floatable roller rises too much, the included angle between the swing arm and the vertical direction is increased, and the operation opposite to the previous operation is carried out.
In another embodiment, the padder can be driven by a servo motor, the printing speed of the printer can be obtained through an encoder, and the printer and the padder can be directly synchronized.
The upper compression roller anti-contamination unwinding device or the lower compression roller anti-contamination unwinding device comprises an unwinding shaft, two ends of the unwinding shaft are fixed on the rack through a bearing and a bearing seat, and one end of the unwinding shaft is connected with a tension adjusting device; go up compression roller anti-staining coiling mechanism or lower compression roller anti-staining coiling mechanism and all include a rolling axle, and the rolling axle both ends are passed through bearing and bearing frame and are installed in the frame, and constant tension device is connected to the one end of rolling axle, corresponds compression roller lining membrane and installs on unreeling the axle.
The compression roller lining film is widely selected and can be a plastic film or a metal film, and also can be release paper coated with organic silicon, the plastic film comprises a PET film, a BOPP film, a PE film and the like, and the metal film is generally an aluminum film; the common thermal transfer base paper can also be applied, in particular to newsprint with strong water absorption, which is used for a back liner of a fabric printing surface, can improve the ink jet quantity of a printer, improve the color depth and enhance the penetration of dye, but the common paper is reduced in strength when meeting water, and is easy to break when being rolled; PET films are preferred in the present invention.
The compression roller cleaning device can also be used as a compression roller anti-contamination device and is mainly used for preventing contamination of the lower compression roller of the padder. The press roller cleaning device comprises a water tank and a brush roller, wherein the lower end of the brush roller is immersed in the water tank, and the rotation direction of the brush roller is opposite to that of the press roller under the padder. When the padder compression roller is arranged up and down, if the lower compression roller is a rubber roller, the compression roller can be eliminated without using a lining film, a cleaning device can be arranged below the compression roller, and the cleaning device is as follows: a brush roller is arranged in the water tank, the rotating direction of the brush roller is opposite to that of the rubber roller, the lower end of the brush roller is immersed in clear water, the upper end of the brush roller abuts against the bottom end of the rubber roller, a rubber scraper abuts against the rubber roller after the rubber roller contacts with the brush roller, the brush roller rotates to bring the clear water to clean the rubber roller, the cleaned rubber roller continues to rotate, water on the rubber roller is scraped by the rubber scraper, and the press roller is cleaned.
The padder consists of two rubber rollers or a rubber roller and a metal roller. The rubber can be nitrile rubber, polyurethane rubber, silica gel and the like; the inner core of the metal roller is a steel roller, and the outer surface of the metal roller is plated with chrome or Teflon or is wrapped by stainless steel.
Preferably, if a metal roller is selected, a heatable metal roller may be used so that the dye is more uniformly permeated, and the heating may be performed by an electric heating tube, steam heating, heat transfer oil heating, or the like.
The pressurizing mode of the padder is air cylinder pressurizing or oil cylinder pressurizing.
The invention further provides a digital dyeing method for textiles, which comprises the following steps: for medium and dark colors of light and thin fabrics (generally less than 30-120 g/square meter according to different fiber types, for example, hydrophobic terylene fabric is less than 120 g/square meter, and extremely hydrophilic real silk fabric is less than 30 g/square meter), because the ink amount sprayed and printed by a spray head can completely reach the saturated water content of the fabric, the dry fabric can be used for directly carrying out digital dyeing. The method specifically comprises the steps of sizing the fabric, drying, entering a digital printer, selecting colors to be printed, ensuring that the ink amount can reach the saturated water content of the fabric, printing ink, applying tension to the fabric through a floating roller, tightening the fabric, eliminating elastic edges and wrinkles of the fabric, entering a padder together with a compression roller lining film for squeezing, enabling dye to permeate into the fabric, rolling, stacking and fixing the fabric according to different fabric varieties, or steaming or baking at high temperature after drying, washing and drying the fabric after fixing the color, and forming a finished product.
For light color of light and thin fabrics and other non-light and thin fabrics, because the ink amount which can be sprayed by the spray head can not reach the saturated water content of the fabric, the fabric must be wetted firstly, that is, the fabric is wet during printing, and the humidity of the fabric is less than the saturated water content of the fabric; specifically, the fabric is sized firstly, the water content of the fabric is guaranteed to be smaller than the saturated water content, the sized fabric is not dried, the fabric directly enters a digital printer, the color to be printed is selected, the ink volume is guaranteed to reach the saturated water content of the fabric, ink is printed, the printed fabric is firstly subjected to fabric tension through a floating roller, the fabric is made to be tight, the loose edges and wrinkles of the fabric are eliminated, the fabric and a compression roller lining film enter a padder to be squeezed together, the fabric is squeezed, the dye permeates into the interior of the fabric, then the fabric is rolled, stacked and fixed in color, or dried and steamed or baked at high temperature, and the finally fixed fabric is washed and dried to form a finished product.
Wherein, the sizing slurry contains corresponding chemical additives required by dye-uptake, for example, when cotton cloth is dyed by reactive dye, if stacking technology is selected for fixation, the sizing slurry contains inorganic salt and caustic soda, and the PH value is ensured to be more than 11; if steaming fixation is selected, the slurry contains baking soda and urea; if the polyester fabric is adopted, no auxiliary agent can be added into the sizing agent; the specific fabric, dye, and the type and amount of the additives in the slurry are well known to those skilled in the art, and the present invention is not limited thereto.
For single full ground color, no lining film is used, because the press roll is stained even if the press roll is stained during pressing, and then the cloth is stained reversely, because the same color is adopted, the quality of the cloth is not influenced; therefore, for a single full color, the liner film may not be used if there are no frequent color changes.
The saturated water content of the fabric is the maximum water content of the fabric which is wet by water and is not extruded after being squeezed by a padder applying pressure, is the ratio of the weight increased in unit area to the original dry weight in unit area after being padred, is expressed by percent, is not a fixed numerical value and is related to the variety of the fabric, and the saturated water content of different fabric varieties is different; for the same fabric, the saturated water content is different due to different padder applied pressures, when the padder pressure is high, the saturated water content is low, and when the padder pressure is low, the saturated water content is high.
Has the advantages that: the digital dyeing device for the textiles realizes digital dyeing of the textiles by using a digital textile printing technology and a pad dyeing process in traditional textile dyeing, can realize digital dyeing of single full ground color of textile fabrics, and can also realize tie dyeing, hanging dyeing, halation dyeing and spray dyeing effects of the textile fabrics, has a smart and simple structure, and is a novel process for dyeing the textiles with low cost, low pollution, small batch and multiple varieties.
Drawings
FIG. 1 is a flow diagram of a digital textile dyeing apparatus;
FIG. 2 is a flow chart of digital dyeing of a single full ground color of a textile;
FIG. 3 is a floatable roller with a chute;
FIG. 4 is a floatable roller with swing arms;
FIG. 5 is a side view of the lower platen with cleaning bath;
FIG. 6 is a flow diagram of another digital textile dyeing apparatus;
FIG. 7 is a graph comparing the printing effects of example 2 and comparative example 2;
FIG. 8 is a comparison of the printing effects of example 5 and comparative example 5;
wherein 1 is the printer, and wherein the top is for beating printer head, and 2 is digital dyeing surface fabric, and 3 is that floatable roller prevents staining unwinding device, and 3 'is that floatable roller prevents staining the coiling mechanism, and 4 is floatable roller, and 5 is that the unwinding device is prevented staining by last compression roller of padder, and 5' prevents staining unwinding device for the lower compression roller of padder, and 6 is that the coiling mechanism of upper compression roller of padder, and 6 'is that the coiling mechanism of lower compression roller of padder, and 7 is that the upper compression roller of padder, and 7' is that the lower compression roller of padder, and 8 is the brush roller, and 9 is the rubber scraper.
Detailed Description
The present invention will be described in further detail with reference to specific examples. The examples will help to understand the present invention given the detailed embodiments and the specific operation procedures, but the scope of the present invention is not limited to the examples described below.
As shown in figure 1, the invention provides a digital textile dyeing device which comprises a printer 1, a floatable roller 4, a padder and a compression roller contamination prevention device, wherein the padder comprises an upper compression roller 7 of the padder and a lower compression roller 7' of the padder, and the compression roller contamination prevention device comprises a compression roller contamination prevention device which comprises an upper compression roller contamination prevention unit and a lower compression roller contamination prevention unit.
In one embodiment, in order to prevent the floatable roller 4 and the upper roller 7 of the padder from being contaminated, the upper roller contamination prevention unit may be configured to include an upper roller contamination prevention unwinding device, an upper roller contamination prevention winding device and an upper roller lining film, the floatable roller 4 and the upper roller 7 of the padder are disposed between the upper roller contamination prevention unwinding device and the upper roller contamination prevention winding device, the upper roller lining film wound from the unwinding device of the upper roller lining film of the padder is firstly wrapped on the floatable roller, then the upper roller lining film is attached to the fabric, and simultaneously the upper roller lining film enters the padder to pressurize between the upper roller 7 of the padder and the lower roller 7' of the padder and extrudes the dye ink into the fabric. The method can reduce the waste of the lining film and reduce the production cost, but the lining film is easy to displace when the fabric is not properly operated when being attached with the lining film, thereby increasing the operation difficulty.
In order to facilitate the operation, the upper compression roller anti-contamination unit can be further arranged to comprise a floatable roller anti-contamination unit and a padder upper compression roller anti-contamination unit, as shown in fig. 6, wherein the floatable roller anti-contamination unit comprises a floatable roller anti-contamination unwinding device 3, a floatable roller anti-contamination winding device 3' and a floatable roller lining film, the floatable roller anti-contamination unwinding device 3 and the floatable roller anti-contamination winding device 3' are respectively arranged at two sides of a floatable roller 4, the floatable roller lining film is unwound by the floatable roller anti-contamination unwinding device 3 and covers the floatable roller 4, and then is collected by the floatable roller anti-contamination winding device 3 '; the anti-contamination unit of the upper compression roller of the padder comprises an anti-contamination unwinding device 5 of the upper compression roller of the padder, an anti-contamination winding device 6 of the upper compression roller of the padder and lining films of the upper compression roller of the padder, wherein the anti-contamination unwinding device 5 of the upper compression roller of the padder and the anti-contamination winding device 6 of the upper compression roller of the padder are respectively arranged at two sides of an upper compression roller 7 of the padder, and the lining films of the upper compression roller of the padder are unwound by the anti-contamination unwinding device 5 of the upper compression roller of the padder and cover the upper compression roller 7 of the; after the fabric is printed by the printer, the printed surface of the fabric is contacted with the coated floatable roller 4 to adjust the tension, and then the fabric is sent to a position between an upper pressing roller 7 and a lower pressing roller 7' of a padder to be pressurized, and the dye ink is extruded into the fabric.
The anti-staining of the lower compression roller of the padder is realized by arranging a lower compression roller anti-staining unit. In one embodiment, the lower press roll contamination prevention unit may be configured to include a padder lower press roll contamination prevention unwinding device 5', a padder lower press roll contamination prevention winding device 6', and a padder lower press roll liner film. In the case of when the padder rolls are arranged up and down, if the lower roll is a rubber roll, the lower roll anti-contamination unit may be preferably provided as a roll cleaning device. Specifically, the press roller cleaning device is provided with: a brush roller is arranged in the water tank, the rotating direction of the brush roller 8 is opposite to the rotating direction of the rubber roller, the end of the brush roller 8 is immersed in clear water, the upper end of the brush roller abuts against the bottom end of the rubber roller, a rubber scraper abuts against the rubber roller after the rubber roller contacts with the brush roller, the brush roller rotates to bring the clear water to clean the rubber roller, the cleaned rubber roller continues to rotate, water on the rubber roller is scraped by the rubber scraper, and the press roller is cleaned.
The mounting position of the floatable roller is positioned between the printer and the padder, and the printed fabric is firstly subjected to certain tension by the floatable roller and then enters the padder to be pressurized under the tensioning condition so as to eliminate the elastic edge and the wrinkle of the fabric;
the floatable roller 4 has two structures, one of which is shown in fig. 3, the floatable roller is a guide roller, two ends of the guide roller are respectively provided with a bearing 10, the bearings are embedded in a chute 11 which is vertically arranged, two ends of the chute 11 are respectively provided with a floatable roller position sensor, when the floatable roller descends to be close to the lower end of the chute, the printing speed is higher than the padder speed, the position sensor gives a signal, the padder automatically accelerates, the floatable roller ascends until the printer speed is consistent with the padder speed, and the floatable roller stops ascending; on the contrary, when the floatable roller goes up and down to be close to the upper end of the sliding chute, the printing speed is lower than the padder speed, the position sensor gives a signal, the padder can automatically decelerate, the floatable roller descends until the printer speed is consistent with the padder speed, and the floatable roller stops descending.
Floatable roller 4 can also be set to the structure as shown in fig. 4, wherein floatable roller is a guide roller, bearings 10 are respectively installed at two ends of the guide roller to respectively connect with 12 ends of swing arm, 12 ends of swing arm are fixed on the frame through bearings, and tension of fabric is adjusted by suspending heavy objects at two ends of floatable roller. At the moment, the fabric spray printing surface contacts the roller surface of the floatable roller, the floatable roller presses the fabric to droop due to self weight, the tension of the fabric is positively correlated with the self weight of the floatable roller, the tension of the fabric can be adjusted by using a method of hanging weights at two ends of the floatable roller, and the floatable roller can float up and down along with the swing of the swing arm under the driving of the fabric. Preferably, an angle sensor is mounted at the top end of one end of the rack connected with the swing arm of the floatable roller, when the floatable roller droops too much, the included angle of the swing arm in the 12 vertical directions becomes small, at the moment, the padder speed is lower than the printer speed, the angle sensor gives a signal to enable the padder to accelerate automatically, when the floatable roller is pulled up by the fabric, the floatable roller moves upwards, at the moment, the included angle between the swing arm and the vertical direction becomes large, and until the printer speed is consistent with the padder speed, the floatable roller stops moving upwards; on the contrary, when the floatable roller rises too much, the included angle between the swing arm and the vertical direction is increased, and the operation opposite to the previous operation is carried out.
Of course, the padder can also be driven by a servo motor, the printing speed of the printer is obtained through an encoder, and the printer and the padder are directly synchronized.
The upper compression roller anti-contamination unwinding device or the lower compression roller anti-contamination unwinding device comprises an unwinding shaft, two ends of the unwinding shaft are fixed on the rack through a bearing and a bearing seat, one end of the unwinding shaft is connected with a tension adjusting device, and a plurality of devices capable of adjusting unwinding tension are arranged; the upper compression roller anti-contamination winding device or the lower compression roller anti-contamination winding device comprises a winding shaft, two ends of the winding shaft are mounted on the rack through a bearing and a bearing seat, one end of the winding shaft is connected with a constant tension device, and a plurality of devices capable of adjusting constant tension, such as friction plate winding, torque motor winding, magnetic powder clutch winding and the like, are preferably selected for winding the magnetic powder clutch. The corresponding compression roller lining films are arranged on the unwinding shaft, when the padder operates, the two layers of lining films clamp the fabric and enter the padder together, after squeezing, the lining films can be rolled together with the fabric for dyeing cotton cloth or wool fabric by using reactive dyes or dyeing wool fabric by using acid dyes, and the dye coloring is finished after the padding films are stacked for about 15-20 hours. The lining film of the press roll is widely selected and can be a plastic film or a metal film, and can also be release paper coated with organic silicon, the plastic film comprises a PET film, a BOPP film, a PE film and the like, and the metal film is generally an aluminum film; the common thermal transfer base paper can also be applied, in particular to newsprint with strong water absorption, which is used for a back liner of a fabric printing surface, can improve the ink jet quantity of a printer, improve the color depth and enhance the penetration of dye, but the common paper is reduced in strength when meeting water, and is easy to break when being rolled; PET films are preferred in the present invention.
The padder consists of two rubber rollers or a rubber roller and a metal roller. If a metal roller is selected, a heatable metal roller can be used, so that the dye is more uniformly permeated, and the heating mode can be heating by an electric heating pipe, heating by introducing steam or heating by heat transfer oil, and the like. The pressurizing mode of the padder is cylinder pressurizing or oil cylinder pressurizing.
The invention relates to a digital textile dyeing method by using a device, which comprises the following steps: for medium and dark colors of light and thin fabrics (generally less than 30-120 g/square meter according to different fiber types, for example, hydrophobic terylene fabric is less than 120 g/square meter, and extremely hydrophilic real silk fabric is less than 30 g/square meter), because the ink amount sprayed and printed by a spray head can completely reach the saturated water content of the fabric, the dry fabric can be used for directly carrying out digital dyeing. Specifically, the fabric is sized firstly, enters a digital printer after being dried, selects the color to be printed, ensures that the ink amount can reach the saturated water content of the fabric, prints the fabric after ink printing, gives the fabric tension through a floating roller firstly, enables the fabric to be tightened, eliminates the elastic edges and wrinkles of the fabric, enters a padder together with a compression roller lining film for squeezing, and then passes through squeezing, dyes permeate into the interior of the fabric, and then is stacked for fixation according to different fabric varieties or is rolled or dried, and then is steamed or baked at high temperature, and finally the fabric after fixation is washed and dried to form a finished product.
For light color of light and thin fabrics and other non-light and thin fabrics, because the ink amount which can be sprayed by the spray head can not reach the saturated water content of the fabric, the fabric must be wetted firstly, that is, the fabric is wet during printing, and the humidity of the fabric is less than the saturated water content of the fabric; specifically, the fabric is sized firstly, the water content of the fabric is guaranteed to be smaller than the saturated water content, the sized fabric is not dried, the fabric directly enters a digital printer, the color to be printed is selected, the ink volume is guaranteed to reach the saturated water content of the fabric, ink is printed, the printed fabric is firstly subjected to tension on the fabric through a floating roller, the fabric is made to be tight, the elastic edge and the wrinkles of the fabric are eliminated, the fabric and a lining film of a compression roller are pressed together in a padder, the pressing is carried out, the dye permeates into the interior of the fabric, then the fabric is rolled, stacked and fixed in color, or dried and steamed or baked at high temperature, and the finally fixed fabric is washed and dried to form a finished product.
Wherein, the sizing slurry contains corresponding chemical additives required by dye-uptake, for example, when cotton cloth is dyed by reactive dye, if stacking technology is selected for fixation, the sizing slurry contains inorganic salt and caustic soda, and the PH value is ensured to be more than 11; if steaming fixation is selected, the slurry contains baking soda and urea; if the polyester fabric is adopted, no auxiliary agent can be added into the sizing agent; the specific fabric, dye, and the type and amount of the additives in the slurry are well known to those skilled in the art, and the present invention is not limited thereto.
For single full ground color, no lining film is used, because the press roll is stained even if the press roll is stained during pressing, and then the cloth is stained reversely, because the same color is adopted, the quality of the cloth is not influenced; therefore, for a single full color, the liner film may not be used if there are no frequent color changes.
The saturated water content of the fabric is the maximum water content of the fabric which is wet by water and is not extruded after being squeezed by a padder applying pressure, is the ratio of the weight increased in unit area to the original dry weight in unit area after being padred, is expressed by percent, is not a fixed numerical value and is related to the variety of the fabric, and the saturated water content of different fabric varieties is different; for the same fabric, the saturated water content is different due to different padder applied pressures, when the padder pressure is high, the saturated water content is low, and when the padder pressure is low, the saturated water content is high.
The operation of the apparatus of the present invention will be described in detail with reference to specific examples.
Example 1
Taking a cashmere double-sided woolen fabric 2, wherein the gram weight is 900 g/square meter, the peony pattern is selected as the pattern, the final application is double-sided woolen overcoat, a client requires that the single side of the printed side is permeable, and the reverse side cannot be stained; the cashmere double-faced woolen fabric 2 is subjected to single-face sizing by using a printing trolley containing 2% of citric acid, 15% of urea and 1.5% of hydroxypropyl methyl cellulose, wherein the sizing amount is 200 g/square meter, 8 nozzles are arranged in the printing trolley in the printer 1, C, M, Y, K four-color ink is respectively filled in the nozzles, and color matching is carried out according to the required color. According to the device shown in figure 1, a sized cashmere double-sided wool fabric 2 is kept moist and is arranged on a printer 1 to print a well-colored peony pattern, a rolling mill upper pressure roller anti-contamination unreeling device 5 is filled with a 10-micron PET film, the printed fabric 2 is arranged below the PET film, the PET film is arranged above and tightly attached to a floatable roller 4, the floatable roller is a sliding groove type floatable roller shown in figure 4, the fabric 2 and the PET film pass through a rolling mill consisting of an upper pressure roller 7 and a lower pressure roller 7', the upper pressure roller 7 is a chromium steel roller, heating wires are arranged in the chromium steel roller, the roller surface temperature is controlled to be 120 +/-3 ℃, the lower pressure roller 7' is a silica gel roller, a water tank is arranged below the lower pressure roller 7', a hairbrush roller 8 and a rubber scraper 9 are arranged in the water tank, the lower end of the hairbrush roller 8 is immersed in clear water, the upper end of the lower pressure roller 7' is tightly attached to the bottom end of the lower pressure roller 7 'and rotates in the direction opposite to the lower pressure roller 7', and the, a rubber scraper 9 is abutted against the rubber roller, the brush roller 8 rotates to clean the lower pressing roller 7' with clean water, the cleaned lower pressing roller 7' continues to rotate, and the water on the lower pressing roller 7' is scraped by the rubber scraper 9; after squeezing, the padder upper compression roller anti-contamination winding device 6 on the upper compression roller 7 winds, then the fabric 2 which is well printed digitally is dried, steamed for 50 minutes at 102 ℃ by saturated steam, and finally washed and dried, and a finished product of the digital printed cashmere double-sided wool fabric is obtained. And observing the finished product of the digital printed cashmere double-sided wool fabric, and completely meeting the requirements of customers. Through detection, all fastness indexes of any one-meter digital printed cashmere double-sided wool fabric meet the GB18401-2010 national textile basic safety technical specification.
Example 2
The method is characterized in that a water-soluble cashmere fabric 2 with the weight of 110 g/square meter of woven plain weave is taken, printed patterns are customer supply patterns, and the printed patterns are cashmere scarves after digital printing, so that the colors of the front side and the back side are required to be consistent, and customers require a digital dyeing process to finish the patterns. Wetting cashmere fabric 2 by using a slurry containing 15% of urea, 2% of citric acid and 3% of sodium alginate, controlling the moisture content to be 100%, adjusting the pressure between a padder press roller 7 and a press roller 7', so that the saturated moisture content of the cashmere fabric 2 is 130%, arranging 5 spray heads in a printing trolley in a printer 1, respectively arranging C, M, Y, K four-color ink and one transparent ink, wherein the rest components in the transparent ink formula except dye are consistent with those in C, M, Y, K four-color ink, and according to a halation pattern, the printed ink amount is 30%, automatically distributing C, M, Y, K four-color ink amount by a computer, and if the total amount of the four-color ink at a light color cannot reach 30%, complementing the transparent ink to 30% of the total ink amount;
as shown in fig. 6, a moistened cashmere fabric 2 is loaded on a printer 1, adjusted passenger supply patterns are printed, a 12-micron PET lining film is loaded on a floatable roller anti-contamination unreeling device 3, the floatable roller lining film passes through the fabric and the floatable roller 4 to separate the floatable roller 4 from the fabric, then the stained lining film is collected by a floatable roller anti-contamination reeling device 3', the printed fabric contacts the floatable roller 4 with the lining film on the front side, wherein the floatable roller 4 adopts a sliding groove type floatable roller of fig. 3, and then enters a rolling mill consisting of an upper pressing roller 7 and a lower pressing roller 7', wherein the two pressing rollers are made of polyurethane rubber, the PET film with the thickness of 12-micron is loaded into a rolling mill lower pressing roller lining film unreeling device 5', the rolling mill upper lining film unreeling device 5 is loaded with newsprint with the weight of 40 g/square meter, the upper lining film and the lower lining film clamp the fabric 2, after squeezing, collecting newsprint of an upper press roll 7 by an upper press roll anti-contamination winding device 6 of a padder, collecting PET (polyethylene terephthalate) film of a lower press roll 7 'by a lower press roll anti-contamination winding device 6' of the padder, drying the fabric 2 subjected to digital dyeing, steaming for 30 minutes at the temperature of saturated steam of 102 ℃, and finally washing and drying to obtain a finished product of the fabric of digital dyed cashmere; the finished product of the digitally dyed cashmere fabric is observed, and the color of the front side and the back side of the finished product of the digitally dyed cashmere fabric is the same as that of the dyed scarf cashmere fabric, so that the finished product of the digitally dyed cashmere fabric completely meets the requirements of customers. One meter of digital dyed cashmere fabric is taken at will, and all fastness indexes meet the basic safety technical specification of GB 18401-.
Comparative example 2
The same passenger patterns as in example 1 were dyed with a water-soluble cashmere fabric having a weight of 110 g/m woven plain weave. Wetting cashmere fabric 2 with a slurry containing 15% of urea, 2% of citric acid and 3% of sodium alginate, controlling the moisture content to be 100%, adjusting the pressure between an upper pressing roller of a padder and a lower pressing roller of the padder to enable the saturated moisture content of the cashmere fabric to be 130%, using Chinese patent 2016214773527 to provide an ink-jet printing device for heavy fabrics, wherein 5 nozzles are arranged in a printing trolley in a printer, C, M, Y, K four-color ink and one transparent ink are respectively arranged, the rest components in the formula of the transparent ink are consistent with those in C, M, Y, K four-color ink, according to a carsickness pattern, the printed ink amount is 30%, and a computer automatically distributes C, M, Y, K four-color ink amount, wherein if the total amount of the four-color ink at a light color cannot reach 30%, the transparent ink is complemented to 30% of the ink amount;
the Chinese patent 2016214773527 provides an ink-jet printing device for heavy fabrics, the wetted cashmere fabric is arranged on a printer, the same pattern as the embodiment 1 is printed, after the printing is finished, the fabric enters a padder, is not heated and squeezed, finally enters an oven for drying, is steamed for 30 minutes at 102 ℃ by saturated steam, and is finally washed and dried to obtain a finished product of the digital dyed cashmere fabric, and the finished product can be observed by observing, because the surface of a compression roller is stained with dye when being squeezed, the fabric is reversely stained after the compression roller rolls for one circle, so that the carsickness pattern is seriously stained, the fabric loses the use value, as shown in figure 7, the left side is the embodiment 2, and the flower type color of the front side and the back side is completely consistent. The right side is comparative example 2, which is heavily stained, and the edges are wrinkled, becoming defective and losing use value.
Example 3
The all-cotton panne velvet fabric 2 with the weight of 300 g/square meter is taken, the dyed color is the single full color of Panton 19-4020TPG, and the fabric is used as furniture and sofa fabric after being digitally dyed, so the dyed color is required to be transparent. The method comprises the steps of wetting an all-cotton velveteen fabric 2 by using slurry containing 10% of urea, 3% of baking soda, 1.5% of sodium carboxymethylcellulose and 4% of salt, controlling the moisture content to be 70%, adjusting the pressure between a padder press roller 7 and a press roller 7' to enable the saturated moisture content of the all-cotton velveteen fabric 2 to be 90%, arranging 6 spray heads in a printing trolley in a printer 1, respectively arranging C, M, Y, K four-color ink and LM and LK light-color ink, carrying out color mixing according to the required color, enabling the printing ink amount to be 20%, and automatically distributing C, M, Y, K four-color ink and LM and LK light-color ink by a computer to enable the total ink amount to reach 20%.
As shown in fig. 2, the moistened all-cotton plain weave fabric 2 is arranged on a printer 1, a pantone number 19-4020TPG color with color mixing is printed, the front surface of the printed fabric 2 contacts a floatable roller 4, the floatable roller 4 uses a swing arm type floatable roller shown in the fourth figure, and then enters a padder consisting of an upper pressing roller 7 and a lower pressing roller 7', the upper pressing roller is a steel roller plated with metal chromium, the lower pressing roller is nitrile rubber, and the coloring of the pressing roller has little influence on the color of a finished product and can be ignored as a single full color, so that the embodiment does not use a compression roller contamination prevention device, the fabric 2 enters the padder, the dye is pressed into the fabric 2 through pressing, then the fabric 2 with digital dyeing is dried, is steamed for 15 minutes at 102 ℃ through saturated steam, and is finally washed and dried, and the finished product of the digital dyeing all-cotton plain weave fabric is obtained. Observing the finished product of the digitally dyed all-cotton velveteen fabric, wherein the color of the finished product is completely transparent as that of the fabric dyed by the traditional dye vat, and completely meets the requirements of customers; any one-meter digitally-dyed all-cotton plain fabric is taken, and all fastness indexes meet the basic safety technical specification of GB18401-2010 national textile.
Comparative example 3
The all-cotton panne velvet fabric 2 with the weight of 300 g/square meter is taken, the dyed color is the single full color of Panton 19-4020TPG, and the fabric is used as furniture and sofa fabric after being digitally dyed, so the dyed color is required to be transparent. The method comprises the steps of wetting an all-cotton velveteen fabric 2 by using slurry containing 10% of urea, 3% of baking soda, 1.5% of sodium carboxymethylcellulose and 4% of salt, controlling the moisture content to be 70%, adjusting the pressure between a padder press roller 7 and a press roller 7' to enable the saturated moisture content of the all-cotton velveteen fabric 2 to be 90%, arranging 6 spray heads in a printing trolley in a printer 1, respectively arranging C, M, Y, K four-color ink and LM and LK light-color ink, carrying out color mixing according to the required color, enabling the printing ink amount to be 20%, and automatically distributing C, M, Y, K four-color ink and LM and LK light-color ink by a computer to enable the total ink amount to reach 20%.
The Chinese patent 2016214773527 provides an ink-jet printing device for heavy fabrics, wherein all-cotton velveteen fabric 2 is arranged on a printer, a single full color of Pantong number 19-4020TPG is printed, after printing is finished, the fabric enters a padder, is squeezed, finally enters an oven for drying, is steamed for 20 minutes at 102 ℃ by saturated steam, and is finally washed and dried to obtain a digital all-cotton velveteen fabric finished product.
Example 4
The crepe satin silk material 2 is weighed as 25 g/square meter, the dyed pattern is dark blue and rose red double-color tie-dyeing, and the final use is high-grade silk scarf, so double-sided color penetration is required. Sizing the silk crepe satin plain fabric 2 by using a sizing agent containing 10 percent of urea, 3 percent of trisodium phosphate and 1.5 percent of CMC, and drying for later use; adjusting the pressure between the rolling mill press roll 7 and the press roll 7' to ensure that the saturated moisture content of the real silk crepe satin plain fabric 2 is 80 percent; 8 nozzles are arranged in a printing trolley in the printer 1, C, M, Y, K, O, B six-color ink and LM and LK light-color ink are respectively filled in the nozzles, color matching is carried out according to required colors, the printed ink amount is 80% of the weight of the fabric 2, and a computer can automatically distribute C, M, Y, K, O, B six-color ink and LM and LK light-color ink to enable the total ink amount to reach 80%. The method comprises the steps of using a device shown in figure 1, installing a sized and dried silk crepe satin fabric 2 on a printer 1, printing a dyed dark blue rose-red double-color tie-dyeing pattern, installing a 10-micron PET film in an unreeling device 5 of an upper press roll lining film of a padder, placing the printed fabric 2 below the PET film, enabling the PET film to be attached to a floatable roll 4 in a close manner, enabling the floatable roll to be a sliding groove type floatable roll shown in figure 4, enabling the fabric 2 and the PET film to pass through the padder consisting of an upper press roll 7 and a lower press roll 7', enabling the upper press roll 7 of the padder to be a Teflon-plated steel roll heated by an electric heating wire, controlling the surface temperature to be 90 +/-3 ℃, enabling the lower press roll 7' of the padder to be a silica gel roll, enabling a water tank to be arranged below the lower press roll 7' of the padder, enabling a hairbrush roll 8 and a rubber scraper 9 to be arranged in the water tank, enabling the lower end of the hairbrush roll 8 to be immersed in clear water, enabling the upper end to be attached to the, after the lower pressing roller 7 'of the padder contacts the brush roller 8, a rubber scraper 9 is abutted against the rubber roller, the brush roller 8 rotates to clean the lower pressing roller 7' with clean water, the cleaned lower pressing roller 7 'continues to rotate, and the water on the lower pressing roller 7' is scraped by the rubber scraper 9; and squeezing, rolling by a padder upper press roll rolling device 6 on an upper press roll 7, drying the digitally dyed fabric 2, steaming for 15 minutes at 102 ℃ by saturated steam, and finally washing and drying to obtain a finished product of the digitally dyed real silk crepe satin plain fabric. Observing the finished product of the digitally dyed real silk fabric, wherein the color of the front side and the back side of the finished product of the digitally dyed real silk fabric is the same as that of the manually tie-dyed real silk crepe satin plain fabric, and completely meets the requirements of customers, and after detection, all fastness indexes meet the basic safety technical specification of GB 18401-.
Comparative example 4
The crepe satin silk material 2 is weighed as 25 g/square meter, the dyed pattern is the same dark blue and rose red double-color tie dyeing as the embodiment 3, the final application is high-grade silk scarf, so double-sided color penetration is required. Sizing the silk crepe satin plain fabric 2 by using a sizing agent containing 10 percent of urea, 3 percent of trisodium phosphate and 1.5 percent of CMC, and drying for later use; adjusting the pressure between the rolling mill press roll 7 and the press roll 7' to ensure that the saturated moisture content of the real silk crepe satin plain fabric 2 is 80 percent; 8 nozzles are arranged in a printing trolley in the printer 1, C, M, Y, K, O, B six-color ink and LM and LK light-color ink are respectively filled in the nozzles, color matching is carried out according to required colors, the printed ink amount is 80% of the weight of the fabric 2, and a computer can automatically distribute C, M, Y, K, O, B six-color ink and LM and LK light-color ink to enable the total ink amount to reach 80%.
The Chinese patent 2016214773527 provides an inkjet printing device for heavy fabrics, the moistened real silk crepe satin plain fabric 2 is arranged on a printer, the same pattern as the embodiment 4 is printed, after the printing is finished, the fabric enters a padder, is squeezed, finally enters an oven for drying, is steamed for 15 minutes at the temperature of saturated steam of 102 ℃, and is finally washed and dried to obtain a finished product of the digital dyed real silk crepe satin plain fabric, the finished product can be observed, the edge of the fabric generates serious wrinkles because of the squeezing of the padder, the surface of a press roll is stained with dye when being squeezed, the fabric is reversely stained after the press roll rolls for one circle, so the pattern is stained seriously, and the fabric loses use value.
Example 5
Taking 2 g of polyester twill fabric, wherein the gram weight is 220 g, the dyeing color is Panton number 19-4305TPX, the final application is high-grade female garment fabric, guests require dye to permeate, and the finished product fabric cannot have a white core; sizing the terylene twill fabric 2 by using 3% etherified guar gum slurry to ensure that the water content is 70%; adjusting the pressure between the rolling mill press roll 7 and the press roll 7' to ensure that the saturated moisture content of the real silk crepe satin plain fabric 2 is 90 percent; 8 nozzles are arranged in a printing trolley in the printer 1, C, M, Y, K four-color ink is respectively filled in the nozzles, color matching is carried out according to the required color, the printed ink amount is 20% of the weight of the fabric 2, and the computer can automatically distribute C, M, Y, K four-color ink to enable the total ink amount to reach 20%.
The wetted polyester twill fabric 2 is arranged on a printer 1 by using a device shown in figure 2, the color of Panton number 19-4305TPX with the color being adjusted is printed, the printed fabric 2 directly contacts with the floatable roller 4 on the front surface, wherein the floatable roller 4 adopts a swing arm type floatable roller shown in the figure IV, and then enters a padder consisting of an upper compression roller 7 and a lower compression roller 7', wherein the upper press roll is nitrile rubber, the lower press roll is a steel roll plated with metal chromium, because the color of the press roll is single full color, the influence of the press roll staining on the color of the finished product is very small and can be ignored, therefore, in this embodiment, the fabric 2 enters the padder without being stained by the press roll, the dye is pressed close to the inside of the fabric 2 after pressing, and then drying the fabric 2 subjected to digital dyeing, steaming the fabric for 15 minutes at 180 ℃ by superheated steam, and finally washing and drying the fabric to obtain a finished product of the digital dyeing polyester twill fabric. The finished product of the digitally dyed nylon twill fabric is observed, has the same color as the fabric dyed in the traditional dye vat, and completely meets the requirements of customers. Through detection, all fastness indexes of any one-meter digital dyeing nylon twill fabric meet the GB18401-2010 national textile basic safety technical specification.
Comparative example 5
Taking the same polyester twill fabric 2 of example 5, wherein the gram weight is 220 grams, the dyeing color is Panton number 19-4305TPX, the final application is high-grade women's dress fabric, guests require dye to permeate, and the finished product fabric cannot have a white core; sizing the terylene twill fabric 2 by using 3% etherified guar gum slurry to ensure that the water content is 70%; adjusting the pressure between the rolling mill press roll 7 and the press roll 7' to ensure that the saturated moisture content of the real silk crepe satin plain fabric 2 is 90 percent; 8 nozzles are arranged in a printing trolley in the printer 1, C, M, Y, K four-color ink is respectively filled in the nozzles, color matching is carried out according to the required color, the printed ink amount is 20% of the weight of the fabric 2, and the computer can automatically distribute C, M, Y, K four-color ink to enable the total ink amount to reach 20%.
Chinese patent 2016214773527 provides an ink-jet printing device for heavy fabrics, the wetted polyester twill fabric 2 is arranged on a printer, the single full color of Pantong number 19-4305TPX is printed, after the printing is finished, the fabric is put into a padder, squeezed, finally put into an oven for drying, steamed for 20 minutes at the temperature of saturated steam of 102 ℃, finally washed and dried to obtain a finished product of the digital polyester twill fabric, the obtained finished product can be observed, the edge of the fabric generates serious wrinkles because of the squeezing of the padder, in addition, because the squeezing speed can not be automatically adjusted, the padder speed is not matched with the printing speed and must be manually adjusted, the speed of the padder squeezing is slow, and the speed difference is very big, causes the digital dyed fabric serious segment difference, and the fabric loses the use value, as shown in fig. 8, the left side is example 5, and the front and back sides are completely consistent in color and have the same dyeing effect. The right side is example 5, which has serious wrinkles and serious chromatic aberration caused by the speed of the vehicle, and becomes a defective product.
Example 6
Taking an all-cotton canvas fabric 2, wherein the gram weight is 250 g/square meter, the fabric is dyed into a hang-dyed pattern with the length of one meter, the dark color is Pantong number 18-1550TPX, the fabric is gradually transited to the light color to be Pantong number 14-1513TPX, the fabric is an international brand case fabric, guests require dye permeation, and the finished fabric cannot have a white core; sizing the all-cotton canvas fabric 2 by using a sizing agent which contains 1% of xanthan gum, 2% of caustic soda and a proper amount of buffering agent disodium hydrogen phosphate to adjust the pH value to 12, and ensuring that the water content is 75%; adjusting the pressure between the press roller 7 and the press roller 7' of the padder to ensure that the saturated moisture content of the all-cotton canvas fabric 2 is 100 percent; 9 nozzles are arranged in a printing trolley in the printer 1, C, M, Y, K, O, B six-color ink, LM and LK light-color ink and a piece of colorless transparent ink are respectively filled in the nozzles, color matching is carried out according to the required color, the printed ink amount is 25% of the weight of the fabric 2, and the computer can automatically distribute C, M, Y, K, O, B six-color ink, LM and LK light-color ink and a piece of colorless transparent ink to enable the total ink amount to reach 25%. The device shown in figure 6 is used for loading wetted all cotton canvas fabric 2 on a printer 1, a 12 mu m PET lining film is loaded on a floatable roller anti-contamination unreeling device 3, the lining film passes through the space between the fabric and the floatable roller 4 to separate the floatable roller 4 from the fabric, then the stained lining film is collected by a floatable roller reeling device 3', the printed fabric contacts the floatable roller 4 at the front side through the lining film, the floatable roller 4 uses the sliding groove type floatable roller of figure 3 to print adjusted hang dyeing patterns, the printed fabric contacts the lining film at the front side through the floatable roller, the front side contacts the floatable roller 4 and enters a padder consisting of an upper press roller 7 and a lower press roller 7', wherein the two press rollers are both made of polyurethane rubber, the padder lower press roller 7 'lining film unreeling device 5' is loaded with the PET film with the thickness of 12 mu m, the padder upper press roller 7 lining film unreeling device 5 is loaded with the PE film unreeling device 5 with the thickness of 25 mu m, the upper lining film and the lower lining film clamp the fabric 2 to enter a padder, after squeezing, the PE film of the lower compression roller 7 'is collected by a winding device 6', then the fabric 2 which is subjected to digital dyeing and the PET film of the upper compression roller 7 are wound on a large winding device together through a torque motor, and after being piled for 20 hours, the fabric is finally washed and dried, and a finished product of the all-cotton canvas fabric which is subjected to digital dyeing is obtained. The finished product of the digitally dyed all-cotton canvas fabric is observed, and the color of the front side and the back side of the finished product is consistent with that of the hand-made hang-dyed all-cotton canvas fabric, so that the finished product completely meets the requirements of customers. One meter of digital dyeing all-cotton canvas fabric is taken at will, and all fastness indexes meet the basic safety technical specification of GB18401-2010 national textile.
The present invention provides a digital textile dyeing apparatus, and a method and a device for implementing the same, which have many ways and are merely preferred embodiments of the present invention, and it should be noted that, for those skilled in the art, many modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention. All the components not specified in the present embodiment can be realized by the prior art.

Claims (10)

1. A digital textile dyeing device, which is characterized by comprising a printer (1), a floatable roller (4), a padder and a pressure roller contamination prevention device,
the padder comprises a padder upper press roll (7) and a padder lower press roll (7');
prevent that compression roller from staining device includes that the compression roller prevents staining the unit and prevents staining the unit with lower compression roller, wherein:
the upper compression roller anti-contamination unit comprises an upper compression roller anti-contamination unwinding device, an upper compression roller anti-contamination winding device and an upper compression roller lining film, the floatable roller (4) and the padder upper compression roller (7) are arranged between the upper compression roller anti-contamination unwinding device and the upper compression roller anti-contamination winding device, the upper compression roller lining film which is wound from the padder upper compression roller lining film unwinding device is firstly coated on the floatable roller (4), then the upper compression roller lining film is attached to the fabric, and meanwhile, the upper compression roller lining film enters the position between the padder upper compression roller (7) and the padder lower compression roller (7') of the padder to be pressurized and extrudes dye ink into the fabric;
or the upper compression roller anti-contamination unit comprises a floatable roller anti-contamination unit and a padder upper compression roller anti-contamination unit, wherein the floatable roller anti-contamination unit comprises a floatable roller anti-contamination unwinding device (3), a floatable roller anti-contamination winding device (3 ') and a floatable roller lining film, the floatable roller anti-contamination unwinding device (3) and the floatable roller anti-contamination winding device (3 ') are respectively arranged at two sides of the floatable roller (4), and the floatable roller lining film is unwound through the floatable roller anti-contamination unwinding device (3) and covers the floatable roller (4), and then is collected by the floatable roller anti-contamination winding device (3 '); the anti-contamination unit for the upper compression roller of the padder comprises an anti-contamination unwinding device (5) for the upper compression roller of the padder, an anti-contamination winding device (6) for the upper compression roller of the padder and an upper compression roller lining film of the padder, wherein the anti-contamination unwinding device (5) for the upper compression roller of the padder and the anti-contamination winding device (6) for the upper compression roller of the padder are respectively arranged on two sides of the upper compression roller (7) of the padder, and the upper compression roller lining film of the padder is unwound by the anti-contamination unwinding device (5) for the upper compression roller of the padder and covers the upper compression roller (7) of the padder and is; after the fabric is printed by a printer, the printed surface of the fabric is contacted with the coated floatable roller (4) to adjust the tension, and then the fabric is sent to a position between an upper pressing roller (7) and a lower pressing roller (7') of a padder to be pressurized, and dye ink is extruded into the fabric;
the lower compression roller anti-contamination unit comprises a padder lower compression roller anti-contamination unwinding device (5 '), a padder lower compression roller anti-contamination winding device (6') and a padder lower compression roller lining film; or the lower press roll anti-contamination unit is a press roll cleaning device.
2. The digital textile dyeing apparatus of claim 1, wherein the printer is a scanning printer or a single-channel printer.
3. The digital textile dyeing device according to claim 1, characterized in that the floatable roller (4) is a guide roller, bearings (10) are respectively installed at two ends of the guide roller, the other end of each bearing is embedded in a vertically arranged chute (11), or the other end of each bearing (10) is connected with one end of a swing arm (12), the other end of each swing arm is fixed on the frame through a second bearing, and the tension of the fabric is adjusted by using the self weight of the floatable roller or hanging weights at two ends.
4. Digital textile dyeing apparatus according to claim 1, characterized in that a floating roll position sensor is arranged on the chute (11) and an angle sensor is mounted on the swing arm (12).
5. The digital textile dyeing device according to claim 1, wherein the upper compression roller anti-contamination unwinding device or the lower compression roller anti-contamination unwinding device comprises an unwinding shaft, two ends of the unwinding shaft are fixed on the frame through a bearing and a bearing seat, and one end of the unwinding shaft is connected with a tension adjusting device; go up compression roller anti-staining coiling mechanism or lower compression roller anti-staining coiling mechanism and all include a rolling axle, and the rolling axle both ends are passed through bearing and bearing frame and are installed in the frame, and constant tension device is connected to the one end of rolling axle, corresponds compression roller lining membrane and installs on unreeling the axle.
6. The digital textile dyeing device according to claim 1, characterized in that the upper or lower roll liner film is a plastic film, a metal film, release paper or heat transfer base paper.
7. Digital textile dyeing unit according to claim 1 characterized in that the press roll washing unit comprises a water tank and a brush roll (8), the lower end of the brush roll (8) being immersed in the water tank and the brush roll (8) rotating in the opposite direction to the press roll (7') under the padder.
8. Digital textile dyeing unit according to claim 1, characterized in that the padder consists of two rubber rollers or of one rubber roller and one metal roller, respectively as a padder upper press roller (7) and a padder lower press roller (7').
9. Digital textile dyeing unit according to claim 8, characterized in that the metal roller is a heatable metal roller.
10. The digital textile dyeing device according to claim 1, characterized in that the pressing mode of the padder is air cylinder pressing or oil cylinder pressing.
CN202110468143.5A 2021-04-28 2021-04-28 Digital dyeing apparatus of fabrics Withdrawn CN113059924A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110468143.5A CN113059924A (en) 2021-04-28 2021-04-28 Digital dyeing apparatus of fabrics

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110468143.5A CN113059924A (en) 2021-04-28 2021-04-28 Digital dyeing apparatus of fabrics

Publications (1)

Publication Number Publication Date
CN113059924A true CN113059924A (en) 2021-07-02

Family

ID=76568138

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110468143.5A Withdrawn CN113059924A (en) 2021-04-28 2021-04-28 Digital dyeing apparatus of fabrics

Country Status (1)

Country Link
CN (1) CN113059924A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114277516A (en) * 2021-11-17 2022-04-05 连云港如年实业有限公司 Intelligent continuous pad dyeing machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114277516A (en) * 2021-11-17 2022-04-05 连云港如年实业有限公司 Intelligent continuous pad dyeing machine
CN114277516B (en) * 2021-11-17 2024-02-09 连云港如年实业有限公司 Intelligent continuous padding machine

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Application publication date: 20210702