KR100317859B1 - The dyeing machine for applying treatment agent to fabric - Google Patents

Abstract

The spray dyeing apparatus includes a fabric guide tube and a fabric guide tube connected to and disposed on the fabric storage tank to define a continuous loop for the fabric. The pump and blower are provided for pressurizing and conveying the dye and air into the fabric guide tube by a spray nozzle disposed on the top of the fabric guide tube and a directing nozzle arranged on the bottom support plate of the fabric guide tube. The bottom support plate has a support plate surface having a width sufficient to substantially expand the width of the fabric as it moves through the fabric guide tube. The directing nozzles are installed in the support plate in spaced form to generate a high velocity air stream in the downstream direction that defines above the support plate to have a fabric that floats over the support plate and moves in the downstream direction. The high velocity air stream also forms a low pressure zone under the fabric such that the pressure difference between the upper and lower sides of the fabric and the air stream cause violent vibrations in the fabric. A spray nozzle is installed on top of the fabric guide tube to spray the sprayed dye onto the stretched fabric.

Description

DYEING MACHINE FOR APPLYING TREATMENT AGENT TO FABRIC}

As used herein, the term spray dyeing apparatus refers to a dyeing apparatus in which a liquid dye and other fabric treating agent are brought into contact with the fabric in a sprayed form by a spray nozzle disposed on the fabric. The dyeing apparatus according to the present invention is a fabric of a width sufficient to allow the fabric to fully unfold in the width direction as the fabric is moved through the dyeing apparatus to receive dye sprayed thereon across the width to carry out the dyeing operation. Provide a support surface. The present invention also discloses the construction of a dyeing apparatus comprising a plurality of directing nozzles located underneath the stretched fabric generating a high speed air stream for supporting and moving the fabric on a support surface. . The high velocity air stream also forms a low pressure zone under the stretched fabric which causes a pressure differential between the top and bottom of the stretched fabric. The pressure difference causes the fabric to vibrate violently to increase the penetration and diffusion of dye into the fabric. Therefore, high efficiency, low energy consumption, low bath ratio and low pollution dyeing can be achieved.

The present invention relates to a conventional dyeing apparatus, in particular due to the high velocity air stream under the stretched fabric forming a low pressure beneath the fabric and the mass transfer of energy between the fabric and the high velocity air stream which causes the fabric to continuously move downstream. In comparison, the penetration and diffusion of dye into the fabric is highly efficient to complete the entire dyeing operation in a very short time and is very effective for washing, rinsing and bleaching the dyed fabric in a very effective way and removing unwanted particles or impurities from the fabric. It relates to a dyeing apparatus that is a method.

In a conventional airflow or liquid flow dyeing apparatus, the fabric is moved by a fabric driving wheel and a driving nozzle set. The fabric is in the form of a rope-like bundle to pass through the narrow passage of the driving nozzle. The fabric is also constrained to a circulating fabric guide tube having a limited small diameter to prevent the loss of kinetic energy of the moving fabric due to the unfolding of the fabric and thus maintain the speed of the fabric at the desired level. Therefore, the fabric is constrained in the form of a rope as it moves past the inside of the fabric guide tube where the dyeing operation is actually performed. Conventional airflow or liquid flow dyeing devices are designed to use the driving force generated by an air stream nozzle or a liquid stream nozzle (driving nozzle) or a combination thereof for the fabric to be moved through the fabric guide tube. Techniques for liquid flow dyeing devices have been disclosed in several prior art patents and therefore no further explanation is given here. As for the air flow dyeing device, it is installed upstream and downstream or on the liquid driving nozzle to provide auxiliary propulsion, to mitigate the powerful driving force generated by the liquid driving nozzle, and to provide a low bathing dyeing operation. It is defined to include an air driving nozzle. In general, the air flow dyeing apparatus has a fabric storage tank, a fabric guide tube, a fabric driving wheel, a dye driving nozzle set, an air driving nozzle set, a fabric folding device, a dye pump, a blower, a heat control heat exchanger / filter device, and the like. It is classified into high temperature, high pressure type and regular temperature, regular pressure type including control unit. In the structure, the fabric guide tube is disposed above the fabric storage tank and extends coaxially. The upstream and downstream ends of the fabric guide tube are connected to and connected to the transverse end of the fabric storage tank, respectively, to allow the fabric to be driven and guided from the fabric storage tank to the driving nozzle set by the driving wheel. The dye and air stream generated by the set of driving nozzles drive the fabric into the fabric guide tube and eventually move into the fabric storage tank on the downstream side. Dye and air exiting the fabric guide tube are recycled to the dye pump and air blower through each return tube. The fabric moving past the rear and rear sides of the tank to the fabric storage tank is moved to the side front and out of the fabric storage tank by the fabric driving wheel to circulate continuously through the fabric storage tank and the fabric guide tube.

1 and 2 show a conventional air flow type and liquid flow type dyeing apparatus, respectively, both of which include a fabric storage tank A and a fabric guide tube A1. The fabric guide tube A1 has a dye driving nozzle A11 (for liquid flow type) or an air driving nozzle A12 (for air flow type) at an upstream inlet. The dye driving nozzle A11 and the air driving nozzle A12 are generally referred to as driving nozzles and denoted by reference numeral A2 in the following description. The fabric guide tube A1 is connected to the fabric storage tank A in order to define a continuous fabric circulation loop through which the fabric B to be dyed is moved and has a downstream outlet where fluid is in contact with the tank. During the dyeing operation, the fabric B inside the fabric storage tank A is driven from the tank to the driving nozzle A2 by the fabric driving wheel A3 and applied to the dye and / or air stream generated by the driving nozzle A2. Are dyed by The dye / air stream also allows the fabric B to move past the fabric guide tube A11 and back to the fabric storage tank A. The dye (C) inside the fabric storage tank (A) is guided to the dye pump (A5) through a return tube (A4) located below the fabric storage tank (A). Air flowing into the fabric storage tank A with the fabric B is guided to the blower D by an air return tube A6 disposed over the fabric storage tank A. The fabric (B), which moves out of the fabric guide tube (A1) and enters the lateral rear of the fabric storage tank (A), is driven forward by the inclination or gravity of the fabric storage tank (A) or the pressure difference thereof to repeat the dyeing cycle. do.

Therefore, in a conventional air flow dyeing apparatus, the movement of the fabric is caused by the dye generated by the driving nozzle A2 located at the side front end upstream inlet so that the fabric B moves through the fabric guide tube A1. By the air stream and the fabric driving wheel A3, thus providing a low bathing dye. In a conventional dyeing apparatus, the driving nozzle A2 is configured to have a nozzle opening or inlet of circular cross section as shown in Figs. In order to control the flow rate of the stream exiting the driving nozzle A2, the structure of the various adjustable driving nozzles has been developed to gradually take the driving nozzle of the fixed nozzle opening size or the variable nozzle. The operation of the adjustable driving nozzle A2 in the dyeing operation is substantially the same as the fixed type nozzle since the fabric B is in the form of a rope when passing through the nozzle A2. The adjustable driving nozzle does not constitute an improvement discussed in the present invention, so further explanation is omitted. Although the same members or parts are denoted by the same reference numerals in the air flow type and liquid flow type dyeing apparatus shown in FIGS. 1 and 2, the following description is based on the air flow type dyeing apparatus. The fabric (B) passes through the central passage (A22) of the protruding opening (A21) of the nozzle (A2) with the dye / air stream exiting the nozzle (2) which surrounds the fabric on the downstream side and forms a binding force on the fabric (B). do. The dye / air stream leaving nozzle A2 spreads and transfers kinetic energy to the fabric to generate propulsion in the downstream direction. Fabric guide tube (A1) through which driving nozzle (A2) and fabric (B) move in a conventional air flow or liquid flow dyeing device to prevent overstretching energy, to significantly reduce fabric speed and to achieve the desired dyeing effect. ) Has a circular cross section for transferring and saving energy. However, using a constrained array of driving nozzles A2 for driving the fabric B downstream may result in the fabric (B) being moved through the passages of the driving nozzle A2 and the fabric guide tube A1. B) has a large velocity upon passing through the nozzle, so that the driving nozzle (B) is formed on the sidewall of the passageway of the driving nozzle A2 so as to form a rope-like arrangement requiring the fabric causing a violent impact of the fabric B. Due to the fact that A2) and the passage of the fabric guide tube (A1) are constrained, the fabric (B) is damaged. In addition, when the power output from the driving nozzle A2 is excessive, the fabric B receives a large impact from the dye / air stream and damages the fibrous structure of the fabric B such that separation and detachment of the fiber occurs. On the other hand, the partial power of the driving nozzle A2 does not provide sufficient penetration into the rope arrangement of the fabric B. The moving speed of the fabric B is reduced and thus the circulation cycle of the fabric B becomes long.

Further, when the fabric B passes through the driving nozzle A2, the fabric B is usually folded in the width direction and tightly pressed. Although impacting fabric (B) to form a rope-like arrangement helps transfer energy from the dye / air stream to fabric (B) and move fabric (B) downstream, impact arrangement of such fabric It is difficult to penetrate the furnace dye uniformly and sufficiently into the fabric (B). In other words, large amounts of energy are needed to drive the dye deep into the fabric B and to release the dye already penetrated into the fabric B out of the fabric B in order to allow the new dye to migrate. Therefore, to overcome this problem, the dyeing cycle is long and the dye stream is continuously provided by the driving nozzle A2 to impact the fabric B. This consumes dyeing time and labor.

The momentum at which the driving nozzle A2 is applied to the fabric B is calculated based on the speed when the fabric B passes through the passage A22 of the driving nozzle A2. When the fabric B leaves the passage A22, the decreasing speed with respect to the cross-sectional area of the annular inlet A21 of the driving nozzle A2 causes the dye flow or air flow to spread so that the spread of the dye flow or air flow is It is smaller than that of the fabric guide tube A1 which slows down (B). The fabric (B) itself is not a fluid and must be folded or superimposed to control the slowdown. This is especially clear for all cotton fabrics or fabrics with large unit weights. Therefore, the fabric B is pressed tightly inside the fabric guide tube A1, causing a piston-like action inside the cylinder bore. In addition, the friction between the fabric guide tube (A1) and the fabric (B) is increased. In fact, in a conventional air flow and liquid flow dyeing device, once the fabric B leaves the driving nozzle A2, the increase in space causes most of the momentum to be lost due to the spread of air flow or dye induction and thus into the fabric B. Dye penetration is reduced. Theoretically, when the fabric (B) leaves the fabric guide tube (A1), the expansion of the air stream or air flow causes the fabric (B) to stretch out, but sometimes the knitting (B) is in the form of a very long rope during dyeing. It is impossible to make the fabric B flatten out properly. Therefore, air flow dyeing apparatuses are typically not suitable for all cotton fabrics or for fabrics with large unit weights. Further, in the conventional air flow dyeing apparatus, the fabric is only subjected to the operation of the driving nozzle A2, and undyed stains are found in the fabric B, and thus the effect of dyeing is bad.

Air flow dyeing apparatuses typically process fabrics batchwise and the amount of fabric taken by the batch depends on the size of the fabric storage tank. The most common fabric storage tanks are 100-200 kg. If the batch is larger than its capacity, the dyeing operation should be carried out with one or more dyeing units. Alternatively, the dyeing apparatus may be designed as a very large fabric storage tank separated into several channels provided as separate fabric storage tanks. In addition to the capacity of the fabric storage tank, the productivity of the dyeing unit is also determined by the cycle of the dyeing cycle. In general, the dyeing cycle is approximately 2 minutes, not shortened for effective dyeing to be obtained.

The movement of the fabric B in the fabric storage tank A is driven by the slope provided inside the tank A and the position caused by the pile of fabric B inside the tank. This is particularly suitable for air flow dyeing machines. Therefore, the air flow dyeing apparatus usually employs an array of type J, type O or type U to provide a height difference which causes the movement of the fabric B inside the fabric storage tank A. In addition, a low friction material layer is installed inside the fabric storage tank (A) to protect the fabric (B) from overfriction of the fabric storage tank (A). Therefore, although most dyeing devices have different arrangements, in addition to the differences in the factors mentioned above, gravity and potential energy, bath ratio, momentum of dyeing fluid and acceptable folding lines for certain fabrics can be manipulated to achieve dyeing effects according to the same principle. do.

Figure 5 shows a conventional liquid flow dyeing apparatus created by the inventor, which is disclosed in Taiwan Utility Model 89941, China Utility Model ZL 93209236.5, China Patent 93105099.5 and US Patent 5,381,678. The present invention is an improvement on the liquid flow dyeing apparatus.

As shown in Fig. 5, the liquid flow dyeing apparatus of the present inventors has side front and rear ends of the fabric guide tube A1 connected to the fabric storage tank A to define a continuous path for the fabric B. It has a structure similar to that of the conventional liquid flow dyeing apparatus shown in FIG. 1, which includes a fabric storage tank A and a fabric guide tube A1 disposed on the fabric storage tank. The front inlet of the fabric guide tube (A1) has a driving nozzle (A2) and the side front end of the fabric storage tank (A) connects the fabric (B) from the fabric storage tank (A) to the drive nozzle (A2) and the fabric guide. Finally, it has a fabric driving wheel A3 for conveying it back into the tube storage tank A into the tube A1. The driving nozzle A2 generates a dye stream to carry out the dyeing operation and sends the dye C and the fabric B through the fabric guide tube A1 into the fabric storage tank A. The dye (C) collected inside the fabric storage tank (A) is led to a dye pump (A5) for pressurizing and transporting the dye through a return tube (A4) and through a dye circulation tube (A8) to a driving nozzle (A2). It is guided and injected into the fabric (B) to drive the fabric (B) through the fabric guide tube (A1). The fabric guide tube (A1) is pressurized by the pump (A5) and the dye (C) carried through the tube (A7) downstream by the directing nozzle (A61) to improve the movement and dyeing efficiency of the fabric (B). It includes a plurality of directing nozzles (A61) arranged at the bottom of the fabric guide tube to be injected in the direction.

The present invention relates to a spray dyeing apparatus, and more particularly, to a pressure difference formed between a top and a bottom of a stretched fabric with vibrations of the fabric caused by a high velocity air stream under the fabric to improve dyeing efficiency and effectiveness. The present invention relates to a spray dyeing apparatus having a structure in which the fabric width is fully extended during the dyeing process.

BRIEF DESCRIPTION OF THE DRAWINGS Preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings in order to facilitate understanding of the present invention:

1 is a side sectional view showing a conventional air flow dyeing apparatus;

2 is a side sectional view showing a conventional liquid flow dyeing apparatus;

3 is a cross-sectional view showing a driving nozzle applied to a conventional air flow dyeing apparatus;

3A is a top view of the driving nozzle of FIG. 3;

4 is a sectional view showing a driving nozzle applied to a conventional liquid flow dyeing apparatus;

4A is a top view of the driving nozzle of FIG. 4;

5 is a side cross-sectional view showing another conventional liquid flow dyeing apparatus disclosed in Chinese Utility Model ZL 93209236.5, Chinese Patent 93105099.5, and United States Patent 5,381,678;

FIG. 6 is a sectional view showing an adjustment directing nozzle applied to the dyeing apparatus shown in FIG. 5; FIG.

FIG. 7 shows a fragment of the directing nozzle shown in FIG. 6; FIG.

8 is a side sectional view showing a spray dyeing apparatus according to the present invention;

9 is a cross-sectional view of the spray dyeing apparatus according to the present invention;

10 is a sectional view of the spray dyeing apparatus according to the present invention;

FIG. 11 is a side view of the adjusting directing nozzle applied to the spray dyeing apparatus shown in FIG. 8; FIG.

12 is a plan view of an adjustment directing nozzle;

Figure 13 is a side cross-sectional view showing a spray dyeing apparatus according to another embodiment of the present invention.

In view of the drawbacks of the conventional dyeing apparatus described above, the present invention provides an improved air flow spray dyeing apparatus.

[Purpose of invention]

Accordingly, it is an object of the present invention that the fabric guide is no longer constrained by the small diameter of the conventional fabric guide tube and the small cross section of the driving nozzle and thus the fabric guide is effectively eliminated from the wear of the fabric and the fold line problem of the fabric. There is no driving nozzle installed at the front upstrip opening of the tube, and a substantially flat support plate with sufficient width is provided to allow the fabric guide tube to substantially straighten its width during movement through the fabric guide tube. It is to provide an air flow spray dyeing device installed on the floor.

It is another object of the present invention to provide a plurality of spaced directing nozzles disposed at the bottom of the fabric guide tube to generate a high velocity air stream under the fabric for the fabric guide tube to float, support and move the fabric. It is to provide a spray dyeing apparatus comprising a plurality of spray nozzles disposed on top of the fabric guide tube to apply a liquid dye sprayed on the fabric to the nozzle and a small amount of dye effectively. Therefore, there is provided a dyeing apparatus of low bath ratio, low energy consumption and low pollution.

It is another object of the present invention to induce vigorous vibrations on the fabric due in part to the impact of the air stream on the fabric and in part due to the pressure difference between the lower and upper sides of the fabric induced by the high velocity air stream. And a large number of high velocity air streams to act underneath the fabric which is substantially fully unrolled so that this vibration enhances the penetration and diffusion of the dye into the fabric and thus significantly increases the degree of exhaustion. It is to provide a spray dyeing apparatus for generating a.

It is a further object of the present invention that the fabric acts on the high velocity air stream such that the high velocity air stream is generated underneath the fabric which is fully stretched and the low pressure zone flows out of the fabric in both width directions to maintain the complete stretch of the fabric. It is to provide a spray dyeing apparatus formed under the fabric to be.

It is a further object of the present invention that a spray dyeing device is produced underneath the fabric to cause intense vibrations of the fabric in which the high speed air stream not only dyes with a small amount of high concentration dye but also effectively removes impurities or contaminants from the fabric. To provide.

Still another object of the present invention is to provide a spray dyeing apparatus for injecting a liquid such as dye or fresh water into the top and bottom of the fabric in order to effectively dye or rinse the heavy fabric.

[Invention Overview]

To achieve the above object, fabric storage tank, fabric guide tube, distribution tube, multiple directing nozzles, flat support plate, spray nozzle, dye pump, blower, fabric folding plate, fabric driving wheel, gas / liquid separation net, heat exchanger A spray dyeing apparatus is provided, comprising a filter and other tubing and control elements, wherein the fabric storage tank and fabric guide tube are connected to each other to define a continuous loop for the fabric. Dye and air are pressurized by pumps and blowers and transported to fabric guide tubes by spray nozzles and directing nozzles to dye the fabric. The fabric is moved through the fabric guide tube by the air stream generated by the directing nozzle. The improved spray dyeing apparatus includes a substantially flat support provided at the bottom of the fabric guide tube having a width sufficient to allow the fabric width to extend substantially completely during travel through the fabric guide tube. The directing nozzle is installed on the support plate in spaced form to generate a high velocity air stream in the downstream direction, which is defined above the support plate for the fabric to float on the support plate and to move in the downstream direction. A spray nozzle is provided on top of the fabric guide tube to spray dye onto the stretched fabric. The high velocity air stream generated by the directing nozzle also forms a low pressure zone under the fabric to induce intense vibrations in the fabric at the pressure difference between the air stream and the top and bottom of the fabric. Therefore, a dyeing apparatus of high efficiency, low power consumption, low bath ratio and low pollution is provided.

Referring to Figure 8 showing the cross-section of the spray dyeing apparatus according to the present invention, the spray dyeing apparatus of the present invention is a fabric storage tank (1), fabric guide tube (11), distribution tube (12), directing nozzle (121), support plate (13), spray nozzle (14), dye pump (15), blower (16), fabric folding plate (17), fabric driving wheel (18), inner perforated plate or net (19), Dye heat exchanger 154, filter 153, dye supply inlet 1511, dye return tube 151, dye conveyor tube 152, air return tube 161, air conveyor tube 162, second dye Conveyor or bypass tube 165 and dye flow control valve 166.

Referring to Figures 8-10, the fabric storage tank 1 has an arrangement of circular tubes for high temperature and high pressure dyeing operations, but for regular temperature regular pressure the arrangement allows movement within the fabric. It generally has an O-shaped, U-shaped or inverted L-shaped structure for minimizing the space occupied by the rectangular tube, preferably by occupying it with a low bath ratio dyeing apparatus. As shown in Fig. 8, the illustrated dyeing apparatus takes the arrangement of the O type cross section with the fabric storage tank 1 defined at the bottom of the O type arrangement. The fabric guide tube 11 is mounted on the fabric storage tank 1 extending in the same width in the coaxial direction perpendicular to the drawing plane of FIG. The fabric guide tube 11 is connected to the upstream inlet and the fabric storage tank 1 in communication with the transverse front end of the fabric storage tank 1 to define a circular closed loop for circulation of the dyed fabric indicated by reference 2 in the drawings. It has a downstream outlet 112 connected in communication with the transverse rear end. At the bottom of the fabric storage tank 1, a dye return tube 151 is provided. An access hole 3 and a fabric driving wheel 18 are installed at the transverse front end of the fabric storage tank 1 substantially in the shared area between the fabric storage tank 1 and the fabric guide tube 11. do. The fabric 2 having a given width is driven by the fabric driving wheel 18 and moved from the fabric storage tank 1 to the fabric guide tube and dyed there. The fabric guide tube 11 is a flat bottom or bottom surface having a width (axial length) that allows the fabric 2 to fully unfold in the width direction when the fabric 2 is driven to move through the fabric guide tube 11. 13). The fabric guide tube 11 includes a plurality of spray nozzles 14 abutting the fabric 2 and positioned above the fabric guide tube to spray dye onto the fabric. The dispensing tube 12 is transversely rearward of the fabric storage tank 1 at the transverse front end of the fabric storage tank 1 so that air is distributed along the length of the fabric guide tube 11 and the length extending in the axial direction of the dyeing apparatus. It is installed under the bottom plate 13 of the fabric guide tube 12 having a width corresponding to the length of the fabric guide tube 12 defined by the dimensions to the end. Preferably, the bottom plate 13 constitutes a partition wall between the fabric guide tube 11 and the distribution tube 12. The plurality of directing nozzles 121 are formed on the bottom plate 13 extending in the length of the distribution tube 12 and spaced at a predetermined distance in the width direction of the distribution tube 12. A plurality of directing nozzles 121 are disposed in direct contact with the downstream to provide an air stream beneath the fabric 2 in the downstream direction so that air is supplied through the distribution tube 12. At the connection 113 between the downstream outlet 112 of the fabric guide tube 11 and the transverse rear end of the fabric storage tank 1, the fabric folding plate 17 pivots to the wall 114 of the connection 113. Is installed on. The fabric folding plate 17 is controlled by a known means which allows the fabric 2 to reciprocate rapidly with respect to the pivot so that it is repeatedly and periodically contacted with the fabric 2 during the movement of the fabric 2 so that the fabric 2 is the fabric guide tube 11. ) To the fabric storage tank (1) to be folded neatly and neatly while moving. The fabric storage tank (1) contains a liquid to allow the dye (2) to fall through the liquid / air separation network (19) by gravity when the fabric (2) carrying the dye enters the fabric storage tank (1). Liquid / air separation installed at the bottom of the fabric storage tank 1 having a space therebetween to be retained in the air separation network 19 and collected in the space between the net 19 and the bottom of the fabric storage tank 1 A net or perforated plate 19 is installed. The dye thus collected is drawn out by the dye pump 15 through the dye return tube (151). The dye is pumped through filter 153 and heat exchanger 154 to remove unwanted particles or impurities from the dye and to keep the dye at a given temperature for dyeing. The dye thus treated is conveyed to the spray nozzle 14 through the dye conveyor tube 152.

Preferred embodiments of the invention are shown in FIGS. 8 and 9. While the support plate 13 defines a support surface of a flat structure having a sufficient width so that the fabric can be unfolded to increase dyeing efficiency, in fact, the support plate 13 does not require a flat structure and is merely a dyeing operation provided by the present invention. To achieve this, a support plate 13 having a width sufficient to allow the fabric to fully unfold is required. For example, another embodiment of the present invention is shown in FIG. 13, wherein the support plate 13 takes the form of an arc which is substantially concentric with respect to the circular arrangement of the dyeing apparatus or the textile storage tank 1, and this embodiment. The width of the bottom plate 13 is sufficient to allow the fabric width to be completely stretched. Likewise, the placement of the bottom plate with a smooth and gradual change in overall appearance also provides the efficiency as shown in the embodiment of FIGS. 8 and 13.

As described above, in the dyeing cycle of the spray dyeing apparatus according to the invention, the fabric 2 is pulled upward from the fabric storage tank 1 by the fabric driving wheel 18 and then the fabric guide tube 11. Is carried on. The dye is guided to the pump 15 via the dye return tube 151 and then pressurized by the pump 15 to be conveyed to the dye conveyor tube 152 via the filter 153 and the heat exchanger 154 and to the fabric. A spray nozzle 14 is placed above the fabric guide tube 11 to be sprayed onto the fabric 2 which is moved through the guide tube 11. The dye is absorbed and transported by the fabric 2 facing the outlet 112 of the fabric guide tube 11 and returned to the fabric storage tank 1. The dye returning to the fabric storage tank (1) passes through the liquid / air separation network (19) and is then collected at the bottom of the fabric storage tank (1) and this dye is again pumped via the dye return tube (151). ) To form a continuous dye circulation loop. The dye return pump 151 is provided with a dye supply inlet 1511 for replenishing the dye or adding other textile treatment or textile treatment agents to the dye circulation loop.

The fabric storage tank 1 also has a perforated top wall spaced apart from the liquid / air separator 19 to define the interior space of the fabric storage tank 1 containing the fabric. The perforated top wall also defines an interior spaced apart from the lower side of the dispensing tube 12 and when the downstream air stream is directed to the downstream outlet 112 of the fabric guide tube 11 and to the fabric storage tank 1. Air separated from the dye or flowing from the directing nozzle 121 is collected and directed to the blower 16 by the air return tube 161. The air is then pressurized by the blower 16 and carried through the heat exchanger 154 to be transferred to the distribution tube 12 via the air conveyor tube 162. As described above, the pressurized air delivered to the dispensing tube 12 via the air conveyor tube 162 is distributed over a plurality of directing nozzles 121 to produce a downstream air stream flowing under the fabric 2. The bottom plate 13 of the fabric guide tube 11 also provides for restraining the direction of the air stream and " rebound " the portion of the air stream that impinges on the fabric 2 and on the flat bottom plate 13 Reflected towards the bottom plate 13 by the fabric 2 in order to support 2) more effectively.

The bypass tube 165 is installed between the dye conveyor tube 152 and the air conveyor tube 162. The valve 155, the valve 166 and the valve 163 are respectively installed in the dye conveyor tube 152, the bypass tube 165 and the air conveyor tube 162 so that the circulation of the fluid in the dye conveyor tube 152 can be achieved. Optionally, it is directed to the air conveyor tube 162 via the bypass tube 165. The placement of the bypass tube 165 is to provide a more effective dyeing operation for the fabric 2, especially for fabrics having a larger unit weight, such as fabrics having a unit weight of 600 g / yard.

The arrangement of the bypass tube 165 for partially guiding the fluid circulating inside the dye conveyor tube 152 to the directing nozzle 121 of the distribution tube 12 via the air conveyor tube 162 is a dye return tube. 151, pump 15, filter 153, heat exchanger 154, dye conveyor tube 152, spray nozzle 14, fabric guide tube 11 and the fabric storage tank (1) circulation loop In order to perform an effective cleaning operation with fresh water or other suitable cleaning agent instead of a dye and to be sprayed onto the fabric at the top of the fabric (2) to carry out such cleaning. Fresh water is also directed to the dispensing tube 12 for injection into the lower side of the fabric 2 through the directing nozzle 121. This improves the removal of unnecessary particles or impurities from the fabric 2.

The fluid circulation of the dyeing apparatus of the present invention described above is substantially the same as a conventional dyeing apparatus.

It should be particularly noted that the directing nozzle 121 disposed on the bottom plate 13 of the fabric guide tube 11 can also be replaced by nozzles of other designs. According to the present invention, the preferred structure of the directing nozzle is shown in FIGS. 11 and 12, which includes a movable blade 12101, a link bar 122, and a driving rod 123. The movable blade 12101 is pivotally housed in a bushing 1101 fixed in an opening formed in the bottom plate 13 of the fabric guide tube 11 to have the blade 12101 to define the edge and spacing of the opening. With two opposing pivot pins 12102, the spacing is adjustable by rotating the blade 12101 relative to the base plate 13. The adjustable gap is provided as a directing nozzle. One of the pivot pins 12102 of the movable blade 12101 extends outwardly to engage one end of the link bar 122. The other end of the link bar 122 is pivoted on the driving rod 123 extending in the direction of the fabric guide tube 11. By connecting the link bars 122 of the directing nozzles 121 to the driving rods 123, the directing nozzles 121 are simultaneously adjusted as the driving rods 123 move to rotate the blades 12101. The driving rod 123 is connected to an actuator such as a hydraulic actuation system, an electric motor actuation system or another power actuation system to rotate the blade 12101 to control the size of the nozzle 121 and adjust the ejection from the nozzle 121. To drive. 6 and 7 show a more detailed view of the nozzle. A more detailed description of the nozzle can be obtained from Taiwan Utility Model 89941, Chinese Utility Model ZL 93209236.5, Chinese Patent 93105099.5 and US Patent 5,381,678.

A feature of the present invention is a fabric guide having a narrow nozzle at the upstream inlet suitable for a conventional design such as shown in A11 and A12 of FIGS. 1-3 and a narrow passage of a conventional design through which the fabric shown in A22 of FIGS. 3 and 4 passes. It is in the tube (11). The fabric guide tube 11 of the present invention includes a flat and wide bottom (support plate) extending from the upstream inlet 111 to the downstream outlet 112 and having a width sufficient to fully stretch the fabric in the width direction. The fabric is moved through the fabric guide tube with the fabric fully unfolded and thus more effective dyeing is carried out where the dye is sprayed from the spray nozzle 14 located above the fabric 2 so that the fabric 2 is full width at the top of the fabric. Make sure to fall evenly on As the fabric 2 moves through the fabric guide tube 11, the dye sprayed on top of the fabric 2 passes through the thickness of the fabric 2 due to the capillary action and gravity of the fibers constituting the fabric 2. Penetrates. Dyeing of the fabric 2 takes place due to the penetration of the dye through the fabric 2.

The lower side of the fabric 2 is floated over the bottom (support plate) 13 of the fabric guide tube 11 and received an air stream from the directing nozzle 121 to be directed downstream by impacting with the air stream. The high speed air stream below the fabric 2 also forms a low pressure state with a lower pressure than the air stream over the fabric 2 with a much lower air flow rate. The pressure difference between the lower and upper sides of the fabric 2 is generally unstable due to the air stream from the directing nozzle 121 which is not precisely and uniformly distributed along the length of the fabric guide tube 11 and thus As the cloth passes through the fabric guide tube 11, the fabric 2, which is fully stretched, is subjected to periodic and violent up and down vibrations. The higher pressure on the fabric 2 also causes the air stream to flow partially in the width direction of the fabric 2 (ie in the axial direction of the dyeing apparatus), forming a confinement in the air stream below the fabric 2. This widthwise flow of air improves and maintains the spreading in the width direction of the fabric 2 as it travels through the fabric guide tube 11.

When the fabric 2 exits the fabric guide tube 11 at the downstream outlet 112, it is pivoted in the fabric guide tube 11 at the outlet 112 and controlled to reciprocate and vibrate quickly against the pivot and the fabric 2 When moved to this fabric storage tank 1 a large area is subjected to a reciprocating movement of the fabric folding plate 17 arranged to a size that acts in contact with the fabric 2. Vibration of the plate 17 relative to the pivot causes the plate 17 to contact the fabric 2 in a periodic fashion and the contact coupling between the plate 17 and the fabric 2 causes the fabric to move in the opposite direction of movement. Fold so that a neatly folded arrangement of the fabric 2 is obtained when the fabric 2 moves into the fabric storage tank 1.

The dye carried by the fabric 2 to the fabric storage tank 1 is separated by gravity through the liquid / air separation network 19 and collected at the bottom of the fabric storage tank 1. The air moved together with the fabric 2 from the fabric guide tube 11 to the fabric storage tank 1 flows through the upper perforated plate of the fabric storage tank 1 and is collected and conveyed to the blower 16. With the exception of the minimal air that flows to the front side of the dyeing apparatus for pressure balancing purposes, the air is collected and recycled by the blower 16 via the air conveyor tube 161. This air is compressed and sent to the dispensing tube 12 for blowing out through a directing nozzle 121 for directing the fabric 2 downstream.

According to Bernoulli's law, which explains that the higher the velocity of the fluid, the lower the static pressure of the fluid, the high velocity air stream underneath the fabric 2 has a lower pressure than the air stream above the fabric 2 Form the high speed low pressure zone below. The pressure difference between the upper and lower sides of the fabric along with the gravity of the fabric 2 and the dyes carried by it tends to direct the fabric 2 towards the high velocity air stream zone. This causes a tight contact between the fabric 2 and the high velocity air stream and thus increases the momentum transferred from the air stream to the fabric 2 to increase the kinetic energy of the fabric 2. However, stream lines of the air stream below the fabric 2 restrict the movement of the fabric towards the bottom 13 of the fabric guide tube 11 and thus support the fabric 2 to float on the air stream. The fabric 2 is prevented from coming into direct contact with the bottom 13 of the fabric guide tube 11. When a force is applied such that the fabric 2 becomes closer to the bottom 13 by the pressure difference across the fabric 2, the air stream is temporarily stopped by the increased shear force between the fabric 2 and the air stream. Or "dragged". The energy of the air stream is then converted into resistance to the movement of the fabric 2 towards the bottom 13 and the fabric 2 bounces off the bottom 13. This causes periodic vibration (up and down movement) of the fabric 2 inside the fabric guide tube 11. The frequency of the vibrating fabric 2 of course depends on the unit length weight of the fabric and the momentum delivered by the air stream, as well as other factors known to those skilled in the art of hydrodynamics. This vibration is therefore controlled at least in part by adjusting the opening size of the directing nozzle 121 or by changing the power input to the blower 16.

Periodic vibration of the fabric involves the transfer or transformation of a large amount of energy that causes the fibers of the fabric 2 to loosen, thus enhancing the penetration of the dye into the fabric 2 and increasing the absorption and diffusion of the dye into the fabric 2 and In addition to providing a dyeing operation with a small amount of dye, high concentration, high efficiency, low energy consumption, low bath ratio and low pollution, thereby increasing the moving speed of the fabric (2), the present invention provides a work efficiency of rinsing, washing, bleaching, etc. This helps to loosen the fibers in the fabric to improve the removal of unnecessary materials or impurities from the fabric, increasing the overall efficiency of the dyeing operation.

Although the preferred embodiments have been described for the purpose of illustrating the invention, it is apparent that changes and modifications in the preferred embodiments described in detail can be practiced without departing from the scope of the invention which is intended to be limited only by the appended claims. .

Claims (5)

A fabric storage tank and an axially extending fabric guide tube suitable for accommodating a constant width of the fabric to be treated axially and to be treated, wherein the fabric storage tank and the fabric guide tube are formed from the fabric storage tank. Connected to each other at the front and back sides, to define a continuous path that moves through the fabric guide tube to the front and back sides of the fabric guide tube, and then continuously to the fabric storage tank. In the fabric processing apparatus is in contact with the fluid, The fabric guide tube includes a bottom wall extending from the inlet side upstream inlet to the inlet side downstream of the fabric guide tube having a flat width sufficient to allow the fabric to fully extend in the width direction as it moves through the fabric guide tube. and, The fabric guide tube is adapted to receive the first fabric processing fluid from the first fabric processing fluid supply and to increase the penetration and diffusion of the first fluid into the fabric to allow the fabric to be efficiently processed by the first fluid. At least one spray nozzle installed over the top side of the fabric for spraying a first fluid onto the top side of the fabric substantially across the width of the fabric in a sprayed form of The bottom wall of the fabric guide tube is in direct contact with the second fluid supply via a second fluid conveyor tube for ejecting a high velocity stream of the second fluid into the fabric guide tube in the downstream direction below the bottom of the fabric. With a nozzle, The directing nozzles are spaced apart from each other at a distance in the direction of movement of the fabric, and the distances between adjacent directing nozzles establish a shear force therebetween and direct the stream of second fluid in a downstream direction to impact the fabric and carry the fabric downstream. Defining a support plate surface for constraining and guiding, The high velocity stream of the second fluid below the lower side of the fabric is in contact with the directing nozzles spaced apart and the upper side of the fabric causing violent vibration to the fabric which repeatedly moves the fabric away from this bottom towards the bottom of the fabric guide tube. Forming a low pressure zone beneath the fabric having a pressure lower than the pressure on the opposing upper side of the fabric having a pressure difference between the lower sides, The pressure difference directs the fabric to a high velocity stream or to a second fluid such that energy transfer therebetween is efficient to increase the rate of movement of the fabric, The fabric is supported to float over the bottom of the fabric guide tube by a high speed stream of a second fluid exiting the directing nozzle so that it can be quickly moved through the fabric guide tube and stretched in the width direction, The fabric is substantially completely unfolded in the width direction due to the wide bottom wall of the fabric guide tube, and thus the fabric processing apparatus is made of the fabric with high efficiency, low energy consumption, low bath ratio and low pollution. The method of claim 1, Each directing nozzle is formed in the bottom wall of the fabric guide tube so that the fluid is in contact with the second fluid conveyor tube to receive the second fluid from the second fluid supply; A movable blade pivoted to the opening to define the fluid passageway and rotatable relative to the opening between the open position and the plurality of intermediate positions through the closed position to adjust the cross-sectional size of the fluid passage, A driving rod in which the movable blade is pivotally engaged by the link member such that the movable blade of the directing nozzle is adjusted simultaneously by moving the driving rod, And a control device installed on the driving rod for adjusting the directing nozzle and thus controlling the movement of the driving rod to adjust the high speed stream ejected from the directing nozzle. The method of claim 1, The fabric guide tube includes a fabric folding plate pivotally supported inside the fabric folding plate at the downstream outlet to be reciprocable between the acting position and the idle position, the fabric folding plate being fabric fabric downstream of the fabric guide tube. A fabric processing apparatus sized to engage the fabric when the folding plate is in the working position and the fabric is in the opposite direction to the movement of the fabric so that the fabric folds neatly when moving from the outlet to the fabric storage tank. The method of claim 1, The first fabric treatment fluid includes a liquid dye and the second fabric treatment fluid includes air and the fabric storage tank passes through the net and separates from the fabric to allow liquid dye to be collected and transported back to the spray nozzle. A fabric processing apparatus comprising a liquid / air separation network positioned to receive and support the fabric exiting the downstream outlet. The method of claim 1, The second fluid supply is a blower that sends air to the directing nozzle, A heat exchanger disposed between the blower and the directing nozzle for adjusting the air temperature, And a second fluid return tube connected between the blower and the fabric storage tank for directing air to the blower for delivery to the directing nozzle and collecting and receiving the fabric and moving air from the fabric guide tube to the fabric storage tank.