CN111334949A

CN111334949A - Dyeing method of textile fabric

Info

Publication number: CN111334949A
Application number: CN202010154234.7A
Authority: CN
Inventors: 沈墅; 周鹏
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-07
Filing date: 2020-03-07
Publication date: 2020-06-26

Abstract

The invention belongs to the technical field of textile machinery, in particular to a dyeing method of textile fabric, wherein a spraying device used in the dyeing method comprises a rack; a pair of vertical plates is fixedly connected to the frame, and a top plate is fixedly connected to the tops of the vertical plates; a winding roller and a driving motor are sequentially arranged on the left side of the vertical plate, and the driving motor is used for driving the winding roller to rotate; the winding roller is provided with a wound fabric; the right side of the frame is rotatably connected with a cloth releasing roller; the bottom of the top plate is connected with a pair of spraying units in a sliding manner at a position close to the vertical plate; the middle part of the frame is fixedly connected with a pair of brackets, and the brackets are rotatably connected with a pair of rollers which are arranged up and down; the fabric is twisted 180 degrees after passing through the roller on the bracket at one side and then passes through the roller on the bracket at the other side; according to the invention, the roller is matched with the fabric twisted by 180 degrees, so that the two sides of the fabric can be conveniently and fully dyed, and the dyeing efficiency of the fabric is improved.

Description

Dyeing method of textile fabric

Technical Field

The invention belongs to the technical field of textile machinery, and particularly relates to a dyeing method of a textile fabric.

Background

Textile fabrics include weft-knitted fabrics and warp-knitted fabrics according to the weaving method. Weft-knitted fabrics are usually made from low-stretch polyester yarns or special-shaped polyester yarns, nylon yarns, cotton yarns, wool yarns and the like as raw materials by knitting flat stitch, variable flat stitch, rib flat stitch, double rib flat stitch, jacquard weave, terry weave and the like on various weft knitting machines.

Ancient Chinese textile and printing and dyeing technology has a very long history, and ancient people have understood local materials in the early original society period in order to adapt to climate change, use natural resources as raw materials for textile and printing and dyeing and manufacture simple hand textile tools. Clothes, airbags and curtain carpets in daily life are products of textile and printing technologies to date.

The dyeing method of the prior cloth mainly comprises the following steps:

1. pad dyeing: the pad dyeing is to dip the textile fabric in dye liquor for a short time, then roll the textile fabric with a roller, squeeze the dye liquor into the gaps of the texture of the textile fabric, remove the redundant dye liquor, and evenly distribute the dye on the textile fabric, wherein the dye dyeing is (or mainly) completed in the subsequent steaming or baking treatment process. The method is characterized in that: the continuous dyeing process has high production efficiency, is suitable for dyeing large-batch textile fabrics, but the dyed objects have larger tension, and are usually used for dyeing woven fabrics, and tows and yarns are sometimes also dyed by pad dyeing.

2. Dip dyeing: the textile is soaked in the dye liquor, and the dye is used for dyeing the fiber and is fixed in the fiber after a certain period of time. The method is characterized in that: the dyeing method is suitable for dyeing textiles in various forms; the dye consumption is high, and the pollution is serious; the production efficiency is low due to intermittent production; the equipment is simpler and the operation is easier. The dyeing effect of the dye liquor on the textile silk is influenced by temperature, and the difference of the dyeing quality of the textile silk is larger due to larger temperature change in four seasons. In order to enable the fabric to obtain an ideal appearance, the fabric needs to be sprayed, and the coating is used for coloring the textile fabric, so that the fabric with different colors is created, and the purchasing desire of consumers can be better attracted.

The existing textile fabric spraying equipment is poor in spraying effect, dye spraying cannot well infiltrate and adhere to the fabric, meanwhile, only single-side spraying can be performed on the fabric, the spraying and drying efficiency is low, and the spraying and drying equipment is not beneficial to large-scale production of factories.

Disclosure of Invention

The invention provides a dyeing method of a textile fabric, which aims to make up the defects of the prior art and solve the problems that the spraying effect of the existing textile fabric spraying equipment is poor, dye spraying cannot well infiltrate and adhere to the fabric, meanwhile, the fabric can only be sprayed on one side, the spraying and drying efficiency is low, and the large-scale production of a factory is not facilitated.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a dyeing method of a textile fabric, which comprises the following steps:

s1, pretreating the fabric in 0.5-0.7 mol/L2-hydroxyethylamine solution at the bath ratio of 1:15-25 at 55-60 ℃ for 0.5-1h to obtain a product A;

s2, rinsing the product A with deionized water until the pH value is 6.5-7, and the rinsing temperature is 40-50 ℃, and after the product B is obtained, putting the cloth into warm water to soak for 10-20 minutes;

s3, taking out the product B obtained in the step S2, dehydrating to be half-dry, fixing in a spraying device, spraying a layer of primer,

then diluting the coating, wherein the ratio of the pigment to the diluent is 7:3, putting the prepared dye into a spraying device for atomization, putting the fabric into the spraying device after the primer is dried, and spraying the atomized dye on the fabric;

s4, after the paint is dried in the air, putting the paint into warm water for rinsing, and after rinsing, dehydrating and drying the paint in the air to finish the process;

the spraying device comprises a frame; the stand is fixedly connected with a pair of vertical plates, and the tops of the vertical plates are fixedly connected with a top plate; a winding roller and a driving motor are sequentially arranged on the left side of the vertical plate, and the driving motor is used for driving the winding roller to rotate; the winding roller is provided with a wound fabric; the right side of the rack is rotatably connected with a cloth releasing roller; the fabric released by the cloth releasing roller penetrates through the vertical plate and then is wound up by the winding roller; the bottom of the top plate is connected with a pair of spraying units in a sliding mode at a position close to the vertical plate, and the spraying units slide back and forth to be used for spraying dye on the fabric; the middle part of the rack is fixedly connected with a pair of brackets, and the brackets are positioned between the two spraying units; a pair of rollers which are arranged up and down are rotatably connected to the bracket; the fabric is twisted for 180 degrees after passing through the roller on the bracket on one side and then passes through the roller on the bracket on the other side; a drying unit for drying the fabric is arranged on the rack between the two brackets; the roller is matched with the fabric twisted by 180 degrees, so that the two sides of the fabric can be conveniently and fully dyed, and the dyeing efficiency of the fabric is improved; when the device is used, a whole roll of fabric is arranged on the cloth releasing roller, one end of the drawn fabric penetrates through the roller wheel on the bracket close to one side of the cloth releasing roller, then the fabric is twisted by 180 degrees, then the drawn fabric penetrates through the roller wheel on the bracket far from one side of the cloth releasing roller and then is wound on the winding roller, the winding roller is driven to rotate through the driving motor, then the cloth is driven to rotate by the cloth releasing roller to slowly pass through the spraying unit, atomized dye is sprayed by the spraying unit to dye the fabric, and the dyed fabric is dried through the drying unit, so that the dyeing efficiency of the fabric is improved; the running roller guides the fabric to rotate reversely, so that the fabric on the front surface and the back surface is fully dyed, and the dyeing efficiency of the fabric is improved.

Preferably, the spraying unit comprises a sliding block, the sliding block is connected with the top plate in a sliding mode, the sliding block is controlled to slide through an electric push rod, and the electric push rod is connected with a power supply through a controller; the bottom of the sliding block is fixedly connected with a spherical spray head, the bottom of the spray head is provided with a group of spray holes, and the spray holes are communicated with high-pressure dye through pipelines; the spray holes are arranged along the radius direction of the spray head, and the distance between every two adjacent spray holes is gradually reduced from the right to the bottom to the top, so that the dye sprayed by the spray head is uniformly sprayed on the fabric, the dyeing efficiency of the fabric is further improved, and the dyeing quality of the fabric is improved; through electric putter control shower nozzle back-and-forth reciprocating sliding, drive the shower nozzle even with the dyestuff spraying on the cloth surface, the shower nozzle that the shower nozzle radius direction was arranged is followed in the cooperation, and supreme reduction gradually about the interval between the adjacent orifice for the surface fabric through the shower nozzle within range evenly receives the dyestuff, and it is inhomogeneous that the surface fabric of keeping away from shower nozzle one side sprays the dyestuff to reduce, further improves the dyeing efficiency of cloth, increases the dyeing quality of surface fabric.

Preferably, the upper part of the spray head is fixedly connected with a hemispherical protective cover, the utilization efficiency of dye is increased through the protective cover, and the dyeing efficiency of the cloth is further improved; the side wall of the protective cover is internally provided with a vent hole, and the vent hole is communicated with a high-pressure air source through a pipeline and a valve; the inner wall of the protective cover is provided with a group of air injection holes communicated with the vent holes, and the air injection holes are inclined downwards; the high-speed airflow ejected by the air ejecting holes forms an air curtain, so that the dye is prevented from being adhered to the inner wall of the protective cover, the utilization efficiency of the dye is further increased, and the dyeing efficiency of the cloth is improved; through the protection casing of shower nozzle cooperation and ball-type, reduce the loss of dyestuff spraying, increase the utilization efficiency of dyestuff, let in highly-compressed air in to the air vent through opening the pneumatic valve, because the fumarole slope is downward, make highly-compressed air behind the fumarole blowout, form the air curtain that flows fast in the position of the tight inner wall of protection casing subsides, and then reduce the dyestuff adhesion at the protection casing inner wall, the waste of less dyestuff, simultaneously reduce to drip on the surface fabric behind the too much dyestuff of protection casing accumulation, cause the pollution, will hang down the dyeing quality, thereby further improve the dyeing efficiency of cloth.

Preferably, an exhaust pipe is arranged at the position, corresponding to the spraying unit, of the top of the rack and is fixedly connected with the vertical plate; the bottom of the exhaust pipe is communicated with the exhaust fan through a pipeline, and the top of the exhaust pipe is provided with a funnel-shaped exhaust hopper; the bottom of the fabric is exhausted through the air exhaust hopper, so that the fabric is further ensured to fully absorb the dye, the dyeing consistency of the fabric is ensured, and the dyeing efficiency of the fabric is further improved; the exhaust pipe is exhausted through the exhaust fan, so that negative pressure is formed in the exhaust hopper, air above the fabric is exhausted through the exhaust pipe after passing through the fabric, the efficiency of dye spray adhesion on the fabric is increased, loss of dye is further reduced, the dyeing consistency of the fabric is guaranteed, and the dyeing efficiency of the fabric is further improved.

Preferably, a first gear and a second gear which are meshed with each other are rotatably connected in the exhaust pipe; a wind wheel is fixedly connected to a rotating shaft of the first gear; a wind shield is fixedly connected to a rotating shaft of the second gear; the wind wheel drives the wind blocking plate to rotate, so that the air exhaust speed of the air exhaust hopper is intermittently controlled, the shake of the fabric is increased, and the dyeing efficiency of the fabric is further improved; when the air extractor bleeds to the exhaust column, drive the wind wheel and rotate, the wind wheel rotates through a gear and No. two gears, and then drives and keep off the deep bead and rotate, keeps off the increase of the air current intermittent type nature in the control exhaust column when the deep bead rotates and reduces, and then makes the suction of air extraction fill to the surface fabric constantly change, cooperates the tensioning of wind-up roll to the surface fabric for the surface fabric vibration that rebounds constantly, and then increases the efficiency that the surface fabric absorbed the dyestuff, further improves the dyeing efficiency of cloth.

Preferably, a sliding pipe in the exhaust pipe above the first gear is connected with a filter screen for filtering residual dye, and the bottom of the filter screen is provided with a mandril; a sliding groove is formed in the top of the support close to one side of the winding roller, a bearing seat is connected in the sliding groove in a sliding mode, and the roller is rotationally connected with the bearing seat; the bottom of the bearing block is fixedly connected with a support rod, a lever is arranged at a position of the support corresponding to the support rod, the middle part of the lever is hinged with the support, and one end of the lever penetrates through the exhaust pipe and extends to the lower part of the ejector rod; the filter screen slides to drive the roller to vibrate, so that the dyeing efficiency of the cloth is further improved; because the deep bead rotates the air current that makes in the exhaust column constantly changes, and then makes the filter screen constantly slide from top to bottom in the exhaust column, and the filter screen drives ejector pin top and moves the lever for drive branch and bearing frame slide from top to bottom in the spout after the lever rotates, and then further drive the surface fabric vibration through the running roller, further increase the surface fabric and absorb the efficiency of dyestuff, improve the dyeing efficiency of cloth.

The invention has the following beneficial effects:

1. according to the dyeing method of the textile fabric, one end of the fabric is led out to penetrate through the roller on the bracket close to the cloth placing roller, then the fabric is twisted for 180 degrees, then the fabric penetrates through the roller on the bracket far from the cloth placing roller and then is wound on the winding roller, the winding roller is driven to rotate through the driving motor, then the cloth is driven to rotate by the cloth placing roller to slowly pass through the spraying unit, meanwhile, atomized dye is sprayed out of the spraying unit to dye the fabric, and the dyed fabric is dried through the drying unit, so that the dyeing efficiency of the fabric is improved; the running roller guides the fabric to rotate reversely, so that the fabric on the front surface and the back surface is fully dyed, and the dyeing efficiency of the fabric is improved.

2. According to the dyeing method of the textile fabric, the exhaust pipe is exhausted through the exhaust fan, so that negative pressure is formed in the exhaust hopper, air above the fabric is further exhausted by the exhaust pipe after passing through the fabric, the efficiency of dye spray adhering to the fabric is increased, the loss of dye is further reduced, the dyeing consistency of the fabric is ensured, and the dyeing efficiency of the fabric is further improved.

Drawings

The invention will be further explained with reference to the drawings.

FIG. 1 is a flow chart of a method of the present invention;

FIG. 2 is a front view of the spray coating device of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIG. 4 is an enlarged view of a portion of FIG. 2 at B;

FIG. 5 is an enlarged view of a portion of FIG. 2 at C;

in the figure: the device comprises a rack 1, a vertical plate 11, a top plate 12, a winding roller 13, a driving motor 14, a cloth releasing roller 15, a spraying unit 2, a support 3, a roller 31, a drying unit 16, a sliding block 21, a spray head 22, spray holes 23, a protective cover 24, a vent hole 25, a gas orifice 26, a gas extraction pipe 4, a gas extraction hopper 41, a first gear 42, a second gear 4, a wind wheel 44, a wind shield 45, a filter screen 46, a push rod 47, a sliding groove 35, a bearing seat 32, a support rod 33 and a lever 34.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 5, the dyeing method of the textile fabric of the present invention includes the following steps:

the spraying device comprises a frame 1; a pair of vertical plates 11 are fixedly connected to the frame 1, and a top plate 12 is fixedly connected to the tops of the vertical plates 11; a winding roller 13 and a driving motor 14 are sequentially arranged on the left side of the vertical plate 11, and the driving motor 14 is used for driving the winding roller 13 to rotate; the winding roller 13 is provided with a wound fabric; the right side of the frame 1 is rotatably connected with a cloth laying roller 15; the fabric released by the cloth releasing roller 15 penetrates through the vertical plate 11 and then is wound up by the winding roller 13; the bottom of the top plate 12 is connected with a pair of spraying units 2 in a sliding manner at a position close to the vertical plate 11, and the spraying units 2 slide back and forth to be used for spraying dye on the fabric; the middle part of the frame 1 is fixedly connected with a pair of brackets 3, and the brackets 3 are positioned between the two spraying units 2; a pair of rollers 31 which are arranged up and down are rotatably connected on the bracket 3; the fabric is twisted for 180 degrees after passing through the roller 31 on the bracket 3 at one side and then passes through the roller 31 on the bracket 3 at the other side; a drying unit 16 for drying the fabric is arranged on the frame 1 between the two brackets 3; the roller 31 is matched with the fabric twisted by 180 degrees, so that the two sides of the fabric can be conveniently and fully dyed, and the dyeing efficiency of the fabric is improved; when the device is used, a whole roll of fabric is arranged on the cloth releasing roller 15, one end of the drawn fabric penetrates through the roller 31 on the bracket 3 close to one side of the cloth releasing roller 15, then the fabric is twisted by 180 degrees, then the drawn fabric penetrates through the roller 31 on the bracket 3 far away from one side of the cloth releasing roller 15 and then is wound on the winding roller 13, the winding roller 13 is driven to rotate through the driving motor 14, then the cloth releasing roller 15 is driven to rotate, the fabric slowly passes through the spraying unit 2, meanwhile, atomized dye is sprayed out from the spraying unit 2 to dye the fabric, and the dyed fabric is dried through the drying unit 16, so that the dyeing efficiency of the fabric is improved; the running roller 31 guides the fabric to rotate reversely, so that the fabric on the front surface and the back surface is fully dyed, and the dyeing efficiency of the fabric is improved.

As an embodiment of the invention, the spraying unit 2 comprises a slide block 21, the slide block 21 is slidably connected with the top plate 12, the slide block 21 is controlled to slide by an electric push rod, and the electric push rod is connected with a power supply by a controller; the bottom of the sliding block 21 is fixedly connected with a spherical spray head 22, the bottom of the spray head 22 is provided with a group of spray holes 23, and the spray holes 23 are communicated with high-pressure dye through pipelines; the spray holes 23 are arranged along the radius direction of the spray head 22, and the distance between every two adjacent spray holes 23 is gradually reduced from the right to the bottom to the top, so that the dye sprayed by the spray head 22 is uniformly sprayed on the fabric, the dyeing efficiency of the fabric is further improved, and the dyeing quality of the fabric is improved; through electric putter control shower nozzle 22 back and forth reciprocating sliding, drive shower nozzle 22 even with dyestuff spraying on the cloth surface, the shower nozzle 22 that the cooperation was arranged along shower nozzle 22 radius direction, and supreme diminishing gradually about the interval between the adjacent orifice 23 for the surface fabric through shower nozzle 22 within range evenly receives the dyestuff, it is inhomogeneous that the surface fabric of keeping away from shower nozzle 22 one side sprays the dyestuff to reduce, further improves the dyeing efficiency of cloth, increases the dyeing quality of surface fabric.

As an embodiment of the invention, the upper part of the spray head 22 is fixedly connected with a hemispherical protective cover 24, and the utilization efficiency of the dye is increased through the protective cover 24, so that the dyeing efficiency of the cloth is further improved; a vent hole 25 is arranged in the side wall of the protective cover 24, and the vent hole 25 is communicated with a high-pressure air source through a pipeline and a valve; the inner wall of the protective cover 24 is provided with a group of air injection holes 26 communicated with the vent holes 25, and the air injection holes 26 are inclined downwards; the high-speed airflow ejected by the air ejecting holes 26 forms an air curtain, so that the dye is prevented from being adhered to the inner wall of the protective cover 24, the utilization efficiency of the dye is further increased, and the dyeing efficiency of the cloth is improved; through the protection casing 24 of shower nozzle 22 cooperation and ball-type, reduce the loss of dyestuff spraying, increase the utilization efficiency of dyestuff, let in high-pressure air in to air vent 25 through opening the pneumatic valve, because the fumarole 26 slope is downward, make high-pressure air behind the fumarole 26 blowout, form the air curtain of quick flow in the position of 24 tight inner walls that paste of protection casing, and then reduce the dyestuff adhesion at 24 inner walls of protection casing, the waste of less dyestuff, reduce simultaneously and drip on the surface fabric behind the 24 too much dyestuff of protection casing accumulation, cause the pollution, will hang down the dyeing quality, thereby further improve the dyeing efficiency of cloth.

As an embodiment of the invention, an exhaust pipe 4 is arranged at a position corresponding to the spraying unit 2 on the top of the frame 1, and the exhaust pipe 4 is fixedly connected with a vertical plate 11; the bottom of the exhaust pipe 4 is communicated with an exhaust fan through a pipeline, and the top of the exhaust pipe 4 is provided with a funnel-shaped exhaust hopper 41; the bottom of the fabric is exhausted through the air exhaust hopper 41, so that the fabric is further ensured to fully absorb the dye, the dyeing consistency of the fabric is ensured, and the dyeing efficiency of the fabric is further improved; air is pumped to the exhaust pipe 4 through the exhaust fan, negative pressure is formed in the air pumping hopper 41, air above the fabric is pumped away by the exhaust pipe 4 after passing through the fabric, the efficiency of dye spray adhesion on the fabric is increased, loss of dye is further reduced, the dyeing consistency of the fabric is guaranteed, and the dyeing efficiency of the fabric is further improved.

As an embodiment of the present invention, a first gear 42 and a second gear 43 which are engaged with each other are rotatably connected to the exhaust pipe 4; a wind wheel 44 is fixedly connected to a rotating shaft of the first gear 42; a wind shield 45 is fixedly connected to a rotating shaft of the second gear 43; the wind wheel 44 drives the wind shield 45 to rotate, so that the air extraction speed of the air extraction hopper 41 is intermittently controlled, the vibration of the fabric is increased, and the dyeing efficiency of the fabric is further improved; when the air extractor bleeds to exhaust column 4, drive wind wheel 44 and rotate, wind wheel 44 rotates through a gear 42 and No. two gears 43, and then drive deep bead 45 and rotate, the increase of the air current intermittent type nature in the control exhaust column 4 when deep bead 45 rotates with reduce, and then make the suction of air extraction fill 41 to the surface fabric constantly change, cooperation wind-up roll 13 is to the tensioning of surface fabric, make the surface fabric vibration of constantly rebounding, and then increase the efficiency that the surface fabric absorbs the dyestuff, further improve the dyeing efficiency of cloth.

As an embodiment of the invention, a filter screen 46 for filtering residual dye is connected to a sliding pipe in the exhaust pipe 4 above the first gear 42, and a top rod 47 is arranged at the bottom of the filter screen 46; a sliding groove 35 is formed in the top of the bracket 3 close to one side of the winding roller 13, a bearing seat 32 is connected in the sliding groove 35 in a sliding mode, and the roller 31 is rotationally connected with the bearing seat 32; the bottom of the bearing block 32 is fixedly connected with a support rod 33, a lever 34 is arranged at a position of the support 3 corresponding to the support rod 33, the middle part of the lever 34 is hinged with the support 3, and one end of the lever 34 penetrates through the exhaust pipe 4 and extends to the lower part of the ejector rod 47; the filter screen 46 slides to drive the roller 31 to vibrate, so that the dyeing efficiency of the cloth is further improved; because the wind shield 45 rotates and makes the air current in the exhaust column 4 constantly change, and then make filter screen 46 constantly slide from top to bottom in the exhaust column 4, filter screen 46 drives ejector pin 47 and pushes up lever 34 for lever 34 rotates the back and drives branch 33 and bearing frame 32 and slide from top to bottom in spout 35, and then further drives the surface fabric vibration through running roller 31, further increases the efficiency that the surface fabric absorbs the dyestuff, improves the dyeing efficiency of cloth.

When the device is used, a whole roll of fabric is arranged on the cloth releasing roller 15, one end of the drawn fabric penetrates through the roller 31 on the bracket 3 close to one side of the cloth releasing roller 15, then the fabric is twisted by 180 degrees, then the drawn fabric penetrates through the roller 31 on the bracket 3 far away from one side of the cloth releasing roller 15 and then is wound on the winding roller 13, the winding roller 13 is driven to rotate through the driving motor 14, then the cloth releasing roller 15 is driven to rotate, the fabric slowly passes through the spraying unit 2, meanwhile, atomized dye is sprayed out from the spraying unit 2 to dye the fabric, and the dyed fabric is dried through the drying unit 16, so that the dyeing efficiency of the fabric is improved; the roller 31 guides the fabric to rotate reversely, so that the fabric on the front side and the back side is fully dyed, and the dyeing efficiency of the fabric is improved; the electric push rod controls the spray heads 22 to slide back and forth in a reciprocating manner, so that the spray heads 22 are driven to uniformly spray the dye on the surface of the fabric, the spray heads 22 arranged along the radius direction of the spray heads 22 are matched, and the distance between the adjacent spray holes 23 is gradually reduced from the right to the top, so that the fabric passing through the range of the spray heads 22 uniformly receives the dye, the uneven dye spraying of the fabric far away from one side of the spray heads 22 is reduced, the dyeing efficiency of the fabric is further improved, and the dyeing quality of the fabric is improved; the spray head 22 is matched with the spherical protective cover 24, so that the loss of dye spray is reduced, the utilization efficiency of dye is increased, high-pressure air is introduced into the vent hole 25 by opening the air valve, and the high-pressure air is sprayed out through the air spraying holes 26 due to the fact that the air spraying holes 26 are inclined downwards, a fast flowing air curtain is formed at the position, close to the inner wall, of the protective cover 24, so that the dye is prevented from being adhered to the inner wall of the protective cover 24, the waste of the dye is reduced, meanwhile, the phenomenon that the protective cover 24 drips on fabric after excessive dye is accumulated is reduced, the pollution is caused, the dyeing quality is low, and the dyeing efficiency of the; the exhaust pipe 4 is exhausted through the exhaust fan, so that negative pressure is formed in the exhaust hopper 41, air above the fabric penetrates through the fabric and then is exhausted by the exhaust pipe 4, the efficiency of dye spray adhesion on the fabric is increased, the loss of dye is further reduced, the dyeing consistency of the fabric is ensured, and the dyeing efficiency of the fabric is further improved; when the air extractor extracts air from the air extraction pipe 4, the wind wheel 44 is driven to rotate, the wind wheel 44 rotates through the first gear 42 and the second gear 43, the wind blocking plate 45 is driven to rotate, the intermittent increase and decrease of the air flow in the air extraction pipe 4 are controlled when the wind blocking plate 45 rotates, the suction force of the air extraction hopper 41 on the fabric is continuously changed, the fabric is tensioned by the winding roller 13, the fabric is continuously rebounded and vibrated, the dye absorption efficiency of the fabric is increased, and the dyeing efficiency of the fabric is further improved; because the wind shield 45 rotates and makes the air current in the exhaust column 4 constantly change, and then make filter screen 46 constantly slide from top to bottom in the exhaust column 4, filter screen 46 drives ejector pin 47 and pushes up lever 34 for lever 34 rotates the back and drives branch 33 and bearing frame 32 and slide from top to bottom in spout 35, and then further drives the surface fabric vibration through running roller 31, further increases the efficiency that the surface fabric absorbs the dyestuff, improves the dyeing efficiency of cloth.

The front, the back, the left, the right, the upper and the lower are all based on the figure 2 in the attached drawings of the specification, according to the standard of the observation angle of a person, the side of the device facing an observer is defined as the front, the left side of the observer is defined as the left, and the like.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A dyeing method of textile fabric is characterized in that: the method comprises the following steps:

s3, taking out the product B obtained in the step S2, dehydrating to be half-dry, fixing the product B in a spraying device, spraying a layer of primer, diluting the paint, wherein the ratio of the pigment to the diluent is 7:3, putting the prepared dye into the spraying device for atomization, putting the fabric into the spraying device after the primer is dried in the air, and spraying the atomized dye on the fabric;

s3, the spraying device comprises a frame (1); a pair of vertical plates (11) is fixedly connected to the frame (1), and a top plate (12) is fixedly connected to the tops of the vertical plates (11); a winding roller (13) and a driving motor (14) are sequentially arranged on the left side of the vertical plate (11), and the driving motor (14) is used for driving the winding roller (13) to rotate; a winding fabric is arranged on the winding roller (13); a cloth releasing roller (15) is rotatably connected to the right side of the frame (1); the fabric released by the cloth releasing roller (15) penetrates through the vertical plate (11) and then is wound up by the winding roller (13); the bottom of the top plate (12) is connected with a pair of spraying units (2) in a sliding mode at a position close to the vertical plate (11), and the spraying units (2) slide back and forth to be used for spraying dye on the fabric; the middle part of the rack (1) is fixedly connected with a pair of brackets (3), and the brackets (3) are positioned between the two spraying units (2); a pair of rollers (31) which are arranged up and down are rotatably connected to the bracket (3); the fabric is twisted for 180 degrees after passing through the roller (31) on the bracket (3) at one side and then passes through the roller (31) on the bracket (3) at the other side; a drying unit (16) for drying the fabric is arranged on the rack (1) between the two brackets (3); through the cooperation of the roller (31) and the 180-degree twisted fabric, the double sides of the fabric can be conveniently and fully dyed, and the dyeing efficiency of the fabric is improved.

2. A method of dyeing a textile fabric according to claim 1, characterized in that: the spraying unit (2) comprises a sliding block (21), the sliding block (21) is connected with the top plate (12) in a sliding mode, the sliding block (21) is controlled to slide through an electric push rod, and the electric push rod is connected with a power supply through a controller; the bottom of the sliding block (21) is fixedly connected with a spherical spray head (22), the bottom of the spray head (22) is provided with a group of spray holes (23), and the spray holes (23) are communicated with high-pressure dye through pipelines; the spray holes (23) are arranged along the radius direction of the spray head (22), and the distance between every two adjacent spray holes (23) is gradually reduced from the right to the top, so that the dye sprayed by the spray head (22) is uniformly sprayed on the fabric, the dyeing efficiency of the fabric is further improved, and the dyeing quality of the fabric is improved.

3. A method of dyeing a textile fabric according to claim 2, characterized in that: the upper part of the spray head (22) is fixedly connected with a hemispherical protective cover (24), the utilization efficiency of dye is increased through the protective cover (24), and the dyeing efficiency of the cloth is further improved; a vent hole (25) is arranged in the side wall of the protective cover (24), and the vent hole (25) is communicated with a high-pressure air source through a pipeline and a valve; the inner wall of the protective cover (24) is provided with a group of air injection holes (26) communicated with the vent holes (25), and the air injection holes (26) are inclined downwards; the high-speed airflow ejected through the air ejecting holes (26) forms an air curtain, so that the dye is prevented from being adhered to the inner wall of the protective cover (24), the utilization efficiency of the dye is further increased, and the dyeing efficiency of the cloth is improved.

4. A method of dyeing a textile fabric according to claim 1, characterized in that: an exhaust pipe (4) is arranged at the position, corresponding to the spraying unit (2), of the top of the rack (1), and the exhaust pipe (4) is fixedly connected with the vertical plate (11); the bottom of the exhaust pipe (4) is communicated with an exhaust fan through a pipeline, and the top of the exhaust pipe (4) is provided with a funnel-shaped exhaust hopper (41); the bottom of the fabric is exhausted through the air exhaust hopper (41), so that the fabric is further guaranteed to fully absorb the dye, the dyeing consistency of the fabric is guaranteed, and the dyeing efficiency of the fabric is further improved.

5. A method of dyeing a textile fabric according to claim 4, characterized in that: a first gear (42) and a second gear (43) which are meshed with each other are rotatably connected in the exhaust pipe (4); a wind wheel (44) is fixedly connected to a rotating shaft of the first gear (42); a wind shield (45) is fixedly connected to a rotating shaft of the second gear (43); the wind wheel (44) drives the wind shield (45) to rotate, so that the air pumping speed of the air pumping hopper (41) is intermittently controlled, the shaking of the fabric is increased, and the dyeing efficiency of the fabric is further improved.

6. A method of dyeing textile fabrics according to claim 5, characterized in that: a sliding pipe in the exhaust pipe (4) above the first gear (42) is connected with a filter screen (46) for filtering residual dye, and the bottom of the filter screen (46) is provided with a mandril (47); a sliding groove (35) is formed in the top of the support (3) close to one side of the winding roller (13), a bearing seat (32) is connected in the sliding groove (35) in a sliding mode, and the roller (31) is rotationally connected with the bearing seat (32); the bottom of the bearing seat (32) is fixedly connected with a support rod (33), a lever (34) is arranged at a position of the support (3) corresponding to the support rod (33), the middle part of the lever (34) is hinged with the support (3), and one end of the lever (34) penetrates through the exhaust pipe (4) and extends to the lower part of the ejector rod (47); the filter screen (46) slides to drive the roller (31) to vibrate, so that the dyeing efficiency of the cloth is further improved.