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CN-121992592-A - Low-temperature environment-friendly dyeing equipment and process for polyester fabric

CN121992592ACN 121992592 ACN121992592 ACN 121992592ACN-121992592-A

Abstract

The invention discloses low-temperature environment-friendly dyeing equipment and process for polyester fabrics, which relate to the field of dyeing equipment and aim at solving the problems of uneven dyeing and poor color fastness caused by difficult dyeing of polyester fabrics in a low-temperature environment, and the dyeing equipment comprises a frame, wherein the frame is rotationally connected with a feeding carrier roller, the side edge of the feeding carrier roller is provided with a supporting seat, a pressing plate and a driving roller are arranged on the supporting seat, a dyeing box is fixedly connected with the frame, the dyeing box is fixedly connected with a double-roller dyeing frame, a driving assembly is arranged between the double-roller dyeing frame and the driving roller, a draining frame is arranged on the side edge of the double-roller dyeing frame, a material conveying carrier roller group is arranged on the side edge of the dyeing box and rotationally connected with the frame, a discharging carrier roller is rotationally connected with the frame, and a movable roller frame is arranged on the side edge of the discharging carrier roller, and the dyeing equipment has the advantages that: the dye liquor is uniformly immersed by the pressing plate for removing impurities and the double-roller dyeing frame, and impurities in the process steps are removed and the dye liquor is circularly optimized, so that the dye is uniformly distributed under the low-temperature condition, and the dyeing uniformity and the color fastness are improved.

Inventors

  • ZHANG CHENGREN
  • YAN XUEJING
  • CHEN KUNZHEN
  • YU BANGYOU
  • LIANG MINGLIANG

Assignees

  • 淮滨县未来纺织科技有限公司

Dates

Publication Date
20260508
Application Date
20260204

Claims (10)

  1. 1. The low-temperature environment-friendly dyeing equipment for the polyester fabrics is characterized by comprising a frame (1), wherein a feeding carrier roller (2) is rotationally connected to the end part of the frame (1), a supporting seat (3) is arranged on the side edge of the feeding carrier roller (2), a pressing plate (4) and a driving roller (5) are arranged on the supporting seat (3), the supporting seat (3) is fixedly connected with the frame (1), a dyeing box (6) is fixedly connected onto the frame (1), a double-roller dyeing frame (7) is fixedly connected to the dyeing box (6), a driving component (8) is arranged between the double-roller dyeing frame (7) and the driving roller (5), a draining frame (9) is arranged on the side edge of the double-roller dyeing frame (7), a material conveying carrier roller set (10) is fixedly connected with the dyeing box (6), a discharging carrier roller (11) is arranged on the side edge of the material conveying carrier roller set (10), and the discharging carrier roller (11) is in rotary connection with the frame (1), and a discharging carrier roller (12) is arranged on the side edge of the frame (1); Be equipped with filter (13) in dyeing case (6), double-roll dyeing frame (7) are located filter (13) top, double-roll dyeing frame (7) internal rotation is connected with two synchronous pivoted material soaking idler (14), two the top of feeding idler (2) is equipped with dyestuff bearing roller (15), dyestuff bearing roller (15) top is equipped with out liquid roller (16), it is equipped with dye liquor box (17) to go out liquid roller (16) top, dye liquor box (17) fixedly connected with feed liquor pipe (18), feed liquor pipe (18) with the bottom intercommunication of dyestuff case.
  2. 2. The low-temperature environment-friendly dyeing equipment for polyester fabrics is characterized in that the driving assembly (8) comprises a first belt wheel (801), the first belt wheel (801) is coaxially and fixedly connected with a stirring roller, the stirring roller is rotationally connected with the dyeing box (6), the stirring roller is positioned below the filter plate (13), a second belt wheel (804) is fixedly connected to each of the soaking carrier roller (14) and the liquid outlet roller (16), a first connecting belt (805) is matched between the first belt wheel (801) and the second belt wheel (804), a third belt wheel (806) is fixedly connected to each of the first belt wheel (801) and the driving roller (5), and a second connecting belt (807) is matched between the two third belt wheels (806).
  3. 3. The low-temperature environment-friendly dyeing equipment for polyester fabrics is characterized in that a bevel gear set (808) is rotationally connected to a supporting seat (3), the bevel gear set (808) is fixedly connected with a driving roller (5), a cylindrical cam (809) is fixedly connected to the bevel gear set (808), a guide groove (810) is formed in the cylindrical cam (809), a connecting pin (811) is connected to the guide groove (810) in a sliding mode, a sliding sleeve (812) is connected to the connecting pin (811) in a sliding mode, a guide rod (813) is fixedly connected to the sliding sleeve (812), and the guide rod (813) is fixedly connected with the pressing plate (4).
  4. 4. The low-temperature environment-friendly dyeing equipment for polyester fabrics is characterized in that the guide groove (810) comprises a first sliding groove (8101) and a second sliding groove (8102), the first sliding groove (8101) is a spiral groove, a tension spring (19) is matched on the connecting pin (811), a connecting block (20) is fixedly connected on the guide rod (813), a fixing bolt is arranged between the pressing plate (4) and the connecting block (20), a key-type hole (21) is formed in the pressing plate (4), and a first spring (22) is sleeved on the guide rod (813).
  5. 5. The low-temperature environment-friendly dyeing equipment for polyester fabrics is characterized in that first regulating blocks (23) are rotatably connected to two sides of the feeding carrier roller (2), the first regulating blocks (23) are in threaded connection with first screws (24), the first screws (24) are rotatably connected with first supporting rods (25), the first regulating blocks (23) are in sliding connection with the first supporting rods (25), and the first supporting rods (25) are fixedly connected with the frame (1).
  6. 6. The low-temperature environment-friendly dyeing equipment for polyester fabrics is characterized in that the draining rack (9) comprises a second supporting rod (901), a first supporting roller (902) is rotatably connected to the second supporting rod (901), an adjusting pressing roller (903) is arranged above the first supporting roller (902), second adjusting blocks (904) are rotatably connected to two sides of the adjusting pressing roller (903), sliding grooves for the second adjusting blocks (904) to slide are formed in the second supporting rod (901), a second screw (905) is connected to the second adjusting blocks (904) in a threaded mode, and the second screw (905) is rotatably connected with the second supporting rod (901).
  7. 7. The low-temperature environment-friendly dyeing equipment for polyester fabrics, as claimed in claim 6, is characterized in that the dyeing box (6) and the side edges of the second supporting rod (901) are provided with second supporting rollers (26).
  8. 8. The low-temperature environment-friendly dyeing equipment for polyester fabrics is characterized in that a collecting groove (27) is formed in a frame (1), the material conveying carrier roller set (10) comprises an upper roller body (1001) and a lower roller body (1002), the lower roller body (1002) is rotationally connected with the collecting groove (27), the upper roller body (1001) is arranged in a delta shape, the upper roller body (1001) is rotationally connected with a mounting seat, and the mounting seat is fixedly connected with the frame (1).
  9. 9. The low-temperature environment-friendly dyeing equipment for polyester fabrics is characterized in that the discharging carrier roller (11) is rotatably connected with a third supporting rod (28), the third supporting rod (28) is hinged with the frame (1), a telescopic rod (29) is hinged between the third supporting rod (28) and the frame (1), an adjusting groove (30) is formed in the third supporting rod (28), a third adjusting block (31) is connected in the adjusting groove (30) in a sliding mode, a second spring (32) is arranged on the side edge of the third adjusting block (31), an elastic pressing roller (33) is hinged to the third adjusting block (31), and a third carrier roller (34) is arranged on the side edge of the elastic pressing roller (33).
  10. 10. A low-temperature environment-friendly dyeing process for polyester fabrics is characterized in that the fabrics move along the direction from a feeding carrier roller (2) to a discharging carrier roller (11), after passing through the feeding carrier roller (2), two groups of pressing plates (4) remove impurities and flatten the middle fabrics, the fabrics enter a dyeing box (6) after being pressed and compacted, circulating dye liquor is uniformly immersed between two groups of soaking carrier rollers (14) and a dye carrier roller (15), residual liquid is drained through a draining frame (9), and the residual liquid is stably conveyed through a material conveying carrier roller group (10) and finally guided out by the discharging carrier roller (11).

Description

Low-temperature environment-friendly dyeing equipment and process for polyester fabric Technical Field The invention relates to the technical field of dyeing equipment, in particular to low-temperature environment-friendly dyeing equipment and process for polyester fabrics. Background Polyester (polyester fiber) has become the synthetic fiber with the greatest global use amount due to its excellent physical and chemical properties. However, conventional polyester dyeing is typically carried out at elevated temperatures and pressures (above 130 ℃) to expand the amorphous regions of the fiber sufficiently to allow diffusion dyeing of the disperse dye. The process has huge energy consumption, is easy to cause fiber damage and hard hand feeling, and has certain safety risks. In response to the call for energy conservation and emission reduction, low-temperature dyeing technology (generally at a temperature below 100 ℃ and especially at a normal pressure of 80-100 ℃) is an important development direction of industry. However, low temperature dyeing poses two major technical bottlenecks in practical applications: Firstly, under the low-temperature condition, the molecular chain segment of the polyester fiber has weak motion capability, and the amorphous area has insufficient puffing, so that the diffusion rate of dye molecules into the fiber is rapidly reduced, and the dip dyeing efficiency is obviously reduced. The dyeing time is prolonged, the production efficiency is affected, and the problems of uneven dyeing, poor color fastness and the like caused by accumulation of dye on the surface of the fiber are more easily caused. In the prior art, dyeing carriers are added to promote fiber puffing, but many traditional carriers have the problems of poor toxicity and biodegradability, easiness in residual odor and the like, and do not meet the environmental protection requirements. Secondly, in the pretreatment (scouring and desizing) step of the fabric before dyeing, most spinning oil and sizing agent are removed, but trace amount of impurities such as emulsifying oil, hydrolytic sizing agent and the like are inevitably remained on the surface of the fiber. However, in a low-temperature dyeing system, dye dyeing is difficult, and the hydrophobic or amphiphilic residues can unevenly adhere to the surface of the fiber to form a local barrier, so that the uniformity of initial dye adsorption is seriously disturbed, and the dye is a main cause for generating color patterns and color spots and seriously affecting the quality of products. Disclosure of Invention Aiming at the situation, in order to overcome the defects of the prior art, the invention provides low-temperature environment-friendly dyeing equipment and process for the polyester fabric, and the problems of uneven dyeing, poor color fastness and influence on product quality caused by difficult dyeing of the polyester fabric in a low-temperature environment are effectively solved through the design. The invention provides the technical scheme that the dyeing machine comprises a frame, wherein the end part of the frame is rotationally connected with a feeding carrier roller, the side edge of the feeding carrier roller is provided with a supporting seat, a pressing plate and a driving roller are arranged on the supporting seat, the supporting seat is fixedly connected with the frame, a dyeing box is fixedly connected with a double-roller dyeing rack, a driving assembly is arranged between the double-roller dyeing rack and the driving roller, a draining rack is arranged on the side edge of the double-roller dyeing rack, the draining rack is fixedly connected with the dyeing box, a material conveying carrier roller group is arranged on the side edge of the dyeing box, the material conveying carrier roller group is rotationally connected with the frame, a material discharging carrier roller is arranged on the side edge of the material conveying carrier roller group, the material discharging carrier roller is rotationally connected with the frame, and a movable roller rack is arranged on the material discharging side edge; The dyeing box is internally provided with a filter plate, the double-roller dyeing frame is positioned above the filter plate, two synchronous rotating soaking carrier rollers are rotationally connected to the double-roller dyeing frame, dye carrier rollers are arranged above the feeding carrier rollers, a liquid outlet roller is arranged above the dye carrier rollers, a dye liquor box is arranged above the liquid outlet roller, the dye liquor box is fixedly connected with a liquid inlet pipe, and the liquid inlet pipe is communicated with the bottom of the dyeing box. Preferably, the driving assembly comprises a first belt wheel, the first belt wheel is coaxially and fixedly connected with a stirring roller, the stirring roller is rotationally connected with the dyeing box, the stirring roller is positioned below the filter plate, the material so