Water-saving polyester-mixed cotton cloth printing and dyeing process

Abstract

The invention discloses a water-saving polyester-mixed cotton cloth printing and dyeing process which comprises the following steps: S1, soaking cloth in clean water to remove impurities and stains; s2, washing the soaked cloth with clear water until the water becomes clear; s3, the cloth is placed in a dehydrator to be dehydrated, and proper moisture is reserved for dyeing; s4, putting the polyester-mixed cotton cloth into a dye vat, adding enough dye, and adding an auxiliary agent and a color fixing agent; s5, the dyed cloth is put into clear water to be washed, and redundant dye and auxiliary agents are removed; s6, carrying out acid pickling treatment on the cloth in the step S5; and S7, rinsing the cloth obtained in the step S6. Cotton dyeing and polyester dyeing are carried out in the same step, one washing process is omitted, the water saving effect is achieved, the arc-shaped moving plate can open the transverse feeding and discharging port at a certain distance according to needs, complete opening is not needed, the water vapor discharging amount is controlled, and water waste is reduced.

Description

Technical Field:

[0001] The present invention relates to the technical field of fabric processing equipment, and more specifically to a water-saving printing and dyeing process for polyester-cotton fabrics. Background Art:

[0002] In the existing fabric printing and dyeing industry, the relatively conventional printing and dyeing process sequence is: water washing, acid washing, high-temperature polyester dyeing (dyeing temperature is about 130 °C), water washing, cotton dyeing, and water washing.

[0003] It is dyed in two times, increasing the amount of water washing, with poor effect and low efficiency;

[0004] Moreover, the discharge door of the dyeing vat in the existing fabric dyeing process generally opens or closes directly all at once. When it opens, the opening is relatively large, which easily discharges the internal water vapor and increases the waste of water volume. Summary of the Invention:

[0005] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a water-saving printing and dyeing process for polyester-cotton fabrics. It performs cotton dyeing and polyester dyeing in the same step, reduces one of the water washing processes, achieves a water-saving effect, and its arc-shaped moving plate can open a lateral feeding and discharging port with a certain distance according to needs, without completely opening, so that the discharge amount of its water vapor is controlled and the waste of water volume is reduced.

[0006] The solution of the present invention to solve the above technical problems is:

[0007] A water-saving printing and dyeing process for polyester-cotton fabrics, comprising the following steps:

[0008] S1. Immerse the fabric in clean water to remove impurities and stains;

[0009] S2. Wash the immersed fabric with clean water until the water becomes clear;

[0010] S3. Place the fabric in a dehydrator to dehydrate it so that it retains an appropriate amount of moisture for dyeing;

[0011] S4. Put the polyester-cotton fabric into a dyeing vat, add sufficient dyes, and add auxiliary agents and fixing agents;

[0012] S5. Put the dyed fabric into clean water for water washing to remove excess dyes and auxiliary agents;

[0013] S6. Perform acid washing treatment on the fabric in step S5;

[0014] S7. Perform rinsing on the fabric in step S6;

[0015] S8. Dehydrate the rinsed polyester-cotton blended fabric and perform drying treatment.

[0016] A horizontal feeding and discharging opening is formed on the dyeing vat in the step S4.

[0017] On the left and right parts of the outer side wall of the dyeing vat, a left gear ring and a right gear ring are respectively movably connected through bearings. An arc-shaped moving plate extending left and right is located in front of the horizontal feeding and discharging opening. Side guide plates are fixed or formed on the left and right side walls of the arc-shaped moving plate, and the side guide plates are fixed on the corresponding left gear ring or right gear ring.

[0018] Two driving servo motors are installed at the rear of the dyeing vat. A driving gear is fixed on the output shaft of the driving servo motor, and the driving gear meshes with the corresponding left gear ring or right gear ring. By operating the driving servo motor, the lifting of the arc-shaped moving plate is realized. Its lifting position can be adjusted to change the size of the opening of the horizontal feeding and discharging opening, meeting the needs of loading and unloading materials.

[0019] A rectangular frame-shaped groove is formed on the outer wall surface of the dyeing vat at the edge of the horizontal feeding and discharging opening, and a sealing ring is nested in the rectangular frame-shaped groove.

[0020] On the left, middle and right parts of the front side wall of the arc-shaped moving plate, pressing oil cylinders are fixed. The rear ends of the push rods of all the pressing oil cylinders extend out of the rear wall surface of the arc-shaped moving plate and are fixed to the same transparent cover plate. The transparent cover plate covers the horizontal feeding and discharging opening, and the rear wall surface of the edge of the transparent cover plate is pressed against the sealing ring and the front wall surface of the dyeing vat.

[0021] On the outer side wall of the dyeing vat at the outer sides of the left gear ring and the right gear ring, an annular guide rail part is fixed. An annular groove is formed on the outer wall surface of the annular guide rail part. A sliding guide block is fixed on the inner side wall of the side guide plate, and the sliding guide block is inserted into the corresponding annular groove. The left and right side walls of the sliding guide block are close to or in contact with the inner side wall of the corresponding annular groove.

[0022] The annular guide rail part and the sliding guide block can ensure the accuracy and stability of the lifting position of the arc-shaped moving plate.

[0023] The prominent effect of the present invention is:

[0024] Dyeing cotton and dyeing polyester are carried out in the same step, reducing one of the water washing processes, achieving the effect of water saving. Moreover, its arc-shaped moving plate can open a horizontal feeding and discharging opening with a certain distance according to needs, without being completely opened, so that the water vapor discharge amount is controlled and the waste of water is reduced. Description of the drawings:

[0025] Figure 1 is a partial structural schematic diagram of the present invention (removing components such as the driving servo motor);

[0026] Figure 2 is a partial cross-sectional view of the present invention;

[0027] Figure 3 is a partial cross-sectional view of the side guide plate of the present invention;

[0028] Figure 4 is Figure 1 a partial enlarged view of Specific embodiments:

[0029] As shown in Figures 1 to 4 a water-saving polyester-cotton printed and dyed fabric process, characterized in that it comprises the following steps:

[0030] S1. Immerse the fabric in clean water to remove impurities and stains; soak it in water for 15 - 20 minutes;

[0031] S2. Wash the soaked fabric with clear water until the water becomes clear;

[0032] S3. Place the fabric in a dehydrator to dehydrate it, leaving an appropriate amount of moisture for dyeing;

[0033] S4. Put the polyester-cotton fabric into a dyeing vat, add sufficient dyes, and add auxiliary agents and fixing agents; generally use hot dyeing or high-temperature dyeing, the temperature control should be between 80 - 100 °C according to the actual dyeing requirements, and the time control is between 30 - 60 minutes. Generally, it should be adjusted according to the actual situation during the dyeing process until the desired color is achieved. Among them, the polyester-cotton is dyed with the same dye, so there is no need to dye it twice.

[0034] S5. Put the dyed fabric into clear water for washing to remove excess dyes and auxiliary agents; this step can enhance the color fastness of the polyester-cotton blended fabric.

[0035] S6. Acid-wash the fabric in step S5;

[0036] S7. Rinse the fabric in step S6; use a large amount of clear water to rinse repeatedly to ensure that the fabric is clean and bright after dyeing.

[0037] S8. Dehydrate and dry the rinsed polyester-cotton blended fabric.

[0038] Furthermore, a horizontal inlet and outlet 11 is formed on the dyeing vat 10 in step S4. A plurality of legs are fixed to the bottom surface of the dyeing vat 10, and the bottom surfaces of the legs are fixed to the top surface of the lower fixing plate; the rear wall surfaces of two legs are fixed to the same horizontally extending transverse plate, and driving servo motors 14 are fixed to the top surfaces of the left and rear parts of the transverse plate.

[0039] On the left and right sides of the outer wall of the dyeing vat 10, a left gear ring 12 and a right gear ring 13 are respectively movably connected through bearings. An arc-shaped moving plate 20 extending left and right is located in front of the horizontal inlet and outlet 11. Side guide plates 21 are fixed or formed on the left and right side walls of the arc-shaped moving plate 20, and the side guide plates 21 are fixed on the corresponding left gear ring 12 or right gear ring 13.

[0040] A driving gear 15 is fixed on the output shaft of the driving servo motor 14, and the driving gear 15 meshes with the corresponding left gear ring 12 or right gear ring 13.

[0041] Furthermore, two observation through holes are formed on the arc-shaped moving plate 20, and a transparent glass plate 30 is installed on the arc-shaped moving plate 20 and covers the corresponding observation through holes.

[0042] On the left and right sides of the front wall surface of the dyeing vat 10, blocking blocks 1 are fixed. Elastic blocks 2 are fixed on the top surfaces of the blocking blocks 1. Limit blocks 3 are fixed on the bottom surfaces of the side guide plates 21, and the bottom surfaces of the limit blocks 3 are pressed against the top surfaces of the corresponding elastic blocks 2.

[0043] On the top surface of the lower fixed plate behind the dyeing vat 10, a vertical support frame 40 is fixed. At the end of the front connecting rod at the top of the vertical support frame 40, a rear permanent magnet block 41 is fixed, and the front end surface of the rear permanent magnet block 41 faces the top end of the corresponding side guide plate 21.

[0044] On the outer wall surface of the dyeing vat 10 at the edge of the horizontal inlet and outlet 11, a rectangular frame-shaped groove is formed, and a sealing ring 4 is nested in the rectangular frame-shaped groove.

[0045] On the left, middle and right parts of the front side wall of the arc-shaped moving plate 20, pressing oil cylinders 22 are fixed. The rear ends of the push rods of all the pressing oil cylinders 22 extend out of the rear wall surface of the arc-shaped moving plate 20 and are fixed to the same transparent cover plate 23 (which can be made of PC material). The transparent cover plate 23 covers the horizontal inlet and outlet 11, and the rear wall surface of the edge part of the transparent cover plate 23 is pressed against the sealing ring 4 and the front wall surface of the dyeing vat 10.

[0046] On the outer wall of the dyeing vat 10 outside the left gear ring 12 and the right gear ring 13, an annular guide rail part 16 is fixed. An annular groove is formed on the outer wall surface of the annular guide rail part 16. A sliding guide block 211 is fixed on the inner side wall of the side guide plate 21, and the sliding guide block 211 is inserted into the corresponding annular groove, and the left and right side walls of the sliding guide block 211 are close to or in contact with the inner side wall of the corresponding annular groove.

[0047] In the processing of this embodiment, since it only uses one-time dyeing, the number of water washes is reduced, and the amount of water liquid used is reduced.

[0048] Meanwhile, during its operation, through the synchronous operation of two driving servo motors 14, two driving gears 15 can drive the corresponding left gear ring 12 and right gear ring 13 to rotate, enabling the arc-shaped moving plate 20 to move upward or downward. It can adjust the area covering the horizontal inlet / outlet 11 as needed, thereby reducing water vapor discharge and water loss, achieving a water-saving effect.

[0049] During its operation, first, the push rods of all pressing oil cylinders 22 retract, creating a gap of within 10 mm between the transparent cover plate 23 and the outer wall of the dyeing vat 10. Then, through the synchronous operation of two driving servo motors 14, two driving gears 15 can drive the corresponding left gear ring 12 and right gear ring 13 to rotate, enabling the arc-shaped moving plate 20 to move upward and open the horizontal inlet / outlet 11. Among them, when the arc-shaped moving plate 20 moves backward until it presses against two rear permanent magnet blocks 41, adsorption occurs, indicating that it has moved into place. At this time, the horizontal inlet / outlet 11 is in a fully open state.

[0050] When the arc-shaped moving plate 20 moves forward and downward until the bottom surface of the limit block 3 presses against the top surface of the corresponding elastic block 2, at this time, the arc-shaped moving plate 20 moves downward to the lowest position, indicating that it has moved into place. Then, through the pushing of the push rods of all pressing oil cylinders 22, the transparent cover plate 23 covers the horizontal inlet / outlet 11, and the rear wall surface of the edge of the transparent cover plate 23 presses against the sealing ring 4 and the front wall surface of the dyeing vat 10 to achieve sealed coverage, with good effect.

[0051] Meanwhile, through the transparent glass plate 30 and the transparent cover plate 23, the operation inside the dyeing vat 10 can be observed, which is very convenient.

Claims

1. A water-saving polyester-cotton fabric printing and dyeing process, characterized in that: The following steps are involved: S1. Soak the fabric in clean water to remove impurities and stains; S2. Wash the soaked cloth with clean water until the water becomes clear; S3, placing the fabric in a dehydrator to dehydrate it so that it retains appropriate moisture for dyeing; S4. Put the polyester-cotton fabric into the dyeing vat, add enough dye, auxiliary agent and fixing agent; S5, washing the dyed fabric in clean water to remove excess dye and auxiliary agent; S6, subjecting the fabric of step S5 to acid washing again; S7, rinsing the fabric in step S6; S8, dehydrating and drying the rinsed polyester-cotton blended fabric.

2. A water-saving polyester-cotton fabric printing and dyeing process according to claim 1, characterized in that: The dyeing vat (10) in step S4 is formed with a transverse inlet and outlet port (11).

3. A water-saving polyester-cotton fabric printing and dyeing process according to claim 2, characterized in that: The left and right parts of the outer wall of the dye vat (10) are movably connected to a left gear ring (12) and a right gear ring (13) through bearings, and an arc-shaped movable plate (20) extending left and right is located in front of the lateral inlet and outlet (11). Side guide plates (21) are fixed or formed on the left and right walls of the arc-shaped movable plate (20), and the side guide plates (21) are fixed on the corresponding left gear ring (12) or right gear ring (13); Two driving servo motors (14) are installed at the rear of the dye vat (10), and a driving gear (15) is fixed on the output shaft of the driving servo motor (14), and the driving gear (15) is meshed with the corresponding left gear ring (12) or right gear ring (13).

4. The water-saving polyester-cotton fabric printing and dyeing process according to claim 3, characterized in that: Two observation through holes are formed on the arc-shaped movable plate (20), and the transparent glass plate (30) is installed on the arc-shaped movable plate (20) and covers the corresponding observation through holes.

5. A water-saving polyester-cotton fabric printing and dyeing process according to claim 2, characterized in that: The left and right parts of the front wall of the dye vat (10) are both fixed with blocking blocks (1), the top surface of the blocking blocks (1) is fixed with elastic blocks (2), the bottom surface of the side guide plate (21) is fixed with limiting blocks (3), and the bottom surface of the limiting blocks (3) is pressed against the top surface of the corresponding elastic blocks (2).

6. A water-saving polyester-cotton fabric printing and dyeing process according to claim 2, characterized in that: A vertical support frame (40) is fixed to the top surface of the lower fixed plate at the rear of the dye vat (10), a rear permanent magnet block (41) is fixed to the end of the front connecting rod at the top of the vertical support frame (40), and the front end of the rear permanent magnet block (41) faces the top end of the corresponding side guide plate (21).

7. A water-saving polyester-cotton fabric printing and dyeing process according to claim 2, characterized in that: A rectangular frame-shaped groove is formed on the outer wall surface of the dye vat (10) at the edge of the transverse material inlet and outlet (11), and the sealing ring (4) is nested in the rectangular frame-shaped groove.

8. A water-saving polyester-cotton fabric printing and dyeing process according to claim 7, characterized in that: The left, middle and right parts of the front side wall of the arc-shaped movable plate (20) are all fixed with clamping cylinders (22), the rear ends of the push rods of all the clamping cylinders (22) extend out of the rear wall of the arc-shaped movable plate (20) and are fixed with a transparent cover plate (23), the transparent cover plate (23) covers the transverse inlet and outlet (11), and the rear wall of the edge of the transparent cover plate (23) is pressed against the sealing ring (4) and the front wall of the dye vat (10).

9. A water-saving polyester-cotton fabric printing and dyeing process according to claim 2, characterized in that: An annular guide rail portion (16) is fixed on the outer side wall of the dye vat (10) at the outer side of the left gear ring (12) and the right gear ring (13), and an annular groove is formed on the outer wall surface of the annular guide rail portion (16). A sliding guide block (211) is fixed on the inner side wall of the side guide plate (21), and the sliding guide block (211) is inserted into the corresponding annular groove, and the left and right side walls of the sliding guide block (211) are closely attached to or close to the inner side wall of the corresponding annular groove.

10. A water-saving polyester-cotton fabric printing and dyeing process according to claim 3, characterized in that: A plurality of legs are fixed to the bottom surface of the dye vat (10), and the bottom surfaces of the legs are fixed to the top surface of the lower fixing plate; The rear wall surfaces of the two legs are fixed with a same horizontal plate extending left and right, and the top surfaces of the left part and the rear part of the horizontal plate are both fixed with a driving servo motor (14).

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