One-bath two-step light alkali dyeing system and environment-friendly process for polyester-cotton blended fabric

Abstract

The invention belongs to the field of polyester-cotton blended fabric dyeing, and particularly relates to a one-bath two-step method light-alkali-amount dyeing system and environment-friendly process for polyester-cotton blended fabrics, the system comprises a device main body, and a power supply is arranged in the device main body; a bleaching bin is formed in the position, close to the left side, of the top end of the device body, a dyeing bin is formed in the right side of the bleaching bin, a partition plate is arranged between the bleaching bin and the dyeing bin, lifting shifting mechanisms are arranged on the bleaching bin and the dyeing bin correspondingly, and heating wires are arranged on the inner wall of the dyeing bin. A time relay is arranged in the device main body, and the top end of the device main body is rotationally connected with a top cover; through the structural design that the shifting assembly and the trigger control assembly are combined, the function that after the top cover is closed, the shifting mechanism automatically starts to work to shift cotton-polyester blended fabric placed on the shifting rod is achieved, and through the double-bin design of the bleaching bin and the dyeing bin, bleaching and dyeing work can be conducted at the same time.

Description

Technical Field

[0001] The invention relates to the field of polyester-cotton blended fabric dyeing, in particular to a one-bath two-step light alkali dyeing system and an environmentally friendly process for polyester-cotton blended fabrics. Background Art

[0002] Polyester-cotton blended fabric, also known as TC or CVC fabric, is a textile made of a blend of polyester and cotton fibers. Since its development in my country in the 1960s, it has been widely used due to its superior comprehensive performance. Because it is a blend of polyester and cotton fibers, in order to avoid color unevenness during the dyeing process, two steps of dyeing are required to ensure color uniformity.

[0003] The existing one-bath, two-step, low-alkali dyeing system for polyester-cotton blended fabrics can be specifically referred to in Chinese Patent Publication No. CN208776972U, which discloses a low-salt, low-alkali reactive dyeing device in detail, including a dyeing tank, a fixed frame, a feed wheel, and fabric. The fixed frame is fixedly connected to the top surface of both sides of the outer wall of the dyeing tank. The feed wheel is provided on one side of the top of the fixed frame and is connected to the fixed frame via a bracket. The fabric is provided on the surface of the feed wheel. A drive motor is fixedly provided on one fixed surface of the fixed frame and is connected to the feed wheel via a belt. An acid pipe is fixedly provided on one side of the bottom of the fixed frame, and an alkali pipe is fixedly provided on one side of the bottom of the acid pipe. The utility model can effectively drive the feed wheel to transport the fabric through the drive motor. The electromagnetic valve can be effectively controlled by a controller, a display screen, and an adjustment switch to control the operation of the electromagnetic valve, thereby controlling the pH value of the liquid in the dyeing tank. The waterproof motor and stirring paddle can effectively make the acid and alkali liquid mix more evenly.

[0004] Although the existing dyeing system has achieved the goal of ensuring dyeing uniformity while reducing the amount of alkali used, its dyeing steps for polyester-cotton blended fabrics are relatively cumbersome. First, the fabric needs to be pre-treated for dyeing, and then the dye is added to the dyeing device for dispersion. Finally, the fabric is added to the dyeing device and dyed in two steps using different temperatures. The operation is cumbersome and inconvenient, and the dyeing efficiency is low. Therefore, to address the above problems, a one-bath, two-step, light-alkali dyeing system and an environmentally friendly process for polyester-cotton blended fabrics are proposed. Summary of the Invention

[0005] In order to solve any of the problems raised in the background art, the present invention proposes a one-bath two-step light alkali dyeing system and an environmentally friendly process for polyester-cotton blended fabrics.

[0006] The technical solution adopted by the present invention to solve the technical problem is as follows: the one-bath two-step light alkali dyeing system for polyester-cotton blended fabrics of the present invention comprises a device body, wherein a power supply is provided inside the device body; a bleaching chamber is provided at a position near the left side of the top of the device body, a dyeing chamber is provided to the right of the bleaching chamber, a partition is provided between the bleaching chamber and the dyeing chamber, the bleaching chamber and the dyeing chamber are both provided with a lifting and toggling mechanism, the inner wall of the dyeing chamber is provided with a heating wire, a time relay is provided inside the device body, and the top of the device body is rotatably connected to a top cover;

[0007] The lifting and toggling mechanism is used to lift and toggle the polyester-cotton blended fabric placed above it. The lifting and toggling mechanism includes a toggle component, a lifting component and a trigger control component. The toggle component is arranged inside the main body of the device. The toggle component is used to toggle the polyester-cotton blended fabric soaked in the bleaching chamber and the dyeing chamber to make its dyeing and bleaching effects more uniform. The lifting component is arranged on the front and back sides of the inner wall of the bleaching chamber and the dyeing chamber. The lifting component is used to lift and remove the bleached or dyed fabric to facilitate the next process. The trigger control component is arranged at the top of the main body of the device. The trigger control component is used to control the start timing of the toggle component and the lifting component.

[0008] Preferably, the toggle assembly includes a transmission chamber, which is opened inside the device body, and the interior of the transmission chamber is fixedly connected to a first motor, and the output shaft on the left side of the first motor is fixedly connected to a transmission worm, the left side of the transmission worm is rotatably connected to the inner wall of the transmission chamber, and the top end of the transmission worm is engaged with a transmission worm wheel, one end of the transmission worm wheel is rotatably connected to the inner wall of the transmission chamber, and the other end of the transmission worm wheel is fixedly connected to the transmission shaft on the right side, and two groups of transmission shafts are provided, and the outer sides of the two groups of transmission shafts are provided with transmission belts, and the two groups of transmission shafts are fixedly connected to the driving gear, and the top end of the driving gear is engaged with the driving rack, and the driving rack is slidably connected to the interior of the transmission chamber.

[0009] Preferably, the lifting assembly includes a connecting block, which is fixedly connected to the center position of the driving rack, and the end of the connecting block away from the driving rack is fixedly connected to a moving block, an installation cavity is opened inside the moving block, and a second motor is fixedly connected to the inside of the installation cavity, and the output shaft at the bottom end of the second motor is fixedly connected to a driving gear, the driving gear is meshed with a passive gear ring, and the passive gear ring is fixedly connected to the outside of the screw sleeve, and the screw sleeve is rotatably connected to the inner wall of the moving block, the screw sleeve is threadedly connected to the screw, and the upper and lower ends of the screw are fixedly connected to the upper and lower ends of the inner wall of the moving groove, and the moving groove is opened on the lifting rod, and the lifting rod is arranged on the front and rear sides of the inner walls of the bleaching chamber and the dyeing chamber.

[0010] Preferably, the bottom end of the lifting rod is fixedly connected to the toggle rod, the toggle rod is cylindrical in design, and the combination of the lifting rod and the toggle rod is designed as a plow rake as a whole.

[0011] Preferably, the trigger control assembly includes a fixed seat, which is fixedly connected to the top of the device body and is arranged on the rear side of the top cover, an active cavity is opened inside the fixed seat, a movable block is inserted into the interior of the active cavity, a spring is provided on the rear side of the movable block, the bottom end of the rear side of the movable block is fixedly connected to a first connecting piece, the first connecting piece fits with the second connecting piece, the second connecting piece is fixedly connected to the fixed block, the fixed block is fixedly connected to the bottom end of the rear side of the inner wall of the active cavity, the top of the movable block is fixedly connected to a connecting slider, the connecting slider is slidably connected to the inside of a slide groove, the slide groove is opened at the top of the active cavity, and the front end of the slide groove is fixedly connected to a third connecting piece.

[0012] Preferably, a magnetic block is fixedly connected to the front end of the fixing seat, and the magnetic block is attracted to the top cover, and the bottom end of the top cover is made of cast iron.

[0013] Preferably, the front end of the movable block is fixedly connected to a buffer pad, the buffer pad is made of rubber, the front end of the spring is fixedly connected to the movable block, and the rear end of the spring is fixedly connected to the inner wall of the movable cavity.

[0014] Preferably, the connecting slider, the first connecting piece, the second connecting piece, the fixed block and the third connecting piece are all made of oxygen-free copper, and the magnetic block and the movable block are made of engineering plastic.

[0015] Preferably, the first connecting piece is electrically connected to the power supply through a wire, the fixed block is electrically connected to the second motor and the time relay through a wire, the time relay is connected to the power supply through a wire, the third connecting piece is electrically connected to the power supply through a wire, the connecting slider is electrically connected to the first motor through a wire, and the heating wire is electrically connected to the connecting slider through a wire.

[0016] Preferably, a one-bath two-step light alkali environmentally friendly dyeing process for polyester-cotton blended fabrics comprises the following steps:

[0017] S1: Cut the polyester-cotton blended fabric into the size that can be put into the bleaching chamber and dyeing chamber;

[0018] S2: Add hydrogen peroxide bleaching agent with a concentration of 5-8g / L and scouring agent with a concentration of 2-3g / L to the bleaching chamber;

[0019] S3: Add disperse dye, reactive dye, anti-fouling agent and pH buffer into the dyeing chamber at one time. The amount of anti-fouling agent is 1-2g / L, and the amount of pH buffer is 0.5-1g / L.

[0020] S4: Put the polyester-cotton blended fabric in and close the top cover to start the toggle assembly working;

[0021] S5: Start the heating wire inside the dyeing chamber and raise the temperature to 130°C for 30 minutes, then reduce the temperature to 80°C at a rate of 1.5°C / min;

[0022] S6: Add 50-60% of the total alkali content of the compound alkali, which is prepared by mixing 10% caustic soda, 30% soda ash and 60% triethanolamine. After running for 8-12 minutes, add the alkali for the second time, add the remaining 40-50% of the compound alkali, keep warm for 45-55 minutes, and maintain the pH at 10-10.5;

[0023] S7: Open the top cover to the limit to trigger the lifting component, so that the lifting rod drives the toggle rod to rise and automatically scoop out the fabric;

[0024] S8: Post-treatment: First wash with 65-75℃ hot water for 8-12 minutes, then use 90-95℃ soap for 12-18 minutes, and finally rinse with cold water and dry.

[0025] The present invention is beneficial in that:

[0026] 1. The present invention utilizes a structural design that combines a toggle assembly with a trigger control assembly. This allows the toggle mechanism to automatically activate after the top cover is closed to toggle the polyester-cotton blended fabric placed on the toggle lever. This eliminates the need for manual activation, resulting in convenient and quick operation. The second motor is a stepper motor, and the toggle speed and direction of the toggle lever can be adjusted by controlling the frequency, number, and sequence of the pulse signals, ensuring uniform and sufficient dyeing of the polyester-cotton blended fabric.

[0027] 2. The present invention utilizes a combined trigger control assembly and lifting assembly to automatically lift the lifting rod and toggle lever upward to remove fabric from the bleaching and dyeing chambers after the top cover is opened to its limit. This facilitates the removal of polyester-cotton blended fabrics from the bleaching and dyeing chambers, eliminating the need for workers to manually remove the fabrics. This effectively reduces the likelihood of direct contact between dyes and other chemicals and workers, thus protecting them.

[0028] 3. The present invention uses a composite alkali prepared by combining 30% soda ash, 10% caustic soda, and 60% triethanolamine, which can effectively reduce the total alkali dosage and minimize pH fluctuations. The caustic soda is used to quickly raise the pH to the value required for color fixation, while the triethanolamine provides buffering capacity to maintain pH stability. The addition of the alkali agent in batches can effectively reduce the waste of the alkali agent, thereby reducing the total alkali dosage.

[0029] 4. The present invention adopts a dual-chamber design of a bleaching chamber and a dyeing chamber, which can perform bleaching and dyeing at the same time. When dyeing polyester-cotton blended fabrics, the bleaching and dyeing processes can be completed continuously, eliminating the intermediate washing step, saving washing water, and improving processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0031] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0032] Figure 2 It is a schematic diagram of a partial front view cross-sectional three-dimensional structure of the present invention;

[0033] Figure 3 For the present invention Figure 2 A in the middle is an enlarged structural diagram;

[0034] Figure 4 It is a schematic diagram of a first partial side sectional three-dimensional structure of the present invention;

[0035] Figure 5 For the present invention Figure 4 The enlarged structural diagram at B in the middle;

[0036] Figure 6 It is a schematic diagram of a second partial side perspective cross-sectional structure of the present invention;

[0037] Figure 7 For the present invention Figure 6 The enlarged structural diagram at C in the middle;

[0038] Figure 8 It is a schematic diagram of a third partial side sectional three-dimensional structure of the present invention;

[0039] Figure 9 For the present invention Figure 8 The enlarged structural diagram at D in the middle;

[0040] Figure 10 It is a schematic diagram of the three-dimensional structure of the toggle assembly and the lifting assembly of the present invention;

[0041] Figure 11 This is a schematic diagram of the explosion structure of the trigger control component of the present invention;

[0042] Figure 12 For the present invention Figure 11The enlarged structural diagram at E in the middle;

[0043] Figure 13 It is a schematic diagram of the partial explosion structure of the present invention;

[0044] Figure 14 It is a schematic diagram of the process flow of the present invention.

[0045] In the figure: 1. device body; 2. bleaching chamber; 3. dyeing chamber; 4. top cover; 41. transmission chamber; 42. first motor; 43. transmission worm; 44. transmission worm gear; 45. transmission shaft; 46. transmission belt; 47. driving gear; 48. driving rack; 49. connecting block; 50. mounting chamber; 51. second motor; 52. driving gear; 53. driven ring gear; 54. screw sleeve; 55. moving block; 56. screw; 57. moving groove; 58. lifting rod; 59. toggle rod; 60. fixed seat; 61. magnetic block; 62. movable chamber; 63. movable block; 64. buffer pad; 65. connecting slider; 66. slide groove; 67. spring; 68. first connecting piece; 69. second connecting piece; 70. fixed block; 71. third connecting piece. DETAILED DESCRIPTION

[0046] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0047] Example 1

[0048] See also Figures 1-14 As shown, a one-bath, two-step, light-alkali dyeing system for polyester-cotton blended fabrics comprises a device body 1, wherein a power supply is provided inside the device body 1; a bleaching chamber 2 is provided at a position near the left side of the top of the device body 1; a dyeing chamber 3 is provided to the right of the bleaching chamber 2; a partition is provided between the bleaching chamber 2 and the dyeing chamber 3; the bleaching chamber 2 and the dyeing chamber 3 are both provided with a lifting and toggling mechanism; a heating wire is provided on the inner wall of the dyeing chamber 3; a time relay is provided inside the device body 1, and a top cover 4 is rotatably connected to the top of the device body 1;

[0049] The lifting and toggling mechanism is used to lift and toggle the polyester-cotton blended fabric placed above it. The lifting and toggling mechanism includes a toggle assembly, a lifting assembly, and a trigger control assembly. The toggle assembly is provided inside the device body 1. The toggle assembly is used to toggle the polyester-cotton blended fabric immersed in the bleaching chamber 2 and the dyeing chamber 3 to make the dyeing and bleaching effects more uniform. The lifting assembly is provided on the front and back sides of the inner walls of the bleaching chamber 2 and the dyeing chamber 3. The lifting assembly is used to lift and remove the bleached or dyed fabric to facilitate the next process. The trigger control assembly is provided at the top of the device body 1. The trigger control assembly is used to control the activation timing of the toggle assembly and the lifting assembly.

[0050] The trigger control assembly includes a fixed seat 60, which is fixedly connected to the top of the device body 1 and is arranged on the rear side of the top cover 4. A movable cavity 62 is opened inside the fixed seat 60, and a movable block 63 is inserted into the interior of the movable cavity 62. A spring 67 is provided on the rear side of the movable block 63. The bottom end of the rear side of the movable block 63 is fixedly connected to a first connecting piece 68, the first connecting piece 68 fits with the second connecting piece 69, and the second connecting piece 69 is fixedly connected to the fixed block 70. The fixed block 70 is fixedly connected to the bottom end of the rear side of the inner wall of the movable cavity 62. The top of the movable block 63 is fixedly connected to a connecting slider 65, and the connecting slider 65 is slidably connected to the slide groove. 66, the slide groove 66 is opened at the top of the active cavity 62, the front end of the slide groove 66 is fixedly connected to the third connecting piece 71, the front end of the fixed seat 60 is fixedly connected to the magnetic block 61, the magnetic block 61 is attracted to the top cover 4, the bottom end of the top cover 4 is made of cast iron, the front end of the movable block 63 is fixedly connected to the buffer pad 64, the buffer pad 64 is made of rubber, the front end of the spring 67 is fixedly connected to the movable block 63, and the rear end of the spring 67 is fixedly connected to the inner wall of the active cavity 62, the connecting slider 65, the first connecting piece 68, the second connecting piece 69 and the fixed block 70 and the third connecting piece 71 are all made of oxygen-free copper, and the magnetic block 61 and the movable block 63 are made of engineering plastic;

[0051] The first connecting piece 68 is electrically connected to the power supply via a wire, the fixing block 70 is electrically connected to the second motor 51 and the time relay via a wire, the time relay is electrically connected to the power supply via a wire, the third connecting piece 71 is electrically connected to the power supply via a wire, the connecting slider 65 is electrically connected to the first motor 42 via a wire, and the heating wire is electrically connected to the connecting slider 65 via a wire;

[0052] When working, first flip the top cover 4 upward, and when the top cover 4 is flipped upward, the rear side of the top cover 4 contacts the buffer pad 64, and as the opening angle of the top cover 4 increases, the pushing force on the buffer pad 64 gradually increases. Under the action of the pushing force, the buffer pad 64 drives the movable block 63 to move toward the inside of the movable cavity 62 and release, so that the movable block 63 squeezes the spring 67, causing the spring 67 to produce elastic deformation. When the top cover 4 is flipped upward to the limit, the rear side of the top cover 4 is attracted to the magnetic block 61 fixedly connected to the fixing seat 60, and the magnetic force of the magnetic block 61 overcomes the restoring force of the spring 67, so that the top cover 4 remains in a fully opened state. At this time, the movable block 63 and the buffer pad 64 are also completely pushed into the inside of the movable cavity 62 by the top cover 4. At this time, the first connecting piece 6 fixedly connected to the rear side of the movable block 63 is 8 is inserted into the gap between the two groups of second connecting pieces 69, and the end portion contacts the fixed block 70, and the upper and lower sides are tightly fitted with the two groups of second connecting pieces 69, so that the circuit is conductive and the lifting assembly is lifted upward to facilitate the placement of the polyester-cotton blended fabric that needs to be bleached and dyed. When the movable block 63 and the buffer pad 64 move toward the interior of the movable cavity 62, they drive the fixedly connected connecting slider 65 to move synchronously inside the slide groove 66, so that the connecting slider 65 is released from the state of fitting with the third connecting piece 71, and then the power supply to the first motor 42 is disconnected. At this time, the first motor 42 stops working and no longer drives the toggle assembly to work. When the top cover 4 is fully opened, bleach and pure water are added to the inside of the bleaching chamber 2, and disperse dyes and reactive dyes are added to the inside of the dyeing chamber 3 to facilitate subsequent bleaching and dyeing processes.

[0053] Furthermore, the lifting assembly includes a connecting block 49, which is fixedly connected to the center of the driving rack 48. The end of the connecting block 49 away from the driving rack 48 is fixedly connected to a moving block 55. A mounting cavity 50 is provided inside the moving block 55. A second motor 51 is fixedly connected to the mounting cavity 50. The output shaft at the bottom end of the second motor 51 is fixedly connected to a driving gear 52. The driving gear 52 is meshed with a passive ring gear 53. The passive ring gear 53 is fixedly connected to the screw sleeve. On the outside of 54, the screw sleeve 54 is rotatably connected to the inner wall of the moving block 55, the screw sleeve 54 is threadedly connected to the screw rod 56, the upper and lower ends of the screw rod 56 are fixedly connected to the upper and lower ends of the inner wall of the moving groove 57, the moving groove 57 is opened on the lifting rod 58, the lifting rod 58 is arranged on the front and rear sides of the inner wall of the bleaching chamber 2 and the dyeing chamber 3, the bottom end of the lifting rod 58 is fixedly connected to the toggle rod 59, the toggle rod 59 is cylindrical in design, and the lifting rod 58 and the toggle rod 59 are designed as a plow rake as a whole;

[0054] During operation, when the first connecting piece 68 contacts the second connecting piece 69 and the fixing block 70 and the circuit is turned on, the second motor 51 starts to rotate forward to drive the active gear 52 to rotate synchronously. The rotation of the active gear 52 drives the meshing passive ring gear 53 to rotate synchronously, so that the screw sleeve 54 rotates synchronously. The rotation of the screw sleeve 54 drives the threaded screw 56 to move upward. When the screw 56 moves upward, it drives the lifting rod 58 and the toggle rod 59 to move upward synchronously, thereby playing the effect of fishing out the polyester-cotton blended fabric processed in the bleaching chamber 2 and the dyeing chamber 3. In this way, the operator Operators do not need to manually fish out the polyester-cotton blended fabric from the bleaching chamber 2 and the dyeing chamber 3, thereby reducing contact with the bleach and dye. When the first connecting piece 68 is no longer in contact with the second connecting piece 69 and the fixing block 70, the circuit is disconnected, and the time relay is triggered to cause the second motor 51 to rotate in the reverse direction and drive the driving gear 52 to reverse synchronously, thereby causing the lifting rod 58 and the toggle rod 59 to move downward, so that the polyester-cotton blended fabric placed on the toggle rod 59 is immersed in the solution inside the bleaching chamber 2 and the dyeing chamber 3. The operator does not need to manually immerse the polyester-cotton blended fabric in the solution, which is convenient to operate and saves time and effort.

[0055] Furthermore, the toggle assembly includes a transmission chamber 41, which is opened inside the device body 1, and a first motor 42 is fixedly connected to the inside of the transmission chamber 41. The output shaft on the left side of the first motor 42 is fixedly connected to a transmission worm 43, and the left side of the transmission worm 43 is rotatably connected to the inner wall of the transmission chamber 41, and the top end of the transmission worm 43 is engaged with a transmission worm gear 44, one end of the transmission worm gear 44 is rotatably connected to the inner wall of the transmission chamber 41, and the other end of the transmission worm gear 44 is fixedly connected to the right side of the transmission shaft 45, and the transmission shaft 45 is provided with two groups, and the outer sides of the two groups of transmission shafts 45 are provided with a transmission belt 46, and the two groups of transmission shafts 45 are fixedly connected to the driving gear 47, and the top end of the driving gear 47 is engaged with the driving rack 48, and the driving rack 48 is slidably connected to the inside of the transmission chamber 41;

[0056] During operation, after the top cover 4 is flipped downward to release the state of attraction between the top cover 4 and the magnetic block 61, the top cover 4 flips downward. At this time, the squeezing force of the top cover 4 on the movable block 63 and the buffer pad 64 gradually disappears. At this time, the movable block 63 and the buffer pad 64 gradually return to their original positions under the action of the restoring force of the spring 67, and drive the connecting slider 65 to move to its original position synchronously. At this time, the connecting slider 65 returns to a state of abutting and fitting with the third connecting piece 71, so that the circuit is turned on and the first motor 42 is started. The first motor 42 drives the transmission worm 43 to rotate. The transmission worm 43 drives the meshing The coupled transmission worm gear 44 rotates, and the rotation of the transmission worm gear 44 drives the fixedly connected transmission shaft 45 to rotate. When one set of transmission shafts 45 rotates, the transmission belt 46 drives the other set of transmission shafts 45 to rotate synchronously at the same speed, thereby making the two sets of driving gears 47 rotate synchronously. The rotation of the driving gear 47 drives the meshing driving rack 48 to move. The moving direction of the driving rack 48 is controlled by the rotation direction of the first motor 42. The movement of the driving rack 48 drives the lifting assembly to move left and right to have the effect of shifting the polyester-cotton blended fabric, so that the bleaching and dyeing effects are more uniform.

[0057] Furthermore, a one-bath two-step light alkali environmentally friendly dyeing process for polyester-cotton blended fabrics comprises the following steps:

[0058] S1: Cut the polyester-cotton blended fabric into a size that can be placed in the bleaching chamber 2 and the dyeing chamber 3;

[0059] S2: Add hydrogen peroxide bleaching agent with a concentration of 5g / L and scouring agent with a concentration of 2g / L to bleaching chamber 2; the scouring agent is a prior art, and the specific details can be referred to Chinese patent publication number CN104074047B;

[0060] S3: Disperse dye, reactive dye, anti-fouling agent and pH buffer are added to dyeing chamber 3 at one time. The amount of anti-fouling agent is 1 g / L, and the amount of pH buffer is 0.5 g / L. The anti-fouling agent is a prior art, and the specific reference is made to Chinese patent publication number CN112593429B. The pH buffer is a prior art, and the specific reference is made to Chinese patent publication number CN102182070B.

[0061] S4: Put the polyester-cotton blended fabric and close the top cover 4 to start the toggle assembly to work;

[0062] S5: Start the heating wire inside the dyeing chamber 3 and raise the temperature to 130°C for 30 minutes, then reduce the temperature to 80°C at a rate of 1.5°C / min;

[0063] S6: Add 50% of the total alkali content of the compound alkali, which is prepared by mixing 10% caustic soda, 30% soda ash and 60% triethanolamine. After running for 8 minutes, add the alkali for the second time and add the remaining 50% of the compound alkali. Keep warm for 45 minutes and maintain the pH at 10.

[0064] S7: Open the top cover 4 to the limit to trigger the lifting assembly, so that the lifting rod 58 drives the toggle rod 59 to rise and automatically fish out the fabric;

[0065] S8: Post-treatment: First wash with 65℃ hot water for 8 minutes, then use 90℃ soap wash for 12 minutes, and finally rinse with cold water and dry.

[0066] Example 2

[0067] Comparative Example 1, as another embodiment of the present invention, is a one-bath two-step light alkali environmentally friendly dyeing process for polyester-cotton blended fabrics, the process comprising the following steps:

[0068] S1: Cut the polyester-cotton blended fabric into a size that can be placed in the bleaching chamber 2 and the dyeing chamber 3;

[0069] S2: Add hydrogen peroxide bleaching agent with a concentration of 6.5g / L and scouring agent with a concentration of 2.5g / L to bleaching chamber 2;

[0070] S3: Disperse dye, reactive dye, anti-fouling agent and pH buffer are added into dyeing chamber 3 at one time. The amount of anti-fouling agent is 1.5 g / L and the amount of pH buffer is 0.75 g / L.

[0071] S4: Put the polyester-cotton blended fabric and close the top cover 4 to start the toggle assembly to work;

[0072] S5: Start the heating wire inside the dyeing chamber 3 and raise the temperature to 130°C for 30 minutes, then reduce the temperature to 80°C at a rate of 1.5°C / min;

[0073] S6: Add 55% of the total alkali content of the composite alkali, which is prepared by mixing 10% caustic soda, 30% soda ash and 60% triethanolamine. After running for 10 minutes, add the alkali for the second time and add the remaining 45% of the composite alkali. Keep warm for 50 minutes and maintain the pH at 10.25.

[0074] S7: Open the top cover 4 to the limit to trigger the lifting assembly, so that the lifting rod 58 drives the toggle rod 59 to rise and automatically fish out the fabric;

[0075] S8: Post-treatment: First wash with 70℃ hot water for 10 minutes, then use 92.5℃ soap for 16 minutes, and finally rinse with cold water and dry.

[0076] Example 3

[0077] Comparing Examples 1 and 2, as another embodiment of the present invention, a one-bath two-step light alkali environmentally friendly dyeing process for polyester-cotton blended fabrics comprises the following steps:

[0078] S1: Cut the polyester-cotton blended fabric into a size that can be placed in the bleaching chamber 2 and the dyeing chamber 3;

[0079] S2: Add hydrogen peroxide bleaching agent with a concentration of 8g / L and scouring agent with a concentration of 3g / L to bleaching chamber 2;

[0080] S3: Add disperse dye, reactive dye, anti-fouling agent and pH buffer into dyeing chamber 3 at one time, the amount of anti-fouling agent is 2g / L, and the amount of pH buffer is 1g / L;

[0081] S4: Put the polyester-cotton blended fabric and close the top cover 4 to start the toggle assembly to work;

[0082] S5: Start the heating wire inside the dyeing chamber 3 and raise the temperature to 130°C for 30 minutes, then reduce the temperature to 80°C at a rate of 1.5°C / min;

[0083] S6: Add 60% of the total alkali content of the composite alkali, which is prepared by mixing 10% caustic soda, 30% soda ash and 60% triethanolamine. After running for 12 minutes, add the alkali for the second time and add the remaining 40% of the composite alkali. Keep warm for 55 minutes and maintain the pH at 10.5.

[0084] S7: Open the top cover 4 to the limit to trigger the lifting assembly, so that the lifting rod 58 drives the toggle rod 59 to rise and automatically fish out the fabric;

[0085] S8: Post-treatment: First wash with 75℃ hot water for 12 minutes, then use 95℃ soap to wash for 18 minutes, and finally rinse with cold water and dry.

[0086] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and modifications fall within the scope of the invention as claimed.

Claims

1. One-bath two-step light alkali dyeing system for polyester-cotton blended fabrics, characterized by: The invention comprises a device body (1), wherein a power source is provided inside the device body (1); a bleaching chamber (2) is provided at a position close to the left side of the top of the device body (1); a dyeing chamber (3) is provided on the right side of the bleaching chamber (2); a partition is provided between the bleaching chamber (2) and the dyeing chamber (3); both the bleaching chamber (2) and the dyeing chamber (3) are provided with a lifting and toggling mechanism; a heating wire is provided on the inner wall of the dyeing chamber (3); a time relay is provided inside the device body (1); and a top cover (4) is rotatably connected to the top of the device body (1); The lifting and toggling mechanism is used for lifting and toggling the polyester-cotton blended fabric placed above it. The lifting and toggling mechanism comprises a toggling component, a lifting component and a trigger control component. The toggling component is arranged inside the device body (1). The toggling component is used to toggle the polyester-cotton blended fabric immersed in the bleaching chamber (2) and the dyeing chamber (3) so that the dyeing and bleaching effects are more uniform. The lifting component is arranged on the front and back sides of the inner walls of the bleaching chamber (2) and the dyeing chamber (3). The lifting component is used to lift and remove the bleached or dyed fabric to facilitate the next process. The trigger control component is arranged at the top of the device body (1). The trigger control component is used to control the start timing of the toggling component and the lifting component.

2. The one-bath two-step light alkali dyeing system for polyester-cotton blended fabrics according to claim 1, characterized in that: The shifting assembly comprises a transmission chamber (41), wherein the transmission chamber (41) is opened inside the device body (1), a first motor (42) is fixedly connected inside the transmission chamber (41), an output shaft on the left side of the first motor (42) is fixedly connected to a transmission worm (43), the left side of the transmission worm (43) is rotatably connected to the inner wall of the transmission chamber (41), and the top end of the transmission worm (43) is meshed with a transmission worm wheel (44), one end of the transmission worm wheel (44) is rotatably connected to the inner wall of the transmission chamber (41), and the other end of the transmission worm wheel (44) is fixedly connected to a transmission shaft (45), two groups of the transmission shafts (45) are provided, and the outer sides of the two groups of the transmission shafts (45) are provided with a transmission belt (46), and the two groups of the transmission shafts (45) are fixedly connected to a driving gear (47), the top end of the driving gear (47) is meshed with a driving rack (48), and the driving rack (48) is slidably connected to the inside of the transmission chamber (41).

3. The one-bath two-step light alkali dyeing system for polyester-cotton blended fabrics according to claim 2, characterized in that: The lifting assembly includes a connecting block (49), the connecting block (49) is fixedly connected to the center of the driving rack (48), the end of the connecting block (49) away from the driving rack (48) is fixedly connected to a moving block (55), the interior of the moving block (55) is provided with a mounting cavity (50), the interior of the mounting cavity (50) is fixedly connected to a second motor (51), the output shaft at the bottom end of the second motor (51) is fixedly connected to a driving gear (52), the driving gear (52) The movable block (55) is meshed with a passive gear ring (53), the passive gear ring (53) is fixedly connected to the outer side of a screw sleeve (54), the screw sleeve (54) is rotatably connected to the inner wall of the movable block (55), the screw sleeve (54) is threadedly connected to a screw rod (56), the upper and lower ends of the screw rod (56) are fixedly connected to the upper and lower ends of the inner wall of a movable groove (57), the movable groove (57) is provided on a lifting rod (58), and the lifting rod (58) is arranged on the front and rear sides of the inner wall of the bleaching chamber (2) and the dyeing chamber (3).

4. The one-bath two-step light alkali dyeing system for polyester-cotton blended fabrics according to claim 3, characterized in that: The bottom end of the lifting rod (58) is fixedly connected to the toggle rod (59), the toggle rod (59) is cylindrical in design, and the combination of the lifting rod (58) and the toggle rod (59) is designed as a plow rake.

5. The one-bath two-step light alkali dyeing system for polyester-cotton blended fabrics according to claim 4, characterized in that: The trigger control assembly includes a fixing seat (60), the fixing seat (60) is fixedly connected to the top of the device body (1), and the fixing seat (60) is arranged on the rear side of the top cover (4), an active cavity (62) is opened inside the fixing seat (60), a movable block (63) is inserted inside the movable cavity (62), a spring (67) is arranged on the rear side of the movable block (63), and a first connecting piece (68) is fixedly connected to the bottom end of the rear side of the movable block (63), and the first connecting piece ( 68) fits with the second connecting piece (69), the second connecting piece (69) is fixedly connected to the fixed block (70), the fixed block (70) is fixedly connected to the bottom end of the rear side of the inner wall of the active cavity (62), the top of the active block (63) is fixedly connected with a connecting slider (65), the connecting slider (65) is slidably connected to the inside of the slide groove (66), the slide groove (66) is opened at the top of the active cavity (62), and the front end of the slide groove (66) is fixedly connected with a third connecting piece (71).

6. The one-bath two-step light alkali dyeing system for polyester-cotton blended fabrics according to claim 5, characterized in that: The front end of the fixing seat (60) is fixedly connected with a magnetic block (61), and the magnetic block (61) is attracted to the top cover (4). The bottom end of the top cover (4) is made of cast iron.

7. The one-bath two-step light alkali dyeing system for polyester-cotton blended fabrics according to claim 6, characterized in that: The front end of the movable block (63) is fixedly connected to a buffer pad (64), and the buffer pad (64) is made of rubber. The front end of the spring (67) is fixedly connected to the movable block (63), and the rear end of the spring (67) is fixedly connected to the inner wall of the movable cavity (62).

8. The one-bath two-step light alkali dyeing system for polyester-cotton blended fabrics according to claim 7, characterized in that: The connecting slider (65), the first connecting piece (68), the second connecting piece (69), the fixed block (70) and the third connecting piece (71) are all made of oxygen-free copper, and the magnetic block (61) and the movable block (63) are made of engineering plastic.

9. The one-bath two-step light alkali dyeing system for polyester-cotton blended fabrics according to claim 8, characterized in that: The first connecting piece (68) is electrically connected to the power supply via a wire, the fixed block (70) is electrically connected to the second motor (51) and the time relay via a wire, the time relay is connected to the power supply via a wire, the third connecting piece (71) is electrically connected to the power supply via a wire, the connecting slider (65) is electrically connected to the first motor (42) via a wire, and the heating wire is electrically connected to the connecting slider (65) via a wire.

10. A one-bath, two-step, low-alkali, environmentally friendly dyeing process for polyester-cotton blended fabrics, applicable to the one-bath, two-step, low-alkali dyeing system for polyester-cotton blended fabrics according to any one of claims 1 to 9, characterized in that: The process includes the following steps: S1: Cut the polyester-cotton blended fabric into a size that can be placed in the bleaching chamber (2) and the dyeing chamber (3); S2: adding hydrogen peroxide bleaching agent at a concentration of 5-8 g / L and scouring agent at a concentration of 2-3 g / L to the bleaching chamber (2); S3: Add disperse dye, reactive dye, anti-fouling agent and pH buffer into the dyeing chamber (3) at one time, the amount of anti-fouling agent is 1-2 g / L, and the amount of pH buffer is 0.5-1 g / L; S4: Put the polyester-cotton blended fabric in and close the top cover (4) to start the toggle assembly to work; S5: Start the heating wire inside the dyeing chamber (3) to heat up to 130°C and keep it at that temperature for 30 minutes, then cool it down to 80°C at a rate of 1.5°C / min; S6: Add 50-60% of the total alkali content of the compound alkali, which is prepared by mixing 10% caustic soda, 30% soda ash and 60% triethanolamine. After running for 8-12 minutes, add the alkali for the second time, add the remaining 40-50% of the compound alkali, keep warm for 45-55 minutes, and maintain the pH at 10-10.5; S7: Open the top cover (4) to the limit to trigger the lifting assembly, so that the lifting rod (58) drives the toggle rod (59) to rise and automatically fish out the cloth; S8: Post-treatment: First wash with 65-75℃ hot water for 8-12 minutes, then use 90-95℃ soap for 12-18 minutes, and finally rinse with cold water and dry.

Images