Energy-saving and environment-friendly printing and dyeing setting process for flannelette

Abstract

The present application relates to cloth dyeing and printing setting process, especially energy-saving and environment-friendly printing and dyeing setting process for velvet, comprising the following steps: singeing, desizing, mercerizing, raising, washing, printing and dyeing, soaping, soft finishing and tentering; hot air generated in the process of singeing machine singeing the velvet can be passed to the washing tank under the action of the second hydraulic pump, the hot air can also be passed to the washing mechanism, the finishing mechanism and the tentering machine for preheating, the heat generated in the previous step is used in the subsequent step, the waste heat of the high-temperature steam after flowing is recovered to the high-temperature steam machine, the high-temperature steam machine consumes less energy when heating; the first filter plate filters out sundries, the waste water is purified by the purification liquid tank, the waste and the waste water are separated, and the waste water is fully treated before being discharged, which is more environmentally friendly; the first filter plate can always adhere to the inner side wall of the purification tank and directly filter out the sundries to the upper end of the waste water, and then directly scrape off the sundries through the scraper, which has compact structure and high treatment efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the dyeing and printing process of cloth, especially the energy-saving and environment-friendly dyeing and printing process of velvet. BACKGROUND

[0002] Velvet is made of polyester fiber and is produced by needling process. The produced cloth is soft and skin-friendly, and is suitable for toy filling material, and is divided into single-sided velvet and double-sided velvet. The single-sided velvet is mainly composed of twill, also known as serge velvet, and the double-sided velvet is mainly composed of plain weave. The velvet is soft and comfortable to wear, and has good warmth retention, and is suitable for winter underwear and pajamas. In order to meet people's aesthetic needs, the velvet is usually dyed and printed. Fabric dyeing refers to the process of treating textile materials with a dye bath to cause chemical or physical-chemical combination of dyes and fibers, or to generate insoluble colored substances on the fibers.

[0003] In order to ensure the quality of the finished velvet, pretreatment is required before the dyeing and printing process, and post-treatment is required after the dyeing and printing process. However, in the existing dyeing and printing process of velvet, the recyclable resources of each process are not reused, the pollution generated during the dyeing and printing process is not well treated, and it is not energy-saving and environment-friendly. The cooperation between the mechanisms of the wastewater treatment device is not compact, and the efficiency of wastewater treatment is low. In view of the shortcomings of the prior art, the energy-saving and environment-friendly dyeing and printing process of velvet is proposed. SUMMARY

[0004] The purpose of the present application is to solve the defects proposed in the background art by proposing the energy-saving and environment-friendly dyeing and printing process of velvet.

[0005] The technical solution adopted by the present application is as follows:

[0006] The energy-saving and environment-friendly dyeing and printing process of velvet is provided, which comprises the following steps:

[0007] (1) Singeing: placing the gray cloth in the singeing machine, and singeing the side without printing in the printing single-sided velvet;

[0008] (2) Desizing: using hot water at 50-70 DEG C to fully dissolve amylase, filtering and then adding it into the water washing tank, and controlling the water temperature during hot water washing;

[0009] (3) Mercerizing: placing the gray cloth treated in step (2) into a solution tank, and configuring a concentrated caustic soda solution in the solution tank to perform mercerizing treatment on the gray cloth;

[0010] (4) Napping: placing the gray cloth treated in step (3) on a napping machine to perform napping, and washing the velvet to remove the short nap attached to the surface;

[0011] (5) washing: the cloth after step (4) is placed in the washing mechanism to wash, and the surface layer fluffy wool is removed through multiple washing, and the steam provided by the high-temperature steam machine is used for drying;

[0012] (6) printing and dyeing: the cloth after step (5) is placed in the printing and dyeing part to perform dyeing and printing, and the printing and dyeing waste water is treated through the purification tank and then reused;

[0013] (7) soaping: the dyed cloth after step (6) is placed in the soaping mechanism to perform circulating soaping, and the duration is 25 minutes;

[0014] (8) soft finishing: a mixed liquid with the mass concentration of 2.2-2.5 g / L of organic silicon NTF-3, the mass concentration of 6.5-7.5 g / L of magnesium chloride and the mass concentration of 1.0-1.2 g / L of acetic acid is configured, the dyed cloth after step (7) is placed in the mixed solution to perform padding, and the steam provided by the high-temperature steam machine is used for drying;

[0015] (9) tentering: the dyed cloth after step (8) is placed in the tentering machine to perform tentering treatment, the cloth is elongated in the radial direction and contracted in the weft direction, the high-temperature steam is introduced into the tentering machine, and the tentering temperature is controlled at 120 DEG C.

[0016] As a preferred technical scheme of the present application: the singeing machine in step (1) is communicated with the high-temperature steam machine, the washing tank in step (2), the washing mechanism in step (5), the finishing mechanism in step (8) and the tentering machine in step (9), and a second hydraulic pump is arranged between the singeing machine and the washing tank to attract hot air flow.

[0017] As a preferred technical scheme of the present application: a waste heat recovery mechanism is arranged on one side of the washing mechanism, the finishing mechanism and the tentering machine, and the waste heat recovery mechanism comprises a first hydraulic pump, which is used to recover the waste heat in the washing mechanism, the finishing mechanism and the tentering machine into the high-temperature steam machine.

[0018] As a preferred technical scheme of the present application: the printing and dyeing part in step (6) comprises a dyeing tank, a purification tank is arranged below the dyeing tank, and the purification tank is used to purify waste water.

[0019] As a preferred technical scheme of the present application: a first filter plate and a second filter plate are arranged in the purification tank, the second filter plate is located in the first filter plate, and the second filter plate is used to lengthen the length of the first filter plate.

[0020] As a preferred technical scheme of the present application: the first filter plate is located on one side in the purification tank, the first filter plate can rotate in the purification tank, and the first filter plate is used to filter out sundries.

[0021] As a preferred embodiment of the present invention: a scraper is provided at the top of the first filter plate, and the scraper can move parallel to the top of the purification box to scrape off the debris on the first filter plate.

[0022] As a preferred technical solution of the present invention: a purification liquid tank is provided on one outer wall of the purification box, and a second valve is installed at the outlet of the purification liquid tank for adding purification liquid.

[0023] Compared with the prior art, the beneficial effects of this invention are as follows: This invention utilizes a high-temperature steam engine, a purification chamber, and a first hydraulic pump. The hot air generated during the singeing process of the singeing machine on the fabric can be channeled to the washing tank by the second hydraulic pump to heat the water in the washing tank. The hot air can also be channeled to the washing mechanism, finishing mechanism, and tenter frame for preheating. Several solenoid valves are used to precisely control the flow rate of the hot air. When the high-temperature steam engine is turned on, the high-temperature steam generated can be channeled to the washing mechanism, finishing mechanism, and tenter frame for drying and tenter frame operations, respectively. The residual heat generated is then channeled back to the high-temperature steam engine by the first hydraulic pump. The dye liquor in the dyeing tank, after multiple uses, will... When impurities and wastewater are generated, open the first valve to allow the wastewater and impurities to flow into the purification tank through the outlet pipe. Start the motor, which drives the first filter plate to rotate. During the rotation of the first filter plate, the second filter plate slides out from the bottom of the first filter plate under the action of the spring, so that the bottom of the first filter plate always keeps in contact with the inner wall of the purification tank during the rotation. After the first filter plate has rotated 90 degrees, turn off the motor, pull the scraper to scrape the filtered impurities into the waste tank, open the second valve to allow the purified liquid in the purified liquid tank to flow into the purification tank, and start the motor. The motor drives the first filter plate to rotate downwards, which can be used to stir the wastewater and purified liquid to fully mix and purify them. After full purification, it can be discharged.

[0024] In the above technical solution, there is a connection between each step. The heat generated in the previous step is used in the next step. The waste heat after the high-temperature steam flows is recovered to the high-temperature steam engine, which will consume less energy when heating. Impurities are filtered out through the first filter plate, and wastewater is purified through the purification liquid tank, separating waste and wastewater. The wastewater is discharged after being fully treated, which is more environmentally friendly. The first filter plate can always be attached to the inner side wall of the purification tank and directly filter out impurities and transfer them to the top of the wastewater. Then, the impurities are directly scraped off by the scraper. The structure is compact and the treatment efficiency is high. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of a preferred embodiment of the present invention;

[0026] Figure 2 This is a partial structural schematic diagram of a preferred embodiment of the present invention;

[0027] Figure 3Fig. 2 is a partial structural schematic diagram of a preferred embodiment of the present application;

[0028] Figure 4 Fig. 3 is a structural schematic diagram of a scraper in a preferred embodiment of the present application;

[0029] Figure 5 Fig. 4 is a partial structural schematic diagram of a preferred embodiment of the present application;

[0030] Figure 6 Fig. 5 is a partial structural exploded view of a preferred embodiment of the present application;

[0031] Figure 7 Fig. 6 is a partial structural sectional view of a preferred embodiment of the present application;

[0032] Figure 8 Fig. 7 is a partial structural bottom view of a preferred embodiment of the present application.

[0033] The meanings of the various marks in the figures are as follows:

[0034] 1. Base;

[0035] 2. Pre-treatment section; 21. Singeing machine; 22. Water washing tank; 23. Solution tank; 24. Brushing machine; 25. Washing mechanism;

[0036] 3. Printing and dyeing section; 31. Dyeing tank; 32. Support column; 33. Purification box; 331. Tank body; 332. Waste box; 333. Guide rail; 3331. Guide groove; 334. Scraper; 3341. Slide block; 3343. Brush head; 3342. Clamping groove; 335. First filter plate; 3351. Cavity; 3352. Protruding block; 336. Second filter plate; 3361. Groove; 337. Rotation shaft; 338. Motor; 339. Spring; 34. Water outlet pipe; 35. First valve; 36. Drain pipe; 37. Purification liquid tank; 371. Second valve;

[0037] 4. Post-treatment section; 41. Soaping mechanism; 42. Finishing mechanism; 43. Tentering machine;

[0038] 5. High-temperature steam machine;

[0039] 6. First hydraulic pump;

[0040] 7. Second hydraulic pump;

[0041] 8. Solenoid valve. DETAILED DESCRIPTION

[0042] It should be noted that the embodiments in the present embodiment and the features in the embodiments can be combined with each other without conflict, and the technical solutions in the embodiments of the present embodiment will be described clearly and completely in conjunction with the drawings of the embodiments of the present embodiment. Obviously, the described embodiments are only part of the embodiments of the present embodiment, not all. Based on the embodiments in the present embodiment, all other embodiments obtained by those of ordinary skill in the art without creative labor belong to the scope of protection of the present embodiment.

[0043] With reference to Figures 1-8 The preferred embodiment of the present application provides an energy-saving and environment-friendly printing and dyeing setting process for flannelette, comprising the following steps:

[0044] (1) Singeing: Place the gray cloth in the singeing machine 21, and if the printed pattern is printed on the non-napped side in the printed single-sided flannelette, singe the non-napped side;

[0045] (2) Desizing: Dissolve the amylase in hot water at 60°C, filter and then add to the water washing tank 22, control the water temperature during hot water washing, and fully wash the gray cloth treated in step (2);

[0046] (3) Mercerizing: Place the gray cloth treated in step (2) in the solution tank 23, and configure a concentrated caustic soda solution in the solution tank 23 to perform mercerizing treatment on the gray cloth;

[0047] (4) Napping: Place the gray cloth treated in step (3) on the napping machine 24 to perform napping, and make flannelette, then wash the flannelette to remove the short nap attached to the surface;

[0048] (5) Washing: Place the gray cloth treated in step (4) in the napping mechanism 25 for washing, remove the surface layer of fluffy nap by multiple rinsing, and dry by the steam provided by the high-temperature steam machine 5;

[0049] (6) Printing and dyeing: Place the flannelette made in step (5) in the printing and dyeing part 3 to perform dyeing and printing, and reuse the printing and dyeing wastewater after treatment by the purification tank 33;

[0050] (7) Soaping: Place the dyed flannelette treated in step (6) in the soaping mechanism 41 to perform circulating soaping, and the duration is 25 minutes;

[0051] (8) Soft finishing: Configure a mixed liquid with a mass concentration of organosilicon NTF-3 of 2.3 g / L, a mass concentration of magnesium chloride of 7.0 g / L, and a mass concentration of acetic acid of 1.1 g / L, place the dyed flannelette treated in step (7) in the mixed solution to perform padding, and dry by the steam provided by the high-temperature steam machine 5;

[0052] (9) Tentering: the dyed wool cloth after step (8) is placed in the tentering machine 43, the wool cloth is tentered to make the wool cloth elongate in radial direction and contract in weft direction, high temperature steam is introduced into the tentering machine 43, and the tentering temperature is controlled at 120 DEG C.

[0053] The singeing machine 21 in step (1), the high temperature steam machine 5, the washing tank 22 in step (2), the washing mechanism 25 in step (5), the finishing mechanism 42 in step (8) and the tentering machine 43 in step (9) are connected by pipes, and the front pipes of the washing tank 22, the washing mechanism 25, the finishing mechanism 42 and the tentering machine 43 are provided with electromagnetic valves 8 for controlling air flow, and the second hydraulic pump 7 is arranged between the singeing machine 21 and the washing tank 22 for sucking hot air flow.

[0054] The washing mechanism 25, the finishing mechanism 42 and the tentering machine 43 are provided with waste heat recovery mechanisms on one side, and the waste heat recovery mechanisms comprise the first hydraulic pump 6 for recovering waste heat in the washing mechanism 25, the finishing mechanism 42 and the tentering machine 43 to the high temperature steam machine 5.

[0055] The printing and dyeing part 3 in step (6) comprises a dyeing tank 31, and the lower part of the dyeing tank 31 is provided with a purification tank 33 for purifying waste water.

[0056] The inside of the purification tank 33 is provided with a first filter plate 335 and a second filter plate 336, and the second filter plate 336 is located in the first filter plate 335, and the second filter plate 336 is used for lengthening the length of the first filter plate 335.

[0057] The top end of the first filter plate 335 is provided with a scraper 334, and the scraper 334 can move in parallel at the top end of the purification tank 33, and is used for scraping off sundries on the first filter plate 335.

[0058] The side wall of the purification tank 33 is provided with a purification liquid tank 37, and the outlet of the purification liquid tank 37 is provided with a second valve 371 for adding purification liquid.

[0059] The device of the energy-saving and environment-friendly printing and dyeing setting process for the velvet cloth of the embodiment comprises a base 1, the top end of the base 1 is provided with a pretreatment part 2, a printing and dyeing part 3 and a post-treatment part 4, the pretreatment part 2 comprises a singeing machine 21, a washing tank 22, a solution tank 23, a raising machine 24 and a washing mechanism 25 in sequence according to the process steps, the singeing machine 21 is used for burning off the short pile hair existing on the surface of the velvet cloth to prevent affecting the surface finish of the velvet cloth; the washing tank 22 is used for desizing and kiering the velvet cloth to prevent the sizing on the velvet cloth from affecting the wettability of the fabric during the dyeing and printing process and hindering the contact of chemicals with the fiber; the solution tank 23 is used for mercerizing the velvet cloth, the velvet cloth after the alkali treatment has strong and soft luster; the raising machine 24 can spread the short fibers into a net shape, interweave different fibers together, intertangle and fix them to make the fabric standardized, make the velvet cloth soft, full, thick and stiff to achieve different thicknesses to meet the use requirements; the washing mechanism 25 is used for washing off the floating pile hair on the surface of the velvet cloth after raising to facilitate the subsequent dyeing and printing.

[0060] The post-treatment part 4 comprises a soaping mechanism 41, a finishing mechanism 42 and a tentering machine 43; the soaping mechanism 41 is used for improving the color fastness and brilliance, using soap or detergent solution to clean the dyes, the used dyeing assistants, the printing sizing and the like on the surface under near-boiling conditions.

[0061] The finishing mechanism 42 makes the velvet cloth soft and stiff by padding the velvet cloth; the tentering machine 43 improves the hand feeling, sliding, color, width, strength and appearance of the velvet cloth by setting the velvet cloth, and can also stabilize the size of the non-pure cotton products.

[0062] The printing and dyeing part 3 comprises a dyeing tank 31, support columns 32 are fixedly connected at the bottom corners of the dyeing tank 31, a water outlet pipe 34 is arranged at the bottom end of the dyeing tank 31, a first valve 35 is installed on the water outlet pipe 34, a purification tank 33 is arranged below the water outlet pipe 34, the purification tank 33 comprises a tank body 331, a purification liquid tank 37 is fixedly connected to the side wall of the tank body 331, a waste tank 332 is arranged on the other side of the tank body 331 for collecting sundries.

[0063] Guide rails 333 are fixedly connected to the front and rear sides of the top end of the tank body 331, guide grooves 3331 are formed in the outer side walls of the two guide rails 333, a scraper 334 is arranged between the two guide rails 333, clamping grooves 3342 are formed in the bottom ends of the two ends of the scraper 334, the two guide rails 333 are respectively located in the two clamping grooves 3342, sliding blocks 3341 are fixedly connected to the inner side walls of the two ends of the scraper 334, the two sliding blocks 3341 can respectively slide in parallel in the two guide grooves 3331, a brush head 3343 is fixedly connected to the middle of the bottom end of the scraper 334, the above technical solution can scrape the sundries on the surface of the first filter plate 335 into the waste tank 332.

[0064] The top end of the first filter plate 335 is fixedly connected with a rotating shaft 337, the rear end of the rotating shaft 337 rotatably extends into the rear side inner wall of the groove body 331, the front end of the rotating shaft 337 rotatably penetrates through the front side wall of the groove body 331, the front side outer wall of the groove body 331 is provided with a motor 338, the output shaft of the motor 338 is coaxially connected with the rotating shaft 337, and the technical scheme is to ensure that the first filter plate 335 can filter sundries to the upper side of wastewater, so that the sundries are conveniently cleaned.

[0065] The bottom of the first filter plate 335 is provided with a cavity 3351, the bottom end of the first filter plate 335 is fixedly connected with a protrusion 3352 on the inner wall of each side, the cavity 3351 is provided with a second filter plate 336, the two ends of the second filter plate 336 are provided with grooves 3361, the two protrusions 3352 are respectively slidably arranged in the two grooves 3361, the top end of the inside of the first filter plate 335 and the top end of the second filter plate 336 are fixedly connected with two springs 339, when the bottom end of the first filter plate 335 and the bottom end of the second filter plate 336 are flush, the two springs 339 are in a compressed state, and the technical scheme ensures that the length of the first filter plate 335 can be lengthened by the second filter plate 336.

[0066] The bottom end of the groove body 331 is provided with a drain pipe 36 for discharging treated water.

[0067] The energy-saving and environment-friendly printing and dyeing setting process for the velvet cloth, the hot gas generated by the singeing machine 21 in the process of singeing the velvet cloth can pass to the washing tank 22 under the action of the second hydraulic pump 7, the hot gas can also pass to the washing mechanism 25, the finishing mechanism 42 and the tentering machine 43 for preheating, and the plurality of electromagnetic valves 8 are used for accurately controlling the hot gas flow;

[0068] The high-temperature steam machine 5 is started, the high-temperature steam generated by the high-temperature steam machine 5 can pass to the washing mechanism 25, the finishing mechanism 42 and the tentering machine 43 respectively, and is used for drying and tentering respectively, and the waste heat generated is led to the high-temperature steam machine 5 again under the action of the first hydraulic pump 6;

[0069] The dyeing liquid in the dyeing tank 31 will produce sundries and waste water after multiple uses, open the first valve 35, make the waste water and sundries flow into the purification tank 33 through the water outlet pipe 34, start the motor 338, the motor 338 drives the first filter plate 335 to rotate, in the process of rotating of the first filter plate 335, the second filter plate 336 slides out from the bottom of the first filter plate 335 under the action of the spring 339, so that the bottom of the first filter plate 335 always adheres to the inner side wall of the purification tank 33 in the process of rotating, until the first filter plate 335 rotates 90 degrees, close the motor 338, pull the scraper 334, scrape the filtered sundries to the waste tank 332, open the second valve 371, make the purification liquid in the purification liquid tank 37 flow into the purification tank 33, start the motor 338, the motor 338 drives the first filter plate 335 to rotate downward to be used for stirring the waste water and the purification liquid to mix and purify fully, after fully purifying, it can be discharged through the drain pipe 36;

[0070] It will be obvious to a person skilled in the art that, without departing from the spirit or essential characteristics of the application, the present application can be implemented in other specific forms. The present examples are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the specification as such. All the patents, scientific articles, and books cited herein are incorporated by reference in their entirety.

[0071] Furthermore, it should be understood that although the present specification describes particular embodiments, each of which contains only a single independent technical solution, the specification is written in such a way as to be clear for the sake of clarity, and a person skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by a person skilled in the art.

Claims

1. An energy-saving and environmentally friendly printing, dyeing, and setting process for velvet fabric, characterized by: Includes the following steps: (1) Singeing: Place the blank in the singeing machine (21). If the printed pattern is printed on the non-pilling side of the single-sided fleece, singe the non-pilling side. (2) Desizing: Use hot water at 50-70℃ to fully dissolve the amylase, filter it and then add it to the washing tank (22). Control the water temperature during hot water washing and fully wash the fabric after step (2). (3) Mercerizing: The fabric after step (2) is placed in a solution tank (23), which contains a concentrated caustic soda solution to mercerize the fabric. (4) Pile raising: The blank processed in step (3) is placed on a pile raising machine (24) to raise the pile and make it into a pile cloth. Then the pile cloth is washed to remove the short pile attached to the surface. (5) Washing: The blanks processed in step (4) are placed in the washing mechanism (25) for washing. The surface fluff is removed by rinsing multiple times, and then dried by steam provided by the high-temperature steam engine (5). (6) Printing and dyeing: The velvet fabric made in step (5) is placed in the printing and dyeing section (3) for dyeing and printing. The printing and dyeing wastewater is treated by the purification box (33) and then reused. (7) Soap washing: The dyed velvet treated in step (6) is placed inside the soap washing mechanism (41) for cyclic soap washing for 25 minutes. (8) Softening and finishing: Prepare a mixed liquid with a mass concentration of 2.2 to 2.5 g / L of organosilicon NTF-3, a mass concentration of 6.5 to 7.5 g / L of magnesium chloride, and a mass concentration of 1.0 to 1.2 g / L of acetic acid. Place the dyed flock after step (7) into the mixed solution for padding and dry it with steam provided by a high-temperature steam generator (5). (9) Stretching: The dyed fleece fabric after step (8) is placed in the tenter frame (43) and the fleece fabric is stretched to make the fleece fabric stretch radially and shrink in the weft direction. High temperature steam is introduced into the tenter frame (43) and the stretching temperature is controlled at 120℃. The singeing machine (21) in step (1) is connected to the high-temperature steam engine (5), the washing tank (22) in step (2), the sifting mechanism (25) in step (5), the finishing mechanism (42) in step (9), and the tenter frame (43) in step (9). A second hydraulic pump (7) is provided between the singeing machine (21) and the washing tank (22) to draw in hot air. A waste heat recovery mechanism is provided on one side of the sifting mechanism (25), the finishing mechanism (42), and the tenter frame (43). The waste heat recovery mechanism includes a first hydraulic pump (6), which is used to recover the waste heat in the sifting mechanism (25), the finishing mechanism (42), and the tenter frame (43) to the high-temperature steam engine (5). The dyeing section (3) in step (6) includes a dyeing tank (31). A purification box (33) is provided below the dyeing tank (31). The purification tank (33) is used to purify wastewater. The purification tank (33) is equipped with a first filter plate (335) and a second filter plate (336) inside. The second filter plate (336) is located inside the first filter plate (335) and is used to lengthen the first filter plate (335). The first filter plate (335) is located on one side inside the purification tank (33) and can rotate inside the purification tank (33). The first filter plate (335) is used to filter out impurities. The top of the first filter plate (335) is equipped with a scraper (334). The scraper (334) can move parallel to the top of the purification tank (33) and is used to scrape off the impurities on the first filter plate (335). A purification liquid tank (37) is provided on one side of the outer wall of the purification tank (33). A second valve (371) is installed at the outlet of the purification liquid tank (37) for adding purification liquid.

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