Spun-wool twill silk refining equipment and process

Through improved temperature control and circulation system, the problems of inaccurate temperature control, high energy consumption and large wastewater discharge in the refining of silk are solved, and efficient and environmentally friendly refining effects are achieved, and fabric quality and production efficiency are improved.

CN120505761APending Publication Date: 2025-08-19ZIBO DARANFANG SILK GRP +1
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Patent Information

Application Number
CN202510986635.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-17
Publication Date
2025-08-19

AI Technical Summary

Technical Problem

The traditional silk twill refining process has problems such as poor temperature control accuracy, high energy consumption, large wastewater discharge, and easy blockage of the circulation system, resulting in serious fiber damage and residual impurities affecting the quality of the fabric, and is not environmentally friendly.

Method used

The temperature control system and circulation pump system are adopted, combined with pneumatic valve stable temperature control and improved circulation system, including installation mechanism and flushing mechanism, to achieve precise temperature control and impurity removal, and reduce fiber damage and wastewater discharge.

Benefits of technology

It improves the whiteness, softness and dyeing performance of the fabric, reduces fiber damage, reduces energy consumption and wastewater discharge, meets environmental protection requirements, and improves production efficiency.

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Abstract

The invention discloses a silk wool twill silk refining device and technology, and relates to the technical field of silk processing, and the method comprises the following specific steps: pretreatment, primary refining, secondary refining, low temperature oxidation bleaching and water washing. According to the refining process flow, the steps of pretreatment, primary refining, secondary refining, bleaching, water washing and the like are optimally combined, and a temperature control system and a circulating pump system are combined for use, so that impurities, grease and protein substances on the surface of the silk-wool twill gray fabric can be efficiently removed, and the whiteness, softness and dyeing performance of the fabric are improved; the scouring effect is obviously better than that of a traditional process, mild scouring conditions and scouring agents are adopted, damage to silk wool fibers is effectively reduced, and the strength and durability of the fabric are improved. The washing step is optimized, waste of water resources is reduced, meanwhile, by reasonably controlling the dosage and variety of the scouring agent, the wastewater discharge and treatment difficulty is lowered, and the requirements for environmental protection and sustainable development are met.
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Description

Technical Field

[0001] The invention relates to the technical field of silk processing, in particular to a scouring device and process for silk twill silk. Background Art

[0002] Silk wool twill is a high-end textile fabric that combines the characteristics of silk and wool, with a soft feel, unique luster, and excellent thermal insulation. However, in the production process of silk wool twill, the scouring process plays a key role in removing impurities and grease from the fiber surface and improving the fabric's whiteness, softness, and dyeing properties. Traditional scouring processes have many problems, such as poor scouring results, resulting in residual impurities in the fabric that affect quality; significant fiber damage during the scouring process, which reduces the fabric's strength and durability; and production practice has proven that silk wool twill has very high requirements for scouring temperatures, which must be strictly controlled at 90±0.5°C. However, traditional scouring processes use manual adjustment of steam valves to control the scouring liquid temperature, resulting in poor temperature control accuracy and uncertainty due to temperature fluctuations. At the same time, traditional processes have high energy consumption and large wastewater discharge, which do not meet the requirements of environmental protection and sustainable development. Traditional silk wool twill scouring often uses strong alkali, high-temperature, and low-temperature protease treatments, which have the following defects: 1. When using traditional technology and equipment to scour silk twill, the protein structure of silk and animal hair fibers is easily damaged, resulting in yellowing of the fabric and reduced strength; 2. The process is long, and the energy consumption required for equipment and production is high (temperature>98℃); 3. Although bio-enzyme scouring is environmentally friendly, its effect on silk-wool composite fibers is uneven, and it is difficult to remove sericin and wool scale impurities at the same time.

[0003] 4. Traditional processes and equipment have the problem of large water consumption. Different from other material fabrics, they need to prepare scouring liquid separately, the COD value of wastewater is high, and the cost of wastewater treatment is high.

[0004] 5. Although the pump used for circulation drive is also equipped with a filtering device, it is easily blocked by wool impurities and requires frequent shutdown for cleaning and maintenance, which seriously affects the operating efficiency and increases the labor intensity of workers.

[0005] In view of this, a silk twill scouring equipment and process are provided to solve the problems of low fiber strength retention and high pollutant emissions in the existing process. Combined with the supporting scouring equipment, the problems of high production energy consumption, large wastewater discharge and easy clogging of the filtering device of the circulation system are solved. Summary of the Invention

[0006] The purpose of the present invention is to provide a silk twill scouring device and process in order to solve the technical problems in the background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a silk wool twill refining device, comprising a refining barrel, a temperature control system is provided in the refining barrel, the temperature control system comprises more than four temperature sensors, each of the temperature sensors is distributed in the refining barrel, the refining barrel is connected to a circulation system, the circulation system comprises a circulation pump, the circulation pump comprises a pump body, both ends of the pump body are fixedly connected with a connecting pipe and a liquid outlet pipe, one end of the connecting pipe is fixedly connected with a filter cover, the bottom end of the filter cover is equipped with a filter cartridge, the outer wall of the filter cover is fixedly connected with a liquid inlet pipe, the refining barrel is connected with the liquid inlet pipe and the liquid outlet pipe respectively through an electromagnetic valve; the inner cavity of the filter cartridge is equipped with a filter element, the filter element is connected to the filter cover. The installation operation is performed through the installation mechanism, and the filter element is backwashed by the flushing mechanism. The installation mechanism includes a docking ring, the docking ring is fixedly connected to the bottom end of the filter cover, and the outer wall of the docking ring is symmetrically provided with a fixing groove, the inner cavity of the filter cartridge is fixedly connected to a placement plate with a placement groove, the filter element is placed on the inner wall of the placement plate, and the top of the filter cartridge is symmetrically provided with a slide groove, the inner wall of the slide groove is slidably connected to a fixing rod, the outer wall of the filter cartridge is rotatably connected to a rotating ring, the interior of the filter cartridge is located at the outer wall of the rotating ring and is rotatably connected to a first bevel gear, one end of the first bevel gear is fixedly connected to a threaded rod, and the threaded rod passes through the fixing rod.

[0008] As a further solution of the present invention: the flushing mechanism includes a first guide tube, the first guide tube is fixedly connected to the middle outer wall of the liquid outlet tube, the middle outer wall of the liquid inlet tube is fixedly connected to the second guide tube, one end of the first guide tube and the second guide tube are fixedly connected to the connecting tube, the connection position of the liquid inlet tube and the second guide tube and the connection position of the liquid outlet tube and the first guide tube are fixedly connected to a mounting seat, the inner wall of the mounting seat is rotatably connected to a rotating disk, the interior of the rotating disk is provided with a T-shaped groove, which is fixedly connected in the connecting tube and between the first guide tube and the second guide tube. There is a connecting seat, the inner wall of the connecting seat is rotatably connected to the baffle, the outer walls of the liquid inlet pipe and the liquid outlet pipe are fixedly connected to the mounting bracket, the outer wall of the mounting bracket is installed with a motor, the output end of the motor is connected to the first spur gear, the first spur gear is fixedly connected to the baffle, the outer wall of the first spur gear is provided with an intermediate gear rod, the bottom end of the intermediate gear rod is fixedly connected to a movable frame with a U-shaped structure, the movable frame is slidably connected to the inner wall of the mounting bracket, side gear rods are symmetrically and vertically provided on both sides of the movable frame, the side walls of the side gear rods are provided with second spur gears, and the second spur gear is fixedly connected to the rotating disk.

[0009] The top end face of said filter is fixedly provided with a toothed box, and the toothed box is installed in a direction of rotation and is convenient to use and can be used for filtering the filter bag and the filter bag.

[0010] As a further solution of the present invention: the inner wall of the rotating ring is provided with gear teeth, and the gear teeth are engaged with the first bevel gear.

[0011] As a further solution of the present invention: a threaded hole is opened on the outer wall of the fixing rod, the threaded hole matches the threaded rod, and the inner wall of the sliding groove fits with the outer wall of the fixing rod.

[0012] As a further solution of the present invention: the fixing rod is L-shaped, the outer wall of the fixing rod is in contact with the inner wall of the fixing groove, and the inner wall of the placement plate is in contact with the bottom outer wall of the filter element.

[0013] As a further solution of the present invention, the second bevel gear is meshed with the third bevel gear, and the third spur gear is meshed with the fourth spur gear.

[0014] As a further solution of the present invention: the inner wall of the fourth spur gear fits in contact with the outer wall of the rotating rod, and the inner wall of the vertical groove fits in contact with the outer wall of the horizontal block.

[0015] As a further solution of the present invention: the outer wall of the middle gear rod is provided with a first tooth groove, the first tooth groove is engaged with the first spur gear, and the outer walls of the two side gear rods of the movable frame are provided with a second tooth groove, the second tooth groove is engaged with the second spur gear.

[0016] The scouring production process using a silk twill scouring device of the present invention comprises the following specific steps: Step 1: Pretreatment: Place the silk twill fabric into a scouring barrel with water temperature controlled at 40°C, turn on the temperature control system, preset the indirect temperature of the temperature controller to 39.5°C, and start the circulation system. Soak for 15-20 minutes to fully moisten the fabric and improve the penetration effect of subsequent scouring; Step 2: Initial practice; Add the necessary additives for scouring into the scouring barrel according to the following proportions: Soda ash 2.3-2.5g / L; Na2SiO3 2.3-2.5g / L; 630 detergent 4.5-5g / L; Dispersant 10-12g / L; Adjust the pH value of the aqueous solution in the scouring barrel to 11-11.5, preset the indirect temperature of the temperature controller to 90°C through the temperature control system, set the bath ratio to 1:30, and scouring time to 120 minutes. During the scouring process, open the circulation system to make the temperature of the scouring liquid consistent. Step 3: Re-practice; Add the additives needed for retraining into the training barrel according to the following proportions: Soda ash 5.5-5.7g / L; Na2SiO32.3-2.5g / L; Dispersant 10-12g / L; Adjust the pH value of the aqueous solution in the scouring barrel to 11-11.5, preset the indirect temperature of the temperature controller to 90°C through the temperature control system, put the silk twill fabric into the barrel according to the bath ratio of 1: (30-32) and soak it for 80 minutes; during the re-scouring, keep the circulation system open to further remove residual impurities and protein substances; Step 4: low temperature oxidative bleaching; First, lift the silk wool twill fabric with a crane, and add the auxiliary agents required for re-scoring into the scouring barrel according to the following proportions: Na2SiO31-1.5g / L; Hydrogen peroxide 3-3.5g / L; Start the circulation system for 10 minutes to allow the auxiliaries to fully disperse, then adjust the pH value to 6.5-7.0. Slowly hoist the silk twill fabric into the scouring barrel and start the temperature control system. Set the indirect temperature of the temperature controller to 55°C and scour for 50-60 minutes to allow the refined sericin and oil impurities to be separated from the fabric. Step 5: Washing; the grey fabric after step 4 is processed in sequence: Wash with hot water at 70-75℃ for 15-20 minutes; Wash with medium-temperature water, water temperature 40-50℃, 15-20 minutes; Wash with cold water at 30-35℃ for 15-20 minutes; Thoroughly remove the scouring agent and impurities on the surface of the grey cloth. The washing process requires that the silk twill grey cloth is slowly put into water and then automatically lifted repeatedly to start the water circulation; after washing, it is dehydrated and dried at a drying temperature of 85-100℃.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. The scouring process of the present invention, through an optimized combination of pretreatment, primary scouring, rescouring, bleaching, and washing steps, combined with the use of a pneumatic valve stable temperature control system and a circulating pump system, can efficiently remove impurities, grease, and proteinaceous substances from the surface of silk twill grey fabric, improving the fabric's whiteness, softness, and dyeing properties. The scouring effect is significantly superior to that of traditional processes. The use of mild scouring conditions and a dedicated scouring agent effectively reduces damage to silk and wool fibers and improves the fabric's strength and durability. The optimized washing step reduces water waste, while the rational control of the amount and type of scouring agent reduces wastewater discharge and treatment difficulty, thus meeting the requirements of environmental protection and sustainable development.

[0018] 2. The present invention improves the filtration function within the circulation system and is provided with an installation mechanism and a flushing mechanism. The operation of the motor drives the baffle to rotate, the rotating disk to rotate, and simultaneously drives the partition to move upward. The upward displacement of the partition opens the sewage pipe; the rotation of the baffle closes the connecting pipe; the rotation of the rotating disk connects the liquid inlet pipe with the second guide pipe and the liquid outlet pipe with the first guide pipe. As a result, liquid directly enters the second guide pipe through the liquid inlet pipe, then enters the liquid outlet pipe, the first guide pipe, and the connecting pipe, and enters the inner cavity of the filter cartridge through the connecting pipe, performing a backwashing operation on the filter element. The flushed sewage is discharged through the sewage pipe, facilitating the rapid installation and removal of the filter element. The filter element filters the liquid and can automatically backwash the filter element at the same time. The improvement of the refining equipment described in the present invention can effectively reduce the occurrence of clogging of the filter element by filamentous impurities generated by scouring, eliminating the need for frequent shutdown to clean and replace the filter element, and can extend the service life of the filter element by backwashing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 This is a schematic diagram of the connection between the filter cover and the filter cartridge of the present invention; Figure 3 Schematic diagram of the installation of the filter element of the present invention; Figure 4 is a cross-sectional view of the filter cartridge of the present invention; Figure 5 is a cross-sectional view of a separator of the present invention; Figure 6is a cross-sectional view of a fourth spur gear of the present invention; Figure 7 This is a schematic diagram of the installation of the rotating disk of the present invention; Figure 8 is a cross-sectional view of a rotating disk of the present invention; Figure 9 This is a schematic diagram of the installation of the mounting bracket of the present invention; Figure 10 It is a structural schematic diagram of the movable frame of the present invention.

[0020] Figure: 1, liquid inlet pipe; 2, filter cover; 201, liquid inlet conduit; 202, liquid outlet conduit; 3, filter cartridge; 4, filter element; 5, connecting pipe; 6, pump body; 7, liquid outlet pipe; 8, mounting mechanism; 801, docking ring; 802, fixing groove; 803, placement plate; 804, slideway; 805, fixing rod; 806, rotating ring; 807, first bevel gear; 808, threaded rod; 9, flushing mechanism; 901, first guide tube; 902, second guide tube; 903, mounting seat; 904, rotating disk; 905, T-shaped Groove; 906, connecting seat; 907, baffle; 908, mounting bracket; 909, motor; 910, first spur gear; 911, intermediate gear rod; 912, movable bracket; 913, second spur gear; 914, connecting bracket; 915, second bevel gear; 916, third bevel gear; 917, third spur gear; 918, fourth spur gear; 919, partition; 920, spring; 921, limit rod; 922, rotating rod; 923, block; 924, vertical groove; 925, horizontal block; 926, sewage pipe; 10, training barrel. DETAILED DESCRIPTION

[0021] 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.

[0022] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and should not be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, they can be fixedly connected, detachably connected, or connected in one piece; they can be mechanically connected or electrically connected; they can be directly connected, or indirectly connected through an intermediate medium, or they can be internal connections between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following describes an embodiment of the present invention based on its overall structure. Example 1

[0023] See also Figures 1 to 10 In an embodiment of the present invention, a silk twill refining device includes a refining barrel 10, a temperature control system is provided in the refining barrel 10, the temperature control system includes four or more temperature sensors, each of the temperature sensors is distributed in the refining barrel 10, the refining barrel 10 is connected to a circulation system, the circulation system includes a circulation pump, the circulation pump includes a pump body 6, the two ends of the pump body 6 are respectively fixedly connected with a connecting pipe 5 and a liquid outlet pipe 7, one end of the connecting pipe 5 is fixedly connected with a filter cover 2, the bottom end of the filter cover 2 is equipped with a filter cartridge 3, the outer wall of the filter cover 2 is fixedly connected with a liquid inlet pipe 1, the refining barrel 10 is respectively connected with the liquid inlet pipe 1 and the liquid outlet pipe 7 through a solenoid valve; the inner cavity of the filter cartridge 3 is equipped with a filter element 4, and the filter element 4 is installed and operated by an installation mechanism 8 The filter element 4 is backwashed by the flushing mechanism 9. The installation mechanism 8 includes a docking ring 801, which is fixedly connected to the bottom end of the filter cover 2. The outer wall of the docking ring 801 is symmetrically provided with a fixing groove 802. The inner cavity of the filter cartridge 3 is fixedly connected with a placement plate 803 with a placement groove. The filter element 4 is placed on the inner wall of the placement plate 803. The top of the filter cartridge 3 is symmetrically provided with a slide groove 804. The inner wall of the slide groove 804 is slidingly connected with a fixed rod 805. The outer wall of the filter cartridge 3 is rotatably connected with a rotating ring 806. The interior of the filter cartridge 3 is located on the outer wall of the rotating ring 806 and is rotatably connected with a first bevel gear 807. One end of the first bevel gear 807 is fixedly connected with a threaded rod 808, and the threaded rod 808 passes through the fixed rod 805.

[0024] In this embodiment: the filter element 4 is a hollow cylindrical structure with a filtrate outlet at the upper end; an L-shaped liquid inlet conduit 201 is provided in the filter cover 2, one end of which is connected to the liquid inlet pipe 1 and the other end is connected to the inner cavity of the filter cylinder 3, and an L-shaped liquid outlet conduit 202 is also provided, one end of which is connected to the connecting pipe 5 and the other end is connected to the filtrate outlet of the filter element 4.

[0025] When installing the filter element 4, place the filter element 4 into the inner wall of the placement groove of the placement plate 803, and then connect the filter cartridge 3 to the bottom end of the filter cover 2, and then rotate the rotating ring 806. The rotating ring 806 rotates to drive the first bevel gear 807 to rotate, and the first bevel gear 807 rotates to drive the threaded rod 808 to rotate. The threaded rod 808 rotates to drive the fixing rod 805 to move. The fixing rod 805 moves in the slide groove 804 until the outer wall of the fixing rod 805 contacts the outer wall of the docking ring 801, thereby fixing the filter cover 2 and the filter cartridge 3, and thus installing the filter element 4; the pump body 6 runs, and the liquid flows into the filter cartridge 3 through the liquid inlet pipe 1, and the filter element 4 filters the liquid. The filtered liquid enters the connecting pipe 5 and the pump body 6 through the filtrate outlet and the liquid outlet conduit 202, and then flows into the liquid outlet pipe 7.

[0026] Please refer to Figures 4 to 10 The flushing mechanism 9 includes a first guide tube 901, which is fixedly connected to the middle outer wall of the liquid outlet pipe 7, and a second guide tube 902 is fixedly connected to the middle outer wall of the liquid inlet pipe 1. One end of the first guide tube 901 and the second guide tube 902 are both fixedly connected to the connecting pipe 5. The connection position between the liquid inlet pipe 1 and the second guide tube 902 and the connection position between the liquid outlet pipe 7 and the first guide tube 901 are both fixedly connected with a mounting seat 903. The inner wall of the mounting seat 903 is rotatably connected with a rotating disk 904. A T-shaped slot 905 is provided inside the rotating disk 904. A connecting seat 906 is fixedly connected in the connecting pipe 5 and between the first guide tube 901 and the second guide tube 902. The connecting seat The inner wall of 906 is rotatably connected to a baffle 907, and the outer walls of the liquid inlet pipe 1 and the liquid outlet pipe 7 are fixedly connected to a mounting frame 908. A motor 909 is installed on the outer wall of the mounting frame 908, and the output end of the motor 909 is connected to a first spur gear 910. The first spur gear 910 is fixedly connected to the baffle 907. The outer wall of the first spur gear 910 is provided with an intermediate gear rod 911, and the bottom end of the intermediate gear rod 911 is fixedly connected to a movable frame 912 with a U-shaped structure. The movable frame 912 is slidably connected to the inner wall of the mounting frame 908. Side gear rods are symmetrically and vertically provided on both sides of the movable frame 912, and the side walls of the side gear rods are provided with a second spur gear 913. The second spur gear 913 is fixedly connected to the rotating disk 904.

[0027] The flushing mechanism 9 also includes a connecting frame 914, which is fixedly connected to the bottom end of the movable frame 912. One end of the threaded rod 808 is fixedly connected to the second bevel gear 915. The interior of the filter cartridge 3 is located on the outer wall of the second bevel gear 915 and is rotatably connected to the third bevel gear 916. The bottom end of the third bevel gear 916 is fixedly connected to the third spur gear 917 through a connecting rod. The interior of the filter cartridge 3 is located on the outer wall of the third spur gear 917 and is rotatably connected to the fourth spur gear 918. The bottom end of the filter cartridge 3 is fixedly connected to a drain pipe 926. The top of the drain pipe 926 is fixedly connected to the drain pipe 926. A partition 919 is provided at the end, and a spring 920 is connected between the partition 919 and the placement plate 803. One side of the bottom end of the partition 919 is fixedly connected to a limit rod 921, and the limit rod 921 is slidably connected to the inside of the filter cartridge 3. The other side of the bottom end of the partition 919 is rotatably connected to a rotating rod 922, which passes through the fourth spur gear 918 and extends out of the filter cartridge 3. The bottom end of the rotating rod 922 is fixedly connected to two blocking blocks 923, and the outer wall of the rotating rod 922 is provided with a vertical groove 924. The inner wall of the fourth spur gear 918 is fixedly connected to a horizontal block 925.

[0028] In this embodiment: when the filter cover 2 and the filter cartridge 3 are fixedly connected, the threaded rod 808 rotates and drives the second bevel gear 915 to rotate at the same time, the second bevel gear 915 rotates and drives the third bevel gear 916 to rotate, the third bevel gear 916 rotates and drives the third spur gear 917 to rotate, the third spur gear 917 rotates and drives the fourth spur gear 918 to rotate, the fourth spur gear 918 rotates and drives the rotating rod 922 to rotate through the cross block 925, the rotating rod 922 rotates and drives the clamping block 923 to rotate one hundred and eighty degrees, so that the bottom of the connecting frame 914 is engaged between the two clamping blocks 923, so that the connecting frame 914 and the rotating rod 922 can be moved up and down synchronously.

[0029] When the filter element 4 needs to be backwashed, the motor 909 is started. The operation of the motor 909 drives the first spur gear 910 to rotate. The rotation of the first spur gear 910 drives the baffle 907 to rotate. The rotation of the first spur gear 910 drives the intermediate gear rod 911 to move upward. The displacement of the intermediate gear rod 911 drives the movable frame 912 to move. The displacement of the movable frame 912 drives the second spur gear 913 to rotate. The rotation of the second spur gear 913 drives the rotating disk 904 to rotate, thereby causing the T-slot 905 in the rotating disk 904 to rotate. At the same time, the displacement of the movable frame 912 drives the connecting frame 914 to move. The displacement of the connecting frame 914 drives the rotating rod 922 to move. The displacement of the rotating rod 922 drives the partition 919 to move upward.

[0030] The partition 919 moves upward to open the sewage pipe 926; the baffle 907 rotates to close the connecting pipe 5; the rotating disk 904 rotates to connect the liquid inlet pipe 1 with the second guide pipe 902, and the liquid outlet pipe 7 with the first guide pipe 901; thereby, the liquid directly enters the second guide pipe 902 through the liquid inlet pipe 1, and then enters the liquid outlet pipe 7, the first guide pipe 901 and the connecting pipe 5, and enters the inner cavity of the filter cartridge 3 through the connecting pipe 5, and the filter element 4 is backwashed, and the flushed sewage is discharged through the sewage pipe 926.

[0031] This design not only facilitates the quick installation and removal of the filter element 4, but also enables the filter element 4 to filter the liquid and automatically backwash the filter element 4 by changing the flow direction of the liquid.

[0032] Please refer to Figures 1 to 5 The inner wall of the rotating ring 806 is provided with gear teeth, which mesh with the first bevel gear 807.

[0033] In this embodiment: the filter element 4 is placed into the inner wall of the placement plate 803, and then the filter cartridge 3 is connected to the bottom end of the filter cover 2, and the fixing rod 805 is inserted into the fixing groove 802, and then the rotating ring 806 is rotated, and the rotating ring 806 rotates to drive the first bevel gear 807 to rotate.

[0034] Please refer to Figures 1 to 5 A threaded hole is provided on the outer wall of the fixing rod 805, which matches the threaded hole 808. The inner wall of the slide groove 804 fits in with the outer wall of the fixing rod 805. The shape of the fixing rod 805 is L-shaped. The outer wall of the fixing rod 805 fits in with the inner wall of the fixing groove 802, and the inner wall of the placement plate 803 fits in with the outer wall of the bottom of the filter element 4.

[0035] In this embodiment: the first bevel gear 807 rotates to drive the threaded rod 808 to rotate, and the threaded rod 808 rotates to drive the fixed rod 805 to move, and the fixed rod 805 moves in the slide groove 804 until the outer wall of the fixed rod 805 contacts the outer wall of the docking ring 801, thereby fixing the filter cover 2 and the filter cartridge 3.

[0036] Please refer to Figures 4 to 10 The second bevel gear 915 is meshed with the third bevel gear 916 , and the third spur gear 917 is meshed with the fourth spur gear 918 .

[0037] In this embodiment: the threaded rod 808 rotates to drive the second bevel gear 915 to rotate, the second bevel gear 915 rotates to drive the third bevel gear 916 to rotate, the third bevel gear 916 rotates to drive the third spur gear 917 to rotate, the third spur gear 917 rotates to drive the fourth spur gear 918 to rotate, and the fourth spur gear 918 rotates through the cross block 925 to drive the rotating rod 922 to rotate.

[0038] Please refer to Figures 4 to 10 The inner wall of the fourth spur gear 918 fits with the outer wall of the rotating rod 922 , and the inner wall of the vertical slot 924 fits with the outer wall of the horizontal block 925 .

[0039] In this embodiment, the motor 909 drives the first spur gear 910 to rotate, the rotation of the first spur gear 910 drives the baffle 907 to rotate, the rotation of the first spur gear 910 drives the middle gear rod 911 to move upward, and the displacement of the middle gear rod 911 drives the movable frame 912 to move.

[0040] Please refer to Figures 4 to 10 The outer wall of the middle gear rod 911 is provided with a first tooth groove, which is engaged with the first spur gear 910 , and the outer walls of the two side gear rods of the movable frame 912 are provided with a second tooth groove, which is engaged with the second spur gear 913 .

[0041] In this embodiment, the displacement of the middle gear rod 911 drives the movable frame 912 to move, the displacement of the movable frame 912 drives the second spur gear 913 to rotate, and the rotation of the second spur gear 913 drives the rotating disk 904 to rotate.

[0042] The scouring production process for silk-wool twill silk of the present invention uses 20 / 22D mulberry silk and 70s wool blended twill silk fabric (weight 120g / m²), and the specific steps are as follows: Step 1: Pretreatment: Place the silk twill fabric into a scouring barrel 10 with a water temperature controlled at 40°C, turn on the temperature control system, preset the indirect temperature of the temperature controller to 39.5°C, and start the circulation system. Soak for 18 minutes to fully moisten the fabric and improve the penetration effect of subsequent scouring; Step 2: Initial practice; Add the necessary scouring agents into the scouring barrel 10 according to the following proportions: Soda ash 2.4g / L; Na2SiO3 2.4g / L; 630 detergent 4.8g / L; Dispersant 11g / L; The pH value of the aqueous solution in the scouring barrel 10 is adjusted to 11-11.5, and the indirect temperature of the temperature controller is preset to 90°C through the temperature control system. The bath ratio is 1:30, and the scouring time is 120 minutes. The circulation system is opened during the scouring process to make the temperature of the scouring liquid consistent. Step 3: Re-practice; Add the auxiliary agents required for retraining into the training barrel 10 according to the following proportions: Soda ash 5.6g / L; Na2SiO32.4g / L; Dispersant 11g / L; The pH value of the aqueous solution in the scouring barrel 10 is adjusted to 11-11.5, the indirect temperature of the temperature controller is preset to 90°C through the temperature control system, and the silk twill fabric is placed in the scouring barrel at a bath ratio of 1:31 and soaked for 80 minutes; the circulation system is kept open during the scouring to further remove residual impurities and protein substances; Step 4: low temperature oxidative bleaching; First, use a crane to lift the silk twill fabric, and add the auxiliary agents required for re-scouring into the scouring barrel 10 according to the following proportions: Na2SiO31.3g / L; Hydrogen peroxide 3.2g / L; The circulation system is turned on for 10 minutes to allow the auxiliaries to be fully dispersed, and the pH value is adjusted to 6.5-7.0. The silk twill fabric is slowly hoisted into the scouring barrel 10 and the temperature control system is turned on. The indirect temperature of the temperature controller is preset to 55°C and the scouring time is 55 minutes to allow the refined sericin and oil impurities to be separated from the inside of the fabric; Step 5: Washing; the grey fabric after step 4 is processed in sequence: Wash with hot water, water temperature 73℃, 18 minutes; Wash with medium-temperature water, water temperature 45°C, 18 minutes; Wash with cold water, water temperature 33℃, 18 minutes; Thoroughly remove the scouring agent and impurities on the surface of the grey cloth. The washing process requires that the silk twill grey cloth is slowly put into water and then automatically lifted repeatedly to start the water circulation; after washing, it is dehydrated and dried at a drying temperature of 90℃.

[0043] In the prior art, when using traditional scouring boxes or kettles for scouring, the scouring liquid temperature is generally controlled by manually adjusting the steam input flow rate to the heat exchanger using a steam valve. This control method has poor temperature control accuracy, resulting in large fluctuations in the scouring liquid temperature and increased production costs, which in turn affects the scouring quality and production safety of silk wool twill. To address this issue, the applicant has implemented a digital upgrade to the temperature control component of the production process.

[0044] In this embodiment: The core of this temperature control system is to use four temperature sensors evenly distributed in the training barrel 10 to collect temperature data in the barrel in real time, collect temperature data at different positions of the training barrel 10, and feed it back to the interior of the temperature control module for conversion, execute the PID instruction of the PLC controller to run internally, and compare the collected temperature data with the preset temperature data to obtain the difference, and then transmit the execution result to the input and output module, and then control the steam input flow through the action of the pneumatic control element, so as to achieve the requirement of adjusting the temperature in the training barrel 10 and maintaining stability.

[0045] Precise temperature control is one aspect of this technological transformation, while uniform circulation of the syrup is another crucial element in maintaining temperature stability. The applicant added a circulating pump to increase the fluidity of the syrup, addressing the temperature difference between the top and bottom of the syrup barrel 10 and achieving precise temperature control. The 1.5kW circulating pump pumps the syrup into the bottom of the syrup barrel 10. It then ejects the syrup from a circular, multi-porous outlet 30 cm from the top of the barrel, promoting circulation.

[0046] The scouring process of the present invention can effectively remove impurities, grease and protein substances on the surface of silk twill grey fabric through the optimized combination of pretreatment, initial scouring, re-scouring, bleaching and washing steps, and the combined use of a temperature control system and a circulation system, thereby improving the whiteness, softness and dyeing performance of the fabric, and the scouring effect is significantly better than that of the traditional process. The use of mild scouring conditions and scouring agents effectively reduces damage to silk and wool fibers and improves the strength and durability of the fabric. The washing step is optimized to reduce the waste of water resources. At the same time, by reasonably controlling the amount and type of scouring agents and improving the design of the filtering and backwashing functions of the circulation system, the discharge and treatment difficulty of wastewater are reduced, and the downtime for cleaning of the equipment is reduced, which meets the requirements of environmental protection and sustainable development while playing the role of reducing costs and increasing efficiency. Example 2

[0047] The scouring production process for silk-wool twill described in this embodiment uses 20 / 22D mulberry silk and 70s wool blended twill fabric (weight 120g / m²), and the specific steps are as follows: Step 1: Pretreatment: Place the silk twill fabric in a scouring barrel 10 with a water temperature controlled at 40°C, turn on the temperature control system, preset the indirect temperature of the temperature controller to 39.5°C, and start the circulation system. Soak for 15 minutes to fully moisten the fabric and improve the penetration effect of subsequent scouring; Step 2: Initial practice; Add the necessary scouring agents into the scouring barrel 10 according to the following proportions: Soda ash 2.3g / L; Na2SiO3 2.3g / L; 630 detergent 4.5g / L; Dispersant 10g / L; The pH value of the aqueous solution in the scouring barrel 10 is adjusted to 11-11.5, and the indirect temperature of the temperature controller is preset to 90°C through the temperature control system. The bath ratio is 1:30, and the scouring time is 120 minutes. The circulation system is opened during the scouring process to make the temperature of the scouring liquid consistent. Step 3: Re-practice; Add the auxiliary agents required for retraining into the training barrel 10 according to the following proportions: Soda ash 5.5g / L; Na2SiO32.3g / L; Dispersant 10g / L; The pH value of the aqueous solution in the scouring barrel 10 is adjusted to 11-11.5, the indirect temperature of the temperature controller is preset to 90°C through the temperature control system, and the silk twill fabric is placed in the scouring barrel at a bath ratio of 1:30 and soaked for 80 minutes; the circulation system is kept open during the scouring to further remove residual impurities and protein substances; Step 4: low temperature oxidative bleaching; First, use a crane to lift the silk twill fabric, and add the auxiliary agents required for re-scouring into the scouring barrel 10 according to the following proportions: Na2SiO31g / L; Hydrogen peroxide 3g / L; The circulation system is turned on for 10 minutes to allow the auxiliaries to be fully dispersed, and the pH value is adjusted to 6.5-7.0. The silk twill fabric is slowly hoisted into the scouring barrel 10 and the temperature control system is turned on. The indirect temperature of the temperature controller is preset to 55°C and the scouring time is 50 minutes to allow the refined sericin and oil impurities to be separated from the inside of the fabric; Step 5: Washing; the grey fabric after step 4 is processed in sequence: Wash with hot water at 70°C for 15 minutes; Wash with medium-temperature water, water temperature 40°C, 15 minutes; Wash with cold water, water temperature 30℃, 15 minutes; Thoroughly remove the scouring agent and impurities on the surface of the grey cloth. The washing process requires that the silk twill grey cloth is slowly put into water and then automatically lifted repeatedly to start the water circulation; after washing, it is dehydrated and dried at a drying temperature of 85℃. Example 3

[0048] The scouring production process for silk-wool twill described in this embodiment uses 20 / 22D mulberry silk and 70s wool blended twill fabric (weight 120g / m²), and the specific steps are as follows: Step 1: Pretreatment: Place the silk twill fabric in a scouring barrel 10 with a water temperature controlled at 40°C, turn on the temperature control system, preset the indirect temperature of the temperature controller to 39.5°C, and start the circulation system for 20 minutes to fully moisten the fabric and improve the penetration effect of subsequent scouring; Step 2: Initial practice; Add the necessary scouring agents into the scouring barrel 10 according to the following proportions: Soda ash 2.5g / L; Na2SiO3 2.5g / L; 630 detergent 5g / L; Dispersant 12g / L; The pH value of the aqueous solution in the scouring barrel 10 is adjusted to 11-11.5, and the indirect temperature of the temperature controller is preset to 90°C through the temperature control system. The bath ratio is 1:30, and the scouring time is 120 minutes. The circulation system is opened during the scouring process to make the temperature of the scouring liquid consistent. Step 3: Re-practice; Add the auxiliary agents required for retraining into the training barrel 10 according to the following proportions: Soda ash 5.7g / L; Na2SiO32.5g / L; Dispersant 12g / L; The pH value of the aqueous solution in the scouring barrel 10 is adjusted to 11-11.5, the indirect temperature of the temperature controller is preset to 90°C through the temperature control system, and the silk twill fabric is placed in the scouring barrel at a bath ratio of 1:32 and soaked for 80 minutes; the circulation system is kept open during the scouring to further remove residual impurities and protein substances; Step 4: low temperature oxidative bleaching; First, use a crane to lift the silk twill fabric, and add the auxiliary agents required for re-scouring into the scouring barrel 10 according to the following proportions: Na2SiO31.5g / L; Hydrogen peroxide 3.5g / L; The circulation system is turned on for 10 minutes to allow the auxiliaries to be fully dispersed, and the pH value is adjusted to 6.5-7.0. The silk twill fabric is slowly hoisted into the scouring barrel 10 and the temperature control system is turned on. The indirect temperature of the temperature controller is preset to 55°C and the scouring time is 60 minutes to allow the refined sericin and oil impurities to be separated from the inside of the fabric; Step 5: Washing; the grey fabric after step 4 is processed in sequence: Wash with hot water at 75°C for 20 minutes; Wash with medium-temperature water, water temperature 50℃, 20 minutes; Wash with cold water, water temperature 35℃, 20 minutes; Thoroughly remove the scouring agent and impurities on the surface of the grey cloth. The washing process requires that the silk twill grey cloth is slowly put into water and then automatically lifted repeatedly to start the water circulation; after washing, it is dehydrated and dried at a drying temperature of 100°C.

[0049] Comparative Example In the comparative example, the traditional scouring process and ordinary scouring equipment were used to treat the silk wool twill fabric. The specific steps are as follows: Step 1: Pretreatment: Place the silk twill fabric in warm water with the water temperature controlled at 35-40℃ and soak for 20 minutes to fully moisten the fabric.

[0050] Step 2: Initial scouring: Add appropriate amount of water to the scouring pot, heat it to 90-95℃, add 5.7g / L of soda ash, 7g / L of aminotrimethylenephosphonic acid, and 3.5g / L of WA-2 dispersant to the scouring solution at a bath ratio of 1:38, stir evenly, and then add the pretreated grey cloth. Treat for 60 minutes to preliminarily remove most of the impurities and grease on the surface of the grey cloth.

[0051] Step 3: Enzyme treatment: Take out the grey cloth after the initial scouring, rinse it with clean water 3 times, and then put it into a scouring solution containing 1.2g / L soda ash and 0.5g / L protease. The pH value of the scouring solution is adjusted to 8-9, the temperature is controlled at 45°C, and the treatment is carried out for 200 minutes.

[0052] Step 4: Scouring: Add an appropriate amount of water to the scouring pot, raise the temperature to 87-90℃, add 4g / L soda ash, 4g / L aminotrimethylenephosphonic acid, and 3.5g / L WA-2 dispersant to the scouring solution at a bath ratio of 1:38, stir well, and then add the grey cloth and soak for 60 minutes to further remove impurities and sericin.

[0053] Step 5: low-temperature oxidative bleaching; using an aqueous solution containing 1.5 g / L Na2SiO3 and 3.5 g / L hydrogen peroxide, pH 9-10, treatment temperature 55°C, time 60 min. Step 6: Washing; the grey fabric after step 5 is processed in the following order: Wash with hot water at 70-75℃ for 15 minutes; Wash with medium-temperature water, water temperature 60-65℃, time 15 minutes; Wash with cold water at 30-35℃ for 10 minutes.

[0054] Then the product was dehydrated and dried, and the drying temperature was controlled at 95° C. to obtain the finished product after the comparative example treatment.

[0055] The performance test results of the embodiments and comparative examples are shown in Table 1.

[0056] Table 1 Performance test results (the examples and comparative examples adopt the national standard GB / T15552-2007 test methods and inspection rules for silk fabrics) Fabric permeability is on a scale of 1-14, with higher numbers indicating better permeability. This process surpasses national standards in all indicators, significantly reducing additive usage, shortening production time, improving labor efficiency, reducing labor intensity, and conserving water. Practice has proven that this technology deserves significant promotion and application.

[0057] The test proves that the present invention has the following technical advantages: 1. Fiber protection: The silk breaking strength retention rate is ≥93%, and the wool scale damage is reduced by 65%; 2. Environmental protection: wastewater COD is reduced by 75% compared with traditional processes; 3. Efficiency improvement: process time is shortened by 20-30%, and energy consumption is reduced by 30-40%; 4. Finished product quality: whiteness value ≥85, capillary effect ≥12cm / 30min, the fabric feels soft and has excellent drape.

[0058] The above is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A silk twill scouring device, comprising a scouring barrel (10), characterized in that: A temperature control system is provided in the training barrel (10), and the temperature control system includes more than four temperature sensors, each of which is distributed in the training barrel (10). The training barrel (10) is connected to a circulation system, and the circulation system includes a circulation pump, and the circulation pump includes a pump body (6). The two ends of the pump body (6) are fixedly connected to a connecting pipe (5) and a liquid outlet pipe (7), and one end of the connecting pipe (5) is fixedly connected to a filter cover (2). The bottom end of the filter cover (2) is installed with a filter cartridge (3), and the outer wall of the filter cover (2) is fixedly connected with a liquid inlet pipe (1). The training barrel (10) is connected to the liquid inlet pipe (1) and the liquid outlet pipe (7) through a solenoid valve; the inner cavity of the filter cartridge (3) is installed with a filter element (4), and the filter element (4) is installed by an installation mechanism (8), and the filter element (4) is backwashed by a flushing mechanism (9); the installation mechanism (8) is used to install the filter element (4). The mounting mechanism (8) includes a docking ring (801), the docking ring (801) is fixedly connected to the bottom end of the filter cover (2), the outer wall of the docking ring (801) is symmetrically provided with a fixing groove (802), the inner cavity of the filter cartridge (3) is fixedly connected to a placement plate (803) with a placement groove, the filter element (4) is placed on the inner wall of the placement plate (803), the top of the filter cartridge (3) is symmetrically provided with a slide groove (804), the inner wall of the slide groove (804) is slidably connected to a fixing rod (805), the outer wall of the filter cartridge (3) is rotatably connected to a rotating ring (806), the interior of the filter cartridge (3) is located on the outer wall of the rotating ring (806) and is rotatably connected to a first bevel gear (807), one end of the first bevel gear (807) is fixedly connected to a threaded rod (808), and the threaded rod (808) passes through the fixed rod (805).

2. The silk twill scouring equipment according to claim 1, characterized in that: The flushing mechanism (9) comprises a first guide tube (901), the first guide tube (901) being fixedly connected to the middle outer wall of the liquid outlet tube (7), the middle outer wall of the liquid inlet tube (1) being fixedly connected to the second guide tube (902), one end of each of the first guide tube (901) and the second guide tube (902) being fixedly connected to the connecting tube (5), the connecting position between the liquid inlet tube (1) and the second guide tube (902) and the connecting position between the liquid outlet tube (7) and the first guide tube (901) being fixedly connected to a mounting seat (903), the inner wall of the mounting seat (903) being rotatably connected to a rotating disk (904), the interior of the rotating disk (904) being provided with a T-shaped slot (905), a connecting seat (906) being fixedly connected inside the connecting tube (5) and between the first guide tube (901) and the second guide tube (902), the connecting seat (907) being fixedly connected to the connecting tube (5), The inner wall of the seat (906) is rotatably connected to a baffle (907), the outer walls of the liquid inlet pipe (1) and the liquid outlet pipe (7) are fixedly connected to a mounting frame (908), the outer wall of the mounting frame (908) is installed with a motor (909), the output end of the motor (909) is connected to a first spur gear (910), the first spur gear (910) is fixedly connected to the baffle (907), the outer wall of the first spur gear (910) is provided with an intermediate gear rod (911), the bottom end of the intermediate gear rod (911) is fixedly connected to a movable frame (912) with a U-shaped structure, the movable frame (912) is slidably connected to the inner wall of the mounting frame (908), side gear rods are symmetrically and vertically provided on both sides of the movable frame (912), the side walls of the side gear rods are provided with second spur gears (913), and the second spur gear (913) is fixedly connected to the rotating disk (904).

3. The silk twill scouring equipment according to claim 2, characterized in that: The flushing mechanism (9) further comprises a connecting frame (914), the connecting frame (914) being fixedly connected to the bottom end of the movable frame (912), one end of the threaded rod (808) being fixedly connected to a second bevel gear (915), the interior of the filter cartridge (3) being located on the outer wall of the second bevel gear (915) being rotatably connected to a third bevel gear (916), the bottom end of the third bevel gear (916) being fixedly connected to a third spur gear (917) via a connecting rod, the interior of the filter cartridge (3) being located on the outer wall of the third spur gear (917) being rotatably connected to a fourth spur gear (918), the bottom end of the filter cartridge (3) being fixedly connected to a drain pipe (926), the top end of the drain pipe (926) being provided with A partition (919) is provided, wherein a spring (920) is connected between the partition (919) and the placement plate (803), a limiting rod (921) is fixedly connected to one side of the bottom end of the partition (919), and the limiting rod (921) is slidably connected to the inside of the filter cartridge (3), and a rotating rod (922) is rotatably connected to the other side of the bottom end of the partition (919), and the rotating rod (922) passes through the fourth spur gear (918) and extends out of the filter cartridge (3), and two clamping blocks (923) are fixedly connected to the bottom end of the rotating rod (922), a vertical groove (924) is provided on the outer wall of the rotating rod (922), and a horizontal block (925) is fixedly connected to the inner wall of the fourth spur gear (918).

4. The silk twill scouring equipment according to claim 1, characterized in that: The inner wall of the rotating ring (806) is provided with gear teeth, and the gear teeth are engaged with the first bevel gear (807).

5. The silk twill scouring equipment according to claim 1, characterized in that: The outer wall of the fixing rod (805) is provided with a threaded hole, the threaded hole matches the threaded rod (808), and the inner wall of the sliding groove (804) fits the outer wall of the fixing rod (805).

6. The silk twill scouring equipment according to claim 1, characterized in that: The fixing rod (805) is L-shaped, the outer wall of the fixing rod (805) fits in contact with the inner wall of the fixing groove (802), and the inner wall of the placement plate (803) fits in contact with the outer wall of the bottom of the filter element (4).

7. The silk twill scouring equipment according to claim 3, characterized in that: The second bevel gear (915) is meshed with the third bevel gear (916), and the third spur gear (917) is meshed with the fourth spur gear (918).

8. The silk twill scouring equipment according to claim 3, characterized in that: The inner wall of the fourth spur gear (918) fits in contact with the outer wall of the rotating rod (922), and the inner wall of the vertical slot (924) fits in contact with the outer wall of the horizontal block (925).

9. The silk twill scouring equipment according to claim 3, characterized in that: The outer wall of the middle gear rod (911) is provided with a first tooth groove, which meshes with the first spur gear (910); the outer walls of the two side gear rods of the movable frame (912) are provided with a second tooth groove, which meshes with the second spur gear (913).

10. A scouring production process for silk twill scouring equipment according to any one of claims 1 to 9, characterized in that: The specific steps are as follows: Step 1: Pretreatment: Place the silk twill grey fabric into a scouring barrel (10) with a water temperature controlled at 40°C, start the temperature control system, preset the indirect temperature of the temperature controller to 39.5°C, and start the circulation system. Soak for 15-20 minutes to fully moisten the grey fabric and improve the penetration effect of subsequent scouring; Step 2: Initial practice; Add the necessary scouring agents into the scouring barrel (10) in the following proportions: Soda ash 2.3-2.5g / L; Na2SiO3 2.3-2.5g / L; 630 detergent 4.5-5g / L; Dispersant 10-12g / L; The pH value of the aqueous solution in the scouring barrel (10) is adjusted to 11-11.5, and the indirect temperature of the temperature controller is preset to 90°C through the temperature control system. The bath ratio is 1:30, and the scouring time is 120 minutes. The circulation system is kept open during the scouring process to ensure that the temperature of the scouring liquid is consistent; Step 3: Re-practice; Add the auxiliary agents required for retraining into the training barrel (10) according to the following proportions: Soda ash 5.5-5.7g / L; Na2SiO32.3-2.5g / L; Dispersant 10-12g / L; The pH value of the aqueous solution in the scouring barrel (10) is adjusted to 11-11.5, the indirect temperature of the temperature controller is preset to 90°C through the temperature control system, and the silk twill fabric is placed in the scouring barrel at a bath ratio of 1:(30-32) and soaked for 80 minutes; during the scouring, the circulation system is kept open to further remove residual impurities and protein substances; Step 4: low temperature oxidative bleaching; First, the silk wool twill fabric is hoisted by a crane, and the auxiliary agents required for re-refining are added into the refining barrel (10) according to the following proportions: Na2SiO31-1.5g / L; Hydrogen peroxide 3-3.5g / L; The circulation system is turned on for 10 minutes to allow the auxiliaries to be fully dispersed, and the pH value is adjusted to 6.5-7.

0. The silk twill fabric is slowly hoisted into the scouring barrel (10) and the temperature control system is turned on. The indirect temperature of the temperature controller is preset to 55°C for 50-60 minutes to allow the refined sericin and oil impurities to be separated from the inside of the fabric. Step 5: Wash with water; The grey fabric after step 4 is processed in the following order: Wash with hot water at 70-75℃ for 15-20 minutes; Wash with medium-temperature water, water temperature 40-50℃, 15-20 minutes; Wash with cold water at 30-35℃ for 15-20 minutes; Thoroughly remove the scouring agent and impurities on the surface of the grey cloth. The washing process requires that the silk twill grey cloth is slowly put into water and then automatically lifted repeatedly to start the water circulation; after washing, it is dehydrated and dried at a drying temperature of 85-100℃.

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