A method for degumming raw silk.

Abstract

A method for degumming raw silk, relating to the field of silk processing technology, includes soaking the raw silk bundle, a first degumming treatment, a second degumming treatment, a softening treatment, and drying the finished product. This invention is highly practical and very convenient to use. By setting up a box, it facilitates the degumming treatment of the raw silk bundle, improving degumming efficiency and the quality of the degummed silk. The box also softens the silk, improving its smoothness and facilitating subsequent processing. Furthermore, by setting up a wastewater tank, it treats the wastewater after degumming, reducing nutrient-rich components and minimizing environmental pollution.

Description

Technical Field

[0001] This invention relates to the field of silk processing technology, and in particular to a method for degumming raw silk. Background Technology

[0002] Silk, also known as spun silk or cocoon silk, is a continuous protein fiber formed by the solidification of secretions from mature silkworms when they spin cocoons. The main components of silk are fibroin and sericin. After refining to remove the sericin, silk becomes "mature silk," which is soft and lustrous, making it easy to process later. In traditional degumming processes, the sericin is difficult to remove effectively and completely because the raw silk bundles are densely packed. The degumming process is also time-consuming and cumbersome, and the chemicals used may remain in the silk, resulting in inconsistent quality of the processed silk. Furthermore, the degumming process generates a large amount of eutrophic wastewater, which, if discharged directly, will cause environmental pollution, making subsequent treatment difficult and costly. Summary of the Invention

[0003] To overcome the shortcomings of the prior art, the present invention discloses a method for degumming raw silk. The present invention achieves the purpose of degumming raw silk bundles by soaking the raw silk bundles, performing a first degumming treatment, a second degumming treatment, a softening treatment, and drying the finished product.

[0004] To achieve the aforementioned objective, the present invention employs the following technical solution:

[0005] A method for degumming raw silk includes the following steps:

[0006] Step 1: Soak the raw silk bundles. Immerse the entire raw silk bundle in clean water at a temperature of 60-80℃ to fully wet the raw silk bundles for 15 minutes.

[0007] Step 2: Place the soaked raw silk bundles in a degumming device for the first degumming treatment;

[0008] Step 3: After the raw silk bundles have been cooled to room temperature after the first degumming, they are washed, spun dry, and dried.

[0009] Step 4: Perform a second degumming treatment on the raw silk bundle in the degumming device;

[0010] Step 5: After the silk bundles have been cooled to room temperature after the second degumming, they are washed, spun dry, and dried.

[0011] Step Six: Soften the dried silk bundles in the degumming device;

[0012] Step 7: Spin dry and dry the softened silk bundles.

[0013] The degumming device includes a box body with columns distributed on the lower surface of the box body. A water inlet pipe is provided on the box body, through which hot water is injected into the box body. A bracket is provided on the inner wall of the box body, and a support is installed above the bracket. The raw silk bundle is sleeved on the support, and a pulsator is provided below the support. A first motor is provided on the lower surface of the box body. The first motor drives the pulsator to rotate, thereby dissolving the Na2CO3 added into the box body in the hot water and causing the solution in the box body to flow.

[0014] The box has an upward-opening structure, with a cover plate on the upper surface of the box. The cover plate is hinged to the upper end of the box. The outer surface of the box is covered with an insulation layer. An observation window is provided on one side of the box. A connecting pipe is provided at the lower end of one side of the box. A valve is provided on the connecting pipe. A sewage tank is provided at the end of the connecting pipe. Connecting rods are distributed between the upper surface of the sewage tank and the lower surface of the box.

[0015] The inner wall of the enclosure is equipped with at least one ultrasonic generator, which is electrically connected to an external controller.

[0016] The upper surface of the sewage tank is equipped with a first motor. The rotor of the first motor passes through the center of the lower surface of the tank and is located inside the tank. A pulsator is installed on the rotor of the first motor, and a bracket is installed above the pulsator.

[0017] The bracket includes a fixed rod and a support ring. The two ends of the fixed rod are connected to the inner wall of the box, and the support ring is located in the middle of the fixed rod. The upper surface of the support ring has grooves, and the support part is installed on the support ring.

[0018] The support unit includes a lead screw, a fixing ring, a sleeve, a retaining ring, a retaining block, a support plate, a fixing plate, a strut, and a pull rod. The lead screw is installed inside the sleeve and passes through the sleeve. The upper end of the lead screw is provided with a fixing ring, which is threadedly connected to the lead screw. The lower end of the lead screw is provided with a retaining ring, which is fitted onto the lead screw. The lower side of the lead screw has retaining blocks distributed, which are corresponding to retaining grooves and are located below the retaining ring. The side of the sleeve has longitudinally equidistant sliding grooves. The support unit is provided with at least one support plate, which is arranged in a ring around the center of the sleeve. The support plates are corresponding to the sliding grooves. The sleeve and the support plates are connected by struts and pull rods.

[0019] The support plate has an arc-shaped structure with its concave surface facing the sleeve. Two fixing plates are symmetrically arranged on the concave surface of the support plate, and each fixing plate is provided with a strut. One end of the strut is rotatably connected to the side of the fixing plate, and the other end of the strut is rotatably connected to the adjacent inner wall of the corresponding slide groove. A pull rod is provided on the side of the strut, with one end of the pull rod rotatably connected to the strut and the other end of the pull rod passing through the slide groove and rotatably connected to the side of the lead screw.

[0020] The support plate has at least one partition on its side, and the partitions are distributed in an equidistant array from top to bottom on the outer convex surface of the support plate. One side of the partition is connected to the outer convex surface of the support plate.

[0021] One end of the sewage tank is connected to the lower end of the connecting pipe. A drain pipe is provided below the connecting pipe, and a valve is provided on the drain pipe. Vent holes are distributed on the upper surface of the sewage tank. An air pump and a second motor are provided on the side of the sewage tank. The air outlet of the air pump is located inside the sewage tank. An airflow distribution plate is provided on the bottom surface of the sewage tank. The air outlet of the air pump is connected to the airflow distribution plate. The rotor of the second motor passes through the side of the sewage tank. A stirring shaft is provided at the end of the rotor of the second motor. Stirring blades are distributed on the side of the stirring shaft.

[0022] The silk degumming method described in this invention is highly practical and very convenient to use. By setting up a box, it is easy to degumme the raw silk bundle, improving degumming efficiency and the quality of the degummed silk. The box also softens the silk, improving its smoothness and facilitating subsequent processing. Furthermore, by setting up a wastewater tank, it treats the wastewater after degumming, reducing the nutrient-rich components in the wastewater and minimizing environmental pollution. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0024] Figure 2 This is a three-dimensional structural diagram of the present invention;

[0025] Figure 3 This is a cross-sectional view of the housing of the present invention;

[0026] Figure 4 This is a cross-sectional view of the support portion of the present invention;

[0027] Figure 5 This is a cross-sectional view of the wastewater tank of the present invention;

[0028] In the diagram: 1. Box body; 2. Cover plate; 3. Column; 4. Water inlet pipe; 5. Observation window; 6. Connecting pipe; 7. Connecting rod; 8. First motor; 9. Sewage tank; 10. Drain pipe; 11. Air pump; 12. Insulation layer; 13. Ultrasonic generator; 14. Fixing rod; 15. Support ring; 16. Slot; 17. Impeller; 18. Lead screw; 19. Fixing ring; 20. Sleeve; 21. Slide groove; 22. Snap ring; 23. Locking block; 24. Support plate; 25. Partition plate; 26. Fixing plate; 27. Support rod; 28. Tie rod; 29. ​​Airflow distribution plate; 30. Second motor; 31. Stirring shaft; 32. Stirring blade; 33. Exhaust port. Detailed Implementation

[0029] The present invention will be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention.

[0030] Combined with appendix Figures 1-5 A method for degumming raw silk includes the following steps:

[0031] Step 1: Soak the raw silk bundles. Immerse the entire raw silk bundle in clean water at a temperature of 60-80℃ to fully wet the raw silk bundles for 15 minutes.

[0032] Step 2: Place the soaked raw silk bundles in a degumming device for the first degumming treatment;

[0033] Step 3: After the raw silk bundles have been cooled to room temperature after the first degumming, they are washed, spun dry, and dried.

[0034] Step 4: Perform a second degumming treatment on the raw silk bundle in the degumming device;

[0035] Step 5: After the silk bundles have been cooled to room temperature after the second degumming, they are washed, spun dry, and dried.

[0036] Step Six: Soften the dried silk bundles in the degumming device;

[0037] Step 7: Spin dry and dry the softened silk bundles.

[0038] The degumming device includes a box body 1, with columns 3 distributed on the lower surface of the box body 1. A water inlet pipe 4 is provided on the box body 1, through which hot water is injected into the box body 1. A bracket is provided on the inner wall of the box body 1, and a support is installed above the bracket. The raw silk bundle is sleeved on the support. A pulsator 17 is provided below the support. A first motor 8 is provided on the lower surface of the box body 1. The first motor 8 drives the pulsator 17 to rotate, thereby dissolving the Na2CO3 added into the box body 1 in the hot water and causing the solution in the box body 1 to flow, so that the solution flows through the gaps between the raw silk bundles, thus better removing the glue from the raw silk.

[0039] The box 1 has an upward-opening structure. The upper surface of the box 1 is provided with a cover plate 2, which is hinged to the upper end of the box 1. The outer surface of the box 1 is covered with a heat insulation layer 12, which maintains the temperature of the solution inside the box 1 and reduces heat loss. An observation window 5 is provided on one side of the box 1. A connecting pipe 6 is provided at the lower end of one side of the box 1. A valve is provided on the connecting pipe 6. A sewage tank 9 is provided at the end of the connecting pipe 6. Connecting rods 7 are distributed between the upper surface of the sewage tank 9 and the lower surface of the box 1.

[0040] The inner wall of the housing 1 is provided with at least one ultrasonic generator 13. The ultrasonic generator 13 is electrically connected to an external controller. The ultrasonic waves generated by the ultrasonic generator 13 can effectively remove residual sericin and chemicals from the raw silk bundle, thereby improving the quality of the processed silk.

[0041] The upper surface of the sewage tank 9 is provided with a first motor 8. The rotor of the first motor 8 passes through the center of the lower surface of the tank 1 and is located inside the tank 1. The impeller 17 is installed on the rotor of the first motor 8. The rotation of the impeller 17 drives the flow of the solution inside the tank 1. The bracket is installed above the impeller 17.

[0042] The bracket includes a fixed rod 14 and a support ring 15. The two ends of the fixed rod 14 are connected to the inner wall of the box 1, and the support ring 15 is located in the middle of the fixed rod 14. The upper surface of the support ring 15 has grooves 16, and the support part is installed on the support ring 15.

[0043] The support part includes a lead screw 18, a fixing ring 19, a sleeve 20, a retaining ring 22, a retaining block 23, a support plate 24, a fixing plate 26, a strut 27, and a pull rod 28. The lead screw 18 is disposed inside the sleeve 20 and passes through the sleeve 20. The upper end of the lead screw 18 is provided with a fixing ring 19, which is threadedly connected to the lead screw 18. The lower end of the lead screw 18 is provided with a retaining ring 22, which is sleeved on the lead screw 18. The lower side of the lead screw 18 is provided with retaining blocks 23, which are correspondingly arranged with slots 16. The retaining blocks 23 are located below the retaining ring 22. The side of the sleeve 20 is longitudinally and equidistantly distributed with sliding grooves 21. The support part is provided with at least one support plate 24. Each support plate 24 is arranged in a ring around the center of the sleeve 20. The support plate 24 is correspondingly arranged with the sliding grooves 21. The sleeve 20 and the support plate 24 are connected by the strut 27 and the pull rod 28.

[0044] The support plate 24 has an arc-shaped structure, with its concave surface facing the sleeve 20. Two fixing plates 26 are symmetrically arranged on the concave surface of the support plate 24, and each fixing plate 26 is provided with a support rod 27. One end of the support rod 27 is rotatably connected to the side of the fixing plate 26, and the other end of the support rod 27 is rotatably connected to the adjacent inner wall of the corresponding sliding groove 21. A pull rod 28 is provided on the side of the support rod 27. One end of the pull rod 28 is rotatably connected to the support rod 27, and the other end of the pull rod 28 passes through the sliding groove 21 and is rotatably connected to the side of the lead screw 18. Rotating the fixing ring 19 causes the lead screw 18 to rise or fall, thereby pulling the pull rod 28 to rise or fall, thus controlling the distance between the support plate 24 and the sleeve 20, so that the raw silk bundle can be tightly attached to the support plate 24.

[0045] The side of the support plate 24 is provided with at least one partition 25. The partitions 25 are distributed in an equidistant array from top to bottom on the outer convex surface of the support plate 24, and one side of the partition 25 is connected to the outer convex surface of the support plate 24.

[0046] One end of the sewage tank 9 is connected to the lower end of the connecting pipe 6. A drain pipe 10 is provided below the connecting pipe 6, and a valve is provided on the drain pipe 10. Vent holes 33 are distributed on the upper surface of the sewage tank 9. An air pump 11 and a second motor 30 are provided on the side of the sewage tank 9. The air outlet of the air pump 11 is located inside the sewage tank 9. An airflow distribution plate 29 is provided on the bottom surface of the sewage tank 9. The air outlet of the air pump 11 is connected to the airflow distribution plate 29. The rotor of the second motor 30 passes through the side of the sewage tank 9. A stirring shaft 31 is provided at the end of the rotor of the second motor 30. Stirring blades 32 are distributed on the side of the stirring shaft 31. A large amount of air is injected into the sewage in the sewage tank 9 by the air pump 11, and a large number of bubbles are generated by the airflow distribution plate 29 to aerate the sewage, reduce the eutrophication in the sewage, and make it meet the discharge standards.

[0047] The silk degumming method described in this embodiment involves first soaking the raw silk bundle in 60-80°C water for 15 minutes. The raw silk bundle is then placed on a support unit, with partitions 25 dividing it into equal portions to prevent displacement and reduce the number of strands per bundle, thus improving degumming efficiency. Na2CO3 is added to the chamber 1, followed by 80-100°C hot water through the inlet pipe 4. The impeller 17 rotates to dissolve the Na2CO3 in the hot water. The support unit is then installed on a bracket, and the cover plate 2 is placed on top, ensuring the solution covers the raw silk bundle. The insulation layer 12 maintains the solution temperature within the chamber 1, reducing heat loss. The first motor 8 is activated, causing the impeller 17 to rotate and flow the solution within the chamber 1, allowing the solution to flow between the silk bundles for better degumming. The soaking time is 60 minutes. After 6 minutes, the glue-containing solution in box 1 is discharged through connecting pipe 6. After the first degumming, the raw silk bundle is cooled to room temperature, then washed, spun dry, and dried. Then, the support is installed on the bracket again for a second degumming. The support is submerged in 60-80℃ clean water, and the ultrasonic generator 13 is activated. The ultrasonic waves generated by the ultrasonic generator 13 can effectively remove residual sericin and chemicals from the raw silk bundle, improving the quality of the processed silk. Soaking for 60 minutes... After -120 mins, the residual solution in the tank 1 is discharged through the connecting pipe 6. The raw silk bundle after the second degumming is cooled to room temperature, and then washed, spun dry and dried. Softener and room temperature water are added to the tank 1. The support is installed into the tank 1 again to soften the silk bundle for 15 mins. Then the wastewater in the tank 1 is discharged, and the softened silk bundle is spun dry and dried. A large amount of air is injected into the wastewater in the wastewater tank 9 through the air pump 11, and a large number of bubbles are generated by the airflow distribution plate 29 to aerate the wastewater. During the aeration process, the stirring blades 32 will stir the wastewater surface to reduce the amount of nutrients in the wastewater and make it meet the discharge standards.

[0048] The parts of this invention not described in detail are prior art. Although the invention has been specifically shown and introduced in conjunction with preferred embodiments, there are many methods and approaches to implement this technical solution. The above description is only a preferred embodiment of the invention. However, those skilled in the art should understand that various changes in form and detail can be made to the invention without departing from the spirit and scope of the invention as defined in the appended claims, and all such changes are within the scope of protection of the invention.

Claims

1. A silk degumming device, comprising a box (1), with columns (3) distributed on the lower surface of the box (1), a water inlet pipe (4) provided on the box (1), hot water being injected into the box (1) through the water inlet pipe (4), and a bracket provided on the inner wall of the box (1), characterized in that: The support part is installed above the bracket, the silk bundle is sleeved on the support part, a wave wheel (17) is arranged below the support part, a first motor (8) is arranged on the lower surface of the box body (1), the first motor (8) drives the wave wheel (17) to rotate, so that Na2CO3 put into the box body (1) is dissolved in hot water, and the solution in the box body (1) is driven to flow, the box body (1) is an upward opening structure, a cover plate (2) is arranged on the upper surface of the box body (1), the cover plate (2) is hinged to the upper end of the box body (1), the outer surface of the box body (1) is wrapped with a heat preservation layer (12), an observation window (5) is arranged on one side of the box body (1), a connecting pipe (6) is arranged on the lower end of one side of the box body (1), a valve is arranged on the connecting pipe (6), a sewage tank (9) is arranged at the end of the connecting pipe (6), connecting rods (7) are arranged between the upper surface of the sewage tank (9) and the lower surface of the box body (1), a first motor (8) is arranged on the upper surface of the sewage tank (9), the rotor of the first motor (8) is arranged in the box body (1) through the center of the lower surface of the box body (1), the wave wheel (17) is installed on the rotor of the first motor (8), the bracket is installed above the wave wheel (17), the bracket comprises a fixed rod (14) and a supporting ring (15), the two ends of the fixed rod (14) are connected with the inner walls of the box body (1) respectively, the supporting ring (15) is arranged in the middle of the fixed rod (14), the upper surface of the supporting ring (15) is provided with a clamping groove (16), the support part is installed on the supporting ring (15), the support part comprises a lead screw (18), a fixed ring (19), a sleeve (20), a clamping ring (22), a clamping block (23), a supporting plate (24), a fixed plate (26), a supporting rod (27) and a pull rod (28), the lead screw (18) is arranged in the sleeve (20), the lead screw (18) penetrates through the sleeve (20), the upper end of the lead screw (18) is provided with the fixed ring (19), the fixed ring (19) is threadedly connected with the lead screw (18), the lower end of the lead screw (18) is provided with the clamping ring (22), the clamping ring (22) is sleeved on the lead screw (18), the lower end of the lead screw (18) is provided with the clamping block (23), the clamping block (23) is arranged below the clamping ring (22), the side surface of the sleeve (20) is longitudinally and equidistantly provided with a sliding groove (21), the support part is provided with at least one supporting plate (24), each supporting plate (24) is annularly arranged around the sleeve (20) with the center of the sleeve (20) as the center, the supporting plate (24) is arranged correspondingly with the sliding groove (21), the sleeve (20) and the supporting plate (24) are connected through the supporting rod (27) and the pull rod (28), at least one partition plate (25) is arranged on the side surface of the supporting plate (24), each partition plate (25) is equidistantly and arrayed on the outer convex surface of the supporting plate (24) from top to bottom, one side of the partition plate (25) is connected with the outer convex surface of the supporting plate (24).

2. The raw silk degumming device according to claim 1, characterized in that: At least one ultrasonic generator (13) is arranged on the inner wall of the box body (1), and the ultrasonic generator (13) is electrically connected with an external controller.

3. The device for degumming raw silk according to claim 1, characterized in that: The support plate (24) is an arc structure, the inner concave surface of the support plate (24) faces the sleeve (20), two fixed plates (26) are symmetrically arranged on the inner concave surface of the support plate (24), a supporting rod (27) is arranged on each of the two fixed plates (26), one end of the supporting rod (27) is rotatably connected with the side surface of the fixed plate (26), the other end of the supporting rod (27) is rotatably connected with the inner wall adjacent to the corresponding sliding groove (21), a pull rod (28) is arranged on the side surface of the supporting rod (27), one end of the pull rod (28) is rotatably connected with the supporting rod (27), and the other end of the pull rod (28) is rotatably connected with the side surface of the lead screw (18) and passes through the sliding groove (21).

4. The raw silk degumming apparatus according to claim 1, characterized by: The sewage tank (9) is in communication with the lower end of the connecting pipe (6), a drain pipe (10) is arranged below the connecting pipe (6), a valve is arranged on the drain pipe (10), exhaust holes (33) are distributed on the upper surface of the sewage tank (9), an air pump (11) and a second motor (30) are arranged on the side surface of the sewage tank (9), the air outlet end of the air pump (11) is arranged in the sewage tank (9), an airflow distribution plate (29) is arranged on the bottom surface of the sewage tank (9), the air outlet end of the air pump (11) is connected with the airflow distribution plate (29), the rotor of the second motor (30) passes through the side surface of the sewage tank (9), a stirring shaft (31) is arranged at the end of the rotor of the second motor (30), and stirring blades (32) are distributed on the side surface of the stirring shaft (31).

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