Device and method for producing a drapery silk fabric

Abstract

The present application relates to a kind of production device and production method of draping silk fabric, mainly including the following steps: step one, silk fiber raw material is obtained by weaving grey cloth;Step two, the grey cloth obtained in step one is immersed in dip dyeing liquid to carry out ultrasonic dip dyeing, after ultrasonic dip dyeing, the grey cloth is washed and dried;Step three, the grey cloth treated in step two is first immersed in first soft finishing agent, then is subjected to traction stretching treatment, and is assisted by spraying second soft finishing agent while traction stretching;Step four, the grey cloth treated in step three is washed, dried to obtain the draping silk fabric, the fabric produced by the present application has excellent draping characteristics, better gloss, strong wash resistance, and has good application prospect.

Description

Technical Field

[0001] This invention belongs to the field of fabric production, specifically relating to a production apparatus and method for draped silk fabrics. Background Technology

[0002] Silk fabrics are soft and smooth, making them popular with many consumers. They generally refer to silkworm silk, including mulberry silk, tussah silk, castor silk, cassava silk, and other materials. Although silk fabrics are comfortable and breathable to wear, they are not easy to care for, wrinkle easily, and are expensive.

[0003] Currently, Tencel fabrics on the market possess the appearance, luster, and feel of real silk, and are reasonably priced, making them popular with consumers. Therefore, improving the drape, luster, and other performance properties of this type of silk fabric is key to expanding the Tencel fabric market. To address this, this invention focuses on production equipment and methods to enhance the performance of this type of silk fabric. Specifically, we propose a production equipment and method for producing draped silk fabrics. Summary of the Invention

[0004] The purpose of this invention is to provide a production apparatus and method for draped silk fabrics in order to solve the above-mentioned problems.

[0005] The present invention achieves the above objectives through the following technical solutions:

[0006] This invention discloses a method for producing a draped silk fabric, which mainly includes the following steps:

[0007] Step 1: The Tencel fiber raw material is woven to obtain the greige fabric;

[0008] Step 2: Immerse the fabric obtained in Step 1 into the dyeing solution for ultrasonic dyeing. After ultrasonic dyeing, wash and dry the fabric.

[0009] Step 3: Immerse the fabric treated in Step 2 into the first softening agent, then perform a traction and stretching treatment, and simultaneously spray the second softening agent.

[0010] Step four: After cleaning and drying the fabric treated in step three, the draped silk fabric is obtained.

[0011] As a further optimization of the present invention, step two specifically involves immersing the fabric in the dye liquor at a liquor ratio of 1:30-50, controlling the temperature at 30°C, with a heating rate of 0.6°C / min, heating to 50°C and holding for 10 minutes, then heating to 60-65°C at the same heating rate, and ultrasonically holding for 30-60 minutes with an ultrasonic frequency of 35-50kHz and a power of 70-85W.

[0012] As a further optimization of the present invention, in step three, the composition of the first softening agent, by weight percentage, includes 30-40% olive water extract, 25-35% mandelic acid, 10-20% fatty alcohol polyoxyethylene ether, 1-5% silicone defoamer, 1-5% thickener, and the balance being water.

[0013] The second softening agent is formulated by adding 1-5% by weight of silk fibroin peptide to the formulation of the first softening agent. The second softening agent is sprayed onto the surface of the fabric after pressurized atomization.

[0014] The present invention also provides a draped silk fabric prepared by any of the production methods described above.

[0015] The present invention also provides a production apparatus for draped silk fabric, including a weaving machine, an ultrasonic dyeing device and a drying device. The production apparatus further includes a disc frame, an atomizing liquid supply unit, a drive unit, an ultrasonic soaking tank, an ultrasonic cleaning tank and a horizontal transfer roller mounted on the ultrasonic soaking tank and the ultrasonic cleaning tank.

[0016] Multiple transfer rollers are distributed along the circumference of the disc frame for transferring the fabric blank on the disc frame.

[0017] Two symmetrical swing stretching structures are provided on the disc frame. The atomizing liquid supply unit is located directly above the two swing stretching structures. A translational transmission unit is meshed between the two swing stretching structures. The translational transmission unit, driven by the drive unit, pushes the two swing stretching structures to swing and pull the fabric conveyed by the transfer roller to achieve the traction and stretching operation.

[0018] As a further optimization of the present invention, the atomizing liquid supply unit includes a liquid storage tank, the liquid outlet end of the liquid storage tank is provided with a pipeline, the pipeline is provided with a booster pump, and the end of the pipeline not connected to the liquid storage tank is provided with a nozzle.

[0019] As a further optimization of the present invention, the drive unit includes a drive shaft connected to a drive motor, a first pulley group and a second pulley group whose driving ends are axially connected to the drive shaft, and the driven ends of the first pulley group and the second pulley group are connected to the transmission rollers at both ends of the disc frame.

[0020] As a further optimization of the present invention, the translational transmission unit includes a turntable sleeved with the drive shaft and a rack slidably engaged with the turntable frame. The turntable is provided with a protruding rod, and the rack is provided with a transverse limiting groove near the turntable that is movably sleeved with the protruding rod.

[0021] As a further optimization of the present invention, the swing stretching structure includes a meshing gear and a swing arm coaxially connected to the meshing gear. A rotating roller is provided at the top of the swing arm near the upper surface of the fabric. A support cam roller corresponding to the rotating roller is axially connected to the disc frame near the lower surface of the fabric. A sleeve is sleeved on the shaft end of the support cam roller. A reset spring is provided between the sleeve and the disc frame.

[0022] The beneficial effects of this invention are as follows:

[0023] This invention first weaves silk fiber raw materials to obtain greige fabric, then immerses the greige fabric in a dyeing solution for ultrasonic dyeing. After ultrasonic dyeing, the greige fabric is washed and dried. Then, the greige fabric is immersed in a first softening agent and subjected to traction and stretching treatment. At the same time as traction and stretching, a second softening agent is sprayed. Finally, the treated greige fabric is washed and dried. The resulting fabric has excellent drape properties, good luster, and strong washability, and has good application prospects. Attached Figure Description

[0024] Figure 1 A schematic diagram of the overall structure of the production apparatus provided by the present invention;

[0025] Figure 2 Rear view of the disc holder provided by the present invention;

[0026] In the diagram: 1. Disc frame; 2. Ultrasonic immersion tank; 3. Ultrasonic cleaning tank; 4. Horizontal transfer roller; 5. Atomizing liquid supply unit; 51. Liquid storage tank; 52. Pipeline; 53. Nozzle; 54. Booster pump; 6. Swinging tension structure; 61. Meshing gear; 62. Swing arm; 63. Rotary roller; 64. Support cam roller; 65. Sleeve; 66. Return spring; 7. Drive unit; 71. Drive shaft; 72. First pulley group; 73. Second pulley group; 8. Translational transmission unit; 81. Turntable; 82. Rack; 83. Lateral limiting groove; 84. Protruding rod; 9. Transfer rollers. Detailed Implementation

[0027] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0028] Example 1

[0029] This embodiment provides a method for producing a draped silk fabric, mainly including the following steps:

[0030] Step 1: The Tencel fiber raw material is woven to obtain the greige fabric;

[0031] Step 2: Immerse the fabric obtained in Step 1 into the dyeing solution for ultrasonic dyeing. After ultrasonic dyeing, wash and dry the fabric. Specifically, immerse the fabric in the dyeing solution at a liquor ratio of 1:30, control the temperature at 30℃, the heating rate at 0.6℃ / min, heat to 50℃ and hold for 10 minutes, then heat to 60℃ at the same heating rate and ultrasonically hold for 60 minutes. The ultrasonic frequency is 35kHz and the power is 70W.

[0032] Step 3: Immerse the fabric treated in Step 2 into the first softening agent, then perform a traction and stretching treatment, and simultaneously spray the second softening agent.

[0033] The first softening agent comprises, by weight percentage, 40% olive water extract, 25% mandelic acid, 20% fatty alcohol polyoxyethylene ether, 2% silicone defoamer, 2% thickener, and the balance being water.

[0034] The second softening agent is formulated by adding 2% by weight of silk fibroin peptide to the formulation of the first softening agent. The second softening agent is sprayed onto the surface of the fabric after pressurized atomization.

[0035] Step four: After cleaning and drying the fabric treated in step three, the draped silk fabric is obtained.

[0036] Example 2

[0037] This embodiment provides a method for producing a draped silk fabric, mainly including the following steps:

[0038] Step 1: The Tencel fiber raw material is woven to obtain the greige fabric;

[0039] Step 2: Immerse the fabric obtained in Step 1 into the dyeing solution for ultrasonic dyeing. After ultrasonic dyeing, wash and dry the fabric. Specifically, immerse the fabric in the dyeing solution at a liquor ratio of 1:50, control the temperature at 30℃, the heating rate at 0.6℃ / min, heat to 50℃ and hold for 10 minutes, then heat to 65℃ at the same heating rate and ultrasonically hold for 45 minutes. The ultrasonic frequency is 50kHz and the power is 85W.

[0040] Step 3: Immerse the fabric treated in Step 2 into the first softening agent, then perform a traction and stretching treatment, and simultaneously spray the second softening agent.

[0041] The first softening agent comprises, by weight percentage, 30% olive water extract, 35% mandelic acid, 10% fatty alcohol polyoxyethylene ether, 5% silicone defoamer, 5% thickener, and the balance being water.

[0042] The second softening agent is formulated by adding 5% by weight of silk fibroin peptide to the formulation of the first softening agent. The second softening agent is sprayed onto the surface of the fabric after pressurized atomization.

[0043] Step four: After cleaning and drying the fabric treated in step three, the draped silk fabric is obtained.

[0044] Example 3

[0045] This embodiment provides a method for producing a draped silk fabric, mainly including the following steps:

[0046] Step 1: The Tencel fiber raw material is woven to obtain the greige fabric;

[0047] Step 2: Immerse the fabric obtained in Step 1 into the dyeing solution for ultrasonic dyeing. After ultrasonic dyeing, wash and dry the fabric. Specifically, immerse the fabric in the dyeing solution at a liquor ratio of 1:40, control the temperature at 30℃, the heating rate at 0.6℃ / min, heat to 50℃ and hold for 10 minutes, then heat to 60℃ at the same heating rate and ultrasonically hold for 45 minutes. The ultrasonic frequency is 35kHz and the power is 70W.

[0048] Step 3: Immerse the fabric treated in Step 2 into the first softening agent, then perform a traction and stretching treatment, and simultaneously spray the second softening agent.

[0049] The first softening agent comprises, by weight percentage, 35% olive water extract, 30% mandelic acid, 15% fatty alcohol polyoxyethylene ether, 1% silicone defoamer, 1% thickener, and the balance being water.

[0050] The second softening agent is formulated by adding 1% by weight of silk fibroin peptide to the formulation of the first softening agent. The second softening agent is sprayed onto the surface of the fabric after being pressurized and atomized.

[0051] Step four: After cleaning and drying the fabric treated in step three, the draped silk fabric is obtained.

[0052] An apparatus for producing draped silk fabrics as described in any of Examples 1-3 includes a weaving machine, an ultrasonic dyeing device, and a drying device. The production apparatus further includes a disc frame 1, an atomizing liquid supply unit 5, a drive unit 7, an ultrasonic soaking tank 2, an ultrasonic cleaning tank 3, and horizontal transfer rollers 4 mounted on the ultrasonic soaking tank 2 and the ultrasonic cleaning tank 3. A plurality of transfer rollers 9 are distributed along the circumference of the disc frame 1 for transferring the greige fabric on the disc frame 1.

[0053] Two swing stretching structures 6 are symmetrically arranged on the disc frame 1. The atomizing liquid supply unit 5 is located directly above the two swing stretching structures 6. A translational transmission unit 8 is meshed between the two swing stretching structures 6. The translational transmission unit 8 is driven by the drive unit 7 to push the two swing stretching structures 6 to swing and achieve traction and stretching operation on the fabric conveyed by the transmission roller 9.

[0054] The atomizing liquid supply unit 5 includes a liquid storage tank 51. The liquid outlet end of the liquid storage tank 51 is provided with a pipeline 52. A booster pump 54 is provided on the pipeline 52. A nozzle 53 is provided at the end of the pipeline 52 that is not connected to the liquid storage tank 51. The liquid storage tank 51 is used to store a second softening agent. The second softening agent is transmitted to the booster pump 54 through the pipeline 52 and pressurized before being sprayed onto the upper surface of the fabric from the nozzle 53.

[0055] The drive unit 7 includes a drive shaft 71 connected to a drive motor, a first pulley group 72 and a second pulley group 73 whose active ends are axially connected to the drive shaft 71, and the driven ends of the first pulley group 72 and the second pulley group 73 are connected to the transmission rollers 9 at both ends of the disc frame 1. After the drive motor drives the drive shaft 71 to rotate, the drive shaft 71 drives the transmission rollers 9 at both ends of the disc frame 1 to rotate through the first pulley group 72 and the second pulley group 73, and cooperates with other transmission rollers 9 on the disc frame 1 to realize the transmission of the fabric on the disc frame 1.

[0056] The translational transmission unit 8 includes a turntable 81 sleeved with the drive shaft 71 and a rack 82 slidably engaged with the disc frame 1. The turntable 81 is provided with a protruding rod 84, and the rack 82 is provided with a transverse limiting groove 83 near the turntable 81 that is movably sleeved with the protruding rod 84.

[0057] The swing stretching structure 6 includes a meshing gear 61 and a swing arm 62 coaxially connected to the meshing gear 61. A rotating roller 63 is provided at the top of the swing arm 62 near the upper surface of the fabric. A support cam roller 64 corresponding to the rotating roller 63 is axially connected to the disc frame 1 near the lower surface of the fabric. A sleeve 65 is sleeved on the shaft end of the support cam roller 64. A return spring 66 is provided between the sleeve 65 and the disc frame 1. The support cam roller 64 supports the fabric. When the swing arm 62 drives the rotating roller 63 to rotate to the position of the support cam roller 64, the support cam roller 64 rotates, causing the return spring 66 to compress. When the swing arm 62 moves away from the support cam roller 64, the support cam roller 64 is no longer compressed, the return spring 66 returns to its original position, and the support cam roller 64 continues to support the fabric.

[0058] As the drive motor drives the drive shaft 71 to rotate, the turntable 81 rotates accordingly. The protrusion 84 on the turntable 81 rotates with the rotation of the turntable 81. As the protrusion 84 rotates, it causes the transverse limiting groove 83, which is movably connected to it, to be displaced. As the turntable 81 rotates circumferentially, the transverse limiting groove 83, along with the rack 82 connected to it, produces a reciprocating translational motion.

[0059] Meanwhile, due to the transmission cooperation between the meshing gear 61 and the rack 82, the meshing gear 61 reciprocates and swings as the rack 82 moves back and forth, causing the coaxially mounted swing arm 62 to swing back and forth. The two swing arms 62 cooperate with each other, and the roller 63 connected to their upper ends pulls and stretches the fabric, which is beneficial for the stretching and shaping of the fibers. The fabric is fully unfolded on the disc frame 1, which, combined with the stretching of the swing stretching structure 6 and the treatment of the softening agent, makes the fabric have a better soft hand feel and drape characteristics.

[0060] Example 5

[0061] To investigate the impact of the production process on draped silk fabrics, the following comparative examples were set up based on Example 1:

[0062] Comparative Example 1: Except for step three, in which the fabric is stretched horizontally and a second softening agent is sprayed during the horizontal stretching, the other steps are the same as in Example 1.

[0063] Comparative Example 2: Except for step three, in which the first softening agent is sprayed while the material is being stretched, the other steps are the same as in Example 1.

[0064] The fabrics prepared in Examples 1-3 and Comparative Examples 1-3 were subjected to performance tests. In addition, the fabric treated with commercially available fabric softener was used as a control group.

[0065] Drape test: Using a YG 811 fabric drape tester, the umbrella method was employed, and the test was conducted according to the FZ / T 01045-1996 standard. The drape coefficient F = (S3-S2) / (S1-S2), where S1 is the sample area, S2 is the clamping plate area, and S3 is the projected area of ​​the fabric sample.

[0066] Gloss test: According to GB / T 8686-1988 "Test Method for Gloss of Fabrics", three 100mm×100mm samples were cut from each fabric and tested using a YG 814 fabric gloss meter. The average value was taken.

[0067] The results are shown in Table 1.

[0068] Table 1. Results Statistics Table

[0069]

[0070] As can be seen from Table 1, the difference between Comparative Example 1 and Example 1 is that Comparative Example 1 uses a horizontal traction stretching method to process the fabric. From the test results, the values ​​of the drape coefficient and gloss of the fabric are slightly reduced. Compared with Comparative Example 1, the traction stretching method used in this application is less likely to damage the drape and gloss of the fabric.

[0071] Comparative Example 2 was subjected to traction and stretching while being sprayed with a first softening agent, while Example 1 used a second softening agent. The second softening agent contained silk fibroin peptides compared to the first softening agent. The test results showed that the gloss value of Comparative Example 2 was significantly lower than that of Example 1, suggesting that silk fibroin peptides help improve the gloss of the fabric.

[0072] Example 6

[0073] To investigate the effect of the components of the softening agent on the fabric performance, the following examples were set up based on Example 1:

[0074] Example 1: In this example, the first softening agent, by weight percentage, comprises 40% olive water extract, 25% fruit acid, 20% fatty alcohol polyoxyethylene ether, 2% silicone defoamer, 2% thickener, and the balance being water; the second softening agent, in addition to the components of the first softening agent, also includes 2% silk fibroin peptide by weight percentage.

[0075] Example 2: In this example, the first softening agent, by weight percentage, comprises 40% olive water extract, 25% acetic acid, 20% fatty alcohol polyoxyethylene ether, 2% silicone defoamer, 2% thickener, and the balance being water; the second softening agent, in addition to the components of the first softening agent, also includes 2% silk fibroin peptide by weight percentage.

[0076] Example 3: In this example, the first softening agent, by weight percentage, comprises 40% olive water extract, 25% mandelic acid, 20% fatty alcohol polyoxyethylene ether, 2% silicone defoamer, 2% thickener, and the balance being water; the second softening agent, in addition to the components of the first softening agent, also includes 2% silk fibroin by weight.

[0077] Example 4: In this example, the first softening agent, by weight percentage, comprises 40% glyceryl monostearate, 25% mandelic acid, 20% fatty alcohol polyoxyethylene ether, 2% silicone defoamer, 2% thickener, and the balance being water; the second softening agent, in addition to the components of the first softening agent, also includes 2% silk fibroin peptide by weight percentage.

[0078] The fabrics obtained in Examples 1-4 were subjected to drape tests, gloss tests, and wash fastness tests. The results are shown in Table 2.

[0079] Table 2. Results Statistics Table

[0080]

[0081] As shown in Table 2, Examples 1-2 used fruit acid and acetic acid respectively to replace mandelic acid in Example 1. The test results showed that the fabric gloss decreased significantly, suggesting that mandelic acid has a positive effect on improving fabric gloss. In addition, the test results of Example 3 show that replacing silk fibroin peptides with silk fibroin protein also reduced the fabric gloss, suggesting that silk fibroin peptides also have a positive effect on improving fabric gloss. Finally, compared with Example 1, Example 4 used glyceryl monostearate instead of olive water extract. The results show that the fabric drape decreased significantly and the wash fastness also deteriorated, suggesting that olive water extract has a certain degree of improvement on the fabric drape and wash fastness.

[0082] The foregoing description illustrates and describes several preferred embodiments of the invention. However, as previously stated, it should be understood that the invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the invention should be within the protection scope of the appended claims.

Claims

1. A method for producing a draped silk fabric, characterized in that, The main steps include: Step 1: The Tencel fiber raw material is woven to obtain the greige fabric; Step 2: Immerse the fabric obtained in Step 1 into the dyeing solution for ultrasonic dyeing. After ultrasonic dyeing, wash and dry the fabric. Step 3: The fabric treated in Step 2 is first immersed in the first softening agent, and then subjected to traction and stretching treatment. At the same time as traction and stretching, the second softening agent is sprayed. The composition of the first softening agent, by weight percentage, includes 30-40% olive water extract, 25-35% mandelic acid, 10-20% fatty alcohol polyoxyethylene ether, 1-5% silicone defoamer, 1-5% thickener, and the balance is water. The composition of the second softening agent is the first softening agent composition with the addition of 1-5% silk fibroin peptide by weight. The second softening agent is sprayed onto the surface of the fabric after pressurized atomization treatment. Step four: After washing and drying the fabric treated in step three, the draped silk fabric is obtained. The production device for the draped silk fabric includes a weaving machine, an ultrasonic dyeing device and a drying device. The production device also includes a disc frame (1), an atomizing liquid supply unit (5), a drive unit (7), an ultrasonic soaking tank (2), an ultrasonic cleaning tank (3) and a horizontal transmission roller (4) mounted on the ultrasonic soaking tank (2) and the ultrasonic cleaning tank (3). Multiple transmission rollers (9) are distributed along the circumference of the disc frame (1) for transmitting the fabric on the disc frame (1); Two swing stretching structures (6) are symmetrically arranged on the disc frame (1). The atomizing liquid supply unit (5) is located directly above the two swing stretching structures (6). A translational transmission unit (8) meshes between the two swing stretching structures (6). The translational transmission unit (8) is driven by the drive unit (7) to push the two swing stretching structures (6) to swing and perform traction stretching operation on the fabric conveyed by the transmission roller (9). The swing stretching structure (6) includes a meshing gear (61) and a swing arm (62) coaxially connected to the meshing gear (61). A rotating roller (63) is provided at the top of the swing arm (62) near the upper surface of the fabric. A support cam roller (64) corresponding to the rotating roller (63) is axially connected to the disc frame (1) near the lower surface of the fabric. A sleeve (65) is sleeved at the shaft end of the support cam roller (64). A reset spring (66) is provided between the sleeve (65) and the disc frame (1).

2. The method for producing a draped silk fabric according to claim 1, characterized in that, The second step specifically involves immersing the fabric in the dye bath at a liquor ratio of 1:30-50, controlling the temperature at 30℃, with a heating rate of 0.6℃ / min, heating to 50℃ and holding for 10 minutes, then heating to 60-65℃ at the same rate, and ultrasonically holding for 30-60 minutes at an ultrasonic frequency of 35-50kHz and a power of 70-85W.

3. The method for producing a draped silk fabric according to claim 1, characterized in that, The atomizing liquid supply unit (5) includes a liquid storage tank (51), the liquid outlet end of the liquid storage tank (51) is provided with a pipeline (52), the pipeline (52) is provided with a booster pump (54), and the end of the pipeline (52) not connected to the liquid storage tank (51) is provided with a nozzle (53).

4. The method for producing a draped silk fabric according to claim 1, characterized in that, The drive unit (7) includes a drive shaft (71) connected to a drive motor, a first pulley group (72) and a second pulley group (73) whose active end is axially connected to the drive shaft (71), and the driven ends of the first pulley group (72) and the second pulley group (73) are connected to the transmission rollers (9) at both ends of the disc frame (1).

5. The method for producing a draped silk fabric according to claim 1, characterized in that, The translational transmission unit (8) includes a turntable (81) sleeved with the drive shaft (71) and a rack (82) slidably engaged with the disc frame (1). The turntable (81) is provided with a protruding rod (84), and the rack (82) is provided with a transverse limiting groove (83) that is movably sleeved with the protruding rod (84) near the turntable (81).

6. The draped silk fabric prepared by the production method according to any one of claims 1-2.

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