Supercritical carbon dioxide luminous finishing device and method for linen fabric

Abstract

The invention discloses a linen fabric supercritical carbon dioxide luminous finishing device which comprises a finishing kettle, a finishing cover is arranged at the top of the finishing kettle, a finishing plate divides the finishing kettle into an upper space and a lower space, the upper space is a finishing inner cylinder, the lower space is a fluid cavity, the side wall of the finishing inner cylinder is of a hollow structure and is communicated with the fluid cavity, and a fluid inlet is formed in the fluid cavity. A fluid outlet is formed in the arrangement inner cylinder; a center shaft of a hollow structure is arranged in the center of the inner arranging cylinder, an annular sliding way is further arranged on the top face of the arranging plate, and a rotating assembly is arranged in the inner arranging cylinder. Two circles of winding assemblies are further arranged in the arrangement inner cylinder and located on the two sides of the rotating assembly respectively. Supercritical carbon dioxide is adopted to replace a water medium, in the light-emitting finishing process, light-emitting finishing is conducted on the linen fabric through the wall body of the finishing inner cylinder, the center shaft and the rotating shaft by means of a mixture of supercritical carbon dioxide and finishing liquid through the surface inclined holes, and the finishing uniformity is improved.

Description

Technical Field

[0001] The invention relates to the field of linen fabric finishing, in particular to a linen fabric supercritical carbon dioxide luminescence finishing device and a finishing method thereof. Background Art

[0002] Flax is a natural fiber with the characteristics of moisture absorption, quick drying, breathability, smoothness, antibacterial and health care. It is widely used in many fields such as textiles and clothing, aerospace, medical and health care. Due to the different grooves on the surface of flax fibers, the twist direction of the yarn and the fabric structure, the reflective effect of the fabric is poor. Therefore, improving the luminous effect of linen fabric is of great significance to broadening the application of linen fabric. The traditional luminous finishing method is to use a surface coating method to fully mix the luminous material and the adhesive into a coating, and use a coating process to post-finish the base fabric to prepare a fabric with luminous function. This finishing method is simple in process and highly operable, but the bonding strength between the mixed coating and the fabric surface will affect the luminous effect, and the acid and alkali resistance, friction resistance and washing resistance of the fabric are relatively weak. Summary of the invention

[0003] The purpose of the invention is to provide a linen fabric supercritical carbon dioxide luminescence finishing device.

[0004] The invention also provides a finishing method of linen fabric using the supercritical carbon dioxide luminescence finishing device.

[0005] The innovation of the present invention is to use supercritical carbon dioxide instead of water medium. During the luminescent finishing process, the supercritical carbon dioxide and finishing liquid mixture is carried out by the finishing inner cylinder wall, the central axis and the rotating axis through the surface inclined holes to luminescently finish the linen fabric, thereby improving the uniformity of the finishing.

[0006] In order to achieve the above-mentioned object of the invention, the technical solution of the present invention is:

[0007] A supercritical carbon dioxide luminescent finishing device for linen fabrics, comprising a finishing kettle, a finishing cover is provided on the top of the finishing kettle, the finishing plate separates the finishing kettle into two spaces, the upper space is a finishing inner cylinder, and the lower space is a fluid cavity, the side wall of the finishing inner cylinder is a hollow structure and is connected to the fluid cavity, a fluid inlet is provided at the fluid cavity, and a fluid outlet is provided at the finishing inner cylinder;

[0008] A central shaft with a hollow structure is provided in the center of the finishing inner cylinder, the interior of the central shaft is connected to the fluid cavity and a mesh plate is provided at the connection point, and the top of the central shaft is open;

[0009] The top surface of the finishing plate is also provided with an annular slideway, the annular slideway is centered on the central axis, a rotating assembly is provided in the finishing inner cylinder, the rotating assembly includes an annular ring that can rotate and slide on the annular slideway and a plurality of rotating shafts with hollow structures located on the annular ring, and a connecting channel that connects the rotating shaft and the fluid cavity is provided on the annular slideway, the finishing plate and the annular ring;

[0010] The finishing inner cylinder is also provided with two winding assemblies, which are respectively located on both sides of the rotating assembly, and the winding assemblies include a plurality of rollers;

[0011] The inner wall of the finishing inner cylinder is provided with a plurality of No. 1 inclined holes inclined upward; the central axis is provided with No. 2 inclined holes with openings inclined upward and arranged in a spiral manner; the rotating axis is provided with No. 3 inclined holes with openings inclined upward and arranged in a spiral manner.

[0012] Furthermore, the inclination angles of the No. 1, No. 2 and No. 3 inclined holes are all 5-60°, the aperture of the No. 1 inclined hole is 0.5-10 mm, the aperture of the No. 2 inclined hole is 0.5-50 mm, and the aperture of the No. 3 inclined hole is 0.2-50 mm.

[0013] Furthermore, a hairiness discharge port is provided on the finishing plate, a hairiness collector is provided in the fluid cavity and is located at the hairiness discharge port, a filter screen is provided in the hairiness collector, a discharge port is provided on the hairiness collector, the discharge port is located near the top of the filter screen, the discharge port discharges to the outside of the finishing kettle, and the adsorption unit area is located below the filter screen in the hairiness collector.

[0014] Furthermore, the finishing plate is provided with two circles of protrusions, and the winding assembly includes an annular clamping ring clamped on the protrusions and a plurality of rollers located on the clamping ring.

[0015] Furthermore, a suction port is provided on the adsorption unit area, the suction port is connected to a suction pump, and the suction pump is provided with a pipeline connected to the fluid outlet.

[0016] A finishing method of linen fabric using a supercritical carbon dioxide luminescence finishing device, comprising the following steps:

[0017] (1) Place the nano-luminescent material SrAl2O4:Eu in the rotating shaft of the finishing inner cylinder;

[0018] (2) Winding the fabric on the rollers of the two-turn winding assembly;

[0019] (3) placing cyclohexane, n-octanol, octylphenol polyoxyethylene ether and water in a co-solvent kettle, starting a refrigerator to produce liquid carbon dioxide, removing impurities from the liquid carbon dioxide through a filter, starting a high-pressure pump and a heater, pressurizing and heating the liquid carbon dioxide, and when the cyclohexane, n-octanol, octylphenol polyoxyethylene ether and water enter a mixer and are mixed with the pressurized and heated liquid carbon dioxide to reach a microemulsion state, the liquid carbon dioxide enters a finishing kettle from a fluid inlet, flows back to the mixer from a fluid outlet, and is circulated and finished. The finishing kettle pressure is maintained at 8 to 30 MPa, the temperature is maintained at 35 to 150° C., and the liquid carbon dioxide flow rate is 5 to 50 g / min, and the linen fabric is subjected to luminous finishing for 25 to 230 minutes;

[0020] (4) After finishing, the high-pressure pump and the heater are turned off, the nano-luminescent material and the carbon dioxide are completely separated, the nano-luminescent material and the carbon dioxide in the finishing kettle are recycled into the separation kettle, and the finishing kettle is opened to take out the fabric.

[0021] Furthermore, when the temperature in the finishing kettle is 35-60°C, the pressure is 8-15MPa, and the carbon dioxide flow rate is 5-10g / min, the finishing is carried out in a low-speed internal and external circulation in the finishing kettle for 5-30min; when the temperature in the finishing kettle is 60-150°C, the pressure is 15-30MPa, and the carbon dioxide flow rate is 10-50g / min, the finishing is carried out in a high-speed internal and external circulation in the finishing kettle for 20-200min.

[0022] Furthermore, the mass of the nano-luminescent material SrAl2O4:Eu is 0.5-20% of the mass of the fabric, the mass of cyclohexane is 0.2-50% of the mass of the fabric, the mass of n-octanol is 0.2-50% of the mass of the fabric, the mass of octylphenol polyoxyethylene ether is 0.2-50% of the mass of the fabric, and the mass of water is 1-50% of the mass of the fabric.

[0023] The beneficial effects of the present invention are:

[0024] 1. The present invention uses supercritical carbon dioxide instead of water medium. During the luminescent finishing process, the supercritical carbon dioxide and finishing liquid mixture is passed through the surface inclined holes from the finishing inner cylinder wall, the central axis and the rotating axis to perform luminescent finishing on the linen fabric, thereby improving the uniformity of the finishing.

[0025] 2. The present invention adopts low-high speed internal and external mixing circulation finishing. Since the supercritical carbon dioxide and finishing liquid mixture are mixed and circulated at low and high speeds internal and externally, the luminous finishing effect of the linen fabric is improved.

[0026] 3. The whole process energy saving and emission reduction in the present invention plays a positive role in promoting the wide application of linen fabrics. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the present invention.

[0028] Figure 2 This is a schematic diagram of the structure of the finishing plate.

[0029] Figure 3 This is a schematic diagram of the structures of inclined hole No. 1, inclined hole No. 2, and inclined hole No. 3. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings.

[0031] Embodiment 1: A supercritical carbon dioxide luminescent finishing device for linen fabrics, comprising a finishing kettle 1, a finishing cover 2 is provided on the top of the finishing kettle 1, a finishing plate 3 separates the finishing kettle 1 into two spaces, the upper space is a finishing inner cylinder 4, and the lower space is a fluid cavity 5, the side wall of the finishing inner cylinder 4 is a hollow structure and is connected to the fluid cavity 5, a fluid inlet 6 is provided at the fluid cavity 5, and a fluid outlet 7 is provided at the finishing inner cylinder 4;

[0032] A central shaft 8 of a hollow structure is provided at the center of the finishing inner cylinder 4, the interior of the central shaft 8 is connected to the fluid chamber 5 and a mesh plate 9 is provided at the connection point, and the top of the central shaft 8 is open; an annular slide 10 is also provided on the top surface of the finishing plate 3, and the annular slide 10 is centered on the central shaft 8. A rotating assembly 11 is provided in the finishing inner cylinder 4, and the rotating assembly 11 includes an annular ring 11.1 that can rotate and slide on the annular slide 10 and a plurality of hollow rotating shafts 11.2 located on the annular ring 11.1. A connecting channel 12 that connects the rotating shaft 11.2 and the fluid chamber 5 is provided on the annular slide 10, the finishing plate 3, and the annular ring 11.1;

[0033] Two circles of winding assemblies 13 are also provided in the finishing inner cylinder 4, and the two circles of winding assemblies 13 are respectively located on both sides of the rotating assembly 11, and the winding assembly 13 includes a plurality of rollers 13.1; two circles of protrusions 3.2 are provided on the finishing plate 3, and the winding assembly 13 includes an annular clamping ring 13.2 clamped on the protrusion 3.2 and a plurality of rollers 13.1 located on the clamping ring 13.2.

[0034] The inner wall of the finishing inner cylinder 4 is provided with a plurality of No. 1 inclined holes 4.1 inclined upwardly; the central axis 8 is provided with No. 2 inclined holes 8.1 arranged in a spiral manner and inclined upwardly; the rotating axis 11.2 is provided with No. 3 inclined holes 11.21 arranged in a spiral manner and inclined upwardly. The inclined angles of the No. 1 inclined holes 4.1, the No. 2 inclined holes 8.1 and the No. 3 inclined holes 11.21 are all 5 to 60 degrees, the apertures of the No. 1 inclined holes 4.1 are 0.5 to 10 mm, the apertures of the No. 2 inclined holes 8.1 are 0.5 to 50 mm, and the apertures of the No. 3 inclined holes 11.21 are 0.2 to 50 mm.

[0035] The finishing plate 3 is also provided with a hairiness discharge port 3.1, a hairiness collector 14 is provided in the fluid chamber 5 and is located at the hairiness discharge port 3.1, a filter screen 14.1 is provided in the hairiness collector 14, a discharge port 14.2 is provided on the hairiness collector 14, the discharge port 14.2 is located above the filter screen 14.1, and the discharge port 14.2 discharges to the outside of the finishing kettle 1, and an adsorption unit area 14.3 is provided below the filter screen 14.1 in the hairiness collector 14. A suction port 14.31 is provided on the adsorption unit area 14.3, and the suction port 14.31 is connected to a suction pump 15, and a pipe 16 connected to the fluid outlet 7 is provided on the suction pump 15.

[0036] Embodiment 2: A finishing method of linen fabric using a supercritical carbon dioxide luminescence finishing device, comprising the following steps:

[0037] (1) placing the nano-luminescent material SrAl2O4:Eu in the central axis 8 of the finishing inner cylinder 4, the mass of the nano-luminescent material SrAl2O4:Eu being 0.5% of the mass of the fabric;

[0038] (2) Winding the fabric on the roller 13.1 of the two-turn winding assembly 13;

[0039] (3) Cyclohexane, n-octanol, octylphenol polyoxyethylene ether and water are placed in a co-solvent kettle, and a refrigerator is turned on to produce liquid carbon dioxide. The liquid carbon dioxide is filtered to remove impurities, and a high-pressure pump and a heater are turned on to pressurize and heat the liquid carbon dioxide. When the cyclohexane, n-octanol, octylphenol polyoxyethylene ether and water enter the mixer and are mixed with the pressurized and heated liquid carbon dioxide to reach a microemulsion state, the liquid carbon dioxide enters the finishing kettle 1 from the fluid inlet 6 and flows back to the mixer from the fluid outlet 7 for circulation. When the temperature in the finishing kettle 1 is 35° C., the pressure is 8 MPa, and the carbon dioxide flow rate is 5 g / min, the finishing is carried out in the finishing kettle 1 at a low speed for 5 minutes; when the temperature in the finishing kettle 1 is 60° C., the pressure is 15 MPa, and the carbon dioxide flow rate is 10 g / min, the finishing is carried out in the finishing kettle 1 at a high speed for 20 minutes; the mass of cyclohexane is 0.2% of the mass of the fabric, the mass of n-octanol is 0.2% of the mass of the fabric, the mass of octylphenol polyoxyethylene ether is 0.2% of the mass of the fabric, and the mass of water is 1% of the mass of the fabric;

[0040] (4) After finishing, the high-pressure pump and the heater are turned off, the nano-luminescent material and the carbon dioxide are completely separated, the nano-luminescent material and the carbon dioxide in the finishing kettle 1 are recycled into the separation kettle, and the finishing kettle 1 is opened to take out the fabric.

[0041] Embodiment 3: A finishing method of linen fabric using a supercritical carbon dioxide luminescence finishing device, comprising the following steps:

[0042] (1) placing the nano-luminescent material SrAl2O4:Eu in the central axis 8 of the finishing inner cylinder 4, the mass of the nano-luminescent material SrAl2O4:Eu being 10% of the mass of the fabric;

[0043] (2) Winding the fabric on the roller 13.1 of the two-turn winding assembly 13;

[0044] (3) Cyclohexane, n-octanol, octylphenol polyoxyethylene ether and water are placed in a co-solvent kettle, and a refrigerator is turned on to produce liquid carbon dioxide. The liquid carbon dioxide is filtered to remove impurities, and a high-pressure pump and a heater are turned on to pressurize and heat the liquid carbon dioxide. When the cyclohexane, n-octanol, octylphenol polyoxyethylene ether and water enter the mixer and are mixed with the pressurized and heated liquid carbon dioxide to reach a microemulsion state, the cyclohexane, n-octanol, octylphenol polyoxyethylene ether and water enter the finishing kettle 1 from the fluid inlet 6, and flow back to the mixer from the fluid outlet 7 for circulation finishing. When the temperature in the finishing kettle 1 is 45° C., the pressure is 11 MPa, and the carbon dioxide flow rate is 8 g / min, the finishing is carried out in the finishing kettle 1 for low-speed internal and external circulation finishing for 15 minutes; when the temperature in the finishing kettle 1 is 100° C., the pressure is 22 MPa, and the carbon dioxide flow rate is 30 g / min, the finishing is carried out in the finishing kettle 1 for high-speed internal and external circulation finishing for 100 minutes; the mass of cyclohexane is 25% of the mass of the fabric, the mass of n-octanol is 25% of the mass of the fabric, the mass of octylphenol polyoxyethylene ether is 25% of the mass of the fabric, and the mass of water is 25% of the mass of the fabric;

[0045] (4) After finishing, the high-pressure pump and the heater are turned off, the nano-luminescent material and the carbon dioxide are completely separated, the nano-luminescent material and the carbon dioxide in the finishing kettle 1 are recycled into the separation kettle, and the finishing kettle 1 is opened to take out the fabric.

[0046] Embodiment 4: A finishing method of linen fabric using a supercritical carbon dioxide luminescence finishing device, comprising the following steps:

[0047] (1) placing the nano-luminescent material SrAl2O4:Eu in the central axis 8 of the finishing inner cylinder 4, the mass of the nano-luminescent material SrAl2O4:Eu being 20% ​​of the mass of the fabric;

[0048] (2) Winding the fabric on the roller 13.1 of the two-turn winding assembly 13;

[0049] (3) Cyclohexane, n-octanol, octylphenol polyoxyethylene ether and water are placed in a co-solvent kettle, a refrigerator is turned on to produce liquid carbon dioxide, the liquid carbon dioxide is filtered to remove impurities, a high-pressure pump and a heater are turned on to pressurize and heat the liquid carbon dioxide, and when cyclohexane, n-octanol, octylphenol polyoxyethylene ether and water enter the mixer and are mixed with the pressurized and heated liquid carbon dioxide to reach a microemulsion state, the liquid carbon dioxide enters the finishing kettle from the fluid inlet 6 and flows back to the mixer from the fluid outlet 7 for circulation finishing, when the temperature in the finishing kettle 1 is 60° C., the pressure is 15 MPa, and the carbon dioxide flow rate is 10 g / min, the finishing is carried out in the finishing kettle 1 for low-speed internal and external circulation finishing for 30 minutes; when the temperature in the finishing kettle 1 is 150° C., the pressure is 30 MPa, and the carbon dioxide flow rate is 50 g / min, the finishing is carried out in the finishing kettle 1 for high-speed internal and external circulation finishing for 200 minutes; the mass of cyclohexane is 50% of the mass of the fabric, the mass of n-octanol is 50% of the mass of the fabric, the mass of octylphenol polyoxyethylene ether is 50% of the mass of the fabric, and the mass of water is 50% of the mass of the fabric;

[0050] (4) After finishing, the high-pressure pump and the heater are turned off, the nano-luminescent material and the carbon dioxide are completely separated, the nano-luminescent material and the carbon dioxide in the finishing kettle 1 are recycled into the separation kettle, and the finishing kettle 1 is opened to take out the fabric.

[0051] The described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

Claims

1. A supercritical carbon dioxide luminescent finishing device for linen fabrics, comprising a finishing kettle, a finishing cover is provided on the top of the finishing kettle, characterized in that: The finishing plate separates the finishing kettle into two spaces, the upper space is the finishing inner cylinder, and the lower space is the fluid cavity. The side wall of the finishing inner cylinder is a hollow structure and is connected to the fluid cavity. The fluid cavity is provided with a fluid inlet, and the finishing inner cylinder is provided with a fluid outlet. A central shaft with a hollow structure is provided in the center of the finishing inner cylinder, the interior of the central shaft is connected to the fluid cavity and a mesh plate is provided at the connection point, and the top of the central shaft is open; The top surface of the finishing plate is also provided with an annular slideway, the annular slideway is centered on the central axis, a rotating assembly is provided in the finishing inner cylinder, the rotating assembly includes an annular ring that can rotate and slide on the annular slideway and a plurality of rotating shafts with hollow structures located on the annular ring, and a connecting channel that connects the rotating shaft and the fluid cavity is provided on the annular slideway, the finishing plate and the annular ring; The finishing inner cylinder is also provided with two winding assemblies, which are respectively located on both sides of the rotating assembly, and the winding assemblies include a plurality of rollers; The inner wall of the finishing inner cylinder is provided with a plurality of No. 1 inclined holes inclined upward; the central axis is provided with No. 2 inclined holes with openings inclined upward and arranged in a spiral manner; the rotating axis is provided with No. 3 inclined holes with openings inclined upward and arranged in a spiral manner.

2. The linen fabric supercritical carbon dioxide luminescence finishing device according to claim 1, characterized in that: The inclination angles of the No. 1 inclined hole, the No. 2 inclined hole and the No. 3 inclined hole are all 5-60 degrees, the aperture of the No. 1 inclined hole is 0.5-10 mm, the aperture of the No. 2 inclined hole is 0.5-50 mm, and the aperture of the No. 3 inclined hole is 0.2-50 mm.

3. The linen fabric supercritical carbon dioxide luminescence finishing device according to claim 1, characterized in that: The finishing plate is also provided with a fluff discharge port, a fluff collector is provided in the fluid cavity and is located at the fluff discharge port, a filter screen is provided in the fluff collector, a discharge port is provided on the fluff collector, the discharge port is located near the filter screen, the discharge port discharges to the outside of the finishing kettle, and an adsorption unit area is located below the filter screen in the fluff collector.

4. The linen fabric supercritical carbon dioxide luminescence finishing device according to claim 1, characterized in that: The finishing plate is provided with two circles of protrusions, and the winding assembly comprises an annular clamping ring clamped on the protrusions and a plurality of rollers located on the clamping ring.

5. The linen fabric supercritical carbon dioxide luminescence finishing device according to claim 3, characterized in that: The adsorption unit area is provided with a suction port, the suction port is connected to a suction pump, and the suction pump is provided with a pipeline connected to the fluid outlet.

6. A finishing method for linen fabric using the supercritical carbon dioxide luminescence finishing device as claimed in any one of claims 1 to 5, characterized in that: The following steps are involved: (1) Place the nano-luminescent material SrAl2O4:Eu in the rotating shaft of the finishing inner cylinder; (2) Winding the fabric on the rollers of the two-turn winding assembly; (3) placing cyclohexane, n-octanol, octylphenol polyoxyethylene ether and water in a co-solvent kettle, starting a refrigerator to produce liquid carbon dioxide, removing impurities from the liquid carbon dioxide through a filter, starting a high-pressure pump and a heater, pressurizing and heating the liquid carbon dioxide, and when the cyclohexane, n-octanol, octylphenol polyoxyethylene ether and water enter a mixer and are mixed with the pressurized and heated liquid carbon dioxide to reach a microemulsion state, the liquid carbon dioxide enters a finishing kettle from a fluid inlet, flows back to the mixer from a fluid outlet, and is circulated and finished. The finishing kettle pressure is maintained at 8 to 30 MPa, the temperature is maintained at 35 to 150° C., and the liquid carbon dioxide flow rate is 5 to 50 g / min, and the linen fabric is subjected to luminous finishing for 25 to 230 minutes; (4) After finishing, the high-pressure pump and the heater are turned off, the nano-luminescent material and the carbon dioxide are completely separated, the nano-luminescent material and the carbon dioxide in the finishing kettle are recycled into the separation kettle, and the finishing kettle is opened to take out the fabric.

7. The finishing method of linen fabric using supercritical carbon dioxide luminescence finishing device according to claim 6, characterized in that: When the temperature in the finishing kettle is 35-60°C, the pressure is 8-15MPa, and the carbon dioxide flow rate is 5-10g / min, the finishing is carried out in a low-speed internal and external circulation in the finishing kettle for 5-30min; when the temperature in the finishing kettle is 60-150°C, the pressure is 15-30MPa, and the carbon dioxide flow rate is 10-50g / min, the finishing is carried out in a high-speed internal and external circulation in the finishing kettle for 20-200min.

8. The finishing method of linen fabric using supercritical carbon dioxide luminescence finishing device according to claim 6, characterized in that: The mass of the nano-luminescent material SrAl2O4:Eu is 0.5-20% of the mass of the fabric, the mass of cyclohexane is 0.2-50% of the mass of the fabric, the mass of n-octanol is 0.2-50% of the mass of the fabric, the mass of octylphenol polyoxyethylene ether is 0.2-50% of the mass of the fabric, and the mass of water is 1-50% of the mass of the fabric.

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