A production process for a polyester fabric that protects against near and far infrared radiation

Abstract

This invention relates to a production process for far-infrared and near-infrared resistant polyester fabric, applied in the field of fabric manufacturing technology. The process includes steps such as preparing a far-infrared resistant polyester base fabric, near-infrared resistant dyeing, and conducting durability tests on the far-infrared and near-infrared resistant polyester fabric using a durability testing system. This application achieves simultaneous protection against both far-infrared and near-infrared bands through a blending and spinning process with far-infrared additives and a dyeing process with precise control of near-infrared band reflectivity. This overcomes the limitation of existing technologies that can only protect against a single band. The durability testing system can simultaneously simulate dry friction and immersion washing friction conditions, realistically simulating the composite damage mechanism of polyester fabric products in actual use. This allows for a comprehensive evaluation of the durability performance of polyester fabric products in actual use. By comparing the infrared resistant performance data before and after testing, the attenuation of material performance can be intuitively understood, providing strong support for further optimizing the production process and improving product quality.

Description

Technical Field

[0001] This invention relates to a production process, and more particularly to a production process for a far- and near-infrared resistant polyester fabric applied in the field of fabric production technology. Background Technology

[0002] In modern industry and daily life, polyester fabric is widely used in clothing, home furnishings, military, aerospace, and many other fields due to its excellent physical and chemical properties, such as high strength, high abrasion resistance, good dimensional stability, and wrinkle resistance. However, with technological advancements and the expansion of application scenarios, new requirements have been placed on the infrared protection performance of polyester fabric in special scenarios such as military camouflage, infrared detection protection, medical equipment protection, and high-temperature operation protection. Near-infrared radiation can easily penetrate ordinary polyester fabric, leading to the exposure of related equipment and personnel, or causing adverse effects on the human body from infrared radiation heat. Ordinary polyester fabric can no longer meet the needs of these fields for near-infrared protection.

[0003] While some fabrics with infrared protection exist in the prior art, such as the Chinese patent CN102628226B which discloses a printing process for camouflage fabric that prevents far-infrared detection, and another Chinese patent CN106364106B which discloses a special fabric for counter-reconnaissance equipment that provides near-infrared protection, these existing technologies generally suffer from limited functionality. They can only protect against one of the far-infrared or near-infrared bands, failing to meet the practical application requirement of simultaneous protection against both bands. Therefore, we propose a production process for far-infrared and near-infrared camouflage polyester fabric. Summary of the Invention

[0004] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is: how to produce a polyester fabric that can block both far-infrared and near-infrared rays.

[0005] To address the above problems, this invention provides a manufacturing process for far- and near-infrared resistant polyester fabric, comprising the following steps:

[0006] S1. Preparation of far-infrared resistant polyester base fabric:

[0007] S11. Disperse the far-infrared additive in molten polyester at a mass ratio of 0.01%-10% to form a spinning solution. The far-infrared additive is one or more of the following: oxides or elements of nickel, zirconium, titanium, zinc, silver, aluminum, silicon, copper, carbon, nitrogen, and sulfur, with a particle size of 5nm-5μm.

[0008] S12. Spinning is carried out using spinning solution, and the fineness of the single fiber is controlled to be 0.3-1.5 denier to obtain far-infrared resistant polyester yarn;

[0009] S13. The far-infrared polyester filament is woven by an air-jet loom to obtain a far-infrared polyester base fabric.

[0010] S14. The far-infrared polyester base fabric is subjected to low-temperature and low-alkali treatment. It is treated in a sodium carbonate solution of 0.4-2g / L at 80℃ for 10-30 minutes, and then washed with water for later use.

[0011] S2, Anti-near-infrared dyeing:

[0012] S21. Screen disperse dyes with a reflectance of 10%-70% in the wavelength range of 700nm-1300nm. Disperse dyes include red, yellow, blue, navy blue, black, golden yellow, and turquoise blue.

[0013] S22. Mix two or more disperse dyes in a set ratio, add an environmentally friendly carrier, and dye the far-infrared polyester base fabric treated in step S14 at 115℃-130℃. Adjust the dyeing process so that the final color parameters meet the target color values ​​of L, a, b, C, and H, and the deviation of the reflectance curve in the wavelength range of 700nm-1300nm from the environmental target value is ≤5%. After dyeing, the far-infrared polyester fabric can be obtained.

[0014] In the above-mentioned production process of far-infrared and near-infrared resistant polyester fabric, the produced polyester fabric has both far-infrared and near-infrared resistant functions.

[0015] As a further improvement of this application, the dispersion of the far-infrared additive in step S11 is carried out by high-speed shear stirring or ultrasonic dispersion.

[0016] As a further improvement to this application, in step S13, during weaving, a warp and weft yarn combination of 50D / 72F FDY×50D / 72FFDY is used, with a weaving density of 185×10⁷ and a weight of 60-70 g / m². 2 .

[0017] As a further improvement to this application, the environmentally friendly carrier in step S22 is one of dibutyl phthalate, biphenyl, or decamethylcyclopentasiloxane.

[0018] As another improvement to this application, the manufacturing process further includes the following steps:

[0019] S3: Durability test: The durability of the far-infrared and near-infrared polyester fabric is tested using a durability testing system;

[0020] The durability testing system includes a Fourier transform infrared spectrometer and a simulated friction treatment mechanism. The simulated friction treatment mechanism includes a water washing simulation tank with an open top, filled with washing water. A lifting cylinder is fixedly installed on the outer wall of the water washing simulation tank, and a lifting connecting plate is fixedly connected to the output end of the lifting cylinder. A simulated friction assembly is set above the water washing simulation tank. The simulated friction assembly includes a support base fixedly connected to the lifting connecting plate. The support base is L-shaped, and a friction push-pull cylinder is fixedly installed on the support base. A push-pull connecting plate is fixedly connected to the output end of the friction push-pull cylinder, and a U-shaped connecting seat is fixedly connected to the bottom end of the push-pull connecting plate. A pair of specimen clamps are fixedly connected to the bottom end of the connecting seat. A pair of support columns fixedly installed on the support base are set between the pair of specimen clamps, and a matching friction sleeve is fitted on the top end of the support column.

[0021] As a supplement to another improvement of this application, the durability test includes the following steps:

[0022] S31. Cut a long strip of fabric from the anti-infrared polyester fabric as a test piece. The length of the test piece should match the distance between the two test piece clamps.

[0023] S32. Test the far-infrared and near-infrared protection performance of the test specimen using a Fourier transform infrared spectrometer and record the corresponding data.

[0024] S33. Insert the specimen between the two friction sleeves and clamp both ends of the specimen using the specimen clamp;

[0025] S34. Preset a drying friction time, start the friction push-pull cylinder, so that the friction push-pull cylinder drives the specimen to move back and forth, so that the friction sleeve performs a drying simulation friction treatment on the specimen while the specimen is dry.

[0026] S35. A water washing friction time is preset. After the drying simulation friction treatment time is reached, the lifting cylinder is activated to move the simulated friction component downward until the specimen is submerged in the water washing water to perform water washing simulation friction treatment on the specimen.

[0027] S36. After the water washing simulated friction treatment time reaches the water washing friction duration, close the friction push-pull cylinder and control the lifting cylinder to drive the simulated friction component to move upward and reset, and then remove the specimen.

[0028] S37. Use a Fourier transform infrared spectrometer to re-examine the far-infrared and near-infrared protection performance of the test specimen and record the corresponding data.

[0029] S38. Based on the data recorded twice, calculate the attenuation rate of the far-infrared protection performance and near-infrared protection performance of the specimen to evaluate the durability of the far-infrared and near-infrared protection polyester fabric.

[0030] As a supplement to another improvement of this application, an anti-rotation insert rod is fixedly installed on the inner wall of the friction sleeve. The anti-rotation insert rod is set in the shape of a cuboid, and an anti-rotation slot matching the anti-rotation insert rod is opened at the top of the support column. The anti-rotation insert rod and the anti-rotation slot are movably inserted into each other. The friction sleeve is provided with various specifications according to its thickness.

[0031] As another improvement of this application, the simulated friction treatment mechanism also includes a drying cross assembly, which includes a heating cylinder, a heater fixedly installed inside the heating cylinder, an air pump fixedly installed on the outer wall of the heating cylinder, the air inlet of the air pump being connected to the interior of the heating cylinder, and the air outlet of the air pump being connected to an air guide pipe.

[0032] As a further improvement to this application, the baking auxiliary cross assembly also includes a flow guide box disposed inside the connecting seat. The end of the air guide pipe away from the air pump is connected to the flow guide box. Multiple air guide holes are opened at the bottom of the flow guide box. An air inlet pipe is disposed on the outer wall of the heating cylinder and is connected to it. A heater is disposed on the air inlet pipe.

[0033] As a further improvement to this application, the simulated friction treatment mechanism also includes a test control unit, which includes a test setting module, a test control module, and a drying control module. The test setting module and the test control module are connected by signals. The test control module is connected by signals to the lifting cylinder, the friction push-pull cylinder, and the drying control module. The drying control module is connected by signals to the air pump and the heater.

[0034] In summary, this application achieves simultaneous protection against both far-infrared and near-infrared bands through blending and spinning with far-infrared additives and a dyeing process that precisely controls the reflectivity of the near-infrared band, overcoming the limitation of existing technologies that can only protect against a single band. The durability testing system can simultaneously simulate dry friction and immersion washing friction conditions, realistically simulating the composite damage mechanism of polyester fabric products in actual use. This allows for a comprehensive evaluation of the durability performance of polyester fabric products in actual use. By comparing the infrared protection performance data before and after testing, the attenuation of material performance can be intuitively understood, providing strong support for further optimizing production processes and improving product quality. Through the combined setup of drying-assisted cross-components and intelligent testing control units, dry simulated friction treatment and water-wash simulated friction treatment can be alternated during durability testing, further improving the realism of the simulation and thus the accuracy of the test. It also greatly enhances the automation and intelligence of the test. Attached Figure Description

[0035] Figure 1 This is a process flow diagram of the first embodiment of this application;

[0036] Figure 2 This is a three-dimensional structural diagram of the proposed friction treatment mechanism in the second embodiment of this application;

[0037] Figure 3 This is a three-dimensional structural diagram of the simulated friction assembly in the second embodiment of this application;

[0038] Figure 4 This is a cross-sectional view of the friction sleeve in the second embodiment of this application;

[0039] Figure 5 This is a three-dimensional structural diagram of the proposed friction treatment mechanism in the third embodiment of this application;

[0040] Figure 6 This is a three-dimensional structural diagram of the baking auxiliary cross component in the third embodiment of this application;

[0041] Figure 7 This is a cross-sectional view of the flow guide box in the third embodiment of this application;

[0042] Figure 8 This is a structural block diagram of the test intelligent control unit in the third embodiment of this application.

[0043] Explanation of the labels in the diagram:

[0044] 101. Water washing simulation tank; 102. Lifting cylinder; 103. Lifting connecting plate; 201. Support base; 202. Friction push-pull cylinder; 203. Push-pull connecting plate; 204. Connecting base; 205. Specimen clamp; 206. Support column; 207. Friction sleeve; 208. Anti-rotation insert rod; 209. Anti-rotation slot; 301. Heating cylinder; 302. Air pump; 303. Air guide pipe; 304. Flow guide box; 305. Air guide hole; 306. Air inlet pipe; 307. Solenoid valve. Detailed Implementation

[0045] The three embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0046] First implementation method:

[0047] Figure 1 The following steps are shown in the manufacturing process of a polyester fabric that blocks near and far infrared radiation:

[0048] S1. Preparation of far-infrared resistant polyester base fabric:

[0049] S11. Disperse the far-infrared additive in molten polyester at a mass ratio of 0.01%-10% to form a spinning solution. The far-infrared additive is one or more of the following: oxides or elements of nickel, zirconium, titanium, zinc, silver, aluminum, silicon, copper, carbon, nitrogen, and sulfur, with a particle size of 5nm-5μm.

[0050] S12. Spinning is carried out using spinning solution, and the fineness of the single fiber is controlled to be 0.3-1.5 denier to obtain far-infrared resistant polyester yarn;

[0051] S13. The far-infrared polyester filament is woven by an air-jet loom to obtain a far-infrared polyester base fabric.

[0052] S14. The far-infrared polyester base fabric is subjected to low-temperature and low-alkali treatment. It is treated in a sodium carbonate solution of 0.4-2g / L at 80℃ for 10-30 minutes, and then washed with water for later use.

[0053] S2, Anti-near-infrared dyeing:

[0054] S21. Screen disperse dyes with a reflectance of 10%-70% in the wavelength range of 700nm-1300nm. Disperse dyes include red, yellow, blue, navy blue, black, golden yellow, and turquoise blue.

[0055] S22. Mix two or more disperse dyes in a set ratio, add an environmentally friendly carrier, and dye the far-infrared polyester base fabric treated in step S14 at 115℃-130℃. Adjust the dyeing process so that the final color parameters meet the target color values ​​of L, a, b, C, and H, and the deviation of the reflectance curve in the wavelength range of 700nm-1300nm from the environmental target value is ≤5%. After dyeing, the far-infrared polyester fabric can be obtained.

[0056] In step S11, the far-infrared additive is dispersed by high-speed shear stirring or ultrasonic dispersion.

[0057] In step S13, during weaving, a warp and weft yarn combination of 50D / 72F FDY×50D / 72F FDY is used, with a weaving density of 185×107 and a weight of 60-70 g / m². 2 .

[0058] The environmentally friendly carrier in step S22 is one of dibutyl phthalate, biphenyl, or decamethylcyclopentasiloxane.

[0059] This application achieves simultaneous protection against both far-infrared and near-infrared bands through blending and spinning with far-infrared additives and a dyeing process that precisely controls the reflectivity of the near-infrared band, thus overcoming the limitation of existing technologies that can only protect against a single band.

[0060] Second implementation method:

[0061] Figures 2-4 The present invention illustrates a manufacturing process for a far- and near-infrared resistant polyester fabric, which, unlike the first embodiment, further includes the following steps:

[0062] S3: Durability test: The durability of the far-infrared and near-infrared polyester fabric is tested using a durability testing system;

[0063] The durability testing system includes a Fourier transform infrared spectrometer and a simulated friction treatment mechanism. The simulated friction treatment mechanism includes a water washing simulation tank 101, with an open top and filled with washing water (tap water; to improve the realism of the simulation, a suitable amount of detergent or washing powder can be added). A lifting cylinder 102 is fixedly installed on the outer wall of the water washing simulation tank 101, and a lifting connecting plate 103 is fixedly connected to the output end of the lifting cylinder 102. A simulated friction assembly is installed above the water washing simulation tank 101 to simulate friction. The rubbing assembly includes a support base 201 fixedly connected to a lifting connecting plate 103. The support base 201 is L-shaped. A friction push-pull cylinder 202 is fixedly installed on the support base 201. A push-pull connecting plate 203 is fixedly connected to the output end of the friction push-pull cylinder 202. A U-shaped connecting seat 204 is fixedly connected to the bottom end of the push-pull connecting plate 203. A pair of specimen clamps 205 are fixedly connected to the bottom end of the connecting seat 204. A pair of support columns 206 fixedly installed on the support base 201 are arranged between the pair of specimen clamps 205. A matching friction sleeve 207 is sleeved on the top end of the support column 206.

[0064] Due to its unique optical properties, near-infrared resistant polyester fabric has significant applications in military camouflage, tactical equipment, and medical protection, and can be used to manufacture camouflage combat uniforms, tactical backpacks, infrared shielding veils, and medical thermal protective gear. However, in actual use, this type of fabric is subjected to frequent mechanical friction and, as a non-disposable product, requires multiple washes. The surface damage caused by friction and the loss of functional components during washing can both lead to a decrease in the fabric's infrared resistant properties. To ensure the reliability of this material under complex usage scenarios, systematic durability testing is necessary.

[0065] For ease of description, we refer to the mechanical friction experienced by the anti-infrared polyester fabric product during actual use as daily friction. Polyester fabric products also experience friction when washed, but the difference is that during washing, the product is subjected to friction while immersed in water, while daily friction occurs in a relatively dry condition.

[0066] Durability testing includes the following steps:

[0067] S31. Cut a long strip of fabric from the anti-infrared polyester fabric as a test piece. The length of the test piece should match the distance between the two test piece clamps 205.

[0068] S32. Test the far-infrared and near-infrared protection performance of the test specimen using a Fourier transform infrared spectrometer and record the corresponding data.

[0069] S33. Insert the specimen between the two friction sleeves 207 and clamp both ends of the specimen using the specimen clamp 205;

[0070] S34. Preset a drying friction time (the drying friction time is set according to the application scenario and actual needs, etc.), start the friction push-pull cylinder 202, so that the friction push-pull cylinder 202 drives the specimen to move back and forth, so that the friction sleeve 207 performs a drying simulation friction treatment on the specimen when the specimen is dry (that is, the specimen is rubbed in a way that simulates daily friction).

[0071] S35. A water washing friction time is preset (the water washing friction time is set according to the application scenario and actual needs, etc.). After the drying simulation friction treatment time reaches the drying friction time, the lifting cylinder 102 is started, so that the lifting cylinder 102 drives the simulation friction component to move downward until the specimen is submerged in the water washing water to perform water washing simulation friction treatment on the specimen (that is, to perform friction treatment on the specimen in the form of simulated water washing).

[0072] S36. After the water washing simulated friction treatment time reaches the water washing friction duration, close the friction push-pull cylinder 202 and control the lifting cylinder 102 to drive the simulated friction component to move upward and reset, and then remove the test piece.

[0073] S37. Use a Fourier transform infrared spectrometer to re-examine the far-infrared and near-infrared protection performance of the test specimen and record the corresponding data.

[0074] S38. Based on the data recorded twice, calculate the attenuation rate of the far-infrared protection performance and near-infrared protection performance of the specimen to evaluate the durability of the far-infrared and near-infrared protection polyester fabric.

[0075] In this embodiment, the durability testing system can simultaneously simulate dry friction and immersion washing friction conditions, realistically simulating the composite damage mechanism of polyester fabric products in actual use. This allows for a comprehensive evaluation of the durability performance of polyester fabric products in actual use. By comparing the infrared protection performance data before and after the test, the degradation of material performance can be intuitively understood, providing strong support for further optimizing production processes and improving product quality.

[0076] An anti-rotation insert 208 is fixedly installed on the inner wall of the friction sleeve 207. The anti-rotation insert 208 is set in a cuboid shape, so that the friction sleeve 207 cannot rotate, thereby ensuring the friction effect. The top of the support column 206 is provided with an anti-rotation slot 209 that matches the anti-rotation insert 208. The anti-rotation insert 208 and the anti-rotation slot 209 are movably inserted into each other. The friction sleeve 207 is provided in various specifications according to its thickness, so that it can be adapted to the thickness of the far-infrared and near-infrared polyester cloth by changing the friction sleeve 207 of different specifications. For thicker polyester cloth, a thinner friction sleeve 207 can be used, and for thinner polyester cloth, a thicker friction sleeve 207 can be used.

[0077] The third implementation method:

[0078] Please see Figures 5-8 Unlike the second embodiment, the pseudo-friction treatment mechanism also includes a drying auxiliary cross assembly. The drying auxiliary cross assembly includes a heating cylinder 301, inside which a heater 308 is fixedly installed. An air pump 302 is fixedly installed on the outer wall of the heating cylinder 301. The air inlet of the air pump 302 is connected to the interior of the heating cylinder 301, and the air outlet of the air pump 302 is connected to an air guide pipe 303. The drying auxiliary cross assembly also includes a flow guide box 304 disposed inside the connecting seat 204. The end of the air guide pipe 303 away from the air pump 302 is connected to the flow guide box 304. Multiple air guide holes 305 are provided at the bottom of the heating cylinder 301. An air inlet pipe 306 is provided on the outer wall of the heating cylinder 301 and is connected to it. A heater 308 is provided on the air inlet pipe 306. The simulated friction treatment mechanism also includes a test intelligent control unit. The test intelligent control unit includes a test setting module, a test control module, and a drying control module. The test setting module and the test control module are connected by signal. The test control module is connected by signal to the lifting cylinder 102, the friction push-pull cylinder 202, and the drying control module. The drying control module is connected by signal to the air pump 302 and the heater 308.

[0079] In practical applications, daily friction and water washing friction usually occur alternately. To further improve the realism of the simulation and the accuracy of the test, in this embodiment, before conducting the durability test, the single dry friction duration and single water washing duration, as well as the number of alternating friction cycles, can be reasonably set through the test setting module according to factors such as the application scenario and actual needs. During the durability test, after the specimen is installed, the test control module will activate the friction push-pull cylinder 202, causing the friction push-pull cylinder 202 to move the specimen back and forth to perform dry simulated friction treatment. After the dry simulated friction treatment time reaches the single dry friction duration, the test control module will control the lifting cylinder 102 to move the simulated friction component downward, causing the specimen to be submerged in the water washing water to perform water washing simulated friction treatment. At the same time, the test control module will also send a heating command to the drying control module, causing the drying control module to activate the heater 308 to heat the air in the heating cylinder 301. After the water washing simulated friction treatment time reaches the single water washing duration, the test control module will control the lifting cylinder 102... The simulated friction component moves upward to reset and closes the friction push-pull cylinder 202. Simultaneously, the test control module sends a drying command to the drying control module, causing the drying control module to start the air pump 302. This air pump 302 delivers hot air from the heating cylinder 301 to the guide box 304, and the hot air is sprayed onto the test piece through the air guide hole 305 to dry the test piece. (While starting the air pump 302, the test control module also opens the solenoid valve 307 to replenish air into the heating cylinder 301.) This completes one cycle of alternating friction. After the test piece is dried, the test control module restarts the friction push-pull cylinder 202 to perform a drying simulated friction treatment on the test piece. This process is repeated until the preset number of alternating friction cycles is completed. Therefore, through the combined setting of the drying-aid cross component and the test intelligent control unit, the drying simulated friction treatment and the water washing simulated friction treatment can be performed alternately during durability testing, thereby further improving the realism of the simulation and the accuracy of the test. At the same time, it also greatly improves the automation and intelligence of the test.

[0080] In light of current practical needs, the above-described embodiments adopted in this application are not limited to these. Any changes made within the scope of knowledge possessed by those skilled in the art without departing from the concept of this application still fall within the protection scope of this invention.

Claims

1. A manufacturing process for a polyester fabric that protects against near and far infrared radiation, characterized in that, Includes the following steps: S1. Preparation of far-infrared resistant polyester base fabric: S11. Disperse the far-infrared additive in molten polyester at a mass ratio of 0.01%-10% to form a spinning solution. The far-infrared additive is one or more of the following: oxides or elements of nickel, zirconium, titanium, zinc, silver, aluminum, silicon, copper, carbon, nitrogen, and sulfur, with a particle size of 5nm-5μm. S12. Spinning is carried out using spinning solution, and the fineness of the single fiber is controlled to be 0.3-1.5 denier to obtain far-infrared polyester yarn; S13. The far-infrared polyester filament is woven by an air-jet loom to obtain a far-infrared polyester base fabric. S14. The far-infrared polyester base fabric is subjected to low-temperature and low-alkali treatment. It is treated in a sodium carbonate solution of 0.4-2g / L at 80℃ for 10-30 minutes, and then washed with water for later use. S2, Anti-near-infrared dyeing: S21. Screening disperse dyes with a reflectance of 10%-70% in the wavelength range of 700nm-1300nm, wherein the disperse dyes include red, yellow, blue, navy blue, black, golden yellow, and turquoise blue; S22. Mix two or more disperse dyes in a set ratio, add an environmentally friendly carrier, and dye the far-infrared polyester base fabric treated in step S14 at 115℃-130℃. Adjust the dyeing process so that the final color parameters meet the target color values ​​of L, a, b, C, and H, and the reflectance curve in the wavelength range of 700nm-1300nm deviates from the environmental target value by ≤5%. After dyeing, the far-infrared polyester fabric can be obtained. S3: Durability test: The durability of the far-infrared and near-infrared polyester fabric is tested using a durability testing system; The durability testing system includes a Fourier transform infrared spectrometer and a simulated friction treatment mechanism. The simulated friction treatment mechanism includes a water washing simulation tank (101), the top of which is open and filled with washing water. A lifting cylinder (102) is fixedly installed on the outer wall of the water washing simulation tank (101), and a lifting connecting plate (103) is fixedly connected to the output end of the lifting cylinder (102). A simulated friction assembly is provided above the water washing simulation tank (101). The simulated friction assembly includes a support base (201) fixedly connected to the lifting connecting plate (103). The support base (201) is L-shaped, and a friction push-pull cylinder (202) is fixedly installed on the support base (201). The output end of the friction push-pull cylinder (202) is fixedly connected to the push-pull connecting plate (103). 203), the bottom end of the push-pull connecting plate (203) is fixedly connected to a U-shaped connecting seat (204), the bottom end of the connecting seat (204) is fixedly connected to a pair of specimen clamps (205), a pair of support columns (206) are provided between the pair of specimen clamps (205) and fixedly installed on the support base (201), the top end of the support column (206) is fitted with a matching friction sleeve (207); the pseudo-friction treatment mechanism also includes a drying cross assembly, the drying cross assembly includes a heating cylinder (301), a heater (308) is fixedly installed inside the heating cylinder (301), an air pump (302) is fixedly installed on the outer wall of the heating cylinder (301), the air inlet of the air pump (302) is connected to the inside of the heating cylinder (301), and the air outlet of the air pump (302) is connected to a guide pipe (303).

2. The production process of a far- and near-infrared resistant polyester fabric according to claim 1, characterized in that, In step S11, the far-infrared additive is dispersed by high-speed shear stirring or ultrasonic dispersion.

3. The production process of a far- and near-infrared resistant polyester fabric according to claim 1, characterized in that, In step S13, during weaving, a warp and weft yarn combination of 50D / 72F FDY×50D / 72F FDY is used, with a weaving density of 185×107 and a weight of 60-70 g / m². 2 .

4. The production process of a far- and near-infrared resistant polyester fabric according to claim 1, characterized in that, The environmentally friendly carrier in step S22 is one of dibutyl phthalate, biphenyl, or decamethylcyclopentasiloxane.

5. The production process of a far- and near-infrared resistant polyester fabric according to claim 1, characterized in that, The durability test includes the following steps: S31. Cut a strip of fabric from the anti-infrared polyester fabric as a test piece. The length of the test piece is matched with the distance between the two test piece clamps (205). S32. Test the far-infrared and near-infrared protection performance of the test specimen using a Fourier transform infrared spectrometer and record the corresponding data. S33. Insert the specimen between the two friction sleeves (207) and clamp both ends of the specimen using the specimen clamp (205); S34. Preset a drying friction time, start the friction push-pull cylinder (202), so that the friction push-pull cylinder (202) drives the specimen to move back and forth, so that the friction sleeve (207) performs a drying simulation friction treatment on the specimen when the specimen is dry; S35. A water washing friction time is preset. After the drying simulation friction treatment time reaches the drying friction time, the lifting cylinder (102) is started, so that the lifting cylinder (102) drives the simulation friction component to move downward until the specimen is submerged in the water washing water to perform water washing simulation friction treatment on the specimen. S36. After the water washing simulated friction treatment time reaches the water washing friction time, close the friction push-pull cylinder (202) and control the lifting cylinder (102) to drive the simulated friction component to move upward and reset, and then remove the specimen; S37. Use a Fourier transform infrared spectrometer to re-examine the far-infrared and near-infrared protection performance of the test specimen and record the corresponding data. S38. Based on the data recorded twice, calculate the attenuation rate of the far-infrared protection performance and near-infrared protection performance of the specimen to evaluate the durability of the far-infrared and near-infrared protection polyester fabric.

6. The production process of a far- and near-infrared resistant polyester fabric according to claim 5, characterized in that, An anti-rotation insert (208) is fixedly installed on the inner wall of the friction sleeve (207). The anti-rotation insert (208) is set in the shape of a cuboid. The top of the support column (206) is provided with an anti-rotation slot (209) that matches the anti-rotation insert (208). The anti-rotation insert (208) and the anti-rotation slot (209) are movably inserted into each other. The friction sleeve (207) is provided with various specifications according to its thickness.

7. The production process of a far- and near-infrared resistant polyester fabric according to claim 1, characterized in that, The drying cross assembly also includes a flow guide box (304) disposed inside the connecting seat (204). The end of the air guide pipe (303) away from the air pump (302) is connected to the flow guide box (304). The bottom end of the flow guide box (304) is provided with a plurality of air guide holes (305). An air inlet pipe (306) is disposed on the outer wall of the heating cylinder (301) and is connected thereto. A heater (308) is disposed on the air inlet pipe (306).

8. The production process of a far- and near-infrared resistant polyester fabric according to claim 7, characterized in that, The simulated friction treatment mechanism also includes a test intelligent control unit, which includes a test setting module, a test control module, and a drying control module. The test setting module and the test control module are signal connected. The test control module is signal connected to the lifting cylinder (102), the friction push-pull cylinder (202), and the drying control module. The drying control module is signal connected to the air pump (302) and the heater (308).

Images