Preparation method of multi-layer composite low-static dust-free cloth

Abstract

The invention belongs to the technical field of dust-free cloth, and particularly relates to a preparation method of multi-layer composite low-static dust-free cloth, the multi-layer composite low-static dust-free cloth is formed by compounding polyester fabric, and the surface wiping effect is good; in addition, the multi-layer composite mode is adopted, so that the device is fluffy and large in liquid absorption amount, the most important point is that the impedance conforms to 1012 (10 < 12 > power) ohm, the impedance value can block instant increase of current, a circuit can be protected, damage to a wiped precision instrument caused by too large current can be prevented, and wiping is facilitated. In conclusion, the dust-free cloth prepared by the preparation method of the multi-layer composite low-static dust-free cloth is high in detergency, high in static resistance and suitable for popularization and application.

Description

Technical Field

[0001] This invention belongs to the field of cleanroom cloth technology, and particularly relates to a method for preparing a multi-layer composite low-static cleanroom cloth. Background Technology

[0002] Cleanroom wipes are widely used in semiconductor assembly lines, LCD display product lines, precision instrument lines, optical product lines, medical equipment lines, and cleanrooms. Common cleanroom wipes are mostly single-layered, with relatively weak fluffiness and antistatic properties, which cannot meet the requirements of cleanroom wiping operations. Summary of the Invention

[0003] To overcome the deficiencies in the prior art, the technical solution adopted by the present invention to solve its technical problem is: a method for preparing a multilayer composite low-static cleanroom cloth, characterized by the following steps: (1) Determine the polyester white fabric, which is made of 75D / 36F polyester yarn for both warp and weft yarns. The width of the white fabric is 200 cm and the weight of the white fabric is 70-80 grams per square meter. (2) First refining: Add room temperature pure water to the dyeing vat so that the weight ratio of white fabric to pure water in the vat is 1:13-16. Then, when the temperature of the pure water in the dyeing vat reaches 70 degrees, add 1.0-1.5 grams of chemical refining agent per liter of pure water and 1.5-2.0 grams of chemical caustic soda per liter of pure water. Continue to raise the temperature to 85 degrees Celsius and keep it warm for 40-50 minutes. Stir constantly during the warming process. Then, lower the temperature to 60 degrees and drain the water. (3) Second refining: Then add room temperature pure water to the dyeing vat again, so that the weight ratio of white fabric to pure water in the washing vat is 1:14-16. Then raise the temperature of the pure water in the dyeing vat to 60 degrees, add 2.0-2.5 grams of moisture-wicking agent per liter of pure water, continue to raise the temperature to 80 degrees, keep it warm for 10-20 minutes, and stir constantly during the warming process and drain the water. (4) Third refining: Then add room temperature pure water to the dyeing vat again, so that the weight ratio of white fabric to pure water in the washing vat is 1:9-11. Then raise the temperature of the pure water in the dyeing vat to 35 degrees, add 5.0-7.0 grams of low resistance agent per liter of pure water, continue to raise the temperature to 40 degrees, keep it warm for 20-30 minutes, and stir constantly during the warming process and drain the water. (5) Shaping: The shaping machine has 7 sections, is heated by natural gas combustion, the shaping temperature is 180℃, the main machine speed is 30-40 meters per minute, the upper overrun is 0-3 meters per minute, the lower overrun is 0-2 meters per minute, the fabric output overrun is 0.8 meters per minute, the tension is 40-45 Newtons, the width of the greige fabric after shaping is 170-175 cm, the weight is 80-90 grams per square meter, the thickness is 0.40-0.50 mm, the water absorption time is less than 40 seconds, the water absorption is greater than 300 ml per square meter, and the single layer impedance value is 10 to the power of 12 ohms; (6) Composite: Depending on the specific requirements, the polyester white fabric treated in step (5) is composited in three or four layers. (7) Cutting and packaging: Laser cutting is used in the radial and weft directions according to the requirements, and then the cut composite fabric is packaged to complete the preparation of multi-layer composite low static dust-free cloth.

[0004] This invention relates to a method for preparing a multi-layer composite low-static cleanroom cloth. This multi-layer composite low-static cleanroom cloth is made of polyester fabric, offering excellent surface wiping performance. Furthermore, its multi-layer composite structure makes it fluffy and highly absorbent. Most importantly, its impedance meets the 10... 12 The impedance of 10 to the power of 12 ohms can block a sudden increase in current, protecting the circuit and preventing damage to precision instruments from excessive current, thus facilitating cleaning. In summary, the cleanroom cloth prepared by this multi-layer composite low-static cleanroom cloth preparation method has strong cleaning power and strong antistatic properties, making it suitable for widespread use. Detailed Implementation

[0005] Specific embodiment one: A method for preparing a multilayer composite low-static cleanroom cloth, characterized by the following steps: (1) Determine the polyester white fabric, which is made of 75D / 36F polyester yarn for both warp and weft yarns. The width of the white fabric is 200 cm and the weight of the white fabric is 70 g / m². (2) First refining: Add room temperature pure water to the dyeing vat so that the weight ratio of white fabric to pure water in the vat is 1:13. Then, when the temperature of the pure water in the dyeing vat is raised to 70 degrees, add 1.0 g of refining agent per liter of pure water and 1.5 g of caustic soda per liter of pure water. Continue to raise the temperature to 85 degrees Celsius and keep it warm for 40 minutes. Stir constantly during the warming process. Then, lower the temperature to 60 degrees and drain the water. (3) Second refining: Then add room temperature pure water to the dyeing vat again, so that the weight ratio of white fabric to pure water in the washing vat is 1:14. Then raise the temperature of the pure water in the dyeing vat to 60 degrees, add 2.0 grams of moisture-wicking agent per liter of pure water, continue to raise the temperature to 80 degrees, keep it warm for 10 minutes, and stir constantly during the warming process and drain the water. (4) Third refining: Then add room temperature pure water to the dyeing vat again, so that the weight ratio of white fabric to pure water in the washing vat is 1:9. Then raise the temperature of the pure water in the dyeing vat to 35 degrees, add 5.0 grams of low resistance agent per liter of pure water, continue to raise the temperature to 40 degrees, keep it warm for 20 minutes, stir constantly during the warming process, and drain the water. (5) Shaping: The shaping machine has 7 sections, is heated by natural gas combustion, the shaping temperature is 180℃, the main machine speed is 30 meters per minute, the upper overrun is 1 meter per minute, the lower overrun is 1 meter per minute, the fabric output overrun is 0.8 meters per minute, the tension is 40 Newtons, the width of the greige fabric after shaping is 170 cm, the weight is 80 grams per square meter, the thickness is 0.40 mm, the water absorption time is less than 40 seconds, the water absorption is greater than 300 ml per square meter, and the single layer impedance is 10 to the power of 12 ohms; (6) Composite: Depending on the specific requirements, the polyester white fabric treated in step (5) is composited in three or four layers. (7) Cutting and packaging: Laser cutting is used in the radial and weft directions according to the requirements, and then the cut composite fabric is packaged to complete the preparation of multi-layer composite low static dust-free cloth.

[0006] Specific embodiment two: A method for preparing a multilayer composite low-static cleanroom cloth, characterized by the following steps: (1) Determine the polyester white fabric, which is made of 75D / 36F polyester yarn for both warp and weft yarns. The width of the white fabric is 200 cm and the weight of the white fabric is 75 g / m². (2) First refining: Add room temperature pure water to the dyeing vat so that the weight ratio of white fabric to pure water in the vat is 1:15. Then, when the temperature of the pure water in the dyeing vat is raised to 70 degrees, add 1.3 grams of refining agent per liter of pure water and 1.8 grams of caustic soda per liter of pure water. Continue to raise the temperature to 85 degrees Celsius and keep it warm for 45 minutes. Stir constantly during the warming process. Then, lower the temperature to 60 degrees and drain the water. (3) Second refining: Then add room temperature pure water to the dyeing vat again, so that the weight ratio of white fabric to pure water in the washing vat is 1:15. Then raise the temperature of the pure water in the dyeing vat to 60 degrees, add 2.3 grams of moisture-wicking agent per liter of pure water, continue to raise the temperature to 80 degrees, keep it warm for 15 minutes, and stir constantly during the warming process and drain the water. (4) Third refining: Then add room temperature pure water to the dyeing vat again, so that the weight ratio of white fabric to pure water in the washing vat is 1:10. Then raise the temperature of the pure water in the dyeing vat to 35 degrees, add 6.0 grams of low resistance agent per liter of pure water, continue to raise the temperature to 40 degrees, keep it warm for 25 minutes, and stir constantly during the warming process and drain the water. (5) Shaping: The shaping machine has 7 sections, is heated by natural gas combustion, the shaping temperature is 180℃, the main machine speed is 35 meters per minute, the upper overrun is 2 meters per minute, the lower overrun is 1 meter per minute, the fabric output overrun is 0.8 meters per minute, the tension is 43 Newtons, the width of the greige fabric after shaping is 172 cm, the weight is 85 g / m², the thickness is 0.45 mm, the water absorption time is less than 40 seconds, the water absorption is greater than 300 ml / m², and the single-layer impedance value is 10 to the power of 12 ohms; (6) Composite: Depending on the specific requirements, the polyester white fabric treated in step (5) is composited in three or four layers. (7) Cutting and packaging: Laser cutting is used in the radial and weft directions according to the requirements, and then the cut composite fabric is packaged to complete the preparation of multi-layer composite low static dust-free cloth.

[0007] Specific embodiment three: A method for preparing a multilayer composite low-static cleanroom cloth, characterized by the following steps: (1) Determine the polyester white fabric, which is made of 75D / 36F polyester yarn for both warp and weft yarns. The width of the white fabric is 200 cm and the weight of the white fabric is 80 g / m². (2) First refining: Add room temperature pure water to the dyeing vat so that the weight ratio of white fabric to pure water in the vat is 1:16. Then, when the temperature of the pure water in the dyeing vat is raised to 70 degrees, add 1.5 grams of refining agent per liter of pure water and 2.0 grams of caustic soda per liter of pure water. Continue to raise the temperature to 85 degrees Celsius and keep it warm for 50 minutes. Stir constantly during the warming process. Then, lower the temperature to 60 degrees and drain the water. (3) Second refining: Then add room temperature pure water to the dyeing vat again, so that the weight ratio of white fabric to pure water in the washing vat is 1:16. Then raise the temperature of the pure water in the dyeing vat to 60 degrees, add 2.5 grams of moisture-wicking agent per liter of pure water, continue to raise the temperature to 80 degrees, keep warm for 20 minutes, and stir constantly during the warming process and drain the water. (4) Third refining: Then add room temperature pure water to the dyeing vat again, so that the weight ratio of white fabric to pure water in the washing vat is 1:11. Then raise the temperature of the pure water in the dyeing vat to 35 degrees, add 7.0 grams of low resistance agent per liter of pure water, continue to raise the temperature to 40 degrees, keep it warm for 30 minutes, and stir constantly during the warming process and drain the water. (5) Shaping: The shaping machine has 7 sections, is heated by natural gas combustion, the shaping temperature is 180℃, the main speed is 40 meters per minute, the upper overrun is 3 meters per minute, the lower overrun is 2 meters per minute, the fabric output overrun is 0.8 meters per minute, the tension is 45 Newtons, the width of the greige fabric after shaping is 175 cm, the weight is 90 grams per square meter, the thickness is 0.50 mm, the water absorption time is less than 40 seconds, the water absorption is greater than 300 ml per square meter, and the single layer impedance is 10 to the power of 12 ohms; (6) Composite: Depending on the specific requirements, the polyester white fabric treated in step (5) is composited in three or four layers. (7) Cutting and packaging: Laser cutting is used in the radial and weft directions according to the requirements, and then the cut composite fabric is packaged to complete the preparation of multi-layer composite low static dust-free cloth.

[0008] This invention relates to a method for preparing a multi-layer composite low-static cleanroom cloth. This multi-layer composite low-static cleanroom cloth is made of polyester fabric, offering excellent surface wiping performance. Furthermore, its multi-layer composite structure makes it fluffy and highly absorbent. Most importantly, its impedance meets the 10... 12 The impedance of 10 to the power of 12 ohms can block a sudden increase in current, protecting the circuit and preventing damage to precision instruments from excessive current, thus facilitating cleaning. In summary, the cleanroom cloth prepared by this multi-layer composite low-static cleanroom cloth preparation method has strong cleaning power and strong antistatic properties, making it suitable for widespread use.

[0009] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A method for preparing a multilayer composite low-static cleanroom cloth, characterized in that... The steps are as follows: (1) Determine the polyester white fabric, which is made of 75D / 36F polyester yarn for both warp and weft yarns. The width of the white fabric is 200 cm and the weight of the white fabric is 70-80 grams per square meter. (2) First refining: Add room temperature pure water to the dyeing vat so that the weight ratio of white fabric to pure water in the vat is 1:13-16. Then, when the temperature of the pure water in the dyeing vat reaches 70 degrees, add 1.0-1.5 grams of chemical refining agent per liter of pure water and 1.5-2.0 grams of chemical caustic soda per liter of pure water. Continue to raise the temperature to 85 degrees Celsius and keep it warm for 40-50 minutes. Stir constantly during the warming process. Then, lower the temperature to 60 degrees and drain the water. (3) Second refining: Then add room temperature pure water to the dyeing vat again, so that the weight ratio of white fabric to pure water in the washing vat is 1:14-16. Then raise the temperature of the pure water in the dyeing vat to 60 degrees, add 2.0-2.5 grams of moisture-wicking agent per liter of pure water, continue to raise the temperature to 80 degrees, keep it warm for 10-20 minutes, and stir constantly during the warming process and drain the water. (4) Third refining: Then add room temperature pure water to the dyeing vat again, so that the weight ratio of white fabric to pure water in the washing vat is 1:9-11. Then raise the temperature of the pure water in the dyeing vat to 35 degrees, add 5.0-7.0 grams of low resistance agent per liter of pure water, continue to raise the temperature to 40 degrees, keep it warm for 20-30 minutes, and stir constantly during the warming process and drain the water. (5) Shaping: The shaping machine has 7 sections, is heated by natural gas combustion, the shaping temperature is 180℃, the main machine speed is 30-40 meters per minute, the upper overrun is 0-3 meters per minute, the lower overrun is 0-2 meters per minute, the fabric output overrun is 0.8 meters per minute, the tension is 40-45 Newtons, the width of the greige fabric after shaping is 170-175 cm, the weight is 80-90 grams per square meter, the thickness is 0.40-0.50 mm, the water absorption time is less than 40 seconds, the water absorption is greater than 300 ml per square meter, and the single layer impedance value is 10 to the power of 12 ohms; (6) Composite: Depending on the specific requirements, the polyester white fabric treated in step (5) is composited in three or four layers. (7) Cutting and packaging: Laser cutting is used in the radial and weft directions according to the requirements, and then the cut composite fabric is packaged to complete the preparation of multi-layer composite low static dust-free cloth.