Environment-friendly regenerated dust-free wiping cloth and preparation method thereof

Abstract

The invention discloses a preparation method of environment-friendly regenerated dust-free wiping cloth. The preparation method comprises the steps of weaving, washing, shaping, cutting, cleaning, drying and the like. Wherein all the procedures are completed in a dust-free clean room meeting the ISO 4-7 standard, the temperature of the dust-free clean room is 22 DEG C + / -2 DEG C, and the humidity of the dust-free clean room is 55% + / -15%; for particles with the particle size larger than or equal to 0.5 micrometer, the environment clean value APC of the dust-free clean room is smaller than or equal to 100 Counts / 2.83 L. By adopting the regenerated polyester-nylon composite filaments, not only is the dependence on non-renewable resources such as petroleum reduced and carbon emission in the production process reduced, but also household garbage such as mineral water bottles is utilized as raw materials, so that cyclic utilization of the resources is realized, and environmental pollution is effectively reduced; meanwhile, the dust-free cloth disclosed by the invention has better wrinkle resistance and durability.

Description

Technical Field

[0001] The invention relates to the technical field of dust-free wiping cloths, and in particular to an environmentally friendly regenerated dust-free wiping cloth and a preparation method thereof. Background Art

[0002] Cleanroom wipes play a vital role in high-tech manufacturing, where they are primarily used to clean sensitive equipment and surfaces to prevent contamination from particles and contaminants. These cloths are widely used in precision industrial fields such as semiconductors, electronics, optical instruments, and medical devices due to their virtually particle-free properties.

[0003] However, the main material of dust-free wipes is synthetic fibers such as polyester or polypropylene. Although these materials have excellent performance, their non-biodegradability brings serious environmental problems. Moreover, the main material for producing dust-free wipes is extracted from petroleum. In other words, the production of these dust-free wipes depends on petroleum, a non-renewable resource. The production and processing process not only consumes a lot of energy, but also may release greenhouse gases and cause water pollution. In addition, most dust-free cloths are designed for disposable use, which leads to the generation of a large amount of solid waste and increases the environmental burden.

[0004] Therefore, although existing dust-free wiping cloths play an important role in high-tech manufacturing, they have poor sustainable development and are prone to aggravate environmental pollution. In addition, in terms of strength and wear resistance, although some existing dust-free wiping cloths, such as polyester knitted dust-free wiping cloths, show good wear resistance and durability and can remove stains such as grease and fingerprints, their prices are relatively high, which limits their application in a wider range of occasions. In addition, some dust-free cloths such as all-wood pulp non-woven wiping cloths perform well in organic solvent resistance and dirt removal ability, but perform poorly in cleanliness and tear resistance, are easily broken and shredded, and are not suitable for use in high-grade clean rooms. In terms of wrinkle resistance, although synthetic fibers such as polyester have good shape retention, natural fibers such as cotton or linen perform poorly in wrinkle resistance and are prone to wrinkles, affecting their application in precision cleaning occasions. Summary of the invention

[0005] The purpose of the present invention is to solve the above-mentioned technical problems and provide an environmentally friendly recycled dust-free wiping cloth and a preparation method thereof, which is more environmentally friendly and has better wrinkle resistance and durability.

[0006] In order to solve the above problems, the present invention is implemented according to the following technical solutions:

[0007] In a first aspect, the present invention provides a method for preparing an environmentally friendly regenerated dust-free wiping cloth, the method comprising the following steps:

[0008] (10) Weaving: using recycled polyester-nylon composite yarn to weave with 40-needle rib stitch to obtain a dust-free cloth semi-finished product;

[0009] (20) Washing: washing the semi-finished dust-free cloth with water;

[0010] (30) shaping: shaping the washed semi-finished dust-free cloth at high temperature, wherein the temperature of the high temperature shaping is 170 to 200° C.;

[0011] (40) Cutting: Cutting the shaped dust-free cloth semi-finished product by laser cutting technology or ultrasonic cutting technology;

[0012] (50) Cleaning: Use EDI ultrapure water to clean the cut dust-free cloth semi-finished product;

[0013] (60) Drying: Drying the cleaned dust-free cloth semi-finished product to obtain an environmentally friendly recycled dust-free wiping cloth;

[0014] Among them, all the above processes are completed in a dust-free clean room that meets ISO 4-7 standards. The temperature of the dust-free clean room is 22℃±2℃, and the humidity of the dust-free clean room is 55%±15%; for particles with a particle size ≥0.5 microns, the environmental cleanliness value of the dust-free clean room is APC≤100Counts / 2.83L.

[0015] Preferably, the specific process of step (20) water washing includes the following steps in sequence: (21) immersing the dust-free cloth semi-finished product in a water washing solution with a temperature of 115° C., keeping it for half an hour and then taking it out; (22) using reverse osmosis pure water to rinse the dust-free cloth semi-finished product, and after rinsing for 10 minutes, completely draining the water on the dust-free cloth semi-finished product; (23) immersing the dust-free cloth semi-finished product with the water completely drained into acetic acid, keeping it for 6 minutes and then taking it out; (24) placing the dust-free cloth semi-finished product taken out from acetic acid into reverse osmosis pure water with detergent, and after gradually increasing the water temperature to 120° C., cleaning the dust-free cloth semi-finished product for half an hour; (25) using reverse osmosis water to clean the cleaned dust-free cloth semi-finished product.

[0016] Preferably, the washing solution in step (21) is a mixed solution of a penetrant, sodium hydroxide and tetrasodium EDTA.

[0017] Preferably, in the cleaning step (50), the resistivity of EDI ultrapure water is 17.6 MΩ±0.6 MΩ, LPC is <20 counts / mL, IC is <0.01 ug / mL, and NVR DIW is <5.0 ug / mL.

[0018] Preferably, in the drying step, the cleaned semi-finished dust-free cloth is dried for 40 minutes.

[0019] Preferably, in the drying step, the temperature at which the cleaned dust-free cloth semi-finished product is dried is 90°C.

[0020] In a second aspect, the present invention provides an environmentally friendly regenerated dust-free wiping cloth, wherein the environmentally friendly regenerated dust-free wiping cloth is prepared by any one of the environmentally friendly regenerated dust-free wiping cloth preparation methods of the first aspect.

[0021] Preferably, the environmentally friendly recycled dust-free wiping cloth is woven from recycled polyester-nylon composite yarn of 75D / 36F specification.

[0022] Preferably, the regenerated polyester-nylon composite yarn comprises 80% regenerated polyester and 20% nylon.

[0023] Preferably, the fabric structure of the environmentally friendly recycled dust-free wiping cloth is a ribbed structure.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] The present invention provides an environmentally friendly regenerated dust-free wiping cloth and a preparation method thereof, which has significant environmental advantages and performance improvement compared to traditional dust-free wiping cloths. By adopting recycled polyester-nylon composite yarn, not only the dependence on non-renewable resources such as petroleum is reduced, and carbon emissions in the production process are reduced, but also domestic garbage such as mineral water bottles are used as raw materials to achieve resource recycling and effectively reduce environmental pollution. In terms of performance, the dust-free cloth of the present invention is woven by 40-needle rib stitches, which enhances the strength and wear resistance of the fabric, making the product more durable. At the same time, the rib structure also promotes air circulation and maintains dryness. High-temperature shaping treatment further improves the wrinkle resistance of the dust-free cloth, so that it provides a better use experience while maintaining a neat and smooth appearance. In addition, the entire production process is completed in a strictly controlled ISO 4-7 dust-free clean room, ensuring the high cleanliness level and extremely low particulate emission of the product, meeting the strict requirements of high-end cleaning solutions. EDI ultrapure water cleaning and precise drying processes further improve the cleanliness and anti-static performance of the product, making it more widely used in high-tech manufacturing industries.

[0026] In summary, the present invention not only achieves breakthroughs in environmental protection and sustainability, but also demonstrates obvious advantages in improving product performance and meeting specific application requirements, providing users with an environmentally friendly and efficient cleaning solution. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The specific embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings, wherein:

[0028] Figure 1 It is a structural schematic diagram of an environmentally friendly regenerated dust-free wiping cloth of the present invention. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0030] The terms used in this application are only for the purpose of describing specific embodiments and are not intended to limit this application. Unless otherwise defined, the technical terms or scientific terms used in this specification should be understood by people with ordinary skills in the field to which this application belongs. The words "first", "second" and similar words used in this specification and claims do not indicate any order, quantity or importance, but are only used to distinguish different technical features.

[0031] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0032] like Figure 1 As shown, the method for preparing an environmentally friendly regenerated dust-free wiping cloth according to the present invention comprises the following steps:

[0033] (10) Weaving: Using recycled polyester-nylon composite yarn to weave with 40-needle rib stitch to obtain a dust-free cloth semi-finished product;

[0034] (20) Washing: washing the semi-finished dust-free cloth with water;

[0035] (30) shaping: shaping the washed semi-finished dust-free cloth at high temperature, wherein the temperature of the high temperature shaping is 170 to 200° C.;

[0036] (40) Cutting: Cutting the shaped dust-free cloth semi-finished product by laser cutting technology or ultrasonic cutting technology;

[0037] (50) Cleaning: Use EDI ultrapure water to clean the cut dust-free cloth semi-finished product;

[0038] (60) Drying: Drying the cleaned dust-free cloth semi-finished product to obtain an environmentally friendly recycled dust-free wiping cloth;

[0039] Among them, all the above processes are completed in a clean room that meets ISO 4-7 standards. The temperature of the clean room is 22℃±2℃, and the humidity of the clean room is 55%±15%. For particles with a particle size of ≥0.5 microns, the environmental cleanliness value of the clean room is APC≤100Counts / 2.83L. This can prevent the raw dust-free wipes from being contaminated during the production process.

[0040] It should be noted that in the weaving step, the use of 40-needle rib stitch can significantly improve the overall strength of the dust-free wipes, making them more wear-resistant and durable. This method not only enhances the tensile strength of the textile, but is also very suitable for applications that require greater force. At the same time, the rib structure also promotes air circulation inside the dust-free wipes, helping to keep them dry, especially during exercise or use.

[0041] Preferably, the specific process of step (20) water washing includes the following steps in sequence: (21) immersing the dust-free cloth semi-finished product in a water washing solution with a temperature of 115° C., keeping it for half an hour and then taking it out; (22) using reverse osmosis pure water to rinse the dust-free cloth semi-finished product, and after rinsing for 10 minutes, completely draining the water on the dust-free cloth semi-finished product; (23) immersing the dust-free cloth semi-finished product with the water completely drained into acetic acid, keeping it for 6 minutes and then taking it out; (24) placing the dust-free cloth semi-finished product taken out from acetic acid into reverse osmosis pure water with detergent, and after gradually increasing the water temperature to 120° C., cleaning the dust-free cloth semi-finished product for half an hour; (25) using reverse osmosis water to clean the cleaned dust-free cloth semi-finished product.

[0042] In a preferred embodiment, the washing solution in step (21) is a mixed solution of a penetrant, sodium hydroxide and tetrasodium EDTA.

[0043] In a preferred embodiment, the shaped dust-free cloth semi-finished product is cut by laser cutting technology or ultrasonic cutting technology, and then the dust-free cloth semi-finished product is formed into various required shapes by laser welding process. The laser welding process can create a silky smooth edge when fusing fibers, thereby eliminating the risk of particles caused by fiber breakage. This process not only makes the edge of the dust-free wiper cloth visually beautiful, but also significantly reduces the environmental impact and achieves impeccable dustproof sealing performance.

[0044] Preferably, in the cleaning step (50), the resistivity of the EDI ultrapure water is 17.6MΩ±0.6MΩ, LPC<20counts / mL, IC<0.01ug / mL and NVR DIW<5.0ug / mL. Cleaning the dust-free cloth semi-finished product with this EDI ultrapure water can effectively remove impurities, oligomers and other residues on the cloth surface, significantly improving the cleanliness level of the dust-free cloth semi-finished product. Preferably, after cleaning, the dust-free cloth semi-finished product is precisely dehydrated for subsequent use.

[0045] Preferably, in the drying step, the cleaned semi-finished dust-free cloth is dried for 40 minutes.

[0046] In one embodiment, after drying the cleaned dust-free cloth semi-finished product for 40 minutes, the drying equipment will perform a steady cooling process for 20 minutes, which can gradually reduce the temperature of the cloth to prevent shrinkage caused by rapid cooling.

[0047] Preferably, in the drying step, the temperature for drying the cleaned dust-free cloth semi-finished product is 90° C. This can ensure that the moisture inside the cloth is fully evaporated without damaging its physical properties.

[0048] The present invention also provides an environmentally friendly regenerated dust-free wiping cloth, which is prepared by any one of the environmentally friendly regenerated dust-free wiping cloth preparation methods described in the present invention.

[0049] Preferably, the environmentally friendly recycled dust-free wiping cloth is woven from recycled polyester-nylon composite yarn of 75D / 36F specification.

[0050] It should be noted that the use of 75D / 36F specifications of recycled polyester-nylon composite yarn to weave dust-free wipes can make full use of the excellent properties of recycled polyester and nylon, thus giving dust-free cloths a series of significant advantages. First, the 75D specification means that the silk thread has a moderate thickness, which makes the woven dust-free cloth have a good feel and softness, and can provide sufficient strength and wear resistance to meet various wiping needs. Even when facing a rough or stained surface, it can effectively clean without being easily damaged. Secondly, 36F means that the silk thread is composed of 36 monofilaments. This multi-filament structure helps to improve the water absorption and oil absorption of the dust-free cloth, so that it can quickly absorb liquid stains and lock particulate pollutants, reduce the shedding and diffusion of particles during wiping, and thus improve cleaning efficiency and cleanliness. At the same time, the use of recycled polyester not only reduces dependence on petroleum resources, reduces production costs and environmental impact, but also has excellent chemical corrosion resistance and anti-aging properties, so that the dust-free cloth can maintain stable performance in a variety of chemical solvents and different environmental conditions, and prolongs its service life. The addition of nylon further enhances the elasticity and toughness of the dust-free cloth, making it less likely to deform during the wiping process, maintaining a good wiping effect and appearance. In addition, the weaving process of this composite yarn can also adjust the density and structure of the fabric as needed to meet the specific requirements of the dust-free cloth performance in different application scenarios. For example, in situations where higher cleanliness is required, the density of the fabric can be increased to reduce the fiber gap and reduce the release of particles. In summary, the use of 75D / 36F recycled polyester-nylon composite yarn to weave dust-free wiping cloth not only achieves environmental protection and sustainability, but also achieves a comprehensive effect of high efficiency, durability and strong applicability in terms of performance.

[0051] Preferably, the regenerated polyester-nylon composite yarn comprises 80% regenerated polyester and 20% nylon.

[0052] Preferably, the fabric structure of the environmentally friendly recycled dust-free wiping cloth is a ribbed structure. The environmentally friendly recycled dust-free wiping cloth with a ribbed structure can promote air circulation inside the dust-free wiping cloth, helping to keep it dry.

[0053] In a specific embodiment, the implementation scheme is as follows:

[0054] Base material: The environmentally friendly regenerated dust-free wiping cloth is woven with the preferred 75D / 36F specification of recycled polyester-nylon composite yarn, which is composed of 80% recycled polyester and 20% nylon. This recycled polyester-nylon composite yarn is derived from domestic waste, such as mineral water bottles, etc., which can effectively reduce the demand for raw materials, and at the same time, the use of renewable resources significantly reduces carbon emissions in the production process. Regenerated polyester-nylon composite yarn has excellent performance in strength and wear resistance, and is very suitable for daily cleaning. In addition, the treated recycled polyester-nylon composite yarn fabric usually has excellent wrinkle resistance and can maintain a neat and smooth appearance;

[0055] Weaving process / structure: 40-needle rib stitch is used for weaving. This stitch can significantly improve the overall strength of the dust-free wipes, making them more wear-resistant and durable, while also enhancing their tensile resistance. The tissue structure of the dust-free wipes woven by this stitch is a ribbed structure, which can promote air circulation inside the dust-free wipes and help keep them dry.

[0056] After weaving, a dust-free cloth semi-finished product is obtained;

[0057] Production environment: All manufacturing processes are completed in a strictly controlled dust-free clean room area ISO 4-7 (10-10000 grade). The temperature of the dust-free clean room area ISO 4-7 (10-10000 grade) is controlled at 22℃±2℃, the humidity is 55%±15%, and the environmental cleanliness value APC≥0.5μm is required to be controlled within ≤100Counts / 2.83L. The clothing, materials, and environment in the clean room area are strictly controlled in accordance with ISO 14644-1:2015 standards. Therefore, the dust-free wipes produced in such a controlled environment have ultra-high cleanliness and ultra-low dust generation;

[0058] Water washing treatment process: First, prepare a mixed solution containing penetrant, sodium hydroxide and tetrasodium EDTA in a container. After the temperature rises to 115 degrees Celsius, immerse the semi-finished dust-free cloth for more than half an hour. Then, drain the solution and rinse the semi-finished dust-free cloth with reverse osmosis pure water for 10 minutes, and then completely drain the water. Next, pour in acetic acid for neutralization. This process lasts for 6 minutes, and then the water in the container is completely drained. Then, add reverse osmosis pure water and detergent, gradually increase the temperature to 120 degrees Celsius, and perform a half-hour deep cleaning of the dust-free wipes. Finally, the semi-finished dust-free cloth is thoroughly cleaned with reverse osmosis pure water for further processing;

[0059] Forming treatment process: In a strictly monitored ISO 4-7 level (corresponding to 10-10000 level) dust-free clean room, ultra-clean high-temperature forming technology is used to set the temperature between 170 and 200 degrees Celsius to perform high-temperature forming on the semi-finished dust-free cloth;

[0060] Cutting process: Use laser cutting technology or ultrasonic cutting technology to cut the semi-finished dust-free cloth. After cutting, use laser welding technology to shape the semi-finished dust-free cloth into the required shape;

[0061] Cleaning: In a strictly monitored ISO 4-7 level (corresponding to 10-10000 level) dust-free clean room, the semi-finished dust-free cloth is cleaned by a professional isolated cleaning machine equipped with an EDI ultrapure water system at room temperature. The resistivity of this EDI ultrapure water is 17.6MΩ±0.6MΩ, LPC<20counts / mL, IC<0.01ug / mL and NVR DIW<5.0ug / mL. Using this EDI ultrapure water to deep clean the semi-finished dust-free cloth can effectively remove impurities, oligomers and other residues on the cloth surface, significantly improving its cleanliness level. After cleaning, the semi-finished dust-free cloth is precisely dehydrated for subsequent use;

[0062] Drying process: In a strictly controlled ISO 4-7 clean room (in compliance with 10-10000 cleanroom standards), the semi-finished dust-free cloth is dried by a special clean drum dryer. The drying time is 40 minutes and the drying temperature is 90°C. After drying, the clean drum dryer will perform a steady cooling process for 20 minutes, which can gradually reduce the temperature of the cloth to prevent shrinkage caused by rapid cooling. After this step, the semi-finished dust-free cloth with top anti-static performance, super cleanliness and extremely low dust emission will be obtained;

[0063] Packaging / quality inspection: In a strictly controlled clean room area ISO 4-7 (10-10000), the semi-finished dust-free cloth is fully inspected for appearance quality and physical specifications. In a strictly controlled clean area laboratory certified by ISO / IEC 17025:2017, the cleanliness (APC) test and analysis are carried out before packaging. The result is an environmentally friendly recycled dust-free wiping cloth with guaranteed quality and performance.

[0064] The environmentally friendly regenerated dust-free wiping cloth of the present invention has the following advantages:

[0065]

[0066] The environmentally friendly regenerated dust-free wiping cloth obtained by the above scheme has significant environmental advantages and performance improvements compared to traditional dust-free wiping cloths. By adopting recycled polyester-nylon composite yarn, not only the dependence on non-renewable resources such as petroleum is reduced, and carbon emissions in the production process are reduced, but also domestic waste such as mineral water bottles are used as raw materials to achieve resource recycling and effectively reduce environmental pollution. In terms of performance, the dust-free cloth of the present invention is woven by 40-needle rib stitches, which enhances the strength and wear resistance of the fabric, making the product more durable. At the same time, the rib structure also promotes air circulation and maintains dryness. High-temperature shaping treatment further improves the wrinkle resistance of the dust-free cloth, so that it provides a better user experience while maintaining a neat and smooth appearance. In addition, the entire production process is completed in a strictly controlled ISO 4-7 dust-free clean room, ensuring the high cleanliness level and extremely low particulate emission of the product, meeting the strict requirements of high-end cleaning solutions. EDI ultrapure water cleaning and precise drying process further improve the cleanliness and anti-static performance of the product, making it more widely used in high-tech manufacturing.

[0067] In summary, the present invention not only achieves breakthroughs in environmental protection and sustainability, but also demonstrates obvious advantages in improving product performance and meeting specific application requirements, providing users with an environmentally friendly and efficient cleaning solution.

[0068] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Therefore, any modification, equivalent change and modification made to the above embodiment according to the technical essence of the present invention without departing from the technical solution of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. A method for preparing an environmentally friendly regenerated dust-free wiping cloth, characterized in that: The method comprises the following steps: (10) Weaving: Using recycled polyester-nylon composite yarn to weave with 40-needle rib stitch to obtain a dust-free cloth semi-finished product; (20) Washing: washing the semi-finished dust-free cloth with water; (30) shaping: shaping the washed semi-finished dust-free cloth at high temperature, wherein the temperature of the high temperature shaping is 170 to 200° C.; (40) Cutting: Cutting the shaped dust-free cloth semi-finished product by laser cutting technology or ultrasonic cutting technology; (50) Cleaning: Use EDI ultrapure water to clean the cut dust-free cloth semi-finished product; (60) Drying: Drying the cleaned dust-free cloth semi-finished product to obtain an environmentally friendly recycled dust-free wiping cloth; Among them, all the above processes are completed in a dust-free clean room that meets ISO 4-7 standards. The temperature of the dust-free clean room is 22℃±2℃, and the humidity of the dust-free clean room is 55%±15%; for particles with a particle size ≥0.5 microns, the environmental cleanliness value of the dust-free clean room is APC≤100Counts / 2.83L.

2. The method for preparing an environmentally friendly regenerated dust-free wiping cloth according to claim 1, characterized in that: The specific process of step (20) water washing comprises the following steps in sequence: (21) Immerse the semi-finished dust-free cloth in a washing solution at a temperature of 115° C. and take it out after half an hour; (22) Rinse the semi-finished dust-free cloth with reverse osmosis pure water, and completely drain the water on the semi-finished dust-free cloth after rinsing for 10 minutes; (23) Immerse the completely drained dust-free cloth semi-finished product in acetic acid and take it out after keeping it for 6 minutes; (24) placing the semi-finished dust-free cloth taken out from the acetic acid into reverse osmosis pure water containing a detergent, and gradually raising the water temperature to 120° C., and then cleaning the semi-finished dust-free cloth for half an hour; (25) The cleaned dust-free cloth semi-finished product is cleaned using reverse osmosis water.

3. The method for preparing an environmentally friendly regenerated dust-free wiping cloth according to claim 2, characterized in that: The washing solution in step (21) is a mixed solution of a penetrant, sodium hydroxide and tetrasodium EDTA.

4. The method for preparing an environmentally friendly regenerated dust-free wiping cloth according to claim 1, characterized in that: In the (50) cleaning step, the resistivity of EDI ultrapure water is 17.6 MΩ±0.6 MΩ, LPC<20 counts / mL, IC<0.01 ug / mL and NVR DIW<5.0 ug / mL.

5. The method for preparing an environmentally friendly regenerated dust-free wiping cloth according to claim 1, characterized in that: In the drying step, the cleaned semi-finished dust-free cloth is dried for 40 minutes.

6. The method for preparing an environmentally friendly regenerated dust-free wiping cloth according to claim 5, characterized in that: In the drying step, the temperature for drying the cleaned semi-finished dust-free cloth is 90°C.

7. An environmentally friendly recycled dust-free wiping cloth, characterized in that: The environmentally friendly regenerated dust-free wiping cloth is prepared by any one of the environmentally friendly regenerated dust-free wiping cloth preparation methods of claims 1-6.

8. The environmentally friendly regenerated dust-free wiping cloth according to claim 7, characterized in that: Environmentally friendly recycled dust-free wiping cloth is woven from 75D / 36F recycled polyester-nylon composite yarn.

9. The environmentally friendly regenerated dust-free wiping cloth according to claim 8, characterized in that: The regenerated polyester-nylon composite yarn comprises 80% of regenerated polyester and 20% of nylon.

10. The environmentally friendly regenerated dust-free wiping cloth according to claim 7, characterized in that: The fabric structure of the environmentally friendly recycled dust-free wipes is a ribbed structure.

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