Tubular anti-static automobile wiping cloth

Abstract

The invention discloses tubular anti-static automobile wiping cloth. The tubular anti-static automobile wiping cloth is prepared through the following steps that firstly, a cloth blank is woven, wherein the cloth blank is obtained through weaving of a 28-needle double-face knitting small cylinder knitting machine; (2) high stability: setting the temperature in a dust-free clean room to be 170-200 DEG C, and performing sealing treatment to form a wiping cloth semi-finished product; (3) cutting: cutting into pieces through an automatic laser cutting process; (4) cleaning: cleaning in a clean environment by using deionized ultrapure water; (5) antistatic treatment: cleaning in a dust-free clean room by using 1kg of wiping cloth matched with 10L of normal-temperature EDI ultrapure water; (6) drying: drying in a roller dryer; and (7) packaging and quality inspection: detecting the size and performance of the wiping cloth in a dust-free clean room, and then packaging. The high-performance and high-quality polyester filament yarn is adopted, a strict dust-free clean production environment is adopted, an EDI ultrapure water cleaning process is adopted, and antistatic treatment is adopted, so that the high performance and high quality of the product are achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of wiping cloth production, and in particular relates to a tubular antistatic automobile wiping cloth. Background Art

[0002] Antistatic tubular automotive wipes are mainly used in dust-free cleanrooms in the electronics industry, semiconductor industry, dust-free environments in automobile manufacturing, and laboratories and other areas with extremely high cleanliness requirements to protect personnel and equipment. At present, operators in cleanrooms often use square antistatic wipes made of ordinary polyester staple fibers and conductive yarns on the market, or common civilian rags. However, these ordinary wipes are expensive, and the production environment is not strictly controlled. The standards for producing ordinary rags are the same or even worse, and the practicality for equipment protection is poor, resulting in their cleanliness failing to meet the high standards of cleanrooms. In addition, the surface of dust-free cloths made of staple fibers is prone to fluff, the amount of dust released is large, and the cleanliness and physical strength are insufficient, which cannot meet the strict use regulations of dust-free cleanrooms.

[0003] At present, cleanroom operators often use sheet-shaped wipes, which are mainly anti-static materials woven from commercially available polyester staple fibers combined with conductive yarns. The price of these products is much higher than that of ordinary wipes, but the quality does not meet the strict standards of clean environments. Wipes made of ordinary polyester staple fibers with conductive yarns are prone to produce fluff, release a large amount of particles, have low cleanliness, and have poor durability and tensile wear resistance. The cost of conductive yarns is about 2 to 3 times that of ordinary polyester fibers, which pushes up the total cost, so the selling price is higher. Companies tend to reuse, and frequent cleaning will cause the staple fiber material to wear and shed, increasing the possibility of pollution in the dust-free environment. In addition, recycling and cleaning also require additional management and cleaning costs, and the cleaning effect is difficult to guarantee. The factory-made wipes have a high dust rate and insufficient cleanliness, and are only suitable for general use.

[0004] Therefore, there is a need for an antistatic wiping cloth with excellent performance, low cost and environmental protection. Summary of the invention

[0005] The purpose of the invention is to solve the technical problem of poor performance and high cost of wiping cloth, and to provide a tubular antistatic automobile wiping cloth.

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

[0007] The tubular antistatic automobile wiping cloth of the present invention is prepared by the following method:

[0008] (1) Weaving the cloth: Weaving the cloth by a 28-needle double-sided knitting small cylindrical knitting machine;

[0009] (ii) High stability type: The temperature is set at 170℃~200℃ in a dust-free clean room, and the semi-finished wiping cloth is formed after sealing treatment;

[0010] (iii) Cutting: Cutting into pieces by automatic laser cutting process;

[0011] (iv) Cleaning: Use deionized ultrapure water for cleaning in a clean environment;

[0012] (V) Antistatic treatment: Clean with 1kg of wiping cloth and 10L of normal temperature EDI ultrapure water in a dust-free clean room;

[0013] (vi) Drying: Drying in a drum dryer;

[0014] (VII) Packaging quality inspection: The size and performance of the wipes are tested in a dust-free clean room before packaging.

[0015] Preferably, in step (i) of weaving the cloth blank, a double-sided knitting small cylindrical knitting machine uses 100D / 144F polyester filaments to weave the cloth blank, the cloth blank has a rib structure, and the cloth blank is in a hollow tubular shape.

[0016] Preferably, in step (i) of weaving the cloth, polyester filaments are intertwined on a double-sided knitting small cylindrical knitting machine, and after the knitting needles are arranged on the upper needle plate and the lower needle cylinder on the double-sided knitting small cylindrical knitting machine, the polyester filaments are introduced to start weaving.

[0017] Preferably, the manufacturing processes of step (1) to step (7) are all carried out in a dust-free clean room, and the dust-free clean room maintains a constant temperature of 22°C ± 2°C and a relative humidity of 55% ± 15%; according to the requirements of the environmental cleanliness value APC, for particles with a diameter greater than or equal to 0.5μm, the controlled number must be less than 100Counts / 2.83L.

[0018] Preferably, in step (iv), EDI ultrapure water is added to the isolated cleaning machine, and after the water volume is sufficient, a nonionic antistatic agent is added, the ratio of the nonionic antistatic agent to the EDI ultrapure water is 3:100, the ratio of the EDI ultrapure water to the cloth is 10:1, and when the liquid temperature of the EDI ultrapure water reaches 25°C, the resistivity is 17.6MΩ±0.6MΩ, the LPC index is less than 20counts / mL, the IC is less than 0.01ug / mL, and the NVR DIW is less than 5.0ug / mL. The drum rotates forward and reverse alternately for 10 seconds per minute, and then stands and soaks to achieve anti-static treatment. The cycle continues for 10 minutes before dehydration.

[0019] Preferably, in step (six), a 40-minute constant temperature drying period of 90° C. is set in the drum dryer, and after the drying is completed, a 20-minute steady cooling process is performed.

[0020] Preferably, in step (seven), the detection includes detecting surface resistance, measuring static voltage, analyzing friction voltage and checking cleanliness.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The tubular antistatic automobile wiping cloth described in the present invention is prepared by the following method: (i) weaving cloth blanks: weaving cloth blanks through a 28-needle double-sided knitting small cylindrical knitting machine; (ii) high stability: setting the temperature at 170°C to 200°C in a dust-free clean room, and forming a semi-finished wiping cloth after sealing treatment; (iii) cutting: cutting into pieces through an automatic laser cutting process; (iv) cleaning: using deionized ultrapure water for cleaning in a clean environment; (v) antistatic treatment: cleaning 1 kg of wiping cloth with 10 L of normal temperature EDI ultrapure water in a dust-free clean room; (vi) drying: drying in a drum dryer; (vii) packaging quality inspection: packaging the wiping cloth after testing its size and performance in a dust-free clean room.

[0023] The polyester material selected in the present invention has good softness and will not damage the paint surface of the car. The tubular design is easy to grip and is suitable for cleaning various automotive parts. By using EDI ultrapure water for antistatic treatment in a clean environment, the surface charge of the wiping cloth is effectively reduced to prevent static electricity. For electronic equipment inside the car, such as the center console, instrument panel, etc., the wiping cloth can be safely cleaned to avoid static interference. The cloth blank woven by the double-sided knitted small cylindrical knitting machine has a fine fiber structure and good water absorption and decontamination ability. The laser cutting process is adopted, and the cutting size is accurate and the edges are neat. The size and performance are tested in a dust-free clean room to ensure that the product quality is stable and reliable. Deionized ultrapure water is used for cleaning, and repeated cleaning does not affect the wiping performance. Production is carried out in a dust-free clean room to ensure that there are no impurities on the surface of the wiping cloth, and the cleaning effect is better. After high-temperature sealing treatment, the structure of the wiping cloth is more stable, not easy to deform or break, and has a longer service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The specific embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings, wherein:

[0025] Figure 1 It is a schematic diagram of a tubular antistatic automobile wiping cloth of the present invention;

[0026] Figure 2 This is a flow chart of a method for preparing a tubular antistatic automobile wiping cloth according to the present invention;

[0027] Figure 3 It is a comparison chart of a tubular antistatic automobile wiping cloth of the present invention. DETAILED DESCRIPTION

[0028] 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.

[0029] This embodiment uses a tubular antistatic car wiping cloth for illustration. It should be understood that the present invention should not be limited to this method, and other similar methods / structures are within the protection scope of the present invention.

[0030] like Figure 1-Figure 3 As shown, a tubular antistatic automobile wiping cloth of the present invention is prepared by the following method:

[0031] (1) Weaving the cloth: Weaving the cloth by a 28-needle double-sided knitting small cylindrical knitting machine;

[0032] (ii) High stability type: The temperature is set at 170℃~200℃ in a dust-free clean room, and the semi-finished wiping cloth is formed after sealing treatment;

[0033] (iii) Cutting: Cutting into pieces by automatic laser cutting process;

[0034] (iv) Cleaning: Use deionized ultrapure water for cleaning in a clean environment;

[0035] (V) Antistatic treatment: Clean with 1kg of wiping cloth and 10L of normal temperature EDI ultrapure water in a dust-free clean room;

[0036] (vi) Drying: Drying in a drum dryer;

[0037] (VII) Packaging quality inspection: The size and performance of the wipes are tested in a dust-free clean room before packaging.

[0038] In the knitting step of the present invention, 28-needle knitting refers to the number of arrangement of knitting machine needles. The more needles there are, the wider the width of the fabric will be. A 28-needle knitting machine is usually used to produce some relatively narrow fabrics, such as cuffs, collars, hats, etc. The fabric blank obtained by weaving a 28-needle small cylinder knitting machine is continuously produced in a seamless circular form, eliminating the need for edge stitching, reducing material loss and simplifying post-processing.

[0039] The high temperature shaping step in the present invention is carried out in a strictly monitored ISO 4-7 level (corresponding to 10-10000 level) dust-free clean room, using ultra-clean high temperature shaping technology, and setting the temperature between 170 and 200 degrees Celsius. 10 meters of high temperature shaping can be achieved per minute, and then the cloth is sealed and packaged to become a high-quality semi-finished wiping cloth.

[0040] The laser cutting step in the present invention adopts automatic laser cutting technology to ensure that each component can be accurately cut into a preset shape. The laser melting process can make the edge of the cloth cut smooth and burr-free.

[0041] The EDI ultrapure water cleaning step of the present invention is carried out in an ISO 4-7 level (corresponding to 10-10000 level) dust-free clean room using an isolated cleaning machine equipped with an EDI ultrapure water system at room temperature. When the liquid temperature of the EDI ultrapure water reaches 25°C, the resistivity reaches 17.6MΩ±0.6MΩ, the LPC index is less than 20counts / mL, the IC is less than 0.01ug / mL, and the NVR DIW is less than 5.0ug / mL. With the help of this high-purity, low-ion content water source, the wiping cloth is deeply cleaned to effectively remove impurities, oligomers and other residues on the cloth surface, significantly improving its cleanliness level. After cleaning, it is dehydrated for subsequent use.

[0042] The antistatic treatment and drying treatment steps of the present invention are carried out in an ISO 4-7 clean room (conforming to the 10-10000 clean room standard), and the antistatic treated and dehydrated wiping cloth is subjected to a precise drying process.

[0043] In the packaging quality inspection step of the present invention, the quality of the antistatic automobile tubular wiping cloth that has been formed is comprehensively checked in a dust-free clean room.

[0044] 1. Check the appearance quality of the product and eliminate any possible defects or deficiencies.

[0045] 2. Verify that the size, weight and other technical parameters are consistent with the preset ones.

[0046] Preferably, in step (i) of weaving the cloth blank, a double-sided knitting small cylindrical knitting machine uses 100D / 144F polyester filaments to weave the cloth blank, the cloth blank has a rib structure, and the cloth blank is in a hollow tubular shape.

[0047] The present invention uses 100D / 144F polyester filament as the base material, and its specifications represent 100D and 144 holes;

[0048] 100D, the number in front of it represents the nominal fineness of the silk, formally known as linear density; and the number F behind it indicates the number of holes; fineness is a physical quantity that characterizes the thickness of the fiber, and is defined as: the weight of a certain length of fiber in grams at the official moisture regain. The legal unit is tex, and the English abbreviation is tex. 1TEX is defined as: the weight of 1000 meters of fiber in grams at the official moisture regain. In addition to TEX, there are two other commonly used units, denier and decitex. In comparison, the legal unit of tex is not commonly used.

[0049] 1D = the weight of 9000m long fiber at the official moisture regain.

[0050] 1 dtex = the weight of 10,000 m of fiber at the specified moisture regain.

[0051] Generally speaking, if it is not specified, D or decitex is used. The general trick is that the integer is D, and the decimal is decitex. In fact, the fineness range of polyester low-elastic yarn is not wide.

[0052] Hole number: Multifilament is a twisted or untwisted yarn bundle formed by combining filaments spun from a multi-hole spinneret. Polyester low-elastic yarn is a type of multifilament. The number of thinner single filaments in a bundle of multifilament is indicated by the hole number.

[0053] Therefore, the polyester of 100D / 144F means that each bundle of yarn is 9000m long and weighs 100 grams, which represents the thickness of the yarn from the side; 144F is the number of holes, representing the 144 sub-fibers contained in each bundle of yarn;

[0054] Polyester filament also has the following advantages:

[0055] Strong wear resistance: As filament fibers, their molecular chains are tightly arranged, with high strength and wear resistance. The fabrics made from them are not easy to break and have a long service life.

[0056] Good elasticity: Polyester fiber has good elasticity and is not easy to deform. It can still maintain its original shape after repeated friction. It is suitable for making wiping cloths that require frequent friction.

[0057] Acid and alkali resistance: Polyester fiber has strong resistance to acids and alkalis, is not easily corroded, and is suitable for use in various chemical environments.

[0058] Good light resistance Polyester fiber has good light stability, is not easy to fade, and can still maintain bright colors after long-term use.

[0059] Good thermal stability: Polyester fiber has a high melting point, is resistant to high temperatures, is not easy to deform, and is suitable for high-temperature shaping treatment.

[0060] Low shrinkage: Polyester fiber has good dimensional stability and is not easy to shrink or deform after washing, thus maintaining the dimensional stability of the fabric.

[0061] High color fastness: Polyester fiber is easy to dye, and has high color fastness, bright and long-lasting colors.

[0062] High cost performance: Polyester filament is a common chemical fiber material with relatively low price and high cost performance.

[0063] Good spinnability: Polyester filament has good spinnability and can be easily spun into various yarns to meet different fabric requirements.

[0064] Polyester fiber itself has good antibacterial and anti-mildew properties, is not easy to breed bacteria, and keeps the fabric hygienic.

[0065] The surface of polyester fiber is smooth, stain-resistant, easy to clean, and dries quickly.

[0066] Furthermore, for antistatic car wipes, the wear resistance, chemical resistance, dimensional stability and easy cleaning properties of polyester filaments are very important. Through special antistatic treatment, polyester fabrics can be given excellent antistatic properties, making them ideal car wipe materials.

[0067] On the 28-needle small circular knitting machine, tubular fabrics with good elasticity and stretchability can be knitted.

[0068] Furthermore,

[0069] Rib weave structure: In the present invention, the polyester filament is knitted by a small circular knitting machine, and the knitted rib weave structure is formed by alternating one plain stitch and one purl stitch. This structure makes the fabric have good elasticity and stretchability.

[0070] Types of rib tissue: Rib tissue can be divided into 1*1 rib, 2*2, 3*2 and 4*2 rib according to the ratio of the number of needles. 1*1 rib is the most common rib tissue with the best elasticity.

[0071] The tubular fabric knitted by the small circular knitting machine is an ideal choice for making anti-static car wipes. Through the reasonable selection of factors such as the number of needles, needle length, yarn, etc., a fabric with good elasticity, comfortable feel, and easy cleaning can be obtained, which meets the performance requirements of anti-static car wipes.

[0072] Furthermore, the tubular fabric reduces the number of seams and reduces sewing costs. The tubular fabric has a high utilization rate and reduces fabric waste.

[0073] Preferably, in step (i) of weaving the cloth, polyester filaments are intertwined on a double-sided knitting small cylindrical knitting machine, and after the knitting needles are arranged on the upper needle plate and the lower needle cylinder on the double-sided knitting small cylindrical knitting machine, the polyester filaments are introduced to start weaving.

[0074] Specifically, the weaving structure of the tubular cloth blank has several weft yarns that are weft-knitted on the front side of the fabric; the weaving structure of the tubular cloth blank also has several weft yarns that form long floating lines on the bottom side of the fabric; the front and back sides of the weaving structure of the tubular cloth blank form a ring-shaped structure of the cloth blank.

[0075] It can be understood that polyester filaments are fed into the knitting machine and wound around the knitting needles according to the set path. The knitting needles move up and down according to the program, bending the yarn into loops and interweaving these loops to form fabrics. The knitting machine can produce fabrics with good appearance and performance, with a high degree of automation and high production efficiency.

[0076] The weaving structure of the tubular fabric refers to the interweaving of the warp and weft yarns of the fabric. The weft yarns are knitted on the front of the fabric to form the warp and weft structure of the fabric. Some of the weft yarns form long floats on the bottom of the fabric to increase the thickness and elasticity of the fabric. Due to the circular arrangement of the knitting needles, the fabric forms a continuous ring-like structure.

[0077] Obverse: It shows clear warp and weft structures, and can have various patterns.

[0078] Bottom surface: Due to the presence of long floating lines, the bottom surface is usually flat and soft to the touch.

[0079] Cross section: round or oval, conforming to the shape of tubular cloth.

[0080] The warp and weft yarns are arranged alternately to form a rib structure with good elasticity.

[0081] Preferably, the manufacturing processes of step (1) to step (7) are all carried out in a dust-free clean room, and the dust-free clean room maintains a constant temperature of 22°C ± 2°C and a relative humidity of 55% ± 15%; according to the requirements of the environmental cleanliness value APC, for particles with a diameter greater than or equal to 0.5μm, the controlled number must be less than 100Counts / 2.83L.

[0082] It is understandable that according to the requirements of the environmental cleanliness value APC, the production workshop of the wiping cloth should reach a cleanliness level of 10,000 or above (that is, the number of particles with a diameter of ≥ 0.5 μm per cubic meter of air is ≤ 100,000).

[0083] Preferably, constant temperature system: install a precision constant temperature system to control the workshop temperature at 22℃±2℃ to ensure the stability of the production environment.

[0084] Dehumidification system: Dehumidification equipment is installed to control the relative humidity of the workshop at 55%±15% to prevent humidity fluctuations from affecting product quality.

[0085] Grounding system: All equipment and personnel should be grounded to prevent the generation and accumulation of static electricity.

[0086] Anti-static materials: Use anti-static floors, workbenches, clothing, etc. to reduce static electricity contamination of products.

[0087] By establishing a dust-free clean room and strictly controlling each link in the production process, the cleanliness and quality of the wipes can be effectively guaranteed. This high-standard production environment can not only meet the stringent requirements of high-tech industries such as electronics and optics, but also extend the service life of the product.

[0088] Preferably, in step (iv), EDI ultrapure water is added to the isolated cleaning machine, and after the water volume is sufficient, a nonionic antistatic agent is added, the ratio of the nonionic antistatic agent to the EDI ultrapure water is 3:100, the ratio of the EDI ultrapure water to the cloth is 10:1, and when the liquid temperature of the EDI ultrapure water reaches 25°C, the resistivity is 17.6MΩ±0.6MΩ, the LPC index is less than 20counts / mL, the IC is less than 0.01ug / mL, and the NVR DIW is less than 5.0ug / mL. The drum rotates forward and reverse alternately for 10 seconds per minute, and then stands and soaks to achieve anti-static treatment. The cycle continues for 10 minutes before dehydration.

[0089] 1. Preparation

[0090] Washing machine preparation: Make sure the isolation washing machine is clean and in good working condition. Check whether the water pump, pipes and other components are intact.

[0091] Water source preparation: Inject EDI ultrapure water into the cleaning machine until the water volume reaches the preset value. EDI ultrapure water should meet the following indicators:

[0092] Liquid temperature 25℃

[0093] Resistivity: ≥17.6MΩ·cm

[0094] Particle count (LPC): ≤20 counts / mL

[0095] Ion content (IC): ≤0.01ug / mL

[0096] Total organic carbon (TOC): ≤5.0ug / mL

[0097] 2. Add antistatic agent

[0098] Ratio: Add non-ionic antistatic agent to EDI ultrapure water at a ratio of 3:100. For example, if 100L of EDI ultrapure water is added, 3L of antistatic agent needs to be added. The ratio of EDI ultrapure water to cloth blank is 10:1. For example, 1kg of cloth blank needs to be mixed with 10L of EDI ultrapure water.

[0099] Stir evenly: Use a water pump or stirring device to fully mix the antistatic agent and ultrapure water to ensure uniform solution concentration.

[0100] 3. Cleaning process

[0101] Soak: Place the wipes to be cleaned into the cleaning solution, making sure they are completely submerged.

[0102] Drum cleaning: Start the cleaning machine and make the drum run at a speed of alternating forward and reverse rotation for 10 seconds per minute. The stains and static electricity on the surface of the wiping cloth are removed through mechanical action and the chemical action of the cleaning fluid.

[0103] Soaking: After cleaning the drum, let the cloth soak in the cleaning solution for 10 minutes to fully exert the effect of the antistatic agent.

[0104] Circular cleaning: To ensure the cleaning effect, the above soaking and drum cleaning steps can be repeated 2-3 times.

[0105] 4. Dehydration

[0106] Spin dry: Place the cleaned wipes in a centrifugal dehydrator to dehydrate and remove excess cleaning solution.

[0107] Drying: Place the dehydrated wipes in a dryer to make sure they are completely dry.

[0108] 5. Quality Inspection

[0109] Resistivity measurement: Use a resistivity tester to measure the surface resistivity of the cleaned wipe to ensure that it meets the requirements.

[0110] Cleanliness detection: Use a particle counter to detect the number of particles on the surface of the wipe to ensure that it meets the cleanliness standards.

[0111] Preferably, in step (six), a 40-minute constant temperature drying period of 90° C. is set in the drum dryer, and after the drying is completed, a 20-minute steady cooling process is performed.

[0112] In a strictly controlled ISO 4-7 clean room (in compliance with 10-10000 purification standards), the anti-static and dehydrated wipes are subjected to a precise drying process. The processing volume of each batch is strictly controlled within 50 kg to ensure efficient drying while maintaining the highest cleanliness standards. In a clean drum dryer, a 40-minute constant temperature (90°C) drying period is set to ensure that the moisture inside the fabric is fully evaporated without damaging its physical properties. Next, the equipment will carry out a 20-minute steady cooling process to gradually reduce the temperature of the fabric to prevent shrinkage caused by rapid cooling.

[0113] Specifically, nonionic antistatic agents mainly include polyoxyethylene derivatives of nitrogen-containing compounds, sorbitol, ethanolamide and fatty acid polyol esters, etc. They have good thermal stability, are alkali-resistant and not easy to dissociate, and have excellent antistatic properties. After being treated, the fabric can obtain excellent moisture absorption, conductivity, antifouling and dustproof properties.

[0114] In step (seven), the detection includes detecting surface resistance, measuring static voltage, analyzing friction voltage and checking cleanliness.

[0115] Furthermore, to ensure product quality, these wipes will undergo a full set of professional tests in a clean laboratory that is internationally certified to ISO / IEC 17025:2017. Detect surface resistance to evaluate conductivity; measure static voltage to gain insight into charge distribution in a static state; analyze friction voltage to detect static changes that may be caused by wiping; and check cleanliness (air particle count APC) to ensure a high level of cleanliness at the microscopic level. Only when all these performance indicators meet excellent standards are these wipes allowed to enter the subsequent packaging stage.

[0116] Implementation example Figure 3 As shown,

[0117] Project 1: Wipes Cost

[0118] Ordinary sheet anti-static wiping cloth: Traditional disposable anti-static wiping cloth is usually made of non-woven fabric or ordinary cotton cloth, and the cost is relatively low.

[0119] Anti-static tubular car wiping cloth: Made of high-quality polyester filament, it undergoes complex weaving, shaping, cleaning and other processes, so the cost is relatively high.

[0120] Comparison conclusion: The cost of tubular wiping cloth is higher than that of traditional wiping cloth, but due to its excellent material and long service life, it is more cost-effective in the long run.

[0121] Project 2: Yarn Type

[0122] Ordinary sheet antistatic wiping cloth: usually made of short fibers or blended yarns, with good water absorption, but easy to shed and poor wear resistance.

[0123] Anti-static Tubular Car Wiping Cloth: Made of polyester long fiber, it has excellent strength, elasticity, abrasion resistance and chemical resistance, is not easy to shed and has a long service life.

[0124] Project 3: Production Environment

[0125] Ordinary sheet anti-static wiping cloth: generally produced in ordinary environment, with low requirements on environmental cleanliness.

[0126] Anti-static Tubular Car Wipes: Produced in an ISO 4-7 (10-10000) dust-free clean room, strictly controlling particulate matter in the environment to ensure product cleanliness.

[0127] Project 4: Water washing process

[0128] Ordinary sheet-like anti-static wiping cloth: generally not washed.

[0129] Anti-static Tubular Car Wipes: Use EDI ultrapure water to clean multiple times to remove surface impurities and increase surface resistivity.

[0130] Project 5: Surface resistance

[0131] Ordinary sheet anti-static wiping cloth: The surface resistance is relatively high and the static elimination effect is poor.

[0132] Anti-static Tubular Car Wipes: Very low surface resistance, with excellent anti-static properties.

[0133] Project 6: Cleanliness (APC)

[0134] Ordinary sheet-like anti-static wiping cloth: has low cleanliness and is prone to secondary pollution.

[0135] Anti-static tubular car cleaning cloth: extremely clean, can effectively remove dust and stains on the surface of the car without causing secondary pollution.

[0136] Item 7: Dust generation

[0137] Ordinary sheet-like anti-static wiping cloth: generates a large amount of dust and is prone to generate dust during the wiping process.

[0138] Anti-static tubular car cleaning cloth: extremely low dust generation, no secondary pollution to the car surface.

[0139] Project 8: Surface effect of wiping cloth

[0140] Ordinary sheet-like anti-static wiping cloth: The surface has a lot of hair and the wiping effect is poor.

[0141] Anti-static tubular car cleaning cloth: smooth surface, good wiping effect, will not scratch the car paint.

[0142] Item 9: Tensile Strength

[0143] Ordinary sheet-like anti-static wiping cloth: has low tensile strength and is easily damaged.

[0144] Anti-static Tubular Car Wipes: High tensile strength and good durability.

[0145] Item 10: Wear-resistant

[0146] Ordinary sheet-like anti-static wiping cloth: poor wear resistance and short service life.

[0147] Anti-static Tubular Car Wiping Cloth: Excellent wear resistance and long service life.

[0148] By comparison, it can be seen that the antistatic tubular car wiping cloth is superior to the traditional antistatic wiping cloth in terms of material, production process, performance, etc. Its high-quality polyester filament, strict production environment, advanced cleaning process and other characteristics make it have excellent antistatic performance, wear resistance, durability, and can effectively protect the car paint.

[0149] The present invention provides a new type of tubular antistatic car wiping cloth, which achieves high performance and high quality of the product by adopting high-quality polyester filaments, strict dust-free clean production environment, advanced EDI ultrapure water cleaning process and unique antistatic treatment. Compared with traditional antistatic wiping cloths, the present invention has the following advantages:

[0150] Excellent material, using polyester filament, with excellent strength, elasticity, abrasion resistance and chemical resistance, long service life.

[0151] The production environment is clean and is produced in an ISO 4-7 dust-free clean room to ensure high product cleanliness and no secondary contamination.

[0152] Excellent anti-static performance, after EDI ultrapure water cleaning and anti-static treatment, the surface resistance is extremely low, effectively preventing static electricity. Strong durability, high tensile strength, good wear resistance, long service life. No hair loss, no damage to the paint surface, smooth surface, no lint or scratches on the car paint.

[0153] The working principle of the tubular antistatic car wiping cloth described in the present invention is: by using polyester filament as the base material, combined with a series of processes such as high temperature shaping, laser cutting, EDI ultrapure water cleaning, antistatic treatment and drying, the product has excellent physical and chemical properties. Among them, EDI ultrapure water cleaning and antistatic treatment are the key to achieving the antistatic performance of the product. EDI ultrapure water can effectively remove surface impurities and increase surface resistivity; the antistatic agent quickly conducts away static electricity by forming a conductive film on the fiber surface.

[0154] For other structures of the tubular antistatic automobile wiping cloth described in this embodiment, refer to the prior art.

[0155] 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 based on 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 tubular antistatic car wiping cloth, characterized in that: The tubular antistatic automobile wiping cloth is prepared by the following method: (1) Weaving the cloth: Weaving the cloth by a 28-needle double-sided knitting small cylindrical knitting machine; (ii) High stability type: The temperature is set at 170℃~200℃ in a dust-free clean room, and the semi-finished wiping cloth is formed after sealing treatment; (iii) Cutting: Cutting into pieces by automatic laser cutting process; (iv) Cleaning: Use deionized ultrapure water for cleaning in a clean environment; (V) Antistatic treatment: Clean with 1kg of wiping cloth and 10L of normal temperature EDI ultrapure water in a dust-free clean room; (vi) Drying: Drying in a drum dryer; (VII) Packaging quality inspection: The size and performance of the wipes are tested in a dust-free clean room before packaging.

2. A tubular antistatic car wiping cloth according to claim 1, characterized in that: In step (i) of weaving a cloth blank, a double-sided knitting small cylindrical knitting machine uses 100D / 144F polyester filament to weave a cloth blank, the cloth blank has a rib structure, and the cloth blank is in a hollow tubular shape.

3. The tubular antistatic automobile wiping cloth according to claim 1, characterized in that: In step (i) of weaving the cloth, polyester filaments are intertwined on a double-sided knitting small cylindrical knitting machine, knitting needles are arranged on an upper needle plate and a lower needle cylinder on the double-sided knitting small cylindrical knitting machine, and then polyester filaments are introduced to start weaving.

4. The tubular antistatic automobile wiping cloth according to claim 1, characterized in that: The manufacturing processes of step (1) to step (7) are all carried out in a dust-free clean room, which maintains a constant temperature of 22°C ± 2°C and a relative humidity of 55% ± 15%; according to the requirements of the environmental cleanliness value APC, for particles with a diameter greater than or equal to 0.5 μm, the controlled quantity must be less than 100 Counts / 2.83L.

5. The tubular antistatic automobile wiping cloth according to claim 1, characterized in that: In step (iv), EDI ultrapure water is added to the isolated cleaning machine. After the water volume is sufficient, a non-ionic antistatic agent is added. The ratio of the non-ionic antistatic agent to the EDI ultrapure water is 3:100, and the ratio of the EDI ultrapure water to the cloth is 10:

1. When the liquid temperature of the EDI ultrapure water reaches 25°C, the resistivity is 17.6MΩ±0.6MΩ, the LPC index is less than 20counts / mL, the IC is less than 0.01ug / mL, and the NVR DIW is less than 5.0ug / mL. The drum rotates forward and reverse alternately for 10 seconds per minute, and then stands and soaks to achieve anti-static treatment. The cycle continues for 10 minutes before dehydration.

6. The tubular antistatic automobile wiping cloth according to claim 1, characterized in that: In step (six), a 40-minute constant temperature drying period of 90° C. is set in the drum dryer, and after the drying is completed, a 20-minute steady cooling process is performed.

7. The tubular antistatic automobile wiping cloth according to claim 1, characterized in that: In step (seven), the detection includes detecting surface resistance, measuring static voltage, analyzing friction voltage and checking cleanliness.

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