Core principles for selecting cleaning cloths: First, consider the usage scenario, then the material. Focus on avoiding loose fibers, color fading, and hard object impurities. Don't just look at the price alone. Cleaning cloths are mainly divided into two categories: newly cut raw fabric and recycled old fabric sorted ones. The quality varies greatly.
1. Step 1: Select the material based on the purpose (most important)
Pure cotton cleaning cloth (the first choice, with the largest usage) ✅ Advantages: Fast oil and water absorption, high oil absorption capacity, soft texture, not prone to scratching the workpiece ✅ Suitable for: machine tools, molds, auto repair, hardware, printing, oil removal before painting ⚠️ Distinction: New white raw fabric cut quality is stable; recycled cotton is cheaper, but the quality fluctuates greatly ❌ Not suitable: Cannot be used for precision optics, electronic chips that require completely dust-free
Polyester-cotton T/C cleaning cloth: Fast oil absorption, good tensile strength, wear-resistant, not prone to breaking; suitable for wiping water, dust, light oil stains; not suitable for heavy oil stains.
All-polyester cleaning cloth: Almost no oil absorption, suitable for simple dust sweeping, not recommended for machine processing of oil stains.
Superfine fiber cleaning cloth: No loose fibers, fine fibers; high price, used for precision parts, laboratories, lenses, electronic components.
Cotton recycled fibers (cotton絮)： Fast oil absorption, but loose fibers; can only be used for rough wiping of heavy oil stains, strictly prohibited for painting, precision parts.
2. Select by grade (industry standard classification)
A grade pure white cleaning cloth (the best for newly cut raw fabric) Pure white, no color mix, no printing， no glue， few thread ends. Applicable： painting industry， polishing， food equipment， aluminum， precision molds， easy to see oil stains， no color fading.
Advantages： Source is leftover fabric edges， clean surface， stable quality， main promotion product.
B grade light-colored cleaning cloth： Light gray， light blue， etc.， single color， a few small prints， cost-effective， suitable for machine processing.
C grade mixed-color flower cleaning cloth： Mixed colors， mostly recycled old clothes cut， the lowest price. Applicable： heavy machinery， ships， steel structures， rough heavy oil stains； Risk： Easy to fade， loose fibers， with glue chunks.
3. Check during inspection (5 key points for sampling inspection upon receiving the goods)
Whether there are loose fibers： Rub a wet cloth or white paper on the workpiece or paper， see if there are a lot of fibers. Paint and aluminum workpieces are most afraid of loose fibers.
✅ Cleaning cloths cut from new raw fabric have far fewer fiber fringes than recycled mixed fabrics
Whether there is color fading： Soak and rub， see if the water changes color； stained cloth will contaminate the workpiece and paint surface. Focus on checking for light / pure white models.
Whether there are hard impurities (the top priority) Look inside for buttons， zippers， metal accessories， rubber， thick printed glue， sand. Hard objects will directly scratch molds， sheet metal， polishing surfaces. The sorting process will remove any with glue chunks.
Size and block type Common sizes： 30×40cm， 40×60cm； also available in large pieces. Prefer to select uniform sizes， not too many broken pieces.
Note： Some low-priced goods contain a lot of small broken pieces and edge debris， not easy to use.
Dry and wet strength： Thin cloth that tears easily when pulled after oiling or wetting is not suitable for repeated wiping， wears out quickly.
4. Quick selection comparison table
Painting， polishing， aluminum parts， precision molds → A grade pure white pure cotton (fabric cut from raw fabric is preferred)
General machine tools， CNC， auto repair， light oil stains → B grade light-colored cotton cleaning cloth
Heavy machinery， steel structures， ships， not afraid of fiber dust → C grade mixed-color cotton cleaning cloth
Electronics， lenses， precision dust-free wiping → Superfine fiber cloth
Rough wiping for ditches， thick butter， not concerned about fiber dust → Cotton recycled fibers
5. Key points to avoid purchasing pitfalls
Clarify the source： New fabric cut from leftover edges ≠ Recycled old clothes fabric. The two have significant price and quality differences， clearly explain to the customer before quoting.
Common low-price tactics： Mixed with small pieces of fabric， polyester fabric， a large amount of recycled fibers， unclean sorting with glue chunks.
Purchase as needed, avoid buying the most expensive option blindly: For rough work, using pure white grade A fabric is not necessary and it will increase costs; for high-end parts, one cannot cut corners by using mixed-color fabric as it would lead to increased costs.
Storage: Pure cotton cleaning cloths are prone to absorbing moisture. The warehouse should have good ventilation to prevent mold growth.
