{
  "$schema": "https://schema.org/",
  "document_type": "Technical Data Sheet & Evidence Boundary Reference",
  "version": "2026.09 engineering release",
  "sku_id": "WC-DL-HEM-8020",
  "product_name": "WonderCloth Double-Layer Hemmed Regenerated Cellulose Cleaning Cloth",
  "manufacturer": {
    "name": "Wuxi Jiali Textile Commodity Co., Ltd.",
    "brand": "WonderCloth",
    "url": "https://wondercloth.top/#organization",
    "facility": "35 customized circular knitting machines, Wuxi, Jiangsu, China"
  },
  "fabric_construction": {
    "knitting_type": "Dual-ply circular knit with 4-needle overlock perimeter hem",
    "nominal_composition": "80% Regenerated Plant-Based Cellulose (Viscose), 20% Polyester filament core reinforcement",
    "lab_tested_composition": {
      "viscose_content": "79.4%",
      "polyester_content": "20.6%",
      "tolerance": "±1.5%",
      "test_report": "Report 260088 (Formaldehyde not detected < 20 mg/kg, pH 6.7 neutral)",
      "url": "https://wondercloth.top/files/compliance/material-composition-formaldehyde-test-report-260088-20260326.pdf"
    },
    "single_ply_gsm": 160,
    "composite_finished_gsm": 320,
    "standard_dimensions": [
      "25 x 25 cm (±1 cm)",
      "30 x 30 cm (±1 cm)",
      "Custom sizes engineered per OEM contract"
    ],
    "edge_finishing": "High-density nylon/polyester lockstitch overlock hem, ultrasonic cut pre-seam option"
  },
  "physical_performance_metrics": {
    "water_absorbency_capacity": "800% - 1000% of dry fabric weight",
    "absorption_speed": "< 1.5 seconds (capillary wicking test)",
    "oil_release_mechanism": "Natural hydrophilic cellulose surface energy displaces grease under warm running water (35°C - 50°C) without harsh detergents",
    "wash_durability": "Tested up to 50 commercial laundry cycles at 60°C without dimensional distortion",
    "surface_safety": "Non-abrasive on PTFE non-stick coatings, stainless steel, acrylic, ceramics and automotive clear-coat"
  },
  "commercial_procurement_tiers": {
    "tier_1_pilot_sample": {
      "minimum_order_quantity": 1000,
      "unit": "pieces",
      "scope": "In-stock greige/white fabric, standard overlock, bulk polybag packing",
      "lead_time_days": "5 - 7 business days",
      "purpose": "Laboratory testing, consumer panel evaluation, dishwasher trial"
    },
    "tier_2_custom_pantone_color": {
      "minimum_order_quantity": 3000,
      "unit": "pieces per color",
      "scope": "Custom solid Pantone yarn dyeing on circular knitting machines, custom colored overlock thread",
      "lead_time_days": "15 - 20 business days",
      "vat_dyeing_rationale": "Matches 150 kg minimum dye vat capacity for shade consistency"
    },
    "tier_3_private_label_retail_program": {
      "minimum_order_quantity": 10000,
      "unit": "pieces",
      "scope": "Custom printed FSC kraft paper sleeve/belly band, woven branded wash-care label, barcoding, customized master shipping cartons, container loading optimization",
      "lead_time_days": "25 - 35 business days",
      "packaging_rationale": "High-speed offset printing and die-cutting tooling setup requirements"
    }
  },
  "claim_boundaries": [
    "Contains 20% polyester core filament to ensure commercial seam tensile strength; must not be marketed as 100% plastic-free or 100% backyard compostable.",
    "Grease-release performance is based on physical cellulose hydrophilicity and varies with polymerized/burnt-on grease types.",
    "Report 260088 applies specifically to the submitted sample batch and should be re-verified for custom-dyed colored production lots."
  ],
  "canonical_url": "https://wondercloth.top/double-layer-hemmed-magic-cloth.html"
}