{
  "checked_at": "2026-09-11",
  "user_request": "以莱卡面料为主调整现有四款提拉面罩",
  "confirmed_material_specification": null,
  "working_assumption": "含氨纶的四面弹针织面料为主体，具体纤维配比、克重及LYCRA品牌采购待确认",
  "sources": [
    {
      "title": "What Is LYCRA Fiber?",
      "url": "https://www.lycra.com.cn/en/our-brands-lycra/what-is-lycra-fiber",
      "supports": "LYCRA是品牌氨纶，与其他纤维组合使面料具有弹性与回弹。"
    },
    {
      "title": "LYCRA SPORT Fabric Technology",
      "url": "https://www.lycra.com.cn/en/business/search-technologies/lycra-sport-fabric-technology",
      "supports": "面料性能应分别评估拉伸、回弹、压缩与合身性，不能仅用纤维比例推定表现。"
    }
  ],
  "design_judgements": [
    "A01使用独立网眼拼片替换24个分散圆孔，简化包边路径。",
    "B02与D04的条状构件改成可缝合双层布片，不采用硬质支撑条。",
    "C03以布袋压边替换按扣，内衬可抽取。",
    "主体分为三块可编辑3D裁片；二维版型、缝份、负松量均待打样师按实样确定。"
  ],
  "model_assumptions": {
    "exterior_layer_thickness_mm": [
      0.5,
      0.6
    ],
    "purpose": "仅用于薄布视觉表达，不是实测面料厚度或BOM",
    "no_pressure_or_comfort_simulation": true
  }
}