Ⅰ. Outer fabric (direct contact with skin / outer layer covering)
1. Polyester knitted fabric (mainstream bestseller)
Characteristics: Wear-resistant, washable, no pilling, moderate elasticity, no color fading
Advantages: Low cost, good shaping, large export volume, skin-friendly and non-irritating
Applicable: General household use, therapeutic treatment, sports cold compress, mass-market ice bag
2. Polyester-cotton fabric
Characteristics: Soft cotton feel, strong moisture absorption, warm and smooth touch
Disadvantages: Prone to pilling, deformed after long washing, weak waterproof performance, not durable
Applicable: Maternity, close-fitting soothing models, mid-range cost
3. Aquatic material SBR
Characteristics: High elasticity, thick heat retention, waterproof and leak-proof, wear-resistant and tear-resistant
Advantages: The best heat retention and cooling effect, built-in elasticity to fit joints, full durability
Applicable: Strap-type joint protection, sports rehabilitation, high-end therapeutic ice bag
4. Synthetic OK fabric / brushed fabric
Characteristics: Fine and smooth texture, high-end feel, can be directly attached to Velcro
Advantages: High appearance level, high quality texture, can be used for seamless edge binding
Applicable: High-end medical beauty, therapeutic hospitals, export high-end finished products
II. Inner waterproof and leak-proof layer (core leak-proof layer)
1. PVC waterproof layer (market basic model)
Advantages: Low cost, stable waterproof performance, good flexibility
Disadvantages: Likely to harden at low temperatures, general aging resistance, ordinary environmental protection level
Positioning: Affordable and high-volume, domestic sales, regular low-end export
2. TPU waterproof layer (standard for mid-range)
Advantages: Non-toxic and odorless, resistant to high and low temperatures, soft and non-hardening, anti-aging, environmentally friendly without odor, stronger leak-proof performance
Disadvantages: Higher cost than PVC
Positioning: Export, maternal care, medical rehabilitation, long-term repeated use models
III. Internal filling material
IV. Accessories and components
Velcro: Injection hook (hard and durable), nylon hook (soft and skin-friendly) two options available
Edge binding fabric: Reinforces edges to prevent cracking and fabric detachment, prolongs service life
Loose elastic band: High-stretch polyester material, suitable for limbs, waist and abdomen, shoulder and neck multiple parts fixation
V. Summary of material compatibility
High-volume and affordable: Polyester knitted fabric + PVC inner liner
Export mid-range: Polyester + TPU inner liner
High-end therapeutic / sports: Aquatic material + TPU thick inner liner
Medical beauty high-quality: Brushed fabric / OK fabric + food-grade TPU inner liner
