



The core advantage of COSEK food-grade bulk bags lies in their "complete harmlessness": the fabric is made of imported food-grade PP resin (free of BPA, phthalates, and other harmful substances). Tested by SGS, the total migration is ≤10mg/dm² (complying with GB 4806.7-2016 "Plastic Materials and Articles in Contact with Food"), allowing direct contact with food items like sugar and wheat flour. The handles use the same grade of PP material, featuring a smooth surface without burrs to avoid scratching the contents, while also offering excellent oil resistance (no swelling after 24 hours of immersion in cooking oil).
The bag body adopts a "semi-transparent woven fabric + white handles" combination, ensuring visibility of internal contents (light transmittance of about 60%) without compromising privacy due to full transparency. For food enterprises, this design enables quick identification of material types (e.g., distinguishing granulated sugar from powdered sugar) during storage, reducing the likelihood of misdelivery or omissions. At the retail level, consumers can visually inspect the product through the transparent section, enhancing purchasing confidence. Field tests show that the visual design improves inventory efficiency by 40%.
The handles feature a "widened + anti-slip texture" design (12cm width with fine surface protrusions), ensuring secure grip even with thick gloves, reducing operator fatigue by 35% when moving 2-ton loads. The bag opening is equipped with a "quick-release mechanism" (top rope + zipper assist), allowing automatic tightening during loading and rapid emptying when unloading, saving 25% of the time compared to traditional tie-rope methods. Additionally, the bag body is clearly labeled with "Food Contact Use," "Production Date," and other markings, complying with GB 7718-2011 "General Standard for the Labeling of Prepackaged Foods."
We offer extensive customization: printing of company logos and product names (via screen printing/heat transfer for vibrant, durable colors); capacity options of 1500L, 2000L, or 2500L (1L≈1kg); opening styles including top (with sealable lid) or side (with sampling valve); and even QR code traceability systems (scanning reveals batch numbers, shelf life, etc.). All custom products are HACCP-certified to ensure food contact safety.
| Item | Parameter | Standard |
|---|---|---|
| Material | Food-grade PP woven fabric + white handles | GB 4806.7-2016, FDA 21 CFR 177.1520 |
| Light Transmittance | ~60% (visible content outline) | ASTM D1003-17 |
| Handle Load Capacity | ≥1500N/handle (4-way lift) | ASTM D638-14 |
| Oil Resistance | No swelling/leakage after 24h oil immersion | GB/T 17529.2-2018 |
| Temperature Range | -10°C to +70°C (remains flexible in cold) | GB/T 1040.3-2006 |
Get in touch for more information, pricing, or custom requirements.