FIBC Bulk bags production process sharing

Dear customers and friends from all over the world:
Greetings! I am a factory manager who has been working in the FIBC Bulk bags industry for 20 years, and I am honored to introduce the core production process of our factory to you in detail. As an ISO 9001 and CE certified professional manufacturer, we always take “safety, efficiency and environmental protection” as our concept, and realize the whole chain of quality control from raw materials to finished products. Below is the explanation of the six key links in the production of FIBC Bulk bagss.

I. Raw material selection and pretreatment

1. Raw material control
   We strictly select high-density polyethylene (HDPE) and polypropylene (PP) particles, and all raw materials have passed SGS testing to ensure non-toxic, stretch-resistant, acid and alkali resistant. We keep samples of each batch of raw materials for inspection, so as to eliminate hidden quality problems from the source.
2. Color matching and modification
   We customize the color according to customer’s demand and add antioxidant and anti-ultraviolet masterbatch to improve the weather resistance of the products. Adopting German imported twin-screw extruder for melt blending to ensure uniform dispersion of color masterbatch. Weaving process: precision weaving strength guarantee.
3. Wire drawing
   After the raw material is melted at high temperature, it is extruded into silk through precision molds, and the precision of wire diameter control reaches ±0.02mm. High-speed circular looms (such as those made in Taiwan) are used to form a high-strength basecloth through warp and weft interweaving, and the grammage error is ≤1%.
4. Base cloth inspection
   Each roll of base cloth is tested by electronic tensile machine to ensure that the breaking strength ≥ 2500N, top breaking strength ≥ 3500 N. At the same time, the thickness, density, light transmission rate of the full inspection, substandard products immediately scrapped. Third, the coating process: the core technology of waterproof and moistureproof
5. Packing bag film lamination
   Adopting the film coating equipment imported from Italy, the LDPE resin is evenly coated on the surface of the base cloth to form a waterproof film of 0.03-0.05mm. Temperature, pressure and speed are controlled by three parameter linkage to ensure that the film layer is firmly adhered and free of air bubbles.
6. Ventilation hole design
   According to the characteristics of the goods (such as powder, particles), through the laser perforation technology accurately open the air permeability holes, hole diameter 0.8-1.2mm, not only to ensure air permeability and prevent leakage. Sewing and structural molding of FIBC Bulk bags
7. Intelligent cutting
   Adopting CAD layout system to automatically optimize the utilization rate of fabric (up to 95% or more). The precision of CNC cutting machine reaches ±0.5mm to ensure the uniformity of bag size.
8. Multi-thread sewing
   Using Japanese heavy industrial sewing machine, the bag body adopts double-thread chain stitching, stitching strength ≥2000N/m. The connection between the sling and the bag body adopts “three-stranded wire + reinforcing sheet” technology, which can withstand 5:1 safety coefficient tensile force. Fifth, the quality of FIBC Bulk bags testing: 21 strict screening barrier
9. Physical properties test
   Including drop test (no breakage at 1.8 meters height), stacking test (no deformation at 4 layers for 24 hours), and lifting test (1.5 times the load for 5 minutes).
10. Appearance Inspection
    Through the AI visual inspection system, 100% screening of pins, coating uniformity, printing clarity, zero defective products out of the factory. VI. Customized post-processing and delivery of FIBC Bulk bags
11. Personalized processing
    Provide value-added services such as sling reinforcement, inner film bag lining and mark printing. For example, food grade products can be attached with FDA certified inner film, and chemicals can be customized with anti-static coating.
12. Packaging and Logistics
    Finished products are folded or rolled according to customers’ requirements, using waterproof packing film + woven bag outer box to ensure the safety of long-distance transportation. We cooperate with DHL and COSCO Shipping to provide door-to-door logistics solutions. Twenty years of concentration, just for a bag of peace of mind
    From raw materials into the factory to finished product delivery, our production cycle is controlled in 15-20 days, supporting small batch trial production and urgent order expedited processing. We look forward to being your solid partner in the global supply chain of FIBC Bulk bags with professional technology and reliable quality!