Xinxing logo Dalian Xinxing Plastic Products Co., Ltd. FIBC · Jumbo Bags · Bulk Packaging
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Production Process

Eight interlocked processes — from one granule of raw material to a qualified bulk bag, every step stands up to inspection.

FIBC production steps

  1. Raw Material InspectionINCOMING

    Virgin polypropylene (PP) granules inspected batch by batch for melt index and appearance — recycled material strictly rejected, safeguarding fabric strength from the source.

  2. Blending & Tape ExtrusionEXTRUSION

    Materials blended by formula, melt-extruded and stretched into flat tapes with controlled width and tensile strength; conductive tapes are woven in at this stage for anti-static bags.

  3. Circular WeavingWEAVING

    Circular looms weave warp and weft tapes into tubular base fabric with in-line monitoring of weight, density and appearance; ventilated bags use a high-permeability weave.

  4. Coating & CuttingCOATING & CUTTING

    Base fabric laminated as needed for moisture resistance, then precisely cut into panels per pattern drawings with tightly controlled dimensional tolerance.

  5. Sewing & FormingSEWING

    Bag body, filling spout and discharge spout sewn with uniform stitch pitch and secure seams; load-bearing joints reinforced to order standards.

  6. Lifting Loop SewingLIFTING LOOP

    Lifting loops and reinforcement parts sewn; belts batch-tested for breaking strength to ensure an overall safety factor of 5:1.

  7. Finished Product TestingQC TESTING

    Whole-bag tensile and drop tests; size, weight, printing content and sewing quality checked item by item with records retained per batch.

  8. Packing & WarehousingPACKING

    Qualified bags folded, palletized and wrapped; cartons labeled with batch and specification, stored ready for dispatch — export packing customizable.

Production Site

Inside Our Workshop

Extrusion and tape stretching process
Extrusion & tape stretching
Circular weaving workshop production line
Circular weaving workshop
Film coating process site
Film coating line
Quality Control

Three QC gates throughout production

Incoming QC (IQC)

Raw granules, sewing thread, lifting belts and accessories inspected batch by batch — unqualified materials returned.

In-Process QC (IPQC)

In-line patrols across extrusion, weaving and sewing with real-time monitoring of weight, density and stitch pitch.

Outgoing QC (OQC)

Whole-bag tensile and drop tests, appearance and printing checks — batch records fully traceable.

Let the sample speak for our process

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