case

In the manufacturing of Unsaturated Polyester Resins (UPR), Vinyl Ester Resins, and Fiberglass Reinforced Plastics (FRP), industrial compounding often faces a dual dilemma: hazardous chemical dust exposure and product contamination from non-soluble packaging. Standard Polyethylene (PE) packaging fails catastrophically when introduced into liquid resin systems because it cannot dissolve in Styrene, leaving plastic skins that clog filters and ruin entire batches. Our premium Styrene-Soluble EVA

Our adjustable VFFS vertical packaging machine is specially designed for 5–25kg hot-melt road marking coating. Running steadily at 6 bags per minute with stepless speed control, this CE-certified bagging system pairs seamlessly with our eco-friendly EVA low-melting film. Together, they eliminate plastic residue, cut labor costs, and deliver a highly cost-effective solution for coating manufacturers across Europe and North America.

This case focuses on the packaging upgrading for ultra-fine talc powder. The traditional craft paper valve bags were fully replaced with high-strength HDPE valve bags, perfectly matching the Haver & Boecker automatic powder filling machine. The upgrade completely solves common problems of talc powder packaging such as moisture caking, dust leakage, bag breakage and unsealing failure. It realizes dust-free filling, full moisture-proof sealing and high-precision mass production.

We helped a feed powder customer upgrade from traditional 50kg PP woven bags to premium custom PE valve bags, meeting their core demands of moisture-proof, breathable, dust-tight and no powder leakage for EU & US export. Through professional sample testing and tailored design based on their material, filling machine and budget, we finalized the optimal solution with perfect on-site application effect, enhancing their product’s brand image in overseas markets.

In the packaging industry, the core demands for food-grade packaging always lie in safety & compliance paired with practical adaptability. For 25kg food-grade plastic bags, this means ensuring not only safe transportation and storage but also maintaining the integrity of the food inside. Recently, we worked with a client who needed custom 25kg food-grade plastic bags. The entire negotiation process focused on requirement clarification, solution adaptation, sample validation