PP Woven Bag

PP woven bags are flexible packaging bags made from polypropylene and polyethylene raw materials, extruded into fibers, stretched, and woven. The product features a distinct, tightly woven mesh texture and a glossy finish. PP woven bags offer high load-bearing capacity, abrasion resistance, flexibility, corrosion resistance, excellent breathability, and lightweight properties, making them widely used in the packaging and transportation industries.
Based on raw materials, PP woven bags are categorized into virgin PP woven bags and recycled PP woven bags. Virgin PP woven bags are manufactured directly from pellets produced by petrochemical companies, while recycled PP woven bags are made entirely from 100% post-consumer packaging materials that undergo collection, sorting, cleaning, and reprocessing. In recent years, with growing global environmental awareness, recycled PP woven bags—represented by RPP woven bags—have gained widespread adoption.
Based on their characteristics and diverse application scenarios, PP woven bags can undergo processes such as lamination, printing, color printing, adding inner bags, or incorporating inner liners. Customers should carefully consider their requirements and make informed decisions balancing practicality and aesthetics.

Brief Introduction to Functional Additions for PP Woven Bags:
1.Lamination: This process involves bonding a PE protective film to the exterior of the PP woven bag. It primarily isolates the bag from air, imparting waterproof properties. Bags treated with this method are typically non-breathable.
2.Printing: PP woven bag printing includes standard printing and color printing. Standard printing involves etching customer-specified designs onto rubber plates for direct application onto the bag surface, serving branding and aesthetic purposes. This method offers lower precision but is cost-effective. Color printing involves etching customer-specified designs onto copper plates for printing onto OPP film, which is then laminated onto the PP woven bag surface via PE adhesive. This method offers high precision, resulting in bags that combine aesthetics with waterproofing. However, it carries higher production costs.
3.Inner Liner Insertion: The inner liner PP woven bag process involves inserting a PE bag inside the PP woven bag. This primarily enhances the bag's internal waterproofing capability. It is important to note that the inner and outer bags produced using this method can be separated.
4.Inner-Lined PP Woven Bag: This technique involves bonding PE to the inner surface of the PP woven bag using EVA adhesive. The resulting bag possesses waterproof properties. This type of PP woven bag is primarily used in applications requiring waterproofing and automated packaging.