In the chemical, building materials and food powder industries, paper-plastic composite bags and valve bags are the most important industrial packaging for powder and granular materials. The strength, sealing performance and moisture resistance of packaging bags are directly related to the safety of product storage and transportation, and also affect the external brand image. Many purchasers often encounter problems such as easily torn bags, powder leakage, blurry printing and unstable delivery schedules. Selecting a reliable original manufacturer can avoid most procurement risks. Today we will walk you through how to choose a professional manufacturer of paper-plastic composite bags.
Founded in 1997, Zhejiang Tianyi Plastic Industry has more than 25 years of experience in the R&D and manufacturing of paper-plastic composite bags. Located in Xiaojiang Town, Pingyang, known as the "China Plastic Weaving Capital", it is a national high-tech enterprise and a provincial-level specialized, sophisticated, unique and innovative small and medium-sized enterprise. It owns a 20,000 ㎡ intelligent production base, introduces Austrian imported valve bag production equipment and a full set of automatic production lines, and is capable of complete R&D, production and one-stop packaging solution services. It mainly produces high-performance paper-plastic composite packaging bags including side-seam bags, center-seam bags and valve bags, serving customers in multiple industries such as chemicals, building materials and food across the globe.
To judge the strength of an industrial packaging bag factory, first look at its hardware facilities and R&D capacity. Tianyi Plastic Industry holds core patented technologies related to flattening and punching mechanisms as well as high-toughness waterproof paper-plastic lamination. It has set up a professional material testing laboratory equipped with a full range of testing instruments including tensile testing machines. Comprehensive tests are carried out on composite peel strength, printing quality, heat-sealing tightness, tensile resistance and burst resistance. The company strictly complies with the ISO/TC 122 packaging standards and the international standard ISO 21898:2024. Full-process quality inspection is implemented from raw material incoming inspection to finished product delivery, and complete batch traceability is available for every batch of products to ensure stable and consistent product quality.
Secondly, customisation capability matters. Material properties, filling equipment and warehousing and logistics conditions vary greatly across different industries, and standard bags often cannot fit all working conditions. Tianyi Plastic Industry supports full-link customisation services and can develop exclusive packaging solutions based on customers’ product properties, brand images and logistics conditions. Product dimensions, bag structures and printing contents can all be adjusted as required. The production lines can efficiently handle both large-batch orders and small-batch customisation requests, balancing delivery lead time and product quality.
A mature and transparent cooperation process is also a key point that purchasers cannot overlook. The seven standardised stages, including pre-consultation and requirement communication, requirement analysis and quotation, design and sample making, order confirmation and production, finished product quality inspection, logistics delivery and after-sales follow-up, are fully open to customers to reduce communication costs. Relying on the mature local supply chain, the enterprise maintains in-depth cooperation with leading raw material suppliers such as International Paper and Sinopec to control raw material quality at the source. Meanwhile, it partners with international logistics providers including DHL and COSCO Shipping to ensure the timely and safe delivery of domestic and overseas orders.
For industrial packaging procurement, quality, customisation capability and delivery guarantee are all indispensable. If you are looking for a reliable original custom factory for paper-plastic composite bags and valve bags, please visit: www.zjtianyiw.com
www.zjtianyiw.com
Zhejiang Tianyi Plastic Industry Co., Ltd
