Haining Duletai New Material Co., Ltd. is a manufacturer and exporter of coated and laminated industrial fabrics based in Haining, Zhejiang, China. Our product range covers PVC tarpaulins, digital printing materials, roller blind fabrics, projection screen materials and solar shading textiles. We work with manufacturers, fabricators and distributors worldwide, offering standard products and custom material development.
Established in 2003, our factory operates across three factory sites with more than 400 employees, including over 20 R&D technicians and 50 quality inspection personnel. Our manufacturing operations cover base-fabric preparation, PVC film production, lamination and coating, supported by material development and laboratory testing.
Our fabrics are used in truck covers, tents, canopies, ventilation ducts, advertising displays, window shading and other industrial applications. Polyester filament yarns form the basis of our polyester base fabrics. Fabric construction, coating, dimensions and finish are selected according to the intended use and the customer's specification.
Haining is located in Zhejiang Province, between Shanghai and Hangzhou. Our location connects the factory with these two business centres and their international transport links.
Visitors can arrive via Shanghai Pudong International Airport or Hangzhou Xiaoshan International Airport. Tongxiang Railway Station on the Shanghai-Hangzhou high-speed railway is another route to Haining. Please contact our team before your visit.
Our production routes combine base-fabric preparation with PVC film production, lamination or knife coating, depending on the material being made. Each route is followed by inspection, testing and preparation for shipment.
01
We prepare the polyester base-fabric construction required for the material. Woven and warp-knitted constructions are selected to suit the product specification and its processing and application requirements.
02
The PVC formulation is prepared for the selected product. Calendering produces the PVC film used in the relevant material construction, with formulation and film properties developed against the customer's requirements.
03
Lamination combines PVC film and base fabric. Knife coating applies the coating to the fabric through a separate production route. PVC and PU coating capabilities are described individually in the equipment section below.
04
Material is inspected during production and tested against the properties specified for the order. The quality control process includes raw-material checks, production inspection, finished-material sampling and sample retention.
05
Finished material is checked for dimensions and prepared for packing, storage and loading.
06
Store, identify and prepare the finished rolls for shipment.
For ventilation-material orders, additional services include precision slitting and rewinding, with Velcro or zipper sewing available for the specified construction.
Packing options include wooden cases and different pallet configurations. The packing method is agreed for each order according to the material dimensions, quantity and shipment requirements.
Strapped wooden cases.
Wrapped rolls secured together on pallets.
Rolls stacked and stretch-wrapped on a pallet.
Our production capabilities include weaving, calendering, lamination and knife coating. These processes allow us to produce different fabric constructions for applications such as truck covers, tents, advertising displays and window shading. Working from customer specifications and reference samples, we develop materials with the required construction, dimensions and surface finish. Functional treatments, including flame retardancy, UV resistance and mildew resistance, can be incorporated according to the intended application.
3 calendering lines
Our factory operates three calendering lines, with production widths including 3.2m and 5.0m. The 5.0m calendering line uses rollers imported from Germany. This department produces PVC films for the relevant film and composite-material constructions.
8 lamination lines
The lamination department has eight production lines: seven 3.2m lines and one 5.0m line. The wide-format line supports materials for applications such as large advertising displays and outdoor tents, where a wider material construction is required.
Up to 6.8m wide
Our PVC knife-coating capabilities include 3.2m and 6.8m equipment. The maximum coating width is 6.8m, allowing us to develop wide-format PVC-coated materials for the specified application.
Up to 5.0m wide
PU coating is supported by 3.2m and 5.0m equipment. This provides a separate production option for PU-coated textiles, including materials for ventilation and illuminated-sign applications.
4 coating lines in total.
Customers can provide a datasheet, reference sample and application requirements for material development. Depending on the product, functional options include flame retardancy, anti-static properties, UV resistance, mildew resistance and antibacterial treatments. The construction and required performance are specified for the individual order.
Material development and production are supported by our testing laboratory and quality control team. We evaluate properties such as tensile strength, tear resistance and coating adhesion, alongside other product-specific requirements. Inspection, sample retention and product traceability form part of our quality control process, supporting checks against agreed specifications and follow-up on subsequent orders.
Our inspection team checks each batch of raw materials and takes samples every 500-1000m of finished material. Width, roll length, mass, tensile strength, tear strength and coating adhesion are checked against the agreed specification. Welding, abrasion and ageing tests are carried out where required. Non-conforming results are investigated and addressed to prevent batch quality issues.
Checks on each batch of raw materials.
Checks during manufacturing and visual inspection.
Sampling every 500-1000m and checks against the agreed specification.
Retained samples and batch identification for subsequent checks.
Our product testing also includes UV and latex printing tests for printing materials.
Our laboratory supports physical and chemical testing, formulation development and sample preparation. The equipment shown includes lightfastness testing equipment, phthalate testing equipment, heavy-metal testing equipment, a flammability test chamber, chemical analysis equipment, low-temperature flexibility and impact testing equipment, a tensile and tear testing machine, a heat oven, formulation development equipment and a laboratory sample-making machine.
Product-specific requirements can also include bacterial, mildew and fungal resistance, moisture-vapour transmission, fluid resistance and burst strength. The required properties and test scope are agreed for the selected material. Laboratory work supports the development of new constructions as well as checks on production samples.
Our product documentation includes fire-performance reports, surface-resistance testing and chemical screening. The previews below are pages from reports shown in our ventilation-material catalogue.
The document groups include fire-performance reports for DIN4102-B1, M1, M2 and NFPA701, surface-resistance testing, and REACH SVHC and RoHS screening. These documents are presented separately from the laboratory equipment so customers can review the relevant test category and request the complete report.
Reports apply to the submitted material, colour and test conditions. Contact our team for the complete report matching your specification.
Duletai serves customers in Europe, the Americas, Southeast Asia and other markets. Our team provides material advice, sample support and assistance with production and export arrangements. With our factory and sales office in Haining, close to Shanghai and Hangzhou, we welcome customers to visit our facilities and discuss their material and business requirements directly with us.
We also work with customers on joint material development, using their application requirements, datasheets and reference samples to guide the project. Technical support covers material selection, sampling and follow-up on production requirements.
