Must-read for procurement! How to choose high-strength polypropylene industrial yarn without falling into traps 

Many purchasing departments have reported that although they selected high-strength polypropylene industrial yarn, the yarn frequently broke during the spinning process and the finished product performance was unstable. Based on 22 years of experience in chemical fiber production, Shengjie Hezhi Chemical Fiber Finishing Practical Purchasing Guide helps purchasing departments accurately match requirements and reduce trial-and-error costs. 

1、Set parameters based on actual needs, avoid blindly chasing high prices. 

The first step in procurement is to clearly define the downstream application. Parameter matching is far more crucial than simply pursuing high strength. 

For products such as cables and container bags that are used for bearing weight, priority should be given to ensuring both tensile strength and moderate elongation to prevent excessive deformation under force; when weaving geotextiles and filter cloths, attention should be paid to the uniformity of the yarns to reduce weaving breaks; for outdoor fishing nets and protective nets, it is necessary to communicate in advance about the requirements for anti-aging and resistance to acid and alkali. 

At the same time, confirm the fineness, color, and whether flame-retardant modification is required. Clear requirements are necessary to match the corresponding specifications, to avoid the situation where the goods cannot be processed upon arrival.

II. Choose reliable manufacturers for stable supply and stable quality. 

Under the same parameters, the quality control capability of the manufacturer determines the long-term production cost. It is advisable to choose manufacturers that have their own complete spinning lines and use brand-new polypropylene raw materials. The strength of the yarn and the shrinkage fluctuation between batches are smaller, and there is no need to frequently adjust the equipment parameters. 

Before the purchase, samples can be requested for trial production on the machine. At the same time, the manufacturer's production capacity and delivery time should be confirmed. During peak seasons, avoid supply disruptions. For large-scale and long-term purchasing needs, communication can be conducted in advance to establish a stable production schedule. 

Selection Summary Suggestions 

Purchase high-strength polypropylene industrial yarn. The key point is "adaptation first". For ordinary belts and sewing, the regular specifications are selected; for outdoor and chemical corrosion environments, the functional modified types are chosen. For large-scale and long-term purchases, priority is given to on-site inspection of the production line and verification of batch test records. For small orders, samples are tested to ensure accuracy before placing the order in bulk, balancing quality and stable supply. 

Website: www.sjfibre.com

Contact Number: 0519-83347618

Company Address: No. 89, Henan Road, Hangling Town, Wujin District, Changzhou City, Jiangsu Province

Email: sjfiber@163.com