After deciding to use polypropylene staple fibers, it is crucial to make an accurate choice in the face of different specification parameters. Choosing the right model can maximize its performance. Choosing the wrong one may lead to production disorders or product defects. The following technical indicators mainly need to be focused on:

1. Fineness (denier, D) : This is a key indicator for measuring the fineness of fibers. Common ones include 1.5D, 2D, 3D, 6D, 15D, etc. The larger the number, the thicker the individual fiber. Fine denier fibers (such as 1.5-2D) have a soft hand feel and are suitable for the production of high-end wiping cloths and thin non-woven fabrics. Coarse denier fibers (such as 6-15D) are crisp and elastic, and are often used in products that require strong support, such as carpet base fabrics and filter felts.

2. Cutting length (mm) : The length of polypropylene staple fibers directly affects their processability and the performance of the final product. Common lengths include 32mm, 38mm, 51mm, 64mm, 76mm, etc. When the length is shorter, the fibers are more evenly distributed in the non-woven fabric, but the strength may be lower. When the length is longer, the binding force between fibers is stronger, and the product strength is higher, but the requirements for opening and carding equipment are also higher. It needs to be matched according to the requirements of subsequent spinning, needling or spunlacing processes.

3. Curl degree and curl shape: Curling can enhance the cohesion between fibers, improve fluffiness and the uniformity of the processed web. Attention should be paid to the number of curls per inch and the stability of the curls (whether they are prone to disappear during processing).

4. Surface treatment (oiling) : During the production of fibers, specific oiling agents are added, which is related to their antistatic property, bundling property, and compatibility with subsequent processing techniques (such as water-based bonding). Different uses (such as spinning and non-woven fabrics) have different requirements for the type of oiling agent. It is essential to clearly inform the supplier.

Jiangsu Haibang New Materials Co., LTD., formerly known as Taizhou Hailun Chemical Fiber Co., LTD., is a technology-oriented chemical fiber enterprise specializing in the research and development, production and sales of polypropylene staple fibers. The company has two factory areas in Taizhou City, Jiangsu Province, located in the north and south (18 kilometers apart), covering a total area of over 100,000 square meters, with 50,000 square meters of factory buildings and over 10,000 square meters of office buildings. The company has 9 advanced fully automatic polypropylene staple fiber production lines with an annual designed production capacity of 90,000 tons. The company has established a complete polypropylene staple fiber testing laboratory, equipped with a full set of fiber testing instruments, and has the ability to develop new polypropylene staple fiber products.