Comparing Woven and Non Woven PP Fabrics

Distinguishing between woven and non-woven PP fabrics is simple. Just examine the inside of the laminated bag. If you notice a checker-board pattern with threads intersecting at ninety-degree angles, it is woven PP. In contrast, if you see a consistent textured appearance, it is non-woven.

Plastics vary significantly, much like wool and cotton differ as natural fibers. While both are versatile, polypropylene stands out among plastics. It finds use in an array of products, from lunch boxes and pens to bottle caps and car parts. Interestingly, polypropylene can be transformed into fabric through two different methods.

Woven PP involves pressing long strands of polypropylene molecules together, creating thread-like strips that are woven to form a fabric. This type of PP is commonly used for industrial purposes, such as making sandbags, and for packaging bulk items like coffee and rice. It boasts strength, cleanliness, and ease of sewing, making it ideal for bag production. However, due to its slippery nature, woven PP is usually laminated to prevent strands from separating. Over time, the lamination and PP may dry at different rates, leading to slight puckering.

On the other hand, non-woven PP is produced by spinning polypropylene polymers using heat and air to create fluffy threads, which are then pressed between hot rollers to form a flexible, solid fabric with a canvas-like texture. This fabric is breathable, durable, and retains its color and texture for years. Graphics can be easily screen-printed on non-woven PP in a few colors.

Woven PP is typically white and achieves graphics through lamination. Some variations use colored threads and clear lamination to create a plaid pattern. Conversely, non-woven PP wholesale shopping bags can be manufactured in a wide range of solid colors, providing ample customization options.