1. The purpose of the two is different:

1. Uses of nylon yarn: This type of product has a wide range of uses. It is a good material that replaces steel, iron, copper and other metals with plastics. It is an important engineering plastic; cast nylon widely replaces wear-resistant parts of mechanical equipment, instead of copper and alloys. For wear-resistant parts of equipment. Suitable for making wear-resistant parts, transmission structural parts, household appliances parts, automobile manufacturing parts;

The screw prevents mechanical parts, chemical machinery parts, and chemical equipment. Such as turbines, gears, bearings, impellers, cranks, dashboards, drive shafts, valves, blades, screw rods, high-pressure washers, screws, nuts, sealing rings, shuttles, sleeves, bushing connectors, etc.

2. The purpose of polypropylene yarn (also called pp yarn): webbing and rope woven with pp yarn/polypropylene yarn can be used for various luggage belts, travel bags, backpacks, shoelaces, mobile phone straps, etc.

2. The characteristics of the two are different:

1. The characteristics of nylon yarn: abrasion resistance is higher than all other fibers, 10 times higher than cotton abrasion resistance, and 20 times higher than wool. A little polyamide fiber is added to the blended fabric to greatly improve its abrasion resistance; When stretched to 3-6%, the elastic recovery rate can reach 100%; it can withstand tens of thousands of times of bending without breaking.

2. The characteristics of polypropylene yarn: Because polyamide has non-toxic, light weight, excellent mechanical strength, wear resistance and good corrosion resistance.

3. The overview of the two is different:

1. Overview of nylon yarn: Long was developed by the outstanding American scientist Carothers and a scientific research group under his leadership. It is the first synthetic fiber in the world. Nylon is a polyamide fiber (nylon fiber). ). The emergence of nylon has given a new look to textiles. Its synthesis is a major breakthrough in the synthetic fiber industry and a very important milestone in polymer chemistry.

2. Overview of polypropylene yarn: pp yarn and polypropylene yarn are also called polypropylene general-strength yarns, pp yarn/polypropylene yarn and polypropylene colored yarn/polypropylene general-strength yarns are mainly used for ribbons and ropes.