Methods of Rope Production
Braided Ropes
They have a core that is braided with threads using spindles. Each spindle is an individual thread. They are characterized by high density, strength, and abrasion resistance, yet they remain flexible and comfortable to use. Braided ropes come in a variety of patterns.
Knotted Ropes
They have a core wrapped with threads using needles. These ropes are more flexible and easier to tie knots with, but they have lower density and abrasion resistance compared to braided ropes.
Twisted Ropes (threads, twines, and ropes)
Twisted ropes do not have a core. The fibers are twisted into twines, which are then twisted into strands, and the strands are twisted into ropes. They are the densest and strongest but less flexible and less comfortable to use.
Properties of Materials Used for Rope Production
Polypropylene
- High resistance to acids and alkalis
- Completely water-resistant, does not absorb moisture
- Unaffected by environmental factors
- Lowest UV resistance
- Low density – lightweight
- Lower strength compared to polyamide
Polyamide (Kapron and Nylon)
- High acid resistance, but low alkali resistance
- Loses up to 30% strength when wet and absorbs moisture
- Unaffected by environmental factors
- Moderate UV resistance – higher than polypropylene
- High density – heavy
- Highest strength – about twice as strong as polypropylene
Polyester
- High resistance to acids and alkalis
- Completely water-resistant, does not absorb moisture
- Unaffected by environmental factors
- High UV resistance – higher than polyamide
- Medium density
- High strength – almost like polyamide
Cotton – Natural Plant-Based Material
- Low resistance to acids and alkalis
- Short-term water resistance, absorbs moisture
- Decomposes under environmental influence
- Complete UV resistance
- Low density
- Strength is about half that of polypropylene
Jute – Natural Plant-Based Material
- Low resistance to acids and alkalis
- Short-term water resistance, absorbs moisture
- Decomposes under environmental influence
- Complete UV resistance
- Low density
- Strength is about half that of cotton
