Question

If projectile gripper, rapier & air jet weaving are compared for techno-economic aspects, one can say that

• A. Rapier is better than projectile gripper & air jet
• B. Air Jet is better than rapier & projectile gripper
• C. Projectile gripper is better than air jet & rapier
• D. Projectile is better for 20's sheeting production

Hint:

• Air Jet Looms Highest weft insertion rates (speed/productivity) for many common fabric types. Economical for mass production. Less versatile for yarn types. High energy (air) consumption.
• Rapier Looms Highly versatile for yarn types and patterns. Good fabric quality. Speeds are generally lower than air jet but can be high for flexible rapiers. Good for fashion/specialty.
• Projectile Looms Versatile for yarn types, can weave very wide fabrics. Robust. Speeds lower than air jet and many rapiers. Good for specific niches.
• For overall "techno-economic" comparison where productivity is a major factor for common fabric types, air jet looms often lead.

Answer 1

The Correct Option is B

To evaluate the techno-economic aspects of projectile gripper, rapier, and air jet weaving methods, we need to consider both the technical performance and economic efficiency of each. Let's break this down:

• Rapier Weaving: This method is versatile, suitable for a wide range of fabrics, and provides high-quality output with intricate designs. However, it can be slower than alternatives and more costly in terms of maintenance and energy consumption.
• Projectile Gripper: Known for its robustness and ability to handle heavy fabrics, but typically slower and with higher initial costs compared to air jet weaving.
• Air Jet Weaving: Generally offers the fastest weaving speeds, making it advantageous for high-volume production. It's energy-efficient, with lower wear-and-tear since it uses air to propel the yarn, and requires less maintenance.

Given these aspects, air jet weaving is considered the best option among the three when assessing both technical capabilities and economic benefits. This method supports faster production, reduced costs, and requires less maintenance, therefore providing the most techno-economic advantages.

Hence, the conclusion is that Air Jet is better than rapier & projectile gripper.