Increasing the filament count (number of filaments) in a filament yarn while keeping the yarn count the same (increases or decreases) the softness.
increases
Increasing the filament count (number of filaments) in a filament yarn while keeping the yarn count constant (increases or decreases) the luster.
decreases
Decreasing the polyester in a polyester/cotton blend will (increase/decrease) the yarn strength.
decrease
Increasing the texture of a filament yarn (increases or decreases) the hand.
increases
Increasing the texture of a filament yarn (increases or decreases) the luster.
decreases
Increasing the texture of a filament yarn (increases or decreases) the potential to snag.
increases
Increasing the yarn twist level for a spun yarn (increases or decreases) the yarn strength.
increases
Increasing the yarn cleanliness (increases or decreases) the yarn cost.
increases
Increasing the yarn uniformity (increases or decreases) the yarn strength.
increases
Increasing the yarn uniformity (increases or decreases) the yarn cost.
increases
Staple (i.e., cut to short length) Dacron fibers can be blended with cotton to form a spun polyester/cotton yarn.
true
The use of CP (compared to KP) yarns will increase productivity and reduce contamination problems.
true
A spun yarn with a CV% of 16% is not as uniform as a spun yarn with a CV% of 22%
false
When the CV% in a spun yarn is small, the yarn is highly variable.
false
When we draw filaments, we make them weaker.
false
Dry and wet extrusion spinning differ primarily in the manner in which the polymer is resolidified.
true
Melt spinning consists of heating a polymer until it melts, extruding the solution through small holes and resolidifying the polymer.
true
In one pound of a 20/1 Ne yarn, there are 9000 yards of yarn.
false
Open-End yarns are stronger than ring spun yarns.
false
Air-jet spun yarns are used in sheeting products.
true
Spun yarns are formed by extruding continuous filaments in extrusion spinning.
false
A filament yarn that has been textured (compared to a flat filament yarn) will have less luster, higher cost, a softer hand (feel) and more problems with snagging.
true
Texturizing manufactured fibers is similar to stretching a rubber band.
false
Yarns make fabric, threads sew parts of fabric together.
true
Shorter fibers in a spun yarn produce a stronger yarn.
false