TE 302 Laboratory Experiment No. 6
Title: Study of the Mechanics of Looms
Objectives:
1. To study the design of the main mechanism of weaving looms.
2. To compare the dierent beat-up, shedding and lling insertion systems used.
3. To compare the productivi

TE 302: Weaving Calculations
1. Using the mass-spring model for the picking mechanism, derive the equation of motion for
the shuttle.
2. Calculate the average shuttle velocity and the picking power in horsepower for the following loom:
Loom speed(p) = 200

TE 302: Weft Knitting Production Calculations
1. Calculate the production in yards per hour for the following 1 1 rib fabric. The fabric
has 25 courses per inch in the nal state. The machine rotates at 20 r.p.m., has 36 feeds
and runs for 95% of the time.

TE 302: Warp Knitting Production Calculations
Given:
Number of machines
Type of fabric
Relaxed fabric width
Relaxed courses per inch
Machine speed
Eciency
Working hours per week
14
tricot jersey
120
62
2200 courses per minute
87%
120
Required:
1. Linear y

TE 302: Warping Eciency Example
Given:
Number of ends/section beam
Yarn number
Warp beam capacity
Warping speed
Yarn package weight
End break rate
Time to repair a break
Dong time / beam
Comb threading time
Creeling time / position
Headstock (or creel cha

TE 302: Winding Eciency Calculations
1. A Scharer precision winder running at 350 yards/min is used to wind 5 lb. cones of 210
den. nylon yarn. What is the minimum time required to wind a package using this winder?
It is known that the winder is down 3.0

TE 302: Design of DID and CP
For the following Fancy Diamond design, derive the drawing-in draft and the chain-plan using
the minimum number of harness frames.

TE 302: Weave Room Eciency Example
Denitions:
x The average number times the loom stops per minute.
c The average repair time (min) per stop. In other words, c is the average time the weaver stops at a
loom to repair it. It is calculated by dividing the t

Fluid Mechanics Problem #5:
Find the velocity, mass flow rate
(in kg/s) and the impact force
(exerted on a fixed rigid plate)
of a hydroentangling waterjet
discharged from a manifold at
200 are pressure if the nozzle
diameter is 128 micron.
Repeat the abo

Fluid Mechanics Problem #1:
The figure below shows a calendar bonding process. If the
web enters the calendar with the same velocity as it leaves
it, calculate the density change.
3 mm
1 mm
Fluid Mechanics Problem #2:
The figure below shows a calendar b

TE 302 Laboratory Experiment No. 9
Title: Nonwovens: Thermal, Spray, and Needle Punched Bonding.
Objectives:
1. To manufacture a 60 g/m2 air laid eece on the Rando-Webber using 15% and
30% low melt polyester ber.
2. To manufacture a 60 g/m2 air laid eece

TE 302: Fabric Weight Calculations
1. A nylon fabric 200 yards long was woven from a warp that was 220 yards long prior to
weaving. Calculate the percent contraction and the percent crimp.
2. A cotton fabric is 500 yards long. The nished width is 40 inche

TE 302 Laboratory Experiment No. 7
Title: Weft Knitting Mechanisms
Objective:
To study a circular weft knit machine and determine needle movement, sinker movement and the production limitation of this machine.
Procedure:
1. Measure the needle and sinker m

TE 302 Laboratory Experiment No. 8
Title: Warp Knitting
Objective:
To measure the movement of the needles, the guide bars and the sinkers on a warp
knitting machine.
Procedure:
1. Determine how the movement of the needles, guide bars and sinkers on the Ka

TE 302 Laboratory No. 5
Warren J. Jasper
Title: Error Analysis
Reference: Probability, Random Variables, and Stochastic Processes, Athanasios Papoulis, McGraw Hill Book Company, 1965
When performing experiments and inferring relationships from the data, i

TE 302 Laboratory Experiment No. 4
Title: Machine Variables Controlling Package Density and Tension in Winding
Objectives:
1. To determine the eect of winding tension on package density.
2. To measure the eect of winding speed on package density.
Procedur

TE 302 Laboratory Experiment No. 1
Title: Introduction to computing at the College of Textiles
Objectives:
1. To better understand the design of a satin/sateen weave
2. To reinforce prociency and uency in Excel/VBA
Problem:
NOTE: This is not a group proje

TE 302 Laboratory Experiment No. 2
Title: Analysis of a Simple Woven Fabric Structure
Objectives:
To instruct students in the simple analysis of a given fabric sample of unknown
structural particulars and qualities. Detailed analysis of a wide variety of

TE 302 Laboratory Experiment No. 3
Title: Analysis of a Knitted Fabric
Objectives:
To instruct students in the simple analysis of a given fabric sample of unknown
structural particulars and qualities. Detailed analysis of a wide variety of fabrics is the

TE 302: Basic Weave Characteristics
Plain Weave Characteristics
1. Adjacent ends weave opposite of each other.
2. Repeats on two ends and two picks.
3. Highest number of interlacings possible.
4. Produces firmest fabrics.
5. Great resistance to wear.
6. O