Introduction
The count of yarn is very important for yarn manufacturing. It is a number that helps to identify whether the yarn is coarser or finer. Actually, it indicates the number of mass per unit length or length per unit mass. There are several count systems of yarn. The count system is divided into two systems.
1. Direct system 2. Indirect system.
In, the direct system, length is fixed and in the indirect system, weight is fixed.
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Objectives
- To know about the yarn count, TPI, CSP, and Breaking strength of the yarn.
- To know about the count data system.
- To know about how the measurement of yarn count is done and the properties of the count data system.
Working Principle
The count of yarn expresses the fineness or coarseness of yarn. The principle of an indirect system is-
Yarn count (Indirect) = (Sample length / Length unit) ✕ (Weight unit / Sample weight)
and CSP = (Count of yarn ✕ Breaking strength)
Apparatus
- Computer
- Yarn package
- Yarn guide
- Tensioner
- TPI tester
- Lea strength tester
- Wrap reel etc.
Data Collected
- Sample length: 120 yds
- Sample weight: 2.25 gm
- Count: 28.8
- Tarn tension: 85
- CSP: (28.8 ✕ 82) = 2361.6
- TPI: 20
Working Procedure
1st steps
Log in
↓
[Username - Administration, Password - Lab team, Mode - Process wise]
↓
ok
↓
System setting
↓
Mill Master
↓
Process data
↓
Add/ Edit [Count type: Nominal count, CSP, Breaking strength, TPI, Yarn type, Lot no, Frame no]
↓
Update
↓
Close
↓
Layout
2nd steps
Log in
↓
[User name - Company, Password-Lab team, Mode - Process wise]
↓
ok
↓
Process
↓
Count analysis
↓
Standard department - Ring frame
↓
New
↓
Choose test type - count type
↓
ok
↓
Edit
↓
Save
↓
Frame no entry
↓
ok
↓
Value [Observe no, Sample unit]
↓
Enter
↓
Report preview
↓
Export
↓
ok
Conclusion
In this experiment, we knew about the count data system and the procedure which is done by software. This will help us in our working field later.
Tags
Yarn Count