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- Short Cycle (Associate's Degree)
- Söke Vocational School - Textile Technology

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Person Responsible for Information Package

Ins. Saadet EGE

Yarn Irregularity Calculations

Course Code | : TTİ222 |

Course Type | : Area Elective |

Couse Group | : Short Cycle (Associate's Degree) |

Education Language | : Turkish |

Work Placement | : N/A |

Theory | : 2 |

Prt. | : 0 |

Credit | : 2 |

Lab | : 0 |

ECTS | : 3 |

Objectives of the Course

To understand the definition and importance of irregularity. To teach the interaction of fiber properties and yarn properties. To comprehend theoretical inequality equations. Comprehend the use of limit unevenness and irregularity index. To teach methods of unevenness measurement. To comprehend the interpretation of data obtained from unevenness measurement systems. To understand the reasons of periodic mass changes. Diagram and spectrogram to teach evaluation. To understand the methods of finding periodic sources of mass change. To provide recognition of various mechanical error sources in digram and spectrogram.

Course Content

Definition and importance of irregularity. Relationships between fiber and yarn properties. Theoretically descending of irregularity. Limit unevenness. Uniformity index value. liimite Separation of irregularity into components. Uniformity measurement methods. Investigation of capacitive and optical irregularity measurement methods. Information provided by devices of irregularity. Diagram and its importance. Spectrogram and its importance. Faultless and incorrect spectrogram analysis. Error sources and error detection. Mechanical errors and calculation methods. Shooting fluctuations and calculation methods. Investigation of the effects of periodic mass changes on the diagram and spectroscopy. Investigation of rare irregularities.

Name of Lecturer(s)

Learning Outcomes

1. | To comprehend the importance and importance of the uniform. |

2. | To be able to use theoretical uniformity equations. |

3. | To know the methods of unevenness measurement and to grasp the differences between them. |

4. | To analyze the data received from unevenness devices. |

5. | To determine the reasons and sources of periodic mass changes. |

Recommended or Required Reading

1. | USTA, Ismail; Uniformity Calculations, Lecture Notes, Marmara University, Faculty of Technology, Textile Engineering Department, Istanbul, 2012 |

Weekly Detailed Course Contents

Week 1 - Theoretical

General introduction. Definition and importance of irregularity. % U and% CV calculations

Week 2 - Theoretical

Causes of irregularity in yarns. Raw material properties. Yarn Properties. Machine parameters. - Raw material properties - Yarn properties - Machine properties

Week 3 - Theoretical

Theoretical irregularity analysis. Fiber fineness irregularity. Fiber length unevenness relationship. Yarn number irregularity.

Week 4 - Theoretical

Properties of% U and% CV. Additional irregularities.

Week 5 - Theoretical

Theoretical explanation and calculation of limit unevenness. Number and importance of fiber in cross section of yarns.

Week 6 - Theoretical

Uniformity index and its use. unevenness and theoretical calculation of blended yarns

Week 7 - Theoretical

Analysis of irregularity in components. Statistical analysis methods of measurement values

Week 8 - Theoretical

Midterm

Week 9 - Theoretical

Uniformity measurement methods. Capacitive methods and applications. Information provided by devices of irregularity.

Week 10 - Theoretical

Periodic irregularities and their causes. Ideal spectrograms. incorrect spectrograms.

Week 11 - Theoretical

Types of thread error. Mechanical errors. Shooting fluctuations.

Week 12 - Theoretical

Calculation of periodic mass changes. Calculation methods. Tachometer method. Sample calculations.

Week 13 - Theoretical

Machine kinematic schema using and calculations. Sample calculations.

Week 14 - Theoretical

Analysis of yarn periodic error sources in diagrams and spectrograms. error groupings

Assessment Methods and Criteria

Type of Assessment | Count | Percent |
---|---|---|

Midterm Examination | 1 | %40 |

Final Examination | 1 | %60 |

Workload Calculation

Activities | Count | Preparation | Time | Total Work Load (hours) |
---|---|---|---|---|

Lecture - Theory | 14 | 1 | 2 | 42 |

Assignment | 4 | 1 | 2 | 12 |

Midterm Examination | 1 | 10 | 1 | 11 |

Final Examination | 1 | 10 | 1 | 11 |

TOTAL WORKLOAD (hours) | 76 |

Contribution of Learning Outcomes to Programme Outcomes

PÇ-1 | PÇ-2 | PÇ-3 | PÇ-4 | PÇ-5 | PÇ-6 | PÇ-7 | PÇ-8 | PÇ-9 | PÇ-10 | PÇ-11 | PÇ-12 | PÇ-13 | PÇ-14 | PÇ-15 | PÇ-16 | PÇ-17 | PÇ-18 | PÇ-19 | PÇ-20 | |

OÇ-1 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 5 | 4 | 4 | 5 | 5 | ||||||||

OÇ-2 | 3 | 3 | 3 | 3 | 5 | 4 | 4 | 5 | 5 | |||||||||||

OÇ-3 | 5 | 4 | 4 | 5 | 5 | |||||||||||||||

OÇ-4 | 3 | 3 | 3 | 3 | 5 | 4 | 4 | 5 | 5 | |||||||||||

OÇ-5 | 3 | 3 | 3 | 3 | 5 | 4 | 5 | 4 | ||||||||||||

Person Responsible for Information Package

Ins. Saadet EGE

Adnan Menderes University - Information Package / Course Catalogue