Yarn Manufacturing Techniques - II
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Follow on Instagram for UpdatesYarn Manufacturing Techniques - II Syllabus — Unit-wise Content
The official GTU curriculum for Yarn Manufacturing Techniques - II (subject code BE04029021) as prescribed for Textile Tech. · Semester 4 divides the course into 3 units, covering 64 listed topics. The unit-wise breakdown below is read from the GTU syllabus document for this subject code, so you can check what the course actually covers before deciding which papers to attempt.
Download the official syllabus PDF (BE04029021)Unit 1 Draw Frame
- Design - Constructional features and working principles of draw frame
- Creel section: Purpose and different arrangement of cans in creel
- Drafting unit: Construction and working of roller drafting system
- characteristics, and maintenance of bottom and top rollers
- selection of top and bottom roller diameter
- top roller loading system
- generation of drafting irregularity (Drafting wave)
- Steps to avoid mass irregularity in sliver
- Construction and working of 3 over 3 roller drafting system
- 4 over 4 roller drafting system
- 4 over 3 roller drafting system
- Delivery section: Web condensation
- Package formation
- Machine defect: Roller eccentricity and roller slip
- Draw frame autoleveller: Types of autoleveller
- Classification of autoleveller
- use of autoleveller in draw frame
- Latest developments in draw frame
- Various defects in draw frame sliver its causes and remedies
- Production calculation
Unit 2 Comber
- Comber Requirements of the Card
- Draw frame etc. with respect to combing
- Preparation for combing/Comber lap preparation Conventional system and modern system
- Introduction and objects of combing process
- History of comber development
- Types of Application
- Types of Comber
- Passage of Material through Combing machine
- Sequence of operations in a Comber
- Important elements of Combing – Feed Roller
- Nipper Assembly
- Combing cylinder
- Top Comb etc, Piecing
- Take up of Web, Coiling the sliver
- Waste Removal etc
- Parameters influencing the combing operation
- Temperature and Humidity in Combing
- The influence of machine components and settings on combing
- Influence of the feed stock on combing
- The noil theory of Gegauff
- Common defects and their causes during the Combing process
- controlof Comber waste
- Modern Developments
- Calculations - % of comber noil
- comber production
Unit 3 Speed Frame
- Construction and working principle of speed frame
- can arrangement in creel
- Spindle arrangement
- Drafting unit: Elements of drafting unit- top and bottom roller
- Nose bar, cradle
- Spacer and condenser
- Top roller loading system
- Twisting: Requirement of twist
- amount of twist in roving
- twist insertion
- different types of flyers
- function of flyer top Program Name: Engineering Level: UG Branch: Textile Engineering Subject Code: BE04029021 Subject Name: Yarn Manufacturing Techniques - II and pressure arm
- Roving bobbin geometry
- Formation of roving bobbin
- Winding of roving: spindle lead and bobbin lead
- Bobbin building mechanism and its functions: To shift the belt on cone drums
- To shorten the lift and to reverse the direction of traverse
- Modern developments in speed frame
- Production calculation
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