BHT403 Yarn Manufacture-II Syllabus
AKTU B.Tech · 4th Semester · Unit-wise syllabus (effective 2023-24)
BHT403 Yarn Manufacture-II (also written as KHT403) is a subject in Semester 4 of the AKTU B.Tech programme, prescribed by Dr. A.P.J. Abdul Kalam Technical University. It carries 3 credits with an L-T-P of 2-1-0. The syllabus is divided into 5 units: Speed Frame, Ring Frame, Ring Frame & Doubling, Rotor Spinning, Other Non-Conventional Spinning Systems and Outcomes. The complete unit-wise topic list, course outcomes and reference books are given below, taken from the official AKTU syllabus effective from 2023-24.
BHT403 Subject Details
| Subject Code | BHT403 / KHT403 |
|---|---|
| Subject Name | Yarn Manufacture-II |
| University | Dr. A.P.J. Abdul Kalam Technical University (AKTU) |
| Course | B.Tech (Bachelor of Technology) |
| Year / Semester | 2nd Year · 4th Semester |
| Credits | 3 |
| L-T-P | 2-1-0 |
| Total Units | 5 |
| Scheme Effective From | 2023-24 |
| Last Verified | 2026-08-15 |
BHT403 Yarn Manufacture-II Unit-Wise Syllabus
Official AKTU syllabus (effective 2023-24) — 5 units.
Unit 1: Speed Frame
Speed Frame: Objectives, functions of different machine components and high drafting system, roving twist in speed frame, winding principles and equations related to bobbin leading and flyer leading, Differential motions, building motion, cone profile, numerical problems, norms, performance assessment. drafting systems, common defects in roving packages, their causes and remedies, Developments in speed frame
Unit 2: Ring Frame
Ring Frame: Function and mode of operation of ring frame, role of drafting system, yarn guiding devices, forces acting between ring and traveler, yarn tension variation, balloon tension at maximum diameter, tasks of traveller, limiting speed, classification, form of traveler, traveler mass and material, different ring-traveller combinations, winding process, cop structure, spinning geometry, causes of end breaks, numerical problems, norms, performance assessment, Compact spinning- its types and advantages,
Unit 3: Ring Frame & Doubling
Ring Frame & Doubling: Concept of twist multiplier and yarn contraction, Factors affecting twist in a yarn, Building mechanism, Importance of spinning geometry and its elements, Control of yarn tension in ring frame, Mechanism of package formation. Limitation of ring spinning and factors responsible for loss in efficiency, Objective of doubling, Different systems of doubling, Study of ring doubler and TFO (Two for one) machine, Calculations related to yarn doubling, Fancy yarns, sewing threads, Core spun yarn and other specialty yarns, Objective of reeling, Types of reeling, Construction and working of reel, Yarn bundling.
Unit 4: Rotor Spinning
Rotor Spinning: Causes leading to the advent of unconventional systems of spinning; Basic Principle of Open-end Spinning systems; Variables for classification of unconventional methods of yarn production; Different Classifications of unconventional methods of yarn production; Principle involved in each group of classification. Introduction to Rotor Spinning Principle and Engineering design of various parts of rotor spinning, effect of rotor machine variables and fibre properties on the properties of rotor spun yarns. Limitations of rotor spinning, advances in rotor spinning.
Unit 5: Other Non-Conventional Spinning Systems · Outcomes
Other Non-Conventional Spinning Systems: Study of other spinning systems, viz. Friction and Air-jet etc. Mechanism of yarn formation, Structure, properties and end-uses of yarns spun on these systems, Various developments in these systems Electrostatic, air-vortex, Wrap, Twist less, Self-twist and other non-conventional methods of yarn Structure, properties and end-uses of these yarns, Potential and limitations of various spinning technologies. Outcomes: Upon completion of the course, the students will be able: - 1. To know about the working of Speed Frame Machine. 2. To know about the working of Ring Frame Machine. 3. To know about the Doubling process and working of TFO. 4. To know about working of Rotor spinning system. 5. To know about the working of Non- Conventional Spinning System.
BHT403 Course Outcomes
- Objective:
- 1. To enable the students to learn about the working of Speed Frame Machine.
- 2. To enable the students to know about the working of Ring Frame Machine.
- 3. To enable the students to know about the Doubling process and working of TFO.
- 4. To enable the students to know about working of Rotor spinning system.
- 5. To enable the students to know about the working of Non- Conventional Spinning System.
BHT403 Reference Books
- Klein W., “The Technology of Short-staple Spinning”, The Textile Institute, Manchester,1998
- Klein W., “A Practical Guide to Ring Spinning “, The Textile Institute, Manchester, 1999
- Klein W., “New Spinning Systems “, The Textile Institute, Manchester, 1993
Frequently Asked Questions about BHT403
What is the syllabus of BHT403 Yarn Manufacture-II?
The AKTU BHT403 Yarn Manufacture-II syllabus is divided into 5 units: Speed Frame; Ring Frame; Ring Frame & Doubling; Rotor Spinning; Other Non-Conventional Spinning Systems and Outcomes. The complete topic list for each unit is published on this page, taken from the official Dr. A.P.J. Abdul Kalam Technical University syllabus effective from 2023-24.
How many units are there in BHT403?
BHT403 Yarn Manufacture-II has 5 units in the AKTU syllabus, with an L-T-P (Lecture-Tutorial-Practical) structure of 2-1-0 and 3 credits.
Is BHT403 the same subject as KHT403?
Yes. AKTU renumbered its B.Tech subject codes from the 2022-23 session onwards, so the same subject appears as BHT403 and KHT403 depending on the scheme year. The syllabus content is the same.
Which semester is BHT403 taught in?
BHT403 Yarn Manufacture-II is taught in Semester 4 of the 2nd year of the AKTU B.Tech programme.
How many credits is BHT403 worth?
BHT403 Yarn Manufacture-II carries 3 credits in the AKTU evaluation scheme, with an L-T-P of 2-1-0.
Where can I download BHT403 previous year question papers?
AKTU B.Tech previous year question papers for every semester are available to download free on Ryzenstudy, with no login or registration required.
Is this the official AKTU syllabus for BHT403?
Yes. Every topic on this page is taken from the official Dr. A.P.J. Abdul Kalam Technical University syllabus document (AKTU B.Tech 2nd Year Handloom and Textile Technology Syllabus), effective from 2023-24. A direct link to the original AKTU PDF is provided at the top of this page. Last verified on 2026-08-15.
Related AKTU Syllabus
Source: Dr. A.P.J. Abdul Kalam Technical University official syllabus — AKTU B.Tech 2nd Year Handloom and Textile Technology Syllabus, effective from 2023-24. Ryzenstudy is not affiliated with AKTU. Content last verified on 2026-08-15.