Subject Code & Name: TT25C04 – Technology of Weaving I
Regulation: R-2025
Semester: III (Third Semester)
Branch: B.Tech. Textile Technology (Textile) / B.Tech. Handloom and Textile Technology (Handloom)
Credits / L-T-P: 4 Credits | L-T-P: 3-0-2
Course Objectives
- This course introduces students to impart fundamental knowledge and practical skills in yarn winding, warping, sizing, and drawing-in processes used in textile manufacturing.
- The course emphasizes process control, fault analysis, machine mechanisms and productivity enhancement to ensure quality and efficiency in yarn preparation for weaving.
Full Unit-wise Syllabus
Unit I – Winding
Objectives of winding; principles of drum and precision winding machines; material passage in ordinary cone winding machine; tensioning devices - uniform build of yarn package - control of balloons; Yarn traverse - types of drums – half accelerated and fully accelerated drums; Classification of yarn faults and their removal; yarn clearing – mechanical, optical and electronic clearers; knotters and splicers, material passage and working principle of modern automatic cone winding machines and weft winding machines; winding calculations – production and efficiency in cone winding and pirn winding machines;
Practical: 1. Study of ordinary cone winding machine 2. Analysis of yarn faults 3. Control of production, package density, yarn faults in cone / cheese winding machine 4. Study of pirn winding machine 5. Study of automatic cone winding machines
Activities: comparison of salient features of conventional and automatic winding machine, solving of GATE questions.
Unit II – Process Control in Winding
Faults in cones/chesses - causes and remedies; modifications required for winding synthetic and blended yarns; winding for colouration; quality of knots and splices; winding performance; productivity; maintenance; quality control; material handling.
Activities: sketching of various knots and splices, preparation of maintenance schedule for winding machines, preparation of pictographs of yarn faults, solving of GATE questions.
Unit III – Warping
Objectives of warping - material flow in modern high speed beam warping machine; creels and tensioning devices used in warping machines; sectional warping machines – objectives and material flow in sectional warping machine; Defects in warp beams – causes and remedies; beam warping calculations – production and weight of warp beam; Sectional warping calculations -number of sections, number of patterns per section, width of warp and total number of ends in the warp.
Activities: specifications and salient features of conventional and modern warping machines, pattern preparation in sectional warping, solving of GATE questions.
Unit IV – Sizing
Sizing - objectives of sizing - sizing ingredients and recipe preparation for different types of fibres; size preparation equipment; sizing machines – material flow in multi cylinder sizing machine - size level, size viscosity, drying temperature, stretch and moisture controls in sizing; sizing filament yarns; concept of single end sizing and combined dyeing and sizing; energy conservation in sizing; sizing defects; sizing calculations – production, size pick up percentage, efficiency, sized yarn count and weight of sized warp.
Practical: 1. Study of warping machine 2. Study of sectional warping machine 3. Study of sizing machine
Activities: preparation and comparison of size paste for various yarns, sketching and naming the parts of modern sizing machines, solving of GATE questions.
Unit V – Process control in Warping and sizing
Process control in warping - production calculation, machine and labour productivity, hard waste, efficiency, production, creel capacity, number of back beams in warping; sectional warping - calculation – creel capacity; Control systems used in sizing machine
Activities: Tabulate the causes for warping and sizing defects, principles of control mechanism used in modern sizing machines, solving of GATE questions.
Unit VI – Drawing-in and denting
Drawing-in and denting operation - manual and automatic drawing- in, leasing, knotting and pinning machines; selection and care of reeds, healds and drop pins; control of cross ends and extra ends
Practical: Study of drawing – in, denting and tying
Activities: Sketching of various parts of drawing-in and denting machine, reed count calculations.
Course Outcomes (COs)
- CO1: Understand the principles, objectives machine mechanisms, and calculations involved in winding, warping, sizing, and drawing in processes.
- CO2: Apply winding, warping, sizing, and drawing in techniques to prepare yarns suitable for weaving operations and perform production calculations.
- CO3: Analyze yarn faults, process parameters machine performance, and quality control measures in yarn preparation processes.
- CO4: Evaluate process control systems productivity, maintenance practices, and defect remedial measures in winding warping, and sizing operations.
- CO5: Select and optimize suitable yarn preparation methods, machinery, and process parameters to enhance weaving efficiency, product quality, and sustainability.
Assessment Pattern (Quick Note)
- Weightage: Continuous Assessment 50% | End Semester Examinations 50%
Source: Official Anna University – B.Tech. Textile Technology R-2025 Curriculum
Last Updated: September 2026
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