PL8001 - WOVEN SACKS TECHNOLOGY (Syllabus) 2017-regulation Anna University

PL8001 - WOVEN SACKS TECHNOLOGY (Syllabus) 2017-regulation Anna University

PL8001

WOVEN SACKS TECHNOLOGY

 LPTC

3003

OBJECTIVES:
• To learn about the manufacturing process of weaving fabrics and its types • To learn about the testing and quality control of woven sacks

UNIT I

MATERIALS FOR FILAMENTS AND YARN

9

Materials for filaments/ Yarns- High Density Polyethylene (HDPE), Polypropylene (PP), Polyester- Process- Properties – Tenacity, Denier, Elongation at break, thermal shrinkage- Dimensional stability.

UNIT II

HYBRID YARNS

9

Hybrid Yarns For Thermoplastic Composites: Types of hybrid yarns. Manufacture of thermoplastic composites with hybrid yarns. Compaction and consolidation of hybrid yarns Hybrid yarn structure – composite property relations. Potential application areas of thermoplastic composites. Trends in thermoplastic composite applications


UNIT III

MANUFACTURING PROCESS OF WEAVING

9

Manufacturing process of weaving- Circular (Narrow width) Fabric, Wide Round Fabric, Flat Woven Fabric- Types of Weaving - Plain weave, Twill weave, Satin weave, Basket weave, Leno weave, Mock Leno weave- Properties and its applications

UNIT IV

TYPES OF WOVEN FABRICS

9

Types of woven fabrics – Laminated and unlaminated woven sacks- Sacks with and without liner- Classification of woven sacks- Perforated, Sand, Valve, Gusseted, Boxed, Air Stripe, BOPP coated bags, Flexible Intermediate Bulk Container (FIBC)- Properties and its application. Woven sacks for food grain packaging, Cement packing, Sugar packing, Flour packing.

UNIT V

TESTING OF WOVEN SACKS

9

Testing and Quality control of woven sacks- Dimension – inner and outer, ends & picks per decimeter, Mesh number, Breaking strength, Elongation at break, Bottom Seam strength, UV resistance- Ash content- Over all migration.

TOTAL : 45 PERIODS

OUTCOME:
• At the end of the course student will be able to know the weaving process and applications of filaments, yarns. Have clear idea about the testing and quality control of woven sacks as per Std.

TEXT BOOKS:
1. Plastics Testing Techniques – Vishu Shah.,1998.
2. Plastic Materials – Brydson.,1999.

REFERENCES:
1. Hand Book Of Packaging Technology- Eiri Board,2004.
2. ISI 14887 – Testing of HDPE woven sacks.

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