SYLLABUS

TT 305 - INTRODUCTION TO NONWOVENS PROCESSES AND PRODUCTS

Instructor: Pamela Banks-LeeOffice Address: Room 3328

COT (Tel: 515-6581)Fax: (919) 515-6532Email: pam_banks-lee@ncsu.edu Office Hours: Thursday 10-12, or by appointment

Preq: MA 131 or 141, PY 211 or PY 205, TT 203 or (TMS 211 and TC 203)Coreq: TT 252

Student Learning OutcomesBy the end of this course, students will be able to:

1. Take higher-level courses in area of nonwoven manufacturing and product development.2. Describe the fundamentals of methods used in producing nonwoven fabrics 3. Discuss the material structure/property relationships for these materials.

Attendance Policy

Since you will not be attending class it is your responsibility to read your NCSU official e-mail for any announcement related to this class.

Students with Disabilities

Reasonable accommodations will be made for students with verifiable disabilities. In order to take advantage of available accommodations, students must register with Disability Services for Students at 1900 Student Health Center, Campus Box 7509, 515-7653. For more information on NC State’s policy on working with students with disabilities refer to the following websites.http://www.ncsu.edu/dss/ http://www.ncsu.edu/provost/hat/current/appendix/appen_k.html

Text Book and Price Purchase course pack from Century Store

Academic IntegrityStudents are required to follow the University Code of Honor/Integrity. Note that your signature on any test or assignment will be viewed as your indication that you have neither given nor received unauthorized assistance. Please check the University Policy at: http://www2.ncsu.edu/prr/student_services/student_conduct/POL445.00.1.htm

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Grading Policy

Item PointsMidterm Exam 30Final Exam 30Papers (1) 10Papers (2) 10Papers (3) 20

Letter grades will be assigned according to the following table:

Letter Grade

Points Letter Grade

Points

A+ 98-100

C+ 78-79

A 93-97 C 73-77A- 90-92 C- 70-72B+ 88-89 D+ 68-69B 83-87 D 63-67B- 80-82 D- 60-62

F < 60

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Descriptions of Papers

General

Papers should be between 5 and 10 pages, double spaced in 12 font. References should be cited within the body of the paper where applicable and there should be a full reference list at the end of the paper. You should have at least 4-5 references (not including class notes). Avoid the use of internet websites as references and above all else do not be tempted to submit website papers or major portions of papers from website materials. Though you have a choice of topics for papers 1 and 2, choose wisely because you must tie the 2 together in paper 3. Papers that do not follow these instructions will be penalized severely.

Paper 1

This paper should focus on a web laying technology (i.e., carding, wet laying, air laying or spun bonding) of your choice. You should look at some aspect of the process and its effect on web quality or web properties. Example Title: The Effect of Aspirator Type or Construction on Web Strength in Spunbonded Webs. (So 1) select a process –Spunbonding; 2) Select some aspect of the process – Aspirator Type; and 3) select a web property or quality- Web strength). Also, you may select multiple aspects of a process and or multiple web properties. Example:

TT 305 - INTRODUCTION TO NONWOVENS PROCESSES AND PRODUCTS

Series Lecture(s) Topic1 1 Introduction: Course Syllabus,

Contact information, Course format.2 2-3 Introduction : What are nonwovens,

Nonwoven markets3 4-6 Overview of nonwoven products4 6-8 Structure of Nonwovens: Fiber

orientation distribution, Mass nonuniformity

5 9-12 Web Formation Processes: Airlay, Carding, WetlayMid Term

6 13-14 Bonding Technologies: Chemical Bonding, Mechanical Bonding (Hydroentangling and Needle-Punching), Thermal Bonding

7 15-16 Spunbonding8 16-17 Meltblowing9 18-20 Compositie Nonwovens

Final Exam4

The Effect of Aspirator Type and and Air Temperature on Evenness and Strength of Spunbonded Webs.

Paper 2

This paper should focus on a web bonding technology of your choice (i.e., hydroentangling, needle punching, thermal bonding, ultrasonic bonding, chemical bonding, and meltblowing). You should look at some aspect of the process and its effect on web quality or web properties. Example Title: The Effect of Barb Type on Strength of Needle Punched Fabrics. (So 1) select a process –Needle Punching; 2) Select some aspect of the process – Barb Type; and 3) select a fabric property or quality- fabric strength).

Paper 3

In Paper 3 you should tie the web laying process and the bonding type you selected in papers 1 and 2 to applications and products. Example: The use of Needle Punched Spunbonded Fabrics in Geotextile applications. In your paper you must also address why your specific web laying process and bonding technique make materials with properties suitable for the application you have chosen. You may discuss several products associated with the application you have selected.

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