Role of Fiber Finish in the Conversion of Fiber to Nonwovens — Part 1: Need for an Unconventional Method to Evaluate Finish Performance as a Mechanical Process Aid
Free accessOtherFirst published online December, 2001
Role of Fiber Finish in the Conversion of Fiber to Nonwovens — Part 1: Need for an Unconventional Method to Evaluate Finish Performance as a Mechanical Process Aid
The processing of fibers in a free, non-bound state gives rise to a range of frictional behavior for a given process. The basic laws of fiber friction are reviewed. The finish treatment to the fibers mainly act as a lubricant and anti static agent. A critical review of the requirements of the finish treatment and the methods used to evaluate fiber friction and static charge generation are presented. The requirements of the finish treatment with respect to carding and needlepunching are also discussed. The ineffectiveness of conventional methods to evaluate performance of finish in such process and the need to measure performance of finish and optimize it for each of these processes is highlighted. Methods to evaluate the finish performance in carding and needlepunching will be presented in Parts 2 and 3.
References
1.
AATCC Test Method, “Electrostatic Clinging of Fabrics: Fabric to Metal Test,” AATCC Technical Manual, 115–1995 (1998)
2.
AllenC., Cotton Inc, Personal Communication
3.
BasuS.C., HamzaA.A., SikorskiJ., “The Friction of Cotton Fibers,” J. Text. Inst., #2/3, p68 (1978)
4.
BowdenF.P., YoungJ. E., “Friction of Clean Metals and the Influence of Adsorbed Films,” Proc. Roy. Soc. (London), A208:444 (1951)
5.
BroughtonJ., R.M., El MogahzyY.E., “The Measurment of Fiber Friction and its Importance in Manufacturing Cotton Nonwovens,” TAPPI Proceedings, Nonwovens Conference, p 33–39 (1992)
6.
BroughtonR.M., El MoghazyY.E., “The Measurement and Importance of Cotton Fiber Friction,” Paper presented at the 1992 Beltwide Cotton Conference, Nashville, TN (1992)
GralenN., and LindbergJ., “Measurement of Friction Between Single Fibers, Part II: Frictional Properties of Wool Fibers Measured by the Fiber-Twist Method,” Textile Res. J., 18, p287–301 (1948)
10.
GrossbergP., PlateD.E.A., “Capstan Friction for Polymer Monofilaments With Rigidity,” J. Text. Inst., p268–283 (1969)
11.
HayekM., and ChromeyF.C., “The Measurement of Static Electricity on Fabrics,” Am. Dyestuff Rep., 40:164 (1951)
12.
HorensteinMark N., “Measuring Surface Charge with a Noncontacting Voltmeter,” IEEE Trans, Power Apparutus and Syst., p 1811–1668 (1993)
13.
HowellH.G., “The Friction of a Fiber Round a Cylinder and its Dependence upon Cylinder Radius,” J. Textile Inst.45, T575–579 (1954)
14.
HowellH.G., MazurJ., “Amontons Law and Fiber Friction,” J. Textile Inst., T59–T69 (1953)
15.
LordE., “Frictional Forces Between Fringes of Fibers,” J. of Textile Institutep41–59 (1955)
16.
LyneD.G., “The Dynamic Friction Between Cellulose Acetate Yarn and a Cylindrical Metal Surface,” J. Text. Inst., 46:P112 (1955)
17.
MoghazyEl, YehiaE., GuptaS.B., “Friction in Fibrous Materials. Part I: Structural Model,” Textile Research Journal61(9), p547–555 (1991)
18.
MoghazyEl, YehiaE., GuptaS.B., “Friction in Fibrous Materials. Part II: Experimental Study of the Effects of Structural and Morphological Factors,” Textile Research Journal63(4), p219–230 (1993)
ProffittT.J., PattersonH.T., “Oleochemical Surfactants and Lubricants in the Textile Industry,” JAOCS, Vol.65 No.10 (Oct 1988)
21.
RobinsM.M., RennellR.W., ArnellR.D., “The Friction of Polyester Staple Fibers: The Effect of Speed, Processing, Spin Finish, Humidit and Counter-surface Roughness,” J. Text. Inst., 1: p126–139 (1988)
22.
RossStan, “Important Properties of Fibers that are affected by Finish,” NCRC Short Course on Fiber Finish, Feb, (1998)
23.
RossS., “Important Properties of Fibers that are affected by Finish,” NRCRC Short-course (1998)
24.
Rothschild Messinstrumente, Zurich. F-Meter R-1188, Electronic Instrument for Automatic Measurement of the Friction Coefficient, Lawson-Hemphill Sales, Inc., Spartanburg, SC (1995)
25.
ScardinoF.L., FrankK.K., WilliamsP.M., “Characterization of the Cohesion of Carded Fiberglass Webs,” TAPPI Proceedings, Nonwovens Conference, 169 (1987)
26.
ScardinoF.L., LyonsJ.W., “Influence of Fiber Geometry on the Mechanical Properties of Assemblies During Processing,” Textile Res. J., Vo. 40, No.6, p559–570 (1970)
27.
SchickM. J., “Friction and Lubrication of Synthetic Fibers. Part IV: Effect of Fiber Material and Lubricant Viscosity and Concentration,” Text. Res. J., 43:342 (1973)
28.
SchickM.J., “Friction and Lubrication of Synthetic Fibers. Part V: Effect of Fiber Luster, Guide Material, Charge, and Critical Surface Tension on Fiber Friction,” Textile Res. J., 44:758, (1974)
29.
SchickM.J., “Friction and Lubrication of Sythetic Fibers. Part III: Effect of Guide Temperature, Loop Size, Pretension, Denier, and Moisture Regain of Fiber Friction,” Textile Res. J., 43:254 (1973)
30.
SladePhilip E., “Handbook of Fiber Finish Technology,” Marcel Dekker, Inc.New York (1998)
31.
Specialities from ICI for Fiber Producers., Laboratory Test Methods for Fiber Finishes. Friction Test, ICI Americas, Wilmington, DE (1987)
WagnerJ.R., “Carding Nonwovens: A Quarter Century of Experience,” Nonwovens Conference (1995)
34.
WagnerJ.R., AhlesL.J., “The Effect of Fiber Finish and Needle Type on Needle Breakage and Compaction of Needle Punched Kevlar Aramid Fiber Nonwovens,” Nonwovens Conference (1987)
35.
WilkinsonP.R., “Static Electricity: Domestic and Commercial Implications in Textile Materials,” Modern Textiles, 51:35 (1970)
36.
WoodsonH.H. and MelcherJ.R., “Electromechanical Dynamics (Part II),” Wiley, New York, Section 7.0, p.355 (1968)
