Posts
Problems Associated With Man-Made Fibers and Their Methods of Rectification
Mufaddal Bagwala
Dept. of Textile Technology
Shri Vaishnav Institute of Technlogy and Science, Indore (M.P.), INDIA
Contact No. +919584406752
Shri Vaishnav Institute of Technlogy and Science, Indore (M.P.), INDIA
Contact No. +919584406752
Email id : muffigenius_786@yahoo.com
1. Generation of Static Charge :
Man-Made Fibers (MMFs) have very high electrical resistance, due to which when they are rubbed against each other during processing in spinning machineries; a very high static charge is generated among fiber fleece which causes leakage of static charge in air and increases the possibilities of fire hazards in the spinning mill.
 |
| Man-made Fibers |
Remedies:
- Use of electrostatic eliminators in the Textile Industries.
- Use of proper Antistatic agents during spinning and finishing treatments of fabrics.
MMFs are having high molecular weight and proneness to static generation due to which the bailing up of fiber ends on the surface of fabrics can be easily occurred. This gives unpleasant wearing comfort and also fabric lusture decreases.
Remedies:
- Singeing of synthetic fabrics is done to reduce pilling. In this fabric is passed over a gas flame/ heated rollers to burn the protruding fibres.
MMFs have very low moisture regain due to which sweat and moisture locks between the body and the fabric giving wearing discomfort.
Remedies:
- Blending with natural fibres like cotton.
- Making fibres of Trilobal cross-section.
Fabrics made up from MMFs are generally of high thread setts (no. of ends/ picks per inch) due to which air permeability and breathability of fabrics decreases which gives improper feel and heat retention during wearing.
Remedies:
- Texturizing of yarns made from MMFs can increase the bulk of yarn increasing breathability of fabric.
Due to more regular and circular cross-section of MMFs, the fibre reflects more light than natural fibres resulting in very high lusture of the fabric which is very unpleasant to see by others.
Remedies:
- Suitable Delustering agents like Titanium oxide (TiO2) are used during spinning of MMFs.
Synthetic fibres may give rough/ harsh feel, causing itches (reddening of skin) and making it unsuitable for fabrics like pyjamas, undergarments, etc.
Remedies:
- Use of proper Softening finishes on the fabric.
Fabrics made form MMFs can easily attract dirt and dust form environment due to static charge generation giving a fuzzy appearance to fabric.
Remedies:
- Use of proper soil resistant finishes on the fabric.
Nylon is said to be cool in winter and warm in summer because fibre have low heat retention. The body heat can not be stored between body and fabric due to absence of air pockets in the fabric.
Remedies:
- Fibres are made with hollow Cross-Section for better heat retention.
