Non-Woven Fabric

Non-woven fabrics are broadly defines as sheet or web structure bonded together by entangling fiber Or filaments (and by performing films) mechanically, thermally or chemically. They are flat or tufted porous Sheets that are made directly from separate fiber, molten plastic or films. They are not made by weaving or knitting And do not required converting the fibers to yarn. Typically, a certain percentage of recycled fabrics vary based upon the strength Of material needed for the specific use. In addition, some nonwoven fabrics can be recycled use, given The proper treatment and facilities. For this reasons, some consider nonwoven a more ecological Fabrics for certain applications, especially in fields and industries where disposable or single use products Are important, such as hospitals, schools, nursing homes and luxury accommodations.

Nonwoven fabrics are engineered fabrics that may be a limited life, single-use fabrics or a very Durable fabrics. Nonwoven fabrics provide specific functions such as absorbency, liquid repellence , Stretch, softness, strength, flame redundancy, washability, cushioning, thermal insulation, acoustic Insulation, filtration, use as a bacterial barrier and sterility. These properties are often combined to create Fabrics suited for specific jobs, while achieving a good balance between products use-life and cost. They can mimic the appearance , texture and strength of a woven fabrics and can be as bulky as of products thickest paddings. In combination with other materials they provides a spectrum of products with diverse properties, and Are alone or as components of apparel, home furnishing care, engineering, industrial and consumer goods.

Process Component

  • Preparation of non woven materials.
  • Dosing unit for primary polymer, pigments and additives.
  • Extruder for melting and conveying the raw materials.
  • Melt filter
  • Spin pump to ensure a constant throughput to the spin unit
  • Sheet distributor or spinnernet
  • Filaments cooling
  • Discharge unit (Diffuser)
  • Web forming machine for discharge and conveyance of the filaments
  • Nonwoven bonding, preferable calendering
  • Winding

Process Description

Out of the silo the polymer is vacuumed dosing station on top of the extruder. Inside the extruder it becomes melted and homogenized. Passing a filter system and a spin pump, the melt is distributed by A coated hanger die, feeding the spinnernet which forms a curtain of filaments. The filaments are cooled By means of a stream of air in a blowing area, drawn By aerodynamic forces and then transported to the downstream discharge channel. Here the filaments are swirled around and then deposited on the wire mesh belt as a random nonwoven material. This is transferred to the heat bonding calendar which by heat and Pressure sets the physical properties as tensiles and elongation of the final product. After Calendaring the material is cooled water-cooled pair of rolls and then wound up.

Technical Specification

Weight(gsm) Thickness(mm) Tensile Strength(N/5 cm) Elongation % Tear Strength
MD CD MD CD MD CD
10 0.015 15 10 65 110 10 10
15 0.130 25 15 65 110 15 15
17 0.140 28 19 65 110 17 18
18 0.145 30 20 65 110 18 19
19 0.150 32 22 65 110 19 20
20 0.155 35 25 65 110 20 21
25 0.165 48 32 65 110 24 25
30 0.200 60 40 70 110 30 30
40 0.250 80 55 70 110 52 55
50 0.300 100 70 70 110 52 55
55 0.330 105 80 70 110 54 57
60 0.360 110 85 70 110 60 65
65 0.380 125 90 70 110 65 68
70 0.400 140 100 70 110 70 90
80 0.460 160 110 70 100 82 85
100 0.550 180 130 70 100 100 100
120 0.650 190 140 70 100 122 125
150 0.750 200 150 70 100 152 155

Packaging Specification

Test Unit Typical Value 10 GSM Typical Value 15 GSM Typical Value 17 GSM
width Meter/Inches Any Max 3.2 mtr (Max 126 in.) Any Max 3.2 mtr (Max 126 in.) Any Max 3.2 mtr (Max 126 in.)
Length Meter/Yard 2.5 to 4.0 2.5 to 4.0 2.5 to 4.0
Roll Diameter cms Inches Max 78.0 / Max 30.0 Max 80.0 / Max 3.5 Max 81.0 / Max 32.0
Wrapping Strong plastic Strong plastic Strong plastic

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