Description

PP Spunbond 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