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无纺布应用和制造工艺 中文版
Nonwoven
Applications Processes
无纺布应用和制造工艺
Product Micrographs
Components Technology
Liner Spunbond
SMS
Flap/Spacer
NBL
Stretch Ear
Surge TABCW
PUB
Fastening
Outcover SFL
Side panel
SBL
(Waist Elastics)
SMS
Gowns
Drapes SFL
Textiles vs Nonwovens
纺织品与无纺布
TRADITIONAL TEXTILES:
1) FIBERS TWISTED (SPUN) INTO
YARNS
2) YARNS ARE MECHANICALLY
INTERTWINED TO PRODUCE A SHEET
WITH INHERENT STRENGTH
NONWOVENS:
1) FIBERS ARE FORMED DIRECTLY INTO
SHEETS
2)SHEETS ARE BONDED TO PROVIDE
STRENGTH
WEB FORMATION
A. MECHANICALLY FORMED
- CARDING (COMBING STAPLE FIBERS)
B. WET - FORMED
- USES PAPER MAKING TECHNOLOGY
C. AIR - FORMED
-
D. DIRECTLY SPUN
- SINGLE STEP FIBER WEB FORMING
- CONTINUOUS FILAMENTS FO THERMOPLASTIC
POLYMERS
WEB BONDING
A. NEEDLE PUNCHING
- ENTANGLE FIBERS TOGETHER
C. SPUNLACED (HYDRO-ENTANGLING)
- WATER JETS
D. LATEX OR RESIN BONDING
E. THERMAL BONDING
- REQUIRES THERMALPLASTIC COMPONENT
NONWOVEN PROCESSES
Why Polyolefin ?
1- Density (0.9 g/cc)
2- Hygiene and Dryness
3-
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