Presentation about warp knitting Raschel Machine. This presentation includes the Features of Machine , Mechanism and applications.

1. Raschel Machine
TANJIR HASIB (39TH)
BANGLADESH UNIVERSITY OF
TEXTILES (BUTEX)
APPAREL ENGINEERING

2. CONTENTS
 INTRODUCTION
 MAIN PARTS
 Features
 Machine View
 Knitting Cycle
 Application

3. INTRODUCTION
 Raschel machines for producing stretch and non-stretch
sportswear, lingerie and tulle, as well as fine and coarse nets.
 Raschel knits do not stretch significantly and are often bulky;
consequently, they are often used as an unlined material for
coats, jackets, straight skirts and dresses. These fabrics can be
made out of conventional or novelty yarns which allows for
interesting textures and designs to be created.

4. Main Parts
1. Front Roller
2. Back Warp
3.Warp Tension
Roller
4.Knitting Elements
5.Fabric Take Up
Roller
6.Take Up Beam
7.Machine Bed
8.Main Eccentric
Shaft
knitting element
Drive

5. FEATURES
1. Raschel machines normally use latch needles and compound
needles also used.
2. The gauge is expressed in needles per 2 inches. The most
common gauges are 30,40, 56.
3. The chain links are numbered in even numbers 0, 2,4,6.
4. Raschel sinkers only perform the function of holding down the
loops while the needles rise.
5. The fabric is drawn downward from the needles almost parallel
to the needle bar at an angle of 120-160degrees by a series
of take down rollers.
6. The guide bar are threaded commencing with the needle bars.
7. The guide bars are numbered from the front of the machine.
8. In a raschel machine there is acommodation for at least 4,
32inch diameter beams or large number of small diameter
pattern beams.

6. Front view of Raschel Machine

7. Raschel M/c Knitting Cycle

8. Raschel Machine - Crosssectional View

13. Application
 Fishing nets,
 Protective net,,
 Purse net,
 Shading net
 Fence net/ Bird net
 Olive net,
 Garment net.

14. Application
Purse net Shade Net
Fishing Net Protective net

15. Bird net Olive Net
Garment Net Sports Net

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