Feed ratio | Main feed (rear) Differential feed (front) | Effect | Application |
0.7 – 1.0 |
| Material is pulled | Prevents thin mate- |
| tight. | rials from puckering | |
|
|
1.0 | Without differential | Normal sewing | |
feed. | |||
|
|
| Material is gath- | Prevents stretch ma- | |
| terials from stretch- | ||
1.0 – 2.0 | ered or pushed | ||
ing or puckering | |||
| together. | ||
|
|
Velocidad de | Alimentador | Alimentador con | Efecto. | Uso. | |
alimentación | principal (detrás). | diferencial (delante). | |||
|
| ||||
0,7 – 1,0 |
|
| El tejido se estira | Impide que los teji- | |
|
| dos finos frunzan. | |||
|
|
|
|
1,0 | Sin alimentación con | Costura normal. | |
diferencial. | |||
|
|
| El tejido se contrae | Impide que los teji- | |
| dos extensibles se | ||
1,0 – 2,0 | o se junta. | ||
estiren o frunzan. | |||
|
|
12
CONTENTS | TABLE OF |
Chapter 1 | |
Chapter 2 | |
Chapter 3 | |
Chapter 4 | |
Chapter 5 | |
Chapter 6 | |
Chapter 7 | |
Chapter 8 | |
Chapter 9 | |
10 | Chapter |
11 | Chapter |
12 | Chapter |
13 | Chapter |
14 | Chapter |
15 | Chapter |
16 | Chapter |
17 | Chapter |
18 | Chapter |
