![Differential Feed](/images/new-backgrounds/46996/46996121x1.webp)
Differential Feed
Differential feed on an overlock is a
Standard Feeding
The front and rear feed dogs work as a single unit. The fabric feeds in and out with the same ratio.
Positive Feeding
The looser and stretcher the fabric, the more the front part of the feed dog must feed in and the less the rear part of the feed dog must feed out. Waves are eliminated.
Negative Feeding
The front part of the feed dog feeds in less fabric than the rear part feeds out. The fabric is held taut by the feed dogs. Puckering is eliminated.
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