The core challenge in dehairing black pigs lies in their dark color, thick tough hair roots, and typically thicker skin. Standard white pig dehairing processes often fail to achieve ideal results, leaving behind numerous black hair roots that severely affect product appearance and grade. The melanin in black pig hair causes different heat absorption patterns compared to white pig hair, with roots that are more firmly anchored. Traditional single scalding + dehairing methods easily result in “skin cooked but hair not removed” or leave noticeable black spots (hair roots) remaining.
Pre-loosening Treatment:
High-pressure spray loosening or scraping and coarse dehairing equipment reverse-rinses the pig carcass with 60-65℃ hot water, possibly equipped with rotating soft scrapers. This loosens and removes some long hair in advance, reducing subsequent scalding load and allowing hot water to penetrate more easily to the thick hair roots.
Deep Scalding:
A specialized scalding tank for black pigs features:
- Precise temperature control: Water stabilized at 62-64℃
- Extended scalding time: 6-8 minutes (adjusted by breed)
- Forced circulation: Powerful water flow ensures uniform temperature penetration to every hair root
Thoroughly softening the hair roots is the crucial step determining final hair removal rate (≥99.5%).
Powerful Hair Removal:
The Compact Multi-Hide Dehairing Machine for Cow, Pig, Sheep Skins | NPW Equipment can be configured specifically for black pigs, offering:
Enhanced power: Main motor power 20%-30% greater than standard models
Special hair removal fingers: Harder, wear-resistant rubber with denser arrangement
Adjustable speed and pressure: Intensity adjustable by pig size and breed
This equipment utilizes high-intensity mechanical friction to ensure softened black pig hair is removed cleanly from the root, achieving superior results that meet the highest quality standards for product appearance.