What's pickling, prickling and perforation in hides ?
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ChatGPT
May 16
Pickling, prickling, and perforation are all processes used in the tanning and preparation of hides and skins for use in leather production.
- Pickling: Pickling is the process of soaking the hides or skins in a solution of acid, salt, and water to lower the pH and remove any remaining hair, grease, and other impurities. This process helps to prepare the hides for the tanning process by opening up the fibers and allowing the tanning agents to penetrate more effectively.
- Prickling: Prickling is the process of using a machine or tool to prick small holes or perforations in the hides or skins. This helps to improve the penetration of tanning agents and chemicals during the tanning process, resulting in a more even and thorough tanning of the hide.
- Perforation: Perforation is the process of creating small holes or perforations in the hides or skins using a machine or tool. This can be done for decorative purposes, to create a specific pattern or design in the leather, or to improve the breathability and flexibility of the finished leather product. Perforation can also be used to help the leather stretch and conform to a specific shape or design.
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Google Gemini AI
May 16
Pickling:
- A chemical process used in tanning to prepare hides for further processing. - Involves immersing the hide in a solution of salt (usually sodium chloride) and acid (usually sulfuric acid), which helps to preserve the hide and remove impurities.
Prickling:
- A mechanical process that involves inserting small holes into the hide to create a more porous surface. - This allows the pickling solution to penetrate the hide more effectively and enhances the tanning process.
Perforation:
- A more advanced form of prickling that involves creating larger holes in the hide using specialized equipment. - Creates a more porous structure, allowing for deeper penetration of tanning agents and resulting in softer, more supple leather.