Which lipids are generally recommended for protecting natural fibers?

Vegetable oils are recommended for protecting natural fibers due to their ability to penetrate and nourish the fibers without causing damage. These oils, derived from plant sources, are typically less harsh than synthetic oils or grease-based lubricants, making them more compatible with natural materials. They help to maintain the flexibility and strength of the fibers, while also providing a degree of moisture resistance.

In contrast, grease-based lubricants may contain additives or compounds that can degrade natural fibers, while synthetic oils are often formulated for specific applications and may not be as suitable for the long-term care of natural materials. Glycerol, though beneficial for some uses, is not primarily recognized as a protective agent for natural fibers. Thus, vegetable oils stand out as the preferable choice for safeguarding the integrity and longevity of natural fibers.