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is it necessary to straighten yarn
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[To keep ink from fading on felt, use high-quality, permanent ink designed for fabric use. Before application, pre-treat the felt with a fabric stabilizer to prevent ink spread. After applying ink, heat-setting can help fix the ink onto the felt, making it more resistant to fading. Avoid direct sunlight exposure, as UV rays can accelerate the fading process. For added protection, applying a clear UV-resistant spray designed for fabric can further enhance the ink's longevity. Regular handling can also cause wear, so limit direct contact as much as possible. By following these steps, you'll significantly reduce the chances of your inked designs on felt from fading, preserving their vibrancy and detail for a longer time.]
True blue pigments are rare and prized in both natural and synthetic forms. Historically, lapis lazuli, a semi-precious stone, was ground into a fine powder to produce ultramarine, the most celebrated true blue pigment known for its brilliance and depth of color. Today, synthetic paths have led to the creation of various true blue pigments, such as Phthalo Blue, a synthetic pigment discovered in the 20th century, known for its strong staining power and transparency. These innovations provide artists and industries with stable, vivid blue colors that maintain their integrity over time, unlike earlier blues that could fade or alter with exposure to elements.
Hydrochromic ink is a type of smart material that changes color when it comes into contact with water. This color change happens because the chemical structure of the hydrochromic ink molecules alters upon absorption of water. Typically, in its dry state, the ink might be invisible or one color, and when water interacts with it, the molecular structure rearrangement allows it to absorb and reflect light differently, thus changing its color. This technology is used in various applications, from novelty items like umbrellas and raincoats that change color in the rain, to safety labels on products to indicate water exposure, and even in educational tools to demonstrate chemical reactions. The profound aspect of hydrochromic inks lies in their capacity to provide immediate visual feedback in the presence of moisture, making them an invaluable tool in both practical and innovative applications.
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