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  william jhone posted a موضوع in the forum جنرال لواء:

  Paper Dyes

  Paper dyes are substances used to impart color to paper. They are added to the paper-making process to achieve desired hues and shades. These dyes are often water-soluble or dispersible and are chosen based on their compatibility with the paper fibers...أكثر منPaper dyes are substances used to impart color to paper. They are added to the paper-making process to achieve desired hues and shades. These dyes are often water-soluble or dispersible and are chosen based on their compatibility with the paper fibers and the desired color intensity.Paper dyes can be categorized into two main types: direct dyes and vat dyes.Direct Dyes: These dyes are water-soluble and can directly interact with the cellulose fibers in paper. They are commonly used for dyeing paper due to their simplicity and ease of use. Direct dyes are available in a wide range of colors and shades.Vat Dyes: These dyes require a more complex dyeing process. They are not water-soluble in their initial form but need to be chemically reduced to a soluble form before being applied to paper. Vat dyes are known for their excellent color fastness properties, making them suitable for applications where the paper might be exposed to moisture, light, or other environmental factors.The use of paper dyes is not...  أقل

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