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Q.1044: How does blotting paper absorb ink/water?
Ans. Blotting papers are made of bleached rag/wood fibers. Wood/rag fibers are hydrophilic (water loving or water absorbing) in nature, Paper made from fibers are sized to resist water penetration. All unsized paper will absorb water. Blotting paper is not sized and made bulkier to provide capillary action for faster absorption of liquid. Good blotting paper have rag content to retain some strength after absorbing liquid.