Complete the crossword given below with the help of clues. 1. A piece of wood is a composite, with long fibres of cellulose (a very complex form of starch) held together by a much weaker substance called lignin. R. Alagirusamy, A. Das, in Fibrous and Composite Materials for Civil Engineering Applications, 2011. 1/2 oz (15 grams) Iron per pound (500 grams) fibre. A substance made of more than one kind of material in which the different materials can be easily identified Colloid A mixture in which very small particles of one substances are distributed evenly throughout another substance the particles are generally larger than those in a solution and smaller than those in a suspension. It's not … Use to create lovely browns. In addition, paper and paperboard provide materials for hundreds of … Substance made up of large number of smaller molecules (7) 4. Other elements include fats, salts, and wax. For all F&F wet processing sites, prohibited or restricted substances which should not be intentionally used or detected have to be phased out in the whole production sites before 1st January 2020. A plastic used for making containers and carry bags (9) 3. contamination from non-deliberate use of the substance in question. Which set of substances is not used for making fibres? Papermaking, formation of a matted or felted sheet, usually of cellulose fibers, from water suspension on a wire screen. Cellulose is also found in cotton and linen, but it is the binding power of the lignin that makes a piece of timber much stronger than a bundle of cotton fibres. Never use self-softening, soap-based detergents that will affect the properties of the fibers. Aramid fibre is a chemical fibre in which the fibre-forming substance is a long-chain synthetic polyamide where at least 85% of the amide linkages are attached directly to … For cleaning cloths, washing after every use will prevent the dirt and debris collected by the cloth from scratching surfaces. Applications of mineral wool include thermal insulation (as both structural insulation and pipe insulation, though it is not as fire-resistant as high-temperature insulation wool), filtration, soundproofing, and hydroponic growth medium. Across. A Silk, chemicals B Yak hair, camel hair C Husk, bones D Flax, wool. Old nails boiled in water will also create an effective and free iron mordant. Substance used as synthetic wool (7) 2. Entry 6 to Annex XVII was last amended by Commission Regulation (EU) 2016/1005. The use of asbestos fibres and articles containing the fibres is prohibited by entry 6 in Annex XVII to the REACH Regulation. View All Answers (0) Submit Your Answers. Paper is the basic material used for written communication and the dissemination of information. Write an activity to show that synthetic fibres are stronger than the cotton fibres. Bleach or acidic cleaning solutions can damage the fibers. Chlorine bleach should not be used when washing microfiber. 2.2.2 Aramid filament yarns. Specifically, 6 types of asbestos are listed: chrysotile, crocidolite, amosite, anthophyllite, tremolite, and actinolite. To make one yard of silk material, about 3,000 cocoons are used. Sericulture Breeding silkworms This means that each time the mask is taken off, a new one must be used (for example, when working with carcinogenic substances). However, for special activities with toxic hazardous substances the masks can only be used once. The fiber, called fibroin, makes up between 75 and 90%, and sericin, the gum secreted by the caterpillar to glue the fiber into a cocoon, comprises about 10-25% of silk. 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