Hear is a basic information about this two fiber. Hopefully it helps.
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Language: en
Added: Dec 24, 2018
Slides: 17 pages
Slide Content
Welcome
Silk Ramie
About silk Silk is a natural protein fibre. The protein fibre of silk is composed mainly of fibroin and is produced by certain insect larvae to form cocoons.The protein fibre of silk is composed mainly of fibroin and is produced by certain insect larvae to form cocoons.
History of Silk The production of silk originates in China in the Neolithic. Silk remained confined to China until the half of the 1st millennium BC. China maintained its virtual monopoly over silk production for another thousand years. Silk cultivation spread to Japan around 300 AD, and, by 522 AD.
Production process of silk Step 1: Raising silkworms & harvesting cocoons. Step 2: Thread extraction: Step 3: Dyeing. Step 4: Spinning. Step 5: yarn.
Properties of silk low density makes for light and comfortable clothing. high resistance to deformation. good insulation properties / warm in winter, cool in summer. strongest natural fiber available. shimmers and shines. good affinity to dye. leaving aside the rather demanding care, silk is one of the most comfortable fiber fabrics in the world.
Silk Advantages & Disadvantages Advantage Disadvantage Soft Expensive Drapes well Needs special care, dry cleaning Dyes and prints well Stains with water Very strong Yellows with age Lightweight Weakened by perspiration, sun, soap Resists soil, mildew, and moths Attacked by insects, silverfish Comfortable Absorbent
Use of silk
Bangladesh silk Rajshahi silk: Rajshahi silk is the name given to the silk products produced in Rajshahi , Bangladesh. It is famous because it is a high quality fabric used for clothing, especially for saris .
ramie Ramie is a flowering plant native to eastern Asia. It has smaller leaves which are green on the underside, and it appears to be better suited to tropical conditions.
About ramie Ramie fiber is known especially for its ability to hold shape, reduce wrinkling, and introduce a silky lustre to the fabric appearance. It is not as durable as other fibers , so is usually used as a blend with other fibers such as cotton or wool.
History of ramie Ramie has been grown in China for many centuries, and farmers in ancient China are known to have used the fiber to weave clothing. Ramie was used to produce an open-weave fabric called mechera , used for shirts and dressing gowns suitable for warm climates.
production process of ramie fabric
Advantages and Disadvantages of Ramie Advantages Disadvantages 1. Can be bleached. 1. Low in elasticity 2. Resistant to bacteria, mildew and insect attack. 2. Lacks resiliency. 3. Extremely absorbent. 3. Low abrasion resistance. 4. Dyes fairly easy. 4. Wrinkles easily. 5. Increases in strength when wet. 5. Stiff and brittle. 6. Withstands high water temperatures during laundering. 7. Smooth lustrous appearance improves with washing. 8. Keeps its shape and does not shrink.
Properties of Ramie Fiber Ramie is one of the strongest natural fibers . It is better strength when wet. It is similar to linen. It is not durable as other fibers , and so is usually used as a blend with other fibers such as cotton or wool. It is known especially for its ability to hold shape, reduce wrinkling, and introduce a silky lustre to the fabric appearance.
Uses of ramie favric Ramie is used in fabrics resembling linen, such as apparel fabrics for shirts and shorts, tablecloths, napkins and handkerchiefs. It is often found as a blend with cotton in knit sweaters. Ramie is also used in fishnets, canvas, upholstery fabrics, straw hats and fire hose.