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washing of silk fabric for people who using it.ppt
- 1. Silk By: Amy Curtis& Sarah Bennett
- 2. Production/Manufacturing/Processing Techniques • Sericulture ▫ Cultivationof cocoons for the filaments ▫ Best raw silk obtained from Bombyx Mori (moth) ▫ Silkworms hatched up to 3 times a year ▫ 350 to 400 eggs in lifetime ▫ Subject to hereditary infection, eggs destroyed which results in fine silk production ▫ Begin to shape into cocoons ▫ Substance solidifies and filament formed • Filature Operations ▫ Raw silk unwound from cocoons and collected into skeins in Filature Factories ▫ Cocoons sorted based on color, size, shape, and texture ▫ Hot and cold water so filament can be unwound ▫ “Reeling” is unwinding filament from the cocoon
- 3. Production/Manufacturing/Processing Techniques • Manufacturing ▫ Reeledsilk formed into silk yarn. “Throwing” ▫ Strands twisted and put through rollers ▫ “Degumming” Yarn washed with soap to bring out natural shine • Finishing ▫ Calendering and Cireing Enhance luster ▫ Singeing Smooth ▫ Steaming Raising pile weaves ▫ Pressing and Lustering Removes wrinkles ▫ Weighting Weight lost during demugging Dyeing process Crispness
- 4. Characteristics • It isversatile and very comfortable. • It absorbs moisture. • It is cool to wear in the summer yet warm to wear in winter. • It can be easily dyed. • It retains its shape and is relatively smooth. • It has a poor resistance to sunlight exposure. • It is the strongest natural fiber and is lustrous
- 5. Uses for theend fabrics • blouses • dresses • scarves • pants • ties • curtains • draperies • cushion covers • sofa covers
- 6. Advantages • Natural ProteinStructure ▫ Hypoallergenic fabric • All-climate fabric ▫ Warm and cozy in winter ▫ Cool in hot weather ▫ Natural temperature regulating properties ▫ Outperforms other fabrics in summer and winter • Not bulky • Highly absorbent ▫ Can absorb 30% its weight in moisture ▫ Will let skin breathe • Mixes well with animal and vegetable fibers • Smooth surface resists soil and odors • Wrinkle and tear resistant • Dries quickly • Strongest natural fiber • Strong like steel yarn in strength • Takes color well • Washes easily • Good for ▫ Spinning ▫ Weaving ▫ Knitting ▫ Sewing
- 7. Disadvantages • Expensive • Leaveswater spots • Yellows with age • Needs special care • Dry cleaning
- 8. Fiber Drape Abilities •Good Drape Properties ▫ Silk flexible enough ▫ Drapes well ▫ Tailors well ▫ Thin
- 9. Fiber Care • DryCleaned: make sure you tell them that it is made of silk • Hand wash: 1) Make sure you wash in cool water. 2) Use a small amount of soap or mild detergent to wash the silk. 3) After washing it, rinse in cold water. 4) Hang it or lay it flat in a shaded area to dry. 5) If pressing is needed, use an all cotton iron board cover, a low or moderate steam setting, and press on the wrong side of the fabric while ironing.
- 10. Quiz • Silk isgood for all EXCEPT… ▫ A. Spinning ▫ B. Layering ▫ C. Sewing ▫ D. Weaving • ___ and ____ use silk covers. • Silk can’t be dyed easily. ▫ True or False? • Silk is versatile and absorbent. ▫ True of False? • What is Degumming? • What are 3/5 steps for hand caring for silk?
- 11. References "sb117", Initials. (2010,July 11). Silk fiber | characteristics & uses of silk fibre & fabric in textile. Retrieved from http://articles.textileclass.com/silk-fiber-characteristics-uses- of-silk-fibre-fabric-in-textile/ Silk manufacturing process. (n.d.). Retrieved from http://www.teonline.com/knowledge-centre/silk-manufacturin-process.html Silk. (n.d.). Retrieved from http://www.fabrics.net/silk.asp Cherry, R. (2010). History of sericulture. Retrieved from http://www.insects.org/ced1/history-of-sericulture.html
Editor's Notes
- #2 Filature Operations The raw silk is unwound from cocoons and are collected into skeins in the factories known as Filature. Here the cocoons are sorted based on their color, size, shape and texture. Then they are immersed in hot and cold water to soften the sericin so that filament could be unwound into one continuous thread. The whole of the seracin is not removed at this stage as it protects the delicate filament in further operations. 'Reeling' is the process of unwinding the filament from the cocoon. Three to ten filaments are together reeled for producing the desired diameter of raw silk thread.
- #3 Finishing of Silk Fabrics Many finishing processes are applied to different silk fabrics in order to improve their appearance, durability and feel. Calendering and Cireing is done to enhance luster, singeing is done to make them smooth, and steaming is done for raising pile weaves. Pressing and lustering removes wrinkles from the finished fabric. It is done with heated rollers and then soaking in dilute acid to bring luster. One finish that is unique to silk fabric is 'Weighting'. The weight of silk is lost during the process of demugging. The manufacturer purchases silk by weight and to make up his loss, he does weighting of silk fabric with metallic substances such as stannic chloride, sodium phosphate, iron salt, logwood etc. Weighting is done during the dyeing process. Weighted silk is less compactly woven when compared to the unweighted silk and lesser silk is used in the fabric construction. Apart from lowering the cost of silk, weighting gives it crispness, luster and a firm feel.
- #6 Silk mixes well with other animal and vegetable fibers.
- #8 Drapes Property is Good: Silk fiber is flexible enough and if silk fiber is used to make Silk garment than the fabric drapes well and this is why it can be tailored well too.