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Micro fibre

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Micro fibre

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  1. MICRO FIBERS

  2. Prepared By : Prepared By : Mazadul Hasan sheshir ID: 2010000400008 13thBatch (session 2009-2013) Department : Wet Processing Technology Email: mazadulhasan@yahoo.com Blog : www. Textilelab.blogspot.com (visit) Southeast University Department Of Textile Engineering I/A 251,252 Tejgaon Dhaka Bangladesh ©right

  3. The name given to ultra-fine manufactured fibers that have a diameter size of less than 1.0 denier and the technology of developing these fibers. Micro fibers are one hundred times finer than a human hair, up to thirty times finer than cotton fiber, and forty times finer than wool. A single strand of micro fiber is approximately 1/20th the diameter of a strand of silk. There are 88 miles of microfiber in one square inch of cleaning cloth.

  4. Micro fibers Microfiber was introduced in 1986. Microfibers is a variety of polyester that has extremely thin filaments. As a synthetic it provides us with control over its supply. Microfibers is derived using technology and the result is to extrude extremely fine filaments (less than 1.0 denier) while maintaining all of the strength, uniformity and processing characteristics expected by textile manufacturers and consumers. 1. Microfiber as the sole constituent of a cloth will wear and shed fiber with use, so it is best utilized in combination with Nylon. 2. It is tough, resilient, and can be manufactured to extremely fine tolerances, many times thinner than other synthetics. 3. It is this strength, precision and absolute sheerness as well as its phenomenal absorbency that give rise to so many applications, including an amazing ability to clean and dry surfaces. 4. Microfiber yarns are now available for most major generic fibers. They can bring their outstanding performance to a wide variety of end uses.

  5. Microfibers Microfibers in textiles refer to sub-denier fiber (such as polyester drawn to 0.5 dn). Denier and Detex are two measurements of fiber yield based on weight and length. If the fiber density is known you also have a fiber diameter, otherwise it is simpler to measure diameters in micrometers. Microfibers in technical fibers refer to ultra fine fibers (glass or meltblown thermoplastics) often used in filtration. Newer fiber designs include extruding fiber that splits into multiple finer fibers. Most synthetic fibers are round in cross-section, but special designs can be hollow, oval, star-shaped or trilobal. The latter design provides more optically reflective properties. Synthetic textile fibers are often crimped to provide bulk in a woven, non woven or knitted structure. Fiber surfaces can also be dull or bright. Dull surfaces reflect more light while bright tends to transmit light and make the fiber more transparent. Very short and/or irregular fibers have been called fibrils. Natural cellulose, such as cotton or bleached kraft, show smaller fibrils jutting out and away from the main fiber structure.

  6. Micro fiber This is a type of polyester that have very thin strands, while retaining its strength. It was introduced in 1986, and can be used to do cloths and stuffs that are sheer, very strong, and very absorbent. These qualities do micro fibres very utile in cleansing and shining applications, as well as combining them with other synthetic and natural fibres to add its characteristics. Microfiber Microfiber is a fiber with less than 1 denier per filament. (Denier is a measure of linear density and is commonly used to describe the size of a fiber or filament. Nine thousand meters of a 1-denier fiber weigh one gram.) Fibers are combined to create yarns. Yarns are knitted or woven in a variety of constructions. While many microfibers are made of polyester, they can also be composed of polyamide or other polymers.

  7. History: Production of ultra-fine fibers (less than 0.7 denier) dates back to the late 1950s, using melt-blown spinning and flash spinning techniques. However, only fine staples of random length could be manufactured and very few applications could be found. Experiments to produce ultra-fine fibers of a continuous filament type were made subsequently, the most promising of which were run in Japan during the 1960s by Dr. Miyoshi Okamoto. Okamoto's discoveries, together with those of Dr. Toyohiko Hikota, resulted in many industrial applications. Among these was Ultrasuede, one of the first successful synthetic microfibers, which found its way onto the market in the 1970s. Microfibers were first publicized in the early 1990s in Sweden and saw success as a product in Europe over the course of the decade. In 2007, Rubbermaid began a line of microfiber products for American markets, the first major company to do so.

  8. Types of Microfiber: 1. Microfiber 2. Modacrylic 3. Nylon 4. Olefin 5. Polyester 6. Polyethylene 7. Spandex 8. Vinylon 9. Vinyon 10.Zylon

  9. Trade Names for Microfiber Fabrics: 1. Trevira Finesse (polyester) 2. Fortrel Microspun (polyester) 3. DuPont Micromattique (polyester) 4. Shingosen (polyester) 5. Supplex Microfiber (nylon) 6. Tactel Micro (nylon) 7. Silky Touch (nylon) 8. Microsupreme (acrylic)

  10. Names Used by Fabric Manufacturers •Logantex: Charisma--dress weight with suede-like finish Ultima--water repellent finish •Thompson of California: Moonstruck--soft sueded finish, silk-like Micromist--brushed finish Regal--dry hand •Springs Mills: Silkmore--sandwashed silk finish Stanza--water repellent microtwill Vanessa--reversible fabric for rainwear

  11. Microfiber Production: Micro fibers can be produced by bicomponent techniques in which the fibers are either caused to split apart, or one of the two components is dissolved or melted away. These techniques have long been known to be capable of producing much smaller fibers than with homo-polymer techniques. However, the equipment complexity, cost, and production rates have historically caused such fibers to be somewhat expensive. Such microfibers can now be produced at a cost comparable to conventional microfibers.

  12. Microfiber is constructed of a very thin filament that has been extruded with two synthetic polymers- polyester and nylon. Micro Fibre vs Cotton

  13. How does Microfiber work? Quality (cleaning) Microfiber is constructed of a very thin filament that has been extruded with two synthetic polymers - polyester and nylon (commercial nylon is also known as polyamide). After it's extruded, it's processed mechanically and chemically to be broken into finer parts. A quality Microfiber cloth will be at least 1/100th the diameter of a human hair. However this is not the case for most Microfiber cleaning cloths, in fact the average Microfiber cloth is only 1/6th of a human hair.

  14. Microfiber vs. Cotton: The actual process of using the microfiber mops is a huge improvement in and by itself over the conventional cotton mop process. Illustrates a snapshot comparison between handling microfiber and cotton loop mops. Here is how it works- 1. Roll up microfiber mops from end to end and place them standing up into the empty bucket (from an aerial view it would resemble a cinnamon bun or sandwich wrap). 2. Fill a clean mop bucket to the top of the microfiber mops with diluted cleaning solution (approx 1 gal depending on the capacity of the bucket). 3. Remove one mop, wring out the excess solution back into the bucket with a twist of the wrist. 4. Place the micro fiber mop flat on the floor with the Velcro side facing up. 5. Place the mop frame (head) directly onto the micro fiber mop. 6. Begin mopping desired floor area. 7. When finished, remove the soiled mop head and place in a linen bag for laundering. 8. Start the process over again. If more mops are needed, simply place them into the remaining clean solution. The advantages of this procedure over that of the cotton loop mop procedure include but are not limited to: 9. The amount of cleaning solution and water needed has been dramatically reduced.

  15. Characteristics of Micro Fibre • THEY ARE BREATHABLE FABRICS. • THEIR COMFORT IS SIMILAR TO NATURAL FIBERS. • THEY ARE SOFT. • THEY ARE VERY DURABLE. • THEY CAN BE EASILY MAINTAINED AND CARED FOR. • THEY RETAIN THEIR ORIGINAL SHAPE. • THEY ARE WINDPROOF AND WATER RESISTANT. • THEY HAVE GOOD MOISTURE WICKING ABILITY. • THEY HAVE EXCELLENT DRAPE. • THEY ARE LIGHT WEIGHT.

  16. Characteristics of Microfibers Microfiber fabrics have many qualities due to which they are preferred in many applications mostly for cleaning various surfaces. •They are breathable fabrics. •Their comfort is similar to natural fibers. •They are soft. •They are very durable. •They can be easily maintained and cared for. •They retain their original shape. •They are windproof and water resistant. •They have good moisture wicking ability. •They have excellent drape. •They are light weight. •They carry electrodynamic ability. •They have good filtering capabilities. •In spite of very fine quality, microfibers have exceptional strength.

  17. Characteristics of Microfibre: 1. They are breathable fabrics. 2. Their comfort is similar to natural fibers. 3. They are soft. 4. They are very durable. 5. They can be easily maintained and cared for. 6. They retain their original shape. 7. They are windproof and water resistant. 8. They have good moisture wicking ability. 9. They have excellent drape. 10.They are light weight.

  18. Applications of Microfiber Fabrics Developed in Sweden, microfiber fabrics were originally used as wiping cloths due to their many characteristics suitable for cleaning. Gradually, they started to be used as table cloths, blankets and other home furnishings. Due to their softer feel, good drapability, moisture wicking property, water repellent characteristics, they are used for making a variety of apparel, clothing & garments. They are widely used for making rain wear, sportswear, mens suits, kids clothing, inner wears, hosiery, evening wear, outerwear, sheeting, upholstery and many textile accessories.

  19. Cleaning The first and the foremost purpose for which microfibers are used, is for making wiping cloths and mops for cleaning. Those wipes used for consumer cleaning are generally made from split conjugated fibers of polyester and polyamide and those used for cleaning are made from 100% polyester microfiber commercial

  20. Clothing Due to microfiber's high absorption quality and moisture wicking ability, this fabric has become a popular choice for performance apparel and sports wear. It is fast replacing cotton fabrics in production of these specialty clothings. As microfiber wicks moisture away from the body, it keeps the wearer cool and dry

  21. Home Furnishings Microfiber fabric can be given textures like waffle texture, velour texture, etc. Waffle texture is used in blankets and bed coverings as the dimples created by the air pockets of this texture keep the user warm. Velour textured fabrics are very comfortable and soft that are increasingly being used by fashion designers for their clothing lines. Microfibers used in tablecloths and as upholstery are designed to be liquid and stain resistant. These fabrics show liquids in the form of bead on the surface until they are removed. Microfibers are also used in bath towels and other towels, especially those used for swimming pool purposes, as they allow very quick drying

  22. Other Textile uses: Other Textile uses: Microfibers used in tablecloths, furniture, and car interiors are designed to repel liquids and consequently are difficult to stain. • Microfiber tablecloths will bead liquids until they are removed and are sometimes advertised showing red wine on a white tablecloth that wipes clean with a paper towel. • This and the ability to mimic suede economically are common selling points for microfiber upholstery fabrics (e.g. for couches). • Microfibers are used in towels especially those to be used at swimming pools as even a small towel dries the body quickly. • They dry quickly and are less prone than cotton towels to become stale if not dried immediately. • Paradoxically, microfiber towels need to be soaked in water and pressed before use, as they would otherwise tablecloths do. • repel water as microfiber

  23. Uses of Microfiber: 1. It is ideal for stainless steel, counters, glass and porcelain. 2. In the kitchen: Stainless steel, ceramic stove tops, sinks, cabinets, granite counter tops, microwave ovens and more. 3. In the bathroom / laundry room: Tub, tiles, faucets, vanity tops and washing machine. 4. Around the house: windows, mirrors, glass, furniture etc. 5. It makes car washing much easier. It polishes the inside and outside of your vehicle, using a dampened microfiber cloth. Recommended in cleaning bikes, motorcycles and sports equipment too. 6. It is very good to use in cleaning computer screens, printers and scanners. 7. It is best to wipe up spilled liquid on floors.

  24. A Antibac ntibac Microfiber: Microfiber: A local University in Sweden—Lund University—decided to use the 100% Microfiber cloth—contaminate 10 surfaces with various superbugs—they used the same cloth to clean all 10 surfaces—found that ALL SURFACES were cleaned 99.9% with NO Cross Contamination between surfaces. Laboratory testing has proven that the Antibacterial Enviro Cloth is effective against – •E. coli •Klebsiella pneumoniae •Protues vulgaris •Salmonella typhi •Staphylocossus aureus •Streptococcus pyogenes •Candida albicans

  25. Polymer Blends: Polyblends, of polymer alloys, are defined as homogenous or heterogeneous mixtures of structurally different homopolymers or copolymers. The purpose of blending is either to improve processability or to obtain materials suitable for specific needs by tailoring one or more properties with minimum sacrifice in other properties. The behavior of polyblends may be expected to depend on the individual properties of the components in the blend, their relative proportions, degree of heterogeneity and the properties of the interface between the components. Several criteria are used to define the nature of polyblends: 1. Miscibility or compatibility 2. Phase diagrams 3. Relative moduli of the components 4. The classification also depends on the polyblend method of manufacture (melt, solution and emulsion mixing).

  26. Electrospinning of nanofiber-coated microfibers: Preparation of nanofiber-coated microfibers based on cellulose derivatives. The combination of nanofibers and microfibers gives high surface area and high porosity, a combination useful in many applications. The method used will be electrospinning. The proposed thesis work also comprises the characterisation of these nano/micro materials. The proposed content of the MSc thesis includes the following •Literature study on electrospinning of cellulose materials •Setting up and optimizing electrospinning process •Evaluation of processes and resulted materials The successful candidate will have background in physics and/or chemistry. The project is interdisciplinary and involves polymer chemistry and physics and will be run as a 60 credit points Master Thesis. The candidate will be working at Swerea IVF in Mölndal. Figure: SEM image of a nanofiber-coated microfiber

  27. Microfiber & Micro Touch Technology: Micro Touch Technology provides superior cleaning properties compared to most other microfiber cloths found on the market today. The Micro Touch Technology has been designed to lift oil and debris without smearing them around. This is achieved in the cloth manufacturing process. brushed microfibers provide additional cleaning properties because more fibers are exposed on the cloth face. The double-

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