Rayon in the context of "Dry cleaning"

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⭐ Core Definition: Rayon

Rayon, also called viscose, is a semi-synthetic fiber made from natural sources of regenerated cellulose, such as wood and related agricultural products. It has the same molecular structure as cellulose. Many types and grades of rayon fibers and films exist. Some imitate the feel and texture of natural fibers such as silk, wool, cotton, and linen. The types that resemble silk are often called artificial silk. It can be woven or knit to make textiles for clothing and other purposes.

Rayon production involves solubilizing cellulose fibers. Three common methods are as follows:

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👉 Rayon in the context of Dry cleaning

Dry cleaning is any cleaning process for clothing and textiles using a solvent other than water. Clothes are instead soaked in a water-free liquid organic solvent (usually non-polar, as opposed to water which is a polar solvent) typically inside a specialised dry-cleaning machine. The most commonly used solvent is Perchloroethylene (known as "PCE" or "perc" for short), although other solvents such as hydrocarbon mixtures and decamethylcyclopentasiloxane are also used. Historical solvents include carbon tetrachloride, trichloroethylene, trichlorotrifluoroethane, trichloroethane and n-propyl bromide.

Most natural fibers can be washed in water but some synthetics (e.g., rayon) react poorly with water and should be dry cleaned if possible. If not, this could result in changes in texture, colour, strength, and shape. Additionally, certain specialty fabrics, including silk, acetate and rayon, may also benefit from dry cleaning to prevent damage.

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Rayon in the context of Felt

Felt is a textile that is produced by matting, condensing, and pressing fibers together. Felt can be made of natural fibers such as wool or animal fur, or from synthetic fibers such as petroleum-based acrylic or acrylonitrile or wood pulp–based rayon. Blended fibers are also common. Natural fiber felt has special properties that allow it to be used for a wide variety of purposes. It is "fire-retardant and self-extinguishing; it dampens vibration and absorbs sound; and it can hold large amounts of fluid without feeling wet..."

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Rayon in the context of Fiber crop

Fiber crops are field crops grown for their fibers, which are traditionally used to make paper, cloth, or rope.Fiber crops are characterized by having a large concentration of cellulose, which is what gives them their strength. The fibers may be chemically modified, like in viscose (used to make rayon and cellophane). In recent years, materials scientists have begun exploring further use of these fibers in composite materials. Due to cellulose being the main factor of a plant fiber's strength, this is what scientists are looking to manipulate to create different types of fibers.

Fiber crops are generally harvestable after a single growing season, as distinct from trees, which are typically grown for many years before being harvested for such materials as wood pulp fiber or lacebark. In specific circumstances, fiber crops can be superior to wood pulp fiber in terms of technical performance, environmental impact or cost.

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Rayon in the context of Cellulose

Cellulose is an organic compound with the formula (C
6
H
10
O
5
)
n
, a polysaccharide consisting of a linear chain of several hundred to many thousands of β(1→4) linked D-glucose units. Cellulose is an important structural component of the cell walls of green plants, many forms of algae, and the oomycetes. Some species of bacteria secrete it to form biofilms. Cellulose is the most abundant organic polymer on Earth. The cellulose content of cotton fibre is 90%, that of wood is 40–50%, and that of dried hemp is approximately 57%.

Cellulose is used mainly to produce paperboard and paper. Smaller quantities are converted into a wide variety of derivative products such as cellophane and rayon. Conversion of cellulose from energy crops into biofuels such as cellulosic ethanol is under development as a renewable fuel source. Cellulose for industrial use is mainly obtained from wood pulp and cotton. In addition, cellulose exhibits pronounced susceptibility to direct interactions with certain organic liquids, notably formamide, DMSO, and short-chain amines (methylamine, ethylamine), among other, are recognized as highly effective swelling agents.

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Rayon in the context of Permanent press

Wrinkle-resistant or permanent press or durable press is a finishing method for textiles that avoids creases and wrinkles and provides a better appearance for the articles. Most cellulosic fabrics and blends of cellulosic-rich fabrics tend to crease or wrinkle. A durable press finish makes them dimensionally stable and crease-free. The finishing includes chemical finishing as well as mechanical finishing. Wrinkle-resistant finishes were developed in the early 20th century as a way to deal with fabrics derived from cotton, rayon, and linen, which were found to wrinkle easily and retain the wrinkles. These treatments have a lasting effect on the fabric. Synthetics such as polyester, nylon, acrylic, and olefin have a natural resistance to wrinkles and a greater stability since they do not absorb water as efficiently.

These fabrics are textiles that have been treated to resist external stress and hold their shape. Clothing made from this fabric does not need to be ironed and may be sold as non-iron, no-iron, wash-and-wear, durable press, and easy care. While fabric cleaning and maintenance may be simplified, some wearers experience decreased comfort.

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Rayon in the context of Artificial silk

Artificial silk or art silk is any synthetic fiber which resembles silk, but typically costs less to produce. Frequently, the term artificial silk is just a synonym for rayon. When made out of bamboo viscose it is also sometimes called bamboo silk.

The first successful artificial silks were developed in the 1890s of cellulose fiber and marketed as art silk or viscose, a trade name for a specific manufacturer.

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Rayon in the context of Phyllostachys edulis

Phyllostachys edulis, the mōsō bamboo, or tortoise-shell bamboo, or mao zhu (Chinese: 毛竹; pinyin: máozhú), (Japanese: モウソウチク), (Chinese: 孟宗竹) is a temperate species of giant timber bamboo native to China and Taiwan and naturalised elsewhere, including Japan where it is widely distributed from south of Hokkaido to Kagoshima. The edulis part of the Latin name refers to its edible shoots. This bamboo can reach heights of up to 28 m (92 ft). This particular species of bamboo is the most common species used in the bamboo textile industry of China and other countries, for the production of rayon. Moso is less cold-hardy than many Phyllostachys, surviving at a reduced height down to −15 °C (5 °F).

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