Petrochemicals are the chemical products obtained from petroleum by refining. Some chemical compounds made from petroleum are also obtained from other fossil fuels, such as coal or natural gas, or renewable sources such as maize, palm fruit or sugar cane.
Polyethylene terephthalate (or poly(ethylene terephthalate), PET, PETE, or the obsolete PETP or PET-P), is the most common thermoplastic polymer resin of the polyester family and is used in fibres for clothing, containers for liquids and foods, and thermoforming for manufacturing, and in combination with glass fibre for engineering resins.
Although PET is used in several applications, as of 2022 only bottles are collected at a substantial scale. The main motivations have been either cost reduction or recycle content of retail goods. An increasing amount is recycled back into bottles, the rest goes into fibres, film, thermoformed packaging and strapping. After sorting, cleaning and grinding, 'bottle flake' is obtained, which is then processed by either:
Acrylic fibers are synthetic fibers made from a polymer (polyacrylonitrile) with an average molecular weight of ~100,000, about 1900 monomer units. For a fiber to be called "acrylic" in the US, the polymer must contain at least 85% acrylonitrile monomer. Typical comonomers are vinyl acetate or methyl acrylate. DuPont created the first acrylic fibers in 1941 and trademarked them under the name Orlon. It was first developed in the mid-1940s but was not produced in large quantities until the 1950s. Strong and warm, acrylic fiber is often used for sweaters and tracksuits and as linings for boots and gloves, as well as in furnishing fabrics and carpets. It is manufactured as a filament, then cut into short staple lengths similar to wool hairs, and spun into yarn.
Teijin Limited is a Japanese chemical, pharmaceutical and information technology company. Its main fields of operation are high-performance fibers such as aramid, carbon fibers & composites, healthcare, films, resin & plastic processing, polyester fibers, products converting and IT products.
Sailcloth is cloth used to make sails. It can be made of a variety of materials, including natural fibers such as flax, hemp, or cotton in various forms of sail canvas, and synthetic fibers such as nylon, polyester, aramids, and carbon fibers in various woven, spun, and molded textiles.
Polyester is a category of polymers that contain the ester functional group in every repeat unit of their main chain. As a specific material, it most commonly refers to a type called polyethylene terephthalate (PET). Polyesters include naturally occurring chemicals, such as in plants and insects, as well as synthetics such as polybutyrate. Natural polyesters and a few synthetic ones are biodegradable, but most synthetic polyesters are not. Synthetic polyesters are used extensively in clothing.
Textile recycling is the process of recovering fiber, yarn, or fabric and reprocessing the material into new, useful products. Textile waste is split into pre-consumer and post-consumer waste and is sorted into five different categories derived from a pyramid model. Textiles can be either reused or mechanically/chemically recycled.
Grasim Industries Limited is an Indian manufacturing company based in Mumbai. Since its inception in 1947 as a textile manufacturer, Grasim has diversified into textile raw materials like viscose staple fiber (VSF) and viscose filament yarn, chemicals and insulators, along with cement and financial services through its subsidiaries UltraTech Cement and Aditya Birla Capital respectively. The company is a part of the Aditya Birla Group.
A staple fiber is a textile fiber of discrete length. The opposite is a filament fiber, which comes in continuous lengths. Staple length is a characteristic fiber length of a sample of staple fibers. It is an essential criterion in yarn spinning, and aids in cohesion and twisting. Compared to synthetic fibers, natural fibers tend to have different and shorter lengths. The quality of natural fibers like cotton is categorized into staple length such as short, medium, long staple, and extra-long. Gossypium barbadense, one of several cotton species, produces extra-long staple fibers. The staple fibers may be obtained from natural and synthetic sources. In the case of synthetics and blends, the filament yarns are cut to a predetermined length.
Aditya Vikram Birla was an Indian industrialist. Born into one of the largest business families of India, he oversaw the diversification of his group into textiles, petrochemicals and telecommunications. He was one of the first Indian industrialists to expand abroad, setting up plants in Southeast Asia, the Philippines and Egypt. His net worth was estimated at £250 million by 1995. His death at the age of 51 left his young son Kumar Mangalam Birla in charge of his group of companies.
Cyclohexanedimethanol (CHDM) is a mixture of isomeric organic compounds with formula C6H10(CH2OH)2. It is a colorless low-melting solid used in the production of polyester resins. Commercial samples consist of a mixture of cis and trans isomers. It is a di-substituted derivative of cyclohexane and is classified as a diol, meaning that it has two OH functional groups. Commercial CHDM typically has a cis/trans ratio of 30:70.
Aloke Lohia is an Indian billionaire businessman, and the founder and CEO of Indorama Ventures.
Indorama Ventures (IVL) is a producer of intermediate petrochemicals industry, the world's largest producer of PET resins, and a manufacturer of wool yarns established by Aloke Lohia in Bangkok in 1994.
Sri Prakash Lohia is an Indian-born Indonesian billionaire businessman, and the founder and chairman of Indorama Corporation, a diversified petrochemical and textile company.
RadiciGroup is an Italian corporation with a network of production and sales sites located in Europe, North America, South America and Asia. RadiciGroup is one of the world’s leading producers of a wide range of chemical intermediates, polyamide polymers, engineering plastics, synthetic fibres and nonwovens.
The textile industry is the largest manufacturing industry in Pakistan and nearly 25 million people work in this industry. Pakistan is the eighth largest exporter of textile commodities in Asia. Textile sector contributes 8.5% to the GDP of Pakistan.
Mohan Lal Lohia was an Indian businessman and business magnate, who founded the Indorama Corporation and the Lohia Foundation.
The Lohia family is a business family of Indian origin, doing business in the textile and petrochemicals industries under the umbrella corporate name Indorama. They own Indonesia/Singapore-based Indorama Corporation and Thailand-based Indorama Ventures, and were ranked by Forbes as the 29th richest family in Asia in 2017.
A blend is a mixture of two or more fibers. In yarn spinning, different compositions, lengths, diameters, or colors may be combined to create a blend. Blended textiles are fabrics or yarns produced with a combination of two or more types of different fibers, or yarns to obtain desired traits and aesthetics. Blending is possible at various stages of textile manufacturing. The term, blend, refers to spun fibers or a fabric composed of such fibers. There are several synonymous terms: a combination yarn is made up of two strands of different fibers twisted together to form a ply; a mixture or mixed cloth refers to blended cloths in which different types of yarns are used in warp and weft sides.
