Composition of Ordinary Polyester Fabric
Ordinary polyester fabric
is made from a synthetic polymer called polyethylene terephthalate (PET). The process of creating polyester fabric involves several steps, including:
Polymerization: PET is created through a chemical reaction between ethylene glycol and terephthalic acid. This process creates long chains of molecules that are then spun into fibers.
Spinning: The polymer chains are melted and extruded through tiny holes in a device called a spinneret. As the fibers emerge, they are cooled and solidified into long, thin strands.
Drawing: The fibers are then stretched to increase their strength and durability.
Weaving or Knitting: The fibers are then woven or knitted into a fabric, which can be further treated with various finishes such as softeners, wrinkle resistance, or dyeing to improve its performance and appearance.
The resulting polyester fabric is lightweight, strong, wrinkle-resistant, and durable. It is commonly used in clothing, bedding, and upholstery, as well as in industrial applications such as tire cords and conveyor belts.
100% ordinary polyester fabric can be used in a wide range of applications due to its versatile properties. Some common uses of 100% ordinary polyester fabric include:
Clothing: Polyester fabric is often used in the production of clothing items such as jackets, pants, shirts, skirts, and dresses. It is popular in sportswear due to its moisture-wicking properties.
Bedding: Polyester fabric is also used to make bed sheets, comforters, and pillowcases. It is easy to care for and can be washed and dried quickly.
Upholstery: Polyester fabric is commonly used in the production of furniture upholstery due to its durability and resistance to staining.
Outdoor gear: Polyester fabric is often used in outdoor gear such as tents, backpacks, and sleeping bags due to its lightweight and water-resistant properties.
Industrial applications: Polyester fabric is also used in industrial applications such as conveyor belts, tire cords, and insulation due to its strength and durability.
It is worth noting that there are many types of polyester fabrics with different textures, finishes, and properties, and their suitability for different applications may vary.
Process of Ordinary Polyester Dyeing Fabric
Polyester fabric is synthetic and non-porous, which makes it difficult to dye using traditional dyeing methods. However, with the development of specialized dyeing techniques, polyester can now be dyed in a variety of colors and shades. The process of dyeing polyester fabric involves the following steps:
Preparation: The polyester fabric is washed and cleaned to remove any dirt, oil, or other impurities that may interfere with the dyeing process.
Pre-treatment: The fabric is treated with a chemical solution, such as sodium hydroxide or sulfuric acid, to open up the pores in the polyester fibers and make them more receptive to dye.
Dyeing: The fabric is immersed in a hot dye bath containing the desired dye, typically a dispersed dye that is designed to bond with the polyester fibers. The fabric is agitated constantly to ensure the even distribution of the dye. The temperature, time, and pH level of the dye bath are carefully controlled to achieve the desired color and shade.
Post-treatment: After the dyeing process, the fabric is treated with a finishing agent to improve its colorfastness, prevent fading, and improve its feel and appearance.
Washing and drying: The fabric is washed and rinsed to remove any excess dye and finishing agent. It is then dried and finished, which may include ironing, steaming, or pressing.
It's worth noting that polyester fabric can also be dyed using sublimation, a process in which the dye is transferred to the fabric using heat and pressure. Sublimation dyeing is often used for polyester fabrics with intricate patterns or designs.