Is it better to choose a polyester umbrella fabric for your umbrella?
Keyword：Custom Umbrella Knowledge Addtime：2019-09-15
Characteristics of polyester fabricsHow do the varieties of polyester fabrics perform
Polyester fabric is a chemical fibre garment fabric that is very much used in everyday life. Its greatest advantage is that it is very wrinkle-resistant and conformable, making it suitable for jacket garments. In general, polyester fabrics are characterised by the following.
1. Polyester fabric has a high strength and elastic recovery capacity. Therefore, it is firm and durable, wrinkle-resistant and non-iron.
2. Polyester fabric is poor in moisture absorption, wearing a stuffy feeling, while easy to bring static electricity, stained with dust, affecting the beauty and comfort. However, it is very easy to dry after washing, and the wet strength hardly decreases, does not deform, has good washable performance.
3. Polyester is the best heat-resistant fabric in the combined fabric, with thermoplastic, can be made into pleated skirts, pleats lasting. At the same time, polyester fabrics are poorly resistant to fusion and are prone to forming holes when exposed to soot and sparks. Therefore, it should be worn to avoid contact with cigarette butts, sparks, etc.
4. Polyester fabric has better light resistance, except for poorer than acrylic, its sun resistance is better than natural fibre fabric. In particular, the sunlight resistance behind the glass is very good, almost on a par with acrylic.
5. Polyester fabric resistance to a variety of chemicals good performance. Acid and alkali are not very damaging to it, while not afraid of mould and insects.
Polyester fabric characteristics and performance
1. High strength. Short fiber strength of 2.6 ~ 5.7cN/dtex, high strength fiber for 5.6 ~ 8.0cN/dtex. because of low moisture absorption, its wet state strength and dry state strength is basically the same. Impact strength is 4 times higher than nylon and 20 times higher than viscose fibres.
2. Good elasticity. The elasticity is close to that of wool, and when elongated by 5% to 6%, it can almost fully recover. Wrinkle resistance more than other fibres, that is, the fabric does not crease, good dimensional stability. Modulus of elasticity is 22 ~ 141cN/dtex, 2 ~ 3 times higher than nylon.
3, heat resistance is good.
4, polyester surface is smooth, the internal molecules are closely arranged, the lack of hydrophilic structure between molecules, so the moisture reversion rate is very small, moisture absorption performance is poor.
5、Good abrasion resistance. Abrasion resistance is second only to the best abrasion resistance of nylon, better than other natural fibres and synthetic fibres.
6、Good light resistance. Light resistance is second only to acrylic.
7, corrosion resistance. Can resist bleach, oxidizing agents, hydrocarbons, ketones, petroleum products and inorganic acids. Resistant to dilute alkali, not afraid of mildew, but hot alkali can make it decompose.
8, dyeability is poor.
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The varieties of polyester fabrics are.
The broad varieties of polyester fabrics are staple fibres, stretched filaments, deformed filaments, decorative filaments, industrial filaments and various differentiated fibres.
Polyester staple fibres
1. Distinguished by physical properties: high-strength low-stretch, medium-strength medium-stretch, low-strength medium-stretch, high-modulus, high-strength high-modulus
2. Distinguished by post-processing requirements: cotton, wool, hemp, silk
3. Distinguished by application: garment, wadding, decoration, industry
4. Distinguished by function: cationic dyeable, moisture-absorbent, flame retardant, coloured, anti-pilling, anti-static
5. Distinguished by fibre cross-section: shaped yarn, hollow yarn.
Polyester filaments
1. Primary yarn: unstretched yarn (conventional spinning) (UDY), semi-preoriented yarn (medium speed spinning) (MOY), preoriented yarn (high speed spinning) (POY), highly oriented yarn (ultra-high speed spinning) (HOY)
2. Stretch yarn: Stretch yarn (low-speed stretch yarn) (DY), fully stretched yarn (spinning and stretching one-step method) (FDY), fully taken yarn (spinning one-step method) (FOY)
3. Deformed yarn: conventional deformed yarn (DY), stretch deformed yarn (DTY), air deformed yarn (ATY).
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