1Polyester - Polyfibre
Also known as POLYESTER, characterised by good air permeability and moisture transfer. There is also a strong resistance to acid and alkali, UV resistance. General 75D multiples of the fabric for polyester, such as 75D, 150D, 300D, 600D, 1200D, 1800D are polyester, fabric appearance than nylon dark, rough.
2Nylon --- Nylon
Also known as Nylon, polyamide fibre. Advantages are high strength, high abrasion resistance, high chemical resistance and good resistance to deformation, anti-aging. The disadvantage is that the feel is harder. The more famous ones are PERTEX, CORDURA. General 70D multiples of the fabric that is nylon, such as 70D, 210D, 420D, 840D, 1680D are nylon material, the gloss of the fabric is brighter, more slippery feel.
Generally speaking to do bags are nylon oxford cloth, nylon and polyester difference is the simplest burning method! Polyester smoke is very strong black smoke, nylon white smoke, there is to see the residue after burning, polyester pinch will be broken, nylon into plastic! The price of nylon is twice that of polyester.
Nylon; in the flame - curling, melting, burning slowly, producing small bubbles, the flame is very small, blue. Leaving the flame - stops burning and self-extinguishes. Burning odour - Amino or celery odour. Residue Characteristics - Ashes course hard and black in the form of round balls, not easily crushed with the fingers.
Polyester; close to the flame - softening, melting and curling, in the flame - melting, slow burning, yellow flame, blue flame edge, black smoke from the top of the flame, away from the flame - continue to burn, sometimes stop burning and self-extinguish. Burning odour - slightly aromatic or sweet. Characteristics of the residue - the ash is hard and black ball shape, not easy to crush with fingers.
The feel of polyester is also different. Polyester feel more brown, nylon feel very relatively smooth. You can also use your fingernail to scrape, fingernail scraping, there are obvious traces of tapestry, traces of inconspicuous nylon, but this method is not as intuitive as the first method easy to defend.
So, what are the differences in performance? Simply put, the performance of nylon is better than polyester, but the cost is higher than polyester. Nylon products are better than polyester products in terms of abrasion resistance, force, colour fastness, gloss, etc., and is not easy to produce dead wrinkles.
In the feel, nylon soft, polyester hard!
Polyester fabrics nylon fabrics the most important difference
1: nylon price is about 1 times higher than polyester
2: nylon is smoother and softer than polyester
3: abrasion resistance is not much difference
4:Nylon has a little elasticity. Polyester has no weakness
5:Nylon dyeing is more difficult than polyester dyeing.
01 polyester
(1) Mechanical properties Higher fracture strength, high elongation; high initial modulus; good elastic recovery; fabric stiffness, better abrasion resistance, better dimensional stability.
(2) Poor moisture absorption and dyeing W=%; can not use room temperature dyeing. Easily static electricity, poor stain resistance
(3) thermal properties high melting point 255-265 ° C; heat resistance and thermal stability is good
(4) Optical properties, good light resistance, second only to acrylics
(5) Acid and alkali resistance, not mouldy and not moth.
(6) Density: g/cm3
02 nylon (nylon)
(1) Mechanical properties; high breaking strength, flexural strength, elongation; lower initial modulus, large work of rupture; good elasticity, good abrasion resistance, fabric conformability and stiffness is poor.
(2) Moisture absorption and dyeing; W=%, better than polyester.
(3) Thermal properties; poor heat resistance; safe use temperature: below 93°C (nylon 6), below 130°C (nylon 66); melting point: 215°C (nylon 6), 250°C (nylon 66).
(4) Poor light resistance
(5) Resistant to alkali but not acid
(6) less density: g/cm3
Nylon is generally more elastic! A dyeing temperature of 100 degrees is sufficient! Dyed with neutral or acid dyes. Resistant to high than polyester is worse, but his strength to be good, good resistance to pilling! Burned with fire smoke colour white. Polyester burns up a stream of black smoke, and black ash followed by floating up. Dyeing temperature of 130 degrees (high temperature and pressure), hot melt method is generally baked below 200 degrees!
Polyester main feature of stability to be good, general clothing with a small amount of polyester can help anti-wrinkle, plastic, the disadvantage is prone to static electricity prone to pilling. But now improved polyester these shortcomings have improved.
How to differentiate on a daily basis?
Polyester imitation silk feeling strong, bright lustre, but not soft enough, with the effect of glitter, feel smooth, flat, good elasticity. Hand pinch the silk surface after loosening without obvious creases. Warp, weft water, not easy to tear.
Nylon luster is dull, the surface is like a layer of wax, the colour is not bright. Hand feel hard, hand pinch the fabric after loosening, there are creases, can slowly restore the original state. Warp and weft fastness.
Performance of nylon: strong, good abrasion resistance, ranking first among all fibres. Its abrasion resistance is 10 times that of cotton fibre, 10 times that of dry viscose fibre and 140 times that of wet fibre. Therefore, its durability is excellent. The elasticity and elastic recovery of nylon fabrics are excellent, but it is easy to deform under small external forces, so its fabrics are easy to become wrinkled in the process of wearing. Ventilation and air permeability is poor, easy to produce static electricity.
Nylon fabric moisture absorption in synthetic fibre fabrics are better varieties, so the clothing made of nylon than polyester clothing wear comfortable. Good moth and corrosion resistance. Heat and light resistance are not good enough, ironing temperature should be controlled below 140 ℃. In the process of wearing and using must pay attention to washing, maintenance conditions, so as not to damage the fabric. Nylon fabrics are light fabrics, in the synthetic fibre fabrics are only listed after polypropylene, acrylic fabrics, therefore, suitable for the production of mountaineering clothing, winter clothing and so on.
Polyester performance: high strength. The strength of short fibre is ~ dtex, high strength fibre is ~ dtex. due to low moisture absorption, its wet strength and dry strength is basically the same. Impact strength is 4 times higher than nylon and 20 times higher than viscose fibre. Good elasticity. The elasticity is close to that of wool, and it can recover almost completely when elongated by 5% to 6%. Wrinkle resistance exceeds that of other fibres, i.e. the fabric is not wrinkled and has good dimensional stability. The modulus of elasticity is 22～141cN/dtex, 2～3 times higher than nylon. Good water absorption. Good abrasiveness. Abrasion resistance is second only to nylon, which has the best abrasion resistance, and better than other natural fibres and synthetic fibres, and light resistance is second only to acrylic. Corrosion resistance. Resistant to bleach, oxidising agents, hydrocarbons, ketones, petroleum products and inorganic acids. Resistant to dilute alkali, not afraid of mould, but hot alkali can make it decompose. Poor colouring properties.