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There are many varieties of nylon yarn, the most important of which are nylon 6 yarn and nylon 66 yarn. The outstanding feature of nylon yarn is its excellent wear resistance, ranking first among all fibers, 10 times that of cotton yarn.
There are many varieties of nylon yarn, the most important of which are nylon 6 yarn and nylon 66 yarn. The outstanding feature of nylon yarn is its excellent wear resistance, ranking first among all fibers, 10 times that of cotton yarn. The elasticity of nylon yarn is also very good, and it has good moth resistance and corrosion resistance. Nylon fabrics are light-weight fabrics, and are only listed after polypropylene and acrylic fabrics in synthetic fabrics.
Main advantage: Higher abrasion resistance than all other fibers. The best wear resistance. High elastic recovery rate.
Disadvantages: poor heat resistance and light resistance. The hold is also poor, not as stiff as polyester. Hygroscopicity and dyeability are poor.
In the textile field, nylon is mainly filament yarn, and a small amount of short fiber is mainly used for blending with wool, cotton or other chemical fibers, in order to improve the strength and wear resistance of the fabric. Part of nylon filament yarn is used for silk, gauze, lace, etc., and most of it is processed into elastic yarn, which is used to make socks, nylon shirts, gloves, etc. that are durable. Industrial nylon yarn accounts for more than 40%. Because nylon yarn has high strength, fatigue resistance, strong impact resistance and good affinity with rubber, it is suitable for making tire cords such as trucks and airplanes. Cotton fishing nets are 4 to 5 times longer. In addition, it is also used for cables, parachutes, soft ladders, conveyor belts and nylon ropes.
Nylon 6 is polycaprolactam, while nylon 66 is polyhexamethylene diamine adipic acid. Nylon 66 is 12% harder than nylon 6, and theoretically, the higher the hardness of nylon, the more brittle the fiber is, and the easier it is to break. But in the use of carpets this small difference is indistinguishable.
Among the family of polymers, Nylon is the most significant one that comes in 66 yarns. Nylon 66 yarn is a type of usually chosen alternative for industrial and clothing fabric sewing with thread features. Besides, Nylon 66 yarn is completely made of 2 monomers including 6 carbon atoms. The exciting features of Nylon 66 yarn are the high-heat absorption with tough material making.
Because of its high melting temperature, Nylon 66 yarn’s heat strength becomes more robust at 180 degrees Celsius. Since Nylon 66 has the most usage in industrial fabrics, the use of extreme heat turns any product into the final product one like the tire cord. Such heat helps to gain enough strength to bring changes in the manufacturing process.
From January to December 2019, China’s nylon 6 yarn with a twist of more than 50 turns per meter imported 1,530.8 tons, and the import value was US$7.01 million; from January to December 2019, China’s nylon 6 yarn with a twist of more than 50 turns per meter was exported. The quantity was 1377.8 tons, and the export value was 5.068 million US dollars.
As a nylon 6 yarn supplier, the nylon 6 yarn produced by our factory adopts advanced production equipment and strict production control to ensure that each product has a uniform twist, no oil stains, uniform molding, and no joints. Make sure every product delivered to customers is the best.
The main difference between nylon 66 yarn and nylon 6 yarn is shown in Table 1, and the difference in their performance is shown in Table 2.
Table 1 The main difference between nylon 66 yarn and nylon 6 yarn | ||
| Nylon 66 yarn | Nylon 6 yarn |
Chemical Name | Polyhexamethylene adipate | Polycaprolactam |
melting point | 250-265 ℃, slightly yellow at 150 ℃ | 215-220 ℃ |
Softening Point | 230℃ | 180℃ |
Acid resistance | Weak acid resistance, soluble and partially decomposed in concentrated hydrochloric acid, concentrated sulfuric acid, concentrated nitric acid | More than 16% concentrated hydrochloric acid, concentrated sulfuric acid, concentrated nitric acid can partially decompose and dissolve |
Alkali resistance | Good alkali resistance at room temperature, but alkali will damage fibers when it is higher than 60 degrees | In 50% caustic soda solution, 28% ammonia solution, the strength hardly decreases |
Solvent resistance | Insoluble in common solvents, but soluble in some acid compounds and 90% formic acid. | Insoluble in general solvents, but soluble in phenols (phenol, m-cresol, etc.), in concentrated hexanoic acid, swelling in glacial acetic acid, and heating can make it dissolve |
Mechanical properties | Good rigidity and better elastic modulus | Good toughness, impact resistance and dissolution resistance are better than nylon 66 yarn |
glass transition temperature | 50℃ | 48℃ |
application | Tire cord and hot water laundering fabrics, and woven fabrics | Fishing nets, tents, industrial fabrics and other civil and industrial fields |
Other properties | Difficult to dye, not easy to color; feel softer than nylon 6 yarn | Moisture absorption is stronger than nylon 66 yarn |
price | The price of nylon 66 yarn is more expensive than nylon 6 yarn |
Table 2 The difference between nylon 66 yarn and nylon 6 yarn in performance | ||
Nylon 66 yarn | Nylon 6 yarn | |
melting point | higher melting point | lower melting point |
crystal structure | The crystal structure is tight | The crystal structure is loose |
Degree of influence by ozone and nitrous oxide | Less affected by ozone and nitrous oxide | Easy to fade under the action of ozone and nitrous oxide |
dyeing | difficult to dye | easy to dye |
Fiber elasticity | Fibers are less elastic | Fiber elasticity is better |
feel | Feel dense | Soft to the touch |
Email: info@saludstyle.com
Tel: 0086-769- 81237896
Address: Kaijun Building, No.19 Juxiang 3rd Road, Dalang Town, Dongguan City, China
We are excited to announce that Salud Style will be exhibiting at the upcoming trade fair in Sao Paulo, Brazil from June 19-21, 2023. Come visit us at Booth J224-J225, Hall 5 at São Paulo Expo. We look forward to seeing you there!
Yarn Count Converter Using Guide
For example, if you want to convert “100 Denier” to other types of yarn count, there are three steps using this tool:
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