Use & storage

1.Different lot number and production date can not blend together before /confirm/iation. Spandex with the same lot number, similar size and nearly produced date is recommended.

2.It is necessary to keep temperature and moisture at stable levels in the whole process. The best temperature for workplace conditions is: 25 °C ± 3°C for temperature; 60%--70% for RH.

3.It is not fitful to put spandex in isolation; to store with such chemical products as sulfur dioxide and nitrogen oxide, which would lead to decomposition.

4.The suggested storage limit is within 6 months for below 70D and 12months for above 70D.

5.Before placed on the machine, they shall be balanced for 12-24 hours in the workshop for better effect.

Dyeing & Finish

1.Under the high temperature condition, strength and stress of spandex yarn will decline to a certain extent and have different resilience. In order to ensure the fabric quality of the finished cloth, attention shall be paid to the dyeing and finishing conditions.

2.In the dry state at 185℃ without tension, the action time shall be less than 50 seconds.

3.In the wet state at 130℃without tension, the heat preservation period shall be less than 30 minutes.

4.The PH value of dyeing liquid shall be controlled between 3 and 10. The dyeing liquid shall be acidic (PH<7) for polyester and nylon fabrics and alkaline (PH>7) for cotton fabric. In the process of operation, it is strictly prohibited to use aromatic solvents, bleach containing active chlorine (such as sodium hypochlorite), alkaline and unsaturated oil and fat (such as linseed oil, animal oil, etc.), heavy metal salt (aluminum, chromium, zinc, etc.), benzoic acid dye intermediates, etc.

Attention: The above parameter is for reference only and without any technological and legal responsibilities. Before utilizing any spandex with new lot number, it is necessary to make specific tests according to different purpose and determine best parameter for crafts.

Established in April 2014, Fuzhou Hang Yang International Trade CO., LTD is devoted to develop domestic and foreign market of spandex, nylon-6, differential nylon and special specifications of nylon, polyester, nylon/polyester melange yarn. The company’s major partner holds 2 manufacturing plants covering 346 acres and 3500 employees in China. The annual production of nylon 6 filament and high elastic yarn is up to 51.5 million tons. The company has perfect quality assurance system, including ISO9001 quality management system, ISO14001 environmental management system, OHSAS18001 occupational health and safety management system and Oeko-Tex Standard 100 textile ecological authentication.

Service Tenet:

Provide reasonable price and perfect services, to promote the best products; take market demand as the guide, to improve production efficiency and product quality; offer comprehensive production and marketing advice.