Bio-Based Spandex

2024-09-06News 7320

Recommendation Reasons

Using renewable biological substances to replace the traditional petroleum

raw material, which greatly reduces the carbon emissions of spandex

products. On the basis of maintaining product performance, providing

consumers with green spandex products.

Processing Technology

By using biobased monomers, which are derived from renewable biomass via biofermentation,

linear bio-based polyester diols are synthesized by polycondensation and dehydration reaction.

Afterwards, all or part of the bio-based polyester diols are used as the raw material to prepare

spinning stock solution, and finally the bio-based spandex fibers are produced by dry spinning

technology.

Characteristics of Fiber and Product

Main Specifications

AoShen:20~560D

Huafon:20~70D

Standards and Certifications

Spandex filament yarns(Q/HFHX-J01004-2022)

Spandex filament yarns(FZ/T 54010-2014)

Fiber Performance and Product Features

. Bio-based raw material with 30~76% bio-based carbon content

. Green, low-carbon, environmentally-friendly, and biodegradable

. High elongation, and high elastic recovery rate

Specifications	Breaking strength (cN/dtex)	Elongation at break (%)	300% elongation strength(cN/dtex)	300% elongation elasticrecovery rate (%)	Bio-based carboncontent (%)	60-day degradationrate (%)
AOShen 40D	1.04	680	0.31	95.4	30~76	9.29%
Huafon 40D	1.47	542	0.21	92.4	38	—

The downstream application guidance

Weaving: Can be used in the knitted fabric fields such as covering yarn, circular knitting and

warp knitting

Application instance

Application field	Raw material proportioning	Main products and features
Lingerie, underwear	Cotton-spandex plain fabric: 95% cotton, 5% bio-based spandex 65% bio-based polyamide, 35% bio-based spandex	Soft, comfortable, elastic, not easy to deform
Outerwear,outdoorclothing	Dacron-spandex double-faced fabric: 77% dacron, 23% bio-based spandex	Soft,comfortable,breathable, not easy to deform
Yoga wear, T-shirt	Chinlon-spandex single-faced plain fabric: 85% nylon, 15% bio-based spandex 82% dacron, 18% bio-based spandex	Soft and skin-friendly, with good elasticity and breathability
Children’s wear	79% bio-based chinlon,21% bio-based spandex	Skin-friendly, comfortable

Fiber Application

Clothing textiles:Leisure wear,sportswear,Home wear,Jeans,Clothing,textiles,Lingerie,Sock,Swimsuit,Shirt

Q: What are the promotion advantages of bio-based spandex compared with conventional spandex?

A: Bio-based spandex is a renewable elastic fiber made from bio-based raw materials. Compared with conventional spandex, it can greatly reduce the carbon footprint, and has the advantages of energy conservation and emission reduction, as well as green and environmental protection. In addition, it can be combined with other natural fibers and synthetic fibers in sportswear, ready-to-wear and other textile fields. Under the current strategic targets of “carbon neutrality” and “carbon peaking ” , the market size of bio-based spandex will continue to expand.