Apparel Knowledge

Elastomeric Fibres

- fibres with elastic capability

Elastomeric fibres are those fibres that possess extremely high elongations at break and that recover fully and rapidly from high elongations up to their breaking point. The fibres are all used in specialized applications where high elasticity is necessary within the textile structure. An Elastomer is a polymer with the physical property of elasticity. Elastomer is a term derived from elastic polymer, which is often used interchangeably with the term rubber.

Elastomeric Fibers

Elastomeric fibers are those fibers that possess extremely high elongations (400%-8001) at break and that recover fully and rapidly from high elongations up to their breaking point.

Elastomeric fibers include the crosslinked natural and synthetic rubbers, spandex fibers (segmented polyurethanes), anidex fibers (crosslinked polyacrylates) and the side-by-side biconstituent fiber of nylon and spandex (Monvelle). The fibers are all used in special ized appl ications where high elasticity is necessary within the textile structure.

RUBBER

Rubber fibers from natural sources have been known for over 100 years. Natural rubber in commerce is derived from coagulation of Hevea brasiliensis latex and is primarily -polyisoprene, a diene polymer.

Rubber fibers exhibit excellent elastic properties but are sensitive to chemical attack, thereby limiting their usefulness.

Rubber fibers are manufactured by several companies as rubber fiber or under trade names such as Buthane, Contro, Hi-Flex, Lactron, Lastex, and Laton. Rubber fibers show good elastomeric properties and reasonable aesthetic properties particularly as the core of a textile yarn structure.

SPANDEX

Spandex fibers are elastomeric fibers that are >85% segmented polyurethane formed through reaction of a diisocyanate with polyethers or polyesters and subsequent crossl inking of polyurethane units. The spandex fibers resemble rubber in both stretch and recovery properties, but are far superior to rubber in their resistance to sunlight, heat, abrasion, oxidation, oils, and chemicals. They find the widest use of any of the elastomeric fibers.

Spandex is widely used and sold as an elastomeric fiber under that designation or under such trade names as Cleerspan, Glospan, Lycra, or Numa. Spandex possesses excellent elastomeric properties and acceptable aesthetics for use in constructions requiring such a fiber. Spandex is dull, but luster may be improved with brighteners.

Anidex

Anidex fibers are defined as fibers containing polymers that are at least 50%of one or more polymerized acrylate esters. Anidex fibers are formed through emulsion copolymerization of acrylate esters with reactive crosslinkable comonomers such as -methylolacrylamide.

Anidex fibers apparently did not have sufficient differences in properties to become an economic success and are no longer being produced.

Nylon-Spandex Biconstituent Fiber

An inherent problem with elastomeric fibers is their low strength and limited abrasion resistance. A new biconstituent elastomeric fiber-Monvelle-- has been introduced to answer these problems. The fiber is a side-by-side bicomponent fiber containing nylon and spandex. The fiber is melt spun by special spinnerets to form the fiber.

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FAQ

1. How do I order and what happens next?

Please write us an email about your demand with detail description, such as item size, color, design, quantity, packing and special requirement, then we can help you finish any purchasing task on baby business.

2. Do I need to come to your factory to order?

No, you do not need to come here. We can do everything through email, phone and post. But welcome to visit our office and factory.

3. Can I order samples first and then place the bulk order?

Yes, we understand that customers want samples first, and then need a sales period to collect orders from their customers. However we will ask customer for a small deposit of the bulk order. This deposit will be reimbursed when placing the bulk order. So, samples are FREE when ordering in bulk. (Good news: some stock items can ship as free sample, pls contact us for detail.)

4. What is the lead time for samples?

Generally speaking, your ordered samples will be shipped out around 1-2 weeks. For stock item, we can send you immediately.

5. What is the lead time for manufacture?

In general we're able to manufacture orders of a quantity of up to ten thousand items within 45 days. In case we have fabric in stock, it will be 15-20 days.

6. Can I put my own label and logo on the products?

Yes, we offer OEM and ODM services
You may send your label design to us and we make them for you or you send your finished labels to us and we sew on the clothes (free of charge).

7. What is the minimum order quantity (MOQ)?

We have wholesales service, for products in stock, MOQ is 1 box, 50-120 pcs depending on items. (Good news: you can order from 1 pc or 1 lot from our stock items during promotion. Pls contact us for detail.)
Regarding OEM service, general minimum order quantity (MOQ) of each design is 500-1000 pieces per color, depending on fabric stock.

8. How about Color difference?

Due to lighting, monitor and personal understanding of color, color difference between photo show and actual product is inevitable, your understanding is highly appreciated. However, we can send you lapdip for confirmation before bulk production