SGS AZO REACH Coated Suede Faux Leather Anti Wrinkle Microfiber Pu Leather

Coated Microfiber Fabric Faux Leather Suede Materials Microfiber Pu Leather For Sofas

• Product advantages

1. Light and clean appearance, good air permeability and drapability
2. Soft, light and transparent, smooth and elastic
3. It's very comfortable and elegant
4. After high temperature shrinkage treatment, it is not easy to deform and wrinkle
5. Good physical properties, high fiber strength, wear resistance, durable
6. Good chemical properties, alkali resistance, chemical resistance, anti moth, anti mold.

The structure of polyolefin fibres thin cross-sections

• Microfibres (count < 1 dtex) and increasingly nanofibres (count < 0.3 dtex) are assuming steadily increasing importance in polyolefin fibre technology. Microfibres can be produced directly by melt extrusion, although extrusion rate has to be reduced and extensive draw-down is required. Filaments consisting of microfibres produced in this way may suffer from extensive variation in thickness as a result of variability in cross-section of the constituent microfibres. An alternative method for producing microfibres is by the ‘islands-in-the-sea’ approach, in which the ‘sea’ is dissolved to leave behind the microfibres. Melt-blowing also produces microfibres, and indeed fibres of fineness as low as 0.01–0.2 dtex are often produced; such fibres can thus be considered as nanofibres. Nanofibrillation may also perhaps become an established technique for producing polyolefin nanofibres.

• Polyolefin nanofibres can be produced by electrospinning, a technique discussed at length in Chapter 17. Techniques have been reported, for example, for electrospinning polyolefin nanofibres from solution and from the melt. Thus, poly(1-butene) and poly(4-methyl-1-pentene) have recently been successfully spun from mixed solvent systems at room temperature.47,48 In the case of poly(4-methyl-1-pentene), the fibre morphology was found to be strongly influenced by the nature of the solvent system, whilst with poly(1-butene) different crystalline structures resulted depending on the processing conditions used. In PP fibres produced by melt electrospinning,49 it was observed that those with the highest molar mass possessed the largest cross-sections. Fibres of low molar mass could possess cross-sections as small as1 ∞m, or even slightly lower. In addition, fibre cross-section decreased with increasing strength of the applied electric field.