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Fiber forming compositions, fibers and methods for production

A composition and fiber technology, applied in the direction of single-component synthetic polymer rayon, fiber treatment, fiber type, etc., can solve problems such as unsatisfactory, reduced elasticity, etc., and achieve good elasticity, good drafting performance, high modulus Effect

Active Publication Date: 2018-10-23
TEKNOR APEX
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, USBC is not ideal for such applications
Also, USBC with high flowability suitable for melt spinning may have high diblock content, which significantly reduces its elasticity compared to HSBC

Method used

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  • Fiber forming compositions, fibers and methods for production
  • Fiber forming compositions, fibers and methods for production
  • Fiber forming compositions, fibers and methods for production

Examples

Experimental program
Comparison scheme
Effect test

example

[0115] The following examples are provided to illustrate the fiber-forming compositions and fibers of the present invention. These examples are not intended to limit the scope of the invention.

[0116] Sample preparation

[0117] The materials for each of the compositions listed below were stirred to a substantially homogeneous state and mixed during the melt using a Berstorff ZE 40 twin-screw extruder at a temperature range of about 148°C to 205°C and a screw speed of 150-250 rpm. The hot strands of the extrudate are drawn through a water bath and pelletized using a pelletizer.

[0118] Fibers are formed during melt extrusion. The pellets were melted in a conventional thermoplastic extruder and passed through a heated hose approximately 30.48 cm long x 1 cm inner diameter to a spinneret die to form fibers, air cooled and wound into bales. A single screw approximately 1.59 cm diameter vertical thermoplastic extruder with a 24:1 aspect ratio and a general purpose polyolefin...

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Abstract

Compositions especially suitable for forming fibers and films having good elasticity and relatively high modulus are disclosed. Surprisingly, compositions including a styrenic block copolymer having arelatively high melt flow rate, and a detackifier, and optionally, but preferably in some embodiments a polyolefin (co)polymer, and / or polystyrene polymer, and / or a softener have good draw down performance and are processable into fibers having low tack, relatively high modulus and tensile strength. The fibers produced from the composition can be processed easily and are useful to manufacture articles such as fabrics, both woven and non-woven, webs, threads, and yarns. In various embodiments, unique fiber structures are produced having low tack and desirable elasticity.

Description

technical field [0001] The present invention relates to compositions particularly suitable for forming fibers and films having good elasticity and relatively high modulus and tensile strength. Surprisingly, comprising a styrenic block copolymer with a higher melt flow rate and a detackifier, and optionally, but in some embodiments, a polyolefin Compositions of (co)polymers and / or polystyrene polymers, and / or softeners have good draw down performance and can be processed into fibers with high modulus, high tensile strength and low tack . Fibers made from the compositions can be easily processed and used to make articles such as fabrics (woven and nonwoven), meshes, threads and yarns. In various embodiments, unique fiber structures with low viscosity and desired elasticity are created. Background technique [0002] Many different kinds of polymers or polymeric materials, generally elastic or elastomeric, have been used to make fibers and films that form a wide variety of go...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L25/06C08L53/02D01F6/28
CPCD06M15/507D06M15/59D01D5/253D01F1/10D01F6/56D06M2101/20D02G3/36D01F6/42D06M2200/40D06M15/256D06M15/643
Inventor 库沙尔·巴尔达内尔·C·沃利克里斯·拉图利普
Owner TEKNOR APEX
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