Method for producing fibers having a low surface energy and fibers, yarns and textiles having a low surface energy

Inactive Publication Date: 2015-07-23
SHINKONG SYNTHETIC FIBERS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention provides a method for producing fibers with low surface energy that have excellent liquid repellency and anti-fouling properties at low production costs. The method involves adding a low surface energy additive to the spinning raw materials at the spinning raw material stage, which leads to shorter processing times, reduced equipment volume, and lower costs as compared to existing methods. The resulting fibers have a surface tension of 25-82 dyn / cm and require no additional water repellent treatment, thus avoiding scorching and improving the efficiency of the production process.

Problems solved by technology

In addition to a long processing time and increasing costs, the water repellent agent is scorched on the heat treatment unit due to the heat.
Further, since the water repellent agent only adsorbs onto the surface of the yarns, it may transfer to other yarns which are not desired to become water repellent during subsequent treatments (such as yarn binding treatment).
However, during the latter processing procedure of this method, since the water repellent agent adsorbing onto the fiber surface is prone to adhering on the hot plate after heating, scorched fouling (which cannot be easily cleaned and scratched) is produced.
This not only leads to hot plate equipment damage, but the textile properties are also affected owing to a non-uniform heating of fiber.
Moreover, after water washing the water repellent fibers / yarns produced by the aforementioned prior arts for several times, the water repellent agent adsorbing on the fibers / yarns is prone to being washed out.

Method used

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  • Method for producing fibers having a low surface energy and fibers, yarns and textiles having a low surface energy
  • Method for producing fibers having a low surface energy and fibers, yarns and textiles having a low surface energy

Examples

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example 1

[0035]Polyethylene terephthalate (A) particles and polyethylene terephthalate particles containing 30 wt % of a fluorine-series low surface energy additive (FC-L624, produced by GOULSTON company) (B) were blended in an AB ratio of =90 / 10; melt spun at a spinning rate of 2800 m / min at 288° C.; followed by a false twist processing procedure (DTY) at a winding rate of 600 m / min, a hot plate temperature of 230° C. and a drawing ratio of 1.75 to produce fibers containing 3 wt % of a low surface energy additive. The thus produced fibers are woven to form textiles, and the surface tension value, water droplet contact angle and water repellent test characteristic were measured. The results are shown in Table 1.

example 2

[0036]Polyethylene terephthalate (A) particles and polyethylene terephthalate particles containing 30 wt % of a fluorine-series low surface energy additive (FC-L624, produced by GOULSTON company) (B) were blended in an A / B ratio of =90 / 10; melt spun at a spinning rate of 2800 m / min at 288° C.; followed by a fully drawn yarn processing at a spinning rate of 4000 m / min, a drawing temperature of 85° C., a setting temperature of 130° C. and a drawing ratio of 2.1 to produce fibers containing 3 wt % of a low surface energy additive. The thus produced fibers are woven to form textiles, and the surface tension value, water droplet contact angle and water repellent test characteristic were measured. The results are shown in Table 1.

example 3

[0037]Polyethylene terephthalate (A) particles and polyethylene terephthalate particles containing 30 wt % of a fluorine-series low surface energy additive (FC-L624, produced by GOULSTON company) (B) were blended in an A / B ratio of =90 / 10, followed by HOY processing at a spinning rate of 4500 m / min at a melting temperature of 288° C. to produce fibers containing 3 wt % of a low surface energy additive. The thus produced fibers are woven to form textiles, and the surface tension value, water droplet contact angle and water repellent test characteristic were measured. The results are shown in Table 1.

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Abstract

The present invention relates to a method for producing a low surface energy fiber having a long-term liquid repellency and anti-stain effect.The present invention relates to an addition of a specific ratio of low surface energy additives to a thermoplastic polymer used as a spinning raw material, which is subjected to spinning processing procedure, such as melting spinning, to produce fibers with a surface tension of between 25˜72 dyne / cm.

Description

BACKGROUND OF THE INVENTION[0001]1. Technical Field of the Invention[0002]The present application is directed to a production method of fibers, and specifically to a production method of fibers having a low surface energy.[0003]2. Description of the Related Art[0004]The existing textiles having a low surface energy (low surface tension) are usually produced by a processing procedure of applying a low surface energy aid to a fabric, such as by means of coating, dipping, padding, etc., to allow the low surface energy aid to adsorb onto the fabric, and then fixing the aid onto the fabric at a heating temperature of about 100˜210° C.[0005]TW Patent Application No. 098110619 (hereinafter, D1) discloses a production method of yarns having water repellency, wherein the yarns to be treated are allowed to pass through a reagent vessel containing a water repellent agent, and then pass through a heat treatment unit to fixing the water repellent agent on the yarns to be treated to form yarns ha...

Claims

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Application Information

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IPC IPC(8): D01F6/92D01D5/098D01D5/08
CPCD01F6/92D01D5/08D10B2401/021D10B2321/042D10B2331/04D01D5/098D01D5/16D01F1/10D01F6/04D01F6/60D01F6/62Y10T428/249921
InventorTU, YI JENWU, KUO CHUNG
OwnerSHINKONG SYNTHETIC FIBERS