Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Sheath-core polyester fiber including antimicrobial agent

An antimicrobial agent, polyester fiber technology, applied in the direction of fiber chemical characteristics, single-component polyester artificial filament, conjugated synthetic polymer artificial filament, etc., can solve the problem of color-changing spinning productivity and other issues

Inactive Publication Date: 2001-05-30
INVISTA TECHNOLOG IES S A R L
View PDF13 Cites 28 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Furthermore, the present invention solves the various problems associated with the prior art by providing a sheath-core polyester fiber which suffers from the discoloration, degradation and spinning productivity problems of the prior art due to its selected antimicrobial agent get over

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Sheath-core polyester fiber including antimicrobial agent
  • Sheath-core polyester fiber including antimicrobial agent
  • Sheath-core polyester fiber including antimicrobial agent

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0067] Use 2G-T polymer flakes of LRV23.5 to prepare antimicrobial agent masterbatch, the method is as above for Figure 4 instruction of. The masterbatch is dried with dry air at about 166° C. before bicomponent spinning, for example in 80 in FIG. 5 . 2G-T polymer flakes were also used as skin and core polymers, respectively. 2G-T polymer sheets for the skin were dried using dry air at about 160°C, eg in hopper 90 of Figure 5, and for the core at a temperature of about 150°C, eg in hopper 100 of Figure 5 . The polymer for the skin is processed through a single screw extruder, such as extruder 85, 86 shown in Figure 5, which is modified so that the volumetric metered additive masterbatch provides 6 wt. % Antimicrobial Powder, the extruder was operated at a discharge temperature of 277°C at a rate of 252 lbs (144 kg) per hour. The polymer for the core is processed through a conventional single screw extruder, such as extruders 103, 104 shown in FIG. condition.

[0068] The...

example 2

[0075] The core sheath fiber of Example 2 was prepared similarly to Sample A of Example 1, except that the antimicrobial masterbatch was metered in so that the sheath of the silk contained 5 wt% of the antimicrobial powder. Additionally, the skin and core polymer streams were combined in a 3:7 ratio to yield a 30% skin (containing 5% antimicrobial). This example is identified as Example 2 in Table 3 below.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A sheath-core polyester fiber where the sheath includes an antimicrobial agent and the sheath comprises less than thirty percent of the total cross-sectional area of the fiber. The antimicrobial agent is selected such that the relative viscosity of the fiber lies above a defined spinnability limit, so that spinning is possible. With no loss in antimicrobial efficacy, the fiber of the present invention may be slickened with a siliconized finish in order to reduce fiber friction, thus giving the fiber a silky feel.

Description

field of invention [0001] The present invention relates to sheath-core polyester fibers having antimicrobial properties, and more particularly to fibers wherein the sheath contains an antimicrobial agent and comprises less than 30% of the total fiber cross section. Background of the invention [0002] We are surrounded by all kinds of microbes that, in some cases, can interfere with our ability to live healthy lives. Microorganisms that exist in our clothes are able to proliferate rapidly due to the favorable conditions provided such as temperature, humidity and various nutrients. Accordingly, there is a continuing desire to provide fibers with antimicrobial activity to protect the user and the fibers while doing so economically. For simplicity, the term "antimicrobial" is used herein to collectively refer to antibacterial, antifungal, and other such activities. [0003] Proprietary antimicrobial acrylic and acetate fibers are currently commercially available. However, si...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): D01F1/10D01F6/92D01F8/14
CPCD01F8/14D01F1/103Y10T428/2924Y10T428/2929Y10T428/2933
Inventor J·V·哈佐格D·S·奎恩
Owner INVISTA TECHNOLOG IES S A R L
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com