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

Dry spinning polyurethane-based elastic fiber

A polyurethane-based, elastic fiber technology, applied in fiber processing, textiles and papermaking, conjugated synthetic polymer artificial filaments, etc., can solve the problems of unwinding, yarn skipping resistance and scum accumulation Sufficient and other issues

Active Publication Date: 2017-06-23
TAKEMOTO YUSHI KK
View PDF9 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these conventional dry-spun polyurethane elastic fibers have a problem in that the unwinding properties imparted to polyurethane elastic fibers having a calorific value measured by a differential scanning calorimeter (hereinafter referred to as DSC) is within a specific range , Insufficient unwinding properties over time, yarn skipping resistance and scum accumulation resistance

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

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0030] The method for producing the treatment agent described above is not particularly limited, and a known method can be applied.

[0031] The treatment agent as described above can be attached to the polyurethane-based elastic fiber in an undiluted state without dilution. As the adhesion method, known methods such as a roller oiling method, a yarn carrier oiling method, and a spray oiling method can be applied. The attachment step is preferably a spinning step. Examples of the spinning method in the spinning step include a dry spinning method, a melt spinning method, and a wet spinning method, and the dry spinning method is applied. The adhesion amount of the treatment agent is 0.1 to 10% by mass, preferably 1 to 8% by mass with respect to the polyurethane elastic fiber. The form of the polyurethane-based elastic fibers is not particularly limited, and either filament-based fibers or staple-based fibers may be used.

[0032] The effect of the invention

[0033] Accordin...

Embodiment

[0035] Hereinafter, examples etc. are given in order to make the structure and effect of this invention more concrete, but this invention is not limited to these examples. In addition, in the following Examples etc., a part means a mass part, and % means a mass %.

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

PropertyMeasurementUnit
Heat releaseaaaaaaaaaa
Dynamic viscosityaaaaaaaaaa
Login to View More

Abstract

The invention discloses a dry spinning polyurethane-based elastic fiber. To provide a treatment agent for polyurethane-based elastic fiber for adding excellent unwindability, unwindability with time, cob-webbing resistance and scum deposition resistance at the same time to a polyurethane-based elastic fiber having a heat generation amount by a DSC measurement in a specific range, and a treatment method for the polyurethane-based elastic fiber using the treatment agent. As a treatment agent for the following polyurethane-based elastic fiber, used is one consisting of the following smoothing agent and the following unwindability enhancing agent with over 99.7 mass% of the following smoothing agent and less than 0.3 mass% of the unwindability enhancing agent (total 100 mass%). A polyurethane-based elastic fiber is a polyurethane-based elastic fiber having a heat generating amount at 150 to 300 DEG C by a differential scanning calorimeter (DSC) measurement of 40 mJ / mg or more and less than 150 mJ / mg. A smoothing agent is at least one selected from silicon oil, mineral oil and ester. A unwindability enhancing agent is at least one selected from a silicon resin having a trifunctional siloxane unit and / or a tetrafunctional siloxane unit in a molecule as a constitutional unit and mass average molecular weight of 3000 to 100000 and alkali earth metal salt of aliphatic acid having 10 to 22 carbon atoms.

Description

technical field [0001] The present invention relates to dry-spun polyurethane-based elastic fibers, and more specifically, to a dry-spun polyurethane elastic fiber that simultaneously imparts excellent unwinding properties, unwinding properties over time, yarn skipping resistance, and scum accumulation resistance. Silk polyurethane based elastic fiber. Background technique [0002] Conventionally, dry-spun polyurethane-based elastic fibers have been known: fibers to which a treatment agent containing a modified silicone having a terminal group-blocked polyether group is attached (for example, refer to Patent Document 1 ); fibers with a treatment agent containing water-soluble silicone (for example, refer to Patent Document 2); fibers with a treatment agent containing polyalkylene ether glycol, higher alcohol, mineral Oil and dimethyl silicone (for example, refer to Patent Document 3); fibers to which a treatment agent containing mineral oil and an aliphatic ester compound (...

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): D01F8/16D01F8/10D06M15/643D06M13/02D06M13/188D06M13/292D06M13/328C08G77/18
CPCC08G77/18C08G77/70D01F8/10D01F8/16D06M13/02D06M13/188D06M13/292D06M13/328D06M15/6436
Inventor 伊藤旬荒川泰伸
Owner TAKEMOTO YUSHI KK
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