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Polyurethane elastic yarn and manufacturing method thereof

A polyurethane elasticity, polymer technology, applied in the direction of one-component polyurethane rayon, rayon manufacturing, one-component synthetic polymer rayon, etc., can solve the problem of high cost, achieve excellent productivity, excellent unwinding, The effect of excellent adhesion

Pending Publication Date: 2021-12-31
东丽奥培隆特士股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Woven fabrics with elastic stretch capabilities have been considered as the raw material itself, but would be costly when used in disposable wearables

Method used

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  • Polyurethane elastic yarn and manufacturing method thereof
  • Polyurethane elastic yarn and manufacturing method thereof
  • Polyurethane elastic yarn and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0133] The PTMG of the MDI and the number average molecular weight is 1800 is loaded into the container, so that the molar ratio is MDI / PTMG = 1.58 / 1, reacts at 90 ° C, dissolve the resulting reaction product in N, N-dimethylacetamide (DMAC). Next, a DMAC solution comprising ethylenediamine and diethylamine is added to a solution that dissolves the above reaction product, thereby preparing a polyurethane urea solution in the polymer in the polymer.

[0134] After that, "Metachlor (Registered Trademark)" 2390 manufactured by DuPontCorporation manufactured by the oxidative inhibitor (DuPontCorporation) is used as the 2- [4 of the UV absorber , 6-bis (2,4-dimethylphenyl) -1,3,5-triazine-2-yl] -5- (octoxy) phenol (Cytec Corporation) "Cyasorb" (Registered Trademark) "1164) mixed with a mass ratio of 3: 2 to prepare DMAC solution (concentration: 35% by mass), and used as an additive solution (35% by mass).

[0135] The polyurethaneurea solution and the additive solution were mixed i...

example 2

[0138] The treatment agent (B1) of 25% polydimethylsiloxane, 73% mineral oil and 2% ST-Mg is prepared as a treatment agent that winds the polyurethane elastic yarn.

[0139] The wound yarn produced in the same manner as in Example 1, except that the treatment agent (B1) of 1% dry mass (B1) is applied to the polyurethane elastic yarn during the winding period.

[0140] Examples 3 to 6, Reference Examples 1 to 4

[0141] The yarn yarn is produced from the polyurethane elastic yarn by the polyurethane elastic yarn in the same manner as in Example 1 or Example 2, and the type and / or inclination ratio of the component is changed as shown in Table 1.

[0142] Examples 7 to 8 and Reference Examples 5 to 6

[0143] The wound yarn of 4.5 kg of polyethylene elastic yarns is produced in a manner similar to other examples and reference examples, and the specification is changed to 310 (32 filaments) as shown in Table 1.

[0144] Various evaluation results of the produced yarns are shown in ...

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Abstract

To provide a polyurethane elastic yarn that is superior in unwinding properties and adhesive properties in respect to a hot melt adhesive agent, and to provide a manufacturing method thereof. A polyurethane elastic yarn wherein the main structural component of the polyurethane is a polymer diol or diisocyanate; and includes a polymer that includes, as the main structural unit, a structural unit that uses an aromatic olefin and / or an aliphatic diolefin as a monomer, and is partially hydrogenated or completely hydrogenated.

Description

Technical field [0001] The present invention relates to a polyurethane elastomeric yarn and a method for producing excellent in a rewindability and hot melt adhesion, and further relates to a polyurethane elastic yarn and a method for producing a method, and the polyurethane elastic yarn is ideally applicable to production display good heat. Meltable binders (even in high drawing processing). Background technique [0002] Elastic fiber, in view of its excellent tensile characteristics, widely used in the field of tensile clothing, such as leggings, underwear, sportswear, etc., and health applications (sanitary materials applications), such as disposable diapers, sanitary napkins, etc. And industrial materials applications. [0003] Specifically, in the field of disposable sanitary applications, such as disposable diapers and sanitary napkins, it is necessary to achieve stretchability, thereby increasing the soft fitness of the user. In particular, disposable diapers, various inno...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/94D01F1/10C08G18/48D02G3/32
CPCD01F6/94D01F1/10D01F1/106C08G18/4854D02G3/328D01F6/70D10B2331/10D10B2401/061D10B2509/026D10B2505/00D02G3/045
Inventor 铃木克哉田中利宏苗代一木
Owner 东丽奥培隆特士股份有限公司
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