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Island-in-sea fiber, combined filament yarn and textile product

A technology of sea-island fiber and mixed fiber yarn, which is applied in fiber processing, filament/thread forming, textiles and papermaking, etc. It can solve the problems of uncontrollable nanofiber configuration, suppression of nanofiber existence limit, partial shedding of island components, etc. Achieve excellent water absorption function, excellent wiping performance, and eliminate the effect of slippery feeling

Active Publication Date: 2014-11-05
TORAY IND INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the configuration of the nanofibers cannot be controlled, and as a result, there is a limit in suppressing the bias of the nanofibers
In addition, due to the non-uniform cross-section, there is a tendency to deteriorate the spinning performance, and in the post-processing property, there may be new problems such as partial drop-off of the minimized island components.

Method used

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  • Island-in-sea fiber, combined filament yarn and textile product
  • Island-in-sea fiber, combined filament yarn and textile product
  • Island-in-sea fiber, combined filament yarn and textile product

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0147] Polyethylene terephthalate (PET1 melt viscosity: 160 Pa·s) as the island component and PET (copolymerized PET1 melt viscosity: 95Pa·s) were melted at 290°C, and then measured so that they flow into the assembly Figure 6 The spin pack of the composite die of the present invention is shown, exiting the composite polymer stream from the discharge orifice. In addition, in the distribution plate directly above the discharge plate, as the island component of each discharge hole, a total of 790 distribution holes are perforated in each discharge hole, and the distribution hole 25-(a) (hole diameter: φ0.20mm ) is 720 holes, 25-(c) (aperture diameter: φ0.65mm) is 70 holes, and the arrangement pattern of the holes is Figure 7 (a) Arrangement. exist Figure 6 The annular groove for the sea component shown in 29 in (d) used the annular groove which perforated the distribution hole every 1 degree in the circumferential direction.

[0148] In addition, the length of the dischar...

Embodiment 2～4

[0160] Except for changing the composite ratio of the sea / island components to 30 / 70 (Example 2), 50 / 50 (Example 3), and 70 / 30 (Example 4), all implementations were carried out as in Example 1. The evaluation results of these sea-island fibers are shown in Table 1. Similar to Example 1, they are excellent in spinning properties and post-processing properties, and there is no partial deviation in the number of island components A or island components B in the cross section of the mixed fiber yarn. place. About water absorption and color development, it was excellent similarly to Example 1. In Example 4, compared with Example 1, although slight detachment of ultrafine fibers was confirmed, it was a problem (judgment of detachment: ◯). In addition, the stain removal rates evaluated by the same method as in Example 1 were all 80% or more, and it was confirmed that the mixed fiber yarn of the present invention has good wiping performance. The results are shown in Table 1.

Embodiment 5

[0162] Using the distribution plate used in Example 1, the sea / island composite ratio was 80 / 20 for spinning at a total output of 12.5 g / min, and the obtained undrawn fiber was drawn at a draw ratio of 3.5 times. Stretch, except that, all implement according to embodiment 1. In addition, in Example 5, although the total discharge amount was reduced, it had the same spinning property as that of Example 1. This is considered to be an effect that the island components are equally and regularly arranged.

[0163] Although the cross-section of the sea-island fiber obtained in Example 5 had an extremely narrow diameter of 180 nm, the island component had a triangular cross-section (degree of irregularity 2.0), and the deviation of the degree of irregularity was also 3.0%, which was small. Since the diameter of the island component A was significantly reduced compared with Example 1, it is considered that a small amount of nanofibers that were affected during sea removal fell off, b...

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Abstract

An island-in-sea fiber wherein two or more kinds of island components (4, 5), said island components having different cross sections and showing a difference in degree of irregularity of 0.2 or greater, are present on a fiber cross-section, characterized in that at least one type (4) of the island components has a degree of irregularity of 1.2-5.0 and a dispersion in the degree of irregularity of 1.0-10.0%. A combined filament yarn that is obtained by removing a sea component (6) from the aforementioned island-in-sea fiber, and a textile product comprising at least the island-in-sea fiber or the combined filament yarn. Provided is a raw yarn for a combined filament yarn for manufacturing a cloth that has good tension, good drape and excellent color-developing properties, said raw yarn being an island-in-sea fiber comprising two or more kinds of polymers wherein island components and a sea component surrounding the island components are present on a fiber cross-section in a direction perpendicular to the fiber axis.

Description

technical field [0001] The present invention relates to a sea-island fiber, and a mixed fiber yarn and a fiber product using the sea-island fiber. The sea-island fiber contains an island component and a sea component arranged to surround the island component in a fiber cross section perpendicular to the fiber axis. Sea-island fibers, which can obtain unprecedented high-function fabrics with excellent quality stability and post-processing. Background technique [0002] Fibers made of thermoplastic polymers such as polyester and polyamide are excellent in mechanical properties and dimensional stability. Therefore, it is widely used not only for clothing but also for interior decoration, car interior decoration, industrial use, and the like. However, as the uses of fibers diversify, their required properties are also diversifying. Therefore, a technique for imparting sensuous effects such as texture and bulkiness by the cross-sectional shape of fibers has been proposed. Amon...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F8/04D02G3/04
CPCD01D5/36D01F8/04D01F8/12D01F8/14D01F8/16D02G3/22
Inventor 增田正人船越祥二
Owner TORAY IND INC
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