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Splittable conjugate fiber

A composite fiber, split-type technology, applied in fiber processing, filament/thread forming, conjugated synthetic polymer man-made filaments, etc. Good color, bright color effect

Active Publication Date: 2010-02-10
SEIREN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

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Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0076] Nylon MXD6 having a relative viscosity of 2.7 and nylon 6 having a relative viscosity of 3.0 were mixed at a weight ratio of 50:50 to obtain a polyamide resin composition as component A. In addition, polyethylene terephthalate having an intrinsic viscosity of 0.61 was used as the B component.

[0077] According to the ratio of A component: B component volume ratio is 1: 2, under the condition of spinning temperature 295 ℃, spinning speed 1500m / min, carry out melt composite spinning in the mode that A component constitutes the radial part, obtain almost the same as Figure 4 Undrawn filaments of the same cross-section. At this time, component A is supplied to a metering pump through a static mixer after melting. Then, the obtained undrawn yarn was drawn under the conditions of a roller heater of 85°C, a plate heater of 150°C, and a drawing speed of 2.50 times to obtain a split-type conjugate fiber of 110dtex / 50f.

[0078]Then, using this drawn yarn, a tube knitting fab...

Embodiment 2、3

[0082] [Example 2, 3, Comparative Example 1, 2]

[0083] Except for changing the weight ratio of nylon MXD6 and nylon 6 which are polyamide components, fibers were produced by the method described in Example 1, and various evaluations were performed.

[0084] [Table 1]

[0085]

Embodiment 4

[0097] Except that the B component was made of polypropylene, and the treatment method was immersion in 98° C. hot water for 10 minutes, fibers were produced by the method described in Example 1, and various evaluations were performed. The results are shown in Table 2.

[0098] Due to the low adhesion between polyolefin and polyamide, it is easy to use hot water to cut fibers and shrink. Moreover, a product with soft touch and good bulkiness was obtained.

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Abstract

A splittable conjugate fiber that can provide a fiber structure with enhanced compactness, bulkiness and color formation. There is provided a splittable conjugate fiber characterized by having one member consisting of a polyamide resin composition containing an aromatic polyamide and an aliphatic polyamide and having another member consisting of a fiber forming polymer with no affinity to the polyamide resin composition. Preferably, the aromatic polyamide is a polyamide whose major structural units are composed of an aliphatic dicarboxylic acid and an aromatic diamine. In further preferred modes, the polyamide resin composition consists of nylon-MXD6 and nylon-6, the weight ratio therebetween ranging from 35:65 to 70:30, and the fiber forming polymer is a polyester or polyolefin.

Description

technical field [0001] The present invention relates to a split-type conjugate fiber which is composed of a plurality of split components containing polyamide and which can be effectively used for the production of a soft, bulky, and good-colored fiber structure. Background technique [0002] It is known that split-type composite fibers composed of polyamide and polyester can be split into two components by physical and chemical treatment, and the resulting fiber structure has bulkiness, flexibility, and good color. Furthermore, if the components obtained by division are extremely fine components, the effect is more remarkable, and it is also known that a high-density fibrous structure can be obtained. [0003] The splitting method of the split type conjugate fiber is disclosed in Japanese Patent Publication No. 53-35633, Japanese Patent Publication No. 61-37383, and Japanese Patent Laid-Open No. 4-272223, for example, using swelling and shrinkage of polyamide. In particula...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F8/12
CPCD01F8/12D01D5/30Y10T428/2929
Inventor 岩本勇人
Owner SEIREN CO LTD
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