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Method of producing whole extinction polyester fiber

A technology of polyester fiber and production method, which is applied in the production field of polyester fiber and fully matte polyester fiber, can solve the problem that the content of matting agent TiO2 in fully matt chips is not easy to adjust flexibly, and it is difficult for long-term continuous production of full matt chips, and full matt chips are difficult to produce continuously for a long time. The market demand for slices is not large, and the effect of overcoming spinning difficulties, soft fabric luster and reducing production costs is achieved.

Inactive Publication Date: 2007-10-17
中国石化仪征化纤股份有限公司
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  • Application Information

AI Technical Summary

Problems solved by technology

At present, the number of manufacturers using this method to produce full-dull fibers is gradually increasing. However, the overall market demand for full-dull chips is not large, and there is a contradiction between the conventional production capacity of large-capacity polyester production equipment, which makes it difficult to achieve long-term continuous production of full-dull chips. Production, the device needs to change production frequently, which not only increases the various production costs of full-dull chips, but also has inherent quality differences in each batch of full-dull chips, which causes difficulties for spinning mills
In addition, this method also has a drawback, that is: the matting agent TiO in the full matting section 2 The content is not easy to adjust flexibly according to user needs

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Melt spinning is carried out by using sheath-core composite spinning components, and the core components are all made of TiO 2 For semi-dull PET slices with a content of 0.2%-0.5%, 97.5% of the cortex components are also the above-mentioned semi-dull PET slices, and the remaining 2.5% are TiO-containing 2 50% of the major Japanese ink companies import full extinction masterbatch, and the total amount of cortex components accounts for 30% of all raw material slices. The spinning process is: chip conveying→drying→masterbatch adding device metering and mixing→screw extruder→melt filter→spinning box→metering pump→spinneret assembly→side blowing→cooling→winding. The spinning temperature is controlled at 290-295° C., and the spinning speed is 3000-4000 m / min to obtain full-dull POY winding yarn. The POY winding wire is further processed into DTY through double-zone thermal stretching, with a draw ratio of 1.58-1.72. The temperature of the deformation heating box is controll...

Embodiment 2

[0016] Same as Example 1, wherein 5.0% of the full matt masterbatch is added to the skin layer component.

Embodiment 3

[0018] Same as Example 1, wherein the total amount of cortex components accounts for 20% of all raw material slices.

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Abstract

The present invention relates to a process for preparing full-dull polyester fibres related to the field of production of synthetic fiber. Common semi-dull or optical polyester chip is selected as main raw materials for production, a composite spinning module of core-skin type or island -type is adopted to perform a melt spinning, the raw material slicers are split into two or more components, full-dull master batches are added only to one of the components during feeding, then conventional manufacturing technique of POY and DTY is utilized to work out full-dull polyester fibres. Said process not only reduces greatly the fabricating cost of full-dull polyester fibres due to that the absolute adding amount of master batch is substantially reduced; but also can effectively overcome spinning technological difficult problems in traditional master batch method, prolong the service lifetime of the prefilter and the spinning module. Therefore, without great reconstruction, the existent composite spinning production chain can be used for exploitation and production of full-dull polyester fibres and satisfies the higher requests of top grade loomages for lustrous surface improvement.

Description

technical field [0001] The invention relates to polyester fibers, in particular to a production method of full-dull polyester fibers, and belongs to the technical field of synthetic fiber production. Background technique [0002] Clothes made of traditional ordinary semi-dull polyester fibers are difficult to apply to casual clothing and high-end clothing because of their obvious surface gloss and strong waxy texture. As for the full-dull polyester fiber, it is physically modified on the basis of ordinary polyester fiber, and a high content of matting agent is added to make the fiber and fabric have the characteristics of soft luster, high drapability, and strong shielding performance. With the development of the trend of life towards leisure, comfort and casualness, full-dull polyester fiber has attracted more attention from insiders, and its production method has been further researched and developed. [0003] According to domestic and foreign literature reports: Shaoxing...

Claims

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Application Information

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IPC IPC(8): D01F6/62D01D5/42D01D5/08
Inventor 马建平陈策张玲曹正秋
Owner 中国石化仪征化纤股份有限公司
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