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A fully extinction light-weight moisture-absorbing quick-drying polyester fiber and its preparation method

A polyester fiber, moisture-absorbing and quick-drying technology, which is applied in the field of chemical fibers, can solve the problems of difficult cleaning of the filter element of the melt filter, low titanium dioxide content, and difficulty in continuous and stable production, so as to ensure the stability of the melt and improve the capillary Function, the effect of simplifying the production process

Active Publication Date: 2021-09-17
JIANGSU HENGKE ADVANCED MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, titanium dioxide is generally used as a matting agent in the field of large-capacity melt direct spinning full-dull polyester fiber, but titanium dioxide itself is a degradation catalyst for polyester, which will promote polyester degradation during spinning, and its condensate will not dissolve in triglycerides. Alcohol, making it difficult to clean the filter element of the melt filter
Therefore, most of the full-dull polyester products currently on the market are produced by screw extrusion using full-dull chips. The production process is complicated, the production cost is high, and the product is single.
A small number of manufacturers use melt direct spinning to produce full-dull products, which is also limited by the reaction of upstream polyester melt, which makes it difficult to produce continuously and stably. The content of titanium dioxide in their full-dull products is not high, and the extinction effect is poor.

Method used

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  • A fully extinction light-weight moisture-absorbing quick-drying polyester fiber and its preparation method

Examples

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preparation example Construction

[0021] The present invention provides a kind of preparation method of full-dull lightweight moisture-absorbing quick-drying polyester fiber, comprising the following steps:

[0022] 1) Install a screw extrusion device on the melt direct spinning semi-dull polyester fiber production line, put the matte polyester masterbatch into the screw extrusion device, and obtain the matte polyester masterbatch melt through melt extrusion;

[0023] 2) The semi-dull polyester melt and the matte polyester masterbatch melt obtained in step 1) are respectively metered by a metering pump and injected into a mixer to mix evenly to obtain a mixed melt;

[0024] 3) The mixed melt obtained in step 2) is transported to the spinning box through the melt distribution pipe, and extruded from the special-shaped hollow spinneret, and then cooled by ring blowing, oiling nozzle, hot roller drafting, network device Add network and take-up machine to wind up, obtain a kind of complete extinction lightweight m...

Embodiment 1

[0030] according to figure 1 The production process flow chart of the full-dull lightweight moisture-absorbing and quick-drying polyester fiber is shown, and the fully-dull lightweight moisture-absorbing and quick-drying polyester fiber is prepared:

[0031] (1) Install a screw extrusion device 1 in front of the mixer 2, put the matte polyester masterbatch with a titanium dioxide content of 50wt% into the screw extrusion device 1, and obtain a matte polyester masterbatch melt by melt extrusion .

[0032] (2) The semi-dull polyester melt with a titanium dioxide content of 0.3wt% and the matte polyester masterbatch melt are measured at a flow rate of 1:17, respectively, and then injected into the mixer 2 and mixed evenly by a metering pump to obtain a mixed melt body.

[0033] (3) Transport the mixed melt to the spinning box 4 at 290°C (the spinning box 4 is heated by the biphenyl evaporator 16), distribute it through the melt distribution pipe 3 and then measure it with the m...

Embodiment 2

[0036] according to figure 1 The production process flow chart of the full-dull lightweight moisture-absorbing and quick-drying polyester fiber is shown, and the fully-dull lightweight moisture-absorbing and quick-drying polyester fiber is prepared:

[0037] (1) Install a screw extrusion device 1 before the mixer 2, put the matte polyester masterbatch with a titanium dioxide content of 45wt% into the screw extrusion device 1, and obtain a matte polyester masterbatch melt by melt extrusion .

[0038] (2) The semi-dull polyester melt with a titanium dioxide content of 0.4wt% and the matte polyester masterbatch melt are measured at a flow rate of 1:15, respectively, and then injected into the mixer 2 and mixed evenly by a metering pump to obtain a mixed melt body.

[0039] (3) Transport the mixed melt to the spinning box 4 at 285°C (the spinning box 4 is heated by the biphenyl evaporator 16), distribute it through the melt distribution pipe 3 and then measure it with the meteri...

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Abstract

The invention discloses a full-dull lightweight moisture-absorbing quick-drying polyester fiber and a preparation method thereof. Put it into it, and obtain a matte polyester masterbatch melt through melt extrusion; mix the semi-dull polyester melt and the matte polyester masterbatch melt evenly, and use a spinneret to spin. The preparation method of the present invention uses the semi-dull polyester melt containing low-concentration titanium dioxide as the main melt, and injects the matte polyester masterbatch melt containing high-concentration titanium dioxide and the main melt before the melt is transported to the spinning box for spinning. Body mixing can not only increase the final content of titanium dioxide in the polyester fiber, but also ensure the stability of the melt, and the production process is simple and the production cost is low. The all-dull light weight moisture-absorbing quick-drying polyester fiber of the present invention has a high content of titanium dioxide and has the advantages of good extinction effect, light weight, moisture absorption and quick-drying.

Description

technical field [0001] The invention relates to the field of chemical fibers, in particular to a full-dull lightweight moisture-absorbing and quick-drying polyester fiber and a preparation method thereof. Background technique [0002] Polyester fiber has the characteristics of high strength, good wear resistance, smooth surface, heat setting, stable physical and chemical properties, etc., and is widely used in the field of clothing. As people put forward higher requirements for the comfort and beauty of clothing, on the basis of maintaining the excellent properties of polyester fibers, further improve the properties of polyester fibers such as moisture absorption and perspiration, easy to dye, coolness, anti-ultraviolet, antibacterial, flame retardant, etc. It is the goal that polyester fiber manufacturers are striving to pursue. Full extinction polyester fiber is based on ordinary polyester fiber by adding high content of titanium dioxide extinction masterbatch, so that th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01D5/253D01D5/24D01F6/92D01F1/10D01D5/08
CPCD01D5/08D01D5/24D01D5/253D01F1/10D01F6/92
Inventor 印成崔太勋戴学军徐亚光张义成刘彪
Owner JIANGSU HENGKE ADVANCED MATERIALS CO LTD
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