Chemical fiber material prepared from mixed polyester

A technology for chemical fibers and mixed materials, applied in the field of fabrics and/or other products and yarns, can solve the problems of difficulty in dyeing polytrimethylene terephthalate, and achieve excellent dyeing effect, excellent smoothness, and good processing feasibility. Effect

Pending Publication Date: 2022-07-08
DU PONT CHINA HLDG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Some polyester textile materials such as Polytrimethylene Terephthalate (PTT) are more difficult to dye

Method used

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  • Chemical fiber material prepared from mixed polyester
  • Chemical fiber material prepared from mixed polyester
  • Chemical fiber material prepared from mixed polyester

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0056] Preparation of chemical fiber materials

[0057] Unless otherwise indicated, the samples and controls in the Examples were prepared as follows.

[0058] The preparation of spinning includes mixing at least one polyester pellet, such as PTT polyester chip, and at least one other polyester particle, such as PBT polyester chip, in different ratios, such as 10 / 90, 20 / 80, 30 / 70, 40 / 60, 50 / 50, 60 / 40, 70 / 40, 80 / 20 and 90 / 10, put into the feed port of the screw extruder after physical mixing. After the material is sheared and melted in the extruder, a mixed polyester melt, such as a PTT / PBT mixed polyester melt, is obtained, and the mixed polyester melt is transported to the spinning assembly by a pump.

[0059] The mixed polyester melt can be passed through the spinning pack alone, bundled into strands to make long fibers, or cut into short fibers.

[0060] Blended polyester melts can also be co-formed with melts of other polyester fiber materials to form composite fibers...

Embodiment 1

[0082] Example 1: Preparation and physical property test of PBT / PTT mixed polyester chemical fiber

[0083] 1.1 Preparation and Characterization of Unicomponent Filaments of Uniform Composition

[0084] Polytrimethylene terephthalate (commercially available trade name Intrinsic viscosity of 1.02) chips and polybutylene terephthalate chips (intrinsic viscosity of 1.10) were physically mixed in different proportions, and the mixed polyester chips were put into the extruder from the feed port. The extruder is a single-screw extruder, which is divided into three temperature zones. The mixed polyester raw materials are heated and sheared in the extruder, melted and then passed through the spinning assembly and extruded from the spinneret. The first drawing roll and the second drawing roll are drawn and finally wound to form a fully drawn yarn (FDY) sample.

[0085] The polytrimethylene terephthalate chips alone were used as the raw material and put into the extruder, as the co...

Embodiment 2

[0121] Example 2: Samples and properties of PTT mixed with different polyesters

[0122] Referring to the method in Example 1, PTT / PBT mixed polyester chemical fibers and PTT / PET mixed polyester chemical fibers were obtained. The chemical fiber using PTT alone was used as a control. The yarns of the above three kinds of chemical fiber materials are prepared by the same processing technology, and are further made into fabrics. Fabric specifications are 40s (40).

[0123] The obtained fabric was dyed, and the dyeing was carried out at a temperature of 90° C., and the procedures of heating, cooling and post-treatment were referred to the steps in Example 1. The dye was 3% Navy Blue. The dyed fabric is obtained by finishing after dyeing. Dyeing effect such as figure 1 shown.

[0124] For the above-mentioned PTT / PBT mixed polyester chemical fiber, PTT / PBT mixed polyester chemical fiber, and the control using PTT alone, the breaking strength, elongation at break, shrinkage of...

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Abstract

The invention relates to a chemical fiber material made of at least one polyester and at least one other polyester, a preparation method and application thereof. The chemical fiber material has acceptable physical characteristics such as good dyeing performance, good hand feeling and the like, has industrial feasibility and is relatively low in cost. The invention also relates to fabrics and / or other products made of the chemical fiber material.

Description

technical field [0001] The present application relates to a chemical fiber material made of mixed polyester, a preparation method and its application. The chemical fiber material uses at least one polyester and at least another polyester as raw materials, and physically mixes different polyesters before spinning to make a mixed polyester chemical fiber material. The present application also relates to yarns, fabrics and / or other articles made using the above chemical fiber materials. Background technique [0002] When polyester is used as a textile material, in order to ensure the uniformity of spinning quality, a single-component polyester is usually pursued, and the mixing of different polyesters is avoided as much as possible. Because it is generally accepted that physical mixing of different polyesters adversely affects the uniformity of the fibers, which in turn affects the properties of the manmade fiber material, such as dyeing properties. [0003] Common polyester ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F8/14D02G3/02D02G3/04
CPCD01F8/14D02G3/02D02G3/04D10B2211/02D10B2331/02D10B2201/02D10B2321/10D10B2201/24D10B2331/04D06P1/16D06P3/54
Inventor 胡腾蛟邵晓丛包建鑫张丽芝
Owner DU PONT CHINA HLDG CO LTD
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