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Polyester filament, composite yarn and fabric, and preparation method thereof

A polyester filament and composite yarn technology, applied in the direction of single-component polyester rayon, fabric, filament/thread forming, etc., can solve the problems of poor light fastness, toxicity, light color, etc. The drying is uniform, the process is simple and easy, and the effect of improving economic efficiency

Inactive Publication Date: 2007-01-31
张学军 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to reports, the printing and dyeing industry once invented a dye for low-temperature dyeing of polyester, which caused a sensation, but later found that the dye carrier was poisonous, and had defects such as light color and poor light fastness.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Embodiment 1: the preparation of polyester filament

[0040] On a conventional polyester filament spinning machine equipped with a tension controller, the spinning speed is controlled to be 3200m / min, the specification is 30d / 15f, and the tension is controlled to be 1 dyne / cm in the fiber neck embrittlement zone 2 , the volume crystallinity is 40%, the obtained polyester filament can be dyed at normal temperature and pressure, and the dyeing temperature is 85°C.

Embodiment 2

[0041] Embodiment 2: the preparation of polyester filament

[0042] On a conventional polyester filament spinning machine equipped with a tension controller, the spinning speed is controlled to be 4500 m / min, the specification is 30d / 15f, and the tension is controlled to be 2 dynes / cm in the fiber neck embrittlement zone 2 , the volume crystallinity is 50.4%, the obtained polyester filament can be dyed at normal temperature and pressure, and the dyeing temperature is 95°C.

Embodiment 3

[0043] Embodiment 3: the preparation of composite yarn

[0044] The polyester filament and cotton of Example 1 are wrapped on conventional spinning equipment under the cooperation of a tension controller, and the twist number is 500-800 twists / m to make a composite yarn of polyester filament and cotton.

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Abstract

The present invention produces one kind of polyester filament in conventional polyester filament spinning apparatus via control of the spinning speed and tension during melt spinning. The polyester filament has strength of 3-5 CN / dtex, elongation at breaking of 30-50 %, boiling water shrinkage of 8-20 %, and initial modulus of 50-70 % of conventional polyester filament. The polyester filament may be wrapped with natural cotton, wool, cashmere and other natural fiber in a conventional spinning frame to obtain embedded composite polyester yarn in multiple-dimensional structure. The fabric of the composite polyester yarn in multiple-dimensional structure may be co-dyed at normal temperature and normal pressure in high dyeing ability, deep color and high color fastness. The fabric has high evenness, soft hand feeling, bright color, comfortable wearing, appearance similar to natural fiber fabric and performance superior to natural fiber fabric.

Description

technical field [0001] The invention relates to a polyester filament which can be integrally dyed with natural fibers at normal temperature and pressure, and its composite yarn and fabric, and also relates to their preparation method. Background technique [0002] As we all know, polyester fiber has the advantages of being crisp, strong, washable and durable, but compared with natural fibers, it has disadvantages such as easy fluffing, pilling, and poor wearing comfort. Therefore, polyester blended fabrics came into being. Blended fabrics not only have the comfort, soft feel, moisture absorption and breathability of natural fibers, but also have the characteristics of crispness, drape, anti-wrinkle and shrinkage of synthetic fibers, and can be machine washed and ironed without ironing. However, most countries in the world still adopt the process of uniformly mixing polyester staple fibers and natural fibers, and then spinning and making blended fabrics. This traditional woo...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01D5/00D01F6/62D02G3/04D02G3/36D03D15/00D06P3/87D03D15/217D03D15/233D03D15/283D03D15/47
Inventor 张学军张贵彬
Owner 张学军
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