A kind of preparation method of colored polyester yarn

A technology of colored polyester and polyester yarn, which is used in the melting of filament raw materials, filament forming treatment, feeding solution to spinnerets, etc. Color difference, color fastness and stretchability, etc., to achieve the effect of saving pollution control costs, reducing dyeing costs, and small color difference

Active Publication Date: 2020-09-22
江苏苏美达纺织有限公司
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  • Abstract
  • Description
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Problems solved by technology

[0006] However, in production and application, factors such as the quality defect of the masterbatch and the temperature of the screw extruder directly affect the color difference of the polyester yarn, thereby affecting the quality of the polyester yarn and its follow-up products
In practice, traditional manufacturers directly use commercially available color masterbatch products, but commercially available color masterbatches usually have the following problems: since commercially available color masterbatches are usually used in plastic products, they directly affect the performance of spun fiber products, especially It is a problem that affects the color difference, color fastness and elongation of polyester yarn

Method used

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  • A kind of preparation method of colored polyester yarn
  • A kind of preparation method of colored polyester yarn
  • A kind of preparation method of colored polyester yarn

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preparation example Construction

[0029] In this embodiment, the preparation method of the colored polyester yarn involved in the present invention comprises the following steps:

[0030] S1. Prepare color masterbatch suitable for textile technology. Wherein, the preparation steps of above-mentioned masterbatch are as follows:

[0031]S11. Weigh the components of toner, carrier, dispersant, etc. according to the process requirements. Wherein, the amount of the above-mentioned toner accounts for about 15% to 60% of the mass of the masterbatch. Color powder can choose organic pigment or inorganic pigment. Commonly used organic pigments are: phthalocyanine red, phthalocyanine blue, phthalocyanine green, light fast red, macromolecular red, macromolecular yellow, permanent yellow, permanent purple, azo red, etc. Commonly used inorganic pigments are: cadmium Red, Cadmium Yellow, Titanium Dioxide, Carbon Black, Iron Oxide Red, Iron Oxide Yellow, etc. The added amount of the above-mentioned carrier is about 30% to...

Embodiment 1

[0055] Weigh the toner accounting for 15% of the mass of the masterbatch, the carrier accounting for 70% of the mass of the masterbatch, the main dispersant accounting for 10% of the mass of the masterbatch, and the auxiliary dispersing agent accounting for 5% of the mass of the masterbatch, and add an appropriate amount of water for grinding Mix to obtain a fine color paste. Then mix the fine color paste with the carrier, water and auxiliary dispersant into the phase inversion tank, then add an appropriate amount of organic solvent for mixing, evaporate the water in it to obtain a thick color material, wash the thick color material with water and put it in the Dry in an oven at 90°C for 5h. The organic solvent in the dried concentrated color material is recovered to obtain a pre-dispersed pigment carrier. Melt and extrude according to the carrier melting temperature of the color masterbatch to obtain a strip of the color masterbatch. Cut the strips into pellets to obtain ma...

Embodiment 2

[0061]Weigh the toner accounting for 60% of the mass of the masterbatch, the carrier accounting for 30% of the mass of the masterbatch, and the main dispersant accounting for 10% of the mass of the masterbatch, add an appropriate amount of water for grinding and mixing, and obtain a fine color paste. Then mix the fine color paste with the carrier, water and auxiliary dispersant into the phase inversion tank, then add an appropriate amount of organic solvent for mixing, evaporate the water in it to obtain a thick color material, wash the thick color material with water and put it in the Dry in an oven at 160°C for 3h. The organic solvent in the dried concentrated color material is recovered to obtain a pre-dispersed pigment carrier. Melt and extrude according to the carrier melting temperature of the color masterbatch to obtain a strip of the color masterbatch. Cut the strips into pellets to obtain masterbatches.

[0062] After the color masterbatch and the natural color chip...

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Abstract

The invention relates to a preparation method of colored polyester yarn, comprising: uniformly mixing color masterbatch and natural color chips in proportion, feeding them into a screw extruder, heating and melting them in the screw extruder to prepare a spinning melt, and It is sprayed out from the spinneret hole and cooled to become colored primary polyester yarn, and after oiling treatment, it is wound into colored primary polyester yarn roll, and then it is stretched to obtain colored polyester pre-oriented yarn, and the colored polyester pre-oriented yarn is networked Self-twisting processed into colored semi-finished polyester yarn, and wound into colored semi-finished polyester yarn roll; the colored semi-finished polyester yarn is stretched again, and the colored semi-finished polyester yarn after stretching is stretched again at a temperature of 170 ° C ~ 210 ° C Heat setting process to obtain colored finished polyester filaments. At the same time, the invention also relates to a preparation method of the color masterbatch and colored polyester yarn.

Description

technical field [0001] The invention relates to the technical field of polyester textile processing, in particular to a method for preparing colored polyester yarn. [0002] technical background [0003] Traditional textile dyeing usually adopts the method of piece dyeing after spinning. For all-polyester plush knitted fabrics, the following traditional process is adopted: gray cloth → (ironing →) presetting → dyeing → softening → drying → napping → combing → (ironing →) shearing → shaker → heat setting → punching roll. For all-polyester non-plush knitted fabrics, the following traditional processes are adopted: gray cloth → presetting → dyeing → softening → drying → heat setting → rolling. For all-polyester brushed woven fabrics, the following traditional process is adopted: gray cloth→oil removal→presetting→dyeing→softening→drying→sanding→shearing→heat setting→rolling. [0004] In the process of traditional all-polyester fabrics, the pre-shaped gray cloth is immersed in ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01D1/06D01D1/04D02G1/00D01F6/92D01F1/04
CPCD01D1/04D01D1/065D01F1/04D01F6/92D02G1/00D10B2331/04
Inventor 王申涛王重阳鲁济龙
Owner 江苏苏美达纺织有限公司
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