Preparation method of colored polyester yarn

Abstract

The invention relates to a preparation method of colored polyester yarn. The preparation method comprises the steps that color master batch and natural-color slices are evenly mixed in proportion, areconveyed into a screw extruder and are heated and melted in the screw extruder to be prepared into a spinning melt, the mixture is sprayed out of spinneret orifices and cooled to form colored primarypolyester yarn, and the colored primary polyester yarn is subjected to oiling and wound into a colored primary polyester yarn roll; then, the draw texturing yarn operation is carried out to obtain colored polyester pre-oriented yarn; the colored polyester pre-oriented yarn is subjected to networked self-detwisting to be processed into a colored polyester yarn semi-finished product, and the colored polyester yarn semi-finished product is wound into a colored polyester yarn semi-finished product roll; the colored polyester yarn semi-finished product is drawn again, the re-drawn colored polyester yarn semi-finished product is subjected to heat setting processing at the temperature of 170-210 DEG C, and the colored polyester yarn is obtained. Meanwhile, the invention further relates to a preparation method of the color master batch and the 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. technical background

[0002] 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.

[0003] In the process of traditional all-polyester fabrics, the pre-shaped gray cloth is immersed in a dye so...

Examples

preparation example Construction

[0028] In this embodiment, the preparation method of the colored polyester yarn involved in the present invention comprises the following steps:

[0029] S1. Prepare color masterbatch suitable for textile technology. Wherein, the preparation steps of above-mentioned masterbatch are as follows:

[0030]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

[0054] 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

[0060]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.

[0061] After the color masterbatch and the natural color chip...

technical field

[0001] The invention relates to the technical field of polyester textile processing, in particular to a method for preparing colored polyester yarn. technical background

[0002] 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.

[0003] In the process of traditional all-polyester fabrics, the pre-shaped gray cloth is immersed in a dye so...

Examples

preparation example Construction

[0028] In this embodiment, the preparation method of the colored polyester yarn involved in the present invention comprises the following steps:

[0029] S1. Prepare color masterbatch suitable for textile technology. Wherein, the preparation steps of above-mentioned masterbatch are as follows:

[0030]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

[0054] 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

[0060]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.

[0061] After the color masterbatch and the natural color chip...

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