Preparation method of lodging-resistant multi-difference polyester low-elastic filament

Abstract

The invention relates to a preparation method of a lodging-resistant multi-difference polyester low elastic filament. The preparation method comprises the following steps: firstly, mixing nano sepiolite fibers, organic magnesium hydroxide whisker, organic barium sulfate nano powder, ethylene glycol, propylene glycol, p-hydroxybenzoic acid and sodium germanate to obtain a high-modulus composite alcohol solution; secondly, mixing organic wollastonite nano needle-like fibers, mica powder, polyethylene glycol, the propylene glycol, an antioxidant 1010, ethylene glycol antimony and protonated agent phosphoric acid to obtain a high-modulus composite promoter; thirdly, co-polycondensing the high-modulus composite multifunctional alcohol solution and the high-modulus composite promoter with purified terephthalic acid and the ethylene glycol to obtain high-modulus modified polyester; a melt of the high-modulus modified polyester is sprayed from a T-shaped spinneret orifice in a spinneret plate; the lodging-resistant multi-difference polyester low elastic filament is prepared by a special cooling mode and a low-temperature texturing process. The fiber prepared by the preparation method has multiple different properties of different crystallization, different orientation and different shrinkage; after different shrinkage, the appearance is good, and a brushed fabric prepared from the lodging-resistant multi-difference polyester low elastic filament is not easy to lodge.

Description

technical field

[0001] The invention relates to a manufacturing method of anti-lodging polyisopolyester low elastic yarn, belonging to the technical field of textile fiber manufacturing. Background technique

[0002] The flat yarns produced at present have a high degree of irregularity, and the gloss is also good when making plush fabrics.

[0003] In addition, the more common iso-shrinkage fibers on the market at present are mostly prepared by the method of network plying of two or three filaments with different shrinkage ratios; they are also prepared by the method of parallel bicomponent spinning.

[0004] Chinese patent 103484967A discloses a preparation method of copolyester melt ultra-high-speed direct spinning controllable multi-isolation shrinkage composite fiber, Chinese patent 102140700A discloses a preparation method of double iso-shrinkage mixed fiber, Chinese patent 101962838A discloses A preparation method of polyester superfine differential shrinkage composit...

Examples

Embodiment 1

[0033] Embodiment 1: a kind of manufacture method of anti-lodging polyisopolyester low elastic yarn, adopts the following steps:

[0034] A) In parts by mass, 2 parts of nanoscale sepiolite fibers, 2 parts of organic magnesium hydroxide whiskers with characterization parameters of 5um in diameter and 25um in length, 2 parts of organic barium sulfate nano-powder, 75 parts of ethylene glycol Alcohol EG, 15 parts of 1,3-propanediol PDO, 6 parts of p-hydroxybenzoic acid, and 0.3 parts of sodium germanium were mixed, and the mixed solution was closed and ground in a stirring ball mill at 70°C for 4 hours to obtain a high-modulus complex alcohol solution, 70 ℃ heat preservation for use;

[0035] B) In parts by mass, 1 part of organized wollastonite nano-needle fibers with an aspect ratio of 14:0.5, 1 part of 800-mesh mica powder, 10 parts of polyethylene glycol PEG with a molecular weight of 10,000, 10 parts of 1 , 3-Propanediol PDO, 0.4 part of antioxidant 1010, 0.4 part of ethyle...

Embodiment 2

[0039] Embodiment 2: a kind of manufacture method of anti-lodging polyisopolyester low elastic yarn, adopts the following steps:

[0040] A) In parts by mass, 1 part of nanoscale sepiolite fibers, 1 part of organic magnesium hydroxide whiskers with a characteristic parameter diameter of 0.2um and a length of 10um, 1 part of organic barium sulfate nano-powder, 65 parts of ethyl acetate Diol EG, 15 parts of 1,3-propanediol PDO, 4 parts of p-hydroxybenzoic acid, and 0.2 part of sodium germanium were mixed, and the mixed solution was subjected to closed grinding reaction in a stirring ball mill at 70°C for 2 hours to obtain a high-modulus complex alcohol solution. 70 ℃ insulation for use;

[0041] B) In parts by mass, 2 parts of organized wollastonite nano-needle fibers with an aspect ratio of 16:1.5, 2 parts of 800-mesh mica powder, 8 parts of polyethylene glycol PEG with a molecular weight of 10,000, 10 parts of 1 , 3-Propanediol PDO, 0.2 part of antioxidant 1010, 0.2 part of e...

Embodiment 3

[0045] Embodiment 3: a kind of manufacture method of anti-lodging polyisopolyester low elastic yarn, adopts the following steps:

[0046] A) In parts by mass, 2 parts of nanoscale sepiolite fibers, 1 part of organic magnesium hydroxide whiskers with a characteristic parameter diameter of 0.2 um and a length of 25 um, 1 part of organic barium sulfate nano-powder, 70 parts of ethyl acetate Diol EG, 13 parts of 1,3-propanediol PDO, 5 parts of p-hydroxybenzoic acid, and 0.2 part of sodium germanium were mixed, and the mixed solution was subjected to closed grinding reaction in a stirring ball mill at 70°C for 3 hours to obtain a high-modulus complex alcohol solution. 70 ℃ insulation for use;

[0047] B) In parts by mass, 1.5 parts of organized wollastonite nano-needle fibers with an aspect ratio of 15:1, 1.5 parts of 800-mesh mica powder, 9 parts of polyethylene glycol PEG with a molecular weight of 10,000, 8 parts of 1 , 3-Propanediol PDO, 0.3 part of antioxidant 1010, 0.3 part ...

technical field

[0001] The invention relates to a manufacturing method of anti-lodging polyisopolyester low elastic yarn, belonging to the technical field of textile fiber manufacturing. Background technique

[0002] The flat yarns produced at present have a high degree of irregularity, and the gloss is also good when making plush fabrics.

[0003] In addition, the more common iso-shrinkage fibers on the market at present are mostly prepared by the method of network plying of two or three filaments with different shrinkage ratios; they are also prepared by the method of parallel bicomponent spinning.

[0004] Chinese patent 103484967A discloses a preparation method of copolyester melt ultra-high-speed direct spinning controllable multi-isolation shrinkage composite fiber, Chinese patent 102140700A discloses a preparation method of double iso-shrinkage mixed fiber, Chinese patent 101962838A discloses A preparation method of polyester superfine differential shrinkage composit...

Examples

Embodiment 1

[0033] Embodiment 1: a kind of manufacture method of anti-lodging polyisopolyester low elastic yarn, adopts the following steps:

[0034] A) In parts by mass, 2 parts of nanoscale sepiolite fibers, 2 parts of organic magnesium hydroxide whiskers with characterization parameters of 5um in diameter and 25um in length, 2 parts of organic barium sulfate nano-powder, 75 parts of ethylene glycol Alcohol EG, 15 parts of 1,3-propanediol PDO, 6 parts of p-hydroxybenzoic acid, and 0.3 parts of sodium germanium were mixed, and the mixed solution was closed and ground in a stirring ball mill at 70°C for 4 hours to obtain a high-modulus complex alcohol solution, 70 ℃ heat preservation for use;

[0035] B) In parts by mass, 1 part of organized wollastonite nano-needle fibers with an aspect ratio of 14:0.5, 1 part of 800-mesh mica powder, 10 parts of polyethylene glycol PEG with a molecular weight of 10,000, 10 parts of 1 , 3-Propanediol PDO, 0.4 part of antioxidant 1010, 0.4 part of ethyle...

Embodiment 2

[0039] Embodiment 2: a kind of manufacture method of anti-lodging polyisopolyester low elastic yarn, adopts the following steps:

[0040] A) In parts by mass, 1 part of nanoscale sepiolite fibers, 1 part of organic magnesium hydroxide whiskers with a characteristic parameter diameter of 0.2um and a length of 10um, 1 part of organic barium sulfate nano-powder, 65 parts of ethyl acetate Diol EG, 15 parts of 1,3-propanediol PDO, 4 parts of p-hydroxybenzoic acid, and 0.2 part of sodium germanium were mixed, and the mixed solution was subjected to closed grinding reaction in a stirring ball mill at 70°C for 2 hours to obtain a high-modulus complex alcohol solution. 70 ℃ insulation for use;

[0041] B) In parts by mass, 2 parts of organized wollastonite nano-needle fibers with an aspect ratio of 16:1.5, 2 parts of 800-mesh mica powder, 8 parts of polyethylene glycol PEG with a molecular weight of 10,000, 10 parts of 1 , 3-Propanediol PDO, 0.2 part of antioxidant 1010, 0.2 part of e...

Embodiment 3

[0045] Embodiment 3: a kind of manufacture method of anti-lodging polyisopolyester low elastic yarn, adopts the following steps:

[0046] A) In parts by mass, 2 parts of nanoscale sepiolite fibers, 1 part of organic magnesium hydroxide whiskers with a characteristic parameter diameter of 0.2 um and a length of 25 um, 1 part of organic barium sulfate nano-powder, 70 parts of ethyl acetate Diol EG, 13 parts of 1,3-propanediol PDO, 5 parts of p-hydroxybenzoic acid, and 0.2 part of sodium germanium were mixed, and the mixed solution was subjected to closed grinding reaction in a stirring ball mill at 70°C for 3 hours to obtain a high-modulus complex alcohol solution. 70 ℃ insulation for use;

[0047] B) In parts by mass, 1.5 parts of organized wollastonite nano-needle fibers with an aspect ratio of 15:1, 1.5 parts of 800-mesh mica powder, 9 parts of polyethylene glycol PEG with a molecular weight of 10,000, 8 parts of 1 , 3-Propanediol PDO, 0.3 part of antioxidant 1010, 0.3 part ...

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