CN107988647B - Preparation method of polyester porous yarn - Google Patents

Preparation method of polyester porous yarn Download PDF

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Publication number
CN107988647B
CN107988647B CN201711340299.5A CN201711340299A CN107988647B CN 107988647 B CN107988647 B CN 107988647B CN 201711340299 A CN201711340299 A CN 201711340299A CN 107988647 B CN107988647 B CN 107988647B
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polyester
oil agent
oil
yarn
oiling
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CN107988647A (en
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王山水
丁竹君
王雪
卓怀智
魏德新
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Jiangsu Hengli Chemical Fiber Co Ltd
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Jiangsu Hengli Chemical Fiber Co Ltd
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/78—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolycondensation products
    • D01F6/84—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolycondensation products from copolyesters
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/24—Formation of filaments, threads, or the like with a hollow structure; Spinnerette packs therefor
    • D01D5/247—Discontinuous hollow structure or microporous structure
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/02—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with hydrocarbons
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
    • D06M13/11—Compounds containing epoxy groups or precursors thereof
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
    • D06M13/224—Esters of carboxylic acids; Esters of carbonic acid
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/244—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing sulfur or phosphorus
    • D06M13/248—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing sulfur or phosphorus with compounds containing sulfur
    • D06M13/256—Sulfonated compounds esters thereof, e.g. sultones
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/244—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing sulfur or phosphorus
    • D06M13/282—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing sulfur or phosphorus with compounds containing phosphorus
    • D06M13/292—Mono-, di- or triesters of phosphoric or phosphorous acids; Salts thereof
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/53—Polyethers
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/16—Synthetic fibres, other than mineral fibres
    • D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M2101/32—Polyesters

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Artificial Filaments (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

The invention relates to a preparation method of a polyester porous filament, which is characterized in that a polyester melt is subjected to metering, extruding by a porous spinneret plate, cooling, oiling, stretching, heat setting and winding to prepare the polyester porous filament, wherein the number of holes of the porous spinneret plate is 144-288, an oiling agent for oiling contains crown ether, the content of the crown ether is 67.30-85.58 wt%, the thermal weight loss of the oiling agent is less than 15wt% after the oiling agent is heated at 200 ℃ for 2 hours, and the kinematic viscosity of the oiling agent is 27.5-30.1 mm at (50 +/-0.01) DEG C2The kinematic viscosity of the oil agent after being prepared into 10wt% emulsion by water is 0.93-0.95 mm2And/s, the oil film strength of the oil agent is 121-127N. The preparation method is simple and reasonable, and the prepared product has the advantages of softness, fineness and good appearance texture.

Description

Preparation method of polyester porous yarn
Technical Field
The invention belongs to the field of fiber preparation, and relates to a preparation method of porous polyester yarns.
Background
Polyethylene terephthalate (PET) fibers have been developed rapidly since the advent due to their excellent properties, and their production has become the world's cap of synthetic fibers. The polyester fiber has a series of excellent performances such as high breaking strength, high elastic modulus, moderate resilience, excellent heat setting performance, good heat resistance, light resistance, acid resistance, alkali resistance, corrosion resistance and the like, and the fabric prepared from the polyester fiber has the advantages of good crease resistance, good stiffness and smoothness and the like, so the polyester fiber is widely applied to the fields of clothing, home textiles and the like.
Because most PET fibers have small dielectric constant, low moisture regain and high friction coefficient, a spin finish must be used in the spinning process. The main component of the oil agent is surfactant, and can form directional adsorption layer, i.e. oil film, on the surface of chemical fibre, on one hand, the hydrophilic group of the oil film is oriented to space, and can adsorb moisture in the air, and on the fibre surface a continuous water film can be formed, so that the charged ions can be migrated on the surface of the fibre, and the accumulation of static charge produced by friction between the fibres can be reduced, so that the surface resistance of the fibre can be reduced, and the conductivity of fibre can be raised, on the other hand, the oil film isolating fibre can produce a certain affinity for fibre, and can make it possess a certain concentration property and do not scatter, and in addition, the oil film also can give fibre a certain smoothness, so that the fibre can not be damaged in the course of friction, and has good hand feeling, and can smoothly pass through the operation procedures of winding, drawing and drying, etc. when spinning, the electrostatic action in the course of textile processing can be eliminated, and the, The roller, the cylinder and other adverse phenomena reduce the generation of broken filaments and broken ends, and ensure the quality of fiber products.
The friction behavior of the fiber can be changed after the oil film on the surface of the fiber is broken at high temperature, high speed and certain pressure, so that the friction force is increased, and other problems such as broken filaments and broken ends of the fiber are caused. Along with the development of high speed, super high speed and multifunctional fiber of polyester filament, the development of an oil solution with good heat resistance, low viscosity, high oil film strength, good smoothness and strong antistatic property is of great practical significance.
In the prior art, the specific surface area of the prepared fiber is reduced due to the increase of the number of holes of the spinneret plate, and the permeability of the oiling agent is reduced, so that the quality of the fiber is influenced.
Therefore, research on a preparation method of the soft and fine terylene porous yarn with good appearance texture is a problem to be solved at present.
Disclosure of Invention
The invention aims to solve the problems that the permeability of an oiling agent is poor, the friction coefficient between yarns is increased and the quality of the yarns is reduced due to small specific surface area of fibers in the prior art, and provides a preparation method of a polyester porous yarn which is soft, fine and good in appearance texture. The crown ether-containing oil agent is used, so that the heat resistance and the lubricity of the oil agent are improved, and the quality of fibers is improved.
In order to achieve the purpose, the invention adopts the technical scheme that:
the preparation method of the porous polyester yarn comprises the steps of weighing polyester melt, extruding by a porous spinneret plate, cooling, oiling, stretching, heat setting and winding to prepare the porous polyester yarn;
the number of holes of the multi-hole spinneret plate is 144-288;
the oil agent for oiling contains crown ether, the content of the crown ether is 67.30-85.58 wt%, the content of the crown ether in the oil agent needs to be kept within a certain range, the oil agent with low viscosity, good heat resistance and high oil film strength cannot be prepared if the addition amount of the crown ether is too low, and other performance indexes of the oil agent can be influenced if the addition amount of the crown ether is too high.
Crown ethers are heterocyclic organic compounds containing a plurality of ether groups. The wetting ability of the crown ether surfactant is larger than that of a corresponding open-chain compound, the crown ether has better solubilization, the solubility of the salt compound in the organic compound is lower, but the solubility of the organic matter of the salt compound is improved along with the addition of the crown ether. The common polyester compounds or polyethers in the oil agent have larger intermolecular action due to larger molecular weight and the action of hydrogen bonds, and show larger kinematic viscosity, and after the crown ether is added, the crown ether can be well compatible in the polyester compounds or polyether oil agent system, enters between polyester compounds or polyether molecular chains, shields the acting force between the molecular chains, and thus the viscosity of the oil agent system is reduced. Meanwhile, the antistatic agent of the chemical fiber oiling agent is mainly divided into anionic surfactant, cationic surfactant and amphoteric surfactant, most of which contain metal ions or exist in the form of salt, so that the compatibility of the antistatic agent and polyester compounds or polyethers in the oiling agent is ensured, and the addition of the crown ether improves the compatibility of the antistatic agent and the polyester compounds or polyethers due to the salt dissolution effect, thereby improving the strength of an oiling agent oil film and having great significance on the stability of spinning and the product holding capacity. Indexes of the oil agent are reflected by a comprehensive factor, so that a certain restriction is provided for the addition amount of crown ether, the advantages of heat resistance and oil film strength of the oil agent are not reflected sufficiently when the addition amount is too low, and other indexes are limited when the addition amount is too much.
As a preferred technical scheme:
according to the preparation method of the polyester porous yarn, the thermal weight loss of the oiling agent is less than 15wt% after the oiling agent is subjected to heating treatment at 200 ℃ for 2 hours, the crown ether has a higher volatile point and excellent heat-resistant stability, and the heat-resistant performance of the oiling agent introduced with the crown ether is also remarkably improved;
the kinematic viscosity of the oil agent is 27.5-30.1 mm at the temperature of (50 +/-0.01) ° C2The kinematic viscosity of the oil agent prepared from water into 10wt% emulsion is 0.93-0.95 mm2The crown ether can reduce the viscosity of the oil agent mainly because the crown ether has lower viscosity and is a bead-shaped micromolecule, and after the crown ether is introduced into the oil agent system, the crown ether can be well compatible in the polyester compound or polyether compound oil agent system and simultaneously enters between molecular chains of the polyester compound or polyether compound to shield the acting force between the molecular chains, so that the viscosity of the oil agent system is reduced;
the oil film strength of the oil agent is 121-127N, the oil film strength of the oil agent in the prior art is low and is generally about 110N, the main reason is that most of antistatic agents of the chemical fiber oil agent contain metal ions or exist in the form of salt, the compatibility of the antistatic agents and polyester compounds or polyether compounds in the oil agent is poor, and the crown ether can improve the oil film strength is mainly that salt solution effect can be generated after the crown ether is added, so that the compatibility of the antistatic agents and the polyester compounds or polyether compounds is improved, and the oil film strength of the oil agent is further improved;
the surface tension of the oil agent is 23.2-26.8 cN/cm, and the specific resistance is 1.0 × 108～1.8×108Ω·cm；
After oiling, the static friction coefficient between the fibers is 0.250-0.263, and the dynamic friction coefficient is 0.262-0.273;
after oiling, the static friction coefficient between the fiber and the metal is 0.202-0.210, and the dynamic friction coefficient is 0.320-0.332.
According to the preparation method of the porous polyester yarns, when the oiling agent is used, the oiling agent is prepared into the emulsion with the concentration of 10-20 wt% by using water.
According to the preparation method of the polyester porous yarn, the crown ether is 2-hydroxymethyl-12-crown-4, 15-crown-5 or 2-hydroxymethyl-15-crown-5.
In the preparation method of the porous polyester silk, the oil agent further comprises mineral oil, potassium phosphate, trimethylolpropane laurate and sodium alkyl sulfonate.
According to the preparation method of the polyester porous yarn, the mineral oil is one of mineral oils of 9# to 17 #;
the phosphate potassium salt is dodecyl phosphate potassium salt, isomeric tridecanol polyoxyethylene ether phosphate potassium salt or dodecatetradecanol phosphate potassium salt;
the sodium alkyl sulfonate is sodium dodecyl sulfonate, sodium pentadecyl sulfonate or sodium hexadecyl sulfonate.
The preparation method of the polyester porous yarn comprises the following steps: uniformly mixing crown ether, phosphate potassium salt, trimethylolpropane laurate and sodium alkyl sulfonate, adding the mixture into mineral oil, and uniformly stirring to obtain an oil agent; the addition amount of each component is as follows according to the parts by weight:
Figure BDA0001508223530000041
the mixing is carried out at normal temperature, the stirring temperature is 40-55 ℃, and the stirring time is 1-3 h.
According to the preparation method of the porous polyester yarns, the spinning process parameters of the porous polyester yarns are as follows:
spinning temperature: 280-290 ℃;
cooling temperature: 20-25 ℃;
network pressure: 0.20 to 0.30 MPa;
a roll speed: 2200 to 2600m/min
First roll temperature: 75-85 ℃;
two roll speed: 3600-3900 m/min;
temperature of the two rolls: 135-165 ℃;
speed of winding: 3550-3840 m/min;
the initial pressure of the spinning assembly is 120bar, and the pressure rise delta P is less than or equal to 0.6 bar/day.
According to the preparation method of the porous polyester yarns, the fineness of the porous polyester yarns is 75-150 dtex, the breaking strength is more than or equal to 3.8cN/dtex, the elongation at break is 33.0 +/-3.0%, the linear density deviation rate is less than or equal to 0.5%, the breaking strength CV value is less than or equal to 5.0%, the elongation at break CV value is less than or equal to 8.0%, the yarn unevenness CV value is less than or equal to 2.00%, the boiling water shrinkage rate is 7.5 +/-0.5%, the oil content is 0.90 +/-0.20%, and the dyeing uniformity is more than 4.5 grade.
According to the preparation method of the porous polyester yarns, the dyeing process of the porous polyester yarns comprises the following steps:
treating the polyester porous yarn with a nonionic surfactant at 60 ℃ for 30 minutes, dyeing in a high-temperature high-pressure machine, dyeing at 60 ℃, and dyeing at constant temperature of 90 ℃, 100 ℃, 110 ℃ and 120 ℃ for 1 hour;
wherein the disperse dye for dyeing is disperse red 3B, disperse blue SE-2R or disperse turquoise blue S-GL, the dye consumption is 2.0 percent (o.w.f), the concentration of a dispersant NNO in the dye liquor is 1.2g/L, the pH value of the dye liquor is 5, and the bath ratio is 1: 50.
The invention mechanism is as follows:
the crown ether is introduced into the oil agent to prepare the oil agent with low viscosity, good heat resistance and higher oil film strength. In the prior art, the higher viscosity of the oil agent is mainly due to the fact that the oil agent contains a common polyester compound or polyether compound, the intermolecular action of the compound is larger due to the larger molecular weight and the action of hydrogen bonds, the kinematic viscosity is larger, so that the viscosity of the oil agent is higher, the viscosity of the oil agent can be obviously reduced after crown ether is added, the crown ether is mainly due to the fact that the viscosity of the crown ether is lower and is bead-shaped micromolecule, the crown ether can be well compatible in a polyester compound or polyether oil agent system and simultaneously enters between molecular chains of the polyester compound or polyether compound to shield acting force between the molecular chains, and therefore the viscosity of the oil agent system is reduced. In the prior art, the oil film strength of the oil agent is low mainly because the antistatic agent of the chemical fiber oil agent mostly contains metal ions or exists in the form of salt, so that the compatibility of the antistatic agent and polyester compounds or polyethers in the oil agent is poor, and the crown ether can improve the oil film strength mainly because the crown ether can generate a salt solution effect after being added, so that the compatibility of the antistatic agent and the polyester compounds or polyethers is improved, and the oil film strength of the oil agent is further improved. In addition, the crown ether has higher volatile point and excellent heat-resistant stability, and the heat-resistant performance of the oil agent introduced with the crown ether is also obviously improved.
The oil used in the invention has low viscosity, high permeability and good lubricity, and can enable the protofilament to smoothly pass through spinning. And a protective film with high strength can be formed on the surface of the fiber protofilament, so that the fiber damage of the protofilament in the spinning process is prevented. The fiber yarn can not be broken due to the generation of static electricity in the spinning process, and the product quality is not influenced, so that the finally prepared composite yarn has excellent performances of softness, fineness, good elasticity and high quality.
Has the advantages that:
(1) according to the preparation method of the porous polyester yarns, the preparation process is simple and reasonable, and the prepared drawn yarns have the advantages of softness, fineness and good appearance texture;
(2) according to the preparation method of the porous polyester yarns, the porous spinneret plate is adopted, so that the obtained fibers are thinner and have better softness;
(3) the preparation method of the porous polyester yarns has simple and reasonable preparation process, high oil permeability and less produced fiber broken yarns;
(4) according to the preparation method of the porous polyester yarns, the oiling agent containing the crown ether used in the oiling process has the characteristics of low viscosity, good heat resistance, high oil film strength, good smoothness and strong antistatic property, and the spinning stability and the fiber processability are improved.
Detailed Description
The invention will be further illustrated with reference to specific embodiments. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.
Example 1
A preparation method of polyester porous yarn comprises the following specific steps:
(1) preparation of oiling oil agent: uniformly mixing 2-hydroxymethyl-12-crown-4 with dodecyl phosphate potassium salt, trimethylolpropane laurate and sodium dodecyl sulfate at normal temperature, adding into No. 9 mineral oil, and uniformly stirring at 40 ℃ for 1h to obtain an oil agent; the addition amount of each component is as follows according to the parts by weight: 2 parts of No. 9 mineral oil; 10 parts of trimethylolpropane laurate; 2-hydroxymethyl-12-crown-490 parts; 8 parts of dodecyl phosphate potassium salt; and 3 parts of sodium dodecyl sulfate. The content of crown ether in the prepared oil agent is 79.6 wt%, the high temperature resistance of the oil agent is excellent, and the thermal weight loss is 14.5 wt% after the oil agent is heated for 2 hours at 200 ℃; the viscosity of the oil agent is low, and the kinematic viscosity is 29.6mm at the temperature of (50 +/-0.01) ° C2(s) a kinematic viscosity of 0.93mm after preparation with water as an emulsion having a concentration of 10% by weight2The oil has high oil film strength of 125N, surface tension of 24.8cN/cm, specific resistance of 1.3 × 108Omega cm, coefficient of static friction (mu) between fibres (F/F) after oilings) 0.255, coefficient of dynamic friction (. mu.)d) 0.266, coefficient of static friction (. mu.) between fiber and metal (F/M)s) 0.203, coefficient of dynamic friction (. mu.)d) 0.320, and the prepared oil agent is prepared into an emulsion with the concentration of 15wt% by using water when in use;
(2) and (3) carrying out metering, multi-hole spinneret plate extrusion, cooling, oiling, stretching, heat setting and winding on the polyester melt to obtain the polyester multi-hole yarn, wherein the number of holes of the multi-hole spinneret plate is 158.
The dyeing process of the polyester porous yarn comprises the following steps:
treating the polyester porous yarn with a nonionic surfactant at 60 ℃ for 30 minutes, dyeing in a high-temperature high-pressure press, dyeing at 60 ℃, heating to 90 ℃, 100 ℃, 110 ℃ and 120 ℃ for 1 hour at constant temperature, wherein the disperse dye for dyeing is disperse red 3B, disperse blue SE-2R or disperse turquoise blue S-GL, the dye consumption is 2.0% (o.w.f), the concentration of NNO (dispersant) in the dye solution is 1.2g/L, the pH value of the dye solution is 5, and the bath ratio is 1: 50.
The spinning process parameters of the polyester porous yarn are shown in the table 1.
The fineness of the prepared polyester porous yarn is 80dtex, the breaking strength is 3.9cN/dtex, the elongation at break is 30.0%, the linear density deviation rate is 0.42%, the breaking strength CV value is 4.9%, the elongation at break CV value is 7.7%, the yarn evenness CV value is 1.98%, the boiling water shrinkage is 7.0%, the oil content is 1.10%, and the dyeing uniformity is 4.5 grade.
Example 2
A preparation method of polyester porous yarn comprises the following specific steps:
(1) preparation of oiling oil agent: uniformly mixing 15-crown ether-5, isotridecanol polyoxyethylene ether phosphate potassium salt, trimethylolpropane laurate and sodium pentadecylsulfonate at normal temperature, adding into 10# mineral oil, and uniformly stirring at 43 ℃ for 1.5h to obtain an oil agent; the addition amount of each component is as follows according to the parts by weight: 2 parts of No. 10 mineral oil; 15 parts of trimethylolpropane laurate; 15-crown ether-570 parts; 10 parts of isomeric tridecanol polyoxyethylene ether phosphate potassium salt; and 7 parts of sodium pentadecylsulfonate. The prepared oil agent has crown ether content of 67.30 wt%, excellent high temperature resistance, thermal weight loss of 13 wt% after heating treatment at 200 deg.C for 2h, low viscosity, and kinematic viscosity of 28.1mm at (50 + -0.01) ° C2(s) a kinematic viscosity of 0.93mm after preparation with water as an emulsion having a concentration of 10% by weight2(s) 123N, which is a high oil film strength of the oil agent, 25.1cN/cm, which is a surface tension of the oil agent, and 1.5 × 10 which is a specific resistance8Omega cm, coefficient of static friction (mu) between fibres (F/F) after oilings) 0.257, coefficient of dynamic friction (. mu.)d) 0.265, fiber after oilingCoefficient of static friction (. mu.) with metal (F/M)s) 0.205, coefficient of dynamic friction (. mu.)d) 0.323, the prepared oil agent is prepared into emulsion with the concentration of 14 weight percent by water when in use;
(2) and (3) carrying out metering, multi-hole spinneret plate extrusion, cooling, oiling, stretching, heat setting and winding on the polyester melt to obtain the polyester multi-hole yarn, wherein the number of holes of the multi-hole spinneret plate is 176.
The dyeing process of the polyester porous yarn comprises the following steps:
treating the polyester porous yarn with a nonionic surfactant at 60 ℃ for 30 minutes, dyeing in a high-temperature high-pressure press, dyeing at 60 ℃, heating to 90 ℃, 100 ℃, 110 ℃ and 120 ℃ for 1 hour at constant temperature, wherein the disperse dye for dyeing is disperse red 3B, disperse blue SE-2R or disperse turquoise blue S-GL, the dye consumption is 2.0% (o.w.f), the concentration of NNO (dispersant) in the dye solution is 1.2g/L, the pH value of the dye solution is 5, and the bath ratio is 1: 50.
The spinning process parameters of the polyester porous yarn are shown in the table 1.
The fineness of the prepared polyester porous yarn is 100dtex, the breaking strength is 4.2cN/dtex, the elongation at break is 30.0%, the linear density deviation rate is 0.49%, the breaking strength CV value is 4.5%, the elongation at break CV value is 7.6%, the yarn evenness CV value is 1.94%, the boiling water shrinkage is 7.0%, the oil content is 0.90%, and the dyeing uniformity is 4.5 grade.
Example 3
A preparation method of polyester porous yarn comprises the following specific steps:
(1) preparation of oiling oil agent: uniformly mixing 2-hydroxymethyl-15-crown-5 with potassium dodecatetradecanol phosphate, trimethylolpropane laurate and sodium pentadecylsulfonate at normal temperature, adding into No. 11 mineral oil, and uniformly stirring at 48 ℃ for 3h to obtain an oil solution; the addition amount of each component is as follows according to the parts by weight: 8 parts of No. 11 mineral oil; 10 parts of trimethylolpropane laurate;
2-hydroxymethyl-15-crown-585 parts; 11 parts of potassium dodecatetradecanol phosphate; 5 parts of sodium pentadecylsulfonate. The content of crown ether in the prepared oil agent is 70.83 wt%, the high temperature resistance of the oil agent is excellent, the thermal weight loss is 11 wt% after the oil agent is heated for 2 hours at 200 ℃,the viscosity of the oil agent is low, and the kinematic viscosity is 30.1mm at the temperature of (50 +/-0.01) ° C2(s) a kinematic viscosity of 0.94mm after preparation with water as an emulsion having a concentration of 10% by weight2(s) 125N, the oil film strength is high, the surface tension of the oil is 23.2cN/cm, and the specific resistance is 1.8 × 108Omega cm, coefficient of static friction (mu) between fibres (F/F) after oilings) 0.250, coefficient of dynamic friction (. mu.)d) 0.272, coefficient of static friction (. mu.) between fiber and metal (F/M) after oilings) 0.209, coefficient of dynamic friction (. mu.)d) 0.329, and the prepared oil agent is prepared into emulsion with the concentration of 10wt% by using water when in use;
(2) and (3) carrying out metering, multi-hole spinneret plate extrusion, cooling, oiling, stretching, heat setting and winding on the polyester melt to obtain the polyester multi-hole yarn, wherein the number of holes of the multi-hole spinneret plate is 144.
The dyeing process of the polyester porous yarn comprises the following steps:
treating the polyester porous yarn with a nonionic surfactant at 60 ℃ for 30 minutes, dyeing in a high-temperature high-pressure press, dyeing at 60 ℃, heating to 90 ℃, 100 ℃, 110 ℃ and 120 ℃ for 1 hour at constant temperature, wherein the disperse dye for dyeing is disperse red 3B, disperse blue SE-2R or disperse turquoise blue S-GL, the dye consumption is 2.0% (o.w.f), the concentration of NNO (dispersant) in the dye solution is 1.2g/L, the pH value of the dye solution is 5, and the bath ratio is 1: 50.
The spinning process parameters of the polyester porous yarn are shown in the table 1.
The fineness of the prepared polyester porous yarn is 135dtex, the breaking strength is 4.0cN/dtex, the elongation at break is 33.0%, the linear density deviation rate is 0.48%, the breaking strength CV value is 5.0%, the elongation at break CV value is 7.3%, the yarn evenness CV value is 1.96%, the boiling water shrinkage is 7.5%, the oil content is 0.90%, and the dyeing uniformity is 5.0 grade.
Example 4
A preparation method of polyester porous yarn comprises the following specific steps:
(1) preparation of oiling oil agent: mixing 2-hydroxymethyl-12-crown-4 with potassium dodecyl phosphate, trimethylolpropane laurate and sodium hexadecylsulfonate at normal temperature, and adding into 12# mineral oil and evenly stirring for 2.5h at 40 ℃ to obtain an oil agent; the addition amount of each component is as follows according to the parts by weight: 5 parts of No. 12 mineral oil; 2-hydroxymethyl-12-crown-495 parts; 9 parts of dodecyl phosphate potassium salt; and 2 parts of sodium hexadecyl sulfonate. The prepared oil agent has crown ether content of 85.58wt%, excellent high temperature resistance, thermal weight loss of 9 wt% after heating treatment at 200 deg.C for 2h, low viscosity, and kinematic viscosity of 29.5mm at (50 + -0.01) ° C2(s) a kinematic viscosity of 0.93mm after preparation with water as an emulsion having a concentration of 10% by weight2(s) the oil film strength of the oil agent is high and is 121N, the surface tension of the oil agent is 24.3cN/cm, and the specific resistance is 1.0 × 108Omega cm, coefficient of static friction (mu) between fibres (F/F) after oilings) 0.260, coefficient of dynamic friction (. mu.)d) 0.263, coefficient of static friction (. mu.m) between fiber and metal (F/M) after oilings) 0.202, coefficient of dynamic friction (. mu.)d) 0.330, and the prepared oil agent is prepared into 16 wt% emulsion by water when in use;
(2) and (3) carrying out metering, multi-hole spinneret plate extrusion, cooling, oiling, stretching, heat setting and winding on the polyester melt to obtain the polyester multi-hole yarn, wherein the number of holes of the multi-hole spinneret plate is 252.
The dyeing process of the polyester porous yarn comprises the following steps:
treating the polyester porous yarn with a nonionic surfactant at 60 ℃ for 30 minutes, dyeing in a high-temperature high-pressure press, dyeing at 60 ℃, heating to 90 ℃, 100 ℃, 110 ℃ and 120 ℃ for 1 hour at constant temperature, wherein the disperse dye for dyeing is disperse red 3B, disperse blue SE-2R or disperse turquoise blue S-GL, the dye consumption is 2.0% (o.w.f), the concentration of NNO (dispersant) in the dye solution is 1.2g/L, the pH value of the dye solution is 5, and the bath ratio is 1: 50.
The spinning process parameters of the polyester porous yarn are shown in the table 1.
The fineness of the prepared polyester porous yarn is 150dtex, the breaking strength is 4.3cN/dtex, the elongation at break is 36.0%, the linear density deviation rate is 0.45%, the breaking strength CV value is 4.8%, the elongation at break CV value is 7.9%, the yarn evenness CV value is 1.90%, the boiling water shrinkage is 8.0%, the oil content is 0.70%, and the dyeing uniformity is 5.5 grade.
Example 5
A preparation method of polyester porous yarn comprises the following specific steps:
(1) preparation of oiling oil agent: uniformly mixing 15-crown ether-5, isotridecanol polyoxyethylene ether phosphate potassium salt, trimethylolpropane laurate and sodium dodecyl sulfate at normal temperature, adding into 13# mineral oil, and uniformly stirring at 52 ℃ for 2 hours to obtain an oil agent; the addition amount of each component is as follows according to the parts by weight: 10 parts of No. 13 mineral oil; 5 parts of trimethylolpropane laurate; 15-crown ether-570 parts; 8 parts of isomeric tridecanol polyoxyethylene ether phosphate potassium salt; 6 parts of sodium dodecyl sulfate. The prepared oil agent has crown ether content of 70.70 wt%, excellent high temperature resistance, thermal weight loss of 13.5 wt% after heating treatment at 200 ℃ for 2h, low viscosity of the oil agent, and kinematic viscosity of 28.6mm at (50 +/-0.01) ° C2(s) a kinematic viscosity of 0.95mm after preparation with water as an emulsion having a concentration of 10% by weight2The oil has high oil film strength of 126N, surface tension of 24.9cN/cm, and specific resistance of 1.2 × 108Omega cm, coefficient of static friction (mu) between fibres (F/F) after oilings) 0.251, coefficient of dynamic friction (. mu.)d) 0.262, coefficient of static friction (. mu.m) between fiber and metal (F/M) after oilings) 0.202, coefficient of dynamic friction (. mu.)d) 0.332, and the prepared oil agent is prepared into emulsion with the concentration of 18 weight percent by using water when in use;
(2) and (3) carrying out metering, multi-hole spinneret plate extrusion, cooling, oiling, stretching, heat setting and winding on the polyester melt to obtain the polyester multi-hole yarn, wherein the number of holes of the multi-hole spinneret plate is 208.
The dyeing process of the polyester porous yarn comprises the following steps:
treating the polyester porous yarn with a nonionic surfactant at 60 ℃ for 30 minutes, dyeing in a high-temperature high-pressure press, dyeing at 60 ℃, heating to 90 ℃, 100 ℃, 110 ℃ and 120 ℃ for 1 hour at constant temperature, wherein the disperse dye for dyeing is disperse red 3B, disperse blue SE-2R or disperse turquoise blue S-GL, the dye consumption is 2.0% (o.w.f), the concentration of NNO (dispersant) in the dye solution is 1.2g/L, the pH value of the dye solution is 5, and the bath ratio is 1: 50.
The spinning process parameters of the polyester porous yarn are shown in the table 1.
The fineness of the prepared polyester porous yarn is 145dtex, the breaking strength is 3.8cN/dtex, the elongation at break is 31.0%, the linear density deviation rate is 0.41%, the breaking strength CV value is 4.1%, the elongation at break CV value is 7.1%, the yarn evenness CV value is 1.96%, the boiling water shrinkage is 7.4%, the oil content is 1.00%, and the dyeing uniformity is 4.5 grade.
Example 6
A preparation method of polyester porous yarn comprises the following specific steps:
(1) preparation of oiling oil agent: uniformly mixing 2-hydroxymethyl-15-crown-5 with potassium dodecatetradecanol phosphate, trimethylolpropane laurate and sodium pentadecylsulfonate at normal temperature, adding into 14# mineral oil, and uniformly stirring at 55 ℃ for 1h to obtain an oil agent; the addition amount of each component is as follows according to the parts by weight: 3 parts of No. 14 mineral oil; 10 parts of trimethylolpropane laurate; 2-hydroxymethyl-15-crown-575 parts; 14 parts of potassium dodecatetradecanol phosphate; and 7 parts of sodium pentadecylsulfonate. The prepared oil agent has the crown ether content of 68.80 wt%, excellent high temperature resistance, thermal weight loss of 12 wt% after heat treatment at 200 ℃ for 2h, low viscosity, and kinematic viscosity of 27.5mm at (50 +/-0.01) ° C2(s) a kinematic viscosity of 0.95mm after preparation with water as an emulsion having a concentration of 10% by weight2The oil has a high oil film strength of 126N, a surface tension of 25.4cN/cm and a specific resistance of 1.6 × 108Omega cm, coefficient of static friction (mu) between fibres (F/F) after oilings) 0.255, coefficient of dynamic friction (. mu.)d) 0.267, coefficient of static friction (. mu.) between fiber and metal (F/M) after oilings) 0.203, coefficient of dynamic friction (. mu.)d) 0.330, and the prepared oil agent is prepared into an emulsion with the concentration of 17 wt% by using water when in use;
(2) and (3) metering the polyester melt, extruding by using a porous spinneret plate, cooling, oiling, stretching, heat setting and winding to obtain the polyester porous yarn, wherein the number of the holes of the porous spinneret plate is 288.
The dyeing process of the polyester porous yarn comprises the following steps:
treating the polyester porous yarn with a nonionic surfactant at 60 ℃ for 30 minutes, dyeing in a high-temperature high-pressure press, dyeing at 60 ℃, heating to 90 ℃, 100 ℃, 110 ℃ and 120 ℃ for 1 hour at constant temperature, wherein the disperse dye for dyeing is disperse red 3B, disperse blue SE-2R or disperse turquoise blue S-GL, the dye consumption is 2.0% (o.w.f), the concentration of NNO (dispersant) in the dye solution is 1.2g/L, the pH value of the dye solution is 5, and the bath ratio is 1: 50.
The spinning process parameters of the polyester porous yarn are shown in the table 1.
The fineness of the prepared polyester porous yarn is 75dtex, the breaking strength is 3.9cN/dtex, the elongation at break is 35.0%, the linear density deviation rate is 0.49%, the breaking strength CV value is 4.4%, the elongation at break CV value is 7.5%, the yarn evenness CV value is 1.93%, the boiling water shrinkage is 7.4%, the oil content is 0.95%, and the dyeing uniformity is 4.5 grade.
Example 7
A preparation method of polyester porous yarn comprises the following specific steps:
(1) preparation of oiling oil agent: uniformly mixing 15-crown ether-5 with dodecyl phosphate potassium salt, trimethylolpropane laurate and sodium hexadecylsulfonate at normal temperature, adding the mixture into 15# mineral oil, and uniformly stirring the mixture for 2 hours at 41 ℃ to obtain an oil agent; the addition amount of each component is as follows according to the parts by weight: 8 parts of No. 15 mineral oil; 20 parts of trimethylolpropane laurate; 15-crown ether-5100 parts; 15 parts of dodecyl phosphate potassium salt; and 2 parts of sodium hexadecyl sulfonate. The prepared oil agent has the crown ether content of 68.97 wt%, excellent high temperature resistance, thermal weight loss of 8.5 wt% after 2h of heat treatment at 200 ℃, low viscosity of the oil agent, and kinematic viscosity of 28.4mm at (50 +/-0.01) ° C2(s) a kinematic viscosity of 0.94mm after preparation with water as an emulsion having a concentration of 10% by weight2(s) 122N, the oil film strength is high, the surface tension of the oil is 26.8cN/cm, and the specific resistance is 1.8 × 108Omega cm, coefficient of static friction (mu) between fibres (F/F) after oilings) 0.263, coefficient of dynamic friction (. mu.)d) 0.268, coefficient of static friction (. mu.M) between fiber and metal (F/M) after oilings) 0.210, coefficient of dynamic friction (. mu.)d) Is 0.320, preparing the prepared oil agent into an emulsion with the concentration of 20wt% by using water when in use;
(2) and (3) carrying out metering, multi-hole spinneret plate extrusion, cooling, oiling, stretching, heat setting and winding on the polyester melt to obtain the polyester multi-hole yarn, wherein the number of holes of the multi-hole spinneret plate is 236.
The dyeing process of the polyester porous yarn comprises the following steps:
treating the polyester porous yarn with a nonionic surfactant at 60 ℃ for 30 minutes, dyeing in a high-temperature high-pressure press, dyeing at 60 ℃, heating to 90 ℃, 100 ℃, 110 ℃ and 120 ℃ for 1 hour at constant temperature, wherein the disperse dye for dyeing is disperse red 3B, disperse blue SE-2R or disperse turquoise blue S-GL, the dye consumption is 2.0% (o.w.f), the concentration of NNO (dispersant) in the dye solution is 1.2g/L, the pH value of the dye solution is 5, and the bath ratio is 1: 50.
The spinning process parameters of the polyester porous yarn are shown in the table 1.
The fineness of the prepared polyester porous yarn is 95dtex, the breaking strength is 4.4cN/dtex, the elongation at break is 35.5%, the linear density deviation rate is 0.5%, the breaking strength CV value is 4.6%, the elongation at break CV value is 8.0%, the yarn evenness CV value is 1.92%, the boiling water shrinkage is 7.3%, the oil content is 0.78%, and the dyeing uniformity is 5.0 level.
Example 8
A preparation method of polyester porous yarn comprises the following specific steps:
(1) preparation of oiling oil agent: uniformly mixing 2-hydroxymethyl-12-crown-4 with potassium dodecatetradecanol phosphate, trimethylolpropane laurate and sodium pentadecylsulfonate at normal temperature, adding into 16# mineral oil, and uniformly stirring at 45 ℃ for 3h to obtain an oil solution; the addition amount of each component is as follows according to the parts by weight: 9 parts of No. 16 mineral oil; 2-hydroxymethyl-12-crown-480 parts; 12 parts of potassium dodecatetradecanol phosphate; 5 parts of sodium pentadecylsulfonate. The prepared oil agent has crown ether content of 83.33 wt%, excellent high temperature resistance, thermal weight loss of 14 wt% after heating treatment at 200 deg.C for 2h, low viscosity of the oil agent, and kinematic viscosity of 30.0mm at (50 + -0.01) ° C2(s) a kinematic viscosity of 0.93mm after preparation with water as an emulsion having a concentration of 10% by weight2(s) preparation of oilThe oil film strength is 127N, the surface tension of the oil agent is 23.5cN/cm, and the specific resistance is 1.5 × 108Omega cm, coefficient of static friction (mu) between fibres (F/F) after oilings) 0.262, coefficient of dynamic friction (. mu.)d) 0.273, coefficient of static friction (. mu.M) between fiber and metal (F/M) after oilings) 0.208, coefficient of dynamic friction (. mu.)d) 0.328, and the prepared oil agent is prepared into emulsion with the concentration of 18 wt% by using water when in use;
(2) and (3) carrying out metering, multi-hole spinneret plate extrusion, cooling, oiling, stretching, heat setting and winding on the polyester melt to obtain the polyester multi-hole yarn, wherein the number of holes of the multi-hole spinneret plate is 196.
The dyeing process of the polyester porous yarn comprises the following steps:
treating the polyester porous yarn with a nonionic surfactant at 60 ℃ for 30 minutes, dyeing in a high-temperature high-pressure press, dyeing at 60 ℃, heating to 90 ℃, 100 ℃, 110 ℃ and 120 ℃ for 1 hour at constant temperature, wherein the disperse dye for dyeing is disperse red 3B, disperse blue SE-2R or disperse turquoise blue S-GL, the dye consumption is 2.0% (o.w.f), the concentration of NNO (dispersant) in the dye solution is 1.2g/L, the pH value of the dye solution is 5, and the bath ratio is 1: 50.
The spinning process parameters of the polyester porous yarn are shown in the table 1.
The fineness of the prepared polyester porous yarn is 90dtex, the breaking strength is 4.2cN/dtex, the elongation at break is 33.0%, the linear density deviation rate is 0.44%, the breaking strength CV value is 4.9%, the elongation at break CV value is 7.2%, the yarn evenness CV value is 2.00%, the boiling water shrinkage is 8.0%, the oil content is 0.90%, and the dyeing uniformity is 5.5 grade.
Example 9
A preparation method of polyester porous yarn comprises the following specific steps:
(1) preparation of oiling oil agent: uniformly mixing 2-hydroxymethyl-15-crown-5 with dodecyl phosphate potassium salt, trimethylolpropane laurate and sodium dodecyl sulfate at normal temperature, and uniformly stirring at 55 ℃ for 3 hours to obtain an oil agent; the addition amount of each component is as follows according to the parts by weight: 15 parts of trimethylolpropane laurate; 2-hydroxymethyl-15-crown-590 parts; dodecyl phosphate potassium salt 8 parts(ii) a 7 parts of sodium dodecyl sulfate. The prepared oil agent has the crown ether content of 81.81 wt%, excellent high temperature resistance, thermal weight loss of 10wt% after heating treatment at 200 ℃ for 2h, low viscosity of the oil agent, and kinematic viscosity of 29.7mm at (50 +/-0.01) ° C2(s) a kinematic viscosity of 0.94mm after preparation with water as an emulsion having a concentration of 10% by weight2The oil has a high oil film strength of 126N, a surface tension of 24.8cN/cm and a specific resistance of 1.8 × 108Omega cm, coefficient of static friction (mu) between fibres (F/F) after oilings) 0.250, coefficient of dynamic friction (. mu.)d) 0.264, coefficient of static friction (. mu.m) between fiber and metal (F/M) after oilings) 0.210, coefficient of dynamic friction (. mu.)d) 0.321, preparing the prepared oil agent into an emulsion with the concentration of 17 wt% by using water when in use;
(2) and (3) preparing the polyester porous yarn by metering the polyester melt, extruding the polyester melt through a porous spinneret plate, cooling, oiling, stretching, heat setting and winding, wherein the number of holes of the porous spinneret plate is 237.
The dyeing process of the polyester porous yarn comprises the following steps:
treating the polyester porous yarn with a nonionic surfactant at 60 ℃ for 30 minutes, dyeing in a high-temperature high-pressure press, dyeing at 60 ℃, heating to 90 ℃, 100 ℃, 110 ℃ and 120 ℃ for 1 hour at constant temperature, wherein the disperse dye for dyeing is disperse red 3B, disperse blue SE-2R or disperse turquoise blue S-GL, the dye consumption is 2.0% (o.w.f), the concentration of NNO (dispersant) in the dye solution is 1.2g/L, the pH value of the dye solution is 5, and the bath ratio is 1: 50.
The spinning process parameters of the polyester porous yarn are shown in the table 1.
The fineness of the prepared polyester porous yarn is 115dtex, the breaking strength is 4.7cN/dtex, the elongation at break is 30.0%, the linear density deviation rate is 0.47%, the breaking strength CV value is 4.7%, the elongation at break CV value is 7.5%, the yarn evenness CV value is 1.96%, the boiling water shrinkage is 7.5%, the oil content is 0.90%, and the dyeing uniformity is 4.5 grade.
Example 10
A preparation method of polyester porous yarn comprises the following specific steps:
(1) oilingPreparation with an oil agent: uniformly mixing 2-hydroxymethyl-15-crown-5 with dodecyl phosphate potassium salt, trimethylolpropane laurate and sodium dodecyl sulfate at normal temperature, and uniformly stirring at 55 ℃ for 3 hours to obtain an oil agent; the addition amount of each component is as follows according to the parts by weight: 15 parts of trimethylolpropane laurate; 2-hydroxymethyl-15-crown-590 parts; 8 parts of dodecyl phosphate potassium salt; 7 parts of sodium dodecyl sulfate. The prepared oil agent has the crown ether content of 81.81 wt%, excellent high temperature resistance, thermal weight loss of 10wt% after heating treatment at 200 ℃ for 2h, low viscosity of the oil agent, and kinematic viscosity of 29.7mm at (50 +/-0.01) ° C2(s) a kinematic viscosity of 0.94mm after preparation with water as an emulsion having a concentration of 10% by weight2The oil has high oil film strength of 126N, surface tension of 24.8cN/cm, and specific resistance of 1.8 × 108Omega cm, coefficient of static friction (mu) between fibres (F/F) after oilings) 0.250, coefficient of dynamic friction (. mu.)d) 0.264, coefficient of static friction (. mu.m) between fiber and metal (F/M) after oilings) 0.210, coefficient of dynamic friction (. mu.)d) 0.321, preparing the prepared oil agent into an emulsion with the concentration of 19 wt% by using water when in use;
(2) and (3) carrying out metering, multi-hole spinneret plate extrusion, cooling, oiling, stretching, heat setting and winding on the polyester melt to obtain the polyester multi-hole yarn, wherein the number of holes of the multi-hole spinneret plate is 260.
The dyeing process of the polyester porous yarn comprises the following steps:
treating the polyester porous yarn with a nonionic surfactant at 60 ℃ for 30 minutes, dyeing in a high-temperature high-pressure press, dyeing at 60 ℃, heating to 90 ℃, 100 ℃, 110 ℃ and 120 ℃ for 1 hour at constant temperature, wherein the disperse dye for dyeing is disperse red 3B, disperse blue SE-2R or disperse turquoise blue S-GL, the dye consumption is 2.0% (o.w.f), the concentration of NNO (dispersant) in the dye solution is 1.2g/L, the pH value of the dye solution is 5, and the bath ratio is 1: 50.
The spinning process parameters of the polyester porous yarn are shown in the table 1.
The fineness of the prepared polyester porous yarn is 140dtex, the breaking strength is 3.8cN/dtex, the elongation at break is 36.0%, the linear density deviation rate is 0.5%, the breaking strength CV value is 4.2%, the elongation at break CV value is 7.6%, the yarn evenness CV value is 1.95%, the boiling water shrinkage is 7.0%, the oil content is 1.10%, and the dyeing uniformity is 4.5 grade.
Example 11
A preparation method of polyester porous yarn comprises the following specific steps:
(1) preparation of oiling oil agent: uniformly mixing 2-hydroxymethyl-12-crown-4 with dodecyl phosphate potassium salt, trimethylolpropane laurate and sodium dodecyl sulfate at normal temperature, adding into No. 9 mineral oil, and uniformly stirring at 40 ℃ for 1h to obtain an oil agent; the addition amount of each component is as follows according to the parts by weight: 2 parts of No. 9 mineral oil; 10 parts of trimethylolpropane laurate; 2-hydroxymethyl-12-crown-490 parts; 8 parts of dodecyl phosphate potassium salt; and 3 parts of sodium dodecyl sulfate. The prepared oil agent has crown ether content of 79.6 wt%, excellent high temperature resistance, thermal weight loss of 14.5 wt% after heating treatment at 200 ℃ for 2h, low viscosity of the oil agent, and kinematic viscosity of 29.6mm at (50 +/-0.01) ° C2(s) a kinematic viscosity of 0.93mm after preparation with water as an emulsion having a concentration of 10% by weight2(s) the oil has high oil film strength of 125N, surface tension of 24.8cN/cm, and specific resistance of 1.3 × 108Omega cm, coefficient of static friction (mu) between fibres (F/F) after oilings) 0.255, coefficient of dynamic friction (. mu.)d) 0.266, after oiling, the coefficient of static friction (μ) between fiber and metal (F/M)s) 0.203, coefficient of dynamic friction (. mu.)d) 0.320, and the prepared oil agent is prepared into an emulsion with the concentration of 15wt% by using water when in use;
(2) and (3) carrying out metering, multi-hole spinneret plate extrusion, cooling, oiling, stretching, heat setting and winding on the polyester melt to obtain the polyester multi-hole yarn, wherein the number of holes of the multi-hole spinneret plate is 144.
The dyeing process of the polyester porous yarn comprises the following steps:
treating the polyester porous yarn with a nonionic surfactant at 60 ℃ for 30 minutes, dyeing in a high-temperature high-pressure press, dyeing at 60 ℃, heating to 90 ℃, 100 ℃, 110 ℃ and 120 ℃ for 1 hour at constant temperature, wherein the disperse dye for dyeing is disperse red 3B, disperse blue SE-2R or disperse turquoise blue S-GL, the dye consumption is 2.0% (o.w.f), the concentration of NNO (dispersant) in the dye solution is 1.2g/L, the pH value of the dye solution is 5, and the bath ratio is 1: 50.
The spinning process parameters of the polyester porous yarn are shown in the table 1.
The fineness of the prepared polyester porous yarn is 125dtex, the breaking strength is 4.1cN/dtex, the elongation at break is 33.0%, the linear density deviation rate is 0.43%, the breaking strength CV value is 4.8%, the elongation at break CV value is 8.0%, the yarn evenness CV value is 1.99%, the boiling water shrinkage is 7.5%, the oil content is 0.70%, and the dyeing uniformity is 4.5 grade.
TABLE 1
Figure BDA0001508223530000151
Figure BDA0001508223530000161

Claims (4)

1. The preparation method of the polyester porous yarn is characterized by comprising the following steps: the polyester melt is subjected to metering, multi-hole spinneret plate extrusion, cooling, oiling, stretching, heat setting and winding to prepare the polyester multi-hole yarn;
the number of holes of the multi-hole spinneret plate is 144-288;
the oiling oil agent contains crown ether, and the content of the crown ether is 67.30-85.58 wt%;
the crown ether is 2-hydroxymethyl-12-crown-4, 15-crown ether-5 or 2-hydroxymethyl-15-crown-5;
when the oil agent is used, preparing an emulsion with the concentration of 10-20 wt% by using water;
the thermal weight loss of the oil agent after heating treatment for 2 hours at 200 ℃ is less than 15 wt%;
the kinematic viscosity of the oil agent is 27.5-30.1 mm at the temperature of (50 +/-0.01) ° C2The kinematic viscosity of the oil agent prepared from water into 10wt% emulsion is 0.93-0.95 mm2/s；
The oil film strength of the oil agent is 121-127N;
the surface tension of the oil agent is 23.226.8cN/cm, specific resistance of 1.0 × 108~1.8×108Ω·cm；
After oiling, the static friction coefficient between the fibers is 0.250-0.263, and the dynamic friction coefficient is 0.262-0.273;
after oiling, the static friction coefficient between the fiber and the metal is 0.202-0.210, and the dynamic friction coefficient is 0.320-0.332;
the fineness of the polyester porous yarn is 75-150 dtex, the breaking strength is more than or equal to 3.8cN/dtex, the elongation at break is 33.0 +/-3.0%, the linear density deviation rate is less than or equal to 0.5%, the breaking strength CV value is less than or equal to 5.0%, the elongation at break CV value is less than or equal to 8.0%, the yarn evenness unevenness CV value is less than or equal to 2.00%, the boiling water shrinkage rate is 7.5 +/-0.5%, the oil content is 0.90 +/-0.20%, and the dyeing uniformity is more than 4.5 level.
2. The preparation method of the porous polyester yarns as claimed in claim 1, wherein the oil agent comprises the following components in parts by weight:
0-10 parts of mineral oil;
0-20 parts of trimethylolpropane laurate;
70-100 parts of crown ether;
8-15 parts of phosphate potassium salt;
2-7 parts of sodium alkylsulfonate;
the preparation method of the oil agent comprises the following steps: uniformly mixing all the components and then uniformly stirring to obtain an oil agent;
the mixing is carried out at normal temperature, the stirring temperature is 40-55 ℃, and the stirring time is 1-3 h.
3. The preparation method of the porous polyester yarn as claimed in claim 1 or 2, wherein the spinning process parameters of the porous polyester yarn are as follows:
spinning temperature: 280-290 ℃;
cooling temperature: 20-25 ℃;
network pressure: 0.20 to 0.30 MPa;
a roll speed: 2200 to 2600m/min
First roll temperature: 75-85 ℃;
two roll speed: 3600-3900 m/min;
temperature of the two rolls: 135-165 ℃;
speed of winding: 3550-3840 m/min;
the initial pressure of the spinning assembly is 120bar, and the pressure rise delta P is less than or equal to 0.6 bar/day.
4. The preparation method of the porous polyester yarn as claimed in claim 1, wherein the dyeing process of the porous polyester yarn is as follows:
treating the polyester porous yarn with a nonionic surfactant at 60 ℃ for 30 minutes, dyeing in a high-temperature high-pressure machine, dyeing at 60 ℃, and dyeing at constant temperature of 90 ℃, 100 ℃, 110 ℃ and 120 ℃ for 1 hour;
wherein the disperse dye for dyeing is disperse red 3B, disperse blue SE-2R or disperse turquoise blue S-GL, the dye dosage is 2.0% o.w.f, the concentration of a dispersant NNO in the dye liquor is 1.2g/L, the pH value of the dye liquor is 5, and the bath ratio is 1: 50.
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CN110404514B (en) * 2019-06-28 2021-12-21 江苏大学 Method for preparing high-density crown ether site porous adsorbent by surface photo-initiation
CN110227424B (en) * 2019-06-28 2021-12-21 江苏大学 Preparation method and application of covalent modification high-density crown ether functionalized porous adsorbent
CN113122956B (en) * 2021-03-24 2022-02-08 江苏宏泰纤维科技有限公司 Preparation facilities of super bright dacron POY colored yarn
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