CN116590924A - Sizing agent for vortex yarns and sizing process - Google Patents

Sizing agent for vortex yarns and sizing process Download PDF

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CN116590924A
CN116590924A CN202310387995.0A CN202310387995A CN116590924A CN 116590924 A CN116590924 A CN 116590924A CN 202310387995 A CN202310387995 A CN 202310387995A CN 116590924 A CN116590924 A CN 116590924A
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sizing
parts
slurry
yarn
vortex
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沈建中
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Zhejiang Chunyuan Ke Textile Co ltd
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Zhejiang Chunyuan Ke Textile Co ltd
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    • 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
    • D06M15/01—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with natural macromolecular compounds or derivatives thereof
    • D06M15/15—Proteins or derivatives thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F289/00—Macromolecular compounds obtained by polymerising monomers on to macromolecular compounds not provided for in groups C08F251/00 - C08F287/00
    • 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
    • D06M15/01—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with natural macromolecular compounds or derivatives thereof
    • D06M15/17—Natural resins, resinous alcohols, resinous acids, or derivatives 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
    • D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/227—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of hydrocarbons, or reaction products thereof, e.g. afterhalogenated or sulfochlorinated
    • D06M15/233—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of hydrocarbons, or reaction products thereof, e.g. afterhalogenated or sulfochlorinated aromatic, e.g. styrene
    • 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
    • D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/263—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated carboxylic acids; Salts or esters 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
    • D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/285—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated carboxylic acid amides or imides
    • 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
    • D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
    • D06M2200/40—Reduced friction resistance, lubricant properties; Sizing compositions

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Abstract

The application relates to sizing agent and sizing process for vortex yarns, which relate to the technical field of textile sizing, and comprise the following raw materials in parts by weight: 510-880 parts of water; 40-60 parts of gelatin; 70-90 parts of acrylic acid; 70-90 parts of acrylamide; 100-120 parts of butyl acrylate; 60-80 parts of styrene; 0.3-1.5 parts of initiator; 6-22 parts of emulsifying agent; 4-8 parts of softening agent; 0.5-3 parts of defoaming agent; 2.5-9 parts of tackifying resin. The sizing agent prepared by the application can improve the environment-friendly property and sizing performance of vortex yarn sizing.

Description

Sizing agent for vortex yarns and sizing process
Technical Field
The application relates to the technical field of textile sizing, in particular to sizing for vortex yarns and a sizing process.
Background
The vortex spinning is a novel spinning method which uses a fixed vortex spinning tube to replace a spinning cup rotating at high speed for spinning, and the yarn spun by the method becomes vortex yarn. The vortex yarn has a double structure, the core fibers of the yarn are arranged in parallel and have no viscosity, the terminal fibers are wrapped and wound with the core fibers by virtue of the action of the rotating air flow, so that the limited parallel straightening degree in the sliver is poor, most of the vortex yarn is in a bent hook or zigzag shape, meanwhile, the twist angles of the fibers at the inner layer and the outer layer of the vortex yarn are inconsistent, and the vortex yarn has a core-spun structure, so that the strength of the vortex yarn is low.
In order to increase the weaveability of the vortex yarn, before the vortex yarn is woven, a sizing process is carried out on the vortex yarn, sizing agent is coated on the surface of the yarn and is soaked into the yarn, and after drying, a soft, tough and elastic uniform sizing film is formed on the surface of the yarn, so that the yarn body is smooth and hairiness is attached; in the yarn, the cohesion capability among the fibers is enhanced through the bonding effect, and the physical and mechanical properties of the yarn are improved, so that the weavability of the warp yarn is improved.
The slurry mainly comprises an adhesive and a functional auxiliary agent, the adhesive is also called main slurry, the main slurry has a decisive influence on the overall property of the slurry, the auxiliary agent is an auxiliary material with smaller dosage, the main slurry commonly used at present comprises three main types of starch, polyacrylic acid and PVA, the starch slurry has poor fluidity, and a slurry film is brittle, but the source is wide and the price is low; polyacrylic acid is mainly polymerized by a plurality of propylene monomers, has better adhesive force on synthetic fibers, but the serosa has strong moisture absorption and re-adhesion, and influences the quality of sizing; PVA sizing has high strength and wear-resistant sizing film, but sizing has more secondary hairiness, is difficult to degrade and causes serious pollution to the environment.
The strength of the vortex yarn is lower, the evenness is uneven, the sizing effect of the single use of starch or polyacrylic acid main sizing agent is poor, and the PVA can achieve the sizing strength, but the PVA has a large amount of hydroxyl groups, and the desizing waste liquid is difficult to degrade, so that the environmental protection property of the vortex yarn sizing is reduced.
Disclosure of Invention
In order to improve the environment protection property and sizing effect of vortex yarn sizing, the application provides sizing agent and sizing process for vortex yarn.
In a first aspect, the present application provides a sizing agent for vortex yarns, which adopts the following technical scheme: the material comprises the following raw materials in parts by weight: 510-880 parts of water; 40-60 parts of gelatin; 70-90 parts of acrylic acid; 70-90 parts of acrylamide; 100-120 parts of butyl acrylate; 60-80 parts of styrene; 0.3-1.5 parts of initiator; 6-22 parts of emulsifying agent; 4-8 parts of softening agent; 0.5-3 parts of defoaming agent; 2.5-9 parts of tackifying resin.
By adopting the technical scheme, the gelatin is a protein hydrocolloid containing 18 amino acids, the cost of the slurry prepared from the gelatin serving as a raw material is low, the slurry is easy to desize, but the slurry film is hard, the permeability is poor, and the moisture absorption and re-adhesiveness are strong; acrylic acid and acrylamide have good water solubility, so that the sizing agent has good sizing performance on hydrophilic fibers, butyl acrylate is a hydrophobic soft monomer, the sizing agent has good sizing performance on the hydrophobic fibers, and styrene is used as a hard monomer for adjusting sizing performance, moisture absorption and re-adhesion of the sizing agent and hardness and brittleness of a sizing film.
Therefore, gelatin is taken as a protein matrix, and is subjected to graft copolymerization with acrylamide and butyl acrylate under the action of an initiator and an emulsifier, wherein the acrylamide is taken as a water-soluble monomer, and the butyl acrylate is taken as a soft monomer, and the hardness and the brittleness of a gelatin serosity film are regulated through the water-soluble monomer and the soft monomer, so that the water solubility of the serosity film is improved, and meanwhile, the serosity film has certain strength and toughness, so that the moisture absorption and the re-viscosity of serosity are reduced; meanwhile, acrylic acid, acrylamide, butyl acrylate and styrene are subjected to emulsion polymerization under the action of an initiator and an emulsifier, so that the sizing agent is suitable for hydrophilic fibers and hydrophobic fibers, the softening agent improves the plasticity and toughness of the sizing agent, and the defoamer reduces the probability of bubble generation of the sizing agent, so that the sizing effect is improved, the tackifying resin is compatible with the butyl acrylate, the initial viscosity of the sizing agent is increased, the peeling strength of the sizing agent is improved, and the environmental protection performance and sizing effect of vortex yarn sizing are improved.
Optionally, the preparation process of the slurry comprises the following steps:
dissolving the emulsifier in water, adding butyl acrylate and part of styrene, and continuously stirring and emulsifying for 30-40min at 50-60 ℃ to obtain a pre-emulsified solution;
heating the pre-emulsified solution to 70-90 ℃, adding gelatin, acrylic acid, acrylamide, the rest of styrene and an initiator, and continuously stirring and polymerizing for 30-60min to obtain a polymer;
adding a softening agent, a defoaming agent and tackifying resin into the polymer, stirring for 40-60min at 90-95 ℃, cooling to 60-70 ℃, regulating the pH value to 6-8, filtering and discharging.
By adopting the technical scheme, gelatin, partial acrylamide and partial butyl acrylate are used as a first group of polymerization monomers, styrene and acrylic acid, the rest acrylamide and butyl acrylate are used as a second group of polymerization monomers, an emulsifying agent is firstly added into water, then butyl acrylate and partial styrene are added, the emulsifying agent enables the butyl acrylate and the styrene monomers to be dispersed in the water to form a pre-emulsified solution, and as butyl acrylate is a hydrophobic soft monomer shared by the two groups of monomers, free radicals in a reaction system are increased under the action of the emulsifying agent, the rest monomers and an initiator are added subsequently, emulsion polymerization reaction can be rapidly carried out between the monomers, so that the reaction rate of emulsion polymerization is improved, butyl acrylate is used as two groups of shared reaction monomers, the water solubility of the slurry is regulated, so that the moisture absorption and the re-adhesiveness of the slurry are reduced while the water solubility of the slurry is better, and finally, the softener, the defoamer and the tackifying resin are added to partially supplement and regulate the functionality of the slurry, so that the environment-friendly vortex sizing effect and the sizing effect are improved.
Optionally, in preparing the pre-emulsified solution, the weight part ratio of the butyl acrylate to the styrene is 2:1.
By adopting the technical scheme, the addition amount of styrene in the pre-emulsification is optimized, so that the progress of the polymerization reaction of the two groups of emulsions is controlled, and the performance of the reaction products of the two groups of emulsions is optimal.
Optionally, the emulsifier comprises at least one of sodium dodecyl benzene sulfonate and sodium dodecyl sulfate.
By adopting the technical scheme, the sodium dodecyl benzene sulfonate and the sodium dodecyl sulfate are both anionic emulsifiers, the cost is low, the emulsifying performance is good, and the biodegradability is high at the same time, so that the environmental protection performance and sizing effect of the slurry are improved.
Optionally, the initiator is at least one selected from ammonium persulfate and potassium persulfate.
By adopting the technical scheme, the ammonium persulfate and the potassium persulfate are inorganic peroxide compounds, are dissolved in water, are nontoxic, do not harm health, and do not negatively affect the environment; the half life period can be adjusted by adopting more than two kinds of initiator for compounding, and the effect is better, so that the environment friendliness of the slurry and the sizing effect are improved.
Optionally, the softener and the defoamer are nonionic.
By adopting the technical scheme, the suitability of the nonionic softener and the defoamer is good, the nonionic softener is stable to electrolyte, and the slurry formed by the nonionic softener and the defoamer has no yellowing defect, so that the sizing effect of the slurry is improved.
In a second aspect, the present application provides a process for sizing a vortex yarn, which adopts the following technical scheme: the method comprises the following steps:
adding a proper amount of clear water into a normal pressure slurry mixing barrel, adding the slurry according to any one of claims 1-6 into the slurry mixing barrel, keeping the viscosity of the slurry at 5-7Pa/s, continuously stirring and boiling the slurry for 5-10min, and then heating to 90-95 ℃ and sealing the slurry for 20-30min;
injecting the slurry obtained after the slurry is sealed into a sizing tank of a sizing machine, and keeping the sizing tank at a constant temperature;
putting the yarn into a sizing machine, starting the sizing machine to drive the yarn to carry out sizing and drying, stopping the machine when the yarn reaches a preset length, and sizing to end.
By adopting the technical scheme, the vortex yarn has lower strength, uneven evenness, yarn body in an inner loose and outer tight shape, sizing is easier compared with other spinning forms, and yarn cores of the vortex yarn have no twist, and the selected sizing agent has the characteristics of good permeability and strong adhesive force, so that the viscosity of the sizing agent needs to be reduced, the sizing agent can permeate into the yarn, the strength of the yarn is improved, and the sizing quality is ensured; the temperature of the sizing tank is an important parameter for ensuring the quality of sizing, and if the temperature of the sizing tank is unstable, the sizing tank has great influence on sizing rate and moisture regain, and can cause sizing foaming to cause fabric sizing spots. Therefore, the vat temperature needs to be kept constant.
Optionally, the slurry tank temperature is maintained at 90-95 ℃.
By adopting the technical scheme, the temperature of the slurry tank is optimized so that the slurry maintains good sizing performance.
Optionally, the sizing force of the sizing machine is 8-20kN, and the sizing speed is 70-80m/min.
By adopting the technical scheme, compared with other spinning forms, the vortex yarn is easier to size, and under the low-viscosity process, the sizing process with medium pressure and high vehicle speed is adopted, so that the saturation rate of the sizing agent is moderate, the strength of the yarn is improved, and the probability of yarn brittleness caused by excessive sizing agent permeation of the yarn core is reduced.
Optionally, the drying temperature of the sizing machine is 90-110 ℃.
By adopting the technical scheme, the drying temperature is properly increased, so that the slurry coated on the surface of the yarn is rapidly formed into a film, and the strength of the yarn is improved.
In summary, the present application includes at least one of the following beneficial technical effects:
1. taking gelatin as a protein matrix, performing graft copolymerization with acrylamide and butyl acrylate under the action of an initiator and an emulsifier, wherein the acrylamide is a water-soluble monomer, the butyl acrylate is a soft monomer, and adjusting the hardness and brittleness of a gelatin serosity membrane through the water-soluble monomer and the soft monomer to ensure that the serosity membrane has better water solubility and certain strength and toughness, so that the moisture absorption and re-adhesiveness of the serosity are reduced; meanwhile, acrylic acid, acrylamide, butyl acrylate and styrene are subjected to emulsion polymerization under the action of an initiator and an emulsifier, so that the sizing agent is suitable for hydrophilic fibers and hydrophobic fibers, the softening agent improves the plasticity and toughness of the sizing agent, and the defoamer reduces the probability of bubble generation of the sizing agent, so that the sizing effect is improved, the tackifying resin is compatible with the butyl acrylate, the initial viscosity of the sizing agent is increased, the peeling strength of the sizing agent is improved, and the environmental protection performance and sizing effect of vortex yarn sizing are improved.
2. Compared with other spinning forms, the vortex yarn is easier to size, and the sizing process with low viscosity, medium pressure and high vehicle speed is selected for proper sizing, so that PVA-free sizing of the vortex yarn can be realized, and meanwhile, the environmental protection performance and sizing effect of the vortex yarn are improved.
Detailed Description
The present application will be described in further detail with reference to examples.
The gelatin in the embodiment of the application is selected from Henan Yuan Kai Biotechnology Co., ltd; the tackifying resin is rosin produced by Jinan Shunyang chemical engineering Co., ltd; acrylic acid, acrylamide, butyl acrylate and styrene are all produced by the chemical technology of the front diffraction (Wuhan) limited company, and the purity is chemical purity; sodium dodecyl benzene sulfonate, sodium dodecyl sulfate, ammonium persulfate, potassium persulfate and ammonia water are produced by the company of the fine chemical industry of the Tongfangpeng, and the purity is analytically pure; the softening agent is monoglyceride produced by Hangzhou Kota biotechnology Co., ltd; the defoamer is glycerol produced by Hangzhou Kota Biotechnology Co.
PVA slurry was purchased from the Japanese colali brand PVA-235 slurry; the polyacrylic acid sizing agent is purchased from RG-SOD sizing agent produced by Weifang Jintai materials factory; the model of the VORTEX spinning machine is VORTEX-870; the sizing machine is a DSSI-01 full-automatic single yarn sizing machine.
Yarn A is made of hydrophilic fibers; the yarn B is made of hydrophobic fibers, the hydrophilic fibers in the embodiment of the application are viscose fibers made of cotton pulp, and the hydrophobic fibers are polyester fibers.
Examples
Example 1
The sizing agent for the vortex yarn comprises the following raw materials in parts by weight: 510kg of water, 40kg of gelatin, 70kg of acrylic acid, 70kg of acrylamide, 100kg of butyl acrylate, 60kg of styrene, 0.3kg of ammonium persulfate, 6kg of sodium dodecyl benzene sulfonate, 4kg of monoglyceride, 0.5kg of glycerol and 2.5kg of rosin;
the preparation process of the slurry comprises the following steps:
dissolving sodium dodecyl benzene sulfonate in water, adding 100kg of butyl acrylate and 20kg of styrene, and continuously stirring and emulsifying for 30min at 50 ℃ to obtain a pre-emulsified solution;
heating the pre-emulsified solution to 70 ℃, adding gelatin, acrylic acid, acrylamide, the rest 40kg of styrene and ammonium persulfate according to the formula amount, and continuously stirring and polymerizing for 30min to obtain a polymer;
adding monoglyceride, glycerol and rosin into polymer according to formula amount, stirring at 90deg.C for 40min, cooling to 60deg.C, adding ammonia water to adjust pH to 6-8, filtering, and discharging.
Example 2
The difference from example 1 is that each component and the corresponding weight parts are shown in table 1, and the preparation process of the slurry comprises the following steps:
dissolving sodium dodecyl sulfate in water according to the formula amount, adding 100kg of butyl acrylate and 60kg of styrene, and continuously stirring and emulsifying for 40min at 60 ℃ to obtain a pre-emulsified solution;
heating the pre-emulsified solution to 90 ℃, adding gelatin, acrylic acid, acrylamide, the rest 20kg of styrene and potassium persulfate according to the formula amount, and continuously stirring and polymerizing for 60min to obtain a polymer;
adding monoglyceride, glycerol and rosin into polymer according to formula amount, stirring at 95deg.C for 60min, cooling to 70deg.C, adding ammonia water to adjust pH to 6-8, filtering, and discharging.
Example 3
The difference from example 1 is that each component and the corresponding weight parts are shown in table 1, and the preparation process of the slurry comprises the following steps:
dissolving sodium dodecyl benzene sulfonate and sodium dodecyl sulfate in water according to the formula amount, adding 100kg of butyl acrylate and 50kg of styrene, and continuously stirring and emulsifying for 36min at 55 ℃ to obtain a pre-emulsified solution;
heating the pre-emulsified solution to 80 ℃, adding gelatin, acrylic acid, acrylamide, the rest 20kg of styrene, potassium persulfate and ammonium persulfate according to the formula amount, and continuously stirring and polymerizing for 45min to obtain a polymer;
adding monoglyceride, glycerol and rosin into the polymer according to the formula, stirring for 50min at 93 ℃, cooling to 65 ℃, adding ammonia water to adjust the pH to 6-8, filtering and discharging.
TABLE 1 Components and proportions in examples 1-3
Example 4
A process for sizing a vortex yarn comprising the steps of:
adding a proper amount of clear water into a normal pressure slurry mixing barrel, adding the slurry prepared in the embodiment 1 into the slurry mixing barrel, keeping the viscosity of the slurry at 5Pa/s, continuously stirring and boiling the slurry for 5min, and then heating to 90 ℃ and sealing the slurry for 20min;
injecting the slurry obtained after the slurry is sealed into a sizing tank of a sizing machine, and keeping the sizing tank at a constant temperature of 90 ℃;
and (3) putting the yarn A into a sizing machine, starting the sizing machine to drive the yarn A to carry out sizing and drying, wherein the sizing force is 8kN, the sizing speed is 70m/min, the drying temperature of the sizing machine is 90 ℃, stopping the machine when the yarn A reaches a preset length, and sizing ends.
Example 5
A process for sizing a vortex yarn comprising the steps of:
adding a proper amount of clear water into a normal pressure slurry mixing barrel, adding the slurry prepared in the embodiment 2 into the slurry mixing barrel, keeping the viscosity of the slurry at 7Pa/s, continuously stirring and boiling the slurry for 10min, and then heating to 95 ℃ and sealing the slurry for 30min;
injecting the slurry obtained after the slurry is sealed into a sizing tank of a sizing machine, and keeping the sizing tank at a constant temperature of 95 ℃;
and (3) putting the yarn A into a sizing machine, starting the sizing machine to drive the yarn A to carry out sizing and drying, wherein the sizing force is 20kN, the sizing speed is 80m/min, the drying temperature of the sizing machine is 110 ℃, stopping the machine when the yarn A reaches a preset length, and sizing ends.
Example 6
A process for sizing a vortex yarn comprising the steps of:
adding a proper amount of clear water into a normal pressure slurry mixing barrel, adding the slurry prepared in the embodiment 3 into the slurry mixing barrel, keeping the viscosity of the slurry at 6Pa/s, continuously stirring and boiling the slurry for 8min, and then heating to 93 ℃ and sealing the slurry for 25min;
injecting the slurry obtained after the slurry is sealed into a sizing tank of a sizing machine, wherein the sizing tank keeps constant temperature of 93 ℃;
and (3) putting the yarn A into a sizing machine, starting the sizing machine to drive the yarn A to carry out sizing and drying, wherein the sizing force is 18kN, the sizing speed is 75m/min, the drying temperature of the sizing machine is 105 ℃, stopping the machine when the yarn A reaches a preset length, and sizing is finished.
Example 7
The difference from example 4 is that yarn B was used as sizing.
Example 8
The difference from example 5 is that yarn B was used as sizing.
Example 9
The difference from example 6 is that yarn B was used as sizing.
Comparative example
Comparative example 1
The difference from example 6 is that PVA slurry was used as the slurry.
Comparative example 2
The difference from example 6 is that the slurry is a polyacrylic slurry.
Comparative example 3
The difference from example 9 is that PVA slurry was used as the slurry.
Comparative example 4
The difference from example 9 is that the slurry was a polyacrylic slurry.
Comparative example 5
The difference from example 6 is that the sizing and pressing force is 6kN.
Comparative example 6
The difference from example 6 is that the vehicle speed is 40m/min.
Comparative example 7
The difference from example 9 is that the sizing and pressing force is 6kN.
Comparative example 8
The difference from example 9 is that the vehicle speed was 40m/min.
Performance test
The slurries prepared in examples 1 to 3 and the purchased PVA slurry and acrylic slurry were subjected to performance testing of the slurry film according to the textile slurry testing technique published in 2007, the testing indexes including breaking strength, elongation at break and moisture absorption, wherein the moisture absorption was tested under the condition of a relative humidity of 70;
yarn A and yarn B were subjected to yarn breaking strength and elongation at break measurements in accordance with textile size detection technique and GB/T3916-2013 published in 2007, and the sized yarns of examples 4-9 and comparative examples 1-8 were subjected to sizing, moisture regain, elongation at break and abrasion resistance improvement;
the yarns of examples 4 to 9 and comparative examples 1 to 8 were subjected to desizing performance test according to the rapid test method of textile size test technology published in 2007, and were tested after standard color cards were made.
The spun yarns of examples 4-9 and comparative examples 1-8 were sized using an vortex spinning machine, respectively.
The sizing performance test results are shown in Table 2, the performance test results of yarn A and yarn B are shown in Table 3, the sizing performance test results are shown in Table 4, and the spinning effect is shown in Table 5.
TABLE 2 serosal Performance test results
TABLE 3 results of Performance test of yarns A and B
Table 4 sizing and desizing performance results
TABLE 5 spinning effect
As can be seen from Table 2, the strength of the sizing agent sizing film prepared by the application is lower than that of PVA sizing agent and polyacrylic sizing agent, the sizing film is complete, yarn splitting is facilitated, hairiness is less, although the elongation of the sizing agent sizing film is smaller than that of PVA sizing agent, the elongation of the sizing agent sizing film is enough according to the existing weaving requirement, and finally, the moisture absorption rate of the sizing agent is far smaller than that of PVA sizing agent and polyacrylic sizing agent, and the moisture absorption and re-adhesion phenomena generated by most sizing agents can be improved, so that the performance of the sizing agent is improved.
Since the color chart grades 1 to 5 indicate that the desizing is not clean, the grade 6 indicates that the desizing is sufficient, the grade 7 indicates that the desizing effect is good, and the grade 8 and above indicate that the desizing effect is very good, as can be seen from table 4, the desizing performance of the sizing agent of the application is better, and thus the environmental protection performance of the vortex yarn sizing can be improved.
Meanwhile, according to table 4, the sizing performance of the sizing agent and the sizing process of the application is superior to that of PVA sizing agent and polyacrylic sizing agent, and meanwhile, as the yarn A is hydrophilic viscose fiber, the yarn B is hydrophobic polyester fiber, and the sizing quality and sizing effect of sizing of the yarns A and B by adopting the sizing agent of the application are both achieved by using PVA and polyacrylic sizing agent, the sizing agent and the sizing process of the application are also applicable to hydrophilic fiber and hydrophobic fiber.
Compared with other spinning yarns, the vortex yarn is easier to size, has fewer hairiness and better wear resistance, so that the low sizing rate is needed to enable the sizing agent to permeate into the yarn, and the combination of the table 4 and the table 5 can be obtained, wherein the sizing agent component proportion and the sizing agent preparation mode in the embodiment 3 of the application are the optimal embodiments.
As can be seen from table 5, the yarn sized with the sizing and sizing process of the present application also had better weaving effect than PVA sizing and polyacrylic sizing, while the sizing process of example 6 was the optimal process according to the spinning effect results of examples 4-9 and comparative examples 5-8.
Therefore, the embodiment 3 of the application is an optimal embodiment of sizing mixture ratio and preparation, and the embodiment 6 of the application is an optimal embodiment of sizing process, and the environment protection performance and sizing performance of the vortex yarn sizing can be improved by adopting the sizing and sizing process of the application.
The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.

Claims (10)

1. A sizing for a vortex yarn, characterized by: the material comprises the following raw materials in parts by weight: 510-880 parts of water; 40-60 parts of gelatin; 70-90 parts of acrylic acid; 70-90 parts of acrylamide; 100-120 parts of butyl acrylate; 60-80 parts of styrene; 0.3-1.5 parts of initiator; 6-22 parts of emulsifying agent; 4-8 parts of softening agent; 0.5-3 parts of defoaming agent; 2.5-9 parts of tackifying resin.
2. A sizing for vortex yarns according to claim 1, characterized in that: the preparation process of the slurry comprises the following steps:
dissolving the emulsifier in water, adding butyl acrylate and part of styrene, and continuously stirring and emulsifying for 30-40min at 50-60 ℃ to obtain a pre-emulsified solution;
heating the pre-emulsified solution to 70-90 ℃, adding gelatin, acrylic acid, acrylamide, the rest of styrene and an initiator, and continuously stirring and polymerizing for 30-60min to obtain a polymer;
adding a softening agent, a defoaming agent and tackifying resin into the polymer, stirring for 40-60min at 90-95 ℃, cooling to 60-70 ℃, regulating the pH value to 6-8, filtering and discharging.
3. A sizing for vortex yarns according to claim 2, characterized in that: in the preparation of the pre-emulsified solution, the weight part ratio of the butyl acrylate to the styrene is 2:1.
4. A sizing for vortex yarns according to claim 2, characterized in that: the emulsifier comprises at least one of sodium dodecyl benzene sulfonate and sodium dodecyl sulfate.
5. A sizing for vortex yarns according to claim 4, wherein: the initiator is at least one selected from ammonium persulfate and potassium persulfate.
6. A sizing for vortex yarns according to claim 2, characterized in that: the softening agent and the defoaming agent are nonionic.
7. A process for sizing a vortex yarn, characterized by: the method comprises the following steps:
adding a proper amount of clear water into a normal pressure slurry mixing barrel, adding the slurry according to any one of claims 1-6 into the slurry mixing barrel, keeping the viscosity of the slurry at 5-7Pa/s, continuously stirring and boiling the slurry for 5-10min, and then heating to 90-95 ℃ and sealing the slurry for 20-30min;
injecting the slurry obtained after the slurry is sealed into a sizing tank of a sizing machine, and keeping the sizing tank at a constant temperature;
putting the yarn into a sizing machine, starting the sizing machine to drive the yarn to carry out sizing and drying, stopping the machine when the yarn reaches a preset length, and sizing to end.
8. The process for sizing an eddy current yarn according to claim 7, characterized in that: the temperature of the slurry tank is kept between 90 and 95 ℃.
9. The process for sizing an eddy current yarn according to claim 8, characterized in that: the sizing force of the sizing machine is 8-20kN, and the sizing speed is 70-80m/min.
10. The process for sizing an eddy current yarn according to claim 9, characterized in that: the drying temperature of the sizing machine is 90-110 ℃.
CN202310387995.0A 2023-04-12 2023-04-12 Sizing agent for vortex yarns and sizing process Pending CN116590924A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310387995.0A CN116590924A (en) 2023-04-12 2023-04-12 Sizing agent for vortex yarns and sizing process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310387995.0A CN116590924A (en) 2023-04-12 2023-04-12 Sizing agent for vortex yarns and sizing process

Publications (1)

Publication Number Publication Date
CN116590924A true CN116590924A (en) 2023-08-15

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Country Link
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