CN114351311A - Antistatic cotton-flax blended yarn and preparation method thereof - Google Patents
Antistatic cotton-flax blended yarn and preparation method thereof Download PDFInfo
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Abstract
The invention discloses an antistatic cotton-hemp blended yarn and a preparation method thereof. The preparation method of the antistatic cotton-flax blended yarn comprises the following steps: step 1: preparing alginate fibers and a pretreating agent for later use; step 2: separating the flax fibers, the cotton fibers and the alginate fibers treated by the sodium hydroxide, stacking the flax fibers, the cotton fibers and the alginate fibers in a loose manner, spraying a pretreating agent on the surface of the flax fibers, the cotton fibers and the alginate fibers, and drying the flax fibers, the cotton fibers and the alginate fibers to obtain flax fibers A, cotton fibers A and alginate fibers A; and step 3: opening and mixing the flax fibers A and the cotton fibers A to obtain cotton and linen raw strips; opening and mixing the alginate fibers A and the polyester fibers to obtain polyester raw strips; then opening and mixing the cotton-flax slivers and the polyester slivers to obtain mixed slivers; the spun yarn is obtained by carrying out cotton carding, drawing and roving processes; and 4, step 4: placing the spun yarn in a bleaching solution for degumming and bleaching; acid washing and water washing are carried out to obtain rough yarns; and then the antistatic cotton-hemp blended yarn is obtained through a spooling process, a twisting process and a two-for-one twisting process.
Description
Technical Field
The invention relates to the technical field of spinning, in particular to antistatic cotton-linen blended yarn and a preparation method thereof.
Background
The blended yarn is a yarn blended by making up for the advantages and disadvantages of various fibers; the advantages of different fibers are fully cooperated, the functions of the fabric are improved, and the application range is enlarged.
In common blending, cotton fibers and hemp fibers are usually used as natural fibers, so that the skin-friendly property, the moisture absorption property and the ultraviolet resistance are improved, but fabrics prepared from the natural fibers are easy to wrinkle and shrink; therefore, chemical fibers such as polyester fibers are used to improve defects by utilizing elasticity and wrinkle resistance, and the practicability of the fabric is enhanced. However, the added chemical fiber has electrostatic effect, so that the antistatic performance of the fabric is poor, and the web formation and the strip formation in the blending process are difficult; and the properties of the fibers are relatively different, the spinnability is low, the caking property is poor, the yarn density is reduced, the mechanical property is reduced, and the processing speed is relatively low. In the prior art, an antistatic agent is generally used for impregnating to improve the antistatic performance of the yarn; however, the impregnated antistatic agent migrates and falls off, and the washing resistance is poor.
The alginate fiber is a fiber with high hygroscopicity, high oxygen permeability and good compatibility, can improve the antistatic effect of the yarn due to hydrophilicity, porosity and polyvalent metal adsorption, but has low crystallinity and weak acting force among macromolecules, so that the alginate fiber has low strength and high brittleness, and the application of the alginate fiber is limited. Meanwhile, the surfaces of the alginate fibers and the polyester fibers are smooth, the radial holding power after the alginate fibers and the polyester fibers are twisted with fibrilia is low, and the mechanical property of the yarn is reduced. In addition, the traditional yarn degumming and bleaching process has damage to the fiber and low environmental protection property.
In conclusion, the preparation of the antistatic cotton-flax blended yarn has important significance in solving the problems.
Disclosure of Invention
The invention aims to provide an antistatic cotton-linen blended yarn and a preparation method thereof, so as to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme:
a preparation method of antistatic cotton-flax blended yarns comprises the following steps:
step 1: step 1: dissolving chitosan in a malic acid solution; adding a hydroxypropyl methyl cellulose solution and zinc oxide nano particles, uniformly mixing, and adjusting the pH value to 4.8-5.5; adding a tripolyphosphate solution, and stirring overnight; adding potassium hydroxide for neutralization; adding water for dilution; filtering; obtaining a chitosan compound and a filtrate; concentrating the filtrate, adding methacrylic acid lignosulfonate and glycine, and uniformly mixing to obtain a pretreating agent; freeze-drying the chitosan compound, adding the freeze-dried chitosan compound into a sodium alginate spinning solution, and performing electrostatic spinning to obtain alginate fibers;
step 2: soaking flax fibers in a sodium hydroxide solution for a period of time, and washing; separating the flax fibers, the cotton fibers and the alginate fibers, stacking the flax fibers, the alginate fibers and the alginate fibers in a loose manner, spraying a pretreating agent on the surface of the flax fibers and the alginate fibers, and drying the flax fibers, the cotton fibers and the alginate fibers to obtain flax fibers A, cotton fibers A and alginate fibers A;
and step 3: opening and mixing the flax fibers A and the cotton fibers A to obtain cotton and linen raw strips; opening and mixing the alginate fibers A and the polyester fibers to obtain polyester raw strips; then opening and mixing the cotton-flax slivers and the polyester slivers to obtain mixed slivers; the spun yarn is obtained by carrying out cotton carding, drawing and roving processes;
and 4, step 4: placing the spun yarn in a bleaching solution for degumming and bleaching; acid washing and water washing are carried out to obtain rough yarns; and then the antistatic cotton-hemp blended yarn is obtained through a spooling process, a twisting process and a two-for-one twisting process.
Preferably, the antistatic cotton-flax blended yarn comprises the following raw materials: 15-20 parts of cotton fiber, 25-30 parts of flax fiber, 10-15 parts of seaweed fiber and 40-50 parts of polyester fiber.
Preferably, the preparation method of the alginate fiber comprises the following steps: freeze-drying the 2-3 wt% chitosan compound obtained in the step 1, adding the freeze-dried chitosan compound into 4-6 wt% sodium alginate spinning solution, and uniformly stirring; and (4) carrying out electrostatic spinning to obtain the alginate fibers.
Preferably, in the step 2, the filtrate is concentrated until the solid content is 12-15 wt%, the addition amount of the methacrylic acid lignosulfonate is 4-5 wt%, and the addition amount of the glycine is 1-3 wt%; the liquid-solid ratio of the pretreatment agent to the flax fibers and the cotton fibers is 10mL:1 g; the liquid-solid ratio of the pretreating agent to the alginate fibers is 4mL:1 g.
Preferably, the preparation method of the bleaching solution comprises the following steps: and (2) taking NaOH-glycine buffer solution with the pH value of 8.6-9.0 as a solvent, adding 2-2.5 g/L of pectinase, 2.5-3 g/L of xylitol enzyme and 0.5-0.8 wt% of ethylenediamine tetraacetic acid, and uniformly mixing at 50-52 ℃ to obtain the bleaching solution.
Preferably, in step 4, the degumming and bleaching processes are as follows: placing the spun yarn into a bleaching solution, setting the bath ratio to be 1 (12-15), setting the temperature to be 50-55 ℃, the stirring speed to be 50-100 rpm, the stirring time to be 1-2 hours, taking out and placing for 5-8 hours, and finishing the treatment; the pickling process comprises the following steps: 2.5-3.2 g/L of sulfuric acid, the set temperature is 40 ℃, and the pickling time is 30 minutes.
Preferably, in the step 1, the concentration of the malic acid is 1-1.2 wt%; the hydroxypropyl methyl cellulose solution is 75-85 wt% aqueous solution; the mass ratio of the chitosan to the hydroxypropyl methyl cellulose to the zinc oxide nanoparticles is 5 (2-3) to 1-1.2.
Preferably, in step 2, the concentration of the sodium hydroxide solution is 4 wt%, and the soaking time is 1 hour.
Preferably, the preparation method of the methacrylic acid lignosulfonate comprises the following steps: placing lignosulfonic acid in polyethylene glycol for ultrasonic dispersion to form a 10 wt% uniform solution; adding methacrylic anhydride and 4-dimethylaminopyridine, setting the temperature to be 60-65 ℃, and reacting for 20-24 hours; after the reaction is finished, adding the product into isopropanol to precipitate a product, washing, filtering and drying to obtain the methacrylic acid lignosulfonate.
The antistatic cotton-hemp blended yarn is prepared by the preparation method of the antistatic cotton-hemp blended yarn.
According to the technical scheme, the spinnability of cotton and linen fibers is enhanced by using a pretreating agent; the interface acting force with the polyester fiber is improved; adding the chitosan compound into the alginate fibers to increase the spinnability of the alginate fibers; and the alginate fiber is taken as an antistatic agent, so that the problem of electrostatic interaction introduced by the polyester fiber is solved; therefore, the antistatic cotton-hemp blended yarn with excellent antistatic performance and mechanical performance is obtained by blending.
In the scheme, the chitosan compound is prepared and used for preparing alginate fibers; during the preparation process, hydroxypropyl methyl cellulose solution and zinc oxide nano particles are added.
The addition of the hydroxypropyl methyl cellulose can enhance the fluidity of a molecular chain of the alginate fiber, enhance the toughness and spinnability of the alginate fiber and solve the brittleness problem of the existing alginate fiber because the substance has a flexible side chain; meanwhile, due to the addition of the compound, the roughness of the surface of the alginate fiber is increased, so that the holding power between the alginate fiber and other fibers is enhanced, and the mechanical property is enhanced. However, because the viscosity of sodium alginate is high, the concentration of common spinning solution is crossed, in the scheme, the chitosan compound has various hydrophilic groups, and the viscosity of the spinning solution can be increased when the chitosan compound is added into the sodium alginate textile solution, so that the spinning is influenced, the addition of the added zinc oxide nanoparticles plays a certain viscosity reduction role, the continuity of the spinning of the sodium alginate is facilitated, and meanwhile, the addition of the nanoparticles is cooperated with ether bonds of hydroxypropyl methyl cellulose and hydrophilic groups in substances such as chitosan, and the antistatic performance is obviously enhanced. In addition, the alginate fiber also has excellent flame retardance, and the flame retardance of the yarn is obviously enhanced.
On the other hand, in the preparation process of the chitosan compound, the used acid solution is malic acid, and the used neutralizing alkali is potassium hydroxide; the two can form the malic acid and the alkali, and have separate substances which are dissolved in water, so the malic acid and the alkali are diluted and dissolved out by adding water; due to malic acid base; the inorganic salt is sprayed on cotton fibers and flax fibers, so that the immersion of air pollutants can be reduced due to the inorganic salt, and the cleanliness of the yarn is improved; meanwhile, the cohesion of the flax fibers and the cotton fibers is increased, and the spinnability is enhanced. In addition, methacrylic acid lignosulfonate and glycine are introduced into the pretreatment liquid; the anti-static performance is enhanced due to the hydrophilicity of the two substances; meanwhile, amido in the glycine and carboxylic acid on the surfaces of the cotton fiber and the flax fiber form amido bond; the methacrylated cyclic acid salt contains ester groups and hydrophilic groups, so that the compatibility with polyester fibers is enhanced; the complexation of potassium ions and sodium ions with hydroxyl groups; hydrogen bonding between carboxyl and hydroxyl groups; the interface action among cotton and hemp fibers, between alginate fibers and between polyester fibers is enhanced by various effects; therefore, the cohesiveness among various fibers is enhanced, so that the density of the yarn is enhanced, and the mechanical property of the yarn is obviously improved.
In the scheme, common bleaching and degumming steps are combined, a NaOH-glycine buffer solution with lower alkalinity is used as a solvent, and the pretreatment agent contains glycine and is cooperated with glycine in the NaOH-glycine buffer solution, so that the damage to yarns in the treatment process of substances such as common hydrogen peroxide, sodium hydroxide and the like is reduced, and the environmental pollution is reduced; simultaneously, carrying out a low-temperature degumming process by using pectinase and xylitol enzyme; the presence of glycine enhances the enzymatic degumming process; furthermore, ethylenediaminetetraacetic acid was added to inhibit the inhibition of the enzyme activity by metal ions. Meanwhile, due to the existence of the pretreating agent and the alginate fibers, the wetting property of the bleaching solution on the yarn is enhanced, and the decoloring process is enhanced.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the following examples, the preparation of methacrylic acid lignosulfonate was as follows: placing 1g of lignosulfonate in polyethylene glycol for ultrasonic dispersion to form a 10 wt% uniform solution; adding 40mL of methacrylic anhydride and 0.5g of 4-dimethylaminopyridine, setting the temperature to be 60 ℃, and reacting for 24 hours; after the reaction is finished, adding the product into isopropanol to precipitate a product, washing, filtering and drying to obtain the methacrylic acid lignosulfonate.
Example 1:
step 1: dissolving chitosan in 1.2 wt% malic acid solution; adding 80 wt% of hydroxypropyl methyl cellulose solution and zinc oxide nano particles, uniformly mixing, and adjusting the pH value to be 5.2; adding a tripolyphosphate solution, and stirring overnight; adding potassium hydroxide for neutralization; adding water for dilution; filtering; the filtrate is reserved, and the product is freeze-dried to obtain the chitosan compound. Concentrating the filtrate until the solid content is 14 wt%, adding 4 wt% of methacrylic acid lignosulfonate and 2 wt% of glycine, and uniformly mixing to obtain a pretreating agent; adding 3 wt% of chitosan compound into 5 wt% of sodium alginate spinning solution, and uniformly stirring; setting parameters as voltage 15kv and receiving distance as 10 cm; the flow rate is 1.2mL/h, and the alginate fiber is obtained by electrostatic spinning.
Step 2: weighing 18 parts of cotton fiber, 25 parts of flax fiber, 12 parts of alginate fiber and 45 parts of polyester fiber by weight; soaking flax fibers in a 4 wt% sodium hydroxide solution for 1 hour, and washing; separating the flax fibers, the cotton fibers and the alginate fibers, stacking the flax fibers, the alginate fibers and the alginate fibers in a loose mode, spraying a pretreating agent on the surface of the flax fibers and the alginate fibers, and drying the flax fibers, the cotton fibers and the alginate fibers to obtain the flax fibers A, the cotton fibers A and the alginate fibers A.
And step 3: opening and mixing the flax fibers A and the cotton fibers A to obtain cotton and linen raw strips; opening and mixing the alginate fibers A and the polyester fibers to obtain polyester raw strips; then opening and mixing the cotton-flax slivers and the polyester slivers to obtain mixed slivers; the spun yarn is obtained by carrying out cotton carding, drawing and roving processes.
And 4, step 4: (1) using NaOH-glycine buffer solution with pH of 8.8 as a solvent, adding 2.2g/L of pectinase, 2.8g/L of xylitol enzyme and 0.6 wt% of ethylenediamine tetraacetic acid, and uniformly mixing at 50 ℃ to obtain a bleaching solution. (2) Placing the spun yarn in a bleaching solution for degumming and bleaching treatment, setting the bath ratio at 1:14, the temperature at 52 ℃, the stirring speed at 60rpm, the stirring time at 1.5 hours, taking out and placing for 6 hours; transferring the mixture into 2.8g/L sulfuric acid, setting the temperature to be 40 ℃, and pickling for 30 minutes; washing with water to obtain rough yarns; and then the antistatic cotton-hemp blended yarn is obtained through a spooling process, a twisting process and a two-for-one twisting process.
In the technical scheme, the mass ratio of the chitosan to the hydroxypropyl methyl cellulose to the zinc oxide nanoparticles is 5:2.5: 1. The liquid-solid ratio of the pretreatment agent to the flax fibers and the cotton fibers is 10mL:1 g; the liquid-solid ratio of the pretreating agent to the alginate fibers is 4mL:1 g.
Example 2:
step 1: dissolving chitosan in 1 wt% malic acid solution; adding 75 wt% of hydroxypropyl methyl cellulose solution and zinc oxide nano particles, uniformly mixing, and adjusting the pH value to 5.5; adding a tripolyphosphate solution, and stirring overnight; adding potassium hydroxide for neutralization; adding water for dilution; filtering; the filtrate is reserved, and the product is freeze-dried to obtain the chitosan compound. Concentrating the filtrate until the solid content is 12 wt%, adding 5 wt% of methacrylic acid lignosulfonate and 3 wt% of glycine, and uniformly mixing to obtain a pretreating agent; adding 2 wt% of chitosan compound into 6 wt% of sodium alginate spinning solution, and uniformly stirring; setting parameters as voltage 15kv and receiving distance as 10 cm; the flow rate is 1.2mL/h, and the alginate fiber is obtained by electrostatic spinning.
Step 2: weighing 15 parts of cotton fiber, 25 parts of flax fiber, 10 parts of alginate fiber and 50 parts of polyester fiber by weight; soaking flax fibers in a 4 wt% sodium hydroxide solution for 1 hour, and washing; separating the flax fibers, the cotton fibers and the alginate fibers, stacking the flax fibers, the alginate fibers and the alginate fibers in a loose mode, spraying a pretreating agent on the surface of the flax fibers and the alginate fibers, and drying the flax fibers, the cotton fibers and the alginate fibers to obtain the flax fibers A, the cotton fibers A and the alginate fibers A.
And step 3: opening and mixing the flax fibers A and the cotton fibers A to obtain cotton and linen raw strips; opening and mixing the alginate fibers A and the polyester fibers to obtain polyester raw strips; then opening and mixing the cotton-flax slivers and the polyester slivers to obtain mixed slivers; the spun yarn is obtained by carrying out cotton carding, drawing and roving processes.
And 4, step 4: (1) using NaOH-glycine buffer solution with pH of 8.6 as a solvent, adding 2.5g/L of pectinase, 3g/L of xylitol enzyme and 0.5 wt% of ethylenediamine tetraacetic acid, and uniformly mixing at 50 ℃ to obtain a bleaching solution. (2) Placing the spun yarn in a bleaching solution for degumming and bleaching treatment, setting the bath ratio at 1:12, the temperature at 50 ℃, the stirring speed at 50rpm, the stirring time at 1 hour, taking out and placing for 5 hours; transferring the mixture into 2.5g/L sulfuric acid, setting the temperature to be 40 ℃, and pickling for 30 minutes; washing with water to obtain rough yarns; and then the antistatic cotton-hemp blended yarn is obtained through a spooling process, a twisting process and a two-for-one twisting process.
In the technical scheme, the mass ratio of the chitosan to the hydroxypropyl methyl cellulose to the zinc oxide nanoparticles is 5:2: 1. The liquid-solid ratio of the pretreatment agent to the flax fibers and the cotton fibers is 10mL:1 g; the liquid-solid ratio of the pretreating agent to the alginate fibers is 4mL:1 g.
Example 3:
step 1: dissolving chitosan in 1.2 wt% malic acid solution; adding 85 wt% of hydroxypropyl methyl cellulose solution and zinc oxide nano particles, uniformly mixing, and adjusting the pH value to be 4.8; adding a tripolyphosphate solution, and stirring overnight; adding potassium hydroxide for neutralization; adding water for dilution; filtering; the filtrate is reserved, and the product is freeze-dried to obtain the chitosan compound. Concentrating the filtrate until the solid content is 15 wt%, adding 4 wt% of methacrylic acid lignosulfonate and 1 wt% of glycine, and uniformly mixing to obtain a pretreating agent; adding 3 wt% of chitosan compound into 4 wt% of sodium alginate spinning solution, and uniformly stirring; setting parameters as voltage 15kv and receiving distance as 10 cm; the flow rate is 1.2mL/h, and the alginate fiber is obtained by electrostatic spinning.
Step 2: weighing 20 parts of cotton fiber, 30 parts of flax fiber, 10 parts of alginate fiber and 40 parts of polyester fiber by weight; soaking flax fibers in a 4 wt% sodium hydroxide solution for 1 hour, and washing; separating the flax fibers, the cotton fibers and the alginate fibers, stacking the flax fibers, the alginate fibers and the alginate fibers in a loose mode, spraying a pretreating agent on the surface of the flax fibers and the alginate fibers, and drying the flax fibers, the cotton fibers and the alginate fibers to obtain the flax fibers A, the cotton fibers A and the alginate fibers A.
And step 3: opening and mixing the flax fibers A and the cotton fibers A to obtain cotton and linen raw strips; opening and mixing the alginate fibers A and the polyester fibers to obtain polyester raw strips; then opening and mixing the cotton-flax slivers and the polyester slivers to obtain mixed slivers; the spun yarn is obtained by carrying out cotton carding, drawing and roving processes.
And 4, step 4: (1) using NaOH-glycine buffer solution with pH of 9.0 as a solvent, adding 2g/L of pectinase, 2.5g/L of xylitol enzyme and 0.8 wt% of ethylenediamine tetraacetic acid, and uniformly mixing at 52 ℃ to obtain a bleaching solution. (2) Placing the spun yarn in a bleaching solution for degumming and bleaching, setting the bath ratio at 1:15, the temperature at 55 ℃, the stirring speed at 100rpm, the stirring time at 2 hours, taking out and placing for 8 hours; transferring the mixture into 3.2g/L sulfuric acid, setting the temperature to be 40 ℃, and pickling for 30 minutes; washing with water to obtain rough yarns; and then the antistatic cotton-hemp blended yarn is obtained through a spooling process, a twisting process and a two-for-one twisting process.
In the technical scheme, the mass ratio of the chitosan to the hydroxypropyl methyl cellulose to the zinc oxide nanoparticles is 5:3: 1.2. The liquid-solid ratio of the pretreatment agent to the flax fibers and the cotton fibers is 10mL:1 g; the liquid-solid ratio of the pretreating agent to the alginate fibers is 4mL:1 g.
Comparative example 1: the alginate fibers are not added with the chitosan compound, and the rest is the same as the example 1;
comparative example 2: hydroxypropyl methylcellulose was directly substituted for the chitosan complex, the rest being the same as in example 1;
comparative example 3: the chitosan compound is not added with zinc oxide nano particles, and the rest is the same as the example 1;
comparative example 4: the same as in example 1 except that lignosulfonate was used instead of methacrylic lignosulfonate;
comparative example 5: the pretreatment agent was the same as in example 1 except that glycine was not added;
comparative example 6: the bleaching protocol was replaced, the rest being the same as in example 1;
the specific process comprises the following steps: and 4, step 4: placing the spun yarn in a solution of pectase with the double oxidation rate of 2g/L and xylitol enzyme with the double oxidation rate of 2.5g/L, setting the bath ratio at 1:14, the temperature at 52 ℃, the stirring speed at 60rpm, the stirring time at 1.5 hours, taking out and placing for 6 hours; transferring to bleaching solution of hydrogen peroxide and sodium hydroxide, adding sodium hydroxide to adjust pH to 10.5, bleaching at 90 deg.C for 1 hr, transferring to 2.8g/L sulfuric acid, setting temperature at 40 deg.C, and pickling for 30 min; washing with water to obtain rough yarns; and then the antistatic cotton-hemp blended yarn is obtained through a spooling process, a twisting process and a two-for-one twisting process.
Experiment: the antistatic cotton-flax blended yarns prepared in the examples and the comparative examples are taken and tested for various performances, and the specific data are as follows:
and (4) conclusion: the data in the table above show that: the prepared antistatic cotton-hemp blended yarn has excellent antistatic property, moderate whiteness, and higher breaking strength and elongation at break. The problems of low radial holding power caused by fiber property difference and reduced mechanical property caused by poor bonding force among fibers are solved. Reduces the damage of the fiber in the degumming and bleaching processes.
Comparing the data of example 1 with comparative examples 1 to 3, it can be found that: in comparative example 1, the mechanical properties, antistatic properties, spinnability were decreased without adding the chitosan complex, so that the twist unevenness was increased because: the hydroxypropyl methyl cellulose has flexible chain breakage, and the addition of the hydroxypropyl methyl cellulose enhances the fluidity of the molecular chain of the alginate fiber and the toughness of the alginate fiber; on the other hand, the hydrophilic groups in the chitosan and other substances enhance the antistatic property, and the chain-breaking fluidity can be increased; and the zinc oxide nano particles enhance the antistatic property and the roughness, and increase the holding power between the zinc oxide nano particles and fibers. Comparative example 2, the addition of hydroxypropylmethylcellulose alone, although it enhanced the tenacity of alginate fiber, decreased the properties due to the decrease in roughness and the decrease in hydrophilic groups; in the comparative example 3, the viscosity is increased because zinc oxide nanoparticles are not added, so that the spinning of the alginate fibers is broken, the fibers are short, and the adhesion and the defects exist among the fibers, so that the performance is reduced.
Comparing the data of example 1 with those of comparative examples 4 to 5, it can be found that: the mechanical properties and the twist unevenness of the two are reduced because: glycine and methacrylic acid lignosulfonate are amphoteric substances; glycine contains carboxyl and hydroxyl; the methacrylic acid lignosulfonate contains hydrophilic groups and ester groups; both can enhance the force between the fibers by using the properties of the amino group in the glycine and the carboxylic acid on the surfaces of the cotton fiber and the flax fiber to form an amido bond, and the methacrylic acid-modified cyclic acid salt contains an ester group and a hydrophilic group.
Comparing the data of example 1 with that of comparative example 6, it can be found that: the mechanical properties are reduced because: in the common steps, gaps among fibers are generated due to degumming, and bleaching is carried out in a bleaching solution with strong alkalinity, so that the treatment damages yarns, and the performance of the yarns is reduced.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The preparation method of the antistatic cotton-flax blended yarn is characterized by comprising the following steps of: the method comprises the following steps:
step 1: dissolving chitosan in a malic acid solution; adding a hydroxypropyl methyl cellulose solution and zinc oxide nano particles, uniformly mixing, and adjusting the pH value to 4.8-5.5; adding a tripolyphosphate solution, and stirring overnight; adding potassium hydroxide for neutralization; adding water for dilution; filtering; obtaining a chitosan compound and a filtrate; concentrating the filtrate, adding methacrylic acid lignosulfonate and glycine, and uniformly mixing to obtain a pretreating agent; freeze-drying the chitosan compound, adding the freeze-dried chitosan compound into a sodium alginate spinning solution, and performing electrostatic spinning to obtain alginate fibers;
step 2: soaking flax fibers in a sodium hydroxide solution for a period of time, and washing; separating the flax fibers, the cotton fibers and the alginate fibers, stacking the flax fibers, the alginate fibers and the alginate fibers in a loose manner, spraying a pretreating agent on the surface of the flax fibers and the alginate fibers, and drying the flax fibers, the cotton fibers and the alginate fibers to obtain flax fibers A, cotton fibers A and alginate fibers A;
and step 3: opening and mixing the flax fibers A and the cotton fibers A to obtain cotton and linen raw strips; opening and mixing the alginate fibers A and the polyester fibers to obtain polyester raw strips; then opening and mixing the cotton-flax slivers and the polyester slivers to obtain mixed slivers; the spun yarn is obtained by carrying out cotton carding, drawing and roving processes;
and 4, step 4: placing the spun yarn in a bleaching solution for degumming and bleaching; acid washing and water washing are carried out to obtain rough yarns; and then the antistatic cotton-hemp blended yarn is obtained through a spooling process, a twisting process and a two-for-one twisting process.
2. The method for preparing the antistatic cotton-hemp blended yarn according to claim 1, characterized in that: the antistatic cotton-flax blended yarn comprises the following raw materials: 15-20 parts of cotton fiber, 25-30 parts of flax fiber, 10-15 parts of seaweed fiber and 40-50 parts of polyester fiber.
3. The method for preparing the antistatic cotton-hemp blended yarn according to claim 1, characterized in that: the preparation method of the alginate fiber comprises the following steps: freeze-drying the 2-3 wt% chitosan compound obtained in the step 1, adding the freeze-dried chitosan compound into 4-6 wt% sodium alginate spinning solution, and uniformly stirring; and (4) carrying out electrostatic spinning to obtain the alginate fibers.
4. The method for preparing the antistatic cotton-hemp blended yarn according to claim 1, characterized in that: in the step 2, the filtrate is concentrated until the solid content is 12-15 wt%, the addition amount of the methacrylic acid lignosulfonate is 4-5 wt%, and the addition amount of the glycine is 1-3 wt%; the liquid-solid ratio of the pretreatment agent to the flax fibers and the cotton fibers is 10mL:1 g; the liquid-solid ratio of the pretreating agent to the alginate fibers is 4mL:1 g.
5. The method for preparing the antistatic cotton-hemp blended yarn according to claim 1, characterized in that: the preparation method of the bleaching solution comprises the following steps: and (2) taking NaOH-glycine buffer solution with the pH value of 8.6-9.0 as a solvent, adding 2-2.5 g/L of pectinase, 2.5-3 g/L of xylitol enzyme and 0.5-0.8 wt% of ethylenediamine tetraacetic acid, and uniformly mixing at 50-52 ℃ to obtain the bleaching solution.
6. The method for preparing the antistatic cotton-hemp blended yarn according to claim 1, characterized in that: in step 4, the degumming and bleaching treatment process comprises the following steps: placing the spun yarn into a bleaching solution, setting the bath ratio to be 1 (12-15), setting the temperature to be 50-55 ℃, the stirring speed to be 50-100 rpm, the stirring time to be 1-2 hours, taking out and placing for 5-8 hours, and finishing the treatment; the acid washing process is 2.5-3.2 g/L sulfuric acid.
7. The method for preparing the antistatic cotton-hemp blended yarn according to claim 1, characterized in that: in the step 1, the concentration of the malic acid is 1-1.2 wt%; the hydroxypropyl methyl cellulose solution is 75-85 wt% aqueous solution.
8. The method for preparing the antistatic cotton-hemp blended yarn according to claim 1, characterized in that: in the step 1, the mass ratio of the chitosan to the hydroxypropyl methyl cellulose to the zinc oxide nanoparticles is 5 (2-3) to (1-1.2).
9. The method for preparing the antistatic cotton-hemp blended yarn according to claim 1, characterized in that: the preparation method of the methacrylic acid lignosulfonate comprises the following steps: placing lignosulfonic acid in polyethylene glycol for ultrasonic dispersion to form a 10 wt% uniform solution; adding methacrylic anhydride and 4-dimethylaminopyridine, setting the temperature to be 60-65 ℃, and reacting for 20-24 hours; after the reaction is finished, adding the product into isopropanol to precipitate a product, washing, filtering and drying to obtain the methacrylic acid lignosulfonate.
10. The antistatic cotton-hemp blended yarn prepared by the preparation method of the antistatic cotton-hemp blended yarn according to any one of claims 1-9.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020189022A1 (en) * | 2001-06-05 | 2002-12-19 | Chang Wen Chung | Method for the treatment of textiles after washing |
| CN106757600A (en) * | 2016-11-30 | 2017-05-31 | 义乌市麻尚生针织品有限公司 | A kind of preparation method of antibacterial cotton bast yarn and thread |
| CN112030264A (en) * | 2020-09-10 | 2020-12-04 | 温岭市妮珂芙服饰有限公司 | Preparation method of high-toughness carbon nanofiber reinforced non-woven fabric |
| CN112553735A (en) * | 2020-11-30 | 2021-03-26 | 闽江学院 | Method for improving moisture absorption performance and fragrance of blended yarn by using electrostatic spinning process |
| WO2021155734A1 (en) * | 2020-02-07 | 2021-08-12 | 山东省科学院生物研究所 | Malate dehydrogenase electrode, and preparation method therefor and use thereof |
| WO2021212900A1 (en) * | 2020-04-21 | 2021-10-28 | He Jianxiong | Odorless tpu thin film for diapers and preparation method therefor |
-
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- 2022-02-17 CN CN202210145013.2A patent/CN114351311B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020189022A1 (en) * | 2001-06-05 | 2002-12-19 | Chang Wen Chung | Method for the treatment of textiles after washing |
| CN106757600A (en) * | 2016-11-30 | 2017-05-31 | 义乌市麻尚生针织品有限公司 | A kind of preparation method of antibacterial cotton bast yarn and thread |
| WO2021155734A1 (en) * | 2020-02-07 | 2021-08-12 | 山东省科学院生物研究所 | Malate dehydrogenase electrode, and preparation method therefor and use thereof |
| WO2021212900A1 (en) * | 2020-04-21 | 2021-10-28 | He Jianxiong | Odorless tpu thin film for diapers and preparation method therefor |
| CN112030264A (en) * | 2020-09-10 | 2020-12-04 | 温岭市妮珂芙服饰有限公司 | Preparation method of high-toughness carbon nanofiber reinforced non-woven fabric |
| CN112553735A (en) * | 2020-11-30 | 2021-03-26 | 闽江学院 | Method for improving moisture absorption performance and fragrance of blended yarn by using electrostatic spinning process |
Non-Patent Citations (1)
| Title |
|---|
| 桑彩霞: "《海藻纤维医用敷料及其抗菌改性研究》", 《新型纺织材料》 * |
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