CN118704130B - A high-performance composite yarn based on acetate filament and preparation method thereof - Google Patents

A high-performance composite yarn based on acetate filament and preparation method thereof Download PDF

Info

Publication number
CN118704130B
CN118704130B CN202410803354.3A CN202410803354A CN118704130B CN 118704130 B CN118704130 B CN 118704130B CN 202410803354 A CN202410803354 A CN 202410803354A CN 118704130 B CN118704130 B CN 118704130B
Authority
CN
China
Prior art keywords
filaments
acetate
acetate filaments
acetic acid
spinning
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202410803354.3A
Other languages
Chinese (zh)
Other versions
CN118704130A (en
Inventor
刘明
史秀芳
张世娟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Yuexin Textile Technology Co ltd
Original Assignee
Guangdong Yuexin Textile Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangdong Yuexin Textile Technology Co ltd filed Critical Guangdong Yuexin Textile Technology Co ltd
Priority to CN202410803354.3A priority Critical patent/CN118704130B/en
Publication of CN118704130A publication Critical patent/CN118704130A/en
Application granted granted Critical
Publication of CN118704130B publication Critical patent/CN118704130B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
    • D02G3/04—Blended or other yarns or threads containing components made from different materials
    • D02G3/045—Blended or other yarns or threads containing components made from different materials all components being made from artificial or synthetic material
    • 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
    • D01F1/00—General methods for the manufacture of artificial filaments or the like
    • D01F1/02—Addition of substances to the spinning solution or to the melt
    • D01F1/10—Other agents for modifying properties
    • 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
    • D01F2/00—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof
    • D01F2/24—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from cellulose derivatives
    • D01F2/28—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from cellulose derivatives from organic cellulose esters or ethers, e.g. cellulose acetate
    • 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
    • D01F6/88—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
    • D01F6/90—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of polyamides
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/26—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre with characteristics dependent on the amount or direction of twist
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/38—Threads in which fibres, filaments, or yarns are wound with other yarns or filaments, e.g. wrap yarns, i.e. strands of filaments or staple fibres are wrapped by a helically wound binder yarn
    • 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
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/38—Oxides or hydroxides of elements of Groups 1 or 11 of the Periodic Table
    • 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
    • D06M2101/02—Natural fibres, other than mineral fibres
    • D06M2101/04—Vegetal fibres
    • D06M2101/06—Vegetal fibres cellulosic
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2201/00—Cellulose-based fibres, e.g. vegetable fibres
    • D10B2201/20—Cellulose-derived artificial fibres
    • D10B2201/28—Cellulose esters or ethers, e.g. cellulose acetate
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/02—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2401/00—Physical properties
    • D10B2401/06—Load-responsive characteristics
    • D10B2401/063—Load-responsive characteristics high strength
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
    • Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Abstract

本发明公开了一种基于醋酸长丝的高性能复合纱，所述复合纱采用双股加捻结构，所述复合纱为2～3股醋酸长丝同向加捻在胶原蛋白锦纶长丝上。本发明通过将醋酸长丝和胶原蛋白锦纶长丝通过加捻的方式组合在一起，通过胶原蛋白锦纶长丝来改善醋酸长丝强力低等的缺点，同时使产品同时具有两种原料的所有优点。另一方面，采用的同向加捻的方式，其力学性能上具有更高的断裂强力和断裂伸长率，有效扩展了醋酸长丝的应用场景。

The present invention discloses a high-performance composite yarn based on acetate filaments, wherein the composite yarn adopts a double-twisted structure, and the composite yarn is 2 to 3 strands of acetate filaments twisted in the same direction on collagen nylon filaments. The present invention combines acetate filaments and collagen nylon filaments by twisting, and improves the disadvantages of low strength of acetate filaments by using collagen nylon filaments, while making the product have all the advantages of both raw materials. On the other hand, the same-direction twisting method adopted has higher breaking strength and breaking elongation in mechanical properties, which effectively expands the application scenarios of acetate filaments.

Description

High-performance composite yarn based on acetic acid filaments and preparation method thereof
The application relates to a split application of patent number 202311194075.3, application date 2023-09-15, named as composite yarn based on acetic acid filaments and collagen nylon filaments and a preparation method thereof.
Technical Field
The invention belongs to the technical field of spinning, and particularly relates to a high-performance composite yarn based on acetic acid filaments and a preparation method thereof.
Background
Acetate fibers (CA fibers) have wide ranging applications and can be used to make cigarette filters, textiles, liquid Crystal Displays (LCDs), film substrates, etc., with the most widespread use for making cigarette filters, about 80% of the world being used to make cigarette filters and the other parts being used in textile and other fields.
CA fibers have a weakness that is quite low in strength, which adds many difficulties to spinning, and products made from CA fibers cannot be used in fields where special strength requirements are placed. In addition, CA is obtained by substituting hydroxyl groups on cellulose with acetyl groups. The hydrophilicity of CA was significantly reduced compared to cellulose. Therefore, when it is used as a garment material, the wearing comfort is also reduced. In addition, the lower hygroscopicity of CA also affects its use to some extent, for example, fibers with low hygroscopicity are not suitable for use in the face fabric of summer clothing.
The characteristics of CA greatly influence the application scene of CA, and various limitations exist.
Disclosure of Invention
The invention aims to solve the technical problems and provides a high-performance composite yarn based on acetic acid filaments and a preparation method thereof.
In order to solve the problems, the invention is realized according to the following technical scheme:
in a first aspect, the invention provides a high-performance composite yarn based on acetic acid filaments, the composite yarn adopts a double-strand twisting structure, and the composite yarn is formed by twisting 2-3 strands of acetic acid filaments on collagen nylon filaments in the same direction.
With reference to the first aspect, the present invention also provides a1 st preferred embodiment of the first aspect, specifically, the acetate filaments are acetate filaments subjected to alcoholysis modification, and the alcoholysis modification includes the following steps:
Preparing 0.5mol/L sodium hydroxide alcohol solution by using absolute ethyl alcohol as a solvent, and taking the sodium hydroxide alcohol solution as an alcoholysis solution for standby;
immersing the acetic acid filaments in an alcoholysis solution, taking out the acetic acid filaments after 1h at normal temperature, and cleaning the alcoholysis acetic acid filaments with deionized water for 2-3 times, each time for 10min;
and (3) cleaning, and drying the alcoholysis acetic acid filaments at room temperature.
With reference to the first aspect, the present invention also provides a2 nd preferred embodiment of the first aspect, specifically, the preparation method of the acetic acid filament further includes the following steps:
preparing a mixed solution of acetone with the mass fraction of 90% and N, N-dimethylacetamide with the mass fraction of 10%, and preparing a CA spinning stock solution with the mass fraction of 20% by taking the mixed solution as a solvent;
Adding 3% of cellulose nanocrystalline into the CA spinning solution, and fully and uniformly stirring;
the acetate filaments are prepared through wet spinning, wherein a wet spinning machine is adopted for spinning, the set technological parameters of spinning are that a drafting roller is 2.00m/min, a first roller is 2.00m/min, a second roller is 2.00m/min, traversing is 2 times/min, winding is 1.80m/min, and spinning is carried out at room temperature.
With reference to the first aspect, the invention further provides a 3 rd preferred embodiment of the first aspect, specifically, the collagen nylon filament is loaded with nano zinc oxide.
With reference to the first aspect, the invention also provides a4 th preferred embodiment of the first aspect, specifically, the preparation method of the collagen nylon filament includes the following steps:
Selecting a masterbatch adding device, namely slicing collagen masterbatch, nano zinc oxide and polyamide 6 in a bright way, metering the collagen masterbatch, the nano zinc oxide and the polyamide 6 by a metering feeder, respectively conveying the slices into a screw extruder, fully melting, mixing and extruding the slices, wherein the mass fraction of the collagen masterbatch is 7 percent, and the mass fraction of the nano zinc oxide is 6 percent;
the melt is precisely measured by a metering pump and then enters a spinning component, and is sprayed out by a spinneret plate to form a filament bundle.
With reference to the first aspect, the present invention further provides a 5 th preferred embodiment of the first aspect, specifically, the linear density of the acetate filaments is 82.5dtex, and the linear density of the collagen nylon filaments is 76.78dtex.
In a second aspect, the present invention also provides a method for preparing the high performance composite yarn based on acetate filaments according to the first aspect, the method comprising the steps of:
twisting 2-3 strands of acetate filaments on the collagen nylon filaments in the same direction by adopting a yarn twisting machine;
wherein the speed of the double twisting spindle in the twisting process is set to be 500r/min, and the twisting degree is 150 twists/10 cm.
Compared with the prior art, the invention has the beneficial effects that:
the invention provides a high-performance composite yarn based on acetic acid filaments, which adopts a double-strand twisting structure, wherein 2-3 strands of acetic acid filaments are twisted on collagen nylon filaments in the same direction.
According to the invention, the acetic acid filaments and the collagen nylon filaments are combined together in a twisting mode, so that the defects of low strength and the like of the acetic acid filaments are overcome through the collagen nylon filaments, and meanwhile, the product has all the advantages of the two raw materials. On the other hand, the adopted mode of twisting in the same direction has higher breaking strength and breaking elongation in mechanical property, and effectively expands the application scene of the acetate filaments.
Drawings
The invention is described in further detail below with reference to the attached drawing figures, wherein:
FIG. 1 is a schematic structural view of a high performance composite yarn based on acetate filaments of the present invention, wherein 3 strands of acetate filaments are twisted in the same direction on a collagen nylon filament;
in the figure:
1.2, 3-acetic acid filaments;
4-collagen nylon filament.
Detailed Description
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present invention only, and are not intended to limit the present invention.
As shown in FIG. 1, a preferred construction of the acetate filament-based high performance composite yarn of the present invention.
According to the invention, the high-performance composite yarn based on the acetate filaments adopts a double-strand twisting structure, and the composite yarn is formed by twisting 2-3 strands of acetate filaments on collagen nylon filaments in the same direction.
According to the invention, the acetic acid filaments and the collagen nylon filaments are combined together in a twisting mode, so that the defects of low strength and the like of the acetic acid filaments are overcome through the collagen nylon filaments, and meanwhile, the product has all the advantages of the two raw materials. On the other hand, the adopted mode of twisting in the same direction has higher breaking strength and breaking elongation in mechanical property, and effectively expands the application scene of the acetate filaments.
1. Acetic acid filaments according to the invention
The acetate filaments are similar to real silk in chemical fibers, have elegant luster, bright dyeing, strong dyeing fastness, soft and smooth hand feeling, light texture, low moisture regain, good elasticity, difficult wrinkling and good drapability, thermoplasticity and dimensional stability. The acetic acid filament has the characteristics that:
1. the good thermoplasticity is that the acetate fiber is softened at 200-230 ℃ and melted at 260 ℃, and the characteristic ensures that the acetate fiber has thermoplasticity similar to that of synthetic fiber, does not recover the shape after plastic deformation, and has permanent deformation. The fabric woven by the acetate filaments has good formability, can beautify the human body curve, and is elegant in whole.
2. The acetate fiber can be dyed with disperse dye, and has good coloring performance, bright color and superior coloring performance to other cellulose fiber. The acetate fiber is softened at 200-230 ℃ and melted at 260 ℃ and is similar to the synthetic fiber, and the shape of the acetate fiber is not recovered after plastic deformation, so that the acetate fiber has permanent deformation.
3. The appearance is similar to that of mulberry silk, the appearance luster of acetate fiber is similar to that of mulberry silk, the feel is soft and smooth, the specific gravity is the same as that of mulberry silk, and therefore the draping feel and the mulberry silk are free from abnormal appearance. The fabric woven by the acetate filaments is easy to wash and dry, and the fabric is mildew-proof and mothproof, and has better elasticity than viscose.
4. The performance is close to that of mulberry silk, compared with the physical and mechanical properties of viscose fiber and mulberry silk, the acetate fiber has lower strength, larger elongation at break, lower ratio of wet strength to dry strength, higher than that of viscose fiber, small initial modulus, lower moisture regain than that of viscose fiber and mulberry silk, higher ratio of wet strength to dry strength than that of synthetic fiber, and the relative hooking strength to knotting strength, elastic recovery rate and the like are not much different from those of mulberry silk. Thus the acetate fiber has the performance closest to that of mulberry silk in chemical fiber.
5. The acetate fabric is uncharged, is not easy to adsorb dust in air, can be dry-cleaned, water-cleaned and hand-cleaned by a machine below 40 ℃, overcomes the defect that the silk and wool fabric is multi-band and only dry-cleaned with dust, has no defect that the silk and wool fabric is easy to be damaged by worms, is easy to be managed and collected, and has rebound resilience and smooth hand feeling.
In a preferred embodiment, the method for preparing the acetate filaments further comprises the steps of:
Step S1, preparing a mixed solution of 90% of acetone and 10% of N, N-dimethylacetamide by mass fraction, and preparing a CA spinning stock solution with 20% of mass fraction by taking the mixed solution as a solvent;
And S2, adding 3% of cellulose nanocrystalline into the CA spinning solution, and fully and uniformly stirring.
In one implementation, a homogenizer is adopted for high-speed stirring, the stirring time is 30min, and the rotating speed is 30000rpm, so that cellulose nanocrystals can be well and uniformly dispersed in the CA spinning solution, and then the CA spinning solution is placed in an ultrasonic cleaner for continuous ultrasonic standby.
And S3, preparing an acetic acid filament through wet spinning, wherein a wet spinning machine is adopted for spinning, the set technological parameters of spinning are that a drafting roller is 2.00m/min, a first roller is 2.00m/min, a second roller is 2.00m/min, traversing is2 times/min, winding is carried out for 1.80m/min, and spinning is carried out at room temperature.
According to the invention, cellulose Nanocrystals (CNC) are added into the CA spinning stock solution to enhance the acetic acid filaments, and are nanoscale substances extracted from natural cellulose such as wood, cotton, straw, reed, hemp and bagasse, so that the cellulose nanoparticles have the characteristics of nanoparticles, high orientation, high strength, high elastic modulus, large length-diameter ratio and the like, can be completely degraded, and can be used as a reinforcing material with excellent performance in CA fibers.
Product testing of acetic acid filaments
(1) X-ray diffraction (XRD) analysis the crystalline structure of CNC was analyzed using an X-ray diffractometer. The scanning angle range is 10-90 degrees, and the scanning speed is 5 degrees/min.
Through analysis, the cellulose nanocrystalline in the acetic acid filament is a crystal form structure of cellulose II.
(2) Scanning Electron Microscopy (SEM) analysis the morphology of the acetate filaments was observed using a field emission scanning electron microscope. SEM parameters were set to a metal spraying time of 240s and an operating voltage of 10kV. By comparing the change conditions (0%, 1%, 3% and 5%) of the fiber diameter and morphology under different cellulose nanocrystal concentrations.
According to analysis, the diameter distribution of the acetate filaments is gradually widened along with the increase of the concentration of the cellulose nanocrystals, wherein the diameter distribution of the 0% doped acetate filaments is 150-350 nm, and when the concentration of the cellulose nanocrystals is increased to 1% or 3%, the diameter distribution of the acetate filaments is 150-400 nm, which are not quite different. When the concentration of the cellulose nanocrystals is increased to 5%, the diameter distribution interval of the acetate filament composite fibers is gradually increased to 150-950 nm. The reason for influencing the broadening of the fiber distribution is the poor dispersibility of the cellulose nanocrystal reinforcement, which gradually deteriorates as its concentration increases, resulting in a deterioration of the uniformity of the acetic acid filaments, thus exhibiting a wider diameter distribution.
On the other hand, as the concentration of cellulose nanocrystals increases, the average diameter of the acetate filaments gradually increases. The viscosity of the spinning solution increases, and thus the fiber diameter tends to increase.
(3) The mechanical property of the fiber sample is tested by adopting an electronic single yarn strength tester. The linear density of each fiber sample was measured before the test, and the pre-tension required for the sample was calculated at (0.5.+ -. 0.1) cN/tex based on the measured linear density. The parameters of the instrument are set as clamping gauge, 100mm, stretching speed, 100mm/min, temperature, 20 ℃ and humidity, 65%.
Experiments show that with the increase of the concentration of the cellulose nanocrystals, the breaking stress and the breaking elongation of the acetate filaments both show a tendency of increasing and then decreasing, as shown in the following table.
In a preferred embodiment, the acetate filaments used in the present invention are alcoholysis modified acetate filaments.
Through alcoholysis modification, the fiber surface of the cellulose acetate filaments is more compact after alcoholysis, and the mechanical properties of the cellulose acetate filaments are comprehensively improved in cooperation with CNC doping. On the other hand, the acetate filaments and the collagen nylon filaments are combined together in a twisting mode, and the defects of low strength and the like of the acetate filaments are synergistically improved through three combination technical means, so that the product has all the advantages of the two raw materials at the same time, and the application scene of the acetate filaments is greatly expanded.
In one embodiment, the invention also provides an embodiment of the alcoholysis modification comprising the steps of:
Step S1, preparing 0.5mol/L sodium hydroxide alcohol solution by using absolute ethyl alcohol as a solvent, and taking the solution as alcoholysis solution for standby;
Step S2, immersing the acetic acid filaments in an alcoholysis liquid, taking out the acetic acid filaments after 1h at normal temperature, and cleaning the alcoholysis acetic acid filaments with deionized water for 2-3 times, each time for 10min;
and step S3, cleaning, and then drying the alcoholysis acetic acid filaments at room temperature.
The surface of the fiber is more compact after the alcoholysis of the acetate filaments, and the mechanical property is improved to a certain extent compared with the acetate filaments before modification. The alcoholysis acetic acid filament has the moisture absorption performance comparable with that of viscose and bamboo fiber and more excellent moisture release performance, can improve wearing comfort, and can be further applied to the field of textile and clothing.
Through testing, the mechanical properties of the product are changed as follows:
the breaking strength of the fiber before and after alcoholysis is slightly improved, and the breaking strength of the acetic acid filament obtained after alcoholysis is increased, because the acetyl falls off, the molecular chain regularity is better, and the hydrogen bond content in the molecule is increased, so that the strength is increased.
On the other hand, the wet strength of the acetate filaments was greatly reduced compared to the dry strength. The elongation at break of the acetate filaments in the wet state is obviously increased by about 1.3 times of that of the CA fibers, and in addition, the elongation at break of the acetate filaments is 1.7 times of that of the acetate filaments in the wet state than that of the acetate filaments in the dry state. Thus, overall, the mechanical properties of the fibers obtained after alcoholysis are improved to some extent.
On the other hand, since acetyl groups on the alcoholysis acetate filaments are replaced by hydrophilic hydroxyl groups, the moisture absorption and desorption properties of the fibers are also affected. The difference of the hygroscopicity and the hygroscopicity of the fibers before and after alcoholysis is measured. And the moisture absorption and release properties of the other two cellulose fibers (viscose and bamboo fibers) are selected as a comparison.
The moisture absorption of viscose is best, the moisture regain is about 8%, the moisture absorption of bamboo fiber is the second, the moisture regain is about 7.5%, the moisture regain of alcoholysis acetic acid filament is slightly lower than that of viscose and bamboo fiber, about 7%, the moisture regain of acetic acid filament is obviously lower than that of other three cellulose samples, and only about 3.3%. The moisture absorption rates of the four samples also have certain difference, wherein the moisture absorption rates of the viscose and the bamboo fiber are slightly faster than those of the cellulose acetate filaments after alcoholysis, but the moisture absorption rates of the three samples are obviously higher than those of the cellulose acetate filaments.
In one aspect, the wet performance of the alcoholyzed acetate filaments is optimal with a maximum moisture reduction of about 1.8%, followed by an adhesive of about 1.5%, followed by a bamboo fiber of about 1.2%, and the worst acetate filaments have a moisture reduction of only about 1.0%. The moisture release rate of the alcoholysis acetate filaments is obviously superior to that of the other three samples, the moisture release rates of the bamboo fiber and the acetate filaments are close, and the viscose is only slightly faster than the two samples. Therefore, the cellulose acetate filaments obtained by alcoholysis have the hygroscopicity close to that of viscose and bamboo fibers, and the moisture release performance of the cellulose acetate filaments is slightly better than that of regenerated cellulose fibers of two fibers.
The special acetate filaments are selected to endow the composite yarn with excellent mechanical property and moisture absorption property, and the prepared fabric, clothing and the like can absorb sweat discharged by human body more easily, and simultaneously can discharge the moisture absorbed by sweat more quickly, so that the human body feels comfortable, and the fabric is suitable for preparing summer clothing or functional clothing.
2. Collagen nylon filament yarn according to the present invention
Collagen nylon fiber is a novel textile material for developing clothing textiles, the transverse cross section of the fiber is irregularly round, and the longitudinal surface of the fiber is provided with raised particles.
In one embodiment, the collagen nylon filaments employed in the present invention are loaded with nano zinc oxide.
Furthermore, the invention also provides a preparation method of the collagen nylon filament, which specifically comprises the following steps:
step S1, selecting a masterbatch adding device, slicing collagen masterbatch, nano zinc oxide and polyamide 6 with light, metering by a metering feeder, respectively delivering into a screw extruder, fully melting, mixing and extruding, wherein the mass fraction of the collagen masterbatch is 7%, and the mass fraction of the nano zinc oxide is 6%;
In one implementation, the screw zone temperatures and the tank temperatures during the melting process are 256, 258, 260, 262, 263, and 263 ℃, respectively.
And S2, accurately metering the melt by a metering pump, feeding the melt into a spinning assembly, and spraying the melt by a spinneret plate to form a filament bundle.
In one implementation, the number of spinneret holes on a spinneret plate in the step S2 is 24, the single-pumped filament bundle is cooled by a lateral blowing, the cooling temperature is 23 ℃, the humidity is 85%, the wind speed is 0.53m/S, the oil concentration of the fiber cooled by the lateral blowing is 6% by accurately metering the oil concentration of the fiber bundle through a nozzle, and the collagen nylon filament is prepared by winding and forming the oil-coated filament bundle through a pre-network device and a filament guide disc at the production speed of 4300 m/min.
Product test of collagen nylon filaments
(1) The test was carried out according to GB/T20944.3-2008 section 3-vibration method for evaluation of antibacterial Properties of textiles. The standard stipulates that for a general sample, the antibacterial rate of the test escherichia coli is more than or equal to 70%, the antibacterial rate of staphylococcus aureus is more than or equal to 70%, and the antibacterial rate of candida albicans is more than or equal to 60%, so that the sample has antibacterial performance.
Through tests, the antibacterial rates of the collagen nylon filament added with nano zinc oxide on escherichia coli, staphylococcus aureus and candida albicans all reach national standard judgment values, so that the collagen nylon filament has antibacterial performance.
(2) The test is carried out with reference to GB/T35263-2017 "detection and evaluation of textile contact instant Cool feel Performance". The standard prescribes that for a general sample, the contact cooling sensation coefficient of the test should not be lower than 0.15J/(cm.s), and the sample has cooling sensation performance.
According to the test, the contact cool feeling coefficient of the collagen nylon filament obtained through melt spinning is 0.32J/(cm & s), reaches the national standard judgment value, and shows that the collagen nylon filament has cool feeling performance.
(3) The tensile property test is carried out by adopting a YG023B-III single yarn strength machine and referring to GB/T14344-2008 'chemical fiber filament tensile test method'.
Experiments show that the addition of the collagen masterbatch reduces the breaking strength of the collagen nylon filaments to different degrees, a small amount of inorganic powder and a melt have a difference in compatibility, so that shearing stress appears at a two-phase boundary to cause fiber breakage, and when the addition of the masterbatch is increased from 5% to 7%, the breaking strength of the collagen nylon filaments slightly increases, and as the inorganic powder increases, the collagen nylon filaments are partially compatible with the melt to a certain degree, the chain segment connection is enhanced, and the fiber breakage in the drawing process is prevented.
The invention also provides a preparation method of the high-performance composite yarn based on the acetic acid filament yarn, which comprises the following steps:
twisting 2-3 strands of acetate filaments on the collagen nylon filaments in the same direction by adopting a yarn twisting machine;
Wherein the speed of the double twisting spindle in the twisting process is set to be 500r/min, and the twisting degree is 150 twists/10 cm. The linear density of the acetate filaments is 82.5dtex, and the linear density of the collagen nylon filaments is 76.78dtex.
According to the invention, the acetic acid filaments and the collagen nylon filaments are combined together in a twisting mode, so that the defects of low strength and the like of the acetic acid filaments are overcome through the collagen nylon filaments, and meanwhile, the product has all the advantages of the two raw materials. On the other hand, the adopted mode of twisting in the same direction has higher breaking strength and breaking elongation in mechanical property, and effectively expands the application scene of the acetate filaments.
Other structures of a high performance composite yarn based on acetate filaments and a method of making the same as described in this example are seen in the prior art.
The present invention is not limited to the preferred embodiments, and any modifications, equivalent variations and modifications made to the above embodiments according to the technical principles of the present invention are within the scope of the technical proposal of the present invention.

Claims (3)

1. A high performance composite yarn based on acetate filaments, characterized by:
the composite yarn is formed by twisting 2-3 strands of acetate filaments on a collagen nylon filament core yarn in the same direction, and the breaking strength of the composite yarn is 6.21cN/tex and the breaking elongation is 60.32%;
the linear density of the acetate filaments is 82.5dtex, and the linear density of the collagen nylon filaments is 76.78dtex;
The acetate filaments are alcoholysis modified acetate filaments, the diameters of the acetate filaments are distributed between 150 and 400nm, the acetate filaments are softened at 200-230 ℃ and melted at 260 ℃, the breaking strength of the acetate filaments in a dry state is 7.53cN/tex, the breaking elongation of the acetate filaments is 30.58%, and the breaking strength of the acetate filaments in a wet state is 5.52cN/tex, and the breaking elongation of the acetate filaments is 54.58%; the preparation method of the acetic acid filament yarn further comprises the following steps:
preparing a mixed solution of acetone with the mass fraction of 90% and N, N-dimethylacetamide with the mass fraction of 10%, and preparing a CA spinning stock solution with the mass fraction of 20% by taking the mixed solution as a solvent;
Adding cellulose nanocrystalline with the mass fraction of 3% into the CA spinning solution, fully and uniformly stirring, specifically, adopting a refiner to stir at a high speed for 30min and at a rotating speed of 30000rpm, and then placing the CA spinning solution into an ultrasonic cleaner for continuous ultrasonic standby;
preparing an acetic acid filament through wet spinning, wherein a wet spinning machine is adopted for spinning, the spinning is set with the technological parameters of 2.00m/min of a drafting roller, 2.00m/min of a first roller, 2.00m/min of a second roller, 2 times/min of transverse movement, 1.80m/min of winding and spinning at room temperature;
wherein, the cellulose nanocrystalline in the acetic acid filament is a crystal structure of cellulose II;
the collagen nylon filament is loaded with nano zinc oxide, the breaking strength of the collagen nylon filament is 6.75cN/tex, and the breaking elongation is 65.38%, and the preparation method of the collagen nylon filament comprises the following steps:
A master batch adding device is selected, collagen master batch, nano zinc oxide and polyamide 6 are sliced optically, and are respectively sent into a screw extruder after being metered by a metering feeder, and are mixed and extruded after being fully melted, wherein the mass fraction of the collagen master batch is 7 percent, the mass fraction of the nano zinc oxide is 6 percent, and the temperature of each area of the screw and the box body temperature are 256, 258, 260, 262, 263 and 263 ℃ respectively in the melting process;
The melt is precisely measured by a metering pump and then enters a spinning assembly, and is sprayed out by a spinneret plate to form filament bundles, wherein the number of spinneret holes on the spinneret plate is 24, and the filament bundles sucked by a monomer are cooled by a lateral blowing, the cooling temperature is 23 ℃, the humidity is 85%, and the wind speed is 0.53m/s.
2. The high performance composite yarn based on acetate filaments according to claim 1 wherein said alcoholysis modification comprises the steps of:
Preparing 0.5mol/L sodium hydroxide alcohol solution by using absolute ethyl alcohol as a solvent, and taking the sodium hydroxide alcohol solution as an alcoholysis solution for standby;
immersing the acetic acid filaments in an alcoholysis solution, taking out the acetic acid filaments after 1h at normal temperature, and cleaning the alcoholysis acetic acid filaments with deionized water for 2-3 times, each time for 10min;
and (3) cleaning, and drying the alcoholysis acetic acid filaments at room temperature.
3. A method of producing a high performance composite yarn based on acetate filaments as claimed in claim 1, wherein said method of producing comprises the steps of:
Twisting 2-3 strands of acetate filaments on the collagen nylon filament core yarn in the same direction by adopting a yarn twisting machine;
wherein the speed of the double twisting spindle in the twisting process is set to be 500r/min, and the twisting degree is 150 twists/10 cm.
CN202410803354.3A 2023-09-15 2023-09-15 A high-performance composite yarn based on acetate filament and preparation method thereof Active CN118704130B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202410803354.3A CN118704130B (en) 2023-09-15 2023-09-15 A high-performance composite yarn based on acetate filament and preparation method thereof

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202311194075.3A CN117210987B (en) 2023-09-15 2023-09-15 Composite yarn based on acetate filaments and collagen nylon filaments and preparation method thereof
CN202410803354.3A CN118704130B (en) 2023-09-15 2023-09-15 A high-performance composite yarn based on acetate filament and preparation method thereof

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CN202311194075.3A Division CN117210987B (en) 2023-09-15 2023-09-15 Composite yarn based on acetate filaments and collagen nylon filaments and preparation method thereof

Publications (2)

Publication Number Publication Date
CN118704130A CN118704130A (en) 2024-09-27
CN118704130B true CN118704130B (en) 2025-01-24

Family

ID=89036651

Family Applications (2)

Application Number Title Priority Date Filing Date
CN202311194075.3A Active CN117210987B (en) 2023-09-15 2023-09-15 Composite yarn based on acetate filaments and collagen nylon filaments and preparation method thereof
CN202410803354.3A Active CN118704130B (en) 2023-09-15 2023-09-15 A high-performance composite yarn based on acetate filament and preparation method thereof

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CN202311194075.3A Active CN117210987B (en) 2023-09-15 2023-09-15 Composite yarn based on acetate filaments and collagen nylon filaments and preparation method thereof

Country Status (1)

Country Link
CN (2) CN117210987B (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102839470A (en) * 2012-09-24 2012-12-26 海安县中山合成纤维有限公司 Blended yarn of chinlon, acrylic fiber and cellulose acetate
CN103132206A (en) * 2011-11-29 2013-06-05 东丽纤维研究所（中国）有限公司 Composite yarn textile capable of absorbing moisture and sensing cold and application thereof

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB767889A (en) * 1954-03-05 1957-02-06 Bemberg Ag A method for the production of yarn or thread
CN206418258U (en) * 2016-12-29 2017-08-18 上海题桥纺织染纱有限公司 A kind of acetate fiber Silk is knitted fabric
CN110904527A (en) * 2019-12-26 2020-03-24 福建锦江科技有限公司 Antibacterial collagen chinlon 6 filament and application thereof
KR20220067044A (en) * 2020-11-17 2022-05-24 한국섬유개발연구원 Silk-like fabric with acetate composite yarn
CN217671543U (en) * 2022-03-26 2022-10-28 嘉兴汇德丰纺织有限公司 Ultrathin high-drapability rayon fabric
CN115747999A (en) * 2022-11-18 2023-03-07 福建永荣锦江股份有限公司 Collagen-modified nylon 6 air textured yarn and preparation method thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103132206A (en) * 2011-11-29 2013-06-05 东丽纤维研究所（中国）有限公司 Composite yarn textile capable of absorbing moisture and sensing cold and application thereof
CN102839470A (en) * 2012-09-24 2012-12-26 海安县中山合成纤维有限公司 Blended yarn of chinlon, acrylic fiber and cellulose acetate

Also Published As

Publication number Publication date
CN118704130A (en) 2024-09-27
CN117210987A (en) 2023-12-12
CN117210987B (en) 2024-06-18

Similar Documents

Publication Publication Date Title
US6852413B2 (en) Lyocell multi-filament for tire cord and method of producing the same
CN109023564B (en) Preparation method of polylactic acid colored short fibers
CN109234820B (en) Preparation method of polylactic acid short fibers
Schurz et al. Investigations on the structure of regenerated cellulose fibers; Herrn Professor Janeschitz‐Kriegl zum 70. Geburtstag mit den besten Wünschen gewidmet
EP3202959A1 (en) Lyocell crimped fiber
CN110820079A (en) Preparation method of nano-doped polyamide parallel elastic composite fiber
CN101748514B (en) Moisture-absorbing antistatic dyeable polypropylene fibre and preparation method thereof
EP3760774B1 (en) Preparation method for long continuous electrospun polyacrylonitrile nanofiber yarn, and application thereof
CN101139748B (en) Fine denier or ultra-fine denier nylon fibre and production method thereof
CN110079903B (en) Preparation method and application of continuous long-line high-count yarn of electrospun nylon nanofiber
CN118704130B (en) A high-performance composite yarn based on acetate filament and preparation method thereof
Ibrahim et al. Spinning techniques of poly (vinyl alcohol) fibers for various textile applications
CN112323181B (en) Preparation method of high-performance chitosan fiber
EP3924547B1 (en) Spun-dyed fiber and method for its manufacture
TWI725653B (en) Process for liquid removal from cellulose filaments yarns or fibers
CN104562250A (en) Micro-porous fine denier nylon 6 three-difference fiber and preparation method and application thereof
JP2024095629A (en) Manufacturing method of cellulose filament yarn, and cellulose filament yarn
CN1418990A (en) Ultralow denier fibre for viscose chemical fibre
WO2002048435A1 (en) Method for producing continuous moulded bodies consisting of cellulose
CN115559014A (en) Preparation method of antistatic wool-like polyester filament yarn
CN119753863B (en) Preparation method of large-diameter Lyocell fiber
CN115976678B (en) Multifunctional graphene polyamide fine denier and preparation method thereof
CN103387802A (en) Flame-retardant acetate fiber tape and preparation method of acetate fiber
CN101122054B (en) A kind of fine denier or superfine denier nylon fiber and its production method
CA2511030C (en) Lyocell multi-filament for tire cord and method of producing the same

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant