CN113862852B - Polyester/cotton/sea island fiber blended core-spun yarn and production method thereof - Google Patents

Polyester/cotton/sea island fiber blended core-spun yarn and production method thereof Download PDF

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CN113862852B
CN113862852B CN202111247989.2A CN202111247989A CN113862852B CN 113862852 B CN113862852 B CN 113862852B CN 202111247989 A CN202111247989 A CN 202111247989A CN 113862852 B CN113862852 B CN 113862852B
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cotton
sea
island
nano
polyester
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CN113862852A (en
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徐良平
宫怀瑞
张红艳
何留根
张磊
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Luolai Lifestyle Technology Co Ltd
Shanghai Luolai Lifestyle Technology Co Ltd
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Luolai Lifestyle Technology Co Ltd
Shanghai Luolai Lifestyle Technology Co Ltd
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    • DTEXTILES; PAPER
    • D02YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02GCRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/02Yarns or threads characterised by the material or by the materials from which they are made
    • D02G3/04Blended or other yarns or threads containing components made from different materials
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01FCHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F1/00General methods for the manufacture of artificial filaments or the like
    • D01F1/02Addition of substances to the spinning solution or to the melt
    • D01F1/10Other agents for modifying properties
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01FCHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F8/00Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D01F8/04Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
    • D01F8/14Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyester as constituent
    • DTEXTILES; PAPER
    • D02YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02GCRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/36Cored or coated yarns or threads
    • DTEXTILES; PAPER
    • D02YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02GCRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/44Yarns or threads characterised by the purpose for which they are designed
    • DTEXTILES; PAPER
    • D02YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02GCRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/44Yarns or threads characterised by the purpose for which they are designed
    • D02G3/449Yarns or threads with antibacterial properties
    • DTEXTILES; PAPER
    • D10INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10BINDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2201/00Cellulose-based fibres, e.g. vegetable fibres
    • D10B2201/01Natural vegetable fibres
    • D10B2201/02Cotton
    • DTEXTILES; PAPER
    • D10INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10BINDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2331/00Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/04Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]
    • DTEXTILES; PAPER
    • D10INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10BINDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2401/00Physical properties
    • D10B2401/22Physical properties protective against sunlight or UV radiation
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50Manufacturing or production processes characterised by the final manufactured product
    • Y02P70/62Manufacturing 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

Abstract

The invention belongs to the technical field of household textiles, and particularly discloses a polyester/cotton/sea-island fiber blended core-spun yarn which comprises a core yarn and a coating yarn, wherein the core yarn is a polyester filament yarn, the coating yarn is a cotton/sea-island fiber blended yarn, in the cotton/sea-island fiber blended yarn, the mass of a sea-island fiber is 20-50% of that of the cotton fiber, and the preparation raw materials of the sea-island fiber comprise functional nanoparticles and nano shell powder. The production method of the core-spun yarn comprises the following steps: and then the cotton/sea-island fiber blended roving and the polyester filament yarn are subjected to a spinning process in a core-spun mode to obtain the core-spun yarn. The fabric woven by the core-spun yarn has the characteristics of polyester, cotton and sea-island fibers, has good moisture absorption, air permeability, wrinkle resistance, antibacterial, ultraviolet-proof, anion-releasing and other functions, and is soft in hand feeling and comfortable to use.

Description

Polyester/cotton/sea island fiber blended core-spun yarn and production method thereof
Technical Field
The invention relates to the technical field of household textiles, in particular to a polyester/cotton/sea island fiber blended core-spun yarn and a production method thereof.
Background
Cotton fiber is a fiber coated on seeds of plants of the malvaceae family, and is one of the very important raw materials for the textile industry. The cotton fiber product has good moisture absorption and air permeability, and is soft and warm. However, the antibacterial function of cotton fiber products is poor, and bacteria or fungi can decompose cotton fibers into glucose in a wet state, so that the cotton fiber products become mildewed and go bad. Moreover, the crease resistance of the cotton fiber product is poor, and wrinkles are easy to appear, so that the sense is influenced.
With the increasing requirements of people on textiles, for cotton fiber products, people want to have good moisture absorption and air permeability, good wrinkle resistance, and the functions of resisting bacteria, preventing mites, preventing sunburn, releasing negative ions and the like. Therefore, how to increase the functions of cotton fiber products has become a hot research and development. At present, there is a method of imparting some other functions to cotton fibers by modifying the cotton fibers, for example, modifying the cotton fibers with nanoparticles having antibacterial functions such as nano silica, nano titania, and nano zinc oxide. However, the affinity of these nanoparticles to cotton fibers is weak, and chemical reagents are usually used in the process of modifying cotton fibers, the modification treatment process is complex, the cotton fiber products after the modification treatment have the problems of low fastness to washing, the performances of the functions such as antibiosis and negative ion release are gradually reduced, and the chemical reagents used in the process of modifying cotton fibers may also affect the hand feeling, hygroscopicity and air permeability of the cotton fiber products. Therefore, there is a need for a method for producing a cotton fiber product with good antibacterial, anti-mite, sunscreen, and anion releasing functions without affecting the performance of the cotton fiber product.
Disclosure of Invention
In view of the above-mentioned disadvantages of the prior art, the present invention is directed to a polyester/cotton/sea island fiber blended core spun yarn and a method for producing the same, which is used to solve the problem of the prior art that other properties of a cotton fiber product are adversely affected when the functions of the cotton fiber product are increased by using cotton fiber modification.
In order to achieve the above and other related objects, the invention provides a polyester/cotton/sea-island fiber blended core-spun yarn, which comprises a core yarn and a coating yarn, wherein the core yarn is a polyester filament, the coating yarn is a cotton/sea-island fiber blended yarn, in the cotton/sea-island fiber blended yarn, the mass of the sea-island fiber is 20-50% of that of the cotton fiber, and the preparation raw material of the sea-island fiber comprises functional nanoparticles and nano shell powder.
Optionally, the mass of the sea-island fiber is 30-35% of the mass of the cotton fiber.
Optionally, the method of preparing the sea-island fiber comprises the steps of: (1) preparing the island phase functional master batch: mixing the island component, the functional nanoparticles and the nano shell powder, and then carrying out melt blending in an ultrasonic field to prepare island phase functional master batches; (2) preparation of composite fiber: mixing the island phase functional master batch in the step (1) with the sea component, and then carrying out melt blending spinning to obtain a composite fiber; (3) fiber post-treatment: and (3) oiling, stretching, curling and drying and shaping the composite fiber obtained in the step (2) to obtain a finished fiber.
Optionally, in the step (1), the ultrasonic power is 150 to 170W.
Optionally, in the step (1) and the step (2), the island component is selected from one of polyester, polyamide and polyacrylonitrile, and the sea component is selected from one of water-soluble polyester, polyethylene, polypropylene, polyvinyl alcohol, polystyrene and acrylate copolymer.
Optionally, in step (1), the functional nanoparticles are selected from one or more of nano titanium dioxide, nano zinc oxide, nano kaolin, nano zirconium oxide, nano anion powder, nano aluminum oxide, nano silicon oxide, nano zirconium silver phosphate, nano silver metal powder, nano copper metal powder and high temperature resistant nano microcapsule.
Optionally, in the step (1), the particle diameters of the functional nanoparticles and the nano shell powder are 20-100 nm.
Optionally, in the step (1), the mass of the functional nanoparticles is 8-10% of the mass of the island component, and the mass of the nano shell powder is 3-5% of the mass of the island component.
Optionally, in the step (2), the mass ratio of the island phase functional master batch to the sea component is 3.
Alternatively, in step (1), the nano-sized biological tooth powder is mixed while the island component, the functional nanoparticles and the nano-shell powder are mixed.
Optionally, the mass of the functional nanoparticles is 8-10% of the mass of the island component, and the sum of the mass of the nanometer shell powder and the mass of the nanometer biological tooth powder is 3-5% of the mass of the island component.
Optionally, the mass ratio of the nano shell powder to the nano biological tooth powder is 1-3.
Optionally, the nanoscale biological tooth powder has a particle size of 20 to 100nm.
The invention also provides a production method of the polyester/cotton/sea island fiber blended core-spun yarn, which comprises the following steps:
s1, cotton carding: carding and removing impurities from the cotton roll mixed by the sea island fibers and the cotton fibers to prepare raw strips;
s2, drawing: combining and drafting the raw slivers to prepare cooked slivers;
s3, roving: drafting and twisting the drawn sliver to prepare roving;
s4, spinning: after the roving is drafted and twisted, polyester filament yarns are added from the front upper roller, and spun into spun yarns.
Optionally, the production method of the polyester/cotton/sea island fiber blended core-spun yarn further comprises the following steps:
s5, spooling: and removing yarn defects of the spun yarn through an electronic yarn cleaner, connecting the spun yarn with a cop, and manufacturing the spun yarn into a cone yarn.
Optionally, in step S3, the ingot speed is 750 to 820r/min, the twist factor is 95 to 100, the draft multiple in the back zone is 1.1 to 1.5, and the total mechanical draft multiple is 7 to 8.
Alternatively, in step S4, the yarn twist factor is 320 to 340, the back draft multiple is 3.2 to 3.8, and the total mechanical draft multiple is 45 to 47.
The invention also provides a fabric woven by the polyester/cotton/sea island fiber blended core-spun yarn.
As mentioned above, the polyester/cotton/sea island fiber blended core-spun yarn and the production method thereof have the following beneficial effects:
1) In the invention, the polyester filament yarn is adopted as the core yarn, and the cotton/sea-island fiber blended yarn is adopted as the cladding yarn. The polyester filament yarn has good toughness and strength, and the polyester fabric has good wrinkle resistance; the cotton fiber has good hygroscopicity and air permeability; moreover, the sea-island fiber of the present invention is prepared by including the functional nanoparticles in the raw material, so the sea-island fiber has the corresponding functionality, for example, when the functional nanoparticles are nano zinc oxide, the sea-island fiber will have the functions of antibiosis and shielding ultraviolet; when the functional nano-particle is nano-anion powder, the sea-island fiber has the function of releasing anions. Therefore, the core-spun yarn has the performances of polyester filament, cotton fiber and sea-island fiber, and the fabric woven by the core-spun yarn has good moisture absorption, air permeability, wrinkle resistance, antibacterial, ultraviolet-proof, negative ion-releasing and other functions. The invention avoids modifying the cotton fiber, thereby avoiding the adverse effects on the performances of the cotton fiber product, such as hygroscopicity and the like.
2) According to the invention, the preparation raw material of the sea-island fiber comprises the nanometer shell powder, and the nanometer shell powder is a natural organic-inorganic hybrid material, has a unique crossed layered structure and has fracture toughness and strength which are incomparable with common calcium carbonate, so that the sea-island fiber mixed with the nanometer shell powder improves the mechanical strength of the sea-island fiber compared with the common sea-island fiber (the common sea-island fiber is the sea-island fiber containing functional nanoparticles).
3) The production method of the core-spun yarn has simple process and low production cost.
4) The fabric woven by the core-spun yarn has soft hand feeling, comfortable use, good air permeability and moisture absorption, and also has the functions of wrinkle resistance, antibiosis, ultraviolet resistance, negative ion release and the like. Meanwhile, after the fabric is subjected to post-treatment and sanding, the fabric with fluff on the surface can be obtained, and the fabric is particularly suitable for cutting and preparing household textiles such as four bedding articles in autumn and winter.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention.
The invention provides a production method of polyester/cotton/sea island fiber blended core-spun yarn, which comprises the following steps:
s1, preparation of sea-island fiber
The preparation method of the sea-island fiber comprises the following steps:
(1) Preparing island phase functional master batches: mixing the island component, the functional nanoparticles and the nano shell powder, and then carrying out melt blending by a double-screw extruder, wherein the melt blending temperature reaches 270-275 ℃, so as to prepare the island phase functional master batch.
Wherein the melt blending process is carried out in an ultrasonic field, and the ultrasonic power is 150-170W. The island component is selected from one of polyester, polyamide and polyacrylonitrile. The mass of the functional nanoparticles is 8-10% of the mass of the island component, the mass of the nano shell powder is 3-5% of the mass of the island component, and the particle diameters of the functional nanoparticles and the nano shell powder are 20-100 nm. The functional nanoparticles are selected from one or more of nano titanium dioxide, nano zinc oxide, nano kaolin, nano zirconia, nano anion powder, nano alumina, nano silicon oxide, nano zirconium silver phosphate, nano metal silver powder, nano metal copper powder and high-temperature-resistant nano microcapsules.
(2) Preparing the composite fiber: and (2) mixing the island phase functional master batch obtained in the step (1) with the sea component, and then carrying out melt blending spinning through a double-screw extruder to obtain the composite fiber.
Wherein the sea component is selected from one of water-soluble polyester, polyethylene, polypropylene, polyvinyl alcohol, polystyrene and acrylate copolymer, the mass ratio of the island phase functional master batch to the sea component is 3-2.5, and the melt blending temperature is 272-285 ℃.
(3) Fiber post-treatment: and (3) oiling, stretching, curling and drying and shaping the composite fiber obtained in the step (2) to obtain the finished fiber.
In another embodiment of the present invention, in the step (1), when the island component, the functional nanoparticles and the nano shell powder are mixed, the nano biological tooth powder is mixed, the mass of the functional nanoparticles is 8 to 10% of the mass of the island component, the sum of the mass of the nano shell powder and the nano biological tooth powder is 3 to 5% of the mass of the island component, and the mass ratio of the nano shell powder to the nano biological tooth powder is 1 to 3. Wherein the nanometer biological tooth powder originates from mouse incisor teeth, the mouse incisor teeth are crushed and ground into powder, and the particle size of the nanometer biological tooth powder is 20-100 nm.
S2, carding cotton
Carding and removing impurities from the cotton roll mixed by the sea island fiber and the cotton fiber to prepare raw strips. Wherein the mass of the sea-island fiber is 20-50% of the mass of the cotton fiber, preferably, the mass of the sea-island fiber is 30-35% of the mass of the cotton fiber.
S3, drawing
Through two drawing processes: and (3) firstly, combining and drafting the eight raw slivers in the step (S2) to prepare half-cooked slivers, and then combining and drafting the eight half-cooked slivers to prepare mature slivers.
S4, roving
And (4) drafting and twisting the drawn slivers in the step S3 to prepare rough yarns. Wherein the ingot speed is 750-820 r/min, the twist coefficient is 95-100, the back zone draft multiple is 1.1-1.5, and the mechanical total draft multiple is 7-8.
S5, spun yarn
And (5) after drafting and twisting the rough yarn in the step (S4), adding polyester filament yarn from a front upper roller, and spinning the yarn into spun yarn. Wherein, the ingot speed is 6000 to 8000r/min, the twist coefficient is 320 to 340, the back zone draft multiple is 3.2 to 3.8, and the mechanical total draft multiple is 45 to 47.
S6, spooling
And (5) removing yarn defects and connecting cop of the spun yarn in the step (S5) through an electronic yarn cleaner to prepare a cone yarn.
The invention also provides the polyester/cotton/sea island fiber blended core-spun yarn obtained by the production method.
The invention also provides a fabric woven by the polyester/cotton/sea island fiber blended core-spun yarn.
The present invention will be described in detail with reference to the following specific examples. It should also be understood that the following examples are illustrative only and are not to be construed as limiting the scope of the invention, and that numerous insubstantial modifications and adaptations of the invention described above will occur to those skilled in the art. The specific process parameters and the like of the following examples are also only one example of suitable ranges, i.e., those skilled in the art can select the appropriate ranges through the description herein, and are not limited to the specific values exemplified below.
Example 1
A production method of polyester/cotton/sea island fiber blended core-spun yarn comprises the following steps:
s1, preparation of sea-island fiber
The preparation method of the sea-island fiber comprises the following steps:
(1) Preparing the island phase functional master batch: drying the PET master batch (island component) at 120 ℃ until the water content of the PET master batch is below 0.4%, and simultaneously drying the nano silicon oxide (functional nanoparticles with the particle size of 20-100 nm) and the nano shell powder (particle size of 20-100 nm) at 80 ℃ for 2h. And then mixing the nano silicon oxide, the nano shell powder and the PET master batch, then carrying out mixing extrusion by a double-screw extruder (the melt blending temperature of the double-screw extruder reaches 270 ℃), and cooling and granulating to obtain the island phase functional master batch. Wherein the double-screw extruder is positioned in an ultrasonic field, and the ultrasonic power of the ultrasonic field is 150W. Wherein the mass of the nano silicon oxide is 8 percent of that of the PET master batch, and the mass of the nano shell powder is 3 percent of that of the PET master batch.
(2) Preparing the composite fiber: and (2) drying the water-soluble polyester (sea component) at 120 ℃ for 5h, and then carrying out melt blending spinning on the island phase functional master batch in the step (1) and the water-soluble polyester on a double-screw extruder according to a mass ratio of 3.
(3) Fiber post-treatment: and (3) oiling, stretching, curling and drying and shaping the composite fiber obtained in the step (2) to obtain a finished fiber. The finished fiber has antibacterial function.
S2, cotton carding
Mixing the sea island fiber and the cotton fiber, opening and removing impurities to prepare a cotton roll, and carding and removing impurities to prepare raw strips. Wherein the mass of the sea-island fiber is 20 percent of that of the cotton fiber.
S3, drawing
Through two drawing processes: and (3) firstly, combining and drafting the eight raw slivers in the step (S2) to prepare half-cooked slivers, and then combining and drafting the eight half-cooked slivers to prepare mature slivers.
S4, roving
And (4) drafting and twisting the drawn slivers in the step (S3) to prepare rough yarns. Wherein the ingot speed is 800r/min, the twist coefficient is 96, the back zone draft multiple is 1.26, and the mechanical total traction multiple is 7.55.
S5, spun yarn
And (5) after the roving in the step (S4) is drafted and twisted, adding polyester filament yarns from a front upper roller, and spinning into spun yarns. Wherein the ingot speed is 6000r/min, the twist coefficient is 330, the back zone draft multiple is 3.66, and the mechanical total draft multiple is 46.19.
S6, spooling
And (5) removing yarn defects and connecting cop of the spun yarn in the step (S5) through an electronic yarn cleaner to prepare a cone yarn. Thus obtaining the terylene/cotton/sea island fiber blended core-spun yarn.
In the embodiment, from step S2 to step S6, the related plucker, opener, carding machine, drawing frame, roving frame, spinning frame, bobbin winder and the like are all devices in the prior art.
The breaking strength of the polyester/cotton/sea island fiber blended core spun yarn in this example was measured in accordance with "measurement of single yarn breaking strength and elongation at break (CRE method)" of the textile package yarn of GB/T3916-2013, and the measured result was 462.72cN.
Example 2
The present embodiment is different from embodiment 1 in that: in this example, in step S2, the mass of the sea-island fiber is 30% of the mass of the cotton fiber. The core spun yarn obtained in this example had a breaking strength of 472.53cN.
Example 3
The present embodiment is different from embodiment 1 in that: in step S2, the mass of the sea-island fiber is 35% of the mass of the cotton fiber. The core spun yarn obtained in this example had a breaking strength of 476.86cN.
Example 4
The present embodiment is different from embodiment 1 in that: in this example, in step S2, the mass of the sea-island fiber is 50% of the mass of the cotton fiber. The core spun yarn obtained in this example had a breaking tenacity of 491.65cN.
Example 5
The present embodiment is different from embodiment 1 in that: in step S1, the ultrasonic power of the ultrasonic field is 170W, the mass of the nano silica is 10% of the mass of the PET masterbatch, and the mass of the nano shell powder is 5% of the mass of the PET masterbatch. The core spun yarn obtained in this example had a breaking tenacity of 468.14cN.
Example 6
This embodiment is different from embodiment 5 in that: in this example, in step S1, when the island component, the functional nanoparticles, and the nano shell powder are mixed, the nano-scale biological tooth powder (having a particle size of 20 to 100 nm) is mixed, and the nano-scale biological tooth powder in this example is derived from mouse incisors. The sum of the mass of the nano shell powder and the nano biological tooth powder is 5% of the mass of the PET master batch, and the mass ratio of the nano shell powder to the nano biological tooth powder is 1. The core spun yarn obtained in this example had a breaking strength of 471.02cN.
Example 7
This embodiment is different from embodiment 5 in that: this example replaces the nano shell powder with the nano-sized biological tooth powder in step S1. The core spun yarn obtained in this example had a breaking strength of 467.81cN.
The polyester/cotton/sea island fiber blended core spun yarns in the examples 1 to 7 are woven into a fabric, and post-treatment is carried out, wherein the post-treatment method comprises the following steps: taking a sodium hydroxide solution with the concentration of 10g/L as a treatment solution, putting the fabric into the solution at 45 ℃, heating to 85 ℃, keeping the temperature for 15min, heating to 110 ℃, and keeping the temperature for 35min; then, washing the fabric by using hot water at the temperature of 75 ℃ for 20min, and adding glacial acetic acid for neutralization to enable the pH value of the washing liquid to reach 6-7; then, the mixture was dried at 105 ℃ to a constant weight.
Subsequently, evaluation of antibacterial properties of textiles according to "GB/T20994.3-2008, section 3: the oscillation method is used for testing the antibacterial property of the post-treated fabric, a washing method of a color fastness to washing tester is adopted, the antibacterial rate of the fabric after 20 times of washing is tested, and the result is shown in table 1.
TABLE 1 tables of rupture Strength and bacteriostatic Properties of examples
Figure BDA0003321748210000081
( Note: the bacteriostatic rate of the antibacterial agent on staphylococcus aureus and escherichia coli is more than or equal to 70 percent, or the bacteriostatic rate of the antibacterial agent on candida albicans is more than or equal to 60 percent, and the sample has antibacterial effect )
As can be seen from table 1, examples 1 to 7 all had an antibacterial effect, that is, fabrics woven from the polyester/cotton/sea island fiber blended core spun yarn of the present invention had an unusual antibacterial function. The breaking strength of comparative examples 1 to 7 was found to increase as the mass of the sea-island fiber increases, but considering that too much sea-island fiber is added, the cotton fiber ratio is too small and the moisture absorption and air permeability of the fabric are reduced, the present invention limits the amount of the sea-island fiber to 20 to 50% of the mass of the cotton fiber.
Further, in comparison with the breaking strengths of examples 5 to 7, it is not difficult to find that the breaking strength of example 6 is higher than the breaking strength of example 5 by 2.88cN and the breaking strength of example 6 is higher than the breaking strength of example 7 by 3.21cN, which indicates that the nano shell powder and the nano-sized biological tooth powder are used in combination, and the former synergistically enhances the mechanical strength of the sea-island fiber, compared to the case where the nano shell powder and the nano-sized biological tooth powder are used alone.
In conclusion, the fabric woven by the polyester/cotton/sea island fiber blended core-spun yarn has an unusual antibacterial function, and the cotton fiber and the polyester filament are not modified, so the fabric has the characteristics of the cotton fiber and the polyester filament. That is, the fabric woven by the polyester/cotton/sea-island fiber blended core-spun yarn has good hygroscopicity and air permeability, and also has wrinkle resistance and corresponding functions brought by the sea-island fiber, such as antibacterial, ultraviolet resistance, negative ion release and the like.
Example 8
The present embodiment is different from embodiment 1 in that: the fabric obtained in example 1 was subjected to sanding treatment to obtain a fabric having a nap on the surface. The fabric has comfortable hand feeling, good hygroscopicity and air permeability, crease resistance and antibiosis, and is particularly suitable for cutting and preparing household textiles such as four bedding articles in autumn and winter.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims (13)

1. The polyester/cotton/sea-island fiber blended core-spun yarn consists of a core yarn and a covering yarn, and is characterized in that: the core yarn is a polyester filament yarn, the coating yarn is a cotton/sea-island fiber blended yarn, in the cotton/sea-island fiber blended yarn, the mass of the sea-island fiber is 20-50% of the mass of the cotton fiber, the preparation raw material of the sea-island fiber comprises functional nanoparticles, nano shell powder and nano-scale biological tooth powder, the mass of the functional nanoparticles is 8-10% of the mass of the island component, the sum of the mass of the nano shell powder and the nano-scale biological tooth powder is 5% of the mass of the island component, and the mass ratio of the nano shell powder to the nano-scale biological tooth powder is 1;
the preparation method of the sea-island fiber comprises the following steps:
(1) Preparing the island phase functional master batch: mixing the island component, the functional nanoparticles, the nano shell powder and the nano biological tooth powder, and then carrying out melt blending in an ultrasonic field to prepare island phase functional master batches;
(2) Preparing the composite fiber: mixing the island phase functional master batch in the step (1) with the sea component, and then carrying out melt blending spinning to obtain a composite fiber;
(3) Fiber post-treatment: and (3) oiling, stretching, curling and drying and shaping the composite fiber obtained in the step (2) to obtain the finished fiber.
2. The polyester/cotton/sea island fiber blended core spun yarn according to claim 1, wherein: the mass of the sea-island fiber is 30-35% of that of the cotton fiber.
3. The polyester/cotton/sea island fiber blended core spun yarn of claim 1, wherein: in the step (1), the ultrasonic power is 150 to 170W.
4. The polyester/cotton/sea island fiber blended core spun yarn of claim 1, wherein: in the step (1) and the step (2), the island component is selected from one of polyester, polyamide and polyacrylonitrile, and the sea component is selected from one of water-soluble polyester, polyethylene, polypropylene, polyvinyl alcohol, polystyrene and acrylate copolymer.
5. The polyester/cotton/sea island fiber blended core spun yarn of claim 1, wherein: in the step (1), the functional nanoparticles are selected from one or more of nano titanium dioxide, nano zinc oxide, nano kaolin, nano zirconium oxide, nano anion powder, nano aluminum oxide, nano silicon oxide, nano zirconium silver phosphate, nano metal silver powder, nano metal copper powder and high-temperature-resistant nano microcapsules.
6. The polyester/cotton/sea island fiber blended core spun yarn of claim 1, wherein: in the step (1), the particle size of the functional nanoparticles and the nano shell powder is 20-100 nm.
7. The polyester/cotton/sea island fiber blended core spun yarn according to claim 1, wherein: in the step (1), the mass of the functional nanoparticles is 8-10% of the mass of the island component, and the mass of the shell powder is 3-5% of the mass of the island component.
8. The polyester/cotton/sea island fiber blended core spun yarn of claim 1, wherein: in the step (2), the mass ratio of the island phase functional master batch to the sea component is 3.
9. The polyester/cotton/sea island fiber blended core spun yarn of claim 1, wherein: the particle size of the nano biological tooth powder is 20-100 nm.
10. The method of producing a polyester/cotton/sea island fiber blended core spun yarn according to any one of claims 1 to 9, wherein: the method comprises the following steps:
s1, cotton carding: carding and removing impurities from the cotton roll mixed by the sea island fibers and the cotton fibers to prepare raw strips;
s2, drawing: combining and drafting the raw slivers to prepare cooked slivers;
s3, roving: drafting and twisting the drawn sliver to prepare roving;
s4, spinning: after the roving is drafted and twisted, polyester filament yarns are added from the front upper roller, and spun into spun yarns.
11. The method for producing polyester/cotton/sea island fiber blended core spun yarn according to claim 10, characterized in that: in step S3, the ingot speed is 750-820 r/min, the twist coefficient is 95-100, the back zone draft multiple is 1.1-1.5, and the mechanical total draft multiple is 7-8.
12. The method for producing polyester/cotton/sea island fiber blended core spun yarn according to claim 10, characterized in that: in step S4, the ingot speed is 6000 to 8000r/min, the twist coefficient is 320 to 340, the back zone draft multiple is 3.2 to 3.8, and the mechanical total draft multiple is 45 to 47.
13. A fabric woven from the polyester/cotton/sea island fiber blended core spun yarn of any one of claims 1 to 9 and/or the polyester/cotton/sea island fiber blended core spun yarn prepared by the production method of any one of claims 10 to 12.
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