CN111349995A - Antibacterial crease-resistant fabric for business suit and preparation process thereof - Google Patents

Antibacterial crease-resistant fabric for business suit and preparation process thereof Download PDF

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CN111349995A
CN111349995A CN202010203587.1A CN202010203587A CN111349995A CN 111349995 A CN111349995 A CN 111349995A CN 202010203587 A CN202010203587 A CN 202010203587A CN 111349995 A CN111349995 A CN 111349995A
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antibacterial
fabric
fiber
crease
modified
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林绍辉
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Anhui Yishang Textile Technology Co ltd
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Anhui Yishang Textile Technology Co ltd
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    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D13/00—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft
    • D03D13/008—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft characterised by weave density or surface weight
    • 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
    • D01F1/103—Agents inhibiting growth of microorganisms
    • 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
    • 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
    • D01F6/92—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 polyesters
    • 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
    • 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
    • D02G3/12—Threads containing metallic filaments or strips
    • 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
    • D02G3/44—Yarns or threads characterised by the purpose for which they are designed
    • D02G3/441—Yarns or threads with antistatic, conductive or radiation-shielding properties
    • 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
    • D02G3/44—Yarns or threads characterised by the purpose for which they are designed
    • D02G3/449—Yarns or threads with antibacterial properties
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • 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
    • D10B2101/00—Inorganic fibres
    • D10B2101/20—Metallic fibres
    • 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
    • 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
    • D10B2211/00—Protein-based fibres, e.g. animal fibres
    • D10B2211/01—Natural animal fibres, e.g. keratin fibres
    • D10B2211/02—Wool
    • 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
    • D10B2331/04—Fibres 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]
    • 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
    • D10B2401/22—Physical properties protective against sunlight or UV radiation

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Woven Fabrics (AREA)
  • Artificial Filaments (AREA)

Abstract

The invention discloses an antibacterial crease-resistant fabric for western-style clothes and a preparation process thereof, wherein the fabric is woven by warps and wefts, the warps are blended yarns obtained by wool/antibacterial polyester fibers according to a blending ratio of 50/50, and the wefts are blended yarns obtained by modified bamboo fibers/stainless steel fibers according to a blending ratio of 60/40; the warp and weft yarns are woven by drafting in a forward drawing method. The warp of the fabric is formed by blending the wool/antibacterial polyester fiber, and the antibacterial polyester fiber is made of the polyester fiber and the composite antibacterial body, so that the fabric has high antibacterial performance, high ultraviolet resistance, good crease resistance and mechanical strength; the weft yarn is formed by blending modified bamboo fiber/stainless steel fiber, the bamboo fiber is subjected to pyromellitic acid crosslinking modification, the crease resistance and the mechanical strength of the bamboo fiber can be remarkably improved, the washing resistance is high, the prepared fabric has good antibacterial property and crease resistance, the stiffness is high, and the fabric is suitable for preparing western-style clothes.

Description

Antibacterial crease-resistant fabric for business suit and preparation process thereof
Technical Field
The invention belongs to the field of fabrics, and particularly relates to an antibacterial crease-resistant fabric for western-style clothes and a preparation process thereof.
Background
With the improvement of living standard of people, the requirements of people on clothes are higher and higher, consumers develop from the first pursuit of heat preservation to the direction of paying attention to comfort, beauty, health and the like, and functional textiles are produced at the same time. The traditional worsted formal garment fabric has rich, elastic, stiff and comfortable style and good wearing comfort performance. However, in the prior art, although the crease resistance of the traditional wool worsted formal dress fabric is better than that of cotton and linen, the fabric still easily wrinkles when worn in a humid environment. In order to improve the crease resistance of the traditional woolen spinning formal wear fabric, a crease-resistant auxiliary agent is required to be used for finishing in the dyeing and finishing process, and the processing mode has the advantages of high energy consumption, low efficiency, high cost, non-lasting performance and non-washing resistance.
Chinese invention patent with the patent number of N201810090970.3 discloses a suit fabric processing technology, which comprises S1 and pretreatment before dyeing; s2, dyeing; s3, post finishing; s1, pretreatment before dyeing comprises S11 and refining: A. placing the grey cloth in a first rolling groove and cleaning the grey cloth by using weak base; B. placing the grey cloth in a second rolling groove and cleaning the grey cloth by using weak alkali; s12, alkali washing: A. placing the grey cloth in alkali liquor for immersion washing; B. treating the grey cloth in soap solution at 75 ℃; s2, dyeing treatment including S21, dip dyeing: controlling the initial dyeing temperature of the disperse dye at 30 ℃, controlling the heating rate at 0.6 ℃/min, and keeping the temperature at 60-65 ℃ for 10 minutes; then continuously heating to 80-120 ℃ at the same speed; s22, reduction and cleaning: the water temperature was controlled at 50 ℃. The process can relax the tissue on the surface of the fabric, so that the bending and shearing properties of the fabric are obviously changed, the taught drapability is obtained, the wrinkle resistance of the fabric is increased, and the product quality is improved. Although the crease resistance of the suit fabric can be improved through the dyeing and finishing process, the process has the defect of non-lasting crease resistance due to the fact that the suit fabric is finished in the later period, and is still deficient in the aspect of antibacterial function, so that the suit fabric is difficult to popularize and apply.
Disclosure of Invention
The invention aims to provide an antibacterial crease-resistant fabric for western-style clothes and a preparation process thereof, wherein warp yarns of the fabric are formed by blending wool/antibacterial polyester fibers, the antibacterial polyester fibers are made of polyester fibers and composite antibacterial bodies, and the antibacterial polyester fibers not only have higher antibacterial performance, but also have high ultraviolet resistance, can keep the rigidity of the polyester fibers and have good crease resistance and mechanical strength; the weft yarn is formed by blending modified bamboo fiber/stainless steel fiber, the bamboo fiber is subjected to pyromellitic acid crosslinking modification, the crease resistance and the mechanical strength of the bamboo fiber can be remarkably improved, the bamboo fiber has strong washing resistance, and the excellent property of the stainless steel fiber can improve the crease resistance and the stiffness of the fabric; the prepared fabric has good antibacterial property and wrinkle resistance, has excellent stiffness and is suitable for preparing western-style clothes.
The purpose of the invention can be realized by the following technical scheme:
an antibacterial crease-resistant fabric for western-style clothes is woven by warps and wefts, wherein the warps are blended yarns obtained by wool/antibacterial polyester fibers according to a blending ratio of 50/50, and the wefts are blended yarns obtained by modified bamboo fibers/stainless steel fibers according to a blending ratio of 60/40;
the warp and weft yarn density is 16.7tex, the fabric warp density is 150 pieces/10 cm, the weft density is 160 pieces/10 cm, and the fabric is woven on a loom by drafting in a straight-through method.
Further, the antibacterial polyester fiber is prepared by the following method:
(1) dissolving epoxy propionic acid in deionized water to prepare an epoxy propionic acid water solution with the mass fraction of 0.25%; according to the feed-liquid ratio of 1 g: 80mL of nano TiO2Adding into epoxy propionic acid water solution, refluxing at 40 deg.C for 12 hr, washing with deionized water for several times to remove unreacted epoxy propionic acid, and drying in vacuum oven to obtain modified nanometer TiO2Particles;
(2) according to the feed-liquid ratio of 1 g: 10mL of the modified nano TiO2Dispersing the particles into methanol, adding polyethyleneimine according to the mass ratio of 4:1, reacting at 3 ℃ for 7h, and removing ions after the reaction is finishedWashing with water and ethanol for 6-8 times, and vacuum drying to obtain polymer modified nanoparticles;
(3) weighing 0.1g of bromopropylpyrrole, dissolving the bromopropylpyrrole in 50mL of methanol, adding 0.5g of polymer nanoparticles after heating to 60 ℃, continuing to react for 24 hours, washing with deionized water and ethanol after the reaction is finished, and drying in a vacuum oven overnight to obtain modified polymer nanoparticles;
(4) according to the solid-liquid ratio of 1 g: adding 60mL of modified polymer nano particles into a sodium hypochlorite aqueous solution, mechanically stirring for 12h, respectively washing the product with water and ethanol for 3-4 times, and carrying out vacuum drying at 60 ℃ for 24h to obtain a composite antibacterial body;
(5) pre-crystallizing the polyester chips in a drying oven at 90 ℃ for 8h, then drying the polyester chips in a vacuum drying oven at 110 ℃ for 24h, and spinning the dried polyester chips and the composite antibacterial body on a melt spinning machine according to the mass ratio of 90-95:1 to obtain the antibacterial polyester fiber.
Further, the mass fraction of the sodium hypochlorite aqueous solution in the step (4) is 30%.
Further, the modified bamboo fiber is prepared by the following method:
(1) adding pyromellitic acid and sodium hypophosphite into an ethanol aqueous solution, heating to 60 ℃, stirring to dissolve, adding the bamboo pulp subjected to vacuum drying, heating the mixed solution to 80 ℃, stirring to dissolve to obtain blended spinning solution, filtering, defoaming in vacuum for 24 hours, and performing spinning by using a spinneret plate to obtain formed bamboo fibers;
(2) placing the formed bamboo fiber into an oven, pre-baking at 90 ℃ for 80-90s, baking at 180 ℃ for 160-170s, washing with water, and drying to obtain modified bamboo fiber;
further, the mass fraction of the ethanol water solution in the step (1) is 60%.
Further, the mass ratio of the pyromellitic acid, the sodium hypophosphite, the ethanol aqueous solution and the dried bamboo pulp in the step (1) is 1:0.2:100: 20.
A preparation process of an antibacterial crease-resistant fabric for business suits comprises the following specific steps:
preparing wool/antibacterial polyester fibers into blended yarns according to a blending ratio of 50/50, wherein the blended yarns are warp yarns; preparing the modified bamboo fiber/stainless steel fiber into blended yarn according to a blending ratio of 60/40, wherein the blended yarn is weft yarn;
the warp and weft yarn density is 16.7tex, the fabric warp density is 150 pieces/10 cm, the weft density is 160 pieces/10 cm, and the fabric is woven on a loom by drafting in a straight-through method.
The invention has the beneficial effects that:
the warp yarn of the fabric is formed by blending wool/antibacterial polyester fiber, the antibacterial polyester fiber is made of polyester fiber and composite antibacterial body, the prepared composite antibacterial body is a synergistic quaternary ammonium salt antibacterial and N-halamine antibacterial mechanism, polyethyleneimine is quaternized after reacting with modified nano titanium dioxide and bromopropylpyrrole, and high polymer quaternary saddle salt has abundant positive charges, can interact with bacteria with negative charges, damages cytoplasmic membranes and causes permeation, so that the antibacterial effect is achieved; meanwhile, the N-Cl bond in the N-halamine is hydrolyzed to release Cl after the treatment of sodium hypochlorite to form a halamine structure+Has strong oxidation effect, and can destroy cell membrane structure, thereby leading to cell inactivation; therefore, the composite antibacterial agent has multiple antibacterial mechanisms and strong antibacterial effect; the nano titanium dioxide particles have excellent ultraviolet resistance, and are subjected to blending spinning with polyester, so that on one hand, the composite antibacterial bodies are polymer-modified inorganic nanoparticles, the surface of the composite antibacterial bodies is bonded with a layer of polymer, the self agglomeration of the nanoparticles can be reduced, the dispersibility is improved, on the other hand, the polymer on the surface layer can also increase the compatibility of the composite antibacterial bodies and the polyester, the uniform distribution of the composite antibacterial bodies in the polyester is realized, and the polyester fibers are endowed with uniform and strong antibacterial capability and ultraviolet resistance; the polyester chips are made of polyethylene terephthalate, and have rigid aromatic rings and symmetrical structures, so that the prepared antibacterial polyester fiber retains the rigidity of terylene, and still has good wrinkle resistance and certain mechanical strength;
weft yarns of the fabric are formed by blending modified bamboo fibers/stainless steel fibers, the bamboo fibers are modified by pyromellitic acid, and-COOH on the pyromellitic acid reacts with-OH on the bamboo fibers under the catalytic action of sodium hypophosphite to form a cross-linked molecular structure, so that the bamboo fibers have anti-wrinkle performance; the cross-linking includes three forms, the intermolecular cross-linking, the intramolecular cross-linking and the grafting with the bamboo fiber by only one carboxyl reaction, when the concentration of the pyromellitic acid is low, the former two forms are the main forms, when the concentration of the pyromellitic acid is increased, the third form is gradually increased, because the concentration of the pyromellitic acid is lower, the cross-linking reaction can be more effectively carried out with the carboxyl on the cellulose, but when the concentration of the pyromellitic acid is high, each carboxyl in the molecule and-OH of the bamboo fiber are subjected to competition reaction, some carboxyl can not compete, some pyromellitic acid can only have one carboxyl to react, namely the grafting reaction, so that the cross-linking degree is not increased any more; therefore, with the increase of the concentration of the pyromellitic acid, the curve of the crease recovery angle of the fiber rapidly rises firstly and then tends to be mild, and the test shows that the crease recovery angle is maximum when the concentration of the pyromellitic acid is 5% (the pyromellitic acid accounts for the mass concentration of the bamboo fiber); in addition, the reaction of pyromellitic acid and bamboo fiber is an esterification crosslinking reaction, and the introduction of covalent crosslinking supplements and enhances intermolecular acting force, so that the structure of the modified bamboo fiber is not easy to slide relatively to crack, and the mechanical property of the bamboo fiber is greatly improved; moreover, the reaction is carried out in the spinning solution, the contact among molecules is increased, the esterification crosslinking reaction is more effectively carried out, and the water washing resistance of the bamboo fiber is further improved; the special high elastic modulus of the stainless steel fiber can endow the fabric with a better shape memory function; the stainless steel fiber has high conductivity, and can effectively improve the antistatic property; in addition, the stainless steel fiber has good mechanical property and rigidity, so that the crease resistance and the stiffness of the fabric can be improved;
the warp of the fabric is formed by blending the wool/antibacterial polyester fiber, the antibacterial polyester fiber is made of the polyester fiber and the composite antibacterial body, and the antibacterial polyester fiber not only has higher antibacterial performance, but also has high ultraviolet resistance, can keep the rigidity of the polyester fiber and has good wrinkle resistance and mechanical strength; the weft yarn is formed by blending modified bamboo fiber/stainless steel fiber, the bamboo fiber is subjected to pyromellitic acid crosslinking modification, the crease resistance and the mechanical strength of the bamboo fiber can be remarkably improved, the bamboo fiber has strong washing resistance, and the excellent property of the stainless steel fiber can improve the crease resistance and the stiffness of the fabric; the prepared fabric has good antibacterial property and wrinkle resistance, has excellent stiffness and is suitable for preparing western-style clothes.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
FIG. 1 is a structural view of the fabric of the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.
An antibacterial crease-resistant fabric for western-style clothes is woven by warps and wefts, wherein the warps are blended yarns obtained by wool/antibacterial polyester fibers according to a blending ratio of 50/50, and the wefts are blended yarns obtained by modified bamboo fibers/stainless steel fibers according to a blending ratio of 60/40;
the warp and weft yarn density is 16.7tex, the fabric warp density is 150 pieces/10 cm, the weft density is 160 pieces/10 cm, the weave structure is a weave diagram as shown in figure 1, and drafting is carried out by adopting a forward drafting method;
the special high elastic modulus of the stainless steel fiber can endow the fabric with a better shape memory function; the stainless steel fiber has high conductivity, and can effectively improve the antistatic property; in addition, the stainless steel fiber has good mechanical property and rigidity, so that the crease resistance and the stiffness of the fabric can be improved;
the antibacterial polyester fiber is prepared by the following method:
(1) dissolving epoxy propionic acid in deionized water to prepare an epoxy propionic acid water solution with the mass fraction of 0.25%; according to the feed-liquid ratio of 1 g: 80mL of nano TiO2Adding into epoxy propionic acid water solution, refluxing at 40 deg.C for 12 hr, washing with deionized water for several times to remove unreacted epoxy propionic acid, and drying in vacuum oven to obtain modified nanometer TiO2Particles;
in the step, the-OH on the surface of the titanium dioxide reacts with the-COOH of the epoxy propionic acid to graft the epoxy propionic acid on the surface of the titanium dioxide to obtain the epoxy propionic acid modified nano TiO2Particles;
(2) according to the feed-liquid ratio of 1 g: 10mL of the modified nano TiO2Dispersing the particles into methanol, adding polyethyleneimine according to the mass ratio of 4:1, reacting for 7h at 3 ℃, washing for 6-8 times by using deionized water and ethanol after the reaction is finished, and then drying in vacuum to obtain polymer modified nanoparticles;
performing ring opening reaction on the epoxy functional groups on the surfaces of the modified nanoparticles and primary amino and secondary amino groups on polyethyleneimine, and performing tertiary amination on the surfaces of the polyethyleneimine to graft the modified nanoparticles onto polyethylene molecules to form polymer modified nanoparticles;
(3) weighing 0.1g of bromopropylpyrrole, dissolving the bromopropylpyrrole in 50mL of methanol, adding 0.5g of polymer nanoparticles after heating to 60 ℃, continuing to react for 24 hours, washing with deionized water and ethanol after the reaction is finished, and drying in a vacuum oven overnight to obtain modified polymer nanoparticles;
in the reaction process, the bromopropylpyrrole and the tertiary amine site of the polyethyleneimine on the surface of the nano particles are subjected to substitution reaction, namely the quaternization process of the polyethyleneimine;
(4) according to the solid-liquid ratio of 1 g: adding 60mL of modified polymer nano particles into a sodium hypochlorite aqueous solution (the mass fraction of the sodium hypochlorite aqueous solution is 30%), mechanically stirring for 12 hours, respectively washing the product with water and ethanol for 3-4 times, and vacuum-drying at 60 ℃ for 24 hours to obtain a composite antibacterial body;
(5) pre-crystallizing the polyester chips in a drying oven at 90 ℃ for 8h, then drying the polyester chips in a vacuum drying oven at 110 ℃ for 24h, and spinning the dried polyester chips and the composite antibacterial body on a melt spinning machine according to the mass ratio of 90-95:1 to obtain the antibacterial polyester fiber;
to obtainThe composite antibacterial body is a synergistic quaternary ammonium salt antibacterial and N-halamine antibacterial mechanism, the polyethyleneimine is quaternized after reacting with the modified nano titanium dioxide and the bromopropylpyrrole, and the high-molecular quaternary saddle salt has rich positive charges, can interact with bacteria with negative charges, damages cytoplasmic membranes and causes permeation, thereby playing an antibacterial role; meanwhile, the N-Cl bond in the N-halamine is hydrolyzed to release Cl after the treatment of sodium hypochlorite to form a halamine structure+Has strong oxidation effect, and can destroy cell membrane structure, thereby leading to cell inactivation; therefore, the composite antibacterial agent has multiple antibacterial mechanisms and strong antibacterial effect; the nano titanium dioxide particles have excellent ultraviolet resistance, and are subjected to blending spinning with polyester, so that on one hand, the composite antibacterial bodies are polymer-modified inorganic nanoparticles, the surface of the composite antibacterial bodies is bonded with a layer of polymer, the self agglomeration of the nanoparticles can be reduced, the dispersibility is improved, on the other hand, the polymer on the surface layer can also increase the compatibility of the composite antibacterial bodies and the polyester, the uniform distribution of the composite antibacterial bodies in the polyester is realized, and the polyester fibers are endowed with uniform and strong antibacterial capability and ultraviolet resistance; the polyester chips are made of polyethylene terephthalate, and have rigid aromatic rings and symmetrical structures, so that the prepared antibacterial polyester fiber retains the rigidity of terylene, and still has good wrinkle resistance and certain mechanical strength;
the modified bamboo fiber is prepared by the following method:
(1) adding pyromellitic acid and sodium hypophosphite into an ethanol aqueous solution (the mass fraction of the ethanol aqueous solution is 60 percent), heating to 60 ℃, stirring to dissolve, adding the bamboo pulp subjected to vacuum drying, heating the mixed solution to 80 ℃, stirring to dissolve to obtain a blended spinning solution, filtering, defoaming in vacuum for 24 hours, and performing spinning by a spinneret plate to obtain formed bamboo fibers;
wherein the mass fraction of pyromellitic acid, sodium hypophosphite, an ethanol aqueous solution and the dry bamboo pulp is 1:0.2:100: 20;
(2) placing the formed bamboo fiber into an oven, pre-baking at 90 ℃ for 80-90s, baking at 180 ℃ for 160-170s, washing with water, and drying to obtain modified bamboo fiber;
under the catalytic action of sodium hypophosphite, the-COOH on the pyromellitic acid reacts with the-OH on the bamboo fibers to form a cross-linked molecular structure, so that the bamboo fibers have the anti-wrinkle performance; the cross-linking includes three forms, the intermolecular cross-linking, the intramolecular cross-linking and the grafting with the bamboo fiber by only one carboxyl reaction, when the concentration of the pyromellitic acid is low, the former two forms are the main forms, when the concentration of the pyromellitic acid is increased, the third form is gradually increased, because the concentration of the pyromellitic acid is lower, the cross-linking reaction can be more effectively carried out with the carboxyl on the cellulose, but when the concentration of the pyromellitic acid is high, each carboxyl in the molecule and-OH of the bamboo fiber are subjected to competition reaction, some carboxyl can not compete, some pyromellitic acid can only have one carboxyl to react, namely the grafting reaction, so that the cross-linking degree is not increased any more; therefore, with the increase of the concentration of the pyromellitic acid, the curve of the crease recovery angle of the fiber rapidly rises firstly and then tends to be mild, and the test shows that the crease recovery angle is maximum when the concentration of the pyromellitic acid is 5% (the pyromellitic acid accounts for the mass concentration of the bamboo fiber); in addition, the reaction of pyromellitic acid and bamboo fiber is an esterification crosslinking reaction, and the introduction of covalent crosslinking supplements and enhances intermolecular acting force, so that the structure of the modified bamboo fiber is not easy to slide relatively to crack, and the mechanical property of the bamboo fiber is greatly improved; moreover, the reaction is carried out in the spinning solution, the contact among molecules is increased, the esterification crosslinking reaction is more effectively carried out, and the water washing resistance of the bamboo fiber is further improved;
the preparation process of the fabric comprises the following steps:
the warp and weft yarn density is 16.7tex, the fabric warp density is 150 pieces/10 cm, the weft density is 160 pieces/10 cm, the weave structure is a weave diagram as shown in figure 1, drafting is carried out by adopting a forward drafting method, and the fabric is woven on a weaving machine.
Example 1
The antibacterial polyester fiber is prepared by the following method:
(1) dissolving epoxy propionic acid in deionized water to prepare an epoxy propionic acid water solution with the mass fraction of 0.25%; according to the feed-liquid ratio of 1 g: 80mL of the mixtureTiO2Adding into epoxy propionic acid water solution, refluxing at 40 deg.C for 12 hr, washing with deionized water for several times to remove unreacted epoxy propionic acid, and drying in vacuum oven to obtain modified nanometer TiO2Particles;
(2) according to the feed-liquid ratio of 1 g: 10mL of the modified nano TiO2Dispersing the particles into methanol, adding polyethyleneimine according to the mass ratio of 4:1, reacting for 7h at 3 ℃, washing for 6-8 times by using deionized water and ethanol after the reaction is finished, and then drying in vacuum to obtain polymer modified nanoparticles;
(3) weighing 0.1g of bromopropylpyrrole, dissolving the bromopropylpyrrole in 50mL of methanol, adding 0.5g of polymer nanoparticles after heating to 60 ℃, continuing to react for 24 hours, washing with deionized water and ethanol after the reaction is finished, and drying in a vacuum oven overnight to obtain modified polymer nanoparticles;
(4) according to the solid-liquid ratio of 1 g: adding 60mL of modified polymer nano particles into a sodium hypochlorite aqueous solution (the mass fraction of the sodium hypochlorite aqueous solution is 30%), mechanically stirring for 12 hours, respectively washing the product with water and ethanol for 3-4 times, and vacuum-drying at 60 ℃ for 24 hours to obtain a composite antibacterial body;
(5) pre-crystallizing the polyester chips in a drying oven at 90 ℃ for 8h, then drying the polyester chips in a vacuum drying oven at 110 ℃ for 24h, and spinning the dried polyester chips and the composite antibacterial body on a melt spinning machine according to the mass ratio of 90-95:1 to obtain the antibacterial polyester fiber.
Comparative example 1
Pre-crystallizing the polyester chips in a drying oven at 90 ℃ for 8h, then putting the polyester chips in a vacuum drying oven at 110 ℃ for drying for 24h, and spinning the dried polyester chips on a melt spinning machine to obtain the polyester fiber.
The following performance tests were performed on the antibacterial polyester fiber obtained in example 1 and the polyester fiber of comparative example 1: testing the mechanical property of the fiber on a material testing machine according to GB/T14344-; testing the washing resistance according to GB/T12490-; the test results are given in table 1 below:
TABLE 1
Figure BDA0002420191770000101
As can be seen from table 1 above, the mechanical properties of the antibacterial polyester fiber prepared in example 1 are very different from those of the common polyester fiber, that is, the mechanical properties of the polyester fiber can be maintained after the antibacterial modification treatment of the polyester fiber; the bacteriostasis rates of the antibacterial polyester fiber prepared in the embodiment 1 to escherichia coli and staphylococcus aureus are respectively 99.0% and 98.6%, which shows that the antibacterial polyester fiber prepared in the invention has strong antibacterial performance; after 30 times of washing, the reduction range of the antibacterial rate is very small, which shows that the prepared antibacterial polyester fiber has good washing resistance.
Example 2
The modified bamboo fiber is prepared by the following method:
(1) adding pyromellitic acid and sodium hypophosphite into an ethanol aqueous solution (the mass fraction of the ethanol aqueous solution is 60 percent), heating to 60 ℃, stirring to dissolve, adding the bamboo pulp subjected to vacuum drying, heating the mixed solution to 80 ℃, stirring to dissolve to obtain a blended spinning solution, filtering, defoaming in vacuum for 24 hours, and performing spinning by a spinneret plate to obtain formed bamboo fibers;
wherein the mass fraction of pyromellitic acid, sodium hypophosphite, an ethanol aqueous solution and the dry bamboo pulp is 1:0.2:100: 20;
(2) and (3) placing the formed bamboo fiber into an oven, pre-baking at 90 ℃ for 80s, baking at 180 ℃ for 160s, washing with water, and drying to obtain the modified bamboo fiber.
Example 3
The modified bamboo fiber is prepared by the following method:
(1) adding pyromellitic acid and sodium hypophosphite into an ethanol aqueous solution (the mass fraction of the ethanol aqueous solution is 60 percent), heating to 60 ℃, stirring to dissolve, adding the bamboo pulp subjected to vacuum drying, heating the mixed solution to 80 ℃, stirring to dissolve to obtain a blended spinning solution, filtering, defoaming in vacuum for 24 hours, and performing spinning by a spinneret plate to obtain formed bamboo fibers;
wherein the mass fraction of pyromellitic acid, sodium hypophosphite, an ethanol aqueous solution and the dry bamboo pulp is 1:0.2:100: 20;
(2) and (3) placing the formed bamboo fiber into an oven, pre-baking at 90 ℃ for 90s, baking at 180 ℃ for 170s, washing with water, and drying to obtain the modified bamboo fiber.
Comparative example 2
Bamboo fiber without modification treatment.
The modified bamboo fibers obtained in examples 2 to 3 and comparative example 2 were subjected to the following performance tests: the crease recovery performance of the fiber is adopted to test the crease resistance performance of the fiber (the characteristic mechanism and test method of Zhao standing ring and PTT shape memory fabric are adopted for research, the method in Shanghai, Donghua university, 2010, 75-76 is adopted for test), the crease resistance performance is tested after 30 times of water washing, the water washing resistance performance is further tested, the fiber breaking strength and the breaking elongation are tested by a single fiber strength tester of LLY-06 type, and the test results are shown in the following table:
Figure BDA0002420191770000121
as can be seen from table 2 above, the dry crease recovery angle and the wet crease recovery angle of the modified bamboo fibers prepared in examples 2 to 3 are 39.5 to 39.6 ° and 29.4 to 29.7 °, respectively, and compared with comparative example 2, it is shown that the anti-wrinkle performance of the bamboo fibers can be significantly enhanced after the bamboo fibers are subjected to crosslinking modification treatment; after washing for 30 times, the dry crease recovery angle and the wet crease recovery angle are respectively 36.4-36.5 degrees and 25.3-25.8 degrees, which indicates that the obtained modified bamboo fiber has higher washing resistance; the wet breaking strength is 1.45-1.47cN dtex-1Wet modulus of 15.3-15.6cN dtex-1The improvement of the mechanical properties of the bamboo fibers after the modification treatment is demonstrated.
Example 4
An antibacterial crease-resistant fabric for western-style clothes is woven by warps and wefts, wherein the warps are blended yarns obtained by wool/antibacterial polyester fibers prepared in example 1 according to a blending ratio of 50/50, and the wefts are blended yarns obtained by modified bamboo fibers/stainless steel fibers prepared in example 2 according to a blending ratio of 60/40;
the warp and weft yarn density is 16.7tex, the fabric warp density is 150 pieces/10 cm, the weft density is 160 pieces/10 cm, the weave structure is the weave diagram shown in figure 1, and drafting is carried out by adopting a forward drawing method.
Example 5
An antibacterial crease-resistant fabric for western-style clothes is woven by warps and wefts, wherein the warps are blended yarns obtained by wool/antibacterial polyester fibers prepared in example 1 according to a blending ratio of 50/50, and the wefts are blended yarns obtained by modified bamboo fibers/stainless steel fibers prepared in example 3 according to a blending ratio of 60/40;
the warp and weft yarn density is 16.7tex, the fabric warp density is 150 pieces/10 cm, the weft density is 160 pieces/10 cm, the weave structure is the weave diagram shown in figure 1, and drafting is carried out by adopting a forward drawing method.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims (7)

1. The antibacterial crease-resistant fabric for the suit is characterized by being woven by warp yarns and weft yarns, wherein the warp yarns are blended yarns obtained by wool/antibacterial polyester fibers according to a blending ratio of 50/50, and the weft yarns are blended yarns obtained by modified bamboo fibers/stainless steel fibers according to a blending ratio of 60/40;
the warp and weft yarn density is 16.7tex, the fabric warp density is 150 pieces/10 cm, the weft density is 160 pieces/10 cm, and the fabric is woven on a loom by drafting in a straight-through method.
2. The antibacterial crease-resistant fabric for western-style clothes according to claim 1, wherein the antibacterial polyester fiber is prepared by the following method:
(1) dissolving epoxy propionic acid in deionized water to prepare an epoxy propionic acid water solution with the mass fraction of 0.25%; according to the feed-liquid ratio of 1 g: 80mL of nano TiO2Adding into the epoxy propionic acid aqueous solution, 4Refluxing at 0 deg.C for 12h, washing with deionized water for several times to remove unreacted epoxy propionic acid, and drying in vacuum oven to obtain modified nanometer TiO2Particles;
(2) according to the feed-liquid ratio of 1 g: 10mL of the modified nano TiO2Dispersing the particles into methanol, adding polyethyleneimine according to the mass ratio of 4:1, reacting for 7h at 3 ℃, washing for 6-8 times by using deionized water and ethanol after the reaction is finished, and then drying in vacuum to obtain polymer modified nanoparticles;
(3) weighing 0.1g of bromopropylpyrrole, dissolving the bromopropylpyrrole in 50mL of methanol, adding 0.5g of polymer nanoparticles after heating to 60 ℃, continuing to react for 24 hours, washing with deionized water and ethanol after the reaction is finished, and drying in a vacuum oven overnight to obtain modified polymer nanoparticles;
(4) according to the solid-liquid ratio of 1 g: adding 60mL of modified polymer nano particles into a sodium hypochlorite aqueous solution, mechanically stirring for 12h, respectively washing the product with water and ethanol for 3-4 times, and carrying out vacuum drying at 60 ℃ for 24h to obtain a composite antibacterial body;
(5) pre-crystallizing the polyester chips in a drying oven at 90 ℃ for 8h, then drying the polyester chips in a vacuum drying oven at 110 ℃ for 24h, and spinning the dried polyester chips and the composite antibacterial body on a melt spinning machine according to the mass ratio of 90-95:1 to obtain the antibacterial polyester fiber.
3. The antibacterial crease-resistant fabric for western-style clothes according to claim 2, wherein the mass fraction of the sodium hypochlorite aqueous solution in the step (4) is 30%.
4. The antibacterial crease-resistant fabric for western-style clothes according to claim 1, wherein the modified bamboo fiber is prepared by the following method:
(1) adding pyromellitic acid and sodium hypophosphite into an ethanol aqueous solution, heating to 60 ℃, stirring to dissolve, adding the bamboo pulp subjected to vacuum drying, heating the mixed solution to 80 ℃, stirring to dissolve to obtain blended spinning solution, filtering, defoaming in vacuum for 24 hours, and performing spinning by using a spinneret plate to obtain formed bamboo fibers;
(2) and (3) placing the formed bamboo fiber into an oven, pre-baking at 90 ℃ for 80-90s, baking at 180 ℃ for 160-170s, washing with water, and drying to obtain the modified bamboo fiber.
5. The antibacterial crease-resistant fabric for the western-style clothes according to claim 4, wherein the mass fraction of the ethanol water solution in the step (1) is 60%.
6. The antibacterial crease-resistant fabric for the suit according to claim 4, wherein the mass ratio of the pyromellitic acid, the sodium hypophosphite, the ethanol aqueous solution and the dry bamboo pulp in the step (1) is 1:0.2:100: 20.
7. The preparation process of the antibacterial and crease-resistant fabric for the western-style clothes according to claim 1 is characterized by comprising the following specific steps of:
preparing wool/antibacterial polyester fibers into blended yarns according to a blending ratio of 50/50, wherein the blended yarns are warp yarns; preparing the modified bamboo fiber/stainless steel fiber into blended yarn according to a blending ratio of 60/40, wherein the blended yarn is weft yarn;
the warp and weft yarn density is 16.7tex, the fabric warp density is 150 pieces/10 cm, the weft density is 160 pieces/10 cm, and the fabric is woven on a loom by drafting in a straight-through method.
CN202010203587.1A 2020-03-20 2020-03-20 Antibacterial crease-resistant fabric for business suit and preparation process thereof Withdrawn CN111349995A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113430821A (en) * 2021-06-24 2021-09-24 苏州市德赫亚新纺织科技有限公司 Preparation method of wool blended fabric with anti-pilling and antibacterial effects

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113430821A (en) * 2021-06-24 2021-09-24 苏州市德赫亚新纺织科技有限公司 Preparation method of wool blended fabric with anti-pilling and antibacterial effects

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