CN114086315A - High-antibacterial-property down quilt core and preparation method thereof - Google Patents
High-antibacterial-property down quilt core and preparation method thereof Download PDFInfo
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- CN114086315A CN114086315A CN202111332187.1A CN202111332187A CN114086315A CN 114086315 A CN114086315 A CN 114086315A CN 202111332187 A CN202111332187 A CN 202111332187A CN 114086315 A CN114086315 A CN 114086315A
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
- D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
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- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/0007—Electro-spinning
- D01D5/0015—Electro-spinning characterised by the initial state of the material
- D01D5/003—Electro-spinning characterised by the initial state of the material the material being a polymer solution or dispersion
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- 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
- D01F1/07—Addition of substances to the spinning solution or to the melt for making fire- or flame-proof filaments
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- 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
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- 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
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/02—Cotton wool; Wadding
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
- D04H1/43835—Mixed fibres, e.g. at least two chemically different fibres or fibre blends
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
- D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
- D04H1/48—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres in combination with at least one other method of consolidation
- D04H1/485—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres in combination with at least one other method of consolidation in combination with weld-bonding
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- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2401/00—Physical properties
- D10B2401/13—Physical properties anti-allergenic or anti-bacterial
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- D10B2503/00—Domestic or personal
- D10B2503/06—Bed linen
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Abstract
The invention discloses a down quilt core with high antibacterial property and a preparation method thereof. Firstly, preliminarily crushing down feather fibers to obtain superfine down feather powder, mixing the superfine down feather powder with cinnamaldehyde, adding quaternary phosphonium salt for modification to obtain modified superfine down feather powder, chelating the modified superfine down feather powder with polylactic acid nano fibers through electrostatic spinning to obtain composite fibers, grafting and modifying the composite fibers with melamine and phosphoric acid to obtain the high-antibacterial-property down feather fibers, drawing and shaping the high-antibacterial-property down feather fibers, and laminating the high-antibacterial-property down feather fibers layer by layer through a silk activation treatment technology to obtain the high-antibacterial-property down feather quilt core. The down quilt core with high antibacterial property prepared by the invention has the effects of antibacterial property, flame retardance, hydrophobicity and moisture permeability.
Description
Technical Field
The invention relates to the technical field of fabric weaving, in particular to a down quilt core with high antibacterial property and a preparation method thereof.
Background
The quilt core product is a necessity of life of people, is one of leading products in home textile products, particularly bedding products, has large market demand and wide development space, is influenced by the development of various aspects such as economy, society, science and technology in recent years, the consumption capability and the consumption concept of people are continuously changed, the market has new characteristics for the consumption demand of quilt core products, and is worthy of the attention of home textile enterprises, and the trend and the pursuit of people for high-quality and good home life are creatively met according to the development direction of good quilt core products, but the antibacterial quilt core on the market generally faces low degree, the individual performance is not outstanding, and the utilization rate of the down quilt core is reduced.
The down quilt core with high antibacterial property prepared by the invention can meet the comfort requirement of people, has the effects of antibiosis, flame retardance, hydrophobicity and moisture permeability, develops a wider performance field for bedding, can improve the social and economic development, and achieves two purposes at one stroke.
Disclosure of Invention
The invention aims to provide a down quilt core with high antibacterial property and a preparation method thereof, and aims to solve the problems in the prior art.
In order to solve the technical problems, the invention provides the following technical scheme: a down quilt core with high antibacterial property mainly comprises the following components in parts by weight:
50-70 parts of composite fiber, 20-30 parts of melamine and 10-20 parts of phosphoric acid.
Further, the composite fiber comprises modified superfine down powder and polylactic acid fiber.
Furthermore, the modified superfine down feather powder is prepared by modifying superfine down feather powder through cinnamic acid and quaternary phosphonium salt.
Furthermore, the superfine down feather powder is prepared by crushing down feather fibers through a rotary knife type machine.
Further, the high antibacterial down feather fiber is prepared from composite fiber, melamine and phosphoric acid through electrostatic spinning.
Further, the preparation method of the down quilt core with high antibacterial property is characterized by mainly comprising the following preparation steps:
(1) preparing modified superfine down powder: firstly, smashing down fibers into superfine down powder, ultrasonically dispersing the superfine down powder and dimethylformamide, adding cinnamaldehyde and quaternary phosphonium salt aqueous solution, mixing and stirring, washing and drying to obtain modified superfine down powder;
(2) preparing the composite fiber: mixing acetone and dimethylformamide, adding polylactic acid fiber and modified superfine down powder, and performing electrostatic spinning to prepare composite fiber;
(3) preparing the high antibacterial down feather fibers: mixing and dissolving melamine and distilled water, adding phosphoric acid to adjust the pH value of the solution, adding composite fibers, mixing, transferring into a three-neck flask, connecting with condensed water, controlling the reaction temperature and the reaction time, washing and drying after the reaction is finished, and preparing the down feather fibers with high antibacterial property;
(4) preparing the high antibacterial down quilt core: feeding the high-antibacterial-property down feather fibers into an opener for opening, feeding the opened high-antibacterial-property down feather fibers into a carding machine for carding, carrying out primary lapping on the carded high-antibacterial-property down feather fibers through a lapping machine, then feeding the high-antibacterial-property down feather fibers into a needling machine, carrying out needling, then putting the down feather fibers into an oven for baking, and carrying out cooling setting through a compression roller to obtain the high-antibacterial-property down feather quilt core.
Further, the preparation method of the modified superfine down powder in the step (1) comprises the following steps: firstly, breaking down feather fiber into short feather with the particle size of 2-3 mm in a rotary knife type machine, then placing the short feather on a physical breaking device to be broken into superfine down feather powder with the particle size of 2-3 mu m, placing the superfine down feather powder into a flat-bottomed flask, drying in an oven at 100-110 ℃ for 1.5-2 h, adding dimethylformamide with the mass of 0.2-0.4 times of that of the superfine down feather powder, fully and uniformly stirring, dispersing the mixture in ultrasonic waves for 1 to 2 hours at the frequency of 20 to 40kHz, standing the mixture for 20 to 24 hours, adding cinnamaldehyde which is 0.5 to 0.7 time of the mass of the superfine down feather powder, fully stirring the mixture until the mixture is uniform, adding a quaternary phosphonium salt aqueous solution with the concentration of 10 percent, and (3) reacting for 2-10 h in a constant-temperature shaking incubator at the speed of 120-160 rpm and the temperature of 50-60 ℃, taking out after the reaction is finished, washing with distilled water until the washing liquid is neutral, and drying for 1-2 h at the temperature of 40-50 ℃ to obtain the modified superfine down powder.
Further, the preparation method of the composite fiber in the step (2) comprises the following steps: mixing acetone and dimethylformamide according to the mass ratio of 1: 1-1: 2 to obtain a mixed solution, adding polylactic acid fibers with the mass of 0.6-0.8 times of that of the mixed solution, stirring uniformly, adding modified superfine down feather powder with the mass of 0.3-0.5 times of that of the mixed solution, continuously stirring uniformly, transferring into a spinning device made of a No. 7 injector, adjusting the receiving distance to be 13-17 cm by taking an aluminum foil with the thickness of 15cm and 15cm as a receiver, keeping the environmental temperature to be 20-22 ℃, keeping the relative humidity to be 40-50%, and keeping the spinning voltage to be 12-18 kV, and carrying out electrostatic spinning by adopting the process conditions to prepare the composite fibers.
Further, the preparation method of the highly antibacterial down feather fibers in the step (3) comprises the following steps: dissolving melamine and distilled water at 40-50 ℃ according to the mass ratio of 1: 3-1: 5, adding phosphoric acid to adjust the pH value of the solution to 2-3, adding composite fibers according to the water bath ratio of 1: 150-1: 180, mixing, transferring into a three-neck flask, connecting condensed water, controlling the reaction temperature to be 70-90 ℃, reacting for 4-6 h, repeatedly washing the composite fibers for 3-5 times by using distilled water after the reaction is finished, and drying for 1-1.5 h at 40-50 ℃ to obtain the high-antibacterial-property down fiber.
Further, the preparation method of the highly antibacterial down quilt core in the step (4) comprises the following steps: feeding the high-antibacterial-property down feather fibers into an opener in a multi-layer spreading mode for opening for 1-2 times, sucking the opened high-antibacterial-property down feather fibers into a cotton box connected with a carding machine by a suction fan for storage, feeding the cotton box into the carding machine for carding for 2-3 times, spreading the carded high-antibacterial-property down feather fibers by a lapping machine for one time, then feeding the high-antibacterial-property down feather fibers into a needling machine, after needling, placing the down feather fibers into an oven for baking at 150-160 ℃ for 20-25 s, and then cooling and shaping by a compression roller to obtain the high-antibacterial-property down feather quilt core.
Compared with the prior art, the invention has the following beneficial effects:
firstly, preliminarily crushing down feather fibers to obtain superfine down feather powder, mixing the superfine down feather powder with cinnamaldehyde, adding quaternary phosphonium salt for modification to obtain modified superfine down feather powder, chelating the modified superfine down feather powder with polylactic acid nano fibers through electrostatic spinning to obtain composite fibers, grafting and modifying the composite fibers with melamine and phosphoric acid to obtain the high-antibacterial-property down feather fibers, drawing and shaping the high-antibacterial-property down feather fibers, and layering the high-antibacterial-property down feather fibers by using a silk activation treatment technology to obtain the high-antibacterial-property down feather quilt core.
Cinnamaldehyde is used as a polar substance, so that the crystallinity of superfine down feather powder in a fiber matrix is easily promoted, the overall density is increased, hydrophilic groups of the superfine down feather powder interact with alkyl chains and benzene rings of the cinnamaldehyde, the thermal decomposition temperature can be improved, the thermal stability of the material is enhanced, the surface of the fiber is provided with a large number of positive charges after the quaternary phosphonium salt is modified, the surface of bacteria is mostly composed of negative charges, bacteria are adsorbed on the fiber due to electrostatic action and the adsorption force of the fiber, the quaternary phosphonium functional groups can promote the alkyl chains of the cinnamaldehyde to be combined with amino acid peptide chains of the superfine down feather powder, the benzene rings and the quaternary phosphonium functional groups of the cinnamaldehyde can drive the hydrophobicity of the surface of the bacteria to be enhanced, the integrity of cell membranes is damaged, the activity of the lactonase is reduced, the synthesis of structural proteins and enzyme proteins of the bacteria is inhibited, and the parasitic bacteria cannot carry out normal metabolism and complete physiological functions, so that the cell wall is dead to achieve the antibacterial effect, and when the charge distribution in the system is not uniform, the synthesis and dissolution balance of the cell wall is damaged, and the cell wall is dissolved, so that the bacteriostatic effect is achieved;
after the modified superfine down powder is chelated with the polylactic acid fiber, the long hydrocarbon molecular chain on the surface of the modified superfine down powder can improve the compatibility between the superfine down powder and the polyurethane fiber, when encountering high temperature, the cross-linked structure of the modified superfine down powder and the polylactic acid fiber starts to decompose, simultaneously the protein of the modified superfine down powder is carbonized and cracked, the hydrogen bonds connected between the peptide bonds of the down spiral structure are cracked, and gas is released to cover the surface of the fiber to form a layer of barrier layer, thereby diluting the concentration of oxygen, inhibiting the combustion of the fiber and achieving the purpose of flame retardance;
the fiber after the grafting modification of melamine and phosphoric acid has strong surface tension, and benzene ring groups in cinnamaldehyde can form a series of hydrophobic micro-regions in a fiber matrix through long hydrocarbon molecular chains of the modified superfine down powder, so that the hydrophobic acting force between chain segments is enhanced, the outward migration of water molecules can be promoted, larger gaps are formed in the chelating process of polylactic acid fiber, a uniform and smooth through long-hole structure is formed, the gap between the two can also increase the outward diffusion channel of the water molecules, and the moisture permeability of the down fiber with high antibacterial property is enhanced.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious 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.
In order to more clearly illustrate the method provided by the present invention, the following examples are used for detailed description, and the method for testing each index of the high antibacterial down quilt core manufactured in the following examples is as follows:
antibacterial property: escherichia coli and staphylococcus aureus are selected for carrying out an inhibition zone experiment, the down quilt cores with high antibacterial property prepared by the components in the example 1, the comparative example 1 and the comparative example 1 are placed in a bacteria incubator and taken out after 24 hours, the survival rate of bacteria is observed by a microscope, and the lower the survival rate is, the better the antibacterial property is.
Flame retardant property: the high antibacterial down quilt cores prepared by the components of the example 1, the example 2 and the comparative example 2 are subjected to a flame retardant property test; and observing the LOI value of the high-temperature-resistant and high-toughness fabric, wherein the larger the LOI value is, the better the flame retardant property is.
Example 1
A down quilt core with high antibacterial property mainly comprises the following components in parts by weight: 50 parts of composite fiber, 20 parts of melamine and 10 parts of phosphoric acid.
A preparation method of a high antibacterial down quilt core mainly comprises the following preparation steps:
(1) preparing modified superfine down powder: firstly, smashing down fibers into superfine down powder, ultrasonically dispersing the superfine down powder and dimethylformamide, adding cinnamaldehyde and quaternary phosphonium salt aqueous solution, mixing and stirring, washing and drying to obtain modified superfine down powder;
(2) preparing the composite fiber: mixing acetone and dimethylformamide, adding polylactic acid fiber and modified superfine down powder, and performing electrostatic spinning to prepare composite fiber;
(3) preparing the high antibacterial down feather fibers: mixing and dissolving melamine and distilled water, adding phosphoric acid to adjust the pH value of the solution, adding composite fibers, mixing, transferring into a three-neck flask, connecting with condensed water, controlling the reaction temperature and the reaction time, washing and drying after the reaction is finished, and preparing the down feather fibers with high antibacterial property;
(4) preparing the high antibacterial down quilt core: feeding the high-antibacterial-property down feather fibers into an opener for opening, feeding the opened high-antibacterial-property down feather fibers into a carding machine for carding, carrying out primary lapping on the carded high-antibacterial-property down feather fibers through a lapping machine, then feeding the high-antibacterial-property down feather fibers into a needling machine, carrying out needling, then putting the down feather fibers into an oven for baking, and carrying out cooling setting through a compression roller to obtain the high-antibacterial-property down feather quilt core.
Further, the preparation method of the modified superfine down powder in the step (1) comprises the following steps: firstly, smashing down fibers into short down with the particle size of 2mm in a rotary knife type machine, then placing the short down fibers on a physical smashing device to be smashed into superfine down powder with the particle size of 2-3 mu m, placing the superfine down powder into a flat-bottomed flask, drying the superfine down powder for 1.5h in an oven at 100 ℃, adding dimethylformamide with the mass of 0.2 time of the superfine down powder, fully and uniformly stirring the mixture, dispersing the mixture in ultrasonic waves for 1h at the frequency of 20kHz, standing the mixture for 20h, adding cinnamaldehyde with the mass of 0.5 time of the superfine down powder, fully and uniformly stirring the mixture, adding a quaternary phosphonium salt aqueous solution with the concentration of 10%, reacting the mixture for 2h at the temperature of 50 ℃ at 120rpm in a constant-temperature oscillation incubator, taking the mixture out after the reaction is finished, washing the mixture with distilled water until the washing solution is neutral, and drying the mixture for 1h at the temperature of 40 ℃ to obtain the modified superfine down powder.
Further, the preparation method of the composite fiber in the step (2) comprises the following steps: mixing acetone and dimethylformamide according to the mass ratio of 1:1 to obtain a mixed solution, adding polylactic acid fiber with the mass of 0.6 time of that of the mixed solution, stirring uniformly, adding modified superfine down feather powder with the mass of 0.3 time of that of the mixed solution, continuously stirring uniformly, transferring into a spinning device made of a No. 7 syringe, taking an aluminum foil with the length of 15cm multiplied by 15cm as a receiver, adjusting the receiving distance to be 13cm, keeping the environmental temperature at 20 ℃, the relative humidity at 40% and the spinning voltage at 12kV, and carrying out electrostatic spinning by adopting the process conditions to prepare the composite fiber.
Further, the preparation method of the highly antibacterial down feather fibers in the step (3) comprises the following steps: dissolving melamine and distilled water at 40 ℃ according to the mass ratio of 1:3, adding phosphoric acid to adjust the pH value of the solution to 2, adding composite fiber according to the water bath ratio of 1:150, mixing, transferring into a three-neck flask, connecting condensed water, controlling the reaction temperature to be 70 ℃, reacting for 4 hours, repeatedly washing the composite fiber for 3 times by using distilled water after the reaction is finished, and drying for 1 hour at 40 ℃ to obtain the down fiber with high antibacterial property.
Further, the preparation method of the highly antibacterial down quilt core in the step (4) comprises the following steps: feeding the high-antibacterial-property down feather fibers into an opener in a multi-layer tiling mode for opening for 1 time, sucking the opened high-antibacterial-property down feather fibers into a cotton box connected with a carding machine by a suction fan for storage, feeding the cotton box into the carding machine for carding for 2 times, lapping the carded high-antibacterial-property down feather fibers by a lapping machine for one time, then feeding the high-antibacterial-property down feather fibers into a needling machine for needling, baking the high-antibacterial-property down feather fibers in an oven at 150 ℃ for 20s, and cooling and shaping by a compression roller to obtain the high-antibacterial-property down feather quilt core.
Example 2
A down quilt core with high antibacterial property mainly comprises the following components in parts by weight: 70 parts of composite fiber, 30 parts of melamine and 20 parts of phosphoric acid.
A preparation method of a high antibacterial down quilt core mainly comprises the following preparation steps:
(1) preparing modified superfine down powder: firstly, smashing down fibers into superfine down powder, ultrasonically dispersing the superfine down powder and dimethylformamide, adding cinnamaldehyde and quaternary phosphonium salt aqueous solution, mixing and stirring, washing and drying to obtain modified superfine down powder;
(2) preparing the composite fiber: mixing acetone and dimethylformamide, adding polylactic acid fiber and modified superfine down powder, and performing electrostatic spinning to prepare composite fiber;
(3) preparing the high antibacterial down feather fibers: mixing and dissolving melamine and distilled water, adding phosphoric acid to adjust the pH value of the solution, adding composite fibers, mixing, transferring into a three-neck flask, connecting with condensed water, controlling the reaction temperature and the reaction time, washing and drying after the reaction is finished, and preparing the down feather fibers with high antibacterial property;
(4) preparing the high antibacterial down quilt core: feeding the high-antibacterial-property down feather fibers into an opener for opening, feeding the opened high-antibacterial-property down feather fibers into a carding machine for carding, carrying out primary lapping on the carded high-antibacterial-property down feather fibers through a lapping machine, then feeding the high-antibacterial-property down feather fibers into a needling machine, carrying out needling, then putting the down feather fibers into an oven for baking, and carrying out cooling setting through a compression roller to obtain the high-antibacterial-property down feather quilt core.
Further, the preparation method of the modified superfine down powder in the step (1) comprises the following steps: firstly, smashing down fibers into short fibers with the particle size of 3mm in a rotary knife type machine, then placing the short fibers on a physical smashing device to be smashed into superfine down powder with the particle size of 3 mu m, placing the superfine down powder into a flat-bottomed flask, drying the superfine down powder for 2 hours in a 110 ℃ oven, adding dimethylformamide with the mass of 0.4 time of the superfine down powder, fully and uniformly stirring the mixture, dispersing the mixture for 2 hours in ultrasonic waves according to the frequency of 40kHz, standing the mixture for 24 hours, adding cinnamaldehyde with the mass of 0.7 time of the superfine down powder, fully and uniformly stirring the mixture, adding a quaternary phosphonium salt aqueous solution with the concentration of 10%, reacting the mixture for 10 hours in a constant-temperature oscillation incubator at the temperature of 60 ℃ at 160rpm, taking the mixture out after the reaction is finished, washing the mixture with distilled water until the washing liquid is neutral, and drying the mixture for 2 hours at the temperature of 50 ℃ to obtain the modified superfine down powder.
Further, the preparation method of the composite fiber in the step (2) comprises the following steps: mixing acetone and dimethylformamide according to the mass ratio of 1:2 to obtain a mixed solution, adding polylactic acid fiber with the mass of 0.8 time of that of the mixed solution, stirring uniformly, adding modified superfine down feather powder with the mass of 0.5 time of that of the mixed solution, continuously stirring uniformly, transferring into a spinning device made of a No. 7 syringe, taking an aluminum foil with the length of 15cm multiplied by 15cm as a receiver, adjusting the receiving distance to be 17cm, keeping the environmental temperature at 22 ℃, the relative humidity at 50% and the spinning voltage at 18kV, and carrying out electrostatic spinning by adopting the process conditions to prepare the composite fiber.
Further, the preparation method of the highly antibacterial down feather fibers in the step (3) comprises the following steps: dissolving melamine and distilled water at 50 ℃ according to the mass ratio of 1:5, adding phosphoric acid to adjust the pH value of the solution to 3, adding composite fiber according to the water bath ratio of 1:180, mixing, transferring into a three-neck flask, connecting condensed water, controlling the reaction temperature to be 90 ℃, reacting for 6 hours, repeatedly washing the composite fiber for 5 times by using distilled water after the reaction is finished, and drying for 1.5 hours at 50 ℃ to obtain the down fiber with high antibacterial property.
Further, the preparation method of the highly antibacterial down quilt core in the step (4) comprises the following steps: feeding the high-antibacterial-property down feather fibers into an opener in a multi-layer tiling mode for opening for 2 times, sucking the opened high-antibacterial-property down feather fibers into a cotton box connected with a carding machine by a suction fan for storage, feeding the cotton box into the carding machine for carding for 3 times, lapping the carded high-antibacterial-property down feather fibers by a lapping machine for one time, then feeding the high-antibacterial-property down feather fibers into a needling machine for needling, baking the high-antibacterial-property down feather fibers in an oven at 160 ℃ for 25s after needling, and cooling and shaping the high-antibacterial-property down feather quilt core by a compression roller to obtain the high-antibacterial-property down feather quilt core.
Comparative example 1
The formulation of comparative example 1 was the same as example 1. The preparation method of the down quilt core with high antibacterial property only differs from the example 1 in that the preparation process of the step (1) is not carried out, and the rest of the preparation steps are the same as the example 1.
Comparative example 2
Comparative example 2 was formulated as in example 1. The preparation method of the down quilt core with high antibacterial property only differs from the example 1 in that the preparation process of the step (2) is not carried out, and the rest preparation steps are the same as the example 1.
Effect example 1
The following table 1 shows the results of the antibacterial property test using examples 1 and 2 according to the present invention and comparative example 1.
TABLE 1
| Bacterial survival Rate (%) | |
| Example 1 | 19 |
| Example 2 | 21 |
| Comparative example 1 | 48 |
As can be seen from the above table, the antibacterial properties of examples 1 and 2 are better, and the antibacterial property of comparative example 1 is inferior to examples 1 and 2, which shows that the quaternary phosphonium salt modified makes the fiber surface have a large number of positive charges, the bacteria surface mostly consists of negative charges, the bacteria are adsorbed on the fiber due to the electrostatic effect and the adsorption force of the fiber, the quaternary phosphonium functional group can promote the alkyl chain of cinnamaldehyde to combine with the amino acid peptide chain of the superfine down feather powder, and the benzene ring of cinnamaldehyde and the quaternary phosphonium functional group can drive to enhance the hydrophobicity of the bacteria surface, destroy the integrity of the cell membrane, reduce the activity of the intracellular esterase, inhibit the synthesis of the bacterial structural protein and the enzyme protein, cause the parasitic bacteria not to carry out normal metabolism and complete physiological functions, thereby causing death, achieving the antibacterial effect, and when the charge distribution in the system is not uniform, also cause the destruction of the synthesis and dissolution balance of the cell wall, the cell wall is lysed, thereby acting as a bacteriostatic.
Effect example 2
The following table 2 shows the results of the flame retardant property test using example 1, example 2 and comparative example 2 of the present invention.
TABLE 2
| LOI | |
| Example 1 | 33％ |
| Example 2 | 35％ |
| Comparative example 2 | 17％ |
As can be seen from the above table, the flame retardant performance of the embodiment 1 and the embodiment 2 is better, and the flame retardant performance of the comparative example 2 is inferior to that of the embodiment 1 and the embodiment 2, which illustrates that after the modified superfine down feather powder is chelated with the polylactic acid fiber, the long hydrocarbon molecular chain on the surface of the modified superfine down feather powder can improve the compatibility between the superfine down feather powder and the polyurethane fiber, when encountering high temperature, the crosslinked structure of the modified superfine down feather powder and the polylactic acid fiber starts to decompose, and simultaneously the protein of the modified superfine down feather powder is carbonized and decomposed, and the hydrogen bonds connected between the peptide bonds of the down feather spiral structure are decomposed, and release gas to cover the fiber surface to form a barrier layer, thereby diluting the concentration of oxygen, inhibiting the fiber combustion, and achieving the flame retardant purpose.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (10)
1. The down quilt core with high antibacterial property is characterized by mainly comprising 50-70 parts by weight of composite fibers, 20-30 parts by weight of melamine and 10-20 parts by weight of phosphoric acid.
2. The down quilt core with high antibacterial property as claimed in claim 1, wherein the composite fiber comprises modified superfine down powder and polylactic acid fiber.
3. The down quilt core with high antibacterial property as claimed in claim 2, wherein the modified superfine down powder is prepared by modifying superfine down powder with cinnamic acid and quaternary phosphonium salt.
4. The down quilt core with high antibacterial property as claimed in claim 3, wherein the superfine down powder is prepared by pulverizing down fibers by a rotary knife machine.
5. The down quilt core with high antibacterial property as claimed in claim 4, wherein the down fibers with high antibacterial property are prepared by electrospinning composite fibers, melamine and phosphoric acid.
6. A preparation method of a down quilt core with high antibacterial property is characterized by mainly comprising the following preparation steps:
(1) preparing modified superfine down powder: firstly, smashing down fibers into superfine down powder, ultrasonically dispersing the superfine down powder and dimethylformamide, adding cinnamaldehyde and quaternary phosphonium salt aqueous solution, mixing and stirring, washing and drying to obtain modified superfine down powder;
(2) preparing the composite fiber: mixing acetone and dimethylformamide, adding polylactic acid fiber and modified superfine down powder, and performing electrostatic spinning to prepare composite fiber;
(3) preparing the high antibacterial down feather fibers: mixing and dissolving melamine and distilled water, adding phosphoric acid to adjust the pH value of the solution, adding composite fibers, mixing, transferring into a three-neck flask, connecting with condensed water, controlling the reaction temperature and the reaction time, washing and drying after the reaction is finished, and preparing the down feather fibers with high antibacterial property;
(4) preparing the high antibacterial down quilt core: feeding the high-antibacterial-property down feather fibers into an opener for opening, feeding the opened high-antibacterial-property down feather fibers into a carding machine for carding, carrying out primary lapping on the carded high-antibacterial-property down feather fibers through a lapping machine, then feeding the high-antibacterial-property down feather fibers into a needling machine, carrying out needling, then putting the down feather fibers into an oven for baking, and carrying out cooling setting through a compression roller to obtain the high-antibacterial-property down feather quilt core.
7. The method for preparing the down quilt core with high antibacterial property as claimed in claim 6, wherein the method for preparing the modified superfine down powder in the step (1) comprises the following steps: firstly, breaking down feather fiber into short feather with the particle size of 2-3 mm in a rotary knife type machine, then placing the short feather on a physical breaking device to be broken into superfine down feather powder with the particle size of 2-3 mu m, placing the superfine down feather powder into a flat-bottomed flask, drying in an oven at 100-110 ℃ for 1.5-2 h, adding dimethylformamide with the mass of 0.2-0.4 times of that of the superfine down feather powder, fully and uniformly stirring, dispersing the mixture in ultrasonic waves for 1 to 2 hours at the frequency of 20 to 40kHz, standing the mixture for 20 to 24 hours, adding cinnamaldehyde which is 0.5 to 0.7 time of the mass of the superfine down feather powder, fully stirring the mixture until the mixture is uniform, adding a quaternary phosphonium salt aqueous solution with the concentration of 10 percent, and (3) reacting for 2-10 h in a constant-temperature shaking incubator at the speed of 120-160 rpm and the temperature of 50-60 ℃, taking out after the reaction is finished, washing with distilled water until the washing liquid is neutral, and drying for 1-2 h at the temperature of 40-50 ℃ to obtain the modified superfine down powder.
8. The method for preparing the down quilt core with high antibacterial property according to claim 6, wherein the method for preparing the composite fiber in the step (2) comprises the following steps: mixing acetone and dimethylformamide according to the mass ratio of 1: 1-1: 2 to obtain a mixed solution, adding polylactic acid fibers with the mass of 0.6-0.8 times of that of the mixed solution, stirring uniformly, adding modified superfine down feather powder with the mass of 0.3-0.5 times of that of the mixed solution, continuously stirring uniformly, transferring into a spinning device made of a No. 7 injector, adjusting the receiving distance to be 13-17 cm by taking an aluminum foil with the thickness of 15cm and 15cm as a receiver, keeping the environmental temperature to be 20-22 ℃, keeping the relative humidity to be 40-50%, and keeping the spinning voltage to be 12-18 kV, and carrying out electrostatic spinning by adopting the process conditions to prepare the composite fibers.
9. The method for preparing the down quilt core with high antibacterial property according to claim 6, wherein the method for preparing the down fiber with high antibacterial property in the step (3) comprises the following steps: dissolving melamine and distilled water at 40-50 ℃ according to the mass ratio of 1: 3-1: 5, adding phosphoric acid to adjust the pH value of the solution to 2-3, adding composite fibers according to the water bath ratio of 1: 150-1: 180, mixing, transferring into a three-neck flask, connecting condensed water, controlling the reaction temperature to be 70-90 ℃, reacting for 4-6 h, repeatedly washing the composite fibers for 3-5 times by using distilled water after the reaction is finished, and drying for 1-1.5 h at 40-50 ℃ to obtain the high-antibacterial-property down fiber.
10. The method for preparing the down quilt core with high antibacterial property according to claim 6, wherein the method for preparing the down quilt core with high antibacterial property in the step (4) comprises the following steps: feeding the high-antibacterial-property down feather fibers into an opener in a multi-layer spreading mode for opening for 1-2 times, sucking the opened high-antibacterial-property down feather fibers into a cotton box connected with a carding machine by a suction fan for storage, feeding the cotton box into the carding machine for carding for 2-3 times, spreading the carded high-antibacterial-property down feather fibers by a lapping machine for one time, then feeding the high-antibacterial-property down feather fibers into a needling machine, after needling, placing the down feather fibers into an oven for baking at 150-160 ℃ for 20-25 s, and then cooling and shaping by a compression roller to obtain the high-antibacterial-property down feather quilt core.
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| CN202111332187.1A CN114086315B (en) | 2021-11-11 | 2021-11-11 | High-antibacterial down quilt core and preparation method thereof |
| CN202211544790.0A CN116837540A (en) | 2021-11-11 | 2021-11-11 | High antibacterial down quilt core |
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Cited By (2)
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| CN115287824A (en) * | 2022-06-29 | 2022-11-04 | 惠州市普林摩斯无纺布有限公司 | Antibacterial anti-mite non-woven fabric for mattress lining and preparation process thereof |
| CN115418743A (en) * | 2022-10-08 | 2022-12-02 | 高梵(浙江)信息技术有限公司 | Production method of micro-nanofiber down blended cotton |
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| CN116837540A (en) | 2023-10-03 |
| CN114086315B (en) | 2023-05-05 |
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Effective date of registration: 20230406 Address after: 537000 Jiangbei Road, Qiaowei Town, Gangnan District, Guigang City, Guangxi Zhuang Autonomous Region Applicant after: Guigang Linda down products Co.,Ltd. Address before: 214000 No. 267, huitai Road, Liangxi District, Wuxi City, Jiangsu Province Applicant before: Shi Hongchao |
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