CN114525616B - Double-line nylon black yarn double-layer down-filled cloth - Google Patents
Double-line nylon black yarn double-layer down-filled cloth Download PDFInfo
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- CN114525616B CN114525616B CN202210372609.6A CN202210372609A CN114525616B CN 114525616 B CN114525616 B CN 114525616B CN 202210372609 A CN202210372609 A CN 202210372609A CN 114525616 B CN114525616 B CN 114525616B
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- 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
- D03D15/20—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
- D03D15/283—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads synthetic polymer-based, e.g. polyamide or polyester fibres
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
- C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
- C08G69/08—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from amino-carboxylic acids
- C08G69/14—Lactams
- C08G69/16—Preparatory processes
- C08G69/18—Anionic polymerisation
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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
- D01F1/10—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
- D01F6/90—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of polyamides
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D11/00—Double or multi-ply fabrics not otherwise provided for
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- 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
- D03D15/50—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads
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- 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
- D03D15/50—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads
- D03D15/527—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads waterproof or water-repellent
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- 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
- D03D15/50—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads
- D03D15/54—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads coloured
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/02—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides
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- 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
- D10B2401/13—Physical properties anti-allergenic or anti-bacterial
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- 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
- D10B2501/00—Wearing apparel
- D10B2501/04—Outerwear; Protective garments
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- 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
- D10B2503/00—Domestic or personal
- D10B2503/06—Bed linen
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
- Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear
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Abstract
The application relates to the technical field of textile, and particularly discloses double-line nylon black yarn double-layer down-filling cloth. The double-line nylon black yarn double-layer down-filled cloth is prepared from antibacterial nylon slices sequentially through a melt spinning process, a finishing weaving process and a dyeing finishing process, wherein the antibacterial nylon slices comprise the following raw materials in parts by mass: 80 to 120 parts of caprolactam, 3 to 8 parts of modified nano silicon dioxide and 0.1 to 1 part of inorganic antibacterial agent; wherein the modified nano silicon dioxide is obtained by modifying nano silicon dioxide by a fluorosilane coupling agent. The fleece-filled fabric prepared by the method has excellent and stable antibacterial performance.
Description
Technical Field
The application relates to the technical field of textile, in particular to double-line nylon black yarn double-layer down-filling cloth.
Background
The down filling cloth is a thin fabric with smaller linear density value and larger density, and is also called down cloth, down preventing cloth and down preventing cloth because the down filling cloth is commonly used as a fabric of down clothing and down quilt and can prevent down from being drilled outwards.
Nylon fiber is a synthetic fiber, and is widely used in the textile field due to its good wear resistance and strength. Meanwhile, the characteristics of the nylon fiber can be well matched with the production of the down filling cloth, so that the nylon fiber is one of the main raw materials for the production of the down filling cloth.
However, the down-filled cloth is used as a fabric which is contacted with a human body for a long time, microorganisms are easy to breed, so that the surface of the textile fiber is adhered with variegated, discolored, embrittled, mildewed, damaged by worms and the like, and when the fabric is contacted with the human body, the skin infection of the human body can be caused. Enzymes secreted by microorganisms also break down human secretions, which is also one of the causes of malodour in fibrous products. Therefore, whether the fleece has better antibacterial performance is also an important factor for judging the quality of the fleece.
Disclosure of Invention
In order to prepare the down-filled cloth with good antibacterial performance, the application provides a double-line nylon black yarn double-layer down-filled cloth.
The application provides a double-line nylon black yarn double-layer down-filling cloth, which adopts the following technical scheme:
the double-line nylon black yarn double-layer down-filled cloth is prepared from antibacterial nylon slices sequentially through a melt spinning process, a finishing weaving process and a dyeing finishing process, wherein the antibacterial nylon slices comprise the following raw materials in parts by mass: 80 to 120 parts of caprolactam, 3 to 8 parts of modified nano silicon dioxide and 0.1 to 1 part of inorganic antibacterial agent; wherein the modified nano silicon dioxide is obtained by modifying nano silicon dioxide by a fluorosilane coupling agent.
By adopting the technical scheme, the modified nano silicon dioxide modified by the fluorosilane coupling agent has more fluorine groups, and the modified nano silicon dioxide is used as a carrier of the inorganic antibacterial agent; in the process of synthesizing nylon from caprolactam, the fluorine groups on the drug-carrying substance and the amide groups in the caprolactam are combined together under the action of hydrogen bonds and electrostatic combination force, so that a stable connecting structure is formed. In the process of polymerizing caprolactam to form nylon, the connecting structure has dynamic process of breaking and re-combining, and the medicine carrying matter is connected to the nylon structure in the final nylon product through fluoro radical in bonding mode, so that the medicine carrying matter may be combined with nylon stably. Meanwhile, as a plurality of amide groups in the nylon structure tend to be uniformly arranged, the drug-carrying substances also tend to be uniformly dispersed in the nylon system under the interaction trend of the fluorine groups and the amide groups, so that the antibacterial substances in the nylon are uniformly distributed.
In addition, after being modified by the fluorosilane coupling agent, the modified nano silicon dioxide has better hydrophobic, oleophobic and stain-resistant properties, is beneficial to improving the stain resistance and the waterproof effect of the finished antibacterial nylon slice, and is in accordance with the use environment of the down-filled cloth; and can reduce the condition of microorganism caused by oil stain to a certain extent. And the modified nano silicon dioxide has stable bearing effect on the inorganic filler, and the inorganic antibacterial agent is stably loaded on the modified nano silicon dioxide, so that the lasting antibacterial effect is achieved.
Preferably, the preparation method of the modified nano-silica comprises the following steps:
1) Adding nano silicon dioxide into an alcohol organic solvent, mixing and stirring to obtain a first mixture for standby;
2) Adjusting the pH value of the first mixture to 9-12, continuously stirring, adding a fluorosilane coupling agent, and continuously stirring to obtain a second mixture;
3) And regulating the pH value of the second mixture to 6-8, and then filtering and drying the second mixture after regulating the pH value to obtain the modified nano silicon dioxide.
By adopting the technical scheme, the nano silicon dioxide has better dispersing effect in the alcohol organic solvent, the fluorosilane coupling agent is utilized to interact with the nano silicon dioxide after the pH is adjusted to 9-12, and the pH of the system is adjusted to be neutral after the modification, so that the negative influence of the modified nano silicon dioxide applied to nylon is smaller.
Preferably, the alcohol organic solvent in the step 1) includes at least one of ethanol, isopropanol and isopropyl glycol.
Preferably, the particle size of the modified nano-silica is 100nm to 150nm.
By adopting the technical scheme, the modified nano silicon dioxide with the grain diameter of 100 nm-150 nm can be well dispersed in a nylon system and can well bear inorganic antibacterial agents.
Preferably, the particle size of the inorganic antibacterial agent is 10 to 30nm.
By adopting the technical scheme, the inorganic antibacterial agent with the particle size of 10-30 nm can be stably loaded on the modified nano silicon dioxide, namely has better combination stability with the modified nano silicon dioxide.
Preferably, the inorganic antibacterial agent is nano silver and nano zinc oxide according to the mass ratio of 1: (3-7).
By adopting the technical scheme, the nano silver and the nano zinc oxide have good antibacterial effect, and the nano silver and the nano zinc oxide are compounded according to the mass ratio, so that the antibacterial performance is better, and meanwhile, compared with single nano silver, the cost is lower.
Preferably, the preparation method of the antibacterial nylon slice comprises the following steps:
premixing: adding modified nano silicon dioxide and an inorganic antibacterial agent into an ethanol water solution, mixing and stirring, filtering, and drying filter residues to obtain a drug-carrying substance for later use;
melt mixing: heating and melting caprolactam, then adding a drug-carrying substance, vacuumizing to remove water, mixing and stirring to obtain a third mixture;
initiating activation: adding an alkaline initiator into the third mixture, vacuumizing and stirring until no bubbles appear, then adding an anionic ring-opening polymerization activator, and mixing and stirring to obtain a reaction solution to be polymerized;
casting and forming: casting the reaction solution to be polymerized in a preheated mold, preserving heat, naturally cooling to obtain a crude antibacterial nylon material, and finally slicing and granulating the crude antibacterial nylon material to obtain the finished antibacterial nylon slice.
By adopting the technical scheme, nylon is produced in a monomer casting mode, and the drug-carrying substance is added in the caprolactam copolymerization process, so that the interaction of fluorine groups and amide groups on the drug-carrying substance is facilitated, a relatively stable connection structure is formed, and the drug-carrying substance is uniformly dispersed in a nylon system.
Preferably, in the catalytic activation step, the molar ratio of the anionic ring-opening polymerization activator to caprolactam is (0.003 to 0.008): 1.
by adopting the technical scheme, the molar ratio of the anionic ring-opening polymerization activator to the caprolactam is controlled to be (0.003-0.008): 1, which contributes to an increase in monomer conversion.
Preferably, in the casting step, the preheated mold temperature is 150 to 180 ℃.
In summary, the present application has the following beneficial effects:
1. the nano silicon dioxide is modified by using the fluorosilane coupling agent, so that the modified nano silicon dioxide contains fluorine groups, and under the action of hydrogen bonds and electrostatic combination forces formed by the fluorine groups and amide groups, the modified nano silicon dioxide bearing the inorganic antibacterial agent can be combined on a nylon structure more stably; and a plurality of amide groups on nylon tend to be uniformly arranged, so that medicine-carrying substances interacted with the amide groups tend to be uniformly dispersed in the system, so that the prepared antibacterial nylon slice has excellent, stable and uniform antibacterial performance, and the fleece prepared by taking the antibacterial nylon slice as a raw material also has good antibacterial performance.
2. The modified nano silicon dioxide is obtained after being modified by the fluorosilane coupling agent, has the effects of hydrophobicity, oleophobicity and anti-fouling, and meets the application requirements of the down filling cloth.
3. According to the method, the inorganic antibacterial agent is used as an antibacterial active substance, and the floss-filled cloth taking the antibacterial nylon slices as raw materials has lasting antibacterial performance due to the characteristic of slow release of the inorganic antibacterial agent; and by controlling the mass ratio of the nano silver to the nano zinc oxide, the cost can be controlled while achieving better antibacterial performance.
4. In the application, the modified nano silicon dioxide is connected with the nylon in a bonding mode, so that the inorganic antibacterial agent loaded on the modified nano silicon dioxide can exist on the nylon more stably, and the situation of antibacterial active substance loss caused by water washing is reduced.
Detailed Description
The embodiment provides double-line nylon black yarn double-layer down-filled cloth, which is prepared from antibacterial nylon slices sequentially through a melt spinning process, a finishing weaving process and a dyeing after-finishing process, wherein the antibacterial nylon slices comprise the following raw materials in parts by mass: 80 to 120 parts of caprolactam, 3 to 8 parts of modified nano silicon dioxide and 0.1 to 1 part of inorganic antibacterial agent; wherein the modified nano silicon dioxide is obtained by modifying nano silicon dioxide by a fluorosilane coupling agent.
The further preferable proportion of the raw materials of the antibacterial nylon chip in the embodiment is as follows: 100 to 110 parts of caprolactam, 5 to 7 parts of modified nano silicon dioxide and 0.4 to 0.8 part of inorganic antibacterial agent.
The preparation method of the modified nano silicon dioxide in the embodiment comprises the following steps:
1) Adding nano silicon dioxide into an alcohol organic solvent, mixing and stirring to obtain a first mixture for standby;
2) Adjusting the pH value of the first mixture to 9-12, continuously stirring, adding a fluorosilane coupling agent, and continuously stirring to obtain a second mixture;
3) Adjusting the pH value of the second mixture to 6-8, and then filtering and drying the second mixture after the pH value is adjusted to obtain modified nano silicon dioxide;
wherein the alcohol organic solvent comprises at least one of ethanol, isopropanol and isopropanol glycol, and isopropanol is further preferred; the preferred pH in step 2) is 9-10; the preferred pH in step 3) is from 6 to 7.
The particle diameter of the modified nano-silica in this embodiment is 100nm to 150nm, and more preferably 120nm to 130nm.
In this embodiment, the particle size of the inorganic antimicrobial agent is 10 to 30nm, and more preferably 10 to 20nm.
In the embodiment, the inorganic antibacterial agent is nano silver and nano zinc oxide according to the mass ratio of 1: the mixture of (3-7) is further preferably 1: (5-7).
The present application will be described in further detail with reference to examples, preparations and comparative examples, and the raw materials referred to in the present application are all commercially available.
Preparation example of antibacterial nylon slice
The following is an example of preparation 1.
Preparation example 1
An antibacterial nylon slice comprises the following raw materials by mass: 100kg of caprolactam, 6kg of modified nano silicon dioxide and 0.6kg of inorganic antibacterial agent;
wherein the inorganic antibacterial agent is nano silver and nano zinc oxide according to the mass ratio of 1:6, a mixture of the components;
the particle size of the inorganic antibacterial agent is 10 nm-20 nm;
the particle size of the modified nano silicon dioxide is 120 nm-130 nm;
the modified nano silicon dioxide is obtained by modifying nano silicon dioxide by a fluorosilane coupling agent, and the specific modification steps are as follows:
1) Adding 3kg of nano silicon dioxide into 50L of isopropanol, adding 1L of deionized water, and mixing and stirring for 30min at the temperature of 40 ℃ to obtain a first mixture for later use;
2) Keeping the temperature unchanged, regulating the pH value of the first mixture to 10 by using sodium ethoxide, continuously stirring for 2 hours, and then adding 1kg of fluorosilane coupling agent for continuously stirring to obtain a second mixture;
3) Regulating the pH value of the second mixture to 6 by acetic acid, and filtering the second mixture after regulating the pH value to obtain modified nano silicon dioxide;
in the modification treatment step, the fluorosilane coupling agent is tridecafluorooctyl trimethoxy silane.
The preparation method of the antibacterial nylon slice comprises the following steps:
s1 premixing: adding modified nano silicon dioxide and an inorganic antibacterial agent into an ethanol water solution, mixing and stirring for 20min, filtering, and drying filter residues to obtain a drug-carrying substance for later use;
s2, melt mixing: heating and melting caprolactam, then adding a drug-carrying substance, vacuumizing and removing water for 15min, and then performing ultrasonic dispersion for 10min after vacuumizing to obtain a third mixture;
s3, initiating activation: adding an alkaline initiator into the third mixture, vacuumizing and stirring until bubbles do not appear any more, introducing nitrogen for protection, removing vacuum, adding an anionic ring-opening polymerization activator, mixing and stirring for 10min to obtain a reaction solution to be polymerized;
s4, casting and forming: casting the reaction solution to be polymerized in a mould preheated to 170 ℃, preserving heat for 20min, naturally cooling for 20min to obtain a crude antibacterial nylon material, and finally slicing and granulating the crude antibacterial nylon material to obtain a finished antibacterial nylon slice;
in the preparation step, the alkaline initiator is sodium hydroxide, and the molar ratio of the alkaline initiator to caprolactam is 0.005:1; the anionic ring-opening polymerization activator is toluene diisocyanate, and the molar ratio of the anionic ring-opening polymerization activator to caprolactam is 0.008:1.
Preparation example 2
The present preparation example differs from preparation example 1 in that the particle size of the modified nano-silica is 50nm to 100nm.
Preparation example 3
The present preparation example differs from preparation example 1 in that the particle size of the modified nano-silica is 200nm to 250nm.
Preparation example 4
The present preparation differs from preparation 1 in that the particle size of the inorganic antibacterial agent is 5nm to 10nm.
Preparation example 5
The present preparation differs from preparation 1 in that the particle size of the inorganic antibacterial agent is 30nm to 50nm.
Preparation example 6
The preparation example is different from the preparation example 1 in that the inorganic antibacterial agent is nano silver and nano zinc oxide according to the mass ratio of 1: 3.
Preparation example 7
The preparation example is different from the preparation example 1 in that the inorganic antibacterial agent is nano silver and nano zinc oxide according to the mass ratio of 1: 7.
Preparation example 8
The preparation example is different from the preparation example 1 in that the inorganic antibacterial agent is nano silver and nano zinc oxide according to the mass ratio of 1: 1.
Preparation example 9
The preparation example is different from the preparation example 1 in that the inorganic antibacterial agent is nano silver and nano zinc oxide according to the mass ratio of 1: 10.
Preparation example 10
The present preparation differs from preparation 1 in that the inorganic antibacterial agent is nano silver.
PREPARATION EXAMPLE 11
The present preparation differs from preparation 1 in that the inorganic antibacterial agent is nano zinc oxide.
Comparative preparation example
Comparative preparation example 1
The comparative preparation differs from preparation 1 in that no modified nanosilica is added, i.e. the inorganic antimicrobial agent is added directly during the copolymerization of caprolactam.
Comparative preparation example 2
This comparative preparation differs from preparation 1 in that the modified nanosilica is replaced by an equivalent amount of nanosilica.
Comparative preparation example 3
This comparative preparation differs from preparation 1 in that the modified nanosilica is replaced with an equivalent amount of nanosilica.
Comparative preparation example 4
The comparative preparation differs from example 1 in that no inorganic antibacterial agent is added.
Examples
Example 1
The double-line nylon black yarn double-layer down-filled cloth is prepared by sequentially carrying out a melt spinning process, a finishing weaving process and a dyeing finishing process on the antibacterial nylon slices prepared in preparation example 1, and comprises the following specific steps:
a1, melt spinning: the nylon slice is subjected to melt spinning, and then is subjected to oiling, bundling, surface coating, pre-stretching, primary stretching, secondary stretching and oxidation shaping in sequence, wherein the melt spinning temperature is 260 ℃, the pre-stretching temperature is 100 ℃, the residence time is 0.1s, the stretching multiple is 1.2, the primary stretching temperature is 70 ℃, the stretching multiple is 2.0, the secondary stretching temperature is 150 ℃, and the stretching multiple is 2.5; the oxidation setting temperature is 100 ℃, and the residence time is 0.02s; winding to obtain antibacterial nylon fiber, and texturing the antibacterial nylon fiber to obtain antibacterial nylon yarn;
a2, finishing and weaving: placing the antibacterial nylon yarn on a winder for winding, wherein the winding speed is 300m/min, the mass of a tension ring is 10g, and the winding density of a bobbin is 0.4g/cm 3 The spooling temperature is 20 ℃; warping the antibacterial nylon yarn at a warping speed of 300m/min and a winding density of 0.55g/cm 3 The method comprises the steps of carrying out a first treatment on the surface of the Sizing the warp yarns and the weft yarns after warping, wherein the sizing speed is 70m/min, the sizing groove temperature is 55 ℃, the sizing pre-drying temperature is 120 ℃, and the drying temperature is 100 ℃; weaving the warp yarn and the weft yarn subjected to sizing by an air jet loom to obtain grey cloth, wherein the loom speed is 500r/min, and the upper tension is 1800N;
a3, finishing after dyeing: dyeing, hot air drying, baking and shaping, soaping, washing and drying the grey cloth, wherein the dyeing temperature is 100 ℃, the dyeing time is 1.5 hours, the hot air drying temperature is 60 ℃, the hot air drying time is 5 minutes, the baking and shaping temperature is 150 ℃, the baking and shaping time is 2 minutes, and the soaping temperature is 70 ℃, so that the finished product of the fleece-filled cloth is obtained;
in the preparation method, in the A2 finishing and weaving step, sizing agent adopted by sizing comprises polyacrylamide, glycerol, an organosilicon softener, phosphate starch, acrylic sizing, a polyol monostearate antistatic agent and water;
wherein the down filling cloth is woven by double-layer tissues; the warp yarn adopts 20D/24F BR antibacterial nylon yarn; the weft yarn comprises a first weft yarn and a second weft yarn, wherein the first weft yarn is 20D/24F BR antibacterial nylon yarn, and the second weft yarn is N20D BL antibacterial nylon yarn; both the first weft and the second weft are black weft.
Examples 2 to 11 differ in that the antimicrobial nylon chips were prepared from different preparations, and the specific correspondence is shown in the following table:
table 1 comparison of example antimicrobial nylon chips with preparation examples
| Examples | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 |
| Preparation example | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 |
Comparative example
Comparative example 1
The present comparative example differs from example 1 in that the antimicrobial nylon chips were prepared as comparative preparation 1.
Comparative example 2
The present comparative example differs from example 1 in that the antimicrobial nylon chips were prepared as comparative preparation 2.
Comparative example 3
The present comparative example differs from example 1 in that the antimicrobial nylon chips were prepared as comparative preparation 3.
Comparative example 4
The present comparative example differs from example 1 in that an antimicrobial nylon chip was prepared as comparative preparation 4.
Performance detection test method
And (3) water washing aging treatment: the finished fleece produced in examples 1 to 11 and comparative examples 1 to 4 was cut into 20cm×20cm samples, and the finished fleece produced in examples 1 to 11 and comparative examples 1 to 4 was washed with a washing machine having a constant rotation speed under the same environment, the water addition amount per washing was 1L, the water temperature was 35 ℃, the rotation speed was 100rpm, the washing time was 20 minutes, and the antibacterial performance test was performed on the finished fleece produced in examples 1 to 11 and comparative examples 1 to 4 at the time of washing 0, 20 and 50 times, respectively, and the related data was recorded.
Antibacterial performance test: evaluation of antimicrobial Properties of textiles section 3, see GB/T20944.3-2008: vibration method, the antibacterial properties of the finished fleece produced in examples 1 to 11 and comparative examples 1 to 4 were tested, and the test species included E.coli, staphylococcus aureus and Candida albicans.
Table 2 test data table
From the detection data in table 2 and the detection results of example 1 and comparative examples 1 to 4, the modified nano silicon dioxide has more stable bearing effect on the inorganic antibacterial agent, and the drug-carrying substance formed by the modified nano silicon dioxide and the nylon system is more firmly combined with the nylon system, and the modified nano silicon dioxide still has better antibacterial performance after being washed for many times. And inorganic antibacterial agents are directly added or common nano silicon dioxide is used as a carrier of the inorganic antibacterial agents, and the antibacterial performance is greatly reduced after washing for a plurality of times.
In addition, the nano titanium dioxide is used as a carrier, and the nano titanium dioxide has an antibacterial effect, so that the nano titanium dioxide has better antibacterial effect in theory, but the data show that the antibacterial performance is inferior to that of the modified nano silicon dioxide, probably because the nano titanium dioxide has poor combination effect with a nylon system.
From the detection results of example 1 and examples 6 to 11, the antibacterial performance is better after the nano silver and the nano zinc oxide are compounded, and the ratio of the nano silver to the nano zinc is higher than the ratio of the nano silver to the nano zinc is helpful for improving the antibacterial performance to a certain extent, but the nano silver is prepared according to the mass ratio of 1 under the premise of considering the cost and the improvement range of the antibacterial performance: (3-7) the composite effect of the nano silver and the nano zinc oxide is better.
The present embodiment is merely illustrative of the present application and is not intended to be limiting, and those skilled in the art, after having read the present specification, may make modifications to the present embodiment without creative contribution as required, but is protected by patent laws within the scope of the claims of the present application.
Claims (6)
1. The double-line nylon black yarn double-layer down-filled cloth is characterized by being prepared from antibacterial nylon slices through a melt spinning process, a finishing weaving process and a dyeing after-finishing process in sequence, wherein the antibacterial nylon slices comprise the following raw materials in parts by mass: 80 to 120 parts of caprolactam, 3 to 8 parts of modified nano silicon dioxide and 0.1 to 1 part of inorganic antibacterial agent; wherein the modified nano silicon dioxide is obtained by modifying nano silicon dioxide by a fluorosilane coupling agent;
the preparation method of the modified nano silicon dioxide comprises the following steps:
1) Adding nano silicon dioxide into an alcohol organic solvent, mixing and stirring to obtain a first mixture for standby;
2) Adjusting the pH value of the first mixture to 9-12, continuously stirring, adding a fluorosilane coupling agent, and continuously stirring to obtain a second mixture;
3) Adjusting the pH value of the second mixture to 6-8, and then filtering and drying the second mixture after the pH value is adjusted to obtain modified nano silicon dioxide;
the alcohol organic solvent in the step 1) comprises at least one of ethanol, isopropanol and isopropyl glycol;
the preparation method of the antibacterial nylon slice comprises the following steps:
premixing: adding modified nano silicon dioxide and an inorganic antibacterial agent into an ethanol water solution, mixing and stirring, filtering, and drying filter residues to obtain a drug-carrying substance for later use;
melt mixing: heating and melting caprolactam, then adding a drug-carrying substance, vacuumizing to remove water, mixing and stirring to obtain a third mixture;
initiating activation: adding an alkaline initiator into the third mixture, vacuumizing and stirring until no bubbles appear, then adding an anionic ring-opening polymerization activator, and mixing and stirring to obtain a reaction solution to be polymerized;
casting and forming: casting the reaction solution to be polymerized in a preheated mold, preserving heat, naturally cooling to obtain a crude antibacterial nylon material, and finally slicing and granulating the crude antibacterial nylon material to obtain a finished antibacterial nylon slice;
modifying the nano silicon dioxide by using a fluorosilane coupling agent to enable the modified nano silicon dioxide to contain fluorine groups, and enabling the modified nano silicon dioxide loaded with an inorganic antibacterial agent to be stably combined on a nylon structure under the action of hydrogen bonds and electrostatic combination forces formed by the fluorine groups and amide groups; and a plurality of amide groups on nylon tend to be uniformly arranged, and drug-carrying substances interacted with the amide groups tend to be uniformly dispersed in the system, so that the prepared antibacterial nylon slice has excellent, stable and uniform antibacterial performance.
2. The double-nylon-black-yarn double-layer down-filling cloth according to claim 1, wherein the particle size of the modified nano-silica is 100 nm-150 nm.
3. The double-nylon black yarn double-layer fleece according to claim 1, wherein the particle size of the inorganic antibacterial agent is 10-30 nm.
4. The double-line nylon black yarn double-layer down-filled cloth according to claim 1, wherein the inorganic antibacterial agent is nano silver and nano zinc oxide according to a mass ratio of 1: (3-7).
5. The double-nylon-black yarn double-layer fleece according to claim 1, wherein in the initiating and activating step, the molar ratio of the anionic ring-opening polymerization activator to the caprolactam is (0.003-0.008): 1.
6. the double-nylon black yarn double-layer down-filled fabric according to claim 1, wherein in the casting step, the preheated mold temperature is 150-180 ℃.
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| CN103013182A (en) * | 2012-12-06 | 2013-04-03 | 常州大学 | Surface modification method of nanosilicon dioxide |
| CN105332297A (en) * | 2015-10-26 | 2016-02-17 | 江苏悦达纺织集团有限公司 | Functional nylon 66 shell fabric and manufacturing method thereof |
| CN106380593A (en) * | 2016-09-23 | 2017-02-08 | 东华大学 | Antibacterial MC (monomer casting) nylon composite material and preparation method thereof |
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| CN113062005B (en) * | 2021-03-25 | 2022-11-25 | 嘉兴学院 | Method for preparing antibacterial polyamide fiber by in-situ polymerization |
| CN113234335A (en) * | 2021-04-01 | 2021-08-10 | 国网山东省电力公司电力科学研究院 | Surface modification method of nano silicon dioxide |
| CN113547823B (en) * | 2021-06-28 | 2022-11-11 | 中国科学院青岛生物能源与过程研究所 | Wear-resistant antibacterial laminated composite board for rail transit interior decoration and preparation method thereof |
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