CN114953657A - Light breathable warm-keeping down jacket fabric and preparation method thereof - Google Patents

Light breathable warm-keeping down jacket fabric and preparation method thereof Download PDF

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Publication number
CN114953657A
CN114953657A CN202210545110.0A CN202210545110A CN114953657A CN 114953657 A CN114953657 A CN 114953657A CN 202210545110 A CN202210545110 A CN 202210545110A CN 114953657 A CN114953657 A CN 114953657A
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China
Prior art keywords
warm
fabric
preparation
down jacket
keeping
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Pending
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CN202210545110.0A
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Chinese (zh)
Inventor
吴昆明
张传贵
刘汉清
聂平
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Gaofan Zhejiang Information Technology Co Ltd
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Gaofan Zhejiang Information Technology Co Ltd
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Priority to CN202210545110.0A priority Critical patent/CN114953657A/en
Publication of CN114953657A publication Critical patent/CN114953657A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/026—Knitted fabric
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D3/00—Overgarments
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D31/00—Materials specially adapted for outerwear
    • A41D31/04—Materials specially adapted for outerwear characterised by special function or use
    • A41D31/06—Thermally protective, e.g. insulating
    • A41D31/065—Thermally protective, e.g. insulating using layered materials
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D31/00—Materials specially adapted for outerwear
    • A41D31/04—Materials specially adapted for outerwear characterised by special function or use
    • A41D31/14—Air permeable, i.e. capable of being penetrated by gases
    • A41D31/145—Air permeable, i.e. capable of being penetrated by gases using layered materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
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    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B7/04—Interconnection of layers
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    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
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    • D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B1/02—Pile fabrics or articles having similar surface features
    • D04B1/04—Pile fabrics or articles having similar surface features characterised by thread material
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    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
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    • D04B1/16—Other fabrics or articles characterised primarily by the use of particular thread materials synthetic threads
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    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
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    • D04B1/18—Other fabrics or articles characterised primarily by the use of particular thread materials elastic threads
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B3/00—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating
    • D06B3/10—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of fabrics
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    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D2400/00—Functions or special features of garments
    • A41D2400/10—Heat retention or warming
    • A41D2400/12—Heat retention or warming using temperature-controlled means
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D2500/00—Materials for garments
    • A41D2500/10—Knitted
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    • B32B2037/1215—Hot-melt adhesive
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  • Engineering & Computer Science (AREA)
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  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)

Abstract

The invention belongs to the technical field of down jacket fabric processing, and particularly relates to a light breathable warm-keeping down jacket fabric and a preparation method thereof, wherein the fabric is formed by hot-pressing and compounding a knitted base fabric and a warm-keeping layer through breathable microporous hot melt adhesives, wherein the warm-keeping layer is prepared from the following raw materials: composite fiber, modified silicon dioxide aerogel, xylene solution, adhesive and dispersant; wherein the mass ratio of the composite fiber to the modified silica aerogel is 3: 7-11; according to the invention, by using the modification effect of the composite fiber reinforced modified silica aerogel and under the combined action of physical modification and chemical modification, the thermal insulation and heat preservation characteristics of the aerogel are maintained, and the composite fiber has excellent extensibility, so that the whole fabric heat preservation layer has soft and comfortable hand feeling, the silica aerogel is not easy to fall off, and the normal wearing and use of the garment are not influenced.

Description

Light breathable warm-keeping down jacket fabric and preparation method thereof
Technical Field
The invention belongs to the technical field of down jacket fabric processing, and particularly relates to a light breathable warm-keeping down jacket fabric and a preparation method thereof.
Background
The garment is made of fabric, the fabric is the material for making the garment, and the down jacket is no exception. As one of the three elements of the clothes, the fabric not only can explain the style and the characteristics of the clothes, but also directly controls the expression effects of the color and the shape of the clothes, presents the noble and perfect performance of the fabric, and has soft hand feeling. However, in general, the high-quality and high-grade fabric of the down jacket has the characteristics of comfortable wearing, sweat absorption, air permeability, stiff and smooth suspension, noble vision, soft touch and the like. Particularly, because the cleaning frequency is relatively low, the requirements on the performances such as heat retention property and the like are more strict; most of the existing thermal fabrics for down jackets are three layers: the inner layer warm keeping velvet fabric is pasted with the waterproof breathable film, the other side of the waterproof breathable film is pasted with the functional fabric in contact with the outside, the whole fabric is thick and heavy, the warm keeping effect and the breathability are not ideal, the processing procedure is complex, and the loss is large.
Disclosure of Invention
The invention aims to provide a light breathable warm-keeping down jacket fabric and a preparation method thereof, and solves the problems of poor warm-keeping performance and poor breathable effect of the existing down jacket fabric.
The invention achieves the above purpose through the following technical scheme:
a method for preparing a light breathable warm-keeping down jacket fabric comprises the steps of compounding a knitted base fabric and a warm-keeping layer through hot pressing of breathable microporous hot melt adhesives,
wherein, the preparation raw materials of the warm-keeping layer comprise: composite fiber, modified silicon dioxide aerogel, xylene solution, adhesive and dispersant;
wherein the mass ratio of the composite fiber to the modified silica aerogel is 3: 7-11.
As a further optimized scheme of the invention, the modified silica aerogel is obtained by subjecting silica aerogel to amine modification, and the specific steps include the following:
s1: adding siloxane containing a catalyst chloroplatinic acid solution into a four-neck flask with a stirrer, a thermometer, a nitrogen introducing pipe and a dropping funnel, introducing nitrogen, stirring, and heating to 110-130 ℃;
s2: dripping polyether containing a catalyst chloroplatinic acid solution into a flask through a dropping funnel, and finishing dripping within 1.5-2.5 h; reacting at a constant temperature of 110-130 ℃ for 3-5 h, cooling, filtering and discharging to obtain transparent viscous liquid;
s3: performing ultrasonic treatment for 20min according to the volume ratio of an amine source reagent to alcohol to water being (1-3) to 6:0.2 to obtain an amino modified solution;
s4: and (3) adding the amino modified solution into the transparent viscous liquid obtained in the step (2), stirring for 20-40 min at the rotating speed of 350-450 r/min to generate wet gel, and aging and drying the wet gel to obtain the modified silicon dioxide aerogel.
As a further optimization scheme of the invention, the pore diameter of the modified silica aerogel obtained in the step 4 is 35-50 nm.
As a further optimization scheme of the invention, the amine source reagent in step 3 is one of triethylene tetramine or tetraethylene pentamine, and the alcohol is ethanol or polyethylene glycol.
As a further optimized scheme of the invention, the knitted base fabric adopts bicomponent terylene low stretch yarns with yarn count of 25D-45D and monofilament count of 20F-65F as bottom yarns, 30D/36F terylene low stretch yarns as terry yarns, 40D spandex and 30D cotton fibers are plated in the bottom yarns, and the terry grey cloth is formed by knitting through a terry machine.
As a further optimization scheme of the invention, the dispersing agent is selected from one of triethylhexyl phosphoric acid, sodium dodecyl sulfate and methyl amyl alcohol.
As a further optimization scheme of the invention, the preparation of the thermal insulation layer comprises the following steps:
s1: preparing the composite fibers into a base fabric of the heat-preservation layer;
s2: dispersing the obtained modified silicon dioxide aerogel, adhesive and dispersant in dimethylbenzene to obtain a mixed solution;
s3: and (3) soaking the base cloth of the thermal insulation layer obtained in the step one in the mixed solution obtained in the step two for 20-25h, taking out, and drying for 3h to obtain the composite fiber fabric with the modified silicon dioxide aerogel.
As a further preferable aspect of the present invention, the composite fiber is at least one selected from the group consisting of a glass fiber, a ceramic fiber, a polyimide fiber, a polyamide fiber, a polyester fiber, and a silicon carbide fiber.
A light breathable warm-keeping down jacket fabric is prepared by any one of the preparation methods.
The invention has the beneficial effects that:
1) according to the invention, by using the modification effect of the composite fiber reinforced modified silica aerogel and under the combined action of physical modification and chemical modification, the thermal insulation property of the aerogel is maintained, and the composite fiber has excellent extensibility, so that the whole fabric thermal insulation layer has soft and comfortable hand feeling, the silica aerogel is not easy to fall off, and the normal wearing and use of the garment are not influenced;
2) according to the invention, the knitted base fabric is adopted to compound the thermal insulation layer in a hot pressing manner, a double-layer composite structure is adopted, the bi-component polyester low-stretch yarns with the yarn count of 35D and the monofilament count of 50F are used as the ground yarns, the 30D/36F polyester low-stretch yarns are used as the terry yarns, and the 40D spandex and the 30D cotton fibers are plated in the ground yarns, so that the prepared fabric has good elasticity, high tensile breaking strength and good air permeability.
3) The down jacket fabric does not need multiple layers of rubberizing, the weight of the down jacket fabric is further reduced, the down jacket fabric is light and convenient to wear, and the requirements of warm keeping, comfort and the like are met.
Detailed Description
The present application is described in further detail below, and it should be noted that the following detailed description is provided for illustrative purposes only, and is not intended to limit the scope of the present application, which is defined by the appended claims.
Example 1
A method for preparing light breathable warm-keeping down jacket fabric comprises the steps of hot-pressing and compounding knitted base fabric and a warm-keeping layer through breathable microporous hot melt adhesives;
wherein, the preparation raw materials of the warm-keeping layer include: ceramic fiber, modified silica aerogel, xylene solution, adhesive and methyl amyl alcohol;
wherein the mass ratio of the ceramic fibers to the modified silica aerogel is 3: 7.
specifically, the modified silica aerogel is obtained by modifying silica aerogel through amino groups, and the specific steps comprise the following steps:
s1: adding siloxane containing catalyst chloroplatinic acid solution into a four-neck flask with a stirrer, a thermometer, a nitrogen introducing pipe and a dropping funnel, introducing nitrogen, stirring, and heating to 120 ℃;
s2: dripping polyether containing catalyst chloroplatinic acid solution into the flask through a dropping funnel for 2 h; reacting at 120 ℃ for 4h at constant temperature, cooling, filtering and discharging to obtain transparent viscous liquid;
s3: performing ultrasonic treatment for 20min according to the volume ratio of triethylene tetramine to ethanol to water of 1:6:0.2 to obtain an amino modified solution;
s4: and (3) adding the amino modified solution into the transparent viscous liquid obtained in the step (2), stirring for 30min at the rotating speed of 400r/min to generate wet gel, and aging and drying the wet gel to obtain the modified silicon dioxide aerogel with the aperture of 45 nm.
The specific knitted base fabric adopts bicomponent terylene low stretch yarn with yarn count of 35D and monofilament number of 50F as bottom yarn, 30D/36F terylene low stretch yarn as terry yarn, 40D spandex and 30D cotton fiber are plated in the bottom yarn, and the terry cloth is knitted by a terry machine.
Specifically, the preparation of the warm-keeping layer comprises the following steps:
s1: preparing the ceramic fiber into a warm-keeping layer base cloth;
s2: dispersing the obtained modified silica aerogel, adhesive and dispersant in xylene to obtain a mixed solution;
s3: and (3) soaking the base cloth of the thermal insulation layer obtained in the step one in the mixed solution obtained in the step two for 20 hours, taking out the base cloth, and drying the base cloth for 3 hours to obtain the ceramic fiber fabric with the modified silica aerogel.
Example 2
A method for preparing light breathable warm-keeping down jacket fabric comprises the steps of hot-pressing and compounding knitted base fabric and a warm-keeping layer through breathable microporous hot melt adhesives;
wherein, the preparation raw materials of the warm-keeping layer include: polyamide fiber, modified silica aerogel, xylene solution, adhesive, methyl amyl alcohol;
wherein the mass ratio of the polyamide fiber to the modified silica aerogel is 3: 9.
specifically, the modified silica aerogel is obtained by subjecting silica aerogel to amino modification, and the specific steps include the following:
s1: adding siloxane containing catalyst chloroplatinic acid solution into a four-neck flask with a stirrer, a thermometer, a nitrogen introducing pipe and a dropping funnel, introducing nitrogen, stirring, and heating to 130 ℃;
s2: dripping polyether containing catalyst chloroplatinic acid solution into a flask through a dropping funnel, and finishing dripping for 2 hours; reacting at 120 ℃ for 4 hours at constant temperature, cooling, filtering and discharging to obtain transparent viscous liquid;
s3: performing ultrasonic treatment for 20min according to the volume ratio of triethylene tetramine to ethanol to water of 2:6:0.2 to obtain an amino modified solution;
s4: and (3) adding the amino modified solution into the transparent viscous liquid obtained in the step (2), stirring for 30min at the rotating speed of 400r/min to generate wet gel, and aging and drying the wet gel to obtain the modified silicon dioxide aerogel with the aperture of 45 nm.
The specific knitted base fabric adopts bicomponent terylene low stretch yarn with yarn count of 35D and monofilament number of 50F as bottom yarn, 30D/36F terylene low stretch yarn as terry yarn, 40D spandex and 30D cotton fiber are plated in the bottom yarn, and the terry cloth is knitted by a terry machine.
Specifically, the preparation of the warm-keeping layer comprises the following steps:
s1: preparing polyamide fiber into base cloth of a heat-insulating layer;
s2: dispersing the obtained modified silica aerogel, adhesive and dispersant in xylene to obtain a mixed solution;
s3: and (3) soaking the base cloth of the thermal insulation layer obtained in the step one in the mixed solution obtained in the step two for 20 hours, taking out the base cloth, and drying the base cloth for 3 hours to obtain the polyamide fiber fabric with the modified silicon dioxide aerogel.
Example 3
A method for preparing light breathable warm-keeping down jacket fabric comprises the steps that the fabric is formed by hot-pressing and compounding knitted base fabric and a warm-keeping layer through breathable microporous hot melt adhesive;
wherein, the preparation raw materials of the warm-keeping layer include: silicon carbide fiber, modified silicon dioxide aerogel, xylene solution, adhesive and methyl amyl alcohol;
wherein the mass ratio of the polyamide fiber to the modified silica aerogel is 3: 11.
specifically, the modified silica aerogel is obtained by subjecting silica aerogel to amino modification, and the specific steps include the following:
s1: adding siloxane containing catalyst chloroplatinic acid solution into a four-neck flask with a stirrer, a thermometer, a nitrogen introducing pipe and a dropping funnel, introducing nitrogen, stirring, and heating to 110 ℃;
s2: dripping polyether containing catalyst chloroplatinic acid solution into a flask through a dropping funnel, and finishing dripping for 2 hours; reacting at 120 ℃ for 4h at constant temperature, cooling, filtering and discharging to obtain transparent viscous liquid;
s3: performing ultrasonic treatment for 20min according to the volume ratio of triethylene tetramine to ethanol to water of 3:6:0.2 to obtain an amino modified solution;
s4: and (3) adding the amino modified solution into the transparent viscous liquid obtained in the step (2), stirring for 40min at the rotating speed of 450r/min to generate wet gel, and aging and drying the wet gel to obtain the modified silicon dioxide aerogel with the aperture of 50 nm.
The specific knitted base fabric adopts bicomponent terylene low stretch yarn with yarn count of 35D and monofilament number of 50F as bottom yarn, 30D/36F terylene low stretch yarn as terry yarn, 40D spandex and 30D cotton fiber are plated in the bottom yarn, and the terry cloth is knitted by a terry machine.
Specifically, the preparation of the warm-keeping layer comprises the following steps:
s1: preparing the silicon carbide fiber into a thermal insulation layer base cloth;
s2: dispersing the obtained modified silica aerogel, adhesive and dispersant in xylene to obtain a mixed solution;
s3: and (3) soaking the base cloth of the thermal insulation layer obtained in the step one in the mixed solution obtained in the step two for 20 hours, taking out the base cloth, and drying the base cloth for 3 hours to obtain the silicon carbide fiber fabric with the modified silicon dioxide aerogel.
Comparative example 1
The preparation method of the light breathable warm-keeping down jacket fabric is basically the same as that in example 1 in raw materials and preparation method, and the only difference is that: the composite fiber in the preparation raw material of the warm-keeping layer is replaced by modified silicon dioxide aerogel with equal mass.
Comparative example 2
The preparation method of the light breathable warm-keeping down jacket fabric is basically the same as that in example 2 in raw materials and preparation method, and the only difference is that: in the preparation of the thermal insulation layer, the modified silica aerogel is replaced by the common silica aerogel.
Comparative example 3
The preparation method of the light breathable warm-keeping down jacket fabric is basically the same as that in example 3 in raw materials and preparation method, and the only difference is that: in the preparation of the thermal insulation layer, the mass ratio of the composite fiber to the modified silica aerogel is 1: 1.
The down jackets prepared in the above examples 1 to 3 and comparative examples 1 to 3 were taken as test samples, and the following tests were performed:
thermal insulation performance and test: the warmth retention property adopts the international standard ASTM D1518-2014 method for testing thermal resistance of cotton fiber system (hot plate method), and the components (suitable for cotton fiber and multi-layer cotton fiber/fabric aggregate) have thermal conductivity and range of 0.1W/m 2 ·K～1.5W/m 2 K, the thickness of the test sample is not more than 50mm), and the warm keeping property of the sample down jacket before cleaning and the warm keeping property of the sample down jacket after cleaning are tested; the air permeability is divided into 5 grades, the 1 grade is the worst, the 5 grade is the best, and the evaluation result is averaged.
Figure BDA0003651999990000081
Figure BDA0003651999990000091
As can be seen from the data in the above table, the down jacket fabric prepared in the embodiments 1 to 3 of the present invention has excellent heat retention and air permeability, and good touch feeling, the thermal insulation layer is thermally pressed and compounded by using the knitted base fabric, the double-layer composite structure is adopted, the bi-component polyester low-stretch yarns with the yarn count of 35D and the monofilament count of 50F are used as the ground yarns, the 30D/36F polyester low-stretch yarns are used as the loop yarns, and the 40D spandex and the 30D cotton fibers are plated in the ground yarns, so that the prepared fabric has good elasticity, high tensile breaking strength, and good air permeability;
specifically, the warm-keeping layer is made of modified silica aerogel infiltrated composite fibers, and the experimental results of the embodiment 1 and the comparative example 1 show that the addition of the composite fibers can improve the warm-keeping performance and the air permeability of the fabric to a certain extent, because the addition of the composite fibers can enable the mechanical property of the fabric to be higher, the higher mechanical strength can effectively resist the shrinkage and collapse of the modified silica aerogel caused by the volatilization of the organic solvent, and the influence on the density and the heat conductivity coefficient of the modified silica aerogel is smaller, so that the warm-keeping performance and the air permeability are reduced; as can be seen from the experimental results of the embodiment 2 and the comparative example 2, the thermal conductivity and the air permeability of the fabric made of the common silica aerogel are greatly reduced, because the amine group chemically modified silica aerogel used in the invention has nanometer-sized pore diameter and high porosity, and simultaneously has physical action with the composite fiber, and the modification effect is enhanced by adopting the composite fiber, the problems that the conventional modified silica aerogel is poor in stability, is easy to deform after being washed by water for many times, and the silica aerogel is easy to fall off and lose the heat retention property are solved; finally, it can be seen from the experimental results of example 3 and comparative example 3 that although the composite fiber can enhance the modification effect, the addition of a large amount affects the density and thermal conductivity properties of the silica aerogel.
Therefore, the conclusion can be drawn that the modification effect of the composite fiber reinforced modified silica aerogel is utilized, the thermal insulation and heat preservation characteristics of the aerogel are kept under the combined action of physical modification and chemical modification, the composite fiber has excellent extensibility, the whole fabric heat preservation layer has soft and comfortable hand feeling, the silica aerogel is not easy to fall off, and the normal wearing and use of the clothes are not influenced.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.

Claims (9)

1. A preparation method of a light breathable warm-keeping down jacket fabric is characterized by comprising the following steps: the fabric is formed by hot-pressing and compounding knitted base fabric and a warm-keeping layer through breathable microporous hot melt adhesive;
wherein, the preparation raw materials of the warm-keeping layer comprise: composite fiber, modified silicon dioxide aerogel, xylene solution, adhesive and dispersant;
wherein the mass ratio of the composite fiber to the modified silicon dioxide aerogel is 3: 7-11.
2. The preparation method of the light breathable warm-keeping down jacket fabric according to claim 1, characterized by comprising the following steps of: the modified silicon dioxide aerogel is obtained by modifying silicon dioxide aerogel through amino, and the specific steps comprise:
s1: adding siloxane containing a catalyst chloroplatinic acid solution into a four-neck flask with a stirrer, a thermometer, a nitrogen introducing pipe and a dropping funnel, introducing nitrogen, stirring, and heating to 110-130 ℃;
s2: dripping polyether containing a catalyst chloroplatinic acid solution into a flask through a dropping funnel, and finishing dripping within 1.5-2.5 h; reacting at a constant temperature of 110-130 ℃ for 3-5 h, cooling, filtering and discharging to obtain transparent viscous liquid;
s3: performing ultrasonic treatment for 20min according to the volume ratio of an amine source reagent to alcohol to water being (1-3) to 6:0.2 to obtain an amino modified solution;
s4: and (3) adding the amino modified solution into the transparent viscous liquid obtained in the step (2), stirring for 20-40 min at the rotating speed of 350-450 r/min to generate wet gel, and aging and drying the wet gel to obtain the modified silicon dioxide aerogel.
3. The preparation method of the light breathable warm-keeping down jacket fabric according to claim 2, characterized by comprising the following steps: the pore diameter of the modified silica aerogel obtained in the step 4 is 35-50 nm.
4. The preparation method of the light breathable warm-keeping down jacket fabric according to claim 2, characterized by comprising the following steps: in the step 3, the amine source reagent is one of triethylene tetramine or tetraethylene pentamine, and the alcohol is ethanol or polyethylene glycol.
5. The preparation method of the light breathable warm-keeping down jacket fabric according to claim 1, characterized by comprising the following steps: the knitted base fabric adopts bi-component polyester low-stretch yarns with yarn count of 25D-45D and monofilament number of 20F-65F as base yarns, 30D/36F polyester low-stretch yarns as terry yarns, 40D spandex and 30D cotton fibers are plated in the base yarns, and the terry cloth is knitted by a terry loom.
6. The preparation method of the light breathable warm-keeping down jacket fabric according to claim 1, characterized by comprising the following steps of: the dispersant is selected from one of triethyl hexyl phosphoric acid, sodium dodecyl sulfate and methyl amyl alcohol.
7. The light breathable warm-keeping down jacket fabric and the preparation method thereof according to claim 1, are characterized in that: the preparation of the warm-keeping layer comprises the following steps:
s1: preparing the composite fibers into a base fabric of the thermal insulation layer;
s2: dispersing the obtained modified silica aerogel, adhesive and dispersant in xylene to obtain a mixed solution;
s3: and (3) soaking the base fabric of the thermal insulation layer obtained in the step one in the mixed solution obtained in the step two for 20-25h, taking out, and drying for 3h to obtain the composite fiber fabric with the modified silicon dioxide aerogel.
8. The preparation method of the light breathable warm-keeping down jacket fabric according to claim 7, characterized by comprising the following steps: the composite fiber is selected from at least one of glass fiber, ceramic fiber, polyimide fiber, polyamide fiber, polyester fiber and silicon carbide fiber.
9. A lightweight, breathable and warm-keeping down jacket fabric produced by the production method of any one of claims 1 to 8.
CN202210545110.0A 2022-05-19 2022-05-19 Light breathable warm-keeping down jacket fabric and preparation method thereof Pending CN114953657A (en)

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