CN113997661A - Seamless-knitted radiation-proof down jacket and manufacturing method thereof - Google Patents

Seamless-knitted radiation-proof down jacket and manufacturing method thereof Download PDF

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Publication number
CN113997661A
CN113997661A CN202111345325.XA CN202111345325A CN113997661A CN 113997661 A CN113997661 A CN 113997661A CN 202111345325 A CN202111345325 A CN 202111345325A CN 113997661 A CN113997661 A CN 113997661A
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CN
China
Prior art keywords
layer
radiation
fabric
proof
shielding layer
Prior art date
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Pending
Application number
CN202111345325.XA
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Chinese (zh)
Inventor
陈岩
吴昆明
刘汉春
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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 CN202111345325.XA priority Critical patent/CN113997661A/en
Publication of CN113997661A publication Critical patent/CN113997661A/en
Pending legal-status Critical Current

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    • 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
    • B32B5/08—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 the fibres or filaments of a layer being of different substances, e.g. conjugate fibres, mixture of different fibres
    • 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
    • A41D31/02—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
    • 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
    • A41D31/10—Impermeable to liquids, e.g. waterproof; Liquid-repellent
    • A41D31/102—Waterproof and breathable
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    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/02—Layer formed of wires, e.g. mesh
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    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
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    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/007—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by mechanical or physical treatments
    • D06N3/0077—Embossing; Pressing of the surface; Tumbling and crumbling; Cracking; Cooling; Heating, e.g. mirror finish
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0086—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique
    • D06N3/0088—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique by directly applying the resin
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
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    • D06N3/18—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with two layers of different macromolecular materials
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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Professional, Industrial, Or Sporting Protective Garments (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Abstract

The invention belongs to the technical field of down jacket processing, and particularly relates to a seamless-knitted radiation-proof down jacket and a manufacturing method thereof, wherein the seamless-knitted radiation-proof down jacket comprises an inner shielding layer, a heat-insulating layer and an outer shielding layer which are sequentially bonded by hot melt adhesive from inside to outside, wherein the inner shielding layer is formed by weaving skin-friendly fabric and metal fibers through a flat needle; the heat-insulating layer is a down fiber layer consisting of down fibers with the average diameter of 0.3-1.2 mu m and an acrylic resin adhesive; according to the radiation-proof garment, the radiation-proof coating is coated on the inner-layer woven silver fiber coupled outer-layer fabric of the down garment, so that the radiation-proof performance of the down garment can be greatly improved, meanwhile, the wearing comfort of the down garment is not influenced by the inner-layer woven silver fiber, the radiation-proof coating of the outer layer is not easy to fall off, convenience is provided for the radiation-proof requirements of special people, the wearing comfort and the hand feeling of the garment can be improved, and the problem that the traditional radiation-proof garment is poor in hand feeling and wearing comfort is solved.

Description

Seamless-knitted radiation-proof down jacket and manufacturing method thereof
Technical Field
The invention belongs to the technical field of down jacket processing, and particularly relates to a seamless-knitted radiation-proof down jacket and a manufacturing method thereof.
Background
Electromagnetic pollution is the fourth most serious public hazard, and brings serious harm to human health, especially to pregnant women and fetuses; the conductive fiber textile is a good electromagnetic shielding material, and has the conductive and electromagnetic shielding properties of metal and the soft and breathable properties of the textile; the seamless knitted dress is a dress with three-dimensional curved surface shape made by adopting different cylinder diameter and needle number, structural organization, raw material fiber and knitting process, and the fiber yarn is utilized to produce a dress body by a loom for one time, the structural design of the seamless knitted dress is different from that of a dress made by cutting and sewing a plane fabric, and the seamless knitted dress can be not cut and sewed or the sewing thread is saved, so the seamless knitted dress is called as a one-step forming dress; compared with the common knitted fabric or woven fabric cut and sewn garment, the seamless knitted garment has almost no seams, is more close-fitting to the skin, and is comfortable and beautiful to wear.
The existing electromagnetic wave radiation prevention down jacket has low shielding efficiency and is uncomfortable to wear after finishing. In recent years, with the rapid development of the textile industry, the demand for high-tech textile garments is unprecedentedly high; textile clothes comfortable to wear are more and more popular with people, but the existing radiation-proof fabric is poor in softness and comfort, so that the fabric and the clothes are rough and hard in hand feeling and poor in wearability, later, people mix conductive and magnetic powder into coating slurry by utilizing a coating technology to develop a metal coating fabric, but the metal coating fabric is poor in air permeability, rough and hard in hand feeling and poor in wearability, the binding force between the metal coating and the fabric is small, the metal coating is easy to fall off, and the shielding efficiency of the fabric is reduced. And the production cost of the fabrics is high, so that a seamless knitted anti-radiation down jacket is urgently needed to solve the problems.
Disclosure of Invention
The invention aims to solve the problems and provides a seamless knitted radiation-proof down jacket which is simple in structure and reasonable in design and a manufacturing method thereof.
The invention realizes the purpose through the following technical scheme:
a seamless knitted anti-radiation down jacket comprises an inner shielding layer, a heat insulation layer and an outer shielding layer which are sequentially bonded by hot melt adhesive from inside to outside, wherein the inner shielding layer is formed by weaving skin-friendly fabric and metal fibers by flat needles; the heat-insulating layer is a down fiber layer consisting of down fibers with the average diameter of 0.3-1.2 mu m and an acrylic resin adhesive; the outer shielding layer is composed of a windproof fabric and a radiation-proof coating coated on the windproof fabric, and the radiation-proof coating is formed by mixing and vulcanizing silica gel, silicone oil and boron carbide particles.
As a further optimization scheme of the invention, the skin-friendly fabric is an anti-wrinkle fabric, the anti-wrinkle fabric comprises an outer layer and an inner layer, the outer layer is formed by blending 30% of nylon and 100% of polyester fibers, the inner layer is a bamboo charcoal fiber fabric, an anti-wrinkle layer is arranged between the outer layer and the inner layer, and the outer layer, the anti-wrinkle layer and the inner layer are connected through spinning lines.
As a further optimized scheme of the invention, the anti-wrinkle layer is a net-shaped structure formed by weaving polyurethane fibers.
As a further optimization scheme of the invention, the metal fibers are formed by interweaving 100% thin silver fibers with the length of 40-100 mu m.
As a further optimization scheme of the invention, the down fiber of the heat-insulating layer is distributed in a layered manner, the layer thickness is 100-.
As a further optimized scheme of the invention, the windproof fabric is a waterproof and breathable nylon fabric and a soft cotton material which are bonded through an adhesive.
As a further optimization scheme of the invention, the adhesive is JL-8261 water-based adhesive sticker.
The seamless knitted radiation-proof down jacket comprises the following steps:
s1, preparation of an inner shielding layer: the outer layer is formed by blending 30% of nylon and 100% of polyester fiber to the thickness of 2-3 mu m, the inner layer is formed by bamboo charcoal fiber fabric with the thickness of 1-2 mu m, the anti-wrinkling layer is formed by 3-5 mu m of reticular polyurethane fiber, the outer layer, the anti-wrinkling layer and the inner layer are woven through spinning threads to form skin-friendly fabric, and the obtained skin-friendly fabric is woven with 100% of thin-filament silver fiber with the length of 40-100 mu m through plain knitting to form an inner shielding layer;
s2, preparing a heat insulation layer: down fiber with the average diameter of 0.3-1.2 mu m and acrylic resin adhesive form a down fiber layer, and an insulating layer with the layer thickness of 100-;
s3, preparing a radiation-proof coating: mixing boron carbide with silica gel A with the density of 0.25ml/g and silica gel B with the density of 0.45ml/g to form a mixed solution, wherein the ratio of the silica gel A to the silica gel B is 2: 1, adding silicone oil with the density of 0.85g/cm3 into the mixed solution, and stirring in a stirrer at the rotating speed of 250-600r/min for 45-55 minutes to form a coating;
s4, preparing an outer shielding layer: selecting a nylon fabric and a pure cotton fabric to bond to obtain a windproof fabric, coating the uniformly mixed coating on the windproof fabric, putting the fabric into a vulcanizing machine with the pressure of 40-70 MPa and the temperature of 65-140 ℃ through a clamping plate, heating and vulcanizing for 80-120 min, and drying for 24h in a vacuum drying oven with the temperature of 85-100 ℃ to obtain an outer shielding layer with the coating thickness of 20-40 mu m;
s5, sequentially adhering and laminating the inner shielding layer, the heat preservation layer and the outer shielding layer through hot melt adhesive, maintaining the pressure at 1-1.5 MPa, controlling the hot melt temperature at 125-135 ℃, and cooling and drying to obtain the seamless woven radiation-proof down jacket.
The invention has the beneficial effects that:
according to the radiation-proof garment, the radiation-proof coating is coated on the inner-layer woven silver fiber coupled outer-layer fabric of the down garment, so that the radiation-proof performance of the down garment can be greatly improved, meanwhile, the wearing comfort of the down garment is not influenced by the inner-layer woven silver fiber, the radiation-proof coating of the outer layer is not easy to fall off, convenience is provided for the radiation-proof requirements of special people, the wearing comfort and the hand feeling of the garment can be improved, and the problem that the traditional radiation-proof garment is poor in hand feeling and wearing comfort is solved.
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 seamless knitted radiation-proof down jacket comprises an inner shielding layer, a heat-insulating layer and an outer shielding layer which are sequentially bonded by hot melt adhesive from inside to outside, wherein the inner shielding layer is formed by weaving skin-friendly fabric and metal fibers by flat needles; the heat-insulating layer is a down fiber layer consisting of down fibers with the average diameter of 0.8 mu m and an acrylic resin adhesive; the outer shielding layer is composed of a windproof fabric and a radiation-proof coating coated on the windproof fabric, and the radiation-proof coating is formed by mixing and vulcanizing silica gel, silicone oil and boron carbide particles.
Specifically, the skin-friendly fabric is an anti-wrinkle fabric, the anti-wrinkle fabric comprises an outer layer and an inner layer, the outer layer is formed by blending 30% of nylon and 100% of polyester fibers, the inner layer is a bamboo charcoal fiber fabric, an anti-wrinkle layer is arranged between the outer layer and the inner layer, and the outer layer, the anti-wrinkle layer and the inner layer are connected through spinning lines.
Specifically, the anti-wrinkle layer is a net structure formed by weaving polyurethane fibers.
The anti-wrinkle down jacket has the advantages that the skin-friendly fabric is set to be the anti-wrinkle fabric, so that the skin-friendly surface layer of the down jacket has good anti-wrinkle performance, the contact area between the inner layer and the skin is reduced, the moisture permeability is high, the skin-friendly fabric is soft and comfortable to wear, and the key point is that when the anti-wrinkle performance is improved, the inner layer of the fabric is prevented from wrinkling, so that the anti-radiation performance and the wearing comfort of the down jacket are reduced.
Specifically, the metal fiber is formed by interweaving 100% thin silver fibers with the length of 40 mu m.
The silver fiber is selected because the silver fiber is generally knitted fabric, has good hand feeling and elasticity and is suitable for close-fitting wearing.
Specifically, the down fibers of the heat-insulating layer are distributed in a layered manner, the layer thickness is 100 mu m, and the surface density is 150 g/m.
Specifically, the windproof fabric is made of a waterproof and breathable nylon fabric and a soft cotton material which are bonded through an adhesive.
Specifically, the adhesive is JL-8261 water-based adhesive sticker.
A seamless knitted radiation protective down jacket according to any of the above comprising the steps of:
s1, preparation of an inner shielding layer: the outer layer is formed by blending 30% of nylon and 100% of polyester fiber to the thickness of 2 microns, the inner layer is formed by bamboo charcoal fiber fabric with the thickness of 1 micron, the crease-resistant layer is formed by 3 microns of reticular polyurethane fiber, the outer layer, the crease-resistant layer and the inner layer are woven through spinning threads to form skin-friendly fabric, and the obtained skin-friendly fabric is woven with 100% of thin-filament silver fiber with the length of 40 microns through flat needles to form an inner shielding layer;
s2, preparing a heat insulation layer: forming a down fiber layer by using down fibers with the average diameter of 0.3 mu m and an acrylic resin adhesive, and forming a heat-insulating layer with the layer thickness of 100 mu m and the surface density of 150 g/m;
s3, preparing a radiation-proof coating: mixing boron carbide with silica gel A with the density of 0.25ml/g and silica gel B with the density of 0.45ml/g to form a mixed solution, wherein the ratio of the silica gel A to the silica gel B is 2: 1, adding silicone oil with the density of 0, 85g/cm3 into the mixed solution, and stirring in a stirrer at the rotating speed of 250-600r/min for 45-55 minutes to form a coating;
s4, preparing an outer shielding layer: selecting a nylon fabric and a pure cotton fabric to bond to obtain a windproof fabric, coating the uniformly mixed coating on the windproof fabric, putting the fabric into a vulcanizing machine with the pressure of 40MPa and the temperature of 65 ℃ through a clamping plate, heating and vulcanizing for 80min, and drying for 24h in a vacuum drying oven with the temperature of 85 ℃ to obtain an outer shielding layer with the coating thickness of 20 mu m;
and S5, sequentially adhering and laminating the inner shielding layer, the heat-insulating layer and the outer shielding layer through hot melt adhesive, maintaining the pressure at 1MPa and the hot melt temperature at 125 ℃, and cooling and drying to obtain the seamless-woven radiation-proof down jacket.
Example 2
A seamless knitted radiation-proof down jacket comprises an inner shielding layer, a heat-insulating layer and an outer shielding layer which are sequentially bonded by hot melt adhesive from inside to outside, wherein the inner shielding layer is formed by weaving skin-friendly fabric and metal fibers by flat needles; the heat-insulating layer is a down fiber layer consisting of down fibers with the average diameter of 0.8 mu m and an acrylic resin adhesive; the outer shielding layer is composed of a windproof fabric and a radiation-proof coating coated on the windproof fabric, and the radiation-proof coating is formed by mixing and vulcanizing silica gel, silicone oil and boron carbide particles.
Specifically, the skin-friendly fabric is an anti-wrinkle fabric, the anti-wrinkle fabric comprises an outer layer and an inner layer, the outer layer is formed by blending 30% of nylon and 100% of polyester fibers, the inner layer is a bamboo charcoal fiber fabric, an anti-wrinkle layer is arranged between the outer layer and the inner layer, and the outer layer, the anti-wrinkle layer and the inner layer are connected through spinning lines.
Specifically, the anti-wrinkle layer is a net structure formed by weaving polyurethane fibers.
Specifically, the metal fiber is formed by interweaving 100% thin silver fibers with the length of 40 mu m.
Specifically, the down fibers of the heat-insulating layer are distributed in a layered manner, the layer thickness is 100 mu m, and the surface density is 150 g/m.
Specifically, the windproof fabric is made of a waterproof and breathable nylon fabric and a soft cotton material which are bonded through an adhesive.
Specifically, the adhesive is JL-8261 water-based adhesive sticker.
A seamless knitted radiation protective down jacket according to any of the above comprising the steps of:
s1, preparation of an inner shielding layer: the outer layer is formed by blending 30% of nylon and 100% of polyester fiber to the thickness of 2 microns, the inner layer is formed by bamboo charcoal fiber fabric with the thickness of 1 micron, the crease-resistant layer is formed by 3 microns of reticular polyurethane fiber, the outer layer, the crease-resistant layer and the inner layer are woven through spinning threads to form skin-friendly fabric, and the obtained skin-friendly fabric is woven with 100% of thin-filament silver fiber with the length of 100 microns through flat needles to form an inner shielding layer;
s2, preparing a heat insulation layer: forming a down fiber layer by using down fibers with the average diameter of 0.3 mu m and an acrylic resin adhesive, and forming a heat-insulating layer with the layer thickness of 100 mu m and the surface density of 150 g/m;
s3, preparing a radiation-proof coating: mixing boron carbide with silica gel A with the density of 0.25ml/g and silica gel B with the density of 0.45ml/g to form a mixed solution, wherein the ratio of the silica gel A to the silica gel B is 2: 1, adding silicone oil with the density of 0.85g/cm3 into the mixed solution, and stirring in a stirrer at the rotating speed of 250r/min for 45-55 minutes to form a coating;
s4, preparing an outer shielding layer: selecting a nylon fabric and a pure cotton fabric to bond to obtain a windproof fabric, coating the uniformly mixed coating on the windproof fabric, putting the fabric into a vulcanizing machine with the pressure of 40MPa and the temperature of 65 ℃ through a clamping plate, heating and vulcanizing for 80min, and drying for 24h in a vacuum drying oven with the temperature of 85 ℃ to obtain an outer shielding layer with the coating thickness of 40 mu m;
and S5, sequentially adhering and laminating the inner shielding layer, the heat-insulating layer and the outer shielding layer through hot melt adhesive, maintaining the pressure at 1MPa and the hot melt temperature at 125 ℃, and cooling and drying to obtain the seamless-woven radiation-proof down jacket.
Comparative example 1
A seamless knitted radiation-proof down jacket and a preparation method thereof, the steps of which are basically the same as those of the embodiment 1, and the differences are that: the metal fibers are selected from the interweaving composition of 100% thin-filament silver fibers with the length of 30 mu m.
Comparative example 2
A seamless knitted radiation-proof down jacket and a preparation method thereof, the steps of which are basically the same as those of the embodiment 1, and the differences are that: the metal fibers are selected from the interweaving composition of 100% thin-filament silver fibers with the length of 110 mu m.
Comparative example 3
A seamless knitted radiation-proof down jacket and a preparation method thereof, the steps of which are basically the same as those of the embodiment 2, and the differences are that: the thickness of the prepared outer shielding layer is 10 μm.
Comparative example 4
A seamless knitted radiation-proof down jacket and a preparation method thereof, the steps of which are basically the same as those of the embodiment 2, and the differences are that: the thickness of the prepared outer shielding layer was 50 μm.
In order to research the heat retention and radiation protection performance of the down jackets prepared in the embodiments and the comparative examples, a YG606 flat plate type heat retention instrument is adopted for heat retention test, sample down is covered on a sample plate, the floor and the surrounding protection plates control the same temperature in an electric heating mode, data are transmitted to a microcomputer by a temperature sensor to keep the time required for keeping constant temperature, the heat retention rate is calculated, the electromagnetic radiation resistance performance test is carried out on the produced clothes by using an electromagnetic wave radiation tester, the electromagnetic shielding effectiveness of the clothes in different electromagnetic wave ranges is tested, the electromagnetic radiation test is respectively carried out on a common mobile phone and a common computer, the electromagnetic radiation test is carried out on the common clothes, and the test results are respectively: 120 mu W/cm2 and 2110 mu W/cm2, and the heat preservation rate of the common clothes without the radiation protection function is 75 percent; the softness of the down garment is measured by adopting an RH-R1000 computer softness instrument-Guangzhou Runhu instrument, Inc., under a certain test gap width, a plate-shaped measuring head moving up and down presses a sample into the gap at a constant speed for a certain depth, the vector sum of the bending resistance of the sample and the friction force between the sample and the gap is measured to represent the softness, the unit is expressed by mN, and the smaller the value is, the softer the sample is. The quality analysis of the finished product was carried out as follows:
Figure BDA0003353799750000091
it can be seen from examples 1 and 2 that the radiation shielding effect and the garment insulation rate can be improved by weaving silver fibers in the inner layer and coating the outer shielding layer on the outer layer of the down garment, and the length of the silver fibers is reduced to 30 μm compared with example 1 by using comparative example 1, so that the electromagnetic radiation is obviously increased; compared with the embodiment 1, the comparative example 2 has the advantages that the length of the silver fibers is increased to 110 mu m, the radiation resistance is obviously improved, but the obtained down garment has higher hardness and poorer flexibility in hand feeling, and the inner layer is poorer in comfort due to the fact that the inner layer adopts the silver fibers of the filaments; the comparative example 3, in which the thickness of the outer shield layer was reduced to 20 μm as compared with that of example 2, was remarkably reduced in radiation resistance; compared with the shielding layer of the example 2, the thickness of the shielding layer of the comparative example 4 is increased to 50 μm, the radiation resistance is obviously increased, but as compared with the comparative example 2, the hardness is higher, the flexibility is poorer, and the wearing comfort of the prepared down garment is poorer, so that the radiation resistance of the down garment can be improved by weaving the silver fiber coupling outer layer fabric with the thickness of 40-100 μm on the inner layer of the down garment and coating the radiation-proof coating with the thickness of 20-40 μm on the outer layer fabric, and meanwhile, the wearing comfort and the hand feeling of the garment can be increased.
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 (8)

1. The utility model provides a radiation protection down coat of seamless weaving, includes by interior shielding layer, heat preservation, the outer shielding layer that inside to outside loops through the hot melt adhesive bonding, its characterized in that: the inner shielding layer is formed by weaving skin-friendly fabric and metal fibers through flat needles; the heat-insulating layer is a down fiber layer which consists of down fibers with the average diameter of 0.3-1.2 mu m and an acrylic resin adhesive; the outer shielding layer is composed of a windproof fabric and a radiation-proof coating coated on the windproof fabric, and the radiation-proof coating is formed by mixing and vulcanizing silica gel, silicone oil and boron carbide particles.
2. The radiation-proof seamless knitted down jacket as claimed in claim 1, wherein the skin-friendly fabric is an anti-wrinkle fabric, the anti-wrinkle fabric comprises an outer layer and an inner layer, the outer layer is formed by blending 30% of nylon and 100% of polyester fibers, the inner layer is a bamboo charcoal fiber fabric, the anti-wrinkle layer is arranged between the outer layer and the inner layer, and the outer layer, the anti-wrinkle layer and the inner layer are connected through spinning threads.
3. The radiation protective seamless knitted down jacket according to claim 2 wherein the wrinkle resistant layer is a net structure knitted from polyurethane fibers.
4. The radiation protective seamless knitted down jacket according to claim 1 wherein said metal fibers are of interwoven 100% thin silver fibers having a length of 40-100 μm.
5. The radiation-proof seamless knitted down jacket as claimed in claim 1, wherein the down fibers of the insulating layer are distributed in layers, the layer thickness is 100-.
6. The radiation protective seamless knitted down jacket as claimed in claim 1, wherein: the windproof fabric is made of waterproof and breathable nylon fabric and soft cotton material which are bonded through an adhesive.
7. The radiation protective seamless knitted down jacket as claimed in claim 6, wherein: the adhesive is JL-8261 water-based adhesive sticker.
8. The radiation protective seamless knitted down jacket according to any one of claims 1 to 7 wherein: the method comprises the following steps:
s1, preparation of an inner shielding layer: the outer layer is formed by blending 30% of nylon and 100% of polyester fiber to the thickness of 2-3 mu m, the inner layer is formed by bamboo charcoal fiber fabric with the thickness of 1-2 mu m, the anti-wrinkling layer is formed by 3-5 mu m of reticular polyurethane fiber, the outer layer, the anti-wrinkling layer and the inner layer are woven through spinning threads to form skin-friendly fabric, and the obtained skin-friendly fabric is woven with 100% of thin-filament silver fiber with the length of 40-100 mu m through plain knitting to form an inner shielding layer;
s2, preparing a heat insulation layer: down fiber with the average diameter of 0.3-1.2 mu m and acrylic resin adhesive form a down fiber layer, and an insulating layer with the layer thickness of 100-;
s3, preparing a radiation-proof coating: mixing boron carbide with silica gel A with the density of 0.25ml/g and silica gel B with the density of 0.45ml/g to form a mixed solution, wherein the ratio of the silica gel A to the silica gel B is 2: 1, adding silicone oil with the density of 0.85g/cm3 into the mixed solution, and stirring in a stirrer at the rotating speed of 250-600r/min for 45-55 minutes to form a coating;
s4, preparing an outer shielding layer: selecting a nylon fabric and a pure cotton fabric to bond to obtain a windproof fabric, coating the uniformly mixed coating on the windproof fabric, putting the fabric into a vulcanizing machine with the pressure of 40-70 MPa and the temperature of 65-140 ℃ through a clamping plate, heating and vulcanizing for 80-120 min, and drying for 24h in a vacuum drying oven with the temperature of 85-100 ℃ to obtain an outer shielding layer with the coating thickness of 20-40 mu m;
s5, sequentially adhering and laminating the inner shielding layer, the heat preservation layer and the outer shielding layer through hot melt adhesive, maintaining the pressure at 1-1.5 MPa, controlling the hot melt temperature at 125-135 ℃, and cooling and drying to obtain the seamless woven radiation-proof down jacket.
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