CN109944084A - A kind of waterproof and breathable shell fabric and preparation method thereof - Google Patents
A kind of waterproof and breathable shell fabric and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a kind of waterproof and breathable shell fabrics, the functional film including comfortable inner layer and coated on comfortable layer surfaces, wherein functional film with a thickness of 60-80um；The waterproof and breathable shell fabric is made of following steps: the preparation of the first step, comfortable inner layer；The preparation of coating used in second step, functional film；Third step, the surface that coating used in functional film is evenly applied to comfortable inner layer.Fabric of the invention includes comfortable inner layer and the functional film coated on layer surfaces, and comfortable inner layer is fabricated using first synthetic fibre fiber and modified viscose fiber, so that comfortable inner layer has the performances such as ventilative, comfortable and easy to wear, fire-retardant；Functional film is using polyethers copolymerization acetyl polyimide resin as film matrix, and it joined modified manometer silicon dioxide, so that film porosity on the basis of keeping good hydrophobic performance increases, it ensure that the gas permeability of film, the problem of ventilative and waterproof has been solved perfectly, is a kind of novel fabric of health environment-friendly.
Description
Technical field
The invention belongs to technical field of textile fabric, and in particular, to a kind of waterproof and breathable shell fabric and preparation method thereof.
Background technique
As the requirement of people's year quality of the life is higher and higher, garment material not only to meet masking and aesthetics is wanted
It asks, while also should be to wear more comfortably.On the basis of clothes basic function is constant, people more and more focus on clothing
To the health-care effect of body, with the development of science and technology with the raising of living standards of the people, for the demand of the safety of fabric
Constantly expand, people have higher requirement to the functionality of garment material, comfort, health, the feature of environmental protection and health.No
Various effects of different materials, are added in dress material using technique appropriate, increase clothing by the new material of disconnected research and development clothes
The functionality of clothes.
Currently, waterproof and breathable lamination fabric has become the hot spot of textile product research and development, in functional textile fabric,
Waterproof and breathable laminate surface material is that difficulty is larger, the higher product of technology content.Fabric currently on the market is with waterproofing function
Impermeable rainwater function, it is to increase coating on the surface of polyester fabric, thus reduce the gas permeability of fabric mostly, feels when wearing
Feel sultry, and the warmth retention property of its internal layer and comfort are poor.Develop Water-proof breathable fabric that is better, meeting the market requirement
Have and its important meaning.
Summary of the invention
The purpose of the present invention is to provide a kind of waterproof and breathable shell fabric and preparation method thereof, which includes comfortable inner layer
With the functional film for being coated on comfortable layer surfaces, comfortable inner layer is fabricated using first synthetic fibre fiber and modified viscose fiber,
So that comfortable inner layer has the performances such as ventilative, comfortable and easy to wear, fire-retardant；Functional film is copolymerized the conduct of acetyl polyimide resin using polyethers
Film matrix, and joined modified manometer silicon dioxide, so that film porosity on the basis of keeping good hydrophobic performance
Increase, ensure that the gas permeability of film, meanwhile, the mechanical property and durability of film are preferable；Fabric obtained can make in structure
Portion's steam is discharged rapidly, and structure is avoided to multiply mould, and keeps human body dry and comfortable always, and ventilative asking with waterproof has been solved perfectly
Topic, is a kind of novel fabric of health environment-friendly.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of waterproof and breathable shell fabric, the functional film including comfortable inner layer and coated on comfortable layer surfaces, wherein
Functional film with a thickness of 60-80 μm；
The waterproof and breathable shell fabric is made of following steps:
The preparation of the first step, comfortable inner layer:
Select line density be 1.67dtex, the first synthetic fibre fiber and modified viscose fiber that length is 51mm, according to matching for 50:50
Than being spun into the yarn of 55s/2, using plain weave, being weaved, be made into comfortable inner layer, surface density 95g/m2；
The preparation of coating used in second step, functional film:
Coating used in the functional film is made of following raw material: 16-20 parts of acetyl polyimide resin of polyethers copolymerization,
3-4 parts of modified manometer silicon dioxide, 160-200 parts of n-butanol；
Coating used in the functional film is made of following steps:
(1) polyethers copolymerization acetyl polyimide resin is dissolved in n-butanol, is configured to base fluid；
(2) modified manometer silicon dioxide is added in prepared base fluid, stirring, ultrasound are vacuumized to being uniformly dispersed
Deaeration obtains coating used in functional film；
Third step, the surface that coating used in functional film is evenly applied to comfortable inner layer are placed in 60 DEG C of baking ovens and do
Waterproof and breathable shell fabric is made in dry 6-7h.
Further, the modified viscose fiber is prepared by the following method:
(1) pH value of rayon spinning stoste is adjusted using the HCL aqueous solution of 0.1mol/L to 6-7, and phosphoric acid, 100r/ is added
Sodium carboxymethylcellulose is added after min stirring 20min, continues stirring to being completely dissolved；
(2) vacuum standing and defoaming obtains composite spinning solution for 24 hours, and composite spinning liquid obtained is squeezed by spinneret
It is solidified into silk in coagulating bath, stretches 1.5 times, modified viscose fiber is made after washing, 115 DEG C of dryings and winding；
Wherein, the group of coagulating bath becomes sulfuric acid 90g/L, sodium sulphate 300g/L, zinc sulfate 15g/L, 60 DEG C of coagulation bath temperature-
70 DEG C, bathe long 1.9-2.1m.
Further, the mass ratio of the rayon spinning stoste, sodium carboxymethylcellulose and phosphoric acid is 100:3-4:
0.6-0.7。
Further, the modified manometer silicon dioxide is prepared by the following method:
(1) ethyl orthosilicate of 6mL is added in 12mL dehydrated alcohol, it is 2mol/ that 1.2mL concentration, which is then added dropwise,
Mixed solution is persistently stirred 4h in 55 DEG C of water-baths, is cooled to room temperature by the HCl solution of L, and being slow added into 0.5mL concentration is
The ammonia spirit of 2mol/L, is stirred at room temperature 5h；
(2) 0.6mL dimethyl diethoxysilane is added dropwise again, reacts 22h under 55 DEG C of constant temperatures, by what is obtained
Product toluene and dehydrated alcohol are washed respectively, are centrifuged 3 times, and modified manometer silicon dioxide is made in drying.
A kind of preparation method of waterproof and breathable shell fabric, includes the following steps:
The preparation of the first step, comfortable inner layer:
Select line density be 1.67dtex, the first synthetic fibre fiber and modified viscose fiber that length is 51mm, according to matching for 50:50
Than being spun into the yarn of 55s/2, using plain weave, being weaved, be made into comfortable inner layer, surface density 95g/m2；
The preparation of coating used in second step, functional film:
Coating used in the functional film is made of following raw material: 16-20 parts of acetyl polyimide resin of polyethers copolymerization,
3-4 parts of modified manometer silicon dioxide, 160-200 parts of n-butanol；
Coating used in the functional film is made of following steps:
(1) polyethers copolymerization acetyl polyimide resin is dissolved in n-butanol, is configured to base fluid；
(2) modified manometer silicon dioxide is added in prepared base fluid, stirring, ultrasound are vacuumized to being uniformly dispersed
Deaeration obtains coating used in functional film；
Third step, the surface that coating used in functional film is evenly applied to comfortable inner layer are placed in 60 DEG C of baking ovens and do
Waterproof and breathable shell fabric is made in dry 6-7h.
Further, weaving parameters are as follows in the first step: through density be 236/10cm, weft density is 212/10cm.
Beneficial effects of the present invention:
The inner layer of fabric of the invention is fabricated using modified viscose fiber and first synthetic fibre fiber, and it is fine that viscose rayon belongs to regeneration
Cellulose fiber has the characteristics that good air permeability and comfortable and easy to wear, but haves the defects that breaking strength is not high enough；Pass through carboxylic first
Base sodium cellulosate and phosphoric acid are modified processing to viscose rayon, and in composite spinning liquid, phosphoric acid molecules are distributed in carboxymethyl cellulose
Between plain sodium molecule chain, after spinning by heating with sodium carboxymethylcellulose strand on hydroxyl occur dehydration condensation from
And realize the crosslinking between sodium carboxymethylcellulose strand, the chemical crosslinking point of the fibrous inside after crosslinking increases, most end form
At cross-linked network structure, cross-linked network can be passed through when molecule segment is acted on by extraneous stress, structure generates stress dispersion, from
And it is improved the breaking strength of fiber；First synthetic fibre fiber is that had using the polyimide fiber of dry spinning technology production
Excellent fire-retardant, heat-insulated, high temperature resistance, oxygen index (OI) 38 belong to fireproof fibre；By by modified viscose fiber and first synthetic fibre fiber
The fabric being woven into has the performances such as ventilative, comfortable and easy to wear, fire-retardant；
The present invention is coated with functional film on the surface of comfortable inner layer, and polyethers copolymerization acetyl polyimide resin itself has well
Hydrophobicity, as film matrix be coated on comfortable inner layer when, can assign fabric good waterproof performance；Modified Nano two
The partial size of silica superfine and huge specific surface area, so that its macromolecular chain that can be deep into polyethers copolymerization acetyl polyimide resin
Amide groups near, surface coordination has stronger activity insufficient for modified manometer silicon dioxide, so as to amide groups
On the lone pair electrons that provide of N atom bonding action occurs, improve intermolecular bonding force, macromolecular chain connection promoted to reticulate
Structure, to improve the ultimate strength of functional film；The high fluidity and small size of modified manometer silicon dioxide spheric granules
Effect, be conducive to mitigate macromolecular chain between be adhered effect, to improve its elongation at break；Typically, since coating holes
Gap is much smaller than the hole of base fabric, and therefore, coating plays restriction effect, modified nano-silica to the permeability of entire coated fabric
The addition of SiClx to increase the porosity of coating, improves its gas permeability so that form hole between particle and high polymer；Again
Person, modified manometer silicon dioxide are distributed in the reticular structure of high polymer, play the role of supporting point, hinder polymer segment
Be mutually adhered, be also beneficial to improve the porosity of coating, meanwhile, the modified manometer silicon dioxide for constituting particle intermolecular is also deposited
In gap, the porosity and gas permeability of coating, therefore the addition of the modified manometer silicon dioxide of scientific matching are further improved,
The permeability of functional film can be significantly improved；
Fabric of the invention includes comfortable inner layer and the functional film coated on comfortable layer surfaces, and comfortable inner layer uses
First synthetic fibre fiber and modified viscose fiber are fabricated, so that comfortable inner layer has the performances such as ventilative, comfortable and easy to wear, fire-retardant；Function
Property film using polyethers copolymerization acetyl polyimide resin as film matrix, and joined modified manometer silicon dioxide, so that film exists
Keep porosity on the basis of good hydrophobic performance to increase, ensure that the gas permeability of film, meanwhile, the mechanical property of film and
Durability is preferable；Fabric obtained can be such that inside configuration steam is discharged rapidly, and structure is avoided to multiply mould, and keep human body always
Dry and comfortable, the problem of ventilative and waterproof has been solved perfectly, be a kind of novel fabric of health environment-friendly.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with embodiment, it is clear that described reality
Applying example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is general
Logical technical staff all other embodiment obtained without creative efforts belongs to what the present invention protected
Range.
A kind of waterproof and breathable shell fabric, the functional film including comfortable inner layer and coated on comfortable layer surfaces, wherein
Functional film with a thickness of 60-80um；
The comfortable inner layer is prepared by the following method:
Select line density be 1.67dtex, the first synthetic fibre fiber and modified viscose fiber that length is 51mm, according to matching for 50:50
Than, be spun into the yarn of 55s/2, using plain weave, weaved, through density be 236/10cm, weft density be 212/
10cm is made into comfortable inner layer, surface density 95g/m2；
Wherein, modified viscose fiber is prepared by the following method:
(1) using the pH value of the HCL aqueous solution adjusting rayon spinning stoste with 0.1mol/L to 6-7, phosphoric acid is added,
Sodium carboxymethylcellulose is added after 100r/min stirring 20min, continues stirring to being completely dissolved；
(2) vacuum standing and defoaming obtains composite spinning solution for 24 hours, and composite spinning liquid obtained is squeezed by spinneret
It is solidified into silk in coagulating bath, stretches 1.5 times, modified viscose fiber is made after washing, 115 DEG C of dryings and winding；Coagulating bath
Group become sulfuric acid 90g/L, sodium sulphate 300g/L, zinc sulfate 15g/L, 60 DEG C -70 DEG C of coagulation bath temperature, bathe long 1.9-2.1m；
Wherein, the mass ratio of rayon spinning stoste, sodium carboxymethylcellulose and phosphoric acid is 100:3-4:0.6-0.7；
Viscose rayon category regenerated celulose fibre has the characteristics that good air permeability and comfortable and easy to wear, but there is fracture
The not high enough defect of intensity；Processing is modified to viscose rayon by sodium carboxymethylcellulose and phosphoric acid, in composite spinning liquid,
Phosphoric acid molecules are distributed between sodium carboxymethylcellulose strand, by heating and sodium carboxymethylcellulose strand after spinning
Hydroxyl dehydration condensation occurs to realize crosslinking between sodium carboxymethylcellulose strand, the fibrous inside after crosslinking
Chemical crosslinking point increase, ultimately form cross-linked network structure, when molecule segment by extraneous stress act on when can by crosslinking
Network, structure generates stress dispersion, so that the breaking strength of fiber be made to be improved；
First synthetic fibre fiber is that have excellent fire-retardant, heat-insulated, resistance to height using the polyimide fiber of dry spinning technology production
Warm nature energy, oxygen index (OI) 38 belong to fireproof fibre；By by modified viscose fiber and first synthetic fibre fibrous woven at fabric, tool
There are the performances such as ventilative, comfortable and easy to wear, fire-retardant；
The functional film is made of following raw material: polyethers is copolymerized 16-20 parts of acetyl polyimide resin, modified Nano
3-4 parts of silica, 160-200 parts of n-butanol；
The functional film is made of following steps:
(1) polyethers copolymerization acetyl polyimide resin is dissolved in n-butanol, is configured to base fluid；
(2) modified manometer silicon dioxide is added in prepared base fluid, stirring, ultrasound are vacuumized to being uniformly dispersed
Deaeration obtains functional coating；
(3) functional coating is evenly applied to the surface of comfortable inner layer, is placed in 60 DEG C of baking ovens dry 6-7h；
Polyethers copolymerization acetyl polyimide resin itself has good hydrophobicity, is coated on comfortable inner layer as film matrix
When, it can assign fabric good waterproof performance；The partial size of modified manometer silicon dioxide superfine and huge specific surface area, so that
Near the amide groups of its macromolecular chain that can be deep into polyethers copolymerization acetyl polyimide resin, surface coordination is insufficient for modified Nano
Silica has stronger activity, and bonding action occurs for the lone pair electrons so as to provide with the N atom on amide groups, improves
Intermolecular bonding force promotes macromolecular chain to connect into reticular structure, to improve the ultimate strength of functional film；Modification is received
Rice spherical high fluidity and small-size effect, be conducive to mitigate macromolecular chain between be adhered effect, thus
Improve its elongation at break；Typically, since coating porosity is much smaller than the hole of base fabric, therefore, coating knits entire coating
The permeability of object plays restriction effect, the addition of modified manometer silicon dioxide so that form hole between particle and high polymer, from
And the porosity of coating is increased, improve its gas permeability；Furthermore modified manometer silicon dioxide is distributed in the reticular structure of high polymer
In, play the role of supporting point, hinder mutually being adhered for polymer segment, is also beneficial to improve the porosity of coating, meanwhile,
The modified manometer silicon dioxide of composition particle is intermolecular, and there is also gaps, further improve the porosity and gas permeability of coating,
Therefore the addition of the modified manometer silicon dioxide of scientific matching, can significantly improve the permeability of functional film；
The preparation of modified manometer silicon dioxide:
(1) ethyl orthosilicate of 6mL (TEOS) is added in 12mL dehydrated alcohol, 1.2mL concentration is then added dropwise
For the HCl solution of 2mol/L, mixed solution is persistently stirred into 4h in 55 DEG C of water-baths, room temperature is cooled to, is slow added into 0.5mL
Concentration is the ammonia spirit of 2mol/L, and 5h is stirred at room temperature；
(2) 0.6mL dimethyl diethoxysilane is added dropwise again, reacts 22h under 55 DEG C of constant temperatures, by what is obtained
Product toluene and dehydrated alcohol are washed respectively, are centrifuged 3 times, and modified manometer silicon dioxide is made in drying；
Dimethyl diethoxysilane by the hydroxyl reactive grafting in silica surface on silica, it is this
Organic segment increases dispersibility of the nano silica in film matrix, is conducive to prepare uniform functional film painting
Material, while also improving the physically or chemically effect between polyethers copolymerization acetyl polyimide resin and silica dioxide granule；Furthermore dioxy
SiClx grafting is reacted with the hydroxyl of silica surface, and the hydroxyl (hydrophilic radical) of silica surface is reduced
Quantity, so that the waterproof performance of functional film is improved, in addition, in the vinyltriethoxysilane of silica surface grafting
Ethyl-silicone can with fiber-reactive, formed chemical bonding and durability is provided so that functional film has durability, no
It destructible and washes away.
Embodiment 1
The preparation of modified viscose fiber:
(1) pH value of rayon spinning stoste is adjusted using the HCL aqueous solution of 0.1mol/L to 6-7, and phosphoric acid, 100r/ is added
Sodium carboxymethylcellulose is added after min stirring 20min, continues stirring to being completely dissolved；
(2) vacuum standing and defoaming obtains composite spinning solution for 24 hours, and composite spinning liquid obtained is squeezed by spinneret
It is solidified into silk in coagulating bath, stretches 1.5 times, modified viscose fiber is made after washing, 115 DEG C of dryings and winding；Coagulating bath
Group become sulfuric acid 90g/L, sodium sulphate 300g/L, zinc sulfate 15g/L, 65 DEG C of coagulation bath temperature, bathe long 2m；
Wherein, the mass ratio of rayon spinning stoste, sodium carboxymethylcellulose and phosphoric acid is 100:3:0.6.
Embodiment 2
The preparation of modified manometer silicon dioxide:
(1) ethyl orthosilicate of 6mL is added in 12mL dehydrated alcohol, it is 2mol/ that 1.2mL concentration, which is then added dropwise,
Mixed solution is persistently stirred 4h in 55 DEG C of water-baths, is cooled to room temperature by the HCl solution of L, and being slow added into 0.5mL concentration is
The ammonia spirit of 2mol/L, is stirred at room temperature 5h；
(2) 0.6mL dimethyl diethoxysilane is added dropwise again, reacts 22h under 55 DEG C of constant temperatures, by what is obtained
Product toluene and dehydrated alcohol are washed respectively, are centrifuged 3 times, and modified manometer silicon dioxide is made in drying.
Embodiment 3
A kind of waterproof and breathable shell fabric is made of following steps:
The preparation of the first step, comfortable inner layer:
The modified viscose fiber that line density is 1.67dtex, prepared by the first synthetic fibre fiber that length is 51mm and embodiment 1 is selected,
According to the proportion of 50:50, it is spun into the yarn of 55s/2, using plain weave, is weaved, comfortable inner layer is made into, is through density
236/10cm, weft density be 212/10cm, surface density 95g/m2；
The preparation of coating used in second step, functional film:
Coating used in the functional film is made of following raw material: polyethers is copolymerized 16 parts of acetyl polyimide resin, reality
Apply 3 parts of modified manometer silicon dioxide, 160 parts of the n-butanol of the preparation of example 2；
Coating used in the functional film is made of following steps:
(1) polyethers copolymerization acetyl polyimide resin is dissolved in n-butanol, is configured to base fluid；
(2) modified manometer silicon dioxide is added in prepared base fluid, stirring, ultrasound are vacuumized to being uniformly dispersed
Deaeration obtains coating used in functional film；
Third step, the surface that coating used in functional film is evenly applied to comfortable inner layer are placed in 60 DEG C of baking ovens and do
Dry 6h, be made waterproof and breathable shell fabric, functional film with a thickness of 60 μm.
Embodiment 4
A kind of waterproof and breathable shell fabric is made of following steps:
The preparation of the first step, comfortable inner layer:
The modified viscose fiber that line density is 1.67dtex, prepared by the first synthetic fibre fiber that length is 51mm and embodiment 1 is selected,
According to the proportion of 50:50, it is spun into the yarn of 55s/2, using plain weave, is weaved, comfortable inner layer is made into, is through density
236/10cm, weft density be 212/10cm, surface density 95g/m2；
The preparation of coating used in second step, functional film:
Coating used in the functional film is made of following raw material: polyethers is copolymerized 18 parts of acetyl polyimide resin, reality
Apply 3.5 parts of modified manometer silicon dioxide, 180 parts of the n-butanol of the preparation of example 2；
Coating used in the functional film is made of following steps:
(1) polyethers copolymerization acetyl polyimide resin is dissolved in n-butanol, is configured to base fluid；
(2) modified manometer silicon dioxide is added in prepared base fluid, stirring, ultrasound are vacuumized to being uniformly dispersed
Deaeration obtains coating used in functional film；
Third step, the surface that coating used in functional film is evenly applied to comfortable inner layer are placed in 60 DEG C of baking ovens and do
Dry 6.5h, be made waterproof and breathable shell fabric, functional film with a thickness of 70 μm.
Embodiment 5
A kind of waterproof and breathable shell fabric is made of following steps:
The preparation of the first step, comfortable inner layer:
The modified viscose fiber that line density is 1.67dtex, prepared by the first synthetic fibre fiber that length is 51mm and embodiment 1 is selected,
According to the proportion of 50:50, it is spun into the yarn of 55s/2, using plain weave, is weaved, comfortable inner layer is made into, is through density
236/10cm, weft density be 212/10cm, surface density 95g/m2；
The preparation of coating used in second step, functional film:
Coating used in the functional film is made of following raw material: polyethers is copolymerized 20 parts of acetyl polyimide resin, reality
Apply 4 parts of modified manometer silicon dioxide, 200 parts of the n-butanol of the preparation of example 2；
Coating used in the functional film is made of following steps:
(1) polyethers copolymerization acetyl polyimide resin is dissolved in n-butanol, is configured to base fluid；
(2) modified manometer silicon dioxide is added in prepared base fluid, stirring, ultrasound are vacuumized to being uniformly dispersed
Deaeration obtains coating used in functional film；
Third step, the surface that coating used in functional film is evenly applied to comfortable inner layer are placed in 60 DEG C of baking ovens and do
Dry 7h, be made waterproof and breathable shell fabric, functional film with a thickness of 80 μm.
Comparative example 1
Change modified viscose fiber made from embodiment 1 into common viscose fiber, remaining is consistent with embodiment 3.
Comparative example 2
On the basis of embodiment 3, it is added without the modified manometer silicon dioxide of the preparation of embodiment 2.
Comparative example 3
On the basis of embodiment 3, changes modified viscose fiber into common viscose fiber, be added without modified nano-silica
Silicon.
Comparative example 4
Common commercially available knitting fabric.
Following performance test is done to the fabric of embodiment 3-5 and comparative example 1-4:
(1) according to GB/T 3923.1-2013 " textile fabric tensile property part 1: ultimate strength and extension at break
The measurement (galley proof method) of rate ", the ultimate strength and elongation of the composite coating of preparation are tested；GB/ is respectively adopted
Standard method and contact angle method as defined in T4745-2012 " detection and evaluation of textile water proof performance get wet method ", to fabric
Waterproof performance is tested；According to GB/T 5453-1997 " measurement of textile fabric gas permeability ", to the permeability of fabric
It is detected, test result is as follows table 1:
Table 1
It is found that the ultimate strength for the fabric that embodiment 3-5 is prepared reaches 32.5-33.1N, elongation at break reaches
388-392% illustrates that the mechanical property of fabric prepared by the present invention is good, in conjunction with comparative example 1 (common viscose fiber), illustrates to be modified
The addition of viscose rayon can be improved the ultimate strength and elongation at break of fabric；The fabric that embodiment 3-5 is prepared is stained with
Water grade is 5 grades, water contact angle is 156-158 °, illustrates that fabric waterproof prepared by the present invention can be good, in conjunction with comparative example 2
(modified manometer silicon dioxide is not added) illustrates that the addition of modified manometer silicon dioxide is not only able to improve the hydrophobicity of fabric
Can, and mechanical strength can be enhanced；The fabric air penetrability that embodiment 3-5 is prepared is 34.9-35.2mm/s, in conjunction with comparison
Example 2 and 3, illustrates fabric good permeability prepared by the present invention, and the addition of nano silica can increase gas permeability；
(2) cotton fabric after arrangement is dipped in 2g/L soap lye, bath raio 1:30, stirring is soaped 10min at 40 DEG C, and clear water is washed
2min, it is determined as once washing washs different numbers respectively and is placed on 90 DEG C of drying in baking oven, carries out the test of water contact angle, survey
Test result such as the following table 2:
Table 2
| 5 times | 15 times | 25 times | 35 times | |
| Embodiment 3 | 150 | 146 | 139 | 132 |
| Embodiment 4 | 151 | 148 | 142 | 133 |
| Embodiment 5 | 151 | 147 | 141 | 134 |
| Comparative example 2 | 116 | 101 | 88 | 75 |
It is found that the water contact angle of the fabric of embodiment 3-5 preparation reaches 132-134 ° after 25 washings, illustrate this
The wash durability for inventing the fabric being prepared is good, has durability.
Present invention disclosed above preferred embodiment is only intended to help to illustrate the present invention.There is no detailed for preferred embodiment
All details are described, are not limited the invention to the specific embodiments described.Obviously, according to the content of this specification,
It can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to better explain the present invention
Principle and practical application, so that skilled artisan be enable to better understand and utilize the present invention.The present invention is only
It is limited by claims and its full scope and equivalent.
Claims (6)
1. a kind of waterproof and breathable shell fabric, which is characterized in that the functionality including comfortable inner layer and coated on comfortable layer surfaces
Film, wherein functional film with a thickness of 60-80 μm；
The waterproof and breathable shell fabric is made of following steps:
The preparation of the first step, comfortable inner layer:
To select line density be 1.67dtex, the first synthetic fibre fiber and modified viscose fiber that length is 51mm, according to the proportion of 50:50,
It is spun into the yarn of 55s/2, using plain weave, is weaved, comfortable inner layer, surface density 95g/m are made into2；
The preparation of coating used in second step, functional film:
Coating used in the functional film is made of following raw material: polyethers is copolymerized 16-20 parts of acetyl polyimide resin, is modified
3-4 parts of nano silica, 160-200 parts of n-butanol；
Coating used in the functional film is made of following steps:
(1) polyethers copolymerization acetyl polyimide resin is dissolved in n-butanol, is configured to base fluid；
(2) modified manometer silicon dioxide being added in prepared base fluid, stirring, ultrasound are to being uniformly dispersed, vacuumizing and defoaming,
Obtain coating used in functional film；
Third step, the surface that coating used in functional film is evenly applied to comfortable inner layer are placed in 60 DEG C of baking ovens dry 6-
Waterproof and breathable shell fabric is made in 7h.
2. a kind of waterproof and breathable shell fabric according to claim 1, which is characterized in that the modified viscose fiber is by as follows
Method preparation:
(1) pH value of rayon spinning stoste is adjusted using the HCL aqueous solution of 0.1mol/L to 6-7, phosphoric acid is added, 100r/min is stirred
Sodium carboxymethylcellulose is added after mixing 20min, continues stirring to being completely dissolved；
(2) vacuum standing and defoaming obtains composite spinning solution for 24 hours, and composite spinning liquid obtained is squeezed into solidification by spinneret
It is solidified into silk in bath, stretches 1.5 times, modified viscose fiber is made after washing, 115 DEG C of dryings and winding；
Wherein, the group of coagulating bath become sulfuric acid 90g/L, sodium sulphate 300g/L, zinc sulfate 15g/L, 60 DEG C -70 of coagulation bath temperature
DEG C, bathe long 1.9-2.1m.
3. a kind of waterproof and breathable shell fabric according to claim 2, which is characterized in that the rayon spinning stoste, carboxylic first
The mass ratio of base sodium cellulosate and phosphoric acid is 100:3-4:0.6-0.7.
4. a kind of waterproof and breathable shell fabric according to claim 1, which is characterized in that the modified manometer silicon dioxide by
Following method preparation:
(1) ethyl orthosilicate of 6mL is added in 12mL dehydrated alcohol, it is 2mol/L's that 1.2mL concentration, which is then added dropwise,
Mixed solution is persistently stirred 4h in 55 DEG C of water-baths, is cooled to room temperature by HCl solution, and being slow added into 0.5mL concentration is
The ammonia spirit of 2mol/L, is stirred at room temperature 5h；
(2) 0.6mL dimethyl diethoxysilane is added dropwise again, reacts 22h under 55 DEG C of constant temperatures, the product that will be obtained
It washed, be centrifuged 3 times respectively with toluene and dehydrated alcohol, dried, modified manometer silicon dioxide is made.
5. a kind of preparation method of waterproof and breathable shell fabric, which comprises the steps of:
The preparation of the first step, comfortable inner layer:
To select line density be 1.67dtex, the first synthetic fibre fiber and modified viscose fiber that length is 51mm, according to the proportion of 50:50,
It is spun into the yarn of 55s/2, using plain weave, is weaved, comfortable inner layer, surface density 95g/m are made into2；
The preparation of coating used in second step, functional film:
Coating used in the functional film is made of following raw material: polyethers is copolymerized 16-20 parts of acetyl polyimide resin, is modified
3-4 parts of nano silica, 160-200 parts of n-butanol；
Coating used in the functional film is made of following steps:
(1) polyethers copolymerization acetyl polyimide resin is dissolved in n-butanol, is configured to base fluid；
(2) modified manometer silicon dioxide being added in prepared base fluid, stirring, ultrasound are to being uniformly dispersed, vacuumizing and defoaming,
Obtain coating used in functional film；
Third step, the surface that coating used in functional film is evenly applied to comfortable inner layer are placed in 60 DEG C of baking ovens dry 6-
Waterproof and breathable shell fabric is made in 7h.
6. a kind of preparation method of waterproof and breathable shell fabric according to claim 5, which is characterized in that weaved in the first step
Parameter is as follows: through density be 236/10cm, weft density is 212/10cm.
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