CN107237157A - A kind of preparation method of aqueous polyurethane/superfine fibre composite - Google Patents
A kind of preparation method of aqueous polyurethane/superfine fibre composite Download PDFInfo
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- CN107237157A CN107237157A CN201710243243.1A CN201710243243A CN107237157A CN 107237157 A CN107237157 A CN 107237157A CN 201710243243 A CN201710243243 A CN 201710243243A CN 107237157 A CN107237157 A CN 107237157A
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- 239000002131 composite material Substances 0.000 title claims abstract description 69
- 239000000835 fiber Substances 0.000 title claims abstract description 53
- 239000004814 polyurethane Substances 0.000 title claims abstract description 42
- 229920002635 polyurethane Polymers 0.000 title claims abstract description 40
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 17
- 239000002994 raw material Substances 0.000 claims abstract description 15
- 239000006260 foam Substances 0.000 claims abstract description 3
- 239000000463 material Substances 0.000 claims description 111
- 238000001035 drying Methods 0.000 claims description 76
- 238000007598 dipping method Methods 0.000 claims description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- 238000004140 cleaning Methods 0.000 claims description 15
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 claims description 14
- 239000002253 acid Substances 0.000 claims description 14
- 239000007788 liquid Substances 0.000 claims description 14
- 235000010413 sodium alginate Nutrition 0.000 claims description 14
- 229940005550 sodium alginate Drugs 0.000 claims description 14
- 239000000661 sodium alginate Substances 0.000 claims description 14
- 239000004744 fabric Substances 0.000 claims description 12
- 239000004088 foaming agent Substances 0.000 claims description 7
- 238000007654 immersion Methods 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 26
- 230000006378 damage Effects 0.000 abstract description 10
- 241000894006 Bacteria Species 0.000 abstract description 8
- 208000027418 Wounds and injury Diseases 0.000 abstract description 8
- 208000014674 injury Diseases 0.000 abstract description 8
- 238000011109 contamination Methods 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 description 8
- 239000002002 slurry Substances 0.000 description 7
- 238000005187 foaming Methods 0.000 description 5
- 230000003020 moisturizing effect Effects 0.000 description 5
- 238000010926 purge Methods 0.000 description 5
- 230000001954 sterilising effect Effects 0.000 description 5
- 238000004659 sterilization and disinfection Methods 0.000 description 5
- 206010061592 cardiac fibrillation Diseases 0.000 description 4
- 230000002600 fibrillogenic effect Effects 0.000 description 4
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 239000010985 leather Substances 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- 230000015271 coagulation Effects 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 230000007786 learning performance Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
Classifications
-
- 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
- D06N3/04—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
-
- 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
- D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
- D06N3/0004—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using ultra-fine two-component fibres, e.g. island/sea, or ultra-fine one component fibres (< 1 denier)
-
- 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
- D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
- D06N3/0011—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using non-woven fabrics
-
- 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
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
- D06N3/14—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes
-
- 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
- D06N3/18—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
- D06N3/183—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 the layers are one next to the other
-
- 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
- D06N2209/00—Properties of the materials
- D06N2209/16—Properties of the materials having other properties
- D06N2209/1671—Resistance to bacteria, mildew, mould, fungi
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The present invention relates to a kind of preparation method of aqueous polyurethane/superfine fibre composite, its step is as follows：1) PVA is pre-processed；2) WPU foams；3) film process.The problem of present invention had both been solved the DMF pollutions in the production of PU/MF composites and remained using above-mentioned technique productions, solve and used using the product of above-mentioned existing composite production in long-time again, and even if using free of contamination raw material produce composite product also easily produce bacterium to human body using certain injury is caused the problem of.
Description
Technical field
The present invention relates to composite processing field, and in particular to a kind of aqueous polyurethane/superfine fibre composite
Preparation method.
Background technology
Polyurethane (PU)/usual W sea-island fibres non-woven cloth of superfine fibre (MF) composite is base material, molten by proofing
Formulation PU slurries, subsequently into ＂ into 0-DMF ＂ coagulating baths, obtain PU/ sea-island fibre composites, are finally opened using liquidation
It is prepared by fibre.At present, the superfine fiber chemical leather that this materials of W are produced as base fabric, microstructure is similar to natural leather, and
With good physical property and application performance, as the optimal material for substituting natural leather.However, due to PU/MF composite woods
Environment is not only polluted as solvent using substantial amounts of Er Jia Ji Jia Ugly amine (DMF) in the production of material, and can be residual in finished product
Stay.For these key issues, the aqueous polyurethane of this problem (WPU) is prepared for WPU/MF composites, in detail as proofing material
The thin technology of preparing that have studied WPU/MF, has inquired into the structure and performance of WPU/MF composites.Main research and result
It is as follows：PU/MF composites are research object, have studied the change of structure and performance during PU/MF composite processings, are visited
PU/MF composite structures and the correlation of performance are begged for.Test result indicates that：PU/MF composites by；Tie up interweave MF and
PU obturators with microcellular structure are composited, the perforate degree and MF of release degree, PU obturators between MF and PU obturators
Decentralization be to influence the principal element of PU/MF composite materials properties and sanitation performance.
Using sea-island fibre non-woven cloth as base material, convection drying after proofing WPU slurries obtains WPU/ sea-island fibre composite woods
Material, obtains WPU/MF composites, preparation technology, microstructure and the property for having ground ingeniously WPU/MF composites finally by fibrillation
Energy.Test result indicates that；The WPU/MF composites obtained using Ju Li Women alcohol (PVA) pre-treating technology have preferably release
Structure, is conducive to improving the combination property of composite；WPU proofing amount has very big shadow to the combination property of composite
Ring；Compared with PU/MF composites, WPU/MF composites have more preferable sanitation performance.
Using sea-island fibre non-woven cloth as base material, convection drying after proofing WPU foamed slurries obtains WPU/ sea-island fibres and answered
Condensation material, WPU/MF composites are obtained finally by fibrillation, have studied preparation technology, the microstructure of WPU/MF composites
And performance.Test result indicates that：The expansion ratio of proofing slurry is to the microstructure of WPU/MF composites, sanitation performance and power
Learning performance has large effect, and when expansion ratio is 180%, the combination property of WPU/MF composites is preferable；With not sending out
The WPU slurry proofing techniques of bubble are compared, and gained WPU/MF composites have more preferable sanitation performance and feel, but its mechanical property
Can be relatively poor.
Using sea-island fibre non-woven cloth as base material, proofing WPU foamed slurries, then in polymetallicacetate (SLA) solution
Middle wet coagulation obtains WPU/ sea-island fibre composites, finally by fibrillation, and I obtains WPU/MF composites, have studied
The preparation technology of WPU/MF composites, microstructure and properties.Test result indicates that：Wet coagulation process advan is in raising
WPU/MF composites for learn performance, expansion ratio for 180% foamed slurry proofing by PVA handle sea-island fibre it is non-
Woven cloths, solidify in 1.5% SLA solution, then handle obtained WPU/MF composites by fibrillation, not only with good
Feel, and with preferable mechanical property and sanitation performance.
In summary, the result of study of this problem provides new thinking and technology for the preparation of WPU/MF composites,
And the preparation for WPU superfine fiber chemical leathers provides theoretical foundation and support.The application of the technology, it is possible to resolve PU/MF is combined
DMF pollutions and residue problem in material production.
But although existing WPU/MF composites solve the problem of polluting and remain, but use above-mentioned composite wood
Expect that the product of production is used in long-time, and also hold even if the product using free of contamination raw material progress production composite
Bacterium is also easy to produce to human body using causing certain injury.
The content of the invention
It is an object of the invention to provide a kind of preparation method of aqueous polyurethane/superfine fibre composite, possesses antibacterial
Property.
To achieve these goals, the technical solution adopted by the present invention is：
A kind of preparation method of aqueous polyurethane/superfine fibre composite, its step is as follows：
1) PVA is pre-processed
Sea-island fibre non-woven cloth is completely infused in PVA solution first, dip time is 1-2 hours, dipping temperature
For 20-25 DEG C；Material after dipping is once drained into solution, and carries out in infrared-ray dryer first drying, first drying
Temperature is 85-90 DEG C；The material after first drying is transferred in rinse bath again and soaked 30-45 minutes using 45 DEG C of water, then
Drain the material after immersion is secondary；Material after secondary drain is transferred in infrared-ray dryer and carries out secondary drying, two
80-85 DEG C of the temperature of secondary drying；45-60 is washed in the water logging that material after secondary drying is transferred into 70-78 DEG C of progress in rinse bath
Minute, material drain for three times, three drying, the temperature 80-85 of three drying are then carried out using infrared-ray dryer
℃；
2) WPU foams
Material after three drying in step 1 is transferred in WPU foaming agents and impregnated, dip time is 30-45 points
Clock, the material after dipping is transferred in infrared-ray dryer and dried；
3) film process
Material after being dried in step 2 is transferred into film liquid and impregnated, and pickup is the 20% of material to be impregnated, leaching
The stain time is 1-2h；Material after dipping is transferred in rinse bath and cleaned, the cleaning temperature in rinse bath is 80-85 DEG C, will
Material after cleaning, which is pulled out, to be drained, and is transferred in dryer to be dried and be can obtain aqueous polyurethane/superfine fibre composite wood
Material.
Further, step 1 is soak time 35 minutes, and first drying temperature is 86 DEG C, and secondary drying temperature is 80 DEG C,
Three drying temperatures are 83 DEG C.
Further, dip time is 35 minutes in step 2, and the temperature of drying is 45-60 DEG C, and drying time is 45 points
Clock.
Further, step 3 dip time is that the cleaning temperature in 1.5h, rinse bath is 80 DEG C.
Further, the parts by weight of raw materials into film liquid is 20-30 parts of corter pseudolaricis acid solution, 20-25 parts of sodium alginate soln.
Further, the mass concentration of corter pseudolaricis acid solution is 3-5%.
Further, the mass concentration of sodium alginate soln is 3-4%.
Advantage of the present invention is：The DMF in the production of PU/MF composites was both solved using above-mentioned technique productions to pollute and residual
The problem of staying, is solved and is used using the product of above-mentioned existing composite production in long-time, even and if using without dirt again
The raw material of dye carry out production composite product also easily produce bacterium to human body using certain injury is caused the problem of.
Embodiment
The present invention is described in further details below in conjunction with embodiment.
Embodiment 1
PVA first is pre-processed：Sea-island fibre non-woven cloth is completely infused in PVA solution first, dip time is 1 small
When, dipping temperature is 20 DEG C；Material after dipping is once drained into solution, and carries out in infrared-ray dryer first drying,
First drying temperature is 85 DEG C；The material after first drying is transferred in rinse bath again and soaked 30 minutes using 45 DEG C of water,
Drain again by the material after immersion is secondary；Material after secondary drain is transferred in infrared-ray dryer and carries out secondary drying,
80 DEG C of the temperature of secondary drying；The water logging that material after secondary drying is transferred into 70 DEG C of progress in rinse bath is washed 45 minutes, will
Material drain for three times, then carries out three drying using infrared-ray dryer, and 80 DEG C of the temperature of three drying is once cleaned
The fibre gap of further increase material is prevented, unnecessary PVA can be diluted and cleaned；And prevent from directly using HIGH TEMPERATURE PURGE to break
Bad fibre gap；Secondary embathe can further wash unnecessary PVA；
Secondly WPU foaming：Material after three times are dried, which is transferred in WPU foaming agents, to be impregnated, and dip time is 30
Minute, the material after dipping is transferred in infrared-ray dryer and dried, drying time is 45 minutes；
Last film process：Material after drying is transferred into film liquid and impregnated, and pickup is material to be impregnated
20%, dip time is 1h；Material after dipping is transferred in rinse bath and cleaned, the cleaning temperature in rinse bath is 80 DEG C,
Material after cleaning is pulled out and drained, be transferred in dryer dried can obtain aqueous polyurethane/superfine fibre be combined
Material, the parts by weight of raw materials into film liquid is 20 parts of corter pseudolaricis acid solution, 20 parts of sodium alginate soln；The quality of corter pseudolaricis acid solution
Concentration is 3-5%；The mass concentration of sodium alginate soln is 3%, the pliability of exhibit material, moisturizing, and drying and heat are repaired in sterilization
The fiber damaged during water.
The problem of both having been solved the DMF pollutions in the production of PU/MF composites using above-mentioned technique productions and remained, solves again
Determine and used using the product of above-mentioned existing composite production in long-time, even and if being carried out using free of contamination raw material
Produce composite product also easily produce bacterium to human body using certain injury is caused the problem of.
Embodiment 2
PVA first is pre-processed：Sea-island fibre non-woven cloth is completely infused in PVA solution first, dip time is 1.1
Hour, dipping temperature is 21 DEG C；Material after dipping is once drained into solution, and once dried in infrared-ray dryer
Dry, first drying temperature is 86 DEG C；The material after first drying is transferred in rinse bath again and soaks 36 points using 45 DEG C of water
Clock, then drain the material after immersion is secondary；Material after secondary drain is transferred in infrared-ray dryer and carries out secondary baking
It is dry, 81 DEG C of the temperature of secondary drying；The water logging that material after secondary drying is transferred into 73 DEG C of progress in rinse bath is washed 46 minutes,
Material drain for three times, then carrying out three times using infrared-ray dryer dries, 81 DEG C of the temperature of three drying, once clearly
Washing prevents the fibre gap of further increase material, can dilute unnecessary PVA and clean；And prevent from directly using HIGH TEMPERATURE PURGE
Destroy fibre gap；Secondary embathe can further wash unnecessary PVA；
Secondly WPU foaming：Material after three times are dried, which is transferred in WPU foaming agents, to be impregnated, and dip time is 36
Minute, the material after dipping is transferred in infrared-ray dryer and dried, drying time is 45 minutes；
Last film process：Material after drying is transferred into film liquid and impregnated, and pickup is material to be impregnated
20%, dip time is 1.2h；Material after dipping is transferred in rinse bath and cleaned, the cleaning temperature in rinse bath is 81
DEG C, the material after cleaning is pulled out and drained, is transferred in dryer and is dried that to can obtain aqueous polyurethane/superfine fibre multiple
Condensation material, the parts by weight of raw materials into film liquid is 21 parts of corter pseudolaricis acid solution, 21 parts of sodium alginate soln；The matter of corter pseudolaricis acid solution
It is 3.5% to measure concentration；The mass concentration of sodium alginate soln be 3%, the pliability of exhibit material, moisturizing, sterilization, repair drying and
The fiber damaged during hot water.
The problem of both having been solved the DMF pollutions in the production of PU/MF composites using above-mentioned technique productions and remained, solves again
Determine and used using the product of above-mentioned existing composite production in long-time, even and if being carried out using free of contamination raw material
Produce composite product also easily produce bacterium to human body using certain injury is caused the problem of.
Embodiment 3
PVA first is pre-processed：Sea-island fibre non-woven cloth is completely infused in PVA solution first, dip time is 1.5
Hour, dipping temperature is 21 DEG C；Material after dipping is once drained into solution, and once dried in infrared-ray dryer
Dry, first drying temperature is 86 DEG C；The material after first drying is transferred in rinse bath again and soaks 38 points using 45 DEG C of water
Clock, then drain the material after immersion is secondary；Material after secondary drain is transferred in infrared-ray dryer and carries out secondary baking
It is dry, 81 DEG C of the temperature of secondary drying；The water logging that material after secondary drying is transferred into 73 DEG C of progress in rinse bath is washed 51 minutes,
Material drain for three times, then carrying out three times using infrared-ray dryer dries, 83 DEG C of the temperature of three drying, once clearly
Washing prevents the fibre gap of further increase material, can dilute unnecessary PVA and clean；And prevent from directly using HIGH TEMPERATURE PURGE
Destroy fibre gap；Secondary embathe can further wash unnecessary PVA；
Secondly WPU foaming：Material after three times are dried, which is transferred in WPU foaming agents, to be impregnated, and dip time is 38
Minute, the material after dipping is transferred in infrared-ray dryer and dried, drying time is 45 minutes；
Last film process：Material after drying is transferred into film liquid and impregnated, and pickup is material to be impregnated
20%, dip time is 1.2；Material after dipping is transferred in rinse bath and cleaned, the cleaning temperature in rinse bath is 82 DEG C,
Material after cleaning is pulled out and drained, be transferred in dryer dried can obtain aqueous polyurethane/superfine fibre be combined
Material, the parts by weight of raw materials into film liquid is 25 parts of corter pseudolaricis acid solution, 23 parts of sodium alginate soln；The quality of corter pseudolaricis acid solution
Concentration is 4%；The mass concentration of sodium alginate soln is 3%, the pliability of exhibit material, moisturizing, and drying and hot water are repaired in sterilization
When the fiber that damages.
The problem of both having been solved the DMF pollutions in the production of PU/MF composites using above-mentioned technique productions and remained, solves again
Determine and used using the product of above-mentioned existing composite production in long-time, even and if being carried out using free of contamination raw material
Produce composite product also easily produce bacterium to human body using certain injury is caused the problem of.
Embodiment 4
PVA first is pre-processed：Sea-island fibre non-woven cloth is completely infused in PVA solution first, dip time is 1.8
Hour, dipping temperature is 24 DEG C；Material after dipping is once drained into solution, and once dried in infrared-ray dryer
Dry, first drying temperature is 89 DEG C；The material after first drying is transferred in rinse bath again and soaks 42 points using 45 DEG C of water
Clock, then drain the material after immersion is secondary；Material after secondary drain is transferred in infrared-ray dryer and carries out secondary baking
It is dry, 84 DEG C of the temperature of secondary drying；The water logging that material after secondary drying is transferred into 76 DEG C of progress in rinse bath is washed 58 minutes,
Material drain for three times, then carrying out three times using infrared-ray dryer dries, 84 DEG C of the temperature of three drying, once clearly
Washing prevents the fibre gap of further increase material, can dilute unnecessary PVA and clean；And prevent from directly using HIGH TEMPERATURE PURGE
Destroy fibre gap；Secondary embathe can further wash unnecessary PVA；
Secondly WPU foaming：Material after three times are dried, which is transferred in WPU foaming agents, to be impregnated, and dip time is 32
Minute, the material after dipping is transferred in infrared-ray dryer and dried, drying time is 45 minutes；
Last film process：Material after drying is transferred into film liquid and impregnated, and pickup is material to be impregnated
20%, dip time is 1.8h；Material after dipping is transferred in rinse bath and cleaned, the cleaning temperature in rinse bath is 84
DEG C, the material after cleaning is pulled out and drained, is transferred in dryer and is dried that to can obtain aqueous polyurethane/superfine fibre multiple
Condensation material, the parts by weight of raw materials into film liquid is 28 parts of corter pseudolaricis acid solution, 24 parts of sodium alginate soln；The matter of corter pseudolaricis acid solution
It is 4.5% to measure concentration；The mass concentration of sodium alginate soln is 3.5%, the pliability of exhibit material, moisturizing, and drying is repaired in sterilization
The fiber damaged during with hot water.
The problem of both having been solved the DMF pollutions in the production of PU/MF composites using above-mentioned technique productions and remained, solves again
Determine and used using the product of above-mentioned existing composite production in long-time, even and if being carried out using free of contamination raw material
Produce composite product also easily produce bacterium to human body using certain injury is caused the problem of.
Embodiment 5
PVA first is pre-processed：Sea-island fibre non-woven cloth is completely infused in PVA solution first, dip time is 2 small
When, dipping temperature is 25 DEG C；Material after dipping is once drained into solution, and carries out in infrared-ray dryer first drying,
First drying temperature is 90 DEG C；The material after first drying is transferred in rinse bath again and soaked 45 minutes using 45 DEG C of water,
Drain again by the material after immersion is secondary；Material after secondary drain is transferred in infrared-ray dryer and carries out secondary drying,
85 DEG C of the temperature of secondary drying；The water logging that material after secondary drying is transferred into 78 DEG C of progress in rinse bath is washed 60 minutes, will
Material drain for three times, then carries out three drying using infrared-ray dryer, and 85 DEG C of the temperature of three drying is once cleaned
The fibre gap of further increase material is prevented, unnecessary PVA can be diluted and cleaned；And prevent from directly using HIGH TEMPERATURE PURGE to break
Bad fibre gap；Secondary embathe can further wash unnecessary PVA；
Secondly WPU foaming：Material after three times are dried, which is transferred in WPU foaming agents, to be impregnated, and dip time is 45
Minute, the material after dipping is transferred in infrared-ray dryer and dried, drying time is 45 minutes；
Last film process：Material after drying is transferred into film liquid and impregnated, and pickup is material to be impregnated
20%, dip time is 2h；Material after dipping is transferred in rinse bath and cleaned, the cleaning temperature in rinse bath is 85 DEG C,
Material after cleaning is pulled out and drained, be transferred in dryer dried can obtain aqueous polyurethane/superfine fibre be combined
Material, the parts by weight of raw materials into film liquid is 30 parts of corter pseudolaricis acid solution, 25 parts of sodium alginate soln；The quality of corter pseudolaricis acid solution
Concentration is 5%；The mass concentration of sodium alginate soln is 4%, the pliability of exhibit material, moisturizing, and drying and hot water are repaired in sterilization
When the fiber that damages.
The problem of both having been solved the DMF pollutions in the production of PU/MF composites using above-mentioned technique productions and remained, solves again
Determine and used using the product of above-mentioned existing composite production in long-time, even and if being carried out using free of contamination raw material
Produce composite product also easily produce bacterium to human body using certain injury is caused the problem of.
Claims (7)
1. the preparation method of a kind of aqueous polyurethane/superfine fibre composite, it is characterised in that its step is as follows：
1) PVA is pre-processed
Sea-island fibre non-woven cloth is completely infused in PVA solution first, dip time is 1-2 hours, and dipping temperature is 20-
25℃；Material after dipping is once drained into solution, and carries out in infrared-ray dryer first drying, first drying temperature is
85-90℃；The material after first drying is transferred in rinse bath again and soaked 30-45 minutes using 45 DEG C of water, then will immersion
Rear material is secondary to be drained；Material after secondary drain is transferred in infrared-ray dryer and carries out secondary drying, secondary drying
80-85 DEG C of temperature；The water logging that material after secondary drying is transferred into 70-78 DEG C of progress in rinse bath is washed 45-60 minutes, will
Material drain for three times, then carries out three drying, 80-85 DEG C of the temperature of three drying using infrared-ray dryer；
2) WPU foams
Material after three drying in step 1 is transferred in WPU foaming agents and impregnated, dip time is 30-45 minutes, will
Material after dipping, which is transferred in infrared-ray dryer, is dried；
3) film process
Material after being dried in step 2 is transferred into film liquid and impregnated, and pickup is the 20% of material to be impregnated, during dipping
Between be 1-2h；Material after dipping is transferred in rinse bath and cleaned, the cleaning temperature in rinse bath is 80-85 DEG C, will be cleaned
Material afterwards, which is pulled out, to be drained, and is transferred in dryer to be dried and be can obtain aqueous polyurethane/superfine fibre composite.
2. a kind of preparation method of aqueous polyurethane/superfine fibre composite according to claim 1, its feature exists
In：Step 1 is soak time 35 minutes, and first drying temperature is 86 DEG C, and secondary drying temperature is 80 DEG C, and three times drying temperature is
83℃。
3. a kind of preparation method of aqueous polyurethane/superfine fibre composite according to claim 1, its feature exists
In：Dip time is 35 minutes in step 2, and the temperature of drying is 45-60 DEG C, and drying time is 45 minutes.
4. a kind of preparation method of aqueous polyurethane/superfine fibre composite according to claim 1, its feature exists
In：Step 3 dip time is that the cleaning temperature in 1.5h, rinse bath is 80 DEG C.
5. a kind of preparation method of aqueous polyurethane/superfine fibre composite according to claim 1, its feature exists
In：Parts by weight of raw materials into film liquid is 20-30 parts of corter pseudolaricis acid solution, 20-25 parts of sodium alginate soln.
6. a kind of preparation method of aqueous polyurethane/superfine fibre composite according to claim 5, its feature exists
In：The mass concentration of corter pseudolaricis acid solution is 3-5%.
7. a kind of preparation method of aqueous polyurethane/superfine fibre composite according to claim 5, its feature exists
In：The mass concentration of sodium alginate soln is 3-4%.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112981978A (en) * | 2021-02-04 | 2021-06-18 | 福建省莆田市协龙鞋业有限公司 | High-color-fastness leather for leather casual shoes and preparation method thereof |
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