CN106868880A - A kind of aqueous polyurethane imitates woven fabric and its manufacture method - Google Patents
A kind of aqueous polyurethane imitates woven fabric and its manufacture method Download PDFInfo
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- CN106868880A CN106868880A CN201710229614.0A CN201710229614A CN106868880A CN 106868880 A CN106868880 A CN 106868880A CN 201710229614 A CN201710229614 A CN 201710229614A CN 106868880 A CN106868880 A CN 106868880A
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- woven fabric
- aqueous polyurethane
- manufacture method
- imitates
- imitative
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- 239000002759 woven fabric Substances 0.000 title claims abstract description 84
- 229920002635 polyurethane Polymers 0.000 title claims abstract description 79
- 239000004814 polyurethane Substances 0.000 title claims abstract description 79
- 238000000034 method Methods 0.000 title claims abstract description 48
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 36
- 229920005989 resin Polymers 0.000 claims abstract description 38
- 239000011347 resin Substances 0.000 claims abstract description 38
- 239000007788 liquid Substances 0.000 claims abstract description 24
- 238000007711 solidification Methods 0.000 claims abstract description 24
- 230000008023 solidification Effects 0.000 claims abstract description 24
- 239000004744 fabric Substances 0.000 claims abstract description 21
- 230000008569 process Effects 0.000 claims abstract description 13
- 238000005470 impregnation Methods 0.000 claims abstract description 9
- 238000000227 grinding Methods 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 23
- 239000002585 base Substances 0.000 claims description 16
- 239000002562 thickening agent Substances 0.000 claims description 11
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 10
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 7
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 6
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 4
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 claims description 4
- 239000001110 calcium chloride Substances 0.000 claims description 4
- 229910001628 calcium chloride Inorganic materials 0.000 claims description 4
- 239000003431 cross linking reagent Substances 0.000 claims description 4
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000004310 lactic acid Substances 0.000 claims description 3
- 235000014655 lactic acid Nutrition 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 2
- 125000001931 aliphatic group Chemical group 0.000 claims description 2
- 239000003513 alkali Substances 0.000 claims description 2
- 125000003118 aryl group Chemical group 0.000 claims description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 claims description 2
- FBAFATDZDUQKNH-UHFFFAOYSA-M iron chloride Chemical compound [Cl-].[Fe] FBAFATDZDUQKNH-UHFFFAOYSA-M 0.000 claims description 2
- RUTXIHLAWFEWGM-UHFFFAOYSA-H iron(3+) sulfate Chemical compound [Fe+3].[Fe+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O RUTXIHLAWFEWGM-UHFFFAOYSA-H 0.000 claims description 2
- 229910000360 iron(III) sulfate Inorganic materials 0.000 claims description 2
- 239000011780 sodium chloride Substances 0.000 claims description 2
- 230000008961 swelling Effects 0.000 claims description 2
- 229920005749 polyurethane resin Polymers 0.000 abstract description 5
- 239000002932 luster Substances 0.000 abstract description 4
- 239000003960 organic solvent Substances 0.000 abstract description 4
- 238000002360 preparation method Methods 0.000 abstract description 3
- 239000002002 slurry Substances 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 6
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- 229920000742 Cotton Polymers 0.000 description 3
- 244000137852 Petrea volubilis Species 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000001112 coagulating effect Effects 0.000 description 3
- 238000004132 cross linking Methods 0.000 description 3
- 239000002649 leather substitute Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 235000015165 citric acid Nutrition 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000004500 asepsis Methods 0.000 description 1
- 235000011148 calcium chloride Nutrition 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000006255 coating slurry Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001599 direct drying Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 235000011007 phosphoric acid Nutrition 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 235000002639 sodium chloride Nutrition 0.000 description 1
- 238000005406 washing Methods 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
- D06N3/12—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
- D06N3/0002—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
- D06N3/0006—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 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
- D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
- D06N3/0061—Organic fillers or organic fibrous fillers, e.g. ground leather waste, wood bark, cork powder, vegetable flour; Other organic compounding ingredients; Post-treatment with organic compounds
-
- 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
- D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
- D06N3/0063—Inorganic compounding ingredients, e.g. metals, carbon fibres, Na2CO3, metal layers; Post-treatment with inorganic compounds
-
- 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
- D06N3/007—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
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The present invention provides a kind of aqueous polyurethane imitative woven fabric and its manufacture method, comprises the following steps：1) base fabric impregnation treatment：Base fabric is positioned over during aqueous polyurethane contains resin pickup carries out saturation process；2) condense：It is placed in solidification liquid and is condensed treatment；3) wash, dry, shape；4) skin is ground：Surface grinding process, obtains the imitative woven fabric of aqueous polyurethane.Using waterborne polyurethane resin slurry, make imitative woven fabric during preparation and use without any organic solvent, solve the problems, such as that the imitative woven fabric of solvent-borne type wet method of the prior art has dissolvent residual pollution, realize cleanly production；And not only structure is fine and closely woven compacts for the imitative woven fabric of aqueous polyurethane wet method that the present invention is obtained, tearing strength is high, feel is flexible, also strong with bright metallic luster, high brightness and third dimension, can solve the problem that the imitative woven fabric of aqueous dry method is difficult to control to feel and low production efficiency, the problem of high cost.
Description
Technical field
The present invention relates to imitative woven fabric technical field, more particularly to a kind of aqueous polyurethane imitates woven fabric and its manufacture method.
Background technology
At present, synthetic leather has been applied to the every field in people's life, numerous in variety.Imitative woven fabric is that synthetic leather industry is near
The product that grows up over year, tear-resistant with light weight, heat resistance, toughness, cold resistance is good, the advantages of tensile strength is high.Mesh
Preceding imitative woven fabric is still that using the manufacture of solvent borne polyurethane wet method and aqueous polyurethane dry process manufacture, wherein wet processing is by solvent
DMF (dimethylformamide) in type polyurethane is replaced with water so that coating has continuous pore, so as to reach certain thickness with
Increase modelling effect.But substantial amounts of DMF is used in coating slurry, washing displacement solvent but cannot be reclaimed all, not only
Dissolvent residual endangers consumer health, and recycling design needs input cost and a large amount of energy consumptions.Aqueous polyurethane dry process is manufactured,
It is direct drying mode after the completion of impregnation, it is difficult to control feel and production efficiency problem.Waterborne polyurethane resin is to be with water
Decentralized medium, environment-protecting asepsis are the substitutes of solvent type polyurethane resin, and China some areas manufacture to aqueous polyurethane and synthesize
Leather has carried out very big policy and financial support.In recent years, the preparation research of waterborne polyurethane synthetic leather had made great progress,
But the research in imitative woven fabric will especially reach woven fabric or corium feel also in conventional fabrication processes and the progress of semi-aqueousization
And ecological, environmental protective aspect also needs to further exploitation.
The content of the invention
The shortcoming of prior art in view of the above, it is an object of the invention to provide a kind of imitative woven fabric of aqueous polyurethane and
Its manufacture method, for solving high, the aqueous dry method that there is dissolvent residual, cost recovery of the imitative woven fabric of solvent-borne type wet method in the prior art
Imitative woven fabric is difficult to control to feel and low production efficiency, the problem of high cost.
In order to achieve the above objects and other related objects, the present invention provides a kind of manufacturer of the imitative woven fabric of aqueous polyurethane
Method, comprises the following steps：1) base fabric impregnation treatment：Base fabric is positioned over during aqueous polyurethane contains resin pickup carries out saturation process,
Then it is unnecessary containing resin pickup to be squeezed out by pressure roller；2) condense：By by step 1) treatment after base fabric be placed in solidification liquid
Treatment is condensed, then unnecessary solidification liquid is squeezed out by pressure roller；3) wash, dry：To by step 2) treatment after
Base fabric is washed to remove solidification liquid remaining in the base fabric, then is dried, shaped；4) skin is ground：To by step 3) treatment
The surface of base fabric afterwards carries out grinding process, obtains the imitative woven fabric of aqueous polyurethane.
Preferably, the aqueous polyurethane includes aqueous polyurethane, water-based thickener, water containing resin pickup.With environment-friendly type water
Property polyurethane be the impregnation inorganic agent of main component, make imitative woven fabric during preparation and use without any organic solvent.
Preferably, the aqueous polyurethane is aliphatic polyurethane or aromatic urethane, and its solid content is 30%.
Preferably, the water-based thickener is association type polyurethane thickener or alkali swelling type acrylic thickener.
Preferably, viscosity of the aqueous polyurethane containing resin pickup is 1500-3500cps, and pH is 6-8.
Preferably, the step 2) in the solidification liquid include following raw material and its weight portion：Demulsification crosslinking agent 5~15
Part, 80~95 parts of water.
Preferably, it is described demulsification crosslinking agent be selected from carbonic acid, lactic acid, citric acid, phosphoric acid, calcium chloride, sodium chloride, ferric sulfate,
One or more in iron chloride, aluminium chloride.
Preferably, through the step 1) treatment after base fabric on the coated weight containing resin pickup be 500~1000g/m2。
Preferably, the step 3) in drying temperature be 120-160 DEG C, drying time is 3-5min.
Preferably, the base fabric is two-sided fine hair woven fabric, and its tow sides villus length is 2-2.5mm.
In order to achieve the above objects and other related objects, the present invention provides a kind of imitative super by foregoing aqueous polyurethane
The imitative woven fabric of aqueous polyurethane that fine manufacture method is prepared from.
As described above, aqueous polyurethane of the invention imitative woven fabric and its manufacture method, have the advantages that：The present invention
Using aqueous polyurethane wet processing, impregnation of the aqueous polyurethane containing resin pickup is carried out to woven fabric and is processed, and will by condensing
Aqueous polyurethane is preferably wrapped on woven fabric containing resin pickup, then washes, dries and grind skin, you can obtain aqueous polyurethane
Imitative woven fabric, simple to operate, production efficiency is high；Waterborne polyurethane resin slurry is wherein used, imitative woven fabric is being prepared and was being used
Without any organic solvent in journey, solve the problems, such as that the imitative woven fabric of solvent-borne type wet method of the prior art has dissolvent residual pollution,
Realize cleanly production；And the present invention imitates woven fabric not only by the aqueous polyurethane wet method that aqueous polyurethane wet processing is obtained
Structure is fine and closely woven to compact, and tearing strength is high, and feel is flexible, also strong with bright metallic luster, high brightness and third dimension, completely full
Sufficient existing market can solve the problem that the imitative woven fabric of aqueous dry method is difficult to control to feel and production efficiency to the demand of imitative woven fabric product
Low, high cost problem.
Specific embodiment
The present invention is expanded on further with reference to embodiment.It should be understood that embodiment is merely to illustrate the present invention, and it is unrestricted
The scope of the present invention.
Following examples are using two-sided fine hair woven fabric as base fabric, using the aqueous science and technology limited Company of Hefei section day
Aqueous polyurethane is the preparing raw material containing resin pickup to the manufacture method of the imitative woven fabric of aqueous polyurethane of the invention and aqueous poly-
The imitative woven fabric of urethane is further described：
Embodiment 1
A kind of manufacture method of the imitative woven fabric of aqueous polyurethane, comprises the following steps：
1st, dispensing：
(1) containing resin pickup
By aqueous polyurethane KTL770 (the aqueous science and technology limited Company of Hefei section day, fat that 10kg solid contents are 30%
Fat hydroxy-aromatic resin) it is added in 10kg running water, water-based thickener 3220 (Shenzhen Hai Chuan chemical industry) is added, high-speed stirred is uniform, glues
Degree is adjusted to 3500cps, and pH value is 7.
(2) solidification liquid is prepared
10kg phosphoric acid and 40kg running water are mixed, phosphoric acid is dissolved completely in water.
2nd, the imitative woven fabric of aqueous polyurethane is prepared：
(1) impregnation treatment：Two-sided fine hair woven fabric is positioned over fill aqueous polyurethane containing resin pickup impregnating groove in enter
Row saturation process, it is unnecessary containing resin pickup then to be squeezed out by pressure roller so that the coated weight containing resin pickup on woven fabric is
500g/m2；Pressure roller is also beneficial to being expressed in woven fabric containing resin pickup extruding unnecessary when containing resin pickup, pressure roller
Top clearance is configured according to the coated weight on the thickness of woven fabric and its surface；
(3) condense：By by step 1) treatment after the woven solidification liquid being arranged in coagulating basin in be condensed treatment,
Solidification liquid can make aqueous polyurethane demulsification crosslinking film forming, and then aqueous polyurethane is preferably wrapped in woven fabric containing resin pickup
On, then squeeze out unnecessary solidification liquid by pressure roller；
(4) wash, dry：By by step 2) treatment after woven fabric be positioned over rinsing bowl in washed with removing machine
The solidification liquid of the upper remnants that weave cotton cloth, then 5min is dried in 120 DEG C of baking ovens, and shape；
(5) skin is ground：Using decorticating mill to by step 3) surface of woven fabric after treatment carries out grinding process, makes its table
The velvet in face is stronger, and the mesh number of the sand paper selected in decorticating mill is 120 mesh, and aqueous polyurethane is can obtain after mill skin treatment
Imitative woven fabric.
Embodiment 2
A kind of manufacture method of the imitative woven fabric of aqueous polyurethane, comprises the following steps：
1st, dispensing：
(1) containing resin pickup
By aqueous polyurethane KTL775 (the aqueous science and technology limited Company of Hefei section day, virtue that 12kg solid contents are 30%
Fragrant hydroxy-aromatic resin) it is added in 8kg running water, water-based thickener RHEOLATE208 is added, high-speed stirred is uniform, and viscosity is adjusted to
2500cps, pH value is 6.
(2) solidification liquid is prepared
20kg calcium chloride and 80kg running water are mixed, calcium chloride is dissolved completely in water.
2nd, the imitative woven fabric of aqueous polyurethane is prepared：
(1) impregnation treatment：Two-sided fine hair woven fabric is positioned over fill aqueous polyurethane containing resin pickup impregnating groove in enter
Row saturation process, it is unnecessary containing resin pickup then to be squeezed out by pressure roller so that the coated weight containing resin pickup on woven fabric is
800g/m2；Pressure roller is also beneficial to being expressed in woven fabric containing resin pickup extruding unnecessary when containing resin pickup, pressure roller
Top clearance is configured according to the coated weight on the thickness of woven fabric and its surface；
(3) condense：By by step 1) treatment after the woven solidification liquid being arranged in coagulating basin in be condensed treatment,
Solidification liquid can make aqueous polyurethane demulsification crosslinking film forming, and then aqueous polyurethane is preferably wrapped in woven fabric containing resin pickup
On, then squeeze out unnecessary solidification liquid by pressure roller；
(4) wash, dry：By by step 2) treatment after woven fabric be positioned over rinsing bowl in washed with removing machine
The solidification liquid of the upper remnants that weave cotton cloth, then 4min is dried in 140 DEG C of baking ovens, and shape；
(5) skin is ground：Using decorticating mill to by step 3) surface of woven fabric after treatment carries out grinding process, makes its table
The velvet in face is stronger, and the mesh number of the sand paper selected in decorticating mill is 120 mesh, and aqueous polyurethane is can obtain after mill skin treatment
Imitative woven fabric.
Embodiment 3
A kind of manufacture method of the imitative woven fabric of aqueous polyurethane, comprises the following steps：
1st, dispensing：
(1) containing resin pickup
By aqueous polyurethane KTL776 (the aqueous science and technology limited Company of Hefei section day, virtue that 30kg solid contents are 30%
Fragrant hydroxy-aromatic resin) it is added in 5kg running water, water-based thickener 3220 (Shenzhen Hai Chuan chemical industry) is added, high-speed stirred is uniform, viscosity
1500cps is adjusted to, pH value is 8.
(2) solidification liquid is prepared
Just 3kg lactic acid, 6kg citric acids and 91kg running water are mixed, and phosphoric acid is dissolved completely in water.
2nd, the imitative woven fabric of aqueous polyurethane is prepared：
(1) impregnation treatment：Two-sided fine hair woven fabric is positioned over fill aqueous polyurethane containing resin pickup impregnating groove in enter
Row saturation process, it is unnecessary containing resin pickup then to be squeezed out by pressure roller so that the coated weight containing resin pickup on woven fabric is
1000g/m2；Pressure roller is also beneficial to being expressed in woven fabric containing resin pickup extruding unnecessary when containing resin pickup, pressure roller
Top clearance be configured according to the coated weight on the thickness of woven fabric and its surface；
(3) condense：By by step 1) treatment after the woven solidification liquid being arranged in coagulating basin in be condensed treatment,
Solidification liquid can make aqueous polyurethane demulsification crosslinking film forming, and then aqueous polyurethane is preferably wrapped in woven fabric containing resin pickup
On, then squeeze out unnecessary solidification liquid by pressure roller；
(4) wash, dry：By by step 2) treatment after woven fabric be positioned over rinsing bowl in washed with removing machine
The solidification liquid of the upper remnants that weave cotton cloth, then 3min is dried in 160 DEG C of baking ovens, and shape；
(5) skin is ground：Using decorticating mill to by step 3) surface of woven fabric after treatment carries out grinding process, makes its table
The velvet in face is stronger, and the mesh number of the sand paper selected in decorticating mill is 120 mesh, and aqueous polyurethane is can obtain after mill skin treatment
Imitative woven fabric.
Testing result：
The imitative woven fabric of aqueous polyurethane that manufacture method by the imitative woven fabric of aqueous polyurethane of the invention is prepared from is carried out
The fine and closely woven property of feel pliability, structure, metallic luster, brightness, third dimension performance parameter are tested, as a result as shown in table 1：
The performance parameter testing result of table 1
As can be seen from Table 1, the aqueous polyurethane being prepared from by the manufacture method of the imitative woven fabric of aqueous polyurethane of the invention
Not only structure is fine and closely woven compacts for imitative woven fabric, and tearing strength is high, and feel is flexible, also with bright metallic luster, high brightness and solid
Sense is strong, fully meets existing market to imitating the demand of woven fabric product, can solve the problem that the imitative woven fabric of aqueous dry method is difficult to control to feel simultaneously
And low production efficiency, the problem of high cost.And the present invention uses waterborne polyurethane resin slurry, imitative woven fabric is set to prepare and make
Without any organic solvent during, solve the imitative woven fabric of solvent-borne type wet method of the prior art and there is asking for dissolvent residual pollution
Topic, realizes cleanly production.
So, the present invention effectively overcomes various shortcoming of the prior art and has high industrial utilization.
The above-described embodiments merely illustrate the principles and effects of the present invention, not for the limitation present invention.It is any ripe
The personage for knowing this technology all can carry out modifications and changes under without prejudice to spirit and scope of the invention to above-described embodiment.Cause
This, those of ordinary skill in the art is complete with institute under technological thought without departing from disclosed spirit such as
Into all equivalent modifications or change, should be covered by claim of the invention.
Claims (10)
1. a kind of aqueous polyurethane imitates the manufacture method of woven fabric, it is characterised in that comprise the following steps：
1) base fabric impregnation treatment：Base fabric is positioned over aqueous polyurethane containing saturation process is carried out in resin pickup, then by pressure
Roller squeezes out unnecessary containing resin pickup；
2) condense：By by step 1) base fabric after treatment is placed in solidification liquid and is condensed treatment, then by the extruding of pressure roller
Go out unnecessary solidification liquid；
3) wash, dry：To by step 2) base fabric after treatment washed to remove in the base fabric remaining solidification liquid,
Dry again, shape；
4) skin is ground：To by step 3) surface of base fabric after treatment carries out grinding process, obtains the imitative woven fabric of aqueous polyurethane.
2. aqueous polyurethane according to claim 1 imitates the manufacture method of woven fabric, it is characterised in that：The aqueous polyurethane
Include aqueous polyurethane, water-based thickener, water containing resin pickup.
3. aqueous polyurethane according to claim 2 imitates the manufacture method of woven fabric, it is characterised in that：The aqueous polyurethane
It is aliphatic polyurethane or aromatic urethane, its solid content is 30%.
4. aqueous polyurethane according to claim 2 imitates the manufacture method of woven fabric, it is characterised in that：The water-based thickener
It is association type polyurethane thickener or alkali swelling type acrylic thickener.
5. aqueous polyurethane according to claim 1 imitates the manufacture method of woven fabric, it is characterised in that：The aqueous polyurethane
Viscosity containing resin pickup is 1500-3500cps, and pH is 6-8.
6. aqueous polyurethane according to claim 1 imitates the manufacture method of woven fabric, it is characterised in that：The step 2) in
The solidification liquid includes following raw material and its weight portion：5~15 parts of crosslinking agent of demulsification, 80~95 parts of water.
7. aqueous polyurethane according to claim 6 imitates the manufacture method of woven fabric, it is characterised in that：The demulsification crosslinking agent
Selected from one or more in carbonic acid, lactic acid, citric acid, phosphoric acid, calcium chloride, sodium chloride, ferric sulfate, iron chloride, aluminium chloride.
8. aqueous polyurethane according to claim 1 imitates the manufacture method of woven fabric, it is characterised in that：Through the step 1) place
The coated weight containing resin pickup in base fabric after reason is 500~1000g/m2。
9. aqueous polyurethane according to claim 1 imitates the manufacture method of woven fabric, it is characterised in that：The step 3) middle baking
Dry temperature is 120-160 DEG C, and drying time is 3-5min.
10. a kind of manufacture method of imitative woven fabric of aqueous polyurethane by as any one of claim 1~9 is prepared from
Aqueous polyurethane imitates woven fabric.
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| CN115821601A (en) * | 2022-12-20 | 2023-03-21 | 万桦（常州）新材料科技有限公司 | Colorless-migration water-based imitated microfiber artificial leather and preparation method thereof |
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