CN108103800B - Polyurethane slurry, artificial leather and preparation method thereof - Google Patents
Polyurethane slurry, artificial leather and preparation method thereof Download PDFInfo
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- CN108103800B CN108103800B CN201711297884.1A CN201711297884A CN108103800B CN 108103800 B CN108103800 B CN 108103800B CN 201711297884 A CN201711297884 A CN 201711297884A CN 108103800 B CN108103800 B CN 108103800B
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- 239000004814 polyurethane Substances 0.000 title claims abstract description 86
- 229920002635 polyurethane Polymers 0.000 title claims abstract description 75
- 239000002002 slurry Substances 0.000 title claims abstract description 55
- 239000002649 leather substitute Substances 0.000 title claims abstract description 37
- 238000002360 preparation method Methods 0.000 title claims abstract description 35
- 229920005749 polyurethane resin Polymers 0.000 claims abstract description 59
- 239000012943 hotmelt Substances 0.000 claims abstract description 23
- 239000003960 organic solvent Substances 0.000 claims abstract description 7
- 239000002994 raw material Substances 0.000 claims abstract description 7
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 70
- 239000004800 polyvinyl chloride Substances 0.000 claims description 70
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 30
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 30
- 239000010410 layer Substances 0.000 claims description 29
- 238000005187 foaming Methods 0.000 claims description 25
- 239000004744 fabric Substances 0.000 claims description 22
- 239000003795 chemical substances by application Substances 0.000 claims description 21
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 claims description 20
- 238000000576 coating method Methods 0.000 claims description 18
- 239000002344 surface layer Substances 0.000 claims description 18
- 239000011248 coating agent Substances 0.000 claims description 17
- 239000006260 foam Substances 0.000 claims description 17
- 229920005989 resin Polymers 0.000 claims description 12
- 239000011347 resin Substances 0.000 claims description 12
- 239000003086 colorant Substances 0.000 claims description 10
- 238000004513 sizing Methods 0.000 claims description 9
- 239000012790 adhesive layer Substances 0.000 claims description 8
- 238000000926 separation method Methods 0.000 claims description 7
- 239000002585 base Substances 0.000 claims description 4
- 239000012046 mixed solvent Substances 0.000 claims description 4
- 238000012986 modification Methods 0.000 claims description 3
- 230000004048 modification Effects 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 2
- 150000002148 esters Chemical class 0.000 claims description 2
- 239000011265 semifinished product Substances 0.000 claims description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims 2
- 229910021529 ammonia Inorganic materials 0.000 claims 1
- 239000010985 leather Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 239000000463 material Substances 0.000 description 26
- 238000000034 method Methods 0.000 description 24
- 238000001035 drying Methods 0.000 description 8
- 239000000047 product Substances 0.000 description 8
- 239000012752 auxiliary agent Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 239000011527 polyurethane coating Substances 0.000 description 6
- 238000012545 processing Methods 0.000 description 6
- 239000002562 thickening agent Substances 0.000 description 6
- 238000013461 design Methods 0.000 description 4
- ZHNUHDYFZUAESO-UHFFFAOYSA-N Formamide Chemical compound NC=O ZHNUHDYFZUAESO-UHFFFAOYSA-N 0.000 description 3
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 3
- 238000012644 addition polymerization Methods 0.000 description 3
- 230000036528 appetite Effects 0.000 description 3
- 235000019789 appetite Nutrition 0.000 description 3
- 159000000009 barium salts Chemical class 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 238000004040 coloring Methods 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 239000006071 cream Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 239000004088 foaming agent Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000007591 painting process Methods 0.000 description 3
- 239000004014 plasticizer Substances 0.000 description 3
- 238000006116 polymerization reaction Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 239000003381 stabilizer Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 229910052725 zinc Inorganic materials 0.000 description 3
- 239000011701 zinc Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N Acrylic acid Chemical compound OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 150000002440 hydroxy compounds Chemical class 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000000126 substance 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
- D06N3/12—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
- D06N3/141—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 mixture of two or more polyurethanes in the same layer
-
- 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
- D06N3/0095—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 inversion technique; by transfer processes
- D06N3/0097—Release surface, e.g. separation sheets; Silicone papers
-
- 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
- D06N2209/1664—Releasability
-
- 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
- D06N2211/00—Specially adapted uses
- D06N2211/12—Decorative or sun protection articles
- D06N2211/28—Artificial leather
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
Abstract
The present invention relates to a kind of polyurethane slurries, prepare raw material including following weight parts: 30-45 parts of hot melt polyurethane resin, 25-40 parts of modified polyurethane resin, 25-40 parts of polyurethane resin and 100-110 parts of organic solvent.The invention further relates to a kind of artificial leathers and preparation method thereof.Polyurethane slurry of the invention and the artificial leather prepared using above-mentioned slurry, have the stripping performance good to PVC release paper mold, overcome the limitation being formerly only available with the dual-purpose paper production SEMIPU of PU/PVC.
Description
Technical field
The present invention relates to artificial leather technology, in particular to a kind of polyurethane slurry, artificial leather and preparation method thereof.
Background technique
In existing dry method artificial leather coating process, general PVC release paper (mold) can only be applied with Welvic material
In the fooled surface layer of PVC release paper, coating foamed polyvinyl chloride paste is after high temperature foams cloth, then applies coating medium fitting base fabric, cooling
Removing.Under normal conditions, it cannot be applied and scraped in PVC release paper with polyurethane material, when surface layer directly contact PVC release paper, passed through
High temperature foaming is crossed, cladding and release paper can have bad removing, and causing release paper, (release paper is to may be reused
) stripping is broken scraps.Therefore, in the prior art, using PU/PVC with dual-purpose paper produce half PU product there are it is at high cost (release paper at
This height) the problem of, and PVC release paper is not so good as using the dual-purpose release paper mold temperature tolerance of PU/PVC, the high product of processing temperature is raw
Release paper has that access times are few, the service life is short when production.
Summary of the invention
The technical problems to be solved by the present invention are: providing a kind of polyurethane slurry, have preferable to PVC release paper
Stripping performance, so as to so that PVC release paper suitable for production half PU (SEMI-PU) artificial leather.
Further, the present invention also provides a kind of artificial leather prepared using above-mentioned polyurethane slurry and its systems
Preparation Method.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention are as follows:
A kind of polyurethane slurry prepares raw material including following weight parts: 30-45 parts of hot melt polyurethane resin,
25-40 parts of modified polyurethane resin, 25-40 parts of polyurethane resin and 100-110 parts of organic solvent.
A kind of preparation method of artificial leather, the preparation including surface layer, the surface layer the preparation method comprises the following steps: by above-mentioned modification
Polyurethane slurry is coated in PVC release paper, is dried under the conditions of 100-140 DEG C, and surface layer is formed.
A kind of artificial leather is prepared using the preparation method of above-mentioned artificial leather.
The beneficial effects of the present invention are:
(1) modified polyurethane resin is added in polyurethane slurry of the invention, performance can be shelled on Reinforced PVC paper, have
Have it is anti-sticking help release effect, and between bottom PVC slurry have good followability, hot melt polyurethane also function to enhancing stripping
Effect from performance, and modulus is low, can also improve feel.In order to find optimal energy and the good material of polyurethane resin compatibility
Material, applicant are known, modified polyurethane resin and hot melt polyurethane by years of researches and experiment by experimental verification
Two kinds of materials of resin be can and the good material of polyurethane resin compatibility, while the special material that can be used in PVC release paper again
Material.Lines sizing plays regulatory role when polyurethane resin is used to adjust feel and after-processing technology, can be by adjusting content
Ratio obtains the feel and lines of needs；
(2) polyurethane slurry of the invention and the artificial leather prepared using above-mentioned slurry, have to PVC from
The stripping performance that type paper matrix has had substantially increases the service life of PVC release paper, overcome be formerly only available it is dual-purpose with PU/PVC
The limitation of paper production SEMIPU.And PVC release paper is cheap, and the dual-purpose paper of temperature tolerance ratio PU is high, cost is greatly reduced, with
And the machining kinds of abundant product.
Specific embodiment
To explain the technical content, the achieved purpose and the effect of the present invention in detail, it is explained below in conjunction with embodiment.
The most critical design of the present invention is: knowing by years of researches and experiment, modified polyurethane resin and hot melt
Property two kinds of materials of polyurethane resin be can and the good material of polyurethane resin compatibility, while can be used in PVC release paper again
Special material.
The present invention provides a kind of polyurethane slurry, prepares raw material including following weight parts: hot melt polyurethane tree
30-45 parts of rouge, 25-40 parts of modified polyurethane resin, 25-405 parts of polyurethane resin and 100-110 parts of organic solvent.
A kind of preparation method of artificial leather, the preparation including surface layer, the surface layer the preparation method comprises the following steps: by above-mentioned modification
Polyurethane slurry is coated in PVC release paper, is dried under the conditions of 100-140 DEG C, and surface layer is formed.
A kind of artificial leather is prepared using the preparation method of above-mentioned artificial leather.
As can be seen from the above description, the beneficial effects of the present invention are:
(1) modified polyurethane resin is added in polyurethane slurry of the invention, performance can be shelled on Reinforced PVC paper, have
Have it is anti-sticking help release effect, and between bottom PVC slurry have good followability, hot melt polyurethane also function to enhancing stripping
Effect from performance, and modulus is low, can also improve feel.In order to find optimal energy and the good material of polyurethane resin compatibility
Material, applicant are known, modified polyurethane resin and hot melt polyurethane by years of researches and experiment by experimental verification
Two kinds of materials of resin be can and the good material of polyurethane resin compatibility, while the special material that can be used in PVC release paper again
Material.Lines sizing plays regulatory role when polyurethane resin is used to adjust feel and after-processing technology, can be by adjusting content
Ratio obtains the feel and lines of needs；
(2) polyurethane slurry of the invention and the artificial leather prepared using above-mentioned slurry, have to PVC from
The stripping performance that type paper matrix has had substantially increases the service life of PVC release paper, overcome be formerly only available it is dual-purpose with PU/PVC
The limitation of paper production SEMIPU.And PVC release paper is cheap, and the dual-purpose paper of temperature tolerance ratio PU is high, cost is greatly reduced, with
And the machining kinds of abundant product.
In polyurethane slurry of the invention:
Further, the raw material for preparing further includes 0.1-0.3 parts of auxiliary agent, 12-16 parts of age resister and colorant 0-10
Part.
Seen from the above description, preparing raw material may also include 0.1-0.3 parts of auxiliary agent, 12-16 parts of age resister and colorant
0-10 parts.Auxiliary agent can be the auxiliary agents such as levelling agent in the prior art, color separation agent, and age resister and colorant are in principle
To select existing age resister and colorant.As a specific selection example, levelling agent selects BYK-9565, color separation agent
The BYK-104 color separation preventing agent product of Bi Ke BYK chemical company, Germany production is selected, age resister selects Fujian Bao Litexin
The SR-02 of Materials Co., Ltd.
Further, the organic solvent is that dimethylformamide, acetone and butanone are mixed by the ratio of 3:3:3.8-4.2
Mixed solvent afterwards.
Seen from the above description, organic solvent is that dimethylformamide, acetone and butanone are mixed by the ratio of 3:3:3.8-4.2
Mixed solvent after conjunction, more preferably, organic solvent are that dimethylformamide, acetone and butanone are mixed by the ratio of 3:3:4
Mixed solvent afterwards.
Further, the hot melt polyurethane resin is the hot melt polyurethane of model PLT-618X；
The modified polyurethane resin is the modified polyurethane resin of model PLT-103；
The polyurethane resin is the polyurethane resin of model DY-8300.
Seen from the above description, as a specific selection example, hot melt polyurethane resin selects melting temperature to exist
160-170 or so, the relatively good hot melt polyurethane resin of the release stripping result of material, such as Fujian Bao Lite new material have
Limit company produces PLT-816X；Modified polyurethane resin, which is selected, has excellent light resistance and outdoor ageing resistance, melting temperature
Material low, with excellent demoulding peeling effect is spent, can be and compounded by acroleic acid resin and aliphatic polyurethane, example
The PLT-103 resin produced such as Fujian Bao Lite new material Co., Ltd；What the polyurethane resin of model DY-8300 was selected is
The resin of Jinjiang great Yuan polyurethane resin factory production, polyurethane referred herein are that production polyurethane used for artificial leather is by isocyanide
Acid esters (monomer) is polymerized with hydroxy compounds, abbreviation PU.Furthermore, it is desirable to explanation, modified polyurethane of the invention can
How much to adjust modified polyurethane mixed cloth in the removing difficulty or ease of PVC release paper by dosage.The hot melt of above-mentioned model
Polyurethane resin, modified polyurethane resin and polyurethane resin are used cooperatively, have preferably with PVC release paper fissility
Energy.
Further, the viscosity of the polyurethane slurry is 900-1500CPS.
Seen from the above description, it is preferred that the viscosity of controllable polyurethane slurry is 900-1500CPS, can make to change
Property polyurethane slurry in later period preparation process, be easier to and PVC release paper remove.
In the preparation method of artificial leather of the invention:
Further, it is 9-13 that the polyurethane slurry, which is coated on the coating thickness in PVC release paper,.
Seen from the above description, it is preferred that it is 9-13 that polyurethane slurry, which is coated on the coating thickness in PVC release paper,
Silk, further, can also be scratched, foodstuff amount is in 25-60g with dise knife.
It further, further include the preparation of foaming layer, adhesive layer and base cloth layer, the foaming layer, adhesive layer and base cloth layer
The preparation method comprises the following steps: by foam polyvinyl chloride slurry be coated on the surface layer on, obtain foaming layer；Then binding sizing agent is coated
It in polyvinyl chloride foam layer, being bonded artificial leather base fabric on binding sizing agent, is then dried, obtains adhesive layer and base fabric
Layer.
Further, it obtains adhesive layer and base cloth layer is cooled down later, then PVC release paper is removed, is obtained
Artificial leather semi-finished product.
The embodiment of the present invention one are as follows:
The preparation method of the artificial leather of the present embodiment, includes the following steps:
(1) the PVC release paper needed for selecting, the modified polyurethane for being 1000CPS/25 DEG C in release paper front application viscosity
Slurry, the weight of modified polyurethane slurry specifically:
Hot melt polyurethane resin (PLT-618X): 40,
Modified polyurethane resin (PLT-103): 30,
Polyurethane resin (DY-8300): 30,
Dimethylformamide/acetone/butanone (is mixed) by the ratio of 3:3:3.8: 80,
Levelling agent (BYK-9565): 0.1,
Age resister (SR-02): 15,
Color separation agent (BYK-104): 0.3, and
Colorant: 0-10.
Mill base material coating thickness be 9 (can also be scratched with dise knife, foodstuff amount is in 25g).By 100 DEG C of temperature
Dry 1 minute obtained modified polyurethane surface layer.
Modified polyurethane slurry in formula is that surface layer is adjusted by dosage size in the removing difficulty or ease of PVC release paper.
It is as shown in table 1:
Table 1
| Dosage 1 | Dosage 2 | Dosage 3 | Dosage 4 | |
| Hot melt polyurethane (PLT-618X) | 40 | 25 | 15 | 5 |
| Modified polyurethane (PLT-103) | 30 | 20 | 15 | 5 |
| Polyurethane (DY-8300) | 30 | 55 | 70 | 90 |
Release paper (3cm/kg) peel strength is tested using electronics measurer for pulling force, the test result of dosage 1-3
It is respectively as follows: when pulling force reads 0.015N, 0.035N and 0.2N respectively and starts to remove, the test result of dosage 4 is that release paper stripping is broken.
(2) foam polyvinyl chloride paste preparation (in principle, foaming layer in the prior art is also selected in foaming layer, it is preferred that
Select following foaming layers):
Utilize the plasticizer DOP that 60 parts are sequentially added in dry method PVC batching kettle；Hardness depending on product adjusts deal, then
The addition polymerization vinyl chloride paste resin PVC paste resin of the degree of polymerization 900 (general select) is simultaneously added 80 parts or so of appropriate filler,
Slurry viscosity is adjusted to the thickener of 2000CPS, adds foaming agent (two formyl ammonia of azo) and stabilizer (liquid composite zinc, barium salt
Class) and polyvinyl chloride coloring cream.
The foam polyvinyl chloride thickener prepared is spread evenly across previous process transmission by the coating apparatus produced using host
The modified polyurethane fabric come, foam polyvinyl chloride paste amount are 300g/Y, and the thickness and multiplying power with specific reference to sample come
Adjustment.It is just introduced in foaming furnace with release paper in host technique after coating, enters next process after foaming in 170 DEG C.
(3) polyurethane coating medium and base fabric
Using the fitting painting process in host assembly line process, the PVC foam layer cooled down after foaming is coated with appetite
For the polyurethane coating medium (i.e. binding sizing agent) of 90G or so, and selected artificial leather base fabric, by attaching process, by release paper and
The material of carrying, which is sent into furnace, dries, and temperature is 100 DEG C, and next procedure can be entered by drying 1.5 minutes or so.
(4) clot after removing the coating medium of drying from release paper；
(5) enter subsequent processing operations.
The embodiment of the present invention two are as follows:
The preparation method of the artificial leather of the present embodiment, includes the following steps:
(1) the PVC release paper needed for selecting, the modified polyurethane for being 1500CPS/25 DEG C in release paper front application viscosity
Slurry, the weight of modified polyurethane slurry specifically:
Hot melt polyurethane resin (PLT-618X): 35,
Modified polyurethane resin (PLT-103): 40,
Polyurethane resin (DY-8300): 25,
Dimethylformamide/acetone/butanone (is mixed) by the ratio of 3:3:4.2: 80,
Levelling agent (BYK-9565): 0.1-0.3,
Age resister (SR-02): 15,
Color separation agent (BYK-104): 0.8, and
Colorant: 10.
Mill base material coating thickness be 13 (can also be scratched with dise knife, foodstuff amount is in 60g).By 135 DEG C of temperature
Degree 1.5 minutes obtained modified polyurethane surface layers of drying.
(2) foam polyvinyl chloride paste preparation (in principle, foaming layer in the prior art is also selected in foaming layer, it is preferred that
Select following foaming layers):
Utilize the plasticizer DOP that 90 parts are sequentially added in dry method PVC batching kettle；Hardness depending on product adjusts deal, then
The addition polymerization vinyl chloride paste resin PVC paste resin of the degree of polymerization 1300 (general select) is simultaneously added 80 parts or so of appropriate filler,
Slurry viscosity is adjusted to the thickener of 3000CPS, adds foaming agent (two formyl ammonia of azo) and stabilizer (liquid composite zinc, barium salt
Class) and polyvinyl chloride coloring cream.
The foam polyvinyl chloride thickener prepared is spread evenly across previous process transmission by the coating apparatus produced using host
The modified polyurethane fabric come, foam polyvinyl chloride paste amount are 1000g/Y, and the thickness and multiplying power with specific reference to sample come
Adjustment.It is just introduced in foaming furnace with release paper in host technique after coating, enters next process after foaming in 200 DEG C.
(3) polyurethane coating medium and base fabric
Using the fitting painting process in host assembly line process, the PVC foam layer cooled down after foaming is coated with appetite
For the polyurethane coating medium (i.e. binding sizing agent) of 130G or so, and selected artificial leather base fabric, by attaching process, by release paper and
The material of carrying, which is sent into furnace, dries, and temperature is 140 DEG C, and next procedure can be entered by drying 1.5 minutes or so.
(4) clot after removing the coating medium of drying from release paper
(5) enter subsequent processing operations.
The embodiment of the present invention three are as follows:
The preparation method of the artificial leather of the present embodiment, includes the following steps:
(1) the PVC release paper needed for selecting, the modified polyurethane for being 1200CPS/25 DEG C in release paper front application viscosity
Slurry, the weight of modified polyurethane slurry specifically:
Hot melt polyurethane resin (PLT-618X): 25,
Modified polyurethane resin (PLT-103): 25,
Polyurethane resin (DY-8300) 50,
Dimethylformamide/acetone/butanone (is mixed) by the ratio of 3:3:4: 80,
Levelling agent (BYK-9565): 0.2,
Age resister (SR-02): 15,
Color separation agent (BYK-104): 0.5, and
Colorant: 5.
Mill base material coating thickness be 10 (can also be scratched with dise knife, foodstuff amount is in 40g).By 125 DEG C of temperature
Degree 1.2 minutes obtained modified polyurethane surface layers of drying.
(2) foam polyvinyl chloride paste preparation (in principle, foaming layer in the prior art is also selected in foaming layer, it is preferred that
Select following foaming layers):
Utilize the plasticizer DOP that 70 parts are sequentially added in dry method PVC batching kettle；Hardness depending on product adjusts deal, then
The addition polymerization vinyl chloride paste resin PVC paste resin of the degree of polymerization 1100 (general select) is simultaneously added 80 parts or so of appropriate filler,
Slurry viscosity is adjusted to the thickener of 2500CPS, adds foaming agent (two formyl ammonia of azo) and stabilizer (liquid composite zinc, barium salt
Class) and polyvinyl chloride coloring cream.
The foam polyvinyl chloride thickener prepared is spread evenly across previous process transmission by the coating apparatus produced using host
The modified polyurethane fabric come, foam polyvinyl chloride paste amount are 700g/Y, and the thickness and multiplying power with specific reference to sample come
Adjustment.It is just introduced in foaming furnace with release paper in host technique after coating, enters next process after foaming in 180 DEG C.
(3) polyurethane coating medium and base fabric
Using the fitting painting process in host assembly line process, the PVC foam layer cooled down after foaming is coated with appetite
For the polyurethane coating medium (i.e. binding sizing agent) of 100G or so, and selected artificial leather base fabric, by attaching process, by release paper and
The material of carrying, which is sent into furnace, dries, and temperature is 120 DEG C, and next procedure can be entered by drying 1.5 minutes or so.
(4) clot after removing the coating medium of drying from release paper
(5) enter subsequent processing operations.
The embodiment of the present invention four are as follows:
The preparation method of the artificial leather of the present embodiment, only the weight Yu viscosity of modified polyurethane slurry design not
Together, other are the same as example 1, the weight of modified polyurethane slurry specifically:
Hot melt polyurethane resin (PLT-618X): 35,
Modified polyurethane resin (PLT-103): 35,
Polyurethane resin (DY-8300): 30,
Dimethylformamide/acetone/butanone (is mixed) by the ratio of 3:3:3.8: 100,
Auxiliary agent: 0.1, and
Age resister (SR-02): 12.
The viscosity of the polyurethane slurry is 900CPS/25 DEG C.
The embodiment of the present invention five are as follows:
The preparation method of the artificial leather of the present embodiment, only the weight Yu viscosity of modified polyurethane slurry design not
Together, other are the same as example 1, the weight of modified polyurethane slurry specifically:
Hot melt polyurethane resin (PLT-618X): 40,
Modified polyurethane resin (PLT-103): 35,
Polyurethane resin (DY-8300): 25,
Dimethylformamide/acetone/butanone (is mixed) by the ratio of 3:3:4.2: 110,
Auxiliary agent: 0.3,
Age resister (SR-02): 16, and
Colorant: 10.
The viscosity of the polyurethane slurry is 1500CPS/25 DEG C.
The embodiment of the present invention six are as follows:
The preparation method of the artificial leather of the present embodiment, only the weight Yu viscosity of modified polyurethane slurry design not
Together, other are the same as example 1, the weight of modified polyurethane slurry specifically:
Hot melt polyurethane resin (PLT-618X): 30,
Modified polyurethane resin (PLT-103): 35,
Polyurethane resin (DY-8300): 35,
Dimethylformamide/acetone/butanone (is mixed) by the ratio of 3:3:4: 105,
Auxiliary agent: 0.2,
Age resister (SR-02): 14, and
Colorant: 5.
The viscosity of the polyurethane slurry is 1300CPS/25 DEG C.
Performance test
The polyurethane slurry that embodiment one to embodiment six obtains is coated in PVC release paper and face is respectively prepared
Layer, and surface layer obtained is removed from the PVC release paper, using electronics measurer for pulling force to PVC in stripping process
Release paper (3cm/kg) peel strength is tested, and the test result of embodiment one to embodiment six is respectively as follows: pulling force reading point
Other 0.015N, 0.01N, 0.028N, 0.013N, 0.012N, release paper starts to remove when 0.013N, and intact after release paper removing
As before, breakage does not occur.
In conclusion polyurethane slurry provided by the invention and the artificial leather prepared using above-mentioned slurry,
With the stripping performance good to PVC release paper mold, the limitation being formerly only available with the dual-purpose paper production SEMIPU of PU/PVC is overcome.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalents made by bright description are applied directly or indirectly in relevant technical field, are similarly included in this hair
In bright scope of patent protection.
Claims (7)
1. a kind of polyurethane slurry, which is characterized in that prepare raw material including following weight parts: hot melt polyurethane resin
30-45 parts, 25-40 parts of modified polyurethane resin, 25-40 parts of polyurethane resin and 100-110 parts of organic solvent；It is described organic molten
Agent is the mixed mixed solvent of ratio that dimethylformamide, acetone and butanone press 3:3:3.8-4.2；The poly- ammonia of hot melt
Ester resin is the hot melt polyurethane of model PLT-618X；The modified polyurethane resin is the modification of model PLT-103
Polyurethane resin；The polyurethane resin is the polyurethane resin of model DY-8300；The viscosity of the polyurethane slurry
For 900-1500CPS.
2. polyurethane slurry according to claim 1, which is characterized in that it is described prepare raw material further include levelling agent or
0.1-0.3 parts of color separation agent, 12-16 parts of age resister and 0-10 parts of colorant.
3. a kind of preparation method of artificial leather, the preparation including surface layer, which is characterized in that the surface layer the preparation method comprises the following steps: will
Polyurethane slurry described in claim 1-2 any one is coated in PVC release paper, is dried under the conditions of 100-140 DEG C
It is dry, form surface layer.
4. the preparation method of artificial leather according to claim 3, which is characterized in that the polyurethane slurry is coated on
Coating thickness in PVC release paper is 9-13.
5. the preparation method of artificial leather according to claim 3, which is characterized in that further include foaming layer, adhesive layer and base
The preparation of layer of cloth, the foaming layer, adhesive layer and base cloth layer the preparation method comprises the following steps: foam polyvinyl chloride slurry is coated on described
In surface layer, foaming layer is obtained；Then binding sizing agent is coated in polyvinyl chloride foam layer, is bonded on binding sizing agent artificial
Then leather base cloth is dried, adhesive layer and base cloth layer are obtained.
6. the preparation method of artificial leather according to claim 5, which is characterized in that obtain the laggard of adhesive layer and base cloth layer
Row cooling, then removes PVC release paper, obtains artificial leather semi-finished product.
7. a kind of artificial leather, which is characterized in that prepared using the preparation method of artificial leather described in claim 3-5 any one
It forms.
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| CN1279313A (en) * | 1999-06-29 | 2001-01-10 | 财团法人工业技术研究院 | A kind of manufacture method of polyurethane synthetic leather |
| CN101454503A (en) * | 2006-05-30 | 2009-06-10 | 可乐丽股份有限公司 | Base material for artificial leather and grained artificial leather |
| CN101586311A (en) * | 2009-05-07 | 2009-11-25 | 安安(中国)有限公司 | Production process of environmental protection PU composite leather and formula thereof |
| CN104233839A (en) * | 2014-10-14 | 2014-12-24 | 福建宝利特集团有限公司 | Once-formed PU/ PVC synthetic leather and preparation method thereof |
| CN107353862A (en) * | 2017-06-14 | 2017-11-17 | 安徽友捷包装材料有限公司 | A kind of hot melt type polyurethane PUR and preparation method thereof |
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2017
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1279313A (en) * | 1999-06-29 | 2001-01-10 | 财团法人工业技术研究院 | A kind of manufacture method of polyurethane synthetic leather |
| CN101454503A (en) * | 2006-05-30 | 2009-06-10 | 可乐丽股份有限公司 | Base material for artificial leather and grained artificial leather |
| CN101586311A (en) * | 2009-05-07 | 2009-11-25 | 安安(中国)有限公司 | Production process of environmental protection PU composite leather and formula thereof |
| CN104233839A (en) * | 2014-10-14 | 2014-12-24 | 福建宝利特集团有限公司 | Once-formed PU/ PVC synthetic leather and preparation method thereof |
| CN107353862A (en) * | 2017-06-14 | 2017-11-17 | 安徽友捷包装材料有限公司 | A kind of hot melt type polyurethane PUR and preparation method thereof |
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