CN108342911A - A kind of preparation method of PU resins synthesis leather - Google Patents
A kind of preparation method of PU resins synthesis leather Download PDFInfo
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- CN108342911A CN108342911A CN201810140173.1A CN201810140173A CN108342911A CN 108342911 A CN108342911 A CN 108342911A CN 201810140173 A CN201810140173 A CN 201810140173A CN 108342911 A CN108342911 A CN 108342911A
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- 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
- D06N3/0056—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
- D06N3/0059—Organic ingredients with special effects, e.g. oil- or water-repellent, antimicrobial, flame-resistant, magnetic, bactericidal, odour-influencing agents; perfumes
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- 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
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- 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
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- 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
- D06N2209/14—Properties of the materials having chemical properties
- D06N2209/142—Hydrophobic
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- 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
- D06N2209/14—Properties of the materials having chemical properties
- D06N2209/143—Inert, i.e. inert to chemical degradation, corrosion resistant
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- 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
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Inorganic Chemistry (AREA)
- Treatment And Processing Of Natural Fur Or Leather (AREA)
- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
Abstract
The present invention relates to artificial synthesized leather technical field, in particular a kind of preparation method of PU resins synthesis leather, including following raw material components and parts by weight：Waterborne polyurethane resin：15 to 25 parts；Fatty alcohol polyoxyethylene ether：10 to 20 parts；Ph conditioning agents：1.0 to 2.0 parts；Polyvinyl alcohol：1.5 to 2.5 parts；Tackified emulsion：3.0 to 5.0 parts；Water：3.5 to 5.5 parts；Solvent：30 to 50 parts；Antifoaming agent：0.2 to 0.8 part；Wetting agent：0.6 to 1.1 part；Thickener：0.7 to 1.8 part；Color-change powder：8.0 to 12 parts, PU resins synthesis leather of the present invention not will produce toxic, inflammable organic solvent volatile matter in process of production, environmental pollution will not be caused, harm will not be brought to health, and there is more excellent sealing performance, water resistance and barotolerance.The PU synthetic leather quality that the present invention obtains is high, durable, stable quality, and production efficiency is high.
Description
Technical field
The present invention relates to artificial synthesized leather technical field, specially a kind of preparation method of PU resins synthesis leather.
Background technology
Currently, synthetic leather product just becomes following fashion trend, each in clothes, luggage, suitcase, furniture, footwear etc.
Field is widely used.General PU synthetic leather be typically by polyurethane resin composition be laminated to non-woven fabrics, looped fabric, textile cloth or
Lamellar product made of the compositions such as woven cloth, structure include base fabric and the polyurethane resin surface layer that is attached in base fabric,
Surface layer, which is mainly risen, to be decorated and appearance is made to achieve the effect that imitative natural leather；General synthetic leather in use all using suture or
Solvent lamination technique.
PU synthetic leather easy tos produce toxic, inflammable organic solvent volatile matter in process of production, pollutes the environment,
Huge Health cost is also resulted in the operating personnel of production scene.And there are poor adhesion, system are unstable for existing PU synthetic leather
Fixed, water resistance and alkali resistance difference problem.In consideration of it, it is proposed that a kind of preparation method of PU resins synthesis leather.
Invention content
The purpose of the present invention is to provide a kind of preparation methods of PU resins synthesis leather, to solve to carry in above-mentioned background technology
The problem of going out.
To achieve the above object, the present invention provides the following technical solutions：
A kind of preparation method of PU resins synthesis leather, including following raw material components and parts by weight：Waterborne polyurethane resin：15
To 25 parts；Fatty alcohol polyoxyethylene ether：10 to 20 parts；Ph conditioning agents：1.0 to 2.0 parts；Polyvinyl alcohol：1.5 to 2.5 parts；Thickening
Lotion：3.0 to 5.0 parts；Water：3.5 to 5.5 parts；Solvent：30 to 50 parts；Antifoaming agent：0.2 to 0.8 part；Wetting agent：0.6 to
1.1 part；Thickener：0.7 to 1.8 part；Color-change powder：8.0 to 12 parts.
Preferably, the waterborne polyurethane resin is anion polyether type aqueous polyurethane resin.
Preferably, the solvent is ethyl acetate, and ethyl acetate is cation type emulsion.
Preferably, the ph conditioning agents be selected from dimethylethanolamine, trishydroxymethylaminomethane, organic-silicon-modified amine,
In organic alcohol amine and ammonium hydroxide any two or it is a variety of.
Preferably, the Tackified emulsion is selected from aqueous rosin milk, aqueous terpene resin emulsion, water soluble acrylic acid thickening
Any one or more in lotion, watersoluble modified tackifier resin emulsion.
Preferably, the mixture that the antifoaming agent is selected from polyethers modified organic silicon antifoaming agent, mineral oil and wax defoams
It is one or more in agent and polysiloxane defoaming agent.
Preferably, the wetting agent is polyether-type wetting agent or polyalcohols ethers wetting agent.
Preferably, the thickener is selected from anionic acrylic polymer, non-ionic polyether polyol class thickener, non-
Any one or more in ion polyether-polyurethane association thickener and hydrophobically-modified alkali swelling type thickener.
Preferably, the color-change powder is silica.
Preferably, the preparation method of the PU resins synthesis leather, includes the following steps：
(1), the ph of solvent is adjusted to 7.2-7.8 with ph conditioning agents, adds polyvinyl alcohol, is uniformly dispersed；
(2), rotating speed is controlled at 460-480 revs/min, is slowly added to the mixture of waterborne polyurethane resin and water, side
It stirs side to be added, be uniformly mixed；
(3), continue to control rotating speed at 460-480 revs/min, be slowly added to fatty alcohol polyoxyethylene ether and color-change powder, side
It stirs side to be added, be uniformly mixed；
(4), ph values are adjusted to 7.2-8.2 with ph conditioning agents, then sequentially add Tackified emulsion, antifoaming agent, wetting agent, most
After be slowly added to thickener, obtain PU resins synthesis and remove from office bottom material；
(5), PU resins synthesis leather bottom material blade coating made from above step will be passed through to be put into microwave tunnel on base cloth layer
Stove carries out heating cure, three sections of microwave tunnel stove point, 82-88 DEG C of front end first segment temperature setting, intermediate second segment setting
115-125 DEG C, tail third section is arranged 92-98 DEG C, and the time of heating cure is 3-10 minutes；
(6), by heating cure, treated that raw material crosses water cooling, then steam drying, then cold front heavy rain, shapes, winding,
It is packaged to be PU resins synthesis leather.
Compared with prior art, the beneficial effects of the invention are as follows：PU resins synthesis leather of the present invention is in production process
In not will produce toxic, inflammable organic solvent volatile matter, environmental pollution will not be caused, harm will not be brought to health,
And there is more excellent sealing performance, water resistance and barotolerance.The preparation side of PU resins synthesis leather of the present invention
Method, obtained PU synthetic leather quality is high, durable, stable quality, and production efficiency is high.
Specific implementation mode
Below in conjunction with the embodiment of the present invention, technical scheme in the embodiment of the invention is clearly and completely described,
Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based in the present invention
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all
Belong to the scope of protection of the invention.
The present invention provides a kind of technical solution：
Embodiment 1
A kind of preparation method of PU resins synthesis leather, including following raw material components and parts by weight：Including following raw material components
And parts by weight：Waterborne polyurethane resin：15 to 25 parts；Fatty alcohol polyoxyethylene ether：10 to 20 parts；Ph conditioning agents：1.0 to 2.0
Part；Polyvinyl alcohol：1.5 to 2.5 parts；Tackified emulsion：3.0 to 5.0 parts；Water：3.5 to 5.5 parts；Solvent：30 to 50 parts；Defoaming
Agent：0.2 to 0.8 part；Wetting agent：0.6 to 1.1 part；Thickener：0.7 to 1.8 part；Color-change powder：8.0 to 12 parts.
As present invention further optimization, waterborne polyurethane resin is anion polyether type aqueous polyurethane resin.
As present invention further optimization, solvent is ethyl acetate, and ethyl acetate is cation type emulsion.
As present invention further optimization, ph conditioning agents are selected from dimethylethanolamine, trishydroxymethylaminomethane, organic
In Si modification amine, organic alcohol amine and ammonium hydroxide any two or it is a variety of, in the present embodiment be preferably dimethylethanolamine.
As present invention further optimization, Tackified emulsion is selected from aqueous rosin milk, aqueous terpene resin emulsion, aqueous
Any one or more in acrylic acid Tackified emulsion, watersoluble modified tackifier resin emulsion is preferably aqueous pine in the present embodiment
Fragrant lotion.
As present invention further optimization, antifoaming agent is selected from polyethers modified organic silicon antifoaming agent, mineral oil and wax
It is one or more in mixture antifoaming agent and polysiloxane defoaming agent, it is preferably that polyethers modified organic silicon disappears in the present embodiment
Infusion.
As present invention further optimization, wetting agent is polyether-type wetting agent or polyalcohols ethers wetting agent, the present embodiment
In preferably polyether-type wetting agent.
As present invention further optimization, thickener is selected from anionic acrylic polymer, non-ionic polyether polyol
In class thickener, nonionic polyoxyalkylene polyurethane associative thickener and hydrophobically-modified alkali swelling type thickener any one or it is more
Kind, it is preferably anionic acrylic polymer in the present embodiment.
As present invention further optimization, color-change powder is silica.
A kind of preparation method of PU resins synthesis leather, includes the following steps：
(1) ph of solvent is adjusted to 7.2 with ph conditioning agents, adds polyvinyl alcohol, is uniformly dispersed；
(2) rotating speed is controlled at 460 revs/min, is slowly added to the mixture of waterborne polyurethane resin and water, while stirring
It is added, is uniformly mixed；
(3) continue to control rotating speed at 460 revs/min, be slowly added to fatty alcohol polyoxyethylene ether and color-change powder, while stirring
It is added, is uniformly mixed；
(4) ph values are adjusted to 7.2 with ph conditioning agents, then sequentially add Tackified emulsion, antifoaming agent, wetting agent, finally delays
It is slow that thickener is added, it obtains PU resins synthesis and removes from office bottom material；
(5) PU resins synthesis leather bottom material blade coating made from above step will be passed through to be put into microwave tunnel on base cloth layer
Stove carries out heating cure, and microwave tunnel stove divides three sections, and 82 DEG C of front end first segment temperature setting, intermediate second segment is arranged 115 DEG C,
Tail third section is arranged 92 DEG C, and the time of heating cure is 3 minutes；
(6) by heating cure, treated that raw material crosses water cooling, then steam drying, then cold front heavy rain, shapes, winding,
It is packaged to be PU resins synthesis leather.
Embodiment 2
A kind of preparation method of PU resins synthesis leather, including following raw material components and parts by weight：Waterborne polyurethane resin：15
To 25 parts；Fatty alcohol polyoxyethylene ether：10 to 20 parts；Ph conditioning agents：1.0 to 2.0 parts；Polyvinyl alcohol：1.5 to 2.5 parts；Thickening
Lotion：3.0 to 5.0 parts；Water：3.5 to 5.5 parts；Solvent：30 to 50 parts；Antifoaming agent：0.2 to 0.8 part；Wetting agent：0.6 to
1.1 part；Thickener：0.7 to 1.8 part；Color-change powder：8.0 to 12 parts.
As present invention further optimization, waterborne polyurethane resin is anion polyether type aqueous polyurethane resin.
As present invention further optimization, solvent is ethyl acetate, and ethyl acetate is cation type emulsion.
As present invention further optimization, ph conditioning agents are selected from dimethylethanolamine, trishydroxymethylaminomethane, organic
In Si modification amine, organic alcohol amine and ammonium hydroxide any two or it is a variety of, in the present embodiment be preferably trishydroxymethylaminomethane.
As present invention further optimization, Tackified emulsion is selected from aqueous rosin milk, aqueous terpene resin emulsion, aqueous
Any one or more in acrylic acid Tackified emulsion, watersoluble modified tackifier resin emulsion is preferably aqueous terpene in the present embodiment
Olefine resin lotion.
As present invention further optimization, antifoaming agent is selected from polyethers modified organic silicon antifoaming agent, mineral oil and wax
It is one or more in mixture antifoaming agent and polysiloxane defoaming agent, it is preferably the mixture of mineral oil and wax in the present embodiment
Antifoaming agent.
As present invention further optimization, wetting agent is polyether-type wetting agent or polyalcohols ethers wetting agent, the present embodiment
In preferably polyalcohols ethers wetting agent.
As present invention further optimization, thickener is selected from anionic acrylic polymer, non-ionic polyether polyol
In class thickener, nonionic polyoxyalkylene polyurethane associative thickener and hydrophobically-modified alkali swelling type thickener any one or it is more
Kind, it is preferably non-ionic polyether polyol class thickener in the present embodiment.
As present invention further optimization, color-change powder is silica.
A kind of preparation method of PU resins synthesis leather, includes the following steps：
(1) ph of solvent is adjusted to 7.5 with ph conditioning agents, adds polyvinyl alcohol, is uniformly dispersed；
(2) rotating speed is controlled at 470 revs/min, is slowly added to the mixture of waterborne polyurethane resin and water, while stirring
It is added, is uniformly mixed；
(3) continue to control rotating speed at 470 revs/min, be slowly added to fatty alcohol polyoxyethylene ether and color-change powder, while stirring
It is added, is uniformly mixed；
(4) ph values are adjusted to 7.7 with ph conditioning agents, then sequentially add Tackified emulsion, antifoaming agent, wetting agent, finally delays
It is slow that thickener is added, it obtains PU resins synthesis and removes from office bottom material；
(5) PU resins synthesis leather bottom material blade coating made from above step will be passed through to be put into microwave tunnel on base cloth layer
Stove carries out heating cure, and microwave tunnel stove divides three sections, and 85 DEG C of front end first segment temperature setting, intermediate second segment is arranged 120 DEG C,
Tail third section is arranged 95 DEG C, and the time of heating cure is 7 minutes；
(6) by heating cure, treated that raw material crosses water cooling, then steam drying, then cold front heavy rain, shapes, winding,
It is packaged to be PU resins synthesis leather.
Embodiment 3
A kind of preparation method of PU resins synthesis leather, including following raw material components and parts by weight：Waterborne polyurethane resin：15
To 25 parts；Fatty alcohol polyoxyethylene ether：10 to 20 parts；Ph conditioning agents：1.0 to 2.0 parts；Polyvinyl alcohol：1.5 to 2.5 parts；Thickening
Lotion：3.0 to 5.0 parts；Water：3.5 to 5.5 parts；Solvent：30 to 50 parts；Antifoaming agent：0.2 to 0.8 part；Wetting agent：0.6 to 1.1
Part；Thickener：0.7 to 1.8 part；Color-change powder：8.0 to 12 parts.
As present invention further optimization, waterborne polyurethane resin is anion polyether type aqueous polyurethane resin.
As present invention further optimization, solvent is ethyl acetate, and ethyl acetate is cation type emulsion.
As present invention further optimization, ph conditioning agents are selected from dimethylethanolamine, trishydroxymethylaminomethane, organic
In Si modification amine, organic alcohol amine and ammonium hydroxide any two or it is a variety of, in the present embodiment be preferably organic alcohol amine.
As present invention further optimization, Tackified emulsion is selected from aqueous rosin milk, aqueous terpene resin emulsion, aqueous
Any one or more in acrylic acid Tackified emulsion, watersoluble modified tackifier resin emulsion is preferably aqueous change in the present embodiment
Property tackifier resin emulsion.
As present invention further optimization, antifoaming agent is selected from polyethers modified organic silicon antifoaming agent, mineral oil and wax
It is one or more in mixture antifoaming agent and polysiloxane defoaming agent, it is preferably polysiloxane defoaming agent in the present embodiment.
As present invention further optimization, wetting agent is polyether-type wetting agent or polyalcohols ethers wetting agent, the present embodiment
In preferably polyether-type wetting agent.
As present invention further optimization, thickener is selected from anionic acrylic polymer, non-ionic polyether polyol
In class thickener, nonionic polyoxyalkylene polyurethane associative thickener and hydrophobically-modified alkali swelling type thickener any one or it is more
Kind, it is preferably nonionic polyoxyalkylene polyurethane associative thickener in the present embodiment.
As present invention further optimization, color-change powder is silica.
A kind of preparation method of PU resins synthesis leather, includes the following steps：
(1) ph of solvent is adjusted to 7.8 with ph conditioning agents, adds polyvinyl alcohol, is uniformly dispersed；
(2) rotating speed is controlled at 480 revs/min, is slowly added to the mixture of waterborne polyurethane resin and water, while stirring
It is added, is uniformly mixed；
(3) continue to control rotating speed at 480 revs/min, be slowly added to fatty alcohol polyoxyethylene ether and color-change powder, while stirring
It is added, is uniformly mixed；
(4) ph values are adjusted to 8.2 with ph conditioning agents, then sequentially add Tackified emulsion, antifoaming agent, wetting agent, finally delays
It is slow that thickener is added, it obtains PU resins synthesis and removes from office bottom material；
(5) PU resins synthesis leather bottom material blade coating made from above step will be passed through to be put into microwave tunnel on base cloth layer
Stove carries out heating cure, and microwave tunnel stove divides three sections, and 88 DEG C of front end first segment temperature setting, intermediate second segment is arranged 125 DEG C,
Tail third section is arranged 98 DEG C, and the time of heating cure is 10 minutes；
(6) by heating cure, treated that raw material crosses water cooling, then steam drying, then cold front heavy rain, shapes, winding,
It is packaged to be PU resins synthesis leather.
Above three groups of embodiments and traditional handicraft are subjected to Experimental comparison and obtain below table：
It is provided by the present invention relative to the PU resins synthesis leather of traditional handicraft exploitation it can be seen from above table comparison
PU resins synthesis leather preparation method, not will produce toxic, inflammable organic solvent volatile matter, environmental pollution will not be caused,
With stronger bonding dynamics, alkali resistance is strong and water resistance is also significantly better than traditional handicraft, has stronger practicability.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
For personnel it should be appreciated that the present invention is not limited to the above embodiments, described in the above embodiment and specification is only the present invention
Preference, be not intended to limit the present invention, without departing from the spirit and scope of the present invention, the present invention also has various
Changes and improvements, these changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by institute
Attached claims and its equivalent thereof.
Claims (10)
1. a kind of preparation method of PU resins synthesis leather, it is characterised in that：Including following raw material components and parts by weight：Aqueous poly- ammonia
Ester resin：15 to 25 parts；Fatty alcohol polyoxyethylene ether：10 to 20 parts；Ph conditioning agents：1.0 to 2.0 parts；Polyvinyl alcohol：1.5 extremely
2.5 part；Tackified emulsion：3.0 to 5.0 parts；Water：3.5 to 5.5 parts；Solvent：30 to 50 parts；Antifoaming agent：0.2 to 0.8 part；Wetting
Agent：0.6 to 1.1 part；Thickener：0.7 to 1.8 part；Color-change powder：8.0 to 12 parts.
2. the preparation method of PU resins synthesis leather as described in claim 1, it is characterised in that：The waterborne polyurethane resin is
Anion polyether type aqueous polyurethane resin.
3. the preparation method of PU resins synthesis leather as described in claim 1, it is characterised in that：The solvent is ethyl acetate,
And ethyl acetate is cation type emulsion.
4. the preparation method of PU resins synthesis leather as described in claim 1, it is characterised in that：The ph conditioning agents are selected from diformazan
In ethylethanolamine, trishydroxymethylaminomethane, organic-silicon-modified amine, organic alcohol amine and ammonium hydroxide any two or it is a variety of.
5. the preparation method of PU resins synthesis leather as described in claim 1, it is characterised in that：The Tackified emulsion is selected from aqueous
Any one in rosin milk, aqueous terpene resin emulsion, water soluble acrylic acid Tackified emulsion, watersoluble modified tackifier resin emulsion
Or it is a variety of.
6. the preparation method of PU resins synthesis leather as described in claim 1, it is characterised in that：The antifoaming agent is selected from polyethers
It is one or more in the mixture antifoaming agent and polysiloxane defoaming agent of modified organic silicon antifoaming agent, mineral oil and wax.
7. the preparation method of PU resins synthesis leather as described in claim 1, it is characterised in that：The wetting agent moistens for polyether-type
Humectant or polyalcohols ethers wetting agent.
8. the preparation method of PU resins synthesis leather as described in claim 1, it is characterised in that：The thickener is selected from anion
Acrylate copolymer, non-ionic polyether polyol class thickener, nonionic polyoxyalkylene polyurethane associative thickener and hydrophobically modified
Any one or more in alkali swelling type thickener.
9. the preparation method of PU resins synthesis leather as described in claim 1, it is characterised in that：The color-change powder is titanium dioxide
Silicon.
10. a kind of preparation method of PU resins synthesis leather, it is characterised in that：Include the following steps：
(1), the ph of solvent is adjusted to 7.2-7.8 with ph conditioning agents, adds polyvinyl alcohol, is uniformly dispersed；
(2), rotating speed is controlled at 460-480 revs/min, is slowly added to the mixture of waterborne polyurethane resin and water, side stirring
Side is added, and is uniformly mixed；
(3), continue to control rotating speed at 460-480 revs/min, be slowly added to fatty alcohol polyoxyethylene ether and color-change powder, side stirring
Side is added, and is uniformly mixed；
(4), ph values are adjusted to 7.2-8.2 with ph conditioning agents, then sequentially add Tackified emulsion, antifoaming agent, wetting agent, finally delays
It is slow that thickener is added, it obtains PU resins synthesis and removes from office bottom material；
(5), will pass through above step made from PU resins synthesis leather bottom material blade coating on base cloth layer, be put into microwave tunnel stove into
115-125 is arranged in row heating cure, three sections of microwave tunnel stove point, 82-88 DEG C of front end first segment temperature setting, intermediate second segment
DEG C, tail third section is arranged 92-98 DEG C, and the time of heating cure is 3-10 minutes；
(6), by heating cure, treated that raw material crosses water cooling, then steam drying, then cold front heavy rain, shapes, and winds, packaging
Obtain PU resins synthesis leather.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810140173.1A CN108342911A (en) | 2018-02-11 | 2018-02-11 | A kind of preparation method of PU resins synthesis leather |
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| CN201810140173.1A CN108342911A (en) | 2018-02-11 | 2018-02-11 | A kind of preparation method of PU resins synthesis leather |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102926220A (en) * | 2012-10-09 | 2013-02-13 | 李永平 | Environment-friendly PU synthetic leather and method for making same |
| CN106047224A (en) * | 2016-06-22 | 2016-10-26 | 合肥科天水性科技有限责任公司 | Waterborne half-PU leather bottom material and preparation method thereof |
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|---|---|---|---|---|
| CN102926220A (en) * | 2012-10-09 | 2013-02-13 | 李永平 | Environment-friendly PU synthetic leather and method for making same |
| CN106047224A (en) * | 2016-06-22 | 2016-10-26 | 合肥科天水性科技有限责任公司 | Waterborne half-PU leather bottom material and preparation method thereof |
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