CN102943382A - Water-based PU extrusion coating agent for artificial leather - Google Patents
Water-based PU extrusion coating agent for artificial leather Download PDFInfo
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- CN102943382A CN102943382A CN2012103325152A CN201210332515A CN102943382A CN 102943382 A CN102943382 A CN 102943382A CN 2012103325152 A CN2012103325152 A CN 2012103325152A CN 201210332515 A CN201210332515 A CN 201210332515A CN 102943382 A CN102943382 A CN 102943382A
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Abstract
The invention discloses a water-based PU extrusion coating agent for artificial leather, which is characterized by comprising the following raw materials, by weight: 35-45% of an aqueous polyurethane resin, 25-45% of water, 1-3% of an amino silicone oil smoothing agent, 5-10% of an extinction powder, 0.3-1% of an organosilicon flatting agent, 1-3% of an organosilicon defoamer, and 0.5-2% of a water-based polyurethane thickener. The water-based PU extrusion coating agent for artificial leather provided by the invention employs water as a solvent to substitute toxic solvents, such as dimethylformamide and butanone, and has performances of non-combustibility, safety, environment-friendliness and cost saving; and the extrusion coating agent has advantages of good film-forming property, firm bonding, solvent resistance, cold resistance, hydrolysis resistance and thermal aging resistance. The product prepared by the extrusion coating agent provided by the invention has advantages of full handle, good pressure double color effect, fine texture and good permeability, etc.
Description
Technical field
The present invention relates to a kind of used for artificial leather resin, be specifically related to a kind of used for artificial leather water-based PU extrusion coating agent that is applied to artificial leather leading portion dry process.
Background technology
At present, the artificial leather product becomes following popular trend gradually, and artificial leather has been widely used in products such as producing case and bag, clothes, footwear.Artificial leather normally is laminated to by polyurethane resin composition on the base materials such as nonwoven fabric, woven fabric or establishment cloth and the lamellar product of making, its structure comprises base cloth and the urethane resin layer that is attached on the base cloth, and the visual effect of decoration and artificial leather is mainly played on the polyurethane resin top layer.
At present, the used for artificial leather water-based PU extrusion coating agent of selling on the market is generally the agent of solvent-borne type extrusion coating, and it mainly has the following disadvantages:
1, the organic solvent that contains in the agent of solvent-borne type PU extrusion coating can cause the bottom dissolving of artificial leather or artificial leather, and artificial leather feel after treatment is bad;
2, not only cost is higher, smell is larger for the organic solvent that contains in the agent of solvent-borne type PU extrusion coating, easy contaminated environment, and have the potential safety hazards such as inflammable, explosive;
3, the resultant effect such as its visual effect of artificial leather product of preparing of solvent-borne type PU extrusion coating agent, viscosity, stability, hand sense of touch is not good.
Summary of the invention
Goal of the invention: technical problem to be solved by this invention is to overcome the deficiency that the agent of solvent-borne type PU extrusion coating exists in the prior art, provide the resultant effects such as a kind of anti-, modulus, elongation and adhesiveness good, the used for artificial leather water-based PU extrusion coating agent take water as solvent.
Technical scheme: for solving above technical problem, the present invention takes following technical scheme:
The agent of a kind of used for artificial leather water-based PU extrusion coating, it is characterized in that, it is comprised of the raw material of following percentage by weight: waterborne polyurethane resin 35～45%, water 25～45%, amido silicon oil slipping agent 1 ~ 3%, flatting silica 5～10%, organosilicon levelling agent 0.3～1%, silicone defoaming agent 1～3%, aqueous polyurethane thickener 0.5～2%.
Wherein waterborne polyurethane resin is the matrix material of water-based PU extrusion coating of the present invention agent, aliphatic or aromatic polyaminoester emulsion, aliphatic or aromatic polyurethane dispersing liquid be can be preferably or aliphatic or aromatic aqueous polyurethane are, it is take water as retarder thinner, thereby avoided the employing organic solvent as diluent, environmental protection, low toxicity.
The preferred nonionic polyurethane polymer of aqueous polyurethane thickener wherein, its thickening efficiency is high, and it can make waterborne polyurethane resin reach certain viscosity, the standard that it is suited the requirements, viscosity in moderate shear and the high shearing scope is provided, and has excellent levelling, flowability.
Wherein the water as retarder thinner is common running water, has avoided the use of the organic solvents such as DMF, butanone, environmental protection and saving cost.
Beneficial effect: used for artificial leather water-based PU extrusion coating provided by the invention agent has overcome the shortcoming of solvent-borne type PU extrusion coating agent, its adhesive force is good, feel and high comprehensive performance, fine and smooth, plentiful with the artificial leather product feel of its production, press become that two-color effect is unique, waterproof and permeability be good.And the agent of water-based PU extrusion coating has also that baking temperature is low, production cost is low, and the organic solvent-free volatilization is beneficial to the advantages such as environmental protection.
The specific embodiment
Below in conjunction with specific embodiment, further illustrate the present invention, should understand these embodiment only is used for explanation the present invention and is not used in and limits the scope of the invention, after having read the present invention, those skilled in the art all fall within the application's claims limited range to the modification of the various equivalent form of values of the present invention.
Embodiment 1
1, the agent of used for artificial leather water-based PU extrusion coating is comprised of following raw materials according: 40 kilograms of aliphatic polyurathane emulsions (30% solid content), 40 kilograms in running water, 2 kilograms of amido silicon oil slipping agents, 8 kilograms of flatting silicas, 1 kilogram of organosilicon levelling agent, 2 kilograms of silicone defoaming agents, 2 kilograms of aqueous polyurethane thickeners.
2, the preparation method of inventor's fabricate-leather use PU extrusion coating agent is as follows:
1. choose 40 kilograms of aliphatic polyurathane emulsions (30% solid content), 40 kilograms in running water, 2 kilograms of amido silicon oil slipping agents in above ratio, 8 kilograms of flatting silicas, 1 kilogram of organosilicon levelling agent, 2 kilograms of silicone defoaming agents, stirred 2 hours, fully mixing, for subsequent use;
2. get mixture grinding, filtration that 1. step reacts gained;
3. get step and 2. filter the mixture that obtains, add in proportion 2 kilograms of aqueous polyurethane thickeners, stir, namely get the agent of used for artificial leather water-based extrusion coating.
3, experiment detects the technical performance index by the 2 PU extrusion coating agent that prepare, and concrete experimental result is as shown in table 1:
The technical performance testing result of table 1 water-based PU extrusion coating agent
| Project | Index | Testing result |
| PH value | 6.5-7.5 | 7.0 |
| Outward appearance | The white thick liquid | The white thick liquid |
| Stability | Without precipitation, nondiscolouring in 6 months | Without precipitation, nondiscolouring in 6 months |
| Viscosity (cps) | 1500-2500 | 2000 |
| Solid content (%) | 35±1 | 35 |
1, the used solvent of extrusion coating agent provided by the invention is water, have do not fire, safety, environmental protection, cost-effective performance.
2, extrusion coating agent provided by the invention, show through experimental study, each component proportion that forms the extrusion coating agent is scientific and reasonable, mutually coordination, acting in conjunction between component, the extrusion coating agent have good film-forming property, bonding firmly, the anti-solvent of coating, cold-resistant, hydrolysis, heat-proof aging advantage, the leather surface of the artificial leather that makes with extrusion coating agent provided by the invention presses that to become effect unique, waterproof, ventilative.The advantages such as the finished product made from extrusion coating agent provided by the invention has good hand feeling, and quality is fine and smooth, and gas permeability and glossiness are good.
3, the agent of this water-based PU extrusion coating is used at existing artificial leather production line, need not to change the production technology and equipments of existing artificial leather, can not increase the production cost of artificial leather product.
4, the preparation method of water-based PU extrusion coating provided by the invention agent is workable, production efficiency is high, cost is low, environmental protection, can realize industrialized production.
Used for artificial leather water-based PU extrusion coating provided by the invention agent has overcome the shortcoming of solvent-borne type PU extrusion coating agent, its adhesive force is good, feel and high comprehensive performance, fine and smooth, plentiful with the artificial leather product feel of its production, press become that two-color effect is unique, waterproof and permeability be good.And the agent of water-based PU extrusion coating has also that baking temperature is low, production cost is low, and the organic solvent-free volatilization is beneficial to the advantages such as environmental protection.
Claims (5)
1. used for artificial leather water-based PU extrusion coating agent, it is characterized in that, it is comprised of the raw material of following percentage by weight: waterborne polyurethane resin 35～45%, water 25～45%, amido silicon oil slipping agent 1 ~ 3%, flatting silica 5～10%, organosilicon levelling agent 0.3～1%, silicone defoaming agent 1～3%, aqueous polyurethane thickener 0.5～2%.
2. used for artificial leather water-based extrusion coating according to claim 1 agent is characterized in that, described waterborne polyurethane resin is aliphatic polyurathane emulsion, aliphatic polyurethane dispersion liquid or the aliphatic polyurethane aqueous solution.
3. used for artificial leather water-based extrusion coating according to claim 1 agent is characterized in that, described waterborne polyurethane resin is aromatic urethane emulsion, aromatic urethane dispersion liquid or the aromatic urethane aqueous solution.
4. used for artificial leather water-based extrusion coating according to claim 1 agent is characterized in that described aqueous polyurethane thickener is the nonionic polyurethane polymer.
5. used for artificial leather water-based extrusion coating according to claim 1 agent is characterized in that described water is running water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103325152A CN102943382A (en) | 2012-09-11 | 2012-09-11 | Water-based PU extrusion coating agent for artificial leather |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103325152A CN102943382A (en) | 2012-09-11 | 2012-09-11 | Water-based PU extrusion coating agent for artificial leather |
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| Publication Number | Publication Date |
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| CN102943382A true CN102943382A (en) | 2013-02-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012103325152A Pending CN102943382A (en) | 2012-09-11 | 2012-09-11 | Water-based PU extrusion coating agent for artificial leather |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104032578A (en) * | 2014-06-26 | 2014-09-10 | 江苏宝泽高分子材料股份有限公司 | Waterborne oily leather treatment agent for synthetic leather and preparation method of leather treatment agent |
| CN106592246A (en) * | 2016-12-14 | 2017-04-26 | 嘉兴禾大科技化学有限公司 | Synthetic leather water-based mist-surface skin-feeling high-temperature-resistant pretreatment agent and preparation process thereof |
| CN106883747A (en) * | 2017-03-20 | 2017-06-23 | 合肥科天水性科技有限责任公司 | A kind of water and oil applicable type woodenware renovation white paint and preparation method thereof |
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- 2012-09-11 CN CN2012103325152A patent/CN102943382A/en active Pending
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| JPH04209873A (en) * | 1990-12-05 | 1992-07-31 | Kuraray Co Ltd | Production of leather-like sheetlike material |
| JPH08144175A (en) * | 1994-11-16 | 1996-06-04 | Showa Shell Sekiyu Kk | Highly oil retaining collagen composite fabric and its production |
| CN101597863A (en) * | 2009-07-07 | 2009-12-09 | 江苏宝泽高分子材料股份有限公司 | Use for synthetic leather water-based PU fog face rubbing surface treatment place's agent and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104032578A (en) * | 2014-06-26 | 2014-09-10 | 江苏宝泽高分子材料股份有限公司 | Waterborne oily leather treatment agent for synthetic leather and preparation method of leather treatment agent |
| CN106592246A (en) * | 2016-12-14 | 2017-04-26 | 嘉兴禾大科技化学有限公司 | Synthetic leather water-based mist-surface skin-feeling high-temperature-resistant pretreatment agent and preparation process thereof |
| CN106883747A (en) * | 2017-03-20 | 2017-06-23 | 合肥科天水性科技有限责任公司 | A kind of water and oil applicable type woodenware renovation white paint and preparation method thereof |
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Application publication date: 20130227 |