CN101691695A - Water PU earthquake crack resin for synthetic leather - Google Patents
Water PU earthquake crack resin for synthetic leather Download PDFInfo
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- CN101691695A CN101691695A CN200910036250A CN200910036250A CN101691695A CN 101691695 A CN101691695 A CN 101691695A CN 200910036250 A CN200910036250 A CN 200910036250A CN 200910036250 A CN200910036250 A CN 200910036250A CN 101691695 A CN101691695 A CN 101691695A
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Abstract
The invention discloses a water PU earthquake crack resin for synthetic leather and consists of the following raw materials in weight percent: 20-30% of water baking finish resin, 2-5% of water polyurethane (PU), 50-60% of water, 10-15% of silica matting agent, 0.5-1% of organic silicon flatting agent, 2-5% of organic silicon defoaming agent, and 0.5-2% of water PU thickening agent. The water PU shatter crack resin for synthetic leather provided by the invention takes water as the solvent, with toxic solvents such as dimethyl formamide, butanone and the like being substituted, has properties of non-combustibility, safety, environment protection and cost saving, and the advantages of good film forming property, firm bonding, solvent-resisting, cold-resisting, hydrolysis-resisting, thermal ageing-resisting of the coating. The product made by the inventive resin has unique earthquake crack effect, strong real leather effect and good water-proof and breathable performances.
Description
Technical field
The present invention relates to a kind of use for synthetic leather water-based PU resin, particularly a kind of water PU earthquake crack resin for synthetic leather that is applied to synthetic leather rear section technology.
Background technology
Along with the raising of people's life water product, people pursue high-quality daily product gradually, and the demand of leather products is more and more, and along with the enhancing of animal protection consciousness, animal corium can not satisfy people's demand.At present, the synthetic leather product becomes following popular trend gradually, synthetic leather has been widely used in products such as producing case and bag, clothes, footwear, the base fabric of PU leather is the good canvas PU material of tensile strength, except can being coated in base fabric top, in the middle of base fabric can also being included in, make it outward appearance and can't see the existence of base fabric, it is good that PU leather has physical property, and anti-complications, pliability is good, tensile strength is big, have gas permeability, so PU removes from office and is widely used in the lining of footwear or the position that case and bag bear weight.
At present, the use for synthetic leather resin of selling on the market is generally solvent type resin, and it mainly has the following disadvantages:
1, the organic solvent that contains in the solvent type resin can cause the bottom dissolving of synthetic leather or artificial leather, and synthetic leather feel after treatment is bad;
2, not only cost is higher, smell is bigger for the organic solvent that contains in the solvent type resin, easy contaminated environment, and have potential safety hazards such as inflammable, explosive;
3, the synthetic leather product for preparing of solvent type resin, resultant effects such as its viscosity, stability, hand sense of touch are not good.
Summary of the invention
Goal of the invention: technical problem to be solved by this invention is to overcome the deficiency that solvent type resin in the prior art exists, and provides a kind of and anti-ly opens, resultant effects such as modulus, elongation and adhesiveness are good, are the water PU earthquake crack resin for synthetic leather resin of solvent with water.
Technical scheme: for solving above technical problem, the present invention takes following technical scheme:
A kind of water PU earthquake crack resin for synthetic leather, it is made up of following raw materials by weight percent: water-based stoving paint resin 20～30%, aqueous polyurethane 2～5%, water 50～60%, silica flatting silica 10～15%, organosilicon levelling agent 0.5～1%, silicone defoaming agent 2～5%, aqueous polyurethane thickener 0.5～2%.
As preferred version, water PU earthquake crack resin for synthetic leather provided by the invention, form by following raw materials by weight percent: water-based stoving paint resin 25～30%, aqueous polyurethane 3～4%, water 50～60%, silica flatting silica 10～12%, organosilicon levelling agent 0.5～1%, silicone defoaming agent 2～3%, aqueous polyurethane thickener 1～2%.
Matrix resin of the present invention is the water-based stoving paint resin, the water-based stoving paint resin can be carboxy acrylic and the aliphatic polyurethane grafting forms, wherein the water-based stoving paint resin can with the aqueous polyurethane cross-linking reaction, prepare water-based stoving paint, be fit to preparation the high synthetic leather of apparent index requests such as gloss, richness.Water-based stoving paint resin of the present invention has excellent crosslinked hardness and recoatability advantage preferably, can adopt wetly to bump wet or wet and bump dried prepared.Water-based stoving paint resin provided by the invention can be shrunk to different crackles according to the release liners lines, have unique earthquake crackle effect, and water-based stoving paint resin polarity is bigger, it is diluent with water, avoided the use of organic solvents such as dimethyl formamide, butanone, environmental protection and saving cost.
The preferred nonionic polyurethane polymer of aqueous polyurethane thickener wherein, its thickening efficiency height, 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 organic solvents such as dimethyl formamide, butanone, environmental protection and saving cost.
The preparation method of water PU earthquake crack resin for synthetic leather provided by the invention may further comprise the steps:
1. choose the water-based stoving paint resin in proportion, aqueous polyurethane, the silica flatting silica, the organosilicon levelling agent, silicone defoaming agent and water mix, stirred 2 to 3 hours, fully mixing, standby;
2. get mixture grinding, filtration that 1. step reacts gained;
3. get step and 2. filter the mixture that obtains, add aqueous polyurethane thickener in proportion, stir and promptly get described water PU earthquake crack resin for synthetic leather.
The used water of above preparation method can be common running water, and aqueous polyurethane thickener can be the nonionic polyurethane polymer.
Beneficial effect: water-based PU earthquake crack resin provided by the invention is compared with solvent-borne type PU resin in the prior art has following advantage:
1, the used solvent of earthquake crack resin provided by the invention is a water, have do not fire, safety, environmental protection, cost-effective performance.
2, earthquake crack resin provided by the invention, show through experimental study, each set of dispense of forming earthquake crack resin is than scientific and reasonable, coordinate mutually between component, acting in conjunction, earthquake crack resin have good film-forming property, bonding firmly, the anti-solvent of coating, cold-resistant, hydrolysis, heat-proof aging advantage; The finished product of making has does not influence that its leather surface is former to produce effect, and resin can be shrunk to different crackles according to the release liners lines, crackle nature, effect uniqueness, quality exquisiteness, good permeability; It is good to use aspect resultant effects such as its feel of synthetic leather that this resins obtains, waterproof, bonding;
3, this water-based PU earthquake crack resin is used on existing synthetic leather production line, be need not to change the production technology and the equipment of existing synthetic leather, can not increase the synthetic leather production cost of products.
4, the preparation method of water-based PU earthquake crack resin provided by the invention is workable, production efficiency is high, cost is low, environmental protection, can realize industrialized production.
The specific embodiment
Below in conjunction with specific embodiment, further illustrate the present invention, should understand these embodiment only is used to the present invention is described and is not used in and limit the scope of the invention, after having read the present invention, those skilled in the art all fall within the application's claims institute restricted portion to the modification of the various equivalent form of values of the present invention.
Embodiment 1
1, water PU earthquake crack resin for synthetic leather is made up of following raw materials according: water-based stoving paint resin double centner, 10 kilograms of aqueous polyurethanes (30% solid content), 250 kilograms in running water, 50 kilograms of silica flatting silicas, 12 kilograms of aqueous polyurethane thickeners, 10 kilograms of silicone defoaming agents, 4 kilograms of organosilicon levelling agents.
2, the preparation method of water PU earthquake crack resin for synthetic leather of the present invention is as follows:
1. choose water-based stoving paint resin double centner in above ratio, 10 kilograms of aqueous polyurethanes (30% solid content), 250 kilograms in running water, 50 kilograms of silica flatting silicas, 10 kilograms of silicone defoaming agents, 4 kilograms of organosilicon levelling agents, mix, stirred 2 hours, fully mixing, standby;
2. get mixture grinding, filtration that 1. step reacts gained;
3. get step and 2. filter the mixture that obtains and add 12 kilograms of aqueous polyurethane thickeners in proportion, stir promptly.
3, experiment detects the technical performance index by the 2 PU earthquake crack resins that prepare, and concrete experimental result is as shown in table 1:
The technical performance testing result of table 1PU earthquake crack resin
| Project | Detect index | Testing result |
| PH value | ??6.5～8 | ??6.8 |
| Outward appearance | The oyster white thick liquid | The oyster white thick liquid |
| Stability | There are not precipitation, nondiscolouring in 6 months | There are not precipitation, nondiscolouring in 6 months |
| Viscosity (cps) | ??2500～3000 | ??2600 |
| Solid content (%) | ??20±1 | ??20 |
Embodiment 2
1, water PU earthquake crack resin for synthetic leather is made up of following raw materials according: 60 kilograms of water-based stoving paint resins, 10 kilograms of aqueous polyurethanes (30% solid content), 120 kilograms in running water, 30 kilograms of silica flatting silicas, 4 kilograms of aqueous polyurethane thickeners, 10 kilograms of silicone defoaming agents, 2 kilograms of organosilicon levelling agents.
2, the preparation method of water PU earthquake crack resin for synthetic leather of the present invention is as follows:
1. choose 60 kilograms of water-based stoving paint resins in above ratio, 10 kilograms of aqueous polyurethanes (30% solid content), 120 kilograms in running water, 30 kilograms of silica flatting silicas, 10 kilograms of silicone defoaming agents, 2 kilograms of organosilicon levelling agents, mix, stirred 2 hours, fully mixing, standby;
2. get mixture grinding, filtration that 1. step reacts gained;
3. get step and 2. filter the mixture that obtains and add 4 kilograms of aqueous polyurethane thickeners in proportion, stir promptly.
3, experiment detects the technical performance index by the 2 PU earthquake crack resins that prepare, and concrete experimental result is as shown in table 2:
The technical performance testing result of table 2PU earthquake crack resin
| Project | Detect index | Testing result |
| PH value | ??6.5～8 | ??6.6 |
| Outward appearance | The oyster white thick liquid | The oyster white thick liquid |
| Project | Detect index | Testing result |
| Stability | There are not precipitation, nondiscolouring in 6 months | There are not precipitation, nondiscolouring in 6 months |
| Viscosity (cps) | ??2500～3000 | ??2550 |
| Solid content (%) | ??20±1 | ??19.5 |
Embodiment 3
1, water PU earthquake crack resin for synthetic leather is made up of following raw materials according: 40 kilograms of water-based stoving paint resins, 6 kilograms of aqueous polyurethanes (30% solid content), the running water double centner, 20 kilograms of silica flatting silicas, 2 kilograms in nonionic polyurethane polymer, 4 kilograms of silicone defoaming agents, 1 kilogram of organosilicon levelling agent.
2, the preparation method of water PU earthquake crack resin for synthetic leather of the present invention is as follows:
1. choose 40 kilograms of water-based stoving paint resins in above ratio, 6 kilograms of aqueous polyurethanes (30% solid content), running water double centner, 20 kilograms of silica flatting silicas, 4 kilograms of silicone defoaming agents, 1 kilogram of organosilicon levelling agent, mix, stirred 2 hours, fully mixing, standby;
2. get mixture grinding, filtration that 1. step reacts gained;
3. get step and 2. filter the mixture that obtains and add 2 kilograms in nonionic polyurethane polymer in proportion, stir promptly.
3, experiment detects the technical performance index by the 2 PU earthquake crack resins that prepare, and concrete experimental result is as shown in table 3:
The technical performance testing result of table 3PU earthquake crack resin
| Project | Detect index | Testing result |
| PH value | ??6.5～8 | ??7.1 |
| Outward appearance | The oyster white thick liquid | The oyster white thick liquid |
| Stability | There are not precipitation, nondiscolouring in 6 months | There are not precipitation, nondiscolouring in 6 months |
| Viscosity (cps) | ??2500～3000 | ??2500 |
| Solid content (%) | ??20±1 | ??19 |
Embodiment 4
1, water PU earthquake crack resin for synthetic leather is made up of following raw materials according: 50 kilograms of water-based stoving paint resins, 5 kilograms of aqueous polyurethanes (30% solid content), 80 kilograms in running water, 20 kilograms of silica flatting silicas, 2 kilograms in nonionic polyurethane polymer, 4 kilograms of silicone defoaming agents, 1 kilogram of organosilicon levelling agent.
2, the preparation method of water PU earthquake crack resin for synthetic leather of the present invention is as follows:
1. choose 50 kilograms of water-based stoving paint resins in above ratio, 5 kilograms of aqueous polyurethanes (30% solid content), 80 kilograms in running water, 25 kilograms of silica flatting silicas, 5 kilograms of silicone defoaming agents, 1 kilogram of organosilicon levelling agent, mix, stirred 2 hours, fully mixing, standby;
2. get mixture grinding, filtration that 1. step reacts gained;
3. get step and 2. filter the mixture that obtains and add 3 kilograms in nonionic polyurethane polymer in proportion, stir promptly.
3, experiment detects the technical performance index by the 2 PU earthquake crack resins that prepare, and concrete experimental result is as shown in table 4:
The technical performance testing result of table 4PU earthquake crack resin
| Project | Detect index | Testing result |
| PH value | ??6.5～8 | ??7.3 |
| Outward appearance | The oyster white thick liquid | The oyster white thick liquid |
| Stability | There are not precipitation, nondiscolouring in 6 months | There are not precipitation, nondiscolouring in 6 months |
| Viscosity (cps) | ??2500～3000 | ??2700 |
| Solid content (%) | ??20±1 | ??20.6 |
Water PU earthquake crack resin for synthetic leather provided by the invention has overcome the shortcoming of solvent type PU resin, its adhesive force, feel and comprehensive function admirable, with the synthetic leather product of its production have that unique earthquake crackle effect, leather effect are strong, waterproof and permeability be good. And water-based PU earthquake crack resin 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 (4)
1. water PU earthquake crack resin for synthetic leather, it is characterized in that, it is made up of following raw materials by weight percent: water-based stoving paint resin 20～30%, aqueous polyurethane 2～5%, water 50～60%, silica flatting silica 10～15%, organosilicon levelling agent 0.5～1%, silicone defoaming agent 2～5%, aqueous polyurethane thickener 0.5～2%.
2. water PU earthquake crack resin for synthetic leather according to claim 1, it is characterized in that: it is made up of following raw materials by weight percent: water-based stoving paint resin 25～30%, aqueous polyurethane 3～4%, water 50～60%, silica flatting silica 10～12%, organosilicon levelling agent 0.5～1%, silicone defoaming agent 2～3%, aqueous polyurethane thickener 1～2%.
3. water PU earthquake crack resin for synthetic leather according to claim 1 and 2 is characterized in that: described aqueous polyurethane thickener is the nonionic polyurethane polymer.
4. water PU earthquake crack resin for synthetic leather according to claim 1 and 2 is characterized in that: described water is running water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910036250A CN101691695A (en) | 2009-10-09 | 2009-10-09 | Water PU earthquake crack resin for synthetic leather |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910036250A CN101691695A (en) | 2009-10-09 | 2009-10-09 | Water PU earthquake crack resin for synthetic leather |
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| Publication Number | Publication Date |
|---|---|
| CN101691695A true CN101691695A (en) | 2010-04-07 |
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|---|---|---|---|
| CN200910036250A Pending CN101691695A (en) | 2009-10-09 | 2009-10-09 | Water PU earthquake crack resin for synthetic leather |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102409546A (en) * | 2011-08-01 | 2012-04-11 | 吴江三辉纺织有限公司 | Earthquake crack synthetic leather with high-light contracted patterns |
| CN102943384A (en) * | 2012-09-11 | 2013-02-27 | 江苏宝泽高分子材料股份有限公司 | Water-based PU anechoic coating agent for artificial leather |
| CN102943386A (en) * | 2012-09-11 | 2013-02-27 | 江苏宝泽高分子材料股份有限公司 | Water-based PU net-shaped crack coating agent for artificial leather |
| CN104674563A (en) * | 2015-02-13 | 2015-06-03 | 福建宝利特集团有限公司 | Artificial leather and preparation method thereof |
-
2009
- 2009-10-09 CN CN200910036250A patent/CN101691695A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102409546A (en) * | 2011-08-01 | 2012-04-11 | 吴江三辉纺织有限公司 | Earthquake crack synthetic leather with high-light contracted patterns |
| CN102943384A (en) * | 2012-09-11 | 2013-02-27 | 江苏宝泽高分子材料股份有限公司 | Water-based PU anechoic coating agent for artificial leather |
| CN102943386A (en) * | 2012-09-11 | 2013-02-27 | 江苏宝泽高分子材料股份有限公司 | Water-based PU net-shaped crack coating agent for artificial leather |
| CN104674563A (en) * | 2015-02-13 | 2015-06-03 | 福建宝利特集团有限公司 | Artificial leather and preparation method thereof |
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Application publication date: 20100407 |