CN101666039A - Water-soluble PU nubuck low-temperature foamex for synthetic leather - Google Patents

Water-soluble PU nubuck low-temperature foamex for synthetic leather Download PDF

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Publication number
CN101666039A
CN101666039A CN200910036253A CN200910036253A CN101666039A CN 101666039 A CN101666039 A CN 101666039A CN 200910036253 A CN200910036253 A CN 200910036253A CN 200910036253 A CN200910036253 A CN 200910036253A CN 101666039 A CN101666039 A CN 101666039A
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Prior art keywords
water
low
temperature
nubuck
foamex
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CN200910036253A
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Chinese (zh)
Inventor
时云刚
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Jiangsu Baoze Polymer Materials Co Ltd
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Jiangsu Baoze Polymer Materials Co Ltd
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Priority to CN200910036253A priority Critical patent/CN101666039A/en
Publication of CN101666039A publication Critical patent/CN101666039A/en
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Abstract

The invention discloses water-soluble PU nubuck low-temperature foamex for synthetic leather, prepared by the following raw materials in percentage by weight: 30-40 percent of water-soluble polyurethane, 40-50 percent of water, 2-10 percent of low-temperature nubuck foam powder, 2-5 percent of organosilicon levelling agent, 2-5 percent of organosilicon antifoaming agent and 0.5-2 percent of water-soluble polyurethane thickener. The mixture ratio of each component of the water-soluble PU nubuck low-temperature foamex for synthetic leather is scientific and reasonable, and the components mutually coordinate and jointly act. The nubuck low-temperature foamex has the advantages of good film reforming property and firm adhesion, and coating is resistant to solvent, cold, hydrolysis and thermalageing. The original effect of the leather surface of a finished product prepared from the water-soluble PU nubuck low-temperature foamex can not be influenced; after the leather surface is treated bythe foamex, low-temperature foaming is carried out to produce nubuck leather, and therefore, the effect of the leather surface is unique; moreover, the synthetic leather has exquisite texture, good air permeability and excellent resultant effect of hand feeling, water proofing, adhesion and the like.

Description

Water-soluble PU nubuck low-temperature foamex for synthetic leather
Technical field
The present invention relates to a kind of water-soluble PU nubuck low-temperature foamex for synthetic leather, be specifically related to a kind of water-soluble PU nubuck low-temperature foamex 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 sheep nubuck low-temperature Foamex of selling on the market is generally solvent-borne type sheep nubuck low-temperature Foamex, and it mainly has the following disadvantages:
1, the organic solvent that contains in the solvent-borne type sheep nubuck low-temperature Foamex 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-borne type sheep nubuck low-temperature Foamex, easy contaminated environment, and have potential safety hazards such as inflammable, explosive;
3, the synthetic leather product for preparing of solvent-borne type sheep nubuck low-temperature Foamex, 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 exists, and provides a kind of and anti-ly opens, resultant effects such as modulus, elongation and adhesiveness are good, are the water-soluble PU nubuck low-temperature foamex for synthetic leather of solvent with water.
Technical scheme, for solving above technical problem, the present invention takes following technical scheme:
A kind of water-soluble PU nubuck low-temperature foamex for synthetic leather, it is made up of following raw materials by weight percent: aqueous polyurethane 30~40%, water 40~50%, low temperature sheep crust foam powder 2~10%, organosilicon levelling agent 2~5%, silicone defoaming agent 2~5%, aqueous polyurethane thickener 0.5~2%.
As preferred version, water-soluble PU nubuck low-temperature foamex for synthetic leather of the present invention, it is made up of following raw materials by weight percent: aqueous polyurethane 35~40%, water 40~50%, low temperature sheep crust foam powder 3~5%, organosilicon levelling agent 3~5%, silicone defoaming agent 3~5%, aqueous polyurethane thickener 1~2%.
Wherein waterborne polyurethane resin is the matrix resin of water-based PU sheep nubuck low-temperature Foamex of the present invention, aliphatic or aromatic polyaminoester emulsion, aliphatic or aromatic polyurethane dispersing liquid be can be preferably or aliphatic or aromatic aqueous polyurethane are, PU sheep nubuck low-temperature Foamex provided by the invention is retarder thinner with water, 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 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.
In the water-based PU sheep nubuck low-temperature Foamex of the present invention, added the lower sheep crust powder of blowing temperature, steady quality is the synthetic good auxiliary agent of leather, and synthetic leather has the quality exquisiteness, the advantage of good permeability behind the adding sheep crust powder.
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-soluble PU nubuck low-temperature foamex for synthetic leather provided by the invention may further comprise the steps:
1. choose aqueous polyurethane in proportion, low temperature sheep crust foam powder, 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-soluble PU nubuck low-temperature foamex 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 sheep nubuck low-temperature Foamex provided by the invention is compared with solvent-borne type PU Foamex in the prior art has following advantage:
1, the used solvent of sheep nubuck low-temperature Foamex provided by the invention is a water, have do not fire, safety, environmental protection, cost-effective performance.
2, sheep nubuck low-temperature Foamex provided by the invention, show through experimental study, each set of dispense of forming sheep nubuck low-temperature Foamex is than scientific and reasonable, coordinate mutually between component, acting in conjunction, sheep nubuck low-temperature Foamex has good film-forming property, bonding firmly, the anti-solvent of coating, cold-resistant, hydrolysis, the heat-proof aging advantage, the finished product made from water-based PU sheep nubuck low-temperature Foamex provided by the invention has does not influence that its leather surface is former to produce effect, after leather surface is handled this agent, low-temp foaming is produced sheep Ba Ge, the effect uniqueness, and its leather quality exquisiteness of synthetic leather, good permeability, feel, waterproof, aspect resultant effects such as bonding are good.
3, this water-based PU sheep nubuck low-temperature Foamex 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 sheep nubuck low-temperature Foamex 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-soluble PU nubuck low-temperature foamex for synthetic leather is made up of following raw material: aqueous polyurethane (30% solid content) double centner, the ordinary tap water double centner, 4 kilograms in low temperature sheep crust powder, 8 kilograms of aqueous polyurethane thickeners, 1 kilogram of silicone defoaming agent, 5 kilograms of organosilicon levelling agents.
2, the preparation method of water-soluble PU nubuck low-temperature foamex for synthetic leather of the present invention is as follows:
1. choose aqueous polyurethane (30% solid content) double centner in proportion, the ordinary tap water double centner, 4 kilograms in low temperature sheep crust powder, 1 kilogram of silicone defoaming agent, 5 kilograms of organosilicon levelling agents 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 8 kilograms of aqueous polyurethane thickeners in proportion, stir and promptly get described water-soluble PU nubuck low-temperature foamex for synthetic leather.
3, experiment detects the technical performance index by the 2 water-based PU sheep nubuck low-temperature Foamexes that prepare, and concrete experimental result is as shown in table 1:
The technical performance testing result of table 1PU sheep nubuck low-temperature Foamex
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) ??2000~2500 ??2300
Solid content (%) ??20±1 ??21
Embodiment 2
1, water-soluble PU nubuck low-temperature foamex for synthetic leather is made up of following raw material: 80 kilograms of aliphatic polyurethane emulsions (30% solid content), the ordinary tap water double centner, 16 kilograms in low temperature sheep crust powder, 4 kilograms of aqueous polyurethane thickeners, 8 kilograms of silicone defoaming agents, 10 kilograms of organosilicon levelling agents.
2, the preparation method of water-soluble PU nubuck low-temperature foamex for synthetic leather of the present invention is as follows:
1. choose 80 kilograms of aliphatic polyurethane emulsions (30% solid content) in proportion, the ordinary tap water double centner, 16 kilograms in low temperature sheep crust powder, 8 kilograms of silicone defoaming agents, 10 kilograms of organosilicon levelling agents 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 4 kilograms of aqueous polyurethane thickeners in proportion, stir and promptly get described water-soluble PU nubuck low-temperature foamex for synthetic leather.
3, experiment detects the technical performance index by the 2 water-based PU sheep nubuck low-temperature Foamexes that prepare, and concrete experimental result is as shown in table 1:
The technical performance testing result of table 2PU sheep nubuck low-temperature Foamex
Project Detect index Testing result
PH value ??6.5~8 ??7.0
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) ??2000~2500 ??2100
Solid content (%) ??20±1 ??20.2
Embodiment 3
1, water-soluble PU nubuck low-temperature foamex for synthetic leather is made up of following raw material: 60 kilograms of aromatic urethane emulsions (30% solid content), 80 kilograms of ordinary tap water, 4 kilograms in low temperature sheep crust powder, 2 kilograms in nonionic polyurethane polymer, 4 kilograms of silicone defoaming agents, 4 kilograms of organosilicon levelling agents.
2, the preparation method of water-soluble PU nubuck low-temperature foamex for synthetic leather of the present invention is as follows:
1. choose 60 kilograms of aromatic urethane emulsions (30% solid content) in proportion, 80 kilograms of ordinary tap water, 4 kilograms in low temperature sheep crust powder, 4 kilograms of silicone defoaming agents, 4 kilograms of organosilicon levelling agents 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 2 kilograms in nonionic polyurethane polymer in proportion, stir and promptly get described water-soluble PU nubuck low-temperature foamex for synthetic leather.
3, experiment detects the technical performance index by the 2 water-based PU sheep nubuck low-temperature Foamexes that prepare, and concrete experimental result is as shown in table 1:
The technical performance testing result of table 3PU sheep nubuck low-temperature Foamex
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) ??2000~2500 ??2200
Solid content (%) ??20±1 ??20.6
Embodiment 4
1, water-soluble PU nubuck low-temperature foamex for synthetic leather is made up of following raw material: 70 kilograms of aliphatic polyurethane dispersion liquids (30% solid content), the ordinary tap water double centner, 10 kilograms in low temperature sheep crust powder, 2 kilograms in nonionic polyurethane polymer, 6 kilograms of silicone defoaming agents, 6 kilograms of organosilicon levelling agents.
2, the preparation method of water-soluble PU nubuck low-temperature foamex for synthetic leather of the present invention is as follows:
1. choose 70 kilograms of aliphatic polyurethane dispersion liquids (30% solid content) in proportion, the ordinary tap water double centner, 10 kilograms in low temperature sheep crust powder, 6 kilograms of silicone defoaming agents, 6 kilograms of organosilicon levelling agents 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 2 kilograms in nonionic polyurethane polymer in proportion, stir and promptly get described water-soluble PU nubuck low-temperature foamex for synthetic leather.
3, experiment detects the technical performance index by the 2 water-based PU sheep nubuck low-temperature Foamexes that prepare, and concrete experimental result is as shown in table 4:
The technical performance testing result of table 4PU sheep nubuck low-temperature Foamex
Project Detect index Testing result
PH value ??6.5~8 ??6.9
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) ??2000~2500 ??2150
Solid content (%) ??20±1 ??21
Embodiment 5
1, water-soluble PU nubuck low-temperature foamex for synthetic leather is made up of following raw material: 80 kilograms of the aromatic urethane aqueous solution (30% solid content), the ordinary tap water double centner, 8 kilograms in low temperature sheep crust powder, 3 kilograms in nonionic polyurethane polymer, 5 kilograms of silicone defoaming agents, 8 kilograms of organosilicon levelling agents.
2, the preparation method of water-soluble PU nubuck low-temperature foamex for synthetic leather of the present invention is as follows:
1. choose 80 kilograms of the aromatic urethane aqueous solution (30% solid content) in proportion, the ordinary tap water double centner, 8 kilograms in low temperature sheep crust powder, 5 kilograms of silicone defoaming agents, 8 kilograms of organosilicon levelling agents 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 3 kilograms in nonionic polyurethane polymer in proportion, stir and promptly get described water-soluble PU nubuck low-temperature foamex for synthetic leather.
3, experiment detects the technical performance index by the 2 water-based PU sheep nubuck low-temperature Foamexes that prepare, and concrete experimental result is as shown in table 4:
The technical performance testing result of table 5PU sheep nubuck low-temperature Foamex
Project Detect index Testing result
PH value ??6.5~8 ??7.5
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) ??2000~2500 ??2350
Solid content (%) ??20±1 ??20.7
The present invention has overcome the shortcoming of solvent-borne type PU sheep nubuck low-temperature Foamex, and its adhesive force of synthetic leather is good, and feel and resultant effect are good, and it is good to have feel with the synthetic leather product of its production, and moisture-penetrable ventilated property is good.In addition, water-based PU sheep nubuck low-temperature Foamex also has advantages such as baking temperature is low, production cost is low, and the organic solvent-free volatilization is beneficial to environmental protection.

Claims (6)

1, a kind of water-soluble PU nubuck low-temperature foamex for synthetic leather, it is characterized in that: it is made up of following raw materials by weight percent: aqueous polyurethane 30~40%, water 40~50%, low temperature sheep crust foam powder 2~10%, organosilicon levelling agent 2~5%, silicone defoaming agent 2~5%, aqueous polyurethane thickener 0.5~2%.
2, water-soluble PU nubuck low-temperature foamex for synthetic leather according to claim 1, it is characterized in that: it is made up of following raw materials by weight percent: aqueous polyurethane 35~40%, water 40~50%, low temperature sheep crust foam powder 3~5%, organosilicon levelling agent 3~5%, silicone defoaming agent 3~5%, aqueous polyurethane thickener 1~2%.
3, water-soluble PU nubuck low-temperature foamex for synthetic leather according to claim 1 and 2 is characterized in that, described waterborne polyurethane resin is aliphatic polyurethane emulsion, aliphatic polyurethane dispersion liquid or the aliphatic polyurethane aqueous solution.
4, water-soluble PU nubuck low-temperature foamex for synthetic leather according to claim 1 and 2 is characterized in that, described waterborne polyurethane resin is aromatic urethane emulsion, aromatic urethane dispersion liquid or the aromatic urethane aqueous solution.
5, water-soluble PU nubuck low-temperature foamex for synthetic leather according to claim 1 and 2 is characterized in that: described aqueous polyurethane thickener is the nonionic polyurethane polymer.
6, water-soluble PU nubuck low-temperature foamex for synthetic leather according to claim 1 and 2 is characterized in that: described water is running water.
CN200910036253A 2009-10-09 2009-10-09 Water-soluble PU nubuck low-temperature foamex for synthetic leather Pending CN101666039A (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102086594A (en) * 2010-12-09 2011-06-08 嘉兴市罗星化工有限公司 Reversible wool sheep skin resin taking waterborne polyurethane as carrier and preparation method thereof
CN102382450A (en) * 2011-08-11 2012-03-21 苏州鼎润复合材料有限公司 Nap-up and nap-down brushed yarn buck foaming resin for synthetic leather and preparation method thereof
CN102587145A (en) * 2012-01-09 2012-07-18 浙江禾欣实业集团股份有限公司 Manufacturing method of oil-wax feel Yangbuck
CN103046341A (en) * 2012-12-28 2013-04-17 苏州鼎润复合材料有限公司 Buffing burnt-feeling water-based Yangbuck foaming resin and preparation method thereof
CN106436337A (en) * 2016-09-28 2017-02-22 合肥科天水性科技有限责任公司 Water-based yangbuck with lustring effects and method for preparing water-based yangbuck
CN107384212A (en) * 2017-08-18 2017-11-24 江苏宝泽高分子材料股份有限公司 Thick sheep bar pressure changing resin and preparation method thereof in a kind of use for synthetic leather
CN108485147A (en) * 2018-05-10 2018-09-04 运研材料科技(上海)有限公司 A kind of Foamex with low-temp foaming function and preparation method thereof and purposes
CN109162111A (en) * 2018-09-14 2019-01-08 安徽省怀宁县山森制衣有限公司 A kind of processing method of flannelette fur clothing material

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102086594A (en) * 2010-12-09 2011-06-08 嘉兴市罗星化工有限公司 Reversible wool sheep skin resin taking waterborne polyurethane as carrier and preparation method thereof
CN102086594B (en) * 2010-12-09 2012-05-02 嘉兴市罗星化工有限公司 Reversible wool sheep skin resin taking waterborne polyurethane as carrier and preparation method thereof
CN102382450A (en) * 2011-08-11 2012-03-21 苏州鼎润复合材料有限公司 Nap-up and nap-down brushed yarn buck foaming resin for synthetic leather and preparation method thereof
CN102382450B (en) * 2011-08-11 2013-02-06 苏州鼎润复合材料有限公司 Nap-up and nap-down brushed yarn buck foaming resin for synthetic leather and preparation method thereof
CN102587145A (en) * 2012-01-09 2012-07-18 浙江禾欣实业集团股份有限公司 Manufacturing method of oil-wax feel Yangbuck
CN103046341A (en) * 2012-12-28 2013-04-17 苏州鼎润复合材料有限公司 Buffing burnt-feeling water-based Yangbuck foaming resin and preparation method thereof
CN103046341B (en) * 2012-12-28 2014-11-19 苏州鼎润复合材料有限公司 Buffing burnt-feeling water-based Yangbuck foaming resin and preparation method thereof
CN106436337A (en) * 2016-09-28 2017-02-22 合肥科天水性科技有限责任公司 Water-based yangbuck with lustring effects and method for preparing water-based yangbuck
CN106436337B (en) * 2016-09-28 2019-07-16 合肥科天水性科技有限责任公司 A kind of aqueous sheep Ba Ge and preparation method thereof with hot light effect
CN107384212A (en) * 2017-08-18 2017-11-24 江苏宝泽高分子材料股份有限公司 Thick sheep bar pressure changing resin and preparation method thereof in a kind of use for synthetic leather
CN108485147A (en) * 2018-05-10 2018-09-04 运研材料科技(上海)有限公司 A kind of Foamex with low-temp foaming function and preparation method thereof and purposes
CN109162111A (en) * 2018-09-14 2019-01-08 安徽省怀宁县山森制衣有限公司 A kind of processing method of flannelette fur clothing material

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