CN103046377B - Cloudy-surface skin touch-feeling finishing agent for synthetic leather and surface treatment method of synthetic leather - Google Patents
Cloudy-surface skin touch-feeling finishing agent for synthetic leather and surface treatment method of synthetic leather Download PDFInfo
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- CN103046377B CN103046377B CN201210581768.3A CN201210581768A CN103046377B CN 103046377 B CN103046377 B CN 103046377B CN 201210581768 A CN201210581768 A CN 201210581768A CN 103046377 B CN103046377 B CN 103046377B
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Abstract
The invention relates to a cloudy-surface skin touch-feeling finishing agent for synthetic leather and a surface treatment method of synthetic leather. The skin touch-feeling is formed by mixing the following raw materials by weight: 25-35 parts of polyester polyol resin, 15-18 parts of butyl acetate, 15-18 parts of xylene, 20-30 parts of diacetone alcohol, 2.5-5.5 parts of silicon dioxide powder or modified silicon dioxide powder, 1.5-2.5 parts of dimethyl silicon oil, 1.5-2.5 parts of leveling additives, 0.05-0.5 part of catalysts, 12-20 parts of polyurethane curing agents, and 0.5-2.5 parts of dehydrating agents. The cloudy-surface skin touch-feeling finishing agent has a reasonable formula, and can endow synthetic leather with fine and skin-like touch-feeling after using the finishing agent. Besides, the synthetic leather has dull luster, ancient style and strong leathery feeling. Furthermore, the cloudy-surface skin touch-feeling finishing agent is easy for preparation and use.
Description
Technical field
The present invention relates to synthetic leather technical field of surface, particularly cloudy surface skinfeel finishing agent for a kind of synthetic leather surface treatment, the preparation method of cloudy surface skinfeel finishing agent and the method for utilizing this cloudy surface skinfeel finishing agent to process synthetic leather surface.
Background technology
The finishing of synthetic leather and rear finishing technique are to improve product specification, promote the important step of synthetic leather product quality and economic worth.Synthetic leather surface effect without ornamenting is generally comparatively simple.By finishing and rear arrangement, can expect feel, surface touch to synthetic leather, outward appearance is decorative pattern, optical haze degree, gloss, color, style for example, and the serviceability etc. of leather is improved.The process for treating surface of improvement synthetic leather meets the ever-increasing demand of people product to obtain is the target that current practitioner in the industry pursues always.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of use for synthetic leather cloudy surface skinfeel finishing agent that can make synthetic leather obtain similar skin feel and simple and unsophisticated appearance effect.
The present invention also will provide a kind of surface treatment method of synthetic leather, and the synthetic leather after wherethrough reason has similar skin feel and simple and unsophisticated appearance effect.
For solving above technical problem, a kind of technical scheme that the present invention takes is:
A kind of use for synthetic leather cloudy surface skinfeel finishing agent, its raw material by following weight portion mixes: polyester polyol resin 25-35 part; Butyl acetate 15-18 part; Dimethylbenzene 15-18 part; DAA 20-30 part; Silicon dioxide powder or improved silica powder 2.5-5.5 part; Dimethicone 1.5-2.5 part; Leveling auxiliary agent 1.5-2.5 part; Catalyst 0.05-0.5 part; Polyurethane curing agent 12-20 part, dehydrating agent 0.5-2.5 part.
According to further embodiment of the present invention: the weight average molecular weight of described polyester polyol resin is 1000-4500g/mol.The hydroxyl value of polyester polyol resin is 40 ~ 200mgKOH/g, acid number≤0.2mgKOH/g, and viscosity is 6000 ~ 20000mPas.Preferably, in the main chain of described polyester polyol resin, contain polyether segment, and the mass content of polyether segment in described polyester polyol resin is 10% ~ 90%.
Preferably, the mass content of polyether segment in described polyester polyol resin is 30% ~ 60%.
Polyester polyol resin of the present invention can be prepared by the synthetic technology of this area routine.According to a specific embodiment of the present invention: first obtain polyether polyol, then make it react with binary acid and obtain preliminary condensation polymer, then add for example Isopropanediol of dihydroxylic alcohols monomer to continue react and get final product.More specifically, polyether polyol can be for example poly(propylene oxide), poly(ethylene oxide) or the copolymer of the two, and the weight average molecular weight of polyether polyol can be for example 200 ~ 1000g/mol.By regulating the molecular weight of polyether polyol can regulate and control the content of polyether block in polyester polyol resin.The example of binary acid has glutaric acid, hexanedioic acid etc., wherein preferred adipic acid.Polyether polyol is carried out under existing at for example p-methyl benzenesulfonic acid of esterification catalyst with reacting preferably of binary acid.
The present invention, the catalyst described in finishing agent can be for being selected from one or more in methyl diethanolamine, dimethylethanolamine, triethylenediamine, N.N-dimethyl cyclohexyl amine, N-methylmorpholine, dibutyl tin laurate, dibutyltin diacetate, stannous octoate, zinc naphthenate, cobalt naphthenate, lead naphthenate, tributylphosphine and triethyl phosphine.
Polyurethane curing agent of the present invention can be case type latent curing agent, as the MF series of Japanese Asahi Chemical Industry be selected from phenols end-blocking TDI performed polymer, amido end-blocking TDI performed polymer, β-carbonyls (reactive hydrogen is arranged in the middle of 2 carbonyls) end-blocking TDI performed polymer, oxime compound end-blocking TDI performed polymer, glyoxaline compound end-blocking TDI performed polymer and bisulfites end-blocking TDI performed polymer one or more.
Dehydrating agent of the present invention or claim absorbent, leveling auxiliary agent all can be commercially available, dehydration has for example TI, BF-5, an OF.Leveling auxiliary agent has for example BYK-370, BYK-331 etc.
The particle diameter of silicon dioxide powder of the present invention or improved silica powder is preferably 10nm-10 μ m.Described improved silica powder is preferably polysiloxane-modified silicon dioxide powder.
The another technical scheme that the present invention takes is: a kind ofly take above-mentioned use for synthetic leather cloudy surface skinfeel finishing agent to carry out surface-treated method to synthetic leather: the agent of described use for synthetic leather cloudy surface skinfeel is evenly coated on to the surface of synthetic leather, then at 80 ~ 140 DEG C, dries 1 ~ 5 minute.
Described coating can be taked such as roller coat of the conventional mode in this area, spraying etc., wherein preferred roller coat.
Due to the employing of technique scheme, the present invention compared with prior art has the following advantages:
Cloudy surface skinfeel treatment agent formula of the present invention is reasonable in design, can make synthetic leather face obtain very fine and smooth, the dermatoid sense of touch of class after use; Meanwhile, also make synthetic leather surface gloss low and deep, style is simple and unsophisticated, and kishke feel is extremely strong.In addition, the preparation of cloudy surface skinfeel finishing agent of the present invention and use are simple.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention will be further described in detail, but the invention is not restricted to following examples.
Embodiment 1
This example provides a kind of use for synthetic leather cloudy surface skinfeel finishing agent, and its composition of raw materials is referring to table 1, wherein:
The hydroxyl value of polyester polyol resin is 62mgKOH/g, and acid number is 0.1mgKOH/g, and viscosity is 14000mPas, and weight average molecular weight is 2800g/mol, and wherein polyether segment mass content is 35%.
Improved silica powder is polysiloxane-modified silicon dioxide powder, and particle diameter is 100nu, purchased from Degussa.
Polyurethane curing agent is the Japanese MF-K60X of Asahi Chemical Industry
Catalyst is two laurate, dibutyl tin; Leveling auxiliary agent is BYK-370; Dehydrating agent is BF-5.
Above-mentioned each material component is joined in high-speed stirred still by proportioning, stir and obtain use for synthetic leather cloudy surface skinfeel finishing agent, its property indices is referring to table 2.
Embodiment 2
This example provides a kind of use for synthetic leather cloudy surface skinfeel finishing agent, and its composition of raw materials is referring to table 1, wherein:
The hydroxyl value of polyester polyol resin is 115mgKOH/g, and acid number is 0.08mgKOH/g, and viscosity is 02000mPas, and weight average molecular weight is 2000g/mol, and wherein polyether segment mass content is 40%.
Improved silica powder is polysiloxane-modified silicon dioxide powder, and particle diameter is 80nm, purchased from Degussa.Polyurethane curing agent is Japanese Asahi Chemical Industry, MF-B60X.Catalyst is two acetic acid, dibutyl tin, and leveling auxiliary agent is BYK-331; Dehydrating agent is TI.
Above-mentioned each material component is joined in high-speed stirred still by proportioning, stir and obtain use for synthetic leather cloudy surface skinfeel finishing agent, its property indices is referring to table 2.
Embodiment 3
This example provides a kind of use for synthetic leather cloudy surface skinfeel finishing agent, and its composition of raw materials is referring to table 1, wherein:
The hydroxyl value of polyester polyol resin is 88mgKOH/g, and acid number is 0.09mgKOH/g, and viscosity is 10000mPas, and weight average molecular weight is 1800g/mol, and wherein polyether segment mass content is 50%.
Improved silica powder is polysiloxane-modified silicon dioxide powder, and particle diameter is 150nm, purchased from Degussa.Polyurethane curing agent is Japanese fuji FRX-1081.Catalyst is two bay acetic acid, dibutyl tin, and leveling auxiliary agent is BYK-331; Dehydrating agent is BY-5.
Above-mentioned each material component is joined in high-speed stirred still by proportioning, stir and obtain use for synthetic leather cloudy surface skinfeel finishing agent, its property indices is referring to table 2.
Embodiment 4
This example provides a kind of use for synthetic leather cloudy surface skinfeel finishing agent, and its composition of raw materials is referring to table 1, wherein:
The hydroxyl value of polyester polyol resin is 125mgKOH/g, and acid number is 0.05mgKOH/g, and viscosity is 8000mPas, and weight average molecular weight is 1200g/mol, and wherein polyether segment mass content is 60%.
Improved silica powder is polysiloxane-modified silicon dioxide powder, and particle diameter is 40nm, purchased from Degussa.Polyurethane curing agent is the Japanese MF-K60X of Asahi Chemical Industry.Catalyst is two bay acetic acid, dibutyl tin; Leveling auxiliary agent is BYK-370; Dehydrating agent is OF.
Above-mentioned each material component is joined in high-speed stirred still by proportioning, stir and obtain use for synthetic leather cloudy surface skinfeel finishing agent, its property indices is referring to table 2.
The composition of raw materials of the use for synthetic leather cloudy surface skinfeel finishing agent of embodiment 1 ~ 4
The technical indicator of the use for synthetic leather cloudy surface skinfeel finishing agent of table 2 embodiment 1～4
Embodiment 5
This example provides the use for synthetic leather cloudy surface skinfeel finishing agent that a kind of employing is prepared according to embodiment 1 method to carry out surface-treated method to synthetic leather, specific as follows: by finishing agent with 70g/m
2consumption roller coat in synthetic leather surface, at 100 DEG C, dry 2 minutes.Synthetic leather lustrous surface is after treatment low and deep, sense of touch very fine and smooth (the dermatoid sense of touch of class), and style is simple and unsophisticated, and kishke feel is very strong.
Embodiment 6 ~ 7
Embodiment 6 ~ 7 provides respectively and adopts the use for synthetic leather cloudy surface skinfeel finishing agent prepared according to the method for embodiment 2 ~ 3 to carry out surface-treated method to synthetic leather, specific as follows: by finishing agent with 70g/m
2consumption roller coat in synthetic leather surface, at 80 DEG C, dry 5 minutes.Synthetic leather lustrous surface is after treatment low and deep, sense of touch very fine and smooth (the dermatoid sense of touch of class), and style is simple and unsophisticated, and kishke feel is very strong.
Embodiment 8
This example provides and adopts the use for synthetic leather cloudy surface skinfeel finishing agent prepared according to the method for embodiment 4 to carry out surface-treated method to synthetic leather, specific as follows: by finishing agent with 70g/m
2consumption roller coat in synthetic leather surface, at 140 DEG C, dry 1 minute.Synthetic leather lustrous surface is after treatment low and deep, sense of touch very fine and smooth (the dermatoid sense of touch of class), and style is simple and unsophisticated, and kishke feel is very strong.
Above-described embodiment is only explanation technical conceive of the present invention and feature; its object is to allow person skilled in the art can understand content of the present invention and implement according to this; can not limit the scope of the invention with this; all equivalences that Spirit Essence is done according to the present invention change or modify, within all should being encompassed in protection scope of the present invention.
Claims (7)
1. a use for synthetic leather cloudy surface skinfeel finishing agent, is characterized in that: the raw material by following weight portion mixes: polyester polyol resin 25-35 part; Butyl acetate 15-18 part; Dimethylbenzene 15-18 part; DAA 20-30 part; Silicon dioxide powder or improved silica powder 2.5-5.5 part; Dimethicone 1.5-2.5 part; Leveling auxiliary agent 1.5-2.5 part; Catalyst 0.05-0.5 part; Polyurethane curing agent 12-20 part, dehydrating agent 0.5-2.5 part, the weight average molecular weight of described polyester polyol resin is 1000-4500g/mol, hydroxyl value is 40～200mgKOH/g, acid number≤0.2mgKOH/g, viscosity is 6000～20000mPas, in the main chain of described polyester polyol resin, contains polyether segment, and the mass content of polyether segment in described polyester polyol resin is 10%～90%.
2. use for synthetic leather cloudy surface skinfeel finishing agent according to claim 1, is characterized in that: in described polyester polyol resin, the mass content of polyether segment is 30%～60%.
3. use for synthetic leather cloudy surface skinfeel finishing agent according to claim 1, is characterized in that: described catalyst is one or more that are selected from methyl diethanolamine, dimethylethanolamine, triethylenediamine, N.N-dimethyl cyclohexyl amine, N-methylmorpholine, dibutyl tin laurate, dibutyltin diacetate, stannous octoate, zinc naphthenate, cobalt naphthenate, lead naphthenate, tributylphosphine and triethyl phosphine.
4. use for synthetic leather cloudy surface skinfeel finishing agent according to claim 1, is characterized in that: the particle diameter of described silicon dioxide powder or improved silica powder is 10nm-10 μ m.
5. according to the use for synthetic leather cloudy surface skinfeel finishing agent described in claim 3 or 4, it is characterized in that: described improved silica powder is polysiloxane-modified silicon dioxide powder.
6. use for synthetic leather cloudy surface skinfeel finishing agent according to claim 1, is characterized in that: the latent curing agent that described polyurethane curing agent is closure.
7. take the use for synthetic leather cloudy surface skinfeel finishing agent described in any one claim in claim 1 to 6 to carry out surface-treated method to synthetic leather for one kind, it is characterized in that: the agent of described use for synthetic leather cloudy surface skinfeel is evenly coated on to the surface of synthetic leather, then at 80～140 DEG C, dries 1～5 minute.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210581768.3A CN103046377B (en) | 2012-12-28 | 2012-12-28 | Cloudy-surface skin touch-feeling finishing agent for synthetic leather and surface treatment method of synthetic leather |
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| CN201210581768.3A CN103046377B (en) | 2012-12-28 | 2012-12-28 | Cloudy-surface skin touch-feeling finishing agent for synthetic leather and surface treatment method of synthetic leather |
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| CN103046377A CN103046377A (en) | 2013-04-17 |
| CN103046377B true CN103046377B (en) | 2014-08-27 |
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| CN104179032B (en) * | 2014-08-01 | 2016-09-07 | 华伦皮塑（苏州）有限公司 | A kind of preparation method of the protein earphone leather of environment-friendly type |
| CN105297451A (en) * | 2015-11-27 | 2016-02-03 | 江苏宝泽高分子材料股份有限公司 | Skin-touch treatment agent and preparation method thereof |
| CN105774087B (en) * | 2016-03-02 | 2019-03-05 | 华伦皮塑（苏州）有限公司 | A kind of preparation method of the earphone leather of environmental protection pro-skin durable type |
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| JPS57109867A (en) * | 1980-12-26 | 1982-07-08 | Sanyo Chem Ind Ltd | Polyurethane-based coating composition |
| CN101429572A (en) * | 2007-11-08 | 2009-05-13 | 沈雪峰 | Mist-surface oil-wax embossing agent for processing leather surface and preparing method thereof |
| CN101481876B (en) * | 2008-01-31 | 2012-05-09 | 东莞市恩典皮具制品有限公司 | Aqueous polyurethane emulsion for synthetic leather and preparation thereof |
| CN101892593A (en) * | 2010-07-23 | 2010-11-24 | 江苏宝泽高分子材料股份有限公司 | Matt villus waxy feel finishing agent used for synthetic leather and preparation method thereof |
| CN101928510A (en) * | 2010-09-29 | 2010-12-29 | 杭州中富彩新材料科技有限公司 | Flatting agent for UV cured leathers and preparation method thereof |
| CN102168375A (en) * | 2010-12-01 | 2011-08-31 | 江苏宝泽高分子材料股份有限公司 | Crystal mist wax-feel resin for synthetic leather and preparation method thereof |
| CN102191689A (en) * | 2010-12-01 | 2011-09-21 | 江苏宝泽高分子材料股份有限公司 | Fogging surface silky wax feel finishing agent for synthetic leather and preparation method thereof |
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