CN103046377A - 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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- CN103046377A CN103046377A CN2012105817683A CN201210581768A CN103046377A CN 103046377 A CN103046377 A CN 103046377A CN 2012105817683 A CN2012105817683 A CN 2012105817683A CN 201210581768 A CN201210581768 A CN 201210581768A CN 103046377 A CN103046377 A CN 103046377A
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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 the synthetic leather technical field of surface, particularly a kind of synthetic leather surface treatment is with cloudy surface skinfeel finishing agent, the preparation method of cloudy surface skinfeel finishing agent and the method for utilizing this cloudy surface skinfeel finishing agent that the synthetic leather surface is processed.
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 comparatively simple generally speaking.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 product that the process for treating surface of improvement synthetic leather satisfies the ever-increasing demand of people with acquisition is the target that current in the industry practitioner pursues always.
Summary of the invention
Technical problem to be solved by this invention provides 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 the 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, contain polyether segment in the main chain of described polyester polyol resin, 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 prepare by the synthetic technology of this area routine.According to a specific embodiment of the present invention: at first obtain polyether polyol, then make itself and binary acid reaction obtain preliminary condensation polymer, add again the dihydroxylic alcohols monomer for example Isopropanediol continue reaction and get final product.More specifically, polyether polyol can for example be 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.Can regulate and control the content of polyether block in the polyester polyol resin by the molecular weight of regulating polyether polyol.The example of binary acid has glutaric acid, hexanedioic acid etc., wherein preferred adipic acid.The reaction of polyether polyol and binary acid is preferably for example carried out in the presence of the p-methyl benzenesulfonic acid at esterification catalyst.
The present invention, the catalyst described in the 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 the 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 namely has for example TI, BF-5, 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 that synthetic leather is carried out the surface-treated method: the agent of described use for synthetic leather cloudy surface skinfeel evenly is coated on the surface of synthetic leather, then 80 ~ 140 ℃ of lower bakings 1 ~ 5 minute.
Described coating can be taked for example roller coat of this area mode commonly used, spraying etc., wherein preferred roller coat.
Because 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 the synthetic leather face obtain very fine and smooth, the dermatoid sense of touch of class after the use; Simultaneously, 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.
The specific embodiment
The present invention will be further described in detail below in conjunction with specific embodiment, 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 the polyether segment mass content is 35%.
The improved silica powder is polysiloxane-modified silicon dioxide powder, and particle diameter is 100nu, available 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 the high-speed stirred still by proportioning, and stirring namely gets use for synthetic leather cloudy surface skinfeel finishing agent, and 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 the polyether segment mass content is 40%.
The improved silica powder is polysiloxane-modified silicon dioxide powder, and particle diameter is 80nm, available from Degussa.Polyurethane curing agent is Japanese Asahi Chemical Industry, MF-B60X.Catalyst is two acetic acid, and dibutyl tin, leveling auxiliary agent are BYK-331; Dehydrating agent is TI.
Above-mentioned each material component is joined in the high-speed stirred still by proportioning, and stirring namely gets use for synthetic leather cloudy surface skinfeel finishing agent, and 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 the polyether segment mass content is 50%.
The improved silica powder is polysiloxane-modified silicon dioxide powder, and particle diameter is 150nm, available from Degussa.Polyurethane curing agent is Japanese fuji FRX-1081.Catalyst is two bay acetic acid, and dibutyl tin, leveling auxiliary agent are BYK-331; Dehydrating agent is BY-5.
Above-mentioned each material component is joined in the high-speed stirred still by proportioning, and stirring namely gets use for synthetic leather cloudy surface skinfeel finishing agent, and 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 the polyether segment mass content is 60%.
The improved silica powder is polysiloxane-modified silicon dioxide powder, and particle diameter is 40nm, available 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 the high-speed stirred still by proportioning, and stirring namely gets use for synthetic leather cloudy surface skinfeel finishing agent, and 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 a kind of employing according to the use for synthetic leather cloudy surface skinfeel finishing agent of embodiment 1 method preparation synthetic leather to be carried out the surface-treated method, and is specific as follows: with finishing agent with 70g/m
2The consumption roller coat in synthetic leather surface, in 100 ℃ of lower bakings 2 minutes.Synthetic leather lustrous surface after treatment is 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 the use for synthetic leather cloudy surface skinfeel finishing agent that adopts according to the method preparation of embodiment 2 ~ 3 that synthetic leather is carried out the surface-treated method, and is specific as follows: with finishing agent with 70g/m
2The consumption roller coat in synthetic leather surface, in 80 ℃ of lower bakings 5 minutes.Synthetic leather lustrous surface after treatment is 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 the use for synthetic leather cloudy surface skinfeel finishing agent that adopts according to the method preparation of embodiment 4 that synthetic leather is carried out the surface-treated method, and is specific as follows: with finishing agent with 70g/m
2The consumption roller coat in synthetic leather surface, in 140 ℃ of lower bakings 1 minute.Synthetic leather lustrous surface after treatment is 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 only is explanation technical conceive of the present invention and characteristics; its purpose is to allow the personage who is familiar with technique can understand content of the present invention and according to this enforcement; can not limit protection scope of the present invention with this; all equivalences that Spirit Essence is done according to the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (10)
1. use for synthetic leather cloudy surface skinfeel finishing agent, it 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.
2. use for synthetic leather cloudy surface skinfeel finishing agent according to claim 1, it is characterized in that: the weight average molecular weight of described polyester polyol resin is 1000-4500g/mol.
3. use for synthetic leather cloudy surface skinfeel finishing agent according to claim 2, it is characterized in that: the hydroxyl value of described polyester polyol resin is 40 ~ 200mgKOH/g, acid number≤0.2mgKOH/g, viscosity is 6000 ~ 20000 mPas.
4. it is characterized in that: contain polyether segment in the main chain of described polyester polyol resin, and the mass content of polyether segment in described polyester polyol resin is 10% ~ 90% according to claim 1 and 2 or 3 described use for synthetic leather cloudy surface skinfeel finishing agents.
5. use for synthetic leather cloudy surface skinfeel finishing agent according to claim 4, it is characterized in that: the mass content of polyether segment is 30% ~ 60% in the described polyester polyol resin.
6. use for synthetic leather cloudy surface skinfeel finishing agent according to claim 1, it 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 the triethyl phosphine.
7. use for synthetic leather cloudy surface skinfeel finishing agent according to claim 1, it is characterized in that: the particle diameter of described silicon dioxide powder or improved silica powder is 10nm-10 μ m.
8. according to claim 6 or 7 described use for synthetic leather cloudy surface skinfeel finishing agents, it is characterized in that: described improved silica powder is polysiloxane-modified silicon dioxide powder.
9. use for synthetic leather cloudy surface skinfeel finishing agent according to claim 1, it is characterized in that: described polyurethane curing agent is the latent curing agent of closure.
10. take that the described use for synthetic leather cloudy surface of each claim skinfeel finishing agent carries out the surface-treated method to synthetic leather in the claim 1 to 9 for one kind, it is characterized in that: the agent of described use for synthetic leather cloudy surface skinfeel evenly is coated on the surface of synthetic leather, then 80 ~ 140 ℃ of lower bakings 1 ~ 5 minute.
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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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Cited By (3)
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| CN104179032A (en) * | 2014-08-01 | 2014-12-03 | 华伦皮塑（苏州）有限公司 | Preparation method of environment-friendly type protein leather for earphones |
| 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 |
| CN105774087A (en) * | 2016-03-02 | 2016-07-20 | 华伦皮塑（苏州）有限公司 | Preparation method of environmentally-friendly skin-friendly durable headphone leather |
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| CN105774087A (en) * | 2016-03-02 | 2016-07-20 | 华伦皮塑（苏州）有限公司 | Preparation method of environmentally-friendly skin-friendly durable headphone leather |
| 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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| CN103046377B (en) | 2014-08-27 |
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