CN103061129A - Synthetic leather finishing agent, preparation method of the synthetic leather finishing agent, and synthetic leather surface treatment method - Google Patents
Synthetic leather finishing agent, preparation method of the synthetic leather finishing agent, and synthetic leather surface treatment method Download PDFInfo
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- CN103061129A CN103061129A CN2012105839409A CN201210583940A CN103061129A CN 103061129 A CN103061129 A CN 103061129A CN 2012105839409 A CN2012105839409 A CN 2012105839409A CN 201210583940 A CN201210583940 A CN 201210583940A CN 103061129 A CN103061129 A CN 103061129A
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Abstract
The invention relates to a synthetic leather finishing agent, a preparation method of the synthetic leather finishing agent, and a synthetic leather surface treatment method. The synthetic leather finishing agent comprises a base component for being coated on the surface of synthetic leather. The base component comprises a film-forming material, a solvent and an assistant. The film-forming material is casein or modified casein. The synthetic leather finishing agent also comprises a curing component for curing crosslinking of the base component. The curing component comprises formaldehyde having a crosslinking effect and acetic acid as a crosslinking catalyst. The synthetic leather finishing agent can adhere to synthetic leather well, and forms a coating having excellent protein material performances such as temperature resistance, mechanical polishing resistance and ironing performances. The synthetic leather treated by the synthetic leather finishing agent and the synthetic leather surface treatment method has a naturally glossy, soft and fine surface and a strong real leather touch.
Description
Technical field
The present invention relates to the synthetic leather technical field of surface, particularly a kind of synthetic leather surface treatment is used
Finishing agent, the preparation method of finishing agent and the method for utilizing this 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.Synthetic leather surface effect without ornamenting is comparatively simple generally speaking, the synthetic leather of arrangement after the process finishing reaches, its feel, decorative pattern, surface touch, optical haze degree, color all can improve to some extent, and have improved the aesthetic feeling of synthetic leather, and have strengthened its skin emulation effect.
The protide material is one of most widely used water-soluble coating material in the leather finish, it has many excellent properties, can give the good heat resistance of leather and anti-mechanical polishing, strengthen the natural gloss on leather surface, and can remove from office the sense of touch of the level and smooth nature of dry tack free.Yet, so far, yet there are no the protide material is applied in the surface treatment of synthetic leather, this mainly is because the protide material is water-soluble coating material, and the adhesion between the synthetic leather surface is bad, can't form effective rete.
Summary of the invention
Technical problem to be solved by this invention is to overcome existing deficiency, provide a kind of take the protide material as filmogen and and synthetic leather surface between the strong synthetic leather finishing agent of adhesion strength.
The present invention also will provide a kind of preparation method of synthetic leather finishing agent simultaneously.
The present invention also will provide a kind of surface treatment method of synthetic leather, takes the synthetic leather after the method is processed to have extremely strong kishke feel.
For solving above technical problem, a kind of technical scheme that the present invention takes is:
A kind of synthetic leather finishing agent, comprise be used to being coated in the lip-deep matrix component of synthetic leather, this matrix component is comprised of filmogen, solvent and auxiliary agent, particularly, described filmogen is casein or modified Casein, the synthetic leather finishing agent also comprises the curing component for the curing cross-linked of matrix component, and this curing component has included the formaldehyde of crosslinked action and has been used as the acetic acid of crosslinking catalyst.
Preferably, described auxiliary agent comprise that shellac, animal glue, albumen are done, sulfated castor oil, glycerine, alcohol and optionally include preservative agent.The adding of shellac, animal glue can improve the gloss of formed coating and improve the adhesive force of coating on leather surface.Sulfated castor oil can strengthen the toughness of formed coating; The adding of alcohol and glycerine can improve finishing agent at the levelability on synthetic leather surface; The adding of wax emulsion can improve flatness and the feel of film forming.
Further preferably, in weight portion, the raw material of described matrix component is composed as follows: 15 ~ 25 parts of the casein liquid of 8wt% ~ 12wt%, 55 ~ 60 parts in water, 2 ~ 4 parts of wax emulsions, 7.5wt% ~ 4 ~ 8 parts of 10wt% shellac liquid, albumen are done 0 ~ 0.0015 part of 0.3 ~ 0.8 part, 0.3 ~ 0.8 part in ox glue, 0.5 ~ 1.5 part of sulfated castor oil, 0.5 ~ 1.5 part of glycerine, 0.5 ~ 1.5 part of alcohol and preservative agent, wherein said casein liquid is for dissolving the solution that obtains after casein and/or the modified Casein with ammoniacal liquor or boric acid, and described shellac liquid is for dissolving the solution that obtains behind the shellac with ammoniacal liquor or boric acid.
Preferably, described preservative agent is carbolic acid, and its consumption is 0.0005 ~ 0.0015 part.
According to a preferred aspect, in weight portion, described curing component is comprised of 4 ~ 8 parts in 4 ~ 8 parts in formaldehyde, 0.2 ~ 0.4 part of acetic acid and water.
Preferably, described matrix component is 3 ~ 6:1 with the weight proportion that solidifies component.
The another technical scheme that the present invention takes is: a kind of preparation method of synthetic leather finishing agent comprises the steps:
(1) casein or modified Casein are dissolved in to obtain concentration in ammoniacal liquor or the boric acid be the casein liquid of 8wt% ~ 12wt%, shellac are dissolved in to obtain concentration in ammoniacal liquor or the boric acid be the shellac liquid of 7.5wt% ~ 10wt%;
(2) in the prepared casein liquid of step (1), add entry, wax emulsion, shellac liquid, albumen are done, animal glue, sulfated castor oil, glycerine, alcohol, preservative agent, after stirring, as the matrix component, wherein, in weight portion, casein liquid, water, wax emulsion, shellac liquid, albumen are done, the addition of animal glue, sulfated castor oil, glycerine, alcohol, preservative agent is followed successively by 15 ~ 25 parts, 55-60 part, 2 ~ 4 parts, 4 ~ 8 parts, 0.3 ~ 0.8 part, 0.3 ~ 0.8 part, 0.5 ~ 1.5 part, 0.5 ~ 1.5 part, 0.5 ~ 1.5 part, 0 ~ 0.0015 part;
(3) with behind the formaldehyde dilute with water, toward wherein adding acetic acid, as solidifying component, wherein, in weight portion, the addition of formaldehyde, water and acetic acid is followed successively by 4 ~ 8 parts, 4 ~ 8 parts and 0.2 ~ 0.4 part.
More specifically, step (1) is implemented as follows:
The casein liquid making method: first with casein with a small amount of cold water soak a period of time, make then heating water of its swelling, slowly drip ammoniacal liquor or borax soln, casein is dissolved fully, the pH of casein solution is controlled to be 7.5 ~ 8.0 and is advisable, and ammoniacal liquor (25%) consumption is about 10% of casein amount, and the borax consumption is about 20% when dissolving with borax, if casein is second-rate, ammoniacal liquor or borax consumption can suitably increase.
The collocation method of shellac liquid: shellac is joined in an amount of hot water, and agitation and dropping ammoniacal liquor or borax soln are configured to the solution of 7.5%-10% with it, and ammoniacal liquor (25%) consumption is about 15% of shellac, and the borax consumption is about 25% of shellac.
The present invention also provides a kind of surface treatment method of synthetic leather, it adopts the above-mentioned synthetic leather finishing agent of the present invention, at first, the matrix component is coated on the synthetic leather surface, oven dry, repeat 2 ~ 4 times, then will solidify component and be coated on synthetic leather surface once, oven dry, mechanical polishing, flatiron, wherein total coat weight of matrix component is 3 ~ 6:1 with the ratio of the coat weight of solidifying component.
According to the present invention, the mode of described coating can be for being selected from one or more in spraying, roller coat, printing, heavy curtain pouring slurry, the tamponing, and described coating is carried out at normal temperatures, and oven dry is carried out under 80 ℃-120 ℃.
According to the present invention, casein in the raw material or modified Casein, wax emulsion, shellac/liquid, albumen are done, animal glue, sulfated castor oil, glycerine, alcohol, preservative agent etc. all can be by commercially available, and wherein particularly preferably those help to improve the wax emulsion of feel and flatness to the wax emulsion.
Because the employing of technique scheme, the present invention compared with prior art has the following advantages:
Synthetic leather finishing agent provided by the invention is take casein or modified Casein as filmogen, and solidify and further improved adhesion strength between finishing agent and the synthetic leather surface by auxiliary agent by formaldehyde crosslinking, for example heat resistance and anti-mechanical polishing and press performance of the excellent properties that formed coating has a protide material.Finishing agent provided by the invention and natural, soft through formed coating gloss after the inventive method processing, sense of touch is fine and smooth, so that the synthetic leather after processing has extremely strong kishke feel.
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 ~ 2
The composition of raw materials of synthetic leather finishing agent is referring to table 1, and wherein casein liquid is that casein is dissolved in that gained concentration is that 10wt%, pH are 7.5 ~ 8.0 solution in the ammoniacal liquor.The wax emulsion is available from San Noboru chemical industry, and model is WAX-488; Shellac liquid is that shellac is dissolved in that gained concentration is the solution of 8wt% in the ammoniacal liquor; Alcohol is pure for analyzing.
The synthetic leather finishing agent is prepared as follows:
(1) with casein with rush film and be dissolved in respectively in the ammoniacal liquor that to obtain concentration be the casein liquid of 10wt% and the shellac liquid that concentration is 8wt%;
(2) add the water of formula ratio in the prepared casein liquid of step (1), wax emulsion, shellac liquid, albumen are done, animal glue, sulfated castor oil, glycerine, alcohol, preservative agent, after stirring, as the matrix component;
(3) by filling a prescription behind the formaldehyde dilute with water, toward wherein adding acetic acid, as solidifying component.
Embodiment 3 ~ 4
The composition of raw materials of synthetic leather finishing agent is referring to table 1, and wherein casein liquid is that casein is dissolved in that gained concentration is the solution of 10wt% in the boric acid.The wax emulsion is available from San Noboru chemical industry, and model is WAX-488, and concentration is 10wt%; Shellac liquid is that shellac is dissolved in that gained concentration is the solution of 8wt% in the boric acid.
The synthetic leather finishing agent is prepared as follows:
(1) casein and shellac are dissolved in respectively to obtain concentration in the boric acid be the casein liquid of 10wt% and the shellac liquid that concentration is 8wt%;
(2) add the water of formula ratio in the prepared casein liquid of step (1), wax emulsion, shellac liquid, albumen are done, animal glue, sulfated castor oil, glycerine, alcohol, preservative agent, after stirring, as the matrix component;
(3) by filling a prescription behind the formaldehyde dilute with water, toward wherein adding acetic acid, as solidifying component.
The composition of raw materials of the synthetic leather finishing agent of embodiment 1 ~ 4
The technical indicator of the synthetic leather finishing agent of table 1 embodiment 1～4
Embodiment 5
This example provides a kind of employing according to the synthetic leather finishing agent that embodiment 1 method prepares synthetic leather to be carried out the surface-treated method, and is specific as follows:
At first, with the matrix component with 70g/m
2Consumption be sprayed at the synthetic leather surface, in 90 ℃ of lower oven dry, repeat 3 times, then will solidify component with 80g/m
2Consumption be sprayed at synthetic leather surface once, in 95 ℃ of lower oven dry, mechanical polishing, flatiron.Synthetic leather lustrous surface nature after treatment, sense of touch is fine and smooth, and simulated effect is extremely strong.
Embodiment 6 ~ 8
Embodiment 6 ~ 8 provides respectively the synthetic leather finishing agent that adopts according to the method preparation of embodiment 2 ~ 4 that synthetic leather is carried out the surface-treated method, and is specific as follows:
At first, with the matrix component with 80g/m
2Consumption be sprayed at the synthetic leather surface, in 90 ℃ of lower oven dry, repeat 3 times, then will solidify component with 55g/m
2Consumption be sprayed at synthetic leather surface once, in 95 ℃ of lower oven dry, mechanical polishing, flatiron.Synthetic leather lustrous surface nature after treatment, sense of touch is fine and smooth, and simulated effect is extremely 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. synthetic leather finishing agent, comprise be used to being coated in the lip-deep matrix component of synthetic leather, described matrix component is comprised of filmogen, solvent and auxiliary agent, it is characterized in that: described filmogen is casein or modified Casein, described synthetic leather finishing agent also comprises the curing component for the curing cross-linked of described matrix component, and described curing component has included the formaldehyde of crosslinked action and has been used as the acetic acid of crosslinking catalyst.
2. synthetic leather finishing agent according to claim 1 is characterized in that: described auxiliary agent comprises that shellac, animal glue, albumen are done, sulfated castor oil, glycerine, alcohol and optionally include preservative agent.
3. synthetic leather finishing agent according to claim 2, it is characterized in that: in weight portion, the raw material of described matrix component is composed as follows: 15 ~ 25 parts of the casein liquid of 8wt% ~ 12wt%, 55 ~ 60 parts in water, 2 ~ 4 parts of wax emulsions, 4 ~ 8 parts of 7.5wt% ~ 10wt% shellac liquid, albumen is done 0.3 ~ 0.8 part, 0.3 ~ 0.8 part in ox glue, 0.5 ~ 1.5 part of sulfated castor oil, 0.5 ~ 1.5 part of glycerine, 0 ~ 0.0015 part of 0.5 ~ 1.5 part of alcohol and preservative agent, wherein said casein liquid is for dissolving the solution that obtains after casein and/or the modified Casein with ammoniacal liquor or boric acid, and described shellac liquid is for dissolving the solution that obtains behind the shellac with ammoniacal liquor or boric acid.
4. synthetic leather finishing agent according to claim 3, it is characterized in that: described preservative agent is carbolic acid, its consumption is 0.0005 ~ 0.0015 part.
5. according to claim 1 or 3 described synthetic leather finishing agents, it is characterized in that: in weight portion, described curing component is comprised of 4 ~ 8 parts in 4 ~ 8 parts in formaldehyde, 0.2 ~ 0.4 part of acetic acid and water.
6. synthetic leather finishing agent according to claim 5 is characterized in that: described matrix component is 3 ~ 6:1 with the weight proportion that solidifies component.
7. the preparation method of a synthetic leather finishing agent is characterized in that: comprise the steps:
(1) casein or modified Casein are dissolved in to obtain concentration in ammoniacal liquor or the boric acid be the casein liquid of 8wt% ~ 12wt%, shellac are dissolved in to obtain concentration in ammoniacal liquor or the boric acid be the shellac liquid of 7.5wt% ~ 10wt%;
(2) in the prepared casein liquid of step (1), add entry, wax emulsion, shellac liquid, albumen are done, animal glue, sulfated castor oil, glycerine, alcohol, preservative agent, after stirring, as the matrix component, wherein, in weight portion, casein liquid, water, wax emulsion, shellac liquid, albumen are done, the addition of animal glue, sulfated castor oil, glycerine, alcohol, preservative agent is followed successively by 15 ~ 25 parts, 55-60 part, 2 ~ 4 parts, 4 ~ 8 parts, 0.3 ~ 0.8 part, 0.3 ~ 0.8 part, 0.5 ~ 1.5 part, 0.5 ~ 1.5 part, 0.5 ~ 1.5 part, 0 ~ 0.0015 part;
(3) with behind the formaldehyde dilute with water, toward wherein adding acetic acid, as solidifying component, wherein, in weight portion, the addition of formaldehyde, water and acetic acid is followed successively by 4 ~ 8 parts, 4 ~ 8 parts and 0.2 ~ 0.4 part.
8. the preparation method of synthetic leather finishing agent according to claim 7, it is characterized in that: described preservative agent is carbolic acid, its addition is 0.0005 ~ 0.0015 part.
9. the surface treatment method of a synthetic leather, it is characterized in that: the method adopts the described synthetic leather finishing agent of each claim in the claim 1 to 7, at first, described matrix component is coated on the synthetic leather surface, oven dry, repeat 2 ~ 4 times, then will solidify component and be coated on synthetic leather surface once, oven dry, mechanical polishing, flatiron, wherein total coat weight of matrix component is 3 ~ 6:1 with the ratio of the coat weight of solidifying component.
10. the surface treatment method of synthetic leather according to claim 9, it is characterized in that: the mode of described coating is one or more that are selected from spraying, roller coat, printing, heavy curtain pouring slurry, the tamponing, described coating is carried out at normal temperatures, and described oven dry is carried out under 80 ℃-120 ℃ of temperature.
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| CN2012105839409A CN103061129A (en) | 2012-12-28 | 2012-12-28 | Synthetic leather finishing agent, preparation method of the synthetic leather finishing agent, and synthetic leather surface treatment method |
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| CN2012105839409A CN103061129A (en) | 2012-12-28 | 2012-12-28 | Synthetic leather finishing agent, preparation method of the synthetic leather finishing agent, and synthetic leather surface treatment method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104379010A (en) * | 2013-03-20 | 2015-02-25 | Nom涂料有限公司 | Composition of artificial hair and production method thereof |
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| CN1062013A (en) * | 1990-11-28 | 1992-06-17 | 山东省诸城市制革厂 | A kind of colored leather and method for platemaking |
| CN102101101A (en) * | 2009-12-18 | 2011-06-22 | 上海华峰超纤材料股份有限公司 | Highlight cracked superfine fiber leather and preparation method thereof |
| CN102532561A (en) * | 2011-12-19 | 2012-07-04 | 四川达威科技股份有限公司 | Modified casein, leather finishing agent and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104379010A (en) * | 2013-03-20 | 2015-02-25 | Nom涂料有限公司 | Composition of artificial hair and production method thereof |
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Application publication date: 20130424 |