CN102146260B - Anti-graffito leather finishing agent and using method thereof - Google Patents
Anti-graffito leather finishing agent and using method thereof Download PDFInfo
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- CN102146260B CN102146260B CN2011100396448A CN201110039644A CN102146260B CN 102146260 B CN102146260 B CN 102146260B CN 2011100396448 A CN2011100396448 A CN 2011100396448A CN 201110039644 A CN201110039644 A CN 201110039644A CN 102146260 B CN102146260 B CN 102146260B
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Abstract
The invention designs an anti-graffito leather finishing agent and a using method thereof, relates to the field of leather surface treatment, and solves the technical problem of undesirable anti-graffito effect of the conventional leather. The finishing agent is characterized by consisting of two parts which are stored separately, wherein the first part comprises the following raw material components in percentage by mass: 3 to 30 percent of hydroxyl polyester resin, 3 to 30 percent of hydroxyl-terminated polyurethane resin, 0 to 50 percent of polyurethane resin, 1 to 15 percent of organosilicon-modified acrylic resin, 0.1 to 1 percent of catalyst, 0.5 to 5 percent of aid and the balance of solvent; and the second part is a polyisocyanate curing agent in a molar amount which is 1 to 1.05 times that of hydroxyl in the first part. When the finishing agent is used for treating the surface of leather, the pollution to leather products in use by graffito is relieved effectively, graffito traces can be cleaned easily, and the good appearance of leather is restored.
Description
Technical field
The present invention relates to the leather surface process field, especially a kind of anti-graffiti hide finishes and method of use thereof.
Background technology
Leather is in use polluted by the cut of permanent pen, ballpoint pen or gel ink pen through regular meeting, in case contaminated then be difficult to remove, the outward appearance of leather is impacted.Particularly some high-grade light-colored leather goods such as case and bag or sofas etc. more need carry out special protection, and the cut that avoids the use of middle marking pen, ballpoint pen pollutes.Present hide finishes is paid close attention to appearance and feel mostly, and is relatively poor to the anti-graffiti protection effect of leather.
Summary of the invention
The objective of the invention is provides a kind of leather appearance and feel of both having guaranteed, good to the anti-graffiti protection effect of leather again anti-graffiti hide finishes for the deficiency that solves above-mentioned prior art.
In order to achieve the above object; The technical scheme that the present invention adopted is: a kind of anti-graffiti hide finishes; It is characterized in that it is made up of two parts of separately depositing; The material composition of first part and quality percentage composition are following: hydroxy polyester resin 3%-30%, hydroxyl-terminated polyurethane resin 3%-30%, urethane resin 0%-50%, organic-silicon-modified vinyl resin 1%-15%, catalyzer 0.1%-1%, auxiliary agent 0.5%-5%, all the other are solvent; Second section is a polyisocyanate curing agent, in the second section NCO molar weight of solidifying agent be hydroxyl molar weight in the first part 1-1.05 doubly.In use, first part and second section are covered with paint, lacquer, colour wash, etc. in leather surface after mixing; Through high bake, two part generation crosslinking reactions are in cross-linking process; Organosilicon segment in the organic-silicon-modified vinyl resin accumulates in leather surface; Simultaneously the urethane resin of the vibrin of hydroxyl end group and hydroxyl end groups also with second section generation crosslinking reaction, generate fine and close resin molding, play and stop the surface endosmosis of scribbling; Play anti-graffiti effect, and guaranteed leather good surface appearance effect and feel.
Improve and replenish as the further of said structure, the present invention also comprises the arbitrary combination of following additional technical feature or these characteristics:
Described polyisocyanate curing agent is hexamethylene diisocyanate biuret, hexamethylene diisocyanate trimer, isophorone diisocyanate trimer or uses the blocked polyisocyanate solidifying agent of above-mentioned polyisocyanate curing agent as the basis.After second section adopts case type solidifying agent, cross-linking and curing reaction can not take place under the normal temperature, only the time just can produce cross-linking and curing reaction in baking, can prolong for two duration of service after partially mixed so greatly.Common two partially mixed back suggestions used in 4 hours, otherwise can influence anti-graffiti effect.If second section adopts case type solidifying agent, then two can store a week after partially mixed and can not have influence on anti-graffiti effect.
Described catalyzer is any or the mixture more than two kinds in stannous octoate, dibutyl tin laurate or the organic bismuth catalyst, and organic bismuth catalyst can be the BiCAT 8118 of outsourcing, BiCAT 8108 etc.Described auxiliary agent comprises flow agent, regulates the organosilicon and the hand feeling agent of surperficial feel, and flow agent can be the BYK-378 of outsourcing etc., and the silicone based CoatOSil 2812 that can be, CoatOSil 3573 etc., hand feeling agent can be wax class hand feeling agent or oils hand feeling agent etc.Described solvent is N, any in dinethylformamide, toluene, butanone, acetone, EGME, propylene glycol monomethyl ether, ETHYLE ACETATE, Virahol, the isopropylcarbinol or the mixture more than two kinds.Described urethane resin is any or the mixture more than two kinds in aromatic polyester urethane resin, aromatic polyether urethane resin, aliphatic polyether urethane resin, the aliphatic polyester urethane resin; Described hydroxyl-terminated polyurethane resin is any or the mixture more than two kinds in the aliphatic polyester urethane resin of aliphatic polyether urethane resin, terminal hydroxy group of aromatic polyether urethane resin, the terminal hydroxy group of aromatic polyester urethane resin, the terminal hydroxy group of terminal hydroxy group.
Described first part processes according to following method: urethane resin, hydroxy polyester resin and hydroxyl-terminated polyurethane resin are added in the stirring tank; Add solvent while stirring, stirred 20-40 minute; Add auxiliary agent, catalyzer and organic-silicon-modified vinyl resin more while stirring, stirred 10-30 minute; Filter at last and process first part.
Earlier first part and second section are mixed; Then through roller coat, print or spray to leather surface; Toast and make it carry out cross-linking and curing reaction, storing temperature is 130 degree-150 degree, and storing time is 2-6 minute.If second section is not end capped polyisocyanate curing agent, then got final product in storing time 2-4 minute, if adopt case type solidifying agent to need 5-6 minute storing time.
After the present invention handles leather surface, can help the scribble of leather opposing permanent pen, ballpoint pen and gel ink pen etc., leather is played good protection effect; Effectively weaken leatherware and receive the scribble pollution in use; The vestige of scribbling is removed in wiping easily, recovers leather good surface appearance effect, in addition; After the present invention handles leather surface, do not influence the appearance and the feel of leather.
Embodiment
Through embodiment the present invention is done further description below.
Embodiment 1
With 5 parts hydroxy polyester resin, 8 parts hydroxyl-terminated polyurethane resin, 34.8 parts urethane resin adds in the stirring tank, adds 25 parts of N then, and dinethylformamide, 10 parts of toluene and 10 parts of butanone stir 30min; Add 5 parts of organosilicon modified crylic acid resins, 0.2 part dibutyl tin laurate, 1 part flow agent and 1 part hand feeling agent then while stirring, continue to stir 20min, filter.
100 parts of first parts that prepare are mixed with 2.8 parts of HDI tripolymers, with the construction technology of printing it is handled the synthetic leather surface then, in 130 ℃ of baking ovens, toast 3min.Test the antigraffiti properties of synthetic leather then; The method of test is that the leather surface of anti-graffiti processing is scribbled with permanent pen, ballpoint pen and gel ink pen respectively; After vestige to be scribbled parches respectively with dried cloth, the cloth wiping of dipping in the cloth of water and dipping in 50% ethanolic soln; Situation after the investigation wiping, the result is as shown in table 2.The result shows that antigraffiti effect has all reached more than 4 grades.
Embodiment 2
Each set of dispense prepares first part than according to the component according to embodiment listed in the table 12 according to the preparation method shown in the embodiment 1.100 parts of first parts that prepare are mixed with 3.5 parts of HDI biurets, with the construction technology of roller coat it is handled the synthetic leather surface then, in 130 ℃ of baking ovens, toast 3min.Test the antigraffiti properties of synthetic leather then, the method for test is carried out according to the method for antigraffiti properties test among the embodiment 1, and test result is as shown in table 2.The result shows that antigraffiti effect has all reached more than 4 grades.
Embodiment 3
Each set of dispense prepares first part than according to the component according to embodiment listed in the table 13 according to the preparation method shown in the embodiment 1.100 parts of first parts that prepare are mixed with 9.5 parts of dead front type IPDI tripolymers, with the construction technology of roller coat it is handled the synthetic leather surface then, in 150 ℃ of baking ovens, toast 4min.Test the antigraffiti properties of synthetic leather then, the method for test is carried out according to the method for antigraffiti properties test among the embodiment 1, and test result is as shown in table 2.The result shows that antigraffiti effect has all reached more than 4 grades.
Embodiment 4
Each set of dispense prepares first part than according to the component according to embodiment listed in the table 13 according to the preparation method shown in the embodiment 1.100 parts of first parts that prepare are mixed with 6 parts of IPDI tripolymers, with the construction technology of printing it is handled the synthetic leather surface then, in 130 ℃ of baking ovens, toast 3min.Test the antigraffiti properties of synthetic leather then, the method for test is carried out according to the method for antigraffiti properties test among the embodiment 1, and test result is as shown in table 2.The result shows that antigraffiti effect has all reached more than 4 grades.
Embodiment 5
Each set of dispense prepares first part than according to the component according to embodiment listed in the table 15 according to the preparation method shown in the embodiment 1.The first part for preparing is mixed with 7.5 parts of dead front type HDI tripolymers, used N-BUTYL ACETATE according to finish again: the dilution proportion of N-BUTYL ACETATE=1: 3, with the construction technology of spraying it is handled the synthetic leather surface, in 150 ℃ of baking ovens, toast 4min.Test the antigraffiti properties of synthetic leather then, the method for test is carried out according to the method for antigraffiti properties test among the embodiment 1, and test result is as shown in table 2.The result shows that antigraffiti effect has all reached more than 4 grades.
Embodiment 6
Each set of dispense prepares first part than according to the component according to embodiment listed in the table 16 according to the preparation method shown in the embodiment 1.The first part for preparing is mixed with 4.5 parts of HDI tripolymers, used N-BUTYL ACETATE according to finish again: the dilution proportion of N-BUTYL ACETATE=1: 3, with the construction technology of spraying it is handled the synthetic leather surface, in 150 ℃ of baking ovens, toast 3min.Test the antigraffiti properties of synthetic leather then, the method for test is carried out according to the method for antigraffiti properties test among the embodiment 1, and test result is as shown in table 2.The result shows; Except that slightly poor with dried cloth wiping effect; Dip in the water wiping and all reached more than 4 grades with the antigraffiti effect of 50% ethanolic soln wiping, this prescription has reduced organic-silicon-modified vinyl resin, on the basis that suitably reduces antigraffiti properties, has realized better economy.
Table 1: each constituent mass proportioning of each embodiment first part
Table 2: the test result of each embodiment antigraffiti effect
Subordinate list explanation: other assessment method of wiping effect level
| 5 grades | Basically there is not vestige after the wiping |
| 4 grades | Stay very light vestige after the wiping |
| 3 grades | Major part is gone in wiping, has than obvious marks |
| 2 grades | Only wipe small portion, clearly vestige is arranged |
| 1 grade | Can't wipe fully |
Claims (8)
1. anti-graffiti hide finishes; It is characterized in that it is made up of two parts of separately depositing; The material composition of first part and quality percentage composition are following: hydroxy polyester resin 3%-30%, hydroxyl-terminated polyurethane resin 3%-30%, urethane resin 0%-50%, organic-silicon-modified vinyl resin 1%-15%, catalyzer 0.1%-1%, auxiliary agent 0.5%-5%, all the other are solvent; Second section is a polyisocyanate curing agent, in the second section NCO molar weight of solidifying agent be hydroxyl molar weight in the first part 1-1.05 doubly.
2. a kind of anti-graffiti hide finishes according to claim 1 is characterized in that described polyisocyanate curing agent is hexamethylene diisocyanate biuret, hexamethylene diisocyanate trimer, isophorone diisocyanate trimer or uses the blocked polyisocyanate solidifying agent of above-mentioned polyisocyanate curing agent as the basis.
3. a kind of anti-graffiti hide finishes according to claim 1 is characterized in that described catalyzer is any or the mixture more than two kinds in stannous octoate, dibutyl tin laurate or the organic bismuth catalyst.
4. a kind of anti-graffiti hide finishes according to claim 1 is characterized in that described auxiliary agent comprises flow agent, regulates the organosilicon and the hand feeling agent of surperficial feel.
5. a kind of anti-graffiti hide finishes according to claim 1; It is characterized in that described solvent is N, any in dinethylformamide, toluene, butanone, acetone, EGME, propylene glycol monomethyl ether, ETHYLE ACETATE, Virahol, the isopropylcarbinol or the mixture more than two kinds.
6. a kind of anti-graffiti hide finishes according to claim 1 is characterized in that described urethane resin is any or the mixture more than two kinds in aromatic polyester urethane resin, aromatic polyether urethane resin, aliphatic polyether urethane resin, the aliphatic polyester urethane resin; Described hydroxyl-terminated polyurethane resin is any or the mixture more than two kinds in the aliphatic polyester urethane resin of aliphatic polyether urethane resin, terminal hydroxy group of aromatic polyether urethane resin, the terminal hydroxy group of aromatic polyester urethane resin, the terminal hydroxy group of terminal hydroxy group.
7. a kind of anti-graffiti hide finishes according to claim 1 is characterized in that described first part processes according to following method: urethane resin, hydroxy polyester resin and hydroxyl-terminated polyurethane resin are added in the stirring tank; Add solvent while stirring, stirred 20-40 minute; Add auxiliary agent, catalyzer and organic-silicon-modified vinyl resin more while stirring, stirred 10-30 minute; Filter at last and process first part.
8. the method for use of each said anti-graffiti hide finishes of claim 1-7 is characterized in that earlier first part and second section being mixed; Then through roller coat, print or spray to leather surface; Toast and make it carry out cross-linking and curing reaction, storing temperature is 130 degree-150 degree, and storing time is 2-6 minute.
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| CN2011100396448A CN102146260B (en) | 2011-02-17 | 2011-02-17 | Anti-graffito leather finishing agent and using method thereof |
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| CN2011100396448A CN102146260B (en) | 2011-02-17 | 2011-02-17 | Anti-graffito leather finishing agent and using method thereof |
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| CN102146260B true CN102146260B (en) | 2012-06-06 |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102535171A (en) * | 2011-12-08 | 2012-07-04 | 浙江深蓝轻纺科技有限公司 | Waterborne polyurethane finishing agent for matting type synthetic leather and preparation method thereof |
| CN103361989A (en) * | 2013-07-30 | 2013-10-23 | 浙江禾欣实业集团股份有限公司 | Manufacturing method for antifouling and doodle-preventing polyurethane (PU) synthetic leather |
| CN104371527B (en) * | 2014-10-31 | 2017-07-21 | 宁波威霖住宅设施有限公司 | Coating, spraying coating process and its application with sterilization anti-fingerprint feel function |
| CN105064050B (en) * | 2015-08-07 | 2017-10-27 | 无锡双象超纤材料股份有限公司 | A kind of preparation method of anti-graffiti super fiber leather |
| CN105969145B (en) * | 2016-07-06 | 2018-09-28 | 浙江枧洋高分子科技有限公司 | Without xanthochromia type one-component antifouling treatment agent and its preparation method and application |
| CN106739599B (en) * | 2016-12-12 | 2019-09-10 | 广东溢达纺织有限公司 | The production method of imitation leather trade mark |
| CN110938358A (en) * | 2018-09-21 | 2020-03-31 | 贝内克-长顺汽车内饰材料（张家港）有限公司 | Waterborne polyurethane paint, high-water-resistance product prepared from same and high-water-resistance leather |
| CN110951927A (en) * | 2018-09-27 | 2020-04-03 | 句容市飞达箱包有限公司 | Leather material for luggage and preparation method thereof |
| CN110004255A (en) * | 2019-04-29 | 2019-07-12 | 上海皇宇科技发展有限公司 | The protection care agent and its manufacturing method of a kind of aniline skin, oily wax coating for a big pill high-quality leather |
| CN113462270A (en) * | 2021-06-02 | 2021-10-01 | 广东巨圣新材料科技有限公司 | PU and PVC treating agent and preparation method thereof |
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Address after: 310000, 2, Jiang Shan Road, Mei Town, Jiande City, Zhejiang, Hangzhou Patentee after: Zhejiang deep blue new material Polytron Technologies Inc Address before: 313200 Zhejiang city of Huzhou province Deqing County Xin'an Xin Hui Road No. 120 Patentee before: Zhejiang Sunlight Textile Technology Co., Ltd. |