CN109182622B - Leather care waterproof film forming agent and preparation method thereof - Google Patents
Leather care waterproof film forming agent and preparation method thereof Download PDFInfo
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- CN109182622B CN109182622B CN201810902781.1A CN201810902781A CN109182622B CN 109182622 B CN109182622 B CN 109182622B CN 201810902781 A CN201810902781 A CN 201810902781A CN 109182622 B CN109182622 B CN 109182622B
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- forming agent
- waterproof film
- dermis
- film forming
- leather
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- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14C—CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
- C14C11/00—Surface finishing of leather
-
- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14C—CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
- C14C9/00—Impregnating leather for preserving, waterproofing, making resistant to heat or similar purposes
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment And Processing Of Natural Fur Or Leather (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The invention discloses a leather care waterproof film-forming agent and a preparation method thereof. The dermis nursing waterproof film forming agent is prepared from the following raw materials in percentage by mass: 50-60% of fluorine-containing polymer emulsion; 5-7% of amino silicone oil; 2 to 7 percent of isomeric tridecanol; 1% -3% of polyether modified silicone oil; 0 to 10 percent of aliphatic polyurethane resin; 0 to 10 percent of emulsified silicone oil; 0 to 15 percent of isopropanol; the balance of water. Also discloses a preparation method and a use method of the dermis nursing waterproof film forming agent. The dermis nursing waterproof film forming agent can form a waterproof and antifouling protective film on the surfaces of all dermis, and achieves the hydrophobic effect while protecting the dermis.
Description
Technical Field
The invention relates to a leather care waterproof film-forming agent and a preparation method thereof.
Background
The leather is animal skin which is obtained by physical and chemical processing such as unhairing, tanning and the like and is denatured and non-perishable. The leather has wide application and can be used for manufacturing various daily necessities, such as leather shoes, clothes and the like. The raw material used for the genuine leather is natural leather. The natural leather is superior to other materials in the properties of flexibility, ventilation, wear resistance, folding resistance, beautiful appearance and the like, and is a necessary material for high-grade leather products. However, these products are very permeable to water, and the leather surface is easily wetted or contaminated with various moisture or steam due to wet weather or rain. If the leather product is not waterproofed, the leather is easily rotten and deteriorated, which seriously shortens the service life of the leather product and also affects the beauty and the experience of consumers. Therefore, waterproofing treatment of the genuine leather is necessary.
The waterproof care agent for the dermis is generally required to have the following effects: the leather has the advantages of no change of original luster, color and air permeability of the leather, capability of permeating the surface of the leather, convenient and simple use, and suitability for production. Documents such as CN103132315A, CN104479551A, CN106497411A, CN107761381A and the like all disclose leather waterproof agent products. However, most of the existing leather waterproof agents have poor waterproof effect, leather is easy to fade, and the existing leather waterproof agents have low stability and cannot be durable, so that further improvement and perfection are needed. Therefore, the leather nursing waterproof product which has a good waterproof effect, can be flexibly adjusted to produce according to the needs of the product and is easy to use is urgently needed to be developed, and the market requirements are met.
Disclosure of Invention
The invention aims to provide a genuine leather nursing waterproof film forming agent and a preparation method thereof, wherein the genuine leather nursing waterproof film forming agent can enable the leather surface to form a very thin waterproof and hydrophobic effect, and the thickness of the film forming agent can be adjusted according to different leather products.
The technical scheme adopted by the invention is as follows:
the dermis nursing waterproof film forming agent is prepared from the following raw materials in percentage by mass:
in the dermis nursing waterproof film forming agent, the fluorine-containing polymer emulsion is perfluoroacrylate polymer emulsion.
In the dermis nursing waterproof film forming agent, the ammonia value range of the amino silicone oil is 0.2 mmol/g-0.6 mmol/g.
In the dermis nursing waterproof film forming agent, water is at least one of deionized water, distilled water and purified water.
The preparation method of the dermis care waterproof film forming agent comprises the steps of weighing the raw materials according to the components, mixing and stirring to obtain the dermis care waterproof film forming agent.
In the preparation method, the mixing and stirring are specifically to place the materials in a reaction kettle, heat the materials to 80-90 ℃ under the vacuum condition, and mix and stir the materials for 50-70 min.
The application method of the dermis care waterproof film forming agent is to spray or paint the dermis care waterproof film forming agent on the surface of a dermis product.
The invention has the beneficial effects that:
the dermis nursing waterproof film forming agent can form a waterproof and antifouling protective film on the surfaces of all dermis, and achieves the hydrophobic effect while protecting the dermis.
The method comprises the following specific steps:
1) the fluorine-containing polymer emulsion can be dispersed in a solution to form a stable dispersion when being added into a system, so that a special hydrophobic waterproof effect is formed on the surface of dermis, and the air permeability of the surface of dermis is not influenced. The perfluorinated polymer is close to and associated with non-polar groups (such as hydrocarbon chains) in an aqueous solution to form hydrophobic interaction. As a result of the hydrophobic interaction, there is a significant attraction between the non-polar molecules or groups in the aqueous medium. Hydrophobic, however, does not mean that such nonpolar molecules repel water without van der Waals attraction, but rather that the nonpolar molecules or groups themselves self-associate and exhibit a tendency to escape from the aqueous medium, increasing the contact angle, and dripping water onto the dermal surface appears to resemble a lotus leaf.
2) The amino silicone oil, the isotridecanol surfactant and the modified polyether silicone oil can clean the leather, and the oil brightness penetrates into leather fibers to soften the leather. The aliphatic polyurethane resin can adjust the film-forming thickness on the surface of the dermis according to the proportion of the added mixed solution, so as to protect the surface of the dermis and achieve the effect of being more hydrophobic together with the waterproof agent. Isopropanol and deionized water are added, the isopropanol can adjust the volatilization speed of the solution, and the deionized water can effectively dissolve various substances, so that the use is more convenient.
Detailed Description
The dermis nursing waterproof film forming agent is prepared from the following raw materials in percentage by mass:
the sum of the mass percentages of the components of the dermis nursing waterproof film forming agent is 100%.
Preferably, in the dermis care waterproof film forming agent, the fluorine-containing polymer emulsion is perfluoroacrylate polymer emulsion; further, the perfluoroacrylate polymer emulsion may be selected from perfluoroalkylethyl acrylates.
Preferably, in the dermis care waterproof film forming agent, the ammonia value range of the amino silicone oil is 0.2 mmol/g-0.6 mmol/g; more preferably, in the dermis care waterproof film forming agent, the ammonia value of the amino silicone oil ranges from 0.2mmol/g to 0.3 mmol/g.
Furthermore, in the dermis nursing waterproof film forming agent, the polyether modified silicone oil is an organic silicon nonionic surfactant formed by graft copolymerization of polyether and dimethyl siloxane.
Preferably, in the dermis care waterproof film forming agent, water is at least one of deionized water, distilled water and purified water; further preferably, in the dermis care waterproof film forming agent, water is deionized water.
The preparation method of the dermis care waterproof film forming agent comprises the steps of weighing the raw materials according to the components, mixing and stirring to obtain the dermis care waterproof film forming agent.
Preferably, in the preparation method, the mixing and stirring are specifically to place the materials in a reaction kettle, heat the materials to 80-90 ℃ under the vacuum condition, and mix and stir the materials for 50-70 min.
The application method of the dermis care waterproof film forming agent is to spray or paint the dermis care waterproof film forming agent on the surface of a dermis product.
Furthermore, the spraying or coating amount of the dermis care waterproof film forming agent is used for uniformly covering the surface of a dermis product to form a thin protective film layer.
The present invention will be described in further detail with reference to specific examples. The starting materials used in the examples are, unless otherwise specified, commercially available from conventional sources.
Example 1:
example 1 raw materials and mass percentages of the dermal care waterproof film-forming agent are shown in table 1. The fluoropolymer emulsion used in example 1 was a perfluoroalkylethyl acrylate emulsion, and the amino silicone oil had an ammonia value of 0.27 mmol/g.
Table 1 example 1 dermal care waterproof film former composition
| Raw materials | Mass percent (%) |
| Fluoropolymer emulsions | 50 |
| Amino silicone oil | 7 |
| Isomeric tridecanols | 2 |
| Aliphatic polyurethane resin | 10 |
| Emulsified silicone oil | 10 |
| Polyether modified silicone oil | 1 |
| Deionized water | 20 |
The raw materials described in table 1 are weighed according to the mixture ratio, placed in a reaction kettle, heated to 85 ℃ under the vacuum condition (0.01-0.02 MPa), stirred for 60min, cooled to room temperature and discharged to obtain the dermis nursing waterproof film-forming agent of the embodiment 1.
The leather clothes sprayed with the product of example 1 on the surface are dripped with water drops for waterproof test, and the water drops are found to have the effect similar to lotus leaves on the leather surface, so that the good waterproof and hydrophobic effect is achieved.
Static waterproof test: the leather clothes sprayed with the product of example 1 were subjected to a waterproof test and left standing for 8 hours, and it was found that water droplets did not penetrate into the inside of the leather clothes within 8 hours.
Dynamic waterproof test: the leather clothes with the surface sprayed with the product of the example 1 is folded for 100 times, and then a waterproof test is carried out, so that water drops still flow away in a lotus leaf shape and cannot permeate into the clothes, and a good waterproof and hydrophobic effect is achieved.
Example 2:
example 2 raw materials and mass percentages of the dermal care waterproof film-forming agent are shown in table 2. The raw materials used in example 2 were the same as those used in example 1 unless otherwise specified.
Table 2 example 2 dermis care waterproof film former composition
| Raw materials | Mass percent (%) |
| Fluoropolymer emulsions | 60 |
| Amino silicone oil | 7 |
| Isomeric tridecanols | 3 |
| Aliphatic polyurethane resin | 1 |
| Emulsified silicone oil | 7 |
| Polyether modified silicone oil | 2 |
| Deionized water | 20 |
The raw materials described in table 2 are weighed according to the mixture ratio, placed in a reaction kettle, heated to 85 ℃ under a vacuum condition (0.01-0.02 MPa), stirred for 60min, cooled to room temperature, and discharged to obtain the dermis care waterproof film-forming agent of the embodiment 2. The product of example 2 is a product aimed at dermal scrub. The ground leather layer on the surface of the real leather is ground by a mechanical grinding machine, a leather with a suede surface is led out, and the waterproof test of the ground leather is basically the same as that of a grain-surface leather.
Example 3:
example 3 raw materials and mass percentages of the dermal care waterproof film-forming agent are shown in table 3. The raw materials used in example 3 were the same as those used in example 1 unless otherwise specified.
Table 3 example 3 leather care waterproof film former composition
| Raw materials | Mass percent (%) |
| Fluoropolymer emulsions | 50 |
| Amino silicone oil | 5 |
| Isomeric tridecanols | 6 |
| Aliphatic polyurethane resin | 7 |
| Emulsified silicone oil | 2 |
| Polyether modified silicone oil | 2 |
| Isopropanol (I-propanol) | 10 |
| Deionized water | 18 |
The raw materials described in table 3 are weighed according to the mixture ratio, placed in a reaction kettle, heated to 85 ℃ under the vacuum condition (0.01-0.02 MPa), stirred for 60min, cooled to room temperature and discharged to obtain the dermis nursing waterproof film-forming agent of the embodiment 3.
The leather clothes sprayed with the product of example 3 on the surface are dripped with water drops for waterproof test, and the water drops are found to have the effect similar to lotus leaves on the leather surface, so that the good waterproof and hydrophobic effect is achieved.
Static waterproof test: the leather clothes sprayed with the product of example 3 were subjected to a waterproof test and left standing for 8 hours, and it was found that water droplets did not penetrate into the inside of the leather clothes within 8 hours.
Dynamic waterproof test: the leather clothes with the surface sprayed with the product of the example 3 is folded for 100 times, and then a waterproof test is carried out, so that water drops still flow away in a lotus leaf shape and cannot permeate into the clothes, and a good waterproof and hydrophobic effect is achieved.
Example 4:
example 4 raw materials and mass percentages of the dermal care waterproof film-forming agent are shown in table 4. The raw materials used in example 4 were the same as those used in example 1 unless otherwise specified.
Table 4 example 4 dermis care waterproof film former composition
| Raw materials | Mass percent (%) |
| Fluoropolymer emulsions | 60 |
| Amino silicone oil | 5 |
| Isomeric tridecanols | 7 |
| Polyether modified silicone oil | 3 |
| Isopropanol (I-propanol) | 15 |
| Deionized water | 10 |
The raw materials described in table 4 are weighed according to the mixture ratio, placed in a reaction kettle, heated to 85 ℃ under a vacuum condition (0.01-0.02 MPa), stirred for 60min, cooled to room temperature, and discharged to obtain the dermis care waterproof film-forming agent of the embodiment 4. The product of example 4 is a water repellent product of a leather oil wax skin. The real leather oil wax leather is formed by rolling or spraying a layer of oil or wax on the surface of a real leather blank, can achieve a color change effect or a wax change effect, generally requires higher waterproof effect on the leather, waterproof products with proper proportion are added at a processing section of a leather water plant, and then the surface of the leather blank is treated by using the formula shown in the table 4, so that better waterproof effect is obtained.
The leather clothes with the surfaces coated with the products of the embodiment 4 are dripped with water drops for waterproof tests, and the water drops are found to have the effect similar to a lotus leaf on the leather surface, so that the good waterproof and hydrophobic effects are achieved.
Static waterproof test: the leather clothes coated with the product of example 4 on the surface were subjected to a water-proof test and left standing for 8 hours, and it was found that water droplets did not penetrate into the inside of the leather clothes within 8 hours.
Dynamic waterproof test: after the leather clothes coated with the product of example 4 on the surface are folded for 100 times, a waterproof test is carried out, and the water drops are still in a lotus leaf shape and flow away, and cannot permeate into the clothes, so that a good waterproof and hydrophobic effect is achieved.
The above-presented embodiments are intended to illustrate the inventive concept and are not intended to be exhaustive or to limit the invention to the precise form disclosed. In light of the embodiments provided, any arrangement made is within the scope of the present invention.
Claims (6)
1. A waterproof film-forming agent for leather care is characterized in that: the composite material consists of the following raw materials in percentage by mass:
50% -60% of a fluorine-containing polymer emulsion;
5% -7% of amino silicone oil;
2% -7% of isomeric tridecanol;
1% -3% of polyether modified silicone oil;
0% -10% of aliphatic polyurethane resin;
0% -10% of emulsified silicone oil;
0% -15% of isopropanol;
the balance of water;
the fluorine-containing polymer emulsion is perfluoroacrylate polymer emulsion.
2. The dermal care waterproof film former of claim 1, wherein: the ammonia value of the amino silicone oil ranges from 0.2mmol/g to 0.6 mmol/g.
3. The dermal care waterproof film former of claim 1, wherein: the water is at least one of deionized water and distilled water.
4. A preparation method of a dermis nursing waterproof film forming agent is characterized in that: weighing the raw materials according to any one of claims 1 to 3, and mixing and stirring to obtain the dermis care waterproof film forming agent.
5. The method for preparing the dermal care waterproof film-forming agent according to claim 4, wherein the method comprises the following steps: the mixing and stirring are specifically to place the materials in a reaction kettle, heat the materials to 80-90 ℃ under a vacuum condition, and mix and stir the materials for 50-70 min.
6. The use method of the dermal care waterproof film forming agent according to any one of claims 1 to 3, wherein the method comprises the following steps: the dermis care waterproof film forming agent is sprayed or smeared on the surface of a dermis product.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810902781.1A CN109182622B (en) | 2018-08-09 | 2018-08-09 | Leather care waterproof film forming agent and preparation method thereof |
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| CN201810902781.1A CN109182622B (en) | 2018-08-09 | 2018-08-09 | Leather care waterproof film forming agent and preparation method thereof |
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| CN109182622A CN109182622A (en) | 2019-01-11 |
| CN109182622B true CN109182622B (en) | 2021-02-26 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111286564B (en) * | 2020-04-23 | 2022-05-24 | 杭州天龙手袋股份有限公司 | Real leather for leather bags and finishing method thereof |
| CN111543753B (en) * | 2020-06-05 | 2022-07-12 | 杭州天龙手袋股份有限公司 | Handbag with cowhide finishing layer |
| CN113929535A (en) * | 2021-12-02 | 2022-01-14 | 安徽富瑞雪化工科技股份有限公司 | Environment-friendly anti-blocking agent for compound fertilizer and preparation method thereof |
| CN115213072A (en) * | 2021-12-09 | 2022-10-21 | 广州汽车集团股份有限公司 | Stain-resistant light-color leather automobile seat fabric |
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| CN102924649A (en) * | 2012-10-25 | 2013-02-13 | 陕西科技大学 | Preparation method of high-hydrophobicity leather coating agent |
| CN104946819A (en) * | 2015-05-28 | 2015-09-30 | 青岛启源振东电气有限公司 | Improved leather maintenance agent |
| CN105256578A (en) * | 2015-11-09 | 2016-01-20 | 广州大学 | Waterborne three-proofing leather finishing agent and using method thereof |
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2018
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| CN102924649A (en) * | 2012-10-25 | 2013-02-13 | 陕西科技大学 | Preparation method of high-hydrophobicity leather coating agent |
| CN104946819A (en) * | 2015-05-28 | 2015-09-30 | 青岛启源振东电气有限公司 | Improved leather maintenance agent |
| CN105256578A (en) * | 2015-11-09 | 2016-01-20 | 广州大学 | Waterborne three-proofing leather finishing agent and using method thereof |
Non-Patent Citations (1)
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Address after: No. 75, Jinshi 1st Street, Shiling Town, Huadu District, Guangzhou City, Guangdong Province, 510000 Patentee after: GUANGZHOU DIFUCOLOR IMPORT AND EXPORT TRADE CO.,LTD. Patentee after: GUANGZHOU HUIMAI INDUSTRIAL Co.,Ltd. Address before: 510399 Room 203, 5 Caiyu street, diejing Road, Haizhu District, Guangzhou City, Guangdong Province Patentee before: GUANGZHOU DIFUCOLOR IMPORT AND EXPORT TRADE CO.,LTD. Patentee before: GUANGZHOU HUIMAI INDUSTRIAL Co.,Ltd. |