CN112029931A - Weak solvent cotton smooth and bright leather treatment agent and preparation method thereof - Google Patents
Weak solvent cotton smooth and bright leather treatment agent and preparation method thereof Download PDFInfo
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- CN112029931A CN112029931A CN202010939613.7A CN202010939613A CN112029931A CN 112029931 A CN112029931 A CN 112029931A CN 202010939613 A CN202010939613 A CN 202010939613A CN 112029931 A CN112029931 A CN 112029931A
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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
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D101/00—Coating compositions based on cellulose, modified cellulose, or cellulose derivatives
- C09D101/08—Cellulose derivatives
- C09D101/16—Esters of inorganic acids
- C09D101/18—Cellulose nitrate
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/20—Diluents or solvents
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Treatment And Processing Of Natural Fur Or Leather (AREA)
Abstract
The invention relates to a weak solvent cotton smooth and bright leather treating agent and a preparation method thereof, belonging to the technical field of leather coatings, and the agent comprises the following steps in parts by weight: s1, mixing and stirring 1/8 parts of nitrocotton per second, 5-10 parts of 1/16 parts of nitrocotton per second, 400 parts of weak solvent and 40-50 parts of soybean oil; s2: stirring and adding 33-40 parts of wetting wax, 6-8 parts of dry auxiliary agent and 3-4 parts of cotton wax auxiliary agent; s3, adding 5-10 parts of weak solvent resin; s4: adding 350 portions of weak solvent 300 and completely dispersing. The preparation method is scientific and reasonable, the astringent wax feeling auxiliary agent and the wet feeling auxiliary agent are matched with the weak solvent wax feeling resin and the nitrocotton of two types, the weak solvent soft, smooth and bright treating agent is provided, the problems of insufficient side white light and oily wax light and the like in surface treatment of high-grade leather products are solved without increasing the cost, the market development requirements are met, and a new market is developed.
Description
Technical Field
The invention relates to the technical field of leather coatings, in particular to a weak solvent cotton smooth and bright leather treating agent and a preparation method thereof.
Background
With the development of leather industry, the strong solvent type surface treating agent has the problems of side white light and insufficient oil wax light, and the application of the strong solvent type surface treating agent in high-grade leather is greatly limited. When the leather is made of the bright leather series products such as common brightening and oil-permeable leather, white light exists when the products are viewed from the side, and the surface has wax finish. In order to solve the problem of brightening of high-grade leather, a water-based environment-friendly treating agent is generally adopted in the market, but the water-based treating agent has insufficient hydrolysis resistance, the cost is generally higher, and the manufacturing cost of the product is increased.
The above scheme has the defects that: the strong solvent type surface treating agent has the defects of poor light sensation and hand feeling, and the water-based surface treating agent has insufficient hydrolysis resistance and high cost, and is difficult to meet the requirements of the current leather market, so the improvement is needed.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a weak-solvent soft and smooth brightening agent, which solves the problems of insufficient side white light and oil wax light and the like in surface treatment of high-grade leather products without increasing the cost, meets the market development requirements, and develops a new market. The technical purpose of the invention is realized by the following technical scheme: the weak solvent cotton smooth and bright leather treating agent is characterized by comprising the following raw materials in parts by weight:
the weak solvent resin is high-modulus temperature-resistant weak solvent resin.
Further, the weak solvent comprises the following raw materials in parts by weight:
the preparation method of the weak solvent cotton smooth and bright leather treating agent is characterized by comprising the following steps:
s1, mixing and stirring 1/8 parts of nitrocotton per second, 5-10 parts of 1/16 parts of nitrocotton per second, 400 parts of weak solvent and 40-50 parts of soybean oil;
s2: stirring and adding 33-40 parts of wetting wax, 6-8 parts of dry auxiliary agent and 3-4 parts of cotton wax auxiliary agent;
s3, adding 5-10 parts of weak solvent resin;
s4: adding 350 portions of weak solvent 300 and completely dispersing.
Further, the stirring process is carried out by using a stirrer.
Further, in S1, S2, S3 and S4, the stirring process was not stopped when the raw materials were added.
Further, at step S1, the stirrer is maintained at 1500-.
Further, in step S1, the 1/8 second nitro-cotton and 1/16 second nitro-cotton are pre-soaked in the weak solvent for more than 6 hours.
Further, the amount of the weak solvent resin to be added is determined by the product test results.
Furthermore, the product detection result comprises oil permeability, cotton wax hand feeling, dry hand feeling and bonding condition under the condition of folding at high temperature and high pressure.
Further, in S1, S2, S3 and S4, a filter screen of 150-.
In conclusion, the invention has the following beneficial effects:
first, the weak solvent treatment carrier resin has a lower modulus than the strong solvent treatment, and therefore has good transparency and good oil level, but insufficient brightness. The weak solvent type treating agent has the advantages that balance points of various aspects of performances are well controlled by adding nitrocotton, and the brightness is improved by optimizing the collocation of carriers under the condition of ensuring the oil penetration, so that the problem of insufficient brightness of a weak solvent type product is solved.
Secondly, the weak solvent treatment agent is under the high pressure fifty percent discount condition, and the high temperature environment condition that the leather face bonding is in the same place appears easily, and this application promotes the resin modulus through nitrocotton, improves the high pressure resistant high temperature resistance performance of product under the prerequisite that does not influence the product oil degree of penetrating, solves product high temperature environment and appears adhesive problem, and simultaneously, the release of solvent when adding nitrocotton and helping the product to use.
Thirdly, the flocculent nitrocotton of powder is too big in size, is not convenient for directly add at the stirring in-process, consequently, adopts the process of soaking in advance, and the dispersion is more even, reduces the churning time.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:
FIG. 1 is a flow chart of a preparation method of the weak solvent cotton smooth and bright leather treatment agent.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The weak solvent cotton smooth and bright leather treating agent is characterized by comprising the following raw materials in parts by weight: 150 parts of 1/8 second nitrocotton, 7 parts of 1/16 nitrocotton, 7 parts of weak solvent resin, 37 parts of wetting wax, 7 parts of dry auxiliary agent, 3.5 parts of cotton wax auxiliary agent, 46 parts of soybean oil, 65 parts of butanone, 12 parts of cyclohexanone, 300 parts of anti-white water and 320 parts of ethyl acetate.
A technical scheme is to provide a preparation method of a weak solvent cotton smooth and bright leather treating agent, which is characterized by comprising the following steps:
s1, mixing and stirring 1/8 seconds of nitrocotton, 1/16 seconds of nitrocotton, a weak solvent and soybean oil;
s2: adding wetting wax, dry auxiliary agent and cotton wax auxiliary agent by stirring;
s3, adding weak solvent resin;
s4: and adding a weak solvent, and completely dispersing.
The stirring process is carried out by adopting a stirrer, the stirring process is not stopped when the raw materials are added in S1, S2, S3 and S4, the stirrer is kept at 1500-2000 rpm in step S1, the stirring time is longer than 10 minutes, 1/8-second nitrocotton and 1/16-second nitrocotton are soaked in a weak solvent in advance in step S1, the soaking time is longer than 6 hours, the addition amount of the weak solvent resin is determined by product detection results in S3, the product detection results comprise oil permeability, cotton wax hand feeling, dry hand feeling and bonding condition under folding high temperature and high pressure, and a 150-mesh 200-mesh filter screen is adopted for filtering when the liquid raw materials are added in S1, S2, S3 and S4.
Example 2
The embodiment provides a weak solvent cotton smooth and bright leather treating agent component and a preparation method thereof, the steps of the agent component are the same as those of the embodiment I, and the difference of the components is as follows:
1/8 nitrocotton 5 parts, weak solvent resin 5 parts, wetting wax 33 parts, dry cleaning assistant 6 parts, cotton wax assistant 3 parts, soybean oil 40 parts, butanone 60 parts, cyclohexanone 10 parts, white water prevention 230 parts, and ethyl acetate 300 parts.
Example 3
The embodiment provides a weak solvent cotton smooth and bright leather treating agent component and a preparation method thereof, the steps of the agent component are the same as those of the embodiment I, and the difference of the components is as follows:
1/8 parts of nitrocotton, 10 parts of weak solvent resin, 40 parts of wetting wax, 8 parts of dry and comfortable auxiliary agent, 4 parts of cotton wax auxiliary agent, 50 parts of soybean oil, 70 parts of butanone, 15 parts of cyclohexanone, 310 parts of anti-white water and 350 parts of ethyl acetate.
The weak solvent soft and smooth brightening agent prepared by the 3 embodiments can solve the problems of side white light, oil wax light deficiency and the like in the surface treatment of high-grade leather products without increasing the cost, is suitable for the market development requirement, and develops a new market.
Description of the drawings: the weak solvent type treating agent carrier resin has lower modulus than that of the strong solvent type treating agent, so that the feeling of penetration is good, the oil degree is good, but the brightness is insufficient. The weak solvent type treating agent disclosed by the application has the advantages that by adding nitrocotton, balance points of performances of all aspects are well controlled, and by optimizing carrier collocation, the brightness is improved as much as possible under the condition of ensuring oil penetration, so that the problem of insufficient brightness of a weak solvent type product is solved; the weak solvent treating agent is easy to adhere leather surfaces together in a high-temperature environment under the condition of high-pressure folding, the modulus of resin is improved through the nitrocotton, the high-pressure and high-temperature resistance of the product is improved on the premise of not influencing the oil permeability of the product, the problem of adhesion of the product in the high-temperature environment is solved, and meanwhile, the nitrocotton is added to help the solvent to be released when the product is used; because a weak solvent system is adopted, and the mixed solvent needs to have good performance for dissolution, the weak solvent is prepared by mixing four solvents, and the using effect of the product is ensured; the flocculent nitrocotton powder has too large volume and is inconvenient to be directly added in the stirring process, so the pre-soaking process is adopted, the dispersion is more uniform, and the stirring time is reduced.
The preparation method is more scientific and reasonable, the astringent wax feeling auxiliary agent, the wet feeling auxiliary agent are matched with the weak solvent wax feeling resin and the nitrocotton of two types, the weak solvent soft, smooth and bright treating agent is provided, the problems of insufficient side white light and oil wax light and the like in surface treatment of high-grade leather products are solved without increasing the cost, the market development requirements are met, and a new market is developed.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The weak solvent cotton smooth and bright leather treating agent is characterized by comprising the following raw materials in parts by weight:
the weak solvent resin is high-modulus temperature-resistant weak solvent resin.
2. The weak solvent cotton smooth and bright leather treating agent as claimed in claim 1, wherein the weak solvent comprises the following raw materials in parts by weight:
3. a preparation method of a weak solvent cotton smooth and bright leather treatment agent is characterized by comprising the following steps:
s1, mixing and stirring 1/8 parts of nitrocotton per second, 5-10 parts of 1/16 parts of nitrocotton per second, 400 parts of weak solvent and 40-50 parts of soybean oil;
s2: stirring and adding 33-40 parts of wetting wax, 6-8 parts of dry auxiliary agent and 3-4 parts of cotton wax auxiliary agent;
s3, adding 5-10 parts of weak solvent resin;
s4: adding 350 portions of weak solvent 300 and completely dispersing.
4. The method for preparing a poor solvent cotton lubricous and bright leather treatment agent as claimed in claim 3, wherein the stirring process is performed by using a stirrer.
5. The method for preparing a poor solvent cotton lubricous and shiny leather treatment agent as claimed in claim 3, wherein in S1, S2, S3 and S4, the stirring process is not stopped when the raw materials are added.
6. The method as claimed in claim 3, wherein the stirrer is maintained at 1500-.
7. The method of claim 3, wherein 1/8 seconds of nitrocotton and 1/16 seconds of nitrocotton are pre-soaked in the weak solvent for more than 6 hours in step S1.
8. The method of claim 3, wherein the amount of the weak solvent resin added is determined according to the product test result in S3.
9. The method for preparing the weak solvent cotton smooth and bright leather treatment agent according to claim 8, wherein the product detection result comprises oil penetration, cotton wax hand feeling, dry hand feeling, and bonding condition under high temperature and high pressure in double folding.
10. The method as claimed in claim 3, wherein the liquid materials are filtered through a filter of 150-200 mesh when being added into S1, S2, S3 and S4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010939613.7A CN112029931A (en) | 2020-09-09 | 2020-09-09 | Weak solvent cotton smooth and bright leather treatment agent and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010939613.7A CN112029931A (en) | 2020-09-09 | 2020-09-09 | Weak solvent cotton smooth and bright leather treatment agent and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN112029931A true CN112029931A (en) | 2020-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010939613.7A Pending CN112029931A (en) | 2020-09-09 | 2020-09-09 | Weak solvent cotton smooth and bright leather treatment agent and preparation method thereof |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103015186A (en) * | 2012-12-24 | 2013-04-03 | 建德市顺发化工助剂有限公司 | Carbon black treating agent for synthetic leather and preparation method of carbon black treating agent |
| CN110592296A (en) * | 2019-09-24 | 2019-12-20 | 清远邦太新材料有限公司 | Natural wax light color-touching treatment agent and preparation method thereof |
| CN110628330A (en) * | 2019-09-24 | 2019-12-31 | 清远邦太新材料有限公司 | Water-based wax polishing dry-smooth leather polishing treatment agent and preparation method thereof |
-
2020
- 2020-09-09 CN CN202010939613.7A patent/CN112029931A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103015186A (en) * | 2012-12-24 | 2013-04-03 | 建德市顺发化工助剂有限公司 | Carbon black treating agent for synthetic leather and preparation method of carbon black treating agent |
| CN110592296A (en) * | 2019-09-24 | 2019-12-20 | 清远邦太新材料有限公司 | Natural wax light color-touching treatment agent and preparation method thereof |
| CN110628330A (en) * | 2019-09-24 | 2019-12-31 | 清远邦太新材料有限公司 | Water-based wax polishing dry-smooth leather polishing treatment agent and preparation method thereof |
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Application publication date: 20201204 |