CN108774915B - High-temperature-resistant anti-adhesion finishing oil - Google Patents
High-temperature-resistant anti-adhesion finishing oil Download PDFInfo
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- CN108774915B CN108774915B CN201810698772.5A CN201810698772A CN108774915B CN 108774915 B CN108774915 B CN 108774915B CN 201810698772 A CN201810698772 A CN 201810698772A CN 108774915 B CN108774915 B CN 108774915B
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/10—Coatings without pigments
- D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
- D21H19/20—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D21H19/22—Polyalkenes, e.g. polystyrene
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/10—Coatings without pigments
- D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
- D21H19/20—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/10—Coatings without pigments
- D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
- D21H19/24—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D21H19/32—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds obtained by reactions forming a linkage containing silicon in the main chain of the macromolecule
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Paper (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses high-temperature-resistant anti-adhesion finishing oil. The finishing oil comprises the following components in parts by mass: 60-80 parts of styrene-acrylic acid copolymer emulsion; 5-10 parts of water-based self-crosslinking acrylic emulsion; 8-10 parts of water-based wax emulsion; 6-10 parts of a solvent. The water-based finishing oil which can be dried at high temperature is prepared by adopting styrene-acrylic acid copolymer emulsion, water-based self-crosslinking acrylic acid emulsion and water-based wax emulsion to mix the high-temperature resistant components; meanwhile, the finishing oil has strong wear resistance; and the finishing oil is water-based finishing oil, so that the finishing oil has the characteristic of environmental protection.
Description
Technical Field
The invention relates to the field of printing ink, in particular to high-temperature-resistant anti-adhesion finishing oil.
Background
In the cigarette production and manufacturing process, in order to ensure the appearance effect of cigarette packages or cigarette filters, the finishing oil is used after printing, so that the appearance is more gorgeous, the physical properties of the surface, such as hardness, wear resistance, moisture resistance, glossiness and the like, can be increased, and meanwhile, defects in some printing processes can be compensated, so that some printing defects cannot be obvious.
However, after the finishing oil is sprayed, in order to quickly dry and prevent the surface of the paper from adhering, most processes need to be heated and dried, and most of the finishing oil is mixed by an oily matrix at the present stage, so the heating temperature cannot be too high, the heating temperature can not only cause the coking of the printing surface, but also cause the risk of ignition, and the drying treatment of the finishing oil can be carried out by adopting a low-temperature long-time drying mode, so the drying time is longer, and the production efficiency is influenced to a certain extent. Furthermore, most overprint varnish still needs to have high temperature and anti-blocking properties after being sprayed and used due to the influence of the using environment and conditions.
Disclosure of Invention
The invention aims to provide a high-temperature-resistant anti-adhesion finishing oil, aiming at the defects of the prior art, and the water-based finishing oil which can be dried at high temperature is prepared by adopting components with high-temperature-resistant property for proportioning.
The invention provides high-temperature-resistant anti-adhesion finishing oil which comprises the following components in parts by mass:
60-80 parts of styrene-acrylic acid copolymer emulsion;
5-10 parts of water-based self-crosslinking acrylic emulsion;
8-10 parts of water-based wax emulsion;
6-10 parts of a solvent.
In addition, the styrene-acrylic acid copolymer emulsion has the advantages of strong weather resistance, light resistance, alkali resistance, water resistance, good wet scrubbing resistance, fine appearance, strong adhesive force and good film forming property, and the water resistance, alkali resistance, hardness, dirt resistance and chalking resistance of the coating are greatly improved due to the introduction of the styrene chain segment in the copolymer. In addition, by adding a small amount of functional monomers, selecting different emulsifier types and proportions, particularly carrying out particle design, such as adopting core-shell composition design and polymerization process, the modified starch has certain specific performance, thereby being endowed with certain different special purposes. Particularly, the weather resistance of the paint has the characteristics of strong high temperature resistance and low temperature resistance, and the paint can better overcome the existing defects when being applied to the paint.
The aqueous self-crosslinking acrylic emulsion refers to a one-component aqueous acrylic emulsion capable of crosslinking at room temperature without adding a curing agent.
The hard monomer with high glass transition temperature endows the coating with better high temperature resistance and certain gloss, and simultaneously improves the hardness; the soft monomer with low glass transition temperature endows the film-forming property and flexibility of the coating film; the water-based wax emulsion can improve the anti-adhesion property of the glazing coating, and can also improve the wear resistance and scratch resistance. The water-based self-crosslinking acrylic emulsion has better crosslinking degree, so that the high-temperature resistance of the finishing oil can be improved.
Further, the styrene-acrylic acid copolymer emulsion comprises, by mass, 20-30 parts of a soft styrene-acrylic acid copolymer emulsion and 40-50 parts of a hard styrene-acrylic acid copolymer emulsion. Here, the soft styrene-acrylic copolymer emulsion and the hard styrene-acrylic copolymer emulsion refer to styrene-acrylic copolymer emulsions classified according to the hardness of paint films. The soft styrene-acrylic copolymer emulsion contains soft monomers (i.e., acrylic monomers that do not contain pendant alkyl groups, such as acrylic monomers), and the hard styrene-acrylic copolymer emulsion contains hard monomers (e.g., methacrylic monoesters, vinyl acetate, styrene, and the like).
Further, the aqueous wax emulsion comprises the following components in parts by mass:
150-200 parts of an organic solvent;
10-20 parts of polyethylene wax;
30-40 parts of oxidized polyethylene wax;
1.2-1.8 parts of organic base;
0.2-0.6 part of a catalyst;
18-34 parts of an emulsifier;
50-70 parts of water.
The oxidized polyethylene wax has the special properties of low viscosity, high softening point, good hardness and the like, no toxicity, good thermal stability, low high-temperature volatility, excellent external lubricity, strong internal lubrication effect, coupling effect, good compatibility with polyolefin resin and the like, good humidity resistance at normal temperature, strong chemical resistance and excellent electrical property, can improve the appearance of finished products, is an ideal product for replacing liquid paraffin, microcrystalline paraffin, polyethylene wax and the like, and has wide application. The oxidized polyethylene wax emulsion has the advantages of no layering, no demulsification, no agglomeration, acid resistance, alkali resistance, hard water resistance, strong water solubility, stable emulsion, long shelf life, high solid content, good dispersibility, good scratch resistance, water resistance, adhesion resistance, pollution resistance, wear resistance, softness, surface lubrication and the like after being diluted by water in any proportion.
The cyclohexane is adopted as the organic solvent in the invention, so that the components can be better mutually dissolved, and the stability of the mixture is improved. The organic base adopts ethylenediamine, and the mutual solubility of the components can be further increased by adding a small amount of ethylenediamine, so that the mixture is uniform and stable. The catalyst is biodegradable methanesulfonic acid.
Further, the emulsifier comprises 13-25 parts of a nonionic surfactant and 4-6 parts of an anionic emulsifier by mass.
Further, the nonionic surfactant comprises, by mass, 5-15 parts of lauryl glucoside and 8-10 parts of fatty alcohol-polyoxyethylene ether.
The oxidized polyethylene wax emulsion on the market at present can not meet the requirement of aqueous finishing oil for plain bright silver paper printing. The emulsion prepared by the cationic emulsifier has good hand feeling, but is easy to yellow at high temperature; anionic emulsifiers are easy to emulsify, but have poor stability; in the prior art, fatty alcohol-polyoxyethylene ether series nonionic emulsifiers are mostly adopted, wherein lipophilic groups and hydrophilic groups are connected by ether bonds, so that the stability is not high, and the stability of the emulsion in use is also influenced. Because the compound emulsifier has a synergistic effect, the compound emulsifier is more beneficial to obtaining stable emulsion and obviously improving the emulsification effect than a single emulsifier.
Further, the anionic emulsifier is potassium lauryl phosphate. Has mild, low irritation, excellent emulsifying, solubilizing and dispersing performance, and can be dissolved with nonionic, anionic, amphoteric surfactants and non-strong cationic surfactants.
Further, the solvent comprises 4-6 parts by mass of water and 2-4 parts by mass of ethanol. A small amount of ethanol and water are mixed to serve as a solvent, and the small amount of ethanol has certain volatility, can accelerate the drying speed and does not cause danger.
Furthermore, the adhesive further comprises 0.5-1 part of adhesion promoter, 0.5-1 part of defoaming agent and 1-2 parts of anti-blocking agent according to the mass parts. In the invention, dimethyl silicone oil is used as a defoaming agent.
Further, the adhesion promoter is a cyclic siloxane. The printing ink layer contains Si-O bonds, has strong binding force with various base materials, and has high adhesive force, adhesive force and bonding force, so that the finishing oil layer and the printing layer can be better combined, and excellent storage stability and long-acting property are achieved. Examples of the cyclic siloxane compound include D4 (octamethylcyclotetrasiloxane), vinyl-substituted D4, D3 (hexamethylcyclotrisiloxane), and vinyl-substituted D3.
Further, the anti-blocking agent is stearic acid amide. Has excellent external lubricating effect and demoulding performance. Mainly used as an anti-blocking agent, the anti-blocking agent is usually used together with oleamide erucamide. Compared with the common inorganic anti-blocking agent (silicon dioxide), the anti-blocking agent has the characteristic of not influencing the transparency of the product, is used as a mold release agent and a lubricant to improve the processing agent of the sizing material, and gives the product good gloss.
The high-temperature-resistant anti-adhesion finishing oil is prepared by matching high-temperature-resistant components of styrene-acrylic acid copolymer emulsion, water-based self-crosslinking acrylic acid emulsion and water-based wax emulsion to prepare water-based finishing oil which can be dried at high temperature; meanwhile, the finishing oil has strong wear resistance; and the finishing oil is water-based finishing oil, so that the finishing oil has the characteristic of environmental protection.
Detailed Description
The invention will be further illustrated below with reference to specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, various changes or modifications of the present invention may be made by those skilled in the art, and equivalents may fall within the scope of the claims of the present application. The proportions in the examples of the invention are by weight.
Example 1
Adding 200 parts of cyclohexane, 20 parts of polyethylene wax, 40 parts of oxidized polyethylene wax, 1.8 parts of ethylenediamine and 0.6 part of biodegradable methanesulfonic acid into a flask with a thermometer, a spherical condenser tube and an electric stirrer, adjusting the rotating speed to 500r/min, slowly heating to reflux, refluxing for 30 minutes, recovering cyclohexane under reduced pressure, adding water, distilling under reduced pressure to recover residual cyclohexane and low-boiling-point substances, adding 15 parts of lauryl glucoside, 6 parts of potassium lauryl phosphate and 10 parts of fatty alcohol-polyoxyethylene ether, adding water, cooling to 40 ℃, and obtaining a water-based wax emulsion for later use;
6 parts of water, 4 parts of ethanol, 50 parts of hard styrene-acrylic acid copolymer emulsion, 30 parts of soft styrene-acrylic acid copolymer emulsion, 10 parts of water-based self-crosslinking acrylic acid emulsion, 10 parts of water-based wax emulsion, 1 part of cyclic siloxane, 1 part of simethicone and 2 parts of stearic acid amide are stirred for 90 minutes at the rotating speed of 1000r/min to obtain white semitransparent water-based finishing oil for plain glossy silver paper printing.
Example 2
Adding 150 parts of cyclohexane, 10 parts of polyethylene wax, 30 parts of oxidized polyethylene wax, 1.2 parts of ethylenediamine and 0.2 part of biodegradable methanesulfonic acid into a flask with a thermometer, a spherical condenser tube and an electric stirrer, adjusting the rotating speed to 450r/min, slowly heating to reflux, refluxing for 25 minutes, recovering cyclohexane under reduced pressure, adding water, distilling under reduced pressure to recover residual cyclohexane and low-boiling-point substances, adding 5 parts of lauryl glucoside, 4 parts of potassium lauryl phosphate and 8 parts of fatty alcohol-polyoxyethylene ether, adding water, cooling to 30 ℃, and obtaining a water-based wax emulsion for later use;
4 parts of water, 2 parts of ethanol, 40 parts of hard styrene-acrylic acid copolymer emulsion, 20 parts of soft styrene-acrylic acid copolymer emulsion, 5 parts of water-based self-crosslinking acrylic acid emulsion, 8 parts of water-based wax emulsion, 0.5 part of cyclic siloxane, 0.5 part of dimethyl silicone oil and 1 part of stearic acid amide are stirred for 60 minutes under the condition that the rotating speed is 800-r/min, and then the white semitransparent water-based finishing varnish for plain-surface glossy silver paper printing is obtained.
Example 3
Adding 175 parts of cyclohexane, 15 parts of polyethylene wax, 35 parts of oxidized polyethylene wax, 1.6 parts of ethylenediamine and 0.4 part of biodegradable methanesulfonic acid into a flask with a thermometer, a spherical condenser tube and an electric stirrer, adjusting the rotating speed to 400r/min, slowly heating to reflux, refluxing for 20 minutes, recovering cyclohexane under reduced pressure, adding water, distilling under reduced pressure to recover residual cyclohexane and low-boiling-point substances, adding 10 parts of lauryl glucoside, 5 parts of potassium lauryl phosphate and 9 parts of fatty alcohol-polyoxyethylene ether, adding water, cooling to 30 ℃, and obtaining a water-based wax emulsion for later use;
5 parts of water, 3 parts of ethanol, 45 parts of hard styrene-acrylic acid copolymer emulsion, 25 parts of soft styrene-acrylic acid copolymer emulsion, 7.5 parts of water-based self-crosslinking acrylic acid emulsion, 9 parts of water-based wax emulsion, 0.7 part of cyclic siloxane, 0.7 part of dimethyl silicone oil and 1.5 parts of stearic acid amide are stirred for 80 minutes under the condition that the rotating speed is 1000r/min, and then the white semitransparent water-based finishing oil for plain-surface glossy silver paper printing is obtained.
Comparative example 1
6 parts of water, 4 parts of ethanol, 50 parts of hard styrene-acrylic acid copolymer emulsion, 30 parts of soft styrene-acrylic acid copolymer emulsion, 10 parts of water-based self-crosslinking acrylic acid emulsion, 1 part of cyclic siloxane, 1 part of dimethyl silicone oil and 2 parts of stearic acid amide are stirred for 90 minutes under the condition that the rotating speed is 1000r/min, and the white semitransparent water-based finishing oil for plain-surface bright silver paper printing is obtained.
Comparative example 2
Adding 200 parts of cyclohexane, 20 parts of polyethylene wax, 40 parts of oxidized polyethylene wax, 1.8 parts of ethylenediamine and 0.6 part of biodegradable methanesulfonic acid into a flask with a thermometer, a spherical condenser tube and an electric stirrer, adjusting the rotating speed to 500r/min, slowly heating to reflux, refluxing for 30 minutes, recovering cyclohexane under reduced pressure, adding water, distilling under reduced pressure to recover residual cyclohexane and low-boiling-point substances, adding 15 parts of lauryl glucoside, 6 parts of potassium lauryl phosphate and 10 parts of fatty alcohol-polyoxyethylene ether, adding water, cooling to 40 ℃, and obtaining a water-based wax emulsion for later use;
6 parts of water, 4 parts of ethanol, 10 parts of water-based self-crosslinking acrylic emulsion, 10 parts of water-based wax emulsion, 1 part of cyclic siloxane, 1 part of simethicone and 2 parts of stearic acid amide are stirred for 90 minutes under the condition that the rotating speed is 1000r/min, and then the white semitransparent water-based finishing oil for plain-surface glossy silver paper printing is obtained.
Comparative example 3
Adding 200 parts of cyclohexane, 20 parts of polyethylene wax, 40 parts of oxidized polyethylene wax, 1.8 parts of ethylenediamine and 0.6 part of biodegradable methanesulfonic acid into a flask with a thermometer, a spherical condenser tube and an electric stirrer, adjusting the rotating speed to 500r/min, slowly heating to reflux, refluxing for 30 minutes, recovering cyclohexane under reduced pressure, adding water, distilling under reduced pressure to recover residual cyclohexane and low-boiling-point substances, adding 15 parts of lauryl glucoside, 6 parts of potassium lauryl phosphate and 10 parts of fatty alcohol-polyoxyethylene ether, adding water, cooling to 40 ℃, and obtaining a water-based wax emulsion for later use;
6 parts of water, 4 parts of ethanol, 50 parts of hard styrene-acrylic acid copolymer emulsion, 30 parts of soft styrene-acrylic acid copolymer emulsion, 10 parts of water-based wax emulsion, 1 part of cyclic siloxane, 1 part of dimethyl silicone oil and 2 parts of stearic acid amide are stirred for 90 minutes under the condition that the rotating speed is 1000r/min, and the white semitransparent water-based finishing oil for plain bright silver paper printing is obtained.
Evaluation of：
Temperature resistance detection and friction resistance comparison test are carried out according to a general detection method or national standard, sampling detection is carried out on the products of example 1, example 2, example 3, comparative example 1, comparative example 2, comparative example 3 and the market, each water-based overprint varnish sample is subjected to three parallel tests, and the average value is obtained, and the result is shown in table 1.
As can be seen from the above tables, the detection results of examples 1, 2 and 3 are obviously better than those of comparative examples 1, 2, 3 and the products on the market, which shows that the high temperature resistant anti-adhesion finishing oil formulation provided by the application can achieve stronger high temperature resistant and anti-friction effects.
Meanwhile, in the technical field of thermoplastic sealing of the packaging box, after the surface of the packaging box is sprayed with the finishing oil, the sealing film is subjected to heat shrinkage packaging, and at the moment, the common finishing oil can be melted or blurred by heating due to the relatively high heat shrinkage temperature, and even adhered to the inner surface of the sealing film to influence the product quality.
The embodiments of the present invention have been described above by way of example, but the description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the invention. All equivalent changes and modifications within the scope of the application of the present invention shall fall within the scope of the patent of the present invention.
Claims (3)
1. The high-temperature-resistant anti-adhesion finishing oil is characterized by comprising the following components in parts by weight: the coating comprises the following components in parts by mass:
60-80 parts of styrene-acrylic acid copolymer emulsion;
5-10 parts of water-based self-crosslinking acrylic emulsion;
8-10 parts of water-based wax emulsion;
6-10 parts of a solvent;
the styrene-acrylic acid copolymer emulsion comprises, by mass, 20-30 parts of a soft styrene-acrylic acid copolymer emulsion and 40-50 parts of a hard styrene-acrylic acid copolymer emulsion;
the water-based wax emulsion comprises the following components in parts by mass:
150-200 parts of an organic solvent;
10-20 parts of polyethylene wax;
30-40 parts of oxidized polyethylene wax;
1.2-1.8 parts of organic base;
0.2-0.6 part of a catalyst;
18-34 parts of an emulsifier;
50-70 parts of water;
the adhesive further comprises 0.5-1 part of adhesion promoter, 0.5-1 part of defoaming agent and 1-2 parts of anti-adhesion agent according to the mass parts; the anti-blocking agent is stearic acid amide;
the emulsifier comprises 13-25 parts of nonionic surfactant and 4-6 parts of anionic emulsifier by mass; the nonionic surfactant comprises, by mass, 5-15 parts of lauryl glucoside and 8-10 parts of fatty alcohol-polyoxyethylene ether, and the anionic emulsifier is potassium lauryl phosphate.
2. The high-temperature-resistant anti-adhesion finishing oil as claimed in claim 1, wherein: the solvent comprises 4-6 parts of water and 2-4 parts of ethanol by mass.
3. The high-temperature-resistant anti-adhesion finishing oil as claimed in claim 1, wherein: the adhesion promoter is a cyclic siloxane.
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| CN110205868B (en) * | 2019-07-22 | 2021-09-28 | 玉溪接装纸制造有限公司 | Anti-drop and anti-adhesion gloss oil for aluminized tipping paper and preparation method thereof |
| CN111534182A (en) * | 2020-05-09 | 2020-08-14 | 洋紫荆油墨（浙江）有限公司 | Water-based varnish and preparation method thereof |
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| CN101168637A (en) * | 2006-10-23 | 2008-04-30 | 吴达文 | Water highlight high conglutination-resistance printing gloss oil and its preparation method and application |
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