CN116554807A - Water-based glass bottle label adhesive suitable for north and preparation method thereof - Google Patents
Water-based glass bottle label adhesive suitable for north and preparation method thereof Download PDFInfo
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- CN116554807A CN116554807A CN202310178858.6A CN202310178858A CN116554807A CN 116554807 A CN116554807 A CN 116554807A CN 202310178858 A CN202310178858 A CN 202310178858A CN 116554807 A CN116554807 A CN 116554807A
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- parts
- water
- adhesive
- polyvinyl alcohol
- north
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 72
- 239000000853 adhesive Substances 0.000 title claims abstract description 65
- 230000001070 adhesive effect Effects 0.000 title claims abstract description 65
- 239000011521 glass Substances 0.000 title claims abstract description 29
- 238000002360 preparation method Methods 0.000 title abstract description 9
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims abstract description 41
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 38
- 239000004372 Polyvinyl alcohol Substances 0.000 claims abstract description 31
- 229920002451 polyvinyl alcohol Polymers 0.000 claims abstract description 31
- 239000005018 casein Substances 0.000 claims abstract description 27
- BECPQYXYKAMYBN-UHFFFAOYSA-N casein, tech. Chemical compound NCCCCC(C(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(CC(C)C)N=C(O)C(CCC(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(C(C)O)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(COP(O)(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(N)CC1=CC=CC=C1 BECPQYXYKAMYBN-UHFFFAOYSA-N 0.000 claims abstract description 27
- 235000021240 caseins Nutrition 0.000 claims abstract description 27
- 239000000839 emulsion Substances 0.000 claims abstract description 19
- XYRAEZLPSATLHH-UHFFFAOYSA-N trisodium methoxy(trioxido)silane Chemical compound [Na+].[Na+].[Na+].CO[Si]([O-])([O-])[O-] XYRAEZLPSATLHH-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000011787 zinc oxide Substances 0.000 claims abstract description 19
- HDERJYVLTPVNRI-UHFFFAOYSA-N ethene;ethenyl acetate Chemical group C=C.CC(=O)OC=C HDERJYVLTPVNRI-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229920001038 ethylene copolymer Polymers 0.000 claims abstract description 18
- 235000011187 glycerol Nutrition 0.000 claims abstract description 16
- WRAGBEWQGHCDDU-UHFFFAOYSA-M C([O-])([O-])=O.[NH4+].[Zr+] Chemical compound C([O-])([O-])=O.[NH4+].[Zr+] WRAGBEWQGHCDDU-UHFFFAOYSA-M 0.000 claims abstract description 15
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims abstract description 14
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract description 14
- 235000011114 ammonium hydroxide Nutrition 0.000 claims abstract description 14
- 239000004202 carbamide Substances 0.000 claims abstract description 14
- 229920000036 polyvinylpyrrolidone Polymers 0.000 claims abstract description 14
- 239000001267 polyvinylpyrrolidone Substances 0.000 claims abstract description 14
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 claims abstract description 14
- 239000003755 preservative agent Substances 0.000 claims abstract description 12
- 230000002335 preservative effect Effects 0.000 claims abstract description 12
- 239000013530 defoamer Substances 0.000 claims abstract description 10
- 238000006243 chemical reaction Methods 0.000 claims description 16
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 15
- 238000003756 stirring Methods 0.000 claims description 13
- 239000002518 antifoaming agent Substances 0.000 claims description 10
- 239000000243 solution Substances 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 4
- 238000006136 alcoholysis reaction Methods 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 239000002480 mineral oil Substances 0.000 claims description 3
- 235000010446 mineral oil Nutrition 0.000 claims description 3
- 238000006116 polymerization reaction Methods 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 230000001502 supplementing effect Effects 0.000 claims description 3
- 239000007864 aqueous solution Substances 0.000 claims description 2
- 229960001617 ethyl hydroxybenzoate Drugs 0.000 claims description 2
- 235000010228 ethyl p-hydroxybenzoate Nutrition 0.000 claims description 2
- 239000004403 ethyl p-hydroxybenzoate Substances 0.000 claims description 2
- NUVBSKCKDOMJSU-UHFFFAOYSA-N ethylparaben Chemical compound CCOC(=O)C1=CC=C(O)C=C1 NUVBSKCKDOMJSU-UHFFFAOYSA-N 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- LXCFILQKKLGQFO-UHFFFAOYSA-N methylparaben Chemical compound COC(=O)C1=CC=C(O)C=C1 LXCFILQKKLGQFO-UHFFFAOYSA-N 0.000 claims 2
- 241000531897 Loma Species 0.000 claims 1
- 235000010270 methyl p-hydroxybenzoate Nutrition 0.000 claims 1
- 239000004292 methyl p-hydroxybenzoate Substances 0.000 claims 1
- 229960002216 methylparaben Drugs 0.000 claims 1
- 238000002372 labelling Methods 0.000 abstract description 17
- 238000004140 cleaning Methods 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 239000000084 colloidal system Substances 0.000 abstract description 7
- 239000002994 raw material Substances 0.000 abstract description 3
- 239000007798 antifreeze agent Substances 0.000 abstract description 2
- 238000004132 cross linking Methods 0.000 abstract description 2
- 150000001875 compounds Chemical class 0.000 abstract 3
- 239000003795 chemical substances by application Substances 0.000 abstract 2
- 239000012752 auxiliary agent Substances 0.000 abstract 1
- 230000003020 moisturizing effect Effects 0.000 abstract 1
- 239000002904 solvent Substances 0.000 abstract 1
- 239000002131 composite material Substances 0.000 description 16
- 230000008859 change Effects 0.000 description 7
- 238000001035 drying Methods 0.000 description 6
- 239000002002 slurry Substances 0.000 description 6
- 230000007547 defect Effects 0.000 description 3
- 238000007710 freezing Methods 0.000 description 3
- 230000008014 freezing Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 229920000058 polyacrylate Polymers 0.000 description 3
- 230000002195 synergetic effect Effects 0.000 description 3
- 229920002472 Starch Polymers 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 235000013405 beer Nutrition 0.000 description 2
- 235000013361 beverage Nutrition 0.000 description 2
- 238000004925 denaturation Methods 0.000 description 2
- 230000036425 denaturation Effects 0.000 description 2
- 238000010828 elution Methods 0.000 description 2
- MTZQAGJQAFMTAQ-UHFFFAOYSA-N ethyl benzoate Chemical compound CCOC(=O)C1=CC=CC=C1 MTZQAGJQAFMTAQ-UHFFFAOYSA-N 0.000 description 2
- 239000005457 ice water Substances 0.000 description 2
- QPJVMBTYPHYUOC-UHFFFAOYSA-N methyl benzoate Chemical compound COC(=O)C1=CC=CC=C1 QPJVMBTYPHYUOC-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 235000019698 starch Nutrition 0.000 description 2
- 239000008107 starch Substances 0.000 description 2
- QQGISFDJEJMKIL-JAIQZWGSSA-N (5z)-5-[[3-(hydroxymethyl)thiophen-2-yl]methylidene]-10-methoxy-2,2,4-trimethyl-1h-chromeno[3,4-f]quinolin-9-ol Chemical group C1=CC=2NC(C)(C)C=C(C)C=2C2=C1C=1C(OC)=C(O)C=CC=1O\C2=C/C=1SC=CC=1CO QQGISFDJEJMKIL-JAIQZWGSSA-N 0.000 description 1
- CAQWNKXTMBFBGI-UHFFFAOYSA-N C.[Na] Chemical compound C.[Na] CAQWNKXTMBFBGI-UHFFFAOYSA-N 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- 239000002313 adhesive film Substances 0.000 description 1
- 230000002528 anti-freeze Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000013877 carbamide Nutrition 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229940095102 methyl benzoate Drugs 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- JPMIIZHYYWMHDT-UHFFFAOYSA-N octhilinone Chemical compound CCCCCCCCN1SC=CC1=O JPMIIZHYYWMHDT-UHFFFAOYSA-N 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 235000013324 preserved food Nutrition 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 235000014692 zinc oxide Nutrition 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J131/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an acyloxy radical of a saturated carboxylic acid, of carbonic acid, or of a haloformic acid; Adhesives based on derivatives of such polymers
- C09J131/02—Homopolymers or copolymers of esters of monocarboxylic acids
- C09J131/04—Homopolymers or copolymers of vinyl acetate
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J189/00—Adhesives based on proteins; Adhesives based on derivatives thereof
- C09J189/005—Casein
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention discloses a water-based glass bottle label adhesive suitable for the north and a preparation method thereof, belonging to the technical field of adhesives. The adhesive is prepared from the following raw materials in parts by weight: 45-65 parts of water, 8-15 parts of casein, 6-8 parts of polyvinyl alcohol, 5-10 parts of vinyl acetate-ethylene copolymer emulsion, 5-8 parts of urea, 0.5-1.5 parts of glycerin, 1-2 parts of polyvinylpyrrolidone, 2-3 parts of ammonium zirconium carbonate, 0.4-0.6 part of zinc oxide, 2-5 parts of sodium methyl silicate, 0.6-0.8 part of ammonia water, 0.2-0.3 part of defoamer and 0.2-0.3 part of preservative. The invention uses casein, polyvinyl alcohol and vinyl acetate-ethylene copolymer emulsion as compound colloid agent, urea and glycerol as compound antifreeze agent, polyvinylpyrrolidone as moisturizing solubilizer, ammonium zirconium carbonate, nano zinc oxide and sodium methyl silicate as compound crosslinking water-proof agent, and defoamer and preservative as auxiliary agents to prepare the water-based glass bottle label adhesive suitable for northern. The adhesive prepared by the invention has the advantages of moderate viscosity, high stability, high bonding strength, small consumption of ton wine, no label falling during pasting under the conditions of cold weather and dry weather in winter in the north, smooth pasting, good water resistance, difficult mildew, easy cleaning and the like. Can meet the requirement of a high-speed automatic labeling production line of the water-based glass bottle labels in the north in winter.
Description
Technical Field
The invention relates to the technical field of adhesives, in particular to a water-based glass bottle label adhesive suitable for the north and a preparation method thereof.
Background
The label adhesive is an important link of the appearance image in the product package, is widely applied to industries such as beverage, beer, white spirit, canned food, medicine, pesticide, chemical reagent and the like, has different requirements on the adhesive under different packaging materials, different environmental conditions, different production speeds and other conditions, and particularly in the beer and beverage production industries, firstly, has certain viscosity, good flowability, strong initial viscosity and short curing and drying time; secondly, the label has certain mildew resistance and water resistance, does not go moldy in a humid environment, and does not drop when placed in ice water or a refrigerator; and meanwhile, the labels of the recycling bottles are required to be easily separated under certain conditions.
Currently, aqueous, pressureless adhesives still account for the largest share, mainly due to the extensive use of wet glue labeling on high speed can and bottle filling lines. The wet adhesive labels are generally paper labels, and the adhesive used is starch adhesive, polyvinyl alcohol composite modified adhesive, polyacrylate composite modified adhesive and casein composite adhesive. The adhesives have the advantages and disadvantages, such as low cost, large viscosity change along with temperature, inapplicability to automatic labeling, low bonding strength, easy mildew, poor stability, poor water resistance, inapplicability to ice chest storage and the like; the polyvinyl alcohol composite modified adhesive and the polyacrylate composite modified adhesive have the common advantages of small viscosity change along with temperature, suitability for low-speed automatic labeling, low initial adhesion, easy label dropping during high-speed labeling, poor water resistance of labels and difficult cleaning during glass bottle recovery; the casein composite adhesive has many advantages, such as good initial adhesion, good ductility, good water resistance, etc., and is suitable for high-speed labeling machine application, but has the defects of high cost, large viscosity change along with temperature, special heat preservation warehouse for applying the casein composite adhesive in many manufacturers in north, and large input cost, and is not suitable for general enterprises.
The northern climate is characterized by cold and dry winter and high temperature and raininess in summer. The adhesives such as starch adhesives have low viscosity in summer and become semisolid in winter, are not suitable for automatic labeling, are easy to mildew, have poor stability and poor water resistance, are not suitable for being stored in a refrigerator and the like; although the viscosity of the polyvinyl alcohol composite modified adhesive and the polyacrylate composite modified adhesive is small along with the temperature change, the initial adhesion is low, the label is easy to drop, the adhesive is only suitable for the requirement of low-speed automatic labeling, the label has poor water resistance, and the glass bottle is difficult to clean during recycling; the casein composite adhesive has high cost, the viscosity of the casein composite adhesive changes greatly along with the temperature, and a special thermal insulation warehouse is needed for applying the casein composite adhesive to a plurality of manufacturers in the north, so that the casein composite adhesive has high input cost and is not suitable for common enterprises. The existing label adhesive has the main defects of large viscosity change along with temperature, drying in winter, high drying speed during labeling, easy label dropping, high cost, poor initial adhesion, poor mildew resistance, water resistance, difficult cleaning and the like for the northern climatic characteristics.
Disclosure of Invention
The invention aims to provide a water-based glass bottle label adhesive suitable for the north, which overcomes the defects of large viscosity change along with temperature, drying in winter, high drying speed, easy label dropping, high cost, poor initial adhesion, poor mildew resistance, water resistance, difficult cleaning and the like of the existing adhesive under the characteristic of the climate of the north. The glass bottle label adhesive has the advantages of moderate viscosity, high stability, high bonding strength, small consumption of ton wine, no label falling during pasting under the conditions of cold weather and dry weather in winter in the north, flatness, good water resistance, difficult mildew, easy cleaning and the like. Can meet the requirement of a high-speed automatic labeling production line of the water-based glass bottle labels in the north in winter.
Meanwhile, the invention also provides a preparation method of the water-based glass label adhesive suitable for the north.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the water-based glass bottle label adhesive is characterized by being prepared from the following components in parts by weight: 45-65 parts of water, 8-15 parts of casein, 6-8 parts of polyvinyl alcohol, 5-10 parts of vinyl acetate-ethylene copolymer emulsion, 5-8 parts of urea, 0.5-1.5 parts of glycerin, 1-2 parts of polyvinylpyrrolidone, 2-3 parts of ammonium zirconium carbonate, 0.4-0.6 part of zinc oxide, 2-5 parts of sodium methyl silicate, 0.6-0.8 part of ammonia water, 0.2-0.3 part of defoamer and 0.2-0.3 part of preservative.
Wherein, preferably, the polymerization degree of the polyvinyl alcohol is 500, and the alcoholysis degree is 86% -90%.
Preferably, the vinyl acetate-ethylene copolymer emulsion is Celvolite 149, the solid content is 55.5+ -1, the viscosity (Brookfield RVT,4#/20rpm/25 ℃) is 3800+ -600 mPa.s, and the content in the formula is a folded part.
Wherein, preferably, the zinc oxide is nano-grade high-activity zinc oxide of the Luoyang blue sky chemical plant.
Wherein, preferably, the defoaming agent is an organosilicon defoaming agent or a mineral oil defoaming agent.
Wherein, preferably, the sodium methyl silicate is 30% sodium hydroxide aqueous solution.
Wherein, preferably, the preservative is one of kathon, methyl benzoate and ethyl benzoate.
The invention discloses a preparation method of a water-based glass bottle label adhesive suitable for the north, which comprises the following steps:
a. adding about 30% of water into a reaction kettle I, then adding a specified amount of polyvinyl alcohol, uniformly stirring, heating to 80-90 ℃, and preserving heat for 1 hour for later use;
b. adding about 40% of water and urea into a reaction kettle II, heating and stirring, adding a specified amount of ammonia water (about 5% of the rest), zinc oxide and casein at 80 ℃, and preserving heat for 1.5 hours at 80-83 ℃;
c. sequentially adding a polyvinyl alcohol solution, polyvinylpyrrolidone, glycerol, ammonium zirconium carbonate (diluted with 10% water) and sodium methyl silicate (diluted with 5% water) in the reaction kettle I into the reaction kettle II, and continuously stirring at 55-60 ℃ for 2 hours;
d. adding vinyl acetate-ethylene copolymer emulsion, defoaming agent and stirring for 30 min;
e. the pH value is adjusted to 7+/-0.5 by adding the residual ammonia water;
f. and (5) adjusting viscosity by supplementing residual water according to the use requirement, and filtering and discharging after the test is qualified.
According to the water-based glass label adhesive suitable for the north, the polyvinyl alcohol is fully dissolved, so that the stability of the polyvinyl alcohol is improved; reacting casein, ammonia water, zinc oxide and urea in a reaction kettle II to ensure that the reaction is more complete, and the zinc oxide thoroughly cross-links the casein; sequentially adding polyvinyl alcohol solution, polyvinylpyrrolidone, glycerol, ammonium zirconium carbonate (diluted by 10% water) and sodium methyl silicate (diluted by 5% water) in the reaction kettle I into the reaction kettle II, and improving the colloid stability, the water resistance, the glycerol and the colloid ductility and the water absorbability of the colloid by using the dissolved polyvinyl alcohol and polyvinylpyrrolidone and the ammonium zirconium carbonate and the sodium methyl silicate; the vinyl acetate-ethylene copolymer emulsion, casein and polyvinyl alcohol are added to generate a synergistic effect, so that the cohesive force is improved, the high-speed labeling of a labeling machine is realized, and foam is not generated when the labeling machine is operated at a high speed by adding a defoaming agent; and preservative is added to make the label not easy to mildew. Can meet the requirements of a high-speed automatic labeling production line.
The invention dissolves and reacts casein well, can improve ductility and water resistance of the adhesive, the polyvinyl alcohol can improve film forming property and cohesion of the adhesive, and the vinyl acetate-ethylene copolymer emulsion can improve solid content of the adhesive and affinity of glass paper, thereby improving cohesive force and drying speed of the adhesive. The dissolved and reacted casein and polyvinyl alcohol are subjected to crosslinking modification, and the dissolved and reacted casein and polyvinyl alcohol and the ethylene-vinyl acetate copolymer emulsion are subjected to modification, so that the three are subjected to synergistic effect, and the prepared adhesive has the advantages of moderate viscosity, high stability, good water solubility, smooth adhesion, small consumption, good water resistance, difficult mildew, easy cleaning and the like. Can meet the requirements of a high-speed automatic labeling production line.
The preparation method of the invention specifically limits the feeding sequence, the feeding mode, the stirring time and the like of the raw materials, such as limiting the dilution of ammonium zirconium carbonate and sodium methyl silicate with water and the like, can fully promote the uniform mixing of the raw materials and further improve the stability of the product performance. The preparation method of the adhesive is simple and convenient to operate, easy to control, suitable for industrial popularization and application, and convenient to use.
Compared with the prior art, the technical scheme provided by the invention has the following beneficial effects:
the invention adopts vinyl acetate-ethylene copolymer emulsion, casein and polyvinyl alcohol as composite colloid to generate synergistic action, improves cohesive force, improves the influence of temperature on colloid viscosity, and is suitable for the influence of northern air temperature change on adhesives;
the urea and glycerol composite antifreeze agent is adopted, so that the antifreeze property of the adhesive in winter in the north is improved; meanwhile, the glycerol also has moisture retention, and is cooperated with polyvinylpyrrolidone, so that the adhesive film is not dried too fast in winter in the north, and the labeling quality is improved;
according to the invention, methyl sodium silicate is added, and the glass also belongs to silicate, so that the water resistance, stability and initial adhesion of the adhesive are improved;
the isoelectric point of the casein is 4.7, the casein is easy to dissolve under alkaline conditions, the polyvinyl alcohol and the vinyl acetate-ethylene copolymer emulsion can be dissolved in water at high temperature, the cleaning is generally carried out under high temperature and strong alkali, for example, the cleaning temperature of glass bottles in a brewery is generally 85 ℃, and the concentration of alkali liquor is 2-3 percent;
in the preparation method of the invention, ammonium zirconium carbonate (diluted by 10% of water) and sodium methyl silicate (diluted by 5% of water) avoid forming gum lumps in the production process and influence the quality and application effect of the gum.
The invention provides a water-based glass label adhesive suitable for the north, which has the following technical indexes through detection:
| detecting items | Standard of | Actual measurement |
| Appearance of | Homogeneous pale yellow slurry | Homogeneous pale yellow slurry |
| Viscosity (25 ℃ C.), mPas | 50000-80000 | 61000 |
| Solid content (105 ℃ C.), m/m | 35-45 | 38 |
| Temperature denaturation, mPa.s/. Degree.C.is less than or equal to | 1000 | 800 |
| pH | 6.5-7.5 | 7.0 |
| Freezing resistance, and the temperature is less than or equal to | 0 | -15 |
| The bonding speed (25 ℃) and S is less than or equal to | 20 | 10 |
| Consumption of ton wine Kg | 0.5 | 0.4 |
| Water resistance (ice-water mixture), h is more than or equal to | 168 | 180 |
| Elution (85 ℃) and 2 percent NaOH solution, and S is less than or equal to | 80 | 45 |
| The shelf life is more than or equal to month | 12 | 18 |
Description of the embodiments
The technical solutions of the present invention will be clearly and completely described in conjunction with specific embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The polyvinyl alcohol selected in the following examples has a polymerization degree of 500 and an alcoholysis degree of 86 to 90%.
The vinyl acetate-ethylene copolymer emulsion used in the examples described below was Celvolite 149, and had a solids content of 55.5.+ -.1 and a viscosity (Brookfield RVT,4#/20rpm/25 ℃) of 3800.+ -.600 mPa.s.
The zinc oxide selected in the following examples is a nanoscale high-activity zinc oxide of the Luoyang blue sky chemical plant.
The sodium methyl silicate used in the examples below was 30% aqueous sodium hydroxide.
The defoamer selected in the following examples was mineral oil defoamer.
The preservative selected in the following examples is ethylparaben.
Example 1
The water-based glass bottle label adhesive suitable for the north is prepared from the following components in parts by weight: 62.1 parts of water, 9 parts of casein, 6 parts of polyvinyl alcohol, 9 parts of vinyl acetate-ethylene copolymer emulsion, 5.5 parts of urea, 0.9 part of glycerin, 1 part of polyvinylpyrrolidone, 2 parts of ammonium zirconium carbonate, 0.5 part of zinc oxide, 3 parts of sodium methyl silicate, 0.6 part of ammonia water, 0.2 part of defoamer and 0.2 part of preservative.
Examples
The water-based glass label adhesive suitable for the north is prepared from the following components in parts by weight: 59.2 parts of water, 10 parts of casein, 6.5 parts of polyvinyl alcohol, 8 parts of vinyl acetate-ethylene copolymer emulsion, 7 parts of urea, 1.2 parts of glycerin, 1 part of polyvinylpyrrolidone, 2 parts of ammonium zirconium carbonate, 0.5 part of zinc oxide, 3.5 parts of sodium methyl silicate, 0.7 part of ammonia water, 0.2 part of defoamer and 0.2 part of preservative.
The water-based glass label adhesive suitable for the north is prepared from the following components in parts by weight: 57.3 parts of water, 11 parts of casein, 7 parts of polyvinyl alcohol, 7 parts of vinyl acetate-ethylene copolymer emulsion, 7.5 parts of urea, 1.5 parts of glycerin, 1 part of polyvinylpyrrolidone, 2 parts of ammonium zirconium carbonate, 0.5 part of zinc oxide, 4 parts of sodium methyl silicate, 0.8 part of ammonia water, 0.2 part of defoamer and 0.2 part of preservative.
Example IV
The water-based glass label adhesive suitable for the north is prepared from the following components in parts by weight: 55 parts of water, 12 parts of casein, 8 parts of polyvinyl alcohol, 6 parts of vinyl acetate-ethylene copolymer emulsion, 8 parts of urea, 1.8 parts of glycerin, 1 part of polyvinylpyrrolidone, 2 parts of ammonium zirconium carbonate, 0.5 part of zinc oxide, 4.5 parts of sodium methyl silicate, 0.8 part of ammonia water, 0.2 part of defoamer and 0.2 part of preservative.
For the first to fourth embodiments of the present invention, a method for preparing a water-based glass bottle label adhesive suitable for north, comprising the steps of:
a. adding about 30% of water into a reaction kettle I, then adding a specified amount of polyvinyl alcohol, uniformly stirring, heating to 80-90 ℃, and preserving heat for 1 hour for later use;
b. adding about 40% of water and urea into a reaction kettle II, heating and stirring, adding a specified amount of ammonia water (about 5% of the rest), zinc oxide and casein at 80 ℃, and preserving heat for 1.5 hours at 80-83 ℃;
c. sequentially adding a polyvinyl alcohol solution, polyvinylpyrrolidone, glycerol, ammonium zirconium carbonate (diluted with 10% water) and sodium methyl silicate (diluted with 5% water) in the reaction kettle I into the reaction kettle II, and continuously stirring at 55-60 ℃ for 2 hours;
d. adding vinyl acetate-ethylene copolymer emulsion, defoaming agent and stirring for 30 min;
e. the pH value is adjusted to 7+/-0.5 by adding the residual ammonia water;
f. and (5) adjusting viscosity by supplementing residual water according to the use requirement, and filtering and discharging after the test is qualified.
Each performance of the first to fourth embodiments is detected, and the physicochemical indexes are shown in the following table:
| detecting items | Example 1 | Example two | Example III | Example IV |
| Appearance of | Homogeneous pale yellow slurry | Homogeneous pale yellow slurry | Homogeneous pale yellow slurry | Homogeneous pale yellow slurry |
| Viscosity (25 ℃ C.), mPas | 58000 | 61000 | 63000 | 68000 |
| Solid content (105 ℃ C.), m/m | 35.15 | 37.94 | 39.71 | 41.85 |
| Temperature denaturation, mPa.s/. Degree.C | 800 | 750 | 730 | 720 |
| pH | 6.9 | 7.0 | 7.0 | 7.1 |
| Freezing resistance at DEG C | -15 | -15.6 | -15.8 | -16 |
| Bonding speed (25 ℃ C.), S | 15 | 13 | 12 | 10 |
| Consumption of ton wine Kg | 0.4 | 0.38 | 0.38 | 0.38 |
| Water resistance (icy water mixture), h | 170 | 180 | 190 | 220 |
| Elution (85 ℃ C.), 2% NaOH solution S | 26 | 27 | 35 | 42 |
| Shelf life month | 15 | 16 | 18 | 18 |
From the above data, it can be seen that: the stability of the water-based glass label adhesive suitable for the north of the invention is increased along with the increase of the content of the polyvinyl alcohol in the composite colloid; the water resistance increases with increasing sodium methyl silicate; the freezing resistance increases with increasing overall glycerol and urea content. Through tests, the water-based glass adhesive prepared by the embodiment has the advantages of moderate viscosity, high stability, high bonding strength, small consumption per ton of wine, no label falling during pasting in winter in the north, good water resistance, difficult mildew, easy cleaning and the like. Can meet the requirement of a high-speed automatic labeling production line of the water-based glass bottle labels in the north in winter.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to apply equivalents and modifications according to the technical scheme and the inventive concept thereof within the scope of the present invention.
Claims (8)
1. The water-based glass bottle label adhesive is characterized by being prepared from the following components in parts by weight: 45-65 parts of water, 8-15 parts of casein, 6-8 parts of polyvinyl alcohol, 5-10 parts of vinyl acetate-ethylene copolymer emulsion, 5-8 parts of urea, 0.5-1.5 parts of glycerin, 1-2 parts of polyvinylpyrrolidone, 2-3 parts of ammonium zirconium carbonate, 0.4-0.6 part of zinc oxide, 2-5 parts of sodium methyl silicate, 0.6-0.8 part of ammonia water, 0.2-0.3 part of defoamer and 0.2-0.3 part of preservative.
2. The adhesive of claim 1, wherein the polyvinyl alcohol has a degree of polymerization of 500 and an alcoholysis of 86% to 90%.
3. The adhesive of claim 1 wherein the vinyl acetate-ethylene copolymer emulsion is celvolite 149, has a solids content of 55.5±1, and has a viscosity (Brookfield RVT,4#/20rpm/25 ℃) of 3800±600 mPa-s.
4. The adhesive of claim 1, wherein the zinc oxide is a nanoscale high-activity zinc oxide of the loma blue sky chemical plant.
5. The adhesive of claim 1, wherein: the defoaming agent is an organosilicon defoaming agent or a mineral oil defoaming agent.
6. The adhesive of claim 1, wherein: the sodium methyl silicate is 30% sodium hydroxide aqueous solution.
7. The adhesive of claim 1, wherein: the preservative is one of carbopine, methyl paraben and ethyl paraben.
8. A method of preparing a water-based glass bottle label adhesive for use in the north of any one of claims 1-6, comprising the steps of:
a. adding about 30% of water into a reaction kettle I, then adding a specified amount of polyvinyl alcohol, uniformly stirring, heating to 80-90 ℃, and preserving heat for 1 hour for later use;
b. adding about 40% of water and urea into a reaction kettle II, heating and stirring, adding a specified amount of ammonia water (about 5% of the rest), zinc oxide and casein at 80 ℃, and preserving heat for 1.5 hours at 80-83 ℃;
c. sequentially adding a polyvinyl alcohol solution, polyvinylpyrrolidone, glycerol, ammonium zirconium carbonate (diluted with 10% water) and sodium methyl silicate (diluted with 5% water) in the reaction kettle I into the reaction kettle II, and continuously stirring at 55-60 ℃ for 2 hours;
d. adding vinyl acetate-ethylene copolymer emulsion, defoaming agent and stirring for 30 min;
e. the pH value is adjusted to 7+/-0.5 by adding the residual ammonia water;
f. and (5) adjusting viscosity by supplementing residual water according to the use requirement, and filtering and discharging after the test is qualified.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310178858.6A CN116554807A (en) | 2023-02-28 | 2023-02-28 | Water-based glass bottle label adhesive suitable for north and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310178858.6A CN116554807A (en) | 2023-02-28 | 2023-02-28 | Water-based glass bottle label adhesive suitable for north and preparation method thereof |
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| Publication Number | Publication Date |
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| CN116554807A true CN116554807A (en) | 2023-08-08 |
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|---|---|---|---|
| CN202310178858.6A Pending CN116554807A (en) | 2023-02-28 | 2023-02-28 | Water-based glass bottle label adhesive suitable for north and preparation method thereof |
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| Country | Link |
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| CN (1) | CN116554807A (en) |
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- 2023-02-28 CN CN202310178858.6A patent/CN116554807A/en active Pending
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