CN108192535B - Plastic bottle environment-friendly label adhesive for automatic labeling machine and preparation method thereof - Google Patents
Plastic bottle environment-friendly label adhesive for automatic labeling machine and preparation method thereof Download PDFInfo
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- CN108192535B CN108192535B CN201711416004.8A CN201711416004A CN108192535B CN 108192535 B CN108192535 B CN 108192535B CN 201711416004 A CN201711416004 A CN 201711416004A CN 108192535 B CN108192535 B CN 108192535B
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- automatic labeling
- label adhesive
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- deionized water
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- 238000002372 labelling Methods 0.000 title claims abstract description 40
- 239000000853 adhesive Substances 0.000 title claims abstract description 34
- 230000001070 adhesive effect Effects 0.000 title claims abstract description 34
- 229920003023 plastic Polymers 0.000 title claims abstract description 32
- 239000004033 plastic Substances 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 31
- 239000008367 deionised water Substances 0.000 claims abstract description 24
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 24
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 claims abstract description 10
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 claims abstract description 10
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 claims abstract description 10
- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 claims abstract description 9
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims abstract description 9
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims abstract description 9
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 claims abstract description 9
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 7
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 7
- 239000003995 emulsifying agent Substances 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims abstract description 7
- 239000003755 preservative agent Substances 0.000 claims abstract description 7
- 230000002335 preservative effect Effects 0.000 claims abstract description 7
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims abstract description 3
- 235000011114 ammonium hydroxide Nutrition 0.000 claims abstract description 3
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 claims description 40
- 238000003756 stirring Methods 0.000 claims description 30
- 229910001870 ammonium persulfate Inorganic materials 0.000 claims description 20
- 239000012295 chemical reaction liquid Substances 0.000 claims description 18
- 235000013405 beer Nutrition 0.000 claims description 17
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 12
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 11
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 11
- 238000001816 cooling Methods 0.000 claims description 10
- 238000007599 discharging Methods 0.000 claims description 7
- 239000013530 defoamer Substances 0.000 claims description 6
- 229960001617 ethyl hydroxybenzoate Drugs 0.000 claims description 6
- 235000010228 ethyl p-hydroxybenzoate Nutrition 0.000 claims description 6
- 239000004403 ethyl p-hydroxybenzoate Substances 0.000 claims description 6
- NUVBSKCKDOMJSU-UHFFFAOYSA-N ethylparaben Chemical compound CCOC(=O)C1=CC=C(O)C=C1 NUVBSKCKDOMJSU-UHFFFAOYSA-N 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 239000002480 mineral oil Substances 0.000 claims description 6
- 235000010446 mineral oil Nutrition 0.000 claims description 6
- 239000002002 slurry Substances 0.000 claims description 6
- 239000011787 zinc oxide Substances 0.000 claims description 6
- LXCFILQKKLGQFO-UHFFFAOYSA-N methylparaben Chemical compound COC(=O)C1=CC=C(O)C=C1 LXCFILQKKLGQFO-UHFFFAOYSA-N 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 229910021538 borax Inorganic materials 0.000 claims description 2
- 235000010270 methyl p-hydroxybenzoate Nutrition 0.000 claims description 2
- 239000004292 methyl p-hydroxybenzoate Substances 0.000 claims description 2
- 229960002216 methylparaben Drugs 0.000 claims description 2
- 239000004328 sodium tetraborate Substances 0.000 claims description 2
- 235000010339 sodium tetraborate Nutrition 0.000 claims description 2
- 239000002861 polymer material Substances 0.000 abstract description 2
- 239000011521 glass Substances 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 7
- 239000003292 glue Substances 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 239000004832 casein glue Substances 0.000 description 2
- 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 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- 102000009027 Albumins Human genes 0.000 description 1
- 108010088751 Albumins Proteins 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000005018 casein Substances 0.000 description 1
- 235000021240 caseins Nutrition 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 235000019422 polyvinyl alcohol Nutrition 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 229920002554 vinyl polymer Polymers 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
- C09J133/00—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 only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
- C09J133/04—Homopolymers or copolymers of esters
- C09J133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C09J133/062—Copolymers with monomers not covered by C09J133/06
- C09J133/064—Copolymers with monomers not covered by C09J133/06 containing anhydride, COOH or COOM groups, with M being metal or onium-cation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2/00—Processes of polymerisation
- C08F2/12—Polymerisation in non-solvents
- C08F2/16—Aqueous medium
- C08F2/22—Emulsion polymerisation
- C08F2/24—Emulsion polymerisation with the aid of emulsifying agents
- C08F2/30—Emulsion polymerisation with the aid of emulsifying agents non-ionic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
- C08F220/16—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
- C08F220/18—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
-
- 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
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
- C08F220/16—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
- C08F220/18—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
- C08F220/1804—C4-(meth)acrylate, e.g. butyl (meth)acrylate, isobutyl (meth)acrylate or tert-butyl (meth)acrylate
-
- 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
Abstract
The invention provides an adhesive for sticking paper labels to plastic bottles by an automatic labeling machine and a preparation method thereof, which relate to the field of high polymer material adhesives and are prepared by reacting deionized water, an emulsifier, rosin, butyl acrylate, ethyl acrylate, methacrylic acid, methyl methacrylate, a cross-linking agent, a defoaming agent, a preservative and ammonia water according to a certain proportion and a certain process and requirements.
Description
Technical Field
The invention relates to the field of high polymer material adhesives, in particular to an environment-friendly plastic bottle label adhesive for an automatic labeling machine and a preparation method thereof.
Background
At present, the Chinese beer industry becomes one of the most rapidly growing, largest in production and sales and most fiercely competitive industries in the world beer market. There is still a large growth in this market in the next 5 years or so. For a long time, beer is mainly packaged by glass bottles, and particularly in China, the utilization rate of the glass beer bottles reaches over 90 percent. However, the inherent defects of the glass bottles cause the global hot tide of seeking cheap and applicable substitutes, and the European and American countries continuously appear novel plastic PET beer packaging containers, so that the input of China is continuously increased on the subject. Since the prior art is glass bottles, the technology of label adhesives generally remains to be suitable for glass-paper adhesion, and the prior label adhesives mainly comprise casein, starch, polyvinyl alcohol composite modified type, polyvinyl alcohol modified type and the like. They show good characteristics when sticking paper labels on glass bottles, but a plurality of problems occur when meeting plastic bottles, the most prominent problem is that the labels directly fall off after the glue is dried, in addition, the production speed of beer lines also requires that the label glue has excellent initial viscosity and high-speed operability for plastics, and the original adhesive can not adapt to the requirement of high-speed production, so beer manufacturers applying the plastic bottles at home and abroad urgently need a label adhesive suitable for the plastic bottles.
The label glue for glass bottles currently used in breweries is casein glue (German patent: DE4126074A1, Chinese patent:
99105486.5), modified casein glue (chinese patent: 201210081889.1), polyvinyl formal glue and albumin glue, which can not be pasted on plastic bottles, because they are polar substances, the affinity to the non-polar substances is poor, the glue will fall off from the bottle after drying, which affects the beauty of beer; if the traditional paper-plastic film-coated adhesive is used, although the label can be pasted, the cohesive force is very small, and the label is not suitable for high-speed automatic labeling, which brings about great trouble to the development of beer production enterprises. Therefore, the development of plastic bottle label adhesives which meet the production requirements and reduce the production cost becomes a hot spot of current research.
Disclosure of Invention
In order to overcome the defects and shortcomings of the prior glass bottle technology, the invention aims to develop a plastic bottle label adhesive which has wide applicability, low cost, low consumption and excellent non-toxic performance and a preparation method thereof.
The purpose of the invention is realized by the following technical scheme: an environment-friendly label adhesive for plastic bottles for automatic labeling machines comprises the following components in parts by mass: 500-600 deionized water, 1-10 ammonium persulfate, 100-200 polyvinyl alcohol, 5-20 emulsifier, 10-50 rosin, 60-200 butyl acrylate, 40-800 ethyl acrylate, 20-100 methacrylic acid, 30-60 methyl methacrylate, 5-10 cross-linking agent, 2-10 defoamer, 2-10 preservative, and finally adding a proper amount of ammonia water to adjust the pH value to 7 +/-0.5.
The preparation method of the plastic bottle environment-friendly label adhesive for the automatic labeling machine comprises the following steps:
(1) adding 30% of deionized water by weight into a reaction container, then adding the emulsifier in the formula proportion, and stirring at a high speed for 10 minutes;
(2) sequentially adding rosin, methacrylic acid, methyl methacrylate, ethyl acrylate and butyl acrylate in parts by weight into the reaction container, and continuously stirring at a high speed for 60-120 minutes;
(3) dissolving ammonium persulfate in the formula by using a proper amount of deionized water, adding 80% ammonium persulfate solution into a reaction container, and continuously stirring for 10 minutes to prepare pre-emulsified reaction liquid A;
(4) adding the rest 70 percent of deionized water by weight into the other reaction kettle, adding polyvinyl alcohol, heating to 80-85 ℃, and preserving heat for 2 hours;
(5) adding the remaining 20% ammonium persulfate solution in the step (3) under uniform stirring, dropwise adding the pre-emulsified reaction liquid A, controlling the adding for 3-4 hours, and controlling the reaction temperature to be 82 +/-2 ℃;
(6) after the reaction liquid A is dripped, continuously curing and reacting for 1-2 hours at the constant temperature of 82 +/-2 ℃, then cooling to below 40 ℃, adding a cross-linking agent, a defoaming agent and a preservative, and continuously stirring for 1 hour to obtain homogeneous milky slurry, namely the environment-friendly plastic bottle label adhesive for the automatic labeling machine.
(7) And adding water to adjust the viscosity according to the viscosity requirement of the labeling machines of the beer enterprises, detecting other technical indexes, and discharging after the labeling machines are qualified.
Preferably, the emulsifier in step (1) is one or a mixture of OP-10 and OS.
Preferably, the step (6) is that the cross-linking agent is one or a mixture of two of superfine nano zinc oxide and borax.
Preferably, the antifoaming agent in step (6) is a mineral oil antifoaming agent.
Preferably, in the step (6), the preservative is one of cason, methyl paraben and ethyl paraben.
The invention provides a plastic bottle label adhesive for an automatic labeling machine, which is detected by the following technical indexes:
compared with the prior art, the invention has the beneficial effects that: the invention relates to an environment-friendly plastic bottle label adhesive for an automatic labeling machine, which is mainly produced by polymerizing an acrylate emulsion of an apolar substance and an acrylic emulsion of an apolar substance, and assisting with other apolar substances, namely rosin and an apolar substance, namely polyvinyl alcohol. The label adhesive is little affected by temperature difference, labels are flat, and the labeling requirements of high and low speed beer production lines at home and abroad are completely met.
Detailed Description
The following examples will illustrate the method of operation of the present invention in detail, but should not be construed as limiting the invention thereto.
The first embodiment is as follows: the preparation method of the plastic bottle environment-friendly label adhesive for the automatic labeling machine comprises the following steps:
(1) adding 150 kg of deionized water into a reaction vessel, then adding OP-106 kg of deionized water, and stirring at a high speed for 10 minutes;
(2) adding 12 kg of rosin, 30 kg of methacrylic acid, 35 kg of methyl methacrylate, 40 kg of ethyl acrylate and 120 kg of butyl acrylate into the reaction container in sequence, and continuing to stir at high speed for 60-120 minutes;
(3) dissolving 2 kg of ammonium persulfate in 10 kg of deionized water, adding the dissolved ammonium persulfate into the reaction vessel for 9.6 kg, and continuously stirring for 10 minutes to prepare pre-emulsified reaction liquid A;
(4) adding 350 kg of deionized water into the other reaction kettle, adding 80 kg of polyvinyl alcohol, heating to 85-90 ℃, keeping the temperature for 2 hours, and cooling to 82 +/-2 ℃;
(5) adding the residual 2.4 kilograms of ammonium persulfate solution in the step (3) under the condition of uniform stirring, dropwise adding the pre-emulsified reaction liquid A, controlling the adding to be finished within 3-4 hours, and controlling the reaction temperature to be 82 +/-2 ℃;
(6) after the reaction liquid A is dripped, continuously curing and reacting for 1-2 hours at the constant temperature of 82 +/-2 ℃, then cooling to below 40 ℃, adding 6 kg of nano zinc oxide, 5 kg of a mineral oil defoamer and 2 kg of ethylparaben, and continuously stirring for 1 hour to obtain homogeneous milky slurry, namely the environment-friendly plastic bottle label adhesive for the automatic labeling machine;
(7) and adding water to adjust the viscosity according to the viscosity requirement of the labeling machines of the beer enterprises, detecting other technical indexes, and discharging after the labeling machines are qualified.
Example two: the preparation method of the plastic bottle environment-friendly label adhesive for the automatic labeling machine comprises the following steps:
(1) adding 150 kg of deionized water into a reaction vessel, then adding 6 kg of OS, and stirring at a high speed for 10 minutes;
(2) adding 15 kg of rosin, 35 kg of methacrylic acid, 35 kg of methyl methacrylate, 50 kg of ethyl acrylate and 100 kg of butyl acrylate into the reaction container in sequence, and continuing to stir at high speed for 60-120 minutes;
(3) dissolving 2 kg of ammonium persulfate in 10 kg of deionized water, adding the dissolved ammonium persulfate into the reaction vessel for 9.6 kg, and continuously stirring for 10 minutes to prepare pre-emulsified reaction liquid A;
(4) adding 350 kg of deionized water into the other reaction kettle, adding 100 kg of polyvinyl alcohol, heating to 85-90 ℃, keeping the temperature for 2 hours, and cooling to 82 +/-2 ℃;
(5) adding the residual 2.4 kilograms of ammonium persulfate solution in the step (3) under the condition of uniform stirring, dropwise adding the pre-emulsified reaction liquid A, controlling the adding to be finished within 3-4 hours, and controlling the reaction temperature to be 82 +/-2 ℃;
(6) after the reaction liquid A is dripped, continuously curing and reacting for 1-2 hours at the constant temperature of 82 +/-2 ℃, then cooling to below 40 ℃, adding 6 kg of nano zinc oxide, 5 kg of a mineral oil defoamer and 2 kg of ethylparaben, and continuously stirring for 1 hour to obtain homogeneous milky slurry, namely the environment-friendly plastic bottle label adhesive for the automatic labeling machine;
(7) and adding water to adjust the viscosity according to the viscosity requirement of the labeling machines of the beer enterprises, detecting other technical indexes, and discharging after the labeling machines are qualified.
Example three: the preparation method of the plastic bottle environment-friendly label adhesive for the automatic labeling machine comprises the following steps:
(1) adding 150 kg of deionized water into a reaction vessel, then adding OP-106 kg of deionized water, and stirring at a high speed for 10 minutes;
(2) adding 50 kg of rosin, 100 kg of methacrylic acid, 60 kg of methyl methacrylate, 800 kg of ethyl acrylate and 200 kg of butyl acrylate into the reaction container in sequence, and continuing to stir at high speed for 60-120 minutes;
(3) dissolving 10 kg of ammonium persulfate in 10 kg of deionized water, adding the dissolved ammonium persulfate into the reaction vessel for 9.6 kg, and continuously stirring for 10 minutes to prepare pre-emulsified reaction liquid A;
(4) adding 400 kg of deionized water into the other reaction kettle, adding 200 kg of polyvinyl alcohol, heating to 85-90 ℃, preserving heat for 2 hours, and cooling to 82 +/-2 ℃;
(5) adding the remaining 10 kg of ammonium persulfate solution in the step (3) under uniform stirring, dropwise adding the pre-emulsified reaction liquid A, controlling the adding for 3-4 hours, and controlling the reaction temperature to be 82 +/-2 ℃;
(6) after the reaction liquid A is dripped, continuously curing and reacting for 1-2 hours at the constant temperature of 82 +/-2 ℃, then cooling to below 40 ℃, adding 10 kg of nano zinc oxide, 10 kg of a mineral oil defoamer and 10 kg of ethylparaben, and continuously stirring for 1 hour to obtain homogeneous milky slurry, namely the environment-friendly plastic bottle label adhesive for the automatic labeling machine;
(7) and adding water to adjust the viscosity according to the viscosity requirement of the labeling machines of the beer enterprises, detecting other technical indexes, and discharging after the labeling machines are qualified.
Example three: the preparation method of the plastic bottle environment-friendly label adhesive for the automatic labeling machine comprises the following steps:
(1) adding 150 kg of deionized water into a reaction vessel, then adding OP-1010 kg of deionized water, and stirring at a high speed for 10 minutes;
(2) sequentially adding 30 kg of rosin, 60 kg of methacrylic acid, 45 kg of methyl methacrylate, 400 kg of ethyl acrylate and 130 kg of butyl acrylate into the reaction container, and continuously stirring at a high speed for 60-120 minutes;
(3) dissolving 10 kg of ammonium persulfate in 10 kg of deionized water, adding the dissolved ammonium persulfate into the reaction vessel for 9.6 kg, and continuously stirring for 10 minutes to prepare pre-emulsified reaction liquid A;
(4) adding 350 kg of deionized water into the other reaction kettle, adding 200 kg of polyvinyl alcohol, heating to 85-90 ℃, preserving heat for 2 hours, and cooling to 82 +/-2 ℃;
(5) adding the residual 6 kilograms of ammonium persulfate solution in the step (3) under the condition of uniform stirring, dropwise adding the pre-emulsified reaction liquid A, controlling the adding time to be 3-4 hours, and controlling the reaction temperature to be 82 +/-2 ℃;
(6) after the reaction liquid A is dripped, continuously curing and reacting for 1-2 hours at the constant temperature of 82 +/-2 ℃, then cooling to below 40 ℃, adding 7.5 kg of nano zinc oxide, 6 kg of mineral oil defoamer and 6 kg of ethylparaben, and continuously stirring for 1 hour to obtain homogeneous milky slurry, namely the environment-friendly plastic bottle label adhesive for the automatic labeling machine;
(7) and adding water to adjust the viscosity according to the viscosity requirement of the labeling machines of the beer enterprises, detecting other technical indexes, and discharging after the labeling machines are qualified.
Adding water to adjust the viscosity according to the viscosity requirement of labeling machines of various beer enterprises, detecting other technical indexes, and discharging after the labeling machines are qualified.
The above description is only for the 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 cover the technical scope of the present invention by equivalent replacement or change according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.
Claims (6)
1. The plastic bottle environment-friendly label adhesive for the automatic labeling machine is characterized by comprising the following components in parts by mass: 500-600 deionized water, 1-10 ammonium persulfate, 100-200 polyvinyl alcohol, 5-20 emulsifier, 10-50 rosin, 60-200 butyl acrylate, 40-800 ethyl acrylate, 20-100 methacrylic acid, 30-60 methyl methacrylate, 5-10 cross-linking agent, 2-10 defoamer, 2-10 preservative, and finally adding a proper amount of ammonia water to adjust the pH value to 7 +/-0.5.
2. The method for preparing the environment-friendly label adhesive for the plastic bottle for the automatic labeling machine according to claim 1, which is characterized by comprising the following steps:
(1) adding 30% of deionized water by weight into a reaction container, then adding the emulsifier in the formula proportion, and stirring at a high speed for 10 minutes;
(2) sequentially adding rosin, methacrylic acid, methyl methacrylate, ethyl acrylate and butyl acrylate in parts by weight into the reaction container, and continuously stirring at a high speed for 60-120 minutes;
(3) dissolving ammonium persulfate in the formula by using a proper amount of deionized water, adding 80% ammonium persulfate solution into a reaction container, and continuously stirring for 10 minutes to prepare pre-emulsified reaction liquid A;
(4) adding the rest 70 percent of deionized water by weight into the other reaction kettle, adding polyvinyl alcohol, heating to 80-85 ℃, and preserving heat for 2 hours;
(5) adding the remaining 20% ammonium persulfate solution in the step (3) under uniform stirring, dropwise adding the pre-emulsified reaction liquid A, controlling the adding for 3-4 hours, and controlling the reaction temperature to be 82 +/-2 ℃;
(6) after the reaction liquid A is dripped, continuously curing and reacting for 1-2 hours at the constant temperature of 82 +/-2 ℃, then cooling to below 40 ℃, adding a cross-linking agent, a defoaming agent and a preservative, and continuously stirring for 1 hour to obtain homogeneous milky slurry, namely the environment-friendly plastic bottle label adhesive for the automatic labeling machine;
(7) and adding water to adjust the viscosity according to the viscosity requirement of the labeling machines of the beer enterprises, detecting other technical indexes, and discharging after the labeling machines are qualified.
3. The method for preparing the environment-friendly label adhesive for plastic bottles for automatic labeling machines according to claim 2, wherein the emulsifier in step (1) is one or a mixture of OP-10 and OS.
4. The method for preparing the environment-friendly label adhesive for the plastic bottle for the automatic labeling machine according to claim 2, wherein the step (6) is that the crosslinking agent is one or a mixture of superfine nano zinc oxide and borax.
5. The method for preparing an environment-friendly label adhesive for plastic bottles for automatic labeling machines according to claim 2, wherein the antifoaming agent in step (6) is a mineral oil antifoaming agent.
6. The method for preparing an environment-friendly label adhesive for plastic bottles for automatic labeling machines according to claim 2, wherein the preservative in step (6) is one of cason, methylparaben and ethylparaben.
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| CN201711416004.8A CN108192535B (en) | 2017-12-25 | 2017-12-25 | Plastic bottle environment-friendly label adhesive for automatic labeling machine and preparation method thereof |
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| CN108192535B true CN108192535B (en) | 2020-06-19 |
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| CN85104593A (en) * | 1985-06-08 | 1986-12-03 | 湖南省林业科学研究所 | Acrylate pressure sensitive adhesive modified by hydrogenated rosin |
| CN102086359A (en) * | 2010-12-08 | 2011-06-08 | 江南大学 | Preparation method of waterproof label adhesive |
| CN104004477A (en) * | 2014-05-23 | 2014-08-27 | 华南理工大学 | Room temperature self-crosslinking polyacrylate pressure-sensitive adhesive and preparation method and application thereof |
| CN105647441A (en) * | 2016-04-14 | 2016-06-08 | 苏州市丛岭胶粘剂有限公司 | Plastic label adhesive and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10308046A1 (en) * | 2003-02-26 | 2004-09-23 | Asiral Industriereiniger Gmbh | Bifunctional glue for sticking labels on reusable food containers, e.g. drinks bottles, contains at least one active accelerator for the stripping and cleaning action of alkaline media |
| US9914858B2 (en) * | 2005-05-20 | 2018-03-13 | Avery Dennison Corporation | Water whitening-resistant pressure sensitive adhesives |
| JP4966398B2 (en) * | 2009-08-05 | 2012-07-04 | ローム アンド ハース カンパニー | Wash-off label |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85104593A (en) * | 1985-06-08 | 1986-12-03 | 湖南省林业科学研究所 | Acrylate pressure sensitive adhesive modified by hydrogenated rosin |
| CN102086359A (en) * | 2010-12-08 | 2011-06-08 | 江南大学 | Preparation method of waterproof label adhesive |
| CN104004477A (en) * | 2014-05-23 | 2014-08-27 | 华南理工大学 | Room temperature self-crosslinking polyacrylate pressure-sensitive adhesive and preparation method and application thereof |
| CN105647441A (en) * | 2016-04-14 | 2016-06-08 | 苏州市丛岭胶粘剂有限公司 | Plastic label adhesive and preparation method thereof |
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