CN115044338A - Water-based formaldehyde-free adhesive for cigarette packaging and preparation method and application thereof - Google Patents
Water-based formaldehyde-free adhesive for cigarette packaging and preparation method and application thereof Download PDFInfo
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- CN115044338A CN115044338A CN202210869461.7A CN202210869461A CN115044338A CN 115044338 A CN115044338 A CN 115044338A CN 202210869461 A CN202210869461 A CN 202210869461A CN 115044338 A CN115044338 A CN 115044338A
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- free adhesive
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- aldehyde
- adhesive
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
- C09J175/04—Polyurethanes
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- 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
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention provides a water-based aldehyde-free adhesive for cigarette packaging and a preparation method and application thereof, wherein the water-based aldehyde-free adhesive is prepared from the following raw materials in parts by mass: 80-90 parts of waterborne polyurethane resin; 10-20 parts of acrylic resin; 0.2-0.5 of sodium hydroxide solution; 1-3 parts of diethanolamine; 0.5-1.0% of isocyanate; 0.5-1.0% of defoaming agent; 1-2 parts of a wetting agent; 0.1 to 0.3 of a thickener. The water-based formaldehyde-free adhesive for cigarette packaging is mainly applied to cigarette packaging and manufacturing, has good adhesive force, high drying speed, good compatibility with alcohol and good flexibility and high bonding strength, is impermeable to the surface of a base material, and can increase the flexibility, the flatness and the smoothness of cigarettes and cigarette holders.
Description
Technical Field
The invention relates to the technical field of adhesives, in particular to a water-based formaldehyde-free adhesive for cigarette packaging and a preparation method and application thereof.
Background
A cigarette is made of dozens of materials, and besides main components such as tobacco shreds, tobacco essence, tipping paper and the like, the adhesive for bonding a filter stick, cigarette paper, tipping paper and a packing box is also an indispensable auxiliary material in finished cigarettes. The adhesives for cigarettes comprise a plurality of types such as filter tip glue, filter rod glue, middle seam glue, decal glue, small box packaging glue and large box packaging glue, and are generally used for the processes of filter tip rod manufacturing, cigarette paper rolling, filter tip connecting, small box packaging, large box packaging and the like. The adhesive for cigarettes mainly needs to have the following properties: the adhesive does not contain organic solvent, is nontoxic, odorless and pollution-free, has proper viscosity and good storage stability and mechanical stability, and has the advantages of high bonding speed, uniform spraying, smooth bonding and the like.
The adhesive for cigarettes developed at present is mainly emulsion adhesive, mainly acrylic resin emulsion, wherein vinyl acetate-ethylene copolymer emulsion is taken as a main component, the vinyl acetate-ethylene copolymer emulsion is sticky in summer and cold and crisp, the performance is obviously different along with seasonal temperature change, the safety is low, and the quality and the taste of cigarettes are influenced by gas released during combustion. The vinyl acetate-ethylene copolymer emulsion has low initial viscosity, higher glass transition temperature and poorer cold resistance, and is easy to crack at low temperature to influence the hand feeling of cigarettes. If the plasticizer or the solvent is added, the volatile is difficult to volatilize and the product is harmful to human bodies.
Disclosure of Invention
The invention aims to provide a water-based formaldehyde-free adhesive for cigarette packaging and a preparation method and application thereof.
In order to meet the technical purpose and the related technical purpose, the invention provides a water-based formaldehyde-free adhesive for cigarette packaging, which is prepared from the following raw materials in parts by mass:
in an example of the aqueous aldehyde-free adhesive for cigarette packaging of the present invention, the aqueous polyurethane resin is synthesized from polyether and polyester.
In an example of the aqueous aldehyde-free adhesive for cigarette packaging, the mass ratio of the polyether to the polyester in the aqueous polyurethane resin is 7: 3.
In an example of the aqueous aldehyde-free adhesive for cigarette packaging of the present invention, the solid content of the aqueous polyurethane resin is 37 to 40%, and the viscosity is 50 to 200mPa · s.
In an example of the aqueous aldehyde-free adhesive for cigarette packaging of the present invention, the polyether is one or more of polyethylene glycol ether, polypropylene glycol ether glycol, and polytetrahydrofuran ether glycol.
In an example of the aqueous aldehyde-free adhesive for cigarette packaging of the present invention, the polyester is one or more of polytetramethylene adipate, polyhexamethylene adipate and neopentyl glycol ester.
In an example of the aqueous aldehyde-free adhesive for cigarette packaging of the present invention, the acrylic resin is one or more of a vinyl acetate-ethylene copolymer emulsion, a self-crosslinking acrylic resin, and a hydroxy acrylic resin.
In an example of the aqueous aldehyde-free adhesive for cigarette packaging, the content of ethylene in the vinyl acetate-ethylene copolymer emulsion is 14-17%, and the solid content is more than 50%.
In an example of the aqueous aldehyde-free adhesive for cigarette packaging of the present invention, the solid content of the sodium hydroxide solution is 2 to 3%.
In an example of the aqueous aldehyde-free adhesive for cigarette packaging according to the present invention, the isocyanate is one or more of hexamethylene diisocyanate, isophorone diisocyanate, and dicyclohexylmethane diisocyanate.
In an example of the aqueous aldehyde-free adhesive for cigarette packaging of the present invention, the defoamer is a silicone defoamer.
In an example of the aqueous aldehyde-free adhesive for cigarette packaging of the present invention, the wetting agent is a nonionic surfactant.
In an example of the aqueous aldehyde-free adhesive for cigarette packaging, the thickener is an associated polyurethane thickener, and the associated polyurethane thickener is an alkali swelling thickener, and is prepared by swelling polyurethane and alkali, wherein the mass ratio of the polyurethane to the alkali is 4: 1.
The invention also provides a preparation method of the water-based formaldehyde-free adhesive for cigarette packaging, which comprises the following steps:
adding the waterborne polyurethane resin into a stirring kettle, then adding the acrylic resin, then adding the sodium hydroxide solution, adjusting the pH value to 8-9, stirring for 10-30 minutes, adding the defoaming agent, the wetting agent and the thickening agent, stirring uniformly, then adding the isocyanate and the diethanol amine, and stirring for 10-30 minutes to obtain the waterborne aldehyde-free adhesive.
In one example of the preparation method of the water-based formaldehyde-free adhesive for cigarette packaging, the rotation speed of the stirring kettle is 400-500 r/min.
In one example of the preparation method of the aqueous aldehyde-free adhesive for cigarette packaging, the adding speed of the sodium hydroxide solution is 0.8-1.2 kg/min.
The invention also comprises the application of the water-based aldehyde-free adhesive in cigarette packaging and production.
The water-based formaldehyde-free adhesive for cigarette packaging is mainly applied to cigarette packaging and manufacturing, has good adhesive force, high drying speed, good compatibility with alcohol and good flexibility and high bonding strength, is impermeable to the surface of a base material, and can increase the flexibility, the flatness and the smoothness of cigarettes and cigarette holders.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It should be noted that the features in the following embodiments and examples may be combined with each other without conflict. It is also to be understood that the terminology used in the examples is for the purpose of describing particular embodiments only, and is not intended to limit the scope of the present invention. Test methods in which specific conditions are not specified in the following examples are generally carried out under conventional conditions or under conditions recommended by the respective manufacturers.
When numerical ranges are given in the examples, it is understood that both endpoints of each of the numerical ranges and any value therebetween can be selected unless the invention otherwise indicated. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs and the description of the present invention, and any methods, apparatuses, and materials similar or equivalent to those in the embodiments of the present invention may be used to practice the present invention.
The invention provides a water-based aldehyde-free adhesive for cigarette packaging, which is prepared from the following raw materials in parts by mass:
in an example of the aqueous aldehyde-free adhesive for cigarette packaging of the present invention, the aqueous polyurethane resin is synthesized from polyether and polyester.
In an example of the aqueous aldehyde-free adhesive for cigarette packaging, the mass ratio of the polyether to the polyester in the aqueous polyurethane resin is 7: 3.
In an example of the aqueous aldehyde-free adhesive for cigarette packaging of the present invention, the solid content of the aqueous polyurethane resin is 37 to 40%, and the viscosity is 50 to 200mPa · s.
In an example of the aqueous aldehyde-free adhesive for cigarette packaging of the present invention, the polyether is one or more of polyethylene glycol ether, polypropylene glycol ether glycol, and polytetrahydrofuran ether glycol.
In an example of the aqueous aldehyde-free adhesive for cigarette packaging of the present invention, the polyester is one or more of polytetramethylene adipate, polyhexamethylene adipate and neopentyl glycol ester.
In an example of the aqueous aldehyde-free adhesive for cigarette packaging of the present invention, the acrylic resin is one or more of a vinyl acetate-ethylene copolymer emulsion, a self-crosslinking acrylic resin, and a hydroxy acrylic resin.
In an example of the aqueous aldehyde-free adhesive for cigarette packaging, the content of ethylene in the vinyl acetate-ethylene copolymer emulsion is 14-17%, and the solid content is more than 50%.
In an example of the aqueous aldehyde-free adhesive for cigarette packaging of the present invention, the solid content of the sodium hydroxide solution is 2 to 3%.
In an example of the aqueous aldehyde-free adhesive for cigarette packaging according to the present invention, the isocyanate is one or more of hexamethylene diisocyanate, isophorone diisocyanate, and dicyclohexylmethane diisocyanate.
In an example of the aqueous aldehyde-free adhesive for cigarette packaging according to the present invention, the defoamer is a silicone defoamer.
In an example of the aqueous aldehyde-free adhesive for cigarette packaging of the present invention, the wetting agent is a nonionic surfactant.
In an example of the aqueous aldehyde-free adhesive for cigarette packaging, the thickener is an associated polyurethane thickener, and the associated polyurethane thickener is an alkali swelling thickener, and is prepared by swelling polyurethane and alkali, wherein the mass ratio of the polyurethane to the alkali is 4: 1.
The invention also provides a preparation method of the water-based formaldehyde-free adhesive for cigarette packaging, which comprises the following steps:
adding the waterborne polyurethane resin into a stirring kettle, then adding the acrylic resin, then adding the sodium hydroxide solution, adjusting the pH value to 8-9, stirring for 10-30 minutes, adding the defoaming agent, the wetting agent and the thickening agent, stirring uniformly, then adding the isocyanate and the diethanol amine, and stirring for 10-30 minutes to obtain the waterborne aldehyde-free adhesive.
In one example of the preparation method of the water-based formaldehyde-free adhesive for cigarette packaging, the rotation speed of the stirring kettle is 400-500 r/min.
In one example of the preparation method of the aqueous aldehyde-free adhesive for cigarette packaging, the adding speed of the sodium hydroxide solution is 0.8-1.2 kg/min.
The invention also comprises the application of the water-based aldehyde-free adhesive in cigarette packaging and production.
The waterborne polyurethane resin used in the invention is synthesized from polyether and polyester, wherein the mass ratio of the polyether to the polyester is 7:3, and the polyether accounts for more mass, so that the waterborne polyurethane resin has better flexibility and can effectively prevent bursting. The solid content of the waterborne polyurethane resin is 37-40%, the viscosity is 500-1000 mPa s, the tensile modulus is 6-8 MPa, the bonding strength is 35-40 MPa, the elongation is 400-600%, the glossiness is 20 ℃/30 DEG, 60 ℃/80 DEG, 80 ℃/96 DEG, and the glossiness of the adhesive film is different at different temperatures.
The acrylic resin used in the invention is preferably vinyl acetate-ethylene copolymer emulsion, wherein the content of ethylene is 14-17%, if the content of ethylene is too high, the adhesive force between the adhesive film and the base material is poor, and if the content of ethylene is too low, the water resistance of the adhesive film is poor. The sodium hydroxide solution has stronger alkalinity, and is used for replacing volatile triethylamine, thereby being more beneficial to environmental protection. The isocyanate can improve the inverted pattern performance of the adhesive. The diethanol amine contains hydroxyl and amino functional groups, can react with the waterborne polyurethane resin and the isocyanate, and can effectively improve the reaction speed.
Example 1
Taking the following raw materials in parts by mass:
and adding the waterborne polyurethane resin into a stirring kettle, and controlling the rotating speed of the stirring kettle to be 400 r/min. And then adding the acrylic resin, and then adding the sodium hydroxide solution, wherein the adding speed of the sodium hydroxide solution is 0.8kg/min, adjusting the pH value to 8, stirring for 10 minutes, adding the defoaming agent, the wetting agent and the thickening agent, stirring uniformly, adding the isocyanate and the diethanol amine, and stirring for 10 minutes to obtain the aqueous aldehyde-free adhesive.
The viscosity of the aqueous aldehyde-free adhesive was adjusted to less than 50s and its solids content was adjusted to 38% using a 4-cup paint test. Coating the water-based formaldehyde-free adhesive on a hard paper shell, wherein the coating weight is 4g/m 2 And then attaching one end of the reverse side of the PET film to the glue layer, gradually unfolding the PET film and attaching the PET film to the glue layer by using a coating and scraping rod, finally putting the PET film into an oven, drying the PET film for 10 seconds at the temperature of 130 ℃, adhering the PET film to a hard paper shell by using glue, and then taking out the PET film for testing. The tensile modulus of the adhesive film is 8MPa, the bonding strength is 40MPa, and the elongation is 550%. The water-based aldehyde-free adhesive has high drying speed, no permeation to the surface of a base material and good compatibility with alcohol.
And (3) folding the dried hard paper shell in the forward direction, then folding the hard paper shell in the reverse direction, repeatedly folding the hard paper shell in the reverse direction for 5 times, polishing and irradiating the hard paper shell by using a flashlight, and observing that no obvious crack exists at the crease. And (3) sticking the 3M adhesive tape on the surface of the adhesive film, pulling the 3M adhesive tape at a constant speed by using a pulling force of 10kg, and observing that no obvious stripping or inverted gloss sticking is generated at the stripping part. And (5) placing the film into an oven, and testing the film for 24 hours at the temperature of 60 ℃ to ensure that the surface of the film has no light loss and no flower surface.
Example 2
Taking the following raw materials in parts by mass:
and adding the waterborne polyurethane resin into a stirring kettle, and controlling the rotating speed of the stirring kettle to be 450 r/min. And then adding the acrylic resin, and then adding the sodium hydroxide solution, wherein the adding speed of the sodium hydroxide solution is 1kg/min, adjusting the pH value to 8.5, stirring for 20 minutes, adding the defoaming agent, the wetting agent and the thickening agent, stirring uniformly, adding the isocyanate and the diethanol amine, and stirring for 20 minutes to obtain the aqueous aldehyde-free adhesive.
The viscosity of the aqueous aldehyde-free adhesive was adjusted to less than 50s and its solids content was adjusted to 39% using a 4-cup paint test. Then coating the water-based formaldehyde-free adhesive on cigarette paper, wherein the coating weight is 4.5g/m 2 And then attaching one end of the reverse side of the PET film to the glue layer, gradually unfolding and attaching the PET film to the glue layer by using a coating and scraping rod, finally putting the PET film into an oven, drying the PET film for 10 seconds at the temperature of 130 ℃, adhering the PET film to cigarette wrapping paper by using glue, and then taking out the PET film for testing. The tensile modulus of the adhesive film is 8.3MPa, the bonding strength is 43MPa, and the elongation is 600%. The water-based aldehyde-free adhesive has high drying speed, no permeation to the surface of a base material and good compatibility with alcohol.
The dried cigarette packet paper is firstly folded in the forward direction, then folded in the reverse direction, repeatedly folded in the reverse direction for 5 times, and then irradiated by lighting with a flashlight, and no obvious crack is observed at the crease. And (3) sticking the 3M adhesive tape on the surface of the adhesive film, pulling the 3M adhesive tape at a constant speed by using a pulling force of 10kg, and observing that no obvious stripping or inverted gloss sticking is generated at the stripping part. And (5) placing the film into an oven, and testing the film for 24 hours at the temperature of 60 ℃ to ensure that the surface of the film has no light loss and no flower surface.
Example 3
Taking the following raw materials in parts by mass:
and adding the waterborne polyurethane resin into a stirring kettle, and controlling the rotating speed of the stirring kettle to be 500 r/min. And then adding the acrylic resin, then adding the sodium hydroxide solution, wherein the adding speed of the sodium hydroxide solution is 1.2kg/min, adjusting the pH value to 9, stirring for 30 minutes, adding the defoaming agent, the wetting agent and the thickening agent, stirring uniformly, adding the isocyanate and the diethanol amine, and stirring for 30 minutes to obtain the aqueous aldehyde-free adhesive.
The viscosity of the aqueous aldehyde-free adhesive was adjusted to less than 50s and its solids content was adjusted to 40% using a 4-cup paint test. Then the water-based formaldehyde-free adhesive is coated on cigarette paper, wherein the coating weight is 5g/m 2 And then attaching one end of the reverse side of the PET film to the glue layer, gradually unfolding and attaching the PET film to the glue layer by using a coating and scraping rod, finally putting the PET film into an oven, drying the PET film for 10 seconds at the temperature of 130 ℃, adhering the PET film to cigarette wrapping paper by using glue, and then taking out the PET film for testing. The tensile modulus of the adhesive film is 9MPa, the bonding strength is 50MPa, and the elongation is 700%. The water-based aldehyde-free adhesive has high drying speed, no permeation to the surface of a base material and good compatibility with alcohol.
The dried cigarette packet paper is firstly folded in the forward direction, then folded in the reverse direction, repeatedly folded in the reverse direction for 5 times, and then irradiated by lighting with a flashlight, and no obvious crack is observed at the crease. And (3) sticking the 3M adhesive tape on the surface of the adhesive film, pulling the 3M adhesive tape at a constant speed by using a pulling force of 10kg, and observing that no obvious stripping or inverted gloss sticking is generated at the stripping part. And (5) placing the film into an oven, and testing the film for 24 hours at the temperature of 60 ℃ to ensure that the surface of the film has no light loss and no flower surface.
Example 4
Taking the following raw materials in parts by mass:
and adding the waterborne polyurethane resin into a stirring kettle, and controlling the rotating speed of the stirring kettle to be 500 r/min. And then adding the acrylic resin, then adding the sodium hydroxide solution at a speed of 1kg/min, adjusting the pH value to 8, stirring for 30 minutes, adding the defoaming agent, the wetting agent and the thickening agent, stirring uniformly, adding the isocyanate and the diethanol amine, and stirring for 30 minutes to obtain the aqueous aldehyde-free adhesive.
The viscosity of the aqueous aldehyde-free adhesive was adjusted to less than 50s and its solids content was adjusted to 40% using a 4-cup paint test. Then coating the water-based formaldehyde-free adhesive on a hard paper shell, wherein the coating weight is 5g/m 2 And then attaching one end of the reverse side of the PET film to the glue layer, gradually unfolding the PET film and attaching the PET film to the glue layer by using a coating and scraping rod, finally putting the PET film into an oven, drying the PET film for 10 seconds at the temperature of 130 ℃, adhering the PET film to a hard paper shell by using glue, and then taking out the PET film for testing. The tensile modulus of the adhesive film is 8.6MPa, the bonding strength is 47MPa, and the elongation is 650%. The water-based aldehyde-free adhesive has high drying speed, no permeation to the surface of a base material and good compatibility with alcohol.
And (3) folding the dried hard paper shell in the forward direction, then folding the hard paper shell in the reverse direction, repeatedly folding the hard paper shell in the reverse direction for 5 times, polishing and irradiating the hard paper shell by using a flashlight, and observing that no obvious crack exists at the crease. And (3) sticking the 3M adhesive tape on the surface of the adhesive film, pulling the 3M adhesive tape at a constant speed by using a pulling force of 10kg, and observing that no obvious stripping or inverted gloss sticking is generated at the stripping part. And (5) placing the film into an oven, and testing the film for 24 hours at the temperature of 60 ℃ to ensure that the surface of the film has no light loss and no flower surface.
Example 5
Taking the following raw materials in parts by mass:
and adding the waterborne polyurethane resin into a stirring kettle, and controlling the rotating speed of the stirring kettle to be 500 r/min. And then adding the acrylic resin, then adding the sodium hydroxide solution, wherein the adding speed of the sodium hydroxide solution is 1kg/min, adjusting the pH value to 8, stirring for 30 minutes, adding the defoaming agent, the wetting agent and the thickening agent, stirring uniformly, adding the isocyanate and the diethanol amine, and stirring for 30 minutes to obtain the aqueous aldehyde-free adhesive.
The viscosity of the aqueous aldehyde-free adhesive was adjusted to less than 50s and its solids content was adjusted to 40% using a 4-cup paint test. Then coating the water-based formaldehyde-free adhesive on cigarette paper, wherein the coating weight is 5g/m 2 And then attaching one end of the reverse side of the PET film to the glue layer, gradually unfolding and attaching the PET film to the glue layer by using a coating and scraping rod, finally putting the PET film into an oven, drying the PET film for 10 seconds at the temperature of 130 ℃, adhering the PET film to cigarette wrapping paper by using glue, and then taking out the PET film for testing. The tensile modulus of the adhesive film is 8.4MPa, the bonding strength is 45MPa, and the elongation is 620%. The water-based aldehyde-free adhesive has high drying speed, no permeation to the surface of a base material and good compatibility with alcohol.
The dried cigarette packet paper is firstly folded in the forward direction, then folded in the reverse direction, repeatedly folded in the reverse direction for 5 times, and then irradiated by lighting with a flashlight, and no obvious crack is observed at the crease. And (3) sticking the 3M adhesive tape on the surface of the adhesive film, pulling the 3M adhesive tape at a constant speed by using a pulling force of 10kg, and observing that no obvious stripping or inverted gloss sticking is generated at the stripping part. And (5) placing the film into an oven, and testing the film for 24 hours at the temperature of 60 ℃ to ensure that the surface of the film has no light loss and no flower surface.
In conclusion, the aqueous aldehyde-free adhesive prepared by the invention has the characteristics of high drying speed, no permeation to the surface of a base material and good compatibility with alcohol, and is beneficial to the packaging and production of cigarettes. The water-based formaldehyde-free adhesive has good adhesive force, the adhesive film has good flexibility, and the flatness and smoothness of cigarettes and cigarette holders can be improved.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. The water-based formaldehyde-free adhesive for cigarette packaging is characterized by being prepared from the following raw materials in parts by mass:
2. the aqueous aldehyde-free adhesive for cigarette packaging according to claim 1, wherein the aqueous polyurethane resin is synthesized from polyether and polyester.
3. The aqueous aldehyde-free adhesive for cigarette packaging according to claim 2, wherein the mass ratio of the polyether to the polyester in the aqueous polyurethane resin is 7: 3.
4. The aqueous aldehyde-free adhesive for cigarette packaging of claim 2, wherein the polyether is one or more of polyethylene glycol ether, polypropylene glycol ether glycol, polytetrahydrofuran ether glycol.
5. The aqueous aldehyde-free adhesive for cigarette packaging according to claim 2, wherein the polyester is one or more of polytetramethylene glycol adipate, polyhexamethylene glycol adipate and neopentyl glycol ester.
6. The aqueous aldehyde-free adhesive for cigarette packaging according to claim 1, wherein the acrylic resin is one or more of a vinyl acetate-ethylene copolymer emulsion, a self-crosslinking acrylic resin, and a hydroxyl acrylic resin.
7. The aqueous aldehyde-free adhesive for cigarette packaging according to claim 1, wherein the isocyanate is one or more of hexamethylene diisocyanate, isophorone diisocyanate, and dicyclohexylmethane diisocyanate.
8. The aqueous aldehyde-free adhesive for cigarette packaging according to claim 1, wherein the defoamer is a silicone defoamer, the wetting agent is a nonionic surfactant, and the thickener is an associative polyurethane thickener.
9. The method for preparing the aqueous aldehyde-free adhesive for cigarette packaging according to any one of claims 1 to 8, comprising the steps of:
adding the waterborne polyurethane resin into a stirring kettle, then adding the acrylic resin, then adding the sodium hydroxide solution, adjusting the pH value to 8-9, stirring for 10-30 minutes, adding the defoaming agent, the wetting agent and the thickening agent, stirring uniformly, then adding the isocyanate and the diethanol amine, and stirring for 10-30 minutes to obtain the waterborne aldehyde-free adhesive.
10. Use of the aqueous aldehyde-free adhesive for cigarette packaging according to any one of claims 1 to 8 in cigarette packaging and production.
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| CN202210869461.7A CN115044338A (en) | 2022-07-22 | 2022-07-22 | Water-based formaldehyde-free adhesive for cigarette packaging and preparation method and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210869461.7A CN115044338A (en) | 2022-07-22 | 2022-07-22 | Water-based formaldehyde-free adhesive for cigarette packaging and preparation method and application thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102585734A (en) * | 2012-01-18 | 2012-07-18 | 滨州职业学院 | Low-temperature-resistant water-based adhesive and preparation method thereof |
| CN107033321A (en) * | 2017-04-13 | 2017-08-11 | 合肥科天水性科技有限责任公司 | A kind of waterborne polyurethane resin and preparation method thereof |
| CN109251703A (en) * | 2018-08-06 | 2019-01-22 | 常德市芙蓉实业发展有限责任公司 | A kind of anti-shearing cigarette is with connecing mouth glue and preparation method thereof |
| CN111303817A (en) * | 2020-02-19 | 2020-06-19 | 北京高盟新材料股份有限公司 | Flame-retardant waterborne polyurethane adhesive and preparation method thereof |
| CN114395359A (en) * | 2021-10-13 | 2022-04-26 | 南京伊戈高分子复合新材料科技有限公司 | High-strength water-based polyurethane adhesive and preparation method thereof |
-
2022
- 2022-07-22 CN CN202210869461.7A patent/CN115044338A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102585734A (en) * | 2012-01-18 | 2012-07-18 | 滨州职业学院 | Low-temperature-resistant water-based adhesive and preparation method thereof |
| CN107033321A (en) * | 2017-04-13 | 2017-08-11 | 合肥科天水性科技有限责任公司 | A kind of waterborne polyurethane resin and preparation method thereof |
| CN109251703A (en) * | 2018-08-06 | 2019-01-22 | 常德市芙蓉实业发展有限责任公司 | A kind of anti-shearing cigarette is with connecing mouth glue and preparation method thereof |
| CN111303817A (en) * | 2020-02-19 | 2020-06-19 | 北京高盟新材料股份有限公司 | Flame-retardant waterborne polyurethane adhesive and preparation method thereof |
| CN114395359A (en) * | 2021-10-13 | 2022-04-26 | 南京伊戈高分子复合新材料科技有限公司 | High-strength water-based polyurethane adhesive and preparation method thereof |
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