CN106675384B - Multifunctional coating for polyethylene candy wrapping film - Google Patents
Multifunctional coating for polyethylene candy wrapping film Download PDFInfo
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- CN106675384B CN106675384B CN201611117856.2A CN201611117856A CN106675384B CN 106675384 B CN106675384 B CN 106675384B CN 201611117856 A CN201611117856 A CN 201611117856A CN 106675384 B CN106675384 B CN 106675384B
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D177/00—Coating compositions based on polyamides obtained by reactions forming a carboxylic amide link in the main chain; Coating compositions based on derivatives of such polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/0427—Coating with only one layer of a composition containing a polymer binder
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D129/00—Coating compositions 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 alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Coating compositions based on hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Coating compositions based on derivatives of such polymers
- C09D129/14—Homopolymers or copolymers of acetals or ketals obtained by polymerisation of unsaturated acetals or ketals or by after-treatment of polymers of unsaturated alcohols
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/04—Homopolymers or copolymers of ethene
- C08J2323/06—Polyethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2429/00—Characterised by the use of 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 alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Derivatives of such polymer
- C08J2429/14—Homopolymers or copolymers of acetals or ketals obtained by polymerisation of unsaturated acetals or ketals or by after-treatment of polymers of unsaturated alcohols
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2477/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
-
- 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 present invention provides a kind of multifunctional coating for polyethylene candy wrapping film, each component including following weight percentage: polyamide 10~30%；Epoxy resin 5~8%；Polyvinyl butyral resin 4~12%；Auxiliary agent 0.1~0.5%；Solvent 60~70%.Compared with prior art, the invention has the following advantages: coating facilitates coating levelling good；Coating attachment fastness is good；It is molded wide adaptability；Coating antifalse effect is prominent.
Description
Technical field
The present invention relates to a kind of coating, and in particular to a kind of multifunctional coating for polyethylene candy wrapping film.
Background technique
With being constantly progressive for society, packaging develops to today from birth, as a part of goods themselves, importance
Obviously.Candy wrapping the storage of candy, transport, sale, safety in terms of play a crucial role.
Firstly, the barrier property of packaging can prevent the erosion of sunlight, atmospheric vapour, prevent candy from deliquescing, oxidation, while also maintaining sugar
The due gloss of fruit, flavor, form etc.；Secondly, the demonstration effect of candy wrapping plays in candy sales process to despise
Effect, the packaging of novel and unique can attract the eyeball of consumer, and the desire to purchase of stimulation target consumer groups improves candy
The sense organ of product is worth；Moreover, packaging guarantee candy from production, transport, shelf this serial link into ultimate consumer's hand
Wholesomeness, prevent microorganism and dust from polluting, play the role of food safety bodyguard.
Since two thousand and ten, China's candy market is always maintained at 8~12% or so growth rate, than global candy city
Field average annual growth is higher by nearly 5 percentage points, becomes one of industry fast-developing in food industry.It is expected that the following several years
It is interior, confectionery industry by keep 10% or so growth rate.Furthermore year candy consumption figure is about 1.2 kilograms per capita at present in China,
Compared with the country such as Europe, America per capita 9.4 kilograms of annual consumption, there are huge spread, show that China's candy industry has very
Big development potentiality and wide development space.So corresponding candy wrapping industry, it is also just equally empty with wide development
Between and huge development potentiality！
It is more for the material category of candy wrapping on the market, wherein with the relatively conventional of polyethylene material, and there is spy
Favor of the polyethylene candy wrapping film of distinguished service energy increasingly by market.
The existing multifunctional coating for polyethylene candy wrapping material is mainly oiliness dual-component coating, and coating machine applies
After cloth, coated film has to pass through prolonged baking in drying tunnel, and two components could sufficiently reacting drying solidify, cause whole
Production efficiency is lower；There is also larger defects on rear road mould pressing process simultaneously, dope layer easily occur and adhere in nickel version, from
And the grating various problems such as cause holographic effect imperfect are blocked, therefore seriously limit it and lead in polyethylene candy wrapping material
The development in domain.
Summary of the invention
It is an object of the invention to overcome above-mentioned coating, a kind of more function for polyethylene candy wrapping film are provided
Energy coating is a kind of one-component coating of function admirable, is used for polyethylene candy wrapping film, can make polyethylene candy wrapping
Film is even better in novel and unique and anti-fake aspect, to have good market prospects.
The purpose of the present invention is what is be achieved through the following technical solutions:
The present invention provides a kind of multifunctional coatings for polyethylene candy wrapping film, including following weight percentage
Each component:
Preferably, the polyamide includes one of non-reacted polyamide, reactive polyamide resin
Or two kinds of mixture.
Preferably, it is (1~3) that the polyamide, which includes weight ratio: the non-reacted polyamide of (0~2), anti-
Answering property polyamide.
Preferably, the epoxy resin includes glycidyl ether type epoxy resin, glycidyl ester epoxy resin, contracting
The mixture of one or more of water glycerol amine epoxy resin.
It is highly preferred that it is (1~2): (1~4): the glycidol ethers ring of (0~3) that the epoxy resin, which includes weight ratio,
Oxygen resin, glycidyl ester epoxy resin, glycidyl amine epoxy resin.
Preferably, the polyvinyl butyral resin includes the polyvinyl butyral resin of medium viscosity, low viscosity
One or both of polyvinyl butyral resin mixture.The polyvinyl butyral resin of the medium viscosity glues
Degree is 90~240mpa.s, and the viscosity of the polyvinyl butyral resin of the low viscosity is 9~55mpa.s.The viscosity exists
10% admittedly containing when measure.
Preferably, it is (0~4): the poly- second of the medium viscosity of (1~2) that the polyvinyl butyral resin, which includes weight ratio,
The polyvinyl butyral resin of enol butyral resin and low viscosity.
Preferably, the auxiliary agent includes at least one of levelling agent, curing agent, slipping agent, defoaming agent.
Preferably, the solvent include cyclohexanone, ethyl acetate, n-propyl acetate, n-butanol, in n-butyl acetate
At least two.
The present invention also provides a kind of preparation method of multifunctional coating for polyethylene candy wrapping film, including it is following
Step:
A1, each component is weighed by weight percentage, solvent is put into reaction kettle, is warming up to 55~60 DEG C；
A2, again by polyamide, epoxy resin, polyvinyl butyral resin investment reaction kettle in, high-speed stirred 2.5
~4.0 hours, until sufficiently dissolution；
A3, institute's auxiliary agent is added sequentially in reaction kettle, is stirred well to and is uniformly dispersed.
The prior art is compared, the present invention have it is following the utility model has the advantages that
(1) coating is convenient；
(2) coating levelling is good；
(3) coating attachment fastness is good；
(4) it is molded wide adaptability；
(5) coating antifalse effect is prominent.
Specific embodiment
The present invention is described in detail combined with specific embodiments below.Following embodiment will be helpful to the technology of this field
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill of this field
For personnel, without departing from the inventive concept of the premise, various modifications and improvements can be made.These belong to the present invention
Protection scope.
Embodiment 1
The multifunctional coating composition for polyethylene candy wrapping film of the present embodiment is using component shown in table 1 and contains
The raw material of amount is prepared；Specific preparation comprises the technical steps that:
(1) by 40 kilograms of ethyl acetates and 20 kilograms of n-butyl acetate investment reaction kettles, 60 DEG C are warming up to；
(2) by 30 kilograms of non-reacted polyamides, 2.5 kilograms of glycidyl ether type epoxy resins, 2.5 kilograms of shrinks
Glyceride type epoxy resin, 4.9 kilograms of low viscosities polyvinyl butyral resin investment reaction kettle in, high-speed stirred 4.0 is small
When, until sufficiently dissolution；
(3) 0.1 kilogram of curing agent is added in reaction kettle, is stirred well to and is uniformly dispersed.
By the directly upper coating machine coating of coating, levelling is good, and coating surface flatness is higher, and molding temperature is 80~95 DEG C,
Molding works well, and the attachment fastness of coating and polyethylene film, vapor deposition aluminium layer is preferable, has the radium-shine rainbow effect of glittering,
Anti-counterfeit recognition function is more prominent.
Embodiment 2
The multifunctional coating composition for polyethylene candy wrapping film of the present embodiment is using component shown in table 1 and contains
The raw material of amount is prepared；Specific preparation comprises the technical steps that:
(1) by 20 kilograms of cyclohexanone, 40 kilograms of n-propyl acetates, 10 kilograms of n-butanol investment reaction kettles, 55 are warming up to
℃；
(2) 6.0 kilograms of non-reacted polyamides, 4.0 kilograms of reactive polyamide resins, 2.0 kilograms of shrinks are sweet
Oily ether type epoxy resins, 4.0 kilograms of glycidyl ester epoxy resins, 2.0 kilograms of glycidyl amine epoxy resins, 9.0 public affairs
It is high in the polyvinyl butyral resin of jin medium viscosity, the polyvinyl butyral resin investment reaction kettle of 2.5 kilograms of low viscosities
Speed stirring 2.5 hours, until sufficiently dissolution；
(3) 0.2 kilogram of levelling agent, 0.3 kilogram of curing agent are added sequentially in reaction kettle, it is equal is stirred well to dispersion
It is even.
By the directly upper coating machine coating of coating, levelling is good, and coating surface flatness is high, and molding temperature is 70~80 DEG C, mould
Pressure works well, and the attachment fastness of coating and polyethylene film, vapor deposition aluminium layer is good, has the radium-shine rainbow effect of glittering, anti-fake
Identification function is prominent.
Embodiment 3
The multifunctional coating composition for polyethylene candy wrapping film of the present embodiment is using component shown in table 1 and contains
The raw material of amount is prepared；Specific preparation comprises the technical steps that:
(1) 10 kilograms of cyclohexanone, 20 kilograms of ethyl acetates, 25 kilograms of n-propyl acetates, 10 kilograms of n-butyl acetates are thrown
Enter in reaction kettle, is warming up to 60 DEG C；
(2) 8.2 kilograms of non-reacted polyamides, 8.2 kilograms of reactive polyamide resins, 3.2 kilograms of shrinks are sweet
Oily ether type epoxy resins, 1.6 kilograms of glycidyl ester epoxy resins, 1.6 kilograms of glycidyl amine epoxy resins, 8.0 public affairs
It is high in the polyvinyl butyral resin of jin medium viscosity, the polyvinyl butyral resin investment reaction kettle of 4.0 kilograms of low viscosities
Speed stirring 3.0 hours, until sufficiently dissolution；
(3) 0.1 kilogram of slipping agent, 0.1 kilogram of curing agent are added sequentially in reaction kettle, it is equal is stirred well to dispersion
It is even.
By the directly upper coating machine coating of coating, levelling is good, and coating surface flatness is higher, and molding temperature is 75~85 DEG C,
Molding works well, and the attachment fastness of coating and polyethylene film, vapor deposition aluminium layer is preferable, has the radium-shine rainbow effect of glittering,
Anti-counterfeit recognition function is more prominent.
Embodiment 4
The multifunctional coating composition for polyethylene candy wrapping film of the present embodiment is using component shown in table 1 and contains
The raw material of amount is prepared；Specific preparation comprises the technical steps that:
(1) by 34.6 kilograms of ethyl acetates, 30 kilograms of n-propyl acetate investment reaction kettles, 60 DEG C are warming up to；
(2) by 15 kilograms of non-reacted polyamides, 5.0 kilograms of reactive polyamide resins, 2.3 kilograms of glycidols
Ether type epoxy resins, 2.3 kilograms of glycidyl ester epoxy resins, 2.4 kilograms of glycidyl amine epoxy resins, 4.0 kilograms
The polyvinyl butyral resin of medium viscosity, 4.0 kilograms of low viscosities polyvinyl butyral resin investment reaction kettle in, high speed
Stirring 3.5 hours, until sufficiently dissolution；
(3) 0.1 kilogram of levelling agent, 0.2 kilogram of curing agent, 0.1 kilogram of defoaming agent are added sequentially in reaction kettle, sufficiently
Stirring is to being uniformly dispersed.
By the directly upper coating machine coating of coating, levelling is good, and coating surface flatness is high, and molding temperature is 85~90 DEG C, mould
Pressure works well, and the attachment fastness of coating and polyethylene film, vapor deposition aluminium layer is good, has the radium-shine rainbow effect of glittering, anti-fake
Identification function is prominent.
Embodiment 5
The multifunctional coating composition for polyethylene candy wrapping film of the present embodiment is using component shown in table 1 and contains
The raw material of amount is prepared；Specific preparation comprises the technical steps that:
(1) by 55 kilograms of n-propyl acetates, 15.2 kilograms of n-butanol investment reaction kettles, 55 DEG C are warming up to；
(2) by 10 kilograms of non-reacted polyamides, 7.7 kilograms of reactive polyamide resins, 1.3 kilograms of glycidols
Ether type epoxy resins, 2.6 kilograms of glycidyl ester epoxy resins, 3.9 kilograms of glycidyl amine epoxy resins, 3.0 kilograms
The polyvinyl butyral resin of medium viscosity, 1.0 kilograms of low viscosities polyvinyl butyral resin investment reaction kettle in, high speed
Stirring 3.5 hours, until sufficiently dissolution；
(3) 0.2 kilogram of slipping agent, 0.1 kilogram of defoaming agent are added sequentially in reaction kettle, it is equal is stirred well to dispersion
It is even.
By the directly upper coating machine coating of coating, levelling is good, and coating surface flatness is high, and molding temperature is 80~85 DEG C, mould
Pressure works well, and the attachment fastness of coating and polyethylene film, vapor deposition aluminium layer is good, has the radium-shine rainbow effect of glittering, anti-fake
Identification function is prominent.
Embodiment 6
The multifunctional coating composition for polyethylene candy wrapping film of the present embodiment is using component shown in table 1 and contains
The raw material of amount is prepared；Specific preparation comprises the technical steps that:
(1) 15 kilograms of cyclohexanone, 20 kilograms of ethyl acetates, 10 kilograms of n-butanols, 25 kilograms of n-butyl acetate investments are anti-
It answers in kettle, is warming up to 60 DEG C；
(2) by 5 kilograms of non-reacted polyamides, 10 kilograms of reactive polyamide resins, 1.0 kilograms of glycidol ethers
Based epoxy resin, 1.0 kilograms of glycidyl ester epoxy resins, 3.0 kilograms of glycidyl amine epoxy resins, in 8.0 kilograms
The polyvinyl butyral resin of viscosity, 1.7 kilograms of low viscosities polyvinyl butyral resin investment reaction kettle in, high-speed stirring
It mixes 3.0 hours, until sufficiently dissolution；
(3) 0.1 kilogram of levelling agent, 0.1 kilogram of curing agent, 0.1 kilogram of slipping agent are added sequentially in reaction kettle, sufficiently
Stirring is to being uniformly dispersed.
By the directly upper coating machine coating of coating, levelling is good, and coating surface flatness is higher, and molding temperature is 75~80 DEG C,
Molding works well, and the attachment fastness of coating and polyethylene film, vapor deposition aluminium layer is preferable, has the radium-shine rainbow effect of glittering,
Anti-counterfeit recognition function is more prominent.
Comparative example 1
The multifunctional coating composition for polyethylene candy wrapping film of this comparative example is using component shown in table 1 and contains
The raw material of amount is prepared；Specific preparation comprises the technical steps that:
(1) by 42.9 kilograms of ethyl acetates and 20 kilograms of n-butyl acetate investment reaction kettles, 60 DEG C are warming up to；
(2) by 30 kilograms of non-reacted polyamides, 2.5 kilograms of glycidyl ether type epoxy resins, 2.5 kilograms of shrinks
Glyceride type epoxy resin, 2.0 kilograms of low viscosities polyvinyl butyral resin investment reaction kettle in, high-speed stirred 4.0 is small
When, until sufficiently dissolution；
(3) 0.1 kilogram of curing agent is added in reaction kettle, is stirred well to and is uniformly dispersed.
By the directly upper coating machine coating of coating, levelling is poor, and coating surface flatness is low, and when molding nickel version grating occurs and is blocked
The attachment fastness of the problem of plug, coating and polyethylene film, vapor deposition aluminium layer are general, and radium-shine rainbow effect is dim, anti-counterfeit recognition function
It can be fuzzy.
Comparative example 2
The multifunctional coating composition for polyethylene candy wrapping film of this comparative example is using component shown in table 1 and contains
The raw material of amount is prepared；Specific preparation comprises the technical steps that:
(1) it by 20 kilograms of cyclohexanone, 31.5 kilograms of n-propyl acetates, 10 kilograms of n-butanol investment reaction kettles, is warming up to
55℃；
(2) 6.0 kilograms of non-reacted polyamides, 4.0 kilograms of reactive polyamide resins, 2.0 kilograms of shrinks are sweet
Oily ether type epoxy resins, 4.0 kilograms of glycidyl ester epoxy resins, 2.0 kilograms of glycidyl amine epoxy resins, 16 kilograms
The polyvinyl butyral resin of medium viscosity, 4.0 kilograms of low viscosities polyvinyl butyral resin investment reaction kettle in, high speed
Stirring 2.5 hours, until sufficiently dissolution；
(3) 0.2 kilogram of levelling agent, 0.3 kilogram of curing agent are added sequentially in reaction kettle, it is equal is stirred well to dispersion
It is even.
By the directly upper coating machine coating of coating, levelling is poor, and coating surface flatness is low, occurs when molding that coating is viscous to bond to nickel
In version, causes repeatedly to shut down in mold process and wipe version, production efficiency is low, and the attachment fastness of coating and polyethylene film is bad, a
There is the separation of coating and polyethylene film, radium-shine rainbow effect poor with the attachment fastness of aluminium layer after the AM aluminum metallization of surface in other position
Fruit is dim, anti-counterfeit recognition indistinct usage.
Comparative example 3
The multifunctional coating composition for polyethylene candy wrapping film of this comparative example is using component shown in table 1 and contains
The raw material of amount is prepared；Specific preparation comprises the technical steps that:
(1) 10 kilograms of cyclohexanone, 20 kilograms of ethyl acetates, 20 kilograms of n-propyl acetates, 10 kilograms of n-butyl acetates are thrown
Enter in reaction kettle, is warming up to 60 DEG C；
(2) 8.2 kilograms of non-reacted polyamides, 8.2 kilograms of reactive polyamide resins, 6.0 kilograms of shrinks are sweet
Oily ether type epoxy resins, 3.0 kilograms of glycidyl ester epoxy resins, 3.0 kilograms of glycidyl amine epoxy resins, 8.0 public affairs
It is high in the polyvinyl butyral resin of jin medium viscosity, the polyvinyl butyral resin investment reaction kettle of 4.0 kilograms of low viscosities
Speed stirring 3.0 hours, until sufficiently dissolution；
(3) 0.1 kilogram of slipping agent, 0.1 kilogram of curing agent are added sequentially in reaction kettle, it is equal is stirred well to dispersion
It is even.
By the directly upper coating machine coating of coating, levelling is poor, and coating surface flatness is low, molding temperature narrow range, adjusts tired
The attachment fastness of difficulty, coating and polyethylene film, vapor deposition aluminium layer is general, radium-shine rainbow luminance difference, anti-counterfeit recognition indistinct usage.
Comparative example 4
Existing two-component coating on the market, if the 928A product in day is raised in Jiangsu, coating is easy to appear viscous version and asks when molding
Topic, causes nickel version grating to be clogged by coating, and holo-rainbow effect is poor, and nickel version is not easy to clean clean, and plate change frequency is high, causes
Entire production efficiency is low, and production cost greatly improves.
Table 1
Comparative example 1 the difference from embodiment 1 is that, the content mistake of polyvinyl butyral resin in composite paint system
It is low, it is 2.06%；Polyamide, the content of epoxy resin are higher, respectively 30.9%, 5.15%, the levelling effect of comparative example 1
Fruit, flatness, attachment fastness, anti-counterfeit recognition performance etc. occur significantly declining compared with embodiment 1；Comparative example 2 and embodiment 2
Difference is that the too high levels of polyvinyl butyral resin in composition system are 18.4%, polyamide, asphalt mixtures modified by epoxy resin
The content of rouge is lower, respectively 9.22%, 7.37%, the levelling effect of comparative example 2, flatness, attachment fastness, anti-counterfeit recognition
Energy is equal, is also decreased obviously compared with embodiment 2, or even coating occur and adhere in nickel version；The difference of comparative example 3 and embodiment 3 exists
It in, too high levels of epoxy resin in composition system, is 11.4%, polyamide, polyvinyl butyral resin contain
Lower, respectively 15.5%, 11.4%, levelling effect, flatness, attachment fastness, the anti-counterfeit recognition performance of comparative example 3 etc. are measured,
It is also decreased obviously compared with embodiment 3, or even molding temperature occur narrow, it is difficult to the problem of adjusting.Therefore, by embodiment 1,2,
3 and comparative example 1,2,3 comparison it is found that main component-polyamide, epoxy resin and poly- second in present composition system
Enol butyral resin is levelling effect that composition of the invention could be made to have had, smooth under certain proportion relation
Degree, attachment fastness, anti-counterfeit recognition performance and radium-shine rainbow effect outstanding.
Embodiment 2,4,5 and embodiment 1,3,6 are compared it is found that it is (1~3) that polyamide, which selects weight ratio:
The non-reacted polyamide of (1~2), the mixture of reactive polyamide resin and epoxy resin selection weight ratio are
1:(1~2): glycidyl ether type epoxy resin, glycidyl ester epoxy resin, the glycidol amine asphalt mixtures modified by epoxy resin of (1~3)
It is (1~4): the polyvinyl butyral tree of 1 medium viscosity that the mixture and polyvinyl butyral resin of rouge, which select weight ratio,
Rouge, low viscosity polyvinyl butyral resin mixture in the case where, enable to composition system of the invention to have most
Good comprehensive performance really can thoroughly solve dope layer under conventional formulation technique and adhere in nickel version, to block grating
The various problems such as cause radium-shine rainbow effect imperfect.
There are many concrete application approach of the present invention, the above is only a preferred embodiment of the present invention.More than it should be pointed out that
Embodiment is merely to illustrate the present invention, and the protection scope being not intended to restrict the invention.For the common skill of the art
For art personnel, without departing from the principle of the present invention, several improvement can also be made, these improvement also should be regarded as this hair
Bright protection scope.
Claims (9)
1. a kind of multifunctional coating for polyethylene candy wrapping film, which is characterized in that including following weight percentage
Each component:
The polyvinyl butyral resin includes the polyvinyl alcohol contracting of the polyvinyl butyral resin of medium viscosity, low viscosity
The mixture of one or both of butyral resin；The viscosity of the polyvinyl butyral resin of the medium viscosity be 90~
240mpa.s, the viscosity of the polyvinyl butyral resin of the low viscosity are 9~55mpa.s.
2. being used for the multifunctional coating of polyethylene candy wrapping film as described in claim 1, which is characterized in that the polyamide
Resin includes the mixture of one or both of non-reacted polyamide, reactive polyamide resin.
3. being used for the multifunctional coating of polyethylene candy wrapping film as claimed in claim 2, which is characterized in that the polyamide
Resin includes that weight ratio is (1~3): non-reacted polyamide, the reactive polyamide resin of (0~2).
4. being used for the multifunctional coating of polyethylene candy wrapping film as described in claim 1, which is characterized in that the epoxy
Resin includes glycidyl ether type epoxy resin, glycidyl ester epoxy resin, one in glycidyl amine epoxy resin
Kind or several mixtures.
5. being used for the multifunctional coating of polyethylene candy wrapping film as claimed in claim 4, which is characterized in that the asphalt mixtures modified by epoxy resin
Rouge includes that weight ratio is (1~2): (1~4): glycidyl ether type epoxy resin, the glycidol esters asphalt mixtures modified by epoxy resin of (0~3)
Rouge, glycidyl amine epoxy resin.
6. being used for the multifunctional coating of polyethylene candy wrapping film as described in claim 1, which is characterized in that the polyethylene
Polyvinyl butyral resin includes that weight ratio is (0~4): the polyvinyl butyral resin of the medium viscosity of (1~2) and gathering for low viscosity
Vinyl butyral resin.
7. being used for the multifunctional coating of polyethylene candy wrapping film as described in claim 1, which is characterized in that the auxiliary agent
Including one or more of levelling agent, curing agent, slipping agent, defoaming agent.
8. being used for the multifunctional coating of polyethylene candy wrapping film as described in claim 1, which is characterized in that the solvent
Including at least two in cyclohexanone, ethyl acetate, n-propyl acetate, n-butanol, n-butyl acetate.
9. a kind of preparation method for the multifunctional coating of polyethylene candy wrapping film as described in claim 1, feature
It is, comprising the following steps:
A1, each component is weighed by weight percentage, solvent is put into reaction kettle, is warming up to 55~60 DEG C；
A2, again by polyamide, epoxy resin, polyvinyl butyral resin investment reaction kettle in, high-speed stirred 2.5~
4.0 hours, until sufficiently dissolution；
A3, institute's auxiliary agent is added sequentially in reaction kettle, is stirred well to and is uniformly dispersed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611117856.2A CN106675384B (en) | 2016-12-07 | 2016-12-07 | Multifunctional coating for polyethylene candy wrapping film |
Applications Claiming Priority (1)
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