CN106833435B - A kind of easily peelable hot melt adhesive easily takes off formula packaging ring mark and its application - Google Patents
A kind of easily peelable hot melt adhesive easily takes off formula packaging ring mark and its application Download PDFInfo
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- CN106833435B CN106833435B CN201710060786.XA CN201710060786A CN106833435B CN 106833435 B CN106833435 B CN 106833435B CN 201710060786 A CN201710060786 A CN 201710060786A CN 106833435 B CN106833435 B CN 106833435B
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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
- C09J123/00—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers
- C09J123/02—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers not modified by chemical after-treatment
- C09J123/04—Homopolymers or copolymers of ethene
- C09J123/08—Copolymers of ethene
- C09J123/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
- C09J123/0853—Vinylacetate
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/21—Paper; Textile fabrics
-
- 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
- C09J7/00—Adhesives in the form of films or foils
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
-
- 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
-
- 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
- C09J2203/00—Applications of adhesives in processes or use of adhesives in the form of films or foils
- C09J2203/334—Applications of adhesives in processes or use of adhesives in the form of films or foils as a label
-
- 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
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
- C09J2301/12—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers
- C09J2301/122—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers the adhesive layer being present only on one side of the carrier, e.g. single-sided adhesive tape
-
- 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
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/30—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier
-
- 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
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/30—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier
- C09J2301/304—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier the adhesive being heat-activatable, i.e. not tacky at temperatures inferior to 30°C
-
- 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
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/40—Additional features of adhesives in the form of films or foils characterized by the presence of essential components
- C09J2301/408—Additional features of adhesives in the form of films or foils characterized by the presence of essential components additives as essential feature of the adhesive layer
Abstract
The invention discloses a kind of easily peelable hot melt adhesive, main component includes 50~70 parts of ethylene-vinyl acetate copolymer, 6~15 parts of tackifying resin, 7~14 parts of wax, 0.2~3 part of antioxidant and 0.5~5 part of toughener, wax includes polyethylene wax and pentaerythritol stearate, for the sum of content of polyethylene wax and pentaerythritol stearate not less than 95%, the weight ratio of polyethylene wax and pentaerythritol stearate is 7:(0.8~1.5 in wax).The easily peelable hot melt adhesive reduces the peel strength of hot melt adhesive by the way that pentaerythritol stearate is added, and the addition of said components influences the first viscous, hold viscosity energy of hot melt adhesive smaller, can be used as easily to take off ring target and paste and uses.The invention also discloses a kind of easily to take off formula packaging ring mark and its application comprising easily peelable hot melt adhesive coating.
Description
Technical field
The present invention relates to Food Packaging technology fields, and in particular to a kind of easily peelable hot melt adhesive, easily take off formula packaging ring mark and
It is applied.
Background technique
Currently, the ring mark structure of food packaging from outside to inside be respectively light oil reservoir, ink layer, paper layer and hot melt adhesive layer,
It is designated as example to join the ring of cup Yoghourt, completely can not completely be removed with after the heat-sealing of PS (polystyrene) cup because paper is easy to tear.
In order to reach the technical effect for completely separating ring mark from box surface, improved technical solution such as 103921477 A of CN is public
A kind of release paper labels of water and its preparation process opened, concrete scheme are to be coated with water-soluble glue, water in paper surface
Dissolubility glue is selected from one or more of starch, converted starch, polyacrylamide, plant gum or sodium alginate.But it is real
In use, Yoghourt is after removing and placing a period of time in refrigerator, cartridge outer surface can condense to form droplet on border, above-mentioned droplet with
Glue contact swelling, is unfavorable for bonding during edible.
Improved technical solution replaces above-mentioned water-soluble glue using easily peelable hot melt adhesive, in 104087201 A of CN
A kind of easily peelable hot melt adhesive is disclosed, composition is calculated by weight as ethylene-vinyl acetate copolymer 64-71, triterpene soap
Glycosides 1-2, sodium phosphate 0.1-0.3, cresyl diphenyl phosphate 1-2, zinc ricinate 0.2-0.4, polymaleic anhydride 1-2, molybdenum
Sour ammonium 1-2, atoleine 10-13, glycerin polyoxyethylene ether cocounut oil acid esters 0.3-1, Imarcaptoacetate dioctyltin
0.1-0.2, double Lauryl Alcohol ester 2-3, adhesive aid 7-10.The weatherability of above-mentioned hot melt adhesive is poor, and temperature reduction holds it
Viscosity can influence obviously, and join cup Yoghourt needs and deposit in low temperature environment for a long time, therefore be not suitable for joining cup Yoghourt
In packaging.It is therefore desirable to carry out formula improvement to low temperature resistant easily peelable hot melt adhesive in the prior art.
Summary of the invention
It is an object of the invention to overcome defect existing in the prior art, it is good easily to provide a kind of low temperature hold viscosity energy
Remove hot melt adhesive.
In order to realize the above technical effect, the technical solution of the present invention is as follows: a kind of easily peelable hot melt adhesive, which is characterized in that main
Wanting component includes 50~70 parts of ethylene-vinyl acetate copolymer, 6~15 parts of tackifying resin, 7~14 parts of wax, antioxidant 0.2~3
Part and 0.5~5 part of toughener, wax includes polyethylene wax and pentaerythritol stearate, and polyethylene wax and pentaerythrite are hard in wax
For the sum of content of resin acid ester not less than 95%, the weight ratio of polyethylene wax and pentaerythritol stearate is 7:(0.8~1.5).
Pentaerythritol stearate is added in wax component in above scheme, not merely with its dispersion performance and thickening tackifying
Can, pentaerythritol stearate chain alkyl side chain forms crystalline texture on hot melt adhesive film surface, improves the removing of hot melt adhesive
Intensity, in the case that placing one section of rear surface under the box body normal temperature condition especially after refrigeration has condensing drip, removing is strong
Degree decline is obvious, and initial cohesiveness for hot melt adhesive and hold viscosity energy influence it is unobvious.
Preferred technical solution is that pentaerythritol stearate is double selected from pentaerythritol monostearate and pentaerythrite
At least one of stearate.The alkyl of above two pentaerythritol stearate is straight chain saturation alkane, the compatibility with EVA
Good, the polar group hydroxyl in molecular structure participates in crosslinking, and the compatibility of hot melt adhesive system can be improved.
Further preferred technical solution is that pentaerythritol stearate is pentaerythritol monostearate and pentaerythrite
Double stearates are composed, in pentaerythritol stearate the weight percent of the double stearates of pentaerythrite be 65~
80%.
In order to improve the initial cohesiveness and hold viscosity energy containing pentaerythritol stearate hot melt adhesive, preferred technical solution
For tackifying resin is rosin resin and is composed selected from least one of rosin polyol ester and rosin glycerides, is viscosified
The weight percent of rosin resin is 70~85% in resin.The addition of rosin polyol ester and rosin glycerides can improve hot melt
Mobility in glue production process, convenient for the dispersion and blending of hot melt adhesive component, being blended with rosin resin can increase and by viscous base
The wetability of material improves initial cohesiveness.
In order to further decrease the peel strength of hot melt adhesive, preferred technical solution is, the acid value of rosin resin is 145~
160mgKOH/g。
In order to optimize the tensile strength of hot melt adhesive film, preferred technical solution is, ethylene-vinyl acetate copolymer mainly by
The polylactic acid blend that VA content is 15~20% is ethene improved-acetate ethylene copolymer and VA content be 40~50% ethylene-
Acetate ethylene copolymer component is blended, polylactic acid blend is ethene improved-acetate ethylene copolymer and ethene-vinyl acetate it is total
The weight ratio of copolymer component is (0.2~0.3): 1.
In order to advanced optimize the tensile strength of hot melt adhesive film, preferred technical solution is that the blending ratio of polylactic acid is
30~45%.Polylactic acid and ethylene-vinyl acetate copolymer (EVA) form primary cross-linked structure in melt blending,
The carboxyl end group of polylactic acid can also form end hydroxyl with the hydroxyl condensation of pentaerythritol monostearate or the double stearates of pentaerythrite
Base condensation polymer, terminal hydroxy group condensation polymer in the medium acid, be easier under the action of alkali that free hydrolytic cleavage occurs, realization ring target can
Batch hydrolysis removing.
Another object of the present invention also a kind of is easily taking off formula packaging ring mark with providing, which is characterized in that from outside to inside successively
The easily peelable glue-line to be formed is coated with including light oil reservoir, printing ink layer, paper layer and such as above-mentioned easily peelable hot melt adhesive.Above-mentioned packet
It is easily peelable to fill ring mark, the preceding achievable label of equipment for prepn. of yoghurt waste processing is separated with PS glasss of papers and classify recycling and recycling.It is thin
The increase of film enhancement layer not only facilitates ring mark and completely separates, and the side wall for being glued box body can also suitably be thinned or using foaming
PS reduces box body cost.The optional material of above-mentioned film enhancement layer includes that polyester, polyolefins, polyamide, polyvinyl chloride etc. are thin
Film.
Preferred technical solution is to be provided with film enhancement layer between paper layer and easily peelable glue-line.Further, gloss oil
Printing ink layer between layer and paper layer is the first printing ink layer, and second is additionally provided between paper layer and film enhancement layer
Printing ink layer.Following functions may be implemented in the ring mark of above structure: literal, crossword puzzle of positive and negative printing etc. can be collected, and be increased
Entertaining；The back side is by information such as printed patterns text, two dimensional code, codings, it can be achieved that promotion and antiforge function.
Another object of the present invention also with a kind of application easily taking off formula packaging ring and being marked in article packaging, the object are provided
Product include canned, box-packed food.
The advantages and beneficial effects of the present invention are:
The easily peelable hot melt adhesive reduces the peel strength of hot melt adhesive, said components by the way that pentaerythritol stearate is added
Addition the first viscous, hold viscosity energy of hot melt adhesive is influenced smaller, can be used as easily to take off ring target and paste and use.
Specific embodiment
With reference to embodiment, the specific embodiment of the present invention is further described.Following embodiment is only used for more
Add and clearly demonstrate technical solution of the present invention, and not intended to limit the protection scope of the present invention.
[antioxidant]
Antioxidant can choose EVA hot-melt adhesive antioxidant commonly used in the prior art, such as 2,6- three-level butyl -4- methyl
Phenol, bis- (3,5- three-level butyl -4- hydroxy phenyl) thioethers, four (β-(3,5- three-level butyl -4- hydroxy phenyl) propionic acid) seasons penta
Appoint at least one in four alcohol esters, three (2,4- di-tert-butyl-phenyl) phosphite esters.
[toughener]
Toughener can choose EVA hot-melt adhesive toughener commonly used in the prior art, such as polyisobutene, ethylene-propylene
Sour methyl terpolymer etc..
[other components]
Filler such as calcium carbonate, talcum powder, silica, titanium dioxide etc. can also be increased, in hot melt adhesive to increase heat
Melten gel is interstitial.
Embodiment 1
The easily peelable hot melt adhesive composition of embodiment 1-3 see the table below:
Easily peelable hot melt adhesive component wax in embodiment 1-3 by polyethylene wax and pentaerythritol stearate mixing and
At the weight ratio of polyethylene wax and pentaerythritol stearate is respectively 70:8,14:3 and 7:1.
Embodiment 4
Embodiment 4 and the difference of embodiment 3 are: polyethylene wax and pentaerythrite stearic acid in 4 hot melt adhesive wax of embodiment
The sum of content of ester is 95%, further includes 5% plasticity microwax.
Pentaerythritol stearate in embodiment 1-4 is pentaerythritol tetraoctyl stearate, and tackifying resin is pine
Botany bar gum, the acid value of rosin resin are < 140mgKOH/g；The VA content of ethylene-vinyl acetate copolymer is 40~50%.
Embodiment 5-8
Embodiment 5 is based on embodiment 3, and difference is, pentaerythritol stearate is respectively pentaerythritol monostearate.
Embodiment 6-8 be based on embodiment 3, difference is, pentaerythritol stearate be pentaerythritol monostearate and
The double stearates of pentaerythrite are composed, and the weight percent of the double stearates of pentaerythrite is in pentaerythritol stearate
20%, 65%, 80%.
Embodiment 9-11
Embodiment 9 is based on embodiment 8, and difference is, tackifying resin is that rosin resin and rosin polyol ester are composed,
The weight percent of rosin resin is 70% in tackifying resin.
Embodiment 10 is based on embodiment 8, and difference is, tackifying resin is that rosin resin and rosin glycerides are composed,
The weight percent of rosin resin is 85% in tackifying resin.
Embodiment 11 is based on embodiment 8, and difference is, tackifying resin is rosin resin and rosin polyol ester and rosin
Glyceride is composed, and the weight percent of rosin resin is 77% in tackifying resin.Rosin polyol ester and rosin glycerides
Weight ratio be 1:1.
Embodiment 12
Embodiment 12 is based on embodiment 11, and difference is, the acid value of rosin resin is 145~160mgKOH/g.
Embodiment 13-15
Embodiment 13-15 is based on embodiment 12, and difference is, ethylene-vinyl acetate copolymer is mainly 15 by VA content
~20% polylactic acid blend is ethene improved-acetate ethylene copolymer and VA content be 40~50% ethene-vinyl acetate it is total
Copolymer component is blended, and polylactic acid blend is ethene improved-acetate ethylene copolymer and ethylene-vinyl acetate copolymer component
Weight ratio is respectively 1:5,3:10 and 1:4, wherein and the polylactic acid blend of embodiment 15 is ethene improved-and acetate ethylene copolymer is
Polylactic acid/ethylene-vinyl acetate copolymer blend, the blending ratio of polylactic acid are 70%.
Embodiment 16-17
Embodiment 16-17 is based on embodiment 15, and difference is, the blending ratio of polylactic acid is respectively 30% and 45%.
Comparative example
Comparative example 1 and the difference of example 1 group point are, are free of pentaerythritol stearate.
Comparative example 2 is using hot melt adhesive component described in background technology part: 64 parts of ethylene-vinyl acetate copolymer, triterpene
1 part of saponin(e, 0.1 part of sodium phosphate, 1 part of cresyl diphenyl phosphate, 0.2 part of zinc ricinate, 1 part of polymaleic anhydride, molybdic acid
1 part of ammonium, 10 parts of atoleine, 0.3 part of glycerin polyoxyethylene ether cocounut oil acid esters, Imarcaptoacetate dioctyltin 0.1
Part, 2 parts of double Lauryl Alcohol esters, 7 parts of adhesive aid, bonding additives are made according to document with when method.Performance test and comparison:
The heating of hot melt adhesive obtained by embodiment 1-17 is mutually synthermal, it is coated on light oil reservoir, printing ink layer, paper
The ring mark film enhancement layer surface of layer, film enhancement layer, coating thickness are 10 μm.
Above-mentioned ring target peel strength is detected according to EVA hot-melt adhesive examination criteria, tack, holds viscosity, lower temperature resistance, glue
Hydrolysis peeling effect under the conditions of film stretching intensity and 5% sodium hydroxide lye.
Table one: peel strength and resistance to low temperature (comparing embodiment 1-8 and comparative example)
Table two: it tack and holds sticky (comparative example 8-12)
| Embodiment | Tack | Hold viscosity |
| Embodiment 8 | In | In |
| Embodiment 9 | It is good | It is good |
| Embodiment 10 | It is good | It is good |
| Embodiment 11 | It is good | It is excellent |
| Embodiment 12 | It is excellent | It is excellent |
Table three: the tensile strength and ring target hydrolysis stripping performance (comparative example 12-17) of hot melt adhesive film are compared
Comparative example 1 forms compareing for addition pentaerythritol stearate with embodiment 1 in table 1, and comparative example 2 uses existing skill
Known hot melt adhesive component, performance test results are shown in art, the lower temperature resistance of improved technical solution embodiment 1-8 hot melt adhesive
Can be good, the further preferred resistance to low temperature that can also improve hot melt adhesive of pentaerythritol stearate, suitably reduction hot melt adhesive
The peel strength of layer.
In table 2 embodiment 9-12 be based on embodiment 8, tackifying resin it is further select in contrast, tackifying resin into
The selection of one step helps to improve the tack of hot melt adhesive and holds viscosity.
Embodiment 13-17 is based on embodiment 12 in table 3, the further selection of EVA and be blended material preferably to hot melt adhesive
There is the tensile strength and hydrolysis peel strength of film apparent influence, especially polylactic acid blend ratio ring mark is hydrolyzed and is removed
The improvement of intensity is obvious, facilitates those skilled in the art and determines suitable easily peelable thermosol formula.
Easily peelable hot melt adhesive can also be coated directly onto the ring mark that stepped construction is light oil reservoir, printing ink layer, paper layer
Paper layer surface to realize basic easy peelability, and can guarantee that ring mark is shelled in paper layer surface setting film enhancement layer
From it is complete.Further, the printing ink layer between light oil reservoir and paper layer is the first printing ink layer, paper layer and film
The second printing ink layer is additionally provided between enhancement layer.The effect of second ink printed layer is that abundant ring target is functional,
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvements and modifications can also be made, these improvements and modifications
Also it should be regarded as protection scope of the present invention.
Claims (2)
1. a kind of easily peelable hot melt adhesive, which is characterized in that main component includes 50~70 parts of ethylene-vinyl acetate copolymer, increases
6~15 parts of viscosity resin, 7~14 parts of wax, 0.2~3 part of antioxidant and 0.5~5 part of toughener, wax includes polyethylene wax and Ji Wusi
Alcohol stearate, the sum of content of polyethylene wax and pentaerythritol stearate is not less than 95% in wax, polyethylene wax and Ji Wusi
The weight ratio of alcohol stearate is 7:(0.8~1.5), pentaerythritol stearate is pentaerythritol monostearate and Ji Wusi
The double stearates of alcohol are composed, in pentaerythritol stearate the weight percent of the double stearates of pentaerythrite be 65~
80%, tackifying resin is rosin resin and is composed selected from least one of rosin polyol ester and rosin glycerides, is viscosified
The weight percent of rosin resin is 70~85% in resin, and the acid value of rosin resin is 145~160mgKOH/g, ethyl vinyl acetate
The polylactic acid blend that ethylene copolymer is mainly 15~20% by VA content is ethene improved-and acetate ethylene copolymer and VA content be
40~50% ethylene-vinyl acetate copolymer component is blended, polylactic acid blend is ethene improved-acetate ethylene copolymer with
The weight ratio of ethylene-vinyl acetate copolymer component is (0.2~0.3): 1, the blending ratio of polylactic acid is 30~45%.
2. a kind of easily take off formula packaging ring mark, which is characterized in that from outside to inside successively include light oil reservoir, printing ink layer, paper layer
It is coated with the easily peelable glue-line to be formed with easily peelable hot melt adhesive as described in claim 1, is equipped between the easily peelable glue-line of paper layer
Film enhancement layer.
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| CN201710060786.XA CN106833435B (en) | 2017-01-25 | 2017-01-25 | A kind of easily peelable hot melt adhesive easily takes off formula packaging ring mark and its application |
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| CN201710060786.XA CN106833435B (en) | 2017-01-25 | 2017-01-25 | A kind of easily peelable hot melt adhesive easily takes off formula packaging ring mark and its application |
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| CN106833435B true CN106833435B (en) | 2019-03-08 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108641655A (en) * | 2018-05-09 | 2018-10-12 | 佛山市三水日邦化工有限公司 | A kind of fire-retardant EVA hot-melt adhesive |
| CN111944449A (en) * | 2020-07-29 | 2020-11-17 | 安庆市航海印务有限公司 | Environment-friendly automatic labeling and manufacturing method thereof |
| CN111945477B (en) * | 2020-08-14 | 2022-07-05 | 上海紫华薄膜科技有限公司 | Release heat-sealing packaging paper and manufacturing method thereof |
| CN116355557B (en) * | 2023-03-16 | 2024-01-26 | 广东壹诺科技股份有限公司 | Low-temperature hot melt adhesive and preparation method thereof |
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| CN202795899U (en) * | 2012-09-10 | 2013-03-13 | 中国科学院合肥物质科学研究院 | Anti-fake traceable label for agricultural material paper package |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102492375A (en) * | 2011-12-02 | 2012-06-13 | 无锡信达胶脂材料有限公司 | Hot melt adhesive for bonding polyolefin plastic |
| CN202795899U (en) * | 2012-09-10 | 2013-03-13 | 中国科学院合肥物质科学研究院 | Anti-fake traceable label for agricultural material paper package |
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| Publication number | Publication date |
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| CN106833435A (en) | 2017-06-13 |
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