CN109897574A - A kind of pressure-sensitive glue and preparation method thereof, adhesive label and preparation method thereof - Google Patents
A kind of pressure-sensitive glue and preparation method thereof, adhesive label and preparation method thereof Download PDFInfo
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- CN109897574A CN109897574A CN201711295086.5A CN201711295086A CN109897574A CN 109897574 A CN109897574 A CN 109897574A CN 201711295086 A CN201711295086 A CN 201711295086A CN 109897574 A CN109897574 A CN 109897574A
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Abstract
The invention belongs to label and its preparation technical field, a kind of pressure-sensitive glue and preparation method thereof, adhesive label and preparation method thereof are provided；The preparation method of the pressure-sensitive glue includes: that under agitation, the contact of the aqueous acrylic emulsion, solvent misture, wetting agent, defoaming agent and deionized water is mixed, and adjusting glue viscosity is 200-400cps.The adhesive label includes substrate layer (1), pressure-sensitive adhesive layer (2) and protective layer (3)；The pressure-sensitive adhesive layer (2) is the coated gained of pressure-sensitive glue made from pressure-sensitive glue as described above or preparation method as described above.The resulting adhesive label of the present invention has three power balanced, and peel strength and holding power are excellent, and ageing-resistant performance is excellent.
Description
Technical field
The invention belongs to label and its preparation technical field more particularly to a kind of pressure-sensitive glue and preparation method thereof, do not do
Glue label and preparation method thereof.
Background technique
It is well known that adhesive for label product identification, packaging, in terms of play an important role.In trademark adhesive
Numerous application fields in, it is most common no more than being the permanent common label for using class, such as the appearance packet on daily chemical products
The label etc. in energy consumption mark, supermarket shelves on dress, electric appliance.
The patent document of Publication No. CN105505235A reports a kind of adhesive for label, although the adhesive
With excellent initial bonding strength and resistance to ag(e)ing, but its adhesion strength (peel strength) and retentivity (holding power) be not strong, especially
The adhesive uses toluene during the preparation process, will cause permanent injury to environment and human body.
The patent document of Publication No. CN105969273A reports a kind of environment-friendly type hot melt pressure sensitive adhesive, which passes through
C5 Petropols, plasticizer, Styrene-Butadiene-Styrene Block Copolymer, auxiliary agent are prepared by mixing into, and can satisfy environmental protection
It is required that but its adhesion strength (peel strength) is relatively low.
Currently, can be frequently seen it is daily used in permanent sticker appearance phenomena such as obviously warping, fall off, this is because
Glue-line in outdoor label is decreased obviously by aged properties under natural environment, or due to glue-line quality itself,
Performance is unqualified to be caused.In the prior art, for three power performances of the adhesive of label or pressure sensitive adhesive, (initial bonding strength, removing are strong
Degree, holding power) it is less desirable, there is also very big problems for ageing-resistant performance；And simultaneously, the trademark adhesive of excellent combination property has portion
It point is prepared by solvent-based adhesive, will use in its preparation process to the harmful substance of environment and human body, this meeting
Environmental pollution is brought, and influences the health of people.
Summary of the invention
It is an object of the present invention to aiming at the problems existing in the prior art, a kind of pressure-sensitive glue and its preparation side are provided
Method also provides and utilizes adhesive label made from the pressure-sensitive glue and preparation method thereof；Using made from the pressure-sensitive glue not
Three power of dry glue label are balanced, and peel strength and hold viscosity energy are excellent.
To achieve the goals above, the present invention provides a kind of pressure-sensitive glue, which uses including following component
Raw material reaction is made, and each component forms as follows by weight:
The pressure-sensitive glue provided according to the present invention, it is preferable that the aqueous acrylic emulsion is the aqueous pressure of pure acrylic acid class
Quick latex solution；
Preferably, pure acrylic acid class water-borne pressure sensitive adhesive lotion is with methyl methacrylate (MMA), n-butyl acrylate
(BA) and one of Isooctyl acrylate monomer (EHA) or it is a variety of be used as main monomer, with hydroxy-ethyl acrylate (HEA), acrylic acid
(AA), one of β-acryloxy propionic (β-CEA), hydroxyethyl methacrylate (HEMA) and methacrylic acid (MAA)
Or it is a variety of as function monomer, it is generated through emulsion polymerization.The quality proportioning of the main monomer and function monomer is 90:
10-99:1.
The preparation process of above-mentioned pure acrylic acid class water-borne pressure sensitive adhesive lotion is referring to application No. is the special of 201610975302.X
Sharp document carries out.
The pressure-sensitive glue provided according to the present invention, it is preferable that the solvent misture is selected from aqueous emulsifying solvent misture.
Preferably, the aqueous emulsifying solvent misture is that polyalcohol is modified natural rosin and emulsifies obtained；Institute
It states polyalcohol and is selected from glycerine and/or pentaerythrite.
It is highly preferred that the aqueous emulsifying solvent misture is selected from Guinox 5861, Guinox 6380 and AQUATACTM E
One of 6180 or a variety of.
The pressure-sensitive glue provided according to the present invention, it is preferable that the wetting agent is selected from polysiloxane-based wetting agent, more preferably
Selected from Siloxane-Oxyalkylene Copolymers class wetting agent；Further preferably selected from one of Tego KL 245 and BYK-349 or two
Kind.
The pressure-sensitive glue provided according to the present invention, it is preferable that the defoaming agent is organic silicon defoaming agent, is more preferably selected from
One of BYK-022, BYK-024 and BYK-028 or a variety of.
It is a further object of the invention to provide a kind of preparation method of pressure-sensitive glue as described above, this method packets
It includes:
Under agitation, by the aqueous acrylic emulsion, solvent misture, wetting agent, defoaming agent and water contact into
Row mixing, adjusting glue viscosity are 200-400cps.
Preferably, method includes the following steps:
Under the conditions of agitator shaft speed is 400-800 revs/min, aqueous acrylic emulsion is mixed with solvent misture, is stirred
It mixes 10-20 minutes；It keeps revolving speed constant, adds defoaming agent, stir 10-15 minutes；It keeps revolving speed constant, adds wetting agent, stir
It mixes 10-15 minutes；Later under the conditions of agitator shaft speed is 300-500 revs/min, water is added, is stirred 15-25 minutes.Herein
Under kind of preparation condition, preferable dispersion can be reached in formula between each component, thus preferably play each component function and
The good bring effect of each component compatibility.
The present invention also provides a kind of adhesive label, which includes: substrate layer 1 and is bonded in substrate layer 1
Pressure-sensitive adhesive layer 2；The pressure-sensitive adhesive layer 2 is pressure-sensitive glue made from pressure-sensitive glue as described above or preparation method as described above
It is made by being coated on the substrate layer 1.
Preferably, the pressure-sensitive adhesive layer 2 with a thickness of 15-30 μm, preferably 18-25 μm.
Preferably, the substrate layer 1 is selected from the PET light film that sided corona treatment is crossed or the BOPP light film that sided corona treatment is crossed.
Preferably, which further includes protective layer 3, and the protective layer 3 is bonded in the pressure-sensitive adhesive layer 2；It is more excellent
Choosing, the protective layer 3 is selected from glaxin release paper or ox-hide release paper.
The present invention also provides a kind of preparation method of adhesive label as described above, the preparation method includes following step
It is rapid:
A, pressure-sensitive glue is coated on the substrate layer 1, is then baked to, obtain the base coated with pressure-sensitive adhesive layer 2
Material layer 1.
Preferably, further include step b, after the sample of step a is cooled to greenhouse protective layer 3 be attached on pressure-sensitive adhesive layer 2.
Preferably, in the step a, the substrate layer 1 is laid on glass plate, it is more excellent by 50-80 μm of bar
It is selected as 60 μm of bar the pressure-sensitive glue is coated on the substrate layer 1.
Preferably, the temperature of the drying is 70-90 DEG C；The time of drying is 3-5 minutes.
Technical solution of the present invention bring excellent effect is:
(1) the pure acrylic acid class water-borne pressure sensitive adhesive lotion used in the present invention and other each components have preferable compatibility, it
Between can act synergistically so that resulting adhesive label has three power balanced, peel strength and hold viscosity energy are excellent
Different feature, and ageing-resistant performance is excellent, can satisfy daily permanent requirement；
(2) preparation method of adhesive label of the present invention, simple process, operational stability are good, can be suitable for big
Large-scale production.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of adhesive label of the present invention.
Above-mentioned figure label is described as follows:
1- substrate layer, 2- pressure-sensitive adhesive layer, 3- protective layer.
Specific embodiment
In order to technical characteristic and content of the invention is understood in detail, it is described in more detail below of the invention excellent
Select embodiment.Although describing the preferred embodiment of the present invention in embodiment, however, it is to be appreciated that can be in a variety of manners
Realize the present invention without that should be limited by the embodiments set forth herein.
One, raw material sources:
1, substrate layer
PET light film, 40 μm of thickness, Qingdao Zhong Zheng packaging material Co., Ltd；
BOPP light film, 25 μm of thickness, Qingdao Zhong Zheng packaging material Co., Ltd；
2, protective layer
Glaxin release paper, white, 80g/m2, 72 μm of thickness, open up diligent industrial equipment Co., Ltd；
Ox-hide release paper, 85g/m2, Dongguan City such as rising sun composite material Co., Ltd；
3, aqueous acrylic emulsion
The preparation process of aqueous acrylic emulsion is as follows: (it is mass parts that number, which is added, in each component)
Main monomer and function monomer are mixed to form mix monomer (amount of monomer of addition is 100 parts) first, then will be mixed
Conjunction monomer, 4 parts of water, 0.5 part of EF800 (anion emulsifier, cyanogen are special), 0.2 part of RS-710 (anion emulsifier, Rhodia) add
Enter into pre-emulsification kettle, be dispersed with stirring 30min, pre-emulsion is made；
80 parts of water, 0.3 part of sodium bicarbonate (buffer) are added in reaction kettle, are dispersed with stirring, by the pre- cream of 4% mass
Change liquid to be added in reaction kettle, increase temperature to 85 DEG C, 0.5 part of ammonium persulfate (initiator) for being dissolved in 10 parts of water, heat preservation is added
Seed emulsion is made in 15min；
Remaining pre-emulsion is dropped evenly in seed emulsion in 4 hours, while being added dropwise in 4h and being dissolved in 10 parts
0.25 part of ammonium persulfate (initiator) of water, keeps the temperature 30min after dripping off；Then 0.2 part of t-butyl peroxy is added into reaction kettle
Change hydrogen, 1 part of arabo-ascorbic acid 10wt% aqueous solution, and keeps the temperature 1h；When being cooled to 40 DEG C or less, filtering and discharging obtains aqueous third
Olefin(e) acid lotion.
(1) pure acrylic acid class water-borne pressure sensitive adhesive lotion I, self-control, with 8 parts of methyl methacrylate MMA, 43 parts of acrylic acid fourths
Ester BA and 45 parts of Isooctyl acrylate monomer EHA is main monomer, 1.5 parts of acrylic acid AA, 1 part of hydroxy-ethyl acrylate HEA and 1.5 parts of β-the third
Alkene propionic β-CEA is made for function monomer emulsion polymerization；
(2) pure acrylic acid class water-borne pressure sensitive adhesive lotion II, self-control, with 5 parts of methyl methacrylate MMA, 90 parts of acrylic acid
Butyl ester BA is main monomer, 1.2 parts of methacrylic acid MAA, 1.6 parts of hydroxyethyl methacrylate HEMA, 2.2 parts of β-acryloxies
Propionic acid β-CEA is made for function monomer emulsion polymerization；
(3) pure acrylic acid class water-borne pressure sensitive adhesive lotion III, self-control, with 6 parts of methyl methacrylate MMA, 40 acrylic acid fourths
Ester BA, 50 Isooctyl acrylate monomer EHA are main monomer, 1.5 parts of methacrylic acid MAA, 1 part of hydroxy-ethyl acrylate HEA, 1.5 parts of β-
Acryloxy propionic β-CEA is made for function monomer emulsion polymerization；
4, solvent misture
Guinox 5861, Wuzhou Fei Zhuo forestry products Industrial Co., Ltd.；
Guinox 6380, Wuzhou Fei Zhuo forestry products Industrial Co., Ltd.；
AQUATACTM E 6180, Ke Teng high-performance polymer company, the U.S.；
NS-110, Wuzhou Arakawa Chemical Industries Co., Ltd；
5, wetting agent
Tego KL 245, Germany win wound industrial group；
BYK-349, German Bick chemistry；
6, defoaming agent
BYK-022, German Bick chemistry；
BYK-024, German Bick chemistry；
BYK-028, German Bick chemistry.
Two, test method:
1, three is as follows with the testing standard of aging (initial bonding strength, holds viscous force at peel strength) energetically:
Initial bonding strength is tested according to national standard GB/T 4852-2002 " pressure-sensitive tape tack test method "；
180 ° of peel strengths of initial stage and final 180 ° of peel strengths are according to national standard GB/T 2792-1998 " pressure-sensitive tape
180 ° of peeling strength test methods " it is tested；
Holding power is tested according to national standard GB/T 4851-1998 " pressure-sensitive tape holds Adhesion Test Method "；
Burn-in test standard is GB/T 17875-1999 " pressure-sensitive tape accelerated aging test method ".
2, the test method of bondline thickness
The measurement of bondline thickness is according to national standard GB/T 7125-1999 " pressure-sensitive tape and adhesive tape Thickness Test side
Method " it is tested.
3, the measurement of pressure-sensitive glue viscosity:
The measurement of viscosity is according to national standard GB/T 2794-2013 " the measurement list cylinder rotary viscosimeter method of adhesive viscosity "
It is tested, using Brookfield DV2TLVTJ0 model viscosity apparatus, under No. 63 rotor 30rpm speed, 25 DEG C of room temperature surveys
It is fixed.
Embodiment 1:
A kind of adhesive label, as shown in Figure 1, including substrate layer 1, pressure-sensitive adhesive layer 2, protective layer 3, the substrate layer 1 is
PET light film, the pressure-sensitive adhesive layer 2 are prepared by the pressure-sensitive glue prepared as follows, and with a thickness of 19.0 μm, the protective layer is
Glaxin release paper.
The pressure-sensitive glue for preparing the adhesive label is grouped as by the group of following parts by weight:
The preparation steps of pressure-sensitive glue: pure acrylic acid class pressure-sensitive adhesive emulsion is added in stirred tank, agitator shaft speed is
It 500 revs/min, stirs 5 minutes；Then it keeps revolving speed constant, adds solvent misture Guinox 5861, stir 10 minutes；Continue
It keeps revolving speed constant, adds defoaming agent BYK-028, stir 10 minutes；It keeps revolving speed constant, adds wetting agent Tego KL 349,
Stirring 10 minutes；Adjustment agitator shaft speed is 300 later, adds deionized water, is stirred 15 minutes, adjusts glue viscosity and is
219cps。
The preparation step of adhesive label: by being face-up laid on glass plate after PET base material sided corona treatment, with 60
Above-mentioned prepared pressure-sensitive glue is coated in PET base material by μm bar, and it is Celsius that coated PET base material is then placed into 70
It spends in baking oven, takes out, after natural cooling, be combined on pressure-sensitive adhesive layer 2 with Ge Laxin paper after five minutes.
The adhesive label prepared is subjected to initial bonding strength, 180 ° of peel strengths, holding power test, resulting result such as table
Shown in 1, ageing test result is as shown in table 2.
1 adhesive label three of table test result energetically
| Initial bonding strength # | Initial stage peel strength (N/25mm) | Final period removes strong (N/25mm) | Holding power (h) |
| 14 | 16.23 | 17.85 | >100 |
The test result energetically of adhesive label three after 2 aging of table
Smoothness is coated in PET base material using the pressure-sensitive glue in embodiment 1, wetting levelling is good, obtained adhesive sticker
Tag performance is balanced, and peel strength is prominent, and aged properties label is still excellent.
Embodiment 2:
A kind of adhesive label, as shown in Figure 1, including substrate layer 1, pressure-sensitive adhesive layer 2, protective layer 3, the substrate layer is
BOPP light film, the pressure-sensitive adhesive layer 2 are prepared by the pressure-sensitive glue prepared as follows, with a thickness of 22.2 μm, the protective layer
For Ge Laxin base stock.
The pressure-sensitive glue for preparing the adhesive label is grouped as by the group of following parts by weight:
The preparation steps of pressure-sensitive glue: pure acrylic acid class pressure-sensitive adhesive emulsion is added in stirred tank, agitator shaft speed is
It 500 revs/min, stirs 5 minutes；Then adjustment revolving speed is 800 revs/min, adds solvent misture Guinox 6380, stirring 15
Minute；Continue to keep revolving speed constant, add defoaming agent BYK-024, stirs 15 minutes；It keeps revolving speed constant, adds wetting agent
Tego KL 245 is stirred 15 minutes；Adjustment agitator shaft speed is 300 later, adds deionized water, is stirred 25 minutes, and glue is adjusted
Water viscosity is 386cps.
The preparation step of adhesive label: being face-up laid on glass plate after BOPP substrate sided corona treatment is used
Coated BOPP substrate on BOPP substrate, it is Celsius to be then placed into 80 by above-mentioned prepared glue application by 60 μm of bars
It spends in baking oven, takes out after 4 minutes, after natural cooling, be combined on pressure-sensitive adhesive layer 2 with Ge Laxin base stock layer upper surface.
The adhesive label prepared is subjected to initial bonding strength, 180 ° of peel strengths, holding power test, resulting result such as table
Shown in 3, ageing test result is as shown in table 4.
3 adhesive label three of table test result energetically
| Initial bonding strength # | Initial stage peel strength (N/25mm) | Final period removes strong (N/25mm) | Holding power (h) |
| 15 | 14.62 | 16.91 | >100 |
The test result energetically of adhesive label three after 4 aging of table
| Initial bonding strength # | Initial stage peel strength (N/25mm) | Final period removes strong (N/25mm) | Holding power (h) |
| 14 | 12.58 | 15.37 | >100 |
It is good that wetting levelling is coated on BOPP substrate using the pressure-sensitive glue in embodiment 2, no glue shrinkage cavity or contraction
Situation, obtained adhesive label balancing performance, aged properties label are still excellent.
Embodiment 3:
A kind of adhesive label, as shown in Figure 1, including substrate layer 1, pressure-sensitive adhesive layer 2, protective layer 3, the substrate layer is
BOPP film, the pressure-sensitive adhesive layer are prepared by the pressure-sensitive glue prepared as follows, and with a thickness of 20.1 μm, the protective layer is lattice
Racine base stock.
The pressure-sensitive glue for preparing the adhesive label is grouped as by the group of following parts by weight:
The preparation steps of pressure-sensitive glue: pure acrylic acid class pressure-sensitive adhesive emulsion is added in stirred tank, agitator shaft speed is
It 500 revs/min, stirs 5 minutes；Then adjustment revolving speed is 600 revs/min, adds solvent misture Arizona chemical company
AQUATACTM E 6180 is stirred 20 minutes；Continue to keep revolving speed constant, add defoaming agent BYK-022, stirs 15 minutes；It protects
It is constant to hold revolving speed, adds wetting agent Tego KL 245, stirs 15 minutes；Later adjustment agitator shaft speed be 500, addition go from
Sub- water stirs 25 minutes, and adjusting glue viscosity is 390cps.
The preparation step of adhesive label: being face-up laid on glass plate after BOPP substrate sided corona treatment is used
Coated BOPP substrate on BOPP substrate, it is Celsius to be then placed into 90 by above-mentioned prepared glue application by 60 μm of bars
It spends in baking oven, takes out after 3 minutes, after natural cooling, be combined on pressure-sensitive adhesive layer 2 with Ge Laxin base stock layer upper surface.
The adhesive label prepared is subjected to initial bonding strength, 180 ° of peel strengths, holding power test, resulting result such as table
Shown in 5, ageing test result is as shown in table 6.
5 adhesive label three of table test result energetically
| Initial bonding strength # | Initial stage peel strength (N/25mm) | Final period removes strong (N/25mm) | Holding power (h) |
| 16 | 12.79 | 14.31 | >100 |
The test result energetically of adhesive label three after 6 aging of table
| Initial bonding strength # | Initial stage peel strength (N/25mm) | Final period removes strong (N/25mm) | Holding power (h) |
| 15 | 12.18 | 13.83 | >100 |
It is good that wetting levelling is coated on BOPP substrate using the pressure-sensitive glue in embodiment 3, no glue shrinkage cavity or contraction
Situation, obtained adhesive label balancing performance, tack is excellent, and aged properties label is still excellent, and without obvious
Decline.
Comparative example 1:
The preparation process of pressure-sensitive glue and adhesive label such as embodiment 1, the difference is that, during the preparation process not
Solvent misture is added, aqueous acrylic emulsion uses pure acrylic acid class water-borne pressure sensitive adhesive lotion I, the aqueous pressure of pure acrylic acid class respectively
(JN AA-3150, Guangzhou fine horse can change for quick latex solution II, pure acrylic acid class water-borne pressure sensitive adhesive lotion III and commercially available pressure-sensitive adhesive emulsion
Work Co., Ltd), corresponding 2 thickness of pressure-sensitive adhesive layer is respectively 22.8 μm, 23.3 μm, 21.7 μm.
The adhesive label I prepared, adhesive label II, adhesive label III and adhesive label 3150 are carried out
Initial bonding strength, 180 ° of peel strengths, holding power test, resulting the results are shown in Table 7, and ageing test result is as shown in table 8.
7 adhesive label three of table test result energetically
| Sample ID | Initial bonding strength # | Initial stage removes strong (N/25mm) | Final period removes strong (N/25mm) | Holding power (h) |
| I | 11 | 11.39 | 12.11 | >100 |
| Ⅱ | 12 | 11.66 | 11.93 | >100 |
| Ⅲ | 12 | 9.82 | 10.08 | >100 |
| 3150 | 11 | 7.38 | 7.55 | >100 |
The test result energetically of adhesive label three after 8 aging of table
| Sample ID | Initial bonding strength # | Initial stage removes strong (N/25mm) | Final period removes strong (N/25mm) | Holding power (h) |
| I | 11 | 9.19 | 11.83 | >100 |
| Ⅱ | 11 | 9.02 | 9.90 | >100 |
| Ⅲ | 12 | 7.42 | 9.01 | >100 |
| 3150 | 9 | 4.77 | 5.35 | >100 |
In terms of test result, homemade pure acrylic acid class water-borne pressure sensitive adhesive lotion I, II, III have compared to JN AA-3150
The performance of the advantage of initial bonding strength and peel strength, especially peel strength, and the ageing properties for making lotion by oneself are also better than always
3150 after change, meanwhile, 3150 loss in peel strength after aging is greater than self-control lotion.And increase compared to being added without
Glutinous resin, the adhesive label three that solvent misture (embodiment 1-3) is added in system are more preferably excellent energetically.
Comparative example 2:
The preparation process of pressure-sensitive glue and adhesive label such as embodiment 2 the difference is that, using JN AA-3150,
Guangzhou Jun Neng Chemical Co., Ltd. substitutes pure acrylic acid class water-borne pressure sensitive adhesive lotion and pressure-sensitive glue, gained pressure-sensitive adhesive layer thickness is made
It is 20.3 μm, pressure-sensitive glue viscosity is 331cps, and performance test data is as shown in table 9,10.
9 adhesive label three of table test result energetically
| Initial bonding strength # | Initial stage peel strength (N/25mm) | Final period removes strong (N/25mm) | Holding power (h) |
| 14 | 8.93 | 9.05 | 83 |
The test result energetically of adhesive label three after 10 aging of table
| Initial bonding strength # | Initial stage peel strength (N/25mm) | Final period removes strong (N/25mm) | Holding power (h) |
| 13 | 6.17 | 6.01 | >100 |
Smooth using coating of the pressure-sensitive glue in comparative example 2 on BOPP substrate, wetting levelling is good, but because institute
Main body pressure-sensitive adhesive emulsion is different, compares embodiment 2, the peel strength of 2 adhesive sticker of comparative example and holds to be stained with and is decreased obviously, always
Performance is compared and is declined by a big margin after change, and compared to the data of comparative example 2, embodiment 2 uses self-control pure acrylic acid class water
Property pressure-sensitive adhesive emulsion II the performance boost of adhesive label to be obviously integrally higher than using JN AA-3150's.
Comparative example 3
The preparation process of pressure-sensitive glue and adhesive label such as embodiment 2, the difference is that, aqueous emulsifying increasing stick tree
The additional amount of rouge Guinox 6380 is 40g, and for gained pressure-sensitive adhesive layer with a thickness of 21.1 μm, the viscosity of pressure-sensitive glue is 310cps.Its
Performance test data is as shown in table 11,12.
11 adhesive label three of table test result energetically
| Initial bonding strength # | Initial stage peel strength (N/25mm) | Final period removes strong (N/25mm) | Holding power (h) |
| 17 | 10.15 | 11.34 | 58 |
The test result energetically of adhesive label three after 12 aging of table
| Initial bonding strength # | Initial stage peel strength (N/25mm) | Final period removes strong (N/25mm) | Holding power (h) |
| 16 | 9.85 | 11.01 | 96 |
Smooth using coating of the pressure-sensitive glue in comparative example 3 on BOPP substrate, wetting levelling is good, but because institute
Solvent misture amount is excessive, compares embodiment 2, and initial bonding strength is promoted, and peel strength and hold it is viscous decreased significantly, not
It is balanced that preferable three power can be reached.
Comparative example 4
The preparation process of pressure-sensitive glue and adhesive label such as embodiment 2, the difference is that, aqueous emulsifying increasing stick tree
The additional amount of rouge Guinox 6380 is 12g, and for gained pressure-sensitive adhesive layer with a thickness of 21.4 μm, the viscosity of pressure-sensitive glue is 281cps.Its
Performance test data is as shown in table 13,14.
13 adhesive label three of table test result energetically
| Initial bonding strength # | Initial stage peel strength (N/25mm) | Final period removes strong (N/25mm) | Holding power (h) |
| 11 | 10.69 | 12.82 | >100 |
The test result energetically of adhesive label three after 14 aging of table
| Initial bonding strength # | Initial stage peel strength (N/25mm) | Final period removes strong (N/25mm) | Holding power (h) |
| 11 | 8.55 | 10.17 | >100 |
Smooth using coating of the pressure-sensitive glue in comparative example 4 on BOPP substrate, wetting levelling is good, but because institute
Solvent misture amount is very little, compares embodiment 2, and just viscous, initial stage peel strength and final peel strength show equal deviation, aging
Overall performance afterwards is relatively low.
By embodiment 2 it is found that the dosage of solvent misture is to adhesive sticker compared with comparative example 2, comparative example 3, comparative example 4
The influence of label three energetically is very big, and to obtain the adhesive label of three big dynamic balances, suitable solvent misture dosage is closed very much
Key.
Comparative example 5
The preparation process of pressure-sensitive glue and adhesive label such as embodiment 3, the difference is that, the aqueous emulsifying of use
Solvent misture is NS-110, and for gained pressure-sensitive adhesive layer with a thickness of 19.7 μm, the viscosity of pressure-sensitive glue is 209cps.Its performance test number
According to as shown in table 15,16.
15 adhesive label three of table test result energetically
| Initial bonding strength # | Initial stage peel strength (N/25mm) | Final period removes strong (N/25mm) | Holding power (h) |
| 13 | 10.53 | 11.27 | 67 |
The test result energetically of adhesive label three after 16 aging of table
| Initial bonding strength # | Initial stage peel strength (N/25mm) | Final period removes strong (N/25mm) | Holding power (h) |
| 11 | 7.53 | 8.27 | 96 |
Smooth using coating of the pressure-sensitive glue in comparative example 5 on BOPP substrate, wetting levelling is good, but because institute
Tackifying resin type is different, and compared to embodiment 3, three the performance test results energetically are all much smaller, and after aging
Just viscous and peel strength also declines comparatively fast.
Various embodiments of the present invention are described above, above description is exemplary, and non-exclusive, and
It is not limited to disclosed each embodiment.Without departing from the scope and spirit of illustrated each embodiment, for this skill
Many modifications and changes are obvious for the those of ordinary skill in art field.
Claims (12)
1. a kind of pressure-sensitive glue, which is characterized in that the pressure-sensitive glue uses the raw material reaction including following component to be made, each component
It forms by weight as follows:
2. pressure-sensitive glue according to claim 1, which is characterized in that the aqueous acrylic emulsion is pure acrylic acid class water
Property pressure-sensitive adhesive emulsion；
Preferably, pure acrylic acid class water-borne pressure sensitive adhesive lotion is different with methyl methacrylate, n-butyl acrylate and acrylic acid
One of monooctyl ester is a variety of as main monomer, with hydroxy-ethyl acrylate, acrylic acid, β-acryloxy propionic, metering system
One of sour hydroxyl ethyl ester and methacrylic acid are a variety of as function monomer, generate through emulsion polymerization.
3. pressure-sensitive glue according to claim 1 or 2, which is characterized in that the solvent misture is selected from aqueous emulsifying increasing stick
Resin；
Preferably, the aqueous emulsifying solvent misture is that polyalcohol is modified natural rosin and emulsifies obtained；
Preferably, the polyalcohol is selected from glycerine and/or pentaerythrite；
Preferably, the aqueous emulsifying solvent misture is selected from Guinox 5861, Guinox 6380 and AQUATACTMIn E 6180
It is one or more.
4. pressure-sensitive glue according to any one of claim 1-3, which is characterized in that the wetting agent is selected from polysiloxanes
Class wetting agent is preferably selected from Siloxane-Oxyalkylene Copolymers class wetting agent, is more preferably selected from Tego KL 245 and BYK-349
It is one or two kinds of.
5. pressure-sensitive glue described in any one of -4 according to claim 1, which is characterized in that the defoaming agent disappears for organic silicon
Infusion is preferably selected from one of BYK-022, BYK-024 and BYK-028 or a variety of.
6. a kind of preparation method of pressure-sensitive glue according to any one of claims 1 to 5, which is characterized in that this method packet
It includes:
Under agitation, the contact of the aqueous acrylic emulsion, solvent misture, wetting agent, defoaming agent and water is mixed
It closes, adjusting glue viscosity is 200-400cps.
7. preparation method according to claim 6, which is characterized in that method includes the following steps:
Under the conditions of agitator shaft speed is 400-800 revs/min, aqueous acrylic emulsion is mixed with solvent misture, stirs 10-
20 minutes；It keeps revolving speed constant, adds defoaming agent, stir 10-15 minutes；It keeps revolving speed constant, adds wetting agent, stir 10-
15 minutes；Later under the conditions of agitator shaft speed is 300-500 revs/min, water is added, is stirred 15-25 minutes.
8. a kind of adhesive label, which includes: substrate layer (1) and the pressure-sensitive adhesive layer for being bonded in substrate layer (1)
(2)；It is characterized in that, the pressure-sensitive adhesive layer (2) is pressure-sensitive glue according to any one of claims 1 to 5 or such as right
It is required that pressure-sensitive glue made from preparation method described in 6-7 is made by being coated on the substrate layer (1).
9. adhesive label according to claim 8, which is characterized in that the substrate layer (1) is selected from what sided corona treatment was crossed
The BOPP light film that PET light film or sided corona treatment are crossed.
10. adhesive label according to claim 8 or claim 9, which is characterized in that the adhesive label further includes protective layer
(3), the protective layer (3) is bonded in the pressure-sensitive adhesive layer (2)；Preferably, the protective layer (3) be selected from glaxin release paper or
Ox-hide release paper.
11. a kind of preparation method of the adhesive label as described in any one of claim 8-10, which is characterized in that the system
Preparation Method includes the following steps:
A, pressure-sensitive glue is coated on the substrate layer (1), is then baked to, obtain the base coated with pressure-sensitive adhesive layer (2)
Material layer (1)；
Preferably, further include step b: protective layer (3) being attached on pressure-sensitive adhesive layer (2) after the sample of step a is cooled to room temperature.
12. preparation method according to claim 11, which is characterized in that in the step a, the substrate layer (1) is flat
It is laid on glass plate, the pressure-sensitive glue is coated on the substrate layer (1) by 50-80 μm of bar；
Preferably, the temperature of the drying is 70-90 DEG C；The time of drying is 3-5 minutes.
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| CN201711295086.5A CN109897574B (en) | 2017-12-08 | 2017-12-08 | Pressure-sensitive adhesive and preparation method thereof, and adhesive label and preparation method thereof |
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Cited By (6)
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| CN110951424A (en) * | 2019-12-06 | 2020-04-03 | 四川羽玺新材料股份有限公司 | Adhesive for mobile phone frame shading adhesive tape and preparation method and application thereof |
| CN111154415A (en) * | 2020-01-08 | 2020-05-15 | 江苏耐斯数码科技股份有限公司 | Thermal sublimation printing adhesive label |
| CN113621322A (en) * | 2021-07-19 | 2021-11-09 | 宁波卓越印务有限公司 | Multifunctional adhesive label and preparation method thereof |
| CN113897141A (en) * | 2021-09-16 | 2022-01-07 | 太仓隽旺电子科技有限公司 | Anti-counterfeiting adhesive label and preparation method thereof |
| CN115156001A (en) * | 2022-08-08 | 2022-10-11 | 湖南恒创新材料有限公司 | Preparation process and processing equipment of small water-soluble pressure-sensitive adhesive |
| CN116515408A (en) * | 2023-04-13 | 2023-08-01 | 江苏金大包装材料科技有限公司 | Preparation process of oil-resistant high-viscosity self-adhesive label |
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| CN116515408A (en) * | 2023-04-13 | 2023-08-01 | 江苏金大包装材料科技有限公司 | Preparation process of oil-resistant high-viscosity self-adhesive label |
| CN116515408B (en) * | 2023-04-13 | 2023-10-24 | 江苏金大包装材料科技有限公司 | Preparation process of oil-resistant high-viscosity self-adhesive label |
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