CN103556528B - High-barrier-propertenvironment-friendlycoating environment-friendlycoating coating composition for non-aluminum lining paper and preparation method thereof - Google Patents
High-barrier-propertenvironment-friendlycoating environment-friendlycoating coating composition for non-aluminum lining paper and preparation method thereof Download PDFInfo
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- CN103556528B CN103556528B CN201310464134.4A CN201310464134A CN103556528B CN 103556528 B CN103556528 B CN 103556528B CN 201310464134 A CN201310464134 A CN 201310464134A CN 103556528 B CN103556528 B CN 103556528B
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Abstract
The invention discloses a kind of High-barrier-propertenvironment-friendlycoating environment-friendlycoating coating composition for non-aluminum lining paper and preparation method thereof；Described coating composition includes each component of following weight portion: self-crosslinking acrylic emulsion 30～55 parts, aqueous polyurethane 20～35 parts, cosolvent 10～25 parts, deionized water 15～40 parts, wetting agent 0.2 part, levelling agent 0.2 part, defoamer 0.1 part.During preparation, self-crosslinking acrylic emulsion, aqueous polyurethane being put into reactor, stirring at low speed is uniform；After cosolvent and deionized water being mixed, stirring adds in reactor, stirring at low speed；It is sequentially added into wetting agent, levelling agent, moderate-speed mixer；Add defoamer, high-speed stirred, filter,.The coating barrier that the coating composition of the present invention is formed is excellent, barrier property is stable, and only need to be coated with once (thickness >=3 μm) barrier and just can reach requirement, and coating application apparatus is simple, it is not necessary to special coating apparatus.
Description
Technical field
The present invention relates to water paint field, be specifically related to a kind of environment-friendly type for the high barrier coating group without aluminum casting paper
Compound and preparation method thereof.
Background technology
Internal lining paper, as one of the important component part of cigarette packaging material, acts primarily as fragrance, the moistureproof effect protected, therefore
Require that cigarette lining paper has certain barrier to air and steam；Cigarette lining paper mainly has aluminium foil compound lining, turns in the market
Moving aluminum coated inner lining, vacuum and directly plate three kinds of forms of liner, what is common is that of three all comprises one layer of aluminium to reach the effect intercepted.
But have the disadvantage that (1) is intended to consume non-ferrous metal aluminium, particularly aluminium foil composite smoke lining, and aluminium belongs to non-renewable resources；
(2) product can not be degradable after using, and uses aluminium to be difficult to recovery and causes the wasting of resources；(3) aluminium foil or aluminum plating process institute are produced
Use equipment cost height, power consumption big；(4) complex manufacturing, cost is high；
Accordingly, become the developing direction of internal lining paper from now on without calorize, but the pass that can be applied without aluminum casting paper and promote
Can key factor reach existing lining paper level, therefore exploitation a kind of environment-friendly type, high barrier coating with regard to its barrier, by former
Paper surface is coated with this coating and improves the barrier without aluminum casting paper and have great importance.
By the retrieval of existing document is found, Chinese patent CN102966001 disclose a kind of without aluminium cigarette lining paper and
Its production method, its barrier is mainly determined by the polyvinyl alcohol in barrier layer and agar, but because of the water imbibition of polyvinyl alcohol,
Under high humidity environment, its barrier can be substantially reduced；It addition, the membership that adds of agar causes the big even gel of dope viscosity, it is special to need
Equipment (inversely coating) could be coated with；Chinese patent CN102943416 discloses a kind of degradable volume with high obstructing performance
Cigarette internal lining paper, comprises polyvinylidene chloride (PVDC) in its barrier layer, containing chlorine element in PVDC, when castoff burning processes
Can produce the toxic gas such as chlorine, dioxin, additionally it requires barrier layer thickness > 5 μm, relatively costly.
Summary of the invention
The defect that it is an object of the invention to overcome above-mentioned prior art to exist provides a kind of environment-friendly type for without aluminum casting paper
High barrier coating composition and preparation method thereof.
It is an object of the invention to be achieved through the following technical solutions:
The present invention relates to a kind of High-barrier-propertenvironment-friendlycoating environment-friendlycoating coating composition for non-aluminum lining paper, including following weight portion
Each component:
Preferably, the weight average molecular weight Mw scope of described self-crosslinking acrylic emulsion is 100,000～200,000；Vitrifying turns
Temperature (Tg) scope 30 DEG C～60 DEG C；MFT (MFT) is less than 90 DEG C；Energy under the conditions of >=100 DEG C of heating >=10s
Crosslink reaction, form tridimensional network, barrier layer plays the effect of skeleton, and this structure is at high humidity, relatively
High temperature can keep stablizing of structure.
Preferably, described aqueous polyurethane weight average molecular weight Mw scope is 10,000～30,000；Soft section of part of strand is
Ordered structure；Soft section of part-structure is the most regular, is easily formed crystal structure in film forming procedure, and crystallization is the most obvious, and coating intercepts
Property is the best.In film forming procedure, because of its molecular weight, can be filled in the middle of self-crosslinking acrylic three-dimensional net structure；Soft
Section part-structure regular easy forming part crystallization, causes free volume in institute's film forming to reduce, and free volume is steam, gas
The body molecule main thoroughfare by coating, the therefore minimizing of free volume, can improve the barrier of coating；Additionally polyurethane molecular
Between, the active force that can be formed between polyurethane and self-crosslinking acrylic between hydrogen bond, electrostatic, Van der Waals force equimolecular, this
To put forward the cohesion density of coating further, barrier is further enhanced.
Preferably, described cosolvent is one or more in ethanol, isopropanol, propane diols ethers.
Preferably, described wetting agent is anionic wetting agents or non-ionic wetting agent.
Preferably, described defoamer is modified polyorganosiloxane, non-ionic interfacial agent, modified silicon ketone defoamer
In one or more.
The invention still further relates to the preparation method of aforesaid High-barrier-propertenvironment-friendlycoating environment-friendlycoating coating composition for non-aluminum lining paper, bag
Include following steps:
Step A, get the raw materials ready according to described component and weight portion；
Step B, described self-crosslinking acrylic emulsion, aqueous polyurethane being put in reactor, stirring at low speed is uniform；
Step C, described cosolvent and deionized water are mixed after, stirring in the case of join in reactor,
Stirring at low speed 5～10min；
Step D, in reactor, it is sequentially added into described wetting agent, levelling agent, moderate-speed mixer 10～20min；
Step E, in reactor, add described defoamer, high-speed stirred 30～40min；Detection obtain consolidating of sample contain,
Viscosity, finally filters, and obtains environment-friendly type for the high barrier coating without aluminum casting paper.
Preferably, the speed of described stirring at low speed is 300～500rpm；The speed of described moderate-speed mixer be 700～
800rpm；The speed of described high-speed stirred is 1000～1200rpm.
Compared with prior art, the device have the advantages that into:
(1) excellent performance: the coating barrier that the coating in the present invention is formed is excellent, barrier is higher than current directly plating papers water
Flat；
(2) stable performance: the coating barrier property that the coating in the present invention is formed is stable, can keep steady under high humidity environment
Fixed；
(3) cost advantage: only need to be coated with once (thickness >=3 μm) barrier and just can reach requirement, the letter of coating application apparatus
Single, it is not necessary to special coating apparatus；
(4) environment-friendly advantage: the coating in the present invention is water-based system, without organic solvent, the most chloride element, can drop completely
Solve.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described in detail.Following example will assist in the technology of this area
Personnel are further appreciated by the present invention, but limit the present invention the most in any form.It should be pointed out that, the ordinary skill to this area
For personnel, without departing from the inventive concept of the premise, it is also possible to make some deformation and improvement.These broadly fall into the present invention
Protection domain.
In the present invention, the weight average molecular weight Mw scope of described self-crosslinking acrylic emulsion is 100,000～200,000；Vitrifying turns
Temperature (Tg) scope 30 DEG C～60 DEG C；MFT (MFT) is less than 90 DEG C；Energy under the conditions of >=100 DEG C of heating >=10s
Crosslink reaction, form tridimensional network.Described aqueous polyurethane weight average molecular weight Mw scope is 10,000～30,000；Strand
Soft section of part be ordered structure.Described cosolvent is one or more in ethanol, isopropanol, propane diols ethers；Following reality
Execute and example is chosen ethanol.Described wetting agent is anionic wetting agents or non-ionic wetting agent；Following example are selected the moon
Ionic wetting agent.Described defoamer is in modified polyorganosiloxane, non-ionic interfacial agent, modified silicon ketone defoamer
One or more；Following example are selected modified polyorganosiloxane.
Embodiment 1
The High-barrier-propertenvironment-friendlycoating environment-friendlycoating coating composition for non-aluminum lining paper of the present embodiment, including following components and content
(weight portion):
Concrete preparation comprises the steps:
(1) get the raw materials ready according to above component and content (weight portion)；
(2) self-crosslinking acrylic emulsion, aqueous polyurethane put in reactor, and low speed (300～500rpm) stirs；
(3), after cosolvent ethanol and deionized water being mixed, join in reactor in the case of stirring, 300
～500rpm stirring 5～10min；
(4) being sequentially added into wetting agent, levelling agent in reactor, middling speed (700～800rpm) stirs 10～20min；
(5) adding modified polyorganosiloxane defoamer in reactor, (1000～1200rpm) stir 30～40 points at a high speed
Clock；
(6) detection above-mentioned steps obtain consolidating of sample contain, viscosity, be finally filtrated to get environment-friendly type for the height without aluminum casting paper
Barrier coating.
Embodiment 2
The High-barrier-propertenvironment-friendlycoating environment-friendlycoating coating composition for non-aluminum lining paper of the present embodiment, including following components and content
(weight portion):
Concrete preparation comprises the steps:
(1) get the raw materials ready according to above component and content (weight portion)；
(2) self-crosslinking acrylic emulsion, aqueous polyurethane put in reactor, and low speed (300～500rpm) stirs；
(3), after cosolvent isopropanol and deionized water being mixed, join in reactor in the case of stirring,
300～500rpm stirrings 5～10min；
(4) being sequentially added into wetting agent, levelling agent in reactor, middling speed (700～800rpm) stirs 10～20min；
(5) adding modified silicon ketone defoamer in reactor, (1000～1200rpm) stir 30～40 minutes at a high speed；
(6) detection above-mentioned steps obtain consolidating of sample contain, viscosity, be finally filtrated to get environment-friendly type for the height without aluminum casting paper
Barrier coating.
Embodiment 3
The High-barrier-propertenvironment-friendlycoating environment-friendlycoating coating composition for non-aluminum lining paper of the present embodiment, including following components and content
(weight portion):
Concrete preparation comprises the steps:
(1) get the raw materials ready according to above component and content (weight portion)；
(2) self-crosslinking acrylic emulsion, aqueous polyurethane put in reactor, and low speed (300～500rpm) stirs；
(3), after co-solvents propylene glycol ether and deionized water being mixed, join in reactor in the case of stirring,
300～500rpm stirrings 5～10min；
(4) being sequentially added into wetting agent, levelling agent in reactor, middling speed (700～800rpm) stirs 10～20min；
(5) adding non-ionic interfacial agent type defoamer in reactor, (1000～1200rpm) stir 30 at a high speed
～40 minutes；
(6) detection above-mentioned steps obtain consolidating of sample contain, viscosity, be finally filtrated to get environment-friendly type for the height without aluminum casting paper
Barrier coating.
Comparative example 1
The coating composition of this comparative example is for comparing with embodiment 1, and it includes following components and content (weight
Part):
Concrete preparation comprises the steps:
(1) get the raw materials ready according to above component and content (weight portion)；
(2) self-crosslinking acrylic emulsion, aqueous polyurethane put in reactor, and low speed (300～500rpm) stirs；
(3), after cosolvent ethanol and deionized water being mixed, join in reactor in the case of stirring, 300
～500rpm stirring 5～10min；
(4) being sequentially added into wetting agent, levelling agent in reactor, middling speed (700～800rpm) stirs 10～20min；
(5) adding modified polyorganosiloxane defoamer in reactor, (1000～1200rpm) stir 30～40 points at a high speed
Clock；
(6) detection above-mentioned steps obtain consolidating of sample contain, viscosity, be finally filtrated to get coating.
Comparative example 2
The coating composition of this comparative example is for comparing with embodiment 2, and it includes following components and content (weight
Part):
Concrete preparation comprises the steps:
(1) get the raw materials ready according to above component and content (weight portion)；
(2) self-crosslinking acrylic emulsion, aqueous polyurethane put in reactor, and low speed (300～500rpm) stirs；
(3), after cosolvent isopropanol and deionized water being mixed, join in reactor in the case of stirring,
300～500rpm stirrings 5～10min；
(4) being sequentially added into wetting agent, levelling agent in reactor, middling speed (700～800rpm) stirs 10～20min；
(5) adding modified silicon ketone defoamer in reactor, (1000～1200rpm) stir 30～40 minutes at a high speed；
(6) detection above-mentioned steps obtain consolidating of sample contain, viscosity, be finally filtrated to get coating.
Embodiment 6, performance test
By by above-described embodiment 1～3 and the coating composition made of comparative example 1,2, it is directly coated at cigarette lining body paper (fixed
Amount 50g/m2) surface, dry measure 1.8～2.5g/m2, continuous through preference temperature (90 DEG C～130 DEG C) and time (8 seconds～15 seconds)
After baking and curing film forming, after placing 24h, GB/T1038 and GB/T1037 is used to measure its gas transit dose and moisture-vapor transmission,
The straight plating cigarette lining paper done with same base stock as control sample, data such as table 1 below:
Table 1
As shown in Table 1: embodiment 1,2,3 composition barrier is significantly better than control sample, wherein the brightest with embodiment 2
Aobvious；And comparative example 1,2 barrier is without improving, even it is deteriorated.Said composition has the barrier of excellence and is mainly based upon following machine
Reason: the self-crosslinking acrylic in composition is under the conditions of >=100 DEG C, and the functional group between different molecular can crosslink reaction,
Ultimately form a stable three-dimensional net structure, barrier layer plays the effect of skeleton, and this structure is at high humidity, relatively
High temperature can keep stablizing of structure.In film forming procedure, because of its molecular weight, self-crosslinking acrylic three can be filled into
In the middle of dimension network structure；Soft section of part-structure regular easy forming part crystallization, causes free volume in institute's film forming to reduce, and from
It is steam, the gas molecule main thoroughfare by coating, the therefore minimizing of free volume by volume, the obstruct of coating can be improved
Property；Additionally between polyurethane molecular, hydrogen bond, electrostatic, Van der Waals force etc. between polyurethane and self-crosslinking acrylic, can be formed
Intermolecular active force, this will put forward the cohesion density of coating further, and barrier is further enhanced.
Above the specific embodiment of the present invention is described.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, those skilled in the art can make various deformation or amendment within the scope of the claims, this not shadow
Ring the flesh and blood of the present invention.
Claims (5)
1. a High-barrier-propertenvironment-friendlycoating environment-friendlycoating coating composition for non-aluminum lining paper, it is characterised in that each by following weight portion
Component forms:
The weight average molecular weight of described self-crosslinking acrylic emulsion is 100,000～200,000, and glass transition temperature is 30 DEG C～60
DEG C, MFT is less than 90 DEG C, can crosslink reaction at >=100 DEG C of heating more than 10s, form tridimensional network,
The effect of skeleton is played in barrier layer；
The weight average molecular weight of described aqueous polyurethane is 10,000～30,000, and soft section of part of strand is ordered structure.
2. High-barrier-propertenvironment-friendlycoating environment-friendlycoating coating composition for non-aluminum lining paper as claimed in claim 1, it is characterised in that described
Cosolvent be one or more in ethanol, isopropanol, propane diols ethers.
3. High-barrier-propertenvironment-friendlycoating environment-friendlycoating coating composition for non-aluminum lining paper as claimed in claim 1, it is characterised in that described
Wetting agent be anionic wetting agents or non-ionic wetting agent.
4. High-barrier-propertenvironment-friendlycoating environment-friendlycoating coating composition for non-aluminum lining paper as claimed in claim 1, it is characterised in that described
Defoamer be one or more in modified polyorganosiloxane, non-ionic interfacial agent, modified silicon ketone defoamer.
5. a preparation method for High-barrier-propertenvironment-friendlycoating environment-friendlycoating coating composition for non-aluminum lining paper as claimed in claim 1,
It is characterized in that, comprise the steps:
Step A, get the raw materials ready according to described component and weight portion；
Step B, described self-crosslinking acrylic emulsion, aqueous polyurethane being put in reactor, stirring at low speed is uniform；
Step C, described cosolvent and deionized water are mixed after, stirring in the case of join in reactor, low speed
Stirring 5～10min；
Step D, in reactor, it is sequentially added into described wetting agent, levelling agent, moderate-speed mixer 10～20min；
Step E, in reactor, add described defoamer, high-speed stirred 30～40min, filter, obtain described environment-friendly type for
High barrier Coating material composition product without aluminum casting paper；
The speed of described stirring at low speed is 300～500rpm；The speed of described moderate-speed mixer is 700～800rpm；Described high speed
The speed of stirring is 1000～1200rpm.
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| CN103556528B true CN103556528B (en) | 2016-08-31 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105926368A (en) * | 2016-05-18 | 2016-09-07 | 常德金德镭射科技股份有限公司 | High-barrier aluminum-free coating paper |
| CN109235126A (en) * | 2018-08-24 | 2019-01-18 | 云南九九彩印有限公司 | A kind of waterproof back applies material and preparation method thereof and application method |
| CN109518524B (en) * | 2018-09-26 | 2021-12-21 | 江苏乘鹰新材料股份有限公司 | Water-based oil-proof back coating for tipping paper and application and preparation method thereof |
| CN114350217B (en) * | 2021-12-28 | 2023-01-13 | 万华化学集团股份有限公司 | Barrier coating, preparation method thereof and recyclable paper |
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| US4108840A (en) * | 1977-04-15 | 1978-08-22 | Ppg Industries, Inc. | Urea-urethane-acrylate radiation curable coating compositions and methods of making same |
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| CN101768399A (en) * | 2009-12-16 | 2010-07-07 | 上海维凯化学品有限公司 | Environment-friendly aquosity composite citicall limited aluminium paint and preparation method thereof |
| CN102363933A (en) * | 2011-06-30 | 2012-02-29 | 上海乘鹰新材料有限公司 | Environmentally-friendly aqueous matte aluminized paper undercoating paint and preparation method as well as application thereof |
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| US4108840A (en) * | 1977-04-15 | 1978-08-22 | Ppg Industries, Inc. | Urea-urethane-acrylate radiation curable coating compositions and methods of making same |
| CN101407656A (en) * | 2008-11-14 | 2009-04-15 | 上海维凯化学品有限公司 | Environment-friendly type moldable aqueous transfer coating, preparation and use thereof |
| CN101768399A (en) * | 2009-12-16 | 2010-07-07 | 上海维凯化学品有限公司 | Environment-friendly aquosity composite citicall limited aluminium paint and preparation method thereof |
| CN102363933A (en) * | 2011-06-30 | 2012-02-29 | 上海乘鹰新材料有限公司 | Environmentally-friendly aqueous matte aluminized paper undercoating paint and preparation method as well as application thereof |
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