CN110103603A - The resistance to strong wet friction thermosensitive film of one kind and its manufacturing method - Google Patents
The resistance to strong wet friction thermosensitive film of one kind and its manufacturing method Download PDFInfo
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- CN110103603A CN110103603A CN201910469589.2A CN201910469589A CN110103603A CN 110103603 A CN110103603 A CN 110103603A CN 201910469589 A CN201910469589 A CN 201910469589A CN 110103603 A CN110103603 A CN 110103603A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
- B41M5/382—Contact thermal transfer or sublimation processes
- B41M5/385—Contact thermal transfer or sublimation processes characterised by the transferable dyes or pigments
- B41M5/3858—Mixtures of dyes, at least one being a dye classifiable in one of groups B41M5/385 - B41M5/39
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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
- 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
- C09D129/02—Homopolymers or copolymers of unsaturated alcohols
- C09D129/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
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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
- C09D133/00—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 only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
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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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
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- Wood Science & Technology (AREA)
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- Optics & Photonics (AREA)
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- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The present invention discloses the resistance to strong wet friction thermosensitive film of one kind and its manufacturing method, it is successively coated with prime coat, heat-sensitive layer, water-resistant layer and printing adaptation layer on BOPP basement membrane, wherein prime coat, heat-sensitive layer and printing adaptation layer are aqueous coating system, it is produced after coating using heated-air drying mode, water-resistant layer is waterborne UV coating, heated-air drying is first passed through after coating, after the drying of coating moisture, further uses UV lamp solidify coating.Thermosensitive film product of the present invention can preferably adapt to the printing requirement of different printing devices, and to the adaptability of printing ink, print image has extremely strong moisture-proof frictional behaviour, and improves the protective performance of temperature-sensitive film image.
Description
Technical field
The present invention relates to a kind of resistance to strong wet friction thermosensitive film and its manufacturing methods.
Technical background
As the application of thermal printing material is more and more wider, the dosage of thermosensitive film class is comparatively fast increased, such as aquatic products and cold
Demand in terms of jelly food to thermosensitive film develops recently than very fast.It is cold in commodity due to the application characteristic of aquatic products and frozen food
Freeze, process, all touch water in transportational process, has very high requirement to the image moisture-proof frictional behaviour of thermosensitive film.
Traditional thermosensitive film product is generally coated production using water paint, generallys use three coating structures at present
Technological design is carried out, i.e., is followed successively by basement membrane, prime coat, heat-sensitive layer, protective layer from bottom to top.All coatings are that water-based system applies
Material makes coating have certain water-resistance and moisture-proof frictional property, however water-based system after coating coating by heated-air drying film forming
The resin emulsion or PVA that coating uses all have certain hydrophily, even if the degree of cross linking of its film layer is not after drying and forming-film
Be it is very good, in water impregnate after its hydrophily still influence whether moisture-proof frictional behaviour.Meanwhile to reach relatively good coating
Fastness, the adhesive usage ratio setting in general each coating process formula is bigger, influences whether the print performance of product,
For printing the more difficult adaptation of the lower equipment of energy.Therefore, it is necessary to be improved from coating process or coating structure, overcome
The water-fast weak characteristic of water paint fundamentally solves the stronger bring adverse effect of hydrophily after forming a film because of adhesive, into
And the moisture-proof frictional behaviour of product can be increased substantially, meet terminal for the high request of the performance.
Summary of the invention
For the deficiency of above-mentioned traditional thermosensitive film product, the present invention provides the resistance to strong wet friction thermosensitive film of one kind and its system
Make method.The resistance to strong wet friction thermosensitive film is successively coated with prime coat, heat-sensitive layer, water-resistant layer, printing adaptation layer on basement membrane, wherein
Prime coat, heat-sensitive layer and printing adaptation layer can be aqueous coating system, be produced after coating using heated-air drying mode, water-resistant layer
For waterborne UV coating, heated-air drying is first passed through after coating, after the drying of coating moisture, further uses UV lamp solidify coating.Specifically
Technical solution is as follows:
The present invention provides a kind of resistance to strong wet friction thermosensitive film, including basement membrane, is coated on epilamellar prime coat, is coated on prime coat
On heat-sensitive layer；Water-resistant layer and printing adaptation layer are also successively coated with above the heat-sensitive layer.
As a preferred technical solution of the invention, the basement membrane is a sub- light one or dual light or two-sided matt BOPP
Former film；The bottoming layer component includes acrylic resin or acrylic resin and hollow sphere plastic pigments mixture；The heat
Photosensitive layer component includes acrylic resin and/or modified polyvinylalcohol；The water-fast layer component includes waterborne UV coating；The printing
Adapting to layer component includes zinc stearate lubricant, water-washed kaoline, water-based acrylic resin, the pure and mild crosslinking agent of modified poly ethylene.
As a preferred technical solution of the invention, resistance to strong wet friction thermosensitive film above-mentioned, acrylic acid in prime coat
Resin solid content accounts for 50% or more of this layer of total component solid quality；Acrylic resin in the temperature-sensitive layer component and/or change
Property polyvinyl alcohol solid content accounts for 20% or more of this layer of total solid quality.
The present invention also provides a kind of resistance to strong wet friction temperature-sensitive film manufacturing methods, are used to prepare above-mentioned resistance to strong wet friction temperature-sensitive
Film comprising steps are as follows:
S1: prepare basement membrane: selecting the Asia of a light one or dual light or the BOPP original film of two-sided matt as basement membrane.
S2: preparation bottoming coating: being added hollow ball in preparation tank, and water-based acrylic resin cream is added in starting stirring
Liquid, calcium stearate lubricant and defoaming agent after stirring 40min under 100~150rpm speed, measure coating solid content, shape
It is spare at prime coat coating fluid；
S3: preparation temperature-sensitive coating: being added a small amount of water in preparation tank, and starting stirring sequentially adds dispersing agent, inorganic pigment point
Dispersion liquid, color developing agent lapping liquid, leuco dye lapping liquid and sensitizer lapping liquid stir 40min under 300rpm revolving speed, then successively plus
Enter PVA glue, cross-linking agent solution, wetting agent, lubricant, defoaming agent, continue to stir 30min, detects coating solids and add water
It is adjusted to preset value, forms heat-sensitive layer coating fluid, it is spare；
S4: it prepares water-fast coating: finished product waterborne UV coating being added in preparation tank, wetting agent and defoaming is added in starting stirring
Agent stirs 20min under 100~150rpm speed, adds water adjusting coating solid content to preset value, forms water-resistant layer coating
Liquid, it is spare；
S5: preparation printing adapts to coating: adding water in preparation tank, starts stirring, sequentially add sodium polyacrylate disperant, water
Wash kaolin dispersion liquid, water-based acrylic resin lotion, modified PVA solution, octylphenol ethoxylate wetting agent, zinc stearate
Lubricant, crosslinking agent and polyethers defoaming agent continue to stir 40min under 100~150rpm velocity conditions, form printing and adapt to
Layer coating fluid, it is spare；
S6: be coated with each coating: each layer coating fluid that step S2 is prepared into step S5 is squeezed into trough of coating machine respectively, is used
Gauge stick or reticulate pattern roller coating method be successively coated on the basement membrane in step sl prime coat, heat-sensitive layer, water-resistant layer with
And and printing adaptation layer, the prime coat, heat-sensitive layer and printing adaptation layer be all made of heated-air drying mode and produce, the water-resistant layer
It first passes through heated-air drying and uses UV lamp solidify coating.
As a preferred technical solution, in step S1, the bottoming coating each component by weight, is respectively as follows:
Hollow ball: 30~45 parts, emulsion acrylic resin: 50~65 parts, calcium stearate lubricant: 3~5 parts, defoaming agent: 1~2 part.
As a preferred technical solution, in step S1, the prime coat Acrylic Resin in Coatings solid content accounts for the layer
50% or more of total component solid quality.
As a preferred technical solution, in step S2, the temperature-sensitive coating each component by weight, is respectively as follows:
Dispersing agent: 1~2 part, inorganic pigment dispersion liquid: 25~30 parts, color developing agent lapping liquid: 25~30 parts, leuco dye lapping liquid: 12
~20 parts, sensitizer lapping liquid: 10~15 parts, PVA glue: 10~20 parts, cross-linking agent solution: 1~2 part, wetting agent: 1~2
Part, lubricant: 2~3 parts, defoaming agent: 0.5~1 part.
As a preferred technical solution, in step S2, the inorganic pigment dispersion liquid each component includes: nothing by weight
Machine dispersing agent: 1~2 part, polyethers defoaming agent: 0.3~0.5 part, precipitated calcium carbonate: 98~99 parts.
As a preferred technical solution, in step S2, the PVA glue each component includes: that polyethers disappear by weight
Infusion: 0.5~0.8 part, modified PVA: 99.2~99.5 parts.
As a preferred technical solution, in step S2, the PVA glue is readily modified as acrylic resin, or both it is mixed,
And the solid content of the two accounts for 20% or more of this layer of total solid quality.
Water-fast coating each component described in step S3 by weight, is respectively as follows: water as a preferred technical solution,
Property UV coating: 97~98 parts, wetting agent: 1~2 part, defoaming agent: 0.5~1 part.
Printing described in step S4 adapts to coating each component by weight as a preferred technical solution, respectively
Are as follows: sodium polyacrylate disperant: 1~2 part, water-washed kaoline dispersion liquid: 25~30 parts, water-based acrylic resin: 20~40 parts,
Modified PVA solution: 20~40 parts, octylphenol ethoxylate wetting agent: 2~3 parts, zinc stearate lubricant: 8~15 parts, friendship
Join agent: 2~3 parts, polyethers defoaming agent: 0.3~0.5 part.
Substrate described in step S5 is BOPP basement membrane as a preferred technical solution,；The coating weight of the prime coat is 1.0
~2.0 g/m2；The coating weight of the heat-sensitive layer is 3.0~5.0 g/m2；The coating weight of the water-resistant layer is 0.5~1.0g/m2；
The printing adaptation layer coating weight is 0.5~1.0g/m2。
The beneficial effects of the present invention are:
Relatively traditional thermosensitive film product, the present invention have following advantage:
Firstly, the present invention is designed temperature-sensitive film covering structure and each coating formula technique, water used in increased water-resistant layer
Property UV coating in acrylic resin prepolymer molecule structure containing hydrophilic radical it is less, UV solidification after coating hydrophobicity very
Height maintains the extremely strong moisture-proof of thermal printing image so that influence of the water to heat-sensitive layer and prime coat be isolated in water-resistant layer
Frictional behaviour all has good barrier property to the unfavorable ingredient of thermosensitive color development for water, oils and plasticizer etc..Secondly, this hair
It is bright to increase printing adaptation layer, so that product is preferably adapted to the printing requirement of different printing devices, and to printing ink
Adaptability.
Experiments verify that thermosensitive film print image of the present invention has extremely strong moisture-proof frictional behaviour, coated using 500g counterweight
After rubbing 100 times after wet nonwoven water, the bar code printed still keeps complete readable.Manufacturing method of the present invention improves temperature-sensitive
The protective performance of film image, using the method for the present invention manufacture thermosensitive film printing bar code respectively in water impregnate 72h, oil in impregnate
For 24 hours and with after PVC film engaged test for 24 hours, colour developing retention rate is up to 95% or more, has excellent use value.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of resistance to strong wet friction thermosensitive film of the present invention.
In figure: 1, basement membrane, 2, prime coat, 3, heat-sensitive layer, 4, water-resistant layer, 4, printing adaptation layer.
Specific embodiment
Clearly to illustrate the object, technical solutions and advantages of the present invention, below in conjunction with embodiment, to the present invention
Technical solution be clearly and completely described.
Embodiment 1:
A kind of resistance to strong wet friction thermosensitive film, as shown in Figure 1, it includes basement membrane 1, prime coat 2, heat-sensitive layer 3, water-resistant layer from bottom to top
4 and printing adaptation layer 5.Wherein, the basement membrane is a sub- light one or dual light or two-sided matt BOPP original film；The prime coat 2
It is coated with for the coating containing acrylic resin or acrylic resin and hollow sphere plastic pigments mixture in component；It is described
Heat-sensitive layer 3 is that component contains acrylic resin and/or the coating of modified polyvinylalcohol is coated with；The water-resistant layer 4 uses water
Property UV coating coating；The printing adaptation layer 5 contains zinc stearate lubricant, water-washed kaoline, water soluble acrylic acid using component
The coating of the pure and mild crosslinking agent of resin, modified poly ethylene is coated with.And acrylic resin solid content accounts for the layer in the prime coat 2
50% or more of total component solid quality；Acrylic resin and/or modified polyvinylalcohol solid in 3 component of heat-sensitive layer
Object accounts for 20% or more of this layer of total solid quality.
Embodiment 2: preparation bottoming coating
Firstly, bottoming coating each component is weighed by following parts by weight, and hollow ball: 30~45 parts, emulsion acrylic resin: 50~
65 parts, calcium stearate lubricant: 3~5 parts, defoaming agent: 1~2 part.Then, hollow ball is added in preparation tank, starting is stirred,
Water-based acrylic resin lotion, calcium stearate lubricant and defoaming agent are added, after stirring 40min under 100~150rpm speed,
Coating solid content is measured, prime coat coating fluid is formed, it is spare.
Embodiment 3: preparation inorganic pigment dispersion liquid
Firstly, inorganic pigment dispersion liquid each component is weighed by following parts by weight, and inorganic dispersant: 1~2 part, polyethers defoaming agent:
0.3~0.5 part, precipitated calcium carbonate: 98~99 parts.Then, water is added in dispersion tank, starts stirring, inorganic dispersant is added, disappears
Infusion, precipitated calcium carbonate, high speed dispersion 60min form dispersible pigment dispersion, spare.
Embodiment 4: preparation PVA glue
Firstly, PVA glue each component is weighed by following parts by weight, and polyethers defoaming agent: 0.5~0.8 part, modified PVA: 99.2~
99.5 parts.Then, water is added in heating and stirring tank, starts stirring, polyethers defoaming agent and modified PVA pulvis is added, wherein changing
Property PVA pulvis will be slowly added to；It is then slowly heated and is warming up to 90~95 DEG C, heat preservation is completely dissolved up to PVA, forms PVA glue
Liquid, it is spare.
Embodiment 5: preparation temperature-sensitive coating
Firstly, weigh temperature-sensitive coating each component by following parts by weight, dispersing agent: 1~2 part, the inorganic pigment for preparing of embodiment 3
Dispersion liquid: 25~30 parts, color developing agent lapping liquid: 25~30 parts, leuco dye lapping liquid: 12~20 parts, sensitizer lapping liquid: 10
~15 parts, embodiment 4 prepare PVA glue: 10~20 parts, cross-linking agent solution: 1~2 part, wetting agent: 1~2 part, lubricant: 2
~3 parts, defoaming agent: 0.5~1 part.Then, it is added a small amount of water in preparation tank, starting stirring sequentially adds dispersing agent, inorganic
Dispersible pigment dispersion, color developing agent lapping liquid, leuco dye lapping liquid and sensitizer lapping liquid stir under 300rpm/min revolving speed
40min sequentially adds PVA glue, cross-linking agent solution, wetting agent, lubricant, defoaming agent, continues to stir 30min, detection applies
Material solid content simultaneously adds water to be adjusted to preset value, forms heat-sensitive layer coating fluid, spare.
Embodiment 6: water-fast coating is prepared
Firstly, water-fast coating each component is weighed by following parts by weight, and waterborne UV coating: 97~98 parts, wetting agent: 1~2 part,
Defoaming agent: 0.5~1 part.Then, finished product waterborne UV coating is added in preparation tank, wetting agent and defoaming is added in starting stirring
Agent stirs 20min under 100~150rpm speed, adds water adjusting coating solid content to preset value, forms water-resistant layer coating
Liquid, it is spare.
Embodiment 7: preparation printing adapts to coating
Firstly, weighing printing by following parts by weight adapts to coating each component, sodium polyacrylate disperant: 1~2 part, washing height
Ridge soil dispersion liquid: 25~30 parts, water-based acrylic resin: 20~40 parts, modified PVA solution: 20~40 parts, octyl phenol ethyoxyl
Compound wetting agent: 2~3 parts, zinc stearate lubricant: 8~15 parts, crosslinking agent: 2~3 parts, polyethers defoaming agent: 0.3~0.5
Part.Then, water is added in preparation tank, stirring is started, sequentially adds sodium polyacrylate disperant, water-washed kaoline dispersion liquid, water
Property emulsion acrylic resin, modified PVA solution, octylphenol ethoxylate wetting agent, zinc stearate lubricant, crosslinking agent and poly-
Ethers defoaming agent continues under 100~150rpm speed to stir 40min under stirring condition, forms printing adaptation layer coating fluid, standby
With.
Embodiment 8: the resistance to strong wet friction thermosensitive film of manufacture
Select the Asia of a light one or dual light or two-sided matt BOPP original film for coating basement membrane 1, by what is prepared in embodiment 2,5,6,7
Each layer coating fluid is squeezed into trough of coating machine respectively, is successively applied on BOPP basement membrane using gauge stick or reticulate pattern roller coating method
Cloth prime coat 2, heat-sensitive layer 3, water-resistant layer 4 and and printing adaptation layer 5, the prime coat 2, heat-sensitive layer 3 and printing suitable 5 answer layer equal
It is produced using heated-air drying mode, the water-resistant layer 4 first passes through heated-air drying and uses UV lamp solidify coating.Wherein, the bottoming
The coating weight of layer 2 is 1.0~2.0 g/m2, make it with a thickness of 2-3 μm；The coating weight of the heat-sensitive layer 3 is 3.0~5.0 g/m2,
Make it with a thickness of 3-4 μm；The coating weight of the water-resistant layer 4 is 0.5~1.0g/m2, make it with a thickness of 0.5-1 μm；The printing
The coating weight of adaptation layer 5 is 0.5~1.0g/m2, make it with a thickness of 0.5-1 μm.
Embodiment 9: moisture-proof frictional property test
The resistance to strong wet friction thermosensitive film printing bar code that will be made in embodiment 8, then coats wet nonwoven water using 500g counterweight
It rubs 100 times, is then scanned using bar code code reader afterwards, result still keeps complete readable for the bar code printed.
Embodiment 10: protective performance test
Then the resistance to strong wet friction thermosensitive film printing bar code that will be made in embodiment 8 impregnates 72h in water respectively, impregnates in oil
For 24 hours for 24 hours and with PVC film engaged test, its color developing effect is observed, result is up to 95% or more for its retention rate that develops the color.
Experiments verify that thermosensitive film print image of the present invention has extremely strong moisture-proof frictional behaviour, manufacturing method of the present invention is mentioned
The high protective performance of temperature-sensitive film image, has excellent use value.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive.Although in addition, it should be understood that originally
Specification is described in terms of embodiments, but only includes not one technical solution, and this narrating mode of specification is only
It is only for clarity that the skilled in the art should refer to the specification as a whole, the technical solution in embodiment can also
To be properly combined, form other embodiments that can be understood by those skilled in the art.
Claims (10)
1. a kind of resistance to strong wet friction thermosensitive film, it is characterised in that: including basement membrane, be coated on epilamellar prime coat, be coated on and beat
Heat-sensitive layer on bottom；Water-resistant layer and printing adaptation layer are also successively coated with above the heat-sensitive layer.
2. resistance to strong wet friction thermosensitive film according to claim 1, it is characterised in that: the prime coat is to contain acrylic acid tree
The coating of rouge or acrylic resin and hollow sphere plastic pigments mixture is coated with；Contain in the temperature-sensitive layer component component
Acrylic resin and/or modified polyvinylalcohol；The water-resistant layer is that waterborne UV coating is coated with；The printing adapts to layer component
In contain zinc stearate lubricant, water-washed kaoline, water-based acrylic resin, the pure and mild crosslinking agent of modified poly ethylene.
3. resistance to strong wet friction thermosensitive film according to claim 1, it is characterised in that: acrylic resin is solid in the prime coat
Shape object accounts for 50% or more of this layer of total component solid quality；Acrylic resin and/or modified poly- second in the temperature-sensitive layer component
Enol solid content accounts for 20% or more of this layer of total solid quality.
4. a kind of resistance to strong wet friction temperature-sensitive film manufacturing method, it is characterised in that: comprise the following steps that
S1: prepare basement membrane: selecting the Asia of a light one or dual light or the BOPP original film of two-sided matt as basement membrane；
S2: preparation bottoming coating: being added hollow sphere plastic pigments mixture in preparation tank, and starting stirring is added aqueous third
Olefin(e) acid resin emulsion, calcium stearate lubricant and defoaming agent, stirring measurement coating solid content, form prime coat coating fluid,
It is spare；
S3: preparation temperature-sensitive coating: being added a small amount of water in preparation tank, and starting stirring sequentially adds dispersing agent, inorganic pigment point
Dispersion liquid, color developing agent lapping liquid, leuco dye lapping liquid and sensitizer lapping liquid stir 40min under 300rpm revolving speed, then successively plus
Enter PVA glue, cross-linking agent solution, wetting agent, lubricant, defoaming agent, continue to stir 30min, detects coating solids and add water
It is adjusted to preset value, forms heat-sensitive layer coating fluid, it is spare；
S4: it prepares water-fast coating: finished product waterborne UV coating being added in preparation tank, wetting agent and defoaming is added in starting stirring
Agent, 100~150rpm stir 20min, add water adjusting coating solid content to preset value, formation water-resistant layer coating fluid is spare；
S5: preparation printing adapts to coating: adding water in preparation tank, starts stirring, sequentially add sodium polyacrylate disperant, water
Wash kaolin dispersion liquid, water-based acrylic resin lotion, modified PVA solution, octylphenol ethoxylate wetting agent, zinc stearate
Lubricant, crosslinking agent and polyethers defoaming agent continue to stir 40min, form printing adaptation layer coating fluid, spare；
S6: be coated with each coating: each layer coating fluid that step S2 is prepared into step S5 is squeezed into trough of coating machine respectively, is used
Gauge stick or reticulate pattern roller coating method be successively coated on the basement membrane in step sl prime coat, heat-sensitive layer, water-resistant layer with
And and printing adaptation layer；The prime coat, heat-sensitive layer and printing adaptation layer are all made of heated-air drying mode and produce, the water-resistant layer
It first passes through heated-air drying and uses UV lamp solidify coating.
5. resistance to strong wet friction temperature-sensitive film manufacturing method according to claim 4, it is characterised in that: beaten described in step S2
Bottom coating each component by weight, is respectively as follows: hollow sphere plastic pigments mixture: 30~45 parts, emulsion acrylic resin:
50~65 parts, calcium stearate lubricant: 3~5 parts, defoaming agent: 1~2 part.
6. resistance to strong wet friction temperature-sensitive film manufacturing method according to claim 4, it is characterised in that: heat described in step S3
Photosensitive layer coating each component by weight, is respectively as follows: dispersing agent: 1~2 part, inorganic pigment dispersion liquid: 25~30 parts, color developing agent
Lapping liquid: 25~30 parts, leuco dye lapping liquid: 12~20 parts, sensitizer lapping liquid: 10~15 parts, PVA glue: 10~20
Part, cross-linking agent solution: 1~2 part, wetting agent: 1~2 part, lubricant: 2~3 parts, defoaming agent: 0.5~1 part.
7. resistance to strong wet friction temperature-sensitive film manufacturing method according to claim 4, it is characterised in that: resistance to described in step S4
Water layer coating each component by weight, is respectively as follows: waterborne UV coating: 97~98 parts, wetting agent: 1~2 part, defoaming agent: 0.5
~1 part.
8. resistance to strong wet friction temperature-sensitive film manufacturing method according to claim 4, it is characterised in that: beaten described in step S5
Print adapts to coating each component by weight, is respectively as follows: sodium polyacrylate disperant: 1~2 part, water-washed kaoline dispersion liquid:
25~30 parts, water-based acrylic resin: 20~40 parts, modified PVA solution: 20~40 parts, octylphenol ethoxylate wetting agent:
2~3 parts, zinc stearate lubricant: 8~15 parts, crosslinking agent: 2~3 parts, polyethers defoaming agent: 0.3~0.5 part.
9. the resistance to strong wet friction temperature-sensitive film manufacturing method according to claim 4 or 6, it is characterised in that: the inorganic pigment
Dispersion liquid each component includes: inorganic dispersant by weight: 1~2 part, polyethers defoaming agent: 0.3~0.5 part, lightweight carbonic acid
Calcium: 98~99 parts；The PVA glue each component includes: polyethers defoaming agent by weight: 0.5~0.8 part, modified PVA:
99.2~99.5 parts.
10. resistance to strong wet friction temperature-sensitive film manufacturing method according to claim 4, it is characterised in that: described to beat in step S6
The coating weight of bottom is 1.0~2.0 g/m2；The coating weight of the heat-sensitive layer is 3.0~5.0 g/m2；The coating of the water-resistant layer
Amount is 0.5~1.0g/m2；The printing adaptation layer coating weight is 0.5~1.0g/m2。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910469589.2A CN110103603B (en) | 2019-05-31 | 2019-05-31 | Strong wet friction heat-sensitive film and manufacturing method thereof |
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