CN109898366A - A kind of heat-sensitive paper and preparation method thereof - Google Patents
A kind of heat-sensitive paper and preparation method thereof Download PDFInfo
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- CN109898366A CN109898366A CN201711289727.6A CN201711289727A CN109898366A CN 109898366 A CN109898366 A CN 109898366A CN 201711289727 A CN201711289727 A CN 201711289727A CN 109898366 A CN109898366 A CN 109898366A
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Abstract
The invention discloses a kind of heat-sensitive paper and preparation method thereof, which includes: original paper layer, precoated shet and chromonic layer, and precoated shet and chromonic layer are sequentially formed on original paper layer；Precoated shet is formed by coating precoating coating, and precoating coating includes the first filler, the first adhesive and defoaming agent；Chromonic layer is formed by being coated with color development coating, color development coating includes disperse oxidant liquid, sensitization agent dispersing liquid, dye dispersion liquid, lubricant, the second adhesive and the second filler, wherein, the second adhesive is any lotion or any mixture in the copolymer of acrylic resin, styrenated acrylic resin, polyurethane-acrylic resin, acrylate/methacrylate.By the above-mentioned means, the present invention can be improved the moisture-proof frictional behaviour of heat-sensitive paper.
Description
Technical field
The present invention relates to pulp technology for making paper, more particularly to a kind of heat-sensitive paper and preparation method thereof.
Background technique
Heat-sensitive paper is used exclusively on thermal printer and the printing paper of thermal fax machines, and in recent years, heat-sensitive paper is continuous
It is applied to all trades and professions, such as communication, medical treatment, logistics, Shang Chao, dining room field.
Currently used heat-sensitive paper can substantially meet the use demand of people.However, present inventor is grinding
It is found during hair, major part heat-sensitive paper used at present rubs bar code or the picture and text etc. that will lead on heat-sensitive paper after meeting water
It is smudgy, cause the information on heat-sensitive paper that can not identify.
Summary of the invention
The invention mainly solves the technical problem of providing a kind of heat-sensitive papers and preparation method thereof, to improve the resistance to of heat-sensitive paper
Wet friction performance.
In order to solve the above technical problems, one technical scheme adopted by the invention is that: a kind of heat-sensitive paper, the temperature-sensitive are provided
Paper includes: original paper layer, precoated shet and chromonic layer, and the precoated shet and the chromonic layer are sequentially formed on the original paper layer；Institute
It states precoated shet to be formed by coating precoating coating, the precoating coating includes the first filler, the first adhesive and defoaming agent；It is described
Chromonic layer is formed by being coated with color development coating, and the color development coating includes disperse oxidant liquid, sensitization agent dispersing liquid, dyestuff dispersion
Liquid, lubricant, the second adhesive and the second filler, wherein second adhesive is acrylic resin, phenylethene modified propylene
Acid resin, polyurethane-acrylic resin, acrylate/methacrylate copolymer in any lotion or any mixing
Object.
Wherein, the coating weight of the precoated shet is 5~15g/m2, the coating weight of the chromonic layer is 3~10g/m2。
Wherein, the solid content of the precoated shet is 30~40%；First filler is 100 mass parts, first glue
Glutinous agent is 5~35 mass parts, the defoaming agent is 0.2~2 mass parts；
Wherein, first filler is precipitated calcium carbonate, silica, calcined kaolin, sheet carclazyte, hollow plastic face
At least one of material；First adhesive is acrylic resin, styrenated acrylic resin, polyurethane-acrylate
Resin, acrylate/methacrylate copolymer in any lotion or any mixture；The defoaming agent is that polyethers is more
First alcohols, fatty acid lipid, any one in non-organic silicon class.
Wherein, the disperse oxidant liquid is 10~40 mass parts, the sensitization agent dispersing liquid is 10~40 mass parts, institute
State that dye dispersion liquid is 5~10 mass parts, the lubricant is 3~10 mass parts, second adhesive is 4~20 mass
Part, 10~100 mass parts of the second filler；Wherein, the disperse oxidant liquid is 30~45 mass parts of oxidant, polyethylene
The mixed liquor for 30%~50% concentration that 3~4 mass parts of alcohol are hybridly prepared into；The sensitization agent dispersing liquid is sensitizer 30~45
The mixed liquor for 35%~45% concentration that mass parts, 3~4 mass parts of polyvinyl alcohol are hybridly prepared into；The dye dispersion liquid is
The mixed liquor for 42%~47% concentration that 30~45 mass parts of leuco dye, 3~4 mass parts of polyvinyl alcohol are hybridly prepared into.
Wherein, the oxidant is bisphenol-A, N- (p-toluenesulfonyl)-N'- (3- tolysulfonyl oxygen phenyl) urea, urine
At least one of plain carbamate compounds；The sensitizer is 1,2- biphenoxyl ethane, diphenyl sulphone (DPS), stearic acid acyl
At least one of amine, 1,2- bis- (3- methylphenoxy) ethane；The leuco dye is 2- (2-4- dimethylbenzene amido) -3- first
Base -6- lignocaine fluorane, one 6- dibutylamino fluoran of 2- anilino- -3- methyl, 2- anilino- -3- methyl -6- (N- second
Base-N- propylcarbamic) any one in fluorane；Second filler is calcium carbonate, silica, calcined kaolin, sheet
Carclazyte, titanium dioxide, at least one of hollow plastic pigment；The lubricant is zinc stearate, calcium stearate, atoleine
In any lotion or any mixture.
Wherein, the partial size of the disperse oxidant liquid is 1.0~1.5 μm；It is described sensitization agent dispersing liquid partial size be 1.0~
1.7μm；1.2~2.0 μm of the partial size of the dye dispersion liquid.
In order to solve the above technical problems, another technical solution used in the present invention is: providing a kind of heat-sensitive paper preparation side
Method, which comprises body paper, precoating coating and color development coating are provided respectively；By the precoating coating and the color development coating
It is successively coated on the body paper surface, is respectively formed the precoated shet being sequentially coated on original paper layer and chromonic layer, obtains the heat
Quick paper；Wherein, the precoating coating includes the first filler, the first adhesive and defoaming agent；The color development coating includes oxidant
Dispersion liquid, sensitization agent dispersing liquid, dyestuff dispersion, lubricant, the second adhesive and the second filler, wherein second adhesive
It is total to for acrylic resin, styrenated acrylic resin, polyurethane-acrylic resin, acrylate/methacrylate
Any lotion or any mixture in polymers.
Wherein, offer precoating coating include: will be first described in the first filler, 5~35 mass parts described in 100 mass parts
Defoaming agent described in adhesive and 0.2~2 mass parts is mixed into the precoating coating of 30~40% solid contents in high-speed stirred；
The offer color development coating includes: to prepare the disperse oxidant liquid, the sensitization agent dispersing liquid and dyestuff dispersion respectively
Liquid；By sensitization agent dispersing liquid, 5~10 mass parts dye described in disperse oxidant liquid, 10~40 mass parts described in 10~40 mass parts
Expect second described in lubricant described in dispersion, 3~10 mass parts, the second adhesive and 10~100 mass parts described in 4~20 mass parts
Filler is mixed into the color development coating.
Wherein, the preparation disperse oxidant liquid includes: by oxidant described in 30~45 mass parts, 3~4 mass parts
Polyvinyl alcohol is ground in controlling wet-type finishing machine, forms the disperse oxidant that partial size is 1.0~1.5 μm, concentration is 30%~50%
Liquid；The preparation sensitization agent dispersing liquid includes: that sensitizer described in 30~45 mass parts, 3~4 mass parts polyvinyl alcohol exist
It is ground in controlling wet-type finishing machine, forms the sensitization agent dispersing liquid that partial size is 1.0~1.7 μm, concentration is 35%~45%；It is described
Preparing the dye dispersion liquid includes: by 30~45 mass parts leuco dyes, 3~4 mass parts polyvinyl alcohol in controlling wet-type finishing machine
Middle grinding is formed as 1.2~2.0 μm, the dyestuff point that concentration is 42%~47%.
Wherein, the precoated shet coating weight is 5~15g/m2, the chromonic layer coating weight is 3~10g/m2。
The beneficial effects of the present invention are: being in contrast to the prior art, heat-sensitive paper of the present invention includes: original paper layer, precoating
Layer and chromonic layer, precoated shet and chromonic layer are sequentially formed on original paper layer；Precoated shet is formed by coating precoating coating, and precoating applies
Material includes the first filler, the first adhesive and defoaming agent；Chromonic layer is formed by being coated with color development coating, and color development coating includes oxidation
Agent dispersing liquid, sensitization agent dispersing liquid, dye dispersion liquid, lubricant, the second adhesive and the second filler, wherein the second adhesive
It is total to for acrylic resin, styrenated acrylic resin, polyurethane-acrylic resin, acrylate/methacrylate
At least one of polymers.By the above-mentioned means, the present invention selects acrylic resin, styrenated acrylic in chromonic layer
Resin, polyurethane-acrylic resin, acrylate/methacrylate copolymer in any lotion or any mixture
For adhesive, crylic acid resin latex, there is better water-resistance, insulating and adhesiveness, meeting water friction heat-sensitive paper
Precoated shet and chromonic layer are not easily to fall off, so as to improve the moisture-proof frictional behaviour of heat-sensitive paper.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.Wherein:
Fig. 1 is the structural schematic diagram of one embodiment of heat-sensitive paper of the present invention；
Fig. 2 is the flow diagram of one embodiment of preparation method of heat-sensitive paper of the present invention；
Fig. 3 is that the process of offer color development coating in one embodiment of preparation method of heat-sensitive paper of the present invention is shown
It is intended to.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, rather than whole embodiments.Based on this
Embodiment in invention, those of ordinary skill in the art are obtained every other under the premise of not making creative labor
Embodiment shall fall within the protection scope of the present invention.
Heat-sensitive paper is a kind of processing paper, and one layer " thermo colour " is coated on good body paper and is formed, be otherwise known as temperature-sensitive
Facsimile transmission paper, electrothermal sensitive recording paper, thermography paper etc..Carrier of the heat-sensitive paper as transmitting information common in current daily life,
In some cases, such as dining room, supermarket can encounter water during transmitting, can generate friction in the case where taking and passing, will lead to
Pattern and text on paper are fuzzy, can not identify, as label is met during transportation after water, there may be frictions, lead to pattern
It is fuzzy with text, make article be difficult to be sent in the hand of addressee.
To solve the above problems, the present invention proposes a kind of heat-sensitive paper, as shown in Figure 1, Fig. 1 is that heat-sensitive paper one of the present invention is implemented
The structural schematic diagram of example.The present embodiment heat-sensitive paper 101 includes: original paper layer 102, precoated shet 103 and chromonic layer 104, precoated shet 103
And chromonic layer 104 is sequentially formed on original paper layer 102.
The effect of the precoated shet 103 of the present embodiment is covering original paper layer 102, to improve the face sense of paper, meanwhile, it is capable to make
Contact heat-sensitive paper 101 in print head and when by its energy transmission to heat-sensitive paper 101, by more energy barriers and be retained in
The effect of chromonic layer 104, raising chromonic layer 104, and then improve the printing effect of heat-sensitive paper 101.Wherein, precoated shet 103 passes through
Coating precoating coating is formed, and precoating coating includes the first filler, the first adhesive and defoaming agent.Wherein, filler can be plastics
Filler, such as GB plastic filler, SR plastic filler, plastic filler have excellent heat-resisting heat-proof quality.
The effect of the chromonic layer 104 of the present embodiment is: when printer prints, print head fever transfers energy to color development
In layer 104, reach the activation energy needed for oxidant, leuco dye and sensitizer react, reaction generates coloured substance, in temperature-sensitive
Corresponding figure or text are provided on paper 101.The chromonic layer 104 of the present embodiment is formed by being coated with color development coating, and color development applies
Material includes disperse oxidant liquid, sensitization agent dispersing liquid, dye dispersion liquid, lubricant, the second adhesive and the second filler, wherein
Second adhesive is acrylic resin, styrenated acrylic resin, polyurethane-acrylic resin, acrylate/methyl-prop
Any lotion or any mixture in the copolymer of olefin(e) acid ester.
It is different from the prior art, the present embodiment selects acrylic resin, styrenated acrylic tree in chromonic layer 104
Rouge, polyurethane-acrylic resin, acrylate/methacrylate copolymer in any lotion or any mixture be
Adhesive, crylic acid resin latex have better water-resistance, insulating and adhesiveness, are meeting water friction heat-sensitive paper 101
Precoated shet 103 and chromonic layer 104 are not easily to fall off, so as to improve the moisture-proof frictional behaviour of heat-sensitive paper 101.
Wherein, in one embodiment, 103 coating weight of precoated shet is 5~15g/m2, specifically can be 5g/m2、7.5g/m2、
10g/m2、12.5g/m2、15g/m2Deng；The coating weight of chromonic layer 104 is 3~10g/m2, specifically can be 3g/m2、5g/m2、7g/
m2、10g/m2Deng.
Wherein, in one embodiment, the solid content of precoated shet is 30~40%, specifically can be 30%, 32.5%,
35%, 37.5%, 40% etc.；Precoating the first filler in coating is 100 mass parts；First adhesive is 5-35 mass parts, tool
Body can be 5,15,25,35 mass parts etc.；Defoaming agent is 0.2~2 mass parts, specifically can be 0.2,0.8,1.4,2 mass
Deng user can select dosage appropriate according to their own needs.
Wherein, in one embodiment, filler can be precipitated calcium carbonate, silica, calcined kaolin, sheet carclazyte,
At least one of hollow plastic pigment；First adhesive is acrylic resin, styrenated acrylic resin, polyurethane-
Acrylic resin, acrylate/methacrylate copolymer in any lotion or any mixture；Defoaming agent is polyethers
Polyalcohols, fatty acid lipid, any one in non-organic silicon class.
Wherein, in one embodiment, the disperse oxidant liquid in color development coating is 10~40 mass parts, specifically be can be
10,20,30,40 mass parts etc.；Sensitization agent dispersing liquid is 10~40 mass parts, specifically can be 10,20,30,40 mass parts etc.；
Dye dispersion liquid is 5~10 mass parts, specifically can be 5,6,7,8,9,10 mass parts etc.；Lubricant is 3~10 mass parts, tool
Body can be 3,5,7,10 mass parts etc.；Second adhesive is 4~20 mass parts, specifically can be 4,8,12,16,20 mass parts
Deng；Second filler, 10~100 mass parts specifically can be 10,40,70,100 mass parts etc., and user can be according to their own needs
Select dosage appropriate.
Wherein, in one embodiment, disperse oxidant liquid is after oxidant is prepared with polyvinyl alcohol, in wet lapping
The mixed liquor of certain particle size is ground in machine.Oxidant is 30~45 mass parts, specifically can be 30,35,40,45 mass
Part etc.；3~4 mass parts of polyvinyl alcohol specifically can be 3,3.3,3.6,4 mass parts etc.；Oxidant is mixed with polyethylene
Concentration is 30%~50%, specifically can be 30%, 35%, 40%, 45%, 50% etc., user can select according to their own needs
Select dosage appropriate；The partial size of disperse oxidant liquid is 1.0~1.5 μm, specifically can be 1.0 μm, 1.2 μm, 1.3 μm, 1.4 μ
M, 1.5 μm etc..
Being sensitized agent dispersing liquid is that after sensitizer is prepared with polyvinyl alcohol, certain partial size is ground in controlling wet-type finishing machine
The mixed liquor of size.Sensitizer is 30~45 mass parts, specifically can be 30,35,40,45 mass parts etc.；Polyvinyl alcohol be 3~
4 mass parts specifically can be 3,3.3,3.6,4 mass parts etc.；Concentration after sensitizer and polyvinyl alcohol is 35%~
45%, it specifically can be 35%, 40%, 45% etc., user can select dosage appropriate according to their own needs；Sensitizer dispersion
The partial size of liquid is 1.0~1.7 μm, specifically can be 1.0 μm, 1.3 μm, 1.5 μm, 1.7 μm etc..
Dye dispersion liquid is that after leuco dye is prepared with polyvinyl alcohol, certain partial size is ground in controlling wet-type finishing machine
The mixed liquor of size.Leuco dye is 30~45 mass parts, specifically can be 30,35,40,45 mass parts etc.；Polyvinyl alcohol is 3
~4 mass parts specifically can be 3,3.3,3.6,4 mass parts etc.；Concentration after leuco dye and polyvinyl alcohol is 42%
~47%, it specifically can be 42%, 43%, 44%, 45%, 46%, 47% etc., user can select suitably according to their own needs
Dosage；The partial size of dye dispersion liquid is 1.2~2.0 μm, specifically can be 1.2 μm, 1.4 μm, 1.6 μm, 1.8 μm, 2.0 μm
Deng.
Wherein, in one embodiment, oxidant is bisphenol-A, N- (p-toluenesulfonyl)-N'- (3- tolysulfonyl oxygen benzene
Base) urea, at least one of urea carbamate compounds；Sensitizer is 1,2- biphenoxyl ethane, diphenyl sulphone (DPS), stearic acid
At least one of amide, 1,2- bis- (3- methylphenoxy) ethane；Leuco dye is 2- (2-4- dimethylbenzene amido) -3- first
Base -6- lignocaine fluorane, one 6- dibutylamino fluoran of 2- anilino- -3- methyl, 2- anilino- -3- methyl -6- (N- second
Base-N- propylcarbamic) any one in fluorane；Second filler be calcium carbonate, silica, calcined kaolin, sheet carclazyte,
Titanium dioxide, at least one of hollow plastic pigment；Lubricant is zinc stearate, calcium stearate, any in atoleine
Lotion or any mixture.
Wherein, the second adhesive and the first adhesive may be the same or different；Second filler and the first filler can
With identical, can also be different.
Wherein, in one embodiment, heat-sensitive paper 101 still further comprises protective layer (not shown), and protective layer passes through coating
Protective coating is formed in chromonic layer 104.
The dense coating that the latex class adhesive of heat-sensitive paper 101 can be formed on paper coating in the present embodiment is assigned and being applied
The performance of the resistance to wet friction of layer, reaching text and pattern after paper chance water rubs can recognize.
Referring to Fig. 2, Fig. 2 is the flow diagram of one embodiment of heat-sensitive paper preparation method of the present invention, this method comprises:
Step S201: body paper, precoating coating and color development coating are provided respectively；
Wherein, in the present embodiment, for providing the sequencing of body paper, precoating coating and color development coating without limitation.
Step S202: precoating coating and color development coating are successively coated on body paper surface, is respectively formed and is sequentially coated on original
Precoated shet 103 and chromonic layer 104 on paper layer 102, obtain heat-sensitive paper 101.
The coated formation precoated shet 103 of coating is precoated, body paper surface is directly overlayed；Hair is formed after color development coating is coated
Chromatograph 104 is covered on precoated shet 103.
Certainly, it can also be coated with protective coating warp in chromonic layer 104 in other embodiments, forming protective layer, (figure is not
Show), the invasion of water, oil is prevented, protective action is risen to heat-sensitive paper 101.
Wherein, precoating coating includes the first filler, the first adhesive and defoaming agent；Color development coating includes disperse oxidant
Liquid, sensitization agent dispersing liquid, dyestuff dispersion, lubricant, the second adhesive and the second filler, wherein second adhesive is third
Olefin(e) acid resin, styrenated acrylic resin, polyurethane-acrylic resin, acrylate/methacrylate copolymer
In any lotion or any mixture.
It should be pointed out that in the present embodiment about precoated shet 103, chromonic layer 104, precoating coating, color development coating etc.
Related content it is identical as in heat-sensitive paper embodiment of the present invention, specifically refer to above-described embodiment, details are not described herein again.
By the above-mentioned means, the present invention selected in chromonic layer 104 acrylic resin, styrenated acrylic resin,
Polyurethane-acrylic resin, acrylate/methacrylate copolymer in any lotion or any mixture be gluing
Agent, crylic acid resin latex have better water-resistance, insulating and adhesiveness, in the precoating for meeting water friction heat-sensitive paper 101
Layer 103 and chromonic layer 104 are not easily to fall off, so as to improve the moisture-proof frictional behaviour of heat-sensitive paper 101.
Wherein, in one embodiment, providing precoating coating includes: by 100 the first fillers of mass parts, 5~35 mass parts the
One adhesive and 0.2~2 mass parts defoaming agent are mixed into the precoating coating of 30~40% solid contents in high-speed stirred.
Specifically, can by the first filler, the first adhesive and high-speed stirred it is uniform, formed precoating coating.
The solid content for precoating coating can be 30%, 32.5%, 35%, 37.5%, 40% etc., can specifically match according to demand
Make the precoating coating of different solid contents.
Wherein, in one embodiment, providing color development coating includes:
Step S301: disperse oxidant liquid, sensitization agent dispersing liquid and dye dispersion liquid are prepared respectively.
Wherein, the sequence of three kinds of dispersion liquids is prepared without limitation.
Step S302: 10~40 mass parts of oxidant dispersion liquids, 10~40 mass parts are sensitized agent dispersing liquid, 5~10 matter
It is mixed to measure the dispersion of part dyestuff, 3~10 mass parts lubricants, 4~20 the second adhesives of mass parts and 10~100 the second fillers of mass parts
Synthesize color development coating.
Wherein, the order of addition of above each substance without limitation, each material mixing together after, cooperation addition it is suitable
Water stirs evenly, and forms color development coating.
Wherein, in the present embodiment, substance needed for providing color development coating is identical as in heat-sensitive paper embodiment of the present invention, specifically
Above-described embodiment is referred to, details are not described herein again.
Wherein, in one embodiment, preparing disperse oxidant liquid includes: by 30~45 mass parts of oxidant, 3~4 mass
Part polyvinyl alcohol is ground in controlling wet-type finishing machine, forms the oxidant point that partial size is 1.0~1.5 μm, concentration is 30%~50%
Dispersion liquid.
Wherein, oxidant specifically can be 30,35,40,45 mass parts etc.；The measurer body of polyvinyl alcohol can be 3,3.3,
3.6,4 mass parts etc., dispersing agent specifically can be polyvinyl alcohol；The concentration of disperse oxidant liquid then can be 30%, 35%,
40%, 45%, 50% etc..
In the present embodiment, oxidant, polyvinyl alcohol, water etc. can be first uniformly mixed, add in controlling wet-type finishing machine and grind
Mill, is also possible to for various substances being directly added into grinder and grind, herein without limitation.
Preparing sensitization agent dispersing liquid includes: to grind 30~45 mass parts sensitizers, 3~4 mass parts polyvinyl alcohol in wet type
It is ground in grinding machine, forms the sensitization agent dispersing liquid that partial size is 1.0~1.7 μm, concentration is 35%~45%.
Wherein, sensitizer specifically can be 30,35,40,45 mass parts etc.；The measurer body of polyvinyl alcohol can be 3,3.3,
3.6,4 mass parts etc.；The concentration of sensitization agent dispersing liquid then can be 35%, 40%, 45% etc..
Preparing dye dispersion liquid includes: to grind 30~45 mass parts leuco dyes, 3~4 mass parts polyvinyl alcohol in wet type
It is ground in grinding machine, forms the dye dispersion liquid that partial size is 1.2~2.0 μm, concentration is 42%~47%.
Wherein, leuco dye specifically can be 30,35,40,45 mass parts etc.；The measurer body of polyvinyl alcohol can be 3,
3.3,3.6,4 mass parts etc.；The concentration of leuco dye dispersion liquid then can be 42%, 43%, 44%, 45%, 46%, 47%
Deng.
In other embodiments, polyvinyl alcohol, and three kinds points in color development coating can be replaced using other dispersion colors
Scattered color can be identical or different.
Wherein, in one embodiment, 103 coating weight of precoated shet is 5~15g/m2, specifically can be 5g/m2、7.5g/m2、
10g/m2、12.5g/m2、15g/m2Deng；The coating weight of chromonic layer 104 is 3~10g/m2, specifically can be 3g/m2、5g/m2、7g/
m2、10g/m2Deng herein similarly, the coating weight of each coating sets itself within the above range according to demand does not do specific limit
It is fixed.
Different heat-sensitive paper coatings is carried out below by concrete technology and formula, and compares moisture-proof frictional property.
It uses as following formula first and technique prepares a kind of heat-sensitive paper:
Comparative example
By 80 mass parts calcined kaolins, 20 parts of hollow plastic pigment, 15 mass parts polyvinyl alcohol, the defoaming of 0.5 mass parts
Agent is mixed into the precoating coating that concentration is 40% solid content under high velocity agitation.
By 36 mass parts bisphenol-As, 4 mass parts polyvinyl alcohol, it is stirred into the mixed liquor that concentration is 40%, is ground in wet type
It is ground to 1.2 μm of partial size in grinding machine, obtains disperse oxidant liquid；By 36 mass parts 1,2- biphenoxyl ethane, 3.5 mass parts are poly-
Vinyl alcohol is stirred into the mixed liquor that concentration is 40%, 1.2 μm is ground in controlling wet-type finishing machine, obtains sensitizer dispersion
Liquid；By 36 mass parts 2- (2-4- dimethylbenzene amido) -3- methyl -6- lignocaine fluorane, 4 mass parts polyvinyl alcohol, stirring is mixed
The mixed liquor that concentration is 45% is synthesized, 1.5 μm are ground in controlling wet-type finishing machine, obtains dye dispersion liquid；Then by 60 mass
Part calcium carbonate, 20 mass parts of oxidant dispersion liquids, 20 mass parts are sensitized agent dispersing liquid, 10 mass parts dye dispersion liquids, 5 mass parts
Zinc stearate, 20 mass parts acrylic resins are mixed into the color development coating that concentration is 30% solid content under high-speed stirred.
The above-mentioned precoating coating prepared and color development coating are successively uniformly coated on body paper and obtain heat-sensitive paper, wherein in advance
The coating weight control of coating is applied in 10g/m2, the coating weight control of color development coating is in 6g/m2, that is, complete the preparation of heat-sensitive paper.
Embodiment 1
By 80 mass parts calcined kaolins, 20 parts of hollow plastic pigment, 15 mass parts polyurethane-acrylic resins, 0.5 matter
Part defoaming agent is measured, is mixed into the precoating coating that concentration is 40% solid content under high velocity agitation.
By 36 mass parts bisphenol-As, 4 mass parts polyvinyl alcohol, it is stirred into the mixed liquor that concentration is 40%, is ground in wet type
It is ground to 1.2 μm of partial size in grinding machine, obtains disperse oxidant liquid；By 36 mass parts 1,2- biphenoxyl ethane, 3.5 mass parts are poly-
Vinyl alcohol is stirred into the mixed liquor that concentration is 40%, 1.2 μm is ground in controlling wet-type finishing machine, obtains sensitizer dispersion
Liquid；By 36 mass parts 2- (2-4- dimethylbenzene amido) -3- methyl -6- lignocaine fluorane, 4 mass parts polyvinyl alcohol, stirring is mixed
The mixed liquor that concentration is 45% is synthesized, 1.5 μm are ground in controlling wet-type finishing machine, obtains dye dispersion liquid；Then by 60 mass
Part calcium carbonate, 20 mass parts of oxidant dispersion liquids, 20 mass parts are sensitized agent dispersing liquid, 10 mass parts dye dispersion liquids, 5 mass parts
Zinc stearate, 20 mass parts acrylic resins are mixed into the color development coating that concentration is 30% solid content under high-speed stirred.
The above-mentioned precoating coating prepared and color development coating are successively uniformly coated on body paper and obtain heat-sensitive paper, wherein in advance
The coating weight control of coating is applied in 10g/m2, the coating weight control of color development coating is in 6g/m2, that is, complete the preparation of heat-sensitive paper.
Embodiment 2
By 80 mass parts calcined kaolins, 20 parts of hollow plastic pigment, 15 mass parts acrylic resins, 0.5 mass parts disappear
Infusion is mixed into the precoating coating that concentration is 40% solid content under high velocity agitation.
By 36 mass parts bisphenol-As, 4 mass parts polyvinyl alcohol, it is stirred into the mixed liquor that concentration is 40%, is ground in wet type
It is ground to 1.2 μm of partial size in grinding machine, obtains disperse oxidant liquid；36 mass parts 1,2- biphenoxyl ethanes, 3.5 mass parts are gathered
Vinyl alcohol is stirred into the mixed liquor that concentration is 40%, 1.2 μm is ground in controlling wet-type finishing machine, obtains sensitizer dispersion
Liquid；By 36 mass parts 2- (2-4- dimethylbenzene amido) -3- methyl -6- lignocaine fluorane, 4 mass parts polyvinyl alcohol, stirring is mixed
The mixed liquor that concentration is 45% is synthesized, 1.5 μm are ground in controlling wet-type finishing machine, obtains dye dispersion liquid；Then by 60 mass
Part calcium carbonate, 20 mass parts of oxidant dispersion liquids, 20 mass parts are sensitized agent dispersing liquid, 10 mass parts dye dispersion liquids, 5 mass parts
Zinc stearate, 20 mass parts acrylic resins are mixed into the color development coating that concentration is 30% solid content under high-speed stirred.
The above-mentioned precoating coating prepared and color development coating are successively uniformly coated on body paper and obtain heat-sensitive paper, wherein in advance
The coating weight control of coating is applied in 10g/m2, the coating weight control of color development coating is in 6g/m2。
Embodiment 3
By 80 mass parts calcined kaolins, 20 parts of hollow plastic pigment, 15 mass parts acrylate/methacrylates
Copolymer, 0.5 mass parts defoaming agent are mixed into the precoating coating that concentration is 40% solid content under high velocity agitation.
By 36 mass parts bisphenol-As, 4 mass parts polyvinyl alcohol, it is stirred into the mixed liquor that concentration is 40%, is ground in wet type
It is ground to 1.2 μm of partial size in grinding machine, obtains disperse oxidant liquid；By 36 parts of quality 1,2- biphenoxyl ethane, 3.5 mass parts are poly-
Vinyl alcohol is stirred into the mixed liquor that concentration is 40%, 1.2 μm is ground in controlling wet-type finishing machine, obtains sensitizer dispersion
Liquid；By 36 mass parts 2- (2-4- dimethylbenzene amido) -3- methyl -6- lignocaine fluorane, 4 mass parts polyvinyl alcohol, stirring is mixed
The mixed liquor that concentration is 45% is synthesized, 1.5 μm are ground in controlling wet-type finishing machine, obtains dye dispersion liquid；Then by 60 mass
Part calcium carbonate, 20 mass parts of oxidant dispersion liquids, 20 mass parts are sensitized agent dispersing liquid, 10 mass parts dye dispersion liquids, 5 mass parts
Zinc stearate, 20 mass parts acrylic resins are mixed into the color development coating that concentration is 30% solid content under high-speed stirred.
The above-mentioned precoating coating prepared and color development coating are successively uniformly coated on body paper and obtain heat-sensitive paper, wherein in advance
The coating weight control of coating is applied in 10g/m2, the coating weight control of color development coating is in 6g/m2。
As shown in table 1, after replacing polyvinyl alcohol adhesive with crylic acid resin latex, prepared heat-sensitive paper is dripping
Coating is without departing from paper after friction, moreover it is possible to keep the information such as bar code or picture and text on paper, therefore use acrylic based emulsion class glue
Stick can be improved the moisture-proof frictional property of heat-sensitive paper.
The water-fast rubs test results of 1 the present embodiment of table 1 heat-sensitive paper and comparative example heat-sensitive paper
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of heat-sensitive paper, which is characterized in that the heat-sensitive paper includes: original paper layer, precoated shet and chromonic layer, the precoated shet and
The chromonic layer is sequentially formed on the original paper layer；
The precoated shet is formed by coating precoating coating, and the precoating coating includes the first filler, the first adhesive and defoaming
Agent；
The chromonic layer by be coated with color development coating formed, the color development coating include disperse oxidant liquid, sensitization agent dispersing liquid,
Dye dispersion liquid, lubricant, the second adhesive and the second filler, wherein second adhesive is acrylic resin, styrene
Acrylic resin modified, polyurethane-acrylic resin, acrylate/methacrylate copolymer in any lotion or
Any mixture.
2. heat-sensitive paper according to claim 1, which is characterized in that
The coating weight of the precoated shet is 5~15g/m2, the coating weight of the chromonic layer is 3~10g/m2。
3. heat-sensitive paper according to claim 2, which is characterized in that
The solid content of the precoated shet is 30~40%；First filler is 100 mass parts, first adhesive be 5~
35 mass parts, the defoaming agent are 0.2~2 mass parts；
Wherein, first filler is precipitated calcium carbonate, silica, calcined kaolin, sheet carclazyte, in hollow plastic pigment
At least one；First adhesive be acrylic resin, styrenated acrylic resin, polyurethane-acrylic resin,
Any lotion or any mixture in the copolymer of acrylate/methacrylate；The defoaming agent is polyether polyol
Class, fatty acid lipid, any one in non-organic silicon class.
4. heat-sensitive paper according to claim 2, which is characterized in that
The disperse oxidant liquid is 10~40 mass parts, the sensitization agent dispersing liquid is 10~40 mass parts, the dyestuff point
Dispersion liquid is 5~10 mass parts, the lubricant is 3~10 mass parts, second adhesive is 4~20 mass parts, described
Two fillers, 10~100 mass parts；
Wherein, the disperse oxidant liquid is 30~45 mass parts of oxidant, 3~4 mass parts of polyvinyl alcohol are hybridly prepared into
The mixed liquor of 30%~50% concentration；The sensitization agent dispersing liquid is 30~45 mass parts of sensitizer, 3~4 mass of polyvinyl alcohol
The mixed liquor for 35%~45% concentration that part is hybridly prepared into；The dye dispersion liquid is 30~45 mass parts of leuco dye, gathers
The mixed liquor for 42%~47% concentration that 3~4 mass parts of vinyl alcohol are hybridly prepared into.
5. heat-sensitive paper according to claim 4, which is characterized in that
The oxidant is bisphenol-A, N- (p-toluenesulfonyl)-N'- (3- tolysulfonyl oxygen phenyl) urea, urea carbamic acid
At least one of ester compounds；
The sensitizer is 1,2- biphenoxyl ethane, in diphenyl sulphone (DPS), stearic amide, 1,2- bis- (3- methylphenoxy) ethane
At least one；
The leuco dye is 2- (2-4- dimethylbenzene amido) -3- methyl -6- lignocaine fluorane, 2- anilino- -3- methyl one
Any one in 6- dibutylamino fluoran, 2- anilino- -3- methyl -6- (N- ethyl-N- propylcarbamic) fluorane；
Second filler is calcium carbonate, silica, calcined kaolin, sheet carclazyte, titanium dioxide, in hollow plastic pigment
At least one；
The lubricant is zinc stearate, calcium stearate, any lotion or any mixture in atoleine.
6. heat-sensitive paper according to claim 4, which is characterized in that
The partial size of the disperse oxidant liquid is 1.0~1.5 μm；
The partial size of the sensitization agent dispersing liquid is 1.0~1.7 μm；
1.2~2.0 μm of the partial size of the dye dispersion liquid.
7. a kind of heat-sensitive paper preparation method, which is characterized in that the described method includes:
Body paper, precoating coating and color development coating are provided respectively；
The precoating coating and the color development coating are successively coated on the body paper surface, is respectively formed and is sequentially coated on body paper
Precoated shet and chromonic layer on layer, obtain the heat-sensitive paper；
Wherein, the precoating coating includes the first filler, the first adhesive and defoaming agent；The color development coating includes oxidant point
Dispersion liquid, sensitization agent dispersing liquid, dyestuff dispersion, lubricant, the second adhesive and the second filler, wherein second adhesive is
The copolymerization of acrylic resin, styrenated acrylic resin, polyurethane-acrylic resin, acrylate/methacrylate
Any lotion or any mixture in object.
8. the method according to the description of claim 7 is characterized in that
The offer precoats coating
By defoaming agent described in the first adhesive described in the first filler, 5~35 mass parts described in 100 mass parts and 0.2~2 mass parts
Mixing forms the precoating coating of 30~40% solid contents；
The offer color development coating includes:
The disperse oxidant liquid, the sensitization agent dispersing liquid and the dye dispersion liquid are prepared respectively；
By sensitization agent dispersing liquid, 5~10 mass parts dye described in disperse oxidant liquid, 10~40 mass parts described in 10~40 mass parts
Expect second described in lubricant described in dispersion, 3~10 mass parts, the second adhesive and 10~100 mass parts described in 4~20 mass parts
Filler is mixed into the color development coating.
9. according to the method described in claim 8, it is characterized in that,
It is described to prepare the disperse oxidant liquid and include:
Oxidant described in 30~45 mass parts, 3~4 mass parts polyvinyl alcohol are ground in controlling wet-type finishing machine, forming partial size is
1.0~1.5 μm, the disperse oxidant liquid that concentration is 30%~50%；
It is described to prepare the sensitization agent dispersing liquid and include:
Sensitizer described in 30~45 mass parts, 3~4 mass parts polyvinyl alcohol are ground in controlling wet-type finishing machine, forming partial size is
1.0~1.7 μm, the sensitization agent dispersing liquid that concentration is 35%~45%；
It is described to prepare the dye dispersion liquid and include:
30~45 mass parts leuco dyes, 3~4 mass parts polyvinyl alcohol are ground in controlling wet-type finishing machine, forming partial size is 1.2
~2.0 μm, the dyestuff that concentration is 42%~47% point.
10. the method according to the description of claim 7 is characterized in that
The precoated shet coating weight is 5~15g/m2, the chromonic layer coating weight is 3~10g/m2。
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114922005A (en) * | 2022-06-17 | 2022-08-19 | 理光感热技术（无锡）有限公司 | Novel thermal sensitive paper and preparation method thereof |
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| CN102616046A (en) * | 2012-04-16 | 2012-08-01 | 金华盛纸业（苏州工业园区）有限公司 | Thermo-sensitive paper and preparing method thereof |
| CN104619510A (en) * | 2012-09-11 | 2015-05-13 | 凸版印刷株式会社 | Thermal transfer recording medium |
| CN106192561A (en) * | 2016-07-08 | 2016-12-07 | 广东松炀再生资源股份有限公司 | A kind of Anti-fake thermosensitive paper and production method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102616046A (en) * | 2012-04-16 | 2012-08-01 | 金华盛纸业（苏州工业园区）有限公司 | Thermo-sensitive paper and preparing method thereof |
| CN104619510A (en) * | 2012-09-11 | 2015-05-13 | 凸版印刷株式会社 | Thermal transfer recording medium |
| CN106192561A (en) * | 2016-07-08 | 2016-12-07 | 广东松炀再生资源股份有限公司 | A kind of Anti-fake thermosensitive paper and production method thereof |
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