CN104452458A - Thermosensitive paper - Google Patents
Thermosensitive paper Download PDFInfo
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- CN104452458A CN104452458A CN201410613902.2A CN201410613902A CN104452458A CN 104452458 A CN104452458 A CN 104452458A CN 201410613902 A CN201410613902 A CN 201410613902A CN 104452458 A CN104452458 A CN 104452458A
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Abstract
The invention discloses a piece of thermosensitive paper. The thermosensitive paper comprises a piece of base paper and a color development layer coating one face of the base layer, wherein the color development layer comprises microspheres. Adhesions to a printing head which prints on the thermosensitive paper can be greatly reduced through the manner, so that the adaptability of the thermosensitive paper to the printing head is improved.
Description
Technical field
The present invention relates to pulp technology for making paper, particularly relate to a kind of heat-sensitive paper.
Background technology
Heat-sensitive paper is coated with one deck " thermo colour " and obtains on body paper, and " thermo colour " can react and display pattern when being heated.
When temperature-sensitive paper prints, printhead provides certain energy make thermo-sensitive material melting and react, and these melt substances adhere on printhead except staying upper outside being also easy to of paper, produces printhead adhesion, affects follow-up printing.For solving the problem, be everlasting in prior art and add appropriate stearate series lubricant agent in coating and prevent melt substance from gluing year printhead, but due to the difference of type of printer, still still exist due to the bad Printing Problem brought of Paper Printing head adaptability, bring certain puzzlement to follow-up identification.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of heat-sensitive paper, obviously can reduce printhead when heat-sensitive paper prints and produce adhesion, improve heat-sensitive paper to the conformability of printhead.
For solving the problems of the technologies described above, the present invention adopt a technical scheme be: a kind of heat-sensitive paper is provided, comprise body paper and be coated on described body paper wherein one side on chromonic layer, described chromonic layer comprises microsphere.
Wherein, described microsphere is poly (methyl methacrylate) micro-sphere body.
Wherein, described chromonic layer also comprises leuco dye, oxidant, sensitizer, lubricant, the first adhesive and the first filler.
Wherein, the content of described leuco dye is 5 ~ 10 parts by mass, the content of described oxidant is 10 ~ 40 parts by mass, the content of described sensitizer is 10 ~ 40 parts by mass, the content of described lubricant is 3 ~ 6 parts by mass, the content of described first adhesive is 4 ~ 20 parts by mass, and the content of described first filler is 10 ~ 30 parts by mass, and the content of described microsphere is 0.5 ~ 3 parts by mass.
Wherein, described leuco dye is 2-phenylamino-3-methyl-6-dibutylamino fluorane; Described oxidant is bisphenol-A or 4,4 '-dihydroxydiphenylsulisomer or 3,3 '-diallyl-4,4 '-dihydroxydiphenylsulisomer; Described sensitizer is two (3-methylphenoxy) ethane of beta naphthal benzylic ether or 1,2-; Described lubricant is one or more the mixture in zinc stearate emulsion, calcium stearate emulsion, paraffin wax emulsions; Described first adhesive is one or more the mixture in styrene-butadiene latex emulsion, styrene acrylic resin emulsion, starch emulsion, polyvinyl alcohol emulsions, emulsion acrylic resin; Described first filler is more than one in precipitated calcium carbonate, silica, calcined kaolin, sheet carclazyte, titanium dioxide, hollow plastic pigment.
Wherein, the coating weight of described chromonic layer is 2 ~ 10 grams every square metre.
Wherein, described heat-sensitive paper also comprises the precoated shet coated between described body paper and described chromonic layer, and described precoated shet comprises the second filler and the second adhesive.
Wherein, the content of described second filler is 100 parts by mass, and the content of described second adhesive is 5 ~ 35 parts by mass.
Wherein, described second filler is more than one in precipitated calcium carbonate, silica, calcined kaolin, sheet carclazyte, hollow plastic pigment; Described second adhesive is one or more the mixture in styrene-butadiene latex emulsion, styrene acrylic resin emulsion, starch emulsion, polyvinyl alcohol emulsions, emulsion acrylic resin.
Wherein, the solid content of the coating fluid of described precoated shet is 30% ~ 50%, and coating weight is 5 ~ 15 grams every square metre.
The invention has the beneficial effects as follows: the situation being different from prior art, the present invention adds microsphere in the chromonic layer of heat-sensitive paper, when heat-sensitive paper prints, microsphere can as isolation particulate, certain support is provided between printhead and temperature-sensitive paper, reduce printhead to the adhesion strength of paper, thus reduce printhead generation adhesion when heat-sensitive paper prints, improve heat-sensitive paper to the conformability of printhead.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of heat-sensitive paper one of the present invention embodiment;
Fig. 2 is the structural representation of a kind of another embodiment of heat-sensitive paper of the present invention.
Detailed description of the invention
Consult Fig. 1, embodiment of the present invention provides a kind of heat-sensitive paper, and comprise body paper 3 and be coated on the chromonic layer 1 of body paper 3 wherein in one side, chromonic layer 1 comprises microsphere.
Chromonic layer 1 is formed by the coating even spread comprising thermo-sensitive material, when heat-sensitive paper prints, thermo-sensitive material in chromonic layer 1 is heated and chromogenic reaction display pattern occurs, particularly, , under the energy provided at printhead, oxidation reaction occurs, also microsphere is comprised in the coating of the chromonic layer 1 of embodiment of the present invention, microsphere is that diameter reaches micron-sized round, microsphere is well dispersed in chromonic layer 1 coating, it can adopt the microsphere of the material do not reacted with other composition in coating, in embodiment of the present invention, microsphere also can adopt the microsphere of the material with lubrication.
Be different from prior art, the present invention adds microsphere in the chromonic layer 1 of heat-sensitive paper, when heat-sensitive paper prints, microsphere can as isolation particulate, certain support is provided between printhead and temperature-sensitive paper, reduce printhead to the adhesion strength of paper, thus reduce printhead generation adhesion when heat-sensitive paper prints, improve heat-sensitive paper to the conformability of printhead; The present invention adopts the microsphere with the material of lubrication, can reduce the adhesion of printhead further.
Wherein, microsphere is poly (methyl methacrylate) micro-sphere body, polymethyl methacrylate and lucite, it has high transparent and tough and tensile, matter is hard, rigidity characteris, good heat resistance, embodiment of the present invention adopts poly (methyl methacrylate) micro-sphere physical efficiency to provide enough support strengths, and can not affect the thermo-sensitive material colour developing in coating.
Wherein, chromonic layer 1 also comprises leuco dye, oxidant, sensitizer, lubricant, the first adhesive and the first filler.Can chromogenic reaction be there is at a certain temperature in leuco dye and oxidant and sensitizer, leuco dye becomes chromonic structure, thus Show Color, leuco dye has multiple kind, different colours can be shown accordingly, first filler is that chromonic layer 1 provides support skeleton, often adopts inorganic filler, and the first adhesive is used for each composition in chromonic layer 1 coating mutually bond and adhered to body paper 3.
Wherein, the content of leuco dye is 5 ~ 10 parts by mass, such as 5 parts by mass, 8 parts by mass or 10 parts by mass etc.; The content of oxidant is 10 ~ 40 parts by mass, such as 10 parts by mass, 20 parts by mass or 40 parts by mass etc.; The content of sensitizer is 10 ~ 40 parts by mass, such as 10 parts by mass, 20 parts by mass or 40 parts by mass etc.; The content of lubricant is 3 ~ 6 parts by mass, such as 3 parts by mass, 4 parts by mass or 6 parts by mass etc.; The content of the first adhesive is 4 ~ 20 parts by mass, such as 4 parts by mass, 10 parts by mass or 20 parts by mass etc.; The content of the first filler is 10 ~ 30 parts by mass, 10 parts by mass, 20 parts by mass or 30 parts by mass etc.; The content of microsphere is 0.5 ~ 3 parts by mass, such as 0.5 parts by mass, 2 parts by mass or 3 parts by mass etc.The present invention adopts chromonic layer 1 coating of said ratio, can effectively reduce adhesion on printhead, improves heat-sensitive paper to the conformability of printhead.
Wherein, leuco dye is 2-phenylamino-3-methyl-6-dibutylamino fluorane; Oxidant is bisphenol-A or 4,4 '-dihydroxydiphenylsulisomer or 3,3 '-diallyl-4,4 '-dihydroxydiphenylsulisomer; Sensitizer is two (3-methylphenoxy) ethane of beta naphthal benzylic ether or 1,2-; Lubricant is one or more the mixture in zinc stearate emulsion, calcium stearate emulsion, paraffin wax emulsions; First adhesive is one or more the mixture in styrene-butadiene latex emulsion, styrene acrylic resin emulsion, starch emulsion, polyvinyl alcohol emulsions, emulsion acrylic resin; First filler is more than one in precipitated calcium carbonate, silica, calcined kaolin, sheet carclazyte, titanium dioxide, hollow plastic pigment.
Wherein, the coating weight of chromonic layer 1 is 2 ~ 10 grams every square metre, such as 2 grams every square metre, 6 grams every square metre or 10 grams every square metre etc.; The solid content of chromonic layer 1 coating fluid is 20% ~ 40%, such as 20%, 30% or 40% etc.
Consult Fig. 2, wherein, heat-sensitive paper also comprises the precoated shet 2 coated between body paper 3 and chromonic layer 1, and precoated shet 2 comprises the second filler and the second adhesive.
Between body paper 3 and chromonic layer 1, be coated with one deck precoated shet 2 cover body paper 3, the face sense of paper can be improved, simultaneously for body paper 3 provides certain effect of heat insulation, when printing, the energy that printhead is provided rests on chromonic layer 1 as much as possible, improve the capacity usage ratio that printhead provides, and then promote the hair color effect of chromonic layer 1; In precoated shet 2, the second filler is main component, is generally inorganic filler, and the second adhesive is for bonding the second filler particles and the second filler being adhered to body paper 3 surface.
Wherein, the content of the second filler is 100 parts by mass, and the content of the second adhesive is 5 ~ 35 parts by mass, such as 5 parts by mass, 15 parts by mass or 35 parts by mass etc.
Wherein, the second filler is more than one in precipitated calcium carbonate, silica, calcined kaolin, sheet carclazyte, hollow plastic pigment; Second adhesive is one or more the mixture in styrene-butadiene latex emulsion, styrene acrylic resin emulsion, starch emulsion, polyvinyl alcohol emulsions, emulsion acrylic resin.
Wherein, the solid content of the coating fluid of precoated shet 2 is 30% ~ 50%, such as 30%, 40% or 50% etc.; Coating weight is 5 ~ 15 grams every square metre, such as 5 grams every square metre, 10 grams every square metre or 15 grams every square metre etc.
In embodiment of the present invention, the preparation method of chromonic layer coating comprises the following steps:
S101: oxidant, a certain amount of polyethylene alcohol and water are mixed with certain density first mixed liquor, and the first mixed liquor is ground to the first fineness;
S102: sensitizer, a certain amount of polyethylene alcohol and water are mixed with certain density second mixed liquor, and the second mixed liquor is ground to the second fineness;
S103: leuco dye, a certain amount of polyethylene alcohol and water are mixed with certain density 3rd mixed liquor, and the 3rd mixed liquor is ground to the 3rd fineness;
S104: the first mixed liquor after grinding, the second mixed liquor, the 3rd mixed liquor are mixed with the first filler, lubricant, the first adhesive and microsphere and stir obtain chromonic layer coating fluid.
Oxidant, sensitizer and leuco dye are configured to respectively the first mixed liquor, the second mixed liquor and the 3rd mixed liquor, again the first mixed liquor, the second mixed liquor and the 3rd mixed liquor and the first filler, lubricant and the first adhesive and microsphere are mixed and made into coating fluid, can effectively prevent oxidant, sensitizer and leuco dye from occurring to send out in the process of configuration coating should.
Wherein, in step S101, oxidant is 40 parts by mass, polyvinyl alcohol is 3 to 4 parts by mass, such as 3 parts by mass, 3.5 parts by mass or 4 parts by mass etc., the concentration of the first mixed liquor is 40% ~ 50%, such as 40%, 45% or 50% etc., first fineness is 0.3 ~ 1.5 micron, such as 0.3 micron, 1 micron or 1.5 microns etc.
In step s 102, sensitizer is 40 parts by mass, polyvinyl alcohol is 3 to 4 parts by mass, such as 3 parts by mass, 3.5 parts by mass or 4 parts by mass etc., the concentration of the second mixed liquor is 35% ~ 45%, such as 35%, 40% or 45% etc., the second fineness is 0.2 ~ 1.7 micron, such as 0.2 micron, 1 micron or 1.7 microns etc.
In step s 103, leuco dye is 40 parts by mass, polyvinyl alcohol is 3 to 4 parts by mass, such as 3 parts by mass, 3.5 parts by mass or 4 parts by mass etc., the concentration of the 3rd mixed liquor is 42% ~ 47%, such as 42%, 45% or 47% etc., the 3rd fineness is 0.3 ~ 1.5 micron, such as 0.3 micron, 1 micron or 1.5 microns etc.
In step S104, the absolute dry mass of the first mixed liquor is 10 ~ 40 parts by mass, such as 10 parts by mass, 20 parts by mass or 40 parts by mass etc.; The absolute dry mass of the second mixed liquor is 10 ~ 40 parts by mass, such as 10 parts by mass, 20 parts by mass or 40 parts by mass etc.; The absolute dry mass of the 3rd mixed liquor is 5 ~ 10 parts by mass, such as 5 parts by mass, 8 parts by mass or 10 parts by mass etc.; Lubricant is 3 ~ 6 parts by mass, such as 3 parts by mass, 4 parts by mass or 6 parts by mass etc.; First adhesive is 4 ~ 20 parts by mass, such as 4 parts by mass, 13 parts by mass or 20 parts by mass etc.; First filler is 10 ~ 30 parts by mass, such as 10 parts by mass, 20 parts by mass or 30 parts by mass etc.; Lubrication microsphere is 0.5 ~ 3 parts by mass, such as 0.5 parts by mass, 2 parts by mass or 3 parts by mass etc.
The heat-sensitive paper that the chromonic layer coating solution that table 1 obtains for use said method obtains compares with conventional thermal papers printhead conformability.
Table 1
As can be seen from Table 1, after using the temperature-sensitive paper of coating solution in present embodiment to print 100 bar codes, printhead only has slight adhesion to pile up situation, do not take an evident turn for the better with the temperature-sensitive paper of coating solution in present embodiment, printing after 100 bar codes with trailing length is 2 millimeters, also the half of the temperature-sensitive paper not using coating solution in present embodiment is only had, so the conformability of the heat-sensitive paper of embodiment of the present invention to printhead is significantly improved.
The foregoing is only embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present invention.
Claims (10)
1. a heat-sensitive paper, is characterized in that, comprise body paper and be coated on described body paper wherein one side on chromonic layer, described chromonic layer comprises microsphere.
2. heat-sensitive paper according to claim 1, is characterized in that, described microsphere is poly (methyl methacrylate) micro-sphere body.
3. heat-sensitive paper according to claim 1, is characterized in that, described chromonic layer also comprises leuco dye, oxidant, sensitizer, lubricant, the first adhesive and the first filler.
4. heat-sensitive paper according to claim 3, it is characterized in that, the content of described leuco dye is 5 ~ 10 parts by mass, the content of described oxidant is 10 ~ 40 parts by mass, the content of described sensitizer is 10 ~ 40 parts by mass, and the content of described lubricant is 3 ~ 6 parts by mass, and the content of described first adhesive is 4 ~ 20 parts by mass, the content of described first filler is 10 ~ 30 parts by mass, and the content of described microsphere is 0.5 ~ 3 parts by mass.
5. heat-sensitive paper according to claim 3, is characterized in that, described leuco dye is 2-phenylamino-3-methyl-6-dibutylamino fluorane; Described oxidant is bisphenol-A or 4,4 '-dihydroxydiphenylsulisomer or 3,3 '-diallyl-4,4 '-dihydroxydiphenylsulisomer; Described sensitizer is two (3-methylphenoxy) ethane of beta naphthal benzylic ether or 1,2-; Described lubricant is one or more the mixture in zinc stearate emulsion, calcium stearate emulsion, paraffin wax emulsions; Described first adhesive is one or more the mixture in styrene-butadiene latex emulsion, styrene acrylic resin emulsion, starch emulsion, polyvinyl alcohol emulsions, emulsion acrylic resin; Described first filler is more than one in precipitated calcium carbonate, silica, calcined kaolin, sheet carclazyte, titanium dioxide, hollow plastic pigment.
6. heat-sensitive paper according to claim 1, is characterized in that, the coating weight of described chromonic layer is 2 ~ 10 grams every square metre.
7. the heat-sensitive paper according to any one of claim 1-6, is characterized in that, described heat-sensitive paper also comprises the precoated shet coated between described body paper and described chromonic layer, and described precoated shet comprises the second filler and the second adhesive.
8. heat-sensitive paper according to claim 7, is characterized in that, the content of described second filler is 100 parts by mass, and the content of described second adhesive is 5 ~ 35 parts by mass.
9. heat-sensitive paper according to claim 7, is characterized in that, described second filler is more than one in precipitated calcium carbonate, silica, calcined kaolin, sheet carclazyte, hollow plastic pigment; Described second adhesive is one or more the mixture in styrene-butadiene latex emulsion, styrene acrylic resin emulsion, starch emulsion, polyvinyl alcohol emulsions, emulsion acrylic resin.
10. heat-sensitive paper according to claim 7, is characterized in that, the solid content of the coating fluid of described precoated shet is 30% ~ 50%, and coating weight is 5 ~ 15 grams every square metre.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410613902.2A CN104452458A (en) | 2014-11-04 | 2014-11-04 | Thermosensitive paper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410613902.2A CN104452458A (en) | 2014-11-04 | 2014-11-04 | Thermosensitive paper |
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| CN104452458A true CN104452458A (en) | 2015-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410613902.2A Pending CN104452458A (en) | 2014-11-04 | 2014-11-04 | Thermosensitive paper |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107366184A (en) * | 2017-06-07 | 2017-11-21 | 金华盛纸业（苏州工业园区）有限公司 | A kind of temperature-sensitive paper top coat, temperature-sensitive paper coating and temperature-sensitive paper |
| CN111335075A (en) * | 2018-12-19 | 2020-06-26 | 金华盛纸业（苏州工业园区）有限公司 | Thermal sensitive paper and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101824230A (en) * | 2003-11-19 | 2010-09-08 | 松本油脂制药株式会社 | Thermally expanded microsphere and manufacture method thereof, heat-expandable microsphere body and purposes |
| CN101890847A (en) * | 2009-05-20 | 2010-11-24 | 河南省江河纸业有限责任公司 | High temperature resistant thermosensitive paper |
| 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 |
-
2014
- 2014-11-04 CN CN201410613902.2A patent/CN104452458A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101824230A (en) * | 2003-11-19 | 2010-09-08 | 松本油脂制药株式会社 | Thermally expanded microsphere and manufacture method thereof, heat-expandable microsphere body and purposes |
| CN101890847A (en) * | 2009-05-20 | 2010-11-24 | 河南省江河纸业有限责任公司 | High temperature resistant thermosensitive paper |
| 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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107366184A (en) * | 2017-06-07 | 2017-11-21 | 金华盛纸业（苏州工业园区）有限公司 | A kind of temperature-sensitive paper top coat, temperature-sensitive paper coating and temperature-sensitive paper |
| CN111335075A (en) * | 2018-12-19 | 2020-06-26 | 金华盛纸业（苏州工业园区）有限公司 | Thermal sensitive paper and preparation method thereof |
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