CN105220566A - List in a kind of paper printing is coated with the back of the body and is coated with emulsion and preparation method thereof - Google Patents
List in a kind of paper printing is coated with the back of the body and is coated with emulsion and preparation method thereof Download PDFInfo
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- CN105220566A CN105220566A CN201510634625.8A CN201510634625A CN105220566A CN 105220566 A CN105220566 A CN 105220566A CN 201510634625 A CN201510634625 A CN 201510634625A CN 105220566 A CN105220566 A CN 105220566A
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Abstract
The list that the invention discloses in a kind of paper printing is coated with the back of the body and is coated with emulsion, comprise rubber, mass fraction is 45 ~ 50%, solvent, mass fraction is 30 ~ 35%, cellulose, mass fraction is 6 ~ 10%, ethylenediamine or its metal complex, mass fraction is 5 ~ 8%, deionized water, mass fraction is 3 ~ 5%, surplus is defoamer, and also disclose its preparation method, beneficial effect of the present invention: the list in paper printing provided by the invention is coated with the back of the body and is coated with emulsion and preparation method thereof, by special technique, cellulose is directly added in coating, negative effect can not be produced to the performance of coating simultaneously.As long as client is coated with once in use, the effect being in the past coated with twice just can be reached.Even and quality easily controls, and improves production efficiency, reduces production cost.
Description
Technical field
The invention belongs to paper printing field, the list be specifically related in a kind of paper printing is coated with the back of the body and is coated with emulsion and preparation method thereof.
Background technology
In paper printing industry, when the paper that paper producer provides is transported back to printing factory, because the quality of paper itself is different, and for the ease of long-term storage, can back side of paper be coated with last layer the back of the body be coated with emulsion, prevent paper deposit in process curling gradually, back coating liquid forms rete at paper surface, this reduces the adhesive force of ink and paper in follow-up printing process, and such printing quality is bad, easily comes off.Therefore, in Traditional Printing Industry, be coated with a coating more before printing, be used for strengthening the adhesive force of paper and ink, the whole efficiency of printing like this can decline many.
Summary of the invention
In order to solve the problem, the list that the invention provides in a kind of paper printing is coated with the back of the body and is coated with emulsion and preparation method thereof, and concrete technical scheme is as follows:
List in paper printing is coated with the back of the body and is coated with an emulsion, and comprise rubber, mass fraction is 45 ~ 50%, solvent, mass fraction is 30 ~ 35%, cellulose, and mass fraction is 6 ~ 10%, ethylenediamine or its metal complex, mass fraction is 5 ~ 8%, deionized water, and mass fraction is 3 ~ 5%, and surplus is defoamer.
Further improvement is: described solvent is toluene.
This back of the body is coated with in emulsion containing cellulosic component, when back of the body painting emulsion is coated on paper, a rete is formed after waiting to dry up, because cellulose itself is with the polymer of very polyhydric long-chain ring type structure, hydroxyl containing polarity on its each chain link, increase the polarity of paper surface, main component in ink contains polar molecule, so when printed, ink and paper close to each other time, intermolecular adhesion can be formed each other, and then increase the adhesive force of paper and ink, make ink difficult drop-off.
List in above-mentioned paper printing is coated with the preparation method that the back of the body is coated with emulsion, comprises the following steps:
Steps A: get the solvent of 30 ~ 40%, adds in this solvent by rubber, dissolve, stir;
Step B: add remaining solvent in solution in step, dilution, stirs;
Step C: ethylenediamine or its metal complex are dissolved in deionized water, then slowly adds cellulose while stirring, obtain uniform cellulose solution;
Step D: the cellulose solution obtained by step C slowly joins in the solution of step B gained, while add, limit is stirred, and then adds defoamer, stirs 8 ~ 10 hours, obtain emulsion crude product at 40 ~ 50 DEG C;
Step e: be 7 ~ 12kPa at pressure by the emulsion crude product of step D gained, temperature is that 40 ~ 50 DEG C of backspins steam and are no more than 1.5% to water content, and stop revolving steaming, the list obtained in this paper printing is coated with the back of the body and is coated with emulsion.
Because cellulose is water insoluble, also general organic solvent is insoluble to, therefore, how cellulose being penetrated into that this back of the body is coated with in emulsion is more scabrous problem always in industry, but cellulose can be dissolved in ethylenediamine solution, especially dissolve more obvious in the metal complex of ethylenediamine, then the back of the body by this solution slowly being joined low-grade fever is coated with in the mother liquor of emulsion, stir rapidly, making solution penetrate into the back of the body is coated with in the mother liquor of emulsion, then in stirring, treat abundant dissolving, then under negative pressure, absorb moisture, now, solvent evaporates fewer, until moisture lower than 1.5% time, can stop revolving steaming, obtain the back of the body and be coated with emulsion.
Beneficial effect of the present invention: the list in paper printing provided by the invention is coated with the back of the body and is coated with emulsion and preparation method thereof, by special technique, is directly added in coating by cellulose, can not produce negative effect simultaneously to the performance of coating.As long as client is coated with once in use, the effect being in the past coated with twice just can be reached.Even and quality easily controls, and improves production efficiency, reduces production cost.
Detailed description of the invention
In order to deepen understanding of the present invention, be described in further detail the present invention below in conjunction with embodiment, this embodiment, only for explaining the present invention, not forming protection domain and limiting.
Embodiment one:
List in paper printing is coated with the back of the body and is coated with an emulsion, and comprise butadiene-styrene rubber, mass fraction is 50%, toluene, and mass fraction is 35%, cellulose, and mass fraction is 6%, and mass fraction is 5%, deionized water, and mass fraction is 3%, and surplus is defoamer.
Prepare this list according to said components and be coated with the method that the back of the body is coated with emulsion, comprise the following steps:
Steps A: get the toluene solvant of 40%, adds in this toluene solvant by butadiene-styrene rubber, dissolve, stir.
Step B: add remaining toluene solvant in solution in step, dilution, stirs.
Step C: ethylenediamine is dissolved in deionized water, then slowly adds cellulose while stirring, obtain uniform cellulose solution.
Step D: the cellulose solution obtained by step C slowly joins in the solution of step B gained, while add, limit is stirred, and then adds defoamer, stirs 8 hours, obtain emulsion crude product at 50 DEG C.
Step e: be 7kPa at pressure by the emulsion crude product of step D gained, temperature is that 40 DEG C of backspins steam and are no more than 1.5% to water content, and stop revolving steaming, the list obtained in this paper printing is coated with the back of the body and is coated with emulsion.
By first by cellulose dissolution in a small amount of ethylenediamine solution, then being penetrated into the back of the body is coated with in the mother liquor of emulsion, dilution, for preventing, during high temperature evaporation moisture, side reaction occurs, low-pressure low-temperature transpiring moisture, until water content lower than 1.5% time can complete, now, cellulose is being carried on the back in the mother liquor being coated with emulsion by oozing with the intermolecular force of ethylenediamine, then in use, be coated in paper surface, after waiting to dry up, paper surface forms rete, film surface has the cellulose of homogeneous lay, not only can preserve unlikely paper for a long time curling, and cellulose can produce intermolecular force with the polar molecule in ink, increase the adhesive force of paper and ink, make ink difficult drop-off.
Embodiment two:
List in paper printing is coated with the back of the body and is coated with an emulsion, and comprise natural rubber, mass fraction is 45%, toluene, and mass fraction is 30%, cellulose, and mass fraction is 10%, cupri ethylene diamine, and mass fraction is 8%, deionized water, and mass fraction is 5%, and surplus is defoamer.
Because the viscosity of natural emulsion is very good than butadiene-styrene rubber, therefore can suitably reduce its content.
Prepare this list according to said components and be coated with the method that the back of the body is coated with emulsion, comprise the following steps:
Steps A: get the toluene solvant of 30%, adds in this toluene solvant by natural rubber, dissolve, stir.
Step B: add remaining toluene solvant in solution in step, dilution, stirs.
Step C: cupri ethylene diamine is dissolved in deionized water, then slowly adds cellulose while stirring, obtain uniform cellulose-cupri-ethylene diamine solution.Cupri ethylene diamine is better to dissolving cellulos effect.
Step D: the cellulose-cupri-ethylene diamine solution obtained by step C slowly joins in the solution of step B gained, while add, limit is stirred, and then adds defoamer, stirs 10 hours, obtain emulsion crude product at 40 DEG C.
Step e: be 12kPa at pressure by the emulsion crude product of step D gained, temperature is that 50 DEG C of backspins steam and are no more than 1.5% to water content, and stop revolving steaming, the list obtained in this paper printing is coated with the back of the body and is coated with emulsion.
Embodiment two is only with the maximum difference of embodiment one: what have viscous effect in embodiment one is butadiene-styrene rubber, natural emulsion in embodiment two, although butadiene-styrene rubber is as artificial industrial chemicals, have very close to the viscosity in natural emulsion, and there is higher durability, therefore, the list painting back of the body painting emulsion of embodiment one has long shelf life.
Claims (3)
1. the list in paper printing is coated with the back of the body and is coated with an emulsion, and comprise rubber, mass fraction is 45 ~ 50%, solvent, mass fraction is 30 ~ 35%, cellulose, and mass fraction is 6 ~ 10%, ethylenediamine or its metal complex, mass fraction is 5 ~ 8%, deionized water, and mass fraction is 3 ~ 5%, and surplus is defoamer.
2. the list in a kind of paper printing according to claim 1 is coated with the back of the body and is coated with emulsion, it is characterized in that: described solvent is toluene.
3. the list in above-mentioned paper printing is coated with the preparation method that the back of the body is coated with emulsion, it is characterized in that: comprise the following steps:
Steps A: get the solvent of 30 ~ 40%, adds in this solvent by rubber, dissolve, stir;
Step B: add remaining solvent in solution in step, dilution, stirs;
Step C: ethylenediamine is dissolved in deionized water, then slowly adds cellulose while stirring, obtain uniform cellulose solution;
Step D: the cellulose solution obtained by step C slowly joins in the solution of step B gained, while add, limit is stirred, and then adds defoamer, stirs 8 ~ 10 hours, obtain emulsion crude product at 40 ~ 50 DEG C;
Step e: be 7 ~ 12kPa at pressure by the emulsion crude product of step D gained, temperature is that 40 ~ 50 DEG C of backspins steam and are no more than 1.5% to water content, and stop revolving steaming, the list obtained in this paper printing is coated with the back of the body and is coated with emulsion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510634625.8A CN105220566A (en) | 2015-09-30 | 2015-09-30 | List in a kind of paper printing is coated with the back of the body and is coated with emulsion and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510634625.8A CN105220566A (en) | 2015-09-30 | 2015-09-30 | List in a kind of paper printing is coated with the back of the body and is coated with emulsion and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105220566A true CN105220566A (en) | 2016-01-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510634625.8A Pending CN105220566A (en) | 2015-09-30 | 2015-09-30 | List in a kind of paper printing is coated with the back of the body and is coated with emulsion and preparation method thereof |
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| CN (1) | CN105220566A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107326731A (en) * | 2017-08-03 | 2017-11-07 | 湖北绿新环保包装科技有限公司 | A kind of back of the body for preventing paper NMF closure plate applies emulsion |
| CN108149514A (en) * | 2017-12-20 | 2018-06-12 | 常德金德新材料科技股份有限公司 | Transfer paper and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1030109A (en) * | 1987-05-04 | 1989-01-04 | 韦尔豪泽公司 | The bacterial cellulose surface treatment of fiber mesh material |
| EP1270662A2 (en) * | 2001-06-20 | 2003-01-02 | Wolff Walsrode AG | Hydrocolloid compositions and their use for the manufacture of redispersable coatings, films, sheets and papers |
| CN101495699A (en) * | 2006-07-12 | 2009-07-29 | 卡姆-特内罗造纸厂股份公司 | Coated backing paper |
| CN102378839A (en) * | 2009-03-30 | 2012-03-14 | Omya发展股份公司 | Process for the production of nano-fibrillar cellulose suspensions |
| CN104594124A (en) * | 2014-12-30 | 2015-05-06 | 江苏琛亚印材科技有限公司 | Application of waterborne back-coating emulsion (humectant) in packaging industry |
-
2015
- 2015-09-30 CN CN201510634625.8A patent/CN105220566A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1030109A (en) * | 1987-05-04 | 1989-01-04 | 韦尔豪泽公司 | The bacterial cellulose surface treatment of fiber mesh material |
| EP1270662A2 (en) * | 2001-06-20 | 2003-01-02 | Wolff Walsrode AG | Hydrocolloid compositions and their use for the manufacture of redispersable coatings, films, sheets and papers |
| CN101495699A (en) * | 2006-07-12 | 2009-07-29 | 卡姆-特内罗造纸厂股份公司 | Coated backing paper |
| CN102378839A (en) * | 2009-03-30 | 2012-03-14 | Omya发展股份公司 | Process for the production of nano-fibrillar cellulose suspensions |
| CN104594124A (en) * | 2014-12-30 | 2015-05-06 | 江苏琛亚印材科技有限公司 | Application of waterborne back-coating emulsion (humectant) in packaging industry |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107326731A (en) * | 2017-08-03 | 2017-11-07 | 湖北绿新环保包装科技有限公司 | A kind of back of the body for preventing paper NMF closure plate applies emulsion |
| CN108149514A (en) * | 2017-12-20 | 2018-06-12 | 常德金德新材料科技股份有限公司 | Transfer paper and preparation method thereof |
| CN108149514B (en) * | 2017-12-20 | 2020-12-22 | 常德金德新材料科技股份有限公司 | Transfer paper and preparation method thereof |
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Application publication date: 20160106 |