CN1015389B - Ink receptibility of paper improved by plasma - Google Patents
Ink receptibility of paper improved by plasmaInfo
- Publication number
- CN1015389B CN1015389B CN 89108404 CN89108404A CN1015389B CN 1015389 B CN1015389 B CN 1015389B CN 89108404 CN89108404 CN 89108404 CN 89108404 A CN89108404 A CN 89108404A CN 1015389 B CN1015389 B CN 1015389B
- Authority
- CN
- China
- Prior art keywords
- paper
- plasma
- roller
- guide roller
- drive roll
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
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- Paper (AREA)
- Printing Methods (AREA)
Abstract
The present invention relates to a method for improving the ink receptibility of paper by using a plasma technique under the state of normal pressure in atmosphere. The ink receptibility of paper is greatly enhanced through treatment, the paper can use small printing pressure to obtain a printing effect that untreated paper uses large printing pressure to obtain. The device of the present invention is provided with a paper roller (1), a conductive body wire (2), a guiding roller (3), a press roller (5), a driving roller (6), a driving belt (7) and a motor (8).
Description
The present invention utilizes the preceding paper of Cement Composite Treated by Plasma printing, improves the ink receptibility of paper, belongs to the plasma application category.
At present, in printing process, because the plain paper surface texture is tight, smoothness is low, makes middle tone and high light two parts level cannot say for sure to demonstrate,prove, thereby have influence on whole printing quality, prior art is mainly concentrated both ways, and the one, improve plate-making quality, for improving middle tone and high light provides necessary condition, but it is bigger to improve the plate-making quality difficulty, and cost is higher.The 2nd, change typography, as: increase squeegee pressure.Can cause paper distortion but increase pressure, influence the order of accuarcy of chromatography, and can reduce the service life of forme.In addition, solve the problems referred to above by the raising original paper quality bigger limitation is also arranged.It at first is the body paper problem.China's Forest Resources is few, and wood pulp paper lacks.By retrieval with the technology of the present invention associated documents JP58-138735 " a kind of surface modification of plastic material ".Provide and utilize the Cement Composite Treated by Plasma frosting under a kind of vacuum state, make the technology of its modification.Different with process object of the present invention, and also be difficult for realizing suitability for industrialized production under the vacuum state.
The object of the present invention is to provide a kind of Cement Composite Treated by Plasma paper of before printing, using, improve the technology of ink receptibility of paper.It can by the corona discharge plasma handling of paper, be further enhanced ink receptibility, thereby improve printing quality on the plate quality certain basis.In addition, through the paper of this processing, just can obtain the printing effect that undressed paper could obtain with bigger pressure printing, the service life of correspondingly having improved forme with less squeegee pressure.Also guaranteed simultaneously the order of accuarcy of chromatography.
The present invention is that using plasma improves ink receptibility of paper, and its special character is to utilize the paper before corona discharge plasma is handled printing under atmospheric normal pressure condition.
Special character of the present invention is that discharge gap voltage is 5～13 kilovolts, and the plasma electrically source frequency is 10～500 KHzs, and the processing time is 0.5～2 second, and paper at the uniform velocity passes through plasma slab.
Special character of the present invention is, adds polar additive in former printing ink, and the paper after Cement Composite Treated by Plasma, ink receptibility are more remarkable.
Be used for equipment of the present invention, has paper bowl (1), several guide rollers (3), pressure roller (5), drive roll (6), driving belt (7), motor (8), motor (8) drives drive roll (6) by driving belt (7) and rotates the frictional force transmission between pressured roller of paper (4) (5) and drive roll (6), its special character is that guide roller (3) is an electric conductor, and relative with each guide roller (3) should have several electric conductor silks (2).
Be used for equipment of the present invention, special character is that the distance between guide roller (3) and the electric conductor silk (2) is adjustable.
Be used for equipment of the present invention, its special character is that the cylindrical of guide roller (3) is surrounded by one deck dielectric (9).
The invention has the advantages that under same forme condition, the paper through corona discharge plasma is handled can improve ink receptibility greatly.In addition, paper treated just can obtain the printing effect that undressed paper could obtain with bigger squeegee pressure with less squeegee pressure, because treated paper can reduce squeegee pressure, has correspondingly improved the service life of forme.Also guaranteed simultaneously the order of accuarcy of chromatography.
Through the corona discharge plasma sheet processed, a large amount of pores and many active groups appear in the surface, thereby make surface polarization energy, and disperse can increase (seeing Table one).The variation of paper surface chemistry and physical arrangement has strengthened the receiving ability (seeing Table two) of printing ink.
Figure one is process chart of the present invention
(1) paper bowl (2) electric conductor silk (3) guide roller (4) paper
(5) pressure roller (6) drive roll (7) driving belt (8) motor
Figure two is the discharge cell cutaway view
(9) dielectric (10) discharging gap
Discharge gap voltage of the present invention is 11～12 kilovolts, and the plasma electrically source frequency is 10～11 KHzs, and the processing time is 0.4～0.5 second.
Device therefor of the present invention has paper bowl (1), guide roller (3), pressure roller (5), drive roll (6), driving belt (7), motor (8).Motor (8) drives drive roll (6) by driving belt (7) and rotates the frictional force transmission between pressured roller of paper (4) (5) and drive roll (6).Guide roller (3) is a metal, and relative with each guide roller (3) should have 5～6 electric conductor silks (2).Distance between guide roller (3) and the electric conductor silk (2) is adjustable.The cylindrical of guide roller (3) is surrounded by one deck dielectric (9).Paper (4) at the uniform velocity passes through plasma slab.
Table one
Paper surface after untreated paper surface is processed improves %
The polarization energy (erg/centimetre) 74.64 93.31 25
The disperse energy (erg/centimetre) 685.9 852.0 24.2
Table two
Printing density increased % after printing density was processed before processing
Middle tone 0.289 0.339 17.3
High light 0.06 0.097 61.6
In former printing ink, add ethyl acetate, process through corona discharge plasma, relatively improve significantly before printing ink ability and the processing. (seeing Table three)
Table three Shandong stamp paper
Printing density is handled the back printing density before handling increases %
Middle tone 0.289 0.358 23.8
High light 0.06 0.102 70
Claims (5)
1, a kind of method with the plasma to improve ink receptibility of paper, it is characterized in that, under atmospheric normal pressure condition, adopt the paper (4) before corona discharge plasma is handled printing, discharge gap voltage is 5～13 kilovolts, the plasma electrically source frequency is 10～500 kilo hertzs, at the uniform velocity by plasma slab, the processing time is 0.5～2 second to paper (4).
2, a kind of equipment that uses the described method of claim 1, has paper bowl (1), several guide rollers (3), pressure roller (5), drive roll (6), driving belt (7), motor (8), motor (8) drives drive roll (6) by driving belt (7) and rotates the frictional force transmission between pressured roller of paper (4) (5) and the drive roll (6), it is characterized in that guide roller (3) is an electric conductor, relative with each guide roller (3) should have several electric conductor silks (2).
3, according to the described method of claim 1, it is characterized in that additive polarity additive ethyl acetate in former printing ink.
According to the described equipment of claim 2, it is characterized in that 4, the distance between guide roller (3) and the electric conductor silk (2) is adjustable.
According to claim 2 or 4 described equipment, it is characterized in that 5, the cylindrical of guide roller (3) is surrounded by one deck dielectric (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89108404 CN1015389B (en) | 1989-11-07 | 1989-11-07 | Ink receptibility of paper improved by plasma |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89108404 CN1015389B (en) | 1989-11-07 | 1989-11-07 | Ink receptibility of paper improved by plasma |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1045730A CN1045730A (en) | 1990-10-03 |
| CN1015389B true CN1015389B (en) | 1992-02-05 |
Family
ID=4857558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89108404 Expired CN1015389B (en) | 1989-11-07 | 1989-11-07 | Ink receptibility of paper improved by plasma |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1015389B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SG11201602772VA (en) * | 2013-10-11 | 2016-05-30 | 3M Innovative Properties Co | Plasma treatment of flexographic printing surface |
| CN107881839A (en) * | 2017-09-29 | 2018-04-06 | 福建希源纸业有限公司 | A kind of preparation method of high whiteness light offset paper |
| CN109468881A (en) * | 2018-11-20 | 2019-03-15 | 合肥绿普包装材料有限公司 | A method of improving stone paper packaging material printing quality |
-
1989
- 1989-11-07 CN CN 89108404 patent/CN1015389B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CN1045730A (en) | 1990-10-03 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |