CN101085885A - Oil-water balancing agent for hectograph and application thereof - Google Patents
Oil-water balancing agent for hectograph and application thereof Download PDFInfo
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- CN101085885A CN101085885A CN 200710041595 CN200710041595A CN101085885A CN 101085885 A CN101085885 A CN 101085885A CN 200710041595 CN200710041595 CN 200710041595 CN 200710041595 A CN200710041595 A CN 200710041595A CN 101085885 A CN101085885 A CN 101085885A
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- oil
- agent
- water
- pigment
- hectograph
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Abstract
The invention relates to an oil- water balancing agent for offset printing. It is characterized in that the oil- water balancing agent is as follows: R1 is hydroxyl group, monomer or poly organic amine, or organic alcohol ot organic silicon polyoxyethylene or residue of polypropylene oxide removed one or a plurality of active hydrogen; R2 and R3 are H or CH3; m, n is positive integer smaller than 100; P is positive integer smaller than 2000; k is natural number from 1 to 4. The invention reduces the emulsion value of oil ink to less than 40, and reduces side effect of adjuvant by decreasing the adjuvant consumption.
Description
Technical field
The present invention relates to a kind of oil-water balance agent, relate in particular to a kind of oil-water balancing agent for hectograph and application thereof.
Background technology
Offset printing is one of main mode of printing.Because printing ink directly contacts with printing liquid medicine in the printing process, so the oil-water balance of flexographic ink (being commonly called as resistance to emulsion, water resisting property) can influence printing quality to a great extent.The excessive emulsification meeting of flexographic ink brings field density reduction, dot gain, ink flow variation, transitivity variation, heap version, floats defect such as dirty to printing.How to control water-pickup of ink, be the problem that the offset printing industry generally is concerned about always.
The main component of flexographic ink is Dormant oils, oil-soluble resin and pigment.Most of pigment are water synthetic, because this body structure of pigment or outer adding assistant often contain polar substance in the pigment component, it is generally acknowledged that these polar materials are the major causes that cause ink emulsification.
The common method that solves ink emulsification problem in the offset printing at present is to add non-emulsifying agent (US4589920) in the printing ink preparation process.The non-emulsifying agent of Tian Jiaing has only small part to be adsorbed in surface of pigments like this, most of auxiliary agent is in unbound state in printing ink, not only cause the increase of non-emulsifying agent consumption, and free non-emulsifying agent also can have side effects (surface tension and the printability that for example influence printing ink).In addition, this method generally can only drop to the emulsification value of printing ink below 60, but for high speed printing, and the emulsification value of printing ink often needs to be controlled at below 40 even be lower.
Summary of the invention
Purpose of the present invention is exactly to provide a kind of oil-water balancing agent for hectograph and application thereof that is applicable to offset printing industry, few side effects for the defective that overcomes above-mentioned prior art existence.
Purpose of the present invention can be achieved through the following technical solutions:
A kind of oil-water balancing agent for hectograph is characterized in that, the molecular structure of this oil-water balance agent is:
R
1For hydroxyl, unit or polynary organic amine or organic alcohol or organosilicon polyoxyethylene or polyoxypropylene remove residue behind one or more reactive hydrogens; R
2, R
3Be H or CH
3M, n are the positive integer less than 100; P is the positive integer less than 2000; K is 1～4 natural number.
Described oil-water balance agent is used in the pigment prepared process at offset printing ink, before pigment filtering the oil-water balance agent is added, and addition is 0.5～3.0% of a pigment dry weight.
The mode that described water oil poiser adds comprises direct adding, or adds with the form of solution or emulsion.
Described oil-water balance agent dissolves in the rosined soap and rosin carries out surface treatment to pigment together.
Compared with prior art, the present invention is that the oil-water balance agent of adding a kind of energy adsorbed close surface of pigments in the pigment prepared process is carried out surface treatment to pigment, improve the water resisting property of flexographic ink by the demulsification performance that improves pigment, this oil-water balance agent is applicable to the offset printing industry, the emulsification value of printing ink can be dropped to below 40, and by reducing the side effect that auxiliary dosage reduces auxiliary agent.
Embodiment
Below in conjunction with specific embodiment oil-water balance agent and application method thereof involved in the present invention are described.
Embodiment 1
A kind of oil-water balancing agent for hectograph is characterized in that, the molecular structure of this oil-water balance agent is:
R1 is polymine (molecular weight 50000) residue: m=80, n=30, k=1, p=1163 (theoretical value), R
2Be H, R
3Be CH
3
The oil-water balance agent of said structure is with polymine (molecular weight 50000) initiator, and the ring-opening reaction by oxyethane and propylene oxide makes.
This auxiliary agent adds in benzidine yellow pigment (Pigment Yellow 73 P.Y.12) preparation process, and adding is before coupling finishes back, pigment filtering opportunity.Gained pigment prepares offset printing ink (pigment content is 20%, commercial sylvic oil 80%) according to a conventional method, and its emulsification value is by degree gram (DUKE) method test (ASTMD4942) commonly used in the industry.The emulsification value that changes auxiliary dosage printing ink changes thereupon, and concrete data see the following form.If do not use the oil-water balance agent in the pigment prepared process, and use the non-emulsifying agent shown in the example 1 among the US4589920 according to a conventional method in the printing ink preparation process, gained offset printing ink emulsification value is listed following table (comparison example I) equally in.
By data in the table as seen, the present invention has remarkable advantages.
The oil-water balance agent is to the influence of flexographic ink emulsification value
Embodiment 2
Example 2 employed oil-water balance agent, its molecular structure such as general formula:
Wherein: R1 is that tetramethylolmethane removes four residues that reactive hydrogen is later, m=50, n=50, k=3, p=4
R
2Be H, R
3Be CH
3
Pigment changes phthalocyanine blue into, does same simultaneous test, and gained is the result also list in the table.Example 2 proves that once more use oil-water balance agent of the present invention is not only easy to use in the preparation process of pigment, and can be issued to better effect in the situation of low consumption.
Embodiment 3
In four coloring agent printing inks, the easiest emulsive that causes is a red ink.Red pigment commonly used comprises Pigment red 57:1,53:1,49:1 etc.These pigment all are organometallic compound from molecular structure, itself have stronger polarity, also can add rosined soap in addition in the pigment prepared process, and by the precipitation of abietate (calcium salt, barium salt etc.) pigment are carried out surface treatment.The polarity of pigment itself and the polarity of abietate all are the major reasons that causes ink emulsification.The emulsion resistance problem of red ink is more headachy problem in the offset printing industry always.This test is an experimental subjects with Pigment red 57:1, and R1 is that Viscotrol C removes 3 residues that reactive hydrogen is later, m=70, n=20, k=4, p=3, R2=H, R3=CH3 in its molecular structure of oil-water balance agent of employing
This auxiliary agent divides following two kinds of adding modes, first kind of mode is that it is dissolved in the rosined soap, with rosin pigment is carried out surface treatment (coat by the replacement(metathesis)reaction generation rosin calcium of rosined soap and calcium chloride and in surface of pigments, surface of pigments is separated out and is coated in the oil-water balance agent simultaneously).Second method is that the oil-water balance agent directly is added in the middle of the printing ink of same prescription.The correlation data of ink emulsification value shows: use oil-water balance agent better effects if by the inventive method in the preparation process of pigment.
Claims (4)
1. an oil-water balancing agent for hectograph is characterized in that, the molecular structure of this oil-water balance agent is:
R
1For hydroxyl, unit or polynary organic amine or organic alcohol or organosilicon polyoxyethylene or polyoxypropylene remove residue behind one or more reactive hydrogens; R
2, R
3Be H or CH
3M, n are the positive integer less than 100; P is the positive integer less than 2000; K is 1～4 natural number.
2. the application of the described oil-water balancing agent for hectograph of claim 1, it is characterized in that, described oil-water balance agent is used in the pigment prepared process at offset printing ink, before pigment filtering the oil-water balance agent is added, and addition is 0.5～3.0% of a pigment dry weight.
3. the application of a kind of oil-water balancing agent for hectograph according to claim 2 is characterized in that, the mode that described water oil poiser adds comprises direct adding, or adds with the form of solution or emulsion.
4. the application of a kind of oil-water balancing agent for hectograph according to claim 2 is characterized in that, described oil-water balance agent dissolves in the rosined soap and rosin carries out surface treatment to pigment together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710041595 CN101085885A (en) | 2007-06-01 | 2007-06-01 | Oil-water balancing agent for hectograph and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710041595 CN101085885A (en) | 2007-06-01 | 2007-06-01 | Oil-water balancing agent for hectograph and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101085885A true CN101085885A (en) | 2007-12-12 |
Family
ID=38937054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710041595 Pending CN101085885A (en) | 2007-06-01 | 2007-06-01 | Oil-water balancing agent for hectograph and application thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN101085885A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104292978A (en) * | 2014-10-30 | 2015-01-21 | 佛山市儒林化工有限公司 | Special thermosetting flat plate offset printing ink for membrane-covered iron and preparation method thereof |
| CN108944112A (en) * | 2018-07-28 | 2018-12-07 | 黄智慧 | A kind of preparation method for exempting from alcohol fountain solution |
-
2007
- 2007-06-01 CN CN 200710041595 patent/CN101085885A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104292978A (en) * | 2014-10-30 | 2015-01-21 | 佛山市儒林化工有限公司 | Special thermosetting flat plate offset printing ink for membrane-covered iron and preparation method thereof |
| CN108944112A (en) * | 2018-07-28 | 2018-12-07 | 黄智慧 | A kind of preparation method for exempting from alcohol fountain solution |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI SANZHENG POLYMER MATERIALS CO., LTD. Free format text: FORMER OWNER: SHANGHAI DIANZHEN MATERIALS SCIENCE CO., LTD. Effective date: 20080425 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20080425 Address after: Shanghai City, Minhang District Yindu Road, Lane 1669 No. 93 post encoding: 201108 Applicant after: Shanghai tri polymer material Co Ltd Address before: Room 607, Shanghai science and technology innovation center, 100 Qinzhou Road, Shanghai, China: 200235 Applicant before: Shanghai dianzhen Material Technology Co., Ltd. |
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20071212 |