CN101438212A - Paper for electronic photo - Google Patents
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- CN101438212A CN101438212A CNA2006800545045A CN200680054504A CN101438212A CN 101438212 A CN101438212 A CN 101438212A CN A2006800545045 A CNA2006800545045 A CN A2006800545045A CN 200680054504 A CN200680054504 A CN 200680054504A CN 101438212 A CN101438212 A CN 101438212A
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- Prior art keywords
- acrylic
- paper
- electronic photo
- acid
- ethyl acrylate
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G7/00—Selection of materials for use in image-receiving members, i.e. for reversal by physical contact; Manufacture thereof
- G03G7/0006—Cover layers for image-receiving members; Strippable coversheets
- G03G7/002—Organic components thereof
- G03G7/0026—Organic components thereof being macromolecular
- G03G7/004—Organic components thereof being macromolecular obtained by reactions only involving carbon-to-carbon unsaturated bonds
Abstract
An electrophotographic paper of the invention is formed with a fiber coated with an acrylic polymer in which the molar ratio of the total acrylic groups in the acrylic polymer to the acrylic groups neutralized with sodium hydroxide ranges from 3:1 to 5:1, and is characterized in that the content ratio of the acrylic polymer to dry pulp ranges from 0.025 to 0.125% by mass in terms of the acrylic group. According to the invention, an electrophotographic paper excellent in color printing properties with a Bekk smoothness of 50 seconds or more, a Stockigt sizing degree of 20 or more and a formation index of 80 or more while maintaining properties such as slack can be obtained.
Description
Technical field
The present invention relates to a kind of smoothness height that is applicable to, have excellent more ink powder printing ink manifolding property, the electrophotography paper of the color electric photo that quality and degree of sizing improve, color laser printing.
Background technology
In recent years, along with the development of ink powder printing ink manifolding technology, color electric photo and color laser printing are required to improve constantly.Owing to this paper for electronic photo smoothness height, have good ink powder printing ink manifolding property, so used in a large number.Requisite item as paper for electronic photo has 2 points, and the one, possess higher smoothness, the 2nd, do not influence the fold that property is made carbon copies in toning.
In order to obtain the high paper of smoothness, generally taked the method for the press polish processing of high nip pressure in the past.When but the press polish of carrying out high nip pressure is handled, cause paper density to become big, paper meeting attenuation, thus be easy to generate fold.The paper that has fold can not be used among xerography and the laser printing method.
A kind of method that improves the paper smoothness by coating pigment on body paper and resin is disclosed in the patent documentation 1 to 3 as follows.Wherein, a kind of method that quantitatively is coated with collophony glue in the one side at least of body paper is disclosed in following patent documentation 1.Disclose in following patent documentation 2 that the ratio of a kind of swell increment of the stock with paper and the density of coated paper is fixing to carry out the method that supercalendering is handled within limits.In following patent documentation 3, disclosing a kind of will be on the two sides of the coating layer of the major component stock that is arranged at paper with certain heating-up temperature with pigment and cementing agent.More than disclosed method all be by with pigment or resin-coated one side at least in body paper improving the paper surface smoothness, and coating behaviour industry is finished by the outer coating of machine or by the coating behaviour industry of Cypres.
Following patent documentation 4 discloses the method for another raising paper smoothness, and promptly the metallic roll with heating contacts the paper surface that is coated with through water, pressurizes with other thermometal roller or resilient roller then.Patent documentation 5 also discloses a kind of with the method for hot-rolling with body paper and plastic sheeting bonding in addition.But all must transform when being to use these job operation operations existing paper machine.Disclose a kind of paper with smooth surface in addition in the patent documentation 6, this paper has used 30%-70% part mercerization paper pulp.
Patent documentation 1: Japanese patent laid-open 9-21092 (claim)
Patent documentation 2: Japanese patent laid-open 11-174713 (paragraph [0014]～[0016])
Patent documentation 3: the Jap.P. spy opens 2000-66437 (paragraph [0013]～[0019])
Patent documentation 4: Japanese patent laid-open 6-257093 (claim)
Patent documentation 5: Japanese patent laid-open 11-2914 (claim)
Patent documentation 6: Japanese patent laid-open 7-189168 (claim)
Summary of the invention
The technical task that invention is solved
As mentioned above, at present general using is body paper surface coating pigment or resin, or the method by hot-rolling of making it is to make the smoothness height, all to spend good paper.If but exceed quantitatively at the pigment of the surface coated of paper for electronic photo or resin then can cause bonding, the paper of ink powder to curl and trouble such as repeat to pass on, make efficient and increase cost thereby reduce.Therefore, generally only use fiber to make paper layer.Consequently, use said method can't make paper for electronic photo with higher smoothness and Gao Jundu.
Inventor of the present invention is at the deficiencies in the prior art, for the smoothness of improving paper for electronic photo, all degree and degree of sizing (stockigt sizing degree) have carried out many-sided exploration.The present invention finds that finally when the acrylic polymers of using part to neutralize replaced being used as the sodium polyacrylate of Cypres usually, smoothness, evenness coefficient and degree of sizing all improved, and can obtain to be applicable to the paper of using of printing color electronic photo.
The object of the present invention is to provide a kind of smoothness height, have excellent ink powder printing ink manifolding property and the good quality and the paper for electronic photo of degree of sizing.
The method of technical solution problem
The objective of the invention is to realize by following technical scheme: a kind of paper for electronic photo is characterised in that, on fiber, coat acrylic polymers and electron gain photo paper, the acrylic polymers that adopts be total acrylic with the mol ratio of the acrylic that neutralizes with NaOH at the acrylic polymers between the 3:1 to 5:1, the containing ratio of aforesaid propylene acids polymkeric substance is that the acrylic quality number percent that converts with respect to dry pulp is among 0.025～0.125% scope.
Paper for electronic photo of the present invention obtains at the acrylic polymers between the 3:1 to 5:1 by the mol ratio that coats total acrylic and the acrylic that neutralizes with NaOH in the acrylic polymers on paper pulp.Acrylic conversion method of the present invention is defined as follows.That is, owing to the molecular weight of acrylic polymers along with the degree of neutralization of NaOH or the molecular weight of multipolymer change, cause the activity degree of the addition of acrylic polymers and acrylic disproportionate.For example, when acrylic polymers is under the polyacrylic situation, its neutralized by NaOH or part in and the time, in having the polyacrylic acid of chemical constitution as follows, (the C of the basic comprising unit of acrylic
2H
3COO-) quantity is constant.When acrylic polymers was acrylate copolymer, situation also was identical.
Chemical formula 1:
" the acrylic scaled value " of Shi Yonging is in the present invention, with respect to the fundamental structural unit (C of contained acrylic in the acrylic polymers
2H
3COO-) convert the back resulting value.This moment is owing to the fundamental structural unit (C of contained acrylic in the acrylic acid based polymer
2H
3COO-) quantity and carboxyl are proportional, can obtain with alkali titration or acidimetry at an easy rate.
In addition, as acrylic polymers, employed in can the service test example mainly based on acrylic acid/methacrylic acid/ethyl acrylate copolymer, can also select the polymkeric substance of acrylic acid/methacrylic acid copolymer, acrylic acid/ethyl acrylate copolymer, acrylic acid/methylmethacrylate copolymer etc. and polyacrylic acid etc., in addition can also these polymkeric substance and multipolymer mix the back and use.
Polyacrylic acid of the present invention or acrylic copolymer by with NaOH generation part neutralization reaction after the part neutralized reaction product that generates work.That is, the use amount of NaOH is not the chemical equivalent with respect to polyacrylic acid or acrylic copolymer, but does not reach neutralization fully, and the use amount of NaOH is lower than the quantity of its equivalents.
Promptly, in the reaction of polyacrylic acid or acrylic copolymer and NaOH, the hydrogen in polyacrylic acid or the acrylic copolymer on the carboxyl can be replaced by sodium fully, but among the present invention, neutralization reaction is not that all hydrogen is replaced into sodium fully, but wherein the hydrogen of a part is replaced into sodium.For example the hydrogen of 1/3 to 1/5 on the carboxyl of chain in polyacrylic acid or the acrylic copolymer is replaced with sodium.
In the present invention, must carry out the part neutralization reaction between the 3:1 to 5:1 according to the total acrylic in the described acrylic polymers and the mol ratio of the acrylic that neutralizes through NaOH.When mol ratio was in this scope, degree of neutralization was roughly between 20% to 33%.When mol ratio was lower than 3:1, promptly sodium hydroxide concentration was of value to the compound covered fiber surface of generation more for a long time, thereby make fiber be easy on the line of paper machine, move, thereby make fiber dispersion even, therefore can obtain the paper that evenness is good, smoothness is high, but its degree of sizing reduces; Otherwise, when mol ratio is higher than 5:1, promptly sodium hydroxide concentration relatively more after a little while, the compound of generation is less in the ratio that fiber surface coats, thereby causes that evenness reduces, smoothness reduces, but degree of sizing increases.
In addition, in the present invention, polyacrylic acid or acrylic copolymer and NaOH part neutralization reaction can be carried out with mixing simultaneously of fiber according to above-mentioned these materials being blended into as carrying out in the fiber of pulpwood.Therefore by this mixed process, the product of polyacrylic acid or acrylic copolymer and NaOH generation part neutralization reaction just is coated on the fiber.The customary operation of carrying out paper technology after this operation gets final product.
As mentioned above, paper for electronic photo of the present invention is coated on by the compound that polyacrylic acid or acrylic copolymer and NaOH generation part neutralization reaction are generated fiber is evenly disperseed.Therefore in papermaking operation thereafter, fiber can move on the line of paper machine at an easy rate, thereby improves the dispersiveness of fiber.And because fiber evenly distributes, improved evenness, made paper smooth.Improve evenness by above-mentioned fiber dispersion preferably, press down the light time by the compound of fiber surface at common nip pressure and also can improve smoothness.
In addition, in paper for electronic photo of the present invention, aforementioned polyacrylic acid or acrylic copolymer through NaOH partly neutralize the compound that generates must satisfy following scope for the relative content of oven dry stock.With respect to the fiber of oven dry stock, the mass percent of polyacrylic neutralization reaction product should be between 0.025 and 0.125%.In paper-making process,, therefore be necessary the addition of medicine is limited because adding amount of medicines influences degree of sizing (stockigtsizing degree).Along with adding amount of medicines increases, evenness and smoothness increase, but degree of sizing reduces.In paper for electronic photo of the present invention, with respect to dry pulp, the content that converses by acrylic is higher than at 0.025% o'clock, the BEKK smoothness surpasses 50 seconds, and is respond well, but with respect to dry pulp, by acrylic converse content be higher than at 0.125% o'clock, degree of sizing reduces.
In addition, paper for electronic photo of the present invention is characterised in that its BEKK formula smoothness was greater than 50 seconds.
In addition, paper for electronic photo of the present invention is characterised in that its degree of sizing is greater than 20.
The invention effect
Describe in detail in paper for electronic photo of the present invention such as following examples and the comparative example, have higher smoothness, its evenness and degree of sizing all improve, and are applicable to the printing of color electric photo.
Description of drawings
Fig. 1 represents the figure of the test result of each embodiment and comparative example.
The test result of Figure 1A BEKK smoothness.
The test result of Figure 1B evenness coefficient.
The test result of Fig. 1 C degree of sizing.
Embodiment
With comparative example the present invention is elaborated by the following examples, but the present invention is not limited to following examples.In not exceeding claims of the present invention institute restricted portion, the present invention can carry out numerous variations.
At first degree of sizing, evenness coefficient and the BEKK smoothness to embodiment and comparative example describes.
" degree of sizing "
Carry out feathering test UM429 number according to U.S.'s paper and the standard Tappi of pulp industry technological associations.Be 70g/m for the level ground amount
2Paper for electronic photo, be good when degree of sizing surpasses 30, permissible range is between 20 to 30, it is bad being lower than 20.
" evenness coefficient "
The formation of sheet instrument that evenness coefficients by using kayany company produces is measured.Be 70g/m for the level ground amount
2Paper for electronic photo, the evenness coefficient is higher than 90 for good, permissible range is lower than 80 for bad between 80 to 90.
" BEKK smoothness "
The BEKK smoothness is measured according to U.S.'s paper and the standard Tappi T 479cm-99 of pulp industry technological associations.When the BEKK smoothness was higher than 80 seconds, the resolution of laser color printing was the highest, and the resolution of laser color printing is in permissible range in the time of between 50 to 80 seconds, and the resolution of laser color printing is lower when being lower than 50 seconds.
Use two kinds of color laser printing machines of " Xerox Docu color 2060 " and " Xerox Docu color 6060 " to try printing on the paper of made.Use three kinds of symbols respectively its result to be carried out evaluation of classification, wherein, zero=good, △=general, *=poor.
Among the embodiment 1, use commercially available acrylic acid/methacrylic acid/ethyl acrylate copolymer as acrylic polymers.The proportioning of paper pulp is: LBKP (BRATSK) 90%, NBKP (bleached sulphate softwood pulp) 10%.(with the oven dry stock quality is that benchmark converts to add mass percent in paper stock.Below identical) be 0.025% acrylic acid/methacrylic acid/ethyl acrylate copolymer and 0.035% NaOH.Total acrylic in acrylic acid/methacrylic acid/ethyl acrylate copolymer is 4:1 with the mol ratio of the acrylic that neutralizes with NaOH at this moment.Disperse making beating until beating degree be CSF400 (Canadian Standard Freeness Canadian Standard Freeness) till paper stock thereafter.The lime carbonate that adds mass percent and be 15% (anhydrous benchmark calculates down) is as filler.Add mass percent in addition respectively and be 0.9% cationic starch, Cypres 0.3 quality %, alkyl ketene dimer AKD1.3 quality % and as the polyacrylamide 300ppm% of cationic retention aid filtration aid.Resulting mixed material is coated with after the roller drier drying on the line of normally used fourdrinier machine.At last it is produced paper for electronic photo with containing the farinose sizing agent of 8% enzyme modification after by sizing applicator extrusion cloth.The performance index of the paper for electronic photo that is obtained are: level ground amount 70g/m
2, BEKK smoothness 52 seconds, evenness coefficient 85, degree of sizing 25.Its excellent performance has all obtained checking through printing test and combination property experiment.
In embodiment 2, the mass percent of adding acrylic acid/methacrylic acid/ethyl acrylate copolymer and NaOH in pulp material is respectively 0.05% and 0.070%, and all the other conditions are made the level ground amount and are 70g/m similarly to Example 1
2Paper for electronic photo.Total acrylic in acrylic acid/methacrylic acid/ethyl acrylate copolymer is 4:1 with the mol ratio of the acrylic that neutralizes with NaOH at this moment.The performance index of the paper for electronic photo that is obtained are: BEKK smoothness 76 seconds, evenness coefficient 90, degree of sizing 24.Its excellent performance has all obtained checking through printing test and combination property experiment.
In embodiment 3, the mass percent of adding acrylic acid/methacrylic acid/ethyl acrylate copolymer and NaOH in pulp material is respectively 0.075% and 0.105%, and all the other conditions are made the level ground amount and are 70g/m similarly to Example 1
2Paper for electronic photo.The mol ratio of the acrylic of total acrylic in acrylic acid/methacrylic acid/ethyl acrylate copolymer and NaOH neutralization is 4:1 at this moment.The performance index of the paper for electronic photo that is obtained are: BEKK smoothness 85 seconds, evenness coefficient 94, degree of sizing 28.Its excellent performance has all obtained checking through printing test and combination property experiment.
In embodiment 4, the mass percent of adding acrylic acid/methacrylic acid/ethyl acrylate copolymer and NaOH in pulp material is respectively 0.100% and 0.139%, and all the other conditions are made the level ground amount and are 70g/m similarly to Example 1
2Paper for electronic photo.The mol ratio of the acrylic of total acrylic in acrylic acid/methacrylic acid/ethyl acrylate copolymer and NaOH neutralization is 4:1 at this moment.The performance index of the paper for electronic photo that is obtained are: BEKK smoothness 92 seconds, evenness coefficient 97, degree of sizing 22.Its excellent performance has all obtained checking through printing test and combination property experiment.
In embodiment 5, the mass percent of adding acrylic acid/methacrylic acid/ethyl acrylate copolymer and NaOH in pulp material is respectively 0.125% and 0.174%, and all the other conditions are made the level ground amount and are 70g/m similarly to Example 1
2Paper for electronic photo.The mol ratio of the acrylic of total acrylic in acrylic acid/methacrylic acid/ethyl acrylate copolymer and NaOH neutralization is 4:1 at this moment.The performance index of the paper for electronic photo that is obtained are: BEKK smoothness 95 seconds, evenness coefficient 100, degree of sizing 20.Its excellent performance has all obtained checking through printing test and combination property experiment.
Comparative example 1 and 2
The same with embodiment 1, in comparative example 1, add acrylic acid/methacrylic acid/ethyl acrylate copolymer, the mass percent of its addition is 0.010%, and the interpolation mass percent is 0.014% NaOH; The addition of acrylic acid/methacrylic acid in comparative example 2/ethyl acrylate copolymer is 0.150%, and the addition of NaOH is 0.201%, and all the other conditions are made the level ground amount and are 70g/m all similarly to Example 1
2Paper for electronic photo.The mol ratio of the acrylic of total acrylic in the acrylic acid/methacrylic acid in the comparative example 1 and 2/ethyl acrylate copolymer and NaOH neutralization is 4:1.The performance index of the paper for electronic photo that is obtained are: the BEKK smoothness is respectively 40 seconds (comparative example 1) and 102 seconds (comparative example 2), the evenness coefficient is respectively 70 (comparative examples 1) and 105 (comparative examples 2), and degree of sizing is respectively 25 (comparative examples 1) and 5 (comparative examples 2).The printing test result of the two is generally, and when comparing combination property, comparative example 1 is general, and comparative example 2 is for poor.
The one-tenth of the foregoing description 1 to 5 and comparative example 1,2 is grouped into and test result is listed in table 1, test result is also represented at Fig. 1.
Table 1
AC-poly: acrylic acid/methacrylic acid/ethyl acrylate copolymer
*: the mol ratio of acrylic and NaOH among the AC-poly
As shown in table 1, when total acrylic in acrylic acid/methacrylic acid/ethyl acrylate copolymer and mol ratio with the acrylic of NaOH neutralization are 4:1, if convert through acrylic, the content of acrylic acid/methacrylic acid/ethyl acrylate copolymer is between 0.025% and 0.125%, then the BEKK smoothness is higher than 50 seconds, the evenness coefficient be higher than 80 and degree of sizing surpass 20, color photocopying is functional.When the content of acrylic acid/methacrylic acid/ethyl acrylate copolymer was lower than 0.025%, the BEKK smoothness was lower than 50 seconds; And when the content of acrylic acid/methacrylic acid/ethyl acrylate copolymer surpassed 0.125%, degree of sizing was lower than that colored printing test findings and combination property all reduce under 20, two kinds of situations.
Below change total acrylic and mol ratio in the acrylic polymers, carried out the colored printing test with the acrylic of NaOH neutralization.Shown in difference in table 2 and the table 3, in embodiment 6 to 11 and comparative example 10, according to the mol ratio adding sodium hydroxide solution of the total acrylic in acrylic acid/methacrylic acid/ethyl acrylate copolymer given in the table with the acrylic that neutralizes with NaOH, all the other conditions similarly to Example 1 respectively.Make the level ground amount and be 70g/m
2The test portion of proportioning shown in embodiment 6 to 11 and comparative example 3 to 10.In comparative example 11, do not add in test portion acrylic acid/methacrylic acid/ethyl acrylate copolymer and the NaOH in addition, all the other conditions are the same with embodiment 1.The same level ground amount of making is 70g/m
2Comparative example 11 shown in the test portion of proportioning.
The result of the foregoing description 6 to 11 and comparative example 3 to 11 is respectively at table 2, lists in 3 and 4.The composition of embodiment 6 to 8 when total acrylic in acrylic acid/methacrylic acid/ethyl acrylate copolymer and mol ratio with the acrylic of NaOH neutralization are 3:1 and comparative example 3 and the results are shown in table 2 wherein, the embodiment 9 to 11 when total acrylic in acrylic acid/methacrylic acid/ethyl acrylate copolymer and mol ratio with the acrylic of NaOH neutralization are 5:1 and the composition of comparative example 4 and the results are shown in table 3, the composition of the comparative example 5 to 11 under other conditions and the results are shown in table 4.In addition, total the test result that changes with acrylic in acrylic acid/methacrylic acid/ethyl acrylate copolymer and mol ratio of embodiment 6 to 11, comparative example 3 to 11 and embodiment 1 to 5 and comparative example 1,2 with the acrylic of NaOH neutralization also in Fig. 1, show.
Table 2
AC-poly: acrylic acid/methacrylic acid/ethyl acrylate copolymer
*: the mol ratio of acrylic and NaOH among the AC-poly
Table 3
AC-poly: acrylic acid/methacrylic acid/ethyl acrylate copolymer
: the mol ratio of acrylic and NaOH among the AC-poly
Table 4
AC-poly: acrylic acid/methacrylic acid/ethyl acrylate copolymer
*: the mol ratio of acrylic and NaOH among the AC-poly
Can draw to draw a conclusion according to table 2.Promptly, when total acrylic in acrylic acid/methacrylic acid/ethyl acrylate copolymer and mol ratio with the acrylic of NaOH neutralization are 3:1, if the addition of acrylate copolymer is 0.010% o'clock, degree of sizing is good, BEKK smoothness and evenness coefficient difference, printing test findings and overall characteristic are poor; And in comparison, the addition of acrylic acid/methacrylic acid/ethyl acrylate copolymer is between 0.050% and 0.125% the time, the BEKK smoothness, and the evenness coefficient, degree of sizing, printing test findings and overall characteristic are all excellent.
As can be seen from Table 3, when total acrylic in acrylic acid/methacrylic acid/ethyl acrylate copolymer and mol ratio with the acrylic of NaOH neutralization are 5:1, if the addition of acrylic acid/methacrylic acid/ethyl acrylate copolymer is 0.150%, BEKK smoothness and evenness coefficient excellence, degree of sizing is poor, and printing test findings and overall characteristic are poor; And in comparison, the addition of acrylic acid/methacrylic acid/ethyl acrylate copolymer is between 0.025% and 0.10% the time, and BEKK smoothness, evenness coefficient, degree of sizing, printing test findings and overall characteristic are all excellent.
In addition, as shown in table 4, when total acrylic in acrylic acid/methacrylic acid/ethyl acrylate copolymer and mol ratio with the acrylic of NaOH neutralization are 2:1, BEKK smoothness and evenness coefficient excellence, degree of sizing is poor, and printing test findings and overall characteristic are poor; And when the mol ratio of the acrylic of the total acrylic in acrylic acid/methacrylic acid/ethyl acrylate copolymer and NaOH neutralization is 6:1, degree of sizing excellence, and BEKK smoothness and evenness coefficient difference, printing test findings and overall characteristic are poor.In addition, shown in comparative example 11, acrylic acid/methacrylic acid/ethyl acrylate copolymer is not carried out under the situation of part neutralization degree of sizing excellence, BEKK smoothness and evenness coefficient difference, printing test findings and overall characteristic inequality.
In addition, when total acrylic in acrylic acid/methacrylic acid/ethyl acrylate copolymer and mol ratio with the acrylic of NaOH neutralization are set at 2:1,3:1,5:1 and 6:1 respectively, though at this moment under the condition of mol ratio 4:1, do not change the experiment of the addition of acrylic acid/methacrylic acid/ethyl acrylate copolymer, still can be inclined to and investigate according to the variation of measurement result shown in Figure 1.Obtaining conclusion is, be fixed between 3:1 and 5:1 with the total acrylic in acrylic acid/methacrylic acid/ethyl acrylate copolymer and with the mol ratio of the acrylic of NaOH neutralization, when adopting the acrylic acid/methacrylic acid of the part neutralization in its scope/ethyl acrylate copolymer, and with respect to dry pulp, the addition of acrylic acid/methacrylic acid/ethyl acrylate copolymer is carried out acrylic when converting, addition should 0.025% and 0.125% between.
In addition, what above embodiment was given is the situation that acrylic acid/methacrylic acid/ethyl acrylate copolymer is used as acrylic acid series polymeric compounds, because what play effect among the present invention is the acrylic that is partly neutralized in the acrylic acid series polymeric compounds, so when using acrylic acid separately, react immediately after adding NaOH, produce the product that polyacrylic acid partly neutralizes, can obtain same effect; Further, also can use other acrylic acid series polymeric compounds equally, as acrylic acid/methacrylic acid copolymer, acrylic acid/ethyl methacrylate copolymers, acrylic acid/methylmethacrylate copolymer etc.
In addition, the result shown in more than in each embodiment and the comparative example all is to be to carry out under BKP:NBKP=90:10, other situations about remaining unchanged as paper technology parameters such as paper pulp beating amount, filling adding amount, cationic starch addition, AKD addition, retention and drainage aid agent addition and level ground amount etc. at pulp content.Though these Papermaking Conditions can be carried out various conversion from the physical property of the electrophotography paper of needs, but, even the paper technology parameter of these paper for electronic photo changes, can not cause substantial influence to test result in the numerical range that routine is used yet.
Claims (4)
1, a kind of paper for electronic photo, it is characterized in that: form with the fiber that is coated with acrylic polymers, and the acrylic polymers that adopts be total acrylic with the mol ratio of the acrylic that neutralizes with NaOH at the acrylic polymers between the 3:1 to 5:1, and the containing ratio of aforesaid propylene acids polymkeric substance is that the acrylic quality number percent that converts with respect to dry pulp is in 0.025～0.125% scope.
2, paper for electronic photo according to claim 1, it is characterized in that: described acrylic polymers is that selects in acrylic acid/methacrylic acid/ethyl acrylate copolymer, acrylic acid/methacrylic acid copolymer, acrylic acid/ethyl acrylate copolymer, acrylic acid/methylmethacrylate copolymer and polyacrylic acid is at least a.
3, paper for electronic photo according to claim 1 is characterized in that: the BEKK smoothness of described paper for electronic photo was above 50 seconds.
4, paper for electronic photo according to claim 1 is characterized in that: the degree of sizing of described paper for electronic photo surpasses 20.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2006/309267 WO2007129400A1 (en) | 2006-05-08 | 2006-05-08 | Electrophotographic paper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101438212A true CN101438212A (en) | 2009-05-20 |
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ID=38667517
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006800545045A Pending CN101438212A (en) | 2006-05-08 | 2006-05-08 | Paper for electronic photo |
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| Country | Link |
|---|---|
| JP (1) | JPWO2007129400A1 (en) |
| CN (1) | CN101438212A (en) |
| WO (1) | WO2007129400A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102383337A (en) * | 2011-09-08 | 2012-03-21 | 金华盛纸业（苏州工业园区）有限公司 | Method for making colored laser paper and colored laser paper thereof |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59212846A (en) * | 1983-05-18 | 1984-12-01 | Hitachi Ltd | Electrophotographic transfer paper |
| JP3198166B2 (en) * | 1992-09-21 | 2001-08-13 | 三菱製紙株式会社 | Transfer sheet |
| JP3494414B2 (en) * | 1993-02-12 | 2004-02-09 | 富士写真フイルム株式会社 | Photographic paper support |
| JPH0822137A (en) * | 1994-07-08 | 1996-01-23 | Mitsubishi Paper Mills Ltd | Electrophotographic transfer paper |
| JP4452482B2 (en) * | 2003-08-22 | 2010-04-21 | 三菱製紙株式会社 | Wet electrophotographic recording sheet |
| JP2006091902A (en) * | 2005-10-14 | 2006-04-06 | Fuji Xerox Co Ltd | Transfer paper for electrophotography |
-
2006
- 2006-05-08 CN CNA2006800545045A patent/CN101438212A/en active Pending
- 2006-05-08 JP JP2008514344A patent/JPWO2007129400A1/en active Pending
- 2006-05-08 WO PCT/JP2006/309267 patent/WO2007129400A1/en active Application Filing
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102383337A (en) * | 2011-09-08 | 2012-03-21 | 金华盛纸业（苏州工业园区）有限公司 | Method for making colored laser paper and colored laser paper thereof |
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|---|---|
| WO2007129400A1 (en) | 2007-11-15 |
| JPWO2007129400A1 (en) | 2009-09-17 |
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| JPH05287694A (en) | Deterioration-prevented paper |
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Application publication date: 20090520 |