CN1221853C - Diazonium duplicating material, dyeline and diazonium duplicating image forming method - Google Patents
Diazonium duplicating material, dyeline and diazonium duplicating image forming method Download PDFInfo
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- CN1221853C CN1221853C CN 01129608 CN01129608A CN1221853C CN 1221853 C CN1221853 C CN 1221853C CN 01129608 CN01129608 CN 01129608 CN 01129608 A CN01129608 A CN 01129608A CN 1221853 C CN1221853 C CN 1221853C
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Abstract
Provided is a diazo photosensitive paper used a neutral paper as a supporter, the said sensitive paper can prevent pre-coupling reaction during preservation to obtain excellent image part texture. The diazo photosensitive paper series of the invention sets up a sensitive layer with the diazo compound and couple component as the major constituent through the precoating on the supporter, a back coating to form a diazo copying material on the opposite surface of the sensitive layer. The said supporter is made of neutral paper with the paper surface PH higher than 6 and is processed with a cypres containing polyvinyl alcohol or soluble modified starch.
Description
Technical field
The present invention relates to a kind of diazo copying material, diazo copying method and diazo copying image processing system of novelty.
Background technology
Diazo copying method in the past is: original copy is stacked and placed on is being provided with at least on the body paper on the photocopying materials of photographic layer, the various auxiliary agents that described photographic layer contains diazo-compounds (emulsion), coupling composition (colour former) reaches optionally and add, under alkali condition, develop, make diazo-compounds and coupling composition play coupling reaction, its result generates diazo colours and forms image.
Owing to be difficult to take place coupling reaction under acid condition, even make diazo-compounds and the coexistence of coupling composition, the relation between them is also very stable.Therefore, require the diazo copying material when storage (use before), coupling reaction not to take place usually, in case when forming image then coupling reaction takes place rapidly with the formation image.For this reason, for making the diazo copying material coupling reaction does not take place as far as possible when storing, people require the diazo copying material can remain on acid state when storage.
Also be based on above-mentioned reason, be as on the body paper of diazo copying material support in the past, uses the acidic paper that the gluing sticking agent is prepared, paper pH is about 2-5 as the acid accumulator size of rosin sizing agent etc. and aluminium sulphate etc.
About the body paper as diazo copying material support, also the someone had proposed various improvement projects in the past.
For example, disclose a kind of method on the Japanese patent laid-open 5-29516 number open communique, this method is to upload at body paper to be equipped with the zirconium compounds that is used to improve tackiness and water repellency.On the Japanese patent laid-open 6-67343 number open communique a kind of method for improving wetting tension intensity and adding special positive particle starch for the security of human body has been proposed.These methods all are to do at acidic paper.
Yet, though paper is acid, when being used as the support of diazo copying material, various situations as described below can take place, these situations have obtained paying attention to recently, and are extremely to be solved, but do not have solution so far.
Easy variable color of acidic paper and weathering owing to used tiny clay of particle diameter or talcum powder as filler, therefore are easy to generate the paper powder thereon.These paper powder are stranded in the copy device, not only the various performances of installing itself are brought adverse effect, and can be attached on the image.
Again because acid, for a long time repeatedly after the copy image, device can corrosion, gets rusty.
Have, actual conditions are again: being provided with of photographic layer etc. needs body paper to have certain stiffness, for further improving the water resistance of photocopying materials, also uses behind the material of overbrushing cloth such as melmac etc.Up to now, acidic paper is made as the dedicated paper of diazo copying material.Yet, in recent years, because the situation that acidic paper is difficult to purchase has taken place in the rising of cost.
And, as mentioned above, because be coated with the material of water-proofing agent etc., so, even use the disassociation agent also to be difficult to described material dissociated from paper.Therefore, the problem of generation is: paper can't be taken off the regeneration that is used for resource from used diazo copying material.
Thus, people urgently expect to develop a kind of paper, and described paper can replace acidic paper in recent years, with the support as the diazo copying material.
Summary of the invention
Problem of the present invention is: a kind of diazo copying material is provided, and described diazo copying material uses the paper that replaces acidic paper as support.
Problem of the present invention is again: a kind of diazo copying material is provided, and the pre-coupling reaction when described diazo copying material can prevent to store can obtain excellent image homogeneity, flatness and image compactness (below, be called for short the quality of image section).
Problem of the present invention is again: a kind of diazo copying material is provided, and described diazo copying material reproducible utilization is as the paper of support.
Problem of the present invention also is: a kind of paper that can be used for diazo copying material support, replaces acidic paper is provided.
Description of drawings
Fig. 1 is a representational diazo copying image processing system synoptic diagram of the present invention.
Among the figure, 1 for photocopying materials inserts mouth, and 2 are exposure portion, and 3 is the original copy receiving portion, and 4 is development section, and 5 is the copy receiving portion, and 6 is gas exhaust duct.
Embodiment
The paper that present inventors just can replace acidic paper has carried out repeatedly research to neutralized paper.
Neutralized paper refers to use material as lime carbonate, porcelain earth, talcum, titania etc. as filler, uses the paper of making as sizing agent as the material of alkyl ketene dimer, enetutanedioic acid anhydride etc.
The surface p H of above-mentioned neutralized paper is the alkalescence of about 6-9 scope, and known this alkalescence results from contained filler in the described alkaline paper.Again, the pH in the paper is about the scope of 8-10.
Usually, paper surface p H system indicates medicament to drip behind the paper surface pH, compares with pH standard colorimetric meter and determines.Again, the pH in the paper (extracting pH) is being cut into the scraps of paper under the state in small, broken bits, with recording the pH of distilled water with pH meter after distilled water stirring, the placement and determining.
Investigation according to the present inventor, in the recording medium of the image recording technology of the broad sense that is used for comprising diazo copying, propose to use neutralized paper as the diazo copying material only relevant for Japanese patent laid-open 8-269893 number open communique of ink-jet recording paper.
This communique proposes, owing to be contained in lime carbonate and the carboxyl reaction that is contained in the black dyestuff of seal in the neutralized paper, causes image quality decrease, therefore, as solution, can use silicic acid class material as filler to replace lime carbonate.In people's such as present inventor experiment, confirm to take place such problem; Paper pH oxytropism changes, and causes being applied to the diazo copying material.
People such as present inventor again when using neutralized paper the above-mentioned problem that causes because of acidic paper can how to test, the result knows that neutralized paper is far superior to acidic paper aspect following.
The first, compared with acidic paper, use neutralized paper to be difficult to take place the deterioration of variable color or weathering etc.
The second, the filler of use comes compared with materials such as employed talcums in the acidic paper, its quality softness, and particle diameter is less, is difficult to produce the paper powder, thereby, also reduce the duplicating machine inner part and damaged caused trouble.
The 3rd, there is not acidity, reduce corrosion.
The 4th, because acidic paper does not use anti-hydrated agent, and on neutralized paper resin acquisition water resistance (increase of paper intensity) by neutral sizing agent and positive particlized, the dissociation properties that can not hinder paper, therefore, its regeneration is easy.
Secondly, people such as present inventor use neutralized paper as support, and directly being provided with diazo-compounds and coupling composition thereon is the photographic layer of major component, makes sample and tests.Find that this sample can undesirable coloration when storage yet, or low and the situation that the image section quality is worsened of formed image aberration.
That is, illustrated as described above, the time pre-coupling reaction does not take place for making the diazo copying material in storage, be necessary to make described material to keep acid state, but the occasion of property paper in use, this is difficult, the most maximum problem.
People such as present inventor occur during to above-mentioned use neutralized paper does not wish analyzing of factor, results verification: the aforesaid alkaline components that is present in the neutralized paper has hindered the stability of sensitized paper, and, this alkaline components is shifted to photographic layer owing to absorb moisture in storage, at leisure and be present between the coupling agent composition in the photographic layer pre-coupling reaction take place.
People such as present inventor with regard to the carrying out that how to prevent above-mentioned pre-coupling reaction repeatedly research, find: when use contains the paper of alkaline components, make contain in the diazo copying material tool block the alkaline components materials with function (below, abbreviate the alkali blocking agent as), then alkaline components in the paper and alkali blocking agent react, suppressed the reaction of the coupling agent in itself and the photographic layer, obtained effect very thus, thereby finished the present invention.
Promptly, according to the present invention, the diazo copying material has used the paper that contains alkaline components as support, described diazo copying material is that the photographic layer of major component is formed by this support with diazo-compounds and coupling agent composition at least, and contain and have the materials with function of blocking described alkaline components (below, be called the alkali blocking agent).
Be preferably, diazo copying material of the present invention is provided with precoated shet between support and photographic layer, is provided with back coating at the opposite side (opposition side of photographic layer one side) of support.
Again, diazo copying material of the present invention contains the alkali blocking agent in precoated shet and/or back coating and photographic layer, be provided with the external coating that contains the alkali blocking agent on photographic layer.
Be preferably, the alkali blocking agent of diazo copying material of the present invention is at least a in hydrophobic resin or the hydrophilic resin, the alkali blocking agent of diazo copying material of the present invention is acidic materials, described acidic materials are the sulfate or the chloride of alkaline metal, earth alkali metal and aluminium, or water-soluble and nonvolatile organic acid or mineral acid, can be contained in the back coating.
Again, the hydrophilic resin of diazo copying material of the present invention is polyvinyl alcohol (PVA) and/or soluble starch, and the hydrophobic resin of diazo copying material of the present invention is at least a for being selected from polyvinyl acetate resin, polystyrene-poly acrylic copolymeric resin, polystyrene-poly methacrylate-polyacrylate copolymer resins, the Polyvinylchloride-polyacrylic acid copolymerized resin.
Diazo copying material of the present invention is a support with the paper that contains the waste paper regenerated paper pulp more than 50%, or described diazo copying material with by the alkali blocking agent inaccessible in advance the paper of alkaline components, the lime carbonate that contains 0.5-20% be the paper of alkaline components and contain polyvinyl alcohol (PVA) and/or paper that the Cypres of solubility modified starch was handled is support.
Diazo copying material of the present invention can form drum and bag shape goods, and described bag shape goods are that above-mentioned diazo copying material is cut into certain size, and a plurality of overlapping being built in the packed thing.
Diazo copying method of the present invention is original copy to be placed on the above-mentioned diazo copying material expose, and then, develops under alkali condition.
Diazo copying image processing system of the present invention has exposure portion and development section, and places above-mentioned diazo copying material and form.
The following describes effect of the present invention.
Can understand that from above-mentioned detailed specific description diazo sensitized paper of the present invention ties up to the diazo sensitized paper paper of establishing on the above neutralized paper of paper pH6 with specific Cypres processing, the diazo copying material is set at this on paper again and form.Although use the neutralized paper support, diazo sensitized paper of the present invention still can obtain to have excellent even, soft image, the image of sensitized paper memory property, high Chromaticity, high concentration and image quality and form back substrate variable color effect seldom.
Below, describe with regard to alkali blocking agent contained in the diazo copying material of the present invention.
So-called alkali blocking agent refers to the diazo-compounds of alkaline components from photographic layer and the material of coupling agent composition isolation that will be present in the neutralized paper.Described isolation and do not require too complete, as long as can reach as purpose of the present invention, when preventing to store pre-coupling reaction, obtain excellent image the alkali blocking agent contain state.
In the present invention, described isolation can be used special material, undertaken by following three kinds of methods, but also can be separately or and close these methods of use.
First method is the blocking layer (claiming the restraining barrier again) that the alkaline components that blocks body paper is set.
Can enumerate the precoated shet that between support and photographic layer, is provided with, be arranged at the back coating of support opposite side (opposition side of photographic layer one side) and be arranged at external coating on the photographic layer as blocking layer.One deck at least in the described coating can be set, but precoated shet that effect is set is best.
Have, above-mentioned precoated shet, back coating and external coating also can be not only to be provided with one kind ofly, but are provided with more than two kinds again; Perhaps, described three layers can also can optionally be provided with more than two layers respectively with the individual layer setting.
Be preferably, precoated shet and back coating are be covered the fully coating of adjacency of overlay film shape.Even be not to be covered fully, also can as long as reach the state of aforesaid effect of the present invention.
Again, can be following above-mentioned on precoated shet and the back coating, have other functions that diazo copying material is in the past had simultaneously.
As external coating, as long as its formation can not counteract the sensitization function of photographic layer, what the stratiform of its formation can be with above-mentioned precoated shet or back coating is the same.
Common photocopying materials is with its surface and the direct state of contact in the inside, or the photocopying materials of growing size to be being wound into the goods of drum, or goes on the market with a plurality of overlapping states that place the packed goods that form in packed thing after being cut into certain size.
Therefore, back coating and/or external coating are set, then the photographic layer surface does not directly contact with the support the inside, can prevent the generation of pre-coupling reaction.
The material that is used for the restraining barrier is also unrestricted, but is advisable with the good material of film forming, is preferably, and uses hydrophobic resin and hydrophilic resin etc.It specifically is exemplified below.
Hydrophobic resin: vinyl acetate is a resin, acrylic resin, cinnamic acrylic ester based copolymerized resin, vinyl chloride acrylate based copolymerized resin, the wax class of Tissuemat E etc.
Hydrophilic resin: polyvinyl alcohol (PVA), solubility modified starch, gelatin, casein, carboxymethyl cellulose, mosanom.
Hydrophobic resin can use more than one, and hydrophilic resin also can use more than one, makes at least a being contained in the precoated shet in hydrophobic resin or the hydrophilic resin.Be more preferably, simultaneously and with hydrophobic resin and hydrophilic resin, be more preferably, use its film-forming temperature at-5 ℃-50 ℃ above-mentioned resin.
Result of use is better simultaneously for first method and following second method.
Second method is to make material contain acidic materials, and nationality is by neutralize alkaline components in (consumption) paper of described acidic materials.
Acidic materials are contained in one deck at least of photographic layer, precoated shet, back coating and external coating, particularly, acidic materials are contained in have more effect in the back coating, in addition, also can use simultaneously with above-mentioned first method.
Again, and close when using hydrophobic resin and hydrophilic resin, be preferably, the kind and/or the use amount of selected acidic materials, unstable and cause the cohesion of coating fluid with the emulsion that does not make hydrophobic resin.
The acidic materials that are used for said method there is no special qualification, but are advisable with water-soluble, nonvolatile.It specifically is exemplified below.
Organic acid: citric acid, tartrate, malic acid, 5-sulfonic group salicylic acid, p-toluenesulfonic acid.
Mineral acid: sulfuric acid, boric acid.
Metal salt compound: as the metal sulfate or the chloride of zinc, calcium, aluminium, magnesium etc.
Third party's method is, the resin that uses in first method is contained in the sizing agent of internal sizing or outside (surface) applying glue, copies and make paper, as support, and/or make to contain in the material and be soaked with employed acidic materials in the second party method, with in and paper behind the alkaline components as support.
Below, describe diazo copying material of the present invention again in detail.
In the diazo copying material that in the past uses acidic paper as support, the coating that is known as precoated shet and back coating equally has the function that is different from the restraining barrier, but described be used in the past precoated shet and the technology of back coating also applicable to diazo copying material of the present invention.For example, be to improve image color, can make the inorganic micro powder end of containing silicon dioxide etc. in the precoated shet,, contain alcohols material in the coating overleaf perhaps for preventing warpage (crispaturaing).
The resin that constitutes aforementioned restraining barrier is the function with the cementing agent that forms precoated shet, back coating, external coating.
Polyvinyl alcohol (PVA) as one of hydrophilic resin can use fully saponified or partly-hydrolysed polyvinyl alcohol (PVA).Consider from the stability of masking liquid, film forming when the restraining barrier forms, good especially be to use the degree of polymerization about 500-2000, saponification degree is at the polyvinyl alcohol (PVA) of 80-100%.
Again, as the starch that the hydrophilic resin among the present invention uses, the good especially solubility modified starch that is to use.The solubility modified starch refers to make the starch of modification for reducing farinose viscosity such as fermentation starch, oxidized starch, Hydroxyethyl Starch, cationic starch, starch phosphate, acetic starch.
The solubility modified starch is better than farinose reason, living starch as cornstarch, tapioca, potato starch or rice kind of starch etc. comes compared with the solubility modified starch, and its solubleness is lower usually, and viscosity is very big, therefore liquid becomes pasty state, or can not get enough film formings.
On the other hand, the solubleness of solubility modified starch more than 3% (weight), particularly the dissolving viscosity of 5% (weight) when 100mPa/s is following, quality and fading of image portion in the time of can improving as the diazo copying material are greatly improved performance, simultaneously, consider that from the stability that stops layer forming liquid and when coating described modified starch also suits.
In addition, the polyacrylamides (being called PAM), styrene-maleic acid copolymer, carbamide resin etc. that are used for common in the past sizing agent are not enough because of its barrier properties, have the tendency that picture contrast is poor, homogeneity is low when being used for the diazo copying material, so can not say so is applicable to the material of the object of the invention.
The hydrophobic resin that is used to form restraining barrier of the present invention is also without particular limitation, but from easily manufactured consideration, is advisable with emulsion-type.
As mentioned above, be preferably use polyvinyl acetate, polyacrylate, polystyrene-acrylate copolymer, polystyrene-methacrylate-acrylate copolymer or Polyvinylchloride-acrylate copolymer.
Above-mentioned resin is advisable at-5 ℃-50 ℃ with its film-forming temperature, uses the resin of this scope, because of improving the barrier properties of support, keeps good memory property, and can obtain excellent image quality, so desirable especially.
Again, above-mentioned film-forming temperature typically refers to after being coated with sample (resin sample) on glass plate or the sheet metal, the film temperature when slowly adding the thermosetting film.
Hydrophobic resin can be as the independent use of diazo copying material in the past, but be preferably, solubility modified starch in the past or polyvinyl alcohol (PVA) also close use, and close and use solubility modified starch and polyvinyl alcohol (PVA), and be effective especially for reaching the object of the invention.
When formation was the restraining barrier of major component with the hydrophilic resin, the amount of being used that forms the hydrophilic resin in the liquid was advisable with 0.1-5% (weight) in the occasion of precoated shet, and the occasion of coating and external coating is advisable with 0.3-3% (weight) overleaf.
The coating weight of precoated shet with its dried adhesion amount at 0.5-4.0g/m
2Be advisable.Coating weight is at 0.5g/m as described
2More than, then can evenly cover support, the infiltration of diazonium photographic layer is irregular less, can fully reach the effect of the pre-coupling reaction when preventing to store.
Coating weight is at 4.0g/m as described
2Below, the inhomogeneous infiltration of diazonium photographic layer to precoated shet then can not take place, therefore, the low of light sensitivity and developing performance can not taken place yet, comparatively desirable.
When needing, can and close lubricant, colorant and other the auxiliary agent that uses employed polyethylene-based wax, Brazil wax etc. in the common diazo copying material on precoated shet.
The coating weight of back coating with its dried adhesion amount at 0.1-3.0g/m
2Scope be advisable.Coating weight is at 0.1g/m as described
2More than, then not only regulate warpage easily, and the pre-coupling reaction can suppress to store the time.
Coating weight is at 3.0g/m as described
2Below, then not only control warpage easily, and can keep enough developing performances.
Have again, the coating weight of external coating with its dried adhesion amount at 0.5-5.0g/m
2Scope be advisable.Coating weight is at 0.5g/m as described
2More than, then can guarantee barrier properties, the inhibition effect of the pre-coupling reaction when keeping storage.Coating weight is at 5.0g/m as described
2Below, the inhibition effect of pre-coupling reaction that then can be when keeping storage can keep the color emissivity and the developing performance of sensitized paper, simultaneously so above-mentioned scope is comparatively desirable.
When using the solubility modified starch as hydrophilic resin, the use amount of solubility modified starch is advisable with 1.0-5.0% (weight) when using separately in precoated shet and the back coating.
The solubility modified starch is advisable with 0.1-5.0% (weight) in precoated shet with the hydrophobicity emulsion resin and close use amount when using, is advisable with 0.3-3.0% (weight) in coating and the external coating overleaf.
Have again, when using the solubility modified starch, the coating weight of precoated shet with its dried adhesion amount at 0.5-4.0g/m
2Be advisable.Coating weight is at 0.5g/m as described
2More than, then can evenly cover support, the infiltration of diazonium photographic layer is irregular less, and the image quality can not descend.Coating weight is at 4.0g/m as described
2Below, then can suppress diazonium sensitization liquid to infiltration to precoated shet, therefore, the low of the irregular and light sensitivity of the infiltration of sensitization liquid also can not be taken place.
In the present invention, as second method that prevents the pre-coupling reaction of diazo copying material when storing, be to make to contain acidic materials in the restraining barrier.It can use foregoing calcium, aluminium for example, reach the sulfate or the chloride of zinc.For example, can use calcium sulphate, aluminium sulphate, zinc sulfate, lime chloride, aluminum chloride, zinc chloride etc.
The sulfate of above-mentioned metal, muriatic use amount and without particular limitation are counted 0.2-4.0% with the weight for the restraining barrier usually, are preferably 0.1-3.0%.More than 0.2%, then can keep the inhibition effect of pre-coupling reaction as this use amount, below 4.0%, the reaction with diazo-compounds can not take place then, can not separate out the salt (crystallization) of diazo-compounds and metal as this use amount.
Again, the acid that is used for the restraining barrier is preferably and uses water-soluble and nonvolatile acid.As previously mentioned, the representativeness of mineral acid has sulfuric acid, boric acid etc. for example, and organic acid then can be enumerated citric acid, tartrate, malic acid etc.
Be contained in sour use amount in the restraining barrier with 0.1-5.0g/m
2Scope be advisable.Be more preferably 0.2-2.0g/m
2Scope.The acid use amount is many more, and the pre-coupling reaction effect when then diazo-compounds is stored is big more, and and for example described use amount is at 5.0g/m
2Below, then be difficult to take place the corrosion of support, so comparatively desirable.
Above-mentioned third party's genealogy of law is made in the operation the copying of the paper that is contained in alkaline components as support, hydrophobic resin and/or hydrophilic resin is contained in the sizing agent liquid of internal sizing or outside (surface) applying glue, to block the method for alkaline components.This method is maintained at the scope of the state more than 6, below 9 applicable to paper pH or extracting pH, so comparatively desirable.
Hydrophobic resin and/or the hydrophilic resin content in sizing agent liquid is counted 0.2-4.0% with the weight for support, is preferably 0.5-3.0%.More than 0.2%, then can keep the inhibition effect of pre-coupling reaction as this use amount, below 4.0%, then can prevent the problem that is taken place because of the deposition dirt thing of copying in the system operation (corrective that alkaline matter and acidic materials reaction generate) as this use amount.
In diazo copying material of the present invention, the back coating contain the alkali blocking agent as mentioned above is set, then can be except blocking alkaline components, also can have following other function simultaneously.
The many pieces of diazo copying materials that the printer of use diazo copying material is to use paste will duplicate the formation image more make book.Yet, the present inventor finds, use contains the support of the paper of alkaline components as the diazo copying material, above-mentioned paste adhesion section then can take place redden (being called " mucilage is rubescent "), and described rubescent part makes the problem that picture and text partly are difficult to clearly illustrate of duplicating.Is used in the paste composition that book makes and mainly contains water-based emulsion, water-based and modification vinyl acetate resin etc., but the present inventor confirms: above-mentioned mucilage is rubescent be since the reaction of described alkaline components and paste extremely.
In diazo copying material of the present invention, nationality can prevent the generation of above-mentioned " mucilage is rubescent " phenomenon by the setting of the back coating that contains the alkali blocking agent.
As employed support among the present invention, so long as contain getting final product of alkaline components, and without particular limitation, but because of the use neutralized paper is effective usually, so, mainly describe at this with neutralized paper.
Employed neutralized paper refers to paper pH more than 6 among the present invention, and more specifically, its paper pH is at the neutralized paper of 6-9.Be more preferably, use the neutralized paper of the water extract pH of JIS P 8113 prescribed by standard at 7-9.Even 1. the neutralized paper of this pH as the support that does not contain the diazo copying material of alkali blocking agent, also can be useful on purpose of the present invention.
As the Cypres of neutralized paper, as contain polyvinyl alcohol (PVA) or solubility modified starch, then can be used as and have water tolerance and alkali-proof restraining barrier, so preferentially use.That is, can alleviate adverse effect, reduce diffusion in the support and infiltration as alkaline matters such as the lime carbonate in the neutralized paper of support, porcelain earth, talcum, titania.Therefore, we think and can eliminate shortcoming when using the neutralized paper body paper.Have again, make and contain specific slaine, acid in photographic layer and the back layer, the shortcoming in the time of also can eliminating above-mentioned use neutralized paper body paper by this more reliably.
Even use neutralized paper that above-mentioned specific Cypres copies system 2. as the support that does not contain the diazo copying material of alkali blocking agent, also can be used for purpose of the present invention.
As support, be preferably, Cypres is polyvinyl alcohol (PVA) or soluble starch, and the lime carbonate consumption that wherein contains the filler of conduct is 0.5-20.0%, and is then more effective at 0.6-10.0% as its content.
Even the neutralized paper of stating the system of copying under the condition of Cypres and filler in the use also can be used for purpose of the present invention 3. as the support that does not contain the diazo copying material of alkali blocking agent.
Again, have simultaneously above-mentioned 1. 2. 3. in the neutralized paper of at least two conditions can be used for the support of diazo copying material of the present invention, even, also can be used for purpose of the present invention as the support that does not contain the diazo copying material of alkali blocking agent.
Employed neutralized paper among the present invention, chemical pulp, sizing agent, the filler of tree bleached kraft pulp (being called for short LBKP), bleached hardwood kraft pulp (being called for short NBKP) representative during based on pin, optionally, what re-use other copies the paper auxiliary agent, copies system by usual method.Employed paper pulp material also can and close and uses mechanical pulp and waste paper regenerated paper pulp, perhaps, and also can be with the latter two as the paper pulp main body.
Waste paper regenerated pulpwood described in the present invention, can enumerate the raw material paper shown in the waste paper standard quality specification table of being worked out as (juridical person) waste paper regenerated promotion center, as above cut paper (cutting on the spy) on blank sheet of paper (go up white), Gui blank sheet of paper (Gui is white), milky white paper (Network リ one system is white), card paper, extra white paper (extra white), middle blank sheet of paper (in white), simile paper, look blank sheet of paper (look white), Kent paper (kent), white art paper, the spy, do not go up cut paper (not cutting), newsprint, magazine etc.
More specifically, can use as the relevant non-coating accounting machine paper of information industry, the print paper of heat sensitive paper, impact paper etc. with paper; Or PPC is with the coated paper with paper, art paper, coated paper, little coated paper, glossy paper etc. such as the office of paper etc.; Or good quality paper, painted good quality paper (matter on the look), notebook paper, correspondence paper, wrapping paper, facing paper, middle matter paper (middle matter paper), newsprint, rudimentary printing paper, high-quality are hung paper (ス one バ one sobs or sigh and runs quickly), simile paper, pure white roll web, the waste paper and the waste paperboard of the uncoated paper of milk dixie cup etc. etc.; Can use chemical pulp sheet, contain the paper of high usage paper pulp etc., but to whether lettering, duplicating, printing, non-printing and without particular limitation.
The diazo salt that the diazo-compounds that uses among the present invention is represented as general formula ArNX (in the formula, Ar represents to replace or the aromatic series part of non-replacement, and ArN represents the diazo salt kation, and X represents acid anion).
Object lesson as diazo-compounds can be enumerated, as 4-diazonium-N, accelerine, 4-diazonium-N, the N-diethylaniline, 4-diazonium-N, N-dimethyl hydroxyethyl aniline, 4-benzene diazonium morpholine, 4-diazonium-N, the N-dibutyl aniline, 4-diazonium-2,5-Dimethoxyphenyl morpholine, 4-diazonium-2,5-diethoxy phenyl morpholine, 4-diazonium-2,5-dipropoxy phenylmorpholine, 4-diazonium-2,5-dibutoxy phenylmorpholine, 4-diazonium-2,5-dibutoxy-N-benzyl-N-ethylaniline, 4-diazonium-2,5-dibutoxy-N, the N-dibutyl aniline, 4-diazonium-2,5-dibutoxy-N-benzyl-N-phenetidine, 4-diazonium-2,5-dibutoxy phenylpiperazine, 4-diazonium-2,5-diethoxy phenyl pyrrolidine, 4-diazonium-2,5-dipropoxy Phenylpiperidine, 4-diazonium-2,5-diethoxy-N, accelerine, 4-diazonium-1-benzamido-2,5-dibutoxy benzene, 4-diazonium-1-(4 '-methoxybenzoyl amino)-2, the 5-dimethoxy benzene, 4-diazonium-1-(4 '-methoxybenzoyl amino)-2, the 5-diethoxybenzene, 4-diazonium-1-(4 '-methoxybenzoyl amino)-2,5-dipropoxy benzene, 4-diazonium-1-(3 '-chlorobenzoyl amino)-2, the 5-diethoxybenzene, 4-diazonium-1-(3 '-methoxybenzoyl amino)-2,5-dibutoxy benzene, 4-diazonium-1-(3 '-toluyl amino)-2, the 5-dimethoxy benzene, 4-diazonium-1-phenyl mercaptan base-2,5-dipropoxy benzene, 4-diazonium-1-(4 '-toluoyl phenyl mercaptan base)-2, the 5-diethoxybenzene, 4-diazonium-1-(4 '-methoxyphenyl mercapto)-2,5-dibutoxy benzene, 4-diazonium-1-(4 '-chlorphenyl mercapto)-2, the 5-dimethoxy benzene, 4-diazonium-1-(3 '-benzoyl mercapto)-2, the 5-diethoxybenzene, 4-diazonium-1-(3 '-methoxyphenyl mercapto)-2,5-dipropoxy benzene, 4-diazonium-1-(2 '-benzoyl mercapto)-2,5-dibutoxy benzene, 4-diazonium-1-phenoxy group-2,5-dibutoxy benzene, 4-diazonium-1-(4 '-methoxyl phenoxy group)-2, the muriatic zinc chloride of 5-diethoxybenzene etc., caddy, the double salt of tin chloride etc., and the sulfuric acid of above-mentioned diazonium, hexafluorophosphoric acid, the salt of the mineral acid of tetrafluoro boric acid etc. etc.
Employed coupling agent is used for and the diazo-compounds coupling forms pigment among the present invention, and the so-called activity methene compound that has methylene on the carbonyl next door, phenol derivatives, naphthol derivative etc. are arranged.
For example; can enumerate resorcinol; phloroglucin; 2; 3-dihydroxy naphthlene-6-sodium sulfonate; 2-hydroxyl-3-naphthoic acid morpholino propyl amides; 2-hydroxyl-3-naphthoic acid glycollic amide; 2-hydroxyl-3-naphthoic acid-N; N-dimethylamino-morpholino propyl amides; 2-hydroxyl-3-naphthoic acid octyl group acid amides; 1-hydroxyl-2-naphthoic acid morpholino propyl amides; 1; the 5-dihydroxy naphthlene; 2; the 3-dihydroxy naphthlene; 2; 3-dihydroxy-6-sulfanilyl naphthalene (sulfanil naphthalene); 2; 7-dihydroxy naphthlene-3; the 6-sodium disulfonate; 2; 3-dihydroxy naphthlene-6-sulfonic acid; 1-hydroxyl naphthalene-4-sodium sulfonate; 2-hydroxyl-3-benzoic acid aniline; benzoyl-N-antifebrin; 3-hydroxyl cyanoacetanilide; to the sulfo group antifebrin; 1-phenyl-3-methylpyrazole quinoline-5-ketone; 1-(2; 4; the 6-trichlorophenyl)-3-anilino-pyrazolin-5-one; 2; 4-pair-(benzoyl acetylamino) toluene; 1,3-pair-(pivaloyl group acetylamino methyl) benzene etc.Certainly, be not limited to these, in addition, these coupling agents promptly can use separately, also can and close and use more than two kinds, and are different on demand, can obtain form and aspect arbitrarily.
The usage ratio that forms the diazo-compounds of photographic layer and coupling agent by weight, diazo-compounds 0.5-1.5% normally, coupling agent 0.5-1.5% is more preferably, diazo-compounds 0.7-1.2%, coupling agent 0.9-1.1%.Less than 0.5%, the light sensitivity when then photocopying materials duplicates is overrun as the diazo-compounds use amount, surpasses 1.5% as the diazo-compounds use amount, and the light sensitivity when then photocopying materials duplicates is slow excessively.
In diazo copying material of the present invention, except above-mentioned color development composition, also can use the slaine of the aromatic sulphonate, cadmium sulfate, magnesium sulphate, caddy, zinc chloride, zinc sulfate, aluminium sulphate etc. of in common diazo copying material employed various adjuvants, naphthalene-monosulfonic acid sodium, naphthalene-sodium disulfonate, naphthalene-sodium trisulfonate, sulfosalicylic acid etc. as the auxiliary agent that improves memory property.
As the image color reinforcing agent, can use cataloid, amorphous silica micropowder etc. again.As development accelerant, can use the polyvalent alcohol and the derivant thereof of glycols, gylcol ether etc.
Have, as lytic agent, can use the alcohols of caffeine, theophylline and ethanol, isopropyl alcohol etc., other also can use saponin.
As above the diazo copying material of the present invention of Zhi Zaoing can be with the dry process development method of using ammonia, use known in the past developing method, developer and the image processing systems such as half dry type development method (as developer solution to the adhesion amount of diazonium photocopying materials less than 5g/m, be called a spot of wet development method) of alkali organic solvent to develop.
Illustrating of representational diazo copying image processing system in Fig. 1, below, the order of pressing the diazo copying method describes in detail.
1. photocopying materials inserts mouth, and original copy and diazo copying material is overlapping, inserts a mouthful insertion from photocopying materials.
2. diazo copying material of Cha Ruing and original copy expose by original copy in exposure portion, and original image portion is because of being covered light, can not sensitization and preserve, and an only non-image printing opacity, diazo sensitizer decomposes.
Photosensitive material in the photographic layer of formation diazo copying material has the character of decomposing under the 350-450nm wavelength light is shone, therefore, light source uses high-pressure mercury-vapor lamp or is exclusively used in the special-purpose fluorescent light (in this example, the light source among the figure has used high-pressure mercury-vapor lamp) that this field has luminescent spectrum.
3. the diazo copying material after the exposure separates with photocopying materials because of original copy, and its photocopying materials is sent to development section, and original copy is sent to the original copy receiving portion.
4. the photocopying materials after separating is sent to development section and develops.
The development nationality is by photocopying materials being become alkalescence and finishing, usually use the ammoniacal liquor of 20-30%, or make water or organic solvent with the amine of monoethanolamine etc., as the liquid after the inorganic base substance dilution of lime carbonate, potassium metaborate etc. (development section is an example of dry copier among the figure, is to make the mode of photocopying materials by developing in the atmosphere that ammoniacal liquor is heated to 100-130 ℃ and vaporize).
In the half dry type visualization way, (being equivalent to the duplicating machine of the SD-730 among the embodiment) exposure has been to use the fluorescent light of diazo duplicator, by with amines and inorganic alkaline agent dissolving, be diluted in the organic solvent such as ethylene glycol and form developer solution, make this developer solution by pressurized between developer roll, develop.
5. the diazo copying spare after developing is accommodated in the copy storage part.In above-mentioned copy occasion in the form of a roll, copy is wound on the coiling roller that the copy receiving portion is provided with in addition (device shows the storage part of packed sheet paper goods among the figure).
6. on the other hand, the developer solution that is used to develop at development section (agent) is not sucked out from gas exhaust duct, arranges in atmosphere.(in the half dry type visualization way, because of developer solution (agent) recycles between development section and developer solution storage container, so, the unnecessary exhaust apparatus such as gas exhaust duct that are provided with).
Below, be described more specifically the present invention with embodiment, but the present invention is not limited to these embodiment.In addition, the following stated part, % all refer to weight.
The support system of using among embodiment 1-6, the comparative example 1-5 with the known method system of copying, contain the paper (neutralized paper) and the acidic paper of alkaline components.
No. 1 neutralized paper: use LBKP100%, paper pH6.5 (extracting pH8.3) calcium carbonate content 1.5%
No. 2 neutralized papers: use the neutralized paper of the recycled writing paper paper pulp that cooperates LBKP30% and the waste paper regenerated paper pulp 70% of simile paper, paper pH6.4 (extracting pH8.5) calcium carbonate content 3.5%
All neutralized papers are all used neutral sizing agent (alkyl ketene dimer) and are carried out 1.0g/m with oxidized starch as the Cypres of major component
2Double treatment.
Acidic paper: the acidic paper that the diazo sensitized paper of use LBKP100% is used, paper pH2.9 (extracting pH4.9)
Embodiment 1
As diazo sensitized paper paper, the diazonium photographic layer liquid of being made up of following component with airblade coating on it forms dry back adhesion amount 0.6g/m with above-mentioned neutralized paper 1
2Photographic layer, make diazo copying material of the present invention.
(photographic layer liquid composition)
4-diazonium-N, 0.5 part of accelerine chloride 1/2 zinc chloride
2,2.0 parts of 3-dihydroxy naphthlenes-6-sodium sulfonate
1.5 parts of citric acids
3.0 parts of thiocarbamides
3.0 parts of zinc chloride
2 2.0 parts of three second
0.1 part of saponin
87.5 parts in water
Embodiment 2
To be coated on by the precoated shet liquid that following component is formed on the support as the foregoing description 1 with air knife, forming dry back adhesion amount is 2.0g/m
2Precoated shet.
(precoated shet liquid composition)
3.0 parts of amorphous silica micropowders (particle diameter 1-3 μ)
5.0 parts of styrene-methacrylic acids-acrylic copolymer resin
(3 ℃ of the emulsion MFT of effective constituent 45%)
10.0 parts of oxidized starch (20%) aqueous solution
82.0 parts in water
With same method, the photographic layer liquid of embodiment 1 is coated on this precoated shet, forming dry back adhesion amount is 0.6g/m
2Photographic layer, make diazo copying material of the present invention.
Embodiment 3
With the back coating liquid that air knife is made up of following component in opposite side (side opposite with the photographic layer side) coating of the diazo copying material of embodiment 1, forming dry back adhesion amount is 1.5g/m
2Back coating, make diazo copying material of the present invention.
(back coating liquid composition)
1.5 parts of ethylene glycol
1.5 parts of citric acids
97.0 parts in water
Embodiment 4
To be coated on by the external coating liquid that following component is formed with cylinder applicator roll (シ ョ ト De ェ Le ワ ィ ヤ one バ one) on the photographic layer of diazo copying material of the foregoing description 1, forming dry back adhesion amount is 1.0g/m
2Diazo copying material of the present invention.
(external coating liquid composition)
10.0 parts of cinnamic acrylic ester copolymer resins emulsions
(30 ℃ of the emulsion MFT of effective constituent 45%)
0.5 part of citric acid
89.5 parts in water
Embodiment 5
To be coated on by the precoated shet liquid that following component is formed on the support of neutralized paper 1 with air knife, forming dry back adhesion amount is 1.8g/m
2Precoated shet.
(precoated shet liquid composition)
3.0 parts of amorphous silica micropowders
10.0 parts of polyvinyl alcohol (PVA) (saponification degree 97%, 10% aqueous solution)
5.0 parts of Polyvinylchloride-acrylic copolymer resins
(10 ℃ of effective constituent 40% MFT)
82.0 parts in water
With air knife the diazonium photographic layer liquid of following composition is coated on this precoated shet, forming dry back adhesion amount is 0.8g/m
2Photographic layer,
4-diazonium-N, 0.5 part of N '-xylidin chloride 1/2 zinc chloride
2,1.5 parts of 3-dihydroxy naphthlenes-6-sodium sulfonate
1.5 parts in tartrate
0.5 part of caffeine
1.0 parts of methylols
3.0 parts of thiocarbamides
3.0 parts of zinc chloride
0.1 part of saponin
89.0 parts in water
Secondly, will be coated on the face with the opposition side of above-mentioned photographic layer side by the back coating liquid that following component is formed with air knife, forming dry adhesion amount afterwards is 1.0g/m
2Back coating.Make diazo copying material of the present invention.
(back coating liquid composition)
1.0 parts of ethylene glycol
2.0 parts in tartrate
1.0 parts of aluminium borates
96.0 parts in water
Embodiment 6
Except support adopts neutralized paper 2, adopt similarly to Example 5 coating fluid and manufacture method, make the diazo copying material.
Embodiment 7
To be coated on by the precoated shet liquid that following component is formed on the support of neutralized paper 1 with air knife, forming dry back adhesion amount is 2.0g/m
2Precoated shet.
(precoated shet liquid composition)
2.5 parts of amorphous silica micropowders
2.0 parts of Tissuemat Es (effective constituent 30%)
10.0 parts of polyvinyl alcohol (PVA) (saponification degree 89%, 20% aqueous solution)
4.5 parts of polystyrene-acrylic copolymer resins
(8 ℃ of the emulsion MFT of effective constituent 45%)
81.0 parts in water
Secondly, will be coated on the above-mentioned precoated shet by the photographic layer liquid that following component is formed, forming dry back adhesion amount is 0.7g/m
2Photographic layer.
(photographic layer liquid composition)
4-diazonium-2,1.0 parts of 5-dipropoxy phenylmorpholine chloride 1/2 zinc chloride
1.0 parts of 2-hydroxyls-3-benzoic acid morpholino propyl amides
Malic acid 1.0
1.5 parts of ureas
1.5 parts in zinc sulfate
1.0 parts of ethylene glycol
1.0 parts of caffeines
0.1 part of saponin
92 parts in water
To be coated the opposite one side of the above-mentioned photographic layer of handling through precoated shet by the back coating liquid that following component is formed with air knife, forming dry back adhesion amount is 0.9g/m
2Back coating.Make diazo copying material of the present invention.
(back coating liquid composition)
1.0 parts of ethylene glycol
1.0 parts of zinc chloride
2.0 parts of boric acid
96.0 parts in water
Embodiment 8
Except support adopts neutralized paper 2, adopt similarly to Example 7 coating fluid and manufacture method, make the diazo copying material.
Comparative example 1
Removed the neutralized paper of oxidized starch except the support with embodiment 1 makes in the Cypres of neutralized paper 1, coating fluid and manufacture method that other adopt similarly to Example 1 make the diazo copying material.
Comparative example 2
Except the support of embodiment 1 being used instead employed in the past diazo sensitized paper with the body paper (acidic paper), other adopt coating fluid similarly to Example 1 to form and manufacture method, make the diazo copying material.
Comparative example 3
Except embodiment 2 precoated shet liquid being formed the precoated shet liquid of using following component composition instead, other adopt similarly to Example 2 support, coating fluid to form and manufacture method, make the diazo copying material.
(precoated shet liquid composition)
3.0 parts of amorphous silica micropowders (particle diameter 0.1-0.5 μ)
10.0 parts of polystyrene resins
(75 ℃ of the emulsion MFT of effective constituent 45%)
87.0 parts in water
Comparative example 4
Except removing the citric acid from the back coating liquid of embodiment 3, other adopt similarly to Example 3 support, coating fluid to form and manufacture method, make the diazo copying material.
Comparative example 5
Outside the external coating (that is, be not coated with, be provided with) of removing embodiment 4, other adopt similarly to Example 4 support, coating fluid to form and manufacture method, make the diazo copying material.
Comparative example 6
Except removing boric acid, the aluminium sulphate from the back coating liquid of embodiment 5, other adopt similarly to Example 5 support, coating fluid to form and manufacture method, make the diazo copying material.
Comparative example 7
Except the precoated shet liquid composition material with embodiment 7 makes the following changes, and from back coating, remove zinc chloride, outside the boric acid, other adopt coating fluid similarly to Example 7 to form and manufacture method, make the diazo copying material.
(precoated shet liquid composition)
Tissuemat E is removed
Polyvinyl alcohol (PVA) changes gelatin into, and polystyrene-acryl resin changes polystyrene-vinyl cyanide-acrylic copolymer resin (53 ℃ of 45% MFT) into
Original copy is stacked and placed on the above-mentioned diazo copying material that makes,, obtains blue image with diazo duplicator exposure, development.(the SM-1500 type that embodiment 1-6 and comparative example 1-6 make with company of Ricoh.The SD-1730 type that embodiment 7,8 and comparative example 7 companies of usefulness Ricoh make.)
Measure the image color that makes with reflection of the concentration (Macbeth densimeter RD-914 type), estimate.
Again,, each sample is cut into A-4 version sheet paper size for testing its memory property, stacked 50 pieces, with after having the blister-pack of moisture resistance, place 50 ℃ calibration cell, placed 5, make it force deterioration.Then, take out and on above-mentioned duplicating machine, do blanket exposure, development, measure the concentration of non-image part (basal part) with described reflection of the concentration.
Have again, at the recycling of the sample of embodiment 1 and comparative example 1,2, the develop disassociation of wastepaper as raw material of sample of back (duplicating the back) of investigation.Test method is, pulper (under the 3300rpm rotating speed, stirring) with capacity 2L, be 5% at sample solution concentration, disperse under the condition of 40 ℃ of caustic sodas 0.3%, water temperature, judge sample disassociation state (if can dissociate, then as the use of wastepaper as raw material reprocessing cycle).
More than the results are shown in table 1.
Table 1
| Pilot project | ||||
| Color development concentration | Memory property | Recycle performance | ||
| Image portion | Basal part | Base concentration after (50 ℃, 5 days) pressure deterioration | (duplicating the dissociation properties of back sensitized paper) | |
| Embodiment 1 | 1.27 | 0.07 | 0.21(+0.14) | Test beginning disassociation in back 10 minutes |
| Embodiment 2 | 1.40 | 0.07 | 0.14(+0.07) | - |
| Embodiment 3 | 1.27 | 0.07 | 0.14(+0.07) | - |
| Embodiment 4 | 1.24 | 0.07 | 0.17(+0.10) | - |
| Embodiment 5 | 1.42 | 0.07 | 0.11(+0.04) | - |
| Embodiment 6 | 1.41 | 0.07 | 0.12(+0.05) | - |
| Embodiment 7 | 1.12 | 0.08 | 0.13(+0.05) | |
| Embodiment 8 | 1.11 | 0.08 | 0.14(+0.06) | |
| Comparative example 1 | 1.25 | 0.07 | 0.14(+0.07) | Test beginning disassociation in back 10 minutes |
| Comparative example 2 | 1.25 | 0.07 | 0.14(+0.07) | The test beginning did not dissociate in back 1 hour |
| Comparative example 3 | 1.27 | 0.07 | 0.22(+0.15) | - |
| Comparative example 4 | 1.27 | 0.07 | 0.22(+0.15) | - |
| Comparative example 5 | 1.27 | 0.08 | 0.26(+0.18) | - |
| Comparative example 6 | 1.41 | 0.08 | 0.21(+0.13) | - |
| Comparative example 7 | 1.09 | 0.08 | 0.22(+0.16) | |
As mentioned above, but the paper that use contains alkaline components as the diazo copying material of support also nationality by keeping the alkali blocking function on the one deck at least in precoated shet, the back coating, the diazo copying material of the memory property (that is seldom pre-coupling reaction) with excellence is provided by this.
Certainly, the present invention is not limited to the foregoing description, can do all changes in the technology of the present invention thought range, and they all belong to protection scope of the present invention.
Claims (21)
1. diazo copying material, it is characterized in that, described diazo copying material has used the paper that contains alkaline components as support, described paper carries out surface treatment through polyvinyl alcohol (PVA) and/or solubility modified starch, described diazo copying material is that the photographic layer of major component is formed by this support with diazo-compounds and coupling composition at least, and contain the materials with function one alkali blocking agent with the described alkaline components of obstruction, described alkali blocking agent comprises blocking layer and/or is selected from the acidic materials in the material shown in following (1) and (2):
(1) have water-soluble and nonvolatile organic acid and mineral acid,
(2) have the sulfate and the chloride of water-soluble and nonvolatile alkaline metal, earth alkali metal and aluminium.
2. diazo copying material as claimed in claim 1 is characterized in that, is provided with precoated shet between support and photographic layer.
3. diazo copying material as claimed in claim 1 is characterized in that, is provided with back coating at the opposite side opposite with photographic layer one side of support.
4. as claim 2 or 3 described diazo copying materials, it is characterized in that, in precoated shet and/or back coating, contain the alkali blocking agent.
5. diazo copying material as claimed in claim 1 or 2 is characterized in that, contains the alkali blocking agent in photographic layer.
6. diazo copying material as claimed in claim 1 or 2 is characterized in that, is provided with the external coating that contains the alkali blocking agent on photographic layer.
7. diazo copying material as claimed in claim 1 or 2 is characterized in that, blocking layer is at least a in hydrophobic resin or the hydrophilic resin.
8. diazo copying material as claimed in claim 3 is characterized in that described acidic materials are contained in the back coating.
9. diazo copying material as claimed in claim 7 is characterized in that, at least a being contained in the precoated shet in described hydrophobic resin or the hydrophilic resin.
10. diazo copying material as claimed in claim 7 is characterized in that, at least a film-forming temperature in described hydrophobic resin or the hydrophilic resin is-5～50 ℃.
11. diazo copying material as claimed in claim 7 is characterized in that, described hydrophilic resin is polyvinyl alcohol (PVA) and/or soluble starch.
12. diazo copying material as claimed in claim 7, it is characterized in that described hydrophobic resin is to be selected from least a in polyvinyl acetate resin, polystyrene-poly acrylic copolymeric resin, polystyrene-poly methacrylate-polyacrylate copolymer resins, the Polyvinylchloride-polyacrylic acid copolymerized resin.
13. diazo copying material as claimed in claim 8 is characterized in that, the acid of back coating is boric acid.
14. diazo copying material as claimed in claim 1 or 2 is characterized in that, described diazo copying material is a support with the paper that contains the waste paper regenerated paper pulp more than 50%.
15. diazo copying material as claimed in claim 1 or 2 is characterized in that, described diazo copying material is that the paper of alkaline components is support with the lime carbonate that contains 0.5-20%.
16. drum goods, described drum goods are wound with each the described diazo copying material among the claim 1-15.
17. the bag shape goods of a diazo copying material, described bag shape goods are that each the described diazo copying material among the claim 1-15 is cut into certain size, and are a plurality of overlapping, are built in the satchel.
18. a diazo copying method is characterized in that, original copy is placed on each described diazo copying material of claim 1-15 to expose, and then, develops under alkali condition.
19. a diazo copying image processing system is characterized in that described device has exposure portion and development section, and places drum goods as claimed in claim 16 and form.
20. a diazo copying image processing system is characterized in that described device has exposure portion and development section, and the bag shape goods of placing diazo copying material as claimed in claim 17 form.
21. diazo copying material support paper, it is characterized in that, described paper carries out surface treatment through polyvinyl alcohol (PVA) and/or solubility modified starch, and described paper by the alkali blocking agent inaccessible in advance alkaline components, described alkali blocking agent comprises blocking layer and/or is selected from the acidic materials in the material shown in following (1) and (2):
(1) have water-soluble and nonvolatile organic acid and mineral acid,
(2) have the sulfate and the chloride of water-soluble and nonvolatile alkaline metal, earth alkali metal and aluminium.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
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| JP187110/2000 | 2000-06-22 | ||
| JP2000187110 | 2000-06-22 |
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| CN101639622B (en) * | 2009-04-22 | 2011-08-17 | 珠海开元纸业有限公司 | Method for producing thin photosensory blueprint paper |
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