CN102591141A - Method for preparing bottom die for flexible resin plates - Google Patents
Method for preparing bottom die for flexible resin plates Download PDFInfo
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- CN102591141A CN102591141A CN2012100371604A CN201210037160A CN102591141A CN 102591141 A CN102591141 A CN 102591141A CN 2012100371604 A CN2012100371604 A CN 2012100371604A CN 201210037160 A CN201210037160 A CN 201210037160A CN 102591141 A CN102591141 A CN 102591141A
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Abstract
The invention discloses a method for preparing a bottom die for flexible resin plates, which comprises the following the step of: exposure, namely, providing a film and a flexible resin plate, reversely placing the flexible resin plate above the film, and carrying out exposure on the flexible resin plate for 360-400 seconds by using an iodine gallium lamp with power of 3000W; development, namely, flushing the surface of the flexible resin plate subjected to exposure by using water at a temperature of 30-35 DEG C under the pressure of 5-28MPA, wherein the flushing time is controlled within 12-15 minutes, and a part (0.2-0.3 mm) of a resin layer base is kept on the whole surface of the flexible resin plate; drying, namely, putting the plate subjected to development into a drying oven to bake for 4-5 hours at a temperature of 50-60 DEG C; and post-exposure, namely, after the plate is completely dried, putting the plate without being covered with any object under an iodine gallium lamp with power of 8000W for 130-150 seconds, then carrying out fast cooling on the plate for 2-3 minutes in a refrigerating drying tunnel. The method disclosed by the invention has the advantages that the plate is low in cost, environment-friendly in manufacturing process, and high in print resistance rate.
Description
Technical field
The present invention relates to a kind of preparation method of flexible resin version bed die.
Background technology
The Along with people's growth in the living standard, increasingly high to the appearance requirement of article packing, especially the tobacco and wine packing all need design fineness, print beautiful packing box, improves the class of product with this, increases the attractive force and the reputation of product.Extruding concavo-convex picture and text in the paperboard surface of tobacco and wine packings is exactly a kind of design means preferably, can strengthen the stereoscopic sensation of packing box picture and text, can effectively improve the refraction effect of light simultaneously, gives the sensation of a kind of top grade of people, atmosphere.And suppress concavo-convex picture and text in the paperboard surface of tobacco and wine packing box, generally to adopt a pair of concavo-convex mould (having comprised relief printing plate and bed die).The papery package presses protruding technology and generally adopts gypsum bed die, conventional resins bed die and copper bed die etc. on the market.
Domestic is the concavo-convex mould of gypsum than what suppress the general employing of concavo-convex picture and text as far back as the paperboard surface of tobacco and wine packing box; The concavo-convex mould of gypsum of the prior art; Great majority all are to mix the back with gypsum and water to make moulding; On machine, make concavo-convex bed die, can use through oven dry, access times can only reach 30,000 impressions.With the concavo-convex mould of gypsum that this material is processed, exist the problem of anti-wear performance difference, the phenomenon that also has cracking takes place.
One Chinese patent application " (the concavo-convex mould of a kind of reinforced gypsum) " (number of patent application: proposed the concavo-convex mould of a kind of reinforced gypsum 201110076854.4) for example; Raw material by following weight portion makes: gesso 80-100 part; Water 60-100 part, white glue with vinyl 3-5 part; Earlier water and white glue with vinyl are mixed, mix back preparation moulding with gesso then, again through oven dry.Because latex has stronger cohesive force, therefore, the anti-wear performance and the serviceable life of the concavo-convex mould of processing of gypsum are greatly enhanced, and through using proof, the concavo-convex mould of the gypsum after the improvement can use 70,000 impressions.
Use the concavo-convex bed die of gypsum, its advantage is that cost is low, and shortcoming is a long processing time, changes complicacy, owing to can unavoidably follow the generation of wear phenomenon in the gypsum use, so the picture and text surface is prone to dirty point.For the concavo-convex mould of the reinforced gypsum of above-mentioned improvement, starting material are had relatively high expectations, need select gesso and glue preferably, can effectively evade the dirty point in picture and text surfaces to a certain extent, still, the generation of mass defect such as easy to wear, frangible is still comparatively frequent.
Along with the development of technology, the conventional resins bed die has obtained widespread use.Can adopt glass fiber material to do base material; The well behaved chemicals of configuration moulding; Make and a consistent master mold of relief printing plate,, chemicals is transferred to the fiberglass substrate surface by master mold through certain temperature; Formation waits to press protruding shape, and this bossing anti-wear performance and serviceable life are good.Can and play the hole that relief printing plate matches in the making of fiberglass substrate surface, can conveniently locate usefulness.Because master mold can adopt electricity carving mould, moulding is meticulous, and the conventional resins bed die of therefore making can be used for the protruding technology of indentation of meticulous lines effect or the protruding technology of indentation of imitative anaglyph is arranged, and molding effect is good.But conventional resins bed die cost is higher, for the printing enterprise that market competition is growing more intense, profit is meagre day by day, is a high cost; And the conventional resins bed die is exquisite and complete inadequately for meticulous stroke blistering, and for the situation that has the lines fracture than the fine portion blistering sometimes, and press resistance rate is not high.
The copper bed die has also obtained extensive employing in the protruding technology of indentation.Existing two kinds of plates in the actual use corrode concavo-convex copper bed die and the concavo-convex copper bed die of electricity carving.
The process characteristic that corrodes concavo-convex copper bed die is that made plate is gone out by the liquid medicine corrosion, and the picture and text degree of depth is consistent, and profile is not obvious, and stereovision is relatively poor, and type page is crude shape.Product rat height after it is concavo-convex is consistent, level of approximation.But the development of copperplate will be used hydrochloric acid etc., contaminated environment.
And the concavo-convex copper bed die of electricity carving is that present mask-making technology is best, and program is set by computer, and omnidistance the engraving by electricity carving machine forms; Made plate three-dimensional contouring, type page is accomplished the inclined-plane, and product is inconsistent by its concavo-convex back rat height; High and low layered approaching with states picture and text itself, particularly on the top grade packing, use, it is suitable to handle like the depth; Stereoscopic sensation is strong, the needs of favourable visual effect and psychology appreciation.But present electric engraving cost of manufacture is higher, example: the concavo-convex copper bed die 20cm of electricity carving
2, with 17 yuan/cm
2Calculate, 17X 20=340 unit adds its supporting electricity again and carves 38 yuan/sheet of concavo-convex copperplate, and a complete cover plate expense is 378 yuan, and same picture and text are done etched plate, and a copy fee only needs 46.8 yuan.Although the concavo-convex copper bed die of electricity carving is effective but cost an arm and a leg, cost is just high, and is particularly very short and measure few undersupplied products for some durations, in cost accounting, just accounts for very big inferior position.
Summary of the invention
The present invention provides a kind of preparation method of flexible resin version bed die; Its plate cost is lower, the mask-making technology environmental protection, and press resistance rate is higher; Be suitable for the protruding technology of indentation of meticulous lines effect especially or the protruding technology of indentation of imitative anaglyph is arranged; And existing conventional plate-making in general printing house capable of using and printing equipment, and do not need the extra special platemaking equipment of purchasing, but generalization is stronger.
A kind of preparation method of flexible resin version bed die comprises the steps:
Make public-provide film sheet and flexible resin version; With the anti-top that is positioned over said film sheet of said flexible resin version; Make the medicine face of said film sheet be close to the photosensitive resin medicine face of said flexible resin version, place then on the glass plate of silk screen printer, floating with soft cloth so that intermembranous gas is discharged; Carry out the face exposure of plate then, wherein exposure uses the Iodine gallium light of 3000W to make public 360～400 seconds;
Develop-with the water of temperature at 30-35 ℃, under the pressure of 5-28MPa, rush at the surface of the said flexible resin version of having made public, flush time was controlled at 12-15 minute, kept the resin bed base of 0.2-0.3mm on the whole surface of flexible resin version;
Dry-plate after will developing is inserted in 50 ℃～60 ℃ drying boxes and was toasted 4～5 hours;
Post-exposure-dried plate the vacuum that places the silk screen printer that faces up is inhaled on the horse; Not covering anything uses power to make public 130～150 seconds as the Iodine gallium light of 8000W; Second, said flexible resin version bed die was promptly processed in extremely fast cooling in 2～3 minutes in the refrigeration drying tunnel then.
Preparation method of the present invention uses the Iodine gallium light exposure 360～400 seconds of 3000W in exposure process, can improve the pliability and the intensity of resin plate bed die through the selection of exposure intensity and time, improves press resistance rate; In development step, make water as developer; Convenience and environmental protection; The resin bed base that keeps 0.2-0.3mm through the control flush time on the whole surface of flexible resin version; Be equivalent on the resin plate bed die, apply layer protecting film, for prior art is fallen whole resin bed base complete flushing, can strengthen the press resistance rate of resin plate bed die; Make flexible resin version bed die have unified, uniform characteristic through post-exposure, and further solidify flexographic plate resin bed die, its press resistance rate is further promoted.
The resin plate bed die that uses preparation method of the present invention to process, press resistance rate is high, and the process evidence: stroke is not less than 500,000 seals greater than the pattern of 2mm, and stroke is not less than 100,000 seals less than the pattern of 0.5mm; Can reduce production costs copperplate bed die low price commonly used, about 1/10 cost that only accounts for the copperplate bed die; In the developing process of resin bed die, make water, compare the existing more environmental protection such as surfactant, alcohol, organic solvent of using; Be suitable for the protruding technology of indentation of meticulous lines effect especially or the protruding technology of indentation of imitative anaglyph is arranged.
Embodiment
The preparation method of flexible resin version bed die of the present invention comprises the steps:
Steps A: film sheet that makes public-provide (being anti-cloudy sheet) and flexible resin version; With the anti-top that is positioned over said film sheet of said flexible resin version; Make the medicine face of said film sheet be close to the photosensitive resin medicine face of said flexible resin version, place then on the glass plate of silk screen printer, floating with soft cloth so that intermembranous gas is discharged; Adjust the parameter of silk screen printer then, confirm to carry out after suitable time of bleeding and time shutter the face exposure of plate.Concrete, bleed that it is smooth to accomplish to make as far as possible between glass plate, film sheet and the flexible resin version, no air existence.Wherein exposure uses power to make public 360～400 seconds as the Iodine gallium light of 3000W, has lacked that then the flexible resin version is too soft the time shutter, insufficient strength; And the time has been grown and has had fragility, fracture easily in the protruding technology of indentation, and present embodiment can improve the pliability and the intensity of resin plate bed die through the selection of exposure intensity and time, improves press resistance rate.
Step B: develop-, under the pressure of 5-28MPa, rush at the surface of the said flexible resin version of having made public,, make the picture and text any surface finish to remove uncured compound residual on the space of a whole page (being unpolymerized forme part) with the water of temperature at 30-35 ℃.The control flush time can not be rinsed base fully, and preferable, flush time was controlled at 12-15 minute, keeps the resin bed base of 0.2-0.3mm on the whole surface of flexible resin version.Because development step keeps the resin bed base of 0.2-0.3mm on the whole surface of flexible resin version; Be equivalent to apply layer protecting film on the whole surface of flexible resin version; Meticulous lines for picture and text can carry out better protect in the protruding technology of indentation like this, further improve press resistance rate.
Step C: dry-plate after will developing carries out hyperthermia drying.Can adopt heated-air drying, for example insert in the drying box dry 4～5 hours, temperature is controlled at 50 ℃～60 ℃, prevents the too high generation anamorphose of temperature, and this dry process mainly is that the water that infiltrates the embossed layer part is evaporated in dry run.After the drying, the flexible resin version needs at room temperature air-dry about 12～15 hours, makes it return to the just size when being untreated plate fully in drying box.
Step D: after the abundant drying of post-exposure-plate, place and carry out post-exposure on the screen process press, make polymkeric substance full cross-linked, to improve the pressrun of forme.Concrete; The dried plate vacuum that places the silk screen printer that faces up is inhaled on the horse; Not covering anything uses power as under the Iodine gallium light of 8000W the space of a whole page being carried out blanket exposure; The time of post-exposure is about 130～150 seconds, and said flexible resin version bed die was promptly processed in extremely fast cooling in 2～3 minutes in the refrigeration drying tunnel then.Type (hachure, point etc. on the spot) according to image; Exposure in steps A on the silk screen printer will more or less have influence on forme; Extent of polymerization between the embossed layer each several part will be different as a result; And the post-exposure of this step will make these partial cross-linked, makes forme have unified, uniform characteristic.
The above; Be merely embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technician who belongs to the present technique field is in the technical scope that the present invention discloses; The variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.
Claims (2)
1. the preparation method of a flexible resin version bed die is characterized in that: comprise the steps:
Make public-provide film sheet and flexible resin version; With the anti-top that is positioned over said film sheet of said flexible resin version; Make the medicine face of said film sheet be close to the photosensitive resin medicine face of said flexible resin version, place then on the glass plate of silk screen printer, floating with soft cloth so that intermembranous gas is discharged; Carry out the face exposure of plate then, wherein exposure uses power to make public 360～400 seconds as the Iodine gallium light of 3000W;
Develop-with the water of temperature at 30-35 ℃, under the pressure of 5-28MPa, rush at the surface of the said flexible resin version of having made public, flush time was controlled at 12-15 minute, kept the resin bed base of 0.2-0.3mm on the whole surface of flexible resin version;
Dry-plate after will developing is inserted in 50 ℃～60 ℃ drying boxes and was toasted 4～5 hours;
Post-exposure-dried plate the vacuum that places the silk screen printer that faces up is inhaled on the horse; Do not cover anything and use power to make public 130～150 seconds as the Iodine gallium light of 8000W, said flexible resin version bed die was promptly processed in extremely fast cooling in 2～3 minutes in the refrigeration drying tunnel then.
2. the preparation method of flexible resin version bed die as claimed in claim 1 is characterized in that: in drying box after the drying, and at room temperature air-dry 12～15 hours of flexible resin version.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210037160.4A CN102591141B (en) | 2012-02-20 | 2012-02-20 | Method for preparing bottom die for flexible resin plates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210037160.4A CN102591141B (en) | 2012-02-20 | 2012-02-20 | Method for preparing bottom die for flexible resin plates |
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| CN102591141A true CN102591141A (en) | 2012-07-18 |
| CN102591141B CN102591141B (en) | 2014-03-12 |
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| CN201210037160.4A Active CN102591141B (en) | 2012-02-20 | 2012-02-20 | Method for preparing bottom die for flexible resin plates |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108196424A (en) * | 2017-12-28 | 2018-06-22 | 江苏乐彩印刷材料有限公司 | A kind of mask-making technology of solid photopolymer plate |
| CN108673795A (en) * | 2018-06-16 | 2018-10-19 | 东莞市东昊新能源实业有限公司 | A kind of mold production technology transferring and imprint processing micro-nano texture using UV |
| CN108998780A (en) * | 2018-08-10 | 2018-12-14 | 浙江亚欣包装材料有限公司 | A kind of new packaging material processing technology |
| CN110239243A (en) * | 2019-07-12 | 2019-09-17 | 四川金时科技股份有限公司 | A kind of production technology of photoetching glass duplicate film image |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108724546A (en) * | 2018-06-21 | 2018-11-02 | 苏州工业园区建维薄膜开关厂 | A kind of preparation method of resin plate mold for belling |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108196424A (en) * | 2017-12-28 | 2018-06-22 | 江苏乐彩印刷材料有限公司 | A kind of mask-making technology of solid photopolymer plate |
| CN108673795A (en) * | 2018-06-16 | 2018-10-19 | 东莞市东昊新能源实业有限公司 | A kind of mold production technology transferring and imprint processing micro-nano texture using UV |
| CN108998780A (en) * | 2018-08-10 | 2018-12-14 | 浙江亚欣包装材料有限公司 | A kind of new packaging material processing technology |
| CN108998780B (en) * | 2018-08-10 | 2024-02-13 | 浙江亚欣包装材料有限公司 | Packaging material processing technology |
| CN110239243A (en) * | 2019-07-12 | 2019-09-17 | 四川金时科技股份有限公司 | A kind of production technology of photoetching glass duplicate film image |
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| CN102591141B (en) | 2014-03-12 |
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