CN102935768B

CN102935768B - Chinese ink painting intaglio printing method

Info

Publication number: CN102935768B
Application number: CN201210476769.1A
Authority: CN
Inventors: 袁建穗
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-11-21
Filing date: 2012-11-21
Publication date: 2015-07-08
Anticipated expiration: 2032-11-21
Also published as: CN102935768A

Abstract

The invention provides a Chinese ink painting intaglio printing method, wherein pure water is served as a solvent, and a shallow edition printing is utilized so that the printing is conducted in an environment-friendly manner, and the production cost is also reduced; and the viscosity of Chinese ink painting is low and an intaglio printing groove is shallow so that the printing speed is increased and the whole printing process is simple and environment-friendly.

Description

A kind of gravure process of ink

Technical field

The present invention relates to printing art area, refer to a kind of gravure process of ink especially.

Background technology

What traditional intaglio printing adopted is ink, because ink is with an organic solvent as diluent, have inflammable and explosive, highly polluted environment and have a strong impact on food security, along with countries in the world are to the attention of environmental protection and food security, environmental protection printing has become the trend of ink development, in the patent of " a kind of ink for flexible package intaglio printing and preparation technology thereof " (patent No.: ZL201110165900.8), disclose a kind of ink and preparation technology thereof of intaglio printing, this ink uses pure water as diluent, and the optimization of other components, there is environment-friendly advantage etc., owing to being a kind of brand-new ink, it naturally can exist many different from traditional ink technique for applying in the technical process of application, if be ignorant of difference wherein, then be difficult to give full play to and utilize ink.

In existing printing ink intaglio printing, what adopt is directly joined in black groove with solvent by ink to mix, and because organic solvent has strong volatility and toxicity, has very large harm to staff, simultaneously ink printing adopts that version is dark prints for 35u ~ 50u " dark version " substantially, ink consumption amount is large, and viscosity is also relatively large, makes one side cost higher, simultaneously because viscosity is large, cause print speed printing speed limited, generally within 200m/min, promote difficulty.

Summary of the invention

The present invention proposes a kind of gravure process of ink, fully discloses technological process and the feature of gravure ink, making staff can reach best effect when using gravure ink printing, also promoting the development of environmental protection printing simultaneously.

Technical scheme of the present invention is achieved in that a kind of gravure process of ink, it is characterized in that, comprises the following steps:

(1) ink viscosity allotment: mixed in a reservoir with water by ink and stir evenly, the volume adding water is 1% ~ 15% of ink volume, obtains the ink that viscosity is 8 ~ 18 seconds wiping grace cup/No. 3;

(2) forme pretreatment: deployed ink is joined in ink groove, and allow gravure cylinder forme dally in ink groove, carry out damping, stir, the version of forme is dark is 15u ~ 30u;

(3) adjustment rule: last item is pressed on forme, put down scraper, make stock between forme and last item;

(4) formally print: forme is by ink print on stock, and print speed printing speed is set to 70m/min ~ 250m/min, dry stock for 40 DEG C subsequently ~ 80 DEG C;

Further, in step (1), the ratio adding volume water during ink viscosity is regulated to be 1% ~ 5% of ink volume, grace cup/No. 3 are wiped in adjustment viscosity to 8 ~ 12 second, viscosity can affect the speed of printing, when other conditions are constant, viscosity is larger, print speed printing speed is slower, and the scope of viscosity adjustment should according to print speed printing speed and version be dark decides, when print speed printing speed is at 150-250m/min, viscosity is wipe grace cup/No. 3 in 8 ~ 12 seconds, if when print speed printing speed is 70-150m/min, viscosity is wipe grace cup/No. 3 in 10 ~ 18 seconds.

Further, the version of forme described in step (2) is dark is 15u ~ 28u, high and the ink oneself of colour saturation due to ink specifically volatilizees condition, so " the shallow version " of the version dark employing 15u ~ 30u of ink printing, " the shallow version " of 15u ~ 28u is particularly adopted to print, when printing, version is dark more shallow, the ink amount consumed is fewer, cost is lower, simultaneously, the dark impact for print speed printing speed of version is very large, when other conditions are constant, version is dark more shallow, , print speed printing speed is faster, and, in ink printing, if version is dark too dark, more than 35u, easy generation water ripple phenomenon, reduce press quality, therefore, " shallow version " printing that we adopt, the version adopted compared to traditional printing is dark is " dark version " forme of 35u-50u, reduce cost on the one hand, also the print speed printing speed improved on the other hand.

Further, in step (2), the pretreatment of forme is rotated 2 ~ 60 minutes in ink groove by forme, this step serves the effect of wetting forme on the one hand, play the effect of stirring ink on the other hand, due to graphite dry after can not redissolve, so keep forme to rotate all the time in whole printing process as far as possible.

Further, in step (4), if stock is plastics stock, then plastics stock is carried out sided corona treatment, make the surface tension of plastics stock at 40 ~ 50 dyne/cm, what guarantee ink can be stronger is attached on plastics stock.

Further, after step (4), (5) post-processed also in steps: comprise and remaining ink is carried out back dress sealing, for printing next time, cleans printing machine, uses clear water.

Beneficial effect of the present invention is: the gravure process that the present invention proposes a kind of ink, by adopting pure water as diluent, asepsis environment-protecting, cost is low, simultaneously, its viscosity is also lower, according to the speed of printing, range of viscosities is wipe grace cup/No. 3 in 8 ~ 18 seconds, printing that the present invention additionally uses " shallow version ", and the depth of groove of forme is 15u-30u, these all fundamentally accelerate the speed of printing, make print speed printing speed can reach 250m/min the soonest, after being completed for printing, the cleaning of printing only needs clear water.

Accompanying drawing explanation

In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.

Fig. 1 is the flow chart of the gravure process of a kind of ink of the present invention.

Detailed description of the invention

For understanding the present invention better; below by three embodiments, elaboration concrete is further done to the present invention; but unintelligible is limitation of the invention; for some nonessential improvement and adjustment that those skilled in the art does according to foregoing invention content, be also considered as dropping in protection scope of the present invention.

Embodiment 1

We adopt the gravure process of a kind of ink proposed by the invention, operate:

(1) in ink bucket, allocate the water of 1% into, stir, the viscosity of ink is made to be wipe grace cup/No. 3 in 16 seconds, then pour in ink groove, then pour in ink groove, forme is operated, sided corona treatment is carried out to plastics stock, here, we have employed the forme that depth of groove scope is 15u-28u;

(2) be loaded between forme and last item by plastics stock, after forme operates 3 minutes, depressed by last item, put down scraper, print speed printing speed is 120m/min;

(3) forme is by ink print on stock, and stock is 60 DEG C of oven dry subsequently, and the equipment of employing is dryer.

(4) after being completed for printing, obtain printed matter 1, reclaimed by ink, sealing, puts into service sink by printing machine and cleans.

Embodiment 2

(1) in ink bucket, allocate the water of 5% into, stir, make the viscosity of ink be wipe grace cup/No. 3 in 12 seconds, then pour in ink groove, forme is operated, use BOPP film (bidirectional stretching polypropylene film) as stock at this, and the depth of groove scope of forme is 18u-30u;

(2) be loaded between forme and last item by plastics stock, after forme operates 2 minutes, depressed by last item, put down scraper, print speed printing speed is 160m/min;

(3) forme is by ink print on stock, and stock is 65 DEG C of oven dry subsequently, and the equipment of employing is dryer.

(4) after being completed for printing, obtain printed matter 2, reclaimed by ink, sealing, puts into service sink by printing machine and cleans.

Embodiment 3

(1) in ink bucket, allocate the water of 10% into, stir, make the viscosity of ink be wipe grace cup/No. 3 in 10 seconds, then pour in ink groove, forme is operated, electric spark process is carried out to plastics stock, here, we have employed the forme that depth of groove scope is 15u-28u;

(2) be loaded between forme and last item by plastics stock, after forme operates 3 minutes, depressed by last item, put down scraper, print speed printing speed is 200m/min;

(3) forme is by ink print on stock, and stock is at 70 DEG C of bake out temperatures subsequently, and the equipment of employing is dryer.

(4) after being completed for printing, obtain printed matter 3, reclaimed by ink, sealing, puts into service sink by printing machine and cleans.

Embodiment 4

(1) in ink bucket, allocate the water of 14% into, stir, make the viscosity of ink be wipe grace cup/No. 3 in 9 seconds, then pour in ink groove, forme is operated, electric spark process is carried out to plastics stock, here, we have employed the forme that depth of groove scope is 15u-28u;

(2) be loaded between forme and last item by plastics stock, after forme operates 4 minutes, depressed by last item, put down scraper, print speed printing speed is 245m/min;

(3) forme is by ink print on stock, and stock is at 80 DEG C of bake out temperatures subsequently, and the equipment of employing is dryer.

(4) after being completed for printing, obtain printed matter 4, reclaimed by ink, sealing, puts into service sink by printing machine and cleans.

According to embodiment 1, the printed matter 1 that embodiment 2 and embodiment 3 obtain, printed matter 2 and printed matter 3, we before printing, mixing of ink and water has been carried out in ink bucket, there is no the volatilization of toxicant, add in ink groove, the version of intaglio plate is dark is " the shallow version " of 18u-30u, compared to " the dark version " of the 25u-50u that conventional printing ink intaglio printing adopts, more cost-saving, be completed for printing rear sampling to detect, the adhesive force of ink and the consistent of ink, here the performance requirement for drying plant is higher, because the thorough dry time of ink can be more longer than ink, it can also be seen that from embodiment 4, the lifting of print speed printing speed, improve the efficiency of printing.

The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims

1. a gravure process for ink, is characterized in that, comprises the following steps:

(1) ink viscosity allotment: mixed with water by ink and stir evenly, the volume adding water is 1% ~ 15% of ink volume, obtains the ink that viscosity is 8 ~ 18 seconds wiping grace cup/No. 3;

(2) forme pretreatment: deployed ink is joined in ink groove, adopt gravure cylinder forme, the version of forme is dark is 15u ~ 30u, allows forme dally in ink groove, carries out damping, stirs;

(4) formally print: forme is by ink print on stock, and print speed printing speed is set to 70m/min ~ 250m/min, dry stock for 40 DEG C subsequently ~ 80 DEG C.

2. the gravure process of ink as described in claim 1, is characterized in that: the volume adding water in step (1) is 1% ~ 5% of ink volume, and described viscosity is wipe grace cup/No. 3 in 8 ~ 12 seconds.

3. the gravure process of ink as described in claim 1, is characterized in that: the version of forme described in step (2) is dark is 15u ~ 28u.

4. the gravure process of ink as described in claim 1, is characterized in that: the duration that in step (2), forme dallies in ink groove is 2 ~ 60 minutes.

5. the gravure process of ink as described in claim 1, is characterized in that: in step (4), if described stock is plastics stock, then plastics stock is carried out sided corona treatment, make the surface tension of plastics stock at 40 ~ 50 dyne/cm.

6. the gravure process of ink as described in claim 1, is characterized in that: after step (4), also in steps (5) post-processed: comprise and remaining ink is carried out back dress sealing, cleaned by printing machine.