CN102935768A

CN102935768A - Chinese ink painting intaglio printing method

Info

Publication number: CN102935768A
Application number: CN2012104767691A
Authority: CN
Inventors: 袁建穗
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-11-21
Filing date: 2012-11-21
Publication date: 2013-02-20
Anticipated expiration: 2032-11-21
Also published as: CN102935768B

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 especially a kind of gravure process of ink.

Background technology

What traditional intaglio printing was adopted is printing ink; because printing 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 the attention of countries in the world to environmental protection and food security; the environmental protection printing has become the trend of printing ink development; in " a kind of ink and preparation technology thereof for the flexible package the intaglio printing " (patent No.: patent ZL201110165900.8); a kind of ink and preparation technology thereof of intaglio printing are disclosed; this ink uses pure water as diluent; and the optimization of other components; have environment-friendly advantage etc., owing to be a kind of brand-new ink, it can exist many different from traditional printing ink technique for applying in the technical process of using naturally; 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 printing ink directly to be joined in the black groove with solvent mix, because organic solvent has strong volatility and toxicity, the staff is had very large harm, ink printing adopts the dark 35u ~ 50u of being of version " dark version " to print substantially simultaneously, the ink consumption amount is large, and viscosity is also relatively large, so that cost is higher on the one hand, simultaneously because viscosity is large, cause print speed printing speed limited, generally in 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 characteristics of gravure ink, makes the staff can reach best effect when using the gravure ink printing, also promotes 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, may further comprise the steps:

(1) ink viscosity allotment: ink mixed stirring evenly in container with water, the volume that adds entry is 1% ~ 15% of ink volume, obtains viscosity and be the ink of 8 ~ 18 seconds wiping grace cups/No. 3;

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

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

(4) formal printing: forme prints ink to stock, and print speed printing speed is made as 70m/min ~ 250m/min, 40 ℃ subsequently ~ 80 ℃ oven dry stocks;

Further, in the step (1), the ratio that adds volume water when regulating ink viscosity is 1% ~ 5% of ink volume, adjustment viscosity to 8 ~ 12 second wiping grace cup/No. 3, 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 be according to print speed printing speed and dark the deciding of version, and when print speed printing speed during at 150-250m/min, viscosity is to wipe grace cup/No. 3 in 8 ~ 12 seconds, when if print speed printing speed is 70-150m/min, viscosity is to wipe grace cup/No. 3 in 10 ~ 18 seconds.

Further, the version of forme described in the step (2) is dark to be 15u ~ 28u, because the specific volatilization condition of the colour saturation height of ink and ink oneself, so " the shallow version " of the dark employing of the version 15u ~ 30u of ink printing particularly adopts 15u ~ 28u " shallow version " to print, when printing, version is dark more shallow, the ink amount that consumes is just fewer, and cost is just lower, simultaneously, the dark impact for print speed printing speed of version is very large, when other conditions were constant, version was dark more shallow, print speed printing speed is faster, and, in the ink printing, if version is dark too dark, surpass 35u, produce easily water ripple phenomenon, reduce press quality, therefore, " shallow version " printing that we adopt, the version that adopts than traditional printing is dark be " dark version " forme of 35u-50u, has reduced on the one hand cost, on the other hand the also print speed printing speed of raising.

Further, in the step (2), the preliminary treatment of forme is for to rotate forme 2 ~ 60 minutes in the ink groove, this step 1 aspect has played the effect of wetting forme, play on the other hand the effect of stirring ink, owing to can not redissolve after graphite is dry, keep forme in whole printing process, to rotate all the time as far as possible.

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

Further, in step (4) afterwards, (5) post-processed also in steps: comprise remaining ink is returned the dress sealing that for printing next time, with the printing machine cleaning, the use clear water gets final product.

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, speed according to printing, range of viscosities is to wipe grace cup/No. 3 in 8 ~ 18 seconds, and the present invention has also adopted " shallow version " printing, and the depth of groove of forme is 15u-30u, these have all fundamentally accelerated 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 to get final product.

Description of drawings

In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.

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

The specific embodiment

For understanding better the present invention; below by three embodiment the present invention is done further concrete elaboration; but unintelligible is limitation of the invention; some nonessential improvement and adjustment for those skilled in the art does according to the foregoing invention content also are 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 the ink bucket, allocates 1% water into, stir, the viscosity that makes ink is to wipe grace cup/No. 3 in 16 seconds, then pour in the ink groove, then pour in the ink groove, with the forme running, the plastics stock is carried out sided corona treatment, here, we to have adopted the depth of groove scope be the forme of 15u-28u;

(2) the plastics stock is written between forme and the last item, the forme running after 3 minutes is depressed last item, puts down scraper, and print speed printing speed is 120m/min;

(3) forme prints ink to stock, and stock is 60 ℃ of oven dry subsequently, and the equipment of employing is dryer.

(4) be completed for printing after, obtain printed matter 1, ink is reclaimed, sealing is put into service sink with printing machine and is cleaned.

Embodiment 2

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

(2) the plastics stock is written between forme and the last item, the forme running after 2 minutes is depressed last item, puts down scraper, and print speed printing speed is 160m/min;

(3) forme prints ink to stock, and stock is 65 ℃ of oven dry subsequently, and the equipment of employing is dryer.

(4) be completed for printing after, obtain printed matter 2, ink is reclaimed, sealing is put into service sink with printing machine and is cleaned.

Embodiment 3

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

(2) the plastics stock is written between forme and the last item, the forme running after 3 minutes is depressed last item, puts down scraper, and print speed printing speed is 200m/min;

(3) forme prints ink to stock, and stock is at 70 ℃ of bake out temperatures subsequently, and the equipment of employing is dryer.

(4) be completed for printing after, obtain printed matter 3, ink is reclaimed, sealing is put into service sink with printing machine and is cleaned.

Embodiment 4

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

(2) the plastics stock is written between forme and the last item, the forme running after 4 minutes is depressed last item, puts down scraper, and print speed printing speed is 245m/min;

(3) forme prints ink to stock, and stock is at 80 ℃ of bake out temperatures subsequently, and the equipment of employing is dryer.

(4) be completed for printing after, obtain printed matter 4, ink is reclaimed, sealing is put into service sink with printing machine and is cleaned.

According to embodiment 1, the printed matter 1 that embodiment 2 and embodiment 3 obtain, printed matter 2 and printed matter 3, we are before printing, in the ink bucket, carried out mixing of ink and water, there is not the volatilization of toxicant, add in the ink groove, the version of intaglio plate is dark to be 18u-30u " shallow version ", " the dark version " of the 25u-50u that adopts than conventional printing ink intaglio printing saved cost more, is completed for printing rear sampling and detects, the adhesive force of ink is consistent with printing ink, here higher for the performance requirement of drying plant, because the thorough dried time of ink can be more longer than printing ink, it can also be seen that from embodiment 4, the lifting of print speed printing speed has improved the efficient of printing.

The above only is preferred embodiment of the present invention, and is in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims

1. the gravure process of an ink is characterized in that, may further comprise the steps:

(1) ink viscosity allotment: ink mixed stirring evenly with water, the volume that adds entry is 1% ~ 15% of ink volume, obtains viscosity and be the ink of 8 ~ 18 seconds wiping grace cups/No. 3;

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

(4) formal printing: forme prints ink to stock, and print speed printing speed is made as 70m/min ~ 250m/min, 40 ℃ subsequently ~ 80 ℃ oven dry stocks.

2. the gravure process of ink as described in claim 1, it is characterized in that: the volume that adds entry in the step (1) is 1% ~ 5% of ink volume, described viscosity is to 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 the step (2) is dark to be 15u ~ 28u.

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

5. the gravure process of ink as described in claim 1 is characterized in that: in the step (4), if described stock is the plastics stock, then the 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: in step (4) afterwards, and (5) post-processed also in steps: comprise remaining ink is returned the dress sealing, printing machine is cleaned.