CN104312283A - Anti-expansion color printing ink and production method thereof - Google Patents

Abstract

The invention provides anti-expansion color printing ink. The ink is prepared from a pigment, a coupling agent, a filler, a thinner and an additive and is characterized in that an azo or phthalocyanine pigment serves as the pigment; polyester resin serves as the coupling agent; talcum powder serves as the filler; the thinner comprises neutral vegetable oil and mineral oil; the additive comprises a titanate coupling agent, toluene, dimethylbenzene, an organic reducing agent, an antioxidant and water-based wax; the mass percent of the ink constituents is as follows: the pigment is 10-13%, the coupling agent is 25-30%, the filler is 10-15%, the thinner is 30-40%, and the additive is 10%. In the invention, the phosphate type monoalkoxy titanate is added, the pigment with low dependency on a quick drying agent is selected, and the stirring and spraying methods are used to enable the whole ink to be uniform, so as to achieve the expansion resistance.

Description

A kind of anti-swollen litho ink and its production method

Technical field

The present invention relates to color printing technical field, particularly relate to a kind of anti-swollen litho ink and its production method.

Background technology

In Printing industry, occasional runs into printing and occurs streak or the light phenomenon of color.Occur that the major cause of this phenomenon is the face of ink system, filler is swollen and cause the overall gel of ink.People for swell or the ink that constantly stirs in ink fountain is taked in gel, or install an agitator in ink fountain, also have and put an iron rod on ink, push ink to ductor roller, to keep the mobility of packages printing ink.Operative employee mostly like adopting the stand linseed oil of middle and high viscosity or thinner regulate ink (but this must with tune with, otherwise still can continue to swell or gel).This ink is outwelled by some producers, and that change good fluidity and that water resistant is strong ink goes printing again.As can be seen here, take which kind of remedial measures that production efficiency all can be caused to reduce, the problem that production cost raises.

Some experts propose the thinking that some solve in the industry, such as Tianzhang City's green chemical industry auxiliary reagent factory produces one and prevents bursting jelly (model TMC-3), there is specific function---the coating of gel or ink " are come back to life ", makes the mill base dissipate-swelling of swelling, viscosity returns.Only ink need be poured into by putting to burst after jelly dilutes when ink is swollen, can by the ink dissipate-swelling of gel of swelling.

Visible prior art still focus on ink swell after treatment process on, and not get on the generation controlling to swell from source (ink).

Summary of the invention

For the deficiencies in the prior art, the invention reside in and a kind of anti-swollen litho ink and its production method are provided.

For achieving the above object, the present invention is achieved by following technical proposals:

A kind of anti-swollen litho ink, ink composition comprises colorant, linking agent, weighting agent, thinner and auxiliary agent, it is characterized in that, described colorant adopts azo system or the blue or green series pigments of phthalein, its effect improves tinting strength, it is short to put the dry time, to reducing the use of quick dry agent, thus prevents the situation of swelling; Described linking agent is vibrin, plays dispersed color, give ink suitable to cling, mobility and transfer performance; Described weighting agent adopts talcum powder, because acid or basic filler all likely cause swelling, therefore adopts neutral stopping composition; Thinner comprises indeterminate plant oil and mineral oil, and its effect is each component of dilution; Auxiliary agent comprises titanate coupling agent, toluene, dimethylbenzene, organic reducing agent, oxidation inhibitor, water-borne wax, the effect that titanate coupling agent, toluene, dimethylbenzene have dispersion, are cross-linked and solidify, and play the effect preventing from swelling, organic reducing agent, oxidation inhibitor then have the effect preventing dry skinning, and water-borne wax then has increasing profit effect and its water-based speciality can not make ink gel; The mass percent of described ink composition is as follows: colorant: 10-13%, linking agent: 25-30%, weighting agent: 10-15%, thinner: 30-40%, auxiliary agent: 10%.

Particularly, in described thinner, indeterminate plant is oily is 3:1 with the volume ratio of mineral oil, and indeterminate plant oil is soft, then dilution effect is good for mineral oil, dilutes and mix all submissiveer under practice finds this ratio.

Particularly, the mass percent that in described auxiliary agent, titanate coupling agent, toluene, dimethylbenzene, organic reducing agent, oxidation inhibitor, water-borne wax are shared in ink is respectively: titanate coupling agent 1%, toluene 3%, dimethylbenzene 3%, organic reducing agent 1%, oxidation inhibitor 1%, water-borne wax 1%.

Particularly, described titanate coupling agent is phosphatic type monoalkoxy class titanic acid ester.

A production method for anti-swollen litho ink, comprise pre-treatment and mixing, it is characterized in that, described pre-treatment comprises the following steps:

Step one, adds phosphatic type monoalkoxy class titanic acid ester, toluene, dimethylbenzene according to the mass percent of described ink composition in whipping appts;

Step 2, stir, stir speed (S.S.) is 1000 rpms, and churning time is 15 minutes;

Step 3, discharging is for subsequent use;

Described mixing comprises the following steps:

Step one, loads atomizer by pretreated discharging;

Step 2, puts into whipping appts by colorant, linking agent, weighting agent;

Step 3, is uniformly mixed, and mixing rate is 1000 rpms, and mixing temperature is 90 degrees Celsius, mixing time 1 hour;

Step 4, is evenly sprayed into pretreated discharging in whipping appts by atomizer in mixing process, slowly adds the organic reducing agent, oxidation inhibitor and the water-borne wax that take according to the mass percent of described ink composition in the process be uniformly mixed;

Step 5, has mixed rear discharging and has been finished product.

Beneficial effect of the present invention is: the present invention makes ink entirety have anti-ability of swelling equably by adding phosphatic type monoalkoxy class titanic acid ester and selecting to the lower pigment of quick dry agent dependency and by the mode stirred and spray.

Embodiment

Below in conjunction with embodiment, the present invention is described in further detail.

Embodiment 1

Balance is used to take raw material for standby according to following formula.

First the phosphatic type monoalkoxy class titanic acid ester, toluene, the dimethylbenzene that will take according to described formula, put into homogenizer successively, then stir 15 minutes with the stir speed (S.S.) of 1000 rpms at ambient temperature, discharging is for subsequent use; Because toluene, dimethylbenzene have certain volatility and toxicity, therefore must encloses container be loaded after discharging, and mixing process must be started as early as possible after discharging.

Then blue or green for the phthalein taken according to described formula series pigments, vibrin, talcum powder, indeterminate plant oil, mineral oil are put into high speed agitator, then under 90 degrees celsius, 1 hour is stirred with the stir speed (S.S.) of 1000 rpms, the organic reducing agent, oxidation inhibitor and the water-borne wax that take according to described formula is slowly added in the process be uniformly mixed, meanwhile use atomizer the discharging of pre-treatment step to be sprayed into uniformly, mixed.

Embodiment 2

Balance is used to take raw material for standby according to following formula.

First the phosphatic type monoalkoxy class titanic acid ester, toluene, the dimethylbenzene that will take according to described formula, put into homogenizer successively, then stir 15 minutes with the stir speed (S.S.) of 1000 rpms at ambient temperature, discharging is for subsequent use; Because toluene, dimethylbenzene have certain volatility and toxicity, therefore must encloses container be loaded after discharging, and mixing process must be started as early as possible after discharging.

Then blue or green for the phthalein taken according to described formula series pigments, vibrin, talcum powder, indeterminate plant oil, mineral oil are put into high speed agitator, then under 90 degrees celsius, 1 hour is stirred with the stir speed (S.S.) of 1000 rpms, the organic reducing agent, oxidation inhibitor and the water-borne wax that take according to described formula is slowly added in the process be uniformly mixed, meanwhile use atomizer the discharging of pre-treatment step to be sprayed into uniformly, mixed.

In production practice, the ink that embodiment 1 the is produced effect that prevents from swelling is better, but should say that embodiment 2 color effect performance while sacrificing small transfer performance better, has certain promotion meaning to actual production.

What describe in above-described embodiment and specification sheets just illustrates principle of the present invention and most preferred embodiment; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.

Claims (5)

1. an anti-swollen litho ink, ink composition comprises colorant, linking agent, weighting agent, thinner and auxiliary agent, it is characterized in that, described colorant adopts azo system or the blue or green series pigments of phthalein, described linking agent is vibrin, described weighting agent adopts talcum powder, and thinner comprises indeterminate plant oil and mineral oil, and auxiliary agent comprises titanate coupling agent, toluene, dimethylbenzene, organic reducing agent, oxidation inhibitor, water-borne wax; The mass percent of described ink composition is as follows: colorant: 10-13%, linking agent: 25-30%, weighting agent: 10-15%, thinner: 30-40%, auxiliary agent: 10%.

2. one according to claim 1 prevents swollen litho ink, it is characterized in that: in described thinner, indeterminate plant oil is 3:1 with the volume ratio of mineral oil.

3. one according to claim 1 prevents swollen litho ink, it is characterized in that: the mass percent that in described auxiliary agent, titanate coupling agent, toluene, dimethylbenzene, organic reducing agent, oxidation inhibitor, water-borne wax are shared in ink is respectively: titanate coupling agent 1%, toluene 3%, dimethylbenzene 3%, organic reducing agent 1%, oxidation inhibitor 1%, water-borne wax 1%.

4. the one according to claim 1 or 3 prevents swollen litho ink, it is characterized in that: described titanate coupling agent is phosphatic type monoalkoxy class titanic acid ester.

5. a production method for anti-swollen litho ink, comprise pre-treatment and mixing, it is characterized in that, described pre-treatment comprises the following steps:

Step one, adds phosphatic type monoalkoxy class titanic acid ester, toluene, dimethylbenzene according to the mass percent of described ink composition in whipping appts;

Step 2, stir, stir speed (S.S.) is 1000 rpms, and churning time is 15 minutes;

Step 3, discharging is for subsequent use;

Described mixing comprises the following steps:

Step one, loads atomizer by pretreated discharging;

Step 2, puts into whipping appts by colorant, linking agent, weighting agent;

Step 3, is uniformly mixed, and mixing rate is 1000 rpms, and mixing temperature is 90 degrees Celsius, mixing time 1 hour;

Step 4, is evenly sprayed into pretreated discharging in whipping appts by atomizer in mixing process, slowly adds the organic reducing agent, oxidation inhibitor and the water-borne wax that take according to the mass percent of described ink composition in the process be uniformly mixed;

Step 5, has mixed rear discharging and has been finished product.