CN104370763A

CN104370763A - Preparation method of assistant for water-based ink

Info

Publication number: CN104370763A
Application number: CN201410504497.0A
Authority: CN
Inventors: 徐建明
Original assignee: Central Asia Suzhou Ink Co Ltd
Current assignee: Central Asia Suzhou Ink Co Ltd
Priority date: 2014-09-26
Filing date: 2014-09-26
Publication date: 2015-02-25

Abstract

The invention provides a preparation method of an assistant for water-based ink. The preparation method comprises the following steps: 1, synthesizing crude sodium dodecylamino chloracetate; 2, preparing pure white powder; and 3, carrying out a saponification reaction to prepare the assistant. The preparation method of the assistant for water-based ink has the advantages of reasonable process, scientific and convenient operation process, and moderate cost, and the assistant prepared through the method is safe and efficient, and can be used in the water-based ink to greatly improve the dispersion of the water-based ink in order to improve the color density and the glossiness of the water-based ink.

Description

A kind of preparation method of water color ink used additives

Technical field

The present invention relates to a kind of preparation method of auxiliary agent, particularly relate to a kind of preparation method of water color ink used additives, belong to technical field of ink.

Background technology

Ink is the important materials for printing, and it by printing by pattern, literal table now on the substrate.Ink is generally made up of pigment, low-melting ink vehicle, solvent and auxiliary agent etc., and these uniform composition ground mixing also form the gluey fluid of a kind of stickiness through repeat-rolling.Ink is widely used in the various printings such as books and periodicals, packing and decorating, building decoration, and along with social demand increases, ink kind and output is respective extension and growth also.Current packages printing industry mainly adopts solvent type ink, solvent type ink all can discharge organic substance poisonous in a large number in preparation and printing process, these materials not only contaminate environment, infringement HUMAN HEALTH, and disaster hidden-trouble is there is in production, transport and storage process.Relative to traditional solvent type ink, the water color ink of environmental protection, low toxicity has become the main development direction of ink industry.

Water color ink is by water soluble resin, pigment dyestuff, tensio-active agent and the related auxiliaries ink through abrasive machining.As a kind of novel green printing material, water color ink, due to not containing volatile organic solvent, greatly reduces the discharge of organic volatile, thus alleviates topsoil, improve the environment of press operator, be conducive to worker health.But compared with solvent type ink, water color ink exists the deficiencies such as colour density is low, glossiness is poor at present, and these problems are all relevant with the dispersiveness of water color ink, so the auxiliary agent that exploitation improves water color ink dispersiveness has positive meaning.

Summary of the invention

For the demand, the invention provides a kind of preparation method of water color ink used additives, this preparation method's procedure arrangement is reasonable, moderate cost, the auxiliary agent produced by optimum synthesis technique for greatly improving the dispersiveness of water color ink in water color ink, and then improves colour density and the glossiness of water color ink.

The present invention is a kind of preparation method of water color ink used additives, and this preparation method comprises the steps: a) to synthesize the thick product of amino dodecane base sodium chloroacetate, and b) making pure white powder, c) saponification reaction produces product.

In a preferred embodiment of the present invention, in described step a), the main component of synthetics is: amino dodecane, dichloro acetic acid, salt of wormwood and toluene solvant; Its preparation process is as follows: first, quantitative amino dodecane, dichloro acetic acid and toluene solvant is placed in reactor and stirs, and temperature controls at 40 DEG C-45 DEG C, and the time is about 30-40 minute; Then, in reactor, add salt of wormwood as catalyzer, and under the protection of nitrogen uniform stirring, the temperature increase to 120 DEG C of reactor, the time controling of building-up reactions is at 18-20 hour; Finally, take out and be cooled to room temperature.

In a preferred embodiment of the present invention, in described step b), preparation process is as follows: first, and the thick product of amino dodecane base sodium chloroacetate produced by last process is placed in evaporation equipment, and vaporization temperature controls at about 60 DEG C, desolvation; Then, move into reactor and also add recrystallization solvent, ether and the dehydrated alcohol mixing solutions of recrystallization solvent to be volume ratio be 4:1; Finally, temperature of reaction kettle is promoted to 80 DEG C-90 DEG C, carries out recrystallization process, the number of times of recrystallization process is 3 times, and the temperature head of each process is 3 DEG C, and the timed interval is 2 minutes.

In a preferred embodiment of the present invention, in described step c), preparation process is as follows: first, quantitative sodium hydroxide is placed in reactor with the fine white powder produced and mixes; Then, in reactor, add quantitative dehydrated alcohol, saponification reaction 2.5-3 hour at 40 DEG C-45 DEG C; Then, use evaporation equipment steaming to desolventize and obtain solid product; Finally, absolute ethanol washing solid product is re-used, preparing finished articles.

Present invention is disclosed a kind of preparation method of water color ink used additives, this preparation method's procedure arrangement is reasonable, operating process science, convenient, moderate cost, obtained auxiliary agent safely, efficiently, for the dispersiveness of water color ink greatly can be improved in water color ink, and then improve colour density and the glossiness of water color ink.

Accompanying drawing explanation

Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation:

Fig. 1 is the process figure of embodiment of the present invention water color ink used additives preparation method.

Embodiment

Below in conjunction with accompanying drawing, preferred embodiment of the present invention is described in detail, can be easier to make advantages and features of the invention be readily appreciated by one skilled in the art, thus more explicit defining is made to protection scope of the present invention.

Fig. 1 is the process figure of embodiment of the present invention water color ink used additives preparation method; This preparation method comprises the steps: a) to synthesize the thick product of amino dodecane base sodium chloroacetate, and b) making pure white powder, c) saponification reaction produces product.

Embodiment 1

The concrete preparation process of the water color ink used additives that the present invention mentions is as follows:

A) synthesize amino dodecane base sodium chloroacetate thick product, the main component of synthetics and the percent mass proportioning accounting for total raw material are: amino dodecane 28%, dichloro acetic acid 17%, salt of wormwood 1% and toluene solvant 33%; Its preparation process is as follows: first, amino dodecane, dichloro acetic acid and toluene solvant is placed in reactor and stirs, and temperature controls at 40 DEG C-42 DEG C, and the time is about 33-35 minute; Then, in reactor, add salt of wormwood as catalyzer, and under the protection of nitrogen uniform stirring, the temperature increase to 120 DEG C of reactor, the time controling of building-up reactions is at 18 hours; Finally, take out and be cooled to room temperature;

B) making pure white powder, preparation process is as follows: first, and the thick product of amino dodecane base sodium chloroacetate produced by last process is placed in evaporation equipment, and vaporization temperature controls at about 60 DEG C, desolvation; Then, move into reactor and also add the recrystallization solvent that mass percent is 4%, ether and the dehydrated alcohol mixing solutions of recrystallization solvent to be volume ratio be 4:1; Finally, temperature of reaction kettle is promoted to 80 DEG C-90 DEG C, carries out recrystallization process, the number of times of recrystallization process is 3 times, and the temperature head of each process is 3 DEG C, and the timed interval is 2 minutes;

C) saponification reaction produces product, and preparation process is as follows: first, quantitative sodium hydroxide is placed in reactor with the fine white powder produced and mixes; Then, in reactor, add quantitative dehydrated alcohol, saponification reaction 2.5 hours at 43 DEG C-45 DEG C; Then, use evaporation equipment steaming to desolventize and obtain solid product; Finally, re-use absolute ethanol washing solid product, obtained amino dodecane base sodium chloroacetate auxiliary agent.

Embodiment 2

A) synthesize amino dodecane base sodium chloroacetate thick product, the main component of synthetics and the percent mass proportioning accounting for total raw material are: amino dodecane 30%, dichloro acetic acid 16%, salt of wormwood 1.2% and toluene solvant 34%; Its preparation process is as follows: first, amino dodecane, dichloro acetic acid and toluene solvant is placed in reactor and stirs, and temperature controls at 42 DEG C-43 DEG C, and the time is about 30-32 minute; Then, in reactor, add salt of wormwood as catalyzer, and under the protection of nitrogen uniform stirring, the temperature increase to 120 DEG C of reactor, the time controling of building-up reactions is at 19 hours; Finally, take out and be cooled to room temperature;

B) making pure white powder, preparation process is as follows: first, and the thick product of amino dodecane base sodium chloroacetate produced by last process is placed in evaporation equipment, and vaporization temperature controls at about 60 DEG C, desolvation; Then, move into reactor and also add the recrystallization solvent that mass percent is 5%, ether and the dehydrated alcohol mixing solutions of recrystallization solvent to be volume ratio be 4:1; Finally, temperature of reaction kettle is promoted to 80 DEG C-90 DEG C, carries out recrystallization process, the number of times of recrystallization process is 3 times, and the temperature head of each process is 3 DEG C, and the timed interval is 2 minutes;

C) saponification reaction produces product, and preparation process is as follows: first, quantitative sodium hydroxide is placed in reactor with the fine white powder produced and mixes; Then, in reactor, add quantitative dehydrated alcohol, saponification reaction 3 hours at 40 DEG C-42 DEG C; Then, use evaporation equipment steaming to desolventize and obtain solid product; Finally, re-use absolute ethanol washing solid product, obtained amino dodecane base sodium chloroacetate auxiliary agent.

The productive rate of the thick product of amino dodecane base sodium chloroacetate obtained by above-mentioned technique can reach 58.91%, and through practical application test, the amino dodecane base sodium chloroacetate auxiliary agent produced, in water color ink, when addition is 1.6%, has best dispersion effect.

Present invention is disclosed a kind of preparation method of water color ink used additives, be characterized in: this preparation method's procedure arrangement is reasonable, operating process science, convenient, moderate cost, obtained auxiliary agent safely, efficiently, for the dispersiveness of water color ink greatly can be improved in water color ink, and then improve colour density and the glossiness of water color ink.

The above; be only the specific embodiment of the present invention; but protection scope of the present invention is not limited thereto; any those of ordinary skill in the art are in the technical scope disclosed by the present invention; the change can expected without creative work or replacement, all should be encompassed within protection scope of the present invention.Therefore, the protection domain that protection scope of the present invention should limit with claims is as the criterion.

Claims

1. a preparation method for water color ink used additives, is characterized in that, this preparation method comprises the steps: a) to synthesize the thick product of amino dodecane base sodium chloroacetate, and b) making pure white powder, c) saponification reaction produces product.

2. the preparation method of water color ink used additives according to claim 1, is characterized in that, in described step a), the main component of synthetics is: amino dodecane, dichloro acetic acid, salt of wormwood and toluene solvant; Its preparation process is as follows: first, quantitative amino dodecane, dichloro acetic acid and toluene solvant is placed in reactor and stirs, and temperature controls at 40 DEG C-45 DEG C, and the time is about 30-40 minute; Then, in reactor, add salt of wormwood as catalyzer, and under the protection of nitrogen uniform stirring, the temperature increase to 120 DEG C of reactor, the time controling of building-up reactions is at 18-20 hour; Finally, take out and be cooled to room temperature.

3. the preparation method of water color ink used additives according to claim 1, is characterized in that, in described step b), preparation process is as follows: first, the thick product of amino dodecane base sodium chloroacetate produced by last process is placed in evaporation equipment, and vaporization temperature controls at about 60 DEG C, desolvation; Then, move into reactor and also add recrystallization solvent, ether and the dehydrated alcohol mixing solutions of recrystallization solvent to be volume ratio be 4:1; Finally, temperature of reaction kettle is promoted to 80 DEG C-90 DEG C, carries out recrystallization process, the number of times of recrystallization process is 3 times, and the temperature head of each process is 3 DEG C, and the timed interval is 2 minutes.

4. the preparation method of water color ink used additives according to claim 1, is characterized in that, in described step c), preparation process is as follows: first, quantitative sodium hydroxide is placed in reactor with the fine white powder produced and mixes; Then, in reactor, add quantitative dehydrated alcohol, saponification reaction 2.5-3 hour at 40 DEG C-45 DEG C; Then, use evaporation equipment steaming to desolventize and obtain solid product; Finally, absolute ethanol washing solid product is re-used, preparing finished articles.