阅读说明：本技术 含有天然植物色素的可食性喷印油墨及其制备方法 (Edible jet printing ink containing natural plant pigment and preparation method thereof ) 是由 李全宏 李乐 李菲 于 2019-07-30 设计创作，主要内容包括：本发明公开了一种含有天然植物色素的可食性喷印油墨,包括如下重量份组分：天然植物色素1-5重量份；可食性溶剂80～90重量份；可食性连接料5-10重量份；可食性助剂4-10重量份。所述天然植物色素是从黑果枸杞制备的天然花青素。本发明在采用天然植物色素黑果枸杞花青素的情况下,所得可食性喷印油墨就能够达到与采用非天然色素如焦糖色几乎相同的粘度、表面张力和电导率,粘度低,具有较好的染色效果,印刷性能优良,且没有任何毒性,可食用,可用于药品的表面印刷、纸质包装材料的表面装潢,还可以直接用于喷印煎饼、面包等食品表面的印刷,对食品没有污染。(the invention discloses edible jet printing ink containing natural plant pigment, which comprises the following components in parts by weight: 1-5 parts of natural plant pigment; 80-90 parts by weight of an edible solvent; 5-10 parts of edible binder; 4-10 parts of edible auxiliary agent. The natural plant pigment is natural anthocyanin prepared from lycium ruthenicum. Under the condition of adopting natural plant pigment lycium ruthenicum anthocyanin, the edible jet printing ink can achieve the viscosity, surface tension and conductivity almost the same as those of non-natural pigment such as caramel, has low viscosity, better dyeing effect, excellent printing performance and no toxicity, is edible, can be used for surface printing of medicines and surface decoration of paper packaging materials, and can also be directly used for surface printing of food such as jet-printed pancakes, bread and the like, and has no pollution to food.)

1. The edible jet printing ink containing natural plant pigment is characterized by comprising the following components in parts by weight:

1-5 parts of natural plant pigment;

80-90 parts by weight of an edible solvent;

5-10 parts of edible binder;

4-10 parts of edible auxiliary agent.

2. The edible jet ink of claim 1, comprising the following components in parts by weight:

2-4 parts of natural plant pigment;

82-86 parts by weight of an edible solvent;

6-9 parts of edible connecting material;

5-8 parts of edible auxiliary agent.

3. The edible jet ink of claim 1, comprising the following components in parts by weight:

3 parts of natural plant pigment;

83 parts by weight of edible solvent;

8 parts of edible connecting material;

6 parts of edible auxiliary agent.

4. The edible jet ink of any one of claims 1-3, wherein the natural plant pigment is a natural anthocyanidin.

5. The edible jet ink of any one of claims 1-3, wherein the soluble solvent is distilled water.

6. The edible jet ink of any one of claims 1-3, wherein the edible vehicle is food grade glycerol.

7. The edible jet ink of any one of claims 1-3, wherein the edible additive is food grade sorbitol.

8. The edible jet ink of claim 4, wherein the natural anthocyanins are prepared from Lycium ruthenicum.

9. the edible jet printing ink of claim 8, wherein the process for preparing the natural anthocyanins from lycium ruthenicum comprises the steps of:

(1) Crushing dried lycium ruthenicum mill fruits, adding petroleum ether, degreasing by using a Soxhlet extractor, and naturally air-drying to remove an organic solvent to obtain degreased lycium ruthenicum mill powder;

(2) Adding 75% edible ethanol into the degreased lycium ruthenicum powder for leaching, and pouring out a leaching solution;

(3) Adding 75% edible ethanol by mass into the leaching liquor obtained in the step (2), and performing secondary shaking leaching;

(6) filtering the leaching liquor obtained in the step (5), and collecting the leaching liquor;

(7) Filtering the leaching liquor obtained in the step (6) through a 40um microporous filter membrane;

(8) And (4) performing rotary evaporation on the leaching liquor obtained in the step (7), and concentrating to about 40mL to obtain the natural anthocyanin.

10. a method of preparing the edible jet printing ink according to any one of claims 1 to 3, comprising the steps of:

Adding the edible connecting material into the concentrated solution of the natural plant pigment, and uniformly mixing; then, adding an edible auxiliary agent, and uniformly mixing; and finally, adding an edible solvent to obtain the final product, namely the edible jet printing ink.

Technical Field

the invention relates to the technical field of edible printing ink, in particular to edible jet printing ink containing natural plant pigment and a preparation method thereof.

Background

In recent years, with the diversification of foods, people hope to draw more complex color patterns on the foods, customize personalized products, endow the foods with bright colors and aesthetic feeling, and improve the effects of the surface decoration effect and the efficiency of the products. However, the traditional printing ink is prepared from chemical raw materials, and the formula of the traditional printing ink contains certain harmful components including gasoline, toluene, xylene, kerosene and aromatic compounds, so that the traditional printing ink can bring pollution to food to a certain extent after contacting with the food, and poses certain threat to the health of human bodies. People have increasingly high call for green printing and environment-friendly inks, which become the subject of the printing world.

the edible ink-jet ink is a novel water-based green environment-friendly ink, the raw materials of the ink-jet ink all meet the food hygiene standard, the ink-jet ink has the edible characteristic, and the ink-jet ink can be directly used for ink-jet printing on the surfaces of foods and medicines and the packages of the products. At present, the edible ink is mainly applied to the surface decoration of foods (or medicines), and salty snacks (such as potato chips, popcorn and the like), biscuits, chocolates, candies and other baked foods can be applied to the surface decoration of the foods, and the food package printing of the foods is carried out. Printing on pharmaceutical tables is mainly directed to tablets, capsules, and the like. The edible ink has the edible characteristics, and is added with the change of the dietary habits of people, the improvement of aesthetic requirements and strong pursuit of individuality, so that the ink can be widely applied.

In view of the fact that the current ink development technology for printing directly on the surfaces of food and drugs is not mature, the variety of ink is few, the ink is mostly used for screen printing, only a few products can be printed on the surfaces of the drugs, the application range is narrow, the colors are single, the images are simple, and the main reason is that the technology is not mature enough.

the information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.

disclosure of Invention

The invention aims to provide edible jet printing ink containing natural plant pigment, which is nontoxic, low in viscosity, edible, good in dyeing effect and excellent in printing performance, can be directly printed on the surfaces of foods and medicines, and can also be applied to surface decoration of paper food packaging materials.

in order to achieve the purpose, the invention provides edible jet printing ink containing natural plant pigment, which is characterized by comprising the following components in parts by weight:

1-5 parts of natural plant pigment; 80-90 parts by weight of an edible solvent; 5-10 parts of edible binder; and 4-10 parts of edible auxiliary agent.

in a preferred embodiment, the edible jet printing ink comprises the following components in parts by weight:

2-4 parts of natural plant pigment; 82-86 parts by weight of an edible solvent; 6-9 parts of edible connecting material; and 5-8 parts of edible auxiliary agent.

In a preferred embodiment, the edible jet printing ink comprises the following components in parts by weight:

3 parts of natural plant pigment; 83 parts by weight of edible solvent; 8 parts of edible connecting material; and 6 parts of edible auxiliary agent.

The auxiliary agent can ensure that the edible ink forms a stable system.

Connecting materials: the adhesive fluid is prepared by connecting and dispersing solid powder to form a paste-like adhesive body, transferring the paste-like adhesive body to a printing stock through a printing machine, and fixing a pigment on the printing stock. It is the main component of the ink, plays a role in connection, can be used as a carrier of pigment, plays a role in dispersion, and improves the adsorption force of the ink on a printing plate.

In a preferred embodiment, the natural plant pigment is a natural anthocyanin.

in a preferred embodiment, the soluble solvent is distilled water.

In a preferred embodiment, the edible vehicle is food grade glycerol.

The food-grade glycerol has the function of a cosolvent.

In a preferred embodiment, the edible auxiliary agent is food grade sorbitol.

The addition of the food-grade sorbitol can obviously change the surface or interfacial surface tension, and the conductivity and the viscosity can also be obviously changed.

In a preferred embodiment, the natural anthocyanins are prepared from lycium ruthenicum.

the Lycium ruthenicum Murr pigment is dark in color and contains natural antioxidant components.

In a preferred embodiment, the method for preparing natural anthocyanin from lycium ruthenicum comprises the following steps:

(1) crushing dried lycium ruthenicum mill fruits, adding petroleum ether, degreasing by using a Soxhlet extractor, and naturally air-drying to remove an organic solvent to obtain degreased lycium ruthenicum mill powder;

(2) adding 75% edible ethanol into the degreased lycium ruthenicum powder for leaching, and pouring out a leaching solution;

(3) adding 75% edible ethanol by mass into the leaching liquor obtained in the step (2), and performing secondary shaking leaching;

(6) Filtering the leaching liquor obtained in the step (5), and collecting the leaching liquor;

(7) Filtering the leaching liquor obtained in the step (6) through a 40um microporous filter membrane;

(8) and (4) performing rotary evaporation on the leaching liquor obtained in the step (7), and concentrating to about 40mL to obtain the natural anthocyanin.

the invention also aims to provide a preparation method of the edible jet printing ink, which comprises the following specific steps: adding the edible connecting material into the concentrated solution of the natural plant pigment, and uniformly mixing; then, adding an edible auxiliary agent, and uniformly mixing; and finally, adding an edible solvent to obtain the final product, namely the edible jet printing ink.

compared with the prior art, the invention has the following beneficial effects:

(1) Under the condition of adopting natural plant pigment lycium ruthenicum anthocyanin, the edible jet printing ink can achieve the viscosity, surface tension and conductivity almost the same as those of the edible jet printing ink adopting non-natural pigment such as caramel, and has the advantages of low viscosity, better dyeing effect and excellent printing performance.

(2) the edible jet printing ink containing the natural plant pigment has no toxicity, is edible, can be used for surface printing of medicines and surface decoration of paper packaging materials, can also be directly used for surface printing of food such as jet printing of pancakes, bread and the like, and has no pollution to the food.

Detailed Description

the following detailed description is provided to facilitate a better understanding of the invention. It should be understood, however, that the scope of the present invention is not limited by the particular embodiments described. In the examples which follow, all parts and percentages are given by weight unless otherwise indicated.