Dying method for obtaining blue colour. RU patent 2516946.

FIELD: chemistry.

SUBSTANCE: claimed is method of dyeing for obtaining blue colour with application of natural dye. Method includes dyeing fabric with unprocessed dye, ferro-mordanting fabric, having undergone dyeing with unprocessed dye with ferro-mordant, preparation of potassium ferrocyanide solution by dissolving potassium ferrocyanide in water, placement of fabric, having undergone ferro-mordanting into solution, obtained by preparation of potassium ferrocyanide solution and further fabric ripening until blue colour of desirable shade is obtained.

EFFECT: easy and stable fabric dyeing with application of dyes of blue group is ensured even with application of natural dyes as material difficult to obtain blue colour of fabric.

6 cl, 10 dwg, 2 tbl

The technical field

The present invention relates to a method of coloring and more particularly to a method of coloring to get blue in the use of natural dye.

The level of technology

The color indicates the color of fibres or textiles specific color with dyes. Unlike painting in the past using only natural materials formed naturally, today various types of artificial synthetic dyes are used for transmission of different colors. Currently, in most ways colouring use such artificial synthetic dyes.

Occurred the development of technology for the transfer of most of the existing colors, including the development of different methods and materials related to improving the technology of coloring dyes. In this regarding highlighted the advantages of the methods of painting using artificial synthetic dyes, although methods of dyeing with natural dyes also occupy a special position in relation to the transfer of natural colours, harmony with the natural fiber products harmlessness for a human body and use of environmentally friendly materials.

At colouring natural dyes usually use the method of fastening for solving the problem of fixing the color of natural dye. Consolidation is in the handling of fiber for dyeing using substances that create insoluble color composition by connecting with dye, if the latter is unable to fix the color on the fiber or if he is weak for typical color level.

Disclosure of the invention

Technical task

However, even when using this method of fixing the transfer of color has a limit in color due to the use of natural dyes. That is why there is a limit to the type of flowers from dyes obtained in a natural state, and there is a limit in the materials, capable of capturing color on the fiber or tissue, even when using freeze.

The representative colors of the natural colors, the transfer of which is difficult to obtain, is blue. That is, traditionally used in natural dyes dye blue group's rare, and coloring group blue hampered by the problems of fixing color, etc.

Despite the above-mentioned advantages of natural dyes, dyeing with natural dyes are restricted to a few traditional flowers. In addition, the development of the way of color and select a suitable colour for the way to color for color group blue usually fails.

Technical solution

The present invention relates to a method of coloring to obtain blue, capable of transmitting at colouring of different kinds of flowers group blue even when using natural dyes.

Accordingly, some variants of the invention, the offer the method of staining to get blue.

The advantageous effects of the invention

In accordance with the variants of the invention colouring to obtain blue easily and consistently to paint fabric using dyes group blue even if the use of natural dye that is hard to get blue.

In addition, the color group blue may be close to different types feeling blue color by appropriate selection and control of raw dyes, time, impregnation etc

Brief description of drawings

The present invention will be more fully understood from the following detailed description and the accompanying drawings, which are illustrative only and do not limit the present invention.

Figure 1-10 shows pictures that show the status of textile dyeing, painted in accordance with one variant of the invention, using, respectively, the raw dyes from annatto, ink nuts, Mallotus japonicus, acacia, rhubarb, sandalwood, madder, pomegranate, betel and tannin persimmon.

Description best option exercise inventions

The proposed method of colouring includes fabric colouring raw dye, ferro-consolidation tissue, held coloring dye raw, with ferro-prograsses obtaining solution of potassium ferrocyanide by dissolving the ferrocyanide potassium in water and place the tissue, held consolidation of ferro-stain, in the solution obtained by dissolving the ferrocyanide potassium, and the subsequent exposure of tissues to obtain the desired shade of blue.

Raw material dyes may be at least one of persimmon, madder, Gardenia, chestnut, red-drug, ink nuts, annatto, Mallotus japonicus, acacia, rhubarb, sandalwood, pomegranate, betel and wine.

Ferro-consolidation fabrics using ferro-prograsses may include dissolution of the substance ferro-prograsses in the water since normal room temperature, impregnation of fabrics, held coloring dye raw, in the solution of ferro-prograsses and subsequent slow raise the solution temperature to 50 C - 100 C after impregnation of fabrics.

Substance ferro-prograsses used for ferro-fixing, can be FeSO 4 . FeSO 4 , used for ferro-fixing, can be from 1 to 20 wt.% 100 wt.% the fabric.

On the other hand, potassium ferrocyanide used to obtain the solution of potassium ferrocyanide, can be from 1 to 20 wt.% 100 wt.% the fabric.

The implementation of the invention

Now will be more fully described ways to implement the ideas of the invention with reference to the accompanying drawings showing ways to implement the ideas of the invention. The idea of an invention may, however, be embodied in many forms and should not be construed as limited as described here variants of implementation. These variants of the invention presented soon to the present disclosure was complete, and fully convey the scope of the invention specialists in this field.

Colouring to obtain blue described in more detail in the experimental sample and the attached drawings according to one embodiment of the invention.

The word "fabric"used in the present invention, points to an object, colored with dyes, such as different types of fibers, fabric, etc. as goals colour without special restrictions "cloth".

In accordance with the embodiment of the present invention provides the dominant color and the effect of receiving blue colors even when using natural dyes and dyes used in the present invention are mainly dyes obtained directly in the natural state, but the present invention is designed to produce blue through specific additional features only the embodiment of the invention, which will be described below. Therefore, dyes can be applied in different ways, as pre-treated from a natural state or as commonly used dyes in accordance with the variant of the invention, without violating the scope of the invention.

Although usually not necessary to describe and limit dyes, applicable in the invention, if the basic description of natural dyes applicable in the invention may be used in the following example.

1 Persimmon (tannin persimmon)

Persimmon is the fruit growing on a tree and contains a large percentage of glucose and fructose, which contains tannic ingredient Dios Principe with the astringent taste. In addition persimmon contains pectin, carotenoids, etc. At colouring using tannin persimmon on fabric receive color groups brown.

2 madder

Madder is Rubia akane Nakai, and it is called Povorotnaya as a climbing perennial plant of the family Rubiaceae flowers light yellow flowers. Its root is mainly used as a dye.

3 Gardenia

Tree Gardenia is also evergreen member of the family Rubiaceae, and its fruit is called Gardenia. In the past it was used as a food dye, etc.

4 Chestnut

Chestnut is the fruit of the chestnut tree and contains carbohydrates, protein, different types of fats, calcium, vitamins, etc. Tannin received from the shell, use for colouring of the skin, etc.

5 Red-drug

The red - drug is the root Lithospermum erythrorhizon - perennial dicotyledonous Tubiflorae are spread over, and can be used as a medicine in medicine based on herbs, and in the past it was used as purple dye.

Gal is the ink nut insects received in because schlechtendalia chinenis Bell family Robotnik aphid feeds on the leaves Rhus javanica (wood ink nuts) of the lacquer tree. Gal contains tannin in the amount of 50-60%, and ink nut can be used as raw material for chemicals for bleaching of hair or to ink with tanning substance.

7 Annatto

Annatto is a spice made from safflower seeds of the tree. Red dye receive fusion shell seed safflower tree in water or oil.

8 Mallotus japonicus

Mallotus japonicus is a deciduous tree dicotyledonous Euphorbia Archichlamydeae herbrobert, which contains a lot of tannin in the cortex.

9 acacia

Acacia is an evergreen tree as one form of bipartite Resales fabaceae and contains tannin. Betel as a type of vegetable dyes extracted from acacia, and also it can be used as a tool against diarrhea, dye, astringent in medicine and substance containing tannin. When using acacia in medicine, it may be called betel.

10 Betel

Betel is a medicine produced by digestion of wood to antecho or betel family acacia or leaves and shoots of acacia or Mimosa, etc. in herbal medicine. Betel as medicine can be used as antipyretic, tool, promoting digestion, hemostatic means, etc. and can also be used as raw materials for the brown pigment in the leather industry.

11 Rhubarb

Rhubarb is a perennial plant of the family sporysheva squad sporysheva Archichlamydeae. In herbal medicine rhubarb receive medication by removing the skin from the main root of the age of 6-7 years and through the use of small roots, having the form of a burdock, cutting off their safe and drying. He has a light dirty yellow.

12 Sandalwood

Coloring matter of sandalwood can be obtained after extraction in the water status of sandalwood and appears red when acidity and purple when alkalinity.

13 Grenades

The pomegranate is a fruit of Punica granatum, which contains glucose, fructose, citric acid, etc. Cortex contains tannin, and the seeds can contain estrogen as a natural property. Fruit juice has a wonderful color and used for coloring food, wine, etc.

Wine is produced by fermenting grapes or grape juice, usually does the color red or purple group.

In accordance with the variant of the invention, the first fabric paint raw dyes. As mentioned above, as raw dyes for textile dyeing, in accordance with the option of carrying out the invention can be used in different types. That is, in the traditional way, the color can be selected from the properties of the corresponding dyes, and fabric primary paint.

Then when ferro-consolidation using ferro-prograsses fabric, held coloring dye raw, pickle ferro-stain.

Ferro-stain is one of the types above prograsses and is used for fastening being the main stain of iron salts. For a long time ferro-the stain is usually used when dyeing of cotton and silk. In this painting tissue becomes dark color group, for example, black, grey, etc.

Substance ferro-prograsses can be FeSO 4 , FeCl 2 , Fe(CH 3 COO) 2 ) etc. FeSO 4 can be called iron sulfate, light green in the form of crystals, and is the main ferro-stain, as well soluble in water.

Because the tissue is relatively weak for a reasonably long time fixing, it is desirable to perform the consolidation, using a small number of ferro-prograsses within a relatively short time. To do this, ferro-possible use in quantity from 1 to 20 wt.% from the mass of tissue in accordance with the variant of the invention, and also include the stage of heating in the process of ferro-fixing, this accelerating and accurately through consolidation.

That is, the substance of ferro-prograsses in number from 1 to 20 wt.% from the mass of tissue, preferably from 3 to 5 wt.% placed in water with normal temperature and dissolved. Then the fabric, the last color dye raw, soaked in this solution, and the temperature of the solution is slowly increased to 50-100 C, which leads to the desired processing ferro-stain.

Fabric colour is black or gray after ferro-fastening on fabric, held coloring raw dye, so bright color after coloring dye raw becomes the color level, indistinguishable to the eye, but the color difference after coloring raw dye gives a subtle difference sensations received later blue.

Normal connection of the ferrocyanide potassium for manufacturing solution of potassium ferrocyanide used in getting blue in accordance with the variant of the invention, is hexacyanoferrate (II) potassium (K 4 [Fe(CN) 6 ]) and can be called a ferrocyanide potassium, which could be used as an ingredient for getting the blue color of the mineral, such a jewel in the past.

That is, to obtain blue fabric with natural dye as an important goal of the present invention is considered that the main theoretical justification based on the mechanism that the blue get on the fabric by the reaction between the ferrocyanide potassium and element iron in tissue, held ferro-post, as when receiving the blue colour of the mineral with potassium ferrocyanide. Accordingly, the reception is blue with a solution of potassium ferrocyanide can be a major characteristic of the composition of the invention.

When the fabric past ferro-consolidation placed in a solution of potassium ferrocyanide, fabric color changes to blue over time. The density of blue cloth, soaked in a solution changes over time. Therefore, the time of impregnation of cloth in the solution may be a factor in the transmission and density of color, including the above choice of raw dye.

In accordance with the above variant of the invention, the fabric, dyed blue, can be obtained using natural dyes, which was a difficult task in the current level of technology, in obtaining stable color.

Stages color using some of the above natural dyes and their results are described in the experimental examples below.

Experimental sample

Painting for getting blue with natural dye

1) Selection of dyes

Dyes selected in this experiment are shown in Table 1.

[Table 1]

Mallotus Japonicus

Sandalwood. tree

Tannin persimmon

2) Colouring raw dyes

The fabric is dyed using the above natural dyes according to the General scheme based on the dye.

3) ferro-consolidation

FeSO 4 prepared in number from 3 to 5 wt.% 100 wt.% fabrics and dissolved in water, and then the fabric, dyed raw dye placed in this solution with temperatures around 30 C, and the temperature had increased to approximately 80 degrees C. At that time the process took about 30-40 minutes.

Ferrocyanide potassium in the amount from 3 to 5 wt.% 100 wt.% tissue dissolved in cold water at careful hashing.

5) Getting blue

The fabric with color group gray after ferro-fixing, placed in a solution of potassium ferrocyanide. Before the appearance of dark blue color on the cloth, placed into the solution a few minutes passed. Next, was 1 minute or less until the blue color. At this time, to get the desired color time controlled from 1 minute to 20 minutes.

6) Conclusion

The result of the experiment are given in Table 2.

[Table 2]

Mallotus Japonicus

Sandalwood. tree

Tannin persimmon

Figure 10

As shown on the drawings, the top drawing represents the state of the appearance of the color group blue after the above steps method in accordance with the option of the invention, and the lower the drawing shows the color, obtained after the color of raw dye before processing tissue ferro-stain. Regardless of the state of painting raw dye with different colors, all the colors are a group of blue, and the color reproduction is clearly different from each other.

Specialists in this field will be obvious that the idea of the invention can be made to alteration without derogating from the nature or scope of the idea of the invention. So, it is assumed that the idea of the invention covers all such modifications and changes idea of the invention, provided that they fall in the volume of items included in the claims and cash equivalents.

Industrial applicability

The drawings and the description discloses the typical variants of realization of ideas of the invention, and, although applied in concrete terms, they are used in General and descriptive sense, and not to limit, and the volume of the idea of the invention defined in the claims.

1. Way painting for getting blue colors, including: - fabric colouring raw dye; - ferro-consolidation fabrics, subjected coloring dye raw, with ferro-the mordant - preparation of a solution of potassium ferrocyanide by dissolving the ferrocyanide potassium in water and in - room tissue subjected to consolidate ferro-stain, in the solution obtained by the solution of potassium ferrocyanide, and the subsequent exposure of tissues to obtain blue desired shade.

2. The method according to claim 1, characterized in that the raw material of dyes is at least one of persimmon, madder, Gardenia, chestnut, red-drug, ink nuts, annatto, Mallotus japonicus, acacia, rhubarb, sandalwood, pomegranate, betel and wine.

3. The method according to claim 1, wherein ferro-consolidation includes: - the location of the substance ferro-prograsses in the water with normal temperature and its dissolution; - impregnation of fabrics, subjected to the color of raw product, the solution obtained by dissolving substances ferro-a mordant and - slow increase the solution temperature to 50 C - 100 C after impregnation of fabrics.

4. The method according to claim 1 or 3, wherein the substance ferro-prograsses used for ferro-fixing is FeSO 4 .

5. The method according to claim 4, wherein the FeSO 4 , used for ferro-fixing is from 1 to 20 wt.% 100 wt.% the fabric.

6. The method according to claim 1, wherein the ferrocyanide potassium, used for preparation of a solution of potassium ferrocyanide, is from 1 to 20 wt.% 100 wt.% the fabric.