JPH11124778A - Dyeing - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a dyeing method in a dyeing field called plant dyeing or ancient dyeing, by which a dyed product good in absorption of dye, excellent in reproducibility of a dyeing degree, and extremely high in fastness in washing is provided, and excellent in mass-productivity and practicality because a dyeing machine can be used. SOLUTION: This dyeing method for extracting a coloring matter from a natural product and dyeing a thread, a cloth, a sewed product, a nonwoven fabric, etc., made of a cellulosic fiber by the extracted coloring matter comprises powdering the natural product so as to be 20-30 μm, dispersing the obtained powder in a suitable solvent, carrying out a filtering treatment of the dispersed product and dyeing the fiber material by using the filtrate as a coloring material.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dyeing method using a natural dye component.

[0002]

2. Description of the Related Art In the field of dyeing, which is called ancient dyeing or plant dyeing in which fibers are dyed using a natural pigment component, there are various problems as described below.

[0003] Since only a part of the dye is adsorbed, the adsorption rate of the dye is very poor.

[0004] The dye is not uniformly dyed and tends to be spotted, and there is no reproducibility of the dyeing degree and the stability of quality is poor.

[0005] Since the dyeing time is extremely long and is performed manually, a great deal of time and labor is required in the dyeing operation, and the cost is high.

[0006] Poor color fastness.

[0007] Accordingly, dyed products using a natural coloring matter have problems that they cannot be mass-produced, are extremely expensive, and are easily discolored by washing.

The present invention solves the above problems,
To provide a dyeing method that excels in reproducibility of dyeing degree due to good dye adsorption and extremely high washing fastness, and that can be used in a dyeing machine and that excels in practicality that excels in mass productivity. Aim.

[0009]

The gist of the present invention will be described.

[0010] A dye is extracted from a natural product, and the dye is used as a thread, fabric, or sewn product made of cellulosic fibers. A dyeing method for dyeing a fiber material such as a non-woven fabric, wherein a natural product is
The present invention relates to a dyeing method characterized by pulverizing to a micron, dispersing the powder in an appropriate solvent, performing a filtration treatment, and dyeing the fibrous material using the filtered liquid as a coloring material.

A dyeing method for extracting a dye from a natural product and dyeing a fibrous material such as a yarn, fabric, sewn product or nonwoven fabric made of cellulosic fiber with the dye, wherein the dyeing machine is provided with a fibrous material and water or hot water. And a water solvent such as mineral springs or seawater, then add an alkali agent such as sodium hydroxide and heat, then wash with water and neutralize with acid, and then cationizing agent and an alkali agent such as sodium hydroxide Is added and heated, and thereafter, the fiber material is treated by washing with water and neutralizing treatment with an acid, and the fiber material is dyed with a color material obtained by dispersing a natural product in an appropriate solvent. Pertains to the method.

Further, in the dyeing method according to claim 2,
The present invention relates to a dyeing method characterized in that after dyeing a fiber material, a mordant treatment is performed by adding a copper-containing fixing agent.

[0013] In the dyeing method according to any one of claims 2 and 3, after the fiber material is dyed, an anionic agent is added to the fiber material, and the fiber material is heated and held for a predetermined time. The present invention relates to a dyeing method characterized by performing dehydration, drying, and various finishing processes.

The dyeing method according to any one of claims 2 to 4, wherein the natural product is a powder of a plant, an animal pigment such as cochineal, a powder or a clay of a marine organism such as a seaweed, a shellfish or a cormorant. The present invention relates to a dyeing method characterized by using a powder of a mineral such as a mineral.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention (how to carry out the invention) which is considered to be preferable will be described with reference to its operational effects.

The present invention summarizes the effects obtained by repeated experiments as claims.

20 natural products such as herbs and rosemary
The powder is weighed according to a prescribed formulation, dispersed in an appropriate solvent such as water or hot water, and then subjected to a filtration treatment. The filtered liquid is used as a coloring material.

A yarn made of a cellulosic fiber with this coloring material,
Dyeing textiles such as fabrics, sewn products, and non-woven fabrics allows dyes to be adsorbed satisfactorily, resulting in excellent reproducibility of the dyeing degree and extremely high washing fastness.

When the fiber material is cloth, the dyeing operation can be performed by a general dyeing machine such as a jet dyeing machine (for a yarn, a skein dyeing machine or the like, or for a sewn product, etc.). Use paddle dyeing machine or washer dyeing machine.),
It becomes possible to increase the mass productivity by mechanizing the dyeing process.

[0020]

EXAMPLES Specific examples of the present invention will be described.

The dyeing material, the fiber material and the processing machine used were as follows: Dyeing material: Rosemary, mainly leaves of 20 to 30 microns powdered. (Powdering was requested to Giotto Co., Ltd. (powder research maker), and the natural product was powdered as it was.) Fiber material: Purified cellulose fiber cloth (fabric) Processing machine: Closed type It is a jet dyeing machine.

The chemicals and water used for 10 kg of fiber material (fabric) were: dyeing material (rosemary powder): 1 kg sodium hydroxide (99%): 6 kg (3% dissolved in water).
Cationizing agent: 1.5k
g (dissolve in water to make 300 l, 15% ouf) Sodium carbonate (99%): 6 g Acetic acid (90%): 1.5 kg Sodium hydroxide (flakes): Use a small amount to neutralize sodium carbonate Commercial copper containing Fixing agent: 50g (0.5% ow
f) Commercially available anionic agent A: 300 g Commercially available anionic agent F: 300 g.

Hereinafter, the dyeing process of this embodiment will be described in detail.

Step A. Step of preparing color material 1 kg of rosemary powder is weighed and placed in a finely woven polyester cloth bag, and the mouth of the bag is closed.

On the other hand, 20 l of water was placed in the
C., and 6 g of sodium carbonate was put into the dye dissolution tank and dissolved by stirring.

Subsequently, the bag containing the rosemary powder was put into the water of the dye dissolving tank, and the water temperature was raised to 60 ° C.
The pigment is extracted for a predetermined time (30 minutes) with stirring.

Thereafter, a bag containing rosemary powder is raised from the water in the dye dissolving tank, the bag is lightly squeezed, and the extract is put into the dye dissolving tank. The extract is mixed with the water in the dye dissolving tank. The pH is adjusted to 7 with acetic acid at a predetermined temperature (60 ° C.).

Step B. Step of promoting adsorption of dyes etc. (pre-dyeing treatment) Purified cellulose fiber cloth (fabric) 10 into which 250 l of water was put into a closed type liquid jet dyeing machine, and further refined and washed according to a conventional method.
After putting in kg, it is thrown into each other.
Operate at flow rate.

Subsequently, 20 l of water was put into a preparation tank of a closed type liquid jet dyeing machine, 6 kg of sodium hydroxide was dissolved in the water, and the sodium hydroxide solution was added to the tank using a pump.
Introduce into a closed jet dyeing machine over 0 minutes.

Subsequently, the temperature of the water of the closed type jet dyeing machine is raised to 60 ° C., and the water is drained by leaving the closed type jet dyeing machine running for 30 minutes.

Subsequently, the purified cellulosic fiber cloth (cloth) in the closed type liquid jet dyeing machine is sufficiently washed with water (using 250 l of water) and further neutralized with acetic acid.

Subsequently, 250 ml of water was again supplied to the closed type liquid jet dyeing machine.
Then, the closed type jet dyeing machine is operated.

Subsequently, 10 l of water was put into the preparation tank of the closed type liquid jet dyeing machine, 1.5 kg of the cationizing agent was dissolved in the water, and the cationizing agent solution was sealed using a pump for 15 minutes. Put it into a mold flow dyeing machine.

Subsequently, 20 l of water was put into the preparation tank of the closed type liquid jet dyeing machine, and 1.5 kg of sodium hydroxide was added to the water.
Is dissolved and this sodium hydroxide solution is put into a closed jet dyeing machine over 10 minutes using a pump.

Subsequently, the water of the closed type liquid jet dyeing machine was used as shown in Table 1 below.
The temperature was raised to 60 ° C. as described above, and the system was allowed to stand for 60 minutes while operating the closed type liquid jet dyeing machine to drain water.

[Table 1] Subsequently, the purified cellulosic fiber cloth (fabric) in the closed type liquid jet dyeing machine is sufficiently washed with water, further neutralized with acetic acid, and the pH is checked with pH test paper.

Then, the process proceeds to the following step C.

Step C. Dyeing Step (Step of Adsorbing Coloring Material Obtained in Step A to Fiber Material Obtained in Step B) Following step B, 250 l of water is put into a closed type liquid jet dyeing machine, and the closed type liquid jet dyeing machine is used. Activate.

Subsequently, 20 l of the coloring material obtained in the step A is charged at room temperature over about 15 minutes, and the closed type liquid jet dyeing machine is operated and rotated for 10 minutes as it is.

Subsequently, the water of the closed type liquid jet dyeing machine was used as shown in Table 2 below.
The temperature is raised to 60 ° C. as described above, and the apparatus is left for 30 minutes while the closed type liquid jet dyeing machine is operated.

[Table 2] Subsequently, the process proceeds to the following step D.

Step D. Mordant treatment 50 g of a commercially available copper-containing fixing agent is dissolved in 20 l of hot water at 30 ° C. to prepare a fixing agent solution.

This fixing agent solution is introduced into the closed type jet dyeing machine over 15 minutes following the step C.

Subsequently, the water in the closed type jet dyeing machine was left standing at 60 ° C. for 20 minutes to be treated, and then the water was drained. Subsequently, the fiber material in the closed type jet dyeing machine was thoroughly washed with water. I do.

Subsequently, the process proceeds to the following step E.

Step E. Post-treatment 300 g of commercially available anion A and 300 g of commercially available anion F are dissolved in 20 l of hot water at 30 ° C. to prepare an AF solution.

Subsequent to the step D, water 2 was added to the closed type liquid jet dyeing machine.
Add 50 l and operate the closed jet dyeing machine.

Subsequently, the AF solution was charged into a closed type liquid jet dyeing machine, and the water in the closed type liquid jet dyeing machine was heated to 30 ° C.
Leave to stand for 10 minutes.

Subsequently, the fiber material in the closed type liquid jet dyeing machine is taken out without draining.

Subsequently, the process proceeds to the following step F.

Step F. Dehydration and drying step The fiber material obtained in the step E is dehydrated by a centrifugal dehydrator and spread and dried as it is.

The drying is performed with hot air of 100 to 130 ° C.

Subsequently, the process proceeds to the following step G.

Step G. Wrapping and finishing Following the step F, the fiber material is finished to a predetermined width according to a conventional method.

Thus, the dyeing process is completed.

The dyed product obtained by the dyeing process according to this example had the following characteristics.

[0055] Compared with the conventional plant dyeing, the dyeing was carried out with good color and vivid color.

At the time of dyeing, even when the color material concentration was lower than the conventional one, the dyeing condition was the same as that of the conventional product. This is presumed to be because the pigments of the natural product were very well extracted because the natural product was miniaturized, and the extracted dye was adsorbed on the fiber material at an extremely high adsorption rate.

The fibrous material is uniformly dyed, no uneven dyeing occurs, and when the temperature conditions, the color materials, the concentrations of the chemicals, and the like are the same, the reproducibility is extremely good and the dyeing condition is stable. Was. This suggests that the present example is a dyeing method which is easy for quality control and suitable for mass production.

Since the dyeing process can be performed by using a dyeing machine instead of manually, the dyeing time is greatly reduced, and the labor is also significantly reduced.

The washing fastness was high, and the degree of discoloration was extremely small as compared with the related art.

The unique smell of the coloring material is
When using herbs instead of rosemary, the fragrance had a feeling of ease. When the herbs used for Chinese herbal medicine were used, adsorption of Chinese herbal components was confirmed. This suggests that clothing dyed according to this example may be used in medical fields such as relieving stress and treating atopic dermatitis.

Hereinafter, an experimental result of the washing fastness will be described in detail as an example of the operation and effect of the present embodiment.

Using a dyeing step including step B and a step not including the step B, the cellulosic fiber fabric was dyed according to the present example. In addition, about the process C, the process was performed along the flowchart shown in the following Table 3.

[Table 3] The natural product for extracting the color material uses rosemary and Akane, and the powder / solvent (water) is 1% (weight / vol)
(The color is slightly darker than the conventional method). Step B
In the case of the dyeing process containing no, the color strength was poor, so the powder / solvent was 5% for rosemary and 3% for Akane.
% (See Table 4 below).

[Table 4] The washing method was performed according to the A-2 method, and the difference in discoloration and discoloration was analyzed using a gray scale and a computer.

Hereinafter, the experimental results will be described in detail.

As a result of measuring the contamination in a gray scale, it was found that before washing, the grade was 5 (excellent) in any case, but after washing, the grade was 4 (good), 1 grade (weak), and 3 grade (weak). Somewhat good), but was second grade (possible).

The results of the analysis by computer are shown in Tables 5 to 8 below. In the table, the closer the “1” mark is to S, the smaller the hue difference.

[Table 5] Table 5 shows the analysis results.

[Table 6] Table 6 shows the results of the analysis.

[Table 7] Table 7 shows the analysis results.

[Table 8] Table 8 shows the analysis results.

As described above, the results of the analysis by the computer were as follows. The results obtained by performing the step B (,) were less discolored than those obtained by not performing the step B (,).

Accordingly, it was proved that the fiber material dyed by the dyeing method according to this example had excellent washing fastness.

The inventor of the present invention has proposed, besides plant-based natural products such as herbs and rosemary, marine organisms such as animal pigments such as cochineal, swordfish, shellfish and cormorant, and inorganic and organic compounds such as clay. It has been confirmed that the fiber material can be dyed well even when experiments are performed with minerals and the like.

Further, by powdering a natural product, the dye extraction speed is increased and the dyeing speed is about 5 to 5 times that of the conventional example.
Although it was possible to achieve a deep coloration of the hue with the increase of 7 times, the fiber material dyed by the dyeing method according to the present example without pulverizing a natural product has excellent washing fastness. I was This is considered to be because the present example adds a cationizing agent, an anionic agent, and the like using an appropriate chemical and along an appropriate procedure.

In this embodiment, a cloth is used as a fiber material. Therefore, a liquid jet dyeing machine is used as the dyeing machine. However, other general dyeing machines for dyeing cloth may be used. Further, the fiber material can be dyed by using a skein dyeing machine in the case of yarn, or by using a paddle dyeing machine or a washer dyeing machine in the case of a product. Also,
Fine patterns can be hand-painted, and patterns of different colors can be partially applied according to a standard method such as hand-drawing → drying → steaming → washing → drying.

It has also been confirmed that cellulosic fibrous materials such as wood surfaces and cellophane and building materials can be dyed by the dyeing method according to the present embodiment, and are contained in natural products such as Chinese herbal components. It has been confirmed that various chemical substances are adsorbed.

In the present embodiment, the dyeing machine was dyed with hot water or water. However, when experiments were performed using seawater or hot springs (mineral springs), a unique hue different from the case using hot water or water was used. Has been confirmed, and it has been confirmed that a variety of hues can be obtained, and a fiber material having a higher commercial value can be obtained.

[0073]

According to the present invention, as described above, the dye is well adsorbed to the fiber material despite the use of a natural dye, and the practicality is excellent in the reproducibility of the dyeing degree. It is an excellent dyeing method.

In the second, third, and fourth aspects of the present invention,
Since the dyeing of the fiber material is carried out by appropriately using the chemicals and the processing steps, the dye is well adsorbed on the fiber material and the reproducibility of the degree of dyeing is excellent, the quality control is easy and the mass production is excellent, This is a very practical dyeing method with extremely high washing fastness and excellent durability.

Further, since dyeing can be carried out using a dyeing machine, the dyeing time is greatly shortened and the labor is also greatly reduced. Excellent dyeing method.

According to the fifth aspect of the present invention, the fiber material is dyed by using plant powder or the like which is easily available as a natural product. In addition, the dyeing method according to the present invention can perform natural dyeing with high productivity and mass productivity corresponding to the field of traditional natural dyeing.

Claims (5)

[Claims] 1. A dye, which is obtained by extracting a pigment from a natural product, and using the pigment, a thread, a fabric, or a sewn product composed of cellulosic fibers. A dyeing method for dyeing a fibrous material such as a non-woven fabric, wherein a natural product is
A dyeing method, comprising pulverizing the fiber material to 0 micron, dispersing the powder in an appropriate solvent, performing a filtration treatment, and using the filtered liquid as a coloring material. 2. A dyeing method for extracting a dye from a natural product, and dyeing a fiber material such as a yarn, cloth, sewn product, and non-woven fabric made of cellulosic fiber with the dye. And a water solvent such as mineral springs or seawater, then add an alkali agent such as sodium hydroxide and heat, then wash with water and neutralize with acid, and then cationizing agent and an alkali agent such as sodium hydroxide Is added and heated, and thereafter, the fiber material is treated by washing with water and neutralizing treatment with an acid, and the fiber material is dyed with a color material obtained by dispersing a natural product in an appropriate solvent. Method. 3. The dyeing method according to claim 2, wherein after dyeing the fiber material, a mordant treatment is performed by adding a copper-containing fixing agent. 4. The dyeing method according to claim 2, wherein after dyeing the fibrous material, an anionic agent is added to the fibrous material, and the fiber material is heated and held for a predetermined time. A dyeing method comprising dehydrating, drying, and performing various finishing processes. 5. The dyeing method according to claim 2, wherein the natural product is a powder of a plant, a cochineal which is an animal pigment, a powder or a clay of a marine organism such as a seaweed, a shellfish or a tengusa. A dyeing method characterized by using a powder of a mineral such as.