JP3701601B2 - Dyeing method for binding yarn and textile yarn - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention uses a binding yarn impregnated with a solution of a heat-sensitive polyacrylamide derivative that reversibly changes phase depending on temperature into hydrophilicity (low temperature) and hydrophobicity (high temperature) in the presence of water. The present invention relates to a method of dyeing textile yarn such as silk yarn, hand spun yarn, hand warp yarn and the like by increasing dyeability.
[0002]
[Prior art]
There are dyeing methods such as dyeing and printing, which are dyed in thread and bundle form. There is a way.
Solid-colored dyeing is a single color, whereas koji dyeing is most practically used as a method of dyeing in multiple colors.
[0003]
In the tapping dyeing process, the part of the pattern of the yarn bundle is tightly bound with cotton thread or rubber, and the other part called the ground is dyed. Tap on the plate and dye.
As a matter of course, the background portion has the same hue, and if four yarns are dyed together, the four hues are dyed in the same hue.
[0004]
Similarly, the color of the wrinkles that become the design pattern is dyed in the same hue if dyed simultaneously with the same dye, and the portion that becomes the pattern has the same hue and hardly changes.
If the color of the cocoon that becomes the pattern of the design increases, the process of dyeing-bundling-decoloring is repeated for the number of colors, and finally the portion other than the bundling portion is dyed by tapping. Since this process repeats dyeing-bundling-decoloring, even if the work is carried out carefully with great care, the kite string is susceptible to damage such as flaking and splitting.
[0005]
Further, the strength of binding the yarn bundle varies from person to person, and even for the same person, the binding strength differs depending on the expansion and contraction of the yarn due to temperature and humidity during operation. If the binding strength is different, uniform dyeing cannot be performed. Therefore, it is necessary to perform dyeing while adjusting the number of times the yarn bundle is struck depending on the individual binding conditions. For this reason, it is very difficult to stain wrinkles.
[0006]
For pattern printing, the yarn is glued in advance, the yarn is spread to a predetermined length and width on the printing stand, and the printing paste is squeezed from the pattern paper cut out of the design pattern for each hue. Printing, drying, steaming, soaping, washing with water and drying. As described above, the paper pattern is produced for each hue, and each paper pattern is not allowed to be slightly out of order. Therefore, specialized techniques are required, and the cost and labor required for production are large.
[0007]
In addition, since the production of pattern paper requires appropriate equipment and cost, if you do not process a lot of lots with one pattern, you will not pay for the pattern production. It has become a trend.
Of course, selection of dyes and auxiliaries to be applied in textile printing is also an important factor, and skilled skills and techniques are required, and a large work space is naturally required.
[0008]
[Problems to be solved by the invention]
As already mentioned, when dyeing multi-colored patterns that become wrinkles on silk, hand-spun and hand-drawn yarns, the dyeing-bundling-decoloring process is repeated, and the ground part is dyed last. The ground part is dyed in the same hue because it is dyed all at once.
In addition, the batch dyeing of eyelids is naturally dyed in the same hue, and the same hue and the background color Yuki are made several times, hindering the sale of luxury products Yuki, and the image There is a risk of damage.
[0009]
On the other hand, even in the case of producers, who are forced to produce a very small number of production reciprocals, the work time does not change much between two and six.
However, life cannot be realized if the minimum processing fee cannot be secured. As a matter of course, it is natural for distributors and kimono enthusiasts to desire a different Yuki tsumugi, and for both producers and enthusiasts, the production quantity of one lot is contradictory.
Although small quantities and many varieties are not limited to the Yuki candy industry, it was impossible to produce Yuki potatoes that differed from each other according to the conventional production method and the position of the producer.
[0010]
Persons who tie or dye the cocoons need experience and tips, and it takes a long time for the tying work, and there is a problem that the inside of the tying is polluted and the dye used is limited . In particular, when dyed with natural dyes, the dyes have high penetrability and dye transfer properties and contaminate the stain-resistant part. In addition, there are too many problems and problems such as the magnitude of damage to the yarn from repeated dyeing and decoloring, labor and time required for each process, and poor change.
For these reasons, with conventional methods, wrinkle dyeing sometimes ends up being labored, and there is an urgent need to solve problems in the production area.
[0011]
In the present invention, in view of the problems of the conventional dyeing method for textile yarn, it is applied to the conventional dyeing dyeing method and the knocking dyeing method, both of which are plain dyeing, stripe dyeing, and anti-dyeing in the wrinkle preparation process. It is an object of the present invention to provide a method for dyeing a yarn for textiles, which can reliably carry out a fine pattern and weave a fine pattern. Furthermore, it is possible to dye various colors in one bath, and it is intended to enable various dyeing while reducing work labor.
[0012]
[Means for Solving the Problems]
The present inventors have studied a means for improving the dye-resisting property of the binding yarn, dyeing various yarns and yarn bundles having different shapes made of silk, and simultaneously preventing them from being contaminated by others. Went. As a result of this examination, the present invention has developed a binding yarn having improved dye resistance by impregnating the yarn with an aqueous solution of a heat-sensitive polyacrylamide derivative and drying it. Using this tie yarn, yarns of various shapes made of silk are dyed, and at the same time, multicolor dyeing is possible in one bath.
[0013]
The binding yarn according to the present invention is impregnated with a solution containing as a main component a thermosensitive polyacrylamide derivative that undergoes a phase transition to a hydrophobic state at a high temperature above the transition temperature in a coexistence with water, and a hydrophilic phase at a low temperature below the transition temperature. Is.
Further, the dyeing method for textile yarn according to the present invention binds the yarn or yarn bundle to be dyed with the above-described binding yarn, and the temperature-sensitive polyacrylamide derivative exhibits a hydrophilicity or lower than its transition temperature. Immerse them in the dyeing solution, then heat the dyeing solution, and dye the bundled yarn or yarn bundle by heating the dyeing solution to a temperature above its transition temperature at which the thermosensitive polyacrylamide derivative exhibits hydrophobicity. Is.
[0014]
In the process of heating the dyeing solution in a state where the yarn or yarn bundle wrapped with the binding yarn impregnated with an aqueous solution of a heat-sensitive polyacrylamide derivative is immersed in a low-temperature dyeing solution during dyeing, the heat-sensitive polyacrylamide type is heated. Derivatives change from hydrophilic to hydrophobic. At this time, penetration into the binding yarn and improvement in waterproofness occur sequentially, and the binding yarn has excellent dyeing resistance. For this reason, there is no color permeation at the time of dyeing in the portion where the yarn or yarn bundle is tied up with the above-mentioned tied yarn, and precise dyeing becomes possible. Finally, by washing with water at room temperature, the thermosensitive polyacrylamide derivative exhibits hydrophilicity and can be easily washed off.
[0015]
Furthermore, in the dyeing method according to the present invention, after a part or all of a plurality of fabric yarns to be dyed in advance are treated by immersing them in different mordants, the dyeing is carried out by forming a bundle of yarns or casks with the binding yarns. It can also be done. Yarns and yarn bundles treated by immersing in different mordants can be dyed at the same time using the same dye, so that different colors and tones can be obtained.
[0016]
Further, when the dye for dyeing the fabric yarn is a natural dye, the dye is diffusing and penetrating so that the color is apt to infiltrate into the constricted part. Therefore, by adding at least one of sodium sulfate and acetic acid to the dyeing solution, the diffusibility and penetrability of the dye are reduced and the affinity is increased, so there is no penetration of the dye into the binding part, Reliable dyeing of unbundled parts is possible.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described specifically and in detail.
In the present invention, the binding yarn is impregnated with a solution of a thermosensitive polyacrylamide derivative that reversibly transfers to hydrophobicity at high temperature and hydrophilicity at low temperature in the state of coexisting with water. Cotton yarn is usually used as the binding yarn.
[0018]
As the above-mentioned heat-sensitive polyacramide-based derivative, those which transfer in response to a change in temperature sensitively and exhibit non-stickiness after transfer at a high temperature are preferable. However, among the heat-sensitive polyacramide derivatives, PVA partially saponified products, polyethylene oxide, polyvinyl methyl ether, or polyacrylamide derivatives formed by polymer reaction are not preferable.
[0019]
The heat-sensitive polyacramide derivative is a polymer homopolymer or copolymer of the following acrylamide vinyl compound. Specifically, N-ethylacrylamide, N-isopropylacrylamide, Nn-propylacrylamide, Nn-propylmethacrylamide, N-cyclopropylacrylamide, N, N-diethylacrylamide, N-methyl- N-ethylacrylamide, N-methyl-Nn-propylacrylamide, N-methyl-N-isopropylacrylamide, N-acryloylpyrrolidine, N-acryloylpiperidine, N-tetrahydrofurfurylacrylamide, N-methoxypropylacrylamide, N- Methoxypropyl methacrylamide, N-ethoxypropyl acrylamide, N-ethoxypropyl methacrylamide, N-isopropoxypropyl acrylamide, N-isopropoxypropyl methacrylamide, N Ethoxyethyl acrylamide, N-ethoxyethyl methacrylamide, N-1-methyl-2-methoxyethyl acrylamide, N-1-methyl-2-methoxyethyl methacrylamide, N-1-methoxymethylpropyl acrylamide, N-1-methoxy Methylpropyl methacrylamide, N- (2,2-dimethoxyethyl) -N-methylacrylamide, N- (1,3-dioxolan-2-yl) acrylamide, N-8-acryloyl-1,4-dioxa-8- Other spiro [4,5] decane can be listed. Each of these vinyl compound homopolymers has a unique transition temperature.
[0020]
Further, the heat-sensitive polyacramide derivative may be a copolymer of the acrylamide vinyl compound and another copolymerizable vinyl compound used as the second component. Examples of these vinyl compounds include hydrophilic vinyl compounds (excluding the aforementioned acrylamide vinyl compounds), ionic vinyl compounds, lipophilic vinyl compounds, and the like, and one or more of these can be used.
[0021]
Examples of the hydrophilic vinyl compound include N-methylol acrylamide, N-methylol methacrylamide, acrylamide, methacrylamide, N-methyl acrylamide, N, N-dimethyl acrylamide, acryloyl morpholine, diacetone acrylamide, hydroxyethyl acrylate, hydroxypropyl. Examples thereof include acrylate, hydroxypropyl methacrylate, N-methoxyethyl acrylamide, N-methoxyethyl methacrylamide, N-methoxypropyl methacrylamide, 2-methyl-5 vinyl pyridine, N-vinyl-2-pyrrolidone and the like.
[0022]
Examples of the ionic vinyl compound include acrylic acid, methacrylic acid, 2-acrylamido-2-methyl-1-propanesulfonic acid, styrenesulfonic acid, and salts thereof, N, N-dimethylaminoethyl acrylate, N, N- Mention may be made of amines such as dimethylaminoethyl methacrylate, N, N-diethylaminoethyl acrylate, N, N-diethylaminoethyl methacrylate, N, N-diethylaminopropylacrylamide, N, N-diethylaminopropylmethacrylamide and their salts.
[0023]
Examples of the lipophilic vinyl compound include Nn-butylacrylamide, Nn-butylmethacrylamide, N-sec-butylacrylamide, N-sec-butylmethacrylamide, N-tert-butylacrylamide, N-tert- N-alkylacrylamide derivatives such as butylmethacrylamide, Nn-hexylacrylamide, Nn-hexylmethacrylamide, acrylate derivatives such as ethyl acrylate, ethyl methacrylate, butyl acrylate, butyl methacrylate, glycidyl methacrylate, acrylonitrile, vinyl chloride, Examples thereof include styrene and α-methylstyrene.
The copolymerization ratio of the vinyl compound used as the second component is usually 90 mol% or less, preferably 60% or less, based on the combination of these vinyl compounds.
[0024]
In general, the transition temperature of a heat-sensitive copolymer aqueous solution can be controlled by the type, combination, and composition ratio of vinyl compounds as constituent units. In that case, in a copolymer formed of two or more types of vinyl compounds in which the homopolymer is heat-sensitive, additivity is often established between the transition temperature of each homopolymer and its composition ratio.
[0025]
In the case where one or more homopolymers are copolymerized with one or more vinyl compounds that are thermosensitive and one or more other non-thermosensitive vinyl compounds that can be copolymerized, the copolymer is water-soluble by introducing these vinyl compounds. In general, the introduction of a hydrophilic vinyl compound tends to lower the transition temperature. The introduction of a large amount of lipophilic vinyl compound makes the copolymer water insoluble.
[0026]
In preparing an aqueous solution of a thermosensitive polyacrylamide derivative, the concentration of the thermosensitive polyacrylamide derivative varies depending on the type and molecular weight of the polymer used. For example, an aqueous solution of poly-N-isopropylacrylamide (hereinafter referred to as “polyNIPAM”) having a molecular weight of about 300,000 is 10 to 30%, preferably about 25%, and a polyNIPAM having a molecular weight of about 1,000,000 is 3 -10%, preferably about 5%.
[0027]
In preparing such an aqueous solution, a heat-sensitive polyacrylamide derivative may be used alone, or two or more different heat-sensitive polyacrylamide derivatives may be mixed and used. Furthermore, you may mix | blend 3rd components, such as various salts and surfactant, as needed. In this case, it should be noted that the transition temperature generally decreases or increases depending on the type and amount of the third component, as compared with a single aqueous solution of the thermosensitive polyacrylamide derivative, by blending these third components. That is, such a viscous aqueous solution of a thermosensitive polyacrylamide derivative has an inherent transition temperature determined by preparation conditions.
[0028]
A binding yarn such as cotton yarn is immersed and impregnated in an aqueous solution under such temperature conditions as to exhibit hydrophilicity below the transition temperature of such a heat-sensitive polyacrylamide derivative, specifically at room temperature. Under a temperature condition in which the heat-sensitive polyacrylamide derivative is hydrophilic, an aqueous solution of the heat-sensitive polyacrylamide derivative is soaked and impregnated deep into the fibers of the binding yarn. Thus, the binding yarn is sufficiently impregnated with an aqueous solution of a heat-sensitive polyacrylamide derivative and then dried.
[0029]
Then, this dried tie yarn is used to tie the yarn to be partially dyed or the portion to be dye-proofed of the yarn bundle. In this state, the heat-sensitive polyacrylamide derivative is immersed in a dyeing liquid having a hydrophilicity not higher than its transition temperature, and then the dyeing liquid is heated, so that the dyeing liquid is higher than the transition temperature of the heat-sensitive polyacrylamide derivative. By raising the temperature to a temperature showing hydrophobicity, the bundled yarn or yarn bundle is dyed.
[0030]
The binding yarn, which combines the above-mentioned heat-sensitive polyacrylamide derivative that exhibits hydrophobicity at high temperatures and the characteristics of cotton yarn that shrinks with hot water, prevents the entry of dye from the outside by tightly binding the portion to be dyed. . The heat-sensitive polyacrylamide derivative adhering to the binding yarn starts to dissolve in the dyeing solution showing hydrophilicity below the transition temperature, and the heat-sensitive polyacrylamide derivative starts to dissolve between the continuous binding yarn and the binding yarn. Elute and fill in small gaps. Since the elution is similarly performed in the parallel direction of the yarn bundle, the binding yarn and the yarn bundle are in close contact with each other at the beginning and the end of the binding yarn. Next, when the dyeing solution is heated and heated, and the heat-sensitive polyacrylamide derivative reaches a transition temperature or higher, it becomes a rubbery and sticky surface form and exhibits hydrophobicity. In this state, the heat-sensitive polyacrylamide derivative covers the surface of the binding yarn and exhibits a strong anti-dyeing performance.
[0031]
In addition, various yarns made of silk and having different yarn-making methods were pretreated with chromium acetate, aluminum acetate, iron acetate, titanium, sodium stannate, and copper acetate as mordants, and then each treated yarn was cassette-processed. Dye in one shape or a bundle of yarns and dye in one bath of natural dye liquid of one kind and one color at the same time. By doing so, even if yarns and yarn bundles treated by immersing in different mordants are dyed at the same time using the same dye, different colors and colors can be obtained, so that they can be dyed in multiple colors.
[0032]
Furthermore, in dyeing natural dyes, by adding acetic acid and sodium sulfate as auxiliary agents in the dyeing bath, the diffusibility, penetrability, and transferability of the dyes are suppressed, and fine and precise folds unique to Yuki are dyed. be able to.
Acetic acid added as an auxiliary agent promotes the coloring and fixing of the dye to the yarn, and among the heat-sensitive polyacrylamide derivatives, it lowers the transition temperature of poly NIPAM from 31 ° C. to 26.5 ° C. It can be dyed from the temperature, and when dyeing by gradually raising the dyeing temperature, it works effectively as a measure to prevent spotting.
In addition, sodium sulfate added as an auxiliary agent binds to the dye particles, and the dye particles become larger, so that the penetration and diffusion of the dye into the yarn bundle is reduced and the dye transfer property is also suppressed.
[0033]
If you try to resist only with a binding yarn impregnated with an aqueous solution of a heat-sensitive polyacrylamide derivative, natural dyes with good diffusion and permeability will penetrate into the wrinkles during strong and intense tapping. Since it is contaminated, it cannot be finely stained. Slightly wide lacing, simple wrinkles with little tapping and swallowing work, and dyeing of a kind called rough wrinkles in the production area are possible.
[0034]
In addition, as for the binding yarn, the currently used cotton yarn is used as it is, and only dyeing aids of acetic acid and sodium sulfate are used. Cannot be covered, and even wide dyeing is impossible. This is a dyeing method capable of treating only the knot yarn with a heat-sensitive polyacrylamide derivative solution, adding a dyeing assistant of acetic acid and sodium sulfate to the dyeing bath, and gradually raising the temperature from a low temperature.
[0035]
By using a binding yarn made of cotton yarn impregnated with a solution of heat-sensitive polyacrylamide derivatives, it exhibits hydrophobicity and resistance to thermal and physical stimuli, while it is hydrophobic and resistant to low temperature baths. Does not show much sex. That is, the surface film of the heat-sensitive polyacrylamide derivative that has been physically dyed can be removed by washing with water when various processes such as flapping and ground color dyeing are completed. From this, it will not interfere with the unraveling after dyeing and the subsequent processes.
[0036]
【Example】
Next, examples of the present invention will be described specifically and in detail.
(Example 1)
To 30 parts of a thermosensitive polymer polyvinyl methyl ether 30% aqueous solution (Tokyo Chemical Industry, Reagent) and poly NIPAM mixed at 7: 3, add 100 parts of water, stir well, did. This treatment solution is put into a stainless bowl in an amount of 10 times the weight of unbleached cotton yarn (No. 6), dipped in unbleached cotton yarn at room temperature, squeezed to the average, and then naturally dried in the laboratory. This was prepared as a binding thread.
[0037]
Next, 6 sets of about 2.5 g / 1 case of hand-spun (silk, 160 denier) were prepared. A mordant, chromic acetate (Wako Pure Chemical Industries, Reagent) was dissolved in 10% of the yarn weight and 0.25 g in 50 ml of water. It was immersed for 30 minutes, squeezed to the average, washed with water, and then naturally dried in the laboratory.
[0038]
Similarly, aluminum acetate (Kanto Chemical Co., Reagent) 10%, 0.25 g, copper acetate (Kanto Chemical Co., Reagent) 20%, 0.5 g, wood acetate (Tanaka direct dye store, industrial chemicals) 40%, 1 ml, Titanium undiluted solution (Tanaka direct dye store, industrial chemicals) 40%, 1ml each is dissolved in 50ml of individual water, and each hand spun silk casket is soaked separately for each mordant at room temperature for 30 minutes and squeezed to the average After washing with water, it was naturally dried in the laboratory.
[0039]
Next, 6 pieces of yarn mordanted separately with each mordant were bundled together with the tie yarn. 6% Shibuki B solution (Tanaka Nao Dye Store, liquid vegetable dye) of 40% with respect to the yarn weight is dissolved in 450 ml of water to form a dyeing solution, and the bundled yarn bundle is immersed in this dyeing solution. After dyeing was started, the temperature was gradually raised and the dyeing was performed at a temperature of 90 ° C. for 30 minutes, followed by dehydration, washing with water, and natural drying.
[0040]
At this time, it was observed that the hues of the 6-set yarns mordanted with each mordant liquid were dyed in 6 different colors. The chrome acetate mordanting is brownish yellow, the aluminum acetate mordanting is slightly brownish, the copper acetate mordanting is brown, the wood acetate iron mordanting is greenish amber, and the titanium stock solution It was observed that the mordanting dyed a strong reddish brown, and the mordanting citric acid and sodium stannate dyed a bright yellow.
[0041]
Next, the yellow casserole with tea tasting with each mordant is chrome acetate, the yellow casserole with a slight tea taste is aluminum acetate, the brown casserole with copper acetate, and the greenish amber casserole with wood acetate Iron, strong reddish brown casserole is a titanium stock solution, and bright yellow cassette is individually mordanted with citric acid and sodium stannate. Tie 10 places in the width of 1, 2, 5 and 10 mm each with the treated tie yarn, 12 ml of catechu (Tanaka Nao Dye Store, liquid plant dye), 1 ml of acetic acid (Kanto Chemical, reagent), sodium sulfate (Kanto Chemical, reagent) ) 7.5 g was dissolved in 450 ml of water and used as a dyeing solution. Dyeing was started at 20 ° C., and the temperature was gradually increased, followed by dyeing at 90 ° C. for 30 minutes.
[0042]
In the middle of dyeing, at temperatures of 30, 50, 70, and 90 ° C., the fine part is penetrated 60 times for each temperature, the fine part is 50 times, and the wide part is 30 so that the dye solution permeates while being bundled. I put on rubber gloves and swallowed it by hand. Thereafter, it was dehydrated, washed with water, dehydrated, and naturally dried. After that, the binding yarn was unwound.
At this time, unraveling of the binding yarn can be easily performed, and it is observed that the portion dyed with the Shibuki B solution is clearly colored and dyed differently in six colors mordanted with each mordant solution. It was done.
[0043]
On the other hand, the chromic acetate mordanting part dyed the ground with catecheus solution is brown, the aluminum acetate mordanting part is slightly reddish brown, and the copper acetate mordanting part is reddish brown. The iron mordanting part is dyed brownish, the titanium stock solution is tinged with yellowish brown, and the mordanting part of citric acid and sodium stannate is dyed yellowish brown. Was observed.
[0044]
(Comparative Example 1)
In Example 1 above, a heat-sensitive polymer, two types of aqueous solutions, and untreated unbleached cotton yarn, unadded with acetic acid and sodium sulfate added at the time of dyeing with catechu of the ground part, Others were the same as in Examples, and mordanting, water washing, dyeing, mordanting, binding, dyeing, washing, dehydration, drying, and unwinding of the binding yarn were performed in the same manner.
[0045]
At this time, the dye of the catechu penetrates from above the bundled yarn and from the horizontal direction of the yarn bundle, the part that becomes a wrinkle is contaminated, and the surface that is tied to 1 mm and 2 mm width hardly remains as wrinkles, The inside of the yarn bundle was observed to be felt as a slight cocoon.
That is, the dyed portion that becomes a wrinkle is almost contaminated and does not become a wrinkle pattern, indicating that it cannot be used.
[0046]
(Example 2)
In Example 1, the dye and Shibuki B liquid were replaced with Enju (Tanaka direct dye store, liquid vegetable dye), and catechu was replaced with rack die (Tanaka direct dye store, liquid vegetable dye), respectively, in the same manner as in Example 1, The mordanting, rinsing, dyeing, mordanting, binding, dyeing, washing, drying, and unwinding were performed in the same manner.
[0047]
At this time, it is easy to unravel the binding yarn, and it is observed that the color of the wrinkled portion is dyed with the Enju liquor as it is, and is dyed differently in each of the 6 mordanted colors. It was done.
Chromium acetate mordanting is greenish yellow, aluminum acetate mordanting is clear yellow, copper acetate mordanting is yellowish green, wood acetate iron mordanting is khaki, and titanium stock mordanting is toki. In the mordanting of citric acid and sodium stannate, it was observed that each was dyed creamy.
[0048]
On the other hand, the chromic acetate mordanting part stained with rack die is slightly bluish purple, the aluminum acetate mordanting part is slightly reddish purple, and the copper acetate mordanting part has a strong tea taste. Purple, reddish amber at the mordanted portion of iron acetate, clear purple at the mordanted portion of the titanium stock solution, and a slightly yellowish red at the mordanted portion of citric acid and sodium stannate It was observed.
[0049]
(Comparative Example 2)
In Example 2, except that the binding yarn treated with the thermosensitive polymer and two kinds of aqueous solutions was unbleached and replaced with cotton yarn, in the same manner as in Example, mordanting, water washing, dyeing, mordanting, binding, dyeing, Washing with water, drying, and unwinding were performed in the same manner.
[0050]
At this time, the dye of the rack die penetrates from above the bundled yarn and from the horizontal direction of the yarn bundle, and the portion that becomes the wrinkle is contaminated, and the surface of the 1 mm and 2 mm widths hardly remains as wrinkles. The inside of the yarn bundle was slightly observed as a cocoon of about half the width.
The surface with a width of 5 mm and 10 mm was scarcely left as wrinkles, and the inside of the yarn bundle was slightly observed as wrinkles about two-thirds of the width. That is, the dyed part that becomes a wrinkle is almost contaminated and does not have a wrinkle pattern, indicating that it cannot be used.
[0051]
(Example 3)
In Example 1, the dye and Shibuki B solution were replaced with tangara (Tanaka direct dye store, liquid vegetable dye), and catechu was replaced with Koganebana (Tanaka direct dye store, liquid plant dye). Washing, dyeing, mordanting, binding, dyeing, washing, drying, and unwinding of the binding yarn were performed in the same manner.
[0052]
At this time, it is easy to unravel the binding yarn, and it is observed that the color of the wrinkles is dyed with tangara and is dyed differently in six colors mordanted with each mordant liquid. It was.
Chromium acetate mordanting is slightly reddish brown, aluminum acetate mordanting is beige, copper acetate mordanting is brown, iron acetate mordanting is reddish amber, titanium stock mordanting is yellow It was observed that the mordanting of citric acid and sodium stannate stained a light brown color with a brownish taste.
[0053]
On the other hand, the ground part was stained with Koganebana, the chromic acetate mordanted part is slightly brownish yellow, the aluminum acetate mordanted part is slightly reddish yellow, and the copper acetate mordanted part has a strong tea taste In yellow, the mordanted part of iron acetate is dyed greenish green, the mordanted part of the titanium stock solution is reddish yellow, and the mordanted part of citric acid and sodium stannate is dyed creamy. Was observed.
[0054]
(Comparative Example 3)
In Example 3, the mordanting, water washing, dyeing, mordanting, binding, dyeing, water washing, and drying were carried out in the same manner as in Example except that acetic acid and sodium sulfate added at the time of dyeing with Koganebana were not added. The unwinding was performed in the same manner.
[0055]
At this time, the dye of Koganebana penetrates slightly from the top of the bundled yarn, and from the horizontal direction of the yarn bundle, the dye penetrates considerably, contaminating the wrinkled part, and the width becomes 1 mm and 2 mm. Observed as a wrinkle about half the width of the bundle because the surface of the bundle is quite penetrating in the horizontal direction of the yarn bundle (commonly referred to as a headband in the production area) as if a line was drawn in the vertical direction of the yarn bundle. It was done.
The surface bound to a width of 5 mm and 10 mm was contaminated in a headband shape, and the inside of the yarn bundle was observed as wrinkles about 3/4 of the width of the neck. That is, the dyed part that becomes a wrinkle is considerably contaminated, and does not have a wrinkle pattern, indicating that it cannot be used.
[0056]
【The invention's effect】
As described above, the binding yarn according to the present invention and the method for dyeing textile yarn using the same can be woven into a fine pattern by reliably performing plain dyeing, stripe dyeing, and anti-dyeing in the wrinkle production process. A yarn dyeing method can be provided. Furthermore, it is possible to dye various colors in one bath, and various dyeings can be made while reducing work labor.

Claims (4)

A thread characterized by being impregnated in a yarn with a solution of a thermosensitive polyacrylamide derivative that undergoes a phase transition to a hydrophobic state at a high temperature above the transition temperature and hydrophilic at a low temperature below the transition temperature. yarn. A tie yarn made by impregnating a yarn with a solution of a heat-sensitive polyacrylamide derivative that undergoes a phase transition to a hydrophobic state at a high temperature above the transition temperature and hydrophilic at a low temperature below the transition temperature in the state of coexisting with water. Bind the parts of the yarn to be dyed, immerse the dye in a dye solution having a temperature equal to or lower than the transition temperature at which the heat-sensitive polyacrylamide derivative is hydrophilic, then heat the dye solution, and use the heat-sensitive polyacrylamide-based dye solution. A method for dyeing textile yarn, characterized in that the yarn or yarn bundle is dyed by raising the temperature to a temperature equal to or higher than the transition temperature at which the derivative exhibits hydrophobicity. A part or all of a plurality of fabric yarns to be dyed in advance are treated by immersing them in different mordants, and then the yarn is bundled or bundled together with the binding yarn and dyeing is performed. 2. A method for dyeing a textile yarn according to 2. 4. The dyeing of textile yarn according to claim 2 or 3, wherein the dye for dyeing the textile yarn is a natural dye, and at least one of sodium sulfate and acetic acid is added as an auxiliary agent to the dyeing solution. Method.