JP2003064543A - Indigo-toned multicolor dyeable yarn, indigo-toned multicolor dyeable cloth, and method for producing yarn having indigo-toned multicolor effect - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide indigo-toned multicolor dyeable yarn composed of multi- component yarn which is given by using an acrylic fiber as a raw material, to provide an indigo-toned multicolor dyeable cloth obtained from the yarn, and to provide a method for effectively producing yarn having an indigo-toned multicolor effect. SOLUTION: This indigo-toned multicolor dyeable yarn is obtained by subjecting slubbing formed out of a raw fiber (A) and the other slubbing formed out of a raw fiber (B) to a fine twisting process so as to form fine twisted union yarn, wherein the raw fiber (A) comprises a cationic dyestuff-dyeable acrylic staple fiber and the raw fiber (B) is prepared by mixing an acidic dyestuff-dyeable acrylic staple fiber and an acidic dyestuff-dyeable fiber having a hot-water shrinkage percentage of <=3%, when measured after treated with hot water of 100 deg.C for 10 min, in a weight ratio of 3:7 to 7:3. The indigo-toned multicolor dyeable cloth is produced by using the yarn. The method for producing the yarn having the indigo-toned multicolor effect comprises dyeing the fine twisted union yarn by using a cationic dyestuff and an acidic dyestuff.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a yarn capable of being dyed with an indigo tone of different colors, a fabric capable of being dyed with an indigo tone of a different color, and a method for producing a yarn having an indigo tone of a different color effect.

[0002]

2. Description of the Related Art Conventionally, there are composite yarns made of fibers including acrylic fibers, which are dyed in the same color and in a different color in a heather tone, but not in different colors in an indigo tone.

There are other materials dyed to have an indigo tone discoloration effect, but the dyeing method is such as space dyeing in which raw materials are dyed and yarns are partially dyed in the longitudinal direction. This is a complicated method.

[0004]

DISCLOSURE OF THE INVENTION The present invention is a composite yarn made of a fiber containing acrylic as a raw material, which is capable of being dyed in indigo tone of different colors, a fabric which can be dyed in indigo tone of different colors, and an indigo tone. It is a main object to provide a method capable of efficiently producing a yarn having a different color effect.

[0005]

Means for Solving the Problems In order to achieve the above-mentioned object, the present inventor has conducted extensive research and found the following findings. That is, in order to impart an indigo tone color-difference effect to a composite yarn made from acrylic fiber, the morphology of the yarn is such that a crocheted yarn made of acrylic staple fiber raw cotton (A) dyeable with a cationic dye and an acid dye dyeable dye Mixed raw cotton of acrylic staple fiber and acid dye dyeable fiber (for example, wool, acid dye dyeable acrylic fiber, nylon fiber) having a hot water shrinkage of 3% or less when treated with hot water of 100 ° C. for 10 minutes. It is effective to make a finely spun twisted yarn obtained by finely spinning the roving composed of (B). Raw cotton (A) and raw cotton (B) in this spun yarn
And the difference in dyeing property to the cationic dye and the acid dye, and the shrinkage ratio of the acrylic fiber in the raw cotton (B) and the hot water shrinkage when treated with hot water of 100 ° C. such as a wool raw material for 10 minutes. An indigo tone discoloration effect can be obtained by dyeing with a cationic dye and an acid dye by taking advantage of the difference in dyeability with an acid dye dyeable fiber of 3% or less. At least one of the acrylic dye fiber dyeable with a cationic dye of the raw cotton (A) and the acrylic staple fiber dyeable with an acid dye of the raw cotton (B) is used as a mixed raw material of two kinds of acrylic staple fibers having different hot water shrinkage rates. As a result, since each fiber in the raw cotton (A) and / or each fiber in the raw cotton (B) shrinks to different degrees by the hot water treatment during the dyeing process, a more excellent indigo tone different color effect is obtained, and Bulkiness is obtained. Further, by making the fineness of the cationic dye-dyeable acrylic staple fiber in the raw cotton (A) different from the fineness of the acid-dyeable acrylic staple fiber in the raw cotton (B), a more excellent indigo tone different color is obtained. The effect is obtained.

The present invention is based on the above findings,
Provided are a thread capable of being dyed with an indigo tone of different colors, a fabric capable of being dyed with an indigo tone of a different color, and a method for producing a yarn having an indigo tone of a different color effect. Item 1. Acrylic staple fiber dyeable with cationic dye, roving made of raw cotton (A), acid dye dyeable acrylic staple fiber, and acid dye having a hot water shrinkage ratio (by treatment at 100 ° C. hot water for 10 minutes) of 3% or less. An indigo dyeable dyeable yarn obtained by a fine spinning intertwisting method from a roving yarn made of a mixed raw cotton (B) mixed with a dyeable fiber in a mass ratio of 3: 7 to 7: 3. Item 2. Item 2. The hot water shrinkage rate (by treatment at 100 ° C hot water for 10 minutes) of at least one of the cationic dye dyeable acrylic staple fiber and the acid dye dyeable acrylic staple fiber is 8 to 25%. Indigo-like yarn that can be dyed in different colors. Item 3. The acrylic staple fibers in at least one of the raw cotton (A) and the raw cotton (B) have different hot water shrinkage rates (due to 10 minutes of hot water treatment at 100 ° C.) 2
Item 3. The yarn capable of being dyed with an indigo tone different color effect according to Item 1 or 2, which is a mixture of more than one kind of acrylic staple fiber. Item 4. Item 4. The indigo-like color-dyeable yarn according to item 1, 2 or 3, wherein the spinning-twisting ratio of the raw cotton (A) and the raw cotton (B) is 3: 7 to 7: 3. Item 5. An indigo tone different color dyeable fabric produced using the yarn according to any one of Items 1 to 4. Item 6. Item 5. A method for producing a yarn having an indigo tone discoloration effect, which comprises dyeing the yarn according to any one of Items 1 to 4 with a cationic dye and an acid dye.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in detail below.

The indigo tone different color dyeable yarn of the present invention is
Acrylic staple fiber dyeable with cationic dye, roving made of raw cotton (A), acid dye dyeable acrylic staple fiber, and acid dye having a hot water shrinkage ratio (by treatment at 100 ° C. hot water for 10 minutes) of 3% or less. It is a yarn obtained by a spinning and twisting method from a roving yarn composed of raw cotton (B) mixed with a dyeable fiber.

In the case of a composite yarn of acrylic fiber and wool or the like, when a mixed spun yarn or an ordinary twisted yarn is used, it is difficult to obtain an indigo tone discoloration effect. Different color effect can be obtained.

Acid dye dyeable fibers having a hot water shrinkage of 3% or less when treated with hot water at 100 ° C. for 10 minutes are
Particularly, a low shrinkable fiber which can be dyed with an acid dye and has a hot water shrinkage of 3% or less (including a hot water shrinkage of 0%, that is, no shrinkage at all) Not limited. Examples of such acid dye dyeable fiber include wool, acid dye dyeable acrylic fiber and nylon fiber. When an acrylic staple fiber is used as the acid dye dyeable fiber having a hot water shrinkage of 3% or less, the other acid dye dyeable acrylic staple fiber which has the dyeing property for the acid dye and constitutes the raw cotton (B) Is preferably different from.

Method for producing each roving yarn A roving yarn made of an acrylic staple fiber raw cotton (A) dyeable with a cationic dye is prepared by subjecting the raw cotton (A) to opening, carding, top, gilling, roving, etc. according to a conventional method. Is obtained by Further, it is composed of a raw cotton (B) mixed with an acid dye dyeable acrylic staple fiber and an acid dye dyeable fiber having a hot water shrinkage ratio (by treatment with hot water of 100 ° C. for 10 minutes) of 3% or less such as wool. The roving is obtained by mixing a sliver made of acrylic staple fiber dyeable with an acid dye and a sliver made of the fiber dyeable with an acid dye described above such as wool. The sliver made of acrylic dye fiber dyeable with acid dye is obtained by subjecting the acrylic staple fiber dyeable with acid dye to opening, carding, top, gilling, roving, and the like according to a conventional method. The sliver made of wool can be obtained by subjecting raw wool of wool to washing, carding, gilling, combing, backwashing, pre-spinning and the like according to a conventional method. Wool can be both worsted and woolen.

Spinning twist ratio of raw cotton (A) and raw cotton (B) In the indigo tone different color dyeable yarn of the present invention, the fine spinning twist ratio of raw cotton (A) and raw cotton (B) is particularly Although not limited, the mass ratio is preferably about 3: 7 to 7: 3. It is more preferably about 4: 6 to 6: 4, and particularly preferably 5: 5.

Spun spinning twisted yarn Further, the fineness of the yarn of the present invention capable of being dyed in a different color is
Although it is not particularly limited, it is preferable that the metric count is 10 or finer. The lower limit of the fineness of the yarn (fineness of the thinnest yarn) is not particularly limited as long as it can be produced by the spinning and twisting method, but is, for example, about metric count of 48 count. The fineness of the yarn is more preferably about 14 to 18 in metric count.

The twisting coefficient of the indigo-tone dyeable yarn of the present invention is not particularly limited, but is usually about 40 to 80, preferably about 55 to 60. The twist coefficient is a coefficient calculated by the following formula.

Twisting coefficient = number of twists per 1 m / square root of the number of meters The indigo-tone dyeable yarn of the present invention may be either a single yarn or a plied yarn, but is preferably a plied yarn. In the case of the plied yarn, it is particularly preferable that it is a twin yarn obtained by plying two or more single yarns having a fineness within the above range, and particularly two ply yarns.

Constituent Fibers of Each Raw Cotton Examples of the cationic dye-dyeable acrylic fibers constituting the raw cotton (A) include fibers such as Exlan, Casimirone, Acrylan, Creslan, Zefuran and Berel under the trade name.

Examples of the acrylic dye dyeable acrylic fiber constituting the raw cotton (B) include trade names such as Exlan H and Beslon Color Ace. In addition, when the acrylic staple fiber is used as the acid dye dyeable staple fiber, the hot water shrinkage rate (by treatment with hot water at 100 ° C. for 10 minutes) of the raw cotton (B) is 3% or less. As the acrylic acrylic fiber, the same fiber can be exemplified.

The above-mentioned cationic dye-dyeable acrylic staple fiber and acid dye-dyeable acrylic staple fiber (hot water shrinkage ratio (10) constituting the raw cotton (B))
3% or less of the acid dye dyeable acrylic staple fiber when the acrylic dye fiber is used as the acid dye dyeable fiber. Although the staple length in () is not particularly limited, it is preferably about 70 to 140 mm. More preferably, it is about 76 to 127 mm. The fineness of each staple fiber will be described later.

Cationic dye dyeable acrylic staple fiber in the raw cotton (A) and acid dye dyeable acrylic staple fiber in the raw cotton (B) (the hot water shrinkage rate (at 100 ° C. hot water) constituting the raw cotton (B) When the acrylic staple fiber is used as the acid dye-dyeable fiber having a concentration of 3% or less), the cross-sectional shape of the acid dye-dyeable acrylic staple fiber is not particularly limited. In addition to a flat circular shape, an irregular cross section, for example, an irregular cross section such as a triangle, a T-shape, an L-shape, a Y-shape, a star shape, or a hollow shape may be used. In particular,
It is preferable that the acrylic dye fiber dyeable with an acid dye in the raw cotton (B) has a modified cross-section fiber in order to enhance the effect of different colors.

Further, at least one of the acrylic dye fiber dyeable with a cationic dye in the raw cotton (A) and the acrylic staple fiber dyeable with an acid dye in the raw cotton (B) has a hot water shrinkage (at 100 ° C. hot water). It is preferable that the staple fiber comprises two or more kinds of staple fibers having different treatment conditions (for 10 minutes). As a result, a yarn having a high bulkiness (bulky property) can be obtained, and as a result, a yarn can be obtained which is a fabric having a lightweight feeling and excellent heat retention.

Particularly, at least one of the acrylic dye fiber dyeable with a cationic dye in the raw cotton (A) and the acrylic staple fiber dyeable with an acid dye in the raw cotton (B) has a hot water shrinkage ratio (100 ° C. heat). (By treatment with water for 10 minutes) is about 8 to 25%, particularly 10 to
Acrylic staple fiber of about 20% and the hot water shrinkage ratio of 0 to 3% (does not shrink by hot water or the hot water shrinkage ratio is 3% or less), particularly 0 to 2% (does not shrink by hot water Alternatively, a mixture of acrylic staple fibers having a hot water shrinkage ratio of about 2% or less) is preferable.

In the raw cotton (A) and the raw cotton (B), the acrylic staple fiber having a hot water shrinkage of about 8 to 25% may consist of one kind of acrylic staple fiber, but the hot water shrinkage is 8 It may be composed of two or more kinds of acrylic staple fibers having different hot water shrinkage ratios within the range of about 25%. Similarly, in the raw cotton (A) and the raw cotton (B), the acrylic staple fiber having a hot water shrinkage of about 0 to 3% is 1
It may be made of different types of acrylic staple fibers, or may be made of two or more types of acrylic staple fibers having different hot water shrinkage ratios within the range of 0 to 3%. .

When the hot water shrinkage ratio of the staple fiber having a high hot water shrinkage ratio is in the range of about 8 to 25%, a high indigo tone discoloration effect which is distinctly different from the heather color (two-color heather) can be obtained. , A soft texture is obtained.

If the hot water shrinkage of the staple fiber having a low hot water shrinkage is about 0 to 3%, the bulkiness of the yarn can be obtained by the interaction with the staple fiber having a high hot water shrinkage.

In the raw cotton (A) and the raw cotton (B), the mixing ratio of the acrylic staple fiber having a hot water shrinkage of about 8 to 25% and the acrylic staple fiber having a hot water shrinkage of about 0 to 3% is Although not particularly limited, the mass ratio is preferably about 3: 7 to 7: 3. More preferably, it is about 4: 6 to 6: 4.

In any case, raw cotton (A) and raw cotton (B)
It is preferable that the hot water shrinkage ratios of and are the same as those of the raw cotton as a whole. The fineness of the acrylic staple fiber is not particularly limited, but the fineness of the acrylic staple fiber in the raw cotton (A) is 0.9 to 3.3 dt.
ex about, more preferably about 2.2 to 3.3 dtex, acrylic staple fiber in the raw cotton (B) (hot water shrinkage rate constituting the raw cotton (B) (by treatment for 10 minutes with hot water at 100 ° C.) Of 3% or less is included in the acrylic dye fiber as the acid dye dyeable fiber, the fineness of the acid dye dyeable acrylic staple fiber is about 1.7 to 5 dtex, and more preferably 2.7 to 4 dtex. It is preferably about the same. Further, the fineness of the cationic dye-dyeable acrylic staple fiber in the raw cotton (A) and the fineness of the acid-dyeable acrylic staple fiber in the raw cotton (B) may be the same or different, In order to obtain a more excellent different color effect, it is preferable that they are different. In particular, the fineness of the acrylic dye fiber dyeable with the acid dye of the raw cotton (B) is higher than the fineness of the acrylic staple fiber dyeable with the cationic dye of the raw cotton (A), that is, a thicker one is preferable because darkening is likely to occur. The mixing ratio of the acrylic staple fiber in the raw cotton (B) and the acid dye dyeable fiber having a hot water shrinkage ratio (by treatment with hot water of 100 ° C. for 10 minutes) of 3% or less is not particularly limited. Mass ratio is 3:
It is preferably about 7 to 7: 3, and more preferably about 4: 6 to 6: 4. Dyeing In order to produce a yarn having an indigo tone different color effect using the indigo tone different color dyeable yarn of the present invention described above, the yarn is prepared using a cationic dye and an acid dye in accordance with a conventional method such as a two bath method or 1 Stain with the bath method. The cationic dye is not particularly limited, and known ones such as azo type and anthraquinone type can be selected from a wide range and used.

The acid dye is not particularly limited, and known ones such as azo type, anthraquinone type and metal complex salt type can be selected and used from a wide range. In addition, the type viewed from the dyeing property of the acid dye is not particularly limited, and a leveling type,
Both milling type and reactive dye type can be used.

Further, it is preferable to use a leveling agent in combination with the acid dye. The leveling agent is not particularly limited, and a known leveling agent can be used. For example, a polyethylene glycol derivative or the like can be exemplified as a dye affinity and a higher alcohol sulfate can be exemplified as a fiber affinity. The amount of the leveling agent used is not particularly limited, but is about 0.25 to 1% omf with respect to the yarn, more preferably 0.5 to
It may be about 1% omf.

As described above, a spun and twisted yarn of a cotton (A) dyeable with a cationic dye and a cotton (B) dyeable with an acid dye is prepared by using both a cationic dye and an acid dye. By dyeing, a heather color is obtained between the raw cotton (A) and the raw cotton (B) due to the difference in dyeing property between the raw cotton (B).

Further, the raw cotton (B) contains acrylic staple fibers and acid dye dyeable fibers such as wool having a hot water shrinkage of 3% or less (by hot water treatment at 100 ° C. for 10 minutes). The indigo tone discoloration effect can be obtained due to the difference in dyeing property with respect to the acid dye between these fibers.

More specifically, in an acidic dye solution at a low temperature immediately after the start of dyeing, the acidic dye is, for example, an acidic dye having a hot water shrinkage rate of 3% or less (by treatment with hot water at 100 ° C. for 10 minutes) such as wool. When the dyeable fiber is dyed and the dye solution is heated to, for example, about 100 ° C., the acid dye migrates from the acid dyeable fiber such as wool to the acrylic staple fiber. At this time, the same color property is not obtained between the acrylic staple fiber and the acid dye dyeable fiber such as wool, and a shade is generated, and as a result, an indigo tone different color effect is obtained.

Further, by using the leveling agent, the difference in dyeing property with respect to the acid dye between the acrylic staple fiber in the raw cotton (B) and the acid dye dyeable fiber such as wool is emphasized. As a result, a more excellent indigo tone discoloration effect can be obtained.

More specifically, the leveling agent strongly suppresses the dyeability of the acid dye to the acid dye dyeable fiber such as wool, but does not so much suppress the acid dye to the acrylic staple fiber. . As a result, there is a further difference in the dyeing property with respect to the acid dye between the acrylic staple fiber in the raw cotton (B) and the acid dye dyeable fiber such as wool, and a more excellent indigo tone discoloration effect is obtained.

Further, by using the yarn having the indigo tone discoloration effect of the present invention obtained by the above-mentioned method, various fabrics such as woven fabrics, knitted fabrics, laces, nets and nonwoven fabrics can be produced by a conventional method. The obtained dough becomes a dough having an indigo tone different color effect.

[0035]

EFFECTS OF THE INVENTION According to the present invention, it is possible to obtain a composite yarn made of fibers including acrylic fibers, which can be dyed in indigo tone different colors, and a fabric which can be dyed in indigo tone different colors using this yarn. Further, according to the present invention, a yarn having an indigo tone different color effect can be efficiently manufactured by using a yarn capable of being dyed with an indigo tone different color.

Furthermore, according to the present invention, the structure of the composite yarn is made into a finely spun and twisted yarn, and the dyeing method is specified so that the composite yarn made of fibers including acrylic fibers can be efficiently or simply An indigo tone different color effect is obtained. Further, by specifying the hot water shrinkage ratio or the fineness of the fibers constituting the yarn, the bulkiness of the yarn can be obtained, and as a result, a yarn can be obtained which is a fabric excellent in lightweight feeling and heat retention.

[0037]

EXAMPLES The present invention will be described below with reference to examples and test examples, but the present invention is not limited to these examples.

Example 1 The following raw cotton (A) and (B) were included in a mass ratio of 4: 6,
A 14th count spun yarn was produced. The hot water shrinkage ratio shown below is the hot water shrinkage ratio when treated with hot water at 100 ° C. for 10 minutes.

Raw cotton (A): hot water shrinkage 8%, fineness 3.3
dtex, cationic dye dyeable acrylic staple fiber with staple length of 76 to 127 mm (Exlan,
Made by Japan Exlan Industrial Co., Ltd.).

Raw cotton (B): hot water shrinkage 8%, fineness 3.3
A mixture of acrylic dye fibers dyeable with an acid dye having a dtex and a staple length of 76 to 127 mm (Exlan H, manufactured by Japan Exlan Industrial Co., Ltd.) and wool at a mass ratio of 1: 1.

This spun and twisted yarn was dipped in a dyeing solution having the following composition containing a cationic dye and an acid dye at 50 ° C. at a bath ratio (yarn: mass ratio of dyeing solution) of 1:30. Then
The dyeing solution is heated to 98 ° C over 60 minutes, and the temperature is increased to 40 ° C at 40 ° C
After holding for a minute and gradually cooling to room temperature, the yarn was taken out from the dyeing solution and washed with water.

<Composition of dyeing solution> Kayacryl Yellow 3RL (manufactured by Nippon Kayaku Co., Ltd.) 0.08% omf Kayacryl Navy Blue BL (manufactured by Nippon Kayaku Co., Ltd.) 0.5% omf Kayanor Milling Yellow RW (manufactured by Nippon Kayaku Co., Ltd.) 0.001% omf Kayanol Milling Blue GW (Nippon Kayaku Co., Ltd.) 0.38% omf Cationic dye slow-dyeing agent 0.58% omf Acid dye leveling agent 0.50% omf Dispersant 0.3g / l Glauber's salt 2% omf Acetic acid Amount of 4 to 5 Comparative Example 1 In Example 1, a mixed yarn was produced using raw cotton obtained by mixing raw cotton (A) and raw cotton (B) in a mass ratio of 4: 6. Then, this blended yarn was dyed under the same conditions as in Example 1.

Test Example 1 The indigo tone discoloration effect, texture and bulkiness of each yarn obtained in Example 1 and Comparative Example 1 were visually evaluated.

The yarn obtained in Example 1 was excellent in indigo tone discoloration effect, texture and bulkiness, and particularly high indigo tone discoloration effect was obtained. on the other hand,
The yarn obtained in Comparative Example 1 was similar to Example 1 in texture and bulkiness, but was inferior to Example 1 in indigo tone discoloration effect.

As a result, it can be seen that in order to obtain a high indigo tone discoloration effect, it is necessary to use spun and twisted yarns.

Example 2 The same spun yarn as in Example 1 was dyed with a cationic dye and a leveling type acid dye. The stain is
The following composition was used. The bath ratio, dyeing temperature and dyeing time were the same as in Example 1.

<Composition of dyeing solution> Kayacryl yellow 3RL (manufactured by Nippon Kayaku) 0.08% omf Kayacryl Navy Blue BL (manufactured by Nippon Kayaku) 0.5% omf Sandrun First Yellow PL (manufactured by Clariant) 0.003% omf Sandrun First Blue P-RL (manufactured by Clariant) 0.43% omf Cationic dye slow-dyeing agent 0.58% omf Acid dye leveling agent 0.50% omf Dispersant 0.3g / l Glauber's salt 5% omf Acetic acid Staining solution pH 4 ~ Amount of 5 Example 3 The same spun yarn as in Example 1 was dyed with a cationic dye and a milling type acid dye. The dyeing solution used had the following composition. The bath ratio, dyeing temperature and dyeing time were the same as in Example 1.

<Composition of dyeing solution> Kayacryl Yellow 3RL (manufactured by Nippon Kayaku Co., Ltd.) 0.08% omf Kayacryl Navy Blue BL (manufactured by Nippon Kayaku Co., Ltd.) 0.5% omf Kayanor Milling Yellow RW (manufactured by Nippon Kayaku Co., Ltd.) 0.001% omf Kayanol Milling Blue GW (Nippon Kayaku Co., Ltd.) 0.38% omf Cationic dye slow-dyeing agent 0.58% omf Acid dye leveling agent 0.50% omf Dispersant 0.3g / l Glauber's salt 2% omf Acetic acid Amount obtained from 4 to 5 Example 4 The same spun yarn as in Example 1 was dyed with a cationic dye and a 2: 1 gold-containing dye which is an acid dye. The dyeing solution used had the following composition. The bath ratio, dyeing temperature and dyeing time were the same as in Example 1.

<Composition of dyeing solution> Kayacryl Yellow 3RL (manufactured by Nippon Kayaku Co., Ltd.) 0.08% omf Kayacryl Navy Blue BL (manufactured by Nippon Kayaku Co., Ltd.) 0.5% omf Isolane Yellow S-GL (manufactured by Dyster Co.) 0.003 % omf Isolane Dark Blue 2S-GL (manufactured by Dyster) 0.44% omf Cationic dye slow-dyeing agent 0.58% omf Acid dye leveling agent 0.50% omf Dispersant 0.3g / l Glauber's salt 5% omf Acetic acid Staining solution pH 4 Amount of 5 to 5 Test Example 2 Each dyed yarn obtained in Examples 2 to 4 was evaluated for indigo tone discoloration effect, texture and bulkiness.

With respect to the texture and the bulkiness, the dyed yarns of Examples 2 to 4 all gave the same good results. On the other hand, regarding the indigo tone discoloration effect, Examples 3 and 2: 1 using a milling type dye were used.
Each dyed yarn obtained in Example 4 using the gold-containing dye was
Although the dyeing yarn obtained by Example 2 using the leveling type dye showed a very excellent indigo tone different color effect, compared with each of the dyed yarns obtained by Examples 3 and 4, the indigo tone different color effect was obtained. Was slightly inferior.

Example 5 The same spun twisted yarn as in Example 1 was dyed with a cationic dye and a milling type acid dye. The dyeing solution used had the following composition. The bath ratio, dyeing temperature and dyeing time were the same as in Example 1.

<Composition of dyeing solution> Kayacryl Yellow 3RL (manufactured by Nippon Kayaku Co., Ltd.) 0.08% omf Kayacryl Navy Blue BL (manufactured by Nippon Kayaku Co., Ltd.) 0.5% omf Kayacryl Milling Blue GL (manufactured by Nippon Kayaku Co., Ltd.) 0.25% omf cationic dye slowing agent 0.58% omf dispersant 0.3 g / l Glauber's salt 2% omf acetic acid The amount of the dyeing solution having a pH of 4 to 5 Example 6 In Example 5, the acid dye was used as a leveling agent, Levesin C.
The finely spun twisted yarn was dyed in the same manner as in Example 5 except that M (manufactured by Nissei Kasei Co., Ltd.) was also used. The amount of leveling agent used was 0.25% omf with respect to the yarn.

Example 7 In Example 6, the leveling agent was used in an amount of 0.5 with respect to the yarn.
The spun-twisted yarn was dyed in the same manner as in Example 6 except that% omf was used.

Example 8 In Example 6, the amount of the leveling agent used was 1% o based on the yarn.
The spun-twisted yarn was dyed in the same manner as in Example 6 except that mf was used.

Test Example 3 The dyed yarns obtained in Examples 5 to 8 were evaluated for indigo tone discoloration effect, texture and bulkiness. With respect to the texture and the bulkiness, the dyed yarns of Examples 5 to 8 all had similar good results.

Regarding the indigo tone discoloration effect, Example 6 dyed with a milling type acid dye solution containing 0.25% omf of the leveling agent and 0.5% of the leveling agent were used.
The dyed yarn obtained according to Example 7 dyed with a milling type acid dye solution containing mf showed a very good indigo tone discoloration effect. On the other hand, the dyed yarn obtained in Example 5 in which no leveling agent was used and in Example 8 in which the leveling agent was used to dye with a milling type acidic dye solution containing 1% omf had an indigo tone discoloration effect. It was a little inferior.

As a result, when the milling type acidic dye is used, the use of the leveling agent is effective in obtaining the indigo tone discoloration effect, and the amount of the leveling agent used is 0.25 to 0.5.
It can be seen that it is preferable to set it to about% omf.

Example 9 The following raw cotton (A) and (B) were included in a mass ratio of 5: 5,
A 14th count spun yarn was produced. The hot water shrinkage ratio shown below is the hot water shrinkage ratio when treated with hot water at 100 ° C. for 10 minutes.

Raw cotton (A): hot water shrinkage 10%, fineness 3.
It is composed of an acrylic staple fiber dyeable with a cationic dye having a staple length of 3 to 7 mm and a staple length of 76 to 127 mm (Exlan, manufactured by Japan Exlan Industrial Co., Ltd.).

Raw cotton (B): Acid dye dyeable acrylic staple fiber (Exlan H, manufactured by Nippon Exlan Industrial Co., Ltd.) having a hot water shrinkage of 3% or less, a fineness of 3.3 dtex, and a staple length of 76 to 127 mm, and wool are mass. Mixing ratio 1: 1.

This spun yarn was dyed in the same manner as in Example 1.

Example 10 The following raw cotton (A) and (B) were included in a mass ratio of 5: 5,
A 14th count spun yarn was produced. The hot water shrinkage ratio shown below is the hot water shrinkage ratio when treated with hot water at 100 ° C. for 10 minutes.

Raw cotton (A): Hot water shrinkage of 3% or less, fineness of 3.3 dtex, cationic dye dyeable acrylic staple fiber (Exlan, manufactured by Japan Exlan Industrial Co., Ltd.) with staple length of 76 to 127 mm, and hot water shrinkage. 10
%, Fineness 3.3 dtex, staple length 76 to 127 m
A mixture of m cationic dye dyeable acrylic staple fibers (Exlan, manufactured by Nippon Exlan Industrial Co., Ltd.) in a mass ratio of 4: 6.

Raw cotton (B): hot water shrinkage 15%, fineness 3.
Acid dye dyeable acrylic staple fiber with 3 dtex and staple length of 76 to 127 mm (Exlan H4
0, made by Japan Exlan Industrial Co., Ltd.) and wool in a mass ratio of 6: 4.

This finely spun yarn was dyed in the same manner as in Example 1.

Example 11 A spun-twisted yarn was produced in the same manner as in Example 10 except that the raw cotton (B) was changed to the following.
Dyeing was carried out in the same manner as in Example 1.

Raw cotton (B): hot water shrinkage 15%, fineness 3.
Acid dye dyeable acrylic staple fiber with 3 dtex and staple length of 76 to 127 mm (Exlan H4
0, manufactured by Japan Exlan Co., Ltd.) and hot water shrinkage rate of 3% or less,
A mixture of acrylic dye fibers dyeable with an acid dye and having a fineness of 3.3 dtex and a staple length of 76 to 127 mm (Exlan H4, manufactured by Nippon Exlan Industrial Co., Ltd.) and wool at a mass ratio of 4: 2: 4.

This spun yarn was dyed in the same manner as in Example 1.

Test Example 4 The indigo tone discoloration effect, texture and bulkiness of each yarn obtained in Examples 9, 10 and 11 were visually evaluated. Each of the yarns obtained in Examples 9, 10 and 11 was excellent in indigo tone discoloration effect, texture and bulkiness, and particularly remarkable indigo tone discoloration effect and high bulkiness were obtained.

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Kiichiro Yata             2-8 Dojimahama, Kita-ku, Osaka City, Osaka Prefecture             Japan Exlan Industrial Co., Ltd. F-term (reference) 4H057 AA02 BA02 BA03 DA01 DA19                       DA33 DA34 EA00 GA07 GA08                 4L036 MA04 MA35 MA39 PA21 PA31                       PA33 PA47 UA16                 4L048 AA16 AA42 AA50 AB05 AB12                       AC07 CA00

Claims (6)

[Claims] 1. A crochet yarn made of acrylic staple fiber raw cotton (A) dyeable with a cationic dye, an acrylic staple fiber dyeable with an acid dye and hot water shrinkage (100 ° C.).
Spinning and twisting from a roving made of mixed raw cotton (B) in which a dyeable fiber having an acid dye content of 3% or less (by treatment with hot water for 10 minutes) is mixed in a mass ratio of 3: 7 to 7: 3. An indigo-like dyeable thread characterized by being obtained by a method. 2. At least one of the acrylic dye fiber dyeable with a cationic dye and the acrylic staple fiber dyeable with an acid dye has a hot water shrinkage ratio (by treatment for 10 minutes at 100 ° C. hot water) of 8 to 25%. The indigo tone different color dyeable yarn according to claim 1. 3. Acrylic staple fibers in at least one of the raw cotton (A) and the raw cotton (B), wherein the acrylic staple fibers have different hot water shrinkage rates (by treatment for 10 minutes in hot water at 100 ° C.). The indigo-like dyeable yarn according to claim 1, which is a mixture of fibers. 4. The indigo-like color-dyeable yarn according to claim 1, 2 or 3, wherein the spinning / twisting ratio of the raw cotton (A) and the raw cotton (B) is 3: 7 to 7: 3. 5. An indigo tone different color dyeable fabric, which is manufactured by using the yarn according to any one of claims 1 to 4. 6. The yarn according to any one of claims 1 to 4,
A method for producing a yarn having an indigo tone discoloration effect, which comprises dyeing with a cationic dye and an acid dye.