JPH08134770A - Production of wool fabric having high stretchability - Google Patents

Abstract

PURPOSE: To provide a method for producing wool fabric having high stretchability in the warp direction. CONSTITUTION: Spun yarn containing at least wool fibers as constituent fibers is immersed in an aqueous solution containing alcohols, then drawn at 10-50% and subsequently dried. The resultant spun yarn as warp is woven and the steam or wet heat treatment of the prepared woven fabric is then carried out.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a woolen fabric having high stretchability.

[0002]

2. Description of the Related Art In recent years, as the standard of living has been raised, demands for diversification and upsizing of clothing products have increased, and there has been a demand for a woolen fabric having high elasticity which can meet the demand. Here, the woolen fabric means a fabric containing at least wool fibers.
Conventionally, in the manufacturing process of a woolen fabric, tension, that is, tension is applied to the warp to give unevenness to the weft, and the weft direction of the weft is 8 to
A method of imparting elasticity of about 10% is known. Further, by using a strong twist yarn as the weft yarn, it is possible to obtain a woolen fabric having higher stretchability.

On the other hand, regarding the stretchability in the warp direction, about 5% stretchability is imparted in the warp direction by excessive feeding of the woolen fabric in the drying process or shrinkage of the warp yarn according to the shrinkage behavior of the wool fiber in the dyeing process. can do.

[0004]

However, according to the above-mentioned conventional method, it is possible to impart a high stretchability to the woolen fabric in the weft direction, but 5% in the warp direction as described above. However, there is a problem in that the woolen fabric cannot be applied to applications with high mobility because it can only impart low elasticity.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a method for producing a woolen fabric having high elasticity in the warp direction.

[0006]

According to the present invention for achieving the above object, a spun yarn containing at least wool fiber as a constituent fiber is dipped in an aqueous solution containing alcohols, and then the spun yarn is used in an amount of 10 to 50. %, Followed by drying, then weaving the spun yarn as warp, and then subjecting the woven fabric to steam or wet heat treatment.

The alcohols include ethyl alcohol, i-propyl alcohol, n-butyl alcohol, i-butyl alcohol, etc. in addition to n-propyl alcohol. The proportion of the aqueous solution containing alcohols is preferably in the range of 10 to 100%.

[0008]

According to the present invention having the above-mentioned constitution, by immersing the wool fiber in the aqueous solution containing alcohols, the hydrogen bond of the wool fiber is cut and the wool fiber is easily applied with a slight force. It becomes possible to extend. Then, by stretching after being stretched by 10 to 50%, hydrogen bonds are regenerated at the time of drying and a temporary set (temporary set) peculiar to the wool fiber acts, and a spun yarn elongated by 10 to 40% can be obtained. .

The reason why the film is stretched by 10% or more is that the desired stretchability cannot be obtained if it is less than 10%.
The reason for setting below is that there is a risk that the yarn will be cut when further stretched, and that even if the yarn is excessively stretched, the stretchability corresponding thereto cannot be obtained. Considering the above, the most preferable stretching range is 15 to 35%.

Then, the spun yarn that has been stretched is used as a warp to form a woven fabric, and the woven fabric is subjected to steam or moist heat treatment to break the hydrogen bond of the wool fiber again (release the temporary set). Return to original length (natural length). This causes the fabric to shrink 7-20% in the warp direction. Therefore, the woven fabric has a high stretchability of 7 to 20%.

[0011]

Embodiments of the present invention will be described below. First, an apparatus for immersing a spun yarn in an aqueous solution containing alcohols will be described with reference to FIG. As shown in the figure, this device comprises a feeding roller (1), a winding roller (2), a dipping section (3), a stretching section (8), and a conveying section (14).

The feeding roller (1) is configured to wind a large number of threads around a beam (cylindrical body), rotate the beam in the direction of arrow A, and pay out the thread in the direction of arrow C. The immersion part (3) includes a water tank (4), a first padding roller pair (5) provided in the water tank (4), a second padding roller pair (6), and a water tank (4). And an aqueous solution (7) containing alcohols stored in.

Further, as shown in the figure, the transport section (14) is
A first guide roller (15) rotatably provided and a second guide roller (15)
Guide roller (16) and the third guide roller (1
7), a fourth guide roller (18), a fifth guide roller (19), a sixth guide roller (20), a seventh guide roller (21), and an eighth guide roller ( Two
2) and are provided.

The stretching section (8) has a first stretching roller (9), a second stretching roller (10), a third stretching roller (11), and a first drying roller (12). And the second
And a drying roller (13). And these 1st thru | or 3rd extending | stretching rollers (9)-(11) and 1st
And the drying rollers (12) and (13) of 2 and 3, respectively, rotate in the directions of the arrows, and the rotation speeds are the third stretching roller (11), the second stretching roller (10), and the first stretching roller (9). ) In order, and the yarn is drawn by this difference in rotation speed. Incidentally, the third stretching roller (11), the first
The drying roller (12) and the second drying roller (13) have the same rotation speed. First drying roller (12)
Steam is circulated in the rollers of the second drying roller (13) and each roller is kept at a predetermined high temperature, in this example, 80 ° C. The first stretching roller (9), the second stretching roller (10) and the third stretching roller (11) are each at room temperature. Further, the winding roller (2) includes a beam that rotates in the direction of arrow B,
A large number of threads are wound around the beam.

Thus, according to this device, a large number of threads wound around the beam are drawn out from the pay-out roller (1),
After being dipped in the aqueous solution (7) of the dipping section (3), the first stretching roller (9), the second stretching roller (10) and the third stretching roller (11) in the stretching section (8). It is stretched and dried by the first drying roller (12) and the second drying roller (13). And
The yarn is wound on a winding roller (2).

(Example 1) First, in a spinning process, a 2/60 (meter count) twin yarn having 100% wool fiber, a lower twist number of 600 T / M and an upper twist number of 550 T / M was manufactured. Then, 4040 of the twin yarns were wound on a beam and set in the above dipping device. In addition, in the aqueous solution (7),
An aqueous solution of n-purpill alcohol: water of 50:50 was used, and the stretching in the stretching part (8) was 20%. Next, a plain woven fabric having a warp density of 57 yarns / inch and a weft yarn density of 54 yarns / inch is formed by using the above-mentioned twin yarns, and then the steaming-dyeing-drying-pot steaming process is sequentially performed on this plain woven fabric. Then, the woolen fabric of Example 1 was obtained.

(Example 2) First, in a spinning step, a 2/72 (metric count) twin yarn having 100% wool fiber, a lower twist number of 740 T / M and an upper twist number of 1150 T / M was manufactured. After that, the twine was dyed, and then 8504 of the twine was wound on a beam and set in the above dipping device. As the aqueous solution (7), an aqueous solution of n-purpyru alcohol: water of 20:70 was used, and the stretching part (8) was used.
The stretching was 17%. Then, a gabard fabric having a warp density of 120 yarns / inch and a weft yarn density of 85 yarns / inch is formed by using the above-mentioned twin yarns, and then the processing of steaming-washing-drying-steaming is sequentially performed on this GABA fabric. Then, a woolen fabric of Example 2 was obtained.

(Comparative Example 1) n-Purpyru alcohol: the same process as in Example 1 except that the step of immersing the spun yarn in an aqueous solution of 50:50 water and the step of stretching the spun yarn by 20% were omitted. By carrying out, a woolen fabric of Comparative Example 1 was obtained.

(Comparative Example 2) n-Purpyru alcohol: the same process as in Example 2 except that the step of immersing the spun yarn in an aqueous solution of 20:70 water and the step of stretching the spun yarn by 17% By carrying out, a woolen fabric of Comparative Example 2 was obtained.

Wool fabrics of Examples 1 and 2 above, Comparative Example 1
According to JIS L 1096, the woolen fabric was measured for elasticity in the warp direction and the weft direction. The results are shown in Table 1 below.

[0021]

[Table 1]

As shown in Table 1, the woolen fabrics of Examples 1 and 2 have the same stretchability in the weft direction as the woolen fabrics of Comparative Examples 1 and 2, but have high stretchability in the warp direction. I know that

Although the embodiment of the present invention has been described above, it is needless to say that the present embodiment is merely an example of the present invention and the specific embodiment of the present invention is not limited to this. . As an additional note, this example shows an example of a spun yarn of 100% wool, but the present invention is not limited to this, and a mixed yarn of cotton, hemp, etc. and wool fiber, nylon, It can also be applied to a mixed yarn of synthetic fibers such as polyester and rayon and wool fibers.

[0024]

As described above in detail, according to the present invention, a woolen fabric having extremely high stretchability can be obtained. Therefore, the woolen fabric can be used for sports clothes such as golf wear, casual wear, and the like for appropriately moving the body.

[Brief description of drawings]

FIG. 1 is a front view showing a schematic configuration of a specific device for carrying out the present invention.

[Explanation of symbols]

 1 Feeding Roller 2 Winding Roller 3 Immersion Section 4 Water Tank 5 First Padding Roller Pair 6 Second Padding Roller Pair 7 Aqueous Solution 8 Stretching Section 9 First Stretching Roller 10 Second Stretching Roller 11 Third Stretching Roller 12 First Drying Roller 13 Second Drying Roller 14 Conveying Section 15 First Guide Roller 16 Second Guide Roller 17 Third Guide Roller 18 Fourth Guide Roller 19 Fifth Guide Roller 20 Sixth Guide Roller 21 7th guide roller 22 8th guide roller

Claims (1)

[Claims] 1. A spun yarn containing at least wool fiber as a constituent fiber is dipped in an aqueous solution containing alcohols, and then the spun yarn is stretched by 10 to 50% and then dried, and then the spun yarn is used as a warp. A method for producing a highly woven woolen fabric, which comprises weaving and then subjecting the fabric to steam or wet heat treatment.