JP2003313769A - Method for producing fluffed fabric having unique touch - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for producing a fluffed fabric giving good feeling to the skin similar to a double-fluffed fabric, soft touch and voluminous feeling and having unique touch comprising excellent crispness and resilience. <P>SOLUTION: A fabric such as a woven or knit fabric is fluffed and the fluffed face is treated with a high-pressure liquid jet stream. The length of the fluff is preferably longer than the thickness of the fabric. Preferably, the fluffed face is treated with high-pressure liquid jet streams ejected through nozzles each having a diameter of 0.05-1.0 mm. The sum of the diameters of the nozzles is set to ≥70% of the treating width of the fabric. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to casual clothing,
The present invention relates to a method for producing a raised fabric having a novel texture used for clothing such as sports clothing and athletic clothing.

[0002]

2. Description of the Related Art Conventionally, the surface of a cloth is rubbed with a cloth roll or emery paper, and the fibers constituting the cloth are scratched to generate naps, thereby providing added value such as heat retention and a soft touch feeling. There are many manufactured brushed products that have been added. The napped products manufactured in this way scratch the fibers that make up the fabric and cut the fibers to raise the fibers, which impairs the tension and waist of the fabric, and also causes pilling to prevent pilling and anti-snapping. There was a drawback that the performance of was also decreased at the same time. Further, in order to increase heat retention, soft feel, volume, etc., double-sided brushing is also performed to generate raised hair on both front and back surfaces of the fabric. If both sides are brushed, there is a drawback in that the tension and waist are further reduced, and at the same time, the tear strength is significantly reduced. In order to compensate for these drawbacks, it is the current situation that resin is impregnated in the finishing process to restore it.With this method, it is extremely difficult to restore the tension and waist before raising, and the processing cost is high. There was a problem.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of such a situation as described above, and has a good feeling of touch such as double-sided brushing, a soft feeling and a voluminous feeling, and an excellent tension and waist. An object of the present invention is to provide a method for producing a raised fabric having a novel texture having the above.

[0004]

DISCLOSURE OF THE INVENTION The present invention is to solve the above-mentioned problems and is characterized in that after raising the fabric, the raised surface of the fabric is treated with a high pressure liquid columnar flow. The gist is a method for producing a raised fabric having a different texture.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in detail below. Examples of the cloth used in the present invention include woven fabric, knitted fabric, and non-woven fabric. The types of fibers used in this cloth include polyamide synthetic fibers represented by nylon 6 and nylon 66, polyester synthetic fibers represented by polyethylene terephthalate, polyacrylonitrile synthetic fibers, polyvinyl alcohol synthetic fibers, Examples include semi-synthetic fibers such as triacetate, regenerated fibers such as rayon and polynosic, natural fibers such as cotton, hemp, silk, and wool. Examples of yarns used include filament yarns and spun yarns of the above fibers, or these. Examples of the mixed fiber include mixed fiber and mixed yarn.

The cloth may have any structure, but when the cloth is a woven fabric or a knitted fabric, it is preferable to have a structure in which a long float is formed on the surface to be raised. For example, in the case of a woven fabric, it is preferable to adopt a 5-sheet satin structure or a twill structure with large ridges. Further, in the case of warp knitting, it is preferable that it is a structure in which a Denb structure having a large lateral swing is combined, and in the case of flat knitting, a structure having a large sinker loop is preferable. With the cloth adopting such a structure, it becomes easy to make the length of the nap when raised is equal to or more than the thickness of the cloth.

In the present invention, first, the cloth is raised.
The raising treatment is applied to only one side of the fabric. There is no limitation on the raising method that can be used, and known methods such as nap raising and emery paper raising can be used, and a combination method thereof can also be used. It is also possible to perform shirring after the nap raising treatment to trim the tip of the long napped hair to make the length uniform.

In the present invention, it is preferable that the length of the naps obtained by the napping treatment is not less than the thickness of the cloth. The length of the naps in this case refers to the average length of the naps coming out of the cloth. By setting the length of the naps to be equal to or greater than the thickness of the fabric, the tips of the naps are embedded between the tissues of the fabric and the constituent fibers in the subsequent treatment with the high-pressure liquid columnar flow, and the tips of the naps are the fabric. It is easy to obtain the effect of the present invention that a new texture having a soft feel, a soft feel, and a voluminous feel, as well as an excellent tension and a waist is obtained on the back side of the.

In the present invention, the napped surface of the napped cloth is treated with a high pressure liquid columnar flow. The treatment with the high-pressure liquid columnar flow is carried out in order to embed the naps generated by the nap raising process between the tissues of the cloth and between the constituent fibers, and also to let the tip of the nap rise on the back surface of the cloth. In the present invention, the high-pressure liquid columnar flow means a liquid flow obtained by injecting liquid at high pressure through fine injection holes.

The treatment with the high pressure liquid columnar flow can be carried out, for example, by a high pressure liquid columnar flow treatment machine whose structure is schematically shown in FIGS. In FIG. 1, reference numeral 1 is a napped fabric, and the napped surface is supplied downward. The napped fabric 1 is supplied to the high-pressure liquid columnar flow treatment zone by the supply roll 2, treated with the high-pressure liquid columnar flow injected from the injection holes 4 provided in the high-pressure liquid columnar flow injection nozzle 3, and then delivered by the delivery roll 5. While squeezing the liquid, it is discharged from the high pressure liquid columnar flow treatment zone.

A plate 6 may be provided on the back side of the cloth as shown in FIG. 2 in order to prevent processing unevenness due to vibration of the cloth when it is processed by the high pressure liquid columnar flow. Further, as shown in FIG. 3, it is also possible to stabilize the spread state of the cloth in the width direction by using a roll 7 which rotates along the running of the cloth and to carry out the high pressure liquid columnar flow treatment on the roll 7. Further, as illustrated in FIG. 3, it is possible to provide a plurality of high-pressure liquid columnar flow treatment zones and to perform the high-pressure liquid columnar flow treatment a plurality of times. The uniformity of the treatment effect can be improved.

As the liquid used for the high-pressure liquid columnar flow, water or warm water is preferably used because it is easy to handle, but it may contain a surfactant, an antistatic agent, various finishing agents and the like. .

The high-pressure liquid columnar flow injection holes have a hole diameter of 0.0.
It is preferably a fine hole having a diameter of 5 to 1.0 mm, and particularly preferably a circular shape having a diameter of 0.1 to 0.4 mm. A smaller hole diameter of the injection holes is advantageous for embedding the naps generated in the raising process in the structure of the fabric.
If it is less than mm, the frequency of clogging of the injection holes increases, which is not preferable in practice. On the other hand, when it exceeds 1.0 mm, the high-pressure liquid columnar flow tends to be too thick and it is difficult to obtain a uniform treatment effect, which is not preferable.

The high-pressure liquid columnar flow jet nozzle has 5 to 30 jet holes / cm arranged linearly. The injection nozzle may be one in which the injection holes are arranged in one row, but it is preferable that the injection nozzles are arranged in a plurality of rows with the centers of the holes shifted. And, it is preferable that the total diameter of the injection holes is 70% or more of the processing width of the cloth.

The flow velocity of the high-pressure liquid columnar flow is 2 to 300 m /
Seconds are preferred. If the flow velocity is less than 2 m / sec,
It is not preferable because there is a high possibility that the naps cannot be sufficiently embedded in the fabric structure due to lack of energy. On the other hand, if the flow velocity exceeds 300 m / sec, the energy is too large and the fibers constituting the fabric are likely to be cut or the fabric is likely to have holes, which is not preferable.

The injection pressure of the high-pressure liquid columnar flow is 0.4 to 1
It is preferably 5 MPa. Injection pressure is 0.4 MPa
If it is less than this, there is a high possibility that the naps cannot be sufficiently embedded in the structure of the fabric due to lack of energy, which is not preferable. On the other hand, the injection pressure is 15 MPa
When it exceeds, the energy is too large, and there is a high possibility that the fibers constituting the cloth are cut or holes are made in the cloth, which is not preferable.

The distance between the spray nozzle and the cloth when the high-pressure liquid columnar flow is sprayed onto the raised surface of the cloth is preferably 0.5 to 15 cm. If this distance is less than 0.5 cm,
The cloth may come into contact with the injection nozzle during the treatment, and the liquid columnar traces may remain in a streak-like shape, which may reduce the commercial value, which is not preferable. The distance between the spray nozzle and the fabric is 15c
If it exceeds m, the high-pressure liquid columnar flow may be disturbed due to static electricity generated by air resistance or friction with air, and energy loss may increase. As a result, the treatment efficiency may be reduced and the treatment effect may be nonuniform, which is not preferable.

In the present invention, when the napped fabric is treated with the high-pressure liquid columnar flow, the napped fabric is caused to travel in a spread state, and the napped surface of the napped fabric is treated with the high-pressure liquid columnar flow. The speed at which the cloth runs is preferably 1 to 50 m / min, and particularly preferably 3 to 25 m / min. In the case of processing with the processor having the structure of FIG. 1, it is preferable to set the surface speeds of the supply roll 2 and the delivery roll 5 to be the same. The speed at which the fabric runs is 1 m /
If it is less than minutes, the processing speed is too slow and the productivity is lowered, which is not preferable. If the speed at which the cloth runs exceeds 50 m / min, the time during which the high-pressure liquid columnar flow acts on the cloth becomes too short, and the naps cannot be sufficiently embedded in the cloth, which is not preferable.

[0019]

When the raised surface of the nap-treated cloth is treated with the high-pressure liquid columnar flow as in the present invention, the nap produced by the nap is embedded between the tissues of the cloth and between the constituent fibers and lost by the nap. The tension and waist of the fabric is restored, and it is possible to obtain a raised fabric having an appropriate bulge and good tension and waist. In addition, if a raising process is performed so that the length of the raised hair to be generated is equal to or greater than the thickness of the cloth, the tip of the raised hair can be brought to the back side, so that the same bulging feeling as when double-side raised hair is applied and You can get a soft feeling, tension
In terms of waist, the drawback of double-sided brushing can be greatly improved.

[0020]

EXAMPLES The present invention will be described in more detail with reference to the following examples. The characteristics of the cloth in the examples are evaluated by the following methods. (1) Length of napped fabric The cross-section of the fabric after napping was installed in an optical microscope with a gauge set in advance, the napped lengths at five different positions were measured in 0.01 mm units, and the average was taken as the napped length. (2) Feeling A sensory test was conducted by touching the hands, and the tension and waist were mainly repulsion, and the touch was softness, and ◎: extremely good, ○: good, △: somewhat bad, ×: bad. It was evaluated in four stages. (3) Volume feeling The thickness of the cloth was measured according to JIS L-1096. (4) Strength of Fabric Tear strength of the fabric was measured by the pendulum method according to JIS L-1096.

Example 1 Polyester filament false twisted yarn 84 decitex / 72 filaments was used for both warp and weft, and the warp density was 226 / 2.54 cm, the weft density was 104/2.
Weaving and scouring a 54 cm 5-slice satin double-woven fabric.
It was preset. The thickness of the resulting fabric is 0.30
It was mm. A 2% aqueous solution of Kimol N (a brushing agent made by Osaka Chemical Co., Ltd., a silicone fatty acid ester-based white paste) was applied to this woven fabric at a squeezing ratio of 80%, and sandpaper with a grain size of 180 was added to an emery raising machine made by Wakayama Iron Works Co., Ltd. Installation, rotation speed 2000r. p. Emery raising was performed at a running speed of 10 m / min for the fabric, and then the fabric was raised three times with a hydraulic needle cloth raising machine manufactured by Nankai Iron Works Co., Ltd. to obtain a single-side raised fabric. The length of the naps generated is 0.
It was 37 mm. After dyeing the obtained single-sided woven fabric with a disperse dye, a high-pressure liquid columnar flow treatment machine whose schematic structure is shown in FIG.
Three rows are arranged at a pitch of mm and the row spacing is 0.5 m
m injection nozzle <total diameter ratio of one injection nozzle hole to processing width = (0.14 x 3 / 0.6) = 70%
> To inject a high-pressure liquid columnar flow with an injection pressure of 15 MPa, set the distance between the injection nozzle and the fabric to 2 cm, set the running speed of the fabric to 10 m / min, perform the treatment with the high-pressure liquid columnar flow, and dry to perform the final set. A raised fabric having a novel texture was obtained.

Comparative Example 1 A single-sided woven fabric was obtained in the same manner as in Example 1 except that the high pressure liquid columnar flow treatment was not performed.

Comparative Example 2 In addition to the surface raising of Comparative Example 1, the same raising is applied to the back side,
A double-sided woven fabric was obtained.

Example 2 Polyester filament false twisted yarn 84 decitex / 72 filament was used to prepare Li manufactured by Fukuhara Seiki Co., Ltd.
An L4-AL circular knitting machine knitted a knitted fabric having an interlock structure, scouring and presetting. The thickness of the obtained knitted fabric was 0.49 mm. This knitted fabric was attached to an emery raising machine manufactured by Wakayama Iron Works Co., Ltd. with sandpaper having a grain size of 180, and the rotation speed was 2000 r. p. m, the running speed of the knitted fabric was 10 m / min, and then the fabric was napped twice with a hydraulic needle cloth raising machine manufactured by Nankai Iron Works Co., Ltd. to obtain a single-sided raised knitted fabric. The length of the naps generated is
It was 0.62 mm. Once obtained, the single-sided brushed knitted fabric is dyed with a disperse dye, and then treated with a high-pressure liquid columnar flow in the same manner as in Example 1, dried and subjected to a final set to obtain a novel wind according to the present invention. A raised knitted fabric having a texture was obtained.

Comparative Example 3 A single-sided raised knitted fabric was obtained in the same manner as in Example 2 except that the high pressure liquid columnar flow treatment was not performed. Table 1 shows the evaluation results of the obtained Examples 1-2 and Comparative Examples 1-3.

[0026]

[Table 1]

As is clear from Table 1, the napped fabrics obtained in Examples 1 and 2 have excellent tension, waist and swelling feeling, and have a well-balanced texture that retains good tenacity. It had both physical properties. On the other hand, in Comparative Examples 1 and 3 in which the single-sided brushing is performed, the surface has a good feel to the touch, but the back has a poor feel to the touch and is inferior in terms of tension and waist. In Comparative Example 2 in which both sides are raised, the back side has a better texture than the one side raised, but the tenacity and waist are further inferior, and the strength is also greatly reduced.

[0028]

Industrial Applicability According to the present invention, the napped fabric produced by the nap raising process is embedded in the structure of the fabric by utilizing the high pressure liquid columnar flow to provide a napped fabric having a soft touch and at the same time having a good tension and waist. Obtainable. In addition, by raising naps that are longer than the thickness of the cloth by raising, the tip of the naps can be made to appear on the back surface of the cloth, and the same soft feeling and volume feeling as double-sided raising can be obtained. The cloth obtained by the present invention can be suitably used for applications such as women's clothing, casual clothing, sports clothing, and athletic clothing.

[Brief description of drawings]

FIG. 1 is a diagram showing an example of a high-pressure liquid columnar flow treatment machine that can be used in the present invention.

FIG. 2 is a diagram showing another example of a high-pressure liquid columnar flow treatment machine that can be used in the present invention.

FIG. 3 is a diagram showing another example of a high-pressure liquid columnar flow treatment machine that can be used in the present invention.

[Explanation of symbols] 1 cloth 2 Feed roll 3 injection nozzles 4 injection holes 5 Deli Berry Roll 6 plates 7 rolls 8 guide rolls

Claims (4)

[Claims] 1. A method for producing a raised fabric having a novel texture, which comprises subjecting a fabric to a raising treatment and then treating the raised face of the fabric with a high-pressure liquid columnar flow. 2. The method for producing a raised fabric having a novel texture according to claim 1, wherein the raised fabric is subjected to a raising treatment so that the length of the raised fabric is equal to or greater than the thickness of the fabric. 3. A raised fabric having a novel texture according to claim 1 or 2, characterized in that the treatment is carried out by a high pressure liquid columnar flow injected from an injection hole having a hole diameter of 0.05 to 1.0 mm. Manufacturing method. 4. The sum of the diameters of the injection holes is defined as 7 of the processing width of the cloth.
The method for producing a napped fabric having a novel texture according to claim 1, claim 2 or claim 3, wherein the treatment is performed with a high-pressure liquid columnar flow at 0% or more.