JPS60110964A - Creping treatment of cloth - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Technical Field of the Invention) The present invention relates to a novel method for embossing a fabric.

(Problems with conventional technology) Conventionally, grained fabrics, represented by highly twisted fabrics, have S, S,
Twist Z, steam, stop twisting and start weaving.
Ru. This is processed using a grain raising device at a temperature higher than the twisting temperature (100 to 1
1IAI by applying mechanical kneading action in hot water (20℃)
I [The bundle is untwisted to develop U grain.

This is fixed in shape and dyed to form a grained fabric. The quality of the grain and the productivity of the grain raising process are greatly determined by whether the grain is produced sufficiently uniformly and efficiently.
Pull. In particular, it is well known that J3 is a problem in highly twisted polyester fabrics.

Generally speaking, rotary washers, which are often used as a grain raising device, are used to create a grain by spiraling the fabric one after the other and binding both ends with a thread.
Although the kneading Wj has large striking horns and a high degree of grain development, unevenness and processing wrinkles often occur due to the impact difference between the inside and outside of the fabric, and the ``andon winding'' and unraveling are all done by hand, so it is extremely difficult to wrap. It's inefficient.

Graining using a continuous relaxer improves this inefficiency, but due to the structure of the device, the impact force when rubbing the fabric is insufficient, making it impossible to obtain satisfactory graining properties.

In recent years, attempts have been made to create a texture using a liquid jet dyeing machine, but this method connects the fabric in a loop and circulates it with a liquid flow, so it is possible to omit the andon winding, but it reduces the impact force that is important. There is a drawback that the fabric is weak and the grain appearance is small.As a method to improve this, there is a method of installing an impact plate in the device and colliding the fabric with this (Japanese Patent Application Laid-Open No. 55-57066), or dropping the fabric onto a small amount of water. JP-A No. 57-21555 and others have proposed adding a so-called "chaos pot" buckling effect, but although it is certainly more effective than conventional methods, the buckling effect on the fabric is weaker. I can't get anything completely satisfying.

(Purpose of the Invention) In view of the drawbacks of the prior art, the present inventors have made extensive studies on the texture mechanism of fabric and its texture treatment method. We have discovered that there is a dramatic effect that cannot be obtained with other methods, and have arrived at the present invention.

That is, the present invention provides a method for efficiently producing a high-quality, uniformly textured fabric that is free from grain unevenness and treatment wrinkles, has excellent grain resistance, even for polyester, which is said to be particularly difficult to grain. It is.゛ (Structure of the Invention) (1) In a liquid stream texturing method in which a looped fabric is circulated while running with a liquid, the fabric is passed through a processing liquid stream from the wide side of C+ between a narrow running path section. A method for processing grain on a fabric, which is characterized by forcibly pressing and retaining the fabric.

(2) The processing method according to item (1) of the scope of the special KIFF2 requirement, wherein the traveling path portion is a trumpet-shaped nozzle pipe having a fabric retention portion.

(Mechanism of action of the invention) The biggest drawback of the graining method carried out using conventional liquid jet dyeing machines, etc. is that processing tension is applied in the length direction of the fabric connected in a loop shape, and the processing tension is applied in the length direction. Since almost no buckling occurs, it is considered that the texture is not good. For example, in highly twisted fabrics such as dillmen and georgette, the wrinkle shrinkage rate in the weft direction (width direction of the fabric) reaches the same level as that of a rotary washer, but the shrinkage rate in the warp direction (lengthwise direction of the fabric) is very low. 1/2 to 1/3 f'i
! Only IN can be obtained, and the shrinkage balance is disrupted, resulting in a vertically long grain called "flow grain 2'".Therefore, like a rotary washer, it is necessary to balance the weft and warp thread directions of the fabric. It is important to maintain low tension in both directions to ensure good grain contraction.

Furthermore, in a washer, the fabric is subjected to a strong impact force when it falls inside the drum, and the buckling effect is significant, but the number of times the fabric buckles (within the processing time) is extremely large. This is thought to be the cause of the increased graininess. For example, if J5 processes are completed for 90 minutes (drum rotation speed: 20 rl), one "Andon" (fabric: 5 Qm)
) is assumed to fall twice per rotation of the drum, and the number of buckling times is 20x90x2 = 3600 times, which is 72 times per meter of fabric. In reality, buckling occurs due to the circular motion of falling, buckling due to friction between fabrics, "slippage", etc., and the true number of buckling is estimated to be several times this number.

In addition, in the washer, the fabric is immersed in the treatment solution and then removed and dropped, so this "draining" effect is one of the reasons why the impact horns on the fabric are stronger. This can be said to be an impact characteristic unique to liquids that cannot be achieved using methods that use hot air or hot air as the graining medium.

As described above, each of the conventional texturing techniques has its advantages and disadvantages, but it is clear that the texturing technique that comprehensively incorporates the advantages of the functions of the conventional techniques is the most suitable one.

In the present invention, by adding a special process to a jet dyeing machine, it has been possible to achieve excellent graining that satisfies all the functional advantages of the various graining techniques described above.

The most important feature of the present invention is that when fabrics are tied together in a loop and run and circulated in a liquid flow treatment device as shown in Fig. The key point is to create a narrow travel route that can cause traffic to stagnate. This traveling route section has all the functions of the grain raising based on the above-mentioned grain raising concept, and is completely unseen in conventional liquid jet dyeing machines and the like.

The first characteristic feature of the running path section of the present invention is that it can impart the aforementioned buckling action in the longitudinal direction of the fabric, and can perform buckling continuously. For example, if such a path is made into a single tube, by adjusting the diameter of the tube, length, and form of the tube, the buckling culm and residence time can be adjusted, and the graininess can be avoided. The texture and texture can be freely controlled.

In the present invention, the running route section refers to a section in which the fabric is forcibly pushed;
There are no particular limitations on the shape or number of particles as long as they have the function of retaining them.

- Examples include trumpet-shaped nozzle tubes as shown in FIGS. 2 and 3. In this example, by spraying a rapid liquid stream from one nozzle branched from a single pump, the fabric is run from a wide area and then sequentially pushed into a narrow area, buckling temporarily. nWI will be given. Subsequent injection of a rapid liquid stream from the other nozzle causes the fabric to be released from the narrow outlet. This process is repeated to perform the cyclic processing J3.

The dimensions of such a nozzle should be changed depending on the type, material, thickness, etc. of the fabric to be treated, but for example, in the case of ordinary clothing fabric, the frontage of the wrapper is 110 to 90 mm.
0 stroke φ, center part 70~60mmφ, exit part 50~30mm
A melon-shaped one with a length of 1000 to 2000 mm is applicable. Other advantages of applying the nozzle are that the nozzle can be easily attached and detached, and furthermore, it can be easily manufactured into any shape such as a cone shape, a gourd shape, or a burrow, and it is easy to move the fabric. Examples include smoothness and less damage to the fabric.

The residence time referred to in the present invention is not particularly limited and should be adjusted depending on the graininess required of the fabric to be treated, but usually about 5 to 30 seconds is sufficient.

In general, if it is too short, the degree of buckling will be small, and if it is too long, it will be strongly heat set and give a bad blue color to the grained bamboo, which is not preferable.

The second characteristic feature is the ability to process fabrics under low tension. In other words, the running path portion can absorb all the tension applied during running, so the tension is reduced both vertically and horizontally, causing the self-contracting force of the silk string bundle of the fabric, and fully drawing out the untwisting torque. be able to.

The third characteristic feature is the above-mentioned "draining" action.
can be done. For example, this function is as shown in Figure 3.
It can be easily distributed by passing through many burrows in the channel (tube).

As a result of this "draining", the buckling force of the fabric becomes so strong and large that it cannot be compared with a state in which a large amount of treatment liquid is present, so that the wrinkle resistance is greatly improved.

The grain raising device applied in the present invention is, for example, a jet dyeing machine that is commercially available.

Among the products that are listed in one market are "Circular" (manufactured by Nippon Seisakusho Co., Ltd.) and "Uniace" (manufactured by Nippon Sensei Kikai Co., Ltd.).
, ``Dash Line'' (manufactured by Oshima Kikai Co., Ltd.), Pamas 7
There are many jet dyeing machines such as "Jet Dying Machine" (manufactured by Masuda Seisakusho Co., Ltd.) and "Jet Dying Machine" (manufactured by Gaston Co., Ltd.).The present invention does not need to be applied only to such dyeing machines; In short, any device that performs circulation treatment while running the fabric along with the liquid flow is sufficient, and the present invention is characterized by the fact that such existing dyeing machines can be easily modified and applied.
The fact that jet dyeing machines, which are generally available on the market, are capable of high-temperature, high-pressure processing and are manufactured from materials with excellent chemical resistance are also advantageous for the texturing process of the present invention.

The fabrics referred to in the present invention include synthetic fibers such as polyester, polyamide, and polyacrylic; semi-synthetic fibers such as M1 acetate; recycled fibers such as rayon; and natural fibers such as cotton, wool, and silk.
I! It is a knitted fabric made of miscellaneous materials alone or in a mixture, especially polynisdel and polyamide fiber bundles with a 2000T/m
It is preferable to use a fabric that has been strongly twisted before and after, or a fabric that has been falsely twisted at around 200°C and then knitted or woven.

The liquid as used in the present invention usually means a treatment liquid applied to dyeing or dyeing, and includes water, an organic solvent, a mixture thereof, a dispersion, etc. Aqueous solutions containing agents and auxiliaries [of course, alkalis,
Contains acids, dyes, resins, etc.'4'! Examples include aqueous solutions, dispersions, emulsions, etc.

Preferred treatment liquids for the graining of the present invention include, for example, rubene-based or methylnaphthalene-based carriers (for polyester), which impart swelling and shrinkage ability to the fibers and increase graining properties, or benzene alcohol. Examples include aqueous solutions such as formic acid and formic acid (for polyamide).

Further, the present invention has the feature that it is possible to carry out dyeing and dyeing processing such as dyeing and stone reduction processing at the same time as graining.

(Effects of the Invention) The present invention makes it possible to efficiently produce high-quality, uniformly textured fabrics that could not be achieved with conventional texture methods by subjecting the fabric to liquid flow treatment using a special function. It is.

The present invention will be further explained below using examples.

Example 1, Comparative Example 1.2 A polynisdel single yarn of 50 denier-136 filament 1 or more was used for the warp yarn, 15'O denier and 72 noilament polynisdel yarn was used for the weft yarn, and 200 T/m was used for the warp yarn.

The weft yarn was twisted at a rate of 2,300 threads/m and set at 85°C to make the Chilimen fabric. Then the fabric 3
00m is a jet dyeing machine "So4-Ler" RA type (
A trumpet-shaped nozzle tube as shown in Fig. 3 was manufactured using a trumpet-shaped nozzle tube (dimensions: same mouth part 110 mm).
ψ, center part 60nvnφ, exit part 40mφ, length 100
0mm, hole diameter 7mmφ, material stainless steel) The cloth was attached to the dyeing machine as shown in Fig. 2, and the cloth was circulated at 100m/min.
9 in 40 minutes in 1 g of soda ash/α aqueous solution.
The temperature was raised to <3° C., and the graining treatment was carried out at this temperature for 20 minutes. The length of the cloth that was forcibly pushed into the nozzle was 14.801 mm, and the residence time was 8.7 seconds (Example 1).

Comparative Example 1) In the same manner as in Example 1, a normal nozzle was used instead of a nozzle tube into which the same amount of chilimen fabric could be forcibly pushed.

The chilimen fabric of the same fi1 was wrapped with a conventional washer and subjected to embossment treatment in the aqueous solution (Comparative Example 2)
.

Table 1 shows the results of the evaluation of the texture of the method of the present invention and Comparative Examples 1 and 2.

Table 1 Method of the present invention Comparative example 1 Comparative example 2 Horizontal shrinkage % 35.1 27.5 '34.2 Vertical shrinkage % 32.6 15.1 31.9 Thickness mm O
,710,500,67 Graining index 812 208
731 Shrinkage ratio 0.93 0. ! i5 0,93 grain quality ◎ × Δ Grain unevenness treatment wrinkles Wo W3 W2 Workability ◎ ◎ In both cases, the higher the value, the better the graininess.

[Thickness] Measure the thickness of the fabric after creating the grain using Die A Full Thickness Nl (manufactured by Ozaki Seisakusho Co., Ltd.)! , :. Good culm graininess with numerical values.

[Grained finger 4y] This is a combination of all the above numerical values for horizontal shrinkage, polygonal shrinkage, and thickness, and the one with the highest numerical value is better.

[Shrinkage ratio] Ratio of vertical contraction divided by horizontal contraction. The higher the number of fO, the better the graininess.

[Grain Texture] When observed with the naked eye, those with a high grain density of 4 were judged to be good.

◎ mark: Good at 4fl ○ mark: Good △ mark: Fairly bad (Good W1: Almost no grain unevenness and processing wrinkles, good W2: Poor grain unevenness and processing wrinkles, W3: Grain unevenness and processing wrinkles were significant, and it was judged to be extremely poor.

[Workability (manufacturing efficiency)] Preparation for andon winding before graining and unraveling after graining, 1
Items that did not require manual work, such as a 1-b-shaped 1111 cloth, were judged to be good.

◎ mark: R is also good ○ mark: good It was possible to manufacture efficiently.Comparative Example 1 had low graininess, while Comparative Example 2
(Manufacturing efficiency was not good.

Example 2, Comparative Example 3.4 A polyamide yarn of 50D, 48 filaments 1~ is used as the tall thread, and a woolly processed polyester yarn of 75D, 24 filaments~ is used as the weft yarn, and weaved into a mixed weave dechine crepe fabric. did. Next, the fabric 500111 was jet-dyed using a 1cm "Uniace" (manufactured by Nippon Senzo Kikai Co., Ltd.) to fabricate a trumpet-shaped nozzle tube as shown in Figure 33. ” method: opening 90mmφ, center 50mm
mmφ, exit part 30+nmφ, length 1300mm, fruit hole diameter 5 fenceφ, vJ7T
Attach the cloth as shown in the figure, circulate and run at a cloth speed of 120 m, and process it in an emulsion of rubenpine-based carrier (10% O, W, ") for 50 minutes at 90°C for 25 minutes. The length of the fabric forced into the nozzle was 28.8111 mm, and the residence time was 14.81 mm.
It was 4 seconds (Example 2).

Comparative Example 3), which was subjected to the same embossing treatment as in Example 2, using a normal nozzle, except that a nozzle tube was used to forcibly press the same length of deshin fabric.

The same m of decine fabric was washed in the emulsion using a conventional washer.
“Comparative Example 4), which was rolled and treated with grain.

Table 2 shows the results of the grain C evaluation for the method of the present invention, Comparative Example 3, and Comparative Example 4. The method of evaluation is in accordance with Example 1.

Table 2 Method of the present invention Comparative example 3 Comparative example 4 Horizontal shrinkage % 38.2 28,2 37.5 Polygonal shrinkage % 37,3 18,2 36.3 Thickness 0,6
j O, 480, 61 Graining index 883 246
830 Shrinkage ratio 0.98 0.65 0.97 Grain texture
◎ × △ Grain unevenness treatment Wrinkle WOW2 W2 Workability ◎ ◎ X As is clear from Table 2, the present invention! A first grade dechine crepe fabric could be efficiently obtained.

Note that Comparative Example 3 had poor grain quality, and Comparative Example 4 had poor manufacturing efficiency.

[Brief explanation of drawings]

FIG. 1 shows a model diagram of an example of a liquid flow treatment neck that is applied to the present invention. FIG. 2 is a cross-sectional view of a trumpet-shaped nozzle pipe that is an example of the traveling route portion of the present invention, and FIG. 3 is a perspective view of a trumpet-shaped nozzle pipe that has a burrow, which is another example. . 1 in the figure: Pump 2; Heat exchanger 3; Nozzle valve 4; Nozzle pipe 5: Fabric 6; Lower tube 7; Processing liquid tank 8; Drive reel 9; Auxiliary agent input tank 10; Fabric input port 11: Air pressure valve 12; Peephole 13; Nozzle case patent applicant Toshi Co., Ltd.

Claims (2)

[Claims] (1) A looped fabric is run along with a liquid.
! In the liquid flow embossing method using circulation treatment, the fabric is forcibly pushed between the narrow running path portions from the wide side by the treatment liquid flow, and tl! [Processing method] The texture of IJ fabric is characterized by its retention. (2) The traveling path portion is a trumpet-shaped nozzle tube having a fabric retention portion.
Processing method described in ).