JPH08127932A - Method of treating surface skin of fiber, textured yarn formed by this method and knit or woven fabric therefrom - Google Patents

Abstract

PURPOSE: To enable simple production of uniform skin-treated yarn giving soft fabric hand such as raising or bulking-treated yarn by allowing wetted yarns to cross each other so that they rub themselves several times to form cracks on their outermost skin surfaces. CONSTITUTION: Yarns from the wet cheese 1 are allowed to cross each other in the rubbing zone 3 several times and wound up around the winder 5. This skin surface-treated yarn is woven or knitted to give fabrics free from breakage without fibrillation treatment at the stage of fabric. Natural cellulosic fiber also can be fibrillated in a shortened time at the yarn stage.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a method for processing the surface of a yarn composed of cellulosic fibers, regenerated fibers, protein fibers, and other fibers, processed yarns produced by this processing method, and knitting and weaving using the processed yarns. Regarding knitted fabrics.

[0002]

2. Description of the Related Art Hitherto, there has been no known processing method for subjecting yarns other than Tencel yarn to the surface treatment step of the present invention. The following processing methods have been adopted for tencel yarns. (1) Processing at the yarn stage (1-1) The yarn is knitted into a sock tube, and this fabric is fibrillated by a processing machine, and then fibrillated by an enzyme treatment. Remove fluff,
Unwrap the dough into yarn with a thread reeling machine and re-wrap it in cheese or corn for use. The term "fibrillation" as used herein refers to a phenomenon in which the outermost layer of tencel yarn is split into fibers due to physical friction or impact. (1-2) Take the cheese-like raw yarn once in the shape of a skein, and make this skein yarn into a fibril by tapping and fir-processing with a processing machine, etc. Use and use. (2) Processing at the fabric stage (2-1) Dyed the non-fibrillated yarn, knit it, and then make it into fibrils by fluffing and fir-processing with a processing machine and then enzymatically treat it with biotechnology. How to give a soft texture. (2-2) Furthermore, the raw yarn is knitted and weaved,
There has been a method in which fir processing is performed to make fibrils, and then dyeing and finishing are performed through the steps of enzyme treatment and dyeing treatment.

[0003]

SUMMARY OF THE INVENTION In the above conventional example,
(1) In the processing at the yarn stage, a complicated process of once forming a tubular knitted shape, fibrillating it with a processor, performing an enzyme treatment, and returning it to the yarn state is adopted. Therefore, not only is the processing step lengthened, but the uniformity is impaired because the processing is carried out in small quantities, and even with enzyme treatment by biotechnology, the uniformity between lots is lost, resulting in a non-uniform finish.

Further, there is a problem in that the production is small, the number of processing steps is long, and the cost is high.
In addition, (2) the processing in the dough stage is very difficult, and there is a considerable difference in the processing state depending on the quality of the processing machine, and it takes a lot of time (for example, 5 to 10 hours) to fibrillate. However, there was a problem that the occurrence rate was 20 to 30%. Furthermore, with regard to fabrics, "raw break" may occur, and wrinkles and streaks may appear after leaving for about 2-3 days after weaving.
Even in the subsequent processing in the subsequent process, there was a problem that "raw break" state, wrinkles, and streaks remained. The term "raw folding" as used herein refers to a state in which a folded portion does not return to its original position when the woven fabric is folded.

The object of the present invention is, for yarns other than TENCEL, when the surface of the yarn is subjected to physical friction or impact at the yarn stage, a splitting state occurs in the outermost layer of the fiber yarn, resulting in hair fluffing or Provides a soft texture as if it was volume-processed, provides added value and provides uniformity as a textured thread, and provides a textured method and textured thread that can be simply performed in a short time. An object of the present invention is to provide a knitted fabric using this processed yarn, which does not require processing at the stage of the fabric and does not cause inconvenience such as "raw break". Tencel yarn can also be fibrillated continuously and in a short time at the yarn stage, and can be knitted in the same way as ordinary cotton or rayon by enzymatic treatment with biotechnology, etc. It is intended to provide a processed yarn that has the property of being capable of being dyed and does not require fibrillation at the fabric stage, and at the stage of forming the fabric, the fabric can be dyed like ordinary cotton, It is an object of the present invention to provide a knitted or woven fabric of tencel yarn, which is free from generation of raw breaks, wrinkles, streaks, etc., can be reduced in cost, and can be mass-produced.

[0006]

In order to achieve the above object, as a first invention, a wetting step of applying water to a yarn,
A surface treatment process of the yarn comprises a surface treatment step in which the yarn is crossed with each other and rubbed multiple times. As a second aspect of the present invention, the surface treatment process of rubbing the yarns with each other is performed by twisting the yarns one or more times to cross each other.

A third invention comprises a wetting step of applying water to the yarn and a surface treatment step of rubbing the yarn with at least one of cloth, wood, metal, synthetic resin and leather. It was used as a method for processing the surface of the yarn. As a fourth aspect of the invention, a method of processing the surface of the yarn which is heated and / or added with a chemical in the wetting step of imparting water to the yarn.

As a fifth aspect of the invention, there is provided a method for processing a skin of a yarn, wherein steam is also used in the surface treatment step of rubbing the yarn with the yarn or the other. As a sixth aspect of the invention, a method for processing a skin of a yarn in which the yarn is a cellulosic fiber yarn (TENCEL-trade name). As a seventh invention, a wetting step of applying water to the tencel yarn, and a step of fibrillating the epidermis of the yarn by crossing the yarn with each other and rubbing the yarn a plurality of times.
A process of removing the sheath layer of the fiber yarn, which has been fibrillated by enzymatic treatment by biotechnology, and a method of processing the skin of the yarn.

As an eighth aspect of the invention, a wetting step of applying water to the tencel yarn, a step of crossing the yarns and rubbing the yarns to fibrillate them, and a softness for winding while controlling the tension tension applied to the yarns. A method for processing a yarn skin comprising a winding process, a process for removing a sheath layer of fiber yarn fibrillated by enzymatic treatment by biotechnology, a drying process, and a process for removing fluff that has not fallen off.

As a ninth aspect of the invention, a textured yarn produced by any one of the above-described machining methods is used. A tenth aspect of the invention is a knitted fabric woven by the above-described processed yarn.

[0011]

In the first aspect of the invention, any fiber yarn such as vegetable fiber yarn such as cellulose fiber and animal fiber yarn such as wool is first moistened with water, and then the yarn is crossed with the yarn. By doing the surface treatment by rubbing it several times,
The skin of the moistened yarn is subjected to physical friction to be split into fibers, and a skin layer having a special soft feel, such as fluffing, downing, and volume forming, is obtained. The wetting step is carried out by applying moisture to the yarn from the outside, or by immersing the yarn in a cheese state in a pool overnight.

In the second invention, since the surface treatment step of rubbing the threads with each other is performed by twisting each other one or more times, the physical frictional force applied between the threads is in the case of the first invention. In comparison with the above, a more preferable splitting state can be obtained according to the type and thickness of the yarn, and good fuzzing processing and volume adjustment processing can be performed. In the third invention,
The type and thickness of the thread can be changed by using at least one of cloth, wood, metal, synthetic resin, and leather in place of the intersection between the thread and the thread as a means for giving a physical frictional force or impact to the thread. A good physical friction force can be applied accordingly.

According to the fourth aspect of the invention, in the wetting step, when the heating and chemicals are used, when only the heating or only the chemicals are used, the surface treatment step is more appropriately selected according to the type and thickness of the yarn. It can be done efficiently. In the fifth aspect, more efficient physical frictional force can be given by using steam together when rubbing threads with threads or threads with cloth, wood, or the like.

In the sixth invention, the tencel yarn as the cellulosic fiber yarn is subjected to the same skin finishing as in the first to fifth inventions. In the seventh invention, the tencel yarn is moistened in the wetting step, and then the yarn is crossed to be fibrillated and subjected to an enzyme treatment by biotechnology to remove the sheath layer of the fibrillated fiber yarn. The skin processing is performed by. Since it is a method of intersecting threads with threads, there is continuity, time can be shortened, and there is uniformity.Tensel threads that have been treated with the skin have the same cheese characteristics as ordinary cotton threads and rayon threads. Now you can dye the yarn.

In the eighth invention, in addition to the step of removing the sheath layer in the seventh invention, fluff that has not fallen off can be removed, and more flexibility can be obtained, yarn dyeing is possible, and processing uniformity can be obtained. Further, when the yarn is wound, the softness of the yarn can be obtained more efficiently by using the soft winding that can wind the yarn while controlling the tension tension applied to the yarn.

According to a ninth aspect of the present invention, as the textured yarn which has been subjected to the skin treatment in the first aspect to the eighth aspect, a textured yarn which can be dyed in a cheese state and has a soft texture for fluffing and volume forming is provided. did it. In the tenth invention, a fabric woven by using the processed yarn obtained in the first invention to the ninth invention is obtained. As the processed yarn, split it into split fibers,
In addition, since it is fibrillated with respect to tencel yarn, it is not necessary to fibrillate it again when it is made into a fabric, and even when it is folded like a woven fabric, "raw break" occurs, and wrinkles, streaks, etc. occur. It disappears, has a soft texture, has fluffiness, and can give a volume feeling,
It became a knitted fabric with high added value.

[0017]

EXAMPLES The method of processing the epidermis of the present invention can be applied to any fibers such as vegetable fibers such as cellulosic fibers and animal fibers such as wool, and the added value is increased by the surface treatment. Examples of fibrillation using Tencel (trade name of British Courtles Company) as a cellulosic fiber yarn will be shown below. (Example 1) Tencel yarn 40 count is used.

(Wet Step) The tencel yarn is wet with a cheese dyeing machine or the like. Add 60% caustic soda at 60 ℃. (Rubbing step) a. Crossing angle of thread between yarns: 30 ° b. Threading was performed by twisting once by twisting 6 times at the rubbing portion.

The fibrillation rate was 50% at 400 m / min. The sheath layer was removed by a bio-processed enzyme. c. See attached Figure 1. In the figure, 1 is pre-moistened cheese, 2 is tencel yarn, 3 is a rubbing portion, and shows 1 twist and 6 crosses (a to f). 4 is a motor, 4 '
Is a conductive belt and 5 is a winding section. (Example 2) Tencel yarn 40 count was used.

(Wetting Step) The cheese was dipped in a yarn wetting dipping device for a whole day and night. Holds at 60 ℃ with a temperature controller. For harmony with productivity (winding speed), we added water and temperature control system to control automatically. (Rubbing step) The fibrillation rate was 70% after the yarn was twisted once and the crossing was passed 9 times.

As a comparative example, when the yarn was twisted once and passed through the intersection 12 times, the fibrillation rate was too high. (Example 3) Tencel yarn 40 count was used, and the wetting process was the same as in Example 1. (Rubbing process) The thread is twisted 5 times and passed twice at the intersection.

The fibrillation rate was 80% at a winding speed of 60 Hz and 270 m / min. In addition to the above-mentioned embodiment, steam (temperature 100 ° C.) can be used together during rubbing to make fibrillation efficient, and in the above-mentioned embodiment, the yarn is twisted once and twisted five times. I showed you
Within the range where there is no yarn entanglement, the friction between the yarns is taken into account and the yarn is adjusted appropriately.

Further, in the winding section after fibrillation, means such as soft winding by speeding up the feeding without applying tension is used.

[0024]

According to the first aspect of the present invention, the surface of cellulosic fiber yarns and other fiber yarns is subjected to downsizing and volume adjustment processing by the yarn wetting process and the surface treatment process, and a soft texture appears to add value. Has increased. Also, at the thread stage,
Since the fibers are in the split state, the physical frictional force is applied to each other by sequentially feeding the yarns and crossing the yarns. Therefore, it has continuity, the device is simple, and the cost can be reduced.

As in the prior art, complicated means such as previously knitting the yarn into the fabric and treating it with a treating machine is not required, and the skin of the yarn can be promptly processed in a short time. In the second aspect of the invention, the twist is provided once or more when the yarns intersect each other, so that the physical frictional force is appropriately adjusted. In the third aspect of the invention, the split fiber state is realized by rubbing the thread with the cloth, wood, metal or the like, which can be processed in a short time and can be appropriately rubbed according to the type and thickness of the thread.

In the fourth aspect of the present invention, it is possible to control the softening of the yarn and to control the splitting of the yarn by warming it when wet, using a chemical, or using both of them. In the fifth invention, steam was used to improve the temperature and wettability, and splitting was facilitated. In the sixth invention to the eighth invention, tencel yarn as a cellulosic fiber yarn is used to fibrillate at the yarn stage, so splitting is easy, continuous and uniform processing is performed. Became possible. Like cotton and rayon, it can be dyed with threads and can be reduced in cost. It is not necessary to re-fibrillate the surface-treated yarn after knitting or weaving, and the yarn itself has flexibility because the sheath layer is removed even after weaving and folding. It has become possible to provide products with high added value by preventing the occurrence of raw breaks, wrinkles, and streaks.

In particular, after the fibrillation of the yarn, the enzyme treatment by biotechnology is performed to remove the fluffy portion, whereby the flexibility is further enhanced. In the ninth and tenth inventions, as the processed yarn, the yarn can be easily dyed in an ordinary dyeing factory, the flexibility and the volume feeling are obtained, the knitting and weaving is easy, and the added value is greatly improved. Tencel yarn is also the same as ordinary yarn, it can be dyed, and weaving is easy.
The knitting and weaving are possible, and the marketability can be further improved.
Moreover, since it can give a volume feeling, it is also possible to provide a fabric having a minute fluff such as powder skin touch or micro peach skin touch with soft touch, which not only reduces the production cost but also increases the production amount and the product. It is now possible to provide products with high added value that contribute to maintaining uniformity and universalizing products.

[Brief description of drawings]

FIG. 1 is an explanatory view of an apparatus for carrying out a method for processing a skin according to the present invention.

FIG. 2 is an explanatory diagram of a state in which threads are rubbed against each other.

[Explanation of symbols]

 3 Rubbing part

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yoshinobu Yoshinobu, 522, Koryo-cho, Kitakatsuragi-gun, Nara (72) Inventor Masao Takigawa 5-7-415 Kasugacho, Toyonaka-shi, Osaka

Claims (10)

[Claims] 1. A method for processing the surface of a yarn, which comprises a wetting step of applying moisture to the yarn and a surface treatment step of crossing the yarn with each other and rubbing the yarn a plurality of times. 2. The method for processing a skin of a yarn according to claim 1, wherein the surface treatment step of rubbing the threads with each other is performed by twisting the threads one or more times to cross each other. 3. A thread surface comprising a wetting step of applying moisture to the thread and a surface treatment step of rubbing the thread with at least one of cloth, wood, metal, synthetic resin and leather. Processing method. 4. The method for processing a skin of a yarn according to claim 1, 2 or 3, wherein heating and / or chemicals are added in the wetting step of imparting water to the yarn. 5. The steam is used in combination in the surface treatment step of rubbing the yarn with the yarn or the other.
The method for processing the surface of the yarn described. 6. The method for processing a surface of a yarn according to claim 1, 2, 3, 4, or 5, wherein the yarn is a cellulosic fiber yarn (TENCEL-trade name). 7. A process of applying water to tencel yarn, a process of cross-linking the yarn with each other a plurality of times to fibrillate the epidermis of the yarn, and an enzyme treatment by biotechnology. A process for removing the sheath layer of the fibrillated fiber yarn, and a method for processing the skin of the yarn. 8. A wetting step of applying water to the tencel yarn, a step of crossing the threads and rubbing them to fibrillate them, and a soft winding step of winding while controlling the tensile tension applied to the threads. A method for processing a yarn skin, which comprises a step of removing a sheath layer of a fiber thread fibrillated by enzymatic treatment by biotechnology, a drying step, and a step of removing fluff that has not fallen off. 9. A processed yarn produced by the processing method according to claim 1. 10. A knitted fabric woven by the processed yarn according to claim 9.