KR20180033171A - Barkysa - Google Patents

Abstract

A problem to be solved by the invention is to provide a fiberglass yarn made of synthetic fibers which has loops in the surface layer but is entangled with each other between the filaments and which has good handleability in high- , A light weight, a warmth, and the like.
The present invention is characterized in that it comprises a superpowder 1 having a three-dimensional crimp structure and a screen 2 fixing the superpowder 1 with the superpowder 1 interlocked with the superpowder 1, And is composed of synthetic fibers continuously forming loops.

Description

Barkysa

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a binocular yarn made of synthetic fibers having a plurality of loops made of warp yarns and yarns.

Synthetic fibers composed of thermoplastic polymers such as polyester and polyamide are characterized by high basic characteristics such as mechanical properties and dimensional stability and excellent balance. The fiber materials utilizing these fibers are widely used as interior materials, vehicle interior, and industrial applications as well as materials for clothing, by forming various structures by high-order processing of fibers obtained by spinning. It is no exaggeration to say that the development of new technology for synthetic fibers has been technological innovation with the imitation of natural materials as motivation. Thus, various technical proposals have been made in order to express the function derived from natural complex structure form by synthetic fibers. For example, by simulating a cross section of a silk, special touch such as scroop and flexibility is exhibited. It is giving special color by imitating bamboo butterfly. Also, by imitating leaves of lotus flowers, the fabric has a waterproof performance. In addition, there is an attempt to obtain a fibrous structure having functions such as soft touch, light weight, and warmth of natural hair follicles.

In natural wool, a mixture of a down ball (in the form of a flock) and a feather (in the shape of a feather), which is generally taken from a chest of a waterbird, is used. They are derived from specific structural forms of the keratin fibers, are rich in soft touch, easily fit to the body, and exhibit excellent light weight and warmth. For this reason, a product used as a face for filling a natural hair wool is also recognized by ordinary users, and has been widely used as a clothing article such as a stool or a jacket. However, there is a limit to the capture of waterbirds from the viewpoint of nature protection, and there is a limit to the total production of natural fur. In addition, there is a problem that the supply amount fluctuates largely due to the occurrence of an abnormal weather or infectious diseases, and the price increase is also a problem. In addition, the use of natural wool was often problematic due to the peculiar odor and animal allergies, despite the fact that it has undergone many processes such as screening, screening, disinfection and degreasing. In addition, in Europe and elsewhere, there is a movement to exclude the use of natural wool. For this reason, it has attracted attention as a middle cotton material by synthetic fibers capable of stable supply and the like.

Although a large number of synthetic fibers have been proposed since ancient times, there has been no case where natural hair wool has been reached in that it is a basic characteristic of bulkiness, compression recovery, and soft touch.

BACKGROUND OF THE INVENTION [0002] Conventionally, a real processing technique used for the purpose of high value addition of fibers and the like is, for example, an actual twisting process after being actually twisted on a fiber or by fusing one or two or more kinds of fibers with a fluid processing nozzle or the like, Is generally known. Since the processed yarn having such bulkiness is basically a long fiber, it can be processed into various forms, and it is also considered that the yarn is applied to the double-side material by taking advantage of soft touch with the vulcanis of the processed yarn.

Patent Document 1 discloses the following machine. First, two kinds of fibers are used, and yarn shaking or the like is applied to only one of the fibers, and the yarn is fed to a waist gauge. Thereafter, again, the processed yarns of the bulkiness are obtained by scratching with two disks or the like. After the opening process, a heat treatment is added, or the superfine threads are fused together by a binder in order to strengthen the fixing of the superfine. Obviously, according to the method disclosed in Patent Document 1, there is a possibility that a ballistic yarn having a loop formed by superimposition can be obtained by adjusting the degree of yarn shaking or the like, in accordance with the conventional technique.

In Patent Document 2, there is disclosed a technique in which superabsorbent supplied in excess is fed and fixed with a difference in thread length by jetting pressure air from a vertical direction to the running yarn in the interlocking nozzle to entangle and open. In Patent Document 2, similarly to Patent Document 1, it is possible to obtain a processed yarn having a bulkiness in which a swell having a loop shape exists.

In such a looped yarn, there is a mutual force between the fibers, which is generally recognized as a fastener phenomenon, and is known to affect unfavorable unwinding in higher-order processing, deterioration of the feel of the fiber product and durability have. For this reason, there is also an attempt to improve the fluid machining starting point.

In Patent Document 3, there is a disclosure of a fluid injection embroidery thread which is made of polytrimethylene terephthalate (3GT) as a loop portion, thereby making it difficult to cause a fastener phenomenon by using the elasticity of 3GT fibers.

Japanese Patent Application Laid-Open No. 2011-246850 Japanese Patent Application Laid-Open No. H06-67430 Japanese Patent Application Laid-Open No. 11-100740

In the prior art Patent Document 1, there is a possibility that the binder can be applied as a double-sided material because the loop is fixed by preliminarily fusing the binder and fusing it after processing. However, if the snake yarn is actually tangled to the partially protruding loop yarn, and if it is formed by scratching with a mechanical massager rubber or the like, the loop is partially broken or deteriorated. When the processed yarn is used as the middle yarn, a plurality of yarns are bundled, or the like. As a result, the napping is broken at the portion where the napping is much, and there are cases where the unwinding of the unwinding in the forming process and the passing of the process in the forming process are deteriorated. In addition, there is a problem that when the processed yarn is charged, the yarn is generated and the feel is deteriorated. In addition, there is also a problem that the foreign objects become more conspicuous when the mutually adjoining portions are fused and fixed.

According to the technique of Patent Document 2, when the running yarn is disturbed in the nozzle and the fiber is subjected to carding treatment, the yarns are shaken in a very short cycle to generate mutual forces of the running yarns. Therefore, a small loop influenced by the shape of the nozzle itself is excessively formed at a high frequency. In addition, the size of the loop varies in the direction of the fiber axis, and the bulkiness is insufficient. Further, the loop yarn formed in the nozzle is retained inside the nozzle, and then discharged to the outside of the nozzle by the jet air. For this reason, the size of the loop or the length of the warp yarn forming the loop changes in the direction of the fiber axis of the processed yarn, thereby forming looseness. In this case, particularly, the snakes having looseness tend to be entangled with the other, and eventually there is a problem that the passage of the process in the high-order machining and the entanglement between the nostrils are connected to the foreign object.

In the technique of Patent Document 3, it is possible to suppress the fastener phenomenon by using the 3GT which is elastically deformed in an elongated manner, and the loops are compactly gathered even when the yarn length difference is small and the repulsive force is moderate. However, since the loops are as small as about 0.6 mm and the number of loops is increased toward the bulkiness, the density of superabrasive yarns increases, so that entanglement of the superabrasions tends to occur mutually, and the fastener phenomenon can not be suppressed in some cases.

It is desired to solve the conventional problems, and to have a high bulkiness comparable to that of natural wool, and a double-sided material having entanglement between the processing yarns while having compressive recovery property. In addition to soft touch, lightweight, excellent in warmth and the like.

The above object is achieved by the following means.

1. Supercharging with a three-dimensional crimp structure, and

And a judging process of fixing the snare by the hanging with the snare,

Wherein the yarn is substantially not broken but forms a loop continuously.

2. As a preferred embodiment of the above-mentioned bulky yarn, there is the following.

(Per cent / core) of judging and superannuation is in the range of 0.5 to 2.0,

The number of the seams and seams in the fiber axis direction of the yarn is 1 / mm to 30 yarns / mm,

Wherein said crimped crimped structure has a radius of curvature of 2 mm to 30 mm.

3. The single yarn fineness of the fibers constituting the vulcanization yarn is not less than 3.0 dtex,

Wherein the fiber-to-fiber static friction coefficient is 0.3 or less.

4. The examination described in any of the above three-dimensional crimps.

5. The hollow fiber according to any one of the above-mentioned items, wherein both or one side of the fiber is hollow hollow fiber having a hollow ratio of 20% or more.

6. The yarn of any one of the preceding claims, wherein the yarn is single-component fibers of the same type.

There are the following products using the above-mentioned binocular yarn.

7. A fiber product comprising at least a part of the above-described yarn.

(Effects of the Invention)

The yarn of the present invention has a loop shape, and entanglement and the like between the yarns are suppressed. The yarn has good handleability in high-order processing, soft touch, light weight and excellent warmth.

1 is a schematic side view of an example of a binocular of the present invention.
Fig. 2 is a schematic diagram for explaining a method of measuring a workpiece center line. Fig.
3 is a schematic diagram for explaining a three-dimensional crimp structure.
Fig. 4 is a schematic process diagram schematically showing an example of a method for producing a vulcanization yarn of the present invention.
Fig. 5 is a schematic side view for explaining a suction nozzle used in the method of manufacturing a bulky yarn of the present invention. Fig.
6 is a schematic cross-sectional view for explaining a discharge hole of a spinneret for a hollow section to be used in the method for producing a vulcanization yarn of the present invention.

Hereinafter, embodiments for carrying out the invention will be described. Since the yarn of the present invention can be obtained by processing multifilament yarns, the intermediate yarns are sometimes referred to as " yarns "

The yarn of the present invention has a structure composed of synthetic fibers and bulky. This structure is composed of a superuniverse that forms a loop and a superunit that substantially fixes the superuniverse since it interferes with the superuniverse. It is characterized by that the sniper has a three-dimensional crimp structure. Further, in the present invention, the superfine yarn is not substantially broken. In other words, the snowshoe is almost continuous with the punishment. Then, the superimpositions continuously form a plurality of loops.

As used herein, the term " synthetic fiber " The synthetic fibers may be fibers prepared by melt spinning or solution spinning. Among the polymer polymers, the thermoplastic polymer capable of forming a melt is suitable for use in the present invention because it can produce a fiber for use in the present invention by employing melt spinning with high productivity.

Herein, the thermoplastic polymer is, for example, polyethylene terephthalate or a copolymer thereof, polyethylene naphthalate, polybutylene terephthalate, polytrimethylene terephthalate, polypropylene, polyolefin, polycarbonate, polyacrylate, polyamide, poly And polymers capable of melt molding such as lactic acid and thermoplastic polyurethane. Among these thermoplastic polymers, polycondensation polymers typified by polyesters and polyamides are crystalline polymers, and since they have high melting points, they are free from deterioration or sediment even when heated at a relatively high temperature in a post-process, a molding process, desirable. From the viewpoint of the heat resistance, it is preferable that the melting point of the polymer is 165 DEG C or higher.

The synthetic fibers used in the present invention may contain various additives such as inorganic materials such as titanium oxide, silica and barium oxide, carbon black, coloring agents such as dyes and pigments, flame retardants, fluorescent whitening agents, antioxidants or ultraviolet absorbers.

As shown in Fig. 1, the embossing yarn of the present invention is composed of a super warp yarn 1 forming a loop and a judging yarn 2 practically superimposing superfluous yarn since they are stuck to superfine yarn.

See FIG. It is preferable that the examination is in the range of 3 to 0.6 mm in the center line of the processed yarn as filaments. The workhorse center line means a straight line connecting the apostrophe guide 4 when a processed yarn is hooked in a predetermined length between a pair of yarn guide 4. The filament having a distance (5) of 0.6 mm or less from the center line of the processed yarn is judged according to the present invention and becomes a supporting yarn of the loop of the war yarn. It is also preferable that the warp yarn is a filament and protrudes at a loop length of 1.0 mm or more from the center line of the processed yarn. The supercharger is responsible for the bulkiness of the thread of the present invention. In the present invention, the judging fixes the sniper to form the loop. This point of attachment has a role of maintaining a loop made of superhero, which is a feature of the present invention, and preferably exists at a certain period. From this point of view, it is preferable that the dead point of the examination and the superannuation in the puncture is 1 / mm to 30 / mm per 1 mm of the puncture. In the related range, even after the three-dimensional crimp is expressed in the superabsorbent yarn, there is a loop with an appropriate gap. From this point of view, it is more preferable that the above-mentioned crossing point exists at 5 / mm to 15 / mm.

In order to evaluate this examination or determination of novice or continuously evaluate the number of loops per unit length or the number of dead points in the yarn length direction of the yarn, a napping type fluff detection device can be utilized. For example, a 0.6 mm and 1.0 mm distance from the center line of the workpiece is evaluated using a photo-laminator (TORAY FRAY COUNTER) under the conditions of a yarn speed of 10 m / min and a main event tension of 0.1 cN / dtex.

The superabsorbent yarn having the loop of the present invention has a protruding shape in cross section of the embossing yarn viewed from the yarn length direction of the embossing yarn and forms a large loop as compared with a general interlaced yarn or a turbulent yarn.

The size of the loop referred to here refers to the distance 5 from the processing center line 3 shown in Fig. 2 to the apex of each loop. The size of the loop is measured from the observed image by observing the naked eye yarn which has been stuck on a pair of the apodization guides 4 at a predetermined length. One randomly selected one is photographed so that ten or more loops formed on the bulky yarn can be observed, and the distance (5) from the center line of the looper to the loop apex is measured at 10 loops in the image. A total of 10 image shots are taken for each of these tasks, and the size of 100 loops in total is measured in units of millimeters per decimal point. The average value of these values was calculated, and a value obtained by rounding off the second decimal place or less was defined as the size of the loop in the sky key.

According to the study by the inventor, it is preferable that the size of the loop protrudes from the center line of the processed yarn in the range of 1.0 mm to 100.0 mm, and if it is within the range, the loop structure of the warp yarn is entangled The effect of inhibition is improved. Further, considering the workability to be described later, more preferably 3.0 mm or more and 70.0 mm or less. In consideration of the fact that repetitive compressive recovery deformation is applied under harsh environments such as the material of a sports garment, it is particularly preferable to set it to 5.0 mm or more and 60.0 mm or less.

It is preferable that the shape of the loop composed of the snare yarn is a kurnodal loop (tear drop shape) rather than an arcuate loop formed by general interlocking. In the case of an arcuate loop, there is a feature that the dead point of examination and superposition is not fixed and the loop moves freely to some degree. Therefore, when compression strain is applied to this thread, the dead point moves. Because of this, after the compression deformation, it is difficult to return to the original shape, which is disadvantageous from the viewpoint of durability of the bulkiness. On the other hand, in the case of a kurnodal loop, since the loop is almost fixed at the point of intersection with the examination, the loop of the sniper can easily return to the original shape even after the compression deformation. In order to exhibit the repulsive bulkiness This shape is preferable. However, this kurnodal-type loop has an unfavorable shape because it is fixed in terms of suppressing mutual entanglement between superuniverses. In the present invention, the three-dimensional crimped snaking suppresses entanglement of the snaking yarns. Further, it has been found that high-bulkness can be manifested by three-dimensionally crimped or loop-shaped.

It has been found that the above-mentioned effect tends to be deteriorated when the loops made of superhero are broken or partially deteriorated in the middle. For this reason, in order to achieve both of the opposite characteristics, that is, the suppression of mutual entanglement with a non-conventional balun key, the superabrasive is not substantially broken in the present invention. Particularly, it is preferable that the loop is not substantially broken in the middle of the loop.

In the present invention, the breakage of the loop is judged by judging whether or not the loop from the dead point to the next dead point (i.e., one loop) Photographing and observing at a magnification that can be confirmed at 10 or more positions in the longitudinal direction of the yarn. That is, in the 10 captured images, the break points of the sniper per millimeter of the ball screw yarn were counted for each of the ten loops. The breaking point of the counted loop was averaged and rounded to the second decimal place to obtain the breaking point (mm / mm) of the loop. In this case, the yarn breakage in the present invention is not substantially broken, in other words, the yarn breakage is substantially continuous in the length of the yarn crimp yarn. If it is in the relevant range, there is substantially no superhero yarn free end, and it is possible to form a loop that is not entangled with other superhero yarns.

In the case of adding an opening process after applying the conventional actual twist, or disturbing or opening the inside of the nozzle by powerful air injection, the running yarn may be blown into the nozzle made of a metal with high frequency and may be broken or deteriorated. In addition, when a loop is to be formed, it is necessary to squeeze between rubber discs or the like, so that the superfine yarn is broken or the mechanical properties are largely deteriorated. For this reason, it is considered that the broken snake yarn is wound around another snag or entangled with each other to promote the fastener effect, thereby restricting the structure of the thread and the higher order machining. In the present invention, this point is greatly improved, and the effect produced by squeezing with the three-dimensional crimp as described above can be sufficiently exhibited.

The supercharger responsible for the bulkiness has a three-dimensional crimp structure and forms a continuous loop without being substantially broken. As shown in Fig. 3, the three-dimensional crimp structure in the present invention has a spiral structure of filament yarns.

The evaluation of the three-dimensional crimp is evaluated by selecting ten or more superficial scratches at each of 10 randomly selected positions from the bagkies and observing each superficial scratch with a digital microscope or the like at a magnification that can confirm the crimp shape. In this image, when the observed sniper has a spiral-shaped swirling shape, it is determined that the sniper has a three-dimensional crimp structure. If not, it is determined that the snug has no crimp structure.

These three-dimensional crimp-like fibers resilient to stretch and compressive deformation. The present invention has a repulsive nature because of its structure. When the filler yarn of the present invention is combined to fill yarn bundles as a bundle of yarns, the unique repulsive property produced by the weaving yarn of the present invention exhibits a good tactile feeling of the filling material, and even when repetitive compression recovery is applied Since the superabsorbent to support this is recovered like a spring, it is preferable from the standpoint of suppressing sediment. The size of a three-dimensional crimp with latent barriers obtained by conventional processes such as conventional side-by-side composite fibers or hollow fibers is generally in the order of microns (10 ^-6 m). In order to enhance the effect of the present invention, it is preferable that the millimeter is larger than the millimeter (10 < ^-3 > m). In the present invention, it is possible to freely control the puncture and rebound characteristics of the cross section of the embossed yarn in the lengthwise direction of the embossed yarn by the size of the three-dimensional crimp, It is also possible to suppress entanglement between the snakes of one of the objects. Particularly, by making the size of the crimp to be a millimeter, entanglement between the warp yarns can be suppressed while ensuring compression strength and baluniness of the warp yarn at the same time.

In the present invention, it is preferable that the radius of curvature of the spiral structure spirally turning is in the range of 1.0 to 30.0 mm. The radius of curvature of the spiral structure used here is an image which is observed two-dimensionally by a digital microscope or the like in the same manner as the determination of the presence or absence of the three-dimensional crimp. As shown in Fig. 3, the radius of the curvature 6 formed by the fiber having the spiral structure is taken as the radius of curvature. Ten or more superabrasions were taken at 10 randomly selected sites from the bulkhead, and each superabsorbent was observed with a magnification capable of confirming the shape of the crimp with a digital microscope or the like, so that a total of 100 superabsorbances were measured in millimeters Measure to the seat. The simple average of these measured values was calculated, and the value obtained by rounding off the second decimal place or less was defined as the radius of curvature of the three-dimensional crimp structure.

It is more preferable that the radius of curvature is 2.0 to 20.0 mm. In the related range, the snakes are brought into contact with each other at a point, while having a suitable repulsive force against the compression on the cross section seen in the longitudinal direction of the pulp key cylinder, thereby exhibiting a sufficient repulsive bulkiness. It is particularly preferable that the thickness is 3.0 to 15.0 mm. There is no problem in long-term durability in the related range, and the effect of the present invention effectively works if it is applied to a material of a garment to which repetitive compression recovery is applied, particularly to a material of a sports garment used under a harsh environment. This is because the single yarn itself has a three-dimensional three-dimensional shape, rather than a two-dimensional bending of single yarns that can be imparted by mechanical indentation, and has a spiral or similar structure. Since the crimp shapes of these are micron-order and fine crimp, the fine spiral structures are intertwined with each other, thereby facilitating the fastener effect.

On the other hand, the inventors of the present invention focused on the shape of the short fibers in order to achieve inhibition of mutual entanglement between one of the problems, that is, one of the problems. As a result, it has been found that a phenomenon opposite to the conventional recognition occurs when the sniper is composed of a single yarn having a three-dimensional crimp of millimeter order. This is thought to be due to the fact that the embossed yarns have a preferable exclusion volume even when the yarn bundles are made into yarn bundles by having three-dimensionally crimped bundles of milli-order, and the binding between bundles of yarn is greatly suppressed. Namely, according to the definition of the present invention, the loop has a relatively large movable space having a hemispherical shape with a radius of 1.0 mm or more around the point of intersection . In this case, since the superabsorbent yarns having three-dimensionally crimped bundles each having an overwhelmingly large size with respect to the fiber diameter are in contact with each other at points and are repulsive to each other, one superabrasive yarn can exist alone without entanglement. In addition, in addition to the moving space described above, in addition to the moving space described above, in the case of superimposed yarn having a three-dimensional crimp, the superimposed yarn itself can be stretched like a spring in the fiber axis direction. Therefore, It is.

Further, the three-dimensional crimping of the warp yarn also works effectively from the viewpoint of bulkiness, which is a basic characteristic of the present invention. The above-mentioned point contact between snakes causes an effect of repelling each other even in a single yarn, and it is possible to maintain a state in which a loops made of super warp yarns as well as initial bulkiness are opened radially over time. It is difficult to achieve a behavior similar to that of the superabsorbent spring of the present invention by the conventional simple straight stranding.

The morphological feature of the present invention that the superabsorbent forms a loop and has a three-dimensional crimp structure also has an effect on lowering the friction coefficient. This is the effect of contact with the guitar in point, as described above, and is one of the effects of the present invention having the specific structure of the present invention. In the examination by the inventors of the present invention, it is preferable that the inter-fiber static friction coefficient is 0.3 or less in order to prevent entanglement between the fibers of the bulkiness yarns. The fiber-to-fiber static friction coefficient referred to herein is measured by a radar type friction coefficient tester in accordance with the method described in JIS L 1015 (2010) "Chemical fiber staple test method". On the other hand, since the above-mentioned JIS stipulates the staple, the measurement requires the entire operation such as carding, but in the measurement according to the present invention, the processing of carding or the like is not performed, .

When the fiberglass yarn of the present invention is used as a fiber product, the fiber tends to have a high tactile feel when the fiber slides while being compressed, so that the coefficient of static friction between fibers is preferably low. The inter-fiber static friction coefficient is more preferably 0.2 or less, and particularly preferably 0.1 or less.

In addition, from the viewpoint of desiring a better tactile sensation than the puncture of the present invention, the single strand ratio (seconds / core) of the warp and weft is preferably in the range of 0.5 to 2.0. If it is in the relevant range, the fineness of the warp yarn and the judging yarn is near, and there is no case of feeling a foreign object when the yarn is compressed. In addition, as a range in which the volume can be efficiently processed, the single fiber island ratio (sec / core) is 0.7 to 1.5. Further, in the present invention, it is possible to combine various fibers, but it is preferable that the single yarn fineness and the mechanical properties are the same in the judging and the warp yarn from the viewpoint that the above-mentioned efficient fluid processing and a foreign body feeling when compressed can not be felt at all Do. Concretely, in the present invention, it is preferable to prepare two or more fibers produced under the same preparation conditions, and use them for examination and superimposition, and it is particularly preferable that these fibers are composed of one kind of resin (singly).

From the viewpoint of suppressing the friction coefficient and the entanglement with each other, it is preferable to have a three-dimensional crimp structure of the millimeter in addition to the superimposition. The radius of curvature of the spiral structure of this examination is preferably in the range of 1.0 to 30.0 mm. In the related range, there is a space between the filaments derived from the three-dimensional crimp of the examination at the point of intersection of the examination that substantially fixes the superabsorbent. In this case, when the tension is not applied to the embossed yarn, the point of the loop can move to a limited space even in the longitudinal direction. Therefore, the moving space of the embroidery yarn is widened and the effect of suppressing entanglement and soft touch of the present invention It is because it becomes remarkable. On the other hand, in the case where tension is applied to the vulcanization yarn, since the examination is extended, the binding force at the point of intersection between the examination and the superannuation increases, and the effective effect is exhibited on the practical side, The three-dimensional crimp of this examination can also be confirmed from the observation of the examination taken at random according to the above-described method of evaluating the three-dimensional crimp of the crimper. The radius of curvature of the spiral structure of the examination is more preferably 3.0 to 15.0 mm. The effect of the present invention effectively works when applied to the material of a garment or the material of a sportswear in which repeated elongational deformation is applied to a vulcanizer.

It is preferable that the examination and / or napus used in the present invention is a hollow section fiber. Further, it is more preferable that the fibers having a three-dimensional crimp structure are hollow cross-section fibers. This is because there is an advantage that the size of the three-dimensional crimp can be relatively freely manufactured from a large size to a small size.

Also, hollow section fibers are preferable from the standpoint of protrusion of the loop. The reason for this will be described below. In the binoculars of the present invention, the loops made of superhulls can protrude by the stiffness of the superpowers starting from the point of intersection with the judging. Further, in consideration of the prevention of sediment, it is preferable that the mass of the superabsorbent itself is also small. Therefore, from the viewpoint of light weight of the nodules, it is preferable that the hollow section fibers have a hollow ratio of 20% or more. Here, the hollow ratio is the volume fraction of a portion of the fiber where no material exists.

For example, it can be measured by the following method. After the cutting is performed to observe the cross section, the cross section of the fiber is photographed with an electron microscope (SEM) at a magnification capable of observing cross sections of 10 or more fibers. 10 randomly selected fibers are extracted from the photographed image, and the circle equivalent diameter of the fiber and the hollow portion is measured by using image processing software, and the area ratio of the hollow portion is calculated therefrom. The above operation is performed on 10 images taken, and the average value of 10 images is taken as the hollow ratio of the hollow section fibers of the present invention.

In the case of circular hollow fibers, the following simple methods for evaluating the hollow ratio are available.

The side face of the hollow section fiber is observed by an enlarging means such as a microscope, and the fiber diameter in terms of the circular section is measured from the image. From the fiber diameter and the density of the material of the fiber, it is also possible to calculate the ratio of the fineness actually measured to the fineness of the non-hollow fiber as the hollow ratio.

From the viewpoint of light weight and warmth, which are the object of the present invention, the hollow fiber of the present invention preferably contains air more preferably has a hollow ratio of 30% or more. In a related range, it is possible to realize good lightness by holding a bundle of embossed keys. Further, since it means that air having a low thermal conductivity is contained more in the inside, the warmth can be further enhanced. From this viewpoint, the higher the value of the hollow ratio is, the better, but it is preferable that the hollow ratio is 50% or less as a range that can be stably produced without sacrificing the hollow portion in the production process or the fluid processing process Do.

The yarn constituting the yarn of the present invention preferably has an appropriate repulsive property. In view of the problems to be solved by the present invention, it is preferable that the monofilament fineness of the synthetic fibers constituting the silk yarn is 3.0 dtex or more. Further, in the case of using a filling material, deformation such as repeated compression recovery is applied. Therefore, the constituting filaments should have appropriate rigidity and more preferably have a single fiber fineness of 6.0 dtex or more. The term "fineness" as used herein means a value obtained by calculating the mass per 10000 m from a simple average value obtained by measuring the fiber diameter, the number of filaments and the density, or the weight per unit length of the fiber plural times.

The puncture strength of the present invention is preferably 0.5 to 10.0 cN / dtex and the elongation is 5% to 700%. The strength referred to here is a value obtained by calculating a load-elongation curve of a yarn under the conditions shown in JIS L1013 (1999), and dividing the load value at break by the initial fineness. The elongation is the elongation at fracture divided by the initial test length. The breaking strength of the present invention is preferably 0.5 cN / dtex or more, and the upper limit of practicability is 10.0 cN / dtex in order to be able to withstand the processability and practical use of the higher-order processing step. The elongation is preferably 5% or more in consideration of the processability of the post-processing step, and the upper limit of the elongation is 700%. The breaking strength and elongation can be adjusted by controlling the conditions in the manufacturing process, depending on the intended use. The puncture strength of the present invention is preferably 0.5 to 4.0 cN / dtex in the case of using the material of the general garment such as inner or outer or the needle bed such as a bed cover or a pillow. In addition, it is preferable that the breaking strength is 1.0 to 6.0 cN / dtex in the case of the material use of a sport garment which is relatively difficult to use.

The fiberglass yarn of the present invention can be made into various fiber products by various fiber structures such as a fiber wound package, a tow, a cut fiber, a cotton, a fiber ball, a cord, a pile, a straight piece and a nonwoven fabric. The textile products referred to herein may be used for a variety of purposes such as lifestyle applications such as general clothing, sports wear, clothing materials, interior products such as carpets, sofas, curtains, car interior products such as car seats, cosmetics, cosmetics masks, wiping cloths, Filters, and hazardous material removal products. Particularly, it is preferable that the yarn of the present invention is utilized as an intermediate yarn from the effect of suppressing entanglement with the yarn. In this case, the middle surface may be formed into several to several tens of bundles by filling the side surface, or may be a sheet-like article such as a nonwoven fabric. Particularly, filling of a sheet is easy on the side surface, and it is easy to adjust the filling amount according to the use. As a result, it is not necessary to perform sewing unnecessarily, because it is a lightweight and heat-insulating material of the base paper, and there is no fear of coming out from the side surface. Therefore, there is no restriction on the form of the fiber product, and a complicated design is possible.

Hereinafter, an example of the method of producing the present invention will be described.

The fiber used in the present invention may be a synthetic fiber obtained by making a thermoplastic polymer into a fiber by a melt spinning method.

The spinning temperature of the synthetic fiber used in the present invention is a temperature at which the polymer used exhibits fluidity. The temperature at which the fluidity is exhibited varies depending on the molecular weight, but the melting point of the polymer may be set as a reference, and it may be set to the melting point or more and the melting point + 60 占 폚 or less. When the melting point is lower than +60 占 폚, the polymer is not thermally decomposed in the spinning head or the spinning pack, and the decrease in molecular weight is suppressed. In addition, the discharge amount is stable and ranges from 0.1 g / min / hole to 20.0 g / min / hole per discharge hole. In this case, it is preferable to consider the pressure loss in the discharge hole that can ensure the stability of discharge. The pressure loss is preferably in the range of 0.1 MPa to 40 MPa and can be adjusted by the melt viscosity, the specification of the discharge hole and the discharge amount of the polymer to be used.

The molten polymer discharged in this way is cooled and solidified, and is made into a fiber by applying an emulsion and being pulled by a roller. Here, the take-in speed may be determined from the discharge amount and the target fiber diameter, but it is preferable that the take-up speed is in the range of 100 to 7000 m / min for stable production. From the viewpoint of improving the mechanical properties by making the synthetic fibers highly oriented, stretching may be performed once after being wound, and stretching may be performed continuously without winding once. As the stretching condition, for example, in a stretching machine comprising a pair of rollers, the ratio of the first roller set to the glass transition temperature to the glass transition temperature and the second roller set to the crystallization temperature (the second roller / The first roller) and then wound by a winding machine. In the case of a polymer which does not exhibit glass transition, the dynamic viscoelasticity measurement (tan?) Of the conjugate fiber is carried out and the temperature of the peak of the temperature / tan? Curve (at the highest temperature in the case of pluralities) It may be employed as the roller temperature. Here, from the viewpoint of enhancing the draw ratio and improving mechanical properties, it is also preferable to provide this stretching step in multiple stages.

The cross-sectional shape of the synthetic fiber of the present invention need not be particularly limited, and can be changed by changing the shape of the discharge hole in the spinneret, so that a general circular cross section, a triangular cross section, a Y- And so on. Further, it is not necessarily made up of a single polymer, but may be a composite fiber composed of two or more kinds of polymers. However, from the viewpoint of expressing the three-dimensional crimp of superabsorbent yarn, which is an important requirement of the present invention, it is appropriate to use the above-mentioned hollow, hollow, or side-by-side type conjugated fiber bonded with two kinds of polymers. In these fibers, three-dimensional crimp can be expressed by the existence of foreign matter in the cross section of the single fibers by performing the heat treatment after the preparation and the actual processing. For this reason, in the fluid processing to be described later, the so-called straight fibers are subjected to the heat treatment after the loop forming step by the superabrasion, whereby the three-dimensional crimping is expressed.

It is easy for the yarn to stably run without causing clogging by nozzles or the like in which the fibers are straight at the time of bulk processing. Further, even in forming the loop of the present invention, it is possible to efficiently perform the examination and the spinning of the nappy yarn, and the loops become very close to each other in the fiber axis direction of the processed yarn. By subjecting the processed yarn having this loop to a heat treatment based on the crystallization temperature of the polymer, the three-dimensional crimp is expressed and the yarn becomes a yarn. The three-dimensional crimp of the superabsorbent yarn exhibits good bulkiness in both the circumferential direction and the cross-sectional direction of the processed yarn, and it is preferable to suitably control it in accordance with required characteristics.

From the viewpoint of controlling the degree of crimp development after the heat treatment, it is more preferable that the fibers used are hollow section fibers made of a single component polymer. In the case of a hollow section fiber, it has an air layer having a low thermal conductivity as the center of the fiber. For this reason, for example, after discharging from a spinneret capable of forming a hollow cross section, one side is forcibly cooled by excessive cooling wind or the like, or heat treatment is performed on one side excessively with a heating roller or the like during drawing, There is a structural difference in the direction. In the case of a hollow section fiber made of a single component polymer, it is possible to relatively easily obtain a three-dimensional crimp from a large size to a small size by the above-described operation, in addition to being capable of being formed by a single radiator. Therefore, from the viewpoint of crimp control by the above-described operation, which is preferable for use in the present invention, it is particularly preferable that the hollow ratio is 20% or more and 30% or more as described above.

Next, an example of a method for producing the fiber from spinning by spinning will be described.

The manufacturing method of the bulky yarn exemplified here is largely composed of two processes. The first step is a bulk-knitting process in which a loop comprising a superabsorbent is formed by causing the fluid to squeeze and snaking. The second step is a heat treatment step of heat-treating the yarn after the bulk-machining to develop the three-dimensional crimp in the superabrasive.

An example of a method for producing a battery of the present invention will be described with reference to a schematic flowchart of Fig. In this first step, the synthetic fiber 8 to be a raw material is drawn out by a feed roller 7 having a nip roller or the like and drawn by a suction nozzle 9 capable of ejecting a pressure hole, and is sucked as a draft.

In this suction nozzle 9, the flow rate of the compressed air injected from the nozzles has a minimum amount of tension necessary to be inserted into the nozzles from the supply rollers so that the flow rate of the compressed air can be stably maintained between the supply rollers and the nozzles, It is preferable to inject a flow rate for running. The optimum flow rate varies depending on the pore diameter of the suction nozzle to be used. However, as the range in which the yarn tension can be given and the formation of the loops described later can be smoothly performed, the airflow velocity in the nozzle is 100 m / s or more Standard. The target of the upper limit value of the airflow speed is set to 700 m / s or less, and if it is in the related range, the running yarn runs stably in the nozzle without causing the yarn running yarn to swing or the like due to the excessively injected air.

Further, from the viewpoint of preventing disturbance and carding of the processed yarn in the suction nozzle, it is preferable that the jetting angle of the compressed air (16 in Fig. 5) is a propellant jet jetted at less than 60 degrees with respect to the running yarn. This is because the loop can be formed homogeneously by the superimposition with high productivity. Needless to say, it is not possible to fabricate the binocular of the present invention by machining by the vertical jet which injects the fluid at 90 degrees with respect to the running yarn. However, it is not possible to produce the yarn of the running yarn by jetting the jet in the vertical direction, The processing by the propulsion jet is preferable from the viewpoint of suppressing entanglement between the single yarns. The processing by the propulsion jet can also suppress the formation of the arcuate small loops which are easy to form in the case of the vertical jet, in a short cycle.

It is preferable that no disturbance or carding is carried out in the suction nozzle in order to form a loop made of superabsorbent yarn necessary for the present invention. It is more preferable that the injection angle of the compressed air is 45 DEG or less with respect to the running yarn from the viewpoint of running the multifilaments composed of a single number of yarns in a single number without opening the yarn in the nozzle. In order to form a loop outside the nozzle described later, it is desirable that the jet flow immediately after the nozzle has high stability and propulsive force. From this viewpoint, it is particularly preferable that the jetting angle is 20 DEG or less with respect to the running yarn.

The yarn leading to the suction nozzle may be formed in one feed or in two feeds. However, in order to produce the yarn of the present invention, two feeds are preferably used. The term " 2 feeds " as used herein means a method of feeding the inspection and the supercharging to the nozzles at different feed rates (amounts) with separate feed rollers or the like. By using the swirling force by the air flow to be described later, the yarn on the side supplied excessively is blown to form a loop.

In the case of utilizing the two feeds, it is not possible to form a loop in the nozzle by using an interlaced nozzle or a turbulent nozzle which gives disturbance, carding, and entanglement to the running yarn in the nozzle. However, in the processed yarns obtained from these processing nozzles, in addition to being easy to form loops in a short cycle, the size of the loops is liable to be reduced.

For this reason, in order to manufacture the embossed yarn satisfying the object of the present invention, it is necessary to closely control many existing parameters. In addition, in the case of multiple additions, there is a possibility that the bulkiness of the vulcanizer may be different from one to another. Therefore, from the viewpoint of quality stability, it is preferable to adopt a method utilizing air flow control other than the nozzle described later. With respect to this point, it was considered that disturbance in the nozzles and carding process were not positively given.

Next, the yarn to which the compressed air is imparted is turned to the outside of the nozzle to form a loop by superimposition. This is conceived as a concept that a loop can be formed by turning two yarns supplied from a position away from the nozzle. A specific phenomenon was found that when the comparison between the airflow velocity and the yarn velocity (airflow velocity / yarn velocity) was in the range of 100 to 3000, swirling of the airflow outside the nozzle occurred.

Here, the airflow velocity means the velocity of the airflow emitted from the suction nozzle outlet at the same time as the running yarn. This speed can be controlled by the discharge diameter of the nozzle and the flow rate of the compressed air. In addition, the threading speed can be controlled by the peripheral speed of the roller which pulls the thread after the fluid processing nozzle. Since the turning force of this traveling yarn increases or decreases depending on the speed ratio of the air stream and yarn, it is preferable to make the speed ratio close to 3000 when the intended null point of the bulk key is intensified, In the case of the above, it is preferable to approach 100. It is also possible to change the speed ratio, for example, by varying the flow rate of the compressed air intermittently or by varying the speed of the take-up roller. On the other hand, when the battery of the present invention is used for applications in which the compression recovery such as packing is repeatedly applied, it is preferable that the airflow rate / yarn speed is 200 to 2000. Particularly in the case of producing a vulcanization yarn for use as a material for clothing such as a jacket, which is deformed at high frequency, it is particularly preferable that the airflow rate / yarn speed is set to 400 to 1500 from the viewpoint of imparting appropriate restraint and flexibility Do.

The occurrence of this turning force has caused the accompanying air current to depart from the driving train. Thus, the turning point 10 for changing the apostles is arranged. Specifically, the apostrophe may be changed by a bar guide or the like. Then, the loop is formed by turning the periphery of the examination by taking the yarn at a specified speed. It is preferable that the turning point of the running yarn is located at a position away from the nozzle discharge outlet from the viewpoint of obtaining a space for causing the turning and a loosening by swinging of the swinging yarn using the diffusion of the airflow jetted from the nozzle. However, to manufacture the bee Fuki of the present invention suitable nozzle - will be changed by the distance between the ejected gas flow rate between the turning point, the turning between squirting a stream travels 1.0 × 10 ^-5 to 1.0 × 10 ^-3 chogan point (10) is preferably present. It is preferable that the distance between the nozzle and the pivot point be between the runs of the ejection air flow of 2.0 × 10 ^-5 to 5.0 × 10 ^-4 seconds in order to form a dead point of examination and superpower in a cycle suitable for balance with the diffusion of airflow Do.

By adjusting the position of this turning point, it is also possible to control the cycle of the null point of the present invention. The dead point has a role of maintaining the self-sustaining loop of the snake yarn, which is a feature of the present invention, and preferably exists at a certain period. From this point of view, it is preferable to adjust the turning point such that the examination in the binocular and the knocking point of the superpower is in a range of 1 / mm to 30 / mm. If it is within the relevant range, even after the three-dimensional crimp of the superabrasive is expressed, it is preferable that the loop is present at an appropriate interval. From this point of view, it is more preferable to adjust the turning point such that the above-mentioned intersection point exists at 5 / mm to 15 / mm.

It is preferable that the processed yarn 11 (Fig. 4) in which the loops made of superhull yarns are formed is subjected to heat treatment after winding once or after bulky processing in order to fix the shape and to express the three-dimensional crimp. Fig. 4 illustrates a processing step in which a heat treatment is carried out subsequently to the loop forming step.

This heat treatment is performed, for example, by the heater 13 (Fig. 4). The temperature is based on the crystallization temperature ± 30 ° C of the polymer used. In the case of the treatment in this temperature range, since the treatment temperature deviates from the melting point of the polymer, there is no cured portion in the interlabial or interlabial examination, there is no foreign body feeling, and there is no case of impairing good tactile sensation. The heater used in this heat treatment step can employ a general contact type or non-contact type heater, but it is preferable to use a non-contact type heater from the viewpoint of suppressing deterioration of the puncture or the snare before the heat treatment. The non-contact heaters referred to herein include air-heated heaters such as slit-type heaters and tubular heaters, steam heaters that are heated by high-temperature steam, halogen heaters and carbon heaters using radiant heat, and microwave heaters.

Here, from the viewpoint of heating efficiency, a heater using radiant heating is preferable. As for the heating time, for example, the time for fixing the fiber structure of the fibers constituting the processed yarn to be crystallized, fixing the shape of the processed yarn and completing the crimp development of the warp yarn is taken into consideration, It is recommended to adjust according to the required characteristics. The processed yarn after completion of the heat treatment process may be wound with a winder 15 having a tension control function by regulating the speed through the roller 14 (Fig. 4). The shape of the reel is not particularly limited, and so-called cheese winding or bobbin winding can be used. It is also possible to prepare a plurality of pieces in advance and to make a tow or a sheet as it is, considering the final product.

It is preferable that the silk-based emulsion is uniformly adhered before and after the heat treatment process of the present invention. The silicone to be adhered here may suitably be formed by crosslinking silicon by heat treatment or the like so as to form a silicone film on the napping and screening. Examples of the silicone emulsions used herein include dimethylpolysiloxane, hydrodienemethylpolysiloxane, aminopolysiloxane, and epoxy polysiloxane, which may be used alone or in combination. In order to uniformly form a film on the surface of the vulcanizer, a dispersant, a viscosity adjuster, a crosslinking accelerator, an antioxidant, a flameproof agent and an antistatic agent may be contained in the emulsion within a range that does not impair the purpose of silicon adhesion. The silicone emulsion can be used in the form of a solvent, a solution or an aqueous emulsion. From the viewpoint of uniform attachment of the emulsion, it is preferable to use an aqueous emulsion. It is preferable that the silicone type emulsion is treated so that the emulsion can be applied in an amount of 0.1 to 5.0% with respect to the bulk silica using a spraying method using an oil guide, an oiling roller or a spray. Thereafter, it is preferable to carry out crosslinking reaction by drying at an optional temperature and time. The silicone-based tanning agent can be applied to a plurality of times dividedly, and it is also preferable to laminate silicon of the same kind or silicon of different kinds to laminate a strong silicon film. By forming the silicone film on the nickel oxide by the above-mentioned process, the slipperiness and the touch of the nickel oxide are increased, and the effect of the present invention can be further enhanced.

Example

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, examples of the present invention will be described in detail.

In the Examples and Comparative Examples, the following evaluations were carried out.

A. island

The mass of 100 m of the fiber was measured, and the fiber size was calculated by multiplying it by 100 times. This value was repeated 10 times, and a value obtained by rounding off the second decimal place of the simple average value was defined as a fineness (dtex) of the fiber. It is calculated by dividing the filament number of the fibers of the monofilament island filament. In this case, the value obtained by rounding off the second decimal place was regarded as a single yarn fineness.

B. Mechanical properties of fibers

The tensile strain curves of the fibers were determined by using a tensile tester "Tensilon" UCT-100 manufactured by Orientec Corporation under the conditions of a sample length of 20 cm and a tensile speed of 100% / min. The strain at break is read and the breaking strength (cN / dtex) is calculated by dividing the load by the initial fineness. Further, the strain at break was read, and the value obtained by dividing the value by the sample length was multiplied by 100, and the elongation at break (%) was calculated. All values are the simple average value of the result obtained by repeating this operation five times for each level and rounding off the second decimal place.

C. Loop evaluation (size, deadlock, breaking point)

The yarn as a sample is multiplied by a load of 0.01 cN / dtex so as not to cause sagging, and the yarn is wound on a pair of the apodization guides 4 with a predetermined length as illustrated in Fig. Sulger photographed the sides of the binocular with a microscope VHX-2000 manufactured by Keyence Corporation at a magnification that allows observation of more than 10 loops. The distance (5) (Fig. 2) from the processing center line 3 of the loop front end to the loop top point was measured for 10 loops randomly selected from this image using image processing software (WINROOF). In this work, a total of 10 images are photographed for one processor, and a total of 100 loops per processor are measured in millimeters to the second decimal place. The average value of these values was calculated, and a value obtained by rounding off the second decimal place or less was defined as the size of the loop in the sky key.

In the above-mentioned 10 images, a point at which the superhighness that forms the apex of the loop at 1.0 mm or more from the processed yarn centerline 3 intersects with a straight line located at 0.6 mm from the processed yarn centerline 3 is set as an intersection point, The party was counted. A total of 10 images were measured for the number of crossing points (pieces / mm), and rounded off to the decimal point of the average value.

In the above 10 images, the loop was counted for ten break points per millimeter of the processed yarn. The breaking point (dogs / mm) of a total of 100 loops per one bag was measured and rounded to the nearest two decimal places of the average value. Here, a sample having a breaking point of less than 0.2 pcs / mm is not substantially broken (it is described in each of Examples and Comparative Examples, and in Table 1, Table 2 and Table 3, " The above was evaluated by breaking (description of each example and comparative example, and "said" in each table).

D. Cylindrical shape evaluation (presence of three-dimensional crimp, radius of curvature)

At 10 randomly selected fabrics, we observed them with a microscope VHX-2000 manufactured by Keyence Corporation at a magnification that confirmed the crimp shape of the single yarn. In the 10 images, there are a three-dimensional crimp structure in which 10 judges and 10 crimpers are observed and turned into a spiral shape (spiral structure) (description of each embodiment, comparison example, and table 1, table 2 " and " Table 3 " in Table 3), and otherwise, no crimp structure was set (description of each example and comparative example, and "no" in each table). Further, from the same image, the radius of the curvature 6 (Fig. 3) of the crimped single yarn was measured using image processing software (WINROOF). As described above, the randomly selected 100 judges and 100 firsts are measured in millimeters up to the second decimal place, and the value obtained by rounding off the second decimal place of the simple average is defined as the radius of curvature of the three-dimensional crimp structure.

E. Friction coefficient between fibers

Was measured by a radial type friction coefficient tester in accordance with JIS L 1015 (2010). On the other hand, the pretreatment such as carding is not performed, and the evaluation is performed by enumerating the sample parallel to the cylinder.

F. Frost-resistance (inhibitory effect of fastener phenomenon)

The drums wound with a processed yarn of 500 m or more were put on a krill and released for 5 minutes at a speed of 30 m / min in the direction of the cross section of the drum, and yarn riding and curling due to the fastener phenomenon were confirmed by visual observation. Respectively.

A: There is no jump in yarn, and it is possible to wind unfavorably.

B: You can wind up a little without the trouble of seeing the yarn jump.

C: The yarn rises and a little curl can be seen, but it can be unrolled.

D: The yarn rises and curls up and can not wind up.

G. Touch

A drum wound with a processed yarn of 500 m or more was placed on a krill, and the yarn was unwound in a direction of the cross section of the drum using a calibrator to form a wound yarn. A sample for tactile evaluation was prepared by fixing one spot of the thread thread. When this sample was caught, the touch of the case was evaluated by the following four steps.

A: Superior tactile feeling with excellent bulkiness and flexibility, no sense of foreign body.

B: Good touch with bulkiness and flexibility.

C: Having a bulkiness and a good feeling of not feeling a foreign object.

D: Bad touch feeling of foreign body without bulkiness.

H. Intrinsic Viscosity of Polymers (IV)

0.8 g of the polymer to be evaluated was dissolved in 10 ml of o-chlorophenol having a purity of 98% or more at a temperature of 25 占 폚, and intrinsic viscosity (IV) was determined at 25 占 폚 using an Ostwald viscometer.

Example 1

The polyethylene terephthalate (PET: IV = 0.65 dl / g) was melted at 290 ° C, weighed and introduced into a spinning pack. Three slits 17 (0.1 mm wide) shown in Fig. 6 were hollow And discharged from the discharge port for the cross section. A cooling air of 20 캜 was flowed at a rate of 100 m / min to the discharged yarn, and the web was blown from one side and cooled and fixed. Nonionic spinning emulsions were added to the yarn, and undrawn yarn was wound at a spinning speed of 1500 m / min. Subsequently, the unwounded unwound yarn was stretched 3.0 times at a stretching speed of 800 m / min between rollers heated at 90 DEG C and 140 DEG C to obtain a drawn yarn having a fineness of 78 dtex, a filament count of 12, and a hollow ratio of 30%.

As shown in Fig. 4, the obtained hollow cross-sectional yarn was fed to the two supply rollers, one by one, with a hollow cross-sectional yarn, and sucked into the suction nozzle with one feed roller at a speed of 50 m / min and the other at a speed of 1000 m / min . In the suction nozzles, compressed air was injected at 20 ° to the air flow at a flow rate of 400 m / s to the running yarn, and the yarns were jetted from the nozzles together with the accompanying air flow so that the examination and the superposition were not interrupted. The yarns sprayed from the nozzles were run for 1.0 × 10 ^-4 seconds together with the air flow. The yarns were changed using a ceramic guide, and the drawn yarn was drawn with a draw roller at a speed of 50 m / min.

Subsequently, the processed yarn was led to a tube heater through a roller, and heat treatment was performed in heated air at 150 ° C for 10 seconds to set the shape of the vulcanization yarn, and three-dimensionally crimped yarn was expressed in the superabsorbent yarn. The bulky yarn was wound on a drum at 52 m / min by a tension control winding machine provided after the tube heater.

In the first embodiment, the loops constituted by protrusions projected at an average length of 23.0 mm from the center line of the processed yarn, and the loops were formed at a frequency of 13 yarns / mm. This protruding loop was excellent in size and cycle uniformity.

The sniper formed the loop and was fixed by the deadlock in the examination. The examination and necrosis had a three-dimensional crimp structure of a millimeter order with a radius of curvature of 5.0 mm. No breaks were observed in the snowshoe, and the loops were continuously formed. (Breaking point: 0.0)

In the above-mentioned embossed yarn, the warp yarns forming the continuous loops have a three-dimensional crimp structure, the interlaminar coefficient of friction is 0.3, the unwinding property of the yarn is not problematic, the yarn is wound smoothly from the drum It was able to wind (unfolding property: B). Further, it had a good touch feeling with a bulkiness derived from the specific structure of the present invention (touch: B). The results are shown in Table 1.

Example 2

The silicone emulsion containing the polysiloxane in a concentration of 8% by mass was uniformly sprayed on the bulk silica sampled in Example 1 by spraying so that the final polysiloxane adhered amount became 1% by mass with respect to the bulk silica, and the emulsion was dispersed at 165 캜 for 20 minutes Heat treatment was performed to collect the barkies.

In Example 2, by forming a film of silicon, the feel was smooth compared to that of Example 1, and it had a smooth smoothness together with the puncture of the vulcanis. The fiber interfacial coefficient of friction of this vulcanization yarn was 0.1, which was lower than that of Example 1. The influence of the silicon treatment on the morphology of the vulcanization yarn was investigated, and it was found that the morphology characteristics of Example 1 were substantially coincident with those of Example 1, and other functions were maintained. It was also excellent in the unfolding property and touch feeling.

In addition to the unwinding property, ten yarns were cut into a length of 50 cm to form a bundle, and kneading and rubbing were added by holding both ends of the yarn. However, in order to easily draw one yarn from the yarn bundle without entanglement, . The results are shown in Table 1.

Comparative Examples 1 and 2

In order to verify the effect of the bulky processing of the present invention, the same procedure as in Example 1 was carried out except that nozzles in which the injection angle of the compressed air was changed to 90 degrees were used and no turning point by a ceramic guide was provided. However, in Comparative Example 1, at the same compressed air flow rate as in Example 1, entanglement between screening and superimposition was excessive, and stable working was difficult due to clogging of the nozzle. Therefore, the airflow rate was reduced to 200 m / s As a result of the lowering of the temperature, the running of the yarn became possible, so that the obtained processed yarn was sampled to evaluate the characteristics (Comparative Example 1).

The processed yarn of Comparative Example 1 had a loop size smaller than that of Example 1 at the time before heat treatment and was formed at a very short cycle as compared with Example 1. Therefore, when the yarn was crimped by heat treatment, Nice was lacking. If we check the details of the loops consisting of superheroes, we can see that the loop size is irregular, and the breakpoints that were not recognized by the processor extracted before annealing are relatively large (broken "Yes": breaking point 0.5).

Using the processed yarn obtained in Comparative Example 1, a pair of rubber discs were used for roughing processing (Comparative Example 2). Although the bulkiness appeared to be improved, the breakage of the loops was much larger than that of Comparative Example 1, so that entanglement between the snakes was promoted and a sense of foreign body was felt when compressed. In comparison with the comparative example 1, when the unwinding was performed, the yarn was curled too much and the unwinding property was also lowered. The results are shown in Table 2.

Comparative Example 3

Using the processed yarn of Comparative Example 1, a silicon yarn was processed in the same manner as in Example 2 to obtain a processed yarn.

Compared with Comparative Example 1, unwindability tends to improve owing to slipping due to silicon. However, since the shape of the obtained processed yarn does not change greatly and loops having a small size are formed in a short period of time, It was scarce and tender. The results are shown in Table 2.

Comparative Example 4

In order to verify the effect of the bulky processing of the present invention, a nozzle in which the injection angle of the compressed air was changed to 60 degrees was used, and a ceramic guide was disposed so as to discharge the yarn immediately after the discharge hole of the nozzle. 3.

In Comparative Example 4, a loop having a small size and a loop having a relatively large size were intermingled before heat treatment. By conducting the heat treatment, the examination and the nippers contracted and a three-dimensional crimp structure was developed. Compared with Example 1, however, the overall bulkiness was significantly lowered. Further, unevenness of the loop before the heat treatment was promoted, and a portion where the loop was partially loosened was seen. Further, since the injection angle of the compressed air was large, the yarn was disturbed and opened in the nozzle, and the single yarn was deteriorated by the high frequency in the inner wall of the nozzle. Therefore, after the heat treatment, the break point of the loop was partially visible, although there was a slight improvement tendency as compared with Comparative Example 3. [ The results are shown in Table 2.

Examples 3 and 4

The feeding speed was the same as in Example 2 except that the feeding speed was changed from 50 m / min in the example 3 to 500 m / min in the sieve, 20 m / min in the examination and 1000 m / min in the example 4.

In Example 3, the size of the loop was slightly reduced to 12 mm as compared with Example 2, but the unwinding property was excellent and the feel was good.

In the fourth embodiment, the size of the loop is increased to 59 mm as compared with the second embodiment, but the slack of the loop hardly occurs. As for tactile feeling, it has an excellent bulky varnish having flexibility. However, since it has a structure in which cutting or sagging of superabsorbent yarns is suppressed, the material has good unwinding property. The results are shown in Table 3.

Example 5

The yarn spun yarn used was changed to 6 holes to give a hollow yarn ratio of 20%, and a drawn yarn having a single yarn fineness and a hollow yarn ratio was taken (fineness 78 dtex, number of filaments 6 (single yarn fineness 13 dtex), hollow ratio 20%). The same operation as in Example 1 was carried out except that the drawn yarn was used as a warp yarn.

In Example 5, the stiffness of the loop was improved and the repulsive feeling was improved by making the warp feel thick. The flexibility was lowered in comparison with Example 1, but the film had sufficient bulkiness. In practical use, the tactile sensation as a product could be adjusted by adjusting the number so as to be satisfactory. The results are shown in Table 3.

Example 6

Four hollow slits having a width of 0.1 mm were arranged in concentric circles, and the discharge ports for the hollow section were changed to a spinneret having 24 holes perforated, and the drawn yarn was changed in the monofilament fineness and hollow ratio (fineness 78 dtex, filament number 24 (single yarn fineness of 3.3 dtex) and hollow ratio of 40%). The same operation as in Example 1 was carried out except that the drawn yarn was used as a warp yarn.

In the sixth embodiment, the loops formed by the snags due to the engagement with the judges were self-sustained, and since the snags were thinner than those in the first embodiment, they became highly flexible. (1.5 mm) in the number of the filaments of the filament yarn and the crimp radius of the filament crimping yarn is reduced, and a slight yarn jump is seen at the time of unwinding from the drum. However, this can be solved by adjusting the winding tension on the drum, It was a problem-free level. The results are shown in Table 3.

Example 7

The round hole used to make the general round cross-section fiber was changed to a spinneret in which 12 holes were drilled, and in the same manner as in Example 1, the yarn was excessively cooled on one side with a cooling wind at 20 캜 and spun. . The shape of crimp after heat treatment of the drawn drawn yarn was gentle compared with that of Example 1, and the curvature radius of crimp was 28 mm. The procedure of Example 2 was repeated except that the drawn yarn was used as a warp yarn.

In Example 7, since the crimp shape of the superabrasive was gentle, the loop of the superabrasive became a tassel-like shape and exhibited excellent tactile feeling with appropriate repellency. The results are shown in Table 4.

Example 8

All of the round cross-section fibers used in Example 7 were added according to Example 7 except that they were used for examination.

Also in Example 8, the loops formed by the superimposition of warp yarns were formed in a gentle crimping manner to form a tassel-like structure. Further, the shape of the inspection crimp becomes gentle, so that the constraint at the point of intersection between the examination and the superpower is weakened, and even when the crimp yarn is loaded in the fiber axis direction, the superficial movement can be transversely moved. At the time of unwinding, there was a case in which the yarn was caught by this lateral movement even though it was low in frequency as compared with Example 7. However, this was a level at which there was no particular problem in practical use. The results are shown in Table 4.

Comparative Example 5

In order to verify the effect of the three-dimensional crimp shape of the inspection and the superimposition, the inspection and the superimposition were changed under the condition of the embodiment 2 to perform the actual machining.

First, in the examination, a spinneret for general round cross-section fiber used in Example 7 was used. In spinning, the slit having a width of 0.1 mm used in Example 1 was placed in a concentric circle shape, And the cooling wind speed was changed to 20 m / min. Other conditions were the same as in Example 1, and the drawn yarn was sampled. The drawn yarn for examination and second use had a fineness of 78 dtex and a number of filaments of 12, both of which did not exhibit the three-dimensional crimp shape mentioned in the present invention even after the heat treatment. Processed yarn was sampled according to Example 1 except that these drawn yarns were used.

In Comparative Example 5, loops could be formed by forming pivot points other than the nozzles, but the crimp of the superabrasive was not expressed even after the heat treatment and the straight state was maintained. In addition, since there is no crimp due to superimposition, unevenness in the loop size was seen as compared with Comparative Example 1, and the loop was partially looped.

In Comparative Example 5, there was also a loop formed even though the spinning did not exhibit three-dimensional crimping. In comparison with Example 1, there was a tendency that entanglement occurred easily between the spinelers, and many untwisted yarns were seen at the time of unwinding. Further, the processed yarn released from the drum was subjected to compressive deformation, whereby the loops were fixed while being sandwiched by the sediments and transversely, and the bulkiness was lowered. The results are shown in Table 4.

Comparative Example 6

Low Tg PET with IV = 0.51 dl / g and polytrimethylene terephthalate (3GT) with IV = 1.20 dl / g were prepared and melted at 280 ° C and weighed to have a low viscosity PET / 3GT = 50 / The composite type composite nipple flows into the assembled radiation pack, and the composite polymer is discharged. Thereafter, a cooling wind at 20 占 폚 was blown at 20 m / min to the yarn, cooled and fixed, emulsified, and then unwound at a spinning speed of 1500 m / min. Then, the rolled undrawn yarn was stretched 3.0 times at a stretching speed of 800 m / min between rollers heated at 90 占 폚 and 130 占 폚 to obtain a drawn yarn of 78 dtex, a filament count of 12, and side-by-side composite fibers. The drawn yarn was taken out from the drawn yarn according to Comparative Example 1, except that the round cross-section fiber used in Comparative Example 5 was used as a judging yarn.

In the sample of the comparative example 6, after the heat treatment, the superabsorbent exhibited a three-dimensional crimp shape, but the curvature radius was very fine of several tens of micrometers, and the fracture of the superabsorbent material was observed in various places (with fracture: 0.4 pieces / . Further, by expressing the crimped shape, the loop of the sniper yarn was greatly reduced as compared with that before the heat treatment, and fewer than 0.6 mm at the center line of the processed yarn. For this reason, the tactile feel of the processed yarn is unique similar to rubber, but it is not flexible with the puncture for the purpose of the present invention. In addition, since the fine crimp of the micron order and the breaking of the swage yarn are uneven in the protrusion of the loop, the coefficient of static friction between the fibers is relatively high (0.4), and it is difficult to say that the drum has good unwinding property. The results are shown in Table 4.

1 Chronology 2 Judgment
3 thread center line 4 thread guide
5 Distance from the center line of the workpiece to the apex of the loop 6 Three-dimensional crimp
7 Feed roller 8 Synthetic fiber
9 Suction nozzle 10 turning point
11 Foil 12 Filler Roller
13 Heater 14 Delivery roller
15 Winder 16 Spray angle
17 Slit-shaped discharge hole

Claims (7)

A superabsorbent having a three-dimensional crimp structure, and
And a judging process of fixing the sniper by the hanging with the sniper,
Wherein the yarn is substantially not broken but forms a loop continuously. The method according to claim 1,
(Per cent / core) of judging and superannuation is in the range of 0.5 to 2.0,
The number of the seams of the judging yarn and the war yarn is 1 / mm to 30 yarns / mm in the fiber axis direction of the yarn,
Wherein the crimp structure of the superabsorbent yarn has a radius of curvature of 2 to 30 mm. 3. The method according to claim 1 or 2,
The monofilament fineness of the fibers constituting the vulcanization yarn is 3.0 dtex or more,
Barkies with a fiber-to-fiber static friction coefficient of 0.3 or less. 4. The method according to any one of claims 1 to 3,
The examination is punctual with a three - dimensional crimp. 5. The method according to any one of claims 1 to 4,
The hollow fiber is a hollow fiber with a hollow ratio of 20% or more. 6. The method according to any one of claims 1 to 5,
It is a single component fiber of the same kind as the examination. A fiber product comprising at least a part of the yarn according to any one of claims 1 to 6.

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