JP2016216869A - Special false-twisted yarn and method for manufacturing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a special false-twisted yarn which can exhibit natural uneven feeling and can be dyed in a wavering color tone; and to provide a method for manufacturing the same.SOLUTION: There is provided a special false-twisted yarn 1 which is manufactured in such a manner that a drawing rate and a heater temperature when a first yarn 1A is false-twisted and a drawing rate and a heater temperature when a second yarn 1B is false-twisted are set to different values from each other, and there is provided a manufacturing method for the same.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a false twisted yarn and a method for producing the false twisted yarn, and more particularly to a special false twisted yarn that can be dyed in a hue excellent in design and a method for producing the same.

  2. Description of the Related Art Conventionally, false twisted yarn has been used in order to obtain a bulky, soft and excellent texture of natural fibers using artificial fibers such as polyester fibers. For example, a polyester false twisted yarn obtained by false twisting polyester long fibers is bulky and excellent in crimpability, and a product similar to a knitted fabric using natural fibers can be produced. Polyester filaments are produced as multifilament yarns of a predetermined thickness by melting a fiber raw material and bundling a plurality of filaments drawn from minute spinning holes.

  The false twisted yarn can be obtained through false twisting in which the multifilament yarn is stretched and twisted, heat is applied to temporarily fix the twist, and then untwist. Moreover, S twist false twisted yarn and Z twist false twist yarn can be manufactured by the direction to twist.

  That is, since the direction of residual torque (S direction and Z direction) remaining in the yarn differs depending on the false twisting direction during false twisting, there are S twist false twisted yarn and Z twist false twisted yarn. Therefore, for the purpose of canceling the residual torque, a non-torque false twisted yarn obtained by combining S twist false twisted yarn and Z twist false twisted yarn has already been proposed (see, for example, Patent Document 1).

  In addition to producing S-twisted yarn and Z false-twisted yarn to produce a yarn without torque, a plurality of multifilament yarns having different characteristics are combined to produce a composite false-twisted yarn. To be done.

  False twisted yarn is false twisted, heat-set, and untwisted while drawing a multifilament yarn, and gives the yarn a crimp and appearance of a color and texture similar to natural fibers. Can do. Further, in order to obtain a fiber product or fabric product of a predetermined color, a dyeing process such as yarn dyeing in which the yarn is dyed in a yarn state, or fabric dyeing in which the fabric is dyed after knitting is performed.

  Moreover, in order to obtain a composite processed yarn having a natural unevenness, a non-uniform composite processed yarn that combines different two-component multifilament yarns with a predetermined yarn length difference and develops unevenness in the longitudinal direction is obtained. It has already been proposed (see, for example, Patent Document 2).

  If the composite processed yarn has non-uniform unevenness in the longitudinal direction, non-uniform dyeing unevenness can be expressed in the longitudinal direction, and a fabric having a natural uneven feeling can be manufactured.

  JP 2003-166136 A   Japanese Patent Laid-Open No. 7-189065

  However, in order to develop unevenness in the longitudinal direction, it is not preferable to prepare a plurality of multifilament yarns having different components. In addition, it is not preferable to use a plurality of yarns having different components in order to obtain a fabric having a predetermined texture or color.

  That is, non-uniform dyeing unevenness can be expressed in the longitudinal direction using a single multifilament yarn made of the same fiber material, and a natural unevenness can be felt even if a false twisted yarn made of a single multifilament yarn is used. It is preferable to be able to produce a fabric that can be dyed with a fabric having a hue or a flickering hue.

  Moreover, it is preferable that such special false twisted yarn can be easily manufactured, and it is more preferable that the above-described special false twisted yarn can be manufactured by the same false twisting process using the same false twisting machine.

  In view of the above problems, an object of the present invention is to provide a special false twisted yarn that can express a natural unevenness and can be dyed in a flickering tone, and a method for producing the same.

  In order to solve the above-mentioned problems, the present invention provides a special false twisted yarn produced by false twisting and combining a first yarn and a second yarn made of multifilament yarn and winding them around a package. It is manufactured by setting the stretching ratio and heater temperature when false twisting the first yarn and the stretching ratio and heater temperature when false twisting the second yarn to different values. It is characterized by that.

  According to this configuration, since the drawing rate and the heater temperature of the first yarn and the second yarn are different from each other, there is a difference in the degree of stretch and the degree of crimp of the yarn, and the longitudinal direction is not satisfactory. Uniform unevenness can be expressed. Therefore, it is possible to obtain a special false twisted yarn that can exhibit non-uniform unevenness even when dyed in the same color, and can exhibit natural unevenness and can be dyed in a wavy tone.

  In the special false twisted yarn having the above-described configuration, the present invention provides the amount of twist when the first yarn and the second yarn are false twisted, and the first and second yarns are twisted. It is characterized by being different. According to this configuration, since the amount of twisting and untwisting during the false twisting process is different, a difference occurs in the degree of stretch and crimp of the yarn, resulting in greater unevenness in the longitudinal direction. It can be expressed. Therefore, it is possible to obtain a special false twisted yarn capable of expressing non-uniform unevenness even when dyed in the same color and exhibiting a flickering hue.

  In the special false twisted yarn having the above-described configuration, the present invention is characterized in that the first yarn is S twist false twist and the second yarn is Z twist false twist yarn. According to this configuration, by combining the S-twisted false twisted yarn and the Z-twisted false twisted yarn, it is possible to obtain a special false twisted yarn excellent in swelled texture by suppressing the residual torque.

  In the special false twisted yarn having the above-described configuration, the present invention provides an entanglement process in which, when the first yarn and the second yarn are combined, the compressed portion is blown with compressed air to interlace the filaments. It is characterized by giving. According to this configuration, the S twist false twisted yarn and the Z twist false twisted yarn can be satisfactorily entangled into a single yarn that is not separated. Further, since the yarns having different hues and textures are combined so as not to be separated from each other, it is possible to exhibit a color tone with a sense of fluctuation.

  According to the present invention, in the special false twisted yarn having the above-described configuration, both the first yarn and the second yarn are made of a polyester multifilament yarn. According to this configuration, special false twisted yarns using polyester, which is a variety of clothing materials, can be used to create special false twisted yarns that can produce natural unevenness and can be dyed in a flickering shade. Can be obtained.

  Moreover, this invention is a manufacturing method of the special false twisted yarn of the said structure, Comprising: The false twist process which false twists the 1st yarn which consists of multifilament yarn, and a 2nd yarn, 1st A yarn forming step of combining the yarn and the second yarn, and a winding step of winding the combined yarn around a package, and a drawing rate of the first yarn in the false twisting step; It is characterized in that the heater temperature, the drawing rate of the second yarn, and the heater temperature are set to different values.

  According to this configuration, since the drawing rate and the heater temperature of the first yarn and the second yarn are different from each other, there is a difference in the degree of stretch and the degree of crimp of the yarn, and the longitudinal direction is not satisfactory. Uniform unevenness can be expressed. Therefore, it is possible to obtain a method for producing a special false twisted yarn that can exhibit non-uniform unevenness even when dyed in the same color, can exhibit a natural unevenness, and can be dyed in a wavy tone.

  Moreover, this invention is the manufacturing method of the special false twisted yarn of the said structure. WHEREIN: The twist amount at the time of false twisting the 1st yarn and the 2nd yarn is set to the 1st yarn and the 2nd yarn. It is characterized by being different from the yarn of According to this configuration, since the amount of twisting and untwisting during the false twisting process is different, a difference occurs in the degree of stretch and crimp of the yarn, resulting in greater unevenness in the longitudinal direction. It can be expressed. Therefore, it is possible to produce a special false twisted yarn that can exhibit non-uniform unevenness even when dyed in the same color and can exhibit a fuzzy tone.

  In the method for producing a special false twisted yarn having the above configuration, the first yarn false twisting step is an S twist false twisting step, and the second yarn false twisting step is a Z twist false twisting step. It is a twisting process, The said yarn process is an SZ yarn process, Comprising: These processes are performed in series using one extending | stretching false twister, It is characterized by the above-mentioned. According to this configuration, the production process of producing a special false twisted yarn that can produce a natural uneven feeling by producing and combining S twist false twisted yarn and Z twist false twisted yarn is a single drawn temporary twist. Since it can be carried out via a twisting machine, the manufacturing process of the special false twisted yarn is simplified. That is, it is possible to easily produce a special false twisted yarn that can express a natural unevenness and can be dyed in a flickering hue.

  Further, the present invention is characterized in that, in the method for producing a special false twisted yarn having the above-described configuration, an entanglement process is performed in which compressed air is blown onto the combined yarn portion to entangle the filaments in the SZ combining step. According to this configuration, the S twist false twisted yarn and the Z twist false twisted yarn can be satisfactorily entangled into a single yarn that is not separated. Moreover, since the yarns having different colors and textures are combined so as not to be separated from each other, a special false twisted yarn having a color tone with a sense of fluctuation can be easily produced.

  According to the present invention, the first yarn and the second yarn are subjected to false twisting with different drawing rates and heater temperatures, and the yarns after false twisting are combined. Therefore, a difference is produced in the degree of expansion and contraction between the first and second yarns, and unevenness in the longitudinal direction can be expressed. Therefore, it is possible to obtain a special false twisted yarn and a method for producing the same, which can exhibit non-uniform unevenness even when dyed in the same color, and can exhibit natural unevenness and can be dyed in a flickering hue.

It is a schematic explanatory drawing which shows the manufacturing process of the special false twisted yarn which concerns on this invention.

  Embodiments of the present invention will be described below with reference to the drawings, but the present invention is not limited thereto. Moreover, the same code | symbol is used about the same structural member, and the overlapping description is abbreviate | omitted suitably. First, the special false twisted yarn 1 according to the present embodiment will be described with reference to FIG.

  The special false twisted yarn 1 according to the present invention is manufactured by combining the first yarn 1A and the second yarn 1B. The first yarn 1A and the second yarn 1B are false twisted together and then combined into a single yarn. For example, it comprises a polyester false twisted yarn obtained by drawing false twisted unstretched yarn made of polyester multifilament.

  One of the first yarn 1A and the second yarn 1B is an S twist false twisted yarn, and the other is a Z twist false twist yarn. For example, the first yarn 1A is an S twist false twisted yarn, and the second yarn 1B is a Z twist false twisted yarn.

  In addition, the special false twisted yarn 1 according to the present embodiment is manufactured by false twisting and combining the first yarn 1A and the second yarn 1B made of multifilament yarn, and winding them in a package. Special false twisted yarns, each having a drawing rate and heater temperature when false twisting the first yarn 1A, and a drawing rate and heater temperature when false twisting the second yarn 1B, respectively. It is characterized by being manufactured with different values.

  With this configuration, the first yarn 1A and the second yarn 1B have different drawing ratios and heater temperatures, so that there is a difference in the degree of stretch and crimp of the yarn, resulting in a longer length. Uneven unevenness can be expressed in the direction. Therefore, it is preferable that the special false twisted yarn 1 can be obtained, in which non-uniform unevenness can be expressed even when dyed in the same color, natural unevenness can be expressed, and the color can be dyed in a wavy tone.

  In addition to the draw ratio and the heater temperature, the amount of twisting when false twisting the first yarn and the second yarn is made different between the first yarn and the second yarn. Further preferred. For example, the twisting amount of the first yarn and the second yarn can be controlled by changing the number of rotations of the false twisting disk or changing the running speed of the false twisting belt. In this configuration, by further varying the amount of twisting and untwisting during the false twisting process, a slight difference can be produced in the degree of stretch and crimp of the yarn, which is not possible in the longitudinal direction. Uniform unevenness can be expressed more greatly. Therefore, it is possible to obtain a special false twisted yarn capable of expressing non-uniform unevenness even when dyed in the same color and exhibiting a flickering hue.

  Further, for example, the first yarn 1A is S-twisted false twisted, and the second yarn 1B is Z-twisted false twisted yarn. With this configuration, by combining the S-twisted false twisted yarn and the Z-twisted false twisted yarn, it is possible to obtain the special false twisted yarn 1 with excellent residual swell and excellent swelled texture. it can.

  When the first yarn 1A and the second yarn 1B are combined, it is preferable to perform an entanglement process in which compressed air is blown onto the combined yarn portion to interlace the filaments. With this configuration, the S twist false twisted yarn and the Z twist false twisted yarn can be satisfactorily entangled into a single yarn that is not separated into yarns, and yarns with different colors and textures can be separated into yarns. Therefore, it is possible to provide a color tone with a sense of fluctuation.

  Next, a method for manufacturing the special false twisted yarn 1 according to this embodiment will be described.

  As shown in FIG. 1, the manufacturing method of the special false twisted yarn 1 according to the present embodiment includes a first yarn 1A drawn from the yarn supply package PA and a second yarn 1B drawn from the yarn supply package PB. Are wound together in a single package after each false twisting.

  For example, a first yarn 1A drawn out from the yarn supply package PA and a second yarn 1B drawn out from the yarn supply package PB are connected to a supply roller 2 (2A, 2B) and a false twist heater 3 (3A, 3B). ), False twisting process through the false twisting tool 4 (4A, 4B) and the take-up roller 5 (5A, 5B), and winding while combining the yarn through the spinning roller 6, the feeding roller 8 and the winding roller 9 The take-up package 10 is wound.

  That is, the manufacturing process up to the supply roller 2 (2A, 2B), false twisting heater 3 (3A, 3B), false twisting tool 4 (4A, 4B), take-off roller 5 (5A, 5B) is the false twisting process. The manufacturing process from the take-up roller 5 (5A, 5B) to the combined yarn roller 6, the feed roller 8, and the take-up roller 9 is a combined yarn process and a winding process (combined yarn winding process).

  Here, in order to obtain the special false twisted yarn 1 which can express non-uniform unevenness even if it is dyed in the same color using the same yarn material and can express a natural uneven feeling, In the process, the drawing rate of the first yarn 1A, the heater temperature, the drawing rate of the second yarn 1B, and the heater temperature are set to different values to enable manufacture.

  The draw rate of the first yarn 1A is determined by the ratio of the feed speed of the supply roller 2A and the take-up speed of the take-up roller 5A, and the draw rate of the second yarn 1B is the feed speed of the feed roller 2B. And the take-up speed of the take-up roller 5B, the respective speeds can be set individually in this embodiment. The false twisting tool 4A is an S twist false twisting tool, and the false twisting tool 4B is a Z twist false twisting tool.

  Moreover, the set temperature of the false twist heater 3A and the false twist heater 3B can be set individually. Thereby, the draw ratio and heater temperature of the first yarn 1A and the draw ratio and heater temperature of the second yarn 1B in the false twisting process can be set to different values.

  With this configuration, the first yarn 1A and the second yarn 1B have different drawing rates and heater temperatures, so that the first yarn 1A and the second yarn 1B are different from each other. Even yarns of the same thickness made of the same yarn material can cause unevenness in the longitudinal direction due to differences in the degree of stretch and crimp of the yarn. Therefore, even if it dye | stains to the same color, a nonuniform unevenness can be expressed and the manufacturing method of the special false twisted yarn 1 which can express a natural uneven feeling can be obtained.

  In addition, by changing the twisting amount when false twisting is performed using the false twisting tools 4A and 4B between the first yarn 1A and the second yarn 1B, the degree of stretch and crimp of the yarn As described above, a slight difference can be caused every time and unevenness in the longitudinal direction can be expressed more greatly.

  The false twisting process of the first yarn 1A is an S twist false twisting process, the false twisting process of the second thread 1B is a Z twist false twisting process, and the combining process is an SZ combining process. These steps are performed in series using a single drawing false twisting machine. If it is this structure, the manufacturing process which manufactures the special false twisted yarn 1 which manufactures the S twist false twisted yarn and the Z twist false twisted yarn, combines them, and can express a natural uneven feeling is one unit. Since it becomes feasible via a drawing false twister, the manufacturing process of the special false twisted yarn 1 is simplified. That is, it is possible to easily manufacture the special false twisted yarn 1 that can express a natural feeling of unevenness even when the same yarn material is used.

  In addition, it is shown in FIG. 1 in the combined yarn portion rather than simply combining the first yarn 1A that is an S twist false twisted yarn and the second yarn 1B that is a Z twist false twisted yarn. By providing the entanglement nozzle 7 and performing the entanglement process, it is possible to easily manufacture one yarn that is difficult to separate.

  The entanglement nozzle 7 is an interlace nozzle that entangles filaments with each other by, for example, blowing compressed air at substantially right angles to the two yarns that have been combined, and performing the entanglement process using such an entanglement nozzle 7 The first filament 1A and the second filament 1B are entangled with each other and the first yarn 1A and the second yarn 1B are mixed substantially uniformly. It becomes possible to make a book thread.

  That is, the first yarn 1A, which is an S twist false twisted yarn, and the second yarn 1B, which is a Z twist false twisted yarn, are simply combined into a single yarn in which the residual trick is not too large. If it can be manufactured, it is not necessary to use the entanglement nozzle 7, but it is preferable to perform the entanglement process using the entanglement nozzle 7 when there is a case where it is separated into two instead of one yarn.

  Moreover, in this embodiment, it is set as the structure which implements the false twisting process and the combined yarn process mentioned above using one extending | stretching false twisting machine. If it is this structure, compared with the manufacturing method which performs a false twisting process and a combined yarn process using another apparatus, while being able to reduce manufacturing time significantly and also being able to reduce equipment cost, special false twisted yarn 1 Manufacturing cost can be reduced.

  As an example in which a single drawing false twisting machine is equipped with false twisting tools in both directions of an S twist false twisting tool and a Z twist false twisting tool, a false twisting device composed of one disk and two false twisting belts. There are already known false twisting machines and false twisting machines in which two disk friction false twisting units are arranged in parallel on one spindle.

  Moreover, in this embodiment, since one special false twisted yarn 1 is manufactured by combining two yarns (first yarn 1A and second yarn 1B), False twisting with a smaller pitch becomes possible by false twisting a yarn that is half the thickness of the yarn. Therefore, the bulky false twisted yarn can be produced, and the special false twisted yarn 1 exhibiting a high-quality feeling with excellent texture can be obtained.

  Next, an example of the special false twisted yarn 1 will be described.

  As the first yarn 1A, POY (undrawn yarn) composed of SD80 / 38 (80 denier 38 filament) of polyester semi-dal yarn was used. The same applies to the second yarn 1B.

  The first yarn 1A has a different draw ratio (also referred to as a draw ratio) and the second yarn 1B have a different draw ratio, the draw ratio is the same and the heater temperature is different, the draw ratio and the heater Three types of tests were performed with different temperatures.

  The drawing rate of the first yarn 1A was 1.72, the heater temperature was 270 ° C., the drawing rates of the second yarn 1B were 1.60 and 1.65, and the heater temperature was 170 ° C.

  As a result of testing two types of stretching ratios with a difference of 100 ° C. in the heater temperature, all showed uneven dyeing, but more stable unevenness of dyeing was confirmed when the difference in the stretching ratio was larger.

  The first yarn 1A and the second yarn 1B were both POY (undrawn yarn) made of polyester semi-dal SD80 / 38 (80 denier 38 filament).

  The first yarn 1A has a draw ratio (also referred to as a draw ratio) of 1.72 and a heater temperature of 290 ° C., and the second yarn 1B has a draw ratio of 1.60 and 1.72, and the heater temperature. Were three types of 150 ° C. (difference of 140 ° C.), 190 ° C. (difference of 100 ° C.), and 240 ° C. (difference of 50 ° C.).

  Even when the stretching ratio is the same, uneven dyeing appears as the heater temperature difference increases, but it has been found that high-pressure dyeing reduces the uneven dyeing. It was also found that uneven dyeing can be maintained even by high-pressure dyeing by varying the stretching ratio in addition to the heater temperature difference.

<Other Examples>
It has been found that uneven dyeing can also be exhibited by varying the twisting amount when falsely twisting the first yarn 1A and the second yarn 1B.

  As described above, according to the present invention, the first twisted yarn 1A and the second yarn 1B are subjected to false twisting with different draw ratios and heater temperatures, and the yarn after false twisting. Since the yarns are combined, a difference occurs in the degree of stretch and the degree of crimp between the first and second yarns, and unevenness in the longitudinal direction can be expressed. Therefore, it is possible to obtain the special false twisted yarn 1 that can exhibit non-uniform unevenness even when dyed in the same color, can exhibit a natural unevenness, and can be dyed in a flickering hue, and a method for manufacturing the same.

  In addition, a fabric made of a knitted fabric knitted using the special false twisted yarn 1 described above, that is, a first yarn 1A and a second yarn made of multifilament yarn and having different degrees of stretch and crimp. The fabric formed by weaving 1B exhibits a sharp feeling in addition to a slimy feeling. Therefore, even if the same yarn material is dyed in the same color, non-uniform unevenness can be expressed, a natural uneven feeling can be expressed, and a fabric that can be dyed in a flickering tone can be obtained.

  In particular, if the difference in the degree of crimp between the first yarn 1A and the second yarn 1B made of multifilament yarn is greater than or equal to a predetermined value, the fabric after knitting can express a sense of elasticity in addition to a slimy feeling. understood. For example, the yarns having a difference of about 5% or more such that the crimping degree of the first yarn 1A is 10% and the crimping degree of the second yarn 1B is 15% to 20%. The fabric obtained by knitting and weaving together is used to give a sharp feeling.

  That is, the fabric knitted using the special false twisted yarn 1 becomes a fabric that exhibits a good touch feeling in addition to being able to express a fluctuating hue derived from a high-quality natural material, and is worn by humans. It becomes suitable as a material for clothing.

  Therefore, the present invention can be suitably used for yarns for producing clothes and fabrics that are required to express the flickering tone of natural materials and to create a moist and calm atmosphere, and a method for producing the same. .

1 Special false twisted yarn 1A 1st yarn 1B 2nd yarn 2, 2A, 2B Supply roller 3, 3A, 3B False twist heater 4, 4A, 4B False twister 5, 5A, 5B Take-off roller 6 Combined roller 7 Entangling nozzle 8 Feeding roller 9 Winding roller 10 Winding package PA Yarn supply package (first yarn)
PB yarn supply package (second yarn)

It is a schematic explanatory drawing which shows the structural example of the special false twisted yarn which concerns on this invention. It is a schematic explanatory drawing which shows the concept of the manufacturing process of the special false twisted yarn which concerns on this invention.

As shown in FIG. 2 , the manufacturing method of the special false twisted yarn 1 according to the present embodiment includes a first yarn 1A drawn from the yarn supply package PA and a second yarn 1B drawn from the yarn supply package PB. Are wound together in a single package after each false twisting.

In addition, it is shown in FIG. 2 in the combined yarn portion rather than simply combining the first yarn 1A that is an S twist false twisted yarn and the second yarn 1B that is a Z twist false twisted yarn. By providing the entanglement nozzle 7 and performing the entanglement process, it is possible to easily manufacture one yarn that is difficult to separate.

Claims (9)

A special false twisted yarn manufactured by false twisting and combining a first yarn and a second yarn made of multifilament yarn, wound into a package,
It is produced by setting the stretching ratio and heater temperature when false twisting the first yarn and the stretching ratio and heater temperature when false twisting the second yarn to different values. Special false twisted yarn.   The amount of twisting at the time of false twisting of the first yarn and the second yarn is different between the first yarn and the second yarn. Special false twisted yarn described.   The special false twisted yarn according to claim 1 or 2, wherein the first yarn is S twist false twisted and the second yarn is Z twist false twisted yarn.   4. The entanglement process is performed to entangle the filaments with each other by blowing compressed air when the first yarn and the second yarn are combined. 5. Special false twisted yarn described in 1.   The special false twisted yarn according to any one of claims 1 to 4, wherein both the first yarn and the second yarn are made of a polyester multifilament yarn. A method for producing the special false twisted yarn according to any one of claims 1 to 5,
A false twisting process for false twisting a first yarn and a second yarn made of multifilament yarn; a combining yarn process for combining the first yarn and the second yarn; A winding process for winding the wound yarn around the package,
A special false twisted yarn produced by setting the first yarn draw ratio, the heater temperature, the second yarn draw ratio, and the heater temperature to different values in the false twisting step, respectively. Production method.   The amount of twisting at the time of false twisting the first yarn and the second yarn is different between the first yarn and the second yarn. A method for producing the described special false twisted yarn.   The false twisting process of the first yarn is an S twist false twisting process, the false twisting process of the second yarn is a Z twist false twisting process, and the stitching process is an SZ twisting process. The process for producing the special false twisted yarn according to claim 6 or 7, wherein these steps are performed in series using a single drawing false twister.   9. The method for producing a special false twisted yarn according to claim 8, wherein in the SZ yarn blending step, an entanglement process is performed in which compressed air is blown onto the yarn unit to entangle the filaments.

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