JP3022666U - Nylon processed yarn and polyester processed yarn - Google Patents

Abstract

(57) [Summary] [Purpose] To reduce the strength and elongation of nylon and polyester yarns and to expand their applications. [Constitution] A raw nylon fiber f is fed to a heater 6 through a feed roller 5, heated by the heater 6, twisted by a spindle 7, and then fed to a take-up roller 9 through a delivery roller 8. To do. At this time, the temperature of the heater 6 is set to 1
90 to 230 ° C., the rotation number of the spindle 7 is 1.8 × 10 ^{5 to} 2.2 × 10 ⁵ per minute, the twist number of the nylon raw thread f is 2500 to 3100 per meter, and the rotation number and the original number of the spindle 7 are 90 ° to 230 ° C. The peripheral speed of the feed roller 5 is -3.0 to -4.0% with respect to the yarn feeding speed calculated from the twist number of the yarn f,
Further, the peripheral speed of the delivery roller is set to 6.5 to 7.5%, and the nylon processed yarn F that can be used for the material of the adhesive tape or the like is obtained.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a nylon-processed yarn and a polyester-processed yarn, and particularly to a nylon-processed yarn and a polyester-processed yarn which are useful as a material for an adhesive tape by reducing the strength and elongation of the raw yarn.

[0002]

[Prior art]

 Synthetic fibers such as nylon yarn (polyamide fiber) and polyester yarn are superior to natural fibers in strength, abrasion resistance, water resistance, chemical resistance, etc., and the demand for them is extremely remarkable in recent years. These synthetic fibers are made by polymerizing a specific compound to produce a polymer and spinning the polymer, and are widely used as various materials such as clothing. The bulk yarn is given a certain processing to give it bulkiness.

Conventionally, as the processing method, there are false twisting, air injection, indentation, oversight, etc. Among them, the false twisting method is equipped with a heater in front of the false twisting device to perform twisting and heating. This is a kind of tension heat treatment in which untwisting is performed continuously. This is roughly classified into spindle type, friction type and nip belt type by the type of false twisting device.

The spindle type generally has a built-in capsten type spinner, and the spindle is pressed against a magnet so that the speed can be increased.

According to this spindle type yarn processing machine, the raw yarn of nylon or polyester passed through the spindle is fed to a heater through a feed roller, heated by the heater and then heated by the spindle. The yarn is twisted and then fed to the take-up roller through the delivery roller to form the processed yarn.

In addition, the processing conditions at that time are as follows. For nylon yarn, the temperature of the heater is about 180 ° C., the rotation speed of the spindle is about 3.6 × 10 ⁵ per minute, and the twist number of the raw yarn is about 1 meter. Approximately 3400, the peripheral speed of the feed roller is approximately -2.0%, the peripheral speed of the delivery roller is approximately 7.0%, and the polyester yarn is the polyester yarn that is calculated from the number of rotations of the spindle and the number of twists of the original yarn. Then, the temperature of the heater is about 210 ° C, the rotation speed of the spindle is about 3.5 × 10 ⁵ per minute, the number of twists of the raw yarn is about 3300 per meter, the number of rotations of the spindle and the number of twists of the raw yarn. It is customary to set the peripheral speed of the feed roller to about 3.0% and the peripheral speed of the delivery roller to about 4.0% with respect to the yarn feeding speed calculated from

[0007]

[Problems to be solved by the device]

 However, according to the conventional textured yarn obtained as described above, in some fields, because of its high strength and high elongation, it cannot be used as a substitute for natural fiber.

For example, in an adhesive tape formed by applying an adhesive such as a rubber elastomer to a woven cloth such as hemp or cotton, if a synthetic fiber such as a nylon thread or a polyester thread is used as the cloth, a knife is removed. Cannot be cut easily.

For this reason, in such adhesive tapes, natural fibers have been used as the base material until now, but hemp and cotton cloths are thick and have a large weight and volume per unit length, so that they can be stored or transported. It had the drawback of being difficult.

Therefore, the present invention is aimed at the thin and light characteristics of nylon threads and polyester threads, and aims to expand the applications of nylon-processed threads and polyester-processed threads by effectively utilizing these characteristics. It is a thing.

[0011]

[Means for Solving the Problems]

In order to achieve the above-mentioned object, the present invention feeds nylon raw yarn to a heating device through a feed roller, heats it with the heating device, twists it with a spindle, and then delivers it to a take-up roller through a delivery roller. In the nylon processed yarn obtained by feeding, the temperature of the heater is 190 to 230 ° C., the rotation speed of the spindle is 1.8 × 10 ^{5 to} 2.2 × 10 ⁵ per minute, and the nylon raw material is used. The number of twists of the yarn is 2500 to 3100 per meter, and the peripheral speed of the feed roller is -3.0 to -4 with respect to the yarn feeding speed calculated from the number of rotations of the spindle and the number of twists of the nylon raw yarn. 0.0%, and a nylon processed yarn obtained by setting the peripheral speed of the delivery roller to 6.5 to 7.5%.

In addition, in the present invention, the polyester raw yarn is fed to a heater through a feed roller, heated by the heater, twisted by a spindle, and then fed through a delivery roller to a winding roller. In the polyester processed yarn obtained by the above, the temperature of the heater is 220 to 260 ° C., and the rotation speed of the spindle is 1. 8 × 10 ^{5 to} 2.2 × 10 ⁵ , the number of twists of the polyester raw yarn is 2450 to 2850 per meter, the above-mentioned with respect to the yarn feeding speed calculated from the number of revolutions of the spindle and the number of twists of the nylon raw yarn. It is intended to provide a polyester processed yarn which can be obtained by setting the peripheral speed of the feed roller to 1.5 to 2.5% and the peripheral speed of the delivery roller to 4.5 to 5.5%.

[0013]

[Action]

 According to the present invention, the nylon raw yarn and the polyester raw yarn are heated by the heater, twisted by the spindle, further fed by the feed roller and the delivery roller, and simultaneously untwisted. Then, strength and elongation are reduced during the treatment process.

[0014]

[Embodiment of device]

 The present invention will be described below. FIG. 1 is a schematic plan view showing an example of a yarn processing machine. This processing yarn machine is a spindle type and can feed the raw yarn in two lines. In the figure, 1 is a drum, 2 is a tension roller, 3 and 4 are multi-groove guides, 5 is a feed roller, 6 is a heater, 7 is a spindle, 8 is a delivery roller, and 9 is a take-up roller. The nylon raw yarn f or polyester raw yarn f ′ that has been turned is continuously fed from the feed roller 5 side to the delivery roller 8 side in the process to form a nylon processed yarn F or a polyester processed yarn F ′, which are processed after processing. Is taken up by the take-up roller 9.

In detail, the raw yarns f and f ′ fed from the drum 1 are guided to the feed roller 5 via the tension roller 2 and the multi-groove guide 3, and fed to the heater 6 through the feed roller 5. While heating, the heated original yarns f and f'are twisted by the number of twists set by the spindle 7, and the twisted original yarn is fed to the take-up roller 9 through the delivery roller 8.

Processing conditions such as the temperature of the heater 6, the number of rotations of the spindle 7, and the number of twists of the original yarns f and f ′ are set on a setting board (not shown) and controlled according to the set values. It has become so. In particular, by setting the ratio of the feed roller 5 and the delivery roller 8 to the yarn feeding speed calculated from the number of rotations of the spindle and the number of twists of the original yarn, control is performed according to the set value. ing.

The feed roller 5 and the delivery roller 8 are each composed of a pair of rollers whose peripheral surfaces are in pressure contact with each other, and are individually rotated by a power source (not shown). Further, a heater 6 and a spindle 7 are provided between the feed roller 5 and the delivery roller 8, and the raw yarns f and f ′ fed by the feed roller 5 and the delivery roller 8 are heated by the heater 6. The yarn is twisted by the spindle 7 and untwisted by utilizing the peripheral speed difference between the feed roller 5 and the delivery roller 8 to give the original yarn the required strength and elongation.

Next, in FIG. 2, reference numeral 7a is a spinner built in the spindle, and the nylon raw thread f or the polyester raw thread f ′ inserted in the spindle 7 is wound around the spinner 7a only once. ing.

Here, in the present invention, in the nylon raw yarn f, the temperature of the heater 6 is 190 to 230 ° C., and the rotation speed of the spindle 7 is 1.8 × 10 ^{5 to} 2.2 × 10 per minute. ⁵ , the twist number of the raw yarn f is 2500 to 3100 per meter, and the peripheral speed of the feed roller 5 is -3.0 to -4.0 with respect to the yarn feeding speed (spindle rotation number / original yarn twist number). % (55.7 to 85.4 m / min), and the peripheral speed of the delivery roller 8 is set to 6.5 to 7.5% (61.8 to 94.6 m / min) with respect to the yarn feeding speed, preferably. The temperature of the heater 6 is 210 ° C., the number of rotations of the spindle 7 is 2.0 × 10 ⁵ per minute, the number of twists of the raw yarn f is 2800 per meter, and the peripheral speed of the feed roller 5 is relative to the yarn feeding speed. -3.5% (68.9 m / min), and the peripheral speed of the delivery roller 8 as the yarn feeding speed. On the other hand, it is set to 7.0% (76.4 m / min). The results are shown in Table 1. However, the raw yarn is 70d / 18 (70 denier with 18 filaments), and the values in the table are average values of 5 times.

[0020]

[Table 1]

As can be seen from Table 1, under the above-mentioned processing conditions, the obtained nylon processed yarn F has a strength of 384.3 Kgf to 154.8 Kgf and an elongation of 47.8% to 20.6%. It is halved for each.

On the other hand, in the polyester raw yarn f ′, the temperature of the heater 6 is 220 to 260 ° C., the rotation speed of the spindle 7 is 1.8 × 10 ^{5 to} 2.2 × 10 ⁵ per minute, and the raw yarn f ′ is The number of twists is 2450 to 2850 per meter, and the peripheral speed of the feed roller 5 is 1.5 to 2.5% (64.1 to 92) with respect to the yarn feeding speed (rotation number of spindle / twist number of original yarn). 0.0 m / min), and the peripheral speed of the delivery roller 8 is set to 4.5 to 5.5% (66.0 to 94.7 m / min) with respect to the yarn feeding speed, and the temperature of the heater 6 is preferably 240 ° C. The number of rotations of the spindle 7 is 2.0 × 10 ⁵ per minute, the number of twists of the raw yarn f ′ is 2660 per meter, and the peripheral speed of the feed roller 5 is 2.0% of the yarn feeding speed (76. 7 m / min), and the peripheral speed of the delivery roller 8 is 5.0% (7 8.9 m / min). The results are shown in Table 2. However, the raw yarn f'is 120d / 36, and the numerical values in the table are average values of 5 times.

[0023]

[Table 2]

As can be seen from Table 2, under the above-mentioned processing conditions, the obtained polyester processed yarn F ′ has a strength of 337.5 Kgf to 251.8 Kgf and an elongation of 30% to 16.3%. It is falling.

By the way, the nylon-processed yarn F and polyester-processed yarn F ′ obtained as described above are woven by a weaving machine or the like into a cloth, and a rubber-based adhesive or the like is applied to one side thereof to form an adhesive tape. Can be made of fabric.

Although 120 denier polyester raw yarns are used as the polyester yarns in the above example, 75 to 150 denier polyester yarns may be used.

[0027]

[Effect of device]

 According to the present invention, a raw yarn of nylon or polyester is processed under predetermined processing conditions to produce a nylon processed yarn and a polyester processed yarn having low strength and elongation. Therefore, these synthetic fibers can be used as a material for an adhesive tape. The application can be expanded greatly.

In particular, when it is used as a material for an adhesive tape, it has good compatibility with rubber-based adhesives, and its strength and elongation are not so different from those of natural fibers such as cotton thread, so that the tape's cutability is comparable to that of conventional tapes. It is good. Further, it can be manufactured at a lower cost than a natural fiber cloth, and since the fineness is small, the volume and weight per unit length can be reduced. In particular, the weight ratio can be reduced to about one-third of that of conventional products, resulting in good storage and transportability.

[Brief description of drawings]

FIG. 1 is a schematic plan view showing a process for producing a textured yarn.

FIG. 2 is a schematic plan view showing an enlarged spindle.

[Explanation of symbols]

 1 Drum 2 Tension roller 3, 4 Multi-groove guide 5 Feed roller 6 Heater 7 Spindle 8 Delivery roller 9 Winding roller f Nylon raw thread f'Polyester raw thread F Nylon processed thread F'Polyester processed thread

Claims (2)

[Scope of utility model registration request] 1. Obtained by feeding a nylon raw yarn to a heater through a feed roller, heating it by the heater, twisting it with a spindle, and then feeding it through a delivery roller to a winding roller. In the nylon processed yarn, the temperature of the heater is 190 to 230 ° C., and the rotation speed of the spindle is 1.8 × 10 ^{5 to} 2.2 × per minute.
10 ⁵ , the number of twists of nylon raw yarn is 25 per meter
00-3100, the peripheral speed of the feed roller is -3.0 to -4.0%, and the peripheral speed of the delivery roller is relative to the yarn feeding speed calculated from the number of revolutions of the spindle and the twist number of the nylon raw yarn. Nylon textured yarn obtained as 6.5-7.5%. 2. A polyester raw yarn is obtained by feeding a polyester raw yarn to a heater through a feed roller, heating it by the heater, twisting it by a spindle, and then feeding it through a delivery roller to a winding roller. In the polyester processed yarn, the temperature of the heater is 220 to 260 ° C., and the rotation speed of the spindle is 1.8 × 10 ⁵ to 1 minute / minute.
2.2 × 10 ⁵ , the twist number of the polyester raw yarn is 2450 to 2850 per meter, and the peripheral speed of the feed roller is set to the yarn feeding speed calculated from the rotation number of the spindle and the twist number of the nylon raw yarn. Polyester processed yarn obtained with 1.5 to 2.5% and peripheral speed of the delivery roller of 4.5 to 5.5%.