JPS62117841A - Production of raised filament yarn - Google Patents

Abstract

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

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) These inventions relate to methods for producing raised filament yarns.

(Prior art) Filament yarn is manufactured by extruding molten resin through a nozzle, cooling and stretching it, then heat-treating it, bundling the manufactured filaments, and further heating if necessary. There is.

However, this filament yarn is smooth, and suffers from the drawbacks of being less prone to snags and lacking in bulk.

Therefore, attempts have been made to produce filament yarns that are fluffy, warm, and rich in bulk through various processes such as cutting, dividing, and bundling filament yarns. For example, the 16th special public
The invention described in Publication No. 462 is a raised filament yarn manufacturing device characterized by having a cutting section, a splitting section, a phase-shifted needle forer, and a converging section arranged as shown in FIG. Filament yarns (1) produced by a known method are bundled to form a filament yarn, which is then passed through a cutter roller (2) and an anvil roller (
3) is cut by the squeezing force and sliding force between both rollers of the cutting section that are in contact with each other, and then separated by the apron (4) and porcupine roller (5) of the splitting section to make the filament yarn. By increasing the degree of parallel arrangement, further,
This method is characterized in that a part of the misaligned needle fora provides a high degree of fiber splitting action, and the fibers are collected in a converging section to form a thread.

(Problems to be solved by the invention) However, in this conventional method, the manufacturing process is complicated and the scale of the equipment is large because the filament yarn has to be cut, separated, and bundled. It had become a thing. Furthermore, since there are a large number of manufacturing processes involved in its manufacture, extremely sophisticated technology is required to manage each process, resulting in high manufacturing costs.

In view of the above-mentioned problems, these inventions have not only the smoothness and smooth feel of filament yarns, but also the filament yarns, which are fluffy, warm and bulky, and require fewer work steps.

The object of the present invention is to provide a 5A method for raising a raised filament yarn, which can be manufactured easily and at low cost even in small-scale equipment.

(Means for Solving the Problems) That is, in the first invention, a plurality of filaments are twisted in a twisted state to form a filament yarn, and then this filament yarn is used as a blade body. Pass it over the blade while making contact.

This method of producing a raised filament yarn is characterized in that among the filaments constituting the filament yarn, filaments 1 located in the surface layer of the filament yarn are selectively cut and twisted again.

The second invention involves twisting a plurality of filaments in a bundle to form a filament yarn, and then reciprocating the blade in a direction different from the linear direction of the filament yarn. This filament yarn is passed over the blade while being in contact with the blade, and the filaments located in the surface layer of the filament yarn among the filaments constituting the filament yarn are selectively cut.

This is a method for producing a raised filament yarn, which is characterized by retwisting the yarn.

Further, in the third invention, a plurality of filaments are bundled and twisted to form a filament yarn, and then the filament yarn is made to meander and brought into contact with the blade body. This is a method for producing a raised filament yarn, which is characterized in that the filament yarn is passed through a filament yarn, selectively cutting the filaments located in the surface layer of the filament yarn among the filaments constituting the filament yarn, and twisting the filament yarn again.

(Example) Before explaining the invention of these manufacturing methods,
For convenience of explanation, apparatuses used to implement these manufacturing methods will be described with reference to the drawings.

FIG. 1 is a perspective view of a cutting device (20) which is a feature of the device used to carry out these inventions.

First, this cutting device (20) will be explained.

This consists of the front row, roller (14) (14), thread guide (24), blade (22), and back roller (15) (
15).

As shown in FIGS. 1 and 2, this cutting device (20)
At the rear of the heating device (not shown), two front rollers (14) (14) facing each other are moved horizontally in a direction perpendicular to the line direction of the filament yarn (12) (direction of arrow A in the figure). Front roller (14014
), as shown in Figs. 1 and 2, a movable plate (23) that can reciprocate in a direction different from that of the filament yarn (12) (direction of arrow BC in the figure) is installed horizontally. A blade body (22) is fixed to two movable plates. Cut WR parallel to this blade (22)? Side wall (2) of t11 (20)
A fixing plate (25) is provided protruding from 1), and this fixing plate (25)
The thread guide (24) is fixed to the thread guide (24). A back roller (15015) is provided behind it.

As shown in FIG. 2, the yarn guide (24) is provided with a plurality of recesses (26) throughout its length, through which the filament yarn (12) passes. This recess (25)
By passing the filament yarn (12) through the filament yarn (12), it is possible to prevent the filament yarn (12) from shifting laterally and to provide a constant interval between each filament yarn (12).
It is now possible to regulate the passage routes of A blade (22) is provided adjacent to the thread guide (24).

As shown in FIG. 2, the blade body (22) is provided so as to be able to reciprocate in a direction perpendicular to the line direction of the filament yarn (12), and the movable plate (23) is disposed between the fixed plates (25).
), and is provided on a cane that can be reciprocated as the movable plate (23) reciprocates. Although ceramics was used as the material for the blade (22) in the previous example, it may be made of any material such as glass or iron, and the durability and cutting efficiency of the blade will vary depending on the material to be cut. You should consider and choose.

Note that the blade body (22) only needs to be installed horizontally in a direction different from the linear direction of the filament yarn (12), and may be installed not only in a direction perpendicular to the linear direction of the filament yarn (12) but also diagonally. The movable plate (23) is moved so that the cutting edge of this blade (22) comes into contact with the filament yarn (12) at a predetermined angle.
)), is fixed. Then, the filament yarn (12) passes over this blade (22), and as shown in 6UA and FIG. Filament (11) located in the surface layer of
and the blade body (22), and each filament (If) is selectively cut by the contact.

In this case, the number of filaments (11) to be cut can be determined by changing the tension of the filament yarn (12). It is determined by setting the ratio of the number of rotations of the howe crawler (ts) (ts) to the number of rotations of the back roller (I).
s) Change the rotation speed of (Is) to the front roller (14)
(14) The rotation speed is higher than that, and the rotation ratio is 2.
It is preferable that the filament yarn (12) itself be cut with a low tension of 2% or less.

Therefore, in order to further increase the filament cutting efficiency if necessary, for example, as shown in Figure 3, three blades (
22) are provided above and below the filament yarn (12), and yarn guides (24) are arranged in front of the first blade (22) and behind the last blade (22). It's okay. Also: As shown in the JSJ diagram, three blade bodies (
22) may be provided below E of the filament yarn (12), and thread guides)' (24) may be arranged between these blade bodies (22).

ESS L [: As shown in 21, a back roller (+5) (15) is arranged behind the blade (22),
A predetermined tension is applied to the selectively cut filament yarn (12) together with the front rollers (14) (14).

Next, the method for producing a raised filament yarn according to the first invention, the method for producing a raised filament yarn according to the second invention, and the method for manufacturing a raised filament yarn according to the third invention will be described in detail.

Now, the first invention involves a heating process of twisting a filament yarn consisting of a plurality of filaments, and a heating process in which the filament yarn is passed over the blade while being in contact with the blade, thereby twisting the filament yarn of the filament yarn. The filament yarn is characterized by comprising a cutting process for selectively cutting the filaments located in the surface layer of the filament yarn, and a heating process for twisting the filament yarn several times. First, a state in which multiple filaments are bundled Twisting is applied to form a filament yarn. As shown in Fig. 5, a plurality of filaments are combined into a single thread, and then, as shown in Fig. 6, this is twisted.
Once a filament yarn (12) is formed. The number of twists is set depending on the thickness of the filament yarn (12), that is, the number of filaments (11) to be bundled, or depending on the use of the yarn. In the case of this example, a ring heating mechanism (not shown) applies twists of 80 twists/m, and
A 40F, 1060d filament yarn (12) was formed.

Next, as shown in FIGS. 1 and 2, the heated filament yarn (12) is heated in the linear direction (direction indicated by the arrow in the figure).
Two front rollers (14) (14) and a back roller (Is
) (15), and this filament yarn (12) has a ratio of the rotational speed of the back rollers (15) (15) to the rotational speed of the front rollers (14) (14), that is, the hack roller (+5 ) (+5) rotation speed or a ratio of −E rotations of the front roller (+4) (14), or give a low tension of 2% or more F.

Next, this filament yarn (12) is passed between the front roller (1, 4) (+4) and the back roller (15
) (15), the filament yarn (22) of the filaments (11) constituting the filament yarn (12) is passed through the blade (22) 1 while being in contact with the blade (22) disposed between the filament yarn (12). The filament (11) located in the surface layer portion of I2) is selectively cut. Figures 1 and 2
[As shown in A, first, this filament yarn (1
2) is fixed to the side wall (2I) of the cutting device (20) and fixed to the side wall (2I) of the cutting device (20). This filament yarn (12) is passed through the recess (2G). By passing the filament yarn (12) through this recess (26), it is possible to prevent the filament yarn (12) from shifting laterally and to provide a constant spacing between each filament yarn (12). .

Next, as shown in FIGS. 1 and 2, the filament yarn (2) is passed over the blade (22) while being in contact with the blade (2Z).

In this case, it is desirable that the blade body 2) is provided so that its blade edge contacts the filament yarn (I2) at a predetermined angle, and depending on the angle, the cutting force of the blade body (22) may be too large. Care must be taken because the cutting force of the blade (22) may be too small and the cutting rate of the filament yarn (12) may be low.

Then, filament yarn (1) is attached to this blade (22)H.
2) to selectively cut the filaments (11) that alternately appeared on the surface layer portion of the filament yarn (12) due to the heat treatment among the filaments (I+) constituting the filament yarn (12). That is, the rotation speed of the back roller (15) (Is) or the front roller (
14) The tension of the filament yarn (12) is set to 7A within 2% of the rotation speed of (14), and the filament (11) is brought into contact with the blade (22) and cut.

In addition, this filament yarn (12) and the blade body (22)
When the tension during contact with is strong, more filaments (11) are cut, while when the tension is weak, fewer filaments (11) are cut. .

The filament yarn (12) thus cut is shown in FIG. As shown in the figure, the cut filament yarn (12) becomes fluff (13) with long piles and becomes a filament yarn (12) with a large volume.

After this, the filament yarn (12) is further twisted. In other words, the filament (11) which has become a long fluff (13) as described in 1.
The cut filaments (11) are twisted into a filament yarn (2) to form a predetermined raised state.
12) prevents the cut filaments (11) from falling out. In the case of this embodiment, the heating mechanism (not shown) is used to increase the temperature to 80fi again.
/m twist was applied. The raised filament yarn produced in this manner is shown in FIG. 8. In this heating step, the larger the number of twists, the lower the bulkiness of the raised filament yarn, while the smaller the number of twists, the lower the bulkiness of the raised filament yarn. , it is possible to obtain a fluffy, bulky, raised filament yarn.

This filament yarn is a warm and fluffy brushed filament yarn, and when this brushed filament yarn is used as a yarn for lobes, the friction between the filament yarns is large, so the friction between the lobes is also large, and the It is possible to obtain lobes that are less likely to be misaligned and have high mechanical strength.

Next, the second invention and the third invention will be explained.

The second invention includes a heating process for twisting a filament yarn consisting of a plurality of filaments, and a blade body reciprocating in a direction different from the linear direction of the filament yarn, while bringing the filament yarn into contact with the blade body. It is characterized by comprising a cutting step in which the filaments are passed over a blade body to selectively cut the filaments located in the surface layer of the filament yarn among the filaments constituting the filament yarn, and a heating step in which the filament yarn is then twisted again. That is.

The third invention includes a heating step for twisting a filament yarn consisting of a plurality of filaments, and a heating process for twisting the filament yarn, and passing the filament yarn over the blade while making the filament yarn meander while making contact with the blade. This method is characterized by comprising a cutting step of selectively cutting filaments located in the surface layer portion of the filament yarn among the constituent filaments, followed by a heating step of twisting again.

Both the second invention and the third invention have exactly the same configuration as the first invention except for the cutting process, and the cutting process will be explained here. 5th r! l
As shown in Figure 6, a plurality of filaments are tied together to form a single thread, and then, as shown in Figure 6, the filament yarn (12) formed by twisting is selectively cut. .

As shown in FIGS. 1 and 2UA, first, this filament yarn (12) is fixed to a long plate-like fixing plate (25) protruding from the side wall of the cutting device ff1 (20), The filament yarn (l2) is passed through the recess (26) of the yarn guide (24) provided throughout its longitudinal direction.
Each filament yarn (12
) with a certain spacing between the filament yarns (1Z)
Regulate the passage route of

Next, as shown in FIG. 3 and FIG.
This filament yarn (12) is attached to a blade body (22) that is movable in a reciprocating manner in the B force direction, is fixed to a movable plate (Z3), and is provided in a reciprocating moat as the movable plate reciprocates.
Pass it while touching it. In this example, the blade (22) was reciprocated 70 times per minute. As a result, in the second invention, since the blade body (22) reciprocates, each filament (11) can be cut more efficiently. ) is constantly changing, and lint accumulates at the - point of the blade (22), causing the raised filament yarn (12
) or become impossible to manufacture.

In addition, as shown in FIGS. 1 and 2, a third invention is such that a movable plate (23) to which the blade (22) described above is fixed is provided in a stationary state, and a thread guide (24) is fixed. Fixed plate (25
) is provided in the reciprocating moat, and the filament yarn (12) is moved by the reciprocating movement of the yarn guide (24).
12) Meandering or reciprocating in a direction perpendicular to the line direction of 12) allows more efficient cutting.

(Effects of the Invention) As detailed above, in the first invention, a plurality of filaments are bundled and twisted to form a filament yarn, and then the filament yarn is brought into contact with a blade body. A method for producing a raised filament yarn, which comprises passing the filament yarn over a blade, selectively cutting the filament 1- located in the surface layer of the filament yarn among the filaments constituting the filament yarn, and twisting the filament yarn again. It is. In addition, in the second invention, a plurality of filaments are twisted in a bundle to form an -Ej- filament yarn, and then a reciprocating blade is applied in a direction different from the linear direction of the filament yarn. At the same time, the filament yarn is passed over the blade while being in contact with the blade, selectively cutting the filaments located in the surface layer of the filament yarn among the filaments that make up the filament yarn, and twisting it again. 58 of the brushed filament yarn, which is characterized by the following! It is a construction method. Further, in the third invention, a plurality of filaments are twisted in a twisted state to form a filament yarn, and then the filament yarn is twisted while being brought into contact with the blade while making the filament yarn meander. This method of producing a raised filament yarn is characterized by passing the filament yarn over a blade, selectively cutting the filaments located in the surface layer of the filament yarn among the filaments constituting the filament yarn, and twisting the filament yarn again.

Therefore, in these inventions, by using a cutting device and a heating mechanism before and after the cutting device, it is possible to produce a raised filament yarn that is not only smooth and has a smooth feel, but also has a fluffy, warm feel and is rich in bulk. Compared to the conventional method of producing raised mylamen 1-yarn, the production process is less, and the equipment required for this can be made smaller.

Furthermore, since the number of manufacturing steps is small, sophisticated technology is not required to manage each step, and manufacturing costs can be reduced.

Furthermore, according to the manufacturing methods of these inventions, filaments located in the surface layer portion can be selectively cut by increasing or decreasing the tension of the filament yarn, and raised filament yarns suitable for the purpose can be obtained. .

Furthermore, since the filaments can be selectively cut, the amount of uncut filaments remaining in the filament yarn can be adjusted, thereby increasing the stiffness of the remaining filaments and increasing the mechanical strength of the filament yarn. The mechanical strength of the filament yarn can be lowered by increasing the filament 6μ or by reducing the remaining filament 6μ.

[Brief explanation of drawings]

Figure 1 shows the first, second, and so on. FIG. 2 is a perspective view of the cutting device similarly shown in FIG. 1, and FIG. 3 is a side view showing the cutting device of the napping device according to the third invention; FIG. 4 is a side view showing another arrangement of the plural thread guides and blades of the cutting device, FIG. 5 is a perspective view showing untwisted thread, and FIG. 6 is a side view showing the arrangement of the cutting device. FIG. 7 is a perspective view showing the thread after heating; FIG. 7 is a perspective view showing the thread after cutting;
Figure 8 is a perspective view showing the yarn further heated after cutting;
The figure is a side view of a conventional cutting device. Description of symbols Blade body...22 Yarn guide...24 Filament...11 Filament yarn...12 Patent applicant
Tire Co., Ltd. Figure 1; Figure 59 Figure 3 Figure 5

Claims (3)

[Claims] (1) A plurality of filaments are bundled and twisted to form a filament yarn, and then this filament yarn is passed over the blade while being in contact with the blade to separate the filaments that make up the filament yarn. A method for producing a raised filament yarn, which comprises selectively cutting the filaments located in the surface layer of the filament yarn and twisting them again. (2) Twisting multiple filaments in a bundle to form a filament yarn, then reciprocating the blade in a direction different from the linear direction of the filament yarn, and twisting the filament yarn into the blade. A method for producing a raised filament yarn, which comprises passing the filament yarn over a blade while in contact with the filament yarn, selectively cutting filaments located in the surface layer of the filament yarn among the filaments constituting the filament yarn, and twisting the filament yarn again. . (3) Twisting a plurality of filaments in a bundle to form a filament yarn, then passing the filament yarn over the blade while making the filament yarn meander while making contact with the blade; A method for producing a raised filament yarn, which comprises selectively cutting filaments located in the surface layer of the filament yarn and twisting the filament yarn again.