JPS61215722A - Production of spun yarn for design - Google Patents

Abstract

PURPOSE:To obtain various spun yarn full of variety, by feeding short fiber bundle spun from another draft part to the retroacting zone of twisting of twist type fine spinning frame by pressurized air, joining both fiber bundles and selecting pressure of pressurized air. CONSTITUTION:The fleece 11 spun from the front roller 12 and the front bottom roller 17 is introduced into the feed pipe 14 by a suction flow at the inlet side a of the feed pipe by pressurized air made to flow from the feed pipe 14 and the pressurized air flow inlet 13. The fleece 11 is placed on a running air flow in the feed pipe, vibrated, diffused, drafted, sent out of the outlet side b in an overfed state and fed to the retroacting zone 15 of twisting of the fleece 3 which is being subjected to twisting action, to form spun yarn for design.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method for very effectively obtaining various designed spun yarns using a twisting spinning machine.

[Conventional technology]

Up until now, many methods have been proposed for manufacturing yarns with varying thicknesses, such as slub yarns and looped yarns, using twisting spinning machines such as ring spinning machines. The main method is to randomly change the draft amount to obtain thickness changes.
The actual situation is that the size change is limited and the draft amount is changed, resulting in poor process stability, frequent thread breakage, and low independence.

Some proposals have been made, such as the hollow spindle spinning method and the method of installing two sets of draft parts and switching and supplying two materials of gold to obtain a designed yarn, with the aim of improving spontaneity, but these methods Inazun also requires major modifications to machinery and the installation of expensive production equipment. Additionally, a method has been proposed in which multiple rovings are supplied to the same draft area, but although this method allows for material composition, it is impossible to obtain a design effect. Furthermore, although it is possible to perform two types of draft multipliers at the same time on the same spinning machine on a single side basis, it is mechanically impossible to change the draft for each spindle.

[Problem to be solved by the invention]

The present invention provides a method for very easily obtaining spun decorative yarn containing various shapes using a twisting spinning machine, which could not be achieved using conventional spinning methods.

[Means for solving problems]

The present invention provides a twisting spinning machine in which short fiber bundles spun from another draft section are added to a twisting and twisting area where short fiber bundles spun from a draft section are twisted and formed into yarn. The method for producing a designed spun yarn is characterized by supplying compressed air to combine both fibers and twisting them to form a yarn.

Hereinafter, the present invention will be explained in detail with reference to the drawings.

FIG. 1 is a process schematic diagram showing a representative example of the present invention. A fiber bundle (1) such as roving is given a predetermined draft in the t-draft section (2), sent out from the front roller (4) as the 17th wreath (3), and then twisted by rotation of the spindle (5). At the same time, the trapeller (8) on the ring rail (7) is attached to the bobbin (6) attached to the spindle (5).
In a ring spinning machine, in which yarn is formed by winding through a
1o) is drafted and discharged as the 27th fleece (11) from the front roller (12) and then added to the first fleece (3) via a transport pipe (14) t'' with a compressed air inlet (13) t''. Supply to the twisting and twisting area (15),
After the 17th wreath (3) is twisted and thread-formed and wrapped around it, the ring rail (7) is attached to the bobbin (6) attached to the spindle (5) while adding a predetermined twisting deposit.
A yarn is formed through the upper traveler (8) and the process is completed.

Furthermore, to describe the method of the present invention in detail, the transport pipe (14) t
: [, circular cross-section tube or pipe with an inner diameter of 10 to 20
It is good to make the design effect of the song appear well,
The air pressure required to transport the second fleece (11) is α1 to 2.0 K9
This is possible with a low air pressure of 7cm". In this case, it is necessary to set the inlet (13) so that the inlet side (a) of the 27th lease (11) of the transport pipe (14) becomes the suction air flow. At the same time, it is also necessary to ensure that there is no leakage.

FIG. 2 shows a model diagram of the yarn obtained under the conditions of Example 20, in which a transport tube (14) is attached to the outer periphery of the twisted fiber bundle (A) forming the core by pressurized air. Vibration inside,
This figure shows the state in which the fiber bundles (b) supplied through diffusion and drafting are randomly wrapped around each other, forming a slab part (c) and a loop part (d), which is a novel spinning design with various changes. It's a thread.

FIG. 3 is a diagram of a comparative model carried out without using pressurized air in the method of the present invention, in which the supplied fiber bundle (H) is simply twisted 9 times into a twisted fiber bundle (E). The shape is the same as that of the spun yarn.

[Effect]

FIG. 4 is a schematic enlarged view of the main part explaining the operation of the present invention, and shows the second fleece (11) which is spun by the front roller (12) and front bottom roller (17) by drafting the fiber bundle. A suction flow is generated on the transport pipe inlet side (a) by the pressurized air flowing in from the transport pipe (14) and the pressurized air inlet (13), and the 27th lease (11
) is guided into the transport pipe (14) by the suction flow, rides on the traveling air flow in the transport pipe, is vibrated, diffused, and drafted, and then is sent out from the outlet side (1)) in an overfeed state. The yarn is supplied to the twisting area (15) of the fleece (3) under the twisting action to form a design yarn, and when the pressurized air pressure is 02 kC97 cm, the yarn inside the transport pipe (14) is The state of the 27th lease (11) is vibrated and diffused, and a draft of 1.1 to 1.5 times is added, forming an overfeed state, and the state of the 17th lease (11) is
) are merged and collected in the twisting and twisting area (15), and are wound around the outer periphery of the 17th wreath (3), forming light loops and slabs, and forming a covering yarn. Also,
When the pressurized air pressure is 0.5 to 1.0' to 9/cIR, the vibration, diffusion, and draft of the 27th lease (11) inside the transport pipe (14) are (for L2Y/I:M construction) More intensely, a draft of 1.5 to 2 times is added, forming an overfeed state, which is collected at the twisting and twisting area (15) of the 17th lease (3), and the shape of the slab and loop is When the pressurized air pressure is 1.8 to 2.0 cm, yarns are formed while randomly forming the transport pipe (14 cm).
) The vibration and diffusion of the 27th fleece (11) in In step 15), the fibers are merged and collected to randomly form slabs and loops, and to form a thread having raised thread-like fuzz. If the pressurized pressure is less than α1 q/cm, the 27th wreath (11) will not have enough suction power, and the travel of the 27th wreath (11) will increase, such as being rolled up by the front roller (12). Vibration even when f′L 几.

Diffusion and drafting are extremely rare, no effect is observed, and only finely spun heathered yarn can be obtained. On the other hand, the inlet (
13) Pressurized air pressure flowing into F is 2.0 kC97cm
” f, the 27th wreath (11) will be extremely diffused after being sucked in and will not be collected in the twisted/twisted retracement area (15) of the 17th wreath (3), This may cause process troubles such as scattering inside the fleece and preventing the twisting and twisting of the first fleece (3).Therefore, the setting position of the pressurized air inlet (13), transportation The conditions such as the inner diameter of the tube (14) must be appropriately selected depending on the material used and the purpose of the spun yarn.

〔Example〕

The present invention will be specifically described below with reference to Examples.Example 1 The method of the present invention was carried out using the apparatus shown in FIG. 1 under the following conditions.

1. Roving (1) Niacrylic fiber 5dX102m.

100%, l15f/m 2 roving (2): 60A B wool 100%% 1597m 5 Draft magnification: 20x4, number of twists: 305 T/M S spindle rotation speed: 12,50Or, p, m & transport pipe : Inner diameter 12mb Length 150151% Inlet diameter 1.5L Air pressure used: (L 2 Q/cm"& Spinning count:
The yarn obtained at C (meter count) of 19.5 is a loop,
The thickness change due to the slab shape is a long pitch, and the number is 1m.
However, due to the diffusion effect of wool and the draft effect during transportation, the outer periphery of the acrylic fiber bundle was covered with wool, giving it a shape similar to that of a two-layer yarn in good condition. If it is set to 0, only a simple spun heathered yarn will be obtained, and during processing, winding on the front roller will occur four times during one hour of operation at 30 spindles.

Example 2 The method of the present invention was carried out using the apparatus shown in FIG. 1 under the following conditions.

1. Roving (1) Niacrylic fiber 3cLXtQ2m.

100%, α5t 7m λ roving (2): 60'a merino wool 100cm,
[1L5f/m 5 draft magnification: 20 times 4 twists Number: 50577M 1 spindle rotation speed: 12,50 Or, p, m Melon transport pipe: inner diameter j2wa, length 150m, inlet diameter 1.5 mn 1 air pressure used: 118 K9 / an”a spinning count:
19.4 yt, c (meter count) The obtained yarn has a wide range of thickness, and since the wool is draft-opened in the transport pipe, it appears to be wool-rich. It is a spun yarn that has the characteristics of a soft texture and excellent bulkiness, making it an interesting spun yarn as a material for sweaters and handicraft yarns.

Example 3 The method of the present invention was carried out using the apparatus shown in FIG. 1 under the following conditions.
0%, [L5 f/m 5 draft magnification = 20x4, number of twists: 315 T/M i7M miss spindle: 11. Q OOr, p, m & transport pipe: inner diameter 15+o+, length 150m, inlet diameter 1.5
WIR 1 Air pressure used: 1.5 Kg/cm2a Spinning count = 2
The spun yarn obtained from α8M and C (meter count) is a spun yarn that has a wide range of thickness variations and has an excellent long-pile hair effect, making it an interesting spun yarn as a material for sweaters and handicraft yarns. [Effects of the Invention] As mentioned above, by the method of the present invention, rL can easily process a wide variety of spun yarns by selecting the total pressurizing pressure by simply incorporating an extremely simple device into the existing spinning machine. Furthermore, by using two composite materials and selecting one material at 9 atmospheres, it is possible to easily change the pressure.

Furthermore, by introducing a double roving method that simultaneously supplies two rovings to one draft part, it has excellent features such as making it possible to manufacture designed spun yarn without reducing productivity. be.

[Brief explanation of drawings]

Figure 1 is a process schematic diagram showing representative example 1 of the present invention, Figure 2 is a model diagram of the yarn obtained in Example 20, and Figure 3 is a method in which pressurized air is not used in the method of the present invention. Fig. 4 is a model diagram of the yarn carried out in Fig. 4, and Fig. 4 is a schematic enlarged view of the main part of the process to explain the present invention in detail. (1)...first roving, (2), (9)...
Draft part, (3)...17th lease, (4), (12)...Front roller, (5)
・−・Spindle, (6)・・Bobbin, (7)・
...Ring rail, (8)...)5 9-1 (1
0)...2nd roving, (11)...27th lease, (
13)...9 air inlet, (14)...transport pipe, (1
5)... Twisting and twisting retroactive area, (a)... Transport pipe entrance, (
1))...Transport pipe outlet, (16)...Front bottom roller, (17)...
・Front bottom roller, (a)...Core forming twisted fiber bundle, (b)...supply fiber bundle, (c)...slab part, (d)...loop part

Claims (1)

[Claims] In a twisting type spinning machine, short fiber bundles spun from another draft section are supplied by pressurized air to the twisting and twisting area where the short fiber bundles spun from the draft section are twisted and formed into yarn. A method for producing a designed spun yarn, which is characterized by combining both fiber bundles and twisting them to form a yarn.