JPH03227419A - Fancy yarn and processing nozzle therefor - Google Patents

Abstract

PURPOSE:To obtain bulky yarn of fancy yarn having excellent interior properties by opening and interlacing yarn of strand group through loops by a pressure fluid to form a pair of parallel yarns and randomly forming bridges between the yarns in a ladder shape while making void parts. CONSTITUTION:Yarn 18 of strand group is inserted into a yarn guide hole 8 of a nozzle 3 which is equipped with a cylindrical barrel part 4 having a gas chamber hole 5 at the center and a gas introducing hole 6 communicated with the gas chamber hole 5 at the side and is provided with an inner 10 engaged with the gas chamber hole 5 and bored with the yarn guide hole 8 at the center, high-pressure air is injected from the gas introducing hole 6 to the gas chamber hole, the strand 18 is divided into two parts, opened and interlaced through loops by air diffusing from a delivery hole 12, bent by a baffle plate 15 and released from an opening part 16 to give the objective fancy yarn 1 in which a pair of parallel yarns 1' are formed and bridges are randomly made between the yarns in a ladder state while setting void parts 21.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a fashionable bulky yarn made of bulky glass fibers, ie, fancy yarn, used in yarn fluid processing, and a nozzle for processing the same.

(Prior art) Japanese Patent Publication No. 35-1673 describes a system in which compressed gas is ejected from a restricted space to create a disturbed area, and yarn is fed into this flow to create loops and entanglements. A fluid chamber is constituted by a nozzle for ejecting a flow of air, etc., a fluid introduction pipe, and a thread guide pipe, and the nozzle has a streamlined shape that gradually opens outward, and if necessary, the streamlined shape A jet for manufacturing bulky yarn in which a baffle plate is provided in front of the nozzle is disclosed, and as an example of an improved basic structure, Japanese Patent Laid-Open No. 59-9236 discloses a jet with a hole in the center. a body having a gas introduction hole in communication with the center hole in a side portion thereof; a needle having a thread guide hole in the center fitted into the center hole of the body from the yarn entrance side of the body; It consists of a venturi that fits into the center hole of the body from the yarn exit side, and an annular chamber is formed by the inner circumferential surface of the body and the outer circumferential surface of the needle, and an annular chamber is formed by the external tapered surface of the needle tip and the internal tapered surface of the venturi. A yarn processing nozzle with a fluid path formed therein is disclosed in which the width of the annular fluid path is gradually expanded along the fluid traveling direction.

Furthermore, Japanese Patent Application Laid-Open No. 1-221538 discloses a string-like body obtained by defibrating a bundle of a large number of filaments, in which the string-like bodies are formed at spaced apart locations. A tangled portion is formed in which the filaments are intertwined, and the string-like body is separated into a plurality of sections by this entwined portion, and in each section, the string-like body is connected to a first group of filaments that are aligned in the longitudinal direction of the string-like body. , a second group of filaments that have been opened and expanded in a direction perpendicular to the longitudinal direction, and the filaments that belong to the first group of filaments are separated from each other in a certain section so that the total length of each filament constituting the string-like body is equal. In the section, a string-like body belonging to the second group filament is disclosed.

(Problems to be Solved by the Invention) Among the above-mentioned prior arts, those disclosed in Japanese Patent Publication No. 35-1673 or Japanese Patent Application Laid-open No. 59-9236 form bulky loops in the yarn, but they are not advantageous. This method has the disadvantage that the formed loops tend to unravel when tension is applied to the yarn in the yarn axis direction, and is disclosed in Japanese Patent Application Laid-Open No. 1-221538.
The one disclosed in the publication is a bulky string-like body that does not stretch even when tension is applied and does not disintegrate during handling, but the present invention has rich fusiconability, which is different from the above-mentioned string-like body. It provides a new yarn.

(Means for Solving the Problems) The present invention has been made in view of the above-mentioned problems in the prior art.The present invention has been made in view of the above-mentioned problems in the prior art. A pair of parallel yarns that are intertwined with each other, a fancy yarn that is formed into a ladder shape by randomly extending a cavity between the yarns; The fibers are opened radially from the axis to provide a fancy yarn in which random annular portions are intertwined and integrally formed with the yarn, and furthermore, a gas chamber having a gas chamber hole in the center and communicating with the gas chamber hole on the side surface is provided. It has a cylindrical body with a hole, an inner that fits into the gas chamber hole and has a thread guide hole in the center, and an inner that fits into the gas chamber hole on the exit side of the thread guide hole and has an ejection hole. In a fancy yarn processing nozzle that includes a venturi and a baffle plate on the outlet side of the jet hole,
A nozzle for processing fancy yarn is provided, in which a slit portion is cut at the tip of the outlet side of the yarn guide hole, and the center of the jet hole and the center of the yarn guide hole are arranged to be different from each other.

(Example) Hereinafter, the present invention will be described in detail with reference to the drawings.

FIGS. 1A and 1B are perspective views showing fancy yarns processed using the nozzle of the present invention, FIG. 2 is a schematic perspective view explaining a part of the process, and FIG. FIG. 4 is a longitudinal cross-sectional view of the nozzle assembly and an enlarged perspective view of the slit portion.

A nozzle 3 for producing fancy yarns 1 and 2 using pressurized fluid has a gas chamber hole 5 in the cylinder on the side surface of a cylindrical body 4.
A gas introduction hole 6 is provided in communication with the body, a thread guide hole 8 is bored in the center, and a slit portion 9 is cut along the center line at the exit side tip of the thread guide hole. An integral inner 10, into which the lid part is screwed into a threaded part 7, is attached to the gas chamber hole 5.
The inner is screwed into a predetermined position by a stopper 11 which is screwed together with the inner into the threaded portion 7.

A venturi 13 is provided on the end surface of the body 4 located on the opposite side of the threaded part 7 to form a jet hole 12, and the center of the jet hole and the center line of the thread guide hole 8 are set at a distance of 0.3 to 0. 5- It is inserted into the cylinder of the body part 4 with a one degree shift, but it is fixed by aligning the screw hole drilled in the flange of the venturi 13 with the screw hole provided in the end face of the body part 4, and then tightening the set bolt 14. Further, a baffle plate 15 provided with an opening 816 is fixed to the body 4 on the outlet side of the jet hole 12.

The exit of the venturi 13 and the thread guiding hole 8, that is, the tip of the inner IO, is an eccentric annular path portion 1.
7, but the gap can be adjusted in any way by tightening the inner 10.

The gas introduction hole 6 is connected to, for example, a compressed air source with a hose (not shown), and when high-pressure air is injected, it becomes a nozzle 3 for producing the fancy yarn 1 or 2, and the strand 1
8 is inserted into the entrance of the yarn guide hole 8, and the fancy yarn is discharged from the opening 16 between the trunk 4 and the baffle plate 15 by the action of the high pressure air. On the population side, a roll 19 that supplies the strand 18
．． 20 and a single strand 18 is fed by rotating at the same speed with the roll, a ladder-like fancy yarn having a cavity 21 between the pair of yarns l' and 1' shown in FIG. 1, or by supplying a plurality of strands 18, for example two strands, and amplifying the rotational speed of one roll by 25%, or by amplifying the feed from a separate pair of supply rolls (not shown) by 25%, a pair of yarns 2.2' It is possible to form a fancy yarn 2 as shown in FIG. 1(B) in which random annular portions 22 are looped radially from the yarn axis.

Hereinafter, the operation of the nozzle 3 in the present invention will be explained.

When a single strand 18, which is held and transferred by supply rolls 19 and 20 disposed on the entrance side of the thread guide hole 8, is inserted into the thread guide hole 8 and high-pressure air is injected through the gas introduction hole 6, the air is converted into a gas. From the chamber hole 5, it passes through the path section 17, and the ejection hole 12
It protrudes and diffuses from the air, collides with the baffle plate 15, and is discharged from the opening 16. However, by arranging the inner 10 and the nozzle 12 so that the center line is different from the center line, a swirling flow is generated in the path 17. A part of the strand passes through the slit part 9 and causes clockwise and counterclockwise fluid vortices, and this fluid vortex divides the single strand 18 into two parts, with the upper one being ZYM and the other being SL@. The fibers are false-twisted and discharged from the outlet of the yarn guide hole 8, but the false-twist is combined with the false-twist of the reverse twist below the dividing point, and the false-twist is untwisted, and the untwisted fibers are entangled by the swirling high-pressure air. Then, in the path section 17, some of the fibers become entangled around the adjacent yarns 1' due to the left and right swirling flow, and the two yarns 1'' and 1' are intertwined. The fancy yarn 1 is provided with a trapezoidal hollow part 21, and is discharged from the spout hole 12 without obstruction @15.
It is bent and released from the opening 16. The strength of the swirling flow in the path portion 17 may be adjusted by tightening the inner 10.

Also, for example, if the rotational speed of one roll 19 is amplified by 25% compared to the other roll 20 and the two-feed strand 18 is fed with a speed difference, the yarn 2 is divided into two parts in the yarn guide hole 8. The fibers loosely wound around each of the yarns 2'' and 2'' are intertwined with the yarn, and along the yarns 2'' and 2' whose trunks are random annular portions 22 opened by air diffused from the jet holes 12, The fancy yarns 2 formed radially outward are bent by the baffle plate 15 and discharged from the opening 16.

The strand 18 in the yarn guide hole 8 moves smoothly due to the action of high pressure air flowing from the path section 17 to the jet hole 12.

In the nozzle 3, the inner diameter of the thread guide hole 8 is 3 mm, the outlet hole is 1.4 mm, the width of the slit B9 is 0.5 mm, and the depth is 0.7 mm, and the pressure is 2 to 5 atm. 3 using high pressure air
00 tex is 200m/min, 50 tex is 15
A production rate of 0 units/min can be ensured, the ladder-shaped fancy yarn 1 has extremely little elongation, and the fancy yarn 2 with the annular portion 22 has bulkiness and is rich in interior decoration.

If the strands 18 of Two Feed are combined with different materials, for example, one strand is made of aramid fiber and the other strand is made of glass fiber, or glass fiber and carbon fiber, the characteristics of both can be utilized, and its uses can be further expanded. It is something that spreads.

(Effects of the Invention) The fancy yarn formed using the nozzle of the present invention has a shape with little elongation and is suitable for interior decoration, and its use is cloth for interior decoration, and can be used as the weft of high-density cloth. When used, it spreads due to the annular portion, which has the effect of reducing the number of implants.

[Brief explanation of drawings]

FIGS. 1A and 1B are perspective views showing fancy yarns processed using the nozzle of the present invention, FIG. 2 is a schematic perspective view explaining a part of the process, and FIG. FIG. 4 is a longitudinal cross-sectional view of the nozzle assembly and an enlarged perspective view of the slit portion. 1.2... Fancy yarn 1゛, 2゛... Yarn 3... Nozzle 4... Body part
5. Gas chamber hole 6. Gas introduction hole 8. Thread guide hole

Claims (2)

[Claims] (1) The fibers of the strand group are opened and looped and intertwined using a pressure fluid to form a pair of almost parallel yarns, and the yarns are randomly stretched horizontally to form a hollow portion to form a ladder shape. Fancy yarn. (2) A fancy yarn characterized in that the pair of yarns are opened in the axial direction and radially from the axis so that random annular portions are intertwined and integrally formed with the yarns. (3) A cylindrical body with a gas chamber hole in the center and a gas introduction hole communicating with the gas chamber hole on the side, and a thread guide hole in the center that fits into the gas chamber hole. A fancy yarn processing nozzle comprising: an inner layer, a venturi fitted in the gas chamber hole on the outlet side of the yarn guide hole and having a blowout hole, and a baffle plate attached to the outlet side of the blowhole; 1. A nozzle for processing fancy yarn, characterized in that a slit portion is cut at the tip on the exit side, and the center of the ejection hole and the center of the yarn guide hole are arranged to be different from each other.