JPS584831A - Production of fancy conjugate yarn - Google Patents

Abstract

PURPOSE:Short fiber bundles which are fed from a plurality of draft units driven in variable speeds are united, passed through in order two hollow spindles rotating in reverse directions to each others to effect covering, thus producing, in high producitivity, fancy conjugate yarn with good variety. CONSTITUTION:Pack rollers 2, 3 at a plurality of draft units 1, 1' are driven in variable speeds or intermittently to send out the bundles of short fiber 4, 5 alternately or as piling them from the top roller 6 and the bundles 4, 5 are passed through the first hollow spindle 7. At this time, the bundles 4, 5 are covered with the yarn 9 unwound from the bobbin 6 set on the spindle 7 and they are united. Then, the yarn is covered in the reverse direction with the yarn 11 from the bobbin 13 on the second hollow spindle 12. Thus, the fiber bundles are covered with the first and second covering yarns to stabilize the yarn form.

Description

[Detailed description of the invention] The present invention is directed to a method for producing variable composite yarn.

Conventionally, as a manufacturing method of composite yarn, a method of covering fiber bundle #C1w spun yarn or filament yarn was published in Japanese Patent Publication No. 1973-
It is known for Cape No. 38014. In addition, as methods for producing yarns of variable thickness and variable hue by so-called spinning, intermittent drafting methods using a clutch method, a single differential leprosy wheel method, etc. are generally known.

However, although both methods of producing covering yarn can demonstrate their characteristics in terms of high productivity, there are problems with the carbonization and diversity of the yarn obtained; However, from the viewpoint of productivity, it was lower than conventional general spinning methods and was extremely unsatisfactory.

The present invention solves the problems of the conventional method and provides a method for producing 1L"9 compound insects with excellent diversity with high productivity. The gist of the invention is as follows. At least one [multiple short fiber bundles sent out from a plurality of draft units that are driven in variable speed or intermittently are combined, passed through a 1E111@hollow spindle from the front four-tooth, and passed through a 1E111@hollow spindle into the 1st g1 rotation hollow thread/dol. It is covered with the yarn unwound from the attached bobbin, and then passed through the 21st rotating hollow spindle that rotates in the opposite direction #CI!1 to the 1st rotating hollow spindle, and is attached to the scissors 2nd rotating hollow spindle. The present invention is directed to a method for manufacturing a variable composite yarn, characterized in that the yarn unwound from a bobbin is covered in a direction opposite to the first covering direction.

The following is a detailed explanation of the present invention according to the drawings.
The figure is a partially longitudinal side view showing an example of the scissors used in carrying out the present invention. The rollers (2), U) are controlled by a separate W & girder control device (not shown).
By variable speed or intermittent driving, the short fiber bundle 4.
The fiber bundles 4.5 are fed out from the top roller 6 while alternating or overlapping, and the fiber bundles 4.5 are guided to the 5 to pass through the 111th rotary hollow spindle 7. At this time, the short fiber bundle 4.5 is covered with the yarn 9 unwound by the bobbin attached to the first rotating hollow spindle 7#C. Due to this action, the short fiber bundles 4.5 are integrated.

Normally, when twisting in a spinning machine involves gibberish to form yarn, extreme unevenness in thickness will cause the yarn to break immediately, making it impossible to form yarn.
Even when a plurality of short fiber bundles can be spliced alternately, the conjugation property of the short fiber bundle joints is weak and it is easy to cause yarn breakage. However, according to the method of the present invention, the kabalinda f ind11) can be sufficiently flowed.
If it is close to -te □-, yarn breakage will be significantly reduced, and therefore it is possible to obtain a composite yarn with changes that were previously unimaginable.

The yarn after the Is1 cover cylinder is attached to the second rotating hollow spindle 1
Yarn 11 unwound by bobbin 11s attached to bobbin 2
Covering is performed in the opposite direction to the first covering.

Due to this action, the fiber bundle becomes sandwiched between the first covering yarn and the second covering yarn A, and the yarn form becomes stable.

Figures 2 to 4 are examples of 4kII composite yarns obtained by the manufacturing apparatus shown in Figure 1, and Figure 2 shows the unique fiber bundles A1B, which are alternately sent out by the top four-layer, and the first covering group. C and a second covering thread, using a space-dyed thread that is thicker than the second covering thread for the first covering thread. It is.

In addition, Figure S shows the supply fiber bundle (a slab-like one with uneven thickness, and Figure 4 shows the first covering yarn C and second covering yarn DK, which uses fiber bundles A and B with higher shrinkage. , After producing the composite yarn, the covering yarn is shrunk by steaming.

The short fiber bundle is sandwiched between the covering yarns C and D,
A loop is formed, and the design effect is further emphasized. Also, since the loop part is sandwiched with the covering thread C%D,
The shape is stable without shifting.

As described above, according to the method of the present invention, it is possible to obtain composite yarns with various variations, which could not be obtained by conventional methods, with high efficiency, rather than with low productivity as in the case of designed twisted yarns.

Example acrylic tape #5 (1100-4 t/yn sliver) was drafted 15 times as much with a normal spinning machine draft unit, and a uniquely unique 54100% (
A roving of L 5 t/wI was added to a slab-like cm and sent out from a top roller.

The acrylic dyed yarn of
An unprecedented composite yarn with no real twist in the fiber bundle portion was obtained.

[Brief explanation of drawings]

Claims (1)

[Claims] Combining a plurality of short fiber bundles sent out from a plurality of draft units, at least one of which is driven at variable speed or intermittently,
The thread is passed from the front roller to the first rotating hollow spindle and covered by the yarn unwound from the bobbin attached to the 11i hollow spindle, and then the 21i1 spinning spindle rotates in the opposite direction to the first rotating hollow spindle. A method for producing a composite yarn, which is characterized by passing the yarn through a hollow spindle and covering the yarn unwound from a bobbin attached to a second rotary hollow spindle in a direction opposite to the first covering direction.