JPS5847483B2 - Manufacturing method of slub yarn - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing slub yarn using a self-twisting machine.

Many methods for manufacturing slub yarns have been known, and it is well known that there are many types of slub yarns that can be manufactured.

Among them, Japanese Patent Publication No. 4117020 describes a method for producing slub yarn using long fiber bundles and short fiber bundles.

In this method, long fiber bundles and short fiber bundles are drafted in the same drafting section, and the long fiber bundles are uniformly drafted and used as the basic yarn.The short fiber bundles are torn off to form slabs, which are attached to the basic yarn and twisted. This is a method for manufacturing slub yarn.

However, in this method, the short fiber bundles that form the slab are twisted and wrapped around the long fiber bundles of the basic yarn, and the attachment of the slab to the basic yarn is unstable, making it easy for the slab to shift from the basic yarn, making it difficult to weave and weave. Sometimes the threads fall off, or the slabs protrude from the basic threads, causing them to get caught in the needles during knitting. It has become.

For this reason, once slub yarn is spun using a spinning machine, it is combined with regular spun yarn or filament and twisted using a twisting machine to form a slub, or it is covered using a covering machine, etc. to create a slub. A method is used in which the material is wrapped and processed without any problems in weaving or weaving.

However, these methods require multiple steps after spinning, including winding, piling yarn, and winding of twisted yarn, and even in the case of covering, a covering bobbin must be prepared, and Perform covering operation f. However, there is a problem in that the operation is extremely complicated.

The present invention solves the above problems and provides a method for manufacturing slub yarns in S-twist, Z-twist, and alternately twisted slub yarns by extremely simply and reliably attaching slubs to base yarns.

That is, the manufacturing method of the present invention is as follows: (1) When manufacturing a self-twisting yarn using a self-twisting machine, at least one long fiber bundle W1 composed of long fibers is produced.
and at least one short fiber bundle S1 composed of short fibers significantly shorter than the long fibers of the long fiber bundle are supplied close to the draft section of the self-twisting machine, and the long fibers are arranged at intervals. A certain long fiber bundle W2 and a short fiber bundle S2 composed of short fibers significantly shorter than the long fibers of the long fiber bundle are supplied in close proximity, and the long fiber bundle W1 and the long fiber bundle W2 are supplied in the draft section. is uniformly drafted, the short fiber bundle S1 and the short fiber bundle S2 are arbitrarily cut into bows to form a slab, and then the long fiber bundle W1 and the long fiber bundle W2 are subjected to false twisting with alternating S twist and Z twist. At the same time, a slab of the short fiber bundle S1 is wrapped around the long fiber bundle W1, a slab of the short fiber bundle S2 is wrapped around the long fiber bundle W2, and then the long fiber bundle W1 and the long fiber bundle W2 are alternately wound. A method for producing slub yarn using a self-twisting machine, characterized in that the slub is twisted by self-twisting.

(2) At least one long fiber bundle W1 composed of long fibers and a short fiber bundle S1 composed of short fibers significantly shorter than the long fibers of the long fiber bundle are brought close to each other, and further spaced at an appropriate distance. The long fiber bundle W2 is supplied to the draft section, where the long fiber bundle W1 and the long fiber bundle W2 are uniformly drafted, the short fiber bundle S1 is arbitrarily torn into slabs, and the long fiber bundle W1 and the long fiber bundle W2 are uniformly drafted. S twist, Z twist to fiber bundle W2
At the same time as alternating false twisting, a slab of the short fiber bundle S1 is wrapped around the long fiber bundle W1.
A method for producing a slub yarn, characterized in that the slub is twisted by alternate self-twisting of the long fiber bundle W2 and the long fiber bundle W2.

(3) In (2), at least one long fiber bundle W1 made up of long fibers and a short fiber bundle S1 made up of short fibers significantly shorter than the long fibers of the long fiber bundle are assembled using a self-twisting machine. Supplied to the draft section, the long fiber bundle W1
is drafted uniformly, the short fiber bundle S1 is arbitrarily torn to form a slab, and then the long fiber bundle W1 is subjected to alternate false twists of S twist and 2 twists, and the slab is arbitrarily wound into S twist and Z twist. At the same time, the yarn F is supplied to the front roller between the cradle and the front roller at an appropriate interval from the long fiber bundle, and the yarn F is alternately twisted, and then the long fiber bundle W, This is a method for manufacturing slub yarn using a self-twisting machine, characterized in that the slubs are twisted by forming alternating self-twisting of the slubs and yarns F.

Next, the present invention will be specifically explained with reference to the drawings.

FIG. 1 shows a state in which slabs 81' are wound around the base yarn W1 alternately in an S twist and a Z twist, and is a model diagram for explaining the yarn manufactured by the method of the present invention in FIG.

Fig. 2 shows an example of a yarn produced by the method of the present invention, in which the slub yarn shown in Fig. 1 is twisted alternately into S-twist and Z-twist to form a self-twisting yarn. .

FIG. 3 shows the slub yarn shown in FIG. 1 twisted alternately with yarns such as filaments.

FIG. 4 is an explanatory diagram of an apparatus for carrying out the method of the present invention.

The draft section 1 is composed of a back roller B, a cradle C, and a front roller 2, and is composed of a long fiber bundle W1 composed of long fibers and short fibers that are significantly shorter than the long fibers of the long fiber bundle. The fiber bundle S1 is supplied in close proximity to each other, and the long fiber bundle W2, which is made up of long fibers at intervals, and the short fiber bundle S2, which is made up of short fibers that are significantly shorter than the long fibers of the long fiber bundle, are placed in close proximity to each other. The long fiber bundles W1 and W2 are uniformly drafted by the front roller 2 rotating at high speed.

On the other hand, short fiber bundles S1 and S2 are torn to form slabs.

After passing through the front roller 2, the long fiber bundles W1 and W2 are false-twisted alternately in an S twist and a Z twist by a rubbing roller 3.

At this time, the slabs 81' and 82' are arbitrarily wound around the long fiber bundles W1 and W2 in an S twist and a Z twist, respectively.

After passing through the rubbing roller 3, the long fiber bundle W1 forms alternate self-twists of S twist and Z twist at the guide 4, and becomes a double yarn Yw, which is wound around the cheese 5.

At this time, the slabs 81' and 82' are twisted into the double yarn Yw.

FIG. 5 shows a plan view of FIG. 4.

FIG. 6 shows the case where a slub yarn is manufactured by supplying a long fiber bundle W1 to one side and supplying a long fiber bundle W2 and short fiber bundles S1 and 82 together to the other side.

FIG. 7 shows a case where a slub yarn is manufactured by supplying a long fiber bundle W1 to one side and supplying a long fiber bundle W2 and a short fiber bundle S1 to the other side.

Figure 8 shows a case in which a long fiber bundle W and a short fiber bundle S are supplied together, and the yarn F is supplied to the Freon l roller between the cradle and the front roller to produce a slub yarn. be.

In addition, in the method of the present invention, the uses of the slub yarn can be expanded by further twisting the yarn.

Note that the technical scope of the present invention is not limited to the embodiments described above and below.

Example 1 Spinning was carried out using the apparatus shown in FIG. 4 under the following conditions.

The long fiber bundle that will become the basic yarn is worsted roving, average fiber length 120, weight 0.37 f/m, the short fiber bundle that will become the slab is woolen roving, average fiber length approximately 30 mm, weight 0.06 g/m.
The long fiber bundle and the short fiber bundle were combined together after the bank roller under the following conditions: a draft rate of 18.5 times, a spinning speed of 220 m/min, a traverse width of the rubbing roller of 76.2 mm, and a number of rubbings of 220 times/min or more. It was supplied as shown in Figure 4.

The obtained slough yarn had a thread count of 1,000 Nm2/43, and the slub was sandwiched between double yarns, as shown in FIG.

When this slub yarn was knitted, it could be knitted without any problems and a novel slub knitted fabric never seen before was obtained.

Example 2 It was spun under the conditions of Example 10 as shown in FIG.

The obtained yarn had a count of Nm2/46 and had fewer slabs than the yarn of Example 1.

When this yarn was knitted, it could be knitted without any problems, and a new slub yarn knitted fabric with fewer slubs than the knitted fabric knitted in Example 1 was obtained.

Example 3 Under the conditions of Example 10, nylon filaments 150d/36f were supplied from behind the front roller in a state as shown in FIG.

The obtained slub yarn had a composite count of 1/26, and this slub yarn had a high tenacity of 850 f, and could be knitted without any problems, resulting in a knitted fabric made of a slub yarn, which was unprecedented.

[Brief explanation of the drawing]

Fig. 1 is a model diagram showing a state in which a slab S1 is wound around the basic yarn W in an S twist and a Z twist alternately, and Fig. 2 shows an example of the yarn of the present invention. The thread is S twisted,
It shows a state in which Z-twists are twisted together alternately to form a self-twisting yarn. FIG. 3 shows the slub yarn shown in FIG. 1 twisted alternately with yarns such as filaments. FIG. 4 is an explanatory diagram of an apparatus for carrying out the method of the present invention, and FIG. 5 is a plan view of FIG. FIG. 8 is an explanatory diagram of a method for producing slough yarn by supplying short fiber bundles S and 82 together. FIG. 7 shows that the long fiber bundle W1 is supplied to one side and the long fiber bundle W1 is supplied to the other side.
FIG. 2 is an explanatory diagram of a method for manufacturing slub yarn by supplying a short fiber bundle S1 and short fiber bundle S1. FIG. 8 is an explanatory view of the case where a long fiber bundle W1 and a short fiber bundle S1 are supplied together and a filament F is supplied to the other from behind the front roller to produce a slub yarn. 1: Draft part, B: Bano crawler, 2: Front roller, C: Cradle, 3: Rubbing roller, 4:
Guide, 5: Cheese, S1, S2: Short fiber bundle, S1',
82': Slab, W,, W2: Long fiber bundle, F: Yarn, Y
w: Double thread.

Claims (1)

[Scope of Claims] 1 At least one long fiber bundle W composed of long fibers
1 and at least one short fiber bundle S1 composed of short fibers significantly shorter than the long fibers of the long fiber bundle, and a long fiber bundle W2 that is separated from the long fibers at an appropriate interval. and a short fiber bundle S2 composed of short fibers that are significantly shorter than the long fibers of the long fiber bundle are brought close to each other and supplied to a drafting section, and the long fiber bundle W1 and the long fiber bundle W2 are uniformly drafted in the drafting section. The short fiber bundle S1 and the short fiber bundle S2 are arbitrarily torn into slabs, and the long fiber bundle W and the long fiber bundle W2 are subjected to alternating S twist and Z twist, and at the same time, the long fiber bundle W1 is A slab of the fiber bundle S1 is wound around the long fiber bundle W2, and a short fiber bundle s2 is wrapped around the long fiber bundle W2.
1. A method for producing a slub yarn, which comprises: winding a slub, and then twisting the slub by alternately self-twisting a long fiber bundle W1 and a long fiber bundle W2. 2 At least l long fiber bundles W composed of long fibers
1 and a short fiber bundle S1 composed of short fibers that are significantly shorter than the long fibers of the long fiber bundle are brought close to each other, and the long fiber bundle W2 is further supplied to the draft section with an appropriate interval between them. The long fiber bundle W1 and the long fiber bundle W2 are uniformly drafted, the short fiber bundle S1 is arbitrarily torn to form a slab, and the long fiber bundle W1 and the long fiber bundle W2 are S-twisted.
At the same time as the false twisting of the Z-twist is applied, a slab of the short fiber bundle s1 is wrapped around the long fiber bundle W1, and then the long fiber bundle W1 is wrapped around the slab of the short fiber bundle s1.
1. A method for producing a slub yarn, which comprises twisting a slub by alternately self-twisting a long fiber bundle W2 and a long fiber bundle W2. 3 At least one long fiber bundle W composed of long fibers
1 and a short fiber bundle S1 composed of short fibers significantly shorter than the long fibers of the long fiber bundle are supplied to the draft section, the long fiber bundle W1 is uniformly drafted, and the short fiber bundle S1 is arbitrarily torn off. S-twist the long fiber bundle W1 into a slab,
The slab is arbitrarily wrapped around the S-twist and the Z-twist by false twisting the Z-twist alternately. After supplying the yarn F and applying false twisting alternately, the long fiber bundle W1 and the yarn F perform alternate self-twisting,
A method for producing slub yarn, which comprises twisting the slub.