JPH03294528A - Spinning method for spun yarn reduced in fluff - Google Patents

Abstract

PURPOSE:To inexpensively and efficiently obtain a spun yarn remarkably reduced in fluff without causing trouble by bringing the spun yarn into contact with the face arranged in the vicinity of front roller between front roller of fine spinning frame and snail wire having large coefficient of friction. CONSTITUTION:When a spun yarn is spun by a fine spinning frame, roving 1 is passed through a back roller 2, second roller 3 and front roller 4 and sheet face 6 having large coefficient of friction is arranged in the vicinity of front nip point 5 in the neighbor of front roller between front roller 4 and snail wire 7 and yarn 1' fed from the front nip point 5 is twisted by rotation of traveller 8 and simultaneously brought into contact with sheet face 6 having large coefficient of friction and fiber projected from the yarn body is twisted into the yarn body to reduce fluff and then yarn is wound on a bobbin by the traveller 8 to provide the aimed tube yarn 9.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a method for producing spun yarn with little fuzz.

[Conventional technology]

Conventional methods for reducing fluff include first spinning yarn spun using a normal method and running it through a flame using gas, electricity, etc. in a post-process to remove the fibers protruding from the yarn, that is, fluff. One example is grilled hair.

There is also a method to reduce the generation of fluff during spinning of spun yarn.As a negative method, the yarn balloon under the snail wire is made smaller and the separator (other adjacent tubes) There are methods to prevent the thread from coming into contact with the separator (separating plate from the system), or to change the shape of the traveler to be rounded.

Furthermore, as an active method to reduce the generation of fluff during spinning of spun yarn, vortex flow caused by air injection is utilized.
There is a method of entwining the fluff with the thread body.

[Problem to be solved by the invention]

However, in the case of fluff burning, which is carried out as a post-process, equipment for burning the fluff is required, which not only increases costs, but also usually causes the cotton to discolor and change its dyeability. There were problems such as it was difficult to dye compared to yarn that was not burnt.

In addition, a passive method for reducing the generation of fluff during spinning of spun yarn is to reduce the size of the balloon.
It was necessary to increase the spinning tension, which resulted in a problem of increased yarn breakage.

Furthermore, although a certain effect was obtained by changing the shape of the traveler to a rounded one, no outstanding effect could be obtained.

Furthermore, as an active method for reducing fluff during spinning of yarn, the method of entangling the fluff with the basic body using a vortex flow caused by air jet requires large-scale equipment and has extremely poor workability. There were operational problems.

The present invention solves the above problems, is easy to work with,
Moreover, it is an object of the present invention to propose a method that can sufficiently reduce fluff at a high rate and at low cost.

[Means to solve the problem]

In order to achieve such an object, the present invention has been developed to bring the spun yarn into contact with a surface with a large friction coefficient arranged near the front roller between the front roller and the snail wire when spinning the spun yarn with a spinning frame. This is a method for spinning a spun yarn with less fuzz, which is characterized by spinning.

[Function] In the present invention, when spinning yarn with a spinning machine,
Since the spun yarn is spun in contact with a surface with a large friction coefficient placed near the front roller between the front roller and the snail wire, the yarn leaving the front roller is heated by the rotation of the traveler. At the same time, since the fibers are brought into contact with a surface having a large coefficient of friction, the fibers protruding from the base body are twisted into the base body, and fluff is significantly reduced.

〔Example〕

Next, the manufacturing method of the present invention will be explained in detail according to an illustrated embodiment in which the manufacturing method is applied to a ring spinning machine.

In FIG. 1, l is a roving, and the roving 1 passes through a back roller 2, a second roller 3, and a front roller 4, is drafted and spun to a predetermined thickness, passes through a snail wire 7, and is then spun into a traveler. The thread is wound around the bobbin at step 8, and the thread 9
becomes. At this time, a sheet surface 6 having a large friction coefficient is arranged near the front roller 4 between the front roller 4 and the snail wire 7. It is desirable that the sheet surface 6 having a large coefficient of friction is arranged particularly near the front nip point 5 between the front rollers 4. The material of the sheet surface 6 having a large coefficient of friction is preferably rubber, preferably the same rubber as the apron used for the second roller 3.

It is desirable that the sheet surface 6, which has a large coefficient of friction, has a width sufficient to be able to come into contact with the yarn 1' even if the yarn path fluctuates, and is further coated with an elastic material such as rubber in the yarn direction so that it is always in contact with the yarn 1'. It is desirable that it is biased by elastic deformation, spring force, or the like. In FIG. 2, the sheet surface 6 having a large coefficient of friction is made of a rubber sheet having a substantially elliptical cross section, and is always biased in the thread direction due to elastic deformation of the rubber.

Yarn 1' leaving front nip point 5 between front rollers 4
Since the fibers are heated by the rotation of the traveler 8 and brought into contact with the sheet surface 6 having a large friction coefficient, the fibers protruding from the base body are twisted into the base body, thereby significantly reducing fuzz. The degree of contact between the surface 6 having a large coefficient of friction and the yarn 1' must be such a weak force that the twist caused by the rotation of the twister 8 can reach the front nip point 5. Surface 6 with a large friction coefficient and thread 1
If the degree of contact with ' is too large, the twist will not reach the front nip point 5, and yarn breakage will likely occur near this point.

Table 1 shows the fuzz index values of the spun yarn spun by the method of the present invention and the spun yarn spun by the conventional method.

Table 1 Measuring device Fuzz measuring device (measures changes in light intensity using a photoelectric element) Fuzz index Book/Loom As is clear from Table 1, the yarn spun by the method of the present invention has considerably less fluff than the yarn spun by the conventional method. It was found that this method is particularly effective for yarns with a lot of fuzz, such as linen.

[Effects of the Invention] As is clear from the above description, according to the present invention, it is possible to significantly reduce fluff with ease, cost, and high efficiency, and it is possible to reduce fluff such as fluff like hemp. It is particularly effective for many kinds of spun yarns, and there is no trouble caused by removing fluff in the post-process, so the effect is extremely large.

[Brief explanation of drawings]

FIG. 1 is a schematic explanatory diagram showing an example of the method of the present invention, and FIG. 2 is an enlarged explanatory diagram of the main part thereof. l: Roving l': Yarn 2: Back roller 3: Second roller 4: Front roller 5: Front nip 6: Surface with large friction coefficient Varnish nail wire 8 Ni labeler: Tube yarn

Claims (1)

[Claims] When spinning yarn with a spinning machine, the yarn is spun by contacting a surface with a large friction coefficient arranged near the front roller between a front roller and a snail wire. How to spin less spun yarn.