JPS58208437A - High speed weaving due to water jet loom - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to prevention of warp fuzz and shedding delay due to single filament breakage, which occur when lament yarn is weaved at high speed in a water jet loom.

Water Shet Room has a track record of several years since it was put into practical use, and has been used to manufacture medium-sized synthetic filament yarns (, +,
Its spread is remarkable. Special.

In recent years, as water sheds have become more versatile, there has been a remarkable increase in speed, and from the perspective of mechanical durability alone, the loom speed has reached 600 r.m. p. m.
More than 900r. p. m. Completed one that can withstand C 2.
Weaving is difficult under the condition that it is suppressed to 0 to 2.59/d or less. That is, the conventional rotation speed of 550 to 55
0 r. p. m. This is because a problem that could not have been predicted would arise, and that problem is that 600 r. p. m
．． When weaving at the above-mentioned high-speed rotation, sewing fuzz occurs due to single filament thread twisting. One or several of the plurality of single filaments that make up the warp yarns are delayed in opening, resulting in failure to open, and as a result, the flight of the warp yarns is hindered, resulting in poor weft insertion.

The present invention is based on an idea completely different from conventional ones.

The object of the present invention is to provide a fiber manufacturing method that solves the above-mentioned problems in high-speed weaving.

That is, in the present invention, untwisted and unsizing polyamide yarn Mayachi filament yarn is used as the warp yarn by water dienotrome.
When weaving at a rotation speed of 0 Or, O, m, or more, the warp single yarn fineness is 2.5 denier or more and the warp tension is 2.5 to 4.
．． This is a high-speed weaving method using a water jet M-me, which is characterized by weaving in the range of Q9/d.

In order to understand the weaving situation when weaving with a water jet loom using non-twisted and non-sizing polyamide (nylon 6) multifilament yarn as the warp,
Warp composition single yarn fineness (Denny-TV).

Warp tension (Q, /d) H and loom rotation speed (r, p, n,
), weaving tests were carried out with various changes, and the relationship between these conditions and warp fuzz generation and warp opening delay after 1 million times of insertion was investigated, and the results shown in Table 1 were obtained. Of course, the weavability is better when there is less warp fuzz and shedding delay.

Table 1 (7 balls) (Go to -1, × indicates "opening delay" per 1 million weft inserts, (○).

(Δ), tX) are the same [transverse fuzz generation due to single cut n]
σ) Each indicates the frequency of occurrence. ○, (○) indicates "Tai-ga-seiho" when the frequency of occurrence is 4 or more times.

△, (, to) indicates that the frequency of occurrence is 51E1 or more and 15 or less.

x, (X)i- rl if the frequency of occurrence is 16 or more! !
! Showing ``Jousei Fuai''.

As is clear from Table 1, regardless of the single yarn fineness of the structure, the lower the warp tension, the more noticeable the opening delay.

Furthermore, even if the warp tension is the same, the greater the number of filaments, the greater the opening delay. Furthermore, when the constituent single yarn fineness is less than 2.5 denier, the rotation speed of the il machine is 60 Or, p
, rQ0 or higher, the shedding delay increases on the side where the warp tension is low, and warp fluffing due to single yarn breakage increases on the side where the warp tension is high, making weaving difficult in both cases. Therefore.

For these reasons, it is possible to prevent the opening delay by increasing the warp tension, but the contact friction between the warp and the heddles, reeds, etc. increases, which increases the occurrence of warp fuzz due to single thread breakage. I understand that.

The present invention was completed based on the above findings.

When weaving at high speed in a water jet loom using untwisted and unsizing polyamide multifilament yarn as the warp, use yarn with a single yarn fineness of 2.5 denier or more as the warp, and set the tension of the warp to 2. Set it in the range of .5 to 4,09/d! 1IllIll&, even if the loom rotation speed is 600 r, p, m or more.

Good weaving can be carried out for the first time with no warp shedding or fuzzing.

In the method of the present invention, if the single yarn fineness of the warp is less than 2.5 denier, good weavability cannot be expected no matter how the warp tension is adjusted; In the case of li, even if the degree of single Am is 2°5 deni-1 or more, a delay in shedding occurs, and if it is more than 4,09/d, fuzz occurs frequently due to thread breakage, resulting in poor weaving properties.

Note that the interlacing treatment that has conventionally been conventionally performed on warp yarns such as untwisted and unsealed polyamide synthetic multifilament yarns is not directly related to the method of the present invention, but from the point of view of increasing the effect. This is a preferred treatment.

By carrying out the method of the present invention as described above, C9 can be produced for the first time with no twist and no glue, polyamide multifilament yarn.
By using it as a warp, it is possible to stably perform high-speed weaving of 60 Or, p, m or more using a water jet loom, and weaving of 700 r, p, m.

However, the generation of warp fuzz due to single thread cutting and the opening delay are small, and good weaving performance can be obtained.Patent applicant Unitika Co., Ltd.

Claims (1)

[Claims] (1) Threading the water jet loom using non-twisted and non-sizing polyamide multifilament yarn as the warp 61]O
When # is completed at a rotation speed of r, p, m, or more, the warp single yarn play is 2.5 denier or more, and the warp tension is 2.5 to 4. O
A high-speed weaving method using a water jet loom, which is characterized by weaving at an a range of q/d.