JPH0699857B2 - Weaving method for fluid jet type shuttleless loom - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention uses a spun yarn, a loop fluff yarn, a spun yarn-like fluff yarn, or the like as a warp, and a fluid jet type such as a water jet room or an air jet room. When weaving using a shuttleless loom (hereinafter referred to as "fluid jet loom"), the warp threads do not contact each other and rub against each other to make normal shedding motion difficult, and to prevent warp breakage. In addition, it relates to a method of weaving without any trouble.

(B) Conventional technology Conventionally, when weaving a spun yarn, a loop fluff yarn, a spun yarn-like fluff yarn, or the like using a fluid jet loom, the warp yarns come into contact with each other during running or during shedding motion. However, fluffs are tangled, loops are entangled, and poor opening is caused.
I was causing warp breakage. In order to prevent these problems, it has been practiced to use a yarn having short fluff or small loops, that is, a so-called fluff or loop-free yarn, or to sufficiently paste the warp.

(C) Problems to be solved by the invention However, when weaving a fluffy yarn or a yarn having a loop by using a fluid jet loom as a warp, it can be used as a warp by a conventional prevention method. Is limited to yarns with short fluff and yarns with small loops, which limits the freedom of yarn selection. Even if such short fluff yarns or small loop yarns are used, both ears and the vicinity thereof where there is a lot of contact scratches of the warp during running and opening movement, especially on those weft insertion sides. The fact is that it is not possible to sufficiently prevent frequent occurrence of entanglement of fluffs and loops or warp breakage in the ears and its vicinity. The present invention responds to this, and an object thereof is to solve the problem.

(D) Means for Solving the Problems The present invention provides a split reed for splitting warp yarns at least on the weft inserting side ear and on the vicinity thereof on the warp running path between the back crest roller and the heddle. A weaving method for a fluid jet loom, which is characterized by weaving.

The weaving method of the fluid jet loom according to the present invention (hereinafter referred to as the “weaving method of the present invention”) will be described in detail below.

That is, according to the present invention, a split reed for splitting the warp is provided on the warp running path between the back crest roller and the heddle, over at least the ear of the warp on the weft insertion side and its vicinity, and the split reed is installed in the split reed. The weaving method is characterized in that weaving is performed by using a fluid jet loom while ensuring a constant interval between the warps by passing the warps in and around the selvages.

In the above case, it is preferable that the divided reed be installed at a position closer to the backrest roller from the midpoint between the backrest roller and the heddle. In the case of the warp near the heddle, which is closer to the heddle from the midpoint, the vertical momentum is almost the same as the opening momentum, and the heddle keeps a constant interval between the warps, so that the warps contact each other. There is no abrasion, and there is almost no fluff, entanglement, or loop entanglement. However, in the case of the warp closer to the back crest roller than the midpoint, the vertical momentum due to the shedding motion is small, but the gradual increase in the vertical momentum makes the retention of the space between the warps unstable. It becomes possible to make things that rub against each other, and as a result, the glue that has been glued is peeled off, resulting in entanglement or loop entanglement due to fluff, or warp breakage caused by them.

Further, in the weaving method of the present invention, the split reed is provided "at least at the ear portion on the weft insertion side and in the vicinity thereof" because the spun yarn, the loop fluff yarn, or the spun yarn-like fluff yarn is the warp yarn. The fluff and loop entanglement when weaving with a fluid jet loom, or the occurrence of warp breakage due to these, occurs in more than 60% of the ears on the weft inserting side and the reverse weft inserting side and in the vicinity. Yes, and because more than 70% of the "occurrence at both ears and its vicinity" is at the ears on the weft insertion side and its vicinity, and in some cases, on the weft insertion side and its vicinity, This is because even if it does not occur in other places, it occurs. Therefore, the meaning of "at least" here means that the divided reeds are always provided on the weft-insertion-side ear and its vicinity, but are provided on the anti-weft-insertion ear and its vicinity as necessary. Is included.

(Operation) When weaving a spun yarn, a loop fluff yarn, a spun yarn-like fluff yarn, or the like as a warp using a fluid jet loom, the warp yarns rub against each other during running or during vertical movement for opening. , Therefore, the sizing that has been glued off and the like causes fluffs, which are entangled, loops are entangled, or warp breaks occur. . This is because when the warp thread is passed through a reed narrower than the beam width and is beaten, it is pulled more strongly than the warp threads at other locations. Further, this problem occurs more often in the weft insertion side ears and the warp yarns in the vicinity of the weft insertion side, which tend to be entangled by being displaced by the fluid before the end of fluid injection and being loosened.

In view of the above, the present invention provides a split reed for warp splitting at least on the weft inserting side ear and in the vicinity thereof, and in some cases on the reverse weft inserting side ear and its vicinity. , A certain space is secured between the warp yarns, thereby completely preventing contact scratches.

(F) Example 70 denier / 36 filaments made of nylon 6 and 70 denier / 24 filaments also made of nylon 6 using processed yarns having 5 to 5 loops of 0.5 to 2 mm per cm as warps. When weaving a plain weave in a water jet room using the drawn yarn of No. 1 as the weft yarn, 50 from the back crest roller to the heddle between the back crest roller and the heddle.
At the distance of cm, a split reed of 52.4 / inch is provided in a warp group having a width of 5 cm from each end of both ears, and two warps are inserted per one. Weaved by

[Weaving conditions]

Total number of warp threads: 5200 warp density: 105 threads / inch weft density: 80 threads / inch weaving machine; Tsuda Koma ZW-200 weaving machine rotation speed: 650 times / minute or more according to the weaving method of the present invention, and divided reeds However, the continuous operation test of two methods of weaving, that is, the case of the weaving method of the comparative example and the other conditions being the same as above, was performed for 10 days.

The results are shown in Table 1.

As is apparent from the above table, the weaving method of the present invention using the divided reeds is far superior in operability to the weaving method of the comparative example not using the divided reeds. .

(G) Effect of the Invention Since the present invention has the above-described structure, the warp threads hardly contact with each other during weaving. Therefore, spun yarn, loop fluff yarn, spun yarn-like fluff yarn, etc. In the case of using warp as a warp, conventionally, entanglement and warp breakage occurred frequently due to the fluff and loops, but according to the present invention, such entanglement and warp breakage almost disappear, and the operability is remarkably improved. I was able to.

Claims (1)

[Claims] 1. A fluid jet type characterized in that a split reed for splitting a warp is provided on at least a selvage on the weft insertion side and in the vicinity thereof on a warp running path between a back crest roller and a heddle. Weaving method for shuttleless loom.