【発明の詳細な説明】[Detailed description of the invention]
この発明はエアージエツトルームのような断片
織機により糊付けした経糸を用いて製織するに当
り耳部の経糸がゆるむのを防止する方法に関す
る。
通常エアージエツトルームのような断片織機に
おいて糊付けした経糸を用いて製織する際緯糸は
緯入されたあと両端がカツトされているため緯糸
に張力がかかりにくく経糸の張力とのバランスが
巾方向でくずれ、特に両サイドの耳部の経糸と緯
糸とでは緯糸が負け耳部の経糸の織縮みが少な
く、すなわち耳部の経糸の屈曲が少なく、中央部
の経糸より耳部の経糸の織り進み量が少ないため
耳部で経糸が余り耳部の経糸のゆるみが発生し
た。
経糸がゆるむと経糸の開口が不完全となり緯糸
を挿入した際にゆるんだ経糸にぶつかりシヨート
ピツクして緯糸の到達を緯糸用のフイーラーが検
知しないため織機が停止してしまう。そこで仕方
なくゆるんだ経糸に割りピンのごときおもりを下
げ経糸に張力を与え経糸をピーンと張るがそのう
ちゆるんだ経糸を切つて継ぎ直し経糸のゆるみを
除去してやらなければゆるんで垂れた経糸が捲き
込まれるなどして別のトラブルが発生するため非
常に困つていた。特にガラスヤーンを用いたガラ
スクロスの場合糸の伸度がほとんどないため経糸
の張力をコントロールして経糸のゆるみ防止は不
可能に近く公開特許公報昭54―131073のように耳
部のみの張力調整装置を用いても極くわずかの間
で効果を失ない元の張力分布になつてしまい実用
的でなかつた。なぜならば、製織時の経糸と緯糸
の織縮みのバランスが適当にならないかぎり耳部
の経糸の織り進み量が少ないためである。本発明
は耳部の経糸のゆるみに対して耳部の経糸を無糊
付の糸を用いることにより地糸と耳部の経糸の織
縮みを変え、エアージエツトルームのような断片
織機で打込まれた低張力の緯糸でも耳部の経糸が
屈曲し織り進められることにより耳部の経糸のゆ
るみを防止するのが本発明の特徴である。
さらに無糊付けの経糸として地の経糸と同じ番
手の双糸または小さい番手の双糸を用いることが
経糸の屈曲しやすさからと、および綜絖でのしご
きに強く好ましい。地の経糸より大きい糸を用い
ることは耳部が厚くなりクロスをロールに捲いた
時耳高となり捲きシワが入り使えない。双糸を用
いることにより高い回転数でしかも高い稼動率で
断片織機を運転できる。
また耳部に地糸と違つた無糊付けの糸を用いる
ためどうしても地と耳の境目がはつきりしてしま
うが耳がついたように見えると都合の悪い織物の
場合地の経糸と耳部に入れた無糊付けの糸を交互
に並べることにより耳と地の境目をなくし一様に
することができる。
以上発明について実施例を上げて説明する。
例えば、ガラスヤーンECG75―1/0―IZを経糸
とするときスラツシヤーサイザーで乾燥シリンダ
ーのうしろ、ルームビームに糊付けした経糸を捲
取る直前に耳部に糊付けしてないECG75―1/0―
IZを両側に各４本入れて捲取つた。緯糸に同じく
ガラスヤーンECG75―1/0―IZを経密度44本／25
mmに対し緯密度32本／25mm織機の回転数350rpm
でエアージエツトルームで製織したところ耳部の
経糸のゆるみがなかつた。
また、同じく上記と同じ品種のガラスクロスを
製織するに当り、耳部の経糸に両側各８本の双糸
ECG150―1/2―３，8Sを入れて上記と同様にル
ームビームをつくり回転数500rpmで製織したが
耳部の経糸切れもなくしかも経糸ゆるみもなく製
織できた。
なお、ガラスヤーンの糊付あり、なしの硬さを
次の方法で測定した。図１に示す水平に置いた台
Ａの上にガラスヤーンＢと直尺Ｃを並べてのせ
る。台の右の方へ直尺ＣとガラスヤーンＢをいつ
しよにずらし、ガラスヤーンＢが、台Ａから長さ
200mm飛び出した所で、ガラスヤーンＢの先端が
下に垂れた高さｈを測定する。
ガラスヤーンＢの硬さが硬い程ｈは小さくな
る。各種ガラスヤーンの糊付ありなしの硬さｈを
第１表に示す。
糸の太さと糸の硬さｈの関係を第２図に示す
が、糸の太さより糊付のありなしの差の方が糸の
硬さには効いていることが判る。
The present invention relates to a method for preventing the warp threads at the selvedge from loosening when weaving using glued warp threads on a fragmentary loom such as an air jet loom. Normally, when weaving using glued warp threads on a fragmentary loom such as an air jet loom, the weft threads are cut off at both ends after weft insertion, so tension is less likely to be applied to the weft threads and the balance with warp tension is balanced in the width direction. Weaving, especially in the warp and weft of the selvage on both sides, the warp of the selvage has less shrinkage, that is, the warp of the selvage has less bending, and the weaving advance of the warp of the selvage is smaller than that of the warp of the center. Because of the small amount of warp threads in the selvedges, the warp threads in the selvedges became loose. If the warp threads become loose, the shedding of the warp threads will be incomplete, and when the weft threads are inserted, they will collide with the loose warp threads and cause the weft feeler to not detect the arrival of the weft threads, causing the loom to stop. So, I had no choice but to put a weight like a cotter pin on the loose warp threads to give tension to the warp threads and make them taut, but eventually I cut the loose warp threads and rejoined them.If I did not remove the looseness of the warp threads, the loose warp threads would wind up. It was very troublesome because other problems such as being broken were caused. In particular, in the case of glass cloth using glass yarn, the elongation of the yarn is almost non-existent, so it is almost impossible to control the tension of the warp threads to prevent them from loosening, as disclosed in Japanese Published Patent Application No. 131073-1983, where the tension is adjusted only at the ears. Even if a device was used, the tension distribution would return to its original state without losing its effectiveness within a very short period of time, making it impractical. This is because unless the warp and weft shrinkage balance is appropriate during weaving, the weaving progress of the warp at the selvedge will be small. The present invention changes the weaving shrinkage of the base yarn and the warp of the selvedge by using non-sizing yarn for the warp of the selvedge, and looms with a fragmentary loom such as an air jet loom. A feature of the present invention is that the warp yarns in the selvage portion are bent and the weaving progresses even with the low tension weft threads inserted, thereby preventing the warp yarns on the selvedge portion from loosening. Furthermore, it is highly preferable to use twin yarns with the same count as the ground warp or with a smaller count as the non-sizing warp yarns, because the warp yarns are easier to bend and are easier to heddle with heddles. If a thread larger than the warp of the cloth is used, the selvage becomes thick and when the cloth is rolled up into a roll, the selvage becomes high and wrinkles occur, making it unusable. By using double threads, the fragment loom can be operated at high rotational speeds and high operating rates. Also, since the selvage uses unsizing thread, which is different from the ground thread, the border between the ground and the selvage inevitably stands out, but in the case of textiles, it is inconvenient to make it look like there is an selvage between the warp of the ground and the selvage. By alternately arranging the non-glued threads in the selvedge, you can eliminate the border between the selvage and the ground and make it uniform. The invention will be described above with reference to embodiments. For example, when glass yarn ECG75-1/0-IZ is used as the warp, ECG75-1/0 is glued to the back of the drying cylinder with a slatsher sizer and the warp is glued to the room beam, and the selvedge is not glued just before winding up the warp. ―
I put 4 pieces of IZ on each side and rolled it up. The same glass yarn ECG75-1/0-IZ is used for the weft with a warp density of 44/25
Weft density 32 per mm/25mm loom rotation speed 350rpm
When I weaved it in an air jet loom, the warp threads at the selvedges did not come loose. In addition, when weaving glass cloth of the same variety as above, eight double threads on each side are added to the warp of the selvage.
I made a room beam in the same way as above by inserting ECG150-1/2-3,8S and weaved at a rotation speed of 500 rpm, but I was able to weave without the warp breaking at the selvedges or loosening the warp. The hardness of the glass yarn with and without adhesive was measured by the following method. A glass yarn B and a straight length C are placed side by side on a horizontally placed table A shown in FIG. Shift the straight length C and the glass yarn B to the right side of the table, so that the glass yarn B has a length from the table A.
Measure the height h at which the tip of glass yarn B hangs down at the point where it protrudes 200 mm. The harder the glass yarn B is, the smaller h becomes. Table 1 shows the hardness h of various glass yarns with and without adhesive. The relationship between thread thickness and thread hardness h is shown in Figure 2, and it can be seen that the difference between the presence and absence of sizing is more effective in determining thread hardness than the thread thickness.
【表】
また、上記と同じ品種のガラスクロスを製織中
織機の後方よりECE225―1/2―３，8Sを両側に
各々８本を原糸ボビンよりテンサーを通して耳部
経糸として送り込んだところ同様に耳部の経糸ゆ
るみがなく製織できた。
さらに、上記と同じ品種のガラスクロスを製織
中織機の後方よりECG150―1/2―３，8Sを両側
に各々８本と地の経糸の糊付け糸ECG75―1/0―
IZとを１本ずつ交互に に通して製織したところ
経糸ゆるみがみられずしかも地と耳の境がはつき
り見えずと耳が一体のガラスクロスを得た。
以上実施例で説明したごとく、本発明によりエ
アージエツトルームのような断片織機において耳
部の経糸がゆるむのを防止し安定して製織できる
ようになつた。さらに双糸を用いることにより高
回転数でも経糸ゆるみを防止できるし、さらに交
互に入れることにより地と耳の境をなくすことも
できた。[Table] In addition, 8 pieces of ECE225-1/2-3, 8S were fed into both sides from the back of the weaving medium loom using the same type of glass cloth as above, and 8 pieces each were sent from the raw bobbin through the tensor as the selvedge warp. Weaving was possible without any loosening of the warp threads at the selvedges. Furthermore, glass cloth of the same type as above was weaved from the back of the middle loom, with 8 ECG150-1/2-3 and 8S on each side and the sizing thread ECG75-1/0- for the ground warp.
When IZ and IZ were woven one by one through the thread alternately, a glass cloth with integrated selvedges was obtained, with no warp threads being loosened, and the border between the ground and selvedges being clearly visible. As explained above in the embodiments, the present invention makes it possible to prevent the warp yarns in the selvedges from loosening in a fragment loom such as an air jet loom, and to perform stable weaving. Furthermore, by using twin threads, it was possible to prevent the warp threads from loosening even at high rotation speeds, and by inserting them alternately, it was possible to eliminate the border between the ground and the selvedge.
【図面の簡単な説明】[Brief explanation of the drawing]
第１図はガラスヤーンの硬さ測定法を示す図
面、第２図は糊付および糊なしガラスヤーンの繊
度（テツクス）と垂れ下り高さｈとの相関グラフ
である。
Ａ…水平台、Ｂ…ガラスヤーン、Ｃ…直尺。
FIG. 1 is a drawing showing a method for measuring the hardness of glass yarn, and FIG. 2 is a graph showing the correlation between the fineness (texture) and the hanging height h of glass yarns with and without sizing. A...Horizontal stand, B...Glass yarn, C...Straight scale.