JPS6129743Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a woven pile structure (woven structure) of a woven pile fabric produced by a pile loom such as a Moquette loom or a Wilton loom.

Recently, the production of pile fabrics has changed to tufted, knitted,
As speed increases due to innovative technologies such as bonded flocking, woven pile fabrics create high added value due to quality characteristics such as the aesthetic appearance form unique to the woven structure and the texture of the pile and ground structure, and are becoming a high-end product in the market. It maintains its status as a pile fabric. In this way, it has added value due to its woven structure, so when finishing the raw woven pile fabric, it is possible to stabilize the shape by fixing the pile with latex backing applied to the raw tufted fabric or by laminating the backing fabric. These treatments are not appropriate as they significantly impede the quality characteristics unique to woven pile fabrics, and are therefore not suitable for tufted fabrics, etc., which are produced at high speed and at low cost, in terms of physical strength such as pile removal strength of woven pile fabrics. There was a technical problem that it was inferior. Such technical problems arise when using worsted yarn, which is made by spun fibers evenly into pile yarn, with the aim of making woven pile fabrics even more luxurious, or when using spun-like yarn, which is made by spun-like yarn in response to innovations in spinning technology. When using filament yarns (long fibers), special attention must be paid to the fact that these yarns have smooth surfaces and less frictional resistance than conventional woolen yarns, and tufted fabrics, etc. With the development of fine gauges, electronic patterning equipment, continuous pile printing equipment, etc., the quality is gradually increasing, and the market field that competes with woven pile fabrics in terms of quality is expanding, and this is a problem that must be pointed out in particular. be. Competition in this market is particularly strong in the field of pile fabrics, which are used as floor coverings that are used under harsh conditions and require special durability. The present invention will be specifically explained in relation to a woven pile fabric.

Regarding the form of entanglement between the pile yarn pieces and the ground texture of woven pile fabrics, generally speaking, the pile yarn pieces are connected to one weft yarn.
360° detour floating pile (loose pile)
pile) and 720° + 180°n (n
= 0, 1, 2...) It is classified as a fast-pile (fast-pile) that bends and detours, and a fast-pile has several weft threads with a bending angle that is more than twice that of a floating tassel. However, because three or more weft yarns are required to entangle one pile yarn piece, the pile density is less than 1/3 of that of floating pile fabric, and the pile density is less than 1/3 of that of floating pile fabric. It is not suitable as a pile structure for Wilton carpet (hereinafter referred to as Wilton), which requires a high compression elastic recovery rate. For this reason, the form of entanglement of Wilton's pile is as shown in Fig. It is a yarn that does not form a pile at the corresponding position and sinks below the ground weft (the same applies hereinafter), and is separated into the upper and lower parts and driven in, and is tightened by the warp yarns A' and B'. The so-called "Futakoshi weave" in which the pile yarn piece P is entangled with one of the warp yarns 1' and 3', or the pile yarns are separated vertically by the ground warp G' and the sunken yarn Ro' as shown in FIG. As shown in the so-called "Mitsukoshi weave" in which the weft threads 1' and 5' of the weft threads 1', 2', and 5' are bound together by the rarely tightened warp threads A' and B', a floating tassel structure is formed. However, it lacked hair loss resistance. However, in the Mitsukoshi tissue, the pile yarn pieces are subjected to the pinching pressure of the two separately bundled weft yarns 1' and 5', so they are more resistant to hair loss than the Futakoshi tissue, as shown in Figure 5. In order to further improve the hair loss resistance of the Mitsukoshi tissue, the pile structure according to Utility Model Publication No. 46-11740 has the pile yarn pieces deeply intertwined with the ground structure and the weft yarn 3' located on the back side bypassed, and the individual pile yarn pieces are The aim is to pinch the root between the weft threads 1' and 5' located on the front side, and a plurality of colored pile threads are threaded through each reed feather as a group, and selected using a shear card according to the desired pattern. Theoretically, the Mitsukoshi weave is unsuitable for a double weave pile structure in which two carpets of the same texture are produced on the top and bottom at the same time by opening the upper and lower two stages of a single pile yarn and using two simultaneous running shuttles. Even if it were possible to form the Mitsukoshi structure by using a single shuttle instead of having two openings, the production volume would be significantly reduced to 1/3, making it technically unsuitable. The pile structure illustrated in FIG. 5 does not improve the shedding resistance of the double-woven pile fabric (Wilton). Furthermore, the pile structure shown in FIG. 6 was created by focusing on the fact that the single Wilton Mitsukoshi structure shown in FIG. 4 has more hair loss resistance than the Futakoshi structure shown in FIG. It was developed so that piece P' is pinched against the ground structure by weft yarns 1' and 7', which are separately bundled by warp yarns A' and B'. Compared to the Mitsukoshi weave shown in the figure, it is necessary to insert an extra weft 3', and the wefts located above are separated vertically by the ground warp G and sunken yarn G and are located at 1', 3', and 7'.
3, and the normal double ・
Compared to Wilton's Futakoshi structure, the maximum pile driving density is significantly reduced to 1/3, making it impossible to obtain Wilton's high-density pile.

As mentioned above, this invention has been developed through extensive research into added value factors of woven pile fabrics, such as versatility for single wire pile looms and double face pile looms, pile resistance to shedding, pile density, productivity, etc. from both technical and economical perspectives. It has been completed.

That is, the woven pile structure according to the present invention, as illustrated in FIG. Four types of wefts 1, 3, 5, and 7 are used as unit constituent yarns of the basic woven pile structure, and two types of fastening warps A and B are mutually arranged, and one fastening warp A (or B) is one of the four types of wefts. 1, 3, 5, 7 (or 11, 31, 51,
71) When the other fastening warp B (or A) is woven continuously over the four types of wefts 1,
3, 5, 7 (or 11, 31, 51, 71) and the intersecting of two types of warp threads A and B in the alternating repetitions. According to these four types of weft 1,
3, 5, 7 (or 11, 31, 51, 71) are tied into a bundle, and the pile sinking threads RO and ground warp G are the four types of wefts in each bundle, the top two types 1 and 3. , the upper, middle, and lower three layers of middle class 7 and lower class 5 are continuous linearly in the weaving direction, and thus for the ground texture formed by ground warp, pile sunken thread, fastening warp, and weft. The pile yarn piece P is between the upper two types of wefts 1 and 3, between one of the upper two types of weft 1 and the lower type of weft 5, and between the lower type of weft 5 and the middle type of weft. 7, between the middle type weft 7 and the other weft 3 of the upper two types, and between the other weft 3 and one of the upper two types of weft 11 of the other adjacent bundle. It is characterized in that it is formed in a relationship that is connected to the earth's structure by passing through each of them in turn.

It goes without saying that a woven pile fabric in which this pile structure is run in a double-face Wilton loom and woven alternately as an upper fabric and a lower fabric falls within the technical scope of the present invention, but The suitability of the running shuttle as a double weave pile fabric weaving technique is illustrated and explained in FIG. The woven warp D, the desired pile yarns C, D, and the lower cloth tightening warp A are used as the middle layer, the desired pile yarn RO, the lower cloth warp G, and the lower cloth tightening warp B are used as the lower layer, and the upper layer of these warps is In the two-stage opening of the upper opening with the middle layer and the lower opening with the middle layer and lower layer, two shuttles are run simultaneously to weave the wefts 2 and 1 into the upper fabric and the lower fabric, and the warp threads are woven into the upper fabric and the lower fabric in the second running shuttle. Weaving yarns 4 and 3 upward and downward at the same time in a two-stage opening with H and C as upper layers, warps D, C, D, and A as middle layers, and warps B, G, 1, and B as lower layers, and creating a third running shuttle. , the warps D, H, C, and D are the upper layer, the warps C, A, G, and B are the middle layer, and the warps B and 1 are the lower layer, and the wefts 6 and 5 are simultaneously woven on top. In the four-running shuttle, the warp D,
The wefts 8 and 7 are woven upward and downward at the same time in a two-stage shedding in which H, 1, C and D are the upper layer, warps C, A and B are the middle layer, and warps B and G are the lower layer. , the open positions of the upper cloth tightening warps C and D and the lower cloth tightening warps A and B in the third and fourth running shuttles are mutually exchanged, and the opening positions of the other warps are sequentially changed in the same manner as in each of those running shuttles. The fifth, sixth, seventh and eighth running shuttles are run, and the weft threads 11 and 21, 31 and 4
1, 51 and 61, 71 and 81 are simultaneously woven in the upper and lower parts, and in the repetition of these first to eighth running shuttles, wefts 12 and 22, 32 and 42, 52 and 62, 7
2 and 82, 13 and 23, 33 and 43, 53 and 6
3, and 73 and 83 are woven upward and downward at the same time, and in this way, a kind of opening position in the pile threads A, B, C and D, which are used according to the desired number of colors, can be woven into the first and the first positions according to the desired design pattern. Selection is made by jiya guard, dobby or other patterning device so as to change from the upper layer to the lower layer or from the lower layer to the upper layer between the second, third and fourth, fifth and sixth, seventh and eighth running shuttles. In this case, since the selected pile yarn is the only warp yarn that moves from the upper layer to the lower layer in the two-step shedding motion, the upper and lower cloths are double-layered by cutting the continuous pile yarn at X-X. The woven pile fabric is woven, and the warp tension during weaving is the largest in the ground warp.
When the tightening warp threads are made slightly weaker than the ground warp threads, and the pile threads are made significantly weaker than the ground warp threads and the closing warp threads,
The woven pile structure is constructed in the form shown in FIG. 2 due to the difference in tension and the strong reeding force in the woven fabric.

However, according to the present invention, the pile yarn piece P bends between the weft yarns that are divided into upper and lower layers and deeply roots on the back side.
The bending is so complicated that the bending angle is comparable to that of a closed tassel, and the standing part of the pile is pinched between weft yarns 1 and 3, and four types of weft yarns are placed between each weft yarn that passes through the bending of the pile yarn piece. Since the clamping pressure of the warp yarns that are tied into the bundle is concentrated, the pile yarn pieces P are firmly entangled with the ground structure, resulting in excellent hair loss resistance, and one pile yarn piece is attached to four types of weft yarns. Even if the weft yarns are intertwined, the weft yarns are divided into upper, middle, and lower layers, so the maximum pile density can be maintained at the same level as the conventional Mitsukoshi fabric shown in Figure 4. Furthermore, the pile sinking yarns RO and the ground warp yarns G in the ground structure are separated by the weft yarns 7 and are not arranged in parallel in the weaving width direction, making it possible to increase the warp density, and also to improve the weaving process. It is possible to avoid yarn breakage due to abrasion and abrasion between pile pile yarns and ground warp yarns during shedding motion, and it is possible to produce woven pile fabrics at high speed by using two shuttles running simultaneously.

In addition, the number of unit constituent threads such as ground warp, pile thread, two types of paired fastening warps, and four types of paired weft threads may be as many as appropriate, such as by pulling two of each thread together to form a type of weft thread. This does not impede the effects of the present invention and does not limit the technical scope of the present invention.

[Brief explanation of the drawing]

FIG. 1 is a side view showing the weaving process of the woven pile fabric according to the present invention, FIG. 2 is a side sectional view of the woven pile fabric according to the present invention, FIGS. 3, 4, 5, and 6.
The figures are side sectional views of comparative woven pile fabrics for comparing the woven pile fabrics according to the present invention. 1, 2, 3, 4, 5, 6, 7, 8...weft,
A, B, C, D...Tight warp thread, P...Pile thread piece,
G, H... ground warp thread, I, RO, H, NI... pile thread.

Claims (1)

[Scope of utility model registration request] Pile thread pieces, sunken threads, ground warp threads, two types of paired fastening warps, and four paired types of weft threads are the unit constituent threads of the basic woven pile structure, and the two types of fastening warps are mutually When one warp thread is woven successively over four kinds of weft threads, the other warp thread is woven successively under those four kinds of weft threads, by alternating repetition. These four types of wefts are tied into a bundle by the intersection of two types of warp threads in the continuous and alternating repetition, and the sunken threads and ground warp threads are the upper two types and the middle type of the four types of weft threads in the bundle. The pile yarn pieces are linearly continuous in the weaving direction between the upper, middle, and lower three layers of the upper and lower types, and are formed by the ground warp, sunken thread, fastening warp, and weft. Between the upper two types of wefts, between the upper two types of wefts and the lower type of wefts, between the lower type of wefts and the middle type of wefts, and between the middle type of wefts and the other weft of the upper three types. between and
A woven pile characterized in that it is formed in a relationship in which the other weft yarn and one of the two weft yarns of the upper two types of adjacent other bundles are passed sequentially and entwined with other tissues. Fabric structure.