JPS6129742Y2 - - 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, since it has added value due to its woven structure, when finishing the raw woven pile fabric, the pile is fixed by latex backing applied to the raw tufted fabric, and the shape is stabilized 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 these yarns because they have smooth surfaces and low friction resistance compared to conventional woolen yarns, and tufted fabrics, etc. However, due to 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 must be especially noticed. That's a problem. 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, since 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 interlocking form of Wilton's pile is as shown in Fig. Warp 1 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 driven in with upper and lower separation, and is tied by warps A' and B'. The so-called "two-koshi structure" in which a piece of pile yarn P is entangled with one of the pile yarns G' and 3', or as shown in FIG. Weft 1' bound by warp A' and B',
As shown in the so-called "Mitsukoshi weave" in which the wefts 1' and 5' of the wefts 3' and 5' are intertwined, the weft belongs to a floating form and lacks hair loss resistance. just,
In the Mitsukoshi tissue, the pile thread pieces are subjected to the pinching pressure of the two separately bundled weft yarns 1' and 5', so they have better hair loss resistance than the Futakoshi tissue, and the pile yarn pieces shown in FIG. The pile structure according to Kosho 46-11740 further improves the hair loss resistance of the Mitsukoshi structure by deeply intertwining the pile thread pieces with the ground structure and bypassing the weft 3' located on the back side, and by cutting the roots of each pile thread piece. The intention is to apply pressure between the weft yarns 1' and 5' located on the front side,
A plurality of colored pile yarns are threaded through each carding blade as a group, and the same texture is created in the upper and lower sections by opening the upper and lower two stages of one pile yarn selected by the shear guard according to the desired pattern and using two simultaneous running shuttles. The Mitsukoshi structure is theoretically unsuitable for a double woven pile structure in which two piles of carpet are produced at the same time, and the Mitsukoshi structure could be formed by using a single shed instead of having two tiers of openings. However, the productivity was significantly reduced to 1/3, making it technically unsuitable.The pile structure shown in Figures 4 and 5 was used to improve the hair loss resistance of the double-woven pile fabric (Wilton). It cannot be improved. 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 the sunken yarn G', and the wefts located above are 1', 3', and 7'.
3, and the normal double ・
Compared to Wilton's Futakoshi organization, Wilton's maximum pile cannot be obtained.

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. 2, includes a pile yarn piece P, a ground warp G, two types of paired warp yarns A and B, and four types of paired weft yarns 1, 3, 5, and 7 are the basic tissue unit constituent yarns, and the two types of warp yarns are bent vertically correspondingly, and the four types of weft yarns 1, 3, 5, and 7 are bundled and continuous. The four types of wefts in each bundle are separated and arranged in two types, 1 and 7, 3 and 5, vertically back and forth by the ground warp G, and the upper two types of wefts 1 are arranged so that the pile yarn piece P can be moved back and forth.
and 7 and continue to the ground texture, branching and passing between the upper and lower corresponding front two types of wefts 1 and 3 and between the latter two types of wefts 5 and 7, respectively, and passing through the lower two types of wefts It is characterized in that it is formed in a relationship that bypasses the front weft 3 and the rear weft 5 and engages with the ground texture.

It goes without saying that it is within the technical scope of the present invention to form this pile structure by alternately weaving the upper and lower fabrics on a double-faced Wilton loom using a single shuttle. The suitability of the double weave pile fabric weaving technique using a running shuttle is illustrated and explained in Fig. 1. In the first running shuttle, the pile yarn I and the upper cloth tightening warp C are used as the upper layer, and the upper fabric warp H and the upper cloth are used as the upper layer. The tightening warp D, the desired pile yarns C, D, and the lower fabric tightening warp B are used as the middle layer, the desired pile yarn RO, the lower fabric warp G, and the lower fabric tightening warp A are used as the lower layer, and the upper layer of these warps is At the two-step opening of the upper opening with the middle layer and the lower opening with the middle layer and the lower layer, two shuttles are run simultaneously to weave the weft threads 2 and 1 into the upper fabric and the lower fabric, and in the second running shuttle, the warp thread H is woven into the upper fabric and the lower fabric. , d, c and c
is the upper layer, warps D, B, G and B are the middle layer,
Weave yarns 4 and 3 upward and downward at the same time in a two-stage shedding with warps A and A as the lower layers, and in the third running shuttle, warps D, H, C and D as upper layers, and warps C, B,
G and B are the middle layers, warps B and A are the lower layers, wefts 6 and 5 are simultaneously woven on top, and the warps D and A are the upper layers in the fourth running shuttle,
The warps C, H, C, D and B are the middle layer, and the warps A,
The weft yarns 8 and 7 are simultaneously woven in the upper and lower layers in the single-stage opening with G and B as the lower layers, and then these first to
The opening positions of the upper cloth tightening warps C and D and the lower cloth tightening warps A and B in the fourth running shuttle are half-turned, and the opening positions of the other warps are the same as those of the first to fourth running shuttles. ,Seventh,
Run the eighth running shuttle and weft threads 11 and 21, 31 and 41, 5
1 and 61, 71 and 81 are simultaneously woven on the upper and lower sides, respectively, and the pile yarns are
A kind of opening position among B, C, and D is selected from the upper layer to the lower layer between the first and second, third and fourth, fifth and sixth, and seventh and eighth shuttles according to the desired design pattern. fart,
Or jiacquard, changing from the lower layer to the upper layer.
When selecting with a dobby or other patterning device, the selected pile yarn is the only warp that moves from the upper layer to the lower layer in the two-step shedding motion, so the X- By cutting at X, a woven pile fabric is woven with upper and lower layers, and the warp tension during weaving is made the highest in the ground warp, the tightening warp is slightly weaker than the ground warp, and the pile yarn is woven between the ground warp and the tightening warp. When the woven pile structure is made significantly weaker than that shown in FIG. 2, the woven pile structure is formed into the form shown in FIG. 2 due to the difference in tension and the strong reeding force at the front of the woven fabric.

According to the present invention, the pile yarn piece P bends between the upper and lower weft yarns and deeply roots on the back side, and the bending angle is about 45 degrees around the weft yarns 1 and 7, respectively.
Approximately 315 degrees around weft 3 and 5, total 720
The warps A and B are bent in the same manner as ゜ and closed, and are tied together in a bundle between the four types of wefts 1, 3, 5, and 7.
Because of the strong clamping pressure, the pile yarn piece P that bends between these wefts is strongly held between those wefts, and is also held between wefts 1 and 7 and spread between wefts 3 and 5, resulting in a poor ground structure. In addition, the four weft threads as unit constituent threads are divided into upper and lower layers, so that the maximum pile density equivalent to that of the conventional three-fold structure shown in Fig. 4 can be maintained. A high-density pile fabric can be obtained, and the pile yarn pieces P are arranged line-symmetrically with the preceding and following weft yarns 1, 3 and 5, 7 in the basic structure unit, so the pile yarns stand upright and have excellent compression resistance. It produces effects such as having

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 drawings]

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 yarn pieces, ground warp, two types of paired warp yarns, and four types of paired weft yarns are the unit constituent threads of the basic woven pile structure, and the two types of tightening warp yarns correspond to the top and bottom. The four types of weft yarns in each bundle are arranged vertically by the ground warp yarns, and the four types of weft yarns are bent and bundled. It continues from the ground texture, branches between the front two types of wefts and the back two types of wefts corresponding to the upper and lower sides, and bypasses the front and lower two types of wefts to entangle with the ground texture. A structure of a woven pile fabric characterized by being formed with a pile.