JPS6135579Y2 - - 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 are creating high added value due to quality characteristics such as the aesthetic appearance 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 characteristic 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 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 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 pile. 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 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 a piece of pile yarn P is entangled with one of the weft yarns 1' and 3', or the weft yarns are separated vertically by the ground warp G' and the sinking yarn G' as shown in FIG. Weft 1' bound by rare wefts 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 entangling the pile yarn pieces with the ground structure, bypassing the weft 3' located on the back side, and turning the root of each pile yarn piece on the front side. In this method, a plurality of colored pile yarns are threaded through each reed feather as a group, and one selected by a shear card is applied according to the desired pattern. Theoretically, the Mitsukoshi weave is unsuitable as a double weave pile structure that can simultaneously produce two carpets of the same texture on the top and bottom by opening the top and bottom of the pile yarn in two stages 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 would be significantly reduced to 1/3, making it technically unsuitable. The illustrated pile structure does not improve the shedding resistance of the double weave 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 the sunken yarn G', and the wefts located above are 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. 2, consists of two types of pile yarn pieces P and Q, pile sinking yarns and ground warp yarns G, and two types of fastening warp yarns A and B that form a pair.
and the four kinds of wefts 1, 3, 5, and 7 that form pairs are the unit constituent threads of the basic woven pile structure, and the two kinds of fastening warps A and B are mutually connected to one fastening warp A (or B).
is woven by continuously passing over the four types of wefts 1, 3, 5, and 7, the other fastening warp B (or A) continuously goes under these four types of wefts and is woven in an alternating repetition. Therefore, these four types of weft yarns are bundled into one bundle by the intersection of the two types of fastening warp threads A and B in the alternating repetition, and the pile sinking threads and ground warp threads G are the four types of weft threads in the fastening bundle. The weft yarns are divided into upper, middle, and lower three layers: upper two types 1 and 5, middle type 3, and lower type 7, and these are continuous in a straight line in the weaving direction. , for the ground texture formed by the warp yarns A and B and the weft yarns 1, 3, 5, and 7, one type of pile yarn piece P is one type of weft yarn 1 of the top two types of wefts, and the other type of pile yarn The piece Q is characterized in that it is formed in a relationship in which it is entangled with the other type of weft 5 of the upper two types of weft, respectively, in a floating tassel shape.

Of course, a woven pile fabric in which this pile structure is woven alternately as an upper fabric and a lower fabric on a double-faced Wilton loom by one running shuttle is within the technical scope of the present invention; To illustrate and explain the suitability as a double weave pile fabric weaving technique with reference to FIG. 1, in the first running shuttle, the upper cloth tightening warp D is used as the upper layer, and the upper cloth warp H and the upper cloth tightening warp C are combined with the desired pile. Yarns C and D and lower cloth tightening warp A are used as the middle layer, desired pile yarns A and B, lower fabric warp G and lower fabric warp B are used as the lower layer, and the upper layer and middle layer of these weft yarns form an upper opening and a middle layer. In the two-stage opening with the lower opening and the lower layer, the two shuttles are run simultaneously to weave the wefts 2 and 1 into the upper fabric and the lower fabric, and in the second running shuttle, the warps C, H, C and Weft yarns 4 and 3 are woven upward and downward at the same time in the two-stage shedding, with D as the upper layer, warps D, A, and B as the middle layer, and warps B and G as the lower layer, and warps C and H as the upper layer in the third running shuttle. , weft yarns 6 and 5 are woven in the same way on top of the two-stage shedding, with warp yarns D, C, D, and A as the middle layer and warp yarns B, G, A, and B as the lower layer, and warp yarns C, H, and I in the fourth running shuttle. , C and D are upper layers, warp D,
A, G, and B are the middle layer, and the warp B is the lower layer, and the wefts 8 and 7 are woven in the same way above and below, and the upper cloth tightening warp in these first, second, third, and fourth running shuttles is The opening positions of C and D and the lower cloth tightening warps A and B are mutually changed, and the opening positions of the other warps are changed to the fifth, sixth, seventh and seventh in the same way as in the first to fourth running shuttles. Perform eight running shuttles to simultaneously weave the wefts 11 and 21, 31 and 41, 51 and 61, 71 and 81 up and down, respectively, and repeat these first to eighth running shuttles to weave the wefts 12 and 22, 32 and 42,
52 and 62, 72 and 82, 13 and 23, 33 and 4
3, 53 and 63 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 yarns A, B, C and D used according to the desired number of colors can be woven into a desired design pattern. When selecting warp threads that change from the upper layer to the lower layer or from the lower layer to the upper layer in each running shuttle using a jiya guard, dobby, or other patterning device, the warp threads that interlock from the upper layer to the lower layer in the two-stage shedding movement are selected according to the selection. Since the upper and lower fabrics are only made of pile yarns, the upper and lower fabrics are woven by cutting at the continuous pile yarns X-X. When the tightening warp yarns are made slightly weaker than the ground warp yarns, and the pile yarns are made significantly weaker than the ground warp yarns and the tightening warp yarns, the woven pile structure is It is configured in the form shown in Figure 2.

However, according to the present invention, there are four types of weft yarns that are woven to engage the two types of pile yarn pieces P and Q in the ground weave, and these weft yarns are tied together into a bundle by the tightening warp yarns A and B. Because they are bundled, the maximum pile density is higher than the conventional Futakoshi texture, and these are the wefts 1 and 5 of the top two types.
It is also clamped by the clamping pressure that acts between the
Since the ground structure is formed by a three-layer arrangement of weft yarns, a woven pile fabric with high density and thickness and resistance to shedding can be obtained, and effects such as high-speed production using a two-shuttle running simultaneously are produced.

In addition, the number of unit constituent yarns such as ground warp, pile yarn, two types of paired fastening warps, and four types of paired weft yarns should be made into an appropriate plurality, such as by pulling two yarns together and using one type of weft yarn. , or changes in the shuttle running order illustrated in FIG. 1 do not impede the effects of the present invention and do 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] Two types of pile thread pieces P and Q, and pile sinking thread Ro,
The ground warp G, the two types of fastening warps A and B that form a pair, and the four types of weft threads 1, 3, 5, and 7 that form a pair are the unit constituent threads of the basic woven pile structure. Warp threads A and B are mutually fastened; one warp thread A is one of the four kinds of weft threads 1,
When weaving continues over 3, 5, and 7, the other fastening warp B is continuously woven under those weft yarns 1, 3, 5, and 7, and the weaving continues through alternating repetitions. Two types of warp threads A and B in
These four types of weft yarns 1, 3, 5, and 7 are tied into one bundle by crossing, and the pile sinking threads RO and ground warp yarns G are the upper two types of weft yarns 1, 3, 5, and 7 in the bundle. Seeds 1 and 5, middle grade 3, and bottom grade 7 are divided into upper, middle, and lower three layers, each of which continues linearly in the weaving direction, thus forming ground warp G, pile sinking yarn B, and tightening warp yarns A and B. And for the ground structure formed by the wefts 1, 3, 5, and 7, one type of pile yarn piece P is one type of weft yarn 1 of the two types of wefts 1 and 5, and the other type of pile yarn piece Q is Another type of weft 5 of the above two types of weft 1 and 5
The structure of a woven pile fabric is characterized in that each of the woven pile fabrics is formed in a floating tassel-like relationship.