JP2000070104A - Carpet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To cover the same floor with an upper cloth double Wilton and a lower cloth double Wilton by preventing the difference in appearance from being generated on the pile surfaces of carpets due to the difference in a manufacturing method even when the specifications of products are equal to each other, particularly eliminating the directional characteristics of the piles of the upper cloth double Wilton and the lower cloth double Wilton simultaneously woven in the same pattern and the difference in variable density and brightness on the pile surfaces due to an observing direction. SOLUTION: A doubled and twisted yarn 14 obtained by engaging and twisting a plurality of blended single yarns 11, 12 and 13 having the same downward twisted direction with an upward twisted yarn in the same direction as the downward twisted direction is used for a cut pile 15. The blended single yarns 11, 12 and 13 are mixed with 7 to 20 wt.% of thermally melted fibers and 80 to 93 wt.% of non-thermally melted fibers. Thus, the untwisting torque of the yarns twisted downward and the untwisting torque of the yarns twisted upward are exerted on the end of the cut pile 15 in the same direction, so that the cut pile is divided into a plurality of cut pile pieces 21, 22 and 23 for each of the blended single yarns. Since they are inclined at random, the difference in variable density and brightness on the surface of the cut pile due to an observing direction can be eliminated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a carpet having a cut pile, and more particularly, to a double face wilton carpet.

[0002]

2. Description of the Related Art Wilton carpets are woven by weaving pile yarns into a ground weave composed of ground warp and ground weft, and depending on the type of loom used, double face wilton carpets (hereinafter also referred to as double wiltons). ) And single-face Wilton carpets (hereinafter also referred to as single Wilton). In the process of simultaneously weaving the upper cloth and the lower cloth vertically and doublely, double Wilton connects the upper cloth and the lower cloth by weaving pile yarns, and then connects the connected pile yarns between the upper cloth and the lower cloth. Cut (so-called center cut), separated into upper cloth and lower cloth, and woven up and down two sheets at the same time. The center cut surface becomes the pile surface, and the upper cloth and lower cloth constitute the ground weave structure that locks the pile. Will do. Since the pile is formed by the center cut in this way, the pile of the double Wilton is a cut pile.

[0003] In the process of weaving a ground weave, a single wilton woven a pile yarn into a ground weave and also woven a wire, floated the pile yarn on the wire in a loop, and then pulled out the wire. Then, the loop-shaped pile yarns that have risen from the ground weave structure in a loop form a pile. When a knife is attached to the tip of the wire to be pulled out, the knife cuts the upper end of the loop-like pile yarn into a cut pile. On the other hand, if a wire having no knife is used, the loop pile yarn becomes a loop pile.

[0004]

The cut pile surface can be finished by shearing in both double and single Wilton. However, the double Wilton and the single Wilton, whose pile surfaces are formed by cut pile, have exactly the same product specifications such as the pile yarn material and thickness, pile density, ground yarn material and thickness, ground weave structure, etc. However, the degree of fluffing at the cross section at the tip of the cut pile, the difference in light and shade gloss of the pile surface, and the like are slightly different, and they can be distinguished by the appearance of the pile surface.

[0005] For example, a single Wilton cut pile forms a loop until cut by a wire, and its arrangement in the width direction is set in a straight line with the ground weave and the wire. When cutting the tip of the pile yarn, the upper end of the cut pile piece is slightly curved, leaving traces of the pulled wire slightly straight on the pile surface, and the loop When cutting the upper end of a pile yarn with a wire, cut pile pieces are made to face each other in pairs (a pair), and the cut cross section of the upper end of the pair of cut pile pieces facing each other is slightly ground. It becomes inclined with respect to the woven structure, and the cut section of the inclined two sets is arranged along the trace of the wire being pulled out, and a fine V-shaped groove is formed. Formation to. The shape of the curved cut pile piece, the trace of the straight wire drawn out, the cut cross section of the upper end of the inclined cut pile piece, and the slight V-shaped groove remain slightly on the pile surface even after shearing. .

[0006] On the other hand, in the double Wilton, the pile yarn is placed in a free state without being set by a wire, a ruler, or the like at an intermediate portion between the upper cloth and the lower cloth serving as a cut surface.
Since it is cut by a knife that moves parallel to the upper and lower cloths while standing upright at right angles to the upper and lower cloths, a cut pile that is divided into upper and lower cloths is formed, and those cuts are made. The cut cross section of the upper end of the pile is parallel to the upper cloth and lower cloth, which are the weaving structure, without inclining,
The pile surface of the double Wilton, which is woven at the top and bottom two at the same time, is smooth. For this reason, a single Wilton can be distinguished from a double Wilton based on the shape of the upper end of the cut pile, the arrangement of the cut piles in the width direction, the presence or absence of traces of wire extraction and V-shaped grooves, the degree of smoothness of the pile surface, and the like.

[0007] Similarly, two double wiletons which are cut into an upper cloth and a lower cloth and are simultaneously woven up and down are distinguished by slight differences in the appearance of the pile surface. In the following description, of the two double wiletons which are cut up and down and woven at the same time, the double wileton formed on the upper side is referred to as "upper double wilton", and the double wilton formed on the lower side is referred to as "lower cloth". Double Wilton ".

[0008] The pile has a direction inclined in a certain direction. Since this direction strongly appears in the cut pile,
The pile surface of the cut pile fabric looks darker or lighter depending on the viewing direction. The upper fabric double wilton and the lower fabric double wilton are woven with their pile surfaces facing each other up and down, so if they are arranged on the same plane, the inclination direction of those piles will be symmetrical left and right or back and forth. The pile surface has a difference in shading. Since the pile surface has a difference in shades of gloss, even if the composition depicts a pattern that is symmetrical in the front and back and left and right, it does not change according to the direction in which it is arranged, and the upper fabric double wilton and the lower fabric double wilton are lined up on the same floor and packed. In order to prevent them from being erroneously lined up side by side without being constructed, both are marked with identifications to identify them, and sometimes upper double wilton and lower double wilton. There are many cases in which one of them must be used and the other must be in stock.

[0009]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to prevent a difference in appearance on a pile surface due to a difference in manufacturing method even if the product specifications of a carpet are the same. It is an object of the present invention to eliminate the directionality of the piles of the upper cloth double wilton and the lower cloth double wilton, and to be able to lay them both side by side on the same floor.

[0010]

That is, a carpet according to the present invention comprises a plurality of blended single yarns 11 having the same bottom twist direction.
A cut pile 15 is formed by a ply-twisted yarn 14 obtained by twisting the 12 and 13 in the same direction as the lower twist direction by twisting the upper and lower yarns.
The heat fusible fiber is used for 20% by weight, and the heat fusible fiber is fused to another non-heat fusible fiber which accounts for 80 to 93% by weight of the blended single yarns 11, 12, and 13. This is a first feature.

A second feature of the carpet according to the present invention is that
In addition to the above-mentioned first feature, the heat-fusible fiber occupies 7 to 20% by weight of the blended single yarns 11, 12, and 13.
Wool fiber accounts for 80 to 93% by weight of 12.13.

A third feature of the carpet according to the present invention is that
In addition to any of the first and second features, the carpet is a double face Wilton carpet.

[0013]

DETAILED DESCRIPTION OF THE INVENTION Normal carpet piles have
Two to five single yarns of a ５5 meter count are twisted and used. According to the conventional carpet, blended single yarn 11.
When the thickness of 12.13 is 2-5 meters,
The number of times of priming is 150 to 250 times / m,
The number of times of twisting of the five twists is preferably set to 100 to 220 times / m, which is equal to or less than the number of times of lower twisting.

[0014]

According to the present invention (claim 1), the ply twist and the ply twist are in the same direction and the cut pile 15
Since the untwisting torque of the lower twist and the untwisting torque of the upper twist act in the same direction at the leading end 16, the mixed pile single yarn is separated into a plurality of cut pile pieces 21, 22, and 23. Since the non-heat fusible fibers of the cut pile pieces 21, 22, and 23 are joined to the fused heat fusible fibers, the ends 17, 18, and 19 of the cut pile pieces are ply-twisted. Depending on the untwisting torque, the fibers are not unwound and are maintained in a converged bottom-twist state. As described above, since the heat-fusible fibers are mixed in the blended single yarn, the respective blended single yarns of the ply twisted yarn 14 are also fused and joined, but the blending ratio is 20% by weight.
The bond strength of the heat-fusible fiber is as low as the following. Function, so that depending on the heat-fusible fiber, the tip 16
The separation into individual cut piles 21, 22 and 23 is not prevented.

[0015] Since the non-heat-fusible fibers of each cut pile piece to which the weak twisting untwisting torque acts are joined by the heat-fusible fibers, the spiral of the cut pile pieces twisted by the ply twist is formed. Shape crimps are less likely to disappear. On the other hand, since the blend ratio of the heat-fusible fibers is as low as 20% by weight or less, the non-heat-fusible fibers are not firmly joined by the heat-fusible fibers, and even if the heat-fusible fibers are mixed. The bulk of the cut pile pieces 21, 22, and 23 is not particularly reduced, and since they are blended single yarns consisting only of ply-twist without ply-twist, they become bulky by untwisting untwisting torque. Further, between the cut pile pieces 21, 22, and 23 forming a spiral, since they form a spiral and can expand and contract in the length direction of the cut pile piece, there is a slight difference due to the difference in expansion and contraction. A large difference in length and shading is generated, and the difference is uniformly and finely distributed over the entire pile surface.

For this reason, the surface of the carpet is maintained in a convoluted bottom twisted state by the heat-fusible fiber, and the tip of the cut pile piece 17.
18 and 19, and since it is set in a spiral shape, the inclination direction of the cut pile pieces 21, 22, and 23 becomes random, and a part of the spiral cut pile piece has a curved surface on the pile surface. Appears and shows whether the cut pile and loop pile of single yarn are mixed, and furthermore, the slight difference in length and shading between the cut pile pieces 21, 22, and 23 is evenly distributed over the entire pile surface. Because it is finely distributed,
The difference in shading of the pile surface depending on the viewing direction is eliminated.

In order to eliminate the difference in shading and gloss on the pile surface depending on the viewing direction, it is not necessary to use the twisted yarn 14 according to the present invention for all cut piles. Ordinary pile yarns may be used for the cut pile formed in a divided manner.

The curved surface of the spiral cut pile piece does not appear on the pile surface, and the tips 17, 18, and 19 of the cut pile piece do not appear.
In order to configure the pile surface only with the cut cross section, the pile density may be increased. However, even if the pile density is high and the curved surface of the cut pile piece does not appear, the cut cross section of the tip 17, 18, 19 of the cut pile piece appears in a random direction, so that a difference in shading on the pile surface occurs depending on the viewing direction. Never. In other words, according to the present invention, it is possible to eliminate the difference in shading and gloss on the pile surface depending on the viewing direction, and to obtain a carpet as if cut piles and loop piles were randomly mixed by adjusting the pile density. It is.

In order to maintain the converged bottom twist state at the tips 17, 18, and 19 of the cut pile pieces, and to set the spiral crimps attached to the cut pile pieces 21, 22, and 23 by the upper twist, it is necessary to use a heat-sealing property. While the fiber blending ratio is at least 7% by weight, the tip 16 of the cut pile 15 is separated into a plurality of cut pile pieces 21, 22, 23, and the cut pile pieces 21, 22, 23 are untwisted. In order to increase the bulk by the twisting torque, the blend ratio of the heat-fusible fiber is set to at most 20% by weight.

The helical crimp of the blended single yarn is set by fusing the heat-fusible fiber by heating in the dyeing process of the ply twisted yarn or heating in the carpet backing process. Therefore, the present invention (claim 2) is suitable for a case where wool fibers which cannot be set only by heating are used for a pile.

On the pile surface, the tip of the cut pile 15 is divided into a plurality of cut pile pieces 21, 22, and 23, and the inclination directions of the tips 17, 18, and 19 become random. Since a partially curved surface of the cut pile piece to be formed appears on the pile surface and no difference in shade of light and shade depending on the viewing direction occurs on the pile surface, the pile yarn 14 connecting the upper cloth 26 and the lower cloth 27 is separated by a knife 20 between them. Upper fabric double quilt 2 that is cut and woven at the same time
4 and the lower cloth double Wilton 25 are indistinguishable, and it is also possible to arrange them on the same floor for laying work, and it is possible to save the trouble of attaching an identification mark to distinguish them.

Conventionally, carpets in which cut piles and loop piles are mixed at random have been subjected to a shearing process on a pile surface whose entire surface is formed of a loop pile, and have long and short spots on a pile surface to be uniformly formed. According to the present invention (Claim 3), such a carpet can be woven without being subjected to the shaling treatment, and the loop pile can be woven. The present invention (Claim 3) is very advantageous for double Wilton because it can also be obtained by a double face Wilton carpet loom.

[Brief description of the drawings]

FIG. 1 is an enlarged perspective view of a pile of a carpet according to the present invention.

FIG. 2 is a side sectional view of a double face Wilton carpet loom of a carpet according to the present invention at a center cut position.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Blended single yarn 12 Blended single yarn 13 Blended single yarn 14 Twisted yarn (pile yarn) 15 Cut pile 16 Cut pile tip 17 Cut pile piece tip 18 Cut pile piece tip 19 Cut pile piece tip 20 Knife 21 Cut pile Piece 22 Cut pile piece 23 Cut pile piece 24 Upper cloth double Wilton 25 Lower cloth Double Wilton 26 Upper cloth 27 Lower cloth

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[Procedure amendment]

[Submission date] October 1, 1999 (1999.10.
1)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claims

[Correction method] Change

[Correction contents]

[Claims]

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0020

[Correction method] Change

[Correction contents]

The helical crimp of the blended single yarn is set by fusing the heat-fusible fiber by heating in the dyeing process of the ply twisted yarn or heating in the carpet backing process. Therefore, the present invention is suitable for a case where wool fibers that cannot be set only by heating are used for a pile.

[Procedure amendment 3]

[Document name to be amended] Statement

[Correction target item name] 0022

[Correction method] Change

[Correction contents]

Conventionally, carpets in which cut piles and loop piles are mixed at random have been subjected to a shearing process on a pile surface whose entire surface is formed of a loop pile, and have long and short spots on a pile surface to be uniformly formed. According to the present invention , such a carpet is produced by shaving the tip of a slightly long loop pile, but is not double-faced without being subjected to a shaling treatment and in which the loop pile cannot be woven. The present invention is very advantageous for double wilton since it can also be obtained by a loom.

Claims (3)

[Claims] 1. A ply-twisted yarn (14) obtained by twisting a plurality of blended single yarns (11, 12, 13) having the same under-twist direction by twisting them in the same direction as the under-twist direction. (15), and the blended single yarn (11.12)
The heat-fusible fiber is used in 7 to 20% by weight of the (13), and the heat-fusible fiber is a blended single yarn (11.12.1).
3) A carpet characterized by being fused to other non-heat-fusible fibers occupying 80 to 93% by weight. 2. The blended single yarn (11.
The heat-fusible fiber occupies 7 to 20% by weight of 12.13),
The carpet according to claim 1, characterized in that wool fibers occupy 80 to 93% by weight of the blended single yarn (11, 12, 13). 3. The carpet according to claim 1, wherein the carpet according to claim 1 is a double face Wilton carpet.