JP4074943B2 - Tile carpet finishing method. - Google Patents

Description

  The present invention relates to a tile carpet in which a backing layer is laminated on the back surface of a pile fabric.

It is known that a strong twisted yarn is used as a pile yarn, and the present inventor has developed a pile yarn (for example, patents) in which a twisted single yarn and a heat-fusible fiber mixed single yarn in which the lower twist and the upper twist are in the same direction are combined. And a pile yarn, which is a strong twisted yarn having a heat-fusible fiber, in which the lower twist and the upper twist are in the same direction, and disclosed in a patent publication (see, for example, Patent Document 2) .
A tiled carpet layered on the back of a tufted pile fabric using synthetic filament multifilament crimped yarn as the pile yarn, and the tile carpet cut to the required shape is humidified and heated to inflate the pile. It is known to eliminate gaps / grooves between butt joints generated between the edges of mating tile carpets (see, for example, Patent Document 3).
JP 2002-227056 A (Patent No. 3425668) JP 2000-070104 A (Patent No. 3051846) JP 2004-081283 A

  In the tile carpet using the pile fabric, the tip of the pile is cut off at the peripheral cut edge, and the fiber bulk density of the pile layer is increased by the cut amount between the tile carpet and the tile carpet applied by abutting each other. Rough gaps / grooves (hereinafter referred to as joint grooves) are easily formed.

  In the above-mentioned Patent Document 3, the fiber constituting the pile is crimped to make the pile bulky to make the joint groove inconspicuous. This method is a tile using a strong twisted yarn for the pile. Even if it is going to be applied to a carpet, in the case of a strong twisted yarn in which the twisted mountain is set and fixed, the crimping property of the fiber is suppressed and it cannot be expanded bulky. When the cut pile is cut into a cut pile, the untwisting torque acts, and when the constituent fibers are crimped and bulky, the untwisting torque further acts to disintegrate the twisted mountain. Therefore, there is no point in using the strong twist yarn for the pile.

  Therefore, an object of the present invention is to eliminate joint grooves of a tile carpet using a strong twisted yarn for a pile without impairing the strong twisted form of the pile.

In the tile carpet finishing method according to the present invention, the number of twists of a plurality of strands mainly composed of animal fibers such as cashmere and alpaca including wool fibers (hereinafter collectively referred to as animal hair fibers) is 150 times. The twisted yarns 11A, 11B, and 11C of at least 1 / m are twisted in the same direction as the twisting direction of the lower twist added to the strong twisted single yarn to form the pile yarn 12, The backing layer 14 is laminated on the back of the pile fabric in which the cut pile 13 is formed by the pile yarn, and the tile carpet 15 is formed by cutting into a required shape. Thereafter, the pile surface is humidified and heated, and the cut pile 13 is untwisted. The first feature is that the tile carpet is finished by generating torque.

The second feature of the tile carpet finishing method according to the present invention is that, in addition to the first feature described above, the pile root 16 is exposed on the back surface to form a pile fabric, and the back surface is subjected to raising treatment to increase animal hair. The point is that a felt layer 17 made of fibers is formed, and then the backing layer 14 is laminated.

A third feature of the tile carpet finishing method according to the present invention is that, in addition to any of the first and second features described above, among the plurality of strong twisted single yarns 11A, 11B, and 11C that constitute the pile yarn. The pile yarn 12 is configured by mixing heat-fusible fibers with at least one strongly twisted single yarn and fusing the heat-fusible fibers with animal hair fibers.

  According to the present invention (Claim 1), the animal hair fibers absorb and swell due to humidification heating, and the hydrogen bonds are dissociated and the fiber polymer structure is temporarily collapsed. The binding state between the yarns 11 and 11 becomes free, the strong twisted yarn (cut pile) 12 is untwisted, the tip of the pile piece 18 constituting the strong twisted single yarn 11 changes its direction irregularly, and the base of the pile fabric The thickness of the pile layer from the cloth (base) 19 to the pile surface (surface) is reduced, and the pile surface is expanded by that amount, and the tip 20 of the peripheral pile piece protrudes to the outside of the tile carpet 15 and is lined at the periphery. Along with the layer 14, the cut short pile pieces 28, 38 at the tip are obscured under the uncut long pile piece 18 at the tip 20. For this reason, when construction is performed with the periphery of the backing layer, which is the cutting opening, being performed, joint grooves are not formed on the pile surface, and the fine irregularities formed by irregularly changing the direction of the tip of the pile piece are continuous over the entire construction surface. In addition, a tile carpet can be obtained that looks as if the layed pile fabric was cut without cutting.

  According to the present invention (Claim 2), since the fibers 21 of the adjacent cut piles 13 and 13 are entangled with each other on the back surface of the pile fabric, the cut pile 13 is difficult to be unwound from the cutting opening (periphery), and the entanglement thereof. Since the fiber 21 forms the smooth felt layer 17, there is no need to laminate a thick backing layer, and a lightweight, easy-to-handle tile carpet with excellent durability can be obtained.

  According to the present invention (Claim 3), since the heat-fusible fiber is fused to the animal hair fiber, each pile piece is not dissolved by the humidification heating without eliminating the strong twist state of the strong twisted single yarn 11. A tile carpet excellent in wear resistance can be obtained by maintaining the bundled state as a strong twisted single yarn without the tip 20 of the hair being unwound.

  Although the untwisting torque is generated in the cut pile 13 by humidifying and heating the pile surface, the untwisting action is first generated between the multiple twisted single yarns 11 and 11 constituting the cut pile 13, and each strong twisted single yarn. The untwisting action between the animal hair fibers constituting the (pile piece) 11 occurs after the cut pile (strongly twisted yarn) 13 is untwisted and divided into a plurality of strongly twisted single yarns 11. Therefore, in order to maintain the strong twisted state of the plurality of pile pieces 18 constituting the cut pile 13 so that fine irregularities are formed on the pile surface, the twisted single yarn (pile piece) is untwisted. Then, it will be humidified and heated to such an extent that it does not open bulkyly, but in order to effectively carry out the present invention, the heat-fusible fiber is mixed with the strong twisted single yarn 11 as described above, or A chemical treatment that temporarily eliminates molecular bonds (for example, cystine bonds) other than hydrogen bonding of animal hair fibers is applied to the strong twisted single yarn 11, and in the humidified heat treatment of the pile surface, a strong twisted yarn (cut pile) 12 Only a plurality of strongly twisted single yarns (pile pieces) 11 are separated. The heat-fusible fiber may be composed only of a heat-fusible polymer or may have a core-sheath composite structure having a high-melting-point polymer as a core and a heat-fusible polymer as a sheath.

  In order to untwist only a strong twisted yarn (cut pile) and separate it into a plurality of strongly twisted single yarn (pile pieces) 11 without untwisting the strong twisted single yarn (pile piece) As disclosed in References 1 and 2, the twisting direction of the lower twist applied to the strong twisted single yarn and the twisting direction of the upper twist for twisting the plurality of strong twisted single yarns are set to the same direction. Alternatively, a pile yarn may be prepared by fixing and setting the twisted thread 22 of the twisted yarn.

  The fineness of the strongly twisted single yarn (pile piece) is 2 to 7 meters, and the number of twists is 150 times / m or more. The twisted number of the strong twisted yarn (cut pile) may be such that when the twisted yarn is untwisted, the unevenness of the ridges 22 remains in the strong twisted single yarn. What is necessary is just to make it comparable or less.

  In the present invention, “animal hair fiber is the main material” means that the animal hair fiber occupies 70% by weight or more of the strong twisted single yarn and maintains the strong twist state, or the tile carpet has antistatic and In order to impart flame resistance and the like, it means that heat-fusible fibers, conductive fibers, flameproof fibers, and the like can be mixed at a mixing rate of 30% by weight or less of the entire pile yarn.

The pile fabric can be formed by any of a tufted machine, a pile loom, and a pile knitting machine. However, when the felt layer 17 is formed by raising the back surface of the pile fabric, It is preferable to form a pile at the same time. More preferably, a pile fabric is woven and knitted in a double upper and lower direction by a double face pile loom (double Wilton, double moquette) or a double raschel warp knitting machine, and then the two piles are cut. Before separating into fabrics, pile yarns (strongly twisted yarns) exposed on the outer surface of the base fabric 19 are raised.
The raising can be performed by a needle cloth (raising) roll, needle punching, water punching (high pressure liquid flow), a tumbler or the like.

  The backing layer 14 is laminated by applying an adhesive, a vinyl chloride sol composition or other adhesive liquid resin composition, applying a heat-fusible resin, or attaching a base sheet such as a foam sheet, felt, or rubber sheet. It is done by combination.

It is side surface sectional drawing of the tile carpet before finishing which concerns on this invention, and is enlarging and enclosing a part in a circle. It is side surface sectional drawing of the tile carpet after finishing which concerns on this invention, and is enlarging and enclosing a part in a circle.

Explanation of symbols

11: Strongly twisted single yarn 12: Pile yarn (strongly twisted yarn)
13: Cut pile 14: Backing layer 15: Tile carpet 16: Root 17: Felt layer 18: Pile piece (long pile piece)
19: base fabric 20: tip of pile piece 21: fiber 22: twisted mountain 28: short pile piece 38: short pile piece

Claims (1)

Strongly twisted single yarn (11A / 11B / 11C) having a plurality of twists of 150 times / m or more, including at least one strongly twisted single yarn that is mainly composed of animal hair fibers and mixed with heat-fusible fibers Are twisted in the same direction as the twisting direction of the lower twist added to the strong twisted single yarn , the heat-fusible fiber is fused to the animal hair fiber, and the twisted yarn The pile (22) is fixedly set to form a pile yarn (12), and the backing layer (14) is laminated on the back surface of the pile fabric in which the cut pile (13) is formed by the pile yarn, and cut into a required shape. A tile carpet (15) is formed, and then the pile surface is humidified and heated to generate a twisting torque in the cut pile (13) to change the direction of the tip of the pile piece of the cut pile at the periphery of the tile carpet. tile to the pile piece Ru to protrude to the outside of the peripheral edge of the tile carpet Petto finishing method.

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