JPH0810295Y2 - Tile carpet - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tile carpet having no warp and excellent form stability.

[0002]

2. Description of the Related Art Tile carpets are easier to construct than ordinary carpets, and by combining shapes and color tones, it is easy to obtain carpet floors of various colors and patterns, and repairs and partial maintenance are also easy. There are many advantages such as that, and the demand for them is rapidly increasing in recent years.

[0003] Various improvements have been made to meet various demands as demand grows. For example, OA
Tile carpets for offices where the equipment is used daily are provided with anti-static properties to prevent malfunction of the computer and at the same time dust-free, and are used for floors with high walking frequency. As tile carpets that meet the various demands, the density of the piles is increased to prevent the piles from sagging or being damaged, or the height of the piles is controlled to meet various demands and further increase the demand.

[0004]

[Problems to be Solved by the Invention] However, the tile carpet has a peculiar problem, that is, the carpet warps toward the pile side. This warpage causes the parts to be lifted, which makes it difficult to work in a uniform manner, which is a major problem when installing tile carpets. The warp is likely to occur even when the tile carpet soiled by use is washed, or after the steps such as steaming, washing, and drying after printing.

Further, glass non-woven fabric is generally used as a reinforcing material for the backing layer, but due to its manufacturing method, the glass fibers are easily arranged in the warp direction, so that the strength in the weft direction is weak and the weft is also used in a tile carpet as a composite material. Directional strength is relatively insufficient.

An object of the present invention is to solve the above problems and to provide a tile carpet having a large strength in both the longitudinal and longitudinal directions and no warp.

[0007]

In order to achieve the above object, the present invention comprises a fiber surface pile layer made of a pile cloth in which pile yarns are planted in a base cloth, a polyvinyl chloride resin and a filler. And a backing layer, wherein the backing layer is sequentially laminated on the lower surface of the fiber surface pile layer in the order of the first vinyl chloride layer, the non-woven fabric reinforcing material, and the second vinyl chloride layer. A tile carpet characterized in that a net-like or mesh-like sheet in which heat-shrinkable synthetic fiber yarns are used as warp yarns and glass fiber yarns are used as weft yarns is integrally provided in the vinyl dichloride layer. To do.

The present invention will be described in detail below with reference to the drawings.

FIG. 1 is a cross-sectional view showing a model of an example of the tile carpet of the present invention. Reference numeral 1 is a pile base fabric, and pile yarns 2 are planted in the pile base fabric 1 to form a fiber pile layer. are doing. Further, 3 is a backing layer made of polyvinyl chloride resin, a filler, etc., the first vinyl chloride layer 4 is directly formed on the back surface of the base fabric 1, and the second vinyl chloride layer 5 is further provided on the lower surface thereof with a nonwoven fabric reinforcing material 5 interposed therebetween. The vinyl chloride layer 6 is lined. Further, in the present invention, a net-shaped or mesh-shaped sheet 7 is integrally embedded in the second vinyl chloride layer 6 in parallel with the nonwoven fabric reinforcing material 5.

The sheet 7 is used for the purpose of preventing warpage and increasing strength of the present invention. As shown in FIG. 2, heat shrinkable synthetic fiber yarns are arranged as warp yarns 8 and glass as weft yarns 9 is provided. It consists of a net-like or mesh-like sheet on which fiber threads are arranged.

Materials used for the pile base cloth 1 include inorganic fibers, natural fibers, synthetic fibers and the like, and woven fabrics and non-woven fabrics which are used alone or in combination, or tape woven fabrics made of synthetic resin film are generally used. What is used as the base fabric of the pile carpet is used, and similarly, the pile yarn 2 is also a yarn obtained by an appropriate means such as blending, drawing and twisting of natural fiber or synthetic fiber yarn. .

A backing layer 3 is integrally fixed to the back surface of the pile layer composed of the pile base cloth 1 and the pile threads 2. In the backing layer 3, the pile threads 2 are formed from the pile base cloth 1. In addition to having the function of preventing falling out, the tile carpet is given an appropriate thickness to give its own weight to the tile carpet to improve the morphological stability.

The characteristics of the backing layer 3 in the present invention include:
A sheet 7 composed of a warp 8 made of heat-shrinkable synthetic fiber yarn and a weft 9 made of glass fiber yarn, which are embedded in the backing layer 3.
And when forming the backing layer 3, a heat-shrinkable synthetic fiber thread such as a highly shrinkable polyester fiber thread is used as the warp thread 8,
A net or mesh sheet 7 made of glass fiber threads as weft threads 9 is positioned below the non-woven fabric reinforcing material 5 to apply and fill the backing layer forming material.
It is formed by heat treatment in the state of being embedded in
A sheet 7 formed of a heat-shrinkable synthetic fiber yarn 6 such as a polyester fiber yarn that is shrunk by heat treatment such as heating is fixed in a state in which the tile carpet is attracted in the direction opposite to the pile layer formation surface. Therefore, it is possible to prevent the warp caused by the shrinkage of the pile yarn 2.

In the present invention, as the heat-shrinkable synthetic fiber yarn used for the warp 8 of the sheet 7, it is necessary to use a synthetic fiber yarn having latent shrinkability such as the high-shrinkable polyester fiber yarn as described above. It is necessary that the shrinkage rate at 130 ° C. is 3% or more.

The use of such heat-shrinkable synthetic fiber yarns as the warp yarns 8 of the sheet 7 prevents tension in the traveling direction from being easily applied during carpet production and prevents the warp direction from easily occurring in the warp direction. When used in the weft direction, the effect of preventing reverse warp is poor. Further, in this case, when the polyester fiber yarn is used as the heat-shrinkable synthetic fiber yarn, since the elongation of the fiber is small, the shape stability after heat-shrinkage is excellent, which is preferable. On the other hand, when the glass fiber yarn is used as the weft yarn 9 of the sheet 7, the glass fibers constituting the glass fiber nonwoven fabric, which is usually used as the nonwoven fabric reinforcing material, are generally arranged in the warp direction. The purpose is to cover the point that the strength in the weft direction is small.

The net-like or mesh-like sheet used for the sheet 7 may have the same shape or the different history, and the thread interval may be about 2 to 10 mm pitch depending on the diameter of the fiber thread used. , And more preferably 3 to 4 mm pitch. If the diameter of the fiber yarn used is too thin, the shrinking force is weak, and if it is too thick or the density of the woven fabric is too small, the backing layer 3 may cause layer separation, which is not preferable.

[0017]

EXAMPLES The present invention will be described in detail below based on examples. Tile carpets with various nets inserted were prepared under the following conditions, and warpage and elongation amount by caster chair test were measured and compared.

(1) Pile Layer Using nylon 6 filament yarn (3.15d / 120f),
1/10 inch gauge, 10 stitches / inch, pile length 4.0mm, tufting with a weight of 620g / m ² ,
Wins dyed was used.

(2) Lining First vinyl chloride resin agent Second vinyl chloride resin agent PVC paste copolymer 100 parts by weight 100 parts by weight Plasticizer (dioctyl phthalate) 95 90 Calcium carbonate 300 350 350 Stabilizer 1 1 Pigment 1 1 Under the carpet pile layer, a first vinyl chloride resin layer, a glass non-woven fabric reinforcing material, and a second vinyl chloride resin layer are sequentially laminated under a conventional method. A sheet in which a polyester fiber yarn was used as a warp and a glass fiber yarn was used as a weft in the vinyl dichloride resin layer, and a polyester mesh alone, a glass mesh alone, and both a polyester mesh and a glass mesh were respectively inserted as comparative examples. A sample was prepared and heat-processed.

(3) Evaluation Method Each sample was evaluated by warpage and elongation test by a caster chair test. Warp: Having the four corners of the tile carpet, the warp direction and warp degree were compared. Caster chair test A 90 kg load based on DNI54324 and elongation in the longitudinal direction after 5,000 rotations were measured.

(4) Result

[0022]

[Table 1]

[0023]

As is apparent from Table 1, the tile carpet of the present invention causes the warp in the direction opposite to the pile surface due to the heat-shrinkable synthetic fiber yarn in which the backing layer has contracted, and the tile side of the tile carpet. At the same time, it is possible to prevent the warpage that occurs in the above, and at the same time, the strength in the weft direction is increased by the glass fiber used as the weft, and the strength becomes very high in combination with the strength in the warp direction by the glass fiber nonwoven fabric. Further, when manufacturing a conventional tile carpet, a polyester mesh is used under the non-woven fabric reinforcement material of the backing layer to give a reverse warp,
Further, it is also known to use a glass mesh on the upper side of the non-woven fabric reinforcing material for the purpose of strengthening the strength of the backing layer, but the present invention can replace the effect of the two meshes with a single net. The effect is great in terms of easiness and cost reduction.

[Brief description of drawings]

FIG. 1 is a schematic cross-sectional view showing an example of a tile carpet of the present invention.

FIG. 2 is a perspective view of a sheet used in the tile carpet of the present invention.

[Explanation of symbols]

 1 Pile Base Fabric 2 Pile Yarn 3 Backing Layer 4 First Vinyl Chloride Layer 5 Nonwoven Reinforcing Material 6 Second Vinyl Chloride Layer 7 Sheet 8 Warp 9 (Comprising Heat-Shrinkable Synthetic Fiber Yarn) Weft (Comprising Glass Fiber Yarn) Weft

Claims (1)

[Scope of utility model registration request] 1. A tile carpet comprising a fiber surface pile layer made of a pile cloth in which pile yarns are planted in a base cloth, and a backing layer made of a polyvinyl chloride resin, a filler and the like, wherein the backing layer is The first vinyl chloride layer, the non-woven fabric reinforcing material, and the second vinyl chloride layer are sequentially laminated on the lower surface of the fiber surface pile layer, and the second vinyl chloride layer is made of a heat-shrinkable synthetic fiber yarn. A tile carpet in which a net-like or mesh-like sheet using glass fiber threads as wefts is integrally provided.