JPS59135023A - Tile carpet - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a tile carpet, and more particularly to a tile carpet that has excellent dimensional stability, is compatible with floor substrates, and can be coated on flat cables.

When renovating a room, especially when installing carpet in a room with a large area, you may try to use a long carpet with a width of 2 meters or more as is.

However, it was difficult to bring in long items because they got stuck in the entrances and elevator cages, so they were cut into short pieces and brought in.
This work was complicated.

Furthermore, once a long carpet has been installed, interior renovation becomes extensive and difficult, as furniture must be moved outside during renovation.

As a solution to these problems, a set-up type carpet tile was promoted.

On the other hand, in recent years, an increasing number of offices are using rooms with few pillars and walls as partitions. Such offices actively use carpet tiles to facilitate rearrangement of the room.

However, conventional tile carpets lacked dimensional stability, and when replaced with tile carpets, the wiring of electrical equipment was exposed, resulting in safety and aesthetic defects.

In recent years, flat cables have begun to be used for indoor wiring, and when the flat cables are installed on indoor floors, it is said that the optimal flooring material for covering the flat cables is carpet tiles, which can be placed on the floor. However, conventionally known tile carpets are inferior in various physical properties including dimensional stability, and cannot be used on flat cables for power lines.

The present invention overcomes the above problems and provides a tile carpet that can be used not only in general offices, stores, and homes, but also on flat cables for data power transmission, telephone use, and electric power. It has a backing layer consisting of an upper layer filled with 0 to 800 parts by weight of filler per ioo parts by weight of polyvinyl chloride and a lower layer filled with 300 to 800 parts by weight of filler per 100 parts by weight of polyvinyl chloride, and The gist of the present invention is a tile carpet characterized in that at least one of a nonwoven fabric, a woven fabric, and a composite of a nonwoven fabric and a woven fabric is interposed in the backing layer.

This will be explained below based on the drawings.

FIGS. 1 and 2 are cross-sectional views of the tile carpet of the present invention. In FIG. 1, 1 is a surface fiber layer, and as illustrated, a cut pile is also formed by a rug. Surface fiber layer 1 is made of nylon 0 polyester, polypropylene,
Animal hair such as acrylic or wool is used, and if desired, conductive fibers may be applied to the base fabric or pile yarn. 2A is the upper layer of the backing material, 2B is the lower layer, 8 is the woven fabric, and 4 is the nonwoven fabric.

The upper layer 2A of the backing material is preferably formed by paste processing with a soft composition of 100 parts by weight of polyvinyl chloride (PVC) (the following parts are parts by weight), 25 to 120 parts of a plasticizer, and 0 to 300 parts of a filler. Excellent pile gripping power and anti-fuzz properties. The lower layer 2B contains 40 to 120 parts of a plasticizer and 300 to 800 parts of a filler per 100 parts of PVC. The lower layer 2B may be formed by a paste method or a calendar method.

The filler filled in the upper layer 2A and the lower layer 2B may be any filler such as calcium carbonate, talc, etc., but it is preferable that the particle size is relatively coarse.
It is preferable to treat with a cationic activator, anionic activator, etc.

Woven fabric 8 and nonwoven fabric 4 are interposed within the PVC layer. It is preferable that the woven fabric 8 has a coarse mesh in the form of a net. Glass fibers, vinylon fibers, polyester fibers, and aromatic polyamide fibers are applicable to the woven fabric 3 and the nonwoven fabric 4, but glass fiber is most preferable, and it is desirable that the basis weight is 20 to 1501β. The boundary between the upper layer 2A and the lower layer 2B is formed at approximately the same position as the nonwoven fabric 4.

The backing layer 5 is formed by gelling the PVC layer. The backing layer 5 preferably has a thickness of 1 to 5 layers.

As an example of a method for manufacturing a tile carpet, (2) a PVC paste for the lower layer is applied to a removable base material and the nonwoven fabric 4 is impregnated with it.

(2) Next, apply PVC paste for the upper layer, and bury the coarse glass net in the paste.

1. A surface fiber layer is placed on the upper layer paste, and the upper and lower layer pastes are heated to gel and cut into predetermined dimensions.

In FIG. 2, 1 is a surface fiber layer, 2A@2B are upper and lower layers, 6 is a composite of woven fabric and nonwoven fabric, and 7 is a backing layer. Composite 6 is glass fiber/vinylon/polyester ψ
Aromatic polyamide fibers are applicable, but glass fibers are most preferred and preferably have a basis weight of 50 to 3002[beta].

The composite body 6 is formed at approximately the same position as the boundary between the upper and lower backing layers 2A and 2B.

The above-mentioned upper and lower layers 2A and 2B of the backing layer may be formed to have any thickness, but it is preferable that the boundary thereof be above the center of the backing layer 7.

The 1 to 5 PVC layers heated and gelled become the backing layer 7.

The tile carpet of this invention has the general properties required of ordinary tile carpets, namely ease of installation, partial repairability, good compatibility with the base, and durability, as well as the upper layer of the backing layer containing a low filler. This gives it not only flexibility but also pile gripping power and pile fuzz prevention properties, and the performance that satisfies all the conditions when the lower layer is coated on a flat cable, namely dimensional stability, slip resistance, heat resistance, and construction. Excellent in nature.

Dimensional stability is obtained by using a composite of woven and nonwoven fabrics and by incorporating a relatively large amount of filler (300 to 800 parts) in the lower layer.

Anti-slip property refers to the ability of the tile carpet itself to not easily slide on the base surface on which it is installed.Since adhesion between the installation surface and the tile carpet is required, the backing layer must have a sufficiently high specific gravity and be soft. However, the tile carpet of the present invention exhibits sufficient slip resistance. Since the carpet tiles have good anti-slip properties, they will not be deformed by sliding and colliding with each other, resulting in improved dimensional stability.

Also, since the backing layer is made of PVC, the angle is 60~80°.
C, it does not melt like asphalt and has satisfactory heat resistance.

More preferably, the tile carpet of the present invention has a calcium carbonate content of 800 to 800% in the PVC layer below the backing layer.
Since it contains a high amount of filler and a high filling amount, it provides a suitable stiffness.When installing, you can make a cut from the surface fiber side to the boundary between the woven fabric/nonwoven fabric, the composite of both, and the backing layer, and then bend it to create a 2-inch shape. It can be divided into two parts,
Labor can be greatly reduced in construction work near walls, etc., and efficiency is improved. On the other hand, carpet tiles made of low-filler asphalt or other stiff backing layers must be cut from top to bottom of the backing layer, which can lead to fatigue and efficiency differences, especially when installed in large rooms. becomes significant.

In addition, in the tile carpet of the present application, by using a pile fabric with good compressive elasticity such as nylon for the surface fiber layer,
The raised portion that occurs when the flat cable is bent to change direction can be hidden, and even when walking on the carpet, the influence of the bent portion of the flat cable under the tile carpet can be prevented.

According to the present invention, the backing layer is composed of an upper layer with less filler and a lower layer with more filler, and at least one of woven fabric, nonwoven fabric, and a composite of woven fabric and nonwoven fabric is interposed in the lining layer. A tile carpet with the above performance can be obtained.

Furthermore, the tile carpet of the present invention is suitable as a surface covering material for a floor heating panel.

Examples are shown below.

Example 1 Compounding Front and backing layer upper layer Backing layer lower layer PVC paste resin 70 (parts) 70
(Part) PVC blend resin 80
30 Plasticizer (Dop), too t
o.

Calcium carbonate 1504 250 Rice 250 Stabilizer 22 Pigment 1 Rice Untreated Fatty acid treatment Apply the PVC paste containing the lower layer of the backing layer in the recipe on the previous page to a thickness of 1 ma on the release cloth. /rrf glass non-woven fabric was immersed, and the upper layer compounded PVC paste was added to tm.
Apply a thick layer of glass mesh fabric of 50g β to the above PV.
After placing it on the C paste, bury it, and then place the nylon cut pile tufted fabric on top of it.
It was heated to gel. The obtained sheet has 5.0 rIn per side.
A tile carpet of the present invention was obtained by punching out squares.

Example 2: PVC paste for the lower layer of Example 1 was pre-gelled on a release cloth using a wire heater, then PvC paste for the upper layer of Example 1 was applied to a thickness of 1 layer, and the same tufted fabric as in Example 1 was applied on top of it. Place and heat to gel at 180°C, 50cm on each side.
Carpet tiles were obtained by punching out squares.

Comparative Example 1 5 parts of non-grade polypropylene per 100 parts of asphalt
The same surface fiber layer as in Example 1 was laminated on the backing layer, which was filled with 100 parts of calcium carbonate and 100 parts of calcium carbonate and a thin non-woven fabric of polypropylene was pressed onto the unbonded surface, and was punched out in the same manner as in Example 1 to obtain a tile carpet. Ta.

Comparative Example 2 PVC paste resin 70 parts PvC blend resin 30 Plasticizer (D OP )
90 tr Calcium carbonate 100 Stabilizer 2I face
Material l〃PV of the above composition
C paste was applied at 2 mJ1 onto a release cloth to form a surface fiber layer similar to that in Example 1, heated to gel at 180°C, and punched out in the same manner as in Example to obtain a tile carpet.

Examples 1 and 2 and Comparative Examples 1 and 2 obtained above were tested under the following conditions.

The results are shown in Table 1.

Dimensional stability: After being left at 20°C for 24 hours, heated at 80°C for 6 hours,
Further, after being left at 20°C for 24 hours, the dimensional change rate was measured. The results are shown in chi.

A load of 20Kg was placed on the anti-slip tile carpet, and one end of the tile carpet was pulled to measure the frictional force when it started to move. (Unit: b) Heat Resistance Heating on a 60°C hot plate for 24 hours and checking for deformation.

Workability Examples 1 and 2 were cut into two by cutting from the surface to the boundary between the upper and lower backing layers. In the comparative example, the backing layer was cut and bent to approximately the same position.

Visual tests were conducted for heat resistance and workability tests.

Table 1 〇 - - Good Stability was not good.

Regarding heat resistance, Comparative Example 1 was particularly poor and melted and softened in 6000024 hours.

In terms of workability, Examples 1 and 2 have good bendability because the lower layer of the backing layer contains a large amount of filler.
I was able to separate it accurately just by folding it in half.

Comparative Examples 1 and 2 could only be applied by cutting the entire backing layer with a knife from the beginning.

[Brief explanation of the drawing]

Figures 1 and 2 are cross-sectional views of the tile carpet of the present invention. 1 is a surface fiber layer, 2A is an upper part of the lining material, 2B is a lower part of the lining material, 8 is a woven fabric, 4 is a nonwoven fabric, and 6 is a woven fabric-nonwoven fabric composite. Applicant for the above-mentioned pieces Toyo Lino Reum Co., Ltd. Drawing No. 3 (no change in content) Figure 1 Figure 2 Procedural amendment band (voluntary) April 11, 1981 Commissioner of the Patent Office Kazuo Wakasugi Tono Tile Carpet Higashiarioka, Itami City 125 5th Street

Claims (1)

[Claims] 1. Consists of a surface fiber layer, an upper layer filled with 0 to 800 parts by weight of filler per 100 parts by weight of polyvinyl chloride, and a lower layer filled with 800 to 800 parts by weight of filler per 100 parts by weight of polyvinyl chloride. A tile carpet characterized in that it has a backing layer, and at least one of a nonwoven fabric, a woven fabric, and a composite of a nonwoven fabric and a woven fabric is interposed in the backing material.