JPS6021730B2 - Method of manufacturing tile carpet - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of constructing carpet tiles, in which carpet tiles are cut into predetermined sizes and then installed by sequentially arranging them.

In recent years, tile carpets have become popular as floor carpets, which are made by adding weight and thickness to hair batting material using a hot melting substance, especially tar, and cutting them into predetermined sizes and arranging them one after another.

Such tile carpets have various advantages: they are easy to transport and install on site, they can be freely patterned using colors, and they are economical because they can be partially replaced if damaged. The tile carpet equipped with the heat-melting material layer as described above has a structure in which a loop material 2 is provided on the heat-melting material layer 1, as shown in Fig. 1, and a wide and long one is manufactured. It is formed by cutting the material into a certain size.

By the way, the loop material 2 provided on the heat-melting substance layer 1 is arranged in a straight line with certain intervals and pits, but in reality there are some errors in pitch and linear accuracy, and it is difficult to cut out the tile carpet. In some cases, the cutting line and the alignment direction of the loop material may not match exactly, and as shown in Fig. 1, the side green la of the tile carpet A is aligned with the loop material 2.
A wide portion lb having no loop material 1 is formed on the surface.

When such tile carpets A are laid closely side by side, at the abutting part of each carpet A, the wide part lb
In this case, rough sections of the loop material 2 occur, especially when wide sections of adjacent carpets correspond to each other, resulting in wide spacing between the loop materials, which significantly deteriorates the finished shape of the carpet installation. The disadvantage is that it makes you look unsightly.

Further, although tile carpets use a layer of a relatively heavy heat-melting substance such as tar, the thickness of the layer is uniform throughout, so there is a problem that it tends to roll up from the surrounding area when being laid.

Furthermore, since tile carpets are cut from long and wide pieces, depending on the cutting conditions, the root of the loop material may approach the cut edge, which weakens the strength of the loop material's adhesion to the heat-melting material layer. There is a problem in that it tends to fall off.

In order to prevent the loop material from falling off, for example,
As shown in Japanese Patent No. 126,729, it has been considered to heat and deform a portion of the periphery of the tile bed. As shown in FIGS. 5 and 6, the above-mentioned falling-off prevention method heats and presses the base fabric 3 portion of the loop village 2 at the peripheral edge of the tile carpet A with a heater 4, and only a portion of the surface side has a concave stepped portion 5. It was designed to be molded into

The above method is considered to improve the fixing strength of the loop material 2 because the root of the loop material 2 is attached to the base fabric 3 and a part of the hot melt material layer 1. There is no change in the distance X to the loop material 2; rather, only the outer portion of the loop material relative to the cut end surface is pushed inward, and the distance from the end surface to the loop material becomes wider.

In this way, partial heating deformation of only the upper part causes at least a part without loop material of only the recessed step 5 around it, and when a tile carpet is laid on the floor, the abutting part of each carpet will be at the recessed step. 5, the arrangement of the loop material 2 becomes rough and the abutting portion appears linear, which does not solve the above-mentioned problem. This invention was made to solve the above-mentioned drawbacks and problems, and the distance between the edge and the loop material around the surface is narrow, the finish at the time of installation is good, and it is possible to avoid the surroundings. It is an object of the present invention to provide a manufacturing method capable of manufacturing tile carpets that do not cause curling up.

The structure of the present invention is to heat the periphery of a carpet cut to a predetermined size, compress the entire thickness of the end face of the heat-melting material layer inward, and increase the density around the heat-melting material layer. The distance between the edge and the loop material is reduced.

Hereinafter, the present invention will be explained based on FIGS. 2 to 4 of the accompanying drawings. Tile carpet A is as shown in Figure 3.
It is constructed by providing a heat-melting material layer 13 on the back side of a base fabric 12 on which loop material 11 is provided, and is formed by cutting this into a predetermined size as shown in FIG.

In addition to coal tar, synthetic resins such as polyethylene and polypropylene can be used as the material for the heat-melting material layer 13, and various fibrous materials may be mixed therein if necessary. In addition, the loop material 11 was attached to the base fabric 12, but
For example, the lower end of the loop material may be fixed on the base fabric with an adhesive, or the lower end of the loop material may be directly embedded in the heat-melting material layer 13. A cut pile may be used, and the lower surface of the hot melt material layer 13 may be provided with another lining.

As described above, the heat-melting material layer 13 of the tile carpet A cut out to a predetermined size is heated along the length direction on each side of the four circumferential twill parts, and the periphery of the heat-melting material layer 13 is heated. soften.

Next, the end face of the four-circle weave of the heat-melting material layer 13 is pressed inward as shown in FIG. 4, and the density of the circumferential twill portion is increased by compressing it by a predetermined amount.

By the way, when producing a tile carpet with finished dimensions of 50 bows x 50 Q ribs, the material is cut out from a long raw material to a size of 502 skins x 502 sails, including the shrinkage allowance around the circumference.

Next, the periphery of the hot melt material layer 13 in this material is heated and softened to a width of 15 ribs from the edge green.

In this state, the entire thickness of the four peripheral end faces of the hot melt material layer 13 is pressed inward, for example, one side is compressed. The heat-softened portion of the heat-melting material layer 13 is compressed by the amount of compression, forming a high-density portion 13a.

High-density portion 13a formed by compressing the entire thickness
As shown in FIG. 4, this occurs in the heated portion inside the carpet tile A, and is slightly caused by the periphery of the hot melt material layer 14 due to escape due to compression.

That is, as shown in FIG. 4, the thickness T of the heat-melting substance layer 13 becomes slightly thicker in the frame shape, with the thickness T becoming thickness T' at the periphery, and the pitch P of the loop material 11 becomes the pitch in the high-density part. P', and the density of the loop material 11 increases.

As mentioned above, by compressing the surrounding area by one willow,
A tile carpet measuring 50 mounds x 50 mounds is completed. By compressing the periphery of the tile carpet, the distance between the edge green of the hot melt material layer 13 and the outermost loop material 11 is reduced, so that the gap between the edge and the loop material becomes wider. Even in such a case, it will be corrected narrowly by compression.

For example, the shield corner of loop material 11 is on the 2.5 side, and when the thread diameter is subtracted, the actual gap between the loops is 1.5
No matter what conditions the carpet material is cut against the loop material, the cut edge green and the loop material 11
The interval between the rising edge of and the rising edge of is on the 1.5 side.

However, if this continues, there will be a maximum of three widths of areas without loop material between the laid carpet tiles on both sides, and the abutting portions of the carpet tiles will be exposed from the surface.

On the other hand, when the surrounding green is compressed one by one as in this invention, there is a gap between the cutting edge and the rising edge of the loop material when cutting.
．． Even if there is a gap on the 5th side, this can be reduced to approximately half, so that the abutment part cannot be exposed from above when it is laid.

In addition, the high-density portion 13a has a slightly thicker wall thickness, has higher strength due to hardening, and is also larger in weight, so the adhesion to the surrounding floor surface when laying is improved.
The surrounding area will no longer warp.

Note that if the entire heat-melting material layer 13 is heated, the amount of shrinkage will be absorbed by the entire layer when compressed, and partial shrinkage of only the end twill portions will not be achieved.

As described above, according to the present invention, since it has the above configuration, it has the following effects. '1} In a force bed in which a loop material is provided on a heat-melting material layer, the entire peripheral edge of the heat-melting material layer is heated and compressed to increase its density, so that the distance from the edge to the loop material is reduced. decreases as the carpet is compressed, the gap between the loop materials at the abutting portions of adjacent carpets becomes narrower, a laid state in which the abutting portions are not exposed from the surface is obtained, and a carpet with a beautiful finish can be provided. {21 The high-density portion provided around the heat-melting material layer can improve the strength and weight of the surrounding area, and can provide a tile carpet that will not warp or turn over when it is laid.

'31 Since the entire thickness of the heat-melting material layer is compressed around the periphery, the surrounding mass increases and the thickness also becomes slightly thicker, making it possible to produce a carpet with good adhesion to the floor surface. .

[Brief explanation of drawings]

Fig. 1 is a plan view showing a conventional tile carpet, Fig. 2 is a plan view of a tile carpet produced by the method of the present invention, Fig. 3 is an enlarged longitudinal cross-sectional view showing the tile carpet before heating and pressurizing processing, and Fig. FIG. 4 is a longitudinal sectional view showing the same as above subjected to heating and pressing, and FIGS. 5 and 6 are explanations showing an example of heating and pressing of a subordinate carpet. 11... Loop material, 12... Base fabric, 13... Heat-melting material layer. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6

Claims (1)

[Claims] 1. Cut out a tile carpet of a desired size by cutting a carpet configured by providing a loop material on a layer of hot melting material, and apply heat and tile carpet to the entire thickness of the peripheral end surface of the layer of hot melting material in this tile carpet. By applying pressure toward the inside of the carpet and compressing the entire thickness of the periphery of the hot melt material layer into the inside of the carpet tile, the thickness around the carpet tile is increased in a frame shape, and the surrounding loop material is placed. A method for producing a carpet tile, characterized by making it dense.