JPH03297415A - Floor material and its manufacture - Google Patents

Abstract

PURPOSE:To obtain a floor material to facilitate guiding blind persons in a room by forming a design including the parts holding tuft or pile as maintaining its natural condition (projections), and the parts holding it in a squeezed condition (recesses). CONSTITUTION:As a foundation cloth, a synthetic or natural textile material used conventionally as the foundation cloth of a carpet or a carpet tile can be used as it is. The degree of heating to form recess parts is changed depending on the component material of tuft or pile, and the pressure is made normally 10 to 60kg/cm<2> when the pressing time is 10 seconds. Normally, after a heating and a pressure are applied, a cold press (the pressure is at the same level as the heating and the pressurizing) is carried out to set surely. Furthermore, in order to prevent the pile in the recesses from restoring with the passage of time, the heating and the pressure are applied at the temperature at the melting point of the textile or higher, or at the softening point of the textile or higher, so as to mutually fuse the textiles. Consequently, even in a wide room such as in a hotel and in a thereafter, the blind persons can walk safely.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to carpets or carpet tiles.

[Prior art]

Conventionally, in carpets or carpet tiles that have a tuft or pile surface, crushing of the tufts or piles has been extremely discouraged, and measures have been taken to prevent the tufts or piles from being crushed during use. In reality, research is focused on what kind of weaving method to use, what kind of fiber material to choose, and what kind of post-processing to perform.

Therefore, there are many ways to create patterns on carpets or carpet tiles with tufted or piled surfaces.
This was done by changing the color of the fibers forming the tuft or pile.

In addition, there are outdoor tiles made of rubber or inorganic materials that guide the feet of blind people.
The idea of installing this as an indoor carpet or carpet tile has not yet existed.

〔the purpose〕

The object of the present invention is to relate to a new method for creating a pattern on a carpet or carpet tile with a tufted or piled surface, and on a carpet or carpet tile with the pattern obtained thereby.

Another object of the invention relates to a textured carpet or carpet tile for guiding blind people.

〔composition〕

The first aspect of the present invention is that a pattern is formed by a part (convex part) that holds the tuft or pile in its original texture and a part (concave part) that holds the tuft or pile in a crushed state. This invention relates to a tufted or piled carpet or carpet tile.

A second aspect of the present invention is that the tufted or piled carpet or carpet tile according to claim 1 is heated and pressurized under conditions sufficient to heat set only the recessed portion of the tufted or piled carpet. Regarding the manufacturing method.

The third aspect of the present invention is that a pattern for guiding the blind is formed by a portion (convex portion) that holds the tuft or pile as it is and a portion (concave portion) that holds the tuft or pile in a crushed state. This invention relates to a tufted or piled carpet or carpet tile for guides for the blind, characterized in that:

The material constituting the tuft or pile portion is preferably synthetic fiber from the viewpoint of heat setting. Preferred synthetic fibers include polypropylene, polyamide, polyacrylonitrile, polyester, and the like.

As the base fabric, synthetic or natural fiber materials conventionally used as base fabrics for carpets or carpet tiles can be used as they are.

Although the backing material is not necessary, conventionally used materials such as polyvinyl chloride can be used.

The degree of heating for forming the recesses varies depending on the constituent material of the tuft or pile, but if the pressing time is 10 seconds, the pressure is usually 10 to 60 kg/a, preferably 20 kg/a.
〜40kg/a&.

Usually, after heating and pressing, it is preferable to perform cold pressing (the pressure is about the same as that during heating and pressing) to ensure setting.

(Margins below) Relationship between pressing conditions and unevennessFurthermore, from the perspective of ensuring the set, the pile in the recessed area recovers over time and the difference between the recessed area and the convex area decreases or disappears completely, and the effect of forming the recessed area In order to prevent the concave portion from disappearing, it is preferable that the concave portion has the following configuration.

First, when forming the recess, heat and pressure is applied at a temperature higher than the melting point or softening point of the fibers constituting the pile to fuse the fibers together to form the recess, or as a second configuration, the recess is formed. A synthetic resin is applied to the desired area separately from the pile, and the pile is pressed and crushed, and the piles in the recess are coated with the synthetic resin (which may also be a composition).
It may also be fixed to form a recess.

This synthetic resin (composition) may be in the form of a sheet, film, liquid, or powder. Furthermore, the following methods can be employed as examples of methods for applying this synthetic resin to piles.

In the case of sheets or powder, the synthetic resin is applied to the entire surface of the carpet in advance, and the concave parts are formed by heating and pressure, and then the synthetic resin remaining in the convex parts is removed.In the case of liquid, synthetic resin is applied to the mold. Each method is effective in that it is applied and transferred to the pile side during hot pressing. Examples of synthetic resins for this purpose include polyolefin-based, polyester-based, acrylic-based, polyamide-based, polystyrene-based, polyvinyl chloride-based synthetic resins, and compositions thereof.

Generally, it is desirable that the height difference between the concave portion and the convex portion be large.

If an attempt is made to increase the height difference, depending on the thickness of the carpet, the convex portion (non-pressure portion) will swell upward, and a concave portion will be created on the lower surface. This phenomenon is usually called bleed-through. This kind of embossed carpet has a large embossment difference on the top, but since the convex part has a concave part (indentation) on the bottom surface, the convex part gets crushed by the walking load etc. during use, and the difference in the convexity becomes large. It's gone. Therefore, in such a case, by filling the concave part on the back side of the convex part with a synthetic resin (composition) and integrating it, this problem can be prevented and the carpet can be made with a large difference in unevenness, so it is even better. It becomes desirable.

〔effect〕

ADVANTAGE OF THE INVENTION According to the present invention, it was possible to provide a carpet or carpet tile with a new aesthetic appearance and texture.

Further, by providing the carpet or carpet tile for guides for blind people of the present invention, it is possible for blind people to walk safely even in large rooms such as hotels and theaters.

Claims (1)

[Claims] 1. By a part (convex part) that holds the tuft or pile in its original state or in a state close to it (convex part) and a part (concave part) that holds the tuft or pile in a crushed state. A tufted or piled carpet or carpet tile characterized by the formation of a pattern. 2. The method for producing a tufted or piled carpet or carpet tile according to claim 1, wherein only the recessed portion of the tufted or piled carpet is heated and pressurized under conditions sufficient to heat set it. 3. A pattern for guiding the blind is formed by the part that holds the tuft or pile as it is or in a similar state (convex part) and the part that holds the tuft or pile in a crushed state (concave part) A tufted or piled carpet or carpet tile for blind guides, characterized by: