JPH0133005Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a dust control matte-base assembly that has excellent static elimination properties and dust control properties. A dust control mat-base assembly comprising a dust control mat consisting of a backing for fixing threads to a base fabric, which is removably held in a mat support housing portion of a mat support base made of an elastomer polymer, wherein the backing is made of a solid conductive material. The present invention relates to a dust control mat-base assembly, characterized in that it is made of synthetic rubber latex blended with the mat and has a bent surface having a larger area than the mat support/accommodation portion.

Conventionally, in order to prevent dust from adhering to the soles of shoes and entering the room, dust control mats have been placed at the entrances and exits of rooms. One type of dust control mat is one in which the mat is detachably attached to a mat support base, which is easy to wash and recycle because only the mat can be removed and washed or recycled. It is easy to replace mats with recycled mats, including transporting them, and since the mats are supported by a heavy base, they will not move even if you walk on them or rub them with the soles of your shoes. Because of these advantages, it has come to be widely used in shops, restaurants, offices, etc.

In this type of pine, the pile threads of the pine are impregnated with a liquid dust adsorbent (dust-adsorbing oil, etc.), which exhibits excellent dust trapping properties, but there are problems with the migration of the oil onto the floor surface. From the viewpoint of deterioration in texture due to oil impregnation, it is desired to develop pine that does not undergo treatment with such a dust adsorbent and yet has dust trapping properties.

According to the present invention, while the mat is insulated from the earth or floor by the mat support base made of an elastomer polymer, the static electricity of pedestrians on the mat is effectively eliminated, and as a result, the static electricity on footwear, etc. Provided is a pine-base assembly that can effectively remove and collect dust attached to the pine.

Another object of the present invention is to provide a pine-base assembly that provides excellent dust control performance without treating the pine pile threads with a dust-adsorbing oil or the like.

Still another object of the present invention is to provide a mat-base assembly which can be placed at the entrance of a room or the like to simultaneously prevent dust from entering the room and prevent electric shock to the human body when entering or exiting the room.

Still another object of the present invention is to provide a mat that can consistently provide stable static neutralizing properties and dust control properties even when the mat removed from the mat support base is repeatedly subjected to washing treatment many times. - providing a base assembly;

The present invention will be explained in detail based on the accompanying drawings.

The mat-base assembly of the present invention, as shown in FIG. The mat 1 is removably fixed to the base 2 by engagement with hook-shaped or mushroom-shaped locking elements 5 fixed to the corners of the mat support accommodating portion 4 of the base 2.

The mat support base 2 is composed of, for example, a frame-shaped peripheral part 6 and a sheet-shaped mat support housing part 4 surrounded by the peripheral part 6. The peripheral part 6 and the mat support housing part 4 are made of an elastomer polymer. It is formed in one piece. Suitable examples of elastomeric polymers include:
Soft vinyl chloride resin, polyurethane, natural rubber,
These include styrene-butadiene rubber (SBR) and nitrile-butadiene rubber (NBR).

In FIG. 2, which shows an enlarged view of the mat used in the present invention, the mat 1 includes a base fabric 7, a pile yarn 8 tufted to the base fabric, and backing 9 applied to fix the pile yarn to the base fabric. The main feature is that this backing 9 is made of synthetic rubber latex mixed with a solid conductive agent, and that this backing 9 forms a bent surface 10 having a larger area than the aforementioned mat support housing section. This is an important feature of the invention.

That is, in the present invention, due to the above-mentioned structural features, even though the mat 1 is insulated from the earth or floor by the base 2 made of an elastomer polymer, there is a large capacitance area on the back surface of the mat. As shown in the example below, excellent static neutralization effect and associated dust control properties are obtained, and since a solid conductive agent is blended into the synthetic rubber latex that makes up the backing, it has excellent washing resistance. It is recognized that it can be obtained.

Solid conductive agents include powder conductive agents such as conductive carbon black and various metal powders; flake conductive agents such as metal aluminum flakes; and fibrous conductive agents such as carbon fibers, metal fibers, and other conductive fibers. Or they are used in combination of two or more.

As synthetic rubber latex for backing,
In addition to the aforementioned SBR and NBR latexes, all latexes used for forming this type of backing, such as chloroprene rubber latex, butyl rubber latex, and urethane rubber latex, can be used.
The amount of the solid conductive agent in the latex varies depending on the desired static elimination effect, but it is preferably 0.05 to 2 parts by weight, particularly 0.1 to 1 part by weight, per 100 parts by weight of solid content of the latex.

To manufacture this mat, pile yarn made of synthetic fiber is tufted onto a base fabric made of woven fabric, non-woven fabric, gauze, etc., and synthetic rubber latex mixed with a solid conductive agent is applied as a backing to the back side. After that, if necessary, the tips of the tufted threads may be trimmed. At this time, by adjusting the amount of latex applied to the base fabric, the tufted portions become mountains, the non-tufted portions become valleys, and the surface of the backing layer becomes a curved surface with a large area. The coating amount of the backing layer is 100 to 1000 g/m ² as solid content,
In particular, a range of 300 to 700 g/m ² is desirable for the purposes of the present invention.

Further, the base fabric and the pile yarn may be made of synthetic fibers that have been subjected to conductive treatment, which are known per se, or may be made of untreated synthetic fibers. Nylon fibers, polyester fibers, acrylic fibers, etc. are used as synthetic fibers for pile yarn.
A crimped yarn is particularly desirable in terms of dust-trapping properties. It should be understood that even if the conductive treated fibers are mixed into the pile yarn, the amount thereof may be as small as 0.2 to 2% by weight.

In the mat-base assembly of the present invention, while the mat is insulated from the earth or floor by the mat support base, static electricity from pedestrians walking on the mat is effectively eliminated, and as a result, static electricity does not adhere to footwear or other objects. Dust easily transfers to the pine pile yarn and is collected, and even though it is a so-called dry pine, excellent static neutralization and dust control performance can be obtained.

In addition, since the mat and the mat support base are separated, various operations such as collecting, recycling, and installing the used mat are easy, and since the conductive agent is dispersed and fixed during backing, for example, 30 times Excellent static elimination properties and dust control properties are maintained even after washing for many hours.

Furthermore, by placing this mat-base assembly at the entrance of a room, etc., it prevents dust from entering the room, and also effectively removes static electricity when pedestrians are charged by the rug in the room. This effectively prevents electric shocks from coming into contact with door knobs, etc.

The effects of the present invention will be explained with the following example.

The base fabric is a plain woven fabric made of polyethylene terephthalate fibers, and conductive treated nylon 6/
A multifilament twisted yarn having a weight ratio of 1/100 to ordinary nylon was tufted under the following conditions.

Stitch (per inch) 6 Gauge (per inch) 35/5 Tufting pile 3200 denier NBR latex containing 1.0% by weight of conductive metallic fibers per solid content of latex.
A coating weight of 500 g/m ² was applied to the back of the base fabric and cured at 140°C.

The thus formed pine was attached to a pine support base made of soft vinyl chloride resin (the thickness of the pine support accommodating part was 3 mm), and the following tests were conducted.
For comparison, the product is the same except that no conductive agent is added.
The same process was carried out using a pine with a backing made of NBR latex.

Dust trapping ability The two types of pine base assemblies mentioned above were laid out in front of the reception desk of a hotel in Nakanoshima, Osaka, and 300
When the amount of dust captured after a person passed was measured, it was 5.0g for the device of the present invention and 4.5g for the comparative device.

Static neutralization property Approximately minus when walking on normal ground
When a pedestrian charged to 13KV stepped on the two types of pine mentioned above and measured the amount of charge, the comparison one had a voltage of -4.0KV and the one of the present invention had a voltage of -2.6KV, indicating that no electric shock occurred. significantly suppressed.

[Brief explanation of drawings]

FIG. 1 is a perspective view of the mat-base assembly of the present invention, and FIG. 2 is an enlarged cross-sectional view of the mat shown in FIG. 1. Reference number 1 is dust control mat, 2
is a mat support base, 3 is a fiber loop element, and 4 is a fiber loop element.
5 indicates a mat support housing portion, 5 indicates a locking element, 6 indicates a peripheral portion, 7 indicates a base fabric, 8 indicates a pile thread, and 9 indicates a backing.

Claims (1)

[Claims for Utility Model Registration] (1) A dust control mat consisting of a base fabric, a pile yarn tufted to the base fabric, and a backing that fixes the pile yarn to the base fabric is attached to a mat support base made of an elastomer polymer. In the dust control mat base assembly which is detachably held in the mat support housing part, the backing is made of synthetic rubber latex containing a solid conductive agent and forms a curved surface having a larger area than the mat support housing part. A dust control pine base assembly characterized by: (2) The assembly according to claim 1, wherein the solid conductive agent is a powder, flake, or fibrous conductive agent. (3) The assembly according to claim 1 or 2, wherein the solid conductive agent is blended in an amount of 0.05 to 2 parts by weight per 100 parts by weight of the solid content of the synthetic rubber latex.