JPH01210530A - Filter for drain port - Google Patents

Abstract

PURPOSE:To make it easy to load a bag to a drain port by forming the bag having meshed fiber coarser to the end with the long fiber non-woven fabric as a unit under a flange section and applying a repellent treatment to the bag. CONSTITUTION:A bag 1 constituted of a top edge section 4, side section 5 and bottom section 6 is formed of the long fiber non-woven fabric constituted of the synthetic fiber under a plane and ring-like flange section 2. The fabric has meshed fiber coarser toward the bottom section from side section 5 of the bag 1. A waterproofing agent is applied to the bag 1 to execute a water repellent treatment.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a drain filter, and particularly to a drain filter for separating garbage, which is attached to a sink in a kitchen or a drain in a bathroom. This relates to mouth filters.

[Conventional technology]

Normally, the drain of a sink installed in a home kitchen, etc.
In order to prevent drainage pipes from becoming clogged due to the inflow of cooking scraps, tea dregs, etc., a filter consisting of a net-shaped basket made of metal, synthetic resin, etc. is installed. Brush-shaped filters like this are easily clogged with dust,
Furthermore, since it is difficult to remove, it is difficult to ensure drainage while maintaining the filtration effect. Therefore, in order to easily remove the dust accumulated in such a filter, a drainage port filter made of a plastic bag made of synthetic resin, a Japanese paper-like bag, or the like is attached in advance to the filter.

[Problem to be solved by the invention]

The conventional drain filter mentioned above uses a simple three-sided sealed bag or a triangular bag with an opening at the top, but in order to attach such a filter to a filter, it is necessary to Take out the container from the drain, put the drain filter into the filter, bend its upper end to the outer edge of the brush-shaped filter, and make sure that the upper edge of the folded filter does not deviate from the outer edge of the filter. This required a complicated operation in that the device had to be attached to the drain at the same time.

An object of the present invention is to solve the above-mentioned problems of the prior art, and to provide a drain filter that can be easily attached to a drain or a stationary filter attached to the drain, and has good dust separation and water permeability. It's about doing.

[Means to solve the problem]

In order to achieve the above object, the present invention includes a flange portion at the upper edge integrally formed of a long-fiber nonwoven fabric made of synthetic fibers, and a flange portion provided below the flange portion, the fiber structure of which becomes coarser toward the tip. The bag is characterized in that the bag is treated to be water repellent.

By providing a flange portion at the upper edge and providing a bag below the flange portion, the fiber structure of which becomes coarser toward the tip, the flange portion and the portion of the bag body near the flange portion where the fiber structure is denser. Since the entire shape of this drain filter is maintained, it can be easily installed by simply placing it on the drain or brush-shaped filter placed at the drain.
The flange portion is fixed by coming into contact with the edge of the drain port or the like. Further, since the fiber structure becomes coarser toward the tip of the bag, the dust in the waste water is effectively separated, and the waste water from which the dust has been separated can pass through the filter as is. Furthermore, by applying a water-repellent treatment to this drain port filter, it will not get wet even if it comes into contact with water, and the bag will not get wet and come into close contact with the middle of the drain port, etc., making it easy to attach.

In the present invention, as the long-fiber nonwoven fabric made of synthetic fibers, undrawn or semi-drawn synthetic fibers such as polyester, polyolefin, and nylon synthetic fibers are used, for example. It is preferable that the long fiber nonwoven fabric made of synthetic fibers can be integrally molded by heating and can be stretched 1.5 times or more in at least one of the vertical and horizontal directions. By stretching the maximum stretched part of the molded product to 1.5 times or more compared to before stretching, the water permeability of the filter is improved.

In the present invention, the integral molding method involves, for example, sandwiching and fixing the long fiber nonwoven fabric made of the synthetic fibers between two metal plates with a circular cutout in the center, and maintaining the same at a predetermined temperature.
Another example is a hot forming press method in which a hemispherical metal body that fits into a circular hole in the metal plate is pressed to a predetermined depth while also being maintained at a predetermined temperature. In this case, the part sandwiched between the two metal plates becomes the flange part of the drain filter, and the part expanded by pressing the hemispherical metal body becomes the net-like bag.

In the present invention, the drain filter obtained as described above is treated to be water repellent by applying a water repellent.

Its water repellency is J l5-L-1096, 6-26-1
(Water absorption, water absorption rate) It is preferable to adjust the permeation rate of water beads in method A (dropping method) to be 5 seconds or more. Paraffin-based, silicon-based, or fluorine-based water repellents are used. For example, as a paraffin-based water repellent, paraffin wax with a melting point of 60 to 104°C is used based on the weight of the filter (hereinafter the same). 0.5wt%
As mentioned above, preferably 1 to 3 wt%, 0.1 to 0.1 wt% or more, preferably 0.2 to 0.5 wt% of methylhydrodiene polysiloxane alone or a mixture with dimethyl polysiloxane as the silicone type, and polyvinylidene fluoride as the fluorine type. 0.01w'L% or more, preferably 0.05
It is applied so that ~0.3 wt% is deposited. Among these, it is particularly preferable to use a fluorine-based water repellent because it can impart oil repellency as well as water repellency. Note that the water repellent may be incorporated into the fibers in advance. If the amount of water repellent applied is too small, the water repellency will be poor, making it impossible to smoothly attach it to a wet drain, etc., and the strength will decrease. Moreover, if the amount of adhesion is too large, the water repellent will be wasted, which is not preferable.

〔Example〕

FIG. 1 is a side view showing an embodiment of the drain filter of the present invention, and FIG. 2 is a plan view of FIG. 1.

In the figure, a bag 1 consisting of an upper edge 4, a side 5, and a bottom 6 is provided below the circumference of a flat ring-shaped flange 2. The upper edge portion 4 near the flange portion 2 has a small expansion and a fine fiber structure. On the other hand, from the side part 5 to the bottom part 6, the elongation gradually increases and the fiber structure becomes coarser. In addition, 3 is a pair of grip parts provided on the flange part 2. In such a configuration, the drain filter can be placed, for example, on a brush-shaped filter on the sink, or if this filter is not installed, it can be placed directly on the drain port, and the flange portion 2 is separately prepared. The filter is attached to a drain by pressing it with a rubber gasket having an opening of the same size as the bag 1, and the filter filters out dirt and debris in the drain.

Next, the present invention will be explained in more detail using specific examples.

Polyethylene terephthalate resin is melted and 1. A long fiber web was created at a spinning speed of 1800 m/min using compressed air, and this web was passed between a pair of heated rolls to make a long fiber nonwoven fabric.
Heat treatment was performed for 60 seconds in a felt drum at °C.

The obtained long fiber nonwoven fabric had a table denier of about 10 d (denier), an average basis weight of 50 g/m, and a breaking elongation of 230% in a hot atmosphere of 100°C. Next, a lattice pattern with 108 intervals was written on the nonwoven fabric, and it was fixed between two aluminum plates having holes with a diameter of 112 holes, and while preheating to 130°C with hot air, , depth 170nm+, tip diameter 90m
The hemispherical aluminum mold No. 5 was pushed into the 112 m diameter hole of the aluminum plate up to 140 ms from the tip, and after the hot air was stopped, the hemispherical metal fitting was returned to its original position and the aluminum plate was removed. The obtained molded product is 2
The bag body has a depth of 1351I11 and has a flange portion which is sandwiched between two aluminum plates. After shaping the flange of this bag to a predetermined size, apply Rain Guard (manufactured by Lion Co., Ltd.), a spray-type fluorine-based water repellent, to an amount of 0.07w based on the weight of the filter.
It was coated in an amount of t% and air-dried to obtain a drain filter.

The grid pattern on the bottom of the drain filter is 2.1 times larger in one direction and 1.0 times larger in the other direction than before molding. It was stretched 8 times, and the permeation speed of water beads according to JIS-L-1096, 6-26-1, method A was 30 seconds or more.According to this example, the glass transition point or higher, the conversion point Below,
Since the long-fiber nonwoven fabric made of synthetic fibers with an elongation of 100% or more is integrally molded, the flange portion 2 and the upper edge portion 4 of the bag body 1 have a shape-retaining property with little elongation, and have a brush-like shape. It can be easily installed by simply placing it on top of a filter, etc. Furthermore, since it has water and oil repellency, it can be attached extremely easily to a brush-shaped filter or drain that is wet with water. Further, according to this embodiment, the side portions 5 and bottom portion 6 of the bag body 1 are stretched at least 1.5 times as much as the flange portion 2, and the fiber structure of the nonwoven fabric is coarse, so that garbage can be easily separated. It has good water permeability as well as properties.

〔Effect of the invention〕

According to the present invention, it is easy to attach to a drain port, has good water permeability, and can efficiently filter and separate dust and the like in waste water.

[Brief explanation of the drawing]

FIG. 1 is a side view of a drain filter showing an embodiment of the present invention, and FIG. 2 is a plan view of FIG. 1. ■...Bag body, 2...Flange part, 3...Gripping part,
4... Upper edge, 5 side, 6... Bottom. Agent Patent Attorney Takeshi Kawakita

Claims (1)

[Claims] (1) Consisting of an upper edge flange integrally formed from a long fiber nonwoven fabric made of synthetic fibers, and a bag provided below the flange, the fiber structure of which becomes coarser toward the tip, and A drain filter characterized in that the bag body is treated to be water repellent.