JP2019171247A - Non-woven filter - Google Patents

Abstract

To provide a direct attachment-type non-woven filter, which allows a peel-off paper to be easily peeled off.SOLUTION: A non-woven filter is attached to a plastic spacer of an air-conditioning cloth fan, which can be easily attached to and detached from the spacer. An infeed or a cut line, which allows a peel-off paper superimposed on a filter main body to be easily peeled off when the filter is directly attached to the spacer as a fan support material, is formed in the non-woven filter main body. In particular, a cut line as a cutting part is formed in a predetermined length, through a non-cutting part, in a small protrusion part in an ear shape protruded from the filter main body. This allows a part of the pel-off paper and further the whole of the paper to be extremely easily peeled off from the indeed provided in a small protruding piece (an ear).SELECTED DRAWING: Figure 1

Description

  The present invention relates to a nonwoven fabric filter, for example, a nonwoven fabric filter used by being attached to a case of an electric fan mounted on a jacket.

Conventionally, a filter described in Patent Document 1, for example, has been known as a filter used by being attached to a ventilation port. This product removes dirt from outside air and pollen that cause allergies from the ventilation port by attaching a filter with adhesive to the indoor side of the ventilation port on the wall of the house. This is a seal-like air filter that can be used. A filter that sufficiently adsorbs dirt is a disposable air filter that can be easily removed from a ventilation opening.
Specifically, a gauze-like material used for an air purifier or the like is processed according to the shape of the ventilation port, and a weakly viscous adhesive is applied to attach it to the ventilation port. Use an air filter with an adhesive applied to the indoor side wall of a ventilation port of a house. Remove and discard after use.

Utility Model Registration No. 3062814

However, the air filter of Patent Document 1 has a configuration in which an adhesive is applied to gauze and directly adhered to the ventilation opening of the wall surface, and therefore does not have release paper, and is extremely inconvenient in handling such as storage and transportation. Had the problem.
In addition, a filter in which a bag-shaped filter is placed on the ventilation opening frame instead of the pasting type has been known. However, this requires a mounting frame and has a disadvantage that it is not easy to use.

  Therefore, as a result of diligent research, the inventor put the release paper on the back surface of the non-woven filter main body via an adhesive, and provides a cut at the outer peripheral edge of the main body, so that the release paper can be easily removed from the cut. The present invention was completed by finding that the main body can be directly attached to the ventilation port forming material.

  That is, this invention aims at providing the nonwoven fabric filter which can be directly affixed only by peeling off a release paper, and can peel off this release paper easily from a nonwoven fabric filter material.

  The invention according to claim 1 is a non-woven fabric filter comprising a sheet-like non-woven fabric filter body, and a release paper layered on one surface of the filter body with an adhesive. A non-woven fabric filter is formed in the outer peripheral edge portion, extending from the outer peripheral edge toward the center of the filter main body and having a cut having a predetermined length for cutting at least the release paper.

The nonwoven fabric filter has a configuration in which an adhesive is applied to one surface (front surface or back surface) of a nonwoven fabric filter body, and release paper (release paper) is overlapped and stacked via the adhesive.
The non-woven fabric filter body means a sheet-like one such as a thin paper or a flat one having a predetermined area. In this case, the non-woven fabric filter main body has an area and a shape corresponding to the size of the fan, for example, an electric fan with a built-in jacket. The shape may be a square shape (quadrangle) or a round shape (circular shape) corresponding to the application.
The non-woven fabric here refers to a sheet-like material in which fibers are entangled without being woven. Non-woven fabric refers to fabric made by bonding or intertwining fibers by thermal, mechanical or chemical action. The manufacturing method etc. do not ask here.
The release paper has, for example, the same shape as the filter body and has a predetermined thickness, and is adhered to and adhered to one surface of the filter body (nonwoven fabric) via an adhesive. A commercially available product can be used as the release paper.
A cut is formed in the outer peripheral edge portion of the filter body. For example, a cut can be formed in a protruding portion protruding from a part of the outer peripheral edge.
The cut is set to a predetermined length extending, for example, linearly from the outer peripheral edge toward the center of the main body. In addition, the cut line penetrates from the front surface to the back surface in the laminate of the release paper and the main body. The filter body and release paper are cut. In this case, at least the release paper is cut. That is, even when the thickness of the nonwoven fabric is large, at least the release paper needs to have a cut (cut).

The cut line can be formed so as to extend from the outer peripheral edge of the projection by a predetermined length by a predetermined length toward the radial inward starting from a position radially inward. Or when the projection part is not formed, it can also be cut and formed by a predetermined length from the inner position to the inside in the radial direction from the outer peripheral edge of the filter body through the non-cutting part. That is, when there is a protruding portion, only a slight length from the outer edge of the protruding portion is not cut, and there is an extra length portion (non-cut portion) without a cut. This is the same even when the protrusion is not provided, which means that the cut is not extended to the outer edge.
Note that the cut line may be linear or gently curved, and the length thereof is arbitrary, but it needs to be long enough to be pinched with a finger and peeled off.
The cut can also be formed by perforations. The cut extends toward the center of the circle when the filter body is a perfect circle. If the protrusion is semicircular, it goes to the center of the circle.
Further, the number of cuts is not limited to one. For example, when a circular filter body is used, the protrusions may be provided on the opposite side of the circumferential direction 180 degrees apart in the circumferential direction, and a cut may be formed in each. The cut can also be formed by, for example, two cutting lines parallel to the protrusion.
In addition, about a projection part, a semicircle or a rectangle may be sufficient. In the case of a rectangular protrusion, the cut line is preferably extended toward the center of the main body.

The non-woven fabric filter is attached to, for example, an air inlet port portion of an electric fan. It can be directly attached to the casing which is the cover of the electric fan. In addition to the electric fan, it can be attached so as to cover the air vent on the air intake portion of the air conditioner or the air vent wall not having the electric fan. It can also be set at the air intake of a PC cooling fan.
Furthermore, the present invention can be applied not only to an air filter but also to a filter that filters water, for example. For example, it does not prevent application as a drain filter.

  In addition, the electric fan includes a case where it is attached to a jacket or a case where it is attached to a helmet or a hat. It can also be applied as a filter for removing dust, pollen and the like of an electric fan built in a work jacket commercially available as a so-called air-conditioning suit.

The invention according to claim 2 is a non-woven fabric filter comprising a sheet-like non-woven fabric filter body, and a release paper layered on one surface of the filter body via an adhesive. A part of the outer peripheral edge is formed with a protrusion protruding from the outer peripheral edge. The protrusion extends from the outer peripheral edge toward the center, and is formed of a non-woven fabric having a predetermined length that penetrates from the front surface to the back surface. It is a filter.
The cut is formed at least in the protruding portion, and does not prevent the cut from extending from the protruding portion and being provided in the main body. The cut is at least penetrating the front and back surfaces of the release paper, that is, cutting the release paper. Although it is preferable to cut also about a nonwoven fabric main body, even if it cuts only a release paper, it shall be contained in the extension of this invention.

According to a third aspect of the present invention, the cut extends from the outer peripheral edge of the filter body or the protrusion by a predetermined length starting from the radial inward position by a predetermined length toward the radial inward. It is a nonwoven fabric filter of Claim 1 or Claim 2.
The break starts not from the outer peripheral edge but from a slightly inward position of the outer peripheral edge leaving an uncut portion at the outer peripheral edge.
In the procedure for peeling the release paper from the filter body, hold the filter body so that the release paper is on the near side of the cut, break the release paper and the filter body together from this cut, and cut the cut to the outer periphery Extend. As a result, a sufficiently long cut is formed at the outer peripheral edge of the filter body. Furthermore, the release paper is separated (partially peeled off) from the filter main body by simultaneously pressing the right side and the left side of the cut in different directions, that is, by pressing the right side of the cut and pulling the left side. The entire release paper can be peeled cleanly from the non-woven filter main body by picking and peeling the release paper partially peeled.
In addition, in the manufacture of a non-woven fabric filter, an adhesive is sprayed on the back surface of a non-woven fabric manufactured in a large area, for example, in a roll shape, and a release paper is laminated and adhered on the spray surface. And it cuts and manufactures by pressing the release paper and nonwoven fabric main body which were united into a predetermined shape. In this press, the protrusion and the cut can be formed simultaneously. That is, there is no increase in the number of steps from the conventional manufacturing process.

The invention according to claim 4 is the nonwoven fabric filter according to any one of claims 1 to 3, wherein the nonwoven fabric filter is attached to an air suction port portion of an electric fan.
The non-woven fabric filter can be arranged on an electric fan (in this case, a concept including a fan), for example, an air inlet portion of a small fan built in various devices, an indoor side of a ventilation fan, or an indoor side of a range hood. About the nonwoven fabric filter main body, the fabric weight, a magnitude | size, thickness, etc. are designed according to those uses.

The invention described in claim 5 is the nonwoven fabric filter according to claim 4, wherein the electric fan is attached to a jacket.
It can be used for a filter for an electric fan with a built-in air-conditioning suit. In order to remove dust, pollen, etc., the removal / blocking performance of the nonwoven fabric can be enhanced. The filter body made of nonwoven fabric (such as air permeability) shall be designed according to the application.

According to each invention of Claims 1-5, the release paper laminated | stacked by sticking together with the sheet-like nonwoven fabric filter main body can be peeled off very easily from this cut. As a result, the filter main body can be easily adhered (attached) to, for example, the air inlet port portion. It is possible to provide a non-woven fabric filter that is dramatically improved in usability.
In particular, by forming a protrusion on a part of the outer peripheral edge of the filter main body and disposing the cut in the protrusion, the release operation of the release paper is further simplified.
In addition, since the cut line is formed to extend slightly inward from the outer peripheral edge starting from the radial inward position, usually the release paper does not easily peel off from the filter body. By this work, a small cut can be made larger, and the workability when peeling the release paper can be further enhanced.

  According to these inventions, one surface of the pressure-sensitive adhesive can be easily adhered to a device wall surface or the like with a non-woven filter body. The workability can be improved. Moreover, it is not necessary to use a double-sided tape, other adhesives, a magnet to be attached, a planar filter, or the like, which contributes to cost reduction. Moreover, the trouble which arrange | positions and covers rubber | gum on the edge of a nonwoven fabric filter main body can also be eliminated.

It is the top view (a) and partial side sectional view (b) which show the filter made from a nonwoven fabric concerning Example 1 of this invention. It is the enlarged view (a) which shows the small projection part of the nonwoven fabric filter which concerns on Example 1 of this invention, and the fragmentary figure (b) of the nonwoven fabric filter when there is no small projection part. It is a fragmentary figure which shows the usage example of the filter made from a nonwoven fabric which concerns on Example 1 of this invention.

  Embodiments of the present invention will be specifically described below with reference to the drawings.

  1-3, 10 shows a nonwoven fabric filter. This nonwoven fabric filter 10 is an example used as a filter for an air-conditioning clothing fan. Therefore, the nonwoven fabric filter 10 has a true circular nonwoven fabric filter body 11 having a thickness of 1.5 to 3 mm and a diameter of about 10 cm, and the back surface of the filter body 11 was sprayed. The release paper 12 having the same size and shape is laminated and pasted via an adhesive. The filter body 11 is formed with a semicircular protrusion 13 projecting from a part of a substantially circular outer peripheral edge.

  The protrusion 13 is formed with a cut 14 having a predetermined length extending in the radial direction at the center thereof. As shown in FIG. 2A, the cut 14 has a predetermined length C toward the center of the perfect circle in the radial direction by an extra length portion (non-cut portion) 15 having a predetermined length from the outer peripheral edge of the protrusion 13. Only formed. The cut line 14 is formed in a shape that cuts through the nonwoven fabric filter body 11 and release paper 12 and penetrates the front and back surfaces of the laminate of the filter body and release paper. In the figure, a is the length of the extra length portion (non-cut portion) 15, b is the distance between the starting point of the cut 14 in the semicircular protrusion 13 and the center of the protrusion, and c is the radial direction of the cut 14. The extending length is indicated by d, and the lateral width of the protrusion 13 is indicated. Incidentally, the length of the extra length portion 15 is preferably 0.5 mm to 1.0 mm. The length c of the cut 14 is 5 mm, and the distance b from the start end of the cut 14 to the center of the protrusion 13 is also 10 mm. The radius e of the protrusion 13 is 10.5 to 11 mm. Further, the protruding width of the protruding portion 13 (the outer peripheral length of the portion protruding from the perfect circle) d is about 20 mm.

Since the length of the extra length portion 15 on the extension line of the cut line is about 0.5 mm while the cut line 14 has a length of 5 mm, the nonwoven fabric breaks immediately at the protrusion 13 of the nonwoven fabric body 14. Instead of being peeled off from the release paper 12, the excess length portion 15 is broken thereafter. That is, the release paper 12 is easily peeled off from the main body nonwoven fabric.
FIG. 2 (b) shows a case where the cut line 14a is formed in the true circular nonwoven fabric body 11 in which no protrusion is formed. Also in this case, the cut line 14 extends in the radial direction, and the laminated body is cut up and down, and an uncut long portion is provided with a length of, for example, about 0.5 mm between the start edge of the cut line and the outer periphery of the perfect circle. It has been. Other configurations are the same.

The nonwoven fabric body 14 used here is made of polyester / modaacrylic fibers, but also other inorganic fibers such as rock wool and glass, natural fibers such as cotton and hemp, rayon, nylon, ester, and vinylon.・ Synthetic fibers such as vinyl chloride may be used. As a filter that particularly requires flame retardancy and non-flammability, modacrylic, flame retardant rayon, vinylon ester, and carbon fiber are used. In order to use it as a filter for air-conditioning clothing fans this time, considering the elasticity in the thickness direction and use in a place where fire is used, a mixed fiber of polyester and modacrylic was used.
Weight of non-woven filter body 11, 20~100g / ^{m 2,} particularly as 50 g / ^{m 2.}
Further, as the pressure-sensitive adhesive used, an acrylic ester resin pressure-sensitive adhesive that adheres lightly to the resin molded product of the air-conditioning clothing fan and has an adhesive strength that does not drop off was used. The amount of resin in this case is 5 to 20 g / ^{m 2,} preferably between 10 g / ^{m 2.}
In addition, although there exist a printing method, an impregnation method, a transfer method etc. as an adhesion method to the nonwoven fabric, the adhesive agent was apply | coated to the back surface of the nonwoven fabric main body 11 by the spray method this time in order to ensure air permeability.

As a manufacturing method of this non-woven fabric filter, an adhesive is attached to the back surface of a single non-woven fabric (for example, a roll-shaped non-woven fabric) by a spray method. The reason for the spray is that the breathability of the nonwoven fabric is not impaired. Next, the release paper was laminated on the entire back surface of the nonwoven fabric sheet by laminating a predetermined release paper having the same width on the adhesive-coated surface (laminate). Further, the laminated filter body / release paper is pressed into a predetermined shape, that is, a shape in which a protrusion is formed on a part of the outer periphery of the true circle, and a cut 14 is formed at a predetermined position in the protrusion 13. To do.
Through this process, the nonwoven fabric filter 10 is manufactured.

A procedure for peeling the release paper 12 from the main nonwoven fabric 11 from the protrusion 13 will be described with reference to FIG. As shown in this figure, the protrusion 13 is pinched with the right finger and the right half is pushed, and at the same time the left half is pulled forward with the left finger. As a result, the extra length portion 15 is torn and broken while the release paper 14 is peeled off from the nonwoven fabric 11.
Then, a part of the release paper 14 of the peeled part is pinched and the entire release paper 12 is sequentially peeled from the nonwoven fabric which is the filter body 11. This operation becomes extremely easy, and anyone can easily peel off the release paper 12 quickly.
The filter main body 11 from which the release paper 12 has been peeled off is adhered to the bone-like case (plastic spacer) surrounding the fan of the air-conditioning clothing by the adhesive. It can be easily attached to the intake port.

As described above, the non-woven fabric filter 10 according to this embodiment is circular and has the semicircular protrusion 13 protruding from the outer peripheral edge, and the protrusion 13 is formed with a cut 14 extending in the radial direction. ing. The protrusion 13 is a semicircular shape having a radius of about 10 mm, and the cut 14 is not cut (not cut) from the peripheral edge (end), leaving an extra length 15 of about 0.5 mm to 1.0 mm. A cut line 14 having a length of 4 to 5 mm is inserted.
However, the shape of the main body, the presence or absence of protrusions (ears), and the like are within a range that can be changed as appropriate. In the present invention, a cut having a predetermined length is formed in the radial direction (direction toward the center). The release paper can be easily peeled off from the main body nonwoven fabric. A structural change suitable for this purpose can be made as appropriate. Changing the length of the cut, the number of cuts (such as two parallel cuts), and making this a perforation are also within the scope of the present invention. In addition, since there is no limitation on whether or not the thickness of the nonwoven fabric body is cut, it is necessary that a cut is formed and cut at least in the cut.

  The present invention is useful as a technique for a non-woven fabric filter for an electric fan, for example.

10 Filter 11 Filter body,
12 Release paper,
13 Protrusion,
14 Cut,
15 Extra length part (non-cutting part).

Claims (5)

A sheet-like non-woven filter body;
A nonwoven fabric filter provided with a release paper layered on one side of the filter body via an adhesive,
A non-woven fabric filter formed on the outer peripheral edge portion of the filter main body, extending from the outer peripheral edge toward the center of the filter main body and having a cut having a predetermined length for cutting the release paper.   The nonwoven fabric filter according to claim 1, wherein a part of the outer peripheral edge of the filter main body is formed with a protrusion protruding outward from the outer peripheral edge, and the cut is formed in the protrusion.   3. The nonwoven fabric according to claim 1, wherein the cut extends from the outer periphery of the filter body or the protrusion by a predetermined length by a predetermined length toward a radial inward position starting from the radial inner position. Made filter.   The said nonwoven fabric filter is a nonwoven fabric filter of any one of Claims 1-3 attached to the air inlet port part of an electric fan.   The nonwoven fabric filter according to claim 4, wherein the electric fan is attached to a jacket.

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