JP2003010792A - Stick-shaped dust removing tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a stick-shaped dust removing tool which can be inserted easily into even minute space, whose tacky layer can be used effectively for sticking dust and from the support of which an adhesive is hardly released. SOLUTION: This stick-shaped dust removing tool consists of a stick-shaped base body having a taper part 1 of an almost tapered shape at least on one end. The tacky layer 2 is formed on the surface of the part 1 and an anchor part is formed for mooring the layer 2 to the surface of the part 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention adhesively removes minute dust adhering to OA devices such as keyboards and printers, and minute dust that becomes a problem in a clean room in the fields of painting, printing, electric and electronic, etc. The present invention relates to a taper stick type dust remover.

[0002]

2. Description of the Related Art The minute dust attached to OA equipment is
It is removed with a cotton swab, a non-woven cloth wiper, etc. that has been blown with air, dried, or moistened with a cleaning agent such as water or a solvent. On the other hand, in fields such as electric and electronic fields, precision machinery fields, and optical devices, where particularly small amounts of dust are disliked, the manufacturing, processing, transportation, and assembly of the parts are performed in a clean room isolated from the outside.

[0003]

However, in the case of air blowing, since dust or the like is blown off by air, there is a concern that dust may redeposit on other articles, which does not lead to the fundamental removal of dust. Further, when dust or the like is removed with a cotton swab or a non-woven cloth wiper, there is a concern that the fiber scraps and the like detached from the cotton swab or the non-woven cloth may adhere, and that the cleaning agent may affect the adherend.

Further, it is conceivable to attach and remove dust with an adhesive tape or the like, but when the dust is removed, the dust adheres to the area to be removed. However, there is a problem in that it is not possible to remove dust in a narrow area such as between the keys of a keyboard.

In order to solve such a problem, Japanese Unexamined Patent Application Publication No.
No. 0-166853 discloses a stick-shaped dust remover in which a substantially spherical adhesion removing portion is provided at the tip of a support rod. However, in order to remove dust in a narrow gap with this dust remover, the adhesive removal portion itself must be downsized, and naturally the support rod itself must also be thin, so the strength of the support rod is weak. However, there is a problem that it is difficult to handle. Further, in the substantially spherical adhesive portion, the upper part of the spherical body on the side of the support rod is unlikely to come into contact with dust, and as a result, the dust removal efficiency is reduced. In addition, since the adhesive is easily detached from the support rod when attaching dust, there is a problem that the surface to be cleaned is contaminated. Therefore, the present invention provides a stick-type dust remover that can be easily inserted even in a minute space, can effectively utilize an adhesive layer for adhering dust, and that this adhesive is not easily detached from the support. To aim.

[0006]

Means for Solving the Problems A stick-type dust remover of the present invention comprises a stick-shaped substrate having a tapered portion formed in a substantially tapered shape at least at one end, and an adhesive layer is formed on the surface of the tapered portion. As well as
The stick-type dust remover was formed with an anchor portion for connecting the adhesive layer to the surface thereof. According to a second aspect, the taper portion and the stick-shaped substrate are detachably provided, and in the third aspect, the shape of the portion of the taper portion where the adhesive layer is formed has a diameter of 2 mm or less at the tip end portion and a taper portion. A taper shape of 1 cm or more continues in the axial direction (length direction), and the diameter at the end of taper is 3 to 10
When it is mm, the shape and size of the tapered portion are defined. Further, in claim 4, the shape of the anchor part is specified as one or more structures selected from concave parts, holes, convex parts and grooves, and in claim 5, the adhesive layer solidifies the liquid adhesive composition or It was identified as cured.

Further, the stick-type dust remover of the present invention, as its name implies, has a taper-shaped adhesive dust-removing portion, so that dust can be removed in a point-like manner by using its tip, and dust in a narrow gap can be removed. It is also possible to do so. If the side surface of the taper-like adhesive dust removing portion is used, it linearly comes into contact with the base material to be removed, and if the dust removing tool is rotated to remove dust, it is possible to remove the dust in a planar manner, and it is also possible to remove a large area. At this time, even when the taper angle of the dust remover and the contact angle of the base material to be removed from the dust do not match, if the base material of the adhesive dust remover itself is flexible, it is possible to follow. Since it comes into contact with the base material to be dust-removed in the form of dots or lines, there is almost no adverse effect of transfer of the adhesive dust-removing agent.

[0008] Also, when the base material to be dust-removed is, for example, a plate-shaped one and the end face of the punched hole or the end face of the punched hole is dust-removed, the adhesive dust-removing portion has a taper shape, so that the end face of the different diameter hole can be removed Therefore, if the side surface of the adhesive dust removing portion is brought into contact with the end face and dust is removed while rotating, it is possible to remove the dust without worrying that the adhesive dust removing portion will come off the base material to be removed.

In the present invention, the adhesive layer formed on the surface of the tapered portion needs to have a shape-retaining property so as to form a constant shape on the surface of the tapered portion after forming the layer. The formed adhesive layer has a use temperature (-20 to 20).
There is no particular limitation as long as it exhibits adhesiveness at 40 ° C. Specific examples thereof include natural rubber-based, synthetic rubber-based, urethane-based, acrylic-based and other pressure-sensitive adhesives. When forming these pressure-sensitive adhesives on the surface of the tapered portion, for example, the pressure-sensitive adhesives may be diluted with water or a solvent, applied in a liquid or emulsion state, and then solidified or cured, or hot-melted. When a mold-type adhesive is used, it may be formed by applying a liquefied material by heating and then solidifying or curing it. Alternatively, it may be formed by applying a reactive resin such as heat curing or electron beam curing and then curing it. As a coating method,
Various methods such as dip coating, brush coating, spray coating, and transfer coating can be used.

Further, the above-mentioned adhesive layer may be a foam. Acrylic adhesive is especially suitable because it is difficult to transfer glue to the base material to be removed during dust removal and the low-molecular weight compounds in the adhesive do not easily transfer to the dust removal surface, and it also has an appropriate tack force for dust removal. preferable. Especially when used for removing dust from the information recording device-related device and its parts, for example, WO9
An acrylic resin produced by a production method which has a small amount of outgas components and does not contain an organic tin compound, the production method of which is disclosed in 9/51653, is preferable.

Further, examples of the resin to which electron beam curing is applied include those obtained by adding a photopolymerization initiator to a base resin having a urethane skeleton represented by the following formula (1). If desired, additives such as tackifiers and thixotropy imparting agents can be added. The pressure-sensitive adhesive having such a skeleton can remove dusts adhering to the surface by washing with water, recovers the pressure-sensitive adhesiveness after drying, and can be reused, which is advantageous in terms of cost and environment. A-I- (P-I) nC ... (1) (where A is β-hydroxyethyl acrylate, I
Is isophorone diisocyanate, P is a polyol, C is a monool component, and n is the number of units. )

The material of the tapered portion used in the present invention includes polyethylene, polypropylene, polystyrene,
A synthetic resin such as acrylic resin or a natural material such as bamboo or wood may be processed and molded, but the material is not particularly limited. From the viewpoint of migration of material components, flexibility or processability, and price, it is preferable to use a resin molded from an olefin resin such as polyethylene or polypropylene.

Further, the shape of the above-mentioned taper portion is a substantially conical shape that tapers toward the tip thereof, and the inside thereof may be hollow or solid. The shape of the portion of the taper portion that forms the adhesive layer is
It is desirable that the diameter of the most distal portion is 2 mm or less, that the tapered portion continues to have a substantially tapered shape in the axial direction (longitudinal direction) of 1 cm or more, and the diameter at the end of the taper is 2 to 10 mm. In order to detachably attach the stick-shaped base and the taper part, the inside of the taper part is made hollow and the bottom of the taper part (conical bottom surface) is opened so that the end of the stick-shaped base is in this space. May be inserted and engaged. In this case, the stick-shaped substrate can be reused and the cost can be reduced.

Further, an adhesive layer is formed on the surface of the above-mentioned taper portion, and in order to firmly adhere this adhesive layer, the surface of the taper portion is roughened, or appropriate unevenness or grooves,
Alternatively, it is desirable to provide a hole to form the anchor portion. This is because, for example, when the taper portion is dipped in the liquid of the above-mentioned pressure-sensitive adhesive composition and applied, the pressure-sensitive adhesive is well compatible with the surface of the taper portion and can prevent the adhesive layer from coming off from the taper portion. is there. The adhesive layer may be provided on the entire tapered portion or a part thereof, and may be formed arbitrarily according to the purpose.

Further, FIGS. 1 (e) to 1 (g) and 2 (e).
When a passage communicating from the tip of the taper portion to the conical bottom portion is provided as in (g), air can be removed through this passage when the taper portion is immersed in the liquid adhesive composition, and It is very convenient because the pressure-sensitive adhesive that has entered serves as an anchor. Furthermore, the tip of the taper part may be sharpened like a needle, but if it is sharp, it is inconvenient to handle, and in order to form the anchor part at the tip part, make it round or cut it in a plane. You may.

Next, the stick-shaped substrate will be described. The stick-shaped substrate is provided with a tapered portion on at least one end thereof. The taper portion may be integrated with the stick-shaped base body, or may have a structure in which the taper portion and the stick-shaped base body are connected to each other by using an appropriate engaging means.

Next, an example of the present invention will be described with reference to the drawings, but the present invention is not limited to these shapes. FIG. 1A is a schematic view of a tapered portion having a flat tip shape. The size of the tapered portion is preferably optimized in consideration of the size of the substrate itself, the taper angle, the viscosity of the adhesive composition and the thixotropy. 1 (b),
(C) And (d) is a schematic diagram of the taper part in which the front-end | tip of a base material is concave shape or groove shape. The shape of the recess is cylindrical (b), conical (c), or spherical (d) with respect to the axial (length direction) direction of the taper portion, and in the case of the groove portion, it is in the axial direction of the taper portion. It is formed in a substantially vertical direction into a quadrangular prism (b), a triangular prism (c), and a semi-cylindrical cylinder (d), respectively. The size and depth of the recesses and grooves are preferably optimized depending on the size of the substrate, the taper angle, the viscosity of the adhesive composition, the thixotropy, and the like. It should be noted that the formation of the groove portion rather than the recess portion is more suitable for forming the adhesive layer by dip coating, because bubbles will escape better when immersed in the adhesive composition.

1E, 1F and 1G are schematic views of a tapered portion having a through hole extending from the tip to the bottom. Examples of the shape of the through hole include a straight hole (e), a concave portion having a through hole formed therein (f), or a tapered portion itself being hollow (g). The size of the through hole is preferably optimized in consideration of the size of the tapered portion, the taper angle, the viscosity of the adhesive composition, the thixotropy, and the like.

FIG. 2 is a schematic view showing the taper portion of the stick type dust remover of the present invention in which an adhesive layer is formed on each taper portion of the shape shown in FIG. When the pressure-sensitive adhesive layer is formed of a liquid pressure-sensitive adhesive composition as shown in FIG.
When the tip of the taper portion is made flat, a resin puddle of an appropriate size can be formed in that portion, so that the dust-removing property is improved, the strength of the adhesive layer is increased, and the adhesive layer can be prevented from being torn or dropped. Further, as shown in (b) to (g) of FIG. 2, when the anchor part is provided, the adhesive also enters the part, and the resin strength is further improved, and the detachment of the adhesive layer from the tapered part can be prevented. . In particular, when such a through hole is provided, it is possible to prevent air bubbles from being mixed due to the formation of the recess shown in FIGS. 1B to 1D.

FIG. 3 is an overall schematic view showing an example of the stick type dust remover of the present invention. In FIG. 3A, the cylindrical tip portion is tapered. In FIG. 3B, the entire stick is tapered. in this case,
It is preferable that the part that is supported by the finger is processed so as to enhance grip. 3 (c) and 3 (d), the taper portion and the stick-shaped base body are detachably formed, and the taper portion and the stick-shaped base body may be joined in any shape without any problem. Although the adhesive layer is not shown in FIG. 3, the adhesive layer may be formed at an arbitrary position on each tapered portion.

[0021]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below with reference to Examples and Comparative Examples, but the present invention is not limited to these Examples.

[0022]

Example 1 A cylindrical rod made of polypropylene (diameter 4 mm
One end having a length of 8 cm) was processed into a taper shape (tapered portion length 2.5 cm) so that a circular flat surface portion having a diameter of about 1 mm was left at the most distal end. Next, a tackifier is added to a photo-curable resin containing polyurethane acrylate as a main component to form a uniform viscous pressure-sensitive adhesive composition, and almost the entire tapered portion of the round bar is immersed in this solution. It was applied by. Then, the excessively adhered pressure-sensitive adhesive composition was dropped and then allowed to stand upright, and UV light was irradiated to cure the pressure-sensitive adhesive composition to obtain a stick-type dust remover having a pressure-sensitive adhesive layer having rubber elasticity.

When this stick type dust remover was used to remove the gaps and keys in the keyboard of the notebook computer, the dust that had entered the gap could be removed by the adhesive layer at the tip of the dust remover. . In addition, when the dirt adhering to the key surface was rubbed with the entire adhesive layer of the dust remover, the dirt could be removed cleanly. Although the adhesive layer was not broken during the dust removal work, the adhesive layer was sometimes peeled off.

[0024]

Example 2 A cylindrical rod made of polypropylene (diameter 4 mm
1.5mm in diameter at one end of 8cm)
It was processed into a taper shape (tapered part length 2.0 cm) so as to leave a flat surface part on a circle. Then, a cross-shaped groove (both vertical x horizontal x depth 0.5 mm) was formed in the flat surface portion on the circle. Next, a tackifier is added to a photocurable resin containing polyurethane acrylate as a main component to form a uniform viscous pressure-sensitive adhesive composition, and substantially the entire tapered portion of the cylindrical rod is immersed in this solution. It was applied by. Then, the excessively adhered pressure-sensitive adhesive composition was dropped and then allowed to stand upright, and UV light was irradiated to cure the pressure-sensitive adhesive composition to obtain a stick-type dust remover having a pressure-sensitive adhesive layer having rubber elasticity.

The stick-type dust remover was used to remove the gaps and keys of the keyboard of the notebook computer, and the dust that had entered the gap could be removed by the adhesive layer at the tip of the dust remover. . In addition, when the dirt adhering to the key surface was rubbed with the entire adhesive layer of the dust remover, the dirt could be removed cleanly. It should be noted that in this dust removal work, the adhesive layer did not break, and peeling of the adhesive layer from the taper portion did not easily occur, but in some cases air bubbles may be caught in the adhesive layer formed at the tip of the taper portion. there were.

[0026]

Example 3 A tapered polypropylene hollow tip having a through hole to the tip (the tip has a diameter of 1.0 m).
m, bottom diameter 7.0 mm, taper length 5.0
cm, the diameter of the through hole at the tip is 0.5 mm),
1. From the tip to the photocurable pressure-sensitive adhesive composition used in Example 1.
It was immersed for about 5 cm, and thereafter the same operation as in Example 1 was carried out to obtain a stick type dust remover.

When this stick type dust remover was used to remove the gaps and keys in the keyboard of the notebook computer, the dust that had entered the gaps could be removed by the adhesive layer at the tip of the dust remover. . In addition, when the dirt adhering to the key surface was rubbed with the entire adhesive layer of the dust remover, the dirt could be removed cleanly. In this dust removal work, the adhesive layer did not break, and peeling of the adhesive layer from the taper portion did not occur easily.

[0028]

Example 4 A pressure-sensitive adhesive composition was prepared by dissolving a polybutadiene rubber and a tackifier in an organic solvent. The polypropylene columnar rod used in Example 1 was dipped in and applied to this liquid, and then an adhesive was added dropwise to volatilize the solvent while standing upside down to form an adhesive layer. Obtained.

The stick-type dust remover was used to remove dust from the gaps and keys of the keyboard of the notebook computer, and it was confirmed that the dust-removing property was almost the same as that of the first embodiment. However, the shape of the pressure-sensitive adhesive layer formed at the tip of the taper portion is likely to be indefinite, so that it was necessary to control the viscosity and thixotropy of the pressure-sensitive adhesive composition.

[0030]

EFFECTS OF THE INVENTION The stick-type dust remover according to the present invention can be inserted into a narrow gap because its tip portion is tapered, and for example, dust can be sufficiently removed even from a gap in the keyboard part of a notebook computer and work can be performed. The property is also very good. Further, by providing the taper portion with an anchor portion such as a groove or a hole, it is possible to prevent the adhesive layer from falling off during dust removal work.

Further, when the pressure-sensitive adhesive layer is formed of the photocurable pressure-sensitive adhesive composition, the manufacturing efficiency is improved because it is easy to control the shape of the pressure-sensitive adhesive layer formed on the tapered portion.

[Brief description of drawings]

FIG. 1 is a schematic view showing a shape of a taper portion of a stick-type dust remover.

FIG. 2 is a schematic view showing the shape of a taper portion after forming an adhesive layer of a stick-type dust remover.

FIG. 3 is a schematic view showing the whole stick-type dust remover excluding an adhesive layer.

[Explanation of symbols]

1 Tapered part 2 Adhesive layer 3 through holes 4 Anchor part 5 Stick-shaped substrate

Claims (6)

[Claims] 1. A stick-shaped substrate having a taper portion formed in a substantially taper shape at least at one end, wherein an adhesive layer is formed on the surface of the taper portion, and the adhesive layer is fixed to the surface. Stick type dust remover characterized in that the anchor part of the is formed 2. The stick type dust remover according to claim 1, wherein the taper portion and the stick-shaped base body are detachably provided. 3. The shape of the portion of the taper portion where the adhesive layer is formed is 2 mm or less in diameter of the most distal end portion, and is substantially 1 cm or more in the axial direction (length direction) of the taper portion. And the diameter at the end of the taper is 3 to 10 m
The stick type dust remover according to claim 1. 4. The shape of the anchor portion has one or more structures selected from concave portions, holes, convex portions, and grooves.
Stick type dust remover described in 5. The stick type dust remover according to claim 1, wherein the adhesive layer is formed by solidifying or curing a liquid adhesive composition. 6. The stick-type dust remover according to claim 5, wherein the liquid pressure-sensitive adhesive composition is an energy ray-curable resin composition.