KR20040021657A - Dust removing cleaner - Google Patents

Abstract

This invention provides the damping cleaner which consists of an adhesive tape excellent in viscosity and vibration damping efficiency. A dusting cleaner comprising an adhesive tape formed by applying a pressure-sensitive adhesive composition formed by uniformly mixing an elastic spherical thermoplastic resin hollow particulate and an adhesive to one side of a substrate, and having the pressure-sensitive adhesive layer facing outward. to be.

Description

Dust removal cleaner {DUST REMOVING CLEANER}

Conventionally, for example, as shown in JP 61-100224 A and JP 2530113 A, etc., it is already known to use a pressure-sensitive adhesive tape rolled outward as a vibration damper cleaner. .

As described above, there are various known vibration damping cleaners. However, since the vibration damping cleaners described in Japanese Patent Application Laid-Open No. 61-100224 and Japanese Utility Model Registration No. 2530113 have elasticity in the pressure-sensitive adhesive layer, bending of the object to be cleaned is possible. It goes well with cotton and has the function of attaching dirt, dust and trash to concave parts.

However, the above damping cleaner lacks the ability to instantly adhere dust, dust, and garbage, and the adhesive force quickly decreases. Therefore, a large amount of tape must be used in order to keep the fresh adhesive layer surface ready at all times. There was no.

Inherently, the damping cleaner requires a function as shown below.

(1) The ability and sustainability to attach dust, dust and garbage at the moment.

(2) It should have the function of attaching dust, dust and garbage according to the curvature of the object to be cleaned.

(3) If the object to be cleaned is flat, such as a tile or wall surface, the adhesive force between the adhesive tape and the object is too strong, so that the adhesive tape does not rewind to the object when rotating the dust removal cleaner back and forth.

The present invention is pressed directly to the carpet or tatami of the floor, the wall surface or ceiling surface, or by rotating contact with the adhesive roll pressed on the electronic material such as a printed circuit board, liquid crystal panel, dirt, dust, garbage, etc. attached to the adhesive layer to remove It relates to a vibration damping cleaner.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a sectional view of an adhesive tape used in the vibration damper of the present invention.

2 and 3 are diagrams schematically showing an application example of the vibration suppression cleaner of the present invention.

The present invention capable of solving the above problems includes the following inventions.

(1) A pressure-sensitive adhesive tape having a pressure-sensitive adhesive tape having a pressure-sensitive adhesive layer in which the pressure-sensitive adhesive layer, which is prepared in the pressure-sensitive adhesive, in which hollow thermoplastic particles are dispersed, is coated on one side of the substrate. Dedusting cleaner.

(2) The vibration suppressing cleaner according to (1), wherein the thermoplastic resin hollow fine particles having the elasticity are hollow fine particles formed by heating and foaming a synthetic resin microcapsule containing a heat-expandable substance in advance.

(3) The vibration damping cleaner according to (1) or (2), wherein the pressure-sensitive adhesive tape winding member has a release liner on the pressure-sensitive adhesive surface.

(4) The vibration suppression cleaner according to any one of the above (1) to (3), wherein the thermoplastic resin hollow fine particles are spherical hollow particles.

(5) The vibration suppression cleaner according to any one of the above (1) to (4), wherein the thermoplastic resin hollow fine particles have a specific gravity of 0.01 to 0.10 g / cm ³ .

(6) The vibration damping cleaner according to any one of the above (1) to (5), wherein the thermoplastic resin hollow fine particles have an average diameter of 20 to 60 µm.

(7) The vibration damping cleaner according to any one of the above (1) to (6), wherein the content of the thermoplastic resin hollow fine particles in the pressure sensitive adhesive layer is in the range of 10 to 60% by volume based on the pressure sensitive adhesive layer.

(8) The vibration damping cleaner according to any one of the above (1) to (7), wherein the content of the hollow thermoplastic resin particles in the pressure sensitive adhesive layer is in the range of 0.5 to 5% by weight based on the pressure sensitive adhesive layer.

(9) The vibration damping cleaner according to any one of the above (1) to (8), wherein a 90-degree peeling adhesive force after 30 minutes of roll crimping is 0.5 to 3 N / 20 mm according to the method specified in JIS Z 0237.

(10) In accordance with the method specified in JIS Z 0237, the conditions of adhesion and compression of the tape to the stainless steel plate are 3 g / cm ² for 2 seconds, and the measured 90-degree peeling force is 0.25 to 1.5 N / 20 mm. The vibration suppression cleaner in any one of (1)-(9).

(11) The vibration suppression cleaner according to any one of the above (1) to (10), for dust removal of a printed board.

(12) Equipped with an adhesive rubber roller and the vibration damping cleaner according to any one of the above (1) to (10), the dust and dirt are removed from the object to be damped with the adhesive rubber roller, and then detached from the adhesive rubber roller. A dust removal device characterized in that dust and dirt are transferred to the vibration suppression cleaner which is brought into contact with the adhesive rubber roller and subjected to vibration.

In the dust removal cleaner of the present invention, as in the prior art, (i) when the dust or dirt attached on the adherend is directly removed, and (ii) the dust or dust on the adherend is first peeled off with an adhesive rubber roll (described later). It is a vibration damping cleaner which winds up the adhesive tape called a post-cleaning roll upside down, and can be used in the case of removing dust and dirt adhering to the surface of the adhesive rubber roll (transfer method).

The adhesive tape used for the vibration damper of this invention has the laminated constitution shown in FIG. 1, for example. In the case of the adhesive tape of FIG. 1, the adhesive tape 1 has the adhesive layer 2 which uniformly disperse | distributed the thermoplastic resin hollow fine particle 5 which has the elasticity already expanded on one side of the tape base material 3, The opposite surface has the release agent layer 4. It is preferable that the opposite surface to the surface on which the adhesive layer of a tape base material is provided is peeled off with a peeling agent.

As a tape base material, the base material used for normal adhesive tapes, such as kraft paper, a cloth, a nonwoven fabric, and a film, is used. In dust removal in a clean room, such as a printed circuit board manufacturing process, since a dust and a dust are hard to generate | occur | produce, a film type is used suitably. Among the film-based substrates, special synthetic papers (e.g., Diffusion, Diffusion Co., Ltd.) or olefin films (e.g., trade name: Trepan, Toray, etc.) are easily cut in the horizontal direction due to tape cutting properties. This is more appropriately used.

As an adhesive which forms an adhesive layer, a rubber adhesive, an acrylic adhesive, a urethane type adhesive, a silicone type adhesive, a vinyl ether type adhesive, etc. can be used. In the rubber system, the elastomer component is selected from synthetic rubber such as natural rubber or SIS, and as a tackifying resin, a terpene resin or a petroleum resin may be a plasticizer, a filler, a vulcanization agent in some cases. , 加 硫 劑), Use anti-aging agent in combination. In the acrylic system, various acrylic alkyl ester monomers such as butyl acrylate and 2-ethylhexyl acrylate and monomers such as acrylic acid are copolymerized, and metal chelates (aluminum, titanium, zirconium, etc.) and isocyanate as crosslinking agents. What hardened | cured by mix | blending system type (triene diisocyanate type adduct, hexamethylene diisocyanate type adduct, etc.), epoxy type, melamine type (butylated melamine, methylated melamine, etc.), an aziridine type, etc. is used.

In general, a rubber-based adhesive having a strong adhesive property for removing dust or dirt on a carpet or tatami mat for household use is used as a transition ingredient or adherent to remove dust or dirt on a precision printed component such as a printed board in a clean room. An acrylic pressure-sensitive adhesive having less adverse effect of is used. The adhesive force of the adhesive layer of the vibration damper of this invention is demonstrated later.

As the thermoplastic resin fine particles, a thermoplastic resin fine particle that is formed in advance and has elasticity is used. Hollow particles of such a thermoplastic resin include a vinylidene chloride-acrylonitrile copolymer or an acrylonitrile polymer as an outer wall to thermally expand a thermally expandable microcapsule containing a volatile gas. Branches are commercially available hollow fine particles. In the inside of the pressure-sensitive adhesive layer, one that can form a plurality of independent holes having elasticity can be used. The thermoplastic resin hollow fine particles preferably used in the present invention preferably have a particle diameter of about 10 to 100 μm, an outer wall thickness of about 0.05 to 1.0 μm, a specific gravity of about 10 to 100 kg / m ³ , and more preferably about 20 to about 20 A spherical shape having a thickness of 60 µm, an outer wall thickness of about 0.1 to 0.5 µm, and a specific gravity of about 30 to 70 kg / m ³ is appropriate. Examples of the hollow particulates include Matsumoto Micropair F80ED manufactured by Matsumoto Yushi Seiyaku Co., Ltd., and the like.

In the present invention, since the thermoplastic resin hollow particles formed in advance are used, the characteristics, diameters and distributions of the particle diameters of the hollow particles to be used can be freely selected and controlled freely, and furthermore, bubbles are formed to form an elastic adhesive layer. Even in this case, since only the hollow fine particles selected in advance and mixing with the pressure-sensitive adhesive, there is an advantage that the dispersion and uniform dispersibility of the hollow fine particles in the pressure-sensitive adhesive layer can also be controlled.

The difference between the vibration damping cleaner of the present invention and the vibration damping cleaner shown in Japanese Patent Application Laid-Open No. 61-100224 is that after the vibration damping cleaner described in the above publication mixes a spherical thermally expandable microcapsule containing an expandable substance with an adhesive, The thermally expandable microcapsules in the pressure-sensitive adhesive layer are thermally expanded and expanded, whereas the vibration damping cleaner of the present invention has an pressure-sensitive adhesive layer formed by uniformly mixing the thermoplastic resin hollow particles previously formed with the pressure-sensitive adhesive. The present inventors found that in the vibration damping cleaner shown in Japanese Patent Application Laid-open No. 61-100224 and the like, the viscosity of the pressure-sensitive adhesive layer surface is impaired. It features.

The clear reason why the vibration damping cleaner of the present invention is excellent in ability to temporarily attach dust, dust, and garbage and persistence will be further studied. However, when the foaming material is heated and foamed in the state of mixing the foaming material with the pressure-sensitive adhesive, the pressure-sensitive adhesive formed When the foamable material expands in the layer, the pressure-sensitive adhesive layer in the pressure-sensitive adhesive layer increases, so that the original viscosity of the pressure-sensitive adhesive eventually decreases, whereas the pressure-sensitive adhesive layer of the vibration damper of the present invention is foamed in the pressure-sensitive adhesive layer after the pressure-sensitive adhesive layer is applied and dried. Since there is no, it is speculated that the pressure-sensitive adhesive does not increase.

The content of the hollow thermoplastic resin particles in the pressure-sensitive adhesive layer of the present invention depends on the specific gravity of the hollow thermoplastic resin particles in the range of 10 to 60% by volume, more preferably 30 to 50% by volume, and also the thermoplastic resin hollow particles. Generally, about 0.5 to 5 weight%, More preferably, about 1.25 to 3.0 weight% is preferable. If this content is small, elasticity (cushionability) will be inadequate, the adhesiveness to a curved adherend surface will be lacking, and a worker will be tired easily. On the contrary, when there are too many, an adhesive layer will fall back too much and it will become easy to leave a paste on an adherend.

The adhesive force of the pressure-sensitive adhesive layer has a peeling force of 90 degrees after 30 minutes of roll pressing according to the method specified in JIS Z 0237, and is preferably 0.5 to 3 N / 20 mm, more preferably 1.0 to 2.0 N / 20 mm, and 90 degrees of peeling under low pressure conditions. The adhesive force (adhesive force measured after pressing for 2 seconds at 3 g / cm ² for the tape adhesion and crimping condition to the stainless steel plate as the adherend) is 0.25 to 1.5 N / 20 mm, more preferably 0.5 to 1.0 N / 20 mm. desirable. In this invention, an adhesive layer can have this adhesive force, maintaining a moderate elasticity by using the thermoplastic resin hollow fine particles previously formed.

It is preferable that the thickness of an adhesive layer is larger than the average diameter of the thermoplastic resin hollow fine particle to be used, and it is preferable that the thermoplastic resin hollow fine particle which is larger than the thickness of an adhesive layer is small. If a large amount of the hollow thermoplastic resin particles larger than the thickness of the pressure-sensitive adhesive layer is included, a portion that is not coated with stripes on the pressure-sensitive adhesive layer easily occurs. For example, when the average diameter of the hollow thermoplastic resin particles is 40 µm, the preferred thickness of the hollow thermoplastic resin-containing adhesive layer is 40 µm or more, more preferably 60 µm or more, and still more preferably 70 µm or more. In addition, it is preferable that the hollow thermoplastic resin fine particles to be used have previously removed particles larger than necessary, in particular, the hollow thermoplastic resin particles having a diameter larger than the thickness of the pressure-sensitive adhesive layer with a sieve or the like.

Formation of the pressure-sensitive adhesive layer is usually mixed with a pressure-sensitive adhesive, a crosslinking agent and the like, thermoplastic hollow particles, and prepared a dilution solvent such as toluene, if necessary, stirred and mixed with a suitable homogenizer, applied to the substrate and dried.

Although it is preferable to have a peeling liner on the adhesive layer of the outermost periphery of an adhesive tape winding body, it is preferable to use what provided the peeling layer in the opposite side to the adhesive layer of an adhesive tape as a peeling agent used for this peeling liner.

As a peeling agent, silicone type and non-silicone type are mainly known. As silicone type, the polyaddition product of methylvinyl polysiloxane and methylhydrogen polysiloxane by catalysts, such as platinum, is generally known. As the release silicone, products such as Shin-Etsu Kagaku Kogyo, Toray Dow Corning, Toshiba Silicone, etc. are typical, and have a light to heavy peeling force. For example, 0.1 g of a platinum catalyst (PL50) was added to 10 g of KS 847T of Shin-Etsu Kagaku Kogyo Co., Ltd., and a peeling agent solution having a concentration of about 2.4% diluted with 120 g of toluene was coated with a wire bar having a wire diameter of 0.2 mm, 10 g /. m ² was applied, dried at 100 ° C. for 2 minutes, and the like. In addition, non-silicone series generally exhibit heavier peeling than silicone-based peeling agents, and long-chain alkyl-based, fluorine-based, alkyd-based, and acrylic-based compounds are known, but long-chain alkyl-based (Japanese Utility Model Registration No. 2530113) is typical. For example, Ipposha Oil Industries Co., Ltd. A solution obtained by diluting and dissolving 1 g of a product (pyrrolyl 1010) with 100 g of toluene is applied by wet 10 g / cm ² with the wire bar, dried at 100 ° C. for 2 minutes, and the like.

As described above, the vibration damping cleaner of the present invention is used to directly remove dust or dirt attached on the adherend, and once the dust or dust is peeled off with an adhesive roll, the vibration damping cleaner is brought into contact with the adhesive rubber roll to rotate the adhesive. It is also possible to remove dust and dirt from the rolls.

2 and 3 show an embodiment of the use of such a vibration damper.

In FIG. 2, the vibration damper cleaner damping body 12 is provided on the shim 11, and the shim 11 is rotatably connected to the handle 13.

In FIG. 3, for example, the dust and dirt adhering to the surface of the printed circuit board are removed prior to the exposure of the printed circuit board and before the laminate, so that the printed circuit board 21 passes between the adhesive rubber rolls 22 and 22 ', thereby providing adhesion. The rubber rolls 22 and 22 'remove the dust and dirt adhering to the surface of the printed board 21 once, and then apply the vibration damping cleaners 23 and 23' of the present invention to the adhesive rubber rolls 22 and 22 '. It rotates by contact, and the dust and the particle which adhered to the adhesive rubber rolls 22 and 22 'surface are moved to the damping cleaners 23 and 23'. When the dust removal cleaners 23 and 23 'burn, the part is cut off, and the adhesive layer of the clean (clean) dust removal cleaners 23 and 23' below appears.

The adhesive rubber roll itself used for this purpose is known, and the adhesive rubber roll includes urethane rubber, fluorine rubber, polyisobutylene, butadiene rubber, silicone rubber, styrenebutadiene rubber, ethylene propylene rubber, butyl rubber, acrylic rubber, nitrile Although various rubbers, such as rubber, can be used, silicone rubber, butyl rubber, and urethane rubber are used typically. Although the diameter of a roll is not limited, The thing of about 30-150 mm is used for the damping use of a printed circuit board.

(Example)

Hereinafter, specific examples of the present invention will be described with reference to Examples, but the present invention is not limited to these Examples.

(Example 1)

100g of acrylic adhesive with 40% non-volatile content (trade name "SK DINE A-1340" manufactured by Soken Kagaku Co., Ltd.), and a thermoplastic resin hollow fine particle (trade name "Micro spare F80ED", Matsumoto Yushi Seiyaku Co., Ltd .; average diameter 40 µm, particle size distribution 20 to 60 µm; specific gravity 27 kg / m ³ ; outer wall thickness of about 0.2 µm) 5 g of 0.85 g of toluene wet product was stirred and mixed in Tokushu Kika Kogyo Co., Ltd., `` HOMO DISPER '', Subsequently, 0.05 g of an aluminate-based curing agent (brand name: "Aluminum Chelate A" manufactured by Kawaken Fine Chemical Co., Ltd.) was added to 25 g of toluene, and the resultant mixture was stirred and mixed in the above-mentioned homodisper, and stirred and mixed again, and a sieve was used. To remove the large particles causing streaks in the pressure-sensitive adhesive layer, to prepare an pressure-sensitive adhesive composition A.

One side of the polyester film base material having a thickness of 38 μm and a width of 20 cm was peeled off with a silicone release agent, and on the opposite side, the pressure-sensitive adhesive composition A was applied so that the thickness of the pressure-sensitive adhesive layer after drying was about 70 μm using a roll coater. After drying, the pressure-sensitive adhesive layer was wound on the paper wick having an inner diameter of 38 mm to the outside to prepare an adhesive tape for vibration damper.

(Comparative Example 1)

Acrylic adhesive with 40% non-volatile content (trade name "SK DINE A-1340" manufactured by Soken Kagaku Co., Ltd.) 100 g and thermally expandable microcapsules (trade name "Micropair F80" Matsumoto Yushi Seiyaku Co., Ltd.) 0.85 g 5 g of toluene moistened product was stirred and mixed in "Homodissper" manufactured by Tokushugi Kagogyo Co., Ltd. The thing which stirred and mixed in said "homodisper" was combined, it stirred and mixed again, and the adhesive composition B was prepared.

One side of the polyester film base material having a thickness of 38 μm and a width of 20 cm was peeled off with a silicone release agent, and on the opposite side, the pressure-sensitive adhesive composition B was applied using a roll coater so that the thickness of the pressure-sensitive adhesive layer after expansion was about 70 μm. After drying, the solvent was removed, and then passed through an oven ("PH-200" manufactured by TABAI ESPEC CORP.) And heated to 150 ° C. The thermally expandable microcapsules in the pressure-sensitive adhesive layer were thermally expanded, and then the adhesive was applied to a paper wick having an inner diameter of 38 mm. It wound up so that a layer might be outside, and produced the adhesive tape for vibration damper cleaner.

Test of each item (adhesive layer thickness, adhesive force after 30 minutes of pressing, adhesive force immediately after pressing, garbage sticking performance, garbage sticking persistence performance, post-test test, vibration damper) about the adhesive tape obtained by the Example and the comparative example Operability), and the results as shown in Table 1 were obtained.

[Test Methods]

Adhesive layer thickness:

The thickness of the adhesive tape was measured and the sample of an Example and a comparative example was calculated by subtracting the thickness of the polyester film (38 micrometers) which is a base material.

adhesiveness:

The samples of the examples and the comparative examples were measured for 90 degree peel adhesion to the stainless steel plate of the adhesive tape according to the method specified in JIS Z 0237. However, after 30 minutes of pressing, the adhesive force is measured after attaching to a stainless steel plate and pressing for 30 minutes with a pressing roller, and after the low pressing, the adhesive force is measured immediately after pressing for 2 seconds at 3 g / cm ² to substitute the instantaneous adhesiveness (viscosity). It was done as.

Garbage Attachment Performance:

Samples of Examples and Comparative Examples were attached to the adherend to which the metal powder was uniformly attached on the polyester film and peeled, and the adhesion state of the metal powder (average particle diameter of 5 mu m) attached to the pressure-sensitive adhesive surface was visually compared.

Garbage sticking performance:

The sample to which the metal powder was affixed was measured for 90 degree peeling adhesion with respect to the stainless steel plate of an adhesive tape by the method prescribed | regulated to JISZ0337. However, the measurement was performed by the test method by adhesive force immediately after the said crimping | compression-bonding.

Post-test:

Samples of Examples and Comparative Examples were attached onto the floorings as adherends, and when the vibration damping cleaner was rotated back and forth, it was tested whether the tape was rewound to the adherend vinytile.

Dust Removal Cleaner Operability:

The sample of the Example and the comparative example was affixed on the flooring board which is a to-be-adhered body, and the dust removal state and the adhesiveness with a to-be-adhered body at the time of rotating the damping cleaner back and forth were tested.

Table 1

Example 1 Comparative Example 1 Adhesive layer thickness (㎛) 70 70 Adhesion: 30 minutes after pressing, N / 20mm 1.43 1.14 Adhesive force: Immediately after low compression = viscosity, N / 20mm 0.51 0.16 Garbage Attachment Performance Good Slightly dissatisfied Garbage Attachment Durability: N / 20mm 0.47 0.11 Post-war test No problem No problem Dustproof Cleaner Operability Good Good

As shown in the above experiment, the vibration damping cleaner according to the present invention has a superior performance in adhering dust, dust, and garbage instantaneously, and excellent durability, so that a large amount of tape needs to be used. none. In addition, even if the adherend to be cleaned is a smooth surface, the problem of rewinding of the adhesive tape does not occur, and even if there is a bend on the surface of the adherend, the adhesiveness is good, so that it can be easily cleaned.

The damping cleaner of the present invention is a damping cleaner which is used by directly pressing the carpet, tatami floor, wall surface or ceiling surface of the present invention, and rotating contact with an adhesive roller pressed against an electronic material such as a printed circuit board or a liquid crystal panel to remove dust, dirt or garbage. It is industrially useful as a damping cleaner which adheres to an adhesive layer and removes.

Claims (12)

A damping cleaner made of a pressure-sensitive adhesive tape winding body having a pressure-sensitive adhesive tape in which a pressure-sensitive adhesive layer, which is prepared in the pressure-sensitive adhesive and in which elastic hollow particles of elastic resin are dispersed, is coated on one side of the base material. . The method of claim 1, The thermoplastic resin hollow fine particles having elasticity are hollow fine particles formed by heating and foaming a synthetic resin microcapsule containing a thermally expandable material in advance. The method according to claim 1 or 2, The adhesive tape winding member has a release liner on the pressure-sensitive adhesive surface, characterized in that the cleaner. The method according to any one of claims 1 to 3, Wherein said thermoplastic resin hollow particulate is a spherical hollow particulate. The method according to any one of claims 1 to 4, Dedusting cleaner having a hollow plastic particle specific gravity of 0.01 ~ 0.10g / cm ³ . The method according to any one of claims 1 to 5, A dust removal cleaner having an average diameter of the thermoplastic resin hollow particles in the range of 20 to 60 µm. The method according to any one of claims 1 to 6, A dust removal cleaner having a content of the hollow thermoplastic resin particles in the pressure sensitive adhesive layer in a range of 10 to 60% by volume based on the pressure sensitive adhesive layer. The method according to any one of claims 1 to 7, The vibration suppression cleaner whose content of the thermoplastic resin hollow microparticles | fine-particles in an adhesive layer exists in the range of 0.5 to 5 weight% based on an adhesive layer. The method according to any one of claims 1 to 8, A vibration damping cleaner having a 90-degree peeling force of 0.5 to 3 N / 20 mm after 30 minutes of roll pressing in accordance with the method specified in JIS Z 0237. The method according to any one of claims 1 to 9, According to the method specified in JIS Z 0237, the conditions for adhering and crimping the tape to the stainless steel sheet are 3 g / cm ² for 2 seconds, and the vibration damping cleaner has a measured 90-degree peel adhesion force of 0.25 to 1.5 N / 20 mm. The method according to any one of claims 1 to 10, Dust removal cleaner for dust removal of printed boards. A pressure-sensitive rubber roller and the vibration damping cleaner according to any one of claims 1 to 10 are provided, and dust and dirt are removed from the object to be damped with the pressure-sensitive rubber roller, and then dust, dust and the like peeled off the pressure-sensitive rubber roller. And a dust is removed by moving the dust to the vibration damping cleaner in contact with the adhesive rubber roller.