JP2003339617A - Dedusting cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a dedusting cleaner consisting of a tacky adhesive tape having excellent tackiness and dedusting efficiency. <P>SOLUTION: Hollow spherical particulates of a thermoplastic resin having elasticity and a tacky adhesive are uniformly mixed to form a tacky adhesive composition and this composition is applied to one surface of a base material to form a tacky adhesive tape. Such tacky adhesive tape is wound by positioning its tacky adhesive layer on the outer side to form the wound body of the tacky adhesive tape, by which the dedusting cleaner is obtained. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dust removing cleaner which is pressed against a floor carpet, tatami mat, wall surface or ceiling surface to remove dust, dirt, dust and the like from an adhesive layer.

[0002]

2. Description of the Related Art Conventionally, it has already been known to use an adhesive tape wound with an adhesive layer surface as an outer side as a dust cleaner, as disclosed in, for example, Japanese Patent Application Laid-Open No. 61-100224. ing.

[0003]

As described above, there are various kinds of conventionally known dust removing cleaners, but the dust removing cleaner described in the above-mentioned Japanese Patent Laid-Open No. 61-100224 is an adhesive. Since the layer has elasticity, it has a function to fit well to the uneven surface of the object to be cleaned and to adhere dust, dust, and dirt in the recess well.

However, the above dust removing cleaner lacks the ability to instantaneously attach dust, dirt, and dust, and the adhesive force immediately decreases. Therefore, a fresh adhesive layer surface is always prepared. It was necessary to maintain the condition in which it was used and was forced to use a large amount of tape.

Originally, the dust removal cleaner is required to have the following functions. (1) It has the ability and durability to attach dust, dirt and dust instantaneously. (2) It has a function of conforming to the unevenness of the object to be cleaned and attaching dust, dirt, and dust. (3) If the object to be cleaned is flat such as a tile or a wall surface, the adhesive force between the object and the object is too strong, and the object will be stuck to the object when the dust cleaner is rotated back and forth. It must be peelable so that it will not be rewound.

[0006]

The present invention which can solve the above problems includes the following respective inventions. (1) A pressure-sensitive adhesive tape obtained by applying a pressure-sensitive adhesive composition formed by uniformly mixing spherical thermoplastic resin hollow fine particles having elasticity and a pressure-sensitive adhesive to one side of a base material, the pressure-sensitive adhesive layer being outside Dust cleaner consisting of a roll of adhesive tape that has been wrapped around.

(2) The spherical spherical thermoplastic resin fine particles having elasticity are hollow fine particles formed by previously heat-foaming synthetic resin microcapsules containing a thermally expansive substance. The dust remover according to item (1).

(3) The dust cleaner according to item (1) or (2), wherein the adhesive tape winding body has a release liner on the adhesive surface.

[0009]

DETAILED DESCRIPTION OF THE INVENTION

The adhesive tape used in the dust removing cleaner of the present invention has, for example, the layer structure shown in FIG. In the case of the adhesive tape of FIG. 1, the adhesive tape 1 is the tape base material 3
A pressure-sensitive adhesive layer 2 in which the thermoplastic resin hollow fine particles 5 having spherical elasticity, which have already been expanded and formed on one surface of the
And the release agent layer 4 on the opposite surface.

As the tape base material 3, kraft paper, cloth,
Base materials used for ordinary adhesive tapes such as nonwoven fabrics and films are used. It is desirable that the surface of the tape base material 3 opposite to the surface on which the pressure-sensitive adhesive layer is provided be peeled with a peeling agent.

As the pressure-sensitive adhesive forming the pressure-sensitive adhesive layer 2, a rubber-based pressure-sensitive adhesive, an acrylic pressure-sensitive adhesive, a urethane pressure-sensitive adhesive, a silicone pressure-sensitive adhesive, a vinyl ether pressure-sensitive adhesive or the like can be used.

The thermoplastic resin hollow fine particles 5 are formed by heat-expanding heat-expandable microcapsules containing vinylidene chloride-acrylonitrile copolymer or acrylonitrile polymer as a shell wall and containing volatile hydrocarbons. The hollow fine particles having elasticity and capable of forming a large number of independent holes having elasticity inside the pressure-sensitive adhesive layer 2 are used. Examples of the hollow fine particles include Matsumoto Microsphere F80ED manufactured by Matsumoto Yushi-Seiyaku Co., Ltd.

The dust removing cleaner of the present invention and the above-mentioned JP-A-6
The difference from the dust remover disclosed in JP-A-1-100224 is that the dust remover described in the above-mentioned publication mixes spherical heat-expandable microcapsules containing a foamable substance with an adhesive and then heats the adhesive in the adhesive layer. While the expansive microcapsules are heated and foam-expanded, the dust-removing cleaner of the present invention is an adhesive formed by uniformly mixing thermoplastic resin hollow fine particles that have been foam-formed in advance with an adhesive. It has the agent layer.

Since the dust removing cleaner of the present invention is provided with appropriate elasticity and supporting force without impairing the tackiness of the surface of the pressure-sensitive adhesive layer, it has the ability to instantaneously attach dust, dirt and dust. Although the clear reason for its excellent durability must be awaited for further research in the future, when the foamable substance is heated and foamed in the state where the foamable substance is mixed with the adhesive, the adhesive formed. When the foamable substance expands in the layer, elongation that reduces the original tackiness of the pressure-sensitive adhesive in the pressure-sensitive adhesive layer occurs, whereas the pressure-sensitive adhesive layer of the present invention is a coated and dried pressure-sensitive adhesive layer. It is presumed that the expansion of the pressure-sensitive adhesive layer does not occur because there is no foaming inside.

[0016]

EXAMPLES 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 Acrylic adhesive having a nonvolatile content of 40% [trade name "S
Kdyne A-1340 "manufactured by Soken Chemical Industry Co., Ltd.] 100 g
And thermoplastic resin hollow fine particles (trade name "Microsphere F80ED" manufactured by Matsumoto Yushi-Seiyaku Co., Ltd.) 0.85 g
5 g of a toluene wet product of No. 2 was stirred and mixed in "Homo Disper" manufactured by Tokushu Kika Kogyo Co., Ltd., and then toluene 2 was separately added.
0.05g of aluminum chelate-based curing agent (trade name "Aluminum chelate A" manufactured by Kawaken Fine Chemical Co., Ltd.) was added to 5g, and the mixture was stirred and mixed in the "Homo Disperser". An agent composition was prepared. A polyester film base material having a thickness of 38 μm and a width of 20 cm was subjected to a release treatment with a silicone release agent, and the opposite surface was coated with the above-mentioned pressure-sensitive adhesive composition using a roll coater to obtain a pressure-sensitive adhesive layer thickness after drying. Is about 70 μm,
After drying, the adhesive tape was wound around a paper core having an inner diameter of 38 mm so that the adhesive layer was on the outside, to produce an adhesive tape for a dust removing cleaner.

100 g of an acrylic adhesive having a nonvolatile content of 40% [trade name "SKDyne A-1340" manufactured by Soken Chemical Co., Ltd.] and heat-expandable microcapsules (trade name "Microsphere F80" Matsumoto) Oil and Fat Pharmaceutical Co., Ltd.) 0.85 g and toluene wet product 5 g are mixed by stirring in “Homo Disper” manufactured by Tokushu Kika Kogyo Co., Ltd., and then separately, in 25 g of toluene, an aluminum chelate-based curing agent (trade name “ Aluminum chelate A "manufactured by Kawaken Fine Chemicals Co., Ltd.)
The pressure-sensitive adhesive composition was prepared by adding 0.05 g and stirring and mixing in the "Homodisperser", and further stirring and mixing. A polyester film base material having a thickness of 38 μm and a width of 20 cm was subjected to a release treatment with a silicone release agent, and the opposite surface was coated with the above-mentioned pressure-sensitive adhesive composition using a roll coater to obtain a pressure-sensitive adhesive layer thickness after drying. Of about 70 μm, dried to remove the solvent, and then heated at 150 ° C. in an oven (“PH-200” manufactured by Tabai Espec) to obtain heat-expandable microcapsules in the adhesive layer. Was thermally expanded, and then wound around a paper core having an inner diameter of 38 mm so that the adhesive layer was on the outer side to produce an adhesive tape for a dust cleaner.

The pressure-sensitive adhesive tapes obtained in Examples and Comparative Examples were tested for each item (thickness of pressure-sensitive adhesive layer, pressure-sensitive adhesive strength after 30 minutes of pressure bonding, pressure-sensitive adhesive strength immediately after pressure bonding, dust adhesion performance, dust adhesion persistence performance, backward rolling). Test, dust cleaner operation), first
The results shown in the table were obtained.

[Test Method] Pressure-sensitive adhesive layer thickness: The samples of Examples and Comparative Examples were measured according to JIS
The thickness of the pressure-sensitive adhesive tape was measured according to the method specified in Z 0237, and the polyester film (38
The thickness was calculated by subtracting the thickness (μm).

Adhesive strength: Samples of Examples and Comparative Examples were
According to the method specified in JIS Z 0237, the 90 ° peel adhesive strength of the adhesive tape to the stainless steel plate was measured. However, the adhesive strength after 30 minutes of pressure bonding is measured by bonding it to a stainless steel plate and 30 minutes after pressure bonding with a pressure roller, and the adhesive strength immediately after pressure bonding is measured immediately after pressure bonding with a pressure roller to determine the instantaneous adhesion. The test was conducted by substituting the property (tack property).

Dust adhesion performance: The samples of Examples and Comparative Examples were attached to an adherend on which a metal powder was evenly adhered on a polyester film, peeled off, and the adhesion state of the metal powder adhered to the surface of the adhesive was measured. The comparison was made visually.

Dust adhesion sustainability: The 90 ° peeling adhesive force of the adhesive tape to the stainless steel plate was measured by the method specified in JIS Z 0237 for the sample to which the above metal powder was attached. However, the measurement was carried out by the above-mentioned test method based on the adhesive strength immediately after pressure bonding.

Post-Rolling Test: The samples of Examples and Comparative Examples were adhered to commercially available vinyl tiles, and when the dust cleaner was rotated back and forth, it was tested whether or not the tape was rewound onto the vinylite to be adhered. did.

Dust removal cleaner operability: The samples of Examples and Comparative Examples were adhered to the adherend flooring, and the dust removal condition and the compatibility with the adherend when the dust cleaner was rotated back and forth. Tested.

[0026]

[Table 1]

[0027]

EFFECTS OF THE INVENTION The dust removing cleaner according to the present invention has several times more ability to instantaneously attach dust, dirt, and dust as compared with the conventional dust cleaner, and its durability is excellent. No need to use tape. Even if the adherend to be cleaned has a smooth surface, there is no problem such as rewinding of the adhesive tape. Even if the adherend has unevenness, it has good conformability and can be easily cleaned. You can

[Brief description of drawings]

FIG. 1 is a cross-sectional view of an adhesive tape of the present invention.

[0028]

[Explanation of symbols]

1: Adhesive tape 2: Adhesive layer 3: Base material 4: Release agent layer 5: thermoplastic resin hollow fine particles

   ─────────────────────────────────────────────────── ─── Continued front page    F term (reference) 4J004 AA05 AA06 AA08 AA10 AA11                       AA14 AB01 CB01 CB02 CC02                       DB03 EA01 FA10                 4J040 CA001 DC072 DD051 DF041                       DF082 EF001 EK031 HB01                       JA09 JA10 JB09 KA02 KA05                       KA37 LA06 PA22

Claims (3)

[Claims] 1. A pressure-sensitive adhesive tape obtained by applying a pressure-sensitive adhesive composition formed by uniformly mixing spherical thermoplastic resin hollow fine particles having elasticity and a pressure-sensitive adhesive to one surface of a substrate, the pressure-sensitive adhesive layer comprising the adhesive tape. Dust cleaner consisting of a roll of adhesive tape wound on the outside. 2. The spherical spherical thermoplastic resin fine particles having elasticity are hollow fine particles formed by previously heating and foaming synthetic resin microcapsules containing a thermally expansive substance. Item 1. A dust cleaner according to item 1. 3. The dust cleaner according to claim 1, wherein the adhesive tape winding body has a release liner on the adhesive surface.