JPH0716199A - Dust removing material for recessed part - Google Patents

Abstract

PURPOSE:To enable sure and easy cleaning of the dust in deep recessed parts, etc., by mixing a compounding agent which is free from toxicity at room temp. and can be made into a powder form having a less reducing property with a siloxane polymer consisting of boron-contg. siloxane which is an essential component, thereby forming a viscous body having a self-holding property. CONSTITUTION:Fine powder of dry silica is incorporated as a reinforcing agent at 30 pts. by weight, and fine powder of titanium oxide as a coloring agent at 10 pts. with 100 pts. boron-contg. siloxane polymer and a mixture composed thereof is mixed by a single shaft continuous type kneading machine, by which the white dust removing agent is prepd. The silica has affinity to the siloxane polymer and, therefore, has an effect of eliminating creep deformation and increasing the strength of the dust removing material. The titanium oxide has an effect of enabling the recognition of the degree of staining as the white coloring agent. For example, an electric shaver is deposited and stained with the dust, etc., in its recessed parts, but the stains, such as dust, in the recessed parts are stuck to the dust removing material in the state of dust transferred with the shapes of the recessed parts when the dust removing material is slowly pressed to these recessed parts and is pulled apart at a speed higher than the speed at which the dust removing material is pressed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dust remover for efficiently removing and cleaning dust, dirt and dirt accumulated in a recess.

[0002]

2. Description of the Related Art As is well known, a cleaning tool for removing dust, dirt, and dirt from a recessed portion or an unevenly shaped portion or a recessed portion of a complicated object by a method other than cleaning is a suction-type cleaning. It is common to suck it off with a machine or scrape it off with a brush. Further, as a characteristic of non-contact, there is one which blows compressed air or gas filled in a cylinder by blowing. Further, there is a cleaning tool that uses an adhesive for exclusive use of dust and lint, but it is not suitable for a recess. For this reason, it has been proposed to change the properties of the pressure-sensitive adhesive, or to make the shape and structure of the pressure-sensitive adhesive enter the recess. As a means for this, the modulus of the pressure-sensitive adhesive is reduced to make it easier to deform, and the pressure-sensitive adhesive is fixed or locked at the tip of the rod. It has been well known for a long time that clay-like substances adhere dust and the like. Utilizing this fact, there are clay-like materials such as plasticizers, lubricants, tackifiers, etc., which have a low migration property to inorganic materials and resins, and cleaning tools and dust removers that utilize the uncured state of rubber. These mainly use the tackiness, and concrete examples thereof include clay eraser. In addition, a cleaning tool has been proposed in which a substance that gels with a solvent such as water is clay-like and is held by hand and used. In addition, as a limited application, a high-molecular-weight polysaccharide is added with a gelling agent, a wetting agent or the like to clean the concave portion of the stamped surface of the stamp, which is disclosed in JP-A-55-25350.
There is JP-A-55-49286, but this is for printing surface only and is not suitable for general cleaning because the adhesive component migrates.

[0003]

The above-mentioned cleaning tool has the following problems. With suction type vacuum cleaners, objects with weak structures such as paper, plastic models, artificial flowers, and small objects can be blown into the vacuum cleaner or broken or deformed by suction. Also, since the very fine dust that adheres cannot be completely removed, use a brush together to remove it. The method of scraping with a brush is not suitable for soft materials or objects with a mirror-like surface because scratches occur. Next, a cleaning tool that blows off and blows gas sprinkles dust and debris around, or puts dust inside the equipment due to the pressure of the gas. There is also a drawback that water droplets are attached by cooling the adiabatic expansion of gas. It also requires air compression equipment,
The gas filled in the cylinder is quickly exhausted, which is expensive. Next, in order to prevent the transfer of adhesive, the adhesive is made an elastic body by strengthening the cohesive force with a cross-linking agent or tackifier. I can't remove the dust from the corners because it doesn't come in close contact. Even if it gets in, it will not come out of the recess due to the adhesive force, and handling is inconvenient. Further, there is a risk that the surface of the object to be cleaned may be peeled off by the adhesive force or the coating may be peeled off. Next, a conventional cleaning tool that utilizes clay-like or unhardened rubber can clean the recesses to some extent, but there is a risk that they will be torn in the deep recesses and left in the recesses. This is because the plasticizer and the lubricant reduce the intermolecular cohesive force and have a lubricant-like action, so that the strength is weak and the tear cannot be prevented. On the other hand, if it is made tough with a cross-linking agent, tackifier, thickener or the like in order to prevent tearing, it will not be able to escape from the sticking concave portion due to the adhesiveness, or plastic deformation will not be possible and it will not enter the concave portion.
Because of this risk of being broken off, it is mainly used as a flat dust collector, and it has the advantage that a large amount of dust can be removed by kneading the dust. Further, the clay-like cleaning tool has an affinity for the object to be cleaned due to the nature of its constituent components, and when strongly pressed, the components transfer to the object to be cleaned and stain the surface. And, plasticizers and lubricants cause rashes on people with weak skin. Next, in a cleaning tool in which a gelling substance is made into a clay, the solvent is transferred to the object to be cleaned and becomes a stain, or the solvent solidifies when the solvent evaporates. Once solidified, the performance will be reduced and it will become unusable. The present invention eliminates the above drawbacks,
In particular, the present invention provides a dust removing material that can easily clean dust or the like in deep recesses without adversely affecting the object to be cleaned.

[0004]

[Means for Solving the Problems] In order to achieve the above-mentioned object, it is easily deformed by the force of a human finger, enters into the shape of the uneven portion of the object to be cleaned, and completely comes into close contact therewith to trap dust and the like. It is necessary to be able to pull out without being torn and left behind. And in order not to adversely affect the object to be cleaned,
Compositions that are non-tacky and do not transfer components upon contact are suitable. The present invention has been solved by using a siloxane polymer composed of a boron-containing siloxane as a main component. This boron-containing siloxane polymer is a viscous body that exhibits a unique behavior not found in other substances due to the interaction between oxygen atoms and boron atoms in the polymer. When it is slowly deformed, it behaves like a viscous fluid, sustains elongation like a candy or chewing gum, and undergoes complete plastic deformation. When it is deformed quickly, it behaves like a rigid body, and it breaks like glass at a deformation speed such as hitting with a hammer. In this rigid state, it is a highly elastic body like hardened silicone rubber and bounces well. This viscous body is a viscoelastic body in which two extreme behaviors, viscous fluid and rigid body, appear at the same temperature depending on the deformation rate. In addition, the properties of the boron-containing siloxane polymer are non-sticky because there is no stickiness to the finger,
The components do not transfer to the contacted object. There is no toxicity or skin irritation. This material is known as silicone bouncing putty or simply bouncing putty. All organic substances also show such viscoelastic behavior, but they appear in the region where the rigidification exceeds the deformation rate that can be created by human hands, or they appear at high temperature and high pressure. Boron-containing siloxane polymers exhibit extreme viscoelastic behavior at a rate that can be produced by the human hand. The siloxane polymer is the same as other organic materials because it does not interact with boron unless it contains boron. For example, a clay-like product can be prepared by adding a reinforcing agent to a silicone gum made of dimethylpolysiloxane containing unvulcanized vinyl groups.
It behaves very similarly, but tears quickly without persistent tenacity. For this reason, there is a risk of being torn and left in the recess. Then, although it is not sticky due to the releasability peculiar to the siloxane polymer, the components are transferred. When partially crosslinked to eliminate this migration property, the behavior that behaves like a viscous fluid disappears and it does not enter the concave shape. As described above, the property of the behavior of interaction between oxygen atoms and boron atoms and the non-adhesiveness of the siloxane polymer has an additional effect on the plasticization of the clay-like cleaning tool, which has been a problem in the past. It can be given and replaced. Due to the behavior and properties not found in other substances, the use of this viscous material makes it possible to produce a dust removing material that solves the problems of the present invention. If this siloxane polymer is the only component, it will undergo creep deformation,
If you leave it alone, it will become dull. For this reason, in order to facilitate handling and storage, a reinforcing agent that is non-toxic and has a low reducing property is added as a compounding agent so as to eliminate creep deformation at room temperature, thereby providing self-shape retention and further meeting the purpose. It is characterized in that it is made into a clay-like viscous substance that can be easily deformed by the force of a finger by adding a compounding agent having the above function. The temperature of these compounding agents, that is, the one having a melting point of room temperature or less, becomes a liquid and wets and transfers to the object to be cleaned. Therefore, one that can be powdered at room temperature should be selected. A commercially available composition suitable for the present invention is DC3179 Dilatant Compound (trademark) of Dow Corning Asia Co., Ltd. It is marketed as a bouncing clay and as a toy for children.

[0005]

The function of the present invention will be described. For example, when looking at an electric shaver, there are many recesses such as anti-slip grooves, joint gaps, corners of switches, relief letters, screw tightening portions, blade portions, and mesh portions for introducing whiskers. This is common to all appliances. Dust, hand stains, and beard powder are accumulated and contaminated in the deep recesses. When the dust remover of the present invention is held and pressed slowly into such a recess, the dust remover enters the recess like a viscous fluid. Next, it is completely plastically deformed and completely comes into close contact with the recess. So far, it is no different from conventional clay.
Next, if the dust-removing material is separated at a speed faster than the pressing speed, it is possible to separate the dust-removing material without resistance with the shape of the recessed portion being transferred. This action is because the separation speed, that is, the deformation speed is fast, and the dust removing material behaves like a rigid body, and it is not sticky and has a tenacious elongation. Here, in the conventional clay-like material, rigidification and tenacious elongation do not occur at the same time, so that it is torn or fully extended when it is separated and left in the recess. At the same time as this dust removing material is pulled apart, dust, dirt, and dirt in the back of the recess are also attached.
Then, dust or the like attached to the surface of the dust removing material is kneaded into the dust removing material with a finger so that a clean surface appears, and the dust removing material can be used again in the same state as a new one. Dust that has been taken inside will never come out again. By repeating this operation, the inside of the recess can be cleaned cleanly. Since it is non-adhesive and non-migrating, it does not peel off the coating due to the adhesive force unlike an adhesive, and does not stain the object to be cleaned with a component such as a plasticizer like clay. Further, since it is not tacky, it is a dust remover that is easy to handle without causing discomfort due to stickiness. Further, non-adhesiveness is an advantage, and it is possible to selectively remove only the dust that has entered the fibrous surface such as paper or cloth or the porous body such as bark or gypsum by pressing it gently. If the dust removing material is torn and left in the recess, pressing the dust removing material again causes the dust removing materials to stick to each other. Then, when they are quickly separated, the remaining dust removing material can be attached together and taken out. The dust removing material has a groove width of 0.3 mm and a depth of 0.8.
The dirt accumulated in the millimeter deep groove can be removed. Even if it enters a groove having a width of 0.1 mm, it can be taken out without breaking. Next, the mechanism by which the non-adhesive dust removing material removes dust and dirt will be described in detail. When the dust removing material enters the concave portion like a viscous fluid, it also wraps around the dust and dirt and is completely plastically deformed. In this state, dust and dirt are held by the dust removing material. If they are pulled apart quickly in this state, the dust removing material becomes a rigid body and will leave while holding dust and debris firmly. Here, if there is an elastic return that does not cause complete plastic deformation, dust and the like that have been gripped will be released. For this reason, it must be aided by adhesive strength. Next, when the adhered dirt is viewed in an enlarged manner, the surface may be uneven or porous. The dust remover enters the dirt recesses and holes as a viscous fluid. When they are separated from each other, they become rigid and cannot escape from the recesses or the porous holes. This resistance acts as a force for separating from the object to be cleaned, and selectively removes only dirt. Such a force does not occur on a surface such as painting or a smooth surface. From the above, the dust removing material can remove dust, dirt, and stains without using adhesive force. And, it is apparent that the conventional clay-like cleaning tool containing no boron-containing siloxane polymer cannot clean deep recesses.

[0006]

EXAMPLE A first example of the present invention. To 100 parts of the boron-containing siloxane polymer, 30 parts of dry silica fine powder as a reinforcing agent and 10 parts of titanium oxide fine powder as a coloring agent were added in a weight ratio and mixed by a uniaxial continuous kneader to obtain a white dust removing material. create. Since silica has an affinity with siloxane polymers, it has a reinforcing effect of eliminating creep deformation and increasing the strength of the dust removing material. Titanium oxide is a white colorant, which has an effect of grasping the degree of contamination. This dust remover has a high possibility that a child can put it in his mouth or swallow it.
It is necessary to select compounding agents that are as nontoxic as possible. Since both compounding agents of this example are stable non-toxic oxides, a safe dust remover with stable physical properties can be obtained. This is safe even if the child swallows it. Further, since it is inactive and insoluble, there is no skin disorder such as rash. Since this dust-removing material itself has weather resistance and does not contain volatile components, it was left in the atmosphere at room temperature, but it hardly deteriorated and solidified even after 5 years. Even if incinerated, no toxic gas is generated, and only harmless oxide remains. As a reinforcing agent other than the above examples,
Quartz powder, mica powder, diatomaceous earth, alumina powder, and calcium carbonate can be used, but they are not as effective as silica. Further, as the colorant, an inorganic oxide pigment is most preferable for bouncing putty. The thing to be careful about with these compounding agents is to avoid a strong reducing agent. The reason is that the reducing property weakens the interaction between oxygen atoms and boron atoms, solidifies or softens the dust removing material, and lowers the function.
Specific examples thereof include active metal powders such as copper and silver. The above-mentioned example is the basis of the examples described below, and by adding a functional compounding agent to this, it is possible to produce a dust removing material having an additional effect.

This is a second embodiment of the present invention. This embodiment is a dust removing material that can be used for a long period of time and thus can prevent the growth of bacteria and mold inside the dust removing material. 30 parts of dry silica fine powder as a reinforcing agent is mixed with 100 parts of boron-containing siloxane polymer in a weight ratio by a uniaxial continuous kneader to form a viscous body. The viscous material was mixed with 100 parts of titanium oxide fine powder in a weight ratio of 8 parts of hinokitiol fine powder as a fungicide, and 10 parts of the powder was mixed with a uniaxial continuous kneader to prepare a white dust removing material. It has been confirmed that hinokitiol has an effect of inhibiting the growth of bacteria and mold, and by adding this, it is possible to prevent the growth of bacteria and mold adhering to the dust and dirt that have been taken in. Hinokitiol is also approved as a food additive and is safe for children to swallow. Food additives are preferably selected as the antibacterial agent, and sorbic acid, potassium sorbate, and sodium dehydroacetate can also be used in addition to hinokitiol. Further, as a natural product, wasabi powder or pepper powder can be used. This wasabi powder has an unpleasant taste and has an oral preventive effect. As another method, there is a bactericidal method in which the compounding agent itself is subjected to antimicrobial treatment and then mixed as a filler or the like. For example, diatomaceous earth or the like treated with Biosil (registered trademark) of Dow Corning Asia Co., Ltd. is mixed. An appropriate amount of those having antibacterial effect is blended and used.

This is a third embodiment of the present invention. When cleaning with dust remover, oils and fats attached to the objects to be cleaned and hands are also taken in. Actually, this is because the oil and fat adhered to the dust removing material instead of being taken in. Since this oil and fat is liquid and has an affinity for general substances, it transfers to the object to be cleaned again and stains the surface. This example is a dust removing material which can prevent migration of oils and fats as much as possible by mixing a compounding agent having a function of adsorbing the oils and fats. Boron-containing siloxane polymer 1
25 parts of dry silica fine powder and 8 parts of titanium oxide fine powder as a reinforcing agent are added to 00 parts in a weight ratio and mixed by a uniaxial continuous kneader to prepare a white viscous body. The viscous body is kneaded with 8 parts of degreased cotton powder as an oil and fat adsorbent by a roll mill to prepare a dust removing material. The oils and fats taken in are contacted with and adsorbed inside the cotton powder by kneading the dust removing material at the time of use. Oil and fat adsorbents other than cotton include fine powder of polyester, polyurethane, nylon, and tannin. As the natural product, wood, tea powder, chaff, bamboo, natural fiber, etc., which are porous and degreased fine powder, can be adopted. However, taking into account disposal, natural products are preferred.

Specific uses of the present dust removing material include dust removal and cleaning of the following items. Typical recesses are around the heads of bolts and screws, holes in the heads of bolts and screws,
There are threads, seal faces, and interior and exterior of automobiles. As for the back of complicated shapes, plastic models, artificial flowers, bamboo works,
There are ornaments such as folk crafts, printed circuit boards, and connectors. Special stains include stains on record needles and chips from cutting tools. Those with a special surface include wood skin, paper, dust that has infiltrated into the fibers, grooves on the record board, files and meshes. Items that cannot be wiped because they are scratched by wiping include optical parts, coins, arts and crafts, jewelry, ornaments, optical discs, and archeological materials. Items that cannot be washed with water or solvents include recesses in precision equipment such as electric appliances, electronic parts, cameras, and measuring instruments. As for the human body, there are stains on nails and fingerprints, navel stains, marks around ears, and dandruff. In terms of hygiene, mold spores and pollen are captured and removed. Also,
Since it does not generate dust or dirt due to cleaning, it can be used as a dust removal mat or cleaning tool for clean rooms.

[0010]

As described above, the present invention has the following effects. (A) Since the non-adhesive property and the rigidification do not break the film and leave it in the recess, it is possible to clean a deep recess. (B) Since the operation is just pressing and releasing, no scratches occur. Further, since it is non-adhesive, it does not peel off the material of the cleaning object or peel off the coating. (C) The components do not transfer, so the hands and the objects to be cleaned are not soiled. (D) Since dust and dirt can be kneaded into the dust removing material, a large amount of dust and dirt can be removed. (E) It is safe without toxicity and irritation to the skin. (F) It is ideal for removing mold spores and pollen because it does not scatter dust and debris around. (G) Because of its stable physical properties, it can be stored for a long time.

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Claims (1)

[Claims] 1. A self-maintaining viscosity that is easily deformed with a finger by mixing a siloxane polymer composed of a boron-containing siloxane, which is the main component, with a compounding agent that is nontoxic and less reducible at room temperature and can be easily deformed with a finger. A dust removing material characterized by being used as a body.